GTK: HTTP Auth dialogs under linux.

chrome/browser/views/constrained_window_win.cc

+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/views/constrained_window_win.h"
+
+#include "app/gfx/canvas.h"
+#include "app/gfx/font.h"
+#include "app/gfx/path.h"
+#include "app/gfx/text_elider.h"
+#include "app/l10n_util.h"
+#include "app/resource_bundle.h"
+#include "app/win_util.h"
+#include "base/gfx/rect.h"
+#include "chrome/app/chrome_dll_resource.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/profile.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
+#include "chrome/browser/tab_contents/tab_contents_view.h"
+#include "chrome/browser/toolbar_model.h"
+#include "chrome/browser/views/frame/browser_view.h"
+#include "chrome/browser/window_sizer.h"
+#include "chrome/common/chrome_constants.h"
+#include "chrome/common/notification_service.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/common/pref_service.h"
+#include "grit/app_resources.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "grit/theme_resources.h"
+#include "net/base/net_util.h"
+#include "views/controls/button/image_button.h"
+#include "views/focus/focus_manager.h"
+#include "views/window/client_view.h"
+#include "views/window/non_client_view.h"
+#include "views/window/window_resources.h"
+
+using base::TimeDelta;
+
+namespace views {
+class ClientView;
+}
+
+// An enumeration of bitmap resources used by this window.
+enum {
+  FRAME_PART_BITMAP_FIRST = 0,  // Must be first.
+
+  // Window Controls.
+  FRAME_CLOSE_BUTTON_ICON,
+  FRAME_CLOSE_BUTTON_ICON_H,
+  FRAME_CLOSE_BUTTON_ICON_P,
+
+  // Window Frame Border.
+  FRAME_BOTTOM_EDGE,
+  FRAME_BOTTOM_LEFT_CORNER,
+  FRAME_BOTTOM_RIGHT_CORNER,
+  FRAME_LEFT_EDGE,
+  FRAME_RIGHT_EDGE,
+  FRAME_TOP_EDGE,
+  FRAME_TOP_LEFT_CORNER,
+  FRAME_TOP_RIGHT_CORNER,
+
+  FRAME_WINDOW,
+  FRAME_WINDOW_INACTIVE,
+  FRAME_WINDOW_INCOGNITO,
+  FRAME_WINDOW_INCOGNITO_INACTIVE,
+
+  FRAME_PART_BITMAP_COUNT  // Must be last.
+};
+
+static const int kXPFramePartIDs[] = {
+    0,
+    IDR_CLOSE_SA, IDR_CLOSE_SA_H, IDR_CLOSE_SA_P,
+    IDR_WINDOW_BOTTOM_CENTER, IDR_WINDOW_BOTTOM_LEFT_CORNER,
+    IDR_WINDOW_BOTTOM_RIGHT_CORNER, IDR_WINDOW_LEFT_SIDE,
+    IDR_WINDOW_RIGHT_SIDE, IDR_WINDOW_TOP_CENTER,
+    IDR_WINDOW_TOP_LEFT_CORNER, IDR_WINDOW_TOP_RIGHT_CORNER,
+    IDR_THEME_FRAME, IDR_THEME_FRAME_INACTIVE, IDR_THEME_FRAME_INCOGNITO,
+    IDR_THEME_FRAME_INCOGNITO_INACTIVE,
+    0 };
+static const int kVistaFramePartIDs[] = {
+    0,
+    IDR_CLOSE_SA, IDR_CLOSE_SA_H, IDR_CLOSE_SA_P,
+    IDR_CONSTRAINED_BOTTOM_CENTER_V, IDR_CONSTRAINED_BOTTOM_LEFT_CORNER_V,
+    IDR_CONSTRAINED_BOTTOM_RIGHT_CORNER_V, IDR_CONSTRAINED_LEFT_SIDE_V,
+    IDR_CONSTRAINED_RIGHT_SIDE_V, IDR_CONSTRAINED_TOP_CENTER_V,
+    IDR_CONSTRAINED_TOP_LEFT_CORNER_V, IDR_CONSTRAINED_TOP_RIGHT_CORNER_V,
+    IDR_THEME_FRAME, IDR_THEME_FRAME_INACTIVE, IDR_THEME_FRAME_INCOGNITO,
+    IDR_THEME_FRAME_INCOGNITO_INACTIVE,
+    0 };
+
+class XPWindowResources : public views::WindowResources {
+ public:
+  XPWindowResources() {
+    InitClass();
+  }
+  virtual ~XPWindowResources() {}
+
+  virtual SkBitmap* GetPartBitmap(views::FramePartBitmap part_id) const {
+    return bitmaps_[part_id];
+  }
+
+ private:
+  static void InitClass() {
+    static bool initialized = false;
+    if (!initialized) {
