// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/views/cookie_info_view.h"

#include <algorithm>

#include "base/i18n/time_formatting.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/string16.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browsing_data/cookies_tree_model.h"
#include "grit/generated_resources.h"
#include "grit/locale_settings.h"
#include "net/cookies/canonical_cookie.h"
#include "net/cookies/parsed_cookie.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/gfx/canvas.h"
#include "ui/native_theme/native_theme.h"
#include "ui/views/border.h"
#include "ui/views/controls/label.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/layout/grid_layout.h"
#include "ui/views/layout/layout_constants.h"
#include "ui/views/window/dialog_delegate.h"

namespace {

// Adjustment to the spacing between subsequent label-field lines.
const int kExtraLineHeightPadding = 3;

}  // namespace

///////////////////////////////////////////////////////////////////////////////
// CookieInfoView, public:

CookieInfoView::CookieInfoView()
    : name_label_(NULL),
      name_value_field_(NULL),
      content_label_(NULL),
      content_value_field_(NULL),
      domain_label_(NULL),
      domain_value_field_(NULL),
      path_label_(NULL),
      path_value_field_(NULL),
      send_for_label_(NULL),
      send_for_value_field_(NULL),
      created_label_(NULL),
      created_value_field_(NULL),
      expires_label_(NULL),
      expires_value_field_(NULL) {
}

CookieInfoView::~CookieInfoView() {
}

void CookieInfoView::SetCookie(const std::string& domain,
                               const net::CanonicalCookie& cookie) {
  name_value_field_->SetText(base::UTF8ToUTF16(cookie.Name()));
  content_value_field_->SetText(base::UTF8ToUTF16(cookie.Value()));
  domain_value_field_->SetText(base::UTF8ToUTF16(domain));
  path_value_field_->SetText(base::UTF8ToUTF16(cookie.Path()));
  created_value_field_->SetText(
      base::TimeFormatFriendlyDateAndTime(cookie.CreationDate()));

  base::string16 expire_text = cookie.IsPersistent() ?
      base::TimeFormatFriendlyDateAndTime(cookie.ExpiryDate()) :
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_EXPIRES_SESSION);

  expires_value_field_->SetText(expire_text);
  send_for_value_field_->SetText(cookie.IsSecure() ?
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_SENDFOR_SECURE) :
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_SENDFOR_ANY));
  EnableCookieDisplay(true);
  Layout();
}

void CookieInfoView::SetCookieString(const GURL& url,
                                     const std::string& cookie_line) {
  net::ParsedCookie pc(cookie_line);
  net::CanonicalCookie cookie(url, pc);
  SetCookie(pc.HasDomain() ? pc.Domain() : url.host(), cookie);
}


void CookieInfoView::ClearCookieDisplay() {
  base::string16 no_cookie_string =
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_NONESELECTED);
  name_value_field_->SetText(no_cookie_string);
  content_value_field_->SetText(no_cookie_string);
  domain_value_field_->SetText(no_cookie_string);
  path_value_field_->SetText(no_cookie_string);
  send_for_value_field_->SetText(no_cookie_string);
  created_value_field_->SetText(no_cookie_string);
  expires_value_field_->SetText(no_cookie_string);
  EnableCookieDisplay(false);
}

void CookieInfoView::EnableCookieDisplay(bool enabled) {
  name_value_field_->SetEnabled(enabled);
  content_value_field_->SetEnabled(enabled);
  domain_value_field_->SetEnabled(enabled);
  path_value_field_->SetEnabled(enabled);
  send_for_value_field_->SetEnabled(enabled);
  created_value_field_->SetEnabled(enabled);
  expires_value_field_->SetEnabled(enabled);
}

///////////////////////////////////////////////////////////////////////////////
// CookieInfoView, views::View overrides.

void CookieInfoView::ViewHierarchyChanged(
    const ViewHierarchyChangedDetails& details) {
  if (details.is_add && details.child == this)
    Init();
}

void CookieInfoView::AddLabelRow(int layout_id, views::GridLayout* layout,
                                 views::Label* label,
                                 views::Textfield* text_field) {
  layout->StartRow(0, layout_id);
  layout->AddView(label);
  layout->AddView(text_field, 2, 1, views::GridLayout::FILL,
                  views::GridLayout::CENTER);
  layout->AddPaddingRow(0, kExtraLineHeightPadding);

  // Now that the Textfield is in the view hierarchy, it can be initialized.
  text_field->SetReadOnly(true);
  text_field->SetBorder(views::Border::NullBorder());
  // Color these borderless text areas the same as the containing dialog.
  text_field->SetBackgroundColor(GetNativeTheme()->GetSystemColor(
      ui::NativeTheme::kColorId_DialogBackground));
  text_field->SetTextColor(SkColorSetRGB(0x78, 0x78, 0x78));
}

///////////////////////////////////////////////////////////////////////////////
// CookieInfoView, private:

void CookieInfoView::Init() {
  // Ensure we don't run this more than once and leak memory.
  DCHECK(!name_label_);
  name_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_NAME_LABEL));
  name_value_field_ = new views::Textfield;
  content_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_CONTENT_LABEL));
  content_value_field_ = new views::Textfield;
  domain_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_DOMAIN_LABEL));
  domain_value_field_ = new views::Textfield;
  path_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_PATH_LABEL));
  path_value_field_ = new views::Textfield;
  send_for_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_SENDFOR_LABEL));
  send_for_value_field_ = new views::Textfield;
  created_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_CREATED_LABEL));
  created_value_field_ = new views::Textfield;
  expires_label_ = new views::Label(
      l10n_util::GetStringUTF16(IDS_COOKIES_COOKIE_EXPIRES_LABEL));
  expires_value_field_ = new views::Textfield;

  views::GridLayout* layout = new views::GridLayout(this);
  layout->SetInsets(0, views::kButtonHEdgeMarginNew,
                    0, views::kButtonHEdgeMarginNew);
  SetLayoutManager(layout);

  int three_column_layout_id = 0;
  views::ColumnSet* column_set = layout->AddColumnSet(three_column_layout_id);
  column_set->AddColumn(views::GridLayout::TRAILING, views::GridLayout::CENTER,
                        0, views::GridLayout::USE_PREF, 0, 0);
  column_set->AddPaddingColumn(0, views::kRelatedControlHorizontalSpacing);
  column_set->AddColumn(views::GridLayout::TRAILING, views::GridLayout::CENTER,
                        0, views::GridLayout::USE_PREF, 0, 0);
  column_set->AddColumn(views::GridLayout::FILL, views::GridLayout::CENTER,
                        1, views::GridLayout::USE_PREF, 0, 0);

  AddLabelRow(three_column_layout_id, layout, name_label_, name_value_field_);
  AddLabelRow(three_column_layout_id, layout, content_label_,
              content_value_field_);
  AddLabelRow(three_column_layout_id, layout, domain_label_,
              domain_value_field_);
  AddLabelRow(three_column_layout_id, layout, path_label_, path_value_field_);
  AddLabelRow(three_column_layout_id, layout, send_for_label_,
              send_for_value_field_);
  AddLabelRow(three_column_layout_id, layout, created_label_,
              created_value_field_);
  AddLabelRow(three_column_layout_id, layout, expires_label_,
              expires_value_field_);
}