src/Tools/jEdit/src/completion_popup.scala
author wenzelm
Wed, 21 Jun 2017 14:30:20 +0200
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child 66152 18e1aba549f6
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/*  Title:      Tools/jEdit/src/completion_popup.scala
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    Author:     Makarius
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Completion popup.
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*/
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package isabelle.jedit
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import isabelle._
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import java.awt.{Color, Font, Point, BorderLayout, Dimension}
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import java.awt.event.{KeyEvent, MouseEvent, MouseAdapter, FocusAdapter, FocusEvent}
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import java.io.{File => JFile}
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import java.util.regex.Pattern
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import javax.swing.{JPanel, JComponent, JLayeredPane, SwingUtilities}
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import javax.swing.border.LineBorder
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import javax.swing.text.DefaultCaret
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import scala.swing.{ListView, ScrollPane}
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import scala.swing.event.MouseClicked
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import org.gjt.sp.jedit.View
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import org.gjt.sp.jedit.textarea.{JEditTextArea, TextArea, Selection}
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import org.gjt.sp.jedit.gui.{HistoryTextField, KeyEventWorkaround}
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import org.gjt.sp.util.StandardUtilities
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object Completion_Popup
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{
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  /** items with HTML rendering **/
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  private class Item(val item: Completion.Item)
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  {
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    private val html =
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      item.description match {
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        case a :: bs =>
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          "<html><b>" + HTML.output(Symbol.print_newlines(a)) + "</b>" +
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            HTML.output(bs.map(b => " " + Symbol.print_newlines(b)).mkString) + "</html>"
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        case Nil => ""
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      }
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    override def toString: String = html
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  }
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  /** jEdit text area **/
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  object Text_Area
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  {
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    private val key = new Object
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    def apply(text_area: TextArea): Option[Completion_Popup.Text_Area] =
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    {
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      GUI_Thread.require {}
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      text_area.getClientProperty(key) match {
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        case text_area_completion: Completion_Popup.Text_Area => Some(text_area_completion)
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        case _ => None
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      }
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    }
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    def active_range(text_area: TextArea): Option[Text.Range] =
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      apply(text_area) match {
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        case Some(text_area_completion) => text_area_completion.active_range
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        case None => None
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      }
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    def action(text_area: TextArea, word_only: Boolean): Boolean =
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      apply(text_area) match {
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        case Some(text_area_completion) =>
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          if (text_area_completion.active_range.isDefined)
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            text_area_completion.action(word_only = word_only)
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          else
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            text_area_completion.action(immediate = true, explicit = true, word_only = word_only)
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          true
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        case None => false
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      }
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    def exit(text_area: JEditTextArea)
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    {
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      GUI_Thread.require {}
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      apply(text_area) match {
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        case None =>
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        case Some(text_area_completion) =>
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          text_area_completion.deactivate()
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          text_area.putClientProperty(key, null)
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      }
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    }
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    def init(text_area: JEditTextArea): Completion_Popup.Text_Area =
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    {
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      exit(text_area)
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      val text_area_completion = new Text_Area(text_area)
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      text_area.putClientProperty(key, text_area_completion)
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      text_area_completion.activate()
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      text_area_completion
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    }
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    def dismissed(text_area: TextArea): Boolean =
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    {
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      GUI_Thread.require {}
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      apply(text_area) match {
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        case Some(text_area_completion) => text_area_completion.dismissed()
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        case None => false
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      }
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    }
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  }
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  class Text_Area private(text_area: JEditTextArea)
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  {
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    // owned by GUI thread
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    private var completion_popup: Option[Completion_Popup] = None
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    def active_range: Option[Text.Range] =
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      completion_popup match {
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        case Some(completion) => completion.active_range
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        case None => None
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      }
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    /* rendering */
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    def rendering(rendering: JEdit_Rendering, line_range: Text.Range): Option[Text.Info[Color]] =
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    {
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      active_range match {
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        case Some(range) => range.try_restrict(line_range)
