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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_DELEGATE_H_ | 5 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_DELEGATE_H_ |
6 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_DELEGATE_H_ | 6 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_DELEGATE_H_ |
7 | 7 |
8 #include "base/file_path.h" | 8 #include "base/file_path.h" |
9 #include "content/common/content_export.h" | 9 #include "content/common/content_export.h" |
10 | 10 |
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21 // be left unimplemented. | 21 // be left unimplemented. |
22 class CONTENT_EXPORT DownloadItemImplDelegate { | 22 class CONTENT_EXPORT DownloadItemImplDelegate { |
23 public: | 23 public: |
24 DownloadItemImplDelegate(); | 24 DownloadItemImplDelegate(); |
25 virtual ~DownloadItemImplDelegate(); | 25 virtual ~DownloadItemImplDelegate(); |
26 | 26 |
27 // Used for catching use-after-free errors. | 27 // Used for catching use-after-free errors. |
28 void Attach(); | 28 void Attach(); |
29 void Detach(); | 29 void Detach(); |
30 | 30 |
31 // Tests if a file type should be opened automatically. | 31 // Start the delegate's portion of the download; called when the |
32 virtual bool ShouldOpenFileBasedOnExtension(const FilePath& path); | 32 // download item is ready for the delegate to take over. |
| 33 // Pure virtual because if the delegate doesn't do something the |
| 34 // DownloadItemImpl is dead in the water. |
| 35 // TODO(rdsmith): The machinery of running the download should be |
| 36 // moved into the DownloadItem, and this should be changed into |
| 37 // a probe as to whether to start and if not, provide a callback |
| 38 // to call when it's time to start. |
| 39 virtual void DelegateStart(DownloadItemImpl* download) = 0; |
33 | 40 |
34 // Allows the delegate to override the opening of a download. If it returns | 41 // Allows the delegate to override the opening of a download. If it returns |
35 // true then it's reponsible for opening the item. | 42 // true then it's reponsible for opening the item. |
36 virtual bool ShouldOpenDownload(DownloadItemImpl* download); | 43 virtual bool ShouldOpenDownload(DownloadItemImpl* download); |
37 | 44 |
| 45 // Tests if a file type should be opened automatically. |
| 46 virtual bool ShouldOpenFileBasedOnExtension(const FilePath& path); |
| 47 |
38 // Checks whether a downloaded file still exists and updates the | 48 // Checks whether a downloaded file still exists and updates the |
39 // file's state if the file is already removed. | 49 // file's state if the file is already removed. |
40 // The check may or may not result in a later asynchronous call | 50 // The check may or may not result in a later asynchronous call |
41 // to OnDownloadedFileRemoved(). | 51 // to OnDownloadedFileRemoved(). |
42 virtual void CheckForFileRemoval(DownloadItemImpl* download_item); | 52 virtual void CheckForFileRemoval(DownloadItemImpl* download_item); |
43 | 53 |
44 // If all pre-requisites have been met, complete download processing. | 54 // If all pre-requisites have been met, complete download processing. |
45 // TODO(rdsmith): Move into DownloadItem. | 55 // TODO(rdsmith): Move into DownloadItem. |
46 virtual void MaybeCompleteDownload(DownloadItemImpl* download); | 56 virtual void MaybeCompleteDownload(DownloadItemImpl* download); |
47 | 57 |
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65 virtual void AssertStateConsistent(DownloadItemImpl* download) const; | 75 virtual void AssertStateConsistent(DownloadItemImpl* download) const; |
66 | 76 |
67 private: | 77 private: |
68 // For "Outlives attached DownloadItemImpl" invariant assertion. | 78 // For "Outlives attached DownloadItemImpl" invariant assertion. |
69 int count_; | 79 int count_; |
70 | 80 |
71 DISALLOW_COPY_AND_ASSIGN(DownloadItemImplDelegate); | 81 DISALLOW_COPY_AND_ASSIGN(DownloadItemImplDelegate); |
72 }; | 82 }; |
73 | 83 |
74 #endif // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_DELEGATE_H_ | 84 #endif // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_DELEGATE_H_ |
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