Fixing up overscroll asset / sizing

-> No more jaggies! yay (issue 7459049)
-> Fixed up weird overscroll state (issue 7489094)

Change-Id: I5d6714a6f5f007ea0f73e4cf34a20572c5f43f64

Author: Adam Cohen

core/res/res/drawable-hdpi/kg_widget_bg_padded.9.png

@@ -1256,7 +1256,7 @@
   <java-symbol type="drawable" name="magnified_region_frame" />
   <java-symbol type="drawable" name="menu_background" />
   <java-symbol type="drawable" name="stat_sys_secure" />
-  <java-symbol type="drawable" name="kg_bouncer_bg_white" />
+  <java-symbol type="drawable" name="kg_widget_bg_padded" />
   <java-symbol type="id" name="action_mode_bar_stub" />
   <java-symbol type="id" name="alarm_status" />
   <java-symbol type="id" name="backspace" />

core/res/res/drawable-mdpi/kg_widget_bg_padded.9.png

@@ -214,7 +214,9 @@ public void onScrollStateChanged(int scrollState) {
                     mKeyguardWidgetPager.setWidgetToResetOnPageFadeOut(mPageListeningToSlider);
                 }
             }
-            frame.hideFrame(this);
+            if (scrollState != SlidingChallengeLayout.SCROLL_STATE_FADING) {
+                frame.hideFrame(this);
+            }
             updateEdgeSwiping();
 
             if (mChallengeLayout.isChallengeShowing()) {
@@ -233,7 +235,9 @@ public void onScrollStateChanged(int scrollState) {
 
             // Skip showing the frame and shrinking the widget if we are
             if (!mChallengeLayout.isBouncing()) {
-                frame.showFrame(this);
+                if (scrollState != SlidingChallengeLayout.SCROLL_STATE_FADING) {
+                    frame.showFrame(this);
+                }
 
                 // As soon as the security begins sliding, the widget becomes small (if it wasn't
                 // small to begin with).

core/res/res/drawable-xhdpi/kg_widget_bg_padded.9.png

@@ -110,13 +110,13 @@ public KeyguardWidgetFrame(Context context, AttributeSet attrs, int defStyle) {
         int padding = (int) (res.getDisplayMetrics().density * 8);
         setPadding(padding, padding, padding, padding);
 
-        mFrameStrokeAdjustment = (int) (2 * density);
+        mFrameStrokeAdjustment = 2 + (int) (2 * density);
 
         // This will be overriden on phones based on the current security mode, however on tablets
         // we need to specify a height.
         mSmallWidgetHeight =
                 res.getDimensionPixelSize(com.android.internal.R.dimen.kg_small_widget_height);
-        mBackgroundDrawable = res.getDrawable(R.drawable.kg_bouncer_bg_white);
+        mBackgroundDrawable = res.getDrawable(R.drawable.kg_widget_bg_padded);
         mGradientColor = res.getColor(com.android.internal.R.color.kg_widget_pager_gradient);
         mGradientPaint.setXfermode(sAddBlendMode);
     }
@@ -372,6 +372,10 @@ public void resetSize() {
     public void setFrameHeight(int height) {
         mFrameHeight = height;
         mBackgroundRect.set(0, 0, getMeasuredWidth(), Math.min(mFrameHeight, getMeasuredHeight()));
+        mForegroundRect.set(mFrameStrokeAdjustment, mFrameStrokeAdjustment,getMeasuredWidth() -
+                mFrameStrokeAdjustment, Math.min(getMeasuredHeight(), mFrameHeight) -
+                mFrameStrokeAdjustment);
+        updateGradient();
         invalidate();
     }
 
@@ -401,27 +405,30 @@ public void fadeFrame(Object caller, boolean takeControl, float alpha, int durat
         mFrameFade.start();
     }
 
-    @Override
-    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
-        super.onSizeChanged(w, h, oldw, oldh);
-
-        // mFrameStrokeAdjustment is a cludge to prevent the overlay from drawing outside the
-        // rounded rect background.
-        mForegroundRect.set(mFrameStrokeAdjustment, mFrameStrokeAdjustment,
-                w - mFrameStrokeAdjustment, h - mFrameStrokeAdjustment);
-
+    private void updateGradient() {
         float x0 = mLeftToRight ? 0 : mForegroundRect.width();
         float x1 = mLeftToRight ? mForegroundRect.width(): 0;
         mLeftToRightGradient = new LinearGradient(x0, 0f, x1, 0f,
                 mGradientColor, 0, Shader.TileMode.CLAMP);
         mRightToLeftGradient = new LinearGradient(x1, 0f, x0, 0f,
                 mGradientColor, 0, Shader.TileMode.CLAMP);
+    }
+
+    @Override
+    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+        super.onSizeChanged(w, h, oldw, oldh);
 
         if (!mIsSmall) {
             mFrameHeight = h;
         }
 
+        // mFrameStrokeAdjustment is a cludge to prevent the overlay from drawing outside the
+        // rounded rect background.
+        mForegroundRect.set(mFrameStrokeAdjustment, mFrameStrokeAdjustment,
+                w - mFrameStrokeAdjustment, Math.min(h, mFrameHeight) - mFrameStrokeAdjustment);
+
         mBackgroundRect.set(0, 0, getMeasuredWidth(), Math.min(h, mFrameHeight));
+        updateGradient();
         invalidate();
     }
 

core/res/res/values/symbols.xml

@@ -476,6 +476,10 @@ protected void screenScrolled(int screenCenter) {
                 v.setCameraDistance(mDensity * CAMERA_DISTANCE);
 
                 if (isOverScrollChild(i, scrollProgress) && PERFORM_OVERSCROLL_ROTATION) {
+                    float pivotX = v.getMeasuredWidth() / 2;
+                    float pivotY = v.getMeasuredHeight() / 2;
+                    v.setPivotX(pivotX);
+                    v.setPivotY(pivotY);
                     v.setRotationY(- OVERSCROLL_MAX_ROTATION * scrollProgress);
                     v.setOverScrollAmount(Math.abs(scrollProgress), scrollProgress < 0);
                 } else {
@@ -762,6 +766,8 @@ void zoomOutToBouncer() {
             mZoomInOutAnim.cancel();
         }
         View currentPage = getPageAt(getCurrentPage());
+        currentPage.setPivotY(0);
+        currentPage.setPivotX(currentPage.getMeasuredWidth() / 2);
         if (!(currentPage.getScaleX() < 1f || currentPage.getScaleY() < 1f)) {
             mZoomInOutAnim = new AnimatorSet();
             mZoomInOutAnim.setDuration(BOUNCER_ZOOM_IN_OUT_DURATION);

policy/src/com/android/internal/policy/impl/keyguard/KeyguardViewStateManager.java

@@ -658,10 +658,6 @@ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
                 MeasureSpec.makeMeasureSpec(heightSize - verticalPadding, childHeightMode);
 
             child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
-            if (shouldSetTopAlignedPivotForWidget(i)) {
-                child.setPivotX(child.getWidth() / 2);
-                child.setPivotY(0f);
-            }
         }
         setMeasuredDimension(scaledWidthSize, scaledHeightSize);