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SDL/src/video/emscripten/SDL_emscriptenevents.c

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Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/*
Simple DirectMedia Layer
Updated copyright for 2017
2017-01-02 02:33:28 +00:00
Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_EMSCRIPTEN
#include <emscripten/html5.h>
#include "../../events/SDL_events_c.h"
#include "../../events/SDL_keyboard_c.h"
#include "../../events/SDL_touch_c.h"
#include "SDL_emscriptenevents.h"
#include "SDL_emscriptenvideo.h"
#include "SDL_hints.h"
#define FULLSCREEN_MASK ( SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN )
/*
.keyCode to scancode
https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent
https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/keyCode
*/
static const SDL_Scancode emscripten_scancode_table[] = {
/* 0 */ SDL_SCANCODE_UNKNOWN,
/* 1 */ SDL_SCANCODE_UNKNOWN,
/* 2 */ SDL_SCANCODE_UNKNOWN,
/* 3 */ SDL_SCANCODE_CANCEL,
/* 4 */ SDL_SCANCODE_UNKNOWN,
/* 5 */ SDL_SCANCODE_UNKNOWN,
/* 6 */ SDL_SCANCODE_HELP,
/* 7 */ SDL_SCANCODE_UNKNOWN,
/* 8 */ SDL_SCANCODE_BACKSPACE,
/* 9 */ SDL_SCANCODE_TAB,
/* 10 */ SDL_SCANCODE_UNKNOWN,
/* 11 */ SDL_SCANCODE_UNKNOWN,
/* 12 */ SDL_SCANCODE_UNKNOWN,
/* 13 */ SDL_SCANCODE_RETURN,
/* 14 */ SDL_SCANCODE_UNKNOWN,
/* 15 */ SDL_SCANCODE_UNKNOWN,
/* 16 */ SDL_SCANCODE_LSHIFT,
/* 17 */ SDL_SCANCODE_LCTRL,
/* 18 */ SDL_SCANCODE_LALT,
/* 19 */ SDL_SCANCODE_PAUSE,
/* 20 */ SDL_SCANCODE_CAPSLOCK,
/* 21 */ SDL_SCANCODE_UNKNOWN,
/* 22 */ SDL_SCANCODE_UNKNOWN,
/* 23 */ SDL_SCANCODE_UNKNOWN,
/* 24 */ SDL_SCANCODE_UNKNOWN,
/* 25 */ SDL_SCANCODE_UNKNOWN,
/* 26 */ SDL_SCANCODE_UNKNOWN,
/* 27 */ SDL_SCANCODE_ESCAPE,
/* 28 */ SDL_SCANCODE_UNKNOWN,
/* 29 */ SDL_SCANCODE_UNKNOWN,
/* 30 */ SDL_SCANCODE_UNKNOWN,
/* 31 */ SDL_SCANCODE_UNKNOWN,
/* 32 */ SDL_SCANCODE_SPACE,
/* 33 */ SDL_SCANCODE_PAGEUP,
/* 34 */ SDL_SCANCODE_PAGEDOWN,
/* 35 */ SDL_SCANCODE_END,
/* 36 */ SDL_SCANCODE_HOME,
/* 37 */ SDL_SCANCODE_LEFT,
/* 38 */ SDL_SCANCODE_UP,
/* 39 */ SDL_SCANCODE_RIGHT,
/* 40 */ SDL_SCANCODE_DOWN,
/* 41 */ SDL_SCANCODE_UNKNOWN,
/* 42 */ SDL_SCANCODE_UNKNOWN,
/* 43 */ SDL_SCANCODE_UNKNOWN,
/* 44 */ SDL_SCANCODE_UNKNOWN,
/* 45 */ SDL_SCANCODE_INSERT,
/* 46 */ SDL_SCANCODE_DELETE,
/* 47 */ SDL_SCANCODE_UNKNOWN,
/* 48 */ SDL_SCANCODE_0,
/* 49 */ SDL_SCANCODE_1,
/* 50 */ SDL_SCANCODE_2,
/* 51 */ SDL_SCANCODE_3,
/* 52 */ SDL_SCANCODE_4,
/* 53 */ SDL_SCANCODE_5,
/* 54 */ SDL_SCANCODE_6,
/* 55 */ SDL_SCANCODE_7,
/* 56 */ SDL_SCANCODE_8,
/* 57 */ SDL_SCANCODE_9,
/* 58 */ SDL_SCANCODE_UNKNOWN,
/* 59 */ SDL_SCANCODE_SEMICOLON,
/* 60 */ SDL_SCANCODE_UNKNOWN,
/* 61 */ SDL_SCANCODE_EQUALS,
/* 62 */ SDL_SCANCODE_UNKNOWN,
/* 63 */ SDL_SCANCODE_UNKNOWN,
/* 64 */ SDL_SCANCODE_UNKNOWN,
/* 65 */ SDL_SCANCODE_A,
/* 66 */ SDL_SCANCODE_B,
/* 67 */ SDL_SCANCODE_C,
/* 68 */ SDL_SCANCODE_D,
/* 69 */ SDL_SCANCODE_E,
/* 70 */ SDL_SCANCODE_F,
/* 71 */ SDL_SCANCODE_G,
/* 72 */ SDL_SCANCODE_H,
/* 73 */ SDL_SCANCODE_I,
/* 74 */ SDL_SCANCODE_J,
/* 75 */ SDL_SCANCODE_K,
/* 76 */ SDL_SCANCODE_L,
/* 77 */ SDL_SCANCODE_M,
/* 78 */ SDL_SCANCODE_N,
/* 79 */ SDL_SCANCODE_O,
/* 80 */ SDL_SCANCODE_P,
/* 81 */ SDL_SCANCODE_Q,
/* 82 */ SDL_SCANCODE_R,
/* 83 */ SDL_SCANCODE_S,
/* 84 */ SDL_SCANCODE_T,
/* 85 */ SDL_SCANCODE_U,
