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cef/tests/cefclient/browser/browser_window_osr_gtk.cc
Marshall Greenblatt d02d252690 cefclient: Convert NULL to nullptr (see issue #2861)
2020-01-15 16:11:53 +01:00

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// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "tests/cefclient/browser/browser_window_osr_gtk.h"
#include <GL/gl.h>
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk/gdkx.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#include <gtk/gtkgl.h>
#define XK_3270 // for XK_3270_BackTab
#include <X11/XF86keysym.h>
#include <X11/Xcursor/Xcursor.h>
#include <X11/extensions/XInput2.h>
#include <X11/keysym.h>
#include "include/base/cef_logging.h"
#include "include/base/cef_macros.h"
#include "include/wrapper/cef_closure_task.h"
#include "tests/cefclient/browser/util_gtk.h"
#include "tests/shared/browser/geometry_util.h"
#include "tests/shared/browser/main_message_loop.h"
namespace client {
namespace {
// Major opcode of XInputExtension, or -1 if XInput 2.2 is not available.
int g_xinput_extension = -1;
// Static BrowserWindowOsrGtk::EventFilter needs to forward touch events
// to correct browser, so we maintain a vector of all windows.
std::vector<BrowserWindowOsrGtk*> g_browser_windows;
bool IsTouchAvailable() {
return g_xinput_extension != -1;
}
int GetCefStateModifiers(guint state) {
int modifiers = 0;
if (state & GDK_SHIFT_MASK)
modifiers |= EVENTFLAG_SHIFT_DOWN;
if (state & GDK_LOCK_MASK)
modifiers |= EVENTFLAG_CAPS_LOCK_ON;
if (state & GDK_CONTROL_MASK)
modifiers |= EVENTFLAG_CONTROL_DOWN;
if (state & GDK_MOD1_MASK)
modifiers |= EVENTFLAG_ALT_DOWN;
if (state & GDK_BUTTON1_MASK)
modifiers |= EVENTFLAG_LEFT_MOUSE_BUTTON;
if (state & GDK_BUTTON2_MASK)
modifiers |= EVENTFLAG_MIDDLE_MOUSE_BUTTON;
if (state & GDK_BUTTON3_MASK)
modifiers |= EVENTFLAG_RIGHT_MOUSE_BUTTON;
return modifiers;
}
int GetCefStateModifiers(XIModifierState mods, XIButtonState buttons) {
guint state = mods.effective;
if (buttons.mask_len >= 1) {
if (XIMaskIsSet(buttons.mask, 1))
state |= GDK_BUTTON1_MASK;
if (XIMaskIsSet(buttons.mask, 2))
state |= GDK_BUTTON2_MASK;
if (XIMaskIsSet(buttons.mask, 3))
state |= GDK_BUTTON3_MASK;
}
return GetCefStateModifiers(state);
}
// From ui/events/keycodes/keyboard_codes_posix.h.
enum KeyboardCode {
VKEY_BACK = 0x08,
VKEY_TAB = 0x09,
VKEY_BACKTAB = 0x0A,
VKEY_CLEAR = 0x0C,
VKEY_RETURN = 0x0D,
VKEY_SHIFT = 0x10,
VKEY_CONTROL = 0x11,
VKEY_MENU = 0x12,
VKEY_PAUSE = 0x13,
VKEY_CAPITAL = 0x14,
VKEY_KANA = 0x15,
VKEY_HANGUL = 0x15,
VKEY_JUNJA = 0x17,
VKEY_FINAL = 0x18,
VKEY_HANJA = 0x19,
VKEY_KANJI = 0x19,
VKEY_ESCAPE = 0x1B,
VKEY_CONVERT = 0x1C,
VKEY_NONCONVERT = 0x1D,
VKEY_ACCEPT = 0x1E,
VKEY_MODECHANGE = 0x1F,
VKEY_SPACE = 0x20,
VKEY_PRIOR = 0x21,
VKEY_NEXT = 0x22,
VKEY_END = 0x23,
VKEY_HOME = 0x24,
VKEY_LEFT = 0x25,
VKEY_UP = 0x26,
VKEY_RIGHT = 0x27,
VKEY_DOWN = 0x28,
VKEY_SELECT = 0x29,
VKEY_PRINT = 0x2A,
VKEY_EXECUTE = 0x2B,
VKEY_SNAPSHOT = 0x2C,
VKEY_INSERT = 0x2D,
VKEY_DELETE = 0x2E,
VKEY_HELP = 0x2F,
VKEY_0 = 0x30,
VKEY_1 = 0x31,
VKEY_2 = 0x32,
VKEY_3 = 0x33,
VKEY_4 = 0x34,
VKEY_5 = 0x35,
VKEY_6 = 0x36,
VKEY_7 = 0x37,
VKEY_8 = 0x38,
VKEY_9 = 0x39,
VKEY_A = 0x41,
VKEY_B = 0x42,
VKEY_C = 0x43,
VKEY_D = 0x44,
VKEY_E = 0x45,
VKEY_F = 0x46,
VKEY_G = 0x47,
VKEY_H = 0x48,
VKEY_I = 0x49,
VKEY_J = 0x4A,
VKEY_K = 0x4B,
VKEY_L = 0x4C,
VKEY_M = 0x4D,
VKEY_N = 0x4E,
VKEY_O = 0x4F,
VKEY_P = 0x50,
VKEY_Q = 0x51,
VKEY_R = 0x52,
VKEY_S = 0x53,
VKEY_T = 0x54,
VKEY_U = 0x55,
VKEY_V = 0x56,
VKEY_W = 0x57,
VKEY_X = 0x58,
VKEY_Y = 0x59,
VKEY_Z = 0x5A,
VKEY_LWIN = 0x5B,
VKEY_COMMAND = VKEY_LWIN, // Provide the Mac name for convenience.
VKEY_RWIN = 0x5C,
VKEY_APPS = 0x5D,
VKEY_SLEEP = 0x5F,
VKEY_NUMPAD0 = 0x60,
VKEY_NUMPAD1 = 0x61,
VKEY_NUMPAD2 = 0x62,
VKEY_NUMPAD3 = 0x63,
VKEY_NUMPAD4 = 0x64,
VKEY_NUMPAD5 = 0x65,
VKEY_NUMPAD6 = 0x66,
VKEY_NUMPAD7 = 0x67,
VKEY_NUMPAD8 = 0x68,
VKEY_NUMPAD9 = 0x69,
VKEY_MULTIPLY = 0x6A,
VKEY_ADD = 0x6B,
VKEY_SEPARATOR = 0x6C,
VKEY_SUBTRACT = 0x6D,
VKEY_DECIMAL = 0x6E,
VKEY_DIVIDE = 0x6F,
VKEY_F1 = 0x70,
VKEY_F2 = 0x71,
VKEY_F3 = 0x72,
VKEY_F4 = 0x73,
VKEY_F5 = 0x74,
VKEY_F6 = 0x75,
VKEY_F7 = 0x76,
VKEY_F8 = 0x77,
VKEY_F9 = 0x78,
VKEY_F10 = 0x79,
VKEY_F11 = 0x7A,
VKEY_F12 = 0x7B,
VKEY_F13 = 0x7C,
VKEY_F14 = 0x7D,
VKEY_F15 = 0x7E,
VKEY_F16 = 0x7F,
VKEY_F17 = 0x80,
VKEY_F18 = 0x81,
VKEY_F19 = 0x82,
VKEY_F20 = 0x83,
VKEY_F21 = 0x84,
VKEY_F22 = 0x85,
VKEY_F23 = 0x86,
VKEY_F24 = 0x87,
VKEY_NUMLOCK = 0x90,
VKEY_SCROLL = 0x91,
VKEY_LSHIFT = 0xA0,
VKEY_RSHIFT = 0xA1,
VKEY_LCONTROL = 0xA2,
VKEY_RCONTROL = 0xA3,
VKEY_LMENU = 0xA4,
VKEY_RMENU = 0xA5,
VKEY_BROWSER_BACK = 0xA6,
VKEY_BROWSER_FORWARD = 0xA7,
VKEY_BROWSER_REFRESH = 0xA8,
VKEY_BROWSER_STOP = 0xA9,
VKEY_BROWSER_SEARCH = 0xAA,
VKEY_BROWSER_FAVORITES = 0xAB,
VKEY_BROWSER_HOME = 0xAC,
VKEY_VOLUME_MUTE = 0xAD,
VKEY_VOLUME_DOWN = 0xAE,
VKEY_VOLUME_UP = 0xAF,
VKEY_MEDIA_NEXT_TRACK = 0xB0,
VKEY_MEDIA_PREV_TRACK = 0xB1,
VKEY_MEDIA_STOP = 0xB2,
VKEY_MEDIA_PLAY_PAUSE = 0xB3,
VKEY_MEDIA_LAUNCH_MAIL = 0xB4,
VKEY_MEDIA_LAUNCH_MEDIA_SELECT = 0xB5,
VKEY_MEDIA_LAUNCH_APP1 = 0xB6,
VKEY_MEDIA_LAUNCH_APP2 = 0xB7,
VKEY_OEM_1 = 0xBA,
VKEY_OEM_PLUS = 0xBB,
VKEY_OEM_COMMA = 0xBC,
VKEY_OEM_MINUS = 0xBD,
VKEY_OEM_PERIOD = 0xBE,
VKEY_OEM_2 = 0xBF,
VKEY_OEM_3 = 0xC0,
VKEY_OEM_4 = 0xDB,
VKEY_OEM_5 = 0xDC,
VKEY_OEM_6 = 0xDD,
VKEY_OEM_7 = 0xDE,
VKEY_OEM_8 = 0xDF,
VKEY_OEM_102 = 0xE2,
VKEY_OEM_103 = 0xE3, // GTV KEYCODE_MEDIA_REWIND
VKEY_OEM_104 = 0xE4, // GTV KEYCODE_MEDIA_FAST_FORWARD
VKEY_PROCESSKEY = 0xE5,
VKEY_PACKET = 0xE7,
VKEY_DBE_SBCSCHAR = 0xF3,
VKEY_DBE_DBCSCHAR = 0xF4,
VKEY_ATTN = 0xF6,
VKEY_CRSEL = 0xF7,
VKEY_EXSEL = 0xF8,
VKEY_EREOF = 0xF9,
VKEY_PLAY = 0xFA,
VKEY_ZOOM = 0xFB,
VKEY_NONAME = 0xFC,
VKEY_PA1 = 0xFD,
VKEY_OEM_CLEAR = 0xFE,
VKEY_UNKNOWN = 0,
// POSIX specific VKEYs. Note that as of Windows SDK 7.1, 0x97-9F, 0xD8-DA,
// and 0xE8 are unassigned.
