Subversion Repositories fastphp

unit EditorMain;

{$Include 'FastPHP.inc'}

(*

  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???

// TODO: wieso kommt syntax fehler zweimal? einmal stderr einmal stdout?

// TODO: Browser titlebar (link preview)

// TODO: todo liste

// Future ideas

// - code insight

// - verschiedene php versionen?

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

// - doppelklick auf tab soll diesen schließen

// - Onlinehelp (www) aufrufen

// - Let all colors be adjustable

// - code in bildschirmmitte (horizontal)?

interface

uses

  // TODO: "{$IFDEF USE_SHDOCVW_TLB}_TLB{$ENDIF}" does not work with Delphi 10.2

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

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

  SynEditHighlighter, SynHighlighterPHP, SynEdit, ShDocVw_TLB, FindReplace,

  System.Actions, Vcl.ActnList, System.UITypes, SynEditMiscClasses,

  SynEditSearch, RunPHP;

{.$DEFINE OnlineHelp}

type

  TForm1 = class(TForm)

    PageControl1: TPageControl;

    PlaintextTabSheet: TTabSheet;

    HtmlTabSheet: TTabSheet;

    Memo2: TMemo;

    WebBrowser1: TWebBrowser;

    Splitter1: TSplitter;

    PageControl2: TPageControl;

    CodeTabsheet: TTabSheet;

    HelpTabsheet: TTabSheet;

    WebBrowser2: TWebBrowser;

    OpenDialog1: TOpenDialog;

    Panel1: TPanel;

    OpenDialog3: TOpenDialog;

    SynEdit1: TSynEdit;

    SynPHPSyn1: TSynPHPSyn;

    Panel2: TPanel;

    SynEditFocusTimer: TTimer;

    Button1: TButton;

    Button2: TButton;

    Button3: TButton;

    Button4: TButton;

    Button5: TButton;

    Button6: TButton;

    ActionList: TActionList;

    ActionFind: TAction;

    ActionReplace: TAction;

    ActionFindNext: TAction;

    ActionGoto: TAction;

    ActionSave: TAction;

    ActionHelp: TAction;

    ActionRun: TAction;

    ActionESC: TAction;

    Button7: TButton;

    ActionOpen: TAction;

    Button8: TButton;

    Button9: TButton;

    ActionFindPrev: TAction;

    Timer1: TTimer;

    ActionSpaceToTab: TAction;

    Button11: TButton;

    SynEditSearch1: TSynEditSearch;

    TreeView1: TTreeView;

    Splitter2: TSplitter;

    procedure Run(Sender: TObject);

    procedure FormShow(Sender: TObject);

    procedure FormCreate(Sender: TObject);

    procedure FormDestroy(Sender: TObject);

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

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

    procedure Memo2DblClick(Sender: TObject);

    procedure WebBrowser1BeforeNavigate2(ASender: TObject;

      const pDisp: IDispatch; const URL, Flags, TargetFrameName, PostData,

      Headers: OleVariant; var Cancel: WordBool);

    procedure SynEditFocusTimerTimer(Sender: TObject);

    procedure ActionFindExecute(Sender: TObject);

    procedure ActionReplaceExecute(Sender: TObject);

    procedure ActionFindNextExecute(Sender: TObject);

    procedure ActionGotoExecute(Sender: TObject);

    procedure ActionSaveExecute(Sender: TObject);

    procedure ActionHelpExecute(Sender: TObject);

    procedure ActionRunExecute(Sender: TObject);

    procedure ActionESCExecute(Sender: TObject);

    procedure SynEdit1MouseWheelDown(Sender: TObject; Shift: TShiftState;

      MousePos: TPoint; var Handled: Boolean);

    procedure SynEdit1MouseWheelUp(Sender: TObject; Shift: TShiftState;

