add crossbrowser no-select

Author: holiber

dist/sl-vue-tree-dark.css

@@ -1,6 +1,11 @@
 .sl-vue-tree {
     position: relative;
     cursor: default;
+    -webkit-touch-callout: none; /* iOS Safari */
+    -webkit-user-select: none; /* Safari */
+    -khtml-user-select: none; /* Konqueror HTML */
+    -moz-user-select: none; /* Firefox */
+    -ms-user-select: none; /* Internet Explorer/Edge */
     user-select: none;
 }
 
@@ -72,4 +77,4 @@
     opacity: 0.5;
     margin-left: 20px;
     padding: 5px 10px;
-}
+}

dist/sl-vue-tree-minimal.css

@@ -1,6 +1,11 @@
 .sl-vue-tree {
     position: relative;
     cursor: default;
+    -webkit-touch-callout: none; /* iOS Safari */
+    -webkit-user-select: none; /* Safari */
+    -khtml-user-select: none; /* Konqueror HTML */
+    -moz-user-select: none; /* Firefox */
+    -ms-user-select: none; /* Internet Explorer/Edge */
     user-select: none;
 }
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sl-vue-tree",
-  "version": "1.8.1",
+  "version": "1.8.2",
   "description": "draggable tree vue component",
   "browserslist": "> 0.25%, not dead",
   "main": "dist/sl-vue-tree.js",

src/sl-vue-tree-dark.css

@@ -1,6 +1,11 @@
 .sl-vue-tree {
     position: relative;
     cursor: default;
+    -webkit-touch-callout: none; /* iOS Safari */
+    -webkit-user-select: none; /* Safari */
+    -khtml-user-select: none; /* Konqueror HTML */
+    -moz-user-select: none; /* Firefox */
+    -ms-user-select: none; /* Internet Explorer/Edge */
     user-select: none;
 }
 
@@ -72,4 +77,4 @@
     opacity: 0.5;
     margin-left: 20px;
     padding: 5px 10px;
-}
+}

src/sl-vue-tree-minimal.css

@@ -1,6 +1,11 @@
 .sl-vue-tree {
     position: relative;
     cursor: default;
+    -webkit-touch-callout: none; /* iOS Safari */
+    -webkit-user-select: none; /* Safari */
+    -khtml-user-select: none; /* Konqueror HTML */
+    -moz-user-select: none; /* Firefox */
+    -ms-user-select: none; /* Internet Explorer/Edge */
     user-select: none;
 }