<?php defined("SYSPATH") or die("No direct script access.");
/**
 * Grey Dragon Theme - a custom theme for Gallery 3
 * This theme was designed and built by Serguei Dosyukov, whose blog you will find at http://blog.dragonsoft.us
 * Copyright (C) 2009-2011 Serguei Dosyukov
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General
 * Public License as published by the Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */
?>
<?    
class Admin_Theme_Options_Controller extends Admin_Controller {

  protected $min_gallery_ver = 49;

  private function load_theme_info() {
    $file = THEMEPATH . "greydragon/theme.info";
    $theme_info = new ArrayObject(parse_ini_file($file), ArrayObject::ARRAY_AS_PROPS);
    return $theme_info;
  }

  private function get_theme_version() {
    $theme_info = $this->load_theme_info();
    return ($theme_info->version);
  }

  private function get_theme_name() {
    $theme_info = $this->load_theme_info();
    return ($theme_info->name);
  }

  private function get_packlist($type, $filename) {
    $packlist = array();
    $packroot = THEMEPATH . 'greydragon/css/' . $type . '/';

    foreach (scandir($packroot) as $pack_name):
      if (file_exists($packroot . "$pack_name/css/" . $filename . ".css")):
        if ($pack_name[0] == "."):
          continue;
        endif;

        $packlist[$pack_name] = t($pack_name);
      endif;
    endforeach;
    return $packlist;
  }

  private function get_colorpacks() {
    return $this->get_packlist('colorpacks', 'colors');
  }

  private function get_framepacks() {
    return $this->get_packlist('framepacks', 'frame');
  }

  private function prerequisite_check($group, $id, $is_ok, $caption, $caption_ok, $caption_failed, $iswarning, $msg_error) {
    $confirmation_caption = ($is_ok)? $caption_ok : $caption_failed;
    $checkbox = $group->checkbox($id)
      ->label($caption . " " . $confirmation_caption)
      ->checked($is_ok)
      ->disabled(true);
    if ($is_ok):
      $checkbox->class("g-success");
    elseif ($iswarning):
      $checkbox->class("g-prerequisite g-warning")->error_messages("failed", $msg_error)->add_error("failed", 1);
    else:
      $checkbox->class("g-error")->error_messages("failed", $msg_error)->add_error("failed", 1);
    endif;
  }

  /* Convert old values ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
  protected function upgrade_settings() {
    if (module::get_var("th_greydragon", "hide_thumbmeta")):
      module::set_var("th_greydragon", "thumb_metamode", "hide");
      module::clear_var("th_greydragon", "hide_thumbmeta");
    endif;

    if (module::get_var("gallery", "appletouchicon_url")):
      $temp = module::get_var("gallery", "appletouchicon_url");
      module::set_var("gallery", "apple_touch_icon_url", $temp);
      module::clear_var("gallery", "appletouchicon_url");
    endif;

    if (module::get_var("th_greydragon", "flex_rows", FALSE)):
      module::set_var("th_greydragon", "column_count", -1);
      module::clear_var("th_greydragon", "flex_rows");
    endif;

    if (module::get_var("th_greydragon", "thumb_descmode") == "overlay_static"):
      module::set_var("th_greydragon", "thumb_descmode", "overlay_top");
    endif;

    if (module::get_var("th_greydragon", "mainmenu_position") == "1"):
      module::set_var("th_greydragon", "mainmenu_position", "top");
    endif;

    if (module::get_var("th_greydragon", "hide_breadcrumbs")):
      module::set_var("th_greydragon", "breadcrumbs_position", "hide");
      module::clear_var("th_greydragon", "hide_breadcrumbs");
    endif;

    if (module::get_var("th_greydragon", "photonav_position")):
      $temp = module::get_var("th_greydragon", "photonav_position");
      module::set_var("th_greydragon", "paginator_album", $temp);
      module::set_var("th_greydragon", "paginator_photo", $temp);
      module::clear_var("th_greydragon", "photonav_position");
    endif;

    if (module::get_var("th_greydragon", "sidebar_allowed") == "none"):
      module::set_var("th_greydragon", "sidebar_allowed", "default");
    endif;

    if (module::get_var("th_greydragon", "thumb_topalign")):
      module::set_var("th_greydragon", "thumb_imgalign", "top");
      module::clear_var("th_greydragon", "thumb_topalign");
    elseif ((module::get_var("th_greydragon", "thumb_ratio") == "photo") && (!module::get_var("th_greydragon", "thumb_imgalign"))):
      module::set_var("th_greydragon", "thumb_imgalign", "center");
    endif;
  }

  protected function isCurlInstalled() {
  	if (in_array('curl', get_loaded_extensions())) {
  		return true;
  	}	else {
  		return false;
  	}
  } 

  protected function get_edit_form_admin() {
    $this->upgrade_settings();

    $form = new Forge("admin/theme_options/save/", "", null, array("id" =>"g-theme-options-form"));

    $rssmodulecheck = (module::is_active("rss") && module::info("rss"));

    /* Prerequisites ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("requirements")->label(t("Prerequisites"));
    $gallery_ver = module::get_version("gallery");
    $this->prerequisite_check($group, "vercheck", $gallery_ver >= $this->min_gallery_ver, 
      t("Gallery 3 Core v.") . $this->min_gallery_ver . "+", t("Installed"), t("Required"), FALSE, sprintf(t("Check Failed. Minimum Required Version is %s. Found %s."), $this->min_gallery_ver, $gallery_ver));
    if (module::get_var("th_greydragon", "allow_root_page")):
      $this->prerequisite_check($group, "rsscheck", $rssmodulecheck, 
        t("RSS Module"), t("Found"), t("not Found"), TRUE, t("Install RSS module to Enable Root Page Support"));
    endif;
    $this->prerequisite_check($group, "curlcheck", ($this->isCurlInstalled()), 
      t("PHP CURL Support is"), t("Enabled"), t("Disabled"), TRUE, t("Please make sure CURL support is enabled in PHP"));

