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- // Copyright 2018 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.
- #include "components/remote_cocoa/app_shim/ns_view_ids.h"
- #import <Cocoa/Cocoa.h>
- #include <map>
- #include <utility>
- #include "base/check.h"
- #include "base/no_destructor.h"
- namespace remote_cocoa {
- std::map<uint64_t, NSView*>& GetIdToNSViewMap() {
- static base::NoDestructor<std::map<uint64_t, NSView*>> instance;
- return *instance;
- }
- std::map<NSView*, uint64_t>& GetNSViewToIdMap() {
- static base::NoDestructor<std::map<NSView*, uint64_t>> instance;
- return *instance;
- }
- NSView* GetNSViewFromId(uint64_t ns_view_id) {
- auto& id_to_view_map = GetIdToNSViewMap();
- auto found = id_to_view_map.find(ns_view_id);
- if (found == id_to_view_map.end())
- return nil;
- return found->second;
- }
- uint64_t GetIdFromNSView(NSView* ns_view) {
- auto& view_to_id_map = GetNSViewToIdMap();
- auto found = view_to_id_map.find(ns_view);
- if (found == view_to_id_map.end())
- return 0;
- return found->second;
- }
- ScopedNSViewIdMapping::ScopedNSViewIdMapping(uint64_t ns_view_id, NSView* view)
- : ns_view_(view), ns_view_id_(ns_view_id) {
- DCHECK(ns_view_id_);
- {
- auto result = GetIdToNSViewMap().insert(std::make_pair(ns_view_id, view));
- DCHECK(result.second);
- }
- {
- auto result = GetNSViewToIdMap().insert(std::make_pair(view, ns_view_id));
- DCHECK(result.second);
- }
- }
- ScopedNSViewIdMapping::~ScopedNSViewIdMapping() {
- {
- auto found = GetIdToNSViewMap().find(ns_view_id_);
- DCHECK(found != GetIdToNSViewMap().end());
- GetIdToNSViewMap().erase(found);
- }
- {
- auto found = GetNSViewToIdMap().find(ns_view_);
- DCHECK(found != GetNSViewToIdMap().end());
- GetNSViewToIdMap().erase(found);
- }
- }
- } // namespace remote_cocoa
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