Revert: "feat(ivy): convert [ngStyle] and [ngClass] to use ivy styling bindings" (#34616)
This change reverts https://github.com/angular/angular/pull/28711 NOTE: This change deletes code and creates a BROKEN SHA. If reverting this SHA needs to be reverted with the next SHA to get back into a valid state. The change removes the fact that `NgStyle`/`NgClass` is special and colaborates with the `[style]`/`[class]` to merge its styles. By reverting to old behavior we have better backwards compatiblity since it is no longer treated special and simply overwrites the styles (same as VE) PR Close #34616
This commit is contained in:
Miško Hevery
parent
4005815114
commit
69de7680f5
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@ -20,7 +20,7 @@ export {registerLocaleData} from './i18n/locale_data';
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export {Plural, NumberFormatStyle, FormStyle, Time, TranslationWidth, FormatWidth, NumberSymbol, WeekDay, getNumberOfCurrencyDigits, getCurrencySymbol, getLocaleDayPeriods, getLocaleDayNames, getLocaleMonthNames, getLocaleId, getLocaleEraNames, getLocaleWeekEndRange, getLocaleFirstDayOfWeek, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocalePluralCase, getLocaleTimeFormat, getLocaleNumberSymbol, getLocaleNumberFormat, getLocaleCurrencyCode, getLocaleCurrencyName, getLocaleCurrencySymbol, getLocaleDirection} from './i18n/locale_data_api';
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export {parseCookieValue as ɵparseCookieValue} from './cookie';
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export {CommonModule} from './common_module';
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export {NgClass, NgClassBase, NgForOf, NgForOfContext, NgIf, NgIfContext, NgPlural, NgPluralCase, NgStyle, NgStyleBase, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NgComponentOutlet} from './directives/index';
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export {NgClass, NgForOf, NgForOfContext, NgIf, NgIfContext, NgPlural, NgPluralCase, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NgComponentOutlet} from './directives/index';
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export {DOCUMENT} from './dom_tokens';
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export {AsyncPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, JsonPipe, LowerCasePipe, CurrencyPipe, DecimalPipe, PercentPipe, SlicePipe, UpperCasePipe, TitleCasePipe, KeyValuePipe, KeyValue} from './pipes/index';
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export {PLATFORM_BROWSER_ID as ɵPLATFORM_BROWSER_ID, PLATFORM_SERVER_ID as ɵPLATFORM_SERVER_ID, PLATFORM_WORKER_APP_ID as ɵPLATFORM_WORKER_APP_ID, PLATFORM_WORKER_UI_ID as ɵPLATFORM_WORKER_UI_ID, isPlatformBrowser, isPlatformServer, isPlatformWorkerApp, isPlatformWorkerUi} from './platform_id';
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@ -7,18 +7,17 @@
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*/
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import {Provider} from '@angular/core';
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import {NgClass, NgClassBase} from './ng_class';
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import {NgClass} from './ng_class';
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import {NgComponentOutlet} from './ng_component_outlet';
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import {NgForOf, NgForOfContext} from './ng_for_of';
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import {NgIf, NgIfContext} from './ng_if';
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import {NgPlural, NgPluralCase} from './ng_plural';
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import {NgStyle, NgStyleBase} from './ng_style';
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import {NgStyle} from './ng_style';
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import {NgSwitch, NgSwitchCase, NgSwitchDefault} from './ng_switch';
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import {NgTemplateOutlet} from './ng_template_outlet';
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export {
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NgClass,
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NgClassBase,
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NgComponentOutlet,
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NgForOf,
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NgForOfContext,
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@ -27,7 +26,6 @@ export {
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NgPlural,
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NgPluralCase,
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NgStyle,
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NgStyleBase,
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NgSwitch,
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NgSwitchCase,
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NgSwitchDefault,
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@ -5,69 +5,9 @@
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Directive, DoCheck, Input, ɵRenderFlags, ɵɵclassMap, ɵɵdefineDirective} from '@angular/core';
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import {Directive, DoCheck, ElementRef, Input, IterableChanges, IterableDiffer, IterableDiffers, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Renderer2, ɵisListLikeIterable as isListLikeIterable, ɵstringify as stringify} from '@angular/core';
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import {NgClassImpl, NgClassImplProvider} from './ng_class_impl';
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/*
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* NgClass (as well as NgStyle) behaves differently when loaded in the VE and when not.
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*
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* If the VE is present (which is for older versions of Angular) then NgClass will inject
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* the legacy diffing algorithm as a service and delegate all styling changes to that.
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*
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* If the VE is not present then NgStyle will normalize (through the injected service) and
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* then write all styling changes to the `[style]` binding directly (through a host binding).
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* Then Angular will notice the host binding change and treat the changes as styling
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* changes and apply them via the core styling instructions that exist within Angular.
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*/
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// used when the VE is present
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export const ngClassDirectiveDef__PRE_R3__ = undefined;
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// used when the VE is not present (note the directive will
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// never be instantiated normally because it is apart of a
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// base class)
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export const ngClassDirectiveDef__POST_R3__ = ɵɵdefineDirective({
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type: function() {} as any,
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selectors: null as any,
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hostVars: 2,
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hostBindings: function(rf: ɵRenderFlags, ctx: any, elIndex: number) {
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if (rf & ɵRenderFlags.Update) {
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ɵɵclassMap(ctx.getValue());
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}
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}
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});
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export const ngClassDirectiveDef = ngClassDirectiveDef__PRE_R3__;
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export const ngClassFactoryDef__PRE_R3__ = undefined;
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export const ngClassFactoryDef__POST_R3__ = function() {};
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export const ngClassFactoryDef = ngClassFactoryDef__PRE_R3__;
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/**
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* Serves as the base non-VE container for NgClass.
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*
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* While this is a base class that NgClass extends from, the
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* class itself acts as a container for non-VE code to setup
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* a link to the `[class]` host binding (via the static
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* `ɵdir` property on the class).
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*
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* Note that the `ɵdir` property's code is switched
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* depending if VE is present or not (this allows for the
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* binding code to be set only for newer versions of Angular).
