/**
 * EGroupware clientside API: opening of windows, popups or application entries
 *
 * @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 $Id$
 */

"use strict";

/*egw:uses
	egw_core;
	egw_links;
*/

/**
 * @augments Class
 */
egw.extend('open', egw.MODULE_WND_LOCAL, function(_egw, _wnd) {


	/**
	 * Magic handling for mailto: uris using mail application.
	 *
	 * We check for open compose windows and add the address in as specified in
	 * the URL.  If there are no open compose windows, a new one is opened.  If
	 * there are more than one open compose window, we prompt for which one to
	 * use.
	 *
	 * The user must have set the 'Open EMail addresses in external mail program' preference
	 * to No, otherwise the browser will handle it.
	 *
	 * @param {String} uri
	 */
	function mailto(uri)
	{
		// Parse uri into a map
		var match = [], index;
		var mailto = uri.match(/^mailto:([^?]+)/) || [];
		var hashes = uri.slice(uri.indexOf('?') + 1).split('&');
		for(var i = 0; i < hashes.length; i++)
		{
			index = hashes[i].split('=');
			match.push(index[0]);
			match[index[0]] = index[1];
		}

		var content = {
			to: mailto[1] || [],
			cc: match['cc']	|| [],
			bcc: match['bcc'] || [],
		}

		// Get open compose windows
		var compose = egw.getOpenWindows("mail", /^compose_/);
		if(compose.length == 0)
		{
			// No compose windows, might be no mail app.js
			// We really want to use mail_compose() here
			egw.open('','mail','add',{'preset[mailto]': uri},'compose__','mail')
		}
		if(compose.length == 1)
		{
			try {
				var popup = egw.open_link('',compose[0],'100x100','mail');
				popup.app.mail.setCompose(compose[0], content);
			} catch(e) {
				// Looks like a leftover window that wasn't removed from the list
				egw.debug("warn", e.message);
				popup.close();
				egw.windowClosed("mail",popup);
				window.setTimeout(function() {
					egw.open_link(uri);
					console.debug("Trying again with ", uri);
				}, 500);
			}
		}
		else if(compose.length > 1)
		{
			// Need to prompt
			var prompt = $j(document.createElement('ul'));
			for(var i = 0; i < compose.length; i++)
			{
				var w = window.open('',compose[i],'100x100');
				if(w.closed) continue;
				w.blur();
				var title = w.document.title || egw.lang("compose");
				$j("<li data-window = '" + compose[i] + "'>"+ title + "</li>")
					.click(function() {
						var w = egw.open_link('',$j(this).attr("data-window"),'100x100','mail');
						w.app.mail.setCompose(w.name, content);
						prompt.dialog("close");
					})
					.appendTo(prompt);
			}
			_wnd.setTimeout(function() {
				this.focus();
			}, 200);
			var _buttons = {};
			_buttons[egw.lang("cancel")] = function() {
				$j(this).dialog("close");
			};
			prompt.dialog({
				buttons: _buttons
			});
		}
	}

	return {
		/**
		 * View an EGroupware entry: opens a popup of correct size or redirects window.location to requested url
		 *
		 * Examples:
		 * - egw.open(123,'infolog') or egw.open('infolog:123') opens popup to edit or view (if no edit rights) infolog entry 123
		 * - egw.open('infolog:123','timesheet','add') opens popup to add new timesheet linked to infolog entry 123
		 * - egw.open(123,'addressbook','view') opens addressbook view for entry 123 (showing linked infologs)
		 * - egw.open('','addressbook','view_list',{ search: 'Becker' }) opens list of addresses containing 'Becker'
		 *
		 * @param string|int|object id_data either just the id or if app=="" "app:id" or object with all data
		 * 	to be able to open files you need to give: (mine-)type, path or id, app2 and id2 (path=/apps/app2/id2/id"
		 * @param string app app-name or empty (app is part of id)
		 * @param string type default "edit", possible "view", "view_list", "edit" (falls back to "view") and "add"
		 * @param object|string extra extra url parameters to append as object or string
		 * @param string target target of window to open
		 * @param string target_app target application to open in that tab
		 * @memberOf egw
		 */
		open: function(id_data, app, type, extra, target, target_app)
		{
			// Log for debugging purposes - special log tag 'navigation' always
			// goes in user log, if user log is enabled
			egw.debug("navigation",
				"egw.open(id_data=%o, app=%s, type=%s, extra=%o, target=%s, target_app=%s)",
				id_data,app,type,extra,target,target_app
			);

			var id;
			if(typeof target === 'undefined')
			{
				target = '_blank';
			}
			if (!app)
			{
				if (typeof id_data != 'object')
				{
					var app_id = id_data.split(':',2);
					app = app_id[0];
					id = app_id[1];
				}
				else
				{
					app = id_data.app;
					id = id_data.id;
					if(typeof id_data.type != 'undefined')
					{
						type = id_data.type;
					}
				}
			}
			else if (app != 'file')
			{
				id = id_data;
				id_data = { 'id': id, 'app': app, 'extra': extra };
			}
			var url;
			var popup;
			var params;
			if (app == 'file')
			{
				url = this.mime_open(id_data);
				if (typeof url == 'object')
				{
			 		if(typeof url.mime_popup != 'undefined')
					{
						popup = url.mime_popup;
						delete url.mime_popup;
					}
			 		if(typeof url.mime_target != 'undefined')
					{
						target = url.mime_target;
						delete url.mime_target;
					}
					params = url;
					url = '/index.php';
				}
			}
			else
			{
				var app_registry = this.link_get_registry(app);

				if (!app || !app_registry)
				{
					alert('egw.open() app "'+app+'" NOT defined in link registry!');
					return;
				}
				if (typeof type == 'undefined') type = 'edit';
				if (type == 'edit' && typeof app_registry.edit == 'undefined') type = 'view';
				if (typeof app_registry[type] == 'undefined')
				{
					alert('egw.open() type "'+type+'" is NOT defined in link registry for app "'+app+'"!');
					return;
				}
				url = '/index.php';
				// Copy, not get a reference, or we'll change the registry
				params = jQuery.extend({},app_registry[type]);
				if (type == 'view' || type == 'edit')	// add id parameter for type view or edit
				{
					params[app_registry[type+'_id']] = id;
				}
				else if (type == 'add' && id)	// add add_app and app_id parameters, if given for add
				{
					var app_id = id.split(':',2);
					params[app_registry.add_app] = app_id[0];
					params[app_registry.add_id] = app_id[1];
				}

				if (typeof extra == 'string')
				{
					url += '?'+extra;
				}
				else if (typeof extra == 'object')
				{
					$j.extend(params, extra);
				}
				popup = app_registry[type+'_popup'];
			}
			return this.open_link(this.link(url, params), target, popup, target_app);
		},

		/**
		 * Open a link, which can be either a menuaction, a EGroupware relative url or a full url
		 *
		 * @param string _link menuaction, EGroupware relative url or a full url (incl. "mailto:" or "javascript:")
		 * @param string _target optional target / window name
		 * @param string _popup widthxheight, if a popup should be used
		 * @param string _target_app app-name for opener
		 */
		open_link: function(_link, _target, _popup, _target_app)
		{
			// Log for debugging purposes - don't use navigation here to avoid
			// flooding log with details already captured by egw.open()
			egw.debug("log",
				"egw.open_link(_link=%s, _target=%s, _popup=%s, _target_app=%s)",
				_link,_target,_popup,_target_app
			);

			var url = _link;
			if (url.indexOf('javascript:') == 0)
			{
				eval(url.substr(11));
				return;
			}
			if (url.indexOf('mailto:') == 0)
			{
				return mailto(url);
			}
			// link is not necessary an url, it can also be a menuaction!
			if (url.indexOf('/') == -1 && url.split('.').length >= 3 &&
				!(url.indexOf('mailto:') == 0 || url.indexOf('/index.php') == 0 || url.indexOf('://') != -1))
			{
				url = "/index.php?menuaction="+url;
			}
			// append the url to the webserver url, if not already contained or empty
			if (url[0] == '/' && this.webserverUrl && this.webserverUrl != '/' && url.indexOf(this.webserverUrl+'/') != 0)
			{
				url = this.webserverUrl + url;
			}
			if (_popup)
			{
				var w_h = _popup.split('x');
				if (w_h[1] == 'egw_getWindowOuterHeight()') w_h[1] = egw_getWindowOuterHeight();
				var popup_window = _wnd.egw_openWindowCentered2(url, _target || '_blank', w_h[0], w_h[1], false, _target_app, true);

				// Remember which windows are open
				egw().storeWindow(_target_app, popup_window);

				return popup_window;
			}
			else if ((typeof _target == 'undefined' || _target == '_self' || typeof this.link_app_list()[_target] != "undefined"))
			{
				if(_target == '_self')
				{
					// '_self' isn't allowed, but we can handle it
					_target = undefined;
				}
				// Use framework's link handler, if present
				return this.link_handler(url,_target);
			}
			else
			{
				return _wnd.open(url, _target);
			}
		},

		/**
		 * Use frameworks (framed template) link handler to open a url
		 *
		 * @param {string} _url
		 * @param {string} _target
		 */
		link_handler: function(_url, _target)
		{
			if (_wnd.framework)
			{
				_wnd.framework.linkHandler(_url, _target);
			}
			else
			{
				_wnd.location.href = _url;
			}
		}
	};
});


// Add protocol handler as an option if mail handling is not forced so mail can handle mailto:
/* Not working consistantly yet
$j(function() {
try {
	if(egw.user('apps').mail && (egw.preference('force_mailto','addressbook')||true) != '0')
	{
		var params = egw.link_get_registry('mail','add');
		if(params)
		{
			params['preset[mailto]'] = ''; // %s, but egw.link will encode it
			navigator.registerProtocolHandler("mailto",egw.link('/index.php', params)+'%s', egw.lang('mail'));
		}
	}
} catch (e) {}
});
*/