BrowserRecord.pas

   1 unit BrowserRecord;
   2
   3 interface
   4
   5 uses
   6         Windows, OleCtrls, ActiveX,
   7 {$IF Defined(DELPRO) }
   8         SHDocVw,
   9         MSHTML,
  10 {$ELSE}
  11         SHDocVw_TLB,
  12         MSHTML_TLB,
  13 {$IFEND}
  14         BoardGroup, HTMLDocumentEvent;
  15
  16 type
  17         TBrowserRecord = class( TObject )
  18         private
  19                 FBrowser        : TWebBrowser;
  20                 FEvent: THTMLDocumentEventSink; ///< \83u\83\89\83E\83U\83h\83L\83\85\83\81\83\93\83g\83C\83x\83\93\83g
  21                 FThread         : TThreadItem;
  22                 FLastSize       : Integer;
  23                 FRepaint        : Boolean;
  24                 //FMovement     : string;                                                       ///< \83X\83N\83\8d\81[\83\8b\90æ\83A\83\93\83J\81[
  25         public
  26                 destructor      Destroy; override;
  27                 property        Event : THTMLDocumentEventSink read FEvent write FEvent;
  28                 property        Browser : TWebBrowser   read FBrowser   write FBrowser;
  29                 property        Thread  : TThreadItem   read FThread    write FThread;
  30                 property        LastSize        : Integer               read FLastSize  write FLastSize;
  31                 property        Repaint         : Boolean               read FRepaint   write FRepaint;
  32                 //property      Movement        : string                read FMovement  write FMovement;
  33                 procedure       Move(const AName: string); overload;
  34         procedure       Move(scroll: Integer); overload;
  35                 procedure       IDAnchorPopup(Abody :string);
  36         procedure OpenFindDialog;
  37         end;
  38         // BrowserRecord\82É\82Â\82¢\82Ä\82¢\82éFBrowser\82ð\8aO\82·
  39         procedure ReleaseBrowser( BRecord: TBrowserRecord);
  40
  41 implementation
  42
  43 uses
  44         Forms, SysUtils;
  45
  46 // *************************************************************************
  47 //! BrowserRecord\82É\82Â\82¢\82Ä\82¢\82éFBrowser\82ð\8aO\82·
  48 // *************************************************************************
  49 procedure ReleaseBrowser( BRecord: TBrowserRecord);
  50 begin
  51         if BRecord <> nil then begin
  52                 BRecord.Browser := nil;
  53                 if BRecord.Event <> nil then begin
  54                         BRecord.Event.Free;
  55                         BRecord.Event := nil;
  56                 end;
  57                 BRecord.Repaint := true;
  58         end;
  59 end;
  60 // *************************************************************************
  61 //! BrowserRecord\82Ì\83f\83X\83g\83\89\83N\83^
  62 // *************************************************************************
  63 destructor      TBrowserRecord.Destroy;
  64 var
  65         doc :OleVariant;
  66 begin
  67         if Self.FEvent <> nil then
  68                 Self.FEvent.Free;
  69         if Self.FBrowser <> nil then begin
  70                 if Self.Thread <> nil then begin
  71                         //\83^\83u\82Ì\95\9c\8c³\82Å\95\9c\8c³\82³\82ê\82½\83X\83\8c\82Í\81A\95`\89æ\82³\82ê\82Ä\82¢\82È\82¢\82Æ\82«\82ª\82 \82é\82Ì\82Å
  72                         //\82»\82Ì\82Æ\82«\82Ì\83X\83N\83\8d\81[\83\8b\97Ê\82ð\95Û\91¶\82µ\82Ä\82µ\82Ü\82¤\82Æ\83g\83b\83v\82É\96ß\82Á\82Ä\82µ\82Ü\82¤\81B
  73                         if Self.FBrowser.OleObject.Document.documentElement.innerText <> '' then begin
  74                                 doc := Idispatch( olevariant(Self.FBrowser.ControlInterface).Document) as IHTMLDocument2;
  75                                 Self.Thread.ScrollTop := doc.Body.ScrollTop;
  76                         end;
  77                 end;
  78                 ShowWindow(Self.FBrowser.Handle, SW_HIDE);
  79         end;
  80
  81 end;
  82 // *************************************************************************
  83 //! \83u\83\89\83E\83U\82ð\83X\83N\83\8d\81[\83\8b\82³\82¹\82é
  84 // *************************************************************************
  85 procedure TBrowserRecord.Move(const AName: string);
  86 var
  87         top: Integer;
  88         item: OleVariant;
  89 begin
  90         //\83u\83\89\83E\83U\82ª\95t\82¢\82Ä\82é\82Æ\82«\82¾\82¯\8f\88\97\9d\82·\82é
  91         if (Self.Browser <> nil) then begin
  92                 //\83u\83\89\83E\83U\82ª\83f\81[\83^\82Ì\93Ç\82Ý\8d\9e\82Ý\92\86\82Ì\8e\9e\82Í\93Ç\82Ý\8d\9e\82Ý\82ð\91Ò\82Â
  93                 while (Self.Browser.ReadyState <> READYSTATE_COMPLETE) and
  94                                         (Self.Browser.ReadyState <> READYSTATE_INTERACTIVE) do begin
  95                         Sleep(1);
  96                         Application.ProcessMessages;
  97                 end;
  98
  99                 try
 100                         top := 0;
 101                         item := OleVariant( Self.Browser.Document as IHTMLDocument2)
 102                                         .anchors.item(OleVariant(AName));
 103                         item.focus();
 104                         repeat
 105                                 top := top + item.offsetTop;
 106                                 item := item.offsetParent;
 107                         until AnsiCompareText(item.tagName, 'body' ) = 0;
 108                         OleVariant(Self.Browser.Document as IHTMLDocument2).body.scrollTop := top;
 109                 except
