amis-rpc-design/node_modules/react-native/ReactCommon/react/renderer/components/view/YogaStylablePropsMapBuffer.cpp
2023-10-07 19:42:30 +08:00

88 lines
2.4 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#ifdef ANDROID
#include "ViewProps.h"
#include "ViewPropsMapBuffer.h"
#include "viewPropConversions.h"
#include <react/renderer/mapbuffer/MapBufferBuilder.h>
namespace facebook {
namespace react {
MapBuffer convertBorderWidths(YGStyle::Edges const &border) {
MapBufferBuilder builder(7);
putOptionalFloat(
builder, EDGE_TOP, optionalFloatFromYogaValue(border[YGEdgeTop]));
putOptionalFloat(
builder, EDGE_RIGHT, optionalFloatFromYogaValue(border[YGEdgeRight]));
putOptionalFloat(
builder, EDGE_BOTTOM, optionalFloatFromYogaValue(border[YGEdgeBottom]));
putOptionalFloat(
builder, EDGE_LEFT, optionalFloatFromYogaValue(border[YGEdgeLeft]));
putOptionalFloat(
builder, EDGE_START, optionalFloatFromYogaValue(border[YGEdgeStart]));
putOptionalFloat(
builder, EDGE_END, optionalFloatFromYogaValue(border[YGEdgeEnd]));
putOptionalFloat(
builder, EDGE_ALL, optionalFloatFromYogaValue(border[YGEdgeAll]));
return builder.build();
}
// TODO: Currently unsupported: nextFocusForward/Left/Up/Right/Down
void YogaStylableProps::propsDiffMapBuffer(
Props const *oldPropsPtr,
MapBufferBuilder &builder) const {
// Call with default props if necessary
if (oldPropsPtr == nullptr) {
YogaStylableProps defaultProps{};
propsDiffMapBuffer(&defaultProps, builder);
return;
}
// Delegate to base classes
Props::propsDiffMapBuffer(oldPropsPtr, builder);
YogaStylableProps const &oldProps =
*(static_cast<const YogaStylableProps *>(oldPropsPtr));
YogaStylableProps const &newProps = *this;
if (oldProps.yogaStyle != newProps.yogaStyle) {
auto const &oldStyle = oldProps.yogaStyle;
auto const &newStyle = newProps.yogaStyle;
if (!(oldStyle.border() == newStyle.border())) {
builder.putMapBuffer(
YG_BORDER_WIDTH, convertBorderWidths(newStyle.border()));
}
if (oldStyle.overflow() != newStyle.overflow()) {
int value;
switch (newStyle.overflow()) {
case YGOverflowVisible:
value = 0;
break;
case YGOverflowHidden:
value = 1;
break;
case YGOverflowScroll:
value = 2;
break;
}
builder.putInt(YG_OVERFLOW, value);
}
}
}
} // namespace react
} // namespace facebook
#endif