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
|
// 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.
#ifndef CHROME_BROWSER_COMPLEX_TASKS_TASK_TAB_HELPER_H_
#define CHROME_BROWSER_COMPLEX_TASKS_TASK_TAB_HELPER_H_
#include <map>
#include <unordered_map>
#include "base/containers/contains.h"
#include "build/build_config.h"
#include "components/sessions/content/navigation_task_id.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
namespace sessions {
class NavigationTaskId;
}
namespace tasks {
// This is a tab helper that collects navigation state information of a
// complex task.
class TaskTabHelper : public content::WebContentsObserver,
public content::WebContentsUserData<TaskTabHelper> {
public:
TaskTabHelper(const TaskTabHelper&) = delete;
TaskTabHelper& operator=(const TaskTabHelper&) = delete;
~TaskTabHelper() override;
// WebContentsObserver
void NavigationEntryCommitted(
const content::LoadCommittedDetails& load_details) override;
static sessions::NavigationTaskId* GetCurrentTaskId(
content::WebContents* web_contents);
const sessions::NavigationTaskId* get_task_id_for_navigation(
int nav_id) const {
if (!base::Contains(local_navigation_task_id_map_, nav_id))
return nullptr;
return &local_navigation_task_id_map_.find(nav_id)->second;
}
protected:
explicit TaskTabHelper(content::WebContents* web_contents);
private:
friend class content::WebContentsUserData<TaskTabHelper>;
void UpdateAndRecordTaskIds(
const content::LoadCommittedDetails& load_details);
int64_t GetParentTaskId();
int64_t GetParentRootTaskId();
std::unordered_map<int, sessions::NavigationTaskId>
local_navigation_task_id_map_;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
} // namespace tasks
#endif // CHROME_BROWSER_COMPLEX_TASKS_TASK_TAB_HELPER_H_
|
