FileAssociations: add System for system default program

src/core/buffer/filetypehelper.cpp

@@ -20,6 +20,8 @@ bool FileType::isMarkdown() const
     return m_type == Type::Markdown;
 }
 
+QString FileTypeHelper::s_systemDefaultProgram = QStringLiteral("System");
+
 FileTypeHelper::FileTypeHelper()
 {
     reload();

src/core/buffer/filetypehelper.h

@@ -52,6 +52,8 @@ namespace vnotex
 
         static FileTypeHelper &getInst();
 
+        static QString s_systemDefaultProgram;
+
     private:
         FileTypeHelper();
 

src/core/buffermgr.cpp

@@ -234,6 +234,13 @@ bool BufferMgr::openWithExternalProgram(const QString &p_filePath, const QString
         return false;
     }
 
+    if (p_name == FileTypeHelper::s_systemDefaultProgram) {
+        // Open it by system default program.
+        qInfo() << "file will be opened by default program" << p_filePath;
+        WidgetUtils::openUrlByDesktop(QUrl::fromLocalFile(p_filePath));
+        return true;
+    }
+
     if (auto pro = ConfigMgr::getInst().getSessionConfig().findExternalProgram(p_name)) {
         const auto command = pro->fetchCommand(p_filePath);
         if (!command.isEmpty()) {

src/core/coreconfig.cpp

@@ -4,6 +4,7 @@
 #include <QLocale>
 
 #include <utils/utils.h>
+#include <buffer/filetypehelper.h>
 
 using namespace vnotex;
 
@@ -274,18 +275,26 @@ void CoreConfig::loadFileTypeSuffixes(const QJsonObject &p_app, const QJsonObjec
 
     m_fileTypeSuffixes.reserve(arr.size());
 
+    bool hasSystemDefined = false;
+
     for (int i = 0; i < arr.size(); ++i) {
         const auto obj = arr[i].toObject();
         const auto name = obj[QStringLiteral("name")].toString();
         if (name.isEmpty()) {
             continue;
         }
-        const auto suffixes = readStringList(obj, QStringLiteral("suffixes"));
-        if (suffixes.isEmpty()) {
-            continue;
+
+        if (!hasSystemDefined && name == FileTypeHelper::s_systemDefaultProgram) {
+            hasSystemDefined = true;
         }
+
+        const auto suffixes = readStringList(obj, QStringLiteral("suffixes"));
         m_fileTypeSuffixes.push_back(FileTypeSuffix(name, Utils::toLower(suffixes)));
     }
+
+    if (!hasSystemDefined) {
+        m_fileTypeSuffixes.push_back(FileTypeSuffix(FileTypeHelper::s_systemDefaultProgram, QStringList()));
+    }
 }
 
 QJsonArray CoreConfig::saveFileTypeSuffixes() const

src/widgets/dialogs/settings/fileassociationpage.cpp

@@ -63,9 +63,6 @@ bool FileAssociationPage::saveInternal()
             continue;
         }
         auto suffixes = lineEdit->text().split(c_suffixSeparator, Qt::SkipEmptyParts);
-        if (suffixes.isEmpty()) {
-            continue;
-        }
         fileTypeSuffixes.push_back(CoreConfig::FileTypeSuffix(name, Utils::toLower(suffixes)));
     }
 
@@ -114,17 +111,25 @@ void FileAssociationPage::loadExternalProgramsGroup(QGroupBox *p_box)
 
     const auto &coreConfig = ConfigMgr::getInst().getCoreConfig();
     const auto &sessionConfig = ConfigMgr::getInst().getSessionConfig();
+
+    QStringList names;
     for (const auto &pro : sessionConfig.getExternalPrograms()) {
+        names.push_back(pro.m_name);
+    }
+
+    names << FileTypeHelper::s_systemDefaultProgram;
+
+    for (const auto &name : names) {
         auto lineEdit = WidgetsFactory::createLineEdit(p_box);
-        layout->addRow(pro.m_name, lineEdit);
+        layout->addRow(name, lineEdit);
         connect(lineEdit, &QLineEdit::textChanged,
                 this, &FileAssociationPage::pageIsChanged);
 
         lineEdit->setPlaceholderText(tr("Suffixes separated by ;"));
-        lineEdit->setToolTip(tr("List of suffixes to open with external program"));
-        lineEdit->setProperty(c_nameProperty, pro.m_name);
+        lineEdit->setToolTip(tr("List of suffixes to open with external program (or system default program)"));
+        lineEdit->setProperty(c_nameProperty, name);
 
-        auto suffixes = coreConfig.findFileTypeSuffix(pro.m_name);
+        auto suffixes = coreConfig.findFileTypeSuffix(name);
         if (suffixes) {
             lineEdit->setText(suffixes->join(c_suffixSeparator));
         }