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-rw-r--r--image/decoders/icon/win/moz.build11
-rw-r--r--image/decoders/icon/win/nsIconChannel.cpp841
-rw-r--r--image/decoders/icon/win/nsIconChannel.h66
3 files changed, 918 insertions, 0 deletions
diff --git a/image/decoders/icon/win/moz.build b/image/decoders/icon/win/moz.build
new file mode 100644
index 000000000..6f763d953
--- /dev/null
+++ b/image/decoders/icon/win/moz.build
@@ -0,0 +1,11 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+ 'nsIconChannel.cpp',
+]
+
+FINAL_LIBRARY = 'xul'
diff --git a/image/decoders/icon/win/nsIconChannel.cpp b/image/decoders/icon/win/nsIconChannel.cpp
new file mode 100644
index 000000000..9ddcbbc48
--- /dev/null
+++ b/image/decoders/icon/win/nsIconChannel.cpp
@@ -0,0 +1,841 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "nsIconChannel.h"
+#include "nsIIconURI.h"
+#include "nsIServiceManager.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsXPIDLString.h"
+#include "nsReadableUtils.h"
+#include "nsMimeTypes.h"
+#include "nsMemory.h"
+#include "nsIStringStream.h"
+#include "nsIURL.h"
+#include "nsIOutputStream.h"
+#include "nsIPipe.h"
+#include "nsNetCID.h"
+#include "nsIFile.h"
+#include "nsIFileURL.h"
+#include "nsIMIMEService.h"
+#include "nsCExternalHandlerService.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsProxyRelease.h"
+#include "nsContentSecurityManager.h"
+#include "nsContentUtils.h"
+
+#ifdef _WIN32_WINNT
+#undef _WIN32_WINNT
+#endif
+#define _WIN32_WINNT 0x0600
+
+// we need windows.h to read out registry information...
+#include <windows.h>
+#include <shellapi.h>
+#include <shlobj.h>
+#include <objbase.h>
+#include <wchar.h>
+
+using namespace mozilla;
+
+struct ICONFILEHEADER {
+ uint16_t ifhReserved;
+ uint16_t ifhType;
+ uint16_t ifhCount;
+};
+
+struct ICONENTRY {
+ int8_t ieWidth;
+ int8_t ieHeight;
+ uint8_t ieColors;
+ uint8_t ieReserved;
+ uint16_t iePlanes;
+ uint16_t ieBitCount;
+ uint32_t ieSizeImage;
+ uint32_t ieFileOffset;
+};
+
+// Match stock icons with names
+static SHSTOCKICONID
+GetStockIconIDForName(const nsACString& aStockName)
+{
+ return aStockName.EqualsLiteral("uac-shield") ? SIID_SHIELD :
+ SIID_INVALID;
+}
+
+// nsIconChannel methods
+nsIconChannel::nsIconChannel()
+{
+}
+
+nsIconChannel::~nsIconChannel()
+{
+ if (mLoadInfo) {
+ NS_ReleaseOnMainThread(mLoadInfo.forget());
+ }
+}
+
+NS_IMPL_ISUPPORTS(nsIconChannel,
+ nsIChannel,
+ nsIRequest,
+ nsIRequestObserver,
+ nsIStreamListener)
+
+nsresult
+nsIconChannel::Init(nsIURI* uri)
+{
+ NS_ASSERTION(uri, "no uri");
+ mUrl = uri;
+ mOriginalURI = uri;
+ nsresult rv;
+ mPump = do_CreateInstance(NS_INPUTSTREAMPUMP_CONTRACTID, &rv);
+ return rv;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIRequest methods:
+
+NS_IMETHODIMP
+nsIconChannel::GetName(nsACString& result)
+{
+ return mUrl->GetSpec(result);
+}
+
+NS_IMETHODIMP
+nsIconChannel::IsPending(bool* result)
+{
+ return mPump->IsPending(result);
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetStatus(nsresult* status)
+{
+ return mPump->GetStatus(status);
+}
+
+NS_IMETHODIMP
+nsIconChannel::Cancel(nsresult status)
+{
+ return mPump->Cancel(status);
+}
+
+NS_IMETHODIMP
+nsIconChannel::Suspend(void)
+{
+ return mPump->Suspend();
+}
+
