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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /widget/cocoa/nsChildView.mm
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'widget/cocoa/nsChildView.mm')
-rw-r--r--widget/cocoa/nsChildView.mm5159
1 files changed, 5159 insertions, 0 deletions
diff --git a/widget/cocoa/nsChildView.mm b/widget/cocoa/nsChildView.mm
new file mode 100644
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+++ b/widget/cocoa/nsChildView.mm
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+/* -*- Mode: objc; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "mozilla/Logging.h"
+#include "mozilla/Unused.h"
+
+#include <unistd.h>
+#include <math.h>
+
+#include "nsChildView.h"
+#include "nsCocoaWindow.h"
+
+#include "mozilla/Maybe.h"
+#include "mozilla/MiscEvents.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/NativeKeyBindingsType.h"
+#include "mozilla/PresShell.h"
+#include "mozilla/SwipeTracker.h"
+#include "mozilla/TextEventDispatcher.h"
+#include "mozilla/TextEvents.h"
+#include "mozilla/TouchEvents.h"
+#include "mozilla/WheelHandlingHelper.h" // for WheelDeltaAdjustmentStrategy
+#include "mozilla/WritingModes.h"
+#include "mozilla/dom/DataTransfer.h"
+#include "mozilla/dom/MouseEventBinding.h"
+#include "mozilla/dom/SimpleGestureEventBinding.h"
+#include "mozilla/dom/WheelEventBinding.h"
+
+#include "nsArrayUtils.h"
+#include "nsExceptionHandler.h"
+#include "nsObjCExceptions.h"
+#include "nsCOMPtr.h"
+#include "nsThreadUtils.h"
+#include "nsToolkit.h"
+#include "nsCRT.h"
+
+#include "nsFontMetrics.h"
+#include "nsIRollupListener.h"
+#include "nsViewManager.h"
+#include "nsIFile.h"
+#include "nsILocalFileMac.h"
+#include "nsGfxCIID.h"
+#include "nsStyleConsts.h"
+#include "nsIWidgetListener.h"
+#include "nsIScreen.h"
+
+#include "nsDragService.h"
+#include "nsClipboard.h"
+#include "nsCursorManager.h"
+#include "nsWindowMap.h"
+#include "nsCocoaUtils.h"
+#include "nsMenuUtilsX.h"
+#include "nsMenuBarX.h"
+#include "NativeKeyBindings.h"
+#include "MacThemeGeometryType.h"
+
+#include "gfxContext.h"
+#include "gfxQuartzSurface.h"
+#include "gfxUtils.h"
+#include "nsRegion.h"
+#include "GfxTexturesReporter.h"
+#include "GLTextureImage.h"
+#include "GLContextProvider.h"
+#include "GLContextCGL.h"
+#include "OGLShaderProgram.h"
+#include "ScopedGLHelpers.h"
+#include "HeapCopyOfStackArray.h"
+#include "mozilla/layers/IAPZCTreeManager.h"
+#include "mozilla/layers/APZInputBridge.h"
+#include "mozilla/layers/APZThreadUtils.h"
+#include "mozilla/layers/CompositorOGL.h"
+#include "mozilla/layers/CompositorBridgeParent.h"
+#include "mozilla/layers/InputAPZContext.h"
+#include "mozilla/layers/IpcResourceUpdateQueue.h"
+#include "mozilla/layers/NativeLayerCA.h"
+#include "mozilla/layers/WebRenderBridgeChild.h"
+#include "mozilla/layers/WebRenderLayerManager.h"
+#include "mozilla/webrender/WebRenderAPI.h"
+#include "mozilla/widget/CompositorWidget.h"
+#include "mozilla/widget/Screen.h"
+#include "gfxUtils.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/BorrowedContext.h"
+#ifdef ACCESSIBILITY
+# include "nsAccessibilityService.h"
+# include "mozilla/a11y/Platform.h"
+#endif
+
+#include "mozilla/Preferences.h"
+#include "mozilla/StaticPrefs_apz.h"
+#include "mozilla/StaticPrefs_browser.h"
+#include "mozilla/StaticPrefs_general.h"
+#include "mozilla/StaticPrefs_gfx.h"
+#include "mozilla/StaticPrefs_ui.h"
+
+#include <dlfcn.h>
+
+#include <ApplicationServices/ApplicationServices.h>
+
+#include "GeckoProfiler.h"
+
+#include "mozilla/layers/ChromeProcessController.h"
+#include "nsLayoutUtils.h"
+#include "InputData.h"
+#include "VibrancyManager.h"
+#include "nsNativeThemeCocoa.h"
+#include "nsIDOMWindowUtils.h"
+#include "Units.h"
+#include "UnitTransforms.h"
+#include "mozilla/UniquePtrExtensions.h"
+#include "CustomCocoaEvents.h"
+#include "NativeMenuSupport.h"
+
+using namespace mozilla;
+using namespace mozilla::layers;
+using namespace mozilla::gl;
+using namespace mozilla::widget;
+
+using mozilla::gfx::Matrix4x4;
+
+#undef DEBUG_UPDATE
+#undef INVALIDATE_DEBUGGING // flash areas as they are invalidated
+
+// Don't put more than this many rects in the dirty region, just fluff
+// out to the bounding-box if there are more
+#define MAX_RECTS_IN_REGION 100
+
+LazyLogModule sCocoaLog("nsCocoaWidgets");
+
+extern "C" {
+CG_EXTERN void CGContextResetCTM(CGContextRef);
+CG_EXTERN void CGContextSetCTM(CGContextRef, CGAffineTransform);
+CG_EXTERN void CGContextResetClip(CGContextRef);
+
+typedef CFTypeRef CGSRegionObj;
+CGError CGSNewRegionWithRect(const CGRect* rect, CGSRegionObj* outRegion);
+CGError CGSNewRegionWithRectList(const CGRect* rects, int rectCount,
+ CGSRegionObj* outRegion);
+}
+
+// defined in nsMenuBarX.mm
+extern NSMenu* sApplicationMenu; // Application menu shared by all menubars
+
+extern nsIArray* gDraggedTransferables;
+
+ChildView* ChildViewMouseTracker::sLastMouseEventView = nil;
+NSEvent* ChildViewMouseTracker::sLastMouseMoveEvent = nil;
+NSWindow* ChildViewMouseTracker::sWindowUnderMouse = nil;
+NSPoint ChildViewMouseTracker::sLastScrollEventScreenLocation = NSZeroPoint;
+
+#ifdef INVALIDATE_DEBUGGING
+static void blinkRect(Rect* r);
+static void blinkRgn(RgnHandle rgn);
+#endif
+
+bool gUserCancelledDrag = false;
+
+uint32_t nsChildView::sLastInputEventCount = 0;
+
+static bool sIsTabletPointerActivated = false;
+
+static uint32_t sUniqueKeyEventId = 0;
+
+// The view that will do our drawing or host our NSOpenGLContext or Core
+// Animation layer.
+@interface PixelHostingView : NSView {
+}
+
+@end
+
+@interface ChildView (Private)
+
+// sets up our view, attaching it to its owning gecko view
+- (id)initWithFrame:(NSRect)inFrame geckoChild:(nsChildView*)inChild;
+
+// set up a gecko mouse event based on a cocoa mouse event
+- (void)convertCocoaMouseWheelEvent:(NSEvent*)aMouseEvent
+ toGeckoEvent:(WidgetWheelEvent*)outWheelEvent;
+- (void)convertCocoaMouseEvent:(NSEvent*)aMouseEvent
+ toGeckoEvent:(WidgetInputEvent*)outGeckoEvent;
+- (void)convertCocoaTabletPointerEvent:(NSEvent*)aMouseEvent
+ toGeckoEvent:(WidgetMouseEvent*)outGeckoEvent;
+- (NSMenu*)contextMenu;
+
+- (void)markLayerForDisplay;
+- (CALayer*)rootCALayer;
+- (void)updateRootCALayer;
+
+#ifdef ACCESSIBILITY
+- (id<mozAccessible>)accessible;
+#endif
+
+- (LayoutDeviceIntPoint)convertWindowCoordinates:(NSPoint)aPoint;
+- (LayoutDeviceIntPoint)convertWindowCoordinatesRoundDown:(NSPoint)aPoint;
+
+- (BOOL)inactiveWindowAcceptsMouseEvent:(NSEvent*)aEvent;
+- (void)updateWindowDraggableState;
+
+- (bool)beginOrEndGestureForEventPhase:(NSEvent*)aEvent;
+
+@end
+
+#pragma mark -
+
+// Flips a screen coordinate from a point in the cocoa coordinate system
+// (bottom-left rect) to a point that is a "flipped" cocoa coordinate system
+// (starts in the top-left).
+static inline void FlipCocoaScreenCoordinate(NSPoint& inPoint) {
+ inPoint.y = nsCocoaUtils::FlippedScreenY(inPoint.y);
+}
+
+#pragma mark -
+
+nsChildView::nsChildView()
+ : nsBaseWidget(),
+ mView(nullptr),
+ mParentView(nil),
+ mParentWidget(nullptr),
+ mCompositingLock("ChildViewCompositing"),
+ mBackingScaleFactor(0.0),
+ mVisible(false),
+ mSizeMode(nsSizeMode_Normal),
+ mDrawing(false),
+ mIsDispatchPaint(false) {}
+
+nsChildView::~nsChildView() {
+ // Notify the children that we're gone. childView->ResetParent() can change
+ // our list of children while it's being iterated, so the way we iterate the
+ // list must allow for this.
+ for (nsIWidget* kid = mLastChild; kid;) {
+ nsChildView* childView = static_cast<nsChildView*>(kid);
+ kid = kid->GetPrevSibling();
+ childView->ResetParent();
+ }
+
+ NS_WARNING_ASSERTION(
+ mOnDestroyCalled,
+ "nsChildView object destroyed without calling Destroy()");
+
+ if (mContentLayer) {
+ mNativeLayerRoot->RemoveLayer(mContentLayer); // safe if already removed
+ }
+
+ DestroyCompositor();
+
+ // An nsChildView object that was in use can be destroyed without Destroy()
+ // ever being called on it. So we also need to do a quick, safe cleanup
+ // here (it's too late to just call Destroy(), which can cause crashes).
+ // It's particularly important to make sure widgetDestroyed is called on our
+ // mView -- this method NULLs mView's mGeckoChild, and NULL checks on
+ // mGeckoChild are used throughout the ChildView class to tell if it's safe
+ // to use a ChildView object.
+ [mView widgetDestroyed]; // Safe if mView is nil.
+ mParentWidget = nil;
+ TearDownView(); // Safe if called twice.
+}
+
+nsresult nsChildView::Create(nsIWidget* aParent, nsNativeWidget aNativeParent,
+ const LayoutDeviceIntRect& aRect,
+ widget::InitData* aInitData) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ // Because the hidden window is created outside of an event loop,
+ // we need to provide an autorelease pool to avoid leaking cocoa objects
+ // (see bug 559075).
+ nsAutoreleasePool localPool;
+
+ mBounds = aRect;
+
+ // Ensure that the toolkit is created.
+ nsToolkit::GetToolkit();
+
+ BaseCreate(aParent, aInitData);
+
+ mParentView = nil;
+ if (aParent) {
+ // This is the popup window case. aParent is the nsCocoaWindow for the
+ // popup window, and mParentView will be its content view.
+ mParentView = (NSView*)aParent->GetNativeData(NS_NATIVE_WIDGET);
+ mParentWidget = aParent;
+ } else {
+ // This is the top-level window case.
+ // aNativeParent will be the contentView of our window, since that's what
+ // nsCocoaWindow returns when asked for an NS_NATIVE_VIEW.
+ // We do not have a direct "parent widget" association with the top level
+ // window's nsCocoaWindow object.
+ mParentView = reinterpret_cast<NSView*>(aNativeParent);
+ }
+
+ // create our parallel NSView and hook it up to our parent. Recall
+ // that NS_NATIVE_WIDGET is the NSView.
+ CGFloat scaleFactor = nsCocoaUtils::GetBackingScaleFactor(mParentView);
+ NSRect r = nsCocoaUtils::DevPixelsToCocoaPoints(mBounds, scaleFactor);
+ mView = [[ChildView alloc] initWithFrame:r geckoChild:this];
+
+ mNativeLayerRoot = NativeLayerRootCA::CreateForCALayer([mView rootCALayer]);
+ mNativeLayerRoot->SetBackingScale(scaleFactor);
+
+ // If this view was created in a Gecko view hierarchy, the initial state
+ // is hidden. If the view is attached only to a native NSView but has
+ // no Gecko parent (as in embedding), the initial state is visible.
+ if (mParentWidget)
+ [mView setHidden:YES];
+ else
+ mVisible = true;
+
+ // Hook it up in the NSView hierarchy.
+ if (mParentView) {
+ [mParentView addSubview:mView];
+ }
+
+ // if this is a ChildView, make sure that our per-window data
+ // is set up
+ if ([mView isKindOfClass:[ChildView class]])
+ [[WindowDataMap sharedWindowDataMap] ensureDataForWindow:[mView window]];
+
+ NS_ASSERTION(!mTextInputHandler, "mTextInputHandler has already existed");
+ mTextInputHandler = new TextInputHandler(this, mView);
+
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+void nsChildView::TearDownView() {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mView) return;
+
+ NSWindow* win = [mView window];
+ NSResponder* responder = [win firstResponder];
+
+ // We're being unhooked from the view hierarchy, don't leave our view
+ // or a child view as the window first responder.
+ if (responder && [responder isKindOfClass:[NSView class]] &&
+ [(NSView*)responder isDescendantOf:mView]) {
+ [win makeFirstResponder:[mView superview]];
+ }
+
+ // If mView is win's contentView, win (mView's NSWindow) "owns" mView --
+ // win has retained mView, and will detach it from the view hierarchy and
+ // release it when necessary (when win is itself destroyed (in a call to
+ // [win dealloc])). So all we need to do here is call [mView release] (to
+ // match the call to [mView retain] in nsChildView::StandardCreate()).
+ // Also calling [mView removeFromSuperviewWithoutNeedingDisplay] causes
+ // mView to be released again and dealloced, while remaining win's
+ // contentView. So if we do that here, win will (for a short while) have
+ // an invalid contentView (for the consequences see bmo bugs 381087 and
+ // 374260).
+ if ([mView isEqual:[win contentView]]) {
+ [mView release];
+ } else {
+ // Stop NSView hierarchy being changed during [ChildView drawRect:]
+ [mView performSelectorOnMainThread:@selector(delayedTearDown)
+ withObject:nil
+ waitUntilDone:false];
+ }
+ mView = nil;
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+nsCocoaWindow* nsChildView::GetAppWindowWidget() const {
+ id windowDelegate = [[mView window] delegate];
+ if (windowDelegate && [windowDelegate isKindOfClass:[WindowDelegate class]]) {
+ return [(WindowDelegate*)windowDelegate geckoWidget];
+ }
+ return nullptr;
+}
+
+void nsChildView::Destroy() {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (mOnDestroyCalled) return;
+ mOnDestroyCalled = true;
+
+ // Stuff below may delete the last ref to this
+ nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
+
+ {
+ // Make sure that no composition is in progress while disconnecting
+ // ourselves from the view.
+ MutexAutoLock lock(mCompositingLock);
+
+ [mView widgetDestroyed];
+ }
+
+ nsBaseWidget::Destroy();
+
+ NotifyWindowDestroyed();
+ mParentWidget = nil;
+
+ TearDownView();
+
+ nsBaseWidget::OnDestroy();
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+#pragma mark -
+
+#if 0
+static void PrintViewHierarchy(NSView *view)
+{
+ while (view) {
+ NSLog(@" view is %x, frame %@", view, NSStringFromRect([view frame]));
+ view = [view superview];
+ }
+}
+#endif
+
+// Return native data according to aDataType
+void* nsChildView::GetNativeData(uint32_t aDataType) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ void* retVal = nullptr;
+
+ switch (aDataType) {
+ case NS_NATIVE_WIDGET:
+ retVal = (void*)mView;
+ break;
+
+ case NS_NATIVE_WINDOW:
+ retVal = [mView window];
+ break;
+
+ case NS_NATIVE_GRAPHIC:
+ NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a Mac OS X child view!");
+ retVal = nullptr;
+ break;
+
+ case NS_NATIVE_OFFSETX:
+ retVal = 0;
+ break;
+
+ case NS_NATIVE_OFFSETY:
+ retVal = 0;
+ break;
+
+ case NS_RAW_NATIVE_IME_CONTEXT:
+ retVal = GetPseudoIMEContext();
+ if (retVal) {
+ break;
+ }
+ retVal = [mView inputContext];
+ // If input context isn't available on this widget, we should set |this|
+ // instead of nullptr since if this returns nullptr, IMEStateManager
+ // cannot manage composition with TextComposition instance. Although,
+ // this case shouldn't occur.
+ if (NS_WARN_IF(!retVal)) {
+ retVal = this;
+ }
+ break;
+
+ case NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID: {
+ NSWindow* win = [mView window];
+ if (win) {
+ retVal = (void*)[win windowNumber];
+ }
+ break;
+ }
+ }
+
+ return retVal;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nullptr);
+}
+
+#pragma mark -
+
+void nsChildView::SuppressAnimation(bool aSuppress) {
+ GetAppWindowWidget()->SuppressAnimation(aSuppress);
+}
+
+bool nsChildView::IsVisible() const {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if (!mVisible) {
+ return mVisible;
+ }
+
+ if (!GetAppWindowWidget()->IsVisible()) {
+ return false;
+ }
+
+ // mVisible does not accurately reflect the state of a hidden tabbed view
+ // so verify that the view has a window as well
+ // then check native widget hierarchy visibility
+ return ([mView window] != nil) && !NSIsEmptyRect([mView visibleRect]);
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(false);
+}
+
+// Some NSView methods (e.g. setFrame and setHidden) invalidate the view's
+// bounds in our window. However, we don't want these invalidations because
+// they are unnecessary and because they actually slow us down since we
+// block on the compositor inside drawRect.
+// When we actually need something invalidated, there will be an explicit call
+// to Invalidate from Gecko, so turning these automatic invalidations off
+// won't hurt us in the non-OMTC case.
+// The invalidations inside these NSView methods happen via a call to the
+// private method -[NSWindow _setNeedsDisplayInRect:]. Our BaseWindow
+// implementation of that method is augmented to let us ignore those calls
+// using -[BaseWindow disable/enableSetNeedsDisplay].
+static void ManipulateViewWithoutNeedingDisplay(NSView* aView,
+ void (^aCallback)()) {
+ BaseWindow* win = nil;
+ if ([[aView window] isKindOfClass:[BaseWindow class]]) {
+ win = (BaseWindow*)[aView window];
+ }
+ [win disableSetNeedsDisplay];
+ aCallback();
+ [win enableSetNeedsDisplay];
+}
+
+// Hide or show this component
+void nsChildView::Show(bool aState) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (aState != mVisible) {
+ // Provide an autorelease pool because this gets called during startup
+ // on the "hidden window", resulting in cocoa object leakage if there's
+ // no pool in place.
+ nsAutoreleasePool localPool;
+
+ ManipulateViewWithoutNeedingDisplay(mView, ^{
+ [mView setHidden:!aState];
+ });
+
+ mVisible = aState;
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Change the parent of this widget
+void nsChildView::SetParent(nsIWidget* aNewParent) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (mOnDestroyCalled) return;
+
+ nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
+
+ if (mParentWidget) {
+ mParentWidget->RemoveChild(this);
+ }
+
+ if (aNewParent) {
+ ReparentNativeWidget(aNewParent);
+ } else {
+ [mView removeFromSuperview];
+ mParentView = nil;
+ }
+
+ mParentWidget = aNewParent;
+
+ if (mParentWidget) {
+ mParentWidget->AddChild(this);
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+void nsChildView::ReparentNativeWidget(nsIWidget* aNewParent) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ MOZ_ASSERT(aNewParent, "null widget");
+
+ if (mOnDestroyCalled) return;
+
+ NSView<mozView>* newParentView =
+ (NSView<mozView>*)aNewParent->GetNativeData(NS_NATIVE_WIDGET);
+ NS_ENSURE_TRUE_VOID(newParentView);
+
+ // we hold a ref to mView, so this is safe
+ [mView removeFromSuperview];
+ mParentView = newParentView;
+ [mParentView addSubview:mView];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+void nsChildView::ResetParent() {
+ if (!mOnDestroyCalled) {
+ if (mParentWidget) mParentWidget->RemoveChild(this);
+ if (mView) [mView removeFromSuperview];
+ }
+ mParentWidget = nullptr;
+}
+
+nsIWidget* nsChildView::GetParent() { return mParentWidget; }
+
+float nsChildView::GetDPI() {
+ float dpi = 96.0;
+ nsCOMPtr<nsIScreen> screen = GetWidgetScreen();
+ if (screen) {
+ screen->GetDpi(&dpi);
+ }
+ return dpi;
+}
+
+void nsChildView::Enable(bool aState) {}
+
+bool nsChildView::IsEnabled() const { return true; }
+
+void nsChildView::SetFocus(Raise, mozilla::dom::CallerType aCallerType) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NSWindow* window = [mView window];
+ if (window) [window makeFirstResponder:mView];
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Override to set the cursor on the mac
+void nsChildView::SetCursor(const Cursor& aCursor) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if ([mView isDragInProgress]) {
+ return; // Don't change the cursor during dragging.
+ }
+
+ nsBaseWidget::SetCursor(aCursor);
+
+ bool forceUpdate = mUpdateCursor;
+ mUpdateCursor = false;
+ if (mCustomCursorAllowed && NS_SUCCEEDED([[nsCursorManager sharedInstance]
+ setCustomCursor:aCursor
+ widgetScaleFactor:BackingScaleFactor()
+ forceUpdate:forceUpdate])) {
+ return;
+ }
+
+ [[nsCursorManager sharedInstance] setNonCustomCursor:aCursor];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+#pragma mark -
+
+// Get this component dimension
+LayoutDeviceIntRect nsChildView::GetBounds() {
+ return !mView ? mBounds : CocoaPointsToDevPixels([mView frame]);
+}
+
+LayoutDeviceIntRect nsChildView::GetClientBounds() {
+ LayoutDeviceIntRect rect = GetBounds();
+ if (!mParentWidget) {
+ // For top level widgets we want the position on screen, not the position
+ // of this view inside the window.
