egroupware/api/js/etemplate/widget_browser.js

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/**
* EGroupware eTemplate2 widget browser
* View & play with et2 widgets - javascript
*
* @link http://www.egroupware.org
* @author Nathan Gray
* @author Hadi Nategh
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* @copyright 2013 Nathan Gray
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage tools
* @version $Id$
*/
/*egw:uses
etemplate2;
*/
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/**
* widget_browser shows a list of widgets, and allows you to view them one at a time.
* You can view and edit defined properties to see the effect.
*/
function widget_browser(list_div, widget_div)
{
// Initialize etemplate2
this.et2 = new etemplate2(widget_div, "etemplate::ajax_process_content");
// Normally this would be passed from app
var _data = {};
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// Create the basic widget container and attach it to the DOM
// Not really needed, but let's be consitent with et2
this.et2.widgetContainer = new et2_container(null);
this.et2.widgetContainer.setApiInstance(egw('etemplate', egw.elemWindow(this.et2.DOMContainer)));
this.et2.widgetContainer.setInstanceManager(this.et2);
this.et2.widgetContainer.setParentDOMNode(this.et2.DOMContainer);
this.et2.widgetContainer.setArrayMgrs(this.et2._createArrayManagers(_data));
// Set up UI
this.list_div = $j(list_div);
this.widget_div = $j(widget_div);
this.attribute_list = null;
// Create and popuplate the widget list
this._init_list();
// Build DTD
this._init_dtd();
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}
/**
* Read the widget registry and create a list.
* The user can pick a widget, and we'll instanciate it.
*/
widget_browser.prototype._init_list = function()
{
var self = this;
// Create list
var list = $j(document.createElement('ul'))
.attr('id', 'widgets')
.click(function(e) {self.select_widget(e);})
.appendTo(this.list_div);
// Sort the registry
var types = [];
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for(var type in et2_registry)
{
types.push(type);
}
types.sort();
for(var i = 0; i < types.length; i++)
{
list.append('<li>'+types[i]+'</li>');
this.dump_attributes(types[i]);
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}
// Build attribute table
attribute_table = $j(document.createElement('table'));
attribute_table.append('<thead class = "ui-widget-header"><td>'+egw().lang('Name')+"</td><td>"+egw().lang("Data type") +
"</td><td>"+egw().lang("Value") + "</td></thead>");
this.attribute_list = $j(document.createElement('tbody'))
.appendTo(attribute_table);
this.list_div.append(
$j(document.createElement('div'))
.attr('id', 'widget_attributes')
.append(attribute_table)
);
};
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widget_browser.prototype.dump_attributes = function(_type)
{
console.log(_type);
try {
var attrs = {};
window.wb_widget = this.widget = et2_createWidget(_type, attrs, this.et2.widgetContainer);
this.widget.loadingFinished();
if(this.widget !== null && this.widget.attributes)
{
for(var attr in this.widget.attributes)
{
console.log(attr, this.widget.attributes[attr]);
}
}
}
catch(e) {
console.log('*** '+_type+' error '+(typeof e.message != 'undefined' ? e.message : e));
}
try {
if (this.widget)
{
this.widget.destroy();
delete this.widget;
}
}
catch(e) {
}
};
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/**
* User selected a widget from the list
*
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* Create an instance of the widget, get its attributes, and display it.
