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// Copyright 2015 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 USBDevice_h
#define USBDevice_h
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptWrappable.h"
#include "bindings/modules/v8/UnionTypesModules.h"
#include "core/dom/ContextLifecycleObserver.h"
#include "core/dom/Document.h"
#include "core/page/PageLifecycleObserver.h"
#include "platform/heap/Handle.h"
#include "public/platform/modules/webusb/WebUSBDevice.h"
#include "public/platform/modules/webusb/WebUSBDeviceInfo.h"
#include "wtf/BitVector.h"
#include "wtf/Vector.h"
namespace blink {
class ScriptPromiseResolver;
class ScriptState;
class USBConfiguration;
class USBControlTransferParameters;
class USBDevice
: public GarbageCollectedFinalized<USBDevice>
, public ContextLifecycleObserver
, public ScriptWrappable
, public PageLifecycleObserver {
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(USBDevice);
DEFINE_WRAPPERTYPEINFO();
public:
using WebType = OwnPtr<WebUSBDevice>;
static USBDevice* create(PassOwnPtr<WebUSBDevice> device, ExecutionContext* context)
{
return new USBDevice(device, context);
}
static USBDevice* take(ScriptPromiseResolver*, PassOwnPtr<WebUSBDevice>);
explicit USBDevice(PassOwnPtr<WebUSBDevice>, ExecutionContext*);
virtual ~USBDevice() { }
const WebUSBDeviceInfo& info() const { return m_device->info(); }
void onDeviceOpenedOrClosed(bool);
void onConfigurationSelected(bool success, size_t configurationIndex);
void onInterfaceClaimedOrUnclaimed(bool claimed, size_t interfaceIndex);
void onAlternateInterfaceSelected(bool success, size_t interfaceIndex, size_t alternateIndex);
bool isInterfaceClaimed(size_t configurationIndex, size_t interfaceIndex) const;
size_t selectedAlternateInterface(size_t interfaceIndex) const;
// IDL exposed interface:
String guid() const { return info().guid; }
uint8_t usbVersionMajor() { return info().usbVersionMajor; }
uint8_t usbVersionMinor() { return info().usbVersionMinor; }
uint8_t usbVersionSubminor() { return info().usbVersionSubminor; }
uint8_t deviceClass() { return info().deviceClass; }
uint8_t deviceSubclass() const { return info().deviceSubclass; }
uint8_t deviceProtocol() const { return info().deviceProtocol; }
uint16_t vendorId() const { return info().vendorID; }
uint16_t productId() const { return info().productID; }
uint8_t deviceVersionMajor() const { return info().deviceVersionMajor; }
uint8_t deviceVersionMinor() const { return info().deviceVersionMinor; }
uint8_t deviceVersionSubminor() const { return info().deviceVersionSubminor; }
String manufacturerName() const { return info().manufacturerName; }
String productName() const { return info().productName; }
String serialNumber() const { return info().serialNumber; }
USBConfiguration* configuration() const;
HeapVector<Member<USBConfiguration>> configurations() const;
bool opened() const { return m_opened; }
ScriptPromise open(ScriptState*);
ScriptPromise close(ScriptState*);
ScriptPromise selectConfiguration(ScriptState*, uint8_t configurationValue);
ScriptPromise claimInterface(ScriptState*, uint8_t interfaceNumber);
ScriptPromise releaseInterface(ScriptState*, uint8_t interfaceNumber);
ScriptPromise selectAlternateInterface(ScriptState*, uint8_t interfaceNumber, uint8_t alternateSetting);
ScriptPromise controlTransferIn(ScriptState*, const USBControlTransferParameters& setup, unsigned length);
ScriptPromise controlTransferOut(ScriptState*, const USBControlTransferParameters& setup);
ScriptPromise controlTransferOut(ScriptState*, const USBControlTransferParameters& setup, const ArrayBufferOrArrayBufferView& data);
ScriptPromise clearHalt(ScriptState*, String direction, uint8_t endpointNumber);
ScriptPromise transferIn(ScriptState*, uint8_t endpointNumber, unsigned length);
ScriptPromise transferOut(ScriptState*, uint8_t endpointNumber, const ArrayBufferOrArrayBufferView& data);
ScriptPromise isochronousTransferIn(ScriptState*, uint8_t endpointNumber, Vector<unsigned> packetLengths);
ScriptPromise isochronousTransferOut(ScriptState*, uint8_t endpointNumber, const ArrayBufferOrArrayBufferView& data, Vector<unsigned> packetLengths);
ScriptPromise reset(ScriptState*);
// ContextLifecycleObserver interface.
void contextDestroyed() override;
// PageLifecycleObserver interface.
void pageVisibilityChanged() override;
DECLARE_TRACE();
private:
int findConfigurationIndex(uint8_t configurationValue) const;
int findInterfaceIndex(uint8_t interfaceNumber) const;
int findAlternateIndex(size_t interfaceIndex, uint8_t alternateSetting) const;
bool ensurePageVisible(ScriptPromiseResolver*) const;
bool ensureNoDeviceOrInterfaceChangeInProgress(ScriptPromiseResolver*) const;
bool ensureDeviceConfigured(ScriptPromiseResolver*) const;
bool ensureInterfaceClaimed(uint8_t interfaceNumber, ScriptPromiseResolver*) const;
bool ensureEndpointAvailable(bool inTransfer, uint8_t endpointNumber, ScriptPromiseResolver*) const;
bool anyInterfaceChangeInProgress() const;
bool convertControlTransferParameters(WebUSBDevice::TransferDirection, const USBControlTransferParameters&, WebUSBDevice::ControlTransferParameters*, ScriptPromiseResolver*) const;
void setEndpointsForInterface(size_t interfaceIndex, bool set);
OwnPtr<WebUSBDevice> m_device;
bool m_opened;
bool m_deviceStateChangeInProgress;
int m_configurationIndex;
WTF::BitVector m_claimedInterfaces;
WTF::BitVector m_interfaceStateChangeInProgress;
WTF::Vector<size_t> m_selectedAlternates;
WTF::BitVector m_inEndpoints;
WTF::BitVector m_outEndpoints;
};
} // namespace blink
#endif // USBDevice_h
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