129 lines
3.5 KiB
Plaintext
129 lines
3.5 KiB
Plaintext
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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* Copyright 2018-2021, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry 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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*
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* Strawberry 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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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "macfslistener.h"
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#include "config.h"
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#include <QTimer>
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#include <CoreFoundation/CFArray.h>
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#include <Foundation/NSArray.h>
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#include <Foundation/NSString.h>
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#include "core/logging.h"
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#include "scoped_nsobject.h"
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MacFSListener::MacFSListener(QObject *parent)
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: FileSystemWatcherInterface(parent),
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run_loop_(nullptr),
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stream_(nullptr),
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update_timer_(new QTimer(this)) {
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update_timer_->setSingleShot(true);
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update_timer_->setInterval(2000);
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QObject::connect(update_timer_, &QTimer::timeout, this, &MacFSListener::UpdateStream);
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}
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void MacFSListener::Init() { run_loop_ = CFRunLoopGetCurrent(); }
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void MacFSListener::EventStreamCallback(ConstFSEventStreamRef stream, void *user_data, size_t num_events, void *event_paths, const FSEventStreamEventFlags event_flags[], const FSEventStreamEventId event_ids[]) {
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Q_UNUSED(stream);
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Q_UNUSED(event_flags);
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Q_UNUSED(event_ids);
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MacFSListener *me = reinterpret_cast<MacFSListener*>(user_data);
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char **paths = reinterpret_cast<char**>(event_paths);
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for (size_t i = 0; i < num_events; ++i) {
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QString path = QString::fromUtf8(paths[i]);
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qLog(Debug) << "Something changed at:" << path;
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while (path.endsWith(QLatin1Char('/'))) {
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path.chop(1);
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}
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emit me->PathChanged(path);
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}
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}
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void MacFSListener::AddPath(const QString &path) {
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Q_ASSERT(run_loop_);
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paths_.insert(path);
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UpdateStreamAsync();
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}
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void MacFSListener::RemovePath(const QString &path) {
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Q_ASSERT(run_loop_);
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paths_.remove(path);
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UpdateStreamAsync();
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}
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void MacFSListener::Clear() {
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paths_.clear();
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UpdateStreamAsync();
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}
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void MacFSListener::UpdateStreamAsync() {
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update_timer_->start();
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}
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void MacFSListener::UpdateStream() {
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if (stream_) {
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FSEventStreamStop(stream_);
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FSEventStreamInvalidate(stream_);
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FSEventStreamRelease(stream_);
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stream_ = nullptr;
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}
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if (paths_.empty()) {
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return;
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}
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scoped_nsobject<NSMutableArray> array([ [NSMutableArray alloc] init]);
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for (const QString &path : paths_) {
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scoped_nsobject<NSString> string([ [NSString alloc] initWithUTF8String:path.toUtf8().constData()]);
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[array addObject:string.get()];
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}
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FSEventStreamContext context;
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memset(&context, 0, sizeof(context));
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context.info = this;
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CFAbsoluteTime latency = 1.0;
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stream_ = FSEventStreamCreate(nullptr, &EventStreamCallback, &context, // Copied
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reinterpret_cast<CFArrayRef>(array.get()),
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kFSEventStreamEventIdSinceNow, latency,
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kFSEventStreamCreateFlagNone);
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FSEventStreamScheduleWithRunLoop(stream_, run_loop_, kCFRunLoopDefaultMode);
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FSEventStreamStart(stream_);
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}
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