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feat(core): Support multiple ChangeDetectors in a single LifeCycle. 

This allows a single LifeCycle to be shared among multiple root components, since each root component has its own ChangeDetector configured.
This commit is contained in:
Alex Rickabaugh 2015-09-02 15:19:17 -07:00
parent 9dc1d6ae81
commit 4f57990d45
1 changed files with 8 additions and 6 deletions
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14
modules/angular2/src/core/life_cycle/life_cycle.ts
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@ -35,13 +35,15 @@ import {wtfLeave, wtfCreateScope, WtfScopeFn} from '../profile/profile';
export class LifeCycle { export class LifeCycle {
static _tickScope: WtfScopeFn = wtfCreateScope('LifeCycle#tick()'); static _tickScope: WtfScopeFn = wtfCreateScope('LifeCycle#tick()');
_changeDetector: ChangeDetector; _changeDetectors: ChangeDetector[];
_enforceNoNewChanges: boolean; _enforceNoNewChanges: boolean;
_runningTick: boolean = false; _runningTick: boolean = false;
constructor(changeDetector: ChangeDetector = null, enforceNoNewChanges: boolean = false) { constructor(changeDetector: ChangeDetector = null, enforceNoNewChanges: boolean = false) {
this._changeDetector = this._changeDetectors = [];
changeDetector; // may be null when instantiated from application bootstrap if (isPresent(changeDetector)) {
this._changeDetectors.push(changeDetector);
}
this._enforceNoNewChanges = enforceNoNewChanges; this._enforceNoNewChanges = enforceNoNewChanges;
} }
@ -50,7 +52,7 @@ export class LifeCycle {
*/ */
registerWith(zone: NgZone, changeDetector: ChangeDetector = null) { registerWith(zone: NgZone, changeDetector: ChangeDetector = null) {
if (isPresent(changeDetector)) { if (isPresent(changeDetector)) {
this._changeDetector = changeDetector; this._changeDetectors.push(changeDetector);
} }
zone.overrideOnTurnDone(() => this.tick()); zone.overrideOnTurnDone(() => this.tick());
} }
@ -78,9 +80,9 @@ export class LifeCycle {
var s = LifeCycle._tickScope(); var s = LifeCycle._tickScope();
try { try {
this._runningTick = true; this._runningTick = true;
this._changeDetector.detectChanges(); this._changeDetectors.forEach((detector) => detector.detectChanges());
if (this._enforceNoNewChanges) { if (this._enforceNoNewChanges) {
this._changeDetector.checkNoChanges(); this._changeDetectors.forEach((detector) => detector.checkNoChanges());
} }
} finally { } finally {
this._runningTick = false; this._runningTick = false;