+ rect.MoveTo(WidgetToScreenOffset());
+ }
+ return rect;
+}
+
+LayoutDeviceIntRect nsChildView::GetScreenBounds() {
+ LayoutDeviceIntRect rect = GetBounds();
+ rect.MoveTo(WidgetToScreenOffset());
+ return rect;
+}
+
+double nsChildView::GetDefaultScaleInternal() { return BackingScaleFactor(); }
+
+CGFloat nsChildView::BackingScaleFactor() const {
+ if (mBackingScaleFactor > 0.0) {
+ return mBackingScaleFactor;
+ }
+ if (!mView) {
+ return 1.0;
+ }
+ mBackingScaleFactor = nsCocoaUtils::GetBackingScaleFactor(mView);
+ return mBackingScaleFactor;
+}
+
+void nsChildView::BackingScaleFactorChanged() {
+ CGFloat newScale = nsCocoaUtils::GetBackingScaleFactor(mView);
+
+ // ignore notification if it hasn't really changed (or maybe we have
+ // disabled HiDPI mode via prefs)
+ if (mBackingScaleFactor == newScale) {
+ return;
+ }
+
+ SuspendAsyncCATransactions();
+ mBackingScaleFactor = newScale;
+ NSRect frame = [mView frame];
+ mBounds = nsCocoaUtils::CocoaRectToGeckoRectDevPix(frame, newScale);
+
+ mNativeLayerRoot->SetBackingScale(mBackingScaleFactor);
+
+ if (mWidgetListener && !mWidgetListener->GetAppWindow()) {
+ if (PresShell* presShell = mWidgetListener->GetPresShell()) {
+ presShell->BackingScaleFactorChanged();
+ }
+ }
+}
+
+int32_t nsChildView::RoundsWidgetCoordinatesTo() {
+ if (BackingScaleFactor() == 2.0) {
+ return 2;
+ }
+ return 1;
+}
+
+// Move this component, aX and aY are in the parent widget coordinate system
+void nsChildView::Move(double aX, double aY) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ int32_t x = NSToIntRound(aX);
+ int32_t y = NSToIntRound(aY);
+
+ if (!mView || (mBounds.x == x && mBounds.y == y)) return;
+
+ mBounds.x = x;
+ mBounds.y = y;
+
+ ManipulateViewWithoutNeedingDisplay(mView, ^{
+ [mView setFrame:DevPixelsToCocoaPoints(mBounds)];
+ });
+
+ ReportMoveEvent();
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+void nsChildView::Resize(double aWidth, double aHeight, bool aRepaint) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ int32_t width = NSToIntRound(aWidth);
+ int32_t height = NSToIntRound(aHeight);
+
+ if (!mView || (mBounds.width == width && mBounds.height == height)) return;
+
+ SuspendAsyncCATransactions();
+ mBounds.width = width;
+ mBounds.height = height;
+
+ ManipulateViewWithoutNeedingDisplay(mView, ^{
+ [mView setFrame:DevPixelsToCocoaPoints(mBounds)];
+ });
+
+ if (mVisible && aRepaint) {
+ [[mView pixelHostingView] setNeedsDisplay:YES];
+ }
+
+ ReportSizeEvent();
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+void nsChildView::Resize(double aX, double aY, double aWidth, double aHeight,
+ bool aRepaint) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ int32_t x = NSToIntRound(aX);
+ int32_t y = NSToIntRound(aY);
+ int32_t width = NSToIntRound(aWidth);
+ int32_t height = NSToIntRound(aHeight);
+
+ BOOL isMoving = (mBounds.x != x || mBounds.y != y);
+ BOOL isResizing = (mBounds.width != width || mBounds.height != height);
+ if (!mView || (!isMoving && !isResizing)) return;
+
+ if (isMoving) {
+ mBounds.x = x;
+ mBounds.y = y;
+ }
+ if (isResizing) {
+ SuspendAsyncCATransactions();
+ mBounds.width = width;
+ mBounds.height = height;
+
+ CALayer* layer = [mView rootCALayer];
+ double scale = BackingScaleFactor();
+ layer.bounds = CGRectMake(0, 0, width / scale, height / scale);
+ }
+
+ ManipulateViewWithoutNeedingDisplay(mView, ^{
+ [mView setFrame:DevPixelsToCocoaPoints(mBounds)];
+ });
+
+ if (mVisible && aRepaint) {
+ [[mView pixelHostingView] setNeedsDisplay:YES];
+ }
+
+ if (isMoving) {
+ ReportMoveEvent();
+ if (mOnDestroyCalled) return;
+ }
+ if (isResizing) ReportSizeEvent();
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// The following three methods are primarily an attempt to avoid glitches during
+// window resizing.
+// Here's some background on how these glitches come to be:
+// CoreAnimation transactions are per-thread. They don't nest across threads.
+// If you submit a transaction on the main thread and a transaction on a
+// different thread, the two will race to the window server and show up on the
+// screen in the order that they happen to arrive in at the window server.
+// When the window size changes, there's another event that needs to be
+// synchronized with: the window "shape" change. Cocoa has built-in
+// synchronization mechanics that make sure that *main thread* window paints
+// during window resizes are synchronized properly with the window shape change.
+// But no such built-in synchronization exists for CATransactions that are
+// triggered on a non-main thread. To cope with this, we define a "danger zone"
+// during which we simply avoid triggering any CATransactions on a non-main
+// thread (called "async" CATransactions here). This danger zone starts at the
+// earliest opportunity at which we know about the size change, which is
+// nsChildView::Resize, and ends at a point at which we know for sure that the
+// paint has been handled completely, which is when we return to the event loop
+// after layer display.
+void nsChildView::SuspendAsyncCATransactions() {
+ if (mUnsuspendAsyncCATransactionsRunnable) {
+ mUnsuspendAsyncCATransactionsRunnable->Cancel();
+ mUnsuspendAsyncCATransactionsRunnable = nullptr;
+ }
+
+ // Make sure that there actually will be a CATransaction on the main thread
+ // during which we get a chance to schedule unsuspension. Otherwise we might
+ // accidentally stay suspended indefinitely.
+ [mView markLayerForDisplay];
+
+ mNativeLayerRoot->SuspendOffMainThreadCommits();
+}
+
+void nsChildView::MaybeScheduleUnsuspendAsyncCATransactions() {
+ if (mNativeLayerRoot->AreOffMainThreadCommitsSuspended() &&
+ !mUnsuspendAsyncCATransactionsRunnable) {
+ mUnsuspendAsyncCATransactionsRunnable = NewCancelableRunnableMethod(
+ "nsChildView::MaybeScheduleUnsuspendAsyncCATransactions", this,
+ &nsChildView::UnsuspendAsyncCATransactions);
+ NS_DispatchToMainThread(mUnsuspendAsyncCATransactionsRunnable);
+ }
+}
+
+void nsChildView::UnsuspendAsyncCATransactions() {
+ mUnsuspendAsyncCATransactionsRunnable = nullptr;
+
+ if (mNativeLayerRoot->UnsuspendOffMainThreadCommits()) {
+ // We need to call mNativeLayerRoot->CommitToScreen() at the next available
+ // opportunity.
+ // The easiest way to handle this request is to mark the layer as needing
+ // display, because this will schedule a main thread CATransaction, during
+ // which HandleMainThreadCATransaction will call CommitToScreen().
+ [mView markLayerForDisplay];
+ }
+}
+
+void nsChildView::UpdateFullscreen(bool aFullscreen) {
+ if (mNativeLayerRoot) {
+ mNativeLayerRoot->SetWindowIsFullscreen(aFullscreen);
+ }
+}
+
+nsresult nsChildView::SynthesizeNativeKeyEvent(
+ int32_t aNativeKeyboardLayout, int32_t aNativeKeyCode,
+ uint32_t aModifierFlags, const nsAString& aCharacters,
+ const nsAString& aUnmodifiedCharacters, nsIObserver* aObserver) {
+ AutoObserverNotifier notifier(aObserver, "keyevent");
+ return mTextInputHandler->SynthesizeNativeKeyEvent(
+ aNativeKeyboardLayout, aNativeKeyCode, aModifierFlags, aCharacters,
+ aUnmodifiedCharacters);
+}
+
+nsresult nsChildView::SynthesizeNativeMouseEvent(
+ LayoutDeviceIntPoint aPoint, NativeMouseMessage aNativeMessage,
+ MouseButton aButton, nsIWidget::Modifiers aModifierFlags,
+ nsIObserver* aObserver) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ AutoObserverNotifier notifier(aObserver, "mouseevent");
+
+ NSPoint pt =
+ nsCocoaUtils::DevPixelsToCocoaPoints(aPoint, BackingScaleFactor());
+
+ // Move the mouse cursor to the requested position and reconnect it to the
+ // mouse.
+ CGWarpMouseCursorPosition(NSPointToCGPoint(pt));
+ CGAssociateMouseAndMouseCursorPosition(true);
+
+ // aPoint is given with the origin on the top left, but convertScreenToBase
+ // expects a point in a coordinate system that has its origin on the bottom
+ // left.
+ NSPoint screenPoint = NSMakePoint(pt.x, nsCocoaUtils::FlippedScreenY(pt.y));
+ NSPoint windowPoint =
+ nsCocoaUtils::ConvertPointFromScreen([mView window], screenPoint);
+ NSEventModifierFlags modifierFlags =
+ nsCocoaUtils::ConvertWidgetModifiersToMacModifierFlags(aModifierFlags);
+
+ if (aButton == MouseButton::eX1 || aButton == MouseButton::eX2) {
+ // NSEvent has `buttonNumber` for `NSEventTypeOther*`. However, it seems
+ // that there is no way to specify it. Therefore, we should return error
+ // for now.
+ return NS_ERROR_INVALID_ARG;
+ }
+
+ NSEventType nativeEventType;
+ switch (aNativeMessage) {
+ case NativeMouseMessage::ButtonDown:
+ case NativeMouseMessage::ButtonUp: {
+ switch (aButton) {
+ case MouseButton::ePrimary:
+ nativeEventType = aNativeMessage == NativeMouseMessage::ButtonDown
+ ? NSEventTypeLeftMouseDown
+ : NSEventTypeLeftMouseUp;
+ break;
+ case MouseButton::eMiddle:
+ nativeEventType = aNativeMessage == NativeMouseMessage::ButtonDown
+ ? NSEventTypeOtherMouseDown
+ : NSEventTypeOtherMouseUp;
+ break;
+ case MouseButton::eSecondary:
+ nativeEventType = aNativeMessage == NativeMouseMessage::ButtonDown
+ ? NSEventTypeRightMouseDown
+ : NSEventTypeRightMouseUp;
+ break;
+ default:
+ return NS_ERROR_INVALID_ARG;
+ }
+ break;
+ }
+ case NativeMouseMessage::Move:
+ nativeEventType = NSEventTypeMouseMoved;
+ break;
+ case NativeMouseMessage::EnterWindow:
+ nativeEventType = NSEventTypeMouseEntered;
+ break;
+ case NativeMouseMessage::LeaveWindow:
+ nativeEventType = NSEventTypeMouseExited;
+ break;
+ }
+
+ NSEvent* event =
+ [NSEvent mouseEventWithType:nativeEventType
+ location:windowPoint
+ modifierFlags:modifierFlags
+ timestamp:[[NSProcessInfo processInfo] systemUptime]
+ windowNumber:[[mView window] windowNumber]
+ context:nil
+ eventNumber:0
+ clickCount:1
+ pressure:0.0];
+
+ if (!event) return NS_ERROR_FAILURE;
+
+ if ([[mView window] isKindOfClass:[BaseWindow class]]) {
+ // Tracking area events don't end up in their tracking areas when sent
+ // through [NSApp sendEvent:], so pass them directly to the right methods.
+ BaseWindow* window = (BaseWindow*)[mView window];
+ if (nativeEventType == NSEventTypeMouseEntered) {
+ [window mouseEntered:event];
+ return NS_OK;
+ }
+ if (nativeEventType == NSEventTypeMouseExited) {
+ [window mouseExited:event];
+ return NS_OK;
+ }
+ if (nativeEventType == NSEventTypeMouseMoved) {
+ [window mouseMoved:event];
+ return NS_OK;
+ }
+ }
+
+ [NSApp sendEvent:event];
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+nsresult nsChildView::SynthesizeNativeMouseScrollEvent(
+ mozilla::LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage,
+ double aDeltaX, double aDeltaY, double aDeltaZ, uint32_t aModifierFlags,
+ uint32_t aAdditionalFlags, nsIObserver* aObserver) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ AutoObserverNotifier notifier(aObserver, "mousescrollevent");
+
+ NSPoint pt =
+ nsCocoaUtils::DevPixelsToCocoaPoints(aPoint, BackingScaleFactor());
+
+ // Move the mouse cursor to the requested position and reconnect it to the
+ // mouse.
+ CGWarpMouseCursorPosition(NSPointToCGPoint(pt));
+ CGAssociateMouseAndMouseCursorPosition(true);
+
+ // Mostly copied from http://stackoverflow.com/a/6130349
+ CGScrollEventUnit units =
+ (aAdditionalFlags & nsIDOMWindowUtils::MOUSESCROLL_SCROLL_LINES)
+ ? kCGScrollEventUnitLine
+ : kCGScrollEventUnitPixel;
+ CGEventRef cgEvent = CGEventCreateScrollWheelEvent(
+ NULL, units, 3, (int32_t)aDeltaY, (int32_t)aDeltaX, (int32_t)aDeltaZ);
+ if (!cgEvent) {
+ return NS_ERROR_FAILURE;
+ }
+
+ if (aNativeMessage) {
+ CGEventSetIntegerValueField(cgEvent, kCGScrollWheelEventScrollPhase,
+ aNativeMessage);
+ }
+
+ // On macOS 10.14 and up CGEventPost won't work because of changes in macOS
+ // to improve security. This code makes an NSEvent corresponding to the
+ // wheel event and dispatches it directly to the scrollWheel handler. Some
+ // fiddling is needed with the coordinates in order to simulate what macOS
+ // would do; this code adapted from the Chromium equivalent function at
+ // https://chromium.googlesource.com/chromium/src.git/+/62.0.3178.1/ui/events/test/cocoa_test_event_utils.mm#38
+ CGPoint location = CGEventGetLocation(cgEvent);
+ location.y += NSMinY([[mView window] frame]);
+ location.x -= NSMinX([[mView window] frame]);
+ CGEventSetLocation(cgEvent, location);
+
+ uint64_t kNanosPerSec = 1000000000L;
+ CGEventSetTimestamp(
+ cgEvent, [[NSProcessInfo processInfo] systemUptime] * kNanosPerSec);
+
+ NSEvent* event = [NSEvent eventWithCGEvent:cgEvent];
+ [event setValue:[mView window] forKey:@"_window"];
+ [mView scrollWheel:event];
+
+ CFRelease(cgEvent);
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+nsresult nsChildView::SynthesizeNativeTouchPoint(
+ uint32_t aPointerId, TouchPointerState aPointerState,
+ mozilla::LayoutDeviceIntPoint aPoint, double aPointerPressure,
+ uint32_t aPointerOrientation, nsIObserver* aObserver) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ AutoObserverNotifier notifier(aObserver, "touchpoint");
+
+ MOZ_ASSERT(NS_IsMainThread());
+ if (aPointerState == TOUCH_HOVER) {
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ if (!mSynthesizedTouchInput) {
+ mSynthesizedTouchInput = MakeUnique<MultiTouchInput>();
+ }
+
+ LayoutDeviceIntPoint pointInWindow = aPoint - WidgetToScreenOffset();
+ MultiTouchInput inputToDispatch = UpdateSynthesizedTouchState(
+ mSynthesizedTouchInput.get(), TimeStamp::Now(), aPointerId, aPointerState,
+ pointInWindow, aPointerPressure, aPointerOrientation);
+ DispatchTouchInput(inputToDispatch);
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+nsresult nsChildView::SynthesizeNativeTouchpadDoubleTap(
+ mozilla::LayoutDeviceIntPoint aPoint, uint32_t aModifierFlags) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ DispatchDoubleTapGesture(TimeStamp::Now(), aPoint - WidgetToScreenOffset(),
+ static_cast<Modifiers>(aModifierFlags));
+
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+bool nsChildView::SendEventToNativeMenuSystem(NSEvent* aEvent) {
+ bool handled = false;
+ nsCocoaWindow* widget = GetAppWindowWidget();
+ if (widget) {
+ nsMenuBarX* mb = widget->GetMenuBar();
+ if (mb) {
+ // Check if main menu wants to handle the event.
+ handled = mb->PerformKeyEquivalent(aEvent);
+ }
+ }
+
+ if (!handled && sApplicationMenu) {
+ // Check if application menu wants to handle the event.
+ handled = [sApplicationMenu performKeyEquivalent:aEvent];
+ }
+
+ return handled;
+}
+
+void nsChildView::PostHandleKeyEvent(mozilla::WidgetKeyboardEvent* aEvent) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ // We always allow keyboard events to propagate to keyDown: but if they are
+ // not handled we give menu items a chance to act. This allows for handling of
+ // custom shortcuts. Note that existing shortcuts cannot be reassigned yet and
+ // will have been handled by keyDown: before we get here.
+ NSMutableDictionary* nativeKeyEventsMap = [ChildView sNativeKeyEventsMap];
+ NSEvent* cocoaEvent = [nativeKeyEventsMap objectForKey:@(aEvent->mUniqueId)];
+ if (!cocoaEvent) {
+ return;
+ }
+
+ // If the escape key is pressed, the expectations are as follows:
+ // 1. If the page is loading, interrupt loading.
+ // 2. Give a website an opportunity to handle the event and call
+ // preventDefault() on it.
+ // 3. If the browser is fullscreen and the page isn't loading, exit
+ // fullscreen.
+ // 4. Ignore.
+ // Case 1 and 2 are handled before we get here. Below, we handle case 3.
+ if (StaticPrefs::browser_fullscreen_exit_on_escape() &&
+ [cocoaEvent keyCode] == kVK_Escape &&
+ [[mView window] styleMask] & NSWindowStyleMaskFullScreen) {
+ [[mView window] toggleFullScreen:nil];
+ }
+
+ if (SendEventToNativeMenuSystem(cocoaEvent)) {
+ aEvent->PreventDefault();
+ }
+ [nativeKeyEventsMap removeObjectForKey:@(aEvent->mUniqueId)];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Used for testing native menu system structure and event handling.
+nsresult nsChildView::ActivateNativeMenuItemAt(const nsAString& indexString) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsMenuUtilsX::CheckNativeMenuConsistency([NSApp mainMenu]);
+
+ NSString* locationString =
+ [NSString stringWithCharacters:reinterpret_cast<const unichar*>(
+ indexString.BeginReading())
+ length:indexString.Length()];
+ NSMenuItem* item = nsMenuUtilsX::NativeMenuItemWithLocation(
+ [NSApp mainMenu], locationString, true);
+ // We can't perform an action on an item with a submenu, that will raise
+ // an obj-c exception.
+ if (item && ![item hasSubmenu]) {
+ NSMenu* parent = [item menu];
+ if (parent) {
+ // NSLog(@"Performing action for native menu item titled: %@\n",
+ // [[currentSubmenu itemAtIndex:targetIndex] title]);
+ mozilla::AutoRestore<bool> autoRestore(
+ nsMenuUtilsX::gIsSynchronouslyActivatingNativeMenuItemDuringTest);
+ nsMenuUtilsX::gIsSynchronouslyActivatingNativeMenuItemDuringTest = true;
+ [parent performActionForItemAtIndex:[parent indexOfItem:item]];
+ return NS_OK;
+ }
+ }
+ return NS_ERROR_FAILURE;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+// Used for testing native menu system structure and event handling.
+nsresult nsChildView::ForceUpdateNativeMenuAt(const nsAString& indexString) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsCocoaWindow* widget = GetAppWindowWidget();
+ if (widget) {
+ nsMenuBarX* mb = widget->GetMenuBar();
+ if (mb) {
+ if (indexString.IsEmpty())
+ mb->ForceNativeMenuReload();
+ else
+ mb->ForceUpdateNativeMenuAt(indexString);
+ }
+ }
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+#pragma mark -
+
+#ifdef INVALIDATE_DEBUGGING
+
+static Boolean KeyDown(const UInt8 theKey) {
+ KeyMap map;
+ GetKeys(map);
+ return ((*((UInt8*)map + (theKey >> 3)) >> (theKey & 7)) & 1) != 0;
+}
+
+static Boolean caps_lock() { return KeyDown(0x39); }
+
+static void blinkRect(Rect* r) {
+ StRegionFromPool oldClip;
+ if (oldClip != NULL) ::GetClip(oldClip);
+
+ ::ClipRect(r);
+ ::InvertRect(r);
+ UInt32 end = ::TickCount() + 5;
+ while (::TickCount() < end)
+ ;
+ ::InvertRect(r);
+
+ if (oldClip != NULL) ::SetClip(oldClip);
+}
+
+static void blinkRgn(RgnHandle rgn) {
+ StRegionFromPool oldClip;
+ if (oldClip != NULL) ::GetClip(oldClip);
+
+ ::SetClip(rgn);
+ ::InvertRgn(rgn);
+ UInt32 end = ::TickCount() + 5;
+ while (::TickCount() < end)
+ ;
+ ::InvertRgn(rgn);
+
+ if (oldClip != NULL) ::SetClip(oldClip);
+}
+
+#endif
+
+// Invalidate this component's visible area
+void nsChildView::Invalidate(const LayoutDeviceIntRect& aRect) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mView || !mVisible) return;
+
+ NS_ASSERTION(
+ GetWindowRenderer()->GetBackendType() != LayersBackend::LAYERS_WR,
+ "Shouldn't need to invalidate with accelerated OMTC layers!");
+
+ EnsureContentLayerForMainThreadPainting();
+ mContentLayerInvalidRegion.OrWith(aRect.Intersect(GetBounds()));
+ [mView markLayerForDisplay];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+bool nsChildView::WidgetTypeSupportsAcceleration() {
+ // All widget types support acceleration.
+ return true;
+}
+
+bool nsChildView::ShouldUseOffMainThreadCompositing() {
+ // We need to enable OMTC in popups which contain remote layer
+ // trees, since the remote content won't be rendered at all otherwise.
+ if (HasRemoteContent()) {
+ return true;
+ }
+
+ // Don't use OMTC for popup windows, because we do not want context menus to
+ // pay the overhead of starting up a compositor. With the OpenGL compositor,
+ // new windows are expensive because of shader re-compilation, and with
+ // WebRender, new windows are expensive because they create their own threads
+ // and texture caches.
+ // Using OMTC with BasicCompositor for context menus would probably be fine
+ // but isn't a well-tested configuration.
+ if ([mView window] && [[mView window] isKindOfClass:[PopupWindow class]]) {
+ // Use main-thread BasicLayerManager for drawing menus.
+ return false;
+ }
+
+ return nsBaseWidget::ShouldUseOffMainThreadCompositing();
+}
+
+#pragma mark -
+
+// Invokes callback and ProcessEvent methods on Event Listener object
+nsresult nsChildView::DispatchEvent(WidgetGUIEvent* event,
+ nsEventStatus& aStatus) {
+ RefPtr<nsChildView> kungFuDeathGrip(this);
+
+#ifdef DEBUG
+ debug_DumpEvent(stdout, event->mWidget, event, "something", 0);
+#endif
+
+ if (event->mFlags.mIsSynthesizedForTests) {
+ WidgetKeyboardEvent* keyEvent = event->AsKeyboardEvent();
+ if (keyEvent) {
+ nsresult rv = mTextInputHandler->AttachNativeKeyEvent(*keyEvent);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+ }
+
+ aStatus = nsEventStatus_eIgnore;
+
+ nsIWidgetListener* listener = mWidgetListener;
+
+ // If the listener is NULL, check if the parent is a popup. If it is, then
+ // this child is the popup content view attached to a popup. Get the
+ // listener from the parent popup instead.
