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https://github.com/EGroupware/egroupware.git
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735 lines
21 KiB
JavaScript
735 lines
21 KiB
JavaScript
/**
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* EGroupware eTemplate2 - JS widget for GANTT chart
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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 2014
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* @version $Id$
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*/
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"use strict";
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/*egw:uses
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jsapi.jsapi;
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jquery.jquery;
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/phpgwapi/js/dhtmlxtree/js/dhtmlXCommon.js; // otherwise gantt breaks
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/phpgwapi/js/dhtmlxGantt/codebase/dhtmlxgantt.js;
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et2_core_inputWidget;
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*/
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/**
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* Gantt chart
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*
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* The gantt widget allows children, which are displayed as a header. Any child input
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* widgets are bound as live filters on existing data. The filter is done based on
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* widget ID, such that the value of the widget must match that attribute in the task
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* or the task will not be displayed. There is special handling for
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* date widgets with IDs 'start_date' and 'end_date' to filter as an inclusive range
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* instead of simple equality.
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*
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* @see http://docs.dhtmlx.com/gantt/index.html
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* @augments et2_valueWidget
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*/
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var et2_gantt = et2_valueWidget.extend([et2_IResizeable,et2_IInput],
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{
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// Filters are inside gantt namespace
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createNamespace: true,
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attributes: {
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"autoload": {
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"name": "Autoload",
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"type": "string",
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"default": "",
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"description": "JSON URL or menuaction to be called for projects with no, GET parameter selected contains id"
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},
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"ajax_update": {
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"name": "AJAX update method",
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"type": "string",
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"default": "",
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"description": "AJAX menuaction to be called when the user changes a task. The function should take two parameters: the updated element, and all template values."
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},
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value: {type: 'any'}
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},
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// Common configuration for Egroupware/eTemplate
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gantt_config: {
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// Gantt takes a different format of date format, all the placeholders are prefixed with '%'
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api_date: '%Y-%n-%d %H:%i:%s',
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xml_date: '%Y-%n-%d %H:%i:%s',
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// Duration is a unitless field. This is the unit.
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duration_unit: 'minute',
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show_progress: true,
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order_branch: true,
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min_column_width: 30,
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fit_tasks: true,
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autosize: '',
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// Date rounding happens either way, but this way it rounds to the displayed grid resolution
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// Also avoids a potential infinite loop thanks to how the dates are rounded with false
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round_dnd_dates: false,
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// Round resolution
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time_step: parseInt(this.egw().preference('interval','calendar') || 15),
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min_duration: 1 * 60 * 1000, // 1 minute
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scale_unit: 'day',
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date_scale: '%d',
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subscales: [
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{unit:"month", step:1, date:"%F, %Y"},
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//{unit:"hour", step:1, date:"%G"}
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],
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columns: [
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{name: "text", label: egw.lang('Title'), tree: true, width: '*'}
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]
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},
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init: function(_parent, _attrs) {
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// _super.apply is responsible for the actual setting of the params (some magic)
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this._super.apply(this, arguments);
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// Gantt instance
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this.gantt = null;
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// DOM Nodes
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this.filters = $j(document.createElement("div"))
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.addClass('et2_gantt_header');
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this.gantt_node = $j('<div style="width:100%;height:100%"></div>');
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this.htmlNode = $j(document.createElement("div"))
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.css('height', this.options.height)
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.addClass('et2_gantt');
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this.htmlNode.prepend(this.filters);
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this.htmlNode.append(this.gantt_node);
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// Create the dynheight component which dynamically scales the inner
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// container.
