Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 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 | |
Torne (Richard Coles) | 0938029 | 2014-02-21 12:17:33 +0000 | [diff] [blame] | 34 | #include "platform/KeyCodeConversion.h" |
| 35 | #include "platform/KeyboardCodes.h" |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 36 | |
| 37 | #include "WebInputEvent.h" |
| 38 | |
| 39 | #include <gdk/gdk.h> |
| 40 | #include <gdk/gdkkeysyms.h> |
| 41 | #include <gtk/gtk.h> |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 42 | #include <stdlib.h> |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 43 | |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 44 | #include "wtf/Assertions.h" |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 45 | |
| 46 | namespace { |
| 47 | |
| 48 | // For click count tracking. |
| 49 | static int gNumClicks = 0; |
| 50 | static GdkWindow* gLastClickEventWindow = 0; |
| 51 | static gint gLastClickTime = 0; |
| 52 | static gint gLastClickX = 0; |
| 53 | static gint gLastClickY = 0; |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 54 | static blink::WebMouseEvent::Button gLastClickButton = blink::WebMouseEvent::ButtonNone; |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 55 | |
| 56 | bool shouldForgetPreviousClick(GdkWindow* window, gint time, gint x, gint y) |
| 57 | { |
| 58 | static GtkSettings* settings = gtk_settings_get_default(); |
| 59 | |
| 60 | if (window != gLastClickEventWindow) |
| 61 | return true; |
| 62 | |
| 63 | gint doubleClickTime = 250; |
| 64 | gint doubleClickDistance = 5; |
| 65 | g_object_get(G_OBJECT(settings), |
| 66 | "gtk-double-click-time", &doubleClickTime, |
| 67 | "gtk-double-click-distance", &doubleClickDistance, NULL); |
| 68 | return (time - gLastClickTime) > doubleClickTime |
| 69 | || abs(x - gLastClickX) > doubleClickDistance |
| 70 | || abs(y - gLastClickY) > doubleClickDistance; |
| 71 | } |
| 72 | |
| 73 | void resetClickCountState() |
| 74 | { |
| 75 | gNumClicks = 0; |
| 76 | gLastClickEventWindow = 0; |
| 77 | gLastClickTime = 0; |
| 78 | gLastClickX = 0; |
| 79 | gLastClickY = 0; |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 80 | gLastClickButton = blink::WebMouseEvent::ButtonNone; |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | bool isKeyPadKeyval(guint keyval) |
| 84 | { |
| 85 | // Keypad keyvals all fall into one range. |
| 86 | return keyval >= GDK_KP_Space && keyval <= GDK_KP_9; |
| 87 | } |
| 88 | |
| 89 | } // namespace |
| 90 | |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 91 | namespace blink { |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 92 | |
| 93 | static double gdkEventTimeToWebEventTime(guint32 time) |
| 94 | { |
| 95 | // Convert from time in ms to time in sec. |
| 96 | return time / 1000.0; |
| 97 | } |
| 98 | |
| 99 | static int gdkStateToWebEventModifiers(guint state) |
| 100 | { |
| 101 | int modifiers = 0; |
| 102 | if (state & GDK_SHIFT_MASK) |
| 103 | modifiers |= WebInputEvent::ShiftKey; |
