mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-24 15:48:55 +01:00
773 lines
18 KiB
JavaScript
773 lines
18 KiB
JavaScript
/**
|
|
* eGroupWare eTemplate2 - JS Widget base class
|
|
*
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @package etemplate
|
|
* @subpackage api
|
|
* @link http://www.egroupware.org
|
|
* @author Andreas Stöckel
|
|
* @copyright Stylite 2011
|
|
* @version $Id$
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
/*egw:uses
|
|
jsapi.egw;
|
|
et2_core_xml;
|
|
et2_core_common;
|
|
et2_core_inheritance;
|
|
et2_core_arrayMgr;
|
|
*/
|
|
|
|
/**
|
|
* The registry contains all XML tag names and the corresponding widget
|
|
* constructor.
|
|
*/
|
|
var et2_registry = {};
|
|
|
|
/**
|
|
* Registers the widget class defined by the given constructor and associates it
|
|
* with the types in the _types array.
|
|
*/
|
|
function et2_register_widget(_constructor, _types)
|
|
{
|
|
// Iterate over all given types and register those
|
|
for (var i = 0; i < _types.length; i++)
|
|
{
|
|
var type = _types[i].toLowerCase();
|
|
|
|
// Check whether a widget has already been registered for one of the
|
|
// types.
|
|
if (et2_registry[type])
|
|
{
|
|
et2_debug("warn", "Widget class registered for " + type +
|
|
" will be overwritten.");
|
|
}
|
|
|
|
et2_registry[type] = _constructor;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a widget registered for the given tag-name. If "readonly" is listed
|
|
* inside the attributes, et2_createWidget will try to use the "_ro" type of the
|
|
* widget.
|
|
*
|
|
* @param _name is the name of the widget with which it is registered. If the
|
|
* widget is not found, an et2_placeholder will be created.
|
|
* @param _attrs is an associative array with attributes. If not passed, it will
|
|
* default to true.
|
|
* @param _parent is the parent to which the element will be attached. If _parent
|
|
* is not passed, it will default to null. Then you have to attach the element
|
|
* to a parent using the addChild or insertChild method.
|
|
*/
|
|
function et2_createWidget(_name, _attrs, _parent)
|
|
{
|
|
if (typeof _attrs == "undefined")
|
|
{
|
|
_attrs = {};
|
|
}
|
|
|
|
if (typeof _parent == "undefined")
|
|
{
|
|
_parent = null;
|
|
}
|
|
|
|
// Parse the "readonly" and "type" flag for this element here, as they
|
|
// determine which constructor is used
|
|
var nodeName = _attrs["type"] = _name;
|
|
var readonly = _attrs["readonly"] =
|
|
typeof _attrs["readonly"] == "undefined" ? false : _attrs["readonly"];
|
|
|
|
// Get the constructor - if the widget is readonly, use the special "_ro"
|
|
// constructor if it is available
|
|
var constructor = typeof et2_registry[nodeName] == "undefined" ?
|
|
et2_placeholder : et2_registry[nodeName];
|
|
if (readonly && typeof et2_registry[nodeName + "_ro"] != "undefined")
|
|
{
|
|
constructor = et2_registry[nodeName + "_ro"];
|
|
}
|
|
|
|
// Do an sanity check for the attributes
|
|
constructor.prototype.generateAttributeSet(_attrs);
|
|
|
|
// Create the new widget and return it
|
|
return new constructor(_parent, _attrs);
|
|
}
|
|
|
|
/**
|
|
* The et2 widget base class.
|
|
*/
|
|
var et2_widget = Class.extend({
|
|
|
|
attributes: {
|
|
"id": {
|
|
"name": "ID",
|
|
"type": "string",
|
|
"description": "Unique identifier of the widget"
|
|
},
|
|
|
|
"no_lang": {
|
|
"name": "No translation",
|
|
"type": "boolean",
|
|
"default": false,
|
|
"description": "If true, no translations are made for this widget"
|
|
},
|
|
|
|
/**
|
|
* Ignore the "span" property by default - it is read by the grid and
|
|
* other widgets.
