Keyboard (#3541)

* Support Keyboard events

change/react-native-windows-2019-10-28-10-44-55-keyboard.json

@@ -0,0 +1,9 @@
+{
+  "type": "prerelease",
+  "comment": "Support Keyboard events",
+  "packageName": "react-native-windows",
+  "email": "[email protected]",
+  "commit": "45a2fb84e8cbe53ad7ea190efab3919124ffb90b",
+  "date": "2019-10-28T17:44:55.590Z",
+  "file": "D:\\react2\\react-native-windows\\change\\react-native-windows-2019-10-28-10-44-55-keyboard.json"
+}

packages/playground/Samples/textinput.tsx

@@ -5,9 +5,37 @@
  */
 
 import * as React from 'react';
-import {AppRegistry, Button, StyleSheet, TextInput, View} from 'react-native';
+import {
+  AppRegistry,
+  Button,
+  StyleSheet,
+  TextInput,
+  Keyboard,
+  View,
+  KeyboardAvoidingView,
+} from 'react-native';
 
 export default class Bootstrap extends React.Component<{}, any> {
+  componentDidMount() {
+    Keyboard.addListener('keyboardDidShow', this.keyboardDidShow);
+
+    Keyboard.addListener('keyboardDidHide', this.keyboardDidHide);
+  }
+
+  keyboardDidShow = () => {
+    console.log('keyboardDidShow');
+  };
+
+  keyboardDidHide = () => {
+    console.log('keyboardDidHide');
+  };
+
+  componentWillUnmount() {
+    Keyboard.removeListener('keyboardDidShow', this.keyboardDidShow);
+
+    Keyboard.removeListener('keyboardDidHide', this.keyboardDidHide);
+  }
+
   state = {
     passwordHidden: true,
     text: '',
@@ -82,6 +110,15 @@ export default class Bootstrap extends React.Component<{}, any> {
           }
           onPress={this.onPressShowPassword}
         />
+        <KeyboardAvoidingView
+          style={styles.container}
+          behavior="padding"
+          enabled>
+          <TextInput
+            style={styles.input}
+            placeholder={'KeyboardAvoidingView padding'}
+          />
+        </KeyboardAvoidingView>
       </View>
     );
   }

vnext/ReactUWP/ReactUWP.vcxproj

@@ -252,6 +252,7 @@
     <ClInclude Include="Views\RootViewManager.h" />
     <ClInclude Include="Views\ScrollContentViewManager.h" />
     <ClInclude Include="Views\ScrollViewManager.h" />
+    <ClInclude Include="Views\SIPEventHandler.h" />
     <ClInclude Include="Views\SwitchViewManager.h" />
     <ClInclude Include="Views\SliderViewManager.h" />
     <ClInclude Include="Views\TextInputViewManager.h" />
@@ -353,6 +354,7 @@
     <ClCompile Include="Views\RootViewManager.cpp" />
     <ClCompile Include="Views\ScrollContentViewManager.cpp" />
     <ClCompile Include="Views\ScrollViewManager.cpp" />
+    <ClCompile Include="Views\SIPEventHandler.cpp" />
     <ClCompile Include="Views\SliderViewManager.cpp" />
     <ClCompile Include="Views\ShadowNodeBase.cpp" />
     <ClCompile Include="Views\SwitchViewManager.cpp" />

vnext/ReactUWP/Views/ReactControl.cpp

@@ -172,6 +172,9 @@ void ReactControl::AttachRoot() noexcept {
   if (!m_touchEventHandler)
     m_touchEventHandler = std::make_shared<TouchEventHandler>(m_reactInstance);
 
+  if (!m_SIPEventHandler)
+    m_SIPEventHandler = std::make_shared<SIPEventHandler>(m_reactInstance);
+
   m_previewKeyboardEventHandlerOnRoot = std::make_shared<PreviewKeyboardEventHandlerOnRoot>(m_reactInstance);
 
   // Register callback from instance for errors
@@ -268,6 +271,8 @@ void ReactControl::DetachInstance() {
 
     // Clear members with a dependency on the reactInstance
     m_touchEventHandler.reset();
+
+    m_SIPEventHandler.reset();
   }
 }
 

vnext/ReactUWP/Views/ReactControl.h

@@ -9,6 +9,7 @@
 #include <IReactInstance.h>
 #include <winrt/Windows.UI.Xaml.Controls.h>
 #include "IXamlRootView.h"
+#include "SIPEventHandler.h"
 #include "TouchEventHandler.h"
 #include "Views/KeyboardEventHandler.h"
 