      MousePos: TPoint; var Handled: Boolean);

    procedure ActionOpenExecute(Sender: TObject);

    procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);

    procedure Memo2KeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);

    procedure ActionFindPrevExecute(Sender: TObject);

    procedure SynEdit1MouseCursor(Sender: TObject;

      const aLineCharPos: TBufferCoord; var aCursor: TCursor);

    procedure Timer1Timer(Sender: TObject);

    procedure ActionSpaceToTabExecute(Sender: TObject);

    procedure TreeView1DblClick(Sender: TObject);

    procedure SynEdit1GutterClick(Sender: TObject; Button: TMouseButton; X, Y,

      Line: Integer; Mark: TSynEditMark);

    procedure SynEdit1PaintTransient(Sender: TObject; Canvas: TCanvas;

      TransientType: TTransientType);

  private

    CurSearchTerm: string;

    HlpPrevPageIndex: integer;

    SrcRep: TSynEditFindReplace;

    {$IFDEF OnlineHelp}

    gOnlineHelpWord: string;

    {$ENDIF}

    procedure Help;

    function MarkUpLineReference(cont: string): string;

    function InputRequestCallback: AnsiString;

    procedure OutputNotifyCallback(const data: AnsiString);

  protected

    ChmIndex: TMemIniFile;

    FScrapFile: string;

    codeExplorer: TRunCodeExplorer;

    procedure GotoLineNo(LineNo: integer);

    function GetScrapFile: string;

    procedure StartCodeExplorer;

  end;

var

  Form1: TForm1;

implementation

{$R *.dfm}

{$R Cursors.res}

uses

  Functions, StrUtils, WebBrowserUtils, FastPHPUtils, Math, ShellAPI, RichEdit,

  FastPHPTreeView;

const

  crMouseGutter = 1;

// TODO: FindPrev ?

procedure TForm1.ActionFindNextExecute(Sender: TObject);

begin

  SrcRep.FindNext;

end;

procedure TForm1.ActionFindPrevExecute(Sender: TObject);

begin

  SrcRep.FindPrev;

end;

procedure TForm1.ActionGotoExecute(Sender: TObject);

var

  val: string;

  lineno: integer;

begin

  // TODO: VK_LMENU does not work! only works with AltGr but not Alt

  // http://stackoverflow.com/questions/16828250/delphi-xe2-how-to-prevent-the-alt-key-stealing-focus ?

  InputQuery('Go to', 'Line number:', val);

  if not TryStrToInt(val, lineno) then

  begin

    if SynEdit1.CanFocus then SynEdit1.SetFocus;

    exit;

  end;

  GotoLineNo(lineno);

end;

procedure TForm1.ActionHelpExecute(Sender: TObject);

begin

  Help;

  if PageControl2.ActivePage = HelpTabsheet then

    WebBrowser2.SetFocus

  else if PageControl2.ActivePage = CodeTabsheet then

    SynEdit1.SetFocus;

end;

procedure TForm1.ActionOpenExecute(Sender: TObject);

begin

  If OpenDialog3.Execute then

  begin

    ShellExecute(0, 'open', PChar(ParamStr(0)), PChar(OpenDialog3.FileName), '', SW_NORMAL);

  end;

end;

procedure TForm1.ActionReplaceExecute(Sender: TObject);

begin

  SrcRep.ReplaceExecute;

end;

procedure TForm1.ActionRunExecute(Sender: TObject);

begin

  Run(Sender);

  SynEdit1.SetFocus;

end;

procedure TForm1.ActionSaveExecute(Sender: TObject);

begin

  SynEdit1.Lines.SaveToFile(GetScrapFile);

