src/Tools/jEdit/src/plugin.scala
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/*  Title:      Tools/jEdit/src/plugin.scala
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    Author:     Makarius
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Main plumbing for PIDE infrastructure as jEdit plugin.
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*/
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package isabelle.jedit
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import isabelle._
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import javax.swing.JOptionPane
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import scala.swing.{ListView, ScrollPane}
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import org.gjt.sp.jedit.{jEdit, EBMessage, EBPlugin, Buffer, View, Debug}
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import org.jedit.options.CombinedOptions
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import org.gjt.sp.jedit.gui.AboutDialog
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import org.gjt.sp.jedit.textarea.{JEditTextArea, TextArea}
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import org.gjt.sp.jedit.syntax.ModeProvider
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import org.gjt.sp.jedit.msg.{EditorStarted, BufferUpdate, EditPaneUpdate, PropertiesChanged}
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import org.gjt.sp.util.SyntaxUtilities
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import scala.actors.Actor._
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object PIDE
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{
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  /* plugin instance */
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  val options = new JEdit_Options
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  val completion_history = new Completion.History_Variable
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  val spell_checker = new Spell_Checker_Variable
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  @volatile var startup_failure: Option[Throwable] = None
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  @volatile var startup_notified = false
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  @volatile var plugin: Plugin = null
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  @volatile var session: Session = new Session(new JEdit_Resources(Set.empty, Outer_Syntax.empty))
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  def options_changed() { plugin.options_changed() }
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  def deps_changed() { plugin.deps_changed() }
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  def resources(): JEdit_Resources =
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    session.resources.asInstanceOf[JEdit_Resources]
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  lazy val editor = new JEdit_Editor
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  /* popups */
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  def dismissed_popups(view: View): Boolean =
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  {
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    var dismissed = false
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    JEdit_Lib.jedit_text_areas(view).foreach(text_area =>
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      if (Completion_Popup.Text_Area.dismissed(text_area)) dismissed = true)
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    if (Pretty_Tooltip.dismissed_all()) dismissed = true
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    dismissed
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  }
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  /* document model and view */
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  def document_model(buffer: Buffer): Option[Document_Model] = Document_Model(buffer)
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  def document_view(text_area: TextArea): Option[Document_View] = Document_View(text_area)
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  def document_views(buffer: Buffer): List[Document_View] =
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    for {
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      text_area <- JEdit_Lib.jedit_text_areas(buffer).toList
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      doc_view <- document_view(text_area)
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    } yield doc_view
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  def document_models(): List[Document_Model] =
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    for {
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      buffer <- JEdit_Lib.jedit_buffers().toList
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      model <- document_model(buffer)
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    } yield model
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  def document_blobs(): Document.Blobs =
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    Document.Blobs(
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      (for {
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        buffer <- JEdit_Lib.jedit_buffers()
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        model <- document_model(buffer)
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        blob <- model.get_blob()
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      } yield (model.node_name -> blob)).toMap)
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  def exit_models(buffers: List[Buffer])
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  {
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    Swing_Thread.now {
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      PIDE.editor.flush()
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      buffers.foreach(buffer =>
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        JEdit_Lib.buffer_lock(buffer) {
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          JEdit_Lib.jedit_text_areas(buffer).foreach(Document_View.exit)
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          Document_Model.exit(buffer)
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        })
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      }
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  }
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  def init_models()
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  {
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    Swing_Thread.now {
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      PIDE.editor.flush()
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      for {
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        buffer <- JEdit_Lib.jedit_buffers()
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        if buffer != null && !buffer.isLoading && !buffer.getBooleanProperty(Buffer.GZIPPED)
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      } {
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        JEdit_Lib.buffer_lock(buffer) {
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          val node_name = resources.node_name(buffer)
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          val model =
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            document_model(buffer) match {
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              case Some(model) if model.node_name == node_name => model
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              case _ => Document_Model.init(session, buffer, node_name)
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            }
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          for {
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            text_area <- JEdit_Lib.jedit_text_areas(buffer)
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            if document_view(text_area).map(_.model) != Some(model)
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          } Document_View.init(model, text_area)
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        }
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      }
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      PIDE.editor.invoke()
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    }
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  }
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  def init_view(buffer: Buffer, text_area: JEditTextArea)
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  {
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    JEdit_Lib.swing_buffer_lock(buffer) {
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      document_model(buffer) match {
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        case Some(model) => Document_View.init(model, text_area)
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        case None =>
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      }
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    }
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  }
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  def exit_view(buffer: Buffer, text_area: JEditTextArea)
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  {
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    JEdit_Lib.swing_buffer_lock(buffer) {
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      Document_View.exit(text_area)
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    }
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  }
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  /* current document content */
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  def snapshot(view: View): Document.Snapshot =
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  {
