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/**!
* wp-color-picker-alpha
*
* Overwrite Automattic Iris for enabled Alpha Channel in wpColorPicker
* Only run in input and is defined data alpha in true
*
* Version: 2.1.3
* https://github.com/kallookoo/wp-color-picker-alpha
* Licensed under the GPLv2 license.
*/
( function( $ ) {
// Prevent double-init.
if ( $.wp.wpColorPicker.prototype._hasAlpha ) {
return;
}
// Variable for some backgrounds ( grid )
var image = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAAHnlligAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAHJJREFUeNpi+P///4EDBxiAGMgCCCAGFB5AADGCRBgYDh48CCRZIJS9vT2QBAggFBkmBiSAogxFBiCAoHogAKIKAlBUYTELAiAmEtABEECk20G6BOmuIl0CIMBQ/IEMkO0myiSSraaaBhZcbkUOs0HuBwDplz5uFJ3Z4gAAAABJRU5ErkJggg==',
// html stuff for wpColorPicker copy of the original color-picker.js
_after = '<div class="wp-picker-holder" />',
_wrap = '<div class="wp-picker-container" />',
_button = '<input type="button" class="button button-small" />',
// Prevent CSS issues in < WordPress 4.9
_deprecated = ( wpColorPickerL10n.current !== undefined );
// Declare some global variables when is deprecated or not
if ( _deprecated ) {
var _before = '<a tabindex="0" class="wp-color-result" />';
} else {
var _before = '<button type="button" class="button wp-color-result" aria-expanded="false"><span class="wp-color-result-text"></span></button>',
_wrappingLabel = '<label></label>',
_wrappingLabelText = '<span class="screen-reader-text"></span>';
}
/**
* Overwrite Color
* for enable support rbga
*/
Color.fn.toString = function() {
if ( this._alpha < 1 )
return this.toCSS( 'rgba', this._alpha ).replace( /\s+/g, '' );
var hex = parseInt( this._color, 10 ).toString( 16 );
if ( this.error )
return '';
if ( hex.length < 6 )
hex = ( '00000' + hex ).substr( -6 );
return '#' + hex;
};
/**
* Overwrite wpColorPicker
*/
$.widget( 'wp.wpColorPicker', $.wp.wpColorPicker, {
_hasAlpha: true,
/**
* @summary Creates the color picker.
*
* Creates the color picker, sets default values, css classes and wraps it all in HTML.
*
* @since 3.5.0
*
* @access private
*
* @returns {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' );
if ( _deprecated ) {
el.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 ).addClass('hidden');
} else {
/*
* 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 );
if ( ! _deprecated ) {
self.button.attr( 'aria-label', wpColorPickerL10n.defaultAriaLabel );
}
} else {
self.button.addClass( 'wp-picker-clear' ).val( wpColorPickerL10n.clear );
if ( ! _deprecated ) {
self.button.attr( 'aria-label', wpColorPickerL10n.clearAriaLabel );
}
}
if ( _deprecated ) {
el.wrap( '<span class="wp-picker-input-wrap" />' ).after( self.button );
} else {
// 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,
/**
* @summary Handles the onChange event if one has been defined in the options.
*
* 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
*
* @param {Event} event The event that's being called.
* @param {HTMLElement} ui The HTMLElement containing the color picker.
*
* @returns {void}
*/
change: function( event, ui ) {
if ( self.options.alpha ) {
self.toggler.css( { 'background-image' : 'url(' + image + ')' } );
if ( _deprecated ) {
self.toggler.html( '<span class="color-alpha" />' );
} else {
self.toggler.css( {
'position' : 'relative'
} );
if ( self.toggler.find('span.color-alpha').length == 0 ) {
self.toggler.append('<span class="color-alpha" />');
}
}
self.toggler.find( 'span.color-alpha' ).css( {
'width' : '30px',
'position' : 'absolute',
'top' : 0,
'bottom' : 0,
'left' : 0,
'border-top-left-radius' : '2px',
'border-bottom-left-radius' : '2px',
'background' : ui.color.toString()
} );
} else {
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();
}
},
/**
* @summary Binds event listeners to the color picker.
*
* @since 3.5.0
*
* @access private
*
* @returns {void}
*/
_addListeners: function() {
var self = this;
/**
* @summary 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.
*
* @returs {void}
*/
self.wrap.on( 'click.wpcolorpicker', function( event ) {
event.stopPropagation();
});
/**
* @summary Open or close the color picker depending on the class.
*
* @since 3.5
*/
self.toggler.click( function(){
if ( self.toggler.hasClass( 'wp-picker-open' ) ) {
self.close();
} else {
self.open();
}
});
/**
* @summary Checks if value is empty when changing the color in the color picker.
*
* 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.
*
* @returns {void}
*/
self.element.on( 'change', function( event ) {
// Empty or Error = clear
if ( $( this ).val() === '' || self.element.hasClass( 'iris-error' ) ) {
if ( self.options.alpha ) {
if ( _deprecated ) {
self.toggler.removeAttr( 'style' );
}
self.toggler.find( 'span.color-alpha' ).css( 'backgroundColor', '' );
} else {
self.toggler.css( 'backgroundColor', '' );
}
// fire clear callback if we have one
if ( $.isFunction( self.options.clear ) )
self.options.clear.call( this, event );
}
} );
/**
* @summary Enables the user to clear or revert the color in the color picker.
*
* 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.
