src/Tools/jEdit/src/completion_popup.scala
author wenzelm
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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 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
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import org.gjt.sp.jedit.gui.{HistoryTextField, KeyEventWorkaround}
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object Completion_Popup
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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: JEditTextArea): Option[Completion_Popup.Text_Area] =
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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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    def exit(text_area: JEditTextArea)
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    {
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      Swing_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: JEditTextArea): Boolean =
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    {
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      Swing_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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    private var completion_popup: Option[Completion_Popup] = None
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    /* completion action */
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    private def insert(item: Completion.Item)
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    {
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      Swing_Thread.require()
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      val buffer = text_area.getBuffer
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      val len = item.original.length
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      if (buffer.isEditable && len > 0) {
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        JEdit_Lib.buffer_edit(buffer) {
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          val caret = text_area.getCaretPosition
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          JEdit_Lib.try_get_text(buffer, Text.Range(caret - len, caret)) match {
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            case Some(text) if text == item.original =>
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              buffer.remove(caret - len, len)
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              buffer.insert(caret - len, item.replacement)
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              if (item.move != 0)
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                text_area.moveCaretPosition(text_area.getCaretPosition + item.move)
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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(immediate: Boolean = false, explicit: Boolean = false)
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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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      val buffer = text_area.getBuffer
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      val painter = text_area.getPainter
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      if (buffer.isEditable) {
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        Isabelle.mode_syntax(JEdit_Lib.buffer_mode(buffer)) match {
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          case Some(syntax) =>
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            val caret = text_area.getCaretPosition
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            val line = buffer.getLineOfOffset(caret)
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            val start = buffer.getLineStartOffset(line)
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            val text = buffer.getSegment(start, caret - start)
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            val history = PIDE.completion_history.value
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            val decode = Isabelle_Encoding.is_active(buffer)
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            val context =
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              (PIDE.document_view(text_area) match {
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                case None => None
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                case Some(doc_view) =>
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                  val rendering = doc_view.get_rendering()
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                  rendering.completion_context(JEdit_Lib.stretch_point_range(buffer, caret))
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              }) getOrElse syntax.completion_context
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            syntax.completion.complete(history, decode, explicit, text, context) match {
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              case Some(result) =>
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                if (result.unique && result.items.head.immediate && immediate)
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                  insert(result.items.head)
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                else {
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                  val font =
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                    painter.getFont.deriveFont(Rendering.font_size("jedit_popup_font_scale"))
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                  val loc1 = text_area.offsetToXY(caret - result.original.length)
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                  if (loc1 != null) {
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                    val loc2 =
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                      SwingUtilities.convertPoint(painter,
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                        loc1.x, loc1.y + painter.getFontMetrics.getHeight, layered)
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                    val completion =
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                      new Completion_Popup(layered, loc2, font, result.items) {
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                        override def complete(item: Completion.Item) {
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                          PIDE.completion_history.update(item)
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                          insert(item)
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                        }
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                        override def propagate(evt: KeyEvent) {
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                          JEdit_Lib.propagate_key(view, evt)
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                          input(evt)
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                        }
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                        override def refocus() { text_area.requestFocus }
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                      }
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                    completion_popup = Some(completion)
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                    completion.show_popup()
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                  }
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                }
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              case None =>
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            }
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          case None =>
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        }
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      }
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    }
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    /* input key events */
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    def input(evt: KeyEvent)
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    {
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      Swing_Thread.require()
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      if (PIDE.options.bool("jedit_completion")) {
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        if (!evt.isConsumed) {
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          dismissed()
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          if (evt.getKeyChar != '\b') {
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            val special = JEdit_Lib.special_key(evt)
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            if (PIDE.options.seconds("jedit_completion_delay").is_zero && !special) {
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              input_delay.revoke()
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              action(immediate = PIDE.options.bool("jedit_completion_immediate"))
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            }
