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Side by Side Diff: chrome/browser/download/download_target_determiner.h

Issue 12662032: Merge SavePackageFilePicker{,ChromeOS} (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: @r198452 Created 7 years, 7 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 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_BROWSER_DOWNLOAD_DOWNLOAD_TARGET_DETERMINER_H_ 5 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TARGET_DETERMINER_H_
6 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TARGET_DETERMINER_H_ 6 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TARGET_DETERMINER_H_
7 7
8 #include "base/files/file_path.h" 8 #include "base/files/file_path.h"
9 #include "base/memory/ref_counted.h" 9 #include "base/memory/ref_counted.h"
10 #include "base/memory/scoped_ptr.h" 10 #include "base/memory/scoped_ptr.h"
(...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after
48 // The only public entrypoint is the static Start() method which creates an 48 // The only public entrypoint is the static Start() method which creates an
49 // instance of DownloadTargetDeterminer. 49 // instance of DownloadTargetDeterminer.
50 class DownloadTargetDeterminer 50 class DownloadTargetDeterminer
51 : public content::DownloadItem::Observer { 51 : public content::DownloadItem::Observer {
52 public: 52 public:
53 // Start the process of determing the target of |download|. 53 // Start the process of determing the target of |download|.
54 // 54 //
55 // |download_prefs| is required and must outlive |download|. It is used for 55 // |download_prefs| is required and must outlive |download|. It is used for
56 // determining the user's preferences regarding the default downloads 56 // determining the user's preferences regarding the default downloads
57 // directory, prompting and auto-open behavior. 57 // directory, prompting and auto-open behavior.
58 // |last_selected_directory| is the most recent directory that was chosen by
59 // the user. If the user needs to be prompted, then this directory will be
60 // used as the directory for the download instead of the user's default
61 // downloads directory.
62 // |delegate| is required and must live until |callback| is invoked. 58 // |delegate| is required and must live until |callback| is invoked.
63 // |callback| will be scheduled asynchronously on the UI thread after download 59 // |callback| will be scheduled asynchronously on the UI thread after download
64 // determination is complete or after |download| is destroyed. 60 // determination is complete or after |download| is destroyed.
65 // 61 //
66 // Start() should be called on the UI thread. 62 // Start() should be called on the UI thread.
67 static void Start(content::DownloadItem* download, 63 static void Start(content::DownloadItem* download,
68 DownloadPrefs* download_prefs, 64 DownloadPrefs* download_prefs,
69 const base::FilePath& last_selected_directory,
70 DownloadTargetDeterminerDelegate* delegate, 65 DownloadTargetDeterminerDelegate* delegate,
71 const content::DownloadTargetCallback& callback); 66 const content::DownloadTargetCallback& callback);
72 67
73 private: 68 private:
74 // The main workflow is controlled via a set of state transitions. Each state 69 // The main workflow is controlled via a set of state transitions. Each state
75 // has an associated handler. The handler for STATE_FOO is DoFoo. Each handler 70 // has an associated handler. The handler for STATE_FOO is DoFoo. Each handler
76 // performs work, determines the next state to transition to and returns a 71 // performs work, determines the next state to transition to and returns a
77 // Result indicating how the workflow should proceed. The loop ends when a 72 // Result indicating how the workflow should proceed. The loop ends when a
78 // handler returns COMPLETE. 73 // handler returns COMPLETE.
79 enum State { 74 enum State {
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110 enum PriorVisitsToReferrer { 105 enum PriorVisitsToReferrer {
111 NO_VISITS_TO_REFERRER, 106 NO_VISITS_TO_REFERRER,
112 VISITED_REFERRER, 107 VISITED_REFERRER,
113 }; 108 };
114 109
115 // Construct a DownloadTargetDeterminer object. Constraints on the arguments 110 // Construct a DownloadTargetDeterminer object. Constraints on the arguments
116 // are as per Start() above. 111 // are as per Start() above.
117 DownloadTargetDeterminer( 112 DownloadTargetDeterminer(
118 content::DownloadItem* download, 113 content::DownloadItem* download,
119 DownloadPrefs* download_prefs, 114 DownloadPrefs* download_prefs,
120 const base::FilePath& last_selected_directory,
121 DownloadTargetDeterminerDelegate* delegate, 115 DownloadTargetDeterminerDelegate* delegate,
122 const content::DownloadTargetCallback& callback); 116 const content::DownloadTargetCallback& callback);
123 117
124 virtual ~DownloadTargetDeterminer(); 118 virtual ~DownloadTargetDeterminer();
125 119
126 // Invoke each successive handler until a handler returns QUIT_DOLOOP or 120 // Invoke each successive handler until a handler returns QUIT_DOLOOP or
127 // COMPLETE. Note that as a result, this object might be deleted. So |this| 121 // COMPLETE. Note that as a result, this object might be deleted. So |this|
128 // should not be accessed after calling DoLoop(). 122 // should not be accessed after calling DoLoop().
129 void DoLoop(); 123 void DoLoop();
130 124
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234 bool create_directory_; 228 bool create_directory_;
235 DownloadPathReservationTracker::FilenameConflictAction conflict_action_; 229 DownloadPathReservationTracker::FilenameConflictAction conflict_action_;
236 content::DownloadDangerType danger_type_; 230 content::DownloadDangerType danger_type_;
237 base::FilePath virtual_path_; 231 base::FilePath virtual_path_;
238 base::FilePath local_path_; 232 base::FilePath local_path_;
239 base::FilePath intermediate_path_; 233 base::FilePath intermediate_path_;
240 234
241 content::DownloadItem* download_; 235 content::DownloadItem* download_;
242 DownloadPrefs* download_prefs_; 236 DownloadPrefs* download_prefs_;
243 DownloadTargetDeterminerDelegate* delegate_; 237 DownloadTargetDeterminerDelegate* delegate_;
244 base::FilePath last_selected_directory_;
245 content::DownloadTargetCallback completion_callback_; 238 content::DownloadTargetCallback completion_callback_;
246 CancelableRequestConsumer history_consumer_; 239 CancelableRequestConsumer history_consumer_;
247 240
248 base::WeakPtrFactory<DownloadTargetDeterminer> weak_ptr_factory_; 241 base::WeakPtrFactory<DownloadTargetDeterminer> weak_ptr_factory_;
249 242
250 DISALLOW_COPY_AND_ASSIGN(DownloadTargetDeterminer); 243 DISALLOW_COPY_AND_ASSIGN(DownloadTargetDeterminer);
251 }; 244 };
252 245
253 #endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TARGET_DETERMINER_H_ 246 #endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_TARGET_DETERMINER_H_
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