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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/style/style_util.h"
#include "ash/style/ash_color_provider.h"
#include "ash/style/color_util.h"
#include "ash/style/dark_light_mode_controller_impl.h"
#include "ash/style/system_shadow.h"
#include "ash/style/typography.h"
#include "ui/color/color_id.h"
#include "ui/color/color_provider.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/font_list.h"
#include "ui/views/animation/flood_fill_ink_drop_ripple.h"
#include "ui/views/animation/ink_drop.h"
#include "ui/views/animation/ink_drop_highlight.h"
#include "ui/views/animation/ink_drop_host.h"
#include "ui/views/background.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/controls/focus_ring.h"
#include "ui/views/controls/highlight_path_generator.h"
#include "ui/views/corewm/tooltip_view_aura.h"
namespace ash {
namespace {
constexpr int kTooltipRoundedCornerRadius = 6;
constexpr gfx::Insets kTooltipBorderInset = gfx::Insets::VH(5, 8);
constexpr int kTooltipMinLineHeight = 18;
constexpr int kTooltipMaxLines = 3;
// A themed fully rounded rect background whose corner radius equals to the half
// of the minimum dimension of its view's local bounds.
class ThemedFullyRoundedRectBackground : public views::Background {
public:
explicit ThemedFullyRoundedRectBackground(ui::ColorId color_id) {
SetColor(color_id);
}
ThemedFullyRoundedRectBackground(const ThemedFullyRoundedRectBackground&) =
delete;
ThemedFullyRoundedRectBackground& operator=(
const ThemedFullyRoundedRectBackground&) = delete;
~ThemedFullyRoundedRectBackground() override = default;
// views::Background:
void OnViewThemeChanged(views::View* view) override {
view->SchedulePaint();
}
void Paint(gfx::Canvas* canvas, views::View* view) const override {
// Draw a fully rounded rect filling in the view's local bounds.
cc::PaintFlags paint;
paint.setAntiAlias(true);
SkColor resolved_color = color().ResolveToSkColor(view->GetColorProvider());
if (!view->GetEnabled()) {
resolved_color = ColorUtil::GetDisabledColor(resolved_color);
}
paint.setColor(resolved_color);
const gfx::Rect bounds = view->GetLocalBounds();
// Set the rounded corner radius to the half of the minimum dimension of
// local bounds.
const int rounded_corner_radius =
std::min(bounds.width(), bounds.height()) / 2;
canvas->DrawRoundRect(bounds, rounded_corner_radius, paint);
}
};
// A `HighlightPathGenerator` that uses caller-supplied rounded rect corners.
class RoundedCornerHighlightPathGenerator
: public views::HighlightPathGenerator {
public:
explicit RoundedCornerHighlightPathGenerator(
const gfx::RoundedCornersF& corners)
: corners_(corners) {}
RoundedCornerHighlightPathGenerator(
const RoundedCornerHighlightPathGenerator&) = delete;
RoundedCornerHighlightPathGenerator& operator=(
const RoundedCornerHighlightPathGenerator&) = delete;
// views::HighlightPathGenerator:
std::optional<gfx::RRectF> GetRoundRect(const gfx::RectF& rect) override {
return gfx::RRectF(rect, corners_);
}
private:
// The user-supplied rounded rect corners.
const gfx::RoundedCornersF corners_;
};
} // namespace
// static
float StyleUtil::GetInkDropOpacity() {
return DarkLightModeControllerImpl::Get()->IsDarkModeEnabled()
? kDarkInkDropOpacity
: kLightInkDropOpacity;
}
// static
std::unique_ptr<views::InkDrop> StyleUtil::CreateInkDrop(
views::Button* host,
bool highlight_on_hover,
bool highlight_on_focus) {
return views::InkDrop::CreateInkDropForFloodFillRipple(
views::InkDrop::Get(host), highlight_on_hover, highlight_on_focus);
}
// static
std::unique_ptr<views::InkDropRipple> StyleUtil::CreateInkDropRipple(
const gfx::Insets& insets,
const views::View* host,
SkColor background_color) {
const std::pair<SkColor, float> base_color_and_opacity =
AshColorProvider::Get()->GetInkDropBaseColorAndOpacity(background_color);
return std::make_unique<views::FloodFillInkDropRipple>(
const_cast<views::InkDropHost*>(views::InkDrop::Get(host)), host->size(),
insets, views::InkDrop::Get(host)->GetInkDropCenterBasedOnLastEvent(),
base_color_and_opacity.first, base_color_and_opacity.second);
}
// static
std::unique_ptr<views::InkDropHighlight> StyleUtil::CreateInkDropHighlight(
const views::View* host,
SkColor background_color) {
const std::pair<SkColor, float> base_color_and_opacity =
AshColorProvider::Get()->GetInkDropBaseColorAndOpacity(background_color);
