org.chromium.chrome.browser.partnercustomizations.HomepageManager Java Examples

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mHomepageManager = HomepageManager.getInstance(getActivity());
    getActivity().setTitle(R.string.options_homepage_edit_title);
    View v = inflater.inflate(R.layout.homepage_editor, container, false);

    FloatLabelLayout homepageUrl = (FloatLabelLayout) v.findViewById(R.id.homepage_url);
    homepageUrl.focusWithoutAnimation();

    mHomepageUrlEdit = (EditText) v.findViewById(R.id.homepage_url_edit);
    mHomepageUrlEdit.setText((mHomepageManager.getPrefHomepageUseDefaultUri()
            ? PartnerBrowserCustomizations.getHomePageUrl()
            : mHomepageManager.getPrefHomepageCustomUri()));
    mHomepageUrlEdit.addTextChangedListener(this);

    initializeSaveCancelResetButtons(v);
    return v;
}
 

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    mHomepageManager = HomepageManager.getInstance(getActivity());
    getActivity().setTitle(R.string.options_homepage_title);
    addPreferencesFromResource(R.xml.homepage_preferences);

    mHomepageSwitch = (ChromeSwitchPreference) findPreference(PREF_HOMEPAGE_SWITCH);
    boolean isHomepageEnabled = mHomepageManager.getPrefHomepageEnabled();
    mHomepageSwitch.setChecked(isHomepageEnabled);
    mHomepageSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            mHomepageManager.setPrefHomepageEnabled((boolean) newValue);
            return true;
        }
    });

    mHomepageEdit = findPreference(PREF_HOMEPAGE_EDIT);
    updateCurrentHomepageUrl();
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mHomepageManager = HomepageManager.getInstance(getActivity());
    getActivity().setTitle(R.string.options_homepage_edit_title);
    View v = inflater.inflate(R.layout.homepage_editor, container, false);

    FloatLabelLayout homepageUrl = (FloatLabelLayout) v.findViewById(R.id.homepage_url);
    homepageUrl.focusWithoutAnimation();

    mHomepageUrlEdit = (EditText) v.findViewById(R.id.homepage_url_edit);
    mHomepageUrlEdit.setText((mHomepageManager.getPrefHomepageUseDefaultUri()
            ? PartnerBrowserCustomizations.getHomePageUrl()
            : mHomepageManager.getPrefHomepageCustomUri()));
    mHomepageUrlEdit.addTextChangedListener(this);

    initializeSaveCancelResetButtons(v);
    return v;
}
 

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    mHomepageManager = HomepageManager.getInstance(getActivity());
    getActivity().setTitle(R.string.options_homepage_title);
    addPreferencesFromResource(R.xml.homepage_preferences);

    mHomepageSwitch = (ChromeSwitchPreference) findPreference(PREF_HOMEPAGE_SWITCH);
    boolean isHomepageEnabled = mHomepageManager.getPrefHomepageEnabled();
    mHomepageSwitch.setChecked(isHomepageEnabled);
    mHomepageSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            mHomepageManager.setPrefHomepageEnabled((boolean) newValue);
            return true;
        }
    });

    mHomepageEdit = findPreference(PREF_HOMEPAGE_EDIT);
    updateCurrentHomepageUrl();
}
 

@Override
public void closeAllTabs(boolean allowDelegation, boolean uponExit) {
    mTabSaver.cancelLoadingTabs(isIncognito());

    if (uponExit) {
        commitAllTabClosures();

        for (int i = 0; i < getCount(); i++) getTabAt(i).setClosing(true);
        while (getCount() > 0) TabModelUtils.closeTabByIndex(this, 0);
        return;
    }

    if (allowDelegation && mModelDelegate.closeAllTabsRequest(isIncognito())) return;

    if (HomepageManager.isHomepageEnabled(ContextUtils.getApplicationContext())) {
        commitAllTabClosures();

        for (int i = 0; i < getCount(); i++) getTabAt(i).setClosing(true);
        while (getCount() > 0) TabModelUtils.closeTabByIndex(this, 0);
        return;
    }

    closeAllTabs(true, false, true);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mHomepageManager = HomepageManager.getInstance(getActivity());
    getActivity().setTitle(R.string.options_homepage_edit_title);
    View v = inflater.inflate(R.layout.homepage_editor, container, false);

