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egroupware_official/etemplate/js/et2_widget_tree.js

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/**
* EGroupware eTemplate2 - JS Tree object
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*
* @link http://community.egroupware.org/egroupware/phpgwapi/js/dhtmlxtree/docsExplorer/dhtmlxtree/
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link http://www.egroupware.org
* @author Nathan Gray
* @author Ralf Becker
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* @copyright Nathan Gray 2011
* @version $Id$
*/
"use strict";
/*egw:uses
et2_core_inputWidget;
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/phpgwapi/js/egw_action/egw_dragdrop_dhtmlx_tree.js;
/phpgwapi/js/dhtmlxtree/codebase/dhtmlxcommon.js;
// using debugable and fixed source of dhtmltree instead: /phpgwapi/js/dhtmlxtree/js/dhtmlXTree.js;
/phpgwapi/js/dhtmlxtree/sources/dhtmlxtree.js;
/phpgwapi/js/dhtmlxtree/sources/ext/dhtmlxtree_json.js;
// /phpgwapi/js/dhtmlxtree/sources/ext/dhtmlxtree_start.js;
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*/
/**
* Tree widget
*
* For syntax of nodes supplied via sel_optons or autoloading refer to etemplate_widget_tree class.
*
* @augments et2_inputWidget
*/
var et2_tree = et2_inputWidget.extend(
{
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attributes: {
"multiple": {
"name": "multiple",
"type": "boolean",
"default": false,
"description": "Allow selecting multiple options"
},
"select_options": {
"type": "any",
"name": "Select options",
"default": {},
"description": "Used to set the tree options."
},
"onclick": {
"description": "JS code which gets executed when clicks on text of a node"
},
"onselect": {
"name": "onSelect",
"type": "js",
"default": et2_no_init,
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"description": "Javascript executed when user selects a node"
},
"oncheck": {
"name": "onCheck",
"type": "js",
"default": et2_no_init,
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"description": "Javascript executed when user checks a node"
},
// onChange event is mapped depending on multiple to onCheck or onSelect
onopenstart: {
"name": "onOpenStart",
"type": "js",
"default": et2_no_init,
"description": "Javascript function executed when user opens a node: function(_id, _widget, _hasChildren) returning true to allow opening!"
},
onopenend: {
"name": "onOpenEnd",
"type": "js",
"default": et2_no_init,
"description": "Javascript function executed when opening a node is finished: function(_id, _widget, _hasChildren)"
},
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"image_path": {
"name": "Image directory",
"type": "string",
"default": this.egw().webserverUrl + "/phpgwapi/templates/default/images/dhtmlxtree/",
"description": "Directory for tree structure images"
},
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"value": {
"type": "any",
"default": {}
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},
"actions": {
"name": "Actions array",
"type": "any",
"default": et2_no_init,
"description": "List of egw actions that can be done on the tree. This includes context menu, drag and drop. TODO: Link to action documentation"
},
"autoloading": {
"name": "Autoloading",
"type": "string",
"default": "",
"description": "JSON URL or menuaction to be called for nodes marked with child=1, but not having children, GET parameter selected contains node-id"
},
"std_images": {
"name": "Standard images",
"type": "string",
"default": "",
"description": "comma-separated names of icons for a leaf, closed and opend folder (default: leaf.gif,folderClosed.gif,folderOpen.gif), images with extension get loaded from image_path, just 'image' or 'appname/image' are allowed too"
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}
},
/**
* Constructor
*
* @memberOf et2_tree
*/
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init: function() {
this._super.apply(this, arguments);
this.input = null;
this.div = $j(document.createElement("div")).addClass("dhtmlxTree");
this.setDOMNode(this.div[0]);
},
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destroy: function() {
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if(this.input)
{
this.input.destructor();
}
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this.input = null;
this._super.apply(this, arguments);
},
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/**
* Get tree items from the sel_options data array
*
* @param {object} _attrs
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*/
transformAttributes: function(_attrs) {
this._super.apply(this, arguments);
// If select_options are already known, skip the rest
if(this.options && this.options.select_options && !jQuery.isEmptyObject(this.options.select_options))
{
return;
}
var name_parts = this.id.replace(/]/g,'').split('[');
// Try to find the options inside the "sel-options" array
if(this.getArrayMgr("sel_options"))
{
// Select options tend to be defined once, at the top level, so try that first
var content_options = this.getArrayMgr("sel_options").getRoot().getEntry(name_parts[name_parts.length-1]);
// Try again according to ID
if(!content_options) content_options = this.getArrayMgr("sel_options").getEntry(this.id);
if(_attrs["select_options"] && !jQuery.isEmptyObject(_attrs["select_options"]) && content_options)
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{
_attrs["select_options"] = jQuery.extend({},_attrs["select_options"],content_options);
} else if (content_options) {
_attrs["select_options"] = content_options;
}
}
// Check whether the options entry was found, if not read it from the
// content array.
