It is time.

ui/views/bubble/bubble_delegate.cc

-// Copyright (c) 2012 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 "ui/views/bubble/bubble_delegate.h"
-
-#include "ui/accessibility/ax_view_state.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/color_utils.h"
-#include "ui/gfx/rect.h"
-#include "ui/native_theme/native_theme.h"
-#include "ui/views/bubble/bubble_frame_view.h"
-#include "ui/views/focus/view_storage.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/widget/widget_observer.h"
-
-#if defined(OS_WIN)
-#include "ui/base/win/shell.h"
-#endif
-
-// The defaut margin between the content and the inside border, in pixels.
-static const int kDefaultMargin = 6;
-
-namespace views {
-
-namespace {
-
-// Create a widget to host the bubble.
-Widget* CreateBubbleWidget(BubbleDelegateView* bubble) {
-  Widget* bubble_widget = new Widget();
-  Widget::InitParams bubble_params(Widget::InitParams::TYPE_BUBBLE);
-  bubble_params.delegate = bubble;
-  bubble_params.opacity = Widget::InitParams::TRANSLUCENT_WINDOW;
-  bubble_params.accept_events = bubble->accept_events();
-  if (bubble->parent_window())
-    bubble_params.parent = bubble->parent_window();
-  else if (bubble->anchor_widget())
-    bubble_params.parent = bubble->anchor_widget()->GetNativeView();
-  bubble_params.activatable = bubble->CanActivate() ?
-      Widget::InitParams::ACTIVATABLE_YES : Widget::InitParams::ACTIVATABLE_NO;
-  bubble->OnBeforeBubbleWidgetInit(&bubble_params, bubble_widget);
-  bubble_widget->Init(bubble_params);
-  return bubble_widget;
-}
-
-}  // namespace
-
-BubbleDelegateView::BubbleDelegateView()
-    : close_on_esc_(true),
-      close_on_deactivate_(true),
-      anchor_view_storage_id_(ViewStorage::GetInstance()->CreateStorageID()),
-      anchor_widget_(NULL),
-      arrow_(BubbleBorder::TOP_LEFT),
-      shadow_(BubbleBorder::SMALL_SHADOW),
-      color_explicitly_set_(false),
-      margins_(kDefaultMargin, kDefaultMargin, kDefaultMargin, kDefaultMargin),
-      accept_events_(true),
-      border_accepts_events_(true),
-      adjust_if_offscreen_(true),
-      parent_window_(NULL) {
-  AddAccelerator(ui::Accelerator(ui::VKEY_ESCAPE, ui::EF_NONE));
-  UpdateColorsFromTheme(GetNativeTheme());
-}
-
-BubbleDelegateView::BubbleDelegateView(
-    View* anchor_view,
-    BubbleBorder::Arrow arrow)
-    : close_on_esc_(true),
-      close_on_deactivate_(true),
-      anchor_view_storage_id_(ViewStorage::GetInstance()->CreateStorageID()),
-      anchor_widget_(NULL),
-      arrow_(arrow),
-      shadow_(BubbleBorder::SMALL_SHADOW),
-      color_explicitly_set_(false),
-      margins_(kDefaultMargin, kDefaultMargin, kDefaultMargin, kDefaultMargin),
-      accept_events_(true),
-      border_accepts_events_(true),
-      adjust_if_offscreen_(true),
-      parent_window_(NULL) {
-  SetAnchorView(anchor_view);
-  AddAccelerator(ui::Accelerator(ui::VKEY_ESCAPE, ui::EF_NONE));
-  UpdateColorsFromTheme(GetNativeTheme());
-}
-
-BubbleDelegateView::~BubbleDelegateView() {
-  if (GetWidget())
-    GetWidget()->RemoveObserver(this);
-  SetLayoutManager(NULL);
-  SetAnchorView(NULL);
-}
-
-// static
-Widget* BubbleDelegateView::CreateBubble(BubbleDelegateView* bubble_delegate) {
-  bubble_delegate->Init();
-  // Get the latest anchor widget from the anchor view at bubble creation time.
