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feat(change_detection): added onInit and onCheck hooks

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vsavkin
2015-05-27 10:14:37 -07:00
parent 5d2af54730
commit c39c8ebcd0
22 changed files with 504 additions and 72 deletions
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39
modules/angular2/src/change_detection/dynamic_change_detector.ts
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@ -27,12 +27,13 @@ import {
import {ExpressionChangedAfterItHasBeenChecked, ChangeDetectionError} from './exceptions';
export class DynamicChangeDetector extends AbstractChangeDetector {
locals: any;
locals: any = null;
values: List<any>;
changes: List<any>;
pipes: List<any>;
prevContexts: List<any>;
directives: any;
directives: any = null;
alreadyChecked: boolean = false;
constructor(private changeControlStrategy: string, private dispatcher: any,
private pipeRegistry: PipeRegistry, private protos: List<ProtoRecord>,
@ -47,8 +48,6 @@ export class DynamicChangeDetector extends AbstractChangeDetector {
ListWrapper.fill(this.pipes, null);
ListWrapper.fill(this.prevContexts, uninitialized);
ListWrapper.fill(this.changes, false);
this.locals = null;
this.directives = null;
}
hydrate(context: any, locals: any, directives: any) {
@ -56,6 +55,7 @@ export class DynamicChangeDetector extends AbstractChangeDetector {
this.values[0] = context;
this.locals = locals;
this.directives = directives;
this.alreadyChecked = false;
}
dehydrate() {
@ -87,19 +87,26 @@ export class DynamicChangeDetector extends AbstractChangeDetector {
var bindingRecord = proto.bindingRecord;
var directiveRecord = bindingRecord.directiveRecord;
var change = this._check(proto, throwOnChange);
if (isPresent(change)) {
this._updateDirectiveOrElement(change, bindingRecord);
isChanged = true;
changes = this._addChange(bindingRecord, change, changes);
if (proto.isLifeCycleRecord()) {
if (proto.name === "onCheck" && !throwOnChange) {
this._getDirectiveFor(directiveRecord.directiveIndex).onCheck();
} else if (proto.name === "onInit" && !throwOnChange && !this.alreadyChecked) {
this._getDirectiveFor(directiveRecord.directiveIndex).onInit();
} else if (proto.name === "onChange" && isPresent(changes) && !throwOnChange) {
this._getDirectiveFor(directiveRecord.directiveIndex).onChange(changes);
}
} else {
var change = this._check(proto, throwOnChange);
if (isPresent(change)) {
this._updateDirectiveOrElement(change, bindingRecord);
isChanged = true;
changes = this._addChange(bindingRecord, change, changes);
}
}
if (proto.lastInDirective) {
if (isPresent(changes)) {
this._getDirectiveFor(directiveRecord.directiveIndex).onChange(changes);
changes = null;
}
changes = null;
if (isChanged && bindingRecord.isOnPushChangeDetection()) {
this._getDetectorFor(directiveRecord.directiveIndex).markAsCheckOnce();
}
@ -107,6 +114,8 @@ export class DynamicChangeDetector extends AbstractChangeDetector {
isChanged = false;
}
}
this.alreadyChecked = true;
}
callOnAllChangesDone() {
@ -142,7 +151,7 @@ export class DynamicChangeDetector extends AbstractChangeDetector {
_check(proto: ProtoRecord, throwOnChange: boolean): SimpleChange {
try {
if (proto.mode === RECORD_TYPE_PIPE || proto.mode === RECORD_TYPE_BINDING_PIPE) {
if (proto.isPipeRecord()) {
return this._pipeCheck(proto, throwOnChange);
} else {
return this._referenceCheck(proto, throwOnChange);