Add support for initiating a drag from an overlay.

This allows an overlay to create apps and shortcuts on the home screen.

Change-Id: I63ee4ef02db3f4bc89726c394fd55ad26f50452c

4 files changed, 31 insertions, 4 deletions

diff --git a/src/com/android/launcher3/ItemInfo.java b/src/com/android/launcher3/ItemInfo.java
index 8c4cefd5f..36ba6c14f 100644
--- a/src/com/android/launcher3/ItemInfo.java
+++ b/src/com/android/launcher3/ItemInfo.java
@@ -27,7 +27,7 @@ import java.io.IOException;
 /**
  * Represents an item in the launcher.
  */
-class ItemInfo {
+public class ItemInfo {
     
     static final int NO_ID = -1;
     
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 57f7d5501..b7efdb5d3 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -49,6 +49,7 @@ import android.content.SharedPreferences;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.database.ContentObserver;
@@ -4669,6 +4670,25 @@ public class Launcher extends Activity
                 DISMISS_CLING_DURATION, true);
     }
 
+    public ItemInfo createAppDragInfo(Intent appLaunchIntent) {
+        ResolveInfo ri = getPackageManager().resolveActivity(appLaunchIntent, 0);
+        if (ri == null) {
+            return null;
+        }
+        return new AppInfo(getPackageManager(), ri, mIconCache, null);
+    }
+
+    public ItemInfo createShortcutDragInfo(Intent shortcutIntent, CharSequence caption,
+            Bitmap icon) {
+        return new ShortcutInfo(shortcutIntent, caption, icon);
+    }
+
+    public void startDrag(View dragView, ItemInfo dragInfo, DragSource source) {
+        dragView.setTag(dragInfo);
+        mWorkspace.onDragStartedWithItem(dragView);
+        mWorkspace.beginDragShared(dragView, source);
+    }
+
     /**
      * To avoid managing preference change listeners for various parts of the
      * launcher we simply kill the process and let it reload from scratch.
diff --git a/src/com/android/launcher3/ShortcutInfo.java b/src/com/android/launcher3/ShortcutInfo.java
index 0998eec2b..6f38eae54 100644
--- a/src/com/android/launcher3/ShortcutInfo.java
+++ b/src/com/android/launcher3/ShortcutInfo.java
@@ -71,7 +71,14 @@ class ShortcutInfo extends ItemInfo {
     protected Intent getIntent() {
         return intent;
     }
-    
+
+    ShortcutInfo(Intent intent, CharSequence title, Bitmap icon) {
+        this();
+        this.intent = intent;
+        this.title = title;
+        mIcon = icon;
+    }
+
     public ShortcutInfo(Context context, ShortcutInfo info) {
         super(info);
         title = info.title.toString();
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index f41a1c2e5..39848176a 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -36,7 +36,7 @@ import java.util.ArrayList;
 /**
  * Various utilities shared amongst the Launcher's classes.
  */
-final class Utilities {
+public final class Utilities {
     private static final String TAG = "Launcher.Utilities";
 
     private static int sIconWidth = -1;
@@ -106,7 +106,7 @@ final class Utilities {
     /**
      * Returns a bitmap suitable for the all apps view.
      */
-    static Bitmap createIconBitmap(Drawable icon, Context context) {
+    public static Bitmap createIconBitmap(Drawable icon, Context context) {
         synchronized (sCanvas) { // we share the statics :-(
             if (sIconWidth == -1) {
                 initStatics(context);