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<div class="section" id="javascript-class">
<h1>Javascript Class<a class="headerlink" href="#javascript-class" title="Permalink to this headline">¶</a></h1>
<p>CodeIgniter provides a library to help you with certain common functions
that you may want to use with Javascript. Please note that CodeIgniter
does not require the jQuery library to run, and that any scripting
library will work equally well. The jQuery library is simply presented
as a convenience if you choose to use it.</p>
<div class="admonition important">
<p class="first admonition-title">Important</p>
<p class="last">This library is DEPRECATED and should not be used. It has always
been with an ‘experimental’ status and is now no longer supported.
Currently only kept for backwards compatibility.</p>
</div>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><a class="reference internal" href="#using-the-javascript-class" id="id3">Using the Javascript Class</a><ul>
<li><a class="reference internal" href="#initializing-the-class" id="id4">Initializing the Class</a></li>
<li><a class="reference internal" href="#setup-and-configuration" id="id5">Setup and Configuration</a><ul>
<li><a class="reference internal" href="#set-these-variables-in-your-view" id="id6">Set these variables in your view</a></li>
<li><a class="reference internal" href="#set-the-path-to-the-librarys-with-config-items" id="id7">Set the path to the librarys with config items</a></li>
</ul>
</li>
<li><a class="reference internal" href="#the-jquery-class" id="id8">The jQuery Class</a></li>
<li><a class="reference internal" href="#jquery-events" id="id9">jQuery Events</a></li>
<li><a class="reference internal" href="#effects" id="id10">Effects</a><ul>
<li><a class="reference internal" href="#hide-show" id="id11">hide() / show()</a></li>
<li><a class="reference internal" href="#toggle" id="id12">toggle()</a></li>
<li><a class="reference internal" href="#animate" id="id13">animate()</a></li>
<li><a class="reference internal" href="#fadein-fadeout" id="id14">fadeIn() / fadeOut()</a></li>
<li><a class="reference internal" href="#toggleclass" id="id15">toggleClass()</a></li>
<li><a class="reference internal" href="#id2" id="id16">fadeIn() / fadeOut()</a></li>
<li><a class="reference internal" href="#slideup-slidedown-slidetoggle" id="id17">slideUp() / slideDown() / slideToggle()</a></li>
</ul>
</li>
<li><a class="reference internal" href="#plugins" id="id18">Plugins</a><ul>
<li><a class="reference internal" href="#corner" id="id19">corner()</a></li>
<li><a class="reference internal" href="#tablesorter" id="id20">tablesorter()</a></li>
<li><a class="reference internal" href="#modal" id="id21">modal()</a></li>
<li><a class="reference internal" href="#calendar" id="id22">calendar()</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
<div class="custom-index container"></div><div class="section" id="using-the-javascript-class">
<h2><a class="toc-backref" href="#id3">Using the Javascript Class</a><a class="headerlink" href="#using-the-javascript-class" title="Permalink to this headline">¶</a></h2>
<div class="section" id="initializing-the-class">
<h3><a class="toc-backref" href="#id4">Initializing the Class</a><a class="headerlink" href="#initializing-the-class" title="Permalink to this headline">¶</a></h3>
<p>To initialize the Javascript class manually in your controller
constructor, use the <tt class="docutils literal"><span class="pre">$this->load->library()</span></tt> method. Currently,
the only available library is jQuery, which will automatically be
loaded like this:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'javascript'</span><span class="p">);</span>
</pre></div>
</div>
<p>The Javascript class also accepts parameters:</p>
<ul class="simple">
<li>js_library_driver (string) <em>default: ‘jquery’</em></li>
<li>autoload (bool) <em>default: TRUE</em></li>
</ul>
<p>You may override the defaults by sending an associative array:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span>
<span class="s1">'javascript'</span><span class="p">,</span>
<span class="k">array</span><span class="p">(</span>
<span class="s1">'js_library_driver'</span> <span class="o">=></span> <span class="s1">'scripto'</span><span class="p">,</span>
<span class="s1">'autoload'</span> <span class="o">=></span> <span class="k">FALSE</span>
<span class="p">)</span>
<span class="p">);</span>
</pre></div>
</div>
<p>Again, presently only ‘jquery’ is available. You may wish to set
autoload to FALSE, though, if you do not want the jQuery library to
automatically include a script tag for the main jQuery script file. This
is useful if you are loading it from a location outside of CodeIgniter,
or already have the script tag in your markup.</p>
<p>Once loaded, the jQuery library object will be available using:</p>
<blockquote>
<div>$this->javascript</div></blockquote>
</div>
<div class="section" id="setup-and-configuration">
<h3><a class="toc-backref" href="#id5">Setup and Configuration</a><a class="headerlink" href="#setup-and-configuration" title="Permalink to this headline">¶</a></h3>
<div class="section" id="set-these-variables-in-your-view">
<h4><a class="toc-backref" href="#id6">Set these variables in your view</a><a class="headerlink" href="#set-these-variables-in-your-view" title="Permalink to this headline">¶</a></h4>
<p>As a Javascript library, your files must be available to your
application.</p>
<p>As Javascript is a client side language, the library must be able to
write content into your final output. This generally means a view.
