unit mainForm;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,CoolTrayIcon, ImgList, Menus, IdBaseComponent,IdComponent,
  IdTCPConnection, IdTCPClient, IdMessageClient, IdPOP3, ExtCtrls, StdCtrls,
  IdMessage, ComCtrls,INIFiles, ToolWin, ActnList;

type
  TinitForm = class(TForm)
    CoolTrayIcon1: TCoolTrayIcon;
    PopupMenu1: TPopupMenu;
    ImageList2: TImageList;
    menu_showMainFrorm: TMenuItem;
    menu_abort: TMenuItem;
    Timer1: TTimer;
    POP: TIdPOP3;
    menu_exit: TMenuItem;
    Msg: TIdMessage;
    lvHeaders: TListView;
    MainMenu1: TMainMenu;
    N_system: TMenuItem;
    N_exit: TMenuItem;
    StatusBar1: TStatusBar;
    N_helpmenu: TMenuItem;
    N_abort: TMenuItem;
    N_help: TMenuItem;
    menu_refurbish: TMenuItem;
    Panel1: TPanel;
    N_refurbish: TMenuItem;
    ToolBar1: TToolBar;
    ToolButton_checkMail: TToolButton;
    ToolButton_disconnect: TToolButton;
    ToolButton_setup: TToolButton;
    ImageList1: TImageList;
    ActionList1: TActionList;
    CheckMail: TAction;
    Disconnect: TAction;
    setup: TAction;
    Panel2: TPanel;
    ToolButton1: TToolButton;
    N_config: TMenuItem;
    menu_config: TMenuItem;
    Memo1: TMemo;
    ToolButton2: TToolButton;
    refurbish: TAction;
    procedure FormCreate(Sender: TObject);    
    procedure menu_exitClick(Sender: TObject);
    procedure menu_abortClick(Sender: TObject);
    procedure menu_showMainFrormClick(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure menu_refurbishClick(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure lvHeadersDblClick(Sender: TObject);
    procedure CheckMailExecute(Sender: TObject);
    procedure DisconnectExecute(Sender: TObject);
    procedure setupExecute(Sender: TObject);
    procedure N_configClick(Sender: TObject);
  private
    //----檢查Email----//
    procedure CheckEmail();
    //----控制托盤圖標(biāo)是否閃爍----//
    procedure TrayIconFlash(isFlash : Boolean);
    //----建立pop3連接----//
    function ConnectPop3():Integer;
    //----斷開pop3連接----//
    procedure DisconnectPop3();
    //----Base64編碼轉(zhuǎn)換----//
    function DecodeBase64(s: string): String;
    //----讀取Config.ini配置信息----//
    procedure ReadConfigInfo();
    //----根據(jù)連接狀態(tài)改變參數(shù)----//
    procedure ToggleStatus(const Status: Boolean);
  public

  end;

var
  //****Form Object****//
  initForm: TinitForm; //主窗體 現(xiàn)實(shí)信息列表

  Pop3ServerName : String; //pop3服務(wù)名
  Pop3ServerUser : String; //pop3用戶名
  Pop3ServerPassword : String; //pop3密碼
  Pop3ServerPort : Integer; //pop3端口號(hào)
  UserEmail : String;  //個(gè)人Email
  TimerNum : Integer;  //定時(shí)刷新間隔分鐘數(shù)

  srtHitInfo:String; //系統(tǒng)提示信息
  FMsgCount : Integer; //郵件數(shù)
implementation

{$R *.dfm}

uses messageBox,config;

//****私有方法****//

//----檢查Email,將Email信息寫入ListView----//
procedure TinitForm.CheckEmail();
var
   itm: TListItem;  //列表對(duì)象
   intIndex: integer; //Email索引值
begin
   //showmessage(inttostr(FMsgCount));
   srtHitInfo:= '  您好,信箱中沒有您的Email!';
   if FMsgCount > 0 then
   begin
    lvHeaders.Clear;  //清空ListView
    //----循環(huán)取Email信息----//
    for intIndex:=FMsgCount downto 1 do
    begin
     Msg.Clear;
     POP.RetrieveHeader(intIndex, Msg);  //獲取相應(yīng)索引的Email信息
     itm:= lvHeaders.Items.Add;
     itm.ImageIndex := 3;
     itm.Caption := DecodeBase64(Msg.Subject);
     itm.SubItems.Add(Msg.From.Text);
     itm.SubItems.Add(FormatDateTime('yyyy-mm-dd hh:mm:ss', Msg.Date));
     itm.SubItems.Add(IntToStr(POP.RetrieveMsgSize(intIndex)));
     itm.SubItems.Add('n/a-'+IntToStr(Msg.MessageParts.Count));
    end; // for end

    //----托盤圖標(biāo)閃爍----//
    self.TrayIconFlash(True);

    //----更新系統(tǒng)提示信息----//
    srtHitInfo:= '  您好,您信箱中有"'+intTostr(FMsgCount)+'"封Email!,注意接收!';
    MsgBox.Label_msgInfo.Caption:=srtHitInfo;
    MsgBox.FormStyle:=fsStayOnTop;
    CoolTrayIcon1.Hint:= srtHitInfo;
    StatusBar1.Panels[0].Text:= srtHitInfo;