+NS_IMETHODIMP
+nsIconChannel::Resume(void)
+{
+ return mPump->Resume();
+}
+NS_IMETHODIMP
+nsIconChannel::GetLoadGroup(nsILoadGroup** aLoadGroup)
+{
+ *aLoadGroup = mLoadGroup;
+ NS_IF_ADDREF(*aLoadGroup);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
+{
+ mLoadGroup = aLoadGroup;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetLoadFlags(uint32_t* aLoadAttributes)
+{
+ return mPump->GetLoadFlags(aLoadAttributes);
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetLoadFlags(uint32_t aLoadAttributes)
+{
+ return mPump->SetLoadFlags(aLoadAttributes);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIChannel methods:
+
+NS_IMETHODIMP
+nsIconChannel::GetOriginalURI(nsIURI** aURI)
+{
+ *aURI = mOriginalURI;
+ NS_ADDREF(*aURI);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetOriginalURI(nsIURI* aURI)
+{
+ NS_ENSURE_ARG_POINTER(aURI);
+ mOriginalURI = aURI;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetURI(nsIURI** aURI)
+{
+ *aURI = mUrl;
+ NS_IF_ADDREF(*aURI);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::Open(nsIInputStream** _retval)
+{
+ return MakeInputStream(_retval, false);
+}
+
+NS_IMETHODIMP
+nsIconChannel::Open2(nsIInputStream** aStream)
+{
+ nsCOMPtr<nsIStreamListener> listener;
+ nsresult rv = nsContentSecurityManager::doContentSecurityCheck(this, listener);
+ NS_ENSURE_SUCCESS(rv, rv);
+ return Open(aStream);
+}
+
+nsresult
+nsIconChannel::ExtractIconInfoFromUrl(nsIFile** aLocalFile,
+ uint32_t* aDesiredImageSize, nsCString& aContentType,
+ nsCString& aFileExtension)
+{
+ nsresult rv = NS_OK;
+ nsCOMPtr<nsIMozIconURI> iconURI (do_QueryInterface(mUrl, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ iconURI->GetImageSize(aDesiredImageSize);
+ iconURI->GetContentType(aContentType);
+ iconURI->GetFileExtension(aFileExtension);
+
+ nsCOMPtr<nsIURL> url;
+ rv = iconURI->GetIconURL(getter_AddRefs(url));
+ if (NS_FAILED(rv) || !url) return NS_OK;
+
+ nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(url, &rv);
+ if (NS_FAILED(rv) || !fileURL) return NS_OK;
+
+ nsCOMPtr<nsIFile> file;
+ rv = fileURL->GetFile(getter_AddRefs(file));
+ if (NS_FAILED(rv) || !file) return NS_OK;
+
+ return file->Clone(aLocalFile);
+}
+
+NS_IMETHODIMP
+nsIconChannel::AsyncOpen(nsIStreamListener* aListener,
+ nsISupports* ctxt)
+{
+ MOZ_ASSERT(!mLoadInfo ||
+ mLoadInfo->GetSecurityMode() == 0 ||
+ mLoadInfo->GetInitialSecurityCheckDone() ||
+ (mLoadInfo->GetSecurityMode() == nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL &&
+ nsContentUtils::IsSystemPrincipal(mLoadInfo->LoadingPrincipal())),
+ "security flags in loadInfo but asyncOpen2() not called");
+
+ nsCOMPtr<nsIInputStream> inStream;
+ nsresult rv = MakeInputStream(getter_AddRefs(inStream), true);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ // Init our streampump
+ rv = mPump->Init(inStream, int64_t(-1), int64_t(-1), 0, 0, false);
+ if (NS_FAILED(rv)) {
+ return rv;
+ }
+
+ rv = mPump->AsyncRead(this, ctxt);
+ if (NS_SUCCEEDED(rv)) {
+ // Store our real listener
+ mListener = aListener;
+ // Add ourself to the load group, if available
+ if (mLoadGroup) {
+ mLoadGroup->AddRequest(this, nullptr);
+ }
+ }
+ return rv;
+}
+
+NS_IMETHODIMP
+nsIconChannel::AsyncOpen2(nsIStreamListener* aListener)