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        case None =>
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          val caret = text_area.getCaretPosition
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          if (line_range.contains(caret)) {
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            rendering.before_caret_range(caret).try_restrict(line_range) match {
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              case Some(range) if !range.is_singularity =>
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                val range0 =
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                  Completion.Result.merges(Completion.History.empty,
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                    syntax_completion(Completion.History.empty, true, Some(rendering)),
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                    path_completion(rendering),
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                    JEdit_Bibtex.completion(Completion.History.empty, rendering, caret))
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                  .map(_.range)
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                rendering.semantic_completion(range0, range) match {
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                  case None => range0
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                  case Some(Text.Info(_, Completion.No_Completion)) => None
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                  case Some(Text.Info(range1, _: Completion.Names)) => Some(range1)
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                }
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              case _ => None
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            }
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          }
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          else None
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      }
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    }.map(range => Text.Info(range, rendering.completion_color))
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    /* syntax completion */
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    def syntax_completion(
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      history: Completion.History,
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      explicit: Boolean,
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      opt_rendering: Option[JEdit_Rendering]): Option[Completion.Result] =
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    {
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      val buffer = text_area.getBuffer
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      val unicode = Isabelle_Encoding.is_active(buffer)
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      Isabelle.buffer_syntax(buffer) match {
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        case Some(syntax) =>
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          val context =
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            (for {
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              rendering <- opt_rendering
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              if PIDE.options.bool("jedit_completion_context")
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              caret_range = rendering.before_caret_range(text_area.getCaretPosition)
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              context <- rendering.language_context(caret_range)
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            } yield context) getOrElse syntax.language_context
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          val caret = text_area.getCaretPosition
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          val line_range = JEdit_Lib.line_range(buffer, text_area.getCaretLine)
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          val line_start = line_range.start
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          for {
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            line_text <- JEdit_Lib.try_get_text(buffer, line_range)
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            result <-
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              syntax.completion.complete(
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                history, unicode, explicit, line_start, line_text, caret - line_start, context)
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          } yield result
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        case None => None
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      }
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    }
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    /* path completion */
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    def path_completion(rendering: JEdit_Rendering): Option[Completion.Result] =
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    {
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      def complete(text: String): List[(String, List[String])] =
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      {
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        try {
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          val path = Path.explode(text)
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          val (dir, base_name) =
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            if (text == "" || text.endsWith("/")) (path, "")
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            else (path.dir, path.base_name)
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          val directory = new JFile(PIDE.resources.append(rendering.snapshot.node_name, dir))
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          val files = directory.listFiles
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          if (files == null) Nil
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          else {
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            val ignore =
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              Library.space_explode(':', PIDE.options.string("jedit_completion_path_ignore")).
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                map(s => Pattern.compile(StandardUtilities.globToRE(s)))
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            (for {
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              file <- files.iterator
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              name = file.getName
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              if name.startsWith(base_name)
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              if !ignore.exists(pat => pat.matcher(name).matches)
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              text1 = (dir + Path.basic(name)).implode_short
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              if text != text1
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              is_dir = new JFile(directory, name).isDirectory
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              replacement = text1 + (if (is_dir) "/" else "")
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              descr = List(text1, if (is_dir) "(directory)" else "(file)")
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            } yield (replacement, descr)).take(PIDE.options.int("completion_limit")).toList
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          }
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        }
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        catch { case ERROR(_) => Nil }
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      }
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      def is_wrapped(s: String): Boolean =
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        s.startsWith("\"") && s.endsWith("\"") ||
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        s.startsWith(Symbol.open_decoded) && s.endsWith(Symbol.close_decoded)
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      for {
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        r1 <- rendering.language_path(rendering.before_caret_range(text_area.getCaretPosition))
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        s1 <- JEdit_Lib.try_get_text(text_area.getBuffer, r1)
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        if is_wrapped(s1)
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        r2 = Text.Range(r1.start + 1, r1.stop - 1)
