Merge "Add config for serving main Page from the domain root"
[lhc/web/wiklou.git] / resources / src / mediawiki.page.gallery.slideshow.js
index 71b3dfe..a36e409 100644 (file)
@@ -24,7 +24,7 @@
                this.drawCarousel();
                this.setSizeRequirement();
                this.toggleThumbnails( !!this.$gallery.attr( 'data-showthumbnails' ) );
-               this.showCurrentImage();
+               this.showCurrentImage( true );
 
                // Events
                $( window ).on(
         * @property {jQuery} $img The `<img>` element that'll display the current image.
         */
 
-       /**
-        * @property {jQuery} $imgLink The `<a>` element that links to the image's File page.
-        */
-
        /**
         * @property {jQuery} $imgCaption The `<p>` element that holds the image caption.
         */
         * Draws the carousel and the interface around it.
         */
        mw.GallerySlideshow.prototype.drawCarousel = function () {
-               var next, prev, toggle, interfaceElements, carouselStack;
+               var nextButton, prevButton, toggleButton, interfaceElements, carouselStack;
 
                this.$carousel = $( '<li>' ).addClass( 'gallerycarousel' );
 
                // Buttons for the interface
-               prev = new OO.ui.ButtonWidget( {
+               prevButton = new OO.ui.ButtonWidget( {
                        framed: false,
                        icon: 'previous'
-               } ).on( 'click', this.prevImage.bind( this ) );
+               } ).connect( this, { click: 'prevImage' } );
 
-               next = new OO.ui.ButtonWidget( {
+               nextButton = new OO.ui.ButtonWidget( {
                        framed: false,
                        icon: 'next'
-               } ).on( 'click', this.nextImage.bind( this ) );
+               } ).connect( this, { click: 'nextImage' } );
 
-               toggle = new OO.ui.ButtonWidget( {
+               toggleButton = new OO.ui.ButtonWidget( {
                        framed: false,
                        icon: 'imageGallery',
                        title: mw.msg( 'gallery-slideshow-toggle' )
-               } ).on( 'click', this.toggleThumbnails.bind( this ) );
+               } ).connect( this, { click: 'toggleThumbnails' } );
 
                interfaceElements = new OO.ui.PanelLayout( {
                        expanded: false,
                        classes: [ 'mw-gallery-slideshow-buttons' ],
                        $content: $( '<div>' ).append(
-                               prev.$element,
-                               toggle.$element,
-                               next.$element
+                               prevButton.$element,
+                               toggleButton.$element,
+                               nextButton.$element
                        )
                } );
                this.$interface = interfaceElements.$element;
 
                // Containers for the current image, caption etc.
-               this.$img = $( '<img>' );
-               this.$imgLink = $( '<a>' ).append( this.$img );
                this.$imgCaption = $( '<p>' ).attr( 'class', 'mw-gallery-slideshow-caption' );
                this.$imgContainer = $( '<div>' )
-                       .attr( 'class', 'mw-gallery-slideshow-img-container' )
-                       .append( this.$imgLink );
+                       .attr( 'class', 'mw-gallery-slideshow-img-container' );
 
                carouselStack = new OO.ui.StackLayout( {
                        continuous: true,
         * Sets the height and width of {@link #$img} based on the
         * proportion of the image and the values generated by
         * {@link #setSizeRequirement}.
-        *
-        * @return {boolean} Whether or not the image was sized.
         */
        mw.GallerySlideshow.prototype.setImageSize = function () {
                if ( this.$img === undefined || this.$thumbnail === undefined ) {
-                       return false;
+                       return;
                }
 
                // Reset height and width
 
                // Make the image smaller in case the current image
                // size is larger than the original file size.
-               this.getImageInfo( this.$thumbnail ).done( function ( info ) {
+               this.getImageInfo( this.$thumbnail ).then( function ( info ) {
                        // NOTE: There will be a jump when resizing the window
                        // because the cache is cleared and this a new network request.
                        if (
                                info.thumbwidth < this.$img.width() ||
                                info.thumbheight < this.$img.height()
                        ) {
-                               this.$img.attr( 'width', info.thumbwidth + 'px' );
-                               this.$img.attr( 'height', info.thumbheight + 'px' );
+                               this.$img.attr( {
+                                       width: info.thumbwidth + 'px',
+                                       height: info.thumbheight + 'px'
+                               } );
                        }
                }.bind( this ) );
-
-               return true;
        };
 
