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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
// Copyright 2017 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 "content/browser/devtools/devtools_target_registry.h"
#include "base/task_runner.h"
#include "base/threading/thread_checker.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_contents_observer.h"
namespace content {
namespace {
std::unique_ptr<const DevToolsTargetRegistry::TargetInfo> BuildTargetInfo(
RenderFrameHost* rfh) {
std::unique_ptr<DevToolsTargetRegistry::TargetInfo> info(
new DevToolsTargetRegistry::TargetInfo());
info->child_id = rfh->GetProcess()->GetID();
info->routing_id = rfh->GetRoutingID();
const FrameTreeNode* ftn =
static_cast<RenderFrameHostImpl*>(rfh)->frame_tree_node();
info->devtools_token = ftn->devtools_frame_token();
info->frame_tree_node_id = ftn->frame_tree_node_id();
// TODO(crbug.com/777516): this actually needs to return the nearest local
// root (or self). However, for now we keep the existing semantics of request
// matching in interceptor, which is intercepting all requests for given
// web contents, that tests (and potentially some clients) depend on.
// When those are fixed, the condition in the loop below should include
// !rfh->IsCrossProcessSubframe().
// Watch out for current (leaf) frame host being null
// when it's being destroyed.
while (!ftn->IsMainFrame()) {
ftn = ftn->parent();
rfh = ftn->current_frame_host();
}
info->devtools_target_id = ftn->devtools_frame_token();
return std::move(info);
}
} // namespace
class DevToolsTargetRegistry::Impl : public DevToolsTargetRegistry::Resolver {
public:
using TargetInfo = DevToolsTargetRegistry::TargetInfo;
const DevToolsTargetRegistry::TargetInfo* GetInfoByFrameTreeNodeId(
int frame_node_id) override {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
auto it = target_info_by_ftn_id_.find(frame_node_id);
return it != target_info_by_ftn_id_.end() ? it->second : nullptr;
}
const DevToolsTargetRegistry::TargetInfo* GetInfoByRenderFramePair(
int child_id,
int routing_id) override {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
auto it = target_info_by_render_frame_pair_.find(
std::make_pair(child_id, routing_id));
return it != target_info_by_render_frame_pair_.end() ? it->second.get()
: nullptr;
}
void Add(std::unique_ptr<const TargetInfo> info) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
if (info->frame_tree_node_id != -1) {
target_info_by_ftn_id_.insert(
std::make_pair(info->frame_tree_node_id, info.get()));
}
auto key = std::make_pair(info->child_id, info->routing_id);
target_info_by_render_frame_pair_.insert(
std::make_pair(key, std::move(info)));
}
void Remove(const TargetInfo& info) {
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
if (info.frame_tree_node_id != -1)
target_info_by_ftn_id_.erase(info.frame_tree_node_id);
target_info_by_render_frame_pair_.erase(
std::make_pair(info.child_id, info.routing_id));
}
void AddAll(std::vector<std::unique_ptr<const TargetInfo>> infos) {
for (auto& info : infos)
Add(std::move(info));
}
void RemoveAll(std::vector<std::unique_ptr<const TargetInfo>> infos) {
for (auto& info : infos)
Remove(*info);
}
void Update(std::unique_ptr<const TargetInfo> old_info,
std::unique_ptr<const TargetInfo> new_info) {
if (old_info)
Remove(*old_info);
if (new_info)
Add(std::move(new_info));
}
Impl() : weak_factory_(this) { DETACH_FROM_THREAD(thread_checker_); }
~Impl() override = default;
private:
friend class DevToolsTargetRegistry;
base::flat_map<std::pair<int, int>, std::unique_ptr<const TargetInfo>>
target_info_by_render_frame_pair_;
base::flat_map<int, const TargetInfo*> target_info_by_ftn_id_;
THREAD_CHECKER(thread_checker_);
base::WeakPtrFactory<DevToolsTargetRegistry::Impl> weak_factory_;
};
class DevToolsTargetRegistry::ContentsObserver : public ObserverBase,
public WebContentsObserver {
public:
ContentsObserver(WebContents* web_contents, DevToolsTargetRegistry* registry)
: WebContentsObserver(web_contents), registry_(registry) {}
private:
void RenderFrameHostChanged(RenderFrameHost* old_host,
RenderFrameHost* new_host) override {
std::unique_ptr<const TargetInfo> old_target;
if (old_host)
old_target = BuildTargetInfo(old_host);
std::unique_ptr<const TargetInfo> new_target = BuildTargetInfo(new_host);
registry_->impl_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&DevToolsTargetRegistry::Impl::Update, registry_->impl_,
std::move(old_target), std::move(new_target)));
}
void FrameDeleted(RenderFrameHost* render_frame_host) override {
registry_->impl_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&DevToolsTargetRegistry::Impl::Update, registry_->impl_,
BuildTargetInfo(render_frame_host), nullptr));
}
void WebContentsDestroyed() override {
NOTREACHED() << "DevToolsTarget Registry clients should be destroyed "
"before WebContents";
}
~ContentsObserver() override {
registry_->UnregisterWebContents(web_contents());
}
DevToolsTargetRegistry* registry_;
};
DevToolsTargetRegistry::RegistrationHandle
DevToolsTargetRegistry::RegisterWebContents(WebContents* web_contents) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
auto it = observers_.find(web_contents);
if (it != observers_.end())
return it->second;
scoped_refptr<ContentsObserver> observer =
new DevToolsTargetRegistry::ContentsObserver(web_contents, this);
observers_.insert(std::make_pair(web_contents, observer.get()));
std::vector<std::unique_ptr<const TargetInfo>> infos;
for (RenderFrameHost* render_frame_host : web_contents->GetAllFrames())
infos.push_back(BuildTargetInfo(render_frame_host));
impl_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&DevToolsTargetRegistry::Impl::AddAll, impl_,
std::move(infos)));
return observer;
}
std::unique_ptr<DevToolsTargetRegistry::Resolver>
DevToolsTargetRegistry::CreateResolver() {
DCHECK(!impl_);
auto impl = std::make_unique<Impl>();
impl_ = impl->weak_factory_.GetWeakPtr();
return std::move(impl);
}
void DevToolsTargetRegistry::UnregisterWebContents(WebContents* web_contents) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
size_t count = observers_.erase(web_contents);
DCHECK_NE(count, 0ul);
std::vector<std::unique_ptr<const TargetInfo>> infos;
for (RenderFrameHost* render_frame_host : web_contents->GetAllFrames())
infos.push_back(BuildTargetInfo(render_frame_host));
impl_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&DevToolsTargetRegistry::Impl::RemoveAll, impl_,
std::move(infos)));
}
DevToolsTargetRegistry::DevToolsTargetRegistry(
scoped_refptr<base::SequencedTaskRunner> impl_task_runner)
: impl_task_runner_(impl_task_runner) {}
DevToolsTargetRegistry::~DevToolsTargetRegistry() = default;
} // namespace content
|