You’ll need to include the following variables in the <tt class="docutils literal"><span class="pre"><head></span></tt>
sections of your output.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="o"><?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nv">$library_src</span><span class="p">;</span><span class="cp">?></span>
<span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$script_head</span><span class="p">;</span><span class="cp">?></span>
</pre></div>
</div>
<p><tt class="docutils literal"><span class="pre">$library_src</span></tt>, is where the actual library file will be loaded, as
well as any subsequent plugin script calls; $script_head is where
specific events, functions and other commands will be rendered.</p>
</div>
<div class="section" id="set-the-path-to-the-librarys-with-config-items">
<h4><a class="toc-backref" href="#id7">Set the path to the librarys with config items</a><a class="headerlink" href="#set-the-path-to-the-librarys-with-config-items" title="Permalink to this headline">¶</a></h4>
<p>There are some configuration items in Javascript library. These can
either be set in <em>application/config.php</em>, within its own
<em>config/javascript.php</em> file, or within any controller usings the
<tt class="docutils literal"><span class="pre">set_item()</span></tt> function.</p>
<p>An image to be used as an “ajax loader”, or progress indicator. Without
one, the simple text message of “loading” will appear when Ajax calls
need to be made.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$config</span><span class="p">[</span><span class="s1">'javascript_location'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'http://localhost/codeigniter/themes/js/jquery/'</span><span class="p">;</span>
<span class="nv">$config</span><span class="p">[</span><span class="s1">'javascript_ajax_img'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'images/ajax-loader.gif'</span><span class="p">;</span>
</pre></div>
</div>
<p>If you keep your files in the same directories they were downloaded
from, then you need not set this configuration items.</p>
</div>
</div>
<div class="section" id="the-jquery-class">
<h3><a class="toc-backref" href="#id8">The jQuery Class</a><a class="headerlink" href="#the-jquery-class" title="Permalink to this headline">¶</a></h3>
<p>To initialize the jQuery class manually in your controller constructor,
use the <tt class="docutils literal"><span class="pre">$this->load->library()</span></tt> method:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'javascript/jquery'</span><span class="p">);</span>
</pre></div>
</div>
<p>You may send an optional parameter to determine whether or not a script
tag for the main jQuery file will be automatically included when loading
the library. It will be created by default. To prevent this, load the
library as follows:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'javascript/jquery'</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span>
</pre></div>
</div>
<p>Once loaded, the jQuery library object will be available using:</p>
<blockquote>
<div>$this->jquery</div></blockquote>
</div>
<div class="section" id="jquery-events">
<h3><a class="toc-backref" href="#id9">jQuery Events</a><a class="headerlink" href="#jquery-events" title="Permalink to this headline">¶</a></h3>
<p>Events are set using the following syntax.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">event</span><span class="p">(</span><span class="s1">'element_path'</span><span class="p">,</span> <span class="nx">code_to_run</span><span class="p">());</span>
</pre></div>
</div>
<p>In the above example:</p>
<ul class="simple">
<li>“event” is any of blur, change, click, dblclick, error, focus, hover,
keydown, keyup, load, mousedown, mouseup, mouseover, mouseup, resize,
scroll, or unload.</li>
<li>“element_path” is any valid <a class="reference external" href="http://api.jquery.com/category/selectors/">jQuery selector</a>. Due to jQuery’s unique
selector syntax, this is usually an element id, or CSS selector. For
example “#notice_area” would effect <tt class="docutils literal"><span class="pre"><div</span> <span class="pre">id="notice_area"></span></tt>, and
“#content a.notice” would effect all anchors with a class of “notice”
in the div with id “content”.</li>
<li>“<tt class="docutils literal"><span class="pre">code_to_run()</span></tt>” is script your write yourself, or an action such as
an effect from the jQuery library below.</li>
</ul>
</div>
