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gecko-dev/widget/nsBaseWidget.cpp
Jan Horak 229b3f0529 Bug 1493081 - Added nsIWidget::GetDesktopToDeviceScaleByScreen for scale factor lookup by window position; r=mattwoodrow 
We've added nsIWidget::GetDesktopToDeviceScaleByScreen which will return scale factor of the newly placed window
according to its position on the display. This change is to move implementation to the nsIWidget derived classes.
We need that for GTK Wayland, because on the Wayland we cannot determine absolute position of the window, we
need to use parent's window scale factor. For other platforms the GetDesktopToDeviceScaleByScreen is implemented
in nsBaseWidget.

Differential Revision: https://phabricator.services.mozilla.com/D7290

--HG--
extra : moz-landing-system : lando
2018-10-23 12:49:21 +00:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/UniquePtr.h"
#include "mozilla/TextEventDispatcher.h"
#include "mozilla/TextEventDispatcherListener.h"
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/layers/PLayerTransactionChild.h"
#include "mozilla/layers/ImageBridgeChild.h"
#include "LiveResizeListener.h"
#include "nsBaseWidget.h"
#include "nsDeviceContext.h"
#include "nsCOMPtr.h"
#include "nsGfxCIID.h"
#include "nsWidgetsCID.h"
#include "nsServiceManagerUtils.h"
#include "nsIKeyEventInPluginCallback.h"
#include "nsIScreenManager.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsISimpleEnumerator.h"
#include "nsIContent.h"
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsIServiceManager.h"
#include "mozilla/Preferences.h"
#include "BasicLayers.h"
#include "ClientLayerManager.h"
#include "mozilla/layers/Compositor.h"
#include "nsIXULRuntime.h"
#include "nsIXULWindow.h"
#include "nsIBaseWindow.h"
#include "nsXULPopupManager.h"
#include "nsXBLWindowKeyHandler.h"
#include "nsIWidgetListener.h"
#include "nsIGfxInfo.h"
#include "npapi.h"
#include "X11UndefineNone.h"
#include "base/thread.h"
#include "prdtoa.h"
#include "prenv.h"
#include "mozilla/Attributes.h"
#include "mozilla/Unused.h"
#include "nsContentUtils.h"
#include "gfxPrefs.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/MouseEvents.h"
#include "GLConsts.h"
#include "mozilla/Unused.h"
#include "mozilla/IMEStateManager.h"
#include "mozilla/VsyncDispatcher.h"
#include "mozilla/layers/IAPZCTreeManager.h"
#include "mozilla/layers/APZEventState.h"
#include "mozilla/layers/APZInputBridge.h"
#include "mozilla/layers/APZThreadUtils.h"
#include "mozilla/layers/ChromeProcessController.h"
#include "mozilla/layers/CompositorOptions.h"
#include "mozilla/layers/InputAPZContext.h"
#include "mozilla/layers/APZCCallbackHelper.h"
#include "mozilla/layers/WebRenderLayerManager.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/TabParent.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/Move.h"
#include "mozilla/Services.h"
#include "mozilla/Sprintf.h"
#include "mozilla/webrender/WebRenderTypes.h"
#include "nsRefPtrHashtable.h"
#include "TouchEvents.h"
#include "WritingModes.h"
#include "InputData.h"
#include "FrameLayerBuilder.h"
#ifdef ACCESSIBILITY
#include "nsAccessibilityService.h"
#endif
#include "gfxConfig.h"
#include "mozilla/layers/CompositorSession.h"
#include "VRManagerChild.h"
#include "gfxConfig.h"
#include "nsView.h"
#include "nsViewManager.h"
#ifdef DEBUG
#include "nsIObserver.h"
static void debug_RegisterPrefCallbacks();
#endif
#ifdef NOISY_WIDGET_LEAKS
static int32_t gNumWidgets;
#endif
#ifdef XP_MACOSX
#include "nsCocoaFeatures.h"
#endif
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
static nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>* sPluginWidgetList;
#endif
nsIRollupListener* nsBaseWidget::gRollupListener = nullptr;
using namespace mozilla::dom;
using namespace mozilla::layers;
using namespace mozilla::ipc;
using namespace mozilla::widget;
using namespace mozilla;
using base::Thread;
// Global user preference for disabling native theme. Used
// in NativeWindowTheme.
bool gDisableNativeTheme = false;
// Async pump timer during injected long touch taps
#define TOUCH_INJECT_PUMP_TIMER_MSEC 50
#define TOUCH_INJECT_LONG_TAP_DEFAULT_MSEC 1500
int32_t nsIWidget::sPointerIdCounter = 0;
// Some statics from nsIWidget.h
/*static*/ uint64_t AutoObserverNotifier::sObserverId = 0;
/*static*/ nsDataHashtable<nsUint64HashKey, nsCOMPtr<nsIObserver>> AutoObserverNotifier::sSavedObservers;
// The maximum amount of time to let the EnableDragDrop runnable wait in the
// idle queue before timing out and moving it to the regular queue. Value is in
// milliseconds.
const uint32_t kAsyncDragDropTimeout = 1000;
namespace mozilla {
namespace widget {
void
IMENotification::SelectionChangeDataBase::SetWritingMode(
const WritingMode& aWritingMode)
{
mWritingMode = aWritingMode.mWritingMode;
}
WritingMode
IMENotification::SelectionChangeDataBase::GetWritingMode() const
{
return WritingMode(mWritingMode);
}
} // namespace widget
} // namespace mozilla
NS_IMPL_ISUPPORTS(nsBaseWidget, nsIWidget, nsISupportsWeakReference)
//-------------------------------------------------------------------------
//
// nsBaseWidget constructor
//
//-------------------------------------------------------------------------
nsBaseWidget::nsBaseWidget()
: mWidgetListener(nullptr)
, mAttachedWidgetListener(nullptr)
, mPreviouslyAttachedWidgetListener(nullptr)
, mLayerManager(nullptr)
, mCompositorVsyncDispatcher(nullptr)
, mCursor(eCursor_standard)
, mBorderStyle(eBorderStyle_none)
, mBounds(0,0,0,0)
, mOriginalBounds(nullptr)
, mClipRectCount(0)
, mSizeMode(nsSizeMode_Normal)
, mPopupLevel(ePopupLevelTop)
, mPopupType(ePopupTypeAny)
, mHasRemoteContent(false)
, mUpdateCursor(true)
, mUseAttachedEvents(false)
, mIMEHasFocus(false)
, mIsFullyOccluded(false)
{
#ifdef NOISY_WIDGET_LEAKS
gNumWidgets++;
printf("WIDGETS+ = %d\n", gNumWidgets);
#endif
#ifdef DEBUG
debug_RegisterPrefCallbacks();
#endif
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
if (!sPluginWidgetList) {
sPluginWidgetList = new nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>();
}
#endif
mShutdownObserver = new WidgetShutdownObserver(this);
}
NS_IMPL_ISUPPORTS(WidgetShutdownObserver, nsIObserver)
WidgetShutdownObserver::WidgetShutdownObserver(nsBaseWidget* aWidget) :
mWidget(aWidget),
mRegistered(false)
{
Register();
}
WidgetShutdownObserver::~WidgetShutdownObserver()
{
// No need to call Unregister(), we can't be destroyed until nsBaseWidget
// gets torn down. The observer service and nsBaseWidget have a ref on us
// so nsBaseWidget has to call Unregister and then clear its ref.
}
NS_IMETHODIMP
WidgetShutdownObserver::Observe(nsISupports *aSubject,
const char *aTopic,
const char16_t *aData)
{
if (mWidget && !strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
RefPtr<nsBaseWidget> widget(mWidget);
widget->Shutdown();
}
return NS_OK;
}
void
WidgetShutdownObserver::Register()
{
if (!mRegistered) {
mRegistered = true;
nsContentUtils::RegisterShutdownObserver(this);
}
}
void
WidgetShutdownObserver::Unregister()
{
if (mRegistered) {
mWidget = nullptr;
nsContentUtils::UnregisterShutdownObserver(this);
mRegistered = false;
}
}
void
nsBaseWidget::Shutdown()
{
NotifyLiveResizeStopped();
RevokeTransactionIdAllocator();
DestroyCompositor();
FreeShutdownObserver();
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
if (sPluginWidgetList) {
delete sPluginWidgetList;
sPluginWidgetList = nullptr;
}
#endif
}
void nsBaseWidget::DestroyCompositor()
{
// We release this before releasing the compositor, since it may hold the
// last reference to our ClientLayerManager. ClientLayerManager's dtor can
// trigger a paint, creating a new compositor, and we don't want to re-use
// the old vsync dispatcher.
if (mCompositorVsyncDispatcher) {
MOZ_ASSERT(mCompositorVsyncDispatcherLock.get());
MutexAutoLock lock(*mCompositorVsyncDispatcherLock.get());
mCompositorVsyncDispatcher->Shutdown();
mCompositorVsyncDispatcher = nullptr;
}
// The compositor shutdown sequence looks like this:
// 1. CompositorSession calls CompositorBridgeChild::Destroy.
// 2. CompositorBridgeChild synchronously sends WillClose.
// 3. CompositorBridgeParent releases some resources (such as the layer
// manager, compositor, and widget).
// 4. CompositorBridgeChild::Destroy returns.
// 5. Asynchronously, CompositorBridgeParent::ActorDestroy will fire on the
// compositor thread when the I/O thread closes the IPC channel.
// 6. Step 5 will schedule DeferredDestroy on the compositor thread, which
// releases the reference CompositorBridgeParent holds to itself.
//
// When CompositorSession::Shutdown returns, we assume the compositor is gone
// or will be gone very soon.
if (mCompositorSession) {
ReleaseContentController();
mAPZC = nullptr;
SetCompositorWidgetDelegate(nullptr);
mCompositorBridgeChild = nullptr;
// XXX CompositorBridgeChild and CompositorBridgeParent might be re-created in
// ClientLayerManager destructor. See bug 1133426.
RefPtr<CompositorSession> session = mCompositorSession.forget();
session->Shutdown();
}
}
// This prevents the layer manager from starting a new transaction during
// shutdown.
void
nsBaseWidget::RevokeTransactionIdAllocator()
{
if (!mLayerManager) {
return;
}
mLayerManager->SetTransactionIdAllocator(nullptr);
}
void nsBaseWidget::ReleaseContentController()
{
if (mRootContentController) {
mRootContentController->Destroy();
mRootContentController = nullptr;
}
}
void nsBaseWidget::DestroyLayerManager()
{
if (mLayerManager) {
mLayerManager->Destroy();
mLayerManager = nullptr;
}
DestroyCompositor();
}
void
nsBaseWidget::OnRenderingDeviceReset()
{
DestroyLayerManager();
}
void
nsBaseWidget::FreeShutdownObserver()
{
if (mShutdownObserver) {
mShutdownObserver->Unregister();
}
mShutdownObserver = nullptr;
}
//-------------------------------------------------------------------------
//
// nsBaseWidget destructor
//
//-------------------------------------------------------------------------
nsBaseWidget::~nsBaseWidget()
{
IMEStateManager::WidgetDestroyed(this);
if (mLayerManager) {
if (BasicLayerManager* mgr = mLayerManager->AsBasicLayerManager()) {
mgr->ClearRetainerWidget();
}
}
FreeShutdownObserver();
RevokeTransactionIdAllocator();
DestroyLayerManager();
#ifdef NOISY_WIDGET_LEAKS
gNumWidgets--;
printf("WIDGETS- = %d\n", gNumWidgets);
#endif
delete mOriginalBounds;
}
//-------------------------------------------------------------------------
//
// Basic create.
//
//-------------------------------------------------------------------------
void nsBaseWidget::BaseCreate(nsIWidget* aParent,
nsWidgetInitData* aInitData)
{
static bool gDisableNativeThemeCached = false;
if (!gDisableNativeThemeCached) {
Preferences::AddBoolVarCache(&gDisableNativeTheme,
"mozilla.widget.disable-native-theme",
gDisableNativeTheme);
gDisableNativeThemeCached = true;
}
// keep a reference to the device context
if (nullptr != aInitData) {
mWindowType = aInitData->mWindowType;
mBorderStyle = aInitData->mBorderStyle;
mPopupLevel = aInitData->mPopupLevel;
mPopupType = aInitData->mPopupHint;
mHasRemoteContent = aInitData->mHasRemoteContent;
}
if (aParent) {
aParent->AddChild(this);
}
}
//-------------------------------------------------------------------------
//
// Accessor functions to get/set the client data
//
//-------------------------------------------------------------------------
nsIWidgetListener* nsBaseWidget::GetWidgetListener()
{
return mWidgetListener;
}
void nsBaseWidget::SetWidgetListener(nsIWidgetListener* aWidgetListener)
{
mWidgetListener = aWidgetListener;
}
already_AddRefed<nsIWidget>
nsBaseWidget::CreateChild(const LayoutDeviceIntRect& aRect,
nsWidgetInitData* aInitData,
bool aForceUseIWidgetParent)
{
nsIWidget* parent = this;
nsNativeWidget nativeParent = nullptr;
if (!aForceUseIWidgetParent) {
// Use only either parent or nativeParent, not both, to match
// existing code. Eventually Create() should be divested of its
// nativeWidget parameter.
nativeParent = parent ? parent->GetNativeData(NS_NATIVE_WIDGET) : nullptr;
parent = nativeParent ? nullptr : parent;
MOZ_ASSERT(!parent || !nativeParent, "messed up logic");
}
nsCOMPtr<nsIWidget> widget;
if (aInitData && aInitData->mWindowType == eWindowType_popup) {
widget = AllocateChildPopupWidget();
} else {
widget = nsIWidget::CreateChildWindow();
}
if (widget &&
NS_SUCCEEDED(widget->Create(parent, nativeParent, aRect, aInitData))) {
return widget.forget();
}
return nullptr;
}
// Attach a view to our widget which we'll send events to.
void
nsBaseWidget::AttachViewToTopLevel(bool aUseAttachedEvents)
{
NS_ASSERTION((mWindowType == eWindowType_toplevel ||
mWindowType == eWindowType_dialog ||
mWindowType == eWindowType_invisible ||
mWindowType == eWindowType_child),
"Can't attach to window of that type");
mUseAttachedEvents = aUseAttachedEvents;
}
nsIWidgetListener* nsBaseWidget::GetAttachedWidgetListener()
{
return mAttachedWidgetListener;
}
nsIWidgetListener* nsBaseWidget::GetPreviouslyAttachedWidgetListener()
{
return mPreviouslyAttachedWidgetListener;
}
void nsBaseWidget::SetPreviouslyAttachedWidgetListener(nsIWidgetListener* aListener)
{
mPreviouslyAttachedWidgetListener = aListener;
}
void nsBaseWidget::SetAttachedWidgetListener(nsIWidgetListener* aListener)
{
mAttachedWidgetListener = aListener;
}
//-------------------------------------------------------------------------
//
// Close this nsBaseWidget
//
//-------------------------------------------------------------------------
void nsBaseWidget::Destroy()
{
// Just in case our parent is the only ref to us
nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
// disconnect from the parent
nsIWidget *parent = GetParent();
if (parent) {
parent->RemoveChild(this);
}
#if defined(XP_WIN)
// Allow our scroll capture container to be cleaned up, if we have one.
