apps/hosted/yesno.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2010 Jonathan Gordon
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "config.h"
  22
  23 #if (CONFIG_PLATFORM&PLATFORM_ANDROID)
  24 #include <jni.h>
  25 #include <stdbool.h>
  26 #include <stdio.h>
  27 #include "yesno.h"
  28 #include "settings.h"
  29 #include "lang.h"
  30 #include "kernel.h"
  31
  32 extern JNIEnv   *env_ptr;
  33 static jclass    RockboxYesno_class = NULL;
  34 static jobject   RockboxYesno_instance = NULL;
  35 static jmethodID yesno_func;
  36 static struct wakeup    yesno_wakeup;
  37 static bool      ret;
  38
  39 JNIEXPORT void JNICALL
  40 Java_org_rockbox_RockboxYesno_put_1result(JNIEnv *env, jobject this, jboolean result)
  41 {
  42     (void)env;
  43     (void)this;
  44     ret = (bool)result;
  45     wakeup_signal(&yesno_wakeup);
  46 }
  47
  48 static void yesno_init(void)
  49 {
  50     JNIEnv e = *env_ptr;
  51     static jmethodID yesno_is_usable;
  52     if (RockboxYesno_class == NULL)
  53     {
  54         wakeup_init(&yesno_wakeup);
  55         /* get the class and its constructor */
  56         RockboxYesno_class = e->FindClass(env_ptr,
  57                                             "org/rockbox/RockboxYesno");
  58         jmethodID constructor = e->GetMethodID(env_ptr,
  59                                                RockboxYesno_class,
  60                                                "<init>", "()V");
  61         RockboxYesno_instance = e->NewObject(env_ptr,
  62                                                      RockboxYesno_class,
  63                                                      constructor);
  64         yesno_func = e->GetMethodID(env_ptr, RockboxYesno_class,
  65                                        "yesno_display", "(Ljava/lang/String;)V");
  66         yesno_is_usable = e->GetMethodID(env_ptr, RockboxYesno_class,
  67                                        "is_usable", "()Z");
  68     }
  69     /* need to get it every time incase the activity died/restarted */
  70     while (!e->CallBooleanMethod(env_ptr, RockboxYesno_instance,
  71                                  yesno_is_usable))
  72         sleep(HZ/10);
  73 }
  74
  75 jstring build_message(const struct text_message *message)
  76 {
  77     char msg[1024] = "";
  78     JNIEnv e = *env_ptr;
  79     int i;
  80     for(i=0; i<message->nb_lines; i++)
  81     {
  82         char* text = P2STR((unsigned char *)message->message_lines[i]);
  83         if (i>0)
  84             strlcat(msg, "\n", 1024);
  85         strlcat(msg, text, 1024);
  86     }
  87     /* make sure the questions end in a ?, for some reason they dont! */
  88     if (!strrchr(msg, '?'))
  89         strlcat(msg, "?", 1024);
  90     return e->NewStringUTF(env_ptr, msg);
  91 }
  92
  93 enum yesno_res gui_syncyesno_run(const struct text_message * main_message,
  94                                  const struct text_message * yes_message,
  95                                  const struct text_message * no_message)
  96 {
  97     (void)yes_message;
  98     (void)no_message;
  99     yesno_init();
 100
 101     JNIEnv e = *env_ptr;
 102     jstring message = build_message(main_message);
 103
 104     e->CallVoidMethod(env_ptr, RockboxYesno_instance, yesno_func, message);
 105
 106     wakeup_wait(&yesno_wakeup, TIMEOUT_BLOCK);
 107
 108     e->DeleteLocalRef(env_ptr, message);
 109
 110     return ret ? YESNO_YES : YESNO_NO;
 111 }
 112
 113 #endif