summaryrefslogtreecommitdiffstats
path: root/src/gui/kernel/qcocoasharedwindowmethods_mac_p.h
blob: e94d24706e3773257601c1d6fb3589011a1fbc12 (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
/****************************************************************************
**
** Copyright (C) 2010 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

/****************************************************************************
 NB: This is not a header file, dispite the file name suffix. This file is
 included directly into the source code of qcocoawindow_mac.mm and
 qcocoapanel_mac.mm to avoid manually doing copy and paste of the exact
 same code needed at both places. This solution makes it more difficult
 to e.g fix a bug in qcocoawindow_mac.mm, but forget to do the same in
 qcocoapanel_mac.mm.
 The reason we need to do copy and paste in the first place, rather than
 resolve to method overriding, is that QCocoaPanel needs to inherit from
 NSPanel, while QCocoaWindow needs to inherit NSWindow rather than NSPanel).
****************************************************************************/

// WARNING: Don't include any header files from within this file. Put them
// directly into qcocoawindow_mac_p.h and qcocoapanel_mac_p.h

QT_BEGIN_NAMESPACE
extern Qt::MouseButton cocoaButton2QtButton(NSInteger buttonNum); // qcocoaview.mm
extern QPointer<QWidget> qt_button_down; //qapplication_mac.cpp
extern const QStringList& qEnabledDraggedTypes(); // qmime_mac.cpp

Q_GLOBAL_STATIC(QPointer<QWidget>, currentDragTarget);

QT_END_NAMESPACE

- (id)initWithContentRect:(NSRect)contentRect
    styleMask:(NSUInteger)windowStyle
    backing:(NSBackingStoreType)bufferingType
    defer:(BOOL)deferCreation
{
    self = [super initWithContentRect:contentRect styleMask:windowStyle
        backing:bufferingType defer:deferCreation];
    if (self) {
        currentCustomDragTypes = 0;
    }
    return self;
}

- (void)dealloc
{
    delete currentCustomDragTypes;
    [super dealloc];
}

- (BOOL)canBecomeKeyWindow
{
    QWidget *widget = [self QT_MANGLE_NAMESPACE(qt_qwidget)];

    bool isToolTip = (widget->windowType() == Qt::ToolTip);
    bool isPopup = (widget->windowType() == Qt::Popup);
    return !(isPopup || isToolTip);
}

- (BOOL)canBecomeMainWindow
{
    QWidget *widget = [self QT_MANGLE_NAMESPACE(qt_qwidget)];

    bool isToolTip = (widget->windowType() == Qt::ToolTip);
    bool isPopup = (widget->windowType() == Qt::Popup);
    bool isTool = (widget->windowType() == Qt::Tool);
    return !(isPopup || isToolTip || isTool);
}

- (void)becomeMainWindow
{
    [super becomeMainWindow];
    // Cocoa sometimes tell a hidden window to become the
    // main window (and as such, show it). This can e.g
    // happend when the application gets activated. If
    // this is the case, we tell it to hide again:
    if (![self isVisible])
        [self orderOut:self];
}

- (void)toggleToolbarShown:(id)sender
{
    macSendToolbarChangeEvent([self QT_MANGLE_NAMESPACE(qt_qwidget)]);
    [super toggleToolbarShown:sender];
}

- (void)flagsChanged:(NSEvent *)theEvent
{
    qt_dispatchModifiersChanged(theEvent, [self QT_MANGLE_NAMESPACE(qt_qwidget)]);
    [super flagsChanged:theEvent];
}


- (void)tabletProximity:(NSEvent *)tabletEvent
{
    qt_dispatchTabletProximityEvent(tabletEvent);
}

- (void)qtDispatcherToQAction:(id)sender
{
    // If this window is modal, the menu bar will be modally shaddowed.
    // In that case, since the window will be in the first responder chain,
    // we can still catch the trigger here and forward it to the menu bar.
    // This is needed as a single modal dialog on Qt should be able to access
    // the application menu (e.g. quit).
    [[NSApp QT_MANGLE_NAMESPACE(qt_qcocoamenuLoader)] qtDispatcherToQAction:sender];
}

- (void)terminate:(id)sender
{
    // This function is called from the quit item in the menubar when this window
    // is in the first responder chain (see also qtDispatcherToQAction above)
    [NSApp terminate:sender];
}