| 104 | if (state & GDK_CONTROL_MASK) |
| 105 | modifiers |= WebInputEvent::ControlKey; |
| 106 | if (state & GDK_MOD1_MASK) |
| 107 | modifiers |= WebInputEvent::AltKey; |
| 108 | if (state & GDK_META_MASK) |
| 109 | modifiers |= WebInputEvent::MetaKey; |
| 110 | if (state & GDK_BUTTON1_MASK) |
| 111 | modifiers |= WebInputEvent::LeftButtonDown; |
| 112 | if (state & GDK_BUTTON2_MASK) |
| 113 | modifiers |= WebInputEvent::MiddleButtonDown; |
| 114 | if (state & GDK_BUTTON3_MASK) |
| 115 | modifiers |= WebInputEvent::RightButtonDown; |
| 116 | if (state & GDK_LOCK_MASK) |
| 117 | modifiers |= WebInputEvent::CapsLockOn; |
| 118 | if (state & GDK_MOD2_MASK) |
| 119 | modifiers |= WebInputEvent::NumLockOn; |
| 120 | return modifiers; |
| 121 | } |
| 122 | |
| 123 | static int gdkEventToWindowsKeyCode(const GdkEventKey* event) |
| 124 | { |
Ben Murdoch | 07a852d | 2014-03-31 11:51:52 +0100 | [diff] [blame] | 125 | static const unsigned hardwareCodeToGDKKeyval[] = { |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 126 | 0, // 0x00: |
| 127 | 0, // 0x01: |
| 128 | 0, // 0x02: |
| 129 | 0, // 0x03: |
| 130 | 0, // 0x04: |
| 131 | 0, // 0x05: |
| 132 | 0, // 0x06: |
| 133 | 0, // 0x07: |
| 134 | 0, // 0x08: |
| 135 | 0, // 0x09: GDK_Escape |
| 136 | GDK_1, // 0x0A: GDK_1 |
| 137 | GDK_2, // 0x0B: GDK_2 |
| 138 | GDK_3, // 0x0C: GDK_3 |
| 139 | GDK_4, // 0x0D: GDK_4 |
| 140 | GDK_5, // 0x0E: GDK_5 |
| 141 | GDK_6, // 0x0F: GDK_6 |
| 142 | GDK_7, // 0x10: GDK_7 |
| 143 | GDK_8, // 0x11: GDK_8 |
| 144 | GDK_9, // 0x12: GDK_9 |
| 145 | GDK_0, // 0x13: GDK_0 |
| 146 | GDK_minus, // 0x14: GDK_minus |
| 147 | GDK_equal, // 0x15: GDK_equal |
| 148 | 0, // 0x16: GDK_BackSpace |
| 149 | 0, // 0x17: GDK_Tab |
| 150 | GDK_q, // 0x18: GDK_q |
| 151 | GDK_w, // 0x19: GDK_w |
| 152 | GDK_e, // 0x1A: GDK_e |
| 153 | GDK_r, // 0x1B: GDK_r |
| 154 | GDK_t, // 0x1C: GDK_t |
| 155 | GDK_y, // 0x1D: GDK_y |
| 156 | GDK_u, // 0x1E: GDK_u |
| 157 | GDK_i, // 0x1F: GDK_i |
| 158 | GDK_o, // 0x20: GDK_o |
| 159 | GDK_p, // 0x21: GDK_p |
| 160 | GDK_bracketleft, // 0x22: GDK_bracketleft |
| 161 | GDK_bracketright, // 0x23: GDK_bracketright |
| 162 | 0, // 0x24: GDK_Return |
| 163 | 0, // 0x25: GDK_Control_L |
| 164 | GDK_a, // 0x26: GDK_a |
| 165 | GDK_s, // 0x27: GDK_s |
| 166 | GDK_d, // 0x28: GDK_d |
| 167 | GDK_f, // 0x29: GDK_f |
| 168 | GDK_g, // 0x2A: GDK_g |
| 169 | GDK_h, // 0x2B: GDK_h |
| 170 | GDK_j, // 0x2C: GDK_j |
| 171 | GDK_k, // 0x2D: GDK_k |
| 172 | GDK_l, // 0x2E: GDK_l |
| 173 | GDK_semicolon, // 0x2F: GDK_semicolon |
| 174 | GDK_apostrophe, // 0x30: GDK_apostrophe |
| 175 | GDK_grave, // 0x31: GDK_grave |
| 176 | 0, // 0x32: GDK_Shift_L |
| 177 | GDK_backslash, // 0x33: GDK_backslash |
| 178 | GDK_z, // 0x34: GDK_z |
| 179 | GDK_x, // 0x35: GDK_x |
| 180 | GDK_c, // 0x36: GDK_c |
| 181 | GDK_v, // 0x37: GDK_v |
| 182 | GDK_b, // 0x38: GDK_b |
| 183 | GDK_n, // 0x39: GDK_n |
| 184 | GDK_m, // 0x3A: GDK_m |
| 185 | GDK_comma, // 0x3B: GDK_comma |
| 186 | GDK_period, // 0x3C: GDK_period |
