FaziBear

from rubyforge to github

2009-11-23T16:45:00.000+01:00

Finally I moved my rubyforge repositories to github and gems to gemcutter.org:

RDoc documentation is now on rdoc.info:

It was quite easy. But there is necessary to use jeweler ? The only thing I need is gemspec file. Build and push are made by gem. There is any thiny tool that can manage version and gemspec files ?

My Player 2.0

2009-11-13T11:46:00.002+01:00

Do you remember My Music Player ? I still hate myspace sites! Unfortunately AppJet hosting go down, but... Heroku comes in. My Player 2.0 is new webapp, is completly writen in Ruby and Sinatra framework.
Once again ...

Want use it ?

Go for it here or take a look at source code at github.

What's wrong with merb ?

2009-02-23T21:31:00.003+01:00

If you get this ...
FATAL: The gem data_objects (= 0.9.11, runtime), [] was not found
... try this ...
sudo gem install launchy
... and everything will be fine ...

Processing Mac Sudden Motion Sensor with RubyInline

2008-12-08T16:11:00.018+01:00


require 'rubygems'
require "inline"
class SMS
  class << self
    inline do |builder|
      builder.add_compile_flags '-x objective-c', '-framework IOKit'
      builder.include "<IOKit/IOKitLib.h>"    
      builder.c %q{
        VALUE values(){

          struct data {
            unsigned short x;
            unsigned short y;
            unsigned short z;
            char pad[34];
          };

          kern_return_t result;

          mach_port_t masterPort;
          IOMasterPort(MACH_PORT_NULL, &masterPort);
          CFMutableDictionaryRef matchingDictionary = IOServiceMatching("SMCMotionSensor");
          
          io_iterator_t iterator;
          result = IOServiceGetMatchingServices(masterPort, matchingDictionary, &iterator);
          
          if(result != KERN_SUCCESS) {
            return rb_str_new2("Error");
          }

          io_object_t device = IOIteratorNext(iterator);
          IOObjectRelease(iterator);
          if(device == 0){
            return rb_str_new2("Error");
          }

          io_connect_t dataPort;
          result = IOServiceOpen(device, mach_task_self(), 0, &dataPort);
          IOObjectRelease(device);

          if(result != KERN_SUCCESS) {
            return rb_str_new2("Error");
          }

          IOItemCount structureInputSize;
          IOByteCount structureOutputSize;

          struct data inputStructure;
          struct data outputStructure;
          structureInputSize = sizeof(struct data);
          structureOutputSize = sizeof(struct data);

          memset(&inputStructure, 1, sizeof(inputStructure));
          memset(&outputStructure, 0, sizeof(outputStructure));

          result = IOConnectMethodStructureIStructureO(
            dataPort,
            5,
            structureInputSize,
            &structureOutputSize,
            &inputStructure,
            &outputStructure
          );

          if(result != KERN_SUCCESS) {
            return rb_str_new2("Error");
          }

          IOServiceClose(dataPort);

          VALUE coords = rb_ary_new2(3);
          rb_ary_store(coords, 0, INT2FIX(outputStructure.x));
          rb_ary_store(coords, 1, INT2FIX(outputStructure.y));
          rb_ary_store(coords, 2, INT2FIX(outputStructure.z));

        return coords;
        }
      }
    end
  end
end
loop do
  x,y,z = SMS.values
  puts "#{x} #{y} #{z}"
end

Include helpers in controllers

2008-06-05T13:59:00.008+02:00

Yes, i know!

Helpers are modules that provide methods which are automatically usable in your view.

But somtimes you want to use it in controllers ;)
This is my solution. Helpers are available in module named 'Helpers', so they don't brake anything. All rails helpers and named routes are included by default.
This is simple usage:


class ExampleController < ApplicationController
  include_helper ApplicationHelper, PicturesHelper

  def show
   ...
   flash[:notice] = Helpers::flash_with_picture('Hello from helper')
   ...
  end
end

And method to add to ApplicationController class.


class ApplicationController < ActionController::Base
  def self.include_helper(*args)
    require 'action_controller/integration'
    class_eval do
      helpers = const_defined?('Helpers') ? const_get('Helpers') : Module.new do
        @@controller = ActionController::Integration::Session.new
        def self.method_missing(method, *args, &block)
          if @@controller && method.to_s =~ /_path$|_url$/
            @@controller.send(method, *args, &block)
          else
            raise NoMethodError, "undefined method `#{method}' for #{self}"
          end
        end
      end
      ActionView::Helpers.constants.each do |constant|
        helpers.extend ActionView::Helpers.const_get(constant) if ActionView::Helpers.const_get(constant).instance_of?(Module)
      end
      if args.instance_of?(Array)
        args.each do |helper|
          helpers.extend helper if helper.instance_of?(Module)
        end
      elsif args.instance_of?(Module)
        helpers.extend args
      end
      const_set( 'Helpers', helpers ) unless const_defined?('Helpers')
    end
  end
end

GEdit With Multi Terminal

2008-04-29T15:46:00.008+02:00

GEdit is nice developer editor for GNOME. Textmate like snippets, file browser and embedded terminal. Last one is a nice feature, but default plugin gives you only one terminal. But wait, plugins are written in python. This is my third attempt to modify python code... It was not so bad, after few print(), dir(), and id() I can add and remove terminal windows within gedit :)

How to install ? Copy all files to ~/.gnome2/gedit/plugins, disable terminal plugin, restart gedit and enable mterminal plugin.

How to use it ? To add new terminal right-click on terminal window and choose 'New Terminal'. If you want to remove it, right-click and choose 'Remove Terminal'.

~~Plugin/Sources are located here.~~

I hope you like it.

This plugin is now on github

UWA Google Suggest

2008-03-14T13:54:00.003+01:00

Google Suggest is now UWA style widget. Check this out.

Id of nil object

2008-03-07T14:52:00.005+01:00


nil.id == 4 # => true

Sweet truth ;)

Generating Methods in Ruby

2008-02-29T12:24:00.009+01:00

I was trying to find a way for generating dynamic methods.
My first attempt was very ugly and use a simple eval:


class DynamicMethods
  %w{ one two three }.each do |z|
    eval "def #{z}(param) puts 'Hello from \\'#{z}\\' method with \\''+param+'\\' param' end"
  end
end

Hmm... no... all this escape characters ... there must be a better way. And there is. Using %Q{} ...


class DynamicMethods
  %w{ one two three }.each do |z|
    eval %Q{
      def #{z}(param)
        puts "Hello form '#{z}' method with '\#{param}' param"
      end
    }
  end
end

That's better ... more readable, but i don't have syntax highligt for this whole string. Lets try define_method ...


class DynamicMethods
  %w{ one two three }.each do |z|
    define_method z do |param|
      puts "Hello from '#{z}' method with '#{param}' param"
    end
  end
end

There it is. No eval, no big strings, just a method name and code block. Beautful. All examples give you same output.


DynamicMethods.new.one("hello") # => Hello from 'one' method with 'hello' param

My Music Player

2008-02-27T13:57:00.009+01:00

Another application written in javasctipt, using AppJet solution. This one is simple application for browsing myspace music profiles and listen music. Big different is that you don't need to wait for whole ugly myspace page. Type band name, click search and press play on player :) Easy ? Take a look under player, there are similar artists. This might be helpful.

~~Want use it ? Go for it here or take a look at source code~~.

AppJet is down, there is a new version here.

UWA Quick Translator

2008-02-18T21:18:00.003+01:00

Quick translator is now available on UWA platform.
Check it now here. ;)

UWA Netvibes Customize

2008-02-18T19:31:00.004+01:00

Netvibes Cutomize widget is now available in UWA api. It works only in Netvibes environment, using it in any other just makes no sense ;)
If you find any bugs write about it on Netvibes Developers Forum in this thread.
I hope you like it.

Metal Releases ICalendar v2

2008-02-10T16:28:00.003+01:00

Here is new version of icalendar feed. This version is written in javascript. Now is hosted by AppJet.

AppJet is the easiest way to create a web app. Just type some code into a box, and we'll host your app on our servers.

Feed is available here.
You should also check out sample calendar and source code.