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this.dynheight = new et2_dynheight(
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this.getParent().getDOMNode(this.getParent()) || this.getInstanceManager().DOMContainer,
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this.gantt_node, 300
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);
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this.setDOMNode(this.htmlNode[0]);
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},
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destroy: function() {
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if(this.gantt !== null)
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{
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this.gantt.detachAllEvents();
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this.gantt.clearAll();
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this.gantt = null;
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// Destroy dynamic full-height
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if(this.dynheight) this.dynheight.free();
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this._super.apply(this, arguments);}
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this.htmlNode.remove();
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this.htmlNode = null;
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},
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doLoadingFinished: function() {
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this._super.apply(this, arguments);
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if(this.gantt != null) return false;
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var config = jQuery.extend({}, this.gantt_config);
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// Set initial values for start and end, if those filters exist
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var start_date = this.getWidgetById('start_date');
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var end_date = this.getWidgetById('end_date');
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if(start_date)
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{
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config.start_date = start_date.getValue() ? new Date(start_date.getValue() * 1000) : null;
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}
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if(end_date)
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{
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config.end_date = end_date.getValue() ? new Date(end_date.getValue() * 1000): null;
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}
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// Initialize chart
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this.gantt = this.gantt_node.dhx_gantt(config);
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if(this.options.value)
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{
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this.set_value(this.options.value);
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}
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// Update start & end dates with chart values for consistency
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if(start_date)
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{
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start_date.set_value(this.gantt.getState().min_date);
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}
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if(end_date)
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{
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end_date.set_value(this.gantt.getState().max_date);
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}
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// Bind some events to make things nice and et2
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this._bindGanttEvents();
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// Bind filters
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this._bindChildren();
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return true;
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},
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getDOMNode: function(_sender) {
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// Return filter container for children
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if (_sender != this && this._children.indexOf(_sender) != -1)
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{
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return this.filters[0];
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}
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// Normally simply return the main div
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return this._super.apply(this, arguments);
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},
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/**
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* Implement the et2_IResizable interface to resize
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*/
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resize: function()
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{
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if(this.dynheight)
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{
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this.dynheight.update(function(w,h) {
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this.gantt.setSizes();
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}, this);
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}
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else
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{
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this.gantt.setSizes();
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}
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},
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/**
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* Sets the data to be displayed in the gantt chart.
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*
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* Data is a JSON object with 'data' and 'links', both of which are arrays.
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* {
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* data:[
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* {id:1, text:"Project #1", start_date:"01-04-2013", duration:18},
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* {id:2, text:"Task #1", start_date:"02-04-2013", duration:8, parent:1},
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* {id:3, text:"Task #2", start_date:"11-04-2013", duration:8, parent:1}
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* ],
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* links:[
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* {id:1, source:1, target:2, type:"1"},
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* {id:2, source:2, target:3, type:"0"}
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* ]
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* };
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* Any additional data can be included and used, but the above is the minimum
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* required data.
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*
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* @see http://docs.dhtmlx.com/gantt/desktop__loading.html
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*/
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set_value: function(value) {
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if(this.gantt == null) return false;
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// Ensure proper format, no extras
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var safe_value = {
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data: value.data || [],
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links: value.links || []
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};
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this.gantt.parse(safe_value);
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// Set some things from the value
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// Set zoom
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if(!this.options.zoom) this.set_zoom();
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// If this is not the first gantt chart the browser renders, sometimes it needs a nudge
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try
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{
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this.gantt.render();
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}
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catch (e)
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{
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this.egw().debug('warning', 'Problem rendering gantt', e);
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}
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},
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/**
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* getValue has to return the value of the input widget
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*/
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getValue: function() {
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return this.value;
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},
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/**
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* Is dirty returns true if the value of the widget has changed since it
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* was loaded.
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*/
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isDirty: function() {
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return this.value != null;
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},
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/**
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* Causes the dirty flag to be reseted.
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*/
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resetDirty: function() {
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this.value = null;
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},
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/**
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* Checks the data to see if it is valid, as far as the client side can tell.
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* Return true if it's not possible to tell on the client side, because the server
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* will have the chance to validate also.
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*
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* The messages array is to be populated with everything wrong with the data,
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* so don't stop checking after the first problem unless it really makes sense
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* to ignore other problems.
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*
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* @param {String[]} messages List of messages explaining the failure(s).
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* messages should be fairly short, and already translated.
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*
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* @return {boolean} True if the value is valid (enough), false to fail
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*/
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isValid: function(messages) {return true},
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/**
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* Set a URL to fetch the data from the server.
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* Data must be in the specified format.
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* @see http://docs.dhtmlx.com/gantt/desktop__loading.html
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*/
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set_autoload: function(url) {
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if(this.gantt == null) return false;
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this.options.autoloading = url;
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throw new Exception('Not implemented yet - apparently loading segments is not supported automatically');
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},
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/**
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* Sets the level of detail for the chart, which adjusts the scale(s) across the
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* top and the granularity of the drag grid.
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*
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* Gantt chart needs a render() after changing.
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*
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* @param {int} level Higher levels show more grid, at larger granularity.
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* @return {int} Current level
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*/
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set_zoom: function(level) {
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var subscales = [];
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var scale_unit = 'day';
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var date_scale = '%d';
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var step = 1;
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var time_step = this.gantt_config.time_step;
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var min_column_width = this.gantt_config.min_column_width;
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// No level? Auto calculate.
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if(level > 4) level = 4;
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if(!level || level < 1) {
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// Make sure we have the most up to date info for the calculations
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// There may be a more efficient way to trigger this though
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try {
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this.gantt.render();
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}
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catch (e)
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{}
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var difference = (this.gantt.getState().max_date - this.gantt.getState().min_date)/1000; // seconds
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// Spans more than a year
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if(difference > 31536000 || this.gantt.getState().max_date.getFullYear() != this.gantt.getState().min_date.getFullYear())
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{
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level = 4;
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}
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// More than 2 months
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else if(difference > 5256000 || this.gantt.getState().max_date.getMonth() != this.gantt.getState().min_date.getMonth())
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{
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level = 3;
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}
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// More than 3 days
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else if (difference > 259200)
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{
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level = 2;
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}
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else
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{
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level = 1;
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}
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}
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// Adjust Gantt settings for specified level
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switch(level)
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{
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case 4:
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// A year or more, scale in weeks
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subscales.push({unit: "month", step: 1, date: '%F %Y'});
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scale_unit = 'week';
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date_scale= '#%W';
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break;
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case 3:
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// Less than a year, several months
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subscales.push({unit: "month", step: 1, date: '%F %Y', class: 'et2_clickable'});
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break;
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case 2:
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default:
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// About a month
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subscales.push({unit: "day", step: 1, date: '%F %d'});
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scale_unit = 'hour';
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date_scale = this.egw().preference('timeformat') == '24' ? "%G" : "%g";
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break;
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case 1: // A day or two, scale in Minutes
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subscales.push({unit: "day", step: 1, date: '%F %d'});
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date_scale = this.egw().preference('timeformat') == '24' ? "%G:%i" : "%g:%i";
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step = parseInt(this.egw().preference('interval','calendar') || 15);
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time_step = 1;
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scale_unit = 'minute';
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min_column_width = 50;
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break;
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}
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// Apply settings
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this.gantt.config.subscales = subscales;
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this.gantt.config.scale_unit = scale_unit;
