Files
react-native/ReactAndroid/src/main/java/com/facebook/react/ReactAndroidHWInputDeviceHelper.java
T
Oleksandr Melnykov 6c0f73b322 Format Java code in xplat/js/react-native-github
Summary:
This diff formats the Java class files inside xplat/js/react-native-github. Since google-java-format was enabled in D16071401 we want to codemode the existing code so that users don't have to deal with formatter lint noise at diff-time.

```arc f --paths-cmd 'hg files -I "**/*.java"'```

drop-conflicts

Reviewed By: cpojer

Differential Revision: D16071725

fbshipit-source-id: fc6e3852e45742c109f0c5ac4065d64201c74204
2019-07-02 04:16:46 -07:00

93 lines
3.3 KiB
Java

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* <p>This source code is licensed under the MIT license found in the LICENSE file in the root
* directory of this source tree.
*/
package com.facebook.react;
import android.view.KeyEvent;
import android.view.View;
import com.facebook.react.bridge.WritableMap;
import com.facebook.react.bridge.WritableNativeMap;
import com.facebook.react.common.MapBuilder;
import java.util.Map;
/** Responsible for dispatching events specific for hardware inputs. */
public class ReactAndroidHWInputDeviceHelper {
/**
* Contains a mapping between handled KeyEvents and the corresponding navigation event that should
* be fired when the KeyEvent is received.
*/
private static final Map<Integer, String> KEY_EVENTS_ACTIONS =
MapBuilder.<Integer, String>builder()
.put(KeyEvent.KEYCODE_DPAD_CENTER, "select")
.put(KeyEvent.KEYCODE_ENTER, "select")
.put(KeyEvent.KEYCODE_SPACE, "select")
.put(KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE, "playPause")
.put(KeyEvent.KEYCODE_MEDIA_REWIND, "rewind")
.put(KeyEvent.KEYCODE_MEDIA_FAST_FORWARD, "fastForward")
.put(KeyEvent.KEYCODE_DPAD_UP, "up")
.put(KeyEvent.KEYCODE_DPAD_RIGHT, "right")
.put(KeyEvent.KEYCODE_DPAD_DOWN, "down")
.put(KeyEvent.KEYCODE_DPAD_LEFT, "left")
.build();
/**
* We keep a reference to the last focused view id so that we can send it as a target for key
* events and be able to send a blur event when focus changes.
*/
private int mLastFocusedViewId = View.NO_ID;
private final ReactRootView mReactRootView;
ReactAndroidHWInputDeviceHelper(ReactRootView mReactRootView) {
this.mReactRootView = mReactRootView;
}
/** Called from {@link ReactRootView}. This is the main place the key events are handled. */
public void handleKeyEvent(KeyEvent ev) {
int eventKeyCode = ev.getKeyCode();
int eventKeyAction = ev.getAction();
if ((eventKeyAction == KeyEvent.ACTION_UP || eventKeyAction == KeyEvent.ACTION_DOWN)
&& KEY_EVENTS_ACTIONS.containsKey(eventKeyCode)) {
dispatchEvent(KEY_EVENTS_ACTIONS.get(eventKeyCode), mLastFocusedViewId, eventKeyAction);
}
}
/** Called from {@link ReactRootView} when focused view changes. */
public void onFocusChanged(View newFocusedView) {
if (mLastFocusedViewId == newFocusedView.getId()) {
return;
}
if (mLastFocusedViewId != View.NO_ID) {
dispatchEvent("blur", mLastFocusedViewId);
}
mLastFocusedViewId = newFocusedView.getId();
dispatchEvent("focus", newFocusedView.getId());
}
/** Called from {@link ReactRootView} when the whole view hierarchy looses focus. */
public void clearFocus() {
if (mLastFocusedViewId != View.NO_ID) {
dispatchEvent("blur", mLastFocusedViewId);
}
mLastFocusedViewId = View.NO_ID;
}
private void dispatchEvent(String eventType, int targetViewId) {
dispatchEvent(eventType, targetViewId, -1);
}
private void dispatchEvent(String eventType, int targetViewId, int eventKeyAction) {
WritableMap event = new WritableNativeMap();
event.putString("eventType", eventType);
event.putInt("eventKeyAction", eventKeyAction);
if (targetViewId != View.NO_ID) {
event.putInt("tag", targetViewId);
}
mReactRootView.sendEvent("onHWKeyEvent", event);
}
}