[Editor] Enable main view's tab selection on change | implement line selection from compilation logs on opened tabs

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/model/CodeScope.kt

@@ -1,17 +1,18 @@
 package com.bartlomiejpluta.base.editor.code.model
 
 import com.bartlomiejpluta.base.editor.command.context.UndoableScope
-import tornadofx.toProperty
 
-class CodeScope(line: Int, column: Int) : UndoableScope() {
-   private val requestCaretPositionProperty = (line to column).toProperty()
+class CodeScope(private var line: Int, private var column: Int) : UndoableScope() {
+   var caretDisplacementRequestListener: ((line: Int, column: Int) -> Unit)? = null
+      set(value) {
+         field = value
+         field?.let { it(line, column) }
+      }
 
    fun setCaretPosition(line: Int, column: Int) {
-      requestCaretPositionProperty.value = line to column
-   }
+      this.line = line
+      this.column = column
 
-   fun addCaretDisplacementRequestListener(listener: (line: Int, column: Int) -> Unit) {
-      requestCaretPositionProperty.addListener { _, _, position -> listener(position.first, position.second) }
-      listener(requestCaretPositionProperty.value.first, requestCaretPositionProperty.value.second)
+      caretDisplacementRequestListener?.let { it(line, column) }
    }
 }

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/CodeEditorView.kt

@@ -28,7 +28,7 @@ class CodeEditorView : View() {
    private val editor = CodeEditor(highlighter, codeVM.codeProperty)
 
    init {
-      scope.addCaretDisplacementRequestListener { line, column ->
+      scope.caretDisplacementRequestListener = { line, column ->
          editor.setCaretPosition(line, column)
       }
    }

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/event/SelectMainViewTabEvent.kt

@@ -0,0 +1,7 @@
+package com.bartlomiejpluta.base.editor.event
+
+import tornadofx.EventBus
+import tornadofx.FXEvent
+import tornadofx.Scope
+
+class SelectMainViewTabEvent(val targetScope: Scope) : FXEvent(EventBus.RunOn.ApplicationThread)

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/main/controller/MainController.kt

@@ -6,6 +6,7 @@ import com.bartlomiejpluta.base.editor.code.model.CodeScope
 import com.bartlomiejpluta.base.editor.code.model.FileSystemNode
 import com.bartlomiejpluta.base.editor.code.viewmodel.CodeVM
 import com.bartlomiejpluta.base.editor.command.context.UndoableScope
+import com.bartlomiejpluta.base.editor.event.SelectMainViewTabEvent
 import com.bartlomiejpluta.base.editor.image.view.importing.ImportImageFragment
 import com.bartlomiejpluta.base.editor.image.viewmodel.ImageAssetDataVM
 import com.bartlomiejpluta.base.editor.map.asset.GameMapAsset
@@ -76,24 +77,49 @@ class MainController : Controller() {
    }
 
    fun openMap(uid: String) {
-      if (openItems.count { (_, item) -> item is GameMap && item.uid == uid } == 0) {
+      openItem<GameMap, UndoableScope>({ it.uid == uid }) {
          val map = projectContext.loadMap(uid)
          val vm = GameMapVM(map)
          val scope = UndoableScope()
          setInScope(vm, scope)
 
-         openItems[scope] = map
+         scope to map
       }
    }
 
    fun openScript(fsNode: FileSystemNode, line: Int = 1, column: Int = 1) {
-      if (openItems.count { (_, item) -> item is Code && item.file.absolutePath == fsNode.file.absolutePath } == 0) {
+      val findScript = { script: Code -> script.file.absolutePath == fsNode.file.absolutePath }
+      val updateExistingScope = { scope: CodeScope -> scope.setCaretPosition(line, column) }
+
+      openItem(findScript, updateExistingScope) {
          val code = projectContext.loadScript(fsNode.fileProperty)
          val vm = CodeVM(code)
          val scope = CodeScope(line, column)
          setInScope(vm, scope)
 
-         openItems[scope] = code
+         scope to code
+      }
+   }
+
+   private inline fun <reified T, S : Scope> openItem(
+      findItem: (item: T) -> Boolean,
+      updateExistingScope: (S) -> Unit = {},
+      createItem: () -> Pair<Scope, T>
+   ) {
+      @Suppress("UNCHECKED_CAST")
+      val pair = openItems.entries
+         .filter { (_, item) -> item is T }
+         .map { (scope, item) -> (scope as S) to (item as T) }
+         .firstOrNull { (_, item) -> findItem(item) }
+
+      if (pair == null) {
+         val (scope, item) = createItem()
+         openItems[scope] = item
+         fire(SelectMainViewTabEvent(scope))
+      } else {
+         val scope = pair.first
+         updateExistingScope(scope)
+         fire(SelectMainViewTabEvent(scope))
       }
    }
 

