python/educational-core/student/src/com/jetbrains/edu/learning/StudyTypeHandlerDelegate.java

   1 package com.jetbrains.edu.learning;
   2
   3 import com.intellij.codeInsight.editorActions.TypedHandlerDelegate;
   4 import com.intellij.codeInsight.hint.HintManager;
   5 import com.intellij.openapi.editor.Editor;
   6 import com.intellij.openapi.fileTypes.FileType;
   7 import com.intellij.openapi.project.Project;
   8 import com.intellij.psi.PsiFile;
   9 import com.jetbrains.edu.learning.courseFormat.TaskFile;
  10 import org.jetbrains.annotations.NotNull;
  11
  12 public class StudyTypeHandlerDelegate extends TypedHandlerDelegate {
  13
  14   @Override
  15   public Result checkAutoPopup(char charTyped, Project project, Editor editor, PsiFile file) {
  16     return handleTyping(project, editor, file);
  17   }
  18
  19   @Override
  20   public Result beforeCharTyped(char c,
  21                                 Project project,
  22                                 Editor editor,
  23                                 PsiFile file,
  24                                 FileType fileType) {
  25     return handleTyping(project, editor, file);
  26   }
  27
  28   @NotNull
  29   private static Result handleTyping(Project project, Editor editor, PsiFile file) {
  30     if (!StudyUtils.isStudyProject(project)) {
  31       return Result.CONTINUE;
  32     }
  33     TaskFile taskFile = StudyUtils.getTaskFile(project, file.getVirtualFile());
  34     if (taskFile == null || !taskFile.getTask().hasSubtasks()) {
  35       return Result.CONTINUE;
  36     }
  37     int offset = editor.getCaretModel().getOffset();
  38     boolean insidePlaceholder = taskFile.getAnswerPlaceholder(offset) != null;
  39     if (!insidePlaceholder) {
  40       HintManager.getInstance().showInformationHint(editor, "Text outside of placeholders is not editable in this task");
  41     }
  42     return insidePlaceholder ? Result.CONTINUE : Result.STOP;
  43   }
  44 }