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        s2 = s1.substring(1, s1.length - 1)
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        if Path.is_valid(s2)
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        paths = complete(s2)
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        if paths.nonEmpty
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        items = paths.map(p => Completion.Item(r2, s2, "", p._2, p._1, 0, false))
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      } yield Completion.Result(r2, s2, false, items)
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    }
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    /* completion action: text area */
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    private def insert(item: Completion.Item)
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    {
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      GUI_Thread.require {}
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      val buffer = text_area.getBuffer
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      val range = item.range
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      if (buffer.isEditable) {
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        JEdit_Lib.buffer_edit(buffer) {
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          JEdit_Lib.try_get_text(buffer, range) match {
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            case Some(text) if text == item.original =>
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              text_area.getSelectionAtOffset(text_area.getCaretPosition) match {
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                /*rectangular selection as "tall caret"*/
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                case selection : Selection.Rect
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                if selection.getStart(buffer, text_area.getCaretLine) == range.stop =>
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                  text_area.moveCaretPosition(range.stop)
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                  (0 until Character.codePointCount(item.original, 0, item.original.length))
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                    .foreach(_ => text_area.backspace())
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                  text_area.setSelectedText(selection, item.replacement)
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                  text_area.moveCaretPosition(text_area.getCaretPosition + item.move)
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                /*other selections: rectangular, multiple range, ...*/
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                case selection
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                if selection != null &&
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                    selection.getStart(buffer, text_area.getCaretLine) == range.start &&
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                    selection.getEnd(buffer, text_area.getCaretLine) == range.stop =>
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                  text_area.moveCaretPosition(range.stop + item.move)
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                  text_area.getSelection.foreach(text_area.setSelectedText(_, item.replacement))
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                /*no selection*/
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                case _ =>
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                  buffer.remove(range.start, range.length)
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                  buffer.insert(range.start, item.replacement)
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                  text_area.moveCaretPosition(range.start + item.replacement.length + item.move)
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              }
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            case _ =>
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          }
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        }
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      }
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    }
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    def action(
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      immediate: Boolean = false,
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      explicit: Boolean = false,
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      delayed: Boolean = false,
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      word_only: Boolean = false): Boolean =
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    {
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      val view = text_area.getView
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      val layered = view.getLayeredPane
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   293
      val buffer = text_area.getBuffer
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   294
      val painter = text_area.getPainter
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   295
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   296
      val history = PIDE.plugin.completion_history.value
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   297
      val unicode = Isabelle_Encoding.is_active(buffer)
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   298
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      def open_popup(result: Completion.Result)
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      {
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   301
        val font =
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   302
          painter.getFont.deriveFont(
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   303
            Font_Info.main_size(PIDE.options.real("jedit_popup_font_scale")))
55693
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   304
55711
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   305
        val range = result.range
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   306
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   307
        val loc1 = text_area.offsetToXY(range.start)
55693
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diff changeset
   308
        if (loc1 != null) {
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diff changeset
   309
          val loc2 =
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diff changeset
   310
            SwingUtilities.convertPoint(painter,
58767
30766b5fd0e1 proper line height and text base line, like regular TextAreaPainter.PaintText;
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              loc1.x, loc1.y + painter.getLineHeight, layered)
55693
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   312
55978
56645c447ee9 tuned description and its rendering;
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   313
          val items = result.items.map(new Item(_))
55693
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   314
          val completion =
56197
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   315
            new Completion_Popup(Some(range), layered, loc2, font, items)
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diff changeset
   316
            {
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              override def complete(item: Completion.Item) {
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   318
                PIDE.plugin.completion_history.update(item)
55693
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   319
                insert(item)
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diff changeset
   320
              }
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   321
              override def propagate(evt: KeyEvent) {
56840
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   322
                if (view.getKeyEventInterceptor == null)
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parents: 56662
diff changeset
   323
                  JEdit_Lib.propagate_key(view, evt)
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parents: 56662
diff changeset
   324
                else if (view.getKeyEventInterceptor == inner_key_listener) {
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
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diff changeset
   325
                  try {
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
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diff changeset
   326
                    view.setKeyEventInterceptor(null)
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wenzelm
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diff changeset
   327
