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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/theme/web_theme_engine_mac.h"
#include <variant>
#include "third_party/blink/renderer/platform/theme/web_theme_engine_conversions.h"
#include "ui/native_theme/native_theme.h"
namespace blink {
void WebThemeEngineMac::Paint(cc::PaintCanvas* canvas,
WebThemeEngine::Part part,
WebThemeEngine::State state,
const gfx::Rect& rect,
const WebThemeEngine::ExtraParams* extra_params,
mojom::ColorScheme color_scheme,
bool in_forced_colors,
const ui::ColorProvider* color_provider,
const std::optional<SkColor>& accent_color) {
if (IsScrollbarPart(part)) {
PaintMacScrollBarParts(canvas, color_provider, part, state, rect,
extra_params, color_scheme);
return;
}
WebThemeEngineDefault::Paint(canvas, part, state, rect, extra_params,
color_scheme, in_forced_colors, color_provider,
accent_color);
}
bool WebThemeEngineMac::IsScrollbarPart(WebThemeEngine::Part part) {
switch (part) {
case WebThemeEngine::kPartScrollbarHorizontalTrack:
case WebThemeEngine::kPartScrollbarVerticalTrack:
case WebThemeEngine::kPartScrollbarHorizontalThumb:
case WebThemeEngine::kPartScrollbarVerticalThumb:
case WebThemeEngine::kPartScrollbarCorner:
return true;
default:
return false;
}
}
void WebThemeEngineMac::PaintMacScrollBarParts(
cc::PaintCanvas* canvas,
const ui::ColorProvider* color_provider,
WebThemeEngine::Part part,
WebThemeEngine::State state,
const gfx::Rect& rect,
const WebThemeEngine::ExtraParams* extra_params,
mojom::ColorScheme color_scheme) {
ui::NativeTheme::ScrollbarExtraParams native_scrollbar_extra;
const WebThemeEngine::ScrollbarExtraParams& scrollbar_extra =
std::get<WebThemeEngine::ScrollbarExtraParams>(*extra_params);
native_scrollbar_extra.is_hovering = scrollbar_extra.is_hovering;
native_scrollbar_extra.is_overlay = scrollbar_extra.is_overlay;
native_scrollbar_extra.scale_from_dip = scrollbar_extra.scale_from_dip;
native_scrollbar_extra.track_color = scrollbar_extra.track_color;
native_scrollbar_extra.thumb_color = scrollbar_extra.thumb_color;
switch (scrollbar_extra.orientation) {
case WebThemeEngine::kVerticalOnRight:
native_scrollbar_extra.orientation =
ui::NativeTheme::ScrollbarOrientation::kVerticalOnRight;
break;
case WebThemeEngine::kVerticalOnLeft:
native_scrollbar_extra.orientation =
ui::NativeTheme::ScrollbarOrientation::kVerticalOnLeft;
break;
case WebThemeEngine::kHorizontal:
native_scrollbar_extra.orientation =
ui::NativeTheme::ScrollbarOrientation::kHorizontal;
break;
}
ui::NativeTheme::GetInstanceForNativeUi()->Paint(
canvas, color_provider, NativeThemePart(part), NativeThemeState(state),
rect, ui::NativeTheme::ExtraParams(native_scrollbar_extra),
NativeColorScheme(color_scheme));
}
} // namespace blink
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