mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-15 10:35:48 +00:00
c2defc9783
Objectives: * Move ve.ui.Element to ve.Element * Make CE nodes inherit from ve.Element Changes: ve.ui.Element.js, ve.Element.js * Move and rename * Move ve.ui.get$$ to ve.Element.static.get$$ * Add static getDocument and getWindow methods * Add instance getElementDocument and getElementWindow methods * Add getTagName method, which by default reads the static tagName property, but when overridden can return a tag name based on other factors *.php * Updated file link ve.ce.*Annotation.js, ve.ce.*Node.js, ve.ce.View.js, ve.ce.Document * Added config options pass through * Replaced passing elements through constructor with defining static tag names * Added getTagName overrides where needed that derive tag name from model * Refactore dom wrapper methods, now consistently using getTagName ve.ce.Surface.js * Removed static initialization (not needed) ve.dm.Model.js, ve.ui.Window.js * Added missing docs ve.ui.GroupElement.js, ve.ui.Layout.js, ve.ui.Widget.js, * Updated class name for elements ve.ui.Frame.js, ve.ui.LookupInputWidget.js * Updated location of get$$ ve.ui.js * Move get$$ to ve.Element ve.js * Add auto-init of static properties to mixinClass Change-Id: I39ae14966456903728e4d9e53f806ddce9ca2b70
141 lines
3.6 KiB
JavaScript
141 lines
3.6 KiB
JavaScript
/*!
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* VisualEditor UserInterface Frame class.
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*
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* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* UserInterface iframe abstraction.
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*
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* @class
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* @mixins ve.EventEmitter
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*
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* @constructor
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* @param {Object} [config] Config options
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* @cfg {string[]} [stylesheets] List of stylesheet file names, each relative to ve/ui/styles
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*/
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ve.ui.Frame = function VeUiFrame( config ) {
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// Mixin constructors
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ve.EventEmitter.call( this );
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// Properties
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this.initialized = false;
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this.config = config;
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this.$ = $( '<iframe>' );
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// Events
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this.$.load( ve.bind( this.onLoad, this ) );
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// Initialize
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this.$
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.addClass( 've-ui-frame' )
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.attr( { 'frameborder': 0, 'scrolling': 'no' } );
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};
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/* Inheritance */
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ve.mixinClass( ve.ui.Frame, ve.EventEmitter );
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/* Events */
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/**
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* @event initialize
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*/
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/* Methods */
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/**
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* Handle frame load events.
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*
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* Once the iframe's stylesheets are loaded, the `initialize` event will be emitted.
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*
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* Sounds simple right? Read on...
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*
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* When you create a dynamic iframe using open/write/close, the window.load event for the
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* iframe is triggered when you call close, and there's no further load event to indicate that
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* everything is actually loaded.
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*
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* By dynamically adding stylesheet links, we can detect when each link is loaded by testing if we
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* have access to each of their `sheet.cssRules` properties. Every 10ms we poll to see if we have
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* access to the style's `sheet.cssRules` property yet.
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*
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* However, because of security issues, we never have such access if the stylesheet came from a
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* different site. Thus, we are left with linking to the stylesheets through a style element with
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* multiple `@import` statements - which ends up being simpler anyway. Since we created that style,
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* we always have access, and its contents are only available when everything is done loading.
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*
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* @emits initialize
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*/
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ve.ui.Frame.prototype.onLoad = function () {
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var interval, rules,
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win = this.$.prop( 'contentWindow' ),
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doc = win.document,
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style = doc.createElement( 'style' ),
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initialize = ve.bind( function () {
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this.initialized = true;
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this.emit( 'initialize' );
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}, this );
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// Initialize contents
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doc.open();
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doc.write(
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'<!doctype html>' +
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'<html>' +
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'<body style="padding:0;margin:0;">' +
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'<div class="ve-ui-frame-content"></div>' +
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'</body>' +
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'</html>'
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);
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doc.close();
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// Import all stylesheets
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style.textContent = '@import "' + this.config.stylesheets.join( '";\n@import "' ) + '";';
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doc.body.appendChild( style );
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// Poll for access to stylesheet content
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interval = setInterval( ve.bind( function () {
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try {
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// MAGIC: only accessible when the stylesheet is loaded
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rules = style.sheet.cssRules;
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} catch ( e ) {
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// Try again in 10ms
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return;
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}
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// If that didn't throw an exception, we're done loading
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clearInterval( interval );
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// Protect against IE running interval one extra time after clearing
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if ( !this.initialized ) {
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initialize();
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}
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}, this ), 10 );
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// Properties
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this.$$ = ve.Element.static.get$$( doc, this );
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this.$content = this.$$( '.ve-ui-frame-content' );
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};
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/**
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* @param {Function} callback
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*/
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ve.ui.Frame.prototype.run = function ( callback ) {
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if ( this.initialized ) {
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callback();
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} else {
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this.once( 'initialize', callback );
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}
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};
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/**
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* Sets the size of the frame.
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*
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* @method
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* @param {number} width Frame width in pixels
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* @param {number} height Frame height in pixels
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* @chainable
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*/
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ve.ui.Frame.prototype.setSize = function ( width, height ) {
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this.$.css( { 'width': width, 'height': height } );
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return this;
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};
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