Android fullscreen switcher (#2938)

frontend/ui/elements/common_settings_menu_table.lua

@@ -65,6 +65,7 @@ common_settings.network = {
     text = _("Network"),
     sub_item_table = NetworkMgr:getMenuTable()
 }
+
 common_settings.screen = {
     text = _("Screen"),
     sub_item_table = {
@@ -76,6 +77,10 @@ common_settings.screen = {
         require("ui/elements/menu_activate"),
     },
 }
+if Device:isAndroid() then
+    table.insert(common_settings.screen.sub_item_table, require("ui/elements/screen_fullscreen_menu_table"))
+end
+
 common_settings.save_document = {
     text = _("Save document"),
     sub_item_table = {

frontend/ui/elements/screen_fullscreen_menu_table.lua

@@ -0,0 +1,29 @@
+local isAndroid, android = pcall(require, "android")
+local logger = require("logger")
+local _ = require("gettext")
+
+if not isAndroid then return end
+
+return {
+    text = _("Fullscreen"),
+    checked_func = function()
+        local disabled_fullscreen = G_reader_settings:isTrue("disabled_fullscreen")
+        logger.dbg("screen_fullscreen_menu_table.lua: Is fullscreen disabled", disabled_fullscreen)
+        return disabled_fullscreen
+    end,
+    callback = function()
+        local enabled_fullscreen = G_reader_settings:isFalse("disabled_fullscreen")
+
+        logger.dbg("screen_fullscreen_menu_table.lua:  Fullscreen swiching to: ", enabled_fullscreen)
+        android.setFullscreen(enabled_fullscreen)
+
+        local status_bar_height = android.getStatusBarHeight()
+        logger.dbg("screen_fullscreen_menu_table.lua: Status bar height: ", status_bar_height)
+        local screen_width = android.getScreenWidth()
+        logger.dbg("screen_fullscreen_menu_table.lua: Screen width: ", screen_width)
+        local screen_height = android.getScreenHeight()
+        logger.dbg("screen_fullscreen_menu_table.lua: Screen height: ", screen_height)
+
+        G_reader_settings:saveSetting("disabled_fullscreen", enabled_fullscreen)
+    end,
+}