Merge "Fixing some drag and drop issues."
diff --git a/cmds/am/src/com/android/commands/am/Am.java b/cmds/am/src/com/android/commands/am/Am.java
index d45bc5d..ba93b2a 100644
--- a/cmds/am/src/com/android/commands/am/Am.java
+++ b/cmds/am/src/com/android/commands/am/Am.java
@@ -166,7 +166,7 @@
                 "       am stack info <STACK_ID>\n" +
                 "       am task lock <TASK_ID>\n" +
                 "       am task lock stop\n" +
-                "       am task resizeable <TASK_ID> [true|false]\n" +
+                "       am task resizeable <TASK_ID> [0 (unresizeable) | 1 (crop_windows) | 2 (resizeable) | 3 (resizeable_and_pipable)]\n" +
                 "       am task resize <TASK_ID> <LEFT,TOP,RIGHT,BOTTOM>\n" +
                 "       am task drag-task-test <TASK_ID> <STEP_SIZE> [DELAY_MS] \n" +
                 "       am task size-task-test <TASK_ID> <STEP_SIZE> [DELAY_MS] \n" +
@@ -323,7 +323,8 @@
                 "\n" +
                 "am task lock stop: end the current task lock.\n" +
                 "\n" +
-                "am task resizeable: change if <TASK_ID> is resizeable (true) or not (false).\n" +
+                "am task resizeable: change resizeable mode of <TASK_ID>.\n" +
+                "   0 (unresizeable) | 1 (crop_windows) | 2 (resizeable) | 3 (resizeable_and_pipable)\n" +
                 "\n" +
                 "am task resize: makes sure <TASK_ID> is in a stack with the specified bounds.\n" +
                 "   Forces the task to be resizeable and creates a stack if no existing stack\n" +
@@ -1985,10 +1986,10 @@
         final String taskIdStr = nextArgRequired();
         final int taskId = Integer.valueOf(taskIdStr);
         final String resizeableStr = nextArgRequired();
-        final boolean resizeable = Boolean.valueOf(resizeableStr);
+        final int resizeableMode = Integer.valueOf(resizeableStr);
 
         try {
-            mAm.setTaskResizeable(taskId, resizeable);
+            mAm.setTaskResizeable(taskId, resizeableMode);
         } catch (RemoteException e) {
         }
     }
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index cd5797e..138ff6d 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -2587,9 +2587,9 @@
 
         case SET_TASK_RESIZEABLE_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
-            int taskId = data.readInt();
-            boolean resizeable = (data.readInt() == 1) ? true : false;
-            setTaskResizeable(taskId, resizeable);
+            final int taskId = data.readInt();
+            final int resizeableMode = data.readInt();
+            setTaskResizeable(taskId, resizeableMode);
             reply.writeNoException();
             return true;
         }
@@ -6307,12 +6307,12 @@
     }
 
     @Override
-    public void setTaskResizeable(int taskId, boolean resizeable) throws  RemoteException {
+    public void setTaskResizeable(int taskId, int resizeableMode) throws  RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
         data.writeInterfaceToken(IActivityManager.descriptor);
         data.writeInt(taskId);
-        data.writeInt(resizeable ? 1 : 0);
+        data.writeInt(resizeableMode);
         mRemote.transact(SET_TASK_RESIZEABLE_TRANSACTION, data, reply, 0);
         reply.readException();
         data.recycle();
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index 5b3ffe0..cefbb80 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -530,7 +530,7 @@
 
     public void setTaskDescription(IBinder token, ActivityManager.TaskDescription values)
             throws RemoteException;
-    public void setTaskResizeable(int taskId, boolean resizeable) throws RemoteException;
+    public void setTaskResizeable(int taskId, int resizeableMode) throws RemoteException;
     public void resizeTask(int taskId, Rect bounds, int resizeMode) throws RemoteException;
 
     public Rect getTaskBounds(int taskId) throws RemoteException;
diff --git a/core/java/android/content/pm/ActivityInfo.java b/core/java/android/content/pm/ActivityInfo.java
index 91a8e0a..10b8a30 100644
--- a/core/java/android/content/pm/ActivityInfo.java
+++ b/core/java/android/content/pm/ActivityInfo.java
@@ -785,7 +785,12 @@
     }
 
     /** @hide */
-    public static final String resizeModeToString(int mode) {
+    public static boolean isResizeableMode(int mode) {
+        return mode == RESIZE_MODE_RESIZEABLE || mode == RESIZE_MODE_RESIZEABLE_AND_PIPABLE;
+    }
+
+    /** @hide */
+    public static String resizeModeToString(int mode) {
         switch (mode) {
             case RESIZE_MODE_UNRESIZEABLE:
                 return "RESIZE_MODE_UNRESIZEABLE";
diff --git a/core/java/android/view/IWindowManager.aidl b/core/java/android/view/IWindowManager.aidl
index b045c17..27ea92d 100644
--- a/core/java/android/view/IWindowManager.aidl
+++ b/core/java/android/view/IWindowManager.aidl
@@ -101,15 +101,16 @@
      * @param taskBounds Bounds to use when creating a new Task with the input task Id if
      *                   the task doesn't exist yet.
      * @param configuration Configuration that is being used with this task.
-     * @param cropWindowsToStack True if the app windows should be cropped to the stack bounds.
+     * @param taskResizeMode The resize mode of the task.
      * @param alwaysFocusable True if the app windows are always focusable regardless of the stack
      *                        they are in.
+     * @param homeTask True if this is the task.
      */
     void addAppToken(int addPos, IApplicationToken token, int taskId, int stackId,
             int requestedOrientation, boolean fullscreen, boolean showWhenLocked, int userId,
             int configChanges, boolean voiceInteraction, boolean launchTaskBehind,
-            in Rect taskBounds, in Configuration configuration, boolean cropWindowsToStack,
-            boolean alwaysFocusable);
+            in Rect taskBounds, in Configuration configuration, int taskResizeMode,
+            boolean alwaysFocusable, boolean homeTask);
     /**
      *
      * @param token The token we are adding to the input task Id.
@@ -119,9 +120,11 @@
      * @param taskBounds Bounds to use when creating a new Task with the input task Id if
      *                   the task doesn't exist yet.
      * @param config Configuration that is being used with this task.
+     * @param taskResizeMode The resize mode of the task.
+     * @param homeTask True if this is the task.
      */
-    void setAppTask(
-            IBinder token, int taskId, int stackId, in Rect taskBounds, in Configuration config);
+    void setAppTask(IBinder token, int taskId, int stackId, in Rect taskBounds,
+            in Configuration config, int taskResizeMode, boolean homeTask);
     void setAppOrientation(IApplicationToken token, int requestedOrientation);
     int getAppOrientation(IApplicationToken token);
     void setFocusedApp(IBinder token, boolean moveFocusNow);
diff --git a/packages/DocumentsUI/src/com/android/documentsui/Metrics.java b/packages/DocumentsUI/src/com/android/documentsui/Metrics.java
index eb90b75..bae334b 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/Metrics.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/Metrics.java
@@ -17,7 +17,10 @@
 package com.android.documentsui;
 
 import static com.android.documentsui.Shared.DEBUG;
+import static com.android.internal.util.Preconditions.checkArgument;
 
+import android.annotation.IntDef;
+import android.annotation.Nullable;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
@@ -25,9 +28,16 @@
 import android.provider.DocumentsContract;
 import android.util.Log;
 
+import com.android.documentsui.model.DocumentInfo;
 import com.android.documentsui.model.RootInfo;
+import com.android.documentsui.services.FileOperationService;
+import com.android.documentsui.services.FileOperationService.OpType;
 import com.android.internal.logging.MetricsLogger;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.List;
+
 /** @hide */
 public final class Metrics {
     private static final String TAG = "Metrics";
@@ -37,6 +47,7 @@
     private static final String AUTHORITY_MEDIA = "com.android.providers.media.documents";
     private static final String AUTHORITY_STORAGE = "com.android.externalstorage.documents";
     private static final String AUTHORITY_DOWNLOADS = "com.android.providers.downloads.documents";
+    private static final String AUTHORITY_MTP = "com.android.mtp.documents";
 