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*
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* @publicApi
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*/
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export class NgClassBase {
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static ɵdir: any = ngClassDirectiveDef;
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static ɵfac: any = ngClassFactoryDef;
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constructor(protected _delegate: NgClassImpl) {}
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getValue() { return this._delegate.getValue(); }
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}
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type NgClassSupportedTypes = string[] | Set<string>| {[klass: string]: any} | null | undefined;
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/**
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* @ngModule CommonModule
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@ -97,17 +37,124 @@ export class NgClassBase {
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*
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* @publicApi
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*/
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@Directive({selector: '[ngClass]', providers: [NgClassImplProvider]})
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export class NgClass extends NgClassBase implements DoCheck {
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constructor(delegate: NgClassImpl) { super(delegate); }
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@Directive({selector: '[ngClass]'})
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export class NgClass implements DoCheck {
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private _iterableDiffer: IterableDiffer<string>|null = null;
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private _keyValueDiffer: KeyValueDiffer<string, any>|null = null;
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private _initialClasses: string[] = [];
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private _rawClass: NgClassSupportedTypes = null;
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constructor(
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private _iterableDiffers: IterableDiffers, private _keyValueDiffers: KeyValueDiffers,
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private _ngEl: ElementRef, private _renderer: Renderer2) {}
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@Input('class')
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set klass(value: string) { this._delegate.setClass(value); }
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set klass(value: string) {
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this._removeClasses(this._initialClasses);
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this._initialClasses = typeof value === 'string' ? value.split(/\s+/) : [];
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this._applyClasses(this._initialClasses);
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this._applyClasses(this._rawClass);
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}
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@Input('ngClass')
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set ngClass(value: string|string[]|Set<string>|{[klass: string]: any}) {
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this._delegate.setNgClass(value);
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this._removeClasses(this._rawClass);
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this._applyClasses(this._initialClasses);
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this._iterableDiffer = null;
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this._keyValueDiffer = null;
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this._rawClass = typeof value === 'string' ? value.split(/\s+/) : value;
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if (this._rawClass) {
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if (isListLikeIterable(this._rawClass)) {
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this._iterableDiffer = this._iterableDiffers.find(this._rawClass).create();
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} else {
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this._keyValueDiffer = this._keyValueDiffers.find(this._rawClass).create();
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}
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}
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}
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ngDoCheck() { this._delegate.applyChanges(); }
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ngDoCheck() {
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if (this._iterableDiffer) {
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const iterableChanges = this._iterableDiffer.diff(this._rawClass as string[]);
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if (iterableChanges) {
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this._applyIterableChanges(iterableChanges);
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}
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} else if (this._keyValueDiffer) {
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const keyValueChanges = this._keyValueDiffer.diff(this._rawClass as{[k: string]: any});
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if (keyValueChanges) {
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this._applyKeyValueChanges(keyValueChanges);
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}
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}
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}
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private _applyKeyValueChanges(changes: KeyValueChanges<string, any>): void {
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changes.forEachAddedItem((record) => this._toggleClass(record.key, record.currentValue));
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changes.forEachChangedItem((record) => this._toggleClass(record.key, record.currentValue));
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changes.forEachRemovedItem((record) => {
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if (record.previousValue) {
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this._toggleClass(record.key, false);
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}
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});
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}
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private _applyIterableChanges(changes: IterableChanges<string>): void {
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changes.forEachAddedItem((record) => {
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if (typeof record.item === 'string') {
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this._toggleClass(record.item, true);
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} else {
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throw new Error(
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`NgClass can only toggle CSS classes expressed as strings, got ${stringify(record.item)}`);
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}
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});
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changes.forEachRemovedItem((record) => this._toggleClass(record.item, false));
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}
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/**
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* Applies a collection of CSS classes to the DOM element.
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*
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* For argument of type Set and Array CSS class names contained in those collections are always
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* added.
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* For argument of type Map CSS class name in the map's key is toggled based on the value (added
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* for truthy and removed for falsy).
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*/
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private _applyClasses(rawClassVal: NgClassSupportedTypes) {
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if (rawClassVal) {
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if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {
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(<any>rawClassVal).forEach((klass: string) => this._toggleClass(klass, true));
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} else {
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Object.keys(rawClassVal).forEach(klass => this._toggleClass(klass, !!rawClassVal[klass]));
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}
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}
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}
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/**
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* Removes a collection of CSS classes from the DOM element. This is mostly useful for cleanup
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* purposes.
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*/
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private _removeClasses(rawClassVal: NgClassSupportedTypes) {
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if (rawClassVal) {
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if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {
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(<any>rawClassVal).forEach((klass: string) => this._toggleClass(klass, false));
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} else {
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Object.keys(rawClassVal).forEach(klass => this._toggleClass(klass, false));
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}
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}
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}
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private _toggleClass(klass: string, enabled: boolean): void {
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klass = klass.trim();
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if (klass) {
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klass.split(/\s+/g).forEach(klass => {
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if (enabled) {
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this._renderer.addClass(this._ngEl.nativeElement, klass);
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} else {
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this._renderer.removeClass(this._ngEl.nativeElement, klass);
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}
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});
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}
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}
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}
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@ -1,208 +0,0 @@
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {ElementRef, Injectable, IterableChanges, IterableDiffer, IterableDiffers, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Renderer2, ɵisListLikeIterable as isListLikeIterable, ɵstringify as stringify} from '@angular/core';
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import {StylingDiffer, StylingDifferOptions} from './styling_differ';
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/**
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* Used as a token for an injected service within the NgClass directive.
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*
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* NgClass behaves differenly whether or not VE is being used or not. If
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* present then the legacy ngClass diffing algorithm will be used as an
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* injected service. Otherwise the new diffing algorithm (which delegates
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* to the `[class]` binding) will be used. This toggle behavior is done so
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* via the ivy_switch mechanism.
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*/
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export abstract class NgClassImpl {
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abstract setClass(value: string): void;
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abstract setNgClass(value: string|string[]|Set<string>|{[klass: string]: any}): void;
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abstract applyChanges(): void;
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abstract getValue(): {[key: string]: any}|null;
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}
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@Injectable()
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export class NgClassR2Impl extends NgClassImpl {
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// TODO(issue/24571): remove '!'.
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private _iterableDiffer !: IterableDiffer<string>| null;
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// TODO(issue/24571): remove '!'.
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private _keyValueDiffer !: KeyValueDiffer<string, any>| null;
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private _initialClasses: string[] = [];
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// TODO(issue/24571): remove '!'.
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private _rawClass !: string[] | Set<string>| {[klass: string]: any};
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constructor(
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private _iterableDiffers: IterableDiffers, private _keyValueDiffers: KeyValueDiffers,
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private _ngEl: ElementRef, private _renderer: Renderer2) {
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super();
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}
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getValue() { return null; }
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setClass(value: string) {
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this._removeClasses(this._initialClasses);
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this._initialClasses = typeof value === 'string' ? value.split(/\s+/) : [];
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this._applyClasses(this._initialClasses);
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this._applyClasses(this._rawClass);
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}
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setNgClass(value: string|string[]|Set<string>|{[klass: string]: any}) {
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this._removeClasses(this._rawClass);
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this._applyClasses(this._initialClasses);
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this._iterableDiffer = null;
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this._keyValueDiffer = null;
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this._rawClass = typeof value === 'string' ? value.split(/\s+/) : value;
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if (this._rawClass) {
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if (isListLikeIterable(this._rawClass)) {
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this._iterableDiffer = this._iterableDiffers.find(this._rawClass).create();
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} else {
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this._keyValueDiffer = this._keyValueDiffers.find(this._rawClass).create();
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}
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}
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}
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applyChanges() {
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if (this._iterableDiffer) {
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const iterableChanges = this._iterableDiffer.diff(this._rawClass as string[]);
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if (iterableChanges) {
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this._applyIterableChanges(iterableChanges);
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}
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} else if (this._keyValueDiffer) {
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const keyValueChanges = this._keyValueDiffer.diff(this._rawClass as{[k: string]: any});
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if (keyValueChanges) {
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this._applyKeyValueChanges(keyValueChanges);
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}
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}
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}
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private _applyKeyValueChanges(changes: KeyValueChanges<string, any>): void {
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changes.forEachAddedItem((record) => this._toggleClass(record.key, record.currentValue));
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changes.forEachChangedItem((record) => this._toggleClass(record.key, record.currentValue));
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changes.forEachRemovedItem((record) => {
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if (record.previousValue) {
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this._toggleClass(record.key, false);
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}
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});
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}
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private _applyIterableChanges(changes: IterableChanges<string>): void {
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changes.forEachAddedItem((record) => {
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if (typeof record.item === 'string') {
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this._toggleClass(record.item, true);
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} else {
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throw new Error(
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`NgClass can only toggle CSS classes expressed as strings, got: ${stringify(record.item)}`);
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}
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});
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changes.forEachRemovedItem((record) => this._toggleClass(record.item, false));
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}
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|
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/**
|
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* Applies a collection of CSS classes to the DOM element.