|
|
*/
|
|
"span": {
|
|
"ignore": true
|
|
},
|
|
|
|
/**
|
|
* Ignore the "type" tag - it is read by the "createElementFromNode"
|
|
* function and passed as second parameter of the widget constructor
|
|
*/
|
|
"type": {
|
|
"ignore": true
|
|
},
|
|
|
|
/**
|
|
* Ignore the readonly tag by default - its also read by the
|
|
* "createElementFromNode" function.
|
|
*/
|
|
"readonly": {
|
|
"ignore": true
|
|
}
|
|
},
|
|
|
|
// Set the legacyOptions array to the names of the properties the "options"
|
|
// attribute defines.
|
|
legacyOptions: [],
|
|
|
|
/**
|
|
* Set this variable to true if this widget can have namespaces
|
|
*/
|
|
createNamespace: false,
|
|
|
|
/**
|
|
* The init function is the constructor of the widget. When deriving new
|
|
* classes from the widget base class, always call this constructor unless
|
|
* you know what you're doing.
|
|
*
|
|
* @param _parent is the parent object from the XML tree which contains this
|
|
* object. The default constructor always adds the new instance to the
|
|
* children list of the given parent object. _parent may be NULL.
|
|
* @param _attrs is an associative array of attributes.
|
|
*/
|
|
init: function(_parent, _attrs) {
|
|
|
|
// Check whether all attributes are available
|
|
if (typeof _parent == "undefined")
|
|
{
|
|
_parent = null;
|
|
}
|
|
|
|
if (typeof _attrs == "undefined")
|
|
{
|
|
_attrs = {};
|
|
}
|
|
|
|
// Initialize all important parameters
|
|
this._mgrs = {};
|
|
this._inst = null;
|
|
this._children = [];
|
|
this._type = _attrs["type"];
|
|
this.id = _attrs["id"];
|
|
|
|
// Add this widget to the given parent widget
|
|
this._parent = _parent;
|
|
if (_parent != null)
|
|
{
|
|
this._parent.addChild(this);
|
|
}
|
|
|
|
// The supported widget classes array defines a whitelist for all widget
|
|
// classes or interfaces child widgets have to support.
|
|
this.supportedWidgetClasses = [et2_widget];
|
|
|
|
if (_attrs["id"])
|
|
{
|
|
// Create a namespace for this object
|
|
if (this.createNamespace)
|
|
{
|
|
this.checkCreateNamespace();
|
|
}
|
|
}
|
|
|
|
// Add all attributes hidden in the content arrays to the attributes
|
|
// parameter
|
|
this.transformAttributes(_attrs);
|
|
|
|
// Create a local copy of the options object
|
|
this.options = et2_cloneObject(_attrs);
|
|
},
|
|
|
|
/**
|
|
* The destroy function destroys all children of the widget, removes itself
|
|
* from the parents children list.
|
|
* In all classes derrived from et2_widget ALWAYS override the destroy
|
|
* function and remove ALL references to other objects. Also remember to
|
|
* unbind ANY event this widget created and to remove all DOM-Nodes it
|
|
* created.
