egroupware/phpgwapi/js/jsapi/egw_links.js

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/**
* EGroupware clientside API: link-registry, link-titles, generation links
*
* @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 (as AT stylite.de)
* @author Ralf Becker <RalfBecker@outdoor-training.de>
* @version $Id$
*/
/*egw:uses
egw_core;
*/
/**
* @augments Class
*/
egw.extend('links', egw.MODULE_GLOBAL, function()
{
"use strict";
/**
* Link registry
*
* @access: private, use egw.open() or egw.set_link_registry()
*/
var link_registry = null;
/**
* Local cache for link-titles
*
* @access private, use egw.link_title(_app, _id[, _callback, _context])
*/
var title_cache = {};
/**
* Queue for link_title requests
*
* @access private, use egw.link_title(_app, _id[, _callback, _context])
* @var object _app._id.[{callback: _callback, context: _context}[, ...]]
*/
var title_queue = {};
/**
* Uid of active jsonq request, to not start an other one, as we get notified
* before it's actually send to the server via our link_title_before_send callback.
* @access private
*/
var title_uid = null;
return {
/**
* Check if $app is in the registry and has an entry for $name
*
* @param {string} _app app-name
* @param {string} _name name / key in the registry, eg. 'view'
* @return {boolean|string} false if $app is not registered, otherwise string with the value for $name
* @memberOf egw
*/
link_get_registry: function(_app, _name)
{
if (typeof link_registry != 'object')
{
alert('egw.open() link registry is NOT defined!');
return false;
}
if (typeof link_registry[_app] == 'undefined')
{
return false;
}
var reg = link_registry[_app];
// some defaults (we set them directly in the registry, to do this only once)
if (typeof reg[_name] == 'undefined')
{
switch(_name)
{
case 'name':
reg.name = _app;
break;
case 'icon':
var app_data = this.app(_app);
if (typeof app_data != 'undefined' &&
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typeof app_data.icon != 'undefined' && app_data.icon != null)
{
reg.icon = (typeof app_data.icon_app != 'undefined' ? app_data.icon_app : _app)+'/'+app_data.icon;
}
else
{
reg.icon = _app+'/navbar';
}
break;
}
}
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if (reg && typeof _name == 'undefined')
{
// No key requested, return the whole thing
return reg;
}
return typeof reg[_name] == 'undefined' ? false : reg[_name];
},
/**
* Get mime-type information from app-registry
*
* @param {string} _type
* @return {object} with values for keys 'menuaction', 'mime_id' (path) or 'mime_url' and options 'mime_popup' and other values to pass one
*/
get_mime_info: function(_type)
{
for(var app in link_registry)
{
var reg = link_registry[app];
if (typeof reg.mime != 'undefined')
{
for(var mime in reg.mime)
{
if (mime == _type) return reg.mime[_type];
}
}
}
return null;
},
/**
* Get handler (link-data) for given path and mime-type
*
* @param {string|object} _path vfs path or object with attr path or id, app2 and id2 (path=/apps/app2/id2/id)
* @param {string} _type mime-type, if not given in _path object
* @return {string|object} string with EGw relative link, array with get-parameters for '/index.php' or null (directory and not filemanager access)
*/
mime_open: function(_path, _type)
{
var path;
if (typeof _path == 'object')
{
if (typeof _path.path == 'undefined')
{
path = '/apps/'+_path.app2+'/'+_path.id2+'/'+_path.id;
}
else
{
path = _path.path;
}
if (typeof _path.type == 'string')
{
_type = _path.type;
}
}
else
{
path = _path;
}
var mime_info = this.get_mime_info(_type);
if (mime_info)
{
var data = {};
for(var attr in mime_info)
{
switch(attr)
{
case 'mime_url':
data[mime_info.mime_url] = 'vfs://default' + path;
break;
case 'mime_id':
data[mime_info.mime_id] = path;
break;
default:
data[attr] = mime_info[attr];
}
}
}
else
{
var data = '/webdav.php' + path;
}
return data;
},
/**
* Get list of link-aware apps the user has rights to use
*
* @param {string} _must_support capability the apps need to support, eg. 'add', default ''=list all apps
* @return {object} with app => title pairs
*/
link_app_list: function(_must_support)
{
var apps = [];
for (var type in link_registry)
{
var reg = link_registry[type];
if (typeof _must_support != 'undefined' && _must_support && typeof reg[_must_support] == 'undefined') continue;
var app_sub = type.split('-');
if (this.app(app_sub[0]))
{
apps.push({"type": type, "label": this.lang(this.link_get_registry(type,'name'))});
}
}
// sort labels (caseinsensitive) alphabetic
apps = apps.sort(function(_a,_b) {
var al = _a.label.toUpperCase();
var bl = _b.label.toUpperCase();
return al == bl ? 0 : (al > bl ? 1 : -1);
});
// create sorted associative array / object
var sorted = {};
for(var i = 0; i < apps.length; ++i)
{
sorted[apps[i].type] = apps[i].label;
}
return sorted;
},
/**
* Set link registry
*
* @param {object} _registry whole registry or entries for just one app
* @param {string} _app
*/
set_link_registry: function (_registry, _app)
{
if (typeof _app == 'undefined')
{
link_registry = _registry;
}
else
{
link_registry[_app] = _registry;
}
},
/**
* Generate a url which supports url or cookies based sessions
*
* Please note, the values of the query get url encoded!
*
* @param {string} _url a url relative to the egroupware install root, it can contain a query too
* @param {object|string} _extravars query string arguements as string or array (prefered)
* if string is used ambersands in vars have to be already urlencoded as '%26', function ensures they get NOT double encoded
* @return {string} generated url
*/
link: function(_url, _extravars)
{
if (_url[0] != '/')
{
alert("egw.link('"+_url+"') called with url starting NOT with a slash!");
var app = window.egw_appName;
if (app != 'login' && app != 'logout') _url = app+'/'+_url;
}
// append the url to the webserver url, if not already contained or empty
if (this.webserverUrl && this.webserverUrl != '/' && _url.indexOf(this.webserverUrl+'/') != 0)
{
_url = this.webserverUrl + _url;
}
var vars = {};
// check if the url already contains a query and ensure that vars is an array and all strings are in extravars
var url_othervars = _url.split('?',2);
_url = url_othervars[0];
var othervars = url_othervars[1];
if (_extravars && typeof _extravars == 'object')
{
$j.extend(vars, _extravars);
_extravars = othervars;
}
else
{
if (!_extravars) _extravars = '';
if (othervars) _extravars += (_extravars?'&':'')+othervars;
}
// parse extravars string into the vars array
if (_extravars)
{
_extravars = _extravars.split('&');
for(var i=0; i < _extravars.length; ++i)
{
var name_val = _extravars[i].split('=',2);
var name = name_val[0];
var val = name_val[1] || '';
if (val.indexOf('%26') != -1) val = val.replace(/%26/g,'&'); // make sure to not double encode &
if (name.lastIndexOf('[]') == name.length-2)
{
name = name.substr(0,name.length-2);
if (typeof vars[name] == 'undefined') vars[name] = [];
vars[name].push(val);
}
else
{
vars[name] = val;
}
}
}
// if there are vars, we add them urlencoded to the url
var query = [];
// If ajax flag is there, it must be the last one
var ajax = vars.ajax || false;
delete vars.ajax;
for(var name in vars)
{
var val = vars[name] || ''; // fix error for eg. null, which is an object!
if (typeof val == 'object')
{
for(var i=0; i < val.length; ++i)
{
query.push(name+'[]='+encodeURIComponent(val[i]));
}
}
else
{
query.push(name+'='+encodeURIComponent(val));
}
}
// Add ajax flag at the end
if(ajax)
{
query.push('ajax='+encodeURIComponent(ajax));
}
return query.length ? _url+'?'+query.join('&') : _url;
},
/**
* Query a title of _app/_id
*
* @param {string} _app
* @param {string|number} _id
* @param {function} _callback optinal callback, required if for responses from the server
* @param {object} _context context for the callback
* @param {boolean} _force_reload true load again from server, even if already cached
* @return {string|boolean|null} string with title if it exist in local cache or null if not
*/
link_title: function(_app, _id, _callback, _context, _force_reload)
{
// check if we have a cached title --> return it direct
if (typeof title_cache[_app] != 'undefined' && typeof title_cache[_app][_id] != 'undefined' && _force_reload !== true)
{
if (typeof _callback == 'function')
{
_callback.call(_context, title_cache[_app][_id]);
}
return title_cache[_app][_id];
}
// no callback --> return null
if (typeof _callback != 'function')
{
return null; // not found in local cache and cant do a synchronious request
}
// queue the request
if (typeof title_queue[_app] == 'undefined')
{
title_queue[_app] = {};
}
if (typeof title_queue[_app][_id] == 'undefined')
{
title_queue[_app][_id] = [];
}
title_queue[_app][_id].push({callback: _callback, context: _context});
// if there's no active jsonq request, start a new one
if (title_uid == null)
{
title_uid = this.jsonq(_app+'.etemplate_widget_link.ajax_link_titles.etemplate',[{}], this.link_title_callback, this, this.link_title_before_send);
}
},
/**
* Callback to add all current title requests
*
* @param {object} _params of parameters, only first parameter is used
*/
link_title_before_send: function(_params)
{
// add all current title-requests
for(var app in title_queue)
{
for(var id in title_queue[app])
{
if (typeof _params[0][app] == 'undefined')
{
_params[0][app] = [];
}
_params[0][app].push(id);
}
}
title_uid = null; // allow next request to jsonq
},
/**
* Callback for server response
*
* @param {object} _response _app => _id => title
*/
link_title_callback: function(_response)
{
if (typeof _response != 'object')
{
throw "Wrong parameter for egw.link_title_callback!";
}
for(var app in _response)
{
if (typeof title_cache[app] != 'object')
{
title_cache[app] = {};
}
for (var id in _response[app])
{
var title = _response[app][id];
// cache locally
title_cache[app][id] = title;
// call callbacks waiting for title of app/id
if(typeof title_queue[app][id] != "undefined")
{
for(var i=0; i < title_queue[app][id].length; ++i)
{
var callback = title_queue[app][id][i];
callback.callback.call(callback.context, title);
}
}
delete title_queue[app][id];
}
}
},
/**
* Create quick add selectbox
*
* @param {DOMnode} _parent parent to create selectbox in
*/
link_quick_add: function(_parent)
{
// check if quick-add selectbox is alread there, only create it again if not
if (document.getElementById('quick_add_selectbox')) return;
var select = jQuery(document.createElement('select')).attr('id', 'quick_add_selectbox');
jQuery(typeof _parent == 'string' ? '#'+_parent : _parent).append(select);
var self = this;
// bind change handler
select.change(function(){
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if (this.value) self.open('', this.value, 'add', {}, undefined, this.value);
this.value = '';
});
// need to load common translations for app-names
this.langRequire(window, [{app: 'common', lang: this.preference('lang')}], function(){
select.append(jQuery(document.createElement('option')).attr('value', '').text(self.lang('Add')+' ...'));
var apps = self.link_app_list('add');
for(var app in apps)
{
var option = jQuery(document.createElement('option')).attr('value', app).text(self.lang(apps[app]));
select.append(option);
}
});
}
};
});