+ nsCOMPtr<nsIWidget> parentWidget = mParentWidget;
+ if (!listener && parentWidget) {
+ if (parentWidget->GetWindowType() == WindowType::Popup) {
+ // Check just in case event->mWidget isn't this widget
+ if (event->mWidget) {
+ listener = event->mWidget->GetWidgetListener();
+ }
+ if (!listener) {
+ event->mWidget = parentWidget;
+ listener = parentWidget->GetWidgetListener();
+ }
+ }
+ }
+
+ if (listener) aStatus = listener->HandleEvent(event, mUseAttachedEvents);
+
+ return NS_OK;
+}
+
+nsIWidget* nsChildView::GetWidgetForListenerEvents() {
+ // If there is no listener, use the parent popup's listener if that exists.
+ if (!mWidgetListener && mParentWidget &&
+ mParentWidget->GetWindowType() == WindowType::Popup) {
+ return mParentWidget;
+ }
+
+ return this;
+}
+
+void nsChildView::WillPaintWindow() {
+ nsCOMPtr<nsIWidget> widget = GetWidgetForListenerEvents();
+
+ nsIWidgetListener* listener = widget->GetWidgetListener();
+ if (listener) {
+ listener->WillPaintWindow(widget);
+ }
+}
+
+bool nsChildView::PaintWindow(LayoutDeviceIntRegion aRegion) {
+ nsCOMPtr<nsIWidget> widget = GetWidgetForListenerEvents();
+
+ nsIWidgetListener* listener = widget->GetWidgetListener();
+ if (!listener) return false;
+
+ bool returnValue = false;
+ bool oldDispatchPaint = mIsDispatchPaint;
+ mIsDispatchPaint = true;
+ returnValue = listener->PaintWindow(widget, aRegion);
+
+ listener = widget->GetWidgetListener();
+ if (listener) {
+ listener->DidPaintWindow();
+ }
+
+ mIsDispatchPaint = oldDispatchPaint;
+ return returnValue;
+}
+
+bool nsChildView::PaintWindowInDrawTarget(gfx::DrawTarget* aDT,
+ const LayoutDeviceIntRegion& aRegion,
+ const gfx::IntSize& aSurfaceSize) {
+ if (!aDT || !aDT->IsValid()) {
+ return false;
+ }
+ gfxContext targetContext(aDT);
+
+ // Set up the clip region and clear existing contents in the backing surface.
+ targetContext.NewPath();
+ for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
+ const LayoutDeviceIntRect& r = iter.Get();
+ targetContext.Rectangle(gfxRect(r.x, r.y, r.width, r.height));
+ aDT->ClearRect(gfx::Rect(r.ToUnknownRect()));
+ }
+ targetContext.Clip();
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(mView);
+ if (GetWindowRenderer()->GetBackendType() == LayersBackend::LAYERS_NONE) {
+ nsBaseWidget::AutoLayerManagerSetup setupLayerManager(
+ this, &targetContext, BufferMode::BUFFER_NONE);
+ return PaintWindow(aRegion);
+ }
+ return false;
+}
+
+void nsChildView::EnsureContentLayerForMainThreadPainting() {
+ // Ensure we have an mContentLayer of the correct size.
+ // The content layer gets created on demand for BasicLayers windows. We do
+ // not create it during widget creation because, for non-BasicLayers windows,
+ // the compositing layer manager will create any layers it needs.
+ gfx::IntSize size = GetBounds().Size().ToUnknownSize();
+ if (mContentLayer && mContentLayer->GetSize() != size) {
+ mNativeLayerRoot->RemoveLayer(mContentLayer);
+ mContentLayer = nullptr;
+ }
+ if (!mContentLayer) {
+ mPoolHandle = SurfacePool::Create(0)->GetHandleForGL(nullptr);
+ RefPtr<NativeLayer> contentLayer =
+ mNativeLayerRoot->CreateLayer(size, false, mPoolHandle);
+ mNativeLayerRoot->AppendLayer(contentLayer);
+ mContentLayer = contentLayer->AsNativeLayerCA();
+ mContentLayer->SetSurfaceIsFlipped(false);
+ mContentLayerInvalidRegion = GetBounds();
+ }
+}
+
+void nsChildView::PaintWindowInContentLayer() {
+ EnsureContentLayerForMainThreadPainting();
+ mPoolHandle->OnBeginFrame();
+ RefPtr<DrawTarget> dt = mContentLayer->NextSurfaceAsDrawTarget(
+ gfx::IntRect({}, mContentLayer->GetSize()),
+ mContentLayerInvalidRegion.ToUnknownRegion(), gfx::BackendType::SKIA);
+ if (!dt) {
+ return;
+ }
+
+ PaintWindowInDrawTarget(dt, mContentLayerInvalidRegion, dt->GetSize());
+ mContentLayer->NotifySurfaceReady();
+ mContentLayerInvalidRegion.SetEmpty();
+ mPoolHandle->OnEndFrame();
+}
+
+void nsChildView::HandleMainThreadCATransaction() {
+ WillPaintWindow();
+
+ if (GetWindowRenderer()->GetBackendType() == LayersBackend::LAYERS_NONE) {
+ // We're in BasicLayers mode, i.e. main thread software compositing.
+ // Composite the window into our layer's surface.
+ PaintWindowInContentLayer();
+ } else {
+ // Trigger a synchronous OMTC composite. This will call NextSurface and
+ // NotifySurfaceReady on the compositor thread to update mNativeLayerRoot's
+ // contents, and the main thread (this thread) will wait inside PaintWindow
+ // during that time.
+ PaintWindow(LayoutDeviceIntRegion(GetBounds()));
+ }
+
+ {
+ // Apply the changes inside mNativeLayerRoot to the underlying CALayers. Now
+ // is a good time to call this because we know we're currently inside a main
+ // thread CATransaction, and the lock makes sure that no composition is
+ // currently in progress, so we won't present half-composited state to the
+ // screen.
+ MutexAutoLock lock(mCompositingLock);
+ mNativeLayerRoot->CommitToScreen();
+ }
+
+ MaybeScheduleUnsuspendAsyncCATransactions();
+}
+
+#pragma mark -
+
+void nsChildView::ReportMoveEvent() { NotifyWindowMoved(mBounds.x, mBounds.y); }
+
+void nsChildView::ReportSizeEvent() {
+ if (mWidgetListener)
+ mWidgetListener->WindowResized(this, mBounds.width, mBounds.height);
+}
+
+#pragma mark -
+
+LayoutDeviceIntPoint nsChildView::GetClientOffset() {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NSPoint origin = [mView convertPoint:NSMakePoint(0, 0) toView:nil];
+ origin.y = [[mView window] frame].size.height - origin.y;
+ return CocoaPointsToDevPixels(origin);
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(LayoutDeviceIntPoint(0, 0));
+}
+
+// Return the offset between this child view and the screen.
+// @return -- widget origin in device-pixel coords
+LayoutDeviceIntPoint nsChildView::WidgetToScreenOffset() {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NSPoint origin = NSMakePoint(0, 0);
+
+ // 1. First translate view origin point into window coords.
+ // The returned point is in bottom-left coordinates.
+ origin = [mView convertPoint:origin toView:nil];
+
+ // 2. We turn the window-coord rect's origin into screen (still bottom-left)
+ // coords.
+ origin = nsCocoaUtils::ConvertPointToScreen([mView window], origin);
+
+ // 3. Since we're dealing in bottom-left coords, we need to make it top-left
+ // coords
+ // before we pass it back to Gecko.
+ FlipCocoaScreenCoordinate(origin);
+
+ // convert to device pixels
+ return CocoaPointsToDevPixels(origin);
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(LayoutDeviceIntPoint(0, 0));
+}
+
+nsresult nsChildView::SetTitle(const nsAString& title) {
+ // child views don't have titles
+ return NS_OK;
+}
+
+nsresult nsChildView::GetAttention(int32_t aCycleCount) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ [NSApp requestUserAttention:NSInformationalRequest];
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+/* static */
+bool nsChildView::DoHasPendingInputEvent() {
+ return sLastInputEventCount != GetCurrentInputEventCount();
+}
+
+/* static */
+uint32_t nsChildView::GetCurrentInputEventCount() {
+ // Can't use kCGAnyInputEventType because that updates too rarely for us (and
+ // always in increments of 30+!) and because apparently it's sort of broken
+ // on Tiger. So just go ahead and query the counters we care about.
+ static const CGEventType eventTypes[] = {kCGEventLeftMouseDown,
+ kCGEventLeftMouseUp,
+ kCGEventRightMouseDown,
+ kCGEventRightMouseUp,
+ kCGEventMouseMoved,
+ kCGEventLeftMouseDragged,
+ kCGEventRightMouseDragged,
+ kCGEventKeyDown,
+ kCGEventKeyUp,
+ kCGEventScrollWheel,
+ kCGEventTabletPointer,
+ kCGEventOtherMouseDown,
+ kCGEventOtherMouseUp,
+ kCGEventOtherMouseDragged};
+
+ uint32_t eventCount = 0;
+ for (uint32_t i = 0; i < ArrayLength(eventTypes); ++i) {
+ eventCount += CGEventSourceCounterForEventType(
+ kCGEventSourceStateCombinedSessionState, eventTypes[i]);
+ }
+ return eventCount;
+}
+
+/* static */
+void nsChildView::UpdateCurrentInputEventCount() {
+ sLastInputEventCount = GetCurrentInputEventCount();
+}
+
+bool nsChildView::HasPendingInputEvent() { return DoHasPendingInputEvent(); }
+
+#pragma mark -
+
+void nsChildView::SetInputContext(const InputContext& aContext,
+ const InputContextAction& aAction) {
+ NS_ENSURE_TRUE_VOID(mTextInputHandler);
+
+ if (mTextInputHandler->IsFocused()) {
+ if (aContext.IsPasswordEditor()) {
+ TextInputHandler::EnableSecureEventInput();
+ } else {
+ TextInputHandler::EnsureSecureEventInputDisabled();
+ }
+ }
+
+ // IMEInputHandler::IsEditableContent() returns false when both
+ // IsASCIICableOnly() and IsIMEEnabled() return false. So, be careful
+ // when you change the following code. You might need to change
+ // IMEInputHandler::IsEditableContent() too.
+ mInputContext = aContext;
+ switch (aContext.mIMEState.mEnabled) {
+ case IMEEnabled::Enabled:
+ mTextInputHandler->SetASCIICapableOnly(false);
+ mTextInputHandler->EnableIME(true);
+ if (mInputContext.mIMEState.mOpen != IMEState::DONT_CHANGE_OPEN_STATE) {
+ mTextInputHandler->SetIMEOpenState(mInputContext.mIMEState.mOpen ==
+ IMEState::OPEN);
+ }
+ break;
+ case IMEEnabled::Disabled:
+ mTextInputHandler->SetASCIICapableOnly(false);
+ mTextInputHandler->EnableIME(false);
+ break;
+ case IMEEnabled::Password:
+ mTextInputHandler->SetASCIICapableOnly(true);
+ mTextInputHandler->EnableIME(false);
+ break;
+ default:
+ NS_ERROR("not implemented!");
+ }
+}
+
+InputContext nsChildView::GetInputContext() {
+ switch (mInputContext.mIMEState.mEnabled) {
+ case IMEEnabled::Enabled:
+ if (mTextInputHandler) {
+ mInputContext.mIMEState.mOpen = mTextInputHandler->IsIMEOpened()
+ ? IMEState::OPEN
+ : IMEState::CLOSED;
+ break;
+ }
+ // If mTextInputHandler is null, set CLOSED instead...
+ [[fallthrough]];
+ default:
+ mInputContext.mIMEState.mOpen = IMEState::CLOSED;
+ break;
+ }
+ return mInputContext;
+}
+
+TextEventDispatcherListener*
+nsChildView::GetNativeTextEventDispatcherListener() {
+ if (NS_WARN_IF(!mTextInputHandler)) {
+ return nullptr;
+ }
+ return mTextInputHandler;
+}
+
+nsresult nsChildView::AttachNativeKeyEvent(
+ mozilla::WidgetKeyboardEvent& aEvent) {
+ NS_ENSURE_TRUE(mTextInputHandler, NS_ERROR_NOT_AVAILABLE);
+ return mTextInputHandler->AttachNativeKeyEvent(aEvent);
+}
+
+bool nsChildView::GetEditCommands(NativeKeyBindingsType aType,
+ const WidgetKeyboardEvent& aEvent,
+ nsTArray<CommandInt>& aCommands) {
+ // Validate the arguments.
+ if (NS_WARN_IF(!nsIWidget::GetEditCommands(aType, aEvent, aCommands))) {
+ return false;
+ }
+
+ Maybe<WritingMode> writingMode;
+ if (aEvent.NeedsToRemapNavigationKey()) {
+ if (RefPtr<TextEventDispatcher> dispatcher = GetTextEventDispatcher()) {
+ writingMode = dispatcher->MaybeQueryWritingModeAtSelection();
+ }
+ }
+
+ NativeKeyBindings* keyBindings = NativeKeyBindings::GetInstance(aType);
+ keyBindings->GetEditCommands(aEvent, writingMode, aCommands);
+ return true;
+}
+
+NSView<mozView>* nsChildView::GetEditorView() {
+ NSView<mozView>* editorView = mView;
+ // We need to get editor's view. E.g., when the focus is in the bookmark
+ // dialog, the view is <panel> element of the dialog. At this time, the key
+ // events are processed the parent window's view that has native focus.
+ WidgetQueryContentEvent queryContentState(true, eQueryContentState, this);
+ // This may be called during creating a menu popup frame due to creating
+ // widget synchronously and that causes Cocoa asking current window level.
+ // In this case, it's not safe to flush layout on the document and we don't
+ // need any layout information right now.
+ queryContentState.mNeedsToFlushLayout = false;
+ DispatchWindowEvent(queryContentState);
+ if (queryContentState.Succeeded() &&
+ queryContentState.mReply->mFocusedWidget) {
+ NSView<mozView>* view = static_cast<NSView<mozView>*>(
+ queryContentState.mReply->mFocusedWidget->GetNativeData(
+ NS_NATIVE_WIDGET));
+ if (view) editorView = view;
+ }
+ return editorView;
+}
+
+#pragma mark -
+
+void nsChildView::CreateCompositor() {
+ nsBaseWidget::CreateCompositor();
+ if (mCompositorBridgeChild) {
+ [mView setUsingOMTCompositor:true];
+ }
+}
+
+void nsChildView::ConfigureAPZCTreeManager() {
+ nsBaseWidget::ConfigureAPZCTreeManager();
+}
+
+void nsChildView::ConfigureAPZControllerThread() {
+ nsBaseWidget::ConfigureAPZControllerThread();
+}
+
+bool nsChildView::PreRender(WidgetRenderingContext* aContext)
+ MOZ_NO_THREAD_SAFETY_ANALYSIS {
+ // The lock makes sure that we don't attempt to tear down the view while
+ // compositing. That would make us unable to call postRender on it when the
+ // composition is done, thus keeping the GL context locked forever.
+ mCompositingLock.Lock();
+
+ if (aContext->mGL && gfxPlatform::CanMigrateMacGPUs()) {
+ GLContextCGL::Cast(aContext->mGL)->MigrateToActiveGPU();
+ }
+
+ return true;
+}
+
+void nsChildView::PostRender(WidgetRenderingContext* aContext)
+ MOZ_NO_THREAD_SAFETY_ANALYSIS {
+ mCompositingLock.Unlock();
+}
+
+RefPtr<layers::NativeLayerRoot> nsChildView::GetNativeLayerRoot() {
+ return mNativeLayerRoot;
+}
+
+static int32_t FindTitlebarBottom(
+ const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
+ int32_t aWindowWidth) {
+ int32_t titlebarBottom = 0;
+ for (auto& g : aThemeGeometries) {
+ if (g.mType == eThemeGeometryTypeTitlebar && g.mRect.X() <= 0 &&
+ g.mRect.XMost() >= aWindowWidth && g.mRect.Y() <= 0) {
+ titlebarBottom = std::max(titlebarBottom, g.mRect.YMost());
+ }
+ }
+ return titlebarBottom;
+}
+
+static int32_t FindUnifiedToolbarBottom(
+ const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
+ int32_t aWindowWidth, int32_t aTitlebarBottom) {
+ int32_t unifiedToolbarBottom = aTitlebarBottom;
+ for (uint32_t i = 0; i < aThemeGeometries.Length(); ++i) {
+ const nsIWidget::ThemeGeometry& g = aThemeGeometries[i];
+ if ((g.mType == eThemeGeometryTypeToolbar) && g.mRect.X() <= 0 &&
+ g.mRect.XMost() >= aWindowWidth && g.mRect.Y() <= aTitlebarBottom) {
+ unifiedToolbarBottom = std::max(unifiedToolbarBottom, g.mRect.YMost());
+ }
+ }
+ return unifiedToolbarBottom;
+}
+
+static LayoutDeviceIntRect FindFirstRectOfType(
+ const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
+ nsITheme::ThemeGeometryType aThemeGeometryType) {
+ for (uint32_t i = 0; i < aThemeGeometries.Length(); ++i) {
+ const nsIWidget::ThemeGeometry& g = aThemeGeometries[i];
+ if (g.mType == aThemeGeometryType) {
+ return g.mRect;
+ }
+ }
+ return LayoutDeviceIntRect();
+}
+
+void nsChildView::UpdateThemeGeometries(
+ const nsTArray<ThemeGeometry>& aThemeGeometries) {
+ if (![mView window]) return;
+
+ UpdateVibrancy(aThemeGeometries);
+
+ if (![[mView window] isKindOfClass:[ToolbarWindow class]]) return;
+
+ // Update unified toolbar height and sheet attachment position.
+ int32_t windowWidth = mBounds.width;
+ int32_t titlebarBottom = FindTitlebarBottom(aThemeGeometries, windowWidth);
+ int32_t unifiedToolbarBottom =
+ FindUnifiedToolbarBottom(aThemeGeometries, windowWidth, titlebarBottom);
+ int32_t toolboxBottom =
+ FindFirstRectOfType(aThemeGeometries, eThemeGeometryTypeToolbox).YMost();
+
+ ToolbarWindow* win = (ToolbarWindow*)[mView window];
+ int32_t titlebarHeight = [win drawsContentsIntoWindowFrame]
+ ? 0
+ : CocoaPointsToDevPixels([win titlebarHeight]);
+ int32_t devUnifiedHeight = titlebarHeight + unifiedToolbarBottom;
+ [win setUnifiedToolbarHeight:DevPixelsToCocoaPoints(devUnifiedHeight)];
+
+ int32_t sheetPositionDevPx = std::max(toolboxBottom, unifiedToolbarBottom);
+ NSPoint sheetPositionView = {0, DevPixelsToCocoaPoints(sheetPositionDevPx)};
+ NSPoint sheetPositionWindow = [mView convertPoint:sheetPositionView
+ toView:nil];
+ [win setSheetAttachmentPosition:sheetPositionWindow.y];
+
+ // Update titlebar control offsets.
+ LayoutDeviceIntRect windowButtonRect =
+ FindFirstRectOfType(aThemeGeometries, eThemeGeometryTypeWindowButtons);
+ [win placeWindowButtons:[mView convertRect:DevPixelsToCocoaPoints(
+ windowButtonRect)
+ toView:nil]];
+}
+
+static Maybe<VibrancyType> ThemeGeometryTypeToVibrancyType(
+ nsITheme::ThemeGeometryType aThemeGeometryType) {
+ switch (aThemeGeometryType) {
+ case eThemeGeometryTypeTooltip:
+ return Some(VibrancyType::TOOLTIP);
+ case eThemeGeometryTypeMenu:
+ return Some(VibrancyType::MENU);
+ default:
+ return Nothing();
+ }
+}
+
+static LayoutDeviceIntRegion GatherVibrantRegion(
+ const nsTArray<nsIWidget::ThemeGeometry>& aThemeGeometries,
+ VibrancyType aVibrancyType) {
+ LayoutDeviceIntRegion region;
+ for (auto& geometry : aThemeGeometries) {
+ if (ThemeGeometryTypeToVibrancyType(geometry.mType) ==
+ Some(aVibrancyType)) {
+ region.OrWith(geometry.mRect);
+ }
+ }
+ return region;
+}
+
+template <typename Region>
+static void MakeRegionsNonOverlappingImpl(Region& aOutUnion) {}
+
+template <typename Region, typename... Regions>
+static void MakeRegionsNonOverlappingImpl(Region& aOutUnion, Region& aFirst,
+ Regions&... aRest) {
+ MakeRegionsNonOverlappingImpl(aOutUnion, aRest...);
+ aFirst.SubOut(aOutUnion);
+ aOutUnion.OrWith(aFirst);
+}
+
+// Subtracts parts from regions in such a way that they don't have any overlap.
+// Each region in the argument list will have the union of all the regions
+// *following* it subtracted from itself. In other words, the arguments are
+// sorted low priority to high priority.
+template <typename Region, typename... Regions>
+static void MakeRegionsNonOverlapping(Region& aFirst, Regions&... aRest) {
+ Region unionOfAll;
+ MakeRegionsNonOverlappingImpl(unionOfAll, aFirst, aRest...);
+}
+
+void nsChildView::UpdateVibrancy(
+ const nsTArray<ThemeGeometry>& aThemeGeometries) {
+ LayoutDeviceIntRegion menuRegion =
+ GatherVibrantRegion(aThemeGeometries, VibrancyType::MENU);
+ LayoutDeviceIntRegion tooltipRegion =
+ GatherVibrantRegion(aThemeGeometries, VibrancyType::TOOLTIP);
+
+ MakeRegionsNonOverlapping(menuRegion, tooltipRegion);
+
+ auto& vm = EnsureVibrancyManager();
+ bool changed = false;
+ changed |= vm.UpdateVibrantRegion(VibrancyType::MENU, menuRegion);
+ changed |= vm.UpdateVibrantRegion(VibrancyType::TOOLTIP, tooltipRegion);
+
+ if (changed) {
+ SuspendAsyncCATransactions();
+ }
+}
+
+mozilla::VibrancyManager& nsChildView::EnsureVibrancyManager() {
+ MOZ_ASSERT(mView, "Only call this once we have a view!");
+ if (!mVibrancyManager) {
+ mVibrancyManager =
+ MakeUnique<VibrancyManager>(*this, [mView vibrancyViewsContainer]);
+ }
+ return *mVibrancyManager;
+}
+
+void nsChildView::UpdateBoundsFromView() {
+ auto oldSize = mBounds.Size();
+ mBounds = CocoaPointsToDevPixels([mView frame]);
+ if (mBounds.Size() != oldSize) {
+ SuspendAsyncCATransactions();
+ }
+}
+
+@interface NonDraggableView : NSView
+@end
+
+@implementation NonDraggableView
+- (BOOL)mouseDownCanMoveWindow {
+ return NO;
+}
+- (NSView*)hitTest:(NSPoint)aPoint {
+ return nil;
+}
+- (NSRect)_opaqueRectForWindowMoveWhenInTitlebar {
+ // In NSWindows that use NSWindowStyleMaskFullSizeContentView, NSViews which
+ // overlap the titlebar do not disable window dragging in the overlapping
+ // areas even if they return NO from mouseDownCanMoveWindow. This can have
+ // unfortunate effects: For example, dragging tabs in a browser window would
+ // move the window if those tabs are in the titlebar.
