david
78ab77cd4c
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.jvcl@19 7f62d464-2af8-f54e-996c-e91b33f51cbe
159 lines
4.8 KiB
ObjectPascal
159 lines
4.8 KiB
ObjectPascal
{-----------------------------------------------------------------------------
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The contents of this file are subject to the Mozilla Public License
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Version 1.1 (the "License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/MPL-1.1.html
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for
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the specific language governing rights and limitations under the License.
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The Original Code is: JvgWebDocumentIterator.PAS, released on 2003-01-15.
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The Initial Developer of the Original Code is Andrey V. Chudin, [chudin att yandex dott ru]
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Portions created by Andrey V. Chudin are Copyright (C) 2003 Andrey V. Chudin.
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All Rights Reserved.
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Contributor(s):
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Michael Beck [mbeck att bigfoot dott com].
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You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
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located at http://jvcl.delphi-jedi.org
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Known Issues:
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-----------------------------------------------------------------------------}
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// $Id: JvgWebDocumentIterator.pas 12461 2009-08-14 17:21:33Z obones $
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unit JvgWebDocumentIterator;
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{$I jvcl.inc}
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interface
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uses
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{$IFDEF UNITVERSIONING}
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JclUnitVersioning,
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{$ENDIF UNITVERSIONING}
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Windows, Classes, SysUtils, Graphics, Controls, Menus, ExtCtrls, SHDocVw,
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JvgCommClasses, JvgTypes;
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type
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{ TJvgIterator = class(TObject)
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protected
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procedure First; virtual; abstract;
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procedure Next; virtual; abstract;
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function IsDone: Boolean; virtual; abstract;
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end;}
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TJvgWebDocumentIterator = class(TObject) // TJvgIterator
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private
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FWebBrowser: TWebBrowser;
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FDoc: Variant;
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FItem: Variant;
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FItemIndex: Integer;
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FDocLocationHRef: string;
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FCurrentItem: TFileName;
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public
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constructor Create(WebBrowser: TWebBrowser);
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procedure First;
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procedure Next;
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function IsDone: Boolean;
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property CurrentItem: TFileName read FCurrentItem;
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end;
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{$IFDEF UNITVERSIONING}
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const
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UnitVersioning: TUnitVersionInfo = (
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RCSfile: '$URL: https://jvcl.svn.sourceforge.net/svnroot/jvcl/tags/JVCL3_39/run/JvgWebDocumentIterator.pas $';
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Revision: '$Revision: 12461 $';
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Date: '$Date: 2009-08-14 19:21:33 +0200 (ven., 14 août 2009) $';
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LogPath: 'JVCL\run'
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);
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{$ENDIF UNITVERSIONING}
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implementation
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constructor TJvgWebDocumentIterator.Create(WebBrowser: TWebBrowser);
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begin
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inherited Create;
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FWebBrowser := WebBrowser;
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FDoc := WebBrowser.Document;
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FDocLocationHRef := FDoc.Location.HRef;
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FDocLocationHRef := StringReplace(FDocLocationHRef, '#', ' ', [rfReplaceAll]);
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FDocLocationHRef := StringReplace(FDocLocationHRef, 'file:///', '', [rfReplaceAll, rfIgnoreCase]);
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FDocLocationHRef := StringReplace(FDocLocationHRef, '/', '\', [rfReplaceAll]);
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end;
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procedure TJvgWebDocumentIterator.First;
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begin
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FItemIndex := -1;
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Next;
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end;
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function TJvgWebDocumentIterator.IsDone: Boolean;
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begin
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Result := FItemIndex > FDoc.Images.Length + {FDoc.All.Length +} FDoc.Links.Length;
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end;
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procedure TJvgWebDocumentIterator.Next;
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begin
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Inc(FItemIndex);
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FCurrentItem := '';
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if IsDone then
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Exit;
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try
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if FItemIndex <= FDoc.Images.Length - 1 then
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begin
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FItem := FDoc.Images.Item(FItemIndex);
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FCurrentItem := FItem.Src;
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end
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else
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if FItemIndex - FDoc.Images.Length <= FDoc.Links.Length - 1 then
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begin
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FItem := FDoc.Links.Item(FItemIndex - FDoc.Images.Length);
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FCurrentItem := FItem.HRef;
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end
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else
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if FItemIndex - FDoc.Images.Length - FDoc.Links.Length <= FDoc.All.Length - 1 then
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begin
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FItem := FDoc.All.Item(FItemIndex - FDoc.Images.Length - FDoc.Links.Length).Style;
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FCurrentItem := FItem.BackgroundImage;
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end;
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except
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Next;
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Exit;
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end;
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FCurrentItem := LowerCase(Trim(FCurrentItem));
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if (FCurrentItem = '') and not IsDone then
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Next;
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if Pos('#', FCurrentItem) > 0 then
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FCurrentItem := Copy(FCurrentItem, 1, Pos('#', FCurrentItem) - 1);
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FCurrentItem := StringReplace(FCurrentItem, 'file:///', '', [rfReplaceAll, rfIgnoreCase]);
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FCurrentItem := StringReplace(FCurrentItem, '/', '\', [rfReplaceAll]);
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if (FDocLocationHRef = FCurrentItem) or
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(Pos('http:\\', FCurrentItem) = 1) or
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(Pos('mailto:', FCurrentItem) = 1) then
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Next
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else
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begin
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FCurrentItem := StringReplace(FCurrentItem, 'url(', '', [rfReplaceAll]);
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FCurrentItem := StringReplace(FCurrentItem, ')', '', [rfReplaceAll]);
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FCurrentItem := StringReplace(FCurrentItem, '%20', ' ', [rfReplaceAll]);
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end;
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end;
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{$IFDEF UNITVERSIONING}
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initialization
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RegisterUnitVersion(HInstance, UnitVersioning);
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finalization
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UnregisterUnitVersion(HInstance);
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{$ENDIF UNITVERSIONING}
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end.
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