Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/preferences/MainPreferences.java

Index: chrome/android/java_staging/src/org/chromium/chrome/browser/preferences/MainPreferences.java
diff --git a/chrome/android/java_staging/src/org/chromium/chrome/browser/preferences/MainPreferences.java b/chrome/android/java_staging/src/org/chromium/chrome/browser/preferences/MainPreferences.java
new file mode 100644
index 0000000000000000000000000000000000000000..50e4d829d4b6ca1e3f06f69419f51b6f6c047a63
--- /dev/null
+++ b/chrome/android/java_staging/src/org/chromium/chrome/browser/preferences/MainPreferences.java
@@ -0,0 +1,253 @@
+// Copyright 2015 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.preferences;
+
+import android.content.Context;
+import android.os.Handler;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceClickListener;
+import android.preference.PreferenceFragment;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+
+import com.google.android.apps.chrome.R;
+
+import org.chromium.chrome.browser.PasswordUIView;
+import org.chromium.chrome.browser.autofill.PersonalDataManager;
+import org.chromium.chrome.browser.bookmarkimport.AndroidBrowserImporter;
+import org.chromium.chrome.browser.bookmarkimport.ImportBookmarksAlertDialog;
+import org.chromium.chrome.browser.net.spdyproxy.DataReductionProxySettings;
+import org.chromium.chrome.browser.partnercustomizations.HomepageManager;
+import org.chromium.chrome.browser.preferences.bandwidth.BandwidthReductionPreferences;
+import org.chromium.chrome.browser.signin.AccountAdder;
+import org.chromium.chrome.browser.signin.AddGoogleAccountDialogFragment;
+import org.chromium.chrome.browser.signin.AddGoogleAccountDialogFragment.AddGoogleAccountListener;
+import org.chromium.chrome.browser.signin.SigninManager;
+import org.chromium.chrome.browser.signin.SigninManager.SignInStateObserver;
+import org.chromium.chrome.browser.sync.ui.ChooseAccountFragment;
+import org.chromium.chrome.browser.util.FeatureUtilities;
+import org.chromium.sync.signin.AccountManagerHelper;
+import org.chromium.sync.signin.ChromeSigninController;
+
+/**
+ * The main settings screen, shown when the user first opens Settings.
+ */
+public class MainPreferences extends PreferenceFragment implements SignInStateObserver {
+
+    public static final String PREF_SIGN_IN = "sign_in";
+    public static final String PREF_DOCUMENT_MODE = "document_mode";
+    public static final String PREF_AUTOFILL_SETTINGS = "autofill_settings";
+    public static final String PREF_SAVED_PASSWORDS = "saved_passwords";
+    public static final String PREF_HOMEPAGE = "homepage";
+    public static final String PREF_REDUCE_DATA_USAGE = "reduce_data_usage";
+
+    public static final String ACCOUNT_PICKER_DIALOG_TAG = "account_picker_dialog_tag";
+
+    private SignInPreference mSignInPreference;
+    private ManagedPreferenceDelegate mManagedPreferenceDelegate;
+
+    public MainPreferences() {
+        setHasOptionsMenu(true);
+        mManagedPreferenceDelegate = createManagedPreferenceDelegate();
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        if (getActivity() == null) return;
+
+        AndroidBrowserImporter androidBrowserImporter = new AndroidBrowserImporter(getActivity());
+        if (androidBrowserImporter.areBookmarksAccessible()) {
+            menu.add(Menu.NONE, R.id.menu_id_import_bookmarks, Menu.NONE,
+                    R.string.import_bookmarks);
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == R.id.menu_id_import_bookmarks) {
+            ImportBookmarksAlertDialog importBookmarksFragment =
+                    new ImportBookmarksAlertDialog();
+            importBookmarksFragment.show(getFragmentManager(), null);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        SigninManager.get(getActivity()).addSignInStateObserver(this);
+        updatePreferences();
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        SigninManager.get(getActivity()).removeSignInStateObserver(this);
+        unregisterSignInPref();
+    }
+
+    private void updatePreferences() {
+        if (getPreferenceScreen() != null) getPreferenceScreen().removeAll();
+        addPreferencesFromResource(R.xml.main_preferences);
+
+        registerSignInPref();
+        mSignInPreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                if (!ChromeSigninController.get(getActivity()).isSignedIn()) {
+                    displayAccountPicker();
+                    return true;
+                }
+                return false;
+            }
+        });
+
+        Preference documentMode = findPreference(PREF_DOCUMENT_MODE);
+        if (FeatureUtilities.isDocumentModeEligible(getActivity())) {
+            setOnOffSummary(documentMode,
+                    !DocumentModeManager.getInstance(getActivity()).isOptedOutOfDocumentMode());
+        } else {
+            getPreferenceScreen().removePreference(documentMode);
+        }
+
+        ChromeBasePreference autofillPref =
+                (ChromeBasePreference) findPreference(PREF_AUTOFILL_SETTINGS);
+        setOnOffSummary(autofillPref, PersonalDataManager.isAutofillEnabled());
+        autofillPref.setManagedPreferenceDelegate(mManagedPreferenceDelegate);
+
+        ChromeBasePreference passwordsPref =
+                (ChromeBasePreference) findPreference(PREF_SAVED_PASSWORDS);
+        if (PasswordUIView.shouldUseSmartLockBranding()) {
