diff --git a/src/Pure/General/http.scala b/src/Pure/General/http.scala --- a/src/Pure/General/http.scala +++ b/src/Pure/General/http.scala @@ -1,305 +1,305 @@ /* Title: Pure/General/http.scala Author: Makarius HTTP client and server support. */ package isabelle import java.io.{File => JFile} import java.net.{InetSocketAddress, URI, URL, URLConnection, HttpURLConnection} import com.sun.net.httpserver.{HttpExchange, HttpHandler, HttpServer} object HTTP { /** content **/ val mime_type_bytes: String = "application/octet-stream" val mime_type_text: String = "text/plain; charset=utf-8" val mime_type_html: String = "text/html; charset=utf-8" val default_mime_type: String = mime_type_bytes val default_encoding: String = UTF8.charset_name sealed case class Content( bytes: Bytes, file_name: String = "", mime_type: String = default_mime_type, encoding: String = default_encoding, elapsed_time: Time = Time.zero) { def text: String = new String(bytes.array, encoding) } def read_content(file: JFile): Content = { val bytes = Bytes.read(file) val file_name = file.getName val mime_type = Option(URLConnection.guessContentTypeFromName(file_name)).getOrElse(default_mime_type) Content(bytes, file_name = file_name, mime_type = mime_type) } def read_content(path: Path): Content = read_content(path.file) /** client **/ val NEWLINE: String = "\r\n" object Client { val default_timeout: Time = Time.seconds(180) def open_connection(url: URL, timeout: Time = default_timeout, user_agent: String = ""): HttpURLConnection = { url.openConnection match { case connection: HttpURLConnection => if (0 < timeout.ms && timeout.ms <= Integer.MAX_VALUE) { val ms = timeout.ms.toInt connection.setConnectTimeout(ms) connection.setReadTimeout(ms) } proper_string(user_agent).foreach(s => connection.setRequestProperty("User-Agent", s)) connection case _ => error("Bad URL (not HTTP): " + quote(url.toString)) } } def get_content(connection: HttpURLConnection): Content = { val Charset = """.*\bcharset="?([\S^"]+)"?.*""".r val start = Time.now() using(connection.getInputStream)(stream => { val bytes = Bytes.read_stream(stream, hint = connection.getContentLength) val stop = Time.now() val file_name = Url.file_name(connection.getURL) val mime_type = Option(connection.getContentType).getOrElse(default_mime_type) val encoding = (connection.getContentEncoding, mime_type) match { case (enc, _) if enc != null => enc case (_, Charset(enc)) => enc case _ => default_encoding } Content(bytes, file_name = file_name, mime_type = mime_type, encoding = encoding, elapsed_time = stop - start) }) } def get(url: URL, timeout: Time = default_timeout, user_agent: String = ""): Content = get_content(open_connection(url, timeout = timeout, user_agent = user_agent)) def post(url: URL, parameters: List[(String, Any)], timeout: Time = default_timeout, user_agent: String = ""): Content = { val connection = open_connection(url, timeout = timeout, user_agent = user_agent) connection.setRequestMethod("POST") connection.setDoOutput(true) val boundary = UUID.random_string() connection.setRequestProperty( "Content-Type", "multipart/form-data; boundary=" + quote(boundary)) using(connection.getOutputStream)(out => { def output(s: String): Unit = out.write(UTF8.bytes(s)) def output_newline(n: Int = 1): Unit = (1 to n).foreach(_ => output(NEWLINE)) def output_boundary(end: Boolean = false): Unit = output("--" + boundary + (if (end) "--" else "") + NEWLINE) def output_name(name: String): Unit = output("Content-Disposition: form-data; name=" + quote(name)) def output_value(value: Any): Unit = { output_newline(2) output(value.toString) } def output_content(content: Content): Unit = { proper_string(content.file_name).foreach(s => output("; filename=" + quote(s))) output_newline() proper_string(content.mime_type).foreach(s => output("Content-Type: " + s)) output_newline(2) content.bytes.write_stream(out) } output_newline(2) for { (name, value) <- parameters } { output_boundary() output_name(name) value match { case content: Content => output_content(content) case file: JFile => output_content(read_content(file)) case path: Path => output_content(read_content(path)) case _ => output_value(value) } output_newline() } output_boundary(end = true) out.flush() }) get_content(connection) } } /** server **/ /* response */ object Response { def apply( bytes: Bytes = Bytes.empty, content_type: String = mime_type_bytes): Response = new Response(bytes, content_type) val empty: Response = apply() def text(s: String): Response = apply(Bytes(s), mime_type_text) def html(s: String): Response = apply(Bytes(s), mime_type_html) } class Response private[HTTP](val bytes: Bytes, val content_type: String) { override def toString: String = bytes.toString } /* exchange */ class Exchange private[HTTP](val http_exchange: HttpExchange) { def request_method: String = http_exchange.getRequestMethod def request_uri: URI = http_exchange.getRequestURI def read_request(): Bytes = using(http_exchange.getRequestBody)(Bytes.read_stream(_)) def write_response(code: Int, response: Response): Unit = { http_exchange.getResponseHeaders.set("Content-Type", response.content_type) http_exchange.sendResponseHeaders(code, response.bytes.length.toLong) using(http_exchange.getResponseBody)(response.bytes.write_stream) } } /* handler for request method */ sealed case class Arg(method: String, uri: URI, request: Bytes) { def decode_properties: Properties.T = space_explode('&', request.text).map(s => space_explode('=', s) match { case List(a, b) => Url.decode(a) -> Url.decode(b) case _ => error("Malformed key-value pair in HTTP/POST: " + quote(s)) }) } object Handler { def apply(root: String, body: Exchange => Unit): Handler = new Handler(root, (x: HttpExchange) => body(new Exchange(x))) def method(name: String, root: String, body: Arg => Option[Response]): Handler = apply(root, http => { val request = http.read_request() if (http.request_method == name) { val arg = Arg(name, http.request_uri, request) Exn.capture(body(arg)) match { case Exn.Res(Some(response)) => http.write_response(200, response) case Exn.Res(None) => http.write_response(404, Response.empty) case Exn.Exn(ERROR(msg)) => http.write_response(500, Response.text(Output.error_message_text(msg))) case Exn.Exn(exn) => throw exn } } else http.write_response(400, Response.empty) }) def get(root: String, body: Arg => Option[Response]): Handler = method("GET", root, body) def post(root: String, body: Arg => Option[Response]): Handler = method("POST", root, body) } class Handler private(val root: String, val handler: HttpHandler) { override def toString: String = root } /* server */ class Server private[HTTP](val http_server: HttpServer) { def += (handler: Handler): Unit = http_server.createContext(handler.root, handler.handler) def -= (handler: Handler): Unit = http_server.removeContext(handler.root) def start(): Unit = http_server.start() def stop(): Unit = http_server.stop(0) def address: InetSocketAddress = http_server.getAddress def url: String = "http://" + address.getHostName + ":" + address.getPort override def toString: String = url } def server(handlers: List[Handler] = isabelle_resources): Server = { val http_server = HttpServer.create(new InetSocketAddress(isabelle.Server.localhost, 0), 0) http_server.setExecutor(null) val server = new Server(http_server) for (handler <- handlers) server += handler server } /** Isabelle resources **/ lazy val isabelle_resources: List[Handler] = - List(welcome, fonts()) + List(welcome(), fonts()) /* welcome */ - val welcome: Handler = - Handler.get("/", arg => - if (arg.uri.toString == "/") { + def welcome(root: String = "/"): Handler = + Handler.get(root, arg => + if (arg.uri.toString == root) { val id = Isabelle_System.isabelle_id() Some(Response.text("Welcome