/**
* @output wp-admin/js/color-picker.js
*/
/* global wpColorPickerL10n */
( function( $, undef ) {
var ColorPicker,
_before = '<button type="button" class="button wp-color-result" aria-expanded="false"><span class="wp-color-result-text"></span></button>',
_after = '<div class="wp-picker-holder" />',
_wrap = '<div class="wp-picker-container" />',
_button = '<input type="button" class="button button-small" />',
_wrappingLabel = '<label></label>',
_wrappingLabelText = '<span class="screen-reader-text"></span>';
/**
* Creates a jQuery UI color picker that is used in the theme customizer.
*
* @class $.widget.wp.wpColorPicker
*
* @since 3.5.0
*/
ColorPicker = /** @lends $.widget.wp.wpColorPicker.prototype */{
options: {
defaultColor: false,
change: false,
clear: false,
hide: true,
palettes: true,
width: 255,
mode: 'hsv',
type: 'full',
slider: 'horizontal'
},
/**
* Creates a color picker that only allows you to adjust the hue.
*
* @since 3.5.0
* @access private
*
* @return {void}
*/
_createHueOnly: function() {
var self = this,
el = self.element,
color;
el.hide();
// Set the saturation to the maximum level.
color = 'hsl(' + el.val() + ', 100, 50)';
// Create an instance of the color picker, using the hsl mode.
el.iris( {
mode: 'hsl',
type: 'hue',
hide: false,
color: color,
/**
* Handles the onChange event if one has been defined in the options.
*
* @ignore
*
* @param {Event} event The event that's being called.
* @param {HTMLElement} ui The HTMLElement containing the color picker.
*
* @return {void}
*/
change: function( event, ui ) {
if ( $.isFunction( self.options.change ) ) {
self.options.change.call( this, event, ui );
}
},
width: self.options.width,
slider: self.options.slider
} );
},
/**
* Creates the color picker, sets default values, css classes and wraps it all in HTML.
*
* @since 3.5.0
* @access private
*
* @return {void}
*/
_create: function() {
// Return early if Iris support is missing.
if ( ! $.support.iris ) {
return;
}
var self = this,
el = self.element;
// Override default options with options bound to the element.
$.extend( self.options, el.data() );
// Create a color picker which only allows adjustments to the hue.
if ( self.options.type === 'hue' ) {
return self._createHueOnly();
}
// Bind the close event.
self.close = $.proxy( self.close, self );
self.initialValue = el.val();
// Add a CSS class to the input field.
el.addClass( 'wp-color-picker' );
/*
* Check if there's already a wrapping label, e.g. in the Customizer.
* If there's no label, add a default one to match the Customizer template.
*/
if ( ! el.parent( 'label' ).length ) {
// Wrap the input field in the default label.
el.wrap( _wrappingLabel );
// Insert the default label text.
self.wrappingLabelText = $( _wrappingLabelText )
.insertBefore( el )
.text( wpColorPickerL10n.defaultLabel );
}
/*
* At this point, either it's the standalone version or the Customizer
* one, we have a wrapping label to use as hook in the DOM, let's store it.
*/
self.wrappingLabel = el.parent();
// Wrap the label in the main wrapper.
self.wrappingLabel.wrap( _wrap );
// Store a reference to the main wrapper.
self.wrap = self.wrappingLabel.parent();
// Set up the toggle button and insert it before the wrapping label.
self.toggler = $( _before )
.insertBefore( self.wrappingLabel )
.css( { backgroundColor: self.initialValue } );
// Set the toggle button span element text.
self.toggler.find( '.wp-color-result-text' ).text( wpColorPickerL10n.pick );
// Set up the Iris container and insert it after the wrapping label.
self.pickerContainer = $( _after ).insertAfter( self.wrappingLabel );
// Store a reference to the Clear/Default button.
self.button = $( _button );
// Set up the Clear/Default button.
if ( self.options.defaultColor ) {
self.button
.addClass( 'wp-picker-default' )
.val( wpColorPickerL10n.defaultString )
.attr( 'aria-label', wpColorPickerL10n.defaultAriaLabel );
} else {
self.button
.addClass( 'wp-picker-clear' )
.val( wpColorPickerL10n.clear )
.attr( 'aria-label', wpColorPickerL10n.clearAriaLabel );
}
// Wrap the wrapping label in its wrapper and append the Clear/Default button.
self.wrappingLabel
.wrap( '<span class="wp-picker-input-wrap hidden" />' )
.after( self.button );
/*
* The input wrapper now contains the label+input+Clear/Default button.
