Merge pull request #1308 from dpalou/MOBILE-2376

Mobile 2376

src/addon/messageoutput/providers/delegate.ts

@@ -82,7 +82,7 @@ export interface AddonMessageOutputHandlerData {
 
      constructor(protected loggerProvider: CoreLoggerProvider, protected sitesProvider: CoreSitesProvider,
              protected eventsProvider: CoreEventsProvider) {
-         super('CoreSettingsDelegate', loggerProvider, sitesProvider, eventsProvider);
+         super('AddonMessageOutputDelegate', loggerProvider, sitesProvider, eventsProvider);
      }
 
     /**

src/addon/messages/providers/mainmenu-handler.ts

@@ -129,7 +129,7 @@ export class AddonMessagesMainMenuHandler implements CoreMainMenuHandler, CoreCr
      */
     execute(siteId?: string): Promise<any> {
         if (this.sitesProvider.isCurrentSite(siteId)) {
-            this.eventsProvider.trigger(AddonMessagesProvider.READ_CRON_EVENT, undefined, siteId);
+            this.eventsProvider.trigger(AddonMessagesProvider.READ_CRON_EVENT, {}, siteId);
         }
 
         if (this.appProvider.isDesktop() && this.localNotificationsProvider.isAvailable()) {

src/addon/messages/providers/sync.ts

@@ -58,11 +58,12 @@ export class AddonMessagesSyncProvider extends CoreSyncBaseProvider {
 
     /**
      * Get all messages pending to be sent in the site.
-     * @param  {boolean} [onlyDeviceOffline=false] True to only sync discussions that failed because device was offline,
-     * @param  {string} [siteId]                   Site ID to sync. If not defined, sync all sites.
-     * @param {Promise<any>}     Promise resolved if sync is successful, rejected if sync fails.
+     *
+     * @param {string} [siteId] Site ID to sync. If not defined, sync all sites.
+     * @param {boolean} [onlyDeviceOffline=false] True to only sync discussions that failed because device was offline.
+     * @param {Promise<any>} Promise resolved if sync is successful, rejected if sync fails.
      */
-    protected syncAllDiscussionsFunc(onlyDeviceOffline: boolean = false, siteId?: string): Promise<any> {
+    protected syncAllDiscussionsFunc(siteId?: string, onlyDeviceOffline: boolean = false): Promise<any> {
         const promise = onlyDeviceOffline ?
             this.messagesOffline.getAllDeviceOfflineMessages(siteId) :
             this.messagesOffline.getAllMessages(siteId);

src/addon/mod/assign/providers/default-feedback-handler.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { TranslateService } from '@ngx-translate/core';
 import { AddonModAssignFeedbackHandler } from './feedback-delegate';
 
@@ -24,7 +24,43 @@ export class AddonModAssignDefaultFeedbackHandler implements AddonModAssignFeedb
     name = 'AddonModAssignDefaultFeedbackHandler';
     type = 'default';
 
-    constructor(private translate: TranslateService) { }
+    constructor(protected translate: TranslateService) { }
+
+    /**
+     * Discard the draft data of the feedback plugin.
+     *
+     * @param {number} assignId The assignment ID.
+     * @param {number} userId User ID.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    discardDraft(assignId: number, userId: number, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Return the Component to use to display the plugin data.
+     * It's recommended to return the class of the component, but you can also return an instance of the component.
+     *
+     * @param {Injector} injector Injector.
+     * @param {any} plugin The plugin object.
+     * @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
+     */
+    getComponent(injector: Injector, plugin: any): any | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Return the draft saved data of the feedback plugin.
+     *
+     * @param {number} assignId The assignment ID.
+     * @param {number} userId User ID.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {any|Promise<any>} Data (or promise resolved with the data).
+     */
+    getDraft(assignId: number, userId: number, siteId?: string): any | Promise<any> {
+        // Nothing to do.
+    }
 
     /**
      * Get files used by this plugin.
@@ -95,4 +131,46 @@ export class AddonModAssignDefaultFeedbackHandler implements AddonModAssignFeedb
     isEnabled(): boolean | Promise<boolean> {
         return true;
     }
+
+    /**
+     * Prefetch any required data for the plugin.
+     * This should NOT prefetch files. Files to be prefetched should be returned by the getPluginFiles function.
+     *
+     * @param {any} assign The assignment.
+     * @param {any} submission The submission.
+     * @param {any} plugin The plugin object.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    prefetch(assign: any, submission: any, plugin: any, siteId?: string): Promise<any> {
+        return Promise.resolve();
+    }
+
+    /**
+     * Prepare and add to pluginData the data to send to the server based on the draft data saved.
+     *
+     * @param {number} assignId The assignment ID.
+     * @param {number} userId User ID.
+     * @param {any} plugin The plugin object.
+     * @param {any} pluginData Object where to store the data to send.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    prepareFeedbackData(assignId: number, userId: number, plugin: any, pluginData: any, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Save draft data of the feedback plugin.
+     *
+     * @param {number} assignId The assignment ID.
+     * @param {number} userId User ID.
+     * @param {any} plugin The plugin object.
+     * @param {any} data The data to save.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    saveDraft(assignId: number, userId: number, plugin: any, data: any, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
 }

src/addon/mod/assign/providers/default-submission-handler.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { TranslateService } from '@ngx-translate/core';
 import { AddonModAssignSubmissionHandler } from './submission-delegate';
 
@@ -24,7 +24,7 @@ export class AddonModAssignDefaultSubmissionHandler implements AddonModAssignSub
     name = 'AddonModAssignDefaultSubmissionHandler';
     type = 'default';
 
-    constructor(private translate: TranslateService) { }
+    constructor(protected translate: TranslateService) { }
 
     /**
      * Whether the plugin can be edited in offline for existing submissions. In general, this should return false if the
@@ -40,6 +40,60 @@ export class AddonModAssignDefaultSubmissionHandler implements AddonModAssignSub
         return false;
     }
 
+    /**
+     * Should clear temporary data for a cancelled submission.
+     *
+     * @param {any} assign The assignment.
+     * @param {any} submission The submission.
+     * @param {any} plugin The plugin object.
+     * @param {any} inputData Data entered by the user for the submission.
+     */
+    clearTmpData(assign: any, submission: any, plugin: any, inputData: any): void {
+        // Nothing to do.
+    }
+
+    /**
+     * This function will be called when the user wants to create a new submission based on the previous one.
+     * It should add to pluginData the data to send to server based in the data in plugin (previous attempt).
+     *
+     * @param {any} assign The assignment.
+     * @param {any} plugin The plugin object.
+     * @param {any} pluginData Object where to store the data to send.
+     * @param {number} [userId] User ID. If not defined, site's current user.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    copySubmissionData(assign: any, plugin: any, pluginData: any, userId?: number, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Delete any stored data for the plugin and submission.
+     *
+     * @param {any} assign The assignment.
+     * @param {any} submission The submission.
+     * @param {any} plugin The plugin object.
+     * @param {any} offlineData Offline data stored.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    deleteOfflineData(assign: any, submission: any, plugin: any, offlineData: any, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Return the Component to use to display the plugin data, either in read or in edit mode.
+     * It's recommended to return the class of the component, but you can also return an instance of the component.
+     *
+     * @param {Injector} injector Injector.
+     * @param {any} plugin The plugin object.
+     * @param {boolean} [edit] Whether the user is editing.
+     * @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
+     */
+    getComponent(injector: Injector, plugin: any, edit?: boolean): any | Promise<any> {
+        // Nothing to do.
+    }
+
     /**
      * Get files used by this plugin.
      * The files returned by this function will be prefetched when the user prefetches the assign.
@@ -127,4 +181,53 @@ export class AddonModAssignDefaultSubmissionHandler implements AddonModAssignSub
     isEnabledForEdit(): boolean | Promise<boolean> {
         return false;
     }
+
+    /**
+     * Prefetch any required data for the plugin.
+     * This should NOT prefetch files. Files to be prefetched should be returned by the getPluginFiles function.
+     *
+     * @param {any} assign The assignment.
+     * @param {any} submission The submission.
+     * @param {any} plugin The plugin object.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    prefetch(assign: any, submission: any, plugin: any, siteId?: string): Promise<any> {
+        return Promise.resolve();
+    }
+
+    /**
+     * Prepare and add to pluginData the data to send to the server based on the input data.
+     *
+     * @param {any} assign The assignment.
+     * @param {any} submission The submission.
+     * @param {any} plugin The plugin object.
+     * @param {any} inputData Data entered by the user for the submission.
+     * @param {any} pluginData Object where to store the data to send.
+     * @param {boolean} [offline] Whether the user is editing in offline.
+     * @param {number} [userId] User ID. If not defined, site's current user.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    prepareSubmissionData?(assign: any, submission: any, plugin: any, inputData: any, pluginData: any, offline?: boolean,
+            userId?: number, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Prepare and add to pluginData the data to send to the server based on the offline data stored.
+     * This will be used when performing a synchronization.
+     *
+     * @param {any} assign The assignment.
+     * @param {any} submission The submission.
+     * @param {any} plugin The plugin object.
+     * @param {any} offlineData Offline data stored.
+     * @param {any} pluginData Object where to store the data to send.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} If the function is async, it should return a Promise resolved when done.
+     */
+    prepareSyncData?(assign: any, submission: any, plugin: any, offlineData: any, pluginData: any, siteId?: string)
+            : void | Promise<any> {
+        // Nothing to do.
+    }
 }

src/addon/mod/quiz/accessrules/offlineattempts/component/offlineattempts.ts

@@ -24,6 +24,7 @@ import { FormGroup, FormBuilder } from '@angular/forms';
 })
 export class AddonModQuizAccessOfflineAttemptsComponent implements OnInit {
 
+    @Input() rule: string; // The name of the rule.
     @Input() quiz: any; // The quiz the rule belongs to.
     @Input() attempt: any; // The attempt being started/continued.
     @Input() prefetch: boolean; // Whether the user is prefetching the quiz.

src/addon/mod/quiz/accessrules/password/component/password.ts

@@ -24,6 +24,7 @@ import { FormGroup, FormBuilder } from '@angular/forms';
 })
 export class AddonModQuizAccessPasswordComponent implements OnInit {
 
+    @Input() rule: string; // The name of the rule.
     @Input() quiz: any; // The quiz the rule belongs to.
     @Input() attempt: any; // The attempt being started/continued.
     @Input() prefetch: boolean; // Whether the user is prefetching the quiz.

src/addon/mod/quiz/accessrules/timelimit/component/timelimit.ts

@@ -24,6 +24,7 @@ import { FormGroup } from '@angular/forms';
 })
 export class AddonModQuizAccessTimeLimitComponent {
 
+    @Input() rule: string; // The name of the rule.
     @Input() quiz: any; // The quiz the rule belongs to.
     @Input() attempt: any; // The attempt being started/continued.
     @Input() prefetch: boolean; // Whether the user is prefetching the quiz.

src/addon/mod/quiz/pages/preflight-modal/preflight-modal.html

@@ -12,8 +12,8 @@
     <core-loading [hideUntil]="loaded">
         <form ion-list [formGroup]="preflightForm" (ngSubmit)="sendData()">
             <!-- Access rules. -->
-            <ng-container *ngFor="let componentClass of accessRulesComponent; let last = last">
-                <core-dynamic-component [component]="componentClass" [data]="data">
+            <ng-container *ngFor="let data of accessRulesData; let last = last">
+                <core-dynamic-component [component]="data.component" [data]="data.data">
                     <p padding>Couldn't find the directive to render this access rule.</p>
                 </core-dynamic-component>
                 <ion-item-divider color="light" *ngIf="!last"></ion-item-divider>

src/addon/mod/quiz/pages/preflight-modal/preflight-modal.ts

@@ -34,8 +34,7 @@ export class AddonModQuizPreflightModalPage implements OnInit {
 
     preflightForm: FormGroup;
     title: string;
-    accessRulesComponent: any[] = [];
-    data: any;
+    accessRulesData: {component: any, data: any}[] = []; // Components and data for each access rule.
     loaded: boolean;
 
     protected quiz: any;
@@ -43,7 +42,6 @@ export class AddonModQuizPreflightModalPage implements OnInit {
     protected prefetch: boolean;
     protected siteId: string;
     protected rules: string[];
-    protected renderedRules: string[] = [];
 
     constructor(params: NavParams, fb: FormBuilder, translate: TranslateService, sitesProvider: CoreSitesProvider,
             protected viewCtrl: ViewController, protected accessRuleDelegate: AddonModQuizAccessRuleDelegate,
@@ -58,15 +56,6 @@ export class AddonModQuizPreflightModalPage implements OnInit {
 
         // Create an empty form group. The controls will be added by the access rules components.
         this.preflightForm = fb.group({});
-
-        // Create the data to pass to the access rules components.
-        this.data = {
-            quiz: this.quiz,
-            attempt: this.attempt,
-            prefetch: this.prefetch,
-            form: this.preflightForm,
-            siteId: this.siteId
-        };
     }
 
     /**
@@ -83,8 +72,17 @@ export class AddonModQuizPreflightModalPage implements OnInit {
                 if (required) {
                     return this.accessRuleDelegate.getPreflightComponent(rule, this.injector).then((component) => {
                         if (component) {
-                            this.renderedRules.push(rule);
-                            this.accessRulesComponent.push(component);
+                            this.accessRulesData.push({
+                                component: component,
+                                data: {
+                                    rule: rule,
+                                    quiz: this.quiz,
+                                    attempt: this.attempt,
+                                    prefetch: this.prefetch,
+                                    form: this.preflightForm,
+                                    siteId: this.siteId
+                                }
+                            });
                         }
                     });
                 }

src/addon/pushnotifications/providers/pushnotifications.ts

@@ -264,6 +264,11 @@ export class AddonPushNotificationsProvider {
                     return previous + parseInt(counter, 10);
                 }, 0);
 
+                if (!this.appProvider.isDesktop() && !this.appProvider.isMobile()) {
+                    // Browser doesn't have an app badge, stop.
+                    return total;
+                }
+
                 // Set the app badge.
                 return this.badge.set(total).then(() => {
                     return total;

src/addon/qbehaviour/adaptive/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
 
@@ -34,11 +34,12 @@ export class AddonQbehaviourAdaptiveHandler implements CoreQuestionBehaviourHand
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Just extract the button, it doesn't need any specific component.
         this.questionHelper.extractQbehaviourButtons(question);
 

src/addon/qbehaviour/adaptivenopenalty/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
 
@@ -34,11 +34,12 @@ export class AddonQbehaviourAdaptiveNoPenaltyHandler implements CoreQuestionBeha
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Just extract the button, it doesn't need any specific component.
         this.questionHelper.extractQbehaviourButtons(question);
 

src/addon/qbehaviour/deferredcbm/component/deferredcbm.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component, Input, EventEmitter } from '@angular/core';
+import { Component, Input, Output, EventEmitter } from '@angular/core';
 
 /**
  * Component to render the deferred CBM in a question.
@@ -27,8 +27,8 @@ export class AddonQbehaviourDeferredCBMComponent {
     @Input() componentId: number; // ID of the component the question belongs to.
     @Input() attemptId: number; // Attempt ID.
     @Input() offlineEnabled?: boolean | string; // Whether the question can be answered in offline.
-    @Input() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
-    @Input() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
+    @Output() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
+    @Output() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
 
     constructor() {
         // Nothing to do.

src/addon/qbehaviour/deferredcbm/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionDelegate } from '@core/question/providers/delegate';
 import { CoreQuestionState } from '@core/question/providers/question';
@@ -55,11 +55,12 @@ export class AddonQbehaviourDeferredCBMHandler implements CoreQuestionBehaviourH
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         if (this.questionHelper.extractQbehaviourCBM(question)) {
             return [AddonQbehaviourDeferredCBMComponent];
         }

src/addon/qbehaviour/immediatecbm/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
 import { AddonQbehaviourDeferredCBMComponent } from '@addon/qbehaviour/deferredcbm/component/deferredcbm';
@@ -35,11 +35,12 @@ export class AddonQbehaviourImmediateCBMHandler implements CoreQuestionBehaviour
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Just extract the button, it doesn't need any specific component.
         this.questionHelper.extractQbehaviourButtons(question);
         if (this.questionHelper.extractQbehaviourCBM(question)) {

src/addon/qbehaviour/immediatefeedback/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
 
@@ -34,11 +34,12 @@ export class AddonQbehaviourImmediateFeedbackHandler implements CoreQuestionBeha
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Just extract the button, it doesn't need any specific component.
         this.questionHelper.extractQbehaviourButtons(question);
 

src/addon/qbehaviour/informationitem/component/informationitem.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component, Input, EventEmitter } from '@angular/core';
+import { Component, Input, Output, EventEmitter } from '@angular/core';
 
 /**
  * Component to render a "seen" hidden input for informationitem question behaviour.
@@ -27,8 +27,8 @@ export class AddonQbehaviourInformationItemComponent {
     @Input() componentId: number; // ID of the component the question belongs to.
     @Input() attemptId: number; // Attempt ID.
     @Input() offlineEnabled?: boolean | string; // Whether the question can be answered in offline.
-    @Input() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
-    @Input() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
+    @Output() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
+    @Output() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
 
     constructor() {
         // Nothing to do.

src/addon/qbehaviour/informationitem/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionProvider, CoreQuestionState } from '@core/question/providers/question';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
@@ -52,11 +52,12 @@ export class AddonQbehaviourInformationItemHandler implements CoreQuestionBehavi
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         if (this.questionHelper.extractQbehaviourSeenInput(question)) {
             return [AddonQbehaviourInformationItemComponent];
         }

src/addon/qbehaviour/interactive/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
 
@@ -34,11 +34,12 @@ export class AddonQbehaviourInteractiveHandler implements CoreQuestionBehaviourH
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Just extract the button, it doesn't need any specific component.
         this.questionHelper.extractQbehaviourButtons(question);
 

src/addon/qbehaviour/interactivecountback/providers/handler.ts

@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from '@core/question/providers/behaviour-delegate';
 import { CoreQuestionHelperProvider } from '@core/question/providers/helper';
 
@@ -34,11 +34,12 @@ export class AddonQbehaviourInteractiveCountbackHandler implements CoreQuestionB
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Just extract the button, it doesn't need any specific component.
         this.questionHelper.extractQbehaviourButtons(question);
 

src/addon/remotethemes/providers/remotethemes.ts

@@ -133,24 +133,26 @@ export class AddonRemoteThemesProvider {
      * Get remote styles of a certain site.
      *
      * @param {string} [siteId] Site ID. If not defined, current site.
-     * @return {Promise<{fileUrl: string, styles: string}>} Promise resolved with the styles and the URL of the CSS file.
+     * @return {Promise<{fileUrl: string, styles: string}>} Promise resolved with the styles and the URL of the CSS file,
+     *                                                      resolved with undefined if no styles to load.
      */
     get(siteId?: string): Promise<{fileUrl: string, styles: string}> {
         siteId = siteId || this.sitesProvider.getCurrentSiteId();
 
-        let fileUrl;
-
         return this.sitesProvider.getSite(siteId).then((site) => {
             const infos = site.getInfo();
+            let promise,
+                fileUrl;
+
             if (infos && infos.mobilecssurl) {
                 fileUrl = infos.mobilecssurl;
 
                 if (this.fileProvider.isAvailable()) {
                     // The file system is available. Download the file and remove old CSS files if needed.
-                    return this.downloadFileAndRemoveOld(siteId, fileUrl);
+                    promise = this.downloadFileAndRemoveOld(siteId, fileUrl);
                 } else {
                     // Return the online URL.
-                    return fileUrl;
+                    promise = Promise.resolve(fileUrl);
                 }
             } else {
                 if (infos && infos.mobilecssurl === '') {
@@ -158,20 +160,22 @@ export class AddonRemoteThemesProvider {
                     this.filepoolProvider.removeFilesByComponent(siteId, AddonRemoteThemesProvider.COMPONENT, 1);
                 }
 
-                return Promise.reject(null);
+                return;
             }
-        }).then((url) => {
-            this.logger.debug('Loading styles from: ', url);
 
-            // Get the CSS content using HTTP because we will treat the styles before saving them in the file.
-            return this.http.get(url).toPromise();
-        }).then((response): any => {
-            const text = response && response.text();
-            if (typeof text == 'string') {
-                return {fileUrl: fileUrl, styles: this.get35Styles(text)};
-            } else {
-                return Promise.reject(null);
-            }
+            return promise.then((url) => {
+                this.logger.debug('Loading styles from: ', url);
+
+                // Get the CSS content using HTTP because we will treat the styles before saving them in the file.
+                return this.http.get(url).toPromise();
+            }).then((response): any => {
+                const text = response && response.text();
+                if (typeof text == 'string') {
+                    return {fileUrl: fileUrl, styles: this.get35Styles(text)};
+                } else {
+                    return Promise.reject(null);
+                }
+            });
         });
     }
 
