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| 1 // Copyright (c) 2011 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 "views/touchui/touch_factory.h" | |
| 6 | |
| 7 #if defined(TOOLKIT_USES_GTK) | |
| 8 // TODO(sad) Remove all TOOLKIT_USES_GTK uses once we move to aura only. | |
| 9 #include <gtk/gtk.h> | |
| 10 #include <gdk/gdkx.h> | |
| 11 #endif | |
| 12 #include <X11/cursorfont.h> | |
| 13 #include <X11/extensions/XInput.h> | |
| 14 #include <X11/extensions/XInput2.h> | |
| 15 #include <X11/extensions/XIproto.h> | |
| 16 | |
| 17 #include "base/basictypes.h" | |
| 18 #include "base/compiler_specific.h" | |
| 19 #include "base/logging.h" | |
| 20 #include "base/message_loop.h" | |
| 21 #include "ui/base/x/x11_util.h" | |
| 22 | |
| 23 namespace { | |
| 24 | |
| 25 // The X cursor is hidden if it is idle for kCursorIdleSeconds seconds. | |
| 26 int kCursorIdleSeconds = 5; | |
| 27 | |
| 28 // Given the TouchParam, return the correspoding XIValuatorClassInfo using | |
| 29 // the X device information through Atom name matching. | |
| 30 XIValuatorClassInfo* FindTPValuator(Display* display, | |
| 31 XIDeviceInfo* info, | |
| 32 views::TouchFactory::TouchParam tp) { | |
| 33 // Lookup table for mapping TouchParam to Atom string used in X. | |
| 34 // A full set of Atom strings can be found at xserver-properties.h. | |
| 35 static struct { | |
| 36 views::TouchFactory::TouchParam tp; | |
| 37 const char* atom; | |
| 38 } kTouchParamAtom[] = { | |
| 39 { views::TouchFactory::TP_TOUCH_MAJOR, "Abs MT Touch Major" }, | |
| 40 { views::TouchFactory::TP_TOUCH_MINOR, "Abs MT Touch Minor" }, | |
| 41 { views::TouchFactory::TP_ORIENTATION, "Abs MT Orientation" }, | |
| 42 { views::TouchFactory::TP_PRESSURE, "Abs MT Pressure" }, | |
| 43 #if !defined(USE_XI2_MT) | |
| 44 // For Slot ID, See this chromeos revision: http://git.chromium.org/gitweb/? | |
| 45 // p=chromiumos/overlays/chromiumos-overlay.git; | |
| 46 // a=commit;h=9164d0a75e48c4867e4ef4ab51f743ae231c059a | |
| 47 { views::TouchFactory::TP_SLOT_ID, "Abs MT Slot ID" }, | |
| 48 #endif | |
| 49 { views::TouchFactory::TP_TRACKING_ID, "Abs MT Tracking ID" }, | |
| 50 { views::TouchFactory::TP_LAST_ENTRY, NULL }, | |
| 51 }; | |
| 52 | |
| 53 const char* atom_tp = NULL; | |
| 54 | |
| 55 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTouchParamAtom); i++) { | |
| 56 if (tp == kTouchParamAtom[i].tp) { | |
| 57 atom_tp = kTouchParamAtom[i].atom; | |
| 58 break; | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 if (!atom_tp) | |
| 63 return NULL; | |
| 64 | |
| 65 for (int i = 0; i < info->num_classes; i++) { | |
| 66 if (info->classes[i]->type != XIValuatorClass) | |
| 67 continue; | |
| 68 XIValuatorClassInfo* v = | |
| 69 reinterpret_cast<XIValuatorClassInfo*>(info->classes[i]); | |
| 70 | |
| 71 const char* atom = XGetAtomName(display, v->label); | |
| 72 if (atom && strcmp(atom, atom_tp) == 0) | |
| 73 return v; | |
| 74 } | |
| 75 | |
| 76 return NULL; | |
| 77 } | |
| 78 | |
| 79 #if defined(TOOLKIT_USES_GTK) | |
| 80 // Setup XInput2 select for the GtkWidget. | |
| 81 gboolean GtkWidgetRealizeCallback(GSignalInvocationHint* hint, guint nparams, | |
| 82 const GValue* pvalues, gpointer data) { | |
| 83 GtkWidget* widget = GTK_WIDGET(g_value_get_object(pvalues)); | |
