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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 "core/platform/chromium/KeyCodeConversion.h" | |
| 35 #include "core/platform/chromium/KeyboardCodes.h" | |
| 36 | |
| 37 #include "WebInputEvent.h" | |
| 38 | |
| 39 #include <gdk/gdk.h> | |
| 40 #include <gdk/gdkkeysyms.h> | |
| 41 #include <gtk/gtk.h> | |
| 42 | |
| 43 #include "wtf/Assertions.h" | |
| 44 | |
| 45 namespace { | |
| 46 | |
| 47 // For click count tracking. | |
| 48 static int gNumClicks = 0; | |
| 49 static GdkWindow* gLastClickEventWindow = 0; | |
| 50 static gint gLastClickTime = 0; | |
| 51 static gint gLastClickX = 0; | |
| 52 static gint gLastClickY = 0; | |
| 53 static WebKit::WebMouseEvent::Button gLastClickButton = WebKit::WebMouseEvent::B
uttonNone; | |
| 54 | |
| 55 bool shouldForgetPreviousClick(GdkWindow* window, gint time, gint x, gint y) | |
| 56 { | |
| 57 static GtkSettings* settings = gtk_settings_get_default(); | |
| 58 | |
| 59 if (window != gLastClickEventWindow) | |
| 60 return true; | |
| 61 | |
| 62 gint doubleClickTime = 250; | |
| 63 gint doubleClickDistance = 5; | |
| 64 g_object_get(G_OBJECT(settings), | |
| 65 "gtk-double-click-time", &doubleClickTime, | |
| 66 "gtk-double-click-distance", &doubleClickDistance, NULL); | |
| 67 return (time - gLastClickTime) > doubleClickTime | |
| 68 || abs(x - gLastClickX) > doubleClickDistance | |
| 69 || abs(y - gLastClickY) > doubleClickDistance; | |
| 70 } | |
| 71 | |
| 72 void resetClickCountState() | |
| 73 { | |
| 74 gNumClicks = 0; | |
| 75 gLastClickEventWindow = 0; | |
| 76 gLastClickTime = 0; | |
| 77 gLastClickX = 0; | |
| 78 gLastClickY = 0; | |
| 79 gLastClickButton = WebKit::WebMouseEvent::ButtonNone; | |
| 80 } | |
| 81 | |
| 82 bool isKeyPadKeyval(guint keyval) | |
| 83 { | |
| 84 // Keypad keyvals all fall into one range. | |
| 85 return keyval >= GDK_KP_Space && keyval <= GDK_KP_9; | |
| 86 } | |
| 87 | |
| 88 } // namespace | |
| 89 | |
| 90 namespace WebKit { | |
| 91 | |
| 92 static double gdkEventTimeToWebEventTime(guint32 time) | |
| 93 { | |
| 94 // Convert from time in ms to time in sec. | |
| 95 return time / 1000.0; | |
| 96 } | |
| 97 | |
| 98 static int gdkStateToWebEventModifiers(guint state) | |
| 99 { | |
| 100 int modifiers = 0; | |
| 101 if (state & GDK_SHIFT_MASK) | |
| 102 modifiers |= WebInputEvent::ShiftKey; | |
| 103 if (state & GDK_CONTROL_MASK) | |
| 104 modifiers |= WebInputEvent::ControlKey; | |
| 105 if (state & GDK_MOD1_MASK) | |
| 106 modifiers |= WebInputEvent::AltKey; | |
| 107 if (state & GDK_META_MASK) | |
| 108 modifiers |= WebInputEvent::MetaKey; | |
| 109 if (state & GDK_BUTTON1_MASK) | |
| 110 modifiers |= WebInputEvent::LeftButtonDown; | |
| 111 if (state & GDK_BUTTON2_MASK) | |
| 112 modifiers |= WebInputEvent::MiddleButtonDown; | |
| 113 if (state & GDK_BUTTON3_MASK) | |
| 114 modifiers |= WebInputEvent::RightButtonDown; | |
| 115 if (state & GDK_LOCK_MASK) | |
| 116 modifiers |= WebInputEvent::CapsLockOn; | |
| 117 if (state & GDK_MOD2_MASK) | |
| 118 modifiers |= WebInputEvent::NumLockOn; | |
| 119 return modifiers; | |
| 120 } | |
| 121 | |
| 122 static int gdkEventToWindowsKeyCode(const GdkEventKey* event) | |
| 123 { | |
| 124 static const unsigned int hardwareCodeToGDKKeyval[] = { | |
| 125 0, // 0x00: | |
