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gecko-dev/widget/cocoa/nsCocoaWindow.mm
Gervase Markham 82ff7027aa Bug 716478 - update licence to MPL 2.
2012-05-21 12:12:37 +01:00

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/* -*- Mode: Objective-C++; 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 "nsCocoaWindow.h"
#include "nsObjCExceptions.h"
#include "nsCOMPtr.h"
#include "nsWidgetsCID.h"
#include "nsGUIEvent.h"
#include "nsIRollupListener.h"
#include "nsChildView.h"
#include "nsWindowMap.h"
#include "nsAppShell.h"
#include "nsIAppShellService.h"
#include "nsIBaseWindow.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIXULWindow.h"
#include "nsToolkit.h"
#include "nsIDOMWindow.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMElement.h"
#include "nsThreadUtils.h"
#include "nsMenuBarX.h"
#include "nsMenuUtilsX.h"
#include "nsStyleConsts.h"
#include "nsNativeThemeColors.h"
#include "nsChildView.h"
#include "nsCocoaFeatures.h"
#include "nsIScreenManager.h"
#include "gfxPlatform.h"
#include "qcms.h"
#include "mozilla/Preferences.h"
namespace mozilla {
namespace layers {
class LayerManager;
}
}
using namespace mozilla::layers;
using namespace mozilla;
// defined in nsAppShell.mm
extern nsCocoaAppModalWindowList *gCocoaAppModalWindowList;
PRInt32 gXULModalLevel = 0;
// In principle there should be only one app-modal window at any given time.
// But sometimes, despite our best efforts, another window appears above the
// current app-modal window. So we need to keep a linked list of app-modal
// windows. (A non-sheet window that appears above an app-modal window is
// also made app-modal.) See nsCocoaWindow::SetModal().
nsCocoaWindowList *gGeckoAppModalWindowList = NULL;
bool gConsumeRollupEvent;
// defined in nsMenuBarX.mm
extern NSMenu* sApplicationMenu; // Application menu shared by all menubars
// defined in nsChildView.mm
extern nsIRollupListener * gRollupListener;
extern nsIWidget * gRollupWidget;
extern BOOL gSomeMenuBarPainted;
extern "C" {
// CGSPrivate.h
typedef NSInteger CGSConnection;
typedef NSInteger CGSWindow;
typedef NSUInteger CGSWindowFilterRef;
extern CGSConnection _CGSDefaultConnection(void);
extern CGError CGSSetWindowShadowAndRimParameters(const CGSConnection cid, CGSWindow wid, float standardDeviation, float density, int offsetX, int offsetY, unsigned int flags);
extern CGError CGSNewCIFilterByName(CGSConnection cid, CFStringRef filterName, CGSWindowFilterRef *outFilter);
extern CGError CGSSetCIFilterValuesFromDictionary(CGSConnection cid, CGSWindowFilterRef filter, CFDictionaryRef filterValues);
extern CGError CGSAddWindowFilter(CGSConnection cid, CGSWindow wid, CGSWindowFilterRef filter, NSInteger flags);
extern CGError CGSRemoveWindowFilter(CGSConnection cid, CGSWindow wid, CGSWindowFilterRef filter);
extern CGError CGSReleaseCIFilter(CGSConnection cid, CGSWindowFilterRef filter);
}
#define NS_APPSHELLSERVICE_CONTRACTID "@mozilla.org/appshell/appShellService;1"
NS_IMPL_ISUPPORTS_INHERITED1(nsCocoaWindow, Inherited, nsPIWidgetCocoa)
// A note on testing to see if your object is a sheet...
// |mWindowType == eWindowType_sheet| is true if your gecko nsIWidget is a sheet
// widget - whether or not the sheet is showing. |[mWindow isSheet]| will return
// true *only when the sheet is actually showing*. Choose your test wisely.
// roll up any popup windows
static void RollUpPopups()
{
if (gRollupListener && gRollupWidget)
gRollupListener->Rollup(0);
}
nsCocoaWindow::nsCocoaWindow()
: mParent(nsnull)
, mWindow(nil)
, mDelegate(nil)
, mSheetWindowParent(nil)
, mPopupContentView(nil)
, mShadowStyle(NS_STYLE_WINDOW_SHADOW_DEFAULT)
, mWindowFilter(0)
, mAnimationType(nsIWidget::eGenericWindowAnimation)
, mWindowMadeHere(false)
, mSheetNeedsShow(false)
, mFullScreen(false)
, mInFullScreenTransition(false)
, mModal(false)
, mUsesNativeFullScreen(false)
, mIsAnimationSuppressed(false)
, mInReportMoveEvent(false)
, mNumModalDescendents(0)
{
}
void nsCocoaWindow::DestroyNativeWindow()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
CleanUpWindowFilter();
// We want to unhook the delegate here because we don't want events
// sent to it after this object has been destroyed.
[mWindow setDelegate:nil];
[mWindow close];
[mDelegate autorelease];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
nsCocoaWindow::~nsCocoaWindow()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Notify the children that we're gone. Popup windows (e.g. tooltips) can
// have nsChildView children. 'kid' is an nsChildView object if and only if
// its 'type' is 'eWindowType_child' or 'eWindowType_plugin'.
// 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;) {
nsWindowType kidType;
kid->GetWindowType(kidType);
if (kidType == eWindowType_child || kidType == eWindowType_plugin) {
nsChildView* childView = static_cast<nsChildView*>(kid);
kid = kid->GetPrevSibling();
childView->ResetParent();
} else {
nsCocoaWindow* childWindow = static_cast<nsCocoaWindow*>(kid);
childWindow->mParent = nsnull;
kid = kid->GetPrevSibling();
}
}
if (mWindow && mWindowMadeHere) {
DestroyNativeWindow();
}
NS_IF_RELEASE(mPopupContentView);
// Deal with the possiblity that we're being destroyed while running modal.
NS_ASSERTION(!mModal, "Widget destroyed while running modal!");
if (mModal) {
--gXULModalLevel;
NS_ASSERTION(gXULModalLevel >= 0, "Wierdness setting modality!");
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
static void FitRectToVisibleAreaForScreen(nsIntRect &aRect, NSScreen *screen)
{
if (!screen)
return;
nsIntRect screenBounds(nsCocoaUtils::CocoaRectToGeckoRect([screen visibleFrame]));
if (aRect.width > screenBounds.width) {
aRect.width = screenBounds.width;
}
if (aRect.height > screenBounds.height) {
aRect.height = screenBounds.height;
}
if (aRect.x - screenBounds.x + aRect.width > screenBounds.width) {
aRect.x += screenBounds.width - (aRect.x - screenBounds.x + aRect.width);
}
if (aRect.y - screenBounds.y + aRect.height > screenBounds.height) {
aRect.y += screenBounds.height - (aRect.y - screenBounds.y + aRect.height);
}
// If the left/top edge of the window is off the screen in either direction,
// then set the window to start at the left/top edge of the screen.
if (aRect.x < screenBounds.x || aRect.x > (screenBounds.x + screenBounds.width)) {
aRect.x = screenBounds.x;
}
if (aRect.y < screenBounds.y || aRect.y > (screenBounds.y + screenBounds.height)) {
aRect.y = screenBounds.y;
}
}
// Some applications like Camino use native popup windows
// (native context menus, native tooltips)
static bool UseNativePopupWindows()
{
#ifdef MOZ_USE_NATIVE_POPUP_WINDOWS
return true;
#else
return false;
#endif /* MOZ_USE_NATIVE_POPUP_WINDOWS */
}
nsresult nsCocoaWindow::Create(nsIWidget *aParent,
nsNativeWidget aNativeParent,
const nsIntRect &aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext *aContext,
nsWidgetInitData *aInitData)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// Because the hidden window is created outside of an event loop,
// we have to provide an autorelease pool (see bug 559075).
nsAutoreleasePool localPool;
// Find the screen that overlaps aRect the most,
// if none are found default to the mainScreen.
NSScreen *targetScreen = [NSScreen mainScreen];
NSArray *screens = [NSScreen screens];
if (screens) {
int largestIntersectArea = 0;
int i = [screens count];
while (i--) {
NSScreen *screen = [screens objectAtIndex:i];
nsIntRect screenBounds(nsCocoaUtils::CocoaRectToGeckoRect([screen visibleFrame]));
nsIntRegion intersect;
intersect.And(screenBounds, aRect);
int area = intersect.GetBounds().width * intersect.GetBounds().height;
if (area > largestIntersectArea) {
largestIntersectArea = area;
targetScreen = screen;
}
}
}
nsIntRect newBounds = aRect;
FitRectToVisibleAreaForScreen(newBounds, targetScreen);
// Set defaults which can be overriden from aInitData in BaseCreate
mWindowType = eWindowType_toplevel;
mBorderStyle = eBorderStyle_default;
// Ensure that the toolkit is created.
nsToolkit::GetToolkit();
Inherited::BaseCreate(aParent, newBounds, aHandleEventFunction, aContext,
aInitData);
mParent = aParent;
// Applications that use native popups don't want us to create popup windows.
if ((mWindowType == eWindowType_popup) && UseNativePopupWindows())
return NS_OK;
nsresult rv = CreateNativeWindow(nsCocoaUtils::GeckoRectToCocoaRect(newBounds),
mBorderStyle, false);
NS_ENSURE_SUCCESS(rv, rv);
if (mWindowType == eWindowType_popup) {
if (aInitData->mIsDragPopup) {
[mWindow setIgnoresMouseEvents:YES];
}
return CreatePopupContentView(newBounds, aHandleEventFunction, aContext);
}
mIsAnimationSuppressed = aInitData->mIsAnimationSuppressed;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
static unsigned int WindowMaskForBorderStyle(nsBorderStyle aBorderStyle)
{
bool allOrDefault = (aBorderStyle == eBorderStyle_all ||
aBorderStyle == eBorderStyle_default);
/* Apple's docs on NSWindow styles say that "a window's style mask should
* include NSTitledWindowMask if it includes any of the others [besides
* NSBorderlessWindowMask]". This implies that a borderless window
* shouldn't have any other styles than NSBorderlessWindowMask.
*/
if (!allOrDefault && !(aBorderStyle & eBorderStyle_title))
return NSBorderlessWindowMask;
unsigned int mask = NSTitledWindowMask;
if (allOrDefault || aBorderStyle & eBorderStyle_close)
mask |= NSClosableWindowMask;
if (allOrDefault || aBorderStyle & eBorderStyle_minimize)
mask |= NSMiniaturizableWindowMask;
if (allOrDefault || aBorderStyle & eBorderStyle_resizeh)
mask |= NSResizableWindowMask;
return mask;
}
NS_IMETHODIMP nsCocoaWindow::ReparentNativeWidget(nsIWidget* aNewParent)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
// If aRectIsFrameRect, aRect specifies the frame rect of the new window.