| 84 GdkWindow* window = widget->window; | |
| 85 views::TouchFactory* factory = static_cast<views::TouchFactory*>(data); | |
| 86 | |
| 87 if (GDK_WINDOW_TYPE(window) != GDK_WINDOW_TOPLEVEL && | |
| 88 GDK_WINDOW_TYPE(window) != GDK_WINDOW_CHILD && | |
| 89 GDK_WINDOW_TYPE(window) != GDK_WINDOW_DIALOG) | |
| 90 return true; | |
| 91 | |
| 92 factory->SetupXI2ForXWindow(GDK_WINDOW_XID(window)); | |
| 93 return true; | |
| 94 } | |
| 95 | |
| 96 // We need to capture all the GDK windows that get created, and start | |
| 97 // listening for XInput2 events. So we setup a callback to the 'realize' | |
| 98 // signal for GTK+ widgets, so that whenever the signal triggers for any | |
| 99 // GtkWidget, which means the GtkWidget should now have a GdkWindow, we can | |
| 100 // setup XInput2 events for the GdkWindow. | |
| 101 guint realize_signal_id = 0; | |
| 102 guint realize_hook_id = 0; | |
| 103 | |
| 104 void SetupGtkWidgetRealizeNotifier(views::TouchFactory* factory) { | |
| 105 gpointer klass = g_type_class_ref(GTK_TYPE_WIDGET); | |
| 106 | |
| 107 g_signal_parse_name("realize", GTK_TYPE_WIDGET, | |
| 108 &realize_signal_id, NULL, FALSE); | |
| 109 realize_hook_id = g_signal_add_emission_hook(realize_signal_id, 0, | |
| 110 GtkWidgetRealizeCallback, static_cast<gpointer>(factory), NULL); | |
| 111 | |
| 112 g_type_class_unref(klass); | |
| 113 } | |
| 114 | |
| 115 void RemoveGtkWidgetRealizeNotifier() { | |
| 116 if (realize_signal_id != 0) | |
| 117 g_signal_remove_emission_hook(realize_signal_id, realize_hook_id); | |
| 118 realize_signal_id = 0; | |
| 119 realize_hook_id = 0; | |
| 120 } | |
| 121 #endif | |
| 122 | |
| 123 } // namespace | |
| 124 | |
| 125 namespace views { | |
| 126 | |
| 127 // static | |
| 128 TouchFactory* TouchFactory::GetInstance() { | |
| 129 return Singleton<TouchFactory>::get(); | |
| 130 } | |
| 131 | |
| 132 TouchFactory::TouchFactory() | |
| 133 : is_cursor_visible_(true), | |
| 134 keep_mouse_cursor_(false), | |
| 135 cursor_timer_(), | |
| 136 pointer_device_lookup_(), | |
| 137 #if defined(USE_XI2_MT) | |
| 138 touch_device_list_() { | |
| 139 #else | |
| 140 touch_device_list_(), | |
| 141 slots_used_() { | |
| 142 #endif | |
| 143 #if defined(TOUCH_UI) | |
| 144 if (!base::MessagePumpForUI::HasXInput2()) | |
| 145 return; | |
| 146 #endif | |
| 147 | |
| 148 char nodata[] = { 0, 0, 0, 0, 0, 0, 0, 0 }; | |
| 149 XColor black; | |
| 150 black.red = black.green = black.blue = 0; | |
| 151 Display* display = ui::GetXDisplay(); | |
| 152 Pixmap blank = XCreateBitmapFromData(display, ui::GetX11RootWindow(), | |
| 153 nodata, 8, 8); | |
| 154 invisible_cursor_ = XCreatePixmapCursor(display, blank, blank, | |
| 155 &black, &black, 0, 0); | |
| 156 arrow_cursor_ = XCreateFontCursor(display, XC_arrow); | |
| 157 | |
| 158 SetCursorVisible(false, false); | |
| 159 UpdateDeviceList(display); | |
| 160 | |
| 161 #if defined(TOOLKIT_USES_GTK) | |
| 162 // TODO(sad): Here, we only setup so that the X windows created by GTK+ are | |
| 163 // setup for XInput2 events. We need a way to listen for XInput2 events for X | |
| 164 // windows created by other means (e.g. for context menus). | |
| 165 SetupGtkWidgetRealizeNotifier(this); | |
| 166 #endif | |
