mirror of
https://github.com/UnickSoft/graphonline.git
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1765 lines
58 KiB
JavaScript
Executable File
1765 lines
58 KiB
JavaScript
Executable File
/**
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* @license Copyright (c) 2003-2013, CKSource - Frederico Knabben. All rights reserved.
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* For licensing, see LICENSE.md or http://ckeditor.com/license
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*/
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(function() {
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// #### checkSelectionChange : START
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// The selection change check basically saves the element parent tree of
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// the current node and check it on successive requests. If there is any
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// change on the tree, then the selectionChange event gets fired.
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function checkSelectionChange() {
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// Editor may have no selection at all.
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var sel = this.getSelection( 1 );
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if ( sel.getType() == CKEDITOR.SELECTION_NONE )
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return;
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this.fire( 'selectionCheck', sel );
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var currentPath = this.elementPath();
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if ( !currentPath.compare( this._.selectionPreviousPath ) ) {
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this._.selectionPreviousPath = currentPath;
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this.fire( 'selectionChange', { selection: sel, path: currentPath } );
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}
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}
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var checkSelectionChangeTimer, checkSelectionChangeTimeoutPending;
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function checkSelectionChangeTimeout() {
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// Firing the "OnSelectionChange" event on every key press started to
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// be too slow. This function guarantees that there will be at least
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// 200ms delay between selection checks.
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checkSelectionChangeTimeoutPending = true;
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if ( checkSelectionChangeTimer )
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return;
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checkSelectionChangeTimeoutExec.call( this );
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checkSelectionChangeTimer = CKEDITOR.tools.setTimeout( checkSelectionChangeTimeoutExec, 200, this );
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}
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function checkSelectionChangeTimeoutExec() {
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checkSelectionChangeTimer = null;
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if ( checkSelectionChangeTimeoutPending ) {
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// Call this with a timeout so the browser properly moves the
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// selection after the mouseup. It happened that the selection was
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// being moved after the mouseup when clicking inside selected text
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// with Firefox.
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CKEDITOR.tools.setTimeout( checkSelectionChange, 0, this );
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checkSelectionChangeTimeoutPending = false;
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}
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}
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// #### checkSelectionChange : END
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var isVisible = CKEDITOR.dom.walker.invisible( 1 );
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function rangeRequiresFix( range ) {
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function isTextCt( node, isAtEnd ) {
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if ( !node || node.type == CKEDITOR.NODE_TEXT )
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return false;
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var testRng = range.clone();
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return testRng[ 'moveToElementEdit' + ( isAtEnd ? 'End' : 'Start' ) ]( node );
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}
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// Range root must be the editable element, it's to avoid creating filler char
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// on any temporary internal selection.
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if ( !( range.root instanceof CKEDITOR.editable ) ) {
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return false;
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}
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var ct = range.startContainer;
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var previous = range.getPreviousNode( isVisible, null, ct ),
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next = range.getNextNode( isVisible, null, ct );
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// Any adjacent text container may absorb the cursor, e.g.
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// <p><strong>text</strong>^foo</p>
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// <p>foo^<strong>text</strong></p>
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// <div>^<p>foo</p></div>
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if ( isTextCt( previous ) || isTextCt( next, 1 ) )
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return true;
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// Empty block/inline element is also affected. <span>^</span>, <p>^</p> (#7222)
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if ( !( previous || next ) && !( ct.type == CKEDITOR.NODE_ELEMENT && ct.isBlockBoundary() && ct.getBogus() ) )
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return true;
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return false;
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}
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function createFillingChar( element ) {
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removeFillingChar( element, false );
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var fillingChar = element.getDocument().createText( '\u200B' );
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element.setCustomData( 'cke-fillingChar', fillingChar );
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return fillingChar;
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}
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function getFillingChar( element ) {
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return element.getCustomData( 'cke-fillingChar' );
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}
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// Checks if a filling char has been used, eventualy removing it (#1272).
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function checkFillingChar( element ) {
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var fillingChar = getFillingChar( element );
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if ( fillingChar ) {
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// Use this flag to avoid removing the filling char right after
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// creating it.
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if ( fillingChar.getCustomData( 'ready' ) )
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removeFillingChar( element );
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else
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fillingChar.setCustomData( 'ready', 1 );
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}
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}
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function removeFillingChar( element, keepSelection ) {
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var fillingChar = element && element.removeCustomData( 'cke-fillingChar' );
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if ( fillingChar ) {
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// Text selection position might get mangled by
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// subsequent dom modification, save it now for restoring. (#8617)
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if ( keepSelection !== false )
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{
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var bm,
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doc = element.getDocument(),
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sel = doc.getSelection().getNative(),
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// Be error proof.
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range = sel && sel.type != 'None' && sel.getRangeAt( 0 );
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if ( fillingChar.getLength() > 1 && range && range.intersectsNode( fillingChar.$ ) ) {
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bm = [ sel.anchorOffset, sel.focusOffset ];
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// Anticipate the offset change brought by the removed char.
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var startAffected = sel.anchorNode == fillingChar.$ && sel.anchorOffset > 0,
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endAffected = sel.focusNode == fillingChar.$ && sel.focusOffset > 0;
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startAffected && bm[ 0 ]--;
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endAffected && bm[ 1 ]--;
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// Revert the bookmark order on reverse selection.
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isReversedSelection( sel ) && bm.unshift( bm.pop() );
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}
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}
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// We can't simply remove the filling node because the user
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// will actually enlarge it when typing, so we just remove the
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// invisible char from it.
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fillingChar.setText( replaceFillingChar( fillingChar.getText() ) );
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// Restore the bookmark.
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if ( bm ) {
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var rng = sel.getRangeAt( 0 );
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rng.setStart( rng.startContainer, bm[ 0 ] );
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rng.setEnd( rng.startContainer, bm[ 1 ] );
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sel.removeAllRanges();
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sel.addRange( rng );
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}
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}
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}
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function replaceFillingChar( html ) {
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return html.replace( /\u200B( )?/g, function( match ) {
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// #10291 if filling char is followed by a space replace it with nbsp.
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return match[ 1 ] ? '\xa0' : '';
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} );
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}
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function isReversedSelection( sel ) {
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if ( !sel.isCollapsed ) {
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var range = sel.getRangeAt( 0 );
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// Potentially alter an reversed selection range.
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range.setStart( sel.anchorNode, sel.anchorOffset );
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range.setEnd( sel.focusNode, sel.focusOffset );
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return range.collapsed;
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}
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}
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// Read the comments in selection constructor.
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function fixInitialSelection( root, nativeSel, doFocus ) {
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// It may happen that setting proper selection will
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// cause focus to be fired (even without actually focusing root).
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// Cancel it because focus shouldn't be fired when retriving selection. (#10115)
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var listener = root.on( 'focus', function( evt ) {
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evt.cancel();
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}, null, null, -100 );
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// FF && Webkit.
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if ( !CKEDITOR.env.ie ) {
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var range = new CKEDITOR.dom.range( root );
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range.moveToElementEditStart( root );
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var nativeRange = root.getDocument().$.createRange();
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nativeRange.setStart( range.startContainer.$, range.startOffset );
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nativeRange.collapse( 1 );
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nativeSel.removeAllRanges();
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nativeSel.addRange( nativeRange );
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}
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else {
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// IE in specific case may also fire selectionchange.
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// We cannot block bubbling selectionchange, so at least we
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// can prevent from falling into inf recursion caused by fix for #9699
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// (see wysiwygarea plugin).
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// http://dev.ckeditor.com/ticket/10438#comment:13
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var listener2 = root.getDocument().on( 'selectionchange', function( evt ) {
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evt.cancel();
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}, null, null, -100 );
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}
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doFocus && root.focus();
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listener.removeListener();
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listener2 && listener2.removeListener();
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}
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// Setup all editor instances for the necessary selection hooks.
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CKEDITOR.on( 'instanceCreated', function( ev ) {
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var editor = ev.editor;
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/**
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* @event selectionChange
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*
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* @member CKEDITOR.editor
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* @param {CKEDITOR.editor} editor This editor instance.
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* @param data
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* @param {CKEDITOR.dom.selection} data.selection
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* @param {CKEDITOR.dom.elementPath} data.path
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*/
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editor.define( 'selectionChange', { errorProof:1 } );
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editor.on( 'contentDom', function() {
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var doc = editor.document,
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outerDoc = CKEDITOR.document,
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editable = editor.editable(),
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body = doc.getBody(),
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html = doc.getDocumentElement();
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var isInline = editable.isInline();
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var restoreSel;
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// Give the editable an initial selection on first focus,
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// put selection at a consistent position at the start
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// of the contents. (#9507)
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if ( CKEDITOR.env.gecko ) {
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editable.attachListener( editable, 'focus', function( evt ) {
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evt.removeListener();
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if ( restoreSel !== 0 ) {
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var nativ = editor.getSelection().getNative();
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// Do it only if the native selection is at an unwanted
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// place (at the very start of the editable). #10119
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if ( nativ.isCollapsed && nativ.anchorNode == editable.$ ) {
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var rng = editor.createRange();
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rng.moveToElementEditStart( editable );
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rng.select();
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}
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}
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}, null, null, -2 );
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}
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// Plays the magic here to restore/save dom selection on editable focus/blur.
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editable.attachListener( editable, 'focus', function() {
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editor.unlockSelection( restoreSel );
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restoreSel = 0;
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}, null, null, -1 );
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// Disable selection restoring when clicking in.
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editable.attachListener( editable, 'mousedown', function() {
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restoreSel = 0;
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});
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// Browsers could loose the selection once the editable lost focus,
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// in such case we need to reproduce it by saving a locked selection
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// and restoring it upon focus gain.
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if ( CKEDITOR.env.ie || CKEDITOR.env.opera || isInline ) {
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var lastSel;
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// Save a fresh copy of the selection.
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function saveSel() {
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lastSel = editor.getSelection( 1 );
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lastSel.lock();
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}
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// For old IEs, we can retrieve the last correct DOM selection upon the "beforedeactivate" event.
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// For the rest, a more frequent check is required for each selection change made.
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if ( isMSSelection )
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editable.attachListener( editable, 'beforedeactivate', saveSel, null, null, -1 );
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else
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editable.attachListener( editor, 'selectionCheck', saveSel, null, null, -1 );
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editable.attachListener( editable, 'blur', function() {
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editor.lockSelection( lastSel );
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restoreSel = 1;
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}, null, null, -1 );
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}
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// The following selection related fixes applies to only framed editable.
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if ( CKEDITOR.env.ie && !isInline ) {
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var scroll;
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editable.attachListener( editable, 'mousedown', function( evt ) {
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// IE scrolls document to top on right mousedown
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// when editor has no focus, remember this scroll
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// position and revert it before context menu opens. (#5778)
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if ( evt.data.$.button == 2 ) {
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var sel = editor.document.$.selection;
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if ( sel.type == 'None' )
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scroll = editor.window.getScrollPosition();
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}
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});
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editable.attachListener( editable, 'mouseup', function( evt ) {
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// Restore recorded scroll position when needed on right mouseup.
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if ( evt.data.$.button == 2 && scroll ) {
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editor.document.$.documentElement.scrollLeft = scroll.x;
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editor.document.$.documentElement.scrollTop = scroll.y;
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}
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scroll = null;
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});
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// When content doc is in standards mode, IE doesn't focus the editor when
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// clicking at the region below body (on html element) content, we emulate
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// the normal behavior on old IEs. (#1659, #7932)
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if ( doc.$.compatMode != 'BackCompat' ) {
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if ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) {
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function moveRangeToPoint( range, x, y ) {
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// Error prune in IE7. (#9034, #9110)
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try { range.moveToPoint( x, y ); } catch ( e ) {}
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}
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html.on( 'mousedown', function( evt ) {
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evt = evt.data;
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// Expand the text range along with mouse move.
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function onHover( evt ) {
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evt = evt.data.$;
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if ( textRng ) {
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// Read the current cursor.
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var rngEnd = body.$.createTextRange();
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moveRangeToPoint( rngEnd, evt.x, evt.y );
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// Handle drag directions.
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textRng.setEndPoint(
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startRng.compareEndPoints( 'StartToStart', rngEnd ) < 0 ?
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'EndToEnd' : 'StartToStart', rngEnd );
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// Update selection with new range.
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textRng.select();
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}
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}
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function removeListeners() {
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outerDoc.removeListener( 'mouseup', onSelectEnd );
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html.removeListener( 'mouseup', onSelectEnd );
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}
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function onSelectEnd() {
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html.removeListener( 'mousemove', onHover );
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removeListeners();
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// Make it in effect on mouse up. (#9022)
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textRng.select();
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}
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// We're sure that the click happens at the region
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// below body, but not on scrollbar.
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if ( evt.getTarget().is( 'html' ) &&
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evt.$.y < html.$.clientHeight &&
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evt.$.x < html.$.clientWidth ) {
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// Start to build the text range.
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var textRng = body.$.createTextRange();
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moveRangeToPoint( textRng, evt.$.x, evt.$.y );
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// Records the dragging start of the above text range.
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var startRng = textRng.duplicate();
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html.on( 'mousemove', onHover );
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outerDoc.on( 'mouseup', onSelectEnd );
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html.on( 'mouseup', onSelectEnd );
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}
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});
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}
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// It's much simpler for IE8+, we just need to reselect the reported range.
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if ( CKEDITOR.env.version > 7 ) {
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html.on( 'mousedown', function( evt ) {
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if ( evt.data.getTarget().is( 'html' ) ) {
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// Limit the text selection mouse move inside of editable. (#9715)
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outerDoc.on( 'mouseup', onSelectEnd );
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html.on( 'mouseup', onSelectEnd );
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}
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});
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function removeListeners() {
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outerDoc.removeListener( 'mouseup', onSelectEnd );
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html.removeListener( 'mouseup', onSelectEnd );
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}
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function onSelectEnd() {
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removeListeners();
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// The event is not fired when clicking on the scrollbars,
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// so we can safely check the following to understand
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// whether the empty space following <body> has been clicked.
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var sel = CKEDITOR.document.$.selection,
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range = sel.createRange();
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// The selection range is reported on host, but actually it should applies to the content doc.
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if ( sel.type != 'None' && range.parentElement().ownerDocument == doc.$ )
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range.select();
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}
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}
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}
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}
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// We check the selection change:
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// 1. Upon "selectionchange" event from the editable element. (which might be faked event fired by our code)
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// 2. After the accomplish of keyboard and mouse events.
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editable.attachListener( editable, 'selectionchange', checkSelectionChange, editor );
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editable.attachListener( editable, 'keyup', checkSelectionChangeTimeout, editor );
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// Always fire the selection change on focus gain.
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editable.attachListener( editable, 'focus', function() {
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editor.forceNextSelectionCheck();
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editor.selectionChange( 1 );
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});
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// #9699: On Webkit&Gecko in inline editor and on Opera in framed editor we have to check selection
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// when it was changed by dragging and releasing mouse button outside editable. Dragging (mousedown)
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// has to be initialized in editable, but for mouseup we listen on document element.
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// On Opera, listening on document element, helps even if mouse button is released outside iframe.
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if ( isInline ? ( CKEDITOR.env.webkit || CKEDITOR.env.gecko ) : CKEDITOR.env.opera ) {
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var mouseDown;
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editable.attachListener( editable, 'mousedown', function() {
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mouseDown = 1;
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});
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editable.attachListener( doc.getDocumentElement(), 'mouseup', function() {
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if ( mouseDown )
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checkSelectionChangeTimeout.call( editor );
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mouseDown = 0;
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});
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}
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// In all other cases listen on simple mouseup over editable, as we did before #9699.
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//
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// Use document instead of editable in non-IEs for observing mouseup
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// since editable won't fire the event if selection process started within iframe and ended out
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// of the editor (#9851).
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else
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editable.attachListener( CKEDITOR.env.ie ? editable : doc.getDocumentElement(), 'mouseup', checkSelectionChangeTimeout, editor );
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if ( CKEDITOR.env.webkit ) {
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// Before keystroke is handled by editor, check to remove the filling char.
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editable.attachListener( doc, 'keydown', function( evt ) {
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var key = evt.data.getKey();
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// Remove the filling char before some keys get
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// executed, so they'll not get blocked by it.
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switch ( key ) {
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case 13: // ENTER
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case 33: // PAGEUP
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case 34: // PAGEDOWN
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case 35: // HOME
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case 36: // END
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case 37: // LEFT-ARROW
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case 39: // RIGHT-ARROW
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case 8: // BACKSPACE
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case 45: // INS
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case 46: // DEl
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removeFillingChar( editable );
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}
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}, null, null, -1 );
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}
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});
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// Clear the cached range path before unload. (#7174)
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editor.on( 'contentDomUnload', editor.forceNextSelectionCheck, editor );
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// Check selection change on data reload.
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editor.on( 'dataReady', function() {
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editor.selectionChange( 1 );
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});
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function clearSelection() {
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var sel = editor.getSelection();
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sel && sel.removeAllRanges();
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}
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// Clear dom selection before editable destroying to fix some browser
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// craziness.