  SynEdit1.Modified := false;

end;

procedure TForm1.ActionSpaceToTabExecute(Sender: TObject);

    function SpacesAtBeginning(line: string): integer;

    begin

      if line.Trim = '' then exit(0);

      result := 0;

      while line[result+1] = ' ' do

      begin

        inc(result);

      end;

    end;

    function GuessIndent(lines: TStrings): integer;

      function _Check(indent: integer): boolean;

      var

        i: integer;

      begin

        result := true;

        for i := 0 to lines.Count-1 do

          if SpacesAtBeginning(lines.Strings[i]) mod indent <> 0 then

          begin

            // ShowMessageFmt('Zeile "%s" nicht durch %d teilbar!', [lines.strings[i], indent]);

            exit(false);

          end;

      end;

    var

      i: integer;

    begin

      for i := 8 downto 2 do

      begin

        if _Check(i) then exit(i);

      end;

      result := -1;

    end;

    procedure SpaceToTab(lines: TStrings; indent: integer);

    var

      i, spaces: integer;

    begin

      for i := 0 to lines.Count-1 do

      begin

        spaces := SpacesAtBeginning(lines.Strings[i]);

        lines.Strings[i] := StringOfChar(#9, spaces div indent) + StringOfChar(' ', spaces mod indent) + Copy(lines.Strings[i], spaces+1, Length(lines.Strings[i])-spaces);

      end;

    end;

    function SpacesAvailable(lines: TStrings): boolean;

    var

      i, spaces: integer;

    begin

      for i := 0 to lines.Count-1 do

      begin

        spaces := SpacesAtBeginning(lines.Strings[i]);

        if spaces > 0 then exit(true);

      end;

      exit(false);

    end;

var

  val: string;

  ind: integer;

resourcestring

  SNoLinesAvailable = 'No lines with spaces at the beginning available';

begin

  // TODO: if something is selected, only process the selected part

  if not SpacesAvailable(SynEdit1.Lines) then

  begin

    ShowMessage(SNoLinesAvailable);

    exit;

  end;

  ind := GuessIndent(SynEdit1.Lines);

  if ind <> -1 then val := IntToStr(ind);

  InputQuery('Spaces to tabs', 'Indent:', val); // TODO: handle CANCEL correctly...

  if TryStrToInt(val.Trim, ind) then

  begin

    if ind = 0 then exit;

    SpaceToTab(SynEdit1.Lines, ind);

  end;

  if SynEdit1.CanFocus then SynEdit1.SetFocus;

end;

procedure TForm1.ActionESCExecute(Sender: TObject);

begin

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

     (HelpTabsheet.TabVisible) then

  begin

    PageControl2.ActivePageIndex := HlpPrevPageIndex;

    HelpTabsheet.TabVisible := false;

  end;

  // Dirty hack...

  SrcRep.CloseDialogs;

end;

procedure TForm1.ActionFindExecute(Sender: TObject);

begin

  SrcRep.FindExecute;

end;

var

  firstTimeBrowserLoad: boolean = true;

procedure TForm1.Run(Sender: TObject);

var

  bakTS: TTabSheet;

begin

  memo2.Lines.Text := '';

  if firstTimeBrowserLoad then

  begin

    bakTS := PageControl1.ActivePage;

    try

      PageControl1.ActivePage := HtmlTabSheet; // Required for the first time, otherwise, WebBrowser1.Clear will hang

      Webbrowser1.Clear;

    finally

      PageControl1.ActivePage := bakTS;

    end;

    firstTimeBrowserLoad := false;

  end

  else

    Webbrowser1.Clear;

  Screen.Cursor := crHourGlass;

  Application.ProcessMessages;

  try

    SynEdit1.Lines.SaveToFile(GetScrapFile);

    memo2.Lines.Text := RunPHPScript(GetScrapFile);

    Webbrowser1.LoadHTML(MarkUpLineReference(memo2.Lines.Text), GetScrapFile);

    if IsTextHTML(memo2.lines.text) then

      PageControl1.ActivePage := HtmlTabSheet

    else

      PageControl1.ActivePage := PlaintextTabSheet;

  finally

    Screen.Cursor := crDefault;

  end;

end;

procedure TForm1.SynEdit1GutterClick(Sender: TObject; Button: TMouseButton; X,

  Y, Line: Integer; Mark: TSynEditMark);

begin

  (*

  TSynEdit(Sender).CaretX := 1;

