function _color_rewrite_stylesheet

Rewrites the stylesheet to match the colors in the palette.

File

core/modules/color/color.module, line 521

Code

function _color_rewrite_stylesheet($theme, &$info, &$paths, $palette, $style) {
    // Prepare color conversion table.
    $conversion = $palette;
    foreach ($conversion as $k => $v) {
        $v = mb_strtolower($v);
        $conversion[$k] = Color::normalizeHexLength($v);
    }
    $default = color_get_palette($theme, TRUE);
    // Split off the "Don't touch" section of the stylesheet.
    $split = "Color Module: Don't touch";
    if (strpos($style, $split) !== FALSE) {
        list($style, $fixed) = explode($split, $style);
    }
    // Find all colors in the stylesheet and the chunks in between.
    $style = preg_split('/(#[0-9a-f]{6}|#[0-9a-f]{3})/i', $style, -1, PREG_SPLIT_DELIM_CAPTURE);
    $is_color = FALSE;
    $output = '';
    $base = 'base';
    // Iterate over all the parts.
    foreach ($style as $chunk) {
        if ($is_color) {
            $chunk = mb_strtolower($chunk);
            $chunk = Color::normalizeHexLength($chunk);
            // Check if this is one of the colors in the default palette.
            if ($key = array_search($chunk, $default)) {
                $chunk = $conversion[$key];
            }
            else {
                $chunk = _color_shift($palette[$base], $default[$base], $chunk, $info['blend_target']);
            }
        }
        else {
            // Determine the most suitable base color for the next color.
            // 'a' declarations. Use link.
            if (preg_match('@[^a-z0-9_-](a)[^a-z0-9_-][^/{]*{[^{]+$@i', $chunk)) {
                $base = 'link';
            }
            elseif (preg_match('/(?<!-)color[^{:]*:[^{#]*$/i', $chunk)) {
                $base = 'text';
            }
            else {
                $base = 'base';
            }
        }
        $output .= $chunk;
        $is_color = !$is_color;
    }
    // Append fixed colors segment.
    if (isset($fixed)) {
        $output .= $fixed;
    }
    // Replace paths to images.
    foreach ($paths['map'] as $before => $after) {
        $before = base_path() . $paths['source'] . $before;
        $before = preg_replace('`(^|/)(?!../)([^/]+)/../`', '$1', $before);
        $output = str_replace($before, $after, $output);
    }
    return $output;
}