52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
'use strict';
|
|
const v8Util = process.electronBinding('v8_util');
|
|
class CallbacksRegistry {
|
|
constructor() {
|
|
this.nextId = 0;
|
|
this.callbacks = {};
|
|
}
|
|
add(callback) {
|
|
// The callback is already added.
|
|
let id = v8Util.getHiddenValue(callback, 'callbackId');
|
|
if (id != null)
|
|
return id;
|
|
id = this.nextId += 1;
|
|
// Capture the location of the function and put it in the ID string,
|
|
// so that release errors can be tracked down easily.
|
|
const regexp = /at (.*)/gi;
|
|
const stackString = (new Error()).stack;
|
|
let filenameAndLine;
|
|
let match;
|
|
while ((match = regexp.exec(stackString)) !== null) {
|
|
const location = match[1];
|
|
if (location.includes('(native)'))
|
|
continue;
|
|
if (location.includes('(<anonymous>)'))
|
|
continue;
|
|
if (location.includes('electron.asar'))
|
|
continue;
|
|
const ref = /([^/^)]*)\)?$/gi.exec(location);
|
|
filenameAndLine = ref[1];
|
|
break;
|
|
}
|
|
this.callbacks[id] = callback;
|
|
v8Util.setHiddenValue(callback, 'callbackId', id);
|
|
v8Util.setHiddenValue(callback, 'location', filenameAndLine);
|
|
return id;
|
|
}
|
|
get(id) {
|
|
return this.callbacks[id] || function () { };
|
|
}
|
|
apply(id, ...args) {
|
|
return this.get(id).apply(global, ...args);
|
|
}
|
|
remove(id) {
|
|
const callback = this.callbacks[id];
|
|
if (callback) {
|
|
v8Util.deleteHiddenValue(callback, 'callbackId');
|
|
delete this.callbacks[id];
|
|
}
|
|
}
|
|
}
|
|
module.exports = CallbacksRegistry;
|