ui/app_list/views/folder_header_view.cc

   1 // Copyright (c) 2013 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/folder_header_view.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "grit/ui_resources.h"
   9 #include "grit/ui_strings.h"
  10 #include "ui/app_list/app_list_constants.h"
  11 #include "ui/app_list/app_list_folder_item.h"
  12 #include "ui/app_list/views/app_list_folder_view.h"
  13 #include "ui/base/resource/resource_bundle.h"
  14 #include "ui/gfx/canvas.h"
  15 #include "ui/views/border.h"
  16 #include "ui/views/controls/button/image_button.h"
  17 #include "ui/views/controls/textfield/textfield.h"
  18 #include "ui/views/painter.h"
  19
  20 namespace app_list {
  21
  22 namespace {
  23
  24 const int kPreferredWidth = 360;
  25 const int kPreferredHeight = 48;
  26 const int kIconDimension = 24;
  27 const int kPadding = 14;
  28 const int kFolderNameWidth = 150;
  29 const int kFolderNameHeight = 30;
  30 const int kBottomSeparatorWidth = 380;
  31 const int kBottomSeparatorHeight = 1;
  32
  33 const SkColor kHintTextColor = SkColorSetRGB(0xA0, 0xA0, 0xA0);
  34
  35 }  // namespace
  36
  37 class FolderHeaderView::FolderNameView : public views::Textfield {
  38  public:
  39   FolderNameView() {
  40     SetBorder(views::Border::CreateEmptyBorder(1, 1, 1, 1));
  41     const SkColor kFocusBorderColor = SkColorSetRGB(64, 128, 250);
  42     SetFocusPainter(views::Painter::CreateSolidFocusPainter(
  43           kFocusBorderColor,
  44           gfx::Insets(0, 0, 1, 1)));
  45   }
  46
  47   virtual ~FolderNameView() {
  48   }
  49
  50   // Overridden from views::View:
  51   virtual gfx::Size GetPreferredSize() OVERRIDE {
  52     return gfx::Size(kFolderNameWidth, kFolderNameHeight);
  53   }
  54
  55  private:
  56   DISALLOW_COPY_AND_ASSIGN(FolderNameView);
  57 };
  58
  59 FolderHeaderView::FolderHeaderView(FolderHeaderViewDelegate* delegate)
  60     : folder_item_(NULL),
  61       back_button_(new views::ImageButton(this)),
  62       folder_name_view_(new FolderNameView),
  63       delegate_(delegate) {
  64   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  65   back_button_->SetImage(views::ImageButton::STATE_NORMAL,
  66       rb.GetImageSkiaNamed(IDR_APP_LIST_FOLDER_BACK_NORMAL));
  67   back_button_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
  68       views::ImageButton::ALIGN_MIDDLE);
  69   AddChildView(back_button_);
  70
  71   folder_name_view_->SetFontList(
  72       rb.GetFontList(ui::ResourceBundle::MediumFont));
  73   folder_name_view_->set_placeholder_text_color(kHintTextColor);
  74   folder_name_view_->set_placeholder_text(
  75       rb.GetLocalizedString(IDS_APP_LIST_FOLDER_NAME_PLACEHOLDER));
  76   folder_name_view_->SetBorder(views::Border::NullBorder());
  77   folder_name_view_->SetBackgroundColor(kContentsBackgroundColor);
  78   folder_name_view_->set_controller(this);
  79   AddChildView(folder_name_view_);
  80 }
  81
  82 FolderHeaderView::~FolderHeaderView() {
  83   if (folder_item_)
  84     folder_item_->RemoveObserver(this);
  85 }
  86
  87 void FolderHeaderView::SetFolderItem(AppListFolderItem* folder_item) {
  88   if (folder_item_)
  89     folder_item_->RemoveObserver(this);
  90
  91   folder_item_ = folder_item;
  92   if (!folder_item_)
  93     return;
  94   folder_item_->AddObserver(this);
  95
  96   Update();
  97 }
  98
  99 void FolderHeaderView::Update() {
 100   if (!folder_item_)
 101     return;
 102
 103   folder_name_view_->SetText(base::UTF8ToUTF16(folder_item_->title()));
 104 }
 105
 106 gfx::Size FolderHeaderView::GetPreferredSize() {
 107   return gfx::Size(kPreferredWidth, kPreferredHeight);
 108 }
 109
 110 void FolderHeaderView::Layout() {
 111   gfx::Rect rect(GetContentsBounds());
 112   if (rect.IsEmpty())
 113     return;
 114
 115   gfx::Rect back_bounds(rect);
 116   back_bounds.set_width(kIconDimension + 2 * kPadding);
 117   back_button_->SetBoundsRect(back_bounds);
 118
 119   gfx::Rect text_bounds(rect);
 120   int text_width = folder_name_view_->GetPreferredSize().width();
 121   text_bounds.set_x(back_bounds.x() + (rect.width() - text_width) / 2);
 122   text_bounds.set_width(text_width);
 123   text_bounds.ClampToCenteredSize(gfx::Size(text_bounds.width(),
 124       folder_name_view_->GetPreferredSize().height()));
 125   folder_name_view_->SetBoundsRect(text_bounds);
 126 }
 127
 128 void FolderHeaderView::OnPaint(gfx::Canvas* canvas) {
 129   views::View::OnPaint(canvas);
 130
 131   gfx::Rect rect(GetContentsBounds());
 132   if (rect.IsEmpty())
 133     return;
 134
 135   // Draw bottom separator line.
 136   rect.set_x((rect.width() - kBottomSeparatorWidth) / 2 + rect.x());
 137   rect.set_y(rect.y() + rect.height() - kBottomSeparatorHeight);
 138   rect.set_width(kBottomSeparatorWidth);
 139   rect.set_height(kBottomSeparatorHeight);
 140   canvas->FillRect(rect, kTopSeparatorColor);
 141 }
 142
 143 void FolderHeaderView::ContentsChanged(views::Textfield* sender,
 144                                        const base::string16& new_contents) {
 145   // Temporarily remove from observer to ignore data change caused by us.
 146   if (!folder_item_)
 147     return;
 148
 149   folder_item_->RemoveObserver(this);
 150   std::string name = base::UTF16ToUTF8(folder_name_view_->text());
 151   folder_item_->SetTitleAndFullName(name, name);
 152   folder_item_->AddObserver(this);
 153 }
 154
 155 void FolderHeaderView::ButtonPressed(views::Button* sender,
 156                                      const ui::Event& event) {
 157   delegate_->NavigateBack(folder_item_, event);
 158 }
 159
 160 void FolderHeaderView::ItemIconChanged() {
 161 }
 162
 163 void FolderHeaderView::ItemTitleChanged() {
 164   Update();
 165 }
 166
 167 void FolderHeaderView::ItemHighlightedChanged() {
 168 }
 169
 170 void FolderHeaderView::ItemIsInstallingChanged() {
 171 }
 172
 173 void FolderHeaderView::ItemPercentDownloadedChanged() {
 174 }
 175
 176 }  // namespace app_list
 177