Add WebNotificationTray

ash/system/tray/system_tray_bubble.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 "ash/system/tray/system_tray_bubble.h"
 
 #include "ash/shell.h"
-#include "ash/shell_window_ids.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "ash/system/tray/tray_constants.h"
-#include "ash/wm/shelf_layout_manager.h"
 #include "ash/wm/window_animations.h"
 #include "base/message_loop.h"
-#include "grit/ash_strings.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkPath.h"
-#include "third_party/skia/include/effects/SkBlurImageFilter.h"
 #include "ui/aura/event.h"
 #include "ui/aura/window.h"
-#include "ui/base/accessibility/accessible_view_state.h"
-#include "ui/base/l10n/l10n_util.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_animation_observer.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/canvas.h"
-#include "ui/gfx/screen.h"
-#include "ui/views/bubble/bubble_frame_view.h"
 #include "ui/views/layout/box_layout.h"
-#include "ui/views/layout/fill_layout.h"
 #include "ui/views/view.h"
 
 namespace ash {
 
 namespace {
 
-const int kShadowThickness = 4;
-
-const int kBottomLineHeight = 1;
-
-const int kSystemTrayBubbleHorizontalInset = 1;
-const int kSystemTrayBubbleVerticalInset = 1;
-
-const int kArrowHeight = 10;
-const int kArrowWidth = 20;
-const int kArrowPaddingFromRight = 20;
-const int kArrowPaddingFromBottom = 17;
-const int kMinArrowOffset = 12;
-
 const int kAnimationDurationForPopupMS = 200;
 
 // Normally a detailed view is the same size as the default view. However,
 // when showing a detailed view directly (e.g. clicking on a notification),
 // we may not know the height of the default view, or the default view may
 // be too short, so we use this as a default and minimum height for any
 // detailed view.
 const int kDetailedBubbleMaxHeight = kTrayPopupItemHeight * 5;
 
-const SkColor kShadowColor = SkColorSetARGB(0xff, 0, 0, 0);
-
-void DrawBlurredShadowAroundView(gfx::Canvas* canvas,
-                                 int top,
-                                 int bottom,
-                                 int width,
-                                 const gfx::Insets& inset) {
-  SkPath path;
-  path.incReserve(4);
-  path.moveTo(SkIntToScalar(inset.left() + kShadowThickness),
-              SkIntToScalar(top + kShadowThickness + 1));
-  path.lineTo(SkIntToScalar(inset.left() + kShadowThickness),
-              SkIntToScalar(bottom));
-  path.lineTo(SkIntToScalar(width),
-              SkIntToScalar(bottom));
-  path.lineTo(SkIntToScalar(width),
-              SkIntToScalar(top + kShadowThickness + 1));
-
-  SkPaint paint;
-  paint.setColor(kShadowColor);
-  paint.setStyle(SkPaint::kStroke_Style);
-  paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
-  paint.setStrokeWidth(SkIntToScalar(3));
-  paint.setImageFilter(new SkBlurImageFilter(
-      SkIntToScalar(3), SkIntToScalar(3)))->unref();
-  canvas->sk_canvas()->drawPath(path, paint);
-}
-
 // A view with some special behaviour for tray items in the popup:
 // - changes background color on hover.
 class TrayPopupItemContainer : public views::View {
  public:
   explicit TrayPopupItemContainer(views::View* view) : hover_(false) {
     set_notify_enter_exit_on_child(true);
     set_border(view->border() ? views::Border::CreateEmptyBorder(0, 0, 0, 0) :
         views::Border::CreateSolidSidedBorder(1, 1, 0, 1, kBorderDarkColor));
     views::BoxLayout* layout = new views::BoxLayout(
         views::BoxLayout::kVertical, 0, 0, 0);
@@ skipping 40 matching lines @@
       canvas->FillRect(gfx::Rect(size()),
           hover_ ? kHoverBackgroundColor : kBackgroundColor);
     }
   }
 
   bool hover_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayPopupItemContainer);
 };
 
