function color_scheme_form_submit

Form submission handler for color_scheme_form().

See also

color_scheme_form_validate()

File

modules/color/color.module, line 363

Code

function color_scheme_form_submit($form, &$form_state) {
    // Get theme coloring info.
    if (!isset($form_state['values']['info'])) {
        return;
    }
    $theme = $form_state['values']['theme'];
    $info = $form_state['values']['info'];
    // Resolve palette.
    $palette = $form_state['values']['palette'];
    if ($form_state['values']['scheme'] != '') {
        foreach ($palette as $key => $color) {
            if (isset($info['schemes'][$form_state['values']['scheme']]['colors'][$key])) {
                $palette[$key] = $info['schemes'][$form_state['values']['scheme']]['colors'][$key];
            }
        }
        $palette += $info['schemes']['default']['colors'];
    }
    // Make sure enough memory is available, if PHP's memory limit is compiled in.
    if (function_exists('memory_get_usage')) {
        // Fetch source image dimensions.
        $source = drupal_get_path('theme', $theme) . '/' . $info['base_image'];
        list($width, $height) = getimagesize($source);
        // We need at least a copy of the source and a target buffer of the same
        // size (both at 32bpp).
        $required = $width * $height * 8;
        // We intend to prevent color scheme changes if there isn't enough memory
        // available.  memory_get_usage(TRUE) returns a more accurate number than
        // memory_get_usage(), therefore we won't inadvertently reject a color
        // scheme change based on a faulty memory calculation.
        $usage = memory_get_usage(TRUE);
        $memory_limit = ini_get('memory_limit');
        $size = parse_size($memory_limit);
        if (!drupal_check_memory_limit($usage + $required, $memory_limit)) {
            drupal_set_message(t('There is not enough memory available to PHP to change this theme\'s color scheme. You need at least %size more. Check the <a href="@url">PHP documentation</a> for more information.', array(
                '%size' => format_size($usage + $required - $size),
                '@url' => 'http://www.php.net/manual/ini.core.php#ini.sect.resource-limits',
            )), 'error');
            return;
        }
    }
    // Delete old files.
    foreach (variable_get('color_' . $theme . '_files', array()) as $file) {
        @drupal_unlink($file);
    }
    if (isset($file) && ($file = dirname($file))) {
        @drupal_rmdir($file);
    }
    // Don't render the default colorscheme, use the standard theme instead.
    if (implode(',', color_get_palette($theme, TRUE)) == implode(',', $palette)) {
        variable_del('color_' . $theme . '_palette');
        variable_del('color_' . $theme . '_stylesheets');
        variable_del('color_' . $theme . '_logo');
        variable_del('color_' . $theme . '_files');
        variable_del('color_' . $theme . '_screenshot');
        return;
    }
    // Prepare target locations for generated files.
    $id = $theme . '-' . substr(hash('sha256', serialize($palette) . microtime()), 0, 8);
    $paths['color'] = 'public://color';
    $paths['target'] = $paths['color'] . '/' . $id;
    foreach ($paths as $path) {
        file_prepare_directory($path, FILE_CREATE_DIRECTORY);
    }
    $paths['target'] = $paths['target'] . '/';
    $paths['id'] = $id;
    $paths['source'] = drupal_get_path('theme', $theme) . '/';
    $paths['files'] = $paths['map'] = array();
    // Save palette and logo location.
    variable_set('color_' . $theme . '_palette', $palette);
    variable_set('color_' . $theme . '_logo', $paths['target'] . 'logo.png');
    // Copy over neutral images.
    foreach ($info['copy'] as $file) {
        $base = drupal_basename($file);
        $source = $paths['source'] . $file;
        $filepath = file_unmanaged_copy($source, $paths['target'] . $base);
        $paths['map'][$file] = $base;
        $paths['files'][] = $filepath;
    }
    // Render new images, if image has been provided.
    if ($info['base_image']) {
        _color_render_images($theme, $info, $paths, $palette);
    }
    // Rewrite theme stylesheets.
    $css = array();
    foreach ($info['css'] as $stylesheet) {
        // Build a temporary array with LTR and RTL files.
        $files = array();
        if (file_exists($paths['source'] . $stylesheet)) {
            $files[] = $stylesheet;
            $rtl_file = str_replace('.css', '-rtl.css', $stylesheet);
            if (file_exists($paths['source'] . $rtl_file)) {
                $files[] = $rtl_file;
            }
        }
        foreach ($files as $file) {
            // Aggregate @imports recursively for each configured top level CSS file
            // without optimization. Aggregation and optimization will be
            // handled by drupal_build_css_cache() only.
            $style = drupal_load_stylesheet($paths['source'] . $file, FALSE);
            // Return the path to where this CSS file originated from, stripping
            // off the name of the file at the end of the path.
            $base = base_path() . dirname($paths['source'] . $file) . '/';
            _drupal_build_css_path(NULL, $base);
            // Prefix all paths within this CSS file, ignoring absolute paths.
            $style = preg_replace_callback('/url\\([\'"]?(?![a-z]+:|\\/+)([^\'")]+)[\'"]?\\)/i', '_drupal_build_css_path', $style);
            // Rewrite stylesheet with new colors.
            $style = _color_rewrite_stylesheet($theme, $info, $paths, $palette, $style);
            $base_file = drupal_basename($file);
            $css[] = $paths['target'] . $base_file;
            _color_save_stylesheet($paths['target'] . $base_file, $style, $paths);
        }
    }
    // Maintain list of files.
    variable_set('color_' . $theme . '_stylesheets', $css);
    variable_set('color_' . $theme . '_files', $paths['files']);
}