mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-17 19:31:51 +00:00
1905 lines
55 KiB
JavaScript
1905 lines
55 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.Element
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* @mixins ve.EventEmitter
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*
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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.ui.Surface} surface Surface user interface
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* @param {Object} [config] Configuration options
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*/
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ve.ce.Surface = function VeCeSurface( model, surface, options ) {
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var $documentNode;
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// Parent constructor
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ve.Element.call( this, options );
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// Mixin constructors
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ve.EventEmitter.call( this );
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// Properties
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this.surface = surface;
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this.inIme = false;
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this.model = model;
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this.documentView = new ve.ce.Document( model.getDocument(), this );
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this.surfaceObserver = new ve.ce.SurfaceObserver( this.documentView );
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this.selectionTimeout = null;
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this.$document = $( this.getElementDocument() );
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this.eventSequencer = new ve.EventSequencer( [
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'keydown', 'keypress', 'keyup', 'mousedown', 'mouseup',
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'mousemove', 'compositionstart', 'compositionend'
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] );
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this.clipboard = [];
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this.clipboardId = String( Math.random() );
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this.renderLocks = 0;
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this.dragging = false;
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this.relocating = false;
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this.selecting = false;
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this.$phantoms = this.$$( '<div>' );
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this.$highlights = this.$$( '<div>' );
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this.$pasteTarget = this.$$( '<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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// This is set on entering changeModelSelection, then unset when leaving.
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// It is used to test whether a reflected change event is emitted.
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this.newModelSelection = null;
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// Events
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this.surfaceObserver.connect(
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this, { 'contentChange': 'onContentChange', 'selectionChange': 'onSelectionChange' }
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);
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this.model.connect( this, { 'change': 'onChange', 'lock': 'onLock', 'unlock': 'onUnlock' } );
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$documentNode = this.documentView.getDocumentNode().$;
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$documentNode.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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} );
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this.$pasteTarget.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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} );
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// blur and focus fire in the wrong order in jQuery 1.8 . Bind to the native events which do
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// fire in the correct order.
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$documentNode[0].addEventListener( 'focus', ve.bind( this.documentOnFocus, this ) );
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$documentNode[0].addEventListener( 'blur', ve.bind( this.documentOnBlur, this ) );
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// $pasteTarget is focused when selecting a FocusableNode
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this.$pasteTarget[0].addEventListener( 'focus', ve.bind( this.documentOnFocus, this ) );
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this.$pasteTarget[0].addEventListener( 'blur', ve.bind( this.documentOnBlur, this ) );
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$documentNode.on( $.browser.msie ? 'beforepaste' : 'paste', ve.bind( this.onPaste, this ) );
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$documentNode.on( 'focus', 'a', function () {
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// Opera triggers 'blur' on document node before any link is
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// focused and we don't want that
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$documentNode.focus();
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} );
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this.$.on( {
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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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// Add listeners to the eventSequencer. They won't get called until
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// eventSequencer.attach(node) has been called.
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this.eventSequencer.on( {
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'keydown': ve.bind( this.onDocumentKeyDown, this ),
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'keyup': ve.bind( this.onDocumentKeyUp, this ),
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'keypress': ve.bind( this.onDocumentKeyPress, this ),
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'mousedown': ve.bind( this.onDocumentMouseDown, this ),
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'mouseup': ve.bind( this.onDocumentMouseUp, this ),
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'mousemove': ve.bind( this.onDocumentMouseMove, this ),
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'compositionstart': ve.bind( this.onDocumentCompositionStart, this ),
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'compositionend': ve.bind( this.onDocumentCompositionEnd, this )
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} );
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this.eventSequencer.after( {
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'keypress': ve.bind( this.afterDocumentKeyPress, this )
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} );
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// Initialization
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this.$.addClass( 've-ce-surface' );
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this.$phantoms.addClass( 've-ce-surface-phantoms' );
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this.$highlights.addClass( 've-ce-surface-highlights' );
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this.$pasteTarget.addClass( 've-ce-surface-paste' ).prop( 'contentEditable', 'true' );
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// Add elements to the DOM
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this.$.append( this.documentView.getDocumentNode().$, this.$pasteTarget );
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this.surface.$localOverlayBlockers.append( this.$phantoms, this.$highlights );
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};
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/* Inheritance */
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OO.inheritClass( ve.ce.Surface, ve.Element );
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OO.mixinClass( 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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* 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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/* Static methods */
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/**
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* When pasting, browsers normalize HTML to varying degrees.
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* This hash creates a comparable string for validating clipboard contents.
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*
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* @param {jQuery} $elements Clipboard HTML elements
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* @returns {string} Hash
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*/
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ve.ce.Surface.static.getClipboardHash = function ( $elements ) {
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var hash = '';
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// Collect text contents, or just node name for content-less nodes.
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$elements.each( function () {
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hash += this.textContent || '<' + this.nodeName + '>';
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} );
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// Whitespace may be added/removed, so strip it all
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return hash.replace( /\s/gm, '' );
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};
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/* Methods */
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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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* @returns {Object|null} { 'start': { 'x': ..., 'y': ... }, 'end': { 'x': ..., 'y': ... } }
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*/
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ve.ce.Surface.prototype.getSelectionRect = function () {
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var sel, rect, $span, lineHeight, startRange, startOffset, endRange, endOffset, focusedOffset;
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if ( this.focusedNode ) {
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focusedOffset = this.focusedNode.$.offset();
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return {
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'start': {
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'x': focusedOffset.left,
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'y': focusedOffset.top
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},
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'end': {
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'x': focusedOffset.left + this.focusedNode.$.width(),
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'y': focusedOffset.top + this.focusedNode.$.height()
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}
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};
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}
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if ( !rangy.initialized ) {
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rangy.init();
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}
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sel = rangy.getSelection( this.getElementDocument() );
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// We can't do anything if there's no selection
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if ( sel.rangeCount === 0 ) {
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return null;
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}
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rect = sel.getBoundingDocumentRect();
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// Sometimes the selection will have invalid bounding rect information, which presents as all
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// rectangle dimensions being 0 which causes #getStartDocumentPos and #getEndDocumentPos to
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// throw exceptions
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if ( rect.top === 0 || rect.bottom === 0 || rect.left === 0 || rect.right === 0 ) {
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// Calculate starting range position
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startRange = sel.getRangeAt( 0 );
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$span = $( '<span>|</span>', startRange.startContainer.ownerDocument );
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startRange.insertNode( $span[0] );
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startOffset = $span.offset();
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$span.detach();
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// Calculate ending range position
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endRange = startRange.cloneRange();
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endRange.collapse( false );
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endRange.insertNode( $span[0] );
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endOffset = $span.offset();
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lineHeight = $span.height();
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$span.detach();
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// Restore the selection
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startRange.refresh();
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// Return the selection bounding rectangle
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return {
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'start': {
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'x': startOffset.left,
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'y': startOffset.top
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},
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'end': {
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'x': endOffset.left,
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// Adjust the vertical position by the line-height to get the bottom dimension
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'y': endOffset.top + lineHeight
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}
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};
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} else {
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return {
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'start': sel.getStartDocumentPos(),
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'end': sel.getEndDocumentPos()
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};
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}
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};
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/*! Initialization */
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/**
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* Initialize surface.