-class SystemTrayBubbleBorder : public views::BubbleBorder {
- public:
-  SystemTrayBubbleBorder(views::View* owner,
-                         views::BubbleBorder::ArrowLocation arrow_location,
-                         int arrow_offset)
-      : views::BubbleBorder(arrow_location,
-                            views::BubbleBorder::NO_SHADOW),
-        owner_(owner),
-        arrow_offset_(std::max(arrow_offset, kMinArrowOffset)) {
-    set_alignment(views::BubbleBorder::ALIGN_EDGE_TO_ANCHOR_EDGE);
-  }
-
-  virtual ~SystemTrayBubbleBorder() {}
-
- private:
-  // Overridden from views::BubbleBorder.
-  // Override views::BubbleBorder to set the bubble on top of the anchor when
-  // it has no arrow.
-  virtual gfx::Rect GetBounds(const gfx::Rect& position_relative_to,
-                              const gfx::Size& contents_size) const OVERRIDE {
-    if (arrow_location() != NONE) {
-      return views::BubbleBorder::GetBounds(position_relative_to,
-                                            contents_size);
-    }
-
-    gfx::Size border_size(contents_size);
-    gfx::Insets insets;
-    GetInsets(&insets);
-    border_size.Enlarge(insets.width(), insets.height());
-
-    const int kArrowOverlap = 3;
-    int x = position_relative_to.x() +
-            position_relative_to.width() / 2 - border_size.width() / 2;
-    // Position the bubble on top of the anchor.
-    int y = position_relative_to.y() +
-            kArrowOverlap - border_size.height();
-    return gfx::Rect(x, y, border_size.width(), border_size.height());
-  }
-
-  // Overridden from views::Border.
-  virtual void Paint(const views::View& view,
-                     gfx::Canvas* canvas) const OVERRIDE {
-    gfx::Insets inset;
-    GetInsets(&inset);
-    DrawBlurredShadowAroundView(canvas, 0, owner_->height(), owner_->width(),
-        inset);
-
-    // Draw the bottom line.
-    int y = owner_->height() + 1;
-    canvas->FillRect(gfx::Rect(inset.left(), y, owner_->width(),
-                               kBottomLineHeight), kBorderDarkColor);
-
-    if (!Shell::GetInstance()->shelf()->IsVisible() ||
-        arrow_location() == views::BubbleBorder::NONE)
-      return;
-
-    // Draw the arrow after drawing child borders, so that the arrow can cover
-    // the its overlap section with child border.
-    SkPath path;
-    path.incReserve(4);
-    if (arrow_location() == views::BubbleBorder::BOTTOM_RIGHT) {
-      int tip_x = base::i18n::IsRTL() ? arrow_offset_ :
-          owner_->width() - arrow_offset_;
-      if (tip_x < kArrowPaddingFromRight + kArrowWidth / 2)
-        tip_x = kArrowPaddingFromRight + kArrowWidth / 2;
-      if (tip_x > owner_->width() - kArrowPaddingFromRight - kArrowWidth / 2)
-        tip_x = owner_->width() - kArrowPaddingFromRight - kArrowWidth / 2;
-      int left_base_x = tip_x - kArrowWidth / 2;
-      int left_base_y = y;
-      int tip_y = left_base_y + kArrowHeight;
-      path.moveTo(SkIntToScalar(left_base_x), SkIntToScalar(left_base_y));
-      path.lineTo(SkIntToScalar(tip_x), SkIntToScalar(tip_y));
-      path.lineTo(SkIntToScalar(left_base_x + kArrowWidth),
-                  SkIntToScalar(left_base_y));
-    } else if (arrow_location() == views::BubbleBorder::LEFT_BOTTOM) {
-      int tip_y = y - arrow_offset_;
-      int top_base_y = tip_y - kArrowWidth / 2;
-      int top_base_x = inset.left() + kSystemTrayBubbleHorizontalInset;
-      int tip_x = top_base_x - kArrowHeight;
-      path.moveTo(SkIntToScalar(top_base_x), SkIntToScalar(top_base_y));
-      path.lineTo(SkIntToScalar(tip_x), SkIntToScalar(tip_y));
-      path.lineTo(SkIntToScalar(top_base_x),
-                  SkIntToScalar(top_base_y + kArrowWidth));
-    } else if (arrow_location() == views::BubbleBorder::RIGHT_BOTTOM){
-      int tip_y = y - arrow_offset_;
-      int top_base_y = tip_y - kArrowWidth / 2;
-      int top_base_x = inset.left() + owner_->width() -
-                       kSystemTrayBubbleHorizontalInset;
-      int tip_x = top_base_x + kArrowHeight;
-      path.moveTo(SkIntToScalar(top_base_x), SkIntToScalar(top_base_y));
-      path.lineTo(SkIntToScalar(tip_x), SkIntToScalar(tip_y));
-      path.lineTo(SkIntToScalar(top_base_x),
-                  SkIntToScalar(top_base_y + kArrowWidth));
-    }
-
-    SkPaint paint;
-    paint.setStyle(SkPaint::kFill_Style);
-    paint.setColor(kHeaderBackgroundColorDark);
-    canvas->DrawPath(path, paint);
-
-    // Now draw the arrow border.
-    paint.setStyle(SkPaint::kStroke_Style);
-    paint.setColor(kBorderDarkColor);
-    canvas->DrawPath(path, paint);
-
-  }
-
-  views::View* owner_;
-  const int arrow_offset_;
-
-  DISALLOW_COPY_AND_ASSIGN(SystemTrayBubbleBorder);
-};
-
 // Implicit animation observer that deletes itself and the layer at the end of
 // the animation.
 class AnimationObserverDeleteLayer : public ui::ImplicitAnimationObserver {
  public:
   explicit AnimationObserverDeleteLayer(ui::Layer* layer)
       : layer_(layer) {
   }
 
