Home | History | Annotate | Download | only in login 
      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_NEW_USER_VIEW_H_
      6 #define CHROME_BROWSER_CHROMEOS_LOGIN_NEW_USER_VIEW_H_
      7 #pragma once
      8 
      9 #include <string>
     10 
     11 #include "base/task.h"
     12 #include "chrome/browser/chromeos/login/helper.h"
     13 #include "chrome/browser/chromeos/login/language_switch_menu.h"
     14 #include "chrome/browser/chromeos/login/user_input.h"
     15 #include "views/accelerator.h"
     16 #include "views/controls/button/button.h"
     17 #include "views/controls/link.h"
     18 #include "views/controls/textfield/textfield_controller.h"
     19 #include "views/view.h"
     20 
     21 namespace views {
     22 class Label;
     23 class MenuButton;
     24 class NativeButton;
     25 }  // namespace views
     26 
     27 namespace chromeos {
     28 
     29 // View that is used for new user login. It asks for username and password,
     30 // allows to specify language preferences or initiate new account creation.
     31 class NewUserView : public ThrobberHostView,
     32                     public UserInput,
     33                     public views::TextfieldController,
     34                     public views::LinkController,
     35                     public views::ButtonListener {
     36  public:
     37   // Delegate class to get notifications from the view.
     38   class Delegate {
     39   public:
     40     virtual ~Delegate() {}
     41 
     42     // User provided |username|, |password| and initiated login.
     43     virtual void OnLogin(const std::string& username,
     44                          const std::string& password) = 0;
     45 
     46     // Initiates incognito login.
     47     virtual void OnLoginAsGuest() = 0;
     48 
     49     // User initiated new account creation.
     50     virtual void OnCreateAccount() = 0;
     51 
     52     // User requested enterprise enrollment.
     53     virtual void OnStartEnterpriseEnrollment() = 0;
     54 
     55     // User started typing so clear all error messages.
     56     virtual void ClearErrors() = 0;
     57 
     58     // User tries to navigate away from NewUserView pod.
     59     virtual void NavigateAway() = 0;
     60   };
     61 
     62   // If |need_border| is true, RoundedRect border and background are required.
     63   NewUserView(Delegate* delegate,
     64               bool need_border,
     65               bool need_guest_link);
     66 
     67   virtual ~NewUserView();
     68 
     69   // Initialize view layout.
     70   void Init();
     71 
     72   // Update strings from the resources. Executed on language change.
     73   void UpdateLocalizedStringsAndFonts();
     74 
     75   // Returns bounds of password field in screen coordinates.
     76   gfx::Rect GetPasswordBounds() const;
     77 
     78   // Returns bounds of username field in screen coordinates.
     79   gfx::Rect GetUsernameBounds() const;
     80 
     81   // views::View:
     82   virtual gfx::Size GetPreferredSize();
     83   virtual void Layout();
     84   virtual void RequestFocus();
     85 
     86   // Setters for textfields.
     87   void SetUsername(const std::string& username);
     88   void SetPassword(const std::string& password);
     89 
     90   // Attempt to login with the current field values.
     91   void Login();
     92 
     93   // views::TextfieldController:
     94   // Not thread-safe, by virtue of using SetupSession().
     95   virtual bool HandleKeyEvent(views::Textfield* sender,
     96                               const views::KeyEvent& keystroke);
     97   virtual void ContentsChanged(views::Textfield* sender,
     98                                const string16& new_contents);
     99 
    100   // views::ButtonListener:
    101   virtual void ButtonPressed(views::Button* sender, const views::Event& event);
    102 
    103   // views::LinkController:
    104   virtual void LinkActivated(views::Link* source, int event_flags);
    105   virtual bool AcceleratorPressed(const views::Accelerator& accelerator);
    106 
    107   // ThrobberHostView:
    108   virtual gfx::Rect CalculateThrobberBounds(views::Throbber* throbber);
    109 
    110   // UserInput:
    111   virtual void EnableInputControls(bool enabled);
    112   virtual void ClearAndFocusControls();
    113   virtual void ClearAndFocusPassword();
    114   virtual gfx::Rect GetMainInputScreenBounds() const;
    115 
    116   // Navigates "away" to other user pods if allowed.
    117   // Returns true if event has been processed.
    118   bool NavigateAway();
    119 
    120  protected:
    121   // views::View:
    122   virtual void ViewHierarchyChanged(bool is_add,
    123                                     views::View *parent,
    124                                     views::View *child);
    125   virtual void OnLocaleChanged();
    126   void AddChildView(View* view);
    127 
    128  private:
    129   // Creates Link control and adds it as a child.
    130   void InitLink(views::Link** link);
    131 
    132   // Delete and recreate native controls that fail to update preferred size
    133   // after text/locale update.
    134   void RecreatePeculiarControls();
    135 
    136   // Enable or disable the |sign_in_button_| based on the contents of the
    137   // |username_field_| and |password_field_|. If there is text in both the
    138   // button is enabled, otherwise it's disabled.
    139   void UpdateSignInButtonState();
    140 
    141   // Create view with specified solid background and add it as  child.
    142   views::View* CreateSplitter(SkColor color);
    143 
    144   // Screen controls.
    145   // NOTE: sign_in_button_ and languages_menubutton_ are handled with
    146   // special care: they are recreated on any text/locale change
    147   // because they are not resized properly.
    148   views::Textfield* username_field_;
    149   views::Textfield* password_field_;
    150   views::Label* title_label_;
    151   views::Label* title_hint_label_;
    152   views::View* splitter_up1_;
    153   views::View* splitter_up2_;
    154   views::View* splitter_down1_;
    155   views::View* splitter_down2_;
    156   views::NativeButton* sign_in_button_;
    157   views::Link* guest_link_;
    158   views::Link* create_account_link_;
    159   views::MenuButton* languages_menubutton_;
    160 
    161   views::Accelerator accel_focus_pass_;
    162   views::Accelerator accel_focus_user_;
    163   views::Accelerator accel_enterprise_enrollment_;
    164   views::Accelerator accel_login_off_the_record_;
    165   views::Accelerator accel_toggle_accessibility_;
    166 
    167   // Notifications receiver.
    168   Delegate* delegate_;
    169 
    170   ScopedRunnableMethodFactory<NewUserView> focus_grabber_factory_;
    171 
    172   LanguageSwitchMenu language_switch_menu_;
    173 
    174   // True when login is in process.
    175   bool login_in_process_;
    176 
    177   // If true, this view needs RoundedRect border and background.
    178   bool need_border_;
    179 
    180   // Whether Guest Mode link is needed.
    181   bool need_guest_link_;
    182 
    183   // Whether create account link is needed. Set to false for now but we may
    184   // need it back in near future.
    185   bool need_create_account_;
    186 
    187   // Ordinal position of controls inside view layout.
    188   int languages_menubutton_order_;
    189   int sign_in_button_order_;
    190 
    191   DISALLOW_COPY_AND_ASSIGN(NewUserView);
    192 };
    193 
    194 }  // namespace chromeos
    195 
    196 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_NEW_USER_VIEW_H_
    197