BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  TCPPWebBrowser and obtaining source after changing          BorlandTalk.com Forum Index -> C++ Builder (Internet Web) View previous topic :: View next topic   Author Message Tom Guest Posted: Wed Mar 14, 2007 2:11 am    Post subject: TCPPWebBrowser and obtaining source after changing After modifying the source by using IHTMLDOMNode to insert a new node the source code that's returned does not reflect this change (what's shown in the browser is correct). What is the proper method for obtaining the new source? Right now I'm the code below which was obtained from the archives and slightly modified. Thanks, Tom AnsiString Source = ""; TComInterface<IHTMLDocument2> htm; if(Browser->Document && SUCCEEDED(Browser->Document->QueryInterface(IID_IHTMLDocument2, (LPVOID*)&htm))) { TComInterface<IPersistStreamInit> spPsi; if(SUCCEEDED(htm->QueryInterface(IID_IPersistStreamInit, (LPVOID*)&spPsi))) { TComInterface<IStream> spStream; OleCheck(CreateStreamOnHGlobal(NULL, true, &spStream)); if(spStream) { __int64 nSize = 0; STATSTG ss; LARGE_INTEGER nMove; nMove.QuadPart = 0; OleCheck(spPsi->Save(spStream, true)); OleCheck(spStream->Seek(nMove, STREAM_SEEK_SET, (ULARGE_INTEGER*)&nSize)); OleCheck(spStream->Stat(&ss, STATFLAG_NONAME)); nSize = ss.cbSize.QuadPart; Source.SetLength(nSize); OleCheck(spStream->Read((void *)Source.data(), nSize, (ULONG*)&nSize)); } } } Back to top Remy Lebeau (TeamB) Guest Posted: Wed Mar 14, 2007 3:47 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing "Tom" <tom (AT) nospam (DOT) net> wrote in message news:45f70570 (AT) newsgroups (DOT) borland.com... Quote: After modifying the source by using IHTMLDOMNode to insert a new node the source code that's returned does not reflect this change (what's shown in the browser is correct). What is the proper method for obtaining the new source? Right now I'm the code below which was obtained from the archives and slightly modified. When you retreive the source for a document, you are telling the stream to clear its dirty flag. When you add a new node to the same document afterwards, I'm guessing that the flag is not being reset, so the stream does not generate new data the next time it is read from the same document. Gambit Back to top Tom Guest Posted: Wed Mar 14, 2007 4:08 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing Quote: I'm guessing that the flag is not being reset, so the stream does not generate new data the next time it is read from the same document. How can I force the flag to be reset? Thanks, Tom Back to top Remy Lebeau (TeamB) Guest Posted: Wed Mar 14, 2007 4:47 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing "Tom" <tom (AT) nospam (DOT) net> wrote in message news:45f720ed (AT) newsgroups (DOT) borland.com... Quote: How can I force the flag to be reset? You can't. The browser controls that internally. Gambit Back to top Remy Lebeau (TeamB) Guest Posted: Wed Mar 14, 2007 4:55 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing "Tom" <tom (AT) nospam (DOT) net> wrote in message news:45f70570 (AT) newsgroups (DOT) borland.com... Quote: After modifying the source by using IHTMLDOMNode to insert a new node the source code that's returned does not reflect this change (what's shown in the browser is correct). Instead of using IPersistStreamInit, try grabbing the current HTML from the document's outerHTML property instead, for example: WideString Source; TComInterface<IHTMLDocument3> htm; if( Browser->Document ) Browser->Document->QueryInterface(IID_IHTMLDocument3, (LPVOID*)&htm); if( htm ) { TComInterface<IHTMLElement> element; htm->get_documentElement(&element); if( element ) element->get_outerHTML(&Source); } Gambit Back to top Tom Guest Posted: Wed Mar 14, 2007 5:29 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing Remy, That code does return the correct source however it removes any formatting the source had with respect to line breaks and indenting. It also changes the capitalization of the tags and removes quotes from attributes that should be there. Do you have any way of preserving these aspects? Thanks, Tom Back to top Remy Lebeau (TeamB) Guest Posted: Wed Mar 14, 2007 7:55 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing "Tom" <tom (AT) nospam (DOT) net> wrote in message