                    JEdit_Lib.propagate_key(view, evt)
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
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diff changeset
   328
                  }
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diff changeset
   329
                  finally {
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parents: 56177
diff changeset
   330
                    if (isDisplayable) view.setKeyEventInterceptor(inner_key_listener)
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
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diff changeset
   331
                  }
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diff changeset
   332
                }
56171
15351577da10 clarified key event propagation, in accordance to outer_key_listener;
wenzelm
parents: 56170
diff changeset
   333
                if (evt.getID == KeyEvent.KEY_TYPED) input(evt)
55693
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diff changeset
   334
              }
56197
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wenzelm
parents: 56177
diff changeset
   335
              override def shutdown(focus: Boolean) {
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
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diff changeset
   336
                if (view.getKeyEventInterceptor == inner_key_listener)
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parents: 56177
diff changeset
   337
                  view.setKeyEventInterceptor(null)
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parents: 56177
diff changeset
   338
                if (focus) text_area.requestFocus
56606
68b7a6db4a32 avoid ooddity: invoke intended function instead of java.awt.Container.invalidate();
wenzelm
parents: 56605
diff changeset
   339
                JEdit_Lib.invalidate_range(text_area, range)
56197
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diff changeset
   340
              }
55693
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diff changeset
   341
            }
57127
a406e15c3cf7 make double-sure that old popup is dismissed, before replacing it;
wenzelm
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   342
          dismissed()
55693
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   343
          completion_popup = Some(completion)
56197
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   344
          view.setKeyEventInterceptor(completion.inner_key_listener)
56606
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wenzelm
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diff changeset
   345
          JEdit_Lib.invalidate_range(text_area, range)
56841
bc6faeadbf82 reduced cluttering of popups;
wenzelm
parents: 56840
diff changeset
   346
          Pretty_Tooltip.dismissed_all()
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
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diff changeset
   347
          completion.show_popup(false)
55693
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diff changeset
   348
        }
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diff changeset
   349
      }
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diff changeset
   350
56175
79c29244b377 merge semantic and syntax completion;
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diff changeset
   351
      if (buffer.isEditable) {
66117
e6f808d1307c tuned signature;
wenzelm
parents: 66114
diff changeset
   352
        val caret = text_area.getCaretPosition
64882
c3b42ac0cf81 tuned signature;
wenzelm
parents: 64621
diff changeset
   353
        val opt_rendering = Document_View.get(text_area).map(_.get_rendering())
61601
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
wenzelm
parents: 59319
diff changeset
   354
        val result0 = syntax_completion(history, explicit, opt_rendering)
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
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diff changeset
   355
        val (no_completion, semantic_completion) =
56175
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   356
        {
61601
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wenzelm
parents: 59319
diff changeset
   357
          opt_rendering match {
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
wenzelm
parents: 59319
diff changeset
   358
            case Some(rendering) =>
66055
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parents: 66054
diff changeset
   359
              rendering.semantic_completion_result(history, unicode, result0.map(_.range),
66117
e6f808d1307c tuned signature;
wenzelm
parents: 66114
diff changeset
   360
                rendering.before_caret_range(caret))
61601
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
wenzelm
parents: 59319
diff changeset
   361
            case None => (false, None)
56175
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   362
          }
55693
93ba0085e888 try explicit semantic completion before syntax completion;
wenzelm
parents: 55692
diff changeset
   363
        }
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   364
        if (no_completion) false
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   365
        else {
56564
94c55cc73747 added spell-checker completion dialog, without counting frequency of items due to empty name;
wenzelm
parents: 56326
diff changeset
   366
          val result =
56586
5ef60881681d explicit menu action to complete word;
wenzelm
parents: 56576
diff changeset
   367
          {
61601
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
wenzelm
parents: 59319
diff changeset
   368
            val result1 =
56586
5ef60881681d explicit menu action to complete word;
wenzelm
parents: 56576
diff changeset
   369
              if (word_only) None
61601
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
wenzelm
parents: 59319
diff changeset
   370
              else Completion.Result.merge(history, semantic_completion, result0)
56564
94c55cc73747 added spell-checker completion dialog, without counting frequency of items due to empty name;
wenzelm
parents: 56326
diff changeset
   371
            opt_rendering match {
61601
15952a05133c syntactic completion may supersede semantic completion, e.g. relevant for "\undefined" vs. "undefined" in ML;
wenzelm
parents: 59319
diff changeset
   372
              case None => result1
56564
94c55cc73747 added spell-checker completion dialog, without counting frequency of items due to empty name;
wenzelm
parents: 56326
diff changeset
   373
              case Some(rendering) =>
66151
26eecd42cbc5 tuned signature;
wenzelm
parents: 66120
diff changeset
   374
                Completion.Result.merges(history,
26eecd42cbc5 tuned signature;
wenzelm
parents: 66120
diff changeset
   375
                  result1,
26eecd42cbc5 tuned signature;
wenzelm
parents: 66120
diff changeset
   376
                  JEdit_Spell_Checker.completion(rendering, explicit, caret),
26eecd42cbc5 tuned signature;
wenzelm
parents: 66120
diff changeset
   377
                  path_completion(rendering),
26eecd42cbc5 tuned signature;
wenzelm
parents: 66120
diff changeset
   378
                  JEdit_Bibtex.completion(history, rendering, caret))
56564
94c55cc73747 added spell-checker completion dialog, without counting frequency of items due to empty name;
wenzelm
parents: 56326
diff changeset
   379
            }
56586
5ef60881681d explicit menu action to complete word;
wenzelm
parents: 56576
diff changeset
   380
          }
56175
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   381
          result match {
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   382
            case Some(result) =>
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   383
              result.items match {
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   384
                case List(item) if result.unique && item.immediate && immediate =>
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   385
                  insert(item)
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   386
                  true
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   387
                case _ :: _ if !delayed =>
56175
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   388
                  open_popup(result)
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   389
                  false
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   390
                case _ => false
56175
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   391
              }
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   392
            case None => false
56175
79c29244b377 merge semantic and syntax completion;
wenzelm
parents: 56173
diff changeset
   393
          }
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   394
        }
55752
43d0e2a34c9d uniform insert vs. popup policy;
wenzelm
parents: 55749
diff changeset
   395
      }
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   396