+{
+ nsCOMPtr<nsIStreamListener> listener = aListener;
+ nsresult rv = nsContentSecurityManager::doContentSecurityCheck(this, listener);
+ NS_ENSURE_SUCCESS(rv, rv);
+ return AsyncOpen(listener, nullptr);
+}
+
+static DWORD
+GetSpecialFolderIcon(nsIFile* aFile, int aFolder,
+ SHFILEINFOW* aSFI, UINT aInfoFlags)
+{
+ DWORD shellResult = 0;
+
+ if (!aFile) {
+ return shellResult;
+ }
+
+ wchar_t fileNativePath[MAX_PATH];
+ nsAutoString fileNativePathStr;
+ aFile->GetPath(fileNativePathStr);
+ ::GetShortPathNameW(fileNativePathStr.get(), fileNativePath,
+ ArrayLength(fileNativePath));
+
+ LPITEMIDLIST idList;
+ HRESULT hr = ::SHGetSpecialFolderLocation(nullptr, aFolder, &idList);
+ if (SUCCEEDED(hr)) {
+ wchar_t specialNativePath[MAX_PATH];
+ ::SHGetPathFromIDListW(idList, specialNativePath);
+ ::GetShortPathNameW(specialNativePath, specialNativePath,
+ ArrayLength(specialNativePath));
+
+ if (!wcsicmp(fileNativePath, specialNativePath)) {
+ aInfoFlags |= (SHGFI_PIDL | SHGFI_SYSICONINDEX);
+ shellResult = ::SHGetFileInfoW((LPCWSTR)(LPCITEMIDLIST)idList, 0,
+ aSFI,
+ sizeof(*aSFI), aInfoFlags);
+ }
+ }
+ CoTaskMemFree(idList);
+ return shellResult;
+}
+
+static UINT
+GetSizeInfoFlag(uint32_t aDesiredImageSize)
+{
+ return
+ (UINT) (aDesiredImageSize > 16 ? SHGFI_SHELLICONSIZE : SHGFI_SMALLICON);
+}
+
+nsresult
+nsIconChannel::GetHIconFromFile(HICON* hIcon)
+{
+ nsXPIDLCString contentType;
+ nsCString fileExt;
+ nsCOMPtr<nsIFile> localFile; // file we want an icon for
+ uint32_t desiredImageSize;
+ nsresult rv = ExtractIconInfoFromUrl(getter_AddRefs(localFile),
+ &desiredImageSize, contentType,
+ fileExt);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // if the file exists, we are going to use it's real attributes...
+ // otherwise we only want to use it for it's extension...
+ SHFILEINFOW sfi;
+ UINT infoFlags = SHGFI_ICON;
+
+ bool fileExists = false;
+
+ nsAutoString filePath;
+ CopyASCIItoUTF16(fileExt, filePath);
+ if (localFile) {
+ rv = localFile->Normalize();
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ localFile->GetPath(filePath);
+ if (filePath.Length() < 2 || filePath[1] != ':') {
+ return NS_ERROR_MALFORMED_URI; // UNC
+ }
+
+ if (filePath.Last() == ':') {
+ filePath.Append('\\');
+ } else {
+ localFile->Exists(&fileExists);
+ if (!fileExists) {
+ localFile->GetLeafName(filePath);
+ }
+ }
+ }
+
+ if (!fileExists) {
+ infoFlags |= SHGFI_USEFILEATTRIBUTES;
+ }
+
+ infoFlags |= GetSizeInfoFlag(desiredImageSize);
+
+ // if we have a content type... then use it! but for existing files,
+ // we want to show their real icon.
+ if (!fileExists && !contentType.IsEmpty()) {
+ nsCOMPtr<nsIMIMEService> mimeService
+ (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsAutoCString defFileExt;
+ mimeService->GetPrimaryExtension(contentType, fileExt, defFileExt);
+ // If the mime service does not know about this mime type, we show
+ // the generic icon.
+ // In any case, we need to insert a '.' before the extension.
+ filePath = NS_LITERAL_STRING(".") +
+ NS_ConvertUTF8toUTF16(defFileExt);
+ }
+
+ // Is this the "Desktop" folder?
+ DWORD shellResult = GetSpecialFolderIcon(localFile, CSIDL_DESKTOP,
+ &sfi, infoFlags);
+ if (!shellResult) {
+ // Is this the "My Documents" folder?
