summaryrefslogtreecommitdiff
path: root/widget/cocoa/nsWindowMap.mm
blob: c43b024086a3c381b446d03eb66c82c1f77e555d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
/* -*- 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_ABORT_BLOCK_NIL;

  static WindowDataMap* sWindowMap = nil;
  if (!sWindowMap)
    sWindowMap = [[WindowDataMap alloc] init];

  return sWindowMap;

  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}

- (id)init
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

  if ((self = [super init])) {
    mWindowMap = [[NSMutableDictionary alloc] initWithCapacity:10];
  }
  return self;

  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}

- (void)dealloc
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK;

  [mWindowMap release];
  [super dealloc];

  NS_OBJC_END_TRY_ABORT_BLOCK;
}

- (void)ensureDataForWindow:(NSWindow*)inWindow
{
  NS_OBJC_BEGIN_TRY_ABORT_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_ABORT_BLOCK;
}

- (id)dataForWindow:(NSWindow*)inWindow
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

  return [mWindowMap objectForKey:[self keyForWindow:inWindow]];

  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}

- (void)setData:(id)inData forWindow:(NSWindow*)inWindow
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK;

  [mWindowMap setObject:inData forKey:[self keyForWindow:inWindow]];

  NS_OBJC_END_TRY_ABORT_BLOCK;
}

- (void)removeDataForWindow:(NSWindow*)inWindow
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK;

  [mWindowMap removeObjectForKey:[self keyForWindow:inWindow]];

  NS_OBJC_END_TRY_ABORT_BLOCK;
}

- (NSString*)keyForWindow:(NSWindow*)inWindow
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

  return [NSString stringWithFormat:@"%p", inWindow];

  NS_OBJC_END_TRY_ABORT_BLOCK_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_ABORT_BLOCK_NIL;

  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_ABORT_BLOCK_NIL;
}

- (void)dealloc
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK;

  [[NSNotificationCenter defaultCenter] removeObserver:self];
  [super dealloc];

  NS_OBJC_END_TRY_ABORT_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_ABORT_BLOCK;

  WindowDelegate* delegate = (WindowDelegate*) [aWindow delegate];
  if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]])
    return;

  if ([delegate toplevelActiveState])
    return;
  [delegate sendToplevelActivateEvents];

  NS_OBJC_END_TRY_ABORT_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_ABORT_BLOCK;

  WindowDelegate* delegate = (WindowDelegate*) [aWindow delegate];
  if (!delegate || ![delegate isKindOfClass:[WindowDelegate class]])
    return;

  if (![delegate toplevelActiveState])
    return;
  [delegate sendToplevelDeactivateEvents];

  NS_OBJC_END_TRY_ABORT_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_ABORT_BLOCK;

  id firstResponder = [aWindow firstResponder];
  if ([firstResponder isKindOfClass:[ChildView class]])
    [firstResponder viewsWindowDidBecomeKey];

  NS_OBJC_END_TRY_ABORT_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_ABORT_BLOCK;

  id firstResponder = [aWindow firstResponder];
  if ([firstResponder isKindOfClass:[ChildView class]])
    [firstResponder viewsWindowDidResignKey];

  NS_OBJC_END_TRY_ABORT_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]) {
    [TopLevelWindowData activateInWindow:window];
  }

  [[window contentView] setNeedsDisplay:YES];
}

- (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]) {
    [TopLevelWindowData deactivateInWindow:window];
  }

  [[window contentView] setNeedsDisplay:YES];
}

// 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 open above it --
  // as far as Gecko is concerned, it's inactive, and stays so until the sheet
  // closes.
  if (delegate && [delegate isKindOfClass:[WindowDelegate class]] && ![window attachedSheet])
    [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_ABORT_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_ABORT_BLOCK;
}

@end