// Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights

// reserved. Use of this source code is governed by a BSD-style license that

// can be found in the LICENSE file.

package org.cef.handler;

import org.cef.CefApp;

import org.cef.CefApp.CefAppState;

import org.cef.callback.CefCommandLine;

import org.cef.callback.CefSchemeRegistrar;

/**

* An abstract adapter class for managing app handler events.

* The methods in this class are using a default implementation.

* This class exists as convenience for creating handler objects.

*/

public abstract class CefAppHandlerAdapter implements CefAppHandler {

private String[] args_;

public CefAppHandlerAdapter(String[] args) {

args_ = args;

}

@Override

public void onBeforeCommandLineProcessing(String process_type, CefCommandLine command_line) {

if (process_type.isEmpty() && args_ != null) {

// Forward switches and arguments from Java to Cef

boolean parseSwitchesDone = false;

for (String arg : args_) {

if (parseSwitchesDone || arg.length() < 2) {

command_line.appendArgument(arg);

continue;

}

// Arguments with '--', '-' and, on Windows, '/' prefixes are considered switches.

int switchCnt = arg.startsWith("--") ? 2

: arg.startsWith("/") ? 1

: arg.startsWith("-") ? 1

: 0;

switch (switchCnt) {

case 2:

// An argument of "--" will terminate switch parsing with all subsequent

// tokens

if (arg.length() == 2) {

parseSwitchesDone = true;

continue;

}

// FALL THRU

case 1: {

// Switches can optionally have a value specified using the '=' delimiter

// (e.g. "-switch=value").

String switchStr = arg.substring(switchCnt);

int index = switchStr.indexOf('=');

if (index > 0) {

command_line.appendSwitchWithValue(

switchStr.substring(0, index), switchStr.substring(index + 1));

} else {

command_line.appendSwitch(switchStr);

}

break;

}

case 0:

command_line.appendArgument(arg);

break;

}

}

}

}

@Override

public boolean onBeforeTerminate() {

// The default implementation does nothing

return false;

}

@Override

public void stateHasChanged(CefAppState state) {

// The default implementation does nothing

}

@Override

public void onRegisterCustomSchemes(CefSchemeRegistrar registrar) {

// The default implementation does nothing

}

@Override

public void onContextInitialized() {

// The default implementation does nothing

}

@Override

public void onScheduleMessagePumpWork(long delay_ms) {

CefApp.getInstance().doMessageLoopWork(delay_ms);

}

@Override

public boolean onAlreadyRunningAppRelaunch(

CefCommandLine command_line, String current_directory) {

// The default implementation does nothing

return false;

}

}