+      ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+      for (int i = 0; i < FRAME_PART_BITMAP_COUNT; ++i) {
+        int id = kXPFramePartIDs[i];
+        if (id != 0)
+          bitmaps_[i] = rb.GetBitmapNamed(id);
+      }
+      initialized = true;
+    }
+  }
+
+  static SkBitmap* bitmaps_[FRAME_PART_BITMAP_COUNT];
+
+  DISALLOW_EVIL_CONSTRUCTORS(XPWindowResources);
+};
+
+class VistaWindowResources : public views::WindowResources {
+ public:
+  VistaWindowResources() {
+    InitClass();
+  }
+  virtual ~VistaWindowResources() {}
+
+  virtual SkBitmap* GetPartBitmap(views::FramePartBitmap part_id) const {
+    return bitmaps_[part_id];
+  }
+
+ private:
+  static void InitClass() {
+    static bool initialized = false;
+    if (!initialized) {
+      ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+      for (int i = 0; i < FRAME_PART_BITMAP_COUNT; ++i) {
+        int id = kVistaFramePartIDs[i];
+        if (id != 0)
+          bitmaps_[i] = rb.GetBitmapNamed(id);
+      }
+      initialized = true;
+    }
+  }
+
+  static SkBitmap* bitmaps_[FRAME_PART_BITMAP_COUNT];
+
+  DISALLOW_EVIL_CONSTRUCTORS(VistaWindowResources);
+};
+
+SkBitmap* XPWindowResources::bitmaps_[];
+SkBitmap* VistaWindowResources::bitmaps_[];
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowFrameView
+
+class ConstrainedWindowFrameView
+    : public views::NonClientFrameView,
+      public views::ButtonListener {
+ public:
+  explicit ConstrainedWindowFrameView(ConstrainedWindowWin* container);
+  virtual ~ConstrainedWindowFrameView();
+
+  void UpdateWindowTitle();
+
+  // Overridden from views::NonClientFrameView:
+  virtual gfx::Rect GetBoundsForClientView() const;
+  virtual bool AlwaysUseCustomFrame() const;
+  virtual gfx::Rect GetWindowBoundsForClientBounds(
+      const gfx::Rect& client_bounds) const;
+  virtual gfx::Point GetSystemMenuPoint() const;
+  virtual int NonClientHitTest(const gfx::Point& point);
+  virtual void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask);
+  virtual void EnableClose(bool enable);
+  virtual void ResetWindowControls() { }
+
+  // Overridden from views::View:
+  virtual void Paint(gfx::Canvas* canvas);
+  virtual void Layout();
+  virtual void ThemeChanged();
+
+  // Overridden from views::ButtonListener:
+  virtual void ButtonPressed(views::Button* sender);
+
+ private:
+  // Returns the thickness of the border that makes up the window frame edges.
+  // This does not include any client edge.
+  int FrameBorderThickness() const;
+
+  // Returns the thickness of the entire nonclient left, right, and bottom
+  // borders, including both the window frame and any client edge.
+  int NonClientBorderThickness() const;
+
+  // Returns the height of the entire nonclient top border, including the window
+  // frame, any title area, and any connected client edge.
+  int NonClientTopBorderHeight() const;
+
+  // Calculates multiple values related to title layout.  Returns the height of
+  // the entire titlebar including any connected client edge.
+  int TitleCoordinates(int* title_top_spacing,
+                       int* title_thickness) const;
+
+  // Paints different parts of the window to the incoming canvas.
+  void PaintFrameBorder(gfx::Canvas* canvas);
+  void PaintTitleBar(gfx::Canvas* canvas);
+  void PaintClientEdge(gfx::Canvas* canvas);
+
+  // Layout various sub-components of this view.