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// IE9 might cease to work if there's an object selection inside the iframe (#7639).
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CKEDITOR.env.ie9Compat && editor.on( 'beforeDestroy', clearSelection, null, null, 9 );
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// Webkit's selection will mess up after the data loading.
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CKEDITOR.env.webkit && editor.on( 'setData', clearSelection );
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// Invalidate locked selection when unloading DOM (e.g. after setData). (#9521)
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editor.on( 'contentDomUnload', function() {
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editor.unlockSelection();
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});
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|
});
|
|
|
|
CKEDITOR.on( 'instanceReady', function( evt ) {
|
|
var editor = evt.editor;
|
|
|
|
// On WebKit only, we need a special "filling" char on some situations
|
|
// (#1272). Here we set the events that should invalidate that char.
|
|
if ( CKEDITOR.env.webkit ) {
|
|
editor.on( 'selectionChange', function() {
|
|
checkFillingChar( editor.editable() );
|
|
}, null, null, -1 );
|
|
editor.on( 'beforeSetMode', function() {
|
|
removeFillingChar( editor.editable() );
|
|
}, null, null, -1 );
|
|
|
|
var fillingCharBefore, resetSelection;
|
|
|
|
function beforeData() {
|
|
var editable = editor.editable();
|
|
if ( !editable )
|
|
return;
|
|
|
|
var fillingChar = getFillingChar( editable );
|
|
|
|
if ( fillingChar ) {
|
|
// If cursor is right blinking by side of the filler node, save it for restoring,
|
|
// as the following text substitution will blind it. (#7437)
|
|
var sel = editor.document.$.defaultView.getSelection();
|
|
if ( sel.type == 'Caret' && sel.anchorNode == fillingChar.$ )
|
|
resetSelection = 1;
|
|
|
|
fillingCharBefore = fillingChar.getText();
|
|
fillingChar.setText( replaceFillingChar( fillingCharBefore ) );
|
|
}
|
|
}
|
|
|
|
function afterData() {
|
|
var editable = editor.editable();
|
|
if ( !editable )
|
|
return;
|
|
|
|
var fillingChar = getFillingChar( editable );
|
|
|
|
if ( fillingChar ) {
|
|
fillingChar.setText( fillingCharBefore );
|
|
|
|
if ( resetSelection ) {
|
|
editor.document.$.defaultView.getSelection().setPosition( fillingChar.$, fillingChar.getLength() );
|
|
resetSelection = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
editor.on( 'beforeUndoImage', beforeData );
|
|
editor.on( 'afterUndoImage', afterData );
|
|
editor.on( 'beforeGetData', beforeData, null, null, 0 );
|
|
editor.on( 'getData', afterData );
|
|
}
|
|
});
|
|
|
|
/**
|
|
* Check the selection change in editor and potentially fires
|
|
* the {@link CKEDITOR.editor#event-selectionChange} event.
|
|
*
|
|
* @method
|
|
* @member CKEDITOR.editor
|
|
* @param {Boolean} [checkNow=false] Force the check to happen immediately
|
|
* instead of coming with a timeout delay (default).
|
|
*/
|
|
CKEDITOR.editor.prototype.selectionChange = function( checkNow ) {
|
|
( checkNow ? checkSelectionChange : checkSelectionChangeTimeout ).call( this );
|
|
};
|
|
|
|
/**
|
|
* Retrieve the editor selection in scope of editable element.
|
|
*
|
|
* **Note:** Since the native browser selection provides only one single
|
|
* selection at a time per document, so if editor's editable element has lost focus,
|
|
* this method will return a null value unless the {@link CKEDITOR.editor#lockSelection}
|
|
* has been called beforehand so the saved selection is retrieved.
|
|
*
|
|
* var selection = CKEDITOR.instances.editor1.getSelection();
|
|
* alert( selection.getType() );
|
|
*
|
|
* @method
|
|
* @member CKEDITOR.editor
|
|
* @param {Boolean} forceRealSelection
|
|
* @returns {CKEDITOR.dom.selection} A selection object or null if not available for the moment.
|
|
* @todo param
|
|
*/
|
|
CKEDITOR.editor.prototype.getSelection = function( forceRealSelection ) {
|
|
// Check if there exists a locked selection.
|
|
if ( this._.savedSelection && !forceRealSelection )
|
|
return this._.savedSelection;
|
|
|
|
// Editable element might be absent.
|
|
var editable = this.editable();
|
|
return editable ? new CKEDITOR.dom.selection( editable ) : null;
|
|
};
|
|
|
|
/**
|
|
* Locks the selection made in the editor in order to make it possible to
|
|
* manipulate it without browser interference. A locked selection is
|
|
* cached and remains unchanged until it is released with the
|
|
* {@link CKEDITOR.editor#unlockSelection} method.
|
|
*
|
|
* @method
|
|
* @member CKEDITOR.editor
|
|
* @param {CKEDITOR.dom.selection} [sel] Specify the selection to be locked.
|
|
* @returns {Boolean} `true` if selection was locked.
|
|
*/
|
|
CKEDITOR.editor.prototype.lockSelection = function( sel ) {
|
|
sel = sel || this.getSelection( 1 );
|
|
if ( sel.getType() != CKEDITOR.SELECTION_NONE ) {
|
|
!sel.isLocked && sel.lock();
|
|
this._.savedSelection = sel;
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Unlocks the selection made in the editor and locked with the
|
|
* {@link CKEDITOR.editor#unlockSelection} method. An unlocked selection
|
|
* is no longer cached and can be changed.
|
|
*
|
|
* @method
|
|
* @member CKEDITOR.editor
|
|
* @param {Boolean} [restore] If set to `true`, the selection is
|
|
* restored back to the selection saved earlier by using the
|
|
* {@link CKEDITOR.dom.selection#lock} method.
|
|
*/
|
|
CKEDITOR.editor.prototype.unlockSelection = function( restore ) {
|
|
var sel = this._.savedSelection;
|
|
if ( sel ) {
|
|
sel.unlock( restore );
|
|
delete this._.savedSelection;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* @method
|
|
* @member CKEDITOR.editor
|
|
* @todo
|
|
*/
|
|
CKEDITOR.editor.prototype.forceNextSelectionCheck = function() {
|
|
delete this._.selectionPreviousPath;
|
|
};
|
|
|
|
/**
|
|
* Gets the current selection in context of the document's body element.
|
|
*
|
|
* var selection = CKEDITOR.instances.editor1.document.getSelection();
|
|
* alert( selection.getType() );
|
|
*
|
|
* @method
|
|
* @member CKEDITOR.dom.document
|
|
* @returns {CKEDITOR.dom.selection} A selection object.
|
|
*/
|
|
CKEDITOR.dom.document.prototype.getSelection = function() {
|
|
return new CKEDITOR.dom.selection( this );
|
|
};
|
|
|
|
/**
|
|
* Select this range as the only one with {@link CKEDITOR.dom.selection#selectRanges}.
|
|
*
|
|
* @method
|
|
* @returns {CKEDITOR.dom.selection}
|
|
* @member CKEDITOR.dom.range
|
|
*/
|
|
CKEDITOR.dom.range.prototype.select = function() {
|
|
var sel = this.root instanceof CKEDITOR.editable ? this.root.editor.getSelection() : new CKEDITOR.dom.selection( this.root );
|
|
|
|
sel.selectRanges( [ this ] );
|
|
|
|
return sel;
|
|
};
|
|
|
|
/**
|
|
* No selection.
|
|
*
|
|
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_NONE )
|
|
* alert( 'Nothing is selected' );
|
|
*
|
|
* @readonly
|
|
* @property {Number} [=1]
|
|
* @member CKEDITOR
|
|
*/
|
|
CKEDITOR.SELECTION_NONE = 1;
|
|
|
|
/**
|
|
* A text or a collapsed selection.
|
|
*
|
|
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT )
|
|
* alert( 'A text is selected' );
|
|
*
|
|
* @readonly
|
|
* @property {Number} [=2]
|
|
* @member CKEDITOR
|
|
*/
|
|
CKEDITOR.SELECTION_TEXT = 2;
|
|
|
|
/**
|
|
* Element selection.
|
|
*
|
|
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_ELEMENT )
|
|
* alert( 'An element is selected' );
|
|
*
|
|
* @readonly
|
|
* @property {Number} [=3]
|
|
* @member CKEDITOR
|
|
*/
|
|
CKEDITOR.SELECTION_ELEMENT = 3;
|
|
|
|
var isMSSelection = typeof window.getSelection != 'function';
|
|
|
|
/**
|
|
* Manipulates the selection within a DOM element, if the current browser selection
|
|
* spans outside of the element, an empty selection object is returned.
|
|
*
|
|
* var sel = new CKEDITOR.dom.selection( CKEDITOR.document );
|
|
*
|
|
* @class
|
|
* @constructor Creates a selection class instance.
|
|
* @param {CKEDITOR.dom.document} target The DOM document/element that the DOM selection
|
|
* is restrained to, only selection spans within the target element is considered as valid.
|
|
*/
|
|
CKEDITOR.dom.selection = function( target ) {
|
|
var isElement = target instanceof CKEDITOR.dom.element,
|
|
root;
|
|
|
|
this.document = target instanceof CKEDITOR.dom.document ? target : target.getDocument();
|
|
this.root = root = isElement ? target : this.document.getBody();
|
|
this.isLocked = 0;
|
|
this._ = {
|
|
cache: {}
|
|
};
|
|
|
|
// On WebKit, it may happen that we've already have focus
|
|
// on the editable element while still having no selection
|
|
// available. We normalize it here by replicating the
|
|
// behavior of other browsers.
|
|
//
|
|
// Webkit's condition covers also the case when editable hasn't been focused
|
|
// at all. Thanks to this hack Webkit always has selection in the right place.
|
|
//
|
|
// On FF and IE we only fix the first case, when editable was activated
|
|
// but the selection is broken - usually this happens after setData if editor was focused.
|
|
|
|
var sel = isMSSelection ? this.document.$.selection : this.document.getWindow().$.getSelection();
|
|
|
|
if ( CKEDITOR.env.webkit ) {
|
|
if ( sel.type == 'None' && this.document.getActive().equals( root ) || sel.type == 'Caret' && sel.anchorNode.nodeType == CKEDITOR.NODE_DOCUMENT )
|
|
fixInitialSelection( root, sel );
|
|
}
|
|
else if ( CKEDITOR.env.gecko ) {
|
|
if ( sel && this.document.getActive().equals( root ) &&
|
|
sel.anchorNode && sel.anchorNode.nodeType == CKEDITOR.NODE_DOCUMENT )
|
|
fixInitialSelection( root, sel, true );
|
|
}
|
|
else if ( CKEDITOR.env.ie ) {
|
|
var active;
|
|
|
|
// IE8,9 throw unspecified error when trying to access document.$.activeElement.
|
|
try {
|
|
active = this.document.getActive();
|
|
} catch ( e ) {}
|
|
|
|
// IEs 9+.
|
|
if ( !isMSSelection ) {
|
|
var anchorNode = sel && sel.anchorNode;
|
|
|
|
if ( anchorNode )
|
|
anchorNode = new CKEDITOR.dom.node( anchorNode );
|
|
|
|
if ( active && active.equals( this.document.getDocumentElement() ) &&
|
|
anchorNode && ( root.equals( anchorNode ) || root.contains( anchorNode ) ) )
|
|
fixInitialSelection( root, null, true );
|
|
}
|
|
// IEs 7&8.
|
|
else if ( sel.type == 'None' && active && active.equals( this.document.getDocumentElement() ) )
|
|
fixInitialSelection( root, null, true );
|
|
}
|
|
|
|
// Check whether browser focus is really inside of the editable element.
|
|
|
|
var nativeSel = this.getNative(),
|
|
rangeParent,
|
|
range;
|
|
|
|
if ( nativeSel ) {
|
|
if ( nativeSel.getRangeAt ) {
|
|
range = nativeSel.rangeCount && nativeSel.getRangeAt( 0 );
|
|
rangeParent = range && new CKEDITOR.dom.node( range.commonAncestorContainer );
|
|
}
|
|
// For old IEs.
|
|
else {
|
|
// Sometimes, mostly when selection is close to the table or hr,
|
|
// IE throws "Unspecified error".
|
|
try {
|
|
range = nativeSel.createRange();
|
|
} catch ( err ) {}
|
|
rangeParent = range && CKEDITOR.dom.element.get( range.item && range.item( 0 ) || range.parentElement() );
|
|
}
|
|
}
|
|
|
|
// Selection out of concerned range, empty the selection.
|
|
if ( !( rangeParent && ( root.equals( rangeParent ) || root.contains( rangeParent ) ) ) ) {
|
|
this._.cache.type = CKEDITOR.SELECTION_NONE;
|
|
this._.cache.startElement = null;
|
|
this._.cache.selectedElement = null;
|
|
this._.cache.selectedText = '';
|
|
this._.cache.ranges = new CKEDITOR.dom.rangeList();
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
var styleObjectElements = { img:1,hr:1,li:1,table:1,tr:1,td:1,th:1,embed:1,object:1,ol:1,ul:1,a:1,input:1,form:1,select:1,textarea:1,button:1,fieldset:1,thead:1,tfoot:1 };
|
|
|
|
CKEDITOR.dom.selection.prototype = {
|
|
/**
|
|
* Gets the native selection object from the browser.
|
|
*
|
|
* var selection = editor.getSelection().getNative();
|
|
*
|
|
* @returns {Object} The native browser selection object.
|
|
*/
|
|
getNative: function() {
|
|
if ( this._.cache.nativeSel !== undefined )
|
|
return this._.cache.nativeSel;
|
|
|
|
return ( this._.cache.nativeSel = isMSSelection ? this.document.$.selection : this.document.getWindow().$.getSelection() );
|
|
},
|
|
|
|
/**
|
|
* Gets the type of the current selection. The following values are
|
|
* available:
|
|
*
|
|
* * {@link CKEDITOR#SELECTION_NONE} (1): No selection.
|
|
* * {@link CKEDITOR#SELECTION_TEXT} (2): A text or a collapsed selection is selected.
|
|
* * {@link CKEDITOR#SELECTION_ELEMENT} (3): An element is selected.
|
|
*
|
|
* Example:
|
|
*
|
|
* if ( editor.getSelection().getType() == CKEDITOR.SELECTION_TEXT )
|
|
* alert( 'A text is selected' );
|
|
*
|
|
* @method
|
|
* @returns {Number} One of the following constant values: {@link CKEDITOR#SELECTION_NONE},
|
|
* {@link CKEDITOR#SELECTION_TEXT} or {@link CKEDITOR#SELECTION_ELEMENT}.
|
|
*/
|
|
getType: isMSSelection ?
|
|
function() {
|
|
var cache = this._.cache;
|
|
if ( cache.type )
|
|
return cache.type;
|
|
|
|
var type = CKEDITOR.SELECTION_NONE;
|
|
|
|
try {
|
|
var sel = this.getNative(),
|
|
ieType = sel.type;
|
|
|
|
if ( ieType == 'Text' )
|
|
type = CKEDITOR.SELECTION_TEXT;
|
|
|
|
if ( ieType == 'Control' )
|
|
type = CKEDITOR.SELECTION_ELEMENT;
|
|
|
|
// It is possible that we can still get a text range
|
|
// object even when type == 'None' is returned by IE.
|
|
// So we'd better check the object returned by
|
|
// createRange() rather than by looking at the type.
|
|
if ( sel.createRange().parentElement() )
|
|
type = CKEDITOR.SELECTION_TEXT;
|
|
} catch ( e ) {}
|
|
|
|
return ( cache.type = type );
|
|
} : function() {
|
|
var cache = this._.cache;
|
|
if ( cache.type )
|
|
return cache.type;
|
|
|
|
var type = CKEDITOR.SELECTION_TEXT;
|
|
|
|
var sel = this.getNative();
|
|
|
|
if ( !( sel && sel.rangeCount ) )
|
|
type = CKEDITOR.SELECTION_NONE;
|
|
else if ( sel.rangeCount == 1 ) {
|
|
// Check if the actual selection is a control (IMG,
|
|
// TABLE, HR, etc...).
|
|
|
|
var range = sel.getRangeAt( 0 ),
|
|
startContainer = range.startContainer;
|
|
|
|
if ( startContainer == range.endContainer && startContainer.nodeType == 1 && ( range.endOffset - range.startOffset ) == 1 && styleObjectElements[ startContainer.childNodes[ range.startOffset ].nodeName.toLowerCase() ] ) {
|
|
type = CKEDITOR.SELECTION_ELEMENT;
|
|
}
|
|
}
|
|
|
|
return ( cache.type = type );
|
|
},
|
|
|
|
/**
|
|
* Retrieves the {@link CKEDITOR.dom.range} instances that represent the current selection.
|
|
*
|
|
* Note: Some browsers return multiple ranges even for a continuous selection. Firefox, for example, returns
|
|
* one range for each table cell when one or more table rows are selected.
