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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
// Copyright 2013 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.
#include "chrome/browser/local_discovery/privet_local_printer_lister.h"
#include <string>
#include "chrome/browser/local_discovery/privet_constants.h"
#include "chrome/browser/local_discovery/privet_device_lister_impl.h"
#include "chrome/browser/local_discovery/privet_http_asynchronous_factory.h"
namespace local_discovery {
struct PrivetLocalPrinterLister::DeviceContext {
DeviceContext() : has_local_printing(false) {
}
scoped_ptr<PrivetHTTPResolution> privet_resolution;
scoped_ptr<PrivetHTTPClient> privet_client;
scoped_ptr<PrivetJSONOperation> info_operation;
DeviceDescription description;
bool has_local_printing;
};
PrivetLocalPrinterLister::PrivetLocalPrinterLister(
ServiceDiscoveryClient* service_discovery_client,
net::URLRequestContextGetter* request_context,
Delegate* delegate) : delegate_(delegate) {
privet_lister_.reset(
new PrivetDeviceListerImpl(service_discovery_client, this));
privet_http_factory_ = PrivetHTTPAsynchronousFactory::CreateInstance(
service_discovery_client, request_context);
}
PrivetLocalPrinterLister::~PrivetLocalPrinterLister() {
}
void PrivetLocalPrinterLister::Start() {
privet_lister_->Start();
privet_lister_->DiscoverNewDevices(false);
}
void PrivetLocalPrinterLister::Stop() {
privet_lister_.reset();
}
void PrivetLocalPrinterLister::DeviceChanged(
bool added,
const std::string& name,
const DeviceDescription& description) {
if (description.type != kPrivetTypePrinter)
return;
DeviceContextMap::iterator i = device_contexts_.find(name);
if (i != device_contexts_.end()) {
i->second->description = description;
delegate_->LocalPrinterChanged(added, name, i->second->has_local_printing,
description);
} else {
linked_ptr<DeviceContext> context(new DeviceContext);
context->has_local_printing = false;
context->description = description;
context->privet_resolution = privet_http_factory_->CreatePrivetHTTP(
name,
description.address,
base::Bind(&PrivetLocalPrinterLister::OnPrivetResolved,
base::Unretained(this), name));
device_contexts_[name] = context;
context->privet_resolution->Start();
}
}
void PrivetLocalPrinterLister::DeviceCacheFlushed() {
device_contexts_.clear();
delegate_->LocalPrinterCacheFlushed();
}
void PrivetLocalPrinterLister::OnPrivetResolved(
const std::string& name,
scoped_ptr<PrivetHTTPClient> http_client) {
if (!http_client) {
// Remove device if we can't resolve it.
device_contexts_.erase(name);
return;
}
DeviceContextMap::iterator i = device_contexts_.find(http_client->GetName());
DCHECK(i != device_contexts_.end());
i->second->info_operation = http_client->CreateInfoOperation(
base::Bind(&PrivetLocalPrinterLister::OnPrivetInfoDone,
base::Unretained(this),
i->second.get(),
http_client->GetName()));
i->second->privet_client = http_client.Pass();
i->second->info_operation->Start();
}
void PrivetLocalPrinterLister::OnPrivetInfoDone(
DeviceContext* context,
const std::string& name,
const base::DictionaryValue* json_value) {
bool has_local_printing = false;
const base::ListValue* api_list = NULL;
if (json_value && json_value->GetList(kPrivetInfoKeyAPIList, &api_list)) {
for (size_t i = 0; i < api_list->GetSize(); i++) {
std::string api;
api_list->GetString(i, &api);
if (api == kPrivetSubmitdocPath) {
has_local_printing = true;
}
}
}
context->has_local_printing = has_local_printing;
delegate_->LocalPrinterChanged(true, name, has_local_printing,
context->description);
}
void PrivetLocalPrinterLister::DeviceRemoved(const std::string& device_name) {
DeviceContextMap::iterator i = device_contexts_.find(device_name);
if (i != device_contexts_.end()) {
device_contexts_.erase(i);
delegate_->LocalPrinterRemoved(device_name);
}
}
const DeviceDescription* PrivetLocalPrinterLister::GetDeviceDescription(
const std::string& name) {
DeviceContextMap::iterator i = device_contexts_.find(name);
if (i == device_contexts_.end()) return NULL;
return &i->second->description;
}
} // namespace local_discovery
|