VKEY_WLAN = 0x97,
VKEY_POWER = 0x98,
VKEY_BRIGHTNESS_DOWN = 0xD8,
VKEY_BRIGHTNESS_UP = 0xD9,
VKEY_KBD_BRIGHTNESS_DOWN = 0xDA,
VKEY_KBD_BRIGHTNESS_UP = 0xE8,
// Windows does not have a specific key code for AltGr. We use the unused 0xE1
// (VK_OEM_AX) code to represent AltGr, matching the behaviour of Firefox on
// Linux.
VKEY_ALTGR = 0xE1,
// Windows does not have a specific key code for Compose. We use the unused
// 0xE6 (VK_ICO_CLEAR) code to represent Compose.
VKEY_COMPOSE = 0xE6,
};
// From ui/events/keycodes/keyboard_code_conversion_x.cc.
// Gdk key codes (e.g. GDK_BackSpace) and X keysyms (e.g. XK_BackSpace) share
// the same values.
KeyboardCode KeyboardCodeFromXKeysym(unsigned int keysym) {
switch (keysym) {
case XK_BackSpace:
return VKEY_BACK;
case XK_Delete:
case XK_KP_Delete:
return VKEY_DELETE;
case XK_Tab:
case XK_KP_Tab:
case XK_ISO_Left_Tab:
case XK_3270_BackTab:
return VKEY_TAB;
case XK_Linefeed:
case XK_Return:
case XK_KP_Enter:
case XK_ISO_Enter:
return VKEY_RETURN;
case XK_Clear:
case XK_KP_Begin: // NumPad 5 without Num Lock, for crosbug.com/29169.
return VKEY_CLEAR;
case XK_KP_Space:
case XK_space:
return VKEY_SPACE;
case XK_Home:
case XK_KP_Home:
return VKEY_HOME;
case XK_End:
case XK_KP_End:
return VKEY_END;
case XK_Page_Up:
case XK_KP_Page_Up: // aka XK_KP_Prior
return VKEY_PRIOR;
case XK_Page_Down:
case XK_KP_Page_Down: // aka XK_KP_Next
return VKEY_NEXT;
case XK_Left:
case XK_KP_Left:
return VKEY_LEFT;
case XK_Right:
case XK_KP_Right:
return VKEY_RIGHT;
case XK_Down:
case XK_KP_Down:
return VKEY_DOWN;
case XK_Up:
case XK_KP_Up:
return VKEY_UP;
case XK_Escape:
return VKEY_ESCAPE;
case XK_Kana_Lock:
case XK_Kana_Shift:
return VKEY_KANA;
case XK_Hangul:
return VKEY_HANGUL;
case XK_Hangul_Hanja:
return VKEY_HANJA;
case XK_Kanji:
return VKEY_KANJI;
case XK_Henkan:
return VKEY_CONVERT;
case XK_Muhenkan:
return VKEY_NONCONVERT;
case XK_Zenkaku_Hankaku:
return VKEY_DBE_DBCSCHAR;
case XK_A:
case XK_a:
return VKEY_A;
case XK_B:
case XK_b:
return VKEY_B;
case XK_C:
case XK_c:
return VKEY_C;
case XK_D:
case XK_d:
return VKEY_D;
case XK_E:
case XK_e:
return VKEY_E;
case XK_F:
case XK_f:
return VKEY_F;
case XK_G:
case XK_g:
return VKEY_G;
case XK_H:
case XK_h:
return VKEY_H;
case XK_I:
case XK_i:
return VKEY_I;
case XK_J:
case XK_j:
return VKEY_J;
case XK_K:
case XK_k:
return VKEY_K;
case XK_L:
case XK_l:
return VKEY_L;
case XK_M:
case XK_m:
return VKEY_M;
case XK_N:
case XK_n:
return VKEY_N;
case XK_O:
case XK_o:
return VKEY_O;
case XK_P:
case XK_p:
return VKEY_P;
case XK_Q:
case XK_q:
return VKEY_Q;
case XK_R:
case XK_r:
return VKEY_R;
case XK_S:
case XK_s:
return VKEY_S;
case XK_T:
case XK_t:
return VKEY_T;
case XK_U:
case XK_u:
return VKEY_U;
case XK_V:
case XK_v:
return VKEY_V;
case XK_W:
case XK_w:
return VKEY_W;
case XK_X:
case XK_x:
return VKEY_X;
case XK_Y:
case XK_y:
return VKEY_Y;
case XK_Z:
case XK_z:
return VKEY_Z;
case XK_0:
case XK_1:
case XK_2:
case XK_3:
case XK_4:
case XK_5:
case XK_6:
case XK_7:
case XK_8:
case XK_9:
return static_cast<KeyboardCode>(VKEY_0 + (keysym - XK_0));
case XK_parenright:
return VKEY_0;
case XK_exclam:
return VKEY_1;
case XK_at:
return VKEY_2;
case XK_numbersign:
return VKEY_3;
case XK_dollar:
return VKEY_4;
case XK_percent:
return VKEY_5;
case XK_asciicircum:
return VKEY_6;
case XK_ampersand:
return VKEY_7;
case XK_asterisk:
return VKEY_8;
case XK_parenleft:
return VKEY_9;
case XK_KP_0:
case XK_KP_1:
case XK_KP_2:
case XK_KP_3:
case XK_KP_4:
case XK_KP_5:
case XK_KP_6:
case XK_KP_7:
case XK_KP_8:
case XK_KP_9:
return static_cast<KeyboardCode>(VKEY_NUMPAD0 + (keysym - XK_KP_0));
case XK_multiply:
case XK_KP_Multiply:
return VKEY_MULTIPLY;
case XK_KP_Add:
return VKEY_ADD;
case XK_KP_Separator:
return VKEY_SEPARATOR;
case XK_KP_Subtract:
return VKEY_SUBTRACT;
case XK_KP_Decimal:
return VKEY_DECIMAL;
case XK_KP_Divide:
return VKEY_DIVIDE;
case XK_KP_Equal:
case XK_equal:
case XK_plus:
return VKEY_OEM_PLUS;
case XK_comma:
case XK_less:
return VKEY_OEM_COMMA;
case XK_minus:
case XK_underscore:
return VKEY_OEM_MINUS;
case XK_greater:
case XK_period:
return VKEY_OEM_PERIOD;
case XK_colon:
case XK_semicolon:
return VKEY_OEM_1;
case XK_question:
case XK_slash:
return VKEY_OEM_2;
case XK_asciitilde:
case XK_quoteleft:
return VKEY_OEM_3;
case XK_bracketleft:
case XK_braceleft:
return VKEY_OEM_4;
case XK_backslash:
case XK_bar:
return VKEY_OEM_5;
case XK_bracketright:
case XK_braceright:
return VKEY_OEM_6;
case XK_quoteright:
case XK_quotedbl:
return VKEY_OEM_7;
case XK_ISO_Level5_Shift:
return VKEY_OEM_8;
case XK_Shift_L:
case XK_Shift_R:
return VKEY_SHIFT;
case XK_Control_L:
case XK_Control_R:
return VKEY_CONTROL;
case XK_Meta_L:
case XK_Meta_R:
case XK_Alt_L:
case XK_Alt_R:
return VKEY_MENU;
case XK_ISO_Level3_Shift:
return VKEY_ALTGR;
case XK_Multi_key:
return VKEY_COMPOSE;
case XK_Pause:
return VKEY_PAUSE;
case XK_Caps_Lock:
return VKEY_CAPITAL;
case XK_Num_Lock:
return VKEY_NUMLOCK;
case XK_Scroll_Lock:
return VKEY_SCROLL;
case XK_Select:
return VKEY_SELECT;
case XK_Print:
return VKEY_PRINT;
case XK_Execute:
return VKEY_EXECUTE;
case XK_Insert:
case XK_KP_Insert:
return VKEY_INSERT;
case XK_Help:
return VKEY_HELP;
case XK_Super_L:
return VKEY_LWIN;
case XK_Super_R:
return VKEY_RWIN;
case XK_Menu:
return VKEY_APPS;
case XK_F1:
case XK_F2:
case XK_F3:
case XK_F4:
case XK_F5:
case XK_F6:
case XK_F7:
case XK_F8:
case XK_F9:
case XK_F10:
case XK_F11:
case XK_F12:
case XK_F13:
case XK_F14:
case XK_F15:
case XK_F16:
case XK_F17:
case XK_F18:
case XK_F19:
case XK_F20:
case XK_F21:
case XK_F22:
case XK_F23:
case XK_F24:
return static_cast<KeyboardCode>(VKEY_F1 + (keysym - XK_F1));
case XK_KP_F1:
case XK_KP_F2:
case XK_KP_F3:
case XK_KP_F4:
return static_cast<KeyboardCode>(VKEY_F1 + (keysym - XK_KP_F1));
case XK_guillemotleft:
case XK_guillemotright:
case XK_degree:
// In the case of canadian multilingual keyboard layout, VKEY_OEM_102 is
// assigned to ugrave key.