+ // macOS does not seem to offer a documented way to opt-out of the forced
+ // window dragging in the titlebar.
+ // Overriding _opaqueRectForWindowMoveWhenInTitlebar is an undocumented way
+ // of opting out of this behavior. This method was added in 10.11 and is used
+ // by some NSControl subclasses to prevent window dragging in the titlebar.
+ // The function which assembles the draggable area of the window calls
+ // _opaqueRect for the content area and _opaqueRectForWindowMoveWhenInTitlebar
+ // for the titlebar area, on all visible NSViews. The default implementation
+ // of _opaqueRect returns [self visibleRect], and the default implementation
+ // of _opaqueRectForWindowMoveWhenInTitlebar returns NSZeroRect unless it's
+ // overridden.
+ //
+ // Since this view is constructed and used such that its entire bounds is the
+ // relevant region, we just return our bounds.
+ return self.bounds;
+}
+@end
+
+void nsChildView::UpdateWindowDraggingRegion(
+ const LayoutDeviceIntRegion& aRegion) {
+ // mView returns YES from mouseDownCanMoveWindow, so we need to put NSViews
+ // that return NO from mouseDownCanMoveWindow in the places that shouldn't
+ // be draggable. We can't do it the other way round because returning
+ // YES from mouseDownCanMoveWindow doesn't have any effect if there's a
+ // superview that returns NO.
+ LayoutDeviceIntRegion nonDraggable;
+ nonDraggable.Sub(LayoutDeviceIntRect(0, 0, mBounds.width, mBounds.height),
+ aRegion);
+
+ __block bool changed = false;
+
+ // Suppress calls to setNeedsDisplay during NSView geometry changes.
+ ManipulateViewWithoutNeedingDisplay(mView, ^() {
+ changed = mNonDraggableRegion.UpdateRegion(
+ nonDraggable, *this, [mView nonDraggableViewsContainer], ^() {
+ return [[NonDraggableView alloc] initWithFrame:NSZeroRect];
+ });
+ });
+
+ if (changed) {
+ // Trigger an update to the window server. This will call
+ // mouseDownCanMoveWindow.
+ // Doing this manually is only necessary because we're suppressing
+ // setNeedsDisplay calls above.
+ [[mView window] setMovableByWindowBackground:NO];
+ [[mView window] setMovableByWindowBackground:YES];
+ }
+}
+
+nsEventStatus nsChildView::DispatchAPZInputEvent(InputData& aEvent) {
+ APZEventResult result;
+
+ if (mAPZC) {
+ result = mAPZC->InputBridge()->ReceiveInputEvent(aEvent);
+ }
+
+ if (result.GetStatus() == nsEventStatus_eConsumeNoDefault) {
+ return result.GetStatus();
+ }
+
+ if (aEvent.mInputType == PINCHGESTURE_INPUT) {
+ PinchGestureInput& pinchEvent = aEvent.AsPinchGestureInput();
+ WidgetWheelEvent wheelEvent = pinchEvent.ToWidgetEvent(this);
+ ProcessUntransformedAPZEvent(&wheelEvent, result);
+ } else if (aEvent.mInputType == TAPGESTURE_INPUT) {
+ TapGestureInput& tapEvent = aEvent.AsTapGestureInput();
+ WidgetSimpleGestureEvent gestureEvent = tapEvent.ToWidgetEvent(this);
+ ProcessUntransformedAPZEvent(&gestureEvent, result);
+ } else {
+ MOZ_ASSERT_UNREACHABLE();
+ }
+
+ return result.GetStatus();
+}
+
+void nsChildView::DispatchAPZWheelInputEvent(InputData& aEvent) {
+ if (mSwipeTracker && aEvent.mInputType == PANGESTURE_INPUT) {
+ // Give the swipe tracker a first pass at the event. If a new pan gesture
+ // has been started since the beginning of the swipe, the swipe tracker
+ // will know to ignore the event.
+ nsEventStatus status =
+ mSwipeTracker->ProcessEvent(aEvent.AsPanGestureInput());
+ if (status == nsEventStatus_eConsumeNoDefault) {
+ return;
+ }
+ }
+
+ WidgetWheelEvent event(true, eWheel, this);
+
+ if (mAPZC) {
+ APZEventResult result;
+
+ switch (aEvent.mInputType) {
+ case PANGESTURE_INPUT: {
+ result = mAPZC->InputBridge()->ReceiveInputEvent(aEvent);
+ if (result.GetStatus() == nsEventStatus_eConsumeNoDefault) {
+ return;
+ }
+
+ event = MayStartSwipeForAPZ(aEvent.AsPanGestureInput(), result);
+ break;
+ }
+ case SCROLLWHEEL_INPUT: {
+ // For wheel events on OS X, send it to APZ using the WidgetInputEvent
+ // variant of ReceiveInputEvent, because the APZInputBridge version of
+ // that function has special handling (for delta multipliers etc.) that
+ // we need to run. Using the InputData variant would bypass that and
+ // go straight to the APZCTreeManager subclass.
+ event = aEvent.AsScrollWheelInput().ToWidgetEvent(this);
+ result = mAPZC->InputBridge()->ReceiveInputEvent(event);
+ if (result.GetStatus() == nsEventStatus_eConsumeNoDefault) {
+ return;
+ }
+ break;
+ };
+ default:
+ MOZ_CRASH("unsupported event type");
+ return;
+ }
+ if (event.mMessage == eWheel &&
+ (event.mDeltaX != 0 || event.mDeltaY != 0)) {
+ ProcessUntransformedAPZEvent(&event, result);
+ }
+ return;
+ }
+
+ nsEventStatus status;
+ switch (aEvent.mInputType) {
+ case PANGESTURE_INPUT: {
+ if (MayStartSwipeForNonAPZ(aEvent.AsPanGestureInput())) {
+ return;
+ }
+ event = aEvent.AsPanGestureInput().ToWidgetEvent(this);
+ break;
+ }
+ case SCROLLWHEEL_INPUT: {
+ event = aEvent.AsScrollWheelInput().ToWidgetEvent(this);
+ break;
+ }
+ default:
+ MOZ_CRASH("unexpected event type");
+ return;
+ }
+ if (event.mMessage == eWheel && (event.mDeltaX != 0 || event.mDeltaY != 0)) {
+ DispatchEvent(&event, status);
+ }
+}
+
+void nsChildView::DispatchDoubleTapGesture(TimeStamp aEventTimeStamp,
+ LayoutDeviceIntPoint aScreenPosition,
+ mozilla::Modifiers aModifiers) {
+ if (StaticPrefs::apz_mac_enable_double_tap_zoom_touchpad_gesture()) {
+ TapGestureInput event{
+ TapGestureInput::TAPGESTURE_DOUBLE, aEventTimeStamp,
+ ViewAs<ScreenPixel>(
+ aScreenPosition,
+ PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent),
+ aModifiers};
+
+ DispatchAPZInputEvent(event);
+ } else {
+ // Setup the "double tap" event.
+ WidgetSimpleGestureEvent geckoEvent(true, eTapGesture, this);
+ // do what convertCocoaMouseEvent does basically.
+ geckoEvent.mRefPoint = aScreenPosition;
+ geckoEvent.mModifiers = aModifiers;
+ geckoEvent.mTimeStamp = aEventTimeStamp;
+ geckoEvent.mClickCount = 1;
+
+ // Send the event.
+ DispatchWindowEvent(geckoEvent);
+ }
+}
+
+void nsChildView::LookUpDictionary(
+ const nsAString& aText, const nsTArray<mozilla::FontRange>& aFontRangeArray,
+ const bool aIsVertical, const LayoutDeviceIntPoint& aPoint) {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ NSMutableAttributedString* attrStr =
+ nsCocoaUtils::GetNSMutableAttributedString(
+ aText, aFontRangeArray, aIsVertical, BackingScaleFactor());
+ NSPoint pt =
+ nsCocoaUtils::DevPixelsToCocoaPoints(aPoint, BackingScaleFactor());
+ NSDictionary* attributes = [attrStr attributesAtIndex:0 effectiveRange:nil];
+ NSFont* font = [attributes objectForKey:NSFontAttributeName];
+ if (font) {
+ if (aIsVertical) {
+ pt.x -= [font descender];
+ } else {
+ pt.y += [font ascender];
+ }
+ }
+
+ [mView showDefinitionForAttributedString:attrStr atPoint:pt];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+#ifdef ACCESSIBILITY
+already_AddRefed<a11y::LocalAccessible> nsChildView::GetDocumentAccessible() {
+ if (!mozilla::a11y::ShouldA11yBeEnabled()) return nullptr;
+
+ // mAccessible might be dead if accessibility was previously disabled and is
+ // now being enabled again.
+ if (mAccessible && mAccessible->IsAlive()) {
+ RefPtr<a11y::LocalAccessible> ret;
+ CallQueryReferent(mAccessible.get(), static_cast<a11y::LocalAccessible**>(
+ getter_AddRefs(ret)));
+ return ret.forget();
+ }
+
+ // need to fetch the accessible anew, because it has gone away.
+ // cache the accessible in our weak ptr
+ RefPtr<a11y::LocalAccessible> acc = GetRootAccessible();
+ mAccessible = do_GetWeakReference(acc.get());
+
+ return acc.forget();
+}
+#endif
+
+class WidgetsReleaserRunnable final : public mozilla::Runnable {
+ public:
+ explicit WidgetsReleaserRunnable(nsTArray<nsCOMPtr<nsIWidget>>&& aWidgetArray)
+ : mozilla::Runnable("WidgetsReleaserRunnable"),
+ mWidgetArray(std::move(aWidgetArray)) {}
+
+ // Do nothing; all this runnable does is hold a reference the widgets in
+ // mWidgetArray, and those references will be dropped when this runnable
+ // is destroyed.
+
+ private:
+ nsTArray<nsCOMPtr<nsIWidget>> mWidgetArray;
+};
+
+#pragma mark -
+
+// ViewRegionContainerView is a view class for certain subviews of ChildView
+// which contain the NSViews created for ViewRegions (see ViewRegion.h).
+// It doesn't do anything interesting, it only acts as a container so that it's
+// easier for ChildView to control the z order of its children.
+@interface ViewRegionContainerView : NSView {
+}
+@end
+
+@implementation ViewRegionContainerView
+
+- (NSView*)hitTest:(NSPoint)aPoint {
+ return nil; // Be transparent to mouse events.
+}
+
+- (BOOL)isFlipped {
+ return [[self superview] isFlipped];
+}
+
+- (BOOL)mouseDownCanMoveWindow {
+ return [[self superview] mouseDownCanMoveWindow];
+}
+
+@end
+
+@implementation ChildView
+
+// globalDragPboard is non-null during native drag sessions that did not
+// originate in our native NSView (it is set in |draggingEntered:|). It is unset
+// when the drag session ends for this view, either with the mouse exiting or
+// when a drop occurs in this view.
+NSPasteboard* globalDragPboard = nil;
+
+// gLastDragView and gLastDragMouseDownEvent are used to communicate information
+// to the drag service during drag invocation (starting a drag in from the
+// view). gLastDragView is only non-null while a mouse button is pressed, so
+// between mouseDown and mouseUp.
+NSView* gLastDragView = nil; // [weak]
+NSEvent* gLastDragMouseDownEvent = nil; // [strong]
+
++ (void)initialize {
+ static BOOL initialized = NO;
+
+ if (!initialized) {
+ // Inform the OS about the types of services (from the "Services" menu)
+ // that we can handle.
+ NSArray* types = @[
+ [UTIHelper stringFromPboardType:NSPasteboardTypeString],
+ [UTIHelper stringFromPboardType:NSPasteboardTypeHTML]
+ ];
+ [NSApp registerServicesMenuSendTypes:types returnTypes:types];
+ initialized = YES;
+ }
+}
+
++ (void)registerViewForDraggedTypes:(NSView*)aView {
+ [aView
+ registerForDraggedTypes:
+ [NSArray
+ arrayWithObjects:
+ [UTIHelper stringFromPboardType:NSFilenamesPboardType],
+ [UTIHelper stringFromPboardType:kMozFileUrlsPboardType],
+ [UTIHelper stringFromPboardType:NSPasteboardTypeString],
+ [UTIHelper stringFromPboardType:NSPasteboardTypeHTML],
+ [UTIHelper
+ stringFromPboardType:(NSString*)
+ kPasteboardTypeFileURLPromise],
+ [UTIHelper stringFromPboardType:kMozWildcardPboardType],
+ [UTIHelper stringFromPboardType:kPublicUrlPboardType],
+ [UTIHelper stringFromPboardType:kPublicUrlNamePboardType],
+ [UTIHelper stringFromPboardType:kUrlsWithTitlesPboardType],
+ nil]];
+}
+
+// initWithFrame:geckoChild:
+- (id)initWithFrame:(NSRect)inFrame geckoChild:(nsChildView*)inChild {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if ((self = [super initWithFrame:inFrame])) {
+ mGeckoChild = inChild;
+ mBlockedLastMouseDown = NO;
+ mExpectingWheelStop = NO;
+
+ mLastMouseDownEvent = nil;
+ mLastKeyDownEvent = nil;
+ mClickThroughMouseDownEvent = nil;
+ mDragService = nullptr;
+
+ mGestureState = eGestureState_None;
+ mCumulativeRotation = 0.0;
+
+ mIsUpdatingLayer = NO;
+
+ [self setFocusRingType:NSFocusRingTypeNone];
+
+#ifdef __LP64__
+ mCancelSwipeAnimation = nil;
+#endif
+
+ mNonDraggableViewsContainer =
+ [[ViewRegionContainerView alloc] initWithFrame:[self bounds]];
+ mVibrancyViewsContainer =
+ [[ViewRegionContainerView alloc] initWithFrame:[self bounds]];
+
+ [mNonDraggableViewsContainer
+ setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
+ [mVibrancyViewsContainer
+ setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
+
+ [self addSubview:mNonDraggableViewsContainer];
+ [self addSubview:mVibrancyViewsContainer];
+
+ mPixelHostingView = [[PixelHostingView alloc] initWithFrame:[self bounds]];
+ [mPixelHostingView
+ setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
+
+ [self addSubview:mPixelHostingView];
+
+ mRootCALayer = [[CALayer layer] retain];
+ mRootCALayer.position = NSZeroPoint;
+ mRootCALayer.bounds = NSZeroRect;
+ mRootCALayer.anchorPoint = NSZeroPoint;
+ mRootCALayer.contentsGravity = kCAGravityTopLeft;
+ [[mPixelHostingView layer] addSublayer:mRootCALayer];
+
+ mLastPressureStage = 0;
+ }
+
+ // register for things we'll take from other applications
+ [ChildView registerViewForDraggedTypes:self];
+
+ return self;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nil);
+}
+
+- (NSTextInputContext*)inputContext {
+ if (!mGeckoChild) {
+ // -[ChildView widgetDestroyed] has been called, but
+ // -[ChildView delayedTearDown] has not yet completed. Accessing
+ // [super inputContext] now would uselessly recreate a text input context
+ // for us, under which -[ChildView validAttributesForMarkedText] would
+ // be called and the assertion checking for mTextInputHandler would fail.
+ // We return nil to avoid that.
+ return nil;
+ }
+ return [super inputContext];
+}
+
+- (void)installTextInputHandler:(TextInputHandler*)aHandler {
+ mTextInputHandler = aHandler;
+}
+
+- (void)uninstallTextInputHandler {
+ mTextInputHandler = nullptr;
+}
+
+- (NSView*)vibrancyViewsContainer {
+ return mVibrancyViewsContainer;
+}
+
+- (NSView*)nonDraggableViewsContainer {
+ return mNonDraggableViewsContainer;
+}
+
+- (NSView*)pixelHostingView {
+ return mPixelHostingView;
+}
+
+- (void)dealloc {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ [mLastMouseDownEvent release];
+ [mLastKeyDownEvent release];
+ [mClickThroughMouseDownEvent release];
+ ChildViewMouseTracker::OnDestroyView(self);
+
+ [mVibrancyViewsContainer removeFromSuperview];
+ [mVibrancyViewsContainer release];
+ [mNonDraggableViewsContainer removeFromSuperview];
+ [mNonDraggableViewsContainer release];
+ [mPixelHostingView removeFromSuperview];
+ [mPixelHostingView release];
+ [mRootCALayer release];
+
+ if (gLastDragView == self) {
+ gLastDragView = nil;
+ }
+
+ [super dealloc];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)widgetDestroyed {
+ if (mTextInputHandler) {
+ mTextInputHandler->OnDestroyWidget(mGeckoChild);
+ mTextInputHandler = nullptr;
+ }
+ mGeckoChild = nullptr;
+
+ // Just in case we're destroyed abruptly and missed the draggingExited
+ // or performDragOperation message.
+ NS_IF_RELEASE(mDragService);
+}
+
+// mozView method, return our gecko child view widget. Note this does not
+// AddRef.
+- (nsIWidget*)widget {
+ return static_cast<nsIWidget*>(mGeckoChild);
+}
+
+- (NSString*)description {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ return [NSString stringWithFormat:@"ChildView %p, gecko child %p, frame %@",
+ self, mGeckoChild,
+ NSStringFromRect([self frame])];
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nil);
+}
+
+// Make the origin of this view the topLeft corner (gecko origin) rather
+// than the bottomLeft corner (standard cocoa origin).
+- (BOOL)isFlipped {
+ return YES;
+}
+
+// We accept key and mouse events, so don't keep passing them up the chain.
+// Allow this to be a 'focused' widget for event dispatch.
+- (BOOL)acceptsFirstResponder {
+ return YES;
+}
+
+// Accept mouse down events on background windows
+- (BOOL)acceptsFirstMouse:(NSEvent*)aEvent {
+ if (![[self window] isKindOfClass:[PopupWindow class]]) {
+ // We rely on this function to tell us that the mousedown was on a
+ // background window. Inside mouseDown we can't tell whether we were
+ // inactive because at that point we've already been made active.
+ // Unfortunately, acceptsFirstMouse is called for PopupWindows even when
+ // their parent window is active, so ignore this on them for now.
+ mClickThroughMouseDownEvent = [aEvent retain];
+ }
+ return YES;
+}
+
+- (BOOL)mouseDownCanMoveWindow {
+ // Return YES so that parts of this view can be draggable. The non-draggable
+ // parts will be covered by NSViews that return NO from
+ // mouseDownCanMoveWindow and thus override draggability from the inside.
+ // These views are assembled in nsChildView::UpdateWindowDraggingRegion.
+ return YES;
+}
+
+- (void)viewDidChangeBackingProperties {
+ [super viewDidChangeBackingProperties];
+ if (mGeckoChild) {
+ // actually, it could be the color space that's changed,
+ // but we can't tell the difference here except by retrieving
+ // the backing scale factor and comparing to the old value
+ mGeckoChild->BackingScaleFactorChanged();
+ }
+}
+
+- (BOOL)isCoveringTitlebar {
+ return [[self window] isKindOfClass:[BaseWindow class]] &&
+ [(BaseWindow*)[self window] mainChildView] == self &&
+ [(BaseWindow*)[self window] drawsContentsIntoWindowFrame];
+}
+
+- (void)viewWillStartLiveResize {
+ nsCocoaWindow* windowWidget =
+ mGeckoChild ? mGeckoChild->GetAppWindowWidget() : nullptr;
+ if (windowWidget) {
+ windowWidget->NotifyLiveResizeStarted();
+ }
+}
+
+- (void)viewDidEndLiveResize {
+ // mGeckoChild may legitimately be null here. It should also have been null
+ // in viewWillStartLiveResize, so there's no problem. However if we run into
+ // cases where the windowWidget was non-null in viewWillStartLiveResize but
+ // is null here, that might be problematic because we might get stuck with
+ // a content process that has the displayport suppressed. If that scenario
+ // arises (I'm not sure that it does) we will need to handle it gracefully.
+ nsCocoaWindow* windowWidget =
+ mGeckoChild ? mGeckoChild->GetAppWindowWidget() : nullptr;
+ if (windowWidget) {
+ windowWidget->NotifyLiveResizeStopped();
+ }
+}
+
+- (void)markLayerForDisplay {
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+ if (!mIsUpdatingLayer) {
+ // This call will cause updateRootCALayer to be called during the upcoming
+ // main thread CoreAnimation transaction. It will also trigger a transaction
+ // if no transaction is currently pending.
+ [[mPixelHostingView layer] setNeedsDisplay];
+ }
+}
+
+- (void)ensureNextCompositeIsAtomicWithMainThreadPaint {
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+ if (mGeckoChild) {
+ mGeckoChild->SuspendAsyncCATransactions();
+ }
+}
+
+- (void)updateRootCALayer {
+ if (NS_IsMainThread() && mGeckoChild) {
+ MOZ_RELEASE_ASSERT(!mIsUpdatingLayer, "Re-entrant layer display?");
+ mIsUpdatingLayer = YES;
+ mGeckoChild->HandleMainThreadCATransaction();
+ mIsUpdatingLayer = NO;
+ }
+}
+
+- (CALayer*)rootCALayer {
+ return mRootCALayer;
+}
+
+// If we've just created a non-native context menu, we need to mark it as
+// such and let the OS (and other programs) know when it opens and closes
+// (this is how the OS knows to close other programs' context menus when
+// ours open). We send the initial notification here, but others are sent
+// in nsCocoaWindow::Show().
+- (void)maybeInitContextMenuTracking {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (mozilla::widget::NativeMenuSupport::ShouldUseNativeContextMenus()) {
+ return;
+ }
+
+ nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
+ NS_ENSURE_TRUE_VOID(rollupListener);
+ nsCOMPtr<nsIWidget> widget = rollupListener->GetRollupWidget();
+ NS_ENSURE_TRUE_VOID(widget);
+
+ NSWindow* popupWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
+ if (!popupWindow || ![popupWindow isKindOfClass:[PopupWindow class]]) return;
+
+ [[NSDistributedNotificationCenter defaultCenter]
+ postNotificationName:@"com.apple.HIToolbox.beginMenuTrackingNotification"
+ object:@"org.mozilla.gecko.PopupWindow"];
+ [(PopupWindow*)popupWindow setIsContextMenu:YES];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Returns true if the event should no longer be processed, false otherwise.
