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

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/* global wpColorPickerL10n */
( function( $, undef ){
var ColorPicker,
// html stuff
_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
ColorPicker = {
options: {
defaultColor: false,
change: false,
clear: false,
hide: true,
palettes: true,
width: 255,
mode: 'hsv',
type: 'full',
slider: 'horizontal'
},
_createHueOnly: function() {
var self = this,
el = self.element,
color;
// hide input
el.hide();
// max saturated color for hue to be obvious
color = 'hsl(' + el.val() + ', 100, 50)';
el.iris( {
mode: 'hsl',
type: 'hue',
hide: false,
color: color,
change: function( event, ui ) {
if ( $.isFunction( self.options.change ) ) {
self.options.change.call( this, event, ui );
}
},
width: self.options.width,
slider: self.options.slider
} );
},
_create: function() {
// bail early for unsupported Iris.
if ( ! $.support.iris ) {
return;
}
var self = this,
el = self.element;
$.extend( self.options, el.data() );
// hue-only gets created differently
if ( self.options.type === 'hue' ) {
return self._createHueOnly();
}
// keep close bound so it can be attached to a body listener
self.close = $.proxy( self.close, self );
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: self.options.hide,
width: self.options.width,
mode: self.options.mode,
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;
// prevent any clicks inside this widget from leaking to the top and closing it
self.wrap.on( 'click.wpcolorpicker', function( event ) {
event.stopPropagation();
});
self.toggler.click( function(){
if ( self.toggler.hasClass( 'wp-picker-open' ) ) {
self.close();
} else {
self.open();
}
});
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( event ) {
if ( event.keyCode === 13 || event.keyCode === 32 ) {
event.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();
}
});
},
open: function() {
this.element.show().iris( 'toggle' ).focus();
this.button.removeClass( 'hidden' );
this.wrap.addClass( 'wp-picker-active' );
this.toggler.addClass( 'wp-picker-open' );
$( 'body' ).trigger( 'click.wpcolorpicker' ).on( 'click.wpcolorpicker', this.close );
},
close: function() {
this.element.hide().iris( 'toggle' );
this.button.addClass( 'hidden' );
this.wrap.removeClass( 'wp-picker-active' );
this.toggler.removeClass( 'wp-picker-open' );
$( 'body' ).off( 'click.wpcolorpicker', this.close );
},
// $("#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 ) );