auto highlight = std::make_unique<views::InkDropHighlight>(
gfx::SizeF(host->size()), base_color_and_opacity.first);
highlight->set_visible_opacity(base_color_and_opacity.second);
return highlight;
}
// static
void StyleUtil::SetRippleParams(views::View* host,
const gfx::Insets& insets,
SkColor background_color) {
views::InkDrop::Get(host)->SetCreateRippleCallback(base::BindRepeating(
&CreateInkDropRipple, insets, host, background_color));
}
// static
void StyleUtil::SetUpInkDropForButton(views::Button* button,
const gfx::Insets& ripple_insets,
bool highlight_on_hover,
bool highlight_on_focus,
SkColor background_color) {
SetUpFocusRingForView(button);
views::InkDropHost* const ink_drop = views::InkDrop::Get(button);
ink_drop->SetMode(views::InkDropHost::InkDropMode::ON);
button->SetHasInkDropActionOnClick(true);
ink_drop->SetCreateInkDropCallback(base::BindRepeating(
&CreateInkDrop, button, highlight_on_hover, highlight_on_focus));
ink_drop->SetCreateRippleCallback(base::BindRepeating(
&CreateInkDropRipple, ripple_insets, button, background_color));
ink_drop->SetCreateHighlightCallback(
base::BindRepeating(&CreateInkDropHighlight, button, background_color));
}
// static
void StyleUtil::ConfigureInkDropAttributes(views::View* view,
uint32_t ripple_config_attributes,
SkColor background_color) {
const std::pair<SkColor, float> base_color_and_opacity =
AshColorProvider::Get()->GetInkDropBaseColorAndOpacity(background_color);
auto* host = views::InkDrop::Get(view);
if (ripple_config_attributes & kBaseColor)
host->SetBaseColor(base_color_and_opacity.first);
if (ripple_config_attributes & kInkDropOpacity)
host->SetVisibleOpacity(base_color_and_opacity.second);
if (ripple_config_attributes & kHighlightOpacity)
host->SetHighlightOpacity(base_color_and_opacity.second);
}
// static
views::FocusRing* StyleUtil::SetUpFocusRingForView(
views::View* view,
std::optional<int> halo_inset) {
DCHECK(view);
views::FocusRing::Install(view);
views::FocusRing* focus_ring = views::FocusRing::Get(view);
focus_ring->SetOutsetFocusRingDisabled(true);
focus_ring->SetColorId(ui::kColorAshFocusRing);
if (halo_inset)
focus_ring->SetHaloInset(*halo_inset);
return focus_ring;
}
// static
void StyleUtil::InstallRoundedCornerHighlightPathGenerator(
views::View* view,
const gfx::RoundedCornersF& corners) {
views::HighlightPathGenerator::Install(
view, std::make_unique<RoundedCornerHighlightPathGenerator>(corners));
}
// static
std::unique_ptr<views::Background>
StyleUtil::CreateThemedFullyRoundedRectBackground(ui::ColorId color_id) {
return std::make_unique<ThemedFullyRoundedRectBackground>(color_id);
}
// static
std::unique_ptr<views::corewm::TooltipViewAura>
StyleUtil::CreateAshStyleTooltipView() {
auto tooltip_view = std::make_unique<views::corewm::TooltipViewAura>();
// Apply ash style background, border, and font.
tooltip_view->SetBackground(views::CreateRoundedRectBackground(
ui::kColorTooltipBackground, kTooltipRoundedCornerRadius));
tooltip_view->SetBorder(views::CreateEmptyBorder(kTooltipBorderInset));
tooltip_view->SetFontList(TypographyProvider::Get()->ResolveTypographyToken(
TypographyToken::kCrosAnnotation1));
tooltip_view->SetMinLineHeight(kTooltipMinLineHeight);
tooltip_view->SetElideBehavior(gfx::ElideBehavior::ELIDE_TAIL);
tooltip_view->SetMaxLines(kTooltipMaxLines);
return tooltip_view;
}
// static
ui::Shadow::ElevationToColorsMap StyleUtil::CreateShadowElevationToColorsMap(
const ui::ColorProvider* color_provider) {
ui::Shadow::ElevationToColorsMap colors_map;
colors_map[SystemShadow::GetElevationFromType(
SystemShadow::Type::kElevation4)] =
std::make_pair(
color_provider->GetColor(ui::kColorShadowValueKeyShadowElevationFour),
color_provider->GetColor(
ui::kColorShadowValueAmbientShadowElevationFour));
colors_map[SystemShadow::GetElevationFromType(
SystemShadow::Type::kElevation12)] =
std::make_pair(color_provider->GetColor(
ui::kColorShadowValueKeyShadowElevationTwelve),
color_provider->GetColor(
ui::kColorShadowValueAmbientShadowElevationTwelve));
colors_map[SystemShadow::GetElevationFromType(
SystemShadow::Type::kElevation24)] =
std::make_pair(
color_provider->GetColor(
ui::kColorShadowValueKeyShadowElevationTwentyFour),
color_provider->GetColor(
ui::kColorShadowValueAmbientShadowElevationTwentyFour));
return colors_map;
}
} // namespace ash
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