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| <div class="section" id="smiley-helper"> |
| <h1>Smiley Helper<a class="headerlink" href="#smiley-helper" title="Permalink to this headline">¶</a></h1> |
| <p>The Smiley Helper file contains functions that let you manage smileys |
| (emoticons).</p> |
| <div class="admonition important"> |
| <p class="first admonition-title">Important</p> |
| <p class="last">The Smiley helper is DEPRECATED and should not be used. |
| It is currently only kept for backwards compatibility.</p> |
| </div> |
| <div class="contents local topic" id="contents"> |
| <ul class="simple"> |
| <li><a class="reference internal" href="#loading-this-helper" id="id1">Loading this Helper</a></li> |
| <li><a class="reference internal" href="#overview" id="id2">Overview</a></li> |
| <li><a class="reference internal" href="#clickable-smileys-tutorial" id="id3">Clickable Smileys Tutorial</a><ul> |
| <li><a class="reference internal" href="#the-controller" id="id4">The Controller</a></li> |
| <li><a class="reference internal" href="#field-aliases" id="id5">Field Aliases</a></li> |
| </ul> |
| </li> |
| <li><a class="reference internal" href="#available-functions" id="id6">Available Functions</a></li> |
| </ul> |
| </div> |
| <div class="custom-index container"></div><div class="section" id="loading-this-helper"> |
| <h2><a class="toc-backref" href="#id1">Loading this Helper</a><a class="headerlink" href="#loading-this-helper" title="Permalink to this headline">¶</a></h2> |
| <p>This helper is loaded using the following code:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'smiley'</span><span class="p">);</span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="overview"> |
| <h2><a class="toc-backref" href="#id2">Overview</a><a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h2> |
| <p>The Smiley helper has a renderer that takes plain text smileys, like |
| :-) and turns them into a image representation, like <img alt="smile!" src="../_images/smile.gif" /></p> |
| <p>It also lets you display a set of smiley images that when clicked will |
| be inserted into a form field. For example, if you have a blog that |
| allows user commenting you can show the smileys next to the comment |
| form. Your users can click a desired smiley and with the help of some |
| JavaScript it will be placed into the form field.</p> |
| </div> |
| <div class="section" id="clickable-smileys-tutorial"> |
| <h2><a class="toc-backref" href="#id3">Clickable Smileys Tutorial</a><a class="headerlink" href="#clickable-smileys-tutorial" title="Permalink to this headline">¶</a></h2> |
| <p>Here is an example demonstrating how you might create a set of clickable |
| smileys next to a form field. This example requires that you first |
| download and install the smiley images, then create a controller and the |
| View as described.</p> |
| <div class="admonition important"> |
| <p class="first admonition-title">Important</p> |
| <p class="last">Before you begin, please <a class="reference external" href="https://ellislab.com/asset/ci_download_files/smileys.zip">download the smiley images</a> |
| and put them in a publicly accessible place on your server. |
| This helper also assumes you have the smiley replacement array |
| located at <cite>application/config/smileys.php</cite></p> |
| </div> |
| <div class="section" id="the-controller"> |
| <h3><a class="toc-backref" href="#id4">The Controller</a><a class="headerlink" href="#the-controller" title="Permalink to this headline">¶</a></h3> |
| <p>In your <strong>application/controllers/</strong> directory, create a file called |
| Smileys.php and place the code below in it.</p> |
| <div class="admonition important"> |
| <p class="first admonition-title">Important</p> |
| <p class="last">Change the URL in the <a class="reference internal" href="#get_clickable_smileys" title="get_clickable_smileys"><code class="xref php php-func docutils literal"><span class="pre">get_clickable_smileys()</span></code></a> |
| function below so that it points to your smiley folder.</p> |
| </div> |
| <p>You’ll notice that in addition to the smiley helper, we are also using |
| the <a class="reference internal" href="../libraries/table.html"><span class="doc">Table Class</span></a>:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> |
| |
| <span class="k">class</span> <span class="nc">Smileys</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span> |
| |
| <span class="k">public</span> <span class="k">function</span> <span class="nf">index</span><span class="p">()</span> |
| <span class="p">{</span> |
| <span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'smiley'</span><span class="p">);</span> |
| <span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'table'</span><span class="p">);</span> |