    /* Suggested Modules ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("recommended")->label(t("Suggested Modules"));

    $check_infos = array();
    if (!module::get_var("th_greydragon", "hide_thumbmeta")):
      $this->prerequisite_check($group, "info", (module::is_active("info") and module::info("info")), 
        t("Info Module"), t("Found"), t("Required"), FALSE, t("Check Failed. Module is required to display Thumb metadata."));
    endif;

    if (module::is_active("fancybox") && module::info("fancybox")):
      $check_infos[] = array("module" => "fancybox",  "module_name" => "Fancybox",  "link" => '<a href="http://codex.gallery2.org/Gallery3:Modules:fancybox" target="_blank">');
    endif;
    if (module::is_active("colorbox") && module::info("colorbox")):
      $check_infos[] = array("module" => "colorbox",  "module_name" => "Colorbox",  "link" => '<a href="http://codex.gallery2.org/Gallery3:Modules:colorbox" target="_blank">');
    endif;
    if (module::is_active("shadowbox") && module::info("shadowbox")):
      $check_infos[] = array("module" => "shadowbox", "module_name" => "Shadowbox", "link" => '<a href="http://codex.gallery2.org/Gallery3:Modules:shadowbox" target="_blank">');
    endif;

    switch (count($check_infos)):
      case 0:
        $check_infos[] = array("module" => "fancybox",  "module_name" => "Fancybox",  "link" => '<a href="http://codex.gallery2.org/Gallery3:Modules:fancybox" target="_blank">');
        $this->prerequisite_check($group, "fancybox", FALSE, 
          t("Fancybox/Colorbox/Shadowbox") . " " . t("Module"), t("Found"), t("not Found"), TRUE, sprintf(t("Install %smodule%s to Enable %s Support"), '<a href="http://codex.gallery2.org/Gallery3:Modules:fancybox" target="_blank">', '</a>', t("Fancybox")));
        break;
      case 1:
        $check_info = $check_infos[0];
        $this->prerequisite_check($group, $check_info["module"], TRUE, 
          t($check_info["module_name"]) . " " . t("Module"), t("Found"), t("not Found"), TRUE, sprintf(t("Install %smodule%s to Enable %s Support"), $check_info["link"], '</a>', t($check_info["module_name"])));
        break;
      default:
        $list = "";
        $first = TRUE;
        foreach ($check_infos as $key => $check_info):
          if ($first):
            $list .= $check_infos[$key]["module_name"];
            $first = FALSE;
          else:
            $list .= ", " . $check_infos[$key]["module_name"];
          endif;
        endforeach;
  
        $this->prerequisite_check($group, "fancybox", FALSE, 
            t($list . " Modules are Active"),
            "",
            "",
            TRUE,
            t("Slideshow feature would not work correctly. Please activate just one of these modules."));

        break;
    endswitch;

    $check_info = $check_infos[0];
    $thumbnavcheck = module::is_active("thumbnav") and module::info("thumbnav");

    $this->prerequisite_check($group, "kbdnavcheck", ((module::is_active("kbd_nav")) and (module::info("kbd_nav"))), 
      t("Kbd Navigation Module"), t("Found"), t("not Found"), TRUE, sprintf(t("Install %smodule%s to Enable Keyboard Navigation Support"), '<a href="http://codex.gallery2.org/Gallery3:Modules:kbd_nav" target="_blank">', '</a>'));
    $this->prerequisite_check($group, "thumbnavcheck", $thumbnavcheck, 
      t("ThumbNav Module"), t("Found"), t("not Found"), TRUE, sprintf(t("Install %smodule%s to Enable Thumb Navigation Support"), '<a href="http://codex.gallery2.org/Gallery3:Modules:thumbnav" target="_blank">', '</a>'));

    $thumb_ratio = module::get_var("th_greydragon", "thumb_ratio", "photo");
    $thumb_ratio_ex = FALSE;
    switch ($thumb_ratio):
      case "photo_ex":
        $thumb_ratio = "photo";
        $thumb_ratio_ex = TRUE;
        break;
      case "film_ex":
        $thumb_ratio = "film";
        $thumb_ratio_ex = TRUE;
        break;
      case "digital_ex":
        $thumb_ratio = "digital";
        $thumb_ratio_ex = TRUE;
        break;
      case "wide_ex":
        $thumb_ratio = "wide";
        $thumb_ratio_ex = TRUE;
        break;
      default:
        break;
    endswitch;

    /* General Settings ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $sidebar_allowed = module::get_var("th_greydragon", "sidebar_allowed");
    $sidebar_visible = module::get_var("th_greydragon", "sidebar_visible");

    $group = $form->group("edit_theme")->label(t("General Settings"));
    $group->hidden("g_auto_delay")
    	->value(module::get_var("th_greydragon", "auto_delay", 30));
    $group->input("row_count")
      ->label(t("Rows per Album Page"))
      ->rules("required|valid_digit")
      ->error_messages("required", t("You must enter a number"))
      ->error_messages("valid_digit", t("You must enter a number"))
      ->value(module::get_var("th_greydragon", "row_count", 3));
    $group->dropdown("column_count")
      ->label(t("Columns per Album Page"))
      ->options(array("2" => t("2 columns"), "3" => t("3 columns"), "4" => t("4 columns"), "5" => t("5 columns"), "-1" => t("Flexible (3 x Number of Rows)")))
      ->selected(module::get_var("th_greydragon", "column_count", 3));
    $group->input("resize_size")
      ->label(t("Resized Image Size (in pixels)"))
      ->rules("required|valid_digit")
      ->error_messages("required", t("You must enter a number"))
      ->error_messages("valid_digit", t("You must enter a number"))
      ->value(module::get_var("gallery", "resize_size"));
    $group->input("logo_path")
      ->label(t("Alternate Logo Image"))
      ->value(module::get_var("th_greydragon", "logo_path"));
    $group->input("favicon")
      ->label(t("URL (or relative path) to your favicon.ico"))
      ->value(module::get_var("gallery", "favicon_url"));
    $group->input("appletouchicon")
      ->label(t("URL (or relative path) to your Apple Touch icon"))
      ->value(module::get_var("gallery", "apple_touch_icon_url"));
    $group->input("header_text")
      ->label(t("Header Text"))
      ->value(module::get_var("gallery", "header_text"));
    $group->input("footer_text")
      ->label(t("Footer Text"))
      ->value(module::get_var("gallery", "footer_text"));
    $group->input("copyright")
      ->label(t("Copyright Message"))
      ->value(module::get_var("th_greydragon", "copyright"));
    $group->dropdown("colorpack")
      ->label(t("Color Pack/Site theme"))
      ->options(self::get_colorpacks())
      ->selected(module::get_var("th_greydragon", "color_pack", "greydragon"));
    $group->dropdown("framepack")
      ->label(t("Thumb Frame Pack"))
      ->options(self::get_framepacks())
      ->selected(module::get_var("th_greydragon", "frame_pack", "greydragon"));

