Revert 115297 - Add overflow indicator count on Windows.

chrome/browser/ui/panels/panel_overflow_indicator_view.cc

-// Copyright (c) 2011 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/ui/panels/panel_overflow_indicator_view.h"
-
-#include "base/logging.h"
-#include "base/string_number_conversions.h"
-#include "chrome/browser/ui/panels/panel_browser_frame_view.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/font.h"
-#include "ui/gfx/path.h"
-#include "ui/views/background.h"
-#include "ui/views/painter.h"
-#include "ui/views/widget/widget.h"
-
-namespace {
-
-enum OverflowPaintState {
-  PAINT_AS_NORMAL,
-  PAINT_FOR_ATTENTION
-};
-
-// The height in pixels of the widget to show the plus count.
-const int kWidgetHeight = 15;
-
-// The radius of the corner of the border.
-const int kCornerRadius = 4;
-
-// Metrics used to draw the text.
-const int kTextFontSize = 10;
-const SkColor kTextColor = SK_ColorWHITE;
-
-// Gradient colors used to draw the background in normal mode.
-const SkColor kNormalBackgroundColorStart = 0xff777777;
-const SkColor kNormalBackgroundColorEnd = 0xff555555;
-
-// Gradient colors used to draw the background in attention mode.
-const SkColor kAttentionBackgroundColorStart = 0xffffab57;
-const SkColor kAttentionBackgroundColorEnd = 0xfff59338;
-
-views::Painter* GetBackgroundPainter(OverflowPaintState paint_state) {
-  static views::Painter* normal_painter = NULL;
-  static views::Painter* attention_painter = NULL;
-
-  if (paint_state == PAINT_AS_NORMAL) {
-    if (!normal_painter) {
-      normal_painter = views::Painter::CreateVerticalGradient(
-          kNormalBackgroundColorStart, kNormalBackgroundColorEnd);
-    }
-    return normal_painter;
-  } else {
-    if (!attention_painter) {
-      attention_painter = views::Painter::CreateVerticalGradient(
-          kAttentionBackgroundColorStart, kAttentionBackgroundColorEnd);
-    }
-    return attention_painter;
-  }
-}
-
-}  // namespace
-
-PanelOverflowIndicator* PanelOverflowIndicator::Create() {
-  return new PanelOverflowIndicatorView();
-}
-
-PanelOverflowIndicatorView::PanelOverflowIndicatorView()
-    : count_(0),
-      is_drawing_attention_(false) {
-  widget_.reset(new views::Widget);
-  views::Widget::InitParams params;
-  params.type = views::Widget::InitParams::TYPE_POPUP;
-  params.keep_on_top = true;
-  params.can_activate = false;
-  params.transparent = true;
-  params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-  widget_->Init(params);
-  widget_->SetAlwaysOnTop(true);
-
-  const gfx::Font& base_font =
-      ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont);
-  title_.SetFont(base_font.DeriveFont(
-      kTextFontSize - base_font.GetFontSize(), gfx::Font::BOLD));
-  title_.SetHorizontalAlignment(views::Label::ALIGN_CENTER);
-  title_.SetAutoColorReadabilityEnabled(false);
-
-  widget_->SetContentsView(&title_);
-  widget_->Show();
-
-  PaintBackground();
-}
-
-PanelOverflowIndicatorView::~PanelOverflowIndicatorView() {
-}
-
-int PanelOverflowIndicatorView::GetHeight() const {
-  return kWidgetHeight;
-}
-
-gfx::Rect PanelOverflowIndicatorView::GetBounds() const {
-  return widget_->GetWindowScreenBounds();
-}
-
-void PanelOverflowIndicatorView::SetBounds(const gfx::Rect& bounds) {
-  widget_->SetBounds(bounds);
-
-  gfx::Path path;
-  GetFrameMask(bounds, &path);
-  widget_->SetShape(path.CreateNativeRegion());
-}
-
-int PanelOverflowIndicatorView::GetCount() const {
-  return count_;
-}
-
-void PanelOverflowIndicatorView::SetCount(int count) {
-  if (count_ == count)
-    return;
-  count_ = count;
-
-  if (count_ > 0)
-    widget_->Show();
-  else
-    widget_->Hide();
-
-  UpdateTitle();
-}
-
-void PanelOverflowIndicatorView::DrawAttention() {
-  if (is_drawing_attention_)
-    return;
-  is_drawing_attention_ = true;
-  PaintBackground();
-}
-
-void PanelOverflowIndicatorView::StopDrawingAttention() {
-  if (!is_drawing_attention_)
-    return;
-  is_drawing_attention_ = false;
-  PaintBackground();
-}
-
-bool PanelOverflowIndicatorView::IsDrawingAttention() const {
-  return is_drawing_attention_;
-}
-
-void PanelOverflowIndicatorView::UpdateTitle() {
-  string16 text(L"+");
-  text += base::IntToString16(count_);
-  title_.SetText(text);
-}
-
-void PanelOverflowIndicatorView::PaintBackground() {
-  OverflowPaintState paint_state = is_drawing_attention_ ? PAINT_FOR_ATTENTION
-                                                         : PAINT_AS_NORMAL;
-
-  title_.set_background(views::Background::CreateBackgroundPainter(
-      false, GetBackgroundPainter(paint_state)));
-  title_.SetEnabledColor(kTextColor);
-  title_.SchedulePaint();  // SetEnabledColor does not call SchedulePaint.
-}
-
-void PanelOverflowIndicatorView::GetFrameMask(const gfx::Rect& rect,
-                                         gfx::Path* path) const {
-  SkScalar radius = SkIntToScalar(kCornerRadius);
-  SkScalar spline_radius = radius -
-      SkScalarMul(radius, (SK_ScalarSqrt2 - SK_Scalar1) * 4 / 3);
-  SkScalar left = SkIntToScalar(0);
-  SkScalar top = SkIntToScalar(0);
-  SkScalar right = SkIntToScalar(rect.width());
-  SkScalar bottom = SkIntToScalar(rect.height());
-
-  path->moveTo(left + radius, top);
-  path->lineTo(right - radius, top);
-  path->cubicTo(right - spline_radius, top,
-                right, top + spline_radius,
-                right, top + radius);
-  path->lineTo(right, bottom);
-  path->lineTo(left, bottom);
-  path->lineTo(left, top + radius);
-  path->cubicTo(left, top + spline_radius,
-                left + spline_radius, top,
-                left + radius, top);
-  path->close();
-}