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*
|
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* For argument of type Set and Array CSS class names contained in those collections are always
|
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* added.
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* For argument of type Map CSS class name in the map's key is toggled based on the value (added
|
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* for truthy and removed for falsy).
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*/
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private _applyClasses(rawClassVal: string[]|Set<string>|{[klass: string]: any}) {
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if (rawClassVal) {
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if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {
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(<any>rawClassVal).forEach((klass: string) => this._toggleClass(klass, true));
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} else {
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Object.keys(rawClassVal).forEach(klass => this._toggleClass(klass, !!rawClassVal[klass]));
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}
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}
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||||
}
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||||
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/**
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* Removes a collection of CSS classes from the DOM element. This is mostly useful for cleanup
|
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* purposes.
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*/
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private _removeClasses(rawClassVal: string[]|Set<string>|{[klass: string]: any}) {
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if (rawClassVal) {
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if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {
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(<any>rawClassVal).forEach((klass: string) => this._toggleClass(klass, false));
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} else {
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Object.keys(rawClassVal).forEach(klass => this._toggleClass(klass, false));
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}
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}
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}
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private _toggleClass(klass: string, enabled: boolean): void {
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klass = klass.trim();
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if (klass) {
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klass.split(/\s+/g).forEach(klass => {
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if (enabled) {
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this._renderer.addClass(this._ngEl.nativeElement, klass);
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} else {
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this._renderer.removeClass(this._ngEl.nativeElement, klass);
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}
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});
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}
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||||
}
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}
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@Injectable()
|
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export class NgClassR3Impl extends NgClassImpl {
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private _value: {[key: string]: boolean}|null = null;
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private _ngClassDiffer = new StylingDiffer<{[key: string]: true}>(
|
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'NgClass', StylingDifferOptions.TrimProperties|
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StylingDifferOptions.AllowSubKeys|
|
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StylingDifferOptions.AllowStringValue|StylingDifferOptions.ForceAsMap);
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||||
private _classStringDiffer: StylingDiffer<{[key: string]: true}>|null = null;
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getValue() { return this._value; }
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setClass(value: string) {
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||||
// early exit incase the binding gets emitted as an empty value which
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||||
// means there is no reason to instantiate and diff the values...
|
||||
if (!value && !this._classStringDiffer) return;
|
||||
|
||||
this._classStringDiffer = this._classStringDiffer ||
|
||||
new StylingDiffer('class',
|
||||
StylingDifferOptions.AllowStringValue | StylingDifferOptions.ForceAsMap);
|
||||
this._classStringDiffer.setInput(value);
|
||||
}
|
||||
|
||||
setNgClass(value: string|string[]|Set<string>|{[klass: string]: any}) {
|
||||
this._ngClassDiffer.setInput(value);
|
||||
}
|
||||
|
||||
applyChanges() {
|
||||
const classChanged = this._classStringDiffer ? this._classStringDiffer.updateValue() : false;
|
||||
const ngClassChanged = this._ngClassDiffer.updateValue();
|
||||
if (classChanged || ngClassChanged) {
|
||||
let ngClassValue = this._ngClassDiffer.value;
|
||||
let classValue = this._classStringDiffer ? this._classStringDiffer.value : null;
|
||||
|
||||
// merge classValue and ngClassValue and set value
|
||||
this._value = (classValue && ngClassValue) ? {...classValue, ...ngClassValue} :
|
||||
classValue || ngClassValue;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// the implementation for both NgStyleR2Impl and NgStyleR3Impl are
|
||||
// not ivy_switch'd away, instead they are only hooked up into the
|
||||
// DI via NgStyle's directive's provider property.
|
||||
export const NgClassImplProvider__PRE_R3__ = {
|
||||
provide: NgClassImpl,
|
||||
useClass: NgClassR2Impl
|
||||
};
|
||||
|
||||
export const NgClassImplProvider__POST_R3__ = {
|
||||
provide: NgClassImpl,
|
||||
useClass: NgClassR3Impl
|
||||
};
|
||||
|
||||
export const NgClassImplProvider = NgClassImplProvider__PRE_R3__;
|
||||
|
|
@ -5,69 +5,8 @@
|
|||
* Use of this source code is governed by an MIT-style license that can be
|
||||
* found in the LICENSE file at https://angular.io/license
|
||||
*/
|
||||
import {Directive, DoCheck, Input, ɵRenderFlags, ɵɵdefineDirective, ɵɵstyleMap} from '@angular/core';
|
||||
import {Directive, DoCheck, ElementRef, Input, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Renderer2} from '@angular/core';
|
||||
|
||||
import {NgStyleImpl, NgStyleImplProvider} from './ng_style_impl';
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* NgStyle (as well as NgClass) behaves differently when loaded in the VE and when not.
|
||||
*
|
||||
* If the VE is present (which is for older versions of Angular) then NgStyle will inject
|
||||
* the legacy diffing algorithm as a service and delegate all styling changes to that.
|
||||
*
|
||||
* If the VE is not present then NgStyle will normalize (through the injected service) and
|
||||
* then write all styling changes to the `[style]` binding directly (through a host binding).
|
||||
* Then Angular will notice the host binding change and treat the changes as styling
|
||||
* changes and apply them via the core styling instructions that exist within Angular.
|
||||
*/
|
||||
|
||||
// used when the VE is present
|
||||
export const ngStyleDirectiveDef__PRE_R3__ = undefined;
|
||||
export const ngStyleFactoryDef__PRE_R3__ = undefined;
|
||||
|
||||
// used when the VE is not present (note the directive will
|
||||
// never be instantiated normally because it is apart of a
|
||||
// base class)
|
||||
export const ngStyleDirectiveDef__POST_R3__ = ɵɵdefineDirective({
|
||||
type: function() {} as any,
|
||||
selectors: null as any,
|
||||
hostVars: 2,
|
||||
hostBindings: function(rf: ɵRenderFlags, ctx: any, elIndex: number) {
|
||||
if (rf & ɵRenderFlags.Update) {
|
||||
ɵɵstyleMap(ctx.getValue());
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
export const ngStyleFactoryDef__POST_R3__ = function() {};
|
||||
|
||||
export const ngStyleDirectiveDef = ngStyleDirectiveDef__PRE_R3__;
|
||||
export const ngStyleFactoryDef = ngStyleDirectiveDef__PRE_R3__;
|
||||
|
||||
/**
|
||||
* Serves as the base non-VE container for NgStyle.
|
||||
*
|
||||
* While this is a base class that NgStyle extends from, the
|
||||
* class itself acts as a container for non-VE code to setup
|
||||
* a link to the `[style]` host binding (via the static
|
||||
* `ɵdir` property on the class).
|
||||
*
|
||||
* Note that the `ɵdir` property's code is switched
|
||||
* depending if VE is present or not (this allows for the
|
||||
* binding code to be set only for newer versions of Angular).
