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Add window features in web export

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- Add 'window' (canvas) resize, maximize and fullscreen
 - Implement get_screen_size
 - Fix fullscreen resolution

(cherry picked from commit 3e1b437315)
This commit is contained in:
eska 2016-11-26 13:13:16 +01:00
parent d34c530a7f
commit 9518401100
2 changed files with 161 additions and 38 deletions
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187
platform/javascript/os_javascript.cpp
View file

@ -78,6 +78,59 @@ void OS_JavaScript::set_opengl_extensions(const char* p_gl_extensions) {
gl_extensions=p_gl_extensions;
}
static EM_BOOL _browser_resize_callback(int event_type, const EmscriptenUiEvent *ui_event, void *user_data) {
ERR_FAIL_COND_V(event_type!=EMSCRIPTEN_EVENT_RESIZE, false);
OS_JavaScript* os = static_cast<OS_JavaScript*>(user_data);
// the order in which _browser_resize_callback and
// _fullscreen_change_callback are called is browser-dependent,
// so try adjusting for fullscreen in both
if (os->is_window_fullscreen() || os->is_window_maximized()) {
OS::VideoMode vm = os->get_video_mode();
vm.width = ui_event->windowInnerWidth;
vm.height = ui_event->windowInnerHeight;
os->set_video_mode(vm);
emscripten_set_canvas_size(ui_event->windowInnerWidth, ui_event->windowInnerHeight);
}
return false;
}
static Size2 _windowed_size;
static EM_BOOL _fullscreen_change_callback(int event_type, const EmscriptenFullscreenChangeEvent *event, void *user_data) {
ERR_FAIL_COND_V(event_type!=EMSCRIPTEN_EVENT_FULLSCREENCHANGE, false);
OS_JavaScript* os = static_cast<OS_JavaScript*>(user_data);
String id = String::utf8(event->id);
// empty id is canvas
if (id.empty() || id=="canvas") {
OS::VideoMode vm = os->get_video_mode();
// this event property is the only reliable information on
// browser fullscreen state
vm.fullscreen = event->isFullscreen;
if (event->isFullscreen) {
vm.width = event->screenWidth;
vm.height = event->screenHeight;
os->set_video_mode(vm);
emscripten_set_canvas_size(vm.width, vm.height);
}
else {
os->set_video_mode(vm);
if (!os->is_window_maximized()) {
os->set_window_size(_windowed_size);
}
}
}
return false;
}
static InputEvent _setup_key_event(const EmscriptenKeyboardEvent *emscripten_event) {
InputEvent ev;
@ -154,7 +207,11 @@ void OS_JavaScript::initialize(const VideoMode& p_desired,int p_video_driver,int
if (gfx_init_func)
gfx_init_func(gfx_init_ud,use_gl2,p_desired.width,p_desired.height,p_desired.fullscreen);
default_videomode=p_desired;
// nothing to do here, can't fulfil fullscreen request due to
// browser security, window size is already set from HTML
video_mode=p_desired;
video_mode.fullscreen=false;
_windowed_size=get_window_size();
// find locale, emscripten only sets "C"
char locale_ptr[16];
@ -232,26 +289,23 @@ void OS_JavaScript::initialize(const VideoMode& p_desired,int p_video_driver,int
input = memnew( InputDefault );
EMSCRIPTEN_RESULT result = emscripten_set_keydown_callback(NULL, this , true, &_keydown_callback);
if (result!=EMSCRIPTEN_RESULT_SUCCESS) {
ERR_PRINTS( "Error while setting Emscripten keydown callback: Code " + itos(result) );
}
result = emscripten_set_keypress_callback(NULL, this, true, &_keypress_callback);
if (result!=EMSCRIPTEN_RESULT_SUCCESS) {
ERR_PRINTS( "Error while setting Emscripten keypress callback: Code " + itos(result) );
}
result = emscripten_set_keyup_callback(NULL, this, true, &_keyup_callback);
if (result!=EMSCRIPTEN_RESULT_SUCCESS) {
ERR_PRINTS( "Error while setting Emscripten keyup callback: Code " + itos(result) );
}
result = emscripten_set_gamepadconnected_callback(NULL, true, &joy_callback_func);
if (result!=EMSCRIPTEN_RESULT_SUCCESS) {
ERR_PRINTS( "Error while setting Emscripten gamepadconnected callback: Code " + itos(result) );
}
result = emscripten_set_gamepaddisconnected_callback(NULL, true, &joy_callback_func);
if (result!=EMSCRIPTEN_RESULT_SUCCESS) {
ERR_PRINTS( "Error while setting Emscripten gamepaddisconnected callback: Code " + itos(result) );
}
#define EM_CHECK(ev) if (result!=EMSCRIPTEN_RESULT_SUCCESS)\
ERR_PRINTS("Error while setting " #ev " callback: Code " + itos(result))
#define SET_EM_CALLBACK(ev, cb) result = emscripten_set_##ev##_callback(NULL, this, true, &cb); EM_CHECK(ev)
#define SET_EM_CALLBACK_NODATA(ev, cb) result = emscripten_set_##ev##_callback(NULL, true, &cb); EM_CHECK(ev)
EMSCRIPTEN_RESULT result;
SET_EM_CALLBACK(keydown, _keydown_callback)
SET_EM_CALLBACK(keypress, _keypress_callback)
SET_EM_CALLBACK(keyup, _keyup_callback)
SET_EM_CALLBACK(resize, _browser_resize_callback)
SET_EM_CALLBACK(fullscreenchange, _fullscreen_change_callback)
SET_EM_CALLBACK_NODATA(gamepadconnected, joy_callback_func)
SET_EM_CALLBACK_NODATA(gamepaddisconnected, joy_callback_func)
#undef SET_EM_CALLBACK_NODATA
#undef SET_EM_CALLBACK
#undef EM_CHECK
}
void OS_JavaScript::set_main_loop( MainLoop * p_main_loop ) {
@ -318,22 +372,92 @@ void OS_JavaScript::set_window_title(const String& p_title) {
void OS_JavaScript::set_video_mode(const VideoMode& p_video_mode,int p_screen) {
video_mode = p_video_mode;
}
OS::VideoMode OS_JavaScript::get_video_mode(int p_screen) const {
return default_videomode;
return video_mode;
}
Size2 OS_JavaScript::get_screen_size(int p_screen) const {
ERR_FAIL_COND_V(p_screen!=0, Size2());
EmscriptenFullscreenChangeEvent ev;
EMSCRIPTEN_RESULT result = emscripten_get_fullscreen_status(&ev);
ERR_FAIL_COND_V(result!=EMSCRIPTEN_RESULT_SUCCESS, Size2());
return Size2(ev.screenWidth, ev.screenHeight);
}
void OS_JavaScript::set_window_size(const Size2 p_size) {
window_maximized = false;
if (is_window_fullscreen()) {
set_window_fullscreen(false);
}
_windowed_size = p_size;
video_mode.width = p_size.x;
video_mode.height = p_size.y;
emscripten_set_canvas_size(p_size.x, p_size.y);
}
Size2 OS_JavaScript::get_window_size() const {
return Vector2(default_videomode.width,default_videomode.height);
int canvas[3];
emscripten_get_canvas_size(canvas, canvas+1, canvas+2);
return Size2(canvas[0], canvas[1]);
}
void OS_JavaScript::set_window_maximized(bool p_enabled) {
window_maximized = p_enabled;
if (p_enabled) {
if (is_window_fullscreen()) {
// _browser_resize callback will set canvas size
set_window_fullscreen(false);
}
else {
video_mode.width = EM_ASM_INT_V(return window.innerWidth);
video_mode.height = EM_ASM_INT_V(return window.innerHeight);