| |
| <span class="nv">$image_array</span> <span class="o">=</span> <span class="nx">get_clickable_smileys</span><span class="p">(</span><span class="s1">'http://example.com/images/smileys/'</span><span class="p">,</span> <span class="s1">'comments'</span><span class="p">);</span> |
| <span class="nv">$col_array</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">table</span><span class="o">-></span><span class="na">make_columns</span><span class="p">(</span><span class="nv">$image_array</span><span class="p">,</span> <span class="mi">8</span><span class="p">);</span> |
| |
| <span class="nv">$data</span><span class="p">[</span><span class="s1">'smiley_table'</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">table</span><span class="o">-></span><span class="na">generate</span><span class="p">(</span><span class="nv">$col_array</span><span class="p">);</span> |
| <span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">view</span><span class="p">(</span><span class="s1">'smiley_view'</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> |
| <span class="p">}</span> |
| |
| <span class="p">}</span> |
| </pre></div> |
| </div> |
| <p>In your <strong>application/views/</strong> directory, create a file called <strong>smiley_view.php</strong> |
| and place this code in it:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><</span><span class="nx">html</span><span class="o">></span> |
| <span class="o"><</span><span class="nx">head</span><span class="o">></span> |
| <span class="o"><</span><span class="nx">title</span><span class="o">></span><span class="nx">Smileys</span><span class="o"></</span><span class="nx">title</span><span class="o">></span> |
| <span class="o"><?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nx">smiley_js</span><span class="p">();</span> <span class="cp">?></span> |
| <span class="p"></</span><span class="nt">head</span><span class="p">></span> |
| <span class="p"><</span><span class="nt">body</span><span class="p">></span> |
| <span class="p"><</span><span class="nt">form</span> <span class="na">name</span><span class="o">=</span><span class="s">"blog"</span><span class="p">></span> |
| <span class="p"><</span><span class="nt">textarea</span> <span class="na">name</span><span class="o">=</span><span class="s">"comments"</span> <span class="na">id</span><span class="o">=</span><span class="s">"comments"</span> <span class="na">cols</span><span class="o">=</span><span class="s">"40"</span> <span class="na">rows</span><span class="o">=</span><span class="s">"4"</span><span class="p">></</span><span class="nt">textarea</span><span class="p">></span> |
| <span class="p"></</span><span class="nt">form</span><span class="p">></span> |
| <span class="p"><</span><span class="nt">p</span><span class="p">></span>Click to insert a smiley!<span class="p"></</span><span class="nt">p</span><span class="p">></span> |
| <span class="cp"><?php</span> <span class="k">echo</span> <span class="nv">$smiley_table</span><span class="p">;</span> <span class="cp">?></span> <span class="p"></</span><span class="nt">body</span><span class="p">></span> <span class="p"></</span><span class="nt">html</span><span class="p">></span> |
| When you have created the above controller and view, load it by visiting http://www.example.com/index.php/smileys/ |
| <span class="p"></</span><span class="nt">body</span><span class="p">></span> |
| <span class="p"></</span><span class="nt">html</span><span class="p">></span> |
| </pre></div> |
| </div> |
| </div> |
| <div class="section" id="field-aliases"> |
| <h3><a class="toc-backref" href="#id5">Field Aliases</a><a class="headerlink" href="#field-aliases" title="Permalink to this headline">¶</a></h3> |
| <p>When making changes to a view it can be inconvenient to have the field |
| id in the controller. To work around this, you can give your smiley |
| links a generic name that will be tied to a specific id in your view.</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$image_array</span> <span class="o">=</span> <span class="nx">get_smiley_links</span><span class="p">(</span><span class="s2">"http://example.com/images/smileys/"</span><span class="p">,</span> <span class="s2">"comment_textarea_alias"</span><span class="p">);</span> |
| </pre></div> |
| </div> |
| <p>To map the alias to the field id, pass them both into the |
| <code class="xref py py-func docutils literal"><span class="pre">smiley_js()</span></code> function:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$image_array</span> <span class="o">=</span> <span class="nx">smiley_js</span><span class="p">(</span><span class="s2">"comment_textarea_alias"</span><span class="p">,</span> <span class="s2">"comments"</span><span class="p">);</span> |
| </pre></div> |
| </div> |
| </div> |
