ash/system/tray/tray_popup_item_container.cc

   1 // Copyright (c) 2014 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_popup_item_container.h"
   6
   7 #include "ash/system/tray/tray_constants.h"
   8 #include "base/command_line.h"
   9 #include "ui/base/ui_base_switches_util.h"
  10 #include "ui/gfx/canvas.h"
  11 #include "ui/views/border.h"
  12 #include "ui/views/layout/box_layout.h"
  13
  14 namespace ash {
  15
  16 TrayPopupItemContainer::TrayPopupItemContainer(views::View* view,
  17                                                bool change_background,
  18                                                bool draw_border)
  19     : active_(false),
  20       change_background_(change_background) {
  21   set_notify_enter_exit_on_child(true);
  22   if (draw_border) {
  23     SetBorder(
  24         views::Border::CreateSolidSidedBorder(0, 0, 1, 0, kBorderLightColor));
  25   }
  26   views::BoxLayout* layout = new views::BoxLayout(
  27       views::BoxLayout::kVertical, 0, 0, 0);
  28   layout->SetDefaultFlex(1);
  29   SetLayoutManager(layout);
  30   SetPaintToLayer(view->layer() != NULL);
  31   if (view->layer())
  32     SetFillsBoundsOpaquely(view->layer()->fills_bounds_opaquely());
  33   AddChildView(view);
  34   SetVisible(view->visible());
  35 }
  36
  37 TrayPopupItemContainer::~TrayPopupItemContainer() {
  38 }
  39
  40 void TrayPopupItemContainer::SetActive(bool active) {
  41   if (!change_background_ || active_ == active)
  42     return;
  43   active_ = active;
  44   SchedulePaint();
  45 }
  46
  47 void TrayPopupItemContainer::ChildVisibilityChanged(View* child) {
  48   if (visible() == child->visible())
  49     return;
  50   SetVisible(child->visible());
  51   PreferredSizeChanged();
  52 }
  53
  54 void TrayPopupItemContainer::ChildPreferredSizeChanged(View* child) {
  55   PreferredSizeChanged();
  56 }
  57
  58 void TrayPopupItemContainer::OnMouseEntered(const ui::MouseEvent& event) {
  59   SetActive(true);
  60 }
  61
  62 void TrayPopupItemContainer::OnMouseExited(const ui::MouseEvent& event) {
  63   SetActive(false);
  64 }
  65
  66 void TrayPopupItemContainer::OnGestureEvent(ui::GestureEvent* event) {
  67   if (!switches::IsTouchFeedbackEnabled())
  68     return;
  69   if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
  70     SetActive(true);
  71   } else if (event->type() == ui::ET_GESTURE_TAP_CANCEL ||
  72              event->type() == ui::ET_GESTURE_TAP) {
  73     SetActive(false);
  74   }
  75 }
  76
  77 void TrayPopupItemContainer::OnPaintBackground(gfx::Canvas* canvas) {
  78   if (child_count() == 0)
  79     return;
  80
  81   views::View* view = child_at(0);
  82   if (!view->background()) {
  83     canvas->FillRect(gfx::Rect(size()), (active_) ? kHoverBackgroundColor
  84                                                   : kBackgroundColor);
  85   }
  86 }
  87
  88 }  // namespace ash