apps/hosted/notification.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2010 Thomas Martitz
  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
  22 #include <jni.h>
  23 #include <stdio.h>
  24 #include "notification.h"
  25 #include "appevents.h"
  26 #include "metadata.h"
  27 #include "misc.h"
  28
  29 extern JNIEnv *env_ptr;
  30 extern jclass RockboxService_class;
  31 extern jobject RockboxService_instance;
  32
  33 static jmethodID updateNotification;
  34 static jobject NotificationManager_instance;
  35 static jstring headline, content, ticker;
  36
  37 #define NZV(a) (a && a[0])
  38
  39 /*
  40  * notify about track change, and show track info */
  41 static void track_changed_callback(void *param)
  42 {
  43     struct mp3entry* id3 = (struct mp3entry*)param;
  44     JNIEnv e = *env_ptr;
  45     if (id3)
  46     {
  47         /* passing NULL to DeleteLocalRef() is OK */
  48         e->DeleteLocalRef(env_ptr, headline);
  49         e->DeleteLocalRef(env_ptr, content);
  50         e->DeleteLocalRef(env_ptr, ticker);
  51
  52         char buf[200];
  53         const char * title = id3->title;
  54         if (!title)
  55         {   /* pass the filename as title if id3 info isn't available */
  56             title =
  57                 strip_extension(buf, sizeof(buf), strrchr(id3->path,'/') + 1);
  58         }
  59
  60         /* do text for the notification area in the scrolled-down statusbar */
  61         headline = e->NewStringUTF(env_ptr, title);
  62
  63         /* add a \n so that android does split into two lines */
  64         snprintf(buf, sizeof(buf), "%s\n%s", id3->artist ?: "", id3->album ?: "");
  65         content = e->NewStringUTF(env_ptr, buf);
  66
  67         /* now do the text for the notification in the statusbar itself */
  68         if (NZV(id3->artist))
  69         {   /* title - artist */
  70             snprintf(buf, sizeof(buf), "%s - %s", title, id3->artist);
  71             ticker = e->NewStringUTF(env_ptr, buf);
  72         }
  73         else
  74         {   /* title */
  75             ticker = e->NewStringUTF(env_ptr, title);
  76         }
  77         e->CallVoidMethod(env_ptr, NotificationManager_instance,
  78                       updateNotification, headline, content, ticker);
  79     }
  80 }
  81
  82 void notification_init(void)
  83 {
  84     JNIEnv e = *env_ptr;
  85     jfieldID nNM = e->GetFieldID(env_ptr, RockboxService_class,
  86                     "fg_runner", "Lorg/rockbox/Helper/RunForegroundManager;");
  87     NotificationManager_instance = e->GetObjectField(env_ptr,
  88                                                 RockboxService_instance, nNM);
  89
  90     jclass class = e->GetObjectClass(env_ptr, NotificationManager_instance);
  91     updateNotification = e->GetMethodID(env_ptr, class, "updateNotification",
  92                                          "(Ljava/lang/String;"
  93                                          "Ljava/lang/String;"
  94                                          "Ljava/lang/String;)V");
  95     add_event(PLAYBACK_EVENT_TRACK_CHANGE, false, track_changed_callback);
  96 }