+  void LayoutWindowControls();
+  void LayoutTitleBar();
+  void LayoutClientView();
+
+  // Returns the bounds of the client area for the specified view size.
+  gfx::Rect CalculateClientAreaBounds(int width, int height) const;
+
+  SkColor GetTitleColor() const {
+    return (container_->owner()->profile()->IsOffTheRecord() ||
+        !win_util::ShouldUseVistaFrame()) ? SK_ColorWHITE : SK_ColorBLACK;
+  }
+
+  // Loads the appropriate set of WindowResources for the frame view.
+  void InitWindowResources();
+
+  ConstrainedWindowWin* container_;
+
+  scoped_ptr<views::WindowResources> resources_;
+
+  gfx::Rect title_bounds_;
+
+  views::ImageButton* close_button_;
+
+  // The bounds of the ClientView.
+  gfx::Rect client_view_bounds_;
+
+  static void InitClass();
+
+  // The font to be used to render the titlebar text.
+  static gfx::Font* title_font_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(ConstrainedWindowFrameView);
+};
+
+gfx::Font* ConstrainedWindowFrameView::title_font_ = NULL;
+
+namespace {
+// The frame border is only visible in restored mode and is hardcoded to 4 px on
+// each side regardless of the system window border size.
+const int kFrameBorderThickness = 4;
+// Various edges of the frame border have a 1 px shadow along their edges; in a
+// few cases we shift elements based on this amount for visual appeal.
+const int kFrameShadowThickness = 1;
+// In the window corners, the resize areas don't actually expand bigger, but the
+// 16 px at the end of each edge triggers diagonal resizing.
+const int kResizeAreaCornerSize = 16;
+// The titlebar never shrinks to less than 20 px tall, including the height of
+// the frame border and client edge.
+const int kTitlebarMinimumHeight = 20;
+// The icon is inset 2 px from the left frame border.
+const int kIconLeftSpacing = 2;
+// The title text starts 2 px below the bottom of the top frame border.
+const int kTitleTopSpacing = 2;
+// There is a 5 px gap between the title text and the caption buttons.
+const int kTitleCaptionSpacing = 5;
+// The caption buttons are always drawn 1 px down from the visible top of the
+// window (the true top in restored mode, or the top of the screen in maximized
+// mode).
+const int kCaptionTopSpacing = 1;
+
+const SkColor kContentsBorderShadow = SkColorSetARGB(51, 0, 0, 0);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowFrameView, public:
+
+ConstrainedWindowFrameView::ConstrainedWindowFrameView(
+    ConstrainedWindowWin* container)
+        : NonClientFrameView(),
+          container_(container),
+          close_button_(new views::ImageButton(this)) {
+  InitClass();
+  InitWindowResources();
+
+  close_button_->SetImage(views::CustomButton::BS_NORMAL,
+      resources_->GetPartBitmap(FRAME_CLOSE_BUTTON_ICON));
+  close_button_->SetImage(views::CustomButton::BS_HOT,
+      resources_->GetPartBitmap(FRAME_CLOSE_BUTTON_ICON_H));
+  close_button_->SetImage(views::CustomButton::BS_PUSHED,
+      resources_->GetPartBitmap(FRAME_CLOSE_BUTTON_ICON_P));
+  close_button_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
+                                   views::ImageButton::ALIGN_MIDDLE);
+  AddChildView(close_button_);
+}
+
+ConstrainedWindowFrameView::~ConstrainedWindowFrameView() {
+}
+
+void ConstrainedWindowFrameView::UpdateWindowTitle() {
+  SchedulePaint(title_bounds_, false);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowFrameView, views::NonClientFrameView implementation:
+
+gfx::Rect ConstrainedWindowFrameView::GetBoundsForClientView() const {
+  return client_view_bounds_;
+}
+
+bool ConstrainedWindowFrameView::AlwaysUseCustomFrame() const {
+  // Constrained windows always use the custom frame - they just have a
+  // different set of bitmaps.
+  return true;
+}
+
+gfx::Rect ConstrainedWindowFrameView::GetWindowBoundsForClientBounds(
+    const gfx::Rect& client_bounds) const {
+  int top_height = NonClientTopBorderHeight();
+  int border_thickness = NonClientBorderThickness();
+  return gfx::Rect(std::max(0, client_bounds.x() - border_thickness),
+                   std::max(0, client_bounds.y() - top_height),
+                   client_bounds.width() + (2 * border_thickness),
+                   client_bounds.height() + top_height + border_thickness);
+}
+
+gfx::Point ConstrainedWindowFrameView::GetSystemMenuPoint() const {
+  // Doesn't really matter, since we never show system menus on constrained
+  // windows...
