WordPress/wp-admin/js/custom-background.dev.js

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var farbtastic;
function pickColor(color) {
farbtastic.setColor(color);
jQuery('#background-color').val(color);
jQuery('#custom-background-image').css('background-color', color);
}
jQuery(document).ready(function() {
jQuery('#pickcolor').click(function() {
jQuery('#colorPickerDiv').show();
return false;
});
jQuery('#background-color').keyup(function() {
var _hex = jQuery('#background-color').val(), hex = _hex;
if ( hex[0] != '#' )
hex = '#' + hex;
hex = hex.replace(/[^#a-fA-F0-9]+/, '');
if ( hex != _hex )
jQuery('#background-color').val(hex);
if ( hex.length == 4 || hex.length == 7 )
pickColor( hex );
});
jQuery('input[name="background-position-x"]').change(function() {
jQuery('#custom-background-image').css('background-position', jQuery(this).val() + ' top');
});
jQuery('input[name="background-repeat"]').change(function() {
jQuery('#custom-background-image').css('background-repeat', jQuery(this).val());
});
farbtastic = jQuery.farbtastic('#colorPickerDiv', function(color) {
pickColor(color);
});
pickColor(jQuery('#background-color').val());
jQuery(document).mousedown(function(){
jQuery('#colorPickerDiv').each(function(){
var display = jQuery(this).css('display');
if ( display == 'block' )
jQuery(this).fadeOut(2);
});
});
});