    /* Advanced Options - General ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("edit_theme_adv_main")->label(t("Advanced Options - General"));
    $group->dropdown("viewmode")
      ->label(t("Theme View Mode"))
      ->options(array("default" => t("Full Mode (Default)"), "mini" => t("Mini Mode")))
      ->selected(module::get_var("th_greydragon", "viewmode", "default"));
    $group->dropdown("mainmenu_position")
      ->label(t("Main Menu Position"))
      ->options(array("default" => t("Bottom-Left (Default)"), "top" => t("Top-Left"), "bar" => t("Top Bar")))
      ->selected(module::get_var("th_greydragon", "mainmenu_position"));
    $group->dropdown("loginmenu_position")
      ->label(t("Login Menu Position"))
      ->options(array("header" => t("Header"), "default" => t("Footer (Default)"), "hide" => t("Hide")))
      ->selected(module::get_var("th_greydragon", "loginmenu_position", "default"));
    $group->dropdown("breadcrumbs_position")
      ->label(t("Breadcrumbs Position"))
      ->options(array("default" => t("Bottom-Right (Default)"), "bottom-left" => t("Bottom-Left"), "top-right" => t("Top-Right"), "top-left" => t("Top-Left"), "hide" => t("Hide")))
      ->selected(module::get_var("th_greydragon", "breadcrumbs_position"));
    $group->dropdown("title_source")
      ->label(t("Title Source"))
      ->options(array("default" => t("Title (Default)"), "no-filename" => t("Title/Suppress File Name"), "description" => t("Description")))
      ->selected(module::get_var("th_greydragon", "title_source", "default"));
    $group->input("custom_css_path")
      ->label(t("File Name of custom.css or equivalent"))
      ->value(module::get_var("th_greydragon", "custom_css_path"));
    $group->input("thumb_quality")
      ->label(t("Thumb Image Quallity (in %)"))
      ->rules("required|valid_digit")
      ->error_messages("required", t("You must enter a number"))
      ->error_messages("valid_digit", t("You must enter a number"))
      ->value(module::get_var("th_greydragon", "thumb_quality", 100));
    $group->input("resize_quality")
      ->label(t("Resized Image Quallity (in %)"))
      ->rules("required|valid_digit")
      ->error_messages("required", t("You must enter a number"))
      ->error_messages("valid_digit", t("You must enter a number"))
      ->value(module::get_var("th_greydragon", "resize_quality", 100));
    $group->input("visible_title_length")
      ->label(t("Visible Title Length"))
      ->rules("required|valid_digit")
      ->error_messages("required", t("You must enter a number"))
      ->error_messages("valid_digit", t("You must enter a number"))
      ->value(module::get_var("gallery", "visible_title_length", 15));

    $group->checkbox("show_guest_menu")
      ->label(t("Show Main Menu for Guest Users"))
      ->checked(module::get_var("th_greydragon", "show_guest_menu"));
    $group->checkbox("toolbar_large")
      ->label(t("Use Large Toolbar Buttons"))
      ->checked(module::get_var("th_greydragon", "toolbar_large"));
    $group->checkbox("show_credits")
      ->label(t("Show Site Credits"))
      ->checked(module::get_var("gallery", "show_credits"));
    $group->checkbox("breadcrumbs_showinroot")
      ->label(t("Show Breadcrumbs in root album/root page"))
      ->checked(module::get_var("th_greydragon", "breadcrumbs_showinroot"));
    $group->checkbox("disable_seosupport")
      ->label(t("Disallow Search Engine Indexing (No Bots)"))
      ->checked(module::get_var("th_greydragon", "disable_seosupport"));
    $group->checkbox("desc_allowbbcode")
      ->label(t("Allow BBCode/HTML in Descriptions"))
      ->checked(module::get_var("th_greydragon", "desc_allowbbcode"));
    $group->checkbox("use_permalinks")
      ->label(t("Use Permalinks for Navigation"))
      ->checked(module::get_var("th_greydragon", "use_permalinks"));

    /* Advanced Options - Album page ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("edit_theme_adv_album")->label(t("Advanced Options - Album Page"));
    $group->dropdown("paginator_album")
      ->label(t("Paginator Position"))
      ->options(array("top" => t("Top"), "bottom" => t("Bottom"), "both" => t("Both"), "none" => t("None")))
      ->selected(module::get_var("th_greydragon", "paginator_album"));
    $group->dropdown("album_descmode")
      ->label(t("Description Display Mode"))
      ->options(array("hide" => t("Hide"), "top" => t("Top"), "bottom" => t("Bottom")))
      ->selected(module::get_var("th_greydragon", "album_descmode"));
    $group->checkbox("disablephotopage")
      ->label(t("Disable Photo Page (use Slideshow Mode)"))
      ->checked(module::get_var("th_greydragon", "disablephotopage"));
    $group->checkbox("hidecontextmenu")
      ->label(t("Hide Context Menu"))
      ->checked(module::get_var("th_greydragon", "hidecontextmenu"));