    FloatLabelLayout homepageUrl = (FloatLabelLayout) v.findViewById(R.id.homepage_url);
    homepageUrl.focusWithoutAnimation();

    mHomepageUrlEdit = (EditText) v.findViewById(R.id.homepage_url_edit);
    mHomepageUrlEdit.setText((mHomepageManager.getPrefHomepageUseDefaultUri()
            ? PartnerBrowserCustomizations.getHomePageUrl()
            : mHomepageManager.getPrefHomepageCustomUri()));
    mHomepageUrlEdit.addTextChangedListener(this);

    initializeSaveCancelResetButtons(v);
    return v;
}
 

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    mHomepageManager = HomepageManager.getInstance(getActivity());
    getActivity().setTitle(R.string.options_homepage_title);
    addPreferencesFromResource(R.xml.homepage_preferences);

    mHomepageSwitch = (ChromeSwitchPreference) findPreference(PREF_HOMEPAGE_SWITCH);
    boolean isHomepageEnabled = mHomepageManager.getPrefHomepageEnabled();
    mHomepageSwitch.setChecked(isHomepageEnabled);
    mHomepageSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            mHomepageManager.setPrefHomepageEnabled((boolean) newValue);
            return true;
        }
    });

    mHomepageEdit = findPreference(PREF_HOMEPAGE_EDIT);
    updateCurrentHomepageUrl();
}
 

/**
 * Called when a UI element is done animating the close tab effect started by
 * {@link #uiRequestingCloseTab(long, int)}.  This actually pushes the close event to the model.
 * @param time      The current time of the app in ms.
 * @param id        The id of the tab to close.
 * @param canUndo   Whether or not this close can be undone.
 * @param incognito Whether or not this was for the incognito stack or not.
 */
public void uiDoneClosingTab(long time, int id, boolean canUndo, boolean incognito) {
    // If homepage is enabled and there is a maximum of 1 tab in both models
    // (this is the last tab), the tab closure cannot be undone.
    canUndo &= !(HomepageManager.isHomepageEnabled(getContext())
                       && (mTabModelSelector.getModel(true).getCount()
                                          + mTabModelSelector.getModel(false).getCount()
                                  < 2));

    // Propagate the tab closure to the model.
    TabModelUtils.closeTabById(mTabModelSelector.getModel(incognito), id, canUndo);
}
 

@Override
public void openHomepage() {
    RecordUserAction.record("Home");

    Tab currentTab = mToolbarModel.getTab();
    if (currentTab == null) return;
    Context context = mToolbar.getContext();
    String homePageUrl = HomepageManager.getHomepageUri(context);
    if (TextUtils.isEmpty(homePageUrl)) {
        homePageUrl = UrlConstants.NTP_URL;
    }
    currentTab.loadUrl(new LoadUrlParams(homePageUrl, PageTransition.HOME_PAGE));
}
 

/**
 * Sets up click and key listeners once we have native library available to handle clicks.
 */
@Override
public void onNativeLibraryReady() {
    super.onNativeLibraryReady();
    getLocationBar().onNativeLibraryReady();

    enableTabSwitchingResources();

    mHomeButton.setOnClickListener(this);

    mMenuButton.setOnKeyListener(new KeyboardNavigationListener() {
        @Override
        public View getNextFocusForward() {
            return getCurrentTabView();
        }

        @Override
        public View getNextFocusBackward() {
            return mToggleTabStackButton;
        }

        @Override
        protected boolean handleEnterKeyPress() {
            return getMenuButtonHelper().onEnterKeyPress(mMenuButton);
        }
    });
    onHomeButtonUpdate(HomepageManager.isHomepageEnabled(getContext()));

    updateVisualsForToolbarState();
}
 

/**
 * Called when a UI element is done animating the close tab effect started by
 * {@link #uiRequestingCloseTab(long, int)}.  This actually pushes the close event to the model.
 * @param time      The current time of the app in ms.
 * @param id        The id of the tab to close.
 * @param canUndo   Whether or not this close can be undone.
 * @param incognito Whether or not this was for the incognito stack or not.
 */
public void uiDoneClosingTab(long time, int id, boolean canUndo, boolean incognito) {
    // If homepage is enabled and there is a maximum of 1 tab in both models
    // (this is the last tab), the tab closure cannot be undone.
    canUndo &= !(HomepageManager.isHomepageEnabled(getContext())
                       && (mTabModelSelector.getModel(true).getCount()
                                          + mTabModelSelector.getModel(false).getCount()
                                  < 2));