| 167 // Make sure the list of devices is kept up-to-date by listening for | |
| 168 // XI_HierarchyChanged event on the root window. | |
| 169 unsigned char mask[XIMaskLen(XI_LASTEVENT)]; | |
| 170 memset(mask, 0, sizeof(mask)); | |
| 171 | |
| 172 XISetMask(mask, XI_HierarchyChanged); | |
| 173 | |
| 174 XIEventMask evmask; | |
| 175 evmask.deviceid = XIAllDevices; | |
| 176 evmask.mask_len = sizeof(mask); | |
| 177 evmask.mask = mask; | |
| 178 XISelectEvents(display, ui::GetX11RootWindow(), &evmask, 1); | |
| 179 } | |
| 180 | |
| 181 TouchFactory::~TouchFactory() { | |
| 182 #if defined(TOUCH_UI) | |
| 183 if (!base::MessagePumpForUI::HasXInput2()) | |
| 184 return; | |
| 185 #endif | |
| 186 | |
| 187 SetCursorVisible(true, false); | |
| 188 Display* display = ui::GetXDisplay(); | |
| 189 XFreeCursor(display, invisible_cursor_); | |
| 190 XFreeCursor(display, arrow_cursor_); | |
| 191 | |
| 192 #if defined(TOOLKIT_USES_GTK) | |
| 193 RemoveGtkWidgetRealizeNotifier(); | |
| 194 #endif | |
| 195 } | |
| 196 | |
| 197 void TouchFactory::UpdateDeviceList(Display* display) { | |
| 198 // Detect touch devices. | |
| 199 // NOTE: The new API for retrieving the list of devices (XIQueryDevice) does | |
| 200 // not provide enough information to detect a touch device. As a result, the | |
| 201 // old version of query function (XListInputDevices) is used instead. | |
| 202 // If XInput2 is not supported, this will return null (with count of -1) so | |
| 203 // we assume there cannot be any touch devices. | |
| 204 int count = 0; | |
| 205 touch_device_lookup_.reset(); | |
| 206 touch_device_list_.clear(); | |
| 207 #if !defined(USE_XI2_MT) | |
| 208 XDeviceInfo* devlist = XListInputDevices(display, &count); | |
| 209 for (int i = 0; i < count; i++) { | |
| 210 if (devlist[i].type) { | |
| 211 const char* devtype = XGetAtomName(display, devlist[i].type); | |
| 212 if (devtype && !strcmp(devtype, XI_TOUCHSCREEN)) { | |
| 213 touch_device_lookup_[devlist[i].id] = true; | |
| 214 touch_device_list_.push_back(devlist[i].id); | |
| 215 } | |
| 216 } | |
| 217 } | |
| 218 if (devlist) | |
| 219 XFreeDeviceList(devlist); | |
| 220 #endif | |
| 221 | |
| 222 // Instead of asking X for the list of devices all the time, let's maintain a | |
| 223 // list of pointer devices we care about. | |
| 224 // It should not be necessary to select for slave devices. XInput2 provides | |
| 225 // enough information to the event callback to decide which slave device | |
| 226 // triggered the event, thus decide whether the 'pointer event' is a | |
| 227 // 'mouse event' or a 'touch event'. | |
| 228 // However, on some desktops, some events from a master pointer are | |
| 229 // not delivered to the client. So we select for slave devices instead. | |
| 230 // If the touch device has 'GrabDevice' set and 'SendCoreEvents' unset (which | |
| 231 // is possible), then the device is detected as a floating device, and a | |
| 232 // floating device is not connected to a master device. So it is necessary to | |
| 233 // also select on the floating devices. | |
| 234 pointer_device_lookup_.reset(); | |
| 235 XIDeviceInfo* devices = XIQueryDevice(display, XIAllDevices, &count); | |
| 236 for (int i = 0; i < count; i++) { | |