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*
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* This should be called after the surface has been attached to the DOM.
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*
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* @method
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*/
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ve.ce.Surface.prototype.initialize = function () {
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if ( !rangy.initialized ) {
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rangy.init();
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}
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this.documentView.getDocumentNode().setLive( true );
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// Turn off native object editing. This must be tried after the surface has been added to DOM.
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try {
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this.$document[0].execCommand( 'enableObjectResizing', false, false );
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this.$document[0].execCommand( 'enableInlineTableEditing', false, false );
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} catch ( e ) { /* Silently ignore */ }
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};
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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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*/
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ve.ce.Surface.prototype.destroy = function () {
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this.surfaceObserver.detach();
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this.documentView.getDocumentNode().setLive( false );
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this.$.remove();
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this.$phantoms.remove();
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};
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/**
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* Give focus to the surface, preserving the previous selection.
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*
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* This is used when switching between surfaces, e.g. when closing a dialog window.
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*/
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ve.ce.Surface.prototype.focus = function () {
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var $document = this.documentView.getDocumentNode().$,
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$window = $( ve.Element.getWindow( $document ) ),
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scrollTop = $window.scrollTop();
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$document[0].focus();
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// Calling focus sets the cursor to zero offset, so we need to restore scrollTop
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$window.scrollTop( scrollTop );
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this.focusedNode = null;
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this.onChange( null, this.surface.getModel().selection );
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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 {Event} e Focus event (native event, NOT a jQuery event!)
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*/
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ve.ce.Surface.prototype.documentOnFocus = function () {
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this.eventSequencer.attach( this.$ );
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this.surfaceObserver.startTimerLoop();
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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 {Event} e Blur event (native event, NOT a jQuery event!)
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*/
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ve.ce.Surface.prototype.documentOnBlur = function () {
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this.eventSequencer.detach();
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this.surfaceObserver.stopTimerLoop();
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this.surfaceObserver.pollOnce();
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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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var selection, node;
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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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// this.$$( e.target ).closest( '.ve-ce-documentNode' ).length === 0
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if ( e.which === 1 ) {
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this.surfaceObserver.stopTimerLoop();
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// TODO: guard with incRenderLock?
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this.surfaceObserver.pollOnce();
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}
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// Handle triple click
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if ( this.getClickCount( e.originalEvent ) >= 3 ) {
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// Browser default behaviour for triple click won't behave as we want
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e.preventDefault();
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selection = this.model.getSelection();
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node = this.documentView.getDocumentNode().getNodeFromOffset( selection.start );
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// Find the nearest non-content node
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while ( node.parent !== null && node.model.isContent() ) {
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node = node.parent;
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}
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this.model.change( null, node.model.getRange() );
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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.startTimerLoop();
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// TODO: guard with incRenderLock?
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this.surfaceObserver.pollOnce();
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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.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Mouse move event
|
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* @emits selectionStart
|
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*/
|
||
ve.ce.Surface.prototype.onDocumentMouseMove = function () {
|
||
// 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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};
|
||
|
||
/**
|
||
* Handle document dragover events.
|
||
*
|
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* Limits native drag and drop behavior.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Drag over event
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentDragOver = function () {
|
||
if ( !this.relocating ) {
|
||
return false;
|
||
} else if ( this.selecting ) {
|
||
this.emit( 'selectionEnd' );
|
||
this.selecting = false;
|
||
this.dragging = false;
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle document drop events.
|
||
*
|
||
* Limits native drag and drop behavior.
|
||
*
|
||
* TODO: Look into using drag and drop data transfer to embed the dragged element's original range
|
||
* (for dragging within one document) and serialized linear model data (for dragging between
|
||
* multiple documents) and use a special mimetype, like application-x/VisualEditor, to allow
|
||
* dragover and drop events on the surface, removing the need to give the surface explicit
|
||
* instructions to allow and prevent dragging and dropping a certain node.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Drag drop event
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentDrop = function ( e ) {
|
||
var node = this.relocating;
|
||
|
||
if ( node ) {
|
||
// Process drop operation after native drop has been prevented below
|
||
setTimeout( ve.bind( function () {
|
||
var dropPoint, nodeData, originFragment, targetFragment,
|
||
nodeRange = node.getModel().getOuterRange();
|
||
|
||
// Get a fragment from the drop point
|
||
dropPoint = rangy.positionFromPoint(
|
||
e.originalEvent.pageX - this.$document.scrollLeft(),
|
||
e.originalEvent.pageY - this.$document.scrollTop()
|
||
);
|
||
if ( !dropPoint ) {
|
||
// Getting position from point supported
|
||
return false;
|
||
}
|
||
targetFragment = this.model.getFragment(
|
||
new ve.Range( ve.ce.getOffset( dropPoint.node, dropPoint.offset ) ), false
|
||
);
|
||
|
||
// Get a fragment and data of the node being dragged
|
||
originFragment = this.model.getFragment( nodeRange, false );
|
||
nodeData = originFragment.getData();
|
||
|
||
// Remove node from old location (auto-updates targetFragment's range)
|
||
originFragment.removeContent();
|
||
|
||
// Re-insert node at new location and re-select it
|
||
targetFragment.insertContent( nodeData ).select();
|
||
}, this ) );
|
||
}
|
||
|
||
return false;
|
||
};
|
||
|
||
/**
|
||
* Handle document key down events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Key down event
|
||
* @emits selectionStart
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentKeyDown = function ( e ) {
|
||
var trigger;
|
||
|
||
// Ignore keydowns while in IME mode but do not preventDefault them (so text actually appear on
|
||
// the screen).
|
||
if ( this.inIme === true ) {
|
||
return;
|
||
}
|
||
|
||
// When entering IME mode IE first keydown (e.which = 229) before it fires compositionstart, so
|
||
// IME detection have to happen here instead of onDocumentCompositionStart.
|
||
// TODO: This code and code in onDocumentCompositionStart are very similar, consider moving them
|
||
// to one method.
|
||
if ( $.browser.msie === true && e.which === 229 ) {
|
||
this.inIme = true;
|
||
this.handleInsertion();
|
||
return;
|
||
}
|
||
|
||
this.surfaceObserver.stopTimerLoop();
|
||
this.incRenderLock();
|
||
try {
|
||
// TODO: is this correct?
|
||
this.surfaceObserver.pollOnce();
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
switch ( e.keyCode ) {
|
||
case ve.Keys.LEFT:
|
||
case ve.Keys.RIGHT:
|
||
case ve.Keys.UP:
|
||
case ve.Keys.DOWN:
|
||
if ( !this.dragging && !this.selecting && e.shiftKey ) {
|
||
this.selecting = true;
|
||
this.emit( 'selectionStart' );
|
||
}
|
||
if ( ve.ce.isLeftOrRightArrowKey( e.keyCode ) ) {
|
||
this.handleLeftOrRightArrowKey( e );
|
||
} else {
|
||
this.handleUpOrDownArrowKey( e );
|
||
}
|
||
break;
|
||
case ve.Keys.ENTER:
|
||
e.preventDefault();
|
||
this.handleEnter( e );
|
||
break;
|
||
case ve.Keys.BACKSPACE:
|
||
e.preventDefault();
|
||
this.handleDelete( e, true );
|
||
break;
|
||
case ve.Keys.DELETE:
|
||
e.preventDefault();
|
||
this.handleDelete( e, false );
|
||
break;
|
||
default:
|
||
trigger = new ve.ui.Trigger( e );
|
||
if ( trigger.isComplete() && this.surface.execute( trigger ) ) {
|
||
e.preventDefault();
|
||
}
|
||
break;
|
||
}
|
||
this.incRenderLock();
|
||
try {
|
||
this.surfaceObserver.pollOnce();
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
this.surfaceObserver.startTimerLoop();
|
||
};
|
||
|
||
/**
|
||
* Handle document key press events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Key press event
|
||
*/
|
||
ve.ce.Surface.prototype.onDocumentKeyPress = function ( e ) {
|
||
var selection, prevNode, documentModel = this.model.getDocument();
|
||
|
||
// Prevent IE from editing Aliens/Entities
|
||
// TODO: Better comment about what's going on here is needed.
|
||
if ( $.browser.msie === true ) {
|
||
selection = this.model.getSelection();
|
||
if ( selection.start !== 0 && selection.isCollapsed() ) {
|
||
prevNode = documentModel.getDocumentNode().getNodeFromOffset( selection.start - 1 );
|
||
if (
|
||
!this.documentView.getSlugAtOffset( selection.start ) &&
|
||
prevNode.isContent() &&
|
||
documentModel.data.isCloseElementData( selection.start - 1 )
|
||
) {
|
||
this.model.change( null, new ve.Range( selection.start ) );
|
||
}
|
||
}
|
||
}
|
||
|
||
// Filter out non-character keys. If those keys wouldn't be filtered out unexpected content
|
||
// deletion would occur in case when selection is not collapsed and user press home key for
|
||
// instance (Firefox fires keypress for home key).
|
||
// TODO: Should be covered with Selenium tests.
|
||
if ( e.which === 0 || e.charCode === 0 || ve.ce.isShortcutKey( e ) ) {
|
||
return;
|
||
}
|
||
|
||
this.handleInsertion();
|
||
};
|
||
|
||
/**
|
||
* Poll again after the native key press
|
||
* @param {jQuery.Event} ev
|
||
*/
|
||
ve.ce.Surface.prototype.afterDocumentKeyPress = function () {
|
||
this.surfaceObserver.pollOnce();
|
||
};
|
||
|
||
/**
|
||
* 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 === ve.Keys.SHIFT ) {
|
||
this.selecting = false;
|
||
this.emit( 'selectionEnd' );
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle cut events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Cut event
|
||
*/
|
||
ve.ce.Surface.prototype.onCut = function ( e ) {
|
||
// TODO: no pollOnce here: but should we add one?
|
||
this.surfaceObserver.stopTimerLoop();
|
||
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.
|
||
this.$document[0].execCommand( 'undo', false, false );
|
||
selection = this.model.getSelection();
|
||
|
||
// Transact
|
||
tx = ve.dm.Transaction.newFromRemoval( this.documentView.model, selection );
|
||
|
||
// Document may not have had real focus (e.g. with a FocusableNode)
|
||
this.documentView.documentNode.$[0].focus();
|
||
|
||
this.model.change( tx, new ve.Range( selection.start ) );
|
||
this.surfaceObserver.clear();
|
||
this.surfaceObserver.startTimerLoop();
|
||
this.surfaceObserver.pollOnce();
|
||
}, this ) );
|
||
};
|
||
|
||
/**
|
||
* Handle copy events.
|
||
*
|
||
* @method
|
||
* @param {jQuery.Event} e Copy event
|
||
*/
|
||
ve.ce.Surface.prototype.onCopy = function ( e ) {
|
||
var rangyRange, sel, originalRange,
|
||
clipboardIndex, clipboardItem,
|
||
scrollTop,
|
||
view = this,
|
||
slice = this.documentView.model.getSlicedLinearData( this.model.getSelection() ),
|
||
clipboardData = e.originalEvent.clipboardData,
|
||
$window = $( ve.Element.getWindow( this.$$.context ) );
|
||
|
||
// Clone the elements in the slice
|
||
slice.cloneElements();
|
||
|
||
this.$pasteTarget.empty();
|
||
|
||
ve.dm.converter.store = this.documentView.model.getStore();
|
||
ve.dm.converter.internalList = this.documentView.model.getInternalList();
|
||
ve.dm.converter.getDomSubtreeFromData( slice.getData(), this.$pasteTarget[0] );
|
||
|
||
clipboardItem = { 'data': slice, 'hash': null };
|
||
clipboardIndex = this.clipboard.push( clipboardItem ) - 1;
|
||
|
||
// Check we have setData and that it actually works (returns true)
|
||
if (
|
||
clipboardData && clipboardData.setData &&
|
||
clipboardData.setData( 'text/xcustom', '' ) &&
|
||
clipboardData.setData( 'text/html', '' )
|
||
) {
|
||
// Webkit allows us to directly edit the clipboard
|
||
// Disable the default event so we can override the data
|
||
e.preventDefault();
|
||
clipboardData.setData( 'text/xcustom', this.clipboardId + '-' + clipboardIndex );
|
||
// As we've disabled the default event we need to set the normal clipboard data
|
||
clipboardData.setData( 'text/html', this.$pasteTarget.html() );
|
||
clipboardData.setData( 'text/plain', this.$pasteTarget.text() );
|
||
} else {
|
||
this.$pasteTarget.prepend(
|
||
$( '<span>' ).attr( 'data-ve-clipboard-key', this.clipboardId + '-' + clipboardIndex )
|
||
);
|
||
clipboardItem.hash = this.constructor.static.getClipboardHash( this.$pasteTarget.contents() );
|
||
// If direct clipboard editing is not allowed, we must use the pasteTarget to
|
||
// select the data we want to go in the clipboard
|
||
rangyRange = rangy.createRange( this.getElementDocument() );
|
||
rangyRange.setStart( this.$pasteTarget[0], 0 );
|
||
rangyRange.setEnd( this.$pasteTarget[0], this.$pasteTarget[0].childNodes.length );
|
||
|
||
// Save scroll position before changing focus to "offscreen" paste target
|
||
scrollTop = $window.scrollTop();
|
||
|
||
sel = rangy.getSelection( this.getElementDocument() );
|
||
originalRange = sel.getRangeAt( 0 ).cloneRange();
|
||
sel.removeAllRanges();
|
||
this.$pasteTarget[0].focus();
|
||
sel.addRange( rangyRange, false );
|
||
|
||
setTimeout( function () {
|
||
sel = rangy.getSelection( view.getElementDocument() );
|
||
sel.removeAllRanges();
|
||
view.documentView.documentNode.$[0].focus();
|
||
sel.addRange( originalRange );
|
||
|
||
$window.scrollTop( scrollTop );
|
||
} );
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle native paste event
|
||
*
|
||
* @param {jQuery.Event} e Paste event
|
||
*/
|
||
ve.ce.Surface.prototype.onPaste = function ( e ) {
|
||
// Prevent pasting until after we are done
|
||
if ( this.pasting ) {
|
||
return false;
|
||
}
|
||
this.pasting = true;
|
||
this.beforePaste( e );
|
||
setTimeout( ve.bind( this.afterPaste, this, e ) );
|
||
};
|
||
|
||
/**
|
||
* Handle pre-paste events.
|
||
*
|
||
* @param {jQuery.Event} e Paste event
|
||
*/
|
||
ve.ce.Surface.prototype.beforePaste = function ( e ) {
|
||
var tx,
|
||
$window = $( ve.Element.getWindow( this.$$.context ) ),
|
||
selection = this.model.getSelection(),
|
||
clipboardData = e.originalEvent.clipboardData;
|
||
|
||
this.beforePasteData = {};
|
||
if ( clipboardData ) {
|
||
this.beforePasteData.custom = clipboardData.getData( 'text/xcustom' );
|
||
this.beforePasteData.html = clipboardData.getData( 'text/html' );
|
||
this.beforePasteData.plain = clipboardData.getData( 'text/plain' );
|
||
}
|
||
|
||
// TODO: no pollOnce here: but should we add one?
|
||
this.surfaceObserver.stopTimerLoop();
|
||
|
||
// Pasting into a range? Remove first.
|
||
if ( !rangy.getSelection( this.$document[0] ).isCollapsed ) {
|
||
tx = ve.dm.Transaction.newFromRemoval( this.documentView.model, selection );
|
||
selection = tx.translateRange( selection );
|
||
this.model.change( tx, selection );
|
||
}
|
||
|
||
// Save scroll position before changing focus to "offscreen" paste target
|
||
this.beforePasteData.scrollTop = $window.scrollTop();
|
||
this.$pasteTarget.empty();
|
||
this.$pasteTarget[0].focus();
|
||
};
|
||
|
||
/**
|
||
* Handle post-paste events.
|
||
*
|
||
* @param {jQuery.Event} e Paste event
|
||
*/
|
||
ve.ce.Surface.prototype.afterPaste = function () {
|
||
var clipboardKey, clipboardId, clipboardIndex,
|
||
$elements, parts, pasteData, slice, tx,
|
||
beforePasteData = this.beforePasteData || {},
|
||
$window = $( ve.Element.getWindow( this.$$.context ) ),
|
||
selection = this.model.getSelection();
|
||
|
||
if ( beforePasteData.custom ) {
|
||
clipboardKey = beforePasteData.custom;
|
||
} else {
|
||
$elements = beforePasteData.html ? $( $.parseHTML( beforePasteData.html ) ) : this.$pasteTarget.contents();
|
||
|
||
// Try to find the clipboard key hidden in the HTML
|
||
$elements.each( function () {
|
||
var val = this.getAttribute && this.getAttribute( 'data-ve-clipboard-key' );
|
||
if ( val ) {
|
||
clipboardKey = val;
|
||
return false;
|
||
}
|
||
} );
|
||
|
||
}
|
||
if ( clipboardKey ) {
|
||
parts = clipboardKey.split( '-' );
|
||
clipboardId = parts[0];
|
||
clipboardIndex = parts[1];
|
||
if ( clipboardId === this.clipboardId && this.clipboard[clipboardIndex] ) {
|
||
// Hash validation: either text/xcustom was used or the hash must be
|
||
// equal to the hash of the pasted HTML to assert that the HTML
|
||
// hasn't been modified in another editor before being pasted back.
|
||
if ( beforePasteData.custom ||
|
||
this.clipboard[clipboardIndex].hash ===
|
||
this.constructor.static.getClipboardHash( $elements )
|
||
) {
|
||
slice = this.clipboard[clipboardIndex].data;
|
||
}
|
||
}
|
||
}
|
||
|
||
if ( !slice ) {
|
||
// TODO: try to convert the HTML
|
||
if ( !beforePasteData.plain ) {
|
||
beforePasteData.plain = this.$pasteTarget.text();
|
||
}
|
||
slice = new ve.dm.ElementLinearDataSlice(
|
||
new ve.dm.IndexValueStore(),
|
||
ve.splitClusters(
|
||
// TODO: handle plain text line breaks better
|
||
beforePasteData.plain.replace( /\n+/gm, ' ' )
|
||
)
|
||
);
|
||
}
|
||
|
||
try {
|
||
// Try to paste in the orignal data
|
||
// Take a copy to prevent the data being annotated a second time in the catch block
|
||
// and to prevent actions in the data model affecting view.clipboard
|
||
pasteData = ve.copy( slice.getOriginalData() );
|
||
|
||
// Annotate
|
||
ve.dm.Document.static.addAnnotationsToData( pasteData, this.model.getInsertionAnnotations() );
|
||
|
||
// Transaction
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model,
|
||
selection.start,
|
||
pasteData
|
||
);
|
||
} catch ( err ) {
|
||
// If that fails, balance the data before pasting
|
||
// Take a copy to prevent actions in the data model affecting view.clipboard
|
||
pasteData = ve.copy( slice.getData() );
|
||
|
||
// Annotate
|
||
ve.dm.Document.static.addAnnotationsToData( pasteData, this.model.getInsertionAnnotations() );
|
||
|
||
// Transaction
|
||
tx = ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model,
|
||
selection.start,
|
||
pasteData
|
||
);
|
||
}
|
||
|
||
// Restore focus and scroll position
|
||
this.documentView.documentNode.$[0].focus();
|
||
$window.scrollTop( beforePasteData.scrollTop );
|
||
|
||
selection = tx.translateRange( selection );
|
||
this.model.change( tx, new ve.Range( selection.start ) );
|
||
// Move cursor to end of selection
|
||
this.model.change( null, new ve.Range( selection.end ) );
|
||
|
||
// Allow pasting again
|
||
this.pasting = false;
|
||
this.beforePasteData = null;
|
||
};
|
||
|
||
/**
|
||
* 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.incRenderLock();
|
||
try {
|
||
this.surfaceObserver.pollOnce();
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
this.surfaceObserver.startTimerLoop();
|
||
};
|
||
|
||
/*! 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, rangySel, rangyRange,
|
||
next = null,
|
||
previous = this.focusedNode;
|
||
|
||
if ( selection ) {
|
||
// Detect when only a single inline element is selected
|
||
if ( !selection.isCollapsed() ) {
|
||
start = this.documentView.getDocumentNode().getNodeFromOffset( selection.start + 1 );
|
||
if ( start.isFocusable() ) {
|
||
end = this.documentView.getDocumentNode().getNodeFromOffset( selection.end - 1 );
|
||
if ( start === end ) {
|
||
next = start;
|
||
}
|
||
}
|
||
} else {
|
||
// Check we haven't been programmatically placed inside a focusable node with a collapsed selection
|
||
start = this.documentView.getDocumentNode().getNodeFromOffset( selection.start );
|
||
if ( start.isFocusable() ) {
|
||
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;
|
||
// As FF won't fire a copy event with nothing selected, make
|
||
// a dummy selection of one space in the pasteTarget.
|
||
// onCopy will ignore this native selection and use the DM selection
|
||
this.$pasteTarget.text( ' ' );
|
||
rangySel = rangy.getSelection( this.getElementDocument() );
|
||
rangyRange = rangy.createRange( this.getElementDocument() );
|
||
rangyRange.setStart( this.$pasteTarget[0], 0 );
|
||
rangyRange.setEnd( this.$pasteTarget[0], 1 );
|
||
rangySel.removeAllRanges();
|
||
this.$pasteTarget[0].focus();
|
||
rangySel.addRange( rangyRange, false );
|
||
}
|
||
}
|
||
|
||
// If there is no focused node, use native selection, but ignore the selection if
|
||
// changeModelSelection is currently being called with the same (object-identical)
|
||
// selection object (i.e. if the model is calling us back)
|
||
if ( !this.focusedNode && !this.isRenderingLocked() && selection !== this.newModelSelection ) {
|
||
this.showSelection( selection );
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle selection change events.
|
||
*
|
||
* @see ve.ce.SurfaceObserver#pollOnce
|
||
*
|
||
* @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.incRenderLock();
|
||
try {
|
||
this.changeModelSelection( newRange );
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle content change events.
|
||
*
|
||
* @see ve.ce.SurfaceObserver#pollOnce
|
||
*
|
||
* @method
|
||
* @param {ve.ce.Node} node CE 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,
|
||
previousData, nextData,
|
||
i, length, annotation, annotationIndex, dataString,
|
||
annotationsLeft, annotationsRight,
|
||
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 = ve.splitClusters( next.text ).slice(
|
||
previous.range.start - nodeOffset - 1,
|
||
next.range.start - nodeOffset - 1
|
||
);
|
||
// Apply insertion annotations
|
||
annotations = this.model.getInsertionAnnotations();
|
||
if ( annotations instanceof ve.dm.AnnotationSet ) {
|
||
ve.dm.Document.static.addAnnotationsToData( data, this.model.getInsertionAnnotations() );
|
||
}
|
||
this.incRenderLock();
|
||
try {
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model, previous.range.start, data
|
||
),
|
||
next.range
|
||
);
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
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.incRenderLock();
|
||
try {
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromRemoval( this.documentView.model,
|
||
range ),
|
||
next.range
|
||
);
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
return;
|
||
}
|
||
}
|
||
|
||
// Complex change
|
||
|
||
previousData = ve.splitClusters( previous.text );
|
||
nextData = ve.splitClusters( next.text );
|
||
len = Math.min( previousData.length, nextData.length );
|
||
// Count same characters from left
|
||
while ( fromLeft < len && previousData[fromLeft] === nextData[fromLeft] ) {
|
||
++fromLeft;
|
||
}
|
||
// Count same characters from right
|
||
while (
|
||
fromRight < len - fromLeft &&
|
||
previousData[previousData.length - 1 - fromRight] ===
|
||
nextData[nextData.length - 1 - fromRight]
|
||
) {
|
||
++fromRight;
|
||
}
|
||
data = nextData.slice( fromLeft, nextData.length - fromRight );
|
||
// Get annotations to the left of new content and apply
|
||
annotations = this.model.getDocument().data.getAnnotationsFromOffset( nodeOffset + 1 + fromLeft );
|
||
if ( annotations.getLength() ) {
|
||
annotationsLeft = this.model.getDocument().data.getAnnotationsFromOffset( nodeOffset + fromLeft );
|
||
annotationsRight = this.model.getDocument().data.getAnnotationsFromOffset( nodeOffset + 1 + previousData.length - fromRight );
|
||
for ( i = 0, length = annotations.getLength(); i < length; i++ ) {
|
||
annotation = annotations.get( i );
|
||
annotationIndex = annotations.getIndex( i );
|
||
if ( annotation.constructor.static.splitOnWordbreak ) {
|
||
dataString = new ve.dm.DataString( nextData );
|
||
if (
|
||
// if no annotation to the right, check for wordbreak
|
||
(
|
||
!annotationsRight.containsIndex( annotationIndex ) &&
|
||
unicodeJS.wordbreak.isBreak( dataString, fromLeft )
|
||
) ||
|
||
// if no annotation to the left, check for wordbreak
|
||
(
|
||
!annotationsLeft.containsIndex( annotationIndex ) &&
|
||
unicodeJS.wordbreak.isBreak( dataString, nextData.length - fromRight )
|
||
)
|
||
) {
|
||
annotations.removeAt( i );
|
||
}
|
||
}
|
||
}
|
||
ve.dm.Document.static.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 < previousData.length ) {
|
||
this.model.change(
|
||
ve.dm.Transaction.newFromRemoval(
|
||
this.documentView.model,
|
||
new ve.Range(
|
||
data.length + nodeOffset + 1 + fromLeft,
|
||
data.length + nodeOffset + 1 +
|
||
previousData.length - fromRight
|
||
)
|
||
),
|
||
newRange
|
||
);
|
||
}
|
||
};
|
||
|
||
/**
|
||
* Handle surface lock events.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.onLock = function () {
|
||
this.surfaceObserver.locked = true;
|
||
};
|
||
|
||
/**
|
||
* Handle surface unlock events.
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.onUnlock = function () {
|
||
this.surfaceObserver.locked = false;
|
||
this.surfaceObserver.pollOnceNoEmit();
|
||
};
|
||
|
||
/*! 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, range, direction;
|
||
// 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();
|
||
// TODO: onDocumentKeyDown did this already
|
||
this.surfaceObserver.stopTimerLoop();
|
||
this.incRenderLock();
|
||
try {
|
||
// TODO: onDocumentKeyDown did this already
|
||
this.surfaceObserver.pollOnce();
|
||
} finally {
|
||
this.decRenderLock();
|
||
}
|
||
selection = this.model.getSelection();
|
||
if ( this.$$( e.target ).css( 'direction' ) === 'rtl' ) {
|
||
// If the language direction is RTL, switch left/right directions:
|
||
direction = e.keyCode === ve.Keys.LEFT ? 1 : -1;
|
||
} else {
|
||
direction = e.keyCode === ve.Keys.LEFT ? -1 : 1;
|
||
}
|
||
|
||
range = this.getDocument().getRelativeRange(
|
||
selection,
|
||
direction,
|
||
( e.altKey === true || e.ctrlKey === true ) ? 'word' : 'character',
|
||
e.shiftKey
|
||
);
|
||
this.model.change( null, range );
|
||
// TODO: onDocumentKeyDown does this anyway
|
||
this.surfaceObserver.startTimerLoop();
|
||
this.surfaceObserver.pollOnce();
|
||
};
|
||
|
||
/**
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.handleUpOrDownArrowKey = function ( e ) {
|
||
var selection, rangySelection, rangyRange, range, $element, nativeSel;
|
||
if ( !$.browser.msie ) {
|
||
// Firefox doesn't update its internal reference of the appropriate cursor position
|
||
// on the next or previous lines when the cursor is moved programmatically.
|
||
// By wiggling the selection, Firefox scraps its internal reference.