*
* @returns {void}
*/
self.button.on( 'click', function( event ) {
if ( $( this ).hasClass( 'wp-picker-clear' ) ) {
self.element.val( '' );
if ( self.options.alpha ) {
if ( _deprecated ) {
self.toggler.removeAttr( 'style' );
}
self.toggler.find( 'span.color-alpha' ).css( 'backgroundColor', '' );
} else {
self.toggler.css( 'backgroundColor', '' );
}
if ( $.isFunction( self.options.clear ) )
self.options.clear.call( this, event );
} else if ( $( this ).hasClass( 'wp-picker-default' ) ) {
self.element.val( self.options.defaultColor ).change();
}
});
},
});
/**
* Overwrite iris
*/
$.widget( 'a8c.iris', $.a8c.iris, {
_create: function() {
this._super();
// Global option for check is mode rbga is enabled
this.options.alpha = this.element.data( 'alpha' ) || false;
// Is not input disabled
if ( ! this.element.is( ':input' ) )
this.options.alpha = false;
if ( typeof this.options.alpha !== 'undefined' && this.options.alpha ) {
var self = this,
el = self.element,
_html = '<div class="iris-strip iris-slider iris-alpha-slider"><div class="iris-slider-offset iris-slider-offset-alpha"></div></div>',
aContainer = $( _html ).appendTo( self.picker.find( '.iris-picker-inner' ) ),
aSlider = aContainer.find( '.iris-slider-offset-alpha' ),
controls = {
aContainer : aContainer,
aSlider : aSlider
};
if ( typeof el.data( 'custom-width' ) !== 'undefined' ) {
self.options.customWidth = parseInt( el.data( 'custom-width' ) ) || 0;
} else {
self.options.customWidth = 100;
}
// Set default width for input reset
self.options.defaultWidth = el.width();
// Update width for input
if ( self._color._alpha < 1 || self._color.toString().indexOf('rgb') != -1 )
el.width( parseInt( self.options.defaultWidth + self.options.customWidth ) );
// Push new controls
$.each( controls, function( k, v ) {
self.controls[k] = v;
} );
// Change size strip and add margin for sliders
self.controls.square.css( { 'margin-right': '0' } );
var emptyWidth = ( self.picker.width() - self.controls.square.width() - 20 ),
stripsMargin = ( emptyWidth / 6 ),
stripsWidth = ( ( emptyWidth / 2 ) - stripsMargin );
$.each( [ 'aContainer', 'strip' ], function( k, v ) {
self.controls[v].width( stripsWidth ).css( { 'margin-left' : stripsMargin + 'px' } );
} );
// Add new slider
self._initControls();
// For updated widget
self._change();
}
},
_initControls: function() {
this._super();
if ( this.options.alpha ) {
var self = this,
controls = self.controls;
controls.aSlider.slider({
orientation : 'vertical',
min : 0,
max : 100,
step : 1,
value : parseInt( self._color._alpha * 100 ),
slide : function( event, ui ) {
// Update alpha value
self._color._alpha = parseFloat( ui.value / 100 );
self._change.apply( self, arguments );
}
});
}
},
_change: function() {
this._super();
var self = this,
el = self.element;
if ( this.options.alpha ) {
var controls = self.controls,
alpha = parseInt( self._color._alpha * 100 ),
color = self._color.toRgb(),
gradient = [
'rgb(' + color.r + ',' + color.g + ',' + color.b + ') 0%',
'rgba(' + color.r + ',' + color.g + ',' + color.b + ', 0) 100%'
],
defaultWidth = self.options.defaultWidth,
customWidth = self.options.customWidth,
target = self.picker.closest( '.wp-picker-container' ).find( '.wp-color-result' );
// Generate background slider alpha, only for CSS3 old browser fuck!! :)
controls.aContainer.css( { 'background' : 'linear-gradient(to bottom, ' + gradient.join( ', ' ) + '), url(' + image + ')' } );
if ( target.hasClass( 'wp-picker-open' ) ) {
// Update alpha value
controls.aSlider.slider( 'value', alpha );
/**
* Disabled change opacity in default slider Saturation ( only is alpha enabled )
* and change input width for view all value
*/
if ( self._color._alpha < 1 ) {
controls.strip.attr( 'style', controls.strip.attr( 'style' ).replace( /rgba\(([0-9]+,)(\s+)?([0-9]+,)(\s+)?([0-9]+)(,(\s+)?[0-9\.]+)\)/g, 'rgb($1$3$5)' ) );
el.width( parseInt( defaultWidth + customWidth ) );
} else {
el.width( defaultWidth );
}
}
}
var reset = el.data( 'reset-alpha' ) || false;
if ( reset ) {
self.picker.find( '.iris-palette-container' ).on( 'click.palette', '.iris-palette', function() {
self._color._alpha = 1;
self.active = 'external';
self._change();
} );
}
},
_addInputListeners: function( input ) {
var self = this,
debounceTimeout = 100,
callback = function( event ) {
var color = new Color( input.val() ),
val = input.val();
input.removeClass( 'iris-error' );
// we gave a bad color
if ( color.error ) {
// don't error on an empty input
if ( val !== '' )
input.addClass( 'iris-error' );
} else {
if ( color.toString() !== self._color.toString() ) {
// let's not do this on keyup for hex shortcodes
if ( ! ( event.type === 'keyup' && val.match( /^[0-9a-fA-F]{3}$/ ) ) )
self._setOption( 'color', color.toString() );
}
}
};
input.on( 'change', callback ).on( 'keyup', self._debounce( callback, debounceTimeout ) );
// If we initialized hidden, show on first focus. The rest is up to you.
if ( self.options.hide ) {
input.on( 'focus', function() {
self.show();
} );
}
}
} );
}( jQuery ) );
// Auto Call plugin is class is color-picker
jQuery( document ).ready( function( $ ) {
$( '.color-picker' ).wpColorPicker();
} );