ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
178 lines • 14.8 kB
JavaScript
/**
* @fileoverview added by tsickle
* Generated from: string_template_outlet.directive.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* 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';
/**
* @template _T
*/
export class NzStringTemplateOutletDirective {
/**
* @param {?} viewContainer
* @param {?} templateRef
*/
constructor(viewContainer, templateRef) {
this.viewContainer = viewContainer;
this.templateRef = templateRef;
this.embeddedViewRef = null;
this.context = new NzStringTemplateOutletContext();
this.nzStringTemplateOutletContext = null;
this.nzStringTemplateOutlet = null;
}
/**
* @template T
* @param {?} _dir
* @param {?} _ctx
* @return {?}
*/
static ngTemplateContextGuard(_dir, _ctx) {
return true;
}
/**
* @private
* @return {?}
*/
recreateView() {
this.viewContainer.clear();
/** @type {?} */
const isTemplateRef = this.nzStringTemplateOutlet instanceof TemplateRef;
/** @type {?} */
const templateRef = (/** @type {?} */ ((isTemplateRef ? this.nzStringTemplateOutlet : this.templateRef)));
this.embeddedViewRef = this.viewContainer.createEmbeddedView(templateRef, isTemplateRef ? this.nzStringTemplateOutletContext : this.context);
}
/**
* @private
* @return {?}
*/
updateContext() {
/** @type {?} */
const isTemplateRef = this.nzStringTemplateOutlet instanceof TemplateRef;
/** @type {?} */
const newCtx = isTemplateRef ? this.nzStringTemplateOutletContext : this.context;
/** @type {?} */
const oldCtx = (/** @type {?} */ ((/** @type {?} */ (this.embeddedViewRef)).context));
if (newCtx) {
for (const propName of Object.keys(newCtx)) {
oldCtx[propName] = newCtx[propName];
}
}
}
/**
* @param {?} changes
* @return {?}
*/
ngOnChanges(changes) {
const { nzStringTemplateOutletContext, nzStringTemplateOutlet } = changes;
/** @type {?} */
const shouldRecreateView = (/**
* @return {?}
*/
() => {
/** @type {?} */
let shouldOutletRecreate = false;
if (nzStringTemplateOutlet) {
if (nzStringTemplateOutlet.firstChange) {
shouldOutletRecreate = true;
}
else {
/** @type {?} */
const isPreviousOutletTemplate = nzStringTemplateOutlet.previousValue instanceof TemplateRef;
/** @type {?} */
const isCurrentOutletTemplate = nzStringTemplateOutlet.currentValue instanceof TemplateRef;
shouldOutletRecreate = isPreviousOutletTemplate || isCurrentOutletTemplate;
}
}
/** @type {?} */
const hasContextShapeChanged = (/**
* @param {?} ctxChange
* @return {?}
*/
(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;
}
});
/** @type {?} */
const shouldContextRecreate = nzStringTemplateOutletContext && hasContextShapeChanged(nzStringTemplateOutletContext);
return shouldContextRecreate || shouldOutletRecreate;
});
if (nzStringTemplateOutlet) {
this.context.$implicit = nzStringTemplateOutlet.currentValue;
}
/** @type {?} */
const recreateView = shouldRecreateView();
if (recreateView) {
/** recreate view when context shape or outlet change **/
this.recreateView();
}
else {
/** update context **/
this.updateContext();
}
}
}
NzStringTemplateOutletDirective.decorators = [
{ type: Directive, args: [{
selector: '[nzStringTemplateOutlet]',
exportAs: 'nzStringTemplateOutlet'
},] }
];
/** @nocollapse */
NzStringTemplateOutletDirective.ctorParameters = () => [
{ type: ViewContainerRef },
{ type: TemplateRef }
];
NzStringTemplateOutletDirective.propDecorators = {
nzStringTemplateOutletContext: [{ type: Input }],
nzStringTemplateOutlet: [{ type: Input }]
};
if (false) {
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.embeddedViewRef;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.context;
/** @type {?} */
NzStringTemplateOutletDirective.prototype.nzStringTemplateOutletContext;
/** @type {?} */
NzStringTemplateOutletDirective.prototype.nzStringTemplateOutlet;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.viewContainer;
/**
* @type {?}
* @private
*/
NzStringTemplateOutletDirective.prototype.templateRef;
}
export class NzStringTemplateOutletContext {
}
if (false) {
/** @type {?} */
NzStringTemplateOutletContext.prototype.$implicit;
}
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this.nzStringTemplateOutlet : this.templateRef) as NzSafeAny;\n    this.embeddedViewRef = this.viewContainer.createEmbeddedView(\n      templateRef,\n      isTemplateRef ? this.nzStringTemplateOutletContext : this.context\n    );\n  }\n\n  private updateContext(): void {\n    const isTemplateRef = this.nzStringTemplateOutlet instanceof TemplateRef;\n    const newCtx = isTemplateRef ? this.nzStringTemplateOutletContext : this.context;\n    const oldCtx = this.embeddedViewRef!.context as NzSafeAny;\n    if (newCtx) {\n      for (const propName of Object.keys(newCtx)) {\n        oldCtx[propName] = newCtx[propName];\n      }\n    }\n  }\n\n  constructor(private viewContainer: ViewContainerRef, private templateRef: TemplateRef<NzSafeAny>) {}\n\n  ngOnChanges(changes: SimpleChanges): void {\n    const { nzStringTemplateOutletContext, nzStringTemplateOutlet } = changes;\n    const shouldRecreateView = (): boolean => {\n      let shouldOutletRecreate = false;\n      if (nzStringTemplateOutlet) {\n        if (nzStringTemplateOutlet.firstChange) {\n          shouldOutletRecreate = true;\n        } else {\n          const isPreviousOutletTemplate = nzStringTemplateOutlet.previousValue instanceof TemplateRef;\n          const isCurrentOutletTemplate = nzStringTemplateOutlet.currentValue instanceof TemplateRef;\n          shouldOutletRecreate = isPreviousOutletTemplate || isCurrentOutletTemplate;\n        }\n      }\n      const hasContextShapeChanged = (ctxChange: SimpleChange): boolean => {\n        const prevCtxKeys = Object.keys(ctxChange.previousValue || {});\n        const currCtxKeys = Object.keys(ctxChange.currentValue || {});\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      const shouldContextRecreate = nzStringTemplateOutletContext && hasContextShapeChanged(nzStringTemplateOutletContext);\n      return shouldContextRecreate || shouldOutletRecreate;\n    };\n\n    if (nzStringTemplateOutlet) {\n      this.context.$implicit = nzStringTemplateOutlet.currentValue;\n    }\n\n    const recreateView = shouldRecreateView();\n    if (recreateView) {\n      /** recreate view when context shape or outlet change **/\n      this.recreateView();\n    } else {\n      /** update context **/\n      this.updateContext();\n    }\n  }\n}\n\nexport class NzStringTemplateOutletContext {\n  public $implicit: NzSafeAny;\n}\n"]}