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feat: support explorer sort and hidden on Window

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now playlist can use Windows Explorer's sort and hidden file display options to build it own for better browse experience on Windows
This commit is contained in:
yyc12345
2026-07-14 13:22:23 +08:00
parent a01d640c27
commit 81413b51da
4 changed files with 394 additions and 22 deletions
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2
CMakeLists.txt
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@@ -53,6 +53,7 @@ set (PPIC_CPP_FILES
app/exiv2wrapper.cpp
app/playlistmanager.cpp
app/fileopeneventhandler.cpp
app/winplaylistpatch.cpp
)
set (PPIC_HEADER_FILES
@@ -70,6 +71,7 @@ set (PPIC_HEADER_FILES
app/exiv2wrapper.h
app/playlistmanager.h
app/fileopeneventhandler.h
app/winplaylistpatch.h
)
set (PPIC_UI_FILES

61
app/playlistmanager.cpp
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@@ -3,6 +3,7 @@
// SPDX-License-Identifier: MIT
#include "playlistmanager.h"
#include "winplaylistpatch.h"
#include <QCollator>
#include <QDir>
@@ -71,32 +72,48 @@ bool PlaylistManager::loadSingleFilePlaylist(const QUrl& url) {
if (!checkUrl(url))
return false;
QFileInfo info(url.toLocalFile());
QDir dir(info.path());
QString currentFileName = info.fileName();
QStringList entryList = dir.entryList(
m_allowedSuffixes, QDir::Files | QDir::NoSymLinks, QDir::NoSort);
QCollator collator;
collator.setNumericMode(true);
std::sort(entryList.begin(), entryList.end(), collator);
QList<QUrl> playlist;
std::optional<qsizetype> idx = std::nullopt;
for (qsizetype i = 0; i < entryList.count(); i++) {
const QString &fileName = entryList.at(i);
const QString &oneEntry = dir.absoluteFilePath(fileName);
const QUrl &url = QUrl::fromLocalFile(oneEntry);
if (!checkUrl(url)) {
return false;
}
playlist.append(url);
if (fileName == currentFileName) {
idx = i;
#ifdef Q_OS_WIN
// In Windows, Qt approach can not aware Windows Explorer custom sort order.
// So we need to try using Win32 functions for fetching it at first
if (!WinPlaylistPatch::loadSingleFilePlaylist(url, m_allowedSuffixes, playlist, idx)) {
#endif // Q_OS_WIN
// If Windows approach is failed or we are not in Windows,
// use Qt way to process it.
QFileInfo info(url.toLocalFile());
QDir dir(info.path());
QString currentFileName = info.fileName();
QStringList entryList = dir.entryList(
m_allowedSuffixes, QDir::Files | QDir::NoSymLinks, QDir::NoSort);
QCollator collator;
collator.setNumericMode(true);
std::sort(entryList.begin(), entryList.end(), collator);
playlist.clear();
idx = std::nullopt;
for (qsizetype i = 0; i < entryList.count(); i++) {
const QString &fileName = entryList.at(i);
const QString &oneEntry = dir.absoluteFilePath(fileName);
const QUrl &url = QUrl::fromLocalFile(oneEntry);
if (!checkUrl(url)) {
return false;
}
playlist.append(url);
if (fileName == currentFileName) {
idx = i;
}
}
#ifdef Q_OS_WIN
}
#endif // Q_OS_WIN
setPlaylist(std::move(playlist), idx);
return true;

332
app/winplaylistpatch.cpp Normal file
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@@ -0,0 +1,332 @@
// SPDX-FileCopyrightText: 2026 yyc12345 <yyc12321@outlook.com>
//
// SPDX-License-Identifier: MIT
#include "winplaylistpatch.h"
#ifdef Q_OS_WIN
#include <QDir>
#include <QDebug>
#include <QFileInfo>
#include <QRegularExpression>
#include <optional>
#include <exdisp.h> // IShellWindows, CLSID_ShellWindows
#include <servprov.h> // IServiceProvider
#include <shlguid.h> // SID_STopLevelBrowser
#include <shlobj.h>
// YYC MARK:
// We use custom RAII wrappers instead of existing COM smart pointers because the
// project may be built with MinGW, which does not have good compatibility with
// CComPtr and Microsoft's WRL ComPtr (<wrl/client.h>).