Echo2 with JRuby

2008-01-14T12:16:00.000+01:00

I want to play with jruby, and I rewrite a numberguess example application from Echo2 framework into Ruby using JRuby.
Let's see...
First we need to rewrite a NumberGuessServlet to load a NumberGuessApp ruby class instead of java class.


public class NumberGuessServlet extends WebContainerServlet {

    Ruby runtime = Ruby.getDefaultInstance();

    public NumberGuessServlet() {
      super();

      StringBuffer script = new StringBuffer();
      URL url = NumberGuessServlet.class.getResource("NumberGuessApp.rb");
      URI uri;

      try {
        uri = new URI(url.getFile());
        File file = new File(uri.getPath());

        BufferedReader fin = new BufferedReader(new FileReader(file));
        String line = null;

        while ((line = fin.readLine()) != null) {
          script.append(line+"\n");
        }
        fin.close();

      } catch (URISyntaxException e) {
          e.printStackTrace();
      } catch (ArrayIndexOutOfBoundsException e){
          e.printStackTrace();
      } catch (IOException e){
          e.printStackTrace();
      }

      try {
        runtime.evalScript(script.toString());
      } catch (Exception e) {
        e.printStackTrace();
      }

    }


    /**
     * @see nextapp.echo2.webcontainer.WebContainerServlet#newApplicationInstance()
     */
    public ApplicationInstance newApplicationInstance() {

      Object numberGuessApp = runtime.evalScript("NumberGuessApp.new");
      numberGuessApp = org.jruby.javasupport.JavaEmbedUtils.rubyToJava(runtime,
                (org.jruby.runtime.builtin.IRubyObject) numberGuessApp, ApplicationInstance.class);

      return (ApplicationInstance) numberGuessApp;
    }

}

Now we have to write a ruby class.
Create a NumberGuessApp.rb and include a Java magic


include Java

This make all Java stuff avaiable in ruby.
Next we need to include Echo2 stuff.


module Echo2
  include_class 'nextapp.echo2.app.ApplicationInstance'
  include_class 'nextapp.echo2.app.Button'
  include_class 'nextapp.echo2.app.Color'
  include_class 'nextapp.echo2.app.ContentPane'
  include_class 'nextapp.echo2.app.Extent'
  include_class 'nextapp.echo2.app.Insets'
  include_class 'nextapp.echo2.app.Label'
  include_class 'nextapp.echo2.app.ResourceImageReference'
  include_class 'nextapp.echo2.app.Column'
  include_class 'nextapp.echo2.app.TextField'
  include_class 'nextapp.echo2.app.Window'
  include_class 'nextapp.echo2.app.event.ActionEvent'
  include_class 'nextapp.echo2.app.event.ActionListener'
  include_class 'nextapp.echo2.app.layout.ColumnLayoutData'
end

This makes all Echo2 lib namespaced. Don't forget to prefix Echo2 classes with Echo2::.
Next big thing is casts. We can't make a cast in ruby. But we can make something like this.
We need a NumberGuessApp instance, lets make a simple method that return it:


class NumberGuessApp < Echo2::ApplicationInstance
  def self.instance
    @@instance
  end

  def init
    @@instance = self
  end
end

now instead of this:


((NumberGuessApp) ApplicationInstance.getActive())

we can write:


NumberGuessApp.instance

getActive() method propably do something more, but this is enough for this app.
Nice feature of JRuby is that we can change all method and variables names to fit ruby style, don't need to use any setters and getters.
For example you can write:


@window.title = "Echo2 Guess-A-Number"
layout_column.cell_spacing = Echo2::Extent.new(10)
submit_button.add_action_listener(self)

But there is one problem. All methods that overrides included interfaces need to have a java names:


def actionPerformed(event)
end

Take a look at CongratulationsPane. Constructor have an argument, but it's don't want to work with jruby. We have to delete it. There will be no information about number of tries on congratulation screen. Sorry :)
All variables are initialized in constructor (initialize method). For example:


  def initialize

    #
    # Randomly generated number between 1 and 100 inclusive.
    #
    @random_number = rand 100
  end

Static variables like colors should looks like this:


@guess_entry_field.foreground = Echo2::Color::WHITE

All source files are here.
If you want to run it download all required jar files and copy it to lib.

