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| 1 /* | |
| 2 * Copyright (C) 2006-2009 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "WebInputEventFactory.h" | |
| 33 | |
| 34 #include "KeyboardCodes.h" | |
| 35 #include "KeyCodeConversion.h" | |
| 36 | |
| 37 #include "WebInputEvent.h" | |
| 38 | |
| 39 #include <gdk/gdk.h> | |
| 40 #include <gdk/gdkkeysyms.h> | |
| 41 #include <gtk/gtkversion.h> | |
| 42 | |
| 43 #include <wtf/Assertions.h> | |
| 44 | |
| 45 namespace WebKit { | |
| 46 | |
| 47 static double gdkEventTimeToWebEventTime(guint32 time) | |
| 48 { | |
| 49 // Convert from time in ms to time in sec. | |
| 50 return time / 1000.0; | |
| 51 } | |
| 52 | |
| 53 static int gdkStateToWebEventModifiers(guint state) | |
| 54 { | |
| 55 int modifiers = 0; | |
| 56 if (state & GDK_SHIFT_MASK) | |
| 57 modifiers |= WebInputEvent::ShiftKey; | |
| 58 if (state & GDK_CONTROL_MASK) | |
| 59 modifiers |= WebInputEvent::ControlKey; | |
| 60 if (state & GDK_MOD1_MASK) | |
| 61 modifiers |= WebInputEvent::AltKey; | |
| 62 #if GTK_CHECK_VERSION(2, 10, 0) | |
| 63 if (state & GDK_META_MASK) | |
| 64 modifiers |= WebInputEvent::MetaKey; | |
| 65 #endif | |
| 66 if (state & GDK_BUTTON1_MASK) | |
| 67 modifiers |= WebInputEvent::LeftButtonDown; | |
| 68 if (state & GDK_BUTTON2_MASK) | |
| 69 modifiers |= WebInputEvent::MiddleButtonDown; | |
| 70 if (state & GDK_BUTTON3_MASK) | |
| 71 modifiers |= WebInputEvent::RightButtonDown; | |
| 72 return modifiers; | |
| 73 } | |
| 74 | |
| 75 static int gdkEventToWindowsKeyCode(const GdkEventKey* event) | |
| 76 { | |
| 77 static const unsigned int hardwareCodeToGDKKeyval[] = { | |
| 78 0, // 0x00: | |
| 79 0, // 0x01: | |
| 80 0, // 0x02: | |
| 81 0, // 0x03: | |
| 82 0, // 0x04: | |
| 83 0, // 0x05: | |
| 84 0, // 0x06: | |
| 85 0, // 0x07: | |
| 86 0, // 0x08: | |
| 87 0, // 0x09: GDK_Escape | |
| 88 GDK_1, // 0x0A: GDK_1 | |
| 89 GDK_2, // 0x0B: GDK_2 | |
| 90 GDK_3, // 0x0C: GDK_3 | |
| 91 GDK_4, // 0x0D: GDK_4 | |
| 92 GDK_5, // 0x0E: GDK_5 | |
| 93 GDK_6, // 0x0F: GDK_6 | |
| 94 GDK_7, // 0x10: GDK_7 | |
| 95 GDK_8, // 0x11: GDK_8 | |
| 96 GDK_9, // 0x12: GDK_9 | |
| 97 GDK_0, // 0x13: GDK_0 | |
| 98 GDK_minus, // 0x14: GDK_minus | |
| 99 GDK_equal, // 0x15: GDK_equal | |
| 100 0, // 0x16: GDK_BackSpace | |
| 101 0, // 0x17: GDK_Tab | |
| 102 GDK_q, // 0x18: GDK_q | |
| 103 GDK_w, // 0x19: GDK_w | |
| 104 GDK_e, // 0x1A: GDK_e | |
| 105 GDK_r, // 0x1B: GDK_r | |
| 106 GDK_t, // 0x1C: GDK_t | |
| 107 GDK_y, // 0x1D: GDK_y | |
| 108 GDK_u, // 0x1E: GDK_u | |
| 109 GDK_i, // 0x1F: GDK_i | |
| 110 GDK_o, // 0x20: GDK_o | |
| 111 GDK_p, // 0x21: GDK_p | |
| 112 GDK_bracketleft, // 0x22: GDK_bracketleft | |
| 113 GDK_bracketright, // 0x23: GDK_bracketright | |
| 114 0, // 0x24: GDK_Return | |
| 115 0, // 0x25: GDK_Control_L | |
| 116 GDK_a, // 0x26: GDK_a | |
| 117 GDK_s, // 0x27: GDK_s | |
| 118 GDK_d, // 0x28: GDK_d | |
| 119 GDK_f, // 0x29: GDK_f | |
| 120 GDK_g, // 0x2A: GDK_g | |
| 121 GDK_h, // 0x2B: GDK_h | |
| 122 GDK_j, // 0x2C: GDK_j | |
| 123 GDK_k, // 0x2D: GDK_k | |
| 124 GDK_l, // 0x2E: GDK_l | |
| 125 GDK_semicolon, // 0x2F: GDK_semicolon | |
| 126 GDK_apostrophe, // 0x30: GDK_apostrophe | |
| 127 GDK_grave, // 0x31: GDK_grave | |
| 128 0, // 0x32: GDK_Shift_L | |
| 129 GDK_backslash, // 0x33: GDK_backslash | |
| 130 GDK_z, // 0x34: GDK_z | |
| 131 GDK_x, // 0x35: GDK_x | |
| 132 GDK_c, // 0x36: GDK_c | |
| 133 GDK_v, // 0x37: GDK_v | |
| 134 GDK_b, // 0x38: GDK_b | |
| 135 GDK_n, // 0x39: GDK_n | |
| 136 GDK_m, // 0x3A: GDK_m | |
| 137 GDK_comma, // 0x3B: GDK_comma | |