+ shellResult = GetSpecialFolderIcon(localFile, CSIDL_PERSONAL,
+ &sfi, infoFlags);
+ }
+
+ // There are other "Special Folders" and Namespace entities that we
+ // are not fetching icons for, see:
+ // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/
+ // shellcc/platform/shell/reference/enums/csidl.asp
+ // If we ever need to get them, code to do so would be inserted here.
+
+ // Not a special folder, or something else failed above.
+ if (!shellResult) {
+ shellResult = ::SHGetFileInfoW(filePath.get(),
+ FILE_ATTRIBUTE_ARCHIVE,
+ &sfi, sizeof(sfi), infoFlags);
+ }
+
+ if (shellResult && sfi.hIcon) {
+ *hIcon = sfi.hIcon;
+ } else {
+ rv = NS_ERROR_NOT_AVAILABLE;
+ }
+
+ return rv;
+}
+
+nsresult
+nsIconChannel::GetStockHIcon(nsIMozIconURI* aIconURI,
+ HICON* hIcon)
+{
+ nsresult rv = NS_OK;
+
+ // We can only do this on Vista or above
+ HMODULE hShellDLL = ::LoadLibraryW(L"shell32.dll");
+ decltype(SHGetStockIconInfo)* pSHGetStockIconInfo =
+ (decltype(SHGetStockIconInfo)*) ::GetProcAddress(hShellDLL,
+ "SHGetStockIconInfo");
+
+ if (pSHGetStockIconInfo) {
+ uint32_t desiredImageSize;
+ aIconURI->GetImageSize(&desiredImageSize);
+ nsAutoCString stockIcon;
+ aIconURI->GetStockIcon(stockIcon);
+
+ SHSTOCKICONID stockIconID = GetStockIconIDForName(stockIcon);
+ if (stockIconID == SIID_INVALID) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ UINT infoFlags = SHGSI_ICON;
+ infoFlags |= GetSizeInfoFlag(desiredImageSize);
+
+ SHSTOCKICONINFO sii = {0};
+ sii.cbSize = sizeof(sii);
+ HRESULT hr = pSHGetStockIconInfo(stockIconID, infoFlags, &sii);
+
+ if (SUCCEEDED(hr)) {
+ *hIcon = sii.hIcon;
+ } else {
+ rv = NS_ERROR_FAILURE;
+ }
+ } else {
+ rv = NS_ERROR_NOT_AVAILABLE;
+ }
+
+ if (hShellDLL) {
+ ::FreeLibrary(hShellDLL);
+ }
+
+ return rv;
+}
+
+// Given a BITMAPINFOHEADER, returns the size of the color table.
+static int
+GetColorTableSize(BITMAPINFOHEADER* aHeader)
+{
+ int colorTableSize = -1;
+
+ // http://msdn.microsoft.com/en-us/library/dd183376%28v=VS.85%29.aspx
+ switch (aHeader->biBitCount) {
+ case 0:
+ colorTableSize = 0;
+ break;
+ case 1:
+ colorTableSize = 2 * sizeof(RGBQUAD);
+ break;
+ case 4:
+ case 8: {
+ // The maximum possible size for the color table is 2**bpp, so check for
+ // that and fail if we're not in those bounds
+ unsigned int maxEntries = 1 << (aHeader->biBitCount);
+ if (aHeader->biClrUsed > 0 && aHeader->biClrUsed <= maxEntries) {
+ colorTableSize = aHeader->biClrUsed * sizeof(RGBQUAD);
+ } else if (aHeader->biClrUsed == 0) {
+ colorTableSize = maxEntries * sizeof(RGBQUAD);
+ }
+ break;
+ }
+ case 16:
+ case 32:
+ // If we have BI_BITFIELDS compression, we would normally need 3 DWORDS for
+ // the bitfields mask which would be stored in the color table; However,
+ // we instead force the bitmap to request data of type BI_RGB so the color
+ // table should be of size 0.
+ // Setting aHeader->biCompression = BI_RGB forces the later call to
+ // GetDIBits to return to us BI_RGB data.
+ if (aHeader->biCompression == BI_BITFIELDS) {
+ aHeader->biCompression = BI_RGB;
+ }
+ colorTableSize = 0;
+ break;
+ case 24:
+ colorTableSize = 0;
+ break;
+ }
+
+ if (colorTableSize < 0) {
+ NS_WARNING("Unable to figure out the color table size for this bitmap");
+ }
+
+ return colorTableSize;
+}
+
+// Given a header and a size, creates a freshly allocated BITMAPINFO structure.
