blob: 61fa684e9fcffbe7f3d84c6f827d488af5a0da61 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_PRINTING_BACKGROUND_PRINTING_MANAGER_H_
#define CHROME_BROWSER_PRINTING_BACKGROUND_PRINTING_MANAGER_H_
#pragma once
#include <map>
#include <set>
#include "base/compiler_specific.h"
#include "base/threading/non_thread_safe.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
class RenderProcessHost;
class TabContentsWrapper;
namespace printing {
// Manages hidden tabs that prints documents in the background.
// The hidden tabs are no longer part of any Browser / TabStripModel.
// They get deleted when the tab finishes printing.
class BackgroundPrintingManager : public base::NonThreadSafe,
public content::NotificationObserver {
public:
typedef std::set<TabContentsWrapper*> TabContentsWrapperSet;
BackgroundPrintingManager();
virtual ~BackgroundPrintingManager();
// Takes ownership of |preview_tab| and deletes it when |preview_tab| finishes
// printing. This removes the TabContentsWrapper from its TabStrip and
// hides it from the user.
void OwnPrintPreviewTab(TabContentsWrapper* preview_tab);
// Takes ownership of |initiator_tab| and deletes it when its preview tab is
// destroyed by either being canceled, closed or finishing printing. This
// removes the TabContentsWrapper from its TabStrip and hides it from the
// user. Returns true if content has an associated print preview tab,
// otherwise, returns false and does not take ownership of |initiator_tab|.
bool OwnInitiatorTab(TabContentsWrapper* initiator_tab);
// Let others iterate over the list of background printing tabs.
TabContentsWrapperSet::const_iterator begin();
TabContentsWrapperSet::const_iterator end();
// Returns true if |printing_tabs_| contains |preview_tab|.
bool HasPrintPreviewTab(TabContentsWrapper* preview_tab);
// content::NotificationObserver overrides:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
private:
typedef std::map<TabContentsWrapper*, TabContentsWrapper*>
TabContentsWrapperMap;
// Notifications handlers.
void OnRendererProcessClosed(RenderProcessHost* rph);
void OnPrintJobReleased(TabContentsWrapper* preview_tab);
void OnTabContentsDestroyed(TabContentsWrapper* preview_tab);
// Removes |tab| from its tab strip.
void RemoveFromTabStrip(TabContentsWrapper* tab);
// Add |tab| to the pending deletion set and schedule deletion.
void DeletePreviewTab(TabContentsWrapper* tab);
// Check if any of the TabContentsWrappers in |set| share a RenderProcessHost
// with |tab|, excluding |tab|.
bool HasSharedRenderProcessHost(const TabContentsWrapperSet& set,
TabContentsWrapper* tab);
// The set of print preview tabs managed by BackgroundPrintingManager.
TabContentsWrapperSet printing_tabs_;
// The set of print preview tabs managed by BackgroundPrintingManager that
// are pending deletion.
TabContentsWrapperSet printing_tabs_pending_deletion_;
// 1:1 mapping between an initiator tab managed by BackgroundPrintingManager
// and its associated print preview tab. The print preview tab need not be in
// |printing_tabs_|.
// Key: print preview tab.
// Value: initiator tab.
TabContentsWrapperMap map_;
content::NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(BackgroundPrintingManager);
};
} // namespace printing
#endif // CHROME_BROWSER_PRINTING_BACKGROUND_PRINTING_MANAGER_H_
|
