/*

  * MP3/MPlayer plugin to VDR (C++)

  *

  * (C) 2001-2009 Stefan Huelswitt <s.huelswitt@gmx.de>

  *

  * This code 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 code 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html

  */

 #include <ctype.h>

 #include <dirent.h>

 #include <stdlib.h>

 #include <stdio.h>

 #include <errno.h>

 #include <sys/stat.h>

 #include <sys/ioctl.h>

 #include <sys/types.h>

 #include <unistd.h>

 #include "common.h"

 #include "menu.h"

 #include "data.h"

 #include "data-src.h"

 #include "i18n.h"

 // -----------------------------------------------------------------------------

 void Status(const char *text)

 {

   Skins.Message(mtStatus,text);

 }

 void Error(const char *text)

 {

   Skins.Message(mtError,text);

 }

 void Info(const char *text)

 {

   Skins.Message(mtInfo,text);

 }

 // --- cMenuBrowseItem ---------------------------------------------------------

 class cMenuBrowseItem : public cOsdItem {

   private:

   cFileObj *item;

   virtual void Set(void);

 public:

   cMenuBrowseItem(cFileObj *Item);

   cFileObj *Item(void) { return item; }

   };

 cMenuBrowseItem::cMenuBrowseItem(cFileObj *Item)

 {

   item = Item;

   Set();

 }

 void cMenuBrowseItem::Set(void)

 {

   char *buffer=aprintf(item->Type()==otFile?"%s":"[%s]",item->Name());

   SetText(buffer,false);

 }

 // --- cMenuBrowse ------------------------------------------------------

 cFileObj *cMenuBrowse::lastselect=0;

 cMenuBrowse::cMenuBrowse(cFileSource *Source, bool Dirselect, bool WithID3, const char *title, const char * const *Excl)

 :cOsdMenu(title)

 {

   currentdir=parent=0;

   delete lastselect; lastselect=0;

   list=new cDirList;

   dirselectable=Dirselect;

   withID3=WithID3;

   excl=Excl;

   SetSource(Source); 

   NewDir(currentdir);

 }

 cMenuBrowse::~cMenuBrowse()

 {

   free(parent);

   free(currentdir);

   delete list;

 }

 cFileObj *cMenuBrowse::CurrentItem(void)

 {

   cMenuBrowseItem *item = (cMenuBrowseItem *)Get(Current());

   return item ? item->Item():0;

 }

 void cMenuBrowse::SetButtons(void)

 {

   SetHelp(tr("Select"), currentdir?tr("Parent"):0, 0, withID3?tr("ID3 info"):0);

   Display();

 }

 void cMenuBrowse::SetSource(cFileSource *Source)

 {

   source=Source;

   free(currentdir); currentdir=0;

   free(parent); parent=0;

   source->GetRemember(currentdir,parent);

 }

 bool cMenuBrowse::LoadDir(const char *dir)

 {

   Clear();

   Status(tr("Scanning directory..."));

   bool res=list->Load(source,dir,excl);

   if(res) {

     cFileObj *item=list->First();

     while(item) {

       Add(new cMenuBrowseItem(item),(parent && !strcmp(item->Name(),parent)));

       item=list->Next(item);

       }

     }

   Status(0);

   return res;

 }

 bool cMenuBrowse::NewDir(const char *dir)

 {

   char *ncur=dir ? strdup(dir):0;

   bool r=LoadDir(ncur);

   if(!r && ncur) {

     free(ncur); ncur=0;

     r=LoadDir(ncur);

     }

   if(r) {

     free(currentdir); currentdir=ncur;

     cFileObj *item=CurrentItem();

     source->SetRemember(currentdir,item?item->Name():0);

     SetButtons();

     return true;

     }

   free(ncur);

   Error(tr("Error scanning directory!"));

   return false;

 }

 eOSState cMenuBrowse::Parent(void)

 {

   eOSState res=osContinue;

   if(currentdir) {

     free(parent);

     char *ss=strrchr(currentdir,'/');

     if(ss) {

       *ss++=0;

       parent=strdup(ss);

       ss=currentdir;

       }

     else parent=strdup(currentdir);

     if(!NewDir(ss)) res=osEnd;

     }

   return res;

 }

 eOSState cMenuBrowse::Select(bool isred)

 {

   eOSState res=osContinue;

   cFileObj *item;

   if((item=CurrentItem())) {

     switch(item->Type()) {

       case otParent:

         if(!isred || !dirselectable)

           res=Parent();

         break;

       case otDir:

         if(!isred || !dirselectable) {

           if(!NewDir(item->Path())) res=osEnd;

           break;

           }

         // fall through to otFile

       case otFile:

         lastselect=new cFileObj(item);

         res=osBack;

         break;

       default:

         break;

       }

     } 

   return res;

 }

 eOSState cMenuBrowse::ID3Info(void)

 {

   return osContinue;

 }

 eOSState cMenuBrowse::ProcessStdKey(eKeys Key, eOSState state)

