chrome/browser/ui/views/login_view.cc

   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 #include "chrome/browser/ui/views/login_view.h"
   6
   7 #include <string>
   8
   9 #include "base/compiler_specific.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "grit/generated_resources.h"
  13 #include "ui/base/l10n/l10n_util.h"
  14 #include "ui/views/controls/label.h"
  15 #include "ui/views/controls/textfield/textfield.h"
  16 #include "ui/views/layout/grid_layout.h"
  17 #include "ui/views/layout/layout_constants.h"
  18 #include "ui/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 base::string16& explanation,
  29                      LoginModel* model)
  30     : username_field_(new views::Textfield()),
  31       password_field_(new views::Textfield()),
  32       username_label_(new views::Label(
  33           l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_USERNAME_FIELD))),
  34       password_label_(new views::Label(
  35           l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_PASSWORD_FIELD))),
  36       message_label_(new views::Label(explanation)),
  37       login_model_(model) {
  38   password_field_->SetTextInputType(ui::TEXT_INPUT_TYPE_PASSWORD);
  39   message_label_->SetMultiLine(true);
  40   message_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  41   message_label_->SetAllowCharacterBreak(true);
  42
  43   // Initialize the Grid Layout Manager used for this dialog box.
  44   GridLayout* layout = GridLayout::CreatePanel(this);
  45   SetLayoutManager(layout);
  46
  47   // Add the column set for the information message at the top of the dialog
  48   // box.
  49   const int single_column_view_set_id = 0;
  50   views::ColumnSet* column_set =
  51       layout->AddColumnSet(single_column_view_set_id);
  52   column_set->AddColumn(GridLayout::FILL, GridLayout::FILL, 1,
  53                         GridLayout::FIXED, kMessageWidth, 0);
  54
  55   // Add the column set for the user name and password fields and labels.
  56   const int labels_column_set_id = 1;
  57   column_set = layout->AddColumnSet(labels_column_set_id);
  58   column_set->AddPaddingColumn(0, kTextfieldStackHorizontalSpacing);
  59   column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
  60                         GridLayout::USE_PREF, 0, 0);
  61   column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
  62   column_set->AddColumn(GridLayout::FILL, GridLayout::CENTER, 1,
  63                         GridLayout::USE_PREF, 0, 0);
  64   column_set->AddPaddingColumn(0, kTextfieldStackHorizontalSpacing);
  65
  66   layout->StartRow(0, single_column_view_set_id);
  67   layout->AddView(message_label_);
  68
  69   layout->AddPaddingRow(0, views::kUnrelatedControlLargeVerticalSpacing);
  70
  71   layout->StartRow(0, labels_column_set_id);
  72   layout->AddView(username_label_);
  73   layout->AddView(username_field_);
  74
  75   layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
  76
  77   layout->StartRow(0, labels_column_set_id);
  78   layout->AddView(password_label_);
  79   layout->AddView(password_field_);
  80
  81   layout->AddPaddingRow(0, views::kUnrelatedControlVerticalSpacing);
  82
  83   if (login_model_)
  84     login_model_->AddObserver(this);
  85 }
  86
  87 LoginView::~LoginView() {
  88   if (login_model_)
  89     login_model_->RemoveObserver(this);
  90 }
  91
  92 base::string16 LoginView::GetUsername() {
  93   return username_field_->text();
  94 }
  95
  96 base::string16 LoginView::GetPassword() {
  97   return password_field_->text();
  98 }
  99
 100 views::View* LoginView::GetInitiallyFocusedView() {
 101   return username_field_;
 102 }
 103
 104 ///////////////////////////////////////////////////////////////////////////////
 105 // LoginView, views::View, views::LoginModelObserver overrides:
 106
 107 void LoginView::OnAutofillDataAvailable(const base::string16& username,
 108                                         const base::string16& password) {
 109   if (username_field_->text().empty()) {
 110     username_field_->SetText(username);
 111     password_field_->SetText(password);
 112     username_field_->SelectAll(true);
 113   }
 114 }
 115
 116 void LoginView::OnLoginModelDestroying() {
 117   login_model_->RemoveObserver(this);
 118   login_model_ = NULL;
 119 }