+// This does not return whether or not anything was rolled up.
+- (BOOL)maybeRollup:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ BOOL consumeEvent = NO;
+
+ nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
+ NS_ENSURE_TRUE(rollupListener, false);
+
+ BOOL isWheelTypeEvent = [theEvent type] == NSEventTypeScrollWheel ||
+ [theEvent type] == NSEventTypeMagnify ||
+ [theEvent type] == NSEventTypeSmartMagnify;
+
+ if (!isWheelTypeEvent && rollupListener->RollupNativeMenu()) {
+ // A native menu was rolled up.
+ // Don't consume this event; if the menu wanted to consume this event it
+ // would already have done so and we wouldn't even get here. For example, we
+ // won't get here for left clicks that close native menus (because the
+ // native menu consumes it), but we will get here for right clicks that
+ // close native menus, and we do not want to consume those right clicks.
+ return NO;
+ }
+
+ nsCOMPtr<nsIWidget> rollupWidget = rollupListener->GetRollupWidget();
+ if (!rollupWidget) {
+ return consumeEvent;
+ }
+
+ NSWindow* currentPopup =
+ static_cast<NSWindow*>(rollupWidget->GetNativeData(NS_NATIVE_WINDOW));
+ if (nsCocoaUtils::IsEventOverWindow(theEvent, currentPopup)) {
+ return consumeEvent;
+ }
+
+ // Check to see if scroll/zoom events should roll up the popup
+ if (isWheelTypeEvent) {
+ // consume scroll events that aren't over the popup unless the popup is an
+ // arrow panel.
+ consumeEvent = rollupListener->ShouldConsumeOnMouseWheelEvent();
+ if (!rollupListener->ShouldRollupOnMouseWheelEvent()) {
+ return consumeEvent;
+ }
+ }
+
+ // if we're dealing with menus, we probably have submenus and
+ // we don't want to rollup if the click is in a parent menu of
+ // the current submenu
+ uint32_t popupsToRollup = UINT32_MAX;
+ AutoTArray<nsIWidget*, 5> widgetChain;
+ uint32_t sameTypeCount = rollupListener->GetSubmenuWidgetChain(&widgetChain);
+ for (uint32_t i = 0; i < widgetChain.Length(); i++) {
+ nsIWidget* widget = widgetChain[i];
+ NSWindow* currWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
+ if (nsCocoaUtils::IsEventOverWindow(theEvent, currWindow)) {
+ // don't roll up if the mouse event occurred within a menu of the
+ // same type. If the mouse event occurred in a menu higher than
+ // that, roll up, but pass the number of popups to Rollup so
+ // that only those of the same type close up.
+ if (i < sameTypeCount) {
+ return consumeEvent;
+ }
+ popupsToRollup = sameTypeCount;
+ break;
+ }
+ }
+
+ LayoutDeviceIntPoint devPoint;
+ nsIRollupListener::RollupOptions rollupOptions{
+ popupsToRollup, nsIRollupListener::FlushViews::Yes};
+ if ([theEvent type] == NSEventTypeLeftMouseDown) {
+ NSPoint point = [NSEvent mouseLocation];
+ FlipCocoaScreenCoordinate(point);
+ devPoint = mGeckoChild->CocoaPointsToDevPixels(point);
+ rollupOptions.mPoint = &devPoint;
+ }
+ consumeEvent = (BOOL)rollupListener->Rollup(rollupOptions);
+ return consumeEvent;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NO);
+}
+
+- (void)swipeWithEvent:(NSEvent*)anEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!anEvent || !mGeckoChild) {
+ return;
+ }
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ float deltaX = [anEvent deltaX]; // left=1.0, right=-1.0
+ float deltaY = [anEvent deltaY]; // up=1.0, down=-1.0
+
+ // Setup the "swipe" event.
+ WidgetSimpleGestureEvent geckoEvent(true, eSwipeGesture, mGeckoChild);
+ [self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
+
+ // Record the left/right direction.
+ if (deltaX > 0.0)
+ geckoEvent.mDirection |= dom::SimpleGestureEvent_Binding::DIRECTION_LEFT;
+ else if (deltaX < 0.0)
+ geckoEvent.mDirection |= dom::SimpleGestureEvent_Binding::DIRECTION_RIGHT;
+
+ // Record the up/down direction.
+ if (deltaY > 0.0)
+ geckoEvent.mDirection |= dom::SimpleGestureEvent_Binding::DIRECTION_UP;
+ else if (deltaY < 0.0)
+ geckoEvent.mDirection |= dom::SimpleGestureEvent_Binding::DIRECTION_DOWN;
+
+ // Send the event.
+ mGeckoChild->DispatchWindowEvent(geckoEvent);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Pinch zoom gesture.
+- (void)magnifyWithEvent:(NSEvent*)anEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if ([self maybeRollup:anEvent]) {
+ return;
+ }
+
+ if (!mGeckoChild) {
+ return;
+ }
+
+ // Instead of calling beginOrEndGestureForEventPhase we basically inline
+ // the effects of it here, because that function doesn't play too well with
+ // how we create PinchGestureInput events below. The main point of that
+ // function is to avoid flip-flopping between rotation/magnify gestures, which
+ // we can do by checking and setting mGestureState appropriately. A secondary
+ // result of that function is to send the final eMagnifyGesture event when
+ // the gesture ends, but APZ takes care of that for us.
+ if (mGestureState == eGestureState_RotateGesture &&
+ [anEvent phase] != NSEventPhaseBegan) {
+ // If we're already in a rotation and not "starting" a magnify, abort.
+ return;
+ }
+ mGestureState = eGestureState_MagnifyGesture;
+
+ NSPoint locationInWindow =
+ nsCocoaUtils::EventLocationForWindow(anEvent, [self window]);
+ ScreenPoint position = ViewAs<ScreenPixel>(
+ [self convertWindowCoordinatesRoundDown:locationInWindow],
+ PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent);
+ ExternalPoint screenOffset = ViewAs<ExternalPixel>(
+ mGeckoChild->WidgetToScreenOffset(),
+ PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent);
+
+ TimeStamp eventTimeStamp =
+ nsCocoaUtils::GetEventTimeStamp([anEvent timestamp]);
+ NSEventPhase eventPhase = [anEvent phase];
+ PinchGestureInput::PinchGestureType pinchGestureType;
+
+ switch (eventPhase) {
+ case NSEventPhaseBegan: {
+ pinchGestureType = PinchGestureInput::PINCHGESTURE_START;
+ break;
+ }
+ case NSEventPhaseChanged: {
+ pinchGestureType = PinchGestureInput::PINCHGESTURE_SCALE;
+ break;
+ }
+ case NSEventPhaseEnded: {
+ pinchGestureType = PinchGestureInput::PINCHGESTURE_END;
+ mGestureState = eGestureState_None;
+ break;
+ }
+ default: {
+ NS_WARNING("Unexpected phase for pinch gesture event.");
+ return;
+ }
+ }
+
+ PinchGestureInput event{pinchGestureType,
+ PinchGestureInput::TRACKPAD,
+ eventTimeStamp,
+ screenOffset,
+ position,
+ 100.0,
+ 100.0 * (1.0 - [anEvent magnification]),
+ nsCocoaUtils::ModifiersForEvent(anEvent)};
+
+ mGeckoChild->DispatchAPZInputEvent(event);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Smart zoom gesture, i.e. two-finger double tap on trackpads.
+- (void)smartMagnifyWithEvent:(NSEvent*)anEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!anEvent || !mGeckoChild ||
+ [self beginOrEndGestureForEventPhase:anEvent]) {
+ return;
+ }
+
+ if ([self maybeRollup:anEvent]) {
+ return;
+ }
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ if (StaticPrefs::apz_mac_enable_double_tap_zoom_touchpad_gesture()) {
+ TimeStamp eventTimeStamp =
+ nsCocoaUtils::GetEventTimeStamp([anEvent timestamp]);
+ NSPoint locationInWindow =
+ nsCocoaUtils::EventLocationForWindow(anEvent, [self window]);
+ LayoutDevicePoint position =
+ [self convertWindowCoordinatesRoundDown:locationInWindow];
+
+ mGeckoChild->DispatchDoubleTapGesture(
+ eventTimeStamp, RoundedToInt(position),
+ nsCocoaUtils::ModifiersForEvent(anEvent));
+ } else {
+ // Setup the "double tap" event.
+ WidgetSimpleGestureEvent geckoEvent(true, eTapGesture, mGeckoChild);
+ [self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mClickCount = 1;
+
+ // Send the event.
+ mGeckoChild->DispatchWindowEvent(geckoEvent);
+ }
+
+ // Clear the gesture state
+ mGestureState = eGestureState_None;
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)rotateWithEvent:(NSEvent*)anEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!anEvent || !mGeckoChild ||
+ [self beginOrEndGestureForEventPhase:anEvent]) {
+ return;
+ }
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ float rotation = [anEvent rotation];
+
+ EventMessage msg;
+ switch (mGestureState) {
+ case eGestureState_StartGesture:
+ msg = eRotateGestureStart;
+ mGestureState = eGestureState_RotateGesture;
+ break;
+
+ case eGestureState_RotateGesture:
+ msg = eRotateGestureUpdate;
+ break;
+
+ case eGestureState_None:
+ case eGestureState_MagnifyGesture:
+ default:
+ return;
+ }
+
+ // Setup the event.
+ WidgetSimpleGestureEvent geckoEvent(true, msg, mGeckoChild);
+ [self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mDelta = -rotation;
+ if (rotation > 0.0) {
+ geckoEvent.mDirection =
+ dom::SimpleGestureEvent_Binding::ROTATION_COUNTERCLOCKWISE;
+ } else {
+ geckoEvent.mDirection = dom::SimpleGestureEvent_Binding::ROTATION_CLOCKWISE;
+ }
+
+ // Send the event.
+ mGeckoChild->DispatchWindowEvent(geckoEvent);
+
+ // Keep track of the cumulative rotation for the final "rotate" event.
+ mCumulativeRotation += rotation;
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// `beginGestureWithEvent` and `endGestureWithEvent` are not called for
+// applications that link against the macOS 10.11 or later SDK when we're
+// running on macOS 10.11 or later. For compatibility with all supported macOS
+// versions, we have to call {begin,end}GestureWithEvent ourselves based on
+// the event phase when we're handling gestures.
+- (bool)beginOrEndGestureForEventPhase:(NSEvent*)aEvent {
+ if (!aEvent) {
+ return false;
+ }
+
+ if (aEvent.phase == NSEventPhaseBegan) {
+ [self beginGestureWithEvent:aEvent];
+ return true;
+ }
+
+ if (aEvent.phase == NSEventPhaseEnded ||
+ aEvent.phase == NSEventPhaseCancelled) {
+ [self endGestureWithEvent:aEvent];
+ return true;
+ }
+
+ return false;
+}
+
+- (void)beginGestureWithEvent:(NSEvent*)aEvent {
+ if (!aEvent) {
+ return;
+ }
+
+ mGestureState = eGestureState_StartGesture;
+ mCumulativeRotation = 0.0;
+}
+
+- (void)endGestureWithEvent:(NSEvent*)anEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!anEvent || !mGeckoChild) {
+ // Clear the gestures state if we cannot send an event.
+ mGestureState = eGestureState_None;
+ mCumulativeRotation = 0.0;
+ return;
+ }
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ switch (mGestureState) {
+ case eGestureState_RotateGesture: {
+ // Setup the "rotate" event.
+ WidgetSimpleGestureEvent geckoEvent(true, eRotateGesture, mGeckoChild);
+ [self convertCocoaMouseEvent:anEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mDelta = -mCumulativeRotation;
+ if (mCumulativeRotation > 0.0) {
+ geckoEvent.mDirection =
+ dom::SimpleGestureEvent_Binding::ROTATION_COUNTERCLOCKWISE;
+ } else {
+ geckoEvent.mDirection =
+ dom::SimpleGestureEvent_Binding::ROTATION_CLOCKWISE;
+ }
+
+ // Send the event.
+ mGeckoChild->DispatchWindowEvent(geckoEvent);
+ } break;
+
+ case eGestureState_MagnifyGesture: // APZ handles sending the widget events
+ case eGestureState_None:
+ case eGestureState_StartGesture:
+ default:
+ break;
+ }
+
+ // Clear the gestures state.
+ mGestureState = eGestureState_None;
+ mCumulativeRotation = 0.0;
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)setUsingOMTCompositor:(BOOL)aUseOMTC {
+ mUsingOMTCompositor = aUseOMTC;
+}
+
+// Returning NO from this method only disallows ordering on mousedown - in order
+// to prevent it for mouseup too, we need to call [NSApp preventWindowOrdering]
+// when handling the mousedown event.
+- (BOOL)shouldDelayWindowOrderingForEvent:(NSEvent*)aEvent {
+ // Always using system-provided window ordering for normal windows.
+ if (![[self window] isKindOfClass:[PopupWindow class]]) return NO;
+
+ // Don't reorder when we don't have a parent window, like when we're a
+ // context menu or a tooltip.
+ return ![[self window] parentWindow];
+}
+
+- (void)mouseDown:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+ mPerformedDrag = NO;
+
+ if ([self shouldDelayWindowOrderingForEvent:theEvent]) {
+ [NSApp preventWindowOrdering];
+ }
+
+ // If we've already seen this event due to direct dispatch from menuForEvent:
+ // just bail; if not, remember it.
+ if (mLastMouseDownEvent == theEvent) {
+ [mLastMouseDownEvent release];
+ mLastMouseDownEvent = nil;
+ return;
+ } else {
+ [mLastMouseDownEvent release];
+ mLastMouseDownEvent = [theEvent retain];
+ }
+
+ [gLastDragMouseDownEvent release];
+ gLastDragMouseDownEvent = [theEvent retain];
+ gLastDragView = self;
+
+ // We need isClickThrough because at this point the window we're in might
+ // already have become main, so the check for isMainWindow in
+ // WindowAcceptsEvent isn't enough. It also has to check isClickThrough.
+ BOOL isClickThrough = (theEvent == mClickThroughMouseDownEvent);
+ [mClickThroughMouseDownEvent release];
+ mClickThroughMouseDownEvent = nil;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ if ([self maybeRollup:theEvent] ||
+ !ChildViewMouseTracker::WindowAcceptsEvent([self window], theEvent, self,
+ isClickThrough)) {
+ // Remember blocking because that means we want to block mouseup as well.
+ mBlockedLastMouseDown = YES;
+ return;
+ }
+
+ // in order to send gecko events we'll need a gecko widget
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseDown, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+
+ NSInteger clickCount = [theEvent clickCount];
+ if (mBlockedLastMouseDown && clickCount > 1) {
+ // Don't send a double click if the first click of the double click was
+ // blocked.
+ clickCount--;
+ }
+ geckoEvent.mClickCount = clickCount;
+
+ if (!StaticPrefs::dom_event_treat_ctrl_click_as_right_click_disabled() &&
+ geckoEvent.IsControl()) {
+ geckoEvent.mButton = MouseButton::eSecondary;
+ } else {
+ geckoEvent.mButton = MouseButton::ePrimary;
+ // Don't send a click if ctrl key is pressed.
+ geckoEvent.mClickEventPrevented = geckoEvent.IsControl();
+ }
+
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+ mBlockedLastMouseDown = NO;
+
+ // XXX maybe call markedTextSelectionChanged:client: here?
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)mouseUp:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ gLastDragView = nil;
+
+ if (!mGeckoChild || mBlockedLastMouseDown || mPerformedDrag) {
+ // There is case that mouseUp event will be fired right after DnD on OSX. As
+ // mPerformedDrag will be YES at end of DnD processing, ignore this mouseUp
+ // event fired right after DnD.
+ return;
+ }
+
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ WidgetMouseEvent geckoEvent(true, eMouseUp, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+
+ if (!StaticPrefs::dom_event_treat_ctrl_click_as_right_click_disabled() &&
+ ([theEvent modifierFlags] & NSEventModifierFlagControl)) {
+ geckoEvent.mButton = MouseButton::eSecondary;
+ } else {
+ geckoEvent.mButton = MouseButton::ePrimary;
+ }
+
+ // Remember the event's position before calling DispatchInputEvent, because
+ // that call can mutate it and convert it into a different coordinate space.
+ LayoutDeviceIntPoint pos = geckoEvent.mRefPoint;
+
+ // This might destroy our widget (and null out mGeckoChild).
+ bool defaultPrevented =
+ (mGeckoChild->DispatchInputEvent(&geckoEvent).mContentStatus ==
+ nsEventStatus_eConsumeNoDefault);
+
+ if (!mGeckoChild) {
+ return;
+ }
+
+ // Check to see if we are double-clicking in draggable parts of the window.
+ if (!defaultPrevented && [theEvent clickCount] == 2 &&
+ !mGeckoChild->GetNonDraggableRegion().Contains(pos.x, pos.y)) {
+ if (nsCocoaUtils::ShouldZoomOnTitlebarDoubleClick()) {
+ [[self window] performZoom:nil];
+ } else if (nsCocoaUtils::ShouldMinimizeOnTitlebarDoubleClick()) {
+ [[self window] performMiniaturize:nil];
+ }
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)sendMouseEnterOrExitEvent:(NSEvent*)aEvent
+ enter:(BOOL)aEnter
+ exitFrom:(WidgetMouseEvent::ExitFrom)aExitFrom {
+ if (!mGeckoChild) return;
+
+ NSPoint windowEventLocation =
+ nsCocoaUtils::EventLocationForWindow(aEvent, [self window]);
+ NSPoint localEventLocation = [self convertPoint:windowEventLocation
+ fromView:nil];
+
+ EventMessage msg = aEnter ? eMouseEnterIntoWidget : eMouseExitFromWidget;
+ WidgetMouseEvent event(true, msg, mGeckoChild, WidgetMouseEvent::eReal);
+ event.mRefPoint = mGeckoChild->CocoaPointsToDevPixels(localEventLocation);
+ if (event.mMessage == eMouseExitFromWidget) {
+ event.mExitFrom = Some(aExitFrom);
+ }
+ nsEventStatus status; // ignored
+ mGeckoChild->DispatchEvent(&event, status);
+}
+
+- (void)handleMouseMoved:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)mouseDragged:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+
+ // Note, sending the above event might have destroyed our widget since we
+ // didn't retain. Fine so long as we don't access any local variables from
+ // here on.
+
+ // XXX maybe call markedTextSelectionChanged:client: here?
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)rightMouseDown:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+ mPerformedDrag = NO;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ [self maybeRollup:theEvent];
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ // The right mouse went down, fire off a right mouse down event to gecko
+ WidgetMouseEvent geckoEvent(true, eMouseDown, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mButton = MouseButton::eSecondary;
+ geckoEvent.mClickCount = [theEvent clickCount];
+
+ nsIWidget::ContentAndAPZEventStatus eventStatus =
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+ if (!mGeckoChild) return;
+
+ if (!StaticPrefs::ui_context_menus_after_mouseup() &&
+ eventStatus.mApzStatus != nsEventStatus_eConsumeNoDefault) {
+ // Let the superclass do the context menu stuff.
+ [super rightMouseDown:theEvent];
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)rightMouseUp:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseUp, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mButton = MouseButton::eSecondary;
+ geckoEvent.mClickCount = [theEvent clickCount];
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ nsIWidget::ContentAndAPZEventStatus eventStatus =
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+ if (!mGeckoChild) return;
+
+ if (StaticPrefs::ui_context_menus_after_mouseup() &&
+ eventStatus.mApzStatus != nsEventStatus_eConsumeNoDefault) {
+ // Let the superclass do the context menu stuff, but pretend it's
+ // rightMouseDown.
+ NSEvent* dupeEvent = [NSEvent mouseEventWithType:NSEventTypeRightMouseDown
+ location:theEvent.locationInWindow
+ modifierFlags:theEvent.modifierFlags
+ timestamp:theEvent.timestamp
+ windowNumber:theEvent.windowNumber
+ context:nil
+ eventNumber:theEvent.eventNumber
+ clickCount:theEvent.clickCount
+ pressure:theEvent.pressure];
+
+ [super rightMouseDown:dupeEvent];
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)rightMouseDragged:(NSEvent*)theEvent {
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mButton = MouseButton::eSecondary;
+
+ // send event into Gecko by going directly to the
+ // the widget.
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+}
+
+static bool ShouldDispatchBackForwardCommandForMouseButton(int16_t aButton) {
+ return (aButton == MouseButton::eX1 &&
+ Preferences::GetBool("mousebutton.4th.enabled", true)) ||
+ (aButton == MouseButton::eX2 &&
+ Preferences::GetBool("mousebutton.5th.enabled", true));
+}
+
+- (void)otherMouseDown:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+ mPerformedDrag = NO;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ if ([self maybeRollup:theEvent] ||
+ !ChildViewMouseTracker::WindowAcceptsEvent([self window], theEvent, self))
+ return;
+
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ int16_t button = nsCocoaUtils::ButtonForEvent(theEvent);
+ if (ShouldDispatchBackForwardCommandForMouseButton(button)) {
+ WidgetCommandEvent appCommandEvent(
+ true,
+ (button == MouseButton::eX2) ? nsGkAtoms::Forward : nsGkAtoms::Back,
+ mGeckoChild);
+ mGeckoChild->DispatchWindowEvent(appCommandEvent);
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseDown, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mButton = button;
+ geckoEvent.mClickCount = [theEvent clickCount];
+
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)otherMouseUp:(NSEvent*)theEvent {
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ int16_t button = nsCocoaUtils::ButtonForEvent(theEvent);
+ if (ShouldDispatchBackForwardCommandForMouseButton(button)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseUp, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ geckoEvent.mButton = button;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+}
+
+- (void)otherMouseDragged:(NSEvent*)theEvent {
+ if (!mGeckoChild) return;
+ if (mTextInputHandler->OnHandleEvent(theEvent)) {
+ return;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eMouseMove, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ int16_t button = nsCocoaUtils::ButtonForEvent(theEvent);
+ geckoEvent.mButton = button;
+
+ // send event into Gecko by going directly to the
+ // the widget.
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+}
+
+- (void)sendWheelStartOrStop:(EventMessage)msg forEvent:(NSEvent*)theEvent {
+ WidgetWheelEvent wheelEvent(true, msg, mGeckoChild);
+ [self convertCocoaMouseWheelEvent:theEvent toGeckoEvent:&wheelEvent];
+ mExpectingWheelStop = (msg == eWheelOperationStart);
+ mGeckoChild->DispatchInputEvent(wheelEvent.AsInputEvent());
+}
+
+- (void)sendWheelCondition:(BOOL)condition
+ first:(EventMessage)first
+ second:(EventMessage)second
+ forEvent:(NSEvent*)theEvent {
+ if (mExpectingWheelStop == condition) {
+ [self sendWheelStartOrStop:first forEvent:theEvent];
+ }
+ [self sendWheelStartOrStop:second forEvent:theEvent];
+}
+
+static int32_t RoundUp(double aDouble) {
+ return aDouble < 0 ? static_cast<int32_t>(floor(aDouble))
+ : static_cast<int32_t>(ceil(aDouble));
+}
+
+static gfx::IntPoint GetIntegerDeltaForEvent(NSEvent* aEvent) {
+ if ([aEvent hasPreciseScrollingDeltas]) {
+ // Pixel scroll events (events with hasPreciseScrollingDeltas == YES)
+ // carry pixel deltas in the scrollingDeltaX/Y fields and line scroll
+ // information in the deltaX/Y fields.
