Give the user the choice of whether to enable Push as they create a new IMAP account.

TODO: explanatory prose underneath

res/layout/account_setup_options.xml

@@ -2,7 +2,7 @@
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
-	android:layout_height="fill_parent"
+    android:layout_height="fill_parent"
     android:layout_width="fill_parent">
 
 <ScrollView
@@ -21,11 +21,19 @@
             android:layout_width="fill_parent"
             android:textAppearance="?android:attr/textAppearanceSmall"
             android:textColor="?android:attr/textColorPrimary"
-           />
+            />
         <Spinner
             android:id="@+id/account_check_frequency"
             android:layout_height="wrap_content"
             android:layout_width="fill_parent" />
+        <CheckBox
+            android:id="@+id/account_enable_push"
+            android:layout_height="wrap_content"
+            android:layout_width="fill_parent"
+            android:textColor="?android:attr/textColorPrimary"
+            android:text="@string/account_setup_options_enable_push_label"
+            android:summary="@string/account_setup_options_enable_push_summary"
+           />
         <TextView
             android:text="@string/account_setup_options_mail_display_count_label"
             android:layout_height="wrap_content"
@@ -60,20 +68,20 @@
             android:layout_height="fill_parent"
             android:layout_weight="1" />
     </LinearLayout>
-	</ScrollView>
+    </ScrollView>
     <RelativeLayout 
         android:layout_marginTop="-54dip" 
         android:gravity="bottom|right"
         android:layout_height="wrap_content" 
         android:layout_width="fill_parent">
-		<Button
-			android:id="@+id/next"
-			android:text="@string/next_action"
+        <Button
+            android:id="@+id/next"
+            android:text="@string/next_action"
             android:layout_width="wrap_content"
             android:minWidth="@dimen/button_minWidth"
             android:layout_height="wrap_content"
             android:drawableRight="@drawable/button_indicator_next"
             android:layout_alignParentRight="true"
             android:layout_centerVertical="false" />
-	</RelativeLayout>
+    </RelativeLayout>
 </LinearLayout>

res/values/strings.xml

@@ -344,7 +344,11 @@ Welcome to K-9 Mail setup.  K-9 is an open source mail client for Android based
     <string name="account_setup_options_mail_check_frequency_6hour">Every 6 hours</string>
     <string name="account_setup_options_mail_check_frequency_12hour">Every 12 hours</string>
     <string name="account_setup_options_mail_check_frequency_24hour">Every 24 hours</string>
-    
+
+
+    <string name="account_setup_options_enable_push_label">Enable server push for this account</string>
+    <string name="account_setup_options_enable_push_summary">If your server supports it, new messages will appear instantly. This option can dramatically improve or hurt performance.</string>
+
     <string name="account_setup_options_default_label">Send mail from this account by default</string>
     <string name="account_setup_options_notify_label">Notify me when mail arrives</string>
     <string name="account_setup_options_notify_sync_label">Notify me while mail is being checked</string>

src/com/android/email/activity/setup/AccountSetupOptions.java

@@ -5,6 +5,7 @@ import com.android.email.K9Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
@@ -14,6 +15,7 @@ import android.widget.Spinner;
 import com.android.email.Account;
 import com.android.email.Email;
 import com.android.email.Preferences;
+import com.android.email.mail.Store;
 import com.android.email.R;
 
 public class AccountSetupOptions extends K9Activity implements OnClickListener {
@@ -29,6 +31,7 @@ public class AccountSetupOptions extends K9Activity implements OnClickListener {
 
     private CheckBox mNotifyView;
     private CheckBox mNotifySyncView;
+    private CheckBox mPushEnable;
 
     private Account mAccount;
 
@@ -49,6 +52,7 @@ public class AccountSetupOptions extends K9Activity implements OnClickListener {
         mDefaultView = (CheckBox)findViewById(R.id.account_default);
         mNotifyView = (CheckBox)findViewById(R.id.account_notify);
         mNotifySyncView = (CheckBox)findViewById(R.id.account_notify_sync);
+        mPushEnable = (CheckBox)findViewById(R.id.account_enable_push);
 
         findViewById(R.id.next).setOnClickListener(this);
 
@@ -114,6 +118,27 @@ public class AccountSetupOptions extends K9Activity implements OnClickListener {
                 .getAutomaticCheckIntervalMinutes());
         SpinnerOption.setSpinnerOptionValue(mDisplayCountView, mAccount
                 .getDisplayCount());
+
+
+        boolean isPushCapable = false;
+        try
+        {
+			Store store = Store.getInstance(mAccount.getStoreUri(), getApplication());
+            isPushCapable = store.isPushCapable();
+        }
+        catch (Exception e)
+        {
+            Log.e(Email.LOG_TAG, "Could not get remote store", e);
+        }
+
+
+		if(!isPushCapable) {
+			mPushEnable.setVisibility(View.GONE);
+		} else {
+            mPushEnable.setChecked(true);
+		}
+
+
     }
 
     private void onDone() {
@@ -124,6 +149,13 @@ public class AccountSetupOptions extends K9Activity implements OnClickListener {
                 .getSelectedItem()).value);
         mAccount.setDisplayCount((Integer)((SpinnerOption)mDisplayCountView
                 .getSelectedItem()).value);
+
+		if (mPushEnable.isChecked()) {
+			mAccount.setFolderPushMode(Account.FolderMode.FIRST_CLASS);
+		} else {
+			mAccount.setFolderPushMode(Account.FolderMode.NONE);
+        }
+
         mAccount.save(Preferences.getPreferences(this));
         if (mDefaultView.isChecked()) {
             Preferences.getPreferences(this).setDefaultAccount(mAccount);