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this.gantt.config.date_scale = date_scale;
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this.gantt.config.step = step;
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this.gantt.config.time_step = time_step;
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this.gantt.config.min_column_width = min_column_width;
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this.options.zoom = level;
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return level;
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},
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/**
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* Bind all the internal gantt events for nice widget actions
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*/
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_bindGanttEvents: function() {
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var gantt_widget = this;
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// After the chart renders, resize to make sure it's all showing
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this.gantt.attachEvent("onGanttRender", function() {
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// Timeout gets around delayed rendering
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window.setTimeout(function() {
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gantt_widget.resize();
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},100);
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});
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// Click on scale to zoom - top zooms out, bottom zooms in
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this.gantt_node.on('click','.gantt_scale_line', function(e) {
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var current_position = e.target.offsetLeft / $j(e.target.parentNode).width();
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// Some crazy stuff make sure timing is OK to scroll after re-render
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// TODO: Make this more consistently go to where you click
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var id = gantt_widget.gantt.attachEvent("onGanttRender", function() {
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console.log('Render');
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gantt_widget.gantt.detachEvent(id);
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gantt_widget.gantt.scrollTo(parseInt($j('.gantt_task_scale',gantt_widget.gantt_node).width() *current_position),0);
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window.setTimeout(function() {
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console.log("Scroll to");
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gantt_widget.gantt.scrollTo(parseInt($j('.gantt_task_scale',gantt_widget.gantt_node).width() *current_position),0);
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},100);
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});
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if(this.parentNode.firstChild == this)
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{
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// Zoom out
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gantt_widget.set_zoom(gantt_widget.options.zoom + 1);
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gantt_widget.gantt.render();
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}
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else if (gantt_widget.options.zoom > 1)
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{
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// Zoom in
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gantt_widget.set_zoom(gantt_widget.options.zoom - 1);
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gantt_widget.gantt.render();
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}
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/*
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window.setTimeout(function() {
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console.log("Scroll to");
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gantt_widget.gantt.scrollTo(parseInt($j('.gantt_task_scale',gantt_widget.gantt_node).width() *current_position),0);
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},50);
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*/
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});
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this.gantt.attachEvent("onContextMenu",function(taskId, linkId, e) {
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gantt_widget._link_task(taskId);
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return false;
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})
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// Double click
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this.gantt.attachEvent("onBeforeLightbox", function(id) {
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gantt_widget._link_task(id);
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// Don't do gantt default actions, actions handle it
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return false;
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});
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// Update server after dragging a task
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this.gantt.attachEvent("onAfterTaskDrag", function(id, mode, e) {
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var task = jQuery.extend({},this.getTask(id));
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// Gantt chart deals with dates as Date objects, format as server likes
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var date_parser = this.date.date_to_str(this.config.api_date);
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if(task.start_date) task.start_date = date_parser(task.start_date);
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if(task.end_date) task.end_date = date_parser(task.end_date);
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var value = gantt_widget.getInstanceManager().getValues(gantt_widget.getInstanceManager().widgetContainer);
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if(gantt_widget.options.ajax_update)
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{
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var request = gantt_widget.egw().json(gantt_widget.options.ajax_update,
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[task,value]
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).sendRequest(true);
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}
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});
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// Update server for links
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var link_update = function(id, link) {
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if(gantt_widget.options.ajax_update)