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    val buffer = view.getBuffer
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    document_model(buffer) match {
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      case Some(model) => model.snapshot
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      case None => error("No document model for current buffer")
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    }
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  }
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  def rendering(view: View): Rendering =
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  {
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    val text_area = view.getTextArea
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    document_view(text_area) match {
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      case Some(doc_view) => doc_view.get_rendering()
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      case None => error("No document view for current text area")
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    }
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  }
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}
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class Plugin extends EBPlugin
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{
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  /* global changes */
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  def options_changed()
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  {
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    PIDE.session.global_options.event(Session.Global_Options(PIDE.options.value))
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    Swing_Thread.later { delay_load.invoke() }
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  }
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  def deps_changed()
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  {
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    Swing_Thread.later { delay_load.invoke() }
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  }
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  /* theory files */
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  private lazy val delay_init =
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    Swing_Thread.delay_last(PIDE.options.seconds("editor_load_delay"))
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    {
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      PIDE.init_models()
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    }
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  private lazy val delay_load =
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    Swing_Thread.delay_last(PIDE.options.seconds("editor_load_delay"))
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    {
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      if (Isabelle.continuous_checking) {
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        val view = jEdit.getActiveView()
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        val buffers = JEdit_Lib.jedit_buffers().toList
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        if (buffers.forall(_.isLoaded)) {
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          def loaded_buffer(name: String): Boolean =
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            buffers.exists(buffer => JEdit_Lib.buffer_name(buffer) == name)
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          val thys =
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            for {
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              buffer <- buffers
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              model <- PIDE.document_model(buffer)
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              if model.is_theory
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            } yield (model.node_name, Position.none)
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          val thy_info = new Thy_Info(PIDE.resources)
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          // FIXME avoid I/O in Swing thread!?!
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          val files = thy_info.dependencies(thys).deps.map(_.name.node).
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            filter(file => !loaded_buffer(file) && PIDE.resources.check_file(view, file))
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          if (!files.isEmpty) {
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            if (PIDE.options.bool("jedit_auto_load")) {
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              files.foreach(file => jEdit.openFile(null: View, file))
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            }
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            else {
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              val files_list = new ListView(files.sorted)
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              for (i <- 0 until files.length)
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                files_list.selection.indices += i
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              val answer =
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                GUI.confirm_dialog(view,
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                  "Auto loading of required files",
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                  JOptionPane.YES_NO_OPTION,
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                  "The following files are required to resolve theory imports.",
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                  "Reload selected files now?",
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                  new ScrollPane(files_list),
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                  new Isabelle.Continuous_Checking)
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              if (answer == 0) {
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                files.foreach(file =>
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                  if (files_list.selection.items.contains(file))
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                    jEdit.openFile(null: View, file))
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              }
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            }
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          }
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        }
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      }
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    }
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  /* session manager */
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  private val session_manager = actor {
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    loop {
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      react {
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        case phase: Session.Phase =>
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          phase match {
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            case Session.Inactive | Session.Failed =>
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              Swing_Thread.later {
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                GUI.error_dialog(jEdit.getActiveView, "Prover process terminated",
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                    "Isabelle Syslog", GUI.scrollable_text(PIDE.session.current_syslog()))
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              }
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            case Session.Ready =>
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              PIDE.session.update_options(PIDE.options.value)
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              PIDE.init_models()
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              Swing_Thread.later { delay_load.invoke() }
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            case Session.Shutdown =>
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              PIDE.exit_models(JEdit_Lib.jedit_buffers().toList)
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              Swing_Thread.later { delay_load.revoke() }
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            case _ =>
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          }
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        case bad => System.err.println("session_manager: ignoring bad message " + bad)
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      }
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    }
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  }
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  /* main plugin plumbing */
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  override def handleMessage(message: EBMessage)
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  {
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    Swing_Thread.assert()
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    if (PIDE.startup_failure.isDefined && !PIDE.startup_notified) {
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      message match {
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        case msg: EditorStarted =>
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          GUI.error_dialog(null, "Isabelle plugin startup failure",
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            GUI.scrollable_text(Exn.message(PIDE.startup_failure.get)),
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            "Prover IDE inactive!")