// Otherwise, aRect.x/y specify the position of the window's frame relative to
// the bottom of the menubar and aRect.width/height specify the size of the
// content rect.
nsresult nsCocoaWindow::CreateNativeWindow(const NSRect &aRect,
nsBorderStyle aBorderStyle,
bool aRectIsFrameRect)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We default to NSBorderlessWindowMask, add features if needed.
unsigned int features = NSBorderlessWindowMask;
// Configure the window we will create based on the window type.
switch (mWindowType)
{
case eWindowType_invisible:
case eWindowType_child:
case eWindowType_plugin:
break;
case eWindowType_popup:
if (aBorderStyle != eBorderStyle_default && mBorderStyle & eBorderStyle_title) {
features |= NSTitledWindowMask;
if (aBorderStyle & eBorderStyle_close) {
features |= NSClosableWindowMask;
}
}
break;
case eWindowType_toplevel:
case eWindowType_dialog:
features = WindowMaskForBorderStyle(aBorderStyle);
break;
case eWindowType_sheet:
nsWindowType parentType;
mParent->GetWindowType(parentType);
if (parentType != eWindowType_invisible &&
aBorderStyle & eBorderStyle_resizeh) {
features = NSResizableWindowMask;
}
else {
features = NSMiniaturizableWindowMask;
}
features |= NSTitledWindowMask;
break;
default:
NS_ERROR("Unhandled window type!");
return NS_ERROR_FAILURE;
}
NSRect contentRect;
if (aRectIsFrameRect) {
contentRect = [NSWindow contentRectForFrameRect:aRect styleMask:features];
} else {
/*
* We pass a content area rect to initialize the native Cocoa window. The
* content rect we give is the same size as the size we're given by gecko.
* The origin we're given for non-popup windows is moved down by the height
* of the menu bar so that an origin of (0,100) from gecko puts the window
* 100 pixels below the top of the available desktop area. We also move the
* origin down by the height of a title bar if it exists. This is so the
* origin that gecko gives us for the top-left of the window turns out to
* be the top-left of the window we create. This is how it was done in
* Carbon. If it ought to be different we'll probably need to look at all
* the callers.
*
* Note: This means that if you put a secondary screen on top of your main
* screen and open a window in the top screen, it'll be incorrectly shifted
* down by the height of the menu bar. Same thing would happen in Carbon.
*
* Note: If you pass a rect with 0,0 for an origin, the window ends up in a
* weird place for some reason. This stops that without breaking popups.
*/
// Compensate for difference between frame and content area height (e.g. title bar).
NSRect newWindowFrame = [NSWindow frameRectForContentRect:aRect styleMask:features];
contentRect = aRect;
contentRect.origin.y -= (newWindowFrame.size.height - aRect.size.height);
if (mWindowType != eWindowType_popup)
contentRect.origin.y -= [[NSApp mainMenu] menuBarHeight];
}
// NSLog(@"Top-level window being created at Cocoa rect: %f, %f, %f, %f\n",
// rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
Class windowClass = [BaseWindow class];
// If we have a titlebar on a top-level window, we want to be able to control the
// titlebar color (for unified windows), so use the special ToolbarWindow class.
// Note that we need to check the window type because we mark sheets as
// having titlebars.
if ((mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog) &&
(features & NSTitledWindowMask))
windowClass = [ToolbarWindow class];
// If we're a popup window we need to use the PopupWindow class.
else if (mWindowType == eWindowType_popup)
windowClass = [PopupWindow class];
// If we're a non-popup borderless window we need to use the
// BorderlessWindow class.
else if (features == NSBorderlessWindowMask)
windowClass = [BorderlessWindow class];
// Create the window
mWindow = [[windowClass alloc] initWithContentRect:contentRect styleMask:features
backing:NSBackingStoreBuffered defer:YES];
// Make sure that the content rect we gave has been honored.
NSRect wantedFrame = [mWindow frameRectForContentRect:contentRect];
if (!NSEqualRects([mWindow frame], wantedFrame)) {
// This can happen when the window is not on the primary screen.
[mWindow setFrame:wantedFrame display:NO];
}
UpdateBounds();
if (mWindowType == eWindowType_invisible) {
[mWindow setLevel:kCGDesktopWindowLevelKey];
} else if (mWindowType == eWindowType_popup) {
SetPopupWindowLevel();
[mWindow setHasShadow:YES];
}
[mWindow setBackgroundColor:[NSColor clearColor]];
[mWindow setOpaque:NO];
[mWindow setContentMinSize:NSMakeSize(60, 60)];
[mWindow disableCursorRects];
// setup our notification delegate. Note that setDelegate: does NOT retain.
mDelegate = [[WindowDelegate alloc] initWithGeckoWindow:this];
[mWindow setDelegate:mDelegate];
[[WindowDataMap sharedWindowDataMap] ensureDataForWindow:mWindow];
mWindowMadeHere = true;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::CreatePopupContentView(const nsIntRect &aRect,
EVENT_CALLBACK aHandleEventFunction,
nsDeviceContext *aContext)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We need to make our content view a ChildView.
mPopupContentView = new nsChildView();
if (!mPopupContentView)
return NS_ERROR_FAILURE;
NS_ADDREF(mPopupContentView);
nsIWidget* thisAsWidget = static_cast<nsIWidget*>(this);
mPopupContentView->Create(thisAsWidget, nsnull, aRect, aHandleEventFunction,
aContext, nsnull);
ChildView* newContentView = (ChildView*)mPopupContentView->GetNativeData(NS_NATIVE_WIDGET);
[mWindow setContentView:newContentView];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::Destroy()
{
if (mPopupContentView)
mPopupContentView->Destroy();
nsBaseWidget::Destroy();
nsBaseWidget::OnDestroy();
// On Lion we do not have to mess with the OS chrome when in Full Screen mode. So we
// can simply skip that. When the Window is destroyed, the OS will take care of removing
// the full screen 'Space' that was setup for us.
if (!mUsesNativeFullScreen && mFullScreen) {
nsCocoaUtils::HideOSChromeOnScreen(false, [mWindow screen]);
}
return NS_OK;
}
nsIWidget* nsCocoaWindow::GetSheetWindowParent(void)
{
if (mWindowType != eWindowType_sheet)
return nsnull;
nsCocoaWindow *parent = static_cast<nsCocoaWindow*>(mParent);
while (parent && (parent->mWindowType == eWindowType_sheet))
parent = static_cast<nsCocoaWindow*>(parent->mParent);
return parent;
}
void* nsCocoaWindow::GetNativeData(PRUint32 aDataType)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSNULL;
void* retVal = nsnull;
switch (aDataType) {
// to emulate how windows works, we always have to return a NSView
// for NS_NATIVE_WIDGET
case NS_NATIVE_WIDGET:
case NS_NATIVE_DISPLAY:
retVal = [mWindow contentView];
break;
case NS_NATIVE_WINDOW:
retVal = mWindow;
break;
case NS_NATIVE_GRAPHIC:
// There isn't anything that makes sense to return here,
// and it doesn't matter so just return nsnull.
NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a top-level window!");
break;
}
return retVal;
NS_OBJC_END_TRY_ABORT_BLOCK_NSNULL;
}
NS_IMETHODIMP nsCocoaWindow::IsVisible(bool & aState)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
aState = ([mWindow isVisible] || mSheetNeedsShow);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::SetModal(bool aState)
{
// This is used during startup (outside the event loop) when creating
// the add-ons compatibility checking dialog and the profile manager UI;
// therefore, it needs to provide an autorelease pool to avoid cocoa
// objects leaking.
nsAutoreleasePool localPool;
mModal = aState;
nsCocoaWindow *aParent = static_cast<nsCocoaWindow*>(mParent);
if (aState) {
++gXULModalLevel;
if (gCocoaAppModalWindowList)
gCocoaAppModalWindowList->PushGecko(mWindow, this);
// When a non-sheet window gets "set modal", make the window(s) that it
// appears over behave as they should. We can't rely on native methods to
// do this, for the following reason: The OS runs modal non-sheet windows
// in an event loop (using [NSApplication runModalForWindow:] or similar
// methods) that's incompatible with the modal event loop in nsXULWindow::
// ShowModal() (each of these event loops is "exclusive", and can't run at
// the same time as other (similar) event loops).
if (mWindowType != eWindowType_sheet) {
while (aParent) {
if (aParent->mNumModalDescendents++ == 0) {
NSWindow *aWindow = aParent->GetCocoaWindow();
if (aParent->mWindowType != eWindowType_invisible) {
[[aWindow standardWindowButton:NSWindowCloseButton] setEnabled:NO];
[[aWindow standardWindowButton:NSWindowMiniaturizeButton] setEnabled:NO];
[[aWindow standardWindowButton:NSWindowZoomButton] setEnabled:NO];
}
}
aParent = static_cast<nsCocoaWindow*>(aParent->mParent);
}
[mWindow setLevel:NSModalPanelWindowLevel];
nsCocoaWindowList *windowList = new nsCocoaWindowList;
if (windowList) {
windowList->window = this; // Don't ADDREF
windowList->prev = gGeckoAppModalWindowList;
gGeckoAppModalWindowList = windowList;
}
}
}
else {
--gXULModalLevel;
NS_ASSERTION(gXULModalLevel >= 0, "Mismatched call to nsCocoaWindow::SetModal(false)!");
if (gCocoaAppModalWindowList)
gCocoaAppModalWindowList->PopGecko(mWindow, this);
if (mWindowType != eWindowType_sheet) {
while (aParent) {
if (--aParent->mNumModalDescendents == 0) {
NSWindow *aWindow = aParent->GetCocoaWindow();
if (aParent->mWindowType != eWindowType_invisible) {
[[aWindow standardWindowButton:NSWindowCloseButton] setEnabled:YES];
[[aWindow standardWindowButton:NSWindowMiniaturizeButton] setEnabled:YES];
[[aWindow standardWindowButton:NSWindowZoomButton] setEnabled:YES];
}
}
NS_ASSERTION(aParent->mNumModalDescendents >= 0, "Widget hierarchy changed while modal!");
aParent = static_cast<nsCocoaWindow*>(aParent->mParent);
}
if (gGeckoAppModalWindowList) {
NS_ASSERTION(gGeckoAppModalWindowList->window == this, "Widget hierarchy changed while modal!");
nsCocoaWindowList *saved = gGeckoAppModalWindowList;
gGeckoAppModalWindowList = gGeckoAppModalWindowList->prev;
delete saved; // "window" not ADDREFed
}
if (mWindowType == eWindowType_popup)
SetPopupWindowLevel();
else
[mWindow setLevel:NSNormalWindowLevel];
}
}
return NS_OK;
}
// Hide or show this window
NS_IMETHODIMP nsCocoaWindow::Show(bool bState)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We need to re-execute sometimes in order to bring already-visible
// windows forward.
if (!mSheetNeedsShow && !bState && ![mWindow isVisible])
return NS_OK;
nsIWidget* parentWidget = mParent;
nsCOMPtr<nsPIWidgetCocoa> piParentWidget(do_QueryInterface(parentWidget));
NSWindow* nativeParentWindow = (parentWidget) ?
(NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW) : nil;
if (bState && !mBounds.IsEmpty()) {
if (mWindowType == eWindowType_sheet) {
// bail if no parent window (its basically what we do in Carbon)
if (!nativeParentWindow || !piParentWidget)
return NS_ERROR_FAILURE;
NSWindow* topNonSheetWindow = nativeParentWindow;
// If this sheet is the child of another sheet, hide the parent so that
// this sheet can be displayed. Leave the parent mSheetNeedsShow alone,
// that is only used to handle sibling sheet contention. The parent will
// return once there are no more child sheets.
bool parentIsSheet = false;
if (NS_SUCCEEDED(piParentWidget->GetIsSheet(&parentIsSheet)) &&
parentIsSheet) {
piParentWidget->GetSheetWindowParent(&topNonSheetWindow);
[NSApp endSheet:nativeParentWindow];
}
nsCocoaWindow* sheetShown = nsnull;
if (NS_SUCCEEDED(piParentWidget->GetChildSheet(true, &sheetShown)) &&
(!sheetShown || sheetShown == this)) {
// If this sheet is already the sheet actually being shown, don't
// tell it to show again. Otherwise the number of calls to
// [NSApp beginSheet...] won't match up with [NSApp endSheet...].
if (![mWindow isVisible]) {
mSheetNeedsShow = false;
mSheetWindowParent = topNonSheetWindow;
// Only set contextInfo if our parent isn't a sheet.
