Add hasSelection public API

src/SelectionManager.ts

@@ -145,6 +145,13 @@ export class SelectionManager extends EventEmitter {
     this._buffer = buffer;
   }
 
+  /**
+   * Gets whether there is an active text selection.
+   */
+  public get hasSelection(): boolean {
+    return !!this._model.finalSelectionStart && !!this._model.finalSelectionEnd;
+  }
+
   /**
    * Gets the text currently selected.
    */

src/xterm.js

@@ -1373,11 +1373,18 @@ Terminal.prototype.deregisterLinkMatcher = function(matcherId) {
   }
 }
 
+/**
+ * Gets whether the terminal has an active selection.
+ */
+Terminal.prototype.hasSelection = function() {
+  return this.selectionManager.hasSelection;
+}
+
 /**
  * Gets the terminal's current selection, this is useful for implementing copy
  * behavior outside of xterm.js.
  */
-Terminal.prototype.getSelectionText = function() {
+Terminal.prototype.getSelection = function() {
   // TODO: Should prepareTextForClipboard logic be moved to SelectionManager?
   return prepareTextForClipboard(this.selectionManager.selectionText);
 }