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b6318acbab
Summary: The biggest change is that (1) the image proxy/observer code from the Image component has been generalized, (2) the four image props for the Slider component are fully supported, (3) a handful of props that were ignored or buggy on iOS now perform as expected. Reviewed By: shergin Differential Revision: D13954892 fbshipit-source-id: bec8ad3407c39a1cb186d9541a73b509dccc92ce
96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
/**
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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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#include "SliderShadowNode.h"
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#include <react/components/slider/SliderLocalData.h>
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#include <react/components/slider/SliderShadowNode.h>
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#include <react/core/LayoutContext.h>
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namespace facebook {
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namespace react {
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extern const char SliderComponentName[] = "Slider";
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void SliderShadowNode::setImageManager(const SharedImageManager &imageManager) {
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ensureUnsealed();
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imageManager_ = imageManager;
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}
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void SliderShadowNode::updateLocalData() {
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const auto &newTrackImageSource = getTrackImageSource();
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const auto &newMinimumTrackImageSource = getMinimumTrackImageSource();
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const auto &newMaximumTrackImageSource = getMaximumTrackImageSource();
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const auto &newThumbImageSource = getThumbImageSource();
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const auto &localData = getLocalData();
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if (localData) {
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assert(std::dynamic_pointer_cast<const SliderLocalData>(localData));
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auto currentLocalData =
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std::static_pointer_cast<const SliderLocalData>(localData);
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auto trackImageSource = currentLocalData->getTrackImageSource();
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auto minimumTrackImageSource =
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currentLocalData->getMinimumTrackImageSource();
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auto maximumTrackImageSource =
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currentLocalData->getMaximumTrackImageSource();
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auto thumbImageSource = currentLocalData->getThumbImageSource();
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bool anyChanged = newTrackImageSource != trackImageSource ||
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newMinimumTrackImageSource != minimumTrackImageSource ||
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newMaximumTrackImageSource != maximumTrackImageSource ||
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newThumbImageSource != thumbImageSource;
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if (!anyChanged) {
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return;
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}
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}
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// Now we are about to mutate the Shadow Node.
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ensureUnsealed();
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// It is not possible to copy or move image requests from SliderLocalData,
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// so instead we recreate any image requests (that may already be in-flight?)
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// TODO: check if multiple requests are cached or if it's a net loss
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const auto &newLocalData = std::make_shared<SliderLocalData>(
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newTrackImageSource,
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imageManager_->requestImage(newTrackImageSource),
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newMinimumTrackImageSource,
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imageManager_->requestImage(newMinimumTrackImageSource),
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newMaximumTrackImageSource,
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imageManager_->requestImage(newMaximumTrackImageSource),
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newThumbImageSource,
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imageManager_->requestImage(newThumbImageSource));
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setLocalData(newLocalData);
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}
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ImageSource SliderShadowNode::getTrackImageSource() const {
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return getProps()->trackImage;
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}
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ImageSource SliderShadowNode::getMinimumTrackImageSource() const {
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return getProps()->minimumTrackImage;
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}
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ImageSource SliderShadowNode::getMaximumTrackImageSource() const {
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return getProps()->maximumTrackImage;
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}
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ImageSource SliderShadowNode::getThumbImageSource() const {
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return getProps()->thumbImage;
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}
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#pragma mark - LayoutableShadowNode
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void SliderShadowNode::layout(LayoutContext layoutContext) {
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updateLocalData();
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ConcreteViewShadowNode::layout(layoutContext);
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}
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} // namespace react
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} // namespace facebook
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