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gecko-dev/widget/cocoa/nsChildView.mm
Nicholas Nethercote 52b3d826da Bug 1225007 (part 1, attempt 3) - Use LayoutDevicePixel more in Cocoa widget code. r=kats. 
--HG--
extra : rebase_source : e4b3bb36c18822557f7724a58979eddd9d8cac62
2015-11-19 14:10:38 +11:00

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/* -*- Mode: objc; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/Logging.h"
#include <unistd.h>
#include <math.h>
#include "nsChildView.h"
#include "nsCocoaWindow.h"
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TouchEvents.h"
#include "nsObjCExceptions.h"
#include "nsCOMPtr.h"
#include "nsToolkit.h"
#include "nsCRT.h"
#include "nsFontMetrics.h"
#include "nsIRollupListener.h"
#include "nsViewManager.h"
#include "nsIInterfaceRequestor.h"
#include "nsIFile.h"
#include "nsILocalFileMac.h"
#include "nsGfxCIID.h"
#include "nsIDOMSimpleGestureEvent.h"
#include "nsThemeConstants.h"
#include "nsIWidgetListener.h"
#include "nsIPresShell.h"
#include "nsDragService.h"
#include "nsClipboard.h"
#include "nsCursorManager.h"
#include "nsWindowMap.h"
#include "nsCocoaFeatures.h"
#include "nsCocoaUtils.h"
#include "nsMenuUtilsX.h"
#include "nsMenuBarX.h"
#include "NativeKeyBindings.h"
#include "ComplexTextInputPanel.h"
#include "gfxContext.h"
#include "gfxQuartzSurface.h"
#include "gfxUtils.h"
#include "nsRegion.h"
#include "Layers.h"
#include "ClientLayerManager.h"
#include "mozilla/layers/LayerManagerComposite.h"
#include "GLTextureImage.h"
#include "GLContextProvider.h"
#include "GLContextCGL.h"
#include "GLUploadHelpers.h"
#include "ScopedGLHelpers.h"
#include "HeapCopyOfStackArray.h"
#include "mozilla/layers/APZCTreeManager.h"
#include "mozilla/layers/APZThreadUtils.h"
#include "mozilla/layers/GLManager.h"
#include "mozilla/layers/CompositorOGL.h"
#include "mozilla/layers/CompositorParent.h"
#include "mozilla/layers/BasicCompositor.h"
#include "gfxUtils.h"
#include "gfxPrefs.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/BorrowedContext.h"
#ifdef ACCESSIBILITY
#include "nsAccessibilityService.h"
#include "mozilla/a11y/Platform.h"
#endif
#ifdef MOZ_CRASHREPORTER
#include "nsExceptionHandler.h"
#endif
#include "mozilla/Preferences.h"
#include <dlfcn.h>
#include <ApplicationServices/ApplicationServices.h>
#include "GeckoProfiler.h"
#include "nsIDOMWheelEvent.h"
#include "mozilla/layers/ChromeProcessController.h"
#include "nsLayoutUtils.h"
#include "InputData.h"
#include "SwipeTracker.h"
#include "VibrancyManager.h"
#include "nsNativeThemeCocoa.h"
#include "nsIDOMWindowUtils.h"
using namespace mozilla;
using namespace mozilla::layers;
using namespace mozilla::gl;
using namespace mozilla::widget;
using mozilla::gfx::Matrix4x4;
#undef DEBUG_UPDATE
#undef INVALIDATE_DEBUGGING // flash areas as they are invalidated
// Don't put more than this many rects in the dirty region, just fluff
// out to the bounding-box if there are more
#define MAX_RECTS_IN_REGION 100
PRLogModuleInfo* sCocoaLog = nullptr;
extern "C" {
CG_EXTERN void CGContextResetCTM(CGContextRef);
CG_EXTERN void CGContextSetCTM(CGContextRef, CGAffineTransform);
CG_EXTERN void CGContextResetClip(CGContextRef);
typedef CFTypeRef CGSRegionObj;
CGError CGSNewRegionWithRect(const CGRect *rect, CGSRegionObj *outRegion);
CGError CGSNewRegionWithRectList(const CGRect *rects, int rectCount, CGSRegionObj *outRegion);
}
// defined in nsMenuBarX.mm
extern NSMenu* sApplicationMenu; // Application menu shared by all menubars
static bool gChildViewMethodsSwizzled = false;
extern nsISupportsArray *gDraggedTransferables;
ChildView* ChildViewMouseTracker::sLastMouseEventView = nil;
NSEvent* ChildViewMouseTracker::sLastMouseMoveEvent = nil;
NSWindow* ChildViewMouseTracker::sWindowUnderMouse = nil;
NSPoint ChildViewMouseTracker::sLastScrollEventScreenLocation = NSZeroPoint;
#ifdef INVALIDATE_DEBUGGING
static void blinkRect(Rect* r);
static void blinkRgn(RgnHandle rgn);
#endif
bool gUserCancelledDrag = false;
uint32_t nsChildView::sLastInputEventCount = 0;
static uint32_t gNumberOfWidgetsNeedingEventThread = 0;
@interface ChildView(Private)
// sets up our view, attaching it to its owning gecko view
- (id)initWithFrame:(NSRect)inFrame geckoChild:(nsChildView*)inChild;
- (void)forceRefreshOpenGL;
// set up a gecko mouse event based on a cocoa mouse event
- (void) convertCocoaMouseWheelEvent:(NSEvent*)aMouseEvent
toGeckoEvent:(WidgetWheelEvent*)outWheelEvent;
- (void) convertCocoaMouseEvent:(NSEvent*)aMouseEvent
toGeckoEvent:(WidgetInputEvent*)outGeckoEvent;
- (NSMenu*)contextMenu;
- (BOOL)isRectObscuredBySubview:(NSRect)inRect;
- (void)processPendingRedraws;
- (void)drawRect:(NSRect)aRect inContext:(CGContextRef)aContext;
- (LayoutDeviceIntRegion)nativeDirtyRegionWithBoundingRect:(NSRect)aRect;
- (BOOL)isUsingMainThreadOpenGL;
- (BOOL)isUsingOpenGL;
- (void)drawUsingOpenGL;
- (void)drawUsingOpenGLCallback;
- (BOOL)hasRoundedBottomCorners;
- (CGFloat)cornerRadius;
- (void)clearCorners;
// Overlay drawing functions for traditional CGContext drawing
- (void)drawTitleString;
- (void)drawTitlebarHighlight;
- (void)maskTopCornersInContext:(CGContextRef)aContext;
// Called using performSelector:withObject:afterDelay:0 to release
// aWidgetArray (and its contents) the next time through the run loop.
- (void)releaseWidgets:(NSArray*)aWidgetArray;
#if USE_CLICK_HOLD_CONTEXTMENU
// called on a timer two seconds after a mouse down to see if we should display
// a context menu (click-hold)
- (void)clickHoldCallback:(id)inEvent;
#endif
#ifdef ACCESSIBILITY
- (id<mozAccessible>)accessible;
#endif
- (nsIntPoint)convertWindowCoordinates:(NSPoint)aPoint;
- (APZCTreeManager*)apzctm;
- (BOOL)inactiveWindowAcceptsMouseEvent:(NSEvent*)aEvent;
- (void)updateWindowDraggableState;
- (bool)shouldConsiderStartingSwipeFromEvent:(NSEvent*)aEvent;
@end
@interface EventThreadRunner : NSObject
{
NSThread* mThread;
}
- (id)init;
+ (void)start;
+ (void)stop;
@end
@interface NSView(NSThemeFrameCornerRadius)
- (float)roundedCornerRadius;
@end
@interface NSView(DraggableRegion)
- (CGSRegionObj)_regionForOpaqueDescendants:(NSRect)aRect forMove:(BOOL)aForMove;
- (CGSRegionObj)_regionForOpaqueDescendants:(NSRect)aRect forMove:(BOOL)aForMove forUnderTitlebar:(BOOL)aForUnderTitlebar;
@end
@interface NSWindow(NSWindowShouldZoomOnDoubleClick)
+ (BOOL)_shouldZoomOnDoubleClick; // present on 10.7 and above
@end
// Starting with 10.7 the bottom corners of all windows are rounded.
// Unfortunately, the standard rounding that OS X applies to OpenGL views
// does not use anti-aliasing and looks very crude. Since we want a smooth,
// anti-aliased curve, we'll draw it ourselves.
// Additionally, we need to turn off the OS-supplied rounding because it
// eats into our corner's curve. We do that by overriding an NSSurface method.
@interface NSSurface @end
@implementation NSSurface(DontCutOffCorners)
- (CGSRegionObj)_createRoundedBottomRegionForRect:(CGRect)rect
{
// Create a normal rect region without rounded bottom corners.
CGSRegionObj region;
CGSNewRegionWithRect(&rect, &region);
return region;
}
@end
#pragma mark -
// Flips a screen coordinate from a point in the cocoa coordinate system (bottom-left rect) to a point
// that is a "flipped" cocoa coordinate system (starts in the top-left).
static inline void
FlipCocoaScreenCoordinate(NSPoint &inPoint)
{
inPoint.y = nsCocoaUtils::FlippedScreenY(inPoint.y);
}
void EnsureLogInitialized()
{
if (!sCocoaLog) {
sCocoaLog = PR_NewLogModule("nsCocoaWidgets");
}
}
namespace {
// Manages a texture which can resize dynamically, binds to the
// LOCAL_GL_TEXTURE_RECTANGLE_ARB texture target and is automatically backed
// by a power-of-two size GL texture. The latter two features are used for
// compatibility with older Mac hardware which we block GL layers on.
// RectTextureImages are used both for accelerated GL layers drawing and for
// OMTC BasicLayers drawing.
class RectTextureImage {
public:
explicit RectTextureImage(GLContext* aGLContext)
: mGLContext(aGLContext)
, mTexture(0)
, mInUpdate(false)
{}
virtual ~RectTextureImage();
already_AddRefed<gfx::DrawTarget>
BeginUpdate(const LayoutDeviceIntSize& aNewSize,
const LayoutDeviceIntRegion& aDirtyRegion =
LayoutDeviceIntRegion());
void EndUpdate(bool aKeepSurface = false);
void UpdateIfNeeded(const LayoutDeviceIntSize& aNewSize,
const LayoutDeviceIntRegion& aDirtyRegion,
void (^aCallback)(gfx::DrawTarget*,
const LayoutDeviceIntRegion&))
{
RefPtr<gfx::DrawTarget> drawTarget = BeginUpdate(aNewSize, aDirtyRegion);
if (drawTarget) {
aCallback(drawTarget, GetUpdateRegion());
EndUpdate();
}
}
void UpdateFromCGContext(const LayoutDeviceIntSize& aNewSize,
const LayoutDeviceIntRegion& aDirtyRegion,
CGContextRef aCGContext);
LayoutDeviceIntRegion GetUpdateRegion() {
MOZ_ASSERT(mInUpdate, "update region only valid during update");
return mUpdateRegion;
}
void Draw(mozilla::layers::GLManager* aManager,
const LayoutDeviceIntPoint& aLocation,
const Matrix4x4& aTransform = Matrix4x4());
static LayoutDeviceIntSize TextureSizeForSize(
const LayoutDeviceIntSize& aSize);
protected:
RefPtr<gfx::DrawTarget> mUpdateDrawTarget;
GLContext* mGLContext;
LayoutDeviceIntRegion mUpdateRegion;
LayoutDeviceIntSize mUsedSize;
LayoutDeviceIntSize mBufferSize;
LayoutDeviceIntSize mTextureSize;
GLuint mTexture;
bool mInUpdate;
};
// Used for OpenGL drawing from the compositor thread for OMTC BasicLayers.
// We need to use OpenGL for this because there seems to be no other robust
// way of drawing from a secondary thread without locking, which would cause
// deadlocks in our setup. See bug 882523.
class GLPresenter : public GLManager
{
public:
static GLPresenter* CreateForWindow(nsIWidget* aWindow)
{
RefPtr<GLContext> context = gl::GLContextProvider::CreateForWindow(aWindow);
return context ? new GLPresenter(context) : nullptr;
}
explicit GLPresenter(GLContext* aContext);
virtual ~GLPresenter();
virtual GLContext* gl() const override { return mGLContext; }
virtual ShaderProgramOGL* GetProgram(GLenum aTarget, gfx::SurfaceFormat aFormat) override
{
MOZ_ASSERT(aTarget == LOCAL_GL_TEXTURE_RECTANGLE_ARB);
MOZ_ASSERT(aFormat == gfx::SurfaceFormat::R8G8B8A8);
return mRGBARectProgram;
}
virtual const gfx::Matrix4x4& GetProjMatrix() const override
{
return mProjMatrix;
}
virtual void ActivateProgram(ShaderProgramOGL *aProg) override
{
mGLContext->fUseProgram(aProg->GetProgram());
}
virtual void BindAndDrawQuad(ShaderProgramOGL *aProg,
const gfx::Rect& aLayerRect,
const gfx::Rect& aTextureRect) override;
void BeginFrame(LayoutDeviceIntSize aRenderSize);
void EndFrame();
NSOpenGLContext* GetNSOpenGLContext()
{
return GLContextCGL::Cast(mGLContext)->GetNSOpenGLContext();
}
protected:
RefPtr<mozilla::gl::GLContext> mGLContext;
nsAutoPtr<mozilla::layers::ShaderProgramOGL> mRGBARectProgram;
gfx::Matrix4x4 mProjMatrix;
GLuint mQuadVBO;
};
} // unnamed namespace
namespace mozilla {
struct SwipeEventQueue {
SwipeEventQueue(uint32_t aAllowedDirections, uint64_t aInputBlockId)
: allowedDirections(aAllowedDirections)
, inputBlockId(aInputBlockId)
{}
nsTArray<PanGestureInput> queuedEvents;
uint32_t allowedDirections;
uint64_t inputBlockId;
};
} // namespace mozilla
#pragma mark -
nsChildView::nsChildView() : nsBaseWidget()
, mView(nullptr)
, mParentView(nullptr)
, mParentWidget(nullptr)
, mViewTearDownLock("ChildViewTearDown")
, mEffectsLock("WidgetEffects")
, mShowsResizeIndicator(false)
, mHasRoundedBottomCorners(false)
, mIsCoveringTitlebar(false)
, mIsFullscreen(false)
, mTitlebarCGContext(nullptr)
, mBackingScaleFactor(0.0)
, mVisible(false)
, mDrawing(false)
, mIsDispatchPaint(false)
{
EnsureLogInitialized();
}
nsChildView::~nsChildView()
{
ReleaseTitlebarCGContext();
if (mSwipeTracker) {
mSwipeTracker->Destroy();
mSwipeTracker = nullptr;
}
// Notify the children that we're gone. childView->ResetParent() can change
// our list of children while it's being iterated, so the way we iterate the
// list must allow for this.
for (nsIWidget* kid = mLastChild; kid;) {
nsChildView* childView = static_cast<nsChildView*>(kid);
kid = kid->GetPrevSibling();
childView->ResetParent();
}
NS_WARN_IF_FALSE(mOnDestroyCalled, "nsChildView object destroyed without calling Destroy()");
DestroyCompositor();
if (mAPZC && gfxPrefs::AsyncPanZoomSeparateEventThread()) {
gNumberOfWidgetsNeedingEventThread--;
if (gNumberOfWidgetsNeedingEventThread == 0) {
[EventThreadRunner stop];
}
}
// An nsChildView object that was in use can be destroyed without Destroy()
// ever being called on it. So we also need to do a quick, safe cleanup
// here (it's too late to just call Destroy(), which can cause crashes).
// It's particularly important to make sure widgetDestroyed is called on our
// mView -- this method NULLs mView's mGeckoChild, and NULL checks on
// mGeckoChild are used throughout the ChildView class to tell if it's safe
// to use a ChildView object.
[mView widgetDestroyed]; // Safe if mView is nil.
mParentWidget = nil;
TearDownView(); // Safe if called twice.
}
void
nsChildView::ReleaseTitlebarCGContext()
{
if (mTitlebarCGContext) {
CGContextRelease(mTitlebarCGContext);
mTitlebarCGContext = nullptr;
}
}
nsresult nsChildView::Create(nsIWidget *aParent,
nsNativeWidget aNativeParent,
const nsIntRect &aRect,
nsWidgetInitData *aInitData)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Because the hidden window is created outside of an event loop,
// we need to provide an autorelease pool to avoid leaking cocoa objects
// (see bug 559075).
nsAutoreleasePool localPool;
// See NSView (MethodSwizzling) below.
if (!gChildViewMethodsSwizzled) {
nsToolkit::SwizzleMethods([NSView class], @selector(mouseDownCanMoveWindow),
@selector(nsChildView_NSView_mouseDownCanMoveWindow));
#ifdef __LP64__
if (nsCocoaFeatures::OnLionOrLater()) {
nsToolkit::SwizzleMethods([NSEvent class], @selector(addLocalMonitorForEventsMatchingMask:handler:),
@selector(nsChildView_NSEvent_addLocalMonitorForEventsMatchingMask:handler:),
true);
nsToolkit::SwizzleMethods([NSEvent class], @selector(removeMonitor:),
@selector(nsChildView_NSEvent_removeMonitor:), true);
}
#endif
gChildViewMethodsSwizzled = true;
}
mBounds = aRect;
// Ensure that the toolkit is created.
nsToolkit::GetToolkit();
BaseCreate(aParent, aRect, aInitData);
// inherit things from the parent view and create our parallel
// NSView in the Cocoa display system
mParentView = nil;
if (aParent) {
// inherit the top-level window. NS_NATIVE_WIDGET is always a NSView
// regardless of if we're asking a window or a view (for compatibility
// with windows).
mParentView = (NSView<mozView>*)aParent->GetNativeData(NS_NATIVE_WIDGET);
mParentWidget = aParent;
} else {
// This is the normal case. When we're the root widget of the view hiararchy,
// aNativeParent will be the contentView of our window, since that's what
// nsCocoaWindow returns when asked for an NS_NATIVE_VIEW.
mParentView = reinterpret_cast<NSView<mozView>*>(aNativeParent);
}
// create our parallel NSView and hook it up to our parent. Recall
// that NS_NATIVE_WIDGET is the NSView.
CGFloat scaleFactor = nsCocoaUtils::GetBackingScaleFactor(mParentView);
NSRect r = nsCocoaUtils::DevPixelsToCocoaPoints(
LayoutDeviceIntRect::FromUnknownRect(mBounds), scaleFactor);
mView = [(NSView<mozView>*)CreateCocoaView(r) retain];
if (!mView) {
return NS_ERROR_FAILURE;
}
// If this view was created in a Gecko view hierarchy, the initial state
// is hidden. If the view is attached only to a native NSView but has
// no Gecko parent (as in embedding), the initial state is visible.
if (mParentWidget)
[mView setHidden:YES];
else
mVisible = true;
// Hook it up in the NSView hierarchy.
if (mParentView) {
[mParentView addSubview:mView];
}
// if this is a ChildView, make sure that our per-window data
// is set up
if ([mView isKindOfClass:[ChildView class]])
[[WindowDataMap sharedWindowDataMap] ensureDataForWindow:[mView window]];
NS_ASSERTION(!mTextInputHandler, "mTextInputHandler has already existed");
mTextInputHandler = new TextInputHandler(this, mView);
mPluginFocused = false;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// Creates the appropriate child view. Override to create something other than
// our |ChildView| object. Autoreleases, so caller must retain.
NSView*
nsChildView::CreateCocoaView(NSRect inFrame)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
return [[[ChildView alloc] initWithFrame:inFrame geckoChild:this] autorelease];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
void nsChildView::TearDownView()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mView)
return;
NSWindow* win = [mView window];
NSResponder* responder = [win firstResponder];
// We're being unhooked from the view hierarchy, don't leave our view
// or a child view as the window first responder.
if (responder && [responder isKindOfClass:[NSView class]] &&
[(NSView*)responder isDescendantOf:mView]) {
[win makeFirstResponder:[mView superview]];
}
// If mView is win's contentView, win (mView's NSWindow) "owns" mView --
// win has retained mView, and will detach it from the view hierarchy and
// release it when necessary (when win is itself destroyed (in a call to
// [win dealloc])). So all we need to do here is call [mView release] (to
// match the call to [mView retain] in nsChildView::StandardCreate()).
// Also calling [mView removeFromSuperviewWithoutNeedingDisplay] causes
// mView to be released again and dealloced, while remaining win's
// contentView. So if we do that here, win will (for a short while) have
// an invalid contentView (for the consequences see bmo bugs 381087 and
// 374260).
if ([mView isEqual:[win contentView]]) {
[mView release];
} else {
// Stop NSView hierarchy being changed during [ChildView drawRect:]
[mView performSelectorOnMainThread:@selector(delayedTearDown) withObject:nil waitUntilDone:false];
}
mView = nil;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsCocoaWindow*
nsChildView::GetXULWindowWidget()
{
id windowDelegate = [[mView window] delegate];
if (windowDelegate && [windowDelegate isKindOfClass:[WindowDelegate class]]) {
return [(WindowDelegate *)windowDelegate geckoWidget];
}
return nullptr;
}
NS_IMETHODIMP nsChildView::Destroy()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Make sure that no composition is in progress while disconnecting
// ourselves from the view.
MutexAutoLock lock(mViewTearDownLock);
if (mOnDestroyCalled)
return NS_OK;
mOnDestroyCalled = true;
[mView widgetDestroyed];
nsBaseWidget::Destroy();
NotifyWindowDestroyed();
mParentWidget = nil;
TearDownView();
nsBaseWidget::OnDestroy();
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
#pragma mark -
#if 0
static void PrintViewHierarchy(NSView *view)
{
while (view) {
NSLog(@" view is %x, frame %@", view, NSStringFromRect([view frame]));
view = [view superview];
}
}
#endif
// Return native data according to aDataType
void* nsChildView::GetNativeData(uint32_t aDataType)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSNULL;
void* retVal = nullptr;
switch (aDataType)
{
case NS_NATIVE_WIDGET:
case NS_NATIVE_DISPLAY:
retVal = (void*)mView;
break;
case NS_NATIVE_WINDOW:
retVal = [mView window];
break;
case NS_NATIVE_GRAPHIC:
NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a Mac OS X child view!");
retVal = nullptr;
break;
case NS_NATIVE_OFFSETX:
retVal = 0;
break;
case NS_NATIVE_OFFSETY:
retVal = 0;
break;
}
return retVal;
NS_OBJC_END_TRY_ABORT_BLOCK_NSNULL;
}
#pragma mark -
nsTransparencyMode nsChildView::GetTransparencyMode()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
nsCocoaWindow* windowWidget = GetXULWindowWidget();
return windowWidget ? windowWidget->GetTransparencyMode() : eTransparencyOpaque;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(eTransparencyOpaque);
}
// This is called by nsContainerFrame on the root widget for all window types
// except popup windows (when nsCocoaWindow::SetTransparencyMode is used instead).
void nsChildView::SetTransparencyMode(nsTransparencyMode aMode)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
nsCocoaWindow* windowWidget = GetXULWindowWidget();
if (windowWidget) {
windowWidget->SetTransparencyMode(aMode);
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
bool nsChildView::IsVisible() const
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (!mVisible) {
return mVisible;
}
// mVisible does not accurately reflect the state of a hidden tabbed view
// so verify that the view has a window as well
// then check native widget hierarchy visibility
return ([mView window] != nil) && !NSIsEmptyRect([mView visibleRect]);
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
// Some NSView methods (e.g. setFrame and setHidden) invalidate the view's
// bounds in our window. However, we don't want these invalidations because
// they are unnecessary and because they actually slow us down since we
// block on the compositor inside drawRect.
// When we actually need something invalidated, there will be an explicit call
// to Invalidate from Gecko, so turning these automatic invalidations off
// won't hurt us in the non-OMTC case.