if (_attrs["select_options"] == null)
{
// Again, try last name part at top level
var content_options = this.getArrayMgr('content').getRoot().getEntry(name_parts[name_parts.length-1]);
// If that didn't work, check according to ID
_attrs["select_options"] = content_options ? content_options : this.getArrayMgr('content')
.getEntry("options-" + this.id);
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}
// Default to an empty object
if (_attrs["select_options"] == null)
{
_attrs["select_options"] = {};
}
},
// overwrite default onclick to do nothing, as we install onclick via dhtmlxtree
click: function(_node) {},
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createTree: function(widget) {
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widget.input = new dhtmlXTreeObject({
parent: widget.div[0],
width: '100%',
height: '100%',
image_path: widget.options.image_path,
checkbox: widget.options.multiple
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});
// to allow "," in value, eg. folder-names, IF value is specified as array
widget.input.dlmtr = ':}-*(';
if (widget.options.std_images)
{
widget.setImages.apply(widget, widget.options.std_images.split(','));
}
// Add in the callback so we can keep the two in sync
widget.input.AJAX_callback = function(dxmlObject) {
widget._dhtmlxtree_json_callback(JSON.parse(dxmlObject.xmlDoc.responseText), widget.input.lastLoadedXMLId);
};
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if (widget.options.autoloading)
{
var url = widget.options.autoloading;
if (url.charAt(0) != '/' && url.substr(0,4) != 'http')
{
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url = '/json.php?menuaction='+url;
}
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this.autoloading_url = url;
widget.input.setXMLAutoLoading(egw.link(url));
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widget.input.setDataMode('JSON');
}
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},
/**
* Install event handlers on tree
*
* @param _name
* @param _handler
*/
_install_handler: function(_name, _handler)
{
if (typeof _handler == 'function')
{
if(this.input == null) this.createTree(this);
// automatic convert onChange event to oncheck or onSelect depending on multiple is used or not
if (_name == 'onchange') _name = this.options.multiple ? 'oncheck' : 'onselect';
var handler = _handler;
var widget = this;
this.input.attachEvent(_name, function(_id){
var args = jQuery.makeArray(arguments);
// splice in widget as 2. parameter, 1. is new node-id, now 3. is old node id
args.splice(1, 0, widget);
return handler.apply(this, args);
});
}
},
set_onchange: function(_handler) { this._install_handler('onchange', _handler); },
set_onclick: function(_handler) { this._install_handler('onclick', _handler); },
set_onselect: function(_handler) { this._install_handler('onselect', _handler); },
set_onopenstart: function(_handler) { this._install_handler('onOpenStart', _handler); },
set_onopenend: function(_handler) { this._install_handler('onOpenEnd', _handler); },
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set_select_options: function(options)
{
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var custom_images = false;
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this.options.select_options = options;
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if(this.input == null)
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{
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this.createTree(this);
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}
// Structure data for category tree
if(this._type == 'tree-cat')
{
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var data = {id:0,item:[]};
var stack = {};
for(var key=0; key < options.length; key++)
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{
// See if item has an icon
if(options[key].data && typeof options[key].data.icon !== 'undefined' && options[key].data.icon)
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{
var img = this.egw().image(options[key].data.icon, options[key].appname);
if(img)
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{
custom_images = true;
options[key].im0 = options[key].im1 = options[key].im2 = img;
}
}
// Item color - not working
if(options[key].data && typeof options[key].data.color !== 'undefined' && options[key].data.color)
{
options[key].style = options[key].style || "" + "background-color:'"+options[key].data.color+"';";
}
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// Tooltip
if(options[key].description && !options[key].tooltip)
{
options[key].tooltip = options[key].description;
}
var parent_id = parseInt(options[key]['parent']);
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if(isNaN(parent_id)) parent_id = 0;
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if(!stack[parent_id]) stack[parent_id] = [];
stack[parent_id].push(options[key]);
}
if(custom_images)
{
var path = this.input.iconURL;
this.input.setIconPath("");
for(var k = 0; k < this.input.imageArray.length; k++)
this.input.imageArray[k] = path + this.input.imageArray[k];
}
var f=function(data,f) {
if (stack[data.id])
{
data.item=stack[data.id];
for (var j=0; j<data.item.length; j++)
{
f(data.item[j],f);
}
}
};
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f(data,f);
options = data;
}
// if no options given, but autoloading url, use that to load initial nodes
if (typeof options.id == 'undefined' && this.input.XMLsource)
this.input.loadJSON(this.input.XMLsource);
else
this.input.loadJSONObject(this._htmlencode_node(options));
},
/**
* Regexp used by _htmlencode
*/
_lt_regexp: /</g,
/**
* html encoding of text of node
*
* We only do a minimal html encoding by replacing opening bracket < with &lt;
* as tree seems not to need more and we dont want to waste time.
*
* @param {string} _text text to encode
* @return {string}
*/
_htmlencode: function(_text)
{
if (_text && _text.indexOf('<') >= 0)
{
_text = _text.replace(this._lt_regexp, '&lt;');
}
return _text;
},
/**
* html encoding of text of node incl. all children
*
* @param {object} _item with required attributes text, id and optional tooltip and item
* @return {object} encoded node
*/
_htmlencode_node: function(_item)
{
_item.text = this._htmlencode(_item.text);
if (_item.item && jQuery.isArray(_item.item))
{
for(var i=0; i < _item.item.length; ++i)
{
this._htmlencode_node(_item.item[i]);
}
}
return _item;
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},
set_value: function(new_value) {
this.value = this._oldValue = (typeof new_value === 'string' && this.options.multiple ? new_value.split(',') : new_value);
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if(this.input == null) return;
if (this.options.multiple)
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{
// Clear all checked
var checked = this.input.getAllChecked().split(this.input.dlmtr);
for(var i = 0; i < checked.length; i++)
{
this.input.setCheck(checked[i], false);
}
// Check selected
for(var i = 0; i < this.value.length; i++)
{
this.input.setCheck(this.value[i], true);
this.input.openItem(this.value[i]);
}
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}
else
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{
this.input.selectItem(this.value, false); // false = do not trigger onSelect
this.input.focusItem(this.value);
this.input.openItem(this.value);
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}
},
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/**
* Links actions to tree nodes
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*
* @param {object} actions [ {ID: attributes..}+] as for set_actions
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*/
_link_actions: function(actions)
{
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// Get the top level element for the tree
// Only look 1 level deep for application object manager
var objectManager = egw_getObjectManager(this.egw().appName,true,1);
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var treeObj = objectManager.getObjectById(this.id);
if (treeObj == null) {
// Add a new container to the object manager which will hold the tree
// objects
treeObj = objectManager.addObject(
new egwActionObject(this.id, objectManager, null, this._actionManager, EGW_AO_FLAG_IS_CONTAINER),
null, EGW_AO_FLAG_IS_CONTAINER
);
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}
// Delete all old objects
treeObj.clear();
// Go over the tree parts & add links
var action_links = this._get_action_links(actions);
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if (typeof this.options.select_options != 'undefined')
{
// Iterate over the options (leaves) and add action to each one
var apply_actions = function(treeObj, option)
{
// Add a new action object to the object manager
var obj = treeObj.addObject((typeof option.id == 'number'?String(option.id):option.id), new dhtmlxtreeItemAOI(this.input, option.id));
obj.updateActionLinks(action_links);
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if(option.item && option.item.length > 0)
{
for(var i = 0; i < option.item.length; i++)
{
apply_actions.call(this, treeObj, option.item[i]);
}
}
};
apply_actions.call(this, treeObj, this.options.select_options);
}
},
/**
* getValue, retrieves the Id of the selected Item
* @return string or object or null
*/
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getValue: function() {
if(this.input == null) return null;
return this.options.multiple ? this.input.getAllChecked().split(this.input.dlmtr) : this.input.getSelectedItemId();
},
/**
* getSelectedLabel, retrieves the Label of the selected Item
* @return string or null
*/
getSelectedLabel: function() {
if(this.input == null) return null;
if (this.options.multiple)
{
/*
var out = [];
var checked = this.input.getAllChecked().split(this.input.dlmtr);
for(var i = 0; i < checked.length; i++)
{
out.push(this.input.getItemText(checked[i]));
}
return out;
*/
return null; // not supported yet
}
else
{
return this.input.getSelectedItemText();
}
},
/**
* renameItem, renames an item by id
*
* @param {string} _id ID of the node
* @param {string} _newItemId ID of the node
* @param {string} _label label to set
*/
renameItem: function(_id, _newItemId, _label) {
if(this.input == null) return null;
this.input.changeItemId(_id,_newItemId);
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// Update action
// since the action ID has to = this.id, getObjectById() won't work
var treeObj = egw_getAppObjectManager().getObjectById(this.id);
for(var i=0; i < treeObj.children.length; i++)
{
if(treeObj.children[i].id == _id)
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{
treeObj.children[i].id = _newItemId;
if (treeObj.children[i].iface) treeObj.children[i].iface.id = _newItemId;
break;
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}
}
if (typeof _label != 'undefined') this.setLabel(_newItemId, _label);
},
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/**
* deleteItem, deletes an item by id
* @param _id ID of the node
* @param _selectParent select the parent node true/false
* @return void
*/
deleteItem: function(_id, _selectParent) {
if(this.input == null) return null;
this.input.deleteItem(_id, _selectParent);
// Update action
// since the action ID has to = this.id, getObjectById() won't work
var treeObj = egw_getAppObjectManager().getObjectById(this.id);
for(var i=0; i < treeObj.children.length; i++)
{
if(treeObj.children[i].id == _id)
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{
treeObj.children.splice(i,1);
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}
}
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},
/**
* Updates a leaf of the tree by requesting new information from the server using the
* autoloading attribute.
*
* @param {string} _id ID of the node
* @param {Object} [data] If provided, the item is refreshed directly with
* the provided data instead of asking the server
* @return void
*/
refreshItem: function(_id,data) {
if(this.input == null) return null;
this.input.deleteChildItems(_id);
this.input.setDataMode('JSON');
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/* Can't use this, it doesn't allow a callback
this.input.refreshItem(_id);
*/
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var self = this;
if(typeof data != 'undefined' && data != null)
{
this.input.loadJSONObject(data,
function() { self._dhtmlxtree_json_callback(data, _id);}
);
}
else
{
this.input.loadJSON(this.egw().link(this.autoloading_url, {id: _id}),
function(dxmlObject) {self._dhtmlxtree_json_callback(JSON.parse(dxmlObject.xmlDoc.responseText), _id);}
);
}
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},
/**
* focus the item, and scrolls it into view
*
* @param _id ID of the node
* @return void
*/
focusItem: function(_id) {
if(this.input == null) return null;
this.input.focusItem(_id);
},
/**
* hasChildren
*
* @param _id ID of the node
* @return the number of childelements
*/
hasChildren: function(_id) {
if(this.input == null) return null;
return this.input.hasChildren(_id);
},
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/**
* Callback for after using dhtmlxtree's AJAX loading
* The tree has visually already been updated at this point, we just need
* to update the internal data.