|
|
*/
|
|
destroy: function() {
|
|
|
|
// Call the destructor of all children
|
|
for (var i = this._children.length - 1; i >= 0; i--)
|
|
{
|
|
this._children[i].free();
|
|
}
|
|
|
|
// Remove this element from the parent
|
|
if (this._parent !== null)
|
|
{
|
|
this._parent.removeChild(this);
|
|
}
|
|
|
|
// Delete all references to other objects
|
|
this._children = [];
|
|
this._parent = null;
|
|
this._mgrs = {};
|
|
},
|
|
|
|
/**
|
|
* Creates a copy of this widget. The parameters given are passed to the
|
|
* constructor of the copied object. If the parameters are omitted, _parent
|
|
* is defaulted to null
|
|
*/
|
|
clone: function(_parent) {
|
|
|
|
// Default _parent to null
|
|
if (typeof _parent == "undefined")
|
|
{
|
|
_parent = null;
|
|
}
|
|
|
|
// Create the copy
|
|
var copy = new (this.constructor)(_parent, this.options);
|
|
|
|
// Assign this element to the copy
|
|
copy.assign(this);
|
|
|
|
return copy;
|
|
},
|
|
|
|
assign: function(_obj) {
|
|
if (typeof _obj._children == "undefined")
|
|
{
|
|
et2_debug("log", "Foo!");
|
|
}
|
|
|
|
// Create a clone of all child elements of the given object
|
|
for (var i = 0; i < _obj._children.length; i++)
|
|
{
|
|
_obj._children[i].clone(this);
|
|
}
|
|
|
|
// Copy a reference to the content array manager
|
|
this.setArrayMgrs(_obj.mgrs);
|
|
},
|
|
|
|
/**
|
|
* Returns the parent widget of this widget
|
|
*/
|
|
getParent: function() {
|
|
return this._parent;
|
|
},
|
|
|
|
/**
|
|
* Returns the list of children of this widget.
|
|
*/
|
|
getChildren: function() {
|
|
return this._children;
|
|
},
|
|
|
|
/**
|
|
* Returns the base widget
|
|
*/
|
|
getRoot: function() {
|
|
if (this._parent != null)
|
|
{
|
|
return this._parent.getRoot();
|
|
}
|
|
else
|
|
{
|
|
return this;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Inserts an child at the end of the list.
|
|
*
|
|
* @param _node is the node which should be added. It has to be an instance
|
|
* of et2_widget
|
|
*/
|
|
addChild: function(_node) {
|
|
this.insertChild(_node, this._children.length);
|
|
},
|
|
|
|
/**
|
|
* Inserts a child at the given index.
|
|
*
|
|
* @param _node is the node which should be added. It has to be an instance
|
|
* of et2_widget
|
|
* @param _idx is the position at which the element should be added.
|
|
*/
|
|
insertChild: function(_node, _idx) {
|
|
// Check whether the node is one of the supported widget classes.
|
|
if (this.isOfSupportedWidgetClass(_node))
|
|
{
|
|
// Remove the node from its original parent
|
|
if (_node._parent)
|
|
{
|
|
_node._parent.removeChild(_node);
|
|
}
|
|
|
|
_node._parent = this;
|
|
this._children.splice(_idx, 0, _node);
|
|
}
|
|
else
|
|
{
|
|
et2_debug("error", this, "Widget is not supported by this widget class", _node);
|
|
// throw("Widget is not supported by this widget class!");
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Removes the child but does not destroy it.
|
|
*/
|
|
removeChild: function(_node) {
|
|
// Retrieve the child from the child list
|
|
var idx = this._children.indexOf(_node);
|
|
|
|
if (idx >= 0)
|
|
{
|
|
// This element is no longer parent of the child
|
|
_node._parent = null;
|
|
|
|
this._children.splice(idx, 1);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Searches an element by id in the tree, descending into the child levels.
|
|
*
|
|
* @param _id is the id you're searching for
|
|
*/
|
|
getWidgetById: function(_id) {
|
|
if (this.id == _id)
|
|
{
|
|
return this;
|
|
}
|
|
|
|
for (var i = 0; i < this._children.length; i++)
|
|
{
|
|
var elem = this._children[i].getWidgetById(_id);
|
|
|
|
if (elem != null)
|
|
{
|
|
return elem;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* Function which allows iterating over the complete widget tree.
|
|
*
|
|
* @param _callback is the function which should be called for each widget
|
|
* @param _context is the context in which the function should be executed
|
|
* @param _type is an optional parameter which specifies a class/interface
|
|
* the elements have to be instanceOf.
