source: trunk/src/gui/widgets/qcocoamenu_mac.mm@ 500

Last change on this file since 500 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 6.9 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtGui module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
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15** GNU Lesser General Public License Usage
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19** packaging of this file. Please review the following information to
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41** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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43****************************************************************************/
44
45#include "qmacdefines_mac.h"
46#include "qapplication.h"
47#ifdef QT_MAC_USE_COCOA
48#import <private/qcocoamenu_mac_p.h>
49#import <private/qcocoamenuloader_mac_p.h>
50#include <private/qt_cocoa_helpers_mac_p.h>
51#include <private/qapplication_p.h>
52
53#include <QtGui/QMenu>
54
55QT_FORWARD_DECLARE_CLASS(QAction)
56QT_FORWARD_DECLARE_CLASS(QWidget)
57QT_FORWARD_DECLARE_CLASS(QApplication)
58QT_FORWARD_DECLARE_CLASS(QCoreApplication)
59QT_FORWARD_DECLARE_CLASS(QApplicationPrivate)
60QT_FORWARD_DECLARE_CLASS(QKeyEvent)
61QT_FORWARD_DECLARE_CLASS(QEvent)
62
63QT_BEGIN_NAMESPACE
64extern bool qt_sendSpontaneousEvent(QObject*, QEvent*); //qapplication.cpp
65QT_END_NAMESPACE
66
67QT_USE_NAMESPACE
68
69@implementation QT_MANGLE_NAMESPACE(QCocoaMenu)
70
71- (id)initWithQMenu:(QMenu*)menu
72{
73 self = [super init];
74 if (self) {
75 qmenu = menu;
76 [self setAutoenablesItems:NO];
77 [self setDelegate:self];
78 }
79 return self;
80}
81
82- (void)menu:(NSMenu*)menu willHighlightItem:(NSMenuItem*)item;
83{
84 Q_UNUSED(menu);
85
86 if (!item) {
87 // ### According to the docs everything will be highlighted. Not sure what we should do in
88 // Qt, so just return.
89 return;
90 }
91
92 if (QAction *action = reinterpret_cast<QAction *>([item tag]))
93 action->activate(QAction::Hover);
94}
95
96- (void)menuWillOpen:(NSMenu*)menu;
97{
98 while (QWidget *popup
99 = QApplication::activePopupWidget())
100 popup->close();
101 qt_mac_emit_menuSignals(((QT_MANGLE_NAMESPACE(QCocoaMenu) *)menu)->qmenu, true);
102}
103
104- (void)menuWillClose:(NSMenu*)menu;
105{
106 qt_mac_emit_menuSignals(((QT_MANGLE_NAMESPACE(QCocoaMenu) *)menu)->qmenu, false);
107}
108
109- (BOOL)hasShortcut:(NSMenu *)menu forKey:(NSString *)key forModifiers:(NSUInteger)modifier
110 whichItem:(NSMenuItem**)outItem
111{
112 for (NSMenuItem *item in [menu itemArray]) {
113 if (![item isEnabled] || [item isHidden] || [item isSeparatorItem])
114 continue;
115 if ([item hasSubmenu]) {
116 if ([self hasShortcut:[item submenu]
117 forKey:key
118 forModifiers:modifier whichItem:outItem]) {
119 if (outItem)
120 *outItem = item;
121 return YES;
122 }
123 }
124 NSString *menuKey = [item keyEquivalent];
125 if (menuKey && NSOrderedSame == [menuKey compare:key]
126 && (modifier == [item keyEquivalentModifierMask])) {
127 if (outItem)
128 *outItem = item;
129 return YES;
130 }
131 }
132 if (outItem)
133 *outItem = 0;
134 return NO;
135}
136
137- (BOOL)menuHasKeyEquivalent:(NSMenu *)menu forEvent:(NSEvent *)event target:(id *)target action:(SEL *)action
138{
139 // Check if the menu actually has a keysequence defined for this key event.
140 // If it does, then we will first send the key sequence to the QWidget that has focus
141 // since (in Qt's eyes) it needs to a chance at the key event first. If the widget
142 // accepts the key event, we then return YES, but set the target and action to be nil,
143 // which means that the action should not be triggered, and instead dispatch the event ourselves.
144 // In every other case we return NO, which means that Cocoa can do as it pleases
145 // (i.e., fire the menu action).
146 NSMenuItem *whichItem;
147 if ([self hasShortcut:menu
148 forKey:[event characters]
149 forModifiers:([event modifierFlags] & NSDeviceIndependentModifierFlagsMask)
150 whichItem:&whichItem]) {
151 QWidget *widget = 0;
152 QAction *qaction = 0;
153 if (whichItem && [whichItem tag]) {
154 qaction = reinterpret_cast<QAction *>([whichItem tag]);
155 }
156 if (qApp->activePopupWidget())
157 widget = (qApp->activePopupWidget()->focusWidget() ?
158 qApp->activePopupWidget()->focusWidget() : qApp->activePopupWidget());
159 else if (QApplicationPrivate::focus_widget)
160 widget = QApplicationPrivate::focus_widget;
161 if (qaction && widget) {
162 int key = qaction->shortcut();
163 QKeyEvent accel_ev(QEvent::ShortcutOverride, (key & (~Qt::KeyboardModifierMask)),
164 Qt::KeyboardModifiers(key & Qt::KeyboardModifierMask));
165 accel_ev.ignore();
166 qt_sendSpontaneousEvent(widget, &accel_ev);
167 if (accel_ev.isAccepted()) {
168 if (qt_dispatchKeyEvent(event, widget)) {
169 *target = nil;
170 *action = nil;
171 return YES;
172 }
173 }
174 }
175 }
176 return NO;
177}
178
179@end
180
181QT_BEGIN_NAMESPACE
182extern int qt_mac_menus_open_count; // qmenu_mac.mm
183
184void qt_mac_emit_menuSignals(QMenu *menu, bool show)
185{
186 if (!menu)
187 return;
188 int delta;
189 if (show) {
190 emit menu->aboutToShow();
191 delta = 1;
192 } else {
193 emit menu->aboutToHide();
194 delta = -1;
195 }
196 qt_mac_menus_open_count += delta;
197}
198QT_END_NAMESPACE
199
200#endif
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