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            else input_delay.invoke()
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          }
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        }
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      }
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    }
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    private val input_delay =
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      Swing_Thread.delay_last(PIDE.options.seconds("jedit_completion_delay")) {
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        action()
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      }
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    /* dismiss popup */
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    def dismissed(): Boolean =
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    {
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      Swing_Thread.require()
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      completion_popup match {
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        case Some(completion) =>
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          completion.hide_popup()
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          completion_popup = None
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          true
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        case None =>
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          false
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      }
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    }
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    /* activation */
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    private val outer_key_listener =
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      JEdit_Lib.key_listener(key_typed = input _)
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    private def activate()
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    {
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      text_area.addKeyListener(outer_key_listener)
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    }
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    private def deactivate()
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    {
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      dismissed()
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      text_area.removeKeyListener(outer_key_listener)
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    }
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  }
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  /** history text field **/
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  class History_Text_Field(
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    name: String = null,
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    instant_popups: Boolean = false,
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    enter_adds_to_history: Boolean = true,
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    syntax: Outer_Syntax = Outer_Syntax.init) extends
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    HistoryTextField(name, instant_popups, enter_adds_to_history)
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  {
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    text_field =>
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    // see https://forums.oracle.com/thread/1361677
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    if (GUI.is_macos_laf) text_field.setCaret(new DefaultCaret)
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    private var completion_popup: Option[Completion_Popup] = None
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    /* dismiss */
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    private def dismissed(): Boolean =
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    {
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      completion_popup match {
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        case Some(completion) =>
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          completion.hide_popup()
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          completion_popup = None
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          true
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        case None =>
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          false
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      }
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    }
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    /* insert */
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    private def insert(item: Completion.Item)
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    {
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      Swing_Thread.require()
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      val len = item.original.length
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      if (text_field.isEditable && len > 0) {
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        val caret = text_field.getCaret.getDot
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        val content = text_field.getText
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        JEdit_Lib.try_get_text(content, Text.Range(caret - len, caret)) match {
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          case Some(text) if text == item.original =>
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            text_field.setText(
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              content.substring(0, caret - len) +
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              item.replacement +
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              content.substring(caret))
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            text_field.getCaret.setDot(caret - len + item.replacement.length + item.move)
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          case _ =>
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        }
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      }
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    }
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    /* completion action */
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    def action()
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    {
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      GUI.layered_pane(text_field) match {
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        case Some(layered) if text_field.isEditable =>
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          val history = PIDE.completion_history.value
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          val caret = text_field.getCaret.getDot
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          val text = text_field.getText.substring(0, caret)
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          syntax.completion.complete(
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              history, decode = true, explicit = false, text, syntax.completion_context) match {
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            case Some(result) =>
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              val fm = text_field.getFontMetrics(text_field.getFont)
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              val loc =
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                SwingUtilities.convertPoint(text_field, fm.stringWidth(text), fm.getHeight, layered)
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              val completion = new Completion_Popup(layered, loc, text_field.getFont, result.items)
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              {
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                override def complete(item: Completion.Item) {
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                  PIDE.completion_history.update(item)
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                  insert(item)
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                }
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                override def propagate(evt: KeyEvent) {
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                  if (!evt.isConsumed) text_field.processKeyEvent(evt)
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                }
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                override def refocus() { text_field.requestFocus }
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              }
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              completion_popup = Some(completion)
322a3ff42b33 completion popup for history text field;
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   309
              completion.show_popup()
322a3ff42b33 completion popup for history text field;
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diff changeset
   310
322a3ff42b33 completion popup for history text field;
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            case None =>
