fix(editor): remove scrollbar and caret settings #371

- Comment out unused scrollbar and caret settings in LocalJsonTextProvider
- Add input validation and clear chat input in McpPreviewEditor
- Remove unused Tool import in McpPreviewEditor

Author: phodal

core/src/main/kotlin/cc/unitmesh/devti/mcp/editor/McpPreviewEditor.kt

@@ -1,6 +1,7 @@
 package cc.unitmesh.devti.mcp.editor
 
 import cc.unitmesh.devti.AutoDevIcons
+import cc.unitmesh.devti.AutoDevNotifications
 import cc.unitmesh.devti.llm2.model.LlmConfig
 import cc.unitmesh.devti.llms.custom.CustomLLMProvider
 import cc.unitmesh.devti.mcp.ui.McpToolListPanel
@@ -31,7 +32,6 @@ import com.intellij.ui.dsl.builder.panel
 import com.intellij.util.ui.JBUI
 import com.intellij.util.ui.UIUtil
 import com.intellij.util.ui.components.BorderLayoutPanel
-import io.modelcontextprotocol.kotlin.sdk.Tool
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.cancellable
@@ -228,15 +228,22 @@ open class McpPreviewEditor(
             config.enabledTools = allTools.map { it.value }.flatten().toMutableList()
         }
 
+        if (chatInput.text.isEmpty()) {
+            AutoDevNotifications.warn(project, "Please enter a message to send.")
+            return
+        }
+
         val llmConfig = LlmConfig.load().firstOrNull { it.name == chatbotSelector.selectedItem }
             ?: LlmConfig.default()
         val llmProvider = CustomLLMProvider(project, llmConfig)
         val message = chatInput.text.trim()
+
+        chatInput.text = ""
+
         val result = StringBuilder()
         val systemPrompt = config.createSystemPrompt()
         val stream: Flow<String> = llmProvider.stream(message, systemPrompt = systemPrompt)
 
-        // Reset the resultPanel before setting new content
         resultPanel.reset()
         resultPanel.setText("Loading response...")
         resultPanel.isVisible = true

core/src/main/kotlin/cc/unitmesh/devti/provider/local/LocalJsonTextProvider.kt

@@ -46,16 +46,16 @@ class JsonLanguageField(
     override fun createEditor(): EditorEx {
         return super.createEditor().apply {
             setShowPlaceholderWhenFocused(true)
-            setHorizontalScrollbarVisible(false)
-            setVerticalScrollbarVisible(true)
+//            setHorizontalScrollbarVisible(false)
+//            setVerticalScrollbarVisible(true)
             setPlaceholder(placeholder)
 
             val scheme = EditorColorsUtil.getColorSchemeForBackground(this.colorsScheme.defaultBackground)
             this.colorsScheme = this.createBoundColorSchemeDelegate(scheme)
 
-            this.settings.isUseSoftWraps = true
-            this.settings.isAdditionalPageAtBottom = false
-            this.settings.isCaretRowShown = false
+//            this.settings.isUseSoftWraps = true
+//            this.settings.isAdditionalPageAtBottom = false
+//            this.settings.isCaretRowShown = false
 
             isOneLineMode = oneLineMode
         }