gecko-dev/image/SVGDocumentWrapper.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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/. */
/* This class wraps an SVG document, for use by VectorImage objects. */
Bug 1038536 - Flatten image/src/ directory. r=seth --HG-- rename : image/src/BMPFileHeaders.h => image/BMPFileHeaders.h rename : image/src/ClippedImage.cpp => image/ClippedImage.cpp rename : image/src/ClippedImage.h => image/ClippedImage.h rename : image/src/DecodePool.cpp => image/DecodePool.cpp rename : image/src/DecodePool.h => image/DecodePool.h rename : image/src/Decoder.cpp => image/Decoder.cpp rename : image/src/Decoder.h => image/Decoder.h rename : image/src/Downscaler.cpp => image/Downscaler.cpp rename : image/src/Downscaler.h => image/Downscaler.h rename : image/src/DynamicImage.cpp => image/DynamicImage.cpp rename : image/src/DynamicImage.h => image/DynamicImage.h rename : image/src/FrameAnimator.cpp => image/FrameAnimator.cpp rename : image/src/FrameAnimator.h => image/FrameAnimator.h rename : image/src/FrozenImage.cpp => image/FrozenImage.cpp rename : image/src/FrozenImage.h => image/FrozenImage.h rename : image/src/ICOFileHeaders.h => image/ICOFileHeaders.h rename : image/src/IProgressObserver.h => image/IProgressObserver.h rename : image/src/Image.cpp => image/Image.cpp rename : image/src/Image.h => image/Image.h rename : image/src/ImageFactory.cpp => image/ImageFactory.cpp rename : image/src/ImageFactory.h => image/ImageFactory.h rename : image/src/ImageMetadata.cpp => image/ImageMetadata.cpp rename : image/src/ImageMetadata.h => image/ImageMetadata.h rename : image/src/ImageOps.cpp => image/ImageOps.cpp rename : image/src/ImageOps.h => image/ImageOps.h rename : image/src/ImageRegion.h => image/ImageRegion.h rename : image/src/ImageURL.h => image/ImageURL.h rename : image/src/ImageWrapper.cpp => image/ImageWrapper.cpp rename : image/src/ImageWrapper.h => image/ImageWrapper.h rename : image/src/MultipartImage.cpp => image/MultipartImage.cpp rename : image/src/MultipartImage.h => image/MultipartImage.h rename : image/src/Orientation.h => image/Orientation.h rename : image/src/OrientedImage.cpp => image/OrientedImage.cpp rename : image/src/OrientedImage.h => image/OrientedImage.h rename : image/src/ProgressTracker.cpp => image/ProgressTracker.cpp rename : image/src/ProgressTracker.h => image/ProgressTracker.h rename : image/src/RasterImage.cpp => image/RasterImage.cpp rename : image/src/RasterImage.h => image/RasterImage.h rename : image/src/SVGDocumentWrapper.cpp => image/SVGDocumentWrapper.cpp rename : image/src/SVGDocumentWrapper.h => image/SVGDocumentWrapper.h rename : image/src/ScriptedNotificationObserver.cpp => image/ScriptedNotificationObserver.cpp rename : image/src/ScriptedNotificationObserver.h => image/ScriptedNotificationObserver.h rename : image/src/ShutdownTracker.cpp => image/ShutdownTracker.cpp rename : image/src/ShutdownTracker.h => image/ShutdownTracker.h rename : image/src/SourceBuffer.cpp => image/SourceBuffer.cpp rename : image/src/SourceBuffer.h => image/SourceBuffer.h rename : image/src/SurfaceCache.cpp => image/SurfaceCache.cpp rename : image/src/SurfaceCache.h => image/SurfaceCache.h rename : image/src/VectorImage.cpp => image/VectorImage.cpp rename : image/src/VectorImage.h => image/VectorImage.h rename : image/src/imgFrame.cpp => image/imgFrame.cpp rename : image/src/imgFrame.h => image/imgFrame.h rename : image/src/imgLoader.cpp => image/imgLoader.cpp rename : image/src/imgLoader.h => image/imgLoader.h rename : image/src/imgRequest.cpp => image/imgRequest.cpp rename : image/src/imgRequest.h => image/imgRequest.h rename : image/src/imgRequestProxy.cpp => image/imgRequestProxy.cpp rename : image/src/imgRequestProxy.h => image/imgRequestProxy.h rename : image/src/imgTools.cpp => image/imgTools.cpp rename : image/src/imgTools.h => image/imgTools.h
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#ifndef mozilla_image_SVGDocumentWrapper_h
#define mozilla_image_SVGDocumentWrapper_h
#include "mozilla/Attributes.h"
#include "nsCOMPtr.h"
#include "nsIStreamListener.h"
#include "nsIObserver.h"
#include "nsIContentViewer.h"
#include "nsWeakReference.h"
#include "nsSize.h"
class nsIRequest;
class nsILoadGroup;
class nsIFrame;
#define OBSERVER_SVC_CID "@mozilla.org/observer-service;1"
namespace mozilla {
class PresShell;
namespace dom {
class SVGSVGElement;
class SVGDocument;
} // namespace dom
namespace image {
class AutoRestoreSVGState;
class SVGDocumentWrapper final : public nsIStreamListener,
public nsIObserver,
public nsSupportsWeakReference {
public:
SVGDocumentWrapper();
NS_DECL_ISUPPORTS
NS_DECL_NSISTREAMLISTENER
NS_DECL_NSIREQUESTOBSERVER
NS_DECL_NSIOBSERVER
enum Dimension { eWidth, eHeight };
/**
* Returns the wrapped document, or nullptr on failure. (No AddRef.)
*/
mozilla::dom::SVGDocument* GetDocument();
/**
* Returns the root <svg> element for the wrapped document, or nullptr on
* failure.
*/
mozilla::dom::SVGSVGElement* GetRootSVGElem();
/**
* Returns the root nsIFrame* for the wrapped document, or nullptr on failure.
*
* @return the root nsIFrame* for the wrapped document, or nullptr on failure.
*/
nsIFrame* GetRootLayoutFrame();
/**
* Returns the mozilla::PresShell for the wrapped document.
*/
inline mozilla::PresShell* GetPresShell() { return mViewer->GetPresShell(); }
/**
* Modifier to update the viewport dimensions of the wrapped document. This
* method performs a synchronous "FlushType::Layout" on the wrapped document,
* since a viewport-change affects layout.
*
* @param aViewportSize The new viewport dimensions.
*/
void UpdateViewportBounds(const nsIntSize& aViewportSize);
/**
* If an SVG image's helper document has a pending notification for an
* override on the root node's "preserveAspectRatio" attribute, then this
* method will flush that notification so that the image can paint correctly.
* (First, though, it sets the mIgnoreInvalidation flag so that we won't
* notify the image's observers and trigger unwanted repaint-requests.)
*/
void FlushImageTransformInvalidation();
/**
* Returns a bool indicating whether the document has any SMIL animations.
*
* @return true if the document has any SMIL animations. Else, false.
*/
bool IsAnimated();
/**
* Indicates whether we should currently ignore rendering invalidations sent
* from the wrapped SVG doc.
*
* @return true if we should ignore invalidations sent from this SVG doc.
*/
bool ShouldIgnoreInvalidation() { return mIgnoreInvalidation; }
/**
* Returns a bool indicating whether the document is currently drawing.
*
* @return true if the document is drawing. Else, false.
*/
bool IsDrawing() const { return mIsDrawing; }
/**
* Methods to control animation.
*/
void StartAnimation();
void StopAnimation();
void ResetAnimation();
float GetCurrentTimeAsFloat();
void SetCurrentTime(float aTime);
void TickRefreshDriver();
/**
* Force a layout flush of the underlying SVG document.
*/
void FlushLayout();
private:
friend class AutoRestoreSVGState;
~SVGDocumentWrapper();
nsresult SetupViewer(nsIRequest* aRequest, nsIContentViewer** aViewer,
nsILoadGroup** aLoadGroup);
void DestroyViewer();
void RegisterForXPCOMShutdown();
void UnregisterForXPCOMShutdown();
nsCOMPtr<nsIContentViewer> mViewer;
nsCOMPtr<nsILoadGroup> mLoadGroup;
nsCOMPtr<nsIStreamListener> mListener;
bool mIgnoreInvalidation;
bool mRegisteredForXPCOMShutdown;
bool mIsDrawing;
};
} // namespace image
} // namespace mozilla
/**
* Casting SVGDocumentWrapper to nsISupports is ambiguous. This method handles
* that.
*/
inline nsISupports* ToSupports(mozilla::image::SVGDocumentWrapper* p) {
return NS_ISUPPORTS_CAST(nsSupportsWeakReference*, p);
}
Bug 1038536 - Flatten image/src/ directory. r=seth --HG-- rename : image/src/BMPFileHeaders.h => image/BMPFileHeaders.h rename : image/src/ClippedImage.cpp => image/ClippedImage.cpp rename : image/src/ClippedImage.h => image/ClippedImage.h rename : image/src/DecodePool.cpp => image/DecodePool.cpp rename : image/src/DecodePool.h => image/DecodePool.h rename : image/src/Decoder.cpp => image/Decoder.cpp rename : image/src/Decoder.h => image/Decoder.h rename : image/src/Downscaler.cpp => image/Downscaler.cpp rename : image/src/Downscaler.h => image/Downscaler.h rename : image/src/DynamicImage.cpp => image/DynamicImage.cpp rename : image/src/DynamicImage.h => image/DynamicImage.h rename : image/src/FrameAnimator.cpp => image/FrameAnimator.cpp rename : image/src/FrameAnimator.h => image/FrameAnimator.h rename : image/src/FrozenImage.cpp => image/FrozenImage.cpp rename : image/src/FrozenImage.h => image/FrozenImage.h rename : image/src/ICOFileHeaders.h => image/ICOFileHeaders.h rename : image/src/IProgressObserver.h => image/IProgressObserver.h rename : image/src/Image.cpp => image/Image.cpp rename : image/src/Image.h => image/Image.h rename : image/src/ImageFactory.cpp => image/ImageFactory.cpp rename : image/src/ImageFactory.h => image/ImageFactory.h rename : image/src/ImageMetadata.cpp => image/ImageMetadata.cpp rename : image/src/ImageMetadata.h => image/ImageMetadata.h rename : image/src/ImageOps.cpp => image/ImageOps.cpp rename : image/src/ImageOps.h => image/ImageOps.h rename : image/src/ImageRegion.h => image/ImageRegion.h rename : image/src/ImageURL.h => image/ImageURL.h rename : image/src/ImageWrapper.cpp => image/ImageWrapper.cpp rename : image/src/ImageWrapper.h => image/ImageWrapper.h rename : image/src/MultipartImage.cpp => image/MultipartImage.cpp rename : image/src/MultipartImage.h => image/MultipartImage.h rename : image/src/Orientation.h => image/Orientation.h rename : image/src/OrientedImage.cpp => image/OrientedImage.cpp rename : image/src/OrientedImage.h => image/OrientedImage.h rename : image/src/ProgressTracker.cpp => image/ProgressTracker.cpp rename : image/src/ProgressTracker.h => image/ProgressTracker.h rename : image/src/RasterImage.cpp => image/RasterImage.cpp rename : image/src/RasterImage.h => image/RasterImage.h rename : image/src/SVGDocumentWrapper.cpp => image/SVGDocumentWrapper.cpp rename : image/src/SVGDocumentWrapper.h => image/SVGDocumentWrapper.h rename : image/src/ScriptedNotificationObserver.cpp => image/ScriptedNotificationObserver.cpp rename : image/src/ScriptedNotificationObserver.h => image/ScriptedNotificationObserver.h rename : image/src/ShutdownTracker.cpp => image/ShutdownTracker.cpp rename : image/src/ShutdownTracker.h => image/ShutdownTracker.h rename : image/src/SourceBuffer.cpp => image/SourceBuffer.cpp rename : image/src/SourceBuffer.h => image/SourceBuffer.h rename : image/src/SurfaceCache.cpp => image/SurfaceCache.cpp rename : image/src/SurfaceCache.h => image/SurfaceCache.h rename : image/src/VectorImage.cpp => image/VectorImage.cpp rename : image/src/VectorImage.h => image/VectorImage.h rename : image/src/imgFrame.cpp => image/imgFrame.cpp rename : image/src/imgFrame.h => image/imgFrame.h rename : image/src/imgLoader.cpp => image/imgLoader.cpp rename : image/src/imgLoader.h => image/imgLoader.h rename : image/src/imgRequest.cpp => image/imgRequest.cpp rename : image/src/imgRequest.h => image/imgRequest.h rename : image/src/imgRequestProxy.cpp => image/imgRequestProxy.cpp rename : image/src/imgRequestProxy.h => image/imgRequestProxy.h rename : image/src/imgTools.cpp => image/imgTools.cpp rename : image/src/imgTools.h => image/imgTools.h
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#endif // mozilla_image_SVGDocumentWrapper_h