- (void)sendEvent:(NSEvent *)event
{
    if ([event type] == NSApplicationDefined) {
        switch ([event subtype]) {
            case QtCocoaEventSubTypePostMessage:
                [NSApp qt_sendPostedMessage:event];
                return;
            default:
                break;
        }
        return;
    }

    QWidget *widget = [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] qt_qwidgetForWindow:self];
    // Cocoa can hold onto the window after we've disavowed its knowledge. So,
    // if we get sent an event afterwards just have it go through the super's
    // version and don't do any stuff with Qt.
    if (!widget) {
        [super sendEvent:event];
        return;
    }

    [self retain];
    QT_MANGLE_NAMESPACE(QCocoaView) *view = static_cast<QT_MANGLE_NAMESPACE(QCocoaView) *>(qt_mac_nativeview_for(widget));
    Qt::MouseButton mouseButton = cocoaButton2QtButton([event buttonNumber]);

    bool handled = false;
    // sometimes need to redirect mouse events to the popup.
    QWidget *popup = qAppInstance()->activePopupWidget();
    if (popup) {
        switch([event type])
        {
        case NSLeftMouseDown:
            if (!qt_button_down)
                qt_button_down = widget;
            handled = qt_mac_handleMouseEvent(view, event, QEvent::MouseButtonPress, mouseButton);
            // Don't call super here. This prevents us from getting the mouseUp event,
            // which we need to send even if the mouseDown event was not accepted.
            // (this is standard Qt behavior.)
            break;
        case NSRightMouseDown:
        case NSOtherMouseDown:
            if (!qt_button_down)
                qt_button_down = widget;
            handled = qt_mac_handleMouseEvent(view, event, QEvent::MouseButtonPress, mouseButton);
            break;
        case NSLeftMouseUp:
        case NSRightMouseUp:
        case NSOtherMouseUp:
            handled = qt_mac_handleMouseEvent(view, event, QEvent::MouseButtonRelease, mouseButton);
            qt_button_down = 0;
            break;
        case NSMouseMoved:
            handled = qt_mac_handleMouseEvent(view, event, QEvent::MouseMove, Qt::NoButton);
            break;
        case NSLeftMouseDragged:
        case NSRightMouseDragged:
        case NSOtherMouseDragged:
            [QT_MANGLE_NAMESPACE(QCocoaView) currentMouseEvent]->view = view;
            [QT_MANGLE_NAMESPACE(QCocoaView) currentMouseEvent]->theEvent = event;
            handled = qt_mac_handleMouseEvent(view, event, QEvent::MouseMove, mouseButton);
            break;
        default:
            [super sendEvent:event];
            break;
        }
    } else {
        [super sendEvent:event];
    }

    if (!handled)
        qt_mac_dispatchNCMouseMessage(self, event, [self QT_MANGLE_NAMESPACE(qt_qwidget)], leftButtonIsRightButton);

    [self release];
}

- (BOOL)makeFirstResponder:(NSResponder *)responder
{
    // For some reason Cocoa wants to flip the first responder
    // when Qt doesn't want to, sorry, but "No" :-)
    if (responder == nil && qApp->focusWidget())
        return NO;
    return [super makeFirstResponder:responder];
}

+ (Class)frameViewClassForStyleMask:(NSUInteger)styleMask
{
    if (styleMask & QtMacCustomizeWindow)
        return [QT_MANGLE_NAMESPACE(QCocoaWindowCustomThemeFrame) class];
    return [super frameViewClassForStyleMask:styleMask];
}

-(void)registerDragTypes
{
    // Calling registerForDraggedTypes below is slow, so only do
    // it once for each window, or when the custom types change.
    QMacCocoaAutoReleasePool pool;
    const QStringList& customTypes = qEnabledDraggedTypes();
    if (currentCustomDragTypes == 0 || *currentCustomDragTypes != customTypes) {
        if (currentCustomDragTypes == 0)
            currentCustomDragTypes = new QStringList();
        *currentCustomDragTypes = customTypes;
        const NSString* mimeTypeGeneric = @"com.trolltech.qt.MimeTypeName";
        NSMutableArray *supportedTypes = [NSMutableArray arrayWithObjects:NSColorPboardType,
                       NSFilenamesPboardType, NSStringPboardType,
                       NSFilenamesPboardType, NSPostScriptPboardType, NSTIFFPboardType,
                       NSRTFPboardType, NSTabularTextPboardType, NSFontPboardType,
                       NSRulerPboardType, NSFileContentsPboardType, NSColorPboardType,
                       NSRTFDPboardType, NSHTMLPboardType, NSPICTPboardType,
                       NSURLPboardType, NSPDFPboardType, NSVCardPboardType,
                       NSFilesPromisePboardType, NSInkTextPboardType,
                       NSMultipleTextSelectionPboardType, mimeTypeGeneric, nil];
        // Add custom types supported by the application.
        for (int i = 0; i < customTypes.size(); i++) {
           [supportedTypes addObject:reinterpret_cast<const NSString *>(QCFString::toCFStringRef(customTypes[i]))];
        }
        [self registerForDraggedTypes:supportedTypes];
    }
}