+// It is the caller's responsibility to null-check and delete the structure.
+static BITMAPINFO*
+CreateBitmapInfo(BITMAPINFOHEADER* aHeader, size_t aColorTableSize)
+{
+ BITMAPINFO* bmi = (BITMAPINFO*) ::operator new(sizeof(BITMAPINFOHEADER) +
+ aColorTableSize,
+ mozilla::fallible);
+ if (bmi) {
+ memcpy(bmi, aHeader, sizeof(BITMAPINFOHEADER));
+ memset(bmi->bmiColors, 0, aColorTableSize);
+ }
+ return bmi;
+}
+
+nsresult
+nsIconChannel::MakeInputStream(nsIInputStream** _retval, bool aNonBlocking)
+{
+ // Check whether the icon requested's a file icon or a stock icon
+ nsresult rv = NS_ERROR_NOT_AVAILABLE;
+
+ // GetDIBits does not exist on windows mobile.
+ HICON hIcon = nullptr;
+
+ nsCOMPtr<nsIMozIconURI> iconURI(do_QueryInterface(mUrl, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsAutoCString stockIcon;
+ iconURI->GetStockIcon(stockIcon);
+ if (!stockIcon.IsEmpty()) {
+ rv = GetStockHIcon(iconURI, &hIcon);
+ } else {
+ rv = GetHIconFromFile(&hIcon);
+ }
+
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (hIcon) {
+ // we got a handle to an icon. Now we want to get a bitmap for the icon
+ // using GetIconInfo....
+ ICONINFO iconInfo;
+ if (GetIconInfo(hIcon, &iconInfo)) {
+ // we got the bitmaps, first find out their size
+ HDC hDC = CreateCompatibleDC(nullptr); // get a device context for
+ // the screen.
+ BITMAPINFOHEADER maskHeader = {sizeof(BITMAPINFOHEADER)};
+ BITMAPINFOHEADER colorHeader = {sizeof(BITMAPINFOHEADER)};
+ int colorTableSize, maskTableSize;
+ if (GetDIBits(hDC, iconInfo.hbmMask, 0, 0, nullptr,
+ (BITMAPINFO*)&maskHeader, DIB_RGB_COLORS) &&
+ GetDIBits(hDC, iconInfo.hbmColor, 0, 0, nullptr,
+ (BITMAPINFO*)&colorHeader, DIB_RGB_COLORS) &&
+ maskHeader.biHeight == colorHeader.biHeight &&
+ maskHeader.biWidth == colorHeader.biWidth &&
+ colorHeader.biBitCount > 8 &&
+ colorHeader.biSizeImage > 0 &&
+ colorHeader.biWidth >= 0 && colorHeader.biWidth <= 255 &&
+ colorHeader.biHeight >= 0 && colorHeader.biHeight <= 255 &&
+ maskHeader.biSizeImage > 0 &&
+ (colorTableSize = GetColorTableSize(&colorHeader)) >= 0 &&
+ (maskTableSize = GetColorTableSize(&maskHeader)) >= 0) {
+ uint32_t iconSize = sizeof(ICONFILEHEADER) +
+ sizeof(ICONENTRY) +
+ sizeof(BITMAPINFOHEADER) +
+ colorHeader.biSizeImage +
+ maskHeader.biSizeImage;
+
+ UniquePtr<char[]> buffer = MakeUnique<char[]>(iconSize);
+ if (!buffer) {
+ rv = NS_ERROR_OUT_OF_MEMORY;
+ } else {
+ char* whereTo = buffer.get();
+ int howMuch;
+
+ // the data starts with an icon file header
+ ICONFILEHEADER iconHeader;
+ iconHeader.ifhReserved = 0;
+ iconHeader.ifhType = 1;
+ iconHeader.ifhCount = 1;
+ howMuch = sizeof(ICONFILEHEADER);
+ memcpy(whereTo, &iconHeader, howMuch);
+ whereTo += howMuch;
+
+ // followed by the single icon entry
+ ICONENTRY iconEntry;
+ iconEntry.ieWidth = static_cast<int8_t>(colorHeader.biWidth);
+ iconEntry.ieHeight = static_cast<int8_t>(colorHeader.biHeight);