| 237 XIDeviceInfo* devinfo = devices + i; | |
| 238 #if defined(USE_XI2_MT) | |
| 239 for (int k = 0; k < devinfo->num_classes; ++k) { | |
| 240 XIAnyClassInfo* xiclassinfo = devinfo->classes[k]; | |
| 241 if (xiclassinfo->type == XITouchClass) { | |
| 242 XITouchClassInfo* tci = | |
| 243 reinterpret_cast<XITouchClassInfo *>(xiclassinfo); | |
| 244 // Only care direct touch device (such as touch screen) right now | |
| 245 if (tci->mode == XIDirectTouch) { | |
| 246 touch_device_lookup_[devinfo->deviceid] = true; | |
| 247 touch_device_list_.push_back(devinfo->deviceid); | |
| 248 } | |
| 249 } | |
| 250 } | |
| 251 #endif | |
| 252 if (devinfo->use == XIFloatingSlave || devinfo->use == XISlavePointer) | |
| 253 pointer_device_lookup_[devinfo->deviceid] = true; | |
| 254 } | |
| 255 if (devices) | |
| 256 XIFreeDeviceInfo(devices); | |
| 257 | |
| 258 SetupValuator(); | |
| 259 } | |
| 260 | |
| 261 bool TouchFactory::ShouldProcessXI2Event(XEvent* xev) { | |
| 262 DCHECK_EQ(GenericEvent, xev->type); | |
| 263 XIEvent* event = static_cast<XIEvent*>(xev->xcookie.data); | |
| 264 XIDeviceEvent* xiev = reinterpret_cast<XIDeviceEvent*>(event); | |
| 265 | |
| 266 #if defined(USE_XI2_MT) | |
| 267 if (event->evtype == XI_TouchBegin || | |
| 268 event->evtype == XI_TouchUpdate || | |
| 269 event->evtype == XI_TouchEnd) { | |
| 270 return touch_device_lookup_[xiev->sourceid]; | |
| 271 } | |
| 272 #endif | |
| 273 if (event->evtype != XI_ButtonPress && | |
| 274 event->evtype != XI_ButtonRelease && | |
| 275 event->evtype != XI_Motion) | |
| 276 return true; | |
| 277 | |
| 278 return pointer_device_lookup_[xiev->deviceid]; | |
| 279 } | |
| 280 | |
| 281 void TouchFactory::SetupXI2ForXWindow(Window window) { | |
| 282 // Setup mask for mouse events. It is possible that a device is loaded/plugged | |
| 283 // in after we have setup XInput2 on a window. In such cases, we need to | |
| 284 // either resetup XInput2 for the window, so that we get events from the new | |
| 285 // device, or we need to listen to events from all devices, and then filter | |
| 286 // the events from uninteresting devices. We do the latter because that's | |
| 287 // simpler. | |
| 288 | |
| 289 Display* display = ui::GetXDisplay(); | |
| 290 | |
| 291 unsigned char mask[XIMaskLen(XI_LASTEVENT)]; | |
| 292 memset(mask, 0, sizeof(mask)); | |
| 293 | |
| 294 #if defined(USE_XI2_MT) | |
| 295 XISetMask(mask, XI_TouchBegin); | |
| 296 XISetMask(mask, XI_TouchUpdate); | |
| 297 XISetMask(mask, XI_TouchEnd); | |
| 298 #endif | |
| 299 XISetMask(mask, XI_ButtonPress); | |
| 300 XISetMask(mask, XI_ButtonRelease); | |
| 301 XISetMask(mask, XI_Motion); | |
| 302 | |
| 303 XIEventMask evmask; | |
| 304 evmask.deviceid = XIAllDevices; | |
| 305 evmask.mask_len = sizeof(mask); | |
| 306 evmask.mask = mask; | |
| 307 XISelectEvents(display, window, &evmask, 1); | |
| 308 XFlush(display); | |
| 309 } | |
| 310 | |
| 311 void TouchFactory::SetTouchDeviceList( | |
| 312 const std::vector<unsigned int>& devices) { | |
| 313 touch_device_lookup_.reset(); | |
| 314 touch_device_list_.clear(); | |
| 315 for (std::vector<unsigned int>::const_iterator iter = devices.begin(); | |
| 316 iter != devices.end(); ++iter) { | |
| 317 DCHECK(*iter < touch_device_lookup_.size()); | |
| 318 touch_device_lookup_[*iter] = true; | |
| 319 touch_device_list_.push_back(*iter); | |
| 320 } | |
| 321 | |
| 322 SetupValuator(); | |
| 323 } | |
| 324 | |
| 325 bool TouchFactory::IsTouchDevice(unsigned deviceid) const { | |
| 326 return deviceid < touch_device_lookup_.size() ? | |
| 327 touch_device_lookup_[deviceid] : false; | |
| 328 } | |
| 329 | |
| 330 #if !defined(USE_XI2_MT) | |
| 331 bool TouchFactory::IsSlotUsed(int slot) const { | |
| 332 CHECK_LT(slot, kMaxTouchPoints); | |
| 333 return slots_used_[slot]; | |
| 334 } | |
| 335 | |
| 336 void TouchFactory::SetSlotUsed(int slot, bool used) { | |
| 337 CHECK_LT(slot, kMaxTouchPoints); | |
| 338 slots_used_[slot] = used; | |
| 339 } | |
| 340 #endif | |
| 341 | |
| 342 bool TouchFactory::GrabTouchDevices(Display* display, ::Window window) { | |
| 343 #if defined(TOUCH_UI) | |
| 344 if (!base::MessagePumpForUI::HasXInput2() || | |
| 345 touch_device_list_.empty()) | |
| 346 return true; | |
| 347 #endif | |
| 348 | |
| 349 unsigned char mask[XIMaskLen(XI_LASTEVENT)]; | |
| 350 bool success = true; | |
| 351 | |
| 352 memset(mask, 0, sizeof(mask)); | |
| 353 #if defined(USE_XI2_MT) | |
| 354 XISetMask(mask, XI_TouchBegin); | |
| 355 XISetMask(mask, XI_TouchUpdate); | |
| 356 XISetMask(mask, XI_TouchEnd); | |
| 357 #endif | |
| 358 XISetMask(mask, XI_ButtonPress); | |
| 359 XISetMask(mask, XI_ButtonRelease); | |
| 360 XISetMask(mask, XI_Motion); | |
| 361 | |
| 362 XIEventMask evmask; | |
| 363 evmask.mask_len = sizeof(mask); | |
| 364 evmask.mask = mask; | |
| 365 for (std::vector<int>::const_iterator iter = | |
| 366 touch_device_list_.begin(); | |
| 367 iter != touch_device_list_.end(); ++iter) { | |
| 368 evmask.deviceid = *iter; | |
| 369 Status status = XIGrabDevice(display, *iter, window, CurrentTime, None, | |
| 370 GrabModeAsync, GrabModeAsync, False, &evmask); | |
| 371 success = success && status == GrabSuccess; | |
| 372 } | |
| 373 | |
| 374 return success; | |
| 375 } | |
| 376 | |
| 377 bool TouchFactory::UngrabTouchDevices(Display* display) { | |
| 378 #if defined(TOUCH_UI) | |
| 379 if (!base::MessagePumpForUI::HasXInput2()) | |
| 380 return true; | |
| 381 #endif | |
| 382 | |
| 383 bool success = true; | |
| 384 for (std::vector<int>::const_iterator iter = | |
| 385 touch_device_list_.begin(); | |
| 386 iter != touch_device_list_.end(); ++iter) { | |
| 387 Status status = XIUngrabDevice(display, *iter, CurrentTime); | |
| 388 success = success && status == GrabSuccess; | |
| 389 } | |
| 390 return success; | |
| 391 } | |
| 392 | |
| 393 void TouchFactory::SetCursorVisible(bool show, bool start_timer) { | |
| 394 #if defined(TOUCH_UI) | |
| 395 if (!base::MessagePumpForUI::HasXInput2()) | |
| 396 return; | |
| 397 #endif | |
| 398 | |
| 399 // The cursor is going to be shown. Reset the timer for hiding it. | |
| 400 if (show && start_timer) { | |
| 401 cursor_timer_.Stop(); | |
| 402 cursor_timer_.Start( | |
| 403 FROM_HERE, base::TimeDelta::FromSeconds(kCursorIdleSeconds), | |
| 404 this, &TouchFactory::HideCursorForInactivity); | |
| 405 } else { | |
| 406 cursor_timer_.Stop(); | |
| 407 } | |
| 408 | |
| 409 if (show == is_cursor_visible_) | |
| 410 return; | |
| 411 | |
| 412 is_cursor_visible_ = show; | |
| 413 | |
