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cef/tests/cefclient/browser/browser_window_osr_gtk.cc
reito 260dd0ca24 osr: Implement shared texture support (fixes #1006, fixes #2575) 
Adds support for the OnAcceleratedPaint callback. Verified to work
on macOS and Windows. Linux support is present but not implemented
for cefclient, so it is not verified to work.

To test:
Run `cefclient --off-screen-rendering-enabled --shared-texture-enabled`
2024-04-23 13:03:56 -04:00

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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-compat.h>
#include <gdk/gdkx.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#define XK_3270 // for XK_3270_BackTab
#include <X11/XF86keysym.h>
#include <X11/Xcursor/Xcursor.h>
#include <X11/keysym.h>
#include <algorithm>
#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 {
// 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;
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;
}
// 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 < std::size(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;
}
}
}
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), widget_(widget) {
gtk_gl_area_make_current(GTK_GL_AREA(widget));
is_valid_ = gtk_gl_area_get_error(GTK_GL_AREA(widget)) == nullptr;
if (swap_buffers_ && is_valid_) {
gtk_gl_area_queue_render(GTK_GL_AREA(widget_));
gtk_gl_area_attach_buffers(GTK_GL_AREA(widget));
}
}
virtual ~ScopedGLContext() {
if (swap_buffers_ && is_valid_) {
glFlush();
}
}
bool IsValid() const { return is_valid_; }
private:
bool swap_buffers_;
GtkWidget* const widget_;
bool is_valid_;
ScopedGdkThreadsEnter scoped_gdk_threads_;
};
} // namespace
BrowserWindowOsrGtk::BrowserWindowOsrGtk(BrowserWindow::Delegate* delegate,
bool with_controls,
const std::string& startup_url,
const OsrRendererSettings& settings)
: BrowserWindow(delegate),
xdisplay_(nullptr),
renderer_(settings),
gl_enabled_(false),
painting_popup_(false),
hidden_(false),
glarea_(nullptr),
drag_trigger_event_(nullptr),
drag_data_(nullptr),
drag_operation_(DRAG_OPERATION_NONE),
drag_context_(nullptr),
drag_targets_(gtk_target_list_new(nullptr, 0)),
drag_leave_(false),
drag_drop_(false),
device_scale_factor_(1.0f) {
client_handler_ =
new ClientHandlerOsr(this, this, with_controls, 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();
// Windowless rendering requires Alloy style.
DCHECK(delegate_->UseAlloyStyle());
// 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);
CefWindowHandle handle = GDK_WINDOW_XID(gtk_widget_get_window(window));
DCHECK(handle);
CefWindowInfo window_info;
window_info.SetAsWindowless(handle);
window_info.shared_texture_enabled =
renderer_.settings().shared_texture_enabled;
window_info.external_begin_frame_enabled =
renderer_.settings().external_begin_frame_enabled;
// Windowless rendering requires Alloy style.
DCHECK_EQ(CEF_RUNTIME_STYLE_ALLOY, window_info.runtime_style);
// 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);
// Windowless rendering requires Alloy style.
DCHECK_EQ(CEF_RUNTIME_STYLE_ALLOY, windowInfo.runtime_style);
windowInfo.shared_texture_enabled =
renderer_.settings().shared_texture_enabled;
windowInfo.external_begin_frame_enabled =
renderer_.settings().external_begin_frame_enabled;
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()->SetFocus(true);
}
void BrowserWindowOsrGtk::Hide() {
REQUIRE_MAIN_THREAD();
if (!browser_) {
return;
}
// Remove focus from the browser.
browser_->GetHost()->SetFocus(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();
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,
nullptr, nullptr, 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.
GtkAllocation allocation;
gtk_widget_get_allocation(glarea_, &allocation);
rect.width = DeviceToLogical(allocation.width, device_scale_factor);
if (rect.width == 0) {
rect.width = 1;
}
rect.height = DeviceToLogical(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_;
}
// Get the widget position in the window.
GtkAllocation allocation;
gtk_widget_get_allocation(glarea_, &allocation);
// Convert from view DIP coordinates to window (pixel) coordinates.
screenX = allocation.x + LogicalToDevice(viewX, device_scale_factor);
screenY = allocation.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,
cef_cursor_type_t 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;
}
ScopedGdkThreadsEnter scoped_gdk_threads;
DragReset();
drag_data_ = drag_data;
// 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_gl_area_new();
DCHECK(glarea_);
gtk_widget_set_can_focus(glarea_, TRUE);
gtk_gl_area_set_auto_render(GTK_GL_AREA(glarea_), FALSE);
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);
g_signal_connect(G_OBJECT(glarea_), "touch-event",
G_CALLBACK(&BrowserWindowOsrGtk::TouchEvent), this);
RegisterDragDrop();
gtk_widget_set_vexpand(glarea_, TRUE);
gtk_grid_attach(GTK_GRID(parent_handle), glarea_, 0, 3, 1, 1);
// Make the GlArea visible in the parent container.
gtk_widget_show_all(parent_handle);
}
// static
gint BrowserWindowOsrGtk::SizeAllocation(GtkWidget* widget,
GtkAllocation* allocation,
BrowserWindowOsrGtk* self) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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) {
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) {
REQUIRE_MAIN_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;
case GDK_SCROLL_SMOOTH:
NOTIMPLEMENTED();
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()->SetFocus(event->in == TRUE);
}
return TRUE;
}
// static
gboolean BrowserWindowOsrGtk::TouchEvent(GtkWidget* widget,
GdkEventTouch* event,
BrowserWindowOsrGtk* self) {
REQUIRE_MAIN_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_;
}
CefTouchEvent touch_event;
switch (event->type) {
case GDK_TOUCH_BEGIN:
touch_event.type = CEF_TET_PRESSED;
break;
case GDK_TOUCH_UPDATE:
touch_event.type = CEF_TET_MOVED;
break;
case GDK_TOUCH_END:
touch_event.type = CEF_TET_RELEASED;
break;
default:
return TRUE;
}
touch_event.x = event->x;
touch_event.y = event->y;
touch_event.radius_x = 0;
touch_event.radius_y = 0;
touch_event.rotation_angle = 0;
touch_event.pressure = 0;
DeviceToLogical(touch_event, device_scale_factor);
touch_event.modifiers = GetCefStateModifiers(event->state);
host->SendTouchEvent(touch_event);
return TRUE;
}
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, nullptr, 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*)nullptr, 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() {
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() {
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) {
// 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;
}
ScopedGdkThreadsEnter scoped_gdk_threads;
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, nullptr);
if (success) {
success = gdk_pixbuf_loader_close(loader, nullptr);
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) {
REQUIRE_MAIN_THREAD();
// No drag targets are set so this callback is never called.
}
// static
void BrowserWindowOsrGtk::DragEnd(GtkWidget* widget,
GdkDragContext* drag_context,
BrowserWindowOsrGtk* self) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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) {
REQUIRE_MAIN_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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