66 lines
1.9 KiB
TypeScript
66 lines
1.9 KiB
TypeScript
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import {ComponentFactory} from 'angular2/core';
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import {StringMapWrapper, ListWrapper} from 'angular2/src/facade/collection';
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import {Type, isBlank} from 'angular2/src/facade/lang';
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export class Tree<T> {
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constructor(private _nodes: T[]) {}
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get root(): T { return this._nodes[0]; }
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parent(t: T): T {
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let index = this._nodes.indexOf(t);
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return index > 0 ? this._nodes[index - 1] : null;
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}
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children(t: T): T[] {
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let index = this._nodes.indexOf(t);
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return index > -1 && index < this._nodes.length - 1 ? [this._nodes[index + 1]] : [];
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}
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firstChild(t: T): T {
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let index = this._nodes.indexOf(t);
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return index > -1 && index < this._nodes.length - 1 ? this._nodes[index + 1] : null;
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}
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pathToRoot(t: T): T[] {
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let index = this._nodes.indexOf(t);
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return index > -1 ? this._nodes.slice(0, index + 1) : null;
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}
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}
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export class UrlSegment {
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constructor(public segment: string, public parameters: {[key: string]: string},
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public outlet: string) {}
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}
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export class RouteSegment {
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/** @internal */
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_type: Type;
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/** @internal */
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_componentFactory: ComponentFactory;
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/** @internal */
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_parameters: {[key: string]: string};
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constructor(public urlSegments: UrlSegment[], parameters: {[key: string]: string},
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public outlet: string, type: Type, componentFactory: ComponentFactory) {
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this._type = type;
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this._componentFactory = componentFactory;
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this._parameters = parameters;
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}
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getParam(param: string): string { return this._parameters[param]; }
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get type(): Type { return this._type; }
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}
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export function equalSegments(a: RouteSegment, b: RouteSegment): boolean {
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if (isBlank(a) && !isBlank(b)) return false;
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if (!isBlank(a) && isBlank(b)) return false;
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return a._type === b._type && StringMapWrapper.equals(a._parameters, b._parameters);
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}
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export function routeSegmentComponentFactory(a: RouteSegment): ComponentFactory {
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return a._componentFactory;
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}
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