    // Propagate the tab closure to the model.
    TabModelUtils.closeTabById(mTabModelSelector.getModel(incognito), id, canUndo);
}
 

/**
 * Create an initial tab for cold start without restored tabs.
 */
private void createInitialTab() {
    String url = HomepageManager.getHomepageUri(getApplicationContext());
    if (TextUtils.isEmpty(url) || NewTabPage.isNTPUrl(url)) {
        url = UrlConstants.NTP_URL;
    }

    getTabCreator(false).launchUrl(url, TabLaunchType.FROM_CHROME_UI);
}
 

@Override
public void openHomepage() {
    RecordUserAction.record("Home");

    Tab currentTab = mToolbarModel.getTab();
    if (currentTab == null) return;
    Context context = mToolbar.getContext();
    String homePageUrl = HomepageManager.getHomepageUri(context);
    if (TextUtils.isEmpty(homePageUrl)) {
        homePageUrl = UrlConstants.NTP_URL;
    }
    currentTab.loadUrl(new LoadUrlParams(homePageUrl, PageTransition.HOME_PAGE));
}
 

/**
 * Sets up click and key listeners once we have native library available to handle clicks.
 */
@Override
public void onNativeLibraryReady() {
    super.onNativeLibraryReady();
    getLocationBar().onNativeLibraryReady();

    enableTabSwitchingResources();

    mHomeButton.setOnClickListener(this);

    mMenuButton.setOnKeyListener(new KeyboardNavigationListener() {
        @Override
        public View getNextFocusForward() {
            return getCurrentTabView();
        }

        @Override
        public View getNextFocusBackward() {
            return mToggleTabStackButton;
        }

        @Override
        protected boolean handleEnterKeyPress() {
            return getMenuButtonHelper().onEnterKeyPress(mMenuButton);
        }
    });
    onHomeButtonUpdate(HomepageManager.isHomepageEnabled(getContext()));

    updateVisualsForToolbarState();
}
 

@Override
public void closeAllTabs(boolean allowDelegation, boolean uponExit) {
    mTabSaver.cancelLoadingTabs(isIncognito());

    if (uponExit) {
        commitAllTabClosures();

        for (int i = 0; i < getCount(); i++) getTabAt(i).setClosing(true);
        while (getCount() > 0) TabModelUtils.closeTabByIndex(this, 0);
        return;
    }

    if (allowDelegation && mModelDelegate.closeAllTabsRequest(isIncognito())) return;

    if (HomepageManager.isHomepageEnabled(ContextUtils.getApplicationContext())) {
        commitAllTabClosures();

        for (int i = 0; i < getCount(); i++) getTabAt(i).setClosing(true);
        while (getCount() > 0) TabModelUtils.closeTabByIndex(this, 0);
        return;
    }

    if (getCount() == 1) {
        closeTab(getTabAt(0), true, false, true);
        return;
    }

    closeAllTabs(true, false, true);
}
 

/**
 * Called when a UI element is done animating the close tab effect started by
 * {@link #uiRequestingCloseTab(long, int)}.  This actually pushes the close event to the model.
 * @param time      The current time of the app in ms.
 * @param id        The id of the tab to close.
 * @param canUndo   Whether or not this close can be undone.
 * @param incognito Whether or not this was for the incognito stack or not.
 */
public void uiDoneClosingTab(long time, int id, boolean canUndo, boolean incognito) {
    // If homepage is enabled and there is a maximum of 1 tab in both models
    // (this is the last tab), the tab closure cannot be undone.
    canUndo &= !(HomepageManager.isHomepageEnabled(getContext())
                       && (mTabModelSelector.getModel(true).getCount()
                                          + mTabModelSelector.getModel(false).getCount()
                                  < 2));