     // These strings have to be whitelisted in tron. Do not change them.
     private static final String COUNT_LAUNCH_ACTION = "docsui_launch_action";
@@ -47,11 +58,16 @@
     private static final String COUNT_BROWSE_ROOT = "docsui_browse_root";
     private static final String COUNT_MANAGE_ROOT = "docsui_manage_root";
     private static final String COUNT_MULTI_WINDOW = "docsui_multi_window";
+    private static final String COUNT_FILEOP_SYSTEM = "docsui_fileop_system";
+    private static final String COUNT_FILEOP_EXTERNAL = "docsui_fileop_external";
+    private static final String COUNT_FILEOP_CANCELED = "docsui_fileop_canceled";
 
     // Indices for bucketing roots in the roots histogram. "Other" is the catch-all index for any
     // root that is not explicitly recognized by the Metrics code (see {@link
     // #getSanitizedRootIndex}). Apps are also bucketed in this histogram using negative indices
     // (see below).
+    // Do not change or rearrange these values, that will break historical data. Only add to the end
+    // of the list.
     private static final int ROOT_NONE = 0;
     private static final int ROOT_OTHER = 1;
     private static final int ROOT_AUDIO = 2;
@@ -61,10 +77,27 @@
     private static final int ROOT_IMAGES = 6;
     private static final int ROOT_RECENTS = 7;
     private static final int ROOT_VIDEOS = 8;
+    private static final int ROOT_MTP = 9;
     // Apps aren't really "roots", but they are treated as such in the roots fragment UI and so they
     // are logged analogously to roots. Use negative numbers to identify apps.
     private static final int ROOT_THIRD_PARTY_APP = -1;
 
+    @IntDef(flag = true, value = {
+            ROOT_NONE,
+            ROOT_OTHER,
+            ROOT_AUDIO,
+            ROOT_DEVICE_STORAGE,
+            ROOT_DOWNLOADS,
+            ROOT_HOME,
+            ROOT_IMAGES,
+            ROOT_RECENTS,
+            ROOT_VIDEOS,
+            ROOT_MTP,
+            ROOT_THIRD_PARTY_APP
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Root {}
+
     // Indices for bucketing mime types.
     private static final int MIME_OTHER = -2; // anything not enumerated below
     private static final int MIME_NONE = -1; // null mime
@@ -77,6 +110,66 @@
     private static final int MIME_TEXT = 6; // text/*
     private static final int MIME_VIDEO = 7; // video/*
 
+    @IntDef(flag = true, value = {
+            MIME_OTHER,
+            MIME_NONE,
+            MIME_ANY,
+            MIME_APPLICATION,
+            MIME_AUDIO,
+            MIME_IMAGE,
+            MIME_MESSAGE,
+            MIME_MULTIPART,
+            MIME_TEXT,
+            MIME_VIDEO
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Mime {}
+
+    // Codes representing different kinds of file operations. These are used for bucketing
+    // operations in the COUNT_FILEOP_{SYSTEM|EXTERNAL} histograms.
+    private static final int FILEOP_OTHER = 0; // any file operation not listed below
+    private static final int FILEOP_COPY_INTRA_PROVIDER = 1; // Copy within a provider
+    private static final int FILEOP_COPY_SYSTEM_PROVIDER = 2; // Copy to a system provider.
+    private static final int FILEOP_COPY_EXTERNAL_PROVIDER = 3; // Copy to a 3rd-party provider.
+    private static final int FILEOP_MOVE_INTRA_PROVIDER = 4; // Move within a provider.
+    private static final int FILEOP_MOVE_SYSTEM_PROVIDER = 5; // Move to a system provider.
+    private static final int FILEOP_MOVE_EXTERNAL_PROVIDER = 6; // Move to a 3rd-party provider.
+    private static final int FILEOP_DELETE = 7;
+    private static final int FILEOP_OTHER_ERROR = -1;
+    private static final int FILEOP_COPY_ERROR = -2;
+    private static final int FILEOP_MOVE_ERROR = -3;
+    private static final int FILEOP_DELETE_ERROR = -4;
+
+    @IntDef(flag = true, value = {
+            FILEOP_OTHER,
+            FILEOP_COPY_INTRA_PROVIDER,
+            FILEOP_COPY_SYSTEM_PROVIDER,
+            FILEOP_COPY_EXTERNAL_PROVIDER,
+            FILEOP_MOVE_INTRA_PROVIDER,
+            FILEOP_MOVE_SYSTEM_PROVIDER,
+            FILEOP_MOVE_EXTERNAL_PROVIDER,
+            FILEOP_DELETE,
+            FILEOP_OTHER_ERROR,
+            FILEOP_COPY_ERROR,
+            FILEOP_MOVE_ERROR,
+            FILEOP_DELETE_ERROR
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface FileOp {}
+
+    // Codes representing different provider types.  Used for sorting file operations when logging.
+    private static final int PROVIDER_INTRA = 0;
+    private static final int PROVIDER_SYSTEM = 1;
+    private static final int PROVIDER_EXTERNAL = 2;
+
+    @IntDef(flag = true, value = {
+            PROVIDER_INTRA,
+            PROVIDER_SYSTEM,
+            PROVIDER_EXTERNAL
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Provider {}
+
     /**
      * Logs when DocumentsUI is started, and how. Call this when DocumentsUI first starts up.
      *
@@ -140,6 +233,99 @@
     }
 
     /**
+     * Logs file operation stats. Call this when a file operation has completed. The given
+     * DocumentInfo is only used to distinguish broad categories of actions (e.g. copying from one
+     * provider to another vs copying within a given provider).  No PII is logged.
+     *
+     * @param context
+     * @param operationType
+     * @param srcs
+     * @param dst
+     */
+    public static void logFileOperation(
+            Context context,
+            @OpType int operationType,
+            List<DocumentInfo> srcs,
+            @Nullable DocumentInfo dst) {
+        ProviderCounts counts = countProviders(srcs, dst);
+
+        if (counts.intraProvider > 0) {
+            logIntraProviderFileOps(context, dst.authority, operationType);
+        }
+        if (counts.systemProvider > 0) {
+            // Log file operations on system providers.
+            logInterProviderFileOps(context, COUNT_FILEOP_SYSTEM, dst, operationType);
+        }
+        if (counts.externalProvider > 0) {
+            // Log file operations on external providers.
+            logInterProviderFileOps(context, COUNT_FILEOP_EXTERNAL, dst, operationType);
+        }
+    }
+
+    /**
+     * Logs some kind of file operation error. Call this when a file operation (e.g. copy, delete)
+     * fails.
+     *
+     * @param context
+     * @param operationType
+     * @param failedFiles
+     */
+    public static void logFileOperationErrors(Context context, @OpType int operationType,
+            List<DocumentInfo> failedFiles) {
+        ProviderCounts counts = countProviders(failedFiles, null);
+
+        @FileOp int opCode = FILEOP_OTHER_ERROR;
+        switch (operationType) {
+            case FileOperationService.OPERATION_COPY:
+                opCode = FILEOP_COPY_ERROR;
+                break;
+            case FileOperationService.OPERATION_DELETE:
+                opCode = FILEOP_DELETE_ERROR;
+                break;
+            case FileOperationService.OPERATION_MOVE:
+                opCode = FILEOP_MOVE_ERROR;
+                break;
+        }
+        if (counts.systemProvider > 0) {
+            logHistogram(context, COUNT_FILEOP_SYSTEM, opCode);
+        }
+        if (counts.externalProvider > 0) {
+            logHistogram(context, COUNT_FILEOP_EXTERNAL, opCode);
+        }
+    }
+
+    /**
+     * Log the cancellation of a file operation.  Call this when a Job is canceled.
+     * @param context
+     * @param operationType
+     */
+    public static void logFileOperationCancelled(Context context, @OpType int operationType) {
+        logHistogram(context, COUNT_FILEOP_CANCELED, operationType);
+    }
+
+    private static void logInterProviderFileOps(
+            Context context,
+            String histogram,
+            DocumentInfo dst,
+            @OpType int operationType) {
+        if (operationType == FileOperationService.OPERATION_DELETE) {
+            logHistogram(context, histogram, FILEOP_DELETE);
+        } else {
+            checkArgument(dst != null);
+            @Provider int providerType =
+                    isSystemProvider(dst.authority) ? PROVIDER_SYSTEM : PROVIDER_EXTERNAL;
+            logHistogram(context, histogram, getOpCode(operationType, providerType));
+        }
+    }
+
+    private static void logIntraProviderFileOps(
+            Context context, String authority, @OpType int operationType) {
+        // Find the right histogram to log to, then log the operation.
+        String histogram = isSystemProvider(authority) ? COUNT_FILEOP_SYSTEM : COUNT_FILEOP_EXTERNAL;
+        logHistogram(context, histogram, getOpCode(operationType, PROVIDER_INTRA));
+    }
+
+    /**
      * Internal method for making a MetricsLogger.count call. Increments the given counter by 1.
      *
      * @param context
@@ -167,7 +353,7 @@
      * small set of hard-coded roots (ones provided by the system). Other roots are all grouped into
      * a single ROOT_OTHER bucket.
      */
-    private static int sanitizeRoot(Uri uri) {
+    private static @Root int sanitizeRoot(Uri uri) {
         if (LauncherActivity.isLaunchUri(uri)) {
             return ROOT_NONE;
         }
@@ -192,13 +378,15 @@
                 }
             case AUTHORITY_DOWNLOADS:
                 return ROOT_DOWNLOADS;
+            case AUTHORITY_MTP:
+                return ROOT_MTP;
             default:
                 return ROOT_OTHER;
         }
     }
 