|
||||
*
|
||||
* @publicApi
|
||||
*/
|
||||
export class NgStyleBase {
|
||||
static ɵdir: any = ngStyleDirectiveDef;
|
||||
static ɵfac: any = ngStyleFactoryDef;
|
||||
|
||||
constructor(protected _delegate: NgStyleImpl) {}
|
||||
|
||||
getValue() { return this._delegate.getValue(); }
|
||||
}
|
||||
|
||||
/**
|
||||
* @ngModule CommonModule
|
||||
|
|
@ -105,12 +44,45 @@ export class NgStyleBase {
|
|||
*
|
||||
* @publicApi
|
||||
*/
|
||||
@Directive({selector: '[ngStyle]', providers: [NgStyleImplProvider]})
|
||||
export class NgStyle extends NgStyleBase implements DoCheck {
|
||||
constructor(delegate: NgStyleImpl) { super(delegate); }
|
||||
@Directive({selector: '[ngStyle]'})
|
||||
export class NgStyle implements DoCheck {
|
||||
private _ngStyle: {[key: string]: string}|null = null;
|
||||
private _differ: KeyValueDiffer<string, string|number>|null = null;
|
||||
|
||||
constructor(
|
||||
private _ngEl: ElementRef, private _differs: KeyValueDiffers, private _renderer: Renderer2) {}
|
||||
|
||||
@Input('ngStyle')
|
||||
set ngStyle(value: {[klass: string]: any}|null) { this._delegate.setNgStyle(value); }
|
||||
|
||||
ngDoCheck() { this._delegate.applyChanges(); }
|
||||
set ngStyle(values: {[klass: string]: any}|null) {
|
||||
this._ngStyle = values;
|
||||
if (!this._differ && values) {
|
||||
this._differ = this._differs.find(values).create();
|
||||
}
|
||||
}
|
||||
|
||||
ngDoCheck() {
|
||||
if (this._differ) {
|
||||
const changes = this._differ.diff(this._ngStyle !);
|
||||
if (changes) {
|
||||
this._applyChanges(changes);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private _setStyle(nameAndUnit: string, value: string|number|null|undefined): void {
|
||||
const [name, unit] = nameAndUnit.split('.');
|
||||
value = value != null && unit ? `${value}${unit}` : value;
|
||||
|
||||
if (value != null) {
|
||||
this._renderer.setStyle(this._ngEl.nativeElement, name, value as string);
|
||||
} else {
|
||||
this._renderer.removeStyle(this._ngEl.nativeElement, name);
|
||||
}
|
||||
}
|
||||
|
||||
private _applyChanges(changes: KeyValueChanges<string, string|number>): void {
|
||||
changes.forEachRemovedItem((record) => this._setStyle(record.key, null));
|
||||
changes.forEachAddedItem((record) => this._setStyle(record.key, record.currentValue));
|
||||
changes.forEachChangedItem((record) => this._setStyle(record.key, record.currentValue));
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,114 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google Inc. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by an MIT-style license that can be
|
||||
* found in the LICENSE file at https://angular.io/license
|
||||
*/
|
||||
import {ElementRef, Injectable, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Renderer2} from '@angular/core';
|
||||
|
||||
import {StylingDiffer, StylingDifferOptions} from './styling_differ';
|
||||
|
||||
/**
|
||||
* Used as a token for an injected service within the NgStyle directive.
|
||||
*
|
||||
* NgStyle behaves differenly whether or not VE is being used or not. If
|
||||
* present then the legacy ngClass diffing algorithm will be used as an
|
||||
* injected service. Otherwise the new diffing algorithm (which delegates
|
||||
* to the `[style]` binding) will be used. This toggle behavior is done so
|
||||
* via the ivy_switch mechanism.
|
||||
*/
|
||||
export abstract class NgStyleImpl {
|
||||
abstract getValue(): {[key: string]: any}|null;
|
||||
abstract setNgStyle(value: {[key: string]: any}|null): void;
|
||||
abstract applyChanges(): void;
|
||||
}
|
||||
|
||||
@Injectable()
|
||||
export class NgStyleR2Impl implements NgStyleImpl {
|
||||
// TODO(issue/24571): remove '!'.
|
||||
private _ngStyle !: {[key: string]: string};
|
||||
// TODO(issue/24571): remove '!'.
|
||||
private _differ !: KeyValueDiffer<string, string|number>;
|
||||
|
||||
constructor(
|
||||
private _ngEl: ElementRef, private _differs: KeyValueDiffers, private _renderer: Renderer2) {}
|
||||
|
||||
getValue() { return null; }
|
||||
|
||||
/**
|
||||
* A map of style properties, specified as colon-separated
|
||||
* key-value pairs.
|
||||
* * The key is a style name, with an optional `.<unit>` suffix
|
||||
* (such as 'top.px', 'font-style.em').
|
||||
* * The value is an expression to be evaluated.
|
||||
*/
|
||||
setNgStyle(values: {[key: string]: string}) {
|
||||
this._ngStyle = values;
|
||||
if (!this._differ && values) {
|
||||
this._differ = this._differs.find(values).create();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Applies the new styles if needed.
|
||||
*/
|
||||
applyChanges() {
|
||||
if (this._differ) {
|
||||
const changes = this._differ.diff(this._ngStyle);
|
||||
if (changes) {
|
||||
this._applyChanges(changes);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private _applyChanges(changes: KeyValueChanges<string, string|number>): void {
|
||||
changes.forEachRemovedItem((record) => this._setStyle(record.key, null));
|
||||
changes.forEachAddedItem((record) => this._setStyle(record.key, record.currentValue));
|
||||
changes.forEachChangedItem((record) => this._setStyle(record.key, record.currentValue));
|
||||
}
|
||||
|
||||
private _setStyle(nameAndUnit: string, value: string|number|null|undefined): void {
|
||||
const [name, unit] = nameAndUnit.split('.');
|
||||
value = value != null && unit ? `${value}${unit}` : value;
|
||||
|
||||
if (value != null) {
|
||||
this._renderer.setStyle(this._ngEl.nativeElement, name, value as string);
|
||||
} else {
|
||||
this._renderer.removeStyle(this._ngEl.nativeElement, name);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Injectable()
|
||||
export class NgStyleR3Impl implements NgStyleImpl {
|
||||
private _differ =
|
||||
new StylingDiffer<{[key: string]: any}>('NgStyle', StylingDifferOptions.AllowUnits);
|
||||
|
||||
private _value: {[key: string]: any}|null = null;
|
||||
|
||||
getValue() { return this._value; }
|
||||
|
||||
setNgStyle(value: {[key: string]: any}|null) { this._differ.setInput(value); }
|
||||
|
||||
applyChanges() {
|
||||
if (this._differ.updateValue()) {
|
||||
this._value = this._differ.value;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// the implementation for both NgClassR2Impl and NgClassR3Impl are
|
||||
// not ivy_switch'd away, instead they are only hooked up into the
|
||||
// DI via NgStyle's directive's provider property.
|
||||
export const NgStyleImplProvider__PRE_R3__ = {
|
||||
provide: NgStyleImpl,
|
||||
useClass: NgStyleR2Impl
|
||||
};
|
||||
|
||||
export const NgStyleImplProvider__POST_R3__ = {
|
||||
provide: NgStyleImpl,
|
||||
useClass: NgStyleR3Impl
|
||||
};
|
||||
|
||||
export const NgStyleImplProvider = NgStyleImplProvider__PRE_R3__;
|
||||
|
|
@ -1,390 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google Inc. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by an MIT-style license that can be
|
||||
* found in the LICENSE file at https://angular.io/license
|
||||
*/
|
||||
|
||||
/**
|
||||
* Used to diff and convert ngStyle/ngClass instructions into [style] and [class] bindings.