        /**
         * Displays the image set as {@link #$currentImage} in the carousel.
+        *
+        * @param {boolean} init Image being show during gallery init (i.e. first image)
         */
-       mw.GallerySlideshow.prototype.showCurrentImage = function () {
-               var imageLi = this.getCurrentImage(),
-                       caption = imageLi.find( '.gallerytext' );
+       mw.GallerySlideshow.prototype.showCurrentImage = function ( init ) {
+               var $thumbnail, $imgLink,
+                       $imageLi = this.getCurrentImage(),
+                       $caption = $imageLi.find( '.gallerytext' );
 
                // The order of the following is important for size calculations
                // 1. Highlight current thumbnail
                this.$gallery
                        .find( '.gallerybox.slideshow-current' )
                        .removeClass( 'slideshow-current' );
-               imageLi.addClass( 'slideshow-current' );
+               $imageLi.addClass( 'slideshow-current' );
+
+               this.$thumbnail = $imageLi.find( 'img' );
+               if ( this.$thumbnail.length ) {
+                       // 2. Create and show thumbnail
+                       this.$img = $( '<img>' ).attr( {
+                               src: this.$thumbnail.attr( 'src' ),
+                               alt: this.$thumbnail.attr( 'alt' )
+                       } );
+                       // 'image' class required for detection by MultimediaViewer
+                       $imgLink = $( '<a>' ).addClass( 'image' )
+                               .attr( 'href', $imageLi.find( 'a' ).eq( 0 ).attr( 'href' ) )
+                               .append( this.$img );
 
-               // 2. Show thumbnail
-               this.$thumbnail = imageLi.find( 'img' );
-               this.$img.attr( 'src', this.$thumbnail.attr( 'src' ) );
-               this.$img.attr( 'alt', this.$thumbnail.attr( 'alt' ) );
-               this.$imgLink.attr( 'href', imageLi.find( 'a' ).eq( 0 ).attr( 'href' ) );
+                       this.$imgContainer.empty().append( $imgLink );
+               } else {
+                       // 2b. No image found (e.g. file doesn't exist)
+                       this.$imgContainer.text( $imageLi.find( '.thumb' ).text() );
+               }
 
                // 3. Copy caption
                this.$imgCaption
                        .empty()
-                       .append( caption.clone() );
+                       .append( $caption.clone() );
+
+               if ( !this.$thumbnail.length ) {
+                       return;
+               }
 
                // 4. Stretch thumbnail to correct size
                this.setImageSize();
 
+               $thumbnail = this.$thumbnail;
                // 5. Load image at the required size
-               this.loadImage( this.$thumbnail ).done( function ( info, $img ) {
+               this.loadImage( this.$thumbnail ).done( function ( info ) {
                        // Show this image to the user only if its still the current one
-                       if ( this.$thumbnail.attr( 'src' ) === $img.attr( 'src' ) ) {
+                       if ( this.$thumbnail.attr( 'src' ) === $thumbnail.attr( 'src' ) ) {
                                this.$img.attr( 'src', info.thumburl );
                                this.setImageSize();
+                               // Don't fire hook twice during init
+                               if ( !init ) {
+                                       mw.hook( 'wikipage.content' ).fire( this.$imgContainer );
+                               }
 
-                               // Keep the next image ready
+                               // Pre-fetch the next image
                                this.loadImage( this.getNextImage().find( 'img' ) );
                        }
+               }.bind( this ) ).fail( function () {
+                       // Image didn't load
+                       var title = mw.Title.newFromImg( this.$img );
+                       this.$imgContainer.text( title ? title.getMainText() : '' );
                }.bind( this ) );
        };
 
        /**
         * Loads the full image given the `<img>` element of the thumbnail.
         *
-        * @param {Object} $img
+        * @param {jQuery} $img
         * @return {jQuery.Promise} Resolves with the images URL and original
-        *   element once the image has loaded.
+        *  element once the image has loaded.
         */
        mw.GallerySlideshow.prototype.loadImage = function ( $img ) {
-               var img, d = $.Deferred();
-
-               this.getImageInfo( $img ).done( function ( info ) {
+               return this.getImageInfo( $img ).then( function ( info ) {
+                       var img, d = $.Deferred();
                        img = new Image();
                        img.src = info.thumburl;
                        img.onload = function () {
-                               d.resolve( info, $img );
+                               d.resolve( info );
                        };
                        img.onerror = function () {
                                d.reject();
                        };
-               } ).fail( function () {
-                       d.reject();
+                       return d.promise();
                } );
-
-               return d.promise();
        };
 
        /**