  TSynEdit(Sender).CaretY := Line;

  TSynEdit(Sender).SelLength := Length(TSynEdit(Sender).LineText);

  *)

end;

procedure TForm1.SynEdit1MouseCursor(Sender: TObject; const aLineCharPos: TBufferCoord; var aCursor: TCursor);

{$IFDEF OnlineHelp}

var

  Line: Integer;

  Column: Integer;

  word: string;

begin

  Line  := aLineCharPos.Line-1;

  Column := aLineCharPos.Char-1;

  word := GetWordUnderPos(TSynEdit(Sender), Line, Column);

  if word <> gOnlineHelpWord then

  begin

    gOnlineHelpWord := word;

    Timer1.Enabled := false;

    Timer1.Enabled := true;

  end;

{$ELSE}

begin

{$ENDIF}

end;

procedure TForm1.SynEdit1MouseWheelDown(Sender: TObject; Shift: TShiftState;

  MousePos: TPoint; var Handled: Boolean);

begin

  if ssCtrl in Shift then

  begin

    SynEdit1.Font.Size := Max(SynEdit1.Font.Size - 1, 5);

    Handled := true;

  end

  else Handled := false;

end;

procedure TForm1.SynEdit1MouseWheelUp(Sender: TObject; Shift: TShiftState;

  MousePos: TPoint; var Handled: Boolean);

begin

  if ssCtrl in Shift then

  begin

    SynEdit1.Font.Size := SynEdit1.Font.Size + 1;

    Handled := true;

  end

  else Handled := false;

end;

procedure TForm1.SynEdit1PaintTransient(Sender: TObject; Canvas: TCanvas; TransientType: TTransientType);

var

  Editor: TSynEdit;

  OpenChars: array of WideChar;//[0..2] of WideChar=();

  CloseChars: array of WideChar;//[0..2] of WideChar=();

  function IsCharBracket(AChar: WideChar): Boolean;

  begin

    case AChar of

      '{','[','(','<','}',']',')','>':

        Result := True;

      else

        Result := False;

    end;

  end;

  function CharToPixels(P: TBufferCoord): TPoint;

  begin

    Result := Editor.RowColumnToPixels(Editor.BufferToDisplayPos(P));

  end;

const

  COLOR_FG = clRed;

  COLOR_BG = clInfoBk;

var

  P: TBufferCoord;

  Pix: TPoint;

  D: TDisplayCoord;

  S: UnicodeString;

  I: Integer;

  Attri: TSynHighlighterAttributes;

  ArrayLength: Integer;

  start: Integer;

  TmpCharA, TmpCharB: WideChar;

begin

  // Source: https://github.com/SynEdit/SynEdit/blob/master/Demos/OnPaintTransientDemo/Unit1.pas

  if TSynEdit(Sender).SelAvail then exit;

  Editor := TSynEdit(Sender);

  ArrayLength:= 3;

  (*

  if (Editor.Highlighter = shHTML) or (Editor.Highlighter = shXML) then

    inc(ArrayLength);

  *)

  SetLength(OpenChars, ArrayLength);

  SetLength(CloseChars, ArrayLength);

  for i := 0 to ArrayLength - 1 do

  begin

    case i of

      0: begin OpenChars[i] := '('; CloseChars[i] := ')'; end;

      1: begin OpenChars[i] := '{'; CloseChars[i] := '}'; end;

      2: begin OpenChars[i] := '['; CloseChars[i] := ']'; end;

      3: begin OpenChars[i] := '<'; CloseChars[i] := '>'; end;

    end;

  end;

  P := Editor.CaretXY;

  D := Editor.DisplayXY;

