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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 CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_ | 5 #ifndef CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_ |
6 #define CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_ | 6 #define CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
11 #include "base/threading/thread.h" | 11 #include "base/threading/thread.h" |
12 #include "printing/page_number.h" | 12 #include "printing/page_number.h" |
13 #include "printing/print_destination_interface.h" | 13 #include "printing/print_destination_interface.h" |
14 #include "printing/printing_context.h" | 14 #include "printing/printing_context.h" |
15 #include "printing/print_job_constants.h" | 15 #include "printing/print_job_constants.h" |
16 | 16 |
17 namespace base { | 17 namespace base { |
18 class DictionaryValue; | 18 class DictionaryValue; |
19 } | 19 } |
20 | 20 |
21 namespace printing { | 21 namespace printing { |
22 | 22 |
23 class PrintJob; | 23 class PrintJob; |
24 class PrintJobWorkerOwner; | 24 class PrintJobWorkerOwner; |
25 class PrintedDocument; | 25 class PrintedDocument; |
26 class PrintedPage; | 26 class PrintedPage; |
27 class PrintingUIWebContentsObserver; | |
28 | 27 |
29 // Worker thread code. It manages the PrintingContext, which can be blocking | 28 // Worker thread code. It manages the PrintingContext, which can be blocking |
30 // and/or run a message loop. This is the object that generates most | 29 // and/or run a message loop. This is the object that generates most |
31 // NOTIFY_PRINT_JOB_EVENT notifications, but they are generated through a | 30 // NOTIFY_PRINT_JOB_EVENT notifications, but they are generated through a |
32 // NotificationTask task to be executed from the right thread, the UI thread. | 31 // NotificationTask task to be executed from the right thread, the UI thread. |
33 // PrintJob always outlives its worker instance. | 32 // PrintJob always outlives its worker instance. |
34 class PrintJobWorker { | 33 class PrintJobWorker { |
35 public: | 34 public: |
36 explicit PrintJobWorker(PrintJobWorkerOwner* owner); | 35 PrintJobWorker(int render_process_id, |
| 36 int render_view_id, |
| 37 PrintJobWorkerOwner* owner); |
37 virtual ~PrintJobWorker(); | 38 virtual ~PrintJobWorker(); |
38 | 39 |
39 void SetNewOwner(PrintJobWorkerOwner* new_owner); | 40 void SetNewOwner(PrintJobWorkerOwner* new_owner); |
40 | 41 |
41 // Set a destination for print. | 42 // Set a destination for print. |
42 // This supersedes the document's rendering destination. | 43 // This supersedes the document's rendering destination. |
43 void SetPrintDestination(PrintDestinationInterface* destination); | 44 void SetPrintDestination(PrintDestinationInterface* destination); |
44 | 45 |
45 // Initializes the print settings. If |ask_user_for_settings| is true, a | 46 // Initializes the print settings. If |ask_user_for_settings| is true, a |
46 // Print... dialog box will be shown to ask the user his preference. | 47 // Print... dialog box will be shown to ask the user his preference. |
47 void GetSettings( | 48 void GetSettings( |
48 bool ask_user_for_settings, | 49 bool ask_user_for_settings, |
49 scoped_ptr<PrintingUIWebContentsObserver> web_contents_observer, | |
50 int document_page_count, | 50 int document_page_count, |
51 bool has_selection, | 51 bool has_selection, |
52 MarginType margin_type); | 52 MarginType margin_type); |
53 | 53 |
54 // Set the new print settings. | 54 // Set the new print settings. |
55 void SetSettings( | 55 void SetSettings(scoped_ptr<base::DictionaryValue> new_settings); |
56 scoped_ptr<base::DictionaryValue> new_settings); | |
57 | 56 |
58 // Starts the printing loop. Every pages are printed as soon as the data is | 57 // Starts the printing loop. Every pages are printed as soon as the data is |
59 // available. Makes sure the new_document is the right one. | 58 // available. Makes sure the new_document is the right one. |
60 void StartPrinting(PrintedDocument* new_document); | 59 void StartPrinting(PrintedDocument* new_document); |
61 | 60 |
62 // Updates the printed document. | 61 // Updates the printed document. |
63 void OnDocumentChanged(PrintedDocument* new_document); | 62 void OnDocumentChanged(PrintedDocument* new_document); |
64 | 63 |
65 // Dequeues waiting pages. Called when PrintJob receives a | 64 // Dequeues waiting pages. Called when PrintJob receives a |
