JavaScript – Kuba.co.uk

Sci Fi Mountain Range

October 18, 2016 KubaCanvas, JavaScript

Completely pointless but I learnt a bit about html canvas doing it! Just hit the draw range button to get draw a new one 🙂

Random number between two numbers (JavaScript)

October 10, 2016 KubaJavaScript

Here’s my little function to return a random number between two numbers:

function randomNumberBetween(from, to, allowZero){
  var diff=(to+1)-from;
  var rnum = Math.floor((Math.random() * diff));
  rnum+=from;
  if(rnum==0 && allowZero===false){ 
    rnum=from==0?1:from; // just make it easy for now
  }
  return rnum;
}

function randomNumberBetween(from, to, allowZero){

var diff=(to+1)-from;

var rnum = Math.floor((Math.random() * diff));

rnum+=from;

if(rnum==0 && allowZero===false){

rnum=from==0?1:from; // just make it easy for now

}

return rnum;

}

The ‘allowZero’ flag does just that.. though if you use this function you may wish to change what it does if it does generate a zero. It’ll work on […]

Angular ngAnimate table row detail slide down (similar to jQuery.slideDown)

November 6, 2015November 7, 2015 KubaAngularJs, JavaScript

Let’s start with an example of what we’re trying to achieve – click the rows to show and hide a detail row: I figured this would be pretty straight forward with lots of examples out there in the wild but unless […]

JavaScript document map

January 6, 2010March 7, 2016 KubaJavaScript

JavaScript code to generate a document map/table of contents from the document structure. NB – Sorry I need to update this to get the examples working in WordPress This page generates the following document map: [jscript]

[brushjs]

function get_my_navigation(use_body, html_text, do_bookmarks, heading_level, show_level) {    

    

	//var all_elements = document.getElementsByTagName("*");

    var all_elements;



    if (use_body == 1)

        all_elements = document.getElementsByTagName("*");

    else if (html_text!=""){

        html_div = document.createElement("div");

        html_div.innerHTML = html_text;

        all_elements = html_div.getElementsByTagName("*");

    }

    if ((heading_level==null) || (heading_level==""))

        heading_level=3;

    if (show_level==null)

		show_level=0;

    var hopen="&lt;h"+heading_level+"&gt;";

    var hclose="&lt;/h"+heading_level+"&gt;";

    

    structure = "";

    first_level = 0;

    level_no = 0;

    this_level = 0;

    last_level = 0;

    current_level = 0;



    for (i = 0; i &lt; all_elements.length; i++) {

        h_message = "";

        element_text = "";

        a = all_elements[i];

        if (document.all) {

            element_text = a.innerText;

        } else {

            element_text = a.textContent;

        }

        node_name = all_elements[i].nodeName;

        if (node_name == "H1" || node_name == "H2" || node_name == "H3" || node_name == "H4" || node_name == "H5" || node_name == "H6") {

            level_no++;            

                

            this_level = parseInt(all_elements[i].nodeName.substring(1, 2));

            if (level_no == 1)

                first_level = this_level;

            if (show_level==1)

				element_text+=" ("+this_level+")";

                            

            // if we are bookmarking the contents  

            if (do_bookmarks==1)

                element_text = "&lt;a href='#generated_link_" + i + "'&gt;" + element_text + "&lt;/a&gt;";



            if (this_level == last_level) {



                if (first_level == this_level)

                    structure += hopen + element_text + hclose;

                else

                    structure += "&lt;li&gt;" + element_text + "&lt;/li&gt;";

            }

            else if (this_level &gt; last_level) {

                current_level++;

                difference = this_level - last_level;





                if (difference &gt; 1) {

                    h_message = " (bad heading structure)&lt;/li&gt;";

                }



                if (first_level == this_level)

                    structure += hopen + element_text + hclose;

                else

                    structure += "&lt;ul&gt;&lt;li&gt;" + element_text + h_message + "&lt;/li&gt;";

