ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
206 lines • 16.3 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @license
* Copyright Alibaba.com 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://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core';
export class NzStringTemplateOutletDirective {
/**
* @param {?} viewContainer
* @param {?} defaultTemplate
*/
constructor(viewContainer, defaultTemplate) {
this.viewContainer = viewContainer;
this.defaultTemplate = defaultTemplate;
// tslint:disable-next-line:no-any
this.inputTemplate = null;
this.inputViewRef = null;
this.defaultViewRef = null;
// tslint:disable-next-line:no-any
this.nzStringTemplateOutletContext = null;
}
/**
* @param {?} value
* @return {?}
*/
set nzStringTemplateOutlet(value) {
if (value instanceof TemplateRef) {
this.isTemplate = true;
this.inputTemplate = value;
}
else {
this.isTemplate = false;
}
}
/**
* @return {?}
*/
recreateView() {
if (!this.isTemplate) {
/** use default template when input is string **/
if (!this.defaultViewRef) {
if (this.defaultTemplate) {
this.defaultViewRef = this.viewContainer.createEmbeddedView(this.defaultTemplate, this.nzStringTemplateOutletContext);
}
}
}
else {
/** use input template when input is templateRef **/
if (!this.inputViewRef) {
if (this.inputTemplate) {
this.inputViewRef = this.viewContainer.createEmbeddedView(this.inputTemplate, this.nzStringTemplateOutletContext);
}
}
}
}
// tslint:disable-next-line:no-any
/**
* @private
* @param {?} value
* @return {?}
*/
getType(value) {
if (value instanceof TemplateRef) {
return 'template';
}
else {
return 'string';
}
}
/**
* @private
* @param {?} changes
* @return {?}
*/
shouldRecreateView(changes) {
const { nzStringTemplateOutletContext, nzStringTemplateOutlet } = changes;
/** @type {?} */
let shouldOutletRecreate = false;
if (nzStringTemplateOutlet) {
if (nzStringTemplateOutlet.firstChange) {
shouldOutletRecreate = true;
}
else {
/** @type {?} */
const previousOutletType = this.getType(nzStringTemplateOutlet.previousValue);
/** @type {?} */
const currentOutletType = this.getType(nzStringTemplateOutlet.currentValue);
shouldOutletRecreate = !(previousOutletType === 'string' && currentOutletType === 'string');
}
}
/** @type {?} */
const shouldContextRecreate = nzStringTemplateOutletContext && this.hasContextShapeChanged(nzStringTemplateOutletContext);
return shouldContextRecreate || shouldOutletRecreate;
}
/**
* @private
* @param {?} ctxChange
* @return {?}
*/
hasContextShapeChanged(ctxChange) {
/** @type {?} */
const prevCtxKeys = Object.keys(ctxChange.previousValue || {});
/** @type {?} */
const currCtxKeys = Object.keys(ctxChange.currentValue || {});
if (prevCtxKeys.length === currCtxKeys.length) {
for (const propName of currCtxKeys) {
if (prevCtxKeys.indexOf(propName) === -1) {
return true;
}
}
return false;
}
else {
return true;
}
}
// tslint:disable-next-line:no-any
/**
* @private
* @param {?} ctx
* @return {?}
*/
updateExistingContext(ctx) {
for (const propName of Object.keys(ctx)) {
// tslint:disable-next-line:no-any
((/** @type {?} */ ((/** @type {?} */ (this.inputViewRef)).context)))[propName] = this.nzStringTemplateOutletContext[propName];
}
}
/**
* @param {?} changes
* @return {?}
*/
ngOnChanges(changes) {
/** @type {?} */
const recreateView = this.shouldRecreateView(changes);
if (recreateView) {
if (this.viewContainer) {
this.viewContainer.clear();
this.defaultViewRef = null;
this.inputViewRef = null;
}
this.recreateView();
}
else {
if (this.inputViewRef && this.nzStringTemplateOutletContext) {
this.updateExistingContext(this.nzStringTemplateOutletContext);
}
}
}
}
NzStringTemplateOutletDirective.decorators = [
{ type: Directive, args: [{
selector: '[nzStringTemplateOutlet]',
exportAs: 'nzStringTemplateOutlet'
},] }
];
/** @nocollapse */
NzStringTemplateOutletDirective.ctorParameters = () => [
{ type: ViewContainerRef },
{ type: TemplateRef }
];
NzStringTemplateOutletDirective.propDecorators = {
nzStringTemplateOutletContext: [{ type: Input }],
nzStringTemplateOutlet: [{ type: Input }]
};
if (false) {
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.isTemplate;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.inputTemplate;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.inputViewRef;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.defaultViewRef;
/** @type {?} */
NzStringTemplateOutletDirective.prototype.nzStringTemplateOutletContext;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.viewContainer;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.defaultTemplate;
}
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* @license\n * Copyright Alibaba.com All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE\n */\n\nimport {\n  Directive,\n  EmbeddedViewRef,\n  Input,\n  OnChanges,\n  SimpleChange,\n  SimpleChanges,\n  TemplateRef,\n  ViewContainerRef\n} from '@angular/core';\n\n@Directive({\n  selector: '[nzStringTemplateOutlet]',\n  exportAs: 'nzStringTemplateOutlet'\n})\nexport class NzStringTemplateOutletDirective implements OnChanges {\n  private isTemplate: boolean;\n  // tslint:disable-next-line:no-any\n  private inputTemplate: TemplateRef<any> | null = null;\n  private inputViewRef: EmbeddedViewRef<void> | null = null;\n  private defaultViewRef: EmbeddedViewRef<void> | null = null;\n\n  // tslint:disable-next-line:no-any\n  @Input() nzStringTemplateOutletContext: any | null = null;\n\n  @Input()\n  // tslint:disable-next-line:no-any\n  set nzStringTemplateOutlet(value: string | TemplateRef<any>) {\n    if (value instanceof TemplateRef) {\n      this.isTemplate = true;\n      this.inputTemplate = value;\n    } else {\n      this.isTemplate = false;\n    }\n  }\n\n  recreateView(): void {\n    if (!this.isTemplate) {\n      /** use default template when input is string **/\n      if (!this.defaultViewRef) {\n        if (this.defaultTemplate) {\n          this.defaultViewRef = this.viewContainer.createEmbeddedView(\n            this.defaultTemplate,\n            this.nzStringTemplateOutletContext\n          );\n        }\n      }\n    } else {\n      /** use input template when input is templateRef **/\n      if (!this.inputViewRef) {\n        if (this.inputTemplate) {\n          this.inputViewRef = this.viewContainer.createEmbeddedView(\n            this.inputTemplate,\n            this.nzStringTemplateOutletContext\n          );\n        }\n      }\n    }\n  }\n\n  // tslint:disable-next-line:no-any\n  private getType(value: string | TemplateRef<any>): 'template' | 'string' {\n    if (value instanceof TemplateRef) {\n      return 'template';\n    } else {\n      return 'string';\n    }\n  }\n\n  private shouldRecreateView(changes: SimpleChanges): boolean {\n    const { nzStringTemplateOutletContext, nzStringTemplateOutlet } = changes;\n    let shouldOutletRecreate = false;\n    if (nzStringTemplateOutlet) {\n      if (nzStringTemplateOutlet.firstChange) {\n        shouldOutletRecreate = true;\n      } else {\n        const previousOutletType = this.getType(nzStringTemplateOutlet.previousValue);\n        const currentOutletType = this.getType(nzStringTemplateOutlet.currentValue);\n        shouldOutletRecreate = !(previousOutletType === 'string' && currentOutletType === 'string');\n      }\n    }\n    const shouldContextRecreate =\n      nzStringTemplateOutletContext && this.hasContextShapeChanged(nzStringTemplateOutletContext);\n    return shouldContextRecreate || shouldOutletRecreate;\n  }\n\n  private hasContextShapeChanged(ctxChange: SimpleChange): boolean {\n    const prevCtxKeys = Object.keys(ctxChange.previousValue || {});\n    const currCtxKeys = Object.keys(ctxChange.currentValue || {});\n\n    if (prevCtxKeys.length === currCtxKeys.length) {\n      for (const propName of currCtxKeys) {\n        if (prevCtxKeys.indexOf(propName) === -1) {\n          return true;\n        }\n      }\n      return false;\n    } else {\n      return true;\n    }\n  }\n\n  // tslint:disable-next-line:no-any\n  private updateExistingContext(ctx: any): void {\n    for (const propName of Object.keys(ctx)) {\n      // tslint:disable-next-line:no-any\n      (this.inputViewRef!.context as any)[propName] = this.nzStringTemplateOutletContext[propName];\n    }\n  }\n\n  constructor(private viewContainer: ViewContainerRef, private defaultTemplate: TemplateRef<void>) {}\n\n  ngOnChanges(changes: SimpleChanges): void {\n    const recreateView = this.shouldRecreateView(changes);\n    if (recreateView) {\n      if (this.viewContainer) {\n        this.viewContainer.clear();\n        this.defaultViewRef = null;\n        this.inputViewRef = null;\n      }\n      this.recreateView();\n    } else {\n      if (this.inputViewRef && this.nzStringTemplateOutletContext) {\n        this.updateExistingContext(this.nzStringTemplateOutletContext);\n      }\n    }\n  }\n}\n"]}