mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Denis Koroskin
59fe71caff
Summary: This diff implements ImageLoadEvents (ON_LOAD, ON_LOAD_END and ON_LOAD_START) in RCTImageView. ON_ERROR and ON_PROGRESS are easy to implement, too, but these 2 are supposed to carry extra information (error message and progress) but ImageLoadEvent doesn't support a payload yet (I'll add them in a separate patch). Reviewed By: ahmedre Differential Revision: D2824772
76 lines
2.4 KiB
Java
76 lines
2.4 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.content.res.Resources;
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import android.graphics.drawable.Drawable;
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import com.facebook.drawee.controller.AbstractDraweeControllerBuilder;
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import com.facebook.drawee.controller.ControllerListener;
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import com.facebook.drawee.generic.GenericDraweeHierarchy;
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import com.facebook.drawee.generic.GenericDraweeHierarchyBuilder;
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import com.facebook.drawee.interfaces.DraweeController;
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import com.facebook.drawee.interfaces.DraweeController;
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import com.facebook.imagepipeline.request.ImageRequest;
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import com.facebook.infer.annotation.Assertions;
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/* package */ final class DraweeRequestHelper {
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private static GenericDraweeHierarchyBuilder sHierarchyBuilder;
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private static AbstractDraweeControllerBuilder sControllerBuilder;
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/* package */ static void setResources(Resources resources) {
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sHierarchyBuilder = new GenericDraweeHierarchyBuilder(resources);
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}
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/* package */ static void setDraweeControllerBuilder(AbstractDraweeControllerBuilder builder) {
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sControllerBuilder = builder;
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}
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private final DraweeController mDraweeController;
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private int mAttachCounter;
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/* package */ DraweeRequestHelper(ImageRequest imageRequest, ControllerListener listener) {
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DraweeController controller = sControllerBuilder
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.setImageRequest(imageRequest)
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.setCallerContext(RCTImageView.getCallerContext())
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.setControllerListener(listener)
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.build();
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controller.setHierarchy(sHierarchyBuilder.build());
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mDraweeController = controller;
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}
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/* package */ void attach(FlatViewGroup.InvalidateCallback callback) {
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++mAttachCounter;
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if (mAttachCounter == 1) {
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getDrawable().setCallback(callback.get());
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mDraweeController.onAttach();
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}
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}
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/* package */ void detach() {
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--mAttachCounter;
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if (mAttachCounter == 0) {
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mDraweeController.onDetach();
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}
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}
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/* package */ GenericDraweeHierarchy getHierarchy() {
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return (GenericDraweeHierarchy) Assertions.assumeNotNull(mDraweeController.getHierarchy());
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}
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/* package */ Drawable getDrawable() {
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return getHierarchy().getTopLevelDrawable();
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}
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}
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