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Only output Facebook namespace, scripts, css, etc. when strictly necessary

This commit is contained in:
Zach Copley 2009-06-30 04:57:59 +00:00
parent e00f433314
commit 13d5479a11
1 changed files with 106 additions and 50 deletions
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156
plugins/FBConnect/FBConnectPlugin.php
View File

@ -69,84 +69,142 @@ class FBConnectPlugin extends Plugin
// Add in xmlns:fb
function onStartShowHTML($action)
{
// XXX: Horrible hack to make Safari, FF2, and Chrome work with
// Facebook Connect. These browser cannot use Facebook's
// DOM parsing routines unless the mime type of the page is
// text/html even though Facebook Connect uses XHTML. This is
// A bug in Facebook Connect, and this is a temporary solution
// until they fix their JavaScript libs.
header('Content-Type: text/html');
$action->extraHeaders();
if ($this->requiresFB($action)) {
$action->startXML('html',
'-//W3C//DTD XHTML 1.0 Strict//EN',
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
// XXX: Horrible hack to make Safari, FF2, and Chrome work with
// Facebook Connect. These browser cannot use Facebook's
// DOM parsing routines unless the mime type of the page is
// text/html even though Facebook Connect uses XHTML. This is
// A bug in Facebook Connect, and this is a temporary solution
// until they fix their JavaScript libs.
header('Content-Type: text/html');
$language = $action->getLanguage();
$action->extraHeaders();
$action->elementStart('html',
array('xmlns' => 'http://www.w3.org/1999/xhtml',
'xmlns:fb' => 'http://www.facebook.com/2008/fbml',
'xml:lang' => $language,
'lang' => $language));
$action->startXML('html',
'-//W3C//DTD XHTML 1.0 Strict//EN',
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
return false;
$language = $action->getLanguage();
$action->elementStart('html',
array('xmlns' => 'http://www.w3.org/1999/xhtml',
'xmlns:fb' => 'http://www.facebook.com/2008/fbml',
'xml:lang' => $language,
'lang' => $language));
return false;
} else {
return true;
}
}
// Note: this script needs to appear in the <body>
function onStartShowHeader($action)
{
$apikey = common_config('facebook', 'apikey');
$plugin_path = common_path('plugins/FBConnect');
if ($this->requiresFB($action)) {
$login_url = common_local_url('FBConnectAuth');
$logout_url = common_local_url('logout');
$apikey = common_config('facebook', 'apikey');
$plugin_path = common_path('plugins/FBConnect');
// XXX: Facebook says we don't need this FB_RequireFeatures(),
// but we actually do, for IE and Safari. Gar.
$login_url = common_local_url('FBConnectAuth');
$logout_url = common_local_url('logout');
$html = sprintf('<script type="text/javascript">
window.onload = function () {
FB_RequireFeatures(
["XFBML"],
function() {
FB.Facebook.init("%s", "../xd_receiver.html");
}
); }
// XXX: Facebook says we don't need this FB_RequireFeatures(),
// but we actually do, for IE and Safari. Gar.
function goto_login() {
window.location = "%s";
}
$html = sprintf('<script type="text/javascript">
window.onload = function () {
FB_RequireFeatures(
["XFBML"],
function() {
FB.Facebook.init("%s", "../xd_receiver.html");
}
); }
function goto_logout() {
window.location = "%s";
}
</script>', $apikey,
$login_url, $logout_url);
function goto_login() {
window.location = "%s";
}
function goto_logout() {
window.location = "%s";
}
</script>', $apikey,
$login_url, $logout_url);
$action->raw($html);
}
$action->raw($html);
}
// Note: this script needs to appear as close as possible to </body>
function onEndShowFooter($action)
{
if ($this->requiresFB($action)) {
$action->element('script',
array('type' => 'text/javascript',
'src' => 'http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php'),
'');
$action->element('script',
array('type' => 'text/javascript',
'src' => 'http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php'),
'');
}
}
function onEndShowLaconicaStyles($action)
{
$action->element('link', array('rel' => 'stylesheet',
'type' => 'text/css',
'href' => common_path('plugins/FBConnect/FBConnectPlugin.css')));
if ($this->requiresFB($action)) {
$action->element('link', array('rel' => 'stylesheet',
'type' => 'text/css',
'href' => common_path('plugins/FBConnect/FBConnectPlugin.css')));
}
}
/**
* Does the Action we're plugged into require the FB Scripts? We only
* want to output FB namespace, scripts, CSS, etc. on the pages that
* really need them.
*
* @param Action the action in question
*
* @return boolean true
*/
function requiresFB($action) {
// If you're logged in w/FB Connect, you always need the FB stuff
$fbuid = $this->loggedIn();
if (!empty($fbuid)) {
return true;
}
// List of actions that require FB stuff
$needy = array('FBConnectLoginAction',
'FBConnectauthAction',
'FBConnectSettingsAction');
if (in_array(get_class($action), $needy)) {
return true;
}
return false;
}
/**
* Is the user currently logged in with FB Connect?
*
* @return mixed $fbuid the Facebook ID of the logged in user, or null
*/
function loggedIn()
{
$user = common_current_user();
@ -170,8 +228,6 @@ class FBConnectPlugin extends Plugin
$e->getMessage());
}
// Display Facebook Logged in indicator w/Facebook favicon
if ($fbuid > 0) {
return $fbuid;
}