NSWindow* contextInfo = parentIsSheet ? nil : mSheetWindowParent;
[TopLevelWindowData deactivateInWindow:mSheetWindowParent];
[NSApp beginSheet:mWindow
modalForWindow:mSheetWindowParent
modalDelegate:mDelegate
didEndSelector:@selector(didEndSheet:returnCode:contextInfo:)
contextInfo:contextInfo];
[TopLevelWindowData activateInWindow:mWindow];
SendSetZLevelEvent();
}
}
else {
// A sibling of this sheet is active, don't show this sheet yet.
// When the active sheet hides, its brothers and sisters that have
// mSheetNeedsShow set will have their opportunities to display.
mSheetNeedsShow = true;
}
}
else if (mWindowType == eWindowType_popup) {
// If a popup window is shown after being hidden, it needs to be "reset"
// for it to receive any mouse events aside from mouse-moved events
// (because it was removed from the "window cache" when it was hidden
// -- see below). Setting the window number to -1 and then back to its
// original value seems to accomplish this. The idea was "borrowed"
// from the Java Embedding Plugin.
NSInteger windowNumber = [mWindow windowNumber];
[mWindow _setWindowNumber:-1];
[mWindow _setWindowNumber:windowNumber];
// For reasons that aren't yet clear, calls to [NSWindow orderFront:] or
// [NSWindow makeKeyAndOrderFront:] can sometimes trigger "Error (1000)
// creating CGSWindow", which in turn triggers an internal inconsistency
// NSException. These errors shouldn't be fatal. So we need to wrap
// calls to ...orderFront: in LOGONLY blocks. See bmo bug 470864.
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK;
[mWindow orderFront:nil];
NS_OBJC_END_TRY_LOGONLY_BLOCK;
SendSetZLevelEvent();
AdjustWindowShadow();
SetUpWindowFilter();
// If our popup window is a non-native context menu, tell the OS (and
// other programs) that a menu has opened. This is how the OS knows to
// close other programs' context menus when ours open.
if ([mWindow isKindOfClass:[PopupWindow class]] &&
[(PopupWindow*) mWindow isContextMenu]) {
[[NSDistributedNotificationCenter defaultCenter]
postNotificationName:@"com.apple.HIToolbox.beginMenuTrackingNotification"
object:@"org.mozilla.gecko.PopupWindow"];
}
// If a parent window was supplied and this is a popup at the parent
// level, set its child window. This will cause the child window to
// appear above the parent and move when the parent does. Setting this
// needs to happen after the _setWindowNumber calls above, otherwise the
// window doesn't focus properly.
if (nativeParentWindow && mPopupLevel == ePopupLevelParent)
[nativeParentWindow addChildWindow:mWindow
ordered:NSWindowAbove];
}
else {
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK;
if (mWindowType == eWindowType_toplevel &&
[mWindow respondsToSelector:@selector(setAnimationBehavior:)]) {
NSWindowAnimationBehavior behavior;
if (mIsAnimationSuppressed) {
behavior = NSWindowAnimationBehaviorNone;
} else {
switch (mAnimationType) {
case nsIWidget::eDocumentWindowAnimation:
behavior = NSWindowAnimationBehaviorDocumentWindow;
break;
default:
NS_NOTREACHED("unexpected mAnimationType value");
// fall through
case nsIWidget::eGenericWindowAnimation:
behavior = NSWindowAnimationBehaviorDefault;
break;
}
}
[mWindow setAnimationBehavior:behavior];
}
[mWindow makeKeyAndOrderFront:nil];
NS_OBJC_END_TRY_LOGONLY_BLOCK;
SendSetZLevelEvent();
}
}
else {
// roll up any popups if a top-level window is going away
if (mWindowType == eWindowType_toplevel || mWindowType == eWindowType_dialog)
RollUpPopups();
// now get rid of the window/sheet
if (mWindowType == eWindowType_sheet) {
if (mSheetNeedsShow) {
// This is an attempt to hide a sheet that never had a chance to
// be shown. There's nothing to do other than make sure that it
// won't show.
mSheetNeedsShow = false;
}
else {
// get sheet's parent *before* hiding the sheet (which breaks the linkage)
NSWindow* sheetParent = mSheetWindowParent;
// hide the sheet
[NSApp endSheet:mWindow];
[TopLevelWindowData deactivateInWindow:mWindow];
nsCocoaWindow* siblingSheetToShow = nsnull;
bool parentIsSheet = false;
if (nativeParentWindow && piParentWidget &&
NS_SUCCEEDED(piParentWidget->GetChildSheet(false, &siblingSheetToShow)) &&
siblingSheetToShow) {
// First, give sibling sheets an opportunity to show.
siblingSheetToShow->Show(true);
}
else if (nativeParentWindow && piParentWidget &&
NS_SUCCEEDED(piParentWidget->GetIsSheet(&parentIsSheet)) &&
parentIsSheet) {
// Only set contextInfo if the parent of the parent sheet we're about
// to restore isn't itself a sheet.
NSWindow* contextInfo = sheetParent;
nsIWidget* grandparentWidget = nil;
if (NS_SUCCEEDED(piParentWidget->GetRealParent(&grandparentWidget)) && grandparentWidget) {
nsCOMPtr<nsPIWidgetCocoa> piGrandparentWidget(do_QueryInterface(grandparentWidget));
bool grandparentIsSheet = false;
if (piGrandparentWidget && NS_SUCCEEDED(piGrandparentWidget->GetIsSheet(&grandparentIsSheet)) &&
grandparentIsSheet) {
contextInfo = nil;
}
}
// If there are no sibling sheets, but the parent is a sheet, restore
// it. It wasn't sent any deactivate events when it was hidden, so
// don't call through Show, just let the OS put it back up.
[NSApp beginSheet:nativeParentWindow
modalForWindow:sheetParent
modalDelegate:[nativeParentWindow delegate]
didEndSelector:@selector(didEndSheet:returnCode:contextInfo:)
contextInfo:contextInfo];
}
else {
// Sheet, that was hard. No more siblings or parents, going back
// to a real window.
NS_OBJC_BEGIN_TRY_LOGONLY_BLOCK;
[sheetParent makeKeyAndOrderFront:nil];
NS_OBJC_END_TRY_LOGONLY_BLOCK;
}
SendSetZLevelEvent();
}
}
else {
// If the window is a popup window with a parent window we need to
// unhook it here before ordering it out. When you order out the child
// of a window it hides the parent window.
if (mWindowType == eWindowType_popup && nativeParentWindow)
[nativeParentWindow removeChildWindow:mWindow];
CleanUpWindowFilter();
[mWindow orderOut:nil];
// Unless it's explicitly removed from NSApp's "window cache", a popup
// window will keep receiving mouse-moved events even after it's been
// "ordered out" (instead of the browser window that was underneath it,
// until you click on that window). This is bmo bug 378645, but it's
// surely an Apple bug. The "window cache" is an undocumented subsystem,
// all of whose methods are included in the NSWindowCache category of
// the NSApplication class (in header files generated using class-dump).
// This workaround was "borrowed" from the Java Embedding Plugin (which
// uses it for a different purpose).
if (mWindowType == eWindowType_popup)
[NSApp _removeWindowFromCache:mWindow];
// If our popup window is a non-native context menu, tell the OS (and
// other programs) that a menu has closed.
if ([mWindow isKindOfClass:[PopupWindow class]] &&
[(PopupWindow*) mWindow isContextMenu]) {
[[NSDistributedNotificationCenter defaultCenter]
postNotificationName:@"com.apple.HIToolbox.endMenuTrackingNotification"
object:@"org.mozilla.gecko.PopupWindow"];
}
}
}
if (mPopupContentView)
mPopupContentView->Show(bState);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
struct ShadowParams {
float standardDeviation;
float density;
int offsetX;
int offsetY;
unsigned int flags;
};
// These numbers have been determined by looking at the results of
// CGSGetWindowShadowAndRimParameters for native window types.
static const ShadowParams kWindowShadowParameters[] = {
{ 0.0f, 0.0f, 0, 0, 0 }, // none
{ 8.0f, 0.5f, 0, 6, 1 }, // default
{ 10.0f, 0.44f, 0, 10, 512 }, // menu
{ 8.0f, 0.5f, 0, 6, 1 }, // tooltip
{ 4.0f, 0.6f, 0, 4, 512 } // sheet
};
// This method will adjust the window shadow style for popup windows after
// they have been made visible. Before they're visible, their window number
// might be -1, which is not useful.
// We won't attempt to change the shadow for windows that can acquire key state
// since OS X will reset the shadow whenever that happens.
void
nsCocoaWindow::AdjustWindowShadow()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (![mWindow isVisible] || ![mWindow hasShadow] ||
[mWindow canBecomeKeyWindow] || [mWindow windowNumber] == -1)
return;
const ShadowParams& params = kWindowShadowParameters[mShadowStyle];
CGSConnection cid = _CGSDefaultConnection();
CGSSetWindowShadowAndRimParameters(cid, [mWindow windowNumber],
params.standardDeviation, params.density,
params.offsetX, params.offsetY,
params.flags);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
nsCocoaWindow::SetUpWindowFilter()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (![mWindow isVisible] || [mWindow windowNumber] == -1)
return;
CleanUpWindowFilter();
// Only blur the background of menus and fake sheets, but not on PPC
// because it results in blank windows (bug 547723).
#ifndef __ppc__
if (mShadowStyle != NS_STYLE_WINDOW_SHADOW_MENU &&
mShadowStyle != NS_STYLE_WINDOW_SHADOW_SHEET)
#endif
return;
// Create a CoreImage filter and set it up
CGSConnection cid = _CGSDefaultConnection();
CGSNewCIFilterByName(cid, (CFStringRef)@"CIGaussianBlur", &mWindowFilter);
NSDictionary *options = [NSDictionary dictionaryWithObject:[NSNumber numberWithFloat:2.0] forKey:@"inputRadius"];
CGSSetCIFilterValuesFromDictionary(cid, mWindowFilter, (CFDictionaryRef)options);
// Now apply the filter to the window
NSInteger compositingType = 1 << 0; // Under the window
CGSAddWindowFilter(cid, [mWindow windowNumber], mWindowFilter, compositingType);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
nsCocoaWindow::CleanUpWindowFilter()
{
if (!mWindowFilter || [mWindow windowNumber] == -1)
return;
CGSConnection cid = _CGSDefaultConnection();
CGSRemoveWindowFilter(cid, [mWindow windowNumber], mWindowFilter);
CGSReleaseCIFilter(cid, mWindowFilter);
mWindowFilter = 0;
}
nsresult
nsCocoaWindow::ConfigureChildren(const nsTArray<Configuration>& aConfigurations)
{
if (mPopupContentView) {
mPopupContentView->ConfigureChildren(aConfigurations);
}
return NS_OK;
}
LayerManager*
nsCocoaWindow::GetLayerManager(PLayersChild* aShadowManager,
LayersBackend aBackendHint,
LayerManagerPersistence aPersistence,
bool* aAllowRetaining)
{
if (mPopupContentView) {
return mPopupContentView->GetLayerManager(aShadowManager,
aBackendHint,
aPersistence,
aAllowRetaining);
}
return nsnull;
}
nsTransparencyMode nsCocoaWindow::GetTransparencyMode()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
return [mWindow isOpaque] ? eTransparencyOpaque : eTransparencyTransparent;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(eTransparencyOpaque);
}
// This is called from nsMenuPopupFrame when making a popup transparent.