+  gfx::Point system_menu_point(FrameBorderThickness(),
+                               NonClientTopBorderHeight());
+  ConvertPointToScreen(this, &system_menu_point);
+  return system_menu_point;
+}
+
+int ConstrainedWindowFrameView::NonClientHitTest(const gfx::Point& point) {
+  if (!bounds().Contains(point))
+    return HTNOWHERE;
+
+  int frame_component = container_->GetClientView()->NonClientHitTest(point);
+  if (frame_component != HTNOWHERE)
+    return frame_component;
+
+  // Then see if the point is within any of the window controls.
+  if (close_button_->GetBounds(APPLY_MIRRORING_TRANSFORMATION).Contains(point))
+    return HTCLOSE;
+
+  int window_component = GetHTComponentForFrame(point, FrameBorderThickness(),
+      NonClientBorderThickness(), kResizeAreaCornerSize, kResizeAreaCornerSize,
+      container_->GetDelegate()->CanResize());
+  // Fall back to the caption if no other component matches.
+  return (window_component == HTNOWHERE) ? HTCAPTION : window_component;
+}
+
+void ConstrainedWindowFrameView::GetWindowMask(const gfx::Size& size,
+                                               gfx::Path* window_mask) {
+  DCHECK(window_mask);
+
+  // Redefine the window visible region for the new size.
+  window_mask->moveTo(0, 3);
+  window_mask->lineTo(1, 2);
+  window_mask->lineTo(1, 1);
+  window_mask->lineTo(2, 1);
+  window_mask->lineTo(3, 0);
+
+  window_mask->lineTo(SkIntToScalar(size.width() - 3), 0);
+  window_mask->lineTo(SkIntToScalar(size.width() - 2), 1);
+  window_mask->lineTo(SkIntToScalar(size.width() - 1), 1);
+  window_mask->lineTo(SkIntToScalar(size.width() - 1), 2);
+  window_mask->lineTo(SkIntToScalar(size.width()), 3);
+
+  window_mask->lineTo(SkIntToScalar(size.width()),
+                      SkIntToScalar(size.height()));
+  window_mask->lineTo(0, SkIntToScalar(size.height()));
+  window_mask->close();
+}
+
+void ConstrainedWindowFrameView::EnableClose(bool enable) {
+  close_button_->SetEnabled(enable);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowFrameView, views::View implementation:
+
+void ConstrainedWindowFrameView::Paint(gfx::Canvas* canvas) {
+  PaintFrameBorder(canvas);
+  PaintTitleBar(canvas);
+  PaintClientEdge(canvas);
+}
+
+void ConstrainedWindowFrameView::Layout() {
+  LayoutWindowControls();
+  LayoutTitleBar();
+  LayoutClientView();
+}
+
+void ConstrainedWindowFrameView::ThemeChanged() {
+  InitWindowResources();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowFrameView, views::ButtonListener implementation:
+
+void ConstrainedWindowFrameView::ButtonPressed(views::Button* sender) {
+  if (sender == close_button_)
+    container_->ExecuteSystemMenuCommand(SC_CLOSE);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowFrameView, private:
+
+int ConstrainedWindowFrameView::FrameBorderThickness() const {
+  return kFrameBorderThickness;
+}
+
+int ConstrainedWindowFrameView::NonClientBorderThickness() const {
+  return FrameBorderThickness() + kClientEdgeThickness;
+}
+
+int ConstrainedWindowFrameView::NonClientTopBorderHeight() const {
+  int title_top_spacing, title_thickness;
+  return TitleCoordinates(&title_top_spacing, &title_thickness);
+}
+
+int ConstrainedWindowFrameView::TitleCoordinates(
+    int* title_top_spacing,
+    int* title_thickness) const {
+  int frame_thickness = FrameBorderThickness();
+  int min_titlebar_height = kTitlebarMinimumHeight + frame_thickness;
+  *title_top_spacing = frame_thickness + kTitleTopSpacing;
+  // The bottom spacing should be the same apparent height as the top spacing,
+  // plus have the client edge tacked on.
