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      1 // Copyright (c) 2012 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_FIRST_RUN_TRY_CHROME_DIALOG_VIEW_H_
      6 #define CHROME_BROWSER_FIRST_RUN_TRY_CHROME_DIALOG_VIEW_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/compiler_specific.h"
     10 #include "ui/gfx/native_widget_types.h"
     11 #include "ui/views/controls/button/button.h"
     12 #include "ui/views/controls/link_listener.h"
     13 
     14 class ProcessSingleton;
     15 
     16 namespace gfx {
     17 class Rect;
     18 }
     19 
     20 namespace views {
     21 class RadioButton;
     22 class Checkbox;
     23 class Widget;
     24 }
     25 
     26 // This class displays a modal dialog using the views system. The dialog asks
     27 // the user to give chrome another try. This class only handles the UI so the
     28 // resulting actions are up to the caller. One flavor looks like this:
     29 //
     30 //   +-----------------------------------------------+
     31 //   | |icon| There is a new, safer version      [x] |
     32 //   | |icon| of Google Chrome available             |
     33 //   |        [o] Try it out (already installed)     |
     34 //   |        [ ] Uninstall Google Chrome            |
     35 //   |        [ OK ] [Don't bug me]                  |
     36 //   |        _why_am_I_seeing this?_                |
     37 //   +-----------------------------------------------+
     38 //
     39 // Another flavor looks like:
     40 //   +-----------------------------------------------+
     41 //   | |icon| There is a new, safer version      [x] |
     42 //   | |icon| of Google Chrome available             |
     43 //   |        [o] Try it out (already installed)     |
     44 //   |        [ ] Don't bug me                       |
     45 //   |                  [ OK ]                       |
     46 //   +-----------------------------------------------+
     47 //
     48 // And the 2013 version looks like:
     49 //   +-----------------------------------------------+
     50 //   | |icon| There is a new version of          [x] |
     51 //   | |icon| Google Chrome available                |
     52 //   |        [o] Try it out (already installed)     |
     53 //   |        [ ] Don't bug me                       |
     54 //   | --------------------------------------------- |
     55 //   | [x] Make it the default browser       [ OK ]  |
     56 //   +-----------------------------------------------+
     57 
     58 class TryChromeDialogView : public views::ButtonListener,
     59                             public views::LinkListener {
     60  public:
     61   // Receives a handle to the active modal dialog, or NULL when the active
     62   // dialog is dismissed.
     63   typedef base::Callback<void(gfx::NativeWindow active_dialog)>
     64       ActiveModalDialogListener;
     65 
     66   enum Result {
     67     TRY_CHROME,             // Launch chrome right now.
     68     TRY_CHROME_AS_DEFAULT,  // Launch chrome and make it the default.
     69     NOT_NOW,                // Don't launch chrome. Exit now.
     70     UNINSTALL_CHROME,       // Initiate chrome uninstall and exit.
     71     DIALOG_ERROR,           // An error occurred creating the dialog.
     72     COUNT
     73   };
     74 
     75   // Shows a modal dialog asking the user to give chrome another try. See
     76   // above for the possible outcomes of the function. This is an experimental,
     77   // non-localized dialog.
     78   // |flavor| can be 0, 1, 2 or 3 and selects what strings to present.
     79   // |listener| will be notified when the dialog becomes active and when it is
     80   // dismissed.
     81   // Note that the dialog has no parent and it will position itself in a lower
     82   // corner of the screen. The dialog does not steal focus and does not have an
     83   // entry in the taskbar.
     84   static Result Show(size_t flavor, const ActiveModalDialogListener& listener);
     85 
     86  private:
     87   explicit TryChromeDialogView(size_t flavor);
     88   virtual ~TryChromeDialogView();
     89 
     90   Result ShowModal(const ActiveModalDialogListener& listener);
     91 
     92   // Returns a screen rectangle that is fit to show the window. In particular
     93   // it has the following properties: a) is visible and b) is attached to the
     94   // bottom of the working area. For LTR machines it returns a left side
     95   // rectangle and for RTL it returns a right side rectangle so that the dialog
     96   // does not compete with the standar place of the start menu.
     97   gfx::Rect ComputeWindowPosition(int width, int height, bool is_RTL);
     98 
     99   // Create a windows region that looks like a toast of width |w| and height
    100   // |h|. This is best effort, so we don't care much if the operation fails.
    101   void SetToastRegion(HWND window, int w, int h);
    102 
    103   // views::ButtonListener:
    104   // We have two buttons and according to what the user clicked we set |result_|
    105   // and we should always close and end the modal loop.
    106   virtual void ButtonPressed(views::Button* sender,
    107                              const ui::Event& event) OVERRIDE;
    108 
    109   // views::LinkListener:
    110   // If the user selects the link we need to fire off the default browser that
    111   // by some convoluted logic should not be chrome.
    112   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
    113 
    114   // Controls which flavor of the heading text to use.
    115   size_t flavor_;
    116 
    117   // We don't own any of these pointers. The |popup_| owns itself and owns the
    118   // other views.
    119   views::Widget* popup_;
    120   views::RadioButton* try_chrome_;
    121   views::RadioButton* kill_chrome_;
    122   views::RadioButton* dont_try_chrome_;
    123   views::Checkbox* make_default_;
    124   Result result_;
    125 
    126   DISALLOW_COPY_AND_ASSIGN(TryChromeDialogView);
    127 };
    128 
    129 #endif  // CHROME_BROWSER_FIRST_RUN_TRY_CHROME_DIALOG_VIEW_H_
    130