113 lines
3.3 KiB
TypeScript
113 lines
3.3 KiB
TypeScript
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// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { Injectable } from '@angular/core';
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import { makeSingleton } from '@singletons/core.singletons';
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import { CoreLogger } from '@singletons/logger';
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/**
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* Data stored for a redirect to another page/site.
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*/
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export type CoreRedirectData = {
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/**
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* ID of the site to load.
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*/
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siteId?: string;
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/**
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* Name of the page to redirect to.
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*/
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page?: string;
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/**
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* Params to pass to the page.
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*/
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params?: any;
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/**
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* Timestamp when this redirect was last modified.
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*/
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timemodified?: number;
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};
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/**
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* Factory to provide some global functionalities, like access to the global app database.
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* @description
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* Each service or component should be responsible of creating their own database tables. Example:
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*
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* constructor(appProvider: CoreAppProvider) {
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* this.appDB = appProvider.getDB();
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* this.appDB.createTableFromSchema(this.tableSchema);
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* }
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*/
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@Injectable()
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export class CoreAppProvider {
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protected logger: CoreLogger;
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constructor() {
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this.logger = CoreLogger.getInstance('CoreAppProvider');
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}
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/**
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* Retrieve redirect data.
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*
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* @return Object with siteid, state, params and timemodified.
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*/
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getRedirect(): CoreRedirectData {
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if (localStorage && localStorage.getItem) {
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try {
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const data: CoreRedirectData = {
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siteId: localStorage.getItem('CoreRedirectSiteId'),
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page: localStorage.getItem('CoreRedirectState'),
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params: localStorage.getItem('CoreRedirectParams'),
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timemodified: parseInt(localStorage.getItem('CoreRedirectTime'), 10)
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};
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if (data.params) {
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data.params = JSON.parse(data.params);
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}
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return data;
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} catch (ex) {
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this.logger.error('Error loading redirect data:', ex);
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}
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}
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return {};
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}
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/**
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* Store redirect params.
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*
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* @param siteId Site ID.
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* @param page Page to go.
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* @param params Page params.
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*/
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storeRedirect(siteId: string, page: string, params: any): void {
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if (localStorage && localStorage.setItem) {
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try {
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localStorage.setItem('CoreRedirectSiteId', siteId);
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localStorage.setItem('CoreRedirectState', page);
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localStorage.setItem('CoreRedirectParams', JSON.stringify(params));
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localStorage.setItem('CoreRedirectTime', String(Date.now()));
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} catch (ex) {
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// Ignore errors.
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}
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}
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}
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}
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export class CoreApp extends makeSingleton(CoreAppProvider) {}
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