      else false
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   397
    }
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   398
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   399
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   400
    /* input key events */
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   401
53272
0dfd78ff7696 more abstract Completion_Popup.Text_Area;
wenzelm
parents: 53247
diff changeset
   402
    def input(evt: KeyEvent)
53242
142f4fff4e40 tuned signature;
wenzelm
parents: 53237
diff changeset
   403
    {
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   404
      GUI_Thread.require {}
53233
4b422e5d64fd some actual completion via outer syntax;
wenzelm
parents: 53232
diff changeset
   405
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   406
      if (PIDE.options.bool("jedit_completion")) {
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   407
        if (!evt.isConsumed) {
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   408
          dismissed()
53397
b179cdfa9d82 no completion on backspace -- too intrusive, e.g. when deleting keywords;
wenzelm
parents: 53337
diff changeset
   409
          if (evt.getKeyChar != '\b') {
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   410
            val special = JEdit_Lib.special_key(evt)
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   411
            val immediate = PIDE.options.bool("jedit_completion_immediate")
53397
b179cdfa9d82 no completion on backspace -- too intrusive, e.g. when deleting keywords;
wenzelm
parents: 53337
diff changeset
   412
            if (PIDE.options.seconds("jedit_completion_delay").is_zero && !special) {
b179cdfa9d82 no completion on backspace -- too intrusive, e.g. when deleting keywords;
wenzelm
parents: 53337
diff changeset
   413
              input_delay.revoke()
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   414
              action(immediate = immediate)
53397
b179cdfa9d82 no completion on backspace -- too intrusive, e.g. when deleting keywords;
wenzelm
parents: 53337
diff changeset
   415
            }
56326
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   416
            else {
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   417
              if (!special && action(immediate = immediate, delayed = true))
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   418
                input_delay.revoke()
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   419
              else
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   420
                input_delay.invoke()
c3d7b3bb2708 immediate completion even with delay, which is the default according to 638b29331549;
wenzelm
parents: 56325
diff changeset
   421
            }
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   422
          }
53242
142f4fff4e40 tuned signature;
wenzelm
parents: 53237
diff changeset
   423
        }
53228
f6c6688961db some key event handling in the manner of SideKickBindings, SideKickCompletionPopup;
wenzelm
parents: 53226
diff changeset
   424
      }
f6c6688961db some key event handling in the manner of SideKickBindings, SideKickCompletionPopup;
wenzelm
parents: 53226
diff changeset
   425
    }
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   426
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   427
    private val input_delay =
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   428
      GUI_Thread.delay_last(PIDE.options.seconds("jedit_completion_delay")) {
53322
a4cd032172e0 allow short words for explicit completion;
wenzelm
parents: 53297
diff changeset
   429
        action()
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   430
      }
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   431
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   432
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   433
    /* dismiss popup */
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   434
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   435
    def dismissed(): Boolean =
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   436
    {
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   437
      GUI_Thread.require {}
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   438
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   439
      completion_popup match {
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   440
        case Some(completion) =>
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   441
          completion.hide_popup()
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   442
          completion_popup = None
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   443
          true
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   444
        case None =>
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   445
          false
53273
473ea1ed7503 some completion options;
wenzelm
parents: 53272
diff changeset
   446
      }
53292
f567c1c7b180 option to insert unique completion immediately into buffer;
wenzelm
parents: 53275
diff changeset
   447
    }
53274
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   448
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   449
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   450
    /* activation */
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   451
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   452
    private val outer_key_listener =
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   453
      JEdit_Lib.key_listener(key_typed = input _)
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   454
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   455
    private def activate()
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   456
    {
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   457
      text_area.addKeyListener(outer_key_listener)
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   458
    }
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   459
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   460
    private def deactivate()
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   461
    {
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   462
      dismissed()
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   463
      text_area.removeKeyListener(outer_key_listener)
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   464
    }
53228
f6c6688961db some key event handling in the manner of SideKickBindings, SideKickCompletionPopup;
wenzelm
parents: 53226
diff changeset
   465
  }
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   466
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   467
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   468
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   469
  /** history text field **/
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   470
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   471
  class History_Text_Field(
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   472
    name: String = null,
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   473
    instant_popups: Boolean = false,
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   474
    enter_adds_to_history: Boolean = true,
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   475
    syntax: Outer_Syntax = Outer_Syntax.init) extends
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   476
    HistoryTextField(name, instant_popups, enter_adds_to_history)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   477
  {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   478
    text_field =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   479
53848
8d7029eb0c31 disable standard behaviour of Mac OS X text field (i.e. select-all after focus gain) in order to make completion work more smoothly;
wenzelm
parents: 53784
diff changeset
   480
    // see https://forums.oracle.com/thread/1361677
8d7029eb0c31 disable standard behaviour of Mac OS X text field (i.e. select-all after focus gain) in order to make completion work more smoothly;
wenzelm
parents: 53784
diff changeset
   481
    if (GUI.is_macos_laf) text_field.setCaret(new DefaultCaret)
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   482
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   483
    // owned by GUI thread
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   484
    private var completion_popup: Option[Completion_Popup] = None
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   485
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   486
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   487
    /* dismiss */
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   488
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   489
    private def dismissed(): Boolean =
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   490
    {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   491
