Support Input Accessory View (iOS Only) [1/N]

Peter Argany · facebook-github-bot · commit 38197c823065 · 2018-02-27T11:09:30.000-08:00
Reviewed By: mmmulani

Differential Revision: D6886573

fbshipit-source-id: 71e1f812b1cc1698e4380211a6cedd59011b5495
diff --git a/Libraries/Components/TextInput/InputAccessoryView.js b/Libraries/Components/TextInput/InputAccessoryView.js
@@ -0,0 +1,114 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @providesModule InputAccessoryView
+ * @flow
+ * @format
+ */
+'use strict';
+
+const ColorPropType = require('ColorPropType');
+const React = require('React');
+const StyleSheet = require('StyleSheet');
+const ViewPropTypes = require('ViewPropTypes');
+
+const requireNativeComponent = require('requireNativeComponent');
+
+const RCTInputAccessoryView = requireNativeComponent('RCTInputAccessoryView');
+
+/**
+ * Note: iOS only
+ *
+ * A component which enables customization of the keyboard input accessory view.
+ * The input accessory view is displayed above the keyboard whenever a TextInput
+ * has focus. This component can be used to create custom toolbars.
+ *
+ * To use this component wrap your custom toolbar with the
+ * InputAccessoryView component, and set a nativeID. Then, pass that nativeID
+ * as the inputAccessoryViewID of whatever TextInput you desire. A simple
+ * example:
+ *
+ * ```ReactNativeWebPlayer
+ * import React, { Component } from 'react';
+ * import { AppRegistry, TextInput, InputAccessoryView, Button } from 'react-native';
+ *
+ * export default class UselessTextInput extends Component {
+ *   constructor(props) {
+ *     super(props);
+ *     this.state = {text: 'Placeholder Text'};
+ *   }
+ *
+ *   render() {
+ *     const inputAccessoryViewID = "uniqueID";
+ *     return (
+ *       <View>
+ *         <ScrollView keyboardDismissMode="interactive">
+ *           <TextInput
+ *             style={{
+ *               padding: 10,
+ *               paddingTop: 50,
+ *             }}
+ *             inputAccessoryViewID=inputAccessoryViewID
+ *             onChangeText={text => this.setState({text})}
+ *             value={this.state.text}
+ *           />
+ *         </ScrollView>
+ *         <InputAccessoryView nativeID=inputAccessoryViewID>
+ *           <Button
+ *             onPress={() => this.setState({text: 'Placeholder Text'})}
+ *             title="Reset Text"
+ *           />
+ *         </InputAccessoryView>
+ *       </View>
+ *     );
+ *   }
+ * }
+ *
+ * // skip this line if using Create React Native App
+ * AppRegistry.registerComponent('AwesomeProject', () => UselessTextInput);
+ * ```
+ *
+ * This component can also be used to create sticky text inputs (text inputs
+ * which are anchored to the top of the keyboard). To do this, wrap a
+ * TextInput with the InputAccessoryView component, and don't set a nativeID.
+ * For an example, look at InputAccessoryViewExample.js in RNTester.
+ */
+
+type Props = {
+  +children: React.Node,
+  /**
+   * An ID which is used to associate this `InputAccessoryView` to
+   * specified TextInput(s).
+   */
+  nativeID?: string,
+  style?: ViewPropTypes.style,
+  backgroundColor?: ColorPropType,
+};
+
+class InputAccessoryView extends React.Component<Props> {
+  render(): React.Node {
+    if (React.Children.count(this.props.children) === 0) {
+      return null;
+    }
+
+    return (
+      <RCTInputAccessoryView
+        style={[this.props.style, styles.container]}
+        nativeID={this.props.nativeID}
+        backgroundColor={this.props.backgroundColor}>
+        {this.props.children}
+      </RCTInputAccessoryView>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  container: {
+    position: 'absolute',
+  },
+});
+
+module.exports = InputAccessoryView;
diff --git a/Libraries/Components/TextInput/TextInput.js b/Libraries/Components/TextInput/TextInput.js
@@ -590,6 +590,13 @@ const TextInput = createReactClass({
      * This property is supported only for single-line TextInput component on iOS.
      */
     caretHidden: PropTypes.bool,
+    /**
+     * An optional identifier which links a custom InputAccessoryView to
+     * this text input. The InputAccessoryView is rendered above the
+     * keyboard when this text input is focused.
+     * @platform ios
+     */
+    inputAccessoryViewID: PropTypes.string,
   },
   getDefaultProps(): Object {
     return {
diff --git a/Libraries/Text/RCTText.xcodeproj/project.pbxproj b/Libraries/Text/RCTText.xcodeproj/project.pbxproj
