egroupware_official/etemplate/js/et2_widget_tabs.js

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/**
* EGroupware eTemplate2 - JS Tabs object
*
* @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;
jquery.jquery;
et2_core_widget;
*/
/**
* Class which implements the tabbox-tag
*
* @augments et2_DOMWidget
*/
var et2_tabbox = et2_valueWidget.extend([et2_IInput],
{
attributes: {
'tabs': {
'name': 'Tabs',
'default': et2_no_init,
'description': "Array of [extra] tabs. Each tab needs {label:..., template:...}. Additional optional keys are hidden and id, for access into content array"
},
'add_tabs': {
'name': 'Add tabs',
'default': false,
'description': 'Set to true if tabs should be added to tabs from read from template, default false if not'
}
},
/**
* Currently selected tab
*/
selected_index: 0,
/**
* Construtor
*
* @memberOf et2_tabbox
*/
init: function() {
// Create the outer tabbox container
this.container = $j(document.createElement("div"))
.addClass("et2_tabbox");
// Create the upper container for the tab flags
this.flagContainer = $j(document.createElement("div"))
.addClass("et2_tabheader")
.appendTo(this.container);
// Create the lower tab container
this.tabContainer = $j(document.createElement("div"))
.addClass("et2_tabs")
.appendTo(this.container);
this._super.apply(this, arguments);
this.tabData = [];
},
destroy: function() {
this._super.apply(this, arguments);
this.container = null;
this.flagContainer = null;
this.tabData = [];
},
_readTabs: function(tabData, tabs) {
var selected = "";
this.selected_index = 0;
var hidden = {};
if (this.id)
{
// Set the value for this element
var contentMgr = this.getArrayMgr("content");
if (contentMgr != null) {
var val = contentMgr.getEntry(this.id);
if (val !== null)
{
selected = val;
}
}
contentMgr = this.getArrayMgr("readonlys");
if (contentMgr != null) {
var val = contentMgr.getEntry(this.id);
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if (val !== null && typeof val !== 'undefined')
{
hidden = val;
}
}
}
var i = 0;
et2_filteredNodeIterator(tabs, function(node, nodeName) {
if (nodeName == "tab")
{
var index_name = et2_readAttrWithDefault(node, "id");
var hide = false;
if(index_name) {
if(selected == index_name) this.selected_index = i;
if(hidden[index_name]) {
hide = true;
}
}
tabData.push({
"id": index_name,
"label": this.egw().lang(et2_readAttrWithDefault(node, "label", "Tab")),
"widget": null,
"widget_options": {},
"contentDiv": null,
"flagDiv": null,
"hidden": hide,
"XMLNode": null,
"promise": null
});
}
else
{
throw("Error while parsing: Invalid tag '" + nodeName +
"' in tabs tag");
}
i++;
}, this);
},
_readTabPanels: function(tabData, tabpanels) {
var i = 0;
et2_filteredNodeIterator(tabpanels, function(node, nodeName) {
if (i < tabData.length)
{
// Store node for later evaluation
tabData[i].XMLNode = node;
}
else
{
throw("Error while reading tabpanels tag, too many widgets!");
}
i++;
}, this);
},
loadFromXML: function(_node) {
// Get the tabs and tabpanels tags
var tabsElems = et2_directChildrenByTagName(_node, "tabs");
var tabpanelsElems = et2_directChildrenByTagName(_node, "tabpanels");
var tabData = [];
// Check for a parent height, we'll apply it to tab panels
var height = et2_readAttrWithDefault(_node.parentNode, "height",null);
if(height)
{
this.tabContainer.css("height", height);
}
// if no tabs set or they should be added to tabs from xml
if (!this.options.tabs || this.options.add_tabs)
{
if (tabsElems.length == 1 && tabpanelsElems.length == 1)
{
var tabs = tabsElems[0];
var tabpanels = tabpanelsElems[0];
// Parse the "tabs" tag
this._readTabs(tabData, tabs);
// Read and create the widgets defined in the "tabpanels"
this._readTabPanels(tabData, tabpanels);
}
else
{
this.egw().debug("error","Error while parsing tabbox, none or multiple tabs or tabpanels tags!",this);
}
}
if (this.options.tabs)
{
var readonly = this.getArrayMgr("readonlys").getEntry(this.id) || {};
for(var i = 0; i < this.options.tabs.length; i++)
{
var tab = this.options.tabs[i];
var tab_id = tab.id || tab.template;
var tab_options = {id: tab_id, template:tab.template};
if(tab.id)
{
tab_options.content = tab.id;
}
tabData.push({
"id": tab.id,
"label": this.egw().lang(tab.label),
"widget": null,
"widget_options": tab_options,
"contentDiv": null,
"flagDiv": null,
"hidden": typeof tab.hidden != "undefined" ? tab.hidden : readonly[tab_id] || false,
"XMLNode": null,
"promise": null
});
}
}
// Create the tab DOM-Nodes
this.createTabs(tabData);
},
/**
* Load is finished, set up tabs to load on their own
*/
doLoadingFinished: function()
{
var tab_deferred = jQuery.Deferred();
var promises = [];
var tabs = this;
// Specially process the selected index so it shows up right away
this._loadTab(this.selected_index,promises);
// We can do this and not wind up with 2 because child is a template,
// which has special handling
this._children[0].loadingFinished();
// Apply parent now, which actually puts into the DOM
this._super.apply(this, arguments);
// Defer parsing & loading of other tabs until later
window.setTimeout(function() {
for (var i = 0; i < tabs.tabData.length; i++)
{
tabs._loadTab(i,promises);
}
jQuery.when(promises).then(function() {
tab_deferred.resolve();
});
},0);
