redoc/lib/components/JsonSchema/json-schema-lazy.js

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'use strict';
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import {Component, ElementRef, ViewContainerRef} from 'angular2/core';
import {CORE_DIRECTIVES} from 'angular2/common';
import {DynamicComponentLoader} from 'angular2/src/core/linker/dynamic_component_loader';
import JsonSchema from './json-schema';
import OptionsManager from '../../options';
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import SchemaManager from '../../utils/SchemaManager';
var cache = {};
@Component({
selector: 'json-schema-lazy',
inputs: ['pointer', 'auto', 'skipReadOnly'],
template: '',
directives: [CORE_DIRECTIVES]
})
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@Reflect.metadata('parameters', [[SchemaManager], [ViewContainerRef], [ElementRef], [DynamicComponentLoader], [OptionsManager]])
export default class JsonSchemaLazy {
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constructor(schemaMgr, viewRef, elementRef, dcl, optionsMgr) {
this.viewRef = viewRef;
this.elementRef = elementRef;
this.dcl = dcl;
this.optionsMgr = optionsMgr;
this.schemaMgr = schemaMgr;
}
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normalizePointer() {
let schema = this.schemaMgr.byPointer(this.pointer);
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return schema && schema.$ref || this.pointer;
}
load() {
if (this.optionsMgr.options.disableLazySchemas) return;
if (this.loaded) return;
if (this.pointer) {
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this.dcl.loadNextToLocation(JsonSchema, this.viewRef).then((compRef) => {
this.initComponent(compRef);
// trigger change detection
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compRef.hostView.changeDetectorRef.detectChanges();
});
}
this.loaded = true;
}
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// cache JsonSchema view
loadCached() {
this.pointer = this.normalizePointer(this.pointer);
if (cache[this.pointer]) {
cache[this.pointer].then((compRef) => {
setTimeout( ()=> {
let $element = compRef.location.nativeElement;
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// skip caching view with tabs inside (discriminator) as it needs attached controller
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// FIXME: get rid of dependency on selector
if ($element.querySelector('.discriminator-wrap')) {
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this.dcl.loadNextToLocation(JsonSchema, this.viewRef).then((compRef) => {
this.initComponent(compRef);
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compRef.hostView.changeDetectorRef.detectChanges();
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});
return;
}
insertAfter($element.cloneNode(true), this.elementRef.nativeElement);
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} );
});
} else {
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cache[this.pointer] = this.dcl.loadNextToLocation(JsonSchema, this.viewRef).then((compRef) => {
this.initComponent(compRef);
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compRef.hostView.changeDetectorRef.detectChanges();
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return compRef;
});
}
}
initComponent(compRef) {
compRef.instance.pointer = this.pointer;
compRef.instance.skipReadOnly = this.skipReadOnly;
}
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ngAfterViewInit() {
if (!this.auto) return;
this.loadCached();
}
ngOnDestroy() {
// clear cache
cache = {};
}
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}
function insertAfter(newNode, referenceNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
}