* Store a reference to the input wrapper: we'll use this to toggle
* the controls visibility.
*/
self.inputWrapper = el.closest( '.wp-picker-input-wrap' );
el.iris( {
target: self.pickerContainer,
hide: self.options.hide,
width: self.options.width,
mode: self.options.mode,
palettes: self.options.palettes,
/**
* Handles the onChange event if one has been defined in the options and additionally
* sets the background color for the toggler element.
*
* @since 3.5.0
*
* @ignore
*
* @param {Event} event The event that's being called.
* @param {HTMLElement} ui The HTMLElement containing the color picker.
*
* @return {void}
*/
change: function( event, ui ) {
self.toggler.css( { backgroundColor: ui.color.toString() } );
if ( $.isFunction( self.options.change ) ) {
self.options.change.call( this, event, ui );
}
}
} );
el.val( self.initialValue );
self._addListeners();
// Force the color picker to always be closed on initial load.
if ( ! self.options.hide ) {
self.toggler.click();
}
},
/**
* Binds event listeners to the color picker.
*
* @since 3.5.0
* @access private
*
* @return {void}
*/
_addListeners: function() {
var self = this;
/**
* Prevent any clicks inside this widget from leaking to the top and closing it.
*
* @since 3.5.0
*
* @param {Event} event The event that's being called.
*
* @return {void}
*/
self.wrap.on( 'click.wpcolorpicker', function( event ) {
event.stopPropagation();
});
/**
* Open or close the color picker depending on the class.
*
* @since 3.5.0
*/
self.toggler.click( function(){
if ( self.toggler.hasClass( 'wp-picker-open' ) ) {
self.close();
} else {
self.open();
}
});
/**
* Checks if value is empty when changing the color in the color picker.
* If so, the background color is cleared.
*
* @since 3.5.0
*
* @param {Event} event The event that's being called.
*
* @return {void}
*/
self.element.change( function( event ) {
var me = $( this ),
val = me.val();
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 );
}
}
});
/**
* Enables the user to either clear the color in the color picker or revert back to the default color.
*
* @since 3.5.0
*
* @param {Event} event The event that's being called.
*
* @return {void}
*/
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();
}
});
},
/**
* Opens the color picker dialog.
*
* @since 3.5.0
*
* @return {void}
*/
open: function() {
this.element.iris( 'toggle' );
this.inputWrapper.removeClass( 'hidden' );
this.wrap.addClass( 'wp-picker-active' );
this.toggler
.addClass( 'wp-picker-open' )
.attr( 'aria-expanded', 'true' );
$( 'body' ).trigger( 'click.wpcolorpicker' ).on( 'click.wpcolorpicker', this.close );
},
/**
* Closes the color picker dialog.
*
* @since 3.5.0
*
* @return {void}
*/
close: function() {
this.element.iris( 'toggle' );
this.inputWrapper.addClass( 'hidden' );
this.wrap.removeClass( 'wp-picker-active' );
this.toggler
.removeClass( 'wp-picker-open' )
.attr( 'aria-expanded', 'false' );
$( 'body' ).off( 'click.wpcolorpicker', this.close );
},
/**
* Returns the iris object if no new color is provided. If a new color is provided, it sets the new color.
*
* @param newColor {string|*} The new color to use. Can be undefined.
*
* @since 3.5.0
*
* @return {string} The element's color.
*/
color: function( newColor ) {
if ( newColor === undef ) {
return this.element.iris( 'option', 'color' );
}
this.element.iris( 'option', 'color', newColor );
},
/**
* Returns the iris object if no new default color is provided.
* If a new default color is provided, it sets the new default color.
*
* @param newDefaultColor {string|*} The new default color to use. Can be undefined.
*
* @since 3.5.0
*
* @return {boolean|string} The element's color.
*/
defaultColor: function( newDefaultColor ) {
if ( newDefaultColor === undef ) {
return this.options.defaultColor;
}
this.options.defaultColor = newDefaultColor;
}
};
// Register the color picker as a widget.
$.widget( 'wp.wpColorPicker', ColorPicker );
}( jQuery ) );