| 187 | GDK_slash, // 0x3D: GDK_slash |
| 188 | 0, // 0x3E: GDK_Shift_R |
| 189 | 0, // 0x3F: |
| 190 | 0, // 0x40: |
| 191 | 0, // 0x41: |
| 192 | 0, // 0x42: |
| 193 | 0, // 0x43: |
| 194 | 0, // 0x44: |
| 195 | 0, // 0x45: |
| 196 | 0, // 0x46: |
| 197 | 0, // 0x47: |
| 198 | 0, // 0x48: |
| 199 | 0, // 0x49: |
| 200 | 0, // 0x4A: |
| 201 | 0, // 0x4B: |
| 202 | 0, // 0x4C: |
| 203 | 0, // 0x4D: |
| 204 | 0, // 0x4E: |
| 205 | 0, // 0x4F: |
| 206 | 0, // 0x50: |
| 207 | 0, // 0x51: |
| 208 | 0, // 0x52: |
| 209 | 0, // 0x53: |
| 210 | 0, // 0x54: |
| 211 | 0, // 0x55: |
| 212 | 0, // 0x56: |
| 213 | 0, // 0x57: |
| 214 | 0, // 0x58: |
| 215 | 0, // 0x59: |
| 216 | 0, // 0x5A: |
| 217 | 0, // 0x5B: |
| 218 | 0, // 0x5C: |
| 219 | 0, // 0x5D: |
| 220 | 0, // 0x5E: |
| 221 | 0, // 0x5F: |
| 222 | 0, // 0x60: |
| 223 | 0, // 0x61: |
| 224 | 0, // 0x62: |
| 225 | 0, // 0x63: |
| 226 | 0, // 0x64: |
| 227 | 0, // 0x65: |
| 228 | 0, // 0x66: |
| 229 | 0, // 0x67: |
| 230 | 0, // 0x68: |
| 231 | 0, // 0x69: |
| 232 | 0, // 0x6A: |
| 233 | 0, // 0x6B: |
| 234 | 0, // 0x6C: |
| 235 | 0, // 0x6D: |
| 236 | 0, // 0x6E: |
| 237 | 0, // 0x6F: |
| 238 | 0, // 0x70: |
| 239 | 0, // 0x71: |
| 240 | 0, // 0x72: |
| 241 | GDK_Super_L, // 0x73: GDK_Super_L |
| 242 | GDK_Super_R, // 0x74: GDK_Super_R |
| 243 | }; |
| 244 | |
| 245 | // |windowsKeyCode| has to include a valid virtual-key code even when we |
| 246 | // use non-US layouts, e.g. even when we type an 'A' key of a US keyboard |
| 247 | // on the Hebrew layout, |windowsKeyCode| should be VK_A. |
| 248 | // On the other hand, |event->keyval| value depends on the current |
| 249 | // GdkKeymap object, i.e. when we type an 'A' key of a US keyboard on |
| 250 | // the Hebrew layout, |event->keyval| becomes GDK_hebrew_shin and this |
| 251 | // WebCore::windowsKeyCodeForKeyEvent() call returns 0. |
| 252 | // To improve compatibilty with Windows, we use |event->hardware_keycode| |
| 253 | // for retrieving its Windows key-code for the keys when the |
| 254 | // WebCore::windowsKeyCodeForEvent() call returns 0. |
| 255 | // We shouldn't use |event->hardware_keycode| for keys that GdkKeymap |
| 256 | // objects cannot change because |event->hardware_keycode| doesn't change |
| 257 | // even when we change the layout options, e.g. when we swap a control |
| 258 | // key and a caps-lock key, GTK doesn't swap their |
| 259 | // |event->hardware_keycode| values but swap their |event->keyval| values. |
| 260 | int windowsKeyCode = WebCore::windowsKeyCodeForKeyEvent(event->keyval); |
| 261 | if (windowsKeyCode) |
| 262 | return windowsKeyCode; |
| 263 | |
| 264 | const int tableSize = sizeof(hardwareCodeToGDKKeyval) / sizeof(hardwareCodeToGDKKeyval[0]); |
| 265 | if (event->hardware_keycode < tableSize) { |
| 266 | int keyval = hardwareCodeToGDKKeyval[event->hardware_keycode]; |
| 267 | if (keyval) |
| 268 | return WebCore::windowsKeyCodeForKeyEvent(keyval); |
| 269 | } |
| 270 | |
| 271 | // This key is one that keyboard-layout drivers cannot change. |
