[UX] Add gesture - poweroff and restart device (#5202)

Also abstract canRestart, canReboot and CanPowerOff.

frontend/apps/filemanager/filemanagermenu.lua

@@ -437,7 +437,7 @@ function FileManagerMenu:setUpdateItemTable()
             self:exitOrRestart(function() UIManager:restartKOReader() end)
         end,
     }
-    if Device:isAndroid() then
+    if not Device:canRestart() then
         self.menu_items.exit_menu = self.menu_items.exit
         self.menu_items.exit = nil
         self.menu_items.restart_koreader = nil

frontend/apps/reader/modules/readergesture.lua

@@ -58,6 +58,8 @@ local action_strings = {
     suspend = _("Suspend"),
     exit = _("Exit KOReader"),
     restart = _("Restart KOReader"),
+    reboot = _("Reboot the device"),
+    poweroff = _("Power off"),
     show_menu = _("Show menu"),
     show_config_menu = _("Show bottom menu"),
     show_frontlight_dialog = _("Show frontlight dialog"),
@@ -685,7 +687,9 @@ function ReaderGesture:buildMenu(ges, default)
         {"night_mode", true},
         {"suspend", true},
         {"exit", true},
-        {"restart", not Device:isAndroid()},
+        {"restart", Device:canRestart()},
+        {"reboot", Device:canReboot()},
+        {"poweroff", Device:canPowerOff()},
 
         {"show_menu", true},
         {"show_config_menu", not self.is_docless, true},
@@ -1415,6 +1419,22 @@ function ReaderGesture:gestureAction(action, ges)
         self.ui.menu:exitOrRestart()
     elseif action == "restart" then
         self.ui.menu:exitOrRestart(function() UIManager:restartKOReader() end)
+    elseif action == "reboot" then
+        UIManager:show(ConfirmBox:new{
+            text = _("Are you sure you want to reboot the device?"),
+            ok_text = _("Reboot"),
+            ok_callback = function()
+                UIManager:nextTick(UIManager.reboot_action)
+            end,
+        })
+    elseif action == "poweroff" then
+        UIManager:show(ConfirmBox:new{
+            text = _("Are you sure you want to power off the device?"),
+            ok_text = _("Power off"),
+            ok_callback = function()
+                UIManager:nextTick(UIManager.poweroff_action)
+            end,
+        })
     elseif action == "zoom_contentwidth" then
         self.ui:handleEvent(Event:new("SetZoomMode", "contentwidth"))
     elseif action == "zoom_contentheight" then

frontend/apps/reader/modules/readermenu.lua

@@ -208,7 +208,7 @@ function ReaderMenu:setUpdateItemTable()
             self:exitOrRestart(function() UIManager:restartKOReader() end)
         end,
     }
-    if Device:isAndroid() then
+    if not Device:canRestart() then
         self.menu_items.exit_menu = self.menu_items.exit
         self.menu_items.exit = nil
         self.menu_items.restart_koreader = nil

frontend/device/android/device.lua

@@ -66,6 +66,7 @@ local Device = Generic:new{
     hasEinkScreen = function() return android.isEink() end,
     hasColorScreen = function() return not android.isEink() end,
     hasFrontlight = yes,
+    canRestart = no,
     firmware_rev = android.app.activity.sdkVersion,
     display_dpi = android.lib.AConfiguration_getDensity(android.app.config),
     hasClipboard = yes,

frontend/device/cervantes/device.lua

@@ -41,6 +41,8 @@ local Cervantes = Generic:new{
     hasOTAUpdates = yes,
     hasKeys = yes,
     hasWifiManager = yes,
+    canReboot = yes,
+    canPowerOff = yes,
 
     -- do we support usb mass storage?
     canToggleMassStorage = function() return isMassStorageSupported() end,

frontend/device/generic/device.lua

@@ -53,6 +53,9 @@ local Device = {
     isSonyPRSTUX = no,
     isSDL = no,
     isEmulator = no,
+    canRestart = yes,
+    canReboot = no,
+    canPowerOff = no,
 
     -- some devices have part of their screen covered by the bezel
     viewport = nil,

frontend/device/kobo/device.lua

@@ -25,6 +25,8 @@ local Kobo = Generic:new{
     isTouchDevice = yes, -- all of them are
     hasOTAUpdates = yes,
     hasWifiManager = yes,
+    canReboot = yes,
+    canPowerOff = yes,
 
     -- most Kobos have X/Y switched for the touch screen
     touch_switch_xy = true,

frontend/device/sony-prstux/device.lua

@@ -12,6 +12,8 @@ local SonyPRSTUX = Generic:new{
     hasKeys = yes,
     hasOTAUpdates = yes,
     hasWifiManager = yes,
+    canReboot = yes,
+    canPowerOff = yes,
 }
 
 

frontend/ui/elements/common_info_menu_table.lua

@@ -74,7 +74,7 @@ if Device:isCervantes() or Device:isKindle() or Device:isKobo() then
         end,
     }
 end
-if Device:isCervantes() or Device:isKobo() or Device:isSonyPRSTUX() then
+if Device:canReboot() then
     common_info.reboot = {
         text = _("Reboot the device"),
         keep_menu_open = true,
@@ -88,6 +88,8 @@ if Device:isCervantes() or Device:isKobo() or Device:isSonyPRSTUX() then
             })
         end
     }
+end
+if Device:canPowerOff() then
     common_info.poweroff = {
         text = _("Power off"),
         keep_menu_open = true,