Improving widget transitions:

-> When a widget has no configuration activity, we bind
   and inflate it when the user picks it up. This allows
   us to smoothly transition between it's preview and
   some actual state of the widget when it is dropped.
-> When a widget has a configuration activity, we delay
   the above process until the configuration activity
   has been run at which time we transition between
   the preview and the actual widget.

Change-Id: I5265cd98400d70e5e75c3dcd21e322ed0b352d7b

1 files changed, 98 insertions, 41 deletions

diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 7d974a513..708d5d631 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -49,6 +49,7 @@ import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.database.ContentObserver;
+import android.graphics.Bitmap;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -246,6 +247,7 @@ public final class Launcher extends Activity
     private static Drawable.ConstantState[] sAppMarketIcon = new Drawable.ConstantState[2];
 
     static final ArrayList<String> sDumpLogs = new ArrayList<String>();
+    PendingAddWidgetInfo mWidgetBeingConfigured = null;
 
 
     private BubbleTextView mWaitingForResume;
@@ -498,7 +500,7 @@ public final class Launcher extends Activity
                 break;
             case REQUEST_CREATE_APPWIDGET:
                 int appWidgetId = args.intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
-                completeAddAppWidget(appWidgetId, args.container, args.screen);
+                completeAddAppWidget(appWidgetId, args.container, args.screen, null, null);
                 result = true;
                 break;
             case REQUEST_PICK_WALLPAPER:
@@ -509,10 +511,20 @@ public final class Launcher extends Activity
     }
 
     @Override
-    protected void onActivityResult(final int requestCode, int resultCode, final Intent data) {
+    protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
         boolean delayExitSpringLoadedMode = false;
+        boolean isWidgetDrop = (requestCode == REQUEST_PICK_APPWIDGET ||
+                requestCode == REQUEST_CREATE_APPWIDGET);
         mWaitingForResult = false;
 
+        // We have special handling for widgets
+        if (isWidgetDrop) {
+            int appWidgetId = data != null ?
+                    data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1) : -1;
+            completeTwoStageWidgetDrop(resultCode, appWidgetId);
+            return;
+        }
+
         // The pattern used here is that a user PICKs a specific application,
         // which, depending on the target, might need to CREATE the actual target.
 
@@ -526,26 +538,50 @@ public final class Launcher extends Activity
             args.screen = mPendingAddInfo.screen;
             args.cellX = mPendingAddInfo.cellX;
             args.cellY = mPendingAddInfo.cellY;
-
-            // If the loader is still running, defer the add until it is done.
             if (isWorkspaceLocked()) {
                 sPendingAddList.add(args);
             } else {
                 delayExitSpringLoadedMode = completeAdd(args);
             }
-        } else if ((requestCode == REQUEST_PICK_APPWIDGET ||
-                requestCode == REQUEST_CREATE_APPWIDGET) && resultCode == RESULT_CANCELED) {
-            if (data != null) {
-                // Clean up the appWidgetId if we canceled
-                int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
-                if (appWidgetId != -1) {
-                    mAppWidgetHost.deleteAppWidgetId(appWidgetId);
-                }
-            }
         }
-
+        mDragLayer.clearAnimatedView();
         // Exit spring loaded mode if necessary after cancelling the configuration of a widget
-        exitSpringLoadedDragModeDelayed((resultCode != RESULT_CANCELED), delayExitSpringLoadedMode);
+        exitSpringLoadedDragModeDelayed((resultCode != RESULT_CANCELED), delayExitSpringLoadedMode,
+                null);
+    }
+
+    private void completeTwoStageWidgetDrop(final int resultCode, final int appWidgetId) {
+        CellLayout cellLayout = (CellLayout) mWorkspace.getChildAt(mWidgetBeingConfigured.screen);
+        Runnable onCompleteRunnable = null;
+        int animationType = 0;
+
+        if (resultCode == RESULT_OK) {
+            animationType = Workspace.COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION;
+            final AppWidgetHostView layout = mAppWidgetHost.createView(this, appWidgetId,
+                    mWidgetBeingConfigured.info);
+            mWidgetBeingConfigured.boundWidget = layout;
+            onCompleteRunnable = new Runnable() {
+                @Override
+                public void run() {
+                    completeAddAppWidget(appWidgetId, mPendingAddInfo.container,
+                            mPendingAddInfo.screen, layout, null);
+                    exitSpringLoadedDragModeDelayed((resultCode != RESULT_CANCELED), false,
+                            null);
+                }
+            };
+        } else if (resultCode == RESULT_CANCELED) {
+            animationType = Workspace.CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION;
+            onCompleteRunnable = new Runnable() {
+                @Override
+                public void run() {
+                    exitSpringLoadedDragModeDelayed((resultCode != RESULT_CANCELED), false,
+                            null);
+                }
+            };
+        }
+        mWorkspace.animateExternalDrop(mWidgetBeingConfigured, cellLayout,
+                (DragView) mDragLayer.getAnimatedView(), onCompleteRunnable,
+                animationType);
     }
 
