forked from EVOgeek/Vmeda.Online
360 lines
12 KiB
TypeScript
360 lines
12 KiB
TypeScript
// (C) Copyright 2015 Martin Dougiamas
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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, Injector } from '@angular/core';
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import { NavController, NavOptions } from 'ionic-angular';
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import { SafeUrl } from '@angular/platform-browser';
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import { CoreEventsProvider } from '@providers/events';
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import { CoreLoggerProvider } from '@providers/logger';
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import { CoreSitesProvider } from '@providers/sites';
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import { CoreCourseProvider } from './course';
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import { CoreSite } from '@classes/site';
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import { CoreCourseModuleDefaultHandler } from './default-module';
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import { CoreDelegate, CoreDelegateHandler } from '@classes/delegate';
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/**
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* Interface that all course module handlers must implement.
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*/
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export interface CoreCourseModuleHandler extends CoreDelegateHandler {
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/**
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* Name of the module. It should match the "modname" of the module returned in core_course_get_contents.
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* @type {string}
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*/
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modName: string;
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/**
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* List of supported features. The keys should be the name of the feature.
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* This is to replicate the "plugin_supports" function of Moodle.
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* If you need some dynamic checks please implement the supportsFeature function.
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* @type {{[name: string]: any}}
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*/
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supportedFeatures?: {[name: string]: any};
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/**
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* Get the data required to display the module in the course contents view.
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*
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* @param {any} module The module object.
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* @param {number} courseId The course ID.
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* @param {number} sectionId The section ID.
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* @return {CoreCourseModuleHandlerData} Data to render the module.
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*/
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getData(module: any, courseId: number, sectionId: number): CoreCourseModuleHandlerData;
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/**
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* Get the component to render the module. This is needed to support singleactivity course format.
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* The component returned must implement CoreCourseModuleMainComponent.
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* It's recommended to return the class of the component, but you can also return an instance of the component.
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*
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* @param {Injector} injector Injector.
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* @param {any} course The course object.
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* @param {any} module The module object.
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* @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
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*/
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getMainComponent(injector: Injector, course: any, module: any): any | Promise<any>;
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/**
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* Whether to display the course refresher in single activity course format. If it returns false, a refresher must be
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* included in the template that calls the doRefresh method of the component. Defaults to true.
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*
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* @return {boolean} Whether the refresher should be displayed.
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*/
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displayRefresherInSingleActivity?(): boolean;
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/**
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* Get the icon src for the module.
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*
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* @return {string} The icon src.
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*/
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getIconSrc?(): string;
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/**
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* Check if this type of module supports a certain feature.
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* If this function is implemented, the supportedFeatures object will be ignored.
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*
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* @param {string} feature The feature to check.
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* @return {any} The result of the supports check.
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*/
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supportsFeature?(feature: string): any;
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}
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/**
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* Data needed to render the module in course contents.
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*/
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export interface CoreCourseModuleHandlerData {
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/**
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* The title to display in the module.
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* @type {string}
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*/
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title: string;
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/**
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* The accessibility title to use in the module. If not provided, title will be used.
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* @type {string}
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*/
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a11yTitle?: string;
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/**
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* The image to use as icon (path to the image).
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* @type {string}
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*/
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icon?: string | SafeUrl;
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/**
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* The class to assign to the item.
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* @type {string}
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*/
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class?: string;
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/**
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* The text to show in an extra badge.
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* @type {string}
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*/
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extraBadge?: string;
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/**
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* The color of the extra badge. Default: primary.
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* @type {string}
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*/
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extraBadgeColor?: string;
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/**
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* Whether to display a button to download/refresh the module if it's downloadable.
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* If it's set to true, the app will show a download/refresh button when needed and will handle the download of the
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* module using CoreCourseModulePrefetchDelegate.
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* @type {boolean}
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*/
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showDownloadButton?: boolean;
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/**
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* The buttons to display in the module item.
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* @type {CoreCourseModuleHandlerButton[]}
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*/
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buttons?: CoreCourseModuleHandlerButton[];
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/**
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* Whether to display a spinner in the module item.
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* @type {boolean}
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*/
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spinner?: boolean;
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/**
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* Action to perform when the module is clicked.
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*
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* @param {Event} event The click event.
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* @param {NavController} navCtrl NavController instance.
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* @param {any} module The module object.
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* @param {number} courseId The course ID.
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* @param {NavOptions} [options] Options for the navigation.
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* @param {any} [params] Params for the new page.
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*/
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action?(event: Event, navCtrl: NavController, module: any, courseId: number, options?: NavOptions, params?: any): void;
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/**
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* Updates the status of the module.
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*
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* @param {string} status Module status.
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*/
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updateStatus?(status: string): void;
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/**
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* On Destroy function in case it's needed.
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*/
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onDestroy?(): void;
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}
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/**
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* Interface that all the components to render the module in singleactivity must implement.
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*/
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export interface CoreCourseModuleMainComponent {
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/**
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* Refresh the data.
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*
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* @param {any} [refresher] Refresher.
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* @param {Function} [done] Function to call when done.
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* @return {Promise<any>} Promise resolved when done.
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*/
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doRefresh(refresher?: any, done?: () => void): Promise<any>;
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}
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/**
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* A button to display in a module item.
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*/
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export interface CoreCourseModuleHandlerButton {
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/**
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* The label to add to the button.
