Show/Hide Virtual keyboard and more keyboard shortcuts (#12162)

frontend/apps/reader/modules/readerwikipedia.lua

@@ -1,5 +1,6 @@
 local ConfirmBox = require("ui/widget/confirmbox")
 local DataStorage = require("datastorage")
+local Device = require("device")
 local DictQuickLookup = require("ui/widget/dictquicklookup")
 local InfoMessage = require("ui/widget/infomessage")
 local InputDialog = require("ui/widget/inputdialog")
@@ -28,6 +29,7 @@ local ReaderWikipedia = ReaderDictionary:extend{
 }
 
 function ReaderWikipedia:init()
+    self:registerKeyEvents()
     self.wiki_languages = {}
     self.ui.menu:registerToMainMenu(self)
     if not wikipedia_history then
@@ -35,6 +37,12 @@ function ReaderWikipedia:init()
     end
 end
 
+function ReaderWikipedia:registerKeyEvents()
+    if Device:hasKeyboard() then
+        self.key_events.ShowWikipediaLookup = { { "Alt", "W" } }
+    end
+end
+
 function ReaderWikipedia:lookupInput()
     self.input_dialog = InputDialog:new{
         title = _("Enter a word or phrase to look up"),