/* 86 */ SDL_SCANCODE_V,
/* 87 */ SDL_SCANCODE_W,
/* 88 */ SDL_SCANCODE_X,
/* 89 */ SDL_SCANCODE_Y,
/* 90 */ SDL_SCANCODE_Z,
/* 91 */ SDL_SCANCODE_LGUI,
/* 92 */ SDL_SCANCODE_UNKNOWN,
/* 93 */ SDL_SCANCODE_APPLICATION,
/* 94 */ SDL_SCANCODE_UNKNOWN,
/* 95 */ SDL_SCANCODE_UNKNOWN,
/* 96 */ SDL_SCANCODE_KP_0,
/* 97 */ SDL_SCANCODE_KP_1,
/* 98 */ SDL_SCANCODE_KP_2,
/* 99 */ SDL_SCANCODE_KP_3,
/* 100 */ SDL_SCANCODE_KP_4,
/* 101 */ SDL_SCANCODE_KP_5,
/* 102 */ SDL_SCANCODE_KP_6,
/* 103 */ SDL_SCANCODE_KP_7,
/* 104 */ SDL_SCANCODE_KP_8,
/* 105 */ SDL_SCANCODE_KP_9,
/* 106 */ SDL_SCANCODE_KP_MULTIPLY,
/* 107 */ SDL_SCANCODE_KP_PLUS,
/* 108 */ SDL_SCANCODE_UNKNOWN,
/* 109 */ SDL_SCANCODE_KP_MINUS,
/* 110 */ SDL_SCANCODE_KP_PERIOD,
/* 111 */ SDL_SCANCODE_KP_DIVIDE,
/* 112 */ SDL_SCANCODE_F1,
/* 113 */ SDL_SCANCODE_F2,
/* 114 */ SDL_SCANCODE_F3,
/* 115 */ SDL_SCANCODE_F4,
/* 116 */ SDL_SCANCODE_F5,
/* 117 */ SDL_SCANCODE_F6,
/* 118 */ SDL_SCANCODE_F7,
/* 119 */ SDL_SCANCODE_F8,
/* 120 */ SDL_SCANCODE_F9,
/* 121 */ SDL_SCANCODE_F10,
/* 122 */ SDL_SCANCODE_F11,
/* 123 */ SDL_SCANCODE_F12,
/* 124 */ SDL_SCANCODE_F13,
/* 125 */ SDL_SCANCODE_F14,
/* 126 */ SDL_SCANCODE_F15,
/* 127 */ SDL_SCANCODE_F16,
/* 128 */ SDL_SCANCODE_F17,
/* 129 */ SDL_SCANCODE_F18,
/* 130 */ SDL_SCANCODE_F19,
/* 131 */ SDL_SCANCODE_F20,
/* 132 */ SDL_SCANCODE_F21,
/* 133 */ SDL_SCANCODE_F22,
/* 134 */ SDL_SCANCODE_F23,
/* 135 */ SDL_SCANCODE_F24,
/* 136 */ SDL_SCANCODE_UNKNOWN,
/* 137 */ SDL_SCANCODE_UNKNOWN,
/* 138 */ SDL_SCANCODE_UNKNOWN,
/* 139 */ SDL_SCANCODE_UNKNOWN,
/* 140 */ SDL_SCANCODE_UNKNOWN,
/* 141 */ SDL_SCANCODE_UNKNOWN,
/* 142 */ SDL_SCANCODE_UNKNOWN,
/* 143 */ SDL_SCANCODE_UNKNOWN,
/* 144 */ SDL_SCANCODE_NUMLOCKCLEAR,
/* 145 */ SDL_SCANCODE_SCROLLLOCK,
/* 146 */ SDL_SCANCODE_UNKNOWN,
/* 147 */ SDL_SCANCODE_UNKNOWN,
/* 148 */ SDL_SCANCODE_UNKNOWN,
/* 149 */ SDL_SCANCODE_UNKNOWN,
/* 150 */ SDL_SCANCODE_UNKNOWN,
/* 151 */ SDL_SCANCODE_UNKNOWN,
/* 152 */ SDL_SCANCODE_UNKNOWN,
/* 153 */ SDL_SCANCODE_UNKNOWN,
/* 154 */ SDL_SCANCODE_UNKNOWN,
/* 155 */ SDL_SCANCODE_UNKNOWN,
/* 156 */ SDL_SCANCODE_UNKNOWN,
/* 157 */ SDL_SCANCODE_UNKNOWN,
/* 158 */ SDL_SCANCODE_UNKNOWN,
/* 159 */ SDL_SCANCODE_UNKNOWN,
/* 160 */ SDL_SCANCODE_UNKNOWN,
/* 161 */ SDL_SCANCODE_UNKNOWN,
/* 162 */ SDL_SCANCODE_UNKNOWN,
/* 163 */ SDL_SCANCODE_UNKNOWN,
/* 164 */ SDL_SCANCODE_UNKNOWN,
/* 165 */ SDL_SCANCODE_UNKNOWN,
/* 166 */ SDL_SCANCODE_UNKNOWN,
/* 167 */ SDL_SCANCODE_UNKNOWN,
/* 168 */ SDL_SCANCODE_UNKNOWN,
/* 169 */ SDL_SCANCODE_UNKNOWN,
/* 170 */ SDL_SCANCODE_UNKNOWN,
/* 171 */ SDL_SCANCODE_UNKNOWN,
/* 172 */ SDL_SCANCODE_UNKNOWN,
/* 173 */ SDL_SCANCODE_MINUS, /*FX*/
Add mapping for media keys
2016-09-13 07:04:00 +00:00
/* 174 */ SDL_SCANCODE_VOLUMEDOWN, /*IE, Chrome*/
/* 175 */ SDL_SCANCODE_VOLUMEUP, /*IE, Chrome*/
/* 176 */ SDL_SCANCODE_AUDIONEXT, /*IE, Chrome*/
/* 177 */ SDL_SCANCODE_AUDIOPREV, /*IE, Chrome*/
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/* 178 */ SDL_SCANCODE_UNKNOWN,
Add mapping for media keys
2016-09-13 07:04:00 +00:00
/* 179 */ SDL_SCANCODE_AUDIOPLAY, /*IE, Chrome*/
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/* 180 */ SDL_SCANCODE_UNKNOWN,
Add mapping for media keys
2016-09-13 07:04:00 +00:00
/* 181 */ SDL_SCANCODE_AUDIOMUTE, /*FX*/
/* 182 */ SDL_SCANCODE_VOLUMEDOWN, /*FX*/
