Implement WebBluetooth getDescriptor[s]

content/renderer/bluetooth/web_bluetooth_impl.cc

 // Copyright 2014 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 "content/renderer/bluetooth/web_bluetooth_impl.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "base/memory/ptr_util.h"
 #include "base/optional.h"
 #include "content/child/mojo/type_converters.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/common/bluetooth/web_bluetooth_device_id.h"
 #include "content/renderer/bluetooth/bluetooth_type_converters.h"
 #include "ipc/ipc_message.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDevice.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothDeviceInit.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothRemoteGATTCharacteristic.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothRemoteGATTCharacteristicInit.h"
+#include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothRemoteGATTDescriptor.h"
+#include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothRemoteGATTDescriptorInit.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/WebBluetoothRemoteGATTService.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/WebRequestDeviceOptions.h"
 
 namespace content {
 
 namespace {
 
 // Blink can't use non-blink mojo enums like blink::mojom::WebBluetoothResult,
 // so we pass it as an int32 across the boundary.
 int32_t ToInt32(blink::mojom::WebBluetoothResult result) {
@@ skipping 71 matching lines @@
       static_cast<blink::mojom::WebBluetoothGATTQueryQuantity>(quantity),
       characteristics_uuid.isEmpty()
           ? base::nullopt
           : base::make_optional(
                 device::BluetoothUUID(characteristics_uuid.utf8())),
       base::Bind(&WebBluetoothImpl::OnGetCharacteristicsComplete,
                  base::Unretained(this), service_instance_id,
                  base::Passed(base::WrapUnique(callbacks))));
 }
 
-void WebBluetoothImpl::readValue(
+void WebBluetoothImpl::characteristicReadValue(
     const blink::WebString& characteristic_instance_id,
     blink::WebBluetoothReadValueCallbacks* callbacks) {
   GetWebBluetoothService().RemoteCharacteristicReadValue(
       mojo::String::From(characteristic_instance_id),
       base::Bind(&WebBluetoothImpl::OnReadValueComplete, base::Unretained(this),
                  base::Passed(base::WrapUnique(callbacks))));
 }
 
-void WebBluetoothImpl::writeValue(
+void WebBluetoothImpl::characteristicWriteValue(
     const blink::WebString& characteristic_instance_id,
     const blink::WebVector<uint8_t>& value,
     blink::WebBluetoothWriteValueCallbacks* callbacks) {
   GetWebBluetoothService().RemoteCharacteristicWriteValue(
       mojo::String::From(characteristic_instance_id),
       mojo::Array<uint8_t>::From(value),
       base::Bind(&WebBluetoothImpl::OnWriteValueComplete,
                  base::Unretained(this), value,
                  base::Passed(base::WrapUnique(callbacks))));
 }
@@ skipping 11 matching lines @@
 void WebBluetoothImpl::stopNotifications(
     const blink::WebString& characteristic_instance_id,
     blink::WebBluetoothNotificationsCallbacks* callbacks) {
   GetWebBluetoothService().RemoteCharacteristicStopNotifications(
       mojo::String::From(characteristic_instance_id),
       base::Bind(&WebBluetoothImpl::OnStopNotificationsComplete,
                  base::Unretained(this),
                  base::Passed(base::WrapUnique(callbacks))));
 }
 
