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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_SPLIT_TABS_BUTTON_H_
#define CHROME_BROWSER_UI_VIEWS_TOOLBAR_SPLIT_TABS_BUTTON_H_
#include <memory>
#include <optional>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "chrome/browser/ui/views/toolbar/toolbar_button.h"
#include "components/prefs/pref_member.h"
#include "ui/base/interaction/element_identifier.h"
class Browser;
class PinnedToolbarButtonStatusIndicator;
namespace ui {
class SimpleMenuModel;
}
namespace views {
class MenuRunner;
} // namespace views
// Pinnable toolbar button that allow users to create a split tab if the current
// tab is not in a split or alter the active split tab state.
class SplitTabsToolbarButton : public ToolbarButton,
public TabStripModelObserver {
METADATA_HEADER(SplitTabsToolbarButton, ToolbarButton)
public:
DECLARE_CLASS_ELEMENT_IDENTIFIER_VALUE(kUpdatePinStateMenu);
explicit SplitTabsToolbarButton(Browser* browser);
SplitTabsToolbarButton(const SplitTabsToolbarButton&) = delete;
SplitTabsToolbarButton& operator=(const SplitTabsToolbarButton&) = delete;
~SplitTabsToolbarButton() override;
// TabStripModelObserver implementation:
void OnTabStripModelChanged(
TabStripModel* tab_strip_model,
const TabStripModelChange& change,
const TabStripSelectionChange& selection) override;
void OnSplitTabChanged(const SplitTabChange& change) override;
// ToolbarButton override:
void Layout(PassKey) override;
void UpdateIcon() override;
const std::optional<ToolbarButton::VectorIcons>& GetIconsForTesting();
private:
bool IsActiveTabInSplit();
void ButtonPressed(const ui::Event& event);
void UpdateButtonVisibility();
void UpdateButtonIcon();
void UpdateStatusIndicator(bool show_status_indicator);
void UpdateAccessibilityRole(bool has_menu);
BooleanPrefMember pin_state_;
raw_ptr<Browser> browser_;
raw_ptr<PinnedToolbarButtonStatusIndicator> status_indicator_;
std::unique_ptr<ui::SimpleMenuModel> split_tab_menu_;
std::unique_ptr<views::MenuRunner> menu_runner_;
};
#endif // CHROME_BROWSER_UI_VIEWS_TOOLBAR_SPLIT_TABS_BUTTON_H_
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