mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-15 18:39:52 +00:00
8b09dd7650
By removing the transaction listeners from surface fragments we no longer have to make sure they are always manually destroyed. In order to retain the functionality of having fragments update with transactions elsewhere we keep a pointer to a place in the new complete history stack in the surface. The complete history stack records all transactions, even undone ones. Whenever getRange is called we replay all transactions in the complete history (in the correct order) since the fragment was last updated. Also in this commit: * Updated Format/IndentationAction to test undo(). This increases coverage of surface fragment behaviour. * .range is always accessed by .getRange now, although as an optimisation we can use the noCopy mode when we a sure the returned range will not be modified. * Added undo test to .update (previously .onTransact) Bug: 47343 Change-Id: I9e9818da1baa8319a3002f6d74fd1aad6732a8f5
1434 lines
39 KiB
JavaScript
1434 lines
39 KiB
JavaScript
/*!
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* VisualEditor ContentEditable Surface 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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/*global rangy */
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/**
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* ContentEditable surface.
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*
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* @class
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* @extends ve.EventEmitter
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* @constructor
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* @param {jQuery} $container
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* @param {ve.dm.Surface} model Surface model to observe
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* @param {ve.Surface} surface Surface to view
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*/
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ve.ce.Surface = function VeCeSurface( $container, model, surface ) {
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// Parent constructor
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ve.EventEmitter.call( this );
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// Properties
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this.surface = surface;
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this.inIme = false;
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this.model = model;
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this.documentView = new ve.ce.Document( model.getDocument(), this );
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this.surfaceObserver = new ve.ce.SurfaceObserver( this.documentView );
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this.selectionTimeout = null;
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this.$ = $container;
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this.$document = $( document );
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this.clipboard = {};
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this.renderingEnabled = true;
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this.dragging = false;
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this.relocating = false;
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this.selecting = false;
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this.$phantoms = $( '<div>' );
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this.$pasteTarget = $( '<div>' );
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this.pasting = false;
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this.clickHistory = [];
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this.focusedNode = null;
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// Events
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this.surfaceObserver.addListenerMethods(
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this, { 'contentChange': 'onContentChange', 'selectionChange': 'onSelectionChange' }
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);
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this.model.addListenerMethods(
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this, { 'change': 'onChange', 'lock': 'onLock', 'unlock': 'onUnlock' }
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);
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this.documentView.getDocumentNode().$.on( {
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'focus': ve.bind( this.documentOnFocus, this ),
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'blur': ve.bind( this.documentOnBlur, this )
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} );
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this.$.on( {
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'cut': ve.bind( this.onCut, this ),
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'copy': ve.bind( this.onCopy, this ),
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'paste': ve.bind( this.onPaste, this ),
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'dragover': ve.bind( this.onDocumentDragOver, this ),
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'drop': ve.bind( this.onDocumentDrop, this )
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} );
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if ( $.browser.msie ) {
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this.$.on( 'beforepaste', ve.bind( this.onPaste, this ) );
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}
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// Initialization
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if ( !rangy.initialized ) {
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rangy.init();
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}
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this.$phantoms.addClass( 've-ce-surface-phantoms' );
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this.$pasteTarget.addClass( 've-ce-surface-paste' ).prop( 'contenteditable', true );
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this.$.append( this.documentView.getDocumentNode().$, this.$phantoms, this.$pasteTarget );
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};
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/* Inheritance */
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ve.inheritClass( ve.ce.Surface, ve.EventEmitter );
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/* Events */
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/**
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* @event selectionStart
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*/
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/**
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* @event selectionEnd
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*/
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/**
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* @event relocationStart
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*/
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/**
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* @event relocationEnd
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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.ce.Surface.static = {};
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/**
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* Phantom element template.
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*
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* @static
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* @property {jQuery}
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*/
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ve.ce.Surface.static.$phantomTemplate = $( '<div>' )
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.addClass( 've-ce-surface-phantom' )
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.attr( {
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'title': ve.msg( 'visualeditor-aliennode-tooltip' ),
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'draggable': false
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} );
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/**
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* Pattern matching "normal" characters which we can let the browser handle natively.
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*
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* @static
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* @property {RegExp}
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*/
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ve.ce.Surface.static.textPattern = new RegExp(
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'[a-zA-Z\\-_’\'‘ÆÐƎƏƐƔIJŊŒẞÞǷȜæðǝəɛɣijŋœĸſßþƿȝĄƁÇĐƊĘĦĮƘŁØƠŞȘŢȚŦŲƯY̨Ƴąɓçđɗęħįƙłøơşșţțŧųưy̨ƴÁÀÂÄ' +
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'ǍĂĀÃÅǺĄÆǼǢƁĆĊĈČÇĎḌĐƊÐÉÈĖÊËĚĔĒĘẸƎƏƐĠĜǦĞĢƔáàâäǎăāãåǻąæǽǣɓćċĉčçďḍđɗðéèėêëěĕēęẹǝəɛġĝǧğģɣĤḤĦIÍÌİ' +
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'ÎÏǏĬĪĨĮỊIJĴĶƘĹĻŁĽĿʼNŃN̈ŇÑŅŊÓÒÔÖǑŎŌÕŐỌØǾƠŒĥḥħıíìiîïǐĭīĩįịijĵķƙĸĺļłľŀʼnńn̈ňñņŋóòôöǒŏōõőọøǿơœŔŘŖŚŜ' +
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'ŠŞȘṢẞŤŢṬŦÞÚÙÛÜǓŬŪŨŰŮŲỤƯẂẀŴẄǷÝỲŶŸȲỸƳŹŻŽẒŕřŗſśŝšşșṣßťţṭŧþúùûüǔŭūũűůųụưẃẁŵẅƿýỳŷÿȳỹƴźżžẓ]',
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'g'
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);
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/**
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* Get the coordinates of the selection anchor.
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*
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* @method
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* @static
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*/
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ve.ce.Surface.getSelectionRect = function () {
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if ( !rangy.initialized ) {
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rangy.init();
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}
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var rangySel = rangy.getSelection();
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return {
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start: rangySel.getStartDocumentPos(),
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end: rangySel.getEndDocumentPos()
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};
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};
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/* Methods */
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/*! Initialization */
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/**
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* Enable editing.
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*
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* @method
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*/
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ve.ce.Surface.prototype.enable = function () {
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this.documentView.getDocumentNode().enable();
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};
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/**
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* Disable editing.
