Remove last MD reference from TrayPopupUtils.

ui/views/controls/slider.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/controls/slider.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "cc/paint/paint_flags.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 "ui/accessibility/ax_node_data.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/events/event.h"
-#include "ui/gfx/animation/slide_animation.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/resources/grit/ui_resources.h"
-#include "ui/views/controls/md_slider.h"
-#include "ui/views/controls/non_md_slider.h"
 #include "ui/views/resources/grit/views_resources.h"
 #include "ui/views/widget/widget.h"
 
 namespace {
 const int kSlideValueChangeDurationMs = 150;
 
 // The image chunks.
 enum BorderElements {
   LEFT,
   CENTER_LEFT,
   CENTER_RIGHT,
   RIGHT,
 };
 }  // namespace
 
 namespace views {
 
+namespace {
+
+// Color of slider at the active and the disabled state, respectively.
+const SkColor kActiveColor = SkColorSetARGB(0xFF, 0x42, 0x85, 0xF4);
+const SkColor kDisabledColor = SkColorSetARGB(0xFF, 0xBD, 0xBD, 0xBD);
+constexpr uint8_t kHighlightColorAlpha = 0x4D;
+
+// The thickness of the slider.
+constexpr int kLineThickness = 2;
+
+// The radius used to draw rounded slider ends.
+constexpr float kSliderRoundedRadius = 2.f;
+
+// The radius of the thumb and the highlighted thumb of the slider,
+// respectively.
+constexpr float kThumbRadius = 6.f;
+constexpr float kThumbWidth = 2 * kThumbRadius;
+constexpr float kThumbHighlightRadius = 10.f;
+
+// The stroke of the thumb when the slider is disabled.
+constexpr int kThumbStroke = 2;
+
+// Duration of the thumb highlight growing effect animation.
+constexpr int kSlideHighlightChangeDurationMs = 150;
+
+}  // namespace
+
 // static
 const char Slider::kViewClassName[] = "Slider";
 
-// static
-Slider* Slider::CreateSlider(bool is_material_design,
-                             SliderListener* listener) {
-  if (is_material_design)
-    return new MdSlider(listener);
-  return new NonMdSlider(listener);
+Slider::Slider(SliderListener* listener)
+    : listener_(listener), highlight_animation_(this) {
+  highlight_animation_.SetSlideDuration(kSlideHighlightChangeDurationMs);
+  EnableCanvasFlippingForRTLUI(true);
+#if defined(OS_MACOSX)
+  SetFocusBehavior(FocusBehavior::ACCESSIBLE_ONLY);
+#else
+  SetFocusBehavior(FocusBehavior::ALWAYS);
+#endif
+
+  SchedulePaint();

[msw, 2017/02/16 21:08:20]

q: needed? (presumably it'll schedule a paint when added to a view hier.)

[Evan Stade, 2017/02/16 22:48:01]

yea, this is weird. I don't know why it's here (just copied from
MdSlider::MdSlider). +yiyix

 }
 
-Slider::~Slider() {
-}
+Slider::~Slider() {}
 
 void Slider::SetValue(float value) {
   SetValueInternal(value, VALUE_CHANGED_BY_API);
 }
 
 void Slider::SetAccessibleName(const base::string16& name) {
   accessible_name_ = name;
 }
 
-Slider::Slider(SliderListener* listener)
-    : listener_(listener),
-      value_(0.f),
-      keyboard_increment_(0.1f),
-      initial_animating_value_(0.f),
-      value_is_valid_(false),
-      accessibility_events_enabled_(true),
-      initial_button_offset_(0) {
-  EnableCanvasFlippingForRTLUI(true);
-#if defined(OS_MACOSX)
-  SetFocusBehavior(FocusBehavior::ACCESSIBLE_ONLY);
-#else
-  SetFocusBehavior(FocusBehavior::ALWAYS);
-#endif
+void Slider::UpdateState(bool control_on) {
+  is_active_ = control_on;
+  SchedulePaint();
 }
 
 float Slider::GetAnimatingValue() const{
   return move_animation_ && move_animation_->is_animating()
              ? move_animation_->CurrentValueBetween(initial_animating_value_,
                                                     value_)
              : value_;
 }
 
-void Slider::SetHighlighted(bool is_highlighted) {}
+void Slider::SetHighlighted(bool is_highlighted) {
+  if (is_highlighted)
+    highlight_animation_.Show();
+  else
+    highlight_animation_.Hide();
+}
 