// The invalidations inside these NSView methods happen via a call to the
// private method -[NSWindow _setNeedsDisplayInRect:]. Our BaseWindow
// implementation of that method is augmented to let us ignore those calls
// using -[BaseWindow disable/enableSetNeedsDisplay].
static void
ManipulateViewWithoutNeedingDisplay(NSView* aView, void (^aCallback)())
{
BaseWindow* win = nil;
if ([[aView window] isKindOfClass:[BaseWindow class]]) {
win = (BaseWindow*)[aView window];
}
[win disableSetNeedsDisplay];
aCallback();
[win enableSetNeedsDisplay];
}
// Hide or show this component
NS_IMETHODIMP nsChildView::Show(bool aState)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (aState != mVisible) {
// Provide an autorelease pool because this gets called during startup
// on the "hidden window", resulting in cocoa object leakage if there's
// no pool in place.
nsAutoreleasePool localPool;
ManipulateViewWithoutNeedingDisplay(mView, ^{
[mView setHidden:!aState];
});
mVisible = aState;
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// Change the parent of this widget
NS_IMETHODIMP
nsChildView::SetParent(nsIWidget* aNewParent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (mOnDestroyCalled)
return NS_OK;
nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
if (mParentWidget) {
mParentWidget->RemoveChild(this);
}
if (aNewParent) {
ReparentNativeWidget(aNewParent);
} else {
[mView removeFromSuperview];
mParentView = nil;
}
mParentWidget = aNewParent;
if (mParentWidget) {
mParentWidget->AddChild(this);
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP
nsChildView::ReparentNativeWidget(nsIWidget* aNewParent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
NS_PRECONDITION(aNewParent, "");
if (mOnDestroyCalled)
return NS_OK;
NSView<mozView>* newParentView =
(NSView<mozView>*)aNewParent->GetNativeData(NS_NATIVE_WIDGET);
NS_ENSURE_TRUE(newParentView, NS_ERROR_FAILURE);
// we hold a ref to mView, so this is safe
[mView removeFromSuperview];
mParentView = newParentView;
[mParentView addSubview:mView];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsChildView::ResetParent()
{
if (!mOnDestroyCalled) {
if (mParentWidget)
mParentWidget->RemoveChild(this);
if (mView)
[mView removeFromSuperview];
}
mParentWidget = nullptr;
}
nsIWidget*
nsChildView::GetParent()
{
return mParentWidget;
}
float
nsChildView::GetDPI()
{
NSWindow* window = [mView window];
if (window && [window isKindOfClass:[BaseWindow class]]) {
return [(BaseWindow*)window getDPI];
}
return 96.0;
}
NS_IMETHODIMP nsChildView::Enable(bool aState)
{
return NS_OK;
}
bool nsChildView::IsEnabled() const
{
return true;
}
NS_IMETHODIMP nsChildView::SetFocus(bool aRaise)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
NSWindow* window = [mView window];
if (window)
[window makeFirstResponder:mView];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// Override to set the cursor on the mac
NS_IMETHODIMP nsChildView::SetCursor(nsCursor aCursor)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if ([mView isDragInProgress])
return NS_OK; // Don't change the cursor during dragging.
nsBaseWidget::SetCursor(aCursor);
return [[nsCursorManager sharedInstance] setCursor:aCursor];
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// implement to fix "hidden virtual function" warning
NS_IMETHODIMP nsChildView::SetCursor(imgIContainer* aCursor,
uint32_t aHotspotX, uint32_t aHotspotY)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsBaseWidget::SetCursor(aCursor, aHotspotX, aHotspotY);
return [[nsCursorManager sharedInstance] setCursorWithImage:aCursor hotSpotX:aHotspotX hotSpotY:aHotspotY scaleFactor:BackingScaleFactor()];
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
#pragma mark -
// Get this component dimension
NS_IMETHODIMP nsChildView::GetBounds(LayoutDeviceIntRect& aRect)
{
aRect = !mView
? LayoutDeviceIntRect::FromUnknownRect(mBounds)
: CocoaPointsToDevPixels([mView frame]);
return NS_OK;
}
NS_IMETHODIMP nsChildView::GetClientBounds(mozilla::LayoutDeviceIntRect& aRect)
{
GetBounds(aRect);
if (!mParentWidget) {
// For top level widgets we want the position on screen, not the position
// of this view inside the window.
aRect.MoveTo(WidgetToScreenOffset());
}
return NS_OK;
}
NS_IMETHODIMP nsChildView::GetScreenBounds(LayoutDeviceIntRect& aRect)
{
GetBounds(aRect);
aRect.MoveTo(WidgetToScreenOffset());
return NS_OK;
}
double
nsChildView::GetDefaultScaleInternal()
{
return BackingScaleFactor();
}
CGFloat
nsChildView::BackingScaleFactor() const
{
if (mBackingScaleFactor > 0.0) {
return mBackingScaleFactor;
}
if (!mView) {
return 1.0;
}
mBackingScaleFactor = nsCocoaUtils::GetBackingScaleFactor(mView);
return mBackingScaleFactor;
}
void
nsChildView::BackingScaleFactorChanged()
{
CGFloat newScale = nsCocoaUtils::GetBackingScaleFactor(mView);
// ignore notification if it hasn't really changed (or maybe we have
// disabled HiDPI mode via prefs)
if (mBackingScaleFactor == newScale) {
return;
}
mBackingScaleFactor = newScale;
if (mWidgetListener && !mWidgetListener->GetXULWindow()) {
nsIPresShell* presShell = mWidgetListener->GetPresShell();
if (presShell) {
presShell->BackingScaleFactorChanged();
}
}
}
int32_t
nsChildView::RoundsWidgetCoordinatesTo()
{
if (BackingScaleFactor() == 2.0) {
return 2;
}
return 1;
}
NS_IMETHODIMP nsChildView::ConstrainPosition(bool aAllowSlop,
int32_t *aX, int32_t *aY)
{
return NS_OK;
}
// Move this component, aX and aY are in the parent widget coordinate system
NS_IMETHODIMP nsChildView::Move(double aX, double aY)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
int32_t x = NSToIntRound(aX);
int32_t y = NSToIntRound(aY);
if (!mView || (mBounds.x == x && mBounds.y == y))
return NS_OK;
mBounds.x = x;
mBounds.y = y;
ManipulateViewWithoutNeedingDisplay(mView, ^{
[mView setFrame:UntypedDevPixelsToCocoaPoints(mBounds)];
});
NotifyRollupGeometryChange();
ReportMoveEvent();
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsChildView::Resize(double aWidth, double aHeight, bool aRepaint)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
int32_t width = NSToIntRound(aWidth);
int32_t height = NSToIntRound(aHeight);
if (!mView || (mBounds.width == width && mBounds.height == height))
return NS_OK;
mBounds.width = width;
mBounds.height = height;
ManipulateViewWithoutNeedingDisplay(mView, ^{
[mView setFrame:UntypedDevPixelsToCocoaPoints(mBounds)];
});
if (mVisible && aRepaint)
[mView setNeedsDisplay:YES];
NotifyRollupGeometryChange();
ReportSizeEvent();
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsChildView::Resize(double aX, double aY,
double aWidth, double aHeight, bool aRepaint)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
int32_t x = NSToIntRound(aX);
int32_t y = NSToIntRound(aY);
int32_t width = NSToIntRound(aWidth);
int32_t height = NSToIntRound(aHeight);
BOOL isMoving = (mBounds.x != x || mBounds.y != y);
BOOL isResizing = (mBounds.width != width || mBounds.height != height);
if (!mView || (!isMoving && !isResizing))
return NS_OK;
if (isMoving) {
mBounds.x = x;
mBounds.y = y;
}
if (isResizing) {
mBounds.width = width;
mBounds.height = height;
}
ManipulateViewWithoutNeedingDisplay(mView, ^{
[mView setFrame:UntypedDevPixelsToCocoaPoints(mBounds)];
});
if (mVisible && aRepaint)
[mView setNeedsDisplay:YES];
NotifyRollupGeometryChange();
if (isMoving) {
ReportMoveEvent();
if (mOnDestroyCalled)
return NS_OK;
}
if (isResizing)
ReportSizeEvent();
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
static const int32_t resizeIndicatorWidth = 15;
static const int32_t resizeIndicatorHeight = 15;
bool nsChildView::ShowsResizeIndicator(LayoutDeviceIntRect* aResizerRect)
{
NSView *topLevelView = mView, *superView = nil;
while ((superView = [topLevelView superview]))
topLevelView = superView;
if (![[topLevelView window] showsResizeIndicator] ||
!([[topLevelView window] styleMask] & NSResizableWindowMask))
return false;
if (aResizerRect) {
NSSize bounds = [topLevelView bounds].size;
NSPoint corner = NSMakePoint(bounds.width, [topLevelView isFlipped] ? bounds.height : 0);
corner = [topLevelView convertPoint:corner toView:mView];
aResizerRect->SetRect(NSToIntRound(corner.x) - resizeIndicatorWidth,
NSToIntRound(corner.y) - resizeIndicatorHeight,
resizeIndicatorWidth, resizeIndicatorHeight);
}
return true;
}
nsresult nsChildView::SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout,
int32_t aNativeKeyCode,
uint32_t aModifierFlags,
const nsAString& aCharacters,
const nsAString& aUnmodifiedCharacters,
nsIObserver* aObserver)
{
AutoObserverNotifier notifier(aObserver, "keyevent");
return mTextInputHandler->SynthesizeNativeKeyEvent(aNativeKeyboardLayout,
aNativeKeyCode,
aModifierFlags,
aCharacters,
aUnmodifiedCharacters);
}
nsresult nsChildView::SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint,
uint32_t aNativeMessage,
uint32_t aModifierFlags,
nsIObserver* aObserver)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
AutoObserverNotifier notifier(aObserver, "mouseevent");
NSPoint pt =
nsCocoaUtils::DevPixelsToCocoaPoints(aPoint, BackingScaleFactor());
// Move the mouse cursor to the requested position and reconnect it to the mouse.
CGWarpMouseCursorPosition(NSPointToCGPoint(pt));
CGAssociateMouseAndMouseCursorPosition(true);
// aPoint is given with the origin on the top left, but convertScreenToBase
// expects a point in a coordinate system that has its origin on the bottom left.
NSPoint screenPoint = NSMakePoint(pt.x, nsCocoaUtils::FlippedScreenY(pt.y));
NSPoint windowPoint = [[mView window] convertScreenToBase:screenPoint];
NSEvent* event = [NSEvent mouseEventWithType:(NSEventType)aNativeMessage
location:windowPoint
modifierFlags:aModifierFlags
timestamp:[[NSProcessInfo processInfo] systemUptime]
windowNumber:[[mView window] windowNumber]
context:nil
eventNumber:0
clickCount:1
pressure:0.0];
if (!event)
return NS_ERROR_FAILURE;
if ([[mView window] isKindOfClass:[BaseWindow class]]) {
// Tracking area events don't end up in their tracking areas when sent
// through [NSApp sendEvent:], so pass them directly to the right methods.
BaseWindow* window = (BaseWindow*)[mView window];
if (aNativeMessage == NSMouseEntered) {
[window mouseEntered:event];
return NS_OK;
}
if (aNativeMessage == NSMouseExited) {
[window mouseExited:event];
return NS_OK;
}
if (aNativeMessage == NSMouseMoved) {
[window mouseMoved:event];
return NS_OK;
}
}
[NSApp sendEvent:event];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult nsChildView::SynthesizeNativeMouseScrollEvent(mozilla::LayoutDeviceIntPoint aPoint,
uint32_t aNativeMessage,
double aDeltaX,
double aDeltaY,
double aDeltaZ,
uint32_t aModifierFlags,
uint32_t aAdditionalFlags,
nsIObserver* aObserver)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
AutoObserverNotifier notifier(aObserver, "mousescrollevent");
NSPoint pt =
nsCocoaUtils::DevPixelsToCocoaPoints(aPoint, BackingScaleFactor());
// Move the mouse cursor to the requested position and reconnect it to the mouse.
CGWarpMouseCursorPosition(NSPointToCGPoint(pt));
CGAssociateMouseAndMouseCursorPosition(true);
// Mostly copied from http://stackoverflow.com/a/6130349
CGScrollEventUnit units =
(aAdditionalFlags & nsIDOMWindowUtils::MOUSESCROLL_SCROLL_LINES)
? kCGScrollEventUnitLine : kCGScrollEventUnitPixel;
CGEventRef cgEvent = CGEventCreateScrollWheelEvent(NULL, units, 3, aDeltaY, aDeltaX, aDeltaZ);
if (!cgEvent) {
return NS_ERROR_FAILURE;
}
CGEventPost(kCGHIDEventTap, cgEvent);
CFRelease(cgEvent);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// First argument has to be an NSMenu representing the application's top-level
// menu bar. The returned item is *not* retained.
static NSMenuItem* NativeMenuItemWithLocation(NSMenu* menubar, NSString* locationString)
{
NSArray* indexes = [locationString componentsSeparatedByString:@"|"];
unsigned int indexCount = [indexes count];
if (indexCount == 0)
return nil;
NSMenu* currentSubmenu = [NSApp mainMenu];
for (unsigned int i = 0; i < indexCount; i++) {
int targetIndex;
// We remove the application menu from consideration for the top-level menu
if (i == 0)
targetIndex = [[indexes objectAtIndex:i] intValue] + 1;
else
targetIndex = [[indexes objectAtIndex:i] intValue];
int itemCount = [currentSubmenu numberOfItems];
if (targetIndex < itemCount) {
NSMenuItem* menuItem = [currentSubmenu itemAtIndex:targetIndex];
// if this is the last index just return the menu item
if (i == (indexCount - 1))
return menuItem;
// if this is not the last index find the submenu and keep going
if ([menuItem hasSubmenu])
currentSubmenu = [menuItem submenu];
else
return nil;
}
}
return nil;
}
// Used for testing native menu system structure and event handling.
NS_IMETHODIMP nsChildView::ActivateNativeMenuItemAt(const nsAString& indexString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
NSString* locationString = [NSString stringWithCharacters:reinterpret_cast<const unichar*>(indexString.BeginReading())
length:indexString.Length()];
NSMenuItem* item = NativeMenuItemWithLocation([NSApp mainMenu], locationString);
// We can't perform an action on an item with a submenu, that will raise
// an obj-c exception.
if (item && ![item hasSubmenu]) {
NSMenu* parent = [item menu];
if (parent) {
// NSLog(@"Performing action for native menu item titled: %@\n",
// [[currentSubmenu itemAtIndex:targetIndex] title]);
[parent performActionForItemAtIndex:[parent indexOfItem:item]];
return NS_OK;
}
}
return NS_ERROR_FAILURE;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// Used for testing native menu system structure and event handling.
NS_IMETHODIMP nsChildView::ForceUpdateNativeMenuAt(const nsAString& indexString)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsCocoaWindow *widget = GetXULWindowWidget();
if (widget) {
nsMenuBarX* mb = widget->GetMenuBar();
if (mb) {
if (indexString.IsEmpty())
mb->ForceNativeMenuReload();
else
mb->ForceUpdateNativeMenuAt(indexString);
}
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
#pragma mark -
#ifdef INVALIDATE_DEBUGGING
static Boolean KeyDown(const UInt8 theKey)
{
KeyMap map;
GetKeys(map);
return ((*((UInt8 *)map + (theKey >> 3)) >> (theKey & 7)) & 1) != 0;
}
static Boolean caps_lock()
{
return KeyDown(0x39);
}
static void blinkRect(Rect* r)
{
StRegionFromPool oldClip;
if (oldClip != NULL)
::GetClip(oldClip);
::ClipRect(r);
::InvertRect(r);
UInt32 end = ::TickCount() + 5;
while (::TickCount() < end) ;
::InvertRect(r);
if (oldClip != NULL)
::SetClip(oldClip);
}
static void blinkRgn(RgnHandle rgn)
{
StRegionFromPool oldClip;
if (oldClip != NULL)
::GetClip(oldClip);
::SetClip(rgn);
::InvertRgn(rgn);
UInt32 end = ::TickCount() + 5;
while (::TickCount() < end) ;
::InvertRgn(rgn);
if (oldClip != NULL)
::SetClip(oldClip);
}
#endif
// Invalidate this component's visible area
NS_IMETHODIMP nsChildView::Invalidate(const nsIntRect &aRect)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (!mView || !mVisible)
return NS_OK;
NS_ASSERTION(GetLayerManager()->GetBackendType() != LayersBackend::LAYERS_CLIENT,
"Shouldn't need to invalidate with accelerated OMTC layers!");
if ([NSView focusView]) {
// if a view is focussed (i.e. being drawn), then postpone the invalidate so that we
// don't lose it.
[mView setNeedsPendingDisplayInRect:UntypedDevPixelsToCocoaPoints(aRect)];
}
else {
[mView setNeedsDisplayInRect:UntypedDevPixelsToCocoaPoints(aRect)];
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
bool
nsChildView::ComputeShouldAccelerate()
{
// Don't use OpenGL for transparent windows or for popup windows.
if (!mView || ![[mView window] isOpaque] ||
[[mView window] isKindOfClass:[PopupWindow class]])
return false;
return nsBaseWidget::ComputeShouldAccelerate();
}
bool
nsChildView::ShouldUseOffMainThreadCompositing()
{
// Don't use OMTC for transparent windows or for popup windows.
if (!mView || ![[mView window] isOpaque] ||
[[mView window] isKindOfClass:[PopupWindow class]])
return false;
return nsBaseWidget::ShouldUseOffMainThreadCompositing();
}
inline uint16_t COLOR8TOCOLOR16(uint8_t color8)
{
// return (color8 == 0xFF ? 0xFFFF : (color8 << 8));
return (color8 << 8) | color8; /* (color8 * 257) == (color8 * 0x0101) */
}
#pragma mark -
nsresult nsChildView::ConfigureChildren(const nsTArray<Configuration>& aConfigurations)
{
return NS_OK;
}
// Invokes callback and ProcessEvent methods on Event Listener object
NS_IMETHODIMP nsChildView::DispatchEvent(WidgetGUIEvent* event,
nsEventStatus& aStatus)
{
#ifdef DEBUG
debug_DumpEvent(stdout, event->widget, event, nsAutoCString("something"), 0);
#endif
NS_ASSERTION(!(mTextInputHandler && mTextInputHandler->IsIMEComposing() &&
event->HasKeyEventMessage()),
"Any key events should not be fired during IME composing");
if (event->mFlags.mIsSynthesizedForTests) {
WidgetKeyboardEvent* keyEvent = event->AsKeyboardEvent();
if (keyEvent) {
nsresult rv = mTextInputHandler->AttachNativeKeyEvent(*keyEvent);
NS_ENSURE_SUCCESS(rv, rv);
}
}
aStatus = nsEventStatus_eIgnore;
nsIWidgetListener* listener = mWidgetListener;
// If the listener is NULL, check if the parent is a popup. If it is, then
// this child is the popup content view attached to a popup. Get the
// listener from the parent popup instead.
nsCOMPtr<nsIWidget> kungFuDeathGrip = do_QueryInterface(mParentWidget ? mParentWidget : this);
if (!listener && mParentWidget) {
if (mParentWidget->WindowType() == eWindowType_popup) {
// Check just in case event->widget isn't this widget
if (event->widget)
listener = event->widget->GetWidgetListener();
if (!listener) {
event->widget = mParentWidget;
listener = mParentWidget->GetWidgetListener();
}
}
}
if (listener)
aStatus = listener->HandleEvent(event, mUseAttachedEvents);
return NS_OK;
}
bool nsChildView::DispatchWindowEvent(WidgetGUIEvent& event)
{
nsEventStatus status;
DispatchEvent(&event, status);
return ConvertStatus(status);
}
nsIWidget*
nsChildView::GetWidgetForListenerEvents()
{
// If there is no listener, use the parent popup's listener if that exists.
if (!mWidgetListener && mParentWidget &&
mParentWidget->WindowType() == eWindowType_popup) {
return mParentWidget;
}
return this;
}
void nsChildView::WillPaintWindow()
{
nsCOMPtr<nsIWidget> widget = GetWidgetForListenerEvents();
nsIWidgetListener* listener = widget->GetWidgetListener();
if (listener) {
listener->WillPaintWindow(widget);
}
}
bool nsChildView::PaintWindow(nsIntRegion aRegion)
{
nsCOMPtr<nsIWidget> widget = GetWidgetForListenerEvents();
nsIWidgetListener* listener = widget->GetWidgetListener();
if (!listener)
return false;
bool returnValue = false;
bool oldDispatchPaint = mIsDispatchPaint;
mIsDispatchPaint = true;
returnValue = listener->PaintWindow(widget, aRegion);
listener = widget->GetWidgetListener();
if (listener) {
listener->DidPaintWindow();
}
mIsDispatchPaint = oldDispatchPaint;
return returnValue;
}
#pragma mark -
void nsChildView::ReportMoveEvent()
{
NotifyWindowMoved(mBounds.x, mBounds.y);
}
void nsChildView::ReportSizeEvent()
{
if (mWidgetListener)
mWidgetListener->WindowResized(this, mBounds.width, mBounds.height);
}
#pragma mark -
LayoutDeviceIntPoint nsChildView::GetClientOffset()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NSPoint origin = [mView convertPoint:NSMakePoint(0, 0) toView:nil];
origin.y = [[mView window] frame].size.height - origin.y;
return LayoutDeviceIntPoint::FromUnknownPoint(CocoaPointsToDevPixels(origin));
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(LayoutDeviceIntPoint(0, 0));
}
// Return the offset between this child view and the screen.
// @return -- widget origin in device-pixel coords
LayoutDeviceIntPoint nsChildView::WidgetToScreenOffset()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NSPoint origin = NSMakePoint(0, 0);
// 1. First translate view origin point into window coords.
// The returned point is in bottom-left coordinates.
origin = [mView convertPoint:origin toView:nil];
// 2. We turn the window-coord rect's origin into screen (still bottom-left) coords.
origin = [[mView window] convertBaseToScreen:origin];
// 3. Since we're dealing in bottom-left coords, we need to make it top-left coords
// before we pass it back to Gecko.
FlipCocoaScreenCoordinate(origin);
// convert to device pixels
return LayoutDeviceIntPoint::FromUnknownPoint(CocoaPointsToDevPixels(origin));
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(LayoutDeviceIntPoint(0,0));
}
NS_IMETHODIMP nsChildView::CaptureRollupEvents(nsIRollupListener * aListener,
bool aDoCapture)
{
// this never gets called, only top-level windows can be rollup widgets
return NS_OK;
}
NS_IMETHODIMP nsChildView::SetTitle(const nsAString& title)
{
// child views don't have titles
return NS_OK;
}
NS_IMETHODIMP nsChildView::GetAttention(int32_t aCycleCount)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
[NSApp requestUserAttention:NSInformationalRequest];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
/* static */
bool nsChildView::DoHasPendingInputEvent()
{
return sLastInputEventCount != GetCurrentInputEventCount();
}
/* static */
uint32_t nsChildView::GetCurrentInputEventCount()
{
// Can't use kCGAnyInputEventType because that updates too rarely for us (and
// always in increments of 30+!) and because apparently it's sort of broken
// on Tiger. So just go ahead and query the counters we care about.
static const CGEventType eventTypes[] = {
kCGEventLeftMouseDown,
kCGEventLeftMouseUp,
kCGEventRightMouseDown,
kCGEventRightMouseUp,
kCGEventMouseMoved,
kCGEventLeftMouseDragged,
kCGEventRightMouseDragged,
kCGEventKeyDown,
kCGEventKeyUp,
kCGEventScrollWheel,
kCGEventTabletPointer,
kCGEventOtherMouseDown,
kCGEventOtherMouseUp,
kCGEventOtherMouseDragged
};
uint32_t eventCount = 0;
for (uint32_t i = 0; i < ArrayLength(eventTypes); ++i) {
eventCount +=
CGEventSourceCounterForEventType(kCGEventSourceStateCombinedSessionState,
eventTypes[i]);
}
return eventCount;
}
/* static */
void nsChildView::UpdateCurrentInputEventCount()
{
sLastInputEventCount = GetCurrentInputEventCount();
}
bool nsChildView::HasPendingInputEvent()
{
return DoHasPendingInputEvent();
}
#pragma mark -
nsresult
nsChildView::NotifyIMEInternal(const IMENotification& aIMENotification)
{
switch (aIMENotification.mMessage) {
case REQUEST_TO_COMMIT_COMPOSITION:
NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
mTextInputHandler->CommitIMEComposition();
return NS_OK;
case REQUEST_TO_CANCEL_COMPOSITION:
NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
mTextInputHandler->CancelIMEComposition();
return NS_OK;
case NOTIFY_IME_OF_FOCUS:
if (mTextInputHandler->IsFocused()) {
if (mInputContext.IsPasswordEditor()) {
TextInputHandler::EnableSecureEventInput();
} else {
TextInputHandler::EnsureSecureEventInputDisabled();
}
}
NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
mTextInputHandler->OnFocusChangeInGecko(true);
return NS_OK;
case NOTIFY_IME_OF_BLUR:
NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
mTextInputHandler->OnFocusChangeInGecko(false);
return NS_OK;
case NOTIFY_IME_OF_SELECTION_CHANGE:
NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
mTextInputHandler->OnSelectionChange(aIMENotification);
return NS_OK;
default:
return NS_ERROR_NOT_IMPLEMENTED;
}
}
NS_IMETHODIMP
nsChildView::StartPluginIME(const mozilla::WidgetKeyboardEvent& aKeyboardEvent,
int32_t aPanelX, int32_t aPanelY,
nsString& aCommitted)
{
NS_ENSURE_TRUE(mView, NS_ERROR_NOT_AVAILABLE);
ComplexTextInputPanel* ctiPanel =
ComplexTextInputPanel::GetSharedComplexTextInputPanel();
ctiPanel->PlacePanel(aPanelX, aPanelY);
// We deliberately don't use TextInputHandler::GetCurrentKeyEvent() to
// obtain the NSEvent* we pass to InterpretKeyEvent(). This works fine in
// non-e10s mode. But in e10s mode TextInputHandler::HandleKeyDownEvent()
// has already returned, so the relevant KeyEventState* (and its NSEvent*)
// is already out of scope. Furthermore we don't *need* to use it.
// StartPluginIME() is only ever called to start a new IME session when none
// currently exists. So nested IME should never reach here, and so it should
// be fine to use the last key-down event received by -[ChildView keyDown:]
// (as we currently do).
ctiPanel->InterpretKeyEvent([(ChildView*)mView lastKeyDownEvent], aCommitted);
return NS_OK;
}
NS_IMETHODIMP
nsChildView::SetPluginFocused(bool& aFocused)
{
if (aFocused == mPluginFocused) {
return NS_OK;
}
if (!aFocused) {
ComplexTextInputPanel* ctiPanel =
ComplexTextInputPanel::GetSharedComplexTextInputPanel();
if (ctiPanel) {
ctiPanel->CancelComposition();
}
}
mPluginFocused = aFocused;
return NS_OK;
}
NS_IMETHODIMP_(void)
nsChildView::SetInputContext(const InputContext& aContext,
const InputContextAction& aAction)
{
NS_ENSURE_TRUE_VOID(mTextInputHandler);
if (mTextInputHandler->IsFocused()) {
if (aContext.IsPasswordEditor()) {
TextInputHandler::EnableSecureEventInput();
} else {
TextInputHandler::EnsureSecureEventInputDisabled();
}
}
mInputContext = aContext;
switch (aContext.mIMEState.mEnabled) {
case IMEState::ENABLED:
case IMEState::PLUGIN:
mTextInputHandler->SetASCIICapableOnly(false);
mTextInputHandler->EnableIME(true);
if (mInputContext.mIMEState.mOpen != IMEState::DONT_CHANGE_OPEN_STATE) {
mTextInputHandler->SetIMEOpenState(
mInputContext.mIMEState.mOpen == IMEState::OPEN);
}
break;
case IMEState::DISABLED:
mTextInputHandler->SetASCIICapableOnly(false);
mTextInputHandler->EnableIME(false);
break;
case IMEState::PASSWORD:
mTextInputHandler->SetASCIICapableOnly(true);
mTextInputHandler->EnableIME(false);
break;
default:
NS_ERROR("not implemented!");
}
}
NS_IMETHODIMP_(InputContext)
nsChildView::GetInputContext()
{
switch (mInputContext.mIMEState.mEnabled) {
case IMEState::ENABLED:
case IMEState::PLUGIN:
if (mTextInputHandler) {
mInputContext.mIMEState.mOpen =
mTextInputHandler->IsIMEOpened() ? IMEState::OPEN : IMEState::CLOSED;
break;
}
// If mTextInputHandler is null, set CLOSED instead...
