content/public/android/java/src/org/chromium/content/browser/ChildProcessCreationParams.java

// Copyright 2016 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.

package org.chromium.content.browser;

import android.content.Intent;

import org.chromium.base.library_loader.LibraryProcessType;

/**
 * Allows specifying the package name for looking up child services
 * configuration and classes into (if it differs from the application
 * package name, like in the case of Android WebView). Also allows
 * specifying additional child service binging flags.
 */
public class ChildProcessCreationParams {
    private final String mPackageName;
    private final int mExtraBindFlags;
    private final int mLibraryProcessType;
    private static final String EXTRA_LIBRARY_PROCESS_TYPE =
            "org.chromium.content.common.child_service_params.library_process_type";

    private static volatile ChildProcessCreationParams sChildProcessCreationParams;

    public static void set(ChildProcessCreationParams params) {
        sChildProcessCreationParams = params;
    }

    public static ChildProcessCreationParams get()  {
        return sChildProcessCreationParams;
    }

    public ChildProcessCreationParams(String packageName, int extraBindFlags,
            int libraryProcessType) {
        mPackageName = packageName;
        mExtraBindFlags = extraBindFlags;
        mLibraryProcessType = libraryProcessType;
    }

    public ChildProcessCreationParams copy() {
        return new ChildProcessCreationParams(mPackageName, mExtraBindFlags, mLibraryProcessType);
    }

    public String getPackageName() {
        return mPackageName;
    }

    public int getExtraBindFlags() {
        return mExtraBindFlags;
    }

    /**
     * Adds required extra flags to the given child service binding flags and returns them.
     * Does not modify the state of the ChildProcessCreationParams instance.
     *
     * @param bindFlags Source bind flags to modify.
     * @return Bind flags with extra flags added.
     */
    public int addExtraBindFlags(int bindFlags) {
        return bindFlags | mExtraBindFlags;
    }

    public void addIntentExtras(Intent intent) {
        intent.putExtra(EXTRA_LIBRARY_PROCESS_TYPE, mLibraryProcessType);
    }

    public static int getLibraryProcessType(Intent intent) {
        return intent.getIntExtra(EXTRA_LIBRARY_PROCESS_TYPE,
                LibraryProcessType.PROCESS_CHILD);
    }
}