|
||||
*
|
||||
* ngStyle and ngClass both accept various forms of input and behave differently than that
|
||||
* of how [style] and [class] behave in Angular.
|
||||
*
|
||||
* The differences are:
|
||||
* - ngStyle and ngClass both **deep-watch** their binding values for changes each time CD runs
|
||||
* while [style] and [class] bindings do not (they check for identity changes)
|
||||
* - ngStyle allows for unit-based keys (e.g. `{'max-width.px':value}`) and [style] does not
|
||||
* - ngClass supports arrays of class values and [class] only accepts map and string values
|
||||
* - ngClass allows for multiple className keys (space-separated) within an array or map
|
||||
* (as the * key) while [class] only accepts a simple key/value map object
|
||||
*
|
||||
* Having Angular understand and adapt to all the different forms of behavior is complicated
|
||||
* and unnecessary. Instead, ngClass and ngStyle should have their input values be converted
|
||||
* into something that the core-level [style] and [class] bindings understand.
|
||||
*
|
||||
* This [StylingDiffer] class handles this conversion by creating a new output value each time
|
||||
* the input value of the binding value has changed (either via identity change or deep collection
|
||||
* content change).
|
||||
*
|
||||
* ## Why do we care about ngStyle/ngClass?
|
||||
* The styling algorithm code (documented inside of `render3/interfaces/styling.ts`) needs to
|
||||
* respect and understand the styling values emitted through ngStyle and ngClass (when they
|
||||
* are present and used in a template).
|
||||
*
|
||||
* Instead of having these directives manage styling on their own, they should be included
|
||||
* into the Angular styling algorithm that exists for [style] and [class] bindings.
|
||||
*
|
||||
* Here's why:
|
||||
*
|
||||
* - If ngStyle/ngClass is used in combination with [style]/[class] bindings then the
|
||||
* styles and classes would fall out of sync and be applied and updated at
|
||||
* inconsistent times
|
||||
* - Both ngClass/ngStyle should respect [class.name] and [style.prop] bindings (and not arbitrarily
|
||||
* overwrite their changes)
|
||||
*
|
||||
* ```
|
||||
* <!-- if `w1` is updated then it will always override `w2`
|
||||
* if `w2` is updated then it will always override `w1`
|
||||
* if both are updated at the same time then `w1` wins -->
|
||||
* <div [ngStyle]="{width:w1}" [style.width]="w2">...</div>
|
||||
*
|
||||
* <!-- if `w1` is updated then it will always lose to `w2`
|
||||
* if `w2` is updated then it will always override `w1`
|
||||
* if both are updated at the same time then `w2` wins -->
|
||||
* <div [style]="{width:w1}" [style.width]="w2">...</div>
|
||||
* ```
|
||||
* - ngClass/ngStyle were written as a directives and made use of maps, closures and other
|
||||
* expensive data structures which were evaluated each time CD runs
|
||||
*/
|
||||
export class StylingDiffer<T extends({[key: string]: string | null} | {[key: string]: true})> {
|
||||
/**
|
||||
* Normalized string map representing the last value set via `setValue()` or null if no value has
|
||||
* been set or the last set value was null
|
||||
*/
|
||||
public readonly value: T|null = null;
|
||||
|
||||
/**
|
||||
* The last set value that was applied via `setValue()`
|
||||
*/
|
||||
private _inputValue: T|string|string[]|Set<string>|null = null;
|
||||
|
||||
/**
|
||||
* The type of value that the `_lastSetValue` variable is
|
||||
*/
|
||||
private _inputValueType: StylingDifferValueTypes = StylingDifferValueTypes.Null;
|
||||
|
||||
/**
|
||||
* Whether or not the last value change occurred because the variable itself changed reference
|
||||
* (identity)
|
||||
*/
|
||||
private _inputValueIdentityChangeSinceLastCheck = false;
|
||||
|
||||
constructor(private _name: string, private _options: StylingDifferOptions) {}
|
||||
|
||||
/**
|
||||
* Sets the input value for the differ and updates the output value if necessary.
|
||||
*
|
||||
* @param value the new styling input value provided from the ngClass/ngStyle binding
|
||||
*/
|
||||
setInput(value: T|string[]|string|Set<string>|null): void {
|
||||
if (value !== this._inputValue) {
|
||||
let type: StylingDifferValueTypes;
|
||||
if (!value) { // matches empty strings, null, false and undefined
|
||||
type = StylingDifferValueTypes.Null;
|
||||
value = null;
|
||||
} else if (Array.isArray(value)) {
|
||||
type = StylingDifferValueTypes.Array;
|
||||
} else if (value instanceof Set) {
|
||||
type = StylingDifferValueTypes.Set;
|
||||
} else if (typeof value === 'string') {
|
||||
if (!(this._options & StylingDifferOptions.AllowStringValue)) {
|
||||
throw new Error(this._name + ' string values are not allowed');
|
||||
}
|
||||
type = StylingDifferValueTypes.String;
|
||||
} else {
|
||||
type = StylingDifferValueTypes.StringMap;
|
||||
}
|
||||
|
||||
this._inputValue = value;
|
||||
this._inputValueType = type;
|
||||
this._inputValueIdentityChangeSinceLastCheck = true;
|
||||
this._processValueChange(true);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks the input value for identity or deep changes and updates output value if necessary.
|
||||
*
|
||||
* This function can be called right after `setValue()` is called, but it can also be
|
||||
* called incase the existing value (if it's a collection) changes internally. If the
|
||||
* value is indeed a collection it will do the necessary diffing work and produce a
|
||||
* new object value as assign that to `value`.
|
||||
*
|
||||
* @returns whether or not the value has changed in some way.
|
||||
*/
|
||||
updateValue(): boolean {
|
||||
let valueHasChanged = this._inputValueIdentityChangeSinceLastCheck;
|
||||
if (!this._inputValueIdentityChangeSinceLastCheck &&
|
||||
(this._inputValueType & StylingDifferValueTypes.Collection)) {
|
||||
valueHasChanged = this._processValueChange(false);
|
||||
} else {
|
||||
// this is set to false in the event that the value is a collection.
|
||||
// This way (if the identity hasn't changed), then the algorithm can
|
||||
// diff the collection value to see if the contents have mutated
|
||||
// (otherwise the value change was processed during the time when
|
||||
// the variable changed).
|
||||
this._inputValueIdentityChangeSinceLastCheck = false;
|
||||
}
|
||||
return valueHasChanged;
|
||||
}
|
||||
|
||||
/**
|
||||
* Examines the last set value to see if there was a change in content.
