Index: src/org/openstreetmap/josm/actions/OpenLocationAction.java
===================================================================
--- src/org/openstreetmap/josm/actions/OpenLocationAction.java (revision 6015)
+++ src/org/openstreetmap/josm/actions/OpenLocationAction.java (working copy)
@@ -146,7 +146,32 @@
return result;
}
+
/**
+ * Summarizes acceptable urls for error message purposes.
+ * @since 6015
+ */
+ public String findSummaryDocumentation() {
+ String result = "";
+ //for (Class taskClass : downloadTasks) {
+ for (int i = 0; i < downloadTasks.size(); i++) {
+ Class taskClass = downloadTasks.get(i);
+ if (taskClass != null) {
+ try {
+ DownloadTask task = taskClass.getConstructor().newInstance();
+ result += "
" + i + " - " + task.acceptsDocumentationSummary();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ }
+ return result;
+ }
+
+
+
+
+ /**
* Open the given URL.
* @param new_layer true if the URL needs to be opened in a new layer, false otherwise
* @param url The URL to open
@@ -163,11 +188,12 @@
if (future != null) {
Main.worker.submit(new PostDownloadHandler(task, future));
} else {
+ final String details = findSummaryDocumentation(); // Explain what patterns are supported
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JOptionPane.showMessageDialog(Main.parent, tr(
- "Cannot open URL ''{0}'' because no suitable download task is available.",
- url), tr("Download Location"), JOptionPane.ERROR_MESSAGE);
+ "Cannot open URL ''{0}'' because no suitable matching task was found:
{1}
",
+ url, details), tr("Download Location"), JOptionPane.ERROR_MESSAGE);
}
});
}
Index: src/org/openstreetmap/josm/actions/downloadtasks/DownloadOsmChangeTask.java
===================================================================
--- src/org/openstreetmap/josm/actions/downloadtasks/DownloadOsmChangeTask.java (revision 6015)
+++ src/org/openstreetmap/josm/actions/downloadtasks/DownloadOsmChangeTask.java (working copy)
@@ -46,7 +46,15 @@
|| url.matches("https?://.*/.*\\.osc") // Remote .osc files
);
}
-
+ @Override
+ public String acceptsDocumentationSummary() {
+ String foo = "DownloadOsmChangeTask: