unit uDialogElegirEMail;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, uDialogBase, ActnList, StdCtrls, ExtCtrls, dxSkinsCore, dxSkinBlue,
  dxSkinCaramel, dxSkinCoffee, dxSkinGlassOceans, dxSkiniMaginary, dxSkinLilian,
  dxSkinLiquidSky, dxSkinLondonLiquidSky, dxSkinMcSkin, dxSkinMoneyTwins,
  dxSkinOffice2007Black, dxSkinOffice2007Blue, dxSkinOffice2007Green,
  dxSkinOffice2007Pink, dxSkinOffice2007Silver, dxSkinSilver, dxSkinStardust,
  dxSkinsDefaultPainters, dxSkinValentine, dxSkinXmas2008Blue, cxControls,
  cxContainer, cxEdit, cxTextEdit, cxHyperLinkEdit;

type
  TfDialogElegirEMail = class(TfDialogBase)
    Panel1: TPanel;
    rbCombo: TRadioButton;
    cbEMail: TComboBox;
    rbEdit: TRadioButton;
    edtEMail: TcxHyperLinkEdit;
    procedure rbComboClick(Sender: TObject);
    procedure rbEditClick(Sender: TObject);
    procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
    procedure edtEMailPropertiesValidate(Sender: TObject;
      var DisplayValue: Variant; var ErrorText: TCaption; var Error: Boolean);
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure actAceptarExecute(Sender: TObject);
    procedure actCancelarExecute(Sender: TObject);
  private
    FListaDirecciones: TStringList;
    function GetEMailElegido: String;
    procedure ActualizarOpciones;
  public
    property EMailElegido: String read GetEMailElegido;
    property ListaDirecciones : TStringList read FListaDirecciones write FListaDirecciones;
  end;


  function ElegirEMail(const AListaEMails : TStringList; var AEMailElegido : String): Boolean;

implementation

{$R *.dfm}

uses
  uStringsUtils, uDialogUtils, uEMailUtils;

function ElegirEMail(const AListaEMails : TStringList; var AEMailElegido : String): Boolean;
var
  AEditor : TfDialogElegirEMail;
begin
  AEditor := TfDialogElegirEMail.Create(NIL);
  try
    AEditor.ListaDirecciones := AListaEMails;
    Result := (AEditor.ShowModal = mrOk);
    if Result then
      AEMailElegido := AEditor.EMailElegido;
  finally
    AEditor.Release;
  end;
end;


{ TfDialogElegirEMail }

procedure TfDialogElegirEMail.actAceptarExecute(Sender: TObject);
begin
  inherited;
  ModalResult := mrOk
end;

procedure TfDialogElegirEMail.actCancelarExecute(Sender: TObject);
begin
  inherited;
  ModalResult := mrCancel;
end;

procedure TfDialogElegirEMail.ActualizarOpciones;
begin
  if rbEdit.Checked then
  begin
    edtEMail.Enabled := True;
    rbCombo.Checked := False;
    cbEMail.Enabled := False;
  end
  else begin
    if rbCombo.Enabled then
    begin
      cbEMail.Enabled := True;
      edtEMail.Enabled := False;
      rbEdit.Checked := False;
    end;
  end;
end;

procedure TfDialogElegirEMail.edtEMailPropertiesValidate(Sender: TObject;
  var DisplayValue: Variant; var ErrorText: TCaption; var Error: Boolean);
begin
  if not VarIsNull(DisplayValue) then
  begin
    Error := not IsValidEmail(DisplayValue);
    ErrorText := 'La dirección de correo electrónica no es válida. Compruebe que está bien escrita.';
  end;
end;

procedure TfDialogElegirEMail.FormCloseQuery(Sender: TObject;
  var CanClose: Boolean);
begin
  inherited;
  if rbEdit.Checked and EsCadenaVacia(edtEMail.Text) then
  begin
    ShowErrorMessage('Elegir dirección de correo electrónico', 'Debe indicar una dirección de correo electrónico.');
    edtEMail.SetFocus;
    CanClose := False;
  end;
end;

procedure TfDialogElegirEMail.FormCreate(Sender: TObject);
begin
  inherited;
  //FListaDirecciones := TStringList.Create; <- La lista se da mediante la propiedad.
end;

procedure TfDialogElegirEMail.FormDestroy(Sender: TObject);
begin
  inherited;
  //FreeAndNIL(FListaDirecciones) <- La lista se da mediante la propiedad.
end;

procedure TfDialogElegirEMail.FormShow(Sender: TObject);
var
  I: Integer;
begin
  inherited;
  cbEMail.Items.Clear;
  cbEMail.Items := FListaDirecciones;

  if cbEMail.Items.Count = 0 then
  begin
    rbCombo.Enabled := False;
    rbEdit.Checked;
  end;

  if cbEMail.Items.Count > 0 then
  begin
    cbEMail.ItemIndex := 0;
    rbCombo.Checked := True;
  end;

  ActualizarOpciones;
end;

function TfDialogElegirEMail.GetEMailElegido: String;
begin
  if rbCombo.Checked then
    Result := cbEMail.Text
  else
    Result := edtEMail.Text;
end;

procedure TfDialogElegirEMail.rbComboClick(Sender: TObject);
begin
  inherited;
  rbEdit.Checked := False;
  ActualizarOpciones;
end;

procedure TfDialogElegirEMail.rbEditClick(Sender: TObject);
begin
  inherited;
  rbEdit.Checked := True;
  ActualizarOpciones;
end;

end.