+            passwordsPref.setTitle(getResources().getString(
+                    R.string.prefs_smart_lock_for_passwords));
+        }
+        setOnOffSummary(passwordsPref,
+                PrefServiceBridge.getInstance().isRememberPasswordsEnabled());
+        passwordsPref.setManagedPreferenceDelegate(mManagedPreferenceDelegate);
+
+        Preference homepagePref = findPreference(PREF_HOMEPAGE);
+        if (HomepageManager.shouldShowHomepageSetting()) {
+            setOnOffSummary(homepagePref,
+                    HomepageManager.getInstance(getActivity()).getPrefHomepageEnabled());
+        } else {
+            getPreferenceScreen().removePreference(homepagePref);
+        }
+
+        ChromeBasePreference bandwidthReduction =
+                (ChromeBasePreference) findPreference(PREF_REDUCE_DATA_USAGE);
+        if (DataReductionProxySettings.getInstance().isDataReductionProxyAllowed()) {
+            bandwidthReduction.setSummary(
+                    BandwidthReductionPreferences.generateSummary(getResources()));
+            bandwidthReduction.setManagedPreferenceDelegate(mManagedPreferenceDelegate);
+        } else {
+            getPreferenceScreen().removePreference(bandwidthReduction);
+        }
+    }
+
+    private void setOnOffSummary(Preference pref, boolean isOn) {
+        pref.setSummary(getResources().getString(isOn ? R.string.text_on : R.string.text_off));
+    }
+
+    private void registerSignInPref() {
+        unregisterSignInPref();
+        mSignInPreference = (SignInPreference) findPreference(PREF_SIGN_IN);
+        mSignInPreference.registerForUpdates();
+    }
+
+    private void unregisterSignInPref() {
+        if (mSignInPreference != null) {
+            mSignInPreference.unregisterForUpdates();
+            mSignInPreference = null;
+        }
+    }
+
+    /**
+     * Displays the account picker or the add account dialog and signs the user in.
+     */
+    private void displayAccountPicker() {
+        Context context = getActivity();
+        if (context == null) return;
+
+        if (!SigninManager.get(context).isSignInAllowed()) {
+            if (SigninManager.get(context).isSigninDisabledByPolicy()) {
+                ManagedPreferencesUtils.showManagedByAdministratorToast(context);
+            }
+            return;
+        }
+
+        if (AccountManagerHelper.get(context).hasGoogleAccounts()) {
+            ChooseAccountFragment chooserFragment = new ChooseAccountFragment();
+            chooserFragment.show(getFragmentManager(), ACCOUNT_PICKER_DIALOG_TAG);
+        } else {
+            AddGoogleAccountDialogFragment dialog = new AddGoogleAccountDialogFragment();
+            dialog.setListener(new AddGoogleAccountListener() {
+                @Override
+                public void onAddAccountClicked() {
+                    AccountAdder.getInstance().addAccount(MainPreferences.this,
+                            AccountAdder.ADD_ACCOUNT_RESULT);
+                }
+            });
+            dialog.show(getFragmentManager(), null);
+        }
+    }
+
+    // SignInStateObserver
+
+    @Override
+    public void onSignedIn() {
+        // After signing in or out of a managed account, preferences may change or become enabled
+        // or disabled.
+        new Handler().post(new Runnable() {
+            @Override
+            public void run() {
+                updatePreferences();
+            }
+        });
+    }
+
+    @Override
+    public void onSignedOut() {
+        updatePreferences();
+    }
+
+    private ManagedPreferenceDelegate createManagedPreferenceDelegate() {
+        return new ManagedPreferenceDelegate() {
+            @Override
+            public boolean isPreferenceControlledByPolicy(Preference preference) {
+                if (PREF_AUTOFILL_SETTINGS.equals(preference.getKey())) {
+                    return PersonalDataManager.isAutofillManaged();
+                }
+                if (PREF_SAVED_PASSWORDS.equals(preference.getKey())) {
+                    return PrefServiceBridge.getInstance().isRememberPasswordsManaged();
+                }
+                if (PREF_REDUCE_DATA_USAGE.equals(preference.getKey())) {
+                    return DataReductionProxySettings.getInstance().isDataReductionProxyManaged();
+                }
+                return false;
+            }
+
+            @Override
+            public boolean isPreferenceClickDisabledByPolicy(Preference preference) {
+                if (PREF_AUTOFILL_SETTINGS.equals(preference.getKey())) {
+                    return PersonalDataManager.isAutofillManaged()
+                            && !PersonalDataManager.isAutofillEnabled();
+                }
+                if (PREF_SAVED_PASSWORDS.equals(preference.getKey())) {
+                    PrefServiceBridge prefs = PrefServiceBridge.getInstance();
+                    return prefs.isRememberPasswordsManaged()
+                            && !prefs.isRememberPasswordsEnabled();
+                }
+                if (PREF_REDUCE_DATA_USAGE.equals(preference.getKey())) {
+                    DataReductionProxySettings settings = DataReductionProxySettings.getInstance();
+                    return settings.isDataReductionProxyManaged()
+                            && !settings.isDataReductionProxyEnabled();
+                }
+                return super.isPreferenceClickDisabledByPolicy(preference);
+            }
+        };
+    }
+}