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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_GROUP_VIEWS_H_
#define CHROME_BROWSER_UI_VIEWS_TABS_TAB_GROUP_VIEWS_H_
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/memory/raw_ref.h"
#include "chrome/browser/ui/views/tabs/tab_slot_controller.h"
#include "components/tab_groups/tab_group_id.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/views/view.h"
class TabGroupHeader;
class TabGroupHighlight;
class TabGroupUnderline;
class TabStrip;
class TabGroupStyle;
// The manager of all views associated with a tab group. This handles visual
// calculations and updates. Painting is done in TabStrip.
class TabGroupViews {
public:
// Creates the various views representing a tab group and adds them to
// `container_view` and `drag_container_view` as children. Assumes these
// views are not destroyed before `this`.
TabGroupViews(views::View* container_view,
views::View* drag_container_view,
TabSlotController& tab_slot_controller,
const tab_groups::TabGroupId& group);
// Destroys the views added during the constructor.
~TabGroupViews();
tab_groups::TabGroupId group() const { return group_; }
TabGroupHeader* header() const { return header_; }
TabGroupHighlight* highlight() const { return highlight_; }
TabGroupUnderline* underline() const { return underline_; }
TabGroupUnderline* drag_underline() const { return drag_underline_; }
// Updates bounds of all elements not explicitly positioned by the tab strip.
// This currently includes both the underline and highlight.
void UpdateBounds();
// Updates the group title and color and ensures that all elements that might
// need repainting are repainted.
void OnGroupVisualsChanged();
// Returns the bounds of the entire group, including the header and all tabs.
gfx::Rect GetBounds() const;
// Returns the group color.
SkColor GetGroupColor() const;
// Finds the first and last tab or group header belonging to `group_` from the
// whole Tabstrip.
std::tuple<const views::View*, const views::View*>
GetLeadingTrailingGroupViews() const;
private:
const raw_ref<TabSlotController> tab_slot_controller_;
const tab_groups::TabGroupId group_;
raw_ptr<TabGroupHeader> header_;
raw_ptr<TabGroupHighlight> highlight_;
raw_ptr<TabGroupUnderline> underline_;
raw_ptr<TabGroupUnderline> drag_underline_;
std::unique_ptr<const TabGroupStyle> style_;
bool InTearDown() const;
// Finds the first and last tab or group header belonging to `group_`, only
// including views that are being dragged.
std::tuple<views::View*, views::View*> GetLeadingTrailingDraggedGroupViews()
const;
// Finds the first and last tab or group header belonging to `group_` within
// `children`.
std::tuple<views::View*, views::View*> GetLeadingTrailingGroupViews(
std::vector<raw_ptr<views::View, VectorExperimental>> children) const;
};
#endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_GROUP_VIEWS_H_
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