*/
widget_browser.prototype.select_widget = function(e,f)
{
// UI prettyness - clear selected
$j(e.target).parent().children().removeClass("ui-state-active");
// Clear previous widget
if(this.widget)
{
this.et2.widgetContainer.removeChild(this.widget);
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this.widget.free();
this.widget = null;
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}
// Get the type of widget
var type = $j(e.target).text();
if(!type || e.target.nodeName != 'LI')
{
return;
}
// UI prettyness - show item as selected
$j(e.target).addClass('ui-state-active');
// Widget attributes
var attrs = {};
window.wb_widget = this.widget = et2_createWidget(type, attrs, this.et2.widgetContainer);
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this.widget.loadingFinished();
// Attribute list
this.attribute_list.empty();
if(this.widget !== null && this.widget.attributes)
{
for(var attr in this.widget.attributes)
{
if(this.widget.attributes[attr].ignore) continue;
this.create_attribute(attr, this.widget.attributes[attr])
.appendTo(this.attribute_list);
}
}
};
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/**
* Create the UI (DOM) elements for a single widget attribute
*
* @param name Name of the attribute
* @param settings attribute attributes (Human name, description, etc)
*/
widget_browser.prototype.create_attribute = function(name, settings)
{
var set_function_name = "set_"+name;
var row = $j(document.createElement("tr"))
.addClass(typeof this.widget[set_function_name] == 'function' ? 'ui-state-default':'ui-state-disabled')
// Human Name
.append($j(document.createElement('td'))
.text(settings.name)
)
// Data type
.append($j(document.createElement('td'))
.text(settings.type)
);
// Add attribute name & description as a tooltip
if(settings.description)
{
egw().tooltipBind(row,settings.description);
}
// Value
var value = $j(document.createElement('td')).appendTo(row);
if(row.hasClass('ui-state-disabled'))
{
// No setter - just use text
value.text(this.widget.options[name]);
return row;
}
// Setter function - maybe editable?
var self = this;
var input = null;
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switch(settings.type)
{
case 'string':
input = $j('<input/>')
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.change(function(e) {
self.widget[set_function_name].apply(self.widget, [$j(e.target).val()]);
});
input.val(this.widget.options[name]);
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break;
case 'boolean':
input = $j('<input type="checkbox"/>')
.attr("checked", this.widget.options[name])
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.change(function(e) {
self.widget[set_function_name].apply(self.widget, [e.target.checked]);
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});
break;
default:
value.text(this.widget.options[name]);
return row;
}
input.appendTo(value);
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return row;
};
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/**
* Initialise the DTD generator
*/
widget_browser.prototype._init_dtd = function ()
{
//Contains all widgets
this.widgets = [];
//Contains not readonly widgets
this.dtd_widgets = [];
//Contians readonly widgets
this.dtd_widgets_ro = [];
// Contains the whole DTD string
this.dtd = "";
var self = this;
// Create DTD Generator button and bind click handler on it
var dtd_btn = $j(document.createElement('button'))
.attr({id:'dtd_btn', title:'Generates Document Type Definition (DTD) for all widgets'})
.click(function(){
self._dtd_builder();
})
.addClass('dtd_btn')
.appendTo('body');
dtd_btn.text('DTD Generator');
}
/**
* Iterates over all et2_widget to build DTD tags
* and display them as string
*
*/
widget_browser.prototype._dtd_builder = function()
{
var dtdContentW = "";
var i = 0;
for (var widget_type in et2_registry)
{
var attrs = {};
// creating a dialog popups an empty dialog,
// which we don't want therefore
// we eliminate dialog tag from dtd ATM.