    // Propagate the tab closure to the model.
    TabModelUtils.closeTabById(mTabModelSelector.getModel(incognito), id, canUndo);
}
 

@Override
public void openHomepage() {
    Tab currentTab = mToolbarModel.getTab();
    if (currentTab == null) return;
    Context context = mToolbar.getContext();
    String homePageUrl = HomepageManager.getHomepageUri(context);
    if (TextUtils.isEmpty(homePageUrl)) {
        homePageUrl = UrlConstants.NTP_URL;
    }
    currentTab.loadUrl(new LoadUrlParams(homePageUrl, PageTransition.HOME_PAGE));
}
 

private void updatePreferences() {
    if (getPreferenceScreen() != null) getPreferenceScreen().removeAll();
    addPreferencesFromResource(R.xml.main_preferences);

    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 dataReduction =
            (ChromeBasePreference) findPreference(PREF_DATA_REDUCTION);
    if (DataReductionProxySettings.getInstance().isDataReductionProxyAllowed()) {
        dataReduction.setSummary(
                DataReductionPreferences.generateSummary(getResources()));
        dataReduction.setManagedPreferenceDelegate(mManagedPreferenceDelegate);
    } else {
        getPreferenceScreen().removePreference(dataReduction);
    }
}
 

@Override
public void closeAllTabs(boolean allowDelegation, boolean uponExit) {
    mTabSaver.cancelLoadingTabs(isIncognito());

    if (uponExit) {
        commitAllTabClosures();

        for (int i = 0; i < getCount(); i++) getTabAt(i).setClosing(true);
        while (getCount() > 0) TabModelUtils.closeTabByIndex(this, 0);
        return;
    }

    if (allowDelegation && mModelDelegate.closeAllTabsRequest(isIncognito())) return;

    if (HomepageManager.isHomepageEnabled(ContextUtils.getApplicationContext())) {
        commitAllTabClosures();

        for (int i = 0; i < getCount(); i++) getTabAt(i).setClosing(true);
        while (getCount() > 0) TabModelUtils.closeTabByIndex(this, 0);
        return;
    }

    if (getCount() == 1) {
        closeTab(getTabAt(0), true, false, true);
        return;
    }

    closeAllTabs(true, false, true);
}
 

private void updatePreferences() {
    if (getPreferenceScreen() != null) getPreferenceScreen().removeAll();
    addPreferencesFromResource(R.xml.main_preferences);

    addBlimpPreferences();

    if (TemplateUrlService.getInstance().isLoaded()) {
        updateSummary();
    } else {
        TemplateUrlService.getInstance().registerLoadListener(this);
        TemplateUrlService.getInstance().load();
        ChromeBasePreference searchEnginePref =
                (ChromeBasePreference) findPreference(PREF_SEARCH_ENGINE);
        searchEnginePref.setEnabled(false);
    }

    ChromeBasePreference autofillPref =
            (ChromeBasePreference) findPreference(PREF_AUTOFILL_SETTINGS);
    setOnOffSummary(autofillPref, PersonalDataManager.isAutofillEnabled());
    autofillPref.setManagedPreferenceDelegate(mManagedPreferenceDelegate);

    ChromeBasePreference passwordsPref =
            (ChromeBasePreference) findPreference(PREF_SAVED_PASSWORDS);

    ProfileSyncService syncService = ProfileSyncService.get();