| 272 | // Use |event->keyval| to retrieve its |windowsKeyCode| value. |
| 273 | return WebCore::windowsKeyCodeForKeyEvent(event->keyval); |
| 274 | } |
| 275 | |
| 276 | // Normalizes event->state to make it Windows/Mac compatible. Since the way |
| 277 | // of setting modifier mask on X is very different than Windows/Mac as shown |
| 278 | // in http://crbug.com/127142#c8, the normalization is necessary. |
| 279 | static guint normalizeEventState(const GdkEventKey* event) |
| 280 | { |
| 281 | guint mask = 0; |
| 282 | switch (gdkEventToWindowsKeyCode(event)) { |
| 283 | case WebCore::VKEY_CONTROL: |
| 284 | case WebCore::VKEY_LCONTROL: |
| 285 | case WebCore::VKEY_RCONTROL: |
| 286 | mask = GDK_CONTROL_MASK; |
| 287 | break; |
| 288 | case WebCore::VKEY_SHIFT: |
| 289 | case WebCore::VKEY_LSHIFT: |
| 290 | case WebCore::VKEY_RSHIFT: |
| 291 | mask = GDK_SHIFT_MASK; |
| 292 | break; |
| 293 | case WebCore::VKEY_MENU: |
| 294 | case WebCore::VKEY_LMENU: |
| 295 | case WebCore::VKEY_RMENU: |
| 296 | mask = GDK_MOD1_MASK; |
| 297 | break; |
| 298 | case WebCore::VKEY_CAPITAL: |
| 299 | mask = GDK_LOCK_MASK; |
| 300 | break; |
| 301 | default: |
| 302 | return event->state; |
| 303 | } |
| 304 | if (event->type == GDK_KEY_PRESS) |
| 305 | return event->state | mask; |
| 306 | return event->state & ~mask; |
| 307 | } |
| 308 | |
| 309 | // Gets the corresponding control character of a specified key code. See: |
| 310 | // http://en.wikipedia.org/wiki/Control_characters |
| 311 | // We emulate Windows behavior here. |
| 312 | static WebUChar getControlCharacter(int windowsKeyCode, bool shift) |
| 313 | { |
| 314 | if (windowsKeyCode >= WebCore::VKEY_A && windowsKeyCode <= WebCore::VKEY_Z) { |
| 315 | // ctrl-A ~ ctrl-Z map to \x01 ~ \x1A |
| 316 | return windowsKeyCode - WebCore::VKEY_A + 1; |
| 317 | } |
| 318 | if (shift) { |
| 319 | // following graphics chars require shift key to input. |
| 320 | switch (windowsKeyCode) { |
| 321 | // ctrl-@ maps to \x00 (Null byte) |
| 322 | case WebCore::VKEY_2: |
| 323 | return 0; |
| 324 | // ctrl-^ maps to \x1E (Record separator, Information separator two) |
| 325 | case WebCore::VKEY_6: |
| 326 | return 0x1E; |
| 327 | // ctrl-_ maps to \x1F (Unit separator, Information separator one) |
| 328 | case WebCore::VKEY_OEM_MINUS: |
| 329 | return 0x1F; |
| 330 | // Returns 0 for all other keys to avoid inputting unexpected chars. |
| 331 | default: |
| 332 | return 0; |
| 333 | } |
| 334 | } else { |
| 335 | switch (windowsKeyCode) { |
| 336 | // ctrl-[ maps to \x1B (Escape) |
| 337 | case WebCore::VKEY_OEM_4: |
| 338 | return 0x1B; |
| 339 | // ctrl-\ maps to \x1C (File separator, Information separator four) |
| 340 | case WebCore::VKEY_OEM_5: |
| 341 | return 0x1C; |
| 342 | // ctrl-] maps to \x1D (Group separator, Information separator three) |
| 343 | case WebCore::VKEY_OEM_6: |
| 344 | return 0x1D; |
| 345 | // ctrl-Enter maps to \x0A (Line feed) |
| 346 | case WebCore::VKEY_RETURN: |
| 347 | return 0x0A; |