// For other window types, nsChildView::SetTransparencyMode is used.
void nsCocoaWindow::SetTransparencyMode(nsTransparencyMode aMode)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
BOOL isTransparent = aMode == eTransparencyTransparent;
BOOL currentTransparency = ![mWindow isOpaque];
if (isTransparent != currentTransparency) {
[mWindow setOpaque:!isTransparent];
[mWindow setBackgroundColor:(isTransparent ? [NSColor clearColor] : [NSColor whiteColor])];
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
NS_IMETHODIMP nsCocoaWindow::Enable(bool aState)
{
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::IsEnabled(bool *aState)
{
if (aState)
*aState = true;
return NS_OK;
}
#define kWindowPositionSlop 20
NS_IMETHODIMP nsCocoaWindow::ConstrainPosition(bool aAllowSlop,
PRInt32 *aX, PRInt32 *aY)
{
if (!mWindow || ![mWindow screen]) {
return NS_OK;
}
nsIntRect screenBounds;
nsCOMPtr<nsIScreenManager> screenMgr = do_GetService("@mozilla.org/gfx/screenmanager;1");
if (screenMgr) {
nsCOMPtr<nsIScreen> screen;
PRInt32 width, height;
// zero size rects confuse the screen manager
width = mBounds.width > 0 ? mBounds.width : 1;
height = mBounds.height > 0 ? mBounds.height : 1;
screenMgr->ScreenForRect(*aX, *aY, width, height, getter_AddRefs(screen));
if (screen) {
screen->GetRect(&(screenBounds.x), &(screenBounds.y),
&(screenBounds.width), &(screenBounds.height));
}
}
if (aAllowSlop) {
if (*aX < screenBounds.x - mBounds.width + kWindowPositionSlop) {
*aX = screenBounds.x - mBounds.width + kWindowPositionSlop;
} else if (*aX >= screenBounds.x + screenBounds.width - kWindowPositionSlop) {
*aX = screenBounds.x + screenBounds.width - kWindowPositionSlop;
}
if (*aY < screenBounds.y - mBounds.height + kWindowPositionSlop) {
*aY = screenBounds.y - mBounds.height + kWindowPositionSlop;
} else if (*aY >= screenBounds.y + screenBounds.height - kWindowPositionSlop) {
*aY = screenBounds.y + screenBounds.height - kWindowPositionSlop;
}
} else {
if (*aX < screenBounds.x) {
*aX = screenBounds.x;
} else if (*aX >= screenBounds.x + screenBounds.width - mBounds.width) {
*aX = screenBounds.x + screenBounds.width - mBounds.width;
}
if (*aY < screenBounds.y) {
*aY = screenBounds.y;
} else if (*aY >= screenBounds.y + screenBounds.height - mBounds.height) {
*aY = screenBounds.y + screenBounds.height - mBounds.height;
}
}
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::Move(PRInt32 aX, PRInt32 aY)
{
if (!mWindow || (mBounds.x == aX && mBounds.y == aY))
return NS_OK;
// The point we have is in Gecko coordinates (origin top-left). Convert
// it to Cocoa ones (origin bottom-left).
NSPoint coord = {static_cast<CGFloat>(aX), nsCocoaUtils::FlippedScreenY(aY)};
[mWindow setFrameTopLeftPoint:coord];
return NS_OK;
}
// Position the window behind the given window
NS_METHOD nsCocoaWindow::PlaceBehind(nsTopLevelWidgetZPlacement aPlacement,
nsIWidget *aWidget, bool aActivate)
{
return NS_OK;
}
NS_METHOD nsCocoaWindow::SetSizeMode(PRInt32 aMode)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// mSizeMode will be updated in DispatchSizeModeEvent, which will be called
// from a delegate method that handles the state change during one of the
// calls below.
nsSizeMode previousMode = mSizeMode;
if (aMode == nsSizeMode_Normal) {
if ([mWindow isMiniaturized])
[mWindow deminiaturize:nil];
else if (previousMode == nsSizeMode_Maximized && [mWindow isZoomed])
[mWindow zoom:nil];
}
else if (aMode == nsSizeMode_Minimized) {
if (![mWindow isMiniaturized])
[mWindow miniaturize:nil];
}
else if (aMode == nsSizeMode_Maximized) {
if ([mWindow isMiniaturized])
[mWindow deminiaturize:nil];
if (![mWindow isZoomed])
[mWindow zoom:nil];
}
else if (aMode == nsSizeMode_Fullscreen) {
if (!mFullScreen)
MakeFullScreen(true);
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
// This has to preserve the window's frame bounds.
// This method requires (as does the Windows impl.) that you call Resize shortly
// after calling HideWindowChrome. See bug 498835 for fixing this.
NS_IMETHODIMP nsCocoaWindow::HideWindowChrome(bool aShouldHide)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (!mWindowMadeHere ||
(mWindowType != eWindowType_toplevel && mWindowType != eWindowType_dialog))
return NS_ERROR_FAILURE;
BOOL isVisible = [mWindow isVisible];
// Remove child windows.
NSArray* childWindows = [mWindow childWindows];
NSEnumerator* enumerator = [childWindows objectEnumerator];
NSWindow* child = nil;
while ((child = [enumerator nextObject])) {
[mWindow removeChildWindow:child];
}
// Remove the content view.
NSView* contentView = [mWindow contentView];
[contentView retain];
[contentView removeFromSuperviewWithoutNeedingDisplay];
// Save state (like window title).
NSMutableDictionary* state = [mWindow exportState];
// Recreate the window with the right border style.
NSRect frameRect = [mWindow frame];
DestroyNativeWindow();
nsresult rv = CreateNativeWindow(frameRect, aShouldHide ? eBorderStyle_none : mBorderStyle, true);
NS_ENSURE_SUCCESS(rv, rv);
// Re-import state.
[mWindow importState:state];
// Reparent the content view.
[mWindow setContentView:contentView];
[contentView release];
// Reparent child windows.
enumerator = [childWindows objectEnumerator];
while ((child = [enumerator nextObject])) {
[mWindow addChildWindow:child ordered:NSWindowAbove];
}
// Show the new window.
if (isVisible) {
rv = Show(true);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsCocoaWindow::EnteredFullScreen(bool aFullScreen)
{
mInFullScreenTransition = false;
mFullScreen = aFullScreen;
DispatchSizeModeEvent();
}
NS_METHOD nsCocoaWindow::MakeFullScreen(bool aFullScreen)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// We will call into MakeFullScreen redundantly when entering/exiting
// fullscreen mode via OS X controls. When that happens we should just handle
// it gracefully - no need to ASSERT.
if (mFullScreen == aFullScreen) {
return NS_OK;
}
mInFullScreenTransition = true;
if (mUsesNativeFullScreen) {
// Calling toggleFullScreen will result in windowDid(FailTo)?(Enter|Exit)FullScreen
// to be called from the OS. We will call EnteredFullScreen from those methods,
// where mFullScreen will be set and a sizemode event will be dispatched.
[mWindow toggleFullScreen:nil];
} else {
NSDisableScreenUpdates();
// The order here matters. When we exit full screen mode, we need to show the
// Dock first, otherwise the newly-created window won't have its minimize
// button enabled. See bug 526282.
nsCocoaUtils::HideOSChromeOnScreen(aFullScreen, [mWindow screen]);
nsresult rv = nsBaseWidget::MakeFullScreen(aFullScreen);
NSEnableScreenUpdates();
NS_ENSURE_SUCCESS(rv, rv);
EnteredFullScreen(aFullScreen);
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::Resize(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight, bool aRepaint)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsIntRect newBounds = nsIntRect(aX, aY, aWidth, aHeight);
FitRectToVisibleAreaForScreen(newBounds, [mWindow screen]);
BOOL isMoving = (mBounds.x != newBounds.x || mBounds.y != newBounds.y);
BOOL isResizing = (mBounds.width != newBounds.width || mBounds.height != newBounds.height);
if (!mWindow || (!isMoving && !isResizing))
return NS_OK;
NSRect newFrame = nsCocoaUtils::GeckoRectToCocoaRect(newBounds);
// We ignore aRepaint -- we have to call display:YES, otherwise the
// title bar doesn't immediately get repainted and is displayed in
// the wrong place, leading to a visual jump.
[mWindow setFrame:newFrame display:YES];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::Resize(PRInt32 aWidth, PRInt32 aHeight, bool aRepaint)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
return Resize(mBounds.x, mBounds.y, aWidth, aHeight, aRepaint);
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::GetClientBounds(nsIntRect &aRect)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if ([mWindow isKindOfClass:[ToolbarWindow class]] &&
[(ToolbarWindow*)mWindow drawsContentsIntoWindowFrame]) {
aRect = nsCocoaUtils::CocoaRectToGeckoRect([mWindow frame]);
} else {
NSRect contentRect = [mWindow contentRectForFrameRect:[mWindow frame]];
aRect = nsCocoaUtils::CocoaRectToGeckoRect(contentRect);
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void
nsCocoaWindow::UpdateBounds()
{
mBounds = nsCocoaUtils::CocoaRectToGeckoRect([mWindow frame]);
}
NS_IMETHODIMP nsCocoaWindow::GetScreenBounds(nsIntRect &aRect)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
NS_ASSERTION(mBounds == nsCocoaUtils::CocoaRectToGeckoRect([mWindow frame]),
"mBounds out of sync!");
aRect = mBounds;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::SetCursor(nsCursor aCursor)
{
if (mPopupContentView)
return mPopupContentView->SetCursor(aCursor);
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::SetCursor(imgIContainer* aCursor,
PRUint32 aHotspotX, PRUint32 aHotspotY)
{
if (mPopupContentView)
return mPopupContentView->SetCursor(aCursor, aHotspotX, aHotspotY);
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::SetTitle(const nsAString& aTitle)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
const nsString& strTitle = PromiseFlatString(aTitle);
NSString* title = [NSString stringWithCharacters:strTitle.get() length:strTitle.Length()];
[mWindow setTitle:title];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::Invalidate(const nsIntRect & aRect)
{
if (mPopupContentView)
return mPopupContentView->Invalidate(aRect);
return NS_OK;
}
// Pass notification of some drag event to Gecko
//
// The drag manager has let us know that something related to a drag has
// occurred in this window. It could be any number of things, ranging from
// a drop, to a drag enter/leave, or a drag over event. The actual event
// is passed in |aMessage| and is passed along to our event hanlder so Gecko
// knows about it.
