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8134309: load call argument completion could be done with file chooser

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Reviewed-by: attila, hannesw
This commit is contained in:
Athijegannathan Sundararajan 2015-08-24 18:25:22 +05:30
parent 3413347722
commit 0d8920ff4c
1 changed files with 24 additions and 0 deletions
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24
nashorn/src/jdk.scripting.nashorn.shell/share/classes/jdk/nashorn/tools/jjs/NashornCompleter.java
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@ -25,10 +25,13 @@
package jdk.nashorn.tools.jjs;
import java.io.File;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;
import jdk.internal.jline.console.completer.Completer;
import jdk.internal.jline.console.UserInterruptException;
import jdk.nashorn.api.tree.AssignmentTree;
@ -67,6 +70,7 @@ final class NashornCompleter implements Completer {
private final PartialParser partialParser;
private final PropertiesHelper propsHelper;
private final Parser parser;
private static final boolean BACKSLASH_FILE_SEPARATOR = File.separatorChar == '\\';
NashornCompleter(final Context context, final Global global,
final PartialParser partialParser, final PropertiesHelper propsHelper) {
@ -182,6 +186,9 @@ final class NashornCompleter implements Completer {
// but property name missing pattern.
private static final Pattern SELECT_PROP_MISSING = Pattern.compile(".*\\.\\s*");
// Pattern to match load call
private static final Pattern LOAD_CALL = Pattern.compile("\\s*load\\s*\\(\\s*");
@Override
public int complete(final String test, final int cursor, final List<CharSequence> result) {
// check that cursor is at the end of test string. Do not complete in the middle!
@ -210,6 +217,23 @@ final class NashornCompleter implements Completer {
final ExpressionTree topExpr = getTopLevelExpression(parser, completeExpr);
if (topExpr == null) {
// special case for load call that looks like "load(" with optional whitespaces
if (LOAD_CALL.matcher(test).matches()) {
// throw a file dialog box
final JFileChooser chooser = new JFileChooser();
chooser.setFileFilter(new FileNameExtensionFilter("JavaScript Files", "js"));
int retVal = chooser.showOpenDialog(null);
if (retVal == JFileChooser.APPROVE_OPTION) {
String name = chooser.getSelectedFile().getAbsolutePath();
// handle '\' file separator
if (BACKSLASH_FILE_SEPARATOR) {
name = name.replace("\\", "\\\\");
}
result.add("\"" + name + "\")");
return cursor + name.length() + 3;
}
}
// did not parse to be a top level expression, no suggestions!
return cursor;
}