|
||
nativeSel = window.getSelection();
|
||
nativeSel.modify( 'extend', 'right', 'character' );
|
||
nativeSel.modify( 'extend', 'left', 'character' );
|
||
return;
|
||
}
|
||
// TODO: onDocumentKeyDown did this already
|
||
this.surfaceObserver.stopTimerLoop();
|
||
// TODO: onDocumentKeyDown did this already
|
||
this.surfaceObserver.pollOnce();
|
||
|
||
selection = this.model.getSelection();
|
||
rangySelection = rangy.getSelection( this.$document[0] );
|
||
// 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 = this.$$( '<span>' )
|
||
.html( ' ' )
|
||
.css( { 'width' : '0px', 'display' : 'none' } );
|
||
rangySelection.anchorNode.splitText( rangySelection.anchorOffset );
|
||
rangySelection.anchorNode.parentNode.insertBefore(
|
||
$element[0],
|
||
rangySelection.anchorNode.nextSibling
|
||
);
|
||
}
|
||
rangyRange = rangy.createRange( this.$document[0] );
|
||
rangyRange.selectNode( $element[0] );
|
||
rangySelection.setSingleRange( rangyRange );
|
||
setTimeout( ve.bind( function () {
|
||
if ( !$element.hasClass( 've-ce-branchNode-slug' ) ) {
|
||
$element.remove();
|
||
}
|
||
this.surfaceObserver.pollOnce();
|
||
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.pollOnce();
|
||
}, this ), 0 );
|
||
} else {
|
||
// TODO: onDocumentKeyDown does this anyway
|
||
this.surfaceObserver.startTimerLoop();
|
||
|
||
this.surfaceObserver.pollOnce();
|
||
}
|
||
};
|
||
|
||
/**
|
||
* 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 );
|
||
// Always pawn in a slug
|
||
if ( slug || this.needsPawn( selection, insertionAnnotations ) ) {
|
||
placeholder = '♙';
|
||
if ( !insertionAnnotations.isEmpty() ) {
|
||
placeholder = [placeholder, insertionAnnotations.getIndexes()];
|
||
}
|
||
// 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.stopTimerLoop();
|
||
this.surfaceObserver.pollOnce();
|
||
};
|
||
|
||
/**
|
||
* 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;
|
||
|
||
// 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
|
||
);
|
||
advanceCursor = false;
|
||
} 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();
|
||
if ( list.getChildren().length === 1 ) {
|
||
// The list item we're about to remove is the only child of the list
|
||
// Remove the list
|
||
tx = ve.dm.Transaction.newFromRemoval(
|
||
documentModel, list.getOuterRange()
|
||
);
|
||
} else {
|
||
// Remove the list item
|
||
tx = ve.dm.Transaction.newFromRemoval(
|
||
documentModel, outermostNode.getModel().getOuterRange()
|
||
);
|
||
this.model.change( tx );
|
||
selection = tx.translateRange( selection );
|
||
// 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 );
|
||
selection = tx.translateRange( selection );
|
||
|
||
// 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();
|
||
};
|
||
|
||
/**
|
||
* 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 rangeToRemove = this.model.getSelection(),
|
||
offset = 0,
|
||
docLength, tx, startNode, endNode, endNodeData, nodeToDelete;
|
||
|
||
if ( rangeToRemove.isCollapsed() ) {
|
||
// In case when the range is collapsed use the same logic that is used for cursor left and
|
||
// right movement in order to figure out range to remove.
|
||
rangeToRemove = this.getDocument().getRelativeRange(
|
||
rangeToRemove,
|
||
backspace ? -1 : 1,
|
||
( e.altKey === true || e.ctrlKey === true ) ? 'word' : 'character',
|
||
true
|
||
);
|
||
offset = rangeToRemove.start;
|
||
docLength = this.model.getDocument().data.getLength();
|
||
if ( offset < docLength ) {
|
||
while ( offset < docLength && this.model.getDocument().data.isCloseElementData( offset ) ) {
|
||
offset++;
|
||
}
|
||
// If the user tries to delete a focusable node from a collapsed selection,
|
||
// just select the node and cancel the deletion.
|
||
startNode = this.documentView.getDocumentNode().getNodeFromOffset( offset + 1 );
|
||
if ( startNode.isFocusable() ) {
|
||
this.model.change( null, startNode.getModel().getOuterRange() );
|
||
return;
|
||
}
|
||
}
|
||
if ( rangeToRemove.isCollapsed() ) {
|
||
// For instance beginning or end of the document.
|
||
return;
|
||
}
|
||
}
|
||
tx = ve.dm.Transaction.newFromRemoval( this.documentView.model, rangeToRemove );
|
||
this.model.change( tx );
|
||
rangeToRemove = tx.translateRange( rangeToRemove );
|
||
if ( !rangeToRemove.isCollapsed() ) {
|
||
// If after processing removal transaction range is not collapsed it means that not
|
||
// everything got merged nicely (at this moment transaction processor is capable of merging
|
||
// nodes of the same type and at the same depth level only), so we process with another
|
||
// merging that takes remaing data from endNode and inserts it at the end of startNode,
|
||
// endNode or recrusivly its parent (if have only one child) gets removed.
|
||
//
|
||
// If startNode has no content then we just delete that node instead of merging.
|
||
// This prevents content being inserted into empty structure which, e.g. and empty heading
|
||
// will be deleted, rather than "converting" the paragraph beneath to a heading.
|
||
|
||
endNode = this.documentView.getNodeFromOffset( rangeToRemove.end, false );
|
||
|
||
// If endNode is within our rangeToRemove, then we shouldn't delete it
|
||
if ( endNode.getModel().getRange().start >= rangeToRemove.end ) {
|
||
startNode = this.documentView.getNodeFromOffset( rangeToRemove.start, false );
|
||
if ( startNode.getModel().getRange().isCollapsed() ) {
|
||
// Remove startNode
|
||
this.model.change( [
|
||
ve.dm.Transaction.newFromRemoval(
|
||
this.documentView.model, startNode.getModel().getOuterRange()
|
||
)
|
||
] );
|
||
} else {
|
||
endNodeData = this.documentView.model.getData( endNode.getModel().getRange() );
|
||
nodeToDelete = endNode;
|
||
nodeToDelete.traverseUpstream( function ( node ) {
|
||
var parent = node.getParent();
|
||
if ( parent.children.length === 1 ) {
|
||
nodeToDelete = parent;
|
||
return true;
|
||
} else {
|
||
return false;
|
||
}
|
||
} );
|
||
// Move contents of endNode into startNode, and delete nodeToDelete
|
||
this.model.change( [
|
||
ve.dm.Transaction.newFromRemoval(
|
||
this.documentView.model, nodeToDelete.getModel().getOuterRange()
|
||
),
|
||
ve.dm.Transaction.newFromInsertion(
|
||
this.documentView.model, rangeToRemove.start, endNodeData
|
||
)
|
||
] );
|
||
}
|
||
}
|
||
}
|
||
this.model.change( null, new ve.Range( rangeToRemove.start ) );
|
||
this.surfaceObserver.clear();
|
||
};
|
||
|
||
/**
|
||
* 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( this.$document[0] ),
|
||
rangyRange = rangy.createRange( this.$document[0] );
|
||
|
||
range = new ve.Range(
|
||
this.getNearestCorrectOffset( range.from, -1 ),
|
||
this.getNearestCorrectOffset( range.to, 1 )
|
||
);
|
||
|
||
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 );
|
||
};
|
||
|
||
/**
|
||
* Append passed highlights to highlight container after emptying it first.
