mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-18 19:55:55 +00:00
d3b0d94d27
They were incorrectly showing up in generated documentation as instance methods. Change-Id: I3668311d9e6bc25d63a1f49cc7a1abe4f6f350aa
200 lines
4.4 KiB
JavaScript
200 lines
4.4 KiB
JavaScript
/*!
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* VisualEditor UserInterface Element 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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* Creates an ve.Element object.
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*
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* @class
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* @abstract
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*
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* @constructor
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* @param {Object} [config] Config options
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* @cfg {Function} [$$] jQuery for the frame the widget is in
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*/
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ve.Element = function VeElement( config ) {
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// Initialize config
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config = config || {};
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// Properties
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this.$$ = config.$$ || ve.Element.get$$( document );
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this.$ = this.$$( this.$$.context.createElement( this.getTagName() ) );
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};
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/* Static Properties */
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/**
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* @static
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* @property
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* @inheritable
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*/
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ve.Element.static = {};
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/**
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* HTML tag name.
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*
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* This may be ignored if getTagName is overridden.
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*
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* @static
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* @property {string}
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* @inheritable
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*/
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ve.Element.static.tagName = 'div';
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/* Static Methods */
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/**
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* Gets a jQuery function within a specific document.
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*
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* @static
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* @param {jQuery|HTMLElement|HTMLDocument|Window} context Context to bind the function to
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* @param {ve.ui.Frame} [frame] Frame of the document context
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* @returns {Function} Bound jQuery function
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*/
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ve.Element.get$$ = function ( context, frame ) {
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function wrapper( selector ) {
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return $( selector, wrapper.context );
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}
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wrapper.context = this.getDocument( context );
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if ( frame ) {
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wrapper.frame = frame;
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}
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return wrapper;
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};
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/**
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* Get the document of an element.
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*
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* @static
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* @param {jQuery|HTMLElement|HTMLDocument|Window} context Context to bind the function to
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* @returns {HTMLDocument} Document object
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* @throws {Error} If context is invalid
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*/
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ve.Element.getDocument = function ( context ) {
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var doc =
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// jQuery - selections created "offscreen" won't have a context, so .context isn't reliable
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( context[0] && context[0].ownerDocument ) ||
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// Empty jQuery selections might have a context
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context.context ||
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// HTMLElement
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context.ownerDocument ||
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// Window
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context.document ||
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// HTMLDocument
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( context.nodeType === 9 && context );
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if ( doc ) {
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return doc;
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}
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throw new Error( 'Invalid context' );
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};
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/**
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* Get the window of an element or document.
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*
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* @static
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* @param {jQuery|HTMLElement|HTMLDocument|Window} context Context to bind the function to
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* @returns {Window} Window object
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*/
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ve.Element.getWindow = function ( context ) {
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var doc = this.getDocument( context );
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return doc.parentWindow || doc.defaultView;
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};
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/**
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* Get the offset between two frames.
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*
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* TODO: Make this function not use recursion.
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*
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* @static
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* @param {Window} from Window of the child frame
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* @param {Window} [to=window] Window of the parent frame
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* @param {Object} [offset] Offset to start with, used internally
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* @returns {Object} Offset object, containing left and top properties
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*/
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ve.Element.getFrameOffset = function ( from, to, offset ) {
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var i, len, frames, frame, rect;
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if ( !to ) {
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to = window;
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}
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if ( !offset ) {
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offset = { 'top': 0, 'left': 0 };
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}
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if ( from.parent === from ) {
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return offset;
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}
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// Get iframe element
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frames = from.parent.document.getElementsByTagName( 'iframe' );
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for ( i = 0, len = frames.length; i < len; i++ ) {
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if ( frames[i].contentWindow === from ) {
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frame = frames[i];
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break;
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}
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}
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// Recursively accumulate offset values
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if ( frame ) {
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rect = frame.getBoundingClientRect();
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offset.left += rect.left;
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offset.top += rect.top;
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if ( from !== to ) {
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this.getFrameOffset( from.parent, offset );
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}
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}
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return offset;
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};
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/**
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* Get the offset between two elements.
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*
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* @static
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* @param {jQuery} $from
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* @param {jQuery} $to
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* @returns {Object} Translated position coordinates, containing top and left properties
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*/
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ve.Element.getRelativePosition = function ( $from, $to ) {
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var from = $from.offset(),
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to = $to.offset();
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return { 'top': from.top - to.top, 'left': from.left - to.left };
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};
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/* Methods */
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/**
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* Get the HTML tag name.
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*
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* Override this method to base the result on instance information.
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*
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* @returns {string} HTML tag name
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*/
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ve.Element.prototype.getTagName = function () {
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return this.constructor.static.tagName;
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};
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/**
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* Get the DOM document.
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*
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* @returns {HTMLDocument} Document object
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*/
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ve.Element.prototype.getElementDocument = function () {
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return ve.Element.getDocument( this.$ );
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};
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/**
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* Get the DOM window.
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*
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* @returns {Window} Window object
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*/
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ve.Element.prototype.getElementWindow = function () {
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return ve.Element.getWindow( this.$ );
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};
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