|
|
*
|
|
* var ranges = selection.getRanges();
|
|
* alert( ranges.length );
|
|
*
|
|
* @method
|
|
* @param {Boolean} [onlyEditables] If set to `true`, this function retrives editable ranges only.
|
|
* @returns {Array} Range instances that represent the current selection.
|
|
*/
|
|
getRanges: (function() {
|
|
var func = isMSSelection ? ( function() {
|
|
function getNodeIndex( node ) {
|
|
return new CKEDITOR.dom.node( node ).getIndex();
|
|
}
|
|
|
|
// Finds the container and offset for a specific boundary
|
|
// of an IE range.
|
|
var getBoundaryInformation = function( range, start ) {
|
|
// Creates a collapsed range at the requested boundary.
|
|
range = range.duplicate();
|
|
range.collapse( start );
|
|
|
|
// Gets the element that encloses the range entirely.
|
|
var parent = range.parentElement(),
|
|
doc = parent.ownerDocument;
|
|
|
|
// Empty parent element, e.g. <i>^</i>
|
|
if ( !parent.hasChildNodes() )
|
|
return { container: parent, offset: 0 };
|
|
|
|
var siblings = parent.children,
|
|
child, sibling,
|
|
testRange = range.duplicate(),
|
|
startIndex = 0,
|
|
endIndex = siblings.length - 1,
|
|
index = -1,
|
|
position, distance, container;
|
|
|
|
// Binary search over all element childs to test the range to see whether
|
|
// range is right on the boundary of one element.
|
|
while ( startIndex <= endIndex ) {
|
|
index = Math.floor( ( startIndex + endIndex ) / 2 );
|
|
child = siblings[ index ];
|
|
testRange.moveToElementText( child );
|
|
position = testRange.compareEndPoints( 'StartToStart', range );
|
|
|
|
if ( position > 0 )
|
|
endIndex = index - 1;
|
|
else if ( position < 0 )
|
|
startIndex = index + 1;
|
|
else {
|
|
// IE9 report wrong measurement with compareEndPoints when range anchors between two BRs.
|
|
// e.g. <p>text<br />^<br /></p> (#7433)
|
|
if ( CKEDITOR.env.ie9Compat && child.tagName == 'BR' ) {
|
|
// "Fall back" to w3c selection.
|
|
var sel = doc.defaultView.getSelection();
|
|
return {
|
|
container: sel[ start ? 'anchorNode' : 'focusNode' ],
|
|
offset: sel[ start ? 'anchorOffset' : 'focusOffset' ] };
|
|
} else
|
|
return { container: parent, offset: getNodeIndex( child ) };
|
|
}
|
|
}
|
|
|
|
// All childs are text nodes,
|
|
// or to the right hand of test range are all text nodes. (#6992)
|
|
if ( index == -1 || index == siblings.length - 1 && position < 0 ) {
|
|
// Adapt test range to embrace the entire parent contents.
|
|
testRange.moveToElementText( parent );
|
|
testRange.setEndPoint( 'StartToStart', range );
|
|
|
|
// IE report line break as CRLF with range.text but
|
|
// only LF with textnode.nodeValue, normalize them to avoid
|
|
// breaking character counting logic below. (#3949)
|
|
distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;
|
|
|
|
siblings = parent.childNodes;
|
|
|
|
// Actual range anchor right beside test range at the boundary of text node.
|
|
if ( !distance ) {
|
|
child = siblings[ siblings.length - 1 ];
|
|
|
|
if ( child.nodeType != CKEDITOR.NODE_TEXT )
|
|
return { container: parent, offset: siblings.length };
|
|
else
|
|
return { container: child, offset: child.nodeValue.length };
|
|
}
|
|
|
|
// Start the measuring until distance overflows, meanwhile count the text nodes.
|
|
var i = siblings.length;
|
|
while ( distance > 0 && i > 0 ) {
|
|
sibling = siblings[ --i ];
|
|
if ( sibling.nodeType == CKEDITOR.NODE_TEXT ) {
|
|
container = sibling;
|
|
distance -= sibling.nodeValue.length;
|
|
}
|
|
}
|
|
|
|
return { container: container, offset: -distance };
|
|
}
|
|
// Test range was one offset beyond OR behind the anchored text node.
|
|
else {
|
|
// Adapt one side of test range to the actual range
|
|
// for measuring the offset between them.
|
|
testRange.collapse( position > 0 ? true : false );
|
|
testRange.setEndPoint( position > 0 ? 'StartToStart' : 'EndToStart', range );
|
|
|
|
// IE report line break as CRLF with range.text but
|
|
// only LF with textnode.nodeValue, normalize them to avoid
|
|
// breaking character counting logic below. (#3949)
|
|
distance = testRange.text.replace( /(\r\n|\r)/g, '\n' ).length;
|
|
|
|
// Actual range anchor right beside test range at the inner boundary of text node.
|
|
if ( !distance )
|
|
return { container: parent, offset: getNodeIndex( child ) + ( position > 0 ? 0 : 1 ) };
|
|
|
|
// Start the measuring until distance overflows, meanwhile count the text nodes.
|
|
while ( distance > 0 ) {
|
|
try {
|
|
sibling = child[ position > 0 ? 'previousSibling' : 'nextSibling' ];
|
|
if ( sibling.nodeType == CKEDITOR.NODE_TEXT ) {
|
|
distance -= sibling.nodeValue.length;
|
|
container = sibling;
|
|
}
|
|
child = sibling;
|
|
}
|
|
// Measurement in IE could be somtimes wrong because of <select> element. (#4611)
|
|
catch ( e ) {
|
|
return { container: parent, offset: getNodeIndex( child ) };
|
|
}
|
|
}
|
|
|
|
return { container: container, offset: position > 0 ? -distance : container.nodeValue.length + distance };
|
|
}
|
|
};
|
|
|
|
return function() {
|
|
// IE doesn't have range support (in the W3C way), so we
|
|
// need to do some magic to transform selections into
|
|
// CKEDITOR.dom.range instances.
|
|
|
|
var sel = this.getNative(),
|
|
nativeRange = sel && sel.createRange(),
|
|
type = this.getType(),
|
|
range;
|
|
|
|
if ( !sel )
|
|
return [];
|
|
|
|
if ( type == CKEDITOR.SELECTION_TEXT ) {
|
|
range = new CKEDITOR.dom.range( this.root );
|
|
|
|
var boundaryInfo = getBoundaryInformation( nativeRange, true );
|
|
range.setStart( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );
|
|
|
|
boundaryInfo = getBoundaryInformation( nativeRange );
|
|
range.setEnd( new CKEDITOR.dom.node( boundaryInfo.container ), boundaryInfo.offset );
|
|
|
|
// Correct an invalid IE range case on empty list item. (#5850)
|
|
if ( range.endContainer.getPosition( range.startContainer ) & CKEDITOR.POSITION_PRECEDING && range.endOffset <= range.startContainer.getIndex() ) {
|
|
range.collapse();
|
|
}
|
|
|
|
return [ range ];
|
|
} else if ( type == CKEDITOR.SELECTION_ELEMENT ) {
|
|
var retval = [];
|
|
|
|
for ( var i = 0; i < nativeRange.length; i++ ) {
|
|
var element = nativeRange.item( i ),
|
|
parentElement = element.parentNode,
|
|
j = 0;
|
|
|
|
range = new CKEDITOR.dom.range( this.root );
|
|
|
|
for ( ; j < parentElement.childNodes.length && parentElement.childNodes[ j ] != element; j++ ) {
|
|
/*jsl:pass*/
|
|
}
|
|
|
|
range.setStart( new CKEDITOR.dom.node( parentElement ), j );
|
|
range.setEnd( new CKEDITOR.dom.node( parentElement ), j + 1 );
|
|
retval.push( range );
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
return [];
|
|
};
|
|
})() : function() {
|
|
|
|
// On browsers implementing the W3C range, we simply
|
|
// tranform the native ranges in CKEDITOR.dom.range
|
|
// instances.
|
|
|
|
var ranges = [],
|
|
range,
|
|
sel = this.getNative();
|
|
|
|
if ( !sel )
|
|
return ranges;
|
|
|
|
for ( var i = 0; i < sel.rangeCount; i++ ) {
|
|
var nativeRange = sel.getRangeAt( i );
|
|
|
|
range = new CKEDITOR.dom.range( this.root );
|
|
|
|
range.setStart( new CKEDITOR.dom.node( nativeRange.startContainer ), nativeRange.startOffset );
|
|
range.setEnd( new CKEDITOR.dom.node( nativeRange.endContainer ), nativeRange.endOffset );
|
|
ranges.push( range );
|
|
}
|
|
return ranges;
|
|
};
|
|
|
|
return function( onlyEditables ) {
|
|
var cache = this._.cache;
|
|
if ( cache.ranges && !onlyEditables )
|
|
return cache.ranges;
|
|
else if ( !cache.ranges )
|
|
cache.ranges = new CKEDITOR.dom.rangeList( func.call( this ) );
|
|
|
|
// Split range into multiple by read-only nodes.