+ iconEntry.ieColors = 0;
+ iconEntry.ieReserved = 0;
+ iconEntry.iePlanes = 1;
+ iconEntry.ieBitCount = colorHeader.biBitCount;
+ iconEntry.ieSizeImage = sizeof(BITMAPINFOHEADER) +
+ colorHeader.biSizeImage +
+ maskHeader.biSizeImage;
+ iconEntry.ieFileOffset = sizeof(ICONFILEHEADER) + sizeof(ICONENTRY);
+ howMuch = sizeof(ICONENTRY);
+ memcpy(whereTo, &iconEntry, howMuch);
+ whereTo += howMuch;
+
+ // followed by the bitmap info header
+ // (doubling the height because icons have two bitmaps)
+ colorHeader.biHeight *= 2;
+ colorHeader.biSizeImage += maskHeader.biSizeImage;
+ howMuch = sizeof(BITMAPINFOHEADER);
+ memcpy(whereTo, &colorHeader, howMuch);
+ whereTo += howMuch;
+ colorHeader.biHeight /= 2;
+ colorHeader.biSizeImage -= maskHeader.biSizeImage;
+
+ // followed by the XOR bitmap data (colorHeader)
+ // (you'd expect the color table to come here, but it apparently
+ // doesn't)
+ BITMAPINFO* colorInfo = CreateBitmapInfo(&colorHeader,
+ colorTableSize);
+ if (colorInfo && GetDIBits(hDC, iconInfo.hbmColor, 0,
+ colorHeader.biHeight, whereTo, colorInfo,
+ DIB_RGB_COLORS)) {
+ whereTo += colorHeader.biSizeImage;
+
+ // and finally the AND bitmap data (maskHeader)
+ BITMAPINFO* maskInfo = CreateBitmapInfo(&maskHeader, maskTableSize);
+ if (maskInfo && GetDIBits(hDC, iconInfo.hbmMask, 0,
+ maskHeader.biHeight, whereTo, maskInfo,
+ DIB_RGB_COLORS)) {
+ // Now, create a pipe and stuff our data into it
+ nsCOMPtr<nsIInputStream> inStream;
+ nsCOMPtr<nsIOutputStream> outStream;
+ rv = NS_NewPipe(getter_AddRefs(inStream),
+ getter_AddRefs(outStream),
+ iconSize, iconSize, aNonBlocking);
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t written;
+ rv = outStream->Write(buffer.get(), iconSize, &written);
+ if (NS_SUCCEEDED(rv)) {
+ NS_ADDREF(*_retval = inStream);
+ }
+ }
+
+ } // if we got bitmap bits
+ delete maskInfo;
+ } // if we got mask bits
+ delete colorInfo;
+ } // if we allocated the buffer
+ } // if we got mask size
+
+ DeleteDC(hDC);
+ DeleteObject(iconInfo.hbmColor);
+ DeleteObject(iconInfo.hbmMask);
+ } // if we got icon info
+ DestroyIcon(hIcon);
+ } // if we got an hIcon
+
+ // If we didn't make a stream, then fail.
+ if (!*_retval && NS_SUCCEEDED(rv)) {
+ rv = NS_ERROR_NOT_AVAILABLE;
+ }
+ return rv;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentType(nsACString& aContentType)
+{
+ aContentType.AssignLiteral(IMAGE_ICO);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentType(const nsACString& aContentType)
+{
+ // It doesn't make sense to set the content-type on this type
+ // of channel...
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsIconChannel::GetContentCharset(nsACString& aContentCharset)
+{
+ aContentCharset.Truncate();
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentCharset(const nsACString& aContentCharset)
+{
+ // It doesn't make sense to set the content-charset on this type
+ // of channel...
