Should fixed #46

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/core/mod/ModpackManager.java

@@ -31,6 +31,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.zip.ZipFile;
+import javax.swing.JFrame;
 import javax.swing.JOptionPane;
 import org.jackhuang.hellominecraft.util.C;
 import org.jackhuang.hellominecraft.util.logging.HMCLog;
@@ -80,7 +81,7 @@ public final class ModpackManager {
      * @return The installing Task, may take long time, please consider
      *         TaskWindow.
      */
-    public static Task install(final File input, final IMinecraftService service, final String idFUCK) {
+    public static Task install(JFrame parFrame, final File input, final IMinecraftService service, final String idFUCK) {
         return new Task() {
             Collection<Task> c = new ArrayList<>();
 
@@ -110,7 +111,7 @@ public final class ModpackManager {
                 msgs[0] = C.i18n("modpack.task.install");
                 msgs[1] = new WebPage(description);
                 ((WebPage) msgs[1]).setPreferredSize(new Dimension(800, 350));
-                int result = JOptionPane.showOptionDialog(null, msgs, (String) msgs[0], JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, null, null);
+                int result = JOptionPane.showOptionDialog(parFrame, msgs, (String) msgs[0], JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, null, null);
                 if (result == JOptionPane.NO_OPTION)
                     throw new NoShownTaskException("Operation was canceled by user.");
 

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/ui/MainPagePanel.java

@@ -37,6 +37,7 @@ import org.jackhuang.hellominecraft.launcher.setting.Settings;
 import org.jackhuang.hellominecraft.launcher.core.mod.ModpackManager;
 import org.jackhuang.hellominecraft.launcher.core.service.IMinecraftService;
 import org.jackhuang.hellominecraft.launcher.ui.modpack.ModpackWizard;
+import org.jackhuang.hellominecraft.launcher.util.HMCLMinecraftService;
 import org.jackhuang.hellominecraft.util.ui.GraphicsUtils;
 import org.jackhuang.hellominecraft.util.Event;
 import org.jackhuang.hellominecraft.lookandfeel.comp.ConstomButton;
@@ -382,7 +383,7 @@ public class MainPagePanel extends AnimatedPanel {
         if (fc.getSelectedFile() == null)
             return;
         String suggestedModpackId = JOptionPane.showInputDialog("Please enter your favourite game name", FileUtils.getBaseName(fc.getSelectedFile().getName()));
-        TaskWindow.factory().append(ModpackManager.install(fc.getSelectedFile(), Settings.getLastProfile().service(), suggestedModpackId)).create();
+        TaskWindow.factory().append(ModpackManager.install(MainFrame.INSTANCE, fc.getSelectedFile(), Settings.getLastProfile().service(), suggestedModpackId)).create();
         Settings.getLastProfile().service().version().refreshVersions();
     }//GEN-LAST:event_btnImportModpackActionPerformed
 
@@ -489,7 +490,7 @@ public class MainPagePanel extends AnimatedPanel {
         cboVersions.removeAllItems();
         String selVersion = Settings.getLastProfile().getSelectedVersion();
         if (Settings.getLastProfile().service().version().getVersions().isEmpty()) {
-            if (!showedNoVersion) {
+            if (!showedNoVersion && ((HMCLMinecraftService) Settings.getLastProfile().service()).checkedModpack) {
                 showedNoVersion = true;
                 SwingUtilities.invokeLater(() -> {
                     if (MessageBox.Show(C.i18n("mainwindow.no_version"), MessageBox.YES_NO_OPTION) == MessageBox.YES_OPTION)

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/util/HMCLMinecraftService.java

@@ -21,6 +21,7 @@ import com.google.gson.JsonSyntaxException;
 import java.io.File;
 import java.util.HashMap;
 import java.util.Map;
+import javax.swing.SwingUtilities;
 import org.jackhuang.hellominecraft.launcher.core.GameException;
 import org.jackhuang.hellominecraft.launcher.core.install.MinecraftInstallerService;
 import org.jackhuang.hellominecraft.launcher.core.asset.MinecraftAssetService;
@@ -39,6 +40,7 @@ import org.jackhuang.hellominecraft.launcher.core.mod.MinecraftModService;
 import org.jackhuang.hellominecraft.launcher.core.mod.ModpackManager;
 import org.jackhuang.hellominecraft.launcher.setting.Profile;
 import org.jackhuang.hellominecraft.launcher.setting.VersionSetting;
+import org.jackhuang.hellominecraft.launcher.ui.MainFrame;
 import org.jackhuang.hellominecraft.util.C;
 import org.jackhuang.hellominecraft.util.logging.HMCLog;
 import org.jackhuang.hellominecraft.util.system.FileUtils;
@@ -66,18 +68,20 @@ public class HMCLMinecraftService extends IMinecraftService {
         this.mis = new MinecraftInstallerService(this);
     }
 
+    public boolean checkedModpack = false, checkingModpack = false;
+
     private void checkModpack() {
-        int show = 0;
+        if (!checkingModpack) {
-        for (StackTraceElement e : Thread.currentThread().getStackTrace())
+            checkingModpack = true;
-            if ("checkModpack".equals(e.getMethodName()))
+            if (version().getVersionCount() == 0) {
-                ++show;
+                File modpack = new File("modpack.zip");
-        if (show > 1)
+                if (modpack.exists())
-            return;
+                    SwingUtilities.invokeLater(() -> {
-        if (version().getVersionCount() == 0) {
+                        if (TaskWindow.execute(ModpackManager.install(MainFrame.INSTANCE, modpack, this, null)))
-            File modpack = new File("modpack.zip");
+                            version().refreshVersions();
-            if (modpack.exists())
+                        checkedModpack = true;
-                if (TaskWindow.execute(ModpackManager.install(modpack, this, null)))
+                    });
-                    version().refreshVersions();
+            }
         }
     }
 

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/util/tasks/TaskWindow.java

@@ -225,9 +225,11 @@ public class TaskWindow extends javax.swing.JDialog
 
     @Override
     public void run() {
-        SwingUtilities.invokeLater(this::dispose);
+        SwingUtilities.invokeLater(() -> {
-        suc = true;
+            dispose();
-        HMCLog.log("Tasks are finished.");
+            suc = true;
+            HMCLog.log("Tasks are finished.");
+        });
     }
 
     @Override