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*
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* @method
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*/
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ve.ce.Surface.prototype.disable = function () {
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this.documentView.getDocumentNode().disable();
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};
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/**
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* Destroy the surface, removing all DOM elements.
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*
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* @method
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* @returns {ve.ui.Context} Context user interface
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*/
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ve.ce.Surface.prototype.destroy = function () {
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this.$.remove();
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};
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/*! Native Browser Events */
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/**
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* Handle document focus events.
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*
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* @method
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* @param {jQuery.Event} e Focus event
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*/
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ve.ce.Surface.prototype.documentOnFocus = function () {
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this.$document.off( '.ve-ce-Surface' );
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this.$document.on( {
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'keydown.ve-ce-Surface': ve.bind( this.onDocumentKeyDown, this ),
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'keyup.ve-ce-Surface': ve.bind( this.onDocumentKeyUp, this ),
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'keypress.ve-ce-Surface': ve.bind( this.onDocumentKeyPress, this ),
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'mousedown.ve-ce-Surface': ve.bind( this.onDocumentMouseDown, this ),
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'mouseup.ve-ce-Surface': ve.bind( this.onDocumentMouseUp, this ),
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'mousemove.ve-ce-Surface': ve.bind( this.onDocumentMouseMove, this ),
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'compositionstart.ve-ce-Surface': ve.bind( this.onDocumentCompositionStart, this ),
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'compositionend.ve-ce-Surface': ve.bind( this.onDocumentCompositionEnd, this )
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} );
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this.surfaceObserver.start( true );
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};
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/**
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* Handle document blur events.
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*
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* @method
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* @param {jQuery.Event} e Element blur event
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*/
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ve.ce.Surface.prototype.documentOnBlur = function () {
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this.$document.off( '.ve-ce-Surface' );
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this.surfaceObserver.stop( true );
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this.dragging = false;
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};
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/**
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* Handle document mouse down events.
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*
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* @method
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* @param {jQuery.Event} e Mouse down event
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*/
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ve.ce.Surface.prototype.onDocumentMouseDown = function ( e ) {
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// Remember the mouse is down
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this.dragging = true;
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// Old code to figure out if user clicked inside the document or not - leave it here for now
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// $( e.target ).closest( '.ve-ce-documentNode' ).length === 0
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if ( e.which === 1 ) {
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this.surfaceObserver.stop( true );
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}
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// Block / prevent triple click
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if ( this.getClickCount( e.originalEvent ) > 2 ) {
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e.preventDefault();
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}
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};
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/**
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* Handle document mouse up events.
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*
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* @method
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* @param {jQuery.Event} e Mouse up event
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* @emits selectionEnd
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*/
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ve.ce.Surface.prototype.onDocumentMouseUp = function ( e ) {
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this.surfaceObserver.start();
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if ( !e.shiftKey && this.selecting ) {
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this.emit( 'selectionEnd' );
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this.selecting = false;
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}
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this.dragging = false;
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};
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/**
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* Handle document mouse move events.
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*
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* @method
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* @param {jQuery.Event} e Mouse move event
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* @emits selectionStart
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*/
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ve.ce.Surface.prototype.onDocumentMouseMove = function () {
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// Detect beginning of selection by moving mouse while dragging
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if ( this.dragging && !this.selecting ) {
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this.selecting = true;
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this.emit( 'selectionStart' );
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}
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};
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/**
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* Handle document dragover events.
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*
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* Limits native drag and drop behavior.
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*
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* @method
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* @param {jQuery.Event} e Drag over event
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*/
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ve.ce.Surface.prototype.onDocumentDragOver = function () {
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if ( !this.relocating ) {
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return false;
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} else if ( this.selecting ) {
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this.emit( 'selectionEnd' );
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this.selecting = false;
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this.dragging = false;
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}
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};
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/**
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* Handle document drop events.
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*
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* Limits native drag and drop behavior.
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*
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* TODO: Look into using drag and drop data transfer to embed the dragged element's original range
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* (for dragging within one document) and serialized linear model data (for dragging between
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* multiple documents) and use a special mimetype, like application-x/VisualEditor, to allow
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* dragover and drop events on the surface, removing the need to give the surface explicit
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* instructions to allow and prevent dragging and dropping a certain node.
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*
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* @method
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* @param {jQuery.Event} e Drag drop event
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*/
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ve.ce.Surface.prototype.onDocumentDrop = function ( e ) {
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var node = this.relocating;
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if ( node ) {
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// Process drop operation after native drop has been prevented below
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setTimeout( ve.bind( function () {
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var dropPoint, nodeData, originFragment, targetFragment,
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nodeRange = node.getModel().getOuterRange();
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// Get a fragment from the drop point
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dropPoint = rangy.positionFromPoint( e.originalEvent.pageX, e.originalEvent.pageY );
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if ( !dropPoint ) {
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// Getting position from point supported
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return false;
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}
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targetFragment = this.model.getFragment(
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new ve.Range( ve.ce.getOffset( dropPoint.node, dropPoint.offset ) ), false
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);
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// Get a fragment and data of the node being dragged
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originFragment = this.model.getFragment( nodeRange, false );
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nodeData = originFragment.getData();
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// Remove node from old location (auto-updates targetFragment's range)
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originFragment.removeContent();
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// Re-insert node at new location and re-select it
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targetFragment.insertContent( nodeData );
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targetFragment.adjustRange( -nodeData.length, 0 ).select();
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}, this ) );
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}
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return false;
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};
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/**
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* Handle document key down events.
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*
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* @method
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* @param {jQuery.Event} e Key down event
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* @emits selectionStart
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*/
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ve.ce.Surface.prototype.onDocumentKeyDown = function ( e ) {
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// Ignore keydowns while in IME mode but do not preventDefault them.
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if ( this.inIme === true ) {
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return;
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}
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// IME
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if ( $.browser.msie === true && e.which === 229 ) {
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this.inIme = true;
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this.handleInsertion();
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return;
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}
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if ( ve.ce.isArrowKey( e.keyCode ) ) {
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// Detect start of selecting using shift+arrow keys.