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/main/view/MainView.kt

@@ -6,6 +6,7 @@ import com.bartlomiejpluta.base.editor.code.view.CodeEditorFragment
 import com.bartlomiejpluta.base.editor.code.view.CompilerLogsView
 import com.bartlomiejpluta.base.editor.code.view.ScriptFilesView
 import com.bartlomiejpluta.base.editor.code.viewmodel.CodeVM
+import com.bartlomiejpluta.base.editor.event.SelectMainViewTabEvent
 import com.bartlomiejpluta.base.editor.event.UpdateCompilationLogEvent
 import com.bartlomiejpluta.base.editor.main.controller.MainController
 import com.bartlomiejpluta.base.editor.map.model.map.GameMap
@@ -32,6 +33,45 @@ class MainView : View("BASE Game Editor") {
 
    private var compilationLogItem: DrawerItem by singleAssign()
 
+   private val tabPane = tabpane {
+
+      // FIXME
+      // For some reason the plain object binding does not work between tabs and mainController.openItems.
+      // Because of that, the cache openTabs map has been created and the binding is done by following listener:
+      mainController.openItems.addListener(MapChangeListener {
+         when {
+            it.wasAdded() -> createTab(it.key, it.valueAdded).let { tab ->
+               openTabs[it.key] = tab
+               tabs += tab
+            }
+
+            it.wasRemoved() -> {
+               val tab = openTabs[it.key]
+               openTabs.remove(it.key)
+
+               // FIXME
+               // This ugly hack prevents from double-firing the CLOSED EVENT
+               // when user tries to close tab from the UI (cross sign).
+               // When user clicks the close button, the event is fired automatically,
+               // which removes the item from mainController.openItems.
+               // Right here, this listener would fire the event once again,
+               // so essentially we need to check if the tab exists in TabPane.tabs
+               // (which means the tab wasn't be closed from UI). If so, we need to fire
+               // the event manually since it won't be fired by TabPane.
+               // Otherwise, if the tab does not exist in tabs anymore, the tab
+               // was closed from UI and likely the event has been fired automatically.
+               // The same goes for the TAB_CLOSE_REQUEST event.
+               if (tab in tabs) {
+                  Event.fireEvent(tab, Event(Tab.CLOSED_EVENT))
+                  Event.fireEvent(tab, Event(Tab.TAB_CLOSE_REQUEST_EVENT))
+               }
+
+               tabs -= tab
+            }
+         }
+      })
+   }
+
    init {
       projectContext.projectProperty.addListener { _, _, project ->
          val projectName = project?.let { " :: ${it.name} (${it.sourceDirectory.absolutePath})" } ?: ""
@@ -41,49 +81,18 @@ class MainView : View("BASE Game Editor") {
       subscribe<UpdateCompilationLogEvent> {
          compilationLogItem.expanded = true
       }
+
+      subscribe<SelectMainViewTabEvent> { event ->
+         openTabs[event.targetScope]?.let {
+            tabPane.selectionModel.select(it)
+         }
+      }
    }
 
    override val root = borderpane {
       top = mainMenuView.root
 
-      center = tabpane {
-
-         // FIXME
-         // For some reason the plain object binding does not work between tabs and mainController.openItems.
-         // Because of that, the cache openTabs map has been created and the binding is done by following listener:
-         mainController.openItems.addListener(MapChangeListener {
-            when {
-               it.wasAdded() -> createTab(it.key, it.valueAdded).let { tab ->
-                  openTabs[it.key] = tab
-                  tabs += tab
-               }
-
-               it.wasRemoved() -> {
-                  val tab = openTabs[it.key]
-                  openTabs.remove(it.key)
-
-                  // FIXME
-                  // This ugly hack prevents from double-firing the CLOSED EVENT
-                  // when user tries to close tab from the UI (cross sign).
-                  // When user clicks the close button, the event is fired automatically,
-                  // which removes the item from mainController.openItems.
-                  // Right here, this listener would fire the event once again,
-                  // so essentially we need to check if the tab exists in TabPane.tabs
-                  // (which means the tab wasn't be closed from UI). If so, we need to fire
-                  // the event manually since it won't be fired by TabPane.
-                  // Otherwise, if the tab does not exist in tabs anymore, the tab
-                  // was closed from UI and likely the event has been fired automatically.
-                  // The same goes for the TAB_CLOSE_REQUEST event.
-                  if (tab in tabs) {
-                     Event.fireEvent(tab, Event(Tab.CLOSED_EVENT))
-                     Event.fireEvent(tab, Event(Tab.TAB_CLOSE_REQUEST_EVENT))
-                  }
-
-                  tabs -= tab
-               }
-            }
-         })
-      }
+      center = tabPane
 
       left = drawer(multiselect = true) {
          item("Code", expanded = false) {