1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/generic/nsBulletFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,142 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* rendering object for list-item bullets */
1.10 +
1.11 +#ifndef nsBulletFrame_h___
1.12 +#define nsBulletFrame_h___
1.13 +
1.14 +#include "mozilla/Attributes.h"
1.15 +#include "nsFrame.h"
1.16 +
1.17 +#include "imgINotificationObserver.h"
1.18 +
1.19 +class imgIContainer;
1.20 +class imgRequestProxy;
1.21 +
1.22 +class nsBulletFrame;
1.23 +
1.24 +class nsBulletListener : public imgINotificationObserver
1.25 +{
1.26 +public:
1.27 + nsBulletListener();
1.28 + virtual ~nsBulletListener();
1.29 +
1.30 + NS_DECL_ISUPPORTS
1.31 + NS_DECL_IMGINOTIFICATIONOBSERVER
1.32 +
1.33 + void SetFrame(nsBulletFrame *frame) { mFrame = frame; }
1.34 +
1.35 +private:
1.36 + nsBulletFrame *mFrame;
1.37 +};
1.38 +
1.39 +/**
1.40 + * A simple class that manages the layout and rendering of html bullets.
1.41 + * This class also supports the CSS list-style properties.
1.42 + */
1.43 +class nsBulletFrame : public nsFrame {
1.44 +public:
1.45 + NS_DECL_FRAMEARENA_HELPERS
1.46 +#ifdef DEBUG
1.47 + NS_DECL_QUERYFRAME_TARGET(nsBulletFrame)
1.48 + NS_DECL_QUERYFRAME
1.49 +#endif
1.50 +
1.51 + nsBulletFrame(nsStyleContext* aContext)
1.52 + : nsFrame(aContext)
1.53 + {
1.54 + }
1.55 + virtual ~nsBulletFrame();
1.56 +
1.57 + NS_IMETHOD Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData);
1.58 +
1.59 + // nsIFrame
1.60 + virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
1.61 + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.62 + const nsRect& aDirtyRect,
1.63 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.64 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.65 + virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE;
1.66 +#ifdef DEBUG_FRAME_DUMP
1.67 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
1.68 +#endif
1.69 +
1.70 + // nsIHTMLReflow
1.71 + virtual nsresult Reflow(nsPresContext* aPresContext,
1.72 + nsHTMLReflowMetrics& aMetrics,
1.73 + const nsHTMLReflowState& aReflowState,
1.74 + nsReflowStatus& aStatus) MOZ_OVERRIDE;
1.75 + virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.76 + virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
1.77 +
1.78 + // nsBulletFrame
1.79 + int32_t SetListItemOrdinal(int32_t aNextOrdinal, bool* aChanged,
1.80 + int32_t aIncrement);
1.81 +
1.82 +
1.83 + /* get list item text, without '.' */
1.84 + static void AppendCounterText(int32_t aListStyleType,
1.85 + int32_t aOrdinal,
1.86 + nsString& aResult,
1.87 + bool& aIsRTL);
1.88 +
1.89 + /* get suffix of list item */
1.90 + static void GetListItemSuffix(int32_t aListStyleType,
1.91 + nsString& aResult,
1.92 + bool& aSuppressPadding);
1.93 +
1.94 + /* get list item text, with '.' */
1.95 + void GetListItemText(const nsStyleList& aStyleList, nsString& aResult);
1.96 +
1.97 + void PaintBullet(nsRenderingContext& aRenderingContext, nsPoint aPt,
1.98 + const nsRect& aDirtyRect, uint32_t aFlags);
1.99 +
1.100 + virtual bool IsEmpty() MOZ_OVERRIDE;
1.101 + virtual bool IsSelfEmpty() MOZ_OVERRIDE;
1.102 + virtual nscoord GetBaseline() const MOZ_OVERRIDE;
1.103 +
1.104 + float GetFontSizeInflation() const;
1.105 + bool HasFontSizeInflation() const {
1.106 + return (GetStateBits() & BULLET_FRAME_HAS_FONT_INFLATION) != 0;
1.107 + }
1.108 + void SetFontSizeInflation(float aInflation);
1.109 +
1.110 + int32_t GetOrdinal() { return mOrdinal; }
1.111 +
1.112 + already_AddRefed<imgIContainer> GetImage() const;
1.113 +
1.114 +protected:
1.115 + nsresult OnStartContainer(imgIRequest *aRequest, imgIContainer *aImage);
1.116 +
1.117 + void GetDesiredSize(nsPresContext* aPresContext,
1.118 + nsRenderingContext *aRenderingContext,
1.119 + nsHTMLReflowMetrics& aMetrics,
1.120 + float aFontSizeInflation);
1.121 +
1.122 + void GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup);
1.123 +
1.124 + nsMargin mPadding;
1.125 + nsRefPtr<imgRequestProxy> mImageRequest;
1.126 + nsRefPtr<nsBulletListener> mListener;
1.127 +
1.128 + nsSize mIntrinsicSize;
1.129 + int32_t mOrdinal;
1.130 + bool mTextIsRTL;
1.131 +
1.132 + // If set to true, any padding of bullet defined in the UA style sheet will
1.133 + // be suppressed. This is used for some CJK numbering styles where extra
1.134 + // space after the suffix is not desired. Note that, any author-specified
1.135 + // padding overriding the default style will NOT be suppressed.
1.136 + bool mSuppressPadding;
1.137 +
1.138 +private:
1.139 +
1.140 + // This is a boolean flag indicating whether or not the current image request
1.141 + // has been registered with the refresh driver.
1.142 + bool mRequestRegistered;
1.143 +};
1.144 +
1.145 +#endif /* nsBulletFrame_h___ */