MOZ_FALLTHROUGH;
default:
mInputContext.mIMEState.mOpen = IMEState::CLOSED;
break;
}
mInputContext.mNativeIMEContext = [mView inputContext];
// If input context isn't available on this widget, we should set |this|
// instead of nullptr since nullptr means that the platform has only one
// context per process.
if (!mInputContext.mNativeIMEContext) {
mInputContext.mNativeIMEContext = this;
}
return mInputContext;
}
NS_IMETHODIMP
nsChildView::AttachNativeKeyEvent(mozilla::WidgetKeyboardEvent& aEvent)
{
NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
return mTextInputHandler->AttachNativeKeyEvent(aEvent);
}
bool
nsChildView::ExecuteNativeKeyBindingRemapped(NativeKeyBindingsType aType,
const WidgetKeyboardEvent& aEvent,
DoCommandCallback aCallback,
void* aCallbackData,
uint32_t aGeckoKeyCode,
uint32_t aCocoaKeyCode)
{
NSEvent *originalEvent = reinterpret_cast<NSEvent*>(aEvent.mNativeKeyEvent);
WidgetKeyboardEvent modifiedEvent(aEvent);
modifiedEvent.keyCode = aGeckoKeyCode;
unichar ch = nsCocoaUtils::ConvertGeckoKeyCodeToMacCharCode(aGeckoKeyCode);
NSString *chars =
[[[NSString alloc] initWithCharacters:&ch length:1] autorelease];
modifiedEvent.mNativeKeyEvent =
[NSEvent keyEventWithType:[originalEvent type]
location:[originalEvent locationInWindow]
modifierFlags:[originalEvent modifierFlags]
timestamp:[originalEvent timestamp]
windowNumber:[originalEvent windowNumber]
context:[originalEvent context]
characters:chars
charactersIgnoringModifiers:chars
isARepeat:[originalEvent isARepeat]
keyCode:aCocoaKeyCode];
NativeKeyBindings* keyBindings = NativeKeyBindings::GetInstance(aType);
return keyBindings->Execute(modifiedEvent, aCallback, aCallbackData);
}
NS_IMETHODIMP_(bool)
nsChildView::ExecuteNativeKeyBinding(NativeKeyBindingsType aType,
const WidgetKeyboardEvent& aEvent,
DoCommandCallback aCallback,
void* aCallbackData)
{
// If the key is a cursor-movement arrow, and the current selection has
// vertical writing-mode, we'll remap so that the movement command
// generated (in terms of characters/lines) will be appropriate for
// the physical direction of the arrow.
if (aEvent.keyCode >= nsIDOMKeyEvent::DOM_VK_LEFT &&
aEvent.keyCode <= nsIDOMKeyEvent::DOM_VK_DOWN) {
WidgetQueryContentEvent query(true, eQuerySelectedText, this);
DispatchWindowEvent(query);
if (query.mSucceeded && query.mReply.mWritingMode.IsVertical()) {
uint32_t geckoKey = 0;
uint32_t cocoaKey = 0;
switch (aEvent.keyCode) {
case nsIDOMKeyEvent::DOM_VK_LEFT:
if (query.mReply.mWritingMode.IsVerticalLR()) {
geckoKey = nsIDOMKeyEvent::DOM_VK_UP;
cocoaKey = kVK_UpArrow;
} else {
geckoKey = nsIDOMKeyEvent::DOM_VK_DOWN;
cocoaKey = kVK_DownArrow;
}
break;
case nsIDOMKeyEvent::DOM_VK_RIGHT:
if (query.mReply.mWritingMode.IsVerticalLR()) {
geckoKey = nsIDOMKeyEvent::DOM_VK_DOWN;
cocoaKey = kVK_DownArrow;
} else {
geckoKey = nsIDOMKeyEvent::DOM_VK_UP;
cocoaKey = kVK_UpArrow;
}
break;
case nsIDOMKeyEvent::DOM_VK_UP:
geckoKey = nsIDOMKeyEvent::DOM_VK_LEFT;
cocoaKey = kVK_LeftArrow;
break;
case nsIDOMKeyEvent::DOM_VK_DOWN:
geckoKey = nsIDOMKeyEvent::DOM_VK_RIGHT;
cocoaKey = kVK_RightArrow;
break;
}
return ExecuteNativeKeyBindingRemapped(aType, aEvent, aCallback,
aCallbackData,
geckoKey, cocoaKey);
}
}
NativeKeyBindings* keyBindings = NativeKeyBindings::GetInstance(aType);
return keyBindings->Execute(aEvent, aCallback, aCallbackData);
}
nsIMEUpdatePreference
nsChildView::GetIMEUpdatePreference()
{
// While a plugin has focus, IMEInputHandler doesn't need any notifications.
if (mInputContext.mIMEState.mEnabled == IMEState::PLUGIN) {
return nsIMEUpdatePreference();
}
return nsIMEUpdatePreference(nsIMEUpdatePreference::NOTIFY_SELECTION_CHANGE);
}
NSView<mozView>* nsChildView::GetEditorView()
{
NSView<mozView>* editorView = mView;
// We need to get editor's view. E.g., when the focus is in the bookmark
// dialog, the view is <panel> element of the dialog. At this time, the key
// events are processed the parent window's view that has native focus.
WidgetQueryContentEvent textContent(true, eQueryTextContent, this);
textContent.InitForQueryTextContent(0, 0);
DispatchWindowEvent(textContent);
if (textContent.mSucceeded && textContent.mReply.mFocusedWidget) {
NSView<mozView>* view = static_cast<NSView<mozView>*>(
textContent.mReply.mFocusedWidget->GetNativeData(NS_NATIVE_WIDGET));
if (view)
editorView = view;
}
return editorView;
}
#pragma mark -
void
nsChildView::CreateCompositor()
{
nsBaseWidget::CreateCompositor();
if (mCompositorChild) {
[(ChildView *)mView setUsingOMTCompositor:true];
}
}
void
nsChildView::ConfigureAPZCTreeManager()
{
nsBaseWidget::ConfigureAPZCTreeManager();
if (gfxPrefs::AsyncPanZoomSeparateEventThread()) {
if (gNumberOfWidgetsNeedingEventThread == 0) {
[EventThreadRunner start];
}
gNumberOfWidgetsNeedingEventThread++;
}
}
void
nsChildView::ConfigureAPZControllerThread()
{
if (gfxPrefs::AsyncPanZoomSeparateEventThread()) {
// The EventThreadRunner is the controller thread, but it doesn't
// have a MessageLoop.
APZThreadUtils::SetControllerThread(nullptr);
} else {
nsBaseWidget::ConfigureAPZControllerThread();
}
}
LayoutDeviceIntRect
nsChildView::RectContainingTitlebarControls()
{
// Start with a thin strip at the top of the window for the highlight line.
NSRect rect = NSMakeRect(0, 0, [mView bounds].size.width,
[(ChildView*)mView cornerRadius]);
// Add the rects of the titlebar controls.
for (id view in [(BaseWindow*)[mView window] titlebarControls]) {
rect = NSUnionRect(rect, [mView convertRect:[view bounds] fromView:view]);
}
return CocoaPointsToDevPixels(rect);
}
void
nsChildView::PrepareWindowEffects()
{
MutexAutoLock lock(mEffectsLock);
mShowsResizeIndicator = ShowsResizeIndicator(&mResizeIndicatorRect);
mHasRoundedBottomCorners = [(ChildView*)mView hasRoundedBottomCorners];
CGFloat cornerRadius = [(ChildView*)mView cornerRadius];
mDevPixelCornerRadius = cornerRadius * BackingScaleFactor();
mIsCoveringTitlebar = [(ChildView*)mView isCoveringTitlebar];
NSInteger styleMask = [[mView window] styleMask];
mIsFullscreen = (styleMask & NSFullScreenWindowMask) || !(styleMask & NSTitledWindowMask);
if (mIsCoveringTitlebar) {
mTitlebarRect = RectContainingTitlebarControls();
UpdateTitlebarCGContext();
}
}
void
nsChildView::CleanupWindowEffects()
{
mResizerImage = nullptr;
mCornerMaskImage = nullptr;
mTitlebarImage = nullptr;
}
bool
nsChildView::PreRender(LayerManagerComposite* aManager)
{
nsAutoPtr<GLManager> manager(GLManager::CreateGLManager(aManager));
if (!manager) {
return true;
}
// The lock makes sure that we don't attempt to tear down the view while
// compositing. That would make us unable to call postRender on it when the
// composition is done, thus keeping the GL context locked forever.
mViewTearDownLock.Lock();
NSOpenGLContext *glContext = GLContextCGL::Cast(manager->gl())->GetNSOpenGLContext();
if (![(ChildView*)mView preRender:glContext]) {
mViewTearDownLock.Unlock();
return false;
}
return true;
}
void
nsChildView::PostRender(LayerManagerComposite* aManager)
{
nsAutoPtr<GLManager> manager(GLManager::CreateGLManager(aManager));
if (!manager) {
return;
}
NSOpenGLContext *glContext = GLContextCGL::Cast(manager->gl())->GetNSOpenGLContext();
[(ChildView*)mView postRender:glContext];
mViewTearDownLock.Unlock();
}
void
nsChildView::DrawWindowOverlay(LayerManagerComposite* aManager,
LayoutDeviceIntRect aRect)
{
nsAutoPtr<GLManager> manager(GLManager::CreateGLManager(aManager));
if (manager) {
DrawWindowOverlay(manager, aRect);
}
}
void
nsChildView::DrawWindowOverlay(GLManager* aManager, LayoutDeviceIntRect aRect)
{
GLContext* gl = aManager->gl();
ScopedGLState scopedScissorTestState(gl, LOCAL_GL_SCISSOR_TEST, false);
MaybeDrawTitlebar(aManager);
MaybeDrawResizeIndicator(aManager);
MaybeDrawRoundedCorners(aManager, aRect);
}
static void
ClearRegion(gfx::DrawTarget *aDT, LayoutDeviceIntRegion aRegion)
{
gfxUtils::ClipToRegion(aDT, aRegion.ToUnknownRegion());
aDT->ClearRect(gfx::Rect(0, 0, aDT->GetSize().width, aDT->GetSize().height));
aDT->PopClip();
}
static void
DrawResizer(CGContextRef aCtx)
{
CGContextSetShouldAntialias(aCtx, false);
CGPoint points[6];
points[0] = CGPointMake(13.0f, 4.0f);
points[1] = CGPointMake(3.0f, 14.0f);
points[2] = CGPointMake(13.0f, 8.0f);
points[3] = CGPointMake(7.0f, 14.0f);
points[4] = CGPointMake(13.0f, 12.0f);
points[5] = CGPointMake(11.0f, 14.0f);
CGContextSetRGBStrokeColor(aCtx, 0.00f, 0.00f, 0.00f, 0.15f);
CGContextStrokeLineSegments(aCtx, points, 6);
points[0] = CGPointMake(13.0f, 5.0f);
points[1] = CGPointMake(4.0f, 14.0f);
points[2] = CGPointMake(13.0f, 9.0f);
points[3] = CGPointMake(8.0f, 14.0f);
points[4] = CGPointMake(13.0f, 13.0f);
points[5] = CGPointMake(12.0f, 14.0f);
CGContextSetRGBStrokeColor(aCtx, 0.13f, 0.13f, 0.13f, 0.54f);
CGContextStrokeLineSegments(aCtx, points, 6);
points[0] = CGPointMake(13.0f, 6.0f);
points[1] = CGPointMake(5.0f, 14.0f);
points[2] = CGPointMake(13.0f, 10.0f);
points[3] = CGPointMake(9.0f, 14.0f);
points[5] = CGPointMake(13.0f, 13.9f);
points[4] = CGPointMake(13.0f, 14.0f);
CGContextSetRGBStrokeColor(aCtx, 0.84f, 0.84f, 0.84f, 0.55f);
CGContextStrokeLineSegments(aCtx, points, 6);
}
void
nsChildView::MaybeDrawResizeIndicator(GLManager* aManager)
{
MutexAutoLock lock(mEffectsLock);
if (!mShowsResizeIndicator) {
return;
}
if (!mResizerImage) {
mResizerImage = new RectTextureImage(aManager->gl());
}
LayoutDeviceIntSize size = mResizeIndicatorRect.Size();
mResizerImage->UpdateIfNeeded(size, LayoutDeviceIntRegion(), ^(gfx::DrawTarget* drawTarget, const LayoutDeviceIntRegion& updateRegion) {
ClearRegion(drawTarget, updateRegion);
gfx::BorrowedCGContext borrow(drawTarget);
DrawResizer(borrow.cg);
borrow.Finish();
});
mResizerImage->Draw(aManager, mResizeIndicatorRect.TopLeft());
}
// Draw the highlight line at the top of the titlebar.
// This function draws into the current NSGraphicsContext and assumes flippedness.
static void
DrawTitlebarHighlight(NSSize aWindowSize, CGFloat aRadius, CGFloat aDevicePixelWidth)
{
[NSGraphicsContext saveGraphicsState];
// Set up the clip path. We start with the outer rectangle and cut out a
// slightly smaller inner rectangle with rounded corners.
// The outer corners of the resulting path will be square, but they will be
// masked away in a later step.
NSBezierPath* path = [NSBezierPath bezierPath];
[path setWindingRule:NSEvenOddWindingRule];
NSRect pathRect = NSMakeRect(0, 0, aWindowSize.width, aRadius + 2);
[path appendBezierPathWithRect:pathRect];
pathRect = NSInsetRect(pathRect, aDevicePixelWidth, aDevicePixelWidth);
CGFloat innerRadius = aRadius - aDevicePixelWidth;
[path appendBezierPathWithRoundedRect:pathRect xRadius:innerRadius yRadius:innerRadius];
[path addClip];
// Now we fill the path with a subtle highlight gradient.
// We don't use NSGradient because it's 5x to 15x slower than the manual fill,
// as indicated by the performance test in bug 880620.
for (CGFloat y = 0; y < aRadius; y += aDevicePixelWidth) {
CGFloat t = y / aRadius;
[[NSColor colorWithDeviceWhite:1.0 alpha:0.4 * (1.0 - t)] set];
NSRectFillUsingOperation(NSMakeRect(0, y, aWindowSize.width, aDevicePixelWidth), NSCompositeSourceOver);
}
[NSGraphicsContext restoreGraphicsState];
}
static CGContextRef
CreateCGContext(const LayoutDeviceIntSize& aSize)
{
CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB();
CGContextRef ctx =
CGBitmapContextCreate(NULL,
aSize.width,
aSize.height,
8 /* bitsPerComponent */,
aSize.width * 4,
cs,
kCGBitmapByteOrder32Host | kCGImageAlphaPremultipliedFirst);
CGColorSpaceRelease(cs);
CGContextTranslateCTM(ctx, 0, aSize.height);
CGContextScaleCTM(ctx, 1, -1);
CGContextSetInterpolationQuality(ctx, kCGInterpolationLow);
return ctx;
}
// When this method is entered, mEffectsLock is already being held.
void
nsChildView::UpdateTitlebarCGContext()
{
if (mTitlebarRect.IsEmpty()) {
ReleaseTitlebarCGContext();
return;
}
NSRect titlebarRect = DevPixelsToCocoaPoints(mTitlebarRect);
NSRect dirtyRect = [mView convertRect:[(BaseWindow*)[mView window] getAndResetNativeDirtyRect] fromView:nil];
NSRect dirtyTitlebarRect = NSIntersectionRect(titlebarRect, dirtyRect);
LayoutDeviceIntSize texSize =
RectTextureImage::TextureSizeForSize(mTitlebarRect.Size());
if (!mTitlebarCGContext ||
CGBitmapContextGetWidth(mTitlebarCGContext) != size_t(texSize.width) ||
CGBitmapContextGetHeight(mTitlebarCGContext) != size_t(texSize.height)) {
dirtyTitlebarRect = titlebarRect;
ReleaseTitlebarCGContext();
mTitlebarCGContext = CreateCGContext(texSize);
}
if (NSIsEmptyRect(dirtyTitlebarRect)) {
return;
}
CGContextRef ctx = mTitlebarCGContext;
CGContextSaveGState(ctx);
double scale = BackingScaleFactor();
CGContextScaleCTM(ctx, scale, scale);
CGContextClipToRect(ctx, NSRectToCGRect(dirtyTitlebarRect));
CGContextClearRect(ctx, NSRectToCGRect(dirtyTitlebarRect));
NSGraphicsContext* oldContext = [NSGraphicsContext currentContext];
CGContextSaveGState(ctx);
BaseWindow* window = (BaseWindow*)[mView window];
NSView* frameView = [[window contentView] superview];
if (![frameView isFlipped]) {
CGContextTranslateCTM(ctx, 0, [frameView bounds].size.height);
CGContextScaleCTM(ctx, 1, -1);
}
NSGraphicsContext* context = [NSGraphicsContext graphicsContextWithGraphicsPort:ctx flipped:[frameView isFlipped]];
[NSGraphicsContext setCurrentContext:context];
// Draw the title string.
if ([window wantsTitleDrawn] && [frameView respondsToSelector:@selector(_drawTitleBar:)]) {
[frameView _drawTitleBar:[frameView bounds]];
}
// Draw the titlebar controls into the titlebar image.
for (id view in [window titlebarControls]) {
NSRect viewFrame = [view frame];
NSRect viewRect = [mView convertRect:viewFrame fromView:frameView];
if (!NSIntersectsRect(dirtyTitlebarRect, viewRect)) {
continue;
}
// All of the titlebar controls we're interested in are subclasses of
// NSButton.
if (![view isKindOfClass:[NSButton class]]) {
continue;
}
NSButton *button = (NSButton *) view;
id cellObject = [button cell];
if (![cellObject isKindOfClass:[NSCell class]]) {
continue;
}
NSCell *cell = (NSCell *) cellObject;
CGContextSaveGState(ctx);
CGContextTranslateCTM(ctx, viewFrame.origin.x, viewFrame.origin.y);
if ([context isFlipped] != [view isFlipped]) {
CGContextTranslateCTM(ctx, 0, viewFrame.size.height);
CGContextScaleCTM(ctx, 1, -1);
}
[NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:ctx flipped:[view isFlipped]]];
if ([window useBrightTitlebarForeground] && !nsCocoaFeatures::OnYosemiteOrLater() &&
view == [window standardWindowButton:NSWindowFullScreenButton]) {
// Make the fullscreen button visible on dark titlebar backgrounds by
// drawing it into a new transparency layer and turning it white.
CGRect r = NSRectToCGRect([view bounds]);
CGContextBeginTransparencyLayerWithRect(ctx, r, nullptr);
// Draw twice for double opacity.
[cell drawWithFrame:[button bounds] inView:button];
[cell drawWithFrame:[button bounds] inView:button];
// Make it white.
CGContextSetBlendMode(ctx, kCGBlendModeSourceIn);
CGContextSetRGBFillColor(ctx, 1, 1, 1, 1);
CGContextFillRect(ctx, r);
CGContextSetBlendMode(ctx, kCGBlendModeNormal);
CGContextEndTransparencyLayer(ctx);
} else {
[cell drawWithFrame:[button bounds] inView:button];
}
[NSGraphicsContext setCurrentContext:context];
CGContextRestoreGState(ctx);
}
CGContextRestoreGState(ctx);
DrawTitlebarHighlight([frameView bounds].size, [(ChildView*)mView cornerRadius],
DevPixelsToCocoaPoints(1));
[NSGraphicsContext setCurrentContext:oldContext];
CGContextRestoreGState(ctx);
mUpdatedTitlebarRegion.OrWith(CocoaPointsToDevPixels(dirtyTitlebarRect));
}
// This method draws an overlay in the top of the window which contains the
// titlebar controls (e.g. close, min, zoom, fullscreen) and the titlebar
// highlight effect.
// This is necessary because the real titlebar controls are covered by our
// OpenGL context. Note that in terms of the NSView hierarchy, our ChildView
// is actually below the titlebar controls - that's why hovering and clicking
// them works as expected - but their visual representation is only drawn into
// the normal window buffer, and the window buffer surface lies below the
// GLContext surface. In order to make the titlebar controls visible, we have
// to redraw them inside the OpenGL context surface.
void
nsChildView::MaybeDrawTitlebar(GLManager* aManager)
{
MutexAutoLock lock(mEffectsLock);
if (!mIsCoveringTitlebar || mIsFullscreen) {
return;
}
LayoutDeviceIntRegion updatedTitlebarRegion;
updatedTitlebarRegion.And(mUpdatedTitlebarRegion, mTitlebarRect);
mUpdatedTitlebarRegion.SetEmpty();
if (!mTitlebarImage) {
mTitlebarImage = new RectTextureImage(aManager->gl());
}
mTitlebarImage->UpdateFromCGContext(mTitlebarRect.Size(),
updatedTitlebarRegion,
mTitlebarCGContext);
mTitlebarImage->Draw(aManager, mTitlebarRect.TopLeft());
}
static void
DrawTopLeftCornerMask(CGContextRef aCtx, int aRadius)
{
CGContextSetRGBFillColor(aCtx, 1.0, 1.0, 1.0, 1.0);
CGContextFillEllipseInRect(aCtx, CGRectMake(0, 0, aRadius * 2, aRadius * 2));
}
void
nsChildView::MaybeDrawRoundedCorners(GLManager* aManager,
const LayoutDeviceIntRect& aRect)
{
MutexAutoLock lock(mEffectsLock);
if (!mCornerMaskImage) {
mCornerMaskImage = new RectTextureImage(aManager->gl());
}
LayoutDeviceIntSize size(mDevPixelCornerRadius, mDevPixelCornerRadius);
mCornerMaskImage->UpdateIfNeeded(size, LayoutDeviceIntRegion(), ^(gfx::DrawTarget* drawTarget, const LayoutDeviceIntRegion& updateRegion) {
ClearRegion(drawTarget, updateRegion);
RefPtr<gfx::PathBuilder> builder = drawTarget->CreatePathBuilder();
builder->Arc(gfx::Point(mDevPixelCornerRadius, mDevPixelCornerRadius), mDevPixelCornerRadius, 0, 2.0f * M_PI);
RefPtr<gfx::Path> path = builder->Finish();
drawTarget->Fill(path,
gfx::ColorPattern(gfx::Color(1.0, 1.0, 1.0, 1.0)),
gfx::DrawOptions(1.0f, gfx::CompositionOp::OP_SOURCE));
});
// Use operator destination in: multiply all 4 channels with source alpha.
aManager->gl()->fBlendFuncSeparate(LOCAL_GL_ZERO, LOCAL_GL_SRC_ALPHA,
LOCAL_GL_ZERO, LOCAL_GL_SRC_ALPHA);
Matrix4x4 flipX = Matrix4x4::Scaling(-1, 1, 1);
Matrix4x4 flipY = Matrix4x4::Scaling(1, -1, 1);
if (mIsCoveringTitlebar && !mIsFullscreen) {
// Mask the top corners.
mCornerMaskImage->Draw(aManager, aRect.TopLeft());
mCornerMaskImage->Draw(aManager, aRect.TopRight(), flipX);
}
if (mHasRoundedBottomCorners && !mIsFullscreen) {
// Mask the bottom corners.
mCornerMaskImage->Draw(aManager, aRect.BottomLeft(), flipY);
mCornerMaskImage->Draw(aManager, aRect.BottomRight(), flipY * flipX);
}
// Reset blend mode.
aManager->gl()->fBlendFuncSeparate(LOCAL_GL_ONE, LOCAL_GL_ONE_MINUS_SRC_ALPHA,
LOCAL_GL_ONE, LOCAL_GL_ONE);
}
static int32_t
FindTitlebarBottom(const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
int32_t aWindowWidth)
{
int32_t titlebarBottom = 0;
for (uint32_t i = 0; i < aThemeGeometries.Length(); ++i) {
const nsIWidget::ThemeGeometry& g = aThemeGeometries[i];
if ((g.mType == nsNativeThemeCocoa::eThemeGeometryTypeTitlebar) &&
g.mRect.X() <= 0 &&
g.mRect.XMost() >= aWindowWidth &&
g.mRect.Y() <= 0) {
titlebarBottom = std::max(titlebarBottom, g.mRect.YMost());
}
}
return titlebarBottom;
}
static int32_t
FindUnifiedToolbarBottom(const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
int32_t aWindowWidth, int32_t aTitlebarBottom)
{
int32_t unifiedToolbarBottom = aTitlebarBottom;
for (uint32_t i = 0; i < aThemeGeometries.Length(); ++i) {
const nsIWidget::ThemeGeometry& g = aThemeGeometries[i];
if ((g.mType == nsNativeThemeCocoa::eThemeGeometryTypeToolbar) &&
g.mRect.X() <= 0 &&
g.mRect.XMost() >= aWindowWidth &&
g.mRect.Y() <= aTitlebarBottom) {
unifiedToolbarBottom = std::max(unifiedToolbarBottom, g.mRect.YMost());
}
}
return unifiedToolbarBottom;
}
static LayoutDeviceIntRect
FindFirstRectOfType(const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
nsITheme::ThemeGeometryType aThemeGeometryType)
{
for (uint32_t i = 0; i < aThemeGeometries.Length(); ++i) {
const nsIWidget::ThemeGeometry& g = aThemeGeometries[i];
if (g.mType == aThemeGeometryType) {
return LayoutDeviceIntRect::FromUnknownRect(g.mRect);
}
}
return LayoutDeviceIntRect();
}
void
nsChildView::UpdateThemeGeometries(const nsTArray<ThemeGeometry>& aThemeGeometries)
{
if (![mView window])
return;
UpdateVibrancy(aThemeGeometries);
if (![[mView window] isKindOfClass:[ToolbarWindow class]])
return;
// Update unified toolbar height and sheet attachment position.
int32_t windowWidth = mBounds.width;
int32_t titlebarBottom = FindTitlebarBottom(aThemeGeometries, windowWidth);
int32_t unifiedToolbarBottom =
FindUnifiedToolbarBottom(aThemeGeometries, windowWidth, titlebarBottom);
int32_t toolboxBottom =
FindFirstRectOfType(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeToolbox).YMost();
ToolbarWindow* win = (ToolbarWindow*)[mView window];
bool drawsContentsIntoWindowFrame = [win drawsContentsIntoWindowFrame];
int32_t titlebarHeight = CocoaPointsToDevPixels([win titlebarHeight]);
int32_t contentOffset = drawsContentsIntoWindowFrame ? titlebarHeight : 0;
int32_t devUnifiedHeight = titlebarHeight + unifiedToolbarBottom - contentOffset;
[win setUnifiedToolbarHeight:DevPixelsToCocoaPoints(devUnifiedHeight)];
int32_t devSheetPosition = titlebarHeight + std::max(toolboxBottom, unifiedToolbarBottom) - contentOffset;
[win setSheetAttachmentPosition:DevPixelsToCocoaPoints(devSheetPosition)];
// Update titlebar control offsets.
