src/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/event_constants.h"
  14 #include "ui/events/event_utils.h"
  15 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
  16 #include "ui/events/x/touch_factory_x11.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_NUMPAD_KEY) ? Mod2Mask : 0) |
  31       ((flags & ui::EF_LEFT_MOUSE_BUTTON) ? Button1Mask: 0) |
  32       ((flags & ui::EF_MIDDLE_MOUSE_BUTTON) ? Button2Mask: 0) |
  33       ((flags & ui::EF_RIGHT_MOUSE_BUTTON) ? Button3Mask: 0);
  34 }
  35
  36 // Converts EventType to XKeyEvent type.
  37 int XKeyEventType(ui::EventType type) {
  38   switch (type) {
  39     case ui::ET_KEY_PRESSED:
  40       return KeyPress;
  41     case ui::ET_KEY_RELEASED:
  42       return KeyRelease;
  43     default:
  44       return 0;
  45   }
  46 }
  47
  48 // Converts EventType to XI2 event type.
  49 int XIKeyEventType(ui::EventType type) {
  50   switch (type) {
  51     case ui::ET_KEY_PRESSED:
  52       return XI_KeyPress;
  53     case ui::ET_KEY_RELEASED:
  54       return XI_KeyRelease;
  55     default:
  56       return 0;
  57   }
  58 }
  59
  60 int XIButtonEventType(ui::EventType type) {
  61   switch (type) {
  62     case ui::ET_MOUSEWHEEL:
  63     case ui::ET_MOUSE_PRESSED:
  64       // The button release X events for mouse wheels are dropped by Aura.
  65       return XI_ButtonPress;
  66     case ui::ET_MOUSE_RELEASED:
  67       return XI_ButtonRelease;
  68     default:
  69       NOTREACHED();
  70       return 0;
  71   }
  72 }
  73
  74 // Converts Aura event type and flag to X button event.
  75 unsigned int XButtonEventButton(ui::EventType type,
  76                                 int flags) {
  77   // Aura events don't keep track of mouse wheel button, so just return
  78   // the first mouse wheel button.
  79   if (type == ui::ET_MOUSEWHEEL)
  80     return Button4;
  81
  82   if (flags & ui::EF_LEFT_MOUSE_BUTTON)
  83     return Button1;
  84   if (flags & ui::EF_MIDDLE_MOUSE_BUTTON)
  85     return Button2;
  86   if (flags & ui::EF_RIGHT_MOUSE_BUTTON)
  87     return Button3;
  88
  89   return 0;
  90 }
  91
  92 void InitValuatorsForXIDeviceEvent(XIDeviceEvent* xiev) {
  93   int valuator_count = ui::DeviceDataManagerX11::DT_LAST_ENTRY;
  94   xiev->valuators.mask_len = (valuator_count / 8) + 1;
  95   xiev->valuators.mask = new unsigned char[xiev->valuators.mask_len];
  96   memset(xiev->valuators.mask, 0, xiev->valuators.mask_len);
  97   xiev->valuators.values = new double[valuator_count];
  98 }
  99
 100 XEvent* CreateXInput2Event(int deviceid,
 101                            int evtype,
 102                            int tracking_id,
 103                            const gfx::Point& location) {
 104   XEvent* event = new XEvent;
 105   memset(event, 0, sizeof(*event));
 106   event->type = GenericEvent;
 107   event->xcookie.data = new XIDeviceEvent;
 108   XIDeviceEvent* xiev =
 109       static_cast<XIDeviceEvent*>(event->xcookie.data);
 110   memset(xiev, 0, sizeof(XIDeviceEvent));
 111   xiev->deviceid = deviceid;
 112   xiev->sourceid = deviceid;
 113   xiev->evtype = evtype;
 114   xiev->detail = tracking_id;
 115   xiev->event_x = location.x();
 116   xiev->event_y = location.y();
 117   xiev->event = DefaultRootWindow(gfx::GetXDisplay());
 118   if (evtype == XI_ButtonPress || evtype == XI_ButtonRelease) {
 119     xiev->buttons.mask_len = 8;
 120     xiev->buttons.mask = new unsigned char[xiev->buttons.mask_len];
 121     memset(xiev->buttons.mask, 0, xiev->buttons.mask_len);
 122   }
 123   return event;
 124 }
 125
 126 }  // namespace
 127
 128 namespace ui {
 129
 130 // XInput2 events contain additional data that need to be explicitly freed (see
 131 // |CreateXInput2Event()|.
