332 lines
8.4 KiB
C++
332 lines
8.4 KiB
C++
/* This file is part of Clementine.
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "wmdmlister.h"
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#include "wmdmthread.h"
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#include "core/utilities.h"
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#include <icomponentauthenticate.h>
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#include <objbase.h>
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#include <mswmdm_i.c>
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#include <boost/bind.hpp>
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#include <boost/scoped_array.hpp>
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#include <QPixmap>
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#include <QStringList>
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#include <QtDebug>
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QString WmdmLister::CanonicalNameToId(const QString& canonical_name) {
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return "wmdm/" + canonical_name;
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}
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QString WmdmLister::DeviceInfo::unique_id() const {
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return WmdmLister::CanonicalNameToId(canonical_name_);
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}
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WmdmLister::WmdmLister()
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: notification_cookie_(0)
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{
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}
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WmdmLister::~WmdmLister() {
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Q_ASSERT(!thread_);
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}
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void WmdmLister::Init() {
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thread_.reset(new WmdmThread);
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// Register for notifications
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IConnectionPointContainer* cp_container = NULL;
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thread_->manager()->QueryInterface(IID_IConnectionPointContainer, (void**)&cp_container);
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IConnectionPoint* cp = NULL;
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cp_container->FindConnectionPoint(IID_IWMDMNotification, &cp);
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cp->Advise(this, ¬ification_cookie_);
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cp->Release();
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cp_container->Release();
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// Fetch the initial list of devices
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IWMDMEnumDevice* device_it = NULL;
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if (thread_->manager()->EnumDevices2(&device_it)) {
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qWarning() << "Error querying WMDM devices";
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return;
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}
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// Iterate through the devices
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QMap<QString, DeviceInfo> devices;
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forever {
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IWMDMDevice* device = NULL;
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IWMDMDevice2* device2 = NULL;
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ULONG fetched = 0;
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if (device_it->Next(1, &device, &fetched) || fetched != 1)
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break;
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if (device->QueryInterface(IID_IWMDMDevice2, (void**)&device2)) {
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qWarning() << "Error getting IWMDMDevice2 from device";
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device->Release();
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continue;
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}
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device->Release();
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DeviceInfo info = ReadDeviceInfo(device2);
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if (info.is_suitable_)
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devices[info.unique_id()] = info;
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else
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device2->Release();
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}
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device_it->Release();
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// Update the internal cache
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{
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QMutexLocker l(&mutex_);
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devices_ = devices;
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}
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// Notify about the changes
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foreach (const QString& id, devices.keys()) {
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emit DeviceAdded(id);
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}
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}
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void WmdmLister::ReallyShutdown() {
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// Unregister for notifications
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IConnectionPointContainer* cp_container;
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thread_->manager()->QueryInterface(IID_IConnectionPointContainer, (void**)&cp_container);
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IConnectionPoint* cp;
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cp_container->FindConnectionPoint(IID_IWMDMNotification, &cp);
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cp->Release();
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cp_container->Release();
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thread_.reset();
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}
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void WmdmLister::ShutDown() {
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// COM shutdown must be done in the original thread.
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metaObject()->invokeMethod(this, "ReallyShutdown", Qt::BlockingQueuedConnection);
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}
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template <typename F>
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qint64 GetSpaceValue(F f) {
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DWORD low, high;
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f(&low, &high);
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return (qint64)high << 32 | (qint64)low;
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}
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WmdmLister::DeviceInfo WmdmLister::ReadDeviceInfo(IWMDMDevice2* device) {
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DeviceInfo ret;
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ret.device_ = device;
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// Get text strings
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const int max_size = 512;
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wchar_t buf[max_size];
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device->GetName(buf, max_size);
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ret.name_ = QString::fromWCharArray(buf);
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device->GetManufacturer(buf, max_size);
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ret.manufacturer_ = QString::fromWCharArray(buf);
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device->GetCanonicalName(buf, max_size);
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ret.canonical_name_ = QString::fromWCharArray(buf).toLower();
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// Get the type and check whether it has storage
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DWORD type = 0;
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device->GetType(&type);
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if (type & WMDM_DEVICE_TYPE_STORAGE)
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ret.is_suitable_ = true;
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// Get the icon
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HICON icon;
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device->GetDeviceIcon((ULONG*)&icon);
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ret.icon_ = QPixmap::fromWinHICON(icon);
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DestroyIcon(icon);
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// Get the main (first) storage for the device
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IWMDMEnumStorage* storage_it = NULL;
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if (device->EnumStorage(&storage_it) == S_OK && storage_it) {
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ULONG storage_fetched = 0;
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IWMDMStorage* storage;
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if (storage_it->Next(1, &storage, &storage_fetched) == S_OK) {
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if (storage->QueryInterface(IID_IWMDMStorage2, (void**)&ret.storage_)) {
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qWarning() << "Error getting IWMDMStorage2 from storage";
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} else {