+  int title_bottom_spacing = *title_top_spacing + kClientEdgeThickness;
+  *title_thickness = std::max(title_font_->height(),
+      min_titlebar_height - *title_top_spacing - title_bottom_spacing);
+  return *title_top_spacing + *title_thickness + title_bottom_spacing;
+}
+
+void ConstrainedWindowFrameView::PaintFrameBorder(gfx::Canvas* canvas) {
+  SkBitmap* top_left_corner = resources_->GetPartBitmap(FRAME_TOP_LEFT_CORNER);
+  SkBitmap* top_right_corner =
+      resources_->GetPartBitmap(FRAME_TOP_RIGHT_CORNER);
+  SkBitmap* top_edge = resources_->GetPartBitmap(FRAME_TOP_EDGE);
+  SkBitmap* right_edge = resources_->GetPartBitmap(FRAME_RIGHT_EDGE);
+  SkBitmap* left_edge = resources_->GetPartBitmap(FRAME_LEFT_EDGE);
+  SkBitmap* bottom_left_corner =
+      resources_->GetPartBitmap(FRAME_BOTTOM_LEFT_CORNER);
+  SkBitmap* bottom_right_corner =
+      resources_->GetPartBitmap(FRAME_BOTTOM_RIGHT_CORNER);
+  SkBitmap* bottom_edge = resources_->GetPartBitmap(FRAME_BOTTOM_EDGE);
+
+  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
+  SkBitmap* theme_frame = rb.GetBitmapNamed(IDR_THEME_FRAME);
+  SkColor frame_color = ResourceBundle::frame_color;
+
+  // Fill with the frame color first so we have a constant background for
+  // areas not covered by the theme image.
+  canvas->FillRectInt(frame_color, 0, 0, width(), theme_frame->height());
+  // Now fill down the sides
+  canvas->FillRectInt(frame_color,
+      0, theme_frame->height(),
+      left_edge->width(), height() - theme_frame->height());
+  canvas->FillRectInt(frame_color,
+      width() - right_edge->width(), theme_frame->height(),
+      right_edge->width(), height() - theme_frame->height());
+  // Now fill the bottom area.
+  canvas->FillRectInt(frame_color,
+      left_edge->width(), height() - bottom_edge->height(),
+      width() - left_edge->width() - right_edge->width(),
+      bottom_edge->height());
+
+  // Draw the theme frame.
+  canvas->TileImageInt(*theme_frame, 0, 0, width(), theme_frame->height());
+
+  // Top.
+  canvas->DrawBitmapInt(*top_left_corner, 0, 0);
+  canvas->TileImageInt(*top_edge, top_left_corner->width(), 0,
+                       width() - top_right_corner->width(), top_edge->height());
+  canvas->DrawBitmapInt(*top_right_corner,
+                        width() - top_right_corner->width(), 0);
+
+  // Right.
+  canvas->TileImageInt(*right_edge, width() - right_edge->width(),
+                       top_right_corner->height(), right_edge->width(),
+                       height() - top_right_corner->height() -
+                           bottom_right_corner->height());
+
+  // Bottom.
+  canvas->DrawBitmapInt(*bottom_right_corner,
+                        width() - bottom_right_corner->width(),
+                        height() - bottom_right_corner->height());
+  canvas->TileImageInt(*bottom_edge, bottom_left_corner->width(),
+                       height() - bottom_edge->height(),
+                       width() - bottom_left_corner->width() -
+                           bottom_right_corner->width(),
+                       bottom_edge->height());
+  canvas->DrawBitmapInt(*bottom_left_corner, 0,
+                        height() - bottom_left_corner->height());
+
+  // Left.