bool nsCocoaWindow::DragEvent(unsigned int aMessage, Point aMouseGlobal, UInt16 aKeyModifiers)
{
return false;
}
NS_IMETHODIMP nsCocoaWindow::SendSetZLevelEvent()
{
nsZLevelEvent event(true, NS_SETZLEVEL, this);
event.refPoint.x = mBounds.x;
event.refPoint.y = mBounds.y;
event.time = PR_IntervalNow();
event.mImmediate = true;
nsEventStatus status = nsEventStatus_eIgnore;
DispatchEvent(&event, status);
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::GetChildSheet(bool aShown, nsCocoaWindow** _retval)
{
nsIWidget* child = GetFirstChild();
while (child) {
nsWindowType type;
if (NS_SUCCEEDED(child->GetWindowType(type)) && type == eWindowType_sheet) {
// if it's a sheet, it must be an nsCocoaWindow
nsCocoaWindow* cocoaWindow = static_cast<nsCocoaWindow*>(child);
if ((aShown && [cocoaWindow->mWindow isVisible]) ||
(!aShown && cocoaWindow->mSheetNeedsShow)) {
*_retval = cocoaWindow;
return NS_OK;
}
}
child = child->GetNextSibling();
}
*_retval = nsnull;
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::GetRealParent(nsIWidget** parent)
{
*parent = mParent;
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::GetIsSheet(bool* isSheet)
{
mWindowType == eWindowType_sheet ? *isSheet = true : *isSheet = false;
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::GetSheetWindowParent(NSWindow** sheetWindowParent)
{
*sheetWindowParent = mSheetWindowParent;
return NS_OK;
}
NS_IMETHODIMP nsCocoaWindow::ResetInputState()
{
return NS_OK;
}
// Invokes callback and ProcessEvent methods on Event Listener object
NS_IMETHODIMP
nsCocoaWindow::DispatchEvent(nsGUIEvent* event, nsEventStatus& aStatus)
{
aStatus = nsEventStatus_eIgnore;
nsIWidget* aWidget = event->widget;
NS_IF_ADDREF(aWidget);
if (mEventCallback)
aStatus = (*mEventCallback)(event);
NS_IF_RELEASE(aWidget);
return NS_OK;
}
// aFullScreen should be the window's mFullScreen. We don't have access to that
// from here, so we need to pass it in. mFullScreen should be the canonical
// indicator that a window is currently full screen and it makes sense to keep
// all sizemode logic here.
static nsSizeMode
GetWindowSizeMode(NSWindow* aWindow, bool aFullScreen) {
if (aFullScreen)
return nsSizeMode_Fullscreen;
if ([aWindow isMiniaturized])
return nsSizeMode_Minimized;
if (([aWindow styleMask] & NSResizableWindowMask) && [aWindow isZoomed])
return nsSizeMode_Maximized;
return nsSizeMode_Normal;
}
void
nsCocoaWindow::ReportMoveEvent()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Prevent recursion, which can become infinite (see bug 708278). This
// can happen when the call to [NSWindow setFrameTopLeftPoint:] in
// nsCocoaWindow::Move() triggers an immediate NSWindowDidMove notification
// (and a call to [WindowDelegate windowDidMove:]).
if (mInReportMoveEvent) {
return;
}
mInReportMoveEvent = true;
UpdateBounds();
// Dispatch the move event to Gecko
nsGUIEvent guiEvent(true, NS_MOVE, this);
guiEvent.refPoint.x = mBounds.x;
guiEvent.refPoint.y = mBounds.y;
guiEvent.time = PR_IntervalNow();
nsEventStatus status = nsEventStatus_eIgnore;
DispatchEvent(&guiEvent, status);
mInReportMoveEvent = false;
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void
nsCocoaWindow::DispatchSizeModeEvent()
{
nsSizeMode newMode = GetWindowSizeMode(mWindow, mFullScreen);
// Don't dispatch a sizemode event if:
// 1. the window is transitioning to fullscreen
// 2. the new sizemode is the same as the current sizemode
if (mInFullScreenTransition || mSizeMode == newMode) {
return;
}
mSizeMode = newMode;
nsSizeModeEvent event(true, NS_SIZEMODE, this);
event.mSizeMode = mSizeMode;
event.time = PR_IntervalNow();
nsEventStatus status = nsEventStatus_eIgnore;
DispatchEvent(&event, status);
}
void
nsCocoaWindow::ReportSizeEvent()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
UpdateBounds();
nsSizeEvent sizeEvent(true, NS_SIZE, this);
sizeEvent.time = PR_IntervalNow();
nsIntRect innerBounds;
GetClientBounds(innerBounds);
sizeEvent.windowSize = &innerBounds;
sizeEvent.mWinWidth = mBounds.width;
sizeEvent.mWinHeight = mBounds.height;
nsEventStatus status = nsEventStatus_eIgnore;
DispatchEvent(&sizeEvent, status);
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void nsCocoaWindow::SetMenuBar(nsMenuBarX *aMenuBar)
{
if (mMenuBar)
mMenuBar->SetParent(nsnull);
mMenuBar = aMenuBar;
// Only paint for active windows, or paint the hidden window menu bar if no
// other menu bar has been painted yet so that some reasonable menu bar is
// displayed when the app starts up.
id windowDelegate = [mWindow delegate];
if (mMenuBar &&
((!gSomeMenuBarPainted && nsMenuUtilsX::GetHiddenWindowMenuBar() == mMenuBar) ||
(windowDelegate && [windowDelegate toplevelActiveState])))
mMenuBar->Paint();
}
NS_IMETHODIMP nsCocoaWindow::SetFocus(bool aState)
{
if (mPopupContentView) {
mPopupContentView->SetFocus(aState);
}
else if (aState && ([mWindow isVisible] || [mWindow isMiniaturized])) {
[mWindow makeKeyAndOrderFront:nil];
SendSetZLevelEvent();
}
return NS_OK;
}
nsIntPoint nsCocoaWindow::WidgetToScreenOffset()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
nsIntRect r = nsCocoaUtils::CocoaRectToGeckoRect([mWindow contentRectForFrameRect:[mWindow frame]]);
return r.TopLeft();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(nsIntPoint(0,0));
}
nsIntPoint nsCocoaWindow::GetClientOffset()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
nsIntRect clientRect;
GetClientBounds(clientRect);
return clientRect.TopLeft() - mBounds.TopLeft();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(nsIntPoint(0, 0));
}
nsIntSize nsCocoaWindow::ClientToWindowSize(const nsIntSize& aClientSize)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
// this is only called for popups currently. If needed, expand this to support
// other types of windows
if (!IsPopupWithTitleBar())
return aClientSize;
NSRect rect(NSMakeRect(0.0, 0.0, aClientSize.width, aClientSize.height));
NSRect inflatedRect = [mWindow frameRectForContentRect:rect];
return nsCocoaUtils::CocoaRectToGeckoRect(inflatedRect).Size();
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(nsIntSize(0,0));
}
nsMenuBarX* nsCocoaWindow::GetMenuBar()
{
return mMenuBar;
}
NS_IMETHODIMP nsCocoaWindow::CaptureRollupEvents(nsIRollupListener * aListener,
bool aDoCapture,
bool aConsumeRollupEvent)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
gRollupListener = nsnull;
NS_IF_RELEASE(gRollupWidget);
if (aDoCapture) {
gRollupListener = aListener;
gRollupWidget = this;
NS_ADDREF(this);
gConsumeRollupEvent = aConsumeRollupEvent;
// Sometimes more than one popup window can be visible at the same time
// (e.g. nested non-native context menus, or the test case (attachment
// 276885) for bmo bug 392389, which displays a non-native combo-box in
// a non-native popup window). In these cases the "active" popup window
// (the one that corresponds to the current gRollupWidget) should be the
// topmost -- the (nested) context menu the mouse is currently over, or
// the combo-box's drop-down list (when it's displayed). But (among
// windows that have the same "level") OS X makes topmost the window that
// last received a mouse-down event, which may be incorrect (in the combo-
// box case, it makes topmost the window containing the combo-box). So
// here we fiddle with a non-native popup window's level to make sure the
// "active" one is always above any other non-native popup windows that
// may be visible.
if (mWindow && (mWindowType == eWindowType_popup))
SetPopupWindowLevel();
} else {
// XXXndeakin this doesn't make sense.
// Why is the new window assumed to be a modal panel?
if (mWindow && (mWindowType == eWindowType_popup))
[mWindow setLevel:NSModalPanelWindowLevel];
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::GetAttention(PRInt32 aCycleCount)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
[NSApp requestUserAttention:NSInformationalRequest];
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
bool
nsCocoaWindow::HasPendingInputEvent()
{
return nsChildView::DoHasPendingInputEvent();
}
NS_IMETHODIMP nsCocoaWindow::SetWindowShadowStyle(PRInt32 aStyle)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
mShadowStyle = aStyle;
[mWindow setHasShadow:(aStyle != NS_STYLE_WINDOW_SHADOW_NONE)];
AdjustWindowShadow();
SetUpWindowFilter();
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsCocoaWindow::SetShowsToolbarButton(bool aShow)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[mWindow setShowsToolbarButton:aShow];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void nsCocoaWindow::SetShowsFullScreenButton(bool aShow)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
if (![mWindow respondsToSelector:@selector(toggleFullScreen:)] ||
mUsesNativeFullScreen == aShow) {
return;
}
// If the window is currently in fullscreen mode, then we're going to
// transition out first, then set the collection behavior & toggle
// mUsesNativeFullScreen, then transtion back into fullscreen mode. This
// prevents us from getting into a conflicting state with MakeFullScreen
// where mUsesNativeFullScreen would lead us down the wrong path.
bool wasFullScreen = mFullScreen;
if (wasFullScreen) {
MakeFullScreen(false);
}
NSWindowCollectionBehavior newBehavior = [mWindow collectionBehavior];
if (aShow) {
newBehavior |= NSWindowCollectionBehaviorFullScreenPrimary;
} else {
newBehavior &= ~NSWindowCollectionBehaviorFullScreenPrimary;
}
[mWindow setCollectionBehavior:newBehavior];
mUsesNativeFullScreen = aShow;
if (wasFullScreen) {
MakeFullScreen(true);
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
void nsCocoaWindow::SetWindowAnimationType(nsIWidget::WindowAnimationType aType)
{
mAnimationType = aType;
}
NS_IMETHODIMP nsCocoaWindow::SetWindowTitlebarColor(nscolor aColor, bool aActive)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
// If they pass a color with a complete transparent alpha component, use the
// native titlebar appearance.
if (NS_GET_A(aColor) == 0) {
[mWindow setTitlebarColor:nil forActiveWindow:(BOOL)aActive];
} else {
// Transform from sRGBA to monitor RGBA. This seems like it would make trying
// to match the system appearance lame, so probably we just shouldn't color
// correct chrome.
if (gfxPlatform::GetCMSMode() == eCMSMode_All) {
qcms_transform *transform = gfxPlatform::GetCMSRGBATransform();
if (transform) {
PRUint8 color[3];
color[0] = NS_GET_R(aColor);
color[1] = NS_GET_G(aColor);
color[2] = NS_GET_B(aColor);
qcms_transform_data(transform, color, color, 1);
aColor = NS_RGB(color[0], color[1], color[2]);
}
}
[mWindow setTitlebarColor:[NSColor colorWithDeviceRed:NS_GET_R(aColor)/255.0
green:NS_GET_G(aColor)/255.0
blue:NS_GET_B(aColor)/255.0
alpha:NS_GET_A(aColor)/255.0]
forActiveWindow:(BOOL)aActive];
}
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsCocoaWindow::SetDrawsInTitlebar(bool aState)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[mWindow setDrawsContentsIntoWindowFrame:aState];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
NS_IMETHODIMP nsCocoaWindow::SynthesizeNativeMouseEvent(nsIntPoint aPoint,
PRUint32 aNativeMessage,
PRUint32 aModifierFlags)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (mPopupContentView)
return mPopupContentView->SynthesizeNativeMouseEvent(aPoint, aNativeMessage,
aModifierFlags);
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
gfxASurface* nsCocoaWindow::GetThebesSurface()
{
if (mPopupContentView)
return mPopupContentView->GetThebesSurface();
return nsnull;
}
NS_IMETHODIMP nsCocoaWindow::BeginSecureKeyboardInput()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsresult rv = nsBaseWidget::BeginSecureKeyboardInput();
if (NS_SUCCEEDED(rv)) {
::EnableSecureEventInput();
}
return rv;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP nsCocoaWindow::EndSecureKeyboardInput()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsresult rv = nsBaseWidget::EndSecureKeyboardInput();
if (NS_SUCCEEDED(rv)) {
::DisableSecureEventInput();
}
return rv;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
void nsCocoaWindow::SetPopupWindowLevel()
{
// Floating popups are at the floating level and hide when the window is
// deactivated.
if (mPopupLevel == ePopupLevelFloating) {
[mWindow setLevel:NSFloatingWindowLevel];
[mWindow setHidesOnDeactivate:YES];
}
else {
// Otherwise, this is a top-level or parent popup. Parent popups always
// appear just above their parent and essentially ignore the level.