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if ( !this.dragging && !this.selecting && e.shiftKey ) {
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this.selecting = true;
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this.emit( 'selectionStart' );
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}
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if ( ve.ce.isLeftOrRightArrowKey( e.keyCode ) ) {
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this.handleLeftOrRightArrowKey( e );
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} else {
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this.handleUpOrDownArrowKey( e );
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}
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} else if ( e.keyCode === ve.Keys.DOM_VK_RETURN ) {
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e.preventDefault();
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this.handleEnter( e );
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} else if ( e.keyCode === ve.Keys.DOM_VK_BACK_SPACE ) {
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this.handleDelete( e, true );
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this.surfaceObserver.stop( true );
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this.surfaceObserver.start();
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} else if ( e.keyCode === ve.Keys.DOM_VK_DELETE ) {
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this.handleDelete( e, false );
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this.surfaceObserver.stop( true );
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this.surfaceObserver.start();
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} else {
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// Execute key command if available
|
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this.surfaceObserver.stop( true );
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if ( this.surface.execute( new ve.Trigger( e ) ) ) {
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e.preventDefault();
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}
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this.surfaceObserver.start();
|
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}
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||
};
|
||
|
||
/**
|
||
* Handle document key press events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Key press event
|
||
*/
|
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ve.ce.Surface.prototype.onDocumentKeyPress = function ( e ) {
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var selection, prevNode, documentModel = this.model.getDocument();
|
||
|
||
// Prevent IE from editing Aliens/Entities
|
||
if ( $.browser.msie === true ) {
|
||
selection = this.model.getSelection();
|
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if ( selection.start !== 0 && selection.isCollapsed() ) {
|
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prevNode = documentModel.getDocumentNode().getNodeFromOffset( selection.start - 1 );
|
||
if (
|
||
!this.documentView.getSlugAtOffset( selection.start ) &&
|
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prevNode.isContent() &&
|
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documentModel.data.isCloseElementData( selection.start - 1 )
|
||
) {
|
||
this.model.change( null, new ve.Range( selection.start ) );
|
||
}
|
||
}
|
||
}
|
||
|
||
if ( ve.ce.isShortcutKey( e ) ||
|
||
e.which === ve.Keys.DOM_VK_RETURN ||
|
||
e.which === ve.Keys.DOM_VK_BACK_SPACE ||
|
||
e.which === ve.Keys.DOM_VK_UNDEFINED ) {
|
||
return;
|
||
}
|
||
this.handleInsertion();
|
||
setTimeout( ve.bind( function () {
|
||
this.surfaceObserver.start();
|
||
}, this ) );
|
||
};
|
||
|
||
/**
|
||
* Handle document key up events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Key up event
|
||
* @emits selectionEnd
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentKeyUp = function ( e ) {
|
||
// Detect end of selecting by letting go of shift
|
||
if ( !this.dragging && this.selecting && e.keyCode === 16 ) {
|
||
this.selecting = false;
|
||
this.emit( 'selectionEnd' );
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle cut events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Cut event
|
||
*/
|
||
ve.ce.Surface.prototype.onCut = function ( e ) {
|
||
this.surfaceObserver.stop();
|
||
this.onCopy( e );
|
||
setTimeout( ve.bind( function () {
|
||
var selection, tx;
|
||
|
||
// We don't like how browsers cut, so let's undo it and do it ourselves.
|
||
document.execCommand( 'undo', false, false );
|
||
selection = this.model.getSelection();
|
||
|
||
// Transact
|
||
tx = ve.dm.Transaction.newFromRemoval( this.documentView.model, selection );
|
||
|
||
this.model.change( tx, new ve.Range( selection.start ) );
|
||
this.surfaceObserver.clear();
|
||
this.surfaceObserver.start();
|
||
}, this ) );
|
||
};
|
||
|
||
/**
|
||
* Handle copy events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Copy event
|
||
*/
|
||
ve.ce.Surface.prototype.onCopy = function () {
|
||
var sel = rangy.getSelection(),
|
||
$frag = $( sel.getRangeAt(0).cloneContents() ),
|
||
slice = this.documentView.model.getSlice( this.model.getSelection() ),
|
||
key = '';
|
||
|
||
// Create key from text and element names
|
||
$frag.contents().each( function () {
|
||
key += this.textContent || this.nodeName;
|
||
} );
|
||
key = 've-' + key.replace( /\s/gm, '' );
|
||
|
||
// Set clipboard
|
||
this.clipboard[key] = slice;
|
||
};
|
||
|
||
/**
|
||
* Handle paste events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Paste event
|
||
*/
|
||
ve.ce.Surface.prototype.onPaste = function () {
|
||
// Prevent pasting until after we are done
|
||
if ( this.pasting ) {
|
||
return false;
|
||
}
|
||
this.pasting = true;
|
||
|
||
var tx, scrollTop,
|
||
$window = $( window ),
|
||
view = this,
|
||
selection = this.model.getSelection();
|
||
|
||
this.surfaceObserver.stop();
|
||
|
||
// Pasting into a range? Remove first.
|
||
if ( !rangy.getSelection().isCollapsed ) {
|
||
tx = ve.dm.Transaction.newFromRemoval( view.documentView.model, selection );
|
||
view.model.change( tx );
|
||
}
|
||
|
||
// Save scroll position and change focus to "offscreen" paste target
|
||
scrollTop = $window.scrollTop();
|
||
this.$pasteTarget.html( '' ).show().focus();
|
||
|
||
setTimeout( function () {
|
||
var pasteText, pasteData, tx,
|
||
key = '';
|
||
|
||
// Create key from text and element names
|
||
view.$pasteTarget.hide().contents().each( function () {
|
||
key += this.textContent || this.nodeName;
|
||
} );
|
||
key = 've-' + key.replace( /\s/gm, '' );
|
||
|
||
// Get linear model from clipboard or create array from unknown pasted content
|
||
if ( view.clipboard[key] ) {
|
||
pasteData = view.clipboard[key];
|
||
} else {
|
||
pasteText = view.$pasteTarget.text().replace( /\n/gm, '');
|
||
pasteData = new ve.dm.DocumentSlice( pasteText.split( '' ) );
|
||
}
|
||
|
||
// Transact
|
||
try {
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
view.documentView.model,
|
||
selection.start,
|
||
pasteData.getData()
|
||
);
|
||
} catch ( e ) {
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
view.documentView.model,
|
||
selection.start,
|
||
pasteData.getBalancedData()
|
||
);
|
||
}
|
||
|
||
// Restore focus and scroll position
|
||
view.documentView.documentNode.$.focus();
|
||
$window.scrollTop( scrollTop );
|
||
|
||
view.model.change( tx, tx.translateRange( selection ).truncate( 0 ) );
|
||
|
||
// Allow pasting again
|
||
view.pasting = false;
|
||
} );
|
||
};
|
||
|
||
/**
|
||
* Handle document composition start events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Composition start event
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentCompositionStart = function () {
|
||
if ( $.browser.msie === true ) {
|
||
return;
|
||
}
|
||
this.inIme = true;
|
||
this.handleInsertion();
|
||
};
|
||
|
||
/**
|
||
* Handle document composition end events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Composition end event
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentCompositionEnd = function () {
|
||
this.inIme = false;
|
||
this.surfaceObserver.start();
|
||
};
|
||
|
||
/*! Custom Events */
|
||
|
||
/**
|
||
* Handle change events.