| </div> |
| <div class="section" id="available-functions"> |
| <h2><a class="toc-backref" href="#id6">Available Functions</a><a class="headerlink" href="#available-functions" title="Permalink to this headline">¶</a></h2> |
| <dl class="function"> |
| <dt id="get_clickable_smileys"> |
| <code class="descname">get_clickable_smileys</code><span class="sig-paren">(</span><em>$image_url</em><span class="optional">[</span>, <em>$alias = ''</em><span class="optional">[</span>, <em>$smileys = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#get_clickable_smileys" title="Permalink to this definition">¶</a></dt> |
| <dd><table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> |
| <li><strong>$image_url</strong> (<em>string</em>) – URL path to the smileys directory</li> |
| <li><strong>$alias</strong> (<em>string</em>) – Field alias</li> |
| </ul> |
| </td> |
| </tr> |
| <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array of ready to use smileys</p> |
| </td> |
| </tr> |
| <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <p>Returns an array containing your smiley images wrapped in a clickable |
| link. You must supply the URL to your smiley folder and a field id or |
| field alias.</p> |
| <p>Example:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$image_array</span> <span class="o">=</span> <span class="nx">get_clickable_smileys</span><span class="p">(</span><span class="s1">'http://example.com/images/smileys/'</span><span class="p">,</span> <span class="s1">'comment'</span><span class="p">);</span> |
| </pre></div> |
| </div> |
| </dd></dl> |
| |
| <dl class="function"> |
| <dt id="smiley_js"> |
| <code class="descname">smiley_js</code><span class="sig-paren">(</span><span class="optional">[</span><em>$alias = ''</em><span class="optional">[</span>, <em>$field_id = ''</em><span class="optional">[</span>, <em>$inline = TRUE</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#smiley_js" title="Permalink to this definition">¶</a></dt> |
| <dd><table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> |
| <li><strong>$alias</strong> (<em>string</em>) – Field alias</li> |
| <li><strong>$field_id</strong> (<em>string</em>) – Field ID</li> |
| <li><strong>$inline</strong> (<em>bool</em>) – Whether we’re inserting an inline smiley</li> |
| </ul> |
| </td> |
| </tr> |
| <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Smiley-enabling JavaScript code</p> |
| </td> |
| </tr> |
| <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <p>Generates the JavaScript that allows the images to be clicked and |
| inserted into a form field. If you supplied an alias instead of an id |
| when generating your smiley links, you need to pass the alias and |
| corresponding form id into the function. This function is designed to be |
| placed into the <head> area of your web page.</p> |
| <p>Example:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nx">smiley_js</span><span class="p">();</span> <span class="cp">?></span> |
| </pre></div> |
| </div> |
| </dd></dl> |
| |
| <dl class="function"> |
| <dt id="parse_smileys"> |
| <code class="descname">parse_smileys</code><span class="sig-paren">(</span><span class="optional">[</span><em>$str = ''</em><span class="optional">[</span>, <em>$image_url = ''</em><span class="optional">[</span>, <em>$smileys = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#parse_smileys" title="Permalink to this definition">¶</a></dt> |
| <dd><table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> |
| <li><strong>$str</strong> (<em>string</em>) – Text containing smiley codes</li> |
| <li><strong>$image_url</strong> (<em>string</em>) – URL path to the smileys directory</li> |
| <li><strong>$smileys</strong> (<em>array</em>) – An array of smileys</li> |
| </ul> |
| </td> |
| </tr> |
| <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Parsed smileys</p> |
| </td> |
| </tr> |
| <tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <p>Takes a string of text as input and replaces any contained plain text |
| smileys into the image equivalent. The first parameter must contain your |
| string, the second must contain the URL to your smiley folder</p> |
| <p>Example:</p> |
| <div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$str</span> <span class="o">=</span> <span class="s1">'Here are some smileys: :-) ;-)'</span><span class="p">;</span> |
| <span class="nv">$str</span> <span class="o">=</span> <span class="nx">parse_smileys</span><span class="p">(</span><span class="nv">$str</span><span class="p">,</span> <span class="s1">'http://example.com/images/smileys/'</span><span class="p">);</span> |
| <span class="k">echo</span> <span class="nv">$str</span><span class="p">;</span> |
| </pre></div> |
| </div> |
| </dd></dl> |
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