2/ Add support for dragging shortcuts and tasks

- Add mechanism for creating PendingIntents to launch apps in the same
  way as starting through LauncherApps service
- Require callers starting a task launch to either be the recents
  component or have the START_TASKS_FROM_RECENTS permission

Bug: 169894807
Test: atest LauncherAppsTest
Test: atest DragDropControllerTest
Change-Id: I2f9f622b4ef7a8aba06b0854a1549a2c07cf38e1

3 files changed, 45 insertions, 1 deletions

diff --git a/core/java/android/content/ClipDescription.java b/core/java/android/content/ClipDescription.java
index dedfce6f6b96..38ab8aa2dcbc 100644
--- a/core/java/android/content/ClipDescription.java
+++ b/core/java/android/content/ClipDescription.java
@@ -64,12 +64,29 @@ public class ClipDescription implements Parcelable {
     public static final String MIMETYPE_TEXT_INTENT = "text/vnd.android.intent";
 
     /**
-     * The MIME type for an activity.
+     * The MIME type for an activity. The ClipData must include intents with required extras
+     * {@link #EXTRA_PENDING_INTENT} and {@link Intent#EXTRA_USER}, and an optional
+     * {@link #EXTRA_ACTIVITY_OPTIONS}.
      * @hide
      */
     public static final String MIMETYPE_APPLICATION_ACTIVITY = "application/vnd.android.activity";
 
     /**
+     * The MIME type for a shortcut. The ClipData must include intents with required extras
+     * {@link #EXTRA_PENDING_INTENT} and {@link Intent#EXTRA_USER}, and an optional
+     * {@link #EXTRA_ACTIVITY_OPTIONS}.
+     * @hide
+     */
+    public static final String MIMETYPE_APPLICATION_SHORTCUT = "application/vnd.android.shortcut";
+
+    /**
+     * The MIME type for a task. The ClipData must include an intent with a required extra
+     * {@link Intent#EXTRA_TASK_ID} of the task to launch.
+     * @hide
+     */
+    public static final String MIMETYPE_APPLICATION_TASK = "application/vnd.android.task";
+
+    /**
      * The MIME type for data whose type is otherwise unknown.
      * <p>
      * Per RFC 2046, the "application" media type is to be used for discrete
diff --git a/core/java/android/content/pm/ILauncherApps.aidl b/core/java/android/content/pm/ILauncherApps.aidl
index d9ecf46069cd..d688614f6caa 100644
--- a/core/java/android/content/pm/ILauncherApps.aidl
+++ b/core/java/android/content/pm/ILauncherApps.aidl
@@ -17,6 +17,7 @@
 package android.content.pm;
 
 import android.app.IApplicationThread;
+import android.app.PendingIntent;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.IntentSender;
@@ -55,6 +56,8 @@ interface ILauncherApps {
     void startActivityAsUser(in IApplicationThread caller, String callingPackage,
             String callingFeatureId, in ComponentName component, in Rect sourceBounds,
             in Bundle opts, in UserHandle user);
+    PendingIntent getActivityLaunchIntent(in ComponentName component, in Bundle opts,
+            in UserHandle user);
     void showAppDetailsAsUser(in IApplicationThread caller, String callingPackage,
             String callingFeatureId, in ComponentName component, in Rect sourceBounds,
             in Bundle opts, in UserHandle user);
diff --git a/core/java/android/content/pm/LauncherApps.java b/core/java/android/content/pm/LauncherApps.java
index b7af397cd36a..2909d66d72ff 100644
--- a/core/java/android/content/pm/LauncherApps.java
+++ b/core/java/android/content/pm/LauncherApps.java
@@ -17,6 +17,7 @@
 package android.content.pm;
 
 import static android.Manifest.permission;
+import static android.app.PendingIntent.FLAG_IMMUTABLE;
 
 import android.annotation.CallbackExecutor;
 import android.annotation.IntDef;
@@ -716,6 +717,29 @@ public class LauncherApps {
     }
 
     /**
+     * Returns a PendingIntent that would start the same activity started from
+     * {@link #startMainActivity(ComponentName, UserHandle, Rect, Bundle)}.
+     *
+     * @param component The ComponentName of the activity to launch
+     * @param startActivityOptions Options to pass to startActivity
+     * @param user The UserHandle of the profile
+     * @hide
+     */
+    @Nullable
+    public PendingIntent getMainActivityLaunchIntent(@NonNull ComponentName component,
+            @Nullable Bundle startActivityOptions, @NonNull UserHandle user) {
+        logErrorForInvalidProfileAccess(user);
+        if (DEBUG) {
+            Log.i(TAG, "GetMainActivityLaunchIntent " + component + " " + user);
+        }
+        try {
+            return mService.getActivityLaunchIntent(component, startActivityOptions, user);
+        } catch (RemoteException re) {
+            throw re.rethrowFromSystemServer();
+        }
+    }
+
+    /**
      * Returns the activity info for a given intent and user handle, if it resolves. Otherwise it
      * returns null.
      *