mediawiki-extensions-Visual.../modules/ve-mw/ce/nodes/ve.ce.MWBlockImageNode.js
Moriel Schottlender e8205a7133 Adding alternate text to media edit dialog
Adding an option to add or edit alt text to images in the media edit
dialog.

Bug: 38129
Change-Id: I6d339781822175c40c66a4689ec6e1a873cb081d
2014-02-05 20:56:30 +00:00

325 lines
8.3 KiB
JavaScript

/*!
* VisualEditor ContentEditable MWBlockImageNode class.
*
* @copyright 2011-2014 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* ContentEditable MediaWiki image node.
*
* @class
* @extends ve.ce.BranchNode
* @mixins ve.ce.MWImageNode
*
* @constructor
* @param {ve.dm.MWBlockImageNode} model Model to observe
* @param {Object} [config] Configuration options
*/
ve.ce.MWBlockImageNode = function VeCeMWBlockImageNode( model, config ) {
var type, align;
// Parent constructor
ve.ce.BranchNode.call( this, model, config );
type = this.model.getAttribute( 'type' );
align = this.model.getAttribute( 'align' );
// Properties
this.captionVisible = false;
this.typeToRdfa = this.getTypeToRdfa();
// DOM Hierarchy for BlockImageNode:
// <div> this.$element
// <figure> this.$figure (ve-ce-mwBlockImageNode-type (thumb) (tright/tleft/etc))
// <a> this.$a
// <img> this.$image (thumbimage)
// <figcaption> this.caption.view.$element (thumbcaption)
// Build DOM:
this.$a = this.$( '<a>' )
.addClass( 'image' )
.attr( 'href', this.getResolvedAttribute( 'href' ) );
this.$image = this.$( '<img>' )
.attr( 'src', this.getResolvedAttribute( 'src' ) )
.appendTo( this.$a );
this.$figure = this.$( '<figure>' )
.appendTo( this.$element )
.append( this.$a )
.addClass( 've-ce-mwBlockImageNode-type-' + type )
// 'typeof' should appear with the proper Parsoid-generated
// type. The model deals with converting it
.attr( 'typeof', this.typeToRdfa[ type ] );
this.updateCaption();
this.updateSize();
// Mixin constructors
ve.ce.MWImageNode.call( this, this.$figure, this.$image );
// Events
this.model.connect( this, { 'attributeChange': 'onAttributeChange' } );
};
/* Inheritance */
OO.inheritClass( ve.ce.MWBlockImageNode, ve.ce.BranchNode );
// Need to mixin base class as well
OO.mixinClass( ve.ce.MWBlockImageNode, ve.ce.GeneratedContentNode );
OO.mixinClass( ve.ce.MWBlockImageNode, ve.ce.MWImageNode );
/* Static Properties */
ve.ce.MWBlockImageNode.static.name = 'mwBlockImage';
ve.ce.MWBlockImageNode.static.tagName = 'div';
ve.ce.MWBlockImageNode.static.renderHtmlAttributes = false;
ve.ce.MWBlockImageNode.static.transition = false;
ve.ce.MWBlockImageNode.static.cssClasses = {
'default': {
'left': 'mw-halign-left',
'right': 'mw-halign-right',
'center': 'mw-halign-center',
'none': 'mw-halign-none'
},
'none': {
'left': 'mw-halign-left',
'right': 'mw-halign-right',
'center': 'mw-halign-center',
'none': 'mw-halign-none'
}
};
/* Methods */
/**
* Set up an object that converts from the type to rdfa, based
* on the rdfaToType object in the model.
* @returns {Object.<string,string>} A type to Rdfa conversion object
*/
ve.ce.MWBlockImageNode.prototype.getTypeToRdfa = function () {
var rdfa, obj = {};
for ( rdfa in this.model.constructor.static.rdfaToType ) {
obj[ this.model.constructor.static.rdfaToType[rdfa] ] = rdfa;
}
return obj;
};
/**
* Update the caption based on the current model state
*/
ve.ce.MWBlockImageNode.prototype.updateCaption = function () {
var model, view,
type = this.model.getAttribute( 'type' );
this.captionVisible = type !== 'none' && type !== 'frameless' && this.model.children.length === 1;
if ( this.captionVisible ) {
// Only create a caption if we need it
if ( !this.$caption ) {
model = this.model.children[0];
view = ve.ce.nodeFactory.create( model.getType(), model );
model.connect( this, { 'update': 'onModelUpdate' } );
this.children.push( view );
view.attach( this );
if ( this.live !== view.isLive() ) {
view.setLive( this.live );
}
this.$caption = view.$element;
this.$figure.append( this.$caption );
}
}
if ( this.$caption ) {
this.$caption.toggle( this.captionVisible );
}
};
/**
* Update CSS classes based on alignment and type
*
* @param {string} [oldAlign] The old alignment, for removing classes
*/
ve.ce.MWBlockImageNode.prototype.updateClasses = function ( oldAlign ) {
