Initial changes to creating a fake landscape Launcher UI

Workspace and hotseat are drawn in rotated UI giving the impression that the
device is in Portrait, even though it is in landscape

Bug: 131360075
Change-Id: I29c4068af25fd4dcf7039b9a45886e864a137977

4 files changed, 136 insertions, 20 deletions

diff --git a/src/com/android/launcher3/views/ActivityContext.java b/src/com/android/launcher3/views/ActivityContext.java
index c9cdeffb9..0331a86cd 100644
--- a/src/com/android/launcher3/views/ActivityContext.java
+++ b/src/com/android/launcher3/views/ActivityContext.java
@@ -22,6 +22,7 @@ import android.view.View.AccessibilityDelegate;
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.ItemInfo;
+import com.android.launcher3.graphics.RotationMode;
 import com.android.launcher3.dot.DotInfo;
 
 /**
@@ -56,6 +57,19 @@ public interface ActivityContext {
 
     DeviceProfile getDeviceProfile();
 
+    /**
+     * Device profile to be used by UI elements which are shown directly on top of the wallpaper
+     * and whose presentation is tied to the wallpaper (and physical device) and not the activity
+     * configuration.
+     */
+    default DeviceProfile getWallpaperDeviceProfile() {
+        return getDeviceProfile();
+    }
+
+    default RotationMode getRotationMode() {
+        return RotationMode.NORMAL;
+    }
+
     static ActivityContext lookupContext(Context context) {
         if (context instanceof ActivityContext) {
             return (ActivityContext) context;
diff --git a/src/com/android/launcher3/views/BaseDragLayer.java b/src/com/android/launcher3/views/BaseDragLayer.java
index 86e1e32a3..3c81bcf39 100644
--- a/src/com/android/launcher3/views/BaseDragLayer.java
+++ b/src/com/android/launcher3/views/BaseDragLayer.java
@@ -88,7 +88,8 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
     // Touch is being dispatched through a proxy from InputMonitor
     private static final int TOUCH_DISPATCHING_PROXY = 1 << 2;
 
-    protected final int[] mTmpXY = new int[2];
+    protected final float[] mTmpXY = new float[2];
+    protected final float[] mTmpRectPoints = new float[4];
     protected final Rect mHitRect = new Rect();
 
     @ViewDebug.ExportedProperty(category = "launcher")
@@ -306,14 +307,16 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
      * @return The factor by which this descendant is scaled relative to this DragLayer.
      */
     public float getDescendantRectRelativeToSelf(View descendant, Rect r) {
-        mTmpXY[0] = 0;
-        mTmpXY[1] = 0;
-        float scale = getDescendantCoordRelativeToSelf(descendant, mTmpXY);
-
-        r.set(mTmpXY[0], mTmpXY[1],
-                (int) (mTmpXY[0] + scale * descendant.getMeasuredWidth()),
-                (int) (mTmpXY[1] + scale * descendant.getMeasuredHeight()));
-        return scale;
+        mTmpRectPoints[0] = 0;
+        mTmpRectPoints[1] = 0;
+        mTmpRectPoints[2] = descendant.getWidth();
+        mTmpRectPoints[3] = descendant.getHeight();
+        float s = getDescendantCoordRelativeToSelf(descendant, mTmpRectPoints);
+        r.left = Math.round(Math.min(mTmpRectPoints[0], mTmpRectPoints[2]));
+        r.top = Math.round(Math.min(mTmpRectPoints[1], mTmpRectPoints[3]));
+        r.right = Math.round(Math.max(mTmpRectPoints[0], mTmpRectPoints[2]));
+        r.bottom = Math.round(Math.max(mTmpRectPoints[1], mTmpRectPoints[3]));
+        return s;
     }
 
     public float getLocationInDragLayer(View child, int[] loc) {
@@ -323,6 +326,14 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
     }
 
     public float getDescendantCoordRelativeToSelf(View descendant, int[] coord) {
+        mTmpXY[0] = coord[0];
+        mTmpXY[1] = coord[1];
+        float scale = getDescendantCoordRelativeToSelf(descendant, mTmpXY);
+        Utilities.roundArray(mTmpXY, coord);
+        return scale;
+    }
+
+    public float getDescendantCoordRelativeToSelf(View descendant, float[] coord) {
         return getDescendantCoordRelativeToSelf(descendant, coord, false);
     }
 
