/*
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Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
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For licensing, see LICENSE.html or http://ckeditor.com/license
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*/
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CKEDITOR.dialog.add( 'colordialog', function( editor )
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{
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// Define some shorthands.
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var $el = CKEDITOR.dom.element,
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$doc = CKEDITOR.document,
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lang = editor.lang.colordialog;
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// Reference the dialog.
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var dialog;
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var spacer =
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{
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type : 'html',
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html : ' '
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};
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var selected;
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function clearSelected()
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{
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$doc.getById( selHiColorId ).removeStyle( 'background-color' );
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dialog.getContentElement( 'picker', 'selectedColor' ).setValue( '' );
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selected && selected.removeAttribute( 'aria-selected' );
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selected = null;
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}
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function updateSelected( evt )
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{
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var target = evt.data.getTarget(),
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color;
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if ( target.getName() == 'td' &&
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( color = target.getChild( 0 ).getHtml() ) )
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{
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selected = target;
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selected.setAttribute( 'aria-selected', true );
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dialog.getContentElement( 'picker', 'selectedColor' ).setValue( color );
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}
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}
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// Basing black-white decision off of luma scheme using the Rec. 709 version
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function whiteOrBlack( color )
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{
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color = color.replace( /^#/, '' );
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for ( var i = 0, rgb = []; i <= 2; i++ )
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rgb[i] = parseInt( color.substr( i * 2, 2 ), 16 );
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var luma = (0.2126 * rgb[0]) + (0.7152 * rgb[1]) + (0.0722 * rgb[2]);
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return '#' + ( luma >= 165 ? '000' : 'fff' );
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}
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// Distinguish focused and hover states.
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var focused, hovered;
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// Apply highlight style.
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function updateHighlight( event )
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{
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// Convert to event.
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!event.name && ( event = new CKEDITOR.event( event ) );
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var isFocus = !(/mouse/).test( event.name ),
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target = event.data.getTarget(),
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color;
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if ( target.getName() == 'td' && ( color = target.getChild( 0 ).getHtml() ) )
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{
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removeHighlight( event );
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isFocus ? focused = target : hovered = target;
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// Apply outline style to show focus.
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if ( isFocus )
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{
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target.setStyle( 'border-color', whiteOrBlack( color ) );
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target.setStyle( 'border-style', 'dotted' );
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}
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$doc.getById( hicolorId ).setStyle( 'background-color', color );
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$doc.getById( hicolorTextId ).setHtml( color );
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}
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}
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function clearHighlight()
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{
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var color = focused.getChild( 0 ).getHtml();
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focused.setStyle( 'border-color', color );
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focused.setStyle( 'border-style', 'solid' );
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$doc.getById( hicolorId ).removeStyle( 'background-color' );
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$doc.getById( hicolorTextId ).setHtml( ' ' );
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focused = null;
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}
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// Remove previously focused style.
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function removeHighlight( event )
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{
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var isFocus = !(/mouse/).test( event.name ),
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target = isFocus && focused;
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if ( target )
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{
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var color = target.getChild( 0 ).getHtml();
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target.setStyle( 'border-color', color );
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target.setStyle( 'border-style', 'solid' );
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}
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if ( ! ( focused || hovered ) )
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{
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$doc.getById( hicolorId ).removeStyle( 'background-color' );
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$doc.getById( hicolorTextId ).setHtml( ' ' );
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}
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}
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function onKeyStrokes( evt )
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{
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var domEvt = evt.data;
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var element = domEvt.getTarget();
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var relative, nodeToMove;
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var keystroke = domEvt.getKeystroke(),
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rtl = editor.lang.dir == 'rtl';
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switch ( keystroke )
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{
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// UP-ARROW
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case 38 :
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// relative is TR
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if ( ( relative = element.getParent().getPrevious() ) )
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{
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nodeToMove = relative.getChild( [ element.getIndex() ] );
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nodeToMove.focus();
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}
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domEvt.preventDefault();
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break;
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// DOWN-ARROW
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case 40 :
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// relative is TR
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if ( ( relative = element.getParent().getNext() ) )
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{
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nodeToMove = relative.getChild( [ element.getIndex() ] );
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if ( nodeToMove && nodeToMove.type == 1 )
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{
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nodeToMove.focus();
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}
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}
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domEvt.preventDefault();
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break;
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// SPACE
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// ENTER
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case 32 :
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case 13 :
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updateSelected( evt );
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domEvt.preventDefault();
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break;
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// RIGHT-ARROW
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case rtl ? 37 : 39 :
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// relative is TD
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if ( ( nodeToMove = element.getNext() ) )
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{
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if ( nodeToMove.type == 1 )
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{
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nodeToMove.focus();
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domEvt.preventDefault( true );
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}
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}
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// relative is TR
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else if ( ( relative = element.getParent().getNext() ) )
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{
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nodeToMove = relative.getChild( [ 0 ] );
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if ( nodeToMove && nodeToMove.type == 1 )
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{
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nodeToMove.focus();
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domEvt.preventDefault( true );
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}
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}
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break;
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// LEFT-ARROW
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case rtl ? 39 : 37 :
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// relative is TD
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if ( ( nodeToMove = element.getPrevious() ) )
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{
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nodeToMove.focus();
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domEvt.preventDefault( true );
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}
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// relative is TR
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else if ( ( relative = element.getParent().getPrevious() ) )
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{
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nodeToMove = relative.getLast();
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nodeToMove.focus();
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domEvt.preventDefault( true );
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}
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break;
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default :
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// Do not stop not handled events.
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return;
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}
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}
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function createColorTable()
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{
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table = CKEDITOR.dom.element.createFromHtml
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(
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'<table tabIndex="-1" aria-label="' + lang.options + '"' +
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' role="grid" style="border-collapse:separate;" cellspacing="0">' +
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'<caption class="cke_voice_label">' + lang.options + '</caption>' +
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'<tbody role="presentation"></tbody></table>'
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);
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table.on( 'mouseover', updateHighlight );
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table.on( 'mouseout', removeHighlight );
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// Create the base colors array.
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var aColors = [ '00', '33', '66', '99', 'cc', 'ff' ];
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// This function combines two ranges of three values from the color array into a row.
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function appendColorRow( rangeA, rangeB )
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{
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for ( var i = rangeA ; i < rangeA + 3 ; i++ )
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{
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var row = new $el( table.$.insertRow( -1 ) );
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row.setAttribute( 'role', 'row' );
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for ( var j = rangeB ; j < rangeB + 3 ; j++ )
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{
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for ( var n = 0 ; n < 6 ; n++ )
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{
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appendColorCell( row.$, '#' + aColors[j] + aColors[n] + aColors[i] );
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}
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}
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}
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}
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// This function create a single color cell in the color table.
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function appendColorCell( targetRow, color )
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{
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var cell = new $el( targetRow.insertCell( -1 ) );
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cell.setAttribute( 'class', 'ColorCell' );
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cell.setAttribute( 'tabIndex', -1 );
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cell.setAttribute( 'role', 'gridcell' );
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cell.on( 'keydown', onKeyStrokes );
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cell.on( 'click', updateSelected );
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cell.on( 'focus', updateHighlight );
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cell.on( 'blur', removeHighlight );
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cell.setStyle( 'background-color', color );
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cell.setStyle( 'border', '1px solid ' + color );
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cell.setStyle( 'width', '14px' );
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cell.setStyle( 'height', '14px' );
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var colorLabel = numbering( 'color_table_cell' );
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cell.setAttribute( 'aria-labelledby',colorLabel );
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cell.append( CKEDITOR.dom.element.createFromHtml( '<span id="' + colorLabel + '" class="cke_voice_label">' + color + '</span>', CKEDITOR.document ) );
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}
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appendColorRow( 0, 0 );
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appendColorRow( 3, 0 );
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appendColorRow( 0, 3 );
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appendColorRow( 3, 3 );
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// Create the last row.
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var oRow = new $el( table.$.insertRow( -1 ) ) ;
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oRow.setAttribute( 'role', 'row' );
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// Create the gray scale colors cells.
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for ( var n = 0 ; n < 6 ; n++ )
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{
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appendColorCell( oRow.$, '#' + aColors[n] + aColors[n] + aColors[n] ) ;
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}
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// Fill the row with black cells.
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for ( var i = 0 ; i < 12 ; i++ )
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{
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appendColorCell( oRow.$, '#000000' ) ;
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}
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}
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var numbering = function( id )
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{
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return CKEDITOR.tools.getNextId() + '_' + id;
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},
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hicolorId = numbering( 'hicolor' ),
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hicolorTextId = numbering( 'hicolortext' ),
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selHiColorId = numbering( 'selhicolor' ),
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table;
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createColorTable();
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return {
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title : lang.title,
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minWidth : 360,
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minHeight : 220,
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onLoad : function()
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{
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// Update reference.
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dialog = this;
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},
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onHide : function()
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{
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clearSelected();
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clearHighlight();
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},
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contents : [
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{
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id : 'picker',
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label : lang.title,
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accessKey : 'I',
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elements :
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[
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{
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type : 'hbox',
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padding : 0,
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widths : [ '70%', '10%', '30%' ],
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children :
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[
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{
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type : 'html',
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html : '<div></div>',
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onLoad : function()
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{
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CKEDITOR.document.getById( this.domId ).append( table );
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},
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focus : function()
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{
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// Restore the previously focused cell,
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// otherwise put the initial focus on the first table cell.
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( focused || this.getElement().getElementsByTag( 'td' ).getItem( 0 ) ).focus();
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}
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},
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spacer,
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{
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type : 'vbox',
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padding : 0,
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widths : [ '70%', '5%', '25%' ],
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children :
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[
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{
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type : 'html',
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html : '<span>' + lang.highlight +'</span>\
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<div id="' + hicolorId + '" style="border: 1px solid; height: 74px; width: 74px;"></div>\
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<div id="' + hicolorTextId + '"> </div><span>' + lang.selected + '</span>\
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<div id="' + selHiColorId + '" style="border: 1px solid; height: 20px; width: 74px;"></div>'
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},
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{
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type : 'text',
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label : lang.selected,
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labelStyle: 'display:none',
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id : 'selectedColor',
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style : 'width: 74px',
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onChange : function()
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{
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// Try to update color preview with new value. If fails, then set it no none.
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try
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{
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$doc.getById( selHiColorId ).setStyle( 'background-color', this.getValue() );
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}
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catch ( e )
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{
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clearSelected();
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}
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}
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},
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spacer,
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{
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type : 'button',
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id : 'clear',
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style : 'margin-top: 5px',
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label : lang.clear,
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onClick : clearSelected
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}
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]
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}
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]
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}
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]
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}
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]
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};
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}
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);
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