      completion_popup match {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   492
        case Some(completion) =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   493
          completion.hide_popup()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   494
          completion_popup = None
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   495
          true
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   496
        case None =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   497
          false
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   498
      }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   499
    }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   500
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   501
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   502
    /* insert */
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   503
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   504
    private def insert(item: Completion.Item)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   505
    {
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   506
      GUI_Thread.require {}
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   507
55692
19e8b00684f7 more explicit Completion.Item.range, independently of caret;
wenzelm
parents: 55690
diff changeset
   508
      val range = item.range
56863
5fdb61a9a010 allow empty original, e.g. path "";
wenzelm
parents: 56844
diff changeset
   509
      if (text_field.isEditable) {
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   510
        val content = text_field.getText
66114
c137a9f038a6 clarified signature;
wenzelm
parents: 66055
diff changeset
   511
        range.try_substring(content) match {
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   512
          case Some(text) if text == item.original =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   513
            text_field.setText(
55692
19e8b00684f7 more explicit Completion.Item.range, independently of caret;
wenzelm
parents: 55690
diff changeset
   514
              content.substring(0, range.start) +
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   515
              item.replacement +
55692
19e8b00684f7 more explicit Completion.Item.range, independently of caret;
wenzelm
parents: 55690
diff changeset
   516
              content.substring(range.stop))
19e8b00684f7 more explicit Completion.Item.range, independently of caret;
wenzelm
parents: 55690
diff changeset
   517
            text_field.getCaret.setDot(range.start + item.replacement.length + item.move)
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   518
          case _ =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   519
        }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   520
      }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   521
    }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   522
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   523
56170
638b29331549 allow implicit semantic completion, notably after delay that exceeds usual round-trip time;
wenzelm
parents: 55978
diff changeset
   524
    /* completion action: text field */
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   525
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   526
    def action()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   527
    {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   528
      GUI.layered_pane(text_field) match {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   529
        case Some(layered) if text_field.isEditable =>
65239
509a9b0ad02e avoid global variables with implicit initialization;
wenzelm
parents: 65139
diff changeset
   530
          val history = PIDE.plugin.completion_history.value
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   531
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   532
          val caret = text_field.getCaret.getDot
55813
08a1c860bc12 allow completion within a word (or symbol), like semantic completion;
wenzelm
parents: 55767
diff changeset
   533
          val text = text_field.getText
55748
2e1398b484aa no word completion within word context;
wenzelm
parents: 55747
diff changeset
   534
55749
75a48dc4383e tuned signature;
wenzelm
parents: 55748
diff changeset
   535
          val context = syntax.language_context
55748
2e1398b484aa no word completion within word context;
wenzelm
parents: 55747
diff changeset
   536
57588
ff31aad27661 discontinued unfinished attempts at syntactic word context (see 2e1398b484aa, 08a1c860bc12, 7f229b0212fe) -- back to more basic completion of Isabelle2013-2;
wenzelm
parents: 57127
diff changeset
   537
          syntax.completion.complete(history, true, false, 0, text, caret, context) match {
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   538
            case Some(result) =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   539
              val fm = text_field.getFontMetrics(text_field.getFont)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   540
              val loc =
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   541
                SwingUtilities.convertPoint(text_field, fm.stringWidth(text), fm.getHeight, layered)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   542
55978
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   543
              val items = result.items.map(new Item(_))
55711
9e3d64e5919a paint completion range of active popup;
wenzelm
parents: 55693
diff changeset
   544
              val completion =
55978
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   545
                new Completion_Popup(None, layered, loc, text_field.getFont, items)
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   546
                {
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   547
                  override def complete(item: Completion.Item) {
65239
509a9b0ad02e avoid global variables with implicit initialization;
wenzelm
parents: 65139
diff changeset
   548
                    PIDE.plugin.completion_history.update(item)
55978
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   549
                    insert(item)
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   550
                  }
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   551
                  override def propagate(evt: KeyEvent) {
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   552
                    if (!evt.isConsumed) text_field.processKeyEvent(evt)
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   553
                  }
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   554
                  override def shutdown(focus: Boolean) { if (focus) text_field.requestFocus }
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   555
                }
57127
a406e15c3cf7 make double-sure that old popup is dismissed, before replacing it;
wenzelm
parents: 57051
diff changeset
   556
              dismissed()
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   557
              completion_popup = Some(completion)
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   558
              completion.show_popup(true)
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   559
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   560
            case None =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   561
          }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   562
        case _ =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   563
      }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   564
    }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   565
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   566
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   567
    /* process key event */
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   568
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   569
    private def process(evt: KeyEvent)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   570
    {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   571
      if (PIDE.options.bool("jedit_completion")) {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   572
        dismissed()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   573
        if (evt.getKeyChar != '\b') {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   574
          val special = JEdit_Lib.special_key(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   575
          if (PIDE.options.seconds("jedit_completion_delay").is_zero && !special) {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   576
            process_delay.revoke()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   577
            action()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   578
          }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   579
          else process_delay.invoke()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   580
