git.zerfleddert.de Git - ms2-fixes/blob - MS2Debounce/src/de/rmdir/ms2debounce/DebounceModuleHelper.java

   1 package de.rmdir.ms2debounce;
   2
   3 import java.io.InputStream;
   4 import java.io.OutputStream;
   5 import java.io.File;
   6
   7 import android.content.Context;
   8
   9 public class DebounceModuleHelper
  10 {
  11         private Context ctx;
  12
  13         public DebounceModuleHelper(Context context) {
  14                 ctx = context;
  15         }
  16
  17         public void loadModule() {
  18                 loadModule(10);
  19         }
  20
  21         public void loadModule(int delay) {
  22                 File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko");
  23
  24                 extractModule();
  25
  26                 // FIXME: Read settings from database...
  27
  28                 try {
  29                         Process insmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/insmod " + debounce_ko + " debounce_delay=" + delay});
  30                         insmod.waitFor();
  31                 } catch (Exception e) {}
  32         }
  33
  34         public void unloadModule() {
  35                 try {
  36                         Process rmmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/rmmod debounce"});
  37                         rmmod.waitFor();
  38                 } catch (Exception e) {}
  39         }
  40
  41         public boolean isLoaded() {
  42                 return false;
  43         }
  44
  45         public int getDelay() {
  46                 return 10;
  47         }
  48
  49         private synchronized void extractModule() {
  50                 File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko");
  51
  52                 if (debounce_ko.exists()) {
  53                         return;
  54                 }
  55
  56                 try {
  57                         InputStream apk = ctx.getAssets().open("debounce.ko");
  58                         OutputStream mod = ctx.openFileOutput("debounce.ko.tmp", 0);
  59
  60                         //I assume a page is 4k...
  61                         byte buf[] = new byte[4096];
  62                         int bytes;
  63
  64                         while((bytes = apk.read(buf)) != -1) {
  65                                 mod.write(buf, 0, bytes);
  66                         }
  67
  68                         apk.close();
  69                         mod.close();
  70
  71                         File tmpfile = new File(debounce_ko + ".tmp");
  72                         tmpfile.renameTo(debounce_ko);
  73                 } catch (Exception e) {}
  74         }
  75 }