Improve HTML5 canvas management
- set_window_maximized hides page content - Fix sporadic full-screen render-size bug in Chromium - Smoother resizing for maximized canvas
This commit is contained in:
L. Krause
parent
246b574909
commit
bd48f210a1
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@ -96,30 +96,18 @@ static EM_BOOL _browser_resize_callback(int event_type, const EmscriptenUiEvent
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ERR_FAIL_COND_V(event_type != EMSCRIPTEN_EVENT_RESIZE, false);
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OS_JavaScript *os = static_cast<OS_JavaScript *>(user_data);
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// the order in which _browser_resize_callback and
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// _fullscreen_change_callback are called is browser-dependent,
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// so try adjusting for fullscreen in both
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if (os->is_window_fullscreen() || os->is_window_maximized()) {
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OS::VideoMode vm = os->get_video_mode();
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vm.width = ui_event->windowInnerWidth;
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vm.height = ui_event->windowInnerHeight;
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os->set_video_mode(vm);
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emscripten_set_canvas_size(ui_event->windowInnerWidth, ui_event->windowInnerHeight);
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}
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// The order of the fullscreen change event and the window size change
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// event varies, even within just one browser, so defer handling
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os->request_canvas_size_adjustment();
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return false;
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}
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static Size2 _windowed_size;
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static EM_BOOL _fullscreen_change_callback(int event_type, const EmscriptenFullscreenChangeEvent *event, void *user_data) {
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ERR_FAIL_COND_V(event_type != EMSCRIPTEN_EVENT_FULLSCREENCHANGE, false);
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OS_JavaScript *os = static_cast<OS_JavaScript *>(user_data);
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String id = String::utf8(event->id);
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// empty id is canvas
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if (id.empty() || id == "canvas") {
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@ -127,18 +115,8 @@ static EM_BOOL _fullscreen_change_callback(int event_type, const EmscriptenFulls
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// this event property is the only reliable information on
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// browser fullscreen state
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vm.fullscreen = event->isFullscreen;
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if (event->isFullscreen) {
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vm.width = event->screenWidth;
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vm.height = event->screenHeight;
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os->set_video_mode(vm);
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emscripten_set_canvas_size(vm.width, vm.height);
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} else {
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os->set_video_mode(vm);
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if (!os->is_window_maximized()) {
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os->set_window_size(_windowed_size);
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}
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}
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os->set_video_mode(vm);
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os->request_canvas_size_adjustment();
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}
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return false;
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}
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@ -719,14 +697,17 @@ Size2 OS_JavaScript::get_screen_size(int p_screen) const {
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void OS_JavaScript::set_window_size(const Size2 p_size) {
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window_maximized = false;
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windowed_size = p_size;
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if (is_window_fullscreen()) {
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window_maximized = false;
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set_window_fullscreen(false);
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} else if (is_window_maximized()) {
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set_window_maximized(false);
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} else {
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video_mode.width = p_size.x;
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video_mode.height = p_size.y;
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emscripten_set_canvas_size(p_size.x, p_size.y);
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}
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_windowed_size = p_size;
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video_mode.width = p_size.x;
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video_mode.height = p_size.y;
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emscripten_set_canvas_size(p_size.x, p_size.y);
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}
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Size2 OS_JavaScript::get_window_size() const {
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@ -739,20 +720,30 @@ Size2 OS_JavaScript::get_window_size() const {
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void OS_JavaScript::set_window_maximized(bool p_enabled) {
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window_maximized = p_enabled;
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if (p_enabled) {
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if (is_window_fullscreen()) {
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set_window_fullscreen(false);
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return;
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}
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// Calling emscripten_enter_soft_fullscreen mutltiple times hides all
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// page elements except the canvas permanently, so track state
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if (p_enabled && !soft_fs_enabled) {
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if (is_window_fullscreen()) {
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// _browser_resize callback will set canvas size
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set_window_fullscreen(false);
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} else {
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/* clang-format off */
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video_mode.width = EM_ASM_INT_V(return window.innerWidth);
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video_mode.height = EM_ASM_INT_V(return window.innerHeight);
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/* clang-format on */
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emscripten_set_canvas_size(video_mode.width, video_mode.height);
