added a isMobile() function that adds a shift and ctrl key to the files view, which can be clicked to fake a shift or ctrl key selection event on a tablet/mobile - first pass at this, its fairly usable. I might allow de-selecting the shift or ctrl key if they are pressed again before a selection is used, otherwise this is all functional. Note, I also changed the contextmenu to a click not mouse down on selection of an item in the menu. This is allows me to stop the propagation of the click event which was being trapped by the $(document).on( "click" ... and which we dont want - also exposes a BUG that when I click the context menu onto a different image it does not highlight the new image and some menu items process the original highlight, others the image under the context menu

internal/js/files_support.js

@@ -223,12 +223,14 @@ function ChangeSize(clicked_button,sz)
 // whether you click after highlight or before
 function DoSel(e, el)
 {
-    if( e.ctrlKey )
+    if( e.ctrlKey || document.fake_ctrl === 1 )
     {
         $(el).toggleClass('highlight')
+        if( document.fake_ctrl === 1 )
+            document.fake_ctrl=0
         return
     }
-    if( e.shiftKey )
+    if( e.shiftKey || document.fake_shift === 1 )
     {
         st=Number($('.highlight').first().attr('ecnt'))
         end=Number($('.highlight').last().attr('ecnt'))
@@ -243,6 +245,9 @@ function DoSel(e, el)
             $('.entry').slice( end, clicked+1 ).addClass('highlight')
         else
             $('.entry').slice( clicked, st ).addClass('highlight')
+
+        if( document.fake_shift === 1 )
+            document.fake_shift=0
         return
     }
     $('.highlight').removeClass('highlight')