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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 CHROME_INSTALLER_UTIL_CONDITIONAL_WORK_ITEM_LIST_H_ | 5 #ifndef CHROME_INSTALLER_UTIL_CONDITIONAL_WORK_ITEM_LIST_H_ |
6 #define CHROME_INSTALLER_UTIL_CONDITIONAL_WORK_ITEM_LIST_H_ | 6 #define CHROME_INSTALLER_UTIL_CONDITIONAL_WORK_ITEM_LIST_H_ |
7 | 7 |
8 #include "chrome/installer/util/work_item_list.h" | 8 #include "chrome/installer/util/work_item_list.h" |
9 | 9 |
10 #include "base/files/file_path.h" | 10 #include "base/files/file_path.h" |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 | 12 |
13 // A WorkItemList subclass that permits conditionally executing a set of | 13 // A WorkItemList subclass that permits conditionally executing a set of |
14 // WorkItems. | 14 // WorkItems. |
15 class ConditionalWorkItemList : public WorkItemList { | 15 class ConditionalWorkItemList : public WorkItemList { |
16 public: | 16 public: |
17 explicit ConditionalWorkItemList(Condition* condition); | 17 explicit ConditionalWorkItemList(Condition* condition); |
18 virtual ~ConditionalWorkItemList(); | 18 ~ConditionalWorkItemList() override; |
19 | 19 |
20 // If condition_->ShouldRun() returns true, then execute the items in this | 20 // If condition_->ShouldRun() returns true, then execute the items in this |
21 // list and return true iff they all succeed. If condition_->ShouldRun() | 21 // list and return true iff they all succeed. If condition_->ShouldRun() |
22 // returns false, does nothing and returns true. | 22 // returns false, does nothing and returns true. |
23 virtual bool Do(); | 23 bool Do() override; |
24 | 24 |
25 // Does a rollback of the items (if any) that were run in Do. | 25 // Does a rollback of the items (if any) that were run in Do. |
26 virtual void Rollback(); | 26 void Rollback() override; |
27 | 27 |
28 protected: | 28 protected: |
29 // Pointer to a Condition that is used to determine whether to run this | 29 // Pointer to a Condition that is used to determine whether to run this |
30 // WorkItemList. | 30 // WorkItemList. |
31 scoped_ptr<Condition> condition_; | 31 scoped_ptr<Condition> condition_; |
32 }; | 32 }; |
33 | 33 |
34 | 34 |
35 // Pre-defined conditions: | 35 // Pre-defined conditions: |
36 //------------------------------------------------------------------------------ | 36 //------------------------------------------------------------------------------ |
37 class ConditionRunIfFileExists : public WorkItem::Condition { | 37 class ConditionRunIfFileExists : public WorkItem::Condition { |
38 public: | 38 public: |
39 explicit ConditionRunIfFileExists(const base::FilePath& key_path) | 39 explicit ConditionRunIfFileExists(const base::FilePath& key_path) |
40 : key_path_(key_path) {} | 40 : key_path_(key_path) {} |
41 bool ShouldRun() const; | 41 bool ShouldRun() const override; |
42 | 42 |
43 private: | 43 private: |
44 base::FilePath key_path_; | 44 base::FilePath key_path_; |
45 }; | 45 }; |
46 | 46 |
47 // Condition class that inverts the ShouldRun result of another Condition. | 47 // Condition class that inverts the ShouldRun result of another Condition. |
48 // This class assumes ownership of original_condition. | 48 // This class assumes ownership of original_condition. |
49 class Not : public WorkItem::Condition { | 49 class Not : public WorkItem::Condition { |
50 public: | 50 public: |
51 explicit Not(WorkItem::Condition* original_condition); | 51 explicit Not(WorkItem::Condition* original_condition); |
52 ~Not(); | 52 ~Not() override; |
53 | 53 |
54 bool ShouldRun() const; | 54 bool ShouldRun() const override; |
55 | 55 |
56 private: | 56 private: |
57 scoped_ptr<WorkItem::Condition> original_condition_; | 57 scoped_ptr<WorkItem::Condition> original_condition_; |
58 }; | 58 }; |
59 | 59 |
60 #endif // CHROME_INSTALLER_UTIL_CONDITIONAL_WORK_ITEM_LIST_H_ | 60 #endif // CHROME_INSTALLER_UTIL_CONDITIONAL_WORK_ITEM_LIST_H_ |
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