    if (AndroidSyncSettings.isSyncEnabled(getActivity().getApplicationContext())
              && syncService.isBackendInitialized()
              && !syncService.isUsingSecondaryPassphrase()
              && ChromeFeatureList.isEnabled(VIEW_PASSWORDS)) {
        passwordsPref.setKey(PREF_MANAGE_ACCOUNT_LINK);
        passwordsPref.setTitle(R.string.redirect_to_passwords_text);
        passwordsPref.setSummary(R.string.redirect_to_passwords_link);
        passwordsPref.setOnPreferenceClickListener(this);
        passwordsPref.setManagedPreferenceDelegate(null);
    } else {
        if (PasswordUIView.shouldUseSmartLockBranding()) {
            passwordsPref.setTitle(getResources().getString(
                     R.string.prefs_smart_lock_for_passwords));
        } else {
            passwordsPref.setTitle(getResources().getString(
                      R.string.prefs_saved_passwords));
        }
        passwordsPref.setFragment(SavePasswordsPreferences.class.getCanonicalName());
        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 dataReduction =
            (ChromeBasePreference) findPreference(PREF_DATA_REDUCTION);
    if (DataReductionProxySettings.getInstance().isDataReductionProxyAllowed()) {
        dataReduction.setSummary(
                DataReductionPreferences.generateSummary(getResources()));
        dataReduction.setManagedPreferenceDelegate(mManagedPreferenceDelegate);
    } else {
        getPreferenceScreen().removePreference(dataReduction);
    }

    if (!SigninManager.get(getActivity()).isSigninSupported()) {
        getPreferenceScreen().removePreference(findPreference(PREF_SIGN_IN));
    }
}
 

/**
 * Handle application level deferred startup tasks that can be lazily done after all
 * the necessary initialization has been completed. Any calls requiring network access should
 * probably go here.
 *
 * Keep these tasks short and break up long tasks into multiple smaller tasks, as they run on
 * the UI thread and are blocking. Remember to follow RAIL guidelines, as much as possible, and
 * that most devices are quite slow, so leave enough buffer.
 */
@UiThread
public void initDeferredStartupForApp() {
    if (mDeferredStartupInitializedForApp) return;
    mDeferredStartupInitializedForApp = true;
    ThreadUtils.assertOnUiThread();

    RecordHistogram.recordLongTimesHistogram(
            "UMA.Debug.EnableCrashUpload.DeferredStartUptime2",
            SystemClock.uptimeMillis() - UmaUtils.getForegroundStartTime(),
            TimeUnit.MILLISECONDS);

    mDeferredTasks.add(new Runnable() {
        @Override
        public void run() {
            // Punt all tasks that may block on disk off onto a background thread.
            initAsyncDiskTask();

            AfterStartupTaskUtils.setStartupComplete();

            PartnerBrowserCustomizations.setOnInitializeAsyncFinished(new Runnable() {
                @Override
                public void run() {
                    String homepageUrl = HomepageManager.getHomepageUri(mAppContext);
                    LaunchMetrics.recordHomePageLaunchMetrics(
                            HomepageManager.isHomepageEnabled(mAppContext),
                            NewTabPage.isNTPUrl(homepageUrl), homepageUrl);
                }
            });

            PartnerBookmarksShim.kickOffReading(mAppContext);

            PowerMonitor.create(mAppContext);

            ShareHelper.clearSharedImages();

            OfflinePageUtils.clearSharedOfflineFiles(mAppContext);
        }
    });

    mDeferredTasks.add(new Runnable() {
        @Override
        public void run() {
            // Clear any media notifications that existed when Chrome was last killed.
            MediaCaptureNotificationService.clearMediaNotifications(mAppContext);

            startModerateBindingManagementIfNeeded();

            recordKeyboardLocaleUma();
        }
    });

    mDeferredTasks.add(new Runnable() {
        @Override
        public void run() {
            // Start or stop Physical Web
            PhysicalWeb.onChromeStart();
        }
    });

    final ChromeApplication application = (ChromeApplication) mAppContext;

    mDeferredTasks.add(new Runnable() {
        @Override
        public void run() {
            // Starts syncing with GSA.
            application.createGsaHelper().startSync();
        }
    });

    ProcessInitializationHandler.getInstance().initializeDeferredStartupTasks();
}
 

@Override
public void initializeCompositor() {
    try {
        TraceEvent.begin("ChromeTabbedActivity.initializeCompositor");
        super.initializeCompositor();

        mTabModelSelectorImpl.onNativeLibraryReady(getTabContentManager());

        mTabModelObserver = new TabModelSelectorTabModelObserver(mTabModelSelectorImpl) {
            @Override
            public void didCloseTab(int tabId, boolean incognito) {
                closeIfNoTabsAndHomepageEnabled(false);
            }

            @Override
            public void tabPendingClosure(Tab tab) {
                closeIfNoTabsAndHomepageEnabled(true);
            }