@@ -75,6 +76,7 @@ class ReactControl : public std::enable_shared_from_this<ReactControl>, public I
   std::shared_ptr<facebook::react::NativeModuleProvider> m_moduleProvider;
   folly::dynamic m_initialProps;
   std::shared_ptr<TouchEventHandler> m_touchEventHandler;
+  std::shared_ptr<SIPEventHandler> m_SIPEventHandler;
   std::shared_ptr<PreviewKeyboardEventHandlerOnRoot> m_previewKeyboardEventHandlerOnRoot;
 
   int64_t m_rootTag = -1;

vnext/ReactUWP/Views/SIPEventHandler.cpp

@@ -0,0 +1,64 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#include <pch.h>
+
+#include "SIPEventHandler.h"
+
+#include <Modules/NativeUIManager.h>
+
+#include <winrt/Windows.ApplicationModel.Core.h>
+#include <winrt/Windows.Foundation.h>
+
+namespace winrt {
+using namespace Windows::Foundation;
+using namespace Windows::Foundation::Collections;
+using namespace Windows::UI::ViewManagement::Core;
+using namespace Windows::UI::Xaml;
+} // namespace winrt
+namespace react {
+namespace uwp {
+
+SIPEventHandler::SIPEventHandler(const std::weak_ptr<IReactInstance> &reactInstance)
+    : m_wkReactInstance(reactInstance) {
+  auto coreInputView = winrt::CoreInputView::GetForCurrentView();
+  if (coreInputView) {
+    m_occlusionsChanged_revoker = coreInputView.OcclusionsChanged(
+        winrt::auto_revoke, [=](auto &&, const winrt::CoreInputViewOcclusionsChangedEventArgs &e) {
+          if (!e.Handled()) {
+            winrt::Rect finalRect = winrt::RectHelper::Empty();
+            winrt::IVectorView<winrt::CoreInputViewOcclusion> occlusions = e.Occlusions();
+            for (uint32_t i = 0; i < occlusions.Size(); i++) {
+              winrt::CoreInputViewOcclusion occlusion = occlusions.GetAt(i);
+              if (occlusion.OcclusionKind() == winrt::CoreInputViewOcclusionKind::Docked) {
+                finalRect = winrt::RectHelper::Union(finalRect, occlusion.OccludingRect());
+              }
+            }
+
+            if (winrt::RectHelper::GetIsEmpty(finalRect)) {
+              folly::dynamic params = folly::dynamic::object("screenY", 0)("screenX", 0)("width", 0)("height", 0);
+              SendEvent("keyboardDidHide", std::move(params));
+            } else {
+              folly::dynamic params = folly::dynamic::object(
+                  "endCoordinates",
+                  folly::dynamic::object("screenY", finalRect.Y)("screenX", finalRect.X)("width", finalRect.Width)(
+                      "height", finalRect.Height));
+              SendEvent("keyboardDidShow", std::move(params));
+            }
+          }
+        });
+  }
+}
+
+SIPEventHandler::~SIPEventHandler() {
+  m_occlusionsChanged_revoker = {};
+}
+
+void SIPEventHandler::SendEvent(std::string &&eventName, folly::dynamic &&parameters) {
+  if (auto instance = m_wkReactInstance.lock()) {
+    instance->CallJsFunction(
+        "RCTDeviceEventEmitter", "emit", folly::dynamic::array(std::move(eventName), std::move(parameters)));
+  }
+}
+} // namespace uwp
+} // namespace react

vnext/ReactUWP/Views/SIPEventHandler.h

@@ -0,0 +1,30 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#pragma once
+#include <folly/dynamic.h>
+
+#include <IReactInstance.h>
+#include <winrt/Windows.UI.ViewManagement.Core.h>
+
+namespace winrt {
+using namespace Windows::Foundation;
+using namespace Windows::UI::ViewManagement::Core;
+} // namespace winrt
+
+namespace react {
+namespace uwp {
+
+class SIPEventHandler {
+ public:
+  SIPEventHandler(const std::weak_ptr<IReactInstance> &reactInstance);
+  virtual ~SIPEventHandler();
+
+ private:
+  void SendEvent(std::string &&eventName, folly::dynamic &&parameters);
+  std::weak_ptr<IReactInstance> m_wkReactInstance;
+  winrt::CoreInputView::OcclusionsChanged_revoker m_occlusionsChanged_revoker;
+};
+
+} // namespace uwp
+} // namespace react