@@ -338,17 +349,27 @@ public abstract class BaseDragLayer<T extends Context & ActivityContext>
      *         this scale factor is assumed to be equal in X and Y, and so if at any point this
      *         assumption fails, we will need to return a pair of scale factors.
      */
-    public float getDescendantCoordRelativeToSelf(View descendant, int[] coord,
+    public float getDescendantCoordRelativeToSelf(View descendant, float[] coord,
             boolean includeRootScroll) {
         return Utilities.getDescendantCoordRelativeToAncestor(descendant, this,
                 coord, includeRootScroll);
     }
 
     /**
+     * Inverse of {@link #getDescendantCoordRelativeToSelf(View, float[])}.
+     */
+    public void mapCoordInSelfToDescendant(View descendant, float[] coord) {
+        Utilities.mapCoordInSelfToDescendant(descendant, this, coord);
+    }
+
+    /**
      * Inverse of {@link #getDescendantCoordRelativeToSelf(View, int[])}.
      */
     public void mapCoordInSelfToDescendant(View descendant, int[] coord) {
-        Utilities.mapCoordInSelfToDescendant(descendant, this, coord);
+        mTmpXY[0] = coord[0];
+        mTmpXY[1] = coord[1];
+        Utilities.mapCoordInSelfToDescendant(descendant, this, mTmpXY);
+        Utilities.roundArray(mTmpXY, coord);
     }
 
     public void getViewRectRelativeToSelf(View v, Rect r) {
diff --git a/src/com/android/launcher3/views/FloatingIconView.java b/src/com/android/launcher3/views/FloatingIconView.java
index 77f278a19..257466539 100644
--- a/src/com/android/launcher3/views/FloatingIconView.java
+++ b/src/com/android/launcher3/views/FloatingIconView.java
@@ -15,6 +15,9 @@
  */
 package com.android.launcher3.views;
 
+import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_DESKTOP;
+import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_HOTSEAT;
+import static com.android.launcher3.Utilities.mapToRange;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.config.FeatureFlags.ADAPTIVE_ICON_WINDOW_ANIM;
 
@@ -23,6 +26,7 @@ import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
+import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Color;
@@ -61,12 +65,10 @@ import com.android.launcher3.shortcuts.DeepShortcutView;
 import androidx.annotation.Nullable;
 import androidx.annotation.WorkerThread;
 
-import static com.android.launcher3.Utilities.mapToRange;
-
 /**
  * A view that is created to look like another view with the purpose of creating fluid animations.
  */
-
+@TargetApi(Build.VERSION_CODES.Q)
 public class FloatingIconView extends View implements Animator.AnimatorListener, ClipPathView {
 
     public static final float SHAPE_PROGRESS_DURATION = 0.15f;
@@ -186,14 +188,16 @@ public class FloatingIconView extends View implements Animator.AnimatorListener,
      * @param v The view to copy
      * @param positionOut Rect that will hold the size and position of v.
      */
-    private void matchPositionOf(Launcher launcher, View v, Rect positionOut) {
-        Utilities.getLocationBoundsForView(launcher, v, positionOut);
-        final LayoutParams lp = new LayoutParams(positionOut.width(), positionOut.height());
+    private void matchPositionOf(Launcher launcher, View v, RectF positionOut) {
+        getLocationBoundsForView(launcher, v, positionOut);
+        final LayoutParams lp = new LayoutParams(
+                Math.round(positionOut.width()),
+                Math.round(positionOut.height()));
         lp.ignoreInsets = true;
 