mScrollCaptureContainer = nullptr;
#endif
}
//-------------------------------------------------------------------------
//
// Get this nsBaseWidget parent
//
//-------------------------------------------------------------------------
nsIWidget* nsBaseWidget::GetParent(void)
{
return nullptr;
}
//-------------------------------------------------------------------------
//
// Get this nsBaseWidget top level widget
//
//-------------------------------------------------------------------------
nsIWidget* nsBaseWidget::GetTopLevelWidget()
{
nsIWidget *topLevelWidget = nullptr, *widget = this;
while (widget) {
topLevelWidget = widget;
widget = widget->GetParent();
}
return topLevelWidget;
}
//-------------------------------------------------------------------------
//
// Get this nsBaseWidget's top (non-sheet) parent (if it's a sheet)
//
//-------------------------------------------------------------------------
nsIWidget* nsBaseWidget::GetSheetWindowParent(void)
{
return nullptr;
}
float nsBaseWidget::GetDPI()
{
return 96.0f;
}
CSSToLayoutDeviceScale nsIWidget::GetDefaultScale()
{
double devPixelsPerCSSPixel = DefaultScaleOverride();
if (devPixelsPerCSSPixel <= 0.0) {
devPixelsPerCSSPixel = GetDefaultScaleInternal();
}
return CSSToLayoutDeviceScale(devPixelsPerCSSPixel);
}
/* static */
double nsIWidget::DefaultScaleOverride()
{
// The number of device pixels per CSS pixel. A value <= 0 means choose
// automatically based on the DPI. A positive value is used as-is. This effectively
// controls the size of a CSS "px".
static float devPixelsPerCSSPixel = -1.0f;
static bool valueCached = false;
if (!valueCached) {
Preferences::AddFloatVarCache(&devPixelsPerCSSPixel,
"layout.css.devPixelsPerPx", -1.0f);
valueCached = true;
}
return devPixelsPerCSSPixel;
}
//-------------------------------------------------------------------------
//
// Add a child to the list of children
//
//-------------------------------------------------------------------------
void nsBaseWidget::AddChild(nsIWidget* aChild)
{
MOZ_ASSERT(!aChild->GetNextSibling() && !aChild->GetPrevSibling(),
"aChild not properly removed from its old child list");
if (!mFirstChild) {
mFirstChild = mLastChild = aChild;
} else {
// append to the list
MOZ_ASSERT(mLastChild);
MOZ_ASSERT(!mLastChild->GetNextSibling());
mLastChild->SetNextSibling(aChild);
aChild->SetPrevSibling(mLastChild);
mLastChild = aChild;
}
}
//-------------------------------------------------------------------------
//
// Remove a child from the list of children
//
//-------------------------------------------------------------------------
void nsBaseWidget::RemoveChild(nsIWidget* aChild)
{
#ifdef DEBUG
#ifdef XP_MACOSX
// nsCocoaWindow doesn't implement GetParent, so in that case parent will be
// null and we'll just have to do without this assertion.
nsIWidget* parent = aChild->GetParent();
NS_ASSERTION(!parent || parent == this, "Not one of our kids!");
#else
MOZ_RELEASE_ASSERT(aChild->GetParent() == this, "Not one of our kids!");
#endif
#endif
if (mLastChild == aChild) {
mLastChild = mLastChild->GetPrevSibling();
}
if (mFirstChild == aChild) {
mFirstChild = mFirstChild->GetNextSibling();
}
// Now remove from the list. Make sure that we pass ownership of the tail
// of the list correctly before we have aChild let go of it.
nsIWidget* prev = aChild->GetPrevSibling();
nsIWidget* next = aChild->GetNextSibling();
if (prev) {
prev->SetNextSibling(next);
}
if (next) {
next->SetPrevSibling(prev);
}
aChild->SetNextSibling(nullptr);
aChild->SetPrevSibling(nullptr);
}
//-------------------------------------------------------------------------
//
// Sets widget's position within its parent's child list.
//
//-------------------------------------------------------------------------
void nsBaseWidget::SetZIndex(int32_t aZIndex)
{
// Hold a ref to ourselves just in case, since we're going to remove
// from our parent.
nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
mZIndex = aZIndex;
// reorder this child in its parent's list.
auto* parent = static_cast<nsBaseWidget*>(GetParent());
if (parent) {
parent->RemoveChild(this);
// Scope sib outside the for loop so we can check it afterward
nsIWidget* sib = parent->GetFirstChild();
for ( ; sib; sib = sib->GetNextSibling()) {
int32_t childZIndex = GetZIndex();
if (aZIndex < childZIndex) {
// Insert ourselves before sib
nsIWidget* prev = sib->GetPrevSibling();
mNextSibling = sib;
mPrevSibling = prev;
sib->SetPrevSibling(this);
if (prev) {
prev->SetNextSibling(this);
} else {
NS_ASSERTION(sib == parent->mFirstChild, "Broken child list");
// We've taken ownership of sib, so it's safe to have parent let
// go of it
parent->mFirstChild = this;
}
PlaceBehind(eZPlacementBelow, sib, false);
break;
}
}
// were we added to the list?
if (!sib) {
parent->AddChild(this);
}
}
}
//-------------------------------------------------------------------------
//
// Maximize, minimize or restore the window. The BaseWidget implementation
// merely stores the state.
//
//-------------------------------------------------------------------------
void
nsBaseWidget::SetSizeMode(nsSizeMode aMode)
{
MOZ_ASSERT(aMode == nsSizeMode_Normal ||
aMode == nsSizeMode_Minimized ||
aMode == nsSizeMode_Maximized ||
aMode == nsSizeMode_Fullscreen);
mSizeMode = aMode;
}
//-------------------------------------------------------------------------
//
// Get this component cursor
//
//-------------------------------------------------------------------------
void
nsBaseWidget::SetCursor(nsCursor aCursor)
{
mCursor = aCursor;
}
nsresult
nsBaseWidget::SetCursor(imgIContainer* aCursor,
uint32_t aHotspotX, uint32_t aHotspotY)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
//-------------------------------------------------------------------------
//
// Window transparency methods
//
//-------------------------------------------------------------------------
void nsBaseWidget::SetTransparencyMode(nsTransparencyMode aMode) {
}
nsTransparencyMode nsBaseWidget::GetTransparencyMode() {
return eTransparencyOpaque;
}
bool
nsBaseWidget::IsWindowClipRegionEqual(const nsTArray<LayoutDeviceIntRect>& aRects)
{
return mClipRects &&
mClipRectCount == aRects.Length() &&
memcmp(mClipRects.get(), aRects.Elements(), sizeof(LayoutDeviceIntRect)*mClipRectCount) == 0;
}
void
nsBaseWidget::StoreWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects)
{
mClipRectCount = aRects.Length();
mClipRects = MakeUnique<LayoutDeviceIntRect[]>(mClipRectCount);
if (mClipRects) {
memcpy(mClipRects.get(), aRects.Elements(), sizeof(LayoutDeviceIntRect)*mClipRectCount);
}
}
void
nsBaseWidget::GetWindowClipRegion(nsTArray<LayoutDeviceIntRect>* aRects)
{
if (mClipRects) {
aRects->AppendElements(mClipRects.get(), mClipRectCount);
} else {
aRects->AppendElement(LayoutDeviceIntRect(0, 0, mBounds.Width(), mBounds.Height()));
}
}
const LayoutDeviceIntRegion
nsBaseWidget::RegionFromArray(const nsTArray<LayoutDeviceIntRect>& aRects)
{
LayoutDeviceIntRegion region;
for (uint32_t i = 0; i < aRects.Length(); ++i) {
region.Or(region, aRects[i]);
}
return region;
}
void
nsBaseWidget::ArrayFromRegion(const LayoutDeviceIntRegion& aRegion,
nsTArray<LayoutDeviceIntRect>& aRects)
{
for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
aRects.AppendElement(iter.Get());
}
}
nsresult
nsBaseWidget::SetWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects,
bool aIntersectWithExisting)
{
if (!aIntersectWithExisting) {
StoreWindowClipRegion(aRects);
} else {
// get current rects
nsTArray<LayoutDeviceIntRect> currentRects;
GetWindowClipRegion(&currentRects);
// create region from them
LayoutDeviceIntRegion currentRegion = RegionFromArray(currentRects);
// create region from new rects
LayoutDeviceIntRegion newRegion = RegionFromArray(aRects);
// intersect regions
LayoutDeviceIntRegion intersection;
intersection.And(currentRegion, newRegion);
// create int rect array from intersection
nsTArray<LayoutDeviceIntRect> rects;
ArrayFromRegion(intersection, rects);
// store
StoreWindowClipRegion(rects);
}
return NS_OK;
}
/* virtual */ void
nsBaseWidget::PerformFullscreenTransition(FullscreenTransitionStage aStage,
uint16_t aDuration,
nsISupports* aData,
nsIRunnable* aCallback)
{
MOZ_ASSERT_UNREACHABLE(
"Should never call PerformFullscreenTransition on nsBaseWidget");
}
//-------------------------------------------------------------------------
//
// Put the window into full-screen mode
//
//-------------------------------------------------------------------------
void
nsBaseWidget::InfallibleMakeFullScreen(bool aFullScreen, nsIScreen* aScreen)
{
HideWindowChrome(aFullScreen);
nsCOMPtr<nsIScreen> screen = aScreen;
if (!screen) {
screen = GetWidgetScreen();
if (!screen) {
return;
}
}
if (aFullScreen) {
if (!mOriginalBounds) {
mOriginalBounds = new LayoutDeviceIntRect();
}
*mOriginalBounds = GetScreenBounds();
// Move to top-left corner of screen and size to the screen dimensions
int32_t left, top, width, height;
if (NS_SUCCEEDED(screen->GetRectDisplayPix(&left, &top, &width, &height))) {
Resize(left, top, width, height, true);
}
} else if (mOriginalBounds) {
int32_t left, top, width, height;
if (NS_FAILED(screen->GetAvailRectDisplayPix(&left, &top,
&width, &height))) {
return;
}
gfx::Rect screenRect(left, top, width, height);
gfx::Rect rect;
if (BoundsUseDesktopPixels()) {
DesktopRect deskRect = *mOriginalBounds / GetDesktopToDeviceScale();
rect = deskRect.ToUnknownRect();
} else {
rect = gfx::Rect(mOriginalBounds->ToUnknownRect());
}
rect = rect.MoveInsideAndClamp(screenRect);
Resize(rect.x, rect.y, rect.width, rect.height, true);
}
}
nsresult
nsBaseWidget::MakeFullScreen(bool aFullScreen, nsIScreen* aScreen)
{
InfallibleMakeFullScreen(aFullScreen, aScreen);
return NS_OK;
}
nsBaseWidget::AutoLayerManagerSetup::AutoLayerManagerSetup(
nsBaseWidget* aWidget, gfxContext* aTarget,
BufferMode aDoubleBuffering, ScreenRotation aRotation)
: mWidget(aWidget)
{
LayerManager* lm = mWidget->GetLayerManager();
NS_ASSERTION(!lm || lm->GetBackendType() == LayersBackend::LAYERS_BASIC,
"AutoLayerManagerSetup instantiated for non-basic layer backend!");
if (lm) {
mLayerManager = lm->AsBasicLayerManager();
if (mLayerManager) {
mLayerManager->SetDefaultTarget(aTarget);
mLayerManager->SetDefaultTargetConfiguration(aDoubleBuffering, aRotation);
}
}
}
nsBaseWidget::AutoLayerManagerSetup::~AutoLayerManagerSetup()
{
if (mLayerManager) {
mLayerManager->SetDefaultTarget(nullptr);
mLayerManager->SetDefaultTargetConfiguration(mozilla::layers::BufferMode::BUFFER_NONE, ROTATION_0);
}
}
bool nsBaseWidget::IsSmallPopup() const
{
return mWindowType == eWindowType_popup && mPopupType != ePopupTypePanel;
}
bool
nsBaseWidget::ComputeShouldAccelerate()
{
if (gfx::gfxVars::UseWebRender() && !AllowWebRenderForThisWindow()) {
// If WebRender is enabled, non-WebRender widgets use the basic compositor
// (at least for now), even though they would get an accelerated compositor
// if WebRender wasn't enabled.
return false;
}
return gfx::gfxConfig::IsEnabled(gfx::Feature::HW_COMPOSITING) &&
WidgetTypeSupportsAcceleration();
}
bool
nsBaseWidget::UseAPZ()
{
return (gfxPlatform::AsyncPanZoomEnabled() &&
(WindowType() == eWindowType_toplevel ||
WindowType() == eWindowType_child ||
(WindowType() == eWindowType_popup && HasRemoteContent() &&
gfxPrefs::APZPopupsEnabled())));
}
bool
nsBaseWidget::AllowWebRenderForThisWindow()
{
return WindowType() == eWindowType_toplevel ||
WindowType() == eWindowType_child ||
WindowType() == eWindowType_dialog ||
(WindowType() == eWindowType_popup && HasRemoteContent());
}
void nsBaseWidget::CreateCompositor()
{
LayoutDeviceIntRect rect = GetBounds();
CreateCompositor(rect.Width(), rect.Height());
}
already_AddRefed<GeckoContentController>
nsBaseWidget::CreateRootContentController()
{
RefPtr<GeckoContentController> controller = new ChromeProcessController(this, mAPZEventState, mAPZC);
return controller.forget();
}
void nsBaseWidget::ConfigureAPZCTreeManager()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mAPZC);
ConfigureAPZControllerThread();
float dpi = GetDPI();
// On Android the main thread is not the controller thread
APZThreadUtils::RunOnControllerThread(NewRunnableMethod<float>(
"layers::IAPZCTreeManager::SetDPI",
mAPZC,
&IAPZCTreeManager::SetDPI,
dpi));
if (gfxPrefs::APZKeyboardEnabled()) {
KeyboardMap map = nsXBLWindowKeyHandler::CollectKeyboardShortcuts();
// On Android the main thread is not the controller thread
APZThreadUtils::RunOnControllerThread(NewRunnableMethod<KeyboardMap>(
"layers::IAPZCTreeManager::SetKeyboardMap",
mAPZC,
&IAPZCTreeManager::SetKeyboardMap,
map));
}
RefPtr<IAPZCTreeManager> treeManager = mAPZC; // for capture by the lambdas
ContentReceivedInputBlockCallback callback(
[treeManager](const ScrollableLayerGuid& aGuid,
uint64_t aInputBlockId,
bool aPreventDefault)
{
MOZ_ASSERT(NS_IsMainThread());
APZThreadUtils::RunOnControllerThread(NewRunnableMethod<uint64_t, bool>(
"layers::IAPZCTreeManager::ContentReceivedInputBlock",
treeManager,
&IAPZCTreeManager::ContentReceivedInputBlock,
aInputBlockId,
aPreventDefault));
});
mAPZEventState = new APZEventState(this, std::move(callback));
mSetAllowedTouchBehaviorCallback = [treeManager](uint64_t aInputBlockId,
const nsTArray<TouchBehaviorFlags>& aFlags)
{
MOZ_ASSERT(NS_IsMainThread());
APZThreadUtils::RunOnControllerThread(
NewRunnableMethod<uint64_t,
StoreCopyPassByLRef<nsTArray<TouchBehaviorFlags>>>(
"layers::IAPZCTreeManager::SetAllowedTouchBehavior",
treeManager,
&IAPZCTreeManager::SetAllowedTouchBehavior,
aInputBlockId,
aFlags));
};
mRootContentController = CreateRootContentController();
if (mRootContentController) {
mCompositorSession->SetContentController(mRootContentController);
}
// When APZ is enabled, we can actually enable raw touch events because we
// have code that can deal with them properly. If APZ is not enabled, this
// function doesn't get called.
if (Preferences::GetInt("dom.w3c_touch_events.enabled", 0) ||
Preferences::GetBool("dom.w3c_pointer_events.enabled", false)) {
RegisterTouchWindow();
}
}
void nsBaseWidget::ConfigureAPZControllerThread()
{
// By default the controller thread is the main thread.
