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// Copyright 2018 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_BROWSER_SWITCHER_ALTERNATIVE_BROWSER_DRIVER_H_
#define CHROME_BROWSER_BROWSER_SWITCHER_ALTERNATIVE_BROWSER_DRIVER_H_
#include <string>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "build/build_config.h"
class GURL;
namespace browser_switcher {
class BrowserSwitcherPrefs;
// Used for UMA metrics, so do NOT change the order and the numbers. If you want
// to add a new type, only append/increment.
enum class BrowserType {
kUnknown = 0,
kIE = 1,
kFirefox = 2,
kOpera = 3,
kSafari = 4,
kChrome = 5,
kEdge = 6,
kMaxValue = kEdge,
};
// Interface for a helper class that does I/O operations for an
// |AlternativeBrowserLauncher|.
//
// - Reading from the Windows Registry
// - Communicating with an external process using the DDE protocol
// - Launching an external process
class AlternativeBrowserDriver {
public:
using LaunchCallback = base::OnceCallback<void(bool success)>;
virtual ~AlternativeBrowserDriver();
// Tries to launch |browser| at the specified URL, using whatever
// method is most appropriate.
virtual void TryLaunch(const GURL& url, LaunchCallback cb) = 0;
// Returns the localized string for the name of the alternative browser, if it
// was auto-detected. If the name couldn't be auto-detected, returns an empty
// string.
virtual std::string GetBrowserName() const = 0;
// Returns the type of browser as an enum, if it was auto-detected. Otherwise,
// returns |BrowserType::kUnknown|.
virtual BrowserType GetBrowserType() const = 0;
};
// Default concrete implementation for |AlternativeBrowserDriver|. Uses a
// platform-specific method to locate and launch the appropriate browser.
class AlternativeBrowserDriverImpl : public AlternativeBrowserDriver {
public:
explicit AlternativeBrowserDriverImpl(const BrowserSwitcherPrefs* prefs);
~AlternativeBrowserDriverImpl() override;
AlternativeBrowserDriverImpl(const AlternativeBrowserDriverImpl&) = delete;
AlternativeBrowserDriverImpl& operator=(const AlternativeBrowserDriverImpl&) =
delete;
// AlternativeBrowserDriver
void TryLaunch(const GURL& url, LaunchCallback cb) override;
std::string GetBrowserName() const override;
BrowserType GetBrowserType() const override;
// Create the CommandLine object that would be used to launch an external
// process.
base::CommandLine CreateCommandLine(const GURL& url);
private:
using StringType = base::FilePath::StringType;
const raw_ptr<const BrowserSwitcherPrefs> prefs_;
};
} // namespace browser_switcher
#endif // CHROME_BROWSER_BROWSER_SWITCHER_ALTERNATIVE_BROWSER_DRIVER_H_
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