[mWindow setLevel:NSPopUpMenuWindowLevel];
[mWindow setHidesOnDeactivate:NO];
}
}
bool nsCocoaWindow::IsChildInFailingLeftClickThrough(NSView *aChild)
{
if ([aChild isKindOfClass:[ChildView class]]) {
ChildView* childView = (ChildView*) aChild;
if ([childView isInFailingLeftClickThrough])
return true;
}
NSArray* subviews = [aChild subviews];
if (subviews) {
NSUInteger count = [subviews count];
for (NSUInteger i = 0; i < count; ++i) {
NSView* aView = (NSView*) [subviews objectAtIndex:i];
if (IsChildInFailingLeftClickThrough(aView))
return true;
}
}
return false;
}
// Don't focus a plugin if we're in a left click-through that will
// fail (see [ChildView isInFailingLeftClickThrough]). Called from
// [ChildView shouldFocusPlugin].
bool nsCocoaWindow::ShouldFocusPlugin()
{
if (IsChildInFailingLeftClickThrough([mWindow contentView]))
return false;
return true;
}
@implementation WindowDelegate
// We try to find a gecko menu bar to paint. If one does not exist, just paint
// the application menu by itself so that a window doesn't have some other
// window's menu bar.
+ (void)paintMenubarForWindow:(NSWindow*)aWindow
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// make sure we only act on windows that have this kind of
// object as a delegate
id windowDelegate = [aWindow delegate];
if ([windowDelegate class] != [self class])
return;
nsCocoaWindow* geckoWidget = [windowDelegate geckoWidget];
NS_ASSERTION(geckoWidget, "Window delegate not returning a gecko widget!");
nsMenuBarX* geckoMenuBar = geckoWidget->GetMenuBar();
if (geckoMenuBar) {
geckoMenuBar->Paint();
}
else {
// sometimes we don't have a native application menu early in launching
if (!sApplicationMenu)
return;
NSMenu* mainMenu = [NSApp mainMenu];
NS_ASSERTION([mainMenu numberOfItems] > 0, "Main menu does not have any items, something is terribly wrong!");
// Create a new menu bar.
// We create a GeckoNSMenu because all menu bar NSMenu objects should use that subclass for
// key handling reasons.
GeckoNSMenu* newMenuBar = [[GeckoNSMenu alloc] initWithTitle:@"MainMenuBar"];
// move the application menu from the existing menu bar to the new one
NSMenuItem* firstMenuItem = [[mainMenu itemAtIndex:0] retain];
[mainMenu removeItemAtIndex:0];
[newMenuBar insertItem:firstMenuItem atIndex:0];
[firstMenuItem release];
// set our new menu bar as the main menu
[NSApp setMainMenu:newMenuBar];
[newMenuBar release];
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (id)initWithGeckoWindow:(nsCocoaWindow*)geckoWind
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
[super init];
mGeckoWindow = geckoWind;
mToplevelActiveState = false;
mHasEverBeenZoomed = false;
return self;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (NSSize)windowWillResize:(NSWindow *)sender toSize:(NSSize)proposedFrameSize
{
RollUpPopups();
return proposedFrameSize;
}
- (void)windowDidResize:(NSNotification *)aNotification
{
BaseWindow* window = [aNotification object];
[window updateTrackingArea];
if (!mGeckoWindow)
return;
// Resizing might have changed our zoom state.
mGeckoWindow->DispatchSizeModeEvent();
mGeckoWindow->ReportSizeEvent();
}
- (void)windowDidChangeScreen:(NSNotification *)aNotification
{
if (!mGeckoWindow)
return;
mGeckoWindow->ReportMoveEvent();
}
// Lion's full screen mode will bypass our internal fullscreen tracking, so
// we need to catch it when we transition and call our own methods, which in
// turn will fire "fullscreen" events.
- (void)windowDidEnterFullScreen:(NSNotification *)notification
{
if (!mGeckoWindow) {
return;
}
mGeckoWindow->EnteredFullScreen(true);
}
- (void)windowDidExitFullScreen:(NSNotification *)notification
{
if (!mGeckoWindow) {
return;
}
mGeckoWindow->EnteredFullScreen(false);
}
- (void)windowDidFailToEnterFullScreen:(NSWindow *)window
{
if (!mGeckoWindow) {
return;
}
mGeckoWindow->EnteredFullScreen(false);
}
- (void)windowDidFailToExitFullScreen:(NSWindow *)window
{
if (!mGeckoWindow) {
return;
}
mGeckoWindow->EnteredFullScreen(true);
}
- (void)windowDidBecomeMain:(NSNotification *)aNotification
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
RollUpPopups();
ChildViewMouseTracker::ReEvaluateMouseEnterState();
// [NSApp _isRunningAppModal] will return true if we're running an OS dialog
// app modally. If one of those is up then we want it to retain its menu bar.
if ([NSApp _isRunningAppModal])
return;
NSWindow* window = [aNotification object];
if (window)
[WindowDelegate paintMenubarForWindow:window];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)windowDidResignMain:(NSNotification *)aNotification
{
RollUpPopups();
ChildViewMouseTracker::ReEvaluateMouseEnterState();
// [NSApp _isRunningAppModal] will return true if we're running an OS dialog
// app modally. If one of those is up then we want it to retain its menu bar.
if ([NSApp _isRunningAppModal])
return;
nsRefPtr<nsMenuBarX> hiddenWindowMenuBar = nsMenuUtilsX::GetHiddenWindowMenuBar();
if (hiddenWindowMenuBar) {
// printf("painting hidden window menu bar due to window losing main status\n");
hiddenWindowMenuBar->Paint();
}
}
- (void)windowDidBecomeKey:(NSNotification *)aNotification
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
RollUpPopups();
ChildViewMouseTracker::ReEvaluateMouseEnterState();
NSWindow* window = [aNotification object];
if ([window isSheet])
[WindowDelegate paintMenubarForWindow:window];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)windowDidResignKey:(NSNotification *)aNotification
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
RollUpPopups();
ChildViewMouseTracker::ReEvaluateMouseEnterState();
// If a sheet just resigned key then we should paint the menu bar
// for whatever window is now main.
NSWindow* window = [aNotification object];
if ([window isSheet])
[WindowDelegate paintMenubarForWindow:[NSApp mainWindow]];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)windowWillMove:(NSNotification *)aNotification
{
RollUpPopups();
}
- (void)windowDidMove:(NSNotification *)aNotification
{
if (mGeckoWindow)
mGeckoWindow->ReportMoveEvent();
}
- (BOOL)windowShouldClose:(id)sender
{
// We only want to send NS_XUL_CLOSE and let gecko close the window
nsGUIEvent guiEvent(true, NS_XUL_CLOSE, mGeckoWindow);
guiEvent.time = PR_IntervalNow();
nsEventStatus status = nsEventStatus_eIgnore;
mGeckoWindow->DispatchEvent(&guiEvent, status);
return NO; // gecko will do it
}
- (void)windowWillClose:(NSNotification *)aNotification
{
RollUpPopups();
}
- (void)windowWillMiniaturize:(NSNotification *)aNotification
{
RollUpPopups();
}
- (void)windowDidMiniaturize:(NSNotification *)aNotification
{
if (mGeckoWindow)
mGeckoWindow->DispatchSizeModeEvent();
}
- (void)windowDidDeminiaturize:(NSNotification *)aNotification
{
if (mGeckoWindow)
mGeckoWindow->DispatchSizeModeEvent();
}
- (BOOL)windowShouldZoom:(NSWindow *)window toFrame:(NSRect)proposedFrame
{
if (!mHasEverBeenZoomed && [window isZoomed])
return NO; // See bug 429954.
mHasEverBeenZoomed = YES;
return YES;
}
- (void)sendFocusEvent:(PRUint32)eventType
{
if (!mGeckoWindow)
return;
nsEventStatus status = nsEventStatus_eIgnore;
nsGUIEvent focusGuiEvent(true, eventType, mGeckoWindow);
focusGuiEvent.time = PR_IntervalNow();
mGeckoWindow->DispatchEvent(&focusGuiEvent, status);
}
- (void)didEndSheet:(NSWindow*)sheet returnCode:(int)returnCode contextInfo:(void*)contextInfo
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
// Note: 'contextInfo' (if it is set) is the window that is the parent of
// the sheet. The value of contextInfo is determined in
// nsCocoaWindow::Show(). If it's set, 'contextInfo' is always the top-
// level window, not another sheet itself. But 'contextInfo' is nil if
// our parent window is also a sheet -- in that case we shouldn't send
// the top-level window any activate events (because it's our parent
// window that needs to get these events, not the top-level window).
[TopLevelWindowData deactivateInWindow:sheet];
[sheet orderOut:self];
if (contextInfo)
[TopLevelWindowData activateInWindow:(NSWindow*)contextInfo];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (nsCocoaWindow*)geckoWidget
{
return mGeckoWindow;
}
- (bool)toplevelActiveState
{
return mToplevelActiveState;
}
- (void)sendToplevelActivateEvents
{
if (!mToplevelActiveState) {
[self sendFocusEvent:NS_ACTIVATE];
mToplevelActiveState = true;
}
}
- (void)sendToplevelDeactivateEvents
{
if (mToplevelActiveState) {
[self sendFocusEvent:NS_DEACTIVATE];
mToplevelActiveState = false;
}
}
@end
static float
GetDPI(NSWindow* aWindow)
{
NSScreen* screen = [aWindow screen];
if (!screen)
return 96.0f;
CGDirectDisplayID displayID =
[[[screen deviceDescription] objectForKey:@"NSScreenNumber"] intValue];
CGFloat heightMM = ::CGDisplayScreenSize(displayID).height;
size_t heightPx = ::CGDisplayPixelsHigh(displayID);
CGFloat scaleFactor = [aWindow userSpaceScaleFactor];
if (scaleFactor < 0.01 || heightMM < 1 || heightPx < 1) {
// Something extremely bogus is going on
return 96.0f;
}
// Currently we don't do our own scaling to take account
// of userSpaceScaleFactor, so every "pixel" we draw is actually
// userSpaceScaleFactor screen pixels. So divide the screen height
// by userSpaceScaleFactor to get the number of "device pixels"
// available.