|
||||
*
|
||||
* @param inputValueIdentityChanged whether or not the last set value changed in identity or not
|
||||
* @returns `true` when the value has changed (either by identity or by shape if its a
|
||||
* collection)
|
||||
*/
|
||||
private _processValueChange(inputValueIdentityChanged: boolean): boolean {
|
||||
// if the inputValueIdentityChanged then we know that input has changed
|
||||
let inputChanged = inputValueIdentityChanged;
|
||||
|
||||
let newOutputValue: T|string|null = null;
|
||||
const trimValues = (this._options & StylingDifferOptions.TrimProperties) ? true : false;
|
||||
const parseOutUnits = (this._options & StylingDifferOptions.AllowUnits) ? true : false;
|
||||
const allowSubKeys = (this._options & StylingDifferOptions.AllowSubKeys) ? true : false;
|
||||
|
||||
switch (this._inputValueType) {
|
||||
// case 1: [input]="string"
|
||||
case StylingDifferValueTypes.String: {
|
||||
if (inputValueIdentityChanged) {
|
||||
// process string input only if the identity has changed since the strings are immutable
|
||||
const keys = (this._inputValue as string).split(/\s+/g);
|
||||
if (this._options & StylingDifferOptions.ForceAsMap) {
|
||||
newOutputValue = {} as T;
|
||||
for (let i = 0; i < keys.length; i++) {
|
||||
(newOutputValue as any)[keys[i]] = true;
|
||||
}
|
||||
} else {
|
||||
newOutputValue = keys.join(' ');
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
// case 2: [input]="{key:value}"
|
||||
case StylingDifferValueTypes.StringMap: {
|
||||
const inputMap = this._inputValue as T;
|
||||
const inputKeys = Object.keys(inputMap);
|
||||
|
||||
if (!inputValueIdentityChanged) {
|
||||
// if StringMap and the identity has not changed then output value must have already been
|
||||
// initialized to a StringMap, so we can safely compare the input and output maps
|
||||
inputChanged = mapsAreEqual(inputKeys, inputMap, this.value as T);
|
||||
}
|
||||
|
||||
if (inputChanged) {
|
||||
newOutputValue = bulidMapFromStringMap(
|
||||
trimValues, parseOutUnits, allowSubKeys, inputMap, inputKeys) as T;
|
||||
}
|
||||
break;
|
||||
}
|
||||
// case 3a: [input]="[str1, str2, ...]"
|
||||
// case 3b: [input]="Set"
|
||||
case StylingDifferValueTypes.Array:
|
||||
case StylingDifferValueTypes.Set: {
|
||||
const inputKeys = Array.from(this._inputValue as string[] | Set<string>);
|
||||
if (!inputValueIdentityChanged) {
|
||||
const outputKeys = Object.keys(this.value !);
|
||||
inputChanged = !keyArraysAreEqual(outputKeys, inputKeys);
|
||||
}
|
||||
if (inputChanged) {
|
||||
newOutputValue =
|
||||
bulidMapFromStringArray(this._name, trimValues, allowSubKeys, inputKeys) as T;
|
||||
}
|
||||
break;
|
||||
}
|
||||
// case 4: [input]="null|undefined"
|
||||
default:
|
||||
inputChanged = inputValueIdentityChanged;
|
||||
newOutputValue = null;
|
||||
break;
|
||||
}
|
||||
|
||||
if (inputChanged) {
|
||||
// update the readonly `value` property by casting it to `any` first
|
||||
(this as any).value = newOutputValue;
|
||||
}
|
||||
|
||||
return inputChanged;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Various options that are consumed by the [StylingDiffer] class
|
||||
*/
|
||||
export const enum StylingDifferOptions {
|
||||
None = 0b00000, //
|
||||
TrimProperties = 0b00001, //
|
||||
AllowSubKeys = 0b00010, //
|
||||
AllowStringValue = 0b00100, //
|
||||
AllowUnits = 0b01000, //
|
||||
ForceAsMap = 0b10000, //
|
||||
}
|
||||
|
||||
/**
|
||||
* The different types of inputs that the [StylingDiffer] can deal with
|
||||
*/
|
||||
const enum StylingDifferValueTypes {
|
||||
Null = 0b0000, //
|
||||
String = 0b0001, //
|
||||
StringMap = 0b0010, //
|
||||
Array = 0b0100, //
|
||||
Set = 0b1000, //
|
||||
Collection = 0b1110, //
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @param trim whether the keys should be trimmed of leading or trailing whitespace
|
||||
* @param parseOutUnits whether units like "px" should be parsed out of the key name and appended to
|
||||
* the value
|
||||
* @param allowSubKeys whether key needs to be subsplit by whitespace into multiple keys
|
||||
* @param values values of the map
|
||||
* @param keys keys of the map
|
||||
* @return a normalized string map based on the input string map
|
||||
*/
|
||||
function bulidMapFromStringMap(
|
||||
trim: boolean, parseOutUnits: boolean, allowSubKeys: boolean,
|
||||
values: {[key: string]: string | null | true},
|
||||
keys: string[]): {[key: string]: string | null | true} {
|
||||
const map: {[key: string]: string | null | true} = {};
|
||||
|
||||
for (let i = 0; i < keys.length; i++) {
|
||||
let key = keys[i];
|
||||
let value = values[key];
|
||||
|
||||
if (value !== undefined) {
|
||||
if (typeof value !== 'boolean') {
|
||||
value = '' + value;
|
||||
}
|
||||
// Map uses untrimmed keys, so don't trim until passing to `setMapValues`
|
||||
setMapValues(map, trim ? key.trim() : key, value, parseOutUnits, allowSubKeys);
|
||||
}
|
||||
}
|
||||
|
||||
return map;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param trim whether the keys should be trimmed of leading or trailing whitespace
|
||||
* @param parseOutUnits whether units like "px" should be parsed out of the key name and appended to
|
||||
* the value
|
||||
* @param allowSubKeys whether key needs to be subsplit by whitespace into multiple keys
|
||||
* @param values values of the map
|
||||
* @param keys keys of the map
|
||||
* @return a normalized string map based on the input string array
|
||||
*/
|
||||
function bulidMapFromStringArray(
|
||||
errorPrefix: string, trim: boolean, allowSubKeys: boolean,
|
||||
keys: string[]): {[key: string]: true} {
|
||||
const map: {[key: string]: true} = {};
|
||||
|
||||
for (let i = 0; i < keys.length; i++) {
|
||||
let key = keys[i];
|
||||
ngDevMode && assertValidValue(errorPrefix, key);
|
||||
key = trim ? key.trim() : key;
|
||||
setMapValues(map, key, true, false, allowSubKeys);
|
||||
}
|
||||
|
||||
return map;
|
||||
}
|
||||
|
||||
function assertValidValue(errorPrefix: string, value: any) {
|
||||
if (typeof value !== 'string') {
|
||||
throw new Error(
|
||||
`${errorPrefix} can only toggle CSS classes expressed as strings, got: ${value}`);
|
||||
}
|
||||
}
|
||||
|
||||
function setMapValues(
|
||||
map: {[key: string]: unknown}, key: string, value: string | null | true, parseOutUnits: boolean,
|
||||
allowSubKeys: boolean) {
|
||||
if (allowSubKeys && key.indexOf(' ') > 0) {
|
||||
const innerKeys = key.split(/\s+/g);
|
||||
for (let j = 0; j < innerKeys.length; j++) {
|
||||
setIndividualMapValue(map, innerKeys[j], value, parseOutUnits);
|
||||
}
|
||||
} else {
|
||||
setIndividualMapValue(map, key, value, parseOutUnits);
|
||||
}
|
||||
}
|
||||
|
||||
function setIndividualMapValue(
|
||||
map: {[key: string]: unknown}, key: string, value: string | true | null,
|
||||
parseOutUnits: boolean) {
|
||||
if (parseOutUnits && typeof value === 'string') {
|
||||
// parse out the unit (e.g. ".px") from the key and append it to the value
|
||||
// e.g. for [width.px]="40" => ["width","40px"]
|
||||
const unitIndex = key.indexOf('.');
|
||||
if (unitIndex > 0) {
|
||||
const unit = key.substr(unitIndex + 1); // skip over the "." in "width.px"
|
||||
key = key.substring(0, unitIndex);
|
||||
value += unit;
|
||||
}
|
||||
}
|
||||
map[key] = value;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Compares two maps and returns true if they are equal
|
||||
*
|
||||
* @param inputKeys value of `Object.keys(inputMap)` it's unclear if this actually performs better
|
||||
* @param inputMap map to compare
|
||||
* @param outputMap map to compare
|
||||
*/
|
||||
function mapsAreEqual(
|
||||
inputKeys: string[], inputMap: {[key: string]: unknown},
|
||||
outputMap: {[key: string]: unknown}, ): boolean {
|
||||
const outputKeys = Object.keys(outputMap);
|
||||
|
||||
if (inputKeys.length !== outputKeys.length) {
|
||||
return true;
|
||||
}
|
||||
|
||||
for (let i = 0, n = inputKeys.length; i <= n; i++) {
|
||||
let key = inputKeys[i];
|
||||
if (key !== outputKeys[i] || inputMap[key] !== outputMap[key]) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Compares two Object.keys() arrays and returns true if they are equal.
