зеркало из https://github.com/mozilla/pjs.git
NOT PART OF THE BUILD YET
Windows specific icon channel implemenation for reading out icon bitmaps from the OS. Landing files for icon urls. For windows only currently, this code will read out icon bitmaps based on info from the windows registry and turns that into a 24 bit RGB image which we can render. Icon urls have the form of: icon://test.html/large icon://test.doc/small icon://test.doc (defaults to small). Currently doesn't work on win2k yet.
This commit is contained in:
mscott%netscape.com
Родитель
12a00a40c4
Коммит
05d680f30f
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@ -0,0 +1,46 @@
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#!gmake
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#
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# The contents of this file are subject to the Netscape Public
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# License Version 1.1 (the "License"); you may not use this file
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# except in compliance with the License. You may obtain a copy of
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# the License at http://www.mozilla.org/NPL/
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||||
#
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# Software distributed under the License is distributed on an "AS
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# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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# implied. See the License for the specific language governing
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||||
# rights and limitations under the License.
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#
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# The Original Code is mozilla.org code.
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#
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# The Initial Developer of the Original Code is Netscape
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# Communications Corporation. Portions created by Netscape are
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# Copyright (C) 1998 Netscape Communications Corporation. All
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# Rights Reserved.
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#
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# Contributor(s):
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# Scott MacGregor <mscott@netscape.com>
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DEPTH=..\..\..\..\..
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MODULE=imgicon
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LIBRARY_NAME=imgiconwin_s
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CPP_OBJS=\
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.\$(OBJDIR)\nsIconChannel.obj \
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$(NULL)
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INCS = $(INCS) \
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-I$(DEPTH)\dist\include \
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-I..\ \
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$(NULL)
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include <$(DEPTH)\config\rules.mak>
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install:: $(LIBRARY)
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$(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib
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clobber::
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rm -f $(DIST)\lib\$(LIBRARY_NAME).lib
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@ -0,0 +1,347 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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||||
* License Version 1.1 (the "License"); you may not use this file
|
||||
* except in compliance with the License. You may obtain a copy of
|
||||
* the License at http://www.mozilla.org/MPL/
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||||
*
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* Software distributed under the License is distributed on an "AS
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||||
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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||||
* implied. See the License for the specific language governing
|
||||
* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Brian Ryner.
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* Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
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* All Rights Reserved.
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*
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* Contributor(s):
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* Scott MacGregor <mscott@netscape.com>
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*/
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#include "nsIconChannel.h"
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#include "nsIServiceManager.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsXPIDLString.h"
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#include "nsMimeTypes.h"
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#include "nsMemory.h"
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#include "nsIStringStream.h"
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#include "nsIURL.h"
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#include "nsNetUtil.h"
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// we need windows.h to read out registry information...