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          PIDE.startup_notified = true
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        case _ =>
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      }
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    }
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    if (PIDE.startup_failure.isEmpty) {
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      message match {
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        case msg: EditorStarted =>
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          PIDE.session.start("Isabelle", Isabelle_Logic.session_args())
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        case msg: BufferUpdate
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        if msg.getWhat == BufferUpdate.LOADED || msg.getWhat == BufferUpdate.PROPERTIES_CHANGED =>
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          if (PIDE.session.is_ready) {
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            delay_init.invoke()
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            delay_load.invoke()
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          }
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        case msg: EditPaneUpdate
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        if (msg.getWhat == EditPaneUpdate.BUFFER_CHANGING ||
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            msg.getWhat == EditPaneUpdate.BUFFER_CHANGED ||
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            msg.getWhat == EditPaneUpdate.CREATED ||
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            msg.getWhat == EditPaneUpdate.DESTROYED) =>
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          val edit_pane = msg.getEditPane
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          val buffer = edit_pane.getBuffer
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          val text_area = edit_pane.getTextArea
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          if (buffer != null && text_area != null) {
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            if (msg.getWhat == EditPaneUpdate.BUFFER_CHANGED ||
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                msg.getWhat == EditPaneUpdate.CREATED) {
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              if (PIDE.session.is_ready)
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                PIDE.init_view(buffer, text_area)
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            }
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            else {
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              PIDE.dismissed_popups(text_area.getView)
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              PIDE.exit_view(buffer, text_area)
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            }
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            if (msg.getWhat == EditPaneUpdate.CREATED)
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              Completion_Popup.Text_Area.init(text_area)
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            if (msg.getWhat == EditPaneUpdate.DESTROYED)
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              Completion_Popup.Text_Area.exit(text_area)
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17d431c92575 init/exit model/view synchronously within the swing thread -- EditBus.send in jedit-4.4.1 always runs there;
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          }
34784
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        case msg: PropertiesChanged =>
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   334
          PIDE.spell_checker.update(PIDE.options.value)
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          PIDE.session.update_options(PIDE.options.value)
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   336
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        case _ =>
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      }
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    }
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  }
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  override def start()
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  {
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   344
    try {
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985c081a4f11 disable search dialog pool on all platforms -- to prevent GUI synchronization problems seen on KDE (e.g. Kubuntu 12.10);
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      Debug.DISABLE_SEARCH_DIALOG_POOL = true
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   346
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   347
      PIDE.plugin = this
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   348
      Isabelle_System.init()
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22d1dd43f089 separate module Isabelle_Font, to keep this out of the way of generic Isabelle_System operations, notably for non-Isabelle/jEdit applications;
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   349
      Isabelle_Font.install_fonts()
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53338
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   351
      PIDE.options.update(Options.init())
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   352
      PIDE.completion_history.load()
56558