APZThreadUtils::SetControllerThread(MessageLoop::current());
}
void
nsBaseWidget::SetConfirmedTargetAPZC(uint64_t aInputBlockId,
const nsTArray<ScrollableLayerGuid>& aTargets) const
{
APZThreadUtils::RunOnControllerThread(
NewRunnableMethod<uint64_t,
StoreCopyPassByRRef<nsTArray<ScrollableLayerGuid>>>(
"layers::IAPZCTreeManager::SetTargetAPZC",
mAPZC,
&IAPZCTreeManager::SetTargetAPZC,
aInputBlockId,
aTargets));
}
void
nsBaseWidget::UpdateZoomConstraints(const uint32_t& aPresShellId,
const FrameMetrics::ViewID& aViewId,
const Maybe<ZoomConstraints>& aConstraints)
{
if (!mCompositorSession || !mAPZC) {
if (mInitialZoomConstraints) {
MOZ_ASSERT(mInitialZoomConstraints->mPresShellID == aPresShellId);
MOZ_ASSERT(mInitialZoomConstraints->mViewID == aViewId);
if (!aConstraints) {
mInitialZoomConstraints.reset();
}
}
if (aConstraints) {
// We have some constraints, but the compositor and APZC aren't created yet.
// Save these so we can use them later.
mInitialZoomConstraints = Some(InitialZoomConstraints(aPresShellId, aViewId, aConstraints.ref()));
}
return;
}
LayersId layersId = mCompositorSession->RootLayerTreeId();
mAPZC->UpdateZoomConstraints(ScrollableLayerGuid(layersId, aPresShellId, aViewId),
aConstraints);
}
bool
nsBaseWidget::AsyncPanZoomEnabled() const
{
return !!mAPZC;
}
nsEventStatus
nsBaseWidget::ProcessUntransformedAPZEvent(WidgetInputEvent* aEvent,
const ScrollableLayerGuid& aGuid,
uint64_t aInputBlockId,
nsEventStatus aApzResponse)
{
MOZ_ASSERT(NS_IsMainThread());
InputAPZContext context(aGuid, aInputBlockId, aApzResponse);
// If this is an event that the APZ has targeted to an APZC in the root
// process, apply that APZC's callback-transform before dispatching the
// event. If the event is instead targeted to an APZC in the child process,
// the transform will be applied in the child process before dispatching
// the event there (see e.g. TabChild::RecvRealTouchEvent()).
if (aGuid.mLayersId == mCompositorSession->RootLayerTreeId()) {
APZCCallbackHelper::ApplyCallbackTransform(*aEvent, aGuid,
GetDefaultScale());
}
// Make a copy of the original event for the APZCCallbackHelper helpers that
// we call later, because the event passed to DispatchEvent can get mutated in
// ways that we don't want (i.e. touch points can get stripped out).
nsEventStatus status;
UniquePtr<WidgetEvent> original(aEvent->Duplicate());
DispatchEvent(aEvent, status);
if (mAPZC && !InputAPZContext::WasRoutedToChildProcess() && aInputBlockId) {
// EventStateManager did not route the event into the child process.
// It's safe to communicate to APZ that the event has been processed.
UniquePtr<DisplayportSetListener> postLayerization;
if (WidgetTouchEvent* touchEvent = aEvent->AsTouchEvent()) {
if (touchEvent->mMessage == eTouchStart) {
if (gfxPrefs::TouchActionEnabled()) {
APZCCallbackHelper::SendSetAllowedTouchBehaviorNotification(this,
GetDocument(), *(original->AsTouchEvent()), aInputBlockId,
mSetAllowedTouchBehaviorCallback);
}
postLayerization = APZCCallbackHelper::SendSetTargetAPZCNotification(this, GetDocument(),
*(original->AsTouchEvent()), aGuid, aInputBlockId);
}
mAPZEventState->ProcessTouchEvent(*touchEvent, aGuid, aInputBlockId,
aApzResponse, status);
} else if (WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent()) {
MOZ_ASSERT(wheelEvent->mFlags.mHandledByAPZ);
postLayerization = APZCCallbackHelper::SendSetTargetAPZCNotification(this, GetDocument(),
*(original->AsWheelEvent()), aGuid, aInputBlockId);
if (wheelEvent->mCanTriggerSwipe) {
ReportSwipeStarted(aInputBlockId, wheelEvent->TriggersSwipe());
}
mAPZEventState->ProcessWheelEvent(*wheelEvent, aGuid, aInputBlockId);
} else if (WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent()) {
MOZ_ASSERT(mouseEvent->mFlags.mHandledByAPZ);
postLayerization = APZCCallbackHelper::SendSetTargetAPZCNotification(this, GetDocument(),
*(original->AsMouseEvent()), aGuid, aInputBlockId);
mAPZEventState->ProcessMouseEvent(*mouseEvent, aGuid, aInputBlockId);
}
if (postLayerization && postLayerization->Register()) {
Unused << postLayerization.release();
}
}
return status;
}
class DispatchWheelEventOnMainThread : public Runnable
{
public:
DispatchWheelEventOnMainThread(const ScrollWheelInput& aWheelInput,
nsBaseWidget* aWidget,
nsEventStatus aAPZResult,
uint64_t aInputBlockId,
ScrollableLayerGuid aGuid)
: mozilla::Runnable("DispatchWheelEventOnMainThread")
, mWheelInput(aWheelInput)
, mWidget(aWidget)
, mAPZResult(aAPZResult)
, mInputBlockId(aInputBlockId)
, mGuid(aGuid)
{
}
NS_IMETHOD Run() override
{
WidgetWheelEvent wheelEvent = mWheelInput.ToWidgetWheelEvent(mWidget);
mWidget->ProcessUntransformedAPZEvent(&wheelEvent, mGuid, mInputBlockId, mAPZResult);
return NS_OK;
}
private:
ScrollWheelInput mWheelInput;
nsBaseWidget* mWidget;
nsEventStatus mAPZResult;
uint64_t mInputBlockId;
ScrollableLayerGuid mGuid;
};
class DispatchWheelInputOnControllerThread : public Runnable
{
public:
DispatchWheelInputOnControllerThread(const WidgetWheelEvent& aWheelEvent,
IAPZCTreeManager* aAPZC,
nsBaseWidget* aWidget)
: mozilla::Runnable("DispatchWheelInputOnControllerThread")
, mMainMessageLoop(MessageLoop::current())
, mWheelInput(aWheelEvent)
, mAPZC(aAPZC)
, mWidget(aWidget)
, mInputBlockId(0)
{
}
NS_IMETHOD Run() override
{
nsEventStatus result = mAPZC->InputBridge()->ReceiveInputEvent(mWheelInput, &mGuid, &mInputBlockId);
if (result == nsEventStatus_eConsumeNoDefault) {
return NS_OK;
}
RefPtr<Runnable> r = new DispatchWheelEventOnMainThread(mWheelInput, mWidget, result, mInputBlockId, mGuid);
mMainMessageLoop->PostTask(r.forget());
return NS_OK;
}
private:
MessageLoop* mMainMessageLoop;
ScrollWheelInput mWheelInput;
RefPtr<IAPZCTreeManager> mAPZC;
nsBaseWidget* mWidget;
uint64_t mInputBlockId;
ScrollableLayerGuid mGuid;
};
void
nsBaseWidget::DispatchTouchInput(MultiTouchInput& aInput)
{
MOZ_ASSERT(NS_IsMainThread());
if (mAPZC) {
MOZ_ASSERT(APZThreadUtils::IsControllerThread());
uint64_t inputBlockId = 0;
ScrollableLayerGuid guid;
nsEventStatus result = mAPZC->InputBridge()->ReceiveInputEvent(aInput, &guid, &inputBlockId);
if (result == nsEventStatus_eConsumeNoDefault) {
return;
}
WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
ProcessUntransformedAPZEvent(&event, guid, inputBlockId, result);
} else {
WidgetTouchEvent event = aInput.ToWidgetTouchEvent(this);
nsEventStatus status;
DispatchEvent(&event, status);
}
}
nsEventStatus
nsBaseWidget::DispatchInputEvent(WidgetInputEvent* aEvent)
{
MOZ_ASSERT(NS_IsMainThread());
if (mAPZC) {
if (APZThreadUtils::IsControllerThread()) {
uint64_t inputBlockId = 0;
ScrollableLayerGuid guid;
nsEventStatus result =
mAPZC->InputBridge()->ReceiveInputEvent(*aEvent, &guid, &inputBlockId);
if (result == nsEventStatus_eConsumeNoDefault) {
return result;
}
return ProcessUntransformedAPZEvent(aEvent, guid, inputBlockId, result);
}
WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent();
if (wheelEvent) {
RefPtr<Runnable> r =
new DispatchWheelInputOnControllerThread(*wheelEvent, mAPZC, this);
APZThreadUtils::RunOnControllerThread(r.forget());
return nsEventStatus_eConsumeDoDefault;
}
// Allow dispatching keyboard events on Gecko thread.
MOZ_ASSERT(aEvent->AsKeyboardEvent());
}
nsEventStatus status;
DispatchEvent(aEvent, status);
return status;
}
void
nsBaseWidget::DispatchEventToAPZOnly(mozilla::WidgetInputEvent* aEvent)
{
MOZ_ASSERT(NS_IsMainThread());
if (mAPZC) {
MOZ_ASSERT(APZThreadUtils::IsControllerThread());
uint64_t inputBlockId = 0;
ScrollableLayerGuid guid;
mAPZC->InputBridge()->ReceiveInputEvent(*aEvent, &guid, &inputBlockId);
}
}
// static
bool
nsBaseWidget::ShowContextMenuAfterMouseUp()
{
static bool gContextMenuAfterMouseUp = false;
static bool gContextMenuAfterMouseUpCached = false;
if (!gContextMenuAfterMouseUpCached) {
Preferences::AddBoolVarCache(&gContextMenuAfterMouseUp,
"ui.context_menus.after_mouseup",
false);
gContextMenuAfterMouseUpCached = true;
}
return gContextMenuAfterMouseUp;
}
nsIDocument*
nsBaseWidget::GetDocument() const
{
if (mWidgetListener) {
if (nsIPresShell* presShell = mWidgetListener->GetPresShell()) {
return presShell->GetDocument();
}
}
return nullptr;
}
void nsBaseWidget::CreateCompositorVsyncDispatcher()
{
// Parent directly listens to the vsync source whereas
// child process communicate via IPC
// Should be called AFTER gfxPlatform is initialized
if (XRE_IsParentProcess()) {
if (!mCompositorVsyncDispatcherLock) {
mCompositorVsyncDispatcherLock = MakeUnique<Mutex>("mCompositorVsyncDispatcherLock");
}
MutexAutoLock lock(*mCompositorVsyncDispatcherLock.get());
mCompositorVsyncDispatcher = new CompositorVsyncDispatcher();
}
}
already_AddRefed<CompositorVsyncDispatcher>
nsBaseWidget::GetCompositorVsyncDispatcher()
{
MOZ_ASSERT(mCompositorVsyncDispatcherLock.get());
MutexAutoLock lock(*mCompositorVsyncDispatcherLock.get());
RefPtr<CompositorVsyncDispatcher> dispatcher = mCompositorVsyncDispatcher;
return dispatcher.forget();
}
already_AddRefed<LayerManager>
nsBaseWidget::CreateCompositorSession(int aWidth,
int aHeight,
CompositorOptions* aOptionsOut)
{
MOZ_ASSERT(aOptionsOut);
do {
CreateCompositorVsyncDispatcher();
gfx::GPUProcessManager* gpu = gfx::GPUProcessManager::Get();
// Make sure GPU process is ready for use.
// If it failed to connect to GPU process, GPU process usage is disabled in EnsureGPUReady().
// It could update gfxVars and gfxConfigs.
gpu->EnsureGPUReady();
// If widget type does not supports acceleration, we use ClientLayerManager
// even when gfxVars::UseWebRender() is true. WebRender could coexist only
// with BasicCompositor.
bool enableWR = gfx::gfxVars::UseWebRender() && WidgetTypeSupportsAcceleration()
&& AllowWebRenderForThisWindow();
bool enableAPZ = UseAPZ();
CompositorOptions options(enableAPZ, enableWR);
bool enableAL = gfx::gfxConfig::IsEnabled(gfx::Feature::ADVANCED_LAYERS);
options.SetUseAdvancedLayers(enableAL);
#ifdef MOZ_WIDGET_ANDROID
if (!GetNativeData(NS_JAVA_SURFACE)) {
options.SetInitiallyPaused(true);
}
#endif
RefPtr<LayerManager> lm;
if (options.UseWebRender()) {
lm = new WebRenderLayerManager(this);
} else {
lm = new ClientLayerManager(this);
}
bool retry = false;
mCompositorSession = gpu->CreateTopLevelCompositor(
this,
lm,
GetDefaultScale(),
options,
UseExternalCompositingSurface(),
gfx::IntSize(aWidth, aHeight),
&retry);
if (lm->AsWebRenderLayerManager() && mCompositorSession) {
TextureFactoryIdentifier textureFactoryIdentifier;
lm->AsWebRenderLayerManager()->Initialize(mCompositorSession->GetCompositorBridgeChild(),
wr::AsPipelineId(mCompositorSession->RootLayerTreeId()),
&textureFactoryIdentifier);
if (textureFactoryIdentifier.mParentBackend != LayersBackend::LAYERS_WR) {
retry = true;
DestroyCompositor();
gfx::GPUProcessManager::Get()->DisableWebRender(wr::WebRenderError::INITIALIZE);
}
}
// We need to retry in a loop because the act of failing to create the
// compositor can change our state (e.g. disable WebRender).
if (mCompositorSession || !retry) {
*aOptionsOut = options;
return lm.forget();
}
} while (true);
}
void nsBaseWidget::CreateCompositor(int aWidth, int aHeight)
{
// This makes sure that gfxPlatforms gets initialized if it hasn't by now.
gfxPlatform::GetPlatform();
MOZ_ASSERT(gfxPlatform::UsesOffMainThreadCompositing(),
"This function assumes OMTC");
MOZ_ASSERT(!mCompositorSession && !mCompositorBridgeChild,
"Should have properly cleaned up the previous PCompositor pair beforehand");
if (mCompositorBridgeChild) {
mCompositorBridgeChild->Destroy();
}
// Recreating this is tricky, as we may still have an old and we need
// to make sure it's properly destroyed by calling DestroyCompositor!
