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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_QRCODE_GENERATOR_QRCODE_GENERATOR_BUBBLE_CONTROLLER_H_
#define CHROME_BROWSER_UI_QRCODE_GENERATOR_QRCODE_GENERATOR_BUBBLE_CONTROLLER_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "content/public/browser/web_contents_user_data.h"
class GURL;
class PrefChangeRegistrar;
namespace content {
class WebContents;
}
namespace qrcode_generator {
class QRCodeGeneratorBubbleView;
// Controller component of the QR Code Generator dialog bubble.
// Responsible for showing and hiding an owned bubble.
class QRCodeGeneratorBubbleController
: public content::WebContentsUserData<QRCodeGeneratorBubbleController> {
public:
QRCodeGeneratorBubbleController(const QRCodeGeneratorBubbleController&) =
delete;
QRCodeGeneratorBubbleController& operator=(
const QRCodeGeneratorBubbleController&) = delete;
~QRCodeGeneratorBubbleController() override;
// Returns whether the generator is available for a given page.
static bool IsGeneratorAvailable(const GURL& url);
static QRCodeGeneratorBubbleController* Get(
content::WebContents* web_contents);
// Displays the QR Code Generator bubble.
void ShowBubble(const GURL& url, bool show_back_button = false);
// Hides the QR Code Generator bubble.
void HideBubble();
bool IsBubbleShown() { return bubble_shown_; }
// Returns nullptr if no bubble is currently shown.
QRCodeGeneratorBubbleView* qrcode_generator_bubble_view() const;
base::OnceClosure GetOnBubbleClosedCallback();
base::OnceClosure GetOnBackButtonPressedCallback();
protected:
explicit QRCodeGeneratorBubbleController(content::WebContents* web_contents);
private:
friend class content::WebContentsUserData<QRCodeGeneratorBubbleController>;
// Handler for when the bubble is dismissed.
void OnBubbleClosed();
// Handler for when the back button is pressed.
void OnBackButtonPressed();
// Hides the bubble if the policy controlling the QR code generator is
// disabled.
void OnPolicyPrefChanged();
// When the bubble is visible, used for tracking changes to the policy
// controlling the QR code generator.
std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
// Will be nullptr if no bubble is currently shown.
raw_ptr<QRCodeGeneratorBubbleView> qrcode_generator_bubble_ = nullptr;
// True if the bubble is currently shown.
bool bubble_shown_ = false;
WEB_CONTENTS_USER_DATA_KEY_DECL();
base::WeakPtrFactory<QRCodeGeneratorBubbleController> weak_ptr_factory_{this};
};
} // namespace qrcode_generator
#endif // CHROME_BROWSER_UI_QRCODE_GENERATOR_QRCODE_GENERATOR_BUBBLE_CONTROLLER_H_
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