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#include <windows.h>
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#include <shellapi.h>
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// nsIconChannel methods
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nsIconChannel::nsIconChannel()
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{
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NS_INIT_REFCNT();
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mStatus = NS_OK;
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}
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nsIconChannel::~nsIconChannel()
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{}
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NS_IMPL_THREADSAFE_ISUPPORTS2(nsIconChannel,
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nsIChannel,
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nsIRequest)
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nsresult nsIconChannel::Init(nsIURI* uri)
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{
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nsresult rv;
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NS_ASSERTION(uri, "no uri");
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mUrl = uri;
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIRequest methods:
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NS_IMETHODIMP nsIconChannel::GetName(PRUnichar* *result)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsIconChannel::IsPending(PRBool *result)
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{
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NS_NOTREACHED("nsIconChannel::IsPending");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsIconChannel::GetStatus(nsresult *status)
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{
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*status = mStatus;
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::Cancel(nsresult status)
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{
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NS_ASSERTION(NS_FAILED(status), "shouldn't cancel with a success code");
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nsresult rv = NS_ERROR_FAILURE;
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mStatus = status;
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return rv;
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}
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NS_IMETHODIMP nsIconChannel::Suspend(void)
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{
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NS_NOTREACHED("nsIconChannel::Suspend");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsIconChannel::Resume(void)
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{
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NS_NOTREACHED("nsIconChannel::Resume");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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////////////////////////////////////////////////////////////////////////////////
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// nsIChannel methods:
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NS_IMETHODIMP nsIconChannel::GetOriginalURI(nsIURI* *aURI)
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{
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*aURI = mOriginalURI ? mOriginalURI : mUrl;
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NS_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::SetOriginalURI(nsIURI* aURI)
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{
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mOriginalURI = aURI;
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::GetURI(nsIURI* *aURI)
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{
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*aURI = mUrl;
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NS_IF_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::SetURI(nsIURI* aURI)
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{
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mUrl = aURI;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsIconChannel::Open(nsIInputStream **_retval)
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{
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return NS_ERROR_FAILURE;
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}
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void InvertRows(unsigned char * aInitialBuffer, PRUint32 sizeOfBuffer, PRUint32 numBytesPerRow)
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{
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PRUint32 numRows = sizeOfBuffer / numBytesPerRow;
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void * temporaryRowHolder = (void *) nsMemory::Alloc(numBytesPerRow);
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PRUint32 currentRow = 0;
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PRUint32 lastRow = (numRows - 1) * numBytesPerRow;
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while (currentRow < lastRow)
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{
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// store the current row into a temporary buffer
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nsCRT::memcpy(temporaryRowHolder, (void *) &aInitialBuffer[currentRow], numBytesPerRow);
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nsCRT::memcpy((void *) &aInitialBuffer[currentRow], (void *)&aInitialBuffer[lastRow], numBytesPerRow);
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nsCRT::memcpy((void *) &aInitialBuffer[lastRow], temporaryRowHolder, numBytesPerRow);
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lastRow -= numBytesPerRow;
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currentRow += numBytesPerRow;
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}
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}
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NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
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{
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// get the file name from the url
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nsXPIDLCString fileName; // will contain a dummy file we'll use to figure out the type of icon desired.
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nsXPIDLCString filePath; // will contain an optional parameter for small vs. large icon. default is small
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mUrl->GetHost(getter_Copies(fileName));
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nsCOMPtr<nsIURL> url (do_QueryInterface(mUrl));
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if (url)
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url->GetFileBaseName(getter_Copies(filePath));
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// 1) get a hIcon for the file.
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SHFILEINFO sfi;
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UINT infoFlags = SHGFI_USEFILEATTRIBUTES | SHGFI_ICON;
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if (filePath && !nsCRT::strcmp(filePath, "large"))
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infoFlags |= SHGFI_LARGEICON;
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else // default to small
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infoFlags |= SHGFI_SMALLICON;
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LONG result= SHGetFileInfo(fileName, FILE_ATTRIBUTE_ARCHIVE, &sfi, sizeof(sfi), infoFlags);
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if (result > 0 && sfi.hIcon)
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{
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// we got a handle to an icon. Now we want to get a bitmap for the icon using GetIconInfo....
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ICONINFO pIconInfo;
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result = GetIconInfo(sfi.hIcon, &pIconInfo);
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if (result > 0)
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{
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// now we have the bit map we need to get info about the bitmap
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BITMAPINFO pBitMapInfo;
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BITMAPINFOHEADER pBitMapInfoHeader;
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pBitMapInfo.bmiHeader.biBitCount = 0;
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pBitMapInfo.bmiHeader.biSize = sizeof(pBitMapInfoHeader);
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HDC pDC = CreateCompatibleDC(NULL); // get a device context for the screen.
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result = GetDIBits(pDC, pIconInfo.hbmColor, 0, 0, NULL, &pBitMapInfo, DIB_RGB_COLORS);
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if (result > 0 && pBitMapInfo.bmiHeader.biSizeImage > 0)
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{
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// allocate a buffer to hold the bit map....this should be a buffer that's biSizeImage...
