From 4ca1ca862202100f89b7ce24509ab7e310bf7191 Mon Sep 17 00:00:00 2001
From: Jorge Lugo <jlugo@google.com>
Date: Thu, 30 Jun 2011 20:13:12 -0700
Subject: [PATCH] Display message when no quick respones available

When editing quick responses, displays an appropriate
message letting users know that there are no quick responses.
Additionally, the MessageCompose activity will only show "insert quick
responses" when at least one exists.

Bug: 4948180
Change-Id: I1191bd54d6e64f990b6d6830f0837579d7a6918c
---
 ...settings_edit_quick_responses_fragment.xml | 20 +++++++--
 res/values/strings.xml                        |  3 ++
 .../email/activity/MessageCompose.java        | 43 +++++++++++++++++++
 ...untSettingsEditQuickResponsesFragment.java |  4 ++
 4 files changed, 66 insertions(+), 4 deletions(-)

diff --git a/res/layout/account_settings_edit_quick_responses_fragment.xml b/res/layout/account_settings_edit_quick_responses_fragment.xml
index 29f9467ca..62db3db2d 100644
--- a/res/layout/account_settings_edit_quick_responses_fragment.xml
+++ b/res/layout/account_settings_edit_quick_responses_fragment.xml
@@ -23,14 +23,24 @@
     android:paddingRight="@dimen/settings_fragment_padding_right"
     >
 
-    <!-- List of quick responses -->
+    <!-- List of quick responses and empty view for when there are none-->
     <ListView
         android:id="@+id/account_settings_quick_responses_list"
         android:layout_width="match_parent"
         android:layout_height="0dip"
         android:layout_weight="1"
         />
-
+    <TextView
+        android:id="@+id/empty_view"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:layout_weight="1"
+        android:layout_gravity="center"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:focusable="true"
+        android:visibility="gone"
+        android:text="@string/quick_responses_empty_view"
+        />
     <RelativeLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -42,12 +52,14 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
-            android:text="@string/create_action" />
+            android:text="@string/create_action"
+            />
         <Button
             android:id="@+id/done"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentRight="true"
-            android:text="@string/done_action" />
+            android:text="@string/done_action"
+            />
     </RelativeLayout>
 </LinearLayout>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 442caabde..b332a6a14 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -103,6 +103,9 @@
     <string name="create_action">Create new</string>
     <!--  Button name used to delete a quick response [CHAR_LIMIT=16] -->
     <string name="delete_quick_response_action">Delete</string>
+    <!-- Message informing user when a list that would contain quick responses
+            is empty [CHAR_LIMIT=80] -->
+    <string name="quick_responses_empty_view">No quick responses</string>
     <!-- Menu item/button name -->
     <string name="discard_action">Discard</string>
     <!-- Menu item/button name [CHAR_LIMIT=16] -->
diff --git a/src/com/android/email/activity/MessageCompose.java b/src/com/android/email/activity/MessageCompose.java
index 269405e00..7d7fa3389 100644
--- a/src/com/android/email/activity/MessageCompose.java
+++ b/src/com/android/email/activity/MessageCompose.java
@@ -71,12 +71,15 @@ import com.android.emailcommon.Logging;
 import com.android.emailcommon.internet.MimeUtility;
 import com.android.emailcommon.mail.Address;
 import com.android.emailcommon.provider.Account;
+import com.android.emailcommon.provider.EmailContent;
 import com.android.emailcommon.provider.EmailContent.Attachment;
 import com.android.emailcommon.provider.EmailContent.Body;
 import com.android.emailcommon.provider.EmailContent.BodyColumns;
 import com.android.emailcommon.provider.EmailContent.Message;
 import com.android.emailcommon.provider.EmailContent.MessageColumns;
+import com.android.emailcommon.provider.EmailContent.QuickResponseColumns;
 import com.android.emailcommon.provider.Mailbox;
+import com.android.emailcommon.provider.QuickResponse;
 import com.android.emailcommon.utility.AttachmentUtilities;
 import com.android.emailcommon.utility.EmailAsyncTask;
 import com.android.emailcommon.utility.Utility;
@@ -199,6 +202,7 @@ public class MessageCompose extends Activity implements OnClickListener, OnFocus
     private boolean mDraftNeedsSaving;
     private boolean mMessageLoaded;
     private boolean mInitiallyEmpty;
+    private Boolean mQuickResponsesAvailable = true;
     private final EmailAsyncTask.Tracker mTaskTracker = new EmailAsyncTask.Tracker();
 
     private AccountSpecifier mAddressAdapterTo;
@@ -352,6 +356,8 @@ public class MessageCompose extends Activity implements OnClickListener, OnFocus
             // Some configurations don't show the from field.
             mFromView.setText(account.mEmailAddress);
         }
+
+        new QuickResponseChecker(mTaskTracker).executeParallel((Void) null);
     }
 
