'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI Cloud (C) Copyright IBM Corp. 2014, 2017
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['underscore', '../../../lib/@waca/dashboard-common/dist/ui/WidgetBase'], function (_, WidgetBase) {
	/**
  * The static widget object is a generic class for "static" widget types (e.g. image, text, shapes) that don't require
  * interactivity during consumption mode, but do require some (e.g. to set properties) in authoring mode.
  */
	var StaticWidget = WidgetBase.extend({

		focusOn: false,

		init: function init() {
			StaticWidget.inherited('init', this, arguments);
		},

		onContainerReady: function onContainerReady() {
			StaticWidget.inherited('onContainerReady', this, arguments);
		},

		/**
   * Notify Properties pane on chrome getting selected as well
   */
		onChromeSelected: function onChromeSelected() {
			StaticWidget.inherited('onChromeSelected', this, arguments);
			this.onFocus();
		},

		/**
   * Handler for Widget chrome deselect event
   */
		onChromeDeselected: function onChromeDeselected() {
			StaticWidget.inherited('onChromeDeselected', this, arguments);
			this.focusOn = false;
		},

		/**
   * Handler for Focus event
   * Gets spec for the widget properties and notifies Property pane so that it can
   * show properties to change
   */
		onFocus: function onFocus() {
			if (!this.focusOn) {
				this.focusOn = true;
			}
		},

		/**
   * Virtual Method: Based on properties, generate the HTML for the static content
   */
		getHtmlRender: function getHtmlRender() {
			return null;
		},

		/**
   * Get the node where we can apply style changes like border and fill colors
   * @returns
   */
		getWidgetStyleNode: function getWidgetStyleNode() {
			return this.$el.children('.staticContent');
		},

		/**
   * Update the model when a property is changed for this widget, in the properties side panel.
   */
		onPropertyUpdate: function onPropertyUpdate() {
			var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

			StaticWidget.inherited('onPropertyUpdate', this, arguments);

			// update model content
			this.updateModelContent(null, options.transactionId, options.sender);
		},

		/**
   * Updates the model version of the markup of this widget
   * @param updatedHtml An optional parameter of the markup.
   *		This is to avoid regenerating the markup if it is already known.
   */
		updateModelContent: function updateModelContent(updatedHtml, transactionId) {

			// regenerate the HTML if not passed
			if (!updatedHtml) {
				updatedHtml = this.getHtmlRender();
			}
			// update the model to persist the changes. Use transactionId to combine undos
			var data = {};
			if (transactionId) {
				_.extend(data, {
					payloadData: {
						undoRedoTransactionId: transactionId
					}
				});
			} else {
				_.extend(data, {
					silent: true
				});
			}
			this.set({
				content: updatedHtml
			}, data);
		}
	});

	return StaticWidget;
});
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