Ask for confirmation before deleting files

AddonsPanel.qml

@@ -126,6 +126,26 @@ ColumnLayout {
                         }
                     }
                 }
+                Dialog {
+                    parent: window.overlay
+                    x: (parent.width - width) / 2
+                    y: (parent.height - height) / 2
+                    title: qsTr("Following files will be deleted:")
+                    standardButtons: Dialog.Ok | Dialog.Cancel
+                    onClosed: addon.confirmFileRemove(result == Dialog.Accepted)
+                    modal: true
+                    visible: addon.filesToRemove != ""
+                    closePolicy: Popup.NoAutoClose
+                    ScrollView{
+                        anchors.fill: parent
+                        TextArea {
+                            text: addon.filesToRemove
+                            readOnly: true
+                            anchors.fill: parent
+                            wrapMode: Text.NoWrap
+                        }
+                    }
+                }
             }
         }
         ScrollBar {id: scrollBar; Layout.fillHeight: true; visible: listView.contentHeight > listView.header}

addon.cpp

@@ -354,28 +354,38 @@ void Addon::setSubfolders(QStringList subfolders)
 
 void walkFolders(QFileInfo &info, auto f){
     if (info.isDir() && !info.isSymLink()) {
-        foreach (QFileInfo sub, QDir(info.filePath()).entryInfoList(QDir::AllEntries|QDir::NoDotAndDotDot|QDir::Hidden))
+        foreach (QFileInfo sub, QDir(info.absoluteFilePath()).entryInfoList(QDir::AllEntries|QDir::NoDotAndDotDot|QDir::Hidden))
             walkFolders(sub, f);
     }
     f(info);
 }
 
-void Addon::removeFolder(QString path) {
+void Addon::removeFolder(QString path, bool ask) {
     QFileInfo info(path);
+    QStringList files;
+    bool ok = ask;
     if (info.exists()) {
-        int i = 0;
-        walkFolders(info, [ &i](QFileInfo /*info*/){
-            i++;
-        });
-        emit totalChanged(i);
-        i = 0;
-        walkFolders(info, [this, &i](QFileInfo info){
-            if (!info.isSymLink() && info.isDir())
-                info.dir().rmdir(info.fileName());
-            else
-                QFile(info.filePath()).remove();
-            emit totalChanged(++i);
+        walkFolders(info, [&files](QFileInfo info){
+            files << info.absoluteFilePath();
         });
+        if (ask) {
+            m_mutex.lock();
+            m_result = &ok;
+            QMetaObject::invokeMethod(this, "setFilesToRemove", Q_ARG(QString, files.join('\n')));
+            m_wait.wait(&m_mutex);
+            m_mutex.unlock();
+        }
+        if (ok) {
+            emit totalChanged(files.size());
+            for (int i = 0; i < files.size(); i++) {
+                QFileInfo info(files[i]);
+                if (!info.isSymLink() && info.isDir())
+                    info.dir().rmdir(info.fileName());
+                else
+                    QFile(info.absoluteFilePath()).remove();
+                emit totalChanged(i);
+            }
+        }
     }
 }
 
@@ -444,6 +454,23 @@ void Addon::unpackSubfolders(){
     });
 }
 
+void Addon::setFilesToRemove(QString filesToRemove)
+{
+    if (m_filesToRemove == filesToRemove)
+        return;
+
+    m_filesToRemove = filesToRemove;
+    emit filesToRemoveChanged(m_filesToRemove);
+}
+
+void Addon::confirmFileRemove(bool confirmed)
+{
+    m_mutex.lock();
+    *static_cast<bool *>(m_result) = confirmed;
+    m_wait.wakeOne();
+    m_mutex.unlock();
+}
+
 QStringList Addon::branches() const
 {
     return m_branches;
@@ -489,6 +516,11 @@ QStringList Addon::subfolders() const
     return m_subfolders;
 }
 
+QString Addon::filesToRemove() const
+{
+    return m_filesToRemove;
+}
+
 void Addon::closeRepo()
 {
     m_repo.reset();

addon.h

@@ -22,6 +22,8 @@
 #include <memory>
 #include <functional>
 #include <QQueue>
+#include <QMutex>
+#include <QWaitCondition>
 
 class git_repository;
 using repo_p = std::unique_ptr<git_repository, void(*)(git_repository *)>;
@@ -49,6 +51,9 @@ class Addon : public QObject
 
     int m_total;
 
+    QMutex m_mutex;
+    QWaitCondition m_wait;
+    void *m_result;
 public:
     Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
     Q_PROPERTY(QStringList branches READ branches WRITE setBranches NOTIFY branchesChanged)
@@ -58,6 +63,7 @@ public:
     Q_PROPERTY(int progress READ progress WRITE setProgress NOTIFY progressChanged)
     Q_PROPERTY(int total READ total WRITE setTotal NOTIFY totalChanged)
     Q_PROPERTY(QStringList subfolders READ subfolders WRITE setSubfolders NOTIFY subfoldersChanged)
+    Q_PROPERTY(QString filesToRemove READ filesToRemove WRITE setFilesToRemove NOTIFY filesToRemoveChanged)
 
     enum class Status {
         Error = -1,
@@ -105,6 +111,8 @@ public:
 
     QStringList subfolders() const;
 
+    QString filesToRemove() const;
+
 private:
 
     Status m_status;
@@ -122,7 +130,9 @@ private:
 
     QThreadPool *m_pool;
 
-    void removeFolder(QString path);
+    void removeFolder(QString path, bool ask = true);
+    QString m_filesToRemove;
+
 signals:
 
     void nameChanged(QString name);
@@ -145,6 +155,8 @@ signals:
 
     void subfoldersChanged(QStringList subfolders);
 
+    void filesToRemoveChanged(QString filesToRemove);
+
 public slots:
     void setName(QString name);
     void update();
@@ -164,6 +176,8 @@ public slots:
     void setSubfolders(QStringList subfolders);
     void removeSubfolders();
     void unpackSubfolders();
+    void setFilesToRemove(QString filesToRemove);
+    void confirmFileRemove(bool confirmed);
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(Addon::GitStatus)