- (QWidget *)dragTargetHitTest:(id <NSDraggingInfo>)sender
{
    // Do a hittest to find the NSView under the
    // mouse, and return the corresponding QWidget:
    NSPoint windowPoint = [sender draggingLocation];
    NSView *candidateView = [[self contentView] hitTest:windowPoint];
    if (![candidateView isKindOfClass:[QT_MANGLE_NAMESPACE(QCocoaView) class]])
        return 0;
    return [static_cast<QT_MANGLE_NAMESPACE(QCocoaView) *>(candidateView) qt_qwidget];
}

- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
{
    // The user dragged something into the window. Send a draggingEntered message
    // to the QWidget under the mouse. As the drag moves over the window, and over
    // different widgets, we will handle enter and leave events from within
    // draggingUpdated below. The reason why we handle this ourselves rather than
    // subscribing for drag events directly in QCocoaView is that calling
    // registerForDraggedTypes on the views will severly degrade initialization time
    // for an application that uses a lot of drag subscribing widgets.

    QWidget *target = [self dragTargetHitTest:sender];
    if (!target)
        return [super draggingEntered:sender];
    if (target->testAttribute(Qt::WA_DropSiteRegistered) == false)
        return NSDragOperationNone;

    *currentDragTarget() = target;
    return [reinterpret_cast<NSView *>((*currentDragTarget())->winId()) draggingEntered:sender];
 }

- (NSDragOperation)draggingUpdated:(id < NSDraggingInfo >)sender
{
    QWidget *target = [self dragTargetHitTest:sender];
    if (!target)
        return [super draggingUpdated:sender];

    if (target == *currentDragTarget()) {
        // The drag continues to move over the widget that we have sendt
        // a draggingEntered message to. So just update the view:
        return [reinterpret_cast<NSView *>((*currentDragTarget())->winId()) draggingUpdated:sender];
    } else {
        // The widget under the mouse has changed.
        // So we need to fake enter/leave events:
        if (*currentDragTarget())
            [reinterpret_cast<NSView *>((*currentDragTarget())->winId()) draggingExited:sender];
        if (target->testAttribute(Qt::WA_DropSiteRegistered) == false) {
            *currentDragTarget() = 0;
            return NSDragOperationNone;
        }
        *currentDragTarget() = target;
        return [reinterpret_cast<NSView *>((*currentDragTarget())->winId()) draggingEntered:sender];
    }
}

- (void)draggingExited:(id < NSDraggingInfo >)sender
{
    QWidget *target = [self dragTargetHitTest:sender];
    if (!target)
        return [super draggingExited:sender];

    if (*currentDragTarget()) {
        [reinterpret_cast<NSView *>((*currentDragTarget())->winId()) draggingExited:sender];
        *currentDragTarget() = 0;
    }
}

- (BOOL)performDragOperation:(id < NSDraggingInfo >)sender
{
    QWidget *target = [self dragTargetHitTest:sender];
    if (!target)
        return [super performDragOperation:sender];

    BOOL dropResult = NO;
    if (*currentDragTarget()) {
        dropResult = [reinterpret_cast<NSView *>((*currentDragTarget())->winId()) performDragOperation:sender];
        *currentDragTarget() = 0;
    }
    return dropResult;
}

- (void)displayIfNeeded
{

    QWidget *qwidget = [[QT_MANGLE_NAMESPACE(QCocoaWindowDelegate) sharedDelegate] qt_qwidgetForWindow:self];
    if (qwidget == 0) {
        [super displayIfNeeded];
        return;
    }

    if (QApplicationPrivate::graphicsSystem() != 0) {
        if (QWidgetBackingStore *bs = qt_widget_private(qwidget)->maybeBackingStore())
            bs->sync(qwidget, qwidget->rect());
    }
    [super displayIfNeeded];
}