Camera: Cleanup hardware key handling

* Fix power shutter behaviour in camcorder mode
* Disable volume change while in panorama mode, volume buttons should only
handle camera operations while in the camera
* Add camera/power/volume key shutter handling in panorama mode

On devices with a hardware camera key:
* Disable power & volume shutter features
* Volume buttons control the zoom

On devices without a hardware camera key:
* When power shutter is disabled, volume buttons control the shutter (like AOSP)
* When power shutter is enabled, volume buttons control the zoom

Change-Id: I141946d5b6f5aec8b1e9a9f99270d30295596079

1 files changed, 32 insertions, 1 deletions

diff --git a/src/com/android/camera/WideAnglePanoramaModule.java b/src/com/android/camera/WideAnglePanoramaModule.java
index 8d7243c5c..b88ec9e09 100644
--- a/src/com/android/camera/WideAnglePanoramaModule.java
+++ b/src/com/android/camera/WideAnglePanoramaModule.java
@@ -310,6 +310,9 @@ public class WideAnglePanoramaModule
         CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal(), activity);
         mLocationManager = new LocationManager(mActivity, null);
 
+        // Power shutter
+        mActivity.initPowerShutter(mPreferences);
+
         mMainHandler = new Handler() {
             @Override
             public void handleMessage(Message msg) {
@@ -938,6 +941,10 @@ public class WideAnglePanoramaModule
         }
         mUI.showPreviewCover();
         releaseCamera();
+
+        // Load the power shutter
+        mActivity.initPowerShutter(mPreferences);
+
         synchronized (mRendererLock) {
             mCameraTexture = null;
 
@@ -1226,14 +1233,38 @@ public class WideAnglePanoramaModule
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
     }
 
-
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_VOLUME_UP:
+            case KeyEvent.KEYCODE_VOLUME_DOWN:
+                return true;
+            case KeyEvent.KEYCODE_CAMERA:
+                if (event.getRepeatCount() == 0) {
+                    onShutterButtonClick();
+                }
+                return true;
+            case KeyEvent.KEYCODE_POWER:
+                return true;
+        }
         return false;
     }
 
     @Override
     public boolean onKeyUp(int keyCode, KeyEvent event) {
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_VOLUME_UP:
+            case KeyEvent.KEYCODE_VOLUME_DOWN:
+                if (!CameraActivity.mPowerShutter && !CameraUtil.hasCameraKey()) {
+                    onShutterButtonClick();
+                }
+                return true;
+            case KeyEvent.KEYCODE_POWER:
+                if (CameraActivity.mPowerShutter && !CameraUtil.hasCameraKey()) {
+                    onShutterButtonClick();
+                }
+                return true;
+        }
         return false;
     }