unit MainFormFooter;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, InterfaceAppCentre, cefvcl, AppsLayout, AppBtn,
  pngimage, jpeg;

type
  TMainFrmFooter = class(TForm, IHotAppView)
    pnlFooter: TPanel;
    chrm1: TChromium;
    imgAppCentre: TImage;
    procedure FormCreate(Sender: TObject);
    procedure imgAppCentreClick(Sender: TObject);
    procedure pnlFooterResize(Sender: TObject);
    procedure imgAppCentreMouseEnter(Sender: TObject);
    procedure imgAppCentreMouseLeave(Sender: TObject);
  private
    FAppsLayout: TAppsLayout;
    FDotPic: TGraphic;

    function CreateAppBtn(AHotApp: IHotApp): TAppBtn;
    procedure SSO(Sender: TObject);
  public
    destructor Destroy; override;
    function AddHotApp(AHotApp: IHotApp): Boolean; stdcall;
    function RemoveHotApp(AHotApp: IHotApp): Boolean; stdcall;
    procedure OnASyncAppIconDownloaded(AAppKey: AnsiString; const ABuffer; const ACount: Integer); stdcall;
    procedure InitHotApps;
    procedure DestroyHotApps;
  end;

var
  MainFrmFooter: TMainFrmFooter;

{$I LXTalk.inc}

implementation

uses
  AppCentreImport, MainFormContrller, DataProviderImport, InterfaceDataProvider,
  LoggerImport, MainFrm;

const
  DOT_PNG: string = '\Images\Dot.png';
  DEFAULT_PNG: string = '\Images\DefaultApp.png';
  APPCENTRE_PNG: string = '\Images\appCentre.png';

{$R *.dfm}

function TMainFrmFooter.AddHotApp(AHotApp: IHotApp): Boolean;
var
  AAppBtn: TAppBtn;
begin
  AAppBtn := CreateAppBtn(AHotApp);
  FAppsLayout.AddAppBtn(AAppBtn);
  FAppsLayout.Layout;
end;

function TMainFrmFooter.CreateAppBtn(AHotApp: IHotApp): TAppBtn;
var
  AStream: TMemoryStream;
  pngObj: TPNGObject;
  ABuffer: TBytes;
  img: TImage;
begin
  Result := TAppBtn.Create(pnlFooter);
  with Result do
  begin
    Parent := pnlFooter;
    BtnStyle := absSmall;
    AppModel := AHotApp;
    DotPicture.Assign(FDotPic);
    Caption := (AHotApp.GetUserApp.GetTitle);
    ShowHint := True;
  end;
  Result.OnClick := SSO;
  DataProviderImport.GetAppIconProvider.FindIcon(AHotApp.GetUserApp.GetAppKey, ABuffer);
  if Length(ABuffer) = 0 then
    Result.AppIcon.LoadFromFile(ExtractFilePath(ParamStr(0)) + DEFAULT_PNG)
  else
  begin
    Debug('获取到ICON'+AHotApp.GetUserApp.GetAppKey, 'TMainFrmFooter.CreateAppBtn');
    try
      AStream := TMemoryStream.Create;
      AStream.Write(ABuffer[0], Length(ABuffer));
      img := TImage.Create(nil);
      pngObj := TPNGObject.Create;
      AStream.Position := 0;
      pngObj.LoadFromStream(AStream);
      Result.AppIcon.Assign(pngObj);
    except
      on E: Exception do
      begin
        Error(AHotApp.GetUserApp.GetTitle + '的图标不是有效的png图片', 'TMainFrmFooter.CreateAppBtn');
        Result.AppIcon.LoadFromFile(ExtractFilePath(ParamStr(0)) + DEFAULT_PNG);
        FreeAndNil(pngObj);
        FreeAndNil(AStream);
      end;
    end;
    FreeAndNil(pngObj);
    FreeAndNil(AStream);
  end;
end;

destructor TMainFrmFooter.Destroy;
var
  AAppBtn: TAppBtn;
begin
  while FAppsLayout.Apps.Count > 0 do
  begin
    AAppBtn := FAppsLayout.Apps.Objects[0] as TAppBtn;
    FAppsLayout.Apps.Delete(0);
    FreeAndNil(AAppBtn);
  end;
  
  FreeAndNil(FAppsLayout);
  FreeAndNil(FDotPic);
  inherited;
end;

procedure TMainFrmFooter.FormCreate(Sender: TObject);
begin
  FAppsLayout := TAppsLayout.Create;
  FAppsLayout.Col := 7;
  FAppsLayout.Row := 1;
  FAppsLayout.ClientRect := Rect(57, 0, 245, 30);
  FDotPic := TPNGObject.Create;
  FDotPic.LoadFromFile(ExtractFilePath(ParamStr(0)) + DOT_PNG);
  imgAppCentre.Picture.LoadFromFile(ExtractFilePath(ParamStr(0)) + APPCENTRE_PNG);

