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1 /* Title: Tools/jEdit/src/plugin.scala |
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2 Author: Makarius |
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3 |
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4 Primitives for loading theory files, based on jEdit buffer content. |
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5 */ |
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6 |
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7 package isabelle.jedit |
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8 |
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9 |
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10 import isabelle._ |
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11 |
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12 import java.io.File |
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13 import javax.swing.text.Segment |
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14 |
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15 import org.gjt.sp.jedit.io.{VFS, FileVFS, VFSManager} |
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16 import org.gjt.sp.jedit.MiscUtilities |
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17 |
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18 |
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19 class JEdit_Thy_Load extends Thy_Load |
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20 { |
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21 /* loaded theories provided by prover */ |
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22 |
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23 private var loaded_theories: Set[String] = Set() |
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24 |
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25 override def register_thy(thy_name: String) |
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26 { |
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27 synchronized { loaded_theories += thy_name } |
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28 } |
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29 |
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30 override def is_loaded(thy_name: String): Boolean = |
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31 synchronized { loaded_theories.contains(thy_name) } |
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32 |
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33 |
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34 /* file-system operations */ |
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35 |
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36 override def append(master_dir: String, source_path: Path): String = |
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37 { |
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38 val path = source_path.expand |
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39 if (path.is_absolute) Isabelle_System.platform_path(path) |
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40 else { |
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41 val vfs = VFSManager.getVFSForPath(master_dir) |
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42 if (vfs.isInstanceOf[FileVFS]) |
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43 MiscUtilities.resolveSymlinks( |
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44 vfs.constructPath(master_dir, Isabelle_System.platform_path(path))) |
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45 else vfs.constructPath(master_dir, Isabelle_System.standard_path(path)) |
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46 } |
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47 } |
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48 |
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49 override def check_thy(node_name: String): Thy_Header = |
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50 { |
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51 Swing_Thread.now { |
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52 Isabelle.jedit_buffers().find(buffer => Isabelle.buffer_name(buffer) == node_name) match { |
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53 case Some(buffer) => |
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54 Isabelle.buffer_lock(buffer) { |
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55 val text = new Segment |
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56 buffer.getText(0, buffer.getLength, text) |
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57 Some(Thy_Header.read(text)) |
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58 } |
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59 case None => None |
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60 } |
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61 } getOrElse { |
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62 val file = new File(node_name) // FIXME load URL via jEdit VFS (!?) |
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63 if (!file.exists || !file.isFile) error("No such file: " + quote(file.toString)) |
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64 Thy_Header.read(file) |
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65 } |
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66 } |
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67 } |
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68 |