@@ -103,6 +103,9 @@
 		5956B1A6200FF35C008D9D16 /* RCTUITextField.m in Sources */ = {isa = PBXBuildFile; fileRef = 5956B103200FEBA9008D9D16 /* RCTUITextField.m */; };
 		5956B1A7200FF35C008D9D16 /* RCTVirtualTextShadowView.m in Sources */ = {isa = PBXBuildFile; fileRef = 5956B12E200FEBAA008D9D16 /* RCTVirtualTextShadowView.m */; };
 		5956B1A8200FF35C008D9D16 /* RCTVirtualTextViewManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 5956B12B200FEBAA008D9D16 /* RCTVirtualTextViewManager.m */; };
+		8F2807C7202D2B6B005D65E6 /* RCTInputAccessoryViewManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 8F2807C1202D2B6A005D65E6 /* RCTInputAccessoryViewManager.m */; };
+		8F2807C8202D2B6B005D65E6 /* RCTInputAccessoryView.m in Sources */ = {isa = PBXBuildFile; fileRef = 8F2807C3202D2B6A005D65E6 /* RCTInputAccessoryView.m */; };
+		8F2807C9202D2B6B005D65E6 /* RCTInputAccessoryViewContent.m in Sources */ = {isa = PBXBuildFile; fileRef = 8F2807C5202D2B6B005D65E6 /* RCTInputAccessoryViewContent.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -229,6 +232,12 @@
 		5956B12D200FEBAA008D9D16 /* RCTVirtualTextViewManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTVirtualTextViewManager.h; sourceTree = "<group>"; };
 		5956B12E200FEBAA008D9D16 /* RCTVirtualTextShadowView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTVirtualTextShadowView.m; sourceTree = "<group>"; };
 		5956B12F200FEBAA008D9D16 /* RCTConvert+Text.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "RCTConvert+Text.m"; sourceTree = "<group>"; };
+		8F2807C1202D2B6A005D65E6 /* RCTInputAccessoryViewManager.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTInputAccessoryViewManager.m; sourceTree = "<group>"; };
+		8F2807C2202D2B6A005D65E6 /* RCTInputAccessoryViewContent.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTInputAccessoryViewContent.h; sourceTree = "<group>"; };
+		8F2807C3202D2B6A005D65E6 /* RCTInputAccessoryView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTInputAccessoryView.m; sourceTree = "<group>"; };
+		8F2807C4202D2B6A005D65E6 /* RCTInputAccessoryView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTInputAccessoryView.h; sourceTree = "<group>"; };
+		8F2807C5202D2B6B005D65E6 /* RCTInputAccessoryViewContent.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTInputAccessoryViewContent.m; sourceTree = "<group>"; };
+		8F2807C6202D2B6B005D65E6 /* RCTInputAccessoryViewManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTInputAccessoryViewManager.h; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXGroup section */
@@ -274,6 +283,12 @@
 		5956B0FF200FEBA9008D9D16 /* TextInput */ = {
 			isa = PBXGroup;
 			children = (
+				8F2807C4202D2B6A005D65E6 /* RCTInputAccessoryView.h */,
+				8F2807C3202D2B6A005D65E6 /* RCTInputAccessoryView.m */,
+				8F2807C2202D2B6A005D65E6 /* RCTInputAccessoryViewContent.h */,
+				8F2807C5202D2B6B005D65E6 /* RCTInputAccessoryViewContent.m */,
+				8F2807C6202D2B6B005D65E6 /* RCTInputAccessoryViewManager.h */,
+				8F2807C1202D2B6A005D65E6 /* RCTInputAccessoryViewManager.m */,
 				5956B113200FEBA9008D9D16 /* Multiline */,
 				5956B10C200FEBA9008D9D16 /* RCTBackedTextInputDelegate.h */,
 				5956B107200FEBA9008D9D16 /* RCTBackedTextInputDelegateAdapter.h */,
@@ -465,8 +480,11 @@
 				5956B140200FEBAA008D9D16 /* RCTTextShadowView.m in Sources */,
 				5956B131200FEBAA008D9D16 /* RCTRawTextViewManager.m in Sources */,
 				5956B137200FEBAA008D9D16 /* RCTBaseTextInputShadowView.m in Sources */,
+				8F2807C7202D2B6B005D65E6 /* RCTInputAccessoryViewManager.m in Sources */,
 				5956B146200FEBAA008D9D16 /* RCTConvert+Text.m in Sources */,
+				8F2807C9202D2B6B005D65E6 /* RCTInputAccessoryViewContent.m in Sources */,
 				5956B13F200FEBAA008D9D16 /* RCTTextAttributes.m in Sources */,
+				8F2807C8202D2B6B005D65E6 /* RCTInputAccessoryView.m in Sources */,
 				5956B143200FEBAA008D9D16 /* RCTTextView.m in Sources */,
 				5956B13C200FEBAA008D9D16 /* RCTUITextView.m in Sources */,
 				5956B136200FEBAA008D9D16 /* RCTBackedTextInputDelegateAdapter.m in Sources */,
diff --git a/Libraries/Text/TextInput/RCTBaseTextInputView.h b/Libraries/Text/TextInput/RCTBaseTextInputView.h
@@ -46,6 +46,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, copy) RCTTextSelection *selection;
 @property (nonatomic, strong, nullable) NSNumber *maxLength;
 @property (nonatomic, copy) NSAttributedString *attributedText;
+@property (nonatomic, copy) NSString *inputAccessoryViewID;
 