    //----控制提示窗口----//
    //ShowMessage(booltostr(Assigned(Application.FindComponent('MsgBox'))));
    if Assigned(Application.FindComponent('MsgBox')) then
    begin
      if not initForm.Showing then
      begin
        MsgBox.Show;
      end
      else
      begin
        MsgBox.Hide;
      end;
    end;

   end; //"if FMsgCount > 0" End
end;

//----控制托盤圖標(biāo)閃爍----//
procedure TinitForm.TrayIconFlash(isFlash: Boolean);
begin
  CoolTrayIcon1.CycleIcons := False;
  if isFlash then
  begin
    CoolTrayIcon1.IconList := ImageList1;
    CoolTrayIcon1.CycleInterval := 400;
    CoolTrayIcon1.CycleIcons := True;
  end
  else
  begin
    CoolTrayIcon1.CycleIcons := False;
    CoolTrayIcon1.IconList := ImageList1;
  end;
end;

function TinitForm.ConnectPop3: Integer;
var
  msgCount:Integer;
begin
  try
    //----建立pop3連接----//
    StatusBar1.Panels[1].Text:= '連接中...';
    StatusBar1.Refresh;
    if POP.Connected then
    begin
      POP.Disconnect;
    end;
    POP.Host := Pop3ServerName;
    POP.Port := Pop3ServerPort;
    POP.Username := Pop3ServerUser;
    POP.Password := Pop3ServerPassword;
    POP.Connect;
    msgCount := POP.CheckMessages;   //郵件數(shù)量
    self.ToggleStatus(true);
    result := msgCount;
  except
    self.ToggleStatus(false);
    result:=-1;  
  end;
end;

//----斷開pop3連接----//
procedure TinitForm.DisconnectPop3;
begin
    if POP.Connected then
    begin
      POP.Disconnect;
      self.ToggleStatus(false);
    end;
end;

//----從Config.ini文件讀取配置信息----//
procedure TinitForm.ReadConfigInfo;
var
  SYSINI: TINIFile;
begin
  SYSINI := TIniFile.Create(ExtractFilePath(Application.ExeName)+'\Config.ini');

  Pop3ServerName := SYSINI.ReadString('POP3ServerINFO', 'Pop3ServerName', '');
  Pop3ServerPort := strtoint(SYSINI.ReadString('POP3ServerINFO', 'Pop3ServerPort', ''));
  Pop3ServerUser := SYSINI.ReadString('POP3ServerINFO', 'Pop3ServerUser', '');
  Pop3ServerPassword := SYSINI.ReadString('POP3ServerINFO', 'Pop3ServerPassword', '');

  TimerNum:=strtoint(SYSINI.ReadString('Config', 'Timer', ''));
  UserEmail := SYSINI.ReadString('Email', 'UserEmail', '');
  SYSINI.Free;
end;

//----Base64編碼轉(zhuǎn)換----//
function TinitForm.DecodeBase64(s: string): String;
var
  s1,s2,s3: integer;
  t,v: string;
  Encoding: char;
  hex,step: integer;
  a1: array[1..4] of byte;
  b1: array[1..3] of byte;
  j:  integer;
  byte_ptr,real_bytes: integer;
begin
  s1:=Pos('=?',s);
  s2:= 1 ;
  hex:= 0 ;
  if s1>0 then
  begin
    for s2:=Length(s)-1 downto 1 do
    begin
      if Copy(s,s2,2)='?=' then Break;
    end;
  end;
  if (s1=0) or (s2=1) then
  begin
    Result:=s;
    Exit;
  end;
  t:=Copy(s,s1+2,s2-2-s1);
  s3:=Pos('?',t);
  Delete(t,1,s3);
  if(t='')then
  begin
    Result:= s;
    Exit ;
  end ;
  Encoding:=t[1];
  Delete(t,1,2);
  v:='';
  step:=0;
  case Encoding of
  'Q':
    while t<>'' do
    begin
      case step of
      0:
        begin
          case t[1] of
          '_': v:=v+' ';
          '=': step:=1;
          else v:=v+t[1];
          end;
        end;
      1:
        begin
          if t[1]<='9' then hex:=(Ord(t[1])-Ord('0'))*16
          else hex:=(Ord(t[1])-55)*16;
          step:=2;
        end;
      2:
        begin
          if t[1]<='9' then hex:=hex+(Ord(t[1])-Ord('0'))
          else hex:=hex+Ord(t[1])-55;
          v:=v+Chr(hex);
          step:=0;
        end;
      end;
      Delete(t,1,1);
    end;
  'B':
    begin
      byte_ptr:=0;
      for j:=1 to Length(t) do
      begin
              Inc(byte_ptr);
              case t[j] of
              'A'..'Z': a1[byte_ptr]:=Ord(t[j])-65;
              'a'..'z': a1[byte_ptr]:=Ord(t[j])-71;
              '0'..'9': a1[byte_ptr]:=Ord(t[j])+4;
              '+': a1[byte_ptr]:=62;
              '/': a1[byte_ptr]:=63;
              '=': a1[byte_ptr]:=64;
              end;
              if byte_ptr=4 then
              begin
                      byte_ptr:=0;
                      real_bytes:=3;
                      if a1[1]=64 then real_bytes:=0;
                      if a1[3]=64 then
                      begin
                              a1[3]:=0;
                              a1[4]:=0;
                              real_bytes:=1;
                      end;
                      if a1[4]=64 then
                      begin
                              a1[4]:=0;
                              real_bytes:=2;
                      end;
                      b1[1]:=a1[1]*4+(a1[2] div 16);
                      b1[2]:=(a1[2] mod 16)*16+(a1[3]div 4);
                      b1[3]:=(a1[3] mod 4)*64 +a1[4];
                      if(real_bytes>0)then
                        v:= v + chr(b1[1]) ;
                      if(real_bytes>1)then
                        v:= v + chr(b1[2]) ;
                      if(real_bytes>2)then
                        v:= v + chr(b1[3]) ;
              end;
      end;
    end;
  end;
  Result := v;
end;

