initial commit for android port of koreader

This PR just shows how far we have went to
the android port. There is still a few steps before a running
android port.

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "koreader-base"]
 	path = koreader-base
 	url = git://github.com/koreader/koreader-base.git
+[submodule "android/luajit-launcher"]
+	path = android/luajit-launcher
+	url = https://github.com/hwhw/android-luajit-launcher.git

Makefile

@@ -14,6 +14,8 @@ export PATH:=$(CURDIR)/$(KOR_BASE)/toolchain/android-toolchain/bin:$(PATH)
 MACHINE?=$(shell PATH=$(PATH) $(CC) -dumpmachine 2>/dev/null)
 INSTALL_DIR=koreader-$(MACHINE)
 
+ANDROID_LAUNCHER_DIR:=android/luajit-launcher
+
 # files to link from main directory
 INSTALL_FILES=reader.lua frontend resources defaults.lua l10n \
 		git-rev README.md COPYING
@@ -97,7 +99,8 @@ kindleupdate: all
 		zip -9 -r \
 			../koreader-kindle-$(MACHINE)-$(VERSION).zip \
 			extensions koreader launchpad \
-			-x "koreader/resources/fonts/*" "koreader/resources/icons/src/*" "koreader/spec/*"
+			-x "koreader/resources/fonts/*" \
+			"koreader/resources/icons/src/*" "koreader/spec/*"
 	# @TODO write an installation script for KUAL   (houqp)
 
 koboupdate: all
@@ -119,11 +122,17 @@ koboupdate: all
 		zip -9 -r \
 			../koreader-kobo-$(MACHINE)-$(VERSION).zip \
 			KoboRoot.tgz koreader koreader.png README_kobo.txt \
-			-x "koreader/resources/fonts/*" "koreader/resources/icons/src/*" "koreader/spec/*"
+			-x "koreader/resources/fonts/*" \
+			"koreader/resources/icons/src/*" "koreader/spec/*"
 
-androidupdate:
-	cd $(INSTALL_DIR)/koreader && \
-		7z a -l -mx=5 ../koreader-g$(REVISION).7z *
+androidupdate: all
+	mkdir -p $(ANDROID_LAUNCHER_DIR)/assets/module
+	-rm $(ANDROID_LAUNCHER_DIR)/assets/module/koreader-*
+	cd $(INSTALL_DIR)/koreader && 7z a -l -mx=3 \
+		../../$(ANDROID_LAUNCHER_DIR)/assets/module/koreader-g$(REVISION).7z *
+
+androiddev: androidupdate
+	$(MAKE) -C $(ANDROID_LAUNCHER_DIR) dev
 
 pot:
 	$(XGETTEXT_BIN) reader.lua `find frontend -iname "*.lua"` \

frontend/dbg.lua

@@ -1,4 +1,5 @@
 local DocSettings = require("docsettings") -- for dump method
+local isAndroid, android = pcall(require, "android")
 
 local Dbg = {
     is_on = false,
@@ -16,7 +17,11 @@ local function LvDEBUG(lv, ...)
             line = line .. " " .. tostring(v)
         end
     end
-    print("#"..line)
+    if isAndroid then
+        android.LOGI("#"..line)
+    else
+        print("#"..line)
+    end
 end
 
 function Dbg_mt.__call(dbg, ...)
@@ -27,8 +32,10 @@ function Dbg:turnOn()
     self.is_on = true
 
     -- create or clear ev log file
-    os.execute("echo > ev.log")
-    self.ev_log = io.open("ev.log", "w")
+    if not isAndroid then
+        os.execute("echo > ev.log")
+        self.ev_log = io.open("ev.log", "w")
+    end
 end
 
 function Dbg:logEv(ev)

frontend/ui/device.lua

@@ -97,7 +97,7 @@ function Device:isKindle2()
 end
 
 function Device:isKobo()
-    return string.find(self:getModel(),"Kobo_") == 1
+    return string.find(self:getModel() or "", "Kobo_") == 1
 end
 
 function Device:hasNoKeyboard()

frontend/ui/input.lua

@@ -4,7 +4,6 @@ local Event = require("ui/event")
 local TimeVal = require("ui/timeval")
 local Screen = require("ui/screen")
 local Math = require("optmath")
-local Dbg = require("dbg")
 local DEBUG = require("dbg")
 local _ = require("gettext")
 
@@ -286,11 +285,11 @@ function Input:init()
             input.open("fake_events")
         end
         if dev_mod == "KindlePaperWhite" then
-            print("Auto-detected Kindle PaperWhite")
+            DEBUG("Auto-detected Kindle PaperWhite")
             Device:setTouchInputDev("/dev/input/event0")
             input.open("/dev/input/event0")
         elseif dev_mod == "KindlePaperWhite2" then
-            print("Auto-detected Kindle PaperWhite")
+            DEBUG("Auto-detected Kindle PaperWhite")
             Device:setTouchInputDev("/dev/input/event1")
             input.open("/dev/input/event1")
         elseif dev_mod == "KindleTouch" then
@@ -314,17 +313,11 @@ function Input:init()
                 end
                 return ev
             end
-            print("Auto-detected Kindle Touch")
-        elseif Device:isKobo() then
-            local firm_rev = Device:getFirmVer()
-            input.open("/dev/input/event1")
-            Device:setTouchInputDev("/dev/input/event1")
-            input.open("/dev/input/event0") -- Light button and sleep slider
-            print("Auto-detected Kobo")
-            print("Device model=", dev_mod)
-            print("Firmware revision", firm_rev)
-            print("Screen width =", Screen:getWidth())
-            print("Screen height =", Screen:getHeight())
+            DEBUG("Auto-detected Kobo")
+            DEBUG("Device model=", dev_mod)
+            DEBUG("Firmware revision", firm_rev)
+            DEBUG("Screen width =", Screen:getWidth())
+            DEBUG("Screen height =", Screen:getHeight())
             self:adjustKoboEventMap()
             if dev_mod ~= 'Kobo_trilogy' then
                 function Input:eventAdjustHook(ev)
@@ -374,22 +367,23 @@ function Input:init()
                 end
             end
         elseif dev_mod == "Kindle4" then
-            print("Auto-detected Kindle 4")
+            DEBUG("Auto-detected Kindle 4")
             input.open("/dev/input/event1")
             self:adjustKindle4EventMap()
         elseif dev_mod == "Kindle3" then
-            print("Auto-detected Kindle 3")
+            DEBUG("Auto-detected Kindle 3")
             input.open("/dev/input/event1")
             input.open("/dev/input/event2")
         elseif dev_mod == "KindleDXG" then
-            print("Auto-detected Kindle DXG")
+            DEBUG("Auto-detected Kindle DXG")
             input.open("/dev/input/event1")
         elseif dev_mod == "Kindle2" then
-            print("Auto-detected Kindle 2")
+            DEBUG("Auto-detected Kindle 2")
             input.open("/dev/input/event1")
+        elseif util.isAndroid() then
+            DEBUG("Auto-detected Android")
         else
-            print("Not supported device model!")
-            os.exit(-1)
+            DEBUG("Not supported device model!")
         end
     end
 
@@ -711,8 +705,8 @@ function Input:waitEvent(timeout_us, timeout_s)
     end
 
     if ok and ev then
-        if Dbg.is_on and ev then
-            Dbg:logEv(ev)
+        if DEBUG.is_on and ev then
+            DEBUG:logEv(ev)
         end
         ev = self:eventAdjustHook(ev)
         if ev.type == EV_KEY then