// Furthermore, PIDLs are not COM objects (they are freed via ILFree, not Release),
// so no standard smart pointer covers them regardless of compiler.
/// RAII wrapper for COM initialization (CoInitialize / CoUninitialize).
/// Must be declared before any COM objects (e.g., ComPtr, UniquePidl) so that
/// CoUninitialize runs after all COM objects are released during scope exit.
class ComGuard {
public:
ComGuard() : m_hr(CoInitialize(nullptr)) {}
~ComGuard() { if (SUCCEEDED(m_hr)) CoUninitialize(); }
ComGuard(const ComGuard&) = delete;
ComGuard& operator=(const ComGuard&) = delete;
bool IsInitialized() const { return SUCCEEDED(m_hr); }
private:
HRESULT m_hr;
};
/// RAII wrapper for COM interface pointers.
template <typename T>
class ComPtr {
public:
ComPtr() = default;
ComPtr(std::nullptr_t) {}
~ComPtr() { Reset(); }
ComPtr(const ComPtr&) = delete;
ComPtr& operator=(const ComPtr&) = delete;
ComPtr(ComPtr&& other) noexcept : m_ptr(other.m_ptr) { other.m_ptr = nullptr; }
ComPtr& operator=(ComPtr&& other) noexcept {
if (this != &other) {
Reset();
m_ptr = other.m_ptr;
other.m_ptr = nullptr;
}
return *this;
}
T* operator->() const { return m_ptr; }
T* Get() const { return m_ptr; }
T** GetAddressOf() { return &m_ptr; }
explicit operator bool() const { return m_ptr != nullptr; }
void Reset() { if (m_ptr) { m_ptr->Release(); m_ptr = nullptr; } }
private:
T* m_ptr = nullptr;
};
/// RAII wrapper for PIDL (Item ID List).
class UniquePidl {
public:
UniquePidl() = default;
explicit UniquePidl(LPITEMIDLIST pidl) : m_pidl(pidl) {}
~UniquePidl() { Reset(); }
UniquePidl(const UniquePidl&) = delete;
UniquePidl& operator=(const UniquePidl&) = delete;
UniquePidl(UniquePidl&& other) noexcept : m_pidl(other.m_pidl) { other.m_pidl = nullptr; }
UniquePidl& operator=(UniquePidl&& other) noexcept {
if (this != &other) {
Reset();
m_pidl = other.m_pidl;
other.m_pidl = nullptr;
}
return *this;
}
LPCITEMIDLIST Get() const { return m_pidl; }
LPITEMIDLIST* GetAddressOf() { return &m_pidl; }
explicit operator bool() const { return m_pidl != nullptr; }
void Reset() { if (m_pidl) { ILFree(m_pidl); m_pidl = nullptr; } }
private:
LPITEMIDLIST m_pidl = nullptr;
};
/// Outputs a diagnostic warning for debugging Windows Explorer integration failures.
static void ReportError(const QString& detail)
{
qWarning("Windows Explorer file list fetch error: %s",
qPrintable(detail));
}
/// Normalizes a Windows directory path for case-insensitive comparison:
/// converts to native separators, lowercases, and ensures a trailing backslash.
static QString NormalizePath(const QString& path)
{
QString result = QDir::toNativeSeparators(path).toLower();
if (!result.endsWith(QChar('\\'))) {
result += QChar('\\');
}
return result;
}
/// Checks whether the Explorer window represented by the given IDispatch is
/// displaying the target folder. Returns its IFolderView2 on match, or null.
static ComPtr<IFolderView2> TryMatchWindow(IDispatch* dispatch, const QString& normalizedTarget)
{
// Navigate: IDispatch -> IServiceProvider -> IShellBrowser.
