ui/events/test/events_test_utils_x11.cc

   1 // Copyright 2013 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.
   4
   5 #include "ui/events/test/events_test_utils_x11.h"
   6
   7 #include <X11/extensions/XI2.h>
   8 #include <X11/keysym.h>
   9 #include <X11/X.h>
  10 #include <X11/Xlib.h>
  11
  12 #include "base/logging.h"
  13 #include "ui/events/devices/x11/touch_factory_x11.h"
  14 #include "ui/events/event_constants.h"
  15 #include "ui/events/event_utils.h"
  16 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
  17
  18 namespace {
  19
  20 // Converts ui::EventType to state for X*Events.
  21 unsigned int XEventState(int flags) {
  22   return
  23       ((flags & ui::EF_SHIFT_DOWN) ? ShiftMask : 0) |
  24       ((flags & ui::EF_CONTROL_DOWN) ? ControlMask : 0) |
  25       ((flags & ui::EF_ALT_DOWN) ? Mod1Mask : 0) |
  26       ((flags & ui::EF_CAPS_LOCK_DOWN) ? LockMask : 0) |
  27       ((flags & ui::EF_ALTGR_DOWN) ? Mod5Mask : 0) |
  28       ((flags & ui::EF_COMMAND_DOWN) ? Mod4Mask : 0) |
  29       ((flags & ui::EF_MOD3_DOWN) ? Mod3Mask : 0) |
  30       ((flags & ui::EF_LEFT_MOUSE_BUTTON) ? Button1Mask: 0) |
  31       ((flags & ui::EF_MIDDLE_MOUSE_BUTTON) ? Button2Mask: 0) |
  32       ((flags & ui::EF_RIGHT_MOUSE_BUTTON) ? Button3Mask: 0);
  33 }
  34
  35 // Converts EventType to XKeyEvent type.
  36 int XKeyEventType(ui::EventType type) {
  37   switch (type) {
  38     case ui::ET_KEY_PRESSED:
  39       return KeyPress;
  40     case ui::ET_KEY_RELEASED:
  41       return KeyRelease;
  42     default:
  43       return 0;
  44   }
  45 }
  46
  47 // Converts EventType to XI2 event type.
  48 int XIKeyEventType(ui::EventType type) {
  49   switch (type) {
  50     case ui::ET_KEY_PRESSED:
  51       return XI_KeyPress;
  52     case ui::ET_KEY_RELEASED:
  53       return XI_KeyRelease;
  54     default:
  55       return 0;
  56   }
  57 }
  58
  59 int XIButtonEventType(ui::EventType type) {
  60   switch (type) {
  61     case ui::ET_MOUSEWHEEL:
  62     case ui::ET_MOUSE_PRESSED:
  63       // The button release X events for mouse wheels are dropped by Aura.
  64       return XI_ButtonPress;
  65     case ui::ET_MOUSE_RELEASED:
  66       return XI_ButtonRelease;
  67     default:
  68       NOTREACHED();
  69       return 0;
  70   }
  71 }
  72
  73 // Converts Aura event type and flag to X button event.
  74 unsigned int XButtonEventButton(ui::EventType type,
  75                                 int flags) {
  76   // Aura events don't keep track of mouse wheel button, so just return
  77   // the first mouse wheel button.
  78   if (type == ui::ET_MOUSEWHEEL)
  79     return Button4;
  80
  81   if (flags & ui::EF_LEFT_MOUSE_BUTTON)
  82     return Button1;
  83   if (flags & ui::EF_MIDDLE_MOUSE_BUTTON)
  84     return Button2;
  85   if (flags & ui::EF_RIGHT_MOUSE_BUTTON)
  86     return Button3;
  87
  88   return 0;
  89 }
  90
  91 void InitValuatorsForXIDeviceEvent(XIDeviceEvent* xiev) {
  92   int valuator_count = ui::DeviceDataManagerX11::DT_LAST_ENTRY;
  93   xiev->valuators.mask_len = (valuator_count / 8) + 1;
  94   xiev->valuators.mask = new unsigned char[xiev->valuators.mask_len];
  95   memset(xiev->valuators.mask, 0, xiev->valuators.mask_len);
  96   xiev->valuators.values = new double[valuator_count];
  97 }
  98
  99 XEvent* CreateXInput2Event(int deviceid,
 100                            int evtype,
 101                            int tracking_id,
 102                            const gfx::Point& location) {
 103   XEvent* event = new XEvent;
 104   memset(event, 0, sizeof(*event));
 105   event->type = GenericEvent;
 106   event->xcookie.data = new XIDeviceEvent;
 107   XIDeviceEvent* xiev =
 108       static_cast<XIDeviceEvent*>(event->xcookie.data);
 109   memset(xiev, 0, sizeof(XIDeviceEvent));
 110   xiev->deviceid = deviceid;
 111   xiev->sourceid = deviceid;
 112   xiev->evtype = evtype;
 113   xiev->detail = tracking_id;
 114   xiev->event_x = location.x();
 115   xiev->event_y = location.y();
 116   xiev->event = DefaultRootWindow(gfx::GetXDisplay());
 117   if (evtype == XI_ButtonPress || evtype == XI_ButtonRelease) {
 118     xiev->buttons.mask_len = 8;
 119     xiev->buttons.mask = new unsigned char[xiev->buttons.mask_len];
 120     memset(xiev->buttons.mask, 0, xiev->buttons.mask_len);
 121   }
 122   return event;
 123 }
 124
 125 }  // namespace
 126
 127 namespace ui {
 128
 129 // XInput2 events contain additional data that need to be explicitly freed (see
 130 // |CreateXInput2Event()|.
