diff options
Diffstat (limited to '')
| -rw-r--r-- | widget/cocoa/nsCocoaWindow.mm | 4259 |
1 files changed, 4259 insertions, 0 deletions
diff --git a/widget/cocoa/nsCocoaWindow.mm b/widget/cocoa/nsCocoaWindow.mm new file mode 100644 index 0000000000..c3c246cc74 --- /dev/null +++ b/widget/cocoa/nsCocoaWindow.mm @@ -0,0 +1,4259 @@ +/* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsCocoaWindow.h" + +#include "AppearanceOverride.h" +#include "NativeKeyBindings.h" +#include "ScreenHelperCocoa.h" +#include "TextInputHandler.h" +#include "nsCocoaUtils.h" +#include "nsObjCExceptions.h" +#include "nsCOMPtr.h" +#include "nsWidgetsCID.h" +#include "nsIRollupListener.h" +#include "nsChildView.h" +#include "nsWindowMap.h" +#include "nsAppShell.h" +#include "nsIAppShellService.h" +#include "nsIBaseWindow.h" +#include "nsIInterfaceRequestorUtils.h" +#include "nsIAppWindow.h" +#include "nsToolkit.h" +#include "nsTouchBarNativeAPIDefines.h" +#include "nsPIDOMWindow.h" +#include "nsThreadUtils.h" +#include "nsMenuBarX.h" +#include "nsMenuUtilsX.h" +#include "nsStyleConsts.h" +#include "nsNativeThemeColors.h" +#include "nsNativeThemeCocoa.h" +#include "nsChildView.h" +#include "nsCocoaFeatures.h" +#include "nsIScreenManager.h" +#include "nsIWidgetListener.h" +#include "SDKDeclarations.h" +#include "VibrancyManager.h" +#include "nsPresContext.h" +#include "nsDocShell.h" + +#include "gfxPlatform.h" +#include "qcms.h" + +#include "mozilla/AutoRestore.h" +#include "mozilla/BasicEvents.h" +#include "mozilla/dom/Document.h" +#include "mozilla/Maybe.h" +#include "mozilla/NativeKeyBindingsType.h" +#include "mozilla/Preferences.h" +#include "mozilla/PresShell.h" +#include "mozilla/ScopeExit.h" +#include "mozilla/StaticPrefs_gfx.h" +#include "mozilla/StaticPrefs_widget.h" +#include "mozilla/WritingModes.h" +#include "mozilla/layers/CompositorBridgeChild.h" +#include "mozilla/widget/Screen.h" +#include <algorithm> + +namespace mozilla { +namespace layers { +class LayerManager; +} // namespace layers +} // namespace mozilla +using namespace mozilla::layers; +using namespace mozilla::widget; +using namespace mozilla; + +int32_t gXULModalLevel = 0; + +// In principle there should be only one app-modal window at any given time. +// But sometimes, despite our best efforts, another window appears above the +// current app-modal window. So we need to keep a linked list of app-modal +// windows. (A non-sheet window that appears above an app-modal window is +// also made app-modal.) See nsCocoaWindow::SetModal(). +nsCocoaWindowList* gGeckoAppModalWindowList = NULL; + +BOOL sTouchBarIsInitialized = NO; + +// defined in nsMenuBarX.mm +extern NSMenu* sApplicationMenu; // Application menu shared by all menubars + +// defined in nsChildView.mm +extern BOOL gSomeMenuBarPainted; + +extern "C" { +// CGSPrivate.h +typedef NSInteger CGSConnection; +typedef NSUInteger CGSSpaceID; +typedef NSInteger CGSWindow; +typedef enum { + kCGSSpaceIncludesCurrent = 1 << 0, + kCGSSpaceIncludesOthers = 1 << 1, + kCGSSpaceIncludesUser = 1 << 2, + + kCGSAllSpacesMask = kCGSSpaceIncludesCurrent | kCGSSpaceIncludesOthers | kCGSSpaceIncludesUser +} CGSSpaceMask; +static NSString* const CGSSpaceIDKey = @"ManagedSpaceID"; +static NSString* const CGSSpacesKey = @"Spaces"; +extern CGSConnection _CGSDefaultConnection(void); +extern CGError CGSSetWindowTransform(CGSConnection cid, CGSWindow wid, CGAffineTransform transform); +} + +#define NS_APPSHELLSERVICE_CONTRACTID "@mozilla.org/appshell/appShellService;1" + +NS_IMPL_ISUPPORTS_INHERITED(nsCocoaWindow, Inherited, nsPIWidgetCocoa) + +// A note on testing to see if your object is a sheet... +// |mWindowType == WindowType::Sheet| is true if your gecko nsIWidget is a sheet +// widget - whether or not the sheet is showing. |[mWindow isSheet]| will return +// true *only when the sheet is actually showing*. Choose your test wisely. + +static void RollUpPopups( + nsIRollupListener::AllowAnimations aAllowAnimations = nsIRollupListener::AllowAnimations::Yes) { + nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener(); + NS_ENSURE_TRUE_VOID(rollupListener); + + if (rollupListener->RollupNativeMenu()) { + return; + } + + nsCOMPtr<nsIWidget> rollupWidget = rollupListener->GetRollupWidget(); + if (!rollupWidget) { + return; + } + nsIRollupListener::RollupOptions options{0, nsIRollupListener::FlushViews::Yes, nullptr, + aAllowAnimations}; + rollupListener->Rollup(options); +} + +nsCocoaWindow::nsCocoaWindow() + : mParent(nullptr), + mAncestorLink(nullptr), + mWindow(nil), + mDelegate(nil), + mSheetWindowParent(nil), + mPopupContentView(nil), + mFullscreenTransitionAnimation(nil), + mShadowStyle(StyleWindowShadow::Default), + mBackingScaleFactor(0.0), + mAnimationType(nsIWidget::eGenericWindowAnimation), + mWindowMadeHere(false), + mSheetNeedsShow(false), + mSizeMode(nsSizeMode_Normal), + mInFullScreenMode(false), + mInNativeFullScreenMode(false), + mIgnoreOcclusionCount(0), + mHasStartedNativeFullscreen(false), + mModal(false), + mFakeModal(false), + mIsAnimationSuppressed(false), + mInReportMoveEvent(false), + mInResize(false), + mWindowTransformIsIdentity(true), + mAlwaysOnTop(false), + mAspectRatioLocked(false), + mNumModalDescendents(0), + mWindowAnimationBehavior(NSWindowAnimationBehaviorDefault), + mWasShown(false) { + // Disable automatic tabbing. We need to do this before we + // orderFront any of our windows. + [NSWindow setAllowsAutomaticWindowTabbing:NO]; +} + +void nsCocoaWindow::DestroyNativeWindow() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) return; + + [mWindow releaseJSObjects]; + // We want to unhook the delegate here because we don't want events + // sent to it after this object has been destroyed. + [mWindow setDelegate:nil]; + [mWindow close]; + mWindow = nil; + [mDelegate autorelease]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +nsCocoaWindow::~nsCocoaWindow() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // Notify the children that we're gone. Popup windows (e.g. tooltips) can + // have nsChildView children. 'kid' is an nsChildView object if and only if + // its 'type' is 'WindowType::Child'. + // 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;) { + WindowType kidType = kid->GetWindowType(); + if (kidType == WindowType::Child) { + nsChildView* childView = static_cast<nsChildView*>(kid); + kid = kid->GetPrevSibling(); + childView->ResetParent(); + } else { + nsCocoaWindow* childWindow = static_cast<nsCocoaWindow*>(kid); + childWindow->mParent = nullptr; + childWindow->mAncestorLink = mAncestorLink; + kid = kid->GetPrevSibling(); + } + } + + if (mWindow && mWindowMadeHere) { + DestroyNativeWindow(); + } + + NS_IF_RELEASE(mPopupContentView); + + // Deal with the possiblity that we're being destroyed while running modal. + if (mModal) { + NS_WARNING("Widget destroyed while running modal!"); + --gXULModalLevel; + NS_ASSERTION(gXULModalLevel >= 0, "Weirdness setting modality!"); + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// Find the screen that overlaps aRect the most, +// if none are found default to the mainScreen. +static NSScreen* FindTargetScreenForRect(const DesktopIntRect& aRect) { + NSScreen* targetScreen = [NSScreen mainScreen]; + NSEnumerator* screenEnum = [[NSScreen screens] objectEnumerator]; + int largestIntersectArea = 0; + while (NSScreen* screen = [screenEnum nextObject]) { + DesktopIntRect screenRect = nsCocoaUtils::CocoaRectToGeckoRect([screen visibleFrame]); + screenRect = screenRect.Intersect(aRect); + int area = screenRect.width * screenRect.height; + if (area > largestIntersectArea) { + largestIntersectArea = area; + targetScreen = screen; + } + } + return targetScreen; +} + +// fits the rect to the screen that contains the largest area of it, +// or to aScreen if a screen is passed in +// NB: this operates with aRect in desktop pixels +static void FitRectToVisibleAreaForScreen(DesktopIntRect& aRect, NSScreen* aScreen) { + if (!aScreen) { + aScreen = FindTargetScreenForRect(aRect); + } + + DesktopIntRect screenBounds = nsCocoaUtils::CocoaRectToGeckoRect([aScreen visibleFrame]); + + if (aRect.width > screenBounds.width) { + aRect.width = screenBounds.width; + } + if (aRect.height > screenBounds.height) { + aRect.height = screenBounds.height; + } + + if (aRect.x - screenBounds.x + aRect.width > screenBounds.width) { + aRect.x += screenBounds.width - (aRect.x - screenBounds.x + aRect.width); + } + if (aRect.y - screenBounds.y + aRect.height > screenBounds.height) { + aRect.y += screenBounds.height - (aRect.y - screenBounds.y + aRect.height); + } + + // If the left/top edge of the window is off the screen in either direction, + // then set the window to start at the left/top edge of the screen. + if (aRect.x < screenBounds.x || aRect.x > (screenBounds.x + screenBounds.width)) { + aRect.x = screenBounds.x; + } + if (aRect.y < screenBounds.y || aRect.y > (screenBounds.y + screenBounds.height)) { + aRect.y = screenBounds.y; + } +} + +DesktopToLayoutDeviceScale ParentBackingScaleFactor(nsIWidget* aParent, NSView* aParentView) { + if (aParent) { + return aParent->GetDesktopToDeviceScale(); + } + NSWindow* parentWindow = [aParentView window]; + if (parentWindow) { + return DesktopToLayoutDeviceScale([parentWindow backingScaleFactor]); + } + return DesktopToLayoutDeviceScale(1.0); +} + +// Returns the screen rectangle for the given widget. +// Child widgets are positioned relative to this rectangle. +// Exactly one of the arguments must be non-null. +static DesktopRect GetWidgetScreenRectForChildren(nsIWidget* aWidget, NSView* aView) { + if (aWidget) { + mozilla::DesktopToLayoutDeviceScale scale = aWidget->GetDesktopToDeviceScale(); + if (aWidget->GetWindowType() == WindowType::Child) { + return aWidget->GetScreenBounds() / scale; + } + return aWidget->GetClientBounds() / scale; + } + + MOZ_RELEASE_ASSERT(aView); + + // 1. Transform the view rect into window coords. + // The returned rect is in "origin bottom-left" coordinates. + NSRect rectInWindowCoordinatesOBL = [aView convertRect:[aView bounds] toView:nil]; + + // 2. Turn the window-coord rect into screen coords, still origin bottom-left. + NSRect rectInScreenCoordinatesOBL = + [[aView window] convertRectToScreen:rectInWindowCoordinatesOBL]; + + // 3. Convert the NSRect to a DesktopRect. This will convert to coordinates + // with the origin in the top left corner of the primary screen. + return DesktopRect(nsCocoaUtils::CocoaRectToGeckoRect(rectInScreenCoordinatesOBL)); +} + +// aRect here is specified in desktop pixels +// +// For child windows (where either aParent or aNativeParent is non-null), +// aRect.{x,y} are offsets from the origin of the parent window and not an +// absolute position. +nsresult nsCocoaWindow::Create(nsIWidget* aParent, nsNativeWidget aNativeParent, + const DesktopIntRect& aRect, widget::InitData* aInitData) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + // Because the hidden window is created outside of an event loop, + // we have to provide an autorelease pool (see bug 559075). + nsAutoreleasePool localPool; + + DesktopIntRect newBounds = aRect; + FitRectToVisibleAreaForScreen(newBounds, nullptr); + + // Set defaults which can be overriden from aInitData in BaseCreate + mWindowType = WindowType::TopLevel; + mBorderStyle = BorderStyle::Default; + + // Ensure that the toolkit is created. + nsToolkit::GetToolkit(); + + Inherited::BaseCreate(aParent, aInitData); + + mParent = aParent; + mAncestorLink = aParent; + mAlwaysOnTop = aInitData->mAlwaysOnTop; + + // If we have a parent widget, the new widget will be offset from the + // parent widget by aRect.{x,y}. Otherwise, we'll use aRect for the + // new widget coordinates. + DesktopIntPoint parentOrigin; + + // Do we have a parent widget? + if (aParent || aNativeParent) { + DesktopRect parentDesktopRect = GetWidgetScreenRectForChildren(aParent, (NSView*)aNativeParent); + parentOrigin = gfx::RoundedToInt(parentDesktopRect.TopLeft()); + } + + DesktopIntRect widgetRect = aRect + parentOrigin; + + nsresult rv = CreateNativeWindow(nsCocoaUtils::GeckoRectToCocoaRect(widgetRect), mBorderStyle, + false, aInitData->mIsPrivate); + NS_ENSURE_SUCCESS(rv, rv); + + if (mWindowType == WindowType::Popup) { + // now we can convert widgetRect to device pixels for the window we created, + // as the child view expects a rect expressed in the dev pix of its parent + LayoutDeviceIntRect devRect = RoundedToInt(newBounds * GetDesktopToDeviceScale()); + return CreatePopupContentView(devRect, aInitData); + } + + mIsAnimationSuppressed = aInitData->mIsAnimationSuppressed; + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +nsresult nsCocoaWindow::Create(nsIWidget* aParent, nsNativeWidget aNativeParent, + const LayoutDeviceIntRect& aRect, widget::InitData* aInitData) { + DesktopIntRect desktopRect = + RoundedToInt(aRect / ParentBackingScaleFactor(aParent, (NSView*)aNativeParent)); + return Create(aParent, aNativeParent, desktopRect, aInitData); +} + +static unsigned int WindowMaskForBorderStyle(BorderStyle aBorderStyle) { + bool allOrDefault = (aBorderStyle == BorderStyle::All || aBorderStyle == BorderStyle::Default); + + /* Apple's docs on NSWindow styles say that "a window's style mask should + * include NSWindowStyleMaskTitled if it includes any of the others [besides + * NSWindowStyleMaskBorderless]". This implies that a borderless window + * shouldn't have any other styles than NSWindowStyleMaskBorderless. + */ + if (!allOrDefault && !(aBorderStyle & BorderStyle::Title)) { + if (aBorderStyle & BorderStyle::Minimize) { + /* It appears that at a minimum, borderless windows can be miniaturizable, + * effectively contradicting some of Apple's documentation referenced + * above. One such exception is the screen share indicator, see + * bug 1742877. + */ + return NSWindowStyleMaskBorderless | NSWindowStyleMaskMiniaturizable; + } + return NSWindowStyleMaskBorderless; + } + + unsigned int mask = NSWindowStyleMaskTitled; + if (allOrDefault || aBorderStyle & BorderStyle::Close) { + mask |= NSWindowStyleMaskClosable; + } + if (allOrDefault || aBorderStyle & BorderStyle::Minimize) { + mask |= NSWindowStyleMaskMiniaturizable; + } + if (allOrDefault || aBorderStyle & BorderStyle::ResizeH) { + mask |= NSWindowStyleMaskResizable; + } + + return mask; +} + +// If aRectIsFrameRect, aRect specifies the frame rect of the new window. +// Otherwise, aRect.x/y specify the position of the window's frame relative to +// the bottom of the menubar and aRect.width/height specify the size of the +// content rect. +nsresult nsCocoaWindow::CreateNativeWindow(const NSRect& aRect, BorderStyle aBorderStyle, + bool aRectIsFrameRect, bool aIsPrivateBrowsing) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + // We default to NSWindowStyleMaskBorderless, add features if needed. + unsigned int features = NSWindowStyleMaskBorderless; + + // Configure the window we will create based on the window type. + switch (mWindowType) { + case WindowType::Invisible: + case WindowType::Child: + break; + case WindowType::Popup: + if (aBorderStyle != BorderStyle::Default && mBorderStyle & BorderStyle::Title) { + features |= NSWindowStyleMaskTitled; + if (aBorderStyle & BorderStyle::Close) { + features |= NSWindowStyleMaskClosable; + } + } + break; + case WindowType::TopLevel: + case WindowType::Dialog: + features = WindowMaskForBorderStyle(aBorderStyle); + break; + case WindowType::Sheet: + if (mParent->GetWindowType() != WindowType::Invisible && + aBorderStyle & BorderStyle::ResizeH) { + features = NSWindowStyleMaskResizable; + } else { + features = NSWindowStyleMaskMiniaturizable; + } + features |= NSWindowStyleMaskTitled; + break; + default: + NS_ERROR("Unhandled window type!"); + return NS_ERROR_FAILURE; + } + + NSRect contentRect; + + if (aRectIsFrameRect) { + contentRect = [NSWindow contentRectForFrameRect:aRect styleMask:features]; + } else { + /* + * We pass a content area rect to initialize the native Cocoa window. The + * content rect we give is the same size as the size we're given by gecko. + * The origin we're given for non-popup windows is moved down by the height + * of the menu bar so that an origin of (0,100) from gecko puts the window + * 100 pixels below the top of the available desktop area. We also move the + * origin down by the height of a title bar if it exists. This is so the + * origin that gecko gives us for the top-left of the window turns out to + * be the top-left of the window we create. This is how it was done in + * Carbon. If it ought to be different we'll probably need to look at all + * the callers. + * + * Note: This means that if you put a secondary screen on top of your main + * screen and open a window in the top screen, it'll be incorrectly shifted + * down by the height of the menu bar. Same thing would happen in Carbon. + * + * Note: If you pass a rect with 0,0 for an origin, the window ends up in a + * weird place for some reason. This stops that without breaking popups. + */ + // Compensate for difference between frame and content area height (e.g. title bar). + NSRect newWindowFrame = [NSWindow frameRectForContentRect:aRect styleMask:features]; + + contentRect = aRect; + contentRect.origin.y -= (newWindowFrame.size.height - aRect.size.height); + + if (mWindowType != WindowType::Popup) contentRect.origin.y -= [[NSApp mainMenu] menuBarHeight]; + } + + // NSLog(@"Top-level window being created at Cocoa rect: %f, %f, %f, %f\n", + // rect.origin.x, rect.origin.y, rect.size.width, rect.size.height); + + Class windowClass = [BaseWindow class]; + // If we have a titlebar on a top-level window, we want to be able to control the + // titlebar color (for unified windows), so use the special ToolbarWindow class. + // Note that we need to check the window type because we mark sheets as + // having titlebars. + if ((mWindowType == WindowType::TopLevel || mWindowType == WindowType::Dialog) && + (features & NSWindowStyleMaskTitled)) + windowClass = [ToolbarWindow class]; + // If we're a popup window we need to use the PopupWindow class. + else if (mWindowType == WindowType::Popup) + windowClass = [PopupWindow class]; + // If we're a non-popup borderless window we need to use the + // BorderlessWindow class. + else if (features == NSWindowStyleMaskBorderless) + windowClass = [BorderlessWindow class]; + + // Create the