case XK_ugrave:
case XK_Ugrave:
case XK_brokenbar:
return VKEY_OEM_102; // international backslash key in 102 keyboard.
// When evdev is in use, /usr/share/X11/xkb/symbols/inet maps F13-18 keys
// to the special XF86XK symbols to support Microsoft Ergonomic keyboards:
// https://bugs.freedesktop.org/show_bug.cgi?id=5783
// In Chrome, we map these X key symbols back to F13-18 since we don't have
// VKEYs for these XF86XK symbols.
case XF86XK_Tools:
return VKEY_F13;
case XF86XK_Launch5:
return VKEY_F14;
case XF86XK_Launch6:
return VKEY_F15;
case XF86XK_Launch7:
return VKEY_F16;
case XF86XK_Launch8:
return VKEY_F17;
case XF86XK_Launch9:
return VKEY_F18;
case XF86XK_Refresh:
case XF86XK_History:
case XF86XK_OpenURL:
case XF86XK_AddFavorite:
case XF86XK_Go:
case XF86XK_ZoomIn:
case XF86XK_ZoomOut:
// ui::AcceleratorGtk tries to convert the XF86XK_ keysyms on Chrome
// startup. It's safe to return VKEY_UNKNOWN here since ui::AcceleratorGtk
// also checks a Gdk keysym. http://crbug.com/109843
return VKEY_UNKNOWN;
// For supporting multimedia buttons on a USB keyboard.
case XF86XK_Back:
return VKEY_BROWSER_BACK;
case XF86XK_Forward:
return VKEY_BROWSER_FORWARD;
case XF86XK_Reload:
return VKEY_BROWSER_REFRESH;
case XF86XK_Stop:
return VKEY_BROWSER_STOP;
case XF86XK_Search:
return VKEY_BROWSER_SEARCH;
case XF86XK_Favorites:
return VKEY_BROWSER_FAVORITES;
case XF86XK_HomePage:
return VKEY_BROWSER_HOME;
case XF86XK_AudioMute:
return VKEY_VOLUME_MUTE;
case XF86XK_AudioLowerVolume:
return VKEY_VOLUME_DOWN;
case XF86XK_AudioRaiseVolume:
return VKEY_VOLUME_UP;
case XF86XK_AudioNext:
return VKEY_MEDIA_NEXT_TRACK;
case XF86XK_AudioPrev:
return VKEY_MEDIA_PREV_TRACK;
case XF86XK_AudioStop:
return VKEY_MEDIA_STOP;
case XF86XK_AudioPlay:
return VKEY_MEDIA_PLAY_PAUSE;
case XF86XK_Mail:
return VKEY_MEDIA_LAUNCH_MAIL;
case XF86XK_LaunchA: // F3 on an Apple keyboard.
return VKEY_MEDIA_LAUNCH_APP1;
case XF86XK_LaunchB: // F4 on an Apple keyboard.
case XF86XK_Calculator:
return VKEY_MEDIA_LAUNCH_APP2;
case XF86XK_WLAN:
return VKEY_WLAN;
case XF86XK_PowerOff:
return VKEY_POWER;
case XF86XK_MonBrightnessDown:
return VKEY_BRIGHTNESS_DOWN;
case XF86XK_MonBrightnessUp:
return VKEY_BRIGHTNESS_UP;
case XF86XK_KbdBrightnessDown:
return VKEY_KBD_BRIGHTNESS_DOWN;
case XF86XK_KbdBrightnessUp:
return VKEY_KBD_BRIGHTNESS_UP;
// TODO(sad): some keycodes are still missing.
}
return VKEY_UNKNOWN;
}
// From content/browser/renderer_host/input/web_input_event_util_posix.cc.
KeyboardCode GdkEventToWindowsKeyCode(const GdkEventKey* event) {
static const unsigned int kHardwareCodeToGDKKeyval[] = {
0, // 0x00:
0, // 0x01:
0, // 0x02:
0, // 0x03:
0, // 0x04:
0, // 0x05:
0, // 0x06:
0, // 0x07:
0, // 0x08:
0, // 0x09: GDK_Escape
GDK_1, // 0x0A: GDK_1
GDK_2, // 0x0B: GDK_2
GDK_3, // 0x0C: GDK_3
GDK_4, // 0x0D: GDK_4
GDK_5, // 0x0E: GDK_5
GDK_6, // 0x0F: GDK_6
GDK_7, // 0x10: GDK_7
GDK_8, // 0x11: GDK_8
GDK_9, // 0x12: GDK_9
GDK_0, // 0x13: GDK_0
GDK_minus, // 0x14: GDK_minus
GDK_equal, // 0x15: GDK_equal
0, // 0x16: GDK_BackSpace
0, // 0x17: GDK_Tab
GDK_q, // 0x18: GDK_q
GDK_w, // 0x19: GDK_w
GDK_e, // 0x1A: GDK_e
GDK_r, // 0x1B: GDK_r
GDK_t, // 0x1C: GDK_t
GDK_y, // 0x1D: GDK_y
GDK_u, // 0x1E: GDK_u
GDK_i, // 0x1F: GDK_i
GDK_o, // 0x20: GDK_o
GDK_p, // 0x21: GDK_p
GDK_bracketleft, // 0x22: GDK_bracketleft
GDK_bracketright, // 0x23: GDK_bracketright
0, // 0x24: GDK_Return
0, // 0x25: GDK_Control_L
GDK_a, // 0x26: GDK_a
GDK_s, // 0x27: GDK_s
GDK_d, // 0x28: GDK_d
GDK_f, // 0x29: GDK_f
GDK_g, // 0x2A: GDK_g
GDK_h, // 0x2B: GDK_h
GDK_j, // 0x2C: GDK_j
GDK_k, // 0x2D: GDK_k
GDK_l, // 0x2E: GDK_l
GDK_semicolon, // 0x2F: GDK_semicolon
GDK_apostrophe, // 0x30: GDK_apostrophe
GDK_grave, // 0x31: GDK_grave
0, // 0x32: GDK_Shift_L
GDK_backslash, // 0x33: GDK_backslash
GDK_z, // 0x34: GDK_z
GDK_x, // 0x35: GDK_x
GDK_c, // 0x36: GDK_c
GDK_v, // 0x37: GDK_v
GDK_b, // 0x38: GDK_b
GDK_n, // 0x39: GDK_n
GDK_m, // 0x3A: GDK_m
GDK_comma, // 0x3B: GDK_comma
GDK_period, // 0x3C: GDK_period
GDK_slash, // 0x3D: GDK_slash
0, // 0x3E: GDK_Shift_R
0, // 0x3F:
0, // 0x40:
0, // 0x41:
0, // 0x42:
0, // 0x43:
0, // 0x44:
0, // 0x45:
0, // 0x46:
0, // 0x47:
0, // 0x48:
0, // 0x49:
0, // 0x4A:
0, // 0x4B:
0, // 0x4C:
0, // 0x4D:
0, // 0x4E:
0, // 0x4F:
0, // 0x50:
0, // 0x51:
0, // 0x52:
0, // 0x53:
0, // 0x54:
0, // 0x55:
0, // 0x56:
0, // 0x57:
0, // 0x58:
0, // 0x59:
0, // 0x5A:
0, // 0x5B:
0, // 0x5C:
0, // 0x5D:
0, // 0x5E:
0, // 0x5F:
0, // 0x60:
0, // 0x61:
0, // 0x62:
0, // 0x63:
0, // 0x64:
0, // 0x65:
0, // 0x66:
0, // 0x67:
0, // 0x68:
0, // 0x69:
0, // 0x6A:
0, // 0x6B:
0, // 0x6C:
0, // 0x6D:
0, // 0x6E:
0, // 0x6F:
0, // 0x70:
0, // 0x71:
0, // 0x72:
GDK_Super_L, // 0x73: GDK_Super_L
GDK_Super_R, // 0x74: GDK_Super_R
};
// |windows_key_code| has to include a valid virtual-key code even when we
// use non-US layouts, e.g. even when we type an 'A' key of a US keyboard
// on the Hebrew layout, |windows_key_code| should be VK_A.