return (heightPx / scaleFactor) / (heightMM / MM_PER_INCH_FLOAT);
}
@interface BaseWindow(Private)
- (void)removeTrackingArea;
- (void)cursorUpdated:(NSEvent*)aEvent;
@end
@implementation BaseWindow
- (id)initWithContentRect:(NSRect)aContentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)aBufferingType defer:(BOOL)aFlag
{
[super initWithContentRect:aContentRect styleMask:aStyle backing:aBufferingType defer:aFlag];
mState = nil;
mDrawsIntoWindowFrame = NO;
mActiveTitlebarColor = nil;
mInactiveTitlebarColor = nil;
mScheduledShadowInvalidation = NO;
mDPI = GetDPI(self);
mTrackingArea = nil;
[self updateTrackingArea];
return self;
}
- (void)dealloc
{
[mActiveTitlebarColor release];
[mInactiveTitlebarColor release];
[self removeTrackingArea];
ChildViewMouseTracker::OnDestroyWindow(self);
[super dealloc];
}
static const NSString* kStateTitleKey = @"title";
static const NSString* kStateDrawsContentsIntoWindowFrameKey = @"drawsContentsIntoWindowFrame";
static const NSString* kStateActiveTitlebarColorKey = @"activeTitlebarColor";
static const NSString* kStateInactiveTitlebarColorKey = @"inactiveTitlebarColor";
static const NSString* kStateShowsToolbarButton = @"showsToolbarButton";
- (void)importState:(NSDictionary*)aState
{
[self setTitle:[aState objectForKey:kStateTitleKey]];
[self setDrawsContentsIntoWindowFrame:[[aState objectForKey:kStateDrawsContentsIntoWindowFrameKey] boolValue]];
[self setTitlebarColor:[aState objectForKey:kStateActiveTitlebarColorKey] forActiveWindow:YES];
[self setTitlebarColor:[aState objectForKey:kStateInactiveTitlebarColorKey] forActiveWindow:NO];
[self setShowsToolbarButton:[[aState objectForKey:kStateShowsToolbarButton] boolValue]];
}
- (NSMutableDictionary*)exportState
{
NSMutableDictionary* state = [NSMutableDictionary dictionaryWithCapacity:10];
[state setObject:[self title] forKey:kStateTitleKey];
[state setObject:[NSNumber numberWithBool:[self drawsContentsIntoWindowFrame]]
forKey:kStateDrawsContentsIntoWindowFrameKey];
NSColor* activeTitlebarColor = [self titlebarColorForActiveWindow:YES];
if (activeTitlebarColor) {
[state setObject:activeTitlebarColor forKey:kStateActiveTitlebarColorKey];
}
NSColor* inactiveTitlebarColor = [self titlebarColorForActiveWindow:NO];
if (inactiveTitlebarColor) {
[state setObject:inactiveTitlebarColor forKey:kStateInactiveTitlebarColorKey];
}
[state setObject:[NSNumber numberWithBool:[self showsToolbarButton]]
forKey:kStateShowsToolbarButton];
return state;
}
- (void)setDrawsContentsIntoWindowFrame:(BOOL)aState
{
mDrawsIntoWindowFrame = aState;
}
- (BOOL)drawsContentsIntoWindowFrame
{
return mDrawsIntoWindowFrame;
}
// Pass nil here to get the default appearance.
- (void)setTitlebarColor:(NSColor*)aColor forActiveWindow:(BOOL)aActive
{
[aColor retain];
if (aActive) {
[mActiveTitlebarColor release];
mActiveTitlebarColor = aColor;
} else {
[mInactiveTitlebarColor release];
mInactiveTitlebarColor = aColor;
}
}
- (NSColor*)titlebarColorForActiveWindow:(BOOL)aActive
{
return aActive ? mActiveTitlebarColor : mInactiveTitlebarColor;
}
- (void)deferredInvalidateShadow
{
if (mScheduledShadowInvalidation || [self isOpaque] || ![self hasShadow])
return;
[self performSelector:@selector(invalidateShadow) withObject:nil afterDelay:0];
mScheduledShadowInvalidation = YES;
}
- (void)invalidateShadow
{
[super invalidateShadow];
mScheduledShadowInvalidation = NO;
}
- (float)getDPI
{
return mDPI;
}
- (NSView*)trackingAreaView
{
NSView* contentView = [self contentView];
return [contentView superview] ? [contentView superview] : contentView;
}
- (void)removeTrackingArea
{
if (mTrackingArea) {
[[self trackingAreaView] removeTrackingArea:mTrackingArea];
[mTrackingArea release];
mTrackingArea = nil;
}
}
- (void)updateTrackingArea
{
[self removeTrackingArea];
NSView* view = [self trackingAreaView];
const NSTrackingAreaOptions options =
NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways;
mTrackingArea = [[NSTrackingArea alloc] initWithRect:[view bounds]
options:options
owner:self
userInfo:nil];
[view addTrackingArea:mTrackingArea];
}
- (void)mouseEntered:(NSEvent*)aEvent
{
ChildViewMouseTracker::MouseEnteredWindow(aEvent);
}
- (void)mouseExited:(NSEvent*)aEvent
{
ChildViewMouseTracker::MouseExitedWindow(aEvent);
}
- (void)mouseMoved:(NSEvent*)aEvent
{
ChildViewMouseTracker::MouseMoved(aEvent);
}
- (void)cursorUpdated:(NSEvent*)aEvent
{
// Nothing to do here, but NSTrackingArea wants us to implement this method.
}
- (BOOL)respondsToSelector:(SEL)aSelector
{
// Claim the window doesn't respond to this so that the system
// doesn't steal keyboard equivalents for it. Bug 613710.
if (aSelector == @selector(cancelOperation:)) {
return NO;
}
return [super respondsToSelector:aSelector];
}
- (void) doCommandBySelector:(SEL)aSelector
{
// We override this so that it won't beep if it can't act.
// We want to control the beeping for missing or disabled
// commands ourselves.
[self tryToPerform:aSelector with:nil];
}
- (id)accessibilityAttributeValue:(NSString *)attribute
{
id retval = [super accessibilityAttributeValue:attribute];
// The following works around a problem with Text-to-Speech on OS X 10.7.
// See bug 674612 for more info.
//
// When accessibility is off, AXUIElementCopyAttributeValue(), when called
// on an AXApplication object to get its AXFocusedUIElement attribute,
// always returns an AXWindow object (the actual browser window -- never a
// mozAccessible object). This also happens with accessibility turned on,
// if no other object in the browser window has yet been focused. But if
// the browser window has a title bar (as it currently always does), the
// AXWindow object will always have four "accessible" children, one of which
// is an AXStaticText object (the title bar's "title"; the other three are
// the close, minimize and zoom buttons). This means that (for complicated
// reasons, for which see bug 674612) Text-to-Speech on OS X 10.7 will often
// "speak" the window title, no matter what text is selected, or even if no
// text at all is selected. (This always happens when accessibility is off.
// It doesn't happen in Firefox releases because Apple has (on OS X 10.7)
// special-cased the handling of apps whose CFBundleIdentifier is
// org.mozilla.firefox.)
//
// We work around this problem by only returning AXChildren that are
// mozAccessible object or are one of the titlebar's buttons (which
// instantiate subclasses of NSButtonCell).
if (nsCocoaFeatures::OnLionOrLater() && [retval isKindOfClass:[NSArray class]] &&
[attribute isEqualToString:@"AXChildren"]) {
NSMutableArray *holder = [NSMutableArray arrayWithCapacity:10];
[holder addObjectsFromArray:(NSArray *)retval];
NSUInteger count = [holder count];
for (NSInteger i = count - 1; i >= 0; --i) {
id item = [holder objectAtIndex:i];
// Remove anything from holder that isn't one of the titlebar's buttons
// (which instantiate subclasses of NSButtonCell) or a mozAccessible
// object (or one of its subclasses).
if (![item isKindOfClass:[NSButtonCell class]] &&
![item respondsToSelector:@selector(hasRepresentedView)]) {
[holder removeObjectAtIndex:i];
}
}
retval = [NSArray arrayWithArray:holder];
}
return retval;
}
@end
// This class allows us to have a "unified toolbar" style window. It works like this:
// 1) We set the window's style to textured.
// 2) Because of this, the background color applies to the entire window, including
// the titlebar area. For normal textured windows, the default pattern is a
// "brushed metal" image on Tiger and a unified gradient on Leopard.
// 3) We set the background color to a custom NSColor subclass that knows how tall the window is.
// When -set is called on it, it sets a pattern (with a draw callback) as the fill. In that callback,
// it paints the the titlebar and background colors in the correct areas of the context it's given,
// which will fill the entire window (CG will tile it horizontally for us).
// 4) Whenever the window's main state changes and when [window display] is called,
// Cocoa redraws the titlebar using the patternDraw callback function.
//
// This class also provides us with a pill button to show/hide the toolbar.
//
// Drawing the unified gradient in the titlebar and the toolbar works like this:
// 1) In the style sheet we set the toolbar's -moz-appearance to -moz-mac-unified-toolbar.
// 2) When the toolbar is visible and we paint the application chrome
// window, the array that Gecko passes nsChildView::UpdateThemeGeometries
// will contain an entry for the widget type NS_THEME_TOOLBAR or
// NS_THEME_MOZ_MAC_UNIFIED_TOOLBAR.
// 3) nsChildView::UpdateThemeGeometries finds the toolbar frame's ToolbarWindow
// and passes the toolbar frame's height to setUnifiedToolbarHeight.
// 4) If the toolbar height has changed, a titlebar redraw is triggered and the
// upper part of the unified gradient is drawn in the titlebar.
// 5) The lower part of the unified gradient in the toolbar is drawn during
// normal window content painting in nsNativeThemeCocoa::DrawUnifiedToolbar.
//
// Whenever the unified gradient is drawn in the titlebar or the toolbar, both
// titlebar height and toolbar height must be known in order to construct the
// correct gradient (which is a linear gradient with the length
// titlebarHeight + toolbarHeight - 1). But you can only get from the toolbar frame
// to the containing window - the other direction doesn't work. That's why the
// toolbar height is cached in the ToolbarWindow but nsNativeThemeCocoa can simply
// query the window for its titlebar height when drawing the toolbar.
@implementation ToolbarWindow
- (id)initWithContentRect:(NSRect)aContentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)aBufferingType defer:(BOOL)aFlag
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
aStyle = aStyle | NSTexturedBackgroundWindowMask;
if ((self = [super initWithContentRect:aContentRect styleMask:aStyle backing:aBufferingType defer:aFlag])) {
mColor = [[TitlebarAndBackgroundColor alloc] initWithWindow:self];
// Bypass our guard method below.
[super setBackgroundColor:mColor];
mBackgroundColor = [[NSColor whiteColor] retain];
mUnifiedToolbarHeight = 0.0f;
// setBottomCornerRounded: is a private API call, so we check to make sure
// we respond to it just in case.
if ([self respondsToSelector:@selector(setBottomCornerRounded:)])
[self setBottomCornerRounded:NO];
[self setAutorecalculatesContentBorderThickness:NO forEdge:NSMaxYEdge];
[self setContentBorderThickness:0.0f forEdge:NSMaxYEdge];
}
return self;
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (void)dealloc
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
[mColor release];
[mBackgroundColor release];
[super dealloc];
NS_OBJC_END_TRY_ABORT_BLOCK;
}
- (void)setTitlebarColor:(NSColor*)aColor forActiveWindow:(BOOL)aActive
{
[super setTitlebarColor:aColor forActiveWindow:aActive];
[self setTitlebarNeedsDisplayInRect:[self titlebarRect]];
}
- (void)setBackgroundColor:(NSColor*)aColor
{
[aColor retain];
[mBackgroundColor release];
mBackgroundColor = aColor;
}
- (NSColor*)windowBackgroundColor
{
return mBackgroundColor;
}
- (void)setTitlebarNeedsDisplayInRect:(NSRect)aRect
{
[self setTitlebarNeedsDisplayInRect:aRect sync:NO];
}
- (void)setTitlebarNeedsDisplayInRect:(NSRect)aRect sync:(BOOL)aSync
{
NSRect titlebarRect = [self titlebarRect];
NSRect rect = NSIntersectionRect(titlebarRect, aRect);
if (NSIsEmptyRect(rect))
return;
NSView* borderView = [[self contentView] superview];
if (!borderView)
return;
if (aSync) {
[borderView displayRect:rect];
} else {
[borderView setNeedsDisplayInRect:rect];
}
}
- (NSRect)titlebarRect
{
return NSMakeRect(0, [[self contentView] bounds].size.height,
[self frame].size.width, [self titlebarHeight]);
}
- (float)unifiedToolbarHeight
{
return mUnifiedToolbarHeight;
}
- (float)titlebarHeight
{
NSRect frameRect = [self frame];
return frameRect.size.height - [self contentRectForFrameRect:frameRect].size.height;
}
- (void)setUnifiedToolbarHeight:(float)aHeight
{
if ([self drawsContentsIntoWindowFrame] || aHeight == mUnifiedToolbarHeight)
return;
mUnifiedToolbarHeight = aHeight;
// Update sheet positioning hint.