 131 void XEventDeleter::operator()(XEvent* event) {
 132   if (event->type == GenericEvent) {
 133     XIDeviceEvent* xiev =
 134         static_cast<XIDeviceEvent*>(event->xcookie.data);
 135     if (xiev) {
 136       delete[] xiev->valuators.mask;
 137       delete[] xiev->valuators.values;
 138       delete[] xiev->buttons.mask;
 139       delete xiev;
 140     }
 141   }
 142   delete event;
 143 }
 144
 145 ScopedXI2Event::ScopedXI2Event() {}
 146 ScopedXI2Event::~ScopedXI2Event() {}
 147
 148 void ScopedXI2Event::InitKeyEvent(EventType type,
 149                                   KeyboardCode key_code,
 150                                   int flags) {
 151   XDisplay* display = gfx::GetXDisplay();
 152   event_.reset(new XEvent);
 153   memset(event_.get(), 0, sizeof(XEvent));
 154   event_->type = XKeyEventType(type);
 155   CHECK_NE(0, event_->type);
 156   event_->xkey.serial = 0;
 157   event_->xkey.send_event = 0;
 158   event_->xkey.display = display;
 159   event_->xkey.time = 0;
 160   event_->xkey.window = 0;
 161   event_->xkey.root = 0;
 162   event_->xkey.subwindow = 0;
 163   event_->xkey.x = 0;
 164   event_->xkey.y = 0;
 165   event_->xkey.x_root = 0;
 166   event_->xkey.y_root = 0;
 167   event_->xkey.state = XEventState(flags);
 168   event_->xkey.keycode = XKeyCodeForWindowsKeyCode(key_code, flags, display);
 169   event_->xkey.same_screen = 1;
 170 }
 171
 172 void ScopedXI2Event::InitGenericKeyEvent(int deviceid,
 173                                          int sourceid,
 174                                          EventType type,
 175                                          KeyboardCode key_code,
 176                                          int flags) {
 177   event_.reset(
 178       CreateXInput2Event(deviceid, XIKeyEventType(type), 0, gfx::Point()));
 179   XIDeviceEvent* xievent = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 180   CHECK_NE(0, xievent->evtype);
 181   XDisplay* display = gfx::GetXDisplay();
 182   event_->xgeneric.display = display;
 183   xievent->display = display;
 184   xievent->mods.effective = XEventState(flags);
 185   xievent->detail = XKeyCodeForWindowsKeyCode(key_code, flags, display);
 186   xievent->sourceid = sourceid;
 187 }
 188
 189 void ScopedXI2Event::InitGenericButtonEvent(int deviceid,
 190                                             EventType type,
 191                                             const gfx::Point& location,
 192                                             int flags) {
 193   event_.reset(CreateXInput2Event(deviceid,
 194                                   XIButtonEventType(type), 0, gfx::Point()));
 195   XIDeviceEvent* xievent = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 196   xievent->mods.effective = XEventState(flags);
 197   xievent->detail = XButtonEventButton(type, flags);
 198   xievent->event_x = location.x();
 199   xievent->event_y = location.y();
 200   XISetMask(xievent->buttons.mask, xievent->detail);
 201   // Setup an empty valuator list for generic button events.