// On the other hand, |event->keyval| value depends on the current
// GdkKeymap object, i.e. when we type an 'A' key of a US keyboard on
// the Hebrew layout, |event->keyval| becomes GDK_hebrew_shin and this
// KeyboardCodeFromXKeysym() call returns 0.
// To improve compatibilty with Windows, we use |event->hardware_keycode|
// for retrieving its Windows key-code for the keys when the
// WebCore::windows_key_codeForEvent() call returns 0.
// We shouldn't use |event->hardware_keycode| for keys that GdkKeymap
// objects cannot change because |event->hardware_keycode| doesn't change
// even when we change the layout options, e.g. when we swap a control
// key and a caps-lock key, GTK doesn't swap their
// |event->hardware_keycode| values but swap their |event->keyval| values.
KeyboardCode windows_key_code = KeyboardCodeFromXKeysym(event->keyval);
if (windows_key_code)
return windows_key_code;
if (event->hardware_keycode < arraysize(kHardwareCodeToGDKKeyval)) {
int keyval = kHardwareCodeToGDKKeyval[event->hardware_keycode];
if (keyval)
return KeyboardCodeFromXKeysym(keyval);
}
// This key is one that keyboard-layout drivers cannot change.
// Use |event->keyval| to retrieve its |windows_key_code| value.
return KeyboardCodeFromXKeysym(event->keyval);
}
// From content/browser/renderer_host/input/web_input_event_util_posix.cc.
KeyboardCode GetWindowsKeyCodeWithoutLocation(KeyboardCode key_code) {
switch (key_code) {
case VKEY_LCONTROL:
case VKEY_RCONTROL:
return VKEY_CONTROL;
case VKEY_LSHIFT:
case VKEY_RSHIFT:
return VKEY_SHIFT;
case VKEY_LMENU:
case VKEY_RMENU:
return VKEY_MENU;
default:
return key_code;
}
}
// From content/browser/renderer_host/input/web_input_event_builders_gtk.cc.
// Gets the corresponding control character of a specified key code. See:
// http://en.wikipedia.org/wiki/Control_characters
// We emulate Windows behavior here.
int GetControlCharacter(KeyboardCode windows_key_code, bool shift) {
if (windows_key_code >= VKEY_A && windows_key_code <= VKEY_Z) {
// ctrl-A ~ ctrl-Z map to \x01 ~ \x1A
return windows_key_code - VKEY_A + 1;
}
if (shift) {
// following graphics chars require shift key to input.
switch (windows_key_code) {
// ctrl-@ maps to \x00 (Null byte)
case VKEY_2:
return 0;
// ctrl-^ maps to \x1E (Record separator, Information separator two)
case VKEY_6:
return 0x1E;
// ctrl-_ maps to \x1F (Unit separator, Information separator one)
case VKEY_OEM_MINUS:
return 0x1F;
// Returns 0 for all other keys to avoid inputting unexpected chars.
default:
return 0;
}
} else {
switch (windows_key_code) {
// ctrl-[ maps to \x1B (Escape)
case VKEY_OEM_4:
return 0x1B;
// ctrl-\ maps to \x1C (File separator, Information separator four)
case VKEY_OEM_5:
return 0x1C;
// ctrl-] maps to \x1D (Group separator, Information separator three)
case VKEY_OEM_6:
return 0x1D;
// ctrl-Enter maps to \x0A (Line feed)
case VKEY_RETURN:
return 0x0A;
// Returns 0 for all other keys to avoid inputting unexpected chars.
default:
return 0;
}
}
}
void GetWidgetRectInScreen(GtkWidget* widget, GdkRectangle* r) {
gint x, y, w, h;
GdkRectangle extents;
GdkWindow* window = gtk_widget_get_parent_window(widget);
// Get parent's left-top screen coordinates.
gdk_window_get_root_origin(window, &x, &y);
// Get parent's width and height.
gdk_drawable_get_size(window, &w, &h);
// Get parent's extents including decorations.
gdk_window_get_frame_extents(window, &extents);
// X and Y calculations assume that left, right and bottom border sizes are
// all the same.
const gint border = (extents.width - w) / 2;
r->x = x + border + widget->allocation.x;
r->y = y + (extents.height - h) - border + widget->allocation.y;
r->width = widget->allocation.width;
r->height = widget->allocation.height;
}
CefBrowserHost::DragOperationsMask GetDragOperationsMask(
GdkDragContext* drag_context) {
int allowed_ops = DRAG_OPERATION_NONE;
GdkDragAction drag_action = gdk_drag_context_get_actions(drag_context);
if (drag_action & GDK_ACTION_COPY)
allowed_ops |= DRAG_OPERATION_COPY;
if (drag_action & GDK_ACTION_MOVE)
allowed_ops |= DRAG_OPERATION_MOVE;
if (drag_action & GDK_ACTION_LINK)
allowed_ops |= DRAG_OPERATION_LINK;
if (drag_action & GDK_ACTION_PRIVATE)
allowed_ops |= DRAG_OPERATION_PRIVATE;
return static_cast<CefBrowserHost::DragOperationsMask>(allowed_ops);
}
class ScopedGLContext {
public:
ScopedGLContext(GtkWidget* widget, bool swap_buffers)
: swap_buffers_(swap_buffers) {
GdkGLContext* glcontext = gtk_widget_get_gl_context(widget);
gldrawable_ = gtk_widget_get_gl_drawable(widget);
is_valid_ = gdk_gl_drawable_gl_begin(gldrawable_, glcontext);
}
virtual ~ScopedGLContext() {
if (is_valid_) {
gdk_gl_drawable_gl_end(gldrawable_);
if (swap_buffers_) {
if (gdk_gl_drawable_is_double_buffered(gldrawable_))
gdk_gl_drawable_swap_buffers(gldrawable_);
else
glFlush();
}
}
}
bool IsValid() const { return is_valid_; }
private:
bool swap_buffers_;
GdkGLDrawable* gldrawable_;
bool is_valid_;
ScopedGdkThreadsEnter scoped_gdk_threads_;
};
} // namespace
BrowserWindowOsrGtk::BrowserWindowOsrGtk(BrowserWindow::Delegate* delegate,
const std::string& startup_url,
const OsrRendererSettings& settings)
: BrowserWindow(delegate),
xdisplay_(nullptr),
renderer_(settings),
gl_enabled_(false),
painting_popup_(false),
hidden_(false),
glarea_(NULL),
drag_trigger_event_(nullptr),
drag_data_(nullptr),
drag_operation_(DRAG_OPERATION_NONE),
drag_context_(nullptr),
drag_targets_(gtk_target_list_new(NULL, 0)),
drag_leave_(false),
drag_drop_(false),
device_scale_factor_(1.0f) {
client_handler_ = new ClientHandlerOsr(this, this, startup_url);
g_browser_windows.push_back(this);
}
BrowserWindowOsrGtk::~BrowserWindowOsrGtk() {
g_browser_windows.erase(
std::find(g_browser_windows.begin(), g_browser_windows.end(), this));
ScopedGdkThreadsEnter scoped_gdk_threads;
if (drag_trigger_event_) {
gdk_event_free(drag_trigger_event_);
}
if (drag_context_) {
g_object_unref(drag_context_);
}
gtk_target_list_unref(drag_targets_);
}
void BrowserWindowOsrGtk::set_xdisplay(XDisplay* xdisplay) {
REQUIRE_MAIN_THREAD();
DCHECK(!xdisplay_);
xdisplay_ = xdisplay;
}
void BrowserWindowOsrGtk::CreateBrowser(
ClientWindowHandle parent_handle,
const CefRect& rect,
const CefBrowserSettings& settings,
CefRefPtr<CefDictionaryValue> extra_info,
CefRefPtr<CefRequestContext> request_context) {
REQUIRE_MAIN_THREAD();
// Create the native window.
Create(parent_handle);
ScopedGdkThreadsEnter scoped_gdk_threads;
// Retrieve the X11 Window ID for the GTK parent window.
GtkWidget* window =
gtk_widget_get_ancestor(GTK_WIDGET(parent_handle), GTK_TYPE_WINDOW);
::Window xwindow = GDK_WINDOW_XID(gtk_widget_get_window(window));
DCHECK(xwindow);
CefWindowInfo window_info;
window_info.SetAsWindowless(xwindow);
// Create the browser asynchronously.
CefBrowserHost::CreateBrowser(window_info, client_handler_,
client_handler_->startup_url(), settings,
extra_info, request_context);
}
void BrowserWindowOsrGtk::GetPopupConfig(CefWindowHandle temp_handle,
CefWindowInfo& windowInfo,
CefRefPtr<CefClient>& client,
CefBrowserSettings& settings) {
CEF_REQUIRE_UI_THREAD();
windowInfo.SetAsWindowless(temp_handle);
client = client_handler_;
}
void BrowserWindowOsrGtk::ShowPopup(ClientWindowHandle parent_handle,
int x,
int y,
size_t width,
size_t height) {
REQUIRE_MAIN_THREAD();
DCHECK(browser_.get());
// Create the native window.
