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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 /layout/generic/nsBulletFrame.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/generic/nsBulletFrame.h')
-rw-r--r--layout/generic/nsBulletFrame.h150
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diff --git a/layout/generic/nsBulletFrame.h b/layout/generic/nsBulletFrame.h
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+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+/* rendering object for list-item bullets */
+
+#ifndef nsBulletFrame_h___
+#define nsBulletFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsFrame.h"
+
+#include "imgIContainer.h"
+#include "imgINotificationObserver.h"
+#include "imgIOnloadBlocker.h"
+
+class imgIContainer;
+class imgRequestProxy;
+
+class nsBulletFrame;
+
+class nsBulletListener final : public imgINotificationObserver,
+ public imgIOnloadBlocker
+{
+public:
+ nsBulletListener();
+
+ NS_DECL_ISUPPORTS
+ NS_DECL_IMGINOTIFICATIONOBSERVER
+ NS_DECL_IMGIONLOADBLOCKER
+
+ void SetFrame(nsBulletFrame *frame) { mFrame = frame; }
+
+private:
+ virtual ~nsBulletListener();
+
+ nsBulletFrame *mFrame;
+};
+
+/**
+ * A simple class that manages the layout and rendering of html bullets.
+ * This class also supports the CSS list-style properties.
+ */
+class nsBulletFrame final : public nsFrame {
+ typedef mozilla::image::DrawResult DrawResult;
+
+public:
+ NS_DECL_FRAMEARENA_HELPERS
+#ifdef DEBUG
+ NS_DECL_QUERYFRAME_TARGET(nsBulletFrame)
+ NS_DECL_QUERYFRAME
+#endif
+
+ explicit nsBulletFrame(nsStyleContext* aContext)
+ : nsFrame(aContext)
+ , mPadding(GetWritingMode())
+ , mIntrinsicSize(GetWritingMode())
+ , mRequestRegistered(false)
+ , mBlockingOnload(false)
+ { }
+ virtual ~nsBulletFrame();
+
+ NS_IMETHOD Notify(imgIRequest* aRequest, int32_t aType, const nsIntRect* aData);
+ NS_IMETHOD BlockOnload(imgIRequest* aRequest);
+ NS_IMETHOD UnblockOnload(imgIRequest* aRequest);
+
+ // nsIFrame
+ virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+ virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+ const nsRect& aDirtyRect,
+ const nsDisplayListSet& aLists) override;
+ virtual nsIAtom* GetType() const override;
+ virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+ virtual void Reflow(nsPresContext* aPresContext,
+ ReflowOutput& aMetrics,
+ const ReflowInput& aReflowInput,
+ nsReflowStatus& aStatus) override;
+ virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
+ virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
+ void AddInlineMinISize(nsRenderingContext* aRenderingContext,
+ nsIFrame::InlineMinISizeData* aData) override;
+ void AddInlinePrefISize(nsRenderingContext* aRenderingContext,
+ nsIFrame::InlinePrefISizeData* aData) override;
+
+ // nsBulletFrame
+ int32_t SetListItemOrdinal(int32_t aNextOrdinal, bool* aChanged,
+ int32_t aIncrement);
+
+ /* get list item text, with prefix & suffix */
+ void GetListItemText(nsAString& aResult);
+
+ void GetSpokenText(nsAString& aText);
+
+ DrawResult PaintBullet(nsRenderingContext& aRenderingContext, nsPoint aPt,
+ const nsRect& aDirtyRect, uint32_t aFlags,
+ bool aDisableSubpixelAA);
+
+ virtual bool IsEmpty() override;
+ virtual bool IsSelfEmpty() override;
+ virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode) const override;
+
+ float GetFontSizeInflation() const;
+ bool HasFontSizeInflation() const {
+ return (GetStateBits() & BULLET_FRAME_HAS_FONT_INFLATION) != 0;
+ }
+ void SetFontSizeInflation(float aInflation);
+
+ int32_t GetOrdinal() { return mOrdinal; }
+
+ already_AddRefed<imgIContainer> GetImage() const;
+
+protected:
+ nsresult OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage);
+
+ void AppendSpacingToPadding(nsFontMetrics* aFontMetrics,
+ mozilla::LogicalMargin* aPadding);
+ void GetDesiredSize(nsPresContext* aPresContext,
+ nsRenderingContext *aRenderingContext,
+ ReflowOutput& aMetrics,
+ float aFontSizeInflation,
+ mozilla::LogicalMargin* aPadding);
+
+ void GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup);
+ nsIDocument* GetOurCurrentDoc() const;
+
+ mozilla::LogicalMargin mPadding;
+ RefPtr<imgRequestProxy> mImageRequest;
+ RefPtr<nsBulletListener> mListener;
+
+ mozilla::LogicalSize mIntrinsicSize;
+ int32_t mOrdinal;
+
+private:
+ void RegisterImageRequest(bool aKnownToBeAnimated);
+ void DeregisterAndCancelImageRequest();
+
+ // This is a boolean flag indicating whether or not the current image request
+ // has been registered with the refresh driver.
+ bool mRequestRegistered : 1;
+
+ // Whether we're currently blocking onload.
+ bool mBlockingOnload : 1;
+};
+
+#endif /* nsBulletFrame_h___ */