// If we've already received a shutdown notification, don't try
// create a new compositor.
if (!mShutdownObserver) {
return;
}
CompositorOptions options;
RefPtr<LayerManager> lm =
CreateCompositorSession(aWidth, aHeight, &options);
if (!lm) {
return;
}
MOZ_ASSERT(mCompositorSession);
mCompositorBridgeChild = mCompositorSession->GetCompositorBridgeChild();
SetCompositorWidgetDelegate(mCompositorSession->GetCompositorWidgetDelegate());
if (options.UseAPZ()) {
mAPZC = mCompositorSession->GetAPZCTreeManager();
ConfigureAPZCTreeManager();
} else {
mAPZC = nullptr;
}
if (mInitialZoomConstraints) {
UpdateZoomConstraints(mInitialZoomConstraints->mPresShellID,
mInitialZoomConstraints->mViewID,
Some(mInitialZoomConstraints->mConstraints));
mInitialZoomConstraints.reset();
}
if (lm->AsWebRenderLayerManager()) {
TextureFactoryIdentifier textureFactoryIdentifier = lm->GetTextureFactoryIdentifier();
MOZ_ASSERT(textureFactoryIdentifier.mParentBackend == LayersBackend::LAYERS_WR);
ImageBridgeChild::IdentifyCompositorTextureHost(textureFactoryIdentifier);
gfx::VRManagerChild::IdentifyTextureHost(textureFactoryIdentifier);
}
ShadowLayerForwarder* lf = lm->AsShadowForwarder();
if (lf) {
// lf is non-null if we are creating a ClientLayerManager above
TextureFactoryIdentifier textureFactoryIdentifier;
PLayerTransactionChild* shadowManager = nullptr;
nsTArray<LayersBackend> backendHints;
gfxPlatform::GetPlatform()->GetCompositorBackends(ComputeShouldAccelerate(), backendHints);
bool success = false;
if (!backendHints.IsEmpty()) {
shadowManager =
mCompositorBridgeChild->SendPLayerTransactionConstructor(backendHints, LayersId{0});
if (shadowManager->SendGetTextureFactoryIdentifier(&textureFactoryIdentifier) &&
textureFactoryIdentifier.mParentBackend != LayersBackend::LAYERS_NONE)
{
success = true;
}
}
if (!success) {
NS_WARNING("Failed to create an OMT compositor.");
DestroyCompositor();
mLayerManager = nullptr;
return;
}
lf->SetShadowManager(shadowManager);
lm->UpdateTextureFactoryIdentifier(textureFactoryIdentifier);
// Some popup or transparent widgets may use a different backend than the
// compositors used with ImageBridge and VR (and more generally web content).
if (WidgetTypeSupportsAcceleration()) {
ImageBridgeChild::IdentifyCompositorTextureHost(textureFactoryIdentifier);
gfx::VRManagerChild::IdentifyTextureHost(textureFactoryIdentifier);
}
}
WindowUsesOMTC();
mLayerManager = lm.forget();
// Only track compositors for top-level windows, since other window types
// may use the basic compositor. Except on the OS X - see bug 1306383
#if defined(XP_MACOSX)
bool getCompositorFromThisWindow = true;
#else
bool getCompositorFromThisWindow = (mWindowType == eWindowType_toplevel);
#endif
if (getCompositorFromThisWindow) {
gfxPlatform::GetPlatform()->NotifyCompositorCreated(mLayerManager->GetCompositorBackendType());
}
}
void nsBaseWidget::NotifyCompositorSessionLost(CompositorSession* aSession)
{
MOZ_ASSERT(aSession == mCompositorSession);
DestroyLayerManager();
}
bool nsBaseWidget::ShouldUseOffMainThreadCompositing()
{
return gfxPlatform::UsesOffMainThreadCompositing();
}
LayerManager* nsBaseWidget::GetLayerManager(PLayerTransactionChild* aShadowManager,
LayersBackend aBackendHint,
LayerManagerPersistence aPersistence)
{
if (!mLayerManager) {
if (!mShutdownObserver) {
// We are shutting down, do not try to re-create a LayerManager
return nullptr;
}
// Try to use an async compositor first, if possible
if (ShouldUseOffMainThreadCompositing()) {
// e10s uses the parameter to pass in the shadow manager from the TabChild
// so we don't expect to see it there since this doesn't support e10s.
NS_ASSERTION(aShadowManager == nullptr, "Async Compositor not supported with e10s");
CreateCompositor();
}
if (!mLayerManager) {
mLayerManager = CreateBasicLayerManager();
}
}
return mLayerManager;
}
LayerManager* nsBaseWidget::CreateBasicLayerManager()
{
return new BasicLayerManager(this);
}
CompositorBridgeChild* nsBaseWidget::GetRemoteRenderer()
{
return mCompositorBridgeChild;
}
already_AddRefed<gfx::DrawTarget>
nsBaseWidget::StartRemoteDrawing()
{
if (recordreplay::IsRecordingOrReplaying()) {
return recordreplay::child::DrawTargetForRemoteDrawing(mBounds.Size());
}
return nullptr;
}
uint32_t
nsBaseWidget::GetGLFrameBufferFormat()
{
return LOCAL_GL_RGBA;
}
//-------------------------------------------------------------------------
//
// Destroy the window
//
//-------------------------------------------------------------------------
void nsBaseWidget::OnDestroy()
{
if (mTextEventDispatcher) {
mTextEventDispatcher->OnDestroyWidget();
// Don't release it until this widget actually released because after this
// is called, TextEventDispatcher() may create it again.
}
// If this widget is being destroyed, let the APZ code know to drop references
// to this widget. Callers of this function all should be holding a deathgrip
// on this widget already.
ReleaseContentController();
}
void
nsBaseWidget::MoveClient(double aX, double aY)
{
LayoutDeviceIntPoint clientOffset(GetClientOffset());
// GetClientOffset returns device pixels; scale back to desktop pixels
// if that's what this widget uses for the Move/Resize APIs
if (BoundsUseDesktopPixels()) {
DesktopPoint desktopOffset = clientOffset / GetDesktopToDeviceScale();
Move(aX - desktopOffset.x, aY - desktopOffset.y);
} else {
Move(aX - clientOffset.x, aY - clientOffset.y);
}
}
void
nsBaseWidget::ResizeClient(double aWidth, double aHeight, bool aRepaint)
{
NS_ASSERTION((aWidth >=0) , "Negative width passed to ResizeClient");
NS_ASSERTION((aHeight >=0), "Negative height passed to ResizeClient");
LayoutDeviceIntRect clientBounds = GetClientBounds();
// GetClientBounds and mBounds are device pixels; scale back to desktop pixels
// if that's what this widget uses for the Move/Resize APIs
if (BoundsUseDesktopPixels()) {
DesktopSize desktopDelta =
(LayoutDeviceIntSize(mBounds.Width(), mBounds.Height()) -
clientBounds.Size()) / GetDesktopToDeviceScale();
Resize(aWidth + desktopDelta.width, aHeight + desktopDelta.height,
aRepaint);
} else {
Resize(mBounds.Width() + (aWidth - clientBounds.Width()),
mBounds.Height() + (aHeight - clientBounds.Height()), aRepaint);
}
}
void
nsBaseWidget::ResizeClient(double aX,
double aY,
double aWidth,
double aHeight,
bool aRepaint)
{
NS_ASSERTION((aWidth >=0) , "Negative width passed to ResizeClient");
NS_ASSERTION((aHeight >=0), "Negative height passed to ResizeClient");
LayoutDeviceIntRect clientBounds = GetClientBounds();
LayoutDeviceIntPoint clientOffset = GetClientOffset();
if (BoundsUseDesktopPixels()) {
DesktopToLayoutDeviceScale scale = GetDesktopToDeviceScale();
DesktopPoint desktopOffset = clientOffset / scale;
DesktopSize desktopDelta =
(LayoutDeviceIntSize(mBounds.Width(), mBounds.Height()) -
clientBounds.Size()) / scale;
Resize(aX - desktopOffset.x, aY - desktopOffset.y,
aWidth + desktopDelta.width, aHeight + desktopDelta.height,
aRepaint);
} else {
Resize(aX - clientOffset.x, aY - clientOffset.y,
aWidth + mBounds.Width() - clientBounds.Width(),
aHeight + mBounds.Height() - clientBounds.Height(),
aRepaint);
}
}
//-------------------------------------------------------------------------
//
// Bounds
//
//-------------------------------------------------------------------------
/**
* If the implementation of nsWindow supports borders this method MUST be overridden
*
**/
LayoutDeviceIntRect
nsBaseWidget::GetClientBounds()
{
return GetBounds();
}
/**
* If the implementation of nsWindow supports borders this method MUST be overridden
*
**/
LayoutDeviceIntRect
nsBaseWidget::GetBounds()
{
return mBounds;
}
/**
* If the implementation of nsWindow uses a local coordinate system within the window,
* this method must be overridden
*
**/
LayoutDeviceIntRect
nsBaseWidget::GetScreenBounds()
{
return GetBounds();
}
nsresult
nsBaseWidget::GetRestoredBounds(LayoutDeviceIntRect& aRect)
{
if (SizeMode() != nsSizeMode_Normal) {
return NS_ERROR_FAILURE;
}
aRect = GetScreenBounds();
return NS_OK;
}
LayoutDeviceIntPoint
nsBaseWidget::GetClientOffset()
{
return LayoutDeviceIntPoint(0, 0);
}
nsresult
nsBaseWidget::SetNonClientMargins(LayoutDeviceIntMargin &margins)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
uint32_t nsBaseWidget::GetMaxTouchPoints() const
{
return 0;
}
bool
nsBaseWidget::HasPendingInputEvent()
{
return false;
}
bool
nsBaseWidget::ShowsResizeIndicator(LayoutDeviceIntRect* aResizerRect)
{
return false;
}
/**
* Modifies aFile to point at an icon file with the given name and suffix. The
* suffix may correspond to a file extension with leading '.' if appropriate.
* Returns true if the icon file exists and can be read.
*/
static bool
ResolveIconNameHelper(nsIFile *aFile,
const nsAString &aIconName,
const nsAString &aIconSuffix)
{
aFile->Append(NS_LITERAL_STRING("icons"));
aFile->Append(NS_LITERAL_STRING("default"));
aFile->Append(aIconName + aIconSuffix);
bool readable;
return NS_SUCCEEDED(aFile->IsReadable(&readable)) && readable;
}
/**
* Resolve the given icon name into a local file object. This method is
* intended to be called by subclasses of nsBaseWidget. aIconSuffix is a
* platform specific icon file suffix (e.g., ".ico" under Win32).
*
* If no file is found matching the given parameters, then null is returned.
*/
void
nsBaseWidget::ResolveIconName(const nsAString &aIconName,
const nsAString &aIconSuffix,
nsIFile **aResult)
{
*aResult = nullptr;
nsCOMPtr<nsIProperties> dirSvc = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
if (!dirSvc)
return;
// first check auxilary chrome directories
nsCOMPtr<nsISimpleEnumerator> dirs;
dirSvc->Get(NS_APP_CHROME_DIR_LIST, NS_GET_IID(nsISimpleEnumerator),
getter_AddRefs(dirs));
if (dirs) {
bool hasMore;
while (NS_SUCCEEDED(dirs->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> element;
dirs->GetNext(getter_AddRefs(element));
if (!element)
continue;
nsCOMPtr<nsIFile> file = do_QueryInterface(element);
if (!file)
continue;
if (ResolveIconNameHelper(file, aIconName, aIconSuffix)) {
NS_ADDREF(*aResult = file);
return;
}
}
}
// then check the main app chrome directory
nsCOMPtr<nsIFile> file;
dirSvc->Get(NS_APP_CHROME_DIR, NS_GET_IID(nsIFile),
getter_AddRefs(file));
if (file && ResolveIconNameHelper(file, aIconName, aIconSuffix))
NS_ADDREF(*aResult = file);
}
void nsBaseWidget::SetSizeConstraints(const SizeConstraints& aConstraints)
{
mSizeConstraints = aConstraints;
// Popups are constrained during layout, and we don't want to synchronously
// paint from reflow, so bail out... This is not great, but it's no worse than
// what we used to do.
//
// The right fix here is probably making constraint changes go through the
// view manager and such.
if (mWindowType == eWindowType_popup) {
return;
}
// If the current size doesn't meet the new constraints, trigger a
// resize to apply it. Note that, we don't want to invoke Resize if
// the new constraints don't affect the current size, because Resize
// implementation on some platforms may touch other geometry even if
// the size don't need to change.
LayoutDeviceIntSize curSize = mBounds.Size();
LayoutDeviceIntSize clampedSize =
Max(aConstraints.mMinSize, Min(aConstraints.mMaxSize, curSize));
if (clampedSize != curSize) {
gfx::Size size;
if (BoundsUseDesktopPixels()) {
DesktopSize desktopSize = clampedSize / GetDesktopToDeviceScale();
size = desktopSize.ToUnknownSize();
} else {
size = gfx::Size(clampedSize.ToUnknownSize());
}
Resize(size.width, size.height, true);
}
}
const widget::SizeConstraints nsBaseWidget::GetSizeConstraints()
{
return mSizeConstraints;
}
// static
nsIRollupListener*
nsBaseWidget::GetActiveRollupListener()
{
// If set, then this is likely an <html:select> dropdown.
if (gRollupListener)
return gRollupListener;
return nsXULPopupManager::GetInstance();
}
void
nsBaseWidget::NotifyWindowDestroyed()
{
if (!mWidgetListener)
return;
nsCOMPtr<nsIXULWindow> window = mWidgetListener->GetXULWindow();
nsCOMPtr<nsIBaseWindow> xulWindow(do_QueryInterface(window));
if (xulWindow) {
xulWindow->Destroy();
}
}
void
nsBaseWidget::NotifyWindowMoved(int32_t aX, int32_t aY)
{
if (mWidgetListener) {
mWidgetListener->WindowMoved(this, aX, aY);
}
if (mIMEHasFocus && IMENotificationRequestsRef().WantPositionChanged()) {
NotifyIME(IMENotification(IMEMessage::NOTIFY_IME_OF_POSITION_CHANGE));
}
}
void
nsBaseWidget::NotifyPresShell(NotificationFunc aNotificationFunc)
{
if (!mWidgetListener) {
return;
}
nsIPresShell* presShell = mWidgetListener->GetPresShell();
if (presShell) {
(presShell->*aNotificationFunc)();
}
}
void
nsBaseWidget::NotifySizeMoveDone()
{
NotifyPresShell(&nsIPresShell::WindowSizeMoveDone);
}
void
nsBaseWidget::NotifySysColorChanged()
{
NotifyPresShell(&nsIPresShell::SysColorChanged);
}
void
nsBaseWidget::NotifyThemeChanged()
{
NotifyPresShell(&nsIPresShell::ThemeChanged);
}
void
nsBaseWidget::NotifyUIStateChanged(UIStateChangeType aShowAccelerators,
UIStateChangeType aShowFocusRings)
{
if (nsIDocument* doc = GetDocument()) {
nsPIDOMWindowOuter* win = doc->GetWindow();
if (win) {
win->SetKeyboardIndicators(aShowAccelerators, aShowFocusRings);
}
}
}
nsresult
nsBaseWidget::NotifyIME(const IMENotification& aIMENotification)
{
switch (aIMENotification.mMessage) {
case REQUEST_TO_COMMIT_COMPOSITION:
case REQUEST_TO_CANCEL_COMPOSITION:
// We should send request to IME only when there is a TextEventDispatcher
// instance (this means that this widget has dispatched at least one
// composition event or keyboard event) and the it has composition.
