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// Copyright 2020 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_LOCATION_BAR_OMNIBOX_CHIP_BUTTON_H_
#define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_OMNIBOX_CHIP_BUTTON_H_
#include "base/check_is_test.h"
#include "chrome/browser/ui/views/location_bar/omnibox_chip_theme.h"
#include "ui/base/interaction/element_tracker.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/base/models/image_model.h"
#include "ui/gfx/animation/slide_animation.h"
#include "ui/gfx/vector_icon_types.h"
#include "ui/views/controls/button/md_text_button.h"
DECLARE_CUSTOM_ELEMENT_EVENT_TYPE(kOmniboxChipButtonExpanded);
// UI component for chip button located in the omnibox. A button with an icon
// and text, with rounded corners.
class OmniboxChipButton : public views::MdTextButton {
METADATA_HEADER(OmniboxChipButton, views::MdTextButton)
public:
DECLARE_CLASS_ELEMENT_IDENTIFIER_VALUE(kChipElementId);
explicit OmniboxChipButton(PressedCallback callback = PressedCallback());
OmniboxChipButton(const OmniboxChipButton& button) = delete;
OmniboxChipButton& operator=(const OmniboxChipButton& button) = delete;
~OmniboxChipButton() override;
class Observer : public base::CheckedObserver {
public:
virtual void OnChipVisibilityChanged(bool is_visible) {}
};
void VisibilityChanged(views::View* starting_from, bool is_visible) override;
void AnimateCollapse(base::TimeDelta duration);
void AnimateExpand(base::TimeDelta duration);
void ResetAnimation(double value = 0);
bool is_fully_collapsed() const { return fully_collapsed_; }
// views::AnimationDelegateViews:
void AnimationEnded(const gfx::Animation* animation) override;
void AnimationProgressed(const gfx::Animation* animation) override;
// views::MdTextButton:
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
void OnThemeChanged() override;
void UpdateBackgroundColor() override;
// Customize the button.
void SetTheme(OmniboxChipTheme theme);
void SetIcon(const gfx::VectorIcon& icon);
OmniboxChipTheme GetOmniboxChipTheme() const { return theme_; }
// Add/remove observer.
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
protected:
// The following virtual functions are used for the non-error state permission
// chips (default/neutral states). For any other changes to the look and feel
// of the chips, consider subclassing and overriding as needed.
virtual ui::ImageModel GetIconImageModel() const;
virtual ui::ColorId GetForegroundColorId() const;
virtual ui::ColorId GetBackgroundColorId() const;
// Updates the icon, and then updates text, icon, and background colors from
// the theme.
void UpdateIconAndColors();
private:
// Performs a full animation from 0 to 1, ending up at the preferred size of
// the chip.
void ForceAnimateExpand();
// Performs a full collapse from 1 to 0, ending up at base_width_ + fixed
// width.
void ForceAnimateCollapse();
void OnAnimationValueMaybeChanged();
const gfx::VectorIcon& GetIcon() const;
int GetIconSize() const;
// An animation used for expanding and collapsing the chip.
std::unique_ptr<gfx::SlideAnimation> animation_;
OmniboxChipTheme theme_ = OmniboxChipTheme::kLowVisibility;
// If chip is collapsed. In the collapsed state, only an icon is visible,
// without text.
bool fully_collapsed_ = false;
raw_ptr<const gfx::VectorIcon> icon_ = &gfx::VectorIcon::EmptyIcon();
base::ObserverList<Observer> observers_;
};
#endif // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_OMNIBOX_CHIP_BUTTON_H_
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