/* Title: Pure/Thy/presentation.scala
Author: Makarius
HTML presentation of PIDE document content.
*/
package isabelle
import scala.annotation.tailrec
import scala.collection.immutable.SortedMap
import scala.collection.mutable
object Presentation
{
/** HTML documents **/
/* HTML context */
val fonts_path = Path.explode("fonts")
sealed case class HTML_Document(title: String, content: String)
def html_context(fonts_url: String => String = HTML.fonts_url()): HTML_Context =
new HTML_Context(fonts_url)
final class HTML_Context private[Presentation](fonts_url: String => String)
{
private val theory_cache = Synchronized(Map.empty[String, Export_Theory.Theory])
def cache_theory(thy_name: String, make_thy: => Export_Theory.Theory): Export_Theory.Theory =
{
theory_cache.change_result(thys =>
{
thys.get(thy_name) match {
case Some(thy) => (thy, thys)
case None =>
val thy = make_thy
(thy, thys + (thy_name -> thy))
}
})
}
def init_fonts(dir: Path): Unit =
{
val fonts_dir = Isabelle_System.make_directory(dir + fonts_path)
for (entry <- Isabelle_Fonts.fonts(hidden = true))
Isabelle_System.copy_file(entry.path, fonts_dir)
}
def head(title: String, rest: XML.Body = Nil): XML.Tree =
HTML.div("head", HTML.chapter(title) :: rest)
def source(body: XML.Body): XML.Tree = HTML.pre("source", body)
def offset_ref(offset: Text.Range): String =
"offset/" + offset.start + ".." + offset.stop
def contents(heading: String, items: List[XML.Body], css_class: String = "contents")
: List[XML.Elem] =
{
if (items.isEmpty) Nil
else List(HTML.div(css_class, List(HTML.section(heading), HTML.itemize(items))))
}
def output_document(title: String, body: XML.Body): String =
HTML.output_document(
List(
HTML.style(HTML.fonts_css(fonts_url) + "\n\n" + File.read(HTML.isabelle_css)),
HTML.title(title)),
List(HTML.source(body)), css = "", structural = false)
def html_document(title: String, body: XML.Body): HTML_Document =
HTML_Document(title, output_document(title, body))
}
/* presentation elements */
sealed case class Elements(
html: Markup.Elements = Markup.Elements.empty,
entity: Markup.Elements = Markup.Elements.empty,
language: Markup.Elements = Markup.Elements.empty)
val elements1: Elements =
Elements(
html = Rendering.foreground_elements ++ Rendering.text_color_elements +
Markup.NUMERAL + Markup.COMMENT + Markup.ENTITY + Markup.LANGUAGE,
entity = Markup.Elements(Markup.THEORY, Markup.TYPE_NAME, Markup.CONSTANT, Markup.FACT,
Markup.CLASS, Markup.LOCALE, Markup.FREE))
val elements2: Elements =
Elements(
html = elements1.html ++ Rendering.markdown_elements,
language = Markup.Elements(Markup.Language.DOCUMENT))
/* formal entities */
type Entity = Export_Theory.Entity[Export_Theory.No_Content]
case class Entity_Context(node: Document.Node.Name)
{
val seen_ranges: mutable.Set[Symbol.Range] = mutable.Set.empty
}
/* HTML output */
private val div_elements =
Set(HTML.div.name, HTML.pre.name, HTML.par.name, HTML.list.name, HTML.enum.name,
HTML.descr.name)
def make_html(
name: Document.Node.Name,
elements: Elements,
entity_anchor: (Entity_Context, Symbol.Range, XML.Body) => Option[XML.Tree],
entity_link: (Entity_Context, Properties.T, XML.Body) => Option[XML.Tree],
xml: XML.Body): XML.Body =
{
val context = Entity_Context(name)
def html_div(html: XML.Body): Boolean =
html exists {
case XML.Elem(markup, body) => div_elements.contains(markup.name) || html_div(body)
case XML.Text(_) => false
}
def html_class(c: String, html: XML.Body): XML.Body =
if (c == "") html
else if (html_div(html)) List(HTML.div(c, html))
else List(HTML.span(c, html))
