mirror of
https://github.com/zhigang1992/react-native.git
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5c2f536e9a
Summary: @public Initial version of FlatUIImplementation lacks any primitives support (such as RCTText, RCTImageView or RCTView). This diff add the first part, RCTText (alongside with RCTVirtualText and RCTRawText). Reviewed By: sriramramani Differential Revision: D2693348
48 lines
1.3 KiB
Java
48 lines
1.3 KiB
Java
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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package com.facebook.react.flat;
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import android.text.SpannableStringBuilder;
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import com.facebook.react.uimanager.ReactShadowNode;
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/**
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* Base class for RCTVirtualText and RCTRawText.
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*/
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/* package */ abstract class FlatTextShadowNode extends FlatShadowNode {
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/**
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* Recursively visits FlatTextShadowNode and its children,
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* appending text to SpannableStringBuilder.
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*/
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protected abstract void collectText(SpannableStringBuilder builder);
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/**
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* Recursively visits FlatTextShadowNode and its children,
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* applying spans to SpannableStringBuilder.
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*/
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protected abstract void applySpans(SpannableStringBuilder builder);
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/**
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* Propagates changes up to RCTText without dirtying current node.
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*/
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protected void notifyChanged(boolean shouldRemeasure) {
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ReactShadowNode parent = getParent();
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if (parent instanceof FlatTextShadowNode) {
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((FlatTextShadowNode) parent).notifyChanged(shouldRemeasure);
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}
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}
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@Override
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public boolean isVirtual() {
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return true;
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}
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}
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