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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/html/ImageDocument.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/dom/html/ImageDocument.h b/dom/html/ImageDocument.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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_dom_ImageDocument_h
+#define mozilla_dom_ImageDocument_h
+
+#include "mozilla/Attributes.h"
+#include "imgINotificationObserver.h"
+#include "MediaDocument.h"
+#include "nsIDOMEventListener.h"
+#include "nsIImageDocument.h"
+
+namespace mozilla {
+namespace dom {
+
+class ImageDocument final : public MediaDocument,
+ public nsIImageDocument,
+ public imgINotificationObserver,
+ public nsIDOMEventListener
+{
+public:
+ ImageDocument();
+
+ NS_DECL_ISUPPORTS_INHERITED
+
+ virtual nsresult Init() override;
+
+ virtual nsresult StartDocumentLoad(const char* aCommand,
+ nsIChannel* aChannel,
+ nsILoadGroup* aLoadGroup,
+ nsISupports* aContainer,
+ nsIStreamListener** aDocListener,
+ bool aReset = true,
+ nsIContentSink* aSink = nullptr) override;
+
+ virtual void SetScriptGlobalObject(nsIScriptGlobalObject* aScriptGlobalObject) override;
+ virtual void Destroy() override;
+ virtual void OnPageShow(bool aPersisted,
+ EventTarget* aDispatchStartTarget) override;
+
+ NS_DECL_NSIIMAGEDOCUMENT
+ NS_DECL_IMGINOTIFICATIONOBSERVER
+
+ // nsIDOMEventListener
+ NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) override;
+
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ImageDocument, MediaDocument)
+
+ friend class ImageListener;
+
+ void DefaultCheckOverflowing() { CheckOverflowing(mResizeImageByDefault); }
+
+ // WebIDL API
+ virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+ override;
+
+ bool ImageIsOverflowing() const
+ {
+ return mImageIsOverflowingHorizontally || mImageIsOverflowingVertically;
+ }
+ bool ImageIsResized() const
+ {
+ return mImageIsResized;
+ }
+ already_AddRefed<imgIRequest> GetImageRequest(ErrorResult& aRv);
+ void ShrinkToFit();
+ void RestoreImage();
+ void RestoreImageTo(int32_t aX, int32_t aY)
+ {
+ ScrollImageTo(aX, aY, true);
+ }
+ void ToggleImageSize();
+
+protected:
+ virtual ~ImageDocument();
+
+ virtual nsresult CreateSyntheticDocument() override;
+
+ nsresult CheckOverflowing(bool changeState);
+
+ void UpdateTitleAndCharset();
+
+ void ScrollImageTo(int32_t aX, int32_t aY, bool restoreImage);
+
+ float GetRatio() {
+ return std::min(mVisibleWidth / mImageWidth,
+ mVisibleHeight / mImageHeight);
+ }
+
+ void ResetZoomLevel();
+ float GetZoomLevel();
+
+ void UpdateSizeFromLayout();
+
+ enum eModeClasses {
+ eNone,
+ eShrinkToFit,
+ eOverflowingVertical, // And maybe horizontal too.
+ eOverflowingHorizontalOnly
+ };
+ void SetModeClass(eModeClasses mode);
+
+ nsresult OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage);
+ nsresult OnLoadComplete(imgIRequest* aRequest, nsresult aStatus);
+ void OnHasTransparency();
+
+ nsCOMPtr<Element> mImageContent;
+
+ float mVisibleWidth;
+ float mVisibleHeight;
+ int32_t mImageWidth;
+ int32_t mImageHeight;
+
+ bool mResizeImageByDefault;
+ bool mClickResizingEnabled;
+ bool mImageIsOverflowingHorizontally;
+ bool mImageIsOverflowingVertically;
+ // mImageIsResized is true if the image is currently resized
+ bool mImageIsResized;
+ // mShouldResize is true if the image should be resized when it doesn't fit
+ // mImageIsResized cannot be true when this is false, but mImageIsResized
+ // can be false when this is true
+ bool mShouldResize;
+ bool mFirstResize;
+ // mObservingImageLoader is true while the observer is set.
+ bool mObservingImageLoader;
+
+ float mOriginalZoomLevel;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif /* mozilla_dom_ImageDocument_h */