// Otherwise, there is nothing to do.
// Note that if current input transaction is for native input events,
// TextEventDispatcher::NotifyIME() will call
// TextEventDispatcherListener::NotifyIME().
if (mTextEventDispatcher && mTextEventDispatcher->IsComposing()) {
return mTextEventDispatcher->NotifyIME(aIMENotification);
}
return NS_OK;
default: {
if (aIMENotification.mMessage == NOTIFY_IME_OF_FOCUS) {
mIMEHasFocus = true;
}
EnsureTextEventDispatcher();
// TextEventDispatcher::NotifyIME() will always call
// TextEventDispatcherListener::NotifyIME(). I.e., even if current
// input transaction is for synthesized events for automated tests,
// notifications will be sent to native IME.
nsresult rv = mTextEventDispatcher->NotifyIME(aIMENotification);
if (aIMENotification.mMessage == NOTIFY_IME_OF_BLUR) {
mIMEHasFocus = false;
}
return rv;
}
}
}
void
nsBaseWidget::EnsureTextEventDispatcher()
{
if (mTextEventDispatcher) {
return;
}
mTextEventDispatcher = new TextEventDispatcher(this);
}
nsIWidget::NativeIMEContext
nsBaseWidget::GetNativeIMEContext()
{
if (mTextEventDispatcher && mTextEventDispatcher->GetPseudoIMEContext()) {
// If we already have a TextEventDispatcher and it's working with
// a TextInputProcessor, we need to return pseudo IME context since
// TextCompositionArray::IndexOf(nsIWidget*) should return a composition
// on the pseudo IME context in such case.
NativeIMEContext pseudoIMEContext;
pseudoIMEContext.InitWithRawNativeIMEContext(
mTextEventDispatcher->GetPseudoIMEContext());
return pseudoIMEContext;
}
return NativeIMEContext(this);
}
nsIWidget::TextEventDispatcher*
nsBaseWidget::GetTextEventDispatcher()
{
EnsureTextEventDispatcher();
return mTextEventDispatcher;
}
void*
nsBaseWidget::GetPseudoIMEContext()
{
TextEventDispatcher* dispatcher = GetTextEventDispatcher();
if (!dispatcher) {
return nullptr;
}
return dispatcher->GetPseudoIMEContext();
}
TextEventDispatcherListener*
nsBaseWidget::GetNativeTextEventDispatcherListener()
{
// TODO: If all platforms supported use of TextEventDispatcher for handling
// native IME and keyboard events, this method should be removed since
// in such case, this is overridden by all the subclasses.
return nullptr;
}
void
nsBaseWidget::ZoomToRect(const uint32_t& aPresShellId,
const FrameMetrics::ViewID& aViewId,
const CSSRect& aRect,
const uint32_t& aFlags)
{
if (!mCompositorSession || !mAPZC) {
return;
}
LayersId layerId = mCompositorSession->RootLayerTreeId();
APZThreadUtils::RunOnControllerThread(
NewRunnableMethod<ScrollableLayerGuid, CSSRect, uint32_t>(
"layers::IAPZCTreeManager::ZoomToRect",
mAPZC,
&IAPZCTreeManager::ZoomToRect,
ScrollableLayerGuid(layerId, aPresShellId, aViewId),
aRect,
aFlags));
}
#ifdef ACCESSIBILITY
a11y::Accessible*
nsBaseWidget::GetRootAccessible()
{
NS_ENSURE_TRUE(mWidgetListener, nullptr);
nsIPresShell* presShell = mWidgetListener->GetPresShell();
NS_ENSURE_TRUE(presShell, nullptr);
// If container is null then the presshell is not active. This often happens
// when a preshell is being held onto for fastback.
nsPresContext* presContext = presShell->GetPresContext();
NS_ENSURE_TRUE(presContext->GetContainerWeak(), nullptr);
// Accessible creation might be not safe so use IsSafeToRunScript to
// make sure it's not created at unsafe times.
nsAccessibilityService* accService = GetOrCreateAccService();
if (accService) {
return accService->GetRootDocumentAccessible(presShell, nsContentUtils::IsSafeToRunScript());
}
return nullptr;
}
#endif // ACCESSIBILITY
void
nsBaseWidget::StartAsyncScrollbarDrag(const AsyncDragMetrics& aDragMetrics)
{
if (!AsyncPanZoomEnabled()) {
return;
}
MOZ_ASSERT(XRE_IsParentProcess() && mCompositorSession);
LayersId layersId = mCompositorSession->RootLayerTreeId();
ScrollableLayerGuid guid(layersId, aDragMetrics.mPresShellId, aDragMetrics.mViewId);
APZThreadUtils::RunOnControllerThread(
NewRunnableMethod<ScrollableLayerGuid, AsyncDragMetrics>(
"layers::IAPZCTreeManager::StartScrollbarDrag",
mAPZC,
&IAPZCTreeManager::StartScrollbarDrag,
guid,
aDragMetrics));
}
bool
nsBaseWidget::StartAsyncAutoscroll(const ScreenPoint& aAnchorLocation,
const ScrollableLayerGuid& aGuid)
{
MOZ_ASSERT(XRE_IsParentProcess() && AsyncPanZoomEnabled());
return mAPZC->StartAutoscroll(aGuid, aAnchorLocation);
}
void
nsBaseWidget::StopAsyncAutoscroll(const ScrollableLayerGuid& aGuid)
{
MOZ_ASSERT(XRE_IsParentProcess() && AsyncPanZoomEnabled());
mAPZC->StopAutoscroll(aGuid);
}
already_AddRefed<nsIScreen>
nsBaseWidget::GetWidgetScreen()
{
nsCOMPtr<nsIScreenManager> screenManager;
screenManager = do_GetService("@mozilla.org/gfx/screenmanager;1");
if (!screenManager) {
return nullptr;
}
LayoutDeviceIntRect bounds = GetScreenBounds();
DesktopIntRect deskBounds = RoundedToInt(bounds / GetDesktopToDeviceScale());
nsCOMPtr<nsIScreen> screen;
screenManager->ScreenForRect(deskBounds.X(), deskBounds.Y(),
deskBounds.Width(), deskBounds.Height(),
getter_AddRefs(screen));
return screen.forget();
}
mozilla::DesktopToLayoutDeviceScale
nsBaseWidget::GetDesktopToDeviceScaleByScreen()
{
return (nsView::GetViewFor(this)->GetViewManager()->GetDeviceContext())->GetDesktopToDeviceScale();
}
nsresult
nsIWidget::SynthesizeNativeTouchTap(LayoutDeviceIntPoint aPoint, bool aLongTap,
nsIObserver* aObserver)
{
AutoObserverNotifier notifier(aObserver, "touchtap");
if (sPointerIdCounter > TOUCH_INJECT_MAX_POINTS) {
sPointerIdCounter = 0;
}
int pointerId = sPointerIdCounter;
sPointerIdCounter++;
nsresult rv = SynthesizeNativeTouchPoint(pointerId, TOUCH_CONTACT,
aPoint, 1.0, 90, nullptr);
if (NS_FAILED(rv)) {
return rv;
}
if (!aLongTap) {
return SynthesizeNativeTouchPoint(pointerId, TOUCH_REMOVE,
aPoint, 0, 0, nullptr);
}
// initiate a long tap
int elapse = Preferences::GetInt("ui.click_hold_context_menus.delay",
TOUCH_INJECT_LONG_TAP_DEFAULT_MSEC);
if (!mLongTapTimer) {
mLongTapTimer = NS_NewTimer();
if (!mLongTapTimer) {
SynthesizeNativeTouchPoint(pointerId, TOUCH_CANCEL,
aPoint, 0, 0, nullptr);
return NS_ERROR_UNEXPECTED;
}
// Windows requires recuring events, so we set this to a smaller window
// than the pref value.
int timeout = elapse;
if (timeout > TOUCH_INJECT_PUMP_TIMER_MSEC) {
timeout = TOUCH_INJECT_PUMP_TIMER_MSEC;
}
mLongTapTimer->InitWithNamedFuncCallback(
OnLongTapTimerCallback,
this,
timeout,
nsITimer::TYPE_REPEATING_SLACK,
"nsIWidget::SynthesizeNativeTouchTap");
}
// If we already have a long tap pending, cancel it. We only allow one long
// tap to be active at a time.
if (mLongTapTouchPoint) {
SynthesizeNativeTouchPoint(mLongTapTouchPoint->mPointerId, TOUCH_CANCEL,
mLongTapTouchPoint->mPosition, 0, 0, nullptr);
}
mLongTapTouchPoint =
MakeUnique<LongTapInfo>(pointerId, aPoint,
TimeDuration::FromMilliseconds(elapse),
aObserver);
notifier.SkipNotification(); // we'll do it in the long-tap callback
return NS_OK;
}
// static
void
nsIWidget::OnLongTapTimerCallback(nsITimer* aTimer, void* aClosure)
{
auto *self = static_cast<nsIWidget *>(aClosure);
if ((self->mLongTapTouchPoint->mStamp + self->mLongTapTouchPoint->mDuration) >
TimeStamp::Now()) {
#ifdef XP_WIN
// Windows needs us to keep pumping feedback to the digitizer, so update
// the pointer id with the same position.
self->SynthesizeNativeTouchPoint(self->mLongTapTouchPoint->mPointerId,
TOUCH_CONTACT,
self->mLongTapTouchPoint->mPosition,
1.0, 90, nullptr);
#endif
return;
}
AutoObserverNotifier notifier(self->mLongTapTouchPoint->mObserver, "touchtap");
// finished, remove the touch point
self->mLongTapTimer->Cancel();
self->mLongTapTimer = nullptr;
self->SynthesizeNativeTouchPoint(self->mLongTapTouchPoint->mPointerId,
TOUCH_REMOVE,
self->mLongTapTouchPoint->mPosition,
0, 0, nullptr);
self->mLongTapTouchPoint = nullptr;
}
nsresult
nsIWidget::ClearNativeTouchSequence(nsIObserver* aObserver)
{
AutoObserverNotifier notifier(aObserver, "cleartouch");
if (!mLongTapTimer) {
return NS_OK;
}
mLongTapTimer->Cancel();
mLongTapTimer = nullptr;
SynthesizeNativeTouchPoint(mLongTapTouchPoint->mPointerId, TOUCH_CANCEL,
mLongTapTouchPoint->mPosition, 0, 0, nullptr);
mLongTapTouchPoint = nullptr;
return NS_OK;
}
MultiTouchInput
nsBaseWidget::UpdateSynthesizedTouchState(MultiTouchInput* aState,
uint32_t aTime,
mozilla::TimeStamp aTimeStamp,
uint32_t aPointerId,
TouchPointerState aPointerState,
LayoutDeviceIntPoint aPoint,
double aPointerPressure,
uint32_t aPointerOrientation)
{
ScreenIntPoint pointerScreenPoint = ViewAs<ScreenPixel>(aPoint,
PixelCastJustification::LayoutDeviceIsScreenForBounds);
// We can't dispatch *aState directly because (a) dispatching
// it might inadvertently modify it and (b) in the case of touchend or
// touchcancel events aState will hold the touches that are
// still down whereas the input dispatched needs to hold the removed
// touch(es). We use |inputToDispatch| for this purpose.
MultiTouchInput inputToDispatch;
inputToDispatch.mInputType = MULTITOUCH_INPUT;
inputToDispatch.mTime = aTime;
inputToDispatch.mTimeStamp = aTimeStamp;
int32_t index = aState->IndexOfTouch((int32_t)aPointerId);
if (aPointerState == TOUCH_CONTACT) {
if (index >= 0) {
// found an existing touch point, update it
SingleTouchData& point = aState->mTouches[index];
point.mScreenPoint = pointerScreenPoint;
point.mRotationAngle = (float)aPointerOrientation;
point.mForce = (float)aPointerPressure;
inputToDispatch.mType = MultiTouchInput::MULTITOUCH_MOVE;
} else {
// new touch point, add it
aState->mTouches.AppendElement(SingleTouchData(
(int32_t)aPointerId,
pointerScreenPoint,
ScreenSize(0, 0),
(float)aPointerOrientation,
(float)aPointerPressure));
inputToDispatch.mType = MultiTouchInput::MULTITOUCH_START;
}
inputToDispatch.mTouches = aState->mTouches;
} else {
MOZ_ASSERT(aPointerState == TOUCH_REMOVE || aPointerState == TOUCH_CANCEL);
// a touch point is being lifted, so remove it from the stored list
if (index >= 0) {
aState->mTouches.RemoveElementAt(index);
}
inputToDispatch.mType = (aPointerState == TOUCH_REMOVE
? MultiTouchInput::MULTITOUCH_END
: MultiTouchInput::MULTITOUCH_CANCEL);
inputToDispatch.mTouches.AppendElement(SingleTouchData(
(int32_t)aPointerId,
pointerScreenPoint,
ScreenSize(0, 0),
(float)aPointerOrientation,
(float)aPointerPressure));
}
return inputToDispatch;
}
void
nsBaseWidget::NotifyLiveResizeStarted()
{
// If we have mLiveResizeListeners already non-empty, we should notify those
// listeners that the resize stopped before starting anew. In theory this
// should never happen because we shouldn't get nested live resize actions.