+  canvas->TileImageInt(*left_edge, 0, top_left_corner->height(),
+      left_edge->width(),
+      height() - top_left_corner->height() - bottom_left_corner->height());
+}
+
+void ConstrainedWindowFrameView::PaintTitleBar(gfx::Canvas* canvas) {
+  canvas->DrawStringInt(container_->GetWindowTitle(), *title_font_,
+      GetTitleColor(), MirroredLeftPointForRect(title_bounds_),
+      title_bounds_.y(), title_bounds_.width(), title_bounds_.height());
+}
+
+void ConstrainedWindowFrameView::PaintClientEdge(gfx::Canvas* canvas) {
+  gfx::Rect client_edge_bounds(CalculateClientAreaBounds(width(), height()));
+  client_edge_bounds.Inset(-kClientEdgeThickness, -kClientEdgeThickness);
+  gfx::Rect frame_shadow_bounds(client_edge_bounds);
+  frame_shadow_bounds.Inset(-kFrameShadowThickness, -kFrameShadowThickness);
+
+  canvas->FillRectInt(kContentsBorderShadow, frame_shadow_bounds.x(),
+                      frame_shadow_bounds.y(), frame_shadow_bounds.width(),
+                      frame_shadow_bounds.height());
+
+  canvas->FillRectInt(ResourceBundle::toolbar_color, client_edge_bounds.x(),
+                      client_edge_bounds.y(), client_edge_bounds.width(),
+                      client_edge_bounds.height());
+}
+
+void ConstrainedWindowFrameView::LayoutWindowControls() {
+  gfx::Size close_button_size = close_button_->GetPreferredSize();
+  close_button_->SetBounds(
+      width() - close_button_size.width() - FrameBorderThickness(),
+      kCaptionTopSpacing, close_button_size.width(),
+      close_button_size.height());
+}
+
+void ConstrainedWindowFrameView::LayoutTitleBar() {
+  // Size the title.
+  int title_x = FrameBorderThickness() + kIconLeftSpacing;
+  int title_top_spacing, title_thickness;
+  TitleCoordinates(&title_top_spacing, &title_thickness);
+  title_bounds_.SetRect(title_x,
+      title_top_spacing + ((title_thickness - title_font_->height()) / 2),
+      std::max(0, close_button_->x() - kTitleCaptionSpacing - title_x),
+      title_font_->height());
+}
+
+void ConstrainedWindowFrameView::LayoutClientView() {
+  client_view_bounds_ = CalculateClientAreaBounds(width(), height());
+}
+
+gfx::Rect ConstrainedWindowFrameView::CalculateClientAreaBounds(
+    int width,
+    int height) const {
+  int top_height = NonClientTopBorderHeight();
+  int border_thickness = NonClientBorderThickness();
+  return gfx::Rect(border_thickness, top_height,
+                   std::max(0, width - (2 * border_thickness)),
+                   std::max(0, height - top_height - border_thickness));
+}
+
+void ConstrainedWindowFrameView::InitWindowResources() {
+  if (win_util::ShouldUseVistaFrame()) {
+    resources_.reset(new VistaWindowResources);
+  } else {
+    resources_.reset(new XPWindowResources);
+  }
+}
+
+// static
+void ConstrainedWindowFrameView::InitClass() {
+  static bool initialized = false;
+  if (!initialized) {
+    title_font_ = new gfx::Font(win_util::GetWindowTitleFont());
+
+    initialized = true;
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowWin, public:
+
+// The space (in pixels) between minimized pop-ups stacked horizontally and
+// vertically.
+static const int kPopupRepositionOffset = 5;
+static const int kConstrainedWindowEdgePadding = 10;
+
+ConstrainedWindowWin::~ConstrainedWindowWin() {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowWin, ConstrainedWindow implementation:
+
+views::NonClientFrameView* ConstrainedWindowWin::CreateFrameViewForWindow() {
+  return new ConstrainedWindowFrameView(this);
+}
+
+void ConstrainedWindowWin::CloseConstrainedWindow() {
+  // Broadcast to all observers of NOTIFY_CWINDOW_CLOSED.
+  // One example of such an observer is AutomationCWindowTracker in the
+  // automation component.