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unsigned char * buffer = (PRUint8 *) nsMemory::Alloc(pBitMapInfo.bmiHeader.biSizeImage);
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result = GetDIBits(pDC, pIconInfo.hbmColor, 0, pBitMapInfo.bmiHeader.biHeight, (void *) buffer, &pBitMapInfo, DIB_RGB_COLORS);
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if (result > 0)
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{
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InvertRows(buffer, pBitMapInfo.bmiHeader.biSizeImage, pBitMapInfo.bmiHeader.biWidth * (pBitMapInfo.bmiHeader.biBitCount / 8));
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// Convert our little icon buffer which is padded to 4 bytes per pixel into a nice 3 byte per pixel
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// description.
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nsCString iconBuffer;
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iconBuffer.Assign((char) pBitMapInfo.bmiHeader.biWidth);
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iconBuffer.Append((char) pBitMapInfo.bmiHeader.biHeight);
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PRInt32 index = 0;
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while (index <pBitMapInfo.bmiHeader.biSizeImage)
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{
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iconBuffer.Append((char) buffer[index]);
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iconBuffer.Append((char) buffer[index+1]);
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iconBuffer.Append((char) buffer[index+2]);
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index += 4;
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}
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// now we need to tack on the alpha data...which is hbmMask
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pBitMapInfo.bmiHeader.biBitCount = 0;
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pBitMapInfo.bmiHeader.biSize = sizeof(pBitMapInfoHeader);
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result = GetDIBits(pDC, pIconInfo.hbmMask, 0, 0, NULL, &pBitMapInfo, DIB_RGB_COLORS);
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if (result > 0 && pBitMapInfo.bmiHeader.biSizeImage > 0)
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{
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// allocate a buffer to hold the bit map....this should be a buffer that's biSizeImage...
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unsigned char * maskBuffer = (PRUint8 *) nsMemory::Alloc(pBitMapInfo.bmiHeader.biSizeImage);
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result = GetDIBits(pDC, pIconInfo.hbmMask, 0, pBitMapInfo.bmiHeader.biHeight, (void *) maskBuffer, &pBitMapInfo, DIB_RGB_COLORS);
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if (result > 0)
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{
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InvertRows(maskBuffer, pBitMapInfo.bmiHeader.biSizeImage, 4);
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index = 0;
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// for some reason the bit mask on windows are flipped from the values we really want for transparency.
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// So complement each byte in the bit mask.
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while (index < pBitMapInfo.bmiHeader.biSizeImage)
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{
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maskBuffer[index]^=255;
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index += 1;
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}
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iconBuffer.Append((char *) maskBuffer, pBitMapInfo.bmiHeader.biSizeImage);
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}
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nsMemory::Free(maskBuffer);
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} // if we have a mask buffer to apply
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// turn our nsString into a stream looking object...
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aListener->OnStartRequest(this, ctxt);
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// turn our string into a stream...
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nsCOMPtr<nsISupports> streamSupports;
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NS_NewByteInputStream(getter_AddRefs(streamSupports), iconBuffer.get(), iconBuffer.Length());
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nsCOMPtr<nsIInputStream> inputStr (do_QueryInterface(streamSupports));
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aListener->OnDataAvailable(this, ctxt, inputStr, 0, iconBuffer.Length());
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aListener->OnStopRequest(this, ctxt, NS_OK, nsnull);
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} // if we got valid bits for the main bitmap mask
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nsMemory::Free(buffer);
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}
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DeleteDC(pDC);
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::GetLoadAttributes(PRUint32 *aLoadAttributes)
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{
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*aLoadAttributes = mLoadAttributes;
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::SetLoadAttributes(PRUint32 aLoadAttributes)
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{
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mLoadAttributes = aLoadAttributes;
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::GetContentType(char* *aContentType)
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{
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if (!aContentType) return NS_ERROR_NULL_POINTER;
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*aContentType = nsCRT::strdup("image/icon");
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if (!*aContentType) return NS_ERROR_OUT_OF_MEMORY;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsIconChannel::SetContentType(const char *aContentType)
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{
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//It doesn't make sense to set the content-type on this type
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// of channel...