     @Override
@@ -934,8 +970,11 @@ public final class Launcher extends Activity
      * @param appWidgetId The app widget id
      * @param cellInfo The position on screen where to create the widget.
      */
-    private void completeAddAppWidget(final int appWidgetId, long container, int screen) {
-        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
+    private void completeAddAppWidget(final int appWidgetId, long container, int screen,
+            AppWidgetHostView hostView, AppWidgetProviderInfo appWidgetInfo) {
+        if (appWidgetInfo == null) {
+            appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
+        }
 
         // Calculate the grid spans needed to fit this widget
         CellLayout layout = getCellLayout(container, screen);
@@ -984,12 +1023,16 @@ public final class Launcher extends Activity
                 container, screen, cellXY[0], cellXY[1], false);
 
         if (!mRestoring) {
-            // Perform actual inflation because we're live
-            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
+            if (hostView == null) {
+                // Perform actual inflation because we're live
+                launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
+                launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
+            } else {
+                // The AppWidgetHostView has already been inflated and instantiated
+                launcherInfo.hostView = hostView;
+            }
 
-            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
             launcherInfo.hostView.setTag(launcherInfo);
-
             mWorkspace.addInScreen(launcherInfo.hostView, container, screen, cellXY[0], cellXY[1],
                     launcherInfo.spanX, launcherInfo.spanY, isWorkspaceLocked());
 
@@ -1427,9 +1470,9 @@ public final class Launcher extends Activity
         addAppWidgetImpl(appWidgetId, null);
     }
 
-    void addAppWidgetImpl(int appWidgetId, PendingAddWidgetInfo info) {
-        AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
-
+    void addAppWidgetImpl(final int appWidgetId, final PendingAddWidgetInfo info) {
+        final AppWidgetProviderInfo appWidget = info.info;
+        Runnable configurationActivity = null;
         if (appWidget.configure != null) {
             // Launch over to configure widget, if needed
             Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
@@ -1437,9 +1480,8 @@ public final class Launcher extends Activity
             intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
             if (info != null) {
                 if (info.mimeType != null && !info.mimeType.isEmpty()) {
-                    intent.putExtra(
-                            InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE,
-                            info.mimeType);
+                    intent.putExtra(InstallWidgetReceiver.
+                            EXTRA_APPWIDGET_CONFIGURATION_DATA_MIME_TYPE, info.mimeType);
 
                     final String mimeType = info.mimeType;
                     final ClipData clipData = (ClipData) info.configurationData;
@@ -1450,8 +1492,8 @@ public final class Launcher extends Activity
                             final CharSequence stringData = item.getText();
                             final Uri uriData = item.getUri();
                             final Intent intentData = item.getIntent();
-                            final String key =
-                                InstallWidgetReceiver.EXTRA_APPWIDGET_CONFIGURATION_DATA;
+                            final String key = InstallWidgetReceiver.
+                                    EXTRA_APPWIDGET_CONFIGURATION_DATA;
                             if (uriData != null) {
                                 intent.putExtra(key, uriData);
                             } else if (intentData != null) {
@@ -1464,14 +1506,13 @@ public final class Launcher extends Activity
                     }
                 }
             }
-
             startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
+            mWidgetBeingConfigured = info;
         } else {
             // Otherwise just add it
-            completeAddAppWidget(appWidgetId, info.container, info.screen);
-
+            completeAddAppWidget(appWidgetId, info.container, info.screen, info.boundWidget, appWidget);
             // Exit spring loaded mode if necessary after adding the widget
-            exitSpringLoadedDragModeDelayed(true, false);
+            exitSpringLoadedDragModeDelayed(true, false, null);
         }
     }
 
