|
1
by Michał Sawicz
Inital unity8 commit. |
1 |
/*
|
2 |
* Copyright (C) 2013 Canonical, Ltd.
|
|
3 |
*
|
|
4 |
* This program is free software; you can redistribute it and/or modify
|
|
5 |
* it under the terms of the GNU General Public License as published by
|
|
6 |
* the Free Software Foundation; version 3.
|
|
7 |
*
|
|
8 |
* This program is distributed in the hope that it will be useful,
|
|
9 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
10 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
11 |
* GNU General Public License for more details.
|
|
12 |
*
|
|
13 |
* You should have received a copy of the GNU General Public License
|
|
14 |
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
15 |
*
|
|
16 |
* Authored by: Daniel d'Andrada <daniel.dandrada@canonical.com>
|
|
17 |
*/
|
|
18 |
||
19 |
#include "MouseTouchAdaptor.h" |
|
20 |
||
21 |
#include <qpa/qwindowsysteminterface.h> |
|
22 |
||
23 |
#include <QtGui/QMouseEvent> |
|
24 |
#include <QtTest/QTest> |
|
25 |
||
26 |
using QTest::QTouchEventSequence; |
|
27 |
||
28 |
namespace { |
|
29 |
Qt::MouseButton translateMouseButton(xcb_button_t detail) |
|
30 |
{
|
|
31 |
switch (detail) { |
|
32 |
case 1: return Qt::LeftButton; |
|
33 |
case 2: return Qt::MidButton; |
|
34 |
case 3: return Qt::RightButton; |
|
35 |
// Button values 4-7 are Wheel events
|
|
36 |
default: return Qt::NoButton; |
|
37 |
}
|
|
38 |
}
|
|
39 |
} // end of anonymous namespace |
|
40 |
||
41 |
MouseTouchAdaptor::MouseTouchAdaptor() |
|
42 |
: m_targetWindow(0) |
|
43 |
, m_leftButtonIsPressed(false) |
|
44 |
{
|
|
45 |
m_touchDevice = new QTouchDevice; |
|
46 |
m_touchDevice->setType(QTouchDevice::TouchScreen); |
|
47 |
QWindowSystemInterface::registerTouchDevice(m_touchDevice); |
|
48 |
}
|
|
49 |
||
50 |
void MouseTouchAdaptor::setTargetWindow(QWindow *window) |
|
51 |
{
|
|
52 |
m_targetWindow = window; |
|
53 |
}
|
|
54 |
||
55 |
bool MouseTouchAdaptor::nativeEventFilter(const QByteArray & eventType, |
|
56 |
void * message, long * /*result*/) |
|
57 |
{
|
|
58 |
Q_ASSERT(m_targetWindow); |
|
59 |
||
60 |
if (eventType != "xcb_generic_event_t") { |
|
61 |
// wrong backend.
|
|
62 |
qWarning("MouseTouchAdaptor: XCB backend not in use. Adaptor inoperative!"); |
|
63 |
return false; |
|
64 |
}
|
|
65 |
||
66 |
xcb_generic_event_t *xcbEvent = static_cast<xcb_generic_event_t *>(message); |
|
67 |
||
68 |
switch (xcbEvent->response_type & ~0x80) { |
|
69 |
case XCB_BUTTON_PRESS: |
|
70 |
return handleButtonPress(reinterpret_cast<xcb_button_press_event_t *>(xcbEvent)); |
|
71 |
break; |
|
72 |
case XCB_BUTTON_RELEASE: |
|
73 |
return handleButtonRelease(reinterpret_cast<xcb_button_release_event_t *>(xcbEvent)); |
|
74 |
break; |
|
75 |
case XCB_MOTION_NOTIFY: |
|
76 |
return handleMotionNotify(reinterpret_cast<xcb_motion_notify_event_t *>(xcbEvent)); |
|
77 |
break; |
|
78 |
default: |
|
79 |
return false; |
|
80 |
break; |
|
81 |
};
|
|
82 |
}
|
|
83 |
||
84 |
bool MouseTouchAdaptor::handleButtonPress(xcb_button_press_event_t *pressEvent) |
|
85 |
{
|
|
86 |
Qt::MouseButton button = translateMouseButton(pressEvent->detail); |
|
87 |
||
88 |
// Just eat the event if it wasn't a left mouse press
|
|
89 |
if (button != Qt::LeftButton) |
|
90 |
return true; |
|
91 |
||
92 |
QPoint windowPos(pressEvent->event_x, pressEvent->event_y); |
|
93 |
||
94 |
QTouchEventSequence touchEvent = QTest::touchEvent(m_targetWindow, m_touchDevice, |
|
95 |
false /* autoCommit */); |
|
96 |
touchEvent.press(0 /* touchId */, windowPos); |
|
97 |
touchEvent.commit(false /* processEvents */); |
|
98 |
||
99 |
m_leftButtonIsPressed = true; |
|
100 |
return true; |
|
101 |
}
|
|
102 |
||
103 |
bool MouseTouchAdaptor::handleButtonRelease(xcb_button_release_event_t *releaseEvent) |
|
104 |
{
|
|
105 |
Qt::MouseButton button = translateMouseButton(releaseEvent->detail); |
|
106 |
||
107 |
// Just eat the event if it wasn't a left mouse release
|
|
108 |
if (button != Qt::LeftButton) |
|
109 |
return true; |
|
110 |
||
111 |
QPoint windowPos(releaseEvent->event_x, releaseEvent->event_y); |
|
112 |
||
113 |
QTouchEventSequence touchEvent = QTest::touchEvent(m_targetWindow, m_touchDevice, |
|
114 |
false /* autoCommit */); |
|
115 |
touchEvent.release(0 /* touchId */, windowPos); |
|
116 |
touchEvent.commit(false /* processEvents */); |
|
117 |
||
118 |
m_leftButtonIsPressed = false; |
|
119 |
return true; |
|
120 |
}
|
|
121 |
||
122 |
bool MouseTouchAdaptor::handleMotionNotify(xcb_motion_notify_event_t *event) |
|
123 |
{
|
|
124 |
if (!m_leftButtonIsPressed) { |
|
125 |
return true; |
|
126 |
}
|
|
127 |
||
128 |
QPoint windowPos(event->event_x, event->event_y); |
|
129 |
||
130 |
QTouchEventSequence touchEvent = QTest::touchEvent(m_targetWindow, m_touchDevice, |
|
131 |
false /* autoCommit */); |
|
132 |
touchEvent.move(0 /* touchId */, windowPos); |
|
133 |
touchEvent.commit(false /* processEvents */); |
|
134 |
||
135 |
return true; |
|
136 |
}
|