/* 183 */ SDL_SCANCODE_VOLUMEUP, /*FX*/
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/* 184 */ SDL_SCANCODE_UNKNOWN,
/* 185 */ SDL_SCANCODE_UNKNOWN,
/* 186 */ SDL_SCANCODE_SEMICOLON, /*IE, Chrome, D3E legacy*/
/* 187 */ SDL_SCANCODE_EQUALS, /*IE, Chrome, D3E legacy*/
/* 188 */ SDL_SCANCODE_COMMA,
/* 189 */ SDL_SCANCODE_MINUS, /*IE, Chrome, D3E legacy*/
/* 190 */ SDL_SCANCODE_PERIOD,
/* 191 */ SDL_SCANCODE_SLASH,
/* 192 */ SDL_SCANCODE_GRAVE, /*FX, D3E legacy (SDL_SCANCODE_APOSTROPHE in IE/Chrome)*/
/* 193 */ SDL_SCANCODE_UNKNOWN,
/* 194 */ SDL_SCANCODE_UNKNOWN,
/* 195 */ SDL_SCANCODE_UNKNOWN,
/* 196 */ SDL_SCANCODE_UNKNOWN,
/* 197 */ SDL_SCANCODE_UNKNOWN,
/* 198 */ SDL_SCANCODE_UNKNOWN,
/* 199 */ SDL_SCANCODE_UNKNOWN,
/* 200 */ SDL_SCANCODE_UNKNOWN,
/* 201 */ SDL_SCANCODE_UNKNOWN,
/* 202 */ SDL_SCANCODE_UNKNOWN,
/* 203 */ SDL_SCANCODE_UNKNOWN,
/* 204 */ SDL_SCANCODE_UNKNOWN,
/* 205 */ SDL_SCANCODE_UNKNOWN,
/* 206 */ SDL_SCANCODE_UNKNOWN,
/* 207 */ SDL_SCANCODE_UNKNOWN,
/* 208 */ SDL_SCANCODE_UNKNOWN,
/* 209 */ SDL_SCANCODE_UNKNOWN,
/* 210 */ SDL_SCANCODE_UNKNOWN,
/* 211 */ SDL_SCANCODE_UNKNOWN,
/* 212 */ SDL_SCANCODE_UNKNOWN,
/* 213 */ SDL_SCANCODE_UNKNOWN,
/* 214 */ SDL_SCANCODE_UNKNOWN,
/* 215 */ SDL_SCANCODE_UNKNOWN,
/* 216 */ SDL_SCANCODE_UNKNOWN,
/* 217 */ SDL_SCANCODE_UNKNOWN,
/* 218 */ SDL_SCANCODE_UNKNOWN,
/* 219 */ SDL_SCANCODE_LEFTBRACKET,
/* 220 */ SDL_SCANCODE_BACKSLASH,
/* 221 */ SDL_SCANCODE_RIGHTBRACKET,
/* 222 */ SDL_SCANCODE_APOSTROPHE, /*FX, D3E legacy*/
};
/* "borrowed" from SDL_windowsevents.c */
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static int
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_ConvertUTF32toUTF8(Uint32 codepoint, char * text)
{
if (codepoint <= 0x7F) {
text[0] = (char) codepoint;
text[1] = '\0';
} else if (codepoint <= 0x7FF) {
text[0] = 0xC0 | (char) ((codepoint >> 6) & 0x1F);
text[1] = 0x80 | (char) (codepoint & 0x3F);
text[2] = '\0';
} else if (codepoint <= 0xFFFF) {
text[0] = 0xE0 | (char) ((codepoint >> 12) & 0x0F);
text[1] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
text[2] = 0x80 | (char) (codepoint & 0x3F);
text[3] = '\0';
} else if (codepoint <= 0x10FFFF) {
text[0] = 0xF0 | (char) ((codepoint >> 18) & 0x0F);
text[1] = 0x80 | (char) ((codepoint >> 12) & 0x3F);
text[2] = 0x80 | (char) ((codepoint >> 6) & 0x3F);
text[3] = 0x80 | (char) (codepoint & 0x3F);
text[4] = '\0';
} else {
return SDL_FALSE;
}
return SDL_TRUE;
}
emscripten: keep track of pointer lock losses and maybe regrab pointer later. If an Emscripten app is in relative mouse mode and the user presses Escape (or whatever is appropriate), then the pointer lock is broken by the browser. This keeps track of those losses, and next time the user presses a mouse button down on the canvas, if the app is still meant to be in relative mouse mode, we will attempt to regrab the pointer. This makes it much more seamless for things like first-person shooters, and the app doesn't need any manual intervention.
2017-04-20 17:00:54 +00:00
static EM_BOOL
Emscripten_HandlePointerLockChange(int eventType, const EmscriptenPointerlockChangeEvent *changeEvent, void *userData)
{
SDL_WindowData *window_data = (SDL_WindowData *) userData;
/* keep track of lock losses, so we can regrab if/when appropriate. */
window_data->has_pointer_lock = changeEvent->isActive;
