mirror of
https://github.com/EGroupware/egroupware.git
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442 lines
9.9 KiB
TypeScript
442 lines
9.9 KiB
TypeScript
/**
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* EGroupware eTemplate2 - JS Dropdown Button object
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Nathan Gray
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* @copyright Nathan Gray 2013
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* @version $Id$
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*/
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/*egw:uses
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/vendor/bower-asset/jquery/dist/jquery.js;
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/vendor/bower-asset/jquery-ui/jquery-ui.js;
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et2_baseWidget;
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*/
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import {et2_inputWidget} from './et2_core_inputWidget';
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import {WidgetConfig, et2_register_widget} from "./et2_core_widget";
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import {ClassWithAttributes} from "./et2_core_inheritance";
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/**
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* A split button - a button with a dropdown list
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*
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* There are several parts to the button UI:
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* - Container: This is what is percieved as the dropdown button, the whole package together
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* - Button: The part on the left that can be clicked
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* - Arrow: The button to display the choices
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* - Menu: The list of choices
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*
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* Menu options are passed via the select_options. They are normally ID => Title pairs,
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* as for a select box, but the title can also be full HTML if needed.
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*
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* @augments et2_inputWidget
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*/
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export class et2_dropdown_button extends et2_inputWidget
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{
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static readonly attributes : any = {
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"label": {
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"name": "caption",
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"type": "string",
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"description": "Label of the button",
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"translate": true,
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"default": "Select..."
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},
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"label_updates": {
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"name": "Label updates",
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"type": "boolean",
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"description": "Button label updates when an option is selected from the menu",
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"default": true
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},
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"image": {
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"name": "Icon",
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"type": "string",
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"description": "Add an icon"
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},
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"ro_image": {
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"name": "Read-only Icon",
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"type": "string",
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"description": "Use this icon instead of hiding for read-only"
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},
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"onclick": {
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"description": "JS code which gets executed when the button is clicked"
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},
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"select_options": {
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"type": "any",
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"name": "Select options",
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"default": {},
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"description": "Select options for dropdown. Can be a simple key => value list, or value can be full HTML",
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// Skip normal initialization for this one
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"ignore": true
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},
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"accesskey": {
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"name": "Access Key",
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"type": "string",
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"default": et2_no_init,
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"description": "Alt + <key> activates widget"
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},
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"tabindex": {
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"name": "Tab index",
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"type": "integer",
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"default": et2_no_init,
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"description": "Specifies the tab order of a widget when the 'tab' button is used for navigating."
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},
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// No such thing as a required button
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"required": {
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"ignore": true
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}
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};
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internal_ids : any = {
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div: "",
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button: "",
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menu: ""
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};
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div : JQuery = null;
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buttons : JQuery = null;
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button : JQuery = null;
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arrow : JQuery = null;
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menu : JQuery = null;
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image : JQuery = null;
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clicked : boolean = false;
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label_updates : boolean = true;
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value : any = null;
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/**
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* Default menu, so there is something for the widget browser / editor to show
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*/
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readonly default_menu : string = '<ul> \
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<li data-id="opt_1.1"><a href="#">Option-1.1</a></li>\
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<li data-id="opt_1.2"><a href="#">Option-1.2</a></li>\
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<li data-id="opt_1.3"><a href="#">Option-1.3</a></li>\
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<li data-id="opt_1.4"><a href="#">Option-1.4<br>\
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<small>with second line</small>\
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</a></li>\
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<li data-id="opt_1.5"><a href="#">Option-1.5</a></li>\
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</ul>';
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/**
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* Constructor
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*
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* @memberOf et2_dropdown_button
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*/
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constructor(_parent?, _attrs? : WidgetConfig, _child? : object) {
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super(_parent, _attrs, ClassWithAttributes.extendAttributes(et2_dropdown_button._attributes, _child || {}));
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this.clicked = false;
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let self = this;
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// Create the individual UI elements
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// Menu is a UL
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this.menu = jQuery(this.default_menu).attr("id",this.internal_ids.menu)
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.hide()
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.menu({
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select: function(event,ui) {
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self.onselect.call(self,event,ui.item);
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}
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});
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this.buttons = jQuery(document.createElement("div"))
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.addClass("et2_dropdown");
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// Main "wrapper" div
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this.div = jQuery(document.createElement("div"))
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.attr("id", this.internal_ids.div)
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.append(this.buttons)
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.append(this.menu);
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// Left side - activates click action
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this.button = jQuery(document.createElement("button"))
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.attr("id", this.internal_ids.button)
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.attr("type", "button")
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.addClass("ui-widget ui-corner-left").removeClass("ui-corner-all")
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.appendTo(this.buttons);
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// Right side - shows dropdown
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this.arrow = jQuery(document.createElement("button"))
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.addClass("ui-widget ui-corner-right").removeClass("ui-corner-all")
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.attr("type", "button")
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.click(function() {
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// ignore click on readonly button
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if (self.options.readonly) return false;
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// Clicking it again hides menu
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if(self.menu.is(":visible"))
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{
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self.menu.hide();
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return false;
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}
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// Show menu dropdown
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var menu = self.menu.show().position({
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my: "left top",
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at: "left bottom",
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of: self.buttons
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});
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// Hide menu if clicked elsewhere
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jQuery( document ).one( "click", function() {
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menu.hide();
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});
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return false;
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})
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// This is the actual down arrow icon
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.append("<div class='ui-icon ui-icon-triangle-1-s'/>")
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.appendTo(this.buttons);
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// Common button UI
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this.buttons.children("button")
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.addClass("ui-state-default")
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.hover(
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function() {jQuery(this).addClass("ui-state-hover");},
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function() {jQuery(this).removeClass("ui-state-hover");}
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);
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// Icon
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this.image = jQuery(document.createElement("img"));
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this.setDOMNode(this.div[0]);
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}
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destroy() {
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// Destroy widget
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if(this.menu && this.menu.data('ui-menu')) this.menu.menu("destroy");
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// Null children
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this.image = null;
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this.button = null;