     /** @see #sanitizeRoot(Uri) */
-    private static int sanitizeRoot(RootInfo root) {
+    private static @Root int sanitizeRoot(RootInfo root) {
         if (root.isRecents()) {
             // Recents root is special and only identifiable via this method call. Other roots are
             // identified by URI.
@@ -209,7 +397,7 @@
     }
 
     /** @see #sanitizeRoot(Uri) */
-    private static int sanitizeRoot(ResolveInfo info) {
+    private static @Root int sanitizeRoot(ResolveInfo info) {
         // Log all apps under a single bucket in the roots histogram.
         return ROOT_THIRD_PARTY_APP;
     }
@@ -221,7 +409,7 @@
      * @param mimeType
      * @return
      */
-    private static int sanitizeMime(String mimeType) {
+    private static @Mime int sanitizeMime(String mimeType) {
         if (mimeType == null) {
             return MIME_NONE;
         } else if ("*/*".equals(mimeType)) {
@@ -248,4 +436,75 @@
         // Bucket all other types into one bucket.
         return MIME_OTHER;
     }
+
+    private static boolean isSystemProvider(String authority) {
+        switch (authority) {
+            case AUTHORITY_MEDIA:
+            case AUTHORITY_STORAGE:
+            case AUTHORITY_DOWNLOADS:
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * @param operation
+     * @param providerType
+     * @return An opcode, suitable for use as histogram bucket, for the given operation/provider
+     *         combination.
+     */
+    private static @FileOp int getOpCode(@OpType int operation, @Provider int providerType) {
+        switch (operation) {
+            case FileOperationService.OPERATION_COPY:
+                switch (providerType) {
+                    case PROVIDER_INTRA:
+                        return FILEOP_COPY_INTRA_PROVIDER;
+                    case PROVIDER_SYSTEM:
+                        return FILEOP_COPY_SYSTEM_PROVIDER;
+                    case PROVIDER_EXTERNAL:
+                        return FILEOP_COPY_EXTERNAL_PROVIDER;
+                }
+            case FileOperationService.OPERATION_MOVE:
+                switch (providerType) {
+                    case PROVIDER_INTRA:
+                        return FILEOP_MOVE_INTRA_PROVIDER;
+                    case PROVIDER_SYSTEM:
+                        return FILEOP_MOVE_SYSTEM_PROVIDER;
+                    case PROVIDER_EXTERNAL:
+                        return FILEOP_MOVE_EXTERNAL_PROVIDER;
+                }
+            case FileOperationService.OPERATION_DELETE:
+                return FILEOP_DELETE;
+            default:
+                Log.w(TAG, "Unrecognized operation type when logging a file operation");
+                return FILEOP_OTHER;
+        }
+    }
+
+    /**
+     * Count the given src documents and provide a tally of how many come from the same provider as
+     * the dst document (if a dst is provided), how many come from system providers, and how many
+     * come from external 3rd-party providers.
+     */
+    private static ProviderCounts countProviders(
+            List<DocumentInfo> srcs, @Nullable DocumentInfo dst) {
+        ProviderCounts counts = new ProviderCounts();
+        for (DocumentInfo doc: srcs) {
+            if (dst != null && doc.authority.equals(dst.authority)) {
+                counts.intraProvider++;
+            } else if (isSystemProvider(doc.authority)){
+                counts.systemProvider++;
+            } else {
+                counts.externalProvider++;
+            }
+        }
+        return counts;
+    }
+
+    private static class ProviderCounts {
+        int intraProvider;
+        int systemProvider;
+        int externalProvider;
+    }
 }
diff --git a/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java b/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java
index e5e66f8..7c08ba7 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java
@@ -50,6 +50,7 @@
 import android.util.Log;
 import android.webkit.MimeTypeMap;
 
+import com.android.documentsui.Metrics;
 import com.android.documentsui.R;
 import com.android.documentsui.model.DocumentInfo;
 import com.android.documentsui.model.DocumentStack;
@@ -214,10 +215,9 @@
         mBatchSize = calculateSize(mSrcs);
 
         DocumentInfo srcInfo;
-        DocumentInfo dstInfo;
+        DocumentInfo dstInfo = stack.peek();
         for (int i = 0; i < mSrcs.size() && !isCanceled(); ++i) {
             srcInfo = mSrcs.get(i);
-            dstInfo = stack.peek();
 
             // Guard unsupported recursive operation.
             if (dstInfo.equals(srcInfo) || isDescendentOf(srcInfo, dstInfo)) {
@@ -232,6 +232,7 @@
 
             processDocument(srcInfo, null, dstInfo);
         }
+        Metrics.logFileOperation(service, operationType, mSrcs, dstInfo);
     }
 
     @Override
diff --git a/packages/DocumentsUI/src/com/android/documentsui/services/DeleteJob.java b/packages/DocumentsUI/src/com/android/documentsui/services/DeleteJob.java
index 24eb987..11c3a29 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/services/DeleteJob.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/services/DeleteJob.java
@@ -25,6 +25,7 @@
 import android.os.RemoteException;
 import android.util.Log;
 
+import com.android.documentsui.Metrics;
 import com.android.documentsui.R;
 import com.android.documentsui.model.DocumentInfo;
 import com.android.documentsui.model.DocumentStack;
@@ -90,6 +91,7 @@
                 onFileFailed(doc);
             }
         }
+        Metrics.logFileOperation(service, operationType, mSrcs, null);
     }
 