-  bubble_delegate->SetAnchorView(bubble_delegate->GetAnchorView());
-  Widget* bubble_widget = CreateBubbleWidget(bubble_delegate);
-
-#if defined(OS_WIN)
-  // If glass is enabled, the bubble is allowed to extend outside the bounds of
-  // the parent frame and let DWM handle compositing.  If not, then we don't
-  // want to allow the bubble to extend the frame because it will be clipped.
-  bubble_delegate->set_adjust_if_offscreen(ui::win::IsAeroGlassEnabled());
-#elif defined(OS_LINUX) && !defined(OS_CHROMEOS)
-  // Linux clips bubble windows that extend outside their parent window bounds.
-  bubble_delegate->set_adjust_if_offscreen(false);
-#endif
-
-  bubble_delegate->SizeToContents();
-  bubble_widget->AddObserver(bubble_delegate);
-  return bubble_widget;
-}
-
-BubbleDelegateView* BubbleDelegateView::AsBubbleDelegate() {
-  return this;
-}
-
-bool BubbleDelegateView::ShouldShowCloseButton() const {
-  return false;
-}
-
-View* BubbleDelegateView::GetContentsView() {
-  return this;
-}
-
-NonClientFrameView* BubbleDelegateView::CreateNonClientFrameView(
-    Widget* widget) {
-  BubbleFrameView* frame = new BubbleFrameView(margins());
-  // Note: In CreateBubble, the call to SizeToContents() will cause
-  // the relayout that this call requires.
-  frame->SetTitleFontList(GetTitleFontList());
-  BubbleBorder::Arrow adjusted_arrow = arrow();
-  if (base::i18n::IsRTL())
-    adjusted_arrow = BubbleBorder::horizontal_mirror(adjusted_arrow);
-  frame->SetBubbleBorder(scoped_ptr<BubbleBorder>(
-      new BubbleBorder(adjusted_arrow, shadow(), color())));
-  return frame;
-}
-
-void BubbleDelegateView::GetAccessibleState(ui::AXViewState* state) {
-  state->role = ui::AX_ROLE_DIALOG;
-}
-
-void BubbleDelegateView::OnWidgetDestroying(Widget* widget) {
-  if (anchor_widget() == widget)
-    SetAnchorView(NULL);
-}
-
-void BubbleDelegateView::OnWidgetVisibilityChanging(Widget* widget,
-                                                    bool visible) {
-#if defined(OS_WIN)
-  // On Windows we need to handle this before the bubble is visible or hidden.
-  // Please see the comment on the OnWidgetVisibilityChanging function. On
-  // other platforms it is fine to handle it after the bubble is shown/hidden.
-  HandleVisibilityChanged(widget, visible);
-#endif
-}
-
-void BubbleDelegateView::OnWidgetVisibilityChanged(Widget* widget,
-                                                   bool visible) {
-#if !defined(OS_WIN)
-  HandleVisibilityChanged(widget, visible);
-#endif
-}
-
-void BubbleDelegateView::OnWidgetActivationChanged(Widget* widget,
-                                                   bool active) {
-  if (close_on_deactivate() && widget == GetWidget() && !active)
-    GetWidget()->Close();
-}
-
-void BubbleDelegateView::OnWidgetBoundsChanged(Widget* widget,
-                                               const gfx::Rect& new_bounds) {
-  if (anchor_widget() == widget)
-    SizeToContents();
-}
-
-View* BubbleDelegateView::GetAnchorView() const {
-  return ViewStorage::GetInstance()->RetrieveView(anchor_view_storage_id_);
-}
-
-gfx::Rect BubbleDelegateView::GetAnchorRect() const {
-  if (!GetAnchorView())
-    return anchor_rect_;
-
-  anchor_rect_ = GetAnchorView()->GetBoundsInScreen();
-  anchor_rect_.Inset(anchor_view_insets_);
-  return anchor_rect_;
-}
-
-void BubbleDelegateView::OnBeforeBubbleWidgetInit(Widget::InitParams* params,
-                                                  Widget* widget) const {
-}
-
-void BubbleDelegateView::SetAlignment(BubbleBorder::BubbleAlignment alignment) {
-  GetBubbleFrameView()->bubble_border()->set_alignment(alignment);
-  SizeToContents();
-}
-
-void BubbleDelegateView::SetArrowPaintType(
-    BubbleBorder::ArrowPaintType paint_type) {
-  GetBubbleFrameView()->bubble_border()->set_paint_arrow(paint_type);
-  SizeToContents();
-}
-
-void BubbleDelegateView::OnAnchorBoundsChanged() {
-  SizeToContents();
-}
-
-bool BubbleDelegateView::AcceleratorPressed(
-    const ui::Accelerator& accelerator) {
-  if (!close_on_esc() || accelerator.key_code() != ui::VKEY_ESCAPE)
-    return false;
-  GetWidget()->Close();
-  return true;
-}
-
-void BubbleDelegateView::OnNativeThemeChanged(const ui::NativeTheme* theme) {
-  UpdateColorsFromTheme(theme);
-}
-
-void BubbleDelegateView::Init() {}
-
-void BubbleDelegateView::SetAnchorView(View* anchor_view) {
-  // When the anchor view gets set the associated anchor widget might
-  // change as well.
