ash/wm/custom_frame_view_ash.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/wm/custom_frame_view_ash.h"
   6
   7 #include "ash/wm/frame_painter.h"
   8 #include "ash/wm/workspace/frame_maximize_button.h"
   9 #include "grit/ash_resources.h"
  10 #include "grit/ui_strings.h"  // Accessibility names
  11 #include "ui/base/l10n/l10n_util.h"
  12 #include "ui/base/resource/resource_bundle.h"
  13 #include "ui/compositor/layer_animator.h"
  14 #include "ui/gfx/font.h"
  15 #include "ui/gfx/image/image.h"
  16 #include "ui/gfx/rect.h"
  17 #include "ui/gfx/size.h"
  18 #include "ui/views/controls/button/image_button.h"
  19 #include "ui/views/widget/native_widget_aura.h"
  20 #include "ui/views/widget/widget.h"
  21 #include "ui/views/widget/widget_delegate.h"
  22
  23 namespace {
  24
  25 const gfx::Font& GetTitleFont() {
  26   static gfx::Font* title_font = NULL;
  27   if (!title_font)
  28     title_font = new gfx::Font(views::NativeWidgetAura::GetWindowTitleFont());
  29   return *title_font;
  30 }
  31
  32 }  // namespace
  33
  34 namespace ash {
  35
  36 // static
  37 const char CustomFrameViewAsh::kViewClassName[] = "ash/wm/CustomFrameViewAsh";
  38
  39 ////////////////////////////////////////////////////////////////////////////////
  40 // CustomFrameViewAsh, public:
  41 CustomFrameViewAsh::CustomFrameViewAsh()
  42     : frame_(NULL),
  43       maximize_button_(NULL),
  44       close_button_(NULL),
  45       window_icon_(NULL),
  46       frame_painter_(new ash::FramePainter) {
  47 }
  48
  49 CustomFrameViewAsh::~CustomFrameViewAsh() {
  50 }
  51
  52 void CustomFrameViewAsh::Init(views::Widget* frame) {
  53   frame_ = frame;
  54
  55   maximize_button_ = new FrameMaximizeButton(this, this);
  56   maximize_button_->SetAccessibleName(
  57       l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MAXIMIZE));
  58   AddChildView(maximize_button_);
  59   close_button_ = new views::ImageButton(this);
  60   close_button_->SetAccessibleName(
  61       l10n_util::GetStringUTF16(IDS_APP_ACCNAME_CLOSE));
  62   AddChildView(close_button_);
  63
  64   maximize_button_->SetVisible(frame_->widget_delegate()->CanMaximize());
  65
  66   if (frame_->widget_delegate()->ShouldShowWindowIcon()) {
  67     window_icon_ = new views::ImageButton(this);
  68     AddChildView(window_icon_);
  69   }
  70
  71   frame_painter_->Init(frame_, window_icon_, maximize_button_, close_button_,
  72                        FramePainter::SIZE_BUTTON_MAXIMIZES);
  73 }
  74
  75 ////////////////////////////////////////////////////////////////////////////////
  76 // CustomFrameViewAsh, views::NonClientFrameView overrides:
  77 gfx::Rect CustomFrameViewAsh::GetBoundsForClientView() const {
  78   int top_height = NonClientTopBorderHeight();
  79   return frame_painter_->GetBoundsForClientView(top_height,
  80                                                 bounds());
  81 }
  82
  83 gfx::Rect CustomFrameViewAsh::GetWindowBoundsForClientBounds(
  84     const gfx::Rect& client_bounds) const {
  85   int top_height = NonClientTopBorderHeight();
  86   return frame_painter_->GetWindowBoundsForClientBounds(top_height,
  87                                                         client_bounds);
  88 }
  89
  90 int CustomFrameViewAsh::NonClientHitTest(const gfx::Point& point) {
  91   return frame_painter_->NonClientHitTest(this, point);
  92 }
  93
  94 void CustomFrameViewAsh::GetWindowMask(const gfx::Size& size,
  95                                        gfx::Path* window_mask) {
  96   // No window masks in Aura.
  97 }
  98
  99 void CustomFrameViewAsh::ResetWindowControls() {
 100   maximize_button_->SetState(views::CustomButton::STATE_NORMAL);
 101 }
 102
 103 void CustomFrameViewAsh::UpdateWindowIcon() {
 104   if (window_icon_)
 105     window_icon_->SchedulePaint();
 106 }
 107
 108 void CustomFrameViewAsh::UpdateWindowTitle() {
 109   frame_painter_->SchedulePaintForTitle(this, GetTitleFont());
 110 }
 111
 112 ////////////////////////////////////////////////////////////////////////////////
 113 // CustomFrameViewAsh, views::View overrides:
 114
 115 gfx::Size CustomFrameViewAsh::GetPreferredSize() {
 116   gfx::Size pref = frame_->client_view()->GetPreferredSize();
 117   gfx::Rect bounds(0, 0, pref.width(), pref.height());
 118   return frame_->non_client_view()->GetWindowBoundsForClientBounds(
 119       bounds).size();
 120 }
 121
 122 void CustomFrameViewAsh::Layout() {
 123   // Use the shorter maximized layout headers.
 124   frame_painter_->LayoutHeader(this, true);
 125 }
 126
 127 void CustomFrameViewAsh::OnPaint(gfx::Canvas* canvas) {
 128   if (frame_->IsFullscreen())
 129     return;
 130
 131   bool paint_as_active = ShouldPaintAsActive();
 132   int theme_image_id = paint_as_active ? IDR_AURA_WINDOW_HEADER_BASE_ACTIVE :
 133       IDR_AURA_WINDOW_HEADER_BASE_INACTIVE;
 134   frame_painter_->PaintHeader(
 135       this,
 136       canvas,
 137       paint_as_active ? FramePainter::ACTIVE : FramePainter::INACTIVE,
 138       theme_image_id,
 139       NULL);
 140   frame_painter_->PaintTitleBar(this, canvas, GetTitleFont());
 141   frame_painter_->PaintHeaderContentSeparator(this, canvas);
 142 }
 143
 144 std::string CustomFrameViewAsh::GetClassName() const {
 145   return kViewClassName;
 146 }
 147
 148 gfx::Size CustomFrameViewAsh::GetMinimumSize() {
 149   return frame_painter_->GetMinimumSize(this);
 150 }
 151
 152 ////////////////////////////////////////////////////////////////////////////////
 153 // views::ButtonListener overrides:
 154 void CustomFrameViewAsh::ButtonPressed(views::Button* sender,
 155                                        const ui::Event& event) {
 156   if (sender == maximize_button_) {
 157     // The maximize button may move out from under the cursor.
 158     ResetWindowControls();
 159     if (frame_->IsMaximized())
 160       frame_->Restore();
 161     else
 162       frame_->Maximize();
 163     // |this| may be deleted - some windows delete their frames on maximize.
 164   } else if (sender == close_button_) {
 165     frame_->Close();
 166   }
 167 }
 168
 169 ////////////////////////////////////////////////////////////////////////////////
 170 // CustomFrameViewAsh, private:
 171
 172 int CustomFrameViewAsh::NonClientTopBorderHeight() const {
 173   if (frame_->IsFullscreen())
 174     return 0;
 175
 176   // Reserve enough space to see the buttons, including any offset from top and
 177   // reserving space for the separator line.
 178   return close_button_->bounds().bottom() +
 179       frame_painter_->HeaderContentSeparatorSize();
 180 }
 181
 182 }  // namespace ash