 void Slider::OnPaint(gfx::Canvas* canvas) {
-  View::OnPaint(canvas);
+  // Paint the slider.
+  const gfx::Rect content = GetContentsBounds();
+  const int width = content.width() - kThumbRadius * 2;
+  const int full = GetAnimatingValue() * width;
+  const int empty = width - full;
+  const int y = content.height() / 2 - kLineThickness / 2;
+  const int x = content.x() + full + kThumbRadius;
+  const SkColor current_thumb_color =
+      is_active_ ? kActiveColor : kDisabledColor;
+
+  // Extra space used to hide slider ends behind the thumb.
+  const int extra_padding = 1;
+
+  cc::PaintFlags slider_flags;
+  slider_flags.setAntiAlias(true);
+  slider_flags.setColor(current_thumb_color);
+  canvas->DrawRoundRect(
+      gfx::Rect(content.x(), y, full + extra_padding, kLineThickness),
+      kSliderRoundedRadius, slider_flags);
+  slider_flags.setColor(kDisabledColor);
+  canvas->DrawRoundRect(gfx::Rect(x + kThumbRadius - extra_padding, y,
+                                  empty + extra_padding, kLineThickness),
+                        kSliderRoundedRadius, slider_flags);
+
+  gfx::Point thumb_center(x, content.height() / 2);
+
+  // Paint the thumb highlight if it exists.
+  const int thumb_highlight_radius =
+      HasFocus() ? kThumbHighlightRadius : thumb_highlight_radius_;
+  if (is_active_ && thumb_highlight_radius > kThumbRadius) {
+    cc::PaintFlags highlight;
+    SkColor kHighlightColor = SkColorSetA(kActiveColor, kHighlightColorAlpha);
+    highlight.setColor(kHighlightColor);
+    highlight.setFlags(cc::PaintFlags::kAntiAlias_Flag);
+    canvas->DrawCircle(thumb_center, thumb_highlight_radius, highlight);
+  }
+
+  // Paint the thumb of the slider.
+  cc::PaintFlags flags;
+  flags.setColor(current_thumb_color);
+  flags.setFlags(cc::PaintFlags::kAntiAlias_Flag);
+
+  if (!is_active_) {
+    flags.setStrokeWidth(kThumbStroke);
+    flags.setStyle(cc::PaintFlags::kStroke_Style);
+  }
+  canvas->DrawCircle(
+      thumb_center,
+      is_active_ ? kThumbRadius : (kThumbRadius - kThumbStroke / 2), flags);
+
   OnPaintFocus(canvas);
 }
 
 void Slider::AnimationProgressed(const gfx::Animation* animation) {
-  if (animation == move_animation_.get())
-    SchedulePaint();
+  if (animation == &highlight_animation_) {
+    thumb_highlight_radius_ =
+        animation->CurrentValueBetween(kThumbRadius, kThumbHighlightRadius);
+  }
+
+  SchedulePaint();
 }
 
 void Slider::AnimationEnded(const gfx::Animation* animation) {
-  if (animation == move_animation_.get())
+  if (animation == move_animation_.get()) {
     move_animation_.reset();
+    return;
+  }
+  DCHECK_EQ(animation, &highlight_animation_);
 }
 
 void Slider::SetValueInternal(float value, SliderChangeReason reason) {
   bool old_value_valid = value_is_valid_;
 
   value_is_valid_ = true;
   if (value < 0.0)
     value = 0.0;
   else if (value > 1.0)
     value = 1.0;
@@ skipping 19 matching lines @@
   if (accessibility_events_enabled_ && GetWidget())
     NotifyAccessibilityEvent(ui::AX_EVENT_VALUE_CHANGED, true);
 }
 
 void Slider::PrepareForMove(const int new_x) {
   // Try to remember the position of the mouse cursor on the button.
   gfx::Insets inset = GetInsets();
   gfx::Rect content = GetContentsBounds();
   float value = GetAnimatingValue();
 
-  const int thumb_width = GetThumbWidth();
-  const int thumb_x = value * (content.width() - thumb_width);
+  const int thumb_x = value * (content.width() - kThumbWidth);
   const int candidate_x = (base::i18n::IsRTL() ?
       width() - (new_x - inset.left()) :
       new_x - inset.left()) - thumb_x;
-  if (candidate_x >= 0 && candidate_x < thumb_width)
+  if (candidate_x >= 0 && candidate_x < kThumbWidth)
     initial_button_offset_ = candidate_x;
   else
-    initial_button_offset_ = thumb_width / 2;
+    initial_button_offset_ = kThumbRadius;
 }
 
 void Slider::MoveButtonTo(const gfx::Point& point) {
   const gfx::Insets inset = GetInsets();
-  const int thumb_width = GetThumbWidth();
   // Calculate the value.
   int amount = base::i18n::IsRTL()
                    ? width() - inset.left() - point.x() - initial_button_offset_
                    : point.x() - inset.left() - initial_button_offset_;
   SetValueInternal(
-      static_cast<float>(amount) / (width() - inset.width() - thumb_width),
+      static_cast<float>(amount) / (width() - inset.width() - kThumbWidth),
       VALUE_CHANGED_BY_USER);
 }
 
 void Slider::OnPaintFocus(gfx::Canvas* canvas) {
   if (!HasFocus())
     return;
 
   // TODO(estade): make this a glow effect instead: crbug.com/658783
   gfx::Rect focus_bounds = GetLocalBounds();
   focus_bounds.Inset(gfx::Insets(1));
@@ skipping 93 matching lines @@
       event->SetHandled();
       if (event->details().touch_points() <= 1)
         OnSliderDragEnded();
       break;
     default:
       break;
   }
 }
 
 }  // namespace views