Clean up choose lock intent creation

Consolidated the many variants of ChooseLock*.createIntent, so that
it will take the same set of arguments.

Also modified SetupChooseLock*.createIntent to modifyIntentForSetup,
which will take the intent created by ChooseLock* and modify it for
use with setup.

Test: cd tests/robotests && mma
Change-Id: I5ff033f459c33ec9980872a536b3996d89f2bbbb

src/com/android/settings/password/SetupChooseLockPattern.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.password;
+
+import android.app.Fragment;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Resources;
+
+import com.android.settings.SetupRedactionInterstitial;
+import com.android.settings.SetupWizardUtils;
+
+/**
+ * Setup Wizard's version of ChooseLockPattern screen. It inherits the logic and basic structure
+ * from ChooseLockPattern class, and should remain similar to that behaviorally. This class should
+ * only overload base methods for minor theme and behavior differences specific to Setup Wizard.
+ * Other changes should be done to ChooseLockPattern class instead and let this class inherit
+ * those changes.
+ */
+public class SetupChooseLockPattern extends ChooseLockPattern {
+
+    public static Intent modifyIntentForSetup(Context context, Intent chooseLockPatternIntent) {
+        chooseLockPatternIntent.setClass(context, SetupChooseLockPattern.class);
+        return chooseLockPatternIntent;
+    }
+
+    @Override
+    protected boolean isValidFragment(String fragmentName) {
+        return SetupChooseLockPatternFragment.class.getName().equals(fragmentName);
+    }
+
+    @Override
+    /* package */ Class<? extends Fragment> getFragmentClass() {
+        return SetupChooseLockPatternFragment.class;
+    }
+
+    @Override
+    protected void onApplyThemeResource(Resources.Theme theme, int resid, boolean first) {
+        resid = SetupWizardUtils.getTheme(getIntent());
+        super.onApplyThemeResource(theme, resid, first);
+    }
+
+    public static class SetupChooseLockPatternFragment extends ChooseLockPatternFragment {
+
+        @Override
+        protected Intent getRedactionInterstitialIntent(Context context) {
+            // Setup wizard's redaction interstitial is deferred to optional step. Enable that
+            // optional step if the lock screen was set up.
+            SetupRedactionInterstitial.setEnabled(context, true);
+            return null;
+        }
+    }
+}