     @Override
diff --git a/packages/DocumentsUI/src/com/android/documentsui/services/Job.java b/packages/DocumentsUI/src/com/android/documentsui/services/Job.java
index 7b8011a..f2c8763 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/services/Job.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/services/Job.java
@@ -41,6 +41,7 @@
 import android.util.Log;
 
 import com.android.documentsui.FilesActivity;
+import com.android.documentsui.Metrics;
 import com.android.documentsui.OperationDialogFragment;
 import com.android.documentsui.R;
 import com.android.documentsui.Shared;
@@ -114,6 +115,7 @@
             // ensure the service is shut down and notifications
             // shown/closed.
             Log.e(TAG, "Operation failed due to an exception.", e);
+            Metrics.logFileOperationErrors(service, operationType, failedFiles);
         } finally {
             listener.onFinished(this);
         }
@@ -150,6 +152,7 @@
 
     final void cancel() {
         mCanceled = true;
+        Metrics.logFileOperationCancelled(service, operationType);
     }
 
     final boolean isCanceled() {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/FingerprintUnlockController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/FingerprintUnlockController.java
index 7135836..1c9d937 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/FingerprintUnlockController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/FingerprintUnlockController.java
@@ -190,7 +190,8 @@
                         FINGERPRINT_COLLAPSE_SPEEDUP_FACTOR);
                 break;
             case MODE_WAKE_AND_UNLOCK_PULSING:
-                mPhoneStatusBar.updateMediaMetaData(false /* metaDataChanged */);
+                mPhoneStatusBar.updateMediaMetaData(false /* metaDataChanged */, 
+                        true /* allowEnterAnimation */);
                 // Fall through.
             case MODE_WAKE_AND_UNLOCK:
                 mStatusBarWindowManager.setStatusBarFocusable(false);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index 0a03a98..2b961fd 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -26,6 +26,7 @@
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.app.StatusBarManager;
+import android.app.WallpaperManager;
 import android.content.BroadcastReceiver;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
@@ -66,6 +67,7 @@
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.SystemClock;
+import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.Vibrator;
@@ -242,6 +244,11 @@
      * Prudently disable QS and notifications.  */
     private static final boolean ONLY_CORE_APPS;
 
+    /** If true, the lockscreen will show a distinct wallpaper */
+    private static final boolean ENABLE_LOCKSCREEN_WALLPAPER =
+            !ActivityManager.isLowRamDeviceStatic()
+                    && SystemProperties.getBoolean("debug.lockscreen_wallpaper", false);
+
     /* If true, the device supports freeform window management.
      * This affects the status bar UI. */
     private static final boolean FREEFORM_WINDOW_MANAGEMENT;
@@ -459,7 +466,7 @@
             if (state != null) {
                 if (!isPlaybackActive(state.getState())) {
                     clearCurrentMediaNotification();
-                    updateMediaMetaData(true);
+                    updateMediaMetaData(true, true);
                 }
             }
         }
@@ -469,7 +476,7 @@
             super.onMetadataChanged(metadata);
             if (DEBUG_MEDIA) Log.v(TAG, "DEBUG_MEDIA: onMetadataChanged: " + metadata);
             mMediaMetadata = metadata;
-            updateMediaMetaData(true);
+            updateMediaMetaData(true, true);
         }
     };
 
@@ -1313,7 +1320,7 @@
         }
         if (key.equals(mMediaNotificationKey)) {
             clearCurrentMediaNotification();
-            updateMediaMetaData(true);
+            updateMediaMetaData(true, true);
         }
         if (deferRemoval) {
             mLatestRankingMap = ranking;
@@ -1704,7 +1711,7 @@
         if (metaDataChanged) {
             updateNotifications();
         }
-        updateMediaMetaData(metaDataChanged);
+        updateMediaMetaData(metaDataChanged, true);
     }
 
     private int getMediaControllerPlaybackState(MediaController controller) {
@@ -1763,7 +1770,7 @@
     /**
      * Refresh or remove lockscreen artwork from media metadata.
      */
-    public void updateMediaMetaData(boolean metaDataChanged) {
+    public void updateMediaMetaData(boolean metaDataChanged, boolean allowEnterAnimation) {
         if (!SHOW_LOCKSCREEN_MEDIA_ARTWORK) return;
 
         if (mBackdrop == null) return; // called too early
@@ -1788,6 +1795,12 @@
                 // might still be null
             }
         }
+        if (ENABLE_LOCKSCREEN_WALLPAPER && artworkBitmap == null) {
+            // TODO: use real lockscreen wallpaper.
+            WallpaperManager wallpaperManager = mContext
+                    .getSystemService(WallpaperManager.class);
+            artworkBitmap = wallpaperManager.getBitmap();
+        }
 
         final boolean hasArtwork = artworkBitmap != null;
 
@@ -1797,7 +1810,12 @@
             // time to show some art!
             if (mBackdrop.getVisibility() != View.VISIBLE) {
                 mBackdrop.setVisibility(View.VISIBLE);
-                mBackdrop.animate().alpha(1f);
+                if (allowEnterAnimation) {
+                    mBackdrop.animate().alpha(1f);
+                } else {
+                    mBackdrop.animate().cancel();
+                    mBackdrop.setAlpha(1f);
+                }
                 metaDataChanged = true;
                 if (DEBUG_MEDIA) {
                     Log.v(TAG, "DEBUG_MEDIA: Fading in album artwork");
@@ -3021,6 +3039,10 @@
             else if (Intent.ACTION_SCREEN_ON.equals(action)) {
                 notifyNavigationBarScreenOn(true);
             }
+            else if (ENABLE_LOCKSCREEN_WALLPAPER
+                    && Intent.ACTION_WALLPAPER_CHANGED.equals(action)) {
+                updateMediaMetaData(true, true);
+            }
         }
     };
 
@@ -3042,7 +3064,7 @@
                 }
             } else if (ACTION_FAKE_ARTWORK.equals(action)) {
                 if (DEBUG_MEDIA_FAKE_ARTWORK) {
-                    updateMediaMetaData(true);
+                    updateMediaMetaData(true, true);
                 }
             }
         }
@@ -3106,7 +3128,7 @@
         resetUserSetupObserver();
         setControllerUsers();
         clearCurrentMediaNotification();
-        updateMediaMetaData(true);
+        updateMediaMetaData(true, false);
     }
 
     private void setControllerUsers() {
@@ -3525,7 +3547,7 @@
         runLaunchTransitionEndRunnable();
         mLaunchTransitionFadingAway = false;
         mScrimController.forceHideScrims(false /* hide */);
-        updateMediaMetaData(true /* metaDataChanged */);
+        updateMediaMetaData(true /* metaDataChanged */, true);
     }
 
     public boolean isCollapsing() {
@@ -3560,7 +3582,7 @@
                     beforeFading.run();
                 }
                 mScrimController.forceHideScrims(true /* hide */);
-                updateMediaMetaData(false);
+                updateMediaMetaData(false, true);
                 mNotificationPanel.setAlpha(1);
                 mNotificationPanel.animate()
                         .alpha(0)
@@ -3762,7 +3784,7 @@
         updateStackScrollerState(goingToFullShade, fromShadeLocked);
         updateNotifications();
         checkBarModes();
-        updateMediaMetaData(false);
+        updateMediaMetaData(false, mState != StatusBarState.KEYGUARD);
         mKeyguardMonitor.notifyKeyguardState(mStatusBarKeyguardViewManager.isShowing(),
                 mStatusBarKeyguardViewManager.isSecure());
     }
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 7dd93d8..69cc39b 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -8875,7 +8875,7 @@
     }
 
     @Override
-    public void setTaskResizeable(int taskId, boolean resizeable) {
+    public void setTaskResizeable(int taskId, int resizeableMode) {
         synchronized (this) {
             final TaskRecord task = mStackSupervisor.anyTaskForIdLocked(
                     taskId, !RESTORE_FROM_RECENTS, INVALID_STACK_ID);
@@ -8883,9 +8883,9 @@
                 Slog.w(TAG, "setTaskResizeable: taskId=" + taskId + " not found");
                 return;
             }
-            if (task.mResizeable != resizeable) {
-                task.mResizeable = resizeable;
-                mWindowManager.setTaskResizeable(taskId, resizeable);
+            if (task.mResizeMode != resizeableMode) {
+                task.mResizeMode = resizeableMode;
+                mWindowManager.setTaskResizeable(taskId, resizeableMode);
                 mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
                 mStackSupervisor.resumeFocusedStackTopActivityLocked();
             }
@@ -8904,10 +8904,10 @@
                     return;
                 }
                 int stackId = task.stack.mStackId;
-                // First, check if this is a non-resizeble task in docked stack or if the task size
-                // is affected by the docked stack changing size. If so, instead of resizing, we
-                // can only scroll the task. No need to update configuration.
-                if (bounds != null && !task.mResizeable
+                // We allow the task to scroll instead of resizing if this is a non-resizeable task
+                // in crop windows resize mode or if the task size is affected by the docked stack
+                // changing size. No need to update configuration.
+                if (bounds != null && task.inCropWindowsResizeMode()
                         && mStackSupervisor.isStackDockedInEffect(stackId)) {
                     mWindowManager.scrollTask(task.taskId, bounds);
                     return;
@@ -12164,6 +12164,7 @@
             mWaitForDebugger = mOrigWaitForDebugger = waitForDebugger;
             mAlwaysFinishActivities = alwaysFinishActivities;
             mForceResizableActivities = forceResizable;
+            mWindowManager.setForceResizableTasks(mForceResizableActivities);
             mSupportsFreeformWindowManagement = freeformWindowManagement || forceResizable;
             mSupportsPictureInPicture = supportsPictureInPicture || forceResizable;
             // This happens before any activities are started, so we can
diff --git a/services/core/java/com/android/server/am/ActivityRecord.java b/services/core/java/com/android/server/am/ActivityRecord.java
index d1fcd3b..133ac38 100755
--- a/services/core/java/com/android/server/am/ActivityRecord.java
+++ b/services/core/java/com/android/server/am/ActivityRecord.java
@@ -19,8 +19,6 @@
 import static android.app.ActivityManager.StackId;
 import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
 import static android.content.pm.ActivityInfo.FLAG_ALWAYS_FOCUSABLE;
-import static android.content.pm.ActivityInfo.RESIZE_MODE_CROP_WINDOWS;
-import static android.content.pm.ActivityInfo.RESIZE_MODE_RESIZEABLE;
 import static android.content.pm.ActivityInfo.RESIZE_MODE_RESIZEABLE_AND_PIPABLE;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CONFIGURATION;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SAVED_STATE;
@@ -758,18 +756,13 @@
     }
 
     boolean isResizeable() {
-        return !isHomeActivity() && (info.resizeMode == RESIZE_MODE_RESIZEABLE
-                || info.resizeMode == RESIZE_MODE_RESIZEABLE_AND_PIPABLE);
+        return !isHomeActivity() && ActivityInfo.isResizeableMode(info.resizeMode);
     }
 
     boolean supportsPictureInPicture() {
         return !isHomeActivity() && info.resizeMode == RESIZE_MODE_RESIZEABLE_AND_PIPABLE;
     }
 
-    boolean cropAppWindows() {
-        return !isHomeActivity() && info.resizeMode == RESIZE_MODE_CROP_WINDOWS;
-    }
-
     boolean isAlwaysFocusable() {
         return (info.flags & FLAG_ALWAYS_FOCUSABLE) != 0;
     }
diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index 3e99558..dac0f7d0 100644
--- a/services/core/java/com/android/server/am/ActivityStack.java
+++ b/services/core/java/com/android/server/am/ActivityStack.java
@@ -1410,10 +1410,11 @@
         }
 
         if (mStackId == DOCKED_STACK_ID) {
-            // Docked stack is always visible, except in the case where the top running activity in
-            // the focus stack doesn't support any form of resizing.
+            // Docked stack is always visible, except in the case where the top running activity
+            // task in the focus stack doesn't support any form of resizing.
             final ActivityRecord r = focusedStack.topRunningActivityLocked();
-            return r == null || r.isResizeable() || r.cropAppWindows()
+            final TaskRecord task = r != null ? r.task : null;
+            return task == null || task.isResizeable() || task.inCropWindowsResizeMode()
                     ? STACK_VISIBLE : STACK_INVISIBLE;
         }
 
@@ -4751,7 +4752,7 @@
         // add the task to stack first, mTaskPositioner might need the stack association
         addTask(task, toTop, "createTaskRecord");
         final boolean isLockscreenShown = mService.mLockScreenShown == LOCK_SCREEN_SHOWN;
-        if (!layoutTaskInStack(task, info.layout) && mBounds != null && task.mResizeable
+        if (!layoutTaskInStack(task, info.layout) && mBounds != null && task.isResizeable()
                 && !isLockscreenShown) {
             task.updateOverrideConfiguration(mBounds);
         }
@@ -4816,8 +4817,7 @@
                 r.task.taskId, mStackId, r.info.screenOrientation, r.fullscreen,
                 (r.info.flags & FLAG_SHOW_FOR_ALL_USERS) != 0, r.userId, r.info.configChanges,
                 task.voiceSession != null, r.mLaunchTaskBehind, bounds, task.mOverrideConfig,
-                r.cropAppWindows() | r.isResizeable(), r.isAlwaysFocusable());
-        mWindowManager.setTaskResizeable(task.taskId, task.mResizeable);
+                task.mResizeMode, r.isAlwaysFocusable(), task.isHomeTask());
         r.taskConfigOverride = task.mOverrideConfig;
     }
 
@@ -4869,9 +4869,8 @@
 
     private void setAppTask(ActivityRecord r, TaskRecord task) {
         final Rect bounds = task.updateOverrideConfigurationFromLaunchBounds();
-        mWindowManager.setAppTask(
-                r.appToken, task.taskId, mStackId, bounds, task.mOverrideConfig);
-        mWindowManager.setTaskResizeable(task.taskId, task.mResizeable);
+        mWindowManager.setAppTask(r.appToken, task.taskId, mStackId, bounds, task.mOverrideConfig,
+                task.mResizeMode, task.isHomeTask());
         r.taskConfigOverride = task.mOverrideConfig;
     }
 
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 11dd8a3..1660dda 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -119,6 +119,7 @@
 import static android.content.Intent.FLAG_ACTIVITY_MULTIPLE_TASK;
 import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
 import static android.content.pm.ActivityInfo.FLAG_SHOW_FOR_ALL_USERS;
+import static android.content.pm.ActivityInfo.RESIZE_MODE_UNRESIZEABLE;
 import static android.content.pm.PackageManager.PERMISSION_GRANTED;
 import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
@@ -1713,7 +1714,7 @@
             return;
         }
 
-        if (task.mResizeable && options != null) {
+        if (task.isResizeable() && options != null) {
             int stackId = options.getLaunchStackId();
             if (canUseActivityOptionsLaunchBounds(options, stackId)) {
                 final Rect bounds = TaskRecord.validateBounds(options.getLaunchBounds());
@@ -1895,10 +1896,10 @@
         mTmpBounds.clear();
         mTmpConfigs.clear();
         mTmpInsetBounds.clear();
-        ArrayList<TaskRecord> tasks = stack.getAllTasks();
+        final ArrayList<TaskRecord> tasks = stack.getAllTasks();
         for (int i = tasks.size() - 1; i >= 0; i--) {
-            TaskRecord task = tasks.get(i);
-            if (task.mResizeable) {
+            final TaskRecord task = tasks.get(i);
+            if (task.isResizeable()) {
                 if (stack.mStackId == FREEFORM_WORKSPACE_STACK_ID) {
                     // For freeform stack we don't adjust the size of the tasks to match that
                     // of the stack, but we do try to make sure the tasks are still contained
@@ -2010,7 +2011,7 @@
     }
 
     boolean resizeTaskLocked(TaskRecord task, Rect bounds, int resizeMode, boolean preserveWindow) {
-        if (!task.mResizeable) {
+        if (!task.isResizeable()) {
             Slog.w(TAG, "resizeTask: task " + task + " not resizeable.");
             return true;
         }
@@ -2189,13 +2190,13 @@
         final boolean wasFront = isFrontStack(prevStack)
                 && (prevStack.topRunningActivityLocked() == r);
 
-        final boolean resizeable = task.mResizeable;
+        final int resizeMode = task.mResizeMode;
         // Temporarily disable resizeablility of task we are moving. We don't want it to be resized
         // if a docked stack is created below which will lead to the stack we are moving from and
         // its resizeable tasks being resized.
-        task.mResizeable = false;
+        task.mResizeMode = RESIZE_MODE_UNRESIZEABLE;
         final ActivityStack stack = getStack(stackId, CREATE_IF_NEEDED, toTop);
-        task.mResizeable = resizeable;
+        task.mResizeMode = resizeMode;
         mWindowManager.moveTaskToStack(task.taskId, stack.mStackId, toTop);
         stack.addTask(task, toTop, reason);
 