procedure TinitForm.FormCreate(Sender: TObject);
begin
  CoolTrayIcon1.Refresh;
  try
    self.ReadConfigInfo;
  except
    MessageDlg('獲取系統(tǒng)配置信息失敗!',mtInformation,[mbOK],0);
    self.setupExecute(self);
  end;
  FMsgCount := self.ConnectPop3();
end;

procedure TinitForm.menu_exitClick(Sender: TObject);
begin  
  self.DisconnectPop3;
  self.Close;
end;

procedure TinitForm.menu_abortClick(Sender: TObject);
begin
  showmessage('提醒程序!');
end;

//----定時(shí)刷新----//
procedure TinitForm.Timer1Timer(Sender: TObject);
begin
  Timer1.Interval:=60000*TimerNum; //分鐘
  self.menu_refurbishClick(self);
end;

procedure TinitForm.menu_showMainFrormClick(Sender: TObject);
begin
  self.Show;
end;

procedure TinitForm.FormShow(Sender: TObject);
begin
  MsgBox.Hide;
  self.TrayIconFlash(false);
end;

//----手動(dòng)刷新----//
procedure TinitForm.menu_refurbishClick(Sender: TObject);
begin
  //----建立pop3連接----//
  FMsgCount := self.ConnectPop3();
  if FMsgCount=-1 then
    MessageDlg('Pop3服務(wù)器連接失敗!',mtInformation,[mbOK],0)
  else
    self.CheckEmail();
end;

procedure TinitForm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  Action := caMinimize;
  CoolTrayIcon1.HideMainForm;
end;

//----雙擊標(biāo)題----//
procedure TinitForm.lvHeadersDblClick(Sender: TObject);
var
  i:Integer;
begin
try   
  POP.Retrieve(lvHeaders.Selected.Index + 1, Msg);
  for i := 0 to Pred(Msg.MessageParts.Count) do
  begin
     //showmessage(inttostr(Msg.MessageParts.Count)+'#'+Msg.MessageParts.Items[i].Boundary+'#'+inttostr(Pred(Msg.MessageParts.Count))+'#'+inttostr(Msg.MessageParts.Count));
     if (Msg.MessageParts.Items[i] is TIdAttachment) then
     begin
      //Memo1.Lines.Clear;
      //Memo1.Text:=TIdAttachment(Msg.MessageParts.Items[i]).Filename+TIdAttachment(Msg.MessageParts.Items[i]).ContentType;
     end;
     if Msg.MessageParts.Items[i] is TIdText then
     begin
      Panel2.Visible:=True;
      Memo1.Lines.Clear;
      Memo1.Lines.AddStrings(TIdText(Msg.MessageParts.Items[i]).Body);
     end;
  end;
except
end;
end;

procedure TinitForm.CheckMailExecute(Sender: TObject);
begin
  //----建立pop3連接----//
  FMsgCount := self.ConnectPop3();
  if FMsgCount=-1 then
    MessageDlg('Pop3服務(wù)器連接失敗!',mtInformation,[mbOK],0)
  else
    self.CheckEmail();
end;

procedure TinitForm.DisconnectExecute(Sender: TObject);
begin
  self.DisconnectPop3;
end;

procedure TinitForm.setupExecute(Sender: TObject);
begin
  Application.CreateForm(TConfigForm, ConfigForm);
  ConfigForm.ShowModal;
end;

procedure TinitForm.ToggleStatus(const Status: Boolean);
begin
  self.CheckMail.Enabled := not Status;
  self.refurbish.Enabled:= Status;
  self.Disconnect.Enabled := Status;
  if Status then
  begin
    StatusBar1.Panels[1].Text:= '已連接';
  end
  else
  begin
    StatusBar1.Panels[1].Text:= '已斷開';
  end;
end;

procedure TinitForm.N_configClick(Sender: TObject);
begin
  Application.CreateForm(TConfigForm, ConfigForm);
  ConfigForm.ShowModal;
end;

end.