322a3ff42b33 completion popup for history text field;
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diff changeset
   312
          }
322a3ff42b33 completion popup for history text field;
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        case _ =>
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   314
      }
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   315
    }
322a3ff42b33 completion popup for history text field;
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322a3ff42b33 completion popup for history text field;
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   317
322a3ff42b33 completion popup for history text field;
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    /* process key event */
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322a3ff42b33 completion popup for history text field;
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   320
    private def process(evt: KeyEvent)
322a3ff42b33 completion popup for history text field;
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   321
    {
322a3ff42b33 completion popup for history text field;
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   322
      if (PIDE.options.bool("jedit_completion")) {
322a3ff42b33 completion popup for history text field;
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diff changeset
   323
        dismissed()
322a3ff42b33 completion popup for history text field;
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diff changeset
   324
        if (evt.getKeyChar != '\b') {
322a3ff42b33 completion popup for history text field;
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   325
          val special = JEdit_Lib.special_key(evt)
322a3ff42b33 completion popup for history text field;
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diff changeset
   326
          if (PIDE.options.seconds("jedit_completion_delay").is_zero && !special) {
322a3ff42b33 completion popup for history text field;
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diff changeset
   327
            process_delay.revoke()
322a3ff42b33 completion popup for history text field;
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   328
            action()
322a3ff42b33 completion popup for history text field;
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diff changeset
   329
          }
322a3ff42b33 completion popup for history text field;
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diff changeset
   330
          else process_delay.invoke()
322a3ff42b33 completion popup for history text field;
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diff changeset
   331
        }
322a3ff42b33 completion popup for history text field;
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diff changeset
   332
      }
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   333
    }
322a3ff42b33 completion popup for history text field;
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diff changeset
   334
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   335
    private val process_delay =
322a3ff42b33 completion popup for history text field;
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diff changeset
   336
      Swing_Thread.delay_last(PIDE.options.seconds("jedit_completion_delay")) {
322a3ff42b33 completion popup for history text field;
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diff changeset
   337
        action()
322a3ff42b33 completion popup for history text field;
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parents: 53407
diff changeset
   338
      }
322a3ff42b33 completion popup for history text field;
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diff changeset
   339
322a3ff42b33 completion popup for history text field;
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diff changeset
   340
    override def processKeyEvent(evt0: KeyEvent)
322a3ff42b33 completion popup for history text field;
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diff changeset
   341
    {
322a3ff42b33 completion popup for history text field;
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diff changeset
   342
      val evt = KeyEventWorkaround.processKeyEvent(evt0)
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   343
      if (evt != null) {
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   344
        evt.getID match {
322a3ff42b33 completion popup for history text field;
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diff changeset
   345
          case KeyEvent.KEY_PRESSED =>
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   346
            val key_code = evt.getKeyCode
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   347
            if (key_code == KeyEvent.VK_ESCAPE) {
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   348
              if (dismissed()) evt.consume
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   349
            }
322a3ff42b33 completion popup for history text field;
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diff changeset
   350
          case KeyEvent.KEY_TYPED =>
322a3ff42b33 completion popup for history text field;
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diff changeset
   351
            super.processKeyEvent(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   352
            process(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   353
            evt.consume
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   354
          case _ =>
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   355
        }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   356
        if (!evt.isConsumed) super.processKeyEvent(evt)
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   357
      }
322a3ff42b33 completion popup for history text field;
wenzelm
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diff changeset
   358
    }
322a3ff42b33 completion popup for history text field;
wenzelm
parents: 53407
diff changeset
   359
  }
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
   360
}
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
   361
53233
4b422e5d64fd some actual completion via outer syntax;
wenzelm
parents: 53232
diff changeset
   362
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
   363
class Completion_Popup private(
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
   364
  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
   365
  location: Point,
53272
0dfd78ff7696 more abstract Completion_Popup.Text_Area;
wenzelm
parents: 53247
diff changeset
   366
  font: Font,
53275
b34aac6511ab tuned signature;
wenzelm
parents: 53274
diff changeset
   367
  items: List[Completion.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
   368
{
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
   369
  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
   370
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
   371
  Swing_Thread.require()
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   372
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   373
  require(!items.isEmpty)
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   374
  val multi = items.length > 1
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   375
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   376
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   377
  /* actions */
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   378
53275
b34aac6511ab tuned signature;
wenzelm
parents: 53274
diff changeset
   379
  def complete(item: Completion.Item) { }
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   380
  def propagate(evt: KeyEvent) { }
53234
ea4abbbe1702 more careful refocus operation: do not reset focus if it was already lost (relevant when activating a different GUI component, for example);
wenzelm
parents: 53233
diff changeset
   381
  def refocus() { }
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
   382
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
   383
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
   384
  /* 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
   385
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
   386
  private val list_view = new ListView(items)
53272
0dfd78ff7696 more abstract Completion_Popup.Text_Area;
wenzelm
parents: 53247
diff changeset
   387
  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
   388
  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
   389
  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
   390
  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
   391
  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
   392
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
   393
  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
   394
    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
   395
      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
   396
      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
   397
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
   398
  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
   399
  {
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
   400
    list_view.selection.items.toList match {
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
   401
