Club Drupal

/**

 * @file

 * Attaches preview-related behavior for the Color module.

 */

(function ($) {

  Drupal.color = {

    callback: function(context, settings, form, farb, height, width) {

      // Solid background.

      $('#preview', form).css('backgroundColor', $('#palette input[name="palette[base]"]', form).val());

      // Text preview

      $('#text', form).css('color', $('#palette input[name="palette[text]"]', form).val());

      $('#text a, #text h2', form).css('color', $('#palette input[name="palette[link]"]', form).val());

      // Set up gradients if there are some.

      var color_start, color_end;

      for (i in settings.gradients) {

        color_start = farb.unpack($('#palette input[name="palette[' + settings.gradients[i]['colors'][0] + ']"]', form).val());

        color_end = farb.unpack($('#palette input[name="palette[' + settings.gradients[i]['colors'][1] + ']"]', form).val());

        if (color_start && color_end) {

          var delta = [];

          for (j in color_start) {

            delta[j] = (color_end[j] - color_start[j]) / (settings.gradients[i]['vertical'] ? height[i] : width[i]);

          }

          var accum = color_start;

          // Render gradient lines.

          $('#gradient-' + i + ' > div', form).each(function () {

            for (j in accum) {

              accum[j] += delta[j];

            }

            this.style.backgroundColor = farb.pack(accum);

          });

        }

      }

    }

  };

})(jQuery);