first commit

node_modules/panzoom/lib/createTextSelectionInterceptor.js

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+/**
+ * Disallows selecting text.
+ */
+module.exports = createTextSelectionInterceptor;
+
+function createTextSelectionInterceptor(useFake) {
+  if (useFake) {
+    return {
+      capture: noop,
+      release: noop
+    };
+  }
+
+  var dragObject;
+  var prevSelectStart;
+  var prevDragStart;
+  var wasCaptured = false;
+
+  return {
+    capture: capture,
+    release: release
+  };
+
+  function capture(domObject) {
+    wasCaptured = true;
+    prevSelectStart = window.document.onselectstart;
+    prevDragStart = window.document.ondragstart;
+
+    window.document.onselectstart = disabled;
+
+    dragObject = domObject;
+    dragObject.ondragstart = disabled;
+  }
+
+  function release() {
+    if (!wasCaptured) return;
+    
+    wasCaptured = false;
+    window.document.onselectstart = prevSelectStart;
+    if (dragObject) dragObject.ondragstart = prevDragStart;
+  }
+}
+
+function disabled(e) {
+  e.stopPropagation();
+  return false;
+}
+
+function noop() {}