*
* @param {object} new_data Fresh data for the tree
* @param {string} update_option_id optional If provided, only update that node (and children) with the
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* provided data instead of the whole thing. Allows for partial updates.
* @return void
*/
_dhtmlxtree_json_callback: function(new_data, update_option_id) {
// not sure if it makes sense to try update_option_id, so far I only seen it to be -1
var parent_id = typeof update_option_id != 'undefined' && update_option_id != -1 ? update_option_id : new_data.id;
// find root of loaded data to merge it there
var option = this._find_in_item(parent_id, this.options.select_options);
// if we found it, merge it
if (option)
{
jQuery.extend(option,new_data || {});
}
else // else store it in root
{
this.options.select_options = new_data;
}
// Update actions by just re-setting them
this.set_actions(this.options.actions || {});
},
/**
* Recursive search item object for given id
*
* @param {string} _id
* @param {object} _item
* @returns
*/
_find_in_item: function(_id, _item)
{
if (_item && _item.id == _id)
{
return _item;
}
if (_item && typeof _item.item != 'undefined')
{
for(var i=0; i < _item.item.length; ++i)
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{
var found = this._find_in_item(_id, _item.item[i]);
if (found) return found;
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}
}
return null;
},
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/**
* Get node data by id
*
* @param {string} _id id of node
* @return {object} object with attributes id, im0-2, text, tooltip, ... as set via select_options or autoload url
*/
getNode: function(_id)
{
return this._find_in_item(_id, this.options.select_options);
},
/**
* Sets label of an item by id
*
* @param _id ID of the node
* @param _label label to set
* @return void
*/
setLabel: function(_id, _label) {
if(this.input == null) return null;
this.input.setItemText(_id, this._htmlencode(_label));
},
/**
* Sets a style for an item by id
*
* @param {string} _id ID of node
* @param {string} _style style to set
* @return void
*/
setStyle: function(_id, _style) {
if(this.input == null) return null;
this.input.setItemStyle(_id, _style);
},
/**
* getLabel, gets the Label of of an item by id
* @param _id ID of the node
* @return _label
*/
getLabel: function(_id) {
if(this.input == null) return null;
return this.input.getItemText(_id);
},
/**
* getSelectedNode, retrieves the full node of the selected Item
* @return string or null
*/
getSelectedNode: function() {
if(this.input == null) return null;
// no support for multiple selections
// as there is no get Method to return the full selected node, we use this
return this.options.multiple ? null : this.input._selected[0];
},
/**
* getTreeNodeOpenItems
*
* @param {string} _nodeID the nodeID where to start from (initial node)
* @param {string} mode the mode to run in: "forced" fakes the initial node openState to be open
* @return {object} structured array of node ids: array(message-ids)
*/
getTreeNodeOpenItems: function (_nodeID, mode) {
if(this.input == null) return null;
var z = this.input.getSubItems(_nodeID).split(this.input.dlmtr);
var oS;
var PoS;
var rv;
var returnValue = [_nodeID];
var modetorun = "none";
if (mode) { modetorun = mode; }
PoS = this.input.getOpenState(_nodeID);
if (modetorun == "forced") PoS = 1;
if (PoS == 1) {
for(var i=0;i<z.length;i++) {
oS = this.input.getOpenState(z[i]);
//alert(z[i]+' OpenState:'+oS);
if (oS == -1) { returnValue.push(z[i]); }
if (oS == 0) { returnValue.push(z[i]); }
if (oS == 1) {
//alert("got here")
rv = this.getTreeNodeOpenItems(z[i]);
