+ },
+ deleteText: function(params) {
+ var ptr, next, nextNext, toDetach, middle, text;
+
+ if(params.from.node.sameNode(params.to.node)) {
+ ptr = params.from.node;
+ text = ptr.getText();
+ ptr.setText(text.substr(0, params.from.offset) + text.substr(params.to.offset));
+ return;
+ }
+
+ // Both edge text nodes need to be edited before anything else happen in case that
+ // they get merged when detaching content between them.
+ params.from.node.setText(params.from.node.getText().substr(0, params.from.offset));
+ params.to.node.setText(params.to.node.getText().substr(params.to.offset));
+
+ ptr = params.from.node;
+ next = ptr.next();
+
+ while(next || ptr.parent()) {
+ if(next) {
+ if(next.sameNode(params.to.node)) {
+ return;
+ }
+ else if(next.nodeType === Node.ELEMENT_NODE && next.containsNode(params.to.node)) {
+ middle = next;
+ break;
+ } else {
+ toDetach = next;
+ next = next.next();
+ nextNext = next ? next.next() : null;
+ toDetach.detach({normalizeStrategy: (next && next.sameNode(params.to.node)) ? 'merge' : 'detach-right'});
+ if(next && !next.isInDocument()) {
+ next = nextNext;
+ }
+ }
+ } else {
+ ptr = ptr.parent();
+ next = ptr.next();
+ }
+ }
+
+ if(!this.containsNode(params.to.node)) {
+ // The end node was merged during detaching nodes above - there is nothing more left to do.
+ return;
+ }
+
+ ptr = middle.contents()[0];
+ while(ptr && !ptr.sameNode(params.to.node)) {
+ if(ptr.nodeType === Node.ELEMENT_NODE && ptr.containsNode(params.to.node)) {
+ ptr = ptr.contents()[0];
+ continue;
+ } else {
+ ptr = ptr.next();
+ ptr.prev().detach();
+ }
+ }