add network settings in reader menu

and remove the wifi toggler on the footer of each menu page,
so that network status is only checked (currently with the stdout of ip cmd)
when navigating to the "Network settings" submenu instead of checking
on each menu popup.

frontend/apps/reader/modules/readermenu.lua

@@ -4,6 +4,7 @@ local InfoMessage = require("ui/widget/infomessage")
 local InputDialog = require("ui/widget/inputdialog")
 local ConfirmBox = require("ui/widget/confirmbox")
 local GestureRange = require("ui/gesturerange")
+local NetworkMgr = require("ui/networkmgr")
 local OTAManager = require("ui/otamanager")
 local UIManager = require("ui/uimanager")
 local Device = require("device")
@@ -98,6 +99,13 @@ function ReaderMenu:setUpdateItemTable()
             UIManager:getRefreshMenuTable(),
         },
     })
+    table.insert(self.tab_item_table.setting, {
+        text = _("Network settings"),
+        sub_item_table = {
+            NetworkMgr:getWifiMenuTable(),
+            NetworkMgr:getProxyMenuTable(),
+        }
+    })
     table.insert(self.tab_item_table.setting, {
         text = _("Night mode"),
         checked_func = function() return G_reader_settings:readSetting("night_mode") end,

frontend/ui/networkmgr.lua

@@ -1,3 +1,4 @@
+local InfoMessage = require("ui/widget/infomessage")
 local ConfirmBox = require("ui/widget/confirmbox")
 local UIManager = require("ui/uimanager")
 local Device = require("device")
@@ -83,10 +84,72 @@ function NetworkMgr:getWifiStatus()
     return false
 end
 
+function NetworkMgr:setHTTPProxy(proxy)
+    local http = require("socket.http")
+    http.PROXY = proxy
+    if proxy then
+        G_reader_settings:saveSetting("http_proxy", proxy)
+        G_reader_settings:saveSetting("http_proxy_enabled", true)
+    else
+        G_reader_settings:saveSetting("http_proxy_enabled", false)
+    end
+end
+
+function NetworkMgr:getWifiMenuTable()
+    return {
+        text = _("Wifi connection"),
+        enabled_func = function() return Device:isKindle() or Device:isKobo() end,
+        checked_func = function() return NetworkMgr:getWifiStatus() end,
+        callback = function()
+            if NetworkMgr:getWifiStatus() then
+                NetworkMgr:promptWifiOff()
+            else
+                NetworkMgr:promptWifiOn()
+            end
+        end
+    }
+end
+
+function NetworkMgr:getProxyMenuTable()
+    local proxy_enabled = function()
+        return G_reader_settings:readSetting("http_proxy_enabled")
+    end
+    local proxy = function()
+        return G_reader_settings:readSetting("http_proxy")
+    end
+    return {
+        text_func = function()
+            return _("HTTP proxy ") .. (proxy_enabled() and proxy() or "")
+        end,
+        checked_func = function() return proxy_enabled() end,
+        callback = function()
+            if not proxy_enabled() and proxy() then
+                NetworkMgr:setHTTPProxy(proxy())
+            elseif proxy_enabled() then
+                NetworkMgr:setHTTPProxy(nil)
+            end
+            if not proxy() then
+                UIManager:show(InfoMessage:new{
+                    text = _("Tips:\nlong press on this menu entry to configure HTTP proxy."),
+                })
+            end
+        end,
+        hold_input = {
+            title = _("input proxy address"),
+            type = "text",
+            hint = proxy() or "",
+            callback = function(input)
+                if input ~= "" then
+                    NetworkMgr:setHTTPProxy(input)
+                end
+            end,
+        }
+    }
+end
+
 -- set network proxy if global variable NETWORK_PROXY is defined
 if NETWORK_PROXY then
-    local http = require("socket.http")
-    http.PROXY = NETWORK_PROXY
+    NetworkMgr:setHTTPProxy(NETWORK_PROXY)
 end
 
 return NetworkMgr

frontend/ui/widget/touchmenu.lua

@@ -20,7 +20,6 @@ local Geom = require("ui/geometry")
 local Font = require("ui/font")
 local DEBUG = require("dbg")
 local _ = require("gettext")
-local NetworkMgr = require("ui/networkmgr")
 local Blitbuffer = require("ffi/blitbuffer")
 
 --[[
@@ -322,23 +321,9 @@ function TouchMenu:init()
         text = "",
         face = self.fface,
     }
-    if Device:isKindle() or Device:isKobo() then
-        self.net_info = Button:new{
-            icon = "resources/icons/appbar.wifi.png",
-            callback = function() self:netToggle() end,
-            bordersize = 0,
-            show_parent = self,
-        }
-        self.net_info.label_widget.dim = not NetworkMgr:getWifiStatus()
-        self.device_info = HorizontalGroup:new{
-            self.time_info,
-            self.net_info,
-        }
-    else
-        self.device_info = HorizontalGroup:new{
-            self.time_info,
-        }
-    end
+    self.device_info = HorizontalGroup:new{
+        self.time_info,
+    }
     local footer_width = self.width - self.padding*2 - self.bordersize*2
     self.footer = HorizontalGroup:new{
         LeftContainer:new{
@@ -456,14 +441,6 @@ function TouchMenu:updateItems()
     UIManager.repaint_all = true
 end
 
-function TouchMenu:netToggle()
-    if NetworkMgr:getWifiStatus() == true then
-        NetworkMgr:promptWifiOff()
-    else
-        NetworkMgr:promptWifiOn()
-    end
-end
-
 function TouchMenu:switchMenuTab(tab_num)
     if self.touch_menu_callback then
         self.touch_menu_callback()