Notification.prototype.start = function () {
var options, $notification, $tagMatches, autohideCount;
- $area.show();
+ $area.css( 'display', '' );
if ( this.isOpen ) {
return;
if ( openNotificationCount === 0 ) {
// Hide the area after the last notification closes. Otherwise, the padding on
// the area can be obscure content, despite the area being empty/invisible (T54659). // FIXME
- $area.hide();
+ $area.css( 'display', 'none' );
notif.$notification.remove();
} else {
notif.$notification.slideUp( 'fast', function () {
* @ignore
*/
function init() {
- var offset,
+ var offset, notif,
isFloating = false;
+ function updateAreaMode() {
+ var shouldFloat = window.pageYOffset > offset.top;
+ if ( isFloating === shouldFloat ) {
+ return;
+ }
+ isFloating = shouldFloat;
+ $area
+ .toggleClass( 'mw-notification-area-floating', isFloating )
+ .toggleClass( 'mw-notification-area-layout', !isFloating );
+ }
+
+ // Write to the DOM:
+ // Prepend the notification area to the content area and save its object.
$area = $( '<div id="mw-notification-area" class="mw-notification-area mw-notification-area-layout"></div>' )
// Pause auto-hide timers when the mouse is in the notification area.
.on( {
e.stopPropagation();
} );
- // Prepend the notification area to the content area and save it's object.
mw.util.$content.prepend( $area );
- offset = $area.offset();
- $area.hide();
- function updateAreaMode() {
- var shouldFloat = window.pageYOffset > offset.top;
- if ( isFloating === shouldFloat ) {
- return;
- }
- isFloating = shouldFloat;
- $area
- .toggleClass( 'mw-notification-area-floating', isFloating )
- .toggleClass( 'mw-notification-area-layout', !isFloating );
- }
+ // Read from the DOM:
+ // Must be in the next frame to avoid synchronous layout
+ // computation from offset()/getBoundingClientRect().
+ rAF( function () {
+ offset = $area.offset();
+
+ // Initial mode (reads, and then maybe writes)
+ updateAreaMode();
- $( window ).on( 'scroll', updateAreaMode );
+ // Once we have the offset for where it would normally render, set the
+ // initial state of the (currently empty) notification area to be hidden.
+ $area.css( 'display', 'none' );
- // Initial mode
- updateAreaMode();
+ $( window ).on( 'scroll', updateAreaMode );
+
+ // Handle pre-ready queue.
+ isPageReady = true;
+ while ( preReadyNotifQueue.length ) {
+ notif = preReadyNotifQueue.shift();
+ notif.start();
+ }
+ } );
}
/**
autoHideLimit: 3
};
- $( function () {
- var notif;
-
- init();
-
- // Handle pre-ready queue.
- isPageReady = true;
- while ( preReadyNotifQueue.length ) {
- notif = preReadyNotifQueue.shift();
- notif.start();
- }
- } );
+ $( init );
mw.notification = notification;