@@ -208,6 +212,11 @@ export class AddonRemoteThemesProvider {
             this.disableElement(this.stylesEls[siteId].element, disabled);
 
             return this.get(siteId).then((data) => {
+                if (typeof data == 'undefined') {
+                    // Nothing to load.
+                    return;
+                }
+
                 const hash = <string> Md5.hashAsciiStr(data.styles);
 
                 // Update the styles only if they have changed.
@@ -271,6 +280,8 @@ export class AddonRemoteThemesProvider {
     preloadCurrentSite(): Promise<any> {
         return this.sitesProvider.getStoredCurrentSiteId().then((siteId) => {
             return this.addSite(siteId);
+        }, () => {
+            // No current site stored.
         });
     }
 

src/core/compile/components/compile-html/compile-html.ts

@@ -14,11 +14,10 @@
 
 import {
     Component, Input, OnInit, OnChanges, OnDestroy, ViewContainerRef, ViewChild, ComponentRef, SimpleChange, ChangeDetectorRef,
-    ElementRef, Optional
+    ElementRef, Optional, Output, EventEmitter
 } from '@angular/core';
 import { NavController } from 'ionic-angular';
 import { CoreCompileProvider } from '../../providers/compile';
-import { BehaviorSubject } from 'rxjs';
 
 /**
  * This component has a behaviour similar to $compile for AngularJS. Given an HTML code, it will compile it so all its
@@ -42,19 +41,18 @@ import { BehaviorSubject } from 'rxjs';
 export class CoreCompileHtmlComponent implements OnChanges, OnDestroy {
     @Input() text: string; // The HTML text to display.
     @Input() javascript: string; // The Javascript to execute in the component.
-    @Input() jsData; // Data to pass to the fake component.
+    @Input() jsData: any; // Data to pass to the fake component.
+    @Output() created: EventEmitter<any> = new EventEmitter(); // Will emit an event when the component is instantiated.
 
     // Get the container where to put the content.
     @ViewChild('dynamicComponent', { read: ViewContainerRef }) container: ViewContainerRef;
 
     protected componentRef: ComponentRef<any>;
     protected element;
-    componentObservable: BehaviorSubject<any>; // An observable to notify observers when the component is instantiated.
 
     constructor(protected compileProvider: CoreCompileProvider, protected cdr: ChangeDetectorRef, element: ElementRef,
             @Optional() protected navCtrl: NavController) {
         this.element = element.nativeElement;
-        this.componentObservable = new BehaviorSubject<any>(null);
     }
 
     /**
@@ -70,7 +68,7 @@ export class CoreCompileHtmlComponent implements OnChanges, OnDestroy {
                 if (factory) {
                     // Create the component.
                     this.componentRef = this.container.createComponent(factory);
-                    this.componentObservable.next(this.componentRef.instance);
+                    this.created.emit(this.componentRef.instance);
                 }
             });
         }
@@ -98,13 +96,13 @@ export class CoreCompileHtmlComponent implements OnChanges, OnDestroy {
                 // If there is some javascript to run, prepare the instance.
                 if (compileInstance.javascript) {
                     compileInstance.compileProvider.injectLibraries(this);
-
-                    // Add some more components and classes.
-                    this['ChangeDetectorRef'] = compileInstance.cdr;
-                    this['NavController'] = compileInstance.navCtrl;
-                    this['componentContainer'] = compileInstance.element;
                 }
 
+                // Always add these elements, they could be needed on component init (componentObservable).
+                this['ChangeDetectorRef'] = compileInstance.cdr;
+                this['NavController'] = compileInstance.navCtrl;
+                this['componentContainer'] = compileInstance.element;
+
                 // Add the data passed to the component.
                 for (const name in compileInstance.jsData) {
                     this[name] = compileInstance.jsData[name];

src/core/compile/providers/compile.ts

@@ -75,6 +75,12 @@ import { CoreCourseFormatSingleActivityComponent } from '@core/course/formats/si
 import { CoreSitePluginsModuleIndexComponent } from '@core/siteplugins/components/module-index/module-index';
 import { CoreSitePluginsCourseOptionComponent } from '@core/siteplugins/components/course-option/course-option';
 import { CoreSitePluginsCourseFormatComponent } from '@core/siteplugins/components/course-format/course-format';
+import { CoreSitePluginsQuestionComponent } from '@core/siteplugins/components/question/question';
+import { CoreSitePluginsQuestionBehaviourComponent } from '@core/siteplugins/components/question-behaviour/question-behaviour';
+import { CoreSitePluginsUserProfileFieldComponent } from '@core/siteplugins/components/user-profile-field/user-profile-field';
+import { CoreSitePluginsQuizAccessRuleComponent } from '@core/siteplugins/components/quiz-access-rule/quiz-access-rule';
+import { CoreSitePluginsAssignFeedbackComponent } from '@core/siteplugins/components/assign-feedback/assign-feedback';
+import { CoreSitePluginsAssignSubmissionComponent } from '@core/siteplugins/components/assign-submission/assign-submission';
 
 /**
  * Service to provide functionalities regarding compiling dynamic HTML and Javascript.
@@ -203,6 +209,12 @@ export class CoreCompileProvider {
         instance['CoreSitePluginsModuleIndexComponent'] = CoreSitePluginsModuleIndexComponent;
         instance['CoreSitePluginsCourseOptionComponent'] = CoreSitePluginsCourseOptionComponent;
         instance['CoreSitePluginsCourseFormatComponent'] = CoreSitePluginsCourseFormatComponent;
+        instance['CoreSitePluginsQuestionComponent'] = CoreSitePluginsQuestionComponent;
+        instance['CoreSitePluginsQuestionBehaviourComponent'] = CoreSitePluginsQuestionBehaviourComponent;
+        instance['CoreSitePluginsUserProfileFieldComponent'] = CoreSitePluginsUserProfileFieldComponent;
+        instance['CoreSitePluginsQuizAccessRuleComponent'] = CoreSitePluginsQuizAccessRuleComponent;
+        instance['CoreSitePluginsAssignFeedbackComponent'] = CoreSitePluginsAssignFeedbackComponent;
+        instance['CoreSitePluginsAssignSubmissionComponent'] = CoreSitePluginsAssignSubmissionComponent;
     }
 
     /**

src/core/question/classes/base-question-component.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Input, EventEmitter, Injector } from '@angular/core';
+import { Input, Output, EventEmitter, Injector } from '@angular/core';
 import { CoreLoggerProvider } from '@providers/logger';
 import { CoreDomUtilsProvider } from '@providers/utils/dom';
 import { CoreTextUtilsProvider } from '@providers/utils/text';
@@ -27,8 +27,8 @@ export class CoreQuestionBaseComponent {
     @Input() componentId: number; // ID of the component the question belongs to.
     @Input() attemptId: number; // Attempt ID.
     @Input() offlineEnabled?: boolean | string; // Whether the question can be answered in offline.
-    @Input() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
-    @Input() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
+    @Output() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
+    @Output() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
 
     protected logger;
     protected questionHelper: CoreQuestionHelperProvider;

src/core/question/components/question/question.ts

@@ -123,11 +123,15 @@ export class CoreQuestionComponent implements OnInit {
 
                 promise.then(() => {
                     // Handle behaviour.
-                    this.behaviourDelegate.handleQuestion(this.question.preferredBehaviour, this.question).then((comps) => {
+                    this.behaviourDelegate.handleQuestion(this.injector, this.question.preferredBehaviour, this.question)
+                            .then((comps) => {
                         this.behaviourComponents = comps;
+                    }).finally(() => {
+                        this.question.html = this.domUtils.removeElementFromHtml(this.question.html, '.im-controls');
+                        this.loaded = true;
                     });
+
                     this.questionHelper.extractQbehaviourRedoButton(this.question);
-                    this.question.html = this.domUtils.removeElementFromHtml(this.question.html, '.im-controls');
 
                     // Extract the validation error of the question.
                     this.question.validationError = this.questionHelper.getValidationErrorFromHtml(this.question.html);
@@ -138,8 +142,6 @@ export class CoreQuestionComponent implements OnInit {
                     // Try to extract the feedback and comment for the question.
                     this.questionHelper.extractQuestionFeedback(this.question);
                     this.questionHelper.extractQuestionComment(this.question);
-
-                    this.loaded = true;
                 });
             }
         }).catch(() => {

src/core/question/providers/behaviour-delegate.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreLoggerProvider } from '@providers/logger';
 import { CoreEventsProvider } from '@providers/events';
 import { CoreSitesProvider } from '@providers/sites';
@@ -48,11 +48,12 @@ export interface CoreQuestionBehaviourHandler extends CoreDelegateHandler {
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion?(question: any): any[] | Promise<any[]>;
+    handleQuestion?(injector: Injector, question: any): any[] | Promise<any[]>;
 }
 
 /**
@@ -90,14 +91,15 @@ export class CoreQuestionBehaviourDelegate extends CoreDelegate {
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return a directive to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {string} behaviour Default behaviour.
      * @param {any} question The question.
      * @return {Promise<any[]>} Promise resolved with components to render some extra data in the question.
      */
-    handleQuestion(behaviour: string, question: any): Promise<any[]> {
+    handleQuestion(injector: Injector, behaviour: string, question: any): Promise<any[]> {
         behaviour = this.questionDelegate.getBehaviourForQuestion(question, behaviour);
 
-        return Promise.resolve(this.executeFunctionOnEnabled(behaviour, 'handleQuestion', [question]));
+        return Promise.resolve(this.executeFunctionOnEnabled(behaviour, 'handleQuestion', [injector, question]));
     }
 
     /**

src/core/question/providers/default-behaviour-handler.ts

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Injectable } from '@angular/core';
+import { Injectable, Injector } from '@angular/core';
 import { CoreQuestionBehaviourHandler } from './behaviour-delegate';
 import { CoreQuestionProvider, CoreQuestionState } from '@core/question/providers/question';
 