| 348 | // Returns 0 for all other keys to avoid inputting unexpected chars. |
| 349 | default: |
| 350 | return 0; |
| 351 | } |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | // WebKeyboardEvent ----------------------------------------------------------- |
| 356 | |
| 357 | WebKeyboardEvent WebInputEventFactory::keyboardEvent(const GdkEventKey* event) |
| 358 | { |
| 359 | WebKeyboardEvent result; |
| 360 | |
| 361 | result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); |
| 362 | result.modifiers = gdkStateToWebEventModifiers(normalizeEventState(event)); |
| 363 | |
| 364 | switch (event->type) { |
| 365 | case GDK_KEY_RELEASE: |
| 366 | result.type = WebInputEvent::KeyUp; |
| 367 | break; |
| 368 | case GDK_KEY_PRESS: |
| 369 | result.type = WebInputEvent::RawKeyDown; |
| 370 | break; |
| 371 | default: |
| 372 | ASSERT_NOT_REACHED(); |
| 373 | } |
| 374 | |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 375 | result.isSystemKey = WebInputEventFactory::isSystemKeyEvent(result); |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 376 | |
| 377 | // The key code tells us which physical key was pressed (for example, the |
| 378 | // A key went down or up). It does not determine whether A should be lower |
| 379 | // or upper case. This is what text does, which should be the keyval. |
| 380 | int windowsKeyCode = gdkEventToWindowsKeyCode(event); |
| 381 | result.windowsKeyCode = WebKeyboardEvent::windowsKeyCodeWithoutLocation(windowsKeyCode); |
| 382 | result.modifiers |= WebKeyboardEvent::locationModifiersFromWindowsKeyCode(windowsKeyCode); |
| 383 | result.nativeKeyCode = event->hardware_keycode; |
| 384 | |
| 385 | if (result.windowsKeyCode == WebCore::VKEY_RETURN) |
| 386 | // We need to treat the enter key as a key press of character \r. This |
| 387 | // is apparently just how webkit handles it and what it expects. |
| 388 | result.unmodifiedText[0] = '\r'; |
| 389 | else |
| 390 | // FIXME: fix for non BMP chars |
| 391 | result.unmodifiedText[0] = |
| 392 | static_cast<WebUChar>(gdk_keyval_to_unicode(event->keyval)); |
| 393 | |
| 394 | // If ctrl key is pressed down, then control character shall be input. |
| 395 | if (result.modifiers & WebInputEvent::ControlKey) |
| 396 | result.text[0] = getControlCharacter( |
| 397 | result.windowsKeyCode, result.modifiers & WebInputEvent::ShiftKey); |
| 398 | else |
| 399 | result.text[0] = result.unmodifiedText[0]; |
| 400 | |
| 401 | result.setKeyIdentifierFromWindowsKeyCode(); |
| 402 | |
| 403 | // FIXME: Do we need to set IsAutoRepeat? |
| 404 | if (isKeyPadKeyval(event->keyval)) |
| 405 | result.modifiers |= WebInputEvent::IsKeyPad; |
| 406 | |
| 407 | return result; |
| 408 | } |
| 409 | |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 410 | bool WebInputEventFactory::isSystemKeyEvent(const WebKeyboardEvent& event) |
| 411 | { |
| 412 | // On Windows all keys with Alt modifier will be marked as system key. |
| 413 | // We keep the same behavior on Linux and everywhere non-Mac. |
