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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_LABEL_H_
#define UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_LABEL_H_
#include <optional>
#include <string_view>
#include "base/functional/bind.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/color/color_id.h"
#include "ui/color/color_variant.h"
#include "ui/views/controls/label.h"
#include "ui/views/views_export.h"
namespace views::internal {
// A Label subclass that can be disabled. This is only used internally for
// views::LabelButton.
class VIEWS_EXPORT LabelButtonLabel : public Label {
METADATA_HEADER(LabelButtonLabel, Label)
public:
LabelButtonLabel(std::u16string_view text, int text_context);
LabelButtonLabel(const LabelButtonLabel&) = delete;
LabelButtonLabel& operator=(const LabelButtonLabel&) = delete;
~LabelButtonLabel() override;
// Set an explicit disabled color. This will stop the Label responding to
// changes in the native theme for disabled colors.
void SetDisabledColor(ui::ColorVariant color);
std::optional<ui::ColorVariant> GetDisabledColor() const;
// Label:
void SetEnabledColor(ui::ColorVariant color) override;
std::optional<ui::ColorVariant> GetEnabledColor() const;
protected:
// Label:
void OnThemeChanged() override;
private:
void OnEnabledChanged();
void SetColorForEnableState();
std::optional<ui::ColorVariant> requested_enabled_color_;
std::optional<ui::ColorVariant> requested_disabled_color_;
base::CallbackListSubscription enabled_changed_subscription_ =
AddEnabledChangedCallback(
base::BindRepeating(&LabelButtonLabel::OnEnabledChanged,
base::Unretained(this)));
};
BEGIN_VIEW_BUILDER(VIEWS_EXPORT, LabelButtonLabel, Label)
VIEW_BUILDER_PROPERTY(std::optional<ui::ColorVariant>, EnabledColor)
VIEW_BUILDER_PROPERTY(std::optional<ui::ColorVariant>, DisabledColor)
END_VIEW_BUILDER
} // namespace views::internal
DEFINE_VIEW_BUILDER(VIEWS_EXPORT, internal::LabelButtonLabel)
#endif // UI_VIEWS_CONTROLS_BUTTON_LABEL_BUTTON_LABEL_H_
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