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// 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 "device/hid/hid_device_filter.h"
#include "device/hid/hid_device_info.h"
namespace device {
HidDeviceFilter::HidDeviceFilter()
: vendor_id_set_(false),
product_id_set_(false),
usage_page_set_(false),
usage_set_(false) {
}
HidDeviceFilter::~HidDeviceFilter() {
}
void HidDeviceFilter::SetVendorId(uint16_t vendor_id) {
vendor_id_set_ = true;
vendor_id_ = vendor_id;
}
void HidDeviceFilter::SetProductId(uint16_t product_id) {
product_id_set_ = true;
product_id_ = product_id;
}
void HidDeviceFilter::SetUsagePage(uint16_t usage_page) {
usage_page_set_ = true;
usage_page_ = usage_page;
}
void HidDeviceFilter::SetUsage(uint16_t usage) {
usage_set_ = true;
usage_ = usage;
}
bool HidDeviceFilter::Matches(
scoped_refptr<const HidDeviceInfo> device_info) const {
if (vendor_id_set_) {
if (device_info->vendor_id() != vendor_id_) {
return false;
}
if (product_id_set_ && device_info->product_id() != product_id_) {
return false;
}
}
if (usage_page_set_) {
bool found_matching_collection = false;
for (const HidCollectionInfo& collection : device_info->collections()) {
if (collection.usage.usage_page != usage_page_) {
continue;
}
if (usage_set_ && collection.usage.usage != usage_) {
continue;
}
found_matching_collection = true;
}
if (!found_matching_collection) {
return false;
}
}
return true;
}
// static
bool HidDeviceFilter::MatchesAny(scoped_refptr<const HidDeviceInfo> device_info,
const std::vector<HidDeviceFilter>& filters) {
for (const HidDeviceFilter& filter : filters) {
if (filter.Matches(device_info)) {
return true;
}
}
return false;
}
} // namespace device
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