зеркало из https://github.com/mozilla/gecko-dev.git
461 строка
12 KiB
Plaintext
461 строка
12 KiB
Plaintext
/* -*- 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 "nsIconChannel.h"
|
|
#include "nsIIconURI.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsIInterfaceRequestor.h"
|
|
#include "nsIInterfaceRequestorUtils.h"
|
|
#include "nsXPIDLString.h"
|
|
#include "nsMimeTypes.h"
|
|
#include "nsMemory.h"
|
|
#include "nsIStringStream.h"
|
|
#include "nsIURL.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsIMIMEService.h"
|
|
#include "nsCExternalHandlerService.h"
|
|
#include "plstr.h"
|
|
#include "nsILocalFileMac.h"
|
|
#include "nsIFileURL.h"
|
|
#include "nsTArray.h"
|
|
#include "nsObjCExceptions.h"
|
|
|
|
#include <Cocoa/Cocoa.h>
|
|
|
|
// nsIconChannel methods
|
|
nsIconChannel::nsIconChannel()
|
|
{
|
|
}
|
|
|
|
nsIconChannel::~nsIconChannel()
|
|
{}
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS4(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();
|
|
}
|
|
|
|
// 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);
|
|
|
|
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;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// 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);
|
|
}
|
|
|
|
nsresult nsIconChannel::ExtractIconInfoFromUrl(nsIFile ** aLocalFile, uint32_t * aDesiredImageSize, nsACString &aContentType, nsACString &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;
|
|
|
|
nsCOMPtr<nsILocalFileMac> localFileMac (do_QueryInterface(file, &rv));
|
|
if (NS_FAILED(rv) || !localFileMac) return NS_OK;
|
|
|
|
*aLocalFile = file;
|
|
NS_IF_ADDREF(*aLocalFile);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsIconChannel::AsyncOpen(nsIStreamListener *aListener, nsISupports *ctxt)
|
|
{
|
|
nsCOMPtr<nsIInputStream> inStream;
|
|
nsresult rv = MakeInputStream(getter_AddRefs(inStream), true);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Init our stream pump
|
|
rv = mPump->Init(inStream, int64_t(-1), int64_t(-1), 0, 0, false);
|
|
NS_ENSURE_SUCCESS(rv, 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;
|
|
}
|
|
|
|
nsresult nsIconChannel::MakeInputStream(nsIInputStream** _retval, bool nonBlocking)
|
|
{
|
|
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
|
|
|
|
nsXPIDLCString contentType;
|
|
nsAutoCString fileExt;
|
|
nsCOMPtr<nsIFile> fileloc; // file we want an icon for
|
|
uint32_t desiredImageSize;
|
|
nsresult rv = ExtractIconInfoFromUrl(getter_AddRefs(fileloc), &desiredImageSize, contentType, fileExt);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
bool fileExists = false;
|
|
if (fileloc) {
|
|
// ensure that we DO NOT resolve aliases, very important for file views
|
|
fileloc->SetFollowLinks(false);
|
|
fileloc->Exists(&fileExists);
|
|
}
|
|
|
|
NSImage* iconImage = nil;
|
|
|
|
// first try to get the icon from the file if it exists
|
|
if (fileExists) {
|
|
nsCOMPtr<nsILocalFileMac> localFileMac(do_QueryInterface(fileloc, &rv));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
CFURLRef macURL;
|
|
if (NS_SUCCEEDED(localFileMac->GetCFURL(&macURL))) {
|
|
iconImage = [[NSWorkspace sharedWorkspace] iconForFile:[(NSURL*)macURL path]];
|
|
::CFRelease(macURL);
|
|
}
|
|
}
|
|
|
|
// if we don't have an icon yet try to get one by extension
|
|
if (!iconImage && !fileExt.IsEmpty()) {
|
|
NSString* fileExtension = [NSString stringWithUTF8String:fileExt.get()];
|
|
iconImage = [[NSWorkspace sharedWorkspace] iconForFileType:fileExtension];
|
|
}
|
|
|
|
// If we still don't have an icon, get the generic document icon.
