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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/usb/usb_chooser_choices.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/stl_util.h" | |
9 #include "base/strings/utf_string_conversions.h" | |
10 #include "chrome/browser/profiles/profile.h" | |
11 #include "chrome/browser/usb/usb_chooser_context.h" | |
12 #include "chrome/browser/usb/usb_chooser_context_factory.h" | |
13 #include "content/public/browser/render_frame_host.h" | |
14 #include "content/public/browser/web_contents.h" | |
15 #include "device/core/device_client.h" | |
16 #include "device/devices_app/usb/type_converters.h" | |
17 #include "device/usb/usb_device.h" | |
18 #include "device/usb/usb_device_filter.h" | |
19 #include "device/usb/usb_service.h" | |
20 | |
21 namespace { | |
22 | |
23 // Check if the origin is in the description set. | |
24 bool FindOriginInDescriptorSet(const device::WebUsbDescriptorSet* set, | |
25 const GURL& origin) { | |
26 if (!set) | |
27 return false; | |
28 | |
29 if (ContainsValue(set->origins, origin)) { | |
30 return true; | |
31 } | |
32 | |
33 for (const auto& config : set->configurations) { | |
34 if (ContainsValue(config.origins, origin)) { | |
35 return true; | |
36 } | |
37 | |
38 for (const auto& function : config.functions) { | |
39 if (ContainsValue(function.origins, origin)) { | |
40 return true; | |
41 } | |
42 } | |
43 } | |
44 | |
45 return false; | |
46 } | |
47 | |
48 } // namespace | |
49 | |
50 UsbChooserChoices::UsbChooserChoices( | |
51 mojo::Array<device::usb::DeviceFilterPtr> device_filters, | |
52 content::RenderFrameHost* render_frame_host, | |
53 const webusb::WebUsbPermissionBubble::GetPermissionCallback& callback) | |
54 : device_filters_(device_filters.Pass()), | |
55 render_frame_host_(render_frame_host), | |
56 callback_(callback), | |
57 usb_service_observer_(this) { | |
58 device::UsbService* usb_service = | |
59 device::DeviceClient::Get()->GetUsbService(); | |
60 if (!usb_service) | |
61 return; | |
62 | |
63 if (!usb_service_observer_.IsObserving(usb_service)) | |
64 usb_service_observer_.Add(usb_service); | |
65 | |
66 if (!device_filters_.is_null()) | |
67 filters_ = device_filters_.To<std::vector<device::UsbDeviceFilter>>(); | |
68 origin_ = render_frame_host_->GetLastCommittedURL().GetOrigin(); | |
69 | |
70 usb_service->GetDevices(base::Bind(&UsbChooserChoices::GetUsbDevicesList, | |
71 base::Unretained(this))); | |
72 } | |
73 | |
74 UsbChooserChoices::~UsbChooserChoices() { | |
75 if (!callback_.is_null()) | |
76 callback_.Run(nullptr); | |
77 } | |
78 | |
79 const std::vector<std::string>& UsbChooserChoices::GetChoices() const { | |
80 return devices_names_; | |
81 } | |
82 | |
83 // index < 0 means cancel button was pressed. | |
84 void UsbChooserChoices::Select(int index) { | |
85 if (index >= 0 && index < static_cast<int>(devices_.size())) { | |
86 content::WebContents* web_contents = | |
87 content::WebContents::FromRenderFrameHost(render_frame_host_); | |
88 GURL embedding_origin = | |
89 web_contents->GetMainFrame()->GetLastCommittedURL().GetOrigin(); | |
90 Profile* profile = | |
91 Profile::FromBrowserContext(web_contents->GetBrowserContext()); | |
92 UsbChooserContext* chooser_context = | |
93 UsbChooserContextFactory::GetForProfile(profile); | |
94 chooser_context->GrantDevicePermission(origin_, embedding_origin, | |
95 devices_[index]->guid()); | |
96 | |
97 device::usb::DeviceInfoPtr device_info_ptr = | |
98 device::usb::DeviceInfo::From(*devices_[index]); | |
99 callback_.Run(device_info_ptr.Pass()); | |
100 } else { | |
101 callback_.Run(nullptr); | |
102 } | |
103 callback_.reset(); // Reset |callback| so that it is only run once. | |
104 } | |
105 | |
106 void UsbChooserChoices::OnDeviceAdded(scoped_refptr<device::UsbDevice> device) { | |
107 DCHECK(!ContainsValue(devices_, device)); | |
108 if (device::UsbDeviceFilter::MatchesAny(device, filters_) && | |
109 FindOriginInDescriptorSet(device->webusb_allowed_origins(), origin_)) { | |
110 devices_.push_back(device); | |
111 devices_names_.push_back(base::UTF16ToASCII(device->product_string())); | |
Reilly Grant (use Gerrit)
2015/11/12 21:44:37
Keep the UTF16 string all the way through, definit
juncai
2015/11/14 01:54:36
Done.
| |
112 if (observer()) | |
113 observer()->OnChoiceAdded(static_cast<int>(devices_names_.size()) - 1); | |
114 } | |
115 } | |
116 | |
117 void UsbChooserChoices::OnDeviceRemoved( | |
118 scoped_refptr<device::UsbDevice> device) { | |
119 auto itor = std::find(devices_.begin(), devices_.end(), device); | |
Reilly Grant (use Gerrit)
2015/11/12 21:44:37
s/itor/iter/g
juncai
2015/11/14 01:54:36
Done.
| |
120 if (itor != devices_.end()) { | |
121 int index = itor - devices_.begin(); | |
122 devices_.erase(itor); | |
123 devices_names_.erase(devices_names_.begin() + index); | |
124 if (observer()) | |
125 observer()->OnChoiceRemoved(index); | |
126 } | |
127 } | |
128 | |
129 // Get a list of devices that can be shown in the chooser bubble UI for | |
130 // user to grant permsssion. | |
131 void UsbChooserChoices::GetUsbDevicesList( | |
132 const std::vector<scoped_refptr<device::UsbDevice>>& devices) { | |
133 for (const auto& device : devices) { | |
134 if (device::UsbDeviceFilter::MatchesAny(device, filters_) && | |
135 FindOriginInDescriptorSet(device->webusb_allowed_origins(), origin_)) { | |
136 devices_.push_back(device); | |
137 devices_names_.push_back(base::UTF16ToASCII(device->product_string())); | |
138 } | |
139 } | |
140 if (observer()) | |
141 observer()->OnChoicesInitialized(); | |
142 } | |
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