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Diffstat (limited to 'widget/cocoa/nsWindowMap.mm')
| -rw-r--r-- | widget/cocoa/nsWindowMap.mm | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/widget/cocoa/nsWindowMap.mm b/widget/cocoa/nsWindowMap.mm new file mode 100644 index 0000000000..010ed76cd7 --- /dev/null +++ b/widget/cocoa/nsWindowMap.mm @@ -0,0 +1,281 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsWindowMap.h" +#include "nsObjCExceptions.h" +#include "nsChildView.h" +#include "nsCocoaWindow.h" + +@interface WindowDataMap (Private) + +- (NSString*)keyForWindow:(NSWindow*)inWindow; + +@end + +@interface TopLevelWindowData (Private) + +- (void)windowResignedKey:(NSNotification*)inNotification; +- (void)windowBecameKey:(NSNotification*)inNotification; +- (void)windowWillClose:(NSNotification*)inNotification; + +@end + +#pragma mark - + +@implementation WindowDataMap + ++ (WindowDataMap*)sharedWindowDataMap { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + static WindowDataMap* sWindowMap = nil; + if (!sWindowMap) sWindowMap = [[WindowDataMap alloc] init]; + + return sWindowMap; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (id)init { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + if ((self = [super init])) { + mWindowMap = [[NSMutableDictionary alloc] initWithCapacity:10]; + } + return self; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (void)dealloc { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + [mWindowMap release]; + [super dealloc]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (void)ensureDataForWindow:(NSWindow*)inWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + if (!inWindow || [self dataForWindow:inWindow]) return; + + TopLevelWindowData* windowData = [[TopLevelWindowData alloc] initWithWindow:inWindow]; + [self setData:windowData forWindow:inWindow]; // takes ownership + [windowData release]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (id)dataForWindow:(NSWindow*)inWindow { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + return [mWindowMap objectForKey:[self keyForWindow:inWindow]]; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (void)setData:(id)inData forWindow:(NSWindow*)inWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + [mWindowMap setObject:inData forKey:[self keyForWindow:inWindow]]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (void)removeDataForWindow:(NSWindow*)inWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + [mWindowMap removeObjectForKey:[self keyForWindow:inWindow]]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +- (NSString*)keyForWindow:(NSWindow*)inWindow { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + return [NSString stringWithFormat:@"%p", inWindow]; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +@end + +// TopLevelWindowData +// +// This class holds data about top-level windows. We can't use a window +// delegate, because an embedder may already have one. + +@implementation TopLevelWindowData + +- (id)initWithWindow:(NSWindow*)inWindow { + NS_OBJC_BEGIN_TRY_BLOCK_RETURN; + + if ((self = [super init])) { + [[NSNotificationCenter defaultCenter] addObserver:self + selector:@selector(windowBecameKey:) + name:NSWindowDidBecomeKeyNotification + object:inWindow]; + + [[NSNotificationCenter defaultCenter] addObserver:self + selector:@selector(windowResignedKey:) + name:NSWindowDidResignKeyNotification + object:inWindow]; + + [[NSNotificationCenter defaultCenter] addObserver:self + selector:@selector(windowBecameMain:) + name:NSWindowDidBecomeMainNotification + object:inWindow]; + + [[NSNotificationCenter defaultCenter] addObserver:self + selector:@selector(windowResignedMain:) + name:NSWindowDidResignMainNotification + object:inWindow]; + + [[NSNotificationCenter defaultCenter] addObserver:self + selector:@selector(windowWillClose:) + name:NSWindowWillCloseNotification + object:inWindow]; + } + return self; + + NS_OBJC_END_TRY_BLOCK_RETURN(nil); +} + +- (void)dealloc { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + [[NSNotificationCenter defaultCenter] removeObserver:self]; + [super dealloc]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// As best I can tell, if the notification's object has a corresponding +// top-level widget (an nsCocoaWindow object), it has a delegate (set in +// nsCocoaWindow::StandardCreate()) of class WindowDelegate, and otherwise +// not (Camino didn't use top-level widgets (nsCocoaWindow objects) -- +// only child widgets (nsChildView objects)). (The notification is sent +// to windowBecameKey: or windowBecameMain: below.) +// +// For use