 @end
 
diff --git a/Libraries/Text/TextInput/RCTBaseTextInputView.m b/Libraries/Text/TextInput/RCTBaseTextInputView.m
@@ -15,6 +15,8 @@
 #import <React/RCTUtils.h>
 #import <React/UIView+React.h>
 
+#import "RCTInputAccessoryView.h"
+#import "RCTInputAccessoryViewContent.h"
 #import "RCTTextAttributes.h"
 #import "RCTTextSelection.h"
 
@@ -400,12 +402,33 @@ - (void)didMoveToWindow
 
 - (void)didSetProps:(NSArray<NSString *> *)changedProps
 {
-  [self invalidateInputAccessoryView];
+  #if !TARGET_OS_TV
+  if ([changedProps containsObject:@"inputAccessoryViewID"] && self.inputAccessoryViewID) {
+    [self setCustomInputAccessoryViewWithNativeID:self.inputAccessoryViewID];
+  } else if (!self.inputAccessoryViewID) {
+    [self setDefaultInputAccessoryView];
+  }
+  #endif
+}
+
+- (void)setCustomInputAccessoryViewWithNativeID:(NSString *)nativeID
+{
+  __weak RCTBaseTextInputView *weakSelf = self;
+  [_bridge.uiManager rootViewForReactTag:self.reactTag withCompletion:^(UIView *rootView) {
+    RCTBaseTextInputView *strongSelf = weakSelf;
+    if (rootView) {
+      UIView *accessoryView = [strongSelf->_bridge.uiManager viewForNativeID:nativeID
+                                                                 withRootTag:rootView.reactTag];
+      if (accessoryView && [accessoryView isKindOfClass:[RCTInputAccessoryView class]]) {
+        strongSelf.backedTextInputView.inputAccessoryView = ((RCTInputAccessoryView *)accessoryView).content.inputAccessoryView;
+        [strongSelf reloadInputViewsIfNecessary];
+      }
+    }
+  }];
 }
 
-- (void)invalidateInputAccessoryView
+- (void)setDefaultInputAccessoryView
 {
-#if !TARGET_OS_TV
   UIView<RCTBackedTextInputViewProtocol> *textInputView = self.backedTextInputView;
   UIKeyboardType keyboardType = textInputView.keyboardType;
 
@@ -443,12 +466,15 @@ - (void)invalidateInputAccessoryView
   else {
     textInputView.inputAccessoryView = nil;
   }
+  [self reloadInputViewsIfNecessary];
+}
 
+- (void)reloadInputViewsIfNecessary
+{
   // We have to call `reloadInputViews` for focused text inputs to update an accessory view.
-  if (textInputView.isFirstResponder) {
-    [textInputView reloadInputViews];
+  if (self.backedTextInputView.isFirstResponder) {
+    [self.backedTextInputView reloadInputViews];
   }
-#endif
 }
 
