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/** * @output wp-admin/js/color-picker.js */ ( 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>', __ = wp.i18n.__; /** * 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 ( typeof self.options.change === 'function' ) { 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 = self.close.bind( 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( __( 'Color value' ) ); } /* * 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( __( 'Select Color' ) ); // 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( __( 'Default' ) ) .attr( 'aria-label', __( 'Select default color' ) ); } else { self.button .addClass( 'wp-picker-clear' ) .val( __( 'Clear' ) ) .attr( 'aria-label', __( 'Clear color' ) ); } // 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 ( typeof self.options.change === 'function' ) { 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.on( '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.on( 'change', function( event ) { var me = $( this ), val = me.val(); if ( val === '' || val === '#' ) { self.toggler.css( 'backgroundColor', '' ); // Fire clear callback if we have one. if ( typeof self.options.clear === 'function' ) { 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.on( 'click', function( event ) { var me = $( this ); if ( me.hasClass( 'wp-picker-clear' ) ) { self.element.val( '' ); self.toggler.css( 'backgroundColor', '' ); if ( typeof self.options.clear === 'function' ) { 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 ) );
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