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Diffstat (limited to '')
| -rw-r--r-- | widget/cocoa/nsChildView.mm | 4921 |
1 files changed, 4921 insertions, 0 deletions
diff --git a/widget/cocoa/nsChildView.mm b/widget/cocoa/nsChildView.mm new file mode 100644 index 0000000000..b21b2d05e3 --- /dev/null +++ b/widget/cocoa/nsChildView.mm @@ -0,0 +1,4921 @@ +/* -*- 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 "nsCocoaFeatures.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 "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, nsWidgetInitData* 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; + + // Make sure that no composition is in progress while disconnecting + // ourselves from the view. + MutexAutoLock lock(mCompositingLock); + + if (mOnDestroyCalled) return; + mOnDestroyCalled = true; + + // Stuff below may delete the last ref to this + nsCOMPtr<nsIWidget> kungFuDeathGrip(this); + + [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: + case NS_NATIVE_DISPLAY: + retVal = (void*)mView; + break; + + case NS_NATIVE_WINDOW: + retVal = [mView window]; + break; + + case NS_NATIVE_GRAPHIC: + NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a Mac OS X child view!"); + retVal = nullptr; + break; + + case NS_NATIVE_OFFSETX: + retVal = 0; + break; + + case NS_NATIVE_OFFSETY: + retVal = 0; + break; + + 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); + + if (NS_SUCCEEDED([[nsCursorManager sharedInstance] setCustomCursor:aCursor + widgetScaleFactor:BackingScaleFactor()])) { + 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->WindowType() == eWindowType_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->WindowType() == eWindowType_popup) { + return mParentWidget; + } + + return this; +} + +void nsChildView::WillPaintWindow() { + nsCOMPtr<nsIWidget> widget = GetWidgetForListenerEvents(); + + nsIWidgetListener* listener = widget->GetWidgetListener(); + if (listener) { + listener->WillPaintWindow(widget); + } +} + +bool nsChildView::PaintWindow(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) { + RefPtr<gfxContext> targetContext = gfxContext::CreateOrNull(aDT); + MOZ_ASSERT(targetContext); + + // 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); + case eThemeGeometryTypeHighlightedMenuItem: + return Some(VibrancyType::HIGHLIGHTED_MENUITEM); + case eThemeGeometryTypeSourceList: + return Some(VibrancyType::SOURCE_LIST); + case eThemeGeometryTypeSourceListSelection: + return Some(VibrancyType::SOURCE_LIST_SELECTION); + case eThemeGeometryTypeActiveSourceListSelection: + return Some(VibrancyType::ACTIVE_SOURCE_LIST_SELECTION); + 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); + LayoutDeviceIntRegion highlightedMenuItemRegion = + GatherVibrantRegion(aThemeGeometries, VibrancyType::HIGHLIGHTED_MENUITEM); + LayoutDeviceIntRegion sourceListRegion = + GatherVibrantRegion(aThemeGeometries, VibrancyType::SOURCE_LIST); + LayoutDeviceIntRegion sourceListSelectionRegion = + GatherVibrantRegion(aThemeGeometries, VibrancyType::SOURCE_LIST_SELECTION); + LayoutDeviceIntRegion activeSourceListSelectionRegion = + GatherVibrantRegion(aThemeGeometries, VibrancyType::ACTIVE_SOURCE_LIST_SELECTION); + + MakeRegionsNonOverlapping(menuRegion, tooltipRegion, highlightedMenuItemRegion, sourceListRegion, + sourceListSelectionRegion, activeSourceListSelectionRegion); + + auto& vm = EnsureVibrancyManager(); + bool changed = false; + changed |= vm.UpdateVibrantRegion(VibrancyType::MENU, menuRegion); + changed |= vm.UpdateVibrantRegion(VibrancyType::TOOLTIP, tooltipRegion); + changed |= vm.UpdateVibrantRegion(VibrancyType::HIGHLIGHTED_MENUITEM, highlightedMenuItemRegion); + changed |= vm.UpdateVibrantRegion(VibrancyType::SOURCE_LIST, sourceListRegion); + changed |= vm.UpdateVibrantRegion(VibrancyType::SOURCE_LIST_SELECTION, sourceListSelectionRegion); + changed |= vm.UpdateVibrantRegion(VibrancyType::ACTIVE_SOURCE_LIST_SELECTION, + activeSourceListSelectionRegion); + + 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. + return [self visibleRect]; +} +@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) { + NSWindow* currentPopup = static_cast<NSWindow*>(rollupWidget->GetNativeData(NS_NATIVE_WINDOW)); + if (!nsCocoaUtils::IsEventOverWindow(theEvent, currentPopup)) { + // event is not over the rollup window, default is to roll up + bool shouldRollup = true; + + // check to see if scroll/zoom events should roll up the popup + if (isWheelTypeEvent) { + shouldRollup = rollupListener->ShouldRollupOnMouseWheelEvent(); + // consume scroll events that aren't over the popup + // unless the popup is an arrow panel + consumeEvent = rollupListener->ShouldConsumeOnMouseWheelEvent(); + } + + // if we're dealing with menus, we probably have submenus and + // we don't want to rollup if the click is in a parent menu of + // the current submenu + uint32_t popupsToRollup = UINT32_MAX; + 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) { + shouldRollup = false; + } else { + popupsToRollup = sameTypeCount; + } + break; + } + } + + if (shouldRollup) { + if ([theEvent type] == NSEventTypeLeftMouseDown) { + NSPoint point = [NSEvent mouseLocation]; + FlipCocoaScreenCoordinate(point); + LayoutDeviceIntPoint devPoint = mGeckoChild->CocoaPointsToDevPixels(point); + consumeEvent = (BOOL)rollupListener->Rollup(popupsToRollup, true, &devPoint, nullptr); + } else { + consumeEvent = (BOOL)rollupListener->Rollup(popupsToRollup, true, nullptr, nullptr); + } + } + } + } + + 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; + + 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) 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; + + 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; + + 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); + + NSAttributedString* attrStr; + if ([aString isKindOfClass:[NSAttributedString class]]) { + attrStr = static_cast<NSAttributedString*>(aString); + } else { + attrStr = [[[NSAttributedString alloc] initWithString:aString] autorelease]; + } + + mTextInputHandler->InsertText(attrStr, &replacementRange); + + NS_OBJC_END_TRY_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; + + 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(kUnicodeMime); + trans->AddDataFlavor(kHTMLMime); + + rv = nsClipboard::TransferableFromPasteboard(trans, pboard); + if (NS_FAILED(rv)) return NO; + + NS_ENSURE_TRUE(mGeckoChild, false); + + WidgetContentCommandEvent command(true, eContentCommandPasteTransferable, mGeckoChild); + command.mTransferable = trans; + mGeckoChild->DispatchWindowEvent(command); + + return command.mSucceeded && command.mIsEnabled; +} + +- (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) { + sWindowUnderMouse = [aEvent 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->WindowType()) { + case eWindowType_popup: + // If this is a context menu, it won't have a parent. So we'll always + // accept mouse move events on context menus even when none of our windows + // is active, which is the right thing to do. + // For panels, the parent window is the XUL window that owns the panel. + return WindowAcceptsEvent([aWindow parentWindow], aEvent, aView, aIsClickThrough); + + case eWindowType_toplevel: + case eWindowType_dialog: + if ([aWindow attachedSheet]) return NO; + + topLevelWindow = aWindow; + break; + case eWindowType_sheet: { + nsIWidget* parentWidget = windowWidget->GetSheetWindowParent(); + if (!parentWidget) return YES; + + topLevelWindow = (NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW); + break; + } + + default: + return YES; + } + + if (!topLevelWindow || ([topLevelWindow isMainWindow] && !aIsClickThrough) || + [aEvent type] == 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 - |