Create(parent_handle);
// Send resize notification so the compositor is assigned the correct
// viewport size and begins rendering.
browser_->GetHost()->WasResized();
Show();
}
void BrowserWindowOsrGtk::Show() {
REQUIRE_MAIN_THREAD();
if (hidden_) {
// Set the browser as visible.
browser_->GetHost()->WasHidden(false);
hidden_ = false;
}
// Give focus to the browser.
browser_->GetHost()->SendFocusEvent(true);
}
void BrowserWindowOsrGtk::Hide() {
REQUIRE_MAIN_THREAD();
if (!browser_)
return;
// Remove focus from the browser.
browser_->GetHost()->SendFocusEvent(false);
if (!hidden_) {
// Set the browser as hidden.
browser_->GetHost()->WasHidden(true);
hidden_ = true;
}
}
void BrowserWindowOsrGtk::SetBounds(int x, int y, size_t width, size_t height) {
REQUIRE_MAIN_THREAD();
// Nothing to do here. GTK will take care of positioning in the container.
}
void BrowserWindowOsrGtk::SetFocus(bool focus) {
REQUIRE_MAIN_THREAD();
ScopedGdkThreadsEnter scoped_gdk_threads;
if (glarea_ && focus) {
gtk_widget_grab_focus(glarea_);
}
}
void BrowserWindowOsrGtk::SetDeviceScaleFactor(float device_scale_factor) {
REQUIRE_MAIN_THREAD();
{
base::AutoLock lock_scope(lock_);
if (device_scale_factor == device_scale_factor_)
return;
// Apply some sanity checks.
if (device_scale_factor < 1.0f || device_scale_factor > 4.0f)
return;
device_scale_factor_ = device_scale_factor;
}
if (browser_) {
browser_->GetHost()->NotifyScreenInfoChanged();
browser_->GetHost()->WasResized();
}
}
float BrowserWindowOsrGtk::GetDeviceScaleFactor() const {
REQUIRE_MAIN_THREAD();
base::AutoLock lock_scope(lock_);
return device_scale_factor_;
}
ClientWindowHandle BrowserWindowOsrGtk::GetWindowHandle() const {
REQUIRE_MAIN_THREAD();
return glarea_;
}
void BrowserWindowOsrGtk::OnAfterCreated(CefRefPtr<CefBrowser> browser) {
CEF_REQUIRE_UI_THREAD();
}
void BrowserWindowOsrGtk::OnBeforeClose(CefRefPtr<CefBrowser> browser) {
CEF_REQUIRE_UI_THREAD();
// Detach |this| from the ClientHandlerOsr.
static_cast<ClientHandlerOsr*>(client_handler_.get())->DetachOsrDelegate();
ScopedGdkThreadsEnter scoped_gdk_threads;
UnregisterDragDrop();
// Disconnect all signal handlers that reference |this|.
g_signal_handlers_disconnect_matched(glarea_, G_SIGNAL_MATCH_DATA, 0, 0, NULL,
NULL, this);
DisableGL();
}
bool BrowserWindowOsrGtk::GetRootScreenRect(CefRefPtr<CefBrowser> browser,
CefRect& rect) {
CEF_REQUIRE_UI_THREAD();
return false;
}
void BrowserWindowOsrGtk::GetViewRect(CefRefPtr<CefBrowser> browser,
CefRect& rect) {
CEF_REQUIRE_UI_THREAD();
rect.x = rect.y = 0;
if (!glarea_) {
// Never return an empty rectangle.
rect.width = rect.height = 1;
return;
}
float device_scale_factor;
{
base::AutoLock lock_scope(lock_);
device_scale_factor = device_scale_factor_;
}
// The simulated screen and view rectangle are the same. This is necessary
// for popup menus to be located and sized inside the view.
rect.width = DeviceToLogical(glarea_->allocation.width, device_scale_factor);
if (rect.width == 0)
rect.width = 1;
rect.height =
DeviceToLogical(glarea_->allocation.height, device_scale_factor);
if (rect.height == 0)
rect.height = 1;
}
bool BrowserWindowOsrGtk::GetScreenPoint(CefRefPtr<CefBrowser> browser,
int viewX,
int viewY,
int& screenX,
int& screenY) {
CEF_REQUIRE_UI_THREAD();
float device_scale_factor;
{
base::AutoLock lock_scope(lock_);
device_scale_factor = device_scale_factor_;
}
GdkRectangle screen_rect;
GetWidgetRectInScreen(glarea_, &screen_rect);
screenX = screen_rect.x + LogicalToDevice(viewX, device_scale_factor);
screenY = screen_rect.y + LogicalToDevice(viewY, device_scale_factor);
return true;
}
bool BrowserWindowOsrGtk::GetScreenInfo(CefRefPtr<CefBrowser> browser,
CefScreenInfo& screen_info) {
CEF_REQUIRE_UI_THREAD();
CefRect view_rect;
GetViewRect(browser, view_rect);
float device_scale_factor;
{
base::AutoLock lock_scope(lock_);
device_scale_factor = device_scale_factor_;
}
screen_info.device_scale_factor = device_scale_factor;
// The screen info rectangles are used by the renderer to create and position
// popups. Keep popups inside the view rectangle.
screen_info.rect = view_rect;
screen_info.available_rect = view_rect;
return true;
}
void BrowserWindowOsrGtk::OnPopupShow(CefRefPtr<CefBrowser> browser,
bool show) {
CEF_REQUIRE_UI_THREAD();
if (!show) {
renderer_.ClearPopupRects();
browser->GetHost()->Invalidate(PET_VIEW);
}
renderer_.OnPopupShow(browser, show);
}
void BrowserWindowOsrGtk::OnPopupSize(CefRefPtr<CefBrowser> browser,
const CefRect& rect) {
CEF_REQUIRE_UI_THREAD();
float device_scale_factor;
{
base::AutoLock lock_scope(lock_);
device_scale_factor = device_scale_factor_;
}
renderer_.OnPopupSize(browser, LogicalToDevice(rect, device_scale_factor));
}
void BrowserWindowOsrGtk::OnPaint(CefRefPtr<CefBrowser> browser,
CefRenderHandler::PaintElementType type,
const CefRenderHandler::RectList& dirtyRects,
const void* buffer,
int width,
int height) {
CEF_REQUIRE_UI_THREAD();
if (width <= 2 && height <= 2) {
// Ignore really small buffer sizes while the widget is starting up.
return;
}
if (painting_popup_) {
renderer_.OnPaint(browser, type, dirtyRects, buffer, width, height);
return;
}
if (!gl_enabled_)
EnableGL();
ScopedGLContext scoped_gl_context(glarea_, true);
if (!scoped_gl_context.IsValid())
return;
renderer_.OnPaint(browser, type, dirtyRects, buffer, width, height);
if (type == PET_VIEW && !renderer_.popup_rect().IsEmpty()) {
painting_popup_ = true;
browser->GetHost()->Invalidate(PET_POPUP);
painting_popup_ = false;
}
renderer_.Render();
}
void BrowserWindowOsrGtk::OnCursorChange(
CefRefPtr<CefBrowser> browser,
CefCursorHandle cursor,
CefRenderHandler::CursorType type,
const CefCursorInfo& custom_cursor_info) {
CEF_REQUIRE_UI_THREAD();
// Retrieve the X11 display shared with Chromium.
CHECK(xdisplay_ != 0);
ScopedGdkThreadsEnter scoped_gdk_threads;
// Retrieve the X11 window handle for the GTK widget.
::Window xwindow = GDK_WINDOW_XID(gtk_widget_get_window(glarea_));
// Set the cursor.
XDefineCursor(xdisplay_, xwindow, cursor);
}
bool BrowserWindowOsrGtk::StartDragging(
CefRefPtr<CefBrowser> browser,
CefRefPtr<CefDragData> drag_data,
CefRenderHandler::DragOperationsMask allowed_ops,
int x,
int y) {
CEF_REQUIRE_UI_THREAD();
if (!drag_data->HasImage()) {
LOG(ERROR) << "Drag image representation not available";
return false;
}
DragReset();
drag_data_ = drag_data;
ScopedGdkThreadsEnter scoped_gdk_threads;
// Begin drag.
if (drag_trigger_event_) {
LOG(ERROR) << "Dragging started, but last mouse event is missing";
DragReset();
return false;
}
drag_context_ = gtk_drag_begin(glarea_, drag_targets_, GDK_ACTION_COPY,
1, // left mouse button
drag_trigger_event_);
if (!drag_context_) {
LOG(ERROR) << "GTK drag begin failed";
DragReset();
return false;
}
g_object_ref(drag_context_);
// Send drag enter event.
