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Datei:
preview_panel.scala
Sprache: Unknown
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/* Title: Tools/VSCode/src/preview_panel.scala
Author: Makarius
HTML document preview.
*/
package isabelle.vscode
import isabelle._
import java.io.{File => JFile}
class Preview_Panel(resources: VSCode_Resources)
{
private val pending = Synchronized(Map.empty[JFile, Int])
def request(file: JFile, column: Int): Unit =
pending.change(map => map + (file -> column))
def flush(channel: Channel): Boolean =
{
pending.change_result(map =>
{
val map1 =
(map /: map.iterator)({ case (m, (file, column)) =>
resources.get_model(file) match {
case Some(model) =>
val snapshot = model.snapshot()
if (snapshot.is_outdated) m
else {
val html_context = Presentation.html_context()
val document =
Presentation.html_document(
resources, snapshot, html_context, Presentation.elements2)
channel.write(LSP.Preview_Response(file, column, document.title, document.content))
m - file
}
case None => m - file
}
})
(map1.nonEmpty, map1)
})
}
}
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