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  • ARM assembler in Raspberry Pi – Chapter 21

    Aug 23, 2014 • • Raspberry Pi

    We already know that ARM is a 32-bit architecture: general purpose registers are 32-bit wide and addresses in memory are 32-bit numbers. The natural integer size for an architecture is usually called a word and in ARM is obviously 32-bit integers. Sometimes, though, we need to deal with subword data: integers of size smaller than 32 bits.

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  • ARM assembler in Raspberry Pi – Chapter 20

    Aug 20, 2014 • • Raspberry Pi

    Today we will see how to make indirect calls.

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  • TinyMCE checkbox toggler for jQuery

    Jun 9, 2014 • • Uncategorized • javascript, jquery, tinymce

    Here’s a small jQuery code snippet that you can use to have an easy to use checkbox toggler to enable or disable a TinyMCE editor with ease (tested on TinyMCE version 4 and jQuery version 2.1.1).

    It’s really easy to use. You just need to create a checkbox element with the class tiny_mce_toggler and a data attribute with the key editor and the text area id used as a TinyMCE editor as a value. The snippet can be easily extracted if you want to use it differently.

    Here is the javascript snippet:

    $(function() {
  var TinyMceToggler = function(_checkbox){
    var checkbox = $(_checkbox);
    var editor = checkbox.data('editor');

    checkbox.click(function(){
      if (this.checked) {
      console.log("Add");
        tinyMCE.execCommand( 'mceAddEditor', false, editor );
      }
      else {
      console.log("Remove");
        tinyMCE.execCommand( 'mceRemoveEditor', false, editor );
      }
    });
  };

  $("input.tiny_mce_toggler").each(function(){
    new TinyMceToggler(this);
  });
});

    And here you can see how to integrate it on a page with a TinyMCE editor:

    <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8" />
  <title>TinyMCE - Toggler</title>
  <link type="text/css" rel="stylesheet" href="http://moxiecode.cachefly.net/tinymce/v8/css/all.min.css?v=8" />
  <script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
  <script type="text/javascript" src="javascript/tinymce/tinymce.min.js"></script>
  <script type="text/javascript">
  $(function() {
    tinymce.init({
        selector: "textarea"
    });

    var TinyMceToggler = function(_checkbox){
      var checkbox = $(_checkbox);
      var editor = checkbox.data('editor');

      checkbox.click(function(){
        if (this.checked) {
        console.log("Add");
          tinyMCE.execCommand( 'mceAddEditor', false, editor );
        }
        else {
        console.log("Remove");
          tinyMCE.execCommand( 'mceRemoveEditor', false, editor );
        }
      });
    };

    $("input.tiny_mce_toggler").each(function(){
      new TinyMceToggler(this);
    });
  });
  </script>
</head>
<body>
<form method="post" action="#">
    <input type="checkbox" data-editor="tiny" checked="checked" class="tiny_mce_toggler" style="display: block;" />
    <textarea id="tiny"></textarea>
</form>
</body>
</html>

    You can run the example on this fiddle: http://fiddle.tinymce.com/7jeaab

  • ARM assembler in Raspberry Pi – Chapter 19

    May 24, 2014 • • Raspberry Pi

    So far our small assembler programs have output messages using printf and some of them have read input using scanf. These two functions are implemented in the C library, so they are more or less supported in any environment supporting the C language. But how does a program actually communicate with the world?

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  • ARM assembler in Raspberry Pi – Chapter 18

    May 11, 2014 • • Raspberry Pi

    In this chapter we will delve a bit more into the stack.

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