|
||||
*
|
||||
* @param keyArray1 Object.keys() array to compare
|
||||
* @param keyArray1 Object.keys() array to compare
|
||||
*/
|
||||
function keyArraysAreEqual(keyArray1: string[] | null, keyArray2: string[] | null): boolean {
|
||||
if (!Array.isArray(keyArray1) || !Array.isArray(keyArray2)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (keyArray1.length !== keyArray2.length) {
|
||||
return false;
|
||||
}
|
||||
|
||||
for (let i = 0; i < keyArray1.length; i++) {
|
||||
if (keyArray1[i] !== keyArray2[i]) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
@ -6,9 +6,5 @@
|
|||
* found in the LICENSE file at https://angular.io/license
|
||||
*/
|
||||
|
||||
export {ngClassDirectiveDef__POST_R3__ as ɵngClassDirectiveDef__POST_R3__, ngClassFactoryDef__POST_R3__ as ɵngClassFactoryDef__POST_R3__} from './directives/ng_class';
|
||||
export {NgClassImpl as ɵNgClassImpl, NgClassImplProvider__POST_R3__ as ɵNgClassImplProvider__POST_R3__, NgClassR2Impl as ɵNgClassR2Impl} from './directives/ng_class_impl';
|
||||
export {ngStyleDirectiveDef__POST_R3__ as ɵngStyleDirectiveDef__POST_R3__, ngStyleFactoryDef__POST_R3__ as ɵngStyleFactoryDef__POST_R3__} from './directives/ng_style';
|
||||
export {NgStyleImpl as ɵNgStyleImpl, NgStyleImplProvider__POST_R3__ as ɵNgStyleImplProvider__POST_R3__, NgStyleR2Impl as ɵNgStyleR2Impl} from './directives/ng_style_impl';
|
||||
export {DomAdapter as ɵDomAdapter, getDOM as ɵgetDOM, setRootDomAdapter as ɵsetRootDomAdapter} from './dom_adapter';
|
||||
export {BrowserPlatformLocation as ɵBrowserPlatformLocation} from './location/platform_location';
|
||||
|
|
@ -1,123 +0,0 @@
|
|||
/**
|
||||
* @license
|
||||
* Copyright Google Inc. All Rights Reserved.
|
||||
*
|
||||
* Use of this source code is governed by an MIT-style license that can be
|
||||
* found in the LICENSE file at https://angular.io/license
|
||||
*/
|
||||
import {StylingDiffer, StylingDifferOptions} from '@angular/common/src/directives/styling_differ';
|
||||
|
||||
describe('StylingDiffer', () => {
|
||||
it('should create a key/value object of values from a string', () => {
|
||||
const d = new StylingDiffer(
|
||||
'ngClass', StylingDifferOptions.ForceAsMap | StylingDifferOptions.AllowStringValue);
|
||||
expect(d.value).toEqual(null);
|
||||
|
||||
d.setInput('one two');
|
||||
expect(d.value).toEqual({one: true, two: true});
|
||||
|
||||
d.setInput('three');
|
||||
expect(d.value).toEqual({three: true});
|
||||
});
|
||||
|
||||
|
||||
describe('setInput', () => {
|
||||
|
||||
it('should not emit that a value has changed if a new non-collection value was not set', () => {
|
||||
const d = new StylingDiffer(
|
||||
'ngClass', StylingDifferOptions.ForceAsMap | StylingDifferOptions.AllowStringValue);
|
||||
expect(d.value).toEqual(null);
|
||||
|
||||
d.setInput('one two');
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({one: true, two: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
expect(d.value).toEqual({one: true, two: true});
|
||||
|
||||
d.setInput('three');
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({three: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
expect(d.value).toEqual({three: true});
|
||||
|
||||
d.setInput(null);
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual(null);
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
expect(d.value).toEqual(null);
|
||||
});
|
||||
});
|
||||
|
||||
|
||||
describe('updateValue', () => {
|
||||
|
||||
it('should update the differ value if the contents of a input StringMap change', () => {
|
||||
const d = new StylingDiffer('ngClass', StylingDifferOptions.ForceAsMap);
|
||||
|
||||
const myMap: {[key: string]: true} = {};
|
||||
myMap['abc'] = true;
|
||||
|
||||
d.setInput(myMap);
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({abc: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
|
||||
myMap['def'] = true;
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({abc: true, def: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
|
||||
delete myMap['abc'];
|
||||
delete myMap['def'];
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
});
|
||||
|
||||
|
||||
it('should update the differ value if the contents of an input Array change', () => {
|
||||
const d = new StylingDiffer('ngClass', StylingDifferOptions.ForceAsMap);
|
||||
|
||||
const myArray: string[] = [];
|
||||
myArray.push('abc');
|
||||
|
||||
d.setInput(myArray);
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({abc: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
|
||||
myArray.push('def');
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({abc: true, def: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
|
||||
myArray.length = 0;
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
});
|
||||
|
||||
|
||||
it('should update the differ value if the contents of an input Set change', () => {
|
||||
const d = new StylingDiffer('ngClass', StylingDifferOptions.ForceAsMap);
|
||||
|
||||
const mySet = new Set<string>();
|
||||
mySet.add('abc');
|
||||
|
||||
d.setInput(mySet);
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({abc: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
|
||||
mySet.add('def');
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({abc: true, def: true});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
|
||||
mySet.clear();
|
||||
expect(d.updateValue()).toBeTruthy();
|
||||
expect(d.value).toEqual({});
|
||||
expect(d.updateValue()).toBeFalsy();
|
||||
});
|
||||
});
|
||||
});
|
||||
|
|
@ -288,21 +288,23 @@ runInEachFileSystem(() => {
|
|||
propertiesToConsider: ['esm2015']
|
||||
});
|
||||
|
||||
// In `@angular/common` the `NgClassR3Impl` class gets exported as something like
|
||||
// In `@angular/common` the `BrowserPlatformLocation` class gets exported as something like
|
||||
// `ɵangular_packages_common_common_a`.
