mediawiki-extensions-Visual.../modules/ve/ce/ve.ce.View.js
Catrope 2eb77c1298 Add ve.ce.View as a common base class for ce.Node and ce.Annotation
Just like ve.dm.Model is a common base class for dm.Node, dm.Annotation
and dm.MetaItem.

ce.View abstracts the this.model and this.$ behavior, including liveness,
whitelisted HTML attribute rendering and adding a back reference in
.data(). The back reference has been renamed from .data( 'node' ) to
the more generic .data( 'view' ).

At this point this means ce.Annotation is just a shell around ce.View
(except where it defaults to a span rather than a div), but that could
change in the future.

Change-Id: I0eef5b80718e0b0fcd3f8bba096b452f0bb680d0
2013-04-09 12:05:05 -07:00

107 lines
2.6 KiB
JavaScript

/*!
* VisualEditor ContentEditable View class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* Generic base class for CE views.
*
* @abstract
* @mixins ve.EventEmitter
*
* @constructor
* @param {ve.dm.Model} model Model to observe
* @param {jQuery} [$element] Element to use as a container
*/
ve.ce.View = function VeCeView( model, $element ) {
// Parent constructor
ve.EventEmitter.call( this );
// Properties
this.model = model;
this.$ = $element || $( '<div>' );
this.live = false;
// Initialization
this.$.data( 'view', this );
ve.setDomAttributes(
this.$[0],
this.model.getAttributes( 'html/0/' ),
this.constructor.static.domAttributeWhitelist
);
};
/* Inheritance */
ve.mixinClass( ve.ce.View, ve.EventEmitter );
/* Events */
/**
* @event live
*/
/* Static Members */
ve.ce.View.static = {};
/**
* Allowed attributes for DOM elements.
*
* This list includes attributes that are generally safe to include in HTML loaded from a
* foreign source and displaying it inside the browser. It doesn't include any event attributes,
* for instance, which would allow arbitrary JavaScript execution. This alone is not enough to
* make HTML safe to display, but it helps.
*
* TODO: Rather than use a single global list, set these on a per-view basis to something that makes
* sense for that view in particular.
*
* @static
* @property static.domAttributeWhitelist
* @inheritable
*/
ve.ce.View.static.domAttributeWhitelist = [
'abbr', 'about', 'align', 'alt', 'axis', 'bgcolor', 'border', 'cellpadding', 'cellspacing',
'char', 'charoff', 'cite', 'class', 'clear', 'color', 'colspan', 'datatype', 'datetime',
'dir', 'face', 'frame', 'headers', 'height', 'href', 'id', 'itemid', 'itemprop', 'itemref',
'itemscope', 'itemtype', 'lang', 'noshade', 'nowrap', 'property', 'rbspan', 'rel',
'resource', 'rev', 'rowspan', 'rules', 'scope', 'size', 'span', 'src', 'start', 'style',
'summary', 'title', 'type', 'typeof', 'valign', 'value', 'width'
];
/* Methods */
/**
* Get the model the view observes.
*
* @method
* @returns {ve.dm.Node} Model the view observes
*/
ve.ce.View.prototype.getModel = function () {
return this.model;
};
/**
* Check if the view is attached to the live DOM.
*
* @method
* @returns {boolean} View is attached to the live DOM
*/
ve.ce.View.prototype.isLive = function () {
return this.live;
};
/**
* Set live state.
*
* @method
* @param {boolean} live The view has been attached to the live DOM (use false on detach)
* @emits live
*/
ve.ce.View.prototype.setLive = function ( live ) {
this.live = live;
this.emit( 'live' );
};