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// Copyright 2014 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_android.h"
#include <variant>
#include "base/notreached.h"
#include "base/system/sys_info.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/blink/public/platform/web_theme_engine.h"
#include "third_party/blink/renderer/platform/theme/web_theme_engine_conversions.h"
#include "third_party/blink/renderer/platform/theme/web_theme_engine_helper.h"
#include "ui/native_theme/native_theme.h"
namespace blink {
static ui::NativeTheme::ExtraParams GetNativeThemeExtraParams(
WebThemeEngine::Part part,
WebThemeEngine::State state,
const WebThemeEngine::ExtraParams* extra_params) {
switch (part) {
case WebThemeEngine::kPartScrollbarHorizontalTrack:
case WebThemeEngine::kPartScrollbarVerticalTrack: {
// Android doesn't draw scrollbars.
NOTREACHED();
}
case WebThemeEngine::kPartCheckbox: {
ui::NativeTheme::ButtonExtraParams native_button;
const auto& button =
std::get<WebThemeEngine::ButtonExtraParams>(*extra_params);
native_button.checked = button.checked;
native_button.indeterminate = button.indeterminate;
native_button.zoom = button.zoom;
return ui::NativeTheme::ExtraParams(native_button);
}
case WebThemeEngine::kPartRadio: {
ui::NativeTheme::ButtonExtraParams native_button;
const auto& button =
std::get<WebThemeEngine::ButtonExtraParams>(*extra_params);
native_button.checked = button.checked;
return ui::NativeTheme::ExtraParams(native_button);
}
case WebThemeEngine::kPartButton: {
ui::NativeTheme::ButtonExtraParams native_button;
const auto& button =
std::get<WebThemeEngine::ButtonExtraParams>(*extra_params);
native_button.has_border = button.has_border;
// Native buttons have a different focus style.
native_button.is_focused = false;
native_button.background_color = button.background_color;
native_button.zoom = button.zoom;
return ui::NativeTheme::ExtraParams(native_button);
}
case WebThemeEngine::kPartTextField: {
ui::NativeTheme::TextFieldExtraParams native_text_field;
const auto& text_field =
std::get<WebThemeEngine::TextFieldExtraParams>(*extra_params);
native_text_field.is_text_area = text_field.is_text_area;
native_text_field.is_listbox = text_field.is_listbox;
native_text_field.background_color = text_field.background_color;
native_text_field.has_border = text_field.has_border;
native_text_field.auto_complete_active = text_field.auto_complete_active;
native_text_field.zoom = text_field.zoom;
return ui::NativeTheme::ExtraParams(native_text_field);
}
case WebThemeEngine::kPartMenuList: {
ui::NativeTheme::MenuListExtraParams native_menu_list;
const auto& menu_list =
std::get<WebThemeEngine::MenuListExtraParams>(*extra_params);
native_menu_list.has_border = menu_list.has_border;
native_menu_list.has_border_radius = menu_list.has_border_radius;
native_menu_list.arrow_x = menu_list.arrow_x;
native_menu_list.arrow_y = menu_list.arrow_y;
native_menu_list.arrow_size = menu_list.arrow_size;
// Need to explicit cast so we can assign enum to enum.
ui::NativeTheme::ArrowDirection dir =
ui::NativeTheme::ArrowDirection(menu_list.arrow_direction);
native_menu_list.arrow_direction = dir;
native_menu_list.arrow_color = menu_list.arrow_color;
native_menu_list.background_color = menu_list.background_color;
native_menu_list.zoom = menu_list.zoom;
return ui::NativeTheme::ExtraParams(native_menu_list);
}
case WebThemeEngine::kPartSliderTrack: {
ui::NativeTheme::SliderExtraParams native_slider_track;
const auto& slider_track =
std::get<WebThemeEngine::SliderExtraParams>(*extra_params);
native_slider_track.thumb_x = slider_track.thumb_x;
native_slider_track.thumb_y = slider_track.thumb_y;
native_slider_track.zoom = slider_track.zoom;
native_slider_track.right_to_left = slider_track.right_to_left;
native_slider_track.vertical = slider_track.vertical;
native_slider_track.in_drag = slider_track.in_drag;
return ui::NativeTheme::ExtraParams(native_slider_track);
}
case WebThemeEngine::kPartSliderThumb: {
ui::NativeTheme::SliderExtraParams native_slider_thumb;
const auto& slider_thumb =
std::get<WebThemeEngine::SliderExtraParams>(*extra_params);
native_slider_thumb.vertical = slider_thumb.vertical;
native_slider_thumb.in_drag = slider_thumb.in_drag;
return ui::NativeTheme::ExtraParams(native_slider_thumb);
}
case WebThemeEngine::kPartInnerSpinButton: {
ui::NativeTheme::InnerSpinButtonExtraParams native_inner_spin;
const auto& inner_spin =
std::get<WebThemeEngine::InnerSpinButtonExtraParams>(*extra_params);
native_inner_spin.spin_up = inner_spin.spin_up;
native_inner_spin.read_only = inner_spin.read_only;
// Need to explicit cast so we can assign enum to enum.
