feat(inline-chat): add inline chat service and integrate with gutter …

…icon #157

Introduce `ShireInlineChatService` to handle inline chat functionality within the editor. Integrate the service with the gutter icon click

src/main/kotlin/com/phodal/shire/marketplace/EditorGutterHandler.kt → src/main/kotlin/com/phodal/shire/inline/EditorGutterHandler.kt

@@ -1,11 +1,10 @@
-package com.phodal.shire.marketplace
+package com.phodal.shire.inline
 
 import com.intellij.openapi.actionSystem.AnAction
 import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.EditorFactory
-import com.intellij.openapi.editor.colors.TextAttributesKey
 import com.intellij.openapi.editor.event.EditorFactoryEvent
 import com.intellij.openapi.editor.event.EditorFactoryListener
 import com.intellij.openapi.editor.event.SelectionEvent
@@ -59,17 +58,16 @@ class EditorGutterHandler {
     }
 
     fun addGutterIcon(editor: Editor, line: Int) {
-        val it: GutterIconData? = gutterIcons.get(editor)
-        if (it != null) {
-            INSTANCE.removeGutterIcon(editor, it.highlighter)
+        val iconData: GutterIconData? = gutterIcons[editor]
+        if (iconData != null) {
+            INSTANCE.removeGutterIcon(editor, iconData.highlighter)
         }
 
-
         FileDocumentManager.getInstance().getFile(editor.document) ?: return
 
         val highlighter = editor.markupModel.addLineHighlighter(null, line, 0)
         highlighter.gutterIconRenderer = ShireGutterIconRenderer(line, onClick = {
-            ShirelangNotifications.info(editor.project!!, "Line $line clicked")
+            ShireInlineChatService.getInstance().showInlineChat(editor)
         })
 
         gutterIcons[editor] = GutterIconData(line, highlighter)

src/main/kotlin/com/phodal/shire/inline/ShireInlineChatService.kt

@@ -0,0 +1,130 @@
+package com.phodal.shire.inline
+
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.application.runInEdt
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.editor.EditorCustomElementRenderer
+import com.intellij.openapi.editor.Inlay
+import com.intellij.openapi.editor.markup.TextAttributes
+import com.intellij.openapi.wm.IdeFocusManager
+import com.intellij.ui.components.JBTextArea
+import com.intellij.util.ui.JBUI
+import java.awt.*
+import java.awt.geom.Rectangle2D
+import javax.swing.BorderFactory
+import javax.swing.JPanel
+import javax.swing.LayoutFocusTraversalPolicy
+
+@Service(Service.Level.APP)
+class ShireInlineChatService : Disposable {
+    fun showInlineChat(editor: Editor) {
+        runInEdt {
+            if (editor.component !is ShireInlineChatPanel) {
+                val panel = ShireInlineChatPanel(editor)
+                editor.contentComponent.add(panel)
+                panel.setInlineContainer(editor.contentComponent)
+                val offset = if (editor.selectionModel.hasSelection()) {
+                    editor.selectionModel.selectionStart
+                } else {
+                    editor.caretModel.primaryCaret.offset
+                }
+
+                panel.createInlay(offset)
+                IdeFocusManager.getInstance(editor.project).requestFocus(panel.inputPanel.getInputComponent(), true)
+            }
+        }
+    }
+
+    override fun dispose() {
+        ///
+    }
+
+    companion object {
+        fun getInstance(): ShireInlineChatService {
+            return ApplicationManager.getApplication().getService(ShireInlineChatService::class.java)
+        }
+    }
+}
+
+class ShireInlineChatPanel(private val editor: Editor) : JPanel(GridBagLayout()), EditorCustomElementRenderer,
+    Disposable {
+    private var inlay: Inlay<*>? = null
+    val inputPanel = ShireInlineChatInputPanel()
+    private var centerPanel: JPanel = JPanel(BorderLayout())
+    private var container: Container? = null
+
+    init {
+        border = JBUI.Borders.empty()
+        isOpaque = false
+        cursor = Cursor.getPredefinedCursor(0)
+
+        val jPanel = JPanel(BorderLayout())
+        jPanel.addMouseListener(object : java.awt.event.MouseAdapter() {
+            override fun mouseClicked(e: java.awt.event.MouseEvent) {
+                IdeFocusManager.getInstance(editor.project).requestFocus(inputPanel.getInputComponent(), true)
+            }
+        })
+        this.centerPanel = jPanel
+
+        val c = GridBagConstraints()
+        c.gridx = 0
+        c.gridy = 1
+        c.weightx = 1.0
+        c.anchor = GridBagConstraints.NORTHWEST
+        c.fill = GridBagConstraints.HORIZONTAL
+        add(this.centerPanel, c)
+
+        c.gridy = 0
+        c.weighty = 0.0
+        c.fill = GridBagConstraints.HORIZONTAL
+        add(inputPanel, c)
+
+        isFocusCycleRoot = true
+        focusTraversalPolicy = LayoutFocusTraversalPolicy()
+    }
+
+    override fun calcWidthInPixels(p0: Inlay<*>): Int = size.width
+
+    override fun calcHeightInPixels(p0: Inlay<*>): Int = size.height
+
+    fun createInlay(offset: Int) {
+        inlay = editor.inlayModel.addBlockElement(offset, false, true, 1, this)
+    }
+
+    fun setInlineContainer(container: Container) {
+        this.container = container
+    }
+
+    override fun paint(inlay: Inlay<*>, g: Graphics2D, targetRegion: Rectangle2D, textAttributes: TextAttributes) {
+        bounds = inlay.bounds ?: return
+        revalidate()
+        repaint()
+    }
+
+    override fun dispose() {
+        inlay?.dispose()
+    }
+}
+
+class ShireInlineChatInputPanel : JPanel(GridBagLayout()) {
+    private val textArea: JBTextArea
+
+    init {
+        layout = BorderLayout()
+        textArea = JBTextArea().apply {
+            isOpaque = false
+            isFocusable = true
+            lineWrap = true
+            wrapStyleWord = true
+            border = BorderFactory.createEmptyBorder(8, 5, 8, 5)
+        }
+
+        add(textArea)
+    }
+
+    fun getInputComponent(): JBTextArea {
+        return textArea
+    }
+}

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

@@ -34,6 +34,7 @@
     </content>
 
     <extensions defaultExtensionNs="com.intellij">
+
         <applicationConfigurable parentId="tools" instance="com.phodal.shire.settings.ShireLlmSettingsConfigurable"
                                  id="shireLlmSettingsConfigurable"
                                  displayName="Shire"/>