Issue 3280: Add launcher shortcuts for special accounts/folders ("Unified Inbox" and "All messages")

AndroidManifest.xml

@@ -208,6 +208,10 @@
             android:launchMode="singleTask"
             android:configChanges="locale"
             >
+            <intent-filter>
+                <!-- This action is only to allow an entry point for launcher shortcuts -->
+                <action android:name="android.intent.action.MAIN" />
+            </intent-filter>
         </activity>
         <activity
             android:name="com.fsck.k9.activity.MessageView"

src/com/fsck/k9/activity/LauncherShortcuts.java

@@ -1,5 +1,9 @@
 package com.fsck.k9.activity;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Parcelable;
@@ -13,10 +17,14 @@ import android.widget.ListView;
 import android.widget.TextView;
 
 import com.fsck.k9.Account;
+import com.fsck.k9.BaseAccount;
 import com.fsck.k9.FontSizes;
 import com.fsck.k9.K9;
 import com.fsck.k9.Preferences;
 import com.fsck.k9.R;
+import com.fsck.k9.SearchAccount;
+import com.fsck.k9.SearchSpecification;
+import com.fsck.k9.helper.Utility;
 
 public class LauncherShortcuts extends K9ListActivity implements OnItemClickListener {
     private AccountsAdapter mAdapter;
@@ -41,14 +49,41 @@ public class LauncherShortcuts extends K9ListActivity implements OnItemClickList
     }
 
     private void refresh() {
-        Account[] accounts = Preferences.getPreferences(this).getAccounts();
+        List<BaseAccount> accounts = new ArrayList<BaseAccount>();
+
+        if (!K9.isHideSpecialAccounts()) {
+            BaseAccount integratedInboxAccount = new SearchAccount(this, true, null,  null);
+            integratedInboxAccount.setDescription(
+                    getString(R.string.integrated_inbox_title));
+            integratedInboxAccount.setEmail(
+                    getString(R.string.integrated_inbox_detail));
+
+            BaseAccount unreadAccount = new SearchAccount(this, false, null, null);
+            unreadAccount.setDescription(
+                    getString(R.string.search_all_messages_title));
+            unreadAccount.setEmail(
+                    getString(R.string.search_all_messages_detail));
+
+            accounts.add(integratedInboxAccount);
+            accounts.add(unreadAccount);
+        }
+
+        accounts.addAll(Arrays.asList(Preferences.getPreferences(this).getAccounts()));
 
         mAdapter = new AccountsAdapter(accounts);
         getListView().setAdapter(mAdapter);
     }
 
-    private void setupShortcut(Account account) {
+    private void setupShortcut(BaseAccount account) {
-        final Intent shortcutIntent = FolderList.actionHandleAccountIntent(this, account, null, true);
+        Intent shortcutIntent = null;
+
+        if (account instanceof SearchSpecification) {
+            shortcutIntent = MessageList.actionHandleAccountIntent(
+                    this, account.getDescription(), (SearchSpecification) account);
+        } else {
+            shortcutIntent = FolderList.actionHandleAccountIntent(this,
+                    (Account) account, null, true);
+        }
 
         Intent intent = new Intent();
         intent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
@@ -65,18 +100,18 @@ public class LauncherShortcuts extends K9ListActivity implements OnItemClickList
     }
 
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-        Account account = (Account) parent.getItemAtPosition(position);
+        BaseAccount account = (BaseAccount) parent.getItemAtPosition(position);
         setupShortcut(account);
     }
 
-    class AccountsAdapter extends ArrayAdapter<Account> {
+    class AccountsAdapter extends ArrayAdapter<BaseAccount> {
-        public AccountsAdapter(Account[] accounts) {
+        public AccountsAdapter(List<BaseAccount> accounts) {
             super(LauncherShortcuts.this, 0, accounts);
         }
 
         @Override
         public View getView(int position, View convertView, ViewGroup parent) {
-            final Account account = getItem(position);
+            final BaseAccount account = getItem(position);
 
             final View view;
             if (convertView != null) {
@@ -110,7 +145,10 @@ public class LauncherShortcuts extends K9ListActivity implements OnItemClickList
 
             holder.description.setText(description);
 
-            holder.chip.setBackgroundColor(account.getChipColor());
+            if (account instanceof Account) {
+                holder.chip.setBackgroundColor(((Account) account).getChipColor());
+            }
+
             holder.chip.getBackground().setAlpha(255);
 
             holder.description.setTextSize(TypedValue.COMPLEX_UNIT_SP, mFontSizes.getAccountName());

src/com/fsck/k9/activity/MessageList.java

@@ -52,10 +52,12 @@ import android.widget.Toast;
 
 import com.fsck.k9.Account;
 import com.fsck.k9.AccountStats;
+import com.fsck.k9.BaseAccount;
 import com.fsck.k9.FontSizes;
 import com.fsck.k9.K9;
 import com.fsck.k9.Preferences;
 import com.fsck.k9.R;
+import com.fsck.k9.SearchAccount;
 import com.fsck.k9.SearchSpecification;
 import com.fsck.k9.activity.setup.AccountSettings;
 import com.fsck.k9.activity.setup.FolderSettings;
@@ -614,7 +616,11 @@ public class MessageList
         context.startActivity(intent);
     }
 
-    public static void actionHandle(Context context, String title, SearchSpecification searchSpecification) {
+    /**
+     * Creates and returns an intent that opens Unified Inbox or All Messages screen.
+     */
+    public static Intent actionHandleAccountIntent(Context context, String title,
+            SearchSpecification searchSpecification) {
         Intent intent = new Intent(context, MessageList.class);
         intent.putExtra(EXTRA_QUERY, searchSpecification.getQuery());
         if (searchSpecification.getRequiredFlags() != null) {
@@ -630,6 +636,13 @@ public class MessageList
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
         intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+
+        return intent;
+    }
+
+    public static void actionHandle(Context context, String title,
+            SearchSpecification searchSpecification) {
+        Intent intent = actionHandleAccountIntent(context, title, searchSpecification);
         context.startActivity(intent);
     }