|
|
*/
|
|
iterateOver: function(_callback, _context, _type) {
|
|
if (typeof _type == "undefined")
|
|
{
|
|
_type = et2_widget;
|
|
}
|
|
|
|
if (this.isInTree() && this.instanceOf(_type))
|
|
{
|
|
_callback.call(_context, this);
|
|
}
|
|
|
|
for (var i = 0; i < this._children.length; i++)
|
|
{
|
|
this._children[i].iterateOver(_callback, _context, _type);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns true if the widget currently resides in the visible part of the
|
|
* widget tree. E.g. Templates which have been cloned are not in the visible
|
|
* part of the widget tree.
|
|
*
|
|
* @param _vis can be used by widgets overwriting this function - simply
|
|
* write
|
|
* return this._super(inTree);
|
|
* when calling this function the _vis parameter does not have to be supplied.
|
|
*/
|
|
isInTree: function(_sender, _vis) {
|
|
if (typeof _vis == "undefined")
|
|
{
|
|
_vis = true;
|
|
}
|
|
|
|
if (this._parent)
|
|
{
|
|
return _vis && this._parent.isInTree(this);
|
|
}
|
|
|
|
return _vis;
|
|
},
|
|
|
|
isOfSupportedWidgetClass: function(_obj)
|
|
{
|
|
for (var i = 0; i < this.supportedWidgetClasses.length; i++)
|
|
{
|
|
if (_obj.instanceOf(this.supportedWidgetClasses[i]))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* The parseXMLAttrs function takes an XML DOM attributes object
|
|
* and adds the given attributes to the _target associative array. This
|
|
* function also parses the legacyOptions.
|
|
*
|
|
* @param _attrsObj is the XML DOM attributes object
|
|
* @param _target is the object to which the attributes should be written.
|
|
*/
|
|
parseXMLAttrs: function(_attrsObj, _target, _proto) {
|
|
|
|
// Check whether the attributes object is really existing, if not abort
|
|
if (typeof _attrsObj == "undefined")
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Iterate over the given attributes and parse them
|
|
for (var i = 0; i < _attrsObj.length; i++)
|
|
{
|
|
var attrName = _attrsObj[i].name;
|
|
var attrValue = _attrsObj[i].value;
|
|
|
|
// Special handling for the legacy options
|
|
if (attrName == "options")
|
|
{
|
|
// Parse the legacy options
|
|
var splitted = et2_csvSplit(attrValue);
|
|
|
|
for (var j = 0; j < splitted.length && j < _proto.legacyOptions.length; j++)
|
|
{
|
|
_target[_proto.legacyOptions[j]] = splitted[j];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var mgr = this.getArrayMgr("content");
|
|
if (mgr != null && typeof _proto.attributes[attrName] != "undefined")
|
|
{
|
|
var attr = _proto.attributes[attrName];
|
|
|
|
// If the attribute is marked as boolean, parse the
|
|
// expression as bool expression.
|
|
if (attr.type == "boolean")
|
|
{
|
|
attrValue = mgr.parseBoolExpression(attrValue);
|
|
}
|
|
else
|
|
{
|
|
attrValue = mgr.expandName(attrValue);
|
|
}
|
|
}
|
|
|
|
// Set the attribute
|
|
_target[attrName] = attrValue;
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Apply the "modifications" to the element and translate attributes marked
|
|
* with "translate: true"
|
|
*/
|
|
transformAttributes: function(_attrs) {
|
|
|
|
// Apply the content of the modifications array
|
|
if (this.id)
|
|
{
|
|
var data = this.getArrayMgr("modifications").getValueForID(this.id);
|
|
if (data instanceof Object)
|
|
{
|
|
for (var key in data)
|
|
{
|
|
if (!(data[key] instanceof Object))
|
|
{
|
|
_attrs[key] = data[key];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Translate the attributes
|
|
for (var key in _attrs)
|
|
{
|
|
if (_attrs[key] && typeof this.attributes[key] != "undefined")
|
|
{
|
|
if (this.attributes[key].translate === true ||
|
|
(this.attributes[key].translate === "!no_lang" && !_attrs["no_lang"]))
|
|
_attrs[key] = egw.lang(_attrs[key]);
|
|
}
|
|
}
|
|
},
|
|
|
|
createElementFromNode: function(_node) {
|
|
var attributes = {};
|
|
|
|
// Parse the "readonly" and "type" flag for this element here, as they
|
|
// determine which constructor is used
|
|
var _nodeName = attributes["type"] = _node.getAttribute("type") ?