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// Get free space information
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IWMDMStorageGlobals* globals;
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ret.storage_->GetStorageGlobals(&globals);
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ret.total_bytes_ = GetSpaceValue(boost::bind(&IWMDMStorageGlobals::GetTotalSize, globals, _1, _2));
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ret.free_bytes_ = GetSpaceValue(boost::bind(&IWMDMStorageGlobals::GetTotalFree, globals, _1, _2));
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ret.free_bytes_ -= GetSpaceValue(boost::bind(&IWMDMStorageGlobals::GetTotalBad, globals, _1, _2));
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globals->Release();
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}
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storage->Release();
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}
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storage_it->Release();
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}
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return ret;
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}
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QStringList WmdmLister::DeviceUniqueIDs() {
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QMutexLocker l(&mutex_);
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return devices_.keys();
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}
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QVariantList WmdmLister::DeviceIcons(const QString& id) {
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QPixmap pixmap = LockAndGetDeviceInfo(id, &DeviceInfo::icon_);
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if (pixmap.isNull())
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return QVariantList();
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return QVariantList() << pixmap;
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}
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QString WmdmLister::DeviceManufacturer(const QString& id) {
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return LockAndGetDeviceInfo(id, &DeviceInfo::manufacturer_);
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}
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QString WmdmLister::DeviceModel(const QString& id) {
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return LockAndGetDeviceInfo(id, &DeviceInfo::name_);
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}
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quint64 WmdmLister::DeviceCapacity(const QString& id) {
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return LockAndGetDeviceInfo(id, &DeviceInfo::total_bytes_);
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}
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quint64 WmdmLister::DeviceFreeSpace(const QString& id) {
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return LockAndGetDeviceInfo(id, &DeviceInfo::free_bytes_);
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}
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QVariantMap WmdmLister::DeviceHardwareInfo(const QString& id) {
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return QVariantMap();
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}
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QString WmdmLister::MakeFriendlyName(const QString& id) {
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QMutexLocker l(&mutex_);
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if (!devices_.contains(id))
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return QString();
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const DeviceInfo& info = devices_[id];
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if (info.manufacturer_.isEmpty() || info.manufacturer_ == "Unknown")
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return info.name_;
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return info.manufacturer_ + " " + info.name_;
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}
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QList<QUrl> WmdmLister::MakeDeviceUrls(const QString& id) {
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QUrl url;
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url.setScheme("wmdm");
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url.setPath(id);
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return QList<QUrl>() << url;
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}
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void WmdmLister::UnmountDevice(const QString& id) {
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}
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void WmdmLister::UpdateDeviceFreeSpace(const QString& id) {
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}
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HRESULT WmdmLister::WMDMMessage(DWORD message_type, LPCWSTR name) {
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QString canonical_name = QString::fromWCharArray(name).toLower();
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switch (message_type) {
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case WMDM_MSG_DEVICE_ARRIVAL: WMDMDeviceAdded(canonical_name); break;
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case WMDM_MSG_DEVICE_REMOVAL: WMDMDeviceRemoved(canonical_name); break;
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}
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return S_OK;
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}
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void WmdmLister::WMDMDeviceAdded(const QString& canonical_name) {
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ScopedWCharArray name(canonical_name);
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IWMDMDevice* device = NULL;
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if (thread_->manager()->GetDeviceFromCanonicalName(name, &device)) {
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qWarning() << "Error in GetDeviceFromCanonicalName for" << canonical_name;
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return;
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}
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IWMDMDevice2* device2 = NULL;
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if (device->QueryInterface(IID_IWMDMDevice2, (void**) &device2)) {
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qWarning() << "Error getting IWMDMDevice2 from device";
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device->Release();
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return;
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}
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device->Release();
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DeviceInfo info = ReadDeviceInfo(device2);
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if (info.is_suitable_) {
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QString id = info.unique_id();
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{
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QMutexLocker l(&mutex_);
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devices_[id] = info;
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}
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emit DeviceAdded(id);
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} else {
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device2->Release();
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}
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}
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void WmdmLister::WMDMDeviceRemoved(const QString& canonical_name) {
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QString id = CanonicalNameToId(canonical_name);
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{
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QMutexLocker l(&mutex_);
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if (!devices_.contains(id))
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return;
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devices_[id].device_->Release();
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devices_[id].storage_->Release();
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devices_.remove(id);
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}
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emit DeviceRemoved(id);
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}
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LONG WmdmLister::QueryInterface(REFIID riid, void** object) {
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*object = 0;
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if (riid == IID_IUnknown)
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*object = (IUnknown*) this;
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else if (riid == IID_IWMDMNotification)
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*object = (IWMDMNotification*) this;
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else
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return E_NOINTERFACE;
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return S_OK;
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}
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ULONG WmdmLister::AddRef() {
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return 0;
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}
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ULONG WmdmLister::Release() {
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return 0;
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}
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QString WmdmLister::DeviceCanonicalName(const QString& id) {
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return LockAndGetDeviceInfo(id, &DeviceInfo::canonical_name_);
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}
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