var alignClass,
align = this.model.getAttribute( 'align' ),
type = this.model.getAttribute( 'type' );
if ( oldAlign && oldAlign !== align ) {
// Remove previous alignment
this.$figure
.removeClass( this.getCssClass( 'none', oldAlign ) )
.removeClass( this.getCssClass( 'default', oldAlign ) );
}
if ( type !== 'none' && type !== 'frameless' ) {
alignClass = this.getCssClass( 'default', align );
this.$image.addClass( 've-ce-mwBlockImageNode-thumbimage' );
this.$figure.addClass( 've-ce-mwBlockImageNode-borderwrap' );
} else {
alignClass = this.getCssClass( 'none', align );
this.$image.removeClass( 've-ce-mwBlockImageNode-thumbimage' );
this.$figure.removeClass( 've-ce-mwBlockImageNode-borderwrap' );
}
this.$figure.addClass( alignClass );
switch ( alignClass ) {
case 'mw-halign-right':
this.showHandles( ['sw'] );
break;
case 'mw-halign-left':
this.showHandles( ['se'] );
break;
case 'mw-halign-center':
this.showHandles( ['sw', 'se'] );
break;
default:
this.showHandles();
break;
}
};
/**
* Redraw the image and its wrappers at the specified dimensions
*
* The current dimensions from the model are used if none are specified.
*
* @param {Object} [dimensions] Dimension object containing width & height
*/
ve.ce.MWBlockImageNode.prototype.updateSize = function ( dimensions ) {
if ( !dimensions ) {
dimensions = {
'width': this.model.getAttribute( 'width' ),
'height': this.model.getAttribute( 'height' )
};
}
this.$image.css( dimensions );
this.$figure.css( {
// If we have a border then the width is increased by 2
'width': dimensions.width + ( this.captionVisible ? 2 : 0 ),
'height': this.captionVisible ? 'auto' : dimensions.height
} );
};
/**
* Get the right CSS class to use for alignment
*
* @param {string} type 'none' or 'default'
* @param {string} alignment 'left', 'right', 'center', 'none' or 'default'
*/
ve.ce.MWBlockImageNode.prototype.getCssClass = function ( type, alignment ) {
// TODO use this.model.getAttribute( 'type' ) etc., see bug 52065
// Default is different between RTL and LTR wikis:
if ( type === 'default' && alignment === 'default' ) {
if ( this.$element.css( 'direction' ) === 'rtl' ) {
return 'mw-halign-left';
} else {
return 'mw-halign-right';
}
} else {
return this.constructor.static.cssClasses[type][alignment];
}
};
/**
* Override the default onSetup to add direction-dependent
* classes to the image thumbnail.
*
* @method
*/
ve.ce.MWBlockImageNode.prototype.onSetup = function () {
// Parent method
ve.ce.BranchNode.prototype.onSetup.call( this );
this.updateClasses();
};
/**
* Update the rendering of the 'align', src', 'width' and 'height' attributes
* when they change in the model.
*
* @method
* @param {string} key Attribute key
* @param {string} from Old value
* @param {string} to New value
* @fires setup
*/
ve.ce.MWBlockImageNode.prototype.onAttributeChange = function ( key, from, to ) {
if ( key === 'height' || key === 'width' ) {
to = parseInt( to, 10 );
}
if ( from !== to ) {
switch ( key ) {
case 'align':
this.updateClasses( from );
break;
case 'src':
this.$image.attr( 'src', this.getResolvedAttribute( 'src' ) );
break;
case 'width':
this.updateSize( {
'width': to,
'height': this.model.getAttribute( 'height' )
} );
break;
case 'height':
this.updateSize( {
'width': this.model.getAttribute( 'width' ),
'height': to
} );
break;
case 'type':
this.$figure
.removeClass( 've-ce-mwBlockImageNode-type-' + from )
.addClass( 've-ce-mwBlockImageNode-type-' + to )
.attr( 'typeof', this.typeToRdfa[ to ] );
this.updateClasses();
this.updateCaption();
break;
// Other image attributes if they exist
case 'alt':
if ( !to ) {
this.$image.removeAttr( key );
} else {
this.$image.attr( key, to );
}
break;
}
}
};
/** */
ve.ce.MWBlockImageNode.prototype.onResizableResizing = function ( dimensions ) {
if ( !this.outline ) {
ve.ce.ResizableNode.prototype.onResizableResizing.call( this, dimensions );
this.updateSize( dimensions );
}
};
/** */
ve.ce.MWBlockImageNode.prototype.setupSlugs = function () {
// Intentionally empty
};
/** */
ve.ce.MWBlockImageNode.prototype.onSplice = function () {
// Intentionally empty
};
/* Registration */
ve.ce.nodeFactory.register( ve.ce.MWBlockImageNode );