summaryrefslogtreecommitdiffstats
path: root/src/plugins/platforms/cocoa/qnswindowdelegate.mm
blob: 3ad9085deaba67c35ed5d3c225cb736775a61415 (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
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qnswindowdelegate.h"
#include "qcocoahelpers.h"
#include "qcocoawindow.h"
#include "qcocoascreen.h"

#include <QDebug>
#include <QtCore/private/qcore_mac_p.h>
#include <qpa/qplatformscreen.h>
#include <qpa/qwindowsysteminterface.h>

static inline bool isWhiteSpace(const QString &s)
{
    for (int i = 0; i < s.size(); ++i)
        if (!s.at(i).isSpace())
            return false;
    return true;
}

static QCocoaWindow *toPlatformWindow(NSWindow *window)
{
    if ([window conformsToProtocol:@protocol(QNSWindowProtocol)])
        return static_cast<QCocoaNSWindow *>(window).platformWindow;
    return nullptr;
}

@implementation QNSWindowDelegate

- (BOOL)windowShouldClose:(NSWindow *)window
{
    if (QCocoaWindow *platformWindow = toPlatformWindow(window))
        return platformWindow->windowShouldClose();

    return YES;
}
/*!
    Overridden to ensure that the zoomed state always results in a maximized
    window, which would otherwise not be the case for borderless windows.

    We also keep the window on the same screen as before; something AppKit
    sometimes fails to do using its built in logic.
*/
- (NSRect)windowWillUseStandardFrame:(NSWindow *)window defaultFrame:(NSRect)proposedFrame
{
    Q_UNUSED(proposedFrame);

    QCocoaWindow *platformWindow = toPlatformWindow(window);
    Q_ASSERT(platformWindow);
    const QWindow *w = platformWindow->window();

    // maximumSize() refers to the client size, but AppKit expects the full frame size
    QSizeF maximumSize = w->maximumSize() + QSize(0, w->frameMargins().top());

    // The window should never be larger than the current screen geometry
    const QRectF screenGeometry = platformWindow->screen()->geometry();
    maximumSize = maximumSize.boundedTo(screenGeometry.size());

    // Use the current frame position for the initial maximized frame,
    // so that the window stays put and just expand, in case its maximum
    // size is within the screen bounds.
    QRectF maximizedFrame = QRectF(w->framePosition(), maximumSize);

    // But constrain the frame to the screen bounds in case the frame
    // extends beyond the screen bounds as a result of starting out
    // with the current frame position.
    maximizedFrame.translate(QPoint(
        qMax(screenGeometry.left() - maximizedFrame.left(), 0.0) +
        qMin(screenGeometry.right() - maximizedFrame.right(), 0.0),
        qMax(screenGeometry.top() - maximizedFrame.top(), 0.0) +
        qMin(screenGeometry.bottom() - maximizedFrame.bottom(), 0.0)));

    return QCocoaScreen::mapToNative(maximizedFrame);
}

- (BOOL)window:(NSWindow *)window shouldPopUpDocumentPathMenu:(NSMenu *)menu
{
    Q_UNUSED(menu);

    QCocoaWindow *platformWindow = toPlatformWindow(window);
    Q_ASSERT(platformWindow);

    // Only pop up document path if the filename is non-empty. We allow whitespace, to
    // allow faking a window icon by setting the file path to a single space character.
    return !isWhiteSpace(platformWindow->window()->filePath());
}

- (BOOL)window:(NSWindow *)window shouldDragDocumentWithEvent:(NSEvent *)event from:(NSPoint)dragImageLocation withPasteboard:(NSPasteboard *)pasteboard
{
    Q_UNUSED(event);
    Q_UNUSED(dragImageLocation);
    Q_UNUSED(pasteboard);

    QCocoaWindow *platformWindow = toPlatformWindow(window);
    Q_ASSERT(platformWindow);

    // Only allow drag if the filename is non-empty. We allow whitespace, to
    // allow faking a window icon by setting the file path to a single space.
    return !isWhiteSpace(platformWindow->window()->filePath());
}
@end