ComPtr<IServiceProvider> serviceProvider;
if (FAILED(dispatch->QueryInterface(IID_PPV_ARGS(serviceProvider.GetAddressOf())))) {
return nullptr;
}
ComPtr<IShellBrowser> shellBrowser;
if (FAILED(serviceProvider->QueryService(SID_STopLevelBrowser,
IID_PPV_ARGS(shellBrowser.GetAddressOf())))) {
return nullptr;
}
// IShellBrowser -> active IShellView.
ComPtr<IShellView> shellView;
if (FAILED(shellBrowser->QueryActiveShellView(shellView.GetAddressOf()))) {
return nullptr;
}
// Retrieve the folder's path via IPersistIDList.
ComPtr<IPersistIDList> persistIdList;
if (FAILED(shellView->QueryInterface(IID_PPV_ARGS(persistIdList.GetAddressOf())))) {
return nullptr;
}
UniquePidl folderPidl;
if (FAILED(persistIdList->GetIDList(folderPidl.GetAddressOf()))) {
return nullptr;
}
PWSTR pathStr = nullptr;
if (FAILED(SHGetNameFromIDList(folderPidl.Get(), SIGDN_DESKTOPABSOLUTEPARSING, &pathStr))) {
return nullptr;
}
QString windowPath = NormalizePath(QString::fromWCharArray(pathStr));
CoTaskMemFree(pathStr);
if (windowPath != normalizedTarget) {
return nullptr;
}
// Path matches — query IFolderView2 from the ShellView.
ComPtr<IFolderView2> folderView2;
if (FAILED(shellView->QueryInterface(IID_PPV_ARGS(folderView2.GetAddressOf())))) {
return nullptr;
}
return folderView2;
}
/// Tries to find a live Explorer window that is currently displaying the given
/// folder path. Returns the IFolderView2 from that window, or an empty ComPtr.
///
/// Explorer's sort order is stored only in the running Explorer process's memory.
/// Creating a new shell view via IShellFolder::CreateViewObject yields a default
/// sort (always by name), so we must find the actual live IFolderView2 instead.
///
/// Reference:
/// - https://www.stephenli.ca/getting-windows-explorers-current-directory-sort-order
/// - https://github.com/d2phap/ImageGlass/blob/75a296287f338edcf409eee3917531b25ff5d927/v9/Components/ImageGlass.Base/FileSystem/FileFinder.cs
/// - NuGet Package: D2Phap.EggShell
static ComPtr<IFolderView2> FindLiveFolderView(const QString& targetFolderPath)
{
// Create the Shell windows collection (all open Explorer windows).
ComPtr<IShellWindows> shellWindows;
if (FAILED(CoCreateInstance(CLSID_ShellWindows, nullptr, CLSCTX_ALL,
IID_PPV_ARGS(shellWindows.GetAddressOf())))) {
ReportError("Failed to create IShellWindows instance");
return nullptr;
}
QString normalizedTarget = NormalizePath(targetFolderPath);
// 1. Try the Desktop window first — it may contain the file the user opened.
{
VARIANT varLoc;
VariantInit(&varLoc);
varLoc.vt = VT_I4;
varLoc.lVal = 0;
VARIANT varLocRoot;
VariantInit(&varLocRoot);
long desktopHwnd = 0;
ComPtr<IDispatch> desktopDispatch;
HRESULT findHr = shellWindows->FindWindowSW(
&varLoc, &varLocRoot, SWC_DESKTOP,
&desktopHwnd, SWFO_NEEDDISPATCH,
desktopDispatch.GetAddressOf());
VariantClear(&varLoc);
VariantClear(&varLocRoot);
if (SUCCEEDED(findHr) && desktopDispatch) {
ComPtr<IFolderView2> result = TryMatchWindow(desktopDispatch.Get(), normalizedTarget);
if (result) return result;
}
}
// 2. Iterate regular Explorer windows.
