summaryrefslogtreecommitdiffstats
path: root/src/gui/kernel/qcocoawindowdelegate_mac.mm
blob: ebce6acab2caf630025f7477d1a38560be3c9cbf (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
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#import "private/qcocoawindowdelegate_mac_p.h"
#ifdef QT_MAC_USE_COCOA
#include <private/qwidget_p.h>
#include <private/qapplication_p.h>
#include <private/qt_cocoa_helpers_mac_p.h>
#include <qevent.h>
#include <qlayout.h>
#include <qcoreapplication.h>
#include <qmenubar.h>

QT_BEGIN_NAMESPACE
extern QWidgetData *qt_qwidget_data(QWidget *); // qwidget.cpp
extern void onApplicationWindowChangedActivation(QWidget *, bool); //qapplication_mac.mm
extern bool qt_sendSpontaneousEvent(QObject *, QEvent *); // qapplication.cpp
QT_END_NAMESPACE

QT_USE_NAMESPACE

static QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) *sharedCocoaWindowDelegate = nil;

// This is a singleton, but unlike most Cocoa singletons, it lives in a library and could be
// pontentially loaded and unloaded. This means we should at least attempt to do the
// memory management correctly.

static void cleanupCocoaWindowDelegate()
{
    [sharedCocoaWindowDelegate release];
}

@implementation QT_MANGLE_NAMESPACE(QCocoaWindowDelegate)

- (id)init
{
    self = [super init];
    if (self != nil) {
        m_windowHash = new QHash<NSWindow *, QWidget *>();
        m_drawerHash = new QHash<NSDrawer *, QWidget *>();
    }
    return self;
}

- (void)dealloc
{
    sharedCocoaWindowDelegate = nil;
    QHash<NSWindow *, QWidget *>::const_iterator windowIt = m_windowHash->constBegin();
    while (windowIt != m_windowHash->constEnd()) {
        [windowIt.key() setDelegate:nil];
        ++windowIt;
    }
    delete m_windowHash;
    QHash<NSDrawer *, QWidget *>::const_iterator drawerIt = m_drawerHash->constBegin();
    while (drawerIt != m_drawerHash->constEnd()) {
        [drawerIt.key() setDelegate:nil];
        ++drawerIt;
    }
    delete m_drawerHash;
    [super dealloc];
}

+ (id)allocWithZone:(NSZone *)zone
{
    @synchronized(self) {
        if (sharedCocoaWindowDelegate == nil) {
            sharedCocoaWindowDelegate = [super allocWithZone:zone];
            return sharedCocoaWindowDelegate;
            qAddPostRoutine(cleanupCocoaWindowDelegate);
        }
    }
    return nil;
}

+ (QT_MANGLE_NAMESPACE(QCocoaWindowDelegate)*)sharedDelegate
{
    @synchronized(self) {
        if (sharedCocoaWindowDelegate == nil)
            [[self alloc] init];
    }
    return [[sharedCocoaWindowDelegate retain] autorelease];
}

-(void)syncSizeForWidget:(QWidget *)qwidget toSize:(const QSize &)newSize fromSize:(const QSize &)oldSize
{
    qt_qwidget_data(qwidget)->crect.setSize(newSize);
    // ### static contents optimization needs to go here
    const OSViewRef view = qt_mac_nativeview_for(qwidget);
    [view setFrameSize:NSMakeSize(newSize.width(), newSize.height())];
    if (!qwidget->isVisible()) {
        qwidget->setAttribute(Qt::WA_PendingResizeEvent, true);
    } else {
        QResizeEvent qre(newSize, oldSize);
        if (qwidget->testAttribute(Qt::WA_PendingResizeEvent)) {
            qwidget->setAttribute(Qt::WA_PendingResizeEvent, false);
            QApplication::sendEvent(qwidget, &qre);
        } else {
            qt_sendSpontaneousEvent(qwidget, &qre);
        }
    }
}

- (void)dumpMaximizedStateforWidget:(QWidget*)qwidget window:(NSWindow *)window;
{
    if (!window)
        return; // Nothing to do.
    QWidgetData *widgetData = qt_qwidget_data(qwidget);
    if ((widgetData->window_state & Qt::WindowMaximized) && ![window isZoomed]) {
        widgetData->window_state &= ~Qt::WindowMaximized;
        QWindowStateChangeEvent e(Qt::WindowState(widgetData->window_state | Qt::WindowMaximized));
        qt_sendSpontaneousEvent(qwidget, &e);
    }
}

- (NSSize)closestAcceptableSizeForWidget:(QWidget *)qwidget window:(NSWindow *)window
                             withNewSize:(NSSize)proposedSize
{
    [self dumpMaximizedStateforWidget:qwidget window:window];
    QSize newSize = QLayout::closestAcceptableSize(qwidget, 
                                                   QSize(proposedSize.width, proposedSize.height));
    return [NSWindow frameRectForContentRect:
            NSMakeRect(0., 0., newSize.width(), newSize.height())
                                   styleMask:[window styleMask]].size;
}

- (NSSize)windowWillResize:(NSWindow *)windowToResize toSize:(NSSize)proposedFrameSize
{
    QWidget *qwidget = m_windowHash->value(windowToResize);
    return [self closestAcceptableSizeForWidget:qwidget window:windowToResize
                                    withNewSize:[NSWindow contentRectForFrameRect:
                                                 NSMakeRect(0, 0, 
                                                            proposedFrameSize.width,
                                                            proposedFrameSize.height) 
                                                    styleMask:[windowToResize styleMask]].size];
}

- (NSSize)drawerWillResizeContents:(NSDrawer *)sender toSize:(NSSize)contentSize
{
    QWidget *qwidget = m_drawerHash->value(sender);
    return [self closestAcceptableSizeForWidget:qwidget window:nil withNewSize:contentSize];
}

-(void)windowDidMiniaturize:(NSNotification*)notification
{
    QWidget *qwidget = m_windowHash->value([notification object]);
    if (!qwidget->isMinimized()) {
        QWidgetData *widgetData = qt_qwidget_data(qwidget);
        widgetData->window_state = widgetData->window_state | Qt::WindowMinimized;
        QWindowStateChangeEvent e(Qt::WindowStates(widgetData->window_state & ~Qt::WindowMinimized));
        qt_sendSpontaneousEvent(qwidget, &e);
    }
    // Send hide to match Qt on X11 and Windows
    QEvent e(QEvent::Hide);
    qt_sendSpontaneousEvent(qwidget, &e);
}

- (void)windowDidResize:(NSNotification *)notification
{
    NSWindow *window = [notification object];
    QWidget *qwidget = m_windowHash->value(window);
    QWidgetData *widgetData = qt_qwidget_data(qwidget);
    if (!(qwidget->windowState() & (Qt::WindowMaximized | Qt::WindowFullScreen)) && [window isZoomed]) {
        widgetData->window_state = widgetData->window_state | Qt::WindowMaximized;
        QWindowStateChangeEvent e(Qt::WindowStates(widgetData->window_state
                                                   & ~Qt::WindowMaximized));
        qt_sendSpontaneousEvent(qwidget, &e);
    } else {
        widgetData->window_state = widgetData->window_state & ~Qt::WindowMaximized;
        QWindowStateChangeEvent e(Qt::WindowStates(widgetData->window_state
                                                   | Qt::WindowMaximized));
        qt_sendSpontaneousEvent(qwidget, &e);
    }
    NSRect rect = [[window contentView] frame];
    const QSize newSize(rect.size.width, rect.size.height);
    const QSize &oldSize = widgetData->crect.size();
    if (newSize != oldSize) {
        QWidgetPrivate::qt_mac_update_sizer(qwidget);
        [self syncSizeForWidget:qwidget toSize:newSize fromSize:oldSize];
    }
}