|
||
*
|
||
* @see ve.dm.Surface#method-change
|
||
*
|
||
* @method
|
||
* @param {ve.dm.Transaction|null} transaction
|
||
* @param {ve.Range|undefined} selection
|
||
*/
|
||
ve.ce.Surface.prototype.onChange = function ( transaction, selection ) {
|
||
var start, end,
|
||
next = null,
|
||
previous = this.focusedNode;
|
||
|
||
if ( selection ) {
|
||
if ( this.isRenderingEnabled() ) {
|
||
this.showSelection( selection );
|
||
}
|
||
// Detect when only a single inline element is selected
|
||
if ( !selection.isCollapsed() ) {
|
||
start = this.documentView.getDocumentNode().getNodeFromOffset( selection.start + 1 );
|
||
if ( typeof start.setFocused === 'function' ) {
|
||
end = this.documentView.getDocumentNode().getNodeFromOffset( selection.end - 1 );
|
||
if ( start === end ) {
|
||
next = start;
|
||
}
|
||
}
|
||
}
|
||
// Update nodes if something changed
|
||
if ( previous !== next ) {
|
||
if ( previous ) {
|
||
previous.setFocused( false );
|
||
this.focusedNode = null;
|
||
}
|
||
if ( next ) {
|
||
next.setFocused( true );
|
||
this.focusedNode = start;
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle selection change events.
|
||
*
|
||
* @see ve.ce.SurfaceObserver#poll
|
||
*
|
||
* @method
|
||
* @param {ve.Range} oldRange
|
||
* @param {ve.Range} newRange
|
||
*/
|
||
ve.ce.Surface.prototype.onSelectionChange = function ( oldRange, newRange ) {
|
||
if ( oldRange && newRange.flip().equals( oldRange ) ) {
|
||
// Ignore when the newRange is just a flipped oldRange
|
||
return;
|
||
}
|
||
this.disableRendering();
|
||
this.model.change( null, newRange );
|
||
this.enableRendering();
|
||
};
|
||
|
||
/**
|
||
* Handle content change events.
|
||
*
|
||
* @see ve.ce.SurfaceObserver#poll
|
||
*
|
||
* @method
|
||
* @param {HTMLElement} node DOM node the change occured in
|
||
* @param {Object} previous Old data
|
||
* @param {Object} previous.text Old plain text content
|
||
* @param {Object} previous.hash Old DOM hash
|
||
* @param {ve.Range} previous.range Old selection
|
||
* @param {Object} next New data
|
||
* @param {Object} next.text New plain text content
|
||
* @param {Object} next.hash New DOM hash
|
||
* @param {ve.Range} next.range New selection
|
||
*/
|
||
ve.ce.Surface.prototype.onContentChange = function ( node, previous, next ) {
|
||
var data, range, len, annotations, offsetDiff, lengthDiff, sameLeadingAndTrailing,
|
||
previousStart, nextStart, newRange,
|
||
fromLeft = 0,
|
||
fromRight = 0,
|
||
nodeOffset = node.getModel().getOffset();
|
||
|
||
if ( previous.range && next.range ) {
|
||
offsetDiff = ( previous.range.isCollapsed() && next.range.isCollapsed() ) ?
|
||
next.range.start - previous.range.start : null;
|
||
lengthDiff = next.text.length - previous.text.length;
|
||
previousStart = previous.range.start - nodeOffset - 1;
|
||
nextStart = next.range.start - nodeOffset - 1;
|
||
sameLeadingAndTrailing = offsetDiff !== null && (
|
||
// TODO: rewrite to static method with tests
|
||
(
|
||
lengthDiff > 0 &&
|
||
previous.text.substring( 0, previousStart ) ===
|
||
next.text.substring( 0, previousStart ) &&
|
||
previous.text.substring( previousStart ) ===
|
||
next.text.substring( nextStart )
|
||
) ||
|
||
(
|
||
lengthDiff < 0 &&
|
||
previous.text.substring( 0, nextStart ) ===
|
||
next.text.substring( 0, nextStart ) &&
|
||
previous.text.substring( previousStart - lengthDiff + offsetDiff) ===
|
||
next.text.substring( nextStart )
|
||
)
|
||
);
|
||
|
||
// Simple insertion
|
||
if ( lengthDiff > 0 && offsetDiff === lengthDiff /* && sameLeadingAndTrailing */) {
|
||
data = next.text.substring(
|
||
previous.range.start - nodeOffset - 1,
|
||
next.range.start - nodeOffset - 1
|
||
).split( '' );
|
||
// Apply insertion annotations
|
||
annotations = this.model.getInsertionAnnotations();
|
||
if ( annotations instanceof ve.dm.AnnotationSet ) {
|
||
ve.dm.Document.addAnnotationsToData( data, this.model.getInsertionAnnotations() );
|
||
}
|
||
this.disableRendering();
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model, previous.range.start, data
|
||
),
|
||
next.range
|
||
);
|
||
this.enableRendering();
|
||
return;
|
||
}
|
||
|
||
// Simple deletion
|
||
if ( ( offsetDiff === 0 || offsetDiff === lengthDiff ) && sameLeadingAndTrailing ) {
|
||
if ( offsetDiff === 0 ) {
|
||
range = new ve.Range( next.range.start, next.range.start - lengthDiff );
|
||
} else {
|
||
range = new ve.Range( next.range.start, previous.range.start );
|
||
}
|
||
this.disableRendering();
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromRemoval( this.documentView.model, range ),
|
||
next.range
|
||
);
|
||
this.enableRendering();
|
||
return;
|
||
}
|
||
}
|
||
|
||
// Complex change
|
||
|
||
len = Math.min( previous.text.length, next.text.length );
|
||
// Count same characters from left
|
||
while ( fromLeft < len && previous.text[fromLeft] === next.text[fromLeft] ) {
|
||
++fromLeft;
|
||
}
|
||
// Count same characters from right
|
||
while (
|
||
fromRight < len - fromLeft &&
|
||
previous.text[previous.text.length - 1 - fromRight] ===
|
||
next.text[next.text.length - 1 - fromRight]
|
||
) {
|
||
++fromRight;
|
||
}
|
||
data = next.text.substring( fromLeft, next.text.length - fromRight ).split( '' );
|
||
// Get annotations to the left of new content and apply
|
||
annotations =
|
||
this.model.getDocument().data.getAnnotationsFromOffset( nodeOffset + 1 + fromLeft );
|
||
if ( annotations.getLength() ) {
|
||
ve.dm.Document.addAnnotationsToData( data, annotations );
|
||
}
|
||
newRange = next.range;
|
||
if ( newRange.isCollapsed() ) {
|
||
newRange = new ve.Range( this.getNearestCorrectOffset( newRange.start, 1 ) );
|
||
}
|
||
if ( data.length > 0 ) {