//returnValue.concat(rv); // not working as expected; the following does
for(var j=0;j<rv.length;j++) {returnValue.push(rv[j]);}
}
}
}
//alert(returnValue.join('#,#'));
return returnValue;
},
/**
* Fetch user-data stored in specified node under given name
*
* User-data need to be stored in json as follows:
*
* {"id": "node-id", "im0": ..., "userdata": [{"name": "user-name", "content": "user-value"},...]}
*
* In above example getUserData("node-id", "user-name") will return "user-value"
*
* @param _nodeId
* @param _name
* @returns
*/
getUserData: function(_nodeId, _name)
{
if(this.input == null) return null;
return this.input.getUserData(_nodeId, _name);
},
/**
* Stores / updates user-data in specified node and name
*
* @param _nodeId
* @param _name
* @param _value
* @returns
*/
setUserData: function(_nodeId, _name, _value)
{
if(this.input == null) return null;
return this.input.setUserData(_nodeId, _name, _value);
},
/**
* Query nodes open state and optinal change it
*
* @param _id node-id
* @param _open specify to change true: open, false: close, everything else toggle
* @returns true if open, false if closed
*/
openItem: function(_id, _open)
{
if (this.input == null) return null;
var is_open = this.input.getOpenState(_id) == 1;
if (typeof _open != 'undefined' && is_open !== _open)
{
if(is_open)
{
this.input.closeItem(_id);
}
else
{
this.input.openItem(_id);
}
}
return is_open;
},
/**
* reSelectItem, reselects an item by id
* @param _id ID of the node
*/
reSelectItem: function(_id)
{
if (this.input == null) return null;
this.input.selectItem(_id,false,false);
},
/**
* Set images for a specific node or all new nodes (default)
*
* If images contain an extension eg. "leaf.gif" they are asumed to be in image path (/phpgwapi/templates/default/images/dhtmlxtree/).
* Otherwise they get searched via egw.image() in current app, phpgwapi or can be specified as "app/image".
*
* @param {string} _leaf leaf image, default "leaf.gif"
* @param {string} _closed closed folder image, default "folderClosed.gif"
* @param {string} _open opened folder image, default "folderOpen.gif"
* @param {string} _id if not given, standard images for new nodes are set
*/
setImages: function(_leaf, _closed, _open, _id)
{
var images = [_leaf || 'leaf.gif', _closed || 'folderClosed.gif', _open || 'folderOpen.gif'];
var image_extensions = /\.(gif|png|jpe?g)/i;
for(var i=0; i < 3; ++i)
{
var image = images[i];
if (!image.match(image_extensions))
{
images[i] = this._rel_url(this.egw().image(image) || image);
}
}
if (typeof _id == 'undefined')
{
this.input.setStdImages.apply(this.input, images);
}
else
{
images.unshift(_id);
this.input.setItemImage2.apply(this.input, images);
}
},
/**
* Set state of node incl. it's children
*
* @param {string} _id id of node
* @param {boolean|string} _state or "toggle" to toggle state
*/
setSubChecked: function(_id, _state)
{
if (_state === "toggle") _state = !this.input.isItemChecked(_id);
this.input.setSubChecked(_id, _state);
},
/**
* Get URL relative to image_path option
*
* Both URL start with EGroupware webserverUrl and image_path gets allways appended to images by tree.
*
* @param {string} _url
* @return {string} relativ url
*/
_rel_url: function(_url)
{
var path_parts = this.options.image_path.split(this.egw().webserverUrl);
path_parts = path_parts[1].split('/');
var url_parts = _url.split(this.egw().webserverUrl);
url_parts = url_parts[1].split('/');
for(var i=0; i < path_parts.length; ++i)
{
if (path_parts[i] != url_parts[i])
{
while(++i < path_parts.length) url_parts.unshift('..');
break;
}
url_parts.shift();
}
return url_parts.join('/');
2012-03-07 01:30:47 +01:00
}
});
et2_register_widget(et2_tree, ["tree","tree-cat"]);