    /* Advanced Options - Album page - Thumbs ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("edit_theme_adv_thumb")->label(t("Advanced Options - Album page - Thumbs"));
    $group->dropdown("thumb_ratio")
      ->label(t("Aspect Ratio"))
      ->options(array("photo" => t("Actual"), "film" => t("Film/Full Frame 3:2"), "digital" => t("Digital 4:3"), "wide" => t("Wide/HDTV 16:9")))
      ->selected($thumb_ratio);
    $group->checkbox("thumb_ratio_ex")
      ->label(t("Expanded Aspect Ratio (300px wide)"))
      ->checked($thumb_ratio_ex);
    $group->dropdown("thumb_imgalign")
      ->label(t("Thumb Image Align"))
      ->options(array("top" => t("Top"), "center" => t("Center"), "bottom" => t("Bottom"), "fit" => t("Fit")))
      ->selected(module::get_var("th_greydragon", "thumb_imgalign"));

    $group->dropdown("thumb_descmode_a")
      ->label(t("Title Display Mode (Album)"))
      ->options(array("overlay" => t("Overlay Top"), "overlay_top" => t("Overlay Top (Static)"), 
          "overlay_bottom" => t("Overlay Bottom (Static)"), "bottom" => t("Bottom"), "hide" => t("Hide")))
      ->selected(module::get_var("th_greydragon", "thumb_descmode_a"));
    $group->dropdown("thumb_descmode")
      ->label(t("Title Display Mode (Photo)"))
      ->options(array("overlay" => t("Overlay Top"), "overlay_top" => t("Overlay Top (Static)"), 
          "overlay_bottom" => t("Overlay Bottom (Static)"), "bottom" => t("Bottom"), "hide" => t("Hide")))
      ->selected(module::get_var("th_greydragon", "thumb_descmode"));
    $group->dropdown("thumb_metamode")
      ->label(t("Meta Data Display Mode"))
      ->options(array("default" => t("Overlay (Default)"), "merged" => t("Merge with Title"), "hide" => t("Hide")))
      ->selected(module::get_var("th_greydragon", "thumb_metamode", "default"));
    $group->checkbox("thumb_random")
      ->label(t("Randomize Thumb Image"))
      ->checked(module::get_var("th_greydragon", "thumb_random"));

    /* Advanced Options - Photo page ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("edit_theme_adv_photo")->label(t("Advanced Options - Photo Page"));
    $group->dropdown("paginator_photo")
      ->label(t("Paginator Position"))
      ->options(array("top" => t("Top"), "bottom" => t("Bottom"), "both" => t("Both"), "none" => t("None")))
      ->selected(module::get_var("th_greydragon", "paginator_photo"));
    $group->dropdown("photo_descmode")
      ->label(t("Description Display Mode"))
      ->options(array("overlay_top" => t("Overlay Top"), "overlay_bottom" => t("Overlay Bottom"), "overlay_top_s" => t("Overlay Top (Static)"),
         "overlay_bottom_s" => t("Overlay Bottom (Static)"), "bottom" => t("Bottom"), "top" => t("Top"), "hide" => t("Hide")))
      ->selected(module::get_var("th_greydragon", "photo_descmode"));
    $group->dropdown("photo_popupbox")
      ->label(t($check_info["module_name"]) . " " . t("Mode"))
      ->options(array("default" => t("Default (Slideshow/Preview)"), "preview" => t("Preview Only"), "none" => t("Disable")))
      ->selected(module::get_var("th_greydragon", "photo_popupbox"));
    $group->checkbox("thumb_inpage")
      ->label(t("Keep Thumb Nav Block on the side"))
      ->checked(module::get_var("th_greydragon", "thumb_inpage"));
    if (!$thumbnavcheck):
      $group->thumb_inpage->disabled(true);
    endif;
    $group->checkbox("hide_photometa")
      ->label(t("Hide Item Meta Data"))
      ->checked(module::get_var("th_greydragon", "hide_photometa", TRUE));

    /* Advanced Options - Root Page ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("edit_theme_adv_root")->label(t("Advanced Options - Root Page"));
    $group->checkbox("allow_root_page")
      ->label(t("Allow root page"))
      ->checked(module::get_var("th_greydragon", "allow_root_page"));
    $group->checkbox("show_root_desc")
      ->label(t("Show Gallery Description"))
      ->checked(!module::get_var("th_greydragon", "hide_root_desc"));
    $group->input("root_feed")
      ->label(t("Slideshow RSS Feed URL"))
      ->value(module::get_var("th_greydragon", "root_feed", "/gallery3/index.php/rss/feed/gallery/latest"));
    $group->dropdown("root_cyclemode")
      ->label(t("Cycle Effect (Default: Fade)"))
      ->options(array("fade" => t("Fade"), "fadeZoom" => t("Fade Zoom"), "blindX" => t("Blind X"), "blindY" => t("Blind Y"), 
          "blindZ" => t("Blind Z"), "cover" => t("Cover"), "curtainX" => t("Curtain X"), "curtainY" => t("Curtain Y"),
          "growX" => t("Grow X"), "growY" => t("Grow Y"), "none" => t("None"), "scrollUp" => t("Scroll Up"),
          "scrollDown" => t("Scroll Down"), "scrollLeft" => t("Scroll Left"), "scrollRight" => t("Scroll Right"), 
          "scrollHorz" => t("Scroll Horz"), "scrollVert" => t("Scroll Vert"), "shuffle" => t("Shuffle"), 
          "slideX" => t("Slide X"), "slideY" => t("Slide Y"), "toss" => t("Toss"), "turnUp" => t("Turn Up"), 
          "turnDown" => t("Turn Down"), "turnLeft" => t("Turn Left"), "turnRight" => t("Turn Right"), "uncover" => t("Uncover"),
          "wipe" => t("Wipe"), "zoom" => t("Zoom")))
      ->selected(module::get_var("th_greydragon", "root_cyclemode"));
    $group->input("root_delay")
      ->label(t("Slideshow Delay (Default: 15)"))
      ->rules("required|valid_digit")
      ->error_messages("required", t("You must enter a number"))
      ->error_messages("valid_digit", t("You must enter a number"))
      ->value(module::get_var("th_greydragon", "root_delay", "15"));
    $group->checkbox("hide_root_sidebar")
      ->label(t("Hide Sidebar"))
      ->checked(module::get_var("th_greydragon", "hide_root_sidebar"));
    $group->textarea("root_description")
      ->label(t("Alternative Description (optional)"))
      ->value(module::get_var("th_greydragon", "root_description"));