|
|
_node.getAttribute("type") : _node.nodeName.toLowerCase();
|
|
var readonly = attributes["readonly"] =
|
|
this.getArrayMgr("readonlys").isReadOnly(
|
|
_node.getAttribute("id"), _node.getAttribute("readonly"),
|
|
this.readonly);
|
|
|
|
// Get the constructor - if the widget is readonly, use the special "_ro"
|
|
// constructor if it is available
|
|
var constructor = typeof et2_registry[_nodeName] == "undefined" ?
|
|
et2_placeholder : et2_registry[_nodeName];
|
|
if (readonly && typeof et2_registry[_nodeName + "_ro"] != "undefined")
|
|
{
|
|
constructor = et2_registry[_nodeName + "_ro"];
|
|
}
|
|
|
|
// Parse the attributes from the given XML attributes object
|
|
this.parseXMLAttrs(_node.attributes, attributes, constructor.prototype);
|
|
|
|
// Do an sanity check for the attributes
|
|
constructor.prototype.generateAttributeSet(attributes);
|
|
|
|
// Creates the new widget, passes this widget as an instance and
|
|
// passes the widgetType. Then it goes on loading the XML for it.
|
|
var widget = new constructor(this, attributes);
|
|
|
|
// Load the widget itself from XML
|
|
widget.loadFromXML(_node);
|
|
|
|
return widget;
|
|
},
|
|
|
|
/**
|
|
* Loads the widget tree from an XML node
|
|
*/
|
|
loadFromXML: function(_node) {
|
|
// Load the child nodes.
|
|
for (var i = 0; i < _node.childNodes.length; i++)
|
|
{
|
|
var node = _node.childNodes[i];
|
|
var widgetType = node.nodeName.toLowerCase();
|
|
|
|
if (widgetType == "#comment")
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (widgetType == "#text")
|
|
{
|
|
if (node.data.replace(/^\s+|\s+$/g, ''))
|
|
{
|
|
this.loadContent(node.data);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Create the new element
|
|
this.createElementFromNode(node);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Called whenever textNodes are loaded from the XML tree
|
|
*/
|
|
loadContent: function(_content) {
|
|
},
|
|
|
|
/**
|
|
* Called when loading the widget (sub-tree) is finished. First when this
|
|
* function is called, the DOM-Tree is created. loadingFinished is
|
|
* recursively called for all child elements. Do not directly override this
|
|
* function but the doLoadingFinished function which is executed before
|
|
* descending deeper into the DOM-Tree
|
|
*/
|
|
loadingFinished: function() {
|
|
// Call all availble setters
|
|
this.initAttributes(this.options);
|
|
|
|
if (this.doLoadingFinished())
|
|
{
|
|
// Descend recursively into the tree
|
|
for (var i = 0; i < this._children.length; i++)
|
|
{
|
|
this._children[i].loadingFinished();
|
|
}
|
|
}
|
|
},
|
|
|
|
doLoadingFinished: function() {
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Sets all array manager objects - this function can be used to set the
|
|
* root array managers of the container object.
