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      1 // Copyright 2014 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/local_discovery/cloud_device_list.h"
      6 
      7 #include <utility>
      8 
      9 #include "base/strings/stringprintf.h"
     10 #include "chrome/browser/local_discovery/gcd_constants.h"
     11 #include "components/cloud_devices/common/cloud_devices_urls.h"
     12 
     13 namespace local_discovery {
     14 
     15 namespace {
     16 const char kKindDevicesList[] = "clouddevices#devicesListResponse";
     17 }
     18 
     19 CloudDeviceList::CloudDeviceList(CloudDeviceListDelegate* delegate)
     20     : delegate_(delegate) {
     21 }
     22 
     23 CloudDeviceList::~CloudDeviceList() {
     24 }
     25 
     26 void CloudDeviceList::OnGCDAPIFlowError(GCDApiFlow::Status status) {
     27   delegate_->OnDeviceListUnavailable();
     28 }
     29 
     30 void CloudDeviceList::OnGCDAPIFlowComplete(const base::DictionaryValue& value) {
     31   std::string kind;
     32   value.GetString(kGCDKeyKind, &kind);
     33 
     34   const base::ListValue* devices = NULL;
     35   if (kind != kKindDevicesList || !value.GetList("devices", &devices)) {
     36     delegate_->OnDeviceListUnavailable();
     37     return;
     38   }
     39 
     40   std::vector<CloudDeviceListDelegate::Device> result;
     41   for (base::ListValue::const_iterator i = devices->begin();
     42        i != devices->end(); i++) {
     43     base::DictionaryValue* device;
     44     CloudDeviceListDelegate::Device details;
     45 
     46     if (!(*i)->GetAsDictionary(&device))
     47       continue;
     48 
     49     if (!FillDeviceDetails(*device, &details))
     50       continue;
     51 
     52     result.push_back(details);
     53   }
     54 
     55   delegate_->OnDeviceListReady(result);
     56 }
     57 
     58 GURL CloudDeviceList::GetURL() {
     59   return cloud_devices::GetCloudDevicesRelativeURL("devices");
     60 }
     61 
     62 bool CloudDeviceList::FillDeviceDetails(
     63     const base::DictionaryValue& device_value,
     64     CloudDeviceListDelegate::Device* details) {
     65   if (!device_value.GetString("id", &details->id))
     66     return false;
     67 
     68   if (!device_value.GetString("displayName", &details->display_name) &&
     69       !device_value.GetString("systemName", &details->display_name)) {
     70     return false;
     71   }
     72 
     73   if (!device_value.GetString("deviceKind", &details->type))
     74     return false;
     75 
     76   // Non-essential.
     77   device_value.GetString("description", &details->description);
     78 
     79   return true;
     80 }
     81 
     82 }  // namespace local_discovery
     83