return 0;
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleMouseMove(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
{
SDL_WindowData *window_data = userData;
emscripten: keep track of pointer lock losses and maybe regrab pointer later. If an Emscripten app is in relative mouse mode and the user presses Escape (or whatever is appropriate), then the pointer lock is broken by the browser. This keeps track of those losses, and next time the user presses a mouse button down on the canvas, if the app is still meant to be in relative mouse mode, we will attempt to regrab the pointer. This makes it much more seamless for things like first-person shooters, and the app doesn't need any manual intervention.
2017-04-20 17:00:54 +00:00
const int isPointerLocked = window_data->has_pointer_lock;
Accumulate subpixel mouse motion so motion is not lost. Previously when the canvas was scaled up and the pointer was locked, motion corresponding to less than one pixel was lost. Therefore, slow mouse motion resulted in no motion. This fixes that.
2016-09-13 07:03:45 +00:00
int mx, my;
static double residualx = 0, residualy = 0;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Accumulate subpixel mouse motion so motion is not lost. Previously when the canvas was scaled up and the pointer was locked, motion corresponding to less than one pixel was lost. Therefore, slow mouse motion resulted in no motion. This fixes that.
2016-09-13 07:03:45 +00:00
/* rescale (in case canvas is being scaled)*/
double client_w, client_h, xscale, yscale;
emscripten_get_element_css_size(NULL, &client_w, &client_h);
Mouse events use CSS coordinates, so don't scale by pixel_ratio
2016-09-13 07:03:46 +00:00
xscale = window_data->window->w / client_w;
yscale = window_data->window->h / client_h;
Accumulate subpixel mouse motion so motion is not lost. Previously when the canvas was scaled up and the pointer was locked, motion corresponding to less than one pixel was lost. Therefore, slow mouse motion resulted in no motion. This fixes that.
2016-09-13 07:03:45 +00:00
Fix of mouse events in browser without pointer locks
2016-09-13 07:03:44 +00:00
if (isPointerLocked) {
Accumulate subpixel mouse motion so motion is not lost. Previously when the canvas was scaled up and the pointer was locked, motion corresponding to less than one pixel was lost. Therefore, slow mouse motion resulted in no motion. This fixes that.
2016-09-13 07:03:45 +00:00
residualx += mouseEvent->movementX * xscale;
residualy += mouseEvent->movementY * yscale;
/* Let slow sub-pixel motion accumulate. Don't lose it. */
mx = residualx;
residualx -= mx;
my = residualy;
residualy -= my;
} else {
mx = mouseEvent->canvasX * xscale;
my = mouseEvent->canvasY * yscale;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
Fix of mouse events in browser without pointer locks
2016-09-13 07:03:44 +00:00
SDL_SendMouseMotion(window_data->window, 0, isPointerLocked, mx, my);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
return 0;
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleMouseButton(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
{
SDL_WindowData *window_data = userData;
Emscripten: Fixed handling of deactivated mouse events. SDL_GetEventState() was called with a button state instead of an event type.