      case item :: _ => complete(item); true
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
   402
      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
   403
    }
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
   404
  }
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
   405
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
   406
  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
   407
  {
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
   408
    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
   409
    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
   410
    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
   411
      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
   412
      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
   413
    }
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
   414
  }
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
   415
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
   416
  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
   417
  {
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
   418
    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
   419
    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
   420
  }
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
   421
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
   422
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
   423
  /* 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
   424
53274
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   425
  private val inner_key_listener =
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   426
    JEdit_Lib.key_listener(
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   427
      key_pressed = (e: KeyEvent) =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   428
        {
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   429
          if (!e.isConsumed) {
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   430
            e.getKeyCode match {
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   431
              case KeyEvent.VK_TAB =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   432
                if (complete_selected()) e.consume
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   433
                hide_popup()
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   434
              case KeyEvent.VK_ESCAPE =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   435
                hide_popup()
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   436
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   437
              case KeyEvent.VK_UP | KeyEvent.VK_KP_UP if multi =>
53407
wenzelm
parents: 53405
diff changeset
   438
                move_items(-1)
wenzelm
parents: 53405
diff changeset
   439
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   440
              case KeyEvent.VK_DOWN | KeyEvent.VK_KP_DOWN if multi =>
53407
wenzelm
parents: 53405
diff changeset
   441
                move_items(1)
wenzelm
parents: 53405
diff changeset
   442
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   443
              case KeyEvent.VK_PAGE_UP if multi =>
53407
wenzelm
parents: 53405
diff changeset
   444
                move_pages(-1)
wenzelm
parents: 53405
diff changeset
   445
                e.consume
53405
ed2b48af04d9 interpret keys more movement only when needed;
wenzelm
parents: 53398
diff changeset
   446
              case KeyEvent.VK_PAGE_DOWN if multi =>
53407
wenzelm
parents: 53405
diff changeset
   447
                move_pages(1)
wenzelm
parents: 53405
diff changeset
   448
                e.consume
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   449
              case _ =>
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   450
                if (e.isActionKey || e.isAltDown || e.isMetaDown || e.isControlDown)
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   451
                  hide_popup()
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   452
            }
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   453
          }
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   454
          propagate(e)
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   455
        },
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   456
      key_typed = propagate _
53226
9cf8e2263ca7 more systematic JEdit_Lib.key_listener with optional KeyEventWorkaround;
wenzelm
parents: 53023
diff changeset
   457
    )
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
   458
53274
1760c01f1c78 maintain Completion_Popup.Text_Area as client property like Document_View;
wenzelm
parents: 53273
diff changeset
   459
  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
   460
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
   461
  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
   462
    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
   463
      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
   464
      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
   465
    }
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
   466
  })
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
   467
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
   468
  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
   469
    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
   470
  })
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
   471
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
   472
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
   473
  /* 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
   474
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
   475
  override def getFocusTraversalKeysEnabled = false
53297
64c31de7f21c border as for Pretty_Tooltip;
wenzelm
parents: 53296
diff changeset
   476
  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
   477
  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
   478
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
   479
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
   480
  /* 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
   481
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
   482
  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
   483
  {
53247
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   484
    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
   485
    val size =
53230
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   486
    {
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   487
      val geometry = JEdit_Lib.window_geometry(completion, completion)
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   488
      val bounds = Rendering.popup_bounds
53247
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   489
      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
   490
      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
   491
      new Dimension(w, h)
53230
6589ff56cc3c determine completion geometry like tooltip;
wenzelm
parents: 53229
diff changeset
   492
    }
53247
bd595338ca18 uniform use of isabelle.jEdit.Popup, based on generic screen location operations;
wenzelm
parents: 53246
diff changeset
   493
    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
   494
  }
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
   495
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
   496
  private def show_popup()
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
   497
  {
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
   498
    popup.show
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
   499
    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
   500
  }
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
   501
54377
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   502
  private val hide_popup_delay =
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   503
    Swing_Thread.delay_last(PIDE.options.seconds("jedit_completion_dismiss_delay")) {
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   504
      popup.hide
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   505
    }
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   506
53232
4a3762693452 tuned signature;
wenzelm
parents: 53231
diff changeset
   507
  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
   508
  {
54376
3eb84b6b0353 transfer focus before closing old component -- avoid intermediate focus switch to root component, which is actually visible e.g. on Windows;
wenzelm
parents: 53987
diff changeset
   509
    if (list_view.peer.isFocusOwner) refocus()
54377
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   510
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   511
    if (PIDE.options.seconds("jedit_completion_dismiss_delay").is_zero)
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   512
      popup.hide
750561986828 added jedit_completion_dismiss_delay for hide_popup, which helps to avoid loosing key events on old popup (no change of default behavior);
wenzelm
parents: 54376
diff changeset
   513
    else hide_popup_delay.invoke()
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
   514
  }
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
   515
}
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
   516