add json-rpc method in an addon ?

flagadajones · 2012-07-09 01:53

Hi,

I'll start an addon development and i search if it's possible in addon to develop a json-rpc method ? If the answer is Yes, is it possible to add the method in the answer of the JSONRPC.introspect method ?

thanks

**garbear** · 2012-07-10 04:05

Not currently possible. What kind of idea did you have in mind?

flagadajones · 2012-07-10 13:24

I want to create an addon which communicate with an hardware module (like arduino) and use XBMC as IR relay between an android phone (in wifi mode ) and my Audio/Video amplificator.

android --- send remote command via JSON-RPC --> xbmc ---- send IR command via Arduino ---> audio/video ampli

**garbear** · 2012-07-11 03:52

My best guess effort would be:

Code:

# defined in Key.h

ACTION_VOLUME_UP = 88

ACTION_VOLUME_DOWN = 89

class VolumeMonitorDialog(xbmcgui.WindowXMLDialog):

    def onAction(self, action):

        actionID = action.getId()

        if actionID == ACTION_VOLUME_UP:

            # Volume up

        if actionID == ACTION_VOLUME_DOWN:

            # Volume down

When you call the dialog's doModal() it will start receiving actions. Caveat: Only as long as the dialog is open.

The best way to intercept these events in the background would be a service addon that extends xbmc.Monitor (see PR#856). You would then need to use C++ to code an onAction() method for xbmc.Monitor.

If you talk with Montellese and Amet, they might suggest a better way than enhancing xbmc.Monitor, and they'd most likely have some insight as to why this currently isn't possible.

Regards,
Garrett

**garbear** · 2012-07-11 05:25

My best guess effort above was a pretty crappy solution Smile

Here's two much better options:

1. The resource-hog, delay volume change method: notice the sad face Sad

Basically, change a property (like volume) with your remote and poll that value with a service addon

Code:

class ExitMonitor(xbmc.Monitor):

    def onAbortRequested(self):

        sys.exit()

def getVolume():

    query = '{"jsonrpc": "2.0", "method": "Application.GetProperties", "params": "volume", "id": 1}' # Probably wrong

    result = xbmc.executeJSONRPC(query)

    # etc

monitor = ExitMonitor()

volume = getVolume()

while (True):

    newVolume = getVolume()

    if volume != newVolume:

        # like a g6

    volume = newVolume

    xbmc.sleep(X) # lag vs system load

2. The "hardcore" option. plain and simple, chicks dig guys who compile their own XBMC
Apply a patch: github.com/garbear/xbmc/commit/dffd96e
Compile XBMC

Code:

class VolumeMonitor(xbmc.Monitor):

    def onVolumeChanged(self, volume):

        volume = int(volume) # Too lazy to convert in C++

        # get high like planes

    def onAbortRequested(self):

        sys.exit()

flagadajones Junior Member Posts: 3 Joined: Jun 2012 Reputation: 0	2012-07-09 01:53 Post: #1 Hi, I'll start an addon development and i search if it's possible in addon to develop a json-rpc method ? If the answer is Yes, is it possible to add the method in the answer of the JSONRPC.introspect method ? thanks
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garbear Team-XBMC Developer Posts: 426 Joined: Dec 2010 Reputation: 16 Location: gangsta's paradise	2012-07-10 04:05 Post: #2 Not currently possible. What kind of idea did you have in mind? Always read the XBMC online-manual, FAQ and search the forums before posting. Do NOT e-mail Team-XBMC members asking for support. Read/follow the forum rules. For troubleshooting and bug reporting, make sure you read this first
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flagadajones Junior Member Posts: 3 Joined: Jun 2012 Reputation: 0	2012-07-10 13:24 Post: #3 I want to create an addon which communicate with an hardware module (like arduino) and use XBMC as IR relay between an android phone (in wifi mode ) and my Audio/Video amplificator. android --- send remote command via JSON-RPC --> xbmc ---- send IR command via Arduino ---> audio/video ampli
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