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Old 04-08-2013, 06:06 PM   #1
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pillowHelper - access to nativeBridge from mesquite

The file is also located here: https://github.com/PaulFreund/WebLau...illowHelper.js

It is used in WebLaunch and I hope it can help somebody

PHP Code:
/*##############################################################################
//
// pillowHelper.js - Library for mesquite apps requiring more capabilities
//                    - Version 1.1
//
//##############################################################################

//==============================================================================
// Exposed API 
//==============================================================================

pillowHelper.Run                                // Run function as Pillow
pillowHelper.RegisterStatusBarEventCallback        // Register for system events
pillowHelper.UnRegisterStatusBarEventCallback    // Unregister from system events
pillowHelper.RequestStatusBarEvent                // Request specific system event

//==============================================================================
// pillowHelper.Run - Run functions in the scope of a a pillow application 
//==============================================================================

//------------------------------------------------------------------------------
// Arguments 
//------------------------------------------------------------------------------

* appID has to be the id of the mesquite app currently running 
* fkt can be a string with javascript expressions or a real javascript function
* callback has one argument which is the return value of the supplied function

//------------------------------------------------------------------------------
// Information
//------------------------------------------------------------------------------

* Return values will be automatically converted to strings
* You can not access external variables inside the function supplied to fkt

//------------------------------------------------------------------------------
// Example
//------------------------------------------------------------------------------

pillowHelper.Run(
    'default_status_bar',
    'com.PaulFreund.WebLaunch',
    function() 
    {
        // Get the Screen saver prevention status
        return nativeBridge.getIntLipcProperty(
            'com.lab126.powerd', 
            'preventScreenSaver'
        );
    }, 
    function(retVal) {
        document.write('preventScreenSaver is set to '+retVal+'<br>');
    }
);

//==============================================================================
// pillowHelper.RegisterStatusBarEventCallback 
// pillowHelper.UnRegisterStatusBarEventCallback 
//==============================================================================

//------------------------------------------------------------------------------
// Arguments 
//------------------------------------------------------------------------------

* appID has to be the id of the mesquite app currently running 
* callback has one argument which is the return value of the supplied function.
  Only RegisterStatusBarEventCallback has this argument

//------------------------------------------------------------------------------
// Information
//------------------------------------------------------------------------------

* IMPORTANT!, call pillowHelper.UnRegisterStatusBarEventCallback(appID)
  before exiting the app, or else dbus will complain. This is really IMPORTANT!
* Call this function once, it will call the supplied callback for ALL events
* Events most likely have to be defined in DBUS

//------------------------------------------------------------------------------
// Example
//------------------------------------------------------------------------------

pillowHelper.RegisterStatusBarEventCallback(
    'com.PaulFreund.WebLaunch', 
    function(value) 
    {
        document.write(JSON.stringify(value));
    }
);

// Later when you close the app, this is very IMPORTANT
pillowHelper.UnRegisterStatusBarEventCallback('com.PaulFreund.WebLaunch');

//==============================================================================
// pillowHelper.RequestStatusBarEvent 
//==============================================================================

//------------------------------------------------------------------------------
// Arguments 
//------------------------------------------------------------------------------

* appID has to be the id of the mesquite app currently running 
* eventAppID has to be the name of an app you want to catch events from
* eventID has to be the message name you want to catch

//------------------------------------------------------------------------------
// Information
//------------------------------------------------------------------------------

* This works only with a registered callback (RegisterStatusBarEventCallback)
* Events most likely have to be defined in DBUS

//------------------------------------------------------------------------------
// Example
//------------------------------------------------------------------------------

pillowHelper.RequestStatusBarEvent(
    'com.PaulFreund.WebLaunch', 
    'org.freedesktop.DBus', 
    'NameOwnerChanged'
);

//==============================================================================
// Additional information
//==============================================================================

//------------------------------------------------------------------------------
// Available nativeBridge methods ( from /usr/lib/libpillow.so )
//------------------------------------------------------------------------------

devcapInitialize, raiseChrome, dismissChrome, devcapGetInt, devcapIsAvailable,
accessHasharrayProperty, getIntLipcProperty, showDialog, setLipcProperty, 
logString, setIntLipcProperty, getOrientationValue, getDynamicConfigValue,
devcapGetString, getAppId, getStringLipcProperty, messagePillowCase, 
setWindowTitle, setWindowPosition, getWindowPosition, hideKb, showKb, 
setAcceptFocus, hideMe, showMe, setWindowSize, registerEventsWatchCallback,
subscribeToEvent, cancelPendingDismiss, registerClientParamsCallback, dismissMe,
clearFlashTrigger, createFlashTrigger, flash, redraw, logTime, logDbgNum, 
logDbg, dbgCmd

//------------------------------------------------------------------------------
// Tested methods with parameters
//------------------------------------------------------------------------------

* showMe() - Set the supplied pillow visible (useful for default_status_bar)
* hideMe() - Set the supplied pillow invisible (useful for default_status_bar)
* showKb() - Show the keyboard
* hideKb() - Hide the keyboard

* getIntLipcProperty(appID, propertyName)           - Returns a integer property
* getStringLipcProperty(appID, propertyName)        - Returns a string property
* setLipcProperty(appID, propertyName, valueString) - Set property with string
* setIntLipcProperty(appID, propertyName, valueInt) - Set proprety with int


* registerEventsWatchCallback(cb)   - Set a function that will be called 
                                      when a registered event fires, 
                                      first argument of callback gets value
* subscribeToEvent(appID, eventID)  - Add a event that triggers the function
                                      supplied to registerEventsWatchCallback