   virtual ~AnimationObserverDeleteLayer() {
   }
 
   virtual void OnImplicitAnimationsCompleted() OVERRIDE {
     MessageLoopForUI::current()->DeleteSoon(FROM_HERE, this);
   }
 
  private:
   scoped_ptr<ui::Layer> layer_;
 
   DISALLOW_COPY_AND_ASSIGN(AnimationObserverDeleteLayer);
 };
 
 }  // namespace
 
 namespace internal {
 
-// SystemTrayBubbleView
-
-SystemTrayBubbleView::SystemTrayBubbleView(
-    views::View* anchor,
-    views::BubbleBorder::ArrowLocation arrow_location,
-    SystemTrayBubble* host,
-    bool can_activate)
-    : views::BubbleDelegateView(anchor, arrow_location),
-      host_(host),
-      can_activate_(can_activate),
-      max_height_(0) {
-  set_margin(0);
-  set_parent_window(ash::Shell::GetInstance()->GetContainer(
-      ash::internal::kShellWindowId_SettingBubbleContainer));
-  set_notify_enter_exit_on_child(true);
-  SetPaintToLayer(true);
-  SetFillsBoundsOpaquely(true);
-}
-
-SystemTrayBubbleView::~SystemTrayBubbleView() {
-  // Inform host items (models) that their views are being destroyed.
-  if (host_)
-    host_->DestroyItemViews();
-}
-
-void SystemTrayBubbleView::SetBubbleBorder(views::BubbleBorder* border) {
-  GetBubbleFrameView()->SetBubbleBorder(border);
-}
-
-void SystemTrayBubbleView::UpdateAnchor() {
-  SizeToContents();
-  GetWidget()->GetRootView()->SchedulePaint();
-}
-
-void SystemTrayBubbleView::Init() {
-  views::BoxLayout* layout =
-      new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0);
-  layout->set_spread_blank_space(true);
-  SetLayoutManager(layout);
-  set_background(NULL);
-}
-
-gfx::Rect SystemTrayBubbleView::GetAnchorRect() {
-  gfx::Rect rect;
-  if (host_)
-    rect = host_->GetAnchorRect();
-  // TODO(jennyz): May need to add left/right alignment in the following code.
-  if (rect.IsEmpty()) {
-    rect = gfx::Screen::GetPrimaryMonitor().bounds();
-    rect = gfx::Rect(
-        base::i18n::IsRTL() ? kPaddingFromRightEdgeOfScreenBottomAlignment :
-            rect.width() - kPaddingFromRightEdgeOfScreenBottomAlignment,
-        rect.height() - kPaddingFromBottomOfScreenBottomAlignment,
-        0, 0);
-  }
-  return rect;
-}
-
-bool SystemTrayBubbleView::CanActivate() const {
-  return can_activate_;
-}
-
-gfx::Size SystemTrayBubbleView::GetPreferredSize() {
-  gfx::Size size = views::BubbleDelegateView::GetPreferredSize();
-  int height = size.height();
-  if (max_height_ != 0 && height > max_height_)
-    height = max_height_;
-  return gfx::Size(kTrayPopupWidth, height);
-}
-
-void SystemTrayBubbleView::OnMouseEntered(const views::MouseEvent& event) {
-  if (host_)
-    host_->StopAutoCloseTimer();
-}
-
-void SystemTrayBubbleView::OnMouseExited(const views::MouseEvent& event) {
-  if (host_)
-    host_->RestartAutoCloseTimer();
-}
-
-void SystemTrayBubbleView::GetAccessibleState(ui::AccessibleViewState* state) {
-  if (can_activate_) {
-    state->role = ui::AccessibilityTypes::ROLE_WINDOW;
-    state->name = l10n_util::GetStringUTF16(
-        IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME);
-  }
-}
-
-void SystemTrayBubbleView::ChildPreferredSizeChanged(View* child) {
-  SizeToContents();
-}
-
-void SystemTrayBubbleView::ViewHierarchyChanged(bool is_add,
-                                                views::View* parent,
-                                                views::View* child) {
-  if (is_add && child == this) {
-    parent->SetPaintToLayer(true);
-    parent->SetFillsBoundsOpaquely(true);
-    parent->layer()->SetMasksToBounds(true);
-  }
-}
-
 // SystemTrayBubble::InitParams
 SystemTrayBubble::InitParams::InitParams(
     SystemTrayBubble::AnchorType anchor_type,
     ShelfAlignment shelf_alignment)
     : anchor(NULL),
       anchor_type(anchor_type),
       can_activate(false),
       login_status(ash::user::LOGGED_IN_NONE),
-      arrow_offset(
-          (shelf_alignment == SHELF_ALIGNMENT_BOTTOM ?
-               kArrowPaddingFromRight : kArrowPaddingFromBottom)
-          + kArrowWidth / 2),
+      arrow_offset(0),
       max_height(0) {
 }
 