|
|
if ( onlyEditables ) {
|
|
var ranges = cache.ranges;
|
|
for ( var i = 0; i < ranges.length; i++ ) {
|
|
var range = ranges[ i ];
|
|
|
|
// Drop range spans inside one ready-only node.
|
|
var parent = range.getCommonAncestor();
|
|
if ( parent.isReadOnly() )
|
|
ranges.splice( i, 1 );
|
|
|
|
if ( range.collapsed )
|
|
continue;
|
|
|
|
// Range may start inside a non-editable element,
|
|
// replace the range start after it.
|
|
if ( range.startContainer.isReadOnly() ) {
|
|
var current = range.startContainer,
|
|
isElement;
|
|
|
|
while ( current ) {
|
|
isElement = current.type == CKEDITOR.NODE_ELEMENT;
|
|
|
|
if ( ( isElement && current.is( 'body' ) ) || !current.isReadOnly() )
|
|
break;
|
|
|
|
if ( isElement && current.getAttribute( 'contentEditable' ) == 'false' )
|
|
range.setStartAfter( current );
|
|
|
|
current = current.getParent();
|
|
}
|
|
}
|
|
|
|
var startContainer = range.startContainer,
|
|
endContainer = range.endContainer,
|
|
startOffset = range.startOffset,
|
|
endOffset = range.endOffset,
|
|
walkerRange = range.clone();
|
|
|
|
// Enlarge range start/end with text node to avoid walker
|
|
// being DOM destructive, it doesn't interfere our checking
|
|
// of elements below as well.
|
|
if ( startContainer && startContainer.type == CKEDITOR.NODE_TEXT ) {
|
|
if ( startOffset >= startContainer.getLength() )
|
|
walkerRange.setStartAfter( startContainer );
|
|
else
|
|
walkerRange.setStartBefore( startContainer );
|
|
}
|
|
|
|
if ( endContainer && endContainer.type == CKEDITOR.NODE_TEXT ) {
|
|
if ( !endOffset )
|
|
walkerRange.setEndBefore( endContainer );
|
|
else
|
|
walkerRange.setEndAfter( endContainer );
|
|
}
|
|
|
|
// Looking for non-editable element inside the range.
|
|
var walker = new CKEDITOR.dom.walker( walkerRange );
|
|
walker.evaluator = function( node ) {
|
|
if ( node.type == CKEDITOR.NODE_ELEMENT && node.isReadOnly() ) {
|
|
var newRange = range.clone();
|
|
range.setEndBefore( node );
|
|
|
|
// Drop collapsed range around read-only elements,
|
|
// it make sure the range list empty when selecting
|
|
// only non-editable elements.
|
|
if ( range.collapsed )
|
|
ranges.splice( i--, 1 );
|
|
|
|
// Avoid creating invalid range.
|
|
if ( !( node.getPosition( walkerRange.endContainer ) & CKEDITOR.POSITION_CONTAINS ) ) {
|
|
newRange.setStartAfter( node );
|
|
if ( !newRange.collapsed )
|
|
ranges.splice( i + 1, 0, newRange );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
walker.next();
|
|
}
|
|
}
|
|
|
|
return cache.ranges;
|
|
};
|
|
})(),
|
|
|
|
/**
|
|
* Gets the DOM element in which the selection starts.
|
|
*
|
|
* var element = editor.getSelection().getStartElement();
|
|
* alert( element.getName() );
|
|
*
|
|
* @returns {CKEDITOR.dom.element} The element at the beginning of the selection.
|
|
*/
|
|
getStartElement: function() {
|
|
var cache = this._.cache;
|
|
if ( cache.startElement !== undefined )
|
|
return cache.startElement;
|
|
|
|
var node;
|
|
|
|
switch ( this.getType() ) {
|
|
case CKEDITOR.SELECTION_ELEMENT:
|
|
return this.getSelectedElement();
|
|
|
|
case CKEDITOR.SELECTION_TEXT:
|
|
|
|
var range = this.getRanges()[ 0 ];
|
|
|
|
if ( range ) {
|
|
if ( !range.collapsed ) {
|
|
range.optimize();
|
|
|
|
// Decrease the range content to exclude particial
|
|
// selected node on the start which doesn't have
|
|
// visual impact. ( #3231 )
|
|
while ( 1 ) {
|
|
var startContainer = range.startContainer,
|
|
startOffset = range.startOffset;
|
|
// Limit the fix only to non-block elements.(#3950)
|
|
if ( startOffset == ( startContainer.getChildCount ? startContainer.getChildCount() : startContainer.getLength() ) && !startContainer.isBlockBoundary() )
|
|
range.setStartAfter( startContainer );
|
|
else
|
|
break;
|
|
}
|
|
|
|
node = range.startContainer;
|
|
|
|
if ( node.type != CKEDITOR.NODE_ELEMENT )
|
|
return node.getParent();
|
|
|
|
node = node.getChild( range.startOffset );
|
|
|
|
if ( !node || node.type != CKEDITOR.NODE_ELEMENT )
|
|
node = range.startContainer;
|
|
else {
|
|
var child = node.getFirst();
|
|
while ( child && child.type == CKEDITOR.NODE_ELEMENT ) {
|
|
node = child;
|
|
child = child.getFirst();
|
|
}
|
|
}
|
|
} else {
|
|
node = range.startContainer;
|
|
if ( node.type != CKEDITOR.NODE_ELEMENT )
|
|
node = node.getParent();
|
|
}
|
|
|
|
node = node.$;
|
|
}
|
|
}
|
|
|
|
return cache.startElement = ( node ? new CKEDITOR.dom.element( node ) : null );
|
|
},
|
|
|
|
/**
|
|
* Gets the currently selected element.
|
|
*
|
|
* var element = editor.getSelection().getSelectedElement();
|
|
* alert( element.getName() );
|
|
*
|
|
* @returns {CKEDITOR.dom.element} The selected element. Null if no
|
|
* selection is available or the selection type is not {@link CKEDITOR#SELECTION_ELEMENT}.
|
|
*/
|
|
getSelectedElement: function() {
|
|
var cache = this._.cache;
|
|
if ( cache.selectedElement !== undefined )
|
|
return cache.selectedElement;
|
|
|
|
var self = this;
|
|
|
|
var node = CKEDITOR.tools.tryThese(
|
|
// Is it native IE control type selection?
|
|
function() {
|
|
return self.getNative().createRange().item( 0 );
|
|
},
|
|
// Figure it out by checking if there's a single enclosed
|
|
// node of the range.
|
|
function() {
|
|
var range = self.getRanges()[ 0 ],
|
|
enclosed, selected;
|
|
|
|
// Check first any enclosed element, e.g. <ul>[<li><a href="#">item</a></li>]</ul>
|
|
for ( var i = 2; i && !( ( enclosed = range.getEnclosedNode() ) && ( enclosed.type == CKEDITOR.NODE_ELEMENT ) && styleObjectElements[ enclosed.getName() ] && ( selected = enclosed ) ); i-- ) {
|
|
// Then check any deep wrapped element, e.g. [<b><i><img /></i></b>]
|
|
range.shrink( CKEDITOR.SHRINK_ELEMENT );
|
|
}
|
|
|
|
return selected.$;
|
|
});
|
|
|
|
return cache.selectedElement = ( node ? new CKEDITOR.dom.element( node ) : null );
|
|
},
|
|
|
|
/**
|
|
* Retrieves the text contained within the range. An empty string is returned for non-text selection.
|
|
*
|
|
* var text = editor.getSelection().getSelectedText();
|
|
* alert( text );
|
|
*
|
|
* @since 3.6.1
|
|
* @returns {String} A string of text within the current selection.
|
|
*/
|
|
getSelectedText: function() {
|
|
var cache = this._.cache;
|
|
if ( cache.selectedText !== undefined )
|
|
return cache.selectedText;
|
|
|
|
var nativeSel = this.getNative(),
|
|
text = isMSSelection ? nativeSel.type == 'Control' ? '' : nativeSel.createRange().text : nativeSel.toString();
|
|
|
|
return ( cache.selectedText = text );
|
|
},
|
|
|
|
/**
|
|
* Locks the selection made in the editor in order to make it possible to
|
|
* manipulate it without browser interference. A locked selection is
|
|
* cached and remains unchanged until it is released with the {@link #unlock} method.