news:45f733de (AT) newsgroups (DOT) borland.com... Quote: Do you have any way of preserving these aspects? There isn't any. Those are the only two mechanisms that the provide provides for extracting the source code. Your only other option is to simply not download the original HTML using the web browser at all, but to download it off of the server directly with your own socket code. But then you lose the editing capabilities that you are looking for, unless you parse the HTML manually as well. Gambit Back to top Tom Guest Posted: Wed Mar 14, 2007 6:19 pm    Post subject: Re: TCPPWebBrowser and obtaining source after changing Gambit, I should have clarified things a bit sooner. I'm basically working on an HTML editor, so the source code the browser starts out with is written by me. The part I'm struggling with now has to do with re-ordering objects after the user has dragged and dropped them. The objects get moved around find in the display. Then when I re-populate the treeview control with all elements contained in the document those are shown correctly too. Not sure if that info may shed some light on what I may already be doing wrong, or if there's another solution to my problem. I'm going to keep trying to trigger that dirty flag. Thanks, Tom Back to top Tom Guest Posted: Wed Mar 14, 2007 10:27 pm    Post subject: Re: TCPPWebBrowser and obtaining source after changing Quote: Are you using the DHTML editor control that Microsoft provides? It is already integrated with Internet Explorer, which TCppWebBrowser wraps. No, alot of what I'm "editing" is CSS based. I have a column of controls for adjusting background color, border color/thickness/style, fonts, etc all through CSS and not HTML properties. From what I can tell from the MS Docs I can't accomplish what I want through the editor. I can edit the same properties but they get set on a per element basis. I'm reading under: Web Development -> Internet Explorer Development -> Hosting and Reuse -> MSHTML Editing. If this is the wrong section please correct me. The editor is meant to be as simple as possible, with little to no actual HTML editing done. Inserting pre-existing blocks of html code for the desired look. The program is meant for creating templates for another program of mine, rather than creating static web pages. -Tom Back to top Remy Lebeau (TeamB) Guest Posted: Wed Mar 14, 2007 10:58 pm    Post subject: Re: TCPPWebBrowser and obtaining source after changing "Tom" <tom (AT) nospam (DOT) net> wrote in message news:45f7f66b$1 (AT) newsgroups (DOT) borland.com... Quote: I should have clarified things a bit sooner. I'm basically working on an HTML editor, Are you using the DHTML editor control that Microsoft provides? It is already integrated with Internet Explorer, which TCppWebBrowser wraps. Gambit Back to top Tom Guest Posted: Thu Mar 15, 2007 1:22 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing Quote: Are you using the DHTML editor control that Microsoft provides? It is already integrated with Internet Explorer, which TCppWebBrowser wraps. After looking some more I may be able to use the built in editor and accomplish what I want. The source code seems to pull correctly after re-ordering the items. However, I now have a new problem. I had been overriding the event handler with ICustomDoc -> SetUIHandler to trap the left clicks and context menus but now that the browser is in design mode it doesn't seem to work? By this I mean if I click on an element it's selected in the editor but the event isn't triggered. If I don't click on an element, say below the last one, the event is triggered. Any advice is appreciated. -Tom Back to top Mark Guerrieri Guest Posted: Thu Mar 15, 2007 8:10 am    Post subject: Re: TCPPWebBrowser and obtaining source after changing Quote: After looking some more I may be able to use the built in editor and accomplish If you are using the DHTML Editing ActiveX control, do some research first. It is deprecated by Microsoft. Some XP updates disable this control, and it is not even shipped with Vista. You are encouraged to use the "designMode" attribute of the document and use MSHTML editing instead (very powerful, but not easy to extend the default behaviors...) Worst of all, no source preservation... 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