ActivationController.js
119 lines
| 2.8 KiB
| application/javascript
|
JavascriptLexer
cin
|
r0 | define(["dojo/_base/declare", "../guard", "../safe", "../log/_LogMixin"], function (declare, guard, safe, _LogMixin) { | |
| "use strict"; | |||
| return declare([_LogMixin], { | |||
| _current: null, | |||
| _pending: false, | |||
| getCurrent: function () { | |||
| return this._current; | |||
| }, | |||
| _start: function () { | |||
| if (this._pending) | |||
| throw new Error("The activation/decativation is already pending"); | |||
| this._pending = true; | |||
| }, | |||
| _await: function (d) { | |||
| var me = this; | |||
| return d.then(function (x) { | |||
| me._pending = false; | |||
| return x; | |||
| }, function (e) { | |||
| me._pending = false; | |||
| throw e; | |||
| }); | |||
| }, | |||
| activate: function (component) { | |||
| safe.argumentNotNull(component, "component"); | |||
| var me = this; | |||
| if (component.getController() !== this) | |||
| throw new Error("The specified component doesn't belong to this controller"); | |||
| return me._await(guard(me, "_start").then(function () { | |||
| me._activate(component); | |||
| })); | |||
| }, | |||
| _activate: function (component) { | |||
| var me = this; | |||
| if (me._current === component) | |||
| return guard(false); | |||
| // before activation hook | |||
| return guard(me, "onActivating", [component]).then(function () { | |||
| // deactivate curent | |||
| if (me._current) | |||
| return me._current.deactivate(true).then(function () { | |||
| try { | |||
| me._current.onDeactivated(); | |||
| } catch (err) { | |||
| me.error(err); | |||
| } | |||
| // HACK raise deactivated event | |||
| try { | |||
| me.onDeactivated(me._current, component); | |||
| } catch (err) { | |||
| // deactivated shouldn't affect the process | |||
| me.error(err); | |||
| } | |||
| me._current = null; | |||
| }); | |||
| }).then(function () { | |||
| return component.activate(true); | |||
| }).then(function () { | |||
| me._current = component; | |||
| try { | |||
| me.onActivated(component); | |||
| } catch (err) { | |||
| me.error(err); | |||
| } | |||
| }); | |||
| }, | |||
| /** | |||
| * Деактивирует текущую компоненту. | |||
| * | |||
| * @async | |||
| * @returns true - компонента была деактивирована, либо нет активной | |||
| * компоненты. false - запрос на деактивацию - отклонен. | |||
| */ | |||
| deactivate: function () { | |||
| var me = this; | |||
| return me._await(guard(me, "_start").then(function () { | |||
| return me._deactivate(); | |||
| })); | |||
| }, | |||
| _deactivate: function () { | |||
| var me = this; | |||
| if (!me._current) | |||
| return guard(false); | |||
| return guard(me, "onDeactivating").then(function () { | |||
| return me._current.deactivate(true); | |||
| }).then(function () { | |||
| // HACK raise deactivated event | |||
| try { | |||
| me.onDeactivated(me._current); | |||
| } catch (err) { | |||
| me.error(err); | |||
| } | |||
| me._current = null; | |||
| }); | |||
| }, | |||
| onActivating: function (component) {}, | |||
| onDeactivating: function (component) {}, | |||
| onDeactivated: function (component, next) {}, | |||
| onActivated: function (component) {} | |||
| }); | |||
| }); |