to Isabelle/" + id + ": " + Distribution.version)) } else None) /* fonts */ private lazy val html_fonts: List[Isabelle_Fonts.Entry] = Isabelle_Fonts.fonts(hidden = true) def fonts(root: String = "/fonts"): Handler = Handler.get(root, arg => { val uri_name = arg.uri.toString if (uri_name == root) { Some(Response.text(cat_lines(html_fonts.map(entry => entry.path.file_name)))) } else { html_fonts.collectFirst( { case entry if uri_name == root + "/" + entry.path.file_name => Response(entry.bytes) }) } }) } diff --git a/src/Tools/jEdit/src/document_model.scala b/src/Tools/jEdit/src/document_model.scala --- a/src/Tools/jEdit/src/document_model.scala +++ b/src/Tools/jEdit/src/document_model.scala @@ -1,700 +1,700 @@ /* Title: Tools/jEdit/src/document_model.scala Author: Fabian Immler, TU Munich Author: Makarius Document model connected to jEdit buffer or external file: content of theory node or auxiliary file (blob). */ package isabelle.jedit import isabelle._ import java.io.{File => JFile} import scala.collection.mutable import scala.annotation.tailrec import org.gjt.sp.jedit.View import org.gjt.sp.jedit.Buffer import org.gjt.sp.jedit.buffer.{BufferAdapter, BufferListener, JEditBuffer} object Document_Model { /* document models */ sealed case class State( models: Map[Document.Node.Name, Document_Model] = Map.empty, buffer_models: Map[JEditBuffer, Buffer_Model] = Map.empty, overlays: Document.Overlays = Document.Overlays.empty) { def file_models_iterator: Iterator[(Document.Node.Name, File_Model)] = for { (node_name, model) <- models.iterator if model.isInstanceOf[File_Model] } yield (node_name, model.asInstanceOf[File_Model]) def document_blobs: Document.Blobs = Document.Blobs( (for { (node_name, model) <- models.iterator blob <- model.get_blob } yield (node_name -> blob)).toMap) def open_buffer(session: Session, node_name: Document.Node.Name, buffer: Buffer) : (Buffer_Model, State) = { val old_model = models.get(node_name) match { case Some(file_model: File_Model) => Some(file_model) case Some(buffer_model: Buffer_Model) => Some(buffer_model.exit()) case _ => None } val buffer_model = Buffer_Model(session, node_name, buffer).init(old_model) (buffer_model, copy(models = models + (node_name -> buffer_model), buffer_models = buffer_models + (buffer -> buffer_model))) } def close_buffer(buffer: JEditBuffer): State = { buffer_models.get(buffer) match { case None => this case Some(buffer_model) => val file_model = buffer_model.exit() copy(models = models + (file_model.node_name -> file_model), buffer_models = buffer_models - buffer) } } def provide_file(session: Session, node_name: Document.Node.Name, text: String): State = if (models.isDefinedAt(node_name)) this else { val edit = Text.Edit.insert(0, text) val model = File_Model.init(session, node_name, text, pending_edits = List(edit)) copy(models = models + (node_name -> model)) } } private val state = Synchronized(State()) // owned by GUI thread def get_models(): Map[Document.Node.Name, Document_Model] = state.value.models def get(name: Document.Node.Name): Option[Document_Model] = get_models().get(name) def get(buffer: JEditBuffer): Option[Buffer_Model] = state.value.buffer_models.get(buffer) def document_blobs(): Document.Blobs = state.value.document_blobs /* bibtex */ def bibtex_entries_iterator(): Iterator[Text.Info[(String, Document_Model)]] = Bibtex.entries_iterator(state.value.models) def bibtex_completion(history: Completion.History, rendering: Rendering, caret: Text.Offset) : Option[Completion.Result] = Bibtex.completion(history, rendering, caret, state.value.models) /* overlays */ def node_overlays(name: Document.Node.Name): Document.Node.Overlays = state.value.overlays(name) def insert_overlay(command: Command, fn: String, args: List[String]): Unit = state.change(st => st.copy(overlays = st.overlays.insert(command, fn, args))) def remove_overlay(command: Command, fn: String, args: List[String]): Unit = state.change(st => st.copy(overlays = st.overlays.remove(command, fn, args))) /* sync external files */ def sync_files(changed_files: Set[JFile]): Boolean = { state.change_result(st => { val changed_models = (for { (node_name, model) <- st.file_models_iterator file <- model.file if changed_files(file) text <- PIDE.resources.read_file_content(node_name) if model.content.text != text } yield { val content = Document_Model.File_Content(text) val edits = Text.Edit.replace(0, model.content.text, text) (node_name, model.copy(content = content, pending_edits = model.pending_edits ::: edits)) }).toList if (changed_models.isEmpty) (false, st) else (true, st.copy(models = changed_models.foldLeft(st.models)(_ + _))) }) } /* syntax */ def syntax_changed(names: List[Document.Node.Name]): Unit = { GUI_Thread.require {} val models = state.value.models for (name <- names.iterator; model <- models.get(name)) { model match { case buffer_model: Buffer_Model => buffer_model.syntax_changed() case _ => } } } /* init and exit */ def init(session: Session, node_name: Document.Node.Name, buffer: Buffer): Buffer_Model = { GUI_Thread.require {} state.change_result(st => st.buffer_models.get(buffer) match { case Some(buffer_model) if buffer_model.node_name == node_name => buffer_model.init_token_marker() (buffer_model, st) case _ => val res = st.close_buffer(buffer).open_buffer(session, node_name, buffer) buffer.propertiesChanged() res }) } def exit(buffer: Buffer): Unit = { GUI_Thread.require {} state.change(st => if (st.buffer_models.isDefinedAt(buffer)) { val res = st.close_buffer(buffer) buffer.propertiesChanged() res } else st) } def provide_files(session: Session, files: List[(Document.Node.Name, String)]): Unit = { GUI_Thread.require {} state.change(st => files.foldLeft(st) { case (st1, (node_name, text)) => st1.provide_file(session, node_name, text) }) } /* required nodes */ def required_nodes(): Set[Document.Node.Name] = (for { (node_name, model) <- state.value.models.iterator if model.node_required } yield node_name).toSet def node_required( name: Document.Node.Name, toggle: Boolean = false, set: Boolean = false): Unit = { GUI_Thread.require {} val changed = state.change_result(st => st.models.get(name) match { case None => (false, st) case Some(model) => val required = if (toggle) !model.node_required else set model match { case model1: File_Model if required != model1.node_required => (true, st.copy(models = st.models + (name -> model1.copy(node_required = required)))) case model1: Buffer_Model if required != model1.node_required => model1.set_node_required(required); (true, st) case _ => (false, st) } }) if (changed) { PIDE.plugin.options_changed() PIDE.editor.flush() } } def view_node_required(view: View, toggle: Boolean = false, set: Boolean = false): Unit = Document_Model.get(view.getBuffer).foreach(model => node_required(model.node_name, toggle = toggle, set = set)) /* flushed edits */ def flush_edits(hidden: Boolean, purge: Boolean): (Document.Blobs, List[Document.Edit_Text]) = { GUI_Thread.require {} state.change_result(st => { val doc_blobs = st.document_blobs val buffer_edits = (for { (_, model) <- st.buffer_models.iterator edit <- model.flush_edits(doc_blobs, hidden).iterator } yield edit).toList val file_edits = (for { (node_name, model) <- st.file_models_iterator (edits, model1) <- model.flush_edits(doc_blobs, hidden) } yield (edits, node_name -> model1)).toList val model_edits = buffer_edits ::: file_edits.flatMap(_._1) val purge_edits = if (purge) { val purged = (for ((node_name, model) <- st.file_models_iterator) yield (node_name -> model.purge_edits(doc_blobs))).toList val imports = { val open_nodes = (for ((_, model) <- st.buffer_models.iterator) yield model.node_name).toList val touched_nodes = model_edits.map(_._1) val pending_nodes = for ((node_name, None) <- purged) yield node_name (open_nodes ::: touched_nodes ::: pending_nodes).map((_, Position.none)) } val retain = PIDE.resources.dependencies(imports).theories.toSet for ((node_name, Some(edits)) <- purged if !retain(node_name); edit <- edits) yield edit } else Nil val st1 = st.copy(models = st.models ++ file_edits.map(_._2) -- purge_edits.map(_._1)) PIDE.plugin.file_watcher.purge( (for { (_, model) <- st1.file_models_iterator file <- model.file } yield file.getParentFile).toSet) ((doc_blobs, model_edits ::: purge_edits), st1) }) } /* file content */ sealed case class File_Content(text: String) { lazy val bytes: Bytes = Bytes(Symbol.encode(text)) lazy val chunk: Symbol.Text_Chunk = Symbol.Text_Chunk(text) lazy val bibtex_entries: List[Text.Info[String]] = try { Bibtex.entries(text) } catch { case ERROR(_) => Nil } } /* HTTP preview */ private val plain_text_prefix = "plain_text=" def open_preview(view: View, plain_text: Boolean): Unit = { Document_Model.get(view.getBuffer) match { case Some(model) => val name = model.node_name val url = PIDE.plugin.http_server.url + PIDE.plugin.http_root + "/preview?" + (if (plain_text) plain_text_prefix else "") + Url.encode(name.node) PIDE.editor.hyperlink_url(url).follow(view) case _ => } } def http_handlers(http_root: String): List[HTTP.Handler] = { val fonts_root = http_root + "/fonts" val preview_root = http_root + "/preview" val html = HTTP.Handler.get(preview_root, arg => for { query <- Library.try_unprefix(preview_root + "?", arg.uri.toString).map(Url.decode) name = Library.perhaps_unprefix(plain_text_prefix, query) model <- get(PIDE.resources.node_name(name)) } yield { val snapshot = model.await_stable_snapshot() val html_context = Presentation.html_context(fonts_url = HTML.fonts_dir(fonts_root)) val document = Presentation.html_document( PIDE.resources, snapshot, html_context, Presentation.elements2, plain_text = query.startsWith(plain_text_prefix)) HTTP.Response.html(document.content) }) - List(HTTP.fonts(fonts_root), html) + List(HTTP.welcome(http_root), HTTP.fonts(fonts_root), html) } } sealed abstract class Document_Model extends Document.Model { /* perspective */ def document_view_ranges(snapshot: Document.Snapshot): List[Text.Range] = Nil def node_perspective( doc_blobs: Document.Blobs, hidden: Boolean): (Boolean, Document.Node.Perspective_Text) = { GUI_Thread.require {} if (Isabelle.continuous_checking && is_theory) { val snapshot = this.snapshot() val reparse = snapshot.node.load_commands_changed(doc_blobs) val perspective = if (hidden) Text.Perspective.empty else { val view_ranges = document_view_ranges(snapshot) val load_ranges = snapshot.commands_loading_ranges(PIDE.editor.visible_node) Text.Perspective(view_ranges ::: load_ranges) } val overlays = PIDE.editor.node_overlays(node_name) (reparse, Document.Node.Perspective(node_required, perspective, overlays)) } else (false, Document.Node.no_perspective_text) } /* snapshot */ @tailrec final def await_stable_snapshot(): Document.Snapshot = { val snapshot = this.snapshot() if (snapshot.is_outdated) { PIDE.options.seconds("editor_output_delay").sleep await_stable_snapshot() } else snapshot } } object File_Model { def empty(session: Session): File_Model = File_Model(session, Document.Node.Name.empty, None, Document_Model.File_Content(""), false, Document.Node.no_perspective_text, Nil) def init(session: Session, node_name: Document.Node.Name, text: String, node_required: Boolean = false, last_perspective: Document.Node.Perspective_Text = Document.Node.no_perspective_text, pending_edits: List[Text.Edit] = Nil): File_Model = { val file = JEdit_Lib.check_file(node_name.node) file.foreach(PIDE.plugin.file_watcher.register_parent(_)) val content = Document_Model.File_Content(text) val node_required1 = node_required || File_Format.registry.is_theory(node_name) File_Model(session, node_name, file, content, node_required1, last_perspective, pending_edits) } } case