 // SystemTrayBubble
 
 SystemTrayBubble::SystemTrayBubble(
     ash::SystemTray* tray,
     const std::vector<ash::SystemTrayItem*>& items,
     BubbleType bubble_type)
     : tray_(tray),
@@ skipping 75 matching lines @@
 
   DestroyItemViews();
   bubble_view_->RemoveAllChildViews(true);
 
   items_ = items;
   bubble_type_ = bubble_type;
   CreateItemViews(Shell::GetInstance()->tray_delegate()->GetUserLoginStatus());
   bubble_widget_->GetContentsView()->Layout();
   // Make sure that the bubble is large enough for the default view.
   if (bubble_type_ == BUBBLE_TYPE_DEFAULT) {
-    bubble_view_->set_max_height(0);  // Clear max height limit.
-    bubble_view_->SizeToContents();
+    bubble_view_->SetMaxHeight(0);  // Clear max height limit.
   }
 
   // When transitioning from default view to detailed view, animate the new
   // view (slide in from the right).
   if (bubble_type == BUBBLE_TYPE_DETAILED) {
     ui::Layer* new_layer = bubble_view_->layer();
     gfx::Rect bounds = new_layer->bounds();
     ui::Transform transform;
     transform.SetTranslateX(bounds.width());
     new_layer->SetTransform(transform);
@@ skipping 23 matching lines @@
     arrow_location = views::BubbleBorder::NONE;
   }
   bubble_view_ = new SystemTrayBubbleView(
       init_params.anchor, arrow_location, this, init_params.can_activate);
   if (bubble_type_ == BUBBLE_TYPE_NOTIFICATION)
     bubble_view_->set_close_on_deactivate(false);
   int max_height = init_params.max_height;
   if (bubble_type_ == BUBBLE_TYPE_DETAILED &&
       max_height < kDetailedBubbleMaxHeight)
     max_height = kDetailedBubbleMaxHeight;
-  bubble_view_->set_max_height(max_height);
+  bubble_view_->SetMaxHeight(max_height);
 
   CreateItemViews(init_params.login_status);
 
   DCHECK(bubble_widget_ == NULL);
   bubble_widget_ = views::BubbleDelegateView::CreateBubble(bubble_view_);
 