        }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   581
      }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   582
    }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   583
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   584
    private val process_delay =
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   585
      GUI_Thread.delay_last(PIDE.options.seconds("jedit_completion_delay")) {
53784
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   586
        action()
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   587
      }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   588
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   589
    override def processKeyEvent(evt0: KeyEvent)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   590
    {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   591
      val evt = KeyEventWorkaround.processKeyEvent(evt0)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   592
      if (evt != null) {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   593
        evt.getID match {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   594
          case KeyEvent.KEY_PRESSED =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   595
            val key_code = evt.getKeyCode
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   596
            if (key_code == KeyEvent.VK_ESCAPE) {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   597
              if (dismissed()) evt.consume
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   598
            }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   599
          case KeyEvent.KEY_TYPED =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   600
            super.processKeyEvent(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   601
            process(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   602
            evt.consume
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   603
          case _ =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   604
        }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   605
        if (!evt.isConsumed) super.processKeyEvent(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   606
      }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   607
    }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   608
  }
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   609
}
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   610
53233
4b422e5d64fd some actual completion via outer syntax;
wenzelm
parents: 53232
diff changeset
   611
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   612
class Completion_Popup private(
56605
wenzelm
parents: 56593
diff changeset
   613
  opt_range: Option[Text.Range],
53246
8d34caf5bf82 more elementary Popup via JLayeredPane -- avoid javax.swing.PopupFactory with its many problems and dangers of accidental HeavyWeightPopup (especially on Mac OS X);
wenzelm
parents: 53244
diff changeset
   614
  layered: JLayeredPane,
8d34caf5bf82 more elementary Popup via JLayeredPane -- avoid javax.swing.PopupFactory with its many problems and dangers of accidental HeavyWeightPopup (especially on Mac OS X);
wenzelm
parents: 53244
diff changeset
   615
  location: Point,
53272
0dfd78ff7696 more abstract Completion_Popup.Text_Area;
wenzelm
parents: 53247
diff changeset
   616
  font: Font,
55978
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   617
  items: List[Completion_Popup.Item]) extends JPanel(new BorderLayout)
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   618
{
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   619
  completion =>
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   620
57612
990ffb84489b clarified module name: facilitate alternative GUI frameworks;
wenzelm
parents: 57588
diff changeset
   621
  GUI_Thread.require {}
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   622
59319
wenzelm
parents: 59074
diff changeset
   623
  require(items.nonEmpty)
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   624
  val multi = items.length > 1
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   625
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   626
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   627
  /* actions */
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   628
53275
b34aac6511ab tuned signature;
wenzelm
parents: 53274
diff changeset
   629
  def complete(item: Completion.Item) { }
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   630
  def propagate(evt: KeyEvent) { }
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   631
  def shutdown(focus: Boolean) { }
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   632
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   633
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   634
  /* list view */
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   635
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   636
  private val list_view = new ListView(items)
53272
0dfd78ff7696 more abstract Completion_Popup.Text_Area;
wenzelm
parents: 53247
diff changeset
   637
  list_view.font = font
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   638
  list_view.selection.intervalMode = ListView.IntervalMode.Single
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   639
  list_view.peer.setFocusTraversalKeysEnabled(false)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   640
  list_view.peer.setVisibleRowCount(items.length min 8)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   641
  list_view.peer.setSelectedIndex(0)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   642
53398
f8b150e8778b remove Swing input map, which might bind keys in unexpected ways (e.g. LEFT/RIGHT in singleton list);
wenzelm
parents: 53397
diff changeset
   643
  for (cond <-
f8b150e8778b remove Swing input map, which might bind keys in unexpected ways (e.g. LEFT/RIGHT in singleton list);
wenzelm
parents: 53397
diff changeset
   644
    List(JComponent.WHEN_FOCUSED,
f8b150e8778b remove Swing input map, which might bind keys in unexpected ways (e.g. LEFT/RIGHT in singleton list);
wenzelm
parents: 53397
diff changeset
   645
      JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
f8b150e8778b remove Swing input map, which might bind keys in unexpected ways (e.g. LEFT/RIGHT in singleton list);
wenzelm
parents: 53397
diff changeset
   646
      JComponent.WHEN_IN_FOCUSED_WINDOW)) list_view.peer.setInputMap(cond, null)
f8b150e8778b remove Swing input map, which might bind keys in unexpected ways (e.g. LEFT/RIGHT in singleton list);
wenzelm
parents: 53397
diff changeset
   647
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   648
  private def complete_selected(): Boolean =
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   649
  {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   650
    list_view.selection.items.toList match {
55978
56645c447ee9 tuned description and its rendering;
wenzelm
parents: 55914
diff changeset
   651
      case item :: _ => complete(item.item); true
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   652
      case _ => false
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   653
    }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   654
  }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   655
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   656
  private def move_items(n: Int)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   657
  {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   658
    val i = list_view.peer.getSelectedIndex
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   659
    val j = ((i + n) min (items.length - 1)) max 0
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   660
    if (i != j) {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   661
      list_view.peer.setSelectedIndex(j)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   662
      list_view.peer.ensureIndexIsVisible(j)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   663
    }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   664
  }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   665
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   666
  private def move_pages(n: Int)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   667
  {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   668
    val page_size = list_view.peer.getVisibleRowCount - 1
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   669
    move_items(page_size * n)
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   670
  }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   671
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   672
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   673
  /* event handling */
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   674
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   675