CefMouseEvent ev;
ev.x = x;
ev.y = y;
ev.modifiers = EVENTFLAG_LEFT_MOUSE_BUTTON;
browser->GetHost()->DragTargetDragEnter(drag_data, ev, allowed_ops);
return true;
}
void BrowserWindowOsrGtk::UpdateDragCursor(
CefRefPtr<CefBrowser> browser,
CefRenderHandler::DragOperation operation) {
CEF_REQUIRE_UI_THREAD();
drag_operation_ = operation;
}
void BrowserWindowOsrGtk::OnImeCompositionRangeChanged(
CefRefPtr<CefBrowser> browser,
const CefRange& selection_range,
const CefRenderHandler::RectList& character_bounds) {
CEF_REQUIRE_UI_THREAD();
}
void BrowserWindowOsrGtk::UpdateAccessibilityTree(CefRefPtr<CefValue> value) {
CEF_REQUIRE_UI_THREAD();
}
void BrowserWindowOsrGtk::UpdateAccessibilityLocation(
CefRefPtr<CefValue> value) {
CEF_REQUIRE_UI_THREAD();
}
void BrowserWindowOsrGtk::Create(ClientWindowHandle parent_handle) {
REQUIRE_MAIN_THREAD();
DCHECK(!glarea_);
ScopedGdkThreadsEnter scoped_gdk_threads;
glarea_ = gtk_drawing_area_new();
DCHECK(glarea_);
GdkGLConfig* glconfig =
gdk_gl_config_new_by_mode(static_cast<GdkGLConfigMode>(
GDK_GL_MODE_RGB | GDK_GL_MODE_DEPTH | GDK_GL_MODE_DOUBLE));
DCHECK(glconfig);
gtk_widget_set_gl_capability(glarea_, glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE);
gtk_widget_set_can_focus(glarea_, TRUE);
g_signal_connect(G_OBJECT(glarea_), "size_allocate",
G_CALLBACK(&BrowserWindowOsrGtk::SizeAllocation), this);
gtk_widget_set_events(
glarea_, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
GDK_SCROLL_MASK | GDK_FOCUS_CHANGE_MASK);
g_signal_connect(G_OBJECT(glarea_), "button_press_event",
G_CALLBACK(&BrowserWindowOsrGtk::ClickEvent), this);
g_signal_connect(G_OBJECT(glarea_), "button_release_event",
G_CALLBACK(&BrowserWindowOsrGtk::ClickEvent), this);
g_signal_connect(G_OBJECT(glarea_), "key_press_event",
G_CALLBACK(&BrowserWindowOsrGtk::KeyEvent), this);
g_signal_connect(G_OBJECT(glarea_), "key_release_event",
G_CALLBACK(&BrowserWindowOsrGtk::KeyEvent), this);
g_signal_connect(G_OBJECT(glarea_), "enter_notify_event",
G_CALLBACK(&BrowserWindowOsrGtk::MoveEvent), this);
g_signal_connect(G_OBJECT(glarea_), "leave_notify_event",
G_CALLBACK(&BrowserWindowOsrGtk::MoveEvent), this);
g_signal_connect(G_OBJECT(glarea_), "motion_notify_event",
G_CALLBACK(&BrowserWindowOsrGtk::MoveEvent), this);
g_signal_connect(G_OBJECT(glarea_), "scroll_event",
G_CALLBACK(&BrowserWindowOsrGtk::ScrollEvent), this);
g_signal_connect(G_OBJECT(glarea_), "focus_in_event",
G_CALLBACK(&BrowserWindowOsrGtk::FocusEvent), this);
g_signal_connect(G_OBJECT(glarea_), "focus_out_event",
G_CALLBACK(&BrowserWindowOsrGtk::FocusEvent), this);
RegisterDragDrop();
gtk_container_add(GTK_CONTAINER(parent_handle), glarea_);
// Make the GlArea visible in the parent container.
gtk_widget_show_all(parent_handle);
InitializeXinput(xdisplay_);
if (IsTouchAvailable())
RegisterTouch();
}
// static
gint BrowserWindowOsrGtk::SizeAllocation(GtkWidget* widget,
GtkAllocation* allocation,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
if (self->browser_.get()) {
// Results in a call to GetViewRect().
self->browser_->GetHost()->WasResized();
}
return TRUE;
}
// static
gint BrowserWindowOsrGtk::ClickEvent(GtkWidget* widget,
GdkEventButton* event,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
if (!self->browser_.get())
return TRUE;
CefRefPtr<CefBrowserHost> host = self->browser_->GetHost();
CefBrowserHost::MouseButtonType button_type = MBT_LEFT;
switch (event->button) {
case 1:
break;
case 2:
button_type = MBT_MIDDLE;
break;
case 3:
button_type = MBT_RIGHT;
break;
default:
// Other mouse buttons are not handled here.
return FALSE;
}
float device_scale_factor;
{
base::AutoLock lock_scope(self->lock_);
device_scale_factor = self->device_scale_factor_;
}
CefMouseEvent mouse_event;
mouse_event.x = event->x;
mouse_event.y = event->y;
self->ApplyPopupOffset(mouse_event.x, mouse_event.y);
DeviceToLogical(mouse_event, device_scale_factor);
mouse_event.modifiers = GetCefStateModifiers(event->state);
bool mouse_up = (event->type == GDK_BUTTON_RELEASE);
if (!mouse_up) {
gtk_widget_grab_focus(widget);
}
int click_count = 1;
switch (event->type) {
case GDK_2BUTTON_PRESS:
click_count = 2;
break;
case GDK_3BUTTON_PRESS:
click_count = 3;
break;
default:
break;
}
host->SendMouseClickEvent(mouse_event, button_type, mouse_up, click_count);
// Save mouse event that can be a possible trigger for drag.
if (!self->drag_context_ && button_type == MBT_LEFT) {
if (self->drag_trigger_event_) {
gdk_event_free(self->drag_trigger_event_);
}
self->drag_trigger_event_ =
gdk_event_copy(reinterpret_cast<GdkEvent*>(event));
}
return TRUE;
}
// static
gint BrowserWindowOsrGtk::KeyEvent(GtkWidget* widget,
GdkEventKey* event,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
if (!self->browser_.get())
return TRUE;
CefRefPtr<CefBrowserHost> host = self->browser_->GetHost();
// Based on WebKeyboardEventBuilder::Build from
// content/browser/renderer_host/input/web_input_event_builders_gtk.cc.
CefKeyEvent key_event;
KeyboardCode windows_key_code = GdkEventToWindowsKeyCode(event);
key_event.windows_key_code =
GetWindowsKeyCodeWithoutLocation(windows_key_code);
key_event.native_key_code = event->hardware_keycode;
key_event.modifiers = GetCefStateModifiers(event->state);
if (event->keyval >= GDK_KP_Space && event->keyval <= GDK_KP_9)
key_event.modifiers |= EVENTFLAG_IS_KEY_PAD;
if (key_event.modifiers & EVENTFLAG_ALT_DOWN)
key_event.is_system_key = true;
if (windows_key_code == VKEY_RETURN) {
// We need to treat the enter key as a key press of character \r. This
// is apparently just how webkit handles it and what it expects.
key_event.unmodified_character = '\r';
} else {
// FIXME: fix for non BMP chars
key_event.unmodified_character =
static_cast<int>(gdk_keyval_to_unicode(event->keyval));
}
// If ctrl key is pressed down, then control character shall be input.
if (key_event.modifiers & EVENTFLAG_CONTROL_DOWN) {
key_event.character = GetControlCharacter(
windows_key_code, key_event.modifiers & EVENTFLAG_SHIFT_DOWN);
} else {
key_event.character = key_event.unmodified_character;
}
if (event->type == GDK_KEY_PRESS) {
key_event.type = KEYEVENT_RAWKEYDOWN;
host->SendKeyEvent(key_event);
key_event.type = KEYEVENT_CHAR;
host->SendKeyEvent(key_event);
} else {
key_event.type = KEYEVENT_KEYUP;
host->SendKeyEvent(key_event);
}
return TRUE;
}
// static
gint BrowserWindowOsrGtk::MoveEvent(GtkWidget* widget,
GdkEventMotion* event,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
if (!self->browser_.get())
return TRUE;
CefRefPtr<CefBrowserHost> host = self->browser_->GetHost();
gint x, y;
GdkModifierType state;
if (event->is_hint) {
gdk_window_get_pointer(event->window, &x, &y, &state);
} else {
x = (gint)event->x;
y = (gint)event->y;
state = (GdkModifierType)event->state;
if (x == 0 && y == 0) {
// Invalid coordinates of (0,0) appear from time to time in
// enter-notify-event and leave-notify-event events. Sending them may
// cause StartDragging to never get called, so just ignore these.
return TRUE;
}
}
float device_scale_factor;
{
base::AutoLock lock_scope(self->lock_);
device_scale_factor = self->device_scale_factor_;
}
CefMouseEvent mouse_event;
mouse_event.x = x;
mouse_event.y = y;
self->ApplyPopupOffset(mouse_event.x, mouse_event.y);
DeviceToLogical(mouse_event, device_scale_factor);
mouse_event.modifiers = GetCefStateModifiers(state);
bool mouse_leave = (event->type == GDK_LEAVE_NOTIFY);
host->SendMouseMoveEvent(mouse_event, mouse_leave);
// Save mouse event that can be a possible trigger for drag.
