From 46cc5c23269d35292925d5ed4d1bd74f3a13a2ee Mon Sep 17 00:00:00 2001
From: coderaiser <mnemonic.enemy@gmail.com>
Date: Thu, 23 Jul 2015 09:05:11 -0400
Subject: [PATCH] feature(listeners) add ability to select files with
 shift+click

---
 lib/client/listeners.js | 74 +++++++++++++++++++++++++++++++++++------
 1 file changed, 63 insertions(+), 11 deletions(-)

diff --git a/lib/client/listeners.js b/lib/client/listeners.js
index 74878d5f..33da03bb 100644
--- a/lib/client/listeners.js
+++ b/lib/client/listeners.js
@@ -145,23 +145,27 @@ var Util, DOM, CloudFunc, CloudCmd;
         }
         
         function onClick(event) {
-            var ctrl    = event.ctrlKey,
-                meta   = event.metaKey;
+            var ctrl    = event.ctrlKey;
                 
-            if (!ctrl && !meta)
+            if (!ctrl)
                 event.preventDefault();
-            else
-                toggleSelect(ctrl, meta);
             
             changePanel(event.target);
         }
         
-        function toggleSelect(ctrl, meta) {
-            var Info    = DOM.CurrentInfo,
-                isMac   = /Mac/.test(window.navigator.platform);
+        function toggleSelect(key, files) {
+            var isMac   = /Mac/.test(window.navigator.platform);
             
-            if (isMac && meta || ctrl)
-                DOM.toggleSelectedFile(Info.element);
+            if (!key)
+                throw Error('key should not be undefined!');
+            
+            if (isMac && key.meta || key.ctrl)
+                DOM.toggleSelectedFile(files[0]);
+            else if (key.shift)
+                files.forEach(function(current) {
+                    if (!DOM.isSelected(current))
+                        DOM.toggleSelectedFile(current);
+                });
         }
         
         function changePanel(element) {
@@ -247,8 +251,56 @@ var Util, DOM, CloudFunc, CloudCmd;
         }
         
         function setCurrentFileByEvent(event) {
-            var element = getLIElement(event.target);
+            var fromName,
+                toName,
+                files       = [],
+                key         = {
+                    ctrl: event.ctrlKey,
+                    meta: event.metaKey,
+                    shift: event.shiftKey
+                },
+                
+                element     = getLIElement(event.target);
+            
+            fromName = Info.name;
             DOM.setCurrentFile(element);
+            toName  = Info.name;
+            
+            if (key.shift)
+                files = getFilesRange(fromName, toName);
+            else
+                files.push(Info.element);
+            
+            toggleSelect(key, files);
+        }
+        
+        function getFilesRange(from, to) {
+            var i           = 0,
+                delta       = 0,
+                result      = [],
+                files       = [].slice.call(DOM.getFiles()),
+                names       = DOM.getSelectedNames(files),
+                indexFrom,
+                indexTo;
+            
+            if (names[0] === '..') {
+                names.shift();
+                delta = 1;
+            }
+            
+            indexFrom   = names.indexOf(from);
+            indexTo     = names.indexOf(to);
+            
+            if (indexFrom < indexTo)
+                for (i = indexFrom; i <= indexTo; i++)
+                    result.push(files[i + delta]);
+            else if (indexFrom > indexTo)
+                for (i = indexFrom; i >= indexTo; i--)
+                    result.push(files[i + delta]);
+            else
+                result.push(to);
+            
+            return result;
         }
         
         function contextMenu() {