@@ -46,11 +46,12 @@ export class CoreQuestionBehaviourDefaultHandler implements CoreQuestionBehaviou
      * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
      * If the behaviour requires to show some extra data, it should return the components to render it.
      *
+     * @param {Injector} injector Injector.
      * @param {any} question The question.
      * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
      *                                (e.g. certainty options). Don't return anything if no extra data is required.
      */
-    handleQuestion(question: any): any[] | Promise<any[]> {
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
         // Nothing to do.
         return;
     }

src/core/siteplugins/classes/compile-init-component.ts

@@ -0,0 +1,59 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { CoreSitePluginsProvider } from '../providers/siteplugins';
+
+/**
+ * Base class for components that will display a component using core-compile-html and want to call a
+ * componentInit function returned by the handler JS.
+ */
+export class CoreSitePluginsCompileInitComponent {
+    content = ''; // Content.
+    jsData: any; // Data to pass to the component.
+    protected handlerSchema: any; // The handler data.
+
+    constructor(protected sitePluginsProvider: CoreSitePluginsProvider) { }
+
+    /**
+     * Function called when the component is created.
+     *
+     * @param {any} instance The component instance.
+     */
+    componentCreated(instance: any): void {
+        // Check if the JS defined an init function.
+        if (instance && this.handlerSchema && this.handlerSchema.methodJSResult &&
+                this.handlerSchema.methodJSResult.componentInit) {
+            this.handlerSchema.methodJSResult.componentInit.apply(instance);
+        }
+    }
+
+    /**
+     * Get the handler data.
+     *
+     * @param {string} name The name of the handler.
+     */
+    getHandlerData(name: string): void {
+        // Retrieve the handler data.
+        const handler = this.sitePluginsProvider.getSitePluginHandler(name);
+
+        this.handlerSchema = handler && handler.handlerSchema;
+
+        if (this.handlerSchema) {
+            // Load first template.
+            if (this.handlerSchema.methodTemplates && this.handlerSchema.methodTemplates.length) {
+                this.content = handler.handlerSchema.methodTemplates[0].html;
+            }
+        }
+    }
+}

src/core/siteplugins/classes/handlers/assign-feedback-handler.ts

@@ -0,0 +1,63 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Injector } from '@angular/core';
+import { TranslateService } from '@ngx-translate/core';
+import { AddonModAssignDefaultFeedbackHandler } from '@addon/mod/assign/providers/default-feedback-handler';
+import { CoreSitePluginsAssignFeedbackComponent } from '../../components/assign-feedback/assign-feedback';
+
+/**
+ * Handler to display an assign feedback site plugin.
+ */
+export class CoreSitePluginsAssignFeedbackHandler extends AddonModAssignDefaultFeedbackHandler {
+
+    constructor(translate: TranslateService, public name: string, public type: string, protected prefix: string) {
+        super(translate);
+    }
+
+    /**
+     * Return the Component to use to display the plugin data, either in read or in edit mode.
+     * It's recommended to return the class of the component, but you can also return an instance of the component.
+     *
+     * @param {Injector} injector Injector.
+     * @param {any} plugin The plugin object.
+     * @param {boolean} [edit] Whether the user is editing.
+     * @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
+     */
+    getComponent(injector: Injector, plugin: any, edit?: boolean): any | Promise<any> {
+        return CoreSitePluginsAssignFeedbackComponent;
+    }
+
+    /**
+     * Get a readable name to use for the plugin.
+     *
+     * @param {any} plugin The plugin object.
+     * @return {string} The plugin name.
+     */
+    getPluginName(plugin: any): string {
+        // Check if there's a translated string for the plugin.
+        const translationId = this.prefix + 'pluginname',
+            translation = this.translate.instant(translationId);
+
+        if (translationId != translation) {
+            // Translation found, use it.
+            return translation;
+        }
+
+        // Fallback to WS string.
+        if (plugin.name) {
+            return plugin.name;
+        }
+    }
+}

src/core/siteplugins/classes/handlers/assign-submission-handler.ts

@@ -0,0 +1,72 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Injector } from '@angular/core';
+import { TranslateService } from '@ngx-translate/core';
+import { AddonModAssignDefaultSubmissionHandler } from '@addon/mod/assign/providers/default-submission-handler';
+import { CoreSitePluginsAssignSubmissionComponent } from '../../components/assign-submission/assign-submission';
+
+/**
+ * Handler to display an assign submission site plugin.
+ */
+export class CoreSitePluginsAssignSubmissionHandler extends AddonModAssignDefaultSubmissionHandler {
+
+    constructor(translate: TranslateService, public name: string, public type: string, protected prefix: string) {
+        super(translate);
+    }
+
+    /**
+     * Return the Component to use to display the plugin data, either in read or in edit mode.
+     * It's recommended to return the class of the component, but you can also return an instance of the component.
+     *
+     * @param {Injector} injector Injector.
+     * @param {any} plugin The plugin object.
+     * @param {boolean} [edit] Whether the user is editing.
+     * @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
+     */
+    getComponent(injector: Injector, plugin: any, edit?: boolean): any | Promise<any> {
+        return CoreSitePluginsAssignSubmissionComponent;
+    }
+
+    /**
+     * Get a readable name to use for the plugin.
+     *
+     * @param {any} plugin The plugin object.
+     * @return {string} The plugin name.
+     */
+    getPluginName(plugin: any): string {
+        // Check if there's a translated string for the plugin.
+        const translationId = this.prefix + 'pluginname',
+            translation = this.translate.instant(translationId);
+
+        if (translationId != translation) {
+            // Translation found, use it.
+            return translation;
+        }
+
+        // Fallback to WS string.
+        if (plugin.name) {
+            return plugin.name;
+        }
+    }
+
+    /**
+     * Whether or not the handler is enabled for edit on a site level.
+     *
+     * @return {boolean|Promise<boolean>} Whether or not the handler is enabled for edit on a site level.
+     */
+    isEnabledForEdit(): boolean | Promise<boolean> {
+        return true;
+    }
+}

src/core/siteplugins/classes/handlers/course-format-handler.ts

@@ -15,7 +15,7 @@
 import { Injector } from '@angular/core';
 import { CoreCourseFormatHandler } from '@core/course/providers/format-delegate';
 import { CoreSitePluginsBaseHandler } from './base-handler';
-import { CoreSitePluginsCourseFormatComponent } from '../components/course-format/course-format';
+import { CoreSitePluginsCourseFormatComponent } from '../../components/course-format/course-format';
 
 /**
  * Handler to support a course format using a site plugin.

src/core/siteplugins/classes/handlers/course-option-handler.ts

@@ -13,10 +13,10 @@
 // limitations under the License.
 
 import { Injector } from '@angular/core';
-import { CoreSitePluginsProvider } from '../providers/siteplugins';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
 import { CoreCourseOptionsHandler, CoreCourseOptionsHandlerData } from '@core/course/providers/options-delegate';
 import { CoreSitePluginsBaseHandler } from './base-handler';
-import { CoreSitePluginsCourseOptionComponent } from '../components/course-option/course-option';
+import { CoreSitePluginsCourseOptionComponent } from '../../components/course-option/course-option';
 
 /**
  * Handler to display a site plugin in course options.

src/core/siteplugins/classes/handlers/main-menu-handler.ts

@@ -25,7 +25,8 @@ export class CoreSitePluginsMainMenuHandler extends CoreSitePluginsBaseHandler i
             protected initResult: any) {
         super(name);
 
-        this.priority = handlerSchema.priority;
+        // Set 699 as max priority so site plugins are always shown in the More tab (700 is Notifications tab).
+        this.priority = Math.min(handlerSchema.priority, 699);
     }
 
     /**

src/core/siteplugins/classes/handlers/message-output-handler.ts

@@ -0,0 +1,47 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { AddonMessageOutputHandler, AddonMessageOutputHandlerData } from '@addon/messageoutput/providers/delegate';
+import { CoreSitePluginsBaseHandler } from './base-handler';
+
+/**
+ * Handler to display a message output settings option.
+ */
+export class CoreSitePluginsMessageOutputHandler extends CoreSitePluginsBaseHandler implements AddonMessageOutputHandler {
+
+    constructor(name: string, public processorName: string, protected title: string, protected plugin: any,
+            protected handlerSchema: any, protected initResult: any) {
+        super(name);
+    }
+
+    /**
+     * Returns the data needed to render the handler.
+     *
+     * @return {AddonMessageOutputHandlerData} Data.
+     */
+    getDisplayData(): AddonMessageOutputHandlerData {
+        return {
+            priority: this.handlerSchema.priority,
+            label: this.title,
+            icon: this.handlerSchema.displaydata.icon,
+            page: 'CoreSitePluginsPluginPage',
+            pageParams: {
+                title: this.title,
+                component: this.plugin.component,
+                method: this.handlerSchema.method,
+                initResult: this.initResult
+            }
+        };
+    }
+}

src/core/siteplugins/classes/handlers/module-handler.ts

@@ -16,7 +16,7 @@ import { Injector } from '@angular/core';
 import { NavController, NavOptions } from 'ionic-angular';
 import { CoreCourseModuleHandler, CoreCourseModuleHandlerData } from '@core/course/providers/module-delegate';
 import { CoreSitePluginsBaseHandler } from './base-handler';
-import { CoreSitePluginsModuleIndexComponent } from '../components/module-index/module-index';
+import { CoreSitePluginsModuleIndexComponent } from '../../components/module-index/module-index';
 
 /**
  * Handler to support a module using a site plugin.

src/core/siteplugins/classes/handlers/module-prefetch-handler.ts

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 import { Injector } from '@angular/core';
-import { CoreSitePluginsProvider } from '../providers/siteplugins';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
 import { CoreCourseModulePrefetchHandlerBase } from '@core/course/classes/module-prefetch-handler';
 
 /**

src/core/siteplugins/classes/handlers/question-behaviour-handler.ts

@@ -0,0 +1,44 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Injector } from '@angular/core';
+import { CoreQuestionBehaviourDefaultHandler } from '@core/question/providers/default-behaviour-handler';
+import { CoreSitePluginsQuestionBehaviourComponent } from '../../components/question-behaviour/question-behaviour';
+import { CoreQuestionProvider } from '@core/question/providers/question';
+
+/**
+ * Handler to display a question behaviour site plugin.
+ */
+export class CoreSitePluginsQuestionBehaviourHandler extends CoreQuestionBehaviourDefaultHandler {
+
+    constructor(questionProvider: CoreQuestionProvider, public name: string, public type: string, public hasTemplate: boolean) {
+        super(questionProvider);
+    }
+
+    /**
+     * Handle a question behaviour.
+     * If the behaviour requires a submit button, it should add it to question.behaviourButtons.
+     * If the behaviour requires to show some extra data, it should return the components to render it.
+     *
+     * @param {Injector} injector Injector.
+     * @param {any} question The question.
+     * @return {any[]|Promise<any[]>} Components (or promise resolved with components) to render some extra data in the question
+     *                                (e.g. certainty options). Don't return anything if no extra data is required.
+     */
+    handleQuestion(injector: Injector, question: any): any[] | Promise<any[]> {
+        if (this.hasTemplate) {
+            return [CoreSitePluginsQuestionBehaviourComponent];
+        }
+    }
+}