|
|
*
|
|
* editor.getSelection().lock();
|
|
*/
|
|
lock: function() {
|
|
// Call all cacheable function.
|
|
this.getRanges();
|
|
this.getStartElement();
|
|
this.getSelectedElement();
|
|
this.getSelectedText();
|
|
|
|
// The native selection is not available when locked.
|
|
this._.cache.nativeSel = null;
|
|
|
|
this.isLocked = 1;
|
|
},
|
|
|
|
/**
|
|
* @todo
|
|
*/
|
|
unlock: function( restore ) {
|
|
if ( !this.isLocked )
|
|
return;
|
|
|
|
if ( restore ) {
|
|
var selectedElement = this.getSelectedElement(),
|
|
ranges = !selectedElement && this.getRanges();
|
|
}
|
|
|
|
this.isLocked = 0;
|
|
this.reset();
|
|
|
|
if ( restore ) {
|
|
// Saved selection may be outdated (e.g. anchored in offline nodes).
|
|
// Avoid getting broken by such.
|
|
var common = selectedElement || ranges[ 0 ] && ranges[ 0 ].getCommonAncestor();
|
|
if ( !( common && common.getAscendant( 'body', 1 ) ) )
|
|
return;
|
|
|
|
if ( selectedElement )
|
|
this.selectElement( selectedElement );
|
|
else
|
|
this.selectRanges( ranges );
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Clears the selection cache.
|
|
*
|
|
* editor.getSelection().reset();
|
|
*/
|
|
reset: function() {
|
|
this._.cache = {};
|
|
},
|
|
|
|
/**
|
|
* Makes the current selection of type {@link CKEDITOR#SELECTION_ELEMENT} by enclosing the specified element.
|
|
*
|
|
* var element = editor.document.getById( 'sampleElement' );
|
|
* editor.getSelection().selectElement( element );
|
|
*
|
|
* @param {CKEDITOR.dom.element} element The element to enclose in the selection.
|
|
*/
|
|
selectElement: function( element ) {
|
|
var range = new CKEDITOR.dom.range( this.root );
|
|
range.setStartBefore( element );
|
|
range.setEndAfter( element );
|
|
this.selectRanges( [ range ] );
|
|
},
|
|
|
|
/**
|
|
* Clears the original selection and adds the specified ranges to the document selection.
|
|
*
|
|
* // Move selection to the end of the editable element.
|
|
* var range = editor.createRange();
|
|
* range.moveToPosition( range.root, CKEDITOR.POSITION_BEFORE_END );
|
|
* editor.getSelection().selectRanges( [ ranges ] );
|
|
*
|
|
* @param {Array} ranges An array of {@link CKEDITOR.dom.range} instances
|
|
* representing ranges to be added to the document.
|
|
*/
|
|
selectRanges: function( ranges ) {
|
|
if ( !ranges.length )
|
|
return;
|
|
|
|
// Refresh the locked selection.
|
|
if ( this.isLocked ) {
|
|
// making a new DOM selection will force the focus on editable in certain situation,
|
|
// we have to save the currently focused element for later recovery.
|
|
var focused = CKEDITOR.document.getActive();
|
|
this.unlock();
|
|
this.selectRanges( ranges );
|
|
this.lock();
|
|
// Return to the previously focused element.
|
|
!focused.equals( this.root ) && focused.focus();
|
|
return;
|
|
}
|
|
|
|
if ( isMSSelection ) {
|
|
var notWhitespaces = CKEDITOR.dom.walker.whitespaces( true ),
|
|
fillerTextRegex = /\ufeff|\u00a0/,
|
|
nonCells = { table:1,tbody:1,tr:1 };
|
|
|
|
if ( ranges.length > 1 ) {
|
|
// IE doesn't accept multiple ranges selection, so we join all into one.
|
|
var last = ranges[ ranges.length - 1 ];
|
|
ranges[ 0 ].setEnd( last.endContainer, last.endOffset );
|
|
}
|
|
|
|
var range = ranges[ 0 ];
|
|
var collapsed = range.collapsed,
|
|
isStartMarkerAlone, dummySpan, ieRange;
|
|
|
|
// Try to make a object selection, be careful with selecting phase element in IE
|
|
// will breaks the selection in non-framed environment.
|
|
var selected = range.getEnclosedNode();
|
|
if ( selected && selected.type == CKEDITOR.NODE_ELEMENT && selected.getName() in styleObjectElements && !( selected.is( 'a' ) && selected.getText() ) ) {
|
|
try {
|
|
ieRange = selected.$.createControlRange();
|
|
ieRange.addElement( selected.$ );
|
|
ieRange.select();
|
|
return;
|
|
} catch ( er ) {}
|
|
}
|
|
|
|
// IE doesn't support selecting the entire table row/cell, move the selection into cells, e.g.
|
|
// <table><tbody><tr>[<td>cell</b></td>... => <table><tbody><tr><td>[cell</td>...
|
|
if ( range.startContainer.type == CKEDITOR.NODE_ELEMENT && range.startContainer.getName() in nonCells || range.endContainer.type == CKEDITOR.NODE_ELEMENT && range.endContainer.getName() in nonCells ) {
|
|
range.shrink( CKEDITOR.NODE_ELEMENT, true );
|
|
}
|
|
|
|
var bookmark = range.createBookmark();
|
|
|
|
// Create marker tags for the start and end boundaries.
|
|
var startNode = bookmark.startNode;
|
|
|
|
var endNode;
|
|
if ( !collapsed )
|
|
endNode = bookmark.endNode;
|
|
|
|
// Create the main range which will be used for the selection.
|
|
ieRange = range.document.$.body.createTextRange();
|
|
|
|
// Position the range at the start boundary.
|
|
ieRange.moveToElementText( startNode.$ );
|
|
ieRange.moveStart( 'character', 1 );
|
|
|
|
if ( endNode ) {
|
|
// Create a tool range for the end.
|
|
var ieRangeEnd = range.document.$.body.createTextRange();
|
|
|
|
// Position the tool range at the end.
|
|
ieRangeEnd.moveToElementText( endNode.$ );
|
|
|
|
// Move the end boundary of the main range to match the tool range.
|
|
ieRange.setEndPoint( 'EndToEnd', ieRangeEnd );
|
|
ieRange.moveEnd( 'character', -1 );
|
|
} else {
|
|
// The isStartMarkerAlone logic comes from V2. It guarantees that the lines
|
|
// will expand and that the cursor will be blinking on the right place.
|
|
// Actually, we are using this flag just to avoid using this hack in all
|
|
// situations, but just on those needed.
|
|
var next = startNode.getNext( notWhitespaces );
|
|
var inPre = startNode.hasAscendant( 'pre' );
|
|
isStartMarkerAlone = ( !( next && next.getText && next.getText().match( fillerTextRegex ) ) // already a filler there?
|
|
&& ( inPre || !startNode.hasPrevious() || ( startNode.getPrevious().is && startNode.getPrevious().is( 'br' ) ) ) );
|
|
|
|
// Append a temporary <span></span> before the selection.
|
|
// This is needed to avoid IE destroying selections inside empty
|
|
// inline elements, like <b></b> (#253).
|
|
// It is also needed when placing the selection right after an inline
|
|
// element to avoid the selection moving inside of it.
|
|
dummySpan = range.document.createElement( 'span' );
|
|
dummySpan.setHtml( '' ); // Zero Width No-Break Space (U+FEFF). See #1359.
|
|
dummySpan.insertBefore( startNode );
|
|
|
|
if ( isStartMarkerAlone ) {
|
|
// To expand empty blocks or line spaces after <br>, we need
|
|
// instead to have any char, which will be later deleted using the
|
|
// selection.
|
|
// \ufeff = Zero Width No-Break Space (U+FEFF). (#1359)
|
|
range.document.createText( '\ufeff' ).insertBefore( startNode );
|
|
}
|
|
}
|
|
|
|
// Remove the markers (reset the position, because of the changes in the DOM tree).
|
|
range.setStartBefore( startNode );
|
|
startNode.remove();
|
|
|
|
if ( collapsed ) {
|
|
if ( isStartMarkerAlone ) {
|
|
// Move the selection start to include the temporary \ufeff.
|
|
ieRange.moveStart( 'character', -1 );
|
|
|
|
ieRange.select();
|
|
|
|
// Remove our temporary stuff.