- (void)windowDidMove:(NSNotification *)notification
{
    // The code underneath needs to translate the window location
    // from bottom left (which is the origin used by Cocoa) to
    // upper left (which is the origin used by Qt):
    NSWindow *window = [notification object];
    NSRect newRect = [window frame];
    QWidget *qwidget = m_windowHash->value(window);
    QPoint qtPoint = flipPoint(NSMakePoint(newRect.origin.x,
                                           newRect.origin.y + newRect.size.height)).toPoint();
    const QRect &oldRect = qwidget->frameGeometry();

    if (qtPoint.x() != oldRect.x() || qtPoint.y() != oldRect.y()) {
        QWidgetData *widgetData = qt_qwidget_data(qwidget);
        QRect oldCRect = widgetData->crect;
        QWidgetPrivate *widgetPrivate = qt_widget_private(qwidget);
        const QRect &fStrut = widgetPrivate->frameStrut();
        widgetData->crect.moveTo(qtPoint.x() + fStrut.left(), qtPoint.y() + fStrut.top());
        if (!qwidget->isVisible()) {
            qwidget->setAttribute(Qt::WA_PendingMoveEvent, true);
        } else {
            QMoveEvent qme(qtPoint, oldRect.topLeft());
            qt_sendSpontaneousEvent(qwidget, &qme);
        }
    }
}

-(BOOL)windowShouldClose:(id)windowThatWantsToClose
{
    QWidget *qwidget = m_windowHash->value(windowThatWantsToClose);
    QScopedLoopLevelCounter counter(qt_widget_private(qwidget)->threadData);
    return qt_widget_private(qwidget)->close_helper(QWidgetPrivate::CloseWithSpontaneousEvent);
}

-(void)windowDidDeminiaturize:(NSNotification *)notification
{
    QWidget *qwidget = m_windowHash->value([notification object]);
    QWidgetData *widgetData = qt_qwidget_data(qwidget);
    Qt::WindowStates currState = Qt::WindowStates(widgetData->window_state);
    Qt::WindowStates newState = currState;
    if (currState & Qt::WindowMinimized)
        newState &= ~Qt::WindowMinimized;
    if (!(currState & Qt::WindowActive))
        newState |= Qt::WindowActive;
    if (newState != currState) {
        widgetData->window_state = newState;
        QWindowStateChangeEvent e(currState);
        qt_sendSpontaneousEvent(qwidget, &e);
    }
    QShowEvent qse;
    qt_sendSpontaneousEvent(qwidget, &qse);
}

-(void)windowDidBecomeMain:(NSNotification*)notification
{
    QWidget *qwidget = m_windowHash->value([notification object]);
    Q_ASSERT(qwidget);
    onApplicationWindowChangedActivation(qwidget, true);
}

-(void)windowDidResignMain:(NSNotification*)notification
{
    QWidget *qwidget = m_windowHash->value([notification object]);
    Q_ASSERT(qwidget);
    onApplicationWindowChangedActivation(qwidget, false);
}

// These are the same as main, but they are probably better to keep separate since there is a
// tiny difference between main and key windows.
-(void)windowDidBecomeKey:(NSNotification*)notification
{
    QWidget *qwidget = m_windowHash->value([notification object]);
    Q_ASSERT(qwidget);
    onApplicationWindowChangedActivation(qwidget, true);
}

-(void)windowDidResignKey:(NSNotification*)notification
{
    QWidget *qwidget = m_windowHash->value([notification object]);
    Q_ASSERT(qwidget);
    onApplicationWindowChangedActivation(qwidget, false);
}

-(QWidget *)qt_qwidgetForWindow:(NSWindow *)window
{
    return m_windowHash->value(window);
}

