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2716f53220
Summary: This is a complete rewrite of RCTText, the part of React Native which manages Text and TextInput components. Key points: * It's understandable now. It follows a simple architectural pattern, and it's easy to debug and iterate. Text flow layout is a first-class citizen in React Native layout system now, not just a wired special case. It also brings entirely new possibilities such as nested interleaving <Text> and <View> components. * All <Text>-specific APIs were removed from UIManager and co (it's about ~16 public methods which were used exclusively only by <Text>). * It relies on new Yoga measurement/cloning API and on-dirty handler. So, it removes built-in dirty propagation subsystem from RN completely. * It caches string fragments properly and granularly on a per-node basis which makes updating text-containing components more performant. * It does not instantiate UIView for virtual components which reduces memory utilization. * It drastically improves <TextInput> capabilities (e.g. rich text inside single line <TextInput> is now supported). Screenshots: https://cl.ly/2j3r1V0L0324 https://cl.ly/3N2V3C3d3q3R Reviewed By: mmmulani Differential Revision: D6617326 fbshipit-source-id: 35d4d81b35c9870e9557d0211c0e934e6072a41e
35 lines
1.2 KiB
Objective-C
35 lines
1.2 KiB
Objective-C
/**
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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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#import <UIKit/UIKit.h>
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@protocol RCTBackedTextInputViewProtocol;
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NS_ASSUME_NONNULL_BEGIN
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@protocol RCTBackedTextInputDelegate <NSObject>
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- (BOOL)textInputShouldBeginEditing; // Return `NO` to disallow editing.
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- (void)textInputDidBeginEditing;
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- (BOOL)textInputShouldEndEditing; // Return `YES` to allow editing to stop and to resign first responder status. `NO` to disallow the editing session to end.
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- (void)textInputDidEndEditing; // May be called if forced even if `textInputShouldEndEditing` returns `NO` (e.g. view removed from window) or `[textInput endEditing:YES]` called.
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- (BOOL)textInputShouldReturn; // May be called right before `textInputShouldEndEditing` if "Return" button was pressed.
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- (void)textInputDidReturn;
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- (BOOL)textInputShouldChangeTextInRange:(NSRange)range replacementText:(NSString *)string; // Return NO to not change text.
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- (void)textInputDidChange;
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- (void)textInputDidChangeSelection;
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@end
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NS_ASSUME_NONNULL_END
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