@@ -1519,9 +1560,16 @@ public final class Launcher extends Activity
             mPendingAddInfo.cellY = cell[1];
         }
 
-        int appWidgetId = getAppWidgetHost().allocateAppWidgetId();
-        AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, info.componentName);
+        AppWidgetHostView hostView = info.boundWidget;
+        int appWidgetId;
+        if (hostView != null) {
+            appWidgetId = hostView.getAppWidgetId();
+        } else {
+            appWidgetId = getAppWidgetHost().allocateAppWidgetId();
+            AppWidgetManager.getInstance(this).bindAppWidgetId(appWidgetId, info.componentName);
+        }
         addAppWidgetImpl(appWidgetId, info);
+
     }
 
     void processShortcut(Intent intent) {
@@ -2368,8 +2416,9 @@ public final class Launcher extends Activity
      * This is the opposite of showAppsCustomizeHelper.
      * @param animated If true, the transition will be animated.
      */
-    private void hideAppsCustomizeHelper(
-            State toState, final boolean animated, final boolean springLoaded) {
+    private void hideAppsCustomizeHelper(State toState, final boolean animated,
+            final boolean springLoaded, final Runnable onCompleteRunnable) {
+
         if (mStateAnimation != null) {
             mStateAnimation.cancel();
             mStateAnimation = null;
@@ -2426,6 +2475,9 @@ public final class Launcher extends Activity
                     dispatchOnLauncherTransitionEnd(fromView, animated, true);
                     dispatchOnLauncherTransitionEnd(toView, animated, true);
                     mWorkspace.hideScrollingIndicator(false);
+                    if (onCompleteRunnable != null) {
+                        onCompleteRunnable.run();
+                    }
                 }
             });
 
@@ -2453,9 +2505,13 @@ public final class Launcher extends Activity
     }
 
     void showWorkspace(boolean animated) {
+        showWorkspace(animated, null);
+    }
+
+    void showWorkspace(boolean animated, Runnable onCompleteRunnable) {
         if (mState != State.WORKSPACE) {
             mWorkspace.setVisibility(View.VISIBLE);
-            hideAppsCustomizeHelper(State.WORKSPACE, animated, false);
+            hideAppsCustomizeHelper(State.WORKSPACE, animated, false, onCompleteRunnable);
 
             // Show the search bar and hotseat
             mSearchDropTargetBar.showSearchBar(animated);
@@ -2504,13 +2560,14 @@ public final class Launcher extends Activity
 
     void enterSpringLoadedDragMode() {
         if (mState == State.APPS_CUSTOMIZE) {
-            hideAppsCustomizeHelper(State.APPS_CUSTOMIZE_SPRING_LOADED, true, true);
+            hideAppsCustomizeHelper(State.APPS_CUSTOMIZE_SPRING_LOADED, true, true, null);
             hideDockDivider();
             mState = State.APPS_CUSTOMIZE_SPRING_LOADED;
         }
     }
 
-    void exitSpringLoadedDragModeDelayed(final boolean successfulDrop, boolean extendedDelay) {
+    void exitSpringLoadedDragModeDelayed(final boolean successfulDrop, boolean extendedDelay,
+            final Runnable onCompleteRunnable) {
         if (mState != State.APPS_CUSTOMIZE_SPRING_LOADED) return;
 
         mHandler.postDelayed(new Runnable() {
@@ -2522,7 +2579,7 @@ public final class Launcher extends Activity
                     // clean up our state transition functions
                     mAppsCustomizeTabHost.setVisibility(View.GONE);
                     mSearchDropTargetBar.showSearchBar(true);
-                    showWorkspace(true);
+                    showWorkspace(true, onCompleteRunnable);
                 } else {
                     exitSpringLoadedDragMode();
                 }