+void WebBluetoothImpl::getDescriptors(
+    const blink::WebString& characteristic_instance_id,
+    int32_t quantity,
+    const blink::WebString& descriptors_uuid,
+    blink::WebBluetoothGetDescriptorsCallbacks* callbacks) {
+  DCHECK(blink::mojom::IsKnownEnumValue(
+      static_cast<blink::mojom::WebBluetoothGATTQueryQuantity>(quantity)));
+
+  GetWebBluetoothService().RemoteCharacteristicGetDescriptors(
+      mojo::String::From(characteristic_instance_id),
+      static_cast<blink::mojom::WebBluetoothGATTQueryQuantity>(quantity),
+      descriptors_uuid.isEmpty()
+          ? base::nullopt
+          : base::make_optional(device::BluetoothUUID(descriptors_uuid.utf8())),
+      base::Bind(&WebBluetoothImpl::OnGetDescriptorsComplete,
+                 base::Unretained(this), characteristic_instance_id,
+                 base::Passed(base::WrapUnique(callbacks))));
+}
+
+void WebBluetoothImpl::descriptorReadValue(
+    const blink::WebString& descriptor_instance_id,
+    blink::WebBluetoothReadValueCallbacks* callbacks) {
+  GetWebBluetoothService().RemoteDescriptorReadValue(
+      mojo::String::From(descriptor_instance_id),
+      base::Bind(&WebBluetoothImpl::OnReadValueComplete, base::Unretained(this),
+                 base::Passed(base::WrapUnique(callbacks))));
+}
+
+void WebBluetoothImpl::descriptorWriteValue(
+    const blink::WebString& descriptor_instance_id,
+    const blink::WebVector<uint8_t>& value,
+    blink::WebBluetoothWriteValueCallbacks* callbacks) {
+  GetWebBluetoothService().RemoteDescriptorWriteValue(
+      mojo::String::From(descriptor_instance_id),
+      mojo::Array<uint8_t>::From(value),
+      base::Bind(&WebBluetoothImpl::OnWriteValueComplete,
+                 base::Unretained(this), value,
+                 base::Passed(base::WrapUnique(callbacks))));
+}
+
 void WebBluetoothImpl::characteristicObjectRemoved(
     const blink::WebString& characteristic_instance_id,
     blink::WebBluetoothRemoteGATTCharacteristic* characteristic) {
   active_characteristics_.erase(characteristic_instance_id.utf8());
 }
 
 void WebBluetoothImpl::registerCharacteristicObject(
     const blink::WebString& characteristic_instance_id,
     blink::WebBluetoothRemoteGATTCharacteristic* characteristic) {
   // TODO(ortuno): After the Bluetooth Tree is implemented, there will
   // only be one object per characteristic. But for now we replace
   // the previous object.
   // https://crbug.com/495270
   active_characteristics_[characteristic_instance_id.utf8()] = characteristic;
 }
 
 void WebBluetoothImpl::RemoteCharacteristicValueChanged(
     const mojo::String& characteristic_instance_id,
     mojo::Array<uint8_t> value) {
   // We post a task so that the event is fired after any pending promises have
   // resolved.
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(&WebBluetoothImpl::DispatchCharacteristicValueChanged,
                  base::Unretained(this), characteristic_instance_id,
                  value.PassStorage()));
 }
 
+void WebBluetoothImpl::RemoteDescriptorValueChanged(
+    const mojo::String& descriptor_instance_id,
+    mojo::Array<uint8_t> value) {
+  // We post a task so that the event is fired after any pending promises have
+  // resolved.
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&WebBluetoothImpl::DispatchDescriptorValueChanged,
+                            base::Unretained(this), descriptor_instance_id,
+                            value.PassStorage()));
+}
+
+void WebBluetoothImpl::descriptorObjectRemoved(
+    const blink::WebString& descriptor_instance_id,
+    blink::WebBluetoothRemoteGATTDescriptor* descriptor) {
+  active_descriptors_.erase(descriptor_instance_id.utf8());
+}
+
+void WebBluetoothImpl::registerDescriptorObject(
+    const blink::WebString& descriptor_instance_id,
+    blink::WebBluetoothRemoteGATTDescriptor* descriptor) {
+  // TODO(dft): After the Bluetooth Tree is implemented, there will
+  // only be one object per descriptor. But for now we replace
+  // the previous object.
+  // https://crbug.com/xxx
+  active_descriptors_[descriptor_instance_id.utf8()] = descriptor;
+}
+
 void WebBluetoothImpl::OnRequestDeviceComplete(
     std::unique_ptr<blink::WebBluetoothRequestDeviceCallbacks> callbacks,
     const blink::mojom::WebBluetoothResult result,
     blink::mojom::WebBluetoothDevicePtr device) {
   if (result == blink::mojom::WebBluetoothResult::SUCCESS) {
     callbacks->onSuccess(base::MakeUnique<blink::WebBluetoothDeviceInit>(
         blink::WebString::fromUTF8(device->id.str()),
         device->name.is_null() ? blink::WebString()
                                : blink::WebString::fromUTF8(device->name)));
   } else {
@@ skipping 65 matching lines @@
               blink::WebString::fromUTF8(characteristics[i]->instance_id),
               blink::WebString::fromUTF8(characteristics[i]->uuid),
               characteristics[i]->properties);
     }
     callbacks->onSuccess(promise_characteristics);
   } else {
     callbacks->onError(ToInt32(result));
   }
 }
 