LONG count = 0;
shellWindows->get_Count(&count);
for (LONG i = 0; i < count; i++) {
VARIANT varIndex;
VariantInit(&varIndex);
varIndex.vt = VT_I4;
varIndex.lVal = i;
ComPtr<IDispatch> dispatch;
HRESULT itemHr = shellWindows->Item(varIndex, dispatch.GetAddressOf());
VariantClear(&varIndex);
if (FAILED(itemHr) || !dispatch) {
continue;
}
ComPtr<IFolderView2> result = TryMatchWindow(dispatch.Get(), normalizedTarget);
if (result) return result;
}
return nullptr;
}
bool WinPlaylistPatch::loadSingleFilePlaylist(
const QUrl &url, const QStringList &allowedSuffixes, QList<QUrl> &playlist,
std::optional<qsizetype> &indexHint) {
QFileInfo info(url.toLocalFile());
QString folderPath = info.path();
QString currentFileName = info.fileName();
// Pre-compile wildcard suffix filters into regular expressions for performance.
QList<QRegularExpression> nameRegexps;
for (const QString &pattern : allowedSuffixes) {
nameRegexps.append(QRegularExpression(
QRegularExpression::wildcardToRegularExpression(pattern),
QRegularExpression::CaseInsensitiveOption));
}
// Initialize COM. The ComGuard must be declared before any COM objects
// below so that CoUninitialize runs after all of them are released.
ComGuard comGuard;
if (!comGuard.IsInitialized()) {
ReportError("COM initialization failed");
return false;
}
// Find a live Explorer window that is currently displaying the target folder.
ComPtr<IFolderView2> folderView2 = FindLiveFolderView(folderPath);
if (!folderView2) {
ReportError("No open Explorer window matches the folder: " + folderPath);
return false;
}
// Get items already sorted in Explorer's view order, as an IShellItemArray.
// SVGIO_ALLVIEW returns all items; SVGIO_FLAG_VIEWORDER respects the view's sort.
ComPtr<IShellItemArray> itemArray;
if (FAILED(folderView2->Items(SVGIO_ALLVIEW | SVGIO_FLAG_VIEWORDER,
IID_PPV_ARGS(itemArray.GetAddressOf())))) {
ReportError("IFolderView2::Items(SVGIO_ALLVIEW | SVGIO_FLAG_VIEWORDER) failed");
return false;
}
DWORD itemCount = 0;
itemArray->GetCount(&itemCount);
// Enumerate sorted items, filter by pattern, and build the playlist.
for (DWORD i = 0; i < itemCount; i++) {
ComPtr<IShellItem> shellItem;
if (FAILED(itemArray->GetItemAt(i, shellItem.GetAddressOf()))) {
continue;
}
// Get the full parsing path of the item.
PWSTR pathStr = nullptr;
if (FAILED(shellItem->GetDisplayName(SIGDN_DESKTOPABSOLUTEPARSING, &pathStr)) || !pathStr) {
continue;
}
QString filePath = QString::fromWCharArray(pathStr);
CoTaskMemFree(pathStr);
// Skip directories — the view may include folders alongside files.
QFileInfo fileInfo(filePath);
if (!fileInfo.isFile()) {
continue;
}
QString fileName = fileInfo.fileName();
// Match against compiled wildcard patterns.
bool matches = nameRegexps.isEmpty();
for (const QRegularExpression &re : std::as_const(nameRegexps)) {
if (re.match(fileName).hasMatch()) {
matches = true;
break;
}
}
if (!matches) {
continue;
}
playlist.append(QUrl::fromLocalFile(filePath));
if (fileName == currentFileName) {
indexHint = playlist.size() - 1;
}
}
return true;
}
#endif // Q_OS_WIN

21
app/winplaylistpatch.h Normal file
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@@ -0,0 +1,21 @@
// SPDX-FileCopyrightText: 2026 yyc12345 <yyc12321@outlook.com>
//
// SPDX-License-Identifier: MIT
#pragma once
#include <QtSystemDetection>
#ifdef Q_OS_WIN
#include <QUrl>
class WinPlaylistPatch
{
public:
static bool loadSingleFilePlaylist(const QUrl &url,
const QStringList &allowedSuffixes,
QList<QUrl> &playlist,
std::optional<qsizetype> &indexHint);
};
#endif // Q_OS_WIN