在不存在appmanager时，手动解析dekstopfile，直接执行应用

src/utils/app-manager.cpp

@@ -15,12 +15,14 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+#include <gio/gio.h>
 
 #include "app-manager.h"
 
 #include <QDebug>
 #include <QDBusReply>
 #include <QDBusInterface>
+#include <QProcess>
 
 #define KYLIN_APP_MANAGER_NAME         "com.kylin.AppManager"
 #define KYLIN_APP_MANAGER_PATH         "/com/kylin/AppManager"
@@ -44,15 +46,66 @@ AppManager::AppManager(QObject *parent) : QObject(parent)
     }
 }
 
-bool AppManager::launchApp(const QString &desktopFile)
+bool AppManager::launchApp(const QString &desktopFilePath)
 {
-    if (m_appManagerDbusInterface != nullptr) {
-        QDBusReply<bool> status = m_appManagerDbusInterface->call("LaunchApp", desktopFile);
-        return status;
-    } else {
-        qWarning() <<"LaunchApp is failed,return false";
+    if (launchAppWithDBus(desktopFilePath)) {
+        return true;
+    }
+
+    QString cmd = parseDesktopFile(desktopFilePath);
+//    qDebug() << "launchApp:" << desktopFilePath << cmd;
+    if (cmd.isEmpty()) {
         return false;
     }
+
+    return QProcess::startDetached(cmd);
+}
+
+bool AppManager::launchAppWithDBus(const QString &desktopFilePath)
+{
+    if (!m_appManagerDbusInterface) {
+        return false;
+    }
+
+    QDBusReply<bool> status = m_appManagerDbusInterface->call("LaunchApp", desktopFilePath);
+    return status.value();
+}
+
+QString AppManager::parseDesktopFile(const QString &desktopFilePath)
+{
+    // TODO: try QSettings?
+    GKeyFile *keyFile = g_key_file_new();
+    gboolean res = g_key_file_load_from_file(keyFile, desktopFilePath.toUtf8(), G_KEY_FILE_NONE, nullptr);
+    if (!res) {
+        return "";
+    }
+
+    gchar *exec = g_key_file_get_value(keyFile, "Desktop Entry", "Exec", nullptr);
+    if (!exec) {
+        g_key_file_free(keyFile);
+        return "";
+    }
+
+    QStringList stringList = QString(exec).split(" ");
+
+    g_free(exec);
+    g_key_file_free(keyFile);
+
+    if (stringList.isEmpty()) {
+        return "";
+    }
+
+    QString program = stringList.first();
+    stringList.removeFirst();
+
+    // TODO: freedesktop group
+    for (const auto &str : stringList) {
+        if (!str.startsWith("%")) {
+            program.append(" " + str);
+        }
+    }
+
+    return program;
 }
 
 } // UkuiMenu

src/utils/app-manager.h

@@ -32,10 +32,12 @@ public:
     AppManager(const AppManager &obj) = delete;
     AppManager &operator = (const AppManager &obj) = delete;
 
-    bool launchApp(const QString &desktopFile);
+    bool launchApp(const QString &desktopFilePath);
 
 private:
     explicit AppManager(QObject *parent = nullptr);
+    bool launchAppWithDBus(const QString &desktopFilePath);
+    static QString parseDesktopFile(const QString &desktopFilePath);
 
 private:
     QDBusInterface *m_appManagerDbusInterface = nullptr;