 132 void XEventDeleter::operator()(XEvent* event) {
 133   if (event->type == GenericEvent) {
 134     XIDeviceEvent* xiev =
 135         static_cast<XIDeviceEvent*>(event->xcookie.data);
 136     if (xiev) {
 137       delete[] xiev->valuators.mask;
 138       delete[] xiev->valuators.values;
 139       delete[] xiev->buttons.mask;
 140       delete xiev;
 141     }
 142   }
 143   delete event;
 144 }
 145
 146 ScopedXI2Event::ScopedXI2Event() {}
 147 ScopedXI2Event::~ScopedXI2Event() {}
 148
 149 void ScopedXI2Event::InitKeyEvent(EventType type,
 150                                   KeyboardCode key_code,
 151                                   int flags) {
 152   XDisplay* display = gfx::GetXDisplay();
 153   event_.reset(new XEvent);
 154   memset(event_.get(), 0, sizeof(XEvent));
 155   event_->type = XKeyEventType(type);
 156   CHECK_NE(0, event_->type);
 157   event_->xkey.serial = 0;
 158   event_->xkey.send_event = 0;
 159   event_->xkey.display = display;
 160   event_->xkey.time = 0;
 161   event_->xkey.window = 0;
 162   event_->xkey.root = 0;
 163   event_->xkey.subwindow = 0;
 164   event_->xkey.x = 0;
 165   event_->xkey.y = 0;
 166   event_->xkey.x_root = 0;
 167   event_->xkey.y_root = 0;
 168   event_->xkey.state = XEventState(flags);
 169   event_->xkey.keycode = XKeyCodeForWindowsKeyCode(key_code, flags, display);
 170   event_->xkey.same_screen = 1;
 171 }
 172
 173 void ScopedXI2Event::InitGenericKeyEvent(int deviceid,
 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 }
 187
 188 void ScopedXI2Event::InitGenericButtonEvent(int deviceid,
 189                                             EventType type,
 190                                             const gfx::Point& location,
 191                                             int flags) {
 192   event_.reset(CreateXInput2Event(deviceid,
 193                                   XIButtonEventType(type), 0, gfx::Point()));
 194   XIDeviceEvent* xievent = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 195   xievent->mods.effective = XEventState(flags);
 196   xievent->detail = XButtonEventButton(type, flags);
 197   xievent->event_x = location.x();
 198   xievent->event_y = location.y();
 199   XISetMask(xievent->buttons.mask, xievent->detail);
 200   // Setup an empty valuator list for generic button events.