LayoutDeviceIntRect windowButtonRect = FindFirstRectOfType(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeWindowButtons);
[win placeWindowButtons:[mView convertRect:DevPixelsToCocoaPoints(windowButtonRect) toView:nil]];
LayoutDeviceIntRect fullScreenButtonRect = FindFirstRectOfType(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeFullscreenButton);
[win placeFullScreenButton:[mView convertRect:DevPixelsToCocoaPoints(fullScreenButtonRect) toView:nil]];
}
static nsIntRegion
GatherThemeGeometryRegion(const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
nsITheme::ThemeGeometryType aThemeGeometryType)
{
nsIntRegion region;
for (size_t i = 0; i < aThemeGeometries.Length(); ++i) {
const nsIWidget::ThemeGeometry& g = aThemeGeometries[i];
if (g.mType == aThemeGeometryType) {
region.OrWith(g.mRect);
}
}
return region;
}
template<typename Region>
static void MakeRegionsNonOverlappingImpl(Region& aOutUnion) { }
template<typename Region, typename ... Regions>
static void MakeRegionsNonOverlappingImpl(Region& aOutUnion, Region& aFirst, Regions& ... aRest)
{
MakeRegionsNonOverlappingImpl(aOutUnion, aRest...);
aFirst.SubOut(aOutUnion);
aOutUnion.OrWith(aFirst);
}
// Subtracts parts from regions in such a way that they don't have any overlap.
// Each region in the argument list will have the union of all the regions
// *following* it subtracted from itself. In other words, the arguments are
// sorted low priority to high priority.
template<typename Region, typename ... Regions>
static void MakeRegionsNonOverlapping(Region& aFirst, Regions& ... aRest)
{
Region unionOfAll;
MakeRegionsNonOverlappingImpl(unionOfAll, aFirst, aRest...);
}
void
nsChildView::UpdateVibrancy(const nsTArray<ThemeGeometry>& aThemeGeometries)
{
if (!VibrancyManager::SystemSupportsVibrancy()) {
return;
}
nsIntRegion sheetRegion =
GatherThemeGeometryRegion(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeSheet);
nsIntRegion vibrantLightRegion =
GatherThemeGeometryRegion(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeVibrancyLight);
nsIntRegion vibrantDarkRegion =
GatherThemeGeometryRegion(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeVibrancyDark);
nsIntRegion menuRegion =
GatherThemeGeometryRegion(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeMenu);
nsIntRegion tooltipRegion =
GatherThemeGeometryRegion(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeTooltip);
nsIntRegion highlightedMenuItemRegion =
GatherThemeGeometryRegion(aThemeGeometries, nsNativeThemeCocoa::eThemeGeometryTypeHighlightedMenuItem);
MakeRegionsNonOverlapping(sheetRegion, vibrantLightRegion, vibrantDarkRegion,
menuRegion, tooltipRegion, highlightedMenuItemRegion);
auto& vm = EnsureVibrancyManager();
vm.UpdateVibrantRegion(VibrancyType::LIGHT, vibrantLightRegion);
vm.UpdateVibrantRegion(VibrancyType::TOOLTIP, tooltipRegion);
vm.UpdateVibrantRegion(VibrancyType::MENU, menuRegion);
vm.UpdateVibrantRegion(VibrancyType::HIGHLIGHTED_MENUITEM, highlightedMenuItemRegion);
vm.UpdateVibrantRegion(VibrancyType::SHEET, sheetRegion);
vm.UpdateVibrantRegion(VibrancyType::DARK, vibrantDarkRegion);
}
void
nsChildView::ClearVibrantAreas()
{
if (VibrancyManager::SystemSupportsVibrancy()) {
EnsureVibrancyManager().ClearVibrantAreas();
}
}
static VibrancyType
ThemeGeometryTypeToVibrancyType(nsITheme::ThemeGeometryType aThemeGeometryType)
{
switch (aThemeGeometryType) {
case nsNativeThemeCocoa::eThemeGeometryTypeVibrancyLight:
return VibrancyType::LIGHT;
case nsNativeThemeCocoa::eThemeGeometryTypeVibrancyDark:
return VibrancyType::DARK;
case nsNativeThemeCocoa::eThemeGeometryTypeTooltip:
return VibrancyType::TOOLTIP;
case nsNativeThemeCocoa::eThemeGeometryTypeMenu:
return VibrancyType::MENU;
case nsNativeThemeCocoa::eThemeGeometryTypeHighlightedMenuItem:
return VibrancyType::HIGHLIGHTED_MENUITEM;
case nsNativeThemeCocoa::eThemeGeometryTypeSheet:
return VibrancyType::SHEET;
default:
MOZ_CRASH();
}
}
NSColor*
nsChildView::VibrancyFillColorForThemeGeometryType(nsITheme::ThemeGeometryType aThemeGeometryType)
{
if (VibrancyManager::SystemSupportsVibrancy()) {
return EnsureVibrancyManager().VibrancyFillColorForType(
ThemeGeometryTypeToVibrancyType(aThemeGeometryType));
}
return [NSColor whiteColor];
}
NSColor*
nsChildView::VibrancyFontSmoothingBackgroundColorForThemeGeometryType(nsITheme::ThemeGeometryType aThemeGeometryType)
{
if (VibrancyManager::SystemSupportsVibrancy()) {
return EnsureVibrancyManager().VibrancyFontSmoothingBackgroundColorForType(
ThemeGeometryTypeToVibrancyType(aThemeGeometryType));
}
return [NSColor clearColor];
}
mozilla::VibrancyManager&
nsChildView::EnsureVibrancyManager()
{
MOZ_ASSERT(mView, "Only call this once we have a view!");
if (!mVibrancyManager) {
mVibrancyManager = MakeUnique<VibrancyManager>(*this, mView);
}
return *mVibrancyManager;
}
nsChildView::SwipeInfo
nsChildView::SendMayStartSwipe(const mozilla::PanGestureInput& aSwipeStartEvent)
{
nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
uint32_t direction = (aSwipeStartEvent.mPanDisplacement.x > 0.0)
? (uint32_t)nsIDOMSimpleGestureEvent::DIRECTION_RIGHT
: (uint32_t)nsIDOMSimpleGestureEvent::DIRECTION_LEFT;
// We're ready to start the animation. Tell Gecko about it, and at the same
// time ask it if it really wants to start an animation for this event.
// This event also reports back the directions that we can swipe in.
LayoutDeviceIntPoint position =
RoundedToInt(aSwipeStartEvent.mPanStartPoint * ScreenToLayoutDeviceScale(1));
WidgetSimpleGestureEvent geckoEvent =
SwipeTracker::CreateSwipeGestureEvent(eSwipeGestureMayStart, this,
position);
geckoEvent.direction = direction;
geckoEvent.delta = 0.0;
geckoEvent.allowedDirections = 0;
bool shouldStartSwipe = DispatchWindowEvent(geckoEvent); // event cancelled == swipe should start
SwipeInfo result = { shouldStartSwipe, geckoEvent.allowedDirections };
return result;
}
void
nsChildView::TrackScrollEventAsSwipe(const mozilla::PanGestureInput& aSwipeStartEvent,
uint32_t aAllowedDirections)
{
// If a swipe is currently being tracked kill it -- it's been interrupted
// by another gesture event.
if (mSwipeTracker) {
mSwipeTracker->CancelSwipe();
mSwipeTracker->Destroy();
mSwipeTracker = nullptr;
}
uint32_t direction = (aSwipeStartEvent.mPanDisplacement.x > 0.0)
? (uint32_t)nsIDOMSimpleGestureEvent::DIRECTION_RIGHT
: (uint32_t)nsIDOMSimpleGestureEvent::DIRECTION_LEFT;
mSwipeTracker = new SwipeTracker(*this, aSwipeStartEvent,
aAllowedDirections, direction);
}
void
nsChildView::SwipeFinished()
{
mSwipeTracker = nullptr;
}
already_AddRefed<gfx::DrawTarget>
nsChildView::StartRemoteDrawing()
{
// should have created the GLPresenter in InitCompositor.
MOZ_ASSERT(mGLPresenter);
if (!mGLPresenter) {
mGLPresenter = GLPresenter::CreateForWindow(this);
if (!mGLPresenter) {
return nullptr;
}
}
LayoutDeviceIntRegion dirtyRegion(LayoutDeviceIntRect::FromUnknownRect(mBounds));
LayoutDeviceIntSize renderSize =
LayoutDeviceIntSize::FromUnknownSize(mBounds.Size());
if (!mBasicCompositorImage) {
mBasicCompositorImage = new RectTextureImage(mGLPresenter->gl());
}
RefPtr<gfx::DrawTarget> drawTarget =
mBasicCompositorImage->BeginUpdate(renderSize, dirtyRegion);
if (!drawTarget) {
// Composite unchanged textures.
DoRemoteComposition(LayoutDeviceIntRect::FromUnknownRect(mBounds));
return nullptr;
}
return drawTarget.forget();
}
void
nsChildView::EndRemoteDrawing()
{
mBasicCompositorImage->EndUpdate(true);
DoRemoteComposition(LayoutDeviceIntRect::FromUnknownRect(mBounds));
}
void
nsChildView::CleanupRemoteDrawing()
{
mBasicCompositorImage = nullptr;
mCornerMaskImage = nullptr;
mResizerImage = nullptr;
mTitlebarImage = nullptr;
mGLPresenter = nullptr;
}
bool
nsChildView::InitCompositor(Compositor* aCompositor)
{
if (aCompositor->GetBackendType() == LayersBackend::LAYERS_BASIC) {
if (!mGLPresenter) {
mGLPresenter = GLPresenter::CreateForWindow(this);
}
return !!mGLPresenter;
}
return true;
}
void
nsChildView::DoRemoteComposition(const LayoutDeviceIntRect& aRenderRect)
{
if (![(ChildView*)mView preRender:mGLPresenter->GetNSOpenGLContext()]) {
return;
}
mGLPresenter->BeginFrame(aRenderRect.Size());
// Draw the result from the basic compositor.
mBasicCompositorImage->Draw(mGLPresenter, LayoutDeviceIntPoint(0, 0));
// DrawWindowOverlay doesn't do anything for non-GL, so it didn't paint
// anything during the basic compositor transaction. Draw the overlay now.
DrawWindowOverlay(mGLPresenter, aRenderRect);
mGLPresenter->EndFrame();
[(ChildView*)mView postRender:mGLPresenter->GetNSOpenGLContext()];
}
void
nsChildView::UpdateWindowDraggingRegion(const nsIntRegion& aRegion)
{
LayoutDeviceIntRegion region =
LayoutDeviceIntRegion::FromUnknownRegion(aRegion);
if (mDraggableRegion != region) {
mDraggableRegion = region;
[(ChildView*)mView updateWindowDraggableState];
}
}
void
nsChildView::ReportSwipeStarted(uint64_t aInputBlockId,
bool aStartSwipe)
{
if (mSwipeEventQueue && mSwipeEventQueue->inputBlockId == aInputBlockId) {
if (aStartSwipe) {
PanGestureInput& startEvent = mSwipeEventQueue->queuedEvents[0];
TrackScrollEventAsSwipe(startEvent, mSwipeEventQueue->allowedDirections);
for (size_t i = 1; i < mSwipeEventQueue->queuedEvents.Length(); i++) {
mSwipeTracker->ProcessEvent(mSwipeEventQueue->queuedEvents[i]);
}
}
mSwipeEventQueue = nullptr;
}
}
void
nsChildView::DispatchAPZWheelInputEvent(InputData& aEvent, bool aCanTriggerSwipe)
{
if (mSwipeTracker && aEvent.mInputType == PANGESTURE_INPUT) {
// Give the swipe tracker a first pass at the event. If a new pan gesture
// has been started since the beginning of the swipe, the swipe tracker
// will know to ignore the event.
nsEventStatus status = mSwipeTracker->ProcessEvent(aEvent.AsPanGestureInput());
if (status == nsEventStatus_eConsumeNoDefault) {
return;
}
}
WidgetWheelEvent event(true, eWheel, this);
if (mAPZC) {
uint64_t inputBlockId = 0;
ScrollableLayerGuid guid;
nsEventStatus result = mAPZC->ReceiveInputEvent(aEvent, &guid, &inputBlockId);
if (result == nsEventStatus_eConsumeNoDefault) {
return;
}
switch(aEvent.mInputType) {
case PANGESTURE_INPUT: {
PanGestureInput& panInput = aEvent.AsPanGestureInput();
event = panInput.ToWidgetWheelEvent(this);
if (aCanTriggerSwipe) {
SwipeInfo swipeInfo = SendMayStartSwipe(panInput);
event.mCanTriggerSwipe = swipeInfo.wantsSwipe;
if (swipeInfo.wantsSwipe) {
if (result == nsEventStatus_eIgnore) {
// APZ has determined and that scrolling horizontally in the
// requested direction is impossible, so it didn't do any
// scrolling for the event.
// We know now that MayStartSwipe wants a swipe, so we can start
// the swipe now.
TrackScrollEventAsSwipe(panInput, swipeInfo.allowedDirections);
} else {
// We don't know whether this event can start a swipe, so we need
// to queue up events and wait for a call to ReportSwipeStarted.
// APZ might already have started scrolling in response to the
// event if it knew that it's the right thing to do. In that case
// we'll still get a call to ReportSwipeStarted, and we will
// discard the queued events at that point.
mSwipeEventQueue = MakeUnique<SwipeEventQueue>(swipeInfo.allowedDirections,
inputBlockId);
}
}
}
if (mSwipeEventQueue && mSwipeEventQueue->inputBlockId == inputBlockId) {
mSwipeEventQueue->queuedEvents.AppendElement(panInput);
}
break;
}
case SCROLLWHEEL_INPUT: {
event = aEvent.AsScrollWheelInput().ToWidgetWheelEvent(this);
break;
};
default:
MOZ_CRASH("unsupported event type");
return;
}
if (event.mMessage == eWheel && (event.deltaX != 0 || event.deltaY != 0)) {
ProcessUntransformedAPZEvent(&event, guid, inputBlockId, result);
}
return;
}
nsEventStatus status;
switch(aEvent.mInputType) {
case PANGESTURE_INPUT: {
PanGestureInput panInput = aEvent.AsPanGestureInput();
if (panInput.mType == PanGestureInput::PANGESTURE_MAYSTART ||
panInput.mType == PanGestureInput::PANGESTURE_START) {
mCurrentPanGestureBelongsToSwipe = false;
}
if (mCurrentPanGestureBelongsToSwipe) {
// Ignore this event. It's a momentum event from a scroll gesture
// that was processed as a swipe, and the swipe animation has
// already finished (so mSwipeTracker is already null).
MOZ_ASSERT(panInput.IsMomentum(),
"If the fingers are still on the touchpad, we should still have a SwipeTracker, and it should have consumed this event.");
return;
}
event = panInput.ToWidgetWheelEvent(this);
if (aCanTriggerSwipe) {
SwipeInfo swipeInfo = SendMayStartSwipe(panInput);
event.mCanTriggerSwipe = swipeInfo.wantsSwipe;
DispatchEvent(&event, status);
if (event.TriggersSwipe()) {
TrackScrollEventAsSwipe(panInput, swipeInfo.allowedDirections);
mCurrentPanGestureBelongsToSwipe = true;
}
return;
}
break;
}
case SCROLLWHEEL_INPUT: {
event = aEvent.AsScrollWheelInput().ToWidgetWheelEvent(this);
break;
}
default:
MOZ_CRASH("unexpected event type");
return;
}
if (event.mMessage == eWheel && (event.deltaX != 0 || event.deltaY != 0)) {
DispatchEvent(&event, status);
}
}
#ifdef ACCESSIBILITY
already_AddRefed<a11y::Accessible>
nsChildView::GetDocumentAccessible()
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return nullptr;
if (mAccessible) {
RefPtr<a11y::Accessible> ret;
CallQueryReferent(mAccessible.get(),
static_cast<a11y::Accessible**>(getter_AddRefs(ret)));
return ret.forget();
}
// need to fetch the accessible anew, because it has gone away.
// cache the accessible in our weak ptr
RefPtr<a11y::Accessible> acc = GetRootAccessible();
mAccessible = do_GetWeakReference(acc.get());
return acc.forget();
}
#endif
// RectTextureImage implementation
RectTextureImage::~RectTextureImage()
{
if (mTexture) {
mGLContext->MakeCurrent();
mGLContext->fDeleteTextures(1, &mTexture);
mTexture = 0;
}
}
LayoutDeviceIntSize
RectTextureImage::TextureSizeForSize(const LayoutDeviceIntSize& aSize)
{
return LayoutDeviceIntSize(gfx::NextPowerOfTwo(aSize.width),
gfx::NextPowerOfTwo(aSize.height));
}
already_AddRefed<gfx::DrawTarget>
RectTextureImage::BeginUpdate(const LayoutDeviceIntSize& aNewSize,
const LayoutDeviceIntRegion& aDirtyRegion)
{
MOZ_ASSERT(!mInUpdate, "Beginning update during update!");
mUpdateRegion = aDirtyRegion;
if (aNewSize != mUsedSize) {
mUsedSize = aNewSize;
mUpdateRegion =
LayoutDeviceIntRect(LayoutDeviceIntPoint(0, 0), aNewSize);
}
if (mUpdateRegion.IsEmpty()) {
return nullptr;
}
LayoutDeviceIntSize neededBufferSize = TextureSizeForSize(mUsedSize);
if (!mUpdateDrawTarget || mBufferSize != neededBufferSize) {
gfx::IntSize size(neededBufferSize.width, neededBufferSize.height);
mUpdateDrawTarget =
gfx::Factory::CreateDrawTarget(gfx::BackendType::COREGRAPHICS, size,
gfx::SurfaceFormat::B8G8R8A8);
mBufferSize = neededBufferSize;
}
mInUpdate = true;
RefPtr<gfx::DrawTarget> drawTarget = mUpdateDrawTarget;
return drawTarget.forget();
}
#define NSFoundationVersionWithProperStrideSupportForSubtextureUpload NSFoundationVersionNumber10_6_3
static bool
CanUploadSubtextures()
{
return NSFoundationVersionNumber >= NSFoundationVersionWithProperStrideSupportForSubtextureUpload;
}
void
RectTextureImage::EndUpdate(bool aKeepSurface)
{
MOZ_ASSERT(mInUpdate, "Ending update while not in update");
bool overwriteTexture = false;
LayoutDeviceIntRegion updateRegion = mUpdateRegion;
if (!mTexture || (mTextureSize != mBufferSize)) {
overwriteTexture = true;
mTextureSize = mBufferSize;
}
if (overwriteTexture || !CanUploadSubtextures()) {
updateRegion =
LayoutDeviceIntRect(LayoutDeviceIntPoint(0, 0), mTextureSize);
}
RefPtr<gfx::SourceSurface> snapshot = mUpdateDrawTarget->Snapshot();
RefPtr<gfx::DataSourceSurface> dataSnapshot = snapshot->GetDataSurface();
UploadSurfaceToTexture(mGLContext,
dataSnapshot,
updateRegion.ToUnknownRegion(),
mTexture,
overwriteTexture,
updateRegion.GetBounds().TopLeft().ToUnknownPoint(),
false,
LOCAL_GL_TEXTURE0,
LOCAL_GL_TEXTURE_RECTANGLE_ARB);
if (!aKeepSurface) {
mUpdateDrawTarget = nullptr;
}
mInUpdate = false;
}
void
RectTextureImage::UpdateFromCGContext(const LayoutDeviceIntSize& aNewSize,
const LayoutDeviceIntRegion& aDirtyRegion,
CGContextRef aCGContext)
{
gfx::IntSize size = gfx::IntSize(CGBitmapContextGetWidth(aCGContext),
CGBitmapContextGetHeight(aCGContext));
mBufferSize.SizeTo(size.width, size.height);
RefPtr<gfx::DrawTarget> dt = BeginUpdate(aNewSize, aDirtyRegion);
if (dt) {
gfx::Rect rect(0, 0, size.width, size.height);
gfxUtils::ClipToRegion(dt, GetUpdateRegion().ToUnknownRegion());
RefPtr<gfx::SourceSurface> sourceSurface =
dt->CreateSourceSurfaceFromData(static_cast<uint8_t *>(CGBitmapContextGetData(aCGContext)),
size,
CGBitmapContextGetBytesPerRow(aCGContext),
gfx::SurfaceFormat::B8G8R8A8);
dt->DrawSurface(sourceSurface, rect, rect,
gfx::DrawSurfaceOptions(),
gfx::DrawOptions(1.0, gfx::CompositionOp::OP_SOURCE));
dt->PopClip();
EndUpdate();
}
}
void
RectTextureImage::Draw(GLManager* aManager,
const LayoutDeviceIntPoint& aLocation,
const Matrix4x4& aTransform)
{
ShaderProgramOGL* program = aManager->GetProgram(LOCAL_GL_TEXTURE_RECTANGLE_ARB,
gfx::SurfaceFormat::R8G8B8A8);
aManager->gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
aManager->gl()->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, mTexture);
aManager->ActivateProgram(program);
program->SetProjectionMatrix(aManager->GetProjMatrix());
program->SetLayerTransform(Matrix4x4(aTransform).PostTranslate(aLocation.x, aLocation.y, 0));
program->SetTextureTransform(gfx::Matrix4x4());
program->SetRenderOffset(nsIntPoint(0, 0));
program->SetTexCoordMultiplier(mUsedSize.width, mUsedSize.height);
program->SetTextureUnit(0);
aManager->BindAndDrawQuad(program,
gfx::Rect(0.0, 0.0, mUsedSize.width, mUsedSize.height),
gfx::Rect(0.0, 0.0, 1.0f, 1.0f));
aManager->gl()->fBindTexture(LOCAL_GL_TEXTURE_RECTANGLE_ARB, 0);
}
// GLPresenter implementation
GLPresenter::GLPresenter(GLContext* aContext)
: mGLContext(aContext)
{
mGLContext->MakeCurrent();
ShaderConfigOGL config;
config.SetTextureTarget(LOCAL_GL_TEXTURE_RECTANGLE_ARB);
mRGBARectProgram = new ShaderProgramOGL(mGLContext,
ProgramProfileOGL::GetProfileFor(config));
// Create mQuadVBO.
mGLContext->fGenBuffers(1, &mQuadVBO);
mGLContext->fBindBuffer(LOCAL_GL_ARRAY_BUFFER, mQuadVBO);
// 1 quad, with the number of the quad (vertexID) encoded in w.
GLfloat vertices[] = {
0.0f, 0.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
1.0f, 1.0f, 0.0f, 0.0f,
};
HeapCopyOfStackArray<GLfloat> verticesOnHeap(vertices);
mGLContext->fBufferData(LOCAL_GL_ARRAY_BUFFER,
verticesOnHeap.ByteLength(),
verticesOnHeap.Data(),
LOCAL_GL_STATIC_DRAW);
mGLContext->fBindBuffer(LOCAL_GL_ARRAY_BUFFER, 0);
}
GLPresenter::~GLPresenter()
{
if (mQuadVBO) {
mGLContext->MakeCurrent();
mGLContext->fDeleteBuffers(1, &mQuadVBO);
mQuadVBO = 0;
}
}
void
GLPresenter::BindAndDrawQuad(ShaderProgramOGL *aProgram,
const gfx::Rect& aLayerRect,
const gfx::Rect& aTextureRect)
{
mGLContext->MakeCurrent();
gfx::Rect layerRects[4];
gfx::Rect textureRects[4];
layerRects[0] = aLayerRect;
textureRects[0] = aTextureRect;
aProgram->SetLayerRects(layerRects);
aProgram->SetTextureRects(textureRects);
const GLuint coordAttribIndex = 0;
mGLContext->fBindBuffer(LOCAL_GL_ARRAY_BUFFER, mQuadVBO);
mGLContext->fVertexAttribPointer(coordAttribIndex, 4,
LOCAL_GL_FLOAT, LOCAL_GL_FALSE, 0,
(GLvoid*)0);
mGLContext->fEnableVertexAttribArray(coordAttribIndex);
mGLContext->fDrawArrays(LOCAL_GL_TRIANGLES, 0, 6);
mGLContext->fDisableVertexAttribArray(coordAttribIndex);
}
void
GLPresenter::BeginFrame(LayoutDeviceIntSize aRenderSize)
{
mGLContext->MakeCurrent();
mGLContext->fViewport(0, 0, aRenderSize.width, aRenderSize.height);
// Matrix to transform (0, 0, width, height) to viewport space (-1.0, 1.0,
// 2, 2) and flip the contents.
gfx::Matrix viewMatrix = gfx::Matrix::Translation(-1.0, 1.0);
viewMatrix.PreScale(2.0f / float(aRenderSize.width),
2.0f / float(aRenderSize.height));
viewMatrix.PreScale(1.0f, -1.0f);
gfx::Matrix4x4 matrix3d = gfx::Matrix4x4::From2D(viewMatrix);
matrix3d._33 = 0.0f;
// set the projection matrix for the next time the program is activated
mProjMatrix = matrix3d;
// Default blend function implements "OVER"
mGLContext->fBlendFuncSeparate(LOCAL_GL_ONE, LOCAL_GL_ONE_MINUS_SRC_ALPHA,
LOCAL_GL_ONE, LOCAL_GL_ONE);
mGLContext->fEnable(LOCAL_GL_BLEND);
mGLContext->fClearColor(0.0, 0.0, 0.0, 0.0);
mGLContext->fClear(LOCAL_GL_COLOR_BUFFER_BIT | LOCAL_GL_DEPTH_BUFFER_BIT);
mGLContext->fEnable(LOCAL_GL_TEXTURE_RECTANGLE_ARB);
}
void
GLPresenter::EndFrame()
{
mGLContext->SwapBuffers();
mGLContext->fBindBuffer(LOCAL_GL_ARRAY_BUFFER, 0);
}
#pragma mark -
@implementation ChildView
// globalDragPboard is non-null during native drag sessions that did not originate
// in our native NSView (it is set in |draggingEntered:|). It is unset when the
// drag session ends for this view, either with the mouse exiting or when a drop
// occurs in this view.
NSPasteboard* globalDragPboard = nil;
// gLastDragView and gLastDragMouseDownEvent are used to communicate information
// to the drag service during drag invocation (starting a drag in from the view).
// gLastDragView is only non-null while mouseDragged is on the call stack.
NSView* gLastDragView = nil;
NSEvent* gLastDragMouseDownEvent = nil;
+ (void)initialize
{
static BOOL initialized = NO;
if (!initialized) {
// Inform the OS about the types of services (from the "Services" menu)
// that we can handle.