def html_body(xml_body: XML.Body, end_offset: Symbol.Offset): (XML.Body, Symbol.Offset) =
xml_body.foldRight((List.empty[XML.Tree], end_offset)) { case (tree, (res, end_offset1)) =>
val (res1, offset) = html_body_single(tree, end_offset1)
(res1 ++ res, offset)
}
@tailrec
def html_body_single(xml_tree: XML.Tree, end_offset: Symbol.Offset): (XML.Body, Symbol.Offset) =
xml_tree match {
case XML.Wrapped_Elem(markup, _, body) => html_body_single(XML.Elem(markup, body), end_offset)
case XML.Elem(Markup(Markup.ENTITY, props @ Markup.Kind(kind)), body) =>
val (body1, offset) = html_body(body, end_offset)
if (elements.entity(kind)) {
entity_link(context, props, body1) match {
case Some(link) => (List(link), offset)
case None => (body1, offset)
}
}
else (body1, offset)
case XML.Elem(Markup(Markup.LANGUAGE, Markup.Name(name)), body) =>
val (body1, offset) = html_body(body, end_offset)
(html_class(if (elements.language(name)) name else "", body1), offset)
case XML.Elem(Markup(Markup.MARKDOWN_PARAGRAPH, _), body) =>
val (body1, offset) = html_body(body, end_offset)
(List(HTML.par(body1)), offset)
case XML.Elem(Markup(Markup.MARKDOWN_ITEM, _), body) =>
val (body1, offset) = html_body(body, end_offset)
(List(HTML.item(body1)), offset)
case XML.Elem(Markup(Markup.Markdown_Bullet.name, _), text) =>
(Nil, end_offset - XML.symbol_length(text))
case XML.Elem(Markup.Markdown_List(kind), body) =>
val (body1, offset) = html_body(body, end_offset)
if (kind == Markup.ENUMERATE) (List(HTML.enum(body1)), offset)
else (List(HTML.list(body1)), offset)
case XML.Elem(markup, body) =>
val name = markup.name
val (body1, offset) = html_body(body, end_offset)
val html =
markup.properties match {
case Markup.Kind(kind) if kind == Markup.COMMAND || kind == Markup.KEYWORD =>
html_class(kind, body1)
case _ =>
body1
}
Rendering.foreground.get(name) orElse Rendering.text_color.get(name) match {
case Some(c) => (html_class(c.toString, html), offset)
case None => (html_class(name, html), offset)
}
case XML.Text(text) =>
val offset = end_offset - Symbol.length(text)
val body = HTML.text(Symbol.decode(text))
entity_anchor(context, Text.Range(offset, end_offset), body) match {
case Some(body1) => (List(body1), offset)
case None => (body, offset)
}
}
html_body(xml, XML.symbol_length(xml) + 1)._1
}
/* PIDE HTML document */
def html_document(
resources: Resources,
snapshot: Document.Snapshot,
html_context: HTML_Context,
elements: Elements,
plain_text: Boolean = false): HTML_Document =
{
require(!snapshot.is_outdated, "document snapshot outdated")
val name = snapshot.node_name
if (plain_text) {
val title = "File " + Symbol.cartouche_decoded(name.path.file_name)
val body = HTML.text(snapshot.node.source)
html_context.html_document(title, body)
}
else {
resources.html_document(snapshot) getOrElse {
val title =
if (name.is_theory) "Theory " + quote(name.theory_base_name)
else "File " + Symbol.cartouche_decoded(name.path.file_name)
val xml = snapshot.xml_markup(elements = elements.html)
val body = make_html(name, elements, (_, _, _) => None, (_, _, _) => None, xml)
html_context.html_document(title, body)
}
}
}
/** HTML presentation **/
/* presentation context */
object Context
{
val none: Context = new Context { def enabled: Boolean = false }
val standard: Context = new Context { def enabled: Boolean = true }
def dir(path: Path): Context =
new Context {
def enabled: Boolean = true
override def dir(store: Sessions.Store): Path = path
}
def make(s: String): Context =
if (s == ":") standard else dir(Path.explode(s))
