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      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 #include "chrome/browser/ui/views/login_view.h"
      6 
      7 #include <string>
      8 
      9 #include "base/compiler_specific.h"
     10 #include "base/message_loop.h"
     11 #include "base/utf_string_conversions.h"
     12 #include "grit/generated_resources.h"
     13 #include "ui/base/l10n/l10n_util.h"
     14 #include "views/controls/label.h"
     15 #include "views/controls/textfield/textfield.h"
     16 #include "views/layout/grid_layout.h"
     17 #include "views/layout/layout_constants.h"
     18 #include "views/widget/root_view.h"
     19 
     20 static const int kMessageWidth = 320;
     21 static const int kTextfieldStackHorizontalSpacing = 30;
     22 
     23 using views::GridLayout;
     24 
     25 ///////////////////////////////////////////////////////////////////////////////
     26 // LoginView, public:
     27 
     28 LoginView::LoginView(const std::wstring& explanation, LoginModel* model)
     29     : username_field_(new views::Textfield),
     30       password_field_(new views::Textfield(views::Textfield::STYLE_PASSWORD)),
     31       username_label_(new views::Label(UTF16ToWide(
     32           l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_USERNAME_FIELD)))),
     33       password_label_(new views::Label(UTF16ToWide(
     34           l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_PASSWORD_FIELD)))),
     35       message_label_(new views::Label(explanation)),
     36       login_model_(model) {
     37   message_label_->SetMultiLine(true);
     38   message_label_->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
     39   message_label_->SetAllowCharacterBreak(true);
     40 
     41   // Initialize the Grid Layout Manager used for this dialog box.
     42   GridLayout* layout = GridLayout::CreatePanel(this);
     43   SetLayoutManager(layout);
     44 
     45   // Add the column set for the information message at the top of the dialog
     46   // box.
     47   const int single_column_view_set_id = 0;
     48   views::ColumnSet* column_set =
     49       layout->AddColumnSet(single_column_view_set_id);
     50   column_set->AddColumn(GridLayout::FILL, GridLayout::FILL, 1,
     51                         GridLayout::FIXED, kMessageWidth, 0);
     52 
     53   // Add the column set for the user name and password fields and labels.
     54   const int labels_column_set_id = 1;
     55   column_set = layout->AddColumnSet(labels_column_set_id);
     56   column_set->AddPaddingColumn(0, kTextfieldStackHorizontalSpacing);
     57   column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
     58                         GridLayout::USE_PREF, 0, 0);
     59   column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
     60   column_set->AddColumn(GridLayout::FILL, GridLayout::CENTER, 1,
     61                         GridLayout::USE_PREF, 0, 0);
     62   column_set->AddPaddingColumn(0, kTextfieldStackHorizontalSpacing);
     63 
     64   layout->StartRow(0, single_column_view_set_id);
     65   layout->AddView(message_label_);
     66 
     67   layout->AddPaddingRow(0, views::kUnrelatedControlLargeVerticalSpacing);
     68 
     69   layout->StartRow(0, labels_column_set_id);
     70   layout->AddView(username_label_);
     71   layout->AddView(username_field_);
     72 
     73   layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
     74 
     75   layout->StartRow(0, labels_column_set_id);
     76   layout->AddView(password_label_);
     77   layout->AddView(password_field_);
     78 
     79   layout->AddPaddingRow(0, views::kUnrelatedControlVerticalSpacing);
     80 
     81   if (login_model_)
     82     login_model_->SetObserver(this);
     83 }
     84 
     85 LoginView::~LoginView() {
     86   if (login_model_)
     87     login_model_->SetObserver(NULL);
     88 }
     89 
     90 std::wstring LoginView::GetUsername() {
     91   return username_field_->text();
     92 }
     93 
     94 std::wstring LoginView::GetPassword() {
     95   return password_field_->text();
     96 }
     97 
     98 views::View* LoginView::GetInitiallyFocusedView() {
     99   return username_field_;
    100 }
    101 
    102 ///////////////////////////////////////////////////////////////////////////////
    103 // LoginView, views::View, views::LoginModelObserver overrides:
    104 
    105 void LoginView::OnAutofillDataAvailable(const std::wstring& username,
    106                                         const std::wstring& password) {
    107   if (username_field_->text().empty()) {
    108     username_field_->SetText(username);
    109     password_field_->SetText(password);
    110     username_field_->SelectAll();
    111   }
    112 }
    113