NSArray *sendTypes = [[NSArray alloc] initWithObjects:NSStringPboardType,NSHTMLPboardType,nil];
NSArray *returnTypes = [[NSArray alloc] initWithObjects:NSStringPboardType,NSHTMLPboardType,nil];
[NSApp registerServicesMenuSendTypes:sendTypes returnTypes:returnTypes];
[sendTypes release];
[returnTypes release];
initialized = YES;
}
}
+ (void)registerViewForDraggedTypes:(NSView*)aView
{
[aView registerForDraggedTypes:[NSArray arrayWithObjects:NSFilenamesPboardType,
NSStringPboardType,
NSHTMLPboardType,
NSURLPboardType,
NSFilesPromisePboardType,
kWildcardPboardType,
kCorePboardType_url,
kCorePboardType_urld,
kCorePboardType_urln,
nil]];
}
// initWithFrame:geckoChild:
- (id)initWithFrame:(NSRect)inFrame geckoChild:(nsChildView*)inChild
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
if ((self = [super initWithFrame:inFrame])) {
mGeckoChild = inChild;
mPendingDisplay = NO;
mBlockedLastMouseDown = NO;
mExpectingWheelStop = NO;
mLastMouseDownEvent = nil;
mLastKeyDownEvent = nil;
mClickThroughMouseDownEvent = nil;
mDragService = nullptr;
mGestureState = eGestureState_None;
mCumulativeMagnification = 0.0;
mCumulativeRotation = 0.0;
// We can't call forceRefreshOpenGL here because, in order to work around
// the bug, it seems we need to have a draw already happening. Therefore,
// we call it in drawRect:inContext:, when we know that a draw is in
// progress.
mDidForceRefreshOpenGL = NO;
[self setFocusRingType:NSFocusRingTypeNone];
#ifdef __LP64__
mCancelSwipeAnimation = nil;
#endif
mTopLeftCornerMask = NULL;
}
// register for things we'll take from other applications
[ChildView registerViewForDraggedTypes:self];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(systemMetricsChanged)
name:NSControlTintDidChangeNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(systemMetricsChanged)
name:NSSystemColorsDidChangeNotification
object:nil];
// TODO: replace the string with the constant once we build with the 10.7 SDK
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(scrollbarSystemMetricChanged)
name:@"NSPreferredScrollerStyleDidChangeNotification"
object:nil];
[[NSDistributedNotificationCenter defaultCenter] addObserver:self
selector:@selector(systemMetricsChanged)
name:@"AppleAquaScrollBarVariantChanged"
object:nil
suspensionBehavior:NSNotificationSuspensionBehaviorDeliverImmediately];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(_surfaceNeedsUpdate:)
name:NSViewGlobalFrameDidChangeNotification
object:self];
return self;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
// ComplexTextInputPanel's interpretKeyEvent hack won't work without this.
// It makes calls to +[NSTextInputContext currentContext], deep in system
// code, return the appropriate context.
- (NSTextInputContext *)inputContext
{
NSTextInputContext* pluginContext = NULL;
if (mGeckoChild && mGeckoChild->IsPluginFocused()) {
ComplexTextInputPanel* ctiPanel =
ComplexTextInputPanel::GetSharedComplexTextInputPanel();
if (ctiPanel) {
pluginContext = (NSTextInputContext*) ctiPanel->GetInputContext();
}
}
if (pluginContext) {
return pluginContext;
} else {
return [super inputContext];
}
}
- (void)installTextInputHandler:(TextInputHandler*)aHandler
{
mTextInputHandler = aHandler;
}
- (void)uninstallTextInputHandler
{
mTextInputHandler = nullptr;
}
// Work around bug 603134.
// OS X has a bug that causes new OpenGL windows to only paint once or twice,
// then stop painting altogether. By clearing the drawable from the GL context,
// and then resetting the view to ourselves, we convince OS X to start updating
// again.
// This can cause a flash in new windows - bug 631339 - but it's very hard to
// fix that while maintaining this workaround.
- (void)forceRefreshOpenGL
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[mGLContext clearDrawable];
[self updateGLContext];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)setGLContext:(NSOpenGLContext *)aGLContext
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
mGLContext = aGLContext;
[mGLContext retain];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (bool)preRender:(NSOpenGLContext *)aGLContext
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (![self window] ||
([[self window] isKindOfClass:[BaseWindow class]] &&
![(BaseWindow*)[self window] isVisibleOrBeingShown])) {
// Before the window is shown, our GL context's front FBO is not
// framebuffer complete, so we refuse to render.
return false;
}
if (!mGLContext) {
[self setGLContext:aGLContext];
[self updateGLContext];
}
CGLLockContext((CGLContextObj)[aGLContext CGLContextObj]);
return true;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
- (void)postRender:(NSOpenGLContext *)aGLContext
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
CGLUnlockContext((CGLContextObj)[aGLContext CGLContextObj]);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)dealloc
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[mGLContext release];
[mPendingDirtyRects release];
[mLastMouseDownEvent release];
[mLastKeyDownEvent release];
[mClickThroughMouseDownEvent release];
CGImageRelease(mTopLeftCornerMask);
ChildViewMouseTracker::OnDestroyView(self);
[[NSNotificationCenter defaultCenter] removeObserver:self];
[[NSDistributedNotificationCenter defaultCenter] removeObserver:self];
[super dealloc];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)widgetDestroyed
{
if (mTextInputHandler) {
mTextInputHandler->OnDestroyWidget(mGeckoChild);
mTextInputHandler = nullptr;
}
mGeckoChild = nullptr;
// Just in case we're destroyed abruptly and missed the draggingExited
// or performDragOperation message.
NS_IF_RELEASE(mDragService);
}
// mozView method, return our gecko child view widget. Note this does not AddRef.
- (nsIWidget*) widget
{
return static_cast<nsIWidget*>(mGeckoChild);
}
- (void)systemMetricsChanged
{
if (mGeckoChild)
mGeckoChild->NotifyThemeChanged();
}
- (void)scrollbarSystemMetricChanged
{
[self systemMetricsChanged];
if (mGeckoChild) {
nsIWidgetListener* listener = mGeckoChild->GetWidgetListener();
if (listener) {
nsIPresShell* presShell = listener->GetPresShell();
if (presShell) {
presShell->ReconstructFrames();
}
}
}
}
- (void)setNeedsPendingDisplay
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
mPendingFullDisplay = YES;
if (!mPendingDisplay) {
[self performSelector:@selector(processPendingRedraws) withObject:nil afterDelay:0];
mPendingDisplay = YES;
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)setNeedsPendingDisplayInRect:(NSRect)invalidRect
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mPendingDirtyRects)
mPendingDirtyRects = [[NSMutableArray alloc] initWithCapacity:1];
[mPendingDirtyRects addObject:[NSValue valueWithRect:invalidRect]];
if (!mPendingDisplay) {
[self performSelector:@selector(processPendingRedraws) withObject:nil afterDelay:0];
mPendingDisplay = YES;
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
// Clears the queue of any pending invalides
- (void)processPendingRedraws
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (mPendingFullDisplay) {
[self setNeedsDisplay:YES];
}
else if (mPendingDirtyRects) {
unsigned int count = [mPendingDirtyRects count];
for (unsigned int i = 0; i < count; ++i) {
[self setNeedsDisplayInRect:[[mPendingDirtyRects objectAtIndex:i] rectValue]];
}
}
mPendingFullDisplay = NO;
mPendingDisplay = NO;
[mPendingDirtyRects release];
mPendingDirtyRects = nil;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)setNeedsDisplayInRect:(NSRect)aRect
{
if (![self isUsingOpenGL]) {
[super setNeedsDisplayInRect:aRect];
return;
}
if ([[self window] isVisible] && [self isUsingMainThreadOpenGL]) {
// Draw without calling drawRect. This prevent us from
// needing to access the normal window buffer surface unnecessarily, so we
// waste less time synchronizing the two surfaces. (These synchronizations
// show up in a profiler as CGSDeviceLock / _CGSLockWindow /
// _CGSSynchronizeWindowBackingStore.) It also means that Cocoa doesn't
// have any potentially expensive invalid rect management for us.
if (!mWaitingForPaint) {
mWaitingForPaint = YES;
// Use NSRunLoopCommonModes instead of the default NSDefaultRunLoopMode
// so that the timer also fires while a native menu is open.
[self performSelector:@selector(drawUsingOpenGLCallback)
withObject:nil
afterDelay:0
inModes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
}
}
}
- (NSString*)description
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
return [NSString stringWithFormat:@"ChildView %p, gecko child %p, frame %@", self, mGeckoChild, NSStringFromRect([self frame])];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
// Make the origin of this view the topLeft corner (gecko origin) rather
// than the bottomLeft corner (standard cocoa origin).
- (BOOL)isFlipped
{
return YES;
}
- (BOOL)isOpaque
{
return [[self window] isOpaque];
}
- (void)sendFocusEvent:(EventMessage)eventMessage
{
if (!mGeckoChild)
return;
nsEventStatus status = nsEventStatus_eIgnore;
WidgetGUIEvent focusGuiEvent(true, eventMessage, mGeckoChild);
focusGuiEvent.time = PR_IntervalNow();
mGeckoChild->DispatchEvent(&focusGuiEvent, status);
}
// We accept key and mouse events, so don't keep passing them up the chain. Allow
// this to be a 'focused' widget for event dispatch.
- (BOOL)acceptsFirstResponder
{
return YES;
}
// Accept mouse down events on background windows
- (BOOL)acceptsFirstMouse:(NSEvent*)aEvent
{
if (![[self window] isKindOfClass:[PopupWindow class]]) {
// We rely on this function to tell us that the mousedown was on a
// background window. Inside mouseDown we can't tell whether we were
// inactive because at that point we've already been made active.
// Unfortunately, acceptsFirstMouse is called for PopupWindows even when
// their parent window is active, so ignore this on them for now.
mClickThroughMouseDownEvent = [aEvent retain];
}
return YES;
}
- (void)scrollRect:(NSRect)aRect by:(NSSize)offset
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Update any pending dirty rects to reflect the new scroll position
if (mPendingDirtyRects) {
unsigned int count = [mPendingDirtyRects count];
for (unsigned int i = 0; i < count; ++i) {
NSRect oldRect = [[mPendingDirtyRects objectAtIndex:i] rectValue];
NSRect newRect = NSOffsetRect(oldRect, offset.width, offset.height);
[mPendingDirtyRects replaceObjectAtIndex:i
withObject:[NSValue valueWithRect:newRect]];
}
}
[super scrollRect:aRect by:offset];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (BOOL)mouseDownCanMoveWindow
{
// Return YES so that _regionForOpaqueDescendants gets called, where the
// actual draggable region will be assembled.
return YES;
}
-(void)updateGLContext
{
if (mGLContext) {
CGLLockContext((CGLContextObj)[mGLContext CGLContextObj]);
[mGLContext setView:self];
[mGLContext update];
CGLUnlockContext((CGLContextObj)[mGLContext CGLContextObj]);
}
}
- (void)_surfaceNeedsUpdate:(NSNotification*)notification
{
[self updateGLContext];
}
- (BOOL)wantsBestResolutionOpenGLSurface
{
return nsCocoaUtils::HiDPIEnabled() ? YES : NO;
}
- (void)viewDidChangeBackingProperties
{
[super viewDidChangeBackingProperties];
if (mGeckoChild) {
// actually, it could be the color space that's changed,
// but we can't tell the difference here except by retrieving
// the backing scale factor and comparing to the old value
mGeckoChild->BackingScaleFactorChanged();
}
}
- (BOOL)isCoveringTitlebar
{
return [[self window] isKindOfClass:[BaseWindow class]] &&
[(BaseWindow*)[self window] mainChildView] == self &&
[(BaseWindow*)[self window] drawsContentsIntoWindowFrame];
}
- (void)viewWillStartLiveResize
{
nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
if (!observerService) {
return;
}
observerService->NotifyObservers(nullptr, "live-resize-start", nullptr);
}
- (void)viewDidEndLiveResize
{
nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
if (!observerService) {
return;
}
observerService->NotifyObservers(nullptr, "live-resize-end", nullptr);
}
- (NSColor*)vibrancyFillColorForThemeGeometryType:(nsITheme::ThemeGeometryType)aThemeGeometryType
{
if (!mGeckoChild) {
return [NSColor whiteColor];
}
return mGeckoChild->VibrancyFillColorForThemeGeometryType(aThemeGeometryType);
}
- (NSColor*)vibrancyFontSmoothingBackgroundColorForThemeGeometryType:(nsITheme::ThemeGeometryType)aThemeGeometryType
{
if (!mGeckoChild) {
return [NSColor clearColor];
}
return mGeckoChild->VibrancyFontSmoothingBackgroundColorForThemeGeometryType(aThemeGeometryType);
}
- (LayoutDeviceIntRegion)nativeDirtyRegionWithBoundingRect:(NSRect)aRect
{
LayoutDeviceIntRect boundingRect = mGeckoChild->CocoaPointsToDevPixels(aRect);
const NSRect *rects;
NSInteger count;
[self getRectsBeingDrawn:&rects count:&count];
if (count > MAX_RECTS_IN_REGION) {
return boundingRect;
}
LayoutDeviceIntRegion region;
for (NSInteger i = 0; i < count; ++i) {
region.Or(region, mGeckoChild->CocoaPointsToDevPixels(rects[i]));
}
region.And(region, boundingRect);
return region;
}
// The display system has told us that a portion of our view is dirty. Tell
// gecko to paint it
- (void)drawRect:(NSRect)aRect
{
CGContextRef cgContext = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
[self drawRect:aRect inContext:cgContext];
// If we're a transparent window and our contents have changed, we need
// to make sure the shadow is updated to the new contents.
if ([[self window] isKindOfClass:[BaseWindow class]]) {
[(BaseWindow*)[self window] deferredInvalidateShadow];
}
}
- (void)drawRect:(NSRect)aRect inContext:(CGContextRef)aContext
{
if (!mGeckoChild || !mGeckoChild->IsVisible())
return;
#ifdef DEBUG_UPDATE
LayoutDeviceIntRect geckoBounds;
mGeckoChild->GetBounds(geckoBounds);
fprintf (stderr, "---- Update[%p][%p] [%f %f %f %f] cgc: %p\n gecko bounds: [%d %d %d %d]\n",
self, mGeckoChild,
aRect.origin.x, aRect.origin.y, aRect.size.width, aRect.size.height, aContext,
geckoBounds.x, geckoBounds.y, geckoBounds.width, geckoBounds.height);
CGAffineTransform xform = CGContextGetCTM(aContext);
fprintf (stderr, " xform in: [%f %f %f %f %f %f]\n", xform.a, xform.b, xform.c, xform.d, xform.tx, xform.ty);
#endif
if ([self isUsingOpenGL]) {
// For Gecko-initiated repaints in OpenGL mode, drawUsingOpenGL is
// directly called from a delayed perform callback - without going through
// drawRect.
// Paints that come through here are triggered by something that Cocoa
// controls, for example by window resizing or window focus changes.
// Since this view is usually declared as opaque, the window's pixel
// buffer may now contain garbage which we need to prevent from reaching
// the screen. The only place where garbage can show is in the window
// corners and the vibrant regions of the window - the rest of the window
// is covered by opaque content in our OpenGL surface.
// So we need to clear the pixel buffer contents in these areas.
mGeckoChild->ClearVibrantAreas();
[self clearCorners];
// Do GL composition and return.
[self drawUsingOpenGL];
return;
}
PROFILER_LABEL("ChildView", "drawRect",
js::ProfileEntry::Category::GRAPHICS);
// The CGContext that drawRect supplies us with comes with a transform that
// scales one user space unit to one Cocoa point, which can consist of
// multiple dev pixels. But Gecko expects its supplied context to be scaled
// to device pixels, so we need to reverse the scaling.
double scale = mGeckoChild->BackingScaleFactor();
CGContextSaveGState(aContext);
CGContextScaleCTM(aContext, 1.0 / scale, 1.0 / scale);
NSSize viewSize = [self bounds].size;
nsIntSize backingSize(viewSize.width * scale, viewSize.height * scale);
CGContextSaveGState(aContext);
LayoutDeviceIntRegion region = [self nativeDirtyRegionWithBoundingRect:aRect];
// Create Cairo objects.
RefPtr<gfxQuartzSurface> targetSurface;
RefPtr<gfx::DrawTarget> dt =
gfx::Factory::CreateDrawTargetForCairoCGContext(aContext,
gfx::IntSize(backingSize.width,
backingSize.height));
MOZ_ASSERT(dt); // see implementation
dt->AddUserData(&gfxContext::sDontUseAsSourceKey, dt, nullptr);
RefPtr<gfxContext> targetContext = new gfxContext(dt);
// Set up the clip region.
LayoutDeviceIntRegion::RectIterator iter(region);
targetContext->NewPath();
for (;;) {
const LayoutDeviceIntRect* r = iter.Next();
if (!r)
break;
targetContext->Rectangle(gfxRect(r->x, r->y, r->width, r->height));
}
targetContext->Clip();
nsAutoRetainCocoaObject kungFuDeathGrip(self);
bool painted = false;
if (mGeckoChild->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_BASIC) {
nsBaseWidget::AutoLayerManagerSetup
setupLayerManager(mGeckoChild, targetContext, BufferMode::BUFFER_NONE);
painted = mGeckoChild->PaintWindow(region.ToUnknownRegion());
} else if (mGeckoChild->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT) {
// We only need this so that we actually get DidPaintWindow fired
painted = mGeckoChild->PaintWindow(region.ToUnknownRegion());
}
targetContext = nullptr;
targetSurface = nullptr;
CGContextRestoreGState(aContext);
// Undo the scale transform so that from now on the context is in
// CocoaPoints again.
CGContextRestoreGState(aContext);
if (!painted && [self isOpaque]) {
// Gecko refused to draw, but we've claimed to be opaque, so we have to
// draw something--fill with white.
CGContextSetRGBFillColor(aContext, 1, 1, 1, 1);
CGContextFillRect(aContext, NSRectToCGRect(aRect));
}
if ([self isCoveringTitlebar]) {
[self drawTitleString];
[self drawTitlebarHighlight];
[self maskTopCornersInContext:aContext];
}
#ifdef DEBUG_UPDATE
fprintf (stderr, "---- update done ----\n");
#if 0
CGContextSetRGBStrokeColor (aContext,
((((unsigned long)self) & 0xff)) / 255.0,
((((unsigned long)self) & 0xff00) >> 8) / 255.0,
((((unsigned long)self) & 0xff0000) >> 16) / 255.0,
0.5);
#endif
CGContextSetRGBStrokeColor(aContext, 1, 0, 0, 0.8);
CGContextSetLineWidth(aContext, 4.0);
CGContextStrokeRect(aContext, NSRectToCGRect(aRect));
#endif
}
- (BOOL)isUsingMainThreadOpenGL
{
if (!mGeckoChild || ![self window])
return NO;
return mGeckoChild->GetLayerManager(nullptr)->GetBackendType() == mozilla::layers::LayersBackend::LAYERS_OPENGL;
}
- (BOOL)isUsingOpenGL
{
if (!mGeckoChild || ![self window])
return NO;
return mGLContext || mUsingOMTCompositor || [self isUsingMainThreadOpenGL];
}
- (void)drawUsingOpenGL
{
PROFILER_LABEL("ChildView", "drawUsingOpenGL",
js::ProfileEntry::Category::GRAPHICS);
if (![self isUsingOpenGL] || !mGeckoChild->IsVisible())
return;
mWaitingForPaint = NO;
nsIntRect geckoBounds;
mGeckoChild->GetBoundsUntyped(geckoBounds);
nsIntRegion region(geckoBounds);
mGeckoChild->PaintWindow(region);
// Force OpenGL to refresh the very first time we draw. This works around a
// Mac OS X bug that stops windows updating on OS X when we use OpenGL.
if (!mDidForceRefreshOpenGL) {
[self performSelector:@selector(forceRefreshOpenGL) withObject:nil afterDelay:0];
mDidForceRefreshOpenGL = YES;
}
}
// Called asynchronously after setNeedsDisplay in order to avoid entering the
// normal drawing machinery.
- (void)drawUsingOpenGLCallback
{
if (mWaitingForPaint) {
[self drawUsingOpenGL];
}
}
- (BOOL)hasRoundedBottomCorners
{
return [[self window] respondsToSelector:@selector(bottomCornerRounded)] &&
[[self window] bottomCornerRounded];
}
- (CGFloat)cornerRadius
{
NSView* frameView = [[[self window] contentView] superview];
if (!frameView || ![frameView respondsToSelector:@selector(roundedCornerRadius)])
return 4.0f;
return [frameView roundedCornerRadius];
}
// Accelerated windows have two NSSurfaces:
// (1) The window's pixel buffer in the back and
// (2) the OpenGL view in the front.
// These two surfaces are composited by the window manager. Drawing into the
// CGContext which is provided by drawRect ends up in (1).
// When our window has rounded corners, the OpenGL view has transparent pixels
// in the corners. In these places the contents of the window's pixel buffer
// can show through. So we need to make sure that the pixel buffer is
// transparent in the corners so that no garbage reaches the screen.
// The contents of the pixel buffer in the rest of the window don't matter
// because they're covered by opaque pixels of the OpenGL context.
// Making the corners transparent works even though our window is
// declared "opaque" (in the NSWindow's isOpaque method).
- (void)clearCorners
{
CGFloat radius = [self cornerRadius];
CGFloat w = [self bounds].size.width, h = [self bounds].size.height;
[[NSColor clearColor] set];
if ([self isCoveringTitlebar]) {
NSRectFill(NSMakeRect(0, 0, radius, radius));
NSRectFill(NSMakeRect(w - radius, 0, radius, radius));
}
if ([self hasRoundedBottomCorners]) {
NSRectFill(NSMakeRect(0, h - radius, radius, radius));
NSRectFill(NSMakeRect(w - radius, h - radius, radius, radius));
}
}
// This is the analog of nsChildView::MaybeDrawRoundedCorners for CGContexts.
// We only need to mask the top corners here because Cocoa does the masking
// for the window's bottom corners automatically (starting with 10.7).
- (void)maskTopCornersInContext:(CGContextRef)aContext
{
CGFloat radius = [self cornerRadius];
int32_t devPixelCornerRadius = mGeckoChild->CocoaPointsToDevPixels(radius);
// First make sure that mTopLeftCornerMask is set up.
if (!mTopLeftCornerMask ||
int32_t(CGImageGetWidth(mTopLeftCornerMask)) != devPixelCornerRadius) {
CGImageRelease(mTopLeftCornerMask);
CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB();
CGContextRef imgCtx = CGBitmapContextCreate(NULL,
devPixelCornerRadius,
devPixelCornerRadius,
8, devPixelCornerRadius * 4,
rgb, kCGImageAlphaPremultipliedFirst);
CGColorSpaceRelease(rgb);
DrawTopLeftCornerMask(imgCtx, devPixelCornerRadius);
mTopLeftCornerMask = CGBitmapContextCreateImage(imgCtx);
CGContextRelease(imgCtx);
}
// kCGBlendModeDestinationIn is the secret sauce which allows us to erase
// already painted pixels. It's defined as R = D * Sa: multiply all channels
// of the destination pixel with the alpha of the source pixel. In our case,
// the source is mTopLeftCornerMask.
CGContextSaveGState(aContext);
CGContextSetBlendMode(aContext, kCGBlendModeDestinationIn);
CGRect destRect = CGRectMake(0, 0, radius, radius);
// Erase the top left corner...
CGContextDrawImage(aContext, destRect, mTopLeftCornerMask);
// ... and the top right corner.
CGContextTranslateCTM(aContext, [self bounds].size.width, 0);
CGContextScaleCTM(aContext, -1, 1);
CGContextDrawImage(aContext, destRect, mTopLeftCornerMask);
CGContextRestoreGState(aContext);
}
- (void)drawTitleString
{
BaseWindow* window = (BaseWindow*)[self window];
if (![window wantsTitleDrawn]) {
return;
}
NSView* frameView = [[window contentView] superview];
if (![frameView respondsToSelector:@selector(_drawTitleBar:)]) {
return;
}
NSGraphicsContext* oldContext = [NSGraphicsContext currentContext];
CGContextRef ctx = (CGContextRef)[oldContext graphicsPort];
CGContextSaveGState(ctx);
if ([oldContext isFlipped] != [frameView isFlipped]) {
CGContextTranslateCTM(ctx, 0, [self bounds].size.height);
CGContextScaleCTM(ctx, 1, -1);
}
[NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:ctx flipped:[frameView isFlipped]]];
[frameView _drawTitleBar:[frameView bounds]];
CGContextRestoreGState(ctx);
[NSGraphicsContext setCurrentContext:oldContext];
}
- (void)drawTitlebarHighlight
{
DrawTitlebarHighlight([self bounds].size, [self cornerRadius],
mGeckoChild->DevPixelsToCocoaPoints(1));
}
- (void)releaseWidgets:(NSArray*)aWidgetArray
{
if (!aWidgetArray) {
return;
}
NSInteger count = [aWidgetArray count];
for (NSInteger i = 0; i < count; ++i) {
NSNumber* pointer = (NSNumber*) [aWidgetArray objectAtIndex:i];
nsIWidget* widget = (nsIWidget*) [pointer unsignedIntegerValue];
NS_RELEASE(widget);
}
}
- (void)viewWillDraw
{
if (mGeckoChild) {
// The OS normally *will* draw our NSWindow, no matter what we do here.
// But Gecko can delete our parent widget(s) (along with mGeckoChild)
// while processing a paint request, which closes our NSWindow and
// makes the OS throw an NSInternalInconsistencyException assertion when
// it tries to draw it. Sometimes the OS also aborts the browser process.
// So we need to retain our parent(s) here and not release it/them until
// the next time through the main thread's run loop. When we do this we
// also need to retain and release mGeckoChild, which holds a strong
// reference to us (otherwise we might have been deleted by the time
// releaseWidgets: is called on us). See bug 550392.
nsIWidget* parent = mGeckoChild->GetParent();
if (parent) {
NSMutableArray* widgetArray = [NSMutableArray arrayWithCapacity:3];
while (parent) {
NS_ADDREF(parent);
[widgetArray addObject:[NSNumber numberWithUnsignedInteger:(NSUInteger)parent]];
parent = parent->GetParent();
}
NS_ADDREF(mGeckoChild);
[widgetArray addObject:[NSNumber numberWithUnsignedInteger:(NSUInteger)mGeckoChild]];
[self performSelector:@selector(releaseWidgets:)
withObject:widgetArray
afterDelay:0];
}
if ([self isUsingOpenGL]) {
if (mGeckoChild->GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT) {
ClientLayerManager *manager = static_cast<ClientLayerManager*>(mGeckoChild->GetLayerManager());
manager->AsShadowForwarder()->WindowOverlayChanged();
}
}
mGeckoChild->WillPaintWindow();
}
[super viewWillDraw];
}
#if USE_CLICK_HOLD_CONTEXTMENU
//
// -clickHoldCallback:
//
// called from a timer two seconds after a mouse down to see if we should display
// a context menu (click-hold). |anEvent| is the original mouseDown event. If we're
// still in that mouseDown by this time, put up the context menu, otherwise just
// fuhgeddaboutit. |anEvent| has been retained by the OS until after this callback
// fires so we're ok there.
//
// This code currently messes in a bunch of edge cases (bugs 234751, 232964, 232314)
// so removing it until we get it straightened out.