@@ -2266,7 +2267,7 @@
         ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
         resumeFocusedStackTopActivityLocked();
 
-        if (!task.mResizeable && isStackDockedInEffect(stackId)) {
+        if (!task.isResizeable() && isStackDockedInEffect(stackId)) {
             showNonResizeableDockToast(taskId);
         }
     }
diff --git a/services/core/java/com/android/server/am/ActivityStarter.java b/services/core/java/com/android/server/am/ActivityStarter.java
index 7b7359f..22b8462 100644
--- a/services/core/java/com/android/server/am/ActivityStarter.java
+++ b/services/core/java/com/android/server/am/ActivityStarter.java
@@ -1004,7 +1004,7 @@
         }
         mSupervisor.updateUserStackLocked(mStartActivity.userId, mTargetStack);
 
-        if (!mStartActivity.task.mResizeable
+        if (!mStartActivity.task.isResizeable()
                 && mSupervisor.isStackDockedInEffect(mTargetStack.mStackId)) {
             mSupervisor.showNonResizeableDockToast(mStartActivity.task.taskId);
         }
@@ -1721,7 +1721,7 @@
 
     Rect getOverrideBounds(ActivityRecord r, ActivityOptions options, TaskRecord inTask) {
         Rect newBounds = null;
-        if (options != null && (r.isResizeable() || (inTask != null && inTask.mResizeable))) {
+        if (options != null && (r.isResizeable() || (inTask != null && inTask.isResizeable()))) {
             if (mSupervisor.canUseActivityOptionsLaunchBounds(
                     options, options.getLaunchStackId())) {
                 newBounds = TaskRecord.validateBounds(options.getLaunchBounds());
diff --git a/services/core/java/com/android/server/am/TaskRecord.java b/services/core/java/com/android/server/am/TaskRecord.java
index c9d4595..c14cfef 100644
--- a/services/core/java/com/android/server/am/TaskRecord.java
+++ b/services/core/java/com/android/server/am/TaskRecord.java
@@ -24,8 +24,9 @@
 import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
 import static android.content.Intent.FLAG_ACTIVITY_NEW_DOCUMENT;
 import static android.content.Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS;
+import static android.content.pm.ActivityInfo.RESIZE_MODE_CROP_WINDOWS;
 import static android.content.pm.ActivityInfo.RESIZE_MODE_RESIZEABLE;
-import static android.content.pm.ActivityInfo.RESIZE_MODE_RESIZEABLE_AND_PIPABLE;
+import static android.content.pm.ActivityInfo.RESIZE_MODE_UNRESIZEABLE;
 import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_ALWAYS;
 import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_DEFAULT;
 import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_IF_WHITELISTED;
@@ -118,7 +119,10 @@
     private static final String ATTR_TASK_AFFILIATION_COLOR = "task_affiliation_color";
     private static final String ATTR_CALLING_UID = "calling_uid";
     private static final String ATTR_CALLING_PACKAGE = "calling_package";
+    // TODO(b/26847884): Currently needed while migrating to resize_mode.
+    // Can be removed at some later point.
     private static final String ATTR_RESIZEABLE = "resizeable";
+    private static final String ATTR_RESIZE_MODE = "resize_mode";
     private static final String ATTR_PRIVILEGED = "privileged";
     private static final String ATTR_NON_FULLSCREEN_BOUNDS = "non_fullscreen_bounds";
 
@@ -156,8 +160,8 @@
 
     int numFullscreen;      // Number of fullscreen activities.
 
-    boolean mResizeable;    // Activities in the task resizeable. Based on the resizable setting of
-                            // the root activity.
+    int mResizeMode;        // The resize mode of this task and its activities.
+                            // Based on the {@link ActivityInfo#resizeMode} of the root activity.
     int mLockTaskMode;      // Which tasklock mode to launch this task in. One of
                             // ActivityManager.LOCK_TASK_LAUNCH_MODE_*
     private boolean mPrivileged;    // The root activity application of this task holds
@@ -309,7 +313,7 @@
             boolean neverRelinquishIdentity, TaskDescription _lastTaskDescription,
             TaskThumbnailInfo lastThumbnailInfo, int taskAffiliation, int prevTaskId,
             int nextTaskId, int taskAffiliationColor, int callingUid, String callingPackage,
-            boolean resizeable, boolean privileged, boolean realActivitySuspended) {
+            int resizeMode, boolean privileged, boolean _realActivitySuspended) {
         mService = service;
         mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX +
                 TaskPersister.IMAGE_EXTENSION;
@@ -323,7 +327,7 @@
         voiceSession = null;
         voiceInteractor = null;
         realActivity = _realActivity;
-        realActivitySuspended = realActivitySuspended;
+        realActivitySuspended = _realActivitySuspended;
         origActivity = _origActivity;
         rootWasReset = _rootWasReset;
         isAvailable = true;
@@ -346,7 +350,7 @@
         mNextAffiliateTaskId = nextTaskId;
         mCallingUid = callingUid;
         mCallingPackage = callingPackage;
-        mResizeable = resizeable || mService.mForceResizableActivities;
+        mResizeMode = resizeMode;
         mPrivileged = privileged;
         ActivityInfo info = (mActivities.size() > 0) ? mActivities.get(0).info : null;
         mMinimalSize = info != null && info.layout != null ? info.layout.minimalSize : -1;
@@ -448,9 +452,7 @@
         } else {
             autoRemoveRecents = false;
         }
-        mResizeable = info.resizeMode == RESIZE_MODE_RESIZEABLE
-                || info.resizeMode == RESIZE_MODE_RESIZEABLE_AND_PIPABLE
-                || mService.mForceResizableActivities;
+        mResizeMode = info.resizeMode;
         mLockTaskMode = info.lockTaskLaunchMode;
         mPrivileged = (info.applicationInfo.privateFlags & PRIVATE_FLAG_PRIVILEGED) != 0;
         setLockTaskAuth();
@@ -705,9 +707,6 @@
         // Only set this based on the first activity
         if (mActivities.isEmpty()) {
             taskType = r.mActivityType;
-            if (taskType == HOME_ACTIVITY_TYPE && mService.mForceResizableActivities) {
-                mResizeable = r.isResizeable();
-            }
             isPersistable = r.isPersistable();
             mCallingUid = r.launchedFromUid;
             mCallingPackage = r.launchedFromPackage;
@@ -935,6 +934,15 @@
         return mTaskToReturnTo == HOME_ACTIVITY_TYPE || mTaskToReturnTo == RECENTS_ACTIVITY_TYPE;
     }
 
+    boolean isResizeable() {
+        return !isHomeTask() && (mService.mForceResizableActivities
+                || ActivityInfo.isResizeableMode(mResizeMode));
+    }
+
+    boolean inCropWindowsResizeMode() {
+        return !isResizeable() && mResizeMode == RESIZE_MODE_CROP_WINDOWS;
+    }
+
     /**
      * Find the activity in the history stack within the given task.  Returns
      * the index within the history at which it's found, or < 0 if not found.
@@ -1073,7 +1081,7 @@
         out.attribute(null, ATTR_NEXT_AFFILIATION, String.valueOf(mNextAffiliateTaskId));
         out.attribute(null, ATTR_CALLING_UID, String.valueOf(mCallingUid));
         out.attribute(null, ATTR_CALLING_PACKAGE, mCallingPackage == null ? "" : mCallingPackage);
-        out.attribute(null, ATTR_RESIZEABLE, String.valueOf(mResizeable));
+        out.attribute(null, ATTR_RESIZE_MODE, String.valueOf(mResizeMode));
         out.attribute(null, ATTR_PRIVILEGED, String.valueOf(mPrivileged));
         if (mLastNonFullscreenBounds != null) {
             out.attribute(
@@ -1139,7 +1147,7 @@
         int nextTaskId = INVALID_TASK_ID;
         int callingUid = -1;
         String callingPackage = "";
-        boolean resizeable = false;
+        int resizeMode = RESIZE_MODE_UNRESIZEABLE;
         boolean privileged = false;
         Rect bounds = null;
 
