feat: support to open host by enter

src/main/kotlin/app/termora/MyTabbedPane.kt

@@ -23,6 +23,7 @@ class MyTabbedPane : FlatTabbedPane() {
             .getData(DataProviders.TermoraFrame) as TermoraFrame
 
     init {
+        isFocusable = false
         initEvents()
     }
 

src/main/kotlin/app/termora/NewHostTree.kt

@@ -30,10 +30,7 @@ import java.awt.Dimension
 import java.awt.datatransfer.DataFlavor
 import java.awt.datatransfer.Transferable
 import java.awt.datatransfer.UnsupportedFlavorException
-import java.awt.event.ActionEvent
+import java.awt.event.*
-import java.awt.event.ActionListener
-import java.awt.event.MouseAdapter
-import java.awt.event.MouseEvent
 import java.io.*
 import java.util.*
 import java.util.function.Function
@@ -216,6 +213,26 @@ class NewHostTree : JXTree() {
             }
         })
 
+        addKeyListener(object : KeyAdapter() {
+            override fun keyPressed(e: KeyEvent) {
+                if (e.keyCode == KeyEvent.VK_ENTER && doubleClickConnection) {
+                    val nodes = getSelectionHostTreeNodes(false)
+                    if (nodes.size == 1 && nodes.first().host.protocol == Protocol.Folder) {
+                        val path = TreePath(model.getPathToRoot(nodes.first()))
+                        if (isExpanded(path)) {
+                            collapsePath(path)
+                        } else {
+                            expandPath(path)
+                        }
+                    } else {
+                        for (node in getSelectionHostTreeNodes(true)) {
+                            openHostAction?.actionPerformed(OpenHostActionEvent(e.source, node.host, e))
+                        }
+                    }
+                }
+            }
+        })
+
         // rename
         getCellEditor().addCellEditorListener(object : CellEditorListener {
             override fun editingStopped(e: ChangeEvent) {

src/main/kotlin/app/termora/TerminalTabbed.kt

@@ -78,21 +78,14 @@ class TerminalTabbed(
                 tabs[oldIndex].onLostFocus()
             }
 
+            tabbedPane.getComponentAt(newIndex).requestFocusInWindow()
+
             if (newIndex >= 0 && tabs.size > newIndex) {
                 tabs[newIndex].onGrabFocus()
             }
 
-            SwingUtilities.invokeLater { tabbedPane.getComponentAt(newIndex).requestFocusInWindow() }
-
         }
 
-        // 选择变动
-        tabbedPane.addChangeListener {
-            if (tabbedPane.selectedIndex >= 0) {
-                val c = tabbedPane.getComponentAt(tabbedPane.selectedIndex)
-                c.requestFocusInWindow()
-            }
-        }
 
         // 右键菜单
         tabbedPane.addMouseListener(object : MouseAdapter() {

src/main/kotlin/app/termora/WelcomePanel.kt

@@ -13,7 +13,9 @@ import com.formdev.flatlaf.extras.components.FlatTextField
 import org.apache.commons.lang3.StringUtils
 import org.jdesktop.swingx.action.ActionManager
 import java.awt.BorderLayout
+import java.awt.Component
 import java.awt.Dimension
+import java.awt.KeyboardFocusManager
 import java.awt.event.ActionEvent
 import java.awt.event.ComponentAdapter
 import java.awt.event.ComponentEvent
@@ -32,6 +34,7 @@ class WelcomePanel(private val windowScope: WindowScope) : JPanel(BorderLayout()
     private var fullContent = properties.getString("WelcomeFullContent", "false").toBoolean()
     private val dataProviderSupport = DataProviderSupport()
     private val hostTreeModel = hostTree.model as NewHostTreeModel
+    private var lastFocused: Component? = null
     private val filterableHostTreeModel = FilterableHostTreeModel(hostTree) {
         searchTextField.text.isBlank()
     }
@@ -258,6 +261,14 @@ class WelcomePanel(private val windowScope: WindowScope) : JPanel(BorderLayout()
         return false
     }
 
+    override fun onLostFocus() {
+        lastFocused = KeyboardFocusManager.getCurrentKeyboardFocusManager().focusOwner
+    }
+
+    override fun onGrabFocus() {
+        SwingUtilities.invokeLater { lastFocused?.requestFocusInWindow() }
+    }
+
     override fun dispose() {
         properties.putString("WelcomeFullContent", fullContent.toString())
         properties.putString("Welcome.HostTree.state", TreeUtils.saveExpansionState(hostTree))