//
- (void)clickHoldCallback:(id)theEvent;
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if( theEvent == [NSApp currentEvent] ) {
// we're still in the middle of the same mousedown event here, activate
// click-hold context menu by triggering the right mouseDown action.
NSEvent* clickHoldEvent = [NSEvent mouseEventWithType:NSRightMouseDown
location:[theEvent locationInWindow]
modifierFlags:[theEvent modifierFlags]
timestamp:[theEvent timestamp]
windowNumber:[theEvent windowNumber]
context:[theEvent context]
eventNumber:[theEvent eventNumber]
clickCount:[theEvent clickCount]
pressure:[theEvent pressure]];
[self rightMouseDown:clickHoldEvent];
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
#endif
// If we've just created a non-native context menu, we need to mark it as
// such and let the OS (and other programs) know when it opens and closes
// (this is how the OS knows to close other programs' context menus when
// ours open). We send the initial notification here, but others are sent
// in nsCocoaWindow::Show().
- (void)maybeInitContextMenuTracking
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
#ifdef MOZ_USE_NATIVE_POPUP_WINDOWS
return;
#endif /* MOZ_USE_NATIVE_POPUP_WINDOWS */
nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
NS_ENSURE_TRUE_VOID(rollupListener);
nsCOMPtr<nsIWidget> widget = rollupListener->GetRollupWidget();
NS_ENSURE_TRUE_VOID(widget);
NSWindow *popupWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
if (!popupWindow || ![popupWindow isKindOfClass:[PopupWindow class]])
return;
[[NSDistributedNotificationCenter defaultCenter]
postNotificationName:@"com.apple.HIToolbox.beginMenuTrackingNotification"
object:@"org.mozilla.gecko.PopupWindow"];
[(PopupWindow*)popupWindow setIsContextMenu:YES];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
// Returns true if the event should no longer be processed, false otherwise.
// This does not return whether or not anything was rolled up.
- (BOOL)maybeRollup:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
BOOL consumeEvent = NO;
nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
NS_ENSURE_TRUE(rollupListener, false);
nsCOMPtr<nsIWidget> rollupWidget = rollupListener->GetRollupWidget();
if (rollupWidget) {
NSWindow* currentPopup = static_cast<NSWindow*>(rollupWidget->GetNativeData(NS_NATIVE_WINDOW));
if (!nsCocoaUtils::IsEventOverWindow(theEvent, currentPopup)) {
// event is not over the rollup window, default is to roll up
bool shouldRollup = true;
// check to see if scroll events should roll up the popup
if ([theEvent type] == NSScrollWheel) {
shouldRollup = rollupListener->ShouldRollupOnMouseWheelEvent();
// consume scroll events that aren't over the popup
// unless the popup is an arrow panel
consumeEvent = rollupListener->ShouldConsumeOnMouseWheelEvent();
}
// if we're dealing with menus, we probably have submenus and
// we don't want to rollup if the click is in a parent menu of
// the current submenu
uint32_t popupsToRollup = UINT32_MAX;
nsAutoTArray<nsIWidget*, 5> widgetChain;
uint32_t sameTypeCount = rollupListener->GetSubmenuWidgetChain(&widgetChain);
for (uint32_t i = 0; i < widgetChain.Length(); i++) {
nsIWidget* widget = widgetChain[i];
NSWindow* currWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
if (nsCocoaUtils::IsEventOverWindow(theEvent, currWindow)) {
// don't roll up if the mouse event occurred within a menu of the
// same type. If the mouse event occurred in a menu higher than
// that, roll up, but pass the number of popups to Rollup so
// that only those of the same type close up.
if (i < sameTypeCount) {
shouldRollup = false;
}
else {
popupsToRollup = sameTypeCount;
}
break;
}
}
if (shouldRollup) {
if ([theEvent type] == NSLeftMouseDown) {
NSPoint point = [NSEvent mouseLocation];
FlipCocoaScreenCoordinate(point);
nsIntPoint pos(point.x, point.y);
consumeEvent = (BOOL)rollupListener->Rollup(popupsToRollup, true, &pos, nullptr);
}
else {
consumeEvent = (BOOL)rollupListener->Rollup(popupsToRollup, true, nullptr, nullptr);
}
}
}
}
return consumeEvent;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
/*
* In OS X Mountain Lion and above, smart zoom gestures are implemented in
* smartMagnifyWithEvent. In OS X Lion, they are implemented in
* magnifyWithEvent. See inline comments for more info.
*
* The prototypes swipeWithEvent, beginGestureWithEvent, magnifyWithEvent,
* smartMagnifyWithEvent, rotateWithEvent, and endGestureWithEvent were
* obtained from the following links:
* https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSResponder_Class/Reference/Reference.html
* https://developer.apple.com/library/mac/#releasenotes/Cocoa/AppKit.html
*/
- (void)swipeWithEvent:(NSEvent *)anEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!anEvent || !mGeckoChild)
return;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
float deltaX = [anEvent deltaX]; // left=1.0, right=-1.0
float deltaY = [anEvent deltaY]; // up=1.0, down=-1.0
// Setup the "swipe" event.
WidgetSimpleGestureEvent geckoEvent(true, eSwipeGesture, mGeckoChild);
[self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
// Record the left/right direction.
if (deltaX > 0.0)
geckoEvent.direction |= nsIDOMSimpleGestureEvent::DIRECTION_LEFT;
else if (deltaX < 0.0)
geckoEvent.direction |= nsIDOMSimpleGestureEvent::DIRECTION_RIGHT;
// Record the up/down direction.
if (deltaY > 0.0)
geckoEvent.direction |= nsIDOMSimpleGestureEvent::DIRECTION_UP;
else if (deltaY < 0.0)
geckoEvent.direction |= nsIDOMSimpleGestureEvent::DIRECTION_DOWN;
// Send the event.
mGeckoChild->DispatchWindowEvent(geckoEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)beginGestureWithEvent:(NSEvent *)anEvent
{
if (!anEvent)
return;
mGestureState = eGestureState_StartGesture;
mCumulativeMagnification = 0;
mCumulativeRotation = 0.0;
}
- (void)magnifyWithEvent:(NSEvent *)anEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!anEvent || !mGeckoChild)
return;
/*
* In OS X 10.7.* (Lion), smart zoom events come through magnifyWithEvent,
* instead of smartMagnifyWithEvent. See bug 863841.
*/
if ([ChildView isLionSmartMagnifyEvent: anEvent]) {
[self smartMagnifyWithEvent: anEvent];
return;
}
nsAutoRetainCocoaObject kungFuDeathGrip(self);
float deltaZ = [anEvent deltaZ];
EventMessage msg;
switch (mGestureState) {
case eGestureState_StartGesture:
msg = eMagnifyGestureStart;
mGestureState = eGestureState_MagnifyGesture;
break;
case eGestureState_MagnifyGesture:
msg = eMagnifyGestureUpdate;
break;
case eGestureState_None:
case eGestureState_RotateGesture:
default:
return;
}
// Setup the event.
WidgetSimpleGestureEvent geckoEvent(true, msg, mGeckoChild);
geckoEvent.delta = deltaZ;
[self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
// Send the event.
mGeckoChild->DispatchWindowEvent(geckoEvent);
// Keep track of the cumulative magnification for the final "magnify" event.
mCumulativeMagnification += deltaZ;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)smartMagnifyWithEvent:(NSEvent *)anEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!anEvent || !mGeckoChild) {
return;
}
nsAutoRetainCocoaObject kungFuDeathGrip(self);
// Setup the "double tap" event.
WidgetSimpleGestureEvent geckoEvent(true, eTapGesture, mGeckoChild);
[self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
geckoEvent.clickCount = 1;
// Send the event.
mGeckoChild->DispatchWindowEvent(geckoEvent);
// Clear the gesture state
mGestureState = eGestureState_None;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)rotateWithEvent:(NSEvent *)anEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!anEvent || !mGeckoChild)
return;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
float rotation = [anEvent rotation];
EventMessage msg;
switch (mGestureState) {
case eGestureState_StartGesture:
msg = eRotateGestureStart;
mGestureState = eGestureState_RotateGesture;
break;
case eGestureState_RotateGesture:
msg = eRotateGestureUpdate;
break;
case eGestureState_None:
case eGestureState_MagnifyGesture:
default:
return;
}
// Setup the event.
WidgetSimpleGestureEvent geckoEvent(true, msg, mGeckoChild);
[self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
geckoEvent.delta = -rotation;
if (rotation > 0.0) {
geckoEvent.direction = nsIDOMSimpleGestureEvent::ROTATION_COUNTERCLOCKWISE;
} else {
geckoEvent.direction = nsIDOMSimpleGestureEvent::ROTATION_CLOCKWISE;
}
// Send the event.
mGeckoChild->DispatchWindowEvent(geckoEvent);
// Keep track of the cumulative rotation for the final "rotate" event.
mCumulativeRotation += rotation;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)endGestureWithEvent:(NSEvent *)anEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!anEvent || !mGeckoChild) {
// Clear the gestures state if we cannot send an event.
mGestureState = eGestureState_None;
mCumulativeMagnification = 0.0;
mCumulativeRotation = 0.0;
return;
}
nsAutoRetainCocoaObject kungFuDeathGrip(self);
switch (mGestureState) {
case eGestureState_MagnifyGesture:
{
// Setup the "magnify" event.
WidgetSimpleGestureEvent geckoEvent(true, eMagnifyGesture, mGeckoChild);
geckoEvent.delta = mCumulativeMagnification;
[self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
// Send the event.
mGeckoChild->DispatchWindowEvent(geckoEvent);
}
break;
case eGestureState_RotateGesture:
{
// Setup the "rotate" event.
WidgetSimpleGestureEvent geckoEvent(true, eRotateGesture, mGeckoChild);
[self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
geckoEvent.delta = -mCumulativeRotation;
if (mCumulativeRotation > 0.0) {
geckoEvent.direction = nsIDOMSimpleGestureEvent::ROTATION_COUNTERCLOCKWISE;
} else {
geckoEvent.direction = nsIDOMSimpleGestureEvent::ROTATION_CLOCKWISE;
}
// Send the event.
mGeckoChild->DispatchWindowEvent(geckoEvent);
}
break;
case eGestureState_None:
case eGestureState_StartGesture:
default:
break;
}
// Clear the gestures state.
mGestureState = eGestureState_None;
mCumulativeMagnification = 0.0;
mCumulativeRotation = 0.0;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
+ (BOOL)isLionSmartMagnifyEvent:(NSEvent*)anEvent
{
/*
* On Lion, smart zoom events have type NSEventTypeGesture, subtype 0x16,
* whereas pinch zoom events have type NSEventTypeMagnify. So, use that to
* discriminate between the two. Smart zoom gestures do not call
* beginGestureWithEvent or endGestureWithEvent, so mGestureState is not
* changed. Documentation couldn't be found for the meaning of the subtype
* 0x16, but it will probably never change. See bug 863841.
*/
return nsCocoaFeatures::OnLionOrLater() &&
!nsCocoaFeatures::OnMountainLionOrLater() &&
[anEvent type] == NSEventTypeGesture &&
[anEvent subtype] == 0x16;
}
- (bool)shouldConsiderStartingSwipeFromEvent:(NSEvent*)anEvent
{
if (!nsCocoaFeatures::OnLionOrLater()) {
return false;
}
// This method checks whether the AppleEnableSwipeNavigateWithScrolls global
// preference is set. If it isn't, fluid swipe tracking is disabled, and a
// horizontal two-finger gesture is always a scroll (even in Safari). This
// preference can't (currently) be set from the Preferences UI -- only using
// 'defaults write'.
if (![NSEvent isSwipeTrackingFromScrollEventsEnabled]) {
return false;
}
// Only initiate horizontal tracking for gestures that have just begun --
// otherwise a scroll to one side of the page can have a swipe tacked on
// to it.
NSEventPhase eventPhase = nsCocoaUtils::EventPhase(anEvent);
if ([anEvent type] != NSScrollWheel ||
eventPhase != NSEventPhaseBegan ||
![anEvent hasPreciseScrollingDeltas]) {
return false;
}
// Only initiate horizontal tracking for events whose horizontal element is
// at least eight times larger than its vertical element. This minimizes
// performance problems with vertical scrolls (by minimizing the possibility
// that they'll be misinterpreted as horizontal swipes), while still
// tolerating a small vertical element to a true horizontal swipe. The number
// '8' was arrived at by trial and error.
CGFloat deltaX = [anEvent scrollingDeltaX];
CGFloat deltaY = [anEvent scrollingDeltaY];
return std::abs(deltaX) > std::abs(deltaY) * 8;
}
- (void)setUsingOMTCompositor:(BOOL)aUseOMTC
{
mUsingOMTCompositor = aUseOMTC;
}
// Returning NO from this method only disallows ordering on mousedown - in order
// to prevent it for mouseup too, we need to call [NSApp preventWindowOrdering]
// when handling the mousedown event.
- (BOOL)shouldDelayWindowOrderingForEvent:(NSEvent*)aEvent
{
// Always using system-provided window ordering for normal windows.
if (![[self window] isKindOfClass:[PopupWindow class]])
return NO;
// Don't reorder when we don't have a parent window, like when we're a
// context menu or a tooltip.
return ![[self window] parentWindow];
}
- (void)mouseDown:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if ([self shouldDelayWindowOrderingForEvent:theEvent]) {
[NSApp preventWindowOrdering];
}
// If we've already seen this event due to direct dispatch from menuForEvent:
// just bail; if not, remember it.
if (mLastMouseDownEvent == theEvent) {
[mLastMouseDownEvent release];
mLastMouseDownEvent = nil;
return;
}
else {
[mLastMouseDownEvent release];
mLastMouseDownEvent = [theEvent retain];
}
[gLastDragMouseDownEvent release];
gLastDragMouseDownEvent = [theEvent retain];
// We need isClickThrough because at this point the window we're in might
// already have become main, so the check for isMainWindow in
// WindowAcceptsEvent isn't enough. It also has to check isClickThrough.
BOOL isClickThrough = (theEvent == mClickThroughMouseDownEvent);
[mClickThroughMouseDownEvent release];
mClickThroughMouseDownEvent = nil;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
if ([self maybeRollup:theEvent] ||
!ChildViewMouseTracker::WindowAcceptsEvent([self window], theEvent, self, isClickThrough)) {
// Remember blocking because that means we want to block mouseup as well.
mBlockedLastMouseDown = YES;
return;
}
#if USE_CLICK_HOLD_CONTEXTMENU
// fire off timer to check for click-hold after two seconds. retains |theEvent|
[self performSelector:@selector(clickHoldCallback:) withObject:theEvent afterDelay:2.0];
#endif
// in order to send gecko events we'll need a gecko widget
if (!mGeckoChild)
return;
NSUInteger modifierFlags = [theEvent modifierFlags];
WidgetMouseEvent geckoEvent(true, eMouseDown, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
NSInteger clickCount = [theEvent clickCount];
if (mBlockedLastMouseDown && clickCount > 1) {
// Don't send a double click if the first click of the double click was
// blocked.
clickCount--;
}
geckoEvent.clickCount = clickCount;
if (modifierFlags & NSControlKeyMask)
geckoEvent.button = WidgetMouseEvent::eRightButton;
else
geckoEvent.button = WidgetMouseEvent::eLeftButton;
mGeckoChild->DispatchAPZAwareEvent(&geckoEvent);
mBlockedLastMouseDown = NO;
// XXX maybe call markedTextSelectionChanged:client: here?
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)mouseUp:(NSEvent *)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mGeckoChild || mBlockedLastMouseDown)
return;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
WidgetMouseEvent geckoEvent(true, eMouseUp, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
if ([theEvent modifierFlags] & NSControlKeyMask)
geckoEvent.button = WidgetMouseEvent::eRightButton;
else
geckoEvent.button = WidgetMouseEvent::eLeftButton;
// This might destroy our widget (and null out mGeckoChild).
bool defaultPrevented =
(mGeckoChild->DispatchAPZAwareEvent(&geckoEvent) == nsEventStatus_eConsumeNoDefault);
// Check to see if we are double-clicking in the titlebar.
CGFloat locationInTitlebar = [[self window] frame].size.height - [theEvent locationInWindow].y;
LayoutDeviceIntPoint pos = geckoEvent.refPoint;
if (!defaultPrevented && [theEvent clickCount] == 2 &&
mGeckoChild->GetDraggableRegion().Contains(pos.x, pos.y) &&
[[self window] isKindOfClass:[ToolbarWindow class]] &&
(locationInTitlebar < [(ToolbarWindow*)[self window] titlebarHeight] ||
locationInTitlebar < [(ToolbarWindow*)[self window] unifiedToolbarHeight])) {
if ([self shouldZoomOnDoubleClick]) {
[[self window] performZoom:nil];
} else if ([self shouldMinimizeOnTitlebarDoubleClick]) {
NSButton *minimizeButton = [[self window] standardWindowButton:NSWindowMiniaturizeButton];
[minimizeButton performClick:self];
}
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)sendMouseEnterOrExitEvent:(NSEvent*)aEvent
enter:(BOOL)aEnter
type:(WidgetMouseEvent::exitType)aType
{
if (!mGeckoChild)
return;
NSPoint windowEventLocation = nsCocoaUtils::EventLocationForWindow(aEvent, [self window]);
NSPoint localEventLocation = [self convertPoint:windowEventLocation fromView:nil];
EventMessage msg = aEnter ? eMouseEnterIntoWidget : eMouseExitFromWidget;
WidgetMouseEvent event(true, msg, mGeckoChild, WidgetMouseEvent::eReal);
event.refPoint = LayoutDeviceIntPoint::FromUnknownPoint(
mGeckoChild->CocoaPointsToDevPixels(localEventLocation));
event.exit = aType;
nsEventStatus status; // ignored
mGeckoChild->DispatchEvent(&event, status);
}
- (void)updateWindowDraggableState
{
// Trigger update to the window server.
[[self window] setMovableByWindowBackground:NO];
[[self window] setMovableByWindowBackground:YES];
}
// aRect is in view coordinates relative to this NSView.
- (CGRect)convertToFlippedWindowCoordinates:(NSRect)aRect
{
// First, convert the rect to regular window coordinates...
NSRect inWindowCoords = [self convertRect:aRect toView:nil];
// ... and then flip it again because window coordinates have their origin
// in the bottom left corner, and we need it to be in the top left corner.
inWindowCoords.origin.y = [[self window] frame].size.height - NSMaxY(inWindowCoords);
return NSRectToCGRect(inWindowCoords);
}
static CGSRegionObj
NewCGSRegionFromRegion(const LayoutDeviceIntRegion& aRegion,
CGRect (^aRectConverter)(const LayoutDeviceIntRect&))
{
nsTArray<CGRect> rects;
LayoutDeviceIntRegion::RectIterator iter(aRegion);
for (;;) {
const LayoutDeviceIntRect* r = iter.Next();
if (!r) {
break;
}
rects.AppendElement(aRectConverter(*r));
}
CGSRegionObj region;
CGSNewRegionWithRectList(rects.Elements(), rects.Length(), &region);
return region;
}
// This function is called with forMove:YES to calculate the draggable region
// of the window which will be submitted to the window server. Window dragging
// is handled on the window server without calling back into our process, so it
// also works while our app is unresponsive.
- (CGSRegionObj)_regionForOpaqueDescendants:(NSRect)aRect forMove:(BOOL)aForMove
{
if (!aForMove || !mGeckoChild) {
return [super _regionForOpaqueDescendants:aRect forMove:aForMove];
}
LayoutDeviceIntRect boundingRect = mGeckoChild->CocoaPointsToDevPixels(aRect);
LayoutDeviceIntRegion opaqueRegion;
opaqueRegion.Sub(boundingRect, mGeckoChild->GetDraggableRegion());
return NewCGSRegionFromRegion(opaqueRegion, ^(const LayoutDeviceIntRect& r) {
return [self convertToFlippedWindowCoordinates:mGeckoChild->DevPixelsToCocoaPoints(r)];
});
}
// Starting with 10.10, in addition to the traditional
// -[NSView _regionForOpaqueDescendants:forMove:] method, there's a new form with
// an additional forUnderTitlebar argument, which is sometimes called instead of
// the old form. We need to override the new variant as well.
- (CGSRegionObj)_regionForOpaqueDescendants:(NSRect)aRect
forMove:(BOOL)aForMove
forUnderTitlebar:(BOOL)aForUnderTitlebar
{
if (!aForMove || !mGeckoChild) {
return [super _regionForOpaqueDescendants:aRect
forMove:aForMove
forUnderTitlebar:aForUnderTitlebar];
}
return [self _regionForOpaqueDescendants:aRect forMove:aForMove];
}
- (void)handleMouseMoved:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mGeckoChild)
return;
WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
mGeckoChild->DispatchAPZAwareEvent(&geckoEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)mouseDragged:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mGeckoChild)
return;
gLastDragView = self;
WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
mGeckoChild->DispatchInputEvent(&geckoEvent);
// Note, sending the above event might have destroyed our widget since we didn't retain.
// Fine so long as we don't access any local variables from here on.
gLastDragView = nil;
// XXX maybe call markedTextSelectionChanged:client: here?
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)rightMouseDown:(NSEvent *)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
[self maybeRollup:theEvent];
if (!mGeckoChild)
return;
// The right mouse went down, fire off a right mouse down event to gecko
WidgetMouseEvent geckoEvent(true, eMouseDown, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eRightButton;
geckoEvent.clickCount = [theEvent clickCount];
mGeckoChild->DispatchAPZAwareEvent(&geckoEvent);
if (!mGeckoChild)
return;
// Let the superclass do the context menu stuff.
[super rightMouseDown:theEvent];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)rightMouseUp:(NSEvent *)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mGeckoChild)
return;
WidgetMouseEvent geckoEvent(true, eMouseUp, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eRightButton;
geckoEvent.clickCount = [theEvent clickCount];
nsAutoRetainCocoaObject kungFuDeathGrip(self);
mGeckoChild->DispatchAPZAwareEvent(&geckoEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)rightMouseDragged:(NSEvent*)theEvent
{
if (!mGeckoChild)
return;
WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eRightButton;
// send event into Gecko by going directly to the
// the widget.
mGeckoChild->DispatchInputEvent(&geckoEvent);
}
- (void)otherMouseDown:(NSEvent *)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
if ([self maybeRollup:theEvent] ||
!ChildViewMouseTracker::WindowAcceptsEvent([self window], theEvent, self))
return;
if (!mGeckoChild)
return;
WidgetMouseEvent geckoEvent(true, eMouseDown, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eMiddleButton;
geckoEvent.clickCount = [theEvent clickCount];
mGeckoChild->DispatchInputEvent(&geckoEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)otherMouseUp:(NSEvent *)theEvent
{
if (!mGeckoChild)
return;
WidgetMouseEvent geckoEvent(true, eMouseUp, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eMiddleButton;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
mGeckoChild->DispatchInputEvent(&geckoEvent);
}
- (void)otherMouseDragged:(NSEvent*)theEvent
{
if (!mGeckoChild)
return;
WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eMiddleButton;
// send event into Gecko by going directly to the
// the widget.
mGeckoChild->DispatchInputEvent(&geckoEvent);
}
static int32_t RoundUp(double aDouble)
{
return aDouble < 0 ? static_cast<int32_t>(floor(aDouble)) :
static_cast<int32_t>(ceil(aDouble));
}
- (void)sendWheelStartOrStop:(EventMessage)msg forEvent:(NSEvent *)theEvent
{
WidgetWheelEvent wheelEvent(true, msg, mGeckoChild);
[self convertCocoaMouseWheelEvent:theEvent toGeckoEvent:&wheelEvent];
mExpectingWheelStop = (msg == eWheelOperationStart);
mGeckoChild->DispatchAPZAwareEvent(wheelEvent.AsInputEvent());
}
- (void)sendWheelCondition:(BOOL)condition
first:(EventMessage)first
second:(EventMessage)second
forEvent:(NSEvent *)theEvent
{
if (mExpectingWheelStop == condition) {
[self sendWheelStartOrStop:first forEvent:theEvent];
}
[self sendWheelStartOrStop:second forEvent:theEvent];
}
static PanGestureInput::PanGestureType
PanGestureTypeForEvent(NSEvent* aEvent)
{
switch (nsCocoaUtils::EventPhase(aEvent)) {
case NSEventPhaseMayBegin:
return PanGestureInput::PANGESTURE_MAYSTART;
case NSEventPhaseCancelled:
return PanGestureInput::PANGESTURE_CANCELLED;
case NSEventPhaseBegan:
return PanGestureInput::PANGESTURE_START;
case NSEventPhaseChanged:
return PanGestureInput::PANGESTURE_PAN;
case NSEventPhaseEnded:
return PanGestureInput::PANGESTURE_END;
case NSEventPhaseNone:
switch (nsCocoaUtils::EventMomentumPhase(aEvent)) {
case NSEventPhaseBegan:
return PanGestureInput::PANGESTURE_MOMENTUMSTART;
case NSEventPhaseChanged:
return PanGestureInput::PANGESTURE_MOMENTUMPAN;
case NSEventPhaseEnded:
return PanGestureInput::PANGESTURE_MOMENTUMEND;
default:
NS_ERROR("unexpected event phase");
return PanGestureInput::PANGESTURE_PAN;
}
default:
NS_ERROR("unexpected event phase");
return PanGestureInput::PANGESTURE_PAN;
}
}
- (void)scrollWheel:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (gfxPrefs::AsyncPanZoomSeparateEventThread() && [self apzctm]) {
// Disable main-thread scrolling completely when using APZ with the
// separate event thread. This is bug 1013412.
return;
}
nsAutoRetainCocoaObject kungFuDeathGrip(self);
ChildViewMouseTracker::MouseScrolled(theEvent);
if ([self maybeRollup:theEvent]) {
return;
}
if (!mGeckoChild) {
return;
}
NSEventPhase phase = nsCocoaUtils::EventPhase(theEvent);
// Fire eWheelOperationStart/End events when 2 fingers touch/release the
// touchpad.
if (phase & NSEventPhaseMayBegin) {
[self sendWheelCondition:YES
first:eWheelOperationEnd
second:eWheelOperationStart
forEvent:theEvent];
} else if (phase & (NSEventPhaseEnded | NSEventPhaseCancelled)) {
[self sendWheelCondition:NO
first:eWheelOperationStart
second:eWheelOperationEnd
forEvent:theEvent];
}
NSPoint locationInWindow = nsCocoaUtils::EventLocationForWindow(theEvent, [self window]);
ScreenPoint position = ScreenPoint::FromUnknownPoint(
[self convertWindowCoordinates:locationInWindow]);
bool usePreciseDeltas = nsCocoaUtils::HasPreciseScrollingDeltas(theEvent) &&
Preferences::GetBool("mousewheel.enable_pixel_scrolling", true);
bool hasPhaseInformation = nsCocoaUtils::EventHasPhaseInformation(theEvent);
int32_t lineOrPageDeltaX = RoundUp(-[theEvent deltaX]);
int32_t lineOrPageDeltaY = RoundUp(-[theEvent deltaY]);
Modifiers modifiers = nsCocoaUtils::ModifiersForEvent(theEvent);
NSTimeInterval beforeNow = [[NSProcessInfo processInfo] systemUptime] - [theEvent timestamp];
PRIntervalTime eventIntervalTime = PR_IntervalNow() - PR_MillisecondsToInterval(beforeNow * 1000);
TimeStamp eventTimeStamp = TimeStamp::Now() - TimeDuration::FromSeconds(beforeNow);
ScreenPoint preciseDelta;
if (usePreciseDeltas) {
CGFloat pixelDeltaX = 0, pixelDeltaY = 0;
nsCocoaUtils::GetScrollingDeltas(theEvent, &pixelDeltaX, &pixelDeltaY);
double scale = mGeckoChild->BackingScaleFactor();
preciseDelta = ScreenPoint(-pixelDeltaX * scale, -pixelDeltaY * scale);
}
if (usePreciseDeltas && hasPhaseInformation) {
PanGestureInput panEvent(PanGestureTypeForEvent(theEvent),
eventIntervalTime, eventTimeStamp,
position, preciseDelta, modifiers);
panEvent.mLineOrPageDeltaX = lineOrPageDeltaX;
panEvent.mLineOrPageDeltaY = lineOrPageDeltaY;
bool canTriggerSwipe = [self shouldConsiderStartingSwipeFromEvent:theEvent];
panEvent.mRequiresContentResponseIfCannotScrollHorizontallyInStartDirection = canTriggerSwipe;
mGeckoChild->DispatchAPZWheelInputEvent(panEvent, canTriggerSwipe);
} else if (usePreciseDeltas) {
// This is on 10.6 or old touchpads that don't have any phase information.