2016-11-17 23:05:28 +00:00
Uint8 sdl_button;
Uint8 sdl_button_state;
SDL_EventType sdl_event_type;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
switch (mouseEvent->button) {
case 0:
sdl_button = SDL_BUTTON_LEFT;
break;
case 1:
sdl_button = SDL_BUTTON_MIDDLE;
break;
case 2:
sdl_button = SDL_BUTTON_RIGHT;
break;
default:
return 0;
}
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
Emscripten: Fixed handling of deactivated mouse events. SDL_GetEventState() was called with a button state instead of an event type.
2016-11-17 23:05:28 +00:00
if (eventType == EMSCRIPTEN_EVENT_MOUSEDOWN) {
emscripten: keep track of pointer lock losses and maybe regrab pointer later. If an Emscripten app is in relative mouse mode and the user presses Escape (or whatever is appropriate), then the pointer lock is broken by the browser. This keeps track of those losses, and next time the user presses a mouse button down on the canvas, if the app is still meant to be in relative mouse mode, we will attempt to regrab the pointer. This makes it much more seamless for things like first-person shooters, and the app doesn't need any manual intervention.
2017-04-20 17:00:54 +00:00
if (SDL_GetMouse()->relative_mode && !window_data->has_pointer_lock) {
emscripten_request_pointerlock(NULL, 0); /* try to regrab lost pointer lock. */
}
Emscripten: Fixed handling of deactivated mouse events. SDL_GetEventState() was called with a button state instead of an event type.
2016-11-17 23:05:28 +00:00
sdl_button_state = SDL_PRESSED;
sdl_event_type = SDL_MOUSEBUTTONDOWN;
} else {
sdl_button_state = SDL_RELEASED;
sdl_event_type = SDL_MOUSEBUTTONUP;
}
SDL_SendMouseButton(window_data->window, 0, sdl_button_state, sdl_button);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
return SDL_GetEventState(sdl_event_type) == SDL_ENABLE;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleMouseFocus(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
{
SDL_WindowData *window_data = userData;
use SDL_SetMouseFocus
2016-09-13 07:03:36 +00:00
send mouse move on enter/leave
2016-09-13 07:03:39 +00:00
int mx = mouseEvent->canvasX, my = mouseEvent->canvasY;
emscripten: keep track of pointer lock losses and maybe regrab pointer later. If an Emscripten app is in relative mouse mode and the user presses Escape (or whatever is appropriate), then the pointer lock is broken by the browser. This keeps track of those losses, and next time the user presses a mouse button down on the canvas, if the app is still meant to be in relative mouse mode, we will attempt to regrab the pointer. This makes it much more seamless for things like first-person shooters, and the app doesn't need any manual intervention.
2017-04-20 17:00:54 +00:00
const int isPointerLocked = window_data->has_pointer_lock;
send mouse move on enter/leave
2016-09-13 07:03:39 +00:00
Fix of mouse events in browser without pointer locks
2016-09-13 07:03:44 +00:00
if (!isPointerLocked) {
send mouse move on enter/leave
2016-09-13 07:03:39 +00:00
/* rescale (in case canvas is being scaled)*/
double client_w, client_h;
emscripten_get_element_css_size(NULL, &client_w, &client_h);
Mouse events use CSS coordinates, so don't scale by pixel_ratio
2016-09-13 07:03:46 +00:00
mx = mx * (window_data->window->w / client_w);
my = my * (window_data->window->h / client_h);
Fix of mouse events in browser without pointer locks
2016-09-13 07:03:44 +00:00
SDL_SendMouseMotion(window_data->window, 0, isPointerLocked, mx, my);
send mouse move on enter/leave
2016-09-13 07:03:39 +00:00
}
use SDL_SetMouseFocus
2016-09-13 07:03:36 +00:00
SDL_SetMouseFocus(eventType == EMSCRIPTEN_EVENT_MOUSEENTER ? window_data->window : NULL);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
return SDL_GetEventState(SDL_WINDOWEVENT) == SDL_ENABLE;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleWheel(int eventType, const EmscriptenWheelEvent *wheelEvent, void *userData)
{
SDL_WindowData *window_data = userData;
SDL_SendMouseWheel(window_data->window, 0, wheelEvent->deltaX, -wheelEvent->deltaY, SDL_MOUSEWHEEL_NORMAL);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
return SDL_GetEventState(SDL_MOUSEWHEEL) == SDL_ENABLE;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleFocus(int eventType, const EmscriptenFocusEvent *wheelEvent, void *userData)