- (BOOL)windowShouldZoom:(NSWindow *)window toFrame:(NSRect)newFrame
{
    Q_UNUSED(newFrame);
    // saving the current window geometry before the window is maximized
    QWidget *qwidget = m_windowHash->value(window);
    QWidgetPrivate *widgetPrivate = qt_widget_private(qwidget);
    if (qwidget->isWindow()) {
        if(qwidget->windowState() & Qt::WindowMaximized) {
            // Restoring
            widgetPrivate->topData()->wasMaximized = false;
        } else {
            // Maximizing
            widgetPrivate->topData()->normalGeometry = qwidget->geometry();
            // If the window was maximized we need to update the coordinates since now it will start at 0,0.
            // We do this in a special field that is only used when not restoring but manually resizing the window.
            // Since the coordinates are fixed we just set a boolean flag.
            widgetPrivate->topData()->wasMaximized = true;
        }
    }
    return YES;
}

- (NSRect)windowWillUseStandardFrame:(NSWindow *)window defaultFrame:(NSRect)defaultFrame
{
    NSRect frameToReturn = defaultFrame;
    QWidget *qwidget = m_windowHash->value(window);
    QSizeF size = qwidget->maximumSize();
    NSRect windowFrameRect = [window frame];
    NSRect viewFrameRect = [[window contentView] frame];
    // consider additional size required for titlebar & frame
    frameToReturn.size.width = qMin<CGFloat>(frameToReturn.size.width,
            size.width()+(windowFrameRect.size.width - viewFrameRect.size.width));
    frameToReturn.size.height = qMin<CGFloat>(frameToReturn.size.height,
            size.height()+(windowFrameRect.size.height - viewFrameRect.size.height));
    return frameToReturn;
}

- (void)becomeDelegteForWindow:(NSWindow *)window  widget:(QWidget *)widget
{
    m_windowHash->insert(window, widget);
    [window setDelegate:self];
}

- (void)resignDelegateForWindow:(NSWindow *)window
{
    [window setDelegate:nil];
    m_windowHash->remove(window);
}

- (void)becomeDelegateForDrawer:(NSDrawer *)drawer widget:(QWidget *)widget
{
    m_drawerHash->insert(drawer, widget);
    [drawer setDelegate:self];
    NSWindow *window = [[drawer contentView] window];
    [self becomeDelegteForWindow:window widget:widget];
}

- (void)resignDelegateForDrawer:(NSDrawer *)drawer
{
    QWidget *widget = m_drawerHash->value(drawer);
    [drawer setDelegate:nil];
    if (widget)
        [self resignDelegateForWindow:[[drawer contentView] window]];
    m_drawerHash->remove(drawer);
}

- (BOOL)window:(NSWindow *)window shouldPopUpDocumentPathMenu:(NSMenu *)menu
{
    Q_UNUSED(menu);
    QWidget *qwidget = m_windowHash->value(window);
    if (qwidget && !qwidget->windowFilePath().isEmpty()) {
        return YES;
    }
    return NO;
}

- (BOOL)window:(NSWindow *)window shouldDragDocumentWithEvent:(NSEvent *)event
                                                          from:(NSPoint)dragImageLocation
                                                withPasteboard:(NSPasteboard *)pasteboard
{
    Q_UNUSED(event);
    Q_UNUSED(dragImageLocation);
    Q_UNUSED(pasteboard);
    QWidget *qwidget = m_windowHash->value(window);
    if (qwidget && !qwidget->windowFilePath().isEmpty()) {
        return YES;
    }
    return NO;
}

- (void)syncContentViewFrame: (NSNotification *)notification
{
    NSView *cView = [notification object];
    if (cView) {
        NSWindow *window = [cView window];
        QWidget *qwidget = m_windowHash->value(window);
        if (qwidget) {
            QWidgetData *widgetData = qt_qwidget_data(qwidget);
            NSRect rect = [cView frame];
            const QSize newSize(rect.size.width, rect.size.height);
            const QSize &oldSize = widgetData->crect.size();
            if (newSize != oldSize) {
                [self syncSizeForWidget:qwidget toSize:newSize fromSize:oldSize];
            }
        }

    }
}

@end
#endif// QT_MAC_USE_COCOA