  Start := Editor.SelStart;

  if (Start > 0) and (Start <= length(Editor.Text)) then

    TmpCharA := Editor.Text[Start]

  else

    TmpCharA := #0;

  if (Start < length(Editor.Text)) then

    TmpCharB := Editor.Text[Start + 1]

  else

    TmpCharB := #0;

  if not IsCharBracket(TmpCharA) and not IsCharBracket(TmpCharB) then exit;

  S := TmpCharB;

  if not IsCharBracket(TmpCharB) then

  begin

    P.Char := P.Char - 1;

    S := TmpCharA;

  end;

  Editor.GetHighlighterAttriAtRowCol(P, S, Attri);

  if (Editor.Highlighter.SymbolAttribute = Attri) then

  begin

    for i := low(OpenChars) to High(OpenChars) do

    begin

      if (S = OpenChars[i]) or (S = CloseChars[i]) then

      begin

        Pix := CharToPixels(P);

        Editor.Canvas.Brush.Style := bsSolid;//Clear;

        Editor.Canvas.Font.Assign(Editor.Font);

        Editor.Canvas.Font.Style := Attri.Style;

        if (TransientType = ttAfter) then

        begin

          Editor.Canvas.Font.Color := COLOR_FG;

          Editor.Canvas.Brush.Color := COLOR_BG;

        end

        else

        begin

          Editor.Canvas.Font.Color := Attri.Foreground;

          Editor.Canvas.Brush.Color := Attri.Background;

        end;

        if Editor.Canvas.Font.Color = clNone then

          Editor.Canvas.Font.Color := Editor.Font.Color;

        if Editor.Canvas.Brush.Color = clNone then

          Editor.Canvas.Brush.Color := Editor.Color;

        Editor.Canvas.TextOut(Pix.X, Pix.Y, S);

        P := Editor.GetMatchingBracketEx(P);

        if (P.Char > 0) and (P.Line > 0) then

        begin

          Pix := CharToPixels(P);

          if Pix.X > Editor.Gutter.Width then

          begin

            {$REGION 'Added by ViaThinkSoft'}

            if (TransientType = ttAfter) then

            begin

              Editor.Canvas.Font.Color := COLOR_FG;

              Editor.Canvas.Brush.Color := COLOR_BG;

            end

            else

            begin

              Editor.Canvas.Font.Color := Attri.Foreground;

              Editor.Canvas.Brush.Color := Attri.Background;

            end;

            if Editor.Canvas.Font.Color = clNone then

              Editor.Canvas.Font.Color := Editor.Font.Color;

            if Editor.Canvas.Brush.Color = clNone then

              Editor.Canvas.Brush.Color := Editor.Color;

            {$ENDREGION}

            if S = OpenChars[i] then

              Editor.Canvas.TextOut(Pix.X, Pix.Y, CloseChars[i])

            else Editor.Canvas.TextOut(Pix.X, Pix.Y, OpenChars[i]);

          end;

        end;

      end;

    end;

    Editor.Canvas.Brush.Style := bsSolid;

  end;

end;

procedure TForm1.SynEditFocusTimerTimer(Sender: TObject);

begin

  SynEditFocusTimer.Enabled := false;

  Button1.SetFocus; // Workaround for weird bug... This (and the timer) is necessary to get the focus to SynEdit1

  SynEdit1.SetFocus;

end;

procedure TForm1.Timer1Timer(Sender: TObject);

begin

  {$IFDEF OnlineHelp}

  Timer1.Enabled := false;

  // TODO: Insert a small online help hint

  //Caption := gOnlineHelpWord;

