356 lines
9.5 KiB
JavaScript
356 lines
9.5 KiB
JavaScript
/* global wpColorPickerL10n */
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( function( $, undef ) {
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var ColorPicker,
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_before = '<button type="button" class="button wp-color-result" aria-expanded="false"><span class="wp-color-result-text"></span></button>',
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_after = '<div class="wp-picker-holder" />',
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_wrap = '<div class="wp-picker-container" />',
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_button = '<input type="button" class="button button-small" />',
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_wrappingLabel = '<label></label>',
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_wrappingLabelText = '<span class="screen-reader-text"></span>';
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/**
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* Creates a jQuery UI color picker that is used in the theme customizer.
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*
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* @class $.widget.wp.wpColorPicker
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*
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* @since 3.5.0
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*/
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ColorPicker = /** @lends $.widget.wp.wpColorPicker.prototype */{
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options: {
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defaultColor: false,
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change: false,
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clear: false,
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hide: true,
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palettes: true,
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width: 255,
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mode: 'hsv',
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type: 'full',
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slider: 'horizontal'
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},
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/**
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* Creates a color picker that only allows you to adjust the hue.
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*
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* @since 3.5.0
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*
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* @access private
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*
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* @returns {void}
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*/
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_createHueOnly: function() {
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var self = this,
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el = self.element,
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color;
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el.hide();
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// Set the saturation to the maximum level.
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color = 'hsl(' + el.val() + ', 100, 50)';
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// Create an instance of the color picker, using the hsl mode.
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el.iris( {
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mode: 'hsl',
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type: 'hue',
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hide: false,
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color: color,
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/**
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* Handles the onChange event if one has been defined in the options.
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*
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* @ignore
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*
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* @param {Event} event The event that's being called.
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* @param {HTMLElement} ui The HTMLElement containing the color picker.
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*
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* @returns {void}
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*/
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change: function( event, ui ) {
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if ( $.isFunction( self.options.change ) ) {
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self.options.change.call( this, event, ui );
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}
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},
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width: self.options.width,
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slider: self.options.slider
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} );
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},
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/**
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* Creates the color picker, sets default values, css classes and wraps it all in HTML.
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*
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* @since 3.5.0
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*
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* @access private
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*
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* @returns {void}
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*/
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_create: function() {
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// Return early if Iris support is missing.
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if ( ! $.support.iris ) {
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return;
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}
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var self = this,
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el = self.element;
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// Override default options with options bound to the element.
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$.extend( self.options, el.data() );
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// Create a color picker which only allows adjustments to the hue.
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if ( self.options.type === 'hue' ) {
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return self._createHueOnly();
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}
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// Bind the close event.
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self.close = $.proxy( self.close, self );
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self.initialValue = el.val();
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// Add a CSS class to the input field.
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el.addClass( 'wp-color-picker' );
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/*
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* Check if there's already a wrapping label, e.g. in the Customizer.
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* If there's no label, add a default one to match the Customizer template.
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*/
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if ( ! el.parent( 'label' ).length ) {
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// Wrap the input field in the default label.
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el.wrap( _wrappingLabel );
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// Insert the default label text.
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self.wrappingLabelText = $( _wrappingLabelText )
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.insertBefore( el )
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.text( wpColorPickerL10n.defaultLabel );
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}
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/*
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* At this point, either it's the standalone version or the Customizer
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* one, we have a wrapping label to use as hook in the DOM, let's store it.
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*/
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self.wrappingLabel = el.parent();
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// Wrap the label in the main wrapper.
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self.wrappingLabel.wrap( _wrap );
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// Store a reference to the main wrapper.
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self.wrap = self.wrappingLabel.parent();
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// Set up the toggle button and insert it before the wrapping label.
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self.toggler = $( _before )
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.insertBefore( self.wrappingLabel )
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.css( { backgroundColor: self.initialValue } );
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// Set the toggle button span element text.
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self.toggler.find( '.wp-color-result-text' ).text( wpColorPickerL10n.pick );
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// Set up the Iris container and insert it after the wrapping label.
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self.pickerContainer = $( _after ).insertAfter( self.wrappingLabel );
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// Store a reference to the Clear/Default button.
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self.button = $( _button );
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// Set up the Clear/Default button.
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if ( self.options.defaultColor ) {
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self.button
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.addClass( 'wp-picker-default' )
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.val( wpColorPickerL10n.defaultString )
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.attr( 'aria-label', wpColorPickerL10n.defaultAriaLabel );
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} else {
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self.button
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.addClass( 'wp-picker-clear' )
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.val( wpColorPickerL10n.clear )
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.attr( 'aria-label', wpColorPickerL10n.clearAriaLabel );
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}
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// Wrap the wrapping label in its wrapper and append the Clear/Default button.
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self.wrappingLabel
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.wrap( '<span class="wp-picker-input-wrap hidden" />' )
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.after( self.button );
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/*
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* The input wrapper now contains the label+input+Clear/Default button.
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* Store a reference to the input wrapper: we'll use this to toggle
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* the controls visibility.
