/**
* @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or http://ckeditor.com/license
*/
CKEDITOR.dialog.add( 'colordialog', function( editor ) {
// Define some shorthands.
var $el = CKEDITOR.dom.element,
$doc = CKEDITOR.document,
lang = editor.lang.colordialog,
colorCellCls = 'cke_colordialog_colorcell',
focusedColorLightCls = 'cke_colordialog_focused_light',
focusedColorDarkCls = 'cke_colordialog_focused_dark',
selectedColorCls = 'cke_colordialog_selected';
// Reference the dialog.
var dialog,
selected;
var spacer = {
type: 'html',
html: ' '
};
function clearSelected() {
$doc.getById( selHiColorId ).removeStyle( 'background-color' );
dialog.getContentElement( 'picker', 'selectedColor' ).setValue( '' );
removeSelected();
}
function updateSelected( evt ) {
var target = evt.data.getTarget(),
color;
if ( target.getName() == 'td' && ( color = target.getChild( 0 ).getHtml() ) ) {
removeSelected();
selected = target;
selected.setAttribute( 'aria-selected', true );
selected.addClass( selectedColorCls );
dialog.getContentElement( 'picker', 'selectedColor' ).setValue( color );
}
}
function removeSelected() {
if ( selected ) {
selected.removeClass( selectedColorCls );
selected.removeAttribute( 'aria-selected' ); // Attribute aria-selected should also be removed when selection changes.
selected = null;
}
}
// Basing black-white decision off of luma scheme using the Rec. 709 version.
function isLightColor( color ) {
color = color.replace( /^#/, '' );
for ( var i = 0, rgb = []; i <= 2; i++ )
rgb[ i ] = parseInt( color.substr( i * 2, 2 ), 16 );
var luma = ( 0.2126 * rgb[ 0 ] ) + ( 0.7152 * rgb[ 1 ] ) + ( 0.0722 * rgb[ 2 ] );
return luma >= 165;
}
// Distinguish focused and hover states.
var focused, hovered;
// Apply highlight style.
function updateHighlight( event ) {
// Convert to event.
!event.name && ( event = new CKEDITOR.event( event ) );
var isFocus = !( /mouse/ ).test( event.name ),
target = event.data.getTarget(),
color;
if ( target.getName() == 'td' && ( color = target.getChild( 0 ).getHtml() ) ) {
removeHighlight( event );
isFocus ? focused = target : hovered = target;
// Apply CSS class to show focus.
if ( isFocus ) {
target.addClass( isLightColor( color ) ? focusedColorLightCls : focusedColorDarkCls );
}
setHighlight( color );
}
}
function clearHighlight() {
focused.removeClass( focusedColorLightCls );
focused.removeClass( focusedColorDarkCls );
setHighlight( false );
focused = null;
}
// Remove previously focused style.
function removeHighlight( event ) {
var isFocus = !( /mouse/ ).test( event.name ),
target = isFocus && focused;
if ( target ) {
target.removeClass( focusedColorLightCls );
target.removeClass( focusedColorDarkCls );
}
if ( !( focused || hovered ) ) {
setHighlight( false );
}
}
function setHighlight( color ) {
if ( color ) {
$doc.getById( hicolorId ).setStyle( 'background-color', color );
$doc.getById( hicolorTextId ).setHtml( color );
} else {
$doc.getById( hicolorId ).removeStyle( 'background-color' );
$doc.getById( hicolorTextId ).setHtml( ' ' );
}
}
function onKeyStrokes( evt ) {
var domEvt = evt.data;
var element = domEvt.getTarget();
var relative, nodeToMove;
var keystroke = domEvt.getKeystroke(),
rtl = editor.lang.dir == 'rtl';
switch ( keystroke ) {
// UP-ARROW
case 38:
// relative is TR
if ( ( relative = element.getParent().getPrevious() ) ) {
nodeToMove = relative.getChild( [ element.getIndex() ] );
nodeToMove.focus();
}
domEvt.preventDefault();
break;
// DOWN-ARROW
case 40:
// relative is TR
if ( ( relative = element.getParent().getNext() ) ) {
nodeToMove = relative.getChild( [ element.getIndex() ] );
if ( nodeToMove && nodeToMove.type == 1 )
nodeToMove.focus();
}
domEvt.preventDefault();
break;
// SPACE
// ENTER
case 32:
case 13:
updateSelected( evt );
domEvt.preventDefault();
break;
// RIGHT-ARROW
case rtl ? 37 : 39:
// relative is TD
if ( ( nodeToMove = element.getNext() ) ) {
if ( nodeToMove.type == 1 ) {
nodeToMove.focus();
domEvt.preventDefault( true );
}
}
// relative is TR
else if ( ( relative = element.getParent().getNext() ) ) {
nodeToMove = relative.getChild( [ 0 ] );
if ( nodeToMove && nodeToMove.type == 1 ) {
nodeToMove.focus();
domEvt.preventDefault( true );
}
}
break;
// LEFT-ARROW
case rtl ? 39 : 37:
// relative is TD
if ( ( nodeToMove = element.getPrevious() ) ) {
nodeToMove.focus();
domEvt.preventDefault( true );
}
// relative is TR
else if ( ( relative = element.getParent().getPrevious() ) ) {
nodeToMove = relative.getLast();
nodeToMove.focus();
domEvt.preventDefault( true );
}
break;
default:
// Do not stop not handled events.
