fix #1851 - multiple selection with shift (testing requested)

vispa/extensions/file/static/js/base/events.js

@@ -77,6 +77,15 @@ define(["jquery", "jclass"], function($, JClass) {
         }
         if (self.FileBase.workflow.selectmode) {
           self.FileBase.selections.changeSelection(node, true);
+        } else if (self.FileBase.workflow.selectmodeMultiple) {
+          // multiple selection with shift (default)
+          var indexOfCurrentNode = node.parent().children().index(node);
+          var indexOfLastNode = node.parent().children().index(self.FileBase.selections.lastSelectedNode);
+          var krementer = (indexOfCurrentNode - indexOfLastNode);
+          krementer /= Math.abs(krementer);
+          while (!node.attr("selected")) {
+            self.FileBase.selections.selectArbitNode(krementer);
+          }
         } else if ((vispa.device.hasTouch || openstring == "click") && Object.keys(self.FileBase
             .selections
             .entries).length > 0) {
@@ -97,12 +106,23 @@ define(["jquery", "jclass"], function($, JClass) {
         node.click(function(event) {
           if (self.FileBase.instance._shortcuts.singleSelect == "keydown:meta" && 
             event.metaKey) self.FileBase.workflow.selectmode = true;
-          if (!self.FileBase.workflow.selectmode) {
+          if (!self.FileBase.workflow.selectmode && !self.FileBase.workflow.selectmodeMultiple) {
             self.FileBase.selections.unselectAll();
           }
           event.preventDefault();
           self.FileBase.menuitems.hideMenu();
+          if (self.FileBase.workflow.selectmodeMultiple) {
+            // multiple selection with shift (default)
+            var indexOfCurrentNode = node.parent().children().index(node);
+            var indexOfLastNode = node.parent().children().index(self.FileBase.selections.lastSelectedNode);
+            var krementer = (indexOfCurrentNode - indexOfLastNode);
+            krementer /= Math.abs(krementer);
+            while (!node.attr("selected")) {
+              self.FileBase.selections.selectArbitNode(krementer);
+            }
+          } else {
             self.FileBase.selections.changeSelection(node, true);
+          }
           if (self.FileBase.instance._shortcuts.singleSelect == "keydown:meta" && 
             event.metaKey) self.FileBase.workflow.selectmode = false;
         });

vispa/extensions/file/static/js/base/selections.js

@@ -167,7 +167,7 @@ define(["jquery", "jclass"], function($, JClass) {
       if (selectNode.length === 0) {
         return;
       }
-      if (!this.FileBase.workflow.selectmode) {
+      if (!this.FileBase.workflow.selectmode && !this.FileBase.workflow.selectmodeMultiple) {
         this.unselectAll();
       }
       this.changeSelection(selectNode, true);

vispa/extensions/file/static/js/shortcuts.js

@@ -17,6 +17,22 @@ define(function() {
         this.fb.workflow.selectmode = false;
       }
     },
+    multipleSelect: {
+      description: "Key for selection of multiple files or folders",
+      value: "keydown:shift",
+      callback: function(event) {
+        event.preventDefault();
+        this.fb.workflow.selectmodeMultiple = true;
+      }
+    },
+    abortMultipleSelect: {
+      description: "Key for selection of multiple files or folders",
+      value: "keyup:shift",
+      callback: function(event) {
+        event.preventDefault();
+        this.fb.workflow.selectmodeMultiple = false;
+      }
+    },
     copy: {
       description: "Copy current selection",
       value: ctrlMeta+"+c",