ScrollWheelInput wheelEvent(eventIntervalTime, eventTimeStamp, modifiers,
ScrollWheelInput::SCROLLMODE_INSTANT,
ScrollWheelInput::SCROLLDELTA_PIXEL,
position,
preciseDelta.x,
preciseDelta.y);
wheelEvent.mLineOrPageDeltaX = lineOrPageDeltaX;
wheelEvent.mLineOrPageDeltaY = lineOrPageDeltaY;
wheelEvent.mIsMomentum = nsCocoaUtils::IsMomentumScrollEvent(theEvent);
mGeckoChild->DispatchAPZWheelInputEvent(wheelEvent, false);
} else {
ScrollWheelInput::ScrollMode scrollMode = ScrollWheelInput::SCROLLMODE_INSTANT;
if (gfxPrefs::SmoothScrollEnabled() && gfxPrefs::WheelSmoothScrollEnabled()) {
scrollMode = ScrollWheelInput::SCROLLMODE_SMOOTH;
}
ScrollWheelInput wheelEvent(eventIntervalTime, eventTimeStamp, modifiers,
scrollMode,
ScrollWheelInput::SCROLLDELTA_LINE,
position,
lineOrPageDeltaX,
lineOrPageDeltaY);
wheelEvent.mLineOrPageDeltaX = lineOrPageDeltaX;
wheelEvent.mLineOrPageDeltaY = lineOrPageDeltaY;
mGeckoChild->DispatchAPZWheelInputEvent(wheelEvent, false);
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)handleAsyncScrollEvent:(CGEventRef)cgEvent ofType:(CGEventType)type
{
APZCTreeManager* apzctm = [self apzctm];
if (!apzctm) {
return;
}
CGPoint loc = CGEventGetLocation(cgEvent);
loc.y = nsCocoaUtils::FlippedScreenY(loc.y);
NSPoint locationInWindow = [[self window] convertScreenToBase:NSPointFromCGPoint(loc)];
ScreenIntPoint location = ScreenIntPoint::FromUnknownPoint([self convertWindowCoordinates:locationInWindow]);
static NSTimeInterval sStartTime = [NSDate timeIntervalSinceReferenceDate];
static TimeStamp sStartTimeStamp = TimeStamp::Now();
if (type == kCGEventScrollWheel) {
NSEvent* event = [NSEvent eventWithCGEvent:cgEvent];
NSEventPhase phase = nsCocoaUtils::EventPhase(event);
NSEventPhase momentumPhase = nsCocoaUtils::EventMomentumPhase(event);
CGFloat pixelDeltaX = 0, pixelDeltaY = 0;
nsCocoaUtils::GetScrollingDeltas(event, &pixelDeltaX, &pixelDeltaY);
uint32_t eventTime = ([event timestamp] - sStartTime) * 1000;
TimeStamp eventTimeStamp = sStartTimeStamp +
TimeDuration::FromSeconds([event timestamp] - sStartTime);
NSPoint locationInWindowMoved = NSMakePoint(
locationInWindow.x + pixelDeltaX,
locationInWindow.y - pixelDeltaY);
ScreenIntPoint locationMoved = ScreenIntPoint::FromUnknownPoint(
[self convertWindowCoordinates:locationInWindowMoved]);
ScreenPoint delta = ScreenPoint(locationMoved - location);
ScrollableLayerGuid guid;
// MayBegin and Cancelled are dispatched when the fingers start or stop
// touching the touchpad before any scrolling has occurred. These events
// can be used to control scrollbar visibility or interrupt scroll
// animations. They are only dispatched on 10.8 or later, and only by
// relatively modern devices.
if (phase == NSEventPhaseMayBegin) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_MAYSTART, eventTime,
eventTimeStamp, location, ScreenPoint(0, 0), 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
return;
}
if (phase == NSEventPhaseCancelled) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_CANCELLED, eventTime,
eventTimeStamp, location, ScreenPoint(0, 0), 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
return;
}
// Legacy scroll events are dispatched by devices that do not have a
// concept of a scroll gesture, for example by USB mice with
// traditional mouse wheels.
// For these kinds of scrolls, we want to surround every single scroll
// event with a PANGESTURE_START and a PANGESTURE_END event. The APZC
// needs to know that the real scroll gesture can end abruptly after any
// one of these events.
bool isLegacyScroll = (phase == NSEventPhaseNone &&
momentumPhase == NSEventPhaseNone && delta != ScreenPoint(0, 0));
if (phase == NSEventPhaseBegan || isLegacyScroll) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_START, eventTime,
eventTimeStamp, location, ScreenPoint(0, 0), 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
}
if (momentumPhase == NSEventPhaseNone && delta != ScreenPoint(0, 0)) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_PAN, eventTime,
eventTimeStamp, location, delta, 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
}
if (phase == NSEventPhaseEnded || isLegacyScroll) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_END, eventTime,
eventTimeStamp, location, ScreenPoint(0, 0), 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
}
// Any device that can dispatch momentum events supports all three momentum phases.
if (momentumPhase == NSEventPhaseBegan) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_MOMENTUMSTART, eventTime,
eventTimeStamp, location, ScreenPoint(0, 0), 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
}
if (momentumPhase == NSEventPhaseChanged && delta != ScreenPoint(0, 0)) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_MOMENTUMPAN, eventTime,
eventTimeStamp, location, delta, 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
}
if (momentumPhase == NSEventPhaseEnded) {
PanGestureInput panInput(PanGestureInput::PANGESTURE_MOMENTUMEND, eventTime,
eventTimeStamp, location, ScreenPoint(0, 0), 0);
apzctm->ReceiveInputEvent(panInput, &guid, nullptr);
}
}
}
-(NSMenu*)menuForEvent:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
if (!mGeckoChild)
return nil;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
[self maybeRollup:theEvent];
if (!mGeckoChild)
return nil;
// Cocoa doesn't always dispatch a mouseDown: for a control-click event,
// depends on what we return from menuForEvent:. Gecko always expects one
// and expects the mouse down event before the context menu event, so
// get that event sent first if this is a left mouse click.
if ([theEvent type] == NSLeftMouseDown) {
[self mouseDown:theEvent];
if (!mGeckoChild)
return nil;
}
WidgetMouseEvent geckoEvent(true, eContextMenu, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
geckoEvent.button = WidgetMouseEvent::eRightButton;
mGeckoChild->DispatchInputEvent(&geckoEvent);
if (!mGeckoChild)
return nil;
[self maybeInitContextMenuTracking];
// Go up our view chain to fetch the correct menu to return.
return [self contextMenu];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (NSMenu*)contextMenu
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
NSView* superView = [self superview];
if ([superView respondsToSelector:@selector(contextMenu)])
return [(NSView<mozView>*)superView contextMenu];
return nil;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (void) convertCocoaMouseWheelEvent:(NSEvent*)aMouseEvent
toGeckoEvent:(WidgetWheelEvent*)outWheelEvent
{
[self convertCocoaMouseEvent:aMouseEvent toGeckoEvent:outWheelEvent];
bool usePreciseDeltas = nsCocoaUtils::HasPreciseScrollingDeltas(aMouseEvent) &&
Preferences::GetBool("mousewheel.enable_pixel_scrolling", true);
outWheelEvent->deltaMode = usePreciseDeltas ? nsIDOMWheelEvent::DOM_DELTA_PIXEL
: nsIDOMWheelEvent::DOM_DELTA_LINE;
outWheelEvent->isMomentum = nsCocoaUtils::IsMomentumScrollEvent(aMouseEvent);
}
- (void) convertCocoaMouseEvent:(NSEvent*)aMouseEvent
toGeckoEvent:(WidgetInputEvent*)outGeckoEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ASSERTION(outGeckoEvent, "convertCocoaMouseEvent:toGeckoEvent: requires non-null aoutGeckoEvent");
if (!outGeckoEvent)
return;
nsCocoaUtils::InitInputEvent(*outGeckoEvent, aMouseEvent);
// convert point to view coordinate system
NSPoint locationInWindow = nsCocoaUtils::EventLocationForWindow(aMouseEvent, [self window]);
outGeckoEvent->refPoint = LayoutDeviceIntPoint::FromUnknownPoint(
[self convertWindowCoordinates:locationInWindow]);
WidgetMouseEventBase* mouseEvent = outGeckoEvent->AsMouseEventBase();
mouseEvent->buttons = 0;
NSUInteger mouseButtons = [NSEvent pressedMouseButtons];
if (mouseButtons & 0x01) {
mouseEvent->buttons |= WidgetMouseEvent::eLeftButtonFlag;
}
if (mouseButtons & 0x02) {
mouseEvent->buttons |= WidgetMouseEvent::eRightButtonFlag;
}
if (mouseButtons & 0x04) {
mouseEvent->buttons |= WidgetMouseEvent::eMiddleButtonFlag;
}
if (mouseButtons & 0x08) {
mouseEvent->buttons |= WidgetMouseEvent::e4thButtonFlag;
}
if (mouseButtons & 0x10) {
mouseEvent->buttons |= WidgetMouseEvent::e5thButtonFlag;
}
switch ([aMouseEvent type]) {
case NSLeftMouseDown:
case NSLeftMouseUp:
case NSLeftMouseDragged:
case NSRightMouseDown:
case NSRightMouseUp:
case NSRightMouseDragged:
case NSOtherMouseDown:
case NSOtherMouseUp:
case NSOtherMouseDragged:
if ([aMouseEvent subtype] == NSTabletPointEventSubtype) {
mouseEvent->pressure = [aMouseEvent pressure];
MOZ_ASSERT(mouseEvent->pressure >= 0.0 && mouseEvent->pressure <= 1.0);
}
break;
default:
// Don't check other NSEvents for pressure.
break;
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (BOOL)shouldZoomOnDoubleClick
{
if ([NSWindow respondsToSelector:@selector(_shouldZoomOnDoubleClick)]) {
return [NSWindow _shouldZoomOnDoubleClick];
}
return nsCocoaFeatures::OnYosemiteOrLater();
}
- (BOOL)shouldMinimizeOnTitlebarDoubleClick
{
NSString *MDAppleMiniaturizeOnDoubleClickKey =
@"AppleMiniaturizeOnDoubleClick";
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
bool shouldMinimize = [[userDefaults
objectForKey:MDAppleMiniaturizeOnDoubleClickKey] boolValue];
return shouldMinimize;
}
#pragma mark -
// NSTextInputClient implementation
- (NSRange)markedRange
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NS_ENSURE_TRUE(mTextInputHandler, NSMakeRange(NSNotFound, 0));
return mTextInputHandler->MarkedRange();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSMakeRange(0, 0));
}
- (NSRange)selectedRange
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NS_ENSURE_TRUE(mTextInputHandler, NSMakeRange(NSNotFound, 0));
return mTextInputHandler->SelectedRange();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSMakeRange(0, 0));
}
- (BOOL)drawsVerticallyForCharacterAtIndex:(NSUInteger)charIndex
{
NS_ENSURE_TRUE(mTextInputHandler, NO);
if (charIndex == NSNotFound) {
return NO;
}
return mTextInputHandler->DrawsVerticallyForCharacterAtIndex(charIndex);
}
- (NSUInteger)characterIndexForPoint:(NSPoint)thePoint
{
NS_ENSURE_TRUE(mTextInputHandler, 0);
return mTextInputHandler->CharacterIndexForPoint(thePoint);
}
- (NSArray*)validAttributesForMarkedText
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
NS_ENSURE_TRUE(mTextInputHandler, [NSArray array]);
return mTextInputHandler->GetValidAttributesForMarkedText();
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (void)insertText:(id)aString replacementRange:(NSRange)replacementRange
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ENSURE_TRUE_VOID(mGeckoChild);
nsAutoRetainCocoaObject kungFuDeathGrip(self);
NSAttributedString* attrStr;
if ([aString isKindOfClass:[NSAttributedString class]]) {
attrStr = static_cast<NSAttributedString*>(aString);
} else {
attrStr = [[[NSAttributedString alloc] initWithString:aString] autorelease];
}
mTextInputHandler->InsertText(attrStr, &replacementRange);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)doCommandBySelector:(SEL)aSelector
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mGeckoChild || !mTextInputHandler) {
return;
}
const char* sel = reinterpret_cast<const char*>(aSelector);
if (!mTextInputHandler->DoCommandBySelector(sel)) {
[super doCommandBySelector:aSelector];
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)unmarkText
{
NS_ENSURE_TRUE_VOID(mTextInputHandler);
mTextInputHandler->CommitIMEComposition();
}
- (BOOL) hasMarkedText
{
NS_ENSURE_TRUE(mTextInputHandler, NO);
return mTextInputHandler->HasMarkedText();
}
- (void)setMarkedText:(id)aString selectedRange:(NSRange)selectedRange
replacementRange:(NSRange)replacementRange
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ENSURE_TRUE_VOID(mTextInputHandler);
nsAutoRetainCocoaObject kungFuDeathGrip(self);
NSAttributedString* attrStr;
if ([aString isKindOfClass:[NSAttributedString class]]) {
attrStr = static_cast<NSAttributedString*>(aString);
} else {
attrStr = [[[NSAttributedString alloc] initWithString:aString] autorelease];
}
mTextInputHandler->SetMarkedText(attrStr, selectedRange, &replacementRange);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (NSAttributedString*)attributedSubstringForProposedRange:(NSRange)aRange
actualRange:(NSRangePointer)actualRange
{
NS_ENSURE_TRUE(mTextInputHandler, nil);
return mTextInputHandler->GetAttributedSubstringFromRange(aRange,
actualRange);
}
- (NSRect)firstRectForCharacterRange:(NSRange)aRange
actualRange:(NSRangePointer)actualRange
{
NS_ENSURE_TRUE(mTextInputHandler, NSMakeRect(0.0, 0.0, 0.0, 0.0));
return mTextInputHandler->FirstRectForCharacterRange(aRange, actualRange);
}
- (NSInteger)windowLevel
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NS_ENSURE_TRUE(mTextInputHandler, [[self window] level]);
return mTextInputHandler->GetWindowLevel();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSNormalWindowLevel);
}
#pragma mark -
// This is a private API that Cocoa uses.
// Cocoa will call this after the menu system returns "NO" for "performKeyEquivalent:".
// We want all they key events we can get so just return YES. In particular, this fixes
// ctrl-tab - we don't get a "keyDown:" call for that without this.
- (BOOL)_wantsKeyDownForEvent:(NSEvent*)event
{
return YES;
}
- (NSEvent*)lastKeyDownEvent
{
return mLastKeyDownEvent;
}
- (void)keyDown:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[mLastKeyDownEvent release];
mLastKeyDownEvent = [theEvent retain];
// Weird things can happen on keyboard input if the key window isn't in the
// current space. For example see bug 1056251. To get around this, always
// make sure that, if our window is key, it's also made frontmost. Doing
// this automatically switches to whatever space our window is in. Safari
// does something similar. Our window should normally always be key --
// otherwise why is the OS sending us a key down event? But it's just
// possible we're in Gecko's hidden window, so we check first.
NSWindow *viewWindow = [self window];
if (viewWindow && [viewWindow isKeyWindow]) {
[viewWindow orderWindow:NSWindowAbove relativeTo:0];
}
#if !defined(RELEASE_BUILD) || defined(DEBUG)
if (!Preferences::GetBool("intl.allow-insecure-text-input", false) &&
mGeckoChild && mTextInputHandler && mTextInputHandler->IsFocused()) {
#ifdef MOZ_CRASHREPORTER
NSWindow* window = [self window];
NSString* info = [NSString stringWithFormat:@"\nview [%@], window [%@], window is key %i, is fullscreen %i, app is active %i",
self, window, [window isKeyWindow], ([window styleMask] & (1 << 14)) != 0,
[NSApp isActive]];
nsAutoCString additionalInfo([info UTF8String]);
#endif
if (mGeckoChild->GetInputContext().IsPasswordEditor() &&
!TextInputHandler::IsSecureEventInputEnabled()) {
#define CRASH_MESSAGE "A password editor has focus, but not in secure input mode"
#ifdef MOZ_CRASHREPORTER
CrashReporter::AppendAppNotesToCrashReport(NS_LITERAL_CSTRING("\nBug 893973: ") +
NS_LITERAL_CSTRING(CRASH_MESSAGE));
CrashReporter::AppendAppNotesToCrashReport(additionalInfo);
#endif
MOZ_CRASH(CRASH_MESSAGE);
#undef CRASH_MESSAGE
} else if (!mGeckoChild->GetInputContext().IsPasswordEditor() &&
TextInputHandler::IsSecureEventInputEnabled()) {
#define CRASH_MESSAGE "A non-password editor has focus, but in secure input mode"
#ifdef MOZ_CRASHREPORTER
CrashReporter::AppendAppNotesToCrashReport(NS_LITERAL_CSTRING("\nBug 893973: ") +
NS_LITERAL_CSTRING(CRASH_MESSAGE));
CrashReporter::AppendAppNotesToCrashReport(additionalInfo);
#endif
MOZ_CRASH(CRASH_MESSAGE);
#undef CRASH_MESSAGE
}
}
#endif // #if !defined(RELEASE_BUILD) || defined(DEBUG)
nsAutoRetainCocoaObject kungFuDeathGrip(self);
bool handled = false;
if (mGeckoChild && mTextInputHandler) {
handled = mTextInputHandler->HandleKeyDownEvent(theEvent);
}
// We always allow keyboard events to propagate to keyDown: but if they are not
// handled we give special Application menu items a chance to act.
if (!handled && sApplicationMenu) {
[sApplicationMenu performKeyEquivalent:theEvent];
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)keyUp:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ENSURE_TRUE(mGeckoChild, );
nsAutoRetainCocoaObject kungFuDeathGrip(self);
mTextInputHandler->HandleKeyUpEvent(theEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)insertNewline:(id)sender
{
if (mTextInputHandler) {
NSAttributedString *attrStr = [[NSAttributedString alloc] initWithString:@"\n"];
mTextInputHandler->InsertText(attrStr);
[attrStr release];
}
}
- (void)flagsChanged:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
NS_ENSURE_TRUE(mGeckoChild, );
nsAutoRetainCocoaObject kungFuDeathGrip(self);
mTextInputHandler->HandleFlagsChanged(theEvent);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (BOOL) isFirstResponder
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NSResponder* resp = [[self window] firstResponder];
return (resp == (NSResponder*)self);
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
- (BOOL)isDragInProgress
{
if (!mDragService)
return NO;
nsCOMPtr<nsIDragSession> dragSession;
mDragService->GetCurrentSession(getter_AddRefs(dragSession));
return dragSession != nullptr;
}
- (BOOL)inactiveWindowAcceptsMouseEvent:(NSEvent*)aEvent
{
// If we're being destroyed assume the default -- return YES.
if (!mGeckoChild)
return YES;
WidgetMouseEvent geckoEvent(true, eMouseActivate, mGeckoChild,
WidgetMouseEvent::eReal);
[self convertCocoaMouseEvent:aEvent toGeckoEvent:&geckoEvent];
return (mGeckoChild->DispatchInputEvent(&geckoEvent) != nsEventStatus_eConsumeNoDefault);
}
// We must always call through to our superclass, even when mGeckoChild is
// nil -- otherwise the keyboard focus can end up in the wrong NSView.
- (BOOL)becomeFirstResponder
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
return [super becomeFirstResponder];
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(YES);
}
- (void)viewsWindowDidBecomeKey
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (!mGeckoChild)
return;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
// check to see if the window implements the mozWindow protocol. This
// allows embedders to avoid re-entrant calls to -makeKeyAndOrderFront,
// which can happen because these activate calls propagate out
// to the embedder via nsIEmbeddingSiteWindow::SetFocus().
BOOL isMozWindow = [[self window] respondsToSelector:@selector(setSuppressMakeKeyFront:)];
if (isMozWindow)
[[self window] setSuppressMakeKeyFront:YES];
nsIWidgetListener* listener = mGeckoChild->GetWidgetListener();
if (listener)
listener->WindowActivated();
if (isMozWindow)
[[self window] setSuppressMakeKeyFront:NO];
if (mGeckoChild->GetInputContext().IsPasswordEditor()) {
TextInputHandler::EnableSecureEventInput();
} else {
TextInputHandler::EnsureSecureEventInputDisabled();
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)viewsWindowDidResignKey
{
if (!mGeckoChild)
return;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
nsIWidgetListener* listener = mGeckoChild->GetWidgetListener();
if (listener)
listener->WindowDeactivated();
TextInputHandler::EnsureSecureEventInputDisabled();
}
// If the call to removeFromSuperview isn't delayed from nsChildView::
// TearDownView(), the NSView hierarchy might get changed during calls to
// [ChildView drawRect:], which leads to "beyond bounds" exceptions in
// NSCFArray. For more info see bmo bug 373122. Apple's docs claim that
// removeFromSuperviewWithoutNeedingDisplay "can be safely invoked during
// display" (whatever "display" means). But it's _not_ true that it can be
// safely invoked during calls to [NSView drawRect:]. We use
// removeFromSuperview here because there's no longer any danger of being
// "invoked during display", and because doing do clears up bmo bug 384343.
- (void)delayedTearDown
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[self removeFromSuperview];
[self release];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
#pragma mark -
// drag'n'drop stuff
#define kDragServiceContractID "@mozilla.org/widget/dragservice;1"
- (NSDragOperation)dragOperationFromDragAction:(int32_t)aDragAction
{
if (nsIDragService::DRAGDROP_ACTION_LINK & aDragAction)
return NSDragOperationLink;
if (nsIDragService::DRAGDROP_ACTION_COPY & aDragAction)
return NSDragOperationCopy;
if (nsIDragService::DRAGDROP_ACTION_MOVE & aDragAction)
return NSDragOperationGeneric;
return NSDragOperationNone;
}
- (nsIntPoint)convertWindowCoordinates:(NSPoint)aPoint
{
if (!mGeckoChild) {
return nsIntPoint(0, 0);
}
NSPoint localPoint = [self convertPoint:aPoint fromView:nil];
return mGeckoChild->CocoaPointsToDevPixels(localPoint);
}
- (APZCTreeManager*)apzctm
{
return mGeckoChild ? mGeckoChild->APZCTM() : nullptr;
}
// This is a utility function used by NSView drag event methods
// to send events. It contains all of the logic needed for Gecko
// dragging to work. Returns the appropriate cocoa drag operation code.
- (NSDragOperation)doDragAction:(EventMessage)aMessage sender:(id)aSender
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (!mGeckoChild)
return NSDragOperationNone;
MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView doDragAction: entered\n"));
if (!mDragService) {
CallGetService(kDragServiceContractID, &mDragService);
NS_ASSERTION(mDragService, "Couldn't get a drag service - big problem!");
if (!mDragService)
return NSDragOperationNone;
}
if (aMessage == eDragEnter) {
mDragService->StartDragSession();
}
nsCOMPtr<nsIDragSession> dragSession;
mDragService->GetCurrentSession(getter_AddRefs(dragSession));
if (dragSession) {
if (aMessage == eDragOver) {
// fire the drag event at the source. Just ignore whether it was
// cancelled or not as there isn't actually a means to stop the drag
mDragService->FireDragEventAtSource(eDrag);
dragSession->SetCanDrop(false);
} else if (aMessage == eDrop) {
// We make the assumption that the dragOver handlers have correctly set
// the |canDrop| property of the Drag Session.
bool canDrop = false;
if (!NS_SUCCEEDED(dragSession->GetCanDrop(&canDrop)) || !canDrop) {
[self doDragAction:eDragExit sender:aSender];
nsCOMPtr<nsIDOMNode> sourceNode;
dragSession->GetSourceNode(getter_AddRefs(sourceNode));
if (!sourceNode) {
mDragService->EndDragSession(false);
}
return NSDragOperationNone;
}
}
unsigned int modifierFlags = [[NSApp currentEvent] modifierFlags];
uint32_t action = nsIDragService::DRAGDROP_ACTION_MOVE;
// force copy = option, alias = cmd-option, default is move
if (modifierFlags & NSAlternateKeyMask) {
if (modifierFlags & NSCommandKeyMask)
action = nsIDragService::DRAGDROP_ACTION_LINK;
else
action = nsIDragService::DRAGDROP_ACTION_COPY;
}
dragSession->SetDragAction(action);
}
// set up gecko event
WidgetDragEvent geckoEvent(true, aMessage, mGeckoChild);
nsCocoaUtils::InitInputEvent(geckoEvent, [NSApp currentEvent]);
// Use our own coordinates in the gecko event.
// Convert event from gecko global coords to gecko view coords.