+ // Prior to 10.12, these line scroll fields would be zero for most pixel
+ // scroll events and non-zero for some, whenever at least a full line
+ // worth of pixel scrolling had accumulated. That's the behavior we want.
+ // Starting with 10.12 however, pixel scroll events no longer accumulate
+ // deltaX and deltaY; they just report floating point values for every
+ // single event. So we need to do our own accumulation.
+ return PanGestureInput::GetIntegerDeltaForEvent(
+ [aEvent phase] == NSEventPhaseBegan, [aEvent deltaX], [aEvent deltaY]);
+ }
+
+ // For line scrolls, or pre-10.12, just use the rounded up value of deltaX /
+ // deltaY.
+ return gfx::IntPoint(RoundUp([aEvent deltaX]), RoundUp([aEvent deltaY]));
+}
+
+- (void)scrollWheel:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ ChildViewMouseTracker::MouseScrolled(theEvent);
+
+ if ([self maybeRollup:theEvent]) {
+ return;
+ }
+
+ if (!mGeckoChild) {
+ return;
+ }
+
+ NSEventPhase phase = [theEvent phase];
+ // Fire eWheelOperationStart/End events when 2 fingers touch/release the
+ // touchpad.
+ if (phase & NSEventPhaseMayBegin) {
+ [self sendWheelCondition:YES
+ first:eWheelOperationEnd
+ second:eWheelOperationStart
+ forEvent:theEvent];
+ } else if (phase & (NSEventPhaseEnded | NSEventPhaseCancelled)) {
+ [self sendWheelCondition:NO
+ first:eWheelOperationStart
+ second:eWheelOperationEnd
+ forEvent:theEvent];
+ }
+
+ if (!mGeckoChild) {
+ return;
+ }
+ RefPtr<nsChildView> geckoChildDeathGrip(mGeckoChild);
+
+ NSPoint locationInWindow =
+ nsCocoaUtils::EventLocationForWindow(theEvent, [self window]);
+
+ // Use convertWindowCoordinatesRoundDown when converting the position to
+ // integer screen pixels in order to ensure that coordinates which are just
+ // inside the right / bottom edges of the window don't end up outside of the
+ // window after rounding.
+ ScreenPoint position = ViewAs<ScreenPixel>(
+ [self convertWindowCoordinatesRoundDown:locationInWindow],
+ PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent);
+
+ bool usePreciseDeltas =
+ [theEvent hasPreciseScrollingDeltas] &&
+ Preferences::GetBool("mousewheel.enable_pixel_scrolling", true);
+ bool hasPhaseInformation = nsCocoaUtils::EventHasPhaseInformation(theEvent);
+
+ gfx::IntPoint lineOrPageDelta = -GetIntegerDeltaForEvent(theEvent);
+
+ Modifiers modifiers = nsCocoaUtils::ModifiersForEvent(theEvent);
+
+ TimeStamp eventTimeStamp =
+ nsCocoaUtils::GetEventTimeStamp([theEvent timestamp]);
+
+ ScreenPoint preciseDelta;
+ if (usePreciseDeltas) {
+ CGFloat pixelDeltaX = [theEvent scrollingDeltaX];
+ CGFloat pixelDeltaY = [theEvent scrollingDeltaY];
+ double scale = geckoChildDeathGrip->BackingScaleFactor();
+ preciseDelta = ScreenPoint(-pixelDeltaX * scale, -pixelDeltaY * scale);
+ }
+
+ if (usePreciseDeltas && hasPhaseInformation) {
+ PanGestureInput panEvent = nsCocoaUtils::CreatePanGestureEvent(
+ theEvent, eventTimeStamp, position, preciseDelta, lineOrPageDelta,
+ modifiers);
+
+ geckoChildDeathGrip->DispatchAPZWheelInputEvent(panEvent);
+ } else if (usePreciseDeltas) {
+ // This is on 10.6 or old touchpads that don't have any phase information.
+ ScrollWheelInput wheelEvent(eventTimeStamp, modifiers,
+ ScrollWheelInput::SCROLLMODE_INSTANT,
+ ScrollWheelInput::SCROLLDELTA_PIXEL, position,
+ preciseDelta.x, preciseDelta.y, false,
+ // This parameter is used for wheel delta
+ // adjustment, such as auto-dir scrolling,
+ // but we do't need to do anything special here
+ // since this wheel event is sent to
+ // DispatchAPZWheelInputEvent, which turns this
+ // ScrollWheelInput back into a WidgetWheelEvent
+ // and then it goes through the regular handling
+ // in APZInputBridge. So passing |eNone| won't
+ // pass up the necessary wheel delta adjustment.
+ WheelDeltaAdjustmentStrategy::eNone);
+ wheelEvent.mLineOrPageDeltaX = lineOrPageDelta.x;
+ wheelEvent.mLineOrPageDeltaY = lineOrPageDelta.y;
+ wheelEvent.mIsMomentum = nsCocoaUtils::IsMomentumScrollEvent(theEvent);
+ geckoChildDeathGrip->DispatchAPZWheelInputEvent(wheelEvent);
+ } else {
+ ScrollWheelInput::ScrollMode scrollMode =
+ ScrollWheelInput::SCROLLMODE_INSTANT;
+ if (StaticPrefs::general_smoothScroll() &&
+ StaticPrefs::general_smoothScroll_mouseWheel()) {
+ scrollMode = ScrollWheelInput::SCROLLMODE_SMOOTH;
+ }
+ ScrollWheelInput wheelEvent(eventTimeStamp, modifiers, scrollMode,
+ ScrollWheelInput::SCROLLDELTA_LINE, position,
+ lineOrPageDelta.x, lineOrPageDelta.y, false,
+ // This parameter is used for wheel delta
+ // adjustment, such as auto-dir scrolling,
+ // but we do't need to do anything special here
+ // since this wheel event is sent to
+ // DispatchAPZWheelInputEvent, which turns this
+ // ScrollWheelInput back into a WidgetWheelEvent
+ // and then it goes through the regular handling
+ // in APZInputBridge. So passing |eNone| won't
+ // pass up the necessary wheel delta adjustment.
+ WheelDeltaAdjustmentStrategy::eNone);
+ wheelEvent.mLineOrPageDeltaX = lineOrPageDelta.x;
+ wheelEvent.mLineOrPageDeltaY = lineOrPageDelta.y;
+ geckoChildDeathGrip->DispatchAPZWheelInputEvent(wheelEvent);
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (NSMenu*)menuForEvent:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if (!mGeckoChild) return nil;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ [self maybeRollup:theEvent];
+ if (!mGeckoChild) return nil;
+
+ // Cocoa doesn't always dispatch a mouseDown: for a control-click event,
+ // depends on what we return from menuForEvent:. Gecko always expects one
+ // and expects the mouse down event before the context menu event, so
+ // get that event sent first if this is a left mouse click.
+ if ([theEvent type] == NSEventTypeLeftMouseDown) {
+ [self mouseDown:theEvent];
+ if (!mGeckoChild) return nil;
+ }
+
+ WidgetMouseEvent geckoEvent(true, eContextMenu, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:theEvent toGeckoEvent:&geckoEvent];
+ if (StaticPrefs::dom_event_treat_ctrl_click_as_right_click_disabled() &&
+ [theEvent type] == NSEventTypeLeftMouseDown) {
+ geckoEvent.mContextMenuTrigger = WidgetMouseEvent::eControlClick;
+ geckoEvent.mButton = MouseButton::ePrimary;
+ } else {
+ geckoEvent.mButton = MouseButton::eSecondary;
+ }
+
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+ if (!mGeckoChild) return nil;
+
+ [self maybeInitContextMenuTracking];
+
+ // We never return an actual NSMenu* for the context menu. Gecko might have
+ // responded to the eContextMenu event by putting up a fake context menu.
+ return nil;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nil);
+}
+
+- (void)willOpenMenu:(NSMenu*)aMenu withEvent:(NSEvent*)aEvent {
+ ChildViewMouseTracker::NativeMenuOpened();
+}
+
+- (void)didCloseMenu:(NSMenu*)aMenu withEvent:(NSEvent*)aEvent {
+ ChildViewMouseTracker::NativeMenuClosed();
+}
+
+- (void)convertCocoaMouseWheelEvent:(NSEvent*)aMouseEvent
+ toGeckoEvent:(WidgetWheelEvent*)outWheelEvent {
+ [self convertCocoaMouseEvent:aMouseEvent toGeckoEvent:outWheelEvent];
+
+ bool usePreciseDeltas =
+ [aMouseEvent hasPreciseScrollingDeltas] &&
+ Preferences::GetBool("mousewheel.enable_pixel_scrolling", true);
+
+ outWheelEvent->mDeltaMode = usePreciseDeltas
+ ? dom::WheelEvent_Binding::DOM_DELTA_PIXEL
+ : dom::WheelEvent_Binding::DOM_DELTA_LINE;
+ outWheelEvent->mIsMomentum = nsCocoaUtils::IsMomentumScrollEvent(aMouseEvent);
+}
+
+- (void)convertCocoaMouseEvent:(NSEvent*)aMouseEvent
+ toGeckoEvent:(WidgetInputEvent*)outGeckoEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ NS_ASSERTION(
+ outGeckoEvent,
+ "convertCocoaMouseEvent:toGeckoEvent: requires non-null aoutGeckoEvent");
+ if (!outGeckoEvent) return;
+
+ nsCocoaUtils::InitInputEvent(*outGeckoEvent, aMouseEvent);
+
+ // convert point to view coordinate system
+ NSPoint locationInWindow =
+ nsCocoaUtils::EventLocationForWindow(aMouseEvent, [self window]);
+
+ outGeckoEvent->mRefPoint = [self convertWindowCoordinates:locationInWindow];
+
+ WidgetMouseEventBase* mouseEvent = outGeckoEvent->AsMouseEventBase();
+ mouseEvent->mButtons = 0;
+ NSUInteger mouseButtons = [NSEvent pressedMouseButtons];
+
+ if (mouseButtons & 0x01) {
+ mouseEvent->mButtons |= MouseButtonsFlag::ePrimaryFlag;
+ }
+ if (mouseButtons & 0x02) {
+ mouseEvent->mButtons |= MouseButtonsFlag::eSecondaryFlag;
+ }
+ if (mouseButtons & 0x04) {
+ mouseEvent->mButtons |= MouseButtonsFlag::eMiddleFlag;
+ }
+ if (mouseButtons & 0x08) {
+ mouseEvent->mButtons |= MouseButtonsFlag::e4thFlag;
+ }
+ if (mouseButtons & 0x10) {
+ mouseEvent->mButtons |= MouseButtonsFlag::e5thFlag;
+ }
+
+ switch ([aMouseEvent type]) {
+ case NSEventTypeLeftMouseDown:
+ case NSEventTypeLeftMouseUp:
+ case NSEventTypeLeftMouseDragged:
+ case NSEventTypeRightMouseDown:
+ case NSEventTypeRightMouseUp:
+ case NSEventTypeRightMouseDragged:
+ case NSEventTypeOtherMouseDown:
+ case NSEventTypeOtherMouseUp:
+ case NSEventTypeOtherMouseDragged:
+ case NSEventTypeMouseMoved:
+ if ([aMouseEvent subtype] == NSEventSubtypeTabletPoint) {
+ [self convertCocoaTabletPointerEvent:aMouseEvent
+ toGeckoEvent:mouseEvent->AsMouseEvent()];
+ }
+ break;
+
+ default:
+ // Don't check other NSEvents for pressure.
+ break;
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)convertCocoaTabletPointerEvent:(NSEvent*)aPointerEvent
+ toGeckoEvent:(WidgetMouseEvent*)aOutGeckoEvent {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN
+ if (!aOutGeckoEvent || !sIsTabletPointerActivated) {
+ return;
+ }
+ if ([aPointerEvent type] != NSEventTypeMouseMoved) {
+ aOutGeckoEvent->mPressure = [aPointerEvent pressure];
+ MOZ_ASSERT(aOutGeckoEvent->mPressure >= 0.0 &&
+ aOutGeckoEvent->mPressure <= 1.0);
+ }
+ aOutGeckoEvent->mInputSource = dom::MouseEvent_Binding::MOZ_SOURCE_PEN;
+ aOutGeckoEvent->tiltX = (int32_t)lround([aPointerEvent tilt].x * 90);
+ aOutGeckoEvent->tiltY = (int32_t)lround([aPointerEvent tilt].y * 90);
+ aOutGeckoEvent->tangentialPressure = [aPointerEvent tangentialPressure];
+ // Make sure the twist value is in the range of 0-359.
+ int32_t twist = (int32_t)fmod([aPointerEvent rotation], 360);
+ aOutGeckoEvent->twist = twist >= 0 ? twist : twist + 360;
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)tabletProximity:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN
+ sIsTabletPointerActivated = [theEvent isEnteringProximity];
+ NS_OBJC_END_TRY_IGNORE_BLOCK
+}
+
+#pragma mark -
+// NSTextInputClient implementation
+
+- (NSRange)markedRange {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NS_ENSURE_TRUE(mTextInputHandler, NSMakeRange(NSNotFound, 0));
+ return mTextInputHandler->MarkedRange();
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NSMakeRange(0, 0));
+}
+
+- (NSRange)selectedRange {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NS_ENSURE_TRUE(mTextInputHandler, NSMakeRange(NSNotFound, 0));
+ return mTextInputHandler->SelectedRange();
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NSMakeRange(0, 0));
+}
+
+- (BOOL)drawsVerticallyForCharacterAtIndex:(NSUInteger)charIndex {
+ NS_ENSURE_TRUE(mTextInputHandler, NO);
+ if (charIndex == NSNotFound) {
+ return NO;
+ }
+ return mTextInputHandler->DrawsVerticallyForCharacterAtIndex(charIndex);
+}
+
+- (NSUInteger)characterIndexForPoint:(NSPoint)thePoint {
+ NS_ENSURE_TRUE(mTextInputHandler, 0);
+ return mTextInputHandler->CharacterIndexForPoint(thePoint);
+}
+
+- (NSArray*)validAttributesForMarkedText {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NS_ENSURE_TRUE(mTextInputHandler, [NSArray array]);
+ return mTextInputHandler->GetValidAttributesForMarkedText();
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nil);
+}
+
+- (void)insertText:(id)aString replacementRange:(NSRange)replacementRange {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ NS_ENSURE_TRUE_VOID(mGeckoChild);
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ NSString* str;
+ if ([aString isKindOfClass:[NSAttributedString class]]) {
+ str = [aString string];
+ } else {
+ str = aString;
+ }
+
+ mTextInputHandler->InsertText(str, &replacementRange);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)doCommandBySelector:(SEL)aSelector {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mGeckoChild || !mTextInputHandler) {
+ return;
+ }
+
+ const char* sel = reinterpret_cast<const char*>(aSelector);
+ if (!mTextInputHandler->DoCommandBySelector(sel)) {
+ [super doCommandBySelector:aSelector];
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)unmarkText {
+ NS_ENSURE_TRUE_VOID(mTextInputHandler);
+ mTextInputHandler->CommitIMEComposition();
+}
+
+- (BOOL)hasMarkedText {
+ NS_ENSURE_TRUE(mTextInputHandler, NO);
+ return mTextInputHandler->HasMarkedText();
+}
+
+- (void)setMarkedText:(id)aString
+ selectedRange:(NSRange)selectedRange
+ replacementRange:(NSRange)replacementRange {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ NS_ENSURE_TRUE_VOID(mTextInputHandler);
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ NSAttributedString* attrStr;
+ if ([aString isKindOfClass:[NSAttributedString class]]) {
+ attrStr = static_cast<NSAttributedString*>(aString);
+ } else {
+ attrStr = [[[NSAttributedString alloc] initWithString:aString] autorelease];
+ }
+
+ mTextInputHandler->SetMarkedText(attrStr, selectedRange, &replacementRange);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (NSAttributedString*)attributedSubstringForProposedRange:(NSRange)aRange
+ actualRange:
+ (NSRangePointer)actualRange {
+ NS_ENSURE_TRUE(mTextInputHandler, nil);
+ return mTextInputHandler->GetAttributedSubstringFromRange(aRange,
+ actualRange);
+}
+
+- (NSRect)firstRectForCharacterRange:(NSRange)aRange
+ actualRange:(NSRangePointer)actualRange {
+ NS_ENSURE_TRUE(mTextInputHandler, NSMakeRect(0.0, 0.0, 0.0, 0.0));
+ return mTextInputHandler->FirstRectForCharacterRange(aRange, actualRange);
+}
+
+- (void)quickLookWithEvent:(NSEvent*)event {
+ // Show dictionary by current point
+ WidgetContentCommandEvent contentCommandEvent(
+ true, eContentCommandLookUpDictionary, mGeckoChild);
+ NSPoint point = [self convertPoint:[event locationInWindow] fromView:nil];
+ contentCommandEvent.mRefPoint = mGeckoChild->CocoaPointsToDevPixels(point);
+ mGeckoChild->DispatchWindowEvent(contentCommandEvent);
+ // The widget might have been destroyed.
+}
+
+- (NSInteger)windowLevel {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NS_ENSURE_TRUE(mTextInputHandler, [[self window] level]);
+ return mTextInputHandler->GetWindowLevel();
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NSNormalWindowLevel);
+}
+
+#pragma mark -
+
+// This is a private API that Cocoa uses.
+// Cocoa will call this after the menu system returns "NO" for
+// "performKeyEquivalent:". We want all they key events we can get so just
+// return YES. In particular, this fixes ctrl-tab - we don't get a "keyDown:"
+// call for that without this.
+- (BOOL)_wantsKeyDownForEvent:(NSEvent*)event {
+ return YES;
+}
+
+- (NSEvent*)lastKeyDownEvent {
+ return mLastKeyDownEvent;
+}
+
+- (void)keyDown:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ [mLastKeyDownEvent release];
+ mLastKeyDownEvent = [theEvent retain];
+
+ // Weird things can happen on keyboard input if the key window isn't in the
+ // current space. For example see bug 1056251. To get around this, always
+ // make sure that, if our window is key, it's also made frontmost. Doing
+ // this automatically switches to whatever space our window is in. Safari
+ // does something similar. Our window should normally always be key --
+ // otherwise why is the OS sending us a key down event? But it's just
+ // possible we're in Gecko's hidden window, so we check first.
+ NSWindow* viewWindow = [self window];
+ if (viewWindow && [viewWindow isKeyWindow]) {
+ [viewWindow orderWindow:NSWindowAbove relativeTo:0];
+ }
+
+#if !defined(RELEASE_OR_BETA) || defined(DEBUG)
+ if (!Preferences::GetBool("intl.allow-insecure-text-input", false) &&
+ mGeckoChild && mTextInputHandler && mTextInputHandler->IsFocused()) {
+ NSWindow* window = [self window];
+ NSString* info = [NSString
+ stringWithFormat:@"\nview [%@], window [%@], window is key %i, is "
+ @"fullscreen %i, app is active %i",
+ self, window, [window isKeyWindow],
+ ([window styleMask] & NSWindowStyleMaskFullScreen) !=
+ 0,
+ [NSApp isActive]];
+ nsAutoCString additionalInfo([info UTF8String]);
+
+ if (mGeckoChild->GetInputContext().IsPasswordEditor() &&
+ !TextInputHandler::IsSecureEventInputEnabled()) {
+# define CRASH_MESSAGE \
+ "A password editor has focus, but not in secure input mode"
+
+ CrashReporter::AppendAppNotesToCrashReport(
+ "\nBug 893973: "_ns + nsLiteralCString(CRASH_MESSAGE));
+ CrashReporter::AppendAppNotesToCrashReport(additionalInfo);
+
+ MOZ_CRASH(CRASH_MESSAGE);
+# undef CRASH_MESSAGE
+ } else if (!mGeckoChild->GetInputContext().IsPasswordEditor() &&
+ TextInputHandler::IsSecureEventInputEnabled()) {
+# define CRASH_MESSAGE \
+ "A non-password editor has focus, but in secure input mode"
+
+ CrashReporter::AppendAppNotesToCrashReport(
+ "\nBug 893973: "_ns + nsLiteralCString(CRASH_MESSAGE));
+ CrashReporter::AppendAppNotesToCrashReport(additionalInfo);
+
+ MOZ_CRASH(CRASH_MESSAGE);
+# undef CRASH_MESSAGE
+ }
+ }
+#endif // #if !defined(RELEASE_OR_BETA) || defined(DEBUG)
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ if (mGeckoChild) {
+ if (mTextInputHandler) {
+ sUniqueKeyEventId++;
+ NSMutableDictionary* nativeKeyEventsMap = [ChildView sNativeKeyEventsMap];
+ [nativeKeyEventsMap setObject:theEvent forKey:@(sUniqueKeyEventId)];
+ // Purge old native events, in case we're still holding on to them. We
+ // keep at most 10 references to 10 different native events.
+ [nativeKeyEventsMap removeObjectForKey:@(sUniqueKeyEventId - 10)];
+ mTextInputHandler->HandleKeyDownEvent(theEvent, sUniqueKeyEventId);
+ } else {
+ // There was no text input handler. Offer the event to the native menu
+ // system to check if there are any registered custom shortcuts for this
+ // event.
