228 lines
8.3 KiB
Plaintext
228 lines
8.3 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Simon Fraser <smfr@smfr.org>
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* Josh Aas <josh@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsWindowMap.h"
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#include "nsChildView.h"
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#include "nsCocoaWindow.h"
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@interface WindowDataMap(Private)
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- (NSString*)keyForWindow:(NSWindow*)inWindow;
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@end
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@interface TopLevelWindowData(Private)
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- (void)windowResignedKey:(NSNotification*)inNotification;
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- (void)windowBecameKey:(NSNotification*)inNotification;
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- (void)windowWillClose:(NSNotification*)inNotification;
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@end
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#pragma mark -
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@implementation WindowDataMap
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+ (WindowDataMap*)sharedWindowDataMap
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{
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static WindowDataMap* sWindowMap = nil;
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if (!sWindowMap)
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sWindowMap = [[WindowDataMap alloc] init];
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return sWindowMap;
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}
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- (id)init
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{
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if ((self = [super init])) {
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mWindowMap = [[NSMutableDictionary alloc] initWithCapacity:10];
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}
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return self;
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}
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- (void)dealloc
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{
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[mWindowMap release];
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[super dealloc];
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}
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- (id)dataForWindow:(NSWindow*)inWindow
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{
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return [mWindowMap objectForKey:[self keyForWindow:inWindow]];
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}
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- (void)setData:(id)inData forWindow:(NSWindow*)inWindow
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{
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[mWindowMap setObject:inData forKey:[self keyForWindow:inWindow]];
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}
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- (void)removeDataForWindow:(NSWindow*)inWindow
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{
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[mWindowMap removeObjectForKey:[self keyForWindow:inWindow]];
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}
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- (NSString*)keyForWindow:(NSWindow*)inWindow
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{
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return [NSString stringWithFormat:@"%p", inWindow];
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}
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@end
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// TopLevelWindowData
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//
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// This class holds data about top-level windows. We can't use a window
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// delegate, because an embedder may already have one.
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@implementation TopLevelWindowData
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- (id)initWithWindow:(NSWindow*)inWindow
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{
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if ((self = [super init])) {
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(windowBecameKey:)
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name:NSWindowDidBecomeKeyNotification
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object:inWindow];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(windowResignedKey:)
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name:NSWindowDidResignKeyNotification
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object:inWindow];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(windowWillClose:)
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name:NSWindowWillCloseNotification
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object:inWindow];
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}
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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[super dealloc];
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}
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// As best I can tell, if the notification's object has a corresponding
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// top-level widget (an nsCocoaWindow object), it has a delegate (set in
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// nsCocoaWindow::StandardCreate()) that responds to sendFocusEvent:, and
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// otherwise not (Camino doesn't use top-level widgets (nsCocoaWindow
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// objects) -- only child widgets (nsChildView objects)).
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//
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// If we're using top-level widgets, we need to send them both kinds of
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// focus event (NS_GOTFOCUS and NS_ACTIVATE, which by convention are sent in
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// that order) -- otherwise text input can (under unusual circumstances) stop
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// working in the currently focused child widget (see bmo bug 354768).
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//
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// When we send focus events to a top-level widget, they get propagated
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// (via nsWebShellWindow::HandleEvent(), indirectly) to a child widget (an
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// nsChildView object) -- so in principle we shouldn't have to send them to
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// child widgets here. But I've found that, unless I also send at least an
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// NS_GOTFOCUS event directly to the currently focused child widget, it's
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// easy to get blinking I-bar cursors in multiple text input fields
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// (particularly if one of them is the Google search box). On other platforms
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// (e.g. Windows and GTK2), NS_ACTIVATE events are only sent (directly) to
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// top-level widgets -- so we do the same here. Not sending them directly
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// to child widgets also avoids "win is null" assertions on debug builds
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// (see bug 354768 comments 55 and 58).
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- (void)windowBecameKey:(NSNotification*)inNotification
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{
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NSWindow* window = (NSWindow*)[inNotification object];
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id delegate = [window delegate];
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if (delegate && [delegate respondsToSelector:@selector(sendFocusEvent:)]) {
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[delegate sendFocusEvent:NS_GOTFOCUS];
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[delegate sendFocusEvent:NS_ACTIVATE];
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id firstResponder = [window firstResponder];
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if ([firstResponder isKindOfClass:[ChildView class]]) {
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BOOL isMozWindow = [window respondsToSelector:@selector(setSuppressMakeKeyFront:)];
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if (isMozWindow)
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[window setSuppressMakeKeyFront:YES];
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[firstResponder sendFocusEvent:NS_GOTFOCUS];
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if (isMozWindow)
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[window setSuppressMakeKeyFront:NO];
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}
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} else {
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id firstResponder = [window firstResponder];
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if ([firstResponder isKindOfClass:[ChildView class]])
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[firstResponder viewsWindowDidBecomeKey];
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}
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}
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// See comments above windowBecameKey:
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//
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// If we're using top-level widgets (nsCocoaWindow objects), we send them
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// NS_DEACTIVATE events (which propagate to child widgets (nsChildView
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// objects) via nsWebShellWindow::HandleEvent()). Sending NS_LOSTFOCUS
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// events to top-level widgets currently has no effect (nsWebShellWindow::
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// HandleEvent(), which processes focus events sent to top-level widgets,
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// doesn't have a section for NS_LOSTFOCUS). But on general principles we
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// send them anyway.
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//
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// On other platforms (e.g. Windows and GTK2), NS_DEACTIVATE events are only
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// sent (directly) to top-level widgets. And (as noted above) these events
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// propagate to child widgets when they're sent to top-level widgets. But if
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// we don't send them again, blinking I-bar cursors can appear in multiple
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// text input fields. Since we also need to send NS_LOSTFOCUS events and
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// call nsTSMManager::CommitIME(), we just always call through to ChildView
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// viewsWindowDidResignKey (whether or not we're using top-level widgets).
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- (void)windowResignedKey:(NSNotification*)inNotification
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{
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NSWindow* window = (NSWindow*)[inNotification object];
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id delegate = [window delegate];
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if (delegate && [delegate respondsToSelector:@selector(sendFocusEvent:)]) {
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[delegate sendFocusEvent:NS_DEACTIVATE];
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[delegate sendFocusEvent:NS_LOSTFOCUS];
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}
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id firstResponder = [window firstResponder];
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if ([firstResponder isKindOfClass:[ChildView class]])
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[firstResponder viewsWindowDidResignKey];
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}
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- (void)windowWillClose:(NSNotification*)inNotification
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{
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// postpone our destruction
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[[self retain] autorelease];
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// remove ourselves from the window map (which owns us)
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[[WindowDataMap sharedWindowDataMap] removeDataForWindow:[inNotification object]];
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}
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@end
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