show a different message in terminal after reconnecting versus new te…

…rminal (mainly a flag I’ll use later to know to restore buffer)

src/gwt/src/org/rstudio/studio/client/workbench/views/terminal/TerminalSession.java

@@ -85,6 +85,8 @@ private void initialize(WorkbenchServerOperations server,
  */
  public void connect()
  {
+ setNewTerminal(getHandle() == null);
+
  server_.startTerminal(80, 25, getHandle(), getTitle(), getSequence(),
  new ServerRequestCallback<ConsoleProcess>()
  {

src/gwt/src/org/rstudio/studio/client/workbench/views/terminal/xterm/XTermWidget.java

@@ -120,8 +120,18 @@ public void execute(String title)
  */
  private void showBanner()
  {
- writeln("Welcome to " + AnsiColor.LIGHTBLUE + "RStudio" +
- AnsiColor.DEFAULT + " terminal.");
+ if (newTerminal_)
+ {
+ writeln("Welcome to " + AnsiColor.LIGHTBLUE + "RStudio" +
+ AnsiColor.DEFAULT + " terminal.");
+ }
+ else
+ {
+ // TODO (gary) this is temporary until buffer save and restore is done
+ writeln("\33[30;43m" +
+ "Reconnected. Restoring buffer is not-yet-implemented.");
+ writeln("Hit <enter> for prompt." + AnsiColor.DEFAULT);
+ }
  }
 
  /**
@@ -328,7 +338,25 @@ public void onLoaded()
  }
  });
  }
+
+ /**
+ * Set if connecting to a new terminal session.
+ * @param isNew true if a new connection, false if a reconnect
+ */
+ public void setNewTerminal(boolean isNew)
+ {
+ newTerminal_ = isNew;
+ }
 
+ /**
+ * Indicates if connecting to a new terminal session.
+ * @return true if a new connection, false if a reconnect
+ */
+ public boolean newTerminal()
+ {
+ return newTerminal_;
+ }
+
  private static final ExternalJavaScriptLoader xtermLoader_ =
  getLoader(XTermResources.INSTANCE.xtermjs(), 
  XTermResources.INSTANCE.xtermjsUncompressed());
@@ -340,6 +368,7 @@ public void onLoaded()
  private XTermNative terminal_;
  private LinkElement currentStyleEl_;
  private boolean initialized_ = false;
+ private boolean newTerminal_ = true;
 
  private int previousRows_ = -1;
  private int previousCols_ = -1;