| 126 0, // 0x01: | |
| 127 0, // 0x02: | |
| 128 0, // 0x03: | |
| 129 0, // 0x04: | |
| 130 0, // 0x05: | |
| 131 0, // 0x06: | |
| 132 0, // 0x07: | |
| 133 0, // 0x08: | |
| 134 0, // 0x09: GDK_Escape | |
| 135 GDK_1, // 0x0A: GDK_1 | |
| 136 GDK_2, // 0x0B: GDK_2 | |
| 137 GDK_3, // 0x0C: GDK_3 | |
| 138 GDK_4, // 0x0D: GDK_4 | |
| 139 GDK_5, // 0x0E: GDK_5 | |
| 140 GDK_6, // 0x0F: GDK_6 | |
| 141 GDK_7, // 0x10: GDK_7 | |
| 142 GDK_8, // 0x11: GDK_8 | |
| 143 GDK_9, // 0x12: GDK_9 | |
| 144 GDK_0, // 0x13: GDK_0 | |
| 145 GDK_minus, // 0x14: GDK_minus | |
| 146 GDK_equal, // 0x15: GDK_equal | |
| 147 0, // 0x16: GDK_BackSpace | |
| 148 0, // 0x17: GDK_Tab | |
| 149 GDK_q, // 0x18: GDK_q | |
| 150 GDK_w, // 0x19: GDK_w | |
| 151 GDK_e, // 0x1A: GDK_e | |
| 152 GDK_r, // 0x1B: GDK_r | |
| 153 GDK_t, // 0x1C: GDK_t | |
| 154 GDK_y, // 0x1D: GDK_y | |
| 155 GDK_u, // 0x1E: GDK_u | |
| 156 GDK_i, // 0x1F: GDK_i | |
| 157 GDK_o, // 0x20: GDK_o | |
| 158 GDK_p, // 0x21: GDK_p | |
| 159 GDK_bracketleft, // 0x22: GDK_bracketleft | |
| 160 GDK_bracketright, // 0x23: GDK_bracketright | |
| 161 0, // 0x24: GDK_Return | |
| 162 0, // 0x25: GDK_Control_L | |
| 163 GDK_a, // 0x26: GDK_a | |
| 164 GDK_s, // 0x27: GDK_s | |
| 165 GDK_d, // 0x28: GDK_d | |
| 166 GDK_f, // 0x29: GDK_f | |
| 167 GDK_g, // 0x2A: GDK_g | |
| 168 GDK_h, // 0x2B: GDK_h | |
| 169 GDK_j, // 0x2C: GDK_j | |
| 170 GDK_k, // 0x2D: GDK_k | |
| 171 GDK_l, // 0x2E: GDK_l | |
| 172 GDK_semicolon, // 0x2F: GDK_semicolon | |
| 173 GDK_apostrophe, // 0x30: GDK_apostrophe | |
| 174 GDK_grave, // 0x31: GDK_grave | |
| 175 0, // 0x32: GDK_Shift_L | |
| 176 GDK_backslash, // 0x33: GDK_backslash | |
| 177 GDK_z, // 0x34: GDK_z | |
| 178 GDK_x, // 0x35: GDK_x | |
| 179 GDK_c, // 0x36: GDK_c | |
| 180 GDK_v, // 0x37: GDK_v | |
| 181 GDK_b, // 0x38: GDK_b | |
| 182 GDK_n, // 0x39: GDK_n | |
| 183 GDK_m, // 0x3A: GDK_m | |
| 184 GDK_comma, // 0x3B: GDK_comma | |
| 185 GDK_period, // 0x3C: GDK_period | |
| 186 GDK_slash, // 0x3D: GDK_slash | |
| 187 0, // 0x3E: GDK_Shift_R | |
| 188 0, // 0x3F: | |
| 189 0, // 0x40: | |
| 190 0, // 0x41: | |
| 191 0, // 0x42: | |
| 192 0, // 0x43: | |
| 193 0, // 0x44: | |
| 194 0, // 0x45: | |
| 195 0, // 0x46: | |
| 196 0, // 0x47: | |
| 197 0, // 0x48: | |
| 198 0, // 0x49: | |
| 199 0, // 0x4A: | |
| 200 0, // 0x4B: | |
| 201 0, // 0x4C: | |
| 202 0, // 0x4D: | |
| 203 0, // 0x4E: | |
| 204 0, // 0x4F: | |
| 205 0, // 0x50: | |
| 206 0, // 0x51: | |
| 207 0, // 0x52: | |
| 208 0, // 0x53: | |
| 209 0, // 0x54: | |
| 210 0, // 0x55: | |
| 211 0, // 0x56: | |
| 212 0, // 0x57: | |
| 213 0, // 0x58: | |
| 214 0, // 0x59: | |
| 215 0, // 0x5A: | |
| 216 0, // 0x5B: | |
| 217 0, // 0x5C: | |
| 218 0, // 0x5D: | |
| 219 0, // 0x5E: | |
| 220 0, // 0x5F: | |
| 221 0, // 0x60: | |
| 222 0, // 0x61: | |
| 223 0, // 0x62: | |
| 224 0, // 0x63: | |
| 225 0, // 0x64: | |
| 226 0, // 0x65: | |
| 227 0, // 0x66: | |
| 228 0, // 0x67: | |
| 229 0, // 0x68: | |
| 230 0, // 0x69: | |
| 231 0, // 0x6A: | |
| 232 0, // 0x6B: | |
| 233 0, // 0x6C: | |
| 234 0, // 0x6D: | |
| 235 0, // 0x6E: | |
| 236 0, // 0x6F: | |
| 237 0, // 0x70: | |
| 238 0, // 0x71: | |
| 239 0, // 0x72: | |
| 240 GDK_Super_L, // 0x73: GDK_Super_L | |
| 241 GDK_Super_R, // 0x74: GDK_Super_R | |
| 242 }; | |