     @Override
@@ -438,6 +444,35 @@ public class MessageCompose extends Activity implements OnClickListener, OnFocus
         setAction(intent.getAction());
     }
 
+    private void setQuickResponsesAvailable(boolean quickResponsesAvailable) {
+        if (mQuickResponsesAvailable != quickResponsesAvailable) {
+            mQuickResponsesAvailable = quickResponsesAvailable;
+            invalidateOptionsMenu();
+        }
+    }
+
+    /**
+     * Given an accountId and context, finds if the database has any QuickResponse
+     * entries and returns the result to the Callback.
+     */
+    private class QuickResponseChecker extends EmailAsyncTask<Void, Void, Boolean> {
+        public QuickResponseChecker(EmailAsyncTask.Tracker tracker) {
+            super(tracker);
+        }
+
+        @Override
+        protected Boolean doInBackground(Void... params) {
+            return EmailContent.count(MessageCompose.this, QuickResponse.CONTENT_URI,
+                    QuickResponseColumns.ACCOUNT_KEY + "=?",
+                    new String[] {Long.toString(mAccount.mId)}) > 0;
+        }
+
+        @Override
+        protected void onSuccess(Boolean quickResponsesAvailable) {
+            setQuickResponsesAvailable(quickResponsesAvailable);
+        }
+    }
+
     @Override
     public void onResume() {
         super.onResume();
@@ -448,6 +483,11 @@ public class MessageCompose extends Activity implements OnClickListener, OnFocus
             finish();
             return;
         }
+
+        // If activity paused and quick responses are removed/added, possibly update options menu
+        if (mAccount != null) {
+            new QuickResponseChecker(mTaskTracker).executeParallel((Void) null);
+        }
     }
 
     @Override
@@ -1859,6 +1899,9 @@ public class MessageCompose extends Activity implements OnClickListener, OnFocus
         menu.findItem(R.id.save).setEnabled(mDraftNeedsSaving);
         menu.findItem(R.id.add_cc_bcc).setVisible(
                 (mCcBccContainer == null) || (mCcBccContainer.getVisibility() != View.VISIBLE));
+        MenuItem insertQuickResponse = menu.findItem(R.id.show_quick_text_list_dialog);
+        insertQuickResponse.setVisible(mQuickResponsesAvailable);
+        insertQuickResponse.setEnabled(mQuickResponsesAvailable);
         return true;
     }
 
diff --git a/src/com/android/email/activity/setup/AccountSettingsEditQuickResponsesFragment.java b/src/com/android/email/activity/setup/AccountSettingsEditQuickResponsesFragment.java
index 92ca0fd13..bac794dc6 100644
--- a/src/com/android/email/activity/setup/AccountSettingsEditQuickResponsesFragment.java
+++ b/src/com/android/email/activity/setup/AccountSettingsEditQuickResponsesFragment.java
@@ -42,6 +42,7 @@ import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.ImageView;
 import android.widget.ListView;
+import android.widget.TextView;
 
 /**
  * Lists quick responses associated with the specified email account. Allows users to create,
@@ -247,6 +248,9 @@ public class AccountSettingsEditQuickResponsesFragment extends Fragment
 
         mQuickResponsesView = UiUtilities.getView(view,
                 R.id.account_settings_quick_responses_list);
+        TextView emptyView = (TextView)
+                UiUtilities.getView(((ViewGroup) mQuickResponsesView.getParent()), R.id.empty_view);
+        mQuickResponsesView.setEmptyView(emptyView);
 
         new QuickResponseFinder(mTaskTracker, mAccount.mId, mQuickResponsesView,
                 mContext, getFragmentManager(), null, true)