egroupware_official/phpgwapi/js/framework/fw_browser.js

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/**
* eGroupware Framework browser object
* @package framework
* @author Hadi Nategh <hn@stylite.de>
* @copyright Stylite AG 2014
* @description Framework browser object, is implementation of browser class in order to display application content
*/
/*egw:uses
jquery.jquery;
egw_inheritance.js;
*/
/**
* Constants definition
*/
EGW_BROWSER_TYPE_NONE = 0;
EGW_BROWSER_TYPE_IFRAME = 1;
EGW_BROWSER_TYPE_DIV = 2;
"use strict";
var fw_browser = Class.extend({
/**
* @param {string} _app
* @param {function} _heightCallback
* Framework browser class constructor
*/
init: function (_app, _heightCallback){
//Create a div which contains both, the legacy iframe and the contentDiv
this.baseDiv = document.createElement('div');
this.type = EGW_BROWSER_TYPE_NONE;
this.iframe = null;
this.contentDiv = null;
this.heightCallback = _heightCallback;
this.app = _app;
this.currentLocation = '';
this.ajaxLoaderDiv = null;
this.loadingDeferred = null;
},
/**
* Triggers resize event on window
*/
callResizeHandler: function()
{
var wnd = window;
if (this.iframe)
{
wnd = this.iframe.contentWindow;
}
// Call the resize handler (we have to use the jquery object of the iframe!)
if (wnd && typeof wnd.$j != "undefined")
{
wnd.$j(wnd).trigger("resize");
}
},
/**
* Resizes both, the contentDiv and the iframe to the size returned from the heightCallback
*/
resize: function()
{
var height = this.heightCallback.call(this.iframe) + 'px';
//Set the height of the content div or the iframe
if (this.contentDiv)
{
this.contentDiv.style.height = height;
}
if (this.iframe)
{
this.iframe.style.height = height;
}
},
/**
* Sets browser type either DIV or IFRAME
*
* @param {int} _type
*/
setBrowserType: function(_type)
{
//Only do anything if the browser type has changed
if (_type != this.type)
{
//Destroy the iframe and/or the contentDiv
$j(this.baseDiv).empty();
this.iframe = null;
this.contentDiv = null;
if(this.loadingDeferred && this.type)
{
this.loadingDeferred.reject();
}
switch (_type)
{
//Create the div for displaying the content
case EGW_BROWSER_TYPE_DIV:
this.contentDiv = document.createElement('div');
$j(this.contentDiv).addClass('egw_fw_content_browser_div');
$j(this.baseDiv).append(this.contentDiv);
break;
case EGW_BROWSER_TYPE_IFRAME:
//Create the iframe
this.iframe = document.createElement('iframe');
this.iframe.style.width = "100%";
this.iframe.style.borderWidth = 0;
this.iframe.frameBorder = 0;
this.iframe.name = 'egw_app_iframe_' + this.app.appName;
$j(this.iframe).addClass('egw_fw_content_browser_iframe');
$j(this.baseDiv).append(this.iframe);
break;
}
this.resize();
this.type = _type;
}
},
/**
* Sets url to browse and load the content in proper content browser
* @param {string} _url
* @return {Deferred} Returns a Deferred promise object
*/
browse: function(_url)
{
// check if app has its own linkHandler and it accepts the link (returns true), or returns different url instead
if (typeof window.app == 'object' && typeof window.app[this.app.appName] == 'object' &&
typeof window.app[this.app.appName].linkHandler == 'function')
{
var ret = window.app[this.app.appName].linkHandler.call(window.app[this.app.appName], _url);
{
if (ret === true) return this.loadingDeferred.promise();
if (typeof ret === 'string')
{
_url = ret;
}
}
}
var useIframe = true;
var targetUrl = _url;
if(_url == this.currentLocation && this.loadingDeferred != null)
{
// Still loading
return this.loadingDeferred.promise();
}
// Show loader div, start blocking
var self = this;
this.ajaxLoaderDiv = jQuery('<div class="loading ui-widget-overlay ui-front">'+egw.lang('please wait...')+'</div>').insertBefore(this.baseDiv);
this.loadingDeferred = new jQuery.Deferred();
// Try to escape from infinitive not resolved loadingDeferred
// At least user can close the broken tab and work with the others.
// Define a escape timeout for 5 sec
this.ajaxLoaderDivTimeout = setTimeout(function(){
(self.ajaxLoaderDiv || jQuery('div.loading')).hide().remove();
self.ajaxLoaderDiv = null;
},5000);
this.loadingDeferred.always(function() {
if(self.ajaxLoaderDiv)
{
self.ajaxLoaderDiv.hide().remove();
self.ajaxLoaderDiv = null;
// Remove escape timeout
clearTimeout(self.ajaxLoaderDivTimeout);
}
// Open tutorial popup with an introduction video about egroupware
// the popup can be discarded for the next time show if user
// select "Never" or can select "Later" and the introduction
// dialog will show upon the next session refresh
if (!egw.preference('egw_tutorial_noautoload', 'common')
&& !parseInt(document.getElementById('egw_script_id').getAttribute('data-framework-reload')))
{
var buttons = [
{text:"Show", id:"show", default:"true"},
{text:"Later", id:"later"},
{text:"Never", id:"never"}
];
et2_dialog.show_dialog(function (_button_id)
{
if (_button_id == "show" )
{
egw.open_link(egw.link('/index.php', 'menuaction=home.home_tutorial_ui.popup&tuid=introduction-'+egw.preference('lang')+'-0-a'),'_blank','960x580');
}
else if(_button_id == "never")
{
egw.set_preference('common', 'egw_tutorial_noautoload',true);
}
},
egw.lang('We would like to introduce you to EGroupware by showing a short introduction video.'),
egw.lang('Introduction'),
{}, buttons, et2_dialog.QUESTION_MESSAGE, undefined, egw);
}
});
// Check whether the given url is a pseudo url which should be executed
// by calling the ajax_exec function
// we now send whole url back to server, so apps can use $_GET['ajax']==='true'
// to detect app-icon was clicked and eg. further reset filters
var matches = _url.match(/\/index.php\?menuaction=([A-Za-z0-9_\.]*.*&ajax=true.*)$/);
if (matches) {
// Matches[1] contains the menuaction which should be executed - replace
// the given url with the following line. This will be evaluated by the
// jdots_framework ajax_exec function which will be called by the code
// below as we set useIframe to false.
targetUrl = "index.php?menuaction=" + matches[1];
useIframe = false;
}
// External link, but we'd still like to use everything without iframe
if(_url.indexOf('no_popup=1') > 0)
{
useIframe = false;
}
// Destroy application js
if(window.app[this.app.appName] && window.app[this.app.appName].destroy)
{
window.app[this.app.appName].destroy();
}
// Unload etemplate2, if there
if(typeof etemplate2 == "function")
{
// Clear all etemplates on this tab, regardless of application, by using DOM nodes
$j('.et2_container',this.contentDiv||this.baseDiv).each(function() {
var et = etemplate2.getById(this.id);
if(et !== null)
{
et.clear();
}
});
}
else if(this.iframe && typeof this.iframe.contentWindow.etemplate2 == "function")
{
try
{
if(typeof this.iframe.contentWindow.etemplate2 == "function")
{
// Clear all etemplates on this tab, regardless of application, by using DOM nodes
var content = this.iframe.contentWindow;
$j('.et2_container',this.iframe.contentWindow).each(function() {
var et = content.etemplate2.getById(this.id);
if(et !== null)
{
et.clear();
}
});
}
}
catch(e) {} // catch error if eg. SiteMgr runs a different origin, otherwise tab cant be closed
}
// Save the actual url which has been passed as parameter
this.currentLocation = _url;
//Set the browser type
if (useIframe)
{
this.setBrowserType(EGW_BROWSER_TYPE_IFRAME);
//Postpone the actual "navigation" - gives some speedup with internet explorer
//as it does no longer blocks the complete page until all frames have loaded.
window.setTimeout(function() {
//Load the iframe content
self.iframe.src = _url;
//Set the "_legacy_iframe" flag to allow link handlers to easily determine
//the type of the link source
if (self.iframe && self.iframe.contentWindow) {
try {
self.iframe.contentWindow._legacy_iframe = true;
// Focus the iframe of the current application
if (self.app == framework.activeApp)
{
self.iframe.contentWindow.focus();
}
}
catch (e) {
// ignoer SecurityError: Blocked a frame ..., caused by different origin
}
}
if(self.loadingDeferred)
{
self.loadingDeferred.resolve();
self.loadingDeferred = null;
}
}, 1);
}
else
{
this.setBrowserType(EGW_BROWSER_TYPE_DIV);
//Special treatement of "about:blank"
if (targetUrl == "about:blank")
{
if (this.app.sidemenuEntry)
this.app.sidemenuEntry.hideAjaxLoader();
egw_widgetReplace(this.app.appName, this.contentDiv, '');
}
else
{
//Perform an AJAX request loading application output
if (this.app.sidemenuEntry)
this.app.sidemenuEntry.showAjaxLoader();
this.data = "";
$j(this.contentDiv).empty();
var self_egw = egw(this.app.appName);
var req = self_egw.json(
this.app.getMenuaction('ajax_exec'),
[targetUrl], this.browse_callback,this, true, this
);
req.sendRequest();
}
}
return this.loadingDeferred.promise();
},
/**
*
* @param {type} _data
* @return {undefined} return undefined if data is not from the right response
*/
browse_callback: function(_data)
{
// Abort if data is from wrong kind of response - only 'data'
if(!_data || _data.type != undefined) return;
this.data = _data[0];
this.browse_finished();
},
/**
* Get call via browse_callback in order to attaching nodes to the DOM
*/
browse_finished: function()
{
if (this.app.sidemenuEntry)
this.app.sidemenuEntry.hideAjaxLoader();
// egw_widgetReplace(this.app.appName, this.contentDiv, this.data);
content = {
html: this.data,
js: ''
};
if (this.app == framework.activeApp)
{
window.focus();
}
egw_seperateJavaScript(content);
// Insert the content
$j(this.contentDiv).append(content.html);
// Run the javascript code
//console.log(content.js);
$j(this.contentDiv).append(content.js);
if(this.loadingDeferred)
{
this.loadingDeferred.resolve();
}
},
/**
* REload the content of the browser object
*/
reload: function()
{
switch (this.type)
{
case EGW_BROWSER_TYPE_DIV:
this.browse(this.currentLocation);
break;
case EGW_BROWSER_TYPE_IFRAME:
//Do a simple reload in the iframe case
this.iframe.contentWindow.location.reload();
break;
}
},
/**
*
*/
blank: function()
{
this.browse('about:blank', this.type == EGW_BROWSER_TYPE_IFRAME);
}
});