| 138 GDK_period, // 0x3C: GDK_period | |
| 139 GDK_slash, // 0x3D: GDK_slash | |
| 140 0, // 0x3E: GDK_Shift_R | |
| 141 }; | |
| 142 | |
| 143 // |windowsKeyCode| has to include a valid virtual-key code even when we | |
| 144 // use non-US layouts, e.g. even when we type an 'A' key of a US keyboard | |
| 145 // on the Hebrew layout, |windowsKeyCode| should be VK_A. | |
| 146 // On the other hand, |event->keyval| value depends on the current | |
| 147 // GdkKeymap object, i.e. when we type an 'A' key of a US keyboard on | |
| 148 // the Hebrew layout, |event->keyval| becomes GDK_hebrew_shin and this | |
| 149 // WebCore::windowsKeyCodeForKeyEvent() call returns 0. | |
| 150 // To improve compatibilty with Windows, we use |event->hardware_keycode| | |
| 151 // for retrieving its Windows key-code for the keys when the | |
| 152 // WebCore::windowsKeyCodeForEvent() call returns 0. | |
| 153 // We shouldn't use |event->hardware_keycode| for keys that GdkKeymap | |
| 154 // objects cannot change because |event->hardware_keycode| doesn't change | |
| 155 // even when we change the layout options, e.g. when we swap a control | |
| 156 // key and a caps-lock key, GTK doesn't swap their | |
| 157 // |event->hardware_keycode| values but swap their |event->keyval| values. | |
| 158 int windowsKeyCode = WebCore::windowsKeyCodeForKeyEvent(event->keyval); | |
| 159 if (windowsKeyCode) | |
| 160 return windowsKeyCode; | |
| 161 | |
| 162 const int tableSize = sizeof(hardwareCodeToGDKKeyval) / sizeof(hardwareCodeToGDKKeyval[0]); | |
| 163 if (event->hardware_keycode < tableSize) { | |
| 164 int keyval = hardwareCodeToGDKKeyval[event->hardware_keycode]; | |
| 165 if (keyval) | |
| 166 return WebCore::windowsKeyCodeForKeyEvent(keyval); | |
| 167 } | |
| 168 | |
| 169 // This key is one that keyboard-layout drivers cannot change. | |
| 170 // Use |event->keyval| to retrieve its |windowsKeyCode| value. | |
| 171 return WebCore::windowsKeyCodeForKeyEvent(event->keyval); | |
| 172 } | |
| 173 | |
| 174 // Gets the corresponding control character of a specified key code. See: | |
| 175 // http://en.wikipedia.org/wiki/Control_characters | |
| 176 // We emulate Windows behavior here. | |
| 177 static WebUChar getControlCharacter(int windowsKeyCode, bool shift) | |
| 178 { | |
| 179 if (windowsKeyCode >= WebCore::VKEY_A && windowsKeyCode <= WebCore::VKEY_Z) { | |
| 180 // ctrl-A ~ ctrl-Z map to \x01 ~ \x1A | |
| 181 return windowsKeyCode - WebCore::VKEY_A + 1; | |
| 182 } | |
| 183 if (shift) { | |
| 184 // following graphics chars require shift key to input. | |
| 185 switch (windowsKeyCode) { | |
| 186 // ctrl-@ maps to \x00 (Null byte) | |
| 187 case WebCore::VKEY_2: | |
| 188 return 0; | |
| 189 // ctrl-^ maps to \x1E (Record separator, Information separator two) | |
| 190 case WebCore::VKEY_6: | |
| 191 return 0x1E; | |
| 192 // ctrl-_ maps to \x1F (Unit separator, Information separator one) | |
| 193 case WebCore::VKEY_OEM_MINUS: | |
| 194 return 0x1F; | |
| 195 // Returns 0 for all other keys to avoid inputting unexpected chars. | |
| 196 default: | |
| 197 return 0; | |
| 198 } | |
| 199 } else { | |
| 200 switch (windowsKeyCode) { | |
| 201 // ctrl-[ maps to \x1B (Escape) | |
| 202 case WebCore::VKEY_OEM_4: | |
| 203 return 0x1B; | |
| 204 // ctrl-\ maps to \x1C (File separator, Information separator four) | |
| 205 case WebCore::VKEY_OEM_5: | |
| 206 return 0x1C; | |
| 207 // ctrl-] maps to \x1D (Group separator, Information separator three) | |
| 208 case WebCore::VKEY_OEM_6: | |
| 209 return 0x1D; | |
| 210 // ctrl-Enter maps to \x0A (Line feed) | |
| 211 case WebCore::VKEY_RETURN: | |