  val inner_key_listener =
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   676
    JEdit_Lib.key_listener(
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   677
      key_pressed = (e: KeyEvent) =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   678
        {
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   679
          if (!e.isConsumed) {
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   680
            e.getKeyCode match {
57833
2c2bae3da1c2 completion popup supports both ENTER and TAB (default);
wenzelm
parents: 57612
diff changeset
   681
              case KeyEvent.VK_ENTER if PIDE.options.bool("jedit_completion_select_enter") =>
2c2bae3da1c2 completion popup supports both ENTER and TAB (default);
wenzelm
parents: 57612
diff changeset
   682
                if (complete_selected()) e.consume
2c2bae3da1c2 completion popup supports both ENTER and TAB (default);
wenzelm
parents: 57612
diff changeset
   683
                hide_popup()
2c2bae3da1c2 completion popup supports both ENTER and TAB (default);
wenzelm
parents: 57612
diff changeset
   684
              case KeyEvent.VK_TAB if PIDE.options.bool("jedit_completion_select_tab") =>
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   685
                if (complete_selected()) e.consume
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   686
                hide_popup()
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   687
              case KeyEvent.VK_ESCAPE =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   688
                hide_popup()
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   689
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   690
              case KeyEvent.VK_UP | KeyEvent.VK_KP_UP if multi =>
53407
wenzelm
parents: 53405
diff changeset
   691
                move_items(-1)
wenzelm
parents: 53405
diff changeset
   692
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   693
              case KeyEvent.VK_DOWN | KeyEvent.VK_KP_DOWN if multi =>
53407
wenzelm
parents: 53405
diff changeset
   694
                move_items(1)
wenzelm
parents: 53405
diff changeset
   695
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   696
              case KeyEvent.VK_PAGE_UP if multi =>
53407
wenzelm
parents: 53405
diff changeset
   697
                move_pages(-1)
wenzelm
parents: 53405
diff changeset
   698
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   699
              case KeyEvent.VK_PAGE_DOWN if multi =>
53407
wenzelm
parents: 53405
diff changeset
   700
                move_pages(1)
wenzelm
parents: 53405
diff changeset
   701
                e.consume
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   702
              case _ =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   703
                if (e.isActionKey || e.isAltDown || e.isMetaDown || e.isControlDown)
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   704
                  hide_popup()
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   705
            }
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   706
          }
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   707
          propagate(e)
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   708
        },
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   709
      key_typed = propagate _
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   710
    )
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   711
53274
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   712
  list_view.peer.addKeyListener(inner_key_listener)
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   713
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   714
  list_view.peer.addMouseListener(new MouseAdapter {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   715
    override def mouseClicked(e: MouseEvent) {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   716
      if (complete_selected()) e.consume
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   717
      hide_popup()
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   718
    }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   719
  })
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   720
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   721
  list_view.peer.addFocusListener(new FocusAdapter {
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   722
    override def focusLost(e: FocusEvent) { hide_popup() }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   723
  })
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   724
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   725
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   726
  /* main content */
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   727
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   728
  override def getFocusTraversalKeysEnabled = false
53297
64c31de7f21c border as for Pretty_Tooltip;
wenzelm
parents: 53296
diff changeset
   729
  completion.setBorder(new LineBorder(Color.BLACK))
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   730
  completion.add((new ScrollPane(list_view)).peer.asInstanceOf[JComponent])
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   731
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   732
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   733
  /* popup */
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   734
56605
wenzelm
parents: 56593
diff changeset
   735
  def active_range: Option[Text.Range] =
wenzelm
parents: 56593
diff changeset
   736
    if (isDisplayable) opt_range else None
wenzelm
parents: 56593
diff changeset
   737
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   738
  private val popup =
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   739
  {
53247
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   740
    val screen = JEdit_Lib.screen_location(layered, location)
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   741
    val size =
53230
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   742
    {
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   743
      val geometry = JEdit_Lib.window_geometry(completion, completion)
64621
7116f2634e32 clarified module name;
wenzelm
parents: 63674
diff changeset
   744
      val bounds = JEdit_Rendering.popup_bounds
53247
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   745
      val w = geometry.width min (screen.bounds.width * bounds).toInt min layered.getWidth
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   746
      val h = geometry.height min (screen.bounds.height * bounds).toInt min layered.getHeight
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   747
      new Dimension(w, h)
53230
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   748
    }
53247
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   749
    new Popup(layered, completion, screen.relative(layered, size), size)
53246
8d34caf5bf82 more elementary Popup via JLayeredPane -- avoid javax.swing.PopupFactory with its many problems and dangers of accidental HeavyWeightPopup (especially on Mac OS X);
wenzelm
parents: 53244
diff changeset
   750
  }
8d34caf5bf82 more elementary Popup via JLayeredPane -- avoid javax.swing.PopupFactory with its many problems and dangers of accidental HeavyWeightPopup (especially on Mac OS X);
wenzelm
parents: 53244
diff changeset
   751
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   752
  private def show_popup(focus: Boolean)
53246
8d34caf5bf82 more elementary Popup via JLayeredPane -- avoid javax.swing.PopupFactory with its many problems and dangers of accidental HeavyWeightPopup (especially on Mac OS X);
wenzelm
parents: 53244
diff changeset
   753
  {
8d34caf5bf82 more elementary Popup via JLayeredPane -- avoid javax.swing.PopupFactory with its many problems and dangers of accidental HeavyWeightPopup (especially on Mac OS X);
wenzelm
parents: 53244
diff changeset
   754
    popup.show
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   755
    if (focus) list_view.requestFocus
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   756
  }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   757
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   758
  private def hide_popup()
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   759
  {
56197
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   760
    shutdown(list_view.peer.isFocusOwner)
416f7a00e4cb back to KeyEventInterceptor (see 423e29f1f304), but without focus change, which helps to avoid loosing key events due to quick opening and closing of popups;
wenzelm
parents: 56177
diff changeset
   761
    popup.hide
53023
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   762
  }
f127e949389f Completion popup based on javax.swing.PopupFactory, which has better cross-platform chances than JWindow (cf. org/gjt/jedit/gui/CompletionPopup.java);
wenzelm
parents:
diff changeset
   763
}