nsChangeHint.h File Reference

#include "prtypes.h"

Include dependency graph for nsChangeHint.h:

This graph shows which files directly or indirectly include this file:

Defines
#define	NS_STYLE_HINT_NONE   nsChangeHint(0)
#define	NS_STYLE_HINT_VISUAL   nsChangeHint(nsChangeHint_RepaintFrame | nsChangeHint_SyncFrameView)
#define	nsChangeHint_ReflowFrame
#define	NS_STYLE_HINT_REFLOW   nsChangeHint(NS_STYLE_HINT_VISUAL | nsChangeHint_ReflowFrame)
#define	NS_STYLE_HINT_FRAMECHANGE   nsChangeHint(NS_STYLE_HINT_REFLOW | nsChangeHint_ReconstructFrame)
Enumerations
enum	nsChangeHint {   nsChangeHint_RepaintFrame = 0x01, nsChangeHint_NeedReflow = 0x02, nsChangeHint_ClearAncestorIntrinsics = 0x04, nsChangeHint_ClearDescendantIntrinsics = 0x08,   nsChangeHint_NeedDirtyReflow = 0x10, nsChangeHint_SyncFrameView = 0x20, nsChangeHint_UpdateCursor = 0x40, nsChangeHint_UpdateEffects = 0x80,   nsChangeHint_UpdateOpacityLayer = 0x100, nsChangeHint_UpdateTransformLayer = 0x200, nsChangeHint_ReconstructFrame = 0x400 }
enum	nsRestyleHint { eRestyle_Self = 0x1, eRestyle_Subtree = 0x2, eRestyle_LaterSiblings = 0x4 }
	|nsRestyleHint| is a bitfield for the result of |HasStateDependentStyle| and |HasAttributeDependentStyle|. More...
Functions
void	operator< (nsChangeHint s1, nsChangeHint s2)
void	operator> (nsChangeHint s1, nsChangeHint s2)
void	operator!= (nsChangeHint s1, nsChangeHint s2)
void	operator== (nsChangeHint s1, nsChangeHint s2)
void	operator<= (nsChangeHint s1, nsChangeHint s2)
void	operator>= (nsChangeHint s1, nsChangeHint s2)
nsChangeHint	NS_CombineHint (nsChangeHint aH1, nsChangeHint aH2)
nsChangeHint	NS_SubtractHint (nsChangeHint aH1, nsChangeHint aH2)
PRBool	NS_UpdateHint (nsChangeHint &aDest, nsChangeHint aSrc)
PRBool	NS_IsHintSubset (nsChangeHint aSubset, nsChangeHint aSuperSet)

---

Define Documentation

#define NS_STYLE_HINT_FRAMECHANGE   nsChangeHint(NS_STYLE_HINT_REFLOW | nsChangeHint_ReconstructFrame)

#define NS_STYLE_HINT_NONE   nsChangeHint(0)

#define NS_STYLE_HINT_REFLOW   nsChangeHint(NS_STYLE_HINT_VISUAL | nsChangeHint_ReflowFrame)

#define NS_STYLE_HINT_VISUAL   nsChangeHint(nsChangeHint_RepaintFrame | nsChangeHint_SyncFrameView)

#define nsChangeHint_ReflowFrame

Value:

nsChangeHint(nsChangeHint_NeedReflow |                \
               nsChangeHint_ClearAncestorIntrinsics |   \
               nsChangeHint_ClearDescendantIntrinsics | \
               nsChangeHint_NeedDirtyReflow)

---

Enumeration Type Documentation

enum nsChangeHint

Enumerator:

nsChangeHint_RepaintFrame
nsChangeHint_NeedReflow
nsChangeHint_ClearAncestorIntrinsics
nsChangeHint_ClearDescendantIntrinsics
nsChangeHint_NeedDirtyReflow
nsChangeHint_SyncFrameView
nsChangeHint_UpdateCursor
nsChangeHint_UpdateEffects	SVG filter/mask/clip effects need to be recomputed because the URI in the filter/mask/clip-path property has changed. This wipes out cached nsSVGPropertyBase and subclasses which hold a reference to the element referenced by the URI, and a mutation observer for the DOM subtree rooted at that element. Also, for filters they store a bounding-box for the filter result so that if the filter changes we can invalidate the old covered area.
nsChangeHint_UpdateOpacityLayer	Visual change only, but the change can be handled entirely by updating the layer(s) for the frame.
nsChangeHint_UpdateTransformLayer
nsChangeHint_ReconstructFrame

enum nsRestyleHint

|nsRestyleHint| is a bitfield for the result of |HasStateDependentStyle| and |HasAttributeDependentStyle|.

When no restyling is necessary, use |nsRestyleHint(0)|.

Enumerator:

eRestyle_Self
eRestyle_Subtree
eRestyle_LaterSiblings

---

Function Documentation

nsChangeHint NS_CombineHint	(	nsChangeHint	aH1,
		nsChangeHint	aH2
	)			[inline]

PRBool NS_IsHintSubset	(	nsChangeHint	aSubset,
		nsChangeHint	aSuperSet
	)			[inline]

nsChangeHint NS_SubtractHint	(	nsChangeHint	aH1,
		nsChangeHint	aH2
	)			[inline]

PRBool NS_UpdateHint	(	nsChangeHint &	aDest,
		nsChangeHint	aSrc
	)			[inline]

void operator!=	(	nsChangeHint	s1,
		nsChangeHint	s2
	)			[inline]

void operator<	(	nsChangeHint	s1,
		nsChangeHint	s2
	)			[inline]

void operator<=	(	nsChangeHint	s1,
		nsChangeHint	s2
	)			[inline]

void operator==	(	nsChangeHint	s1,
		nsChangeHint	s2
	)			[inline]

void operator>	(	nsChangeHint	s1,
		nsChangeHint	s2
	)			[inline]

void operator>=	(	nsChangeHint	s1,
		nsChangeHint	s2
	)			[inline]