X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/97b2b3365d24475cbf61b3ad82c879911270f279..39f891f942d26b4048bf5f4e32fc235b33f36b26:/src/smartxml/core.js

diff --git a/src/smartxml/core.js b/src/smartxml/core.js
index 65b7852..665f9d5 100644
--- a/src/smartxml/core.js
+++ b/src/smartxml/core.js
@@ -431,6 +431,59 @@ var documentTransformations = {
         this._defineDocumentProperties(insertion.ofNode._$);
         insertion.ofNode.triggerChangeEvent('nodeAdded');
         return insertion.ofNode;
+    },
+    deleteText: function(params) {
+        var ptr, next, 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();
+                    toDetach.detach();
+                }
+            } 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();
+            }
+        }
     }
 };