}
abstract class Context private
{
def enabled: Boolean
def enabled(info: Sessions.Info): Boolean = enabled || info.browser_info
def dir(store: Sessions.Store): Path = store.presentation_dir
def dir(store: Sessions.Store, info: Sessions.Info): Path =
dir(store) + Path.explode(info.chapter_session)
}
/* maintain chapter index */
private val sessions_path = Path.basic(".sessions")
private def read_sessions(dir: Path): List[(String, String)] =
{
val path = dir + sessions_path
if (path.is_file) {
import XML.Decode._
list(pair(string, string))(Symbol.decode_yxml(File.read(path)))
}
else Nil
}
def update_chapter_index(
presentation_dir: Path, chapter: String, new_sessions: List[(String, String)]): Unit =
{
val dir = Isabelle_System.make_directory(presentation_dir + Path.basic(chapter))
val sessions0 =
try { read_sessions(dir) }
catch { case _: XML.Error => Nil }
val sessions = (SortedMap.empty[String, String] ++ sessions0 ++ new_sessions).toList
File.write(dir + sessions_path,
{
import XML.Encode._
YXML.string_of_body(list(pair(string, string))(sessions))
})
val title = "Isabelle/" + chapter + " sessions"
HTML.write_document(dir, "index.html",
List(HTML.title(title + Isabelle_System.isabelle_heading())),
HTML.chapter(title) ::
(if (sessions.isEmpty) Nil
else
List(HTML.div("sessions",
List(HTML.description(
sessions.map({ case (name, description) =>
val descr = Symbol.trim_blank_lines(description)
(List(HTML.link(name + "/index.html", HTML.text(name))),
if (descr == "") Nil
else HTML.break ::: List(HTML.pre(HTML.text(descr)))) })))))))
}
def update_global_index(presentation_dir: Path): Unit =
{
Isabelle_System.make_directory(presentation_dir)
Isabelle_System.copy_file(Path.explode("~~/lib/logo/isabelle.gif"),
presentation_dir + Path.explode("isabelle.gif"))
val title = "The " + XML.text(Isabelle_System.isabelle_name()) + " Library"
File.write(presentation_dir + Path.explode("index.html"),
HTML.header +
"""
<head>
""" + HTML.head_meta + """
<title>""" + title + """</title>
</head>
<body text="#000000" bgcolor="#FFFFFF" link="#0000FF" vlink="#000099" alink="#404040">
<center>
<table width="100%" border="0" cellspacing="10" cellpadding="0">
<tr>
<td width="20%" valign="middle" align="center"><a href="https://isabelle.in.tum.de/"><img align="bottom" src="isabelle.gif" width="100" height="86" alt="[Isabelle]" border="0" /></a></td>
<td width="80%" valign="middle" align="center">
<table width="90%" border="0" cellspacing="0" cellpadding="20">
<tr>
<td valign="middle" align="center" bgcolor="#AACCCC"><font face="Helvetica,Arial" size="+2">""" + title + """</font></td>
</tr>
</table>
</td>
</tr>
</table>
</center>
<hr />
""" + File.read(Path.explode("~~/lib/html/library_index_content.template")) +
"""
</body>
""" + HTML.footer)
}
/* present session */
val session_graph_path = Path.explode("session_graph.pdf")
val readme_path = Path.explode("README.html")
val files_path = Path.explode("files")
def html_name(name: Document.Node.Name): String = Path.explode(name.theory_base_name).html.implode
def html_path(path: Path): String = (files_path + path.squash.html).implode
def session_relative(deps: Sessions.Deps, session0: String, session1: String): Option[String] =
{
for {
info0 <- deps.sessions_structure.get(session0)
info1 <- deps.sessions_structure.get(session1)
} yield info0.relative_path(info1)
}
def node_relative(
deps: Sessions.Deps,
session0: String,
node_name: Document.Node.Name): Option[String] =
{
val session1 = deps(session0).theory_qualifier(node_name)
session_relative(deps, session0, session1)
