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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_ContentProcessManager_h
#define mozilla_dom_ContentProcessManager_h
#include "mozilla/StaticPtr.h"
#include "mozilla/dom/TabContext.h"
#include "mozilla/dom/ipc/IdType.h"
#include "nsTArray.h"
#include "nsTHashMap.h"
namespace mozilla::dom {
class ContentParent;
class ContentProcessManager final {
public:
static ContentProcessManager* GetSingleton();
MOZ_COUNTED_DTOR(ContentProcessManager);
/**
* Add a new content process into the map.
*/
void AddContentProcess(ContentParent* aChildCp);
/**
* Remove the content process by id.
*/
void RemoveContentProcess(const ContentParentId& aChildCpId);
/**
* Return the ContentParent pointer by id.
*/
ContentParent* GetContentProcessById(const ContentParentId& aChildCpId);
/**
* Add a new browser parent into the map.
*/
bool RegisterRemoteFrame(BrowserParent* aChildBp);
/**
* Remove the browser parent by the given tab id.
*/
void UnregisterRemoteFrame(const TabId& aChildTabId);
/**
* Get the ContentParentId of the parent of the given tab id.
*/
ContentParentId GetTabProcessId(const TabId& aChildTabId);
/**
* Get the number of BrowserParents managed by the givent content process.
* Return 0 when ContentParent couldn't be found via aChildCpId.
*/
uint32_t GetBrowserParentCountByProcessId(const ContentParentId& aChildCpId);
/**
* Get the BrowserParent by the given content process and tab id.
* Return nullptr when BrowserParent couldn't be found via aChildCpId
* and aChildTabId.
*/
already_AddRefed<BrowserParent> GetBrowserParentByProcessAndTabId(
const ContentParentId& aChildCpId, const TabId& aChildTabId);
/**
* Get the BrowserParent on top level by the given content process and tab id.
*
* This function returns the BrowserParent directly within a BrowserHost,
* called top-level BrowserParent here, by given aChildCpId and aChildTabId.
* The given aChildCpId and aChildTabId are related to a content process
* and a tab respectively.
*/
already_AddRefed<BrowserParent> GetTopLevelBrowserParentByProcessAndTabId(
const ContentParentId& aChildCpId, const TabId& aChildTabId);
private:
static StaticAutoPtr<ContentProcessManager> sSingleton;
nsTHashMap<nsUint64HashKey, ContentParent*> mContentParentMap;
nsTHashMap<nsUint64HashKey, BrowserParent*> mBrowserParentMap;
MOZ_COUNTED_DEFAULT_CTOR(ContentProcessManager);
};
} // namespace mozilla::dom
#endif // mozilla_dom_ContentProcessManager_h
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