if (!self->drag_context_ &&
(mouse_event.modifiers & EVENTFLAG_LEFT_MOUSE_BUTTON)) {
if (self->drag_trigger_event_) {
gdk_event_free(self->drag_trigger_event_);
}
self->drag_trigger_event_ =
gdk_event_copy(reinterpret_cast<GdkEvent*>(event));
}
return TRUE;
}
// static
gint BrowserWindowOsrGtk::ScrollEvent(GtkWidget* widget,
GdkEventScroll* event,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
if (!self->browser_.get())
return TRUE;
CefRefPtr<CefBrowserHost> host = self->browser_->GetHost();
float device_scale_factor;
{
base::AutoLock lock_scope(self->lock_);
device_scale_factor = self->device_scale_factor_;
}
CefMouseEvent mouse_event;
mouse_event.x = event->x;
mouse_event.y = event->y;
self->ApplyPopupOffset(mouse_event.x, mouse_event.y);
DeviceToLogical(mouse_event, device_scale_factor);
mouse_event.modifiers = GetCefStateModifiers(event->state);
static const int scrollbarPixelsPerGtkTick = 40;
int deltaX = 0;
int deltaY = 0;
switch (event->direction) {
case GDK_SCROLL_UP:
deltaY = scrollbarPixelsPerGtkTick;
break;
case GDK_SCROLL_DOWN:
deltaY = -scrollbarPixelsPerGtkTick;
break;
case GDK_SCROLL_LEFT:
deltaX = scrollbarPixelsPerGtkTick;
break;
case GDK_SCROLL_RIGHT:
deltaX = -scrollbarPixelsPerGtkTick;
break;
}
host->SendMouseWheelEvent(mouse_event, deltaX, deltaY);
return TRUE;
}
// static
gint BrowserWindowOsrGtk::FocusEvent(GtkWidget* widget,
GdkEventFocus* event,
BrowserWindowOsrGtk* self) {
// May be called on the main thread and the UI thread.
if (self->browser_.get())
self->browser_->GetHost()->SendFocusEvent(event->in == TRUE);
return TRUE;
}
void BrowserWindowOsrGtk::TouchEvent(CefXIDeviceEvent event) {
if (!browser_.get())
return;
XIDeviceEvent* ev = static_cast<XIDeviceEvent*>(event);
CefTouchEvent cef_event;
switch (ev->evtype) {
case XI_TouchBegin:
cef_event.type = CEF_TET_PRESSED;
break;
case XI_TouchUpdate:
cef_event.type = CEF_TET_MOVED;
break;
case XI_TouchEnd:
cef_event.type = CEF_TET_RELEASED;
break;
default:
return;
}
cef_event.id = ev->detail;
cef_event.x = ev->event_x;
cef_event.y = ev->event_y;
cef_event.radius_x = 0;
cef_event.radius_y = 0;
cef_event.rotation_angle = 0;
cef_event.pressure = 0;
cef_event.modifiers = GetCefStateModifiers(ev->mods, ev->buttons);
browser_->GetHost()->SendTouchEvent(cef_event);
}
void BrowserWindowOsrGtk::RegisterTouch() {
GdkWindow* glwindow = gtk_widget_get_window(glarea_);
::Window xwindow = GDK_WINDOW_XID(glwindow);
uint32_t bitMask = XI_TouchBeginMask | XI_TouchUpdateMask | XI_TouchEndMask;
XIEventMask mask;
mask.deviceid = XIAllMasterDevices;
mask.mask = reinterpret_cast<unsigned char*>(&bitMask);
mask.mask_len = sizeof(bitMask);
XISelectEvents(xdisplay_, xwindow, &mask, 1);
}
// static
GdkFilterReturn BrowserWindowOsrGtk::EventFilter(GdkXEvent* gdk_xevent,
GdkEvent* event,
gpointer data) {
XEvent* xevent = static_cast<XEvent*>(gdk_xevent);
if (xevent->type == GenericEvent &&
xevent->xgeneric.extension == g_xinput_extension) {
XGetEventData(xevent->xcookie.display, &xevent->xcookie);
XIDeviceEvent* ev = static_cast<XIDeviceEvent*>(xevent->xcookie.data);
if (!ev)
return GDK_FILTER_REMOVE;
for (BrowserWindowOsrGtk* browser_window : g_browser_windows) {
GtkWidget* widget = browser_window->GetWindowHandle();
::Window xwindow = GDK_WINDOW_XID(gtk_widget_get_window(widget));
if (xwindow == ev->event) {
browser_window->TouchEvent(ev);
break;
}
}
XFreeEventData(xevent->xcookie.display, &xevent->xcookie);
// Even if we didn't find a consumer for this event, we will make sure Gdk
// doesn't attempt to process the event, since it can't parse GenericEvents
return GDK_FILTER_REMOVE;
}
return GDK_FILTER_CONTINUE;
}
// static
void BrowserWindowOsrGtk::InitializeXinput(XDisplay* xdisplay) {
static bool initialized = false;
if (initialized)
return;
initialized = true;
int firstEvent, firstError;
if (XQueryExtension(xdisplay, "XInputExtension", &g_xinput_extension,
&firstEvent, &firstError)) {
int major = 2, minor = 2;
// X Input Extension 2.2 is needed for multitouch events.
if (XIQueryVersion(xdisplay, &major, &minor) == Success) {
// Ideally we would add an event filter for each glarea_ window
// separately, but unfortunately GDK can't parse X GenericEvents
// which have the target window stored in different way compared
// to other X events. That is why we add this global event filter
// just once, and dispatch the event to correct BrowserWindowOsrGtk
// manually.
gdk_window_add_filter(nullptr, &BrowserWindowOsrGtk::EventFilter,
nullptr);
} else {
g_xinput_extension = -1;
}
}
}
bool BrowserWindowOsrGtk::IsOverPopupWidget(int x, int y) const {
const CefRect& rc = renderer_.popup_rect();
int popup_right = rc.x + rc.width;
int popup_bottom = rc.y + rc.height;
return (x >= rc.x) && (x < popup_right) && (y >= rc.y) && (y < popup_bottom);
}
int BrowserWindowOsrGtk::GetPopupXOffset() const {
return renderer_.original_popup_rect().x - renderer_.popup_rect().x;
}
int BrowserWindowOsrGtk::GetPopupYOffset() const {
return renderer_.original_popup_rect().y - renderer_.popup_rect().y;
}
void BrowserWindowOsrGtk::ApplyPopupOffset(int& x, int& y) const {
if (IsOverPopupWidget(x, y)) {
x += GetPopupXOffset();
y += GetPopupYOffset();
}
}
void BrowserWindowOsrGtk::EnableGL() {
CEF_REQUIRE_UI_THREAD();
if (gl_enabled_)
return;
ScopedGLContext scoped_gl_context(glarea_, false);
if (!scoped_gl_context.IsValid())
return;
renderer_.Initialize();
gl_enabled_ = true;
}
void BrowserWindowOsrGtk::DisableGL() {
CEF_REQUIRE_UI_THREAD();
if (!gl_enabled_)
return;
ScopedGLContext scoped_gl_context(glarea_, false);
if (!scoped_gl_context.IsValid())
return;
renderer_.Cleanup();
gl_enabled_ = false;
}
void BrowserWindowOsrGtk::RegisterDragDrop() {
REQUIRE_MAIN_THREAD();
ScopedGdkThreadsEnter scoped_gdk_threads;
// Succession of CEF d&d calls:
// 1. DragTargetDragEnter
// 2. DragTargetDragOver
// 3. DragTargetDragLeave - optional
// 4. DragSourceSystemDragEnded - optional, to cancel dragging
// 5. DragTargetDrop
// 6. DragSourceEndedAt
// 7. DragSourceSystemDragEnded
// Succession of GTK d&d events:
// 1. drag-begin-event, drag-data-get
// 2. drag-motion
// 3. drag-leave
// 4. drag-failed
// 5. drag-drop, drag-data-received
// 6. 7. drag-end-event
// Using gtk_drag_begin in StartDragging instead of calling
// gtk_drag_source_set here. Doing so because when using gtk_drag_source_set
// then StartDragging is being called very late, about ten DragMotion events
// after DragBegin, and drag icon can be set only when beginning drag.
// Default values for drag threshold are set to 8 pixels in both GTK and
// Chromium, but doesn't work as expected.