NotifyLiveResizeStopped();
MOZ_ASSERT(mLiveResizeListeners.IsEmpty());
// If we can get the active tab parent for the current widget, suppress
// the displayport on it during the live resize.
if (!mWidgetListener) {
return;
}
nsCOMPtr<nsIXULWindow> xulWindow = mWidgetListener->GetXULWindow();
if (!xulWindow) {
return;
}
mLiveResizeListeners = xulWindow->GetLiveResizeListeners();
for (uint32_t i = 0; i < mLiveResizeListeners.Length(); i++) {
mLiveResizeListeners[i]->LiveResizeStarted();
}
}
void
nsBaseWidget::NotifyLiveResizeStopped()
{
if (!mLiveResizeListeners.IsEmpty()) {
for (uint32_t i = 0; i < mLiveResizeListeners.Length(); i++) {
mLiveResizeListeners[i]->LiveResizeStopped();
}
mLiveResizeListeners.Clear();
}
}
void
nsBaseWidget::RegisterPluginWindowForRemoteUpdates()
{
#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
MOZ_ASSERT_UNREACHABLE("nsBaseWidget::RegisterPluginWindowForRemoteUpdates "
"not implemented!");
return;
#else
MOZ_ASSERT(NS_IsMainThread());
void* id = GetNativeData(NS_NATIVE_PLUGIN_ID);
if (!id) {
NS_WARNING("This is not a valid native widget!");
return;
}
MOZ_ASSERT(sPluginWidgetList);
sPluginWidgetList->Put(id, this);
#endif
}
void
nsBaseWidget::UnregisterPluginWindowForRemoteUpdates()
{
#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
MOZ_ASSERT_UNREACHABLE("nsBaseWidget::UnregisterPluginWindowForRemoteUpdates "
"not implemented!");
return;
#else
MOZ_ASSERT(NS_IsMainThread());
void* id = GetNativeData(NS_NATIVE_PLUGIN_ID);
if (!id) {
NS_WARNING("This is not a valid native widget!");
return;
}
MOZ_ASSERT(sPluginWidgetList);
sPluginWidgetList->Remove(id);
#endif
}
nsresult
nsBaseWidget::AsyncEnableDragDrop(bool aEnable)
{
RefPtr<nsBaseWidget> kungFuDeathGrip = this;
return NS_IdleDispatchToCurrentThread(
NS_NewRunnableFunction("AsyncEnableDragDropFn",
[this, aEnable, kungFuDeathGrip]() {
EnableDragDrop(aEnable);
}),
kAsyncDragDropTimeout);
}
// static
nsIWidget*
nsIWidget::LookupRegisteredPluginWindow(uintptr_t aWindowID)
{
#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
MOZ_ASSERT_UNREACHABLE("nsBaseWidget::LookupRegisteredPluginWindow "
"not implemented!");
return nullptr;
#else
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(sPluginWidgetList);
return sPluginWidgetList->GetWeak((void*)aWindowID);
#endif
}
// static
void
nsIWidget::UpdateRegisteredPluginWindowVisibility(uintptr_t aOwnerWidget,
nsTArray<uintptr_t>& aPluginIds)
{
#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
MOZ_ASSERT_UNREACHABLE("nsBaseWidget::UpdateRegisteredPluginWindowVisibility"
" not implemented!");
return;
#else
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(sPluginWidgetList);
// Our visible list is associated with a compositor which is associated with
// a specific top level window. We use the parent widget during iteration
// to skip the plugin widgets owned by other top level windows.
for (auto iter = sPluginWidgetList->Iter(); !iter.Done(); iter.Next()) {
const void* windowId = iter.Key();
nsIWidget* widget = iter.UserData();
MOZ_ASSERT(windowId);
MOZ_ASSERT(widget);
if (!widget->Destroyed()) {
if ((uintptr_t)widget->GetParent() == aOwnerWidget) {
widget->Show(aPluginIds.Contains((uintptr_t)windowId));
}
}
}
#endif
}
#if defined(XP_WIN)
// static
void
nsIWidget::CaptureRegisteredPlugins(uintptr_t aOwnerWidget)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(sPluginWidgetList);
// Our visible list is associated with a compositor which is associated with
// a specific top level window. We use the parent widget during iteration
// to skip the plugin widgets owned by other top level windows.
for (auto iter = sPluginWidgetList->Iter(); !iter.Done(); iter.Next()) {
DebugOnly<const void*> windowId = iter.Key();
nsIWidget* widget = iter.UserData();
MOZ_ASSERT(windowId);
MOZ_ASSERT(widget);
if (!widget->Destroyed() && widget->IsVisible()) {
if ((uintptr_t)widget->GetParent() == aOwnerWidget) {
widget->UpdateScrollCapture();
}
}
}
}
uint64_t
nsBaseWidget::CreateScrollCaptureContainer()
{
mScrollCaptureContainer =
LayerManager::CreateImageContainer(ImageContainer::ASYNCHRONOUS);
if (!mScrollCaptureContainer) {
NS_WARNING("Failed to create ImageContainer for widget image capture.");
return ImageContainer::sInvalidAsyncContainerId;
}
return mScrollCaptureContainer->GetAsyncContainerHandle().Value();
}
void
nsBaseWidget::UpdateScrollCapture()
{
// Don't capture if no container or no size.
if (!mScrollCaptureContainer || mBounds.IsEmpty()) {
return;
}
// If the derived class cannot take a snapshot, for example due to clipping,
// then it is responsible for creating a fallback. If null is returned, this
// means that we want to keep the existing snapshot.
RefPtr<gfx::SourceSurface> snapshot = CreateScrollSnapshot();
if (!snapshot) {
return;
}
ImageContainer::NonOwningImage holder(new SourceSurfaceImage(snapshot));
AutoTArray<ImageContainer::NonOwningImage, 1> imageList;
imageList.AppendElement(holder);
mScrollCaptureContainer->SetCurrentImages(imageList);
}
void
nsBaseWidget::DefaultFillScrollCapture(DrawTarget* aSnapshotDrawTarget)
{
gfx::IntSize dtSize = aSnapshotDrawTarget->GetSize();
aSnapshotDrawTarget->FillRect(
gfx::Rect(0, 0, dtSize.width, dtSize.height),
gfx::ColorPattern(gfx::Color::FromABGR(kScrollCaptureFillColor)),
gfx::DrawOptions(1.f, gfx::CompositionOp::OP_SOURCE));
aSnapshotDrawTarget->Flush();
}
#endif
const IMENotificationRequests&
nsIWidget::IMENotificationRequestsRef()
{
TextEventDispatcher* dispatcher = GetTextEventDispatcher();
return dispatcher->IMENotificationRequestsRef();
}
nsresult
nsIWidget::OnWindowedPluginKeyEvent(const NativeEventData& aKeyEventData,
nsIKeyEventInPluginCallback* aCallback)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
void
nsIWidget::PostHandleKeyEvent(mozilla::WidgetKeyboardEvent* aEvent)
{
}
void
nsIWidget::GetEditCommands(nsIWidget::NativeKeyBindingsType aType,
const WidgetKeyboardEvent& aEvent,
nsTArray<CommandInt>& aCommands)
{
MOZ_ASSERT(aEvent.IsTrusted());
MOZ_ASSERT(aCommands.IsEmpty());
}
already_AddRefed<nsIBidiKeyboard>
nsIWidget::CreateBidiKeyboard()
{
if (XRE_IsContentProcess()) {
return CreateBidiKeyboardContentProcess();
}
return CreateBidiKeyboardInner();
}
#ifdef ANDROID
already_AddRefed<nsIBidiKeyboard>
nsIWidget::CreateBidiKeyboardInner()
{
// no bidi keyboard implementation
return nullptr;
}
#endif
namespace mozilla {
namespace widget {
const char*
ToChar(InputContext::Origin aOrigin)
{
switch (aOrigin) {
case InputContext::ORIGIN_MAIN:
return "ORIGIN_MAIN";
case InputContext::ORIGIN_CONTENT:
return "ORIGIN_CONTENT";
default:
return "Unexpected value";
}
}
const char*
ToChar(IMEMessage aIMEMessage)
{
switch (aIMEMessage) {
case NOTIFY_IME_OF_NOTHING:
return "NOTIFY_IME_OF_NOTHING";
case NOTIFY_IME_OF_FOCUS:
return "NOTIFY_IME_OF_FOCUS";
case NOTIFY_IME_OF_BLUR:
return "NOTIFY_IME_OF_BLUR";
case NOTIFY_IME_OF_SELECTION_CHANGE:
return "NOTIFY_IME_OF_SELECTION_CHANGE";
case NOTIFY_IME_OF_TEXT_CHANGE:
return "NOTIFY_IME_OF_TEXT_CHANGE";
case NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED:
return "NOTIFY_IME_OF_COMPOSITION_EVENT_HANDLED";
case NOTIFY_IME_OF_POSITION_CHANGE:
return "NOTIFY_IME_OF_POSITION_CHANGE";
case NOTIFY_IME_OF_MOUSE_BUTTON_EVENT:
return "NOTIFY_IME_OF_MOUSE_BUTTON_EVENT";
case REQUEST_TO_COMMIT_COMPOSITION:
return "REQUEST_TO_COMMIT_COMPOSITION";
case REQUEST_TO_CANCEL_COMPOSITION:
return "REQUEST_TO_CANCEL_COMPOSITION";
default:
return "Unexpected value";
}
}
void
NativeIMEContext::Init(nsIWidget* aWidget)
{
if (!aWidget) {
mRawNativeIMEContext = reinterpret_cast<uintptr_t>(nullptr);
mOriginProcessID = static_cast<uint64_t>(-1);
return;
}
if (!XRE_IsContentProcess()) {
mRawNativeIMEContext = reinterpret_cast<uintptr_t>(
aWidget->GetNativeData(NS_RAW_NATIVE_IME_CONTEXT));
mOriginProcessID = 0;
return;
}
// If this is created in a child process, aWidget is an instance of
// PuppetWidget which doesn't support NS_RAW_NATIVE_IME_CONTEXT.
// Instead of that PuppetWidget::GetNativeIMEContext() returns cached
// native IME context of the parent process.
*this = aWidget->GetNativeIMEContext();
}
void
NativeIMEContext::InitWithRawNativeIMEContext(void* aRawNativeIMEContext)
{
if (NS_WARN_IF(!aRawNativeIMEContext)) {
mRawNativeIMEContext = reinterpret_cast<uintptr_t>(nullptr);
mOriginProcessID = static_cast<uint64_t>(-1);
return;
}
mRawNativeIMEContext = reinterpret_cast<uintptr_t>(aRawNativeIMEContext);
mOriginProcessID =
XRE_IsContentProcess() ? ContentChild::GetSingleton()->GetID() : 0;
}
void
IMENotification::TextChangeDataBase::MergeWith(
const IMENotification::TextChangeDataBase& aOther)
{
MOZ_ASSERT(aOther.IsValid(),
"Merging data must store valid data");
MOZ_ASSERT(aOther.mStartOffset <= aOther.mRemovedEndOffset,
"end of removed text must be same or larger than start");
MOZ_ASSERT(aOther.mStartOffset <= aOther.mAddedEndOffset,
"end of added text must be same or larger than start");
if (!IsValid()) {
*this = aOther;
return;
}
// |mStartOffset| and |mRemovedEndOffset| represent all replaced or removed
// text ranges. I.e., mStartOffset should be the smallest offset of all
// modified text ranges in old text. |mRemovedEndOffset| should be the
// largest end offset in old text of all modified text ranges.
// |mAddedEndOffset| represents the end offset of all inserted text ranges.
// I.e., only this is an offset in new text.
// In other words, between mStartOffset and |mRemovedEndOffset| of the
// premodified text was already removed. And some text whose length is
// |mAddedEndOffset - mStartOffset| is inserted to |mStartOffset|. I.e.,
// this allows IME to mark dirty the modified text range with |mStartOffset|
// and |mRemovedEndOffset| if IME stores all text of the focused editor and
// to compute new text length with |mAddedEndOffset| and |mRemovedEndOffset|.
// Additionally, IME can retrieve only the text between |mStartOffset| and
// |mAddedEndOffset| for updating stored text.
// For comparing new and old |mStartOffset|/|mRemovedEndOffset| values, they
// should be adjusted to be in same text. The |newData.mStartOffset| and
// |newData.mRemovedEndOffset| should be computed as in old text because
// |mStartOffset| and |mRemovedEndOffset| represent the modified text range
// in the old text but even if some text before the values of the newData
// has already been modified, the values don't include the changes.
// For comparing new and old |mAddedEndOffset| values, they should be
// adjusted to be in same text. The |oldData.mAddedEndOffset| should be
// computed as in the new text because |mAddedEndOffset| indicates the end
// offset of inserted text in the new text but |oldData.mAddedEndOffset|
// doesn't include any changes of the text before |newData.mAddedEndOffset|.
const TextChangeDataBase& newData = aOther;
const TextChangeDataBase oldData = *this;
// mCausedOnlyByComposition should be true only when all changes are caused
// by composition.
mCausedOnlyByComposition =
newData.mCausedOnlyByComposition && oldData.mCausedOnlyByComposition;
// mIncludingChangesWithoutComposition should be true if at least one of
// merged changes occurred without composition.
mIncludingChangesWithoutComposition =
newData.mIncludingChangesWithoutComposition ||
oldData.mIncludingChangesWithoutComposition;
// mIncludingChangesDuringComposition should be true when at least one of
// the merged non-composition changes occurred during the latest composition.
if (!newData.mCausedOnlyByComposition &&
!newData.mIncludingChangesDuringComposition) {
MOZ_ASSERT(newData.mIncludingChangesWithoutComposition);
MOZ_ASSERT(mIncludingChangesWithoutComposition);
// If new change is neither caused by composition nor occurred during
// composition, set mIncludingChangesDuringComposition to false because
// IME doesn't want outdated text changes as text change during current
// composition.
mIncludingChangesDuringComposition = false;
} else {
// Otherwise, set mIncludingChangesDuringComposition to true if either
// oldData or newData includes changes during composition.
mIncludingChangesDuringComposition =
newData.mIncludingChangesDuringComposition ||
oldData.mIncludingChangesDuringComposition;
}
if (newData.mStartOffset >= oldData.mAddedEndOffset) {
// Case 1:
// If new start is after old end offset of added text, it means that text
// after the modified range is modified. Like:
// added range of old change: +----------+
// removed range of new change: +----------+
// So, the old start offset is always the smaller offset.
mStartOffset = oldData.mStartOffset;
// The new end offset of removed text is moved by the old change and we
// need to cancel the move of the old change for comparing the offsets in
// same text because it doesn't make sensce to compare offsets in different
// text.
uint32_t newRemovedEndOffsetInOldText =
newData.mRemovedEndOffset - oldData.Difference();
mRemovedEndOffset =
std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
// The new end offset of added text is always the larger offset.
mAddedEndOffset = newData.mAddedEndOffset;
return;
}
if (newData.mStartOffset >= oldData.mStartOffset) {
// If new start is in the modified range, it means that new data changes
// a part or all of the range.
mStartOffset = oldData.mStartOffset;
if (newData.mRemovedEndOffset >= oldData.mAddedEndOffset) {
// Case 2:
// If new end of removed text is greater than old end of added text, it
// means that all or a part of modified range modified again and text
// after the modified range is also modified. Like:
// added range of old change: +----------+
// removed range of new change: +----------+
// So, the new removed end offset is moved by the old change and we need
// to cancel the move of the old change for comparing the offsets in the
// same text because it doesn't make sense to compare the offsets in
// different text.
uint32_t newRemovedEndOffsetInOldText =
newData.mRemovedEndOffset - oldData.Difference();
mRemovedEndOffset =
std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
// The old end of added text is replaced by new change. So, it should be
// same as the new start. On the other hand, the new added end offset is
// always same or larger. Therefore, the merged end offset of added
// text should be the new end offset of added text.
mAddedEndOffset = newData.mAddedEndOffset;
return;
}
// Case 3:
// If new end of removed text is less than old end of added text, it means
// that only a part of the modified range is modified again. Like:
// added range of old change: +------------+
// removed range of new change: +-----+
// So, the new end offset of removed text should be same as the old end
// offset of removed text. Therefore, the merged end offset of removed
// text should be the old text change's |mRemovedEndOffset|.
mRemovedEndOffset = oldData.mRemovedEndOffset;
// The old end of added text is moved by new change. So, we need to cancel
// the move of the new change for comparing the offsets in same text.
uint32_t oldAddedEndOffsetInNewText =
oldData.mAddedEndOffset + newData.Difference();
mAddedEndOffset =
std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
return;
}
if (newData.mRemovedEndOffset >= oldData.mStartOffset) {
// If new end of removed text is greater than old start (and new start is
// less than old start), it means that a part of modified range is modified
// again and some new text before the modified range is also modified.