{
SDL_WindowData *window_data = userData;
Unpress all keys on blur to avoid stuck keys
2016-09-13 07:03:49 +00:00
/* If the user switches away while keys are pressed (such as
* via Alt+Tab), key release events won't be received. */
if (eventType == EMSCRIPTEN_EVENT_BLUR) {
SDL_ResetKeyboard();
}
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
SDL_SendWindowEvent(window_data->window, eventType == EMSCRIPTEN_EVENT_FOCUS ? SDL_WINDOWEVENT_FOCUS_GAINED : SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
return SDL_GetEventState(SDL_WINDOWEVENT) == SDL_ENABLE;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleTouch(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData)
{
SDL_WindowData *window_data = userData;
int i;
use css size for touch normalisation
2016-09-13 06:58:08 +00:00
double client_w, client_h;
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
int preventDefault = 0;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
SDL_TouchID deviceId = 1;
if (SDL_AddTouch(deviceId, "") < 0) {
return 0;
}
use css size for touch normalisation
2016-09-13 06:58:08 +00:00
emscripten_get_element_css_size(NULL, &client_w, &client_h);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
for (i = 0; i < touchEvent->numTouches; i++) {
SDL_FingerID id;
float x, y;
Emscripten: fixed incorrect conversion of touch motion events to mouse motion events
2017-05-24 13:04:25 +00:00
int mx, my;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
if (!touchEvent->touches[i].isChanged)
continue;
id = touchEvent->touches[i].identifier;
use css size for touch normalisation
2016-09-13 06:58:08 +00:00
x = touchEvent->touches[i].canvasX / client_w;
y = touchEvent->touches[i].canvasY / client_h;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten: fixed incorrect conversion of touch motion events to mouse motion events
2017-05-24 13:04:25 +00:00
mx = x * window_data->window->w;
my = y * window_data->window->h;
emscripten: send fake mouse events for touches, like other targets do. (This really should be handled at the higher level and not in the individual targets, but this fixes the immediate bug.)
2016-08-12 23:59:00 +00:00
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) {
if (!window_data->finger_touching) {
window_data->finger_touching = SDL_TRUE;
window_data->first_finger = id;
Emscripten: fixed incorrect conversion of touch motion events to mouse motion events
2017-05-24 13:04:25 +00:00
SDL_SendMouseMotion(window_data->window, SDL_TOUCH_MOUSEID, 0, mx, my);
emscripten: send fake mouse events for touches, like other targets do. (This really should be handled at the higher level and not in the individual targets, but this fixes the immediate bug.)
2016-08-12 23:59:00 +00:00
SDL_SendMouseButton(window_data->window, SDL_TOUCH_MOUSEID, SDL_PRESSED, SDL_BUTTON_LEFT);
}
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
SDL_SendTouch(deviceId, id, SDL_TRUE, x, y, 1.0f);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
if (!preventDefault && SDL_GetEventState(SDL_FINGERDOWN) == SDL_ENABLE) {
preventDefault = 1;
}
emscripten: send fake mouse events for touches, like other targets do. (This really should be handled at the higher level and not in the individual targets, but this fixes the immediate bug.)
2016-08-12 23:59:00 +00:00
} else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) {
if ((window_data->finger_touching) && (window_data->first_finger == id)) {
Emscripten: fixed incorrect conversion of touch motion events to mouse motion events
2017-05-24 13:04:25 +00:00
SDL_SendMouseMotion(window_data->window, SDL_TOUCH_MOUSEID, 0, mx, my);
emscripten: send fake mouse events for touches, like other targets do. (This really should be handled at the higher level and not in the individual targets, but this fixes the immediate bug.)
2016-08-12 23:59:00 +00:00
}
SDL_SendTouchMotion(deviceId, id, x, y, 1.0f);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
if (!preventDefault && SDL_GetEventState(SDL_FINGERMOTION) == SDL_ENABLE) {
preventDefault = 1;
}
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
} else {
emscripten: send fake mouse events for touches, like other targets do. (This really should be handled at the higher level and not in the individual targets, but this fixes the immediate bug.)