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{
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link.parent = this.getTask(link.source).parent;
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var value = gantt_widget.getInstanceManager().getValues(gantt_widget.getInstanceManager().widgetContainer);
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var request = gantt_widget.egw().json(gantt_widget.options.ajax_update,
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[link,value], function(new_id) {
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if(new_id)
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{
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link.id = new_id;
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}
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}
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).sendRequest(true);
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}
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};
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this.gantt.attachEvent("onAfterLinkAdd", link_update);
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this.gantt.attachEvent("onAfterLinkDelete", link_update);
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// Bind AJAX for dynamic expansion
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// TODO: This could be improved
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this.gantt.attachEvent("onTaskOpened", function(id, item) {
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// Node children are already there & displayed
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var value = gantt_widget.getInstanceManager().getValues(gantt_widget.getInstanceManager().widgetContainer);
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var request = gantt_widget.egw().json(gantt_widget.options.autoload,
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[id,value],
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function(data) {
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this.parse(data);
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},
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this,true,this
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).sendRequest();
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});
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// Filters
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this.gantt.attachEvent("onBeforeTaskDisplay", function(id, task) {
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var display = true;
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gantt_widget.iterateOver(function(_widget){
|
|
switch(_widget.id)
|
|
{
|
|
// Start and end date are an interval. Also update the chart to
|
|
// display those dates. Special handling because date widgets give
|
|
// value in timestamp (seconds), gantt wants Date object (ms)
|
|
case 'start_date':
|
|
if(_widget.getValue())
|
|
{
|
|
display = display && ((task[_widget.id].valueOf() / 1000) >= _widget.getValue());
|
|
}
|
|
return;
|
|
case 'end_date':
|
|
// End date is not actually a required field, so accept undefined too
|
|
if(_widget.getValue())
|
|
{
|
|
display = display && (typeof task[_widget.id] == 'undefined' || !task[_widget.id] || ((task[_widget.id].valueOf() / 1000) <= _widget.getValue()));
|
|
}
|
|
return;
|
|
}
|
|
|
|
// Regular equality comparison
|
|
if(_widget.getValue() && typeof task[_widget.id] != 'undefined')
|
|
{
|
|
if (task[_widget.id] != _widget.getValue())
|
|
{
|
|
display = false;
|
|
}
|
|
// Special comparison for objects, any intersection is a match
|
|
if(!display && typeof task[_widget.id] == 'object' || typeof _widget.getValue() == 'object')
|
|
{
|
|
var a = typeof task[_widget.id] == 'object' ? task[_widget.id] : _widget.getValue();
|
|
var b = a == task[_widget.id] ? _widget.getValue() : task[_widget.id];
|
|
if(typeof b == 'object')
|
|
{
|
|
display = jQuery.map(a,function(x) {
|
|
return jQuery.inArray(x,b) >= 0;
|
|
});
|
|
}
|
|
else
|
|
{
|
|
display = jQuery.inArray(b,a) >= 0;
|
|
}
|
|
}
|
|
}
|
|
},gantt_widget, et2_inputWidget);
|
|
return display;
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Bind onchange for any child input widgets
|
|
*/
|
|
_bindChildren: function() {
|
|
var gantt_widget = this;
|
|
this.iterateOver(function(_widget){
|
|
// Existing change function
|
|
var widget_change = _widget.change;
|
|
|
|
var change = function(_node) {
|
|
// Call previously set change function
|
|
var result = widget_change.call(_widget,_node);
|
|
|
|
// Update filters
|
|
if(result && _widget.isDirty()) {
|
|
// Update dirty
|
|
_widget._oldValue = _widget.getValue();
|
|
|
|
// Start date & end date change the display
|
|
if(_widget.id == 'start_date' || _widget.id == 'end_date')
|
|
{
|
|
var start = this.getWidgetById('start_date');
|
|
var end = this.getWidgetById('end_date');
|
|
gantt_widget.gantt.config.start_date = start && start.getValue() ? new Date(start.getValue() * 1000) : gantt_widget.gantt.getState().min_date;
|
|
gantt_widget.gantt.config.end_date = end && end.getValue() ? new Date(end.getValue() * 1000) : gantt_widget.gantt.getState().max_date;
|
|
if(gantt_widget.gantt.config.end_date <= gantt_widget.gantt.config.start_date)
|
|
{
|
|
gantt_widget.gantt.config.end_date = null;
|
|
if(end) end.set_value(null);
|
|
}
|
|
gantt_widget.set_zoom();
|
|
gantt_widget.gantt.render();
|
|
}
|
|
|
|
gantt_widget.gantt.refreshData();
|
|
}
|
|
// In case this gets bound twice, it's important to return
|
|
return true;
|
|
};
|
|
|
|
if(_widget.change != change) _widget.change = change;
|
|
}, this, et2_inputWidget);
|
|
},
|
|
|
|
/**
|
|
* Link the actions to the DOM nodes / widget bits.
|
|
* Overridden to make the gantt chart a container, so it can't be selected.
|
|
* Because the chart handles its own AJAX fetching and parsing, for this widget
|
|
* we're trying dynamic binding as needed, rather than binding every single task
|
|
*
|
|
* @param {object} actions {ID: {attributes..}+} map of egw action information
|
|
*/
|
|
_link_actions: function(actions)
|
|
{
|
|
|
|
this._super.apply(this, arguments);
|
|
|
|
// Submit with most actions
|
|
this._actionManager.setDefaultExecute(jQuery.proxy(function(action, selected) {
|
|
var ids = [];
|
|
for(var i = 0; i < selected.length; i++)
|
|
{
|
|
ids.push(selected[i].id);
|
|
}
|
|
this.value = {
|
|
action: action.id,
|
|
selected: ids
|
|
};
|
|
|
|
// downloads need a regular submit via POST (no Ajax)
|
|
if (action.data.postSubmit)
|
|
{
|
|
this.getInstanceManager().postSubmit();
|
|
}
|
|
else
|
|
{
|
|
this.getInstanceManager().submit();
|
|
}
|
|
}, this));
|
|
|
|
// Get the top level element for the tree
|
|
var objectManager = egw_getAppObjectManager(true);
|
|
var widget_object = objectManager.getObjectById(this.id);
|
|
widget_object.flags = EGW_AO_FLAG_IS_CONTAINER;
|
|
},
|
|
|
|
/**
|
|
* Bind a single task as needed to the action system. This is instead of binding
|
|
* every single task at the start.
