react-native/React/Views/RCTRootShadowView.h
Valentin Shergin ba170ec78c Simplifying mess with RCTRootViewSizeFlexibility
Summary:
Now things look much more clear, I hope.
This diff:
 * Introduces new property of `RCTRootShadowView` `availableSize` which represents exactly what we transmit to layout engine;
 * Illuminates conflict between logical `availableSize` and explicitly specified size of DOM node (current `size`);
 * Splits overcomplicated `setSize:forView:` method into two unrelated ones;
 * Changes actual values of `RCTRootViewSizeFlexibility` enum constants for simpler usage;
 * Completely removes `sizeFlexibility` concept from `RCTRootShadowView` (in favor of special values of `availableSize`);
 * Makes the code clearer finally.

This is beginning of big effort to improve `RCTRootView` and co.

Reviewed By: mmmulani

Differential Revision: D4562834

fbshipit-source-id: f5baaf2859ea430d44645a6b5d35f222f15a668e
2017-02-19 23:19:47 -08:00

35 lines
1013 B
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <React/RCTShadowView.h>
#import <yoga/YGEnums.h>
@interface RCTRootShadowView : RCTShadowView
/**
* Available size to layout all views.
* Defaults to {INFINITY, INFINITY}
*/
@property (nonatomic, assign) CGSize availableSize;
/**
* Layout direction (LTR or RTL) inherited from native environment and
* is using as a base direction value in layout engine.
* Defaults to value inferred from current locale.
*/
@property (nonatomic, assign) YGDirection baseDirection;
/**
* Calculate all views whose frame needs updating after layout has been calculated.
* Returns a set contains the shadowviews that need updating.
*/
- (NSSet<RCTShadowView *> *)collectViewsWithUpdatedFrames;
@end