    /* Sidebar Options ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("edit_theme_side")->label(t("Sidebar Options"));
    $group->checkbox("hide_blockheader")
      ->label(t("Hide Block Header"))
      ->checked(module::get_var("th_greydragon", "hide_blockheader"));
    $group->checkbox("sidebar_albumonly")
      ->label(t("Show Sidebar for Albums Only"))
      ->checked(module::get_var("th_greydragon", "sidebar_albumonly"));
    $group->checkbox("sidebar_hideguest")
      ->label(t("Show Sidebar for Guest Users"))
      ->checked(!module::get_var("th_greydragon", "sidebar_hideguest"));
    $group->dropdown("sidebar_allowed")
      ->label(t("Allowed Sidebar Positions"))
      ->options(array("any" => t("Any"), "left" => t("Left"), "right" => t("Right"), "bottom" => t("Bottom"), "top" => t("Top"), "default" => t("Default Only")))
      ->selected($sidebar_allowed);
    $group->dropdown("sidebar_visible")
      ->label(t("Default Sidebar Position"))
      ->options(array("right" => t("Right"), "left" => t("Left"), "bottom" => t("Bottom"), "top" => t("Top"), "none" => t("No sidebar")))
      ->selected($sidebar_visible);

    /* Maintenance ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

    $group = $form->group("maintenance")->label(t("Maintenance"));
    $group->checkbox("build_thumbs")->label(t("Mark all Thumbnails for Rebuild"))->checked(false);
    $group->checkbox("build_resize")->label(t("Mark all Image Resizes for Rebuild"))->checked(false);
    $group->checkbox("build_exif")->label(t("Mark Exif Info data for reload"))->checked(false);
    $group->checkbox("purge_cache")->label(t("Purge cache data"))->checked(false);
    $group->checkbox("reset_theme")->label(t("Reset Theme to a Default State"))->checked(false);

    module::event("theme_edit_form", $form);

    $form->submit("g-theme-options-save")->value(t("Save Changes"));
    
    return $form;
  }

  protected function get_edit_form_help() {
    $help = '<fieldset>';
    $help .= '<legend>' . t("Help") . '</legend><ul>';
    $help .= '<li><h3>' . t("Prerequisites") . '</h3>
      <p><b>' . t("REQUIREMENTS NEED TO BE MET FOR THE THEME TO FUNCTION PROPERLY.") . '</b><br />
      	' . t("Please refer to the section on the left.") . '
      </li>';

    $help .= '<li><h3>' . t("General Settings") . '</h3>
      ' . t("<p>Theme is designed to display thumbnails as a table.
        You can choose different number of <b>Rows/Columns per Album Page</b> or can use <b>Flexible Columns</b>.
      <p>Default G3 logo can be replaced with your own by providing <b>Alternate Logo Image</b>. Recommended logo size
        is within 300x80px. If you need bigger space for your logo, CSS would have to be adjusted. Otherwise, Logo could be
        suppressed altogether by providing <b>Header Text</b> to replace it. <b>Footer Text</b> would be simply placed next
        to Site\'s credits.
      <p><b>Copyright Message</b> can be placed in the right top corner of the footer.
      <p>Important feature of the theme is a support for Color Packs which is managed by <b>Selected Color Pack</b> Option.
      <b>Color Pack</b> allows changing colors, styles, theme for the pages. By default 6 color packs are included,
        but it could be easily extended. Visit Theme\'s Download page for additional information.
      <b>Frame Pack</b> allows change Frames used for Thumbs in album pages.") . '
      </li>';