         // Position the floating view exactly on top of the original
-        lp.leftMargin = positionOut.left;
-        lp.topMargin = positionOut.top;
+        lp.leftMargin = Math.round(positionOut.left);
+        lp.topMargin = Math.round(positionOut.top);
         setLayoutParams(lp);
         // Set the properties here already to make sure they are available when running the first
         // animation frame.
@@ -201,6 +205,57 @@ public class FloatingIconView extends View implements Animator.AnimatorListener,
                 + lp.height);
     }
 
+    /**
+     * Returns the location bounds of a view.
+     * - For DeepShortcutView, we return the bounds of the icon view.
+     * - For BubbleTextView, we return the icon bounds.
+     */
+    private void getLocationBoundsForView(Launcher launcher, View v, RectF outRect) {
+        final boolean isBubbleTextView = v instanceof BubbleTextView;
+        final boolean isFolderIcon = v instanceof FolderIcon;
+
+        // Deep shortcut views have their icon drawn in a separate view.
+        final boolean fromDeepShortcutView = v.getParent() instanceof DeepShortcutView;
+
+        final View targetView;
+        boolean ignoreTransform = false;
+
+        if (v instanceof DeepShortcutView) {
+            targetView = ((DeepShortcutView) v).getIconView();
+        } else if (fromDeepShortcutView) {
+            DeepShortcutView view = (DeepShortcutView) v.getParent();
+            targetView = view.getIconView();
+        } else if ((isBubbleTextView || isFolderIcon) && v.getTag() instanceof ItemInfo
+                && (((ItemInfo) v.getTag()).container == CONTAINER_DESKTOP
+                || ((ItemInfo) v.getTag()).container == CONTAINER_HOTSEAT)) {
+            targetView = v;
+            ignoreTransform = true;
+        } else {
+            targetView = v;
+        }
+
+        float[] points = new float[] {0, 0, targetView.getWidth(), targetView.getHeight()};
+        Utilities.getDescendantCoordRelativeToAncestor(targetView, launcher.getDragLayer(), points,
+                false, ignoreTransform);
+
+        float viewLocationLeft = Math.min(points[0], points[2]);
+        float viewLocationTop = Math.min(points[1], points[3]);
+
+        final Rect iconRect = new Rect();
+        if (isBubbleTextView && !fromDeepShortcutView) {
+            ((BubbleTextView) v).getIconBounds(iconRect);
+        } else if (isFolderIcon) {
+            ((FolderIcon) v).getPreviewBounds(iconRect);
+        } else {
+            iconRect.set(0, 0, Math.abs(Math.round(points[2] - points[0])),
+                    Math.abs(Math.round(points[3] - points[1])));
+        }
+        viewLocationLeft += iconRect.left;
+        viewLocationTop += iconRect.top;
+        outRect.set(viewLocationLeft, viewLocationTop, viewLocationLeft + iconRect.width(),
+                viewLocationTop + iconRect.height());
+    }
+
     @WorkerThread
     private void getIcon(Launcher launcher, View v, ItemInfo info, boolean isOpening,
             Runnable onIconLoadedRunnable, CancellationSignal loadIconSignal) {
@@ -411,7 +466,7 @@ public class FloatingIconView extends View implements Animator.AnimatorListener,
      * @param isOpening True if this view replaces the icon for app open animation.
      */
     public static FloatingIconView getFloatingIconView(Launcher launcher, View originalView,
-            boolean hideOriginal, Rect positionOut, boolean isOpening, FloatingIconView recycle) {
+            boolean hideOriginal, RectF positionOut, boolean isOpening, FloatingIconView recycle) {
         if (recycle != null) {
             recycle.recycle();
         }
diff --git a/src/com/android/launcher3/views/Transposable.java b/src/com/android/launcher3/views/Transposable.java
new file mode 100644
index 000000000..929c1aa9b
--- /dev/null
+++ b/src/com/android/launcher3/views/Transposable.java
@@ -0,0 +1,26 @@
+/**
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.views;
+
+import com.android.launcher3.graphics.RotationMode;
+
+/**
+ * Indicates that a view can be transposed.
+ */
+public interface Transposable {
+
+    RotationMode getRotationMode();
+}