ui::NativeTheme::SpinArrowsDirection dir =
ui::NativeTheme::SpinArrowsDirection(
inner_spin.spin_arrows_direction);
native_inner_spin.spin_arrows_direction = dir;
return ui::NativeTheme::ExtraParams(native_inner_spin);
}
case WebThemeEngine::kPartProgressBar: {
ui::NativeTheme::ProgressBarExtraParams native_progress_bar;
const auto& progress_bar =
std::get<WebThemeEngine::ProgressBarExtraParams>(*extra_params);
native_progress_bar.determinate = progress_bar.determinate;
native_progress_bar.value_rect_x = progress_bar.value_rect_x;
native_progress_bar.value_rect_y = progress_bar.value_rect_y;
native_progress_bar.value_rect_width = progress_bar.value_rect_width;
native_progress_bar.value_rect_height = progress_bar.value_rect_height;
native_progress_bar.zoom = progress_bar.zoom;
native_progress_bar.is_horizontal = progress_bar.is_horizontal;
return ui::NativeTheme::ExtraParams(native_progress_bar);
}
default: {
ui::NativeTheme::ExtraParams native_theme_extra_params;
return native_theme_extra_params; // Parts that have no extra params get
// here.
}
}
}
WebThemeEngineAndroid::~WebThemeEngineAndroid() = default;
gfx::Size WebThemeEngineAndroid::GetSize(WebThemeEngine::Part part) {
switch (part) {
case WebThemeEngine::kPartScrollbarHorizontalThumb:
case WebThemeEngine::kPartScrollbarVerticalThumb: {
// Minimum length for scrollbar thumb is the scrollbar thickness.
ScrollbarStyle style;
GetOverlayScrollbarStyle(&style);
int scrollbarThickness = style.thumb_thickness + style.scrollbar_margin;
return gfx::Size(scrollbarThickness, scrollbarThickness);
}
default: {
ui::NativeTheme::ExtraParams extra;
return ui::NativeTheme::GetInstanceForWeb()->GetPartSize(
NativeThemePart(part), ui::NativeTheme::kNormal, extra);
}
}
}
void WebThemeEngineAndroid::GetOverlayScrollbarStyle(ScrollbarStyle* style) {
*style = WebThemeEngineHelper::AndroidScrollbarStyle();
}
void WebThemeEngineAndroid::Paint(
cc::PaintCanvas* canvas,
WebThemeEngine::Part part,
WebThemeEngine::State state,
const gfx::Rect& rect,
const WebThemeEngine::ExtraParams* extra_params,
blink::mojom::ColorScheme color_scheme,
bool in_forced_colors,
const ui::ColorProvider* color_provider,
const std::optional<SkColor>& accent_color) {
ui::NativeTheme::ExtraParams native_theme_extra_params =
GetNativeThemeExtraParams(part, state, extra_params);
// ColorProviders are not supported on android and there are no controls that
// require ColorProvider colors on the platform.
const ui::ColorProvider* color_provider_android = nullptr;
ui::NativeTheme::GetInstanceForWeb()->Paint(
canvas, color_provider_android, NativeThemePart(part),
NativeThemeState(state), rect, native_theme_extra_params,
NativeColorScheme(color_scheme), in_forced_colors, accent_color);
}
} // namespace blink
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