impl status bar and optimize self highlight

src/main/java/com/tang/intellij/lua/annotator/LuaAnnotator.kt

@@ -143,6 +143,18 @@ class LuaAnnotator : Annotator {
                 }
             }
         }
+
+        override fun visitNameExpr(o: LuaNameExpr) {
+            super.visitNameExpr(o)
+            val name = o.id.text
+            if (name != null) {
+                if (name == "self") {
+                    newInfoAnnotation(o, null) {
+                        it.textAttributes(LuaHighlightingData.SELF)
+                    }
+                }
+            }
+        }
     }
 
     internal inner class LuaDocElementVisitor : LuaDocVisitor() {

src/main/kotlin/com/cppcxy/ide/editor/statusbar/StatusBarWidget.kt

@@ -0,0 +1,59 @@
+package com.cppcxy.ide.editor.statusbar
+
+
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.wm.StatusBarWidget
+import com.intellij.openapi.wm.StatusBarWidget.WidgetPresentation
+import com.intellij.openapi.wm.StatusBarWidgetFactory
+
+
+class StatusBarWidgetFactory() : StatusBarWidgetFactory {
+    override fun getId(): String {
+        return ID
+    }
+
+    override fun getDisplayName(): String {
+        return "Sumneko Lua"
+    }
+
+    override fun createWidget(project: Project): StatusBarWidget {
+        return SumnekoBar()
+    }
+
+    override fun isEnabledByDefault(): Boolean {
+        return true
+    }
+
+    override fun isAvailable(project: Project): Boolean {
+        return true
+    }
+
+    class SumnekoBar() : StatusBarWidget, StatusBarWidget.TextPresentation {
+        var toolTip = "Sumneko LSP"
+        var message = "Lua"
+
+        override fun ID(): String {
+            return ID
+        }
+
+        override fun getPresentation(): WidgetPresentation {
+            return this
+        }
+
+        override fun getAlignment(): Float {
+            return 0.0f
+        }
+
+        override fun getText(): String {
+            return message
+        }
+
+        override fun getTooltipText(): String {
+            return toolTip
+        }
+    }
+
+    companion object {
+        private val ID: String = "SumnekoBar"
+    }
+}

src/main/kotlin/com/cppcxy/ide/lsp/CustomLspData.kt

@@ -0,0 +1,6 @@
+package com.cppcxy.ide.lsp
+
+data class StatusReport(
+    val text: String,
+    val tooltip: String,
+)

src/main/kotlin/com/cppcxy/ide/lsp/SumnekoClient.kt

@@ -0,0 +1,30 @@
+package com.cppcxy.ide.lsp
+
+import com.cppcxy.ide.editor.statusbar.StatusBarWidgetFactory
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.wm.WindowManager
+import com.intellij.platform.lsp.api.Lsp4jClient
+import com.intellij.platform.lsp.api.LspServerNotificationsHandler
+import org.eclipse.lsp4j.jsonrpc.services.JsonNotification
+
+class SumnekoClient(private val serverNotificationsHandler: LspServerNotificationsHandler, val project: Project) :
+    Lsp4jClient(serverNotificationsHandler) {
+
+    @JsonNotification("$/status/show")
+    fun statusShow() {
+    }
+
+    @JsonNotification("$/status/hide")
+    fun statusHide() {
+    }
+
+    @JsonNotification("$/status/report")
+    fun statusReport(report: StatusReport) {
+        val statusBar = WindowManager.getInstance().getStatusBar(project)
+        val widget = statusBar.getWidget("SumnekoBar") as StatusBarWidgetFactory.SumnekoBar?
+        if (widget != null) {
+            widget.message = report.text
+            widget.toolTip = report.tooltip
+        }
+    }
+}

src/main/kotlin/com/cppcxy/ide/lsp/SumnekoLspServerDescriptor.kt

@@ -12,7 +12,6 @@ import com.tang.intellij.lua.lang.LuaFileType
 import com.tang.intellij.lua.lang.LuaIcons
 import org.eclipse.lsp4j.CompletionItem
 import org.eclipse.lsp4j.CompletionItemKind
-import org.eclipse.lsp4j.InitializeParams
 import javax.swing.Icon
 
 
@@ -33,8 +32,8 @@ class SumnekoLspServerDescriptor(project: Project) : ProjectWideLspServerDescrip
         }
     }
 
-    override fun createInitializeParams(): InitializeParams {
-        return super.createInitializeParams()
+    override fun createLsp4jClient(handler: LspServerNotificationsHandler): Lsp4jClient {
+        return SumnekoClient(handler, project)
     }
 
     override val lspCompletionSupport = object : LspCompletionSupport() {

src/main/kotlin/com/cppcxy/ide/lsp/SumnekoLspServerSupportProvider.kt

@@ -2,15 +2,27 @@
 
 package com.cppcxy.ide.lsp
 
+
+import com.cppcxy.ide.setting.SumnekoSettingsPanel
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.VirtualFile
+import com.intellij.platform.lsp.api.LspServer
 import com.tang.intellij.lua.lang.LuaFileType
 import com.intellij.platform.lsp.api.LspServerSupportProvider
+import com.intellij.platform.lsp.api.lsWidget.LspServerWidgetItem
+import com.tang.intellij.lua.lang.LuaIcons
 
 class SumnekoLspServerSupportProvider : LspServerSupportProvider {
-    override fun fileOpened(project: Project, file: VirtualFile, serverStarter: LspServerSupportProvider.LspServerStarter) {
+    override fun fileOpened(
+        project: Project,
+        file: VirtualFile,
+        serverStarter: LspServerSupportProvider.LspServerStarter
+    ) {
         if (file.fileType !is LuaFileType) return
 
         serverStarter.ensureServerStarted(SumnekoLspServerDescriptor(project))
     }
+
+    override fun createLspServerWidgetItem(lspServer: LspServer, currentFile: VirtualFile?): LspServerWidgetItem =
+        LspServerWidgetItem(lspServer, currentFile, LuaIcons.FILE, SumnekoSettingsPanel::class.java)
 }

src/main/resources/META-INF/plugin.xml

@@ -190,6 +190,8 @@
                 id="SumnekoLua.Settings"
         >
         </applicationConfigurable>
+
+        <statusBarWidgetFactory id="SumnekoBar" implementation="com.cppcxy.ide.editor.statusbar.StatusBarWidgetFactory"/>
     </extensions>
     <actions>
         <action class="com.tang.intellij.lua.actions.CreateLuaFileAction"