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notify server about closed windows, so we can destroy no longer eT needed session/requests and so keep cache small

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This commit is contained in:
Ralf Becker 2014-01-16 12:13:16 +00:00
parent 32701f01fc
commit 205794f4a7
2 changed files with 55 additions and 2 deletions
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15
etemplate/inc/class.etemplate.inc.php
View File

@ -309,6 +309,21 @@ class etemplate_new extends etemplate_widget_template
return $content;
}
/**
* Notify server that eT session/request is no longer needed, because user closed window
*
* @param string $_exec_id
*/
static public function ajax_destroy_session($_exec_id)
{
//error_log(__METHOD__."('$_exec_id')");
if (($request = etemplate_request::read($_exec_id)))
{
$request->remove_if_not_modified();
unset($request);
}
}
/**
* Process via POST submitted content
*/

42
etemplate/js/etemplate2.js
View File

@ -120,7 +120,7 @@ etemplate2.prototype.clear = function()
{
$j(window).off("."+this.uniqueId);
}
if (this.widgetContainer != null)
{
// Un-register handler
@ -190,11 +190,43 @@ etemplate2.prototype._createArrayManagers = function(_data)
return result;
};
/**
* Bind our unload handler to notify server that eT session/request no longer needed
*/
etemplate2.prototype.bind_unload = function()
{
if (!window.onbeforeunload)
{
window.onbeforeunload = this.destroy_session = jQuery.proxy(function(ev)
{
var request = egw.json(self.egw().getAppName()+".etemplate_new.ajax_destroy_session.etemplate",
[this.etemplate_exec_id], null, null, false);
request.sendRequest();
}, this);
}
};
/**
* Unbind our unload handler
*/
etemplate2.prototype.unbind_unload = function()
{
if (window.onbeforeunload === this.destroy_session)
{
window.onbeforeunload = null;
delete this.destroy_session;
}
};
/**
* Loads the template from the given URL and sets the data object
*/
etemplate2.prototype.load = function(_name, _url, _data, _callback)
{
if (_data.etemplate_exec_id)
{
this.bind_unload();
}
egw().debug("info", "Loaded data", _data);
var currentapp = _data.currentapp || window.egw_appName;
@ -294,7 +326,7 @@ etemplate2.prototype.load = function(_name, _url, _data, _callback)
// Connect to the window resize event
$j(window).on("resize."+this.uniqueId, this, function(e) {e.data.resize();});
// Insert the document fragment to the DOM Container
this.DOMContainer.appendChild(frag);
@ -468,6 +500,9 @@ etemplate2.prototype.submit = function(button, async)
// Create the request object
if (this.menuaction)
{
// unbind our session-destroy handler, as we are submitting
this.unbind_unload();
var api = this.widgetContainer.egw();
var request = api.json(this.menuaction, [this.etemplate_exec_id,values], null, this, async);
request.sendRequest();
@ -500,6 +535,9 @@ etemplate2.prototype.postSubmit = function()
if (canSubmit)
{
// unbind our session-destroy handler, as we are submitting
this.unbind_unload();
var form = jQuery("<form id='form' action='"+egw().webserverUrl +
"/etemplate/process_exec.php?menuaction=" + this.widgetContainer.egw().getAppName()+ "&ajax=true' method='POST'>");