| 212 return 0x0A; | |
| 213 // Returns 0 for all other keys to avoid inputting unexpected chars. | |
| 214 default: | |
| 215 return 0; | |
| 216 } | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 // WebKeyboardEvent ----------------------------------------------------------- | |
| 221 | |
| 222 WebKeyboardEvent WebInputEventFactory::keyboardEvent(const GdkEventKey* event) | |
| 223 { | |
| 224 WebKeyboardEvent result; | |
| 225 | |
| 226 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 227 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 228 | |
| 229 switch (event->type) { | |
| 230 case GDK_KEY_RELEASE: | |
| 231 result.type = WebInputEvent::KeyUp; | |
| 232 break; | |
| 233 case GDK_KEY_PRESS: | |
| 234 result.type = WebInputEvent::RawKeyDown; | |
| 235 break; | |
| 236 default: | |
| 237 ASSERT_NOT_REACHED(); | |
| 238 } | |
| 239 | |
| 240 // According to MSDN: | |
| 241 // http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx | |
| 242 // Key events with Alt modifier and F10 are system key events. | |
| 243 // We just emulate this behavior. It's necessary to prevent webkit from | |
| 244 // processing keypress event generated by alt-d, etc. | |
| 245 // F10 is not special on Linux, so don't treat it as system key. | |
| 246 if (result.modifiers & WebInputEvent::AltKey) | |
| 247 result.isSystemKey = true; | |
| 248 | |
| 249 // The key code tells us which physical key was pressed (for example, the | |
| 250 // A key went down or up). It does not determine whether A should be lower | |
| 251 // or upper case. This is what text does, which should be the keyval. | |
| 252 result.windowsKeyCode = gdkEventToWindowsKeyCode(event); | |
| 253 result.nativeKeyCode = event->hardware_keycode; | |
| 254 | |
| 255 if (result.windowsKeyCode == WebCore::VKEY_RETURN) | |
| 256 // We need to treat the enter key as a key press of character \r. This | |
| 257 // is apparently just how webkit handles it and what it expects. | |
| 258 result.unmodifiedText[0] = '\r'; | |
| 259 else | |
| 260 // FIXME: fix for non BMP chars | |
| 261 result.unmodifiedText[0] = | |
| 262 static_cast<WebUChar>(gdk_keyval_to_unicode(event->keyval)); | |
| 263 | |
| 264 // If ctrl key is pressed down, then control character shall be input. | |
| 265 if (result.modifiers & WebInputEvent::ControlKey) | |
| 266 result.text[0] = getControlCharacter( | |
| 267 result.windowsKeyCode, result.modifiers & WebInputEvent::ShiftKey); | |
| 268 else | |
| 269 result.text[0] = result.unmodifiedText[0]; | |
| 270 | |
| 271 result.setKeyIdentifierFromWindowsKeyCode(); | |
| 272 | |
| 273 // FIXME: Do we need to set IsAutoRepeat or IsKeyPad? | |
| 274 | |
| 275 return result; | |
| 276 } | |
| 277 | |
| 278 WebKeyboardEvent WebInputEventFactory::keyboardEvent(wchar_t character, int state, double timeStampSeconds) | |
| 279 { | |
| 280 // keyboardEvent(const GdkEventKey*) depends on the GdkEventKey object and | |
| 281 // it is hard to use/ it from signal handlers which don't use GdkEventKey | |
| 282 // objects (e.g. GtkIMContext signal handlers.) For such handlers, this | |
| 283 // function creates a WebInputEvent::Char event without using a | |
| 284 // GdkEventKey object. | |
| 285 WebKeyboardEvent result; | |
| 286 result.type = WebKit::WebInputEvent::Char; | |
| 287 result.timeStampSeconds = timeStampSeconds; | |
| 288 result.modifiers = gdkStateToWebEventModifiers(state); | |
| 289 result.windowsKeyCode = character; | |
| 290 result.nativeKeyCode = character; | |
| 291 result.text[0] = character; | |
| 292 result.unmodifiedText[0] = character; | |
| 293 | |