            @Override
            public void tabRemoved(Tab tab) {
                closeIfNoTabsAndHomepageEnabled(false);
            }

            private void closeIfNoTabsAndHomepageEnabled(boolean isPendingClosure) {
                if (getTabModelSelector().getTotalTabCount() == 0) {
                    // If the last tab is closed, and homepage is enabled, then exit Chrome.
                    if (HomepageManager.isHomepageEnabled(getApplicationContext())) {
                        finish();
                    } else if (isPendingClosure) {
                        NewTabPageUma.recordNTPImpression(
                                NewTabPageUma.NTP_IMPESSION_POTENTIAL_NOTAB);
                    }
                }
            }

            @Override
            public void didAddTab(Tab tab, TabLaunchType type) {
                if (type == TabLaunchType.FROM_LONGPRESS_BACKGROUND
                        && !DeviceClassManager.enableAnimations()) {
                    Toast.makeText(ChromeTabbedActivity.this,
                            R.string.open_in_new_tab_toast,
                            Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void allTabsPendingClosure(List<Tab> tabs) {
                NewTabPageUma.recordNTPImpression(
                        NewTabPageUma.NTP_IMPESSION_POTENTIAL_NOTAB);
            }
        };

        Bundle state = getSavedInstanceState();
        if (state != null && state.containsKey(FRE_RUNNING)) {
            mIsOnFirstRun = state.getBoolean(FRE_RUNNING);
        }
    } finally {
        TraceEvent.end("ChromeTabbedActivity.initializeCompositor");
    }
}
 

/**
 * Create an initial tab for cold start without restored tabs.
 */
private void createInitialTab() {
    String url = HomepageManager.getHomepageUri(getApplicationContext());
    if (TextUtils.isEmpty(url)) url = UrlConstants.NTP_URL;
    getTabCreator(false).launchUrl(url, TabLaunchType.FROM_CHROME_UI);
}
 

@Override
public void initializeCompositor() {
    try {
        TraceEvent.begin("ChromeTabbedActivity.initializeCompositor");
        super.initializeCompositor();

        mTabModelSelectorImpl.onNativeLibraryReady(getTabContentManager());
        mVrShellDelegate.onNativeLibraryReady();

        mTabModelObserver = new TabModelSelectorTabModelObserver(mTabModelSelectorImpl) {
            @Override
            public void didCloseTab(int tabId, boolean incognito) {
                closeIfNoTabsAndHomepageEnabled(false);
            }

            @Override
            public void tabPendingClosure(Tab tab) {
                closeIfNoTabsAndHomepageEnabled(true);
            }

            @Override
            public void tabRemoved(Tab tab) {
                closeIfNoTabsAndHomepageEnabled(false);
            }

            private void closeIfNoTabsAndHomepageEnabled(boolean isPendingClosure) {
                if (getTabModelSelector().getTotalTabCount() == 0) {
                    // If the last tab is closed, and homepage is enabled, then exit Chrome.
                    if (HomepageManager.isHomepageEnabled(getApplicationContext())) {
                        finish();
                    } else if (isPendingClosure) {
                        NewTabPageUma.recordNTPImpression(
                                NewTabPageUma.NTP_IMPESSION_POTENTIAL_NOTAB);
                    }
                }
            }

            @Override
            public void didAddTab(Tab tab, TabLaunchType type) {
                if (type == TabLaunchType.FROM_LONGPRESS_BACKGROUND
                        && !DeviceClassManager.enableAnimations(getApplicationContext())) {
                    Toast.makeText(ChromeTabbedActivity.this,
                            R.string.open_in_new_tab_toast,
                            Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void allTabsPendingClosure(List<Integer> tabIds) {
                NewTabPageUma.recordNTPImpression(
                        NewTabPageUma.NTP_IMPESSION_POTENTIAL_NOTAB);
            }
        };

        Bundle state = getSavedInstanceState();
        if (state != null && state.containsKey(FRE_RUNNING)) {
            mIsOnFirstRun = state.getBoolean(FRE_RUNNING);
        }
    } finally {
        TraceEvent.end("ChromeTabbedActivity.initializeCompositor");
    }
}
 

private void updatePreferences() {
    if (getPreferenceScreen() != null) getPreferenceScreen().removeAll();