| 414 Display* display = ui::GetXDisplay(); | |
| 415 Window window = DefaultRootWindow(display); | |
| 416 | |
| 417 if (is_cursor_visible_) { | |
| 418 XDefineCursor(display, window, arrow_cursor_); | |
| 419 } else { | |
| 420 XDefineCursor(display, window, invisible_cursor_); | |
| 421 } | |
| 422 } | |
| 423 | |
| 424 void TouchFactory::SetupValuator() { | |
| 425 memset(valuator_lookup_, -1, sizeof(valuator_lookup_)); | |
| 426 memset(touch_param_min_, 0, sizeof(touch_param_min_)); | |
| 427 memset(touch_param_max_, 0, sizeof(touch_param_max_)); | |
| 428 | |
| 429 Display* display = ui::GetXDisplay(); | |
| 430 int ndevice; | |
| 431 XIDeviceInfo* info_list = XIQueryDevice(display, XIAllDevices, &ndevice); | |
| 432 | |
| 433 for (int i = 0; i < ndevice; i++) { | |
| 434 XIDeviceInfo* info = info_list + i; | |
| 435 | |
| 436 if (!IsTouchDevice(info->deviceid)) | |
| 437 continue; | |
| 438 | |
| 439 for (int j = 0; j < TP_LAST_ENTRY; j++) { | |
| 440 TouchParam tp = static_cast<TouchParam>(j); | |
| 441 XIValuatorClassInfo* valuator = FindTPValuator(display, info, tp); | |
| 442 if (valuator) { | |
| 443 valuator_lookup_[info->deviceid][j] = valuator->number; | |
| 444 touch_param_min_[info->deviceid][j] = valuator->min; | |
| 445 touch_param_max_[info->deviceid][j] = valuator->max; | |
| 446 } | |
| 447 } | |
| 448 } | |
| 449 | |
| 450 if (info_list) | |
| 451 XIFreeDeviceInfo(info_list); | |
| 452 } | |
| 453 | |
| 454 bool TouchFactory::ExtractTouchParam(const XEvent& xev, | |
| 455 TouchParam tp, | |
| 456 float* value) { | |
| 457 XIDeviceEvent* xiev = static_cast<XIDeviceEvent*>(xev.xcookie.data); | |
| 458 if (xiev->sourceid >= kMaxDeviceNum) | |
| 459 return false; | |
| 460 int v = valuator_lookup_[xiev->sourceid][tp]; | |
| 461 if (v >= 0 && XIMaskIsSet(xiev->valuators.mask, v)) { | |
| 462 *value = xiev->valuators.values[v]; | |
| 463 return true; | |
| 464 } | |
| 465 | |
| 466 #if defined(USE_XI2_MT) | |
| 467 // With XInput2 MT, Tracking ID is provided in the detail field. | |
| 468 if (tp == TP_TRACKING_ID) { | |
| 469 *value = xiev->detail; | |
| 470 return true; | |
| 471 } | |
| 472 #endif | |
| 473 | |
| 474 return false; | |
| 475 } | |
| 476 | |
| 477 bool TouchFactory::NormalizeTouchParam(unsigned int deviceid, | |
| 478 TouchParam tp, | |
| 479 float* value) { | |
| 480 float max_value; | |
| 481 float min_value; | |
| 482 if (GetTouchParamRange(deviceid, tp, &min_value, &max_value)) { | |
| 483 *value = (*value - min_value) / (max_value - min_value); | |
| 484 DCHECK(*value >= 0.0 && *value <= 1.0); | |
| 485 return true; | |
| 486 } | |
| 487 return false; | |
| 488 } | |
| 489 | |
| 490 bool TouchFactory::GetTouchParamRange(unsigned int deviceid, | |
| 491 TouchParam tp, | |
| 492 float* min, | |
| 493 float* max) { | |
| 494 if (valuator_lookup_[deviceid][tp] >= 0) { | |
| 495 *min = touch_param_min_[deviceid][tp]; | |
| 496 *max = touch_param_max_[deviceid][tp]; | |
| 497 return true; | |
| 498 } | |
| 499 return false; | |
| 500 } | |
| 501 | |
| 502 } // namespace views | |
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Chromium Code Reviews
Issue 7942004:
Consolidate/cleanup event cracking code; single out GdkEvents. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src