Merge "Slide supports Gravity.START and Gravity.END." into lmp-mr1-dev

core/java/android/transition/SidePropagation.java

@@ -44,8 +44,8 @@ public class SidePropagation extends VisibilityPropagation {
      * farther from the edge. The default is {@link Gravity#BOTTOM}.
      *
      * @param side The side that is used to calculate the transition propagation. Must be one of
-     *             {@link Gravity#LEFT}, {@link Gravity#TOP}, {@link Gravity#RIGHT}, or
+     *             {@link Gravity#LEFT}, {@link Gravity#TOP}, {@link Gravity#RIGHT},
-     *             {@link Gravity#BOTTOM}.
+     *             {@link Gravity#BOTTOM}, {@link Gravity#START}, or {@link Gravity#END}.
      */
     public void setSide(int side) {
         mSide = side;
@@ -106,7 +106,7 @@ public class SidePropagation extends VisibilityPropagation {
             epicenterY = (top + bottom) / 2;
         }
 
-        float distance = distance(viewCenterX, viewCenterY, epicenterX, epicenterY,
+        float distance = distance(sceneRoot, viewCenterX, viewCenterY, epicenterX, epicenterY,
                 left, top, right, bottom);
         float maxDistance = getMaxDistance(sceneRoot);
         float distanceFraction = distance/maxDistance;
@@ -119,10 +119,20 @@ public class SidePropagation extends VisibilityPropagation {
         return Math.round(duration * directionMultiplier / mPropagationSpeed * distanceFraction);
     }
 
-    private int distance(int viewX, int viewY, int epicenterX, int epicenterY,
+    private int distance(View sceneRoot, int viewX, int viewY, int epicenterX, int epicenterY,
             int left, int top, int right, int bottom) {
+        final int side;
+        if (mSide == Gravity.START) {
+            final boolean isRtl = sceneRoot.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+            side = isRtl ? Gravity.RIGHT : Gravity.LEFT;
+        } else if (mSide == Gravity.END) {
+            final boolean isRtl = sceneRoot.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+            side = isRtl ? Gravity.LEFT : Gravity.RIGHT;
+        } else {
+            side = mSide;
+        }
         int distance = 0;
-        switch (mSide) {
+        switch (side) {
             case Gravity.LEFT:
                 distance = right - viewX + Math.abs(epicenterY - viewY);
                 break;
@@ -143,6 +153,8 @@ public class SidePropagation extends VisibilityPropagation {
         switch (mSide) {
             case Gravity.LEFT:
             case Gravity.RIGHT:
+            case Gravity.START:
+            case Gravity.END:
                 return sceneRoot.getWidth();
             default:
                 return sceneRoot.getHeight();

core/java/android/transition/Slide.java

@@ -76,6 +76,20 @@ public class Slide extends Visibility {
         }
     };
 
+    private static final CalculateSlide sCalculateStart = new CalculateSlideHorizontal() {
+        @Override
+        public float getGoneX(ViewGroup sceneRoot, View view) {
+            final boolean isRtl = sceneRoot.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+            final float x;
+            if (isRtl) {
+                x = view.getTranslationX() + sceneRoot.getWidth();
+            } else {
+                x = view.getTranslationX() - sceneRoot.getWidth();
+            }
+            return x;
+        }
+    };
+
     private static final CalculateSlide sCalculateTop = new CalculateSlideVertical() {
         @Override
         public float getGoneY(ViewGroup sceneRoot, View view) {
@@ -90,6 +104,20 @@ public class Slide extends Visibility {
         }
     };
 
+    private static final CalculateSlide sCalculateEnd = new CalculateSlideHorizontal() {
+        @Override
+        public float getGoneX(ViewGroup sceneRoot, View view) {
+            final boolean isRtl = sceneRoot.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+            final float x;
+            if (isRtl) {
+                x = view.getTranslationX() - sceneRoot.getWidth();
+            } else {
+                x = view.getTranslationX() + sceneRoot.getWidth();
+            }
+            return x;
+        }
+    };
+
     private static final CalculateSlide sCalculateBottom = new CalculateSlideVertical() {
         @Override
         public float getGoneY(ViewGroup sceneRoot, View view) {
@@ -144,7 +172,8 @@ public class Slide extends Visibility {
      *
      * @param slideEdge The edge of the scene to use for Views appearing and disappearing. One of
      *                  {@link android.view.Gravity#LEFT}, {@link android.view.Gravity#TOP},
-     *                  {@link android.view.Gravity#RIGHT}, {@link android.view.Gravity#BOTTOM}.
+     *                  {@link android.view.Gravity#RIGHT}, {@link android.view.Gravity#BOTTOM},
+     *                  {@link android.view.Gravity#START}, {@link android.view.Gravity#END}.
      * @attr ref android.R.styleable#Slide_slideEdge
      */
     public void setSlideEdge(int slideEdge) {
@@ -161,6 +190,12 @@ public class Slide extends Visibility {
             case Gravity.BOTTOM:
                 mSlideCalculator = sCalculateBottom;
                 break;
+            case Gravity.START:
+                mSlideCalculator = sCalculateStart;
+                break;
+            case Gravity.END:
+                mSlideCalculator = sCalculateEnd;
+                break;
             default:
                 throw new IllegalArgumentException("Invalid slide direction");
         }
@@ -175,7 +210,8 @@ public class Slide extends Visibility {
      *
      * @return the edge of the scene to use for Views appearing and disappearing. One of
      *         {@link android.view.Gravity#LEFT}, {@link android.view.Gravity#TOP},
-     *         {@link android.view.Gravity#RIGHT}, {@link android.view.Gravity#BOTTOM}.
+     *         {@link android.view.Gravity#RIGHT}, {@link android.view.Gravity#BOTTOM},
+     *         {@link android.view.Gravity#START}, {@link android.view.Gravity#END}.
      * @attr ref android.R.styleable#Slide_slideEdge
      */
     public int getSlideEdge() {

core/res/res/values/attrs.xml

@@ -5665,6 +5665,10 @@
             <enum name="right" value="0x05" />
             <!-- Slide to and from the bottom edge of the Scene. -->
             <enum name="bottom" value="0x50" />
+            <!-- Slide to and from the x-axis position at the start of the Scene root. -->
+            <enum name="start" value="0x00800003"/>
+            <!-- Slide to and from the x-axis position at the end of the Scene root. -->
+            <enum name="end" value="0x00800005"/>
         </attr>
     </declare-styleable>