<div class="section" id="effects">
<h3><a class="toc-backref" href="#id10">Effects</a><a class="headerlink" href="#effects" title="Permalink to this headline">¶</a></h3>
<p>The query library supports a powerful
<a class="reference external" href="http://api.jquery.com/category/effects/">Effects</a> repertoire. Before an effect
can be used, it must be loaded:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">effect</span><span class="p">([</span><span class="nx">optional</span> <span class="nx">path</span><span class="p">]</span> <span class="nx">plugin</span> <span class="nx">name</span><span class="p">);</span> <span class="c1">// for example $this->jquery->effect('bounce');</span>
</pre></div>
</div>
<div class="section" id="hide-show">
<h4><a class="toc-backref" href="#id11">hide() / show()</a><a class="headerlink" href="#hide-show" title="Permalink to this headline">¶</a></h4>
<p>Each of this functions will affect the visibility of an item on your
page. hide() will set an item invisible, show() will reveal it.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">hide</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
<span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">show</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“speed” is optional, and is set to either slow, normal, fast, or
alternatively a number of milliseconds.</li>
<li>“extra information” is optional, and could include a callback, or
other additional information.</li>
</ul>
</div>
<div class="section" id="toggle">
<h4><a class="toc-backref" href="#id12">toggle()</a><a class="headerlink" href="#toggle" title="Permalink to this headline">¶</a></h4>
<p>toggle() will change the visibility of an item to the opposite of its
current state, hiding visible elements, and revealing hidden ones.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">toggle</span><span class="p">(</span><span class="nx">target</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
</ul>
</div>
<div class="section" id="animate">
<h4><a class="toc-backref" href="#id13">animate()</a><a class="headerlink" href="#animate" title="Permalink to this headline">¶</a></h4>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">animate</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">parameters</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“parameters” in jQuery would generally include a series of CSS
properties that you wish to change.</li>
<li>“speed” is optional, and is set to either slow, normal, fast, or
alternatively a number of milliseconds.</li>
<li>“extra information” is optional, and could include a callback, or
other additional information.</li>
</ul>
<p>For a full summary, see
<a class="reference external" href="http://api.jquery.com/animate/">http://api.jquery.com/animate/</a></p>
<p>Here is an example of an animate() called on a div with an id of “note”,
and triggered by a click using the jQuery library’s click() event.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$params</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
<span class="s1">'height'</span> <span class="o">=></span> <span class="mi">80</span><span class="p">,</span>
<span class="s1">'width'</span> <span class="o">=></span> <span class="s1">'50%'</span><span class="p">,</span>
<span class="s1">'marginLeft'</span> <span class="o">=></span> <span class="mi">125</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">click</span><span class="p">(</span><span class="s1">'#trigger'</span><span class="p">,</span> <span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">animate</span><span class="p">(</span><span class="s1">'#note'</span><span class="p">,</span> <span class="nv">$params</span><span class="p">,</span> <span class="s1">'normal'</span><span class="p">));</span>
</pre></div>
</div>
</div>
<div class="section" id="fadein-fadeout">
<h4><a class="toc-backref" href="#id14">fadeIn() / fadeOut()</a><a class="headerlink" href="#fadein-fadeout" title="Permalink to this headline">¶</a></h4>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">fadeIn</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
<span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">fadeOut</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“speed” is optional, and is set to either slow, normal, fast, or
alternatively a number of milliseconds.</li>
<li>“extra information” is optional, and could include a callback, or
other additional information.</li>
</ul>
</div>
<div class="section" id="toggleclass">