return;
}
}
function createColorTable() {
table = CKEDITOR.dom.element.createFromHtml( '<table tabIndex="-1" class="cke_colordialog_table"' +
' aria-label="' + lang.options + '" role="grid" style="border-collapse:separate;" cellspacing="0">' +
'<caption class="cke_voice_label">' + lang.options + '</caption>' +
'<tbody role="presentation"></tbody></table>' );
table.on( 'mouseover', updateHighlight );
table.on( 'mouseout', removeHighlight );
// Create the base colors array.
var aColors = [ '00', '33', '66', '99', 'cc', 'ff' ];
// This function combines two ranges of three values from the color array into a row.
function appendColorRow( rangeA, rangeB ) {
for ( var i = rangeA; i < rangeA + 3; i++ ) {
var row = new $el( table.$.insertRow( -1 ) );
row.setAttribute( 'role', 'row' );
for ( var j = rangeB; j < rangeB + 3; j++ ) {
for ( var n = 0; n < 6; n++ ) {
appendColorCell( row.$, '#' + aColors[ j ] + aColors[ n ] + aColors[ i ] );
}
}
}
}
// This function create a single color cell in the color table.
function appendColorCell( targetRow, color ) {
var cell = new $el( targetRow.insertCell( -1 ) );
cell.setAttribute( 'class', 'ColorCell ' + colorCellCls );
cell.setAttribute( 'tabIndex', -1 );
cell.setAttribute( 'role', 'gridcell' );
cell.on( 'keydown', onKeyStrokes );
cell.on( 'click', updateSelected );
cell.on( 'focus', updateHighlight );
cell.on( 'blur', removeHighlight );
cell.setStyle( 'background-color', color );
var colorLabel = numbering( 'color_table_cell' );
cell.setAttribute( 'aria-labelledby', colorLabel );
cell.append( CKEDITOR.dom.element.createFromHtml( '<span id="' + colorLabel + '" class="cke_voice_label">' + color + '</span>', CKEDITOR.document ) );
}
appendColorRow( 0, 0 );
appendColorRow( 3, 0 );
appendColorRow( 0, 3 );
appendColorRow( 3, 3 );
// Create the last row.
var oRow = new $el( table.$.insertRow( -1 ) );
oRow.setAttribute( 'role', 'row' );
// Create the gray scale colors cells.
appendColorCell( oRow.$, '#000000' );
for ( var n = 0; n < 16; n++ ) {
var c = n.toString( 16 );
appendColorCell( oRow.$, '#' + c + c + c + c + c + c );
}
appendColorCell( oRow.$, '#ffffff' );
}
var numbering = function( id ) {
return CKEDITOR.tools.getNextId() + '_' + id;
},
hicolorId = numbering( 'hicolor' ),
hicolorTextId = numbering( 'hicolortext' ),
selHiColorId = numbering( 'selhicolor' ),
table;
createColorTable();
// Load CSS.
CKEDITOR.document.appendStyleSheet( CKEDITOR.getUrl( CKEDITOR.plugins.get( 'colordialog' ).path + 'dialogs/colordialog.css' ) );
return {
title: lang.title,
minWidth: 360,
minHeight: 220,
onLoad: function() {
// Update reference.
dialog = this;
},
onHide: function() {
clearSelected();
clearHighlight();
},
contents: [ {
id: 'picker',
label: lang.title,
accessKey: 'I',
elements: [ {
type: 'hbox',
padding: 0,
widths: [ '70%', '10%', '30%' ],
children: [ {
type: 'html',
html: '<div></div>',
onLoad: function() {
CKEDITOR.document.getById( this.domId ).append( table );
},
focus: function() {
// Restore the previously focused cell,
// otherwise put the initial focus on the first table cell.
( focused || this.getElement().getElementsByTag( 'td' ).getItem( 0 ) ).focus();
}
},
spacer,
{
type: 'vbox',
padding: 0,
widths: [ '70%', '5%', '25%' ],
children: [ {
type: 'html',
html: '<span>' + lang.highlight + '</span>' +
'<div id="' + hicolorId + '" style="border: 1px solid; height: 74px; width: 74px;"></div>' +
'<div id="' + hicolorTextId + '"> </div><span>' + lang.selected + '</span>' +
'<div id="' + selHiColorId + '" style="border: 1px solid; height: 20px; width: 74px;"></div>'
},
{
type: 'text',
label: lang.selected,
labelStyle: 'display:none',
id: 'selectedColor',
style: 'width: 76px;margin-top:4px',
onChange: function() {
// Try to update color preview with new value. If fails, then set it no none.
try {
$doc.getById( selHiColorId ).setStyle( 'background-color', this.getValue() );
} catch ( e ) {
clearSelected();
}
}
},
spacer,
{
type: 'button',
id: 'clear',
label: lang.clear,
onClick: clearSelected
} ]
} ]
} ]
} ]
};
} );
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