   // Must occur after call to CreateBubble()
   bubble_view_->SetAlignment(views::BubbleBorder::ALIGN_EDGE_TO_ANCHOR_EDGE);
   bubble_widget_->non_client_view()->frame_view()->set_background(NULL);
-  SystemTrayBubbleBorder* bubble_border = new SystemTrayBubbleBorder(
-      bubble_view_, arrow_location, init_params.arrow_offset);
-  bubble_view_->SetBubbleBorder(bubble_border);
-  // Recalculate with new border.
-  bubble_view_->SizeToContents();
+  bubble_view_->SetBubbleBorder(init_params.arrow_offset);
 
   bubble_widget_->AddObserver(this);
 
   // Setup animation.
   ash::SetWindowVisibilityAnimationType(
       bubble_widget_->GetNativeWindow(),
       ash::WINDOW_VISIBILITY_ANIMATION_TYPE_FADE);
   ash::SetWindowVisibilityAnimationTransition(
       bubble_widget_->GetNativeWindow(),
       ash::ANIMATE_BOTH);
   ash::SetWindowVisibilityAnimationDuration(
       bubble_widget_->GetNativeWindow(),
       base::TimeDelta::FromMilliseconds(kAnimationDurationForPopupMS));
 
   bubble_view_->Show();
 }
 
+void SystemTrayBubble::BubbleViewDestroyed() {
+  DestroyItemViews();
+}
+
 gfx::Rect SystemTrayBubble::GetAnchorRect() const {
   gfx::Rect rect;
   views::Widget* widget = bubble_view()->anchor_widget();
   if (widget->IsVisible()) {
     rect = widget->GetWindowScreenBounds();
     if (anchor_type_ == ANCHOR_TYPE_TRAY) {
       if (tray_->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM) {
         rect.Inset(
             base::i18n::IsRTL() ?
                 kPaddingFromRightEdgeOfScreenBottomAlignment : 0,
@@ skipping 14 matching lines @@
       // be deducted out from the anchor rect.
       views::View* anchor_view = bubble_view()->anchor_view();
       rect = anchor_view->GetScreenBounds();
       gfx::Insets insets = anchor_view->GetInsets();
       rect.Inset(insets);
     }
   }
   return rect;
 }
 
+void SystemTrayBubble::OnMouseEnteredView() {
+  StopAutoCloseTimer();
+}
+
+void SystemTrayBubble::OnMouseExitedView() {
+  RestartAutoCloseTimer();
+}
+
 void SystemTrayBubble::DestroyItemViews() {
   for (std::vector<ash::SystemTrayItem*>::iterator it = items_.begin();
        it != items_.end();
        ++it) {
     switch (bubble_type_) {
       case BUBBLE_TYPE_DEFAULT:
         (*it)->DestroyDefaultView();
         break;
       case BUBBLE_TYPE_DETAILED:
         (*it)->DestroyDetailedView();
@@ skipping 22 matching lines @@
 void SystemTrayBubble::RestartAutoCloseTimer() {
   if (autoclose_delay_)
     StartAutoCloseTimer(autoclose_delay_);
 }
 
 void SystemTrayBubble::Close() {
   if (bubble_widget_)
     bubble_widget_->Close();
 }
 
+void SystemTrayBubble::SetVisible(bool is_visible) {
+  if (bubble_widget_) {
+    if (is_visible)
+      bubble_widget_->Show();
+    else
+      bubble_widget_->Hide();
+  }
+}
+
+bool SystemTrayBubble::IsVisible() {
+  return bubble_widget_ && bubble_widget_->IsVisible();
+}
+
 void SystemTrayBubble::CreateItemViews(user::LoginStatus login_status) {
   for (std::vector<ash::SystemTrayItem*>::iterator it = items_.begin();
        it != items_.end();
        ++it) {
     views::View* view = NULL;
     switch (bubble_type_) {
       case BUBBLE_TYPE_DEFAULT:
         view = (*it)->CreateDefaultView(login_status);
         break;
       case BUBBLE_TYPE_DETAILED:
@@ skipping 53 matching lines @@
 }
 
 void SystemTrayBubble::OnWidgetClosing(views::Widget* widget) {
   CHECK_EQ(bubble_widget_, widget);
   bubble_widget_ = NULL;
   tray_->RemoveBubble(this);
 }
 
 }  // namespace internal
 }  // namespace ash