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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COMPONENTS_SYNC_SESSIONS_TASK_TRACKER_H_ | 5 #ifndef COMPONENTS_SYNC_SESSIONS_TASK_TRACKER_H_ |
6 #define COMPONENTS_SYNC_SESSIONS_TASK_TRACKER_H_ | 6 #define COMPONENTS_SYNC_SESSIONS_TASK_TRACKER_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
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22 namespace sync_sessions { | 22 namespace sync_sessions { |
23 | 23 |
24 // Class to generate and manage task ids for navigations of a tab. For each | 24 // Class to generate and manage task ids for navigations of a tab. For each |
25 // current navigation of a tab, UpdateWithNavigation(int navigation_index, | 25 // current navigation of a tab, UpdateWithNavigation(int navigation_index, |
26 // ui::PageTransition transition) | 26 // ui::PageTransition transition) |
27 // needs to be called to update the object. | 27 // needs to be called to update the object. |
28 // | 28 // |
29 // TODO(shenchao): If the tab is restored, then the input navigation is not | 29 // TODO(shenchao): If the tab is restored, then the input navigation is not |
30 // necessarily the first navigation in this case. Need to fix it by initalizing | 30 // necessarily the first navigation in this case. Need to fix it by initalizing |
31 // the object with restored data. | 31 // the object with restored data. |
32 // TODO(shenchao): Support to track tasks cross tabs. | |
33 class TabTasks { | 32 class TabTasks { |
34 public: | 33 public: |
35 TabTasks(); | 34 TabTasks(); |
35 explicit TabTasks(const TabTasks* source_tab); | |
36 virtual ~TabTasks(); | 36 virtual ~TabTasks(); |
37 | 37 |
38 // Gets top-down task id list of ancestors and itself for | 38 // Gets top-down task id list of ancestors and itself for |
39 // |navigation_index|-th navigation of the tab. | 39 // |navigation_index|-th navigation of the tab. |
40 std::vector<int64_t> GetTaskIdsForNavigation(int navigation_index) const; | 40 std::vector<int64_t> GetTaskIdsForNavigation(int navigation_index) const; |
41 | 41 |
42 int GetNavigationsCount() const; | 42 int GetNavigationsCount() const; |
43 | 43 |
44 // Updates the current task of the tab, given current navigation index of the | 44 // Updates the current task of the tab, given current navigation index of the |
45 // tab as |navigation_index|, and its |transition|. | 45 // tab as |navigation_index|, and its |transition|. |
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60 struct TaskIdAndRoot { | 60 struct TaskIdAndRoot { |
61 // Root task index in task_ids_. Negative value means it's an invalid task | 61 // Root task index in task_ids_. Negative value means it's an invalid task |
62 // just for filling the task_ids_. | 62 // just for filling the task_ids_. |
63 int root_navigation_index; | 63 int root_navigation_index; |
64 int64_t task_id; | 64 int64_t task_id; |
65 }; | 65 }; |
66 | 66 |
67 // Task ids (with root task) for the navigations of the tab. The vector is | 67 // Task ids (with root task) for the navigations of the tab. The vector is |
68 // corresponding to the sequence of navigations of the tab. | 68 // corresponding to the sequence of navigations of the tab. |
69 std::vector<TaskIdAndRoot> task_ids_; | 69 std::vector<TaskIdAndRoot> task_ids_; |
70 // Task ids from the source tab. | |
71 std::vector<int64_t> source_tab_task_ids_; | |
Nicolas Zea
2017/05/10 00:10:56
Why store the source tab task in a separate vector
shenchao
2017/05/17 16:48:16
Done.
| |
70 // Index of current navigation in task_ids_. | 72 // Index of current navigation in task_ids_. |
71 int current_navigation_index_ = -1; | 73 int current_navigation_index_ = -1; |
72 // Number of oldest ancestors which have been excluded from being tracked in | 74 // Number of oldest ancestors which have been excluded from being tracked in |
73 // task_ids_; | 75 // task_ids_; |
74 int excluded_navigation_num_ = 0; | 76 int excluded_navigation_num_ = 0; |
75 | 77 |
76 DISALLOW_COPY_AND_ASSIGN(TabTasks); | 78 DISALLOW_COPY_AND_ASSIGN(TabTasks); |
77 }; | 79 }; |
78 | 80 |
79 // Tracks tasks of current session. | 81 // Tracks tasks of current session. |
80 class TaskTracker { | 82 class TaskTracker { |
81 public: | 83 public: |
82 // Constructs with a clock to get timestamp as new task ids. | 84 // Constructs with a clock to get timestamp as new task ids. |
83 TaskTracker(); | 85 TaskTracker(); |
84 virtual ~TaskTracker(); | 86 virtual ~TaskTracker(); |
85 | 87 |
86 // Returns a TabTasks pointer, which is owned by this object, for the tab of | 88 // Returns a TabTasks pointer, which is owned by this object, for the tab of |
87 // given |tab_id|. | 89 // given |tab_id|. |
88 TabTasks* GetTabTasks(SessionID::id_type tab_id); | 90 TabTasks* GetTabTasks(SessionID::id_type tab_id); |
89 | 91 |
92 // Returns a TabTasks pointer, which is owned by this object, for the tab of | |
93 // given |tab_id|, which is created from a source tab |source_tab_id|. | |
94 TabTasks* GetTabTasks(SessionID::id_type tab_id, | |
95 SessionID::id_type source_tab_id); | |
96 | |
90 // Cleans tracked task ids of navigations in the tab of |tab_id|. | 97 // Cleans tracked task ids of navigations in the tab of |tab_id|. |
91 void CleanTabTasks(SessionID::id_type tab_id); | 98 void CleanTabTasks(SessionID::id_type tab_id); |
92 | 99 |
93 private: | 100 private: |
94 FRIEND_TEST_ALL_PREFIXES(TaskTrackerTest, CleanTabTasks); | 101 FRIEND_TEST_ALL_PREFIXES(TaskTrackerTest, CleanTabTasks); |
95 std::map<SessionID::id_type, std::unique_ptr<TabTasks>> local_tab_tasks_map_; | 102 std::map<SessionID::id_type, std::unique_ptr<TabTasks>> local_tab_tasks_map_; |
96 | 103 |
97 DISALLOW_COPY_AND_ASSIGN(TaskTracker); | 104 DISALLOW_COPY_AND_ASSIGN(TaskTracker); |
98 }; | 105 }; |
99 | 106 |
100 } // namespace sync_sessions | 107 } // namespace sync_sessions |
101 | 108 |
102 #endif // COMPONENTS_SYNC_SESSIONS_TASK_TRACKER_H_ | 109 #endif // COMPONENTS_SYNC_SESSIONS_TASK_TRACKER_H_ |
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