}
def theory_link(deps: Sessions.Deps, session0: String,
name: Document.Node.Name, body: XML.Body, anchor: Option[String] = None): Option[XML.Tree] =
{
val session1 = deps(session0).theory_qualifier(name)
val info0 = deps.sessions_structure.get(session0)
val info1 = deps.sessions_structure.get(session1)
val fragment = if (anchor.isDefined) "#" + anchor.get else ""
if (info0.isDefined && info1.isDefined) {
Some(HTML.link(info0.get.relative_path(info1.get) + html_name(name) + fragment, body))
}
else None
}
def session_html(
resources: Resources,
session: String,
deps: Sessions.Deps,
db_context: Sessions.Database_Context,
progress: Progress = new Progress,
verbose: Boolean = false,
html_context: HTML_Context,
elements: Elements,
presentation: Context): Unit =
{
val hierarchy = deps.sessions_structure.hierarchy(session)
val info = deps.sessions_structure(session)
val options = info.options
val base = deps(session)
val session_dir = presentation.dir(db_context.store, info)
html_context.init_fonts(session_dir)
Bytes.write(session_dir + session_graph_path,
graphview.Graph_File.make_pdf(options, base.session_graph_display))
val documents =
for {
doc <- info.document_variants
document <- db_context.input_database(session)(Document_Build.read_document(_, _, doc.name))
} yield {
if (verbose) progress.echo("Presenting document " + session + "/" + doc.name)
Bytes.write(session_dir + doc.path.pdf, document.pdf)
doc
}
val view_links =
{
val deps_link =
HTML.link(session_graph_path, HTML.text("theory dependencies"))
val readme_links =
if ((info.dir + readme_path).is_file) {
Isabelle_System.copy_file(info.dir + readme_path, session_dir + readme_path)
List(HTML.link(readme_path, HTML.text("README")))
}
else Nil
val document_links =
documents.map(doc => HTML.link(doc.path.pdf, HTML.text(doc.name)))
Library.separate(HTML.break ::: HTML.nl,
(deps_link :: readme_links ::: document_links).
map(link => HTML.text("View ") ::: List(link))).flatten
}
val theory_by_name: Map[String, Export_Theory.Theory] =
(for ((_, entry) <- base.known_theories.iterator) yield {
val thy_name = entry.name.theory
val theory =
if (thy_name == Thy_Header.PURE) Export_Theory.no_theory
else {
html_context.cache_theory(thy_name,
{
val provider =
Export.Provider.database_context(db_context, hierarchy, thy_name)
Export_Theory.read_theory(provider, session, thy_name)
})
}
thy_name -> theory
}).toMap
val theories: List[XML.Body] =
{
var seen_files = List.empty[(Path, String, Document.Node.Name)]
def node_file(node: Document.Node.Name): String =
if (node.node.endsWith(".thy")) html_name(node) else html_path(Path.explode(node.node))
def entity_anchor(
context: Entity_Context, range: Symbol.Range, body: XML.Body): Option[XML.Elem] =
{
body match {
case List(XML.Elem(Markup("span", List("id" -> _)), _)) => None
case _ =>
Some {
val entities =
theory_by_name.get(context.node.theory).flatMap(_.entity_by_range.get(range))
.getOrElse(Nil)
val body1 =
if (context.seen_ranges.contains(range)) {
HTML.entity_def(HTML.span(HTML.id(html_context.offset_ref(range)), body))
}
else HTML.span(body)
entities.map(_.kname).foldLeft(body1) {
case (elem, id) => HTML.entity_def(HTML.span(HTML.id(id), List(elem)))
}
}
}
}
def entity_ref(thy_name: String, kind: String, name: String): Option[String] =
for {
thy <- theory_by_name.get(thy_name)
entity <- thy.entity_by_kname.get(Export_Theory.export_kind_name(kind, name))
} yield entity.kname
def offset_ref(context: Entity_Context, thy_name: String, props: Properties.T): Option[String] =
{