| 414 | return event.modifiers & WebInputEvent::AltKey; |
| 415 | } |
| 416 | |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 417 | WebKeyboardEvent WebInputEventFactory::keyboardEvent(wchar_t character, int state, double timeStampSeconds) |
| 418 | { |
| 419 | // keyboardEvent(const GdkEventKey*) depends on the GdkEventKey object and |
| 420 | // it is hard to use/ it from signal handlers which don't use GdkEventKey |
| 421 | // objects (e.g. GtkIMContext signal handlers.) For such handlers, this |
| 422 | // function creates a WebInputEvent::Char event without using a |
| 423 | // GdkEventKey object. |
| 424 | WebKeyboardEvent result; |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 425 | result.type = blink::WebInputEvent::Char; |
Torne (Richard Coles) | 5c87bf8 | 2012-11-14 11:46:17 +0000 | [diff] [blame] | 426 | result.timeStampSeconds = timeStampSeconds; |
| 427 | result.modifiers = gdkStateToWebEventModifiers(state); |
| 428 | result.windowsKeyCode = character; |
| 429 | result.nativeKeyCode = character; |
| 430 | result.text[0] = character; |
| 431 | result.unmodifiedText[0] = character; |
| 432 | |
| 433 | // According to MSDN: |
| 434 | // http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx |
| 435 | // Key events with Alt modifier and F10 are system key events. |
| 436 | // We just emulate this behavior. It's necessary to prevent webkit from |
| 437 | // processing keypress event generated by alt-d, etc. |
| 438 | // F10 is not special on Linux, so don't treat it as system key. |
| 439 | if (result.modifiers & WebInputEvent::AltKey) |
| 440 | result.isSystemKey = true; |
| 441 | |
| 442 | return result; |
| 443 | } |
| 444 | |
| 445 | // WebMouseEvent -------------------------------------------------------------- |
| 446 | |
| 447 | WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventButton* event) |
| 448 | { |
| 449 | WebMouseEvent result; |
| 450 | |
| 451 | result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); |
| 452 | |
| 453 | result.modifiers = gdkStateToWebEventModifiers(event->state); |
| 454 | result.x = static_cast<int>(event->x); |
| 455 | result.y = static_cast<int>(event->y); |
| 456 | result.windowX = result.x; |
| 457 | result.windowY = result.y; |
| 458 | result.globalX = static_cast<int>(event->x_root); |
| 459 | result.globalY = static_cast<int>(event->y_root); |
| 460 | result.clickCount = 0; |
| 461 | |
| 462 | switch (event->type) { |
| 463 | case GDK_BUTTON_PRESS: |
| 464 | result.type = WebInputEvent::MouseDown; |
| 465 | break; |
| 466 | case GDK_BUTTON_RELEASE: |
| 467 | result.type = WebInputEvent::MouseUp; |
| 468 | break; |
| 469 | case GDK_3BUTTON_PRESS: |
| 470 | case GDK_2BUTTON_PRESS: |
| 471 | default: |
| 472 | ASSERT_NOT_REACHED(); |
| 473 | }; |
| 474 | |
| 475 | result.button = WebMouseEvent::ButtonNone; |
| 476 | if (event->button == 1) |
| 477 | result.button = WebMouseEvent::ButtonLeft; |
| 478 | else if (event->button == 2) |
| 479 | result.button = WebMouseEvent::ButtonMiddle; |
| 480 | else if (event->button == 3) |