 110                 end;
 111         end;
 112 end;
 113 // *************************************************************************
 114 //! \83u\83\89\83E\83U\82ð\83X\83N\83\8d\81[\83\8b\82³\82¹\82é
 115 // *************************************************************************
 116 procedure TBrowserRecord.Move(scroll: Integer);
 117 var
 118         top: Integer;
 119         item: OleVariant;
 120 begin
 121         //\83u\83\89\83E\83U\82ª\95t\82¢\82Ä\82é\82Æ\82«\82¾\82¯\8f\88\97\9d\82·\82é
 122         if (Self.Browser <> nil) then begin
 123                 //\83u\83\89\83E\83U\82ª\83f\81[\83^\82Ì\93Ç\82Ý\8d\9e\82Ý\92\86\82Ì\8e\9e\82Í\93Ç\82Ý\8d\9e\82Ý\82ð\91Ò\82Â
 124                 while (Self.Browser.ReadyState <> READYSTATE_COMPLETE) and
 125                                         (Self.Browser.ReadyState <> READYSTATE_INTERACTIVE) do begin
 126                         Sleep(1);
 127                         Application.ProcessMessages;
 128                 end;
 129
 130                 try
 131                         OleVariant(Self.Browser.Document as IHTMLDocument2).body.scrollTop
 132                 := OleVariant(Self.Browser.Document as IHTMLDocument2).body.scrollTop
 133                     + scroll;
 134                 except
 135                 end;
 136         end;
 137 end;
 138
 139 //ID\83A\83\93\83J\81[\92Ç\89Á
 140 procedure TBrowserRecord.IDAnchorPopup(Abody :string);
 141 const
 142         OUTER_HTML = '<p id="idSearch"></p>';
 143         HIDDEN = 'hidden';
 144 var
 145         firstElement: IHTMLElement;
 146         document: IHTMLDocument2;
 147         docAll: IHTMLElementCollection;
 148         doc : Variant;
 149         nCSS : string;
 150 begin
 151         if Self.Browser <> nil then begin
 152                 try
 153                         document := Self.Browser.Document as IHTMLDocument2;
 154
 155                         if Assigned(document) then begin
 156                                 docAll := document.all;
 157                                 firstElement := docAll.item('idSearch', 0) as IHTMLElement;
 158                                 if (Assigned(firstElement)) then begin
 159                                         if Length(Abody) > 0 then begin
 160                                                 doc := Idispatch( olevariant(Self.Browser.ControlInterface).Document) as IHTMLDocument2;
 161                                                 nCSS := '<p id="idSearch" style="position:absolute;top:' + IntToStr(doc.Body.ScrollTop + 10) + 'px;right:5px;' //
 162                                                         + 'background-color:window; border:outset 1px infobackground; z-index:10; overflow-y:auto; border-top:none">'
 163                                                         + Abody + '</p>';
 164                                                 firstElement.outerHTML := nCSS;
 165                                                 firstElement.style.visibility := 'visible';
 166                                         end else begin
 167                                                 firstElement.outerHTML := OUTER_HTML;
 168                                                 firstElement.style.visibility := HIDDEN;
 169                                         end;
 170                                 end else if (Assigned(firstElement)) then begin
 171                                         firstElement.outerHTML := OUTER_HTML;
 172                                         firstElement.style.visibility := HIDDEN;
 173                                 end;
 174                         end;
 175                 except
 176                 end;
 177         end;
 178 end;
 179 {
 180 \brief \8c\9f\8dõ\83_\83C\83A\83\8d\83O\8cÄ\82Ñ\8fo\82µ
 181 }
 182 procedure TBrowserRecord.OpenFindDialog();
 183 const
 184         CGID_WebBrowser: TGUID = '{ED016940-BD5B-11cf-BA4E-00C04FD70816}';
 185         HTMLID_FIND = 1;
 186 var
 187         CmdTarget : IOleCommandTarget;
 188         vaIn, vaOut: OleVariant;
 189         PtrGUID: PGUID;
 190 begin
 191         if (Self.Browser <> nil) and (Self.Browser.Document <> nil) then begin
 192                 //\83u\83\89\83E\83U\82ª\83f\81[\83^\82Ì\93Ç\82Ý\8d\9e\82Ý\92\86\82Ì\8e\9e\82Í\93Ç\82Ý\8d\9e\82Ý\82ð\91Ò\82Â
 193                 while (Self.Browser.ReadyState <> READYSTATE_COMPLETE) and
 194                                         (Self.Browser.ReadyState <> READYSTATE_INTERACTIVE) do begin
 195                         Sleep(1);
 196                         Application.ProcessMessages;
 197                 end;
 198         vaIn  := 0;
 199         vaOut := 0;
 200                 New(PtrGUID);
 201                 PtrGUID^ := CGID_WebBrowser;
 202         try
 203                 try
 204                         if Self.Browser.Document
 205                     .QueryInterface(IOleCommandTarget, CmdTarget)
 206                     = S_OK then begin
 207                             if CmdTarget <> nil then begin
 208                                     try
 209                                             CmdTarget.Exec(PtrGUID, HTMLID_FIND, 0, vaIn, vaOut);
 210                                         finally
 211                                                 CmdTarget._Release;
 212                                         end;
 213                                 end;
 214                 end;
 215                     except
 216                     end;
 217         finally
 218                 Dispose(PtrGUID);
 219         end;
 220         end;
 221 end;
 222
 223 end.