| 294 // According to MSDN: | |
| 295 // http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx | |
| 296 // Key events with Alt modifier and F10 are system key events. | |
| 297 // We just emulate this behavior. It's necessary to prevent webkit from | |
| 298 // processing keypress event generated by alt-d, etc. | |
| 299 // F10 is not special on Linux, so don't treat it as system key. | |
| 300 if (result.modifiers & WebInputEvent::AltKey) | |
| 301 result.isSystemKey = true; | |
| 302 | |
| 303 return result; | |
| 304 } | |
| 305 | |
| 306 // WebMouseEvent -------------------------------------------------------------- | |
| 307 | |
| 308 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventButton* event) | |
| 309 { | |
| 310 WebMouseEvent result; | |
| 311 | |
| 312 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 313 | |
| 314 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 315 result.x = static_cast<int>(event->x); | |
| 316 result.y = static_cast<int>(event->y); | |
| 317 result.windowX = result.x; | |
| 318 result.windowY = result.y; | |
| 319 result.globalX = static_cast<int>(event->x_root); | |
| 320 result.globalY = static_cast<int>(event->y_root); | |
| 321 result.clickCount = 0; | |
| 322 | |
| 323 switch (event->type) { | |
| 324 case GDK_3BUTTON_PRESS: | |
| 325 ++result.clickCount; | |
| 326 // fallthrough | |
| 327 case GDK_2BUTTON_PRESS: | |
| 328 ++result.clickCount; | |
| 329 // fallthrough | |
| 330 case GDK_BUTTON_PRESS: | |
| 331 result.type = WebInputEvent::MouseDown; | |
| 332 ++result.clickCount; | |
| 333 break; | |
| 334 case GDK_BUTTON_RELEASE: | |
| 335 result.type = WebInputEvent::MouseUp; | |
| 336 break; | |
| 337 | |
| 338 default: | |
| 339 ASSERT_NOT_REACHED(); | |
| 340 }; | |
| 341 | |
| 342 result.button = WebMouseEvent::ButtonNone; | |
| 343 if (event->button == 1) | |
| 344 result.button = WebMouseEvent::ButtonLeft; | |
| 345 else if (event->button == 2) | |
| 346 result.button = WebMouseEvent::ButtonMiddle; | |
| 347 else if (event->button == 3) | |
| 348 result.button = WebMouseEvent::ButtonRight; | |
| 349 | |
| 350 return result; | |
| 351 } | |
| 352 | |
| 353 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventMotion* event) | |
| 354 { | |
| 355 WebMouseEvent result; | |
| 356 | |
| 357 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 358 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 359 result.x = static_cast<int>(event->x); | |
| 360 result.y = static_cast<int>(event->y); | |
| 361 result.windowX = result.x; | |
| 362 result.windowY = result.y; | |
| 363 result.globalX = static_cast<int>(event->x_root); | |
| 364 result.globalY = static_cast<int>(event->y_root); | |
| 365 | |
| 366 switch (event->type) { | |
| 367 case GDK_MOTION_NOTIFY: | |
| 368 result.type = WebInputEvent::MouseMove; | |
| 369 break; | |
| 370 default: | |
| 371 ASSERT_NOT_REACHED(); | |
| 372 } | |
| 373 | |
| 374 result.button = WebMouseEvent::ButtonNone; | |
| 375 if (event->state & GDK_BUTTON1_MASK) | |
| 376 result.button = WebMouseEvent::ButtonLeft; | |
| 377 else if (event->state & GDK_BUTTON2_MASK) | |
| 378 result.button = WebMouseEvent::ButtonMiddle; | |
| 379 else if (event->state & GDK_BUTTON3_MASK) | |
| 380 result.button = WebMouseEvent::ButtonRight; | |
| 381 | |
| 382 return result; | |
| 383 } | |
| 384 | |
| 385 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventCrossing* event) | |
| 386 { | |
| 387 WebMouseEvent result; | |
| 388 | |
| 389 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 390 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 391 result.x = static_cast<int>(event->x); | |
