mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Andres Suarez
3b31e69e28
Summary: Changelog: [General] [Fixed] - License header cleanup Reviewed By: yungsters Differential Revision: D17952694 fbshipit-source-id: 17c87de7ebb271fa2ac8d00af72a4d1addef8bd0
58 lines
2.5 KiB
Java
58 lines
2.5 KiB
Java
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package com.facebook.react.uimanager;
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import android.graphics.Rect;
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import android.view.View;
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/**
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* Interface that should be implemented by {@link View} subclasses that support {@code
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* removeClippedSubviews} property. When this property is set for the {@link ViewGroup} subclass
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* it's responsible for detaching it's child views that are clipped by the view boundaries. Those
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* view boundaries should be determined based on it's parent clipping area and current view's offset
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* in parent and doesn't necessarily reflect the view visible area (in a sense of a value that
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* {@link View#getGlobalVisibleRect} may return). In order to determine the clipping rect for
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* current view helper method {@link ReactClippingViewGroupHelper#calculateClippingRect} can be used
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* that takes into account parent view settings.
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*/
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public interface ReactClippingViewGroup {
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/**
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* Notify view that clipping area may have changed and it should recalculate the list of children
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* that should be attached/detached. This method should be called only when property {@code
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* removeClippedSubviews} is set to {@code true} on a view.
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*
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* <p>CAUTION: Views are responsible for calling {@link #updateClippingRect} on it's children.
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* This should happen if child implement {@link ReactClippingViewGroup}, return true from {@link
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* #getRemoveClippedSubviews} and clipping rect change of the current view may affect clipping
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* rect of this child.
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*/
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void updateClippingRect();
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/**
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* Get rectangular bounds to which view is currently clipped to. Called only on views that has set
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* {@code removeCLippedSubviews} property value to {@code true}.
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*
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* @param outClippingRect output clipping rect should be written to this object.
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*/
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void getClippingRect(Rect outClippingRect);
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/**
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* Sets property {@code removeClippedSubviews} as a result of property update in JS. Should be
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* called only from @{link ViewManager#updateView} method.
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*
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* <p>Helper method {@link ReactClippingViewGroupHelper#applyRemoveClippedSubviewsProperty} may be
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* used by {@link ViewManager} subclass to apply this property based on property update map {@link
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* ReactStylesDiffMap}.
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*/
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void setRemoveClippedSubviews(boolean removeClippedSubviews);
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/** Get the current value of {@code removeClippedSubviews} property. */
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boolean getRemoveClippedSubviews();
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}
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