db018846ae
Factor out the nsIconChannel symbolic lookup, and expose it to nsImageRenderer to do the icon look-ups with the right CSS color. Differential Revision: https://phabricator.services.mozilla.com/D252791
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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_decoders_icon_gtk_nsIconChannel_h
|
|
#define mozilla_image_decoders_icon_gtk_nsIconChannel_h
|
|
|
|
#include "mozilla/Attributes.h"
|
|
|
|
#include "nsIChannel.h"
|
|
#include "nsIURI.h"
|
|
#include "nsCOMPtr.h"
|
|
|
|
namespace mozilla {
|
|
namespace ipc {
|
|
class ByteBuf;
|
|
}
|
|
namespace gfx {
|
|
class DataSourceSurface;
|
|
}
|
|
} // namespace mozilla
|
|
|
|
/// This class is the GTK implementation of nsIconChannel. It asks
|
|
/// GTK for the icon, translates the pixel data in-memory into
|
|
/// nsIconDecoder format, and proxies the nsChannel interface to a new
|
|
/// channel returning that image.
|
|
class nsIconChannel final : public nsIChannel {
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_FORWARD_NSIREQUEST(mRealChannel->)
|
|
NS_FORWARD_NSICHANNEL(mRealChannel->)
|
|
|
|
nsIconChannel() = default;
|
|
|
|
static void Shutdown();
|
|
|
|
/// Called by nsIconProtocolHandler after it creates this channel.
|
|
/// Must be called before calling any other function on this object.
|
|
/// If this method fails, no other function must be called on this object.
|
|
nsresult Init(nsIURI* aURI, nsILoadInfo* aLoadInfo);
|
|
|
|
/// Obtains an icon, in nsIconDecoder format, as a ByteBuf instead
|
|
/// of a channel. For use with IPC.
|
|
static nsresult GetIcon(nsIURI* aURI, mozilla::ipc::ByteBuf* aDataOut);
|
|
static already_AddRefed<mozilla::gfx::DataSourceSurface> GetSymbolicIcon(
|
|
const nsCString& aName, int aIconSize, int aScale, nscolor aFgColor);
|
|
|
|
private:
|
|
~nsIconChannel() = default;
|
|
/// The input stream channel which will yield the image.
|
|
/// Will always be non-null after a successful Init.
|
|
nsCOMPtr<nsIChannel> mRealChannel;
|
|
};
|
|
|
|
#endif // mozilla_image_decoders_icon_gtk_nsIconChannel_h
|