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// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#ifndef CEF_INCLUDE_CEF_BROWSER_PROCESS_HANDLER_H_
#define CEF_INCLUDE_CEF_BROWSER_PROCESS_HANDLER_H_
#pragma once
#include "include/cef_base.h"
#include "include/cef_client.h"
#include "include/cef_command_line.h"
#include "include/cef_preference.h"
#include "include/cef_request_context_handler.h"
#include "include/cef_values.h"
///
/// Class used to implement browser process callbacks. The methods of this class
/// will be called on the browser process main thread unless otherwise
/// indicated.
///
/*--cef(source=client,no_debugct_check)--*/
class CefBrowserProcessHandler : public virtual CefBaseRefCounted {
public:
///
/// Provides an opportunity to register custom preferences prior to
/// global and request context initialization.
///
/// If |type| is CEF_PREFERENCES_TYPE_GLOBAL the registered preferences can be
/// accessed via CefPreferenceManager::GetGlobalPreferences after
/// OnContextInitialized is called. Global preferences are registered a single
/// time at application startup. See related cef_settings_t.cache_path
/// configuration.
///
/// If |type| is CEF_PREFERENCES_TYPE_REQUEST_CONTEXT the preferences can be
/// accessed via the CefRequestContext after
/// CefRequestContextHandler::OnRequestContextInitialized is called. Request
/// context preferences are registered each time a new CefRequestContext is
/// created. It is intended but not required that all request contexts have
/// the same registered preferences. See related
/// cef_request_context_settings_t.cache_path configuration.
///
/// Do not keep a reference to the |registrar| object. This method is called
/// on the browser process UI thread.
///
/*--cef()--*/
virtual void OnRegisterCustomPreferences(
cef_preferences_type_t type,
CefRawPtr<CefPreferenceRegistrar> registrar) {}
///
/// Called on the browser process UI thread immediately after the CEF context
/// has been initialized.
///
/*--cef()--*/
virtual void OnContextInitialized() {}
///
/// Called before a child process is launched. Will be called on the browser
/// process UI thread when launching a render process and on the browser
/// process IO thread when launching a GPU process. Provides an opportunity to
/// modify the child process command line. Do not keep a reference to
/// |command_line| outside of this method.
///
/*--cef()--*/
virtual void OnBeforeChildProcessLaunch(
CefRefPtr<CefCommandLine> command_line) {}
///
/// Implement this method to provide app-specific behavior when an already
/// running app is relaunched with the same CefSettings.root_cache_path value.
/// For example, activate an existing app window or create a new app window.
/// |command_line| will be read-only. Do not keep a reference to
/// |command_line| outside of this method. Return true if the relaunch is
/// handled or false for default relaunch behavior. Default behavior will
/// create a new default styled Chrome window.
///
/// To avoid cache corruption only a single app instance is allowed to run for
/// a given CefSettings.root_cache_path value. On relaunch the app checks a
/// process singleton lock and then forwards the new launch arguments to the
/// already running app process before exiting early. Client apps should
/// therefore check the CefInitialize() return value for early exit before
/// proceeding.
///
/// This method will be called on the browser process UI thread.
///
/*--cef(optional_param=current_directory)--*/
virtual bool OnAlreadyRunningAppRelaunch(
CefRefPtr<CefCommandLine> command_line,
const CefString& current_directory) {
return false;
}
///
/// Called from any thread when work has been scheduled for the browser
/// process main (UI) thread. This callback is used in combination with
/// cef_settings_t.external_message_pump and CefDoMessageLoopWork() in cases
/// where the CEF message loop must be integrated into an existing application
/// message loop (see additional comments and warnings on
/// CefDoMessageLoopWork). This callback should schedule a
/// CefDoMessageLoopWork() call to happen on the main (UI) thread. |delay_ms|
/// is the requested delay in milliseconds. If |delay_ms| is <= 0 then the
/// call should happen reasonably soon. If |delay_ms| is > 0 then the call
/// should be scheduled to happen after the specified delay and any currently
/// pending scheduled call should be cancelled.
///
/*--cef()--*/
virtual void OnScheduleMessagePumpWork(int64_t delay_ms) {}
///
/// Return the default client for use with a newly created browser window
/// (CefBrowser object). If null is returned the CefBrowser will be unmanaged
/// (no callbacks will be executed for that CefBrowser) and application
/// shutdown will be blocked until the browser window is closed manually. This
/// method is currently only used with Chrome style when creating new browser
/// windows via Chrome UI.
///
/*--cef()--*/
virtual CefRefPtr<CefClient> GetDefaultClient() { return nullptr; }
///
/// Return the default handler for use with a new user or incognito profile
/// (CefRequestContext object). If null is returned the CefRequestContext will
/// be unmanaged (no callbacks will be executed for that CefRequestContext).
/// This method is currently only used with Chrome style when creating new
/// browser windows via Chrome UI.
///
/*--cef()--*/
virtual CefRefPtr<CefRequestContextHandler>
GetDefaultRequestContextHandler() {
return nullptr;
}
};
#endif // CEF_INCLUDE_CEF_BROWSER_PROCESS_HANDLER_H_