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model, nodeOffset + 1 + fromLeft, data
|
||
),
|
||
newRange
|
||
);
|
||
}
|
||
if ( fromLeft + fromRight < previous.text.length ) {
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromRemoval(
|
||
this.documentView.model,
|
||
new ve.Range(
|
||
data.length + nodeOffset + 1 + fromLeft,
|
||
data.length + nodeOffset + 1 + previous.text.length - fromRight
|
||
)
|
||
),
|
||
newRange
|
||
);
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle surface lock events.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.onLock = function () {
|
||
this.surfaceObserver.stop();
|
||
};
|
||
|
||
/**
|
||
* Handle surface unlock events.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.onUnlock = function () {
|
||
this.surfaceObserver.clear( this.model.getSelection() );
|
||
this.surfaceObserver.start();
|
||
};
|
||
|
||
/*! Relocation */
|
||
|
||
/**
|
||
* Start a relocation action.
|
||
*
|
||
* @see ve.ce.RelocatableNode
|
||
*
|
||
* @method
|
||
* @param {ve.ce.Node} node Node being relocated
|
||
*/
|
||
ve.ce.Surface.prototype.startRelocation = function ( node ) {
|
||
this.relocating = node;
|
||
this.emit( 'relocationStart', node );
|
||
};
|
||
|
||
/**
|
||
* Complete a relocation action.
|
||
*
|
||
* @see ve.ce.RelocatableNode
|
||
*
|
||
* @method
|
||
* @param {ve.ce.Node} node Node being relocated
|
||
*/
|
||
ve.ce.Surface.prototype.endRelocation = function () {
|
||
this.emit( 'relocationEnd', this.relocating );
|
||
this.relocating = null;
|
||
};
|
||
|
||
/*! Utilities */
|
||
|
||
/**
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.handleLeftOrRightArrowKey = function ( e ) {
|
||
var selection, offset, range;
|
||
// On Mac OS pressing Command (metaKey) + Left/Right is same as pressing Home/End.
|
||
// As we are not able to handle it programmatically (because we don't know at which offsets
|
||
// lines starts and ends) let it happen natively.
|
||
if ( e.metaKey ) {
|
||
return;
|
||
}
|
||
// Selection is going to be displayed programmatically so prevent default browser behaviour
|
||
e.preventDefault();
|
||
// Stop with final poll cycle so we have correct information in model
|
||
this.surfaceObserver.stop( true );
|
||
selection = this.model.getSelection();
|
||
offset = this.getDocument().getRelativeOffset(
|
||
selection.to,
|
||
e.keyCode === ve.Keys.DOM_VK_LEFT ? -1 : 1, // direction (left or right)
|
||
e.altKey === true || e.ctrlKey === true ? 'word' : 'character' // unit
|
||
);
|
||
if ( e.shiftKey === true ) { // expanded range
|
||
range = new ve.Range( selection.from, offset );
|
||
} else { // collapsed range (just a cursor)
|
||
range = new ve.Range( offset );
|
||
}
|
||
this.model.change( null, range );
|
||
this.surfaceObserver.start();
|
||
};
|
||
|
||
/**
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.handleUpOrDownArrowKey = function ( e ) {
|
||
var selection, rangySelection, rangyRange, range, $element;
|
||
if ( !$.browser.msie ) {
|
||
return;
|
||
}
|
||
this.surfaceObserver.stop( true );
|
||
selection = this.model.getSelection();
|
||
rangySelection = rangy.getSelection();
|
||
// Perform programatic handling only for selection that is expanded and backwards according to
|
||
// model data but not according to browser data.
|
||
if ( !selection.isCollapsed() && selection.isBackwards() && !rangySelection.isBackwards() ) {
|
||
$element = this.documentView.getSlugAtOffset( selection.to );
|
||
if ( !$element ) {
|
||
$element = $( '<span>' ).html( ' ' ).css( { 'width' : '0px', 'display' : 'none' } );
|
||
rangySelection.anchorNode.splitText( rangySelection.anchorOffset );
|
||
rangySelection.anchorNode.parentNode.insertBefore(
|
||
$element[0],
|
||
rangySelection.anchorNode.nextSibling
|
||
);
|
||
}
|
||
rangyRange = rangy.createRange();
|
||
rangyRange.selectNode( $element[0] );
|
||
rangySelection.setSingleRange( rangyRange );
|
||
setTimeout( ve.bind( function() {
|
||
if ( !$element.hasClass( 've-ce-slug' ) ) {
|
||
$element.remove();
|
||
}
|
||
this.surfaceObserver.start();
|
||
this.surfaceObserver.stop( false );
|
||
if ( e.shiftKey === true ) { // expanded range
|
||
range = new ve.Range( selection.from, this.model.getSelection().to );
|
||
} else { // collapsed range (just a cursor)
|
||
range = new ve.Range( this.model.getSelection().to );
|
||
}
|
||
this.model.change( null, range );
|
||
this.surfaceObserver.start();
|
||
}, this ), 0 );
|
||
} else {
|
||
this.surfaceObserver.start();
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle insertion of content.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.handleInsertion = function () {
|
||
var slug, data, range, annotations, insertionAnnotations, placeholder,
|
||
selection = this.model.getSelection(), documentModel = this.model.getDocument();
|
||
|
||
// Handles removing expanded selection before inserting new text
|
||
if ( !selection.isCollapsed() ) {
|
||
// Pull annotations from the first character in the selection
|
||
annotations = documentModel.data.getAnnotationsFromRange(
|
||
new ve.Range( selection.start, selection.start + 1 )
|
||
);
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromRemoval( this.documentView.model, selection ),
|
||
new ve.Range( selection.start )
|
||
);
|
||
this.surfaceObserver.clear();
|
||
selection = this.model.getSelection();
|
||
this.model.setInsertionAnnotations( annotations );
|
||
}
|
||
insertionAnnotations = this.model.getInsertionAnnotations() ||
|
||
new ve.dm.AnnotationSet( documentModel.getStore() );
|
||
if ( selection.isCollapsed() ) {
|
||
slug = this.documentView.getSlugAtOffset( selection.start );
|
||
// Is this a slug or are the annotations to the left different than the insertion
|
||
// annotations?