66 // NOTIFY_PRINTED_DOCUMENT_UPDATED notification. It's time to look again if | 65 // NOTIFY_PRINTED_DOCUMENT_UPDATED notification. It's time to look again if |
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105 void OnDocumentDone(); | 104 void OnDocumentDone(); |
106 | 105 |
107 // Discards the current document, the current page and cancels the printing | 106 // Discards the current document, the current page and cancels the printing |
108 // context. | 107 // context. |
109 void OnFailure(); | 108 void OnFailure(); |
110 | 109 |
111 // Asks the user for print settings. Must be called on the UI thread. | 110 // Asks the user for print settings. Must be called on the UI thread. |
112 // Required on Mac and Linux. Windows can display UI from non-main threads, | 111 // Required on Mac and Linux. Windows can display UI from non-main threads, |
113 // but sticks with this for consistency. | 112 // but sticks with this for consistency. |
114 void GetSettingsWithUI( | 113 void GetSettingsWithUI( |
115 scoped_ptr<PrintingUIWebContentsObserver> web_contents_observer, | |
116 int document_page_count, | 114 int document_page_count, |
117 bool has_selection); | 115 bool has_selection); |
118 | 116 |
119 // The callback used by PrintingContext::GetSettingsWithUI() to notify this | 117 // The callback used by PrintingContext::GetSettingsWithUI() to notify this |
120 // object that the print settings are set. This is needed in order to bounce | 118 // object that the print settings are set. This is needed in order to bounce |
121 // back into the IO thread for GetSettingsDone(). | 119 // back into the IO thread for GetSettingsDone(). |
122 void GetSettingsWithUIDone(PrintingContext::Result result); | 120 void GetSettingsWithUIDone(PrintingContext::Result result); |
123 | 121 |
124 // Called on the UI thread to update the print settings. | 122 // Called on the UI thread to update the print settings. |
125 void UpdatePrintSettings(scoped_ptr<base::DictionaryValue> new_settings); | 123 void UpdatePrintSettings(scoped_ptr<base::DictionaryValue> new_settings); |
126 | 124 |
127 // Reports settings back to owner_. | 125 // Reports settings back to owner_. |
128 void GetSettingsDone(PrintingContext::Result result); | 126 void GetSettingsDone(PrintingContext::Result result); |
129 | 127 |
130 // Use the default settings. When using GTK+ or Mac, this can still end up | 128 // Use the default settings. When using GTK+ or Mac, this can still end up |
131 // displaying a dialog. So this needs to happen from the UI thread on these | 129 // displaying a dialog. So this needs to happen from the UI thread on these |
132 // systems. | 130 // systems. |
133 void UseDefaultSettings(); | 131 void UseDefaultSettings(); |
134 | 132 |
| 133 // Printing context delegate. |
| 134 scoped_ptr<PrintingContext::Delegate> printing_context_delegate_; |
| 135 |
135 // Information about the printer setting. | 136 // Information about the printer setting. |
136 scoped_ptr<PrintingContext> printing_context_; | 137 scoped_ptr<PrintingContext> printing_context_; |
137 | 138 |
138 // The printed document. Only has read-only access. | 139 // The printed document. Only has read-only access. |
139 scoped_refptr<PrintedDocument> document_; | 140 scoped_refptr<PrintedDocument> document_; |
140 | 141 |
141 // The print destination, may be NULL. | 142 // The print destination, may be NULL. |
142 scoped_refptr<PrintDestinationInterface> destination_; | 143 scoped_refptr<PrintDestinationInterface> destination_; |
143 | 144 |
144 // The print job owning this worker thread. It is guaranteed to outlive this | 145 // The print job owning this worker thread. It is guaranteed to outlive this |
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156 | 157 |
157 // Used to generate a WeakPtr for callbacks. | 158 // Used to generate a WeakPtr for callbacks. |
158 base::WeakPtrFactory<PrintJobWorker> weak_factory_; | 159 base::WeakPtrFactory<PrintJobWorker> weak_factory_; |
159 | 160 |
160 DISALLOW_COPY_AND_ASSIGN(PrintJobWorker); | 161 DISALLOW_COPY_AND_ASSIGN(PrintJobWorker); |
161 }; | 162 }; |
162 | 163 |
163 } // namespace printing | 164 } // namespace printing |
164 | 165 |
165 #endif // CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_ | 166 #endif // CHROME_BROWSER_PRINTING_PRINT_JOB_WORKER_H_ |
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