* dbgCmd(command) -    Execute command, mainly from 
                    /usr/share/webkit-1.0/pillow/debug_cmds.json

//------------------------------------------------------------------------------
// Notes
//------------------------------------------------------------------------------

Special thanks go to mobileread.com, especially silver18 and eureka for 
discovering a lot of the functionality I'm using

##############################################################################*/

var pillowHelper = {};

//==============================================================================
pillowHelper.Run = function(pillowIDappIDfktcallback)
{
    
//--------------------------------------------------------------------------
    // Get function string to use (supplied function object or string )
    
var fktString '';
    if( 
fkt && {}.toString.call(fkt) === '[object Function]' )
        
fktString fkt.toString();
    else
        
fktString "function(){" fkt "}";
        
    
//--------------------------------------------------------------------------
    // Empty function, exit
    
if( fktString === undefined || fktString.length <= ) return;
    
    
//--------------------------------------------------------------------------
    // Get a (at least a little bit) unique key
    
var cmdKey Math.floor((Math.random()*10000000000)).toString();

    
//--------------------------------------------------------------------------
    // Build the command we send to pillow
    
var cmdVal=    "nativeBridge.setLipcProperty('"+appID+"','"+cmdKey+"'," +
                    
"function(){" +
                        
"try{" +
                            
"return " fktString "().toString();" 
                        
"}" +
                        
"catch(err){" 
                            
"return err;" 
                        
"}" +
                    
"}()" +
                
");";
    
    
//--------------------------------------------------------------------------
    // Strip all non-wanted whitespace characters from command
    //cmdVal = cmdVal.replace(/[\t\r\n]+/g, "");

    //--------------------------------------------------------------------------
    // Register event handler for the callback if callback is defined
    
if( callback && {}.toString.call(callback) === '[object Function]' )
    {
        
kindle.messaging.receiveMessage(cmdKey, function(messagevalue
        { 
            
callback(value); 
        });                    
    }
    
    
//--------------------------------------------------------------------------
    // Send pillow the message to execute supplied code
    
kindle.messaging.sendMessage(
        
'com.lab126.pillow'
        
'interrogatePillow'
        {
            
"pillowId"pillowID
            
"function"cmdVal
        
}
    );
}

//==============================================================================
pillowHelper.RegisterStatusBarEventCallback = function(appIDcallback)
{
    
kindle.messaging.receiveMessage(
        
'persistantCallback'
        function(
messagevalue
        {
            
callback(JSON.parse(value));
        }
    );
    
    
pillowHelper.Run(
        
'default_status_bar',
        
appID,
        
"\
            if( document.body.persistantCallback !== undefined ) \n\
                return; \n\
            \n\
            document.body.persistantCallback = function(a)\n\
            {\n\
                StatusBar.eventsCallback(a);\n\
                nativeBridge.setLipcProperty(\n\
                    '" 
appID "',\n\
                    'persistantCallback',\n\
                    JSON.stringify(a)\n\
                );\n\
            };\n\
            nativeBridge.registerEventsWatchCallback(\n\
                document.body.persistantCallback\n\
            );\n\
        "
    
);    
}

//==============================================================================
pillowHelper.UnRegisterStatusBarEventCallback = function(appID)
{
    
pillowHelper.Run(
        
'default_status_bar',
        
appID,
        function()
        {
            
// Set back to default handler 
            
nativeBridge.registerEventsWatchCallback(StatusBar.eventsCallback);     
            
            
// Undefine our persistantCallback
            
document.body.persistantCallback undefined;
        }
    );    
}

//==============================================================================
pillowHelper.RequestStatusBarEvent = function(appIDeventAppIDeventID)
{
    
pillowHelper.Run(
        
'default_status_bar',
        
appID,
        
"nativeBridge.subscribeToEvent('" eventAppID "', '" eventID "');"
    
);


Last edited by PaulFreund; 04-09-2013 at 03:39 PM. Reason: Removed unnecessary function
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Old 04-09-2013, 07:27 AM   #2
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Good work!!!
I don't have much time right now (I'm going to graduate in 2 weeks) but I plan to use this in Komic!
Thanks a lot!!!!
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Old 04-09-2013, 03:20 PM   #3
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Just wanted to say this is a new version (1.1) including event registering features as described here
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Old 04-09-2013, 03:53 PM   #4
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Shiny colors!! Hot content!

What more could we ask from a poster. NICE
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Old 11-03-2013, 12:09 PM   #5
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Does anybody know how to use nativeBridge.setWindowPosition command?
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Old 11-03-2013, 01:56 PM   #6
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setWindowPosition(x, y)
setWindowSize(width, height)
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Old 11-03-2013, 02:25 PM   #7
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mmh I've tried the first...but seems to not work for custom dialogs
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Old 11-03-2013, 02:35 PM   #8
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They are managed by the logic in the LUA layer I believe. I.E. centered.
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Old 11-03-2013, 02:42 PM   #9
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Maybe it's just doing not what you're expecting it to do basing on name (but I don't know what it's doing either).

Don't forget also about possible role of window manager (awesome). It... uhm... manages windows (position etc.) and can ignore any requests.
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Old 11-03-2013, 03:01 PM   #10
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i use that xwininfo trick: "xwininfo -tree -root | more" to see what windows are loaded by name
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Old 11-03-2013, 03:29 PM   #11
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Quote:
Originally Posted by twobob View Post
They are managed by the logic in the LUA layer I believe. I.E. centered.
Seems so...
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