|
|
*/
|
|
setArrayMgrs: function(_mgrs) {
|
|
this._mgrs = et2_cloneObject(_mgrs);
|
|
},
|
|
|
|
/**
|
|
* Returns an associative array containing the top-most array managers.
|
|
*
|
|
* @param _mgrs is used internally and should not be supplied.
|
|
*/
|
|
getArrayMgrs: function(_mgrs) {
|
|
if (typeof _mgrs == "undefined")
|
|
{
|
|
_mgrs = {};
|
|
}
|
|
|
|
// Add all managers of this object to the result, if they have not already
|
|
// been set in the result
|
|
for (var key in this._mgrs)
|
|
{
|
|
if (typeof _mgrs[key] == "undefined")
|
|
{
|
|
_mgrs[key] = this._mgrs[key];
|
|
}
|
|
}
|
|
|
|
// Recursively applies this function to the parent widget
|
|
if (this._parent)
|
|
{
|
|
this._parent.getArrayMgrs(_mgrs);
|
|
}
|
|
|
|
return _mgrs;
|
|
},
|
|
|
|
/**
|
|
* Sets the array manager for the given part
|
|
*/
|
|
setArrayMgr: function(_part, _mgr) {
|
|
this._mgrs[_part] = _mgr;
|
|
},
|
|
|
|
/**
|
|
* Returns the array manager object for the given part
|
|
*/
|
|
getArrayMgr: function(_part) {
|
|
if (typeof this._mgrs[_part] != "undefined")
|
|
{
|
|
return this._mgrs[_part];
|
|
}
|
|
else if (this._parent)
|
|
{
|
|
return this._parent.getArrayMgr(_part);
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* Checks whether a namespace exists for this element in the content array.
|
|
* If yes, an own perspective of the content array is created. If not, the
|
|
* parent content manager is used.
|
|
*/
|
|
checkCreateNamespace: function() {
|
|
// Get the content manager
|
|
var mgrs = this.getArrayMgrs();
|
|
|
|
for (var key in mgrs)
|
|
{
|
|
var mgr = mgrs[key];
|
|
|
|
// Get the original content manager if we have already created a
|
|
// perspective for this node
|
|
if (typeof this._mgrs[key] != "undefined" && mgr.perspectiveData.owner == this)
|
|
{
|
|
mgr = mgr.parentMgr;
|
|
}
|
|
|
|
// Check whether the manager has a namespace for the id of this object
|
|
if (mgr.getEntry(this.id) instanceof Object)
|
|
{
|
|
// The content manager has an own node for this object, so
|
|
// create an own perspective.
|
|
this._mgrs[key] = mgr.openPerspective(this, this.id);
|
|
}
|
|
else
|
|
{
|
|
// The current content manager does not have an own namespace for
|
|
// this element, so use the content manager of the parent.
|
|
delete(this._mgrs[key]);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Sets the instance manager object (of type etemplate2, see etemplate2.js)
|
|
*/
|
|
setInstanceManager: function(_inst) {
|
|
this._inst = _inst;
|
|
},
|
|
|
|
/**
|
|
* Returns the instance manager
|
|
*/
|
|
getInstanceManager: function() {
|
|
if (this._inst != null)
|
|
{
|
|
return this._inst;
|
|
}
|
|
else if (this._parent)
|
|
{
|
|
return this._parent.getInstanceManager();
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* Returns the application for the template the widget is in.
|
|
* If a sub-template is used, this may be different from the current app.
|
|
*/
|
|
getTemplateApp: function() {
|
|
if(this._template_application)
|
|
{
|
|
return this._template_application;
|
|
}
|
|
else if(this._type == 'template' && this.id)
|
|
{
|
|
var parts = this.id.split(".",2);
|
|
return parts[0];
|
|
} else if (this.getParent()) {
|
|
this._template_application = this.getParent().getTemplateApp();
|
|
return this._template_application;
|
|
}
|
|
return null;
|
|
}
|
|
});
|
|
|
|
|