+ mGeckoChild->SendEventToNativeMenuSystem(theEvent);
+ }
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)keyUp:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ NS_ENSURE_TRUE(mGeckoChild, );
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ mTextInputHandler->HandleKeyUpEvent(theEvent);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)insertNewline:(id)sender {
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::InsertParagraph);
+ }
+}
+
+- (void)insertLineBreak:(id)sender {
+ // Ctrl + Enter in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::InsertLineBreak);
+ }
+}
+
+- (void)deleteBackward:(id)sender {
+ // Backspace in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::DeleteCharBackward);
+ }
+}
+
+- (void)deleteBackwardByDecomposingPreviousCharacter:(id)sender {
+ // Ctrl + Backspace in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::DeleteCharBackward);
+ }
+}
+
+- (void)deleteWordBackward:(id)sender {
+ // Alt + Backspace in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::DeleteWordBackward);
+ }
+}
+
+- (void)deleteToBeginningOfBackward:(id)sender {
+ // Command + Backspace in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::DeleteToBeginningOfLine);
+ }
+}
+
+- (void)deleteForward:(id)sender {
+ // Delete in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::DeleteCharForward);
+ }
+}
+
+- (void)deleteWordForward:(id)sender {
+ // Alt + Delete in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::DeleteWordForward);
+ }
+}
+
+- (void)insertTab:(id)sender {
+ // Tab in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::InsertTab);
+ }
+}
+
+- (void)insertBacktab:(id)sender {
+ // Shift + Tab in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::InsertBacktab);
+ }
+}
+
+- (void)moveRight:(id)sender {
+ // RightArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::CharNext);
+ }
+}
+
+- (void)moveRightAndModifySelection:(id)sender {
+ // Shift + RightArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectCharNext);
+ }
+}
+
+- (void)moveWordRight:(id)sender {
+ // Alt + RightArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::WordNext);
+ }
+}
+
+- (void)moveWordRightAndModifySelection:(id)sender {
+ // Alt + Shift + RightArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectWordNext);
+ }
+}
+
+- (void)moveToRightEndOfLine:(id)sender {
+ // Command + RightArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::EndLine);
+ }
+}
+
+- (void)moveToRightEndOfLineAndModifySelection:(id)sender {
+ // Command + Shift + RightArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectEndLine);
+ }
+}
+
+- (void)moveLeft:(id)sender {
+ // LeftArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::CharPrevious);
+ }
+}
+
+- (void)moveLeftAndModifySelection:(id)sender {
+ // Shift + LeftArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectCharPrevious);
+ }
+}
+
+- (void)moveWordLeft:(id)sender {
+ // Alt + LeftArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::WordPrevious);
+ }
+}
+
+- (void)moveWordLeftAndModifySelection:(id)sender {
+ // Alt + Shift + LeftArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectWordPrevious);
+ }
+}
+
+- (void)moveToLeftEndOfLine:(id)sender {
+ // Command + LeftArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::BeginLine);
+ }
+}
+
+- (void)moveToLeftEndOfLineAndModifySelection:(id)sender {
+ // Command + Shift + LeftArrow in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectBeginLine);
+ }
+}
+
+- (void)moveUp:(id)sender {
+ // ArrowUp in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::LinePrevious);
+ }
+}
+
+- (void)moveUpAndModifySelection:(id)sender {
+ // Shift + ArrowUp in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectLinePrevious);
+ }
+}
+
+- (void)moveToBeginningOfDocument:(id)sender {
+ // Command + ArrowUp in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::MoveTop);
+ }
+}
+
+- (void)moveToBeginningOfDocumentAndModifySelection:(id)sender {
+ // Command + Shift + ArrowUp or Shift + Home in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectTop);
+ }
+}
+
+- (void)moveDown:(id)sender {
+ // ArrowDown in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::LineNext);
+ }
+}
+
+- (void)moveDownAndModifySelection:(id)sender {
+ // Shift + ArrowDown in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectLineNext);
+ }
+}
+
+- (void)moveToEndOfDocument:(id)sender {
+ // Command + ArrowDown in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::MoveBottom);
+ }
+}
+
+- (void)moveToEndOfDocumentAndModifySelection:(id)sender {
+ // Command + Shift + ArrowDown or Shift + End in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectBottom);
+ }
+}
+
+- (void)scrollPageUp:(id)sender {
+ // PageUp in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::ScrollPageUp);
+ }
+}
+
+- (void)pageUpAndModifySelection:(id)sender {
+ // Shift + PageUp in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectPageUp);
+ }
+}
+
+- (void)scrollPageDown:(id)sender {
+ // PageDown in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::ScrollPageDown);
+ }
+}
+
+- (void)pageDownAndModifySelection:(id)sender {
+ // Shift + PageDown in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::SelectPageDown);
+ }
+}
+
+- (void)scrollToEndOfDocument:(id)sender {
+ // End in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::ScrollBottom);
+ }
+}
+
+- (void)scrollToBeginningOfDocument:(id)sender {
+ // Home in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::ScrollTop);
+ }
+}
+
+// XXX Don't decleare nor implement calcelOperation: because it
+// causes not calling keyDown: for Command + Period.
+// We need to handle it from doCommandBySelector:.
+
+- (void)complete:(id)sender {
+ // Alt + Escape or Alt + Shift + Escape in the default settings.
+ if (mTextInputHandler) {
+ mTextInputHandler->HandleCommand(Command::Complete);
+ }
+}
+
+- (void)flagsChanged:(NSEvent*)theEvent {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ NS_ENSURE_TRUE(mGeckoChild, );
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ mTextInputHandler->HandleFlagsChanged(theEvent);
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (BOOL)isFirstResponder {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ NSResponder* resp = [[self window] firstResponder];
+ return (resp == (NSResponder*)self);
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NO);
+}
+
+- (BOOL)isDragInProgress {
+ if (!mDragService) return NO;
+
+ nsCOMPtr<nsIDragSession> dragSession;
+ mDragService->GetCurrentSession(getter_AddRefs(dragSession));
+ return dragSession != nullptr;
+}
+
+- (BOOL)inactiveWindowAcceptsMouseEvent:(NSEvent*)aEvent {
+ // If we're being destroyed assume the default -- return YES.
+ if (!mGeckoChild) return YES;
+
+ WidgetMouseEvent geckoEvent(true, eMouseActivate, mGeckoChild,
+ WidgetMouseEvent::eReal);
+ [self convertCocoaMouseEvent:aEvent toGeckoEvent:&geckoEvent];
+ return (mGeckoChild->DispatchInputEvent(&geckoEvent).mContentStatus !=
+ nsEventStatus_eConsumeNoDefault);
+}
+
+// We must always call through to our superclass, even when mGeckoChild is
+// nil -- otherwise the keyboard focus can end up in the wrong NSView.
+- (BOOL)becomeFirstResponder {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ return [super becomeFirstResponder];
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(YES);
+}
+
+- (void)viewsWindowDidBecomeKey {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ if (!mGeckoChild) return;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ // check to see if the window implements the mozWindow protocol. This
+ // allows embedders to avoid re-entrant calls to -makeKeyAndOrderFront,
+ // which can happen because these activate calls propagate out
+ // to the embedder via nsIEmbeddingSiteWindow::SetFocus().
+ BOOL isMozWindow =
+ [[self window] respondsToSelector:@selector(setSuppressMakeKeyFront:)];
+ if (isMozWindow) [[self window] setSuppressMakeKeyFront:YES];
+
+ nsIWidgetListener* listener = mGeckoChild->GetWidgetListener();
+ if (listener) listener->WindowActivated();
+
+ if (isMozWindow) [[self window] setSuppressMakeKeyFront:NO];
+
+ if (mGeckoChild->GetInputContext().IsPasswordEditor()) {
+ TextInputHandler::EnableSecureEventInput();
+ } else {
+ TextInputHandler::EnsureSecureEventInputDisabled();
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+- (void)viewsWindowDidResignKey {
+ if (!mGeckoChild) return;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ nsIWidgetListener* listener = mGeckoChild->GetWidgetListener();
+ if (listener) listener->WindowDeactivated();
+
+ TextInputHandler::EnsureSecureEventInputDisabled();
+}
+
+// If the call to removeFromSuperview isn't delayed from nsChildView::
+// TearDownView(), the NSView hierarchy might get changed during calls to
+// [ChildView drawRect:], which leads to "beyond bounds" exceptions in
+// NSCFArray. For more info see bmo bug 373122. Apple's docs claim that
+// removeFromSuperviewWithoutNeedingDisplay "can be safely invoked during
+// display" (whatever "display" means). But it's _not_ true that it can be
+// safely invoked during calls to [NSView drawRect:]. We use
+// removeFromSuperview here because there's no longer any danger of being
+// "invoked during display", and because doing do clears up bmo bug 384343.
+- (void)delayedTearDown {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ [self removeFromSuperview];
+ [self release];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+#pragma mark -
+
+// drag'n'drop stuff
+#define kDragServiceContractID "@mozilla.org/widget/dragservice;1"
+
+- (NSDragOperation)dragOperationFromDragAction:(int32_t)aDragAction {
+ if (nsIDragService::DRAGDROP_ACTION_LINK & aDragAction)
+ return NSDragOperationLink;
+ if (nsIDragService::DRAGDROP_ACTION_COPY & aDragAction)
+ return NSDragOperationCopy;
+ if (nsIDragService::DRAGDROP_ACTION_MOVE & aDragAction)
+ return NSDragOperationGeneric;
+ return NSDragOperationNone;
+}
+
+- (LayoutDeviceIntPoint)convertWindowCoordinates:(NSPoint)aPoint {
+ if (!mGeckoChild) {
+ return LayoutDeviceIntPoint(0, 0);
+ }
+
+ NSPoint localPoint = [self convertPoint:aPoint fromView:nil];
+ return mGeckoChild->CocoaPointsToDevPixels(localPoint);
+}
+
+- (LayoutDeviceIntPoint)convertWindowCoordinatesRoundDown:(NSPoint)aPoint {
+ if (!mGeckoChild) {
+ return LayoutDeviceIntPoint(0, 0);
+ }
+
+ NSPoint localPoint = [self convertPoint:aPoint fromView:nil];
+ return mGeckoChild->CocoaPointsToDevPixelsRoundDown(localPoint);
+}
+
+// This is a utility function used by NSView drag event methods
+// to send events. It contains all of the logic needed for Gecko
+// dragging to work. Returns the appropriate cocoa drag operation code.
+- (NSDragOperation)doDragAction:(EventMessage)aMessage sender:(id)aSender {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if (!mGeckoChild) return NSDragOperationNone;
+
+ MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView doDragAction: entered\n"));
+
+ if (!mDragService) {
+ CallGetService(kDragServiceContractID, &mDragService);
+ NS_ASSERTION(mDragService, "Couldn't get a drag service - big problem!");
+ if (!mDragService) return NSDragOperationNone;
+ }
+
+ if (aMessage == eDragEnter) {
+ mDragService->StartDragSession();
+ }
+
+ nsCOMPtr<nsIDragSession> dragSession;
+ mDragService->GetCurrentSession(getter_AddRefs(dragSession));
+ if (dragSession) {
+ if (aMessage == eDragOver) {
+ // fire the drag event at the source. Just ignore whether it was
+ // cancelled or not as there isn't actually a means to stop the drag
+ nsCOMPtr<nsIDragService> dragService = mDragService;
+ dragService->FireDragEventAtSource(
+ eDrag, nsCocoaUtils::ModifiersForEvent([NSApp currentEvent]));
+ dragSession->SetCanDrop(false);
+ } else if (aMessage == eDrop) {
+ // We make the assumption that the dragOver handlers have correctly set
+ // the |canDrop| property of the Drag Session.
+ bool canDrop = false;
+ if (!NS_SUCCEEDED(dragSession->GetCanDrop(&canDrop)) || !canDrop) {
+ [self doDragAction:eDragExit sender:aSender];
+
+ nsCOMPtr<nsINode> sourceNode;
+ dragSession->GetSourceNode(getter_AddRefs(sourceNode));
+ if (!sourceNode) {
+ nsCOMPtr<nsIDragService> dragService = mDragService;
+ dragService->EndDragSession(
+ false, nsCocoaUtils::ModifiersForEvent([NSApp currentEvent]));
+ }
+ return NSDragOperationNone;
+ }
+ }
+
+ unsigned int modifierFlags = [[NSApp currentEvent] modifierFlags];
+ uint32_t action = nsIDragService::DRAGDROP_ACTION_MOVE;
+ // force copy = option, alias = cmd-option, default is move
+ if (modifierFlags & NSEventModifierFlagOption) {
+ if (modifierFlags & NSEventModifierFlagCommand)
+ action = nsIDragService::DRAGDROP_ACTION_LINK;
+ else
+ action = nsIDragService::DRAGDROP_ACTION_COPY;
+ }
+ dragSession->SetDragAction(action);
+ }
+
+ // set up gecko event
+ WidgetDragEvent geckoEvent(true, aMessage, mGeckoChild);
+ nsCocoaUtils::InitInputEvent(geckoEvent, [NSApp currentEvent]);
+
+ // Use our own coordinates in the gecko event.
+ // Convert event from gecko global coords to gecko view coords.
+ NSPoint draggingLoc = [aSender draggingLocation];
+
+ geckoEvent.mRefPoint = [self convertWindowCoordinates:draggingLoc];
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ mGeckoChild->DispatchInputEvent(&geckoEvent);
+ if (!mGeckoChild) return NSDragOperationNone;
+
+ if (dragSession) {
+ switch (aMessage) {
+ case eDragEnter:
+ case eDragOver: {
+ uint32_t dragAction;
+ dragSession->GetDragAction(&dragAction);
+
+ // If TakeChildProcessDragAction returns something other than
+ // DRAGDROP_ACTION_UNINITIALIZED, it means that the last event was sent
+ // to the child process and this event is also being sent to the child
+ // process. In this case, use the last event's action instead.
+ nsDragService* dragService = static_cast<nsDragService*>(mDragService);
+ int32_t childDragAction = dragService->TakeChildProcessDragAction();
+ if (childDragAction != nsIDragService::DRAGDROP_ACTION_UNINITIALIZED) {
+ dragAction = childDragAction;
+ }
+
+ return [self dragOperationFromDragAction:dragAction];
+ }
+ case eDragExit:
+ case eDrop: {
+ nsCOMPtr<nsINode> sourceNode;
+ dragSession->GetSourceNode(getter_AddRefs(sourceNode));
+ if (!sourceNode) {
+ // We're leaving a window while doing a drag that was
+ // initiated in a different app. End the drag session,
+ // since we're done with it for now (until the user
+ // drags back into mozilla).
+ nsCOMPtr<nsIDragService> dragService = mDragService;
+ dragService->EndDragSession(
+ false, nsCocoaUtils::ModifiersForEvent([NSApp currentEvent]));
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ }
+
+ return NSDragOperationGeneric;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NSDragOperationNone);
+}
+
+// NSDraggingDestination
+- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView draggingEntered: entered\n"));
+
+ // there should never be a globalDragPboard when "draggingEntered:" is
+ // called, but just in case we'll take care of it here.
+ [globalDragPboard release];
+
+ // Set the global drag pasteboard that will be used for this drag session.
+ // This will be set back to nil when the drag session ends (mouse exits
+ // the view or a drop happens within the view).
+ globalDragPboard = [[sender draggingPasteboard] retain];
+
+ return [self doDragAction:eDragEnter sender:sender];
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NSDragOperationNone);
+}
+
+// NSDraggingDestination
+- (NSDragOperation)draggingUpdated:(id<NSDraggingInfo>)sender {
+ MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView draggingUpdated: entered\n"));
+ return [self doDragAction:eDragOver sender:sender];
+}
+
+// NSDraggingDestination
+- (void)draggingExited:(id<NSDraggingInfo>)sender {
+ MOZ_LOG(sCocoaLog, LogLevel::Info, ("ChildView draggingExited: entered\n"));
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ [self doDragAction:eDragExit sender:sender];
+ NS_IF_RELEASE(mDragService);
+}
+
+// NSDraggingDestination
+- (BOOL)performDragOperation:(id<NSDraggingInfo>)sender {
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ BOOL handled = [self doDragAction:eDrop sender:sender] != NSDragOperationNone;
+ NS_IF_RELEASE(mDragService);
+ return handled;
+}
+
+// NSDraggingSource
+// This is just implemented so we comply with the NSDraggingSource protocol.
+- (NSDragOperation)draggingSession:(NSDraggingSession*)session
+ sourceOperationMaskForDraggingContext:(NSDraggingContext)context {
+ return UINT_MAX;
+}
+
+// NSDraggingSource
+- (BOOL)ignoreModifierKeysForDraggingSession:(NSDraggingSession*)session {
+ return YES;
+}
+
+// NSDraggingSource
+- (void)draggingSession:(NSDraggingSession*)aSession
+ endedAtPoint:(NSPoint)aPoint
+ operation:(NSDragOperation)aOperation {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+#ifdef NIGHTLY_BUILD
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+#endif
+
+ gDraggedTransferables = nullptr;
+
+ NSEvent* currentEvent = [NSApp currentEvent];
+ gUserCancelledDrag = ([currentEvent type] == NSEventTypeKeyDown &&
+ [currentEvent keyCode] == kVK_Escape);
+
+ if (!mDragService) {
+ CallGetService(kDragServiceContractID, &mDragService);
+ NS_ASSERTION(mDragService, "Couldn't get a drag service - big problem!");
+ }
+
+ if (mDragService) {
+ RefPtr<nsDragService> dragService =
+ static_cast<nsDragService*>(mDragService);
+
+ // Set the dragend point from the current mouse location
+ // FIXME(emilio): Weird that we wouldn't use aPoint instead? Seems to work
+ // locally as well...
+ // NSPoint pnt = aPoint;
+ NSPoint pnt = [NSEvent mouseLocation];
+ NSPoint locationInWindow =
+ nsCocoaUtils::ConvertPointFromScreen([self window], pnt);
+ FlipCocoaScreenCoordinate(pnt);
+ dragService->SetDragEndPoint(
+ [self convertWindowCoordinates:locationInWindow]);
+
+ // XXX: dropEffect should be updated per |aOperation|.
+ // As things stand though, |aOperation| isn't well handled within "our"
+ // events, that is, when the drop happens within the window: it is set
+ // either to NSDragOperationGeneric or to NSDragOperationNone.
+ // For that reason, it's not yet possible to override dropEffect per the
+ // given OS value, and it's also unclear what's the correct dropEffect
+ // value for NSDragOperationGeneric that is passed by other applications.
+ // All that said, NSDragOperationNone is still reliable.
+ if (aOperation == NSDragOperationNone) {
+ RefPtr<dom::DataTransfer> dataTransfer = dragService->GetDataTransfer();
+ if (dataTransfer) {
+ dataTransfer->SetDropEffectInt(nsIDragService::DRAGDROP_ACTION_NONE);
+ }
+ }
+
+ dragService->EndDragSession(true,
+ nsCocoaUtils::ModifiersForEvent(currentEvent));
+ NS_RELEASE(mDragService);
+ }
+
+ [globalDragPboard release];
+ globalDragPboard = nil;
+ [gLastDragMouseDownEvent release];
+ gLastDragMouseDownEvent = nil;
+ mPerformedDrag = YES;
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// NSDraggingSource
+- (void)draggingSession:(NSDraggingSession*)aSession
+ movedToPoint:(NSPoint)aPoint {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ // Get the drag service if it isn't already cached. The drag service
+ // isn't cached when dragging over a different application.
+ nsCOMPtr<nsIDragService> dragService = mDragService;
+ if (!dragService) {
+ dragService = do_GetService(kDragServiceContractID);
+ }
+
+ if (dragService) {
+ nsDragService* ds = static_cast<nsDragService*>(dragService.get());
+ ds->DragMovedWithView(aSession, aPoint);
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// NSDraggingSource
+- (void)draggingSession:(NSDraggingSession*)aSession
+ willBeginAtPoint:(NSPoint)aPoint {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+ // there should never be a globalDragPboard when "willBeginAtPoint:" is
+ // called, but just in case we'll take care of it here.
+ [globalDragPboard release];
+
+ // Set the global drag pasteboard that will be used for this drag session.
+ // This will be set back to nil when the drag session ends (mouse exits
+ // the view or a drop happens within the view).
+ globalDragPboard = [[aSession draggingPasteboard] retain];
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+// Get the paste location from the low level pasteboard.
+static CFTypeRefPtr<CFURLRef> GetPasteLocation(NSPasteboard* aPasteboard) {
+ PasteboardRef pboardRef = nullptr;
+ PasteboardCreate((CFStringRef)[aPasteboard name], &pboardRef);
+ if (!pboardRef) {
+ return nullptr;
+ }
+
+ auto pasteBoard = CFTypeRefPtr<PasteboardRef>::WrapUnderCreateRule(pboardRef);
+ PasteboardSynchronize(pasteBoard.get());
+
+ CFURLRef urlRef = nullptr;
+ PasteboardCopyPasteLocation(pasteBoard.get(), &urlRef);
+ return CFTypeRefPtr<CFURLRef>::WrapUnderCreateRule(urlRef);
+}
+
+// NSPasteboardItemDataProvider
+- (void)pasteboard:(NSPasteboard*)aPasteboard
+ item:(NSPasteboardItem*)aItem
+ provideDataForType:(NSString*)aType {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
+
+#ifdef NIGHTLY_BUILD
+ MOZ_RELEASE_ASSERT(NS_IsMainThread());
+#endif
+
+ if (!gDraggedTransferables) {
+ return;
+ }
+
+ uint32_t count = 0;
+ gDraggedTransferables->GetLength(&count);
+
+ for (uint32_t j = 0; j < count; j++) {
+ nsCOMPtr<nsITransferable> currentTransferable =
+ do_QueryElementAt(gDraggedTransferables, j);
+ if (!currentTransferable) {
+ return;
+ }
+
+ // Transform the transferable to an NSDictionary.
+ NSDictionary* pasteboardOutputDict =
+ nsClipboard::PasteboardDictFromTransferable(currentTransferable);
+ if (!pasteboardOutputDict) {
+ return;
+ }
+
+ // Write everything out to the pasteboard.
+ unsigned int typeCount = [pasteboardOutputDict count];
+ NSMutableArray* types = [NSMutableArray arrayWithCapacity:typeCount + 1];
+ [types addObjectsFromArray:[pasteboardOutputDict allKeys]];
+ [types addObject:[UTIHelper stringFromPboardType:kMozWildcardPboardType]];
+ for (unsigned int k = 0; k < typeCount; k++) {
+ NSString* curType = [types objectAtIndex:k];
+ if ([curType isEqualToString:[UTIHelper stringFromPboardType:
+ NSPasteboardTypeString]] ||
+ [curType
+ isEqualToString:[UTIHelper
+ stringFromPboardType:kPublicUrlPboardType]] ||
+ [curType isEqualToString:[UTIHelper stringFromPboardType:
+ kPublicUrlNamePboardType]] ||
+ [curType
+ isEqualToString:[UTIHelper
+ stringFromPboardType:(NSString*)
+ kUTTypeFileURL]]) {
+ [aPasteboard setString:[pasteboardOutputDict valueForKey:curType]
+ forType:curType];
+ } else if ([curType isEqualToString:[UTIHelper
+ stringFromPboardType:
+ kUrlsWithTitlesPboardType]]) {
+ [aPasteboard setPropertyList:[pasteboardOutputDict valueForKey:curType]
+ forType:curType];
+ } else if ([curType
+ isEqualToString:[UTIHelper stringFromPboardType:
+ NSPasteboardTypeHTML]]) {
+ [aPasteboard setString:(nsClipboard::WrapHtmlForSystemPasteboard(
+ [pasteboardOutputDict valueForKey:curType]))
+ forType:curType];
+ } else if ([curType
+ isEqualToString:[UTIHelper stringFromPboardType:
+ NSPasteboardTypeTIFF]] ||
+ [curType isEqualToString:[UTIHelper
+ stringFromPboardType:
+ kMozCustomTypesPboardType]]) {
+ [aPasteboard setData:[pasteboardOutputDict valueForKey:curType]
+ forType:curType];
+ } else if ([curType
+ isEqualToString:[UTIHelper stringFromPboardType:
+ kMozFileUrlsPboardType]]) {
+ [aPasteboard writeObjects:[pasteboardOutputDict valueForKey:curType]];
+ } else if ([curType
+ isEqualToString:
+ [UTIHelper
+ stringFromPboardType:
+ (NSString*)kPasteboardTypeFileURLPromise]]) {
+ nsCOMPtr<nsIFile> targFile;
+ NS_NewLocalFile(u""_ns, true, getter_AddRefs(targFile));
+ nsCOMPtr<nsILocalFileMac> macLocalFile = do_QueryInterface(targFile);
+ if (!macLocalFile) {
+ NS_ERROR("No Mac local file");
+ continue;
+ }
+
+ CFTypeRefPtr<CFURLRef> url = GetPasteLocation(aPasteboard);
+ if (!url) {
+ continue;
+ }
+
+ if (!NS_SUCCEEDED(macLocalFile->InitWithCFURL(url.get()))) {
+ NS_ERROR("failed InitWithCFURL");
+ continue;
+ }
+
+ if (!gDraggedTransferables) {
+ continue;
+ }
+
+ uint32_t transferableCount;
+ nsresult rv = gDraggedTransferables->GetLength(&transferableCount);
+ if (NS_FAILED(rv)) {
+ continue;
+ }
+
+ for (uint32_t i = 0; i < transferableCount; i++) {
+ nsCOMPtr<nsITransferable> item =
+ do_QueryElementAt(gDraggedTransferables, i);
+ if (!item) {
+ NS_ERROR("no transferable");
+ continue;
+ }
+
+ item->SetTransferData(kFilePromiseDirectoryMime, macLocalFile);
+
+ // Now request the kFilePromiseMime data, which will invoke the data
+ // provider. If successful, the file will have been created.
