angular2
Version:
Angular 2 - a web framework for modern web apps
110 lines • 11.7 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
import { Injectable, Inject, Optional } from 'angular2/core';
import { LocationStrategy, APP_BASE_HREF } from './location_strategy';
import { Location } from './location';
import { PlatformLocation } from './platform_location';
import { isPresent } from 'angular2/src/facade/lang';
/**
* `HashLocationStrategy` is a {@link LocationStrategy} used to configure the
* {@link Location} service to represent its state in the
* [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)
* of the browser's URL.
*
* For instance, if you call `location.go('/foo')`, the browser's URL will become
* `example.com#/foo`.
*
* ### Example
*
* ```
* import {Component, provide} from 'angular2/core';
* import {
* Location,
* LocationStrategy,
* HashLocationStrategy
* } from 'angular2/platform/common';
* import {
* ROUTER_DIRECTIVES,
* ROUTER_PROVIDERS,
* RouteConfig
* } from 'angular2/router';
*
* @Component({directives: [ROUTER_DIRECTIVES]})
* @RouteConfig([
* {...},
* ])
* class AppCmp {
* constructor(location: Location) {
* location.go('/foo');
* }
* }
*
* bootstrap(AppCmp, [
* ROUTER_PROVIDERS,
* provide(LocationStrategy, {useClass: HashLocationStrategy})
* ]);
* ```
*/
export let HashLocationStrategy = class HashLocationStrategy extends LocationStrategy {
constructor(_platformLocation, _baseHref) {
super();
this._platformLocation = _platformLocation;
this._baseHref = '';
if (isPresent(_baseHref)) {
this._baseHref = _baseHref;
}
}
onPopState(fn) {
this._platformLocation.onPopState(fn);
this._platformLocation.onHashChange(fn);
}
getBaseHref() { return this._baseHref; }
path() {
// the hash value is always prefixed with a `#`
// and if it is empty then it will stay empty
var path = this._platformLocation.hash;
if (!isPresent(path))
path = '#';
// Dart will complain if a call to substring is
// executed with a position value that extends the
// length of string.
return (path.length > 0 ? path.substring(1) : path);
}
prepareExternalUrl(internal) {
var url = Location.joinWithSlash(this._baseHref, internal);
return url.length > 0 ? ('#' + url) : url;
}
pushState(state, title, path, queryParams) {
var url = this.prepareExternalUrl(path + Location.normalizeQueryParams(queryParams));
if (url.length == 0) {
url = this._platformLocation.pathname;
}
this._platformLocation.pushState(state, title, url);
}
replaceState(state, title, path, queryParams) {
var url = this.prepareExternalUrl(path + Location.normalizeQueryParams(queryParams));
if (url.length == 0) {
url = this._platformLocation.pathname;
}
this._platformLocation.replaceState(state, title, url);
}
forward() { this._platformLocation.forward(); }
back() { this._platformLocation.back(); }
};
HashLocationStrategy = __decorate([
Injectable(),
__param(1, Optional()),
__param(1, Inject(APP_BASE_HREF)),
__metadata('design:paramtypes', [PlatformLocation, String])
], HashLocationStrategy);
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