unit EditorMain;
(*
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 explorer / 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
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;
{.$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;
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);
private
CurSearchTerm: string;
HlpPrevPageIndex: integer;
SrcRep: TSynEditFindReplace;
{$IFDEF OnlineHelp}
gOnlineHelpWord: string;
{$ENDIF}
procedure Help;
function MarkUpLineReference(cont: string): string;
protected
ChmIndex: TMemIniFile;
FScrapFile: string;
procedure GotoLineNo(LineNo:integer);
function GetScrapFile: string;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses
Functions, StrUtils, WebBrowserUtils, FastPHPUtils, Math, ShellAPI, RichEdit;
// 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.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
{$ENDIF}
end;
procedure TForm1.SynEdit1MouseWheelDown(Sender: TObject; Shift: TShiftState;
MousePos: TPoint; var Handled: Boolean);
begin
if ssCtrl in Shift then
begin
SynEdit1.Font.Size := Max(SynEdit1.Font.Size - 1, 5);
Handled := true;
end
else Handled := false;
end;
procedure TForm1.SynEdit1MouseWheelUp(Sender: TObject; Shift: TShiftState;
MousePos: TPoint; var Handled: Boolean);
begin
if ssCtrl in Shift then
begin
SynEdit1.Font.Size := SynEdit1.Font.Size + 1;
Handled := true;
end
else Handled := false;
end;
procedure TForm1.SynEditFocusTimerTimer(Sender: TObject);
begin
SynEditFocusTimer.Enabled := false;
Button1.SetFocus; // Workaround for weird bug... This (and the timer) is necessary to get the focus to SynEdit1
SynEdit1.SetFocus;
end;
procedure TForm1.Timer1Timer(Sender: TObject);
begin
{$IFDEF OnlineHelp}
Timer1.Enabled := false;
// TODO: Insert a small online help hint
//Caption := gOnlineHelpWord;
{$ENDIF}
end;
procedure TForm1.WebBrowser1BeforeNavigate2(ASender: TObject;
const pDisp: IDispatch; const URL, Flags, TargetFrameName, PostData,
Headers: OleVariant; var Cancel: WordBool);
var
s, myURL: string;
lineno: integer;
p: integer;
begin
{$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(GetDosOutput('"'+GetPHPExe+'" "'+myURL+'"', ExtractFileDir(Application.ExeName)), 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;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
if Assigned(ChmIndex) then
begin
FreeAndNil(ChmIndex);
end;
FreeAndNil(SrcRep);
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);
SynEdit1.SetFocus;
end;
function TForm1.GetScrapFile: string;
begin
if FScrapFile <> '' then exit(FScrapFile);
if ParamStr(1) <> '' then
result := ParamStr(1)
else
result := FastPHPConfig.ReadString('Paths', 'ScrapFile', '');
if not FileExists(result) then
begin
repeat
if not OpenDialog3.Execute then
begin
Application.Terminate;
exit('');
end;
if not DirectoryExists(ExtractFilePath(OpenDialog3.FileName)) then
begin
ShowMessage('Path does not exist! Please try again.');
end
else
begin
result := OpenDialog3.FileName;
end;
until result <> '';
SynEdit1.Lines.Clear;
SynEdit1.Lines.SaveToFile(result);
FastPHPConfig.WriteString('Paths', 'ScrapFile', result);
FScrapFile := result;
end;
end;
procedure TForm1.Help;
var
IndexFile, chmFile, w, OriginalWord, 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 CharInSet(w[1], ['0'..'9']) then exit;
Originalword := w;
// w := StringReplace(w, '_', '-', [rfReplaceAll]);
w := LowerCase(w);
CurSearchTerm := w;
internalHtmlFile := ChmIndex.ReadString('_HelpWords_', CurSearchTerm, '');
if internalHtmlFile = '' then
begin
HelpTabsheet.TabVisible := false;
HlpPrevPageIndex := -1;
ShowMessageFmt('No help for "%s" available', [Originalword]);
Exit;
end;
url := 'mk:@MSITStore:'+ChmFile+'::'+internalHtmlFile;
HlpPrevPageIndex := PageControl2.ActivePageIndex; // Return by pressing ESC
HelpTabsheet.TabVisible := true;
PageControl2.ActivePage := HelpTabsheet;
WebBrowser2.Navigate(url);
WebBrowser2.Wait;
end;
procedure TForm1.GotoLineNo(LineNo:integer);
var
line: string;
i: integer;
begin
SynEdit1.GotoLineAndCenter(LineNo);
// Skip indent
line := SynEdit1.Lines[SynEdit1.CaretY];
for i := 1 to Length(line) do
begin
if not CharInSet(line[i], [' ', #9]) then
begin
SynEdit1.CaretX := i-1;
break;
end;
end;
PageControl2.ActivePage := CodeTabsheet;
if SynEdit1.CanFocus then SynEdit1.SetFocus;
end;
procedure TForm1.PageControl2Changing(Sender: TObject;
var AllowChange: Boolean);
begin
if PageControl2.ActivePage = HelpTabsheet then
HlpPrevPageIndex := -1
else
HlpPrevPageIndex := PageControl2.ActivePageIndex;
AllowChange := true;
end;
procedure TForm1.Memo2DblClick(Sender: TObject);
var
line: string;
procedure _process(toFind: string);
var
p, lineno: integer;
begin
if FileSystemCaseSensitive then
p := Pos(toFind, line)
else
p := Pos(toFind.ToLower, line.ToLower);
if p <> 0 then
begin
line := copy(line, p+length(toFind), 99);
if not TryStrToInt(line, lineno) then exit;
GotoLineNo(lineno);
end;
end;
begin
line := memo2.Lines.Strings[Memo2.CaretPos.Y];
{$REGION 'Possibility 1: filename.php:lineno'}
_process(ExtractFileName(GetScrapFile) + ':');
{$ENDREGION}
{$REGION 'Possibility 2: on line xx'}
_process(ExtractFileName(GetScrapFile) + ' on line ');
{$ENDREGION}
end;
procedure TForm1.Memo2KeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if ((ssCtrl in Shift) and (Key = 65)) then TMemo(Sender).SelectAll;
end;
function TForm1.MarkUpLineReference(cont: string): string;
procedure _process(toFind: string);
var
p, a, b: integer;
num: integer;
insert_a, insert_b: string;
begin
if FileSystemCaseSensitive then
p := Pos(toFind, cont)
else
p := Pos(toFind.ToLower, cont.ToLower);
while p >= 1 do
begin
a := p;
b := p + length(toFind);
num := 0;
while CharInSet(cont[b], ['0'..'9']) do
begin
num := num*10 + StrToInt(cont[b]);
inc(b);
end;
insert_b := '</a>';
insert_a := '<a href="' + FASTPHP_GOTO_URI_PREFIX + IntToStr(num) + '">';
insert(insert_b, cont, b);
insert(insert_a, cont, a);
p := b + Length(insert_a) + Length(insert_b);
p := PosEx(toFind, cont, p+1);
end;
end;
begin
{$REGION 'Possibility 1: filename.php:lineno'}
_process(ExtractFileName(GetScrapFile) + ':');
{$ENDREGION}
{$REGION 'Possibility 2: on line xx'}
_process(ExtractFileName(GetScrapFile) + ' on line ');
{$ENDREGION}
result := cont;
end;
end.