Disable zoom when camera does not support zoom

Change-Id: I5b4c38636614df37db1ef3166368f1650c9e5fa0

5 files changed, 19 insertions, 2 deletions

diff --git a/src/com/android/camera/NewPhotoModule.java b/src/com/android/camera/NewPhotoModule.java
index f3eac3d57..71b23737b 100644
--- a/src/com/android/camera/NewPhotoModule.java
+++ b/src/com/android/camera/NewPhotoModule.java
@@ -542,6 +542,8 @@ public class NewPhotoModule
         mFocusManager.setParameters(mInitialParams);
         setupPreview();
 
+        // reset zoom value index
+        mZoomValue = 0;
         openCameraCommon();
 
         if (ApiHelper.HAS_SURFACE_TEXTURE) {
diff --git a/src/com/android/camera/NewPhotoUI.java b/src/com/android/camera/NewPhotoUI.java
index 4d9469743..2f29e440f 100644
--- a/src/com/android/camera/NewPhotoUI.java
+++ b/src/com/android/camera/NewPhotoUI.java
@@ -293,6 +293,7 @@ public class NewPhotoUI implements PieListener,
             mGestures = new NewPreviewGestures(mActivity, this, mZoomRenderer, mPieRenderer);
             mRenderOverlay.setGestures(mGestures);
         }
+        mGestures.setZoomEnabled(params.isZoomSupported());
         mGestures.setRenderOverlay(mRenderOverlay);
         mRenderOverlay.requestLayout();
 
diff --git a/src/com/android/camera/NewPreviewGestures.java b/src/com/android/camera/NewPreviewGestures.java
index 39c4be664..339c4b33f 100644
--- a/src/com/android/camera/NewPreviewGestures.java
+++ b/src/com/android/camera/NewPreviewGestures.java
@@ -69,6 +69,7 @@ public class NewPreviewGestures
     private int mMode;
     private int mSlop;
     private int mTapTimeout;
+    private boolean mZoomEnabled;
     private boolean mEnabled;
     private boolean mZoomOnly;
     private int mOrientation;
@@ -148,6 +149,10 @@ public class NewPreviewGestures
         mEnabled = enabled;
     }
 
+    public void setZoomEnabled(boolean enable) {
+        mZoomEnabled = enable;
+    }
+
     public void setZoomOnly(boolean zoom) {
         mZoomOnly = zoom;
     }
@@ -178,7 +183,10 @@ public class NewPreviewGestures
             mScale.onTouchEvent(m);
             if (MotionEvent.ACTION_POINTER_DOWN == m.getActionMasked()) {
                 mMode = MODE_ZOOM;
-                mZoom.onScaleBegin(mScale);
+                if (mZoomEnabled) {
+                    // Start showing zoom UI as soon as there is a second finger down
+                    mZoom.onScaleBegin(mScale);
+                }
             } else if (MotionEvent.ACTION_POINTER_UP == m.getActionMasked()) {
                 mZoom.onScaleEnd(mScale);
             }
@@ -241,6 +249,7 @@ public class NewPreviewGestures
         if (mPie == null || !mPie.isOpen()) {
             mMode = MODE_ZOOM;
             mGestureDetector.onTouchEvent(makeCancelEvent(mCurrent));
+            if (!mZoomEnabled) return false;
             return mZoom.onScaleBegin(detector);
         }
         return false;
diff --git a/src/com/android/camera/NewVideoModule.java b/src/com/android/camera/NewVideoModule.java
index 793cc5352..0d4e70229 100644
--- a/src/com/android/camera/NewVideoModule.java
+++ b/src/com/android/camera/NewVideoModule.java
@@ -2008,6 +2008,7 @@ public class NewVideoModule implements NewCameraModule,
         initializeVideoControl();
 
         // From onResume
+        mZoomValue = 0;
         mUI.initializeZoom(mParameters);
         mUI.setOrientationIndicator(0, false);
 
diff --git a/src/com/android/camera/NewVideoUI.java b/src/com/android/camera/NewVideoUI.java
index 02c8e1c7a..9e2c10810 100644
--- a/src/com/android/camera/NewVideoUI.java
+++ b/src/com/android/camera/NewVideoUI.java
@@ -581,7 +581,11 @@ public class NewVideoUI implements PieRenderer.PieListener,
     }
 
     public void initializeZoom(Parameters param) {
-        if (param == null || !param.isZoomSupported()) return;
+        if (param == null || !param.isZoomSupported()) {
+            mGestures.setZoomEnabled(false);
+            return;
+        }
+        mGestures.setZoomEnabled(true);
         mZoomMax = param.getMaxZoom();
         mZoomRatios = param.getZoomRatios();
         // Currently we use immediate zoom for fast zooming to get better UX and