JRuby 1.0.3
Servlet Api 2.4
Echo2_App.jar
Echo2_WebContainer.jar
Echo2_WebRender.jar

Echo2 files are from echo2 package.
Start ant.
Copy a war file into your application server and launch it.

CodePress Addons

2008-01-03T16:40:00.002+01:00

I was playing around with CodePress. There are some modification I made:
This one updates all textareas fields when form is submited, and fix the problem with rails javascript tag hepler.


CodePress.run = function() {

  s = document.getElementsByTagName('script');

  for(var i=0,n=s.length;i    if(s[i].src.match('codepress.js')) {

      CodePress.path = s[i].src.replace(/codepress.js.*$/,'');

    }

  }

  t = document.getElementsByTagName('textarea');

  for(var i=0,n=t.length;i    if(t[i].className.match('codepress')) {

      id = t[i].id;

      t[i].id = id+'_cp';

      eval(id+' = new CodePress(t[i])');

      t[i].parentNode.insertBefore(eval(id), t[i]);

    }

  }

  f = document.getElementsByTagName('form');

  for(var i=0,n=f.length;i    cps = f[i].getElementsByClassName('codepress');

    if(cps.length > 0){

      f[i].cps = cps;

      f[i].onsubmit = function(){

        for(var i=0;i          this.cps[i].value = eval(this.cps[i].id.replace('_cp','')+'.getCode()');

          this.cps[i].disabled = false;

        };

      }

    }

  }

}

I also update a little syntax highlight for Ruby language:


/*

* CodePress regular expressions for Ruby syntax highlighting

*/

// Ruby

Language.syntax = [

  { input : /\"(.*?)(\"|
|<\/P>)/g, output : '"$1$2' }, // strings double quote

  { input : /\'(.*?)(\'|
|<\/P>)/g, output : '\'$1$2' }, // strings single quote

  { input : /([\$\@\%]+)([\w\.]*)/g, output : '$1$2' }, // vars

  { input : /\|(.*?)(\||
|<\/P>)/g, output : '|$1$2' }, // block vars

  { input : /(def\s+)([\w\.]*)/g, output : '$1$2' }, // functions

  { input : /\b(alias|and|BEGIN|begin|break|case|class|def|defined|do|else|elsif|END|end|ensure|false|for|if|in|module|next|nil|not|or|redo|rescue|retry|return|self|super|then|true|undef|unless|until|when|while|yield)\b/g, output : '$1' }, // reserved words

  { input  : /([\(\){}])/g, output : '$1' }, // special chars

  { input  : /#(.*?)(
|<\/P>)/g, output : '#$1$2' }, // comments

  { input  : /#(.*?)(
|<\/P>)/g, output : '#$1$2' }, // comments

  { input  : /\b(Array|Bignum|Binding|Class|Continuation|Dir|Exception|FalseClass|File|Fixnum|Fload|Hash|Integer|IO|MatchData|Method|Module|NilClass|Numeric|Object|Proc|Range|Regexp|String|Symbol|ThreadGroup|Thread|Time|TrueClass)\b/g, output : '$1' } // buildins

];

Language.snippets = []

Language.complete = [

  { input : '\'',output : '\'$0\'' },

  { input : '"', output : '"$0"' },

  { input : '(', output : '\($0\)' },

  { input : '[', output : '\[$0\]' },

  { input : '{', output : '{$0}' }    

]

Language.shortcuts = []

Ivo Reader

2007-09-17T15:43:00.000+02:00

This is a ruby rewrite of ivonka.sh script. This simple script read data from standard input or command line parameters using say.expressivo.com text to speech reader.

Features:

english language (default)
male and female polish voice
romanian language
files are player directly from internet
mplayer as default player

Script can be downloaded from here.

