unit UnitChangePassword;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Buttons, ExtCtrls, AnyDBFactory;

type
  TForm_ChangePassword = class(TForm)
    Label1: TLabel;
    Label3: TLabel;
    UserName: TEdit;
    OldPassword: TEdit;
    BtnOk: TBitBtn;
    BtnCancel: TBitBtn;
    Label4: TLabel;
    Label2: TLabel;
    NewPassword: TEdit;
    CheckPassword: TEdit;
    procedure BtnOkClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure OldPasswordKeyPress(Sender: TObject; var Key: Char);
    procedure CheckPasswordKeyPress(Sender: TObject; var Key: Char);
    procedure NewPasswordKeyPress(Sender: TObject; var Key: Char);
    procedure BtnCancelClick(Sender: TObject);
    procedure UserNameKeyPress(Sender: TObject; var Key: Char);
  private
    FIsOk: Boolean;
    FDBFactory: TAnyDBFactory;
    { Private declarations }
  public
    { Public declarations }
    property DBFactory:TAnyDBFactory read FDBFactory write FDBFactory;
    property IsOK:Boolean read FIsOk;
  end;

var
  Form_ChangePassword: TForm_ChangePassword;

function ChangeUserPasswordWithDialog(ADBFactory:TAnyDBFactory): Boolean;

implementation

uses mis_Instance, AnyPoster, BusinessDialogs, mis_RightDBStore;

{$R *.DFM}

function ChangeUserPasswordWithDialog(ADBFactory:TAnyDBFactory): Boolean;
begin
  with TForm_ChangePassword.Create(Application) do
  begin
    try
      DBFactory:=ADBFactory;
      ActiveControl:=UserName;
      ShowModal;
      Result:=IsOk
    finally
      Free;
    end;
  end;
end;

procedure TForm_ChangePassword.BtnOkClick(Sender: TObject);
begin
  if (NewPassword.text='') or (CheckPassword.text='') then
  begin
    MyDefInformation('  你必須有密碼！  ');
    Exit;
  end;
  if uppercase(NewPassword.text)<>uppercase(CheckPassword.text) then
  begin
    MyDefInformation('  兩次密碼輸入不一致  ');
    Exit;
  end;
  try
    if ChangeUserPassword(FDBFactory,
                          App_UserInfo.UserName,
                          App_UserInfo.Password,
                          NewPassword.text) then
      MyDefInformation('密碼修改成功！')
    else
      MyDefInformation('用戶信息已被刪除，無法修改密碼！');
  except
    MyWarning('密碼修改失敗，請重試！');
  end;
  FIsOk:=True;
  Close;
end;

procedure TForm_ChangePassword.FormCreate(Sender: TObject);
begin
  UserName.Text :=App_UserInfo.UserName;
  FIsOk:=False;
end;

procedure TForm_ChangePassword.OldPasswordKeyPress(Sender: TObject;
  var Key: Char);
begin
  if Word(Key)=vk_return then
  begin
    if uppercase(App_UserInfo.Password)=uppercase(OldPassword.Text) then
    begin
      NewPassword.enabled:=true;
      CheckPassword.enabled:=true;
      NewPassword.Color:=clWindow;
      CheckPassword.Color:=clWindow;
      NewPassword.SetFocus;
    end
    else
    begin
      NewPassword.enabled:=false;
      CheckPassword.enabled:=false;
      NewPassword.Color:=clBtnFace;
      CheckPassword.Color:=clBtnFace;
      MyWarning('密碼不正確，請重新輸入！');
    end
  end;
end;

procedure TForm_ChangePassword.CheckPasswordKeyPress(Sender: TObject;
  var Key: Char);
begin
  if Word(Key)=vk_return then
  begin
    Key :=#0;
    BtnOk.setfocus;
  end;
end;

procedure TForm_ChangePassword.NewPasswordKeyPress(Sender: TObject;
  var Key: Char);
begin
  if Word(Key)=vk_return then
  begin
    Key :=#0;
    CheckPassword.setfocus;
  end;
end;

procedure TForm_ChangePassword.BtnCancelClick(Sender: TObject);
begin
  Close;
end;

procedure TForm_ChangePassword.UserNameKeyPress(Sender: TObject;
  var Key: Char);
begin
  if Word(Key)=vk_return then
  begin
    Key :=#0;
    CheckPassword.setfocus;
  end;
end;

end.