/usr/include/firefox-esr-52/mozilla/dom/ImageCapture.h is in firefox-esr-dev 52.8.1esr-1~deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 IMAGECAPTURE_H
#define IMAGECAPTURE_H
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/ImageCaptureBinding.h"
#include "mozilla/Logging.h"
namespace mozilla {
#ifndef IC_LOG
LogModule* GetICLog();
#define IC_LOG(...) MOZ_LOG(GetICLog(), mozilla::LogLevel::Debug, (__VA_ARGS__))
#endif
namespace dom {
class Blob;
class VideoStreamTrack;
/**
* Implementation of https://dvcs.w3.org/hg/dap/raw-file/default/media-stream-
* capture/ImageCapture.html.
* The ImageCapture accepts a VideoStreamTrack as input source. The image will
* be sent back as a JPG format via Blob event.
*
* All the functions in ImageCapture are run in main thread.
*
* There are two ways to capture image, MediaEngineSource and MediaStreamGraph.
* When the implementation of MediaEngineSource supports TakePhoto(),
* it uses the platform camera to grab image. Otherwise, it falls back
* to the MediaStreamGraph way.
*/
class ImageCapture final : public DOMEventTargetHelper
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ImageCapture, DOMEventTargetHelper)
IMPL_EVENT_HANDLER(photo)
IMPL_EVENT_HANDLER(error)
// WebIDL members.
void TakePhoto(ErrorResult& aResult);
// The MediaStream passed into the constructor.
VideoStreamTrack* GetVideoStreamTrack() const;
// nsWrapperCache member
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override
{
return ImageCaptureBinding::Wrap(aCx, this, aGivenProto);
}
// ImageCapture class members
nsPIDOMWindowInner* GetParentObject() { return GetOwner(); }
static already_AddRefed<ImageCapture> Constructor(const GlobalObject& aGlobal,
VideoStreamTrack& aTrack,
ErrorResult& aRv);
ImageCapture(VideoStreamTrack* aVideoStreamTrack,
nsPIDOMWindowInner* aOwnerWindow);
// Post a Blob event to script.
nsresult PostBlobEvent(Blob* aBlob);
// Post an error event to script.
// aErrorCode should be one of error codes defined in ImageCaptureError.h.
// aReason is the nsresult which maps to a error string in dom/base/domerr.msg.
nsresult PostErrorEvent(uint16_t aErrorCode, nsresult aReason = NS_OK);
bool CheckPrincipal();
protected:
virtual ~ImageCapture();
// Capture image by MediaEngine. If it's not support taking photo, this function
// should return NS_ERROR_NOT_IMPLEMENTED.
nsresult TakePhotoByMediaEngine();
RefPtr<VideoStreamTrack> mVideoStreamTrack;
};
} // namespace dom
} // namespace mozilla
#endif // IMAGECAPTURE_H
|