1 files changed, 68 insertions, 0 deletions
diff --git a/deluge/ui/web/js/extjs/ext-extensions/tree/MultiSelectionModelFix.js b/deluge/ui/web/js/extjs/ext-extensions/tree/MultiSelectionModelFix.js
new file mode 100644
index 0000000..ba26a72
--- /dev/null
+++ b/deluge/ui/web/js/extjs/ext-extensions/tree/MultiSelectionModelFix.js
@@ -0,0 +1,68 @@
+/**
+ * Ext.ux.tree.MultiSelectionModelFix.js
+ *
+ * Copyright (c) Damien Churchill 2009-2010 <damoxc@gmail.com>
+ *
+ * This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
+ * the additional special exception to link portions of this program with the OpenSSL library.
+ * See LICENSE for more details.
+ */
+
+/**
+ * This enhances the MSM to allow for shift selecting in tree grids etc.
+ * @author Damien Churchill <damoxc@gmail.com>
+ */
+Ext.override(Ext.tree.MultiSelectionModel, {
+    onNodeClick: function (node, e) {
+        if (e.ctrlKey && this.isSelected(node)) {
+            this.unselect(node);
+        } else if (e.shiftKey && !this.isSelected(node)) {
+            var parentNode = node.parentNode;
+            // We can only shift select files in the same node
+            if (this.lastSelNode.parentNode.id != parentNode.id) return;
+
+            // Get the node indexes
+            var fi = parentNode.indexOf(node),
+                li = parentNode.indexOf(this.lastSelNode);
+
+            // Select the last clicked node and wipe old selections
+            this.select(this.lastSelNode, e, false, true);
+
+            // Swap the values if required
+            if (fi > li) {
+                (fi = fi + li), (li = fi - li), (fi = fi - li);
+            }
+
+            // Select all the nodes
+            parentNode.eachChild(function (n) {
+                var i = parentNode.indexOf(n);
+                if (fi < i && i < li) {
+                    this.select(n, e, true, true);
+                }
+            }, this);
+
+            // Select the clicked node
+            this.select(node, e, true);
+        } else {
+            this.select(node, e, e.ctrlKey);
+        }
+    },
+
+    select: function (node, e, keepExisting, suppressEvent) {
+        if (keepExisting !== true) {
+            this.clearSelections(true);
+        }
+        if (this.isSelected(node)) {
+            this.lastSelNode = node;
+            return node;
+        }
+        this.selNodes.push(node);
+        this.selMap[node.id] = node;
+        this.lastSelNode = node;
+        node.ui.onSelectedChange(true);
+        if (suppressEvent !== true) {
+            this.fireEvent('selectionchange', this, this.selNodes);
+        }
+        return node;
+    },
+});