Fix 6046544 Deleting a photo takes multiple steps and the flow is inconsistent with other deleting flows on other core apps

This CL adds a confirm dialog to delete command and removes all confirm/cancel menu items from the actionbar.

b:6046544
Change-Id: I3afe7b59b4f6d1216e192a621621f7bf544e1919

3 files changed, 42 insertions, 16 deletions

diff --git a/src/com/android/gallery3d/app/PhotoPage.java b/src/com/android/gallery3d/app/PhotoPage.java
index 78bb34cab..6be302b24 100644
--- a/src/com/android/gallery3d/app/PhotoPage.java
+++ b/src/com/android/gallery3d/app/PhotoPage.java
@@ -435,6 +435,7 @@ public class PhotoPage extends ActivityState
 
         DataManager manager = mActivity.getDataManager();
         int action = item.getItemId();
+        boolean needsConfirm = false;
         switch (action) {
             case android.R.id.home: {
                 if (mSetPathString != null) {
@@ -480,20 +481,21 @@ public class PhotoPage extends ActivityState
                 }
                 return true;
             }
+            case R.id.action_delete:
+                needsConfirm = true;
             case R.id.action_setas:
-            case R.id.action_confirm_delete:
             case R.id.action_rotate_ccw:
             case R.id.action_rotate_cw:
             case R.id.action_show_on_map:
             case R.id.action_edit:
                 mSelectionManager.deSelectAll();
                 mSelectionManager.toggle(path);
-                mMenuExecutor.onMenuClicked(item, null);
+                mMenuExecutor.onMenuClicked(item, needsConfirm, null);
                 return true;
             case R.id.action_import:
                 mSelectionManager.deSelectAll();
                 mSelectionManager.toggle(path);
-                mMenuExecutor.onMenuClicked(item,
+                mMenuExecutor.onMenuClicked(item, needsConfirm,
                         new ImportCompleteListener(mActivity));
                 return true;
             default :
diff --git a/src/com/android/gallery3d/ui/ActionModeHandler.java b/src/com/android/gallery3d/ui/ActionModeHandler.java
index 32820f327..018839314 100644
--- a/src/com/android/gallery3d/ui/ActionModeHandler.java
+++ b/src/com/android/gallery3d/ui/ActionModeHandler.java
@@ -110,6 +110,10 @@ public class ActionModeHandler implements ActionMode.Callback {
         root.lockRenderThread();
         try {
             boolean result;
+            // Give listener a chance to process this command before it's routed to
+            // ActionModeHandler, which handles command only based on the action id.
+            // Sometimes the listener may have more background information to handle
+            // an action command.
             if (mListener != null) {
                 result = mListener.onActionItemClicked(item);
                 if (result) {
@@ -118,18 +122,22 @@ public class ActionModeHandler implements ActionMode.Callback {
                 }
             }
             ProgressListener listener = null;
-            if (item.getItemId() == R.id.action_import) {
+            boolean needsConfirm = false;
+            int action = item.getItemId();
+            if (action == R.id.action_import) {
                 listener = new ImportCompleteListener(mActivity);
+            } else if (item.getItemId() == R.id.action_delete) {
+                needsConfirm = true;
             }
-            result = mMenuExecutor.onMenuClicked(item, listener);
-            if (item.getItemId() == R.id.action_select_all) {
+            mMenuExecutor.onMenuClicked(item, needsConfirm, listener);
+            if (action == R.id.action_select_all) {
                 updateSupportedOperation();
                 updateSelectionMenu();
             }
-            return result;
         } finally {
             root.unlockRenderThread();
         }
+        return true;
     }
 
     private void updateSelectionMenu() {
diff --git a/src/com/android/gallery3d/ui/MenuExecutor.java b/src/com/android/gallery3d/ui/MenuExecutor.java
index 918feead9..a0f344982 100644
--- a/src/com/android/gallery3d/ui/MenuExecutor.java
+++ b/src/com/android/gallery3d/ui/MenuExecutor.java
@@ -17,8 +17,11 @@
 package com.android.gallery3d.ui;
 
 import android.app.Activity;
+import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.content.Context;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
 import android.os.Handler;
 import android.os.Message;
@@ -172,10 +175,9 @@ public class MenuExecutor {
         return ids.get(0);
     }
 
-    public boolean onMenuClicked(MenuItem menuItem, ProgressListener listener) {
+    private void onMenuClicked(int action, ProgressListener listener) {
         int title;
         DataManager manager = mActivity.getDataManager();
-        int action = menuItem.getItemId();
         switch (action) {
             case R.id.action_select_all:
                 if (mSelectionManager.inSelectAllMode()) {
@@ -183,14 +185,12 @@ public class MenuExecutor {
                 } else {
                     mSelectionManager.selectAll();
                 }
-                return true;
             case R.id.action_crop: {
                 Path path = getSingleSelectedPath();
                 String mimeType = getMimeType(manager.getMediaType(path));
                 Intent intent = new Intent(CropImage.ACTION_CROP)
                         .setDataAndType(manager.getContentUri(path), mimeType);
                 ((Activity) mActivity).startActivity(intent);
-                return true;
             }
             case R.id.action_setas: {
                 Path path = getSingleSelectedPath();
@@ -203,9 +203,8 @@ public class MenuExecutor {
                 Activity activity = (Activity) mActivity;
                 activity.startActivity(Intent.createChooser(
                         intent, activity.getString(R.string.set_as)));
-                return true;
             }
-            case R.id.action_confirm_delete:
+            case R.id.action_delete:
                 title = R.string.delete;
                 break;
             case R.id.action_rotate_cw:
@@ -224,10 +223,27 @@ public class MenuExecutor {
                 title = R.string.Import;
                 break;
             default:
-                return false;
+                return;
         }
         startAction(action, title, listener);
-        return true;
+    }
+
+    public void onMenuClicked(MenuItem menuItem, boolean needsConfirm,
+            final ProgressListener listener) {
+        final int action = menuItem.getItemId();
+
+        if (needsConfirm) {
+            new AlertDialog.Builder(mActivity.getAndroidContext())
+                    .setMessage(R.string.confirm_action)
+                    .setPositiveButton(R.string.confirm, new OnClickListener() {
+                            public void onClick(DialogInterface dialog, int which) {
+                                onMenuClicked(action, listener);
+                            }
+                        })
+                    .setNegativeButton(R.string.cancel, null).create().show();
+        } else {
+            onMenuClicked(action, listener);
+        }
     }
 
     public void startAction(int action, int title, ProgressListener listener) {
@@ -257,7 +273,7 @@ public class MenuExecutor {
         long startTime = System.currentTimeMillis();
 
         switch (cmd) {
-            case R.id.action_confirm_delete:
+            case R.id.action_delete:
                 manager.delete(path);
                 break;
             case R.id.action_rotate_cw: