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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 #include "chrome/browser/ui/views/login_view.h"
      6 
      7 #include "chrome/grit/generated_resources.h"
      8 #include "ui/base/l10n/l10n_util.h"
      9 #include "ui/views/controls/label.h"
     10 #include "ui/views/controls/textfield/textfield.h"
     11 #include "ui/views/layout/grid_layout.h"
     12 #include "ui/views/layout/layout_constants.h"
     13 
     14 static const int kMessageWidth = 320;
     15 static const int kTextfieldStackHorizontalSpacing = 30;
     16 
     17 using password_manager::LoginModel;
     18 using views::GridLayout;
     19 
     20 ///////////////////////////////////////////////////////////////////////////////
     21 // LoginView, public:
     22 
     23 LoginView::LoginView(const base::string16& explanation,
     24                      LoginModel* model)
     25     : username_field_(new views::Textfield()),
     26       password_field_(new views::Textfield()),
     27       username_label_(new views::Label(
     28           l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_USERNAME_FIELD))),
     29       password_label_(new views::Label(
     30           l10n_util::GetStringUTF16(IDS_LOGIN_DIALOG_PASSWORD_FIELD))),
     31       message_label_(new views::Label(explanation)),
     32       login_model_(model) {
     33   password_field_->SetTextInputType(ui::TEXT_INPUT_TYPE_PASSWORD);
     34   message_label_->SetMultiLine(true);
     35   message_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
     36   message_label_->SetAllowCharacterBreak(true);
     37 
     38   // Initialize the Grid Layout Manager used for this dialog box.
     39   GridLayout* layout = GridLayout::CreatePanel(this);
     40   SetLayoutManager(layout);
     41 
     42   // Add the column set for the information message at the top of the dialog
     43   // box.
     44   const int single_column_view_set_id = 0;
     45   views::ColumnSet* column_set =
     46       layout->AddColumnSet(single_column_view_set_id);
     47   column_set->AddColumn(GridLayout::FILL, GridLayout::FILL, 1,
     48                         GridLayout::FIXED, kMessageWidth, 0);
     49 
     50   // Add the column set for the user name and password fields and labels.
     51   const int labels_column_set_id = 1;
     52   column_set = layout->AddColumnSet(labels_column_set_id);
     53   column_set->AddPaddingColumn(0, kTextfieldStackHorizontalSpacing);
     54   column_set->AddColumn(GridLayout::LEADING, GridLayout::CENTER, 0,
     55                         GridLayout::USE_PREF, 0, 0);
     56   column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
     57   column_set->AddColumn(GridLayout::FILL, GridLayout::CENTER, 1,
     58                         GridLayout::USE_PREF, 0, 0);
     59   column_set->AddPaddingColumn(0, kTextfieldStackHorizontalSpacing);
     60 
     61   layout->StartRow(0, single_column_view_set_id);
     62   layout->AddView(message_label_);
     63 
     64   layout->AddPaddingRow(0, views::kUnrelatedControlLargeVerticalSpacing);
     65 
     66   layout->StartRow(0, labels_column_set_id);
     67   layout->AddView(username_label_);
     68   layout->AddView(username_field_);
     69 
     70   layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
     71 
     72   layout->StartRow(0, labels_column_set_id);
     73   layout->AddView(password_label_);
     74   layout->AddView(password_field_);
     75 
     76   layout->AddPaddingRow(0, views::kUnrelatedControlVerticalSpacing);
     77 
     78   if (login_model_)
     79     login_model_->AddObserver(this);
     80 }
     81 
     82 LoginView::~LoginView() {
     83   if (login_model_)
     84     login_model_->RemoveObserver(this);
     85 }
     86 
     87 const base::string16& LoginView::GetUsername() const {
     88   return username_field_->text();
     89 }
     90 
     91 const base::string16& LoginView::GetPassword() const {
     92   return password_field_->text();
     93 }
     94 
     95 views::View* LoginView::GetInitiallyFocusedView() {
     96   return username_field_;
     97 }
     98 
     99 ///////////////////////////////////////////////////////////////////////////////
    100 // LoginView, views::View, password_manager::LoginModelObserver overrides:
    101 
    102 void LoginView::OnAutofillDataAvailable(const base::string16& username,
    103                                         const base::string16& password) {
    104   if (username_field_->text().empty()) {
    105     username_field_->SetText(username);
    106     password_field_->SetText(password);
    107     username_field_->SelectAll(true);
    108   }
    109 }
    110 
    111 void LoginView::OnLoginModelDestroying() {
    112   login_model_->RemoveObserver(this);
    113   login_model_ = NULL;
    114 }
    115