    $help .= '<li><h3>' . t("Advanced Options - General") . '</h3>
      ' . t("<p>In order to allow easier integration of Gallery 3 within other site infrastructure, Theme supports Special <b>View Mode</b>
        - when <i>Mini Mode</i> is selected, attempt would be made to minimize space associated with Header/Footer by trimming of
        the some information. Use with caution. Theme supports CMD parameter to override this selection - add 
        \"?viewmode=default|full|mini\" to site URL in order to trigger a switch for specific browser session. When browser session
        is restarted, view mode would revert back to default set in Admin Panel.
      <p>Show your appreciation for our hard work by allowing <b>Show Site Credits</b> or contributing to our Coffee Fund.
      <p>If main menu has functionality intended for guest users you can use <b>Show Main Menu for Guest Users</b> to keep it
        visible.
      <br />You can go even further and move main menu to the top of the header with breadcrumbs taking it place by selecting
        <b>Alternate Header Layout</b>. <br />Then if you prefer breadcrumbs not being used, simply hide it with <b>Hide
        Breadcrumbs</b> option.
      <br />Then you can decide if you want to <b>Show Breadcrumbs</b> in the root album/root page.
      <p>If you like to add some cool effects while navigating between pages,
        enable <b>Blend Page Transition</b>.
      <p><b>Paginator Position</b> could be changed to display it above and/or below the main content. 
      <p>You can further fine tune theme using custom CSS file by providing file name (file need to be located in <b>themes/custom</b>
        folder) or more specific location in form of <b>your_path/your_file_name.css</b> if different.
      <p>Block web crawlers from indexing your Gallery with <b>Disallow Search Engine Indexing</b> Option.") . '
      </li>';
    $help .= '<li><h3>' . t("Advanced Options - Album page - Thumbs") . '</h3>
      ' . t("<p>Options in this section adjust how Photo\'s Thumb images are displayed.
      <p><b>Aspect Ratio</b> specifies layout/size of the thumb. Setting should be used with understanding that some
        information may be out of visible area (crop). When switching to/from <b>Actual Size</b>, it is recommended to rebuild
        thumbs so that proper settings are used for thumb resize logic (see Maintenance section below). Combined with
        <b>Expanded Aspect Ratio (300px wide)</b> you can switch between 200px and 300px wide thumb images.
      <p><b>Title Display Mode</b> and <b>Meta Data Display Mode</b> allows changing how Item\'s caption and Meta Data is
        displayed. And selecting <b>Merge with Title</b> would place meta data with the Title.
      <p>Randomize your thumbs by enabling <b>Randomize Thumb Image</b> (Please use with caution as it does introduce extra
        load for database.).") . '
      </li>';
    $help .= '<li><h3>' . t("Advanced Options - Photo Page") . '</h3>
      ' . t("<p>Options in this section adjust how individual Photo are presented to the viewer.
      <p>With <b>ShadowBox Mode</b>, theme\'s logic could be adjusted in how Slideshow module is integrated.
      <br />As with Title in Photo Thumbs, <b>Description Display Mode</b> changes how Photo Description is displayed.
      <br />You can choose to <b>Keep Thumb Nav Block on the side</b> of the Photo when Page is displayed with bottom aligned
        or hidden Sidebar.
      <br />And if metadata (owner/clicks/etc.) is unnecessary, it could be removed with <b>Hide Item Meta Data</b>.
      <p>Theme allows use of BBCode/HTML in item\'s descriptions, to enable it select <b>Allow BBCode/HTML in Descriptions</b>.") . '
      </li>';
    $help .= '<li><h3>' . t("Advanced Options - Root Page") . '</h3>
      ' . t("<p>Special option which allows adding special root/landing page with slideshow utilizing specified <b>Slideshow RSS Feed
        URL</b> (Default: /gallery3/index.php/rss/feed/gallery/latest).
      <p>To enable it, select <b>Allow root page</b>.
      <p>Add small description on the side of the slideshow with <b>Show Gallery Description</b>.
      <br />Adjust rotation delay with <b>Slideshow Delay</b>.
      <br />If Sidebar is not desired in the Root Page it could be hidden with <b>Hide Sidebar</b> option.
      <br />By default, description content is populated from description of the root album, but by providing <b>Alternative
        Description</b> you can overwrite it.") . '
      </li>';
    $help .= '<li><h3>' . t("Sidebar Options") . '</h3>
      ' . t("<p>If Block\'s header is not desired, it could be removed using <b>Hide Block Header</b>.
      <p>Sidebar visibility could be limited to individual Photo pages with
      <b>Show Sidebar for Albums Only</b>.
      <p>When sidebar is visible it can be placed on the left or right of the 
        screen or removed altogether using <b>Allowed Sidebar Positions</b>.
        If more than one position is allowed, <b>Default Sidebar Position</b>
        would indicate default state, but visitor would able change it later.") . '
      </li>';
    $help .= '<li><h3>' . t("Maintenance") . '</h3>
      ' . t("<p>Without changing image size, you can <b>Mark all Resizes for Rebuild</b>.
      Then you need to visit Admin\Maintenance to initiate the process.
      <p>Same can be done for image thumbs with <b>Mark all Thumbnails for Rebuild</b>.
      <p><b>Mark Exif/IPTC Info for reload</b> would mark all Exif or IPTC records as \"Dirty\" allowing it to be repopulated.
      <p>And just in case you think that something is not right, you can always <b>Reset Theme to a Default State</b>.") . '
      </li>';
    $help .= '</ul></fieldset>';
    return $help;
  }

  private function save_item_state($statename, $state, $value) {
    if ($state):
      module::set_var("th_greydragon", $statename, $value);
    else:
      module::clear_var("th_greydragon", $statename);
    endif;
  }

  protected function legacy() {
    module::clear_var("th_greydragon", "photonav_top");
    module::clear_var("th_greydragon", "photonav_bottom");
    module::clear_var("th_greydragon", "hide_sidebar_photo");
    module::clear_var("th_greydragon", "hide_thumbdesc");
    module::clear_var("th_greydragon", "use_detailview");
    module::clear_var("th_greydragon", "horizontal_crop");
    module::clear_var("th_greydragon", "photo_shadowbox");
    module::clear_var("th_greydragon", "root_text");
    module::clear_var("th_greydragon", "enable_pagecache");

    module::clear_var("th_greydragon", "navigator_album");
    module::clear_var("th_greydragon", "navigator_photo");

    module::clear_var("th_greydragon", "blendpagetrans");
    module::clear_var("th_greydragon", "last_update");
  }

  protected function reset_theme() {
    // Default core theme settings
    module::set_var("gallery", "page_size", 9);
    module::set_var("gallery", "resize_size", 640);
    module::set_var("gallery", "thumb_size", 200);
    module::set_var("gallery", "header_text", "");
    module::set_var("gallery", "footer_text", "");
    module::set_var("gallery", "show_credits", FALSE);

    module::clear_all_vars("th_greydragon");
  }

  public function save() {
    site_status::clear("gd_init_configuration");
    access::verify_csrf();

    $form = self::get_edit_form_admin();

    if ($form->validate()):
      $this->legacy();

      if ($form->maintenance->reset_theme->value):
        $this->reset_theme();
        module::event("theme_edit_form_completed", $form);
        message::success(t("Theme details are reset"));
      else:
        // * General Settings ****************************************************

        $resize_size  = $form->edit_theme->resize_size->value;