with clients that (like Firefox) do use top-level widgets (and +// have NSWindow delegates of class WindowDelegate). ++ (void)activateInWindow:(NSWindow*)aWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + WindowDelegate* delegate = (WindowDelegate*)[aWindow delegate]; + if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]]) return; + + if ([delegate toplevelActiveState]) return; + [delegate sendToplevelActivateEvents]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// See comments above activateInWindow: +// +// If we're using top-level widgets (nsCocoaWindow objects), we send them +// NS_DEACTIVATE events (which propagate to child widgets (nsChildView +// objects) via nsWebShellWindow::HandleEvent()). +// +// For use with clients that (like Firefox) do use top-level widgets (and +// have NSWindow delegates of class WindowDelegate). ++ (void)deactivateInWindow:(NSWindow*)aWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + WindowDelegate* delegate = (WindowDelegate*)[aWindow delegate]; + if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]]) return; + + if (![delegate toplevelActiveState]) return; + [delegate sendToplevelDeactivateEvents]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// For use with clients that (like Camino) don't use top-level widgets (and +// don't have NSWindow delegates of class WindowDelegate). ++ (void)activateInWindowViews:(NSWindow*)aWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + id firstResponder = [aWindow firstResponder]; + if ([firstResponder isKindOfClass:[ChildView class]]) [firstResponder viewsWindowDidBecomeKey]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// For use with clients that (like Camino) don't use top-level widgets (and +// don't have NSWindow delegates of class WindowDelegate). ++ (void)deactivateInWindowViews:(NSWindow*)aWindow { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + id firstResponder = [aWindow firstResponder]; + if ([firstResponder isKindOfClass:[ChildView class]]) [firstResponder viewsWindowDidResignKey]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +// We make certain exceptions for top-level windows in non-embedders (see +// comment above windowBecameMain below). And we need (elsewhere) to guard +// against sending duplicate events. But in general the NS_ACTIVATE event +// should be sent when a native window becomes key, and the NS_DEACTIVATE +// event should be sent when it resignes key. +- (void)windowBecameKey:(NSNotification*)inNotification { + NSWindow* window = (NSWindow*)[inNotification object]; + + id delegate = [window delegate]; + if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]]) { + [TopLevelWindowData activateInWindowViews:window]; + } else if ([window isSheet] || [NSApp modalWindow]) { + [TopLevelWindowData activateInWindow:window]; + } +} + +- (void)windowResignedKey:(NSNotification*)inNotification { + NSWindow* window = (NSWindow*)[inNotification object]; + + id delegate = [window delegate]; + if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]]) { + [TopLevelWindowData deactivateInWindowViews:window]; + } else if ([window isSheet] || [NSApp modalWindow]) { + [TopLevelWindowData deactivateInWindow:window]; + } +} + +// The appearance of a top-level window depends on its main state (not its key +// state). So (for non-embedders) we need to ensure that a top-level window +// is main when an NS_ACTIVATE event is sent to Gecko for it. +- (void)windowBecameMain:(NSNotification*)inNotification { + NSWindow* window = (NSWindow*)[inNotification object]; + + id delegate = [window delegate]; + // Don't send events to a top-level window that has a sheet/modal-window open + // above it -- as far as Gecko is concerned, it's inactive, and stays so until + // the sheet/modal-window closes. + if (delegate && [delegate isKindOfClass:[WindowDelegate class]] && + ![window attachedSheet] && ![NSApp modalWindow]) + [TopLevelWindowData activateInWindow:window]; +} + +- (void)windowResignedMain:(NSNotification*)inNotification { + NSWindow* window = (NSWindow*)[inNotification object]; + + id delegate = [window delegate]; + if (delegate && [delegate isKindOfClass:[WindowDelegate class]] && ![window attachedSheet]) + [TopLevelWindowData deactivateInWindow:window]; +} + +- (void)windowWillClose:(NSNotification*)inNotification { + NS_OBJC_BEGIN_TRY_IGNORE_BLOCK; + + // postpone our destruction + [[self retain] autorelease]; + + // remove ourselves from the window map (which owns us) + [[WindowDataMap sharedWindowDataMap] removeDataForWindow:[inNotification object]]; + + NS_OBJC_END_TRY_IGNORE_BLOCK; +} + +@end |