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