        $build_resize = $form->maintenance->build_resize->value;
        $build_thumbs = $form->maintenance->build_thumbs->value;
        $build_exif   = $form->maintenance->build_exif->value;
        if (module::is_active("iptc") and module::info("iptc")):
          $build_iptc   = $form->maintenance->build_iptc->value;
        else:
          $build_iptc = FALSE;
        endif;
        $purge_cache  = $form->maintenance->purge_cache->value;

        $color_pack = $form->edit_theme->colorpack->value;
        $frame_pack = $form->edit_theme->framepack->value;
        $thumb_imgalign = $form->edit_theme_adv_thumb->thumb_imgalign->value;
        $thumb_descmode_a = $form->edit_theme_adv_thumb->thumb_descmode_a->value;
        $thumb_descmode = $form->edit_theme_adv_thumb->thumb_descmode->value;
        $thumb_metamode = $form->edit_theme_adv_thumb->thumb_metamode->value;
        $photo_descmode = $form->edit_theme_adv_photo->photo_descmode->value;
        $photo_popupbox = $form->edit_theme_adv_photo->photo_popupbox->value;
        $resize_quality = $form->edit_theme_adv_main->resize_quality->value;
        $thumb_quality  = $form->edit_theme_adv_main->thumb_quality->value;

        if ($build_resize):
          graphics::remove_rule("gallery", "resize", "gallery_graphics::resize");
          graphics::add_rule("gallery", "resize", "gallery_graphics::resize",
            array("width" => $resize_size, "height" => $resize_size, "master" => Image::AUTO), $resize_quality);
        endif;

        if (module::get_var("gallery", "resize_size") != $resize_size):
          module::set_var("gallery", "resize_size", $resize_size);
        endif;

        $_priorratio = module::get_var("th_greydragon", "thumb_ratio", "photo");
        $thumb_ratio = $form->edit_theme_adv_thumb->thumb_ratio->value;
        $thumb_ratio_ex = $form->edit_theme_adv_thumb->thumb_ratio_ex->value;
        if ($thumb_ratio_ex):
          $thumb_ratio .= "_ex";
        endif;

        if ($thumb_ratio_ex):
          $thumb_size   = 300;  
        else:
          $thumb_size   = 200;
        endif;

        if ($thumb_ratio == "photo"):
          $rule = Image::AUTO;
        else:
          $rule = Image::WIDTH;
        endif;

        if ($build_thumbs):
          graphics::remove_rule("gallery", "thumb", "gallery_graphics::resize");
          graphics::add_rule("gallery", "thumb", "gallery_graphics::resize",
            array("width" => $thumb_size, "height" => $thumb_size, "master" => $rule), $thumb_quality);
        endif;

        if (module::get_var("gallery", "thumb_size") != $thumb_size):
          module::set_var("gallery", "thumb_size", $thumb_size);
        endif;

        $row_count    = $form->edit_theme->row_count->value;
        $column_count = $form->edit_theme->column_count->value;
        $this->save_item_state("row_count", 3, $row_count);
        $this->save_item_state("column_count", 3, $column_count);
        if ($column_count == -1):
          $column_count = 3;
        endif;
        module::set_var("gallery", "page_size", $row_count * $column_count);
        module::set_var("gallery", "header_text", $form->edit_theme->header_text->value);
        module::set_var("gallery", "footer_text", $form->edit_theme->footer_text->value);
        module::set_var("gallery", "favicon_url", $form->edit_theme->favicon->value);
        module::set_var("gallery", "apple_touch_icon_url", $form->edit_theme->appletouchicon->value);

        $this->save_item_state("copyright", $form->edit_theme->copyright->value, $form->edit_theme->copyright->value);
        $this->save_item_state("logo_path", $form->edit_theme->logo_path->value, $form->edit_theme->logo_path->value);
        $this->save_item_state("color_pack", (($color_pack) and ($color_pack != "greydragon")), $color_pack);
        $this->save_item_state("frame_pack", (($frame_pack) and ($frame_pack != "greydragon")), $frame_pack);

        $auto_delay = $form->edit_theme->g_auto_delay->value;
        $this->save_item_state("auto_delay", $auto_delay != 30, $auto_delay);

        // * Advanced Options - General ******************************************

        $this->save_item_state("viewmode",              $form->edit_theme_adv_main->viewmode->value != "default", $form->edit_theme_adv_main->viewmode->value);
        $this->save_item_state("toolbar_large",         $form->edit_theme_adv_main->toolbar_large->value, TRUE);
        module::set_var("gallery", "show_credits",      $form->edit_theme_adv_main->show_credits->value);
        $this->save_item_state("show_guest_menu",       $form->edit_theme_adv_main->show_guest_menu->value, TRUE);
        $this->save_item_state("loginmenu_position",    $form->edit_theme_adv_main->loginmenu_position->value != "default", $form->edit_theme_adv_main->loginmenu_position->value);
        $this->save_item_state("mainmenu_position",     $form->edit_theme_adv_main->mainmenu_position->value != "default", $form->edit_theme_adv_main->mainmenu_position->value);
        $this->save_item_state("breadcrumbs_position",  $form->edit_theme_adv_main->breadcrumbs_position->value != "default", $form->edit_theme_adv_main->breadcrumbs_position->value);
        $this->save_item_state("breadcrumbs_showinroot",$form->edit_theme_adv_main->breadcrumbs_showinroot->value, TRUE);
        $this->save_item_state("custom_css_path",       $form->edit_theme_adv_main->custom_css_path->value != "", $form->edit_theme_adv_main->custom_css_path->value);
        $this->save_item_state("disable_seosupport",    $form->edit_theme_adv_main->disable_seosupport->value, TRUE);
        $this->save_item_state("desc_allowbbcode", 			$form->edit_theme_adv_main->desc_allowbbcode->value, TRUE);
        $this->save_item_state("resize_quality",        $resize_quality != 100, $resize_quality);
        $this->save_item_state("thumb_quality",         $thumb_quality != 100,  $thumb_quality);
        module::set_var("gallery", "visible_title_length", $form->edit_theme_adv_main->visible_title_length->value);
        $this->save_item_state("title_source",          $form->edit_theme_adv_main->title_source->value != "default", $form->edit_theme_adv_main->title_source->value);
        $this->save_item_state("use_permalinks",        $form->edit_theme_adv_main->use_permalinks->value, TRUE);