class File_Model( session: Session, node_name: Document.Node.Name, file: Option[JFile], content: Document_Model.File_Content, node_required: Boolean, last_perspective: Document.Node.Perspective_Text, pending_edits: List[Text.Edit]) extends Document_Model { /* text */ def get_text(range: Text.Range): Option[String] = range.try_substring(content.text) /* header */ def node_header: Document.Node.Header = PIDE.resources.special_header(node_name) getOrElse PIDE.resources.check_thy(node_name, Scan.char_reader(content.text), strict = false) /* content */ def node_position(offset: Text.Offset): Line.Node_Position = Line.Node_Position(node_name.node, Line.Position.zero.advance(content.text.substring(0, offset))) def get_blob: Option[Document.Blob] = if (is_theory) None else Some(Document.Blob(content.bytes, content.text, content.chunk, pending_edits.nonEmpty)) def bibtex_entries: List[Text.Info[String]] = if (Bibtex.is_bibtex(node_name.node)) content.bibtex_entries else Nil /* edits */ def update_text(text: String): Option[File_Model] = Text.Edit.replace(0, content.text, text) match { case Nil => None case edits => val content1 = Document_Model.File_Content(text) val pending_edits1 = pending_edits ::: edits Some(copy(content = content1, pending_edits = pending_edits1)) } def flush_edits(doc_blobs: Document.Blobs, hidden: Boolean) : Option[(List[Document.Edit_Text], File_Model)] = { val (reparse, perspective) = node_perspective(doc_blobs, hidden) if (reparse || pending_edits.nonEmpty || last_perspective != perspective) { val edits = node_edits(node_header, pending_edits, perspective) Some((edits, copy(last_perspective = perspective, pending_edits = Nil))) } else None } def purge_edits(doc_blobs: Document.Blobs): Option[List[Document.Edit_Text]] = if (pending_edits.nonEmpty || !File_Format.registry.is_theory(node_name) && (node_required || !Document.Node.is_no_perspective_text(last_perspective))) None else { val text_edits = List(Text.Edit.remove(0, content.text)) Some(node_edits(Document.Node.no_header, text_edits, Document.Node.no_perspective_text)) } /* snapshot */ def is_stable: Boolean = pending_edits.isEmpty def snapshot(): Document.Snapshot = session.snapshot(node_name, pending_edits) } case class Buffer_Model(session: Session, node_name: Document.Node.Name, buffer: Buffer) extends Document_Model { /* text */ def get_text(range: Text.Range): Option[String] = JEdit_Lib.get_text(buffer, range) /* header */ def node_header(): Document.Node.Header = { GUI_Thread.require {} PIDE.resources.special_header(node_name) getOrElse JEdit_Lib.buffer_lock(buffer) { PIDE.resources.check_thy(node_name, JEdit_Lib.buffer_reader(buffer), strict = false) } } /* perspective */ // owned by GUI thread private var _node_required = false def node_required: Boolean = _node_required def set_node_required(b: Boolean): Unit = GUI_Thread.require { _node_required = b } def document_view_iterator: Iterator[Document_View] = for { text_area <- JEdit_Lib.jedit_text_areas(buffer) doc_view <- Document_View.get(text_area) } yield doc_view override def document_view_ranges(snapshot: Document.Snapshot): List[Text.Range] = { GUI_Thread.require {} (for { doc_view <- document_view_iterator range <- doc_view.perspective(snapshot).ranges.iterator } yield range).toList } /* blob */ // owned by GUI thread private var _blob: Option[(Bytes, String, Symbol.Text_Chunk)] = None private def reset_blob(): Unit = GUI_Thread.require { _blob = None } def get_blob: Option[Document.Blob] = GUI_Thread.require { if (is_theory) None else { val (bytes, text, chunk) = _blob match { case Some(x) => x case None => val bytes = PIDE.resources.make_file_content(buffer) val text = buffer.getText(0, buffer.getLength) val chunk = Symbol.Text_Chunk(text) val x = (bytes, text, chunk) _blob = Some(x) x } val changed = pending_edits.nonEmpty Some(Document.Blob(bytes, text, chunk, changed)) } } /* bibtex entries */ // owned by GUI thread private var _bibtex_entries: Option[List[Text.Info[String]]] = None private def reset_bibtex_entries(): Unit = GUI_Thread.require { _bibtex_entries = None } def bibtex_entries: List[Text.Info[String]] = GUI_Thread.require { if (Bibtex.is_bibtex(node_name.node)) { _bibtex_entries match { case Some(entries) => entries case None => val text = JEdit_Lib.buffer_text(buffer) val entries = try { Bibtex.entries(text) } catch { case ERROR(msg) => Output.warning(msg); Nil } _bibtex_entries = Some(entries) entries } } else Nil } /* pending edits */ private object pending_edits { private val pending = new mutable.ListBuffer[Text.Edit] private var last_perspective = Document.Node.no_perspective_text def nonEmpty: Boolean = synchronized { pending.nonEmpty } def get_edits: List[Text.Edit] = synchronized { pending.toList } def get_last_perspective: Document.Node.Perspective_Text = synchronized { last_perspective } def set_last_perspective(perspective: Document.Node.Perspective_Text): Unit = synchronized { last_perspective = perspective } def flush_edits(doc_blobs: Document.Blobs, hidden: Boolean): List[Document.Edit_Text] = synchronized { GUI_Thread.require {} val edits = get_edits val (reparse, perspective) = node_perspective(doc_blobs, hidden) if (reparse || edits.nonEmpty || last_perspective != perspective) { pending.clear() last_perspective = perspective node_edits(node_header(), edits, perspective) } else Nil } def edit(edits: List[Text.Edit]): Unit = synchronized { GUI_Thread.require {} reset_blob() reset_bibtex_entries() for (doc_view <- document_view_iterator) doc_view.rich_text_area.active_reset() pending ++= edits PIDE.editor.invoke() } } def is_stable: Boolean = !pending_edits.nonEmpty def snapshot(): Document.Snapshot = session.snapshot(node_name, pending_edits.get_edits) def flush_edits(doc_blobs: Document.Blobs, hidden: Boolean): List[Document.Edit_Text] = pending_edits.flush_edits(doc_blobs, hidden) /* buffer listener */ private val buffer_listener: BufferListener = new BufferAdapter { override def contentInserted(buffer: JEditBuffer, start_line: Int, offset: Int, num_lines: Int, length: Int): Unit = { pending_edits.edit(List(Text.Edit.insert(offset, buffer.getText(offset, length)))) } override def preContentRemoved(buffer: JEditBuffer, start_line: Int, offset: Int, num_lines: Int, removed_length: Int): Unit = { pending_edits.edit(List(Text.Edit.remove(offset, buffer.getText(offset, removed_length)))) } } /* syntax */ def syntax_changed(): Unit = { JEdit_Lib.buffer_line_manager(buffer).setFirstInvalidLineContext(0) for (text_area <- JEdit_Lib.jedit_text_areas(buffer)) Untyped.method(Class.forName("org.gjt.sp.jedit.textarea.TextArea"), "foldStructureChanged"). invoke(text_area) buffer.invalidateCachedFoldLevels() } def init_token_marker(): Unit = { Isabelle.buffer_token_marker(buffer) match { case Some(marker) if marker != buffer.getTokenMarker => buffer.setTokenMarker(marker) syntax_changed() case _ => } } /* init */ def init(old_model: Option[File_Model]): Buffer_Model = { GUI_Thread.require {} old_model match { case None => pending_edits.edit(List(Text.Edit.insert(0, JEdit_Lib.buffer_text(buffer)))) case Some(file_model) => set_node_required(file_model.node_required) pending_edits.set_last_perspective(file_model.last_perspective) pending_edits.edit( file_model.pending_edits ::: Text.Edit.replace(0, file_model.content.text, JEdit_Lib.buffer_text(buffer))) } buffer.addBufferListener(buffer_listener) init_token_marker() this } /* exit */ def exit(): File_Model = { GUI_Thread.require {} buffer.removeBufferListener(buffer_listener) init_token_marker() File_Model.init(session, node_name, JEdit_Lib.buffer_text(buffer), node_required, pending_edits.get_last_perspective, pending_edits.get_edits) } }