|
||||
const jsContents = fs.readFile(_(`/node_modules/@angular/common/fesm2015/common.js`));
|
||||
const exportedNameMatch = jsContents.match(/export.* NgClassR3Impl as ([^ ,}]+)/);
|
||||
const exportedNameMatch =
|
||||
jsContents.match(/export.* BrowserPlatformLocation as ([^ ,}]+)/);
|
||||
if (exportedNameMatch === null) {
|
||||
return fail(
|
||||
'Expected `/node_modules/@angular/common/fesm2015/common.js` to export `NgClassR3Impl` via an alias');
|
||||
'Expected `/node_modules/@angular/common/fesm2015/common.js` to export `BrowserPlatformLocation` via an alias');
|
||||
}
|
||||
const exportedName = exportedNameMatch[1];
|
||||
|
||||
// We need to make sure that the flat typings file exports this directly
|
||||
const dtsContents = fs.readFile(_('/node_modules/@angular/common/common.d.ts'));
|
||||
expect(dtsContents).toContain(`export declare class ${exportedName} extends ɵNgClassImpl`);
|
||||
expect(dtsContents)
|
||||
.toContain(`export declare class ${exportedName} extends PlatformLocation`);
|
||||
// And that ngcc's modifications to that class use the correct (exported) name
|
||||
expect(dtsContents).toContain(`static ɵprov: ɵngcc0.ɵɵInjectableDef<${exportedName}>`);
|
||||
expect(dtsContents).toContain(`static ɵfac: ɵngcc0.ɵɵFactoryDef<${exportedName}>`);
|
||||
});
|
||||
|
||||
it('should add generic type for ModuleWithProviders and generate exports for private modules',
|
||||
|
|
|
|||
|
|
@ -12,19 +12,18 @@ import {Type} from '../core';
|
|||
import {Injector} from '../di/injector';
|
||||
import {Sanitizer} from '../sanitization/sanitizer';
|
||||
import {assertDataInRange} from '../util/assert';
|
||||
|
||||
import {assertComponentType} from './assert';
|
||||
import {getComponentDef} from './definition';
|
||||
import {diPublicInInjector, getOrCreateNodeInjectorForNode} from './di';
|
||||
import {registerPostOrderHooks} from './hooks';
|
||||
import {CLEAN_PROMISE, addHostBindingsToExpandoInstructions, addToViewTree, createLView, createTView, getOrCreateTComponentView, getOrCreateTNode, growHostVarsSpace, initTNodeFlags, instantiateRootComponent, invokeHostBindingsInCreationMode, locateHostElement, markAsComponentHost, refreshView, renderInitialStyling, renderView} from './instructions/shared';
|
||||
import {registerInitialStylingOnTNode} from './instructions/styling';
|
||||
import {CLEAN_PROMISE, addHostBindingsToExpandoInstructions, addToViewTree, createLView, createTView, getOrCreateTComponentView, getOrCreateTNode, growHostVarsSpace, initTNodeFlags, instantiateRootComponent, invokeHostBindingsInCreationMode, locateHostElement, markAsComponentHost, refreshView, renderView} from './instructions/shared';
|
||||
import {ComponentDef, ComponentType, RenderFlags} from './interfaces/definition';
|
||||
import {TElementNode, TNode, TNodeType} from './interfaces/node';
|
||||
import {PlayerHandler} from './interfaces/player';
|
||||
import {RElement, Renderer3, RendererFactory3, domRendererFactory3} from './interfaces/renderer';
|
||||
import {CONTEXT, HEADER_OFFSET, LView, LViewFlags, RootContext, RootContextFlags, TVIEW, TViewType} from './interfaces/view';
|
||||
import {enterView, getPreviousOrParentTNode, incrementActiveDirectiveId, leaveView, setActiveHostElement} from './state';
|
||||
import {computeStaticStyling} from './styling/static_styling';
|
||||
import {setUpAttributes} from './util/attrs_utils';
|
||||
import {publishDefaultGlobalUtils} from './util/global_utils';
|
||||
import {defaultScheduler, stringifyForError} from './util/misc_utils';
|
||||
|
|
@ -175,10 +174,9 @@ export function createRootComponentView(
|
|||
const tNode: TElementNode = getOrCreateTNode(tView, null, 0, TNodeType.Element, null, null);
|
||||
const mergedAttrs = tNode.mergedAttrs = def.hostAttrs;
|
||||
if (mergedAttrs !== null) {
|
||||
registerInitialStylingOnTNode(tNode, mergedAttrs, 0);
|
||||
computeStaticStyling(tNode, mergedAttrs);
|
||||
if (rNode !== null) {
|
||||
setUpAttributes(renderer, rNode, mergedAttrs);
|
||||
renderInitialStyling(renderer, rNode, tNode, false);
|
||||
}
|
||||
}
|
||||
const componentView = createLView(
|
||||
|
|
|
|||
|
|
@ -189,25 +189,15 @@ export declare class LowerCasePipe implements PipeTransform {
|
|||
transform(value: string): string;
|
||||
}
|
||||
|
||||
export declare class NgClass extends NgClassBase implements DoCheck {
|
||||
export declare class NgClass implements DoCheck {
|
||||
set klass(value: string);
|
||||
set ngClass(value: string | string[] | Set<string> | {
|
||||
[klass: string]: any;
|
||||
});
|
||||
constructor(delegate: NgClassImpl);
|
||||
constructor(_iterableDiffers: IterableDiffers, _keyValueDiffers: KeyValueDiffers, _ngEl: ElementRef, _renderer: Renderer2);
|
||||
ngDoCheck(): void;
|
||||
}
|
||||
|
||||
export declare class NgClassBase {
|
||||
protected _delegate: NgClassImpl;
|
||||
constructor(_delegate: NgClassImpl);
|
||||
getValue(): {
|
||||
[key: string]: any;
|
||||
} | null;
|
||||
static ɵdir: any;
|
||||
static ɵfac: any;
|
||||
}
|
||||
|
||||
export declare class NgComponentOutlet implements OnChanges, OnDestroy {
|
||||
ngComponentOutlet: Type<any>;
|
||||
ngComponentOutletContent: any[][];
|
||||
|
|
@ -275,24 +265,14 @@ export declare class NgPluralCase {
|
|||
constructor(value: string, template: TemplateRef<Object>, viewContainer: ViewContainerRef, ngPlural: NgPlural);
|
||||
}
|
||||
|
||||
export declare class NgStyle extends NgStyleBase implements DoCheck {
|
||||
set ngStyle(value: {
|
||||
export declare class NgStyle implements DoCheck {
|
||||
set ngStyle(values: {
|
||||
[klass: string]: any;
|
||||
} | null);
|
||||
constructor(delegate: NgStyleImpl);
|
||||
constructor(_ngEl: ElementRef, _differs: KeyValueDiffers, _renderer: Renderer2);
|
||||
ngDoCheck(): void;
|
||||
}
|
||||
|
||||
export declare class NgStyleBase {
|
||||
protected _delegate: NgStyleImpl;
|
||||
constructor(_delegate: NgStyleImpl);
|
||||
getValue(): {
|
||||
[key: string]: any;
|
||||
} | null;
|
||||
static ɵdir: any;
|
||||
static ɵfac: any;
|
||||
}
|
||||
|
||||
export declare class NgSwitch {
|
||||
set ngSwitch(newValue: any);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue