react-native/React/Views/RCTViewManager.h

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/**
* 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 <UIKit/UIKit.h>
#import <React/RCTBridgeModule.h>
#import <React/RCTConvert.h>
#import <React/RCTDefines.h>
#import <React/RCTEventDispatcher.h>
#import <React/RCTLog.h>
#import <React/UIView+React.h>
@class RCTBridge;
@class RCTShadowView;
@class RCTSparseArray;
@class RCTUIManager;
typedef void (^RCTViewManagerUIBlock)(RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry);
@interface RCTViewManager : NSObject <RCTBridgeModule>
/**
* The bridge can be used to access both the RCTUIIManager and the RCTEventDispatcher,
* allowing the manager (or the views that it manages) to manipulate the view
* hierarchy and send events back to the JS context.
*/
@property (nonatomic, weak) RCTBridge *bridge;
/**
* This method instantiates a native view to be managed by the module. Override
* this to return a custom view instance, which may be preconfigured with default
* properties, subviews, etc. This method will be called many times, and should
* return a fresh instance each time. The view module MUST NOT cache the returned
* view and return the same instance for subsequent calls.
*/
- (UIView *)view;
/**
* This method instantiates a shadow view to be managed by the module. If omitted,
* an ordinary RCTShadowView instance will be created, which is typically fine for
* most view types. As with the -view method, the -shadowView method should return
* a fresh instance each time it is called.
*/
- (RCTShadowView *)shadowView;
/**
* DEPRECATED: declare properties of type RCTBubblingEventBlock instead
*
* Returns an array of names of events that can be sent by native views. This
* should return bubbling, directly-dispatched event types. The event name
* should not include a prefix such as 'on' or 'top', as this will be applied
* as needed. When subscribing to the event, use the 'Captured' suffix to
* indicate the captured form, or omit the suffix for the bubbling form.
*
* Note that this method is not inherited when you subclass a view module, and
* you should not call [super customBubblingEventTypes] when overriding it.
*/
- (NSArray<NSString *> *)customBubblingEventTypes __deprecated_msg("Use RCTBubblingEventBlock props instead.");
/**
* Called to notify manager that layout has finished, in case any calculated
* properties need to be copied over from shadow view to view.
*/
- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowView:(RCTShadowView *)shadowView;
/**
* Called after view hierarchy manipulation has finished, and all shadow props
* have been set, but before layout has been performed. Useful for performing
* custom layout logic or tasks that involve walking the view hierarchy.
* To be deprecated, hopefully.
*/
- (RCTViewManagerUIBlock)uiBlockToAmendWithShadowViewRegistry:(NSDictionary<NSNumber *, RCTShadowView *> *)shadowViewRegistry;
/**
* This handles the simple case, where JS and native property names match.
*/
#define RCT_EXPORT_VIEW_PROPERTY(name, type) \
+ (NSArray<NSString *> *)propConfig_##name { return @[@#type]; }
/**
* This macro maps a named property to an arbitrary key path in the view.
*/
#define RCT_REMAP_VIEW_PROPERTY(name, keyPath, type) \
+ (NSArray<NSString *> *)propConfig_##name { return @[@#type, @#keyPath]; }
/**
* This macro can be used when you need to provide custom logic for setting
* view properties. The macro should be followed by a method body, which can
* refer to "json", "view" and "defaultView" to implement the required logic.
*/
#define RCT_CUSTOM_VIEW_PROPERTY(name, type, viewClass) \
RCT_REMAP_VIEW_PROPERTY(name, __custom__, type) \
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- (void)set_##name:(id)json forView:(viewClass *)view withDefaultView:(viewClass *)defaultView
/**
* This macro is used to map properties to the shadow view, instead of the view.
*/
#define RCT_EXPORT_SHADOW_PROPERTY(name, type) \
+ (NSArray<NSString *> *)propConfigShadow_##name { return @[@#type]; }
/**
* This macro maps a named property to an arbitrary key path in the shadow view.
*/
#define RCT_REMAP_SHADOW_PROPERTY(name, keyPath, type) \
+ (NSArray<NSString *> *)propConfigShadow_##name { return @[@#type, @#keyPath]; }
/**
* This macro can be used when you need to provide custom logic for setting
* shadow view properties. The macro should be followed by a method body, which can
* refer to "json" and "view".
*/
#define RCT_CUSTOM_SHADOW_PROPERTY(name, type, viewClass) \
RCT_REMAP_SHADOW_PROPERTY(name, __custom__, type) \
- (void)set_##name:(id)json forShadowView:(viewClass *)view
@end