|
|
range.document.$.selection.clear();
|
|
} else
|
|
ieRange.select();
|
|
|
|
range.moveToPosition( dummySpan, CKEDITOR.POSITION_BEFORE_START );
|
|
dummySpan.remove();
|
|
} else {
|
|
range.setEndBefore( endNode );
|
|
endNode.remove();
|
|
ieRange.select();
|
|
}
|
|
} else {
|
|
var sel = this.getNative();
|
|
|
|
// getNative() returns null if iframe is "display:none" in FF. (#6577)
|
|
if ( !sel )
|
|
return;
|
|
|
|
// Opera: The above hack work around a *visually wrong* text selection that
|
|
// happens in certain situation. (#6874, #9447)
|
|
if ( CKEDITOR.env.opera ) {
|
|
var nativeRng = this.document.$.createRange();
|
|
nativeRng.selectNodeContents( this.root.$ );
|
|
sel.addRange( nativeRng );
|
|
}
|
|
|
|
this.removeAllRanges();
|
|
|
|
for ( var i = 0; i < ranges.length; i++ ) {
|
|
// Joining sequential ranges introduced by
|
|
// readonly elements protection.
|
|
if ( i < ranges.length - 1 ) {
|
|
var left = ranges[ i ],
|
|
right = ranges[ i + 1 ],
|
|
between = left.clone();
|
|
between.setStart( left.endContainer, left.endOffset );
|
|
between.setEnd( right.startContainer, right.startOffset );
|
|
|
|
// Don't confused by Firefox adjancent multi-ranges
|
|
// introduced by table cells selection.
|
|
if ( !between.collapsed ) {
|
|
between.shrink( CKEDITOR.NODE_ELEMENT, true );
|
|
var ancestor = between.getCommonAncestor(),
|
|
enclosed = between.getEnclosedNode();
|
|
|
|
// The following cases has to be considered:
|
|
// 1. <span contenteditable="false">[placeholder]</span>
|
|
// 2. <input contenteditable="false" type="radio"/> (#6621)
|
|
if ( ancestor.isReadOnly() || enclosed && enclosed.isReadOnly() ) {
|
|
right.setStart( left.startContainer, left.startOffset );
|
|
ranges.splice( i--, 1 );
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
range = ranges[ i ];
|
|
|
|
var nativeRange = this.document.$.createRange();
|
|
var startContainer = range.startContainer;
|
|
|
|
// In Opera, we have some cases when a collapsed text selection cursor will be moved out of the
|
|
// anchor node:
|
|
// 1. Inside of any empty inline. (#4657)
|
|
// 2. In adjacent to any inline element.
|
|
if ( CKEDITOR.env.opera && range.collapsed && startContainer.type == CKEDITOR.NODE_ELEMENT ) {
|
|
|
|
var leftSib = startContainer.getChild( range.startOffset - 1 ),
|
|
rightSib = startContainer.getChild( range.startOffset );
|
|
|
|
if ( !leftSib && !rightSib && startContainer.is( CKEDITOR.dtd.$removeEmpty ) ||
|
|
leftSib && leftSib.type == CKEDITOR.NODE_ELEMENT ||
|
|
rightSib && rightSib.type == CKEDITOR.NODE_ELEMENT ) {
|
|
range.insertNode( this.document.createText( '' ) );
|
|
range.collapse( 1 );
|
|
}
|
|
}
|
|
|
|
if ( range.collapsed && CKEDITOR.env.webkit && rangeRequiresFix( range ) ) {
|
|
// Append a zero-width space so WebKit will not try to
|
|
// move the selection by itself (#1272).
|
|
var fillingChar = createFillingChar( this.root );
|
|
range.insertNode( fillingChar );
|
|
|
|
next = fillingChar.getNext();
|
|
|
|
// If the filling char is followed by a <br>, whithout
|
|
// having something before it, it'll not blink.
|
|
// Let's remove it in this case.
|
|
if ( next && !fillingChar.getPrevious() && next.type == CKEDITOR.NODE_ELEMENT && next.getName() == 'br' ) {
|
|
removeFillingChar( this.root );
|
|
range.moveToPosition( next, CKEDITOR.POSITION_BEFORE_START );
|
|
} else
|
|
range.moveToPosition( fillingChar, CKEDITOR.POSITION_AFTER_END );
|
|
}
|
|
|
|
nativeRange.setStart( range.startContainer.$, range.startOffset );
|
|
|
|
try {
|
|
nativeRange.setEnd( range.endContainer.$, range.endOffset );
|
|
} catch ( e ) {
|
|
// There is a bug in Firefox implementation (it would be too easy
|
|
// otherwise). The new start can't be after the end (W3C says it can).
|
|
// So, let's create a new range and collapse it to the desired point.
|
|
if ( e.toString().indexOf( 'NS_ERROR_ILLEGAL_VALUE' ) >= 0 ) {
|
|
range.collapse( 1 );
|
|
nativeRange.setEnd( range.endContainer.$, range.endOffset );
|
|
} else
|
|
throw e;
|
|
}
|
|
|
|
// Select the range.
|
|
sel.addRange( nativeRange );
|
|
}
|
|
}
|
|
|
|
this.reset();
|
|
|
|
// Fakes the IE DOM event "selectionchange" on editable.
|
|
this.root.fire( 'selectionchange' );
|
|
},
|
|
|
|
/**
|
|
* Creates a bookmark for each range of this selection (from {@link #getRanges})
|
|
* by calling the {@link CKEDITOR.dom.range#createBookmark} method,
|
|
* with extra care taken to avoid interference among those ranges. The arguments
|
|
* received are the same as with the underlying range method.
|
|
*
|
|
* var bookmarks = editor.getSelection().createBookmarks();
|
|
*
|
|
* @returns {Array} Array of bookmarks for each range.
|
|
*/
|
|
createBookmarks: function( serializable ) {
|
|
return this.getRanges().createBookmarks( serializable );
|
|
},
|
|
|
|
/**
|
|
* Creates a bookmark for each range of this selection (from {@link #getRanges})
|
|
* by calling the {@link CKEDITOR.dom.range#createBookmark2} method,
|
|
* with extra care taken to avoid interference among those ranges. The arguments
|
|
* received are the same as with the underlying range method.
|
|
*
|
|
* var bookmarks = editor.getSelection().createBookmarks2();
|
|
*
|
|
* @returns {Array} Array of bookmarks for each range.
|
|
*/
|
|
createBookmarks2: function( normalized ) {
|
|
return this.getRanges().createBookmarks2( normalized );
|
|
},
|
|
|
|
/**
|
|
* Selects the virtual ranges denoted by the bookmarks by calling {@link #selectRanges}.
|
|
*
|
|
* var bookmarks = editor.getSelection().createBookmarks();
|
|
* editor.getSelection().selectBookmarks( bookmarks );
|
|
*
|
|
* @param {Array} bookmarks The bookmarks representing ranges to be selected.
|
|
* @returns {CKEDITOR.dom.selection} This selection object, after the ranges were selected.
|
|
*/
|
|
selectBookmarks: function( bookmarks ) {
|
|
var ranges = [];
|
|
for ( var i = 0; i < bookmarks.length; i++ ) {
|
|
var range = new CKEDITOR.dom.range( this.root );
|
|
range.moveToBookmark( bookmarks[ i ] );
|
|
ranges.push( range );
|
|
}
|
|
this.selectRanges( ranges );
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Retrieves the common ancestor node of the first range and the last range.
|
|
*
|
|
* var ancestor = editor.getSelection().getCommonAncestor();
|
|
*
|
|
* @returns {CKEDITOR.dom.element} The common ancestor of the selection.
|
|
*/
|
|
getCommonAncestor: function() {
|
|
var ranges = this.getRanges(),
|
|
startNode = ranges[ 0 ].startContainer,
|
|
endNode = ranges[ ranges.length - 1 ].endContainer;
|
|
return startNode.getCommonAncestor( endNode );
|
|
},
|
|
|
|
/**
|
|
* Moves the scrollbar to the starting position of the current selection.
|
|
*
|
|
* editor.getSelection().scrollIntoView();
|
|
*/
|
|
scrollIntoView: function() {
|
|
|
|
// Scrolls the first range into view.
|
|
if ( this.type != CKEDITOR.SELECTION_NONE )
|
|
this.getRanges()[ 0 ].scrollIntoView();
|
|
},
|
|
|
|
/**
|
|
* Remove all the selection ranges from the document.
|
|
*/
|
|
removeAllRanges: function() {
|
|
var nativ = this.getNative();
|
|
|
|
try { nativ && nativ[ isMSSelection ? 'empty' : 'removeAllRanges' ](); }
|
|
catch(er){}
|
|
|
|
this.reset();
|
|
}
|
|
};
|
|
|
|
})();
|