From 566d1508cbf2ec79a708c70bf2b1836be6ea109d Mon Sep 17 00:00:00 2001
From: LXQt Packaging Team <pkg-lxqt-devel@lists.alioth.debian.org>
Date: Sat, 17 Aug 2019 12:00:08 +0100
Subject: [PATCH] workaround-missed-file-monitoring

Last-Update: 2019-06-08


Gbp-Pq: Name workaround-missed-file-monitoring.patch
---
 src/core/folder.cpp   | 18 ++++++++++++++++++
 src/core/folder.h     |  4 ++++
 src/fileoperation.cpp | 22 ++++++++++++++++++++++
 src/utilities.cpp     | 16 +++++++++++++++-
 4 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/src/core/folder.cpp b/src/core/folder.cpp
index adbb480..01e1297 100644
--- a/src/core/folder.cpp
+++ b/src/core/folder.cpp
@@ -112,6 +112,20 @@ std::shared_ptr<Folder> Folder::fromPath(const FilePath& path) {
     return folder;
 }
 
+// static
+// Checks if this is the path of a folder in use.
+std::shared_ptr<Folder> Folder::findByPath(const FilePath& path) {
+    std::lock_guard<std::mutex> lock{mutex_};
+    auto it = cache_.find(path);
+    if(it != cache_.end()) {
+        auto folder = it->second.lock();
+        if(folder) {
+            return folder;
+        }
+    }
+    return nullptr;
+}
+
 bool Folder::makeDirectory(const char* /*name*/, GError** /*error*/) {
     // TODO:
     // FIXME: what the API is used for in the original libfm C API?
@@ -142,6 +156,10 @@ bool Folder::isEmpty() const {
     return files_.empty();
 }
 
+bool Folder::hasFileMonitor() const {
+    return (dirMonitor_ != nullptr);
+}
+
 FileInfoList Folder::files() const {
     FileInfoList ret;
     ret.reserve(files_.size());
diff --git a/src/core/folder.h b/src/core/folder.h
index 098d218..1c257e9 100644
--- a/src/core/folder.h
+++ b/src/core/folder.h
@@ -56,6 +56,8 @@ public:
 
     static std::shared_ptr<Folder> fromPath(const FilePath& path);
 
+    static std::shared_ptr<Folder> findByPath(const FilePath& path);
+
     bool makeDirectory(const char* name, GError** error);
 
     void queryFilesystemInfo();
@@ -74,6 +76,8 @@ public:
 
     bool isEmpty() const;
 
+    bool hasFileMonitor() const;
+
     FileInfoList files() const;
 
     const FilePath& path() const;
diff --git a/src/fileoperation.cpp b/src/fileoperation.cpp
index 5db818b..683d092 100644
--- a/src/fileoperation.cpp
+++ b/src/fileoperation.cpp
@@ -298,6 +298,8 @@ void FileOperation::onJobFinish() {
     }
     Q_EMIT finished();
 
+    bool tryReload = true;
+
     // special handling for trash job
     if(type_ == Trash && !job_->isCancelled()) {
         auto trashJob = static_cast<Fm::TrashJob*>(job_);
@@ -313,6 +315,26 @@ void FileOperation::onJobFinish() {
                                         "Do you want to delete them instead?")) == QMessageBox::Yes) {
                 deleteFiles(std::move(unsupportedFiles), false);
             }
+            tryReload = false;
+        }
+    }
+
+    // reload the containing folder if it is in use but does not have a file monitor
+    if(tryReload) {
+        if(!srcPaths_.empty() && (type_ == Trash || type_ == Delete || type_ == Move)) {
+            auto parent_path = srcPaths_[0].parent();
+            if(parent_path != destPath_) { // otherwise, it will be done below
+                auto folder = Fm::Folder::findByPath(parent_path);
+                if(folder && folder->isValid() && folder->isLoaded() && !folder->hasFileMonitor()) {
+                    folder->reload();
+                }
+            }
+        }
+        if(destPath_) {
+            auto folder = Fm::Folder::findByPath(destPath_);
+            if(folder && folder->isValid() && folder->isLoaded() && !folder->hasFileMonitor()) {
+                folder->reload();
+            }
         }
     }
 
diff --git a/src/utilities.cpp b/src/utilities.cpp
index 9da7a55..18e2b2f 100644
--- a/src/utilities.cpp
+++ b/src/utilities.cpp
@@ -157,7 +157,8 @@ bool isCurrentPidClipboardData(const QMimeData& data) {
 }
 
 bool changeFileName(const Fm::FilePath& filePath, const QString& newName, QWidget* parent, bool showMessage) {
-    auto dest = filePath.parent().child(newName.toLocal8Bit().constData());
+    auto parent_path = filePath.parent();
+    auto dest = parent_path.child(newName.toLocal8Bit().constData());
     Fm::GErrorPtr err;
     if(!g_file_move(filePath.gfile().get(), dest.gfile().get(),
                     GFileCopyFlags(G_FILE_COPY_ALL_METADATA |
@@ -170,6 +171,13 @@ bool changeFileName(const Fm::FilePath& filePath, const QString& newName, QWidge
         }
         return false;
     }
+
+    // reload the containing folder if it is in use but does not have a file monitor
+    auto folder = Fm::Folder::findByPath(parent_path);
+    if(folder && folder->isValid() && folder->isLoaded() && !folder->hasFileMonitor()) {
+        folder->reload();
+    }
+
     return true;
 }
 
@@ -263,6 +271,12 @@ _retry:
 
         QMessageBox::critical(parent ? parent->window() : nullptr, QObject::tr("Error"), err.message());
     }
+    else { // reload the containing folder if it is in use but does not have a file monitor
+        auto folder = Fm::Folder::findByPath(parentDir);
+        if(folder && folder->isValid() && folder->isLoaded() && !folder->hasFileMonitor()) {
+            folder->reload();
+        }
+    }
 }
 
 uid_t uidFromName(QString name) {
-- 
2.30.2