Subversion Repositories fastphp

unit Unit1;

(*

  This program requires

  - Microsoft Internet Controls (TWebBrowser)

    If you are using Delphi 10.1 Starter Edition, please import the ActiveX TLB

    "Microsoft Internet Controls"

  - SynEdit

    You can obtain SynEdit via Embarcadero GetIt

*)

// TODO: localize

// TODO: wieso geht copy paste im twebbrowser nicht???

// Wieso dauert webbrowser1 erste kompilierung so lange???

// Future ideas

// - ToDo list

// - Open/Save real files

// - multiple scraps?

// - verschiedene php versionen?

// - webbrowser1 nur laden, wenn man den tab anwählt?

// - doppelklick auf tab soll diesen schließen

// - Strg+S

// - tastenkombo für "springe zu zeile"

// - Onlinehelp aufrufen

interface

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls, OleCtrls, ComCtrls, ExtCtrls, ToolWin, IniFiles,

  SynEditHighlighter, SynHighlighterPHP, SynEdit, SHDocVw_TLB;

type

  TForm1 = class(TForm)

    PageControl1: TPageControl;

    PlaintextTabSheet: TTabSheet;

    HtmlTabSheet: TTabSheet;

    Memo2: TMemo;

    WebBrowser1: TWebBrowser;

    Splitter1: TSplitter;

    PageControl2: TPageControl;

    TabSheet3: TTabSheet;

    HelpTabsheet: TTabSheet;

    WebBrowser2: TWebBrowser;

    OpenDialog1: TOpenDialog;

    Panel1: TPanel;

    OpenDialog2: TOpenDialog;

    OpenDialog3: TOpenDialog;

    SynEdit1: TSynEdit;

    SynPHPSyn1: TSynPHPSyn;

    procedure Run(Sender: TObject);

    procedure FormShow(Sender: TObject);

    procedure Memo1KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);

    procedure FormCreate(Sender: TObject);

    procedure FormDestroy(Sender: TObject);

    procedure FormClose(Sender: TObject; var Action: TCloseAction);

    procedure PageControl2Changing(Sender: TObject; var AllowChange: Boolean);

  private

    CurSearchTerm: string;

    HlpPrevPageIndex: integer;

    procedure Help;

    procedure ApplicationOnMessage(var Msg: tagMSG; var Handled: Boolean);

  protected

    FastPHPConfig: TMemIniFile;

    ChmIndex: TMemIniFile;

    function GetScrapFile: string;

  end;

var

  Form1: TForm1;

implementation

{$R *.dfm}

uses

  Functions;

procedure TForm1.ApplicationOnMessage(var Msg: tagMSG; var Handled: Boolean);

begin                    

  case Msg.message of

    WM_KEYUP:

    begin

      case Msg.wParam of

        VK_ESCAPE:

        begin

          // It is necessary to use Application.OnMessage, because Form1.KeyPreview does not work when TWebBrowser has the focus

          if (HlpPrevPageIndex <> -1) and (PageControl2.ActivePage = HelpTabSheet) and

             (HelpTabsheet.TabVisible) then

          begin

            PageControl2.ActivePageIndex := HlpPrevPageIndex;

            HelpTabsheet.TabVisible := false;

          end;

          Handled := true;

        end;

      end;

    end;

  end;

end;

procedure TForm1.Run(Sender: TObject);

var

  phpExe: string;

begin

  if not FileExists(phpExe) then

  begin

    phpExe := FastPHPConfig.ReadString('Paths', 'PHPInterpreter', '');

    if not FileExists(phpExe) then

    begin

      if not OpenDialog2.Execute then exit;

      if not FileExists(OpenDialog2.FileName) then exit;

      phpExe := OpenDialog2.FileName;

      if not IsValidPHPExe(phpExe) then

      begin

        ShowMessage('This is not a valid PHP executable.');

        exit;

      end;

      FastPHPConfig.WriteString('Paths', 'PHPInterpreter', phpExe);

      FastPHPConfig.UpdateFile;

    end;

  end;

  SynEdit1.Lines.SaveToFile(GetScrapFile);

  memo2.Lines.Text := GetDosOutput('"'+phpExe+'" "'+GetScrapFile+'"', ExtractFileDir(Application.ExeName));

  BrowseContent(Webbrowser1, memo2.Lines.Text);

  if IsTextHTML(memo2.lines.text) then

    PageControl1.ActivePage := HtmlTabSheet

  else

    PageControl1.ActivePage := PlaintextTabSheet;

end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);

begin

  SynEdit1.Lines.SaveToFile(GetScrapFile);

end;

procedure TForm1.FormCreate(Sender: TObject);

begin

  HlpPrevPageIndex := -1;

  CurSearchTerm := '';

  Application.OnMessage := ApplicationOnMessage;

  FastPHPConfig := TMemIniFile.Create(ChangeFileExt(Application.ExeName, '.ini'));

end;

procedure TForm1.FormDestroy(Sender: TObject);

begin

  if Assigned(ChmIndex) then

  begin

    FreeAndNil(ChmIndex);

  end;