    PreferenceUtils.addPreferencesFromResource(this, R.xml.main_preferences);

    if (TemplateUrlService.getInstance().isLoaded()) {
        updateSummary();
    } else {
        TemplateUrlService.getInstance().registerLoadListener(this);
        TemplateUrlService.getInstance().load();
        ChromeBasePreference searchEnginePref =
                (ChromeBasePreference) findPreference(PREF_SEARCH_ENGINE);
        searchEnginePref.setEnabled(false);
    }

    ChromeBasePreference autofillPref =
            (ChromeBasePreference) findPreference(PREF_AUTOFILL_SETTINGS);
    autofillPref.setManagedPreferenceDelegate(mManagedPreferenceDelegate);

    ChromeBasePreference passwordsPref =
            (ChromeBasePreference) findPreference(PREF_SAVED_PASSWORDS);

    ProfileSyncService syncService = ProfileSyncService.get();

    if (AndroidSyncSettings.isSyncEnabled(getActivity().getApplicationContext())
            && syncService.isEngineInitialized() && !syncService.isUsingSecondaryPassphrase()
            && ChromeFeatureList.isEnabled(VIEW_PASSWORDS)) {
        passwordsPref.setKey(PREF_MANAGE_ACCOUNT_LINK);
        passwordsPref.setTitle(R.string.redirect_to_passwords_text);
        passwordsPref.setSummary(R.string.redirect_to_passwords_link);
        passwordsPref.setOnPreferenceClickListener(this);
        passwordsPref.setManagedPreferenceDelegate(null);
    } else {
        passwordsPref.setTitle(getResources().getString(R.string.prefs_saved_passwords));
        passwordsPref.setFragment(SavePasswordsPreferences.class.getCanonicalName());
        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 dataReduction =
            (ChromeBasePreference) findPreference(PREF_DATA_REDUCTION);
    dataReduction.setSummary(DataReductionPreferences.generateSummary(getResources()));
    dataReduction.setManagedPreferenceDelegate(mManagedPreferenceDelegate);

    if (!SigninManager.get(getActivity()).isSigninSupported()) {
        getPreferenceScreen().removePreference(findPreference(PREF_SIGN_IN));
    }
}
 

/**
 * Sets up click and key listeners once we have native library available to handle clicks.
 */
@Override
public void onNativeLibraryReady() {
    super.onNativeLibraryReady();
    getLocationBar().onNativeLibraryReady();

    if (FeatureUtilities.isTabSwitchingEnabledInDocumentMode(getContext())) {
        // We might have hidden some buttons at onFinishInflate() because it was called
        // before native library is ready and chrome switch can be correctly read.
        // Now recover those buttons. Since we want to show toolbar even before native
        // library is ready, and as tab switching is experimental, this is unavoidable.
        unhideTabSwitchingResources();
        inflateTabSwitchingResources();
        enableTabSwitchingResources();
    } else if (FeatureUtilities.isDocumentMode(getContext())) {
        removeTabSwitchingResources();
    } else {  // non-document mode
        enableTabSwitchingResources();
    }

    mHomeButton.setOnClickListener(this);

    mMenuButton.setOnKeyListener(new KeyboardNavigationListener() {
        @Override
        public View getNextFocusForward() {
            return getCurrentTabView();
        }

        @Override
        public View getNextFocusBackward() {
            return mToggleTabStackButton;
        }

        @Override
        protected boolean handleEnterKeyPress() {
            return getMenuButtonHelper().onEnterKeyPress(mMenuButton);
        }
    });
    onHomeButtonUpdate(HomepageManager.isHomepageEnabled(getContext()));

    updateVisualsForToolbarState(mIsInTabSwitcherMode);
}
 

/**
 * Create an initial tab for cold start without restored tabs.
 */
private void createInitialTab() {
    String url = HomepageManager.getHomepageUri(getApplicationContext());
    if (TextUtils.isEmpty(url)) url = UrlConstants.NTP_URL;
    getTabCreator(false).launchUrl(url, TabLaunchType.FROM_CHROME_UI);
}