contents_switcher_view.cc revision 6d86b77056ed63eb6871182f42a9fd5f07550f90 
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 "ui/app_list/app_list_constants.h"
8#include "ui/app_list/views/contents_view.h"
9#include "ui/views/controls/button/custom_button.h"
10#include "ui/views/controls/button/image_button.h"
11#include "ui/views/layout/box_layout.h"
12
13namespace app_list {
14
15namespace {
16
17const int kPreferredHeight = 32;
18const int kButtonSpacing = 4;
19
20}  // namespace
21
22ContentsSwitcherView::ContentsSwitcherView(ContentsView* contents_view)
23    : contents_view_(contents_view), buttons_(new views::View) {
24  AddChildView(buttons_);
25
26  buttons_->SetLayoutManager(new views::BoxLayout(
27      views::BoxLayout::kHorizontal, 0, 0, kButtonSpacing));
28}
29
30ContentsSwitcherView::~ContentsSwitcherView() {}
31
32void ContentsSwitcherView::AddSwitcherButton(int resource_id, int page_index) {
33  views::ImageButton* button = new views::ImageButton(this);
34  if (resource_id) {
35    button->SetImage(
36        views::CustomButton::STATE_NORMAL,
37        ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id));
38  }
39  button->set_tag(page_index);
40  buttons_->AddChildView(button);
41}
42
43gfx::Size ContentsSwitcherView::GetPreferredSize() const {
44  return gfx::Size(buttons_->GetPreferredSize().width(), kPreferredHeight);
45}
46
47void ContentsSwitcherView::Layout() {
48  gfx::Rect rect(GetContentsBounds());
49
50  // Makes |buttons_| horizontally center and vertically fill.
51  gfx::Size buttons_size(buttons_->GetPreferredSize());
52  gfx::Rect buttons_bounds(rect.CenterPoint().x() - buttons_size.width() / 2,
53                           rect.y(),
54                           buttons_size.width(),
55                           rect.height());
56  buttons_->SetBoundsRect(gfx::IntersectRects(rect, buttons_bounds));
57}
58
59void ContentsSwitcherView::ButtonPressed(views::Button* sender,
60                                         const ui::Event& event) {
61  contents_view_->SetActivePage(sender->tag());
62}
63
64}  // namespace app_list
65