1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright 2018 The Chromium Authors
// 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
|
