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#include "stdafx.h"
#include "trayjuggler.h"
#include <algorithm>
namespace
{
template<typename T>
void AppendBuffer(std::vector<uint8_t> &buffer, const T &t)
{
const auto prevSize = buffer.size();
buffer.resize(prevSize + sizeof(T));
memcpy(&buffer[prevSize], &t, sizeof(T));
}
inline wchar_t rot13(wchar_t c)
{
if (c >= L'A' && c <= L'Z')
{
auto temp = (wchar_t)(c + 13);
return (temp <= L'Z' ? temp : (wchar_t)(L'A' + (temp - L'Z' - 1)));
}
else if (c >= L'a' && c <= L'z')
{
auto temp = (wchar_t)(c + 13);
return (temp <= L'z' ? temp : (wchar_t)(L'a' + (temp - L'z' - 1)));
}
return c;
}
} // anonymous namespace
TrayJuggler::TrayJuggler(const TrayParser &parser)
{
m_header = parser.getHeader();
for (const auto &record : parser.getRecords())
{
m_records.push_back(std::make_shared<ICON_STREAMS_RECORD>(record));
}
}
std::shared_ptr<ICON_STREAMS_RECORD> TrayJuggler::findRecord(const std::wstring &path) const
{
for (const auto &record : m_records)
{
const auto appPath = DecodeString(record->ApplicationPath, sizeof(record->ApplicationPath));
if (nullptr != wcsstr(appPath.c_str(), path.c_str()))
{
return record;
}
}
return std::shared_ptr<ICON_STREAMS_RECORD>();
}
uint32_t TrayJuggler::getNextFreeOrdinal(TraySearchGroup searchGroup) const
{
uint32_t highestOrdinal = 0;
bool noMatchingRecord = true;
enumerateRecords([&](std::shared_ptr<ICON_STREAMS_RECORD> record)
{
if ((TraySearchGroup::Visible == searchGroup && ICON_STREAMS_VISIBILITY::SHOW_ICON_AND_NOTIFICATIONS == record->Visibility)
|| (TraySearchGroup::Hidden == searchGroup) && ICON_STREAMS_VISIBILITY::SHOW_ICON_AND_NOTIFICATIONS != record->Visibility)
{
noMatchingRecord = false;
if (record->Ordinal > highestOrdinal)
{
highestOrdinal = record->Ordinal;
}
}
return true;
});
return (noMatchingRecord ? 0 : highestOrdinal + 1);
}
void TrayJuggler::injectRecord(const ICON_STREAMS_RECORD &record)
{
SYSTEMTIME time;
GetSystemTime(&time);
auto newRecord = std::make_shared<ICON_STREAMS_RECORD>(record);
{
newRecord->Visibility = ICON_STREAMS_VISIBILITY::SHOW_ICON_AND_NOTIFICATIONS;
newRecord->YearCreated = time.wYear;
newRecord->MonthCreated = time.wMonth;
// TODO: Meaning of this bool?
newRecord->u7 = 0;
newRecord->ImagelistId = 0xFFFFFFFF;
FILETIME fileTime;
SystemTimeToFileTime(&time, &fileTime);
newRecord->Time1 = fileTime;
newRecord->Time2.dwHighDateTime = 0;
newRecord->Time2.dwLowDateTime = 0;
newRecord->Ordinal = getNextFreeOrdinal(TraySearchGroup::Visible);
}
//
// By default, the first few records will always be Microsoft icons such as
// battery, networking, sounds.
//
// These have a visibility of SHOW_ICON_AND_NOTIFICATIONS.
//
// There can be other icons with visibility SHOW_ICON_AND_NOTIFICATIONS towards
// the end of the array. But these icons typically don't have a valid ImagelistId.
//
// In the end, the ordering of records doesn't seem to matter.
//
// Insert new record at the end.
//
m_records.push_back(newRecord);
}
void TrayJuggler::promoteRecord(std::shared_ptr<ICON_STREAMS_RECORD> record)
{
if (ICON_STREAMS_VISIBILITY::SHOW_ICON_AND_NOTIFICATIONS == record->Visibility)
{
// Abort if the icon is already visible.
return;
}
record->Visibility = ICON_STREAMS_VISIBILITY::SHOW_ICON_AND_NOTIFICATIONS;
record->Ordinal = getNextFreeOrdinal(TraySearchGroup::Visible);
SYSTEMTIME time;
GetSystemTime(&time);
FILETIME fileTime;
SystemTimeToFileTime(&time, &fileTime);
record->Time1 = fileTime;
}
bool TrayJuggler::enumerateRecords(std::function<bool(std::shared_ptr<ICON_STREAMS_RECORD> record)> callback) const
{
for (auto record : m_records)
{
if (false == callback(record))
{
return false;
}
}
return true;
}
std::vector<uint8_t> TrayJuggler::pack() const
{
std::vector<uint8_t> blob;
const auto requiredSize = (m_records.size() * sizeof(ICON_STREAMS_RECORD))
+ sizeof(ICON_STREAMS_HEADER);
blob.reserve(requiredSize);
// Use original header as a template.
ICON_STREAMS_HEADER header = m_header;
header.HeaderSize = sizeof(header);
header.NumberRecords = static_cast<uint32_t>(m_records.size());
header.OffsetFirstRecord = sizeof(header);
AppendBuffer(blob, header);
for (const auto record : m_records)
{
AppendBuffer(blob, *record);
}
return blob;
}
//static
std::wstring TrayJuggler::DecodeString(const uint16_t *encoded, size_t bufferSize)
{
const auto numCharacters = bufferSize / sizeof(uint16_t);
std::wstring decoded;
decoded.reserve(numCharacters);
const auto end = encoded + numCharacters;
for (; encoded != end; ++encoded)
{
auto source = (wchar_t)*encoded;
if (L'\0' == source)
{
break;
}
decoded.push_back(rot13(source));
}
return decoded;
}
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