NSPoint draggingLoc = [aSender draggingLocation];
geckoEvent.refPoint = LayoutDeviceIntPoint::FromUnknownPoint(
[self convertWindowCoordinates:draggingLoc]);
nsAutoRetainCocoaObject kungFuDeathGrip(self);
mGeckoChild->DispatchInputEvent(&geckoEvent);
if (!mGeckoChild)
return NSDragOperationNone;
if (dragSession) {
switch (aMessage) {
case eDragEnter:
case eDragOver: {
uint32_t dragAction;
dragSession->GetDragAction(&dragAction);
// If TakeChildProcessDragAction returns something other than
// DRAGDROP_ACTION_UNINITIALIZED, it means that the last event was sent
// to the child process and this event is also being sent to the child
// process. In this case, use the last event's action instead.
nsDragService* dragService = static_cast<nsDragService *>(mDragService);
int32_t childDragAction = dragService->TakeChildProcessDragAction();
if (childDragAction != nsIDragService::DRAGDROP_ACTION_UNINITIALIZED) {
dragAction = childDragAction;
}
return [self dragOperationFromDragAction:dragAction];
}
case eDragExit:
case eDrop: {
nsCOMPtr<nsIDOMNode> sourceNode;
dragSession->GetSourceNode(getter_AddRefs(sourceNode));
if (!sourceNode) {
// We're leaving a window while doing a drag that was
// initiated in a different app. End the drag session,
// since we're done with it for now (until the user
// drags back into mozilla).
mDragService->EndDragSession(false);
}
}
default:
break;
}
}
return NSDragOperationGeneric;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSDragOperationNone);
}
- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView draggingEntered: entered\n"));
// there should never be a globalDragPboard when "draggingEntered:" is
// called, but just in case we'll take care of it here.
[globalDragPboard release];
// Set the global drag pasteboard that will be used for this drag session.
// This will be set back to nil when the drag session ends (mouse exits
// the view or a drop happens within the view).
globalDragPboard = [[sender draggingPasteboard] retain];
return [self doDragAction:eDragEnter sender:sender];
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NSDragOperationNone);
}
- (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
{
MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView draggingUpdated: entered\n"));
return [self doDragAction:eDragOver sender:sender];
}
- (void)draggingExited:(id <NSDraggingInfo>)sender
{
MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView draggingExited: entered\n"));
nsAutoRetainCocoaObject kungFuDeathGrip(self);
[self doDragAction:eDragExit sender:sender];
NS_IF_RELEASE(mDragService);
}
- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
{
nsAutoRetainCocoaObject kungFuDeathGrip(self);
BOOL handled = [self doDragAction:eDrop sender:sender] != NSDragOperationNone;
NS_IF_RELEASE(mDragService);
return handled;
}
// NSDraggingSource
- (void)draggedImage:(NSImage *)anImage movedTo:(NSPoint)aPoint
{
// Get the drag service if it isn't already cached. The drag service
// isn't cached when dragging over a different application.
nsCOMPtr<nsIDragService> dragService = mDragService;
if (!dragService) {
dragService = do_GetService(kDragServiceContractID);
}
if (dragService) {
NSPoint pnt = [NSEvent mouseLocation];
FlipCocoaScreenCoordinate(pnt);
nsIntPoint devPoint = mGeckoChild->CocoaPointsToDevPixels(pnt);
dragService->DragMoved(devPoint.x, devPoint.y);
}
}
// NSDraggingSource
- (void)draggedImage:(NSImage *)anImage endedAt:(NSPoint)aPoint operation:(NSDragOperation)operation
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
gDraggedTransferables = nullptr;
NSEvent *currentEvent = [NSApp currentEvent];
gUserCancelledDrag = ([currentEvent type] == NSKeyDown &&
[currentEvent keyCode] == kVK_Escape);
if (!mDragService) {
CallGetService(kDragServiceContractID, &mDragService);
NS_ASSERTION(mDragService, "Couldn't get a drag service - big problem!");
}
if (mDragService) {
// set the dragend point from the current mouse location
nsDragService* dragService = static_cast<nsDragService *>(mDragService);
NSPoint pnt = [NSEvent mouseLocation];
FlipCocoaScreenCoordinate(pnt);
dragService->SetDragEndPoint(nsIntPoint(NSToIntRound(pnt.x), NSToIntRound(pnt.y)));
// XXX: dropEffect should be updated per |operation|.
// As things stand though, |operation| isn't well handled within "our"
// events, that is, when the drop happens within the window: it is set
// either to NSDragOperationGeneric or to NSDragOperationNone.
// For that reason, it's not yet possible to override dropEffect per the
// given OS value, and it's also unclear what's the correct dropEffect
// value for NSDragOperationGeneric that is passed by other applications.
// All that said, NSDragOperationNone is still reliable.
if (operation == NSDragOperationNone) {
nsCOMPtr<nsIDOMDataTransfer> dataTransfer;
dragService->GetDataTransfer(getter_AddRefs(dataTransfer));
if (dataTransfer)
dataTransfer->SetDropEffectInt(nsIDragService::DRAGDROP_ACTION_NONE);
}
mDragService->EndDragSession(true);
NS_RELEASE(mDragService);
}
[globalDragPboard release];
globalDragPboard = nil;
[gLastDragMouseDownEvent release];
gLastDragMouseDownEvent = nil;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
// NSDraggingSource
// this is just implemented so we comply with the NSDraggingSource informal protocol
- (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal
{
return UINT_MAX;
}
// This method is a callback typically invoked in response to a drag ending on the desktop
// or a Findow folder window; the argument passed is a path to the drop location, to be used
// in constructing a complete pathname for the file(s) we want to create as a result of
// the drag.
- (NSArray *)namesOfPromisedFilesDroppedAtDestination:(NSURL*)dropDestination
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
nsresult rv;
MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView namesOfPromisedFilesDroppedAtDestination: entering callback for promised files\n"));
nsCOMPtr<nsIFile> targFile;
NS_NewLocalFile(EmptyString(), true, getter_AddRefs(targFile));
nsCOMPtr<nsILocalFileMac> macLocalFile = do_QueryInterface(targFile);
if (!macLocalFile) {
NS_ERROR("No Mac local file");
return nil;
}
if (!NS_SUCCEEDED(macLocalFile->InitWithCFURL((CFURLRef)dropDestination))) {
NS_ERROR("failed InitWithCFURL");
return nil;
}
if (!gDraggedTransferables)
return nil;
uint32_t transferableCount;
rv = gDraggedTransferables->Count(&transferableCount);
if (NS_FAILED(rv))
return nil;
for (uint32_t i = 0; i < transferableCount; i++) {
nsCOMPtr<nsISupports> genericItem;
gDraggedTransferables->GetElementAt(i, getter_AddRefs(genericItem));
nsCOMPtr<nsITransferable> item(do_QueryInterface(genericItem));
if (!item) {
NS_ERROR("no transferable");
return nil;
}
item->SetTransferData(kFilePromiseDirectoryMime, macLocalFile, sizeof(nsIFile*));
// now request the kFilePromiseMime data, which will invoke the data provider
// If successful, the returned data is a reference to the resulting file.
nsCOMPtr<nsISupports> fileDataPrimitive;
uint32_t dataSize = 0;
item->GetTransferData(kFilePromiseMime, getter_AddRefs(fileDataPrimitive), &dataSize);
}
NSPasteboard* generalPboard = [NSPasteboard pasteboardWithName:NSDragPboard];
NSData* data = [generalPboard dataForType:@"application/x-moz-file-promise-dest-filename"];
NSString* name = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSArray* rslt = [NSArray arrayWithObject:name];
[name release];
return rslt;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
#pragma mark -
// Support for the "Services" menu. We currently only support sending strings
// and HTML to system services.
- (id)validRequestorForSendType:(NSString *)sendType
returnType:(NSString *)returnType
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
// sendType contains the type of data that the service would like this
// application to send to it. sendType is nil if the service is not
// requesting any data.
//
// returnType contains the type of data the the service would like to
// return to this application (e.g., to overwrite the selection).
// returnType is nil if the service will not return any data.
//
// The following condition thus triggers when the service expects a string
// or HTML from us or no data at all AND when the service will either not
// send back any data to us or will send a string or HTML back to us.
#define IsSupportedType(typeStr) ([typeStr isEqual:NSStringPboardType] || [typeStr isEqual:NSHTMLPboardType])
id result = nil;
if ((!sendType || IsSupportedType(sendType)) &&
(!returnType || IsSupportedType(returnType))) {
if (mGeckoChild) {
// Assume that this object will be able to handle this request.
result = self;
// Keep the ChildView alive during this operation.
nsAutoRetainCocoaObject kungFuDeathGrip(self);
// Determine if there is a selection (if sending to the service).
if (sendType) {
WidgetQueryContentEvent event(true, eQueryContentState, mGeckoChild);
// This might destroy our widget (and null out mGeckoChild).
mGeckoChild->DispatchWindowEvent(event);
if (!mGeckoChild || !event.mSucceeded || !event.mReply.mHasSelection)
result = nil;
}
// Determine if we can paste (if receiving data from the service).
if (mGeckoChild && returnType) {
WidgetContentCommandEvent command(true,
eContentCommandPasteTransferable,
mGeckoChild, true);
// This might possibly destroy our widget (and null out mGeckoChild).
mGeckoChild->DispatchWindowEvent(command);
if (!mGeckoChild || !command.mSucceeded || !command.mIsEnabled)
result = nil;
}
}
}
#undef IsSupportedType
// Give the superclass a chance if this object will not handle this request.
if (!result)
result = [super validRequestorForSendType:sendType returnType:returnType];
return result;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (BOOL)writeSelectionToPasteboard:(NSPasteboard *)pboard
types:(NSArray *)types
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
// Make sure that the service will accept strings or HTML.
if ([types containsObject:NSStringPboardType] == NO &&
[types containsObject:NSHTMLPboardType] == NO)
return NO;
// Bail out if there is no Gecko object.
if (!mGeckoChild)
return NO;
// Obtain the current selection.
WidgetQueryContentEvent event(true, eQuerySelectionAsTransferable,
mGeckoChild);
mGeckoChild->DispatchWindowEvent(event);
if (!event.mSucceeded || !event.mReply.mTransferable)
return NO;
// Transform the transferable to an NSDictionary.
NSDictionary* pasteboardOutputDict = nsClipboard::PasteboardDictFromTransferable(event.mReply.mTransferable);
if (!pasteboardOutputDict)
return NO;
// Declare the pasteboard types.
unsigned int typeCount = [pasteboardOutputDict count];
NSMutableArray* declaredTypes = [NSMutableArray arrayWithCapacity:typeCount];
[declaredTypes addObjectsFromArray:[pasteboardOutputDict allKeys]];
[pboard declareTypes:declaredTypes owner:nil];
// Write the data to the pasteboard.
for (unsigned int i = 0; i < typeCount; i++) {
NSString* currentKey = [declaredTypes objectAtIndex:i];
id currentValue = [pasteboardOutputDict valueForKey:currentKey];
if (currentKey == NSStringPboardType ||
currentKey == kCorePboardType_url ||
currentKey == kCorePboardType_urld ||
currentKey == kCorePboardType_urln) {
[pboard setString:currentValue forType:currentKey];
} else if (currentKey == NSHTMLPboardType) {
[pboard setString:(nsClipboard::WrapHtmlForSystemPasteboard(currentValue)) forType:currentKey];
} else if (currentKey == NSTIFFPboardType) {
[pboard setData:currentValue forType:currentKey];
} else if (currentKey == NSFilesPromisePboardType) {
[pboard setPropertyList:currentValue forType:currentKey];
}
}
return YES;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
// Called if the service wants us to replace the current selection.
- (BOOL)readSelectionFromPasteboard:(NSPasteboard *)pboard
{
nsresult rv;
nsCOMPtr<nsITransferable> trans = do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
if (NS_FAILED(rv))
return NO;
trans->Init(nullptr);
trans->AddDataFlavor(kUnicodeMime);
trans->AddDataFlavor(kHTMLMime);
rv = nsClipboard::TransferableFromPasteboard(trans, pboard);
if (NS_FAILED(rv))
return NO;
NS_ENSURE_TRUE(mGeckoChild, false);
WidgetContentCommandEvent command(true,
eContentCommandPasteTransferable,
mGeckoChild);
command.mTransferable = trans;
mGeckoChild->DispatchWindowEvent(command);
return command.mSucceeded && command.mIsEnabled;
}
#pragma mark -
#ifdef ACCESSIBILITY
/* Every ChildView has a corresponding mozDocAccessible object that is doing all
the heavy lifting. The topmost ChildView corresponds to a mozRootAccessible
object.
All ChildView needs to do is to route all accessibility calls (from the NSAccessibility APIs)
down to its object, pretending that they are the same.
*/
- (id<mozAccessible>)accessible
{
if (!mGeckoChild)
return nil;
id<mozAccessible> nativeAccessible = nil;
nsAutoRetainCocoaObject kungFuDeathGrip(self);
nsCOMPtr<nsIWidget> kungFuDeathGrip2(mGeckoChild);
RefPtr<a11y::Accessible> accessible = mGeckoChild->GetDocumentAccessible();
if (!accessible)
return nil;
accessible->GetNativeInterface((void**)&nativeAccessible);
#ifdef DEBUG_hakan
NSAssert(![nativeAccessible isExpired], @"native acc is expired!!!");
#endif
return nativeAccessible;
}
/* Implementation of formal mozAccessible formal protocol (enabling mozViews
to talk to mozAccessible objects in the accessibility module). */
- (BOOL)hasRepresentedView
{
return YES;
}
- (id)representedView
{
return self;
}
- (BOOL)isRoot
{
return [[self accessible] isRoot];
}
#ifdef DEBUG
- (void)printHierarchy
{
[[self accessible] printHierarchy];
}
#endif
#pragma mark -
// general
- (BOOL)accessibilityIsIgnored
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityIsIgnored];
return [[self accessible] accessibilityIsIgnored];
}
- (id)accessibilityHitTest:(NSPoint)point
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityHitTest:point];
return [[self accessible] accessibilityHitTest:point];
}
- (id)accessibilityFocusedUIElement
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityFocusedUIElement];
return [[self accessible] accessibilityFocusedUIElement];
}
// actions
- (NSArray*)accessibilityActionNames
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityActionNames];
return [[self accessible] accessibilityActionNames];
}
- (NSString*)accessibilityActionDescription:(NSString*)action
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityActionDescription:action];
return [[self accessible] accessibilityActionDescription:action];
}
- (void)accessibilityPerformAction:(NSString*)action
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityPerformAction:action];
return [[self accessible] accessibilityPerformAction:action];
}
// attributes
- (NSArray*)accessibilityAttributeNames
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityAttributeNames];
return [[self accessible] accessibilityAttributeNames];
}
- (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute
{
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityIsAttributeSettable:attribute];
return [[self accessible] accessibilityIsAttributeSettable:attribute];
}
- (id)accessibilityAttributeValue:(NSString*)attribute
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
if (!mozilla::a11y::ShouldA11yBeEnabled())
return [super accessibilityAttributeValue:attribute];
id<mozAccessible> accessible = [self accessible];
// if we're the root (topmost) accessible, we need to return our native AXParent as we
// traverse outside to the hierarchy of whoever embeds us. thus, fall back on NSView's
// default implementation for this attribute.
if ([attribute isEqualToString:NSAccessibilityParentAttribute] && [accessible isRoot]) {
id parentAccessible = [super accessibilityAttributeValue:attribute];
return parentAccessible;
}
return [accessible accessibilityAttributeValue:attribute];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
#endif /* ACCESSIBILITY */
@end
#pragma mark -
void
ChildViewMouseTracker::OnDestroyView(ChildView* aView)
{
if (sLastMouseEventView == aView) {
sLastMouseEventView = nil;
[sLastMouseMoveEvent release];
sLastMouseMoveEvent = nil;
}
}
void
ChildViewMouseTracker::OnDestroyWindow(NSWindow* aWindow)
{
if (sWindowUnderMouse == aWindow) {
sWindowUnderMouse = nil;
}
}
void
ChildViewMouseTracker::MouseEnteredWindow(NSEvent* aEvent)
{
sWindowUnderMouse = [aEvent window];
ReEvaluateMouseEnterState(aEvent);
}
void
ChildViewMouseTracker::MouseExitedWindow(NSEvent* aEvent)
{
if (sWindowUnderMouse == [aEvent window]) {
sWindowUnderMouse = nil;
ReEvaluateMouseEnterState(aEvent);
}
}
void
ChildViewMouseTracker::ReEvaluateMouseEnterState(NSEvent* aEvent, ChildView* aOldView)
{
ChildView* oldView = aOldView ? aOldView : sLastMouseEventView;
sLastMouseEventView = ViewForEvent(aEvent);
if (sLastMouseEventView != oldView) {
// Send enter and / or exit events.
WidgetMouseEvent::exitType type =
[sLastMouseEventView window] == [oldView window] ?
WidgetMouseEvent::eChild : WidgetMouseEvent::eTopLevel;
[oldView sendMouseEnterOrExitEvent:aEvent enter:NO type:type];
// After the cursor exits the window set it to a visible regular arrow cursor.
if (type == WidgetMouseEvent::eTopLevel) {
[[nsCursorManager sharedInstance] setCursor:eCursor_standard];
}
[sLastMouseEventView sendMouseEnterOrExitEvent:aEvent enter:YES type:type];
}
}
void
ChildViewMouseTracker::ResendLastMouseMoveEvent()
{
if (sLastMouseMoveEvent) {
MouseMoved(sLastMouseMoveEvent);
}
}
void
ChildViewMouseTracker::MouseMoved(NSEvent* aEvent)
{
MouseEnteredWindow(aEvent);
[sLastMouseEventView handleMouseMoved:aEvent];
if (sLastMouseMoveEvent != aEvent) {
[sLastMouseMoveEvent release];
sLastMouseMoveEvent = [aEvent retain];
}
}
void
ChildViewMouseTracker::MouseScrolled(NSEvent* aEvent)
{
if (!nsCocoaUtils::IsMomentumScrollEvent(aEvent)) {
// Store the position so we can pin future momentum scroll events.
sLastScrollEventScreenLocation = nsCocoaUtils::ScreenLocationForEvent(aEvent);
}
}
ChildView*
ChildViewMouseTracker::ViewForEvent(NSEvent* aEvent)
{
NSWindow* window = sWindowUnderMouse;
if (!window)
return nil;
NSPoint windowEventLocation = nsCocoaUtils::EventLocationForWindow(aEvent, window);
NSView* view = [[[window contentView] superview] hitTest:windowEventLocation];
if (![view isKindOfClass:[ChildView class]])
return nil;
ChildView* childView = (ChildView*)view;
// If childView is being destroyed return nil.
if (![childView widget])
return nil;
return WindowAcceptsEvent(window, aEvent, childView) ? childView : nil;
}
BOOL
ChildViewMouseTracker::WindowAcceptsEvent(NSWindow* aWindow, NSEvent* aEvent,
ChildView* aView, BOOL aIsClickThrough)
{
// Right mouse down events may get through to all windows, even to a top level
// window with an open sheet.
if (!aWindow || [aEvent type] == NSRightMouseDown)
return YES;
id delegate = [aWindow delegate];
if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]])
return YES;
nsIWidget *windowWidget = [(WindowDelegate *)delegate geckoWidget];
if (!windowWidget)
return YES;
NSWindow* topLevelWindow = nil;
switch (windowWidget->WindowType()) {
case eWindowType_popup:
// If this is a context menu, it won't have a parent. So we'll always
// accept mouse move events on context menus even when none of our windows
// is active, which is the right thing to do.
// For panels, the parent window is the XUL window that owns the panel.
return WindowAcceptsEvent([aWindow parentWindow], aEvent, aView, aIsClickThrough);
case eWindowType_toplevel:
case eWindowType_dialog:
if ([aWindow attachedSheet])
return NO;
topLevelWindow = aWindow;
break;
case eWindowType_sheet: {
nsIWidget* parentWidget = windowWidget->GetSheetWindowParent();
if (!parentWidget)
return YES;
topLevelWindow = (NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW);
break;
}
default:
return YES;
}
if (!topLevelWindow ||
([topLevelWindow isMainWindow] && !aIsClickThrough) ||
[aEvent type] == NSOtherMouseDown ||
(([aEvent modifierFlags] & NSCommandKeyMask) != 0 &&
[aEvent type] != NSMouseMoved))
return YES;
// If we're here then we're dealing with a left click or mouse move on an
// inactive window or something similar. Ask Gecko what to do.
return [aView inactiveWindowAcceptsMouseEvent:aEvent];
}
#pragma mark -
@interface EventThreadRunner(Private)
- (void)runEventThread;
- (void)shutdownAndReleaseCalledOnEventThread;
- (void)shutdownAndReleaseCalledOnAnyThread;
- (void)handleEvent:(CGEventRef)cgEvent type:(CGEventType)type;
@end
static EventThreadRunner* sEventThreadRunner = nil;
@implementation EventThreadRunner
+ (void)start
{
sEventThreadRunner = [[EventThreadRunner alloc] init];
}
+ (void)stop
{
if (sEventThreadRunner) {
[sEventThreadRunner shutdownAndReleaseCalledOnAnyThread];
sEventThreadRunner = nil;
}
}
- (id)init
{
if ((self = [super init])) {
mThread = nil;
[NSThread detachNewThreadSelector:@selector(runEventThread)
toTarget:self
withObject:nil];
}
return self;
}
static CGEventRef
HandleEvent(CGEventTapProxy aProxy, CGEventType aType,
CGEventRef aEvent, void* aClosure)
{
[(EventThreadRunner*)aClosure handleEvent:aEvent type:aType];
return aEvent;
}
- (void)runEventThread
{
char aLocal;
profiler_register_thread("APZC Event Thread", &aLocal);
PR_SetCurrentThreadName("APZC Event Thread");
mThread = [NSThread currentThread];
ProcessSerialNumber currentProcess;
GetCurrentProcess(&currentProcess);
CFMachPortRef eventPort =
CGEventTapCreateForPSN(&currentProcess,
kCGHeadInsertEventTap,
kCGEventTapOptionListenOnly,
CGEventMaskBit(kCGEventScrollWheel),
HandleEvent,
self);
CFRunLoopSourceRef eventPortSource =
CFMachPortCreateRunLoopSource(kCFAllocatorSystemDefault, eventPort, 0);
CFRunLoopAddSource(CFRunLoopGetCurrent(), eventPortSource, kCFRunLoopCommonModes);
CFRunLoopRun();
CFRunLoopRemoveSource(CFRunLoopGetCurrent(), eventPortSource, kCFRunLoopCommonModes);
CFRelease(eventPortSource);
CFRelease(eventPort);
[self release];
}
- (void)shutdownAndReleaseCalledOnEventThread
{
CFRunLoopStop(CFRunLoopGetCurrent());
}
- (void)shutdownAndReleaseCalledOnAnyThread
{
[self performSelector:@selector(shutdownAndReleaseCalledOnEventThread) onThread:mThread withObject:nil waitUntilDone:NO];
}
static const CGEventField kCGWindowNumberField = (const CGEventField) 51;
// Called on scroll thread
- (void)handleEvent:(CGEventRef)cgEvent type:(CGEventType)type
{
if (type != kCGEventScrollWheel) {
return;
}
int windowNumber = CGEventGetIntegerValueField(cgEvent, kCGWindowNumberField);
NSWindow* window = [NSApp windowWithWindowNumber:windowNumber];
if (!window || ![window isKindOfClass:[BaseWindow class]]) {
return;
}
ChildView* childView = [(BaseWindow*)window mainChildView];
[childView handleAsyncScrollEvent:cgEvent ofType:type];
}
@end
@interface NSView (MethodSwizzling)
- (BOOL)nsChildView_NSView_mouseDownCanMoveWindow;
@end
@implementation NSView (MethodSwizzling)
// All top-level browser windows belong to the ToolbarWindow class and have
// NSTexturedBackgroundWindowMask turned on in their "style" (see particularly
// [ToolbarWindow initWithContentRect:...] in nsCocoaWindow.mm). This style
// normally means the window "may be moved by clicking and dragging anywhere
// in the window background", but we've suppressed this by giving the
// ChildView class a mouseDownCanMoveWindow method that always returns NO.
// Normally a ToolbarWindow's contentView (not a ChildView) returns YES when
// NSTexturedBackgroundWindowMask is turned on. But normally this makes no
// difference. However, under some (probably very unusual) circumstances
// (and only on Leopard) it *does* make a difference -- for example it
// triggers bmo bugs 431902 and 476393. So here we make sure that a
// ToolbarWindow's contentView always returns NO from the
// mouseDownCanMoveWindow method.
- (BOOL)nsChildView_NSView_mouseDownCanMoveWindow
{
NSWindow *ourWindow = [self window];
NSView *contentView = [ourWindow contentView];
if ([ourWindow isKindOfClass:[ToolbarWindow class]] && (self == contentView))
return [ourWindow isMovableByWindowBackground];
return [self nsChildView_NSView_mouseDownCanMoveWindow];
}
@end
#ifdef __LP64__
// When using blocks, at least on OS X 10.7, the OS sometimes calls
// +[NSEvent removeMonitor:] more than once on a single event monitor, which
// causes crashes. See bug 678607. We hook these methods to work around
// the problem.
@interface NSEvent (MethodSwizzling)
+ (id)nsChildView_NSEvent_addLocalMonitorForEventsMatchingMask:(unsigned long long)mask handler:(id)block;
+ (void)nsChildView_NSEvent_removeMonitor:(id)eventMonitor;
@end
// This is a local copy of the AppKit frameworks sEventObservers hashtable.
// It only stores "local monitors". We use it to ensure that +[NSEvent
// removeMonitor:] is never called more than once on the same local monitor.
static NSHashTable *sLocalEventObservers = nil;
@implementation NSEvent (MethodSwizzling)
+ (id)nsChildView_NSEvent_addLocalMonitorForEventsMatchingMask:(unsigned long long)mask handler:(id)block
{
if (!sLocalEventObservers) {
sLocalEventObservers = [[NSHashTable hashTableWithOptions:
NSHashTableStrongMemory | NSHashTableObjectPointerPersonality] retain];
}
id retval =
[self nsChildView_NSEvent_addLocalMonitorForEventsMatchingMask:mask handler:block];
if (sLocalEventObservers && retval && ![sLocalEventObservers containsObject:retval]) {
[sLocalEventObservers addObject:retval];
}
return retval;
}
+ (void)nsChildView_NSEvent_removeMonitor:(id)eventMonitor
{
if (sLocalEventObservers && [eventMonitor isKindOfClass: ::NSClassFromString(@"_NSLocalEventObserver")]) {
if (![sLocalEventObservers containsObject:eventMonitor]) {
return;
}
[sLocalEventObservers removeObject:eventMonitor];
}
[self nsChildView_NSEvent_removeMonitor:eventMonitor];
}
@end
#endif // #ifdef __LP64__
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