Simple usage:
# ivo.rb "This is simple text"
# echo "simple text" | ivo.rb
# cat somefile.txt | ivo.rb

Configuration:
DEFAULT_LANGUAGE - default language
PLAYER - filename of mp3 player.
SLEEP - time between http requests in seconds (something about 0.5s)
SLEEP_ON_FAIL - time after failed http request (it should be something about 1s)
MAX_TEXT_LENGTH - lenght that can be converted at one request (for now in 200)

To change reader language, pass a language symbol as parameter while creating ivo object.


ivo = Ivo.new :PL #for polish
ivo = Ivo.new :PLM #for polish male voice
ivo = Ivo.new :PLF #for polish female voice
ivo = Ivo.new :RO #for romanian

Blogger Syntax Highlighter

2007-09-03T15:42:00.000+02:00

My syntax highligter widget for blogger is avaiable. It's based on SyntaxHighlighter 1.5.1.
Package include all compressed code and brushes, works in blogger mode. This script also handle older/newer posts links.
To add it check out this page.
For usage information visit this wiki page.

Update:
All _WidgetManager magic was removed. It's simply don't work for now. Next and previous post don't use XHR. If you have any javascript errors with _WidgetManager remove this widget and add once again.

Ruby Projects Updates

2007-08-11T13:45:00.001+02:00

GRuby 0.2.1

added gruby.rb file

colorize 0.5.6

added effects methods
new readme files
new rake file

GRuby 0.2.0

2007-08-05T17:23:00.001+02:00

New version of gruby gem uploaded to rubyforge repository.
Changes:

uri-open instead of socket in connection_params method
few callback added
readme files
new rake file

Documentation is avaiable here.
As always you can install it with:
# gem install GRuby

iGoogle Customize

2007-08-03T21:11:00.000+02:00

I just made an iGoogle module. Now you can make some customization of your page. Add it here.

Netvibes Modules Are Unavaiable

2007-06-18T17:50:00.001+02:00

Sorry, all my netvibes modules are temporarily unavailable because traffic limits per month:

Total Available Traffic: 4096 MB (4294967296 Bytes)
Total Used Traffic: 4125 MB (4325182876 Bytes)

They will return next month, or maybe earlier if I find new hosting.
Be patient, Sorry.
~~Right now all modules are moved here: http://fazibear.ifastnet.com/netvibes/*.xhtml example: http://fazibear.ifastnet.com/netvibes/customize.xhtml~~
All modules are moved here: http://netvibes.atspace.com example: http://netvibes.atspace.com/customize.html
This hosting should be better, they offer

Free UNLIMITED Traffic
99.8% Uptime Guarantee
Ultra Fast Network

we will see ...

Netvibes Quick Translator Fixed

2007-06-13T08:57:00.000+02:00

Quick Translator widget fixed. Now just works ;)

Clear Terminal Window with Ruby

2007-05-31T01:20:00.001+02:00

Clean and simple :)
Works only on *nix systems


CLEAR = `clear`
print CLEAR

File.modify!

2007-05-09T19:18:00.001+02:00

Here is a little ruby File class method called modify!. This simple method allows you to invoke a block on file content - array of chomped lines.
This beautiful method looks like this ;)


class File
  def self.modify!( filename, &block )
    file = open( filename, 'r+' )
    lines = file.readlines.collect! do |line|
      line.chomp
    end
    yield lines
    file.pos = 0
    file.print(lines.join("\n"))
    file.truncate(file.pos)
    file.close
  end
end

and it can be use it like this:


File.modify!('somefile.txt') do |lines|
  lines.collect! do |line|
    line.upcase+"!"
  end
  lines << "new line"
end

For now it's too small to make a gem. But maybe I'll add some similar object methods, who knows ;)

Ruby Colorized Console

2007-04-22T12:58:00.001+02:00

I wrote a simple ruby string class extension to displays console colors easier using ANSI escape sequences.
Links for project page, and documentation page.
Install:
# gem install colorize
Some examples:

puts "This is blue".colorize( :blue )
puts "This is light blue".colorize( :light_blue )
puts "This is also blue".colorize( :color => :blue )
puts "This is blue with red background".colorize( :color => :light_blue, :background => :red )
puts "This is blue with red background".colorize( :light_blue ).colorize( :background => :red )
puts "This is blue text on red".blue.on_red
puts "This is red on blue".colorize( :red ).on_blue
puts "This is uncolorized".blue.on_red.uncolorize

This thing should work in Windows too, but its untested. So if you check it out, please give me some feedback.