+void WebBluetoothImpl::OnGetDescriptorsComplete(
+    const blink::WebString& characteristic_instance_id,
+    std::unique_ptr<blink::WebBluetoothGetDescriptorsCallbacks> callbacks,
+    blink::mojom::WebBluetoothResult result,
+    mojo::Array<blink::mojom::WebBluetoothRemoteGATTDescriptorPtr>
+        descriptors) {
+  if (result == blink::mojom::WebBluetoothResult::SUCCESS) {
+    // TODO(dcheng): This WebVector should use smart pointers.
+    blink::WebVector<blink::WebBluetoothRemoteGATTDescriptorInit*>
+        promise_descriptors(descriptors.size());
+
+    for (size_t i = 0; i < descriptors.size(); i++) {
+      promise_descriptors[i] = new blink::WebBluetoothRemoteGATTDescriptorInit(
+          characteristic_instance_id,
+          blink::WebString::fromUTF8(descriptors[i]->instance_id),
+          blink::WebString::fromUTF8(descriptors[i]->uuid));
+    }
+    callbacks->onSuccess(promise_descriptors);
+  } else {
+    callbacks->onError(ToInt32(result));
+  }
+}
+
 void WebBluetoothImpl::OnReadValueComplete(
     std::unique_ptr<blink::WebBluetoothReadValueCallbacks> callbacks,
     blink::mojom::WebBluetoothResult result,
     mojo::Array<uint8_t> value) {
   if (result == blink::mojom::WebBluetoothResult::SUCCESS) {
     callbacks->onSuccess(value.PassStorage());
   } else {
     callbacks->onError(ToInt32(result));
   }
 }
@@ skipping 26 matching lines @@
 
 void WebBluetoothImpl::DispatchCharacteristicValueChanged(
     const std::string& characteristic_instance_id,
     const std::vector<uint8_t>& value) {
   auto active_iter = active_characteristics_.find(characteristic_instance_id);
   if (active_iter != active_characteristics_.end()) {
     active_iter->second->dispatchCharacteristicValueChanged(value);
   }
 }
 
+void WebBluetoothImpl::DispatchDescriptorValueChanged(
+    const std::string& descriptor_instance_id,
+    const std::vector<uint8_t>& value) {
+  auto active_iter = active_descriptors_.find(descriptor_instance_id);
+  if (active_iter != active_descriptors_.end()) {
+    active_iter->second->dispatchDescriptorValueChanged(value);
+  }
+}
+
 blink::mojom::WebBluetoothService& WebBluetoothImpl::GetWebBluetoothService() {
   if (!web_bluetooth_service_) {
     remote_interfaces_->GetInterface(mojo::GetProxy(&web_bluetooth_service_));
     // Create an associated interface ptr and pass it to the WebBluetoothService
     // so that it can send us events without us prompting.
     blink::mojom::WebBluetoothServiceClientAssociatedPtrInfo ptr_info;
     binding_.Bind(&ptr_info, web_bluetooth_service_.associated_group());
     web_bluetooth_service_->SetClient(std::move(ptr_info));
   }
   return *web_bluetooth_service_;
 }
 
 }  // namespace content