src/ui/app_list/views/contents_switcher_view.cc

   1 // Copyright 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 "ui/app_list/views/contents_switcher_view.h"
   6
   7 #include "grit/ui_resources.h"
   8 #include "ui/app_list/app_list_constants.h"
   9 #include "ui/app_list/views/contents_view.h"
  10 #include "ui/base/resource/resource_bundle.h"
  11 #include "ui/views/controls/button/custom_button.h"
  12 #include "ui/views/controls/button/image_button.h"
  13 #include "ui/views/layout/box_layout.h"
  14
  15 namespace app_list {
  16
  17 namespace {
  18
  19 const int kPreferredHeight = 32;
  20 const int kButtonSpacing = 4;
  21
  22 }  // namespace
  23
  24 ContentsSwitcherView::ContentsSwitcherView(ContentsView* contents_view)
  25     : contents_view_(contents_view), buttons_(new views::View) {
  26   AddChildView(buttons_);
  27
  28   buttons_->SetLayoutManager(new views::BoxLayout(
  29       views::BoxLayout::kHorizontal, 0, 0, kButtonSpacing));
  30   AddSwitcherButton(IDR_APP_LIST_SEARCH_ICON,
  31                     ContentsView::SHOW_SEARCH_RESULTS);
  32   AddSwitcherButton(IDR_APP_LIST_APPS_ICON, ContentsView::SHOW_APPS);
  33 }
  34
  35 ContentsSwitcherView::~ContentsSwitcherView() {}
  36
  37 void ContentsSwitcherView::AddSwitcherButton(int resource_id, int tag) {
  38   views::ImageButton* button = new views::ImageButton(this);
  39   button->SetImage(
  40       views::CustomButton::STATE_NORMAL,
  41       ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id));
  42   button->set_tag(tag);
  43   buttons_->AddChildView(button);
  44 }
  45
  46 gfx::Size ContentsSwitcherView::GetPreferredSize() {
  47   return gfx::Size(buttons_->GetPreferredSize().width(), kPreferredHeight);
  48 }
  49
  50 void ContentsSwitcherView::Layout() {
  51   gfx::Rect rect(GetContentsBounds());
  52
  53   // Makes |buttons_| horizontally center and vertically fill.
  54   gfx::Size buttons_size(buttons_->GetPreferredSize());
  55   gfx::Rect buttons_bounds(rect.CenterPoint().x() - buttons_size.width() / 2,
  56                            rect.y(),
  57                            buttons_size.width(),
  58                            rect.height());
  59   buttons_->SetBoundsRect(gfx::IntersectRects(rect, buttons_bounds));
  60 }
  61
  62 void ContentsSwitcherView::ButtonPressed(views::Button* sender,
  63                                          const ui::Event& event) {
  64   contents_view_->SetShowState(
  65       static_cast<ContentsView::ShowState>(sender->tag()));
  66 }
  67
  68 }  // namespace app_list