src/core/siteplugins/classes/handlers/question-handler.ts

@@ -0,0 +1,39 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Injector } from '@angular/core';
+import { CoreQuestionDefaultHandler } from '@core/question/providers/default-question-handler';
+import { CoreSitePluginsQuestionComponent } from '../../components/question/question';
+
+/**
+ * Handler to display a question site plugin.
+ */
+export class CoreSitePluginsQuestionHandler extends CoreQuestionDefaultHandler {
+
+    constructor(public name: string, public type: string) {
+        super();
+    }
+
+    /**
+     * Return the Component to use to display the question.
+     * It's recommended to return the class of the component, but you can also return an instance of the component.
+     *
+     * @param {Injector} injector Injector.
+     * @param {any} question The question to render.
+     * @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
+     */
+    getComponent(injector: Injector): any | Promise<any> {
+        return CoreSitePluginsQuestionComponent;
+    }
+}

src/core/siteplugins/classes/handlers/quiz-access-rule-handler.ts

@@ -0,0 +1,110 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Injector } from '@angular/core';
+import { CoreQuestionDefaultHandler } from '@core/question/providers/default-question-handler';
+import { CoreSitePluginsQuizAccessRuleComponent } from '../../components/quiz-access-rule/quiz-access-rule';
+
+/**
+ * Handler to display a quiz access rule site plugin.
+ */
+export class CoreSitePluginsQuizAccessRuleHandler extends CoreQuestionDefaultHandler {
+
+    constructor(public name: string, public ruleName: string, public hasTemplate: boolean) {
+        super();
+    }
+
+    /**
+     * Whether the rule requires a preflight check when prefetch/start/continue an attempt.
+     *
+     * @param {any} quiz The quiz the rule belongs to.
+     * @param {any} [attempt] The attempt started/continued. If not supplied, user is starting a new attempt.
+     * @param {boolean} [prefetch] Whether the user is prefetching the quiz.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {boolean|Promise<boolean>} Whether the rule requires a preflight check.
+     */
+    isPreflightCheckRequired(quiz: any, attempt?: any, prefetch?: boolean, siteId?: string): boolean | Promise<boolean> {
+        return this.hasTemplate;
+    }
+
+    /**
+     * Add preflight data that doesn't require user interaction. The data should be added to the preflightData param.
+     *
+     * @param {any} quiz The quiz the rule belongs to.
+     * @param {any} preflightData Object where to add the preflight data.
+     * @param {any} [attempt] The attempt started/continued. If not supplied, user is starting a new attempt.
+     * @param {boolean} [prefetch] Whether the user is prefetching the quiz.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} Promise resolved when done if async, void if it's synchronous.
+     */
+    getFixedPreflightData(quiz: any, preflightData: any, attempt?: any, prefetch?: boolean, siteId?: string): void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Return the Component to use to display the access rule preflight.
+     * Implement this if your access rule requires a preflight check with user interaction.
+     * It's recommended to return the class of the component, but you can also return an instance of the component.
+     *
+     * @param {Injector} injector Injector.
+     * @return {any|Promise<any>} The component (or promise resolved with component) to use, undefined if not found.
+     */
+    getPreflightComponent(injector: Injector): any | Promise<any> {
+        if (this.hasTemplate) {
+            return CoreSitePluginsQuizAccessRuleComponent;
+        }
+    }
+
+    /**
+     * Function called when the preflight check has passed. This is a chance to record that fact in some way.
+     *
+     * @param {any} quiz The quiz the rule belongs to.
+     * @param {any} attempt The attempt started/continued.
+     * @param {any} preflightData Preflight data gathered.
+     * @param {boolean} [prefetch] Whether the user is prefetching the quiz.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} Promise resolved when done if async, void if it's synchronous.
+     */
+    notifyPreflightCheckPassed(quiz: any, attempt: any, preflightData: any, prefetch?: boolean, siteId?: string)
+            : void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Function called when the preflight check fails. This is a chance to record that fact in some way.
+     *
+     * @param {any} quiz The quiz the rule belongs to.
+     * @param {any} attempt The attempt started/continued.
+     * @param {any} preflightData Preflight data gathered.
+     * @param {boolean} [prefetch] Whether the user is prefetching the quiz.
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {void|Promise<any>} Promise resolved when done if async, void if it's synchronous.
+     */
+    notifyPreflightCheckFailed(quiz: any, attempt: any, preflightData: any, prefetch?: boolean, siteId?: string)
+            : void | Promise<any> {
+        // Nothing to do.
+    }
+
+    /**
+     * Whether or not the time left of an attempt should be displayed.
+     *
+     * @param {any} attempt The attempt.
+     * @param {number} endTime The attempt end time (in seconds).
+     * @param {number} timeNow The current time in seconds.
+     * @return {boolean} Whether it should be displayed.
+     */
+    shouldShowTimeLeft(attempt: any, endTime: number, timeNow: number): boolean {
+        return false;
+    }
+}

src/core/siteplugins/classes/handlers/settings-handler.ts

@@ -0,0 +1,50 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { CoreSettingsHandler, CoreSettingsHandlerData } from '@core/settings/providers/delegate';
+import { CoreSitePluginsBaseHandler } from './base-handler';
+
+/**
+ * Handler to display a site plugin in the settings.
+ */
+export class CoreSitePluginsSettingsHandler extends CoreSitePluginsBaseHandler implements CoreSettingsHandler {
+    priority: number;
+
+    constructor(name: string, protected title: string, protected plugin: any, protected handlerSchema: any,
+            protected initResult: any) {
+        super(name);
+
+        this.priority = handlerSchema.priority;
+    }
+
+    /**
+     * Returns the data needed to render the handler.
+     *
+     * @return {CoreSettingsHandlerData} Data.
+     */
+    getDisplayData(): CoreSettingsHandlerData {
+        return {
+            title: this.title,
+            icon: this.handlerSchema.displaydata.icon,
+            class: this.handlerSchema.displaydata.class,
+            page: 'CoreSitePluginsPluginPage',
+            params: {
+                title: this.title,
+                component: this.plugin.component,
+                method: this.handlerSchema.method,
+                initResult: this.initResult
+            }
+        };
+    }
+}

src/core/siteplugins/classes/handlers/user-handler.ts

@@ -14,7 +14,7 @@
 
 import { NavController } from 'ionic-angular';
 import { CoreUserDelegate, CoreUserProfileHandler, CoreUserProfileHandlerData } from '@core/user/providers/user-delegate';
-import { CoreSitePluginsProvider } from '../providers/siteplugins';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
 import { CoreSitePluginsBaseHandler } from './base-handler';
 
 /**

src/core/siteplugins/classes/handlers/user-profile-field-handler.ts

@@ -15,7 +15,7 @@
 import { Injector } from '@angular/core';
 import { CoreUserProfileFieldHandler, CoreUserProfileFieldHandlerData } from '@core/user/providers/user-profile-field-delegate';
 import { CoreSitePluginsBaseHandler } from './base-handler';
-import { CoreSitePluginsUserProfileFieldComponent } from '../components/user-profile-field/user-profile-field';
+import { CoreSitePluginsUserProfileFieldComponent } from '../../components/user-profile-field/user-profile-field';
 
 /**
  * Handler to display a site plugin in the user profile.

src/core/siteplugins/components/assign-feedback/assign-feedback.html

@@ -0,0 +1 @@
+<core-compile-html [text]="content" [jsData]="jsData" (created)="componentCreated($event)"></core-compile-html>

src/core/siteplugins/components/assign-feedback/assign-feedback.ts

@@ -0,0 +1,67 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit, Input } from '@angular/core';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
+import { CoreSitePluginsCompileInitComponent } from '../../classes/compile-init-component';
+
+/**
+ * Component that displays an assign feedback plugin created using a site plugin.
+ */
+@Component({
+    selector: 'core-site-plugins-assign-feedback',
+    templateUrl: 'assign-feedback.html',
+})
+export class CoreSitePluginsAssignFeedbackComponent extends CoreSitePluginsCompileInitComponent implements OnInit {
+    @Input() assign: any; // The assignment.
+    @Input() submission: any; // The submission.
+    @Input() plugin: any; // The plugin object.
+    @Input() userId: number; // The user ID of the submission.
+    @Input() configs: any; // The configs for the plugin.
+    @Input() canEdit: boolean; // Whether the user can edit.
+    @Input() edit: boolean; // Whether the user is editing.
+
+    constructor(sitePluginsProvider: CoreSitePluginsProvider) {
+        super(sitePluginsProvider);
+    }
+
+    /**
+     * Component being initialized.
+     */
+    ngOnInit(): void {
+        // Pass the input and output data to the component.
+        this.jsData = {
+            assign: this.assign,
+            submission: this.submission,
+            plugin: this.plugin,
+            userId: this.userId,
+            configs: this.configs,
+            edit: this.edit,
+            canEdit: this.canEdit
+        };
+
+        if (this.plugin) {
+            this.getHandlerData('assignfeedback_' + this.plugin.type);
+        }
+    }
+
+    /**
+     * Invalidate the data.
+     *
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    invalidate(): Promise<any> {
+        return Promise.resolve();
+    }
+}

src/core/siteplugins/components/assign-submission/assign-submission.html

@@ -0,0 +1 @@
+<core-compile-html [text]="content" [jsData]="jsData" (created)="componentCreated($event)"></core-compile-html>

src/core/siteplugins/components/assign-submission/assign-submission.ts

@@ -0,0 +1,65 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit, Input } from '@angular/core';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
+import { CoreSitePluginsCompileInitComponent } from '../../classes/compile-init-component';
+
+/**
+ * Component that displays an assign submission plugin created using a site plugin.
+ */
+@Component({
+    selector: 'core-site-plugins-assign-submission',
+    templateUrl: 'assign-submission.html',
+})
+export class CoreSitePluginsAssignSubmissionComponent extends CoreSitePluginsCompileInitComponent implements OnInit {
+    @Input() assign: any; // The assignment.
+    @Input() submission: any; // The submission.
+    @Input() plugin: any; // The plugin object.
+    @Input() configs: any; // The configs for the plugin.
+    @Input() edit: boolean; // Whether the user is editing.
+    @Input() allowOffline: boolean; // Whether to allow offline.
+
+    constructor(sitePluginsProvider: CoreSitePluginsProvider) {
+        super(sitePluginsProvider);
+    }
+
+    /**
+     * Component being initialized.
+     */
+    ngOnInit(): void {
+        // Pass the input and output data to the component.
+        this.jsData = {
+            assign: this.assign,
+            submission: this.submission,
+            plugin: this.plugin,
+            configs: this.configs,
+            edit: this.edit,
+            allowOffline: this.allowOffline
+        };
+
+        if (this.plugin) {
+            this.getHandlerData('assignsubmission_' + this.plugin.type);
+        }
+    }
+
+    /**
+     * Invalidate the data.
+     *
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    invalidate(): Promise<any> {
+        return Promise.resolve();
+    }
+}

src/core/siteplugins/components/components.module.ts

@@ -23,6 +23,11 @@ import { CoreSitePluginsModuleIndexComponent } from './module-index/module-index
 import { CoreSitePluginsCourseOptionComponent } from './course-option/course-option';
 import { CoreSitePluginsCourseFormatComponent } from './course-format/course-format';
 import { CoreSitePluginsUserProfileFieldComponent } from './user-profile-field/user-profile-field';
+import { CoreSitePluginsQuestionComponent } from './question/question';
+import { CoreSitePluginsQuestionBehaviourComponent } from './question-behaviour/question-behaviour';
+import { CoreSitePluginsQuizAccessRuleComponent } from './quiz-access-rule/quiz-access-rule';
+import { CoreSitePluginsAssignFeedbackComponent } from './assign-feedback/assign-feedback';
+import { CoreSitePluginsAssignSubmissionComponent } from './assign-submission/assign-submission';
 
 @NgModule({
     declarations: [
@@ -30,7 +35,12 @@ import { CoreSitePluginsUserProfileFieldComponent } from './user-profile-field/u
         CoreSitePluginsModuleIndexComponent,
         CoreSitePluginsCourseOptionComponent,
         CoreSitePluginsCourseFormatComponent,
-        CoreSitePluginsUserProfileFieldComponent
+        CoreSitePluginsUserProfileFieldComponent,
+        CoreSitePluginsQuestionComponent,
+        CoreSitePluginsQuestionBehaviourComponent,
+        CoreSitePluginsQuizAccessRuleComponent,
+        CoreSitePluginsAssignFeedbackComponent,
+        CoreSitePluginsAssignSubmissionComponent
     ],
     imports: [
         CommonModule,
@@ -46,13 +56,23 @@ import { CoreSitePluginsUserProfileFieldComponent } from './user-profile-field/u
         CoreSitePluginsModuleIndexComponent,
         CoreSitePluginsCourseOptionComponent,
         CoreSitePluginsCourseFormatComponent,
-        CoreSitePluginsUserProfileFieldComponent
+        CoreSitePluginsUserProfileFieldComponent,
+        CoreSitePluginsQuestionComponent,
+        CoreSitePluginsQuestionBehaviourComponent,
+        CoreSitePluginsQuizAccessRuleComponent,
+        CoreSitePluginsAssignFeedbackComponent,
+        CoreSitePluginsAssignSubmissionComponent
     ],
     entryComponents: [
         CoreSitePluginsModuleIndexComponent,
         CoreSitePluginsCourseOptionComponent,
         CoreSitePluginsCourseFormatComponent,
-        CoreSitePluginsUserProfileFieldComponent
+        CoreSitePluginsUserProfileFieldComponent,
+        CoreSitePluginsQuestionComponent,
+        CoreSitePluginsQuestionBehaviourComponent,
+        CoreSitePluginsQuizAccessRuleComponent,
+        CoreSitePluginsAssignFeedbackComponent,
+        CoreSitePluginsAssignSubmissionComponent
     ]
 })
 export class CoreSitePluginsComponentsModule {}

src/core/siteplugins/components/question-behaviour/question-behaviour.html

@@ -0,0 +1 @@
+<core-compile-html [text]="content" [jsData]="jsData" (created)="componentCreated($event)"></core-compile-html>

src/core/siteplugins/components/question-behaviour/question-behaviour.ts

@@ -0,0 +1,58 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit, Input, Output, EventEmitter } from '@angular/core';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
+import { CoreSitePluginsCompileInitComponent } from '../../classes/compile-init-component';
+
+/**
+ * Component that displays a question behaviour created using a site plugin.
+ */
+@Component({
+    selector: 'core-site-plugins-question-behaviour',
+    templateUrl: 'question-behaviour.html',
+})
+export class CoreSitePluginsQuestionBehaviourComponent extends CoreSitePluginsCompileInitComponent implements OnInit {
+    @Input() question: any; // The question where the behaviour will be rendered.
+    @Input() component: string; // The component the question belongs to.
+    @Input() componentId: number; // ID of the component the question belongs to.
+    @Input() attemptId: number; // Attempt ID.
+    @Input() offlineEnabled?: boolean | string; // Whether the question can be answered in offline.
+    @Output() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
+    @Output() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
+
+    constructor(sitePluginsProvider: CoreSitePluginsProvider) {
+        super(sitePluginsProvider);
+    }
+
+    /**
+     * Component being initialized.
+     */
+    ngOnInit(): void {
+        // Pass the input and output data to the component.
+        this.jsData = {
+            question: this.question,
+            component: this.component,
+            componentId: this.componentId,
+            attemptId: this.attemptId,
+            offlineEnabled: this.offlineEnabled,
+            buttonClicked: this.buttonClicked,
+            onAbort: this.onAbort
+        };
+
+        if (this.question) {
+            this.getHandlerData('qbehaviour_' + this.question.preferredBehaviour);
+        }
+    }
+}

src/core/siteplugins/components/question/question.html

@@ -0,0 +1 @@
+<core-compile-html [text]="content" [jsData]="jsData" (created)="componentCreated($event)"></core-compile-html>

src/core/siteplugins/components/question/question.ts

@@ -0,0 +1,58 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit, Input, Output, EventEmitter } from '@angular/core';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
+import { CoreSitePluginsCompileInitComponent } from '../../classes/compile-init-component';
+
+/**
+ * Component that displays a question created using a site plugin.
+ */
+@Component({
+    selector: 'core-site-plugins-question',
+    templateUrl: 'question.html',
+})
+export class CoreSitePluginsQuestionComponent extends CoreSitePluginsCompileInitComponent implements OnInit {
+    @Input() question: any; // The question to render.
+    @Input() component: string; // The component the question belongs to.
+    @Input() componentId: number; // ID of the component the question belongs to.
+    @Input() attemptId: number; // Attempt ID.
+    @Input() offlineEnabled?: boolean | string; // Whether the question can be answered in offline.
+    @Output() buttonClicked: EventEmitter<any>; // Should emit an event when a behaviour button is clicked.
+    @Output() onAbort: EventEmitter<void>; // Should emit an event if the question should be aborted.
+
+    constructor(sitePluginsProvider: CoreSitePluginsProvider) {
+        super(sitePluginsProvider);
+    }
+
+    /**
+     * Component being initialized.
+     */
+    ngOnInit(): void {
+        // Pass the input and output data to the component.
+        this.jsData = {
+            question: this.question,
+            component: this.component,
+            componentId: this.componentId,
+            attemptId: this.attemptId,
+            offlineEnabled: this.offlineEnabled,
+            buttonClicked: this.buttonClicked,
+            onAbort: this.onAbort
+        };
+
+        if (this.question) {
+            this.getHandlerData('qtype_' + this.question.type);
+        }
+    }
+}

src/core/siteplugins/components/quiz-access-rule/quiz-access-rule.html

@@ -0,0 +1 @@
+<core-compile-html [text]="content" [jsData]="jsData" (created)="componentCreated($event)"></core-compile-html>

src/core/siteplugins/components/quiz-access-rule/quiz-access-rule.ts

@@ -0,0 +1,57 @@
+// (C) Copyright 2015 Martin Dougiamas
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit, Input } from '@angular/core';
+import { CoreSitePluginsProvider } from '../../providers/siteplugins';
+import { CoreSitePluginsCompileInitComponent } from '../../classes/compile-init-component';
+import { FormGroup } from '@angular/forms';
+
+/**
+ * Component that displays a quiz access rule created using a site plugin.
+ */
+@Component({
+    selector: 'core-site-plugins-quiz-access-rule',
+    templateUrl: 'quiz-access-rule.html',
+})
+export class CoreSitePluginsQuizAccessRuleComponent extends CoreSitePluginsCompileInitComponent implements OnInit {
+    @Input() rule: string; // The name of the rule.
+    @Input() quiz: any; // The quiz the rule belongs to.
+    @Input() attempt: any; // The attempt being started/continued.
+    @Input() prefetch: boolean; // Whether the user is prefetching the quiz.
+    @Input() siteId: string; // Site ID.
+    @Input() form: FormGroup; // Form where to add the form control.
+
+    constructor(sitePluginsProvider: CoreSitePluginsProvider) {
+        super(sitePluginsProvider);
+    }
+
+    /**
+     * Component being initialized.
+     */
+    ngOnInit(): void {
+        // Pass the input and output data to the component.
+        this.jsData = {
+            rule: this.rule,
+            quiz: this.quiz,
+            attempt: this.attempt,
+            prefetch: this.prefetch,
+            siteId: this.siteId,
+            form: this.form
+        };
+
+        if (this.rule) {
+            this.getHandlerData(this.rule);
+        }
+    }
+}

src/core/siteplugins/components/user-profile-field/user-profile-field.html

@@ -1 +1 @@
-<core-compile-html [text]="content" [jsData]="jsData"></core-compile-html>
+<core-compile-html [text]="content" [jsData]="jsData" (created)="componentCreated($event)"></core-compile-html>

src/core/siteplugins/components/user-profile-field/user-profile-field.ts

@@ -12,10 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component, OnInit, Input, ViewChild, OnDestroy } from '@angular/core';
+import { Component, OnInit, Input } from '@angular/core';
 import { CoreSitePluginsProvider } from '../../providers/siteplugins';
-import { CoreCompileHtmlComponent } from '@core/compile/components/compile-html/compile-html';
-import { Subscription } from 'rxjs';
+import { CoreSitePluginsCompileInitComponent } from '../../classes/compile-init-component';
 
 /**
  * Component that displays a user profile field created using a site plugin.
@@ -24,20 +23,16 @@ import { Subscription } from 'rxjs';
     selector: 'core-site-plugins-user-profile-field',
     templateUrl: 'user-profile-field.html',
 })
-export class CoreSitePluginsUserProfileFieldComponent implements OnInit, OnDestroy {
+export class CoreSitePluginsUserProfileFieldComponent extends CoreSitePluginsCompileInitComponent implements OnInit {
     @Input() field: any; // The profile field to be rendered.
     @Input() signup = false; // True if editing the field in signup. Defaults to false.
     @Input() edit = false; // True if editing the field. Defaults to false.
     @Input() form?: any; // Form where to add the form control. Required if edit=true or signup=true.
     @Input() registerAuth?: string; // Register auth method. E.g. 'email'.
 