| 481 | result.button = WebMouseEvent::ButtonRight; |
| 482 | |
| 483 | if (result.type == WebInputEvent::MouseDown) { |
| 484 | bool forgetPreviousClick = shouldForgetPreviousClick(event->window, event->time, event->x, event->y); |
| 485 | |
| 486 | if (!forgetPreviousClick && result.button == gLastClickButton) |
| 487 | ++gNumClicks; |
| 488 | else { |
| 489 | gNumClicks = 1; |
| 490 | |
| 491 | gLastClickEventWindow = event->window; |
| 492 | gLastClickX = event->x; |
| 493 | gLastClickY = event->y; |
| 494 | gLastClickButton = result.button; |
| 495 | } |
| 496 | gLastClickTime = event->time; |
| 497 | } |
| 498 | result.clickCount = gNumClicks; |
| 499 | |
| 500 | return result; |
| 501 | } |
| 502 | |
| 503 | WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventMotion* event) |
| 504 | { |
| 505 | WebMouseEvent result; |
| 506 | |
| 507 | result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); |
| 508 | result.modifiers = gdkStateToWebEventModifiers(event->state); |
| 509 | result.x = static_cast<int>(event->x); |
| 510 | result.y = static_cast<int>(event->y); |
| 511 | result.windowX = result.x; |
| 512 | result.windowY = result.y; |
| 513 | result.globalX = static_cast<int>(event->x_root); |
| 514 | result.globalY = static_cast<int>(event->y_root); |
| 515 | |
| 516 | switch (event->type) { |
| 517 | case GDK_MOTION_NOTIFY: |
| 518 | result.type = WebInputEvent::MouseMove; |
| 519 | break; |
| 520 | default: |
| 521 | ASSERT_NOT_REACHED(); |
| 522 | } |
| 523 | |
| 524 | result.button = WebMouseEvent::ButtonNone; |
| 525 | if (event->state & GDK_BUTTON1_MASK) |
| 526 | result.button = WebMouseEvent::ButtonLeft; |
| 527 | else if (event->state & GDK_BUTTON2_MASK) |
| 528 | result.button = WebMouseEvent::ButtonMiddle; |
| 529 | else if (event->state & GDK_BUTTON3_MASK) |
| 530 | result.button = WebMouseEvent::ButtonRight; |
| 531 | |
| 532 | if (shouldForgetPreviousClick(event->window, event->time, event->x, event->y)) |
| 533 | resetClickCountState(); |
| 534 | |
| 535 | return result; |
| 536 | } |
| 537 | |
| 538 | WebMouseEvent WebInputEventFactory::mouseEvent(const GdkEventCrossing* event) |
| 539 | { |
| 540 | WebMouseEvent result; |
| 541 | |
| 542 | result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); |
| 543 | result.modifiers = gdkStateToWebEventModifiers(event->state); |
| 544 | result.x = static_cast<int>(event->x); |
| 545 | result.y = static_cast<int>(event->y); |
| 546 | result.windowX = result.x; |
| 547 | result.windowY = result.y; |
| 548 | result.globalX = static_cast<int>(event->x_root); |
| 549 | result.globalY = static_cast<int>(event->y_root); |
| 550 | |
| 551 | switch (event->type) { |
| 552 | case GDK_ENTER_NOTIFY: |
| 553 | case GDK_LEAVE_NOTIFY: |
| 554 | // Note that if we sent MouseEnter or MouseLeave to WebKit, it |
| 555 | // wouldn't work - they don't result in the proper JavaScript events. |
| 556 | // MouseMove does the right thing. |
| 557 | result.type = WebInputEvent::MouseMove; |
