chromium/chrome/browser/ui/views/tabs/tab_strip_scrolling_overflow_indicator_strategy.cc

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/views/tabs/tab_strip_scrolling_overflow_indicator_strategy.h"

#include "base/notreached.h"
#include "cc/paint/paint_shader.h"
#include "chrome/browser/ui/tabs/features.h"
#include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
#include "chrome/browser/ui/views/tabs/tab_style_views.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/canvas.h"
#include "ui/views/controls/scroll_view.h"
#include "ui/views/view_utils.h"

namespace {

// Must be kept the same as kTabScrollingButtonPositionVariations values
enum OverflowFeatureFlag { … };

}  // anonymous namespace

TabStripScrollingOverflowIndicatorStrategy::
    TabStripScrollingOverflowIndicatorStrategy(
        views::ScrollView* scroll_view,
        base::RepeatingCallback<SkColor4f()> get_frame_color,
        base::RepeatingCallback<SkColor4f()> get_shadow_color)
    : … { … }

TabStripScrollingOverflowIndicatorStrategy::
    ~TabStripScrollingOverflowIndicatorStrategy() = default;

// static
std::unique_ptr<TabStripScrollingOverflowIndicatorStrategy>
TabStripScrollingOverflowIndicatorStrategy::CreateFromFeatureFlag(
    views::ScrollView* scroll_view,
    base::RepeatingCallback<SkColor4f()> get_frame_color,
    base::RepeatingCallback<SkColor4f()> get_shadow_color) { … }

GradientIndicatorView::GradientIndicatorView(
    views::OverflowIndicatorAlignment side,
    int opaque_width,
    int shadow_opaque_width,
    int shadow_blur_width)
    : … { … }

GradientIndicatorView::GradientIndicatorView(
    views::OverflowIndicatorAlignment side)
    : … { … }

void GradientIndicatorView::OnPaint(gfx::Canvas* canvas) { … }

void GradientIndicatorView::SetShadowColor(SkColor4f new_shadow_color) { … }

void GradientIndicatorView::SetFrameColor(SkColor4f new_frame_color) { … }

BEGIN_METADATA(…)

GradientOverflowIndicatorStrategy::GradientOverflowIndicatorStrategy(
    views::ScrollView* scroll_view,
    base::RepeatingCallback<SkColor4f()> get_frame_color,
    base::RepeatingCallback<SkColor4f()> get_shadow_color)
    : … { … }

void GradientOverflowIndicatorStrategy::Init() { … }

ShadowOverflowIndicatorStrategy::ShadowOverflowIndicatorStrategy(
    views::ScrollView* scroll_view,
    base::RepeatingCallback<SkColor4f()> get_frame_color,
    base::RepeatingCallback<SkColor4f()> get_shadow_color)
    : … { … }

void ShadowOverflowIndicatorStrategy::FrameColorsChanged() { … }

FadeOverflowIndicatorStrategy::FadeOverflowIndicatorStrategy(
    views::ScrollView* scroll_view,
    base::RepeatingCallback<SkColor4f()> get_frame_color,
    base::RepeatingCallback<SkColor4f()> get_shadow_color)
    : … { … }

void FadeOverflowIndicatorStrategy::Init() { … }

void FadeOverflowIndicatorStrategy::FrameColorsChanged() { … }

DividerOverflowIndicatorStrategy::DividerOverflowIndicatorStrategy(
    views::ScrollView* scroll_view,
    base::RepeatingCallback<SkColor4f()> get_frame_color,
    base::RepeatingCallback<SkColor4f()> get_shadow_color)
    : … { … }

void DividerOverflowIndicatorStrategy::Init() { … }

void DividerOverflowIndicatorStrategy::FrameColorsChanged() { … }