Modify qsb bar elements to handle hotword state.

They currently handle a pressed mode (showing a blue overlay), we'd like
them to also handle a hotword state that would modify their appearance
when hotword is available and active.

Meant to work with: ag/344334

Change-Id: I07e261ce64307fdad8a4c16fc02eb009ca826ece

1 files changed, 54 insertions, 3 deletions

diff --git a/src/com/android/launcher3/HolographicLinearLayout.java b/src/com/android/launcher3/HolographicLinearLayout.java
index 73d4c3a01..cdf43812a 100644
--- a/src/com/android/launcher3/HolographicLinearLayout.java
+++ b/src/com/android/launcher3/HolographicLinearLayout.java
@@ -22,17 +22,22 @@ import android.graphics.Canvas;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.StateListDrawable;
 import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.View.OnFocusChangeListener;
+import android.view.View.OnTouchListener;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 
-import com.android.launcher3.R;
-
 public class HolographicLinearLayout extends LinearLayout {
-
     private final HolographicViewHelper mHolographicHelper;
     private ImageView mImageView;
     private int mImageViewId;
 
+    private boolean mHotwordOn;
+    private boolean mIsPressed;
+    private boolean mIsFocused;
+
     public HolographicLinearLayout(Context context) {
         this(context, null);
     }
@@ -47,10 +52,33 @@ public class HolographicLinearLayout extends LinearLayout {
         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.HolographicLinearLayout,
                 defStyle, 0);
         mImageViewId = a.getResourceId(R.styleable.HolographicLinearLayout_sourceImageViewId, -1);
+        mHotwordOn = a.getBoolean(R.styleable.HolographicLinearLayout_stateHotwordOn, false);
         a.recycle();
 
+
         setWillNotDraw(false);
         mHolographicHelper = new HolographicViewHelper(context);
+
+        setOnTouchListener(new OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                if (isPressed() != mIsPressed) {
+                    mIsPressed = isPressed();
+                    refreshDrawableState();
+                }
+                return false;
+            }
+        });
+
+        setOnFocusChangeListener(new OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View v, boolean hasFocus) {
+                if (isFocused() != mIsFocused) {
+                    mIsFocused = isFocused();
+                    refreshDrawableState();
+                }
+            }
+        });
     }
 
     @Override
@@ -58,10 +86,12 @@ public class HolographicLinearLayout extends LinearLayout {
         super.drawableStateChanged();
 
         if (mImageView != null) {
+            mHolographicHelper.generatePressedFocusedStates(mImageView);
             Drawable d = mImageView.getDrawable();
             if (d instanceof StateListDrawable) {
                 StateListDrawable sld = (StateListDrawable) d;
                 sld.setState(getDrawableState());
+                sld.invalidateSelf();
             }
         }
     }
@@ -82,4 +112,25 @@ public class HolographicLinearLayout extends LinearLayout {
         }
         mHolographicHelper.generatePressedFocusedStates(mImageView);
     }
+
+    private boolean isHotwordOn() {
+        return mHotwordOn;
+    }
+
+    public void setHotwordState(boolean on) {
+        if (on == mHotwordOn) {
+            return;
+        }
+        mHotwordOn = on;
+        refreshDrawableState();
+    }
+
+    @Override
+    public int[] onCreateDrawableState(int extraSpace) {
+        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
+        if (isHotwordOn()) {
+            mergeDrawableStates(drawableState, new int[] {R.attr.stateHotwordOn});
+        }
+        return drawableState;
+    }
 }