WordPress/wp-admin/js/color-picker.js

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JavaScript
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( function( $, undef ){
// html stuff
var _before = '<a tabindex="0" class="wp-color-result" />',
_after = '<div class="wp-picker-holder" />',
_wrap = '<div class="wp-picker-container" />',
_button = '<input type="button" class="button button-small hidden" />';
// jQuery UI Widget constructor
var ColorPicker = {
options: {
defaultColor: false,
change: false,
clear: false,
hide: true,
palettes: true
},
_create: function() {
// bail early for IE < 8
if ( $.browser.msie && parseInt( $.browser.version, 10 ) < 8 )
return;
var self = this;
var el = self.element;
$.extend( self.options, el.data() );
self.initialValue = el.val();
// Set up HTML structure, hide things
el.addClass( 'wp-color-picker' ).hide().wrap( _wrap );
self.wrap = el.parent();
self.toggler = $( _before ).insertBefore( el ).css( { backgroundColor: self.initialValue } ).attr( "title", wpColorPickerL10n.pick ).attr( "data-current", wpColorPickerL10n.current );
self.pickerContainer = $( _after ).insertAfter( el );
self.button = $( _button );
if ( self.options.defaultColor )
self.button.addClass( 'wp-picker-default' ).val( wpColorPickerL10n.defaultString );
else
self.button.addClass( 'wp-picker-clear' ).val( wpColorPickerL10n.clear );
el.wrap('<span class="wp-picker-input-wrap" />').after(self.button);
el.iris( {
target: self.pickerContainer,
hide: true,
width: 255,
mode: 'hsv',
palettes: self.options.palettes,
change: function( event, ui ) {
self.toggler.css( { backgroundColor: ui.color.toString() } );
// check for a custom cb
if ( $.isFunction( self.options.change ) )
self.options.change.call( this, event, ui );
}
} );
el.val( self.initialValue );
self._addListeners();
if ( ! self.options.hide )
self.toggler.click();
},
_addListeners: function() {
var self = this;
self.toggler.click( function( event ){
event.stopPropagation();
self.element.toggle().iris( 'toggle' );
self.button.toggleClass('hidden');
self.toggler.toggleClass( 'wp-picker-open' );
// close picker when you click outside it
if ( self.toggler.hasClass( 'wp-picker-open' ) )
$( "body" ).on( 'click', { wrap: self.wrap, toggler: self.toggler }, self._bodyListener );
else
$( "body" ).off( 'click', self._bodyListener );
});
self.element.change(function( event ) {
var me = $(this),
val = me.val();
// Empty = clear
if ( val === '' || val === '#' ) {
self.toggler.css('backgroundColor', '');
// fire clear callback if we have one
if ( $.isFunction( self.options.clear ) )
self.options.clear.call( this, event );
}
});
// open a keyboard-focused closed picker with space or enter
self.toggler.on('keyup', function( e ) {
if ( e.keyCode === 13 || e.keyCode === 32 ) {
e.preventDefault();
self.toggler.trigger('click').next().focus();
}
});
self.button.click( function( event ) {
var me = $(this);
if ( me.hasClass( 'wp-picker-clear' ) ) {
self.element.val( '' );
self.toggler.css('backgroundColor', '');
if ( $.isFunction( self.options.clear ) )
self.options.clear.call( this, event );
} else if ( me.hasClass( 'wp-picker-default' ) ) {
self.element.val( self.options.defaultColor ).change();
}
});
},
_bodyListener: function( event ) {
if ( ! event.data.wrap.find( event.target ).length )
event.data.toggler.click();
},
// $("#input").wpColorPicker('color') returns the current color
// $("#input").wpColorPicker('color', '#bada55') to set
color: function( newColor ) {
if ( newColor === undef )
return this.element.iris( "option", "color" );
this.element.iris( "option", "color", newColor );
},
//$("#input").wpColorPicker('defaultColor') returns the current default color
//$("#input").wpColorPicker('defaultColor', newDefaultColor) to set
defaultColor: function( newDefaultColor ) {
if ( newDefaultColor === undef )
return this.options.defaultColor;
this.options.defaultColor = newDefaultColor;
}
}
$.widget( 'wp.wpColorPicker', ColorPicker );
}( jQuery ) );