Fossil

**
** Implementation of the Setup page for "skins".
*/
#include "config.h"
#include <assert.h>
#include "skins.h"

/*
** SETTING: default-skin width=16
**
** If the text value if this setting is the name of a built-in skin
** then the named skin becomes the default skin for the repository.
*/

/*
** An array of available built-in skins.
**
** To add new built-in skins:
**
**    1.  Pick a name for the new skin.  (Here we use "xyzzy").
**

*/
#if INTERFACE
#define SKIN_FROM_DRAFT     0   /* The "draftN" prefix on the PATH_INFO */
#define SKIN_FROM_CMDLINE   1   /* --skin option to server command-line */
#define SKIN_FROM_CGI       2   /* skin: parameter in CGI script */
#define SKIN_FROM_QPARAM    3   /* skin= query parameter */
#define SKIN_FROM_COOKIE    4   /* skin= from fossil_display_settings cookie*/
#define SKIN_FROM_SETTING   5   /* Built-in named by "default-skin" setting */
#define SKIN_FROM_CUSTOM    6   /* Skin values in CONFIG table */
#define SKIN_FROM_DEFAULT   7   /* The built-in named "default" */
#define SKIN_FROM_UNKNOWN   8   /* Do not yet know which skin to use */
#endif /* INTERFACE */
static int iSkinSource = SKIN_FROM_UNKNOWN;


/*
** Skin details are a set of key/value pairs that define display
** attributes of the skin that cannot be easily specified using CSS
** or that need to be known on the server-side.
**

**    "fossil http", or  the "skin:" CGI config setting.
**
** 2) The "skin" display setting cookie or URL argument, in that
**    order. If the "skin" URL argument is provided and refers to a legal
**    skin then that will update the display cookie. If the skin name is
**    illegal it is silently ignored.
**
** 3) The built-in skin identfied by the "default-skin" setting, if such
**    a setting exists and matches one of the built-in skin names.
**
** 4) Skin properties (settings "css", "details", "footer", "header",
**    and "js") from the CONFIG db table
**
** 5) The built-in skin named "default"
**
** The iSource integer privides additional detail about where the skin
**
** As a special case, a NULL or empty name resets zAltSkinDir and
** pAltSkin to 0 to indicate that the current config-side skin should
** be used (rank 3, above), then returns 0.
*/

      Blob x;
      blob_read_from_file(&x, z, ExtFILE);
      fossil_free(z);
      return blob_str(&x);
    }
    fossil_free(z);
  }
  if( iSkinSource==SKIN_FROM_UNKNOWN ){
    const char *zDflt = db_get("default-skin", 0);
    iSkinSource = SKIN_FROM_DEFAULT;
    if( zDflt!=0 ){
      int i;
      for(i=0; i<count(aBuiltinSkin); i++){
        if( fossil_strcmp(aBuiltinSkin[i].zLabel, zDflt)==0 ){
          pAltSkin = &aBuiltinSkin[i];
          iSkinSource = SKIN_FROM_SETTING;
          break;
        }
      }
    }
  }
  if( pAltSkin ){
    z = mprintf("skins/%s/%s.txt", pAltSkin->zLabel, zWhat);
    zOut = builtin_text(z);
    fossil_free(z);
  }else{
    zOut = db_get(zWhat, 0);
    if( zOut==0 ){

      case SKIN_FROM_QPARAM:
        @ the "skin=NAME" query parameter.
        break;
      case SKIN_FROM_COOKIE:
        @ the "skin" value of the 
        @ <a href='./fdscookie'>fossil_display_setting</a> cookie.
        break;
      case SKIN_FROM_SETTING:
        @ the "default-skin" setting.
        break;
      default:
        @ reasons unknown.  (Fix me!)
        break;
    }
    @ </tr>
  }
  db_prepare(&q,

      case SKIN_FROM_QPARAM:
         @ the "skin=NAME" query parameter on the URL.
         break;
      case SKIN_FROM_COOKIE:
         @ the "skin" property in the
         @ "%z(href("%R/fdscookie"))fossil_display_settings</a>" cookie.
         break;
      case SKIN_FROM_SETTING:
         @ the "default-skin" setting on the repository.
         break;
    }
  }
  style_finish_page();
  fossil_free(zBase);
}