Cervantes: Add back to stock reader (#5316)

frontend/ui/elements/common_settings_menu_table.lua

@@ -11,6 +11,19 @@ local T = require("ffi/util").template
 
 local common_settings = {}
 
+if Device:isCervantes() then
+    local util = require("util")
+    if util.pathExists("/usr/bin/restart.sh") then
+        common_settings.start_bq = {
+            text = T(_("Start %1 reader app"), "BQ"),
+            callback = function()
+                UIManager:quit()
+                UIManager._exit_code = 87
+            end,
+        }
+    end
+end
+
 if Device:hasFrontlight() then
     local ReaderFrontLight = require("apps/reader/modules/readerfrontlight")
     common_settings.frontlight = {

frontend/ui/elements/filemanager_menu_order.lua

@@ -149,6 +149,7 @@ local order = {
         "poweroff", -- if Device:isKobo()
         "reboot",   -- if Device:isKobo()
         "----------------------------",
+        "start_bq",
         "exit",
     }
 }

frontend/ui/elements/reader_menu_order.lua

@@ -172,6 +172,7 @@ local order = {
         "poweroff", -- if Device:isKobo()
         "reboot",   -- if Device:isKobo()
         "----------------------------",
+        "start_bq",
         "exit",
     }
 }

platform/cervantes/koreader.sh

@@ -73,7 +73,7 @@ fi
 # check if QBookApp was started before us, then
 # restart the application after leaving KOReader
 export STANDALONE="true"
-if pkill -0 QBookpp; then
+if pkill -0 QBookApp; then
     STANDALONE="false"
 fi
 
@@ -86,6 +86,7 @@ fi
 # any number lower than that will exit this script.
 RESTART_KOREADER=85
 ENTER_USBMS=86
+ENTER_QBOOKAPP=87
 RETURN_VALUE="${RESTART_KOREADER}"
 
 # Loop forever until KOReader requests a normal exit.
@@ -105,6 +106,19 @@ while [ "${RETURN_VALUE}" -ge "${RESTART_KOREADER}" ]; do
 
         safemode storage --force 2>/dev/null
         # waiting forever for home button events.
+
+    elif [ "${RETURN_VALUE}" -eq "${ENTER_QBOOKAPP}" ]; then
+        # iface is down and wpa killed. Start connman
+        [ -x /etc/init.d/connman ] && /etc/init.d/connman start
+
+        # (re)start the reading application in the background
+        restart.sh >/dev/null 2>&1
+        sleep 2
+
+        # loop while BQ app is running.
+        while pkill -0 QBookApp; do
+            sleep 10
+        done
     fi
 done