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      1 // Copyright 2014 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_UI_AUTOFILL_PASSWORD_GENERATION_POPUP_CONTROLLER_IMPL_H_
      6 #define CHROME_BROWSER_UI_AUTOFILL_PASSWORD_GENERATION_POPUP_CONTROLLER_IMPL_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/memory/weak_ptr.h"
     12 #include "chrome/browser/ui/autofill/password_generation_popup_controller.h"
     13 #include "chrome/browser/ui/autofill/popup_controller_common.h"
     14 #include "components/autofill/core/common/password_form.h"
     15 #include "ui/gfx/native_widget_types.h"
     16 #include "ui/gfx/range/range.h"
     17 #include "ui/gfx/rect.h"
     18 #include "ui/gfx/rect_f.h"
     19 
     20 namespace content {
     21 struct NativeWebKeyboardEvent;
     22 class WebContents;
     23 }
     24 
     25 namespace password_manager {
     26 class PasswordManager;
     27 }
     28 
     29 namespace autofill {
     30 
     31 class PasswordGenerator;
     32 class PasswordGenerationPopupObserver;
     33 class PasswordGenerationPopupView;
     34 
     35 // This class controls a PasswordGenerationPopupView. It is responsible for
     36 // determining the location of the popup, handling keypress events while the
     37 // popup is active, and notifying both the renderer and the password manager
     38 // if the password is accepted.
     39 class PasswordGenerationPopupControllerImpl
     40     : public PasswordGenerationPopupController {
     41  public:
     42   // Create a controller or return |previous| if it is suitable. Will hide
     43   // |previous| if it is not returned. |bounds| is the bounds of the element
     44   // that we are showing the dropdown for in screen space. |form| is the
     45   // identifier for the form that we are filling, and is used to notify
     46   // |password_manager| if the password is generated. |max_length| is used to
     47   // determine the length of the password shown. If not NULL, |observer| will
     48   // be notified of changes of the popup state.
     49   static base::WeakPtr<PasswordGenerationPopupControllerImpl> GetOrCreate(
     50       base::WeakPtr<PasswordGenerationPopupControllerImpl> previous,
     51       const gfx::RectF& bounds,
     52       const PasswordForm& form,
     53       int max_length,
     54       password_manager::PasswordManager* password_manager,
     55       PasswordGenerationPopupObserver* observer,
     56       content::WebContents* web_contents,
     57       gfx::NativeView container_view);
     58   virtual ~PasswordGenerationPopupControllerImpl();
     59 
     60   // Create a PasswordGenerationPopupView if one doesn't already exist.
     61   // If |display_password| is true, a generated password is shown that can be
     62   // selected by the user. Otherwise just the text explaining generated
     63   // passwords is shown. Idempotent.
     64   void Show(bool display_password);
     65 
     66   // Hides the popup and destroys |this|.
     67   void HideAndDestroy();
     68 
     69   // Accessors.
     70   content::WebContents* web_contents() {
     71     return controller_common_.web_contents();
     72   }
     73   const gfx::RectF& element_bounds() {
     74     return controller_common_.element_bounds();
     75   }
     76 
     77  protected:
     78   PasswordGenerationPopupControllerImpl(
     79       const gfx::RectF& bounds,
     80       const PasswordForm& form,
     81       int max_length,
     82       password_manager::PasswordManager* password_manager,
     83       PasswordGenerationPopupObserver* observer,
     84       content::WebContents* web_contents,
     85       gfx::NativeView container_view);
     86 
     87   // Handle to the popup. May be NULL if popup isn't showing.
     88   PasswordGenerationPopupView* view_;
     89 
     90  private:
     91   // PasswordGenerationPopupController implementation:
     92   virtual void Hide() OVERRIDE;
     93   virtual void ViewDestroyed() OVERRIDE;
     94   virtual void SetSelectionAtPoint(const gfx::Point& point) OVERRIDE;
     95   virtual bool AcceptSelectedLine() OVERRIDE;
     96   virtual void SelectionCleared() OVERRIDE;
     97   virtual void OnSavedPasswordsLinkClicked() OVERRIDE;
     98   virtual int GetMinimumWidth() OVERRIDE;
     99   virtual gfx::NativeView container_view() OVERRIDE;
    100   virtual const gfx::Rect& popup_bounds() const OVERRIDE;
    101   virtual bool display_password() const OVERRIDE;
    102   virtual bool password_selected() const OVERRIDE;
    103   virtual base::string16 password() const OVERRIDE;
    104   virtual base::string16 SuggestedText() OVERRIDE;
    105   virtual const base::string16& HelpText() OVERRIDE;
    106   virtual const gfx::Range& HelpTextLinkRange() OVERRIDE;
    107 
    108   base::WeakPtr<PasswordGenerationPopupControllerImpl> GetWeakPtr();
    109 
    110   bool HandleKeyPressEvent(const content::NativeWebKeyboardEvent& event);
    111 
    112   // Set if the password is currently selected.
    113   void PasswordSelected(bool selected);
    114 
    115   // Accept the password. Causes the controller to hide itself as the popup
    116   // is no longer necessary.
    117   void PasswordAccepted();
    118 
    119   // Accept password if it's selected.
    120   bool PossiblyAcceptPassword();
    121 
    122   // Get desired size of popup. Height depends on width because we do text
    123   // wrapping.
    124   void CalculateBounds();
    125 
    126   PasswordForm form_;
    127   password_manager::PasswordManager* password_manager_;
    128 
    129   // May be NULL.
    130   PasswordGenerationPopupObserver* observer_;
    131 
    132   // Controls how passwords are generated.
    133   scoped_ptr<PasswordGenerator> generator_;
    134 
    135   // Contains common popup functionality.
    136   PopupControllerCommon controller_common_;
    137 
    138   // Help text and the range in the text that corresponds to the saved passwords
    139   // link.
    140   base::string16 help_text_;
    141   gfx::Range link_range_;
    142 
    143   base::string16 current_password_;
    144   bool password_selected_;
    145 
    146   // If a password will be shown in this popup.
    147   bool display_password_;
    148 
    149   // Bounds for all the elements of the popup.
    150   gfx::Rect popup_bounds_;
    151 
    152   base::WeakPtrFactory<PasswordGenerationPopupControllerImpl> weak_ptr_factory_;
    153 
    154   DISALLOW_COPY_AND_ASSIGN(PasswordGenerationPopupControllerImpl);
    155 };
    156 
    157 }  // namespace autofill
    158 
    159 #endif  // CHROME_BROWSER_UI_AUTOFILL_PASSWORD_GENERATION_POPUP_CONTROLLER_IMPL_H_
    160