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diff changeset
   353
      PIDE.spell_checker.update(PIDE.options.value)
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   354
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   355
      SyntaxUtilities.setStyleExtender(new Token_Markup.Style_Extender)
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   356
      if (ModeProvider.instance.isInstanceOf[ModeProvider])
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   357
        ModeProvider.instance = new Token_Markup.Mode_Provider(ModeProvider.instance)
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   358
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   359
      JEdit_Lib.jedit_text_areas.foreach(Completion_Popup.Text_Area.init _)
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   360
49246
248e66e8321f more systematic JEdit_Options.make_component;
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diff changeset
   361
      val content = Isabelle_Logic.session_content(false)
56208
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diff changeset
   362
      val resources = new JEdit_Resources(content.loaded_theories, content.syntax)
49524
68796a77c42b Thy_Syntax.consolidate_spans is subject to editor_reparse_limit, for improved experience of unbalanced comments etc.;
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diff changeset
   363
56208
06cc31dff138 clarifed module name;
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diff changeset
   364
      PIDE.session = new Session(resources) {
50207
54be125d8cdc tuned signature;
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diff changeset
   365
        override def output_delay = PIDE.options.seconds("editor_output_delay")
50205
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   366
        override def reparse_limit = PIDE.options.int("editor_reparse_limit")
49288
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   367
      }
48870
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diff changeset
   368
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   369
      PIDE.session.phase_changed += session_manager
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   370
      PIDE.startup_failure = None
49099
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   371
    }
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   372
    catch {
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diff changeset
   373
      case exn: Throwable =>
50205
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   374
        PIDE.startup_failure = Some(exn)
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   375
        PIDE.startup_notified = false
49099
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   376
    }
34318
c13e168a8ae6 original sources from Johannes Hölzl a48e0c6ab1aea77c52d596f7efc007a543d3d10c with minor modifications of directory layout;
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   377
  }
34618
e45052ff7233 added Boolean_Property, Int_Property;
wenzelm
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diff changeset
   378
39628
f6e82967b5cd Plugin.stop: refrain from invalidating Isabelle.session -- some actors/dockables out there might still refer to it;
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diff changeset
   379
  override def stop()
34618
e45052ff7233 added Boolean_Property, Int_Property;
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   380
  {
53274
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
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diff changeset
   381
    JEdit_Lib.jedit_text_areas.foreach(Completion_Popup.Text_Area.exit _)
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diff changeset
   382
53337
b3817a0e3211 sort items according to persistent history of frequency of use;
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diff changeset
   383
    if (PIDE.startup_failure.isEmpty) {
50205
788c8263e634 renamed main plugin object to PIDE;
wenzelm
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diff changeset
   384
      PIDE.options.value.save_prefs()
53337
b3817a0e3211 sort items according to persistent history of frequency of use;
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diff changeset
   385
      PIDE.completion_history.value.save()
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diff changeset
   386
    }
49245
cb70157293c0 manage Isabelle/jEdit options as Isabelle/Scala options (with persistent preferences);
wenzelm
parents: 49195
diff changeset
   387
50205
788c8263e634 renamed main plugin object to PIDE;
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diff changeset
   388
    PIDE.session.phase_changed -= session_manager
50344
608265769ce0 emit bulk edits on initialization of multiple buffers, which greatly improves performance when starting big sessions (e.g. JinjaThreads);
wenzelm
parents: 50209
diff changeset
   389
    PIDE.exit_models(JEdit_Lib.jedit_buffers().toList)
50205
788c8263e634 renamed main plugin object to PIDE;
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parents: 50183
diff changeset
   390
    PIDE.session.stop()
34318
c13e168a8ae6 original sources from Johannes Hölzl a48e0c6ab1aea77c52d596f7efc007a543d3d10c with minor modifications of directory layout;
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diff changeset
   391
  }
c13e168a8ae6 original sources from Johannes Hölzl a48e0c6ab1aea77c52d596f7efc007a543d3d10c with minor modifications of directory layout;
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   392
}