|
|
*
|
|
* @param {string} taskId
|
|
*/
|
|
_link_task: function(taskId)
|
|
{
|
|
if(!taskId) return;
|
|
var objectManager = egw_getObjectManager(this.id,false);
|
|
var obj = null;
|
|
if(!(obj = objectManager.getObjectById(taskId)))
|
|
{
|
|
obj = objectManager.addObject(taskId, this.dhtmlxGanttItemAOI(this.gantt,taskId));
|
|
obj.data = this.gantt.getTask(taskId);
|
|
obj.updateActionLinks(objectManager.actionLinks)
|
|
}
|
|
objectManager.setAllSelected(false);
|
|
obj.setSelected(true);
|
|
objectManager.updateSelectedChildren(obj,true)
|
|
},
|
|
|
|
/**
|
|
* ActionObjectInterface for gantt chart
|
|
*/
|
|
dhtmlxGanttItemAOI: function(gantt, task_id)
|
|
{
|
|
var aoi = new egwActionObjectInterface();
|
|
|
|
// Retrieve the actual node from the chart
|
|
aoi.node = gantt.getTaskNode(task_id);
|
|
aoi.id = task_id;
|
|
aoi.doGetDOMNode = function() {
|
|
return aoi.node;
|
|
}
|
|
|
|
aoi.doTriggerEvent = function(_event) {
|
|
if (_event == EGW_AI_DRAG_OVER)
|
|
{
|
|
$j(this.node).addClass("draggedOver");
|
|
}
|
|
if (_event == EGW_AI_DRAG_OUT)
|
|
{
|
|
$j(this.node).removeClass("draggedOver");
|
|
}
|
|
}
|
|
|
|
aoi.doSetState = function(_state) {
|
|
if(!gantt || !gantt.isTaskExists(this.id)) return;
|
|
|
|
if(egwBitIsSet(_state, EGW_AO_STATE_SELECTED))
|
|
{
|
|
gantt.selectTask(this.id); // false = do not trigger onSelect
|
|
}
|
|
else
|
|
{
|
|
gantt.unselectTask(this.id);
|
|
}
|
|
}
|
|
|
|
return aoi;
|
|
}
|
|
|
|
});
|
|
et2_register_widget(et2_gantt, ["gantt"]);
|
|
|
|
/**
|
|
* Common look, feel & settings for all Gantt charts
|
|
*/
|
|
// Localize to user's language - breaks if file is not there
|
|
//egw.includeJS("/phpgwapi/js/dhtmlxGantt/codebase/locale/locale_" + egw.preference('lang') + ".js");
|
|
|
|
$j(function() {
|
|
// Set icon to match application
|
|
gantt.templates.grid_file = function(item) {
|
|
if(!item.pe_app || !egw.image(item.pe_icon)) return "<div class='gantt_tree_icon gantt_file'></div>";
|
|
return "<div class='gantt_tree_icon' style='background-image: url(\"" + egw.image(item.pe_icon) + "\");'/></div>";
|
|
}
|
|
|
|
// CSS for scale row, turns on clickable
|
|
gantt.templates.scale_row_class = function(scale) {
|
|
if(scale.unit != 'minute' && scale.unit != 'month')
|
|
{
|
|
return scale.class || 'et2_clickable';
|
|
}
|
|
return scale.class;
|
|
}
|
|
}); |