  {$IFDEF NXQST}
  imgAppCentre.Hint := '纳税之家';
  {$ENDIF}
end;

procedure TMainFrmFooter.imgAppCentreClick(Sender: TObject);
var
  AURL: string;
begin
  if GetAppCentreConfig.GetShowType = stOnMainform then
  begin
    if not Mainform.pnlMiddleRight.Visible then
    begin
      if Mainform.RealICQClient.Logined
        and Mainform.RealICQClient.Connected then
      begin
        Mainform.ShowOrHideMuiltiWeb;
        AURL := string(GetAppCentre.GetAppCentreURL);
        MainForm.chrmAppCentre.Load(AURL);
      end;
    end
    else
      Mainform.ShowOrHideMuiltiWeb;
  end
  else
  begin
    GetAppCentre.OpenAppCentreFrom;
//    GetAppCentre.OpenWebDebuggerTool;
  end;
end;

procedure TMainFrmFooter.imgAppCentreMouseEnter(Sender: TObject);
begin
  imgAppCentre.ShowHint := True;
end;

procedure TMainFrmFooter.imgAppCentreMouseLeave(Sender: TObject);
begin
  imgAppCentre.ShowHint := False;
end;

procedure TMainFrmFooter.InitHotApps;
var
  AAppBtn: TAppBtn;
  AList: IInterfaceList;
  iLoop: Integer;
  tmp: Integer;
begin
  AList := GetAppCentre.GetHotApps;
  if AList = nil then
    Exit;
  for iLoop := 0 to AList.Count - 1 do
  begin
    AAppBtn := CreateAppBtn((AList[iLoop] as IHotApp));
    FAppsLayout.AddAppBtn(AAppBtn);
  end;
  FAppsLayout.Layout;

//  tmp := (pnlFooter.Height - imgAppCentre.Height) div 2;
//  imgAppCentre.Top := tmp;
//  imgAppCentre.Left := pnlFooter.Width - imgAppCentre.Width - tmp;
end;

procedure TMainFrmFooter.DestroyHotApps;
var
  AAppBtn: TAppBtn;
  AList: TStringList;
  iLoop: Integer;
begin
  AList := FAppsLayout.Apps;
  if AList = nil then
    Exit;
  while AList.Count > 0 do
  begin
    AAppBtn := AList.Objects[0] as TAppBtn;
    AList.Delete(0);
    FreeAndNil(AAppBtn);
  end;
  FAppsLayout.Layout;
end;

procedure TMainFrmFooter.OnASyncAppIconDownloaded(AAppKey: AnsiString;
  const ABuffer; const ACount: Integer);
var
  iLoop: Integer;
  AAppBtn: TAppBtn;
  AHotApp: IHotApp;
  pngObj: TPNGObject;
  AStream: TStream;
begin
  for iLoop := 0 to FAppsLayout.Apps.Count - 1 do
  begin
    AAppBtn := FAppsLayout.Apps.Objects[iLoop] as TAppBtn;
    AHotApp := AAppBtn.AppModel as IHotApp;
    if SameText(AHotApp.GetUserApp.GetAppKey, AAppKey) then
    begin
      AStream := TMemoryStream.Create;
      try
        pngObj := TPNGObject.Create;
        AStream.Position := 0;
        AStream.Write(TBytes(ABuffer)[0], ACount);
        AStream.Position := 0;
        pngObj.LoadFromStream(AStream);
        AAppBtn.AppIcon.Assign(pngObj);
        AAppBtn.Invalidate;
        FreeAndNil(pngObj);
      finally
        AStream.Free;
      end;
      Exit;
    end;
  end;
end;

procedure TMainFrmFooter.pnlFooterResize(Sender: TObject);
var
  tmp: Integer;
begin
  tmp := ((Sender as TControl).Height - imgAppCentre.Height) div 2;
  imgAppCentre.Top := tmp;
  imgAppCentre.Left := (Sender as TControl).Width - imgAppCentre.Width - tmp;
end;

function TMainFrmFooter.RemoveHotApp(AHotApp: IHotApp): Boolean;
var
  iLoop: Integer;
  AAppBtn: TAppBtn;
  AOldHotApp: IHotApp;
begin
  for iLoop := 0 to FAppsLayout.Apps.Count - 1 do
  begin
    AAppBtn := FAppsLayout.Apps.Objects[iLoop] as TAppBtn;
    AOldHotApp := AAppBtn.AppModel as IHotApp;
    if SameText(AOldHotApp.GetUserApp.GetAppKey, AHotApp.GetUserApp.GetAppKey) then
    begin
      FAppsLayout.RemoveAppBtn(AAppBtn);
      FreeAndNil(AAppBtn);
      Exit;
    end;
  end;      
end;

procedure TMainFrmFooter.SSO(Sender: TObject);
var
  AHotApp: IHotApp;
begin
  if (Sender = nil) or not (Sender is TAppBtn) then
    Exit;
  
  AHotApp := (Sender as TAppBtn).AppModel as IHotApp;
  GetAppCentre.SSO(AHotApp.GetUserApp.GetAppKey);
end;

initialization

finalization
  if MainFrmFooter <> nil then
    FreeAndNil(MainFrmFooter);

end.