+ nsCOMPtr<nsISupports> fileDataPrimitive;
+ Unused << item->GetTransferData(kFilePromiseMime,
+ getter_AddRefs(fileDataPrimitive));
+ }
+
+ [aPasteboard setPropertyList:[pasteboardOutputDict valueForKey:curType]
+ forType:curType];
+ }
+ }
+ }
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK;
+}
+
+#pragma mark -
+
+// Support for the "Services" menu. We currently only support sending strings
+// and HTML to system services.
+// This method can be called on any thread (see bug 1751687). We can only
+// usefully handle it on the main thread.
+- (id)validRequestorForSendType:(NSString*)sendType
+ returnType:(NSString*)returnType {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if (!NS_IsMainThread()) {
+ // We don't have any thread-safe ways of checking whether we can send
+ // or receive content. Just say no. In normal cases, we expect this
+ // method to be called on the main thread.
+ return [super validRequestorForSendType:sendType returnType:returnType];
+ }
+
+ // sendType contains the type of data that the service would like this
+ // application to send to it. sendType is nil if the service is not
+ // requesting any data.
+ //
+ // returnType contains the type of data the the service would like to
+ // return to this application (e.g., to overwrite the selection).
+ // returnType is nil if the service will not return any data.
+ //
+ // The following condition thus triggers when the service expects a string
+ // or HTML from us or no data at all AND when the service will either not
+ // send back any data to us or will send a string or HTML back to us.
+
+ id result = nil;
+
+ NSString* stringType =
+ [UTIHelper stringFromPboardType:NSPasteboardTypeString];
+ NSString* htmlType = [UTIHelper stringFromPboardType:NSPasteboardTypeHTML];
+ if ((!sendType || [sendType isEqualToString:stringType] ||
+ [sendType isEqualToString:htmlType]) &&
+ (!returnType || [returnType isEqualToString:stringType] ||
+ [returnType isEqualToString:htmlType])) {
+ if (mGeckoChild) {
+ // Assume that this object will be able to handle this request.
+ result = self;
+
+ // Keep the ChildView alive during this operation.
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ if (sendType) {
+ // Determine if there is a current selection (chrome/content).
+ if (!nsClipboard::sSelectionCache) {
+ result = nil;
+ }
+ }
+
+ // Determine if we can paste (if receiving data from the service).
+ if (mGeckoChild && returnType) {
+ WidgetContentCommandEvent command(
+ true, eContentCommandPasteTransferable, mGeckoChild, true);
+ // This might possibly destroy our widget (and null out mGeckoChild).
+ mGeckoChild->DispatchWindowEvent(command);
+ if (!mGeckoChild || !command.mSucceeded || !command.mIsEnabled)
+ result = nil;
+ }
+ }
+ }
+
+ // Give the superclass a chance if this object will not handle this request.
+ if (!result)
+ result = [super validRequestorForSendType:sendType returnType:returnType];
+
+ return result;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nil);
+}
+
+- (BOOL)writeSelectionToPasteboard:(NSPasteboard*)pboard types:(NSArray*)types {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+
+ // Make sure that the service will accept strings or HTML.
+ if (![types
+ containsObject:[UTIHelper stringFromPboardType:NSStringPboardType]] &&
+ ![types
+ containsObject:[UTIHelper
+ stringFromPboardType:NSPasteboardTypeString]] &&
+ ![types containsObject:[UTIHelper
+ stringFromPboardType:NSPasteboardTypeHTML]]) {
+ return NO;
+ }
+
+ // Bail out if there is no Gecko object.
+ if (!mGeckoChild) return NO;
+
+ // Transform the transferable to an NSDictionary.
+ NSDictionary* pasteboardOutputDict = nullptr;
+
+ pasteboardOutputDict =
+ nsClipboard::PasteboardDictFromTransferable(nsClipboard::sSelectionCache);
+
+ if (!pasteboardOutputDict) return NO;
+
+ // Declare the pasteboard types.
+ unsigned int typeCount = [pasteboardOutputDict count];
+ NSMutableArray* declaredTypes = [NSMutableArray arrayWithCapacity:typeCount];
+ [declaredTypes addObjectsFromArray:[pasteboardOutputDict allKeys]];
+ [pboard declareTypes:declaredTypes owner:nil];
+
+ // Write the data to the pasteboard.
+ for (unsigned int i = 0; i < typeCount; i++) {
+ NSString* currentKey = [declaredTypes objectAtIndex:i];
+ id currentValue = [pasteboardOutputDict valueForKey:currentKey];
+
+ if ([currentKey
+ isEqualToString:[UTIHelper
+ stringFromPboardType:NSPasteboardTypeString]] ||
+ [currentKey
+ isEqualToString:[UTIHelper
+ stringFromPboardType:kPublicUrlPboardType]] ||
+ [currentKey isEqualToString:[UTIHelper stringFromPboardType:
+ kPublicUrlNamePboardType]]) {
+ [pboard setString:currentValue forType:currentKey];
+ } else if ([currentKey
+ isEqualToString:
+ [UTIHelper stringFromPboardType:NSPasteboardTypeHTML]]) {
+ [pboard setString:(nsClipboard::WrapHtmlForSystemPasteboard(currentValue))
+ forType:currentKey];
+ } else if ([currentKey
+ isEqualToString:
+ [UTIHelper stringFromPboardType:NSPasteboardTypeTIFF]]) {
+ [pboard setData:currentValue forType:currentKey];
+ } else if ([currentKey
+ isEqualToString:
+ [UTIHelper
+ stringFromPboardType:
+ (NSString*)kPasteboardTypeFileURLPromise]] ||
+ [currentKey
+ isEqualToString:[UTIHelper stringFromPboardType:
+ kUrlsWithTitlesPboardType]]) {
+ [pboard setPropertyList:currentValue forType:currentKey];
+ }
+ }
+ return YES;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NO);
+}
+
+// Called if the service wants us to replace the current selection.
+- (BOOL)readSelectionFromPasteboard:(NSPasteboard*)pboard {
+ nsresult rv;
+ nsCOMPtr<nsITransferable> trans =
+ do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
+ if (NS_FAILED(rv)) return NO;
+ trans->Init(nullptr);
+
+ trans->AddDataFlavor(kTextMime);
+ trans->AddDataFlavor(kHTMLMime);
+
+ rv = nsClipboard::TransferableFromPasteboard(trans, pboard);
+ if (NS_FAILED(rv)) return NO;
+
+ NS_ENSURE_TRUE(mGeckoChild, false);
+
+ WidgetContentCommandEvent command(true, eContentCommandPasteTransferable,
+ mGeckoChild);
+ command.mTransferable = trans;
+ mGeckoChild->DispatchWindowEvent(command);
+
+ return command.mSucceeded && command.mIsEnabled;
+}
+
+- (void)pressureChangeWithEvent:(NSEvent*)event {
+ NS_OBJC_BEGIN_TRY_IGNORE_BLOCK
+
+ NSInteger stage = [event stage];
+ if (mLastPressureStage == 1 && stage == 2) {
+ NSUserDefaults* userDefaults = [NSUserDefaults standardUserDefaults];
+ if ([userDefaults integerForKey:@"com.apple.trackpad.forceClick"] == 1) {
+ // This is no public API to get configuration for current force click.
+ // This is filed as radar 29294285.
+ [self quickLookWithEvent:event];
+ }
+ }
+ mLastPressureStage = stage;
+
+ NS_OBJC_END_TRY_IGNORE_BLOCK
+}
+
+nsresult nsChildView::GetSelectionAsPlaintext(nsAString& aResult) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if (!nsClipboard::sSelectionCache) {
+ MOZ_ASSERT(aResult.IsEmpty());
+ return NS_OK;
+ }
+
+ // Get the current chrome or content selection.
+ NSDictionary* pasteboardOutputDict = nullptr;
+ pasteboardOutputDict =
+ nsClipboard::PasteboardDictFromTransferable(nsClipboard::sSelectionCache);
+
+ if (NS_WARN_IF(!pasteboardOutputDict)) {
+ return NS_ERROR_FAILURE;
+ }
+
+ // Declare the pasteboard types.
+ unsigned int typeCount = [pasteboardOutputDict count];
+ NSMutableArray* declaredTypes = [NSMutableArray arrayWithCapacity:typeCount];
+ [declaredTypes addObjectsFromArray:[pasteboardOutputDict allKeys]];
+ NSString* currentKey = [declaredTypes objectAtIndex:0];
+ NSString* currentValue = [pasteboardOutputDict valueForKey:currentKey];
+ const char* textSelection = [currentValue UTF8String];
+ aResult = NS_ConvertUTF8toUTF16(textSelection);
+
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+#ifdef DEBUG
+nsresult nsChildView::SetHiDPIMode(bool aHiDPI) {
+ nsCocoaUtils::InvalidateHiDPIState();
+ Preferences::SetInt("gfx.hidpi.enabled", aHiDPI ? 1 : 0);
+ BackingScaleFactorChanged();
+ return NS_OK;
+}
+
+nsresult nsChildView::RestoreHiDPIMode() {
+ nsCocoaUtils::InvalidateHiDPIState();
+ Preferences::ClearUser("gfx.hidpi.enabled");
+ BackingScaleFactorChanged();
+ return NS_OK;
+}
+#endif
+
+#pragma mark -
+
+#ifdef ACCESSIBILITY
+
+/* Every ChildView has a corresponding mozDocAccessible object that is doing all
+ the heavy lifting. The topmost ChildView corresponds to a mozRootAccessible
+ object.
+
+ All ChildView needs to do is to route all accessibility calls (from the
+ NSAccessibility APIs) down to its object, pretending that they are the same.
+*/
+- (id<mozAccessible>)accessible {
+ if (!mGeckoChild) return nil;
+
+ id<mozAccessible> nativeAccessible = nil;
+
+ nsAutoRetainCocoaObject kungFuDeathGrip(self);
+ RefPtr<nsChildView> geckoChild(mGeckoChild);
+ RefPtr<a11y::LocalAccessible> accessible =
+ geckoChild->GetDocumentAccessible();
+ if (!accessible) return nil;
+
+ accessible->GetNativeInterface((void**)&nativeAccessible);
+
+# ifdef DEBUG_hakan
+ NSAssert(![nativeAccessible isExpired], @"native acc is expired!!!");
+# endif
+
+ return nativeAccessible;
+}
+
+/* Implementation of formal mozAccessible formal protocol (enabling mozViews
+ to talk to mozAccessible objects in the accessibility module). */
+
+- (BOOL)hasRepresentedView {
+ return YES;
+}
+
+- (id)representedView {
+ return self;
+}
+
+- (BOOL)isRoot {
+ return [[self accessible] isRoot];
+}
+
+# pragma mark -
+
+// general
+
+- (BOOL)isAccessibilityElement {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super isAccessibilityElement];
+
+ return [[self accessible] isAccessibilityElement];
+}
+
+- (id)accessibilityHitTest:(NSPoint)point {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityHitTest:point];
+
+ return [[self accessible] accessibilityHitTest:point];
+}
+
+- (id)accessibilityFocusedUIElement {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityFocusedUIElement];
+
+ return [[self accessible] accessibilityFocusedUIElement];
+}
+
+// actions
+
+- (NSArray*)accessibilityActionNames {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityActionNames];
+
+ return [[self accessible] accessibilityActionNames];
+}
+
+- (NSString*)accessibilityActionDescription:(NSString*)action {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityActionDescription:action];
+
+ return [[self accessible] accessibilityActionDescription:action];
+}
+
+- (void)accessibilityPerformAction:(NSString*)action {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityPerformAction:action];
+
+ return [[self accessible] accessibilityPerformAction:action];
+}
+
+// attributes
+
+- (NSArray*)accessibilityAttributeNames {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityAttributeNames];
+
+ return [[self accessible] accessibilityAttributeNames];
+}
+
+- (BOOL)accessibilityIsAttributeSettable:(NSString*)attribute {
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityIsAttributeSettable:attribute];
+
+ return [[self accessible] accessibilityIsAttributeSettable:attribute];
+}
+
+- (id)accessibilityAttributeValue:(NSString*)attribute {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ if (!mozilla::a11y::ShouldA11yBeEnabled())
+ return [super accessibilityAttributeValue:attribute];
+
+ id<mozAccessible> accessible = [self accessible];
+
+ // if we're the root (topmost) accessible, we need to return our native
+ // AXParent as we traverse outside to the hierarchy of whoever embeds us.
+ // thus, fall back on NSView's default implementation for this attribute.
+ if ([attribute isEqualToString:NSAccessibilityParentAttribute] &&
+ [accessible isRoot]) {
+ id parentAccessible = [super accessibilityAttributeValue:attribute];
+ return parentAccessible;
+ }
+
+ return [accessible accessibilityAttributeValue:attribute];
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(nil);
+}
+
+#endif /* ACCESSIBILITY */
+
++ (uint32_t)sUniqueKeyEventId {
+ return sUniqueKeyEventId;
+}
+
++ (NSMutableDictionary*)sNativeKeyEventsMap {
+ // This dictionary is "leaked".
+ static NSMutableDictionary* sNativeKeyEventsMap =
+ [[NSMutableDictionary alloc] init];
+ return sNativeKeyEventsMap;
+}
+
+@end
+
+@implementation PixelHostingView
+
+- (id)initWithFrame:(NSRect)aRect {
+ self = [super initWithFrame:aRect];
+
+ self.wantsLayer = YES;
+ self.layerContentsRedrawPolicy = NSViewLayerContentsRedrawDuringViewResize;
+
+ return self;
+}
+
+- (BOOL)isFlipped {
+ return YES;
+}
+
+- (NSView*)hitTest:(NSPoint)aPoint {
+ return nil;
+}
+
+- (void)drawRect:(NSRect)aRect {
+ NS_WARNING("Unexpected call to drawRect: This view returns YES from "
+ "wantsUpdateLayer, so "
+ "drawRect should not be called.");
+}
+
+- (BOOL)wantsUpdateLayer {
+ return YES;
+}
+
+- (void)updateLayer {
+ [(ChildView*)[self superview] updateRootCALayer];
+}
+
+- (BOOL)wantsBestResolutionOpenGLSurface {
+ return nsCocoaUtils::HiDPIEnabled() ? YES : NO;
+}
+
+@end
+
+#pragma mark -
+
+void ChildViewMouseTracker::OnDestroyView(ChildView* aView) {
+ if (sLastMouseEventView == aView) {
+ sLastMouseEventView = nil;
+ [sLastMouseMoveEvent release];
+ sLastMouseMoveEvent = nil;
+ }
+}
+
+void ChildViewMouseTracker::OnDestroyWindow(NSWindow* aWindow) {
+ if (sWindowUnderMouse == aWindow) {
+ sWindowUnderMouse = nil;
+ }
+}
+
+void ChildViewMouseTracker::MouseEnteredWindow(NSEvent* aEvent) {
+ NSWindow* window = aEvent.window;
+ if (!window.ignoresMouseEvents) {
+ sWindowUnderMouse = window;
+ ReEvaluateMouseEnterState(aEvent);
+ }
+}
+
+void ChildViewMouseTracker::MouseExitedWindow(NSEvent* aEvent) {
+ if (sWindowUnderMouse == aEvent.window) {
+ sWindowUnderMouse = nil;
+ [sLastMouseMoveEvent release];
+ sLastMouseMoveEvent = nil;
+ ReEvaluateMouseEnterState(aEvent);
+ }
+}
+
+void ChildViewMouseTracker::NativeMenuOpened() {
+ // Send a mouse exit event now.
+ // The menu consumes all mouse events while it's open, and we don't want to be
+ // stuck thinking the mouse is still hovering our window after the mouse has
+ // already moved. This could result in unintended cursor changes or tooltips.
+ sWindowUnderMouse = nil;
+ ReEvaluateMouseEnterState(nil);
+}
+
+void ChildViewMouseTracker::NativeMenuClosed() {
+ // If a window was hovered before the menu opened, re-enter that window at the
+ // last known mouse position. After -[NSView didCloseMenu:withEvent:] is
+ // called, any NSTrackingArea updates that were buffered while the menu was
+ // open will be replayed.
+ if (sLastMouseMoveEvent) {
+ sWindowUnderMouse = sLastMouseMoveEvent.window;
+ ReEvaluateMouseEnterState(sLastMouseMoveEvent);
+ }
+}
+
+void ChildViewMouseTracker::ReEvaluateMouseEnterState(NSEvent* aEvent,
+ ChildView* aOldView) {
+ ChildView* oldView = aOldView ? aOldView : sLastMouseEventView;
+ sLastMouseEventView = ViewForEvent(aEvent);
+ if (sLastMouseEventView != oldView) {
+ // Send enter and / or exit events.
+ WidgetMouseEvent::ExitFrom exitFrom =
+ [sLastMouseEventView window] == [oldView window]
+ ? WidgetMouseEvent::ePlatformChild
+ : WidgetMouseEvent::ePlatformTopLevel;
+ [oldView sendMouseEnterOrExitEvent:aEvent enter:NO exitFrom:exitFrom];
+ // After the cursor exits the window set it to a visible regular arrow
+ // cursor.
+ if (exitFrom == WidgetMouseEvent::ePlatformTopLevel) {
+ [[nsCursorManager sharedInstance]
+ setNonCustomCursor:nsIWidget::Cursor{eCursor_standard}];
+ }
+ [sLastMouseEventView sendMouseEnterOrExitEvent:aEvent
+ enter:YES
+ exitFrom:exitFrom];
+ }
+}
+
+void ChildViewMouseTracker::ResendLastMouseMoveEvent() {
+ if (sLastMouseMoveEvent) {
+ MouseMoved(sLastMouseMoveEvent);
+ }
+}
+
+void ChildViewMouseTracker::MouseMoved(NSEvent* aEvent) {
+ MouseEnteredWindow(aEvent);
+ [sLastMouseEventView handleMouseMoved:aEvent];
+ if (sLastMouseMoveEvent != aEvent) {
+ [sLastMouseMoveEvent release];
+ sLastMouseMoveEvent = [aEvent retain];
+ }
+}
+
+void ChildViewMouseTracker::MouseScrolled(NSEvent* aEvent) {
+ if (!nsCocoaUtils::IsMomentumScrollEvent(aEvent)) {
+ // Store the position so we can pin future momentum scroll events.
+ sLastScrollEventScreenLocation =
+ nsCocoaUtils::ScreenLocationForEvent(aEvent);
+ }
+}
+
+ChildView* ChildViewMouseTracker::ViewForEvent(NSEvent* aEvent) {
+ NSWindow* window = sWindowUnderMouse;
+ if (!window) return nil;
+
+ NSPoint windowEventLocation =
+ nsCocoaUtils::EventLocationForWindow(aEvent, window);
+ NSView* view = [[[window contentView] superview] hitTest:windowEventLocation];
+
+ if (![view isKindOfClass:[ChildView class]]) return nil;
+
+ ChildView* childView = (ChildView*)view;
+ // If childView is being destroyed return nil.
+ if (![childView widget]) return nil;
+ return WindowAcceptsEvent(window, aEvent, childView) ? childView : nil;
+}
+
+BOOL ChildViewMouseTracker::WindowAcceptsEvent(NSWindow* aWindow,
+ NSEvent* aEvent,
+ ChildView* aView,
+ BOOL aIsClickThrough) {
+ // Right mouse down events may get through to all windows, even to a top level
+ // window with an open sheet.
+ if (!aWindow || [aEvent type] == NSEventTypeRightMouseDown) return YES;
+
+ id delegate = [aWindow delegate];
+ if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]]) return YES;
+
+ nsIWidget* windowWidget = [(WindowDelegate*)delegate geckoWidget];
+ if (!windowWidget) return YES;
+
+ NSWindow* topLevelWindow = nil;
+
+ switch (windowWidget->GetWindowType()) {
+ case WindowType::Popup:
+ // If this is a context menu, it won't have a parent. So we'll always
+ // accept mouse move events on context menus even when none of our windows
+ // is active, which is the right thing to do.
+ // For panels, the parent window is the XUL window that owns the panel.
+ return WindowAcceptsEvent([aWindow parentWindow], aEvent, aView,
+ aIsClickThrough);
+
+ case WindowType::TopLevel:
+ case WindowType::Dialog:
+ if ([aWindow attachedSheet]) return NO;
+
+ topLevelWindow = aWindow;
+ break;
+ case WindowType::Sheet: {
+ nsIWidget* parentWidget = windowWidget->GetSheetWindowParent();
+ if (!parentWidget) return YES;
+
+ topLevelWindow = (NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW);
+ break;
+ }
+
+ default:
+ return YES;
+ }
+
+ if (!topLevelWindow || ([topLevelWindow isMainWindow] && !aIsClickThrough) ||
+ [aEvent type] == NSEventTypeOtherMouseDown ||
+ (([aEvent modifierFlags] & NSEventModifierFlagCommand) != 0 &&
+ [aEvent type] != NSEventTypeMouseMoved))
+ return YES;
+
+ // If we're here then we're dealing with a left click or mouse move on an
+ // inactive window or something similar. Ask Gecko what to do.
+ return [aView inactiveWindowAcceptsMouseEvent:aEvent];
+}
+
+#pragma mark -