// --OFF--
// gtk_drag_source_set(glarea_, GDK_BUTTON1_MASK, NULL, 0, GDK_ACTION_COPY);
// Source widget events.
g_signal_connect(G_OBJECT(glarea_), "drag_begin",
G_CALLBACK(&BrowserWindowOsrGtk::DragBegin), this);
g_signal_connect(G_OBJECT(glarea_), "drag_data_get",
G_CALLBACK(&BrowserWindowOsrGtk::DragDataGet), this);
g_signal_connect(G_OBJECT(glarea_), "drag_end",
G_CALLBACK(&BrowserWindowOsrGtk::DragEnd), this);
// Destination widget and its events.
gtk_drag_dest_set(glarea_, (GtkDestDefaults)0, (GtkTargetEntry*)NULL, 0,
(GdkDragAction)GDK_ACTION_COPY);
g_signal_connect(G_OBJECT(glarea_), "drag_motion",
G_CALLBACK(&BrowserWindowOsrGtk::DragMotion), this);
g_signal_connect(G_OBJECT(glarea_), "drag_leave",
G_CALLBACK(&BrowserWindowOsrGtk::DragLeave), this);
g_signal_connect(G_OBJECT(glarea_), "drag_failed",
G_CALLBACK(&BrowserWindowOsrGtk::DragFailed), this);
g_signal_connect(G_OBJECT(glarea_), "drag_drop",
G_CALLBACK(&BrowserWindowOsrGtk::DragDrop), this);
g_signal_connect(G_OBJECT(glarea_), "drag_data_received",
G_CALLBACK(&BrowserWindowOsrGtk::DragDataReceived), this);
}
void BrowserWindowOsrGtk::UnregisterDragDrop() {
CEF_REQUIRE_UI_THREAD();
ScopedGdkThreadsEnter scoped_gdk_threads;
gtk_drag_dest_unset(glarea_);
// Drag events are unregistered in OnBeforeClose by calling
// g_signal_handlers_disconnect_matched.
}
void BrowserWindowOsrGtk::DragReset() {
CEF_REQUIRE_UI_THREAD();
if (drag_trigger_event_) {
gdk_event_free(drag_trigger_event_);
drag_trigger_event_ = nullptr;
}
drag_data_ = nullptr;
drag_operation_ = DRAG_OPERATION_NONE;
if (drag_context_) {
g_object_unref(drag_context_);
drag_context_ = nullptr;
}
drag_leave_ = false;
drag_drop_ = false;
}
// static
void BrowserWindowOsrGtk::DragBegin(GtkWidget* widget,
GdkDragContext* drag_context,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
// Load drag icon.
if (!self->drag_data_->HasImage()) {
LOG(ERROR) << "Failed to set drag icon, drag image not available";
return;
}
float device_scale_factor;
{
base::AutoLock lock_scope(self->lock_);
device_scale_factor = self->device_scale_factor_;
}
int pixel_width = 0;
int pixel_height = 0;
CefRefPtr<CefBinaryValue> image_binary =
self->drag_data_->GetImage()->GetAsPNG(device_scale_factor, true,
pixel_width, pixel_height);
if (!image_binary) {
LOG(ERROR) << "Failed to set drag icon, drag image error";
return;
}
size_t image_size = image_binary->GetSize();
guint8* image_buffer = (guint8*)malloc(image_size); // must free
image_binary->GetData((void*)image_buffer, image_size, 0);
GdkPixbufLoader* loader = nullptr; // must unref
GError* error = nullptr; // must free
GdkPixbuf* pixbuf = nullptr; // owned by loader
gboolean success = FALSE;
loader = gdk_pixbuf_loader_new_with_type("png", &error);
if (error == nullptr && loader) {
success = gdk_pixbuf_loader_write(loader, image_buffer, image_size, NULL);
if (success) {
success = gdk_pixbuf_loader_close(loader, NULL);
if (success) {
pixbuf = gdk_pixbuf_loader_get_pixbuf(loader);
if (pixbuf) {
CefPoint image_hotspot = self->drag_data_->GetImageHotspot();
int hotspot_x = image_hotspot.x;
int hotspot_y = image_hotspot.y;
gtk_drag_set_icon_pixbuf(drag_context, pixbuf, hotspot_x, hotspot_y);
} else {
LOG(ERROR) << "Failed to set drag icon, pixbuf error";
}
} else {
LOG(ERROR) << "Failed to set drag icon, loader close error";
}
} else {
LOG(ERROR) << "Failed to set drag icon, loader write error";
}
} else {
LOG(ERROR) << "Failed to set drag icon, loader creation error";
}
if (loader) {
g_object_unref(loader); // unref
}
if (error) {
g_error_free(error); // free
}
free(image_buffer); // free
}
// static
void BrowserWindowOsrGtk::DragDataGet(GtkWidget* widget,
GdkDragContext* drag_context,
GtkSelectionData* data,
guint info,
guint time,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
// No drag targets are set so this callback is never called.
}
// static
void BrowserWindowOsrGtk::DragEnd(GtkWidget* widget,
GdkDragContext* drag_context,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
if (self->browser_) {
// Sometimes there is DragEnd event generated without prior DragDrop.
// Maybe related to drag-leave bug described in comments in DragLeave.
if (!self->drag_drop_) {
// Real coordinates not available.
self->browser_->GetHost()->DragSourceEndedAt(-1, -1,
self->drag_operation_);
}
self->browser_->GetHost()->DragSourceSystemDragEnded();
}
self->DragReset();
}
// static
gboolean BrowserWindowOsrGtk::DragMotion(GtkWidget* widget,
GdkDragContext* drag_context,
gint x,
gint y,
guint time,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
float device_scale_factor;
{
base::AutoLock lock_scope(self->lock_);
device_scale_factor = self->device_scale_factor_;
}
// MoveEvent is never called during drag & drop, so must call
// SendMouseMoveEvent here.
CefMouseEvent mouse_event;
mouse_event.x = x;
mouse_event.y = y;
mouse_event.modifiers = EVENTFLAG_LEFT_MOUSE_BUTTON;
self->ApplyPopupOffset(mouse_event.x, mouse_event.y);
DeviceToLogical(mouse_event, device_scale_factor);
if (self->browser_) {
bool mouse_leave = self->drag_leave_;
self->browser_->GetHost()->SendMouseMoveEvent(mouse_event, mouse_leave);
}
// Mouse event.
CefMouseEvent ev;
ev.x = x;
ev.y = y;
ev.modifiers = EVENTFLAG_LEFT_MOUSE_BUTTON;
CefBrowserHost::DragOperationsMask allowed_ops =
GetDragOperationsMask(drag_context);
// Send drag enter event if needed.
if (self->drag_leave_ && self->browser_) {
self->browser_->GetHost()->DragTargetDragEnter(self->drag_data_, ev,
allowed_ops);
}
// Send drag over event.
if (self->browser_) {
self->browser_->GetHost()->DragTargetDragOver(ev, allowed_ops);
}
// Update GTK drag status.
if (widget == self->glarea_) {
gdk_drag_status(drag_context, GDK_ACTION_COPY, time);
if (self->drag_leave_) {
self->drag_leave_ = false;
}
return TRUE;
} else {
LOG(WARNING) << "Invalid drag destination widget";
gdk_drag_status(drag_context, (GdkDragAction)0, time);
return FALSE;
}
}
// static
void BrowserWindowOsrGtk::DragLeave(GtkWidget* widget,
GdkDragContext* drag_context,
guint time,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
// There is no drag-enter event in GTK. The first drag-motion event
// after drag-leave will be a drag-enter event.
// There seems to be a bug during GTK drop, drag-leave event is generated
// just before drag-drop. A solution is to call DragTargetDragEnter
// and DragTargetDragOver in DragDrop when drag_leave_ is true.
// Send drag leave event.
if (self->browser_) {
self->browser_->GetHost()->DragTargetDragLeave();
}
self->drag_leave_ = true;
}
// static
gboolean BrowserWindowOsrGtk::DragFailed(GtkWidget* widget,
GdkDragContext* drag_context,
GtkDragResult result,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
// Send drag end coordinates and system drag ended event.
if (self->browser_) {
// Real coordinates not available.
self->browser_->GetHost()->DragSourceEndedAt(-1, -1, self->drag_operation_);
self->browser_->GetHost()->DragSourceSystemDragEnded();
}
self->DragReset();
return TRUE;
}
// static
gboolean BrowserWindowOsrGtk::DragDrop(GtkWidget* widget,
GdkDragContext* drag_context,
gint x,
gint y,
guint time,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
// Finish GTK drag.
gtk_drag_finish(drag_context, TRUE, FALSE, time);
// Mouse event.
CefMouseEvent ev;
ev.x = x;
ev.y = y;
ev.modifiers = EVENTFLAG_LEFT_MOUSE_BUTTON;
CefBrowserHost::DragOperationsMask allowed_ops =
GetDragOperationsMask(drag_context);
// Send drag enter/over events if needed (read comment in DragLeave).
if (self->drag_leave_ && self->browser_) {
self->browser_->GetHost()->DragTargetDragEnter(self->drag_data_, ev,
allowed_ops);
self->browser_->GetHost()->DragTargetDragOver(ev, allowed_ops);
}
// Send drag drop event.
if (self->browser_) {
self->browser_->GetHost()->DragTargetDrop(ev);
}
// Send drag end coordinates.
if (self->browser_) {
self->browser_->GetHost()->DragSourceEndedAt(x, y, self->drag_operation_);
}
self->drag_drop_ = true;
return TRUE;
}
// static
void BrowserWindowOsrGtk::DragDataReceived(GtkWidget* widget,
GdkDragContext* drag_context,
gint x,
gint y,
GtkSelectionData* data,
guint info,
guint time,
BrowserWindowOsrGtk* self) {
CEF_REQUIRE_UI_THREAD();
// This callback is never called because DragDrop does not call
// gtk_drag_get_data, as only dragging inside web view is supported.
}
} // namespace client
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