[Setup] Theme ChooseLockGeneric for setup wizard

This is step one of theming the set-up lock screen flow to match the
setup wizard theme. This shows the general approach of creating a
subclass of both the activity and fragment and overriding methods to
achieve the desired behavior for setup.

ag/594000 is a much more comprehensive change for what the final
change will look like.

Bug: 18482708
Change-Id: Idff34937f39f46a0c488df2cae4c46155b80cab7

src/com/android/settings/SetupWizardUtils.java

@@ -0,0 +1,106 @@
+/*
+ * 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;
+
+import com.android.setupwizard.navigationbar.SetupWizardNavBar;
+
+
+import android.app.Activity;
+import android.content.Intent;
+import android.graphics.Color;
+import android.view.Window;
+import android.widget.TextView;
+
+public class SetupWizardUtils {
+    private static final String TAG = "SetupWizardUtils";
+
+    // Extra containing the resource name of the theme to be used
+    public static final String EXTRA_THEME = "theme";
+    public static final String THEME_HOLO = "holo";
+    public static final String THEME_HOLO_LIGHT = "holo_light";
+    public static final String THEME_MATERIAL = "material";
+    public static final String THEME_MATERIAL_LIGHT = "material_light";
+
+    public static final String EXTRA_USE_IMMERSIVE_MODE = "useImmersiveMode";
+
+    // From WizardManager (must match constants maintained there)
+    public static final String ACTION_NEXT = "com.android.wizard.NEXT";
+    public static final String EXTRA_SCRIPT_URI = "scriptUri";
+    public static final String EXTRA_ACTION_ID = "actionId";
+    public static final String EXTRA_RESULT_CODE = "com.android.setupwizard.ResultCode";
+    public static final int NEXT_REQUEST = 10000;
+
+    public static boolean isUsingWizardManager(Activity activity) {
+        return activity.getIntent().hasExtra(EXTRA_SCRIPT_URI);
+    }
+
+    /**
+     * Send the results of this activity to WizardManager, which will then send out the next
+     * scripted activity. WizardManager does not actually return an activity result, but if we
+     * invoke WizardManager without requesting a result, the framework will choose not to issue a
+     * call to onActivityResult with RESULT_CANCELED when navigating backward.
+     */
+    public static void sendResultsToSetupWizard(Activity activity, int resultCode) {
+        final Intent intent = activity.getIntent();
+        final Intent nextIntent = new Intent(ACTION_NEXT);
+        nextIntent.putExtra(EXTRA_SCRIPT_URI, intent.getStringExtra(EXTRA_SCRIPT_URI));
+        nextIntent.putExtra(EXTRA_ACTION_ID, intent.getStringExtra(EXTRA_ACTION_ID));
+        nextIntent.putExtra(EXTRA_THEME, intent.getStringExtra(EXTRA_THEME));
+        nextIntent.putExtra(EXTRA_RESULT_CODE, resultCode);
+        activity.startActivityForResult(nextIntent, NEXT_REQUEST);
+    }
+
+    public static int getTheme(Intent intent, int defaultResId) {
+        final String themeName = intent.getStringExtra(EXTRA_THEME);
+        int resid = defaultResId;
+        if (THEME_HOLO_LIGHT.equalsIgnoreCase(themeName) ||
+                THEME_MATERIAL_LIGHT.equalsIgnoreCase(themeName)) {
+            resid = R.style.SetupWizardTheme_Light;
+        } else if (THEME_HOLO.equalsIgnoreCase(themeName) ||
+                THEME_MATERIAL.equalsIgnoreCase(themeName)) {
+            resid = R.style.SetupWizardTheme;
+        }
+        return resid;
+    }
+
+    /**
+     * Sets the immersive mode related flags based on the extra in the intent which started the
+     * activity.
+     */
+    public static void setImmersiveMode(Activity activity, SetupWizardNavBar navBar) {
+        final boolean useImmersiveMode =
+                activity.getIntent().getBooleanExtra(EXTRA_USE_IMMERSIVE_MODE, false);
+        navBar.setUseImmersiveMode(useImmersiveMode);
+        if (useImmersiveMode) {
+            final Window window = activity.getWindow();
+            window.setNavigationBarColor(Color.TRANSPARENT);
+            window.setStatusBarColor(Color.TRANSPARENT);
+        }
+    }
+
+    public static TextView getHeader(Activity activity) {
+        return (TextView) activity.findViewById(R.id.title);
+    }
+
+    public static void setHeaderText(Activity activity, int text) {
+        getHeader(activity).setText(text);
+    }
+
+    public static void setHeaderText(Activity activity, CharSequence text) {
+        getHeader(activity).setText(text);
+    }
+}