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}
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} else {
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set_window_size(_windowed_size);
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EmscriptenFullscreenStrategy strategy;
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strategy.scaleMode = EMSCRIPTEN_FULLSCREEN_SCALE_STRETCH;
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strategy.canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_STDDEF;
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strategy.filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT;
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strategy.canvasResizedCallback = NULL;
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emscripten_enter_soft_fullscreen(NULL, &strategy);
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soft_fs_enabled = true;
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video_mode.width = get_window_size().width;
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video_mode.height = get_window_size().height;
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} else if (!p_enabled) {
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emscripten_exit_soft_fullscreen();
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soft_fs_enabled = false;
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video_mode.width = windowed_size.width;
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video_mode.height = windowed_size.height;
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emscripten_set_canvas_size(video_mode.width, video_mode.height);
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}
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}
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@ -766,9 +757,17 @@ void OS_JavaScript::set_window_fullscreen(bool p_enable) {
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// _browser_resize_callback or _fullscreen_change_callback
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EMSCRIPTEN_RESULT result;
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if (p_enable) {
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/* clang-format off */
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EM_ASM(Module.requestFullscreen(false, false););
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/* clang-format on */
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if (window_maximized) {
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// soft fs during real fs can cause issues
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set_window_maximized(false);
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window_maximized = true;
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}
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EmscriptenFullscreenStrategy strategy;
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strategy.scaleMode = EMSCRIPTEN_FULLSCREEN_SCALE_STRETCH;
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strategy.canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_STDDEF;
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strategy.filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT;
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strategy.canvasResizedCallback = NULL;
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emscripten_request_fullscreen_strategy(NULL, false, &strategy);
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} else {
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result = emscripten_exit_fullscreen();
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if (result != EMSCRIPTEN_RESULT_SUCCESS) {
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@ -782,6 +781,11 @@ bool OS_JavaScript::is_window_fullscreen() const {
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return video_mode.fullscreen;
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}
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void OS_JavaScript::request_canvas_size_adjustment() {
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canvas_size_adjustment_requested = true;
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}
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void OS_JavaScript::get_fullscreen_mode_list(List<VideoMode> *p_list, int p_screen) const {
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Size2 screen = get_screen_size();
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@ -841,6 +845,17 @@ bool OS_JavaScript::main_loop_iterate() {
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}
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}
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process_joypads();
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if (canvas_size_adjustment_requested) {
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if (video_mode.fullscreen || window_maximized) {
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video_mode.width = get_window_size().width;
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video_mode.height = get_window_size().height;
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}
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if (!video_mode.fullscreen) {
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set_window_maximized(window_maximized);
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}
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canvas_size_adjustment_requested = false;
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}
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return Main::iteration();
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}
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@ -980,6 +995,8 @@ OS_JavaScript::OS_JavaScript(const char *p_execpath, GetDataDirFunc p_get_data_d
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main_loop = NULL;
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gl_extensions = NULL;
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window_maximized = false;
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soft_fs_enabled = false;
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canvas_size_adjustment_requested = false;
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get_data_dir_func = p_get_data_dir_func;
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FileAccessUnix::close_notification_func = _close_notification_funcs;
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@ -59,7 +59,10 @@ class OS_JavaScript : public OS_Unix {
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const char *gl_extensions;
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InputDefault *input;
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Vector2 windowed_size;
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bool window_maximized;
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bool soft_fs_enabled;
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bool canvas_size_adjustment_requested;
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VideoMode video_mode;
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CursorShape cursor_shape;
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MainLoop *main_loop;
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@ -130,6 +133,8 @@ public:
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virtual void set_window_fullscreen(bool p_enable);
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virtual bool is_window_fullscreen() const;
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void request_canvas_size_adjustment();
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virtual String get_name();
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virtual MainLoop *get_main_loop() const;
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