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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.
#ifndef CHROME_BROWSER_UI_VIEWS_TABS_TAB_WIDTH_CONSTRAINTS_H_
#define CHROME_BROWSER_UI_VIEWS_TABS_TAB_WIDTH_CONSTRAINTS_H_
#include "chrome/browser/ui/views/tabs/tab_layout_state.h"
#include "chrome/browser/ui/views/tabs/tab_strip_layout_types.h"
// Provides width information for a single tab during layout.
class TabWidthConstraints {
public:
TabWidthConstraints(const TabLayoutState& state,
const TabSizeInfo& size_info);
// The smallest width this tab should ever have.
float GetMinimumWidth() const;
// The width this tab should have at the crossover point between the
// tabstrip's two layout domains. Above this width, inactive tabs have the
// same width as active tabs. Below this width, inactive tabs are smaller
// than active tabs.
float GetLayoutCrossoverWidth() const;
// The width this tab would like to have, if space is available.
float GetPreferredWidth() const;
const TabLayoutState get_state() const { return state_; }
private:
// All widths are affected by pinnedness and activeness in the same way.
float TransformForPinnednessAndOpenness(float width) const;
TabLayoutState state_;
TabSizeInfo size_info_;
};
#endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_WIDTH_CONSTRAINTS_H_
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