|
|
if (!iconImage)
|
|
iconImage = [[NSWorkspace sharedWorkspace] iconForFileType:NSFileTypeUnknown];
|
|
|
|
if (!iconImage)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// we have an icon now, size it
|
|
NSRect desiredSizeRect = NSMakeRect(0, 0, desiredImageSize, desiredImageSize);
|
|
[iconImage setSize:desiredSizeRect.size];
|
|
|
|
[iconImage lockFocus];
|
|
NSBitmapImageRep* bitmapRep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:desiredSizeRect] autorelease];
|
|
[iconImage unlockFocus];
|
|
|
|
// we expect the following things to be true about our bitmapRep
|
|
NS_ENSURE_TRUE(![bitmapRep isPlanar] &&
|
|
// Not necessarily: on a HiDPI-capable system, we'll get a 2x bitmap
|
|
// (unsigned int)[bitmapRep bytesPerPlane] == desiredImageSize * desiredImageSize * 4 &&
|
|
[bitmapRep bitsPerPixel] == 32 &&
|
|
[bitmapRep samplesPerPixel] == 4 &&
|
|
[bitmapRep hasAlpha] == YES,
|
|
NS_ERROR_UNEXPECTED);
|
|
|
|
// check what size we actually got, and ensure it isn't too big to return
|
|
uint32_t actualImageSize = [bitmapRep bytesPerRow] / 4;
|
|
NS_ENSURE_TRUE(actualImageSize < 256, NS_ERROR_UNEXPECTED);
|
|
|
|
// now we can validate the amount of data
|
|
NS_ENSURE_TRUE((unsigned int)[bitmapRep bytesPerPlane] == actualImageSize * actualImageSize * 4,
|
|
NS_ERROR_UNEXPECTED);
|
|
|
|
// rgba, pre-multiplied data
|
|
uint8_t* bitmapRepData = (uint8_t*)[bitmapRep bitmapData];
|
|
|
|
// create our buffer
|
|
int32_t bufferCapacity = 2 + [bitmapRep bytesPerPlane];
|
|
nsAutoTArray<uint8_t, 3 + 16 * 16 * 5> iconBuffer; // initial size is for 16x16
|
|
if (!iconBuffer.SetLength(bufferCapacity))
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
uint8_t* iconBufferPtr = iconBuffer.Elements();
|
|
|
|
// write header data into buffer
|
|
*iconBufferPtr++ = actualImageSize;
|
|
*iconBufferPtr++ = actualImageSize;
|
|
|
|
uint32_t dataCount = [bitmapRep bytesPerPlane];
|
|
uint32_t index = 0;
|
|
while (index < dataCount) {
|
|
// get data from the bitmap
|
|
uint8_t r = bitmapRepData[index++];
|
|
uint8_t g = bitmapRepData[index++];
|
|
uint8_t b = bitmapRepData[index++];
|
|
uint8_t a = bitmapRepData[index++];
|
|
|
|
// write data out to our buffer
|
|
// non-cairo uses native image format, but the A channel is ignored.
|
|
// cairo uses ARGB (highest to lowest bits)
|
|
#if defined(IS_LITTLE_ENDIAN)
|
|
*iconBufferPtr++ = b;
|
|
*iconBufferPtr++ = g;
|
|
*iconBufferPtr++ = r;
|
|
*iconBufferPtr++ = a;
|
|
#else
|
|
*iconBufferPtr++ = a;
|
|
*iconBufferPtr++ = r;
|
|
*iconBufferPtr++ = g;
|
|
*iconBufferPtr++ = b;
|
|
#endif
|
|
}
|
|
|
|
NS_ASSERTION(iconBufferPtr == iconBuffer.Elements() + bufferCapacity,
|
|
"buffer size miscalculation");
|
|
|
|
// 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),
|
|
bufferCapacity, bufferCapacity, nonBlocking);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
uint32_t written;
|
|
rv = outStream->Write((char*)iconBuffer.Elements(), bufferCapacity, &written);
|
|
if (NS_SUCCEEDED(rv))
|
|
NS_IF_ADDREF(*_retval = inStream);
|
|
}
|
|
|
|
// Drop notification callbacks to prevent cycles.
|
|
mCallbacks = nullptr;
|
|
|
|
return NS_OK;
|
|
|
|
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
|
|
}
|
|
|
|
NS_IMETHODIMP nsIconChannel::GetLoadFlags(uint32_t *aLoadAttributes)
|
|
{
|
|
return mPump->GetLoadFlags(aLoadAttributes);
|
|
}
|
|
|
|
NS_IMETHODIMP nsIconChannel::SetLoadFlags(uint32_t aLoadAttributes)
|
|
{
|
|
return mPump->SetLoadFlags(aLoadAttributes);
|
|
}
|
|
|
|
NS_IMETHODIMP nsIconChannel::GetContentType(nsACString &aContentType)
|
|
{
|
|
aContentType.AssignLiteral(IMAGE_ICON_MS);
|
|
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.AssignLiteral(IMAGE_ICON_MS);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsIconChannel::SetContentCharset(const nsACString &aContentCharset)
|
|
{
|
|
//It doesn't make sense to set the content-type 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 = mContentLength;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP nsIconChannel::SetContentLength(int64_t aContentLength)
|
|
{
|
|
NS_NOTREACHED("nsIconChannel::SetContentLength");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
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::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::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;
|
|
}
|
|
|