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Small refactor to JavaScript handlers.

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Crated helper class in native/utils.js.
Simplify code in OS/DisplayServer.
This commit is contained in:
Fabio Alessandrelli 2020-07-28 05:54:36 +02:00
parent c610ad3739
commit c0e0247f39
2 changed files with 51 additions and 21 deletions
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31
platform/javascript/os_javascript.cpp
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@ -1055,28 +1055,25 @@ Error OS_JavaScript::initialize(const VideoMode &p_desired, int p_video_driver,
/* clang-format off */
EM_ASM({
Module.listeners = {};
// Bind native event listeners.
// Module.listeners, and Module.drop_handler are defined in native/utils.js
const canvas = Module['canvas'];
const send_notification = cwrap('send_notification', null, ['number']);
const notifications = arguments;
(['mouseover', 'mouseleave', 'focus', 'blur']).forEach(function(event, index) {
Module.listeners[event] = send_notification.bind(null, notifications[index]);
canvas.addEventListener(event, Module.listeners[event]);
Module.listeners.add(canvas, event, send_notification.bind(null, notifications[index]), true);
});
// Clipboard
const update_clipboard = cwrap('update_clipboard', null, ['string']);
Module.listeners['paste'] = function(evt) {
Module.listeners.add(window, 'paste', function(evt) {
update_clipboard(evt.clipboardData.getData('text'));
};
window.addEventListener('paste', Module.listeners['paste'], true);
Module.listeners['dragover'] = function(ev) {
}, false);
// Drag an drop
Module.listeners.add(canvas, 'dragover', function(ev) {
// Prevent default behavior (which would try to open the file(s))
ev.preventDefault();
};
// Drag an drop
Module.listeners['drop'] = Module.drop_handler; // Defined in native/utils.js
canvas.addEventListener('dragover', Module.listeners['dragover'], false);
canvas.addEventListener('drop', Module.listeners['drop'], false);
}, false);
Module.listeners.add(canvas, 'drop', Module.drop_handler, false);
},
MainLoop::NOTIFICATION_WM_MOUSE_ENTER,
MainLoop::NOTIFICATION_WM_MOUSE_EXIT,
@ -1172,15 +1169,7 @@ void OS_JavaScript::delete_main_loop() {
void OS_JavaScript::finalize_async() {
EM_ASM({
const canvas = Module['canvas'];
Object.entries(Module.listeners).forEach(function(kv) {
if (kv[0] == 'paste') {
window.removeEventListener(kv[0], kv[1], true);
} else {
canvas.removeEventListener(kv[0], kv[1]);
}
});
Module.listeners = {};
Module.listeners.clear();
});
if (audio_driver_javascript) {
audio_driver_javascript->finish_async();