window + mWindow = [[windowClass alloc] initWithContentRect:contentRect + styleMask:features + backing:NSBackingStoreBuffered + defer:YES]; + + // Make sure that window titles don't leak to disk in private browsing mode + // due to macOS' resume feature. + [mWindow setRestorable:!aIsPrivateBrowsing]; + if (aIsPrivateBrowsing) { + [mWindow disableSnapshotRestoration]; + } + + // setup our notification delegate. Note that setDelegate: does NOT retain. + mDelegate = [[WindowDelegate alloc] initWithGeckoWindow:this]; + [mWindow setDelegate:mDelegate]; + + // Make sure that the content rect we gave has been honored. + NSRect wantedFrame = [mWindow frameRectForChildViewRect:contentRect]; + if (!NSEqualRects([mWindow frame], wantedFrame)) { + // This can happen when the window is not on the primary screen. + [mWindow setFrame:wantedFrame display:NO]; + } + UpdateBounds(); + + if (mWindowType == WindowType::Invisible) { + [mWindow setLevel:kCGDesktopWindowLevelKey]; + } + + if (mWindowType == WindowType::Popup) { + SetPopupWindowLevel(); + [mWindow setBackgroundColor:[NSColor clearColor]]; + [mWindow setOpaque:NO]; + + // When multiple spaces are in use and the browser is assigned to a + // particular space, override the "Assign To" space and display popups on + // the active space. Does not work with multiple displays. See + // NeedsRecreateToReshow() for multi-display with multi-space workaround. + if (!mAlwaysOnTop) { + NSWindowCollectionBehavior behavior = [mWindow collectionBehavior]; + behavior |= NSWindowCollectionBehaviorMoveToActiveSpace; + [mWindow setCollectionBehavior:behavior]; + } + } else { + // Non-popup windows are always opaque. + [mWindow setOpaque:YES]; + } + + NSWindowCollectionBehavior newBehavior = [mWindow collectionBehavior]; + if (mAlwaysOnTop) { + [mWindow setLevel:NSFloatingWindowLevel]; + newBehavior |= NSWindowCollectionBehaviorCanJoinAllSpaces; + } + [mWindow setCollectionBehavior:newBehavior]; + + [mWindow setContentMinSize:NSMakeSize(60, 60)]; + [mWindow disableCursorRects]; + + // Make the window use CoreAnimation from the start, so that we don't + // switch from a non-CA window to a CA-window in the middle. + [[mWindow contentView] setWantsLayer:YES]; + + // Make sure the window starts out not draggable by the background. + // We will turn it on as necessary. + [mWindow setMovableByWindowBackground:NO]; + + [[WindowDataMap sharedWindowDataMap] ensureDataForWindow:mWindow]; + mWindowMadeHere = true; + + if (@available(macOS 10.14, *)) { + // Make the window respect the global appearance, which follows the browser.theme.toolbar-theme + // pref. + mWindow.appearanceSource = MOZGlobalAppearance.sharedInstance; + } + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +nsresult nsCocoaWindow::CreatePopupContentView(const LayoutDeviceIntRect& aRect, + widget::InitData* aInitData) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + // We need to make our content view a ChildView. + mPopupContentView = new nsChildView(); + if (!mPopupContentView) return NS_ERROR_FAILURE; + + NS_ADDREF(mPopupContentView); + + nsIWidget* thisAsWidget = static_cast<nsIWidget*>(this); + nsresult rv = mPopupContentView->Create(thisAsWidget, nullptr, aRect, aInitData); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + NSView* contentView = [mWindow contentView]; + ChildView* childView = (ChildView*)mPopupContentView->GetNativeData(NS_NATIVE_WIDGET); + [childView setFrame:[contentView bounds]]; + [childView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable]; + [contentView addSubview:childView]; + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +void nsCocoaWindow::Destroy() { + if (mOnDestroyCalled) return; + mOnDestroyCalled = true; + + // SetFakeModal(true) is called for non-modal window opened by modal window. + // On Cocoa, it needs corresponding SetFakeModal(false) on destroy to restore + // ancestor windows' state. + if (mFakeModal) { + SetFakeModal(false); + } + + // If we don't hide here we run into problems with panels, this is not ideal. + // (Bug 891424) + Show(false); + + if (mPopupContentView) mPopupContentView->Destroy(); + + if (mFullscreenTransitionAnimation) { + [mFullscreenTransitionAnimation stopAnimation]; + ReleaseFullscreenTransitionAnimation(); + } + + nsBaseWidget::Destroy(); + // nsBaseWidget::Destroy() calls GetParent()->RemoveChild(this). But we + // don't implement GetParent(), so we need to do the equivalent here. + if (mParent) { + mParent->RemoveChild(this); + } + nsBaseWidget::OnDestroy(); + + if (mInFullScreenMode) { + // On Lion we don't have to mess with the OS chrome when in Full Screen + // mode. But we do have to destroy the native window here (and not wait + // for that to happen in our destructor). We don't switch away from the + // native window's space until the window is destroyed, and otherwise this + // might not happen for several seconds (because at least one object + // holding a reference to ourselves is usually waiting to be garbage- + // collected). See bug 757618. + if (mInNativeFullScreenMode) { + DestroyNativeWindow(); + } else if (mWindow) { + nsCocoaUtils::HideOSChromeOnScreen(false); + } + } +} + +nsIWidget* nsCocoaWindow::GetSheetWindowParent(void) { + if (mWindowType != WindowType::Sheet) return nullptr; + nsCocoaWindow* parent = static_cast<nsCocoaWindow*>(mParent); + while (parent && (parent->mWindowType == WindowType::Sheet)) + parent = static_cast<nsCocoaWindow*>(parent->mParent); + return parent; +} + +void* nsCocoaWindow::GetNativeData(uint32_t aDataType) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + void* retVal = nullptr; + + switch (aDataType) { + // to emulate how windows works, we always have to return a NSView + // for NS_NATIVE_WIDGET + case NS_NATIVE_WIDGET: + retVal = [mWindow contentView]; + break; + + case NS_NATIVE_WINDOW: + retVal = mWindow; + break; + + case NS_NATIVE_GRAPHIC: + // There isn't anything that makes sense to return here, + // and it doesn't matter so just return nullptr. + NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a top-level window!"); + break; + case NS_RAW_NATIVE_IME_CONTEXT: { + retVal = GetPseudoIMEContext(); + if (retVal) { + break; + } + NSView* view = mWindow ? [mWindow contentView] : nil; + if (view) { + retVal = [view inputContext]; + } + // If inputContext isn't available on this window, return this window's + // pointer 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; + } + } + + return retVal; + + NS_OBJC_END_TRY_BLOCK_RETURN(nullptr); +} + +bool nsCocoaWindow::IsVisible() const { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + return (mWindow && ([mWindow isVisibleOrBeingShown] || mSheetNeedsShow)); + + NS_OBJC_END_TRY_BLOCK_RETURN(false); +} + +void nsCocoaWindow::SetModal(bool aState) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) return; + + // This is used during startup (outside the event loop) when creating + // the add-ons compatibility checking dialog and the profile manager UI; + // therefore, it needs to provide an autorelease pool to avoid cocoa + // objects leaking. + nsAutoreleasePool localPool; + + mModal = aState; + nsCocoaWindow* ancestor = static_cast<nsCocoaWindow*>(mAncestorLink); + if (aState) { + ++gXULModalLevel; + // When a non-sheet window gets "set modal", make the window(s) that it + // appears over behave as they should. We can't rely on native methods to + // do this, for the following reason: The OS runs modal non-sheet windows + // in an event loop (using [NSApplication runModalForWindow:] or similar + // methods) that's incompatible with the modal event loop in AppWindow:: + // ShowModal() (each of these event loops is "exclusive", and can't run at + // the same time as other (similar) event loops). + if (mWindowType != WindowType::Sheet) { + while (ancestor) { + if (ancestor->mNumModalDescendents++ == 0) { + NSWindow* aWindow = ancestor->GetCocoaWindow(); + if (ancestor->mWindowType != WindowType::Invisible) { + [[aWindow standardWindowButton:NSWindowCloseButton] setEnabled:NO]; + [[aWindow standardWindowButton:NSWindowMiniaturizeButton] setEnabled:NO]; + [[aWindow standardWindowButton:NSWindowZoomButton] setEnabled:NO]; + } + } + ancestor = static_cast<nsCocoaWindow*>(ancestor->mParent); + } + [mWindow setLevel:NSModalPanelWindowLevel]; + nsCocoaWindowList* windowList = new nsCocoaWindowList; + if (windowList) { + windowList->window = this; // Don't ADDREF + windowList->prev = gGeckoAppModalWindowList; + gGeckoAppModalWindowList = windowList; + } + } + } else { + --gXULModalLevel; + NS_ASSERTION(gXULModalLevel >= 0, "Mismatched call to nsCocoaWindow::SetModal(false)!"); + if (mWindowType != WindowType::Sheet) { + while (ancestor) { + if (--ancestor->mNumModalDescendents == 0) { + NSWindow* aWindow = ancestor->GetCocoaWindow(); + if (ancestor->mWindowType != WindowType::Invisible) { + [[aWindow standardWindowButton:NSWindowCloseButton] setEnabled:YES]; + [[aWindow standardWindowButton:NSWindowMiniaturizeButton] setEnabled:YES]; + [[aWindow standardWindowButton:NSWindowZoomButton] setEnabled:YES]; + } + } + NS_ASSERTION(ancestor->mNumModalDescendents >= 0, "Widget hierarchy changed while modal!"); + ancestor = static_cast<nsCocoaWindow*>(ancestor->mParent); + } + if (gGeckoAppModalWindowList) { + NS_ASSERTION(gGeckoAppModalWindowList->window == this, + "Widget hierarchy changed while modal!"); + nsCocoaWindowList* saved = gGeckoAppModalWindowList; + gGeckoAppModalWindowList = gGeckoAppModalWindowList->prev; + delete saved; // "window" not ADDREFed + } + if (mWindowType == WindowType::Popup) + SetPopupWindowLevel(); + else + [mWindow setLevel:NSNormalWindowLevel]; + } + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetFakeModal(bool aState) { + mFakeModal = aState; + SetModal(aState); +} + +bool nsCocoaWindow::IsRunningAppModal() { return [NSApp _isRunningAppModal]; } + +// Hide or show this window +void nsCocoaWindow::Show(bool bState) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) return; + + if (!mSheetNeedsShow) { + // Early exit if our current visibility state is already the requested state. + if (bState == ([mWindow isVisible] || [mWindow isBeingShown])) { + return; + } + } + + [mWindow setBeingShown:bState]; + if (bState && !mWasShown) { + mWasShown = true; + } + + nsIWidget* parentWidget = mParent; + nsCOMPtr<nsPIWidgetCocoa> piParentWidget(do_QueryInterface(parentWidget)); + NSWindow* nativeParentWindow = + (parentWidget) ? (NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW) : nil; + + if (bState && !mBounds.IsEmpty()) { + // If we had set the activationPolicy to accessory, then right now we won't + // have a dock icon. Make sure that we undo that and show a dock icon now that + // we're going to show a window. + if ([NSApp activationPolicy] != NSApplicationActivationPolicyRegular) { + [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular]; + PR_SetEnv("MOZ_APP_NO_DOCK="); + } + + // Don't try to show a popup when the parent isn't visible or is minimized. + if (mWindowType == WindowType::Popup && nativeParentWindow) { + if (![nativeParentWindow isVisible] || [nativeParentWindow isMiniaturized]) { + return; + } + } + + if (mPopupContentView) { + // Ensure our content view is visible. We never need to hide it. + mPopupContentView->Show(true); + } + + if (mWindowType == WindowType::Sheet) { + // bail if no parent window (its basically what we do in Carbon) + if (!nativeParentWindow || !piParentWidget) return; + + NSWindow* topNonSheetWindow = nativeParentWindow; + + // If this sheet is the child of another sheet, hide the parent so that + // this sheet can be displayed. Leave the parent mSheetNeedsShow alone, + // that is only used to handle sibling sheet contention. The parent will + // return once there are no more child sheets. + bool parentIsSheet = false; + if (NS_SUCCEEDED(piParentWidget->GetIsSheet(&parentIsSheet)) && parentIsSheet) { + piParentWidget->GetSheetWindowParent(&topNonSheetWindow); +#ifdef MOZ_THUNDERBIRD + [NSApp endSheet:nativeParentWindow]; +#else + [nativeParentWindow.sheetParent endSheet:nativeParentWindow]; +#endif + } + + nsCOMPtr<nsIWidget> sheetShown; + if (NS_SUCCEEDED(piParentWidget->GetChildSheet(true, getter_AddRefs(sheetShown))) && + (!sheetShown || sheetShown == this)) { + // If this sheet is already the sheet actually being shown, don't + // tell it to show again. Otherwise the number of calls to +#ifdef MOZ_THUNDERBIRD + // [NSApp beginSheet...] won't match up with [NSApp endSheet...]. +#else + // [NSWindow beginSheet...] won't match up with [NSWindow endSheet...]. +#endif + if (![mWindow isVisible]) { + mSheetNeedsShow = false; + mSheetWindowParent = topNonSheetWindow; +#ifdef MOZ_THUNDERBIRD + // Only set contextInfo if our parent isn't a sheet. + NSWindow* contextInfo = parentIsSheet ? nil : mSheetWindowParent; + [TopLevelWindowData deactivateInWindow:mSheetWindowParent]; + [NSApp beginSheet:mWindow + modalForWindow:mSheetWindowParent + modalDelegate:mDelegate + didEndSelector:@selector(didEndSheet:returnCode:contextInfo:) + contextInfo:contextInfo]; +#else + NSWindow* sheet = mWindow; + NSWindow* nonSheetParent = parentIsSheet ? nil : mSheetWindowParent; + [TopLevelWindowData deactivateInWindow:mSheetWindowParent]; + [mSheetWindowParent beginSheet:sheet + completionHandler:^(NSModalResponse returnCode) { + // Note: 'nonSheetParent' (if it is set) is the window that is the parent + // of the sheet. If it's set, 'nonSheetParent' is always the top- level + // window, not another sheet itself. But 'nonSheetParent' is nil if our + // parent window is also a sheet -- in that case we shouldn't send the + // top-level window any activate events (because it's our parent window + // that needs to get these events, not the top-level window). + [TopLevelWindowData deactivateInWindow:sheet]; + [sheet orderOut:nil]; + if (nonSheetParent) { + [TopLevelWindowData activateInWindow:nonSheetParent]; + } + }]; +#endif + [TopLevelWindowData activateInWindow:mWindow]; + SendSetZLevelEvent(); + } + } else { + // A sibling of this sheet is active, don't show this sheet yet. + // When the active sheet hides, its brothers and sisters that have + // mSheetNeedsShow set will have their opportunities to display. + mSheetNeedsShow = true; + } + } else if (mWindowType == WindowType::Popup) { + // For reasons that aren't yet clear, calls to [NSWindow orderFront:] or + // [NSWindow makeKeyAndOrderFront:] can sometimes trigger "Error (1000) + // creating CGSWindow", which in turn triggers an internal inconsistency + // NSException. These errors shouldn't be fatal. So we need to wrap + // calls to ...orderFront: in TRY blocks. See bmo bug 470864. + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + [[mWindow contentView] setNeedsDisplay:YES]; + [mWindow orderFront:nil]; + NS_OBJC_END_TRY_IGNORE_BLOCK; + SendSetZLevelEvent(); + // If our popup window is a non-native context menu, tell the OS (and + // other programs) that a menu has opened. This is how the OS knows to + // close other programs' context menus when ours open. + if ([mWindow isKindOfClass:[PopupWindow class]] && [(PopupWindow*)mWindow isContextMenu]) { + [[NSDistributedNotificationCenter defaultCenter] + postNotificationName:@"com.apple.HIToolbox.beginMenuTrackingNotification" + object:@"org.mozilla.gecko.PopupWindow"]; + } + + // If a parent window was supplied and this is a popup at the parent + // level, set its child window. This will cause the child window to + // appear above the parent and move when the parent does. Setting this + // needs to happen after the _setWindowNumber calls above, otherwise the + // window doesn't focus properly. + if (nativeParentWindow && mPopupLevel == PopupLevel::Parent) + [nativeParentWindow addChildWindow:mWindow ordered:NSWindowAbove]; + } else { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + if (mWindowType == WindowType::TopLevel && + [mWindow respondsToSelector:@selector(setAnimationBehavior:)]) { + NSWindowAnimationBehavior behavior; + if (mIsAnimationSuppressed) { + behavior = NSWindowAnimationBehaviorNone; + } else { + switch (mAnimationType) { + case nsIWidget::eDocumentWindowAnimation: + behavior = NSWindowAnimationBehaviorDocumentWindow; + break; + default: + MOZ_FALLTHROUGH_ASSERT("unexpected mAnimationType value"); + case nsIWidget::eGenericWindowAnimation: + behavior = NSWindowAnimationBehaviorDefault; + break; + } + } + [mWindow setAnimationBehavior:behavior]; + mWindowAnimationBehavior = behavior; + } + + // We don't want alwaysontop windows to pull focus when they're opened, + // as these tend to be for peripheral indicators and displays. + if (mAlwaysOnTop) { + [mWindow orderFront:nil]; + } else { + [mWindow makeKeyAndOrderFront:nil]; + } + NS_OBJC_END_TRY_IGNORE_BLOCK; + SendSetZLevelEvent(); + } + } else { + // roll up any popups if a top-level window is going away + if (mWindowType == WindowType::TopLevel || mWindowType == WindowType::Dialog) { + RollUpPopups(); + } + + // now get rid of the window/sheet + if (mWindowType == WindowType::Sheet) { + if (mSheetNeedsShow) { + // This is an attempt to hide a sheet that never had a chance to + // be shown. There's nothing to do other than make sure that it + // won't show. + mSheetNeedsShow = false; + } else { + // get sheet's parent *before* hiding the sheet (which breaks the linkage) + NSWindow* sheetParent = mSheetWindowParent; + + // hide the sheet +#ifdef MOZ_THUNDERBIRD + [NSApp endSheet:mWindow]; +#else + [mSheetWindowParent endSheet:mWindow]; +#endif + [TopLevelWindowData deactivateInWindow:mWindow]; + + nsCOMPtr<nsIWidget> siblingSheetToShow; + bool parentIsSheet = false; + + if (nativeParentWindow && piParentWidget && + NS_SUCCEEDED( + piParentWidget->GetChildSheet(false, getter_AddRefs(siblingSheetToShow))) && + siblingSheetToShow) { + // First, give sibling sheets an opportunity to show. + siblingSheetToShow->Show(true); + } else if (nativeParentWindow && piParentWidget && + NS_SUCCEEDED(piParentWidget->GetIsSheet(&parentIsSheet)) && parentIsSheet) { +#ifdef MOZ_THUNDERBIRD + // Only set contextInfo if the parent of the parent sheet we're about + // to restore isn't itself a sheet. + NSWindow* contextInfo = sheetParent; +#else + // Only set nonSheetGrandparent if the parent of the parent sheet we're about + // to restore isn't itself a sheet. + NSWindow* nonSheetGrandparent = sheetParent; +#endif + nsIWidget* grandparentWidget = nil; + if (NS_SUCCEEDED(piParentWidget->GetRealParent(&grandparentWidget)) && + grandparentWidget) { + nsCOMPtr<nsPIWidgetCocoa> piGrandparentWidget(do_QueryInterface(grandparentWidget)); + bool grandparentIsSheet = false; + if (piGrandparentWidget && + NS_SUCCEEDED(piGrandparentWidget->GetIsSheet(&grandparentIsSheet)) && + grandparentIsSheet) { +#ifdef MOZ_THUNDERBIRD + contextInfo = nil; +#else + nonSheetGrandparent = nil; +#endif + } + } + // If there are no sibling sheets, but the parent is a sheet, restore + // it. It wasn't sent any deactivate events when it was hidden, so + // don't call through Show, just let the OS put it back up. +#ifdef MOZ_THUNDERBIRD + [NSApp beginSheet:nativeParentWindow + modalForWindow:sheetParent + modalDelegate:[nativeParentWindow delegate] + didEndSelector:@selector(didEndSheet:returnCode:contextInfo:) + contextInfo:contextInfo]; +#else + [nativeParentWindow beginSheet:sheetParent + completionHandler:^(NSModalResponse returnCode) { + // Note: 'nonSheetGrandparent' (if it is set) is the window that is the + // parent of sheetParent. If it's set, 'nonSheetGrandparent' is always the + // top-level window, not another sheet itself. But 'nonSheetGrandparent' + // is nil if our parent window is also a sheet -- in that case we shouldn't + // send the top-level window any activate events (because it's our parent + // window that needs to get these events, not the top-level window). + [TopLevelWindowData deactivateInWindow:sheetParent]; + [sheetParent orderOut:nil]; + if (nonSheetGrandparent) { + [TopLevelWindowData activateInWindow:nonSheetGrandparent]; + } + }]; +#endif + } else { + // Sheet, that was hard. No more siblings or parents, going back + // to a real window. + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + [sheetParent makeKeyAndOrderFront:nil]; + NS_OBJC_END_TRY_IGNORE_BLOCK; + } + SendSetZLevelEvent(); + } + } else { + // If the window is a popup window with a parent window we need to + // unhook it here before ordering it out. When you order out the child + // of a window it hides the parent window. + if (mWindowType == WindowType::Popup && nativeParentWindow) + [nativeParentWindow removeChildWindow:mWindow]; + + [mWindow orderOut:nil]; + + // If our popup window is a non-native context menu, tell the OS (and + // other programs) that a menu has closed. + if ([mWindow isKindOfClass:[PopupWindow class]] && [(PopupWindow*)mWindow isContextMenu]) { + [[NSDistributedNotificationCenter defaultCenter] + postNotificationName:@"com.apple.HIToolbox.endMenuTrackingNotification" + object:@"org.mozilla.gecko.PopupWindow"]; + } + } + } + + [mWindow setBeingShown:NO]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// Work around a problem where with multiple displays and multiple spaces +// enabled, where the browser is assigned to a single display or space, popup +// windows that are reshown after being hidden with [NSWindow orderOut] show on +// the assigned space even when opened from another display. Apply the +// workaround whenever more than one display is enabled. +bool nsCocoaWindow::NeedsRecreateToReshow() { + // Limit the workaround to popup windows because only they need to override + // the "Assign To" setting. i.e., to display where the parent window is. + return (mWindowType == WindowType::Popup) && mWasShown && ([[NSScreen screens] count] > 1); +} + +WindowRenderer* nsCocoaWindow::GetWindowRenderer() { + if (mPopupContentView) { + return mPopupContentView->GetWindowRenderer(); + } + return nullptr; +} + +TransparencyMode nsCocoaWindow::GetTransparencyMode() { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + return (!mWindow || [mWindow isOpaque]) ? TransparencyMode::Opaque + : TransparencyMode::Transparent; + + NS_OBJC_END_TRY_BLOCK_RETURN(TransparencyMode::Opaque); +} + +// This is called from nsMenuPopupFrame when making a popup transparent. +void nsCocoaWindow::SetTransparencyMode(TransparencyMode aMode) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // Only respect calls for popup windows. + if (!mWindow || mWindowType != WindowType::Popup) { + return; + } + + BOOL isTransparent = aMode == TransparencyMode::Transparent; + BOOL currentTransparency = ![mWindow isOpaque]; + if (isTransparent != currentTransparency) { + [mWindow setOpaque:!isTransparent]; + [mWindow setBackgroundColor:(isTransparent ? [NSColor clearColor] : [NSColor whiteColor])]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::Enable(bool aState) {} + +bool nsCocoaWindow::IsEnabled() const { return true; } + +void nsCocoaWindow::ConstrainPosition(DesktopIntPoint& aPoint) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow || ![mWindow screen]) { + return; + } + + nsIntRect screenBounds; + + int32_t width, height; + + NSRect frame = [mWindow frame]; + + // zero size rects confuse the screen manager + width = std::max<int32_t>(frame.size.width, 1); + height = std::max<int32_t>(frame.size.height, 1); + + nsCOMPtr<nsIScreenManager> screenMgr = do_GetService("@mozilla.org/gfx/screenmanager;1"); + if (screenMgr) { + nsCOMPtr<nsIScreen> screen; + screenMgr->ScreenForRect(aPoint.x, aPoint.y, width, height, getter_AddRefs(screen)); + + if (screen) { + screen->GetRectDisplayPix(&(screenBounds.x), &(screenBounds.y), &(screenBounds.width), + &(screenBounds.height)); + } + } + + if (aPoint.x < screenBounds.x) { + aPoint.x = screenBounds.x; + } else if (aPoint.x >= screenBounds.x + screenBounds.width - width) { + aPoint.x = screenBounds.x + screenBounds.width - width; + } + + if (aPoint.y < screenBounds.y) { + aPoint.y = screenBounds.y; + } else if (aPoint.y >= screenBounds.y + screenBounds.height - height) { + aPoint.y = screenBounds.y + screenBounds.height - height; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetSizeConstraints(const SizeConstraints& aConstraints) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // Popups can be smaller than (32, 32) + NSRect rect = (mWindowType == WindowType::Popup) ? NSZeroRect : NSMakeRect(0.0, 0.0, 32, 32); + rect = [mWindow frameRectForChildViewRect:rect]; + + SizeConstraints c = aConstraints; + + if (c.mScale.scale == MOZ_WIDGET_INVALID_SCALE) { + c.mScale.scale = BackingScaleFactor(); + } + + c.mMinSize.width = std::max(nsCocoaUtils::CocoaPointsToDevPixels(rect.size.width, c.mScale.scale), + c.mMinSize.width); + c.mMinSize.height = std::max( + nsCocoaUtils::CocoaPointsToDevPixels(rect.size.height, c.mScale.scale), c.mMinSize.height); + + NSSize minSize = {nsCocoaUtils::DevPixelsToCocoaPoints(c.mMinSize.width, c.mScale.scale), + nsCocoaUtils::DevPixelsToCocoaPoints(c.mMinSize.height, c.mScale.scale)}; + [mWindow setMinSize:minSize]; + + c.mMaxSize.width = std::max( + nsCocoaUtils::CocoaPointsToDevPixels(c.mMaxSize.width, c.mScale.scale), c.mMaxSize.width); + c.mMaxSize.height = std::max( + nsCocoaUtils::CocoaPointsToDevPixels(c.mMaxSize.height, c.mScale.scale), c.mMaxSize.height); + + NSSize maxSize = {c.mMaxSize.width == NS_MAXSIZE + ? FLT_MAX + : nsCocoaUtils::DevPixelsToCocoaPoints(c.mMaxSize.width, c.mScale.scale), + c.mMaxSize.height == NS_MAXSIZE + ? FLT_MAX + : nsCocoaUtils::DevPixelsToCocoaPoints(c.mMaxSize.height, c.mScale.scale)}; + [mWindow setMaxSize:maxSize]; + + nsBaseWidget::SetSizeConstraints(c); + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// Coordinates are desktop pixels +void nsCocoaWindow::Move(double aX, double aY) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) { + return; + } + + // The point we have is in Gecko coordinates (origin top-left). Convert + // it to Cocoa ones (origin bottom-left). + NSPoint coord = {static_cast<float>(aX), + static_cast<float>(nsCocoaUtils::FlippedScreenY(NSToIntRound(aY)))}; + + NSRect frame = [mWindow frame]; + if (frame.origin.x != coord.x || frame.origin.y + frame.size.height != coord.y) { + [mWindow setFrameTopLeftPoint:coord]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetSizeMode(nsSizeMode aMode) { + if (aMode == nsSizeMode_Normal) { + QueueTransition(TransitionType::Windowed); + } else if (aMode == nsSizeMode_Minimized) { + QueueTransition(TransitionType::Miniaturize); + } else if (aMode == nsSizeMode_Maximized) { + QueueTransition(TransitionType::Zoom); + } else if (aMode == nsSizeMode_Fullscreen) { + MakeFullScreen(true); + } +} + +// The (work)space switching implementation below was inspired by Phoenix: +// https://github.com/kasper/phoenix/tree/d6c877f62b30a060dff119d8416b0934f76af534 +// License: MIT. + +// Runtime `CGSGetActiveSpace` library function feature detection. +typedef CGSSpaceID (*CGSGetActiveSpaceFunc)(CGSConnection cid); +static CGSGetActiveSpaceFunc GetCGSGetActiveSpaceFunc() { + static CGSGetActiveSpaceFunc func = nullptr; + static bool lookedUpFunc = false; + if (!lookedUpFunc) { + func = (CGSGetActiveSpaceFunc)dlsym(RTLD_DEFAULT, "CGSGetActiveSpace"); + lookedUpFunc = true; + } + return func; +} +// Runtime `CGSCopyManagedDisplaySpaces` library function feature detection. +typedef CFArrayRef (*CGSCopyManagedDisplaySpacesFunc)(CGSConnection cid); +static CGSCopyManagedDisplaySpacesFunc GetCGSCopyManagedDisplaySpacesFunc() { + static CGSCopyManagedDisplaySpacesFunc func = nullptr; + static bool lookedUpFunc = false; + if (!lookedUpFunc) { + func = (CGSCopyManagedDisplaySpacesFunc)dlsym(RTLD_DEFAULT, "CGSCopyManagedDisplaySpaces"); + lookedUpFunc = true; + } + return func; +} +// Runtime `CGSCopySpacesForWindows` library function feature detection. +typedef CFArrayRef (*CGSCopySpacesForWindowsFunc)(CGSConnection cid, CGSSpaceMask mask, + CFArrayRef windowIDs); +static CGSCopySpacesForWindowsFunc GetCGSCopySpacesForWindowsFunc() { + static CGSCopySpacesForWindowsFunc func = nullptr; + static bool lookedUpFunc = false; + if (!lookedUpFunc) { + func = (CGSCopySpacesForWindowsFunc)dlsym(RTLD_DEFAULT, "CGSCopySpacesForWindows"); + lookedUpFunc = true; + } + return func; +} +// Runtime `CGSAddWindowsToSpaces` library function feature detection. +typedef void (*CGSAddWindowsToSpacesFunc)(CGSConnection cid, CFArrayRef windowIDs, + CFArrayRef spaceIDs); +static CGSAddWindowsToSpacesFunc GetCGSAddWindowsToSpacesFunc() { + static CGSAddWindowsToSpacesFunc func = nullptr; + static bool lookedUpFunc = false; + if (!lookedUpFunc) { + func = (CGSAddWindowsToSpacesFunc)dlsym(RTLD_DEFAULT, "CGSAddWindowsToSpaces"); + lookedUpFunc = true; + } + return func; +} +// Runtime `CGSRemoveWindowsFromSpaces` library function feature detection. +typedef void (*CGSRemoveWindowsFromSpacesFunc)(CGSConnection cid, CFArrayRef windowIDs, + CFArrayRef spaceIDs); +static CGSRemoveWindowsFromSpacesFunc GetCGSRemoveWindowsFromSpacesFunc() { + static CGSRemoveWindowsFromSpacesFunc func = nullptr; + static bool lookedUpFunc = false; + if (!lookedUpFunc) { + func = (CGSRemoveWindowsFromSpacesFunc)dlsym(RTLD_DEFAULT, "CGSRemoveWindowsFromSpaces"); + lookedUpFunc = true; + } + return func; +} + +void nsCocoaWindow::GetWorkspaceID(nsAString& workspaceID) { + workspaceID.Truncate(); + int32_t sid = GetWorkspaceID(); + if (sid != 0) { + workspaceID.AppendInt(sid); + } +} + +int32_t nsCocoaWindow::GetWorkspaceID() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // Mac OSX space IDs start at '1' (default space), so '0' means 'unknown', + // effectively. + CGSSpaceID sid = 0; + + CGSCopySpacesForWindowsFunc CopySpacesForWindows = GetCGSCopySpacesForWindowsFunc(); + if (!CopySpacesForWindows) { + return sid; + } + + CGSConnection cid = _CGSDefaultConnection(); + // Fetch all spaces that this window belongs to (in order). + NSArray<NSNumber*>* spaceIDs = CFBridgingRelease(CopySpacesForWindows( + cid, kCGSAllSpacesMask, (__bridge CFArrayRef) @[ @([mWindow windowNumber]) ])); + if ([spaceIDs count]) { + // When spaces are found, return the first one. + // We don't support a single window painted across multiple places for now. + sid = [spaceIDs[0] integerValue]; + } else { + // Fall back to the workspace that's currently active, which is '1' in the + // common case. + CGSGetActiveSpaceFunc GetActiveSpace = GetCGSGetActiveSpaceFunc(); + if (GetActiveSpace) { + sid = GetActiveSpace(cid); + } + } + + return sid; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::MoveToWorkspace(const nsAString& workspaceIDStr) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if ([NSScreen screensHaveSeparateSpaces] && [[NSScreen screens] count] > 1) { + // We don't support moving to a workspace when the user has this option + // enabled in Mission Control. + return; + } + + nsresult rv = NS_OK; + int32_t workspaceID = workspaceIDStr.ToInteger(&rv); + if (NS_FAILED(rv)) { + return; + } + + CGSConnection cid = _CGSDefaultConnection(); + int32_t currentSpace = GetWorkspaceID(); + // If an empty workspace ID is passed in (not valid on OSX), or when the + // window is already on this workspace, we don't need to do anything. + if (!workspaceID || workspaceID == currentSpace) { + return; + } + + CGSCopyManagedDisplaySpacesFunc CopyManagedDisplaySpaces = GetCGSCopyManagedDisplaySpacesFunc(); + CGSAddWindowsToSpacesFunc AddWindowsToSpaces = GetCGSAddWindowsToSpacesFunc(); + CGSRemoveWindowsFromSpacesFunc RemoveWindowsFromSpaces = GetCGSRemoveWindowsFromSpacesFunc(); + if (!CopyManagedDisplaySpaces || !AddWindowsToSpaces || !RemoveWindowsFromSpaces) { + return; + } + + // Fetch an ordered list of all known spaces. + NSArray* displaySpacesInfo = CFBridgingRelease(CopyManagedDisplaySpaces(cid)); + // When we found the space we're looking for, we can bail out of the loop + // early, which this local variable is used for. + BOOL found = false; + for (NSDictionary<NSString*, id>* spacesInfo in displaySpacesInfo) { + NSArray<NSNumber*>* sids = [spacesInfo[CGSSpacesKey] valueForKey:CGSSpaceIDKey]; + for (NSNumber* sid in sids) { + // If we found our space in the list, we're good to go and can jump out of + // this loop. + if ((int)[sid integerValue] == workspaceID) { + found = true; + break; + } + } + if (found) { + break; + } + } + + // We were unable to find the space to correspond with the workspaceID as + // requested, so let's bail out. + if (!found) { + return; + } + + // First we add the window to the appropriate space. + AddWindowsToSpaces(cid, (__bridge CFArrayRef) @[ @([mWindow windowNumber]) ], + (__bridge CFArrayRef) @[ @(workspaceID) ]); + // Then we remove the window from the active space. + RemoveWindowsFromSpaces(cid, (__bridge CFArrayRef) @[ @([mWindow windowNumber]) ], + (__bridge CFArrayRef) @[ @(currentSpace) ]); + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SuppressAnimation(bool aSuppress) { + if ([mWindow respondsToSelector:@selector(setAnimationBehavior:)]) { + if (aSuppress) { + [mWindow setIsAnimationSuppressed:YES]; + [mWindow setAnimationBehavior:NSWindowAnimationBehaviorNone]; + } else { + [mWindow setIsAnimationSuppressed:NO]; + [mWindow setAnimationBehavior:mWindowAnimationBehavior]; + } + } +} + +// This has to preserve the window's frame bounds. +// This method requires (as does the Windows impl.) that you call Resize shortly +// after calling HideWindowChrome. See bug 498835 for fixing this. +void nsCocoaWindow::HideWindowChrome(bool aShouldHide) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow || !mWindowMadeHere || + (mWindowType != WindowType::TopLevel && mWindowType != WindowType::Dialog)) + return; + + BOOL isVisible = [mWindow isVisible]; + + // Remove child windows. + NSArray* childWindows = [mWindow childWindows]; + NSEnumerator* enumerator = [childWindows objectEnumerator]; + NSWindow* child = nil; + while ((child = [enumerator nextObject])) { + [mWindow removeChildWindow:child]; + } + + // Remove the views in the old window's content view. + // The NSArray is autoreleased and retains its NSViews. + NSArray<NSView*>* contentViewContents = [mWindow contentViewContents]; + for (NSView* view in contentViewContents) { + [view removeFromSuperviewWithoutNeedingDisplay]; + } + + // Save state (like window title). + NSMutableDictionary* state = [mWindow exportState]; + + // Recreate the window with the right border style. + NSRect frameRect = [mWindow frame]; + DestroyNativeWindow(); + nsresult rv = CreateNativeWindow(frameRect, aShouldHide ? BorderStyle::None : mBorderStyle, true, + mWindow.restorable); + NS_ENSURE_SUCCESS_VOID(rv); + + // Re-import state. + [mWindow importState:state]; + + // Add the old content view subviews to the new window's content view. + for (NSView* view in contentViewContents) { + [[mWindow contentView] addSubview:view]; + } + + // Reparent child windows. + enumerator = [childWindows objectEnumerator]; + while ((child = [enumerator nextObject])) { + [mWindow addChildWindow:child ordered:NSWindowAbove]; + } + + // Show the new window. + if (isVisible) { + bool wasAnimationSuppressed = mIsAnimationSuppressed; + mIsAnimationSuppressed = true; + Show(true); + mIsAnimationSuppressed = wasAnimationSuppressed; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +class FullscreenTransitionData : public nsISupports { + public: + NS_DECL_ISUPPORTS + + explicit FullscreenTransitionData(NSWindow* aWindow) : mTransitionWindow(aWindow) {} + + NSWindow* mTransitionWindow; + + private: + virtual ~FullscreenTransitionData() { [mTransitionWindow close]; } +}; + +NS_IMPL_ISUPPORTS0(FullscreenTransitionData) + +@interface FullscreenTransitionDelegate : NSObject <NSAnimationDelegate> { + @public + nsCocoaWindow* mWindow; + nsIRunnable* mCallback; +} +@end + +@implementation FullscreenTransitionDelegate +- (void)cleanupAndDispatch:(NSAnimation*)animation { + [animation setDelegate:nil]; + [self autorelease]; + // The caller should have added ref for us. + NS_DispatchToMainThread(already_AddRefed<nsIRunnable>(mCallback)); +} + +- (void)animationDidEnd:(NSAnimation*)animation { + MOZ_ASSERT(animation == mWindow->FullscreenTransitionAnimation(), + "Should be handling the only animation on the window"); + mWindow->ReleaseFullscreenTransitionAnimation(); + [self cleanupAndDispatch:animation]; +} + +- (void)animationDidStop:(NSAnimation*)animation { + [self cleanupAndDispatch:animation]; +} +@end + +static bool AlwaysUsesNativeFullScreen() { + return Preferences::GetBool("full-screen-api.macos-native-full-screen", false); +} + +/* virtual */ bool nsCocoaWindow::PrepareForFullscreenTransition(nsISupports** aData) { + if (AlwaysUsesNativeFullScreen()) { + return false; + } + + // Our fullscreen transition creates a new window occluding this window. + // That triggers an occlusion event which can cause DOM fullscreen requests + // to fail due to the context not being focused at the time the focus check + // is performed in the child process. Until the transition is cleaned up in + // CleanupFullscreenTransition(), ignore occlusion events for this window. + // If this method is changed to return false, the transition will not be + // performed and mIgnoreOcclusionCount should not be incremented. + MOZ_ASSERT(mIgnoreOcclusionCount >= 0); + mIgnoreOcclusionCount++; + + nsCOMPtr<nsIScreen> widgetScreen = GetWidgetScreen(); + NSScreen* cocoaScreen = ScreenHelperCocoa::CocoaScreenForScreen(widgetScreen); + + NSWindow* win = [[NSWindow alloc] initWithContentRect:[cocoaScreen frame] + styleMask:NSWindowStyleMaskBorderless + backing:NSBackingStoreBuffered + defer:YES]; + [win setBackgroundColor:[NSColor blackColor]]; + [win setAlphaValue:0]; + [win setIgnoresMouseEvents:YES]; + [win setLevel:NSScreenSaverWindowLevel]; + [win makeKeyAndOrderFront:nil]; + + auto data = new FullscreenTransitionData(win); + *aData = data; + NS_ADDREF(data); + return true; +} + +/* virtual */ void nsCocoaWindow::CleanupFullscreenTransition() { + MOZ_ASSERT(mIgnoreOcclusionCount > 0); + mIgnoreOcclusionCount--; +} + +/* virtual */ void nsCocoaWindow::PerformFullscreenTransition(FullscreenTransitionStage aStage, + uint16_t aDuration, + nsISupports* aData, + nsIRunnable* aCallback) { + auto data = static_cast<FullscreenTransitionData*>(aData); + FullscreenTransitionDelegate* delegate = [[FullscreenTransitionDelegate alloc] init]; + delegate->mWindow = this; + // Storing already_AddRefed directly could cause static checking fail. + delegate->mCallback = nsCOMPtr<nsIRunnable>(aCallback).forget().take(); + + if (mFullscreenTransitionAnimation) { + [mFullscreenTransitionAnimation stopAnimation]; + ReleaseFullscreenTransitionAnimation(); + } + + NSDictionary* dict = @{ + NSViewAnimationTargetKey : data->mTransitionWindow, + NSViewAnimationEffectKey : aStage == eBeforeFullscreenToggle ? NSViewAnimationFadeInEffect + : NSViewAnimationFadeOutEffect + }; + mFullscreenTransitionAnimation = [[NSViewAnimation alloc] initWithViewAnimations:@[ dict ]]; + [mFullscreenTransitionAnimation setDelegate:delegate]; + [mFullscreenTransitionAnimation setDuration:aDuration / 1000.0]; + [mFullscreenTransitionAnimation startAnimation]; +} + +void nsCocoaWindow::CocoaWindowWillEnterFullscreen(bool aFullscreen) { + MOZ_ASSERT(mUpdateFullscreenOnResize.isNothing()); + + mHasStartedNativeFullscreen = true; + + // Ensure that we update our fullscreen state as early as possible, when the resize + // happens. + mUpdateFullscreenOnResize = + Some(aFullscreen ? TransitionType::Fullscreen : TransitionType::Windowed); +} + +void nsCocoaWindow::CocoaWindowDidEnterFullscreen(bool aFullscreen) { + mHasStartedNativeFullscreen = false; + DispatchOcclusionEvent(); + HandleUpdateFullscreenOnResize(); + FinishCurrentTransitionIfMatching(aFullscreen ? TransitionType::Fullscreen + : TransitionType::Windowed); +} + +void nsCocoaWindow::CocoaWindowDidFailFullscreen(bool aAttemptedFullscreen) { + mHasStartedNativeFullscreen = false; + DispatchOcclusionEvent(); + + // If we already updated our fullscreen state due to a resize, we need to update it again. + if (mUpdateFullscreenOnResize.isNothing()) { + UpdateFullscreenState(!aAttemptedFullscreen, true); + ReportSizeEvent(); + } + + TransitionType transition = + aAttemptedFullscreen ? TransitionType::Fullscreen : TransitionType::Windowed; + FinishCurrentTransitionIfMatching(transition); +} + +void nsCocoaWindow::UpdateFullscreenState(bool aFullScreen, bool aNativeMode) { + bool wasInFullscreen = mInFullScreenMode; + mInFullScreenMode = aFullScreen; + if (aNativeMode || mInNativeFullScreenMode) { + mInNativeFullScreenMode = aFullScreen; + } + + if (aFullScreen == wasInFullscreen) { + return; + } + + DispatchSizeModeEvent(); + + // Notify the mainChildView with our new fullscreen state. + nsChildView* mainChildView = static_cast<nsChildView*>([[mWindow mainChildView] widget]); + if (mainChildView) { + mainChildView->UpdateFullscreen(aFullScreen); + } +} + +nsresult nsCocoaWindow::MakeFullScreen(bool aFullScreen) { + return DoMakeFullScreen(aFullScreen, AlwaysUsesNativeFullScreen()); +} + +nsresult nsCocoaWindow::MakeFullScreenWithNativeTransition(bool aFullScreen) { + return DoMakeFullScreen(aFullScreen, true); +} + +nsresult nsCocoaWindow::DoMakeFullScreen(bool aFullScreen, bool aUseSystemTransition) { + if (!mWindow) { + return NS_OK; + } + + // Figure out what type of transition is being requested. + TransitionType transition = TransitionType::Windowed; + if (aFullScreen) { + // Decide whether to use fullscreen or emulated fullscreen. + transition = (aUseSystemTransition && + (mWindow.collectionBehavior & NSWindowCollectionBehaviorFullScreenPrimary)) + ? TransitionType::Fullscreen + : TransitionType::EmulatedFullscreen; + } + + QueueTransition(transition); + return NS_OK; +} + +void nsCocoaWindow::QueueTransition(const TransitionType& aTransition) { + mTransitionsPending.push(aTransition); + ProcessTransitions(); +} + +void nsCocoaWindow::ProcessTransitions() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK + + if (mInProcessTransitions) { + return; + } + + mInProcessTransitions = true; + + // Start a loop that will continue as long as we have transitions to process + // and we aren't waiting on an asynchronous transition to complete. Any + // transition that starts something async will `continue` this loop to exit. + while (!mTransitionsPending.empty() && !IsInTransition()) { + TransitionType nextTransition = mTransitionsPending.front(); + + // We have to check for some incompatible transition states, and if we find one, + // instead perform an alternative transition and leave the queue untouched. If + // we add one of these transitions, we set mIsTransitionCurrentAdded because we + // don't want to confuse listeners who are expecting to receive exactly one + // event when the requested transition has completed. + switch (nextTransition) { + case TransitionType::Fullscreen: + case TransitionType::EmulatedFullscreen: + case TransitionType::Windowed: + case TransitionType::Zoom: + // These can't handle miniaturized windows, so deminiaturize first. + if (mWindow.miniaturized) { + mTransitionCurrent = Some(TransitionType::Deminiaturize); + mIsTransitionCurrentAdded = true; + } + break; + case TransitionType::Miniaturize: + // This can't handle fullscreen, so go to windowed first. + if (mInFullScreenMode) { + mTransitionCurrent = Some(TransitionType::Windowed); + mIsTransitionCurrentAdded = true; + } + break; + default: + break; + } + + // If mTransitionCurrent is still empty, then we use the nextTransition and pop + // the queue. + if (mTransitionCurrent.isNothing()) { + mTransitionCurrent = Some(nextTransition); + mTransitionsPending.pop(); + } + + switch (*mTransitionCurrent) { + case TransitionType::Fullscreen: { + if (!mInFullScreenMode) { + // This triggers an async animation, so continue. + [mWindow toggleFullScreen:nil]; + continue; + } + break; + } + + case TransitionType::EmulatedFullscreen: { + if (!mInFullScreenMode) { + NSDisableScreenUpdates(); + mSuppressSizeModeEvents = true; + // The order here matters. When we exit full screen mode, we need to show the + // Dock first, otherwise the newly-created window won't have its minimize + // button enabled. See bug 526282. + nsCocoaUtils::HideOSChromeOnScreen(true); + nsBaseWidget::InfallibleMakeFullScreen(true); + mSuppressSizeModeEvents = false; + NSEnableScreenUpdates(); + UpdateFullscreenState(true, false); + } + break; + } + + case TransitionType::Windowed: { + if (mInFullScreenMode) { + if (mInNativeFullScreenMode) { + // This triggers an async animation, so continue. + [mWindow toggleFullScreen:nil]; + continue; + } else { + NSDisableScreenUpdates(); + mSuppressSizeModeEvents = true; + // The order here matters. When we exit full screen mode, we need to show the + // Dock first, otherwise the newly-created window won't have its minimize + // button enabled. See bug 526282. + nsCocoaUtils::HideOSChromeOnScreen(false); + nsBaseWidget::InfallibleMakeFullScreen(false); + mSuppressSizeModeEvents = false; + NSEnableScreenUpdates(); + UpdateFullscreenState(false, false); + } + } else if (mWindow.zoomed) { + [mWindow zoom:nil]; + + // Check if we're still zoomed. If we are, we need to do *something* to make the + // window smaller than the zoom size so Cocoa will treat us as being out of the + // zoomed state. Otherwise, we could stay zoomed and never be able to be "normal" + // from calls to SetSizeMode. + if (mWindow.zoomed) { + NSRect maximumFrame = mWindow.frame; + const CGFloat INSET_OUT_OF_ZOOM = 20.0f; + [mWindow setFrame:NSInsetRect(maximumFrame, INSET_OUT_OF_ZOOM, INSET_OUT_OF_ZOOM) + display:YES]; + MOZ_ASSERT(!mWindow.zoomed, + "We should be able to unzoom by shrinking the frame a bit."); + } + } + break; + } + + case TransitionType::Miniaturize: + if (!mWindow.miniaturized) { + // This triggers an async animation, so continue. + [mWindow miniaturize:nil]; + continue; + } + break; + + case TransitionType::Deminiaturize: + if (mWindow.miniaturized) { + // This triggers an async animation, so continue. + [mWindow deminiaturize:nil]; + continue; + } + break; + + case TransitionType::Zoom: + if (!mWindow.zoomed) { + [mWindow zoom:nil]; + } + break; + + default: + break; + } + + mTransitionCurrent.reset(); + mIsTransitionCurrentAdded = false; + } + + mInProcessTransitions = false; + + // When we finish processing transitions, dispatch a size mode event to cover the + // cases where an inserted transition suppressed one, and the original transition + // never sent one because it detected it was at the desired state when it ran. If + // we've already sent a size mode event, then this will be a no-op. + if (!IsInTransition()) { + DispatchSizeModeEvent(); + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::FinishCurrentTransition() { + mTransitionCurrent.reset(); + mIsTransitionCurrentAdded = false; + ProcessTransitions(); +} + +void nsCocoaWindow::FinishCurrentTransitionIfMatching(const TransitionType& aTransition) { + // We've just finished some transition activity, and we're not sure whether it was + // triggered programmatically, or by the user. If it matches our current transition, + // then assume it was triggered programmatically and we can clean up that transition + // and start processing transitions again. + + // Whether programmatic or user-initiated, we send out a size mode event. + DispatchSizeModeEvent(); + + if (mTransitionCurrent.isSome() && (*mTransitionCurrent == aTransition)) { + // This matches our current transition. Since this function is called from + // nsWindowDelegate transition callbacks, we want to make sure those callbacks are + // all the way done before we start processing more transitions. To accomplish this, + // we dispatch our cleanup to happen on the next event loop. Doing this will ensure + // that any async native transition methods we call (like toggleFullscreen) will + // succeed. + NS_DispatchToCurrentThread(NewRunnableMethod("FinishCurrentTransition", this, + &nsCocoaWindow::FinishCurrentTransition)); + } +} + +bool nsCocoaWindow::HandleUpdateFullscreenOnResize() { + if (mUpdateFullscreenOnResize.isNothing()) { + return false; + } + + bool toFullscreen = (*mUpdateFullscreenOnResize == TransitionType::Fullscreen); + mUpdateFullscreenOnResize.reset(); + UpdateFullscreenState(toFullscreen, true); + + return true; +} + +// Coordinates are desktop pixels +void nsCocoaWindow::DoResize(double aX, double aY, double aWidth, double aHeight, bool aRepaint, + bool aConstrainToCurrentScreen) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow || mInResize) { + return; + } + + // We are able to resize a window outside of any aspect ratio contraints + // applied to it, but in order to "update" the aspect ratio contraint to the + // new window dimensions, we must re-lock the aspect ratio. + auto relockAspectRatio = MakeScopeExit([&]() { + if (mAspectRatioLocked) { + LockAspectRatio(true); + } + }); + + AutoRestore<bool> reentrantResizeGuard(mInResize); + mInResize = true; + + CGFloat scale = mSizeConstraints.mScale.scale; + if (scale == MOZ_WIDGET_INVALID_SCALE) { + scale = BackingScaleFactor(); + } + + // mSizeConstraints is in device pixels. + int32_t width = NSToIntRound(aWidth * scale); + int32_t height = NSToIntRound(aHeight * scale); + + width = + std::max(mSizeConstraints.mMinSize.width, std::min(mSizeConstraints.mMaxSize.width, width)); + height = std::max(mSizeConstraints.mMinSize.height, + std::min(mSizeConstraints.mMaxSize.height, height)); + + DesktopIntRect newBounds(NSToIntRound(aX), NSToIntRound(aY), NSToIntRound(width / scale), + NSToIntRound(height / scale)); + + // constrain to the screen that contains the largest area of the new rect + FitRectToVisibleAreaForScreen(newBounds, aConstrainToCurrentScreen ? [mWindow screen] : nullptr); + + // convert requested bounds into Cocoa coordinate system + NSRect newFrame = nsCocoaUtils::GeckoRectToCocoaRect(newBounds); + + NSRect frame = [mWindow frame]; + BOOL isMoving = newFrame.origin.x != frame.origin.x || newFrame.origin.y != frame.origin.y; + BOOL isResizing = + newFrame.size.width != frame.size.width || newFrame.size.height != frame.size.height; + + if (!isMoving && !isResizing) { + return; + } + + // We ignore aRepaint -- we have to call display:YES, otherwise the + // title bar doesn't immediately get repainted and is displayed in + // the wrong place, leading to a visual jump. + [mWindow setFrame:newFrame display:YES]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// Coordinates are desktop pixels +void nsCocoaWindow::Resize(double aX, double aY, double aWidth, double aHeight, bool aRepaint) { + DoResize(aX, aY, aWidth, aHeight, aRepaint, false); +} + +// Coordinates are desktop pixels +void nsCocoaWindow::Resize(double aWidth, double aHeight, bool aRepaint) { + double invScale = 1.0 / BackingScaleFactor(); + DoResize(mBounds.x * invScale, mBounds.y * invScale, aWidth, aHeight, aRepaint, true); +} + +// Return the area that the Gecko ChildView in our window should cover, as an +// NSRect in screen coordinates (with 0,0 being the bottom left corner of the +// primary screen). +NSRect nsCocoaWindow::GetClientCocoaRect() { + if (!mWindow) { + return NSZeroRect; + } + + return [mWindow childViewRectForFrameRect:[mWindow frame]]; +} + +LayoutDeviceIntRect nsCocoaWindow::GetClientBounds() { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + CGFloat scaleFactor = BackingScaleFactor(); + return nsCocoaUtils::CocoaRectToGeckoRectDevPix(GetClientCocoaRect(), scaleFactor); + + NS_OBJC_END_TRY_BLOCK_RETURN(LayoutDeviceIntRect(0, 0, 0, 0)); +} + +void nsCocoaWindow::UpdateBounds() { + NSRect frame = NSZeroRect; + if (mWindow) { + frame = [mWindow frame]; + } + mBounds = nsCocoaUtils::CocoaRectToGeckoRectDevPix(frame, BackingScaleFactor()); + + if (mPopupContentView) { + mPopupContentView->UpdateBoundsFromView(); + } +} + +LayoutDeviceIntRect nsCocoaWindow::GetScreenBounds() { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + +#ifdef DEBUG + LayoutDeviceIntRect r = + nsCocoaUtils::CocoaRectToGeckoRectDevPix([mWindow frame], BackingScaleFactor()); + NS_ASSERTION(mWindow && mBounds == r, "mBounds out of sync!"); +#endif + + return mBounds; + + NS_OBJC_END_TRY_BLOCK_RETURN(LayoutDeviceIntRect(0, 0, 0, 0)); +} + +double nsCocoaWindow::GetDefaultScaleInternal() { return BackingScaleFactor(); } + +static CGFloat GetBackingScaleFactor(NSWindow* aWindow) { + NSRect frame = [aWindow frame]; + if (frame.size.width > 0 && frame.size.height > 0) { + return nsCocoaUtils::GetBackingScaleFactor(aWindow); + } + + // For windows with zero width or height, the backingScaleFactor method + // is broken - it will always return 2 on a retina macbook, even when + // the window position implies it's on a non-hidpi external display + // (to the extent that a zero-area window can be said to be "on" a + // display at all!) + // And to make matters worse, Cocoa even fires a + // windowDidChangeBackingProperties notification with the + // NSBackingPropertyOldScaleFactorKey key when a window on an + // external display is resized to/from zero height, even though it hasn't + // really changed screens. + + // This causes us to handle popup window sizing incorrectly when the + // popup is resized to zero height (bug 820327) - nsXULPopupManager + // becomes (incorrectly) convinced the popup has been explicitly forced + // to a non-default size and needs to have size attributes attached. + + // Workaround: instead of asking the window, we'll find the screen it is on + // and ask that for *its* backing scale factor. + + // (See bug 853252 and additional comments in windowDidChangeScreen: below + // for further complications this causes.) + + // First, expand the rect so that it actually has a measurable area, + // for FindTargetScreenForRect to use. + if (frame.size.width == 0) { + frame.size.width = 1; + } + if (frame.size.height == 0) { + frame.size.height = 1; + } + + // Then identify the screen it belongs to, and return its scale factor. + NSScreen* screen = FindTargetScreenForRect(nsCocoaUtils::CocoaRectToGeckoRect(frame)); + return nsCocoaUtils::GetBackingScaleFactor(screen); +} + +CGFloat nsCocoaWindow::BackingScaleFactor() { + if (mBackingScaleFactor > 0.0) { + return mBackingScaleFactor; + } + if (!mWindow) { + return 1.0; + } + mBackingScaleFactor = GetBackingScaleFactor(mWindow); + return mBackingScaleFactor; +} + +void nsCocoaWindow::BackingScaleFactorChanged() { + CGFloat newScale = GetBackingScaleFactor(mWindow); + + // ignore notification if it hasn't really changed (or maybe we have + // disabled HiDPI mode via prefs) + if (mBackingScaleFactor == newScale) { + return; + } + + mBackingScaleFactor = newScale; + + if (!mWidgetListener || mWidgetListener->GetAppWindow()) { + return; + } + + if (PresShell* presShell = mWidgetListener->GetPresShell()) { + presShell->BackingScaleFactorChanged(); + } + mWidgetListener->UIResolutionChanged(); +} + +int32_t nsCocoaWindow::RoundsWidgetCoordinatesTo() { + if (BackingScaleFactor() == 2.0) { + return 2; + } + return 1; +} + +void nsCocoaWindow::SetCursor(const Cursor& aCursor) { + if (mPopupContentView) { + mPopupContentView->SetCursor(aCursor); + } +} + +nsresult nsCocoaWindow::SetTitle(const nsAString& aTitle) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + if (!mWindow) { + return NS_OK; + } + + const nsString& strTitle = PromiseFlatString(aTitle); + const unichar* uniTitle = reinterpret_cast<const unichar*>(strTitle.get()); + NSString* title = [NSString stringWithCharacters:uniTitle length:strTitle.Length()]; + if ([mWindow drawsContentsIntoWindowFrame] && ![mWindow wantsTitleDrawn]) { + // Don't cause invalidations when the title isn't displayed. + [mWindow disableSetNeedsDisplay]; + [mWindow setTitle:title]; + [mWindow enableSetNeedsDisplay]; + } else { + [mWindow setTitle:title]; + } + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +void nsCocoaWindow::Invalidate(const LayoutDeviceIntRect& aRect) { + if (mPopupContentView) { + mPopupContentView->Invalidate(aRect); + } +} + +// Pass notification of some drag event to Gecko +// +// The drag manager has let us know that something related to a drag has +// occurred in this window. It could be any number of things, ranging from +// a drop, to a drag enter/leave, or a drag over event. The actual event +// is passed in |aMessage| and is passed along to our event hanlder so Gecko +// knows about it. +bool nsCocoaWindow::DragEvent(unsigned int aMessage, mozilla::gfx::Point aMouseGlobal, + UInt16 aKeyModifiers) { + return false; +} + +NS_IMETHODIMP nsCocoaWindow::SendSetZLevelEvent() { + nsWindowZ placement = nsWindowZTop; + nsCOMPtr<nsIWidget> actualBelow; + if (mWidgetListener) + mWidgetListener->ZLevelChanged(true, &placement, nullptr, getter_AddRefs(actualBelow)); + return NS_OK; +} + +NS_IMETHODIMP nsCocoaWindow::GetChildSheet(bool aShown, nsIWidget** _retval) { + nsIWidget* child = GetFirstChild(); + + while (child) { + if (child->GetWindowType() == WindowType::Sheet) { + // if it's a sheet, it must be an nsCocoaWindow + nsCocoaWindow* cocoaWindow = static_cast<nsCocoaWindow*>(child); + if (cocoaWindow->mWindow && ((aShown && [cocoaWindow->mWindow isVisible]) || + (!aShown && cocoaWindow->mSheetNeedsShow))) { + nsCOMPtr<nsIWidget> widget = cocoaWindow; + widget.forget(_retval); + return NS_OK; + } + } + child = child->GetNextSibling(); + } + + *_retval = nullptr; + + return NS_OK; +} + +NS_IMETHODIMP nsCocoaWindow::GetRealParent(nsIWidget** parent) { + *parent = mParent; + return NS_OK; +} + +NS_IMETHODIMP nsCocoaWindow::GetIsSheet(bool* isSheet) { + mWindowType == WindowType::Sheet ? * isSheet = true : * isSheet = false; + return NS_OK; +} + +NS_IMETHODIMP nsCocoaWindow::GetSheetWindowParent(NSWindow** sheetWindowParent) { + *sheetWindowParent = mSheetWindowParent; + return NS_OK; +} + +// Invokes callback and ProcessEvent methods on Event Listener object +nsresult nsCocoaWindow::DispatchEvent(WidgetGUIEvent* event, nsEventStatus& aStatus) { + aStatus = nsEventStatus_eIgnore; + + nsCOMPtr<nsIWidget> kungFuDeathGrip(event->mWidget); + mozilla::Unused << kungFuDeathGrip; // Not used within this function + + if (mWidgetListener) aStatus = mWidgetListener->HandleEvent(event, mUseAttachedEvents); + + return NS_OK; +} + +// aFullScreen should be the window's mInFullScreenMode. We don't have access to that +// from here, so we need to pass it in. mInFullScreenMode should be the canonical +// indicator that a window is currently full screen and it makes sense to keep +// all sizemode logic here. +static nsSizeMode GetWindowSizeMode(NSWindow* aWindow, bool aFullScreen) { + if (aFullScreen) return nsSizeMode_Fullscreen; + if ([aWindow isMiniaturized]) return nsSizeMode_Minimized; + if (([aWindow styleMask] & NSWindowStyleMaskResizable) && [aWindow isZoomed]) + return nsSizeMode_Maximized; + return nsSizeMode_Normal; +} + +void nsCocoaWindow::ReportMoveEvent() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // Prevent recursion, which can become infinite (see bug 708278). This + // can happen when the call to [NSWindow setFrameTopLeftPoint:] in + // nsCocoaWindow::Move() triggers an immediate NSWindowDidMove notification + // (and a call to [WindowDelegate windowDidMove:]). + if (mInReportMoveEvent) { + return; + } + mInReportMoveEvent = true; + + UpdateBounds(); + + // The zoomed state can change when we're moving, in which case we need to + // update our internal mSizeMode. This can happen either if we're maximized + // and then moved, or if we're not maximized and moved back to zoomed state. + if (mWindow && ((mSizeMode == nsSizeMode_Maximized) ^ [mWindow isZoomed])) { + DispatchSizeModeEvent(); + } + + // Dispatch the move event to Gecko + NotifyWindowMoved(mBounds.x, mBounds.y); + + mInReportMoveEvent = false; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::DispatchSizeModeEvent() { + if (!mWindow) { + return; + } + + if (mSuppressSizeModeEvents || mIsTransitionCurrentAdded) { + return; + } + + nsSizeMode newMode = GetWindowSizeMode(mWindow, mInFullScreenMode); + if (mSizeMode == newMode) { + return; + } + + mSizeMode = newMode; + if (mWidgetListener) { + mWidgetListener->SizeModeChanged(newMode); + } + + if (StaticPrefs::widget_pause_compositor_when_minimized()) { + if (newMode == nsSizeMode_Minimized) { + PauseCompositor(); + } else { + ResumeCompositor(); + } + } +} + +void nsCocoaWindow::DispatchOcclusionEvent() { + if (!mWindow) { + return; + } + + // Our new occlusion state is true if the window is not visible. + bool newOcclusionState = + !(mHasStartedNativeFullscreen || ([mWindow occlusionState] & NSWindowOcclusionStateVisible)); + + // Don't dispatch if the new occlustion state is the same as the current state. + if (mIsFullyOccluded == newOcclusionState) { + return; + } + + MOZ_ASSERT(mIgnoreOcclusionCount >= 0); + if (newOcclusionState && mIgnoreOcclusionCount > 0) { + return; + } + + mIsFullyOccluded = newOcclusionState; + if (mWidgetListener) { + mWidgetListener->OcclusionStateChanged(mIsFullyOccluded); + } +} + +void nsCocoaWindow::ReportSizeEvent() { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + UpdateBounds(); + if (mWidgetListener) { + LayoutDeviceIntRect innerBounds = GetClientBounds(); + mWidgetListener->WindowResized(this, innerBounds.width, innerBounds.height); + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::PauseCompositor() { + nsIWidget* mainChildView = static_cast<nsIWidget*>([[mWindow mainChildView] widget]); + if (!mainChildView) { + return; + } + CompositorBridgeChild* remoteRenderer = mainChildView->GetRemoteRenderer(); + if (!remoteRenderer) { + return; + } + remoteRenderer->SendPause(); +} + +void nsCocoaWindow::ResumeCompositor() { + nsIWidget* mainChildView = static_cast<nsIWidget*>([[mWindow mainChildView] widget]); + if (!mainChildView) { + return; + } + CompositorBridgeChild* remoteRenderer = mainChildView->GetRemoteRenderer(); + if (!remoteRenderer) { + return; + } + remoteRenderer->SendResume(); +} + +void nsCocoaWindow::SetMenuBar(RefPtr<nsMenuBarX>&& aMenuBar) { + if (!mWindow) { + mMenuBar = nullptr; + return; + } + mMenuBar = std::move(aMenuBar); + + // Only paint for active windows, or paint the hidden window menu bar if no + // other menu bar has been painted yet so that some reasonable menu bar is + // displayed when the app starts up. + if (mMenuBar && ((!gSomeMenuBarPainted && nsMenuUtilsX::GetHiddenWindowMenuBar() == mMenuBar) || + [mWindow isMainWindow])) + mMenuBar->Paint(); +} + +void nsCocoaWindow::SetFocus(Raise aRaise, mozilla::dom::CallerType aCallerType) { + if (!mWindow) return; + + if (mPopupContentView) { + return mPopupContentView->SetFocus(aRaise, aCallerType); + } + + if (aRaise == Raise::Yes && ([mWindow isVisible] || [mWindow isMiniaturized])) { + if ([mWindow isMiniaturized]) { + [mWindow deminiaturize:nil]; + } + + [mWindow makeKeyAndOrderFront:nil]; + SendSetZLevelEvent(); + } +} + +LayoutDeviceIntPoint nsCocoaWindow::WidgetToScreenOffset() { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + return nsCocoaUtils::CocoaRectToGeckoRectDevPix(GetClientCocoaRect(), BackingScaleFactor()) + .TopLeft(); + + NS_OBJC_END_TRY_BLOCK_RETURN(LayoutDeviceIntPoint(0, 0)); +} + +LayoutDeviceIntPoint nsCocoaWindow::GetClientOffset() { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + LayoutDeviceIntRect clientRect = GetClientBounds(); + + return clientRect.TopLeft() - mBounds.TopLeft(); + + NS_OBJC_END_TRY_BLOCK_RETURN(LayoutDeviceIntPoint(0, 0)); +} + +LayoutDeviceIntMargin nsCocoaWindow::ClientToWindowMargin() { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + if (!mWindow || mWindow.drawsContentsIntoWindowFrame || mWindowType == WindowType::Popup) { + return {}; + } + + NSRect clientNSRect = mWindow.contentLayoutRect; + NSRect frameNSRect = [mWindow frameRectForChildViewRect:clientNSRect]; + + CGFloat backingScale = BackingScaleFactor(); + const auto clientRect = nsCocoaUtils::CocoaRectToGeckoRectDevPix(clientNSRect, backingScale); + const auto frameRect = nsCocoaUtils::CocoaRectToGeckoRectDevPix(frameNSRect, backingScale); + + return frameRect - clientRect; + + NS_OBJC_END_TRY_BLOCK_RETURN({}); +} + +nsMenuBarX* nsCocoaWindow::GetMenuBar() { return mMenuBar; } + +void nsCocoaWindow::CaptureRollupEvents(bool aDoCapture) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (aDoCapture) { + if (![NSApp isActive]) { + // We need to capture mouse event if we aren't + // the active application. We only set this up when needed + // because they cause spurious mouse event after crash + // and gdb sessions. See bug 699538. + nsToolkit::GetToolkit()->MonitorAllProcessMouseEvents(); + } + + // Sometimes more than one popup window can be visible at the same time + // (e.g. nested non-native context menus, or the test case (attachment + // 276885) for bmo bug 392389, which displays a non-native combo-box in a + // non-native popup window). In these cases the "active" popup window should + // be the topmost -- the (nested) context menu the mouse is currently over, + // or the combo-box's drop-down list (when it's displayed). But (among + // windows that have the same "level") OS X makes topmost the window that + // last received a mouse-down event, which may be incorrect (in the combo- + // box case, it makes topmost the window containing the combo-box). So + // here we fiddle with a non-native popup window's level to make sure the + // "active" one is always above any other non-native popup windows that + // may be visible. + if (mWindow && (mWindowType == WindowType::Popup)) SetPopupWindowLevel(); + } else { + nsToolkit::GetToolkit()->StopMonitoringAllProcessMouseEvents(); + + // XXXndeakin this doesn't make sense. + // Why is the new window assumed to be a modal panel? + if (mWindow && (mWindowType == WindowType::Popup)) [mWindow setLevel:NSModalPanelWindowLevel]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +nsresult nsCocoaWindow::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); +} + +bool nsCocoaWindow::HasPendingInputEvent() { return nsChildView::DoHasPendingInputEvent(); } + +void nsCocoaWindow::SetWindowShadowStyle(StyleWindowShadow aStyle) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + mShadowStyle = aStyle; + + if (!mWindow || mWindowType != WindowType::Popup) { + return; + } + + mWindow.shadowStyle = mShadowStyle; + [mWindow setUseMenuStyle:mShadowStyle == StyleWindowShadow::Menu]; + [mWindow setHasShadow:aStyle != StyleWindowShadow::None]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetWindowOpacity(float aOpacity) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) { + return; + } + + [mWindow setAlphaValue:(CGFloat)aOpacity]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetColorScheme(const Maybe<ColorScheme>& aScheme) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) { + return; + } + + mWindow.appearance = aScheme ? NSAppearanceForColorScheme(*aScheme) : nil; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +static inline CGAffineTransform GfxMatrixToCGAffineTransform(const gfx::Matrix& m) { + CGAffineTransform t; + t.a = m._11; + t.b = m._12; + t.c = m._21; + t.d = m._22; + t.tx = m._31; + t.ty = m._32; + return t; +} + +void nsCocoaWindow::SetWindowTransform(const gfx::Matrix& aTransform) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!mWindow) { + return; + } + + // Calling CGSSetWindowTransform when the window is not visible results in + // misplacing the window into doubled x,y coordinates (see bug 1448132). + if (![mWindow isVisible] || NSIsEmptyRect([mWindow frame])) { + return; + } + + if (StaticPrefs::widget_window_transforms_disabled()) { + // CGSSetWindowTransform is a private API. In case calling it causes + // problems either now or in the future, we'll want to have an easy kill + // switch. So we allow disabling it with a pref. + return; + } + + gfx::Matrix transform = aTransform; + + // aTransform is a transform that should be applied to the window relative + // to its regular position: If aTransform._31 is 100, then we want the + // window to be displayed 100 pixels to the right of its regular position. + // The transform that CGSSetWindowTransform accepts has a different meaning: + // It's used to answer the question "For the screen pixel at x,y (with the + // origin at the top left), what pixel in the window's buffer (again with + // origin top left) should be displayed at that position?" + // In the example above, this means that we need to call + // CGSSetWindowTransform with a horizontal translation of -windowPos.x - 100. + // So we need to invert the transform and adjust it by the window's position. + if (!transform.Invert()) { + // Treat non-invertible transforms as the identity transform. + transform = gfx::Matrix(); + } + + bool isIdentity = transform.IsIdentity(); + if (isIdentity && mWindowTransformIsIdentity) { + return; + } + + transform.PreTranslate(-mBounds.x, -mBounds.y); + + // Snap translations to device pixels, to match what we do for CSS transforms + // and because the window server rounds down instead of to nearest. + if (!transform.HasNonTranslation() && transform.HasNonIntegerTranslation()) { + auto snappedTranslation = gfx::IntPoint::Round(transform.GetTranslation()); + transform = gfx::Matrix::Translation(snappedTranslation.x, snappedTranslation.y); + } + + // We also need to account for the backing scale factor: aTransform is given + // in device pixels, but CGSSetWindowTransform works with logical display + // pixels. + CGFloat backingScale = BackingScaleFactor(); + transform.PreScale(backingScale, backingScale); + transform.PostScale(1 / backingScale, 1 / backingScale); + + CGSConnection cid = _CGSDefaultConnection(); + CGSSetWindowTransform(cid, [mWindow windowNumber], GfxMatrixToCGAffineTransform(transform)); + + mWindowTransformIsIdentity = isIdentity; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetInputRegion(const InputRegion& aInputRegion) { + MOZ_ASSERT(mWindowType == WindowType::Popup, "This should only be called on popup windows."); + // TODO: Somehow support aInputRegion.mMargin? Though maybe not. + if (aInputRegion.mFullyTransparent) { + [mWindow setIgnoresMouseEvents:YES]; + } else { + [mWindow setIgnoresMouseEvents:NO]; + } +} + +void nsCocoaWindow::SetShowsToolbarButton(bool aShow) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (mWindow) [mWindow setShowsToolbarButton:aShow]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetSupportsNativeFullscreen(bool aSupportsNativeFullscreen) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (mWindow) { + // This determines whether we tell cocoa that the window supports native + // full screen. If we do so, and another window is in native full screen, + // this window will also appear in native full screen. We generally only + // want to do this for primary application windows. We'll set the + // relevant macnativefullscreen attribute on those, which will lead to us + // being called with aSupportsNativeFullscreen set to `true` here. + NSWindowCollectionBehavior newBehavior = [mWindow collectionBehavior]; + if (aSupportsNativeFullscreen) { + newBehavior |= NSWindowCollectionBehaviorFullScreenPrimary; + } else { + newBehavior &= ~NSWindowCollectionBehaviorFullScreenPrimary; + } + [mWindow setCollectionBehavior:newBehavior]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetWindowAnimationType(nsIWidget::WindowAnimationType aType) { + mAnimationType = aType; +} + +void nsCocoaWindow::SetDrawsTitle(bool aDrawTitle) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (![mWindow drawsContentsIntoWindowFrame]) { + // If we don't draw into the window frame, we always want to display window + // titles. + [mWindow setWantsTitleDrawn:YES]; + } else { + [mWindow setWantsTitleDrawn:aDrawTitle]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +nsresult nsCocoaWindow::SetNonClientMargins(const LayoutDeviceIntMargin& margins) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + SetDrawsInTitlebar(margins.top == 0); + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +void nsCocoaWindow::SetDrawsInTitlebar(bool aState) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (mWindow) { + [mWindow setDrawsContentsIntoWindowFrame:aState]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +NS_IMETHODIMP nsCocoaWindow::SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint, + NativeMouseMessage aNativeMessage, + MouseButton aButton, + nsIWidget::Modifiers aModifierFlags, + nsIObserver* aObserver) { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + AutoObserverNotifier notifier(aObserver, "mouseevent"); + if (mPopupContentView) { + return mPopupContentView->SynthesizeNativeMouseEvent(aPoint, aNativeMessage, aButton, + aModifierFlags, nullptr); + } + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +NS_IMETHODIMP nsCocoaWindow::SynthesizeNativeMouseScrollEvent( + 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"); + if (mPopupContentView) { + // Pass nullptr as the observer so that the AutoObserverNotification in + // nsChildView::SynthesizeNativeMouseScrollEvent will be ignored. + return mPopupContentView->SynthesizeNativeMouseScrollEvent(aPoint, aNativeMessage, aDeltaX, + aDeltaY, aDeltaZ, aModifierFlags, + aAdditionalFlags, nullptr); + } + + return NS_OK; + + NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE); +} + +void