-    @ViewChild(CoreCompileHtmlComponent) compileComponent: CoreCompileHtmlComponent;
-
-    content = ''; // Content.
-    jsData;
-    protected componentObserver: Subscription;
-
-    constructor(protected sitePluginsProvider: CoreSitePluginsProvider) { }
+    constructor(sitePluginsProvider: CoreSitePluginsProvider) {
+        super(sitePluginsProvider);
+    }
 
     /**
      * Component being initialized.
@@ -54,34 +49,7 @@ export class CoreSitePluginsUserProfileFieldComponent implements OnInit, OnDestr
         };
 
         if (this.field) {
-            // Retrieve the handler data.
-            const handler = this.sitePluginsProvider.getSitePluginHandler(this.field.type || this.field.datatype),
-                handlerSchema = handler && handler.handlerSchema;
-
-            if (handlerSchema) {
-                // Load first template.
-                if (handlerSchema.methodTemplates && handlerSchema.methodTemplates.length) {
-                    this.content = handler.handlerSchema.methodTemplates[0].html;
-                }
-
-                // Wait for the instance to be created.
-                if (this.compileComponent && this.compileComponent.componentObservable &&
-                        handlerSchema.methodJSResult && handlerSchema.methodJSResult.componentInit) {
-                    this.componentObserver = this.compileComponent.componentObservable.subscribe((instance) => {
-                        if (instance) {
-                            // Instance created, call component init.
-                            handlerSchema.methodJSResult.componentInit.apply(instance);
-                        }
-                    });
-                }
-            }
+            this.getHandlerData('profilefield_' + (this.field.type || this.field.datatype));
         }
     }
-
-    /**
-     * Component destroyed.
-     */
-    ngOnDestroy(): void {
-        this.componentObserver && this.componentObserver.unsubscribe();
-    }
 }

src/core/siteplugins/providers/helper.ts

@@ -14,6 +14,7 @@
 
 import { Injectable, Injector } from '@angular/core';
 import { Http } from '@angular/http';
+import { TranslateService } from '@ngx-translate/core';
 import { CoreEventsProvider } from '@providers/events';
 import { CoreFilepoolProvider } from '@providers/filepool';
 import { CoreLangProvider } from '@providers/lang';
@@ -25,6 +26,7 @@ import { CoreUrlUtilsProvider } from '@providers/utils/url';
 import { CoreUtilsProvider } from '@providers/utils/utils';
 import { CoreSitePluginsProvider } from './siteplugins';
 import { CoreCompileProvider } from '@core/compile/providers/compile';
+import { CoreQuestionProvider } from '@core/question/providers/question';
 
 // Delegates
 import { CoreMainMenuDelegate } from '@core/mainmenu/providers/delegate';
@@ -34,15 +36,29 @@ import { CoreCourseOptionsDelegate } from '@core/course/providers/options-delega
 import { CoreCourseFormatDelegate } from '@core/course/providers/format-delegate';
 import { CoreUserDelegate } from '@core/user/providers/user-delegate';
 import { CoreUserProfileFieldDelegate } from '@core/user/providers/user-profile-field-delegate';
+import { CoreSettingsDelegate } from '@core/settings/providers/delegate';
+import { CoreQuestionDelegate } from '@core/question/providers/delegate';
+import { CoreQuestionBehaviourDelegate } from '@core/question/providers/behaviour-delegate';
+import { AddonMessageOutputDelegate } from '@addon/messageoutput/providers/delegate';
+import { AddonModQuizAccessRuleDelegate } from '@addon/mod/quiz/providers/access-rules-delegate';
+import { AddonModAssignFeedbackDelegate } from '@addon/mod/assign/providers/feedback-delegate';
+import { AddonModAssignSubmissionDelegate } from '@addon/mod/assign/providers/submission-delegate';
 
 // Handler classes.
-import { CoreSitePluginsCourseFormatHandler } from '../classes/course-format-handler';
-import { CoreSitePluginsCourseOptionHandler } from '../classes/course-option-handler';
-import { CoreSitePluginsModuleHandler } from '../classes/module-handler';
-import { CoreSitePluginsModulePrefetchHandler } from '../classes/module-prefetch-handler';
-import { CoreSitePluginsMainMenuHandler } from '../classes/main-menu-handler';
-import { CoreSitePluginsUserProfileHandler } from '../classes/user-handler';
-import { CoreSitePluginsUserProfileFieldHandler } from '../classes/user-profile-field-handler';
+import { CoreSitePluginsCourseFormatHandler } from '../classes/handlers/course-format-handler';
+import { CoreSitePluginsCourseOptionHandler } from '../classes/handlers/course-option-handler';
+import { CoreSitePluginsModuleHandler } from '../classes/handlers/module-handler';
+import { CoreSitePluginsModulePrefetchHandler } from '../classes/handlers/module-prefetch-handler';
+import { CoreSitePluginsMainMenuHandler } from '../classes/handlers/main-menu-handler';
+import { CoreSitePluginsUserProfileHandler } from '../classes/handlers/user-handler';
+import { CoreSitePluginsUserProfileFieldHandler } from '../classes/handlers/user-profile-field-handler';
+import { CoreSitePluginsSettingsHandler } from '../classes/handlers/settings-handler';
+import { CoreSitePluginsQuestionHandler } from '../classes/handlers/question-handler';
+import { CoreSitePluginsQuestionBehaviourHandler } from '../classes/handlers/question-behaviour-handler';
+import { CoreSitePluginsMessageOutputHandler } from '../classes/handlers/message-output-handler';
+import { CoreSitePluginsQuizAccessRuleHandler } from '../classes/handlers/quiz-access-rule-handler';
+import { CoreSitePluginsAssignFeedbackHandler } from '../classes/handlers/assign-feedback-handler';
+import { CoreSitePluginsAssignSubmissionHandler } from '../classes/handlers/assign-submission-handler';
 
 /**
  * Helper service to provide functionalities regarding site plugins. It basically has the features to load and register site
@@ -64,7 +80,13 @@ export class CoreSitePluginsHelperProvider {
             private compileProvider: CoreCompileProvider, private utils: CoreUtilsProvider, private urlUtils: CoreUrlUtilsProvider,
             private courseOptionsDelegate: CoreCourseOptionsDelegate, eventsProvider: CoreEventsProvider,
             private courseFormatDelegate: CoreCourseFormatDelegate, private profileFieldDelegate: CoreUserProfileFieldDelegate,
-            private textUtils: CoreTextUtilsProvider, private filepoolProvider: CoreFilepoolProvider) {
+            private textUtils: CoreTextUtilsProvider, private filepoolProvider: CoreFilepoolProvider,
+            private settingsDelegate: CoreSettingsDelegate, private questionDelegate: CoreQuestionDelegate,
+            private questionBehaviourDelegate: CoreQuestionBehaviourDelegate, private questionProvider: CoreQuestionProvider,
+            private messageOutputDelegate: AddonMessageOutputDelegate, private accessRulesDelegate: AddonModQuizAccessRuleDelegate,
+            private assignSubmissionDelegate: AddonModAssignSubmissionDelegate, private translate: TranslateService,
+            private assignFeedbackDelegate: AddonModAssignFeedbackDelegate) {
+
         this.logger = logger.getInstance('CoreSitePluginsHelperProvider');
 
         // Fetch the plugins on login.
@@ -414,7 +436,7 @@ export class CoreSitePluginsHelperProvider {
                     break;
 
                 case 'CoreCourseModuleDelegate':
-                    promise = Promise.resolve(this.registerModuleHandler(plugin, handlerName, handlerSchema, result));
+                    promise = Promise.resolve(this.registerModuleHandler(plugin, handlerName, handlerSchema));
                     break;
 
                 case 'CoreUserDelegate':
@@ -426,11 +448,39 @@ export class CoreSitePluginsHelperProvider {
                     break;
 
                 case 'CoreCourseFormatDelegate':
-                    promise = Promise.resolve(this.registerCourseFormatHandler(plugin, handlerName, handlerSchema, result));
+                    promise = Promise.resolve(this.registerCourseFormatHandler(plugin, handlerName, handlerSchema));
                     break;
 
                 case 'CoreUserProfileFieldDelegate':
-                    promise = Promise.resolve(this.registerUserProfileFieldHandler(plugin, handlerName, handlerSchema, result));
+                    promise = Promise.resolve(this.registerUserProfileFieldHandler(plugin, handlerName, handlerSchema));
+                    break;
+
+                case 'CoreSettingsDelegate':
+                    promise = Promise.resolve(this.registerSettingsHandler(plugin, handlerName, handlerSchema, result));
+                    break;
+
+                case 'CoreQuestionDelegate':
+                    promise = Promise.resolve(this.registerQuestionHandler(plugin, handlerName, handlerSchema));
+                    break;
+
+                case 'CoreQuestionBehaviourDelegate':
+                    promise = Promise.resolve(this.registerQuestionBehaviourHandler(plugin, handlerName, handlerSchema));
+                    break;
+
+                case 'AddonMessageOutputDelegate':
+                    promise = Promise.resolve(this.registerMessageOutputHandler(plugin, handlerName, handlerSchema, result));
+                    break;
+
+                case 'AddonModQuizAccessRuleDelegate':
+                    promise = Promise.resolve(this.registerQuizAccessRuleHandler(plugin, handlerName, handlerSchema));
+                    break;
+
+                case 'AddonModAssignFeedbackDelegate':
+                    promise = Promise.resolve(this.registerAssignFeedbackHandler(plugin, handlerName, handlerSchema));
+                    break;
+
+                case 'AddonModAssignSubmissionDelegate':
+                    promise = Promise.resolve(this.registerAssignSubmissionHandler(plugin, handlerName, handlerSchema));
                     break;
 
                 default:
@@ -454,17 +504,107 @@ export class CoreSitePluginsHelperProvider {
         });
     }
 