 - (void)handleInputAccessoryDoneButton
diff --git a/Libraries/Text/TextInput/RCTBaseTextInputViewManager.m b/Libraries/Text/TextInput/RCTBaseTextInputViewManager.m
@@ -53,6 +53,7 @@ @implementation RCTBaseTextInputViewManager
 RCT_EXPORT_VIEW_PROPERTY(maxLength, NSNumber)
 RCT_EXPORT_VIEW_PROPERTY(selectTextOnFocus, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(selection, RCTTextSelection)
+RCT_EXPORT_VIEW_PROPERTY(inputAccessoryViewID, NSString)
 
 RCT_EXPORT_VIEW_PROPERTY(onChange, RCTBubblingEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(onSelectionChange, RCTDirectEventBlock)
diff --git a/Libraries/Text/TextInput/RCTInputAccessoryView.h b/Libraries/Text/TextInput/RCTInputAccessoryView.h
@@ -0,0 +1,19 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <UIKit/UIKit.h>
+
+@class RCTBridge;
+@class RCTInputAccessoryViewContent;
+
+@interface RCTInputAccessoryView : UIView
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge;
+
+@property (nonatomic, readonly, strong) RCTInputAccessoryViewContent *content;
+
+@end
diff --git a/Libraries/Text/TextInput/RCTInputAccessoryView.m b/Libraries/Text/TextInput/RCTInputAccessoryView.m
@@ -0,0 +1,69 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTInputAccessoryView.h"
+
+#import <React/RCTBridge.h>
+#import <React/RCTTouchHandler.h>
+#import <React/UIView+React.h>
+
+#import "RCTInputAccessoryViewContent.h"
+
+@implementation RCTInputAccessoryView
+{
+  BOOL _contentShouldBeFirstResponder;
+}
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge
+{
+  if (self = [super init]) {
+    _content = [RCTInputAccessoryViewContent new];
+    RCTTouchHandler *const touchHandler = [[RCTTouchHandler alloc] initWithBridge:bridge];
+    [touchHandler attachToView:_content.inputAccessoryView];
+    [self addSubview:_content];
+  }
+  return self;
+}
+
+- (void)reactSetFrame:(CGRect)frame
+{
+  [_content.inputAccessoryView setFrame:frame];
+  [_content.contentView setFrame:frame];
+
+  if (_contentShouldBeFirstResponder) {
+    _contentShouldBeFirstResponder = NO;
+    [_content becomeFirstResponder];
+  }
+}
+
+- (void)insertReactSubview:(UIView *)subview atIndex:(NSInteger)index
+{
+  [super insertReactSubview:subview atIndex:index];
+  [_content insertReactSubview:subview atIndex:index];
+}
+
+- (void)removeReactSubview:(UIView *)subview
+{
+  [super removeReactSubview:subview];
+  [_content removeReactSubview:subview];
+}
+
+- (void)didUpdateReactSubviews
+{
+  // Do nothing, as subviews are managed by `insertReactSubview:atIndex:`
+}
+
+- (void)didSetProps:(NSArray<NSString *> *)changedProps
+{
+  // If the accessory view is not linked to a text input via nativeID, assume it is
+  // a standalone component that should get focus whenever it is rendered
+  if (![changedProps containsObject:@"nativeID"] && !self.nativeID) {
+    _contentShouldBeFirstResponder = YES;
+  }
+}
+
+@end
diff --git a/Libraries/Text/TextInput/RCTInputAccessoryViewContent.h b/Libraries/Text/TextInput/RCTInputAccessoryViewContent.h
@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <UIKit/UIKit.h>
+
+@interface RCTInputAccessoryViewContent : UIView
+
+@property (nonatomic, readwrite, retain) UIView *contentView;
+
+@end
diff --git a/Libraries/Text/TextInput/RCTInputAccessoryViewContent.m b/Libraries/Text/TextInput/RCTInputAccessoryViewContent.m
diff --git a/Libraries/Text/TextInput/RCTInputAccessoryViewManager.h b/Libraries/Text/TextInput/RCTInputAccessoryViewManager.h
diff --git a/Libraries/Text/TextInput/RCTInputAccessoryViewManager.m b/Libraries/Text/TextInput/RCTInputAccessoryViewManager.m
diff --git a/RNTester/js/TextInputExample.ios.js b/RNTester/js/TextInputExample.ios.js