@@ -1200,7 +1208,10 @@
             } else if (ATTR_CALLING_PACKAGE.equals(attrName)) {
                 callingPackage = attrValue;
             } else if (ATTR_RESIZEABLE.equals(attrName)) {
-                resizeable = Boolean.valueOf(attrValue);
+                resizeMode = Boolean.valueOf(attrValue)
+                        ? RESIZE_MODE_RESIZEABLE : RESIZE_MODE_CROP_WINDOWS;
+            } else if (ATTR_RESIZE_MODE.equals(attrName)) {
+                resizeMode = Integer.valueOf(attrValue);
             } else if (ATTR_PRIVILEGED.equals(attrName)) {
                 privileged = Boolean.valueOf(attrValue);
             } else if (ATTR_NON_FULLSCREEN_BOUNDS.equals(attrName)) {
@@ -1264,7 +1275,7 @@
                 autoRemoveRecents, askedCompatMode, taskType, userId, effectiveUid, lastDescription,
                 activities, firstActiveTime, lastActiveTime, lastTimeOnTop, neverRelinquishIdentity,
                 taskDescription, thumbnailInfo, taskAffiliation, prevTaskId, nextTaskId,
-                taskAffiliationColor, callingUid, callingPackage, resizeable, privileged,
+                taskAffiliationColor, callingUid, callingPackage, resizeMode, privileged,
                 realActivitySuspended);
         task.updateOverrideConfiguration(bounds);
 
@@ -1404,7 +1415,7 @@
         }
 
         if (inStack.mStackId == FREEFORM_WORKSPACE_STACK_ID) {
-            if (!mResizeable) {
+            if (!isResizeable()) {
                 throw new IllegalArgumentException("Can not position non-resizeable task="
                         + this + " in stack=" + inStack);
             }
@@ -1450,8 +1461,8 @@
         final int stackId = stack.mStackId;
         if (stackId == HOME_STACK_ID
                 || stackId == FULLSCREEN_WORKSPACE_STACK_ID
-                || (stackId == DOCKED_STACK_ID && !mResizeable)) {
-            return mResizeable ? stack.mBounds : null;
+                || (stackId == DOCKED_STACK_ID && !isResizeable())) {
+            return isResizeable() ? stack.mBounds : null;
         } else if (!StackId.persistTaskBounds(stackId)) {
             return stack.mBounds;
         }
@@ -1554,12 +1565,12 @@
         if (stack != null) {
             pw.print(prefix); pw.print("stackId="); pw.println(stack.mStackId);
         }
-        pw.print(prefix); pw.print("hasBeenVisible="); pw.print(hasBeenVisible);
-                pw.print(" mResizeable="); pw.print(mResizeable);
-                pw.print(" firstActiveTime="); pw.print(lastActiveTime);
-                pw.print(" lastActiveTime="); pw.print(lastActiveTime);
-                pw.print(" (inactive for ");
-                pw.print((getInactiveDuration()/1000)); pw.println("s)");
+        pw.print(prefix + "hasBeenVisible=" + hasBeenVisible);
+                pw.print(" mResizeMode=" + ActivityInfo.resizeModeToString(mResizeMode));
+                pw.print(" isResizeable=" + isResizeable());
+                pw.print(" firstActiveTime=" + lastActiveTime);
+                pw.print(" lastActiveTime=" + lastActiveTime);
+                pw.println(" (inactive for " + (getInactiveDuration() / 1000) + "s)");
     }
 
     @Override
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 2732821..c0d34e8 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -125,9 +125,6 @@
     boolean mLaunchTaskBehind;
     boolean mEnteringAnimation;
 
-    // True if the windows associated with this token should be cropped to their stack bounds.
-    boolean mCropWindowsToStack;
-
     boolean mAlwaysFocusable;
 
     ArrayDeque<Rect> mFrozenBounds = new ArrayDeque<>();
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index d9667a1..4f59c62 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -21,6 +21,7 @@
 import static android.app.ActivityManager.StackId.HOME_STACK_ID;
 import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
 import static android.app.ActivityManager.RESIZE_MODE_SYSTEM_SCREEN_ROTATION;
+import static android.content.pm.ActivityInfo.RESIZE_MODE_CROP_WINDOWS;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_RESIZE;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_STACK;
@@ -32,6 +33,7 @@
 import static android.view.WindowManager.DOCKED_TOP;
 
 import android.app.ActivityManager.StackId;
+import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.graphics.Rect;
 import android.util.EventLog;
@@ -84,8 +86,8 @@
     // For handling display rotations.
     private Rect mTmpRect2 = new Rect();
 
-    // Whether the task is resizeable
-    private boolean mResizeable;
+    // Resize mode of the task. See {@link ActivityInfo#resizeMode}
+    private int mResizeMode;
 
     // Whether we need to show toast about the app being non-resizeable when it becomes visible.
     // This flag is set when a non-resizeable task is docked (or side-by-side). It's cleared
@@ -95,6 +97,8 @@
     // Whether the task is currently being drag-resized
     private boolean mDragResizing;
 
+    private boolean mHomeTask;
+
     Task(int taskId, TaskStack stack, int userId, WindowManagerService service, Rect bounds,
             Configuration config) {
         mTaskId = taskId;
@@ -156,7 +160,7 @@
         }
     }
 
-    void addAppToken(int addPos, AppWindowToken wtoken) {
+    void addAppToken(int addPos, AppWindowToken wtoken, int resizeMode, boolean homeTask) {
         final int lastPos = mAppTokens.size();
         if (addPos >= lastPos) {
             addPos = lastPos;
@@ -171,6 +175,8 @@
         mAppTokens.add(addPos, wtoken);
         wtoken.mTask = this;
         mDeferRemoval = false;
+        mResizeMode = resizeMode;
+        mHomeTask = homeTask;
     }
 
     private boolean hasAppTokensAlive() {
@@ -319,12 +325,21 @@
         out.set(mTempInsetBounds);
     }
 
-    void setResizeable(boolean resizeable) {
-        mResizeable = resizeable;
+    void setResizeable(int resizeMode) {
+        mResizeMode = resizeMode;
     }
 
     boolean isResizeable() {
-        return mResizeable;
+        return !mHomeTask
+                && (ActivityInfo.isResizeableMode(mResizeMode) || mService.mForceResizableTasks);
+    }
+
+    boolean cropWindowsToStackBounds() {
+        return !mHomeTask && (isResizeable() || mResizeMode == RESIZE_MODE_CROP_WINDOWS);
+    }
+
+    private boolean inCropWindowsResizeMode() {
+        return !mHomeTask && !isResizeable() && mResizeMode == RESIZE_MODE_CROP_WINDOWS;
     }
 
     boolean resizeLocked(Rect bounds, Configuration configuration, boolean forced) {
@@ -619,7 +634,7 @@
     }
 
     boolean isTwoFingerScrollMode() {
-        return isDockedInEffect() && !isResizeable();
+        return inCropWindowsResizeMode() && isDockedInEffect();
     }
 
     WindowState getTopVisibleAppMainWindow() {
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index e0e44dc..f93b495 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -114,7 +114,6 @@
 import android.view.animation.Animation;
 import android.view.inputmethod.InputMethodManagerInternal;
 import android.widget.Toast;
-
 import com.android.internal.R;
 import com.android.internal.app.IAssistScreenshotReceiver;
 import com.android.internal.os.IResultReceiver;
@@ -220,8 +219,8 @@
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER_LIGHT;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_MOVEMENT;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_TRACE;
-import static com.android.server.wm.WindowManagerDebugConfig.SHOW_STACK_CRAWLS;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_LIGHT_TRANSACTIONS;
+import static com.android.server.wm.WindowManagerDebugConfig.SHOW_STACK_CRAWLS;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_SURFACE_ALLOC;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_VERBOSE_TRANSACTIONS;
@@ -492,6 +491,8 @@
 
     private final SparseIntArray mTmpTaskIds = new SparseIntArray();
 
