From 745258116bdfcb5b8f35afe96c34be0adc4ab6ab Mon Sep 17 00:00:00 2001
From: Kiritow <1362050620@qq.com>
Date: Mon, 19 Nov 2018 19:02:31 +0800
Subject: [PATCH] Add PageUp PageDown support

---
 SmartStorage.lua | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/SmartStorage.lua b/SmartStorage.lua
index 6cfaa7d..2ff97ce 100644
--- a/SmartStorage.lua
+++ b/SmartStorage.lua
@@ -7,7 +7,7 @@ local term=require('term')
 local shell=require('shell')
 require('libevent')
 
-local version_tag="Smart Storage v0.5.4"
+local version_tag="Smart Storage v0.5.5"
 
 print(version_tag)
 print("Checking hardware...")
@@ -153,11 +153,11 @@ local function display(tb_data,tb_display,begin_at,filter)
     local count_shown=0
     for i=begin_at,#tb_display,1 do
         local this_table=tb_data[tb_display[i]]
-        if(filter==nil or string.len(filter)<1 or string.find(this_table.name,filter)~=nil) then
+        if(filter==nil or string.len(filter)<1) then
             local old=gpu.setForeground(0xFFFF00)
             gpu.set(1,i-begin_at+3,this_table.name .. " -- " .. this_table.label .. " (" .. this_table.total .. ")")
             gpu.setForeground(old)
-        else
+        elseif(string.find(this_table.name,filter)~=nil) then
             gpu.set(1,i-begin_at+3,this_table.name .. " -- " .. this_table.label .. " (" .. this_table.total .. ")")
         end
         count_shown=count_shown+1
@@ -184,10 +184,24 @@ while true do
         need_refresh=false
     end
 
-    local e=WaitMultipleEvent("interrupted","scroll","touch")
+    local e=WaitMultipleEvent("interrupted","scroll","touch","key_down")
 
     if(e.event=="interrupted") then
         break
+    elseif(e.event=="key_down") then
+        local w,h=gpu.getResolution()
+        if(e.code==201) then -- PageUp
+            if(begin_at>1) then
+                begin_at=begin_at-(h-5)
+                if(begin_at<1) then begin_at=1 end
+                need_refresh=true
+            end
+        elseif(e.code==209) then -- PageDown
+            if(begin_at+h-5<#tb_display) then 
+                begin_at=begin_at+h-5
+                need_refresh=true
+            end
+        end
     elseif(e.event=="scroll") then
         -- Scroll Down = -1. Scroll Up = 1
         if(e.direction<0) then