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*/
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self.inputWrapper = el.closest( '.wp-picker-input-wrap' );
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el.iris( {
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target: self.pickerContainer,
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hide: self.options.hide,
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width: self.options.width,
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mode: self.options.mode,
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palettes: self.options.palettes,
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/**
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* Handles the onChange event if one has been defined in the options and additionally
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* sets the background color for the toggler element.
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*
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* @since 3.5.0
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*
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* @ignore
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*
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* @param {Event} event The event that's being called.
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* @param {HTMLElement} ui The HTMLElement containing the color picker.
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*
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* @returns {void}
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*/
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change: function( event, ui ) {
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self.toggler.css( { backgroundColor: ui.color.toString() } );
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if ( $.isFunction( self.options.change ) ) {
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self.options.change.call( this, event, ui );
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}
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}
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} );
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el.val( self.initialValue );
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self._addListeners();
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// Force the color picker to always be closed on initial load.
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if ( ! self.options.hide ) {
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self.toggler.click();
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}
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},
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/**
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* Binds event listeners to the color picker.
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*
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* @since 3.5.0
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*
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* @access private
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*
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* @returns {void}
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*/
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_addListeners: function() {
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var self = this;
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/**
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* Prevent any clicks inside this widget from leaking to the top and closing it.
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*
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* @since 3.5.0
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*
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* @param {Event} event The event that's being called.
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*
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* @returs {void}
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*/
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self.wrap.on( 'click.wpcolorpicker', function( event ) {
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event.stopPropagation();
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});
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/**
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* Open or close the color picker depending on the class.
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*
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* @since 3.5
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*/
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self.toggler.click( function(){
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if ( self.toggler.hasClass( 'wp-picker-open' ) ) {
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self.close();
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} else {
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self.open();
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}
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});
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/**
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* Checks if value is empty when changing the color in the color picker.
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* If so, the background color is cleared.
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*
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* @since 3.5.0
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*
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* @param {Event} event The event that's being called.
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*
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* @returns {void}
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*/
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self.element.change( function( event ) {
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var me = $( this ),
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val = me.val();
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if ( val === '' || val === '#' ) {
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self.toggler.css( 'backgroundColor', '' );
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// Fire clear callback if we have one.
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if ( $.isFunction( self.options.clear ) ) {
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self.options.clear.call( this, event );
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}
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}
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});
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/**
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* Enables the user to either clear the color in the color picker or revert back to the default color.
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*
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* @since 3.5.0
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*
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* @param {Event} event The event that's being called.
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*
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* @returns {void}
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*/
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self.button.click( function( event ) {
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var me = $( this );
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if ( me.hasClass( 'wp-picker-clear' ) ) {
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self.element.val( '' );
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self.toggler.css( 'backgroundColor', '' );
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if ( $.isFunction( self.options.clear ) ) {
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self.options.clear.call( this, event );
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}
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} else if ( me.hasClass( 'wp-picker-default' ) ) {
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self.element.val( self.options.defaultColor ).change();
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}
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});
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},
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/**
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* Opens the color picker dialog.
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*
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* @since 3.5.0
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*
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* @returns {void}
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*/
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open: function() {
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this.element.iris( 'toggle' );
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this.inputWrapper.removeClass( 'hidden' );
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this.wrap.addClass( 'wp-picker-active' );
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this.toggler
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.addClass( 'wp-picker-open' )
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.attr( 'aria-expanded', 'true' );
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$( 'body' ).trigger( 'click.wpcolorpicker' ).on( 'click.wpcolorpicker', this.close );
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},
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/**
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* Closes the color picker dialog.
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*
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* @since 3.5.0
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*
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* @returns {void}
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*/
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close: function() {
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this.element.iris( 'toggle' );
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this.inputWrapper.addClass( 'hidden' );
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this.wrap.removeClass( 'wp-picker-active' );
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this.toggler
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.removeClass( 'wp-picker-open' )
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.attr( 'aria-expanded', 'false' );
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$( 'body' ).off( 'click.wpcolorpicker', this.close );
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},
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/**
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* Returns the iris object if no new color is provided. If a new color is provided, it sets the new color.
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*
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* @param newColor {string|*} The new color to use. Can be undefined.
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*
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* @since 3.5.0
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*
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* @returns {string} The element's color
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*/
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color: function( newColor ) {
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if ( newColor === undef ) {
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return this.element.iris( 'option', 'color' );
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}
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this.element.iris( 'option', 'color', newColor );
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},
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/**
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* Returns the iris object if no new default color is provided.
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* If a new default color is provided, it sets the new default color.
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*
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* @param newDefaultColor {string|*} The new default color to use. Can be undefined.
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*
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* @since 3.5.0
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*
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* @returns {boolean|string} The element's color.
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*/
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defaultColor: function( newDefaultColor ) {
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if ( newDefaultColor === undef ) {
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return this.options.defaultColor;
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}
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this.options.defaultColor = newDefaultColor;
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}
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};
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// Register the color picker as a widget.
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$.widget( 'wp.wpColorPicker', ColorPicker );
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}( jQuery ) );
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