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this.arrow = null;
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this.buttons = null;
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this.menu = null;
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// Remove
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this.div.empty().remove();
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}
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set_id(_id) {
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super.set_id(_id);
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// Update internal IDs - not really needed since we refer by internal
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// javascript reference, but good to keep up to date
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this.internal_ids = {
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div: this.dom_id + "_wrapper",
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button: this.dom_id,
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menu: this.dom_id + "_menu"
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};
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for(let key in this.internal_ids)
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{
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if(this[key] == null) continue;
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this[key].attr("id", this.internal_ids[key]);
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}
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}
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/**
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* Set if the button label changes to match the selected option
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*
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* @param updates boolean Turn updating on or off
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*/
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set_label_updates(updates)
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{
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this.label_updates = updates;
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}
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set_accesskey(key)
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{
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jQuery(this.node).attr("accesskey", key);
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}
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set_ro_image(_image)
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{
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if(this.options.readonly)
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{
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this.set_image(_image);
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}
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}
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set_image(_image)
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{
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if(!this.isInTree() || this.image == null) return;
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if(!_image.trim())
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{
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this.image.hide();
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}
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else
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{
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this.image.show();
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}
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let src = this.egw().image(_image);
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if(src)
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{
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this.image.attr("src", src);
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}
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// allow url's too
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else if (_image[0] == '/' || _image.substr(0,4) == 'http')
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{
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this.image.attr('src', _image);
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}
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else
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{
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this.image.hide();
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}
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}
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/**
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* Overwritten to maintain an internal clicked attribute
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*
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* @param _ev
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* @returns {Boolean}
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*/
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click(_ev)
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{
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// ignore click on readonly button
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if (this.options.readonly) return false;
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this.clicked = true;
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if (!super.click(_ev))
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{
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this.clicked = false;
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return false;
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}
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this.clicked = false;
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return true;
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}
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onselect(event, selected_node)
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{
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this.set_value(selected_node.attr("data-id"));
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this.change(selected_node);
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}
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attachToDOM()
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{
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let res = super.attachToDOM();
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// Move the parent's handler to the button, or we can't tell the difference between the clicks
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jQuery(this.node).unbind("click.et2_baseWidget");
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this.button.off().bind("click.et2_baseWidget", this, function(e) {
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return e.data.click.call(e.data, this);
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});
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return res;
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}
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set_label(_value)
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{
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if (this.button)
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{
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this.label = _value;
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this.button.text(_value)
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.prepend(this.image);
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}
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}
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/**
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* Set the options for the dropdown
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*
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* @param options Object ID => Label pairs
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*/
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set_select_options(options) {
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this.menu.first().empty();
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// Allow more complicated content, if passed
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if(typeof options == "string")
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{
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this.menu.append(options);
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}
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else
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{
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let add_complex = function(node, options)
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{
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for(let key in options)
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{
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let item;
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if(typeof options[key] == "string")
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{
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item = jQuery("<li data-id='"+key+"'><a href='#'>"+options[key]+"</a></li>");
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}
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else if (options[key]["label"])
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{
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item =jQuery("<li data-id='"+key+"'><a href='#'>"+options[key]["label"]+"</a></li>");
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}
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// Optgroup
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else
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{
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item = jQuery("<li><a href='#'>"+key+"</a></li>");
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add_complex(node.append("<ul>"), options[key]);
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}
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node.append(item);
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if(item && options[key].icon)
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{
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// we supply a applicable class for item images
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jQuery('a',item).prepend('<img class="et2_button_icon" src="' + (options[key].icon.match(/^(http|https|\/)/) ? options[key].icon : egw.image(options[key].icon)) +'"/>');
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}
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}
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}
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add_complex(this.menu.first(), options);
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}
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this.menu.menu("refresh");
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}
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/**
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* Set tab index
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*/
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set_tabindex(index)
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{
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jQuery(this.button).attr("tabindex", index);
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}
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set_value(new_value)
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{
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let menu_item = jQuery("[data-id='"+new_value+"']",this.menu);
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if(menu_item.length)
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{
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this.value = new_value;
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if(this.label_updates)
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{
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this.set_label(menu_item.text());
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}
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}
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else
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{
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this.value = null;
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if(this.label_updates)
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{
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this.set_label(this.options.label);
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}
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}
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}
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getValue()
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{
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return this.value;
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}
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/**
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* Set options.readonly
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*
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* @param {boolean} _ro
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*/
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set_readonly(_ro : boolean)
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{
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if (_ro != this.options.readonly)
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{
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this.options.readonly = _ro;
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// don't make readonly dropdown buttons clickable
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if (this.buttons)
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{
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this.buttons.find('button')
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.toggleClass('et2_clickable', !_ro)
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.toggleClass('et2_button_ro', _ro)
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.css('cursor', _ro ? 'default' : 'pointer');
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}
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}
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}
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}
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et2_register_widget(et2_dropdown_button, ["dropdown_button"]);
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