 201   SetUpValuators(std::vector<Valuator>());
 202 }
 203
 204 void ScopedXI2Event::InitGenericMouseWheelEvent(int deviceid,
 205                                                 int wheel_delta,
 206                                                 int flags) {
 207   InitGenericButtonEvent(deviceid, ui::ET_MOUSEWHEEL, gfx::Point(), flags);
 208   XIDeviceEvent* xievent = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 209   xievent->detail = wheel_delta > 0 ? Button4 : Button5;
 210 }
 211
 212 void ScopedXI2Event::InitScrollEvent(int deviceid,
 213                                      int x_offset,
 214                                      int y_offset,
 215                                      int x_offset_ordinal,
 216                                      int y_offset_ordinal,
 217                                      int finger_count) {
 218   event_.reset(CreateXInput2Event(deviceid, XI_Motion, 0, gfx::Point()));
 219
 220   Valuator valuators[] = {
 221     Valuator(DeviceDataManagerX11::DT_CMT_SCROLL_X, x_offset),
 222     Valuator(DeviceDataManagerX11::DT_CMT_SCROLL_Y, y_offset),
 223     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_X, x_offset_ordinal),
 224     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_Y, y_offset_ordinal),
 225     Valuator(DeviceDataManagerX11::DT_CMT_FINGER_COUNT, finger_count)
 226   };
 227   SetUpValuators(
 228       std::vector<Valuator>(valuators, valuators + arraysize(valuators)));
 229 }
 230
 231 void ScopedXI2Event::InitFlingScrollEvent(int deviceid,
 232                                           int x_velocity,
 233                                           int y_velocity,
 234                                           int x_velocity_ordinal,
 235                                           int y_velocity_ordinal,
 236                                           bool is_cancel) {
 237   event_.reset(CreateXInput2Event(deviceid, XI_Motion, deviceid, gfx::Point()));
 238
 239   Valuator valuators[] = {
 240     Valuator(DeviceDataManagerX11::DT_CMT_FLING_STATE, is_cancel ? 1 : 0),
 241     Valuator(DeviceDataManagerX11::DT_CMT_FLING_Y, y_velocity),
 242     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_Y, y_velocity_ordinal),
 243     Valuator(DeviceDataManagerX11::DT_CMT_FLING_X, x_velocity),
 244     Valuator(DeviceDataManagerX11::DT_CMT_ORDINAL_X, x_velocity_ordinal)
 245   };
 246
 247   SetUpValuators(
 248       std::vector<Valuator>(valuators, valuators + arraysize(valuators)));
 249 }
 250
 251 void ScopedXI2Event::InitTouchEvent(int deviceid,
 252                                     int evtype,
 253                                     int tracking_id,
 254                                     const gfx::Point& location,
 255                                     const std::vector<Valuator>& valuators) {
 256   event_.reset(CreateXInput2Event(deviceid, evtype, tracking_id, location));
 257
 258   // If a timestamp was specified, setup the event.
 259   for (size_t i = 0; i < valuators.size(); ++i) {
 260     if (valuators[i].data_type ==
 261         DeviceDataManagerX11::DT_TOUCH_RAW_TIMESTAMP) {
 262       SetUpValuators(valuators);
 263       return;
 264     }
 265   }
 266
 267   // No timestamp was specified. Use |ui::EventTimeForNow()|.
 268   std::vector<Valuator> valuators_with_time = valuators;
 269   valuators_with_time.push_back(
 270       Valuator(DeviceDataManagerX11::DT_TOUCH_RAW_TIMESTAMP,
 271                (ui::EventTimeForNow()).InMicroseconds()));
 272   SetUpValuators(valuators_with_time);
 273 }
 274
 275 void ScopedXI2Event::SetUpValuators(const std::vector<Valuator>& valuators) {
 276   CHECK(event_.get());
 277   CHECK_EQ(GenericEvent, event_->type);
 278   XIDeviceEvent* xiev = static_cast<XIDeviceEvent*>(event_->xcookie.data);
 279   InitValuatorsForXIDeviceEvent(xiev);
 280   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 281   for (size_t i = 0; i < valuators.size(); ++i) {
 282     manager->SetValuatorDataForTest(xiev, valuators[i].data_type,
 283                                     valuators[i].value);
 284   }
 285 }
 286
 287 void SetUpTouchPadForTest(unsigned int deviceid) {
 288   std::vector<unsigned int> device_list;
 289   device_list.push_back(deviceid);
 290
 291   TouchFactory::GetInstance()->SetPointerDeviceForTest(device_list);
 292   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 293   manager->SetDeviceListForTest(std::vector<unsigned int>(), device_list);
 294 }
 295
 296 void SetUpTouchDevicesForTest(const std::vector<unsigned int>& devices) {
 297   TouchFactory::GetInstance()->SetTouchDeviceForTest(devices);
 298   ui::DeviceDataManagerX11* manager = ui::DeviceDataManagerX11::GetInstance();
 299   manager->SetDeviceListForTest(devices, std::vector<unsigned int>());
 300 }
 301
 302 }  // namespace ui