Show search engine promo dialog for special locale

chrome/android/java/src/org/chromium/chrome/browser/locale/SearchEnginePromoDialog.java

Index: chrome/android/java/src/org/chromium/chrome/browser/locale/SearchEnginePromoDialog.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/locale/SearchEnginePromoDialog.java b/chrome/android/java/src/org/chromium/chrome/browser/locale/SearchEnginePromoDialog.java
new file mode 100644
index 0000000000000000000000000000000000000000..770a9e426215f97f41749de67fd7be728ddcee99
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/locale/SearchEnginePromoDialog.java
@@ -0,0 +1,88 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.locale;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.SpannableString;
+import android.text.method.LinkMovementMethod;
+import android.text.style.ClickableSpan;
+import android.view.View;
+import android.widget.TextView;
+
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.preferences.PreferencesLauncher;
+import org.chromium.chrome.browser.preferences.SearchEnginePreference;
+import org.chromium.ui.text.NoUnderlineClickableSpan;
+import org.chromium.ui.text.SpanApplier;
+import org.chromium.ui.text.SpanApplier.SpanInfo;
+
+/**
+ * A promotion dialog showing that the default search provider will be set to Sogou.
+ */
+public class SearchEnginePromoDialog extends Dialog implements View.OnClickListener {
+
+    private final LocaleManager mLocaleManager;
+    private final ClickableSpan mSpan = new NoUnderlineClickableSpan() {
+        @Override
+        public void onClick(View widget) {
+            Intent intent = PreferencesLauncher.createIntentForSettingsPage(getContext(),
+                    SearchEnginePreference.class.getName());
+            getContext().startActivity(intent);
+        }
+    };
+
+    /**
+     * Creates an instance of the dialog.
+     */
+    public SearchEnginePromoDialog(Context context, LocaleManager localeManager) {
+        super(context, R.style.SimpleDialog);
+        mLocaleManager = localeManager;
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        // Do not allow this dialog to be reconstructed because it requires native side loaded.
+        if (savedInstanceState != null) {
+            dismiss();
+            return;
+        }
+        setContentView(R.layout.search_engine_promo);
+
+        View keepGoogleButton = findViewById(R.id.keep_google_button);
+        View okButton = findViewById(R.id.ok_button);
+        keepGoogleButton.setOnClickListener(this);
+        okButton.setOnClickListener(this);
+
+        TextView textView = (TextView) findViewById(R.id.description);
+        SpannableString description = SpanApplier.applySpans(
+                getContext().getString(R.string.sogou_explanation),
+                new SpanInfo("<link>", "</link>", mSpan));
+        textView.setText(description);
+        textView.setMovementMethod(LinkMovementMethod.getInstance());
+    }
+
+    @Override
+    public void onClick(View view) {
+        if (view.getId() == R.id.keep_google_button) {
+            keepGoogle();
+        } else if (view.getId() == R.id.ok_button) {
+            useSogou();
+        }
+        dismiss();
+    }
+
+    private void keepGoogle() {
+        mLocaleManager.addSpecialSearchEngines();
+        // TODO(ianwen): Disable search engine auto switching here.
+    }
+
+    private void useSogou() {
+        mLocaleManager.addSpecialSearchEngines();
+        mLocaleManager.overrideDefaultSearchEngine();
+    }
+}