| 243 | |
| 244 // |windowsKeyCode| has to include a valid virtual-key code even when we | |
| 245 // use non-US layouts, e.g. even when we type an 'A' key of a US keyboard | |
| 246 // on the Hebrew layout, |windowsKeyCode| should be VK_A. | |
| 247 // On the other hand, |event->keyval| value depends on the current | |
| 248 // GdkKeymap object, i.e. when we type an 'A' key of a US keyboard on | |
| 249 // the Hebrew layout, |event->keyval| becomes GDK_hebrew_shin and this | |
| 250 // WebCore::windowsKeyCodeForKeyEvent() call returns 0. | |
| 251 // To improve compatibilty with Windows, we use |event->hardware_keycode| | |
| 252 // for retrieving its Windows key-code for the keys when the | |
| 253 // WebCore::windowsKeyCodeForEvent() call returns 0. | |
| 254 // We shouldn't use |event->hardware_keycode| for keys that GdkKeymap | |
| 255 // objects cannot change because |event->hardware_keycode| doesn't change | |
| 256 // even when we change the layout options, e.g. when we swap a control | |
| 257 // key and a caps-lock key, GTK doesn't swap their | |
| 258 // |event->hardware_keycode| values but swap their |event->keyval| values. | |
| 259 int windowsKeyCode = WebCore::windowsKeyCodeForKeyEvent(event->keyval); | |
| 260 if (windowsKeyCode) | |
| 261 return windowsKeyCode; | |
| 262 | |
| 263 const int tableSize = sizeof(hardwareCodeToGDKKeyval) / sizeof(hardwareCodeT
oGDKKeyval[0]); | |
| 264 if (event->hardware_keycode < tableSize) { | |
| 265 int keyval = hardwareCodeToGDKKeyval[event->hardware_keycode]; | |
| 266 if (keyval) | |
| 267 return WebCore::windowsKeyCodeForKeyEvent(keyval); | |
| 268 } | |
| 269 | |
| 270 // This key is one that keyboard-layout drivers cannot change. | |
| 271 // Use |event->keyval| to retrieve its |windowsKeyCode| value. | |
| 272 return WebCore::windowsKeyCodeForKeyEvent(event->keyval); | |
| 273 } | |
| 274 | |
| 275 // Normalizes event->state to make it Windows/Mac compatible. Since the way | |
| 276 // of setting modifier mask on X is very different than Windows/Mac as shown | |
| 277 // in http://crbug.com/127142#c8, the normalization is necessary. | |
| 278 static guint normalizeEventState(const GdkEventKey* event) | |
| 279 { | |
| 280 guint mask = 0; | |
| 281 switch (gdkEventToWindowsKeyCode(event)) { | |
| 282 case WebCore::VKEY_CONTROL: | |
| 283 case WebCore::VKEY_LCONTROL: | |
| 284 case WebCore::VKEY_RCONTROL: | |
| 285 mask = GDK_CONTROL_MASK; | |
| 286 break; | |
| 287 case WebCore::VKEY_SHIFT: | |
| 288 case WebCore::VKEY_LSHIFT: | |
| 289 case WebCore::VKEY_RSHIFT: | |
| 290 mask = GDK_SHIFT_MASK; | |
| 291 break; | |
| 292 case WebCore::VKEY_MENU: | |
| 293 case WebCore::VKEY_LMENU: | |
| 294 case WebCore::VKEY_RMENU: | |
| 295 mask = GDK_MOD1_MASK; | |
| 296 break; | |
| 297 case WebCore::VKEY_CAPITAL: | |
| 298 mask = GDK_LOCK_MASK; | |
| 299 break; | |
| 300 default: | |
| 301 return event->state; | |
| 302 } | |
| 303 if (event->type == GDK_KEY_PRESS) | |
| 304 return event->state | mask; | |
| 305 return event->state & ~mask; | |
| 306 } | |
| 307 | |
| 308 // Gets the corresponding control character of a specified key code. See: | |
| 309 // http://en.wikipedia.org/wiki/Control_characters | |
| 310 // We emulate Windows behavior here. | |
| 311 static WebUChar getControlCharacter(int windowsKeyCode, bool shift) | |
| 312 { | |
| 313 if (windowsKeyCode >= WebCore::VKEY_A && windowsKeyCode <= WebCore::VKEY_Z)
{ | |
| 314 // ctrl-A ~ ctrl-Z map to \x01 ~ \x1A | |
| 315 return windowsKeyCode - WebCore::VKEY_A + 1; | |
| 316 } | |
| 317 if (shift) { | |
| 318 // following graphics chars require shift key to input. | |
| 319 switch (windowsKeyCode) { | |
| 320 // ctrl-@ maps to \x00 (Null byte) | |
| 321 case WebCore::VKEY_2: | |
| 322 return 0; | |
| 323 // ctrl-^ maps to \x1E (Record separator, Information separator two) | |
| 324 case WebCore::VKEY_6: | |
| 325 return 0x1E; | |
| 326 // ctrl-_ maps to \x1F (Unit separator, Information separator one) | |
| 327 case WebCore::VKEY_OEM_MINUS: | |
| 328 return 0x1F; | |
| 329 // Returns 0 for all other keys to avoid inputting unexpected chars. | |
| 330 default: | |
| 331 return 0; | |
| 332 } | |
| 333 } else { | |
| 334 switch (windowsKeyCode) { | |
| 335 // ctrl-[ maps to \x1B (Escape) | |
| 336 case WebCore::VKEY_OEM_4: | |
| 337 return 0x1B; | |
| 338 // ctrl-\ maps to \x1C (File separator, Information separator four) | |
| 339 case WebCore::VKEY_OEM_5: | |
| 340 return 0x1C; | |
| 341 // ctrl-] maps to \x1D (Group separator, Information separator three) | |
| 342 case WebCore::VKEY_OEM_6: | |
| 343 return 0x1D; | |
| 344 // ctrl-Enter maps to \x0A (Line feed) | |
| 345 case WebCore::VKEY_RETURN: | |
| 346 return 0x0A; | |
| 347 // Returns 0 for all other keys to avoid inputting unexpected chars. | |
| 348 default: | |
| 349 return 0; | |
| 350 } | |
| 351 } | |
| 352 } | |
| 353 | |
| 354 // WebKeyboardEvent ----------------------------------------------------------- | |
| 355 | |
| 356 WebKeyboardEvent WebInputEventFactory::keyboardEvent(const GdkEventKey* event) | |
| 357 { | |
| 358 WebKeyboardEvent result; | |
| 359 | |
| 360 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 361 result.modifiers = gdkStateToWebEventModifiers(normalizeEventState(event)); | |
| 362 | |
| 363 switch (event->type) { | |
| 364 case GDK_KEY_RELEASE: | |
| 365 result.type = WebInputEvent::KeyUp; | |
| 366 break; | |
| 367 case GDK_KEY_PRESS: | |
| 368 result.type = WebInputEvent::RawKeyDown; | |
| 369 break; | |
| 370 default: | |
| 371 ASSERT_NOT_REACHED(); | |
| 372 } | |
| 373 | |
| 374 // According to MSDN: | |
| 375 // http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx | |
| 376 // Key events with Alt modifier and F10 are system key events. | |
| 377 // We just emulate this behavior. It's necessary to prevent webkit from | |
| 378 // processing keypress event generated by alt-d, etc. | |
| 379 // F10 is not special on Linux, so don't treat it as system key. | |
| 380 if (result.modifiers & WebInputEvent::AltKey) | |
| 381 result.isSystemKey = true; | |
| 382 | |
| 383 // The key code tells us which physical key was pressed (for example, the | |
| 384 // A key went down or up). It does not determine whether A should be lower | |
| 385 // or upper case. This is what text does, which should be the keyval. | |
| 386 int windowsKeyCode = gdkEventToWindowsKeyCode(event); | |
| 387 result.windowsKeyCode = WebKeyboardEvent::windowsKeyCodeWithoutLocation(wind
owsKeyCode); | |
| 388 result.modifiers |= WebKeyboardEvent::locationModifiersFromWindowsKeyCode(wi
ndowsKeyCode); | |
| 389 result.nativeKeyCode = event->hardware_keycode; | |
| 390 | |
| 391 if (result.windowsKeyCode == WebCore::VKEY_RETURN) | |
| 392 // We need to treat the enter key as a key press of character \r. This | |
| 393 // is apparently just how webkit handles it and what it expects. | |
| 394 result.unmodifiedText[0] = '\r'; | |
| 395 else | |
| 396 // FIXME: fix for non BMP chars | |
| 397 result.unmodifiedText[0] = | |
| 398 static_cast<WebUChar>(gdk_keyval_to_unicode(event->keyval)); | |
| 399 | |
| 400 // If ctrl key is pressed down, then control character shall be input. | |
| 401 if (result.modifiers & WebInputEvent::ControlKey) | |
| 402 result.text[0] = getControlCharacter( | |
| 403 result.windowsKeyCode, result.modifiers & WebInputEvent::ShiftKey); | |
| 404 else | |
| 405 result.text[0] = result.unmodifiedText[0]; | |
| 406 | |
| 407 result.setKeyIdentifierFromWindowsKeyCode(); | |
| 408 | |
| 409 // FIXME: Do we need to set IsAutoRepeat? | |
| 410 if (isKeyPadKeyval(event->keyval)) | |
| 411 result.modifiers |= WebInputEvent::IsKeyPad; | |
| 412 | |
| 413 return result; | |
| 414 } | |
| 415 | |
| 416 WebKeyboardEvent WebInputEventFactory::keyboardEvent(wchar_t character, int stat
e, double timeStampSeconds) | |
| 417 { | |
| 418 // keyboardEvent(const GdkEventKey*) depends on the GdkEventKey object and | |
| 419 // it is hard to use/ it from signal handlers which don't use GdkEventKey | |
| 420 // objects (e.g. GtkIMContext signal handlers.) For such handlers, this | |
| 421 // function creates a WebInputEvent::Char event without using a | |
| 422 // GdkEventKey object. | |
| 423 WebKeyboardEvent result; | |
| 424 result.type = WebKit::WebInputEvent::Char; | |
| 425 result.timeStampSeconds = timeStampSeconds; | |
| 426 result.modifiers = gdkStateToWebEventModifiers(state); | |
| 427 result.windowsKeyCode = character; | |
| 428 result.nativeKeyCode = character; | |
| 429 result.text[0] = character; | |
| 430 result.unmodifiedText[0] = character; | |
| 431 | |
| 432 // According to MSDN: | |
| 433 // http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx | |
| 434 // Key events with Alt modifier and F10 are system key events. | |
| 435 // We just emulate this behavior. It's necessary to prevent webkit from | |
| 436 // processing keypress event generated by alt-d, etc. | |
| 437 // F10 is not special on Linux, so don't treat it as system key. | |
| 438 if (result.modifiers & WebInputEvent::AltKey) | |
| 439 result.isSystemKey = true; | |
| 440 | |
| 441 return result; | |
| 442 } | |
| 443 | |
| 444 // WebMouseEvent -------------------------------------------------------------- | |
| 445 | |
| 446 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventButton* event) | |
| 447 { | |
| 448 WebMouseEvent result; | |
| 449 | |
| 450 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 451 | |
| 452 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 453 result.x = static_cast<int>(event->x); | |
| 454 result.y = static_cast<int>(event->y); | |
| 455 result.windowX = result.x; | |
| 456 result.windowY = result.y; | |
| 457 result.globalX = static_cast<int>(event->x_root); | |
| 458 result.globalY = static_cast<int>(event->y_root); | |
| 459 result.clickCount = 0; | |
| 460 | |
| 461 switch (event->type) { | |
| 462 case GDK_BUTTON_PRESS: | |
