com.facebook.rendercore

Class MountState

java.lang.Object

com.facebook.rendercore.MountState

All Implemented Interfaces:

MountDelegateTarget

public class MountState
extends java.lang.Object
implements MountDelegateTarget

Field Summary

Fields

Modifier and Type	Field and Description
static long	ROOT_HOST_ID

Constructor Summary

Constructors

Constructor and Description
MountState(Host rootHost)
MountState(Host rootHost, Systracer tracer) This constructor allows the outer framework using RenderCore (e.g.

Method Summary

Modifier and Type	Method and Description
void	attach() This is called when the MountItems mounted on this MountState need to be re-bound with the same RenderUnit.
void	detach() Unbinds all the MountItems currently mounted on this MountState.
java.lang.Object	getContentAt(int position)
java.lang.Object	getContentById(long id)
java.util.ArrayList<Host>	getHosts()
MountDelegate	getMountDelegate()
MountItem	getMountItemAt(int position)
int	getMountItemCount() Returns the total number mount items currently mounted.
int	getRenderUnitCount() Returns the total number render units in the MountState; mounted and unmounted.
Host	getRootHost()
boolean	isRootItem(int position)
void	mount(RenderTree renderTree) Mount the layoutState on the pre-set HostView.
boolean	needsRemount() True if we have manually unmounted content (e.g.
void	notifyMount(long id)
void	notifyUnmount(long id)
ExtensionState	registerMountExtension(MountExtension mountExtension) Deprecated. Only used for Litho's integration. Marked for removal.
void	removeUnmountDelegateExtension()
void	setEnsureParentMounted(boolean ensureParentMounted)
void	setUnmountDelegateExtension(UnmountDelegateExtension unmountDelegateExtension)
void	unbindMountItem(MountItem mountItem)
void	unmountAllItems()
void	unregisterAllExtensions()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ROOT_HOST_ID

public static final long ROOT_HOST_ID

See Also:

Constant Field Values

Constructor Detail

MountState

public MountState(Host rootHost)

MountState

public MountState(Host rootHost,
                  Systracer tracer)

This constructor allows the outer framework using RenderCore (e.g. Litho) to provide its own Systracer implementation so that Systrace blocks are logged consistently between the framework and the framework's usage of RenderCore.

Method Detail

setEnsureParentMounted

public void setEnsureParentMounted(boolean ensureParentMounted)

needsRemount

public boolean needsRemount()

True if we have manually unmounted content (e.g. via unmountAllItems) which means that while we may not have a new RenderTree, the mounted content does not match what the viewport for the LithoView may be.

Specified by:

needsRemount in interface MountDelegateTarget

notifyMount

public void notifyMount(long id)

Specified by:

notifyMount in interface MountDelegateTarget

notifyUnmount

public void notifyUnmount(long id)

Specified by:

notifyUnmount in interface MountDelegateTarget

mount

public void mount(RenderTree renderTree)

Mount the layoutState on the pre-set HostView.

Specified by:

mount in interface MountDelegateTarget

Parameters:

renderTree - a new RenderTree to mount

unmountAllItems

public void unmountAllItems()

Specified by:

unmountAllItems in interface MountDelegateTarget

isRootItem

public boolean isRootItem(int position)

Specified by:

isRootItem in interface MountDelegateTarget

getRootHost

public Host getRootHost()

Specified by:

getRootHost in interface MountDelegateTarget

getContentAt

public java.lang.Object getContentAt(int position)

Specified by:

getContentAt in interface MountDelegateTarget

getContentById

public java.lang.Object getContentById(long id)

Specified by:

getContentById in interface MountDelegateTarget

registerMountExtension

@Deprecated
public ExtensionState registerMountExtension(MountExtension mountExtension)

Deprecated. Only used for Litho's integration. Marked for removal.

Specified by:

registerMountExtension in interface MountDelegateTarget

Parameters:

mountExtension -

getHosts

public java.util.ArrayList<Host> getHosts()

Specified by:

getHosts in interface MountDelegateTarget

getMountItemAt

public MountItem getMountItemAt(int position)

Specified by:

getMountItemAt in interface MountDelegateTarget

getMountItemCount

public int getMountItemCount()

Description copied from interface: MountDelegateTarget

Returns the total number mount items currently mounted.

Specified by:

getMountItemCount in interface MountDelegateTarget

getRenderUnitCount

public int getRenderUnitCount()

Description copied from interface: MountDelegateTarget

Returns the total number render units in the MountState; mounted and unmounted.

Specified by:

getRenderUnitCount in interface MountDelegateTarget

setUnmountDelegateExtension

public void setUnmountDelegateExtension(UnmountDelegateExtension unmountDelegateExtension)

Specified by:

setUnmountDelegateExtension in interface MountDelegateTarget

removeUnmountDelegateExtension

public void removeUnmountDelegateExtension()

Specified by:

removeUnmountDelegateExtension in interface MountDelegateTarget

getMountDelegate

public MountDelegate getMountDelegate()

Specified by:

getMountDelegate in interface MountDelegateTarget

attach

public void attach()

This is called when the MountItems mounted on this MountState need to be re-bound with the same RenderUnit. This happens when a detach/attach happens on the root Host that owns the MountState.

Specified by:

attach in interface MountDelegateTarget

detach

public void detach()

Unbinds all the MountItems currently mounted on this MountState.

Specified by:

detach in interface MountDelegateTarget

unbindMountItem

public void unbindMountItem(MountItem mountItem)

Specified by:

unbindMountItem in interface MountDelegateTarget

unregisterAllExtensions

public void unregisterAllExtensions()

Specified by:

unregisterAllExtensions in interface MountDelegateTarget