 202   SetUpValuators(std::vector<Valuator>());
 203 }
 204
 205 void ScopedXI2Event::InitGenericMouseWheelEvent(int deviceid,
 206                                                 int wheel_delta,
 207                                                 int flags) {
 208   InitGenericButtonEvent(deviceid, ui::ET_MOUSEWHEEL, gfx::Point(), flags);
 209   XIDeviceEvent* xievent = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 210   xievent->detail = wheel_delta > 0 ? Button4 : Button5;
 211 }
 212
 213 void ScopedXI2Event::InitScrollEvent(int deviceid,
 214                                      int x_offset,
 215                                      int y_offset,
 216                                      int x_offset_ordinal,
 217                                      int y_offset_ordinal,
 218                                      int finger_count) {
 219   event_.reset(CreateXInput2Event(deviceid, XI_Motion, 0, gfx::Point()));
 220
 221   Valuator valuators[] = {
 222     Valuator(DeviceDataManagerX11::DT_CMT_SCROLL_X, x_offset),
 223     Valuator(DeviceDataManagerX11::DT_CMT_SCROLL_Y, y_offset),
 224     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_X, x_offset_ordinal),
 225     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_Y, y_offset_ordinal),
 226     Valuator(DeviceDataManagerX11::DT_CMT_FINGER_COUNT, finger_count)
 227   };
 228   SetUpValuators(
 229       std::vector<Valuator>(valuators, valuators + arraysize(valuators)));
 230 }
 231
 232 void ScopedXI2Event::InitFlingScrollEvent(int deviceid,
 233                                           int x_velocity,
 234                                           int y_velocity,
 235                                           int x_velocity_ordinal,
 236                                           int y_velocity_ordinal,
 237                                           bool is_cancel) {
 238   event_.reset(CreateXInput2Event(deviceid, XI_Motion, deviceid, gfx::Point()));
 239
 240   Valuator valuators[] = {
 241     Valuator(DeviceDataManagerX11::DT_CMT_FLING_STATE, is_cancel ? 1 : 0),
 242     Valuator(DeviceDataManagerX11::DT_CMT_FLING_Y, y_velocity),
 243     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_Y, y_velocity_ordinal),
 244     Valuator(DeviceDataManagerX11::DT_CMT_FLING_X, x_velocity),
 245     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_X, x_velocity_ordinal)
 246   };
 247
 248   SetUpValuators(
 249       std::vector<Valuator>(valuators, valuators + arraysize(valuators)));
 250 }
 251
 252 void ScopedXI2Event::InitTouchEvent(int deviceid,
 253                                     int evtype,
 254                                     int tracking_id,
 255                                     const gfx::Point& location,
 256                                     const std::vector<Valuator>& valuators) {
 257   event_.reset(CreateXInput2Event(deviceid, evtype, tracking_id, location));
 258
 259   // If a timestamp was specified, setup the event.
 260   for (size_t i = 0; i < valuators.size(); ++i) {
 261     if (valuators[i].data_type ==
 262         DeviceDataManagerX11::DT_TOUCH_RAW_TIMESTAMP) {
 263       SetUpValuators(valuators);
 264       return;
 265     }
 266   }
 267
 268   // No timestamp was specified. Use |ui::EventTimeForNow()|.
 269   std::vector<Valuator> valuators_with_time = valuators;
 270   valuators_with_time.push_back(
 271       Valuator(DeviceDataManagerX11::DT_TOUCH_RAW_TIMESTAMP,
 272                (ui::EventTimeForNow()).InMicroseconds()));
 273   SetUpValuators(valuators_with_time);
 274 }
 275
 276 void ScopedXI2Event::SetUpValuators(const std::vector<Valuator>& valuators) {
 277   CHECK(event_.get());
 278   CHECK_EQ(GenericEvent, event_->type);
 279   XIDeviceEvent* xiev = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 280   InitValuatorsForXIDeviceEvent(xiev);
 281   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 282   for (size_t i = 0; i < valuators.size(); ++i) {
 283     manager->SetValuatorDataForTest(xiev, valuators[i].data_type,
 284                                     valuators[i].value);
 285   }
 286 }
 287
 288 void SetUpTouchPadForTest(int deviceid) {
 289   std::vector<int> device_list;
 290   device_list.push_back(deviceid);
 291
 292   TouchFactory::GetInstance()->SetPointerDeviceForTest(device_list);
 293   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 294   manager->SetDeviceListForTest(std::vector<int>(), device_list,
 295                                 std::vector<int>());
 296 }
 297
 298 void SetUpTouchDevicesForTest(const std::vector<int>& devices) {
 299   TouchFactory::GetInstance()->SetTouchDeviceForTest(devices);
 300   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 301   manager->SetDeviceListForTest(devices, std::vector<int>(),
 302                                 std::vector<int>());
 303 }
 304
 305 void SetUpPointerDevicesForTest(const std::vector<int>& devices) {
 306   TouchFactory::GetInstance()->SetPointerDeviceForTest(devices);
 307   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 308   manager->SetDeviceListForTest(std::vector<int>(), std::vector<int>(),
 309                                 devices);
 310 }
 311
 312 }  // namespace ui