| 463 result.type = WebInputEvent::MouseDown; | |
| 464 break; | |
| 465 case GDK_BUTTON_RELEASE: | |
| 466 result.type = WebInputEvent::MouseUp; | |
| 467 break; | |
| 468 case GDK_3BUTTON_PRESS: | |
| 469 case GDK_2BUTTON_PRESS: | |
| 470 default: | |
| 471 ASSERT_NOT_REACHED(); | |
| 472 }; | |
| 473 | |
| 474 result.button = WebMouseEvent::ButtonNone; | |
| 475 if (event->button == 1) | |
| 476 result.button = WebMouseEvent::ButtonLeft; | |
| 477 else if (event->button == 2) | |
| 478 result.button = WebMouseEvent::ButtonMiddle; | |
| 479 else if (event->button == 3) | |
| 480 result.button = WebMouseEvent::ButtonRight; | |
| 481 | |
| 482 if (result.type == WebInputEvent::MouseDown) { | |
| 483 bool forgetPreviousClick = shouldForgetPreviousClick(event->window, even
t->time, event->x, event->y); | |
| 484 | |
| 485 if (!forgetPreviousClick && result.button == gLastClickButton) | |
| 486 ++gNumClicks; | |
| 487 else { | |
| 488 gNumClicks = 1; | |
| 489 | |
| 490 gLastClickEventWindow = event->window; | |
| 491 gLastClickX = event->x; | |
| 492 gLastClickY = event->y; | |
| 493 gLastClickButton = result.button; | |
| 494 } | |
| 495 gLastClickTime = event->time; | |
| 496 } | |
| 497 result.clickCount = gNumClicks; | |
| 498 | |
| 499 return result; | |
| 500 } | |
| 501 | |
| 502 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventMotion* event) | |
| 503 { | |
| 504 WebMouseEvent result; | |
| 505 | |
| 506 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 507 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 508 result.x = static_cast<int>(event->x); | |
| 509 result.y = static_cast<int>(event->y); | |
| 510 result.windowX = result.x; | |
| 511 result.windowY = result.y; | |
| 512 result.globalX = static_cast<int>(event->x_root); | |
| 513 result.globalY = static_cast<int>(event->y_root); | |
| 514 | |
| 515 switch (event->type) { | |
| 516 case GDK_MOTION_NOTIFY: | |
| 517 result.type = WebInputEvent::MouseMove; | |
| 518 break; | |
| 519 default: | |
| 520 ASSERT_NOT_REACHED(); | |
| 521 } | |
| 522 | |
| 523 result.button = WebMouseEvent::ButtonNone; | |
| 524 if (event->state & GDK_BUTTON1_MASK) | |
| 525 result.button = WebMouseEvent::ButtonLeft; | |
| 526 else if (event->state & GDK_BUTTON2_MASK) | |
| 527 result.button = WebMouseEvent::ButtonMiddle; | |
| 528 else if (event->state & GDK_BUTTON3_MASK) | |
| 529 result.button = WebMouseEvent::ButtonRight; | |
| 530 | |
| 531 if (shouldForgetPreviousClick(event->window, event->time, event->x, event->y
)) | |
| 532 resetClickCountState(); | |
| 533 | |
| 534 return result; | |
| 535 } | |
| 536 | |
| 537 WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventCrossing* event) | |
| 538 { | |
| 539 WebMouseEvent result; | |
| 540 | |
| 541 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 542 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 543 result.x = static_cast<int>(event->x); | |
| 544 result.y = static_cast<int>(event->y); | |
| 545 result.windowX = result.x; | |
| 546 result.windowY = result.y; | |
| 547 result.globalX = static_cast<int>(event->x_root); | |
| 548 result.globalY = static_cast<int>(event->y_root); | |
| 549 | |
| 550 switch (event->type) { | |
| 551 case GDK_ENTER_NOTIFY: | |
| 552 case GDK_LEAVE_NOTIFY: | |
| 553 // Note that if we sent MouseEnter or MouseLeave to WebKit, it | |