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* @type {string}
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*/
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label: string;
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/**
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* The name of the button icon.
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* @type {string}
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*/
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icon: string;
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/**
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* Whether the button should be hidden.
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* @type {boolean}
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*/
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hidden?: boolean;
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/**
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* The name of the button icon to use in iOS instead of "icon".
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* @type {string}
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*/
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iosIcon?: string;
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/**
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* The name of the button icon to use in MaterialDesign instead of "icon".
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* @type {string}
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*/
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mdIcon?: string;
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/**
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* Action to perform when the button is clicked.
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*
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* @param {Event} event The click event.
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* @param {NavController} navCtrl NavController instance.
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* @param {any} module The module object.
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* @param {number} courseId The course ID.
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*/
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action(event: Event, navCtrl: NavController, module: any, courseId: number): void;
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}
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/**
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* Delegate to register module handlers.
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*/
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@Injectable()
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export class CoreCourseModuleDelegate extends CoreDelegate {
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protected featurePrefix = 'CoreCourseModuleDelegate_';
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protected handlerNameProperty = 'modName';
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constructor(loggerProvider: CoreLoggerProvider, protected sitesProvider: CoreSitesProvider, eventsProvider: CoreEventsProvider,
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protected courseProvider: CoreCourseProvider, protected defaultHandler: CoreCourseModuleDefaultHandler) {
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super('CoreCourseModuleDelegate', loggerProvider, sitesProvider, eventsProvider);
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}
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/**
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* Get the component to render the module.
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*
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* @param {Injector} injector Injector.
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* @param {any} course The course object.
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* @param {any} module The module object.
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* @return {Promise<any>} Promise resolved with component to use, undefined if not found.
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*/
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getMainComponent(injector: Injector, course: any, module: any): Promise<any> {
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return Promise.resolve(this.executeFunctionOnEnabled(module.modname, 'getMainComponent', [injector, course, module]))
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.catch((err) => {
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this.logger.error('Error getting main component', err);
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});
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}
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/**
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* Get the data required to display the module in the course contents view.
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*
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* @param {string} modname The name of the module type.
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* @param {any} module The module object.
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* @param {number} courseId The course ID.
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* @param {number} sectionId The section ID.
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* @return {CoreCourseModuleHandlerData} Data to render the module.
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*/
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getModuleDataFor(modname: string, module: any, courseId: number, sectionId: number): CoreCourseModuleHandlerData {
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return this.executeFunctionOnEnabled(modname, 'getData', [module, courseId, sectionId]);
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}
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/**
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* Check if a certain module type is disabled in a site.
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*
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* @param {string} modname The name of the module type.
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* @param {string} [siteId] Site ID. If not defined, current site.
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* @return {Promise<boolean>} Promise resolved with boolean: whether module is disabled.
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*/
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isModuleDisabled(modname: string, siteId?: string): Promise<boolean> {
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return this.sitesProvider.getSite(siteId).then((site) => {
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return this.isModuleDisabledInSite(modname, site);
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});
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}
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/**
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* Check if a certain module type is disabled in a site.
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*
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* @param {string} modname The name of the module type.
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* @param {CoreSite} [site] Site. If not defined, use current site.
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* @return {boolean} Whether module is disabled.
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*/
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isModuleDisabledInSite(modname: string, site?: CoreSite): boolean {
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const handler = this.getHandler(modname, true);
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if (handler) {
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site = site || this.sitesProvider.getCurrentSite();
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return this.isFeatureDisabled(handler, site);
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}
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return false;
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}
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/**
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* Whether to display the course refresher in single activity course format. If it returns false, a refresher must be
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* included in the template that calls the doRefresh method of the component. Defaults to true.
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*
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* @param {any} modname The name of the module type.
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* @return {boolean} Whether the refresher should be displayed.
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*/
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displayRefresherInSingleActivity(modname: string): boolean {
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return this.executeFunctionOnEnabled(modname, 'displayRefresherInSingleActivity');
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}
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/**
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* Get the icon src for a certain type of module.
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*
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* @param {any} modname The name of the module type.
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* @param {string} [modicon] The mod icon string.
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* @return {string} The icon src.
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*/
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getModuleIconSrc(modname: string, modicon?: string): string {
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return this.executeFunctionOnEnabled(modname, 'getIconSrc') || this.courseProvider.getModuleIconSrc(modname, modicon);
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}
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/**
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* Check if a certain type of module supports a certain feature.
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*
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* @param {string} modname The modname.
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* @param {string} feature The feature to check.
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* @param {any} defaultValue Value to return if the module is not supported or doesn't know if it's supported.
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* @return {any} The result of the supports check.
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*/
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supportsFeature(modname: string, feature: string, defaultValue: any): any {
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const handler = this.enabledHandlers[modname];
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let result;
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if (handler) {
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if (handler['supportsFeature']) {
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// The handler specified a function to determine the feature, use it.
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result = handler['supportsFeature'].apply(handler, [feature]);
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} else if (handler['supportedFeatures']) {
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// Handler has an object to determine the feature, use it.
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result = handler['supportedFeatures'][feature];
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}
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}
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if (result === null || typeof result == 'undefined') {
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// Not supported or doesn't know, return defaul.
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return defaultValue;
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} else {
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return result;
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}
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}
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}
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