nsCocoaWindow::LockAspectRatio(bool aShouldLock) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (aShouldLock) { + [mWindow setContentAspectRatio:mWindow.frame.size]; + mAspectRatioLocked = true; + } else { + // According to https://developer.apple.com/documentation/appkit/nswindow/1419507-aspectratio, + // aspect ratios and resize increments are mutually exclusive, and the accepted way of + // cancelling an established aspect ratio is to set the resize increments to 1.0, 1.0 + [mWindow setResizeIncrements:NSMakeSize(1.0, 1.0)]; + mAspectRatioLocked = false; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::UpdateThemeGeometries(const nsTArray<ThemeGeometry>& aThemeGeometries) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (mPopupContentView) { + return mPopupContentView->UpdateThemeGeometries(aThemeGeometries); + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +void nsCocoaWindow::SetPopupWindowLevel() { + if (!mWindow) return; + + // Floating popups are at the floating level and hide when the window is + // deactivated. + if (mPopupLevel == PopupLevel::Floating) { + [mWindow setLevel:NSFloatingWindowLevel]; + [mWindow setHidesOnDeactivate:YES]; + } else { + // Otherwise, this is a top-level or parent popup. Parent popups always + // appear just above their parent and essentially ignore the level. + [mWindow setLevel:NSPopUpMenuWindowLevel]; + [mWindow setHidesOnDeactivate:NO]; + } +} + +void nsCocoaWindow::SetInputContext(const InputContext& aContext, + const InputContextAction& aAction) { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + mInputContext = aContext; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +bool nsCocoaWindow::GetEditCommands(NativeKeyBindingsType aType, const WidgetKeyboardEvent& aEvent, + nsTArray<CommandInt>& aCommands) { + // Validate the arguments. + if (NS_WARN_IF(!nsIWidget::GetEditCommands(aType, aEvent, aCommands))) { + return false; + } + + NativeKeyBindings* keyBindings = NativeKeyBindings::GetInstance(aType); + // When the keyboard event is fired from this widget, it must mean that no web content has focus + // because any web contents should be on `nsChildView`. And in any locales, the system UI is + // always horizontal layout. So, let's pass `Nothing()` for the writing mode here, it won't be + // treated as in a vertical content. + keyBindings->GetEditCommands(aEvent, Nothing(), aCommands); + return true; +} + +bool nsCocoaWindow::AsyncPanZoomEnabled() const { + if (mPopupContentView) { + return mPopupContentView->AsyncPanZoomEnabled(); + } + return nsBaseWidget::AsyncPanZoomEnabled(); +} + +bool nsCocoaWindow::StartAsyncAutoscroll(const ScreenPoint& aAnchorLocation, + const ScrollableLayerGuid& aGuid) { + if (mPopupContentView) { + return mPopupContentView->StartAsyncAutoscroll(aAnchorLocation, aGuid); + } + return nsBaseWidget::StartAsyncAutoscroll(aAnchorLocation, aGuid); +} + +void nsCocoaWindow::StopAsyncAutoscroll(const ScrollableLayerGuid& aGuid) { + if (mPopupContentView) { + mPopupContentView->StopAsyncAutoscroll(aGuid); + return; + } + nsBaseWidget::StopAsyncAutoscroll(aGuid); +} + +already_AddRefed<nsIWidget> nsIWidget::CreateTopLevelWindow() { + nsCOMPtr<nsIWidget> window = new nsCocoaWindow(); + return window.forget(); +} + +already_AddRefed<nsIWidget> nsIWidget::CreateChildWindow() { + nsCOMPtr<nsIWidget> window = new nsChildView(); + return window.forget(); +} + +@implementation WindowDelegate + +// We try to find a gecko menu bar to paint. If one does not exist, just paint +// the application menu by itself so that a window doesn't have some other +// window's menu bar. ++ (void)paintMenubarForWindow:(NSWindow*)aWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // make sure we only act on windows that have this kind of + // object as a delegate + id windowDelegate = [aWindow delegate]; + if ([windowDelegate class] != [self class]) return; + + nsCocoaWindow* geckoWidget = [windowDelegate geckoWidget]; + NS_ASSERTION(geckoWidget, "Window delegate not returning a gecko widget!"); + + nsMenuBarX* geckoMenuBar = geckoWidget->GetMenuBar(); + if (geckoMenuBar) { + geckoMenuBar->Paint(); + } else { + // sometimes we don't have a native application menu early in launching + if (!sApplicationMenu) return; + + NSMenu* mainMenu = [NSApp mainMenu]; + NS_ASSERTION([mainMenu numberOfItems] > 0, + "Main menu does not have any items, something is terribly wrong!"); + + // Create a new menu bar. + // We create a GeckoNSMenu because all menu bar NSMenu objects should use that subclass for + // key handling reasons. + GeckoNSMenu* newMenuBar = [[GeckoNSMenu alloc] initWithTitle:@"MainMenuBar"]; + + // move the application menu from the existing menu bar to the new one + NSMenuItem* firstMenuItem = [[mainMenu itemAtIndex:0] retain]; + [mainMenu removeItemAtIndex:0]; + [newMenuBar insertItem:firstMenuItem atIndex:0]; + [firstMenuItem release]; + + // set our new menu bar as the main menu + [NSApp setMainMenu:newMenuBar]; + [newMenuBar release]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (id)initWithGeckoWindow:(nsCocoaWindow*)geckoWind { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + [super init]; + mGeckoWindow = geckoWind; + mToplevelActiveState = false; + mHasEverBeenZoomed = false; + return self; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (NSSize)windowWillResize:(NSWindow*)sender toSize:(NSSize)proposedFrameSize { + RollUpPopups(); + return proposedFrameSize; +} + +- (NSRect)windowWillUseStandardFrame:(NSWindow*)window defaultFrame:(NSRect)newFrame { + // This function needs to return a rect representing the frame a window would + // have if it is in its "maximized" size mode. The parameter newFrame is supposed + // to be a frame representing the maximum window size on the screen where the + // window currently appears. However, in practice, newFrame can be a much smaller + // size. So, we ignore newframe and instead return the frame of the entire screen + // associated with the window. That frame is bigger than the window could actually + // be, due to the presence of the menubar and possibly the dock, but we never call + // this function directly, and Cocoa callers will shrink it to its true maximum + // size. + return window.screen.frame; +} + +void nsCocoaWindow::CocoaSendToplevelActivateEvents() { + if (mWidgetListener) { + mWidgetListener->WindowActivated(); + } +} + +void nsCocoaWindow::CocoaSendToplevelDeactivateEvents() { + if (mWidgetListener) { + mWidgetListener->WindowDeactivated(); + } +} + +void nsCocoaWindow::CocoaWindowDidResize() { + // It's important to update our bounds before we trigger any listeners. This + // ensures that our bounds are correct when GetScreenBounds is called. + UpdateBounds(); + + if (HandleUpdateFullscreenOnResize()) { + ReportSizeEvent(); + return; + } + + // Resizing might have changed our zoom state. + DispatchSizeModeEvent(); + ReportSizeEvent(); +} + +- (void)windowDidResize:(NSNotification*)aNotification { + BaseWindow* window = [aNotification object]; + [window updateTrackingArea]; + + if (!mGeckoWindow) return; + + mGeckoWindow->CocoaWindowDidResize(); +} + +- (void)windowDidChangeScreen:(NSNotification*)aNotification { + if (!mGeckoWindow) return; + + // Because of Cocoa's peculiar treatment of zero-size windows (see comments + // at GetBackingScaleFactor() above), we sometimes have a situation where + // our concept of backing scale (based on the screen where the zero-sized + // window is positioned) differs from Cocoa's idea (always based on the + // Retina screen, AFAICT, even when an external non-Retina screen is the + // primary display). + // + // As a result, if the window was created with zero size on an external + // display, but then made visible on the (secondary) Retina screen, we + // will *not* get a windowDidChangeBackingProperties notification for it. + // This leads to an incorrect GetDefaultScale(), and widget coordinate + // confusion, as per bug 853252. + // + // To work around this, we check for a backing scale mismatch when we + // receive a windowDidChangeScreen notification, as we will receive this + // even if Cocoa was already treating the zero-size window as having + // Retina backing scale. + NSWindow* window = (NSWindow*)[aNotification object]; + if ([window respondsToSelector:@selector(backingScaleFactor)]) { + if (GetBackingScaleFactor(window) != mGeckoWindow->BackingScaleFactor()) { + mGeckoWindow->BackingScaleFactorChanged(); + } + } + + mGeckoWindow->ReportMoveEvent(); +} + +- (void)windowWillEnterFullScreen:(NSNotification*)notification { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->CocoaWindowWillEnterFullscreen(true); +} + +// Lion's full screen mode will bypass our internal fullscreen tracking, so +// we need to catch it when we transition and call our own methods, which in +// turn will fire "fullscreen" events. +- (void)windowDidEnterFullScreen:(NSNotification*)notification { + // On Yosemite, the NSThemeFrame class has two new properties -- + // titlebarView (an NSTitlebarView object) and titlebarContainerView (an + // NSTitlebarContainerView object). These are used to display the titlebar + // in fullscreen mode. In Safari they're not transparent. But in Firefox + // for some reason they are, which causes bug 1069658. The following code + // works around this Apple bug or design flaw. + NSWindow* window = (NSWindow*)[notification object]; + NSView* frameView = [[window contentView] superview]; + NSView* titlebarView = nil; + NSView* titlebarContainerView = nil; + if ([frameView respondsToSelector:@selector(titlebarView)]) { + titlebarView = [frameView titlebarView]; + } + if ([frameView respondsToSelector:@selector(titlebarContainerView)]) { + titlebarContainerView = [frameView titlebarContainerView]; + } + if ([titlebarView respondsToSelector:@selector(setTransparent:)]) { + [titlebarView setTransparent:NO]; + } + if ([titlebarContainerView respondsToSelector:@selector(setTransparent:)]) { + [titlebarContainerView setTransparent:NO]; + } + + if (!mGeckoWindow) { + return; + } + mGeckoWindow->CocoaWindowDidEnterFullscreen(true); +} + +- (void)windowWillExitFullScreen:(NSNotification*)notification { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->CocoaWindowWillEnterFullscreen(false); +} + +- (void)windowDidExitFullScreen:(NSNotification*)notification { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->CocoaWindowDidEnterFullscreen(false); +} + +- (void)windowDidFailToEnterFullScreen:(NSWindow*)window { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->CocoaWindowDidFailFullscreen(true); +} + +- (void)windowDidFailToExitFullScreen:(NSWindow*)window { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->CocoaWindowDidFailFullscreen(false); +} + +- (void)windowDidBecomeMain:(NSNotification*)aNotification { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + RollUpPopups(); + ChildViewMouseTracker::ReEvaluateMouseEnterState(); + + // [NSApp _isRunningAppModal] will return true if we're running an OS dialog + // app modally. If one of those is up then we want it to retain its menu bar. + if ([NSApp _isRunningAppModal]) return; + NSWindow* window = [aNotification object]; + if (window) [WindowDelegate paintMenubarForWindow:window]; + + if ([window isKindOfClass:[ToolbarWindow class]]) { + [(ToolbarWindow*)window windowMainStateChanged]; + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (void)windowDidResignMain:(NSNotification*)aNotification { + RollUpPopups(); + ChildViewMouseTracker::ReEvaluateMouseEnterState(); + + // [NSApp _isRunningAppModal] will return true if we're running an OS dialog + // app modally. If one of those is up then we want it to retain its menu bar. + if ([NSApp _isRunningAppModal]) return; + RefPtr<nsMenuBarX> hiddenWindowMenuBar = nsMenuUtilsX::GetHiddenWindowMenuBar(); + if (hiddenWindowMenuBar) { + // printf("painting hidden window menu bar due to window losing main status\n"); + hiddenWindowMenuBar->Paint(); + } + + NSWindow* window = [aNotification object]; + if ([window isKindOfClass:[ToolbarWindow class]]) { + [(ToolbarWindow*)window windowMainStateChanged]; + } +} + +- (void)windowDidBecomeKey:(NSNotification*)aNotification { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + RollUpPopups(); + ChildViewMouseTracker::ReEvaluateMouseEnterState(); + + NSWindow* window = [aNotification object]; + if ([window isSheet]) [WindowDelegate paintMenubarForWindow:window]; + + nsChildView* mainChildView = + static_cast<nsChildView*>([[(BaseWindow*)window mainChildView] widget]); + if (mainChildView) { + if (mainChildView->GetInputContext().IsPasswordEditor()) { + TextInputHandler::EnableSecureEventInput(); + } else { + TextInputHandler::EnsureSecureEventInputDisabled(); + } + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (void)windowDidResignKey:(NSNotification*)aNotification { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + RollUpPopups(nsIRollupListener::AllowAnimations::No); + + ChildViewMouseTracker::ReEvaluateMouseEnterState(); + + // If a sheet just resigned key then we should paint the menu bar + // for whatever window is now main. + NSWindow* window = [aNotification object]; + if ([window isSheet]) [WindowDelegate paintMenubarForWindow:[NSApp mainWindow]]; + + TextInputHandler::EnsureSecureEventInputDisabled(); + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (void)windowWillMove:(NSNotification*)aNotification { + RollUpPopups(); +} + +- (void)windowDidMove:(NSNotification*)aNotification { + if (mGeckoWindow) mGeckoWindow->ReportMoveEvent(); +} + +- (BOOL)windowShouldClose:(id)sender { + nsIWidgetListener* listener = mGeckoWindow ? mGeckoWindow->GetWidgetListener() : nullptr; + if (listener) listener->RequestWindowClose(mGeckoWindow); + return NO; // gecko will do it +} + +- (void)windowWillClose:(NSNotification*)aNotification { + RollUpPopups(); +} + +- (void)windowWillMiniaturize:(NSNotification*)aNotification { + RollUpPopups(); +} + +- (void)windowDidMiniaturize:(NSNotification*)aNotification { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->FinishCurrentTransitionIfMatching(nsCocoaWindow::TransitionType::Miniaturize); +} + +- (void)windowDidDeminiaturize:(NSNotification*)aNotification { + if (!mGeckoWindow) { + return; + } + mGeckoWindow->FinishCurrentTransitionIfMatching(nsCocoaWindow::TransitionType::Deminiaturize); +} + +- (BOOL)windowShouldZoom:(NSWindow*)window toFrame:(NSRect)proposedFrame { + if (!mHasEverBeenZoomed && [window isZoomed]) return NO; // See bug 429954. + + mHasEverBeenZoomed = YES; + return YES; +} + +- (NSRect)window:(NSWindow*)window willPositionSheet:(NSWindow*)sheet usingRect:(NSRect)rect { + if ([window isKindOfClass:[ToolbarWindow class]]) { + rect.origin.y = [(ToolbarWindow*)window sheetAttachmentPosition]; + } + return rect; +} + +#ifdef MOZ_THUNDERBIRD +- (void)didEndSheet:(NSWindow*)sheet returnCode:(int)returnCode contextInfo:(void*)contextInfo { + NS_OBJC_BEGIN_TRY_ABORT_BLOCK; + + // Note: 'contextInfo' (if it is set) is the window that is the parent of + // the sheet. The value of contextInfo is determined in + // nsCocoaWindow::Show(). If it's set, 'contextInfo' is always the top- + // level window, not another sheet itself. But 'contextInfo' is nil if + // our parent window is also a sheet -- in that case we shouldn't send + // the top-level window any activate events (because it's our parent + // window that needs to get these events, not the top-level window). + [TopLevelWindowData deactivateInWindow:sheet]; + [sheet orderOut:self]; + if (contextInfo) [TopLevelWindowData activateInWindow:(NSWindow*)contextInfo]; + + NS_OBJC_END_TRY_ABORT_BLOCK; +} +#endif + +- (void)windowDidChangeBackingProperties:(NSNotification*)aNotification { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + NSWindow* window = (NSWindow*)[aNotification object]; + + if ([window respondsToSelector:@selector(backingScaleFactor)]) { + CGFloat oldFactor = + [[[aNotification userInfo] objectForKey:@"NSBackingPropertyOldScaleFactorKey"] doubleValue]; + if ([window backingScaleFactor] != oldFactor) { + mGeckoWindow->BackingScaleFactorChanged(); + } + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// This method is on NSWindowDelegate starting with 10.9 +- (void)windowDidChangeOcclusionState:(NSNotification*)aNotification { + if (mGeckoWindow) { + mGeckoWindow->DispatchOcclusionEvent(); + } +} + +- (nsCocoaWindow*)geckoWidget { + return mGeckoWindow; +} + +- (bool)toplevelActiveState { + return mToplevelActiveState; +} + +- (void)sendToplevelActivateEvents { + if (!mToplevelActiveState && mGeckoWindow) { + mGeckoWindow->CocoaSendToplevelActivateEvents(); + + mToplevelActiveState = true; + } +} + +- (void)sendToplevelDeactivateEvents { + if (mToplevelActiveState && mGeckoWindow) { + mGeckoWindow->CocoaSendToplevelDeactivateEvents(); + mToplevelActiveState = false; + } +} + +@end + +@interface NSView (FrameViewMethodSwizzling) +- (NSPoint)FrameView__closeButtonOrigin; +- (CGFloat)FrameView__titlebarHeight; +@end + +@implementation NSView (FrameViewMethodSwizzling) + +- (NSPoint)FrameView__closeButtonOrigin { + if (![self.window isKindOfClass:[ToolbarWindow class]]) { + return self.FrameView__closeButtonOrigin; + } + ToolbarWindow* win = (ToolbarWindow*)[self window]; + if (win.drawsContentsIntoWindowFrame && !(win.styleMask & NSWindowStyleMaskFullScreen) && + (win.styleMask & NSWindowStyleMaskTitled)) { + const NSRect buttonsRect = win.windowButtonsRect; + if (NSIsEmptyRect(buttonsRect)) { + // Empty rect. Let's hide the buttons. + // Position is in non-flipped window coordinates. Using frame's height + // for the vertical coordinate will move the buttons above the window, + // making them invisible. + return NSMakePoint(buttonsRect.origin.x, win.frame.size.height); + } else if (win.windowTitlebarLayoutDirection == NSUserInterfaceLayoutDirectionRightToLeft) { + // We're in RTL mode, which means that the close button is the rightmost + // button of the three window buttons. and buttonsRect.origin is the + // bottom left corner of the green (zoom) button. The close button is 40px + // to the right of the zoom button. This is confirmed to be the same on + // all macOS versions between 10.12 - 12.0. + return NSMakePoint(buttonsRect.origin.x + 40.0f, buttonsRect.origin.y); + } + return buttonsRect.origin; + } + return self.FrameView__closeButtonOrigin; +} + +- (CGFloat)FrameView__titlebarHeight { + CGFloat height = [self FrameView__titlebarHeight]; + if ([[self window] isKindOfClass:[ToolbarWindow class]]) { + // Make sure that the titlebar height includes our shifted buttons. + // The following coordinates are in window space, with the origin being at the bottom left + // corner of the window. + ToolbarWindow* win = (ToolbarWindow*)[self window]; + CGFloat frameHeight = [self frame].size.height; + CGFloat windowButtonY = frameHeight; + if (!NSIsEmptyRect(win.windowButtonsRect) && win.drawsContentsIntoWindowFrame && + !