electron/atom/common/api/lib/callbacks-registry.js
2016-01-16 14:26:01 +08:00

65 lines
1.7 KiB
JavaScript

'use strict';
var slice = [].slice;
const v8Util = process.atomBinding('v8_util');
class CallbacksRegistry {
constructor() {
this.nextId = 0;
this.callbacks = {};
}
add(callback) {
// The callback is already added.
var filenameAndLine, id, location, match, ref, regexp, stackString, x;
id = v8Util.getHiddenValue(callback, 'callbackId');
if (id != null) {
return id;
}
id = ++this.nextId;
// Capture the location of the function and put it in the ID string,
// so that release errors can be tracked down easily.
regexp = /at (.*)/gi;
stackString = (new Error).stack;
while ((match = regexp.exec(stackString)) !== null) {
x = match[0], location = match[1];
if (location.indexOf('(native)') !== -1) {
continue;
}
if (location.indexOf('atom.asar') !== -1) {
continue;
}
ref = /([^\/^\)]*)\)?$/gi.exec(location), x = ref[0], filenameAndLine = ref[1];
break;
}
this.callbacks[id] = callback;
v8Util.setHiddenValue(callback, 'callbackId', id);
v8Util.setHiddenValue(callback, 'location', filenameAndLine);
return id;
}
get(id) {
var ref;
return (ref = this.callbacks[id]) != null ? ref : function() {};
}
call() {
var args, id, ref;
id = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
return (ref = this.get(id)).call.apply(ref, [global].concat(slice.call(args)));
}
apply() {
var args, id, ref;
id = arguments[0], args = 2 <= arguments.length ? slice.call(arguments, 1) : [];
return (ref = this.get(id)).apply.apply(ref, [global].concat(slice.call(args)));
}
remove(id) {
return delete this.callbacks[id];
}
}
module.exports = CallbacksRegistry