return tab_deferred.promise();
},
/**
* Load & render a tab's content
*/
_loadTab: function(index,promises) {
var tabData = this.tabData[index];
if(!tabData || tabData.loaded) return;
if(tabData.XMLNode != null)
{
tabData.widget = this.createElementFromNode(tabData.XMLNode,tabData.XMLNode.nodeName.toLowerCase());
// Release the XML node
tabData.XMLNode = null;
}
else if (tabData.widget_options)
{
tabData.widget = et2_createWidget('template',tabData.widget_options,this);
}
// Set loaded flag to not do this again, even if not fully done
tabData.loaded = true;
// loadingFinished() will be called either when the promise from doLoadingFinished is resolved,
// or during the normal execution
},
/**
* Check for custom tabs
*/
transformAttributes: function(_attrs) {
this._super.apply(this, arguments);
// Add in settings that are objects
var data = this.getArrayMgr("modifications").getEntry(this.id);
for(var key in data)
{
if(typeof data[key] === 'object' && ! _attrs[key]) _attrs[key] = data[key];
}
},
createTabs: function(tabData) {
this.tabData = tabData;
this.tabContainer.empty();
this.flagContainer.empty();
for (var i = 0; i < this.tabData.length; i++)
{
var entry = this.tabData[i];
entry.flagDiv = $j(document.createElement("span"))
.addClass("et2_tabflag")
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.appendTo(this.flagContainer);
entry.flagDiv.text(entry.label || "Tab");
if(entry.hidden)
{
entry.flagDiv.hide();
}
else
{
entry.flagDiv.click({"tabs": this, "idx": i}, function(e) {
e.data.tabs.setActiveTab(e.data.idx);
});
}
entry.contentDiv = $j(document.createElement("div"))
.addClass("et2_tabcntr")
.appendTo(this.tabContainer);
}
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// Check for a passed in value
if(this.options.value)
{
this.selected_index = 0;
for(var i = 0; i < this.tabData.length; i++)
{
if(this.tabData[i].id == this.options.value)
{
this.selected_index = i;
break;
}
}
}
this.setActiveTab(this.selected_index);
},
setActiveTab: function(_idx) {
this.selected_index = _idx;
// Remove the "active" flag from all tabs-flags
$j(".et2_tabflag", this.flagContainer).removeClass("active");
// Hide all tab containers
this.tabContainer.children().hide();
// Set the tab flag with the given index active and show the corresponding
// container
this.flagContainer.children(":eq(" + _idx + ")").addClass("active");
this.tabContainer.children(":eq(" + _idx + ")").show();
},
getDOMNode: function(_sender) {
if (_sender == this)
{
return this.container[0];
}
else
{
for (var i = 0; i < this.tabData.length; i++)
{
if (this.tabData[i].widget == _sender)
{
return this.tabData[i].contentDiv[0];
}
}
return null;
}
Major update of the et2_widget internal structure. The following changes were made: - All attributes of the widgets are now parsed from XML before the widget itself is created. These attributes plus all default values are then added to an associative array. The associative array is passed as second parameter to the init function of et2_widget, but is also available as this.options *after* the constructor of the et2_widget baseclass has been called. The et2_widget constructor also calls a function parseArrayMgrAttrs(_attrs) - in this function widget implementations can read the values from e.g. the content and validation_errors array and merge it into the given _attrs associative array. After the complete internal widgettree is completely loaded and created the "loadingFinished" function gets called and invokes all given setter functions. After that it "glues" the DOM tree together. This should also (I didn't measure it) be a bit faster than before, when the DOM-Tree was created on the fly. Please have a look at the changes of the et2_textbox widget to see how this affects writing widgets. Note: The "id" property is copied to the object scope on the top of the et2_widget constructor. - When widgets are cloned the "options" array gets passed along to the newly created widget. This means that changes made on the widgets during runtime are not automatically copied to the clone - as this didn't happen anyhow it is not a really disadvantage. On the other side there should be no difference between widgets directly inside the "overlay" xet tag and widgets which are inside instanciated templates. - The selbox widget doesn't work anymore - it relied on the loadAttributes function which isn't available anymore. et2_selbox should use the parseArrayMgrAttrs function to access - I've commented out some of the "validator"-code in etemplate2.js as it created some error messages when destroying the widget tree.
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},
set_height: function(_value) {
this.height = _value;
this.tabContainer.css("height", _value);
},
/**
* getValue has to return the value of the input widget
*/
getValue: function() {
return this.tabData[this.selected_index].id;
},
/**
* Is dirty returns true if the value of the widget has changed since it
* was loaded.
*/
isDirty: function() {
return this.selected_index != this.value;
},
/**
* Causes the dirty flag to be reseted.
*/
resetDirty: function()
{
this.value = this.selected_index;
},
isValid: function(messages) {
return true;
}
});
et2_register_widget(et2_tabbox, ["tabbox"]);