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP nsIconChannel::GetContentLength(PRInt32 *aContentLength)
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{
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*aContentLength = mContentLength;
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return NS_OK;
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}
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NS_IMETHODIMP nsIconChannel::SetContentLength(PRInt32 aContentLength)
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{
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NS_NOTREACHED("nsIconChannel::SetContentLength");
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return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
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||||
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NS_IMETHODIMP nsIconChannel::GetLoadGroup(nsILoadGroup* *aLoadGroup)
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{
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*aLoadGroup = mLoadGroup;
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NS_IF_ADDREF(*aLoadGroup);
|
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return NS_OK;
|
||||
}
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NS_IMETHODIMP nsIconChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
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{
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mLoadGroup = aLoadGroup;
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return NS_OK;
|
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}
|
||||
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NS_IMETHODIMP nsIconChannel::GetOwner(nsISupports* *aOwner)
|
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{
|
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*aOwner = mOwner.get();
|
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NS_IF_ADDREF(*aOwner);
|
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return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::SetOwner(nsISupports* aOwner)
|
||||
{
|
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mOwner = aOwner;
|
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return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
|
||||
{
|
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*aNotificationCallbacks = mCallbacks.get();
|
||||
NS_IF_ADDREF(*aNotificationCallbacks);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
|
||||
{
|
||||
mCallbacks = aNotificationCallbacks;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP nsIconChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
|
||||
{
|
||||
*aSecurityInfo = nsnull;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Mozilla Public
|
||||
* License Version 1.1 (the "License"); you may not use this file
|
||||
* except in compliance with the License. You may obtain a copy of
|
||||
* the License at http://www.mozilla.org/MPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS
|
||||
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
||||
* implied. See the License for the specific language governing
|
||||
* rights and limitations under the License.
|
||||
*
|
||||
* The Original Code is mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Brian Ryner.
|
||||
* Portions created by Brian Ryner are Copyright (C) 2000 Brian Ryner.
|
||||
* All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
* Scott MacGregor <mscott@netscape.com>
|
||||
*/
|
||||
|
||||
#ifndef nsIconChannel_h___
|
||||
#define nsIconChannel_h___
|
||||
|
||||
#include "nsCOMPtr.h"
|
||||
#include "nsXPIDLString.h"
|
||||
#include "nsIChannel.h"
|
||||
#include "nsILoadGroup.h"
|
||||
#include "nsIInterfaceRequestor.h"
|
||||
#include "nsIURI.h"
|
||||
|
||||
class nsIconChannel : public nsIChannel
|
||||
{
|
||||
public:
|
||||
NS_DECL_ISUPPORTS
|
||||
NS_DECL_NSIREQUEST
|
||||
NS_DECL_NSICHANNEL
|
||||
|
||||
nsIconChannel();
|
||||
virtual ~nsIconChannel();
|
||||
|
||||
nsresult Init(nsIURI* uri);
|
||||
|
||||
protected:
|
||||
nsCOMPtr<nsIURI> mUrl;
|
||||
nsCOMPtr<nsIURI> mOriginalURI;
|
||||
PRUint32 mLoadAttributes;
|
||||
PRInt32 mContentLength;
|
||||
nsCOMPtr<nsILoadGroup> mLoadGroup;
|
||||
nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
|
||||
nsCOMPtr<nsISupports> mOwner;
|
||||
nsresult mStatus;
|
||||
};
|
||||
|
||||
#endif /* nsIconChannel_h___ */
|
||||
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