2016-08-12 23:59:00 +00:00
if ((window_data->finger_touching) && (window_data->first_finger == id)) {
SDL_SendMouseButton(window_data->window, SDL_TOUCH_MOUSEID, SDL_RELEASED, SDL_BUTTON_LEFT);
window_data->finger_touching = SDL_FALSE;
}
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
SDL_SendTouch(deviceId, id, SDL_FALSE, x, y, 1.0f);
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
if (!preventDefault && SDL_GetEventState(SDL_FINGERUP) == SDL_ENABLE) {
preventDefault = 1;
}
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
}
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
return preventDefault;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleKey(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData)
{
Uint32 scancode;
/* .keyCode is deprecated, but still the most reliable way to get keys */
if (keyEvent->keyCode < SDL_arraysize(emscripten_scancode_table)) {
scancode = emscripten_scancode_table[keyEvent->keyCode];
if (scancode != SDL_SCANCODE_UNKNOWN) {
if (keyEvent->location == DOM_KEY_LOCATION_RIGHT) {
switch (scancode) {
case SDL_SCANCODE_LSHIFT:
scancode = SDL_SCANCODE_RSHIFT;
break;
case SDL_SCANCODE_LCTRL:
scancode = SDL_SCANCODE_RCTRL;
break;
case SDL_SCANCODE_LALT:
scancode = SDL_SCANCODE_RALT;
break;
case SDL_SCANCODE_LGUI:
scancode = SDL_SCANCODE_RGUI;
break;
}
}
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
SDL_SendKeyboardKey(eventType == EMSCRIPTEN_EVENT_KEYDOWN ? SDL_PRESSED : SDL_RELEASED, scancode);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
}
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
SDL_bool prevent_default = SDL_GetEventState(eventType == EMSCRIPTEN_EVENT_KEYDOWN ? SDL_KEYDOWN : SDL_KEYUP) == SDL_ENABLE;
/* if TEXTINPUT events are enabled we can't prevent keydown or we won't get keypress
* we need to ALWAYS prevent backspace and tab otherwise chrome takes action and does bad navigation UX
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
*/
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
if (eventType == EMSCRIPTEN_EVENT_KEYDOWN && SDL_GetEventState(SDL_TEXTINPUT) == SDL_ENABLE && keyEvent->keyCode != 8 /* backspace */ && keyEvent->keyCode != 9 /* tab */)
prevent_default = SDL_FALSE;
return prevent_default;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleKeyPress(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData)
{
char text[5];
if (Emscripten_ConvertUTF32toUTF8(keyEvent->charCode, text)) {
SDL_SendKeyboardText(text);
}
Only prevent the default browser event handling when the specific event types aren't disabled by the user, patch contributed by Jonas Platte
2016-09-13 07:09:21 +00:00
return SDL_GetEventState(SDL_TEXTINPUT) == SDL_ENABLE;
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleFullscreenChange(int eventType, const EmscriptenFullscreenChangeEvent *fullscreenChangeEvent, void *userData)
{
SDL_WindowData *window_data = userData;
if(fullscreenChangeEvent->isFullscreen)
{
window_data->window->flags |= window_data->requested_fullscreen_mode;
window_data->requested_fullscreen_mode = 0;
simplify fullscreen handling using new fullscreen_strategy api, patch contributed by Charlie Birks
2016-09-13 07:03:28 +00:00
if(!window_data->requested_fullscreen_mode)
window_data->window->flags |= SDL_WINDOW_FULLSCREEN; /*we didn't reqest fullscreen*/
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
}
else
{
window_data->window->flags &= ~FULLSCREEN_MASK;
}
return 0;
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData)
{
SDL_WindowData *window_data = userData;
emscripten: check if device pixel ratio has changed
2016-10-14 16:06:28 +00:00
/* update pixel ratio */
Emscripten: only update pixel ratio if HiDPI is enabled
2017-02-17 10:13:07 +00:00
if (window_data->window->flags & SDL_WINDOW_ALLOW_HIGHDPI) {
window_data->pixel_ratio = emscripten_get_device_pixel_ratio();
}
emscripten: check if device pixel ratio has changed
2016-10-14 16:06:28 +00:00
simplify fullscreen handling using new fullscreen_strategy api, patch contributed by Charlie Birks
2016-09-13 07:03:28 +00:00
if(!(window_data->window->flags & FULLSCREEN_MASK))
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
{
/* this will only work if the canvas size is set through css */
if(window_data->window->flags & SDL_WINDOW_RESIZABLE)
{
double w = window_data->window->w;
double h = window_data->window->h;
if(window_data->external_size) {
emscripten_get_element_css_size(NULL, &w, &h);
}
emscripten_set_canvas_size(w * window_data->pixel_ratio, h * window_data->pixel_ratio);
/* set_canvas_size unsets this */
if (!window_data->external_size && window_data->pixel_ratio != 1.0f) {
emscripten_set_element_css_size(NULL, w, h);
}
SDL_SendWindowEvent(window_data->window, SDL_WINDOWEVENT_RESIZED, w, h);
}
}
return 0;
}
simplify fullscreen handling using new fullscreen_strategy api, patch contributed by Charlie Birks
2016-09-13 07:03:28 +00:00
EM_BOOL
Emscripten_HandleCanvasResize(int eventType, const void *reserved, void *userData)
{
/*this is used during fullscreen changes*/
SDL_WindowData *window_data = userData;
if(window_data->fullscreen_resize)
{
double css_w, css_h;
emscripten_get_element_css_size(NULL, &css_w, &css_h);
SDL_SendWindowEvent(window_data->window, SDL_WINDOWEVENT_RESIZED, css_w, css_h);
}
return 0;
}
emscripten: Changed internal functions to be static.