+    /**
+     * Register a handler that relies in a "componentInit" function in a certain delegate.
+     * These type of handlers will return a generic template and its JS in the main method, so it will be called
+     * before registering the handler.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
+     */
+    protected registerComponentInitHandler(plugin: any, handlerName: string, handlerSchema: any, delegate: any,
+            createHandlerFn: (uniqueName: string, result: any) => any): string | Promise<string> {
+
+        if (!handlerSchema.method) {
+            // Required data not provided, stop.
+            this.logger.warn('Ignore site plugin because it doesn\'t provide method', plugin, handlerSchema);
+
+            return;
+        }
+
+        this.logger.debug('Register site plugin', plugin, handlerSchema);
+
+        // Execute the main method and its JS. The template returned will be used in the right component.
+        return this.executeMethodAndJS(plugin, handlerSchema.method).then((result) => {
+
+            // Create and register the handler.
+            const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
+                handler = createHandlerFn(uniqueName, result);
+
+            // Store in handlerSchema some data required by the component.
+            handlerSchema.methodTemplates = result.templates;
+            handlerSchema.methodJSResult = result.jsResult;
+
+            if (result && result.jsResult) {
+                // Override default handler functions with the result of the method JS.
+                for (const property in handler) {
+                    if (property != 'constructor' && typeof handler[property] == 'function' &&
+                            typeof result.jsResult[property] == 'function') {
+                        handler[property] = result.jsResult[property].bind(handler);
+                    }
+                }
+            }
+
+            delegate.registerHandler(handler);
+
+            return plugin.component;
+        }).catch((err) => {
+            this.logger.error('Error executing main method', plugin.component, handlerSchema.method, err);
+        });
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the assign feedback delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
+     */
+    protected registerAssignFeedbackHandler(plugin: any, handlerName: string, handlerSchema: any): string | Promise<string> {
+
+        return this.registerComponentInitHandler(plugin, handlerName, handlerSchema, this.assignFeedbackDelegate,
+                    (uniqueName: string, result: any) => {
+
+            const type = plugin.component.replace('assignfeedback_', ''),
+                prefix = this.getPrefixForStrings(plugin.addon);
+
+            return new CoreSitePluginsAssignFeedbackHandler(this.translate, uniqueName, type, prefix);
+        });
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the assign submission delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
+     */
+    protected registerAssignSubmissionHandler(plugin: any, handlerName: string, handlerSchema: any): string | Promise<string> {
+
+        return this.registerComponentInitHandler(plugin, handlerName, handlerSchema, this.assignSubmissionDelegate,
+                    (uniqueName: string, result: any) => {
+
+            const type = plugin.component.replace('assignsubmission_', ''),
+                prefix = this.getPrefixForStrings(plugin.addon);
+
+            return new CoreSitePluginsAssignSubmissionHandler(this.translate, uniqueName, type, prefix);
+        });
+    }
+
     /**
      * Given a handler in a plugin, register it in the course format delegate.
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerCourseFormatHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
-        this.logger.debug('Register site plugin in course format delegate:', plugin, handlerSchema, initResult);
+    protected registerCourseFormatHandler(plugin: any, handlerName: string, handlerSchema: any): string {
+        this.logger.debug('Register site plugin in course format delegate:', plugin, handlerSchema);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
@@ -475,7 +615,7 @@ export class CoreSitePluginsHelperProvider {
     }
 
     /**
-     * Given a handler in an plugin, register it in the course options delegate.
+     * Given a handler in a plugin, register it in the course options delegate.
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
@@ -504,7 +644,7 @@ export class CoreSitePluginsHelperProvider {
     }
 
     /**
-     * Given a handler in an plugin, register it in the main menu delegate.
+     * Given a handler in a plugin, register it in the main menu delegate.
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
@@ -533,7 +673,7 @@ export class CoreSitePluginsHelperProvider {
     }
 
     /**
-     * Given a handler in an plugin, register it in the module delegate.
+     * Given a handler in a plugin, register it in the message output delegate.
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
@@ -541,7 +681,7 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerModuleHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
+    protected registerMessageOutputHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
         if (!handlerSchema.displaydata) {
             // Required data not provided, stop.
             this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
@@ -549,7 +689,36 @@ export class CoreSitePluginsHelperProvider {
             return;
         }
 
-        this.logger.debug('Register site plugin in module delegate:', plugin, handlerSchema, initResult);
+        this.logger.debug('Register site plugin in message output delegate:', plugin, handlerSchema, initResult);
+
+        // Create and register the handler.
+        const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
+            prefixedTitle = this.getPrefixedString(plugin.addon, handlerSchema.displaydata.title),
+            processorName = plugin.component.replace('message_', '');
+
+        this.messageOutputDelegate.registerHandler(new CoreSitePluginsMessageOutputHandler(uniqueName, processorName,
+                prefixedTitle, plugin, handlerSchema, initResult));
+
+        return uniqueName;
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the module delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string} A string to identify the handler.
+     */
+    protected registerModuleHandler(plugin: any, handlerName: string, handlerSchema: any): string {
+        if (!handlerSchema.displaydata) {
+            // Required data not provided, stop.
+            this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
+
+            return;
+        }
+
+        this.logger.debug('Register site plugin in module delegate:', plugin, handlerSchema);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
@@ -567,7 +736,89 @@ export class CoreSitePluginsHelperProvider {
     }
 
     /**
-     * Given a handler in an plugin, register it in the user profile delegate.
+     * Given a handler in a plugin, register it in the question delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
+     */
+    protected registerQuestionHandler(plugin: any, handlerName: string, handlerSchema: any): string | Promise<string> {
+
+        return this.registerComponentInitHandler(plugin, handlerName, handlerSchema, this.questionDelegate,
+                    (uniqueName: string, result: any) => {
+
+            return new CoreSitePluginsQuestionHandler(uniqueName, plugin.component);
+        });
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the question behaviour delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
+     */
+    protected registerQuestionBehaviourHandler(plugin: any, handlerName: string, handlerSchema: any): string | Promise<string> {
+
+        return this.registerComponentInitHandler(plugin, handlerName, handlerSchema, this.questionBehaviourDelegate,
+                    (uniqueName: string, result: any) => {
+
+            const type = plugin.component.replace('qbehaviour_', '');
+
+            return new CoreSitePluginsQuestionBehaviourHandler(this.questionProvider, uniqueName, type, result.templates.length);
+        });
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the quiz access rule delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
+     */
+    protected registerQuizAccessRuleHandler(plugin: any, handlerName: string, handlerSchema: any): string | Promise<string> {
+
+        return this.registerComponentInitHandler(plugin, handlerName, handlerSchema, this.accessRulesDelegate,
+                    (uniqueName: string, result: any) => {
+
+            return new CoreSitePluginsQuizAccessRuleHandler(uniqueName, plugin.component, result.templates.length);
+        });
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the settings delegate.
+     *
+     * @param {any} plugin Data of the plugin.
+     * @param {string} handlerName Name of the handler in the plugin.
+     * @param {any} handlerSchema Data about the handler.
+     * @param {any} initResult Result of the init WS call.
+     * @return {string} A string to identify the handler.
+     */
+    protected registerSettingsHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
+        if (!handlerSchema.displaydata) {
+            // Required data not provided, stop.
+            this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
+
+            return;
+        }
+
+        this.logger.debug('Register site plugin in settings delegate:', plugin, handlerSchema, initResult);
+
+        // Create and register the handler.
+        const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
+            prefixedTitle = this.getPrefixedString(plugin.addon, handlerSchema.displaydata.title);
+
+        this.settingsDelegate.registerHandler(
+                new CoreSitePluginsSettingsHandler(uniqueName, prefixedTitle, plugin, handlerSchema, initResult));
+
+        return uniqueName;
+    }
+
+    /**
+     * Given a handler in a plugin, register it in the user profile delegate.
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
@@ -596,51 +847,21 @@ export class CoreSitePluginsHelperProvider {
     }
 
     /**
-     * Given a handler in an plugin, register it in the user profile field delegate.
+     * Given a handler in a plugin, register it in the user profile field delegate.
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} initResult Result of the init WS call.
      * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
      */
-    protected registerUserProfileFieldHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any)
-            : string | Promise<string> {
-        if (!handlerSchema.method) {
-            // Required data not provided, stop.
-            this.logger.warn('Ignore site plugin because it doesn\'t provide method', plugin, handlerSchema);
+    protected registerUserProfileFieldHandler(plugin: any, handlerName: string, handlerSchema: any): string | Promise<string> {
 
-            return;
-        }
+        return this.registerComponentInitHandler(plugin, handlerName, handlerSchema, this.profileFieldDelegate,
+                    (uniqueName: string, result: any) => {
 
-        this.logger.debug('Register site plugin in user profile field delegate:', plugin, handlerSchema, initResult);
+            const fieldType = plugin.component.replace('profilefield_', '');
 
-        // Execute the main method and its JS. The template returned will be used in the profile field component.
-        return this.executeMethodAndJS(plugin, handlerSchema.method).then((result) => {
-            // Create and register the handler.
-            const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
-                fieldType = plugin.component.replace('profilefield_', ''),
-                fieldHandler = new CoreSitePluginsUserProfileFieldHandler(uniqueName, fieldType);
-
-            // Store in handlerSchema some data required by the component.
-            handlerSchema.methodTemplates = result.templates;
-            handlerSchema.methodJSResult = result.jsResult;
-
-            if (result && result.jsResult) {
-                // Override default handler functions with the result of the method JS.
-                for (const property in fieldHandler) {
-                    if (property != 'constructor' && typeof fieldHandler[property] == 'function' &&
-                            typeof result.jsResult[property] == 'function') {
-                        fieldHandler[property] = result.jsResult[property].bind(fieldHandler);
-                    }
-                }
-            }
-
-            this.profileFieldDelegate.registerHandler(fieldHandler);
-
-            return fieldType;
-        }).catch((err) => {
-            this.logger.error('Error executing main method', handlerSchema.method, err);
+            return new CoreSitePluginsUserProfileFieldHandler(uniqueName, fieldType);
         });
     }
 }

src/providers/cron.ts

@@ -184,9 +184,9 @@ export class CoreCronDelegate {
                     return this.setHandlerLastExecutionTime(name, Date.now()).then(() => {
                         this.scheduleNextExecution(name);
                     });
-                }, () => {
+                }, (error) => {
                     // Handler call failed. Retry soon.
-                    this.logger.debug(`Execution of handler '${name}' failed.`);
+                    this.logger.error(`Execution of handler '${name}' failed.`, error);
                     this.scheduleNextExecution(name, CoreCronDelegate.MIN_INTERVAL);
 
                     return Promise.reject(null);
@@ -440,7 +440,9 @@ export class CoreCronDelegate {
 
             this.handlers[name].timeout = setTimeout(() => {
                 delete this.handlers[name].timeout;
-                this.checkAndExecuteHandler(name);
+                this.checkAndExecuteHandler(name).catch(() => {
+                    // Ignore errors.
+                });
             }, nextExecution);
         });
     }

src/providers/file.ts

@@ -918,7 +918,9 @@ export class CoreFileProvider {
      * @return {Promise<any>} Promise resolved when done.
      */
     clearTmpFolder(): Promise<any> {
-        return this.removeDir(CoreFileProvider.TMPFOLDER);
+        return this.removeDir(CoreFileProvider.TMPFOLDER).catch(() => {
+            // Ignore errors because the folder might not exist.
+        });
     }
 
     /**

src/providers/sites.ts

@@ -975,6 +975,8 @@ export class CoreSitesProvider {
             this.logger.debug(`Restore session in site ${siteId}`);
 
             return this.loadSite(siteId);
+        }).catch(() => {
+            // No current session.
         });
     }