if (thy_name == context.node.theory) {
for {
offset <- Position.Def_Offset.unapply(props)
end_offset <- Position.Def_End_Offset.unapply(props)
range = Text.Range(offset, end_offset)
} yield {
context.seen_ranges += range
html_context.offset_ref(range)
}
}
else None
}
def entity_link(
context: Entity_Context, props: Properties.T, body: XML.Body): Option[XML.Elem] =
{
(props, props, props, props, props) match {
case (Markup.Kind(Markup.THEORY), Markup.Name(theory), Position.Def_File(thy_file), _, _) =>
val node_name = resources.file_node(Path.explode(thy_file), theory = theory)
node_relative(deps, session, node_name).map(html_dir =>
HTML.link(html_dir + html_name(node_name), body))
case (Markup.Ref(_), Position.Def_File(thy_file), Position.Def_Theory(def_theory),
Markup.Kind(kind), Markup.Name(name)) =>
val thy_name = if (def_theory.nonEmpty) def_theory else context.node.theory
val node_name = resources.file_node(Path.explode(thy_file), theory = thy_name)
for {
html_dir <- node_relative(deps, session, node_name)
html_file = node_file(node_name)
html_ref <- entity_ref(thy_name, kind, name).orElse(offset_ref(context, thy_name, props))
} yield {
HTML.entity_ref(HTML.link(html_dir + html_file + "#" + html_ref, body))
}
case _ => None
}
}
sealed case class Theory(
name: Document.Node.Name,
command: Command,
files_html: List[(Path, XML.Tree)],
html: XML.Tree)
def read_theory(name: Document.Node.Name): Option[Theory] =
{
progress.expose_interrupt()
if (verbose) progress.echo("Presenting theory " + name)
for (command <- Build_Job.read_theory(db_context, resources, session, name.theory))
yield {
val snapshot = Document.State.init.snippet(command)
val files_html =
for {
(src_path, xml) <- snapshot.xml_markup_blobs(elements = elements.html)
if xml.nonEmpty
}
yield {
progress.expose_interrupt()
if (verbose) progress.echo("Presenting file " + src_path)
(src_path, html_context.source(
make_html(name, elements, entity_anchor, entity_link, xml)))
}
val html =
html_context.source(
make_html(name, elements, entity_anchor, entity_link,
snapshot.xml_markup(elements = elements.html)))
Theory(name, command, files_html, html)
}
}
for (thy <- Par_List.map(read_theory, base.session_theories).flatten)
yield {
val files =
for { (src_path, file_html) <- thy.files_html }
yield {
val file_name = html_path(src_path)
seen_files.find(p => p._1 == src_path || p._2 == file_name) match {
case None => seen_files ::= (src_path, file_name, thy.name)
case Some((_, _, thy_name1)) =>
error("Incoherent use of file name " + src_path + " as " + quote(file_name) +
" in theory " + thy_name1 + " vs. " + thy.name)
}
val file_path = session_dir + Path.explode(file_name)
html_context.init_fonts(file_path.dir)
val file_title = "File " + Symbol.cartouche_decoded(src_path.implode_short)
HTML.write_document(file_path.dir, file_path.file_name,
List(HTML.title(file_title)), List(html_context.head(file_title), file_html))
List(HTML.link(file_name, HTML.text(file_title)))
}
val thy_title = "Theory " + thy.name.theory_base_name
HTML.write_document(session_dir, html_name(thy.name),
List(HTML.title(thy_title)), List(html_context.head(thy_title), thy.html))
List(HTML.link(html_name(thy.name),
HTML.text(thy.name.theory_base_name) :::
(if (files.isEmpty) Nil else List(HTML.itemize(files)))))
}
}
val title = "Session " + session
HTML.write_document(session_dir, "index.html",
List(HTML.title(title + Isabelle_System.isabelle_heading())),
html_context.head(title, List(HTML.par(view_links))) ::
html_context.contents("Theories", theories))
}
}