MOZ_ASSERT(newData.mStartOffset < oldData.mStartOffset,
"new start offset should be less than old one here");
mStartOffset = newData.mStartOffset;
if (newData.mRemovedEndOffset >= oldData.mAddedEndOffset) {
// Case 4:
// If new end of removed text is greater than old end of added text, it
// means that all modified text and text after the modified range is
// modified. Like:
// added range of old change: +----------+
// removed range of new change: +------------------+
// So, the new end of removed text is moved by the old change. Therefore,
// we need to cancel the move of the old change for comparing the offsets
// in same text because it doesn't make sense to compare the offsets in
// different text.
uint32_t newRemovedEndOffsetInOldText =
newData.mRemovedEndOffset - oldData.Difference();
mRemovedEndOffset =
std::max(newRemovedEndOffsetInOldText, oldData.mRemovedEndOffset);
// The old end of added text is replaced by new change. So, the old end
// offset of added text is same as new text change's start offset. Then,
// new change's end offset of added text is always same or larger than
// it. Therefore, merged end offset of added text is always the new end
// offset of added text.
mAddedEndOffset = newData.mAddedEndOffset;
return;
}
// Case 5:
// If new end of removed text is less than old end of added text, it
// means that only a part of the modified range is modified again. Like:
// added range of old change: +----------+
// removed range of new change: +----------+
// So, the new end of removed text should be same as old end of removed
// text for preventing end of removed text to be modified. Therefore,
// merged end offset of removed text is always the old end offset of removed
// text.
mRemovedEndOffset = oldData.mRemovedEndOffset;
// The old end of added text is moved by this change. So, we need to
// cancel the move of the new change for comparing the offsets in same text
// because it doesn't make sense to compare the offsets in different text.
uint32_t oldAddedEndOffsetInNewText =
oldData.mAddedEndOffset + newData.Difference();
mAddedEndOffset =
std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
return;
}
// Case 6:
// Otherwise, i.e., both new end of added text and new start are less than
// old start, text before the modified range is modified. Like:
// added range of old change: +----------+
// removed range of new change: +----------+
MOZ_ASSERT(newData.mStartOffset < oldData.mStartOffset,
"new start offset should be less than old one here");
mStartOffset = newData.mStartOffset;
MOZ_ASSERT(newData.mRemovedEndOffset < oldData.mRemovedEndOffset,
"new removed end offset should be less than old one here");
mRemovedEndOffset = oldData.mRemovedEndOffset;
// The end of added text should be adjusted with the new difference.
uint32_t oldAddedEndOffsetInNewText =
oldData.mAddedEndOffset + newData.Difference();
mAddedEndOffset =
std::max(newData.mAddedEndOffset, oldAddedEndOffsetInNewText);
}
#ifdef DEBUG
// Let's test the code of merging multiple text change data in debug build
// and crash if one of them fails because this feature is very complex but
// cannot be tested with mochitest.
void
IMENotification::TextChangeDataBase::Test()
{
static bool gTestTextChangeEvent = true;
if (!gTestTextChangeEvent) {
return;
}
gTestTextChangeEvent = false;
/****************************************************************************
* Case 1
****************************************************************************/
// Appending text
MergeWith(TextChangeData(10, 10, 20, false, false));
MergeWith(TextChangeData(20, 20, 35, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 1-1-1: mStartOffset should be the first offset");
MOZ_ASSERT(mRemovedEndOffset == 10, // 20 - (20 - 10)
"Test 1-1-2: mRemovedEndOffset should be the first end of removed text");
MOZ_ASSERT(mAddedEndOffset == 35,
"Test 1-1-3: mAddedEndOffset should be the last end of added text");
Clear();
// Removing text (longer line -> shorter line)
MergeWith(TextChangeData(10, 20, 10, false, false));
MergeWith(TextChangeData(10, 30, 10, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 1-2-1: mStartOffset should be the first offset");
MOZ_ASSERT(mRemovedEndOffset == 40, // 30 + (10 - 20)
"Test 1-2-2: mRemovedEndOffset should be the the last end of removed text "
"with already removed length");
MOZ_ASSERT(mAddedEndOffset == 10,
"Test 1-2-3: mAddedEndOffset should be the last end of added text");
Clear();
// Removing text (shorter line -> longer line)
MergeWith(TextChangeData(10, 20, 10, false, false));
MergeWith(TextChangeData(10, 15, 10, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 1-3-1: mStartOffset should be the first offset");
MOZ_ASSERT(mRemovedEndOffset == 25, // 15 + (10 - 20)
"Test 1-3-2: mRemovedEndOffset should be the the last end of removed text "
"with already removed length");
MOZ_ASSERT(mAddedEndOffset == 10,
"Test 1-3-3: mAddedEndOffset should be the last end of added text");
Clear();
// Appending text at different point (not sure if actually occurs)
MergeWith(TextChangeData(10, 10, 20, false, false));
MergeWith(TextChangeData(55, 55, 60, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 1-4-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 45, // 55 - (10 - 20)
"Test 1-4-2: mRemovedEndOffset should be the the largest end of removed "
"text without already added length");
MOZ_ASSERT(mAddedEndOffset == 60,
"Test 1-4-3: mAddedEndOffset should be the last end of added text");
Clear();
// Removing text at different point (not sure if actually occurs)
MergeWith(TextChangeData(10, 20, 10, false, false));
MergeWith(TextChangeData(55, 68, 55, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 1-5-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 78, // 68 - (10 - 20)
"Test 1-5-2: mRemovedEndOffset should be the the largest end of removed "
"text with already removed length");
MOZ_ASSERT(mAddedEndOffset == 55,
"Test 1-5-3: mAddedEndOffset should be the largest end of added text");
Clear();
// Replacing text and append text (becomes longer)
MergeWith(TextChangeData(30, 35, 32, false, false));
MergeWith(TextChangeData(32, 32, 40, false, false));
MOZ_ASSERT(mStartOffset == 30,
"Test 1-6-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 35, // 32 - (32 - 35)
"Test 1-6-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 40,
"Test 1-6-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text and append text (becomes shorter)
MergeWith(TextChangeData(30, 35, 32, false, false));
MergeWith(TextChangeData(32, 32, 33, false, false));
MOZ_ASSERT(mStartOffset == 30,
"Test 1-7-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 35, // 32 - (32 - 35)
"Test 1-7-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 33,
"Test 1-7-3: mAddedEndOffset should be the last end of added text");
Clear();
// Removing text and replacing text after first range (not sure if actually
// occurs)
MergeWith(TextChangeData(30, 35, 30, false, false));
MergeWith(TextChangeData(32, 34, 48, false, false));
MOZ_ASSERT(mStartOffset == 30,
"Test 1-8-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 39, // 34 - (30 - 35)
"Test 1-8-2: mRemovedEndOffset should be the the first end of removed text "
"without already removed text");
MOZ_ASSERT(mAddedEndOffset == 48,
"Test 1-8-3: mAddedEndOffset should be the last end of added text");
Clear();
// Removing text and replacing text after first range (not sure if actually
// occurs)
MergeWith(TextChangeData(30, 35, 30, false, false));
MergeWith(TextChangeData(32, 38, 36, false, false));
MOZ_ASSERT(mStartOffset == 30,
"Test 1-9-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 43, // 38 - (30 - 35)
"Test 1-9-2: mRemovedEndOffset should be the the first end of removed text "
"without already removed text");
MOZ_ASSERT(mAddedEndOffset == 36,
"Test 1-9-3: mAddedEndOffset should be the last end of added text");
Clear();
/****************************************************************************
* Case 2
****************************************************************************/
// Replacing text in around end of added text (becomes shorter) (not sure
// if actually occurs)
MergeWith(TextChangeData(50, 50, 55, false, false));
MergeWith(TextChangeData(53, 60, 54, false, false));
MOZ_ASSERT(mStartOffset == 50,
"Test 2-1-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 55, // 60 - (55 - 50)
"Test 2-1-2: mRemovedEndOffset should be the the last end of removed text "
"without already added text length");
MOZ_ASSERT(mAddedEndOffset == 54,
"Test 2-1-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text around end of added text (becomes longer) (not sure
// if actually occurs)
MergeWith(TextChangeData(50, 50, 55, false, false));
MergeWith(TextChangeData(54, 62, 68, false, false));
MOZ_ASSERT(mStartOffset == 50,
"Test 2-2-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 57, // 62 - (55 - 50)
"Test 2-2-2: mRemovedEndOffset should be the the last end of removed text "
"without already added text length");
MOZ_ASSERT(mAddedEndOffset == 68,
"Test 2-2-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text around end of replaced text (became shorter) (not sure if
// actually occurs)
MergeWith(TextChangeData(36, 48, 45, false, false));
MergeWith(TextChangeData(43, 50, 49, false, false));
MOZ_ASSERT(mStartOffset == 36,
"Test 2-3-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 53, // 50 - (45 - 48)
"Test 2-3-2: mRemovedEndOffset should be the the last end of removed text "
"without already removed text length");
MOZ_ASSERT(mAddedEndOffset == 49,
"Test 2-3-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text around end of replaced text (became longer) (not sure if
// actually occurs)
MergeWith(TextChangeData(36, 52, 53, false, false));
MergeWith(TextChangeData(43, 68, 61, false, false));
MOZ_ASSERT(mStartOffset == 36,
"Test 2-4-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 67, // 68 - (53 - 52)
"Test 2-4-2: mRemovedEndOffset should be the the last end of removed text "
"without already added text length");
MOZ_ASSERT(mAddedEndOffset == 61,
"Test 2-4-3: mAddedEndOffset should be the last end of added text");
Clear();
/****************************************************************************
* Case 3
****************************************************************************/
// Appending text in already added text (not sure if actually occurs)
MergeWith(TextChangeData(10, 10, 20, false, false));
MergeWith(TextChangeData(15, 15, 30, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 3-1-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 10,
"Test 3-1-2: mRemovedEndOffset should be the the first end of removed text");
MOZ_ASSERT(mAddedEndOffset == 35, // 20 + (30 - 15)
"Test 3-1-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Replacing text in added text (not sure if actually occurs)
MergeWith(TextChangeData(50, 50, 55, false, false));
MergeWith(TextChangeData(52, 53, 56, false, false));
MOZ_ASSERT(mStartOffset == 50,
"Test 3-2-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 50,
"Test 3-2-2: mRemovedEndOffset should be the the first end of removed text");
MOZ_ASSERT(mAddedEndOffset == 58, // 55 + (56 - 53)
"Test 3-2-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Replacing text in replaced text (became shorter) (not sure if actually
// occurs)
MergeWith(TextChangeData(36, 48, 45, false, false));
MergeWith(TextChangeData(37, 38, 50, false, false));
MOZ_ASSERT(mStartOffset == 36,
"Test 3-3-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 48,
"Test 3-3-2: mRemovedEndOffset should be the the first end of removed text");
MOZ_ASSERT(mAddedEndOffset == 57, // 45 + (50 - 38)
"Test 3-3-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Replacing text in replaced text (became longer) (not sure if actually
// occurs)
MergeWith(TextChangeData(32, 48, 53, false, false));
MergeWith(TextChangeData(43, 50, 52, false, false));
MOZ_ASSERT(mStartOffset == 32,
"Test 3-4-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 48,
"Test 3-4-2: mRemovedEndOffset should be the the last end of removed text "
"without already added text length");
MOZ_ASSERT(mAddedEndOffset == 55, // 53 + (52 - 50)
"Test 3-4-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Replacing text in replaced text (became shorter) (not sure if actually
// occurs)
MergeWith(TextChangeData(36, 48, 50, false, false));
MergeWith(TextChangeData(37, 49, 47, false, false));
MOZ_ASSERT(mStartOffset == 36,
"Test 3-5-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 48,
"Test 3-5-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 48, // 50 + (47 - 49)
"Test 3-5-3: mAddedEndOffset should be the first end of added text without "
"removed text length by the new change");
Clear();
// Replacing text in replaced text (became longer) (not sure if actually
// occurs)
MergeWith(TextChangeData(32, 48, 53, false, false));
MergeWith(TextChangeData(43, 50, 47, false, false));
MOZ_ASSERT(mStartOffset == 32,
"Test 3-6-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 48,
"Test 3-6-2: mRemovedEndOffset should be the the last end of removed text "
"without already added text length");
MOZ_ASSERT(mAddedEndOffset == 50, // 53 + (47 - 50)
"Test 3-6-3: mAddedEndOffset should be the first end of added text without "
"removed text length by the new change");
Clear();
/****************************************************************************
* Case 4
****************************************************************************/
// Replacing text all of already append text (not sure if actually occurs)
MergeWith(TextChangeData(50, 50, 55, false, false));
MergeWith(TextChangeData(44, 66, 68, false, false));
MOZ_ASSERT(mStartOffset == 44,
"Test 4-1-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 61, // 66 - (55 - 50)
"Test 4-1-2: mRemovedEndOffset should be the the last end of removed text "
"without already added text length");
MOZ_ASSERT(mAddedEndOffset == 68,
"Test 4-1-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text around a point in which text was removed (not sure if
// actually occurs)
MergeWith(TextChangeData(50, 62, 50, false, false));
MergeWith(TextChangeData(44, 66, 68, false, false));