(win.styleMask & NSWindowStyleMaskFullScreen) && + (win.styleMask & NSWindowStyleMaskTitled)) { + windowButtonY = win.windowButtonsRect.origin.y; + } + height = std::max(height, frameHeight - windowButtonY); + } + return height; +} + +@end + +static NSMutableSet* gSwizzledFrameViewClasses = nil; + +@interface NSWindow (PrivateSetNeedsDisplayInRectMethod) +- (void)_setNeedsDisplayInRect:(NSRect)aRect; +@end + +@interface NSView (NSVisualEffectViewSetMaskImage) +- (void)setMaskImage:(NSImage*)image; +@end + +@interface BaseWindow (Private) +- (void)removeTrackingArea; +- (void)cursorUpdated:(NSEvent*)aEvent; +- (void)reflowTitlebarElements; +@end + +@implementation BaseWindow + +// The frame of a window is implemented using undocumented NSView subclasses. +// We offset the window buttons by overriding the method _closeButtonOrigin on +// these frame view classes. The class which is +// used for a window is determined in the window's frameViewClassForStyleMask: +// method, so this is where we make sure that we have swizzled the method on +// all encountered classes. ++ (Class)frameViewClassForStyleMask:(NSUInteger)styleMask { + Class frameViewClass = [super frameViewClassForStyleMask:styleMask]; + + if (!gSwizzledFrameViewClasses) { + gSwizzledFrameViewClasses = [[NSMutableSet setWithCapacity:3] retain]; + if (!gSwizzledFrameViewClasses) { + return frameViewClass; + } + } + + static IMP our_closeButtonOrigin = + class_getMethodImplementation([NSView class], @selector(FrameView__closeButtonOrigin)); + static IMP our_titlebarHeight = + class_getMethodImplementation([NSView class], @selector(FrameView__titlebarHeight)); + + if (![gSwizzledFrameViewClasses containsObject:frameViewClass]) { + // Either of these methods might be implemented in both a subclass of + // NSFrameView and one of its own subclasses. Which means that if we + // aren't careful we might end up swizzling the same method twice. + // Since method swizzling involves swapping pointers, this would break + // things. + IMP _closeButtonOrigin = + class_getMethodImplementation(frameViewClass, @selector(_closeButtonOrigin)); + if (_closeButtonOrigin && _closeButtonOrigin != our_closeButtonOrigin) { + nsToolkit::SwizzleMethods(frameViewClass, @selector(_closeButtonOrigin), + @selector(FrameView__closeButtonOrigin)); + } + + // Override _titlebarHeight so that the floating titlebar doesn't clip the bottom of the + // window buttons which we move down with our override of _closeButtonOrigin. + IMP _titlebarHeight = class_getMethodImplementation(frameViewClass, @selector(_titlebarHeight)); + if (_titlebarHeight && _titlebarHeight != our_titlebarHeight) { + nsToolkit::SwizzleMethods(frameViewClass, @selector(_titlebarHeight), + @selector(FrameView__titlebarHeight)); + } + + [gSwizzledFrameViewClasses addObject:frameViewClass]; + } + + return frameViewClass; +} + +- (id)initWithContentRect:(NSRect)aContentRect + styleMask:(NSUInteger)aStyle + backing:(NSBackingStoreType)aBufferingType + defer:(BOOL)aFlag { + mDrawsIntoWindowFrame = NO; + [super initWithContentRect:aContentRect styleMask:aStyle backing:aBufferingType defer:aFlag]; + mState = nil; + mDisabledNeedsDisplay = NO; + mTrackingArea = nil; + mDirtyRect = NSZeroRect; + mBeingShown = NO; + mDrawTitle = NO; + mUseMenuStyle = NO; + mTouchBar = nil; + mIsAnimationSuppressed = NO; + [self updateTrackingArea]; + + return self; +} + +// Returns an autoreleased NSImage. +static NSImage* GetMenuMaskImage() { + CGFloat radius = 4.0f; + NSEdgeInsets insets = {5, 5, 5, 5}; + NSSize maskSize = {12, 12}; + NSImage* maskImage = [NSImage imageWithSize:maskSize + flipped:YES + drawingHandler:^BOOL(NSRect dstRect) { + NSBezierPath* path = + [NSBezierPath bezierPathWithRoundedRect:dstRect + xRadius:radius + yRadius:radius]; + [[NSColor colorWithDeviceWhite:1.0 alpha:1.0] set]; + [path fill]; + return YES; + }]; + [maskImage setCapInsets:insets]; + return maskImage; +} + +- (void)swapOutChildViewWrapper:(NSView*)aNewWrapper { + [aNewWrapper setFrame:[[self contentView] frame]]; + NSView* childView = [[self mainChildView] retain]; + [childView removeFromSuperview]; + [aNewWrapper addSubview:childView]; + [childView release]; + [super setContentView:aNewWrapper]; +} + +- (void)setUseMenuStyle:(BOOL)aValue { + if (aValue && !mUseMenuStyle) { + // Turn on rounded corner masking. + NSView* effectView = VibrancyManager::CreateEffectView(VibrancyType::MENU, YES); + [effectView setMaskImage:GetMenuMaskImage()]; + [self swapOutChildViewWrapper:effectView]; + [effectView release]; + } else if (mUseMenuStyle && !aValue) { + // Turn off rounded corner masking. + NSView* wrapper = [[NSView alloc] initWithFrame:NSZeroRect]; + [wrapper setWantsLayer:YES]; + [self swapOutChildViewWrapper:wrapper]; + [wrapper release]; + } + mUseMenuStyle = aValue; +} + +- (NSTouchBar*)makeTouchBar { + mTouchBar = [[nsTouchBar alloc] init]; + if (mTouchBar) { + sTouchBarIsInitialized = YES; + } + return mTouchBar; +} + +- (void)setBeingShown:(BOOL)aValue { + mBeingShown = aValue; +} + +- (BOOL)isBeingShown { + return mBeingShown; +} + +- (BOOL)isVisibleOrBeingShown { + return [super isVisible] || mBeingShown; +} + +- (void)setIsAnimationSuppressed:(BOOL)aValue { + mIsAnimationSuppressed = aValue; +} + +- (BOOL)isAnimationSuppressed { + return mIsAnimationSuppressed; +} + +- (void)disableSetNeedsDisplay { + mDisabledNeedsDisplay = YES; +} + +- (void)enableSetNeedsDisplay { + mDisabledNeedsDisplay = NO; +} + +- (void)dealloc { + [mTouchBar release]; + [self removeTrackingArea]; + ChildViewMouseTracker::OnDestroyWindow(self); + [super dealloc]; +} + +static const NSString* kStateTitleKey = @"title"; +static const NSString* kStateDrawsContentsIntoWindowFrameKey = @"drawsContentsIntoWindowFrame"; +static const NSString* kStateShowsToolbarButton = @"showsToolbarButton"; +static const NSString* kStateCollectionBehavior = @"collectionBehavior"; +static const NSString* kStateWantsTitleDrawn = @"wantsTitleDrawn"; + +- (void)importState:(NSDictionary*)aState { + if (NSString* title = [aState objectForKey:kStateTitleKey]) { + [self setTitle:title]; + } + [self setDrawsContentsIntoWindowFrame:[[aState objectForKey:kStateDrawsContentsIntoWindowFrameKey] + boolValue]]; + [self setShowsToolbarButton:[[aState objectForKey:kStateShowsToolbarButton] boolValue]]; + [self setCollectionBehavior:[[aState objectForKey:kStateCollectionBehavior] unsignedIntValue]]; + [self setWantsTitleDrawn:[[aState objectForKey:kStateWantsTitleDrawn] boolValue]]; +} + +- (NSMutableDictionary*)exportState { + NSMutableDictionary* state = [NSMutableDictionary dictionaryWithCapacity:10]; + if (NSString* title = [self title]) { + [state setObject:title forKey:kStateTitleKey]; + } + [state setObject:[NSNumber numberWithBool:[self drawsContentsIntoWindowFrame]] + forKey:kStateDrawsContentsIntoWindowFrameKey]; + [state setObject:[NSNumber numberWithBool:[self showsToolbarButton]] + forKey:kStateShowsToolbarButton]; + [state setObject:[NSNumber numberWithUnsignedInt:[self collectionBehavior]] + forKey:kStateCollectionBehavior]; + [state setObject:[NSNumber numberWithBool:[self wantsTitleDrawn]] forKey:kStateWantsTitleDrawn]; + return state; +} + +- (void)setDrawsContentsIntoWindowFrame:(BOOL)aState { + bool changed = (aState != mDrawsIntoWindowFrame); + mDrawsIntoWindowFrame = aState; + if (changed) { + [self reflowTitlebarElements]; + } +} + +- (BOOL)drawsContentsIntoWindowFrame { + return mDrawsIntoWindowFrame; +} + +- (NSRect)childViewRectForFrameRect:(NSRect)aFrameRect { + if (mDrawsIntoWindowFrame) { + return aFrameRect; + } + NSUInteger styleMask = [self styleMask]; + styleMask &= ~NSWindowStyleMaskFullSizeContentView; + return [NSWindow contentRectForFrameRect:aFrameRect styleMask:styleMask]; +} + +- (NSRect)frameRectForChildViewRect:(NSRect)aChildViewRect { + if (mDrawsIntoWindowFrame) { + return aChildViewRect; + } + NSUInteger styleMask = [self styleMask]; + styleMask &= ~NSWindowStyleMaskFullSizeContentView; + return [NSWindow frameRectForContentRect:aChildViewRect styleMask:styleMask]; +} + +- (NSTimeInterval)animationResizeTime:(NSRect)newFrame { + if (mIsAnimationSuppressed) { + // Should not animate the initial session-restore size change + return 0.0; + } + + return [super animationResizeTime:newFrame]; +} + +- (void)setWantsTitleDrawn:(BOOL)aDrawTitle { + mDrawTitle = aDrawTitle; + [self setTitleVisibility:mDrawTitle ? NSWindowTitleVisible : NSWindowTitleHidden]; +} + +- (BOOL)wantsTitleDrawn { + return mDrawTitle; +} + +- (NSView*)trackingAreaView { + NSView* contentView = [self contentView]; + return [contentView superview] ? [contentView superview] : contentView; +} + +- (NSArray<NSView*>*)contentViewContents { + return [[[[self contentView] subviews] copy] autorelease]; +} + +- (ChildView*)mainChildView { + NSView* contentView = [self contentView]; + NSView* lastView = [[contentView subviews] lastObject]; + if ([lastView isKindOfClass:[ChildView class]]) { + return (ChildView*)lastView; + } + return nil; +} + +- (void)removeTrackingArea { + if (mTrackingArea) { + [[self trackingAreaView] removeTrackingArea:mTrackingArea]; + [mTrackingArea release]; + mTrackingArea = nil; + } +} + +- (void)updateTrackingArea { + [self removeTrackingArea]; + + NSView* view = [self trackingAreaView]; + const NSTrackingAreaOptions options = + NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways; + mTrackingArea = [[NSTrackingArea alloc] initWithRect:[view bounds] + options:options + owner:self + userInfo:nil]; + [view addTrackingArea:mTrackingArea]; +} + +- (void)mouseEntered:(NSEvent*)aEvent { + ChildViewMouseTracker::MouseEnteredWindow(aEvent); +} + +- (void)mouseExited:(NSEvent*)aEvent { + ChildViewMouseTracker::MouseExitedWindow(aEvent); +} + +- (void)mouseMoved:(NSEvent*)aEvent { + ChildViewMouseTracker::MouseMoved(aEvent); +} + +- (void)cursorUpdated:(NSEvent*)aEvent { + // Nothing to do here, but NSTrackingArea wants us to implement this method. +} + +- (void)_setNeedsDisplayInRect:(NSRect)aRect { + // Prevent unnecessary invalidations due to moving NSViews (e.g. for plugins) + if (!mDisabledNeedsDisplay) { + // This method is only called by Cocoa, so when we're here, we know that + // it's available and don't need to check whether our superclass responds + // to the selector. + [super _setNeedsDisplayInRect:aRect]; + mDirtyRect = NSUnionRect(mDirtyRect, aRect); + } +} + +- (NSRect)getAndResetNativeDirtyRect { + NSRect dirtyRect = mDirtyRect; + mDirtyRect = NSZeroRect; + return dirtyRect; +} + +// Possibly move the titlebar buttons. +- (void)reflowTitlebarElements { + NSView* frameView = [[self contentView] superview]; + if ([frameView respondsToSelector:@selector(_tileTitlebarAndRedisplay:)]) { + [frameView _tileTitlebarAndRedisplay:NO]; + } +} + +- (BOOL)respondsToSelector:(SEL)aSelector { + // Claim the window doesn't respond to this so that the system + // doesn't steal keyboard equivalents for it. Bug 613710. + if (aSelector == @selector(cancelOperation:)) { + return NO; + } + + return [super respondsToSelector:aSelector]; +} + +- (void)doCommandBySelector:(SEL)aSelector { + // We override this so that it won't beep if it can't act. + // We want to control the beeping for missing or disabled + // commands ourselves. + [self tryToPerform:aSelector with:nil]; +} + +- (id)accessibilityAttributeValue:(NSString*)attribute { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + id retval = [super accessibilityAttributeValue:attribute]; + + // The following works around a problem with Text-to-Speech on OS X 10.7. + // See bug 674612 for more info. + // + // When accessibility is off, AXUIElementCopyAttributeValue(), when called + // on an AXApplication object to get its AXFocusedUIElement attribute, + // always returns an AXWindow object (the actual browser window -- never a + // mozAccessible object). This also happens with accessibility turned on, + // if no other object in the browser window has yet been focused. But if + // the browser window has a title bar (as it currently always does), the + // AXWindow object will always have four "accessible" children, one of which + // is an AXStaticText object (the title bar's "title"; the other three are + // the close, minimize and zoom buttons). This means that (for complicated + // reasons, for which see bug 674612) Text-to-Speech on OS X 10.7 will often + // "speak" the window title, no matter what text is selected, or even if no + // text at all is selected. (This always happens when accessibility is off. + // It doesn't happen in Firefox releases because Apple has (on OS X 10.7) + // special-cased the handling of apps whose CFBundleIdentifier is + // org.mozilla.firefox.) + // + // We work around this problem by only returning AXChildren that are + // mozAccessible object or are one of the titlebar's buttons (which + // instantiate subclasses of NSButtonCell). + if ([retval isKindOfClass:[NSArray class]] && [attribute isEqualToString:@"AXChildren"]) { + NSMutableArray* holder = [NSMutableArray arrayWithCapacity:10]; + [holder addObjectsFromArray:(NSArray*)retval]; + NSUInteger count = [holder count]; + for (NSInteger i = count - 1; i >= 0; --i) { + id item = [holder objectAtIndex:i]; + // Remove anything from holder that isn't one of the titlebar's buttons + // (which instantiate subclasses of NSButtonCell) or a mozAccessible + // object (or one of its subclasses). + if (![item isKindOfClass:[NSButtonCell class]] && + ![item respondsToSelector:@selector(hasRepresentedView)]) { + [holder removeObjectAtIndex:i]; + } + } + retval = [NSArray arrayWithArray:holder]; + } + + return retval; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (void)releaseJSObjects { + [mTouchBar releaseJSObjects]; +} + +@end + +@interface NSView (NSThemeFrame) +- (void)_drawTitleStringInClip:(NSRect)aRect; +- (void)_maskCorners:(NSUInteger)aFlags clipRect:(NSRect)aRect; +@end + +@implementation MOZTitlebarView + +- (instancetype)initWithFrame:(NSRect)aFrame { + self = [super initWithFrame:aFrame]; + + self.material = NSVisualEffectMaterialTitlebar; + self.blendingMode = NSVisualEffectBlendingModeWithinWindow; + + // Add a separator line at the bottom of the titlebar. NSBoxSeparator isn't a perfect match for + // a native titlebar separator, but it's better than nothing. + // We really want the appearance that _NSTitlebarDecorationView creates with the help of CoreUI, + // but there's no public API for that. + NSBox* separatorLine = [[NSBox alloc] initWithFrame:NSMakeRect(0, 0, aFrame.size.width, 1)]; + separatorLine.autoresizingMask = NSViewWidthSizable | NSViewMaxYMargin; + separatorLine.boxType = NSBoxSeparator; + [self addSubview:separatorLine]; + [separatorLine release]; + + return self; +} + +- (BOOL)mouseDownCanMoveWindow { + return YES; +} + +- (void)mouseUp:(NSEvent*)event { + if ([event clickCount] == 2) { + // Handle titlebar double click. We don't get the window's default behavior here because the + // window uses NSWindowStyleMaskFullSizeContentView, and this view (the titlebar gradient view) + // is technically part of the window "contents" (it's a subview of the content view). + if (nsCocoaUtils::ShouldZoomOnTitlebarDoubleClick()) { + [[self window] performZoom:nil]; + } else if (nsCocoaUtils::ShouldMinimizeOnTitlebarDoubleClick()) { + [[self window] performMiniaturize:nil]; + } + } +} + +@end + +@interface MOZTitlebarAccessoryView : NSView +@end + +@implementation MOZTitlebarAccessoryView : NSView +- (void)viewWillMoveToWindow:(NSWindow*)aWindow { + if (aWindow) { + // When entering full screen mode, titlebar accessory views are inserted + // into a floating NSWindow which houses the window titlebar and toolbars. + // In order to work around a drawing bug with titlebarAppearsTransparent + // windows in full screen mode, disable titlebar separators for all + // NSWindows that this view is used in, including the floating full screen + // toolbar window. The drawing bug was filed as FB9056136. See bug 1700211 + // for more details. +#if !defined(MAC_OS_VERSION_11_0) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_VERSION_11_0 + if (nsCocoaFeatures::OnBigSurOrLater()) { +#else + if (@available(macOS 11.0, *)) { +#endif + aWindow.titlebarSeparatorStyle = NSTitlebarSeparatorStyleNone; + } + } +} +@end + +@implementation FullscreenTitlebarTracker +- (FullscreenTitlebarTracker*)init { + [super init]; + self.view = [[[MOZTitlebarAccessoryView alloc] initWithFrame:NSZeroRect] autorelease]; + self.hidden = YES; + return self; +} +@end + +// This class allows us to exercise control over the window's title bar. It is +// used for all windows with titlebars. +// +// ToolbarWindow supports two modes: +// - drawsContentsIntoWindowFrame mode: In this mode, the Gecko ChildView is +// sized to cover the entire window frame and manages titlebar drawing. +// - separate titlebar mode, with support for unified toolbars: In this mode, +// the Gecko ChildView does not extend into the titlebar. However, this +// window's content view (which is the ChildView's superview) *does* extend +// into the titlebar. Moreover, in this mode, we place a MOZTitlebarView +// in the content view, as a sibling of the ChildView. +// +// The "separate titlebar mode" supports the "unified toolbar" look: +// If there's a toolbar right below the titlebar, the two can "connect" and +// form a single gradient without a separator line in between. +// +// The following mechanism communicates the height of the unified toolbar to +// the ToolbarWindow: +// +// 1) In the style sheet we set the toolbar's -moz-appearance to toolbar. +// 2) When the toolbar is visible and we paint the application chrome +// window, the array that Gecko passes nsChildView::UpdateThemeGeometries +// will contain an entry for the widget type StyleAppearance::Toolbar. +// 3) nsChildView::UpdateThemeGeometries passes the toolbar's height, plus the +// titlebar height, to -[ToolbarWindow setUnifiedToolbarHeight:]. +// +// The actual drawing of the gradient happens in two parts: The titlebar part +// (i.e. the top 22 pixels of the gradient) is drawn by the MOZTitlebarView, +// which is a subview of the window's content view and a sibling of the ChildView. +// The rest of the gradient is drawn by Gecko into the ChildView, as part of the +// -moz-appearance rendering of the toolbar. +@implementation ToolbarWindow + +- (id)initWithContentRect:(NSRect)aChildViewRect + styleMask:(NSUInteger)aStyle + backing:(NSBackingStoreType)aBufferingType + defer:(BOOL)aFlag { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + // We treat aChildViewRect as the rectangle that the window's main ChildView + // should be sized to. Get the right frameRect for the requested child view + // rect. + NSRect frameRect = [NSWindow frameRectForContentRect:aChildViewRect styleMask:aStyle]; + + // Always size the content view to the full frame size of the window. + // We do this even if we want this window to have a titlebar; in that case, the window's content + // view covers the entire window but the ChildView inside it will only cover the content area. We + // do this so that we can render the titlebar gradient manually, with a subview of our content + // view that's positioned in the titlebar area. This lets us have a smooth connection between + // titlebar and toolbar gradient in case the window has a "unified toolbar + titlebar" look. + // Moreover, always using a full size content view lets us toggle the titlebar on and off without + // changing the window's style mask (which would have other subtle effects, for example on + // keyboard focus). + aStyle |= NSWindowStyleMaskFullSizeContentView; + + // -[NSWindow initWithContentRect:styleMask:backing:defer:] calls + // [self frameRectForContentRect:styleMask:] to convert the supplied content + // rect to the window's frame rect. We've overridden that method to be a + // pass-through function. So, in order to get the intended frameRect, we need + // to supply frameRect itself as the "content rect". + NSRect contentRect = frameRect; + + if ((self = [super initWithContentRect:contentRect + styleMask:aStyle + backing:aBufferingType + defer:aFlag])) { + mTitlebarView = nil; + mUnifiedToolbarHeight = 22.0f; + mSheetAttachmentPosition = aChildViewRect.size.height; + mWindowButtonsRect = NSZeroRect; + mInitialTitlebarHeight = [self titlebarHeight]; + + [self setTitlebarAppearsTransparent:YES]; +#if !defined(MAC_OS_VERSION_11_0) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_VERSION_11_0 + if (nsCocoaFeatures::OnBigSurOrLater()) { +#else + if (@available(macOS 11.0, *)) { +#endif + self.titlebarSeparatorStyle = NSTitlebarSeparatorStyleNone; + } + [self updateTitlebarView]; + + mFullscreenTitlebarTracker = [[FullscreenTitlebarTracker alloc] init]; + // revealAmount is an undocumented property of + // NSTitlebarAccessoryViewController that updates whenever the menubar + // slides down in fullscreen mode. + [mFullscreenTitlebarTracker addObserver:self + forKeyPath:@"revealAmount" + options:NSKeyValueObservingOptionNew + context:nil]; + // Adding this accessory view controller allows us to shift the toolbar down + // when the user mouses to the top of the screen in fullscreen. + [(NSWindow*)self addTitlebarAccessoryViewController:mFullscreenTitlebarTracker]; + } + return self; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (void)observeValueForKeyPath:(NSString*)keyPath + ofObject:(id)object + change:(NSDictionary<NSKeyValueChangeKey, id>*)change + context:(void*)context { + if ([keyPath isEqualToString:@"revealAmount"]) { + [[self mainChildView] ensureNextCompositeIsAtomicWithMainThreadPaint]; + NSNumber* revealAmount = (change[NSKeyValueChangeNewKey]); + [self updateTitlebarShownAmount:[revealAmount doubleValue]]; + } else { + [super observeValueForKeyPath:keyPath ofObject:object change:change context:context]; + } +} + +static bool ScreenHasNotch(nsCocoaWindow* aGeckoWindow) { + if (@available(macOS 12.0, *)) { + nsCOMPtr<nsIScreen> widgetScreen = aGeckoWindow->GetWidgetScreen(); + NSScreen* cocoaScreen = ScreenHelperCocoa::CocoaScreenForScreen(widgetScreen); + return cocoaScreen.safeAreaInsets.top != 0.0f; + } + return false; +} + +static bool ShouldShiftByMenubarHeightInFullscreen(nsCocoaWindow* aWindow) { + switch (StaticPrefs::widget_macos_shift_by_menubar_on_fullscreen()) { + case 0: + return false; + case 1: + return true; + default: + break; + } + // TODO: On notch-less macbooks, this creates extra space when the + // "automatically show and hide the menubar on fullscreen" option is unchecked + // (default checked). We tried to detect that in bug 1737831 but it wasn't + // reliable enough, see the regressions from that bug. For now, stick to the + // good behavior for default configurations (that is, shift by menubar height + // on notch-less macbooks, and don't for devices that have a notch). This will + // need refinement in the future. + return !ScreenHasNotch(aWindow); +} + +- (void)updateTitlebarShownAmount:(CGFloat)aShownAmount { + NSInteger styleMask = [self styleMask]; + if (!(styleMask & NSWindowStyleMaskFullScreen)) { + // We are not interested in the size of the titlebar unless we are in + // fullscreen. + return; + } + + // [NSApp mainMenu] menuBarHeight] returns one of two values: the full height + // if the menubar is shown or is in the process of being shown, and 0 + // otherwise. Since we are multiplying the menubar height by aShownAmount, we + // always want the full height. + CGFloat menuBarHeight = NSApp.mainMenu.menuBarHeight; + if (menuBarHeight > 0.0f) { + mMenuBarHeight = menuBarHeight; + } + if ([[self delegate] isKindOfClass:[WindowDelegate class]]) { + WindowDelegate* windowDelegate = (WindowDelegate*)[self delegate]; + nsCocoaWindow* geckoWindow = [windowDelegate geckoWidget]; + if (!geckoWindow) { + return; + } + + if (nsIWidgetListener* listener = geckoWindow->GetWidgetListener()) { + // Use the titlebar height cached in our frame rather than + // [ToolbarWindow titlebarHeight]. titlebarHeight returns 0 when we're in + // fullscreen. + CGFloat shiftByPixels = mInitialTitlebarHeight * aShownAmount; + if (ShouldShiftByMenubarHeightInFullscreen(geckoWindow)) { + shiftByPixels += mMenuBarHeight * aShownAmount; + } + // Use mozilla::DesktopToLayoutDeviceScale rather than the + // DesktopToLayoutDeviceScale in nsCocoaWindow. The latter accounts for + // screen DPI. We don't want that because the revealAmount property + // already accounts for it, so we'd be compounding DPI scales > 1. + mozilla::DesktopCoord coord = + LayoutDeviceCoord(shiftByPixels) / mozilla::DesktopToLayoutDeviceScale(); + + listener->MacFullscreenMenubarOverlapChanged(coord); + } + } +} + +- (void)dealloc { + [mTitlebarView release]; + [mFullscreenTitlebarTracker removeObserver:self forKeyPath:@"revealAmount"]; + [mFullscreenTitlebarTracker removeFromParentViewController]; + [mFullscreenTitlebarTracker release]; + + [super dealloc]; +} + +- (NSArray<NSView*>*)contentViewContents { + NSMutableArray<NSView*>* contents = [[[self contentView] subviews] mutableCopy]; + if (mTitlebarView) { + // Do not include the titlebar gradient view in the returned array. + [contents removeObject:mTitlebarView]; + } + return [contents autorelease]; +} + +- (void)updateTitlebarView { + BOOL needTitlebarView = ![self drawsContentsIntoWindowFrame] || mUnifiedToolbarHeight > 0; + if (needTitlebarView && !mTitlebarView) { + mTitlebarView = [[MOZTitlebarView alloc] initWithFrame:[self unifiedToolbarRect]]; + mTitlebarView.autoresizingMask = NSViewWidthSizable | NSViewMinYMargin; + [self.contentView addSubview:mTitlebarView positioned:NSWindowBelow relativeTo:nil]; + } else if (needTitlebarView && mTitlebarView) { + mTitlebarView.frame = [self unifiedToolbarRect]; + } else if (!needTitlebarView && mTitlebarView) { + [mTitlebarView removeFromSuperview]; + [mTitlebarView release]; + mTitlebarView = nil; + } +} + +- (void)windowMainStateChanged { + [self setTitlebarNeedsDisplay]; + [[self mainChildView] ensureNextCompositeIsAtomicWithMainThreadPaint]; +} + +- (void)setTitlebarNeedsDisplay { + [mTitlebarView setNeedsDisplay:YES]; +} + +- (NSRect)titlebarRect { + CGFloat titlebarHeight = [self titlebarHeight]; + return NSMakeRect(0, [self frame].size.height - titlebarHeight, [self frame].size.width, + titlebarHeight); +} + +// In window contentView coordinates (origin bottom left) +- (NSRect)unifiedToolbarRect { + return NSMakeRect(0, [self frame].size.height - mUnifiedToolbarHeight, [self frame].size.width, + mUnifiedToolbarHeight); +} + +// Returns the unified height of titlebar + toolbar. +- (CGFloat)unifiedToolbarHeight { + return mUnifiedToolbarHeight; +} + +- (CGFloat)titlebarHeight { + // We use the original content rect here, not what we return from + // [self contentRectForFrameRect:], because that would give us a + // titlebarHeight of zero. + NSRect frameRect = [self frame]; + NSUInteger styleMask = [self styleMask]; + styleMask &= ~NSWindowStyleMaskFullSizeContentView; + NSRect originalContentRect = [NSWindow contentRectForFrameRect:frameRect styleMask:styleMask]; + return NSMaxY(frameRect) - NSMaxY(originalContentRect); +} + +// Stores the complete height of titlebar + toolbar. +- (void)setUnifiedToolbarHeight:(CGFloat)aHeight { + if (aHeight == mUnifiedToolbarHeight) return; + + mUnifiedToolbarHeight = aHeight; + + [self updateTitlebarView]; +} + +// Extending the content area into the title bar works by resizing the +// mainChildView so that it covers the titlebar. +- (void)setDrawsContentsIntoWindowFrame:(BOOL)aState { + BOOL stateChanged = ([self drawsContentsIntoWindowFrame] != aState); + [super setDrawsContentsIntoWindowFrame:aState]; + if (stateChanged && [[self delegate] isKindOfClass:[WindowDelegate class]]) { + // Here we extend / shrink our mainChildView. We do that by firing a resize + // event which will cause the ChildView to be resized to the rect returned + // by nsCocoaWindow::GetClientBounds. GetClientBounds bases its return + // value on what we return from drawsContentsIntoWindowFrame. + WindowDelegate* windowDelegate = (WindowDelegate*)[self delegate]; + nsCocoaWindow* geckoWindow = [windowDelegate geckoWidget]; + if (geckoWindow) { + // Re-layout our contents. + geckoWindow->ReportSizeEvent(); + } + + // Resizing the content area causes a reflow which would send a synthesized + // mousemove event to the old mouse position relative to the top left + // corner of the content area. But the mouse has shifted relative to the + // content area, so that event would have wrong position information. So + // we'll send a mouse move event with the correct new position. + ChildViewMouseTracker::ResendLastMouseMoveEvent(); + } + + [self updateTitlebarView]; +} + +- (void)setWantsTitleDrawn:(BOOL)aDrawTitle { + [super setWantsTitleDrawn:aDrawTitle]; + [self setTitlebarNeedsDisplay]; +} + +- (void)setSheetAttachmentPosition:(CGFloat)aY { + mSheetAttachmentPosition = aY; +} + +- (CGFloat)sheetAttachmentPosition { + return mSheetAttachmentPosition; +} + +- (void)placeWindowButtons:(NSRect)aRect { + if (!NSEqualRects(mWindowButtonsRect, aRect)) { + mWindowButtonsRect = aRect; + [self reflowTitlebarElements]; + } +} + +- (NSRect)windowButtonsRect { + return mWindowButtonsRect; +} + +// Returning YES here makes the setShowsToolbarButton method work even though +// the window doesn't contain an NSToolbar. +- (BOOL)_hasToolbar { + return YES; +} + +// Dispatch a toolbar pill button clicked message to Gecko. +- (void)_toolbarPillButtonClicked:(id)sender { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + RollUpPopups(); + + if ([[self delegate] isKindOfClass:[WindowDelegate class]]) { + WindowDelegate* windowDelegate = (WindowDelegate*)[self delegate]; + nsCocoaWindow* geckoWindow = [windowDelegate geckoWidget]; + if (!geckoWindow) return; + + nsIWidgetListener* listener = geckoWindow->GetWidgetListener(); + if (listener) listener->OSToolbarButtonPressed(); + } + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// Retain and release "self" to avoid crashes when our widget (and its native +// window) is closed as a result of processing a key equivalent (e.g. +// Command+w or Command+q). This workaround is only needed for a window +// that can become key. +- (BOOL)performKeyEquivalent:(NSEvent*)theEvent { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + NSWindow* nativeWindow = [self retain]; + BOOL retval = [super performKeyEquivalent:theEvent]; + [nativeWindow release]; + return retval; + + NS_OBJC_END_TRY_BLOCK_RETURN(NO); +} + +- (void)sendEvent:(NSEvent*)anEvent { + NSEventType type = [anEvent type]; + + switch (type) { + case NSEventTypeScrollWheel: + case NSEventTypeLeftMouseDown: + case NSEventTypeLeftMouseUp: + case NSEventTypeRightMouseDown: + case NSEventTypeRightMouseUp: + case NSEventTypeOtherMouseDown: + case NSEventTypeOtherMouseUp: + case NSEventTypeMouseMoved: + case NSEventTypeLeftMouseDragged: + case NSEventTypeRightMouseDragged: + case NSEventTypeOtherMouseDragged: { + // Drop all mouse events if a modal window has appeared above us. + // This helps make us behave as if the OS were running a "real" modal + // event loop. + id delegate = [self delegate]; + if (delegate && [delegate isKindOfClass:[WindowDelegate class]]) { + nsCocoaWindow* widget = [(WindowDelegate*)delegate geckoWidget]; + if (widget) { + if (gGeckoAppModalWindowList && (widget != gGeckoAppModalWindowList->window)) return; + if (widget->HasModalDescendents()) return; + } + } + break; + } + default: + break; + } + + [super sendEvent:anEvent]; +} + +@end + +@implementation PopupWindow + +- (id)initWithContentRect:(NSRect)contentRect + styleMask:(NSUInteger)styleMask + backing:(NSBackingStoreType)bufferingType + defer:(BOOL)deferCreation { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + mIsContextMenu = false; + return [super initWithContentRect:contentRect + styleMask:styleMask + backing:bufferingType + defer:deferCreation]; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +// Override the private API _backdropBleedAmount. This determines how much the +// desktop wallpaper contributes to the vibrancy backdrop. +// Return 0 in order to match what the system does for sheet windows and +// _NSPopoverWindows. +- (CGFloat)_backdropBleedAmount { + return 0.0; +} + +// Override the private API shadowOptions. +// The constants below were found in AppKit's implementations of the +// shadowOptions method on the various window types. +static const NSUInteger kWindowShadowOptionsNoShadow = 0; +static const NSUInteger kWindowShadowOptionsMenu = 2; +static const NSUInteger kWindowShadowOptionsTooltipMojaveOrLater = 4; +- (NSUInteger)shadowOptions { + if (!self.hasShadow) { + return kWindowShadowOptionsNoShadow; + } + + switch (self.shadowStyle) { + case StyleWindowShadow::None: + return kWindowShadowOptionsNoShadow; + + case StyleWindowShadow::Default: // we treat "default" as "default panel" + case StyleWindowShadow::Menu: + return kWindowShadowOptionsMenu; + + case StyleWindowShadow::Tooltip: + if (nsCocoaFeatures::OnMojaveOrLater()) { + return kWindowShadowOptionsTooltipMojaveOrLater; + } + return kWindowShadowOptionsMenu; + } +} + +- (BOOL)isContextMenu { + return mIsContextMenu; +} + +- (void)setIsContextMenu:(BOOL)flag { + mIsContextMenu = flag; +} + +- (BOOL)canBecomeMainWindow { + // This is overriden because the default is 'yes' when a titlebar is present. + return NO; +} + +@end + +// According to Apple's docs on [NSWindow canBecomeKeyWindow] and [NSWindow +// canBecomeMainWindow], windows without a title bar or resize bar can't (by +// default) become key or main. But if a window can't become key, it can't +// accept keyboard input (bmo bug 393250). And it should also be possible for +// an otherwise "ordinary" window to become main. We need to override these +// two methods to make this happen. +@implementation BorderlessWindow + +- (BOOL)canBecomeKeyWindow { + return YES; +} + +- (void)sendEvent:(NSEvent*)anEvent { + NSEventType type = [anEvent type]; + + switch (type) { + case NSEventTypeScrollWheel: + case NSEventTypeLeftMouseDown: + case NSEventTypeLeftMouseUp: + case NSEventTypeRightMouseDown: + case NSEventTypeRightMouseUp: + case NSEventTypeOtherMouseDown: + case NSEventTypeOtherMouseUp: + case NSEventTypeMouseMoved: + case NSEventTypeLeftMouseDragged: + case NSEventTypeRightMouseDragged: + case NSEventTypeOtherMouseDragged: { + // Drop all mouse events if a modal window has appeared above us. + // This helps make us behave as if the OS were running a "real" modal + // event loop. + id delegate = [self delegate]; + if (delegate && [delegate isKindOfClass:[WindowDelegate class]]) { + nsCocoaWindow* widget = [(WindowDelegate*)delegate geckoWidget]; + if (widget) { + if (gGeckoAppModalWindowList && (widget != gGeckoAppModalWindowList->window)) return; + if (widget->HasModalDescendents()) return; + } + } + break; + } + default: + break; + } + + [super sendEvent:anEvent]; +} + +// Apple's doc on this method says that the NSWindow class's default is not to +// become main if the window isn't "visible" -- so we should replicate that +// behavior here. As best I can tell, the [NSWindow isVisible] method is an +// accurate test of what Apple means by "visibility". +- (BOOL)canBecomeMainWindow { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + if (![self isVisible]) return NO; + return YES; + + NS_OBJC_END_TRY_BLOCK_RETURN(NO); +} + +// Retain and release "self" to avoid crashes when our widget (and its native +// window) is closed as a result of processing a key equivalent (e.g. +// Command+w or Command+q). This workaround is only needed for a window +// that can become key. +- (BOOL)performKeyEquivalent:(NSEvent*)theEvent { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + NSWindow* nativeWindow = [self retain]; + BOOL retval = [super performKeyEquivalent:theEvent]; + [nativeWindow release]; + return retval; + + NS_OBJC_END_TRY_BLOCK_RETURN(NO); +} + +@end |