|
||
*
|
||
* @method
|
||
* @param {jQuery} $highlights Highlights to append
|
||
*/
|
||
ve.ce.Surface.prototype.replaceHighlight = function ( $highlights ) {
|
||
this.$highlights.empty().append( $highlights );
|
||
};
|
||
|
||
/*! 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 > 3 ) {
|
||
this.clickHistory.pop();
|
||
}
|
||
|
||
return response;
|
||
};
|
||
|
||
/**
|
||
* Checks if we need to pawn for insertionAnnotations based on the related annotationSet.
|
||
*
|
||
* "Related" is typically to the left, unless at the beginning of a node.
|
||
*
|
||
* We choose to pawn if the related annotationSet doesn't match insertionAnnotations, or if
|
||
* we are at the edge of an annotation that requires pawning (i.e. an annotation requiring pawning
|
||
* is present on the left but not on the right, or vice versa).
|
||
*
|
||
* @method
|
||
* @param {ve.Range} selection
|
||
* @param {ve.dm.AnnotationSet} insertionAnnotations
|
||
* @returns {boolean} Whether we need to pawn
|
||
*/
|
||
ve.ce.Surface.prototype.needsPawn = function ( selection, insertionAnnotations ) {
|
||
var leftAnnotations, rightAnnotations, documentModel = this.model.documentModel;
|
||
|
||
function isForced( annotation ) {
|
||
return ve.ce.annotationFactory.isAnnotationContinuationForced( annotation.constructor.static.name );
|
||
}
|
||
|
||
if ( selection.start > 0 ) {
|
||
leftAnnotations = documentModel.data.getAnnotationsFromOffset( selection.start - 1 );
|
||
}
|
||
if ( selection.start < documentModel.data.getLength() ) {
|
||
rightAnnotations = documentModel.data.getAnnotationsFromOffset( selection.start + 1 );
|
||
}
|
||
|
||
// Take annotations from the left
|
||
// TODO reorganize the logic in this function
|
||
if ( leftAnnotations && !leftAnnotations.compareTo( insertionAnnotations ) ) {
|
||
return true;
|
||
}
|
||
// At the beginning of a node, take from the right
|
||
if (
|
||
rangy.getSelection( this.$document[0] ).anchorOffset === 0 &&
|
||
rightAnnotations &&
|
||
!rightAnnotations.compareTo( insertionAnnotations )
|
||
) {
|
||
return true;
|
||
}
|
||
|
||
if (
|
||
leftAnnotations && rightAnnotations &&
|
||
!leftAnnotations.filter( isForced ).compareTo( rightAnnotations.filter( isForced ) )
|
||
) {
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
};
|
||
|
||
/*! Getters */
|
||
|
||
/**
|
||
* Get the top-level surface.
|
||
*
|
||
* @method
|
||
* @returns {ve.ui.Surface} Surface
|
||
*/
|
||
ve.ce.Surface.prototype.getSurface = function () {
|
||
return this.surface;
|
||
};
|
||
|
||
/**
|
||
* 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;
|
||
};
|
||
|
||
/**
|
||
* Get the currently focused node.
|
||
*
|
||
* @method
|
||
* @returns {ve.ce.Node|undefined} Focused node
|
||
*/
|
||
ve.ce.Surface.prototype.getFocusedNode = function () {
|
||
return this.focusedNode;
|
||
};
|
||
|
||
/**
|
||
* Check whether there are any render locks
|
||
*
|
||
* @method
|
||
* @returns {boolean} Render is locked
|
||
*/
|
||
ve.ce.Surface.prototype.isRenderingLocked = function () {
|
||
return this.renderLocks > 0;
|
||
};
|
||
|
||
/**
|
||
* Add a single render lock (to disable rendering)
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.incRenderLock = function () {
|
||
this.renderLocks++;
|
||
};
|
||
|
||
/**
|
||
* Remove a single render lock
|
||
*
|
||
* @method
|
||
*/
|
||
ve.ce.Surface.prototype.decRenderLock = function () {
|
||
this.renderLocks--;
|
||
};
|
||
|
||
/**
|
||
* Surface 'dir' property (Content-Level Direction)
|
||
* @returns {string} 'ltr' or 'rtl'
|
||
*/
|
||
ve.ce.Surface.prototype.getDir = function () {
|
||
return this.$.css( 'direction' );
|
||
};
|
||
|
||
/**
|
||
* Change selection in the model only, not the CE surface
|
||
*
|
||
* This avoids event storms when the CE surface is already correct
|
||
*
|
||
* @method
|
||
* @param {ve.Range} range New selection for model
|
||
* @throws {Error} If calls to the method are nested
|
||
*/
|
||
ve.ce.Surface.prototype.changeModelSelection = function ( range ) {
|
||
if ( this.newModelSelection !== null ) {
|
||
throw new Error( 'Nested changeModelSelection' );
|
||
}
|
||
this.newModelSelection = range;
|
||
try {
|
||
this.model.change( null, range );
|
||
} finally {
|
||
this.newModelSelection = null;
|
||
}
|
||
};
|