|
||
if (
|
||
slug || (
|
||
selection.start > 0 &&
|
||
!ve.compareObjects(
|
||
documentModel.data.getAnnotationsFromOffset( selection.start - 1 ),
|
||
insertionAnnotations
|
||
)
|
||
)
|
||
) {
|
||
placeholder = '\u2659';
|
||
if ( !insertionAnnotations.isEmpty() ) {
|
||
placeholder = [placeholder, insertionAnnotations];
|
||
}
|
||
// is this a slug and if so, is this a block slug?
|
||
if ( slug && documentModel.data.isStructuralOffset( selection.start ) ) {
|
||
range = new ve.Range( selection.start + 1, selection.start + 2 );
|
||
data = [{ 'type' : 'paragraph' }, placeholder, { 'type' : '/paragraph' }];
|
||
} else {
|
||
range = new ve.Range( selection.start, selection.start + 1 );
|
||
data = [placeholder];
|
||
}
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model, selection.start, data
|
||
),
|
||
range
|
||
);
|
||
this.surfaceObserver.clear();
|
||
}
|
||
}
|
||
|
||
this.surfaceObserver.stop( true );
|
||
};
|
||
|
||
/**
|
||
* Handle enter key down events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Enter key down event
|
||
*/
|
||
ve.ce.Surface.prototype.handleEnter = function ( e ) {
|
||
var tx, outerParent, outerChildrenCount, list,
|
||
selection = this.model.getSelection(),
|
||
documentModel = this.model.getDocument(),
|
||
emptyParagraph = [{ 'type': 'paragraph' }, { 'type': '/paragraph' }],
|
||
advanceCursor = true,
|
||
node = this.documentView.getNodeFromOffset( selection.from ),
|
||
nodeModel = node.getModel(),
|
||
cursor = selection.from,
|
||
contentBranchModel = nodeModel.isContent() ? nodeModel.getParent() : nodeModel,
|
||
contentBranchModelRange = contentBranchModel.getRange(),
|
||
stack = [],
|
||
outermostNode = null;
|
||
|
||
// Stop polling while we work
|
||
this.surfaceObserver.stop();
|
||
|
||
// Handle removal first
|
||
if ( selection.from !== selection.to ) {
|
||
tx = ve.dm.Transaction.newFromRemoval( documentModel, selection );
|
||
selection = tx.translateRange( selection );
|
||
this.model.change( tx, selection );
|
||
}
|
||
|
||
// Handle insertion
|
||
if (
|
||
contentBranchModel.getType() !== 'paragraph' &&
|
||
(
|
||
cursor === contentBranchModelRange.from ||
|
||
cursor === contentBranchModelRange.to
|
||
)
|
||
) {
|
||
// If we're at the start/end of something that's not a paragraph, insert a paragraph
|
||
// before/after
|
||
if ( cursor === contentBranchModelRange.from ) {
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
documentModel, contentBranchModel.getOuterRange().from, emptyParagraph
|
||
);
|
||
} else if ( cursor === contentBranchModelRange.to ) {
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
documentModel, contentBranchModel.getOuterRange().to, emptyParagraph
|
||
);
|
||
}
|
||
} else if ( e.shiftKey && contentBranchModel.hasSignificantWhitespace() ) {
|
||
// Insert newline
|
||
tx = ve.dm.Transaction.newFromInsertion( documentModel, selection.from, '\n' );
|
||
} else {
|
||
// Split
|
||
node.traverseUpstream( function ( node ) {
|
||
if ( !node.canBeSplit() ) {
|
||
return false;
|
||
}
|
||
stack.splice(
|
||
stack.length / 2,
|
||
0,
|
||
{ 'type': '/' + node.type },
|
||
node.model.getClonedElement()
|
||
);
|
||
outermostNode = node;
|
||
if ( e.shiftKey ) {
|
||
return false;
|
||
} else {
|
||
return true;
|
||
}
|
||
} );
|
||
|
||
outerParent = outermostNode.getModel().getParent();
|
||
outerChildrenCount = outerParent.getChildren().length;
|
||
|
||
if (
|
||
// This is a list item
|
||
outermostNode.type === 'listItem' &&
|
||
// This is the last list item
|
||
outerParent.getChildren()[outerChildrenCount - 1] === outermostNode.getModel() &&
|
||
// There is one child
|
||
outermostNode.children.length === 1 &&
|
||
// The child is empty
|
||
node.model.length === 0
|
||
) {
|
||
// Enter was pressed in an empty list item.