2017-05-12 21:01:17 +00:00
static EM_BOOL
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
Emscripten_HandleVisibilityChange(int eventType, const EmscriptenVisibilityChangeEvent *visEvent, void *userData)
{
SDL_WindowData *window_data = userData;
SDL_SendWindowEvent(window_data->window, visEvent->hidden ? SDL_WINDOWEVENT_HIDDEN : SDL_WINDOWEVENT_SHOWN, 0, 0);
return 0;
}
void
Emscripten_RegisterEventHandlers(SDL_WindowData *data)
{
/* There is only one window and that window is the canvas */
emscripten_set_mousemove_callback("#canvas", data, 0, Emscripten_HandleMouseMove);
emscripten_set_mousedown_callback("#canvas", data, 0, Emscripten_HandleMouseButton);
listen for mouse up on document (fixes mouseup outside canvas)
2016-09-13 07:03:37 +00:00
emscripten_set_mouseup_callback("#document", data, 0, Emscripten_HandleMouseButton);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
emscripten_set_mouseenter_callback("#canvas", data, 0, Emscripten_HandleMouseFocus);
emscripten_set_mouseleave_callback("#canvas", data, 0, Emscripten_HandleMouseFocus);
emscripten_set_wheel_callback("#canvas", data, 0, Emscripten_HandleWheel);
Listen for blur and focus events on window instead of canvas Blur and focus events were not arriving for the canvas in Firefox 35 and Chrome 40.
2016-09-13 07:03:48 +00:00
emscripten_set_focus_callback("#window", data, 0, Emscripten_HandleFocus);
emscripten_set_blur_callback("#window", data, 0, Emscripten_HandleFocus);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
emscripten_set_touchstart_callback("#canvas", data, 0, Emscripten_HandleTouch);
emscripten_set_touchend_callback("#canvas", data, 0, Emscripten_HandleTouch);
emscripten_set_touchmove_callback("#canvas", data, 0, Emscripten_HandleTouch);
emscripten_set_touchcancel_callback("#canvas", data, 0, Emscripten_HandleTouch);
emscripten: keep track of pointer lock losses and maybe regrab pointer later. If an Emscripten app is in relative mouse mode and the user presses Escape (or whatever is appropriate), then the pointer lock is broken by the browser. This keeps track of those losses, and next time the user presses a mouse button down on the canvas, if the app is still meant to be in relative mouse mode, we will attempt to regrab the pointer. This makes it much more seamless for things like first-person shooters, and the app doesn't need any manual intervention.
2017-04-20 17:00:54 +00:00
emscripten_set_pointerlockchange_callback(NULL, data, 0, Emscripten_HandlePointerLockChange);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/* Keyboard events are awkward */
const char *keyElement = SDL_GetHint(SDL_HINT_EMSCRIPTEN_KEYBOARD_ELEMENT);
if (!keyElement) keyElement = "#window";
emscripten_set_keydown_callback(keyElement, data, 0, Emscripten_HandleKey);
emscripten_set_keyup_callback(keyElement, data, 0, Emscripten_HandleKey);
emscripten_set_keypress_callback(keyElement, data, 0, Emscripten_HandleKeyPress);
emscripten_set_fullscreenchange_callback("#document", data, 0, Emscripten_HandleFullscreenChange);
emscripten_set_resize_callback("#window", data, 0, Emscripten_HandleResize);
emscripten_set_visibilitychange_callback(data, 0, Emscripten_HandleVisibilityChange);
}
void
Emscripten_UnregisterEventHandlers(SDL_WindowData *data)
{
/* only works due to having one window */
emscripten_set_mousemove_callback("#canvas", NULL, 0, NULL);
emscripten_set_mousedown_callback("#canvas", NULL, 0, NULL);
listen for mouse up on document (fixes mouseup outside canvas)
2016-09-13 07:03:37 +00:00
emscripten_set_mouseup_callback("#document", NULL, 0, NULL);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
emscripten_set_mouseenter_callback("#canvas", NULL, 0, NULL);
emscripten_set_mouseleave_callback("#canvas", NULL, 0, NULL);
emscripten_set_wheel_callback("#canvas", NULL, 0, NULL);
Listen for blur and focus events on window instead of canvas Blur and focus events were not arriving for the canvas in Firefox 35 and Chrome 40.
2016-09-13 07:03:48 +00:00
emscripten_set_focus_callback("#window", NULL, 0, NULL);
emscripten_set_blur_callback("#window", NULL, 0, NULL);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
emscripten_set_touchstart_callback("#canvas", NULL, 0, NULL);
emscripten_set_touchend_callback("#canvas", NULL, 0, NULL);
emscripten_set_touchmove_callback("#canvas", NULL, 0, NULL);
emscripten_set_touchcancel_callback("#canvas", NULL, 0, NULL);
emscripten: Fixed not removing pointer lock event callback.
2017-05-13 21:00:35 +00:00
emscripten_set_pointerlockchange_callback(NULL, NULL, 0, NULL);
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
const char *target = SDL_GetHint(SDL_HINT_EMSCRIPTEN_KEYBOARD_ELEMENT);
if (!target) {
target = "#window";
}
emscripten_set_keydown_callback(target, NULL, 0, NULL);
emscripten_set_keyup_callback(target, NULL, 0, NULL);
emscripten_set_keypress_callback(target, NULL, 0, NULL);
emscripten_set_fullscreenchange_callback("#document", NULL, 0, NULL);
emscripten_set_resize_callback("#window", NULL, 0, NULL);
emscripten_set_visibilitychange_callback(NULL, 0, NULL);
}
#endif /* SDL_VIDEO_DRIVER_EMSCRIPTEN */
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