emscripten_set_canvas_size(video_mode.width, video_mode.height);
}
}
else {
set_window_size(_windowed_size);
}
}
void OS_JavaScript::set_window_fullscreen(bool p_enable) {
if (p_enable==is_window_fullscreen()) {
return;
}
// only requesting changes here, if successful, canvas is resized in
// _browser_resize_callback or _fullscreen_change_callback
EMSCRIPTEN_RESULT result;
if (p_enable) {
EM_ASM(Module.requestFullscreen(false, false););
}
else {
result = emscripten_exit_fullscreen();
if (result!=EMSCRIPTEN_RESULT_SUCCESS) {
ERR_PRINTS("Failed to exit fullscreen: Code " + itos(result));
}
}
}
bool OS_JavaScript::is_window_fullscreen() const {
return video_mode.fullscreen;
}
void OS_JavaScript::get_fullscreen_mode_list(List<VideoMode> *p_list,int p_screen) const {
p_list->push_back(default_videomode);
Size2 screen = get_screen_size();
p_list->push_back(OS::VideoMode(screen.width, screen.height, true));
}
String OS_JavaScript::get_name() {
@ -653,16 +777,10 @@ void OS_JavaScript::main_loop_request_quit() {
main_loop->notification(MainLoop::NOTIFICATION_WM_QUIT_REQUEST);
}
void OS_JavaScript::set_display_size(Size2 p_size) {
default_videomode.width=p_size.x;
default_videomode.height=p_size.y;
}
void OS_JavaScript::reload_gfx() {
if (gfx_init_func)
gfx_init_func(gfx_init_ud,use_gl2,default_videomode.width,default_videomode.height,default_videomode.fullscreen);
gfx_init_func(gfx_init_ud,use_gl2,video_mode.width,video_mode.height,video_mode.fullscreen);
if (rasterizer)
rasterizer->reload_vram();
}
@ -758,10 +876,6 @@ String OS_JavaScript::get_joy_guid(int p_device) const {
}
OS_JavaScript::OS_JavaScript(GFXInitFunc p_gfx_init_func,void*p_gfx_init_ud, GetDataDirFunc p_get_data_dir_func) {
default_videomode.width=800;
default_videomode.height=600;
default_videomode.fullscreen=true;
default_videomode.resizable=false;
gfx_init_func=p_gfx_init_func;
gfx_init_ud=p_gfx_init_ud;
@ -770,6 +884,7 @@ OS_JavaScript::OS_JavaScript(GFXInitFunc p_gfx_init_func,void*p_gfx_init_ud, Get
last_id=1;
gl_extensions=NULL;
rasterizer=NULL;
window_maximized=false;
get_data_dir_func=p_get_data_dir_func;
FileAccessUnix::close_notification_func=_close_notification_funcs;

12
platform/javascript/os_javascript.h
View file

@ -80,7 +80,8 @@ private:
const char* gl_extensions;
InputDefault *input;
VideoMode default_videomode;
bool window_maximized;
VideoMode video_mode;
MainLoop * main_loop;
GetDataDirFunc get_data_dir_func;
@ -135,7 +136,15 @@ public:
virtual VideoMode get_video_mode(int p_screen=0) const;
virtual void get_fullscreen_mode_list(List<VideoMode> *p_list,int p_screen=0) const;
virtual Size2 get_screen_size(int p_screen=0) const;
virtual void set_window_size(const Size2);
virtual Size2 get_window_size() const;
virtual void set_window_maximized(bool p_enabled);
virtual bool is_window_maximized() const { return window_maximized; }
virtual void set_window_fullscreen(bool p_enable);
virtual bool is_window_fullscreen() const;
virtual String get_name();
virtual MainLoop *get_main_loop() const;
@ -153,7 +162,6 @@ public:
virtual bool has_touchscreen_ui_hint() const;
void set_opengl_extensions(const char* p_gl_extensions);
void set_display_size(Size2 p_size);
void reload_gfx();