  FastPHPConfig.UpdateFile;

  FreeAndNil(FastPHPConfig);

end;

procedure TForm1.FormShow(Sender: TObject);

var

  ScrapFile: string;

begin

  ScrapFile := GetScrapFile;

  if ScrapFile = '' then

  begin

    Close;

    exit;

  end;

  SynEdit1.Lines.LoadFromFile(ScrapFile);

  PageControl1.ActivePage := PlaintextTabSheet;

  PageControl2.ActivePageIndex := 0; // Scraps

  HelpTabsheet.TabVisible := false;

end;

function TForm1.GetScrapFile: string;

begin

  result := FastPHPConfig.ReadString('Paths', 'ScrapFile', '');

  if not FileExists(result) then

  begin

    if not OpenDialog3.Execute then

    begin

      result := '';

      exit;

    end;

    result := OpenDialog3.FileName;

    if not DirectoryExists(ExtractFilePath(result)) then

    begin

      ShowMessage('Path does not exist!');

      result := '';

      exit;

    end;

    SynEdit1.Lines.Clear;

    SynEdit1.Lines.SaveToFile(result);

    FastPHPConfig.WriteString('Paths', 'ScrapFile', result);

  end;

end;

procedure TForm1.Help;

var

  IndexFile, chmFile, w, url: string;

  internalHtmlFile: string;

begin

  if not Assigned(ChmIndex) then

  begin

    IndexFile := FastPHPConfig.ReadString('Paths', 'HelpIndex', '');

    IndexFile := ChangeFileExt(IndexFile, '.ini'); // Just to be sure. Maybe someone wrote manually the ".chm" file in there

    if FileExists(IndexFile) then

    begin

      ChmIndex := TMemIniFile.Create(IndexFile);

    end;

  end;

  if Assigned(ChmIndex) then

  begin

    IndexFile := FastPHPConfig.ReadString('Paths', 'HelpIndex', '');

    // We don't check if IndexFile still exists. It is not important since we have ChmIndex pre-loaded in memory

    chmFile := ChangeFileExt(IndexFile, '.chm');

    if not FileExists(chmFile) then

    begin

      FreeAndNil(ChmIndex);

    end;

  end;

  if not Assigned(ChmIndex) then

  begin

    if not OpenDialog1.Execute then exit;

    chmFile := OpenDialog1.FileName;

    if not FileExists(chmFile) then exit;

    IndexFile := ChangeFileExt(chmFile, '.ini');

    if not FileExists(IndexFile) then

    begin

      Panel1.Align := alClient;

      Panel1.Visible := true;

      Panel1.BringToFront;

      Screen.Cursor := crHourGlass;

      Application.ProcessMessages;

      try

        if not ParseCHM(chmFile) then

        begin

          ShowMessage('The CHM file is not a valid PHP documentation. Cannot use help.');

          exit;

        end;

      finally

        Screen.Cursor := crDefault;

        Panel1.Visible := false;

      end;

      if not FileExists(IndexFile) then

      begin

        ShowMessage('Unknown error. Cannot use help.');

        exit;

      end;

    end;

    FastPHPConfig.WriteString('Paths', 'HelpIndex', IndexFile);

    FastPHPConfig.UpdateFile;

    ChmIndex := TMemIniFile.Create(IndexFile);

  end;

  w := GetWordUnderCaret(SynEdit1);

  if w = '' then exit;

  if w[1] in ['0'..'9'] then exit;  

  w := StringReplace(w, '_', '-', [rfReplaceAll]);

  w := LowerCase(w);

  CurSearchTerm := w;

  internalHtmlFile := ChmIndex.ReadString('_HelpWords_', CurSearchTerm, '');

  if internalHtmlFile = '' then

  begin

    HelpTabsheet.TabVisible := false;

    HlpPrevPageIndex := -1;

    ShowMessage('No help for "'+CurSearchTerm+'" available');

    Exit;

  end;

  url := 'mk:@MSITStore:'+ChmFile+'::'+internalHtmlFile;

  HlpPrevPageIndex := PageControl2.ActivePageIndex; // Return by pressing ESC

  HelpTabsheet.TabVisible := true;

  PageControl2.ActivePage := HelpTabsheet;

  BrowseURL(WebBrowser2, url);

end;

procedure TForm1.Memo1KeyDown(Sender: TObject; var Key: Word;

  Shift: TShiftState);

begin

  if (Key = VK_F9) or (Key = VK_F5) then

    Run(Sender)

  else if Key = VK_F1 then

    Help;

end;

procedure TForm1.PageControl2Changing(Sender: TObject;

  var AllowChange: Boolean);

begin

  if PageControl2.ActivePage = HelpTabsheet then

    HlpPrevPageIndex := -1

  else

    HlpPrevPageIndex := PageControl2.ActivePageIndex;

  AllowChange := true;

end;

end.