[self setContentBorderThickness:mUnifiedToolbarHeight forEdge:NSMaxYEdge];
// Redraw the title bar. If we're inside painting, we'll do it right now,
// otherwise we'll just invalidate it.
BOOL needSyncRedraw = ([NSView focusView] != nil);
[self setTitlebarNeedsDisplayInRect:[self titlebarRect] sync:needSyncRedraw];
}
- (void)setDrawsContentsIntoWindowFrame:(BOOL)aState
{
BOOL stateChanged = ([self drawsContentsIntoWindowFrame] != aState);
[super setDrawsContentsIntoWindowFrame:aState];
if (stateChanged && [[self delegate] isKindOfClass:[WindowDelegate class]]) {
WindowDelegate *windowDelegate = (WindowDelegate *)[self delegate];
nsCocoaWindow *geckoWindow = [windowDelegate geckoWidget];
if (geckoWindow) {
// Re-layout our contents.
geckoWindow->ReportSizeEvent();
}
// Resizing the content area causes a reflow which would send a synthesized
// mousemove event to the old mouse position relative to the top left
// corner of the content area. But the mouse has shifted relative to the
// content area, so that event would have wrong position information. So
// we'll send a mouse move event with the correct new position.
ChildViewMouseTracker::ResendLastMouseMoveEvent();
[self setTitlebarNeedsDisplayInRect:[self titlebarRect]];
}
}
// Returning YES here makes the setShowsToolbarButton method work even though
// the window doesn't contain an NSToolbar.
- (BOOL)_hasToolbar
{
return YES;
}
// Dispatch a toolbar pill button clicked message to Gecko.
- (void)_toolbarPillButtonClicked:(id)sender
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
RollUpPopups();
if ([[self delegate] isKindOfClass:[WindowDelegate class]]) {
WindowDelegate *windowDelegate = (WindowDelegate *)[self delegate];
nsCocoaWindow *geckoWindow = [windowDelegate geckoWidget];
if (!geckoWindow)
return;
nsEventStatus status = nsEventStatus_eIgnore;
nsGUIEvent guiEvent(true, NS_OS_TOOLBAR, geckoWindow);
guiEvent.time = PR_IntervalNow();
geckoWindow->DispatchEvent(&guiEvent, status);
}
NS_OBJC_END_TRY_ABORT_BLOCK;
}
// Retain and release "self" to avoid crashes when our widget (and its native
// window) is closed as a result of processing a key equivalent (e.g.
// Command+w or Command+q). This workaround is only needed for a window
// that can become key.
- (BOOL)performKeyEquivalent:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NSWindow *nativeWindow = [self retain];
BOOL retval = [super performKeyEquivalent:theEvent];
[nativeWindow release];
return retval;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
- (void)sendEvent:(NSEvent *)anEvent
{
NSEventType type = [anEvent type];
switch (type) {
case NSScrollWheel:
case NSLeftMouseDown:
case NSLeftMouseUp:
case NSRightMouseDown:
case NSRightMouseUp:
case NSOtherMouseDown:
case NSOtherMouseUp:
case NSMouseMoved:
case NSLeftMouseDragged:
case NSRightMouseDragged:
case NSOtherMouseDragged:
{
// Drop all mouse events if a modal window has appeared above us.
// This helps make us behave as if the OS were running a "real" modal
// event loop.
id delegate = [self delegate];
if (delegate && [delegate isKindOfClass:[WindowDelegate class]]) {
nsCocoaWindow *widget = [(WindowDelegate *)delegate geckoWidget];
if (widget) {
if (gGeckoAppModalWindowList && (widget != gGeckoAppModalWindowList->window))
return;
if (widget->HasModalDescendents())
return;
}
}
break;
}
default:
break;
}
[super sendEvent:anEvent];
}
@end
// Custom NSColor subclass where most of the work takes place for drawing in
// the titlebar area.
@implementation TitlebarAndBackgroundColor
- (id)initWithWindow:(ToolbarWindow*)aWindow
{
if ((self = [super init])) {
mWindow = aWindow; // weak ref to avoid a cycle
}
return self;
}
static void
DrawNativeTitlebar(CGContextRef aContext, CGRect aTitlebarRect,
float aToolbarHeight, BOOL aIsMain)
{
int unifiedHeight = aTitlebarRect.size.height + aToolbarHeight;
CUIDraw([NSWindow coreUIRenderer], aTitlebarRect, aContext,
(CFDictionaryRef)[NSDictionary dictionaryWithObjectsAndKeys:
@"kCUIWidgetWindowFrame", @"widget",
@"regularwin", @"windowtype",
(aIsMain ? @"normal" : @"inactive"), @"state",
[NSNumber numberWithInt:unifiedHeight], @"kCUIWindowFrameUnifiedTitleBarHeightKey",
[NSNumber numberWithBool:YES], @"kCUIWindowFrameDrawTitleSeparatorKey",
nil],
nil);
if (nsCocoaFeatures::OnLionOrLater()) {
// On Lion the call to CUIDraw doesn't draw the top pixel strip at some
// window widths. We don't want to have a flickering transparent line, so
// we overdraw it.
CGContextSetRGBFillColor(aContext, 0.95, 0.95, 0.95, 1);
CGContextFillRect(aContext, CGRectMake(0, CGRectGetMaxY(aTitlebarRect) - 1,
aTitlebarRect.size.width, 1));
}
}
// Pattern draw callback for standard titlebar gradients and solid titlebar colors
static void
TitlebarDrawCallback(void* aInfo, CGContextRef aContext)
{
ToolbarWindow *window = (ToolbarWindow*)aInfo;
NSRect titlebarRect = [window titlebarRect];
if ([window drawsContentsIntoWindowFrame]) {
NSView* view = [[[window contentView] subviews] lastObject];
if (!view || ![view isKindOfClass:[ChildView class]])
return;
// Gecko drawing assumes flippedness, but the current context isn't flipped
// (because we're painting into the window's border view, which is not a
// ChildView, so it isn't flipped).
// So we need to set a flip transform.
CGContextScaleCTM(aContext, 1.0f, -1.0f);
CGContextTranslateCTM(aContext, 0.0f, -[window frame].size.height);
NSRect flippedTitlebarRect = { NSZeroPoint, titlebarRect.size };
[(ChildView*)view drawRect:flippedTitlebarRect inTitlebarContext:aContext];
} else {
BOOL isMain = [window isMainWindow];
NSColor *titlebarColor = [window titlebarColorForActiveWindow:isMain];
if (!titlebarColor) {
// If the titlebar color is nil, draw the default titlebar shading.
DrawNativeTitlebar(aContext, NSRectToCGRect(titlebarRect),
[window unifiedToolbarHeight], isMain);
} else {
// If the titlebar color is not nil, just set and draw it normally.
[NSGraphicsContext saveGraphicsState];
[NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithGraphicsPort:aContext flipped:NO]];
[titlebarColor set];
NSRectFill(titlebarRect);
[NSGraphicsContext restoreGraphicsState];
}
}
}
- (void)setFill
{
float patternWidth = [mWindow frame].size.width;
CGPatternCallbacks callbacks = {0, &TitlebarDrawCallback, NULL};
CGPatternRef pattern = CGPatternCreate(mWindow, CGRectMake(0.0f, 0.0f, patternWidth, [mWindow frame].size.height),
CGAffineTransformIdentity, patternWidth, [mWindow frame].size.height,
kCGPatternTilingConstantSpacing, true, &callbacks);
// Set the pattern as the fill, which is what we were asked to do. All our
// drawing will take place in the patternDraw callback.
CGColorSpaceRef patternSpace = CGColorSpaceCreatePattern(NULL);
CGContextRef context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
CGContextSetFillColorSpace(context, patternSpace);
CGColorSpaceRelease(patternSpace);
CGFloat component = 1.0f;
CGContextSetFillPattern(context, pattern, &component);
CGPatternRelease(pattern);
}
- (void)set
{
[self setFill];
}
- (NSString*)colorSpaceName
{
return NSDeviceRGBColorSpace;
}
@end
@implementation PopupWindow
- (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)styleMask
backing:(NSBackingStoreType)bufferingType defer:(BOOL)deferCreation
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;
mIsContextMenu = false;
return [super initWithContentRect:contentRect styleMask:styleMask
backing:bufferingType defer:deferCreation];
NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}
- (BOOL)isContextMenu
{
return mIsContextMenu;
}
- (void)setIsContextMenu:(BOOL)flag
{
mIsContextMenu = flag;
}
- (BOOL)canBecomeMainWindow
{
// This is overriden because the default is 'yes' when a titlebar is present.
return NO;
}
@end
// According to Apple's docs on [NSWindow canBecomeKeyWindow] and [NSWindow
// canBecomeMainWindow], windows without a title bar or resize bar can't (by
// default) become key or main. But if a window can't become key, it can't
// accept keyboard input (bmo bug 393250). And it should also be possible for
// an otherwise "ordinary" window to become main. We need to override these
// two methods to make this happen.
@implementation BorderlessWindow
- (BOOL)canBecomeKeyWindow
{
return YES;
}
- (void)sendEvent:(NSEvent *)anEvent
{
NSEventType type = [anEvent type];
switch (type) {
case NSScrollWheel:
case NSLeftMouseDown:
case NSLeftMouseUp:
case NSRightMouseDown:
case NSRightMouseUp:
case NSOtherMouseDown:
case NSOtherMouseUp:
case NSMouseMoved:
case NSLeftMouseDragged:
case NSRightMouseDragged:
case NSOtherMouseDragged:
{
// Drop all mouse events if a modal window has appeared above us.
// This helps make us behave as if the OS were running a "real" modal
// event loop.
id delegate = [self delegate];
if (delegate && [delegate isKindOfClass:[WindowDelegate class]]) {
nsCocoaWindow *widget = [(WindowDelegate *)delegate geckoWidget];
if (widget) {
if (gGeckoAppModalWindowList && (widget != gGeckoAppModalWindowList->window))
return;
if (widget->HasModalDescendents())
return;
}
}
break;
}
default:
break;
}
[super sendEvent:anEvent];
}
// Apple's doc on this method says that the NSWindow class's default is not to
// become main if the window isn't "visible" -- so we should replicate that
// behavior here. As best I can tell, the [NSWindow isVisible] method is an
// accurate test of what Apple means by "visibility".
- (BOOL)canBecomeMainWindow
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
if (![self isVisible])
return NO;
return YES;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
// Retain and release "self" to avoid crashes when our widget (and its native
// window) is closed as a result of processing a key equivalent (e.g.
// Command+w or Command+q). This workaround is only needed for a window
// that can become key.
- (BOOL)performKeyEquivalent:(NSEvent*)theEvent
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
NSWindow *nativeWindow = [self retain];
BOOL retval = [super performKeyEquivalent:theEvent];
[nativeWindow release];
return retval;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NO);
}
@end
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