+  NotificationService::current()->Notify(NotificationType::CWINDOW_CLOSED,
+                                         Source<ConstrainedWindow>(this),
+                                         NotificationService::NoDetails());
+
+  Close();
+}
+
+std::wstring ConstrainedWindowWin::GetWindowTitle() const {
+  std::wstring display_title;
+  if (GetDelegate())
+    display_title = GetDelegate()->GetWindowTitle();
+  else
+    display_title = L"Untitled";
+
+  return display_title;
+}
+
+const gfx::Rect& ConstrainedWindowWin::GetCurrentBounds() const {
+  return current_bounds_;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowWin, private:
+
+ConstrainedWindowWin::ConstrainedWindowWin(
+    TabContents* owner,
+    views::WindowDelegate* window_delegate)
+    : WindowWin(window_delegate),
+      owner_(owner) {
+  GetNonClientView()->SetFrameView(CreateFrameViewForWindow());
+
+  focus_restoration_disabled_ = false;
+  set_window_style(WS_CHILD | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_CAPTION |
+                   WS_THICKFRAME | WS_SYSMENU);
+  set_focus_on_creation(false);
+
+  WindowWin::Init(owner_->GetNativeView(), gfx::Rect());
+  ActivateConstrainedWindow();
+}
+
+void ConstrainedWindowWin::ActivateConstrainedWindow() {
+  // Other pop-ups are simply moved to the front of the z-order.
+  SetWindowPos(HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
+
+  // Store the focus of our parent focus manager so we can restore it when we
+  // close.
+  views::FocusManager* focus_manager =
+      views::FocusManager::GetFocusManager(GetNativeView());
+  DCHECK(focus_manager);
+  focus_manager = focus_manager->GetParentFocusManager();
+  if (focus_manager) {
+    // We could not have a parent focus manager if the ConstrainedWindow is
+    // displayed in a tab that is not currently selected.
+    // TODO(jcampan): we should store the ConstrainedWindow active events in
+    // that case and replay them when the TabContents becomes selected.
+    focus_manager->StoreFocusedView();
+
+    // Give our window the focus so we get keyboard messages.
+    ::SetFocus(GetNativeView());
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ConstrainedWindowWin, views::WidgetWin overrides:
+
+void ConstrainedWindowWin::OnDestroy() {
+  // We do this here, rather than |Close|, since the window may be destroyed in
+  // a way other than by some other component calling Close, e.g. by the native
+  // window hierarchy closing. We are guaranteed to receive a WM_DESTROY
+  // message regardless of how the window is closed.
+  // Note that when we get this message, the focus manager of the
+  // ConstrainedWindow has already been destroyed (by the processing of
+  // WM_DESTROY in FocusManager).  So the FocusManager we retrieve here is the
+  // parent one (the one from the top window).
+  views::FocusManager* focus_manager =
+      views::FocusManager::GetFocusManager(GetNativeView());
+  if (focus_manager) {
+    // We may not have a focus manager if:
+    // - we are hidden when closed (the TabContent would be detached).
+    // - the tab has been closed and we are closed as a result.
+    // TODO(jcampan): when hidden, we should modify the stored focus of the tab
+    // so when it becomes visible again we retrieve the focus appropriately.
+    if (!focus_restoration_disabled_)
+      focus_manager->RestoreFocusedView();
+  }
+
+  // Make sure we call super so that it can do its cleanup.
+  WindowWin::OnDestroy();
+}
+
+void ConstrainedWindowWin::OnFinalMessage(HWND window) {
+  // Tell our constraining TabContents that we've gone so it can update its
+  // list.
+  owner_->WillClose(this);
+
+  WindowWin::OnFinalMessage(window);
+}
+
+LRESULT ConstrainedWindowWin::OnMouseActivate(HWND window,
+                                               UINT hittest_code,
+                                               UINT message) {
+  // We only detach the window if the user clicked on the title bar. That
+  // way, users can click inside the contents of legitimate popups obtained
+  // with a mouse gesture.
+  if (hittest_code != HTCLIENT && hittest_code != HTNOWHERE &&
+      hittest_code != HTCLOSE) {
+    ActivateConstrainedWindow();
+  }
+
+  return MA_ACTIVATE;
+}
+
+void ConstrainedWindowWin::OnWindowPosChanged(WINDOWPOS* window_pos) {
+  // If the window was moved or sized, tell the owner.
+  if (!(window_pos->flags & SWP_NOMOVE) || !(window_pos->flags & SWP_NOSIZE))
+    owner_->DidMoveOrResize(this);
+  SetMsgHandled(FALSE);
+}
+
+
+// static
+ConstrainedWindow* ConstrainedWindow::CreateConstrainedDialog(
+    TabContents* parent,
+    views::WindowDelegate* window_delegate) {
+  ConstrainedWindowWin* window = new ConstrainedWindowWin(parent,
+                                                          window_delegate);
+  return window;
+}