blob: 6327526fff9ffa05959df543a2441ffc6df83134 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include "base/macros.h"
#include "chrome/browser/ui/tabs/tab_utils.h"
#include "ui/views/controls/image_view.h"
class Tab;
namespace gfx {
class Animation;
class AnimationDelegate;
} // namespace gfx
// This is an ImageView subclass that serves as an indicator of various states,
// primarily media playing/recording, but also device connectivity. It is meant
// to only be used as a child view of Tab.
class AlertIndicator : public views::ImageView {
explicit AlertIndicator(Tab* parent_tab);
~AlertIndicator() override;
// views::ImageView:
void OnPaint(gfx::Canvas* canvas) override;
// Returns the current TabAlertState except, while the indicator image is
// fading out, returns the prior TabAlertState.
TabAlertState showing_alert_state() const { return showing_alert_state_; }
// Calls ResetImages() and starts fade animations as appropriate.
void TransitionToAlertState(TabAlertState next_state);
// Called when the parent tab's button color changes. Determines whether
// ResetImages() needs to be called.
void OnParentTabButtonColorChanged();
View* GetTooltipHandlerForPoint(const gfx::Point& point) override;
friend class AlertIndicatorTest;
friend class TabTest;
class FadeAnimationDelegate;
// Resets the images to display on the button to reflect |state| and the
// parent tab's button color. Should be called when either of these changes.
void ResetImage(TabAlertState state);
Tab* const parent_tab_;
TabAlertState alert_state_;
std::unique_ptr<gfx::AnimationDelegate> fade_animation_delegate_;
std::unique_ptr<gfx::Animation> fade_animation_;
TabAlertState showing_alert_state_;