ash/system/tray/tray_utils.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 "ash/system/tray/tray_utils.h"
   6
   7 #include "ash/system/tray/tray_constants.h"
   8 #include "ash/system/tray/tray_item_view.h"
   9 #include "ui/accessibility/ax_view_state.h"
  10 #include "ui/gfx/font_list.h"
  11 #include "ui/gfx/geometry/vector2d.h"
  12 #include "ui/views/border.h"
  13 #include "ui/views/controls/label.h"
  14
  15 namespace ash {
  16
  17 void SetupLabelForTray(views::Label* label) {
  18   label->SetFontList(gfx::FontList().Derive(1, gfx::Font::BOLD));
  19   label->SetAutoColorReadabilityEnabled(false);
  20   label->SetEnabledColor(SK_ColorWHITE);
  21   label->SetBackgroundColor(SkColorSetARGB(0, 255, 255, 255));
  22   label->SetShadows(gfx::ShadowValues(
  23       1,
  24       gfx::ShadowValue(gfx::Vector2d(0, 1), 0, SkColorSetARGB(64, 0, 0, 0))));
  25 }
  26
  27 void SetTrayImageItemBorder(views::View* tray_view,
  28                             ShelfAlignment alignment) {
  29   if (alignment == SHELF_ALIGNMENT_BOTTOM ||
  30       alignment == SHELF_ALIGNMENT_TOP) {
  31     tray_view->SetBorder(views::Border::CreateEmptyBorder(
  32         0,
  33         kTrayImageItemHorizontalPaddingBottomAlignment,
  34         0,
  35         kTrayImageItemHorizontalPaddingBottomAlignment));
  36   } else {
  37     tray_view->SetBorder(views::Border::CreateEmptyBorder(
  38         kTrayImageItemVerticalPaddingVerticalAlignment,
  39         kTrayImageItemHorizontalPaddingVerticalAlignment,
  40         kTrayImageItemVerticalPaddingVerticalAlignment,
  41         kTrayImageItemHorizontalPaddingVerticalAlignment));
  42   }
  43 }
  44
  45 void SetTrayLabelItemBorder(TrayItemView* tray_view,
  46                             ShelfAlignment alignment) {
  47   if (alignment == SHELF_ALIGNMENT_BOTTOM ||
  48       alignment == SHELF_ALIGNMENT_TOP) {
  49     tray_view->SetBorder(views::Border::CreateEmptyBorder(
  50         0,
  51         kTrayLabelItemHorizontalPaddingBottomAlignment,
  52         0,
  53         kTrayLabelItemHorizontalPaddingBottomAlignment));
  54   } else {
  55     // Center the label for vertical launcher alignment.
  56     int horizontal_padding = std::max(0,
  57         (tray_view->GetPreferredSize().width() -
  58         tray_view->label()->GetPreferredSize().width()) / 2);
  59     tray_view->SetBorder(views::Border::CreateEmptyBorder(
  60         kTrayLabelItemVerticalPaddingVerticalAlignment,
  61         horizontal_padding,
  62         kTrayLabelItemVerticalPaddingVerticalAlignment,
  63         horizontal_padding));
  64   }
  65 }
  66
  67 void GetAccessibleLabelFromDescendantViews(
  68     views::View* view,
  69     std::vector<base::string16>& out_labels) {
  70   ui::AXViewState temp_state;
  71   view->GetAccessibleState(&temp_state);
  72   if (!temp_state.name.empty())
  73     out_labels.push_back(temp_state.name);
  74
  75   // Do not descend into static text labels which may compute their own labels
  76   // recursively.
  77   if (temp_state.role == ui::AX_ROLE_STATIC_TEXT)
  78     return;
  79
  80   for (int i = 0; i < view->child_count(); ++i)
  81     GetAccessibleLabelFromDescendantViews(view->child_at(i), out_labels);
  82 }
  83
  84 }  // namespace ash