 {

   if(state==osUnknown) {

     switch (Key) {

       case kOk:     state=Select(false); break;

       case kRed:    state=Select(true); break;

       case kGreen:  state=Parent(); break;

       case kBlue:   if(withID3) state=ID3Info();

                     break;

       //case kMenu:   state=osEnd; break;

       default: break;

       }

     }

   if(state==osEnd || state==osBack) {

     cFileObj *item=CurrentItem();

     if(item) source->SetRemember(currentdir,item->Name());

     }

   return state;

 }

 // --- cMenuSourceItem ----------------------------------------------------------

 class cMenuSourceItem : public cOsdItem {

   private:

   cFileSource *source;

   virtual void Set(void);

 public:

   cMenuSourceItem(cFileSource *Source);

   cFileSource *Source(void) { return source; }

   };

 cMenuSourceItem::cMenuSourceItem(cFileSource *Source)

 {

   source=Source;

   Set();

 }

 void cMenuSourceItem::Set(void)

 {

   char *buffer=aprintf("%s\t%s\t%s", source->NeedsMount()?(source->Status()?"*":">"):"", source->Description(), source->BaseDir());

   SetText(buffer,false);

 }

 // --- cMenuSource --------------------------------------------------

 cFileSource *cMenuSource::selected=0;

 cMenuSource::cMenuSource(cFileSources *Sources, const char *title)

 :cOsdMenu(title,2,20)

 {

   selected=0;

   current=Sources->GetSource();

   cFileSource *source=Sources->First();

   while(source) {

     cOsdMenu::Add(new cMenuSourceItem(source),source==current);

     source=Sources->Next(source);

     }

   SetHelp(tr("Select"), tr("Mount"), tr("Unmount"), tr("Eject"));

   Display();

 }

 bool cMenuSource::DoMount(cFileSource *src)

 {

   bool res=src->Mount();

   RefreshCurrent();

   DisplayCurrent(true);

   return res;

 }

 bool cMenuSource::CheckMount(void)

 {

   cFileSource *src=selected ? selected:current;

   if(src->NeedsMount() && !src->Status()) {

     Error(tr("Selected source is not mounted!"));

     return false;

     }

   return true;

 }

 eOSState cMenuSource::Select(void)

 {

   if(HasSubMenu() || Count() == 0) return osContinue;

   cFileSource *src = ((cMenuSourceItem *)Get(Current()))->Source();

   if(src->NeedsMount() && !src->Status()) {

     if(!DoMount(src)) Error(tr("Mount failed!"));

     }

   if(!src->NeedsMount() || src->Status()) {

     selected=src;

     return osBack;

     }

   return osContinue;

 }

 eOSState cMenuSource::Mount(void)

 {

   if(HasSubMenu() || Count() == 0) return osContinue;

   cFileSource *src = ((cMenuSourceItem *)Get(Current()))->Source();

   if(src->NeedsMount() && !src->Status()) {

     if(DoMount(src)) Info(tr("Mount succeeded"));

     else Error(tr("Mount failed!"));

     }

   return osContinue;

 }

 eOSState cMenuSource::Unmount(void)

 {

   if(HasSubMenu() || Count() == 0) return osContinue;

   cFileSource *src = ((cMenuSourceItem *)Get(Current()))->Source();

   if(src->NeedsMount() && src->Status()) {

     bool res=src->Unmount();

     RefreshCurrent();

     DisplayCurrent(true);

     if(res) Info(tr("Unmount succeeded"));

     else Error(tr("Unmount failed!"));

     }

   return osContinue;

 }

 eOSState cMenuSource::Eject(void)

 {

   if(HasSubMenu() || Count() == 0) return osContinue;

   cFileSource *src = ((cMenuSourceItem *)Get(Current()))->Source();

   if(src->NeedsMount()) {

     bool res=src->Eject();

     RefreshCurrent();

     DisplayCurrent(true);

     if(!res) Error(tr("Eject failed!"));

     }

   return osContinue;

 }

 eOSState cMenuSource::ProcessKey(eKeys Key)

 {

   eOSState state = cOsdMenu::ProcessKey(Key);

   if(state==osBack && !CheckMount()) state=osContinue;

   if(state==osUnknown) {

      switch(Key) {

        case kOk:     

        case kRed:    return Select();

        case kGreen:  return Mount();

        case kYellow: return Unmount();

        case kBlue:   return Eject();

        case kMenu:   CheckMount(); return osEnd;

        default: break;

        }

      }

   return state;

 }

 // --- cProgressBar ------------------------------------------------------------

 cProgressBar::cProgressBar(int Width, int Height, int Current, int Total)

 :cBitmap(Width, Height, 2)

 {

   if(Total > 0) {

     int p = Current * Width / Total;;

     DrawRectangle(0, 0, p, Height - 1, clrGreen);

     DrawRectangle(p + 1, 0, Width - 1, Height - 1, clrWhite);

     }

 }