From a8ca38814681266dc1c7f37ee554978495a07c19 Mon Sep 17 00:00:00 2001
From: James Allen <james@sharelatex.com>
Date: Mon, 17 Mar 2014 14:33:02 +0000
Subject: [PATCH] Allow shift-click to select multiple versions

---
 .../coffee/track-changes/ChangeListView.coffee       | 12 +++++++++++-
 .../web/public/stylesheets/less/trackchanges.less    |  4 ++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/services/web/public/coffee/track-changes/ChangeListView.coffee b/services/web/public/coffee/track-changes/ChangeListView.coffee
index ac8e918622..22bb129e03 100644
--- a/services/web/public/coffee/track-changes/ChangeListView.coffee
+++ b/services/web/public/coffee/track-changes/ChangeListView.coffee
@@ -39,7 +39,10 @@ define [
 			view.$el.insertBefore(elementAtIndex)
 
 			view.on "click", (e, v) =>
-				@setSelectionRange(index, index)
+				if e.shiftKey
+					@selectRangeTo(index)
+				else
+					@setSelectionRange(index, index)
 
 			view.on "selected:to", (e, v) =>
 				@setSelectionRange(@selectedFromIndex, index)
@@ -74,6 +77,13 @@ define [
 			@resetAllSelectors()
 			@triggerChangeDiff()
 
+		selectRangeTo: (index) ->
+			return unless @selectedFromIndex? and @selectedToIndex?
+			if index < @selectedToIndex
+				@setSelectionRange(@selectedFromIndex, index)
+			else
+				@setSelectionRange(index, @selectedToIndex)
+
 		resetAllSelectors: () ->
 			for view, i in @itemViews
 				view.resetSelector(i, @selectedFromIndex, @selectedToIndex)
diff --git a/services/web/public/stylesheets/less/trackchanges.less b/services/web/public/stylesheets/less/trackchanges.less
index aa1f697d76..4c1afa70a5 100644
--- a/services/web/public/stylesheets/less/trackchanges.less
+++ b/services/web/public/stylesheets/less/trackchanges.less
@@ -96,6 +96,10 @@
 			position: relative;
 			border-bottom: 1px solid #ccc;
 			cursor: pointer;
+			user-select: none;
+			-ms-user-select: none;
+			-moz-user-select: none;
+			-webkit-user-select: none;
 			.change-selectors {
 				.change-selector-from {
 					position: absolute;