        // * Advanced Options - Album page ***************************************

        $this->save_item_state("album_descmode",    $form->edit_theme_adv_album->album_descmode->value != "hide", $form->edit_theme_adv_album->album_descmode->value);
        $this->save_item_state("paginator_album",   $form->edit_theme_adv_album->paginator_album->value != "top", $form->edit_theme_adv_album->paginator_album->value);
        $this->save_item_state("disablephotopage",  $form->edit_theme_adv_album->disablephotopage->value, TRUE);
        $this->save_item_state("hidecontextmenu",   $form->edit_theme_adv_album->hidecontextmenu->value, TRUE);

        // * Advanced Options - Album page - Thumbs ******************************

        $this->save_item_state("thumb_ratio",       $thumb_ratio != "photo", $thumb_ratio);
        $this->save_item_state("thumb_imgalign",    $thumb_imgalign != "top", $thumb_imgalign);
        $this->save_item_state("thumb_descmode_a",  $thumb_descmode_a != "overlay", $thumb_descmode_a);
        $this->save_item_state("thumb_descmode",    $thumb_descmode != "overlay", $thumb_descmode);
        $this->save_item_state("thumb_metamode",    $thumb_metamode != "default", $thumb_metamode);
        $this->save_item_state("thumb_random",      $form->edit_theme_adv_thumb->thumb_random->value, TRUE);

        // * Advanced Options - Photo page ***************************************

        $this->save_item_state("paginator_photo",  $form->edit_theme_adv_photo->paginator_photo->value != "top", $form->edit_theme_adv_photo->paginator_photo->value);
        $this->save_item_state("photo_descmode",   $photo_descmode != "overlay_top", $photo_descmode);
        $this->save_item_state("photo_popupbox",   $photo_popupbox != "default", $photo_popupbox);
        $this->save_item_state("thumb_inpage",     $form->edit_theme_adv_photo->thumb_inpage->value, TRUE);
        $this->save_item_state("hide_photometa",   !$form->edit_theme_adv_photo->hide_photometa->value, FALSE);

        // * Advanced Options - Root page ****************************************

        $rssmodulecheck = module::is_active("rss") and module::info("rss");

        $root_feed = $form->edit_theme_adv_root->root_feed->value;
        $root_cyclemode = $form->edit_theme_adv_root->root_cyclemode->value;
        $root_delay = $form->edit_theme_adv_root->root_delay->value;
        $root_description = $form->edit_theme_adv_root->root_description->value;

        $this->save_item_state("allow_root_page", $form->edit_theme_adv_root->allow_root_page->value, TRUE);
        $this->save_item_state("hide_root_desc",  !$form->edit_theme_adv_root->show_root_desc->value, TRUE);
        $this->save_item_state("root_feed", $root_feed != "gallery/latest", $root_feed);
        $this->save_item_state("root_cyclemode", $root_cyclemode != "fade", $root_cyclemode);
        $this->save_item_state("root_delay", $root_delay != "15", $root_delay);
        $this->save_item_state("hide_root_sidebar", $form->edit_theme_adv_root->hide_root_sidebar->value, TRUE);
        $this->save_item_state("root_description", $root_description, $root_description);

        // * Sidebar Options *****************************************************

        $sidebar_allowed = $form->edit_theme_side->sidebar_allowed->value;
        $sidebar_visible = $form->edit_theme_side->sidebar_visible->value;    

        if ($sidebar_allowed == "right"):
          $sidebar_visible = "right";
        endif;
        if ($sidebar_allowed == "left"):
          $sidebar_visible = "left";
        endif;

        $this->save_item_state("hide_blockheader",  $form->edit_theme_side->hide_blockheader->value, TRUE);
        $this->save_item_state("sidebar_albumonly", $form->edit_theme_side->sidebar_albumonly->value, TRUE);
        $this->save_item_state("sidebar_hideguest", !$form->edit_theme_side->sidebar_hideguest->value, TRUE);
        $this->save_item_state("sidebar_allowed",   $sidebar_allowed != "any",   $sidebar_allowed);
        $this->save_item_state("sidebar_visible",   $sidebar_visible != "right", $sidebar_visible);

        $this->save_item_state("last_update",   		TRUE, time());

        module::event("theme_edit_form_completed", $form);

        if ($_priorratio != $thumb_ratio):
          message::warning(t("Thumb aspect ratio has been changed. Consider rebuilding thumbs if needed."));
        endif;

        message::success(t("Updated theme details"));

        if ($build_exif):
          db::update('exif_records')
            ->set(array('dirty'=>'1'))
            ->execute();
        endif;

        if ($build_iptc):
          db::update('iptc_records')
            ->set(array('dirty'=>'1'))
            ->execute();
        endif;

        if ($purge_cache):
          db::build()
            ->delete("caches")
            ->execute();
        endif;
      endif;
      url::redirect("admin/theme_options");
    else:
      print $this->get_admin_view();
    endif;
  }

  protected function get_admin_view() {
    $view = new Admin_View("admin.html");
    $view->page_title = t("Grey Dragon Theme");
    $view->content = new View("admin_theme_options.html");
    $view->content->name = self::get_theme_name();
    $view->content->version = self::get_theme_version();
    $view->content->form = self::get_edit_form_admin();
    $view->content->help = self::get_edit_form_help();
    return $view;
  }

  public function index() {
    site_status::clear("gd_init_configuration");
    print $this->get_admin_view();
  }
}
?>