|
||
list = outermostNode.getModel().getParent();
|
||
// Remove the list item
|
||
tx = ve.dm.Transaction.newFromRemoval(
|
||
documentModel, outermostNode.getModel().getOuterRange()
|
||
);
|
||
this.model.change( tx );
|
||
// Insert a paragraph
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
documentModel, list.getOuterRange().to, emptyParagraph
|
||
);
|
||
advanceCursor = false;
|
||
} else {
|
||
// We must process the transaction first because getRelativeContentOffset can't help us
|
||
// yet
|
||
tx = ve.dm.Transaction.newFromInsertion( documentModel, selection.from, stack );
|
||
}
|
||
}
|
||
|
||
// Commit the transaction
|
||
this.model.change( tx );
|
||
|
||
// Now we can move the cursor forward
|
||
if ( advanceCursor ) {
|
||
this.model.change(
|
||
null, new ve.Range( documentModel.data.getRelativeContentOffset( selection.from, 1 ) )
|
||
);
|
||
} else {
|
||
this.model.change(
|
||
null, new ve.Range( documentModel.data.getNearestContentOffset( selection.from ) )
|
||
);
|
||
}
|
||
// Reset and resume polling
|
||
this.surfaceObserver.clear();
|
||
this.surfaceObserver.start();
|
||
};
|
||
|
||
/**
|
||
* Handle delete and backspace key down events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Delete key down event
|
||
* @param {boolean} backspace Key was a backspace
|
||
*/
|
||
ve.ce.Surface.prototype.handleDelete = function ( e, backspace ) {
|
||
var sourceOffset, targetOffset, sourceSplitableNode, targetSplitableNode, tx, cursorAt,
|
||
sourceNode, targetNode, sourceData, nodeToDelete, adjacentData, adjacentText,
|
||
adjacentTextAfterMatch, endOffset, i, containsInlineElements = false,
|
||
selection = this.model.getSelection();
|
||
|
||
if ( selection.isCollapsed() ) {
|
||
// Set source and target linmod offsets
|
||
if ( backspace ) {
|
||
sourceOffset = selection.to;
|
||
targetOffset = this.getNearestCorrectOffset( sourceOffset - 1, -1 );
|
||
|
||
// At the beginning of the document - don't do anything and preventDefault
|
||
if ( sourceOffset === targetOffset ) {
|
||
e.preventDefault();
|
||
return;
|
||
}
|
||
|
||
} else {
|
||
sourceOffset = this.model.getDocument().data.getRelativeContentOffset( selection.to, 1 );
|
||
targetOffset = selection.to;
|
||
|
||
// At the end of the document - don't do anything and preventDefault
|
||
if ( sourceOffset <= targetOffset ) {
|
||
e.preventDefault();
|
||
return;
|
||
}
|
||
}
|
||
|
||
// Set source and target nodes
|
||
sourceNode = this.documentView.getNodeFromOffset( sourceOffset, false ),
|
||
targetNode = this.documentView.getNodeFromOffset( targetOffset, false );
|
||
|
||
if ( sourceNode.type === targetNode.type ) {
|
||
sourceSplitableNode = ve.ce.Node.getSplitableNode( sourceNode );
|
||
targetSplitableNode = ve.ce.Node.getSplitableNode( targetNode );
|
||
}
|
||
//ve.log(sourceSplitableNode, targetSplitableNode);
|
||
|
||
// Save target location of cursor
|
||
cursorAt = targetOffset;
|
||
|
||
// Get text from cursor location to end of node in the proper direction
|
||
adjacentData = null;
|
||
adjacentText = '';
|
||
|
||
if ( backspace ) {
|
||
adjacentData = sourceNode.model.doc.data.slice(
|
||
sourceNode.model.getOffset() + ( sourceNode.model.isWrapped() ? 1 : 0 ) ,
|
||
sourceOffset
|
||
);
|
||
} else {
|
||
endOffset = targetNode.model.getOffset() +
|
||
targetNode.model.getLength() +
|
||
( targetNode.model.isWrapped() ? 1 : 0 );
|
||
adjacentData = targetNode.model.doc.data.slice( targetOffset, endOffset );
|
||
}
|
||
|
||
for ( i = 0; i < adjacentData.length; i++ ) {
|
||
if ( adjacentData[i].type !== undefined ) {
|
||
containsInlineElements = true;
|
||
break;
|
||
}
|
||
adjacentText += adjacentData[i][0];
|
||
}
|
||
|
||
if ( !containsInlineElements ) {
|
||
adjacentTextAfterMatch = adjacentText.match( this.constructor.static.textPattern );
|
||
// If there are "normal" characters in the adjacent text let the browser handle natively
|
||
if ( adjacentTextAfterMatch !== null && adjacentTextAfterMatch.length ) {
|
||
return;
|
||
}
|
||
}
|
||
|
||
ve.log('handleDelete programatically');
|
||
e.preventDefault();
|
||
this.surfaceObserver.stop();
|
||
|
||
if (
|
||
// Source and target are the same node
|
||
sourceNode === targetNode ||
|
||
(
|
||
// Source and target have the same parent (list items)
|
||
sourceSplitableNode !== undefined &&
|
||
sourceSplitableNode.getParent() === targetSplitableNode.getParent()
|
||
)
|
||
) {
|
||
// Simple removal
|
||
tx = ve.dm.Transaction.newFromRemoval(
|
||
this.documentView.model, new ve.Range( targetOffset, sourceOffset )
|
||
);
|
||
this.model.change( tx, new ve.Range( cursorAt ) );
|
||
} else if ( sourceNode.getType() === 'document' ) {
|
||
// Source is a slug - move the cursor somewhere useful
|
||
this.model.change( null, new ve.Range( cursorAt ) );
|
||
} else {
|
||
// Source and target are different nodes or do not share a parent, perform tricky merge
|
||
// Get the data for the source node
|
||
sourceData = this.documentView.model.getData( sourceNode.model.getRange() );
|
||
|
||
// Find the node that should be completely removed
|
||
nodeToDelete = sourceNode;
|
||
nodeToDelete.traverseUpstream( function ( node ) {
|
||
if ( node.getParent().children.length === 1 ) {
|
||
nodeToDelete = node.getParent();
|
||
return true;
|
||
} else {
|
||
return false;
|
||
}
|
||
} );
|
||
|
||
this.model.change(
|
||
[
|
||
// Remove source node or source node ancestor
|
||
ve.dm.Transaction.newFromRemoval(
|
||
this.documentView.model, nodeToDelete.getModel().getOuterRange()
|
||
),
|
||
// Append source data to target
|
||
ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model, targetOffset, sourceData
|
||
)
|
||
],
|
||
new ve.Range( cursorAt )
|
||
);
|
||
}
|
||
} else {
|
||
// Selection removal
|
||
ve.log('selection removal - handle programatically');
|
||
e.preventDefault();
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromRemoval( this.documentView.model, selection ),
|
||
new ve.Range( selection.start )
|
||
);
|
||
}
|
||
|
||
this.surfaceObserver.clear();
|
||
this.surfaceObserver.start();
|
||
};
|
||
|
||
/**
|
||
* Show selection on a range.
