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import * as JQuery from 'jquery';
import * as Backbone from 'backbone';
import View from 'pimui/js/view/base-interface';
const mediator = require('oro/mediator');
/**
* View base class
*
* @author Julien Sanchez <julien@akeneo.com>
* @author Filips Alpe <filips@akeneo.com>
* @copyright 2015 Akeneo SAS (http://www.akeneo.com)
* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/
class BaseView extends Backbone.View<any> implements View {
private parent: View | null = null;
private extensions: {[code: string]: View};
readonly preUpdateEventName: string = 'pim_enrich:form:entity:pre_update';
readonly postUpdateEventName: string = 'pim_enrich:form:entity:post_update';
public code: string = 'form';
public configured: boolean;
public zones: {[code: string]: any};
public targetZone: string;
public position: number;
/**
* {@inheritdoc}
*/
constructor(config: any) {
super(config);
this.extensions = {};
this.zones = {};
this.targetZone = '';
this.configured = false;
}
/**
* Configure the extension and its child extensions
*
* @return {JQueryPromise<any>}
*/
configure(): JQueryPromise<any> {
if (null === this.parent) {
this.model = new Backbone.Model();
}
const extensionPromises = Object.values(this.extensions).map((extension: View) => {
return extension.configure();
});
return JQuery.when(...extensionPromises).then(() => {
this.configured = true;
});
}
/**
* Add a child extension to this extension
*
* @param {string} code Extension's code
* @param {View} extension Backbone module of the extension
* @param {string} zone Targeted zone
* @param {number} position The position of the extension
*/
addExtension(code: string, extension: View, zone: string, position: number) {
extension.setParent(this);
extension.code = code;
extension.targetZone = zone;
extension.position = position;
Iif (undefined === this.extensions || null === this.extensions) {
throw 'this.extensions have to be defined. Please ensure you called parent initialize() method.';
}
this.extensions[code] = extension;
}
/**
* Get a child extension (the first extension matching the given code or ends with the given code)
*
* @param {string} code
* @return {View}
*/
getExtension(code: string): View {
const extensionKey = _.findKey(this.extensions, (extension: View) => {
const expectedPosition = extension.code.length - code.length;
return expectedPosition >= 0 && expectedPosition === extension.code.indexOf(code, expectedPosition);
});
return this.extensions[extensionKey];
}
/**
* Set the parent of this extension
*
* @param {View} parent
*/
setParent(parent: View) {
this.parent = parent;
}
/**
* Get the parent of the extension
*
* @return {View | null}
*/
getParent(): View | null {
return this.parent;
}
/**
* Get the root extension
*
* @return {View}
*/
getRoot(): View {
let rootView = <View>this;
let parent = this.getParent();
while (null !== parent) {
rootView = parent;
parent = parent.getParent();
}
return rootView;
}
/**
* Set data in the root model
*
* @param {any} data
* @param {{silent?: boolean}} options If silent is set to true, don't fire events
* pim_enrich:form:entity:pre_update and pim_enrich:form:entity:post_update
*/
setData(data: any, options: {silent?: boolean} = {}) {
if (!options.silent) {
this.getRoot().trigger(this.preUpdateEventName, data);
}
this.getRoot().model.set(data, options);
if (!options.silent) {
this.getRoot().trigger(this.postUpdateEventName, data);
}
}
/**
* Get the form raw data (vanilla javascript object)
*
* @return {any}
*/
getFormData(): any {
return this.getRoot().model.toJSON();
}
/**
* Get the form data (backbone model)
*
* @return {Backbone.Model}
*/
getFormModel(): Backbone.Model {
return this.getRoot().model;
}
/**
* Called before removing the form from the view
*/
shutdown() {
this.doShutdown();
Object.values(this.extensions).forEach((extension: View) => extension.shutdown());
}
/**
* The actual shutdown method called on all extensions
*/
doShutdown() {
this.stopListening();
this.undelegateEvents();
this.$el.removeData().off();
this.remove();
Backbone.View.prototype.remove.call(this);
}
/**
* {@inheritdoc}
*/
render(): View {
if (!this.configured) {
return this;
}
return this.renderExtensions();
}
/**
* Render the child extensions
*
* @return {View}
*/
renderExtensions(): View {
// If the view is no longer attached to the DOM, don't render the extensions
Iif (undefined === this.el) {
return this;
}
this.initializeDropZones();
Object.values(this.extensions).forEach((extension: View) => {
this.renderExtension(extension);
});
return this;
}
/**
* Render a single extension
*
* @param {View} extension
*/
renderExtension(extension: View) {
var zone = this.getZone(extension.targetZone);
Iif (null === zone) {
throw new Error(
`Can not render extension "${extension.code}" in "${this.code}": zone "${extension.targetZone}" does not exist`
);
}
zone.appendChild(extension.el);
extension.render();
}
/**
* Initialize dropzone cache
*/
initializeDropZones() {
this.zones = this.$('[data-drop-zone]')
.toArray()
.reduce((zones: {[code: string]: HTMLElement}, zone: HTMLElement) => {
return {...zones, [<string>zone.dataset.dropZone]: zone};
}, {});
this.zones['self'] = this.el;
}
/**
* Get the drop zone for the given code
*
* @param {string} code
*
* @return {HTMLElement | null}
*/
getZone(code: string): HTMLElement | null {
Iif (!(code in this.zones)) {
this.zones[code] = this.el.querySelector(`[data-drop-zone="${code}"]`);
}
Iif (!this.zones[code]) {
return null;
}
return this.zones[code];
}
/**
* Trigger event on each child extensions and their childs
*/
triggerExtensions() {
const options = Object.values(arguments);
Object.values(this.extensions).forEach(extension => {
extension.trigger.apply(extension, options);
extension.triggerExtensions.apply(extension, options);
});
}
/**
* Listen on child extensions and their childs events
*
* @param {string} code
* @param {Function} callback
*/
onExtensions(code: string, callback: any) {
Object.values(this.extensions).forEach((extension: View) => {
this.listenTo(extension, code, callback);
});
}
/**
* Get the root form code
*
* @return {string}
*/
getFormCode(): string {
return this.getRoot().code;
}
/**
* Listen to given mediator events to trigger them locally (in the local root).
* This way, extensions attached to this form don't have to listen "globally" on the mediator.
*
* @param {{[mediatorEvent: string]: string}} mediator events to forward:
* {'mediator:event:name': 'this:event:name', ...}
*/
forwardMediatorEvents(events: {[mediatorEvent: string]: string}) {
Object.keys(events).forEach((localEvent: string) => {
const mediatorEvent = events[localEvent];
this.listenTo(mediator, mediatorEvent, (...args: any[]) => {
this.trigger(localEvent, ...args);
});
});
}
}
export = BaseView;
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