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentDisposition(uint32_t* aContentDisposition)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentDisposition(uint32_t aContentDisposition)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ GetContentDispositionFilename(nsAString& aContentDispositionFilename)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ SetContentDispositionFilename(const nsAString& aContentDispositionFilename)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ GetContentDispositionHeader(nsACString& aContentDispositionHeader)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentLength(int64_t* aContentLength)
+{
+ *aContentLength = 0;
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentLength(int64_t aContentLength)
+{
+ NS_NOTREACHED("nsIconChannel::SetContentLength");
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetOwner(nsISupports** aOwner)
+{
+ *aOwner = mOwner.get();
+ NS_IF_ADDREF(*aOwner);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetOwner(nsISupports* aOwner)
+{
+ mOwner = aOwner;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetLoadInfo(nsILoadInfo** aLoadInfo)
+{
+ NS_IF_ADDREF(*aLoadInfo = mLoadInfo);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetLoadInfo(nsILoadInfo* aLoadInfo)
+{
+ mLoadInfo = aLoadInfo;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ GetNotificationCallbacks(nsIInterfaceRequestor** aNotificationCallbacks)
+{
+ *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 = nullptr;
+ return NS_OK;
+}
+
+// nsIRequestObserver methods
+NS_IMETHODIMP nsIconChannel::OnStartRequest(nsIRequest* aRequest,
+ nsISupports* aContext)
+{
+ if (mListener) {
+ return mListener->OnStartRequest(this, aContext);
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::OnStopRequest(nsIRequest* aRequest,
+ nsISupports* aContext,
+ nsresult aStatus)
+{
+ if (mListener) {
+ mListener->OnStopRequest(this, aContext, aStatus);
+ mListener = nullptr;
+ }
+
+ // Remove from load group
+ if (mLoadGroup) {
+ mLoadGroup->RemoveRequest(this, nullptr, aStatus);
+ }
+
+ // Drop notification callbacks to prevent cycles.
+ mCallbacks = nullptr;
+
+ return NS_OK;
+}
+
+// nsIStreamListener methods
+NS_IMETHODIMP
+nsIconChannel::OnDataAvailable(nsIRequest* aRequest,
+ nsISupports* aContext,
+ nsIInputStream* aStream,
+ uint64_t aOffset,
+ uint32_t aCount)
+{
+ if (mListener) {
+ return mListener->OnDataAvailable(this, aContext, aStream, aOffset, aCount);
+ }
+ return NS_OK;
+}
diff --git a/image/decoders/icon/win/nsIconChannel.h b/image/decoders/icon/win/nsIconChannel.h
new file mode 100644
index 000000000..94df5a52e
--- /dev/null
+++ b/image/decoders/icon/win/nsIconChannel.h
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_image_encoders_icon_win_nsIconChannel_h
+#define mozilla_image_encoders_icon_win_nsIconChannel_h
+
+#include "mozilla/Attributes.h"
+
+#include "nsCOMPtr.h"
+#include "nsXPIDLString.h"
+#include "nsIChannel.h"
+#include "nsILoadGroup.h"
+#include "nsILoadInfo.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsIURI.h"
+#include "nsIInputStreamPump.h"
+#include "nsIStreamListener.h"
+#include "nsIIconURI.h"
+
+#include <windows.h>
+
+class nsIFile;
+
+class nsIconChannel final : public nsIChannel, public nsIStreamListener
+{
+ ~nsIconChannel();
+
+public:
+ NS_DECL_THREADSAFE_ISUPPORTS
+ NS_DECL_NSIREQUEST
+ NS_DECL_NSICHANNEL
+ NS_DECL_NSIREQUESTOBSERVER
+ NS_DECL_NSISTREAMLISTENER
+
+ nsIconChannel();
+
+ nsresult Init(nsIURI* uri);
+
+protected:
+ nsCOMPtr<nsIURI> mUrl;
+ nsCOMPtr<nsIURI> mOriginalURI;
+ nsCOMPtr<nsILoadGroup> mLoadGroup;
+ nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
+ nsCOMPtr<nsISupports> mOwner;
+ nsCOMPtr<nsILoadInfo> mLoadInfo;
+
+ nsCOMPtr<nsIInputStreamPump> mPump;
+ nsCOMPtr<nsIStreamListener> mListener;
+
+ nsresult ExtractIconInfoFromUrl(nsIFile** aLocalFile,
+ uint32_t* aDesiredImageSize,
+ nsCString& aContentType,
+ nsCString& aFileExtension);
+ nsresult GetHIconFromFile(HICON* hIcon);
+ nsresult MakeInputStream(nsIInputStream** _retval, bool nonBlocking);
+
+ // Functions specific to Vista and above
+protected:
+ nsresult GetStockHIcon(nsIMozIconURI* aIconURI, HICON* hIcon);
+};
+
+#endif // mozilla_image_encoders_icon_win_nsIconChannel_h
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 23:50:57 +0000