Updating trunk VERSION from 2139.0 to 2140.0
[chromium-blink-merge.git] / ash / wm / maximize_mode / scoped_disable_internal_mouse_and_keyboard_x11.cc
blobc78c406d729e48234cb4a4d34e62fece3904e06c
1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.h"
7 #include <set>
8 #include <X11/extensions/XInput2.h>
9 #include <X11/Xlib.h>
11 #include "ash/display/display_controller.h"
12 #include "ash/screen_util.h"
13 #include "ash/shell.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "base/strings/string_util.h"
16 #include "ui/aura/client/screen_position_client.h"
17 #include "ui/aura/env.h"
18 #include "ui/aura/window.h"
19 #include "ui/aura/window_event_dispatcher.h"
20 #include "ui/aura/window_tree_host.h"
21 #include "ui/events/event.h"
22 #include "ui/events/event_utils.h"
23 #include "ui/events/keycodes/keyboard_codes_posix.h"
24 #include "ui/events/platform/platform_event_source.h"
25 #include "ui/events/x/device_data_manager_x11.h"
26 #include "ui/events/x/device_list_cache_x.h"
27 #include "ui/gfx/x/x11_types.h"
29 namespace ash {
31 namespace {
33 // The name of the xinput device corresponding to the internal touchpad.
34 const char kInternalTouchpadName[] = "Elan Touchpad";
36 // The name of the xinput device corresponding to the internal keyboard.
37 const char kInternalKeyboardName[] = "AT Translated Set 2 keyboard";
39 // Repeated key events have their source set to the core keyboard device.
40 // These must be disabled also until http://crbug.com/402898 is resolved.
41 const char kCoreKeyboardName[] = "Virtual core keyboard";
43 // Device id used to indicate that a device has not been detected.
44 const int kDeviceIdNone = -1;
46 gfx::Point GetMouseLocationInScreen() {
47 return aura::Env::GetInstance()->last_mouse_location();
50 void SetMouseLocationInScreen(const gfx::Point& screen_location) {
51 gfx::Display display = ash::ScreenUtil::FindDisplayContainingPoint(
52 screen_location);
53 if (!display.is_valid())
54 return;
55 aura::Window* root_window = Shell::GetInstance()->display_controller()->
56 GetRootWindowForDisplayId(display.id());
57 gfx::Point host_location(screen_location);
58 aura::client::ScreenPositionClient* client =
59 aura::client::GetScreenPositionClient(root_window);
60 if (client)
61 client->ConvertPointFromScreen(root_window, &host_location);
62 root_window->GetHost()->MoveCursorTo(host_location);
65 } // namespace
67 ScopedDisableInternalMouseAndKeyboardX11::
68 ScopedDisableInternalMouseAndKeyboardX11()
69 : touchpad_device_id_(kDeviceIdNone),
70 keyboard_device_id_(kDeviceIdNone),
71 core_keyboard_device_id_(kDeviceIdNone),
72 last_mouse_location_(GetMouseLocationInScreen()) {
74 ui::DeviceDataManagerX11* device_data_manager =
75 static_cast<ui::DeviceDataManagerX11*>(
76 ui::DeviceDataManager::GetInstance());
77 if (device_data_manager->IsXInput2Available()) {
78 XIDeviceList xi_dev_list = ui::DeviceListCacheX::GetInstance()->
79 GetXI2DeviceList(gfx::GetXDisplay());
80 for (int i = 0; i < xi_dev_list.count; ++i) {
81 std::string device_name(xi_dev_list[i].name);
82 base::TrimWhitespaceASCII(device_name, base::TRIM_TRAILING, &device_name);
83 if (device_name == kInternalTouchpadName) {
84 touchpad_device_id_ = xi_dev_list[i].deviceid;
85 device_data_manager->DisableDevice(touchpad_device_id_);
86 } else if (device_name == kInternalKeyboardName) {
87 keyboard_device_id_ = xi_dev_list[i].deviceid;
88 device_data_manager->DisableDevice(keyboard_device_id_);
89 } else if (device_name == kCoreKeyboardName) {
90 core_keyboard_device_id_ = xi_dev_list[i].deviceid;
91 device_data_manager->DisableDevice(core_keyboard_device_id_);
95 // Allow the accessible keys present on the side of some devices to continue
96 // working.
97 scoped_ptr<std::set<ui::KeyboardCode> > excepted_keys(
98 new std::set<ui::KeyboardCode>);
99 excepted_keys->insert(ui::VKEY_VOLUME_DOWN);
100 excepted_keys->insert(ui::VKEY_VOLUME_UP);
101 excepted_keys->insert(ui::VKEY_POWER);
102 device_data_manager->SetDisabledKeyboardAllowedKeys(excepted_keys.Pass());
103 ui::PlatformEventSource::GetInstance()->AddPlatformEventObserver(this);
106 ScopedDisableInternalMouseAndKeyboardX11::
107 ~ScopedDisableInternalMouseAndKeyboardX11() {
108 ui::DeviceDataManagerX11* device_data_manager =
109 static_cast<ui::DeviceDataManagerX11*>(
110 ui::DeviceDataManager::GetInstance());
111 if (touchpad_device_id_ != kDeviceIdNone)
112 device_data_manager->EnableDevice(touchpad_device_id_);
113 if (keyboard_device_id_ != kDeviceIdNone)
114 device_data_manager->EnableDevice(keyboard_device_id_);
115 if (core_keyboard_device_id_ != kDeviceIdNone)
116 device_data_manager->EnableDevice(core_keyboard_device_id_);
117 device_data_manager->SetDisabledKeyboardAllowedKeys(
118 scoped_ptr<std::set<ui::KeyboardCode> >());
119 ui::PlatformEventSource::GetInstance()->RemovePlatformEventObserver(this);
122 void ScopedDisableInternalMouseAndKeyboardX11::WillProcessEvent(
123 const ui::PlatformEvent& event) {
126 void ScopedDisableInternalMouseAndKeyboardX11::DidProcessEvent(
127 const ui::PlatformEvent& event) {
128 if (event->type != GenericEvent)
129 return;
130 XIDeviceEvent* xievent =
131 static_cast<XIDeviceEvent*>(event->xcookie.data);
132 ui::DeviceDataManagerX11* device_data_manager =
133 static_cast<ui::DeviceDataManagerX11*>(
134 ui::DeviceDataManager::GetInstance());
135 if (xievent->evtype != XI_Motion ||
136 device_data_manager->IsFlingEvent(event) ||
137 device_data_manager->IsScrollEvent(event) ||
138 device_data_manager->IsCMTMetricsEvent(event)) {
139 return;
141 if (xievent->sourceid == touchpad_device_id_) {
142 // The cursor will have already moved even though the move event will be
143 // blocked. Move the mouse cursor back to its last known location resulting
144 // from an external mouse to prevent the internal touchpad from moving it.
145 SetMouseLocationInScreen(last_mouse_location_);
146 } else {
147 // Track the last location seen from an external mouse event.
148 last_mouse_location_ = GetMouseLocationInScreen();
152 } // namespace ash