| 392 result.y = static_cast<int>(event->y); | |
| 393 result.windowX = result.x; | |
| 394 result.windowY = result.y; | |
| 395 result.globalX = static_cast<int>(event->x_root); | |
| 396 result.globalY = static_cast<int>(event->y_root); | |
| 397 | |
| 398 switch (event->type) { | |
| 399 case GDK_ENTER_NOTIFY: | |
| 400 case GDK_LEAVE_NOTIFY: | |
| 401 // Note that if we sent MouseEnter or MouseLeave to WebKit, it | |
| 402 // wouldn't work - they don't result in the proper JavaScript events. | |
| 403 // MouseMove does the right thing. | |
| 404 result.type = WebInputEvent::MouseMove; | |
| 405 break; | |
| 406 default: | |
| 407 ASSERT_NOT_REACHED(); | |
| 408 } | |
| 409 | |
| 410 result.button = WebMouseEvent::ButtonNone; | |
| 411 if (event->state & GDK_BUTTON1_MASK) | |
| 412 result.button = WebMouseEvent::ButtonLeft; | |
| 413 else if (event->state & GDK_BUTTON2_MASK) | |
| 414 result.button = WebMouseEvent::ButtonMiddle; | |
| 415 else if (event->state & GDK_BUTTON3_MASK) | |
| 416 result.button = WebMouseEvent::ButtonRight; | |
| 417 | |
| 418 return result; | |
| 419 } | |
| 420 | |
| 421 // WebMouseWheelEvent --------------------------------------------------------- | |
| 422 | |
| 423 WebMouseWheelEvent WebInputEventFactory::mouseWheelEvent(const GdkEventScroll* event) | |
| 424 { | |
| 425 WebMouseWheelEvent result; | |
| 426 | |
| 427 result.type = WebInputEvent::MouseWheel; | |
| 428 result.button = WebMouseEvent::ButtonNone; | |
| 429 | |
| 430 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 431 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 432 result.x = static_cast<int>(event->x); | |
| 433 result.y = static_cast<int>(event->y); | |
| 434 result.windowX = result.x; | |
| 435 result.windowY = result.y; | |
| 436 result.globalX = static_cast<int>(event->x_root); | |
| 437 result.globalY = static_cast<int>(event->y_root); | |
| 438 | |
| 439 // How much should we scroll per mouse wheel event? | |
| 440 // - Windows uses 3 lines by default and obeys a system setting. | |
| 441 // - Mozilla has a pref that lets you either use the "system" number of lines | |
| 442 // to scroll, or lets the user override it. | |
| 443 // For the "system" number of lines, it appears they've hardcoded 3. | |
| 444 // See case NS_MOUSE_SCROLL in content/events/src/nsEventStateManager.cpp | |
| 445 // and InitMouseScrollEvent in widget/src/gtk2/nsCommonWidget.cpp . | |
| 446 // - Gtk makes the scroll amount a function of the size of the scroll bar, | |
| 447 // which is not available to us here. | |
| 448 // Instead, we pick a number that empirically matches Firefox's behavior. | |
| 449 static const float scrollbarPixelsPerTick = 160.0f / 3.0f; | |
| 450 | |
| 451 switch (event->direction) { | |
| 452 case GDK_SCROLL_UP: | |
| 453 result.deltaY = scrollbarPixelsPerTick; | |
| 454 result.wheelTicksY = 1; | |
| 455 break; | |
| 456 case GDK_SCROLL_DOWN: | |
| 457 result.deltaY = -scrollbarPixelsPerTick; | |
| 458 result.wheelTicksY = -1; | |
| 459 break; | |
| 460 case GDK_SCROLL_LEFT: | |
| 461 result.deltaX = scrollbarPixelsPerTick; | |
| 462 result.wheelTicksX = -1; // Match Windows positive/negative orientation | |
| 463 break; | |
| 464 case GDK_SCROLL_RIGHT: | |
| 465 result.deltaX = -scrollbarPixelsPerTick; | |
| 466 result.wheelTicksX = 1; | |
| 467 break; | |
| 468 } | |
| 469 | |
| 470 return result; | |
| 471 } | |
| 472 | |
| 473 } // namespace WebKit | |
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Chromium Code Reviews
Issue 385057:
Deleted webkit/api which now lives in webkit.org (Closed)