  {$ENDIF}

end;

procedure TForm1.TreeView1DblClick(Sender: TObject);

var

  tn: TTreeNode;

  lineNo: integer;

begin

  tn := TTreeView(Sender).Selected;

  if tn = nil then exit;

  lineNo := Integer(tn.Data);

  if lineNo > 0 then GotoLineNo(lineNo);

end;

procedure TForm1.WebBrowser1BeforeNavigate2(ASender: TObject;

  const pDisp: IDispatch; const URL, Flags, TargetFrameName, PostData,

  Headers: OleVariant; var Cancel: WordBool);

var

  s, myURL: string;

  lineno: integer;

  p: integer;

begin

  {$REGION 'Line number references (PHP errors and warnings)'}

  if Copy(URL, 1, length(FASTPHP_GOTO_URI_PREFIX)) = FASTPHP_GOTO_URI_PREFIX then

  begin

    try

      s := copy(URL, length(FASTPHP_GOTO_URI_PREFIX)+1, 99);

      if not TryStrToInt(s, lineno) then exit;

      GotoLineNo(lineno);

      SynEditFocusTimer.Enabled := true;

    finally

      Cancel := true;

    end;

    Exit;

  end;

  {$ENDREGION}

  {$REGION 'Intelligent browser (executes PHP scripts)'}

  if URL <> 'about:blank' then

  begin

    myUrl := URL;

    p := Pos('?', myUrl);

    if p >= 1 then myURL := copy(myURL, 1, p-1);

    // TODO: myURL urldecode

    // TODO: maybe we could even open that file in the editor!

    if FileExists(myURL) and (EndsText('.php', myURL) or EndsText('.php3', myURL) or EndsText('.php4', myURL) or EndsText('.php5', myURL) or EndsText('.phps', myURL)) then

    begin

      WebBrowser1.LoadHTML(RunPHPScript(myURL), myUrl);

      Cancel := true;

    end;

  end;

  {$ENDREGION}

end;

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

begin

  FastPHPConfig.WriteInteger('User', 'FontSize', SynEdit1.Font.Size);

end;

procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);

var

  r: integer;

begin

  if SynEdit1.Modified then

  begin

    if ParamStr(1) <> '' then

    begin

      r := MessageDlg('Do you want to save?', mtConfirmation, mbYesNoCancel, 0);

      if r = mrCancel then

      begin

        CanClose := false;

        Exit;

      end

      else if r = mrYes then

      begin

        SynEdit1.Lines.SaveToFile(GetScrapFile);

        CanClose := true;

      end;

    end

    else

    begin

      SynEdit1.Lines.SaveToFile(GetScrapFile);

      CanClose := true;

    end;

  end;

end;

procedure TForm1.FormCreate(Sender: TObject);

begin

  HlpPrevPageIndex := -1;

  CurSearchTerm := '';

  Caption := Caption + ' - ' + GetScrapFile;

  SrcRep := TSynEditFindReplace.Create(self);

  SrcRep.Editor := SynEdit1;

  SynEdit1.Gutter.Gradient := HighColorWindows;

  Screen.Cursors[crMouseGutter] := LoadCursor(hInstance, 'MOUSEGUTTER');

  SynEdit1.Gutter.Cursor := crMouseGutter;

end;

procedure TForm1.FormDestroy(Sender: TObject);

begin

  if Assigned(ChmIndex) then

  begin

    FreeAndNil(ChmIndex);

  end;

  FreeAndNil(SrcRep);

  if Assigned(codeExplorer) then

  begin

    codeExplorer.Terminate;

    codeExplorer.WaitFor;

    FreeAndNil(codeExplorer);

  end;

end;

procedure TForm1.FormShow(Sender: TObject);

var

  ScrapFile: string;

begin

  ScrapFile := GetScrapFile;

  if ScrapFile = '' then

  begin

    Application.Terminate; // Close;

    exit;

  end;

  if FileExists(ScrapFile) then

    SynEdit1.Lines.LoadFromFile(ScrapFile)

  else

    SynEdit1.Lines.Clear;

  PageControl1.ActivePage := PlaintextTabSheet;

  PageControl2.ActivePage := CodeTabsheet;

  HelpTabsheet.TabVisible := false;

  SynEdit1.Font.Size := FastPHPConfig.ReadInteger('User', 'FontSize', SynEdit1.Font.Size);