MOZ_ASSERT(mStartOffset == 44,
"Test 4-2-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 78, // 66 - (50 - 62)
"Test 4-2-2: mRemovedEndOffset should be the the last end of removed text "
"without already removed text length");
MOZ_ASSERT(mAddedEndOffset == 68,
"Test 4-2-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text all replaced text (became shorter) (not sure if actually
// occurs)
MergeWith(TextChangeData(50, 62, 60, false, false));
MergeWith(TextChangeData(49, 128, 130, false, false));
MOZ_ASSERT(mStartOffset == 49,
"Test 4-3-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 130, // 128 - (60 - 62)
"Test 4-3-2: mRemovedEndOffset should be the the last end of removed text "
"without already removed text length");
MOZ_ASSERT(mAddedEndOffset == 130,
"Test 4-3-3: mAddedEndOffset should be the last end of added text");
Clear();
// Replacing text all replaced text (became longer) (not sure if actually
// occurs)
MergeWith(TextChangeData(50, 61, 73, false, false));
MergeWith(TextChangeData(44, 100, 50, false, false));
MOZ_ASSERT(mStartOffset == 44,
"Test 4-4-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 88, // 100 - (73 - 61)
"Test 4-4-2: mRemovedEndOffset should be the the last end of removed text "
"with already added text length");
MOZ_ASSERT(mAddedEndOffset == 50,
"Test 4-4-3: mAddedEndOffset should be the last end of added text");
Clear();
/****************************************************************************
* Case 5
****************************************************************************/
// Replacing text around start of added text (not sure if actually occurs)
MergeWith(TextChangeData(50, 50, 55, false, false));
MergeWith(TextChangeData(48, 52, 49, false, false));
MOZ_ASSERT(mStartOffset == 48,
"Test 5-1-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 50,
"Test 5-1-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 52, // 55 + (52 - 49)
"Test 5-1-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Replacing text around start of replaced text (became shorter) (not sure if
// actually occurs)
MergeWith(TextChangeData(50, 60, 58, false, false));
MergeWith(TextChangeData(43, 50, 48, false, false));
MOZ_ASSERT(mStartOffset == 43,
"Test 5-2-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 60,
"Test 5-2-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 56, // 58 + (48 - 50)
"Test 5-2-3: mAddedEndOffset should be the first end of added text without "
"removed text length by the new change");
Clear();
// Replacing text around start of replaced text (became longer) (not sure if
// actually occurs)
MergeWith(TextChangeData(50, 60, 68, false, false));
MergeWith(TextChangeData(43, 55, 53, false, false));
MOZ_ASSERT(mStartOffset == 43,
"Test 5-3-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 60,
"Test 5-3-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 66, // 68 + (53 - 55)
"Test 5-3-3: mAddedEndOffset should be the first end of added text without "
"removed text length by the new change");
Clear();
// Replacing text around start of replaced text (became shorter) (not sure if
// actually occurs)
MergeWith(TextChangeData(50, 60, 58, false, false));
MergeWith(TextChangeData(43, 50, 128, false, false));
MOZ_ASSERT(mStartOffset == 43,
"Test 5-4-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 60,
"Test 5-4-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 136, // 58 + (128 - 50)
"Test 5-4-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Replacing text around start of replaced text (became longer) (not sure if
// actually occurs)
MergeWith(TextChangeData(50, 60, 68, false, false));
MergeWith(TextChangeData(43, 55, 65, false, false));
MOZ_ASSERT(mStartOffset == 43,
"Test 5-5-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 60,
"Test 5-5-2: mRemovedEndOffset should be the the first end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 78, // 68 + (65 - 55)
"Test 5-5-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
/****************************************************************************
* Case 6
****************************************************************************/
// Appending text before already added text (not sure if actually occurs)
MergeWith(TextChangeData(30, 30, 45, false, false));
MergeWith(TextChangeData(10, 10, 20, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 6-1-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 30,
"Test 6-1-2: mRemovedEndOffset should be the the largest end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 55, // 45 + (20 - 10)
"Test 6-1-3: mAddedEndOffset should be the first end of added text with "
"added text length by the new change");
Clear();
// Removing text before already removed text (not sure if actually occurs)
MergeWith(TextChangeData(30, 35, 30, false, false));
MergeWith(TextChangeData(10, 25, 10, false, false));
MOZ_ASSERT(mStartOffset == 10,
"Test 6-2-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 35,
"Test 6-2-2: mRemovedEndOffset should be the the largest end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 15, // 30 - (25 - 10)
"Test 6-2-3: mAddedEndOffset should be the first end of added text with "
"removed text length by the new change");
Clear();
// Replacing text before already replaced text (not sure if actually occurs)
MergeWith(TextChangeData(50, 65, 70, false, false));
MergeWith(TextChangeData(13, 24, 15, false, false));
MOZ_ASSERT(mStartOffset == 13,
"Test 6-3-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 65,
"Test 6-3-2: mRemovedEndOffset should be the the largest end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 61, // 70 + (15 - 24)
"Test 6-3-3: mAddedEndOffset should be the first end of added text without "
"removed text length by the new change");
Clear();
// Replacing text before already replaced text (not sure if actually occurs)
MergeWith(TextChangeData(50, 65, 70, false, false));
MergeWith(TextChangeData(13, 24, 36, false, false));
MOZ_ASSERT(mStartOffset == 13,
"Test 6-4-1: mStartOffset should be the smallest offset");
MOZ_ASSERT(mRemovedEndOffset == 65,
"Test 6-4-2: mRemovedEndOffset should be the the largest end of removed "
"text");
MOZ_ASSERT(mAddedEndOffset == 82, // 70 + (36 - 24)
"Test 6-4-3: mAddedEndOffset should be the first end of added text without "
"removed text length by the new change");
Clear();
}
#endif // #ifdef DEBUG
} // namespace widget
} // namespace mozilla
#ifdef DEBUG
//////////////////////////////////////////////////////////////
//
// Convert a GUI event message code to a string.
// Makes it a lot easier to debug events.
//
// See gtk/nsWidget.cpp and windows/nsWindow.cpp
// for a DebugPrintEvent() function that uses
// this.
//
//////////////////////////////////////////////////////////////
/* static */ nsAutoString
nsBaseWidget::debug_GuiEventToString(WidgetGUIEvent* aGuiEvent)
{
NS_ASSERTION(nullptr != aGuiEvent,"cmon, null gui event.");
nsAutoString eventName(NS_LITERAL_STRING("UNKNOWN"));
#define _ASSIGN_eventName(_value,_name)\
case _value: eventName.AssignLiteral(_name) ; break
switch(aGuiEvent->mMessage)
{
_ASSIGN_eventName(eBlur,"eBlur");
_ASSIGN_eventName(eDrop,"eDrop");
_ASSIGN_eventName(eDragEnter,"eDragEnter");
_ASSIGN_eventName(eDragExit,"eDragExit");
_ASSIGN_eventName(eDragOver,"eDragOver");
_ASSIGN_eventName(eEditorInput,"eEditorInput");
_ASSIGN_eventName(eFocus,"eFocus");
_ASSIGN_eventName(eFocusIn,"eFocusIn");
_ASSIGN_eventName(eFocusOut,"eFocusOut");
_ASSIGN_eventName(eFormSelect,"eFormSelect");
_ASSIGN_eventName(eFormChange,"eFormChange");
_ASSIGN_eventName(eFormReset,"eFormReset");
_ASSIGN_eventName(eFormSubmit,"eFormSubmit");
_ASSIGN_eventName(eImageAbort,"eImageAbort");
_ASSIGN_eventName(eLoadError,"eLoadError");
_ASSIGN_eventName(eKeyDown,"eKeyDown");
_ASSIGN_eventName(eKeyPress,"eKeyPress");
_ASSIGN_eventName(eKeyUp,"eKeyUp");
_ASSIGN_eventName(eMouseEnterIntoWidget,"eMouseEnterIntoWidget");
_ASSIGN_eventName(eMouseExitFromWidget,"eMouseExitFromWidget");
_ASSIGN_eventName(eMouseDown,"eMouseDown");
_ASSIGN_eventName(eMouseUp,"eMouseUp");
_ASSIGN_eventName(eMouseClick,"eMouseClick");
_ASSIGN_eventName(eMouseAuxClick,"eMouseAuxClick");
_ASSIGN_eventName(eMouseDoubleClick,"eMouseDoubleClick");
_ASSIGN_eventName(eMouseMove,"eMouseMove");
_ASSIGN_eventName(eLoad,"eLoad");
_ASSIGN_eventName(ePopState,"ePopState");
_ASSIGN_eventName(eBeforeScriptExecute,"eBeforeScriptExecute");
_ASSIGN_eventName(eAfterScriptExecute,"eAfterScriptExecute");
_ASSIGN_eventName(eUnload,"eUnload");
_ASSIGN_eventName(eHashChange,"eHashChange");
_ASSIGN_eventName(eReadyStateChange,"eReadyStateChange");
_ASSIGN_eventName(eXULBroadcast, "eXULBroadcast");
_ASSIGN_eventName(eXULCommandUpdate, "eXULCommandUpdate");
#undef _ASSIGN_eventName
default:
{
eventName.AssignLiteral("UNKNOWN: ");
eventName.AppendInt(aGuiEvent->mMessage);
}
break;
}
return nsAutoString(eventName);
}
//////////////////////////////////////////////////////////////
//
// Code to deal with paint and event debug prefs.
//
//////////////////////////////////////////////////////////////
struct PrefPair
{
const char * name;
bool value;
};
static PrefPair debug_PrefValues[] =
{
{ "nglayout.debug.crossing_event_dumping", false },
{ "nglayout.debug.event_dumping", false },
{ "nglayout.debug.invalidate_dumping", false },
{ "nglayout.debug.motion_event_dumping", false },
{ "nglayout.debug.paint_dumping", false },
{ "nglayout.debug.paint_flashing", false }
};
//////////////////////////////////////////////////////////////
bool
nsBaseWidget::debug_GetCachedBoolPref(const char * aPrefName)
{
NS_ASSERTION(nullptr != aPrefName,"cmon, pref name is null.");
for (uint32_t i = 0; i < ArrayLength(debug_PrefValues); i++)
{
if (strcmp(debug_PrefValues[i].name, aPrefName) == 0)
{
return debug_PrefValues[i].value;
}
}
return false;
}
//////////////////////////////////////////////////////////////
static void debug_SetCachedBoolPref(const char * aPrefName,bool aValue)
{
NS_ASSERTION(nullptr != aPrefName,"cmon, pref name is null.");
for (uint32_t i = 0; i < ArrayLength(debug_PrefValues); i++)
{
if (strcmp(debug_PrefValues[i].name, aPrefName) == 0)
{
debug_PrefValues[i].value = aValue;
return;
}
}
NS_ASSERTION(false, "cmon, this code is not reached dude.");
}
//////////////////////////////////////////////////////////////
class Debug_PrefObserver final : public nsIObserver {
~Debug_PrefObserver() {}
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
};
NS_IMPL_ISUPPORTS(Debug_PrefObserver, nsIObserver)
NS_IMETHODIMP
Debug_PrefObserver::Observe(nsISupports* subject, const char* topic,
const char16_t* data)
{
NS_ConvertUTF16toUTF8 prefName(data);
bool value = Preferences::GetBool(prefName.get(), false);
debug_SetCachedBoolPref(prefName.get(), value);
return NS_OK;
}
//////////////////////////////////////////////////////////////
/* static */ void
debug_RegisterPrefCallbacks()
{
static bool once = true;
if (!once) {
return;
}
once = false;
nsCOMPtr<nsIObserver> obs(new Debug_PrefObserver());
for (uint32_t i = 0; i < ArrayLength(debug_PrefValues); i++) {
// Initialize the pref values
debug_PrefValues[i].value =
Preferences::GetBool(debug_PrefValues[i].name, false);
if (obs) {
// Register callbacks for when these change
nsCString name;
name.AssignLiteral(debug_PrefValues[i].name,
strlen(debug_PrefValues[i].name));
Preferences::AddStrongObserver(obs, name);
}
}
}
//////////////////////////////////////////////////////////////
static int32_t
_GetPrintCount()
{
static int32_t sCount = 0;
return ++sCount;
}
//////////////////////////////////////////////////////////////
/* static */ bool
nsBaseWidget::debug_WantPaintFlashing()
{
return debug_GetCachedBoolPref("nglayout.debug.paint_flashing");
}
//////////////////////////////////////////////////////////////
/* static */ void
nsBaseWidget::debug_DumpEvent(FILE * aFileOut,
nsIWidget * aWidget,
WidgetGUIEvent* aGuiEvent,
const char* aWidgetName,
int32_t aWindowID)
{
if (aGuiEvent->mMessage == eMouseMove) {
if (!debug_GetCachedBoolPref("nglayout.debug.motion_event_dumping"))
return;
}
if (aGuiEvent->mMessage == eMouseEnterIntoWidget ||
aGuiEvent->mMessage == eMouseExitFromWidget) {
if (!debug_GetCachedBoolPref("nglayout.debug.crossing_event_dumping"))
return;
}
if (!debug_GetCachedBoolPref("nglayout.debug.event_dumping"))
return;
NS_LossyConvertUTF16toASCII tempString(debug_GuiEventToString(aGuiEvent).get());
fprintf(aFileOut,
"%4d %-26s widget=%-8p name=%-12s id=0x%-6x refpt=%d,%d\n",
_GetPrintCount(),
tempString.get(),
(void *) aWidget,
aWidgetName,
aWindowID,
aGuiEvent->mRefPoint.x,
aGuiEvent->mRefPoint.y);
}
//////////////////////////////////////////////////////////////
/* static */ void
nsBaseWidget::debug_DumpPaintEvent(FILE * aFileOut,
nsIWidget * aWidget,
const nsIntRegion & aRegion,
const char * aWidgetName,
int32_t aWindowID)
{
NS_ASSERTION(nullptr != aFileOut,"cmon, null output FILE");
NS_ASSERTION(nullptr != aWidget,"cmon, the widget is null");
if (!debug_GetCachedBoolPref("nglayout.debug.paint_dumping"))
return;
nsIntRect rect = aRegion.GetBounds();
fprintf(aFileOut,
"%4d PAINT widget=%p name=%-12s id=0x%-6x bounds-rect=%3d,%-3d %3d,%-3d",
_GetPrintCount(),
(void *) aWidget,
aWidgetName,
aWindowID,
rect.X(), rect.Y(), rect.Width(), rect.Height()
);
fprintf(aFileOut,"\n");
}
//////////////////////////////////////////////////////////////
/* static */ void
nsBaseWidget::debug_DumpInvalidate(FILE* aFileOut,
nsIWidget* aWidget,
const LayoutDeviceIntRect* aRect,
const char* aWidgetName,
int32_t aWindowID)
{
if (!debug_GetCachedBoolPref("nglayout.debug.invalidate_dumping"))
return;
NS_ASSERTION(nullptr != aFileOut,"cmon, null output FILE");
NS_ASSERTION(nullptr != aWidget,"cmon, the widget is null");
fprintf(aFileOut,
"%4d Invalidate widget=%p name=%-12s id=0x%-6x",
_GetPrintCount(),
(void *) aWidget,
aWidgetName,
aWindowID);
if (aRect) {
fprintf(aFileOut,
" rect=%3d,%-3d %3d,%-3d",
aRect->X(), aRect->Y(), aRect->Width(), aRect->Height());
} else {
fprintf(aFileOut,
" rect=%-15s",
"none");
}
fprintf(aFileOut, "\n");
}
//////////////////////////////////////////////////////////////
#endif // DEBUG
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