+    boolean mForceResizableTasks = false;
+
     int getDragLayerLocked() {
         return mPolicy.windowTypeToLayerLw(LayoutParams.TYPE_DRAG) * TYPE_LAYER_MULTIPLIER
                 + TYPE_LAYER_OFFSET;
@@ -1892,6 +1893,12 @@
                             + attrs.token + ".  Aborting.");
                     return WindowManagerGlobal.ADD_BAD_APP_TOKEN;
                 }
+            } else if (type == TYPE_QS_DIALOG) {
+                if (token.windowType != TYPE_QS_DIALOG) {
+                    Slog.w(TAG_WM, "Attempted to add QS dialog window with bad token "
+                            + attrs.token + ".  Aborting.");
+                    return WindowManagerGlobal.ADD_BAD_APP_TOKEN;
+                }
             } else if (token.appWindowToken != null) {
                 Slog.w(TAG_WM, "Non-null appWindowToken for system window of type=" + type);
                 // It is not valid to use an app token with other system types; we will
@@ -3214,8 +3221,8 @@
     public void addAppToken(int addPos, IApplicationToken token, int taskId, int stackId,
             int requestedOrientation, boolean fullscreen, boolean showForAllUsers, int userId,
             int configChanges, boolean voiceInteraction, boolean launchTaskBehind,
-            Rect taskBounds, Configuration config, boolean cropWindowsToStack,
-            boolean alwaysFocusable) {
+            Rect taskBounds, Configuration config, int taskResizeMode, boolean alwaysFocusable,
+            boolean homeTask) {
         if (!checkCallingPermission(android.Manifest.permission.MANAGE_APP_TOKENS,
                 "addAppToken()")) {
             throw new SecurityException("Requires MANAGE_APP_TOKENS permission");
@@ -3249,7 +3256,6 @@
             atoken.layoutConfigChanges = (configChanges &
                     (ActivityInfo.CONFIG_SCREEN_SIZE | ActivityInfo.CONFIG_ORIENTATION)) != 0;
             atoken.mLaunchTaskBehind = launchTaskBehind;
-            atoken.mCropWindowsToStack = cropWindowsToStack;
             atoken.mAlwaysFocusable = alwaysFocusable;
             if (DEBUG_TOKEN_MOVEMENT || DEBUG_ADD_REMOVE) Slog.v(TAG_WM, "addAppToken: " + atoken
                     + " to stack=" + stackId + " task=" + taskId + " at " + addPos);
@@ -3258,7 +3264,7 @@
             if (task == null) {
                 task = createTaskLocked(taskId, stackId, userId, atoken, taskBounds, config);
             }
-            task.addAppToken(addPos, atoken);
+            task.addAppToken(addPos, atoken, taskResizeMode, homeTask);
 
             mTokenMap.put(token.asBinder(), atoken);
 
@@ -3269,8 +3275,8 @@
     }
 
     @Override
-    public void setAppTask(
-            IBinder token, int taskId, int stackId, Rect taskBounds, Configuration config) {
+    public void setAppTask(IBinder token, int taskId, int stackId, Rect taskBounds,
+            Configuration config, int taskResizeMode, boolean homeTask) {
         if (!checkCallingPermission(android.Manifest.permission.MANAGE_APP_TOKENS,
                 "setAppTask()")) {
             throw new SecurityException("Requires MANAGE_APP_TOKENS permission");
@@ -3290,7 +3296,7 @@
                 newTask = createTaskLocked(
                         taskId, stackId, oldTask.mUserId, atoken, taskBounds, config);
             }
-            newTask.addAppToken(Integer.MAX_VALUE /* at top */, atoken);
+            newTask.addAppToken(Integer.MAX_VALUE /* at top */, atoken, taskResizeMode, homeTask);
         }
     }
 
@@ -10326,15 +10332,21 @@
         }
     }
 
-    public void setTaskResizeable(int taskId, boolean resizeable) {
+    public void setTaskResizeable(int taskId, int resizeMode) {
         synchronized (mWindowMap) {
-            Task task = mTaskIdToTask.get(taskId);
+            final Task task = mTaskIdToTask.get(taskId);
             if (task != null) {
-                task.setResizeable(resizeable);
+                task.setResizeable(resizeMode);
             }
         }
     }
 
+    public void setForceResizableTasks(boolean forceResizableTasks) {
+        synchronized (mWindowMap) {
+            mForceResizableTasks = forceResizableTasks;
+        }
+    }
+
     static int dipToPixel(int dip, DisplayMetrics displayMetrics) {
         return (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip, displayMetrics);
     }
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 4dd2b4d..10a2a6c 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -1002,11 +1002,12 @@
      * @param bounds The rect which gets the bounds.
      */
     void getVisibleBounds(Rect bounds) {
-        boolean intersectWithStackBounds = mAppToken != null && mAppToken.mCropWindowsToStack;
+        final Task task = getTask();
+        boolean intersectWithStackBounds = task != null && task.cropWindowsToStackBounds();
         bounds.setEmpty();
         mTmpRect.setEmpty();
         if (intersectWithStackBounds) {
-            final TaskStack stack = getStack();
+            final TaskStack stack = task.mStack;
             if (stack != null) {
                 stack.getDimBounds(mTmpRect);
             } else {
@@ -1932,11 +1933,12 @@
     }
 
     void cropRegionToStackBoundsIfNeeded(Region region) {
-        if (mAppToken == null || !mAppToken.mCropWindowsToStack) {
+        final Task task = getTask();
+        if (task == null || !task.cropWindowsToStackBounds()) {
             return;
         }
 
-        final TaskStack stack = getStack();
+        final TaskStack stack = task.mStack;
         if (stack == null) {
             return;
         }
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index 428ab7a..d21a3b4 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -1171,9 +1171,8 @@
     }
 
     private void adjustCropToStackBounds(WindowState w, Rect clipRect, boolean isFreeformResizing) {
-        final AppWindowToken appToken = w.mAppToken;
         final Task task = w.getTask();
-        if (task == null || !appToken.mCropWindowsToStack) {
+        if (task == null || !task.cropWindowsToStackBounds()) {
             return;
         }
 
diff --git a/tests/permission/src/com/android/framework/permission/tests/WindowManagerPermissionTests.java b/tests/permission/src/com/android/framework/permission/tests/WindowManagerPermissionTests.java
index b78fd49..0286506 100644
--- a/tests/permission/src/com/android/framework/permission/tests/WindowManagerPermissionTests.java
+++ b/tests/permission/src/com/android/framework/permission/tests/WindowManagerPermissionTests.java
@@ -93,7 +93,7 @@
 
         try {
             mWm.addAppToken(0, null, 0, 0, 0, false, false, 0, 0, false, false, null,
-                    Configuration.EMPTY, false, false);
+                    Configuration.EMPTY, 0, false, false);
             fail("IWindowManager.addAppToken did not throw SecurityException as"
                     + " expected");
         } catch (SecurityException e) {
@@ -103,7 +103,7 @@
         }
 
         try {
-            mWm.setAppTask(null, 0, INVALID_STACK_ID, null, null);
+            mWm.setAppTask(null, 0, INVALID_STACK_ID, null, null, 0, false);
             fail("IWindowManager.setAppGroupId did not throw SecurityException as"
                     + " expected");
         } catch (SecurityException e) {
diff --git a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
index 9f0153a..38eb5ee 100644
--- a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
+++ b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
@@ -77,7 +77,8 @@
     @Override
     public void addAppToken(int arg0, IApplicationToken arg1, int arg2, int arg3, int arg4,
             boolean arg5, boolean arg6, int arg7, int arg8, boolean arg9, boolean arg10,
-            Rect arg11, Configuration arg12, boolean arg13, boolean arg14) throws RemoteException {
+            Rect arg11, Configuration arg12, int arg13, boolean arg14, boolean arg15)
+            throws RemoteException {
         // TODO Auto-generated method stub
     }
 
@@ -322,7 +323,8 @@
     }
 
     @Override
-    public void setAppTask(IBinder arg0, int arg1, int arg2, Rect arg3, Configuration arg4)
+    public void setAppTask(IBinder arg0, int arg1, int arg2, Rect arg3, Configuration arg4,
+            int arg5, boolean arg6)
             throws RemoteException {
         // TODO Auto-generated method stub
     }