| 558 | break; |
| 559 | default: |
| 560 | ASSERT_NOT_REACHED(); |
| 561 | } |
| 562 | |
| 563 | result.button = WebMouseEvent::ButtonNone; |
| 564 | if (event->state & GDK_BUTTON1_MASK) |
| 565 | result.button = WebMouseEvent::ButtonLeft; |
| 566 | else if (event->state & GDK_BUTTON2_MASK) |
| 567 | result.button = WebMouseEvent::ButtonMiddle; |
| 568 | else if (event->state & GDK_BUTTON3_MASK) |
| 569 | result.button = WebMouseEvent::ButtonRight; |
| 570 | |
| 571 | if (shouldForgetPreviousClick(event->window, event->time, event->x, event->y)) |
| 572 | resetClickCountState(); |
| 573 | |
| 574 | return result; |
| 575 | } |
| 576 | |
| 577 | // WebMouseWheelEvent --------------------------------------------------------- |
| 578 | |
| 579 | WebMouseWheelEvent WebInputEventFactory::mouseWheelEvent(const GdkEventScroll* event) |
| 580 | { |
| 581 | WebMouseWheelEvent result; |
| 582 | |
| 583 | result.type = WebInputEvent::MouseWheel; |
| 584 | result.button = WebMouseEvent::ButtonNone; |
| 585 | |
| 586 | result.timeStampSeconds = gdkEventTimeToWebEventTime(event->time); |
| 587 | result.modifiers = gdkStateToWebEventModifiers(event->state); |
| 588 | result.x = static_cast<int>(event->x); |
| 589 | result.y = static_cast<int>(event->y); |
| 590 | result.windowX = result.x; |
| 591 | result.windowY = result.y; |
| 592 | result.globalX = static_cast<int>(event->x_root); |
| 593 | result.globalY = static_cast<int>(event->y_root); |
| 594 | |
| 595 | // How much should we scroll per mouse wheel event? |
| 596 | // - Windows uses 3 lines by default and obeys a system setting. |
| 597 | // - Mozilla has a pref that lets you either use the "system" number of lines |
| 598 | // to scroll, or lets the user override it. |
| 599 | // For the "system" number of lines, it appears they've hardcoded 3. |
| 600 | // See case NS_MOUSE_SCROLL in content/events/src/nsEventStateManager.cpp |
| 601 | // and InitMouseScrollEvent in widget/src/gtk2/nsCommonWidget.cpp . |
| 602 | // - Gtk makes the scroll amount a function of the size of the scroll bar, |
| 603 | // which is not available to us here. |
| 604 | // Instead, we pick a number that empirically matches Firefox's behavior. |
| 605 | static const float scrollbarPixelsPerTick = 160.0f / 3.0f; |
| 606 | |
| 607 | switch (event->direction) { |
| 608 | case GDK_SCROLL_UP: |
| 609 | result.deltaY = scrollbarPixelsPerTick; |
| 610 | result.wheelTicksY = 1; |
| 611 | break; |
| 612 | case GDK_SCROLL_DOWN: |
| 613 | result.deltaY = -scrollbarPixelsPerTick; |
| 614 | result.wheelTicksY = -1; |
| 615 | break; |
| 616 | case GDK_SCROLL_LEFT: |
| 617 | result.deltaX = scrollbarPixelsPerTick; |
| 618 | result.wheelTicksX = 1; |
| 619 | break; |
| 620 | case GDK_SCROLL_RIGHT: |
| 621 | result.deltaX = -scrollbarPixelsPerTick; |
| 622 | result.wheelTicksX = -1; |
| 623 | break; |
| 624 | } |
| 625 | |
| 626 | return result; |
| 627 | } |
| 628 | |
Torne (Richard Coles) | 51b2906 | 2013-11-28 11:56:03 +0000 | [diff] [blame] | 629 | } // namespace blink |