<h4><a class="toc-backref" href="#id15">toggleClass()</a><a class="headerlink" href="#toggleclass" title="Permalink to this headline">¶</a></h4>
<p>This function will add or remove a CSS class to its target.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">toggleClass</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">class</span><span class="p">)</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“class” is any CSS classname. Note that this class must be defined
and available in a CSS that is already loaded.</li>
</ul>
</div>
<div class="section" id="id2">
<h4><a class="toc-backref" href="#id16">fadeIn() / fadeOut()</a><a class="headerlink" href="#id2" title="Permalink to this headline">¶</a></h4>
<p>These effects cause an element(s) to disappear or reappear over time.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">fadeIn</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
<span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">fadeOut</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“speed” is optional, and is set to either slow, normal, fast, or
alternatively a number of milliseconds.</li>
<li>“extra information” is optional, and could include a callback, or
other additional information.</li>
</ul>
</div>
<div class="section" id="slideup-slidedown-slidetoggle">
<h4><a class="toc-backref" href="#id17">slideUp() / slideDown() / slideToggle()</a><a class="headerlink" href="#slideup-slidedown-slidetoggle" title="Permalink to this headline">¶</a></h4>
<p>These effects cause an element(s) to slide.</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">slideUp</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
<span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">slideDown</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
<span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">slideToggle</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">speed</span><span class="p">,</span> <span class="nx">optional</span> <span class="nx">extra</span> <span class="nx">information</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“speed” is optional, and is set to either slow, normal, fast, or
alternatively a number of milliseconds.</li>
<li>“extra information” is optional, and could include a callback, or
other additional information.</li>
</ul>
</div>
</div>
<div class="section" id="plugins">
<h3><a class="toc-backref" href="#id18">Plugins</a><a class="headerlink" href="#plugins" title="Permalink to this headline">¶</a></h3>
<p>Some select jQuery plugins are made available using this library.</p>
<div class="section" id="corner">
<h4><a class="toc-backref" href="#id19">corner()</a><a class="headerlink" href="#corner" title="Permalink to this headline">¶</a></h4>
<p>Used to add distinct corners to page elements. For full details see
<a class="reference external" href="http://malsup.com/jquery/corner/">http://malsup.com/jquery/corner/</a></p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">corner</span><span class="p">(</span><span class="nx">target</span><span class="p">,</span> <span class="nx">corner_style</span><span class="p">);</span>
</pre></div>
</div>
<ul class="simple">
<li>“target” will be any valid jQuery selector or selectors.</li>
<li>“corner_style” is optional, and can be set to any valid style such
as round, sharp, bevel, bite, dog, etc. Individual corners can be set
by following the style with a space and using “tl” (top left), “tr”
(top right), “bl” (bottom left), or “br” (bottom right).</li>
</ul>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-></span><span class="na">jquery</span><span class="o">-></span><span class="na">corner</span><span class="p">(</span><span class="s2">"#note"</span><span class="p">,</span> <span class="s2">"cool tl br"</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="tablesorter">
<h4><a class="toc-backref" href="#id20">tablesorter()</a><a class="headerlink" href="#tablesorter" title="Permalink to this headline">¶</a></h4>
<p>description to come</p>
</div>
<div class="section" id="modal">
<h4><a class="toc-backref" href="#id21">modal()</a><a class="headerlink" href="#modal" title="Permalink to this headline">¶</a></h4>
<p>description to come</p>
</div>
<div class="section" id="calendar">
<h4><a class="toc-backref" href="#id22">calendar()</a><a class="headerlink" href="#calendar" title="Permalink to this headline">¶</a></h4>
<p>description to come</p>
</div>
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