-  if (!anchor_view || anchor_widget() != anchor_view->GetWidget()) {
-    if (anchor_widget()) {
-      anchor_widget_->RemoveObserver(this);
-      anchor_widget_ = NULL;
-    }
-    if (anchor_view) {
-      anchor_widget_ = anchor_view->GetWidget();
-      if (anchor_widget_)
-        anchor_widget_->AddObserver(this);
-    }
-  }
-
-  // Remove the old storage item and set the new (if there is one).
-  ViewStorage* view_storage = ViewStorage::GetInstance();
-  if (view_storage->RetrieveView(anchor_view_storage_id_))
-    view_storage->RemoveView(anchor_view_storage_id_);
-  if (anchor_view)
-    view_storage->StoreView(anchor_view_storage_id_, anchor_view);
-
-  // Do not update anchoring for NULL views; this could indicate that our
-  // NativeWindow is being destroyed, so it would be dangerous for us to update
-  // our anchor bounds at that point. (It's safe to skip this, since if we were
-  // to update the bounds when |anchor_view| is NULL, the bubble won't move.)
-  if (anchor_view && GetWidget())
-    OnAnchorBoundsChanged();
-}
-
-void BubbleDelegateView::SetAnchorRect(const gfx::Rect& rect) {
-  anchor_rect_ = rect;
-  if (GetWidget())
-    OnAnchorBoundsChanged();
-}
-
-void BubbleDelegateView::SizeToContents() {
-  GetWidget()->SetBounds(GetBubbleBounds());
-}
-
-BubbleFrameView* BubbleDelegateView::GetBubbleFrameView() const {
-  const NonClientView* view =
-      GetWidget() ? GetWidget()->non_client_view() : NULL;
-  return view ? static_cast<BubbleFrameView*>(view->frame_view()) : NULL;
-}
-
-gfx::Rect BubbleDelegateView::GetBubbleBounds() {
-  // The argument rect has its origin at the bubble's arrow anchor point;
-  // its size is the preferred size of the bubble's client view (this view).
-  bool anchor_minimized = anchor_widget() && anchor_widget()->IsMinimized();
-  return GetBubbleFrameView()->GetUpdatedWindowBounds(GetAnchorRect(),
-      GetPreferredSize(), adjust_if_offscreen_ && !anchor_minimized);
-}
-
-const gfx::FontList& BubbleDelegateView::GetTitleFontList() const {
-  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
-  return rb.GetFontList(ui::ResourceBundle::MediumFont);
-}
-
-
-void BubbleDelegateView::UpdateColorsFromTheme(const ui::NativeTheme* theme) {
-  if (!color_explicitly_set_)
-    color_ = theme->GetSystemColor(ui::NativeTheme::kColorId_DialogBackground);
-  set_background(Background::CreateSolidBackground(color()));
-  BubbleFrameView* frame_view = GetBubbleFrameView();
-  if (frame_view)
-    frame_view->bubble_border()->set_background_color(color());
-}
-
-void BubbleDelegateView::HandleVisibilityChanged(Widget* widget, bool visible) {
-  if (widget == GetWidget() && anchor_widget() &&
-      anchor_widget()->GetTopLevelWidget()) {
-    if (visible)
-      anchor_widget()->GetTopLevelWidget()->DisableInactiveRendering();
-    else
-      anchor_widget()->GetTopLevelWidget()->EnableInactiveRendering();
-  }
-}
-
-}  // namespace views