chrome/browser/extensions/api/file_system/request_file_system_dialog_view.cc

   1 // Copyright 2015 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/extensions/api/file_system/request_file_system_dialog_view.h"
   6
   7 #include <cstdlib>
   8
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "chrome/grit/generated_resources.h"
  12 #include "components/constrained_window/constrained_window_views.h"
  13 #include "content/public/browser/web_contents.h"
  14 #include "ui/base/l10n/l10n_util.h"
  15 #include "ui/gfx/font.h"
  16 #include "ui/gfx/range/range.h"
  17 #include "ui/views/controls/styled_label.h"
  18 #include "ui/views/layout/box_layout.h"
  19 #include "ui/views/layout/layout_constants.h"
  20
  21 namespace {
  22
  23 // Maximum width of the dialog in pixels.
  24 const int kDialogMaxWidth = 320;
  25
  26 }  // namespace
  27
  28 // static
  29 void RequestFileSystemDialogView::ShowDialog(
  30     content::WebContents* web_contents,
  31     const extensions::Extension& extension,
  32     base::WeakPtr<file_manager::Volume> volume,
  33     bool writable,
  34     const base::Callback<void(ui::DialogButton)>& callback) {
  35   constrained_window::ShowWebModalDialogViews(
  36       new RequestFileSystemDialogView(extension, volume, writable, callback),
  37       web_contents);
  38 }
  39
  40 RequestFileSystemDialogView::~RequestFileSystemDialogView() {
  41 }
  42
  43 base::string16 RequestFileSystemDialogView::GetDialogTitle() const {
  44   return l10n_util::GetStringUTF16(
  45       IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_TITLE);
  46 }
  47
  48 int RequestFileSystemDialogView::GetDefaultDialogButton() const {
  49   return ui::DIALOG_BUTTON_CANCEL;
  50 }
  51
  52 base::string16 RequestFileSystemDialogView::GetDialogButtonLabel(
  53     ui::DialogButton button) const {
  54   switch (button) {
  55     case ui::DIALOG_BUTTON_OK:
  56       return l10n_util::GetStringUTF16(
  57           IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_YES_BUTTON);
  58     case ui::DIALOG_BUTTON_CANCEL:
  59       return l10n_util::GetStringUTF16(
  60           IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_NO_BUTTON);
  61     default:
  62       NOTREACHED();
  63   }
  64   return base::string16();
  65 }
  66
  67 ui::ModalType RequestFileSystemDialogView::GetModalType() const {
  68   return ui::MODAL_TYPE_CHILD;
  69 }
  70
  71 views::View* RequestFileSystemDialogView::GetContentsView() {
  72   return contents_view_;
  73 }
  74
  75 views::Widget* RequestFileSystemDialogView::GetWidget() {
  76   return contents_view_->GetWidget();
  77 }
  78
  79 const views::Widget* RequestFileSystemDialogView::GetWidget() const {
  80   return contents_view_->GetWidget();
  81 }
  82
  83 bool RequestFileSystemDialogView::Cancel() {
  84   callback_.Run(ui::DIALOG_BUTTON_CANCEL);
  85   return true;
  86 }
  87
  88 bool RequestFileSystemDialogView::Accept() {
  89   callback_.Run(ui::DIALOG_BUTTON_OK);
  90   return true;
  91 }
  92
  93 RequestFileSystemDialogView::RequestFileSystemDialogView(
  94     const extensions::Extension& extension,
  95     base::WeakPtr<file_manager::Volume> volume,
  96     bool writable,
  97     const base::Callback<void(ui::DialogButton)>& callback)
  98     : callback_(callback), contents_view_(new views::View) {
  99   DCHECK(!callback_.is_null());
 100
 101   // If the volume is gone, then cancel the dialog.
 102   if (!volume.get()) {
 103     base::ThreadTaskRunnerHandle::Get()->PostTask(
 104         FROM_HERE, base::Bind(callback, ui::DIALOG_BUTTON_CANCEL));
 105     return;
 106   }
 107
 108   // TODO(mtomasz): Improve the dialog contents, so it's easier for the user
 109   // to understand what device is being requested.
 110   const base::string16 display_name =
 111       base::UTF8ToUTF16(!volume->volume_label().empty() ? volume->volume_label()
 112                                                         : volume->volume_id());
 113   const base::string16 message = l10n_util::GetStringFUTF16(
 114       writable ? IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_WRITABLE_MESSAGE
 115                : IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_MESSAGE,
 116       display_name);
 117
 118   // Find location of the placeholder by comparing message and message_host
 119   // strings in order to apply the bold style on the display name.
 120   const base::string16 message_host = l10n_util::GetStringFUTF16(
 121       writable ? IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_WRITABLE_MESSAGE
 122                : IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_MESSAGE,
 123       base::string16());
 124
 125   size_t placeholder_start = 0;
 126   while (placeholder_start < message.size() &&
 127          message[placeholder_start] == message_host[placeholder_start]) {
 128     ++placeholder_start;
 129   }
 130
 131   views::StyledLabel* const label = new views::StyledLabel(message, nullptr);
 132   views::StyledLabel::RangeStyleInfo bold_style;
 133   bold_style.font_style = gfx::Font::BOLD;
 134
 135   label->AddStyleRange(
 136       gfx::Range(placeholder_start, placeholder_start + display_name.size()),
 137       bold_style);
 138
 139   views::BoxLayout* const layout = new views::BoxLayout(
 140       views::BoxLayout::kHorizontal, views::kButtonHEdgeMarginNew,
 141       views::kPanelVertMargin, 0);
 142   contents_view_->SetLayoutManager(layout);
 143
 144   label->SizeToFit(kDialogMaxWidth - 2 * views::kButtonHEdgeMarginNew);
 145   contents_view_->AddChildView(label);
 146 }