            }

            else if (this_level &lt; last_level) {            

                difference = last_level - this_level;

                for (z = 0; z &lt; difference; z++) {

                    current_level--;

                    structure += "&lt;/ul&gt;";

                }

                structure += "&lt;/ul&gt;";

                if (current_level &lt; 0)

                    structure += "&lt;li&gt;" + element_text + "&lt;/li&gt;  (bad heading structure)";

                else {

                    if (first_level == this_level)

                        structure += hopen + element_text + hclose;

                    else

                        structure += "&lt;ul&gt;&lt;li&gt;" + element_text + "&lt;/li&gt;";

                }

            }

            

            if (do_bookmarks == 1) {

                var lnk = document.createElement("a");

                lnk.name = "generated_link_" + i;

                lnk.id = "generated_link_" + i;

                all_elements[i].appendChild(lnk);

            }

            last_level = this_level;

        }

    }

    for (z = 0; z &lt; current_level; z++) {

        structure += "&lt;/ul&gt;";

    }

    return structure;   

}

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[brushjs]

function get_my_navigation(use_body, html_text, do_bookmarks, heading_level, show_level) {

//var all_elements = document.getElementsByTagName("*");

var all_elements;

if (use_body == 1)

all_elements = document.getElementsByTagName("*");

else if (html_text!=""){

html_div = document.createElement("div");

html_div.innerHTML = html_text;

all_elements = html_div.getElementsByTagName("*");

}

if ((heading_level==null) || (heading_level==""))

heading_level=3;

if (show_level==null)

show_level=0;

var hopen="<h"+heading_level+">";

var hclose="</h"+heading_level+">";

structure = "";

first_level = 0;

level_no = 0;

this_level = 0;

last_level = 0;

current_level = 0;

for (i = 0; i < all_elements.length; i++) {

h_message = "";

element_text = "";

a = all_elements[i];

if (document.all) {

element_text = a.innerText;

} else {

element_text = a.textContent;

}

node_name = all_elements[i].nodeName;

if (node_name == "H1" || node_name == "H2" || node_name == "H3" || node_name == "H4" || node_name == "H5" || node_name == "H6") {

level_no++;

this_level = parseInt(all_elements[i].nodeName.substring(1, 2));

if (level_no == 1)

first_level = this_level;

if (show_level==1)

element_text+=" ("+this_level+")";

// if we are bookmarking the contents

if (do_bookmarks==1)

element_text = "<a href='#generated_link_" + i + "'>" + element_text + "</a>";

if (this_level == last_level) {

if (first_level == this_level)

structure += hopen + element_text + hclose;

else

structure += "<li>" + element_text + "</li>";

}

else if (this_level > last_level) {

current_level++;

difference = this_level - last_level;

if (difference > 1) {

h_message = " (bad heading structure)</li>";

}

if (first_level == this_level)

structure += hopen + element_text + hclose;

else

structure += "<ul><li>" + element_text + h_message + "</li>";

}

else if (this_level < last_level) {

difference = last_level - this_level;

for (z = 0; z < difference; z++) {

current_level--;

structure += "</ul>";

}

structure += "</ul>";

if (current_level < 0)

structure += "<li>" + element_text + "</li> (bad heading structure)";

else {

if (first_level == this_level)

structure += hopen + element_text + hclose;

else

structure += "<ul><li>" + element_text + "</li>";

}

if (do_bookmarks == 1) {

var lnk = document.createElement("a");

lnk.name = "generated_link_" + i;

lnk.id = "generated_link_" + i;

all_elements[i].appendChild(lnk);

}

last_level = this_level;

}

for (z = 0; z < current_level; z++) {

structure += "</ul>";

}

return structure;

}

You’ll want a […]

CKEditor insert html plugin

October 11, 2009September 14, 2015 KubaJavaScript

I wanted to be able to insert tokens using a drop down in CKEditor. I wanted tokens in brackets that would be replaced later by an application with something meaningful – so [name] for example would be replaced with a […]