|
||
*
|
||
* @method
|
||
* @param {ve.Range} range Range to show selection on
|
||
*/
|
||
ve.ce.Surface.prototype.showSelection = function ( range ) {
|
||
var start, end,
|
||
rangySel = rangy.getSelection(),
|
||
rangyRange = rangy.createRange();
|
||
|
||
// Ensure the range we are asking to select is from and to correct offsets - failure to do so
|
||
// may cause getNodeAndOffset to throw an exception
|
||
range = new ve.Range(
|
||
this.getNearestCorrectOffset( range.from ),
|
||
this.getNearestCorrectOffset( range.to )
|
||
);
|
||
|
||
if ( !range.isCollapsed() ) {
|
||
start = this.documentView.getNodeAndOffset( range.start );
|
||
end = this.documentView.getNodeAndOffset( range.end );
|
||
rangyRange.setStart( start.node, start.offset );
|
||
rangyRange.setEnd( end.node, end.offset );
|
||
rangySel.removeAllRanges();
|
||
rangySel.addRange( rangyRange, range.start !== range.from );
|
||
} else {
|
||
start = this.documentView.getNodeAndOffset( range.start );
|
||
rangyRange.setStart( start.node, start.offset );
|
||
rangySel.setSingleRange( rangyRange );
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Append passed phantoms to phantoms container after emptying it first.
|
||
*
|
||
* @method
|
||
* @param {jQuery} $phantoms Phantoms to append
|
||
*/
|
||
ve.ce.Surface.prototype.replacePhantoms = function( $phantoms ) {
|
||
this.$phantoms.empty().append( $phantoms );
|
||
};
|
||
|
||
/*! Helpers */
|
||
|
||
/**
|
||
* Get the nearest offset that a cursor can be placed at.
|
||
*
|
||
* TODO: Find a better name and a better place for this method
|
||
*
|
||
* @method
|
||
* @param {number} offset Offset to start looking at
|
||
* @param {number} [direction=-1] Direction to look in, +1 or -1
|
||
*/
|
||
ve.ce.Surface.prototype.getNearestCorrectOffset = function ( offset, direction ) {
|
||
var contentOffset, structuralOffset;
|
||
|
||
direction = direction > 0 ? 1 : -1;
|
||
if (
|
||
this.documentView.model.data.isContentOffset( offset ) ||
|
||
this.hasSlugAtOffset( offset )
|
||
) {
|
||
return offset;
|
||
}
|
||
|
||
contentOffset = this.documentView.model.data.getNearestContentOffset( offset, direction );
|
||
structuralOffset =
|
||
this.documentView.model.data.getNearestStructuralOffset( offset, direction, true );
|
||
|
||
if ( !this.hasSlugAtOffset( structuralOffset ) ) {
|
||
return contentOffset;
|
||
}
|
||
|
||
if ( direction === 1 ) {
|
||
if ( contentOffset < offset ) {
|
||
return structuralOffset;
|
||
} else {
|
||
return Math.min( contentOffset, structuralOffset );
|
||
}
|
||
} else {
|
||
if ( contentOffset > offset ) {
|
||
return structuralOffset;
|
||
} else {
|
||
return Math.max( contentOffset, structuralOffset );
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Check if an offset is inside a slug.
|
||
*
|
||
* TODO: Find a better name and a better place for this method - probably in a document view?
|
||
*
|
||
* @method
|
||
* @param {number} offset Offset to check for a slug at
|
||
* @returns {boolean} A slug exists at the given offset
|
||
*/
|
||
ve.ce.Surface.prototype.hasSlugAtOffset = function ( offset ) {
|
||
return !!this.documentView.getSlugAtOffset( offset );
|
||
};
|
||
|
||
/**
|
||
* Get the number of consecutive clicks the user has performed.
|
||
*
|
||
* This is required for supporting double, tripple, etc. clicking across all browsers.
|
||
*
|
||
* @method
|
||
* @param {Event} e Native event object
|
||
* @returns {number} Number of clicks detected
|
||
*/
|
||
ve.ce.Surface.prototype.getClickCount = function ( e ) {
|
||
if ( !$.browser.msie ) {
|
||
return e.detail;
|
||
}
|
||
|
||
var i, response = 1;
|
||
|
||
// Add select MouseEvent properties to the beginning of the clickHistory
|
||
this.clickHistory.unshift( {
|
||
x: e.x,
|
||
y: e.y,
|
||
timeStamp: e.timeStamp
|
||
} );
|
||
|
||
// Compare history
|
||
if ( this.clickHistory.length > 1 ) {
|
||
for ( i = 0; i < this.clickHistory.length - 1; i++ ) {
|
||
if (
|
||
this.clickHistory[i].x === this.clickHistory[i + 1].x &&
|
||
this.clickHistory[i].y === this.clickHistory[i + 1].y &&
|
||
this.clickHistory[i].timeStamp - this.clickHistory[i + 1].timeStamp < 500
|
||
) {
|
||
response++;
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Trim old history if necessary
|
||
if ( this.clickHistory.length > 2 ) {
|
||
this.clickHistory.pop();
|
||
}
|
||
|
||
return response;
|
||
};
|
||
|
||
/*! Getters */
|
||
|
||
/**
|
||
* Get the surface model.
|
||
*
|
||
* @method
|
||
* @returns {ve.dm.Surface} Surface model
|
||
*/
|
||
ve.ce.Surface.prototype.getModel = function () {
|
||
return this.model;
|
||
};
|
||
|
||
/**
|
||
* Get the document view.
|
||
*
|
||
* @method
|
||
* @returns {ve.ce.Document} Document view
|
||
*/
|
||
ve.ce.Surface.prototype.getDocument = function () {
|
||
return this.documentView;
|
||
};
|
||
|
||
/**
|
||
* Check if rendering is enabled.
|
||
*
|
||
* @method
|
||
* @returns {boolean} Render is enabled
|
||
*/
|
||
ve.ce.Surface.prototype.isRenderingEnabled = function () {
|
||
return this.renderingEnabled;
|
||
};
|
||
|
||
/**
|
||
* Enable rendering.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.enableRendering = function () {
|
||
this.renderingEnabled = true;
|
||
};
|
||
|
||
/**
|
||
* Disable rendering.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.disableRendering = function () {
|
||
this.renderingEnabled = false;
|
||
};
|