if (widget_type.match(/dialog/,'i')) continue;
if (!widget_type.match(/nextmatch/,'i'))
{
this.widgets[i] = et2_createWidget(widget_type ,attrs, this.et2.widgetContainer)
if (widget_type.match(/_ro/,'i'))
{
this.dtd_widgets_ro.push( widget_type.replace('_ro',''));
}
else
{
this.dtd_widgets.push(widget_type);
dtdContentW += this._dtd_widgets(widget_type, this.widgets[i])
}
i++;
}
}
// DTD Final Content
this.dtd = this._dtd_header() + dtdContentW;
//Display DTD resault and UI to copy/download them
et2_createWidget("dialog", {
callback: function() {},
title: egw.lang('DTD Result'),
buttons:et2_dialog.BUTTONS_OK,
value: {
content: {
value: this.dtd,
message: egw.lang('DTD Content')
}
},
template: egw.webserverUrl+'/etemplate/templates/default/dtd.xet',
modal:true,
resizable:false
});
}
/**
* Builds some specific header DTD tags (e.g. ENTITY)
*
* @returns {String} returns dtd header tags as string
*/
widget_browser.prototype._dtd_header = function ()
{
var dtd = '';
dtd = '<!ENTITY % Widgets "' + this.dtd_widgets.join('|') + '">\r\n';
dtd += '<!ELEMENT overlay (%Widgets;)*>\r\n';
return dtd;
}
/**
* Builds DTD ELEMENTS and teir ATTRLIST for given widget
*
* @param {string} _type widget type
* @param {object} _widget widget object
* @returns {String} returns generated dtd tags in string
*/
widget_browser.prototype._dtd_widgets = function (_type, _widget)
{
var dtd = '';
switch (_type)
{
// Special handling for menulist widget as it has a complicated structure
case 'menulist':
dtd = '<!ELEMENT menulist (menupopup)>\r\n';
break;
// Special handling for grid widget as it has a complicated structure
case 'grid':
dtd += '<!ELEMENT grid (columns,rows)>\r\n';
dtd += '<!ELEMENT columns (column)*>\r\n\
<!ELEMENT column EMPTY >\n\
<!ATTLIST column\n\
disabled CDATA #IMPLIED\n\
class CDATA #IMPLIED\n\
width CDATA #IMPLIED>\n\
<!ELEMENT rows (row)*>\n\
<!ELEMENT row (%Widgets;)>\n\
<!ATTLIST row\n\
class CDATA #IMPLIED\n\
height CDATA #IMPLIED\n\
valign CDATA #IMPLIED\n\
disabled CDATA #IMPLIED\n\
part CDATA #IMPLIED\n\
>\r\n';
break;
// Special handling for tabbox widget as it has a complicated structure
case 'tabbox':
dtd += '<!ELEMENT tabbox (tabs,tabpanels)>\r\n';
dtd += '<!ELEMENT tabs (tab)>\r\n';
dtd += '<!ELEMENT tabpanels (template)>\r\n';
break;
// Widget which can be a parent
case 'vbox':
case 'hbox':
case 'box':
case 'groupbox':
case 'template':
dtd = '<!ELEMENT '+ _type + ' (%Widgets;)*>\r\n';
break;
// Other widgets which only can be used as child
default:
dtd = '<!ELEMENT '+ _type + ' EMPTY>\r\n';
}
dtd +='<!ATTLIST ' + _type + '\r\n';
for(var attr in _widget.attributes)
{
//DTD attribute helper object
var dtdAttrObj = {attrType:'CDATA',attrVal:'', attrReq:' #IMPLIED'};
//if(_widget.attributes[attr].ignore) continue;
switch (_widget.attributes[attr].type)
{
case 'boolean':
dtdAttrObj.attrType = ' (true|false)';
dtdAttrObj.attrVal = ' "' + _widget.attributes[attr].default + '"';
dtdAttrObj.attrReq = '';
break;
default:
dtdAttrObj.attrType = ' CDATA';
if (_widget.attributes[attr].default !="" &&
typeof _widget.attributes[attr].default != 'undefined' &&
!jQuery.isEmptyObject(_widget.attributes[attr].default))
{
dtdAttrObj.attrReq = '';
dtdAttrObj.attrVal = ' "' + _widget.attributes[attr].default + '"';
}
else
{
dtdAttrObj.attrVal = "";
}
}
dtd += attr + dtdAttrObj.attrType +
(dtdAttrObj.attrVal !=""?dtdAttrObj.attrVal:'') +
dtdAttrObj.attrReq +'\r\n';
}
dtd += '>\r\n';
return dtd;
}
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egw_LAB.wait(function() {
var wb = new widget_browser(
document.getElementById("widget_list"),
document.getElementById("widget_container")
);
});