118 lines
1.9 KiB
Haxe
118 lines
1.9 KiB
Haxe
package io.newgrounds.utils;
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/**
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* Basically shitty signals, but I didn't want to have external references.
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**/
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class Dispatcher {
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var _list:Array<Void->Void>;
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var _once:Array<Void->Void>;
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public function new() {
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_list = new Array<Void->Void>();
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_once = new Array<Void->Void>();
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}
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public function add(handler:Void->Void, once:Bool = false):Bool {
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if (_list.indexOf(handler) != -1) {
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// ---- REMOVE ONCE
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if (!once && _once.indexOf(handler) != -1)
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_once.remove(handler);
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return false;
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}
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_list.unshift(handler);
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if (once)
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_once.unshift(handler);
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return true;
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}
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inline public function addOnce(handler:Void->Void):Bool {
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return add(handler, true);
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}
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public function remove(handler:Void->Void):Bool {
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_once.remove(handler);
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return _list.remove(handler);
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}
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public function dispatch():Void {
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var i = _list.length - 1;
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while(i >= 0) {
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var handler = _list[i];
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if (_once.remove(handler))
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_list.remove(handler);
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handler();
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i--;
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}
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}
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}
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class TypedDispatcher<T> {
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var _list:Array<T->Void>;
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var _once:Array<T->Void>;
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public function new() {
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_list = new Array<T->Void>();
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_once = new Array<T->Void>();
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}
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public function add(handler:T->Void, once:Bool = false):Bool {
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if (_list.indexOf(handler) != -1) {
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// ---- REMOVE ONCE
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if (!once && _once.indexOf(handler) != -1)
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_once.remove(handler);
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return false;
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}
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_list.unshift(handler);
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if (once)
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_once.unshift(handler);
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return true;
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}
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inline public function addOnce(handler:T->Void):Bool {
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return add(handler, true);
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}
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public function remove(handler:T->Void):Bool {
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_once.remove(handler);
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return _list.remove(handler);
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}
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public function dispatch(arg:T):Void {
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var i = _list.length - 1;
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while(i >= 0) {
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var handler = _list[i];
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if (_once.remove(handler))
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_list.remove(handler);
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handler(arg);
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i--;
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}
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}
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} |