| 554 // wouldn't work - they don't result in the proper JavaScript events. | |
| 555 // MouseMove does the right thing. | |
| 556 result.type = WebInputEvent::MouseMove; | |
| 557 break; | |
| 558 default: | |
| 559 ASSERT_NOT_REACHED(); | |
| 560 } | |
| 561 | |
| 562 result.button = WebMouseEvent::ButtonNone; | |
| 563 if (event->state & GDK_BUTTON1_MASK) | |
| 564 result.button = WebMouseEvent::ButtonLeft; | |
| 565 else if (event->state & GDK_BUTTON2_MASK) | |
| 566 result.button = WebMouseEvent::ButtonMiddle; | |
| 567 else if (event->state & GDK_BUTTON3_MASK) | |
| 568 result.button = WebMouseEvent::ButtonRight; | |
| 569 | |
| 570 if (shouldForgetPreviousClick(event->window, event->time, event->x, event->y
)) | |
| 571 resetClickCountState(); | |
| 572 | |
| 573 return result; | |
| 574 } | |
| 575 | |
| 576 // WebMouseWheelEvent --------------------------------------------------------- | |
| 577 | |
| 578 WebMouseWheelEvent WebInputEventFactory::mouseWheelEvent(const GdkEventScroll* e
vent) | |
| 579 { | |
| 580 WebMouseWheelEvent result; | |
| 581 | |
| 582 result.type = WebInputEvent::MouseWheel; | |
| 583 result.button = WebMouseEvent::ButtonNone; | |
| 584 | |
| 585 result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); | |
| 586 result.modifiers = gdkStateToWebEventModifiers(event->state); | |
| 587 result.x = static_cast<int>(event->x); | |
| 588 result.y = static_cast<int>(event->y); | |
| 589 result.windowX = result.x; | |
| 590 result.windowY = result.y; | |
| 591 result.globalX = static_cast<int>(event->x_root); | |
| 592 result.globalY = static_cast<int>(event->y_root); | |
| 593 | |
| 594 // How much should we scroll per mouse wheel event? | |
| 595 // - Windows uses 3 lines by default and obeys a system setting. | |
| 596 // - Mozilla has a pref that lets you either use the "system" number of line
s | |
| 597 // to scroll, or lets the user override it. | |
| 598 // For the "system" number of lines, it appears they've hardcoded 3. | |
| 599 // See case NS_MOUSE_SCROLL in content/events/src/nsEventStateManager.cpp | |
| 600 // and InitMouseScrollEvent in widget/src/gtk2/nsCommonWidget.cpp . | |
| 601 // - Gtk makes the scroll amount a function of the size of the scroll bar, | |
| 602 // which is not available to us here. | |
| 603 // Instead, we pick a number that empirically matches Firefox's behavior. | |
| 604 static const float scrollbarPixelsPerTick = 160.0f / 3.0f; | |
| 605 | |
| 606 switch (event->direction) { | |
| 607 case GDK_SCROLL_UP: | |
| 608 result.deltaY = scrollbarPixelsPerTick; | |
| 609 result.wheelTicksY = 1; | |
| 610 break; | |
| 611 case GDK_SCROLL_DOWN: | |
| 612 result.deltaY = -scrollbarPixelsPerTick; | |
| 613 result.wheelTicksY = -1; | |
| 614 break; | |
| 615 case GDK_SCROLL_LEFT: | |
| 616 result.deltaX = scrollbarPixelsPerTick; | |
| 617 result.wheelTicksX = 1; | |
| 618 break; | |
| 619 case GDK_SCROLL_RIGHT: | |
| 620 result.deltaX = -scrollbarPixelsPerTick; | |
| 621 result.wheelTicksX = -1; | |
| 622 break; | |
| 623 } | |
| 624 | |
| 625 return result; | |
| 626 } | |
| 627 | |
| 628 } // namespace WebKit | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 27462002:
Remove web/{android, gtk, win} (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master