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authorAndrey Andreev <narf@devilix.net>2018-06-12 15:45:46 +0200
committerAndrey Andreev <narf@devilix.net>2018-06-12 15:45:46 +0200
commit30e2eafa86c4c7b6b39cea3e7089a90df9f603fb (patch)
tree391bc1e62d8d0ad045e18a6da72e3e2a59e91503 /user_guide/helpers/smiley_helper.html
parenta9da3dd2f16a8f97d7bc4ff5572b28e4bb84c813 (diff)
[ci skip] 3.1.9 release
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+<li class="toctree-l2"><a class="reference internal" href="security_helper.html">Security Helper</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">Smiley Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="string_helper.html">String Helper</a></li>
+<li class="toctree-l2"><a class="reference internal" href="text_helper.html">Text Helper</a></li>
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+
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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">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="s1">&#39;smiley&#39;</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">&lt;?</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">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="s1">&#39;smiley&#39;</span><span class="p">);</span>
+ <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;table&#39;</span><span class="p">);</span>
+
+ <span class="nv">$image_array</span> <span class="o">=</span> <span class="nx">get_clickable_smileys</span><span class="p">(</span><span class="s1">&#39;http://example.com/images/smileys/&#39;</span><span class="p">,</span> <span class="s1">&#39;comments&#39;</span><span class="p">);</span>
+ <span class="nv">$col_array</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">table</span><span class="o">-&gt;</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">&#39;smiley_table&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">table</span><span class="o">-&gt;</span><span class="na">generate</span><span class="p">(</span><span class="nv">$col_array</span><span class="p">);</span>
+ <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">view</span><span class="p">(</span><span class="s1">&#39;smiley_view&#39;</span><span class="p">,</span> <span class="nv">$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">&lt;</span><span class="nx">html</span><span class="o">&gt;</span>
+ <span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
+ <span class="o">&lt;</span><span class="nx">title</span><span class="o">&gt;</span><span class="nx">Smileys</span><span class="o">&lt;/</span><span class="nx">title</span><span class="o">&gt;</span>
+ <span class="o">&lt;?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nx">smiley_js</span><span class="p">();</span> <span class="cp">?&gt;</span>
+ <span class="p">&lt;/</span><span class="nt">head</span><span class="p">&gt;</span>
+ <span class="p">&lt;</span><span class="nt">body</span><span class="p">&gt;</span>
+ <span class="p">&lt;</span><span class="nt">form</span> <span class="na">name</span><span class="o">=</span><span class="s">&quot;blog&quot;</span><span class="p">&gt;</span>
+ <span class="p">&lt;</span><span class="nt">textarea</span> <span class="na">name</span><span class="o">=</span><span class="s">&quot;comments&quot;</span> <span class="na">id</span><span class="o">=</span><span class="s">&quot;comments&quot;</span> <span class="na">cols</span><span class="o">=</span><span class="s">&quot;40&quot;</span> <span class="na">rows</span><span class="o">=</span><span class="s">&quot;4&quot;</span><span class="p">&gt;&lt;/</span><span class="nt">textarea</span><span class="p">&gt;</span>
+ <span class="p">&lt;/</span><span class="nt">form</span><span class="p">&gt;</span>
+ <span class="p">&lt;</span><span class="nt">p</span><span class="p">&gt;</span>Click to insert a smiley!<span class="p">&lt;/</span><span class="nt">p</span><span class="p">&gt;</span>
+ <span class="cp">&lt;?php</span> <span class="k">echo</span> <span class="nv">$smiley_table</span><span class="p">;</span> <span class="cp">?&gt;</span> <span class="p">&lt;/</span><span class="nt">body</span><span class="p">&gt;</span> <span class="p">&lt;/</span><span class="nt">html</span><span class="p">&gt;</span>
+ When you have created the above controller and view, load it by visiting http://www.example.com/index.php/smileys/
+ <span class="p">&lt;/</span><span class="nt">body</span><span class="p">&gt;</span>
+<span class="p">&lt;/</span><span class="nt">html</span><span class="p">&gt;</span>
+</pre></div>
+</div>
+</div>
+<div class="section" id="field-aliases">
+<h3><a class="toc-backref" href="#id5">Field Aliases</a><a class="headerlink" href="#field-aliases" title="Permalink to this headline">¶</a></h3>
+<p>When making changes to a view it can be inconvenient to have the field
+id in the controller. To work around this, you can give your smiley
+links a generic name that will be tied to a specific id in your view.</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$image_array</span> <span class="o">=</span> <span class="nx">get_smiley_links</span><span class="p">(</span><span class="s2">&quot;http://example.com/images/smileys/&quot;</span><span class="p">,</span> <span class="s2">&quot;comment_textarea_alias&quot;</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">$image_array</span> <span class="o">=</span> <span class="nx">smiley_js</span><span class="p">(</span><span class="s2">&quot;comment_textarea_alias&quot;</span><span class="p">,</span> <span class="s2">&quot;comments&quot;</span><span class="p">);</span>
+</pre></div>
+</div>
+</div>
+</div>
+<div class="section" id="available-functions">
+<h2><a class="toc-backref" href="#id6">Available Functions</a><a class="headerlink" href="#available-functions" title="Permalink to this headline">¶</a></h2>
+<dl class="function">
+<dt id="get_clickable_smileys">
+<code class="descname">get_clickable_smileys</code><span class="sig-paren">(</span><em>$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">$image_array</span> <span class="o">=</span> <span class="nx">get_clickable_smileys</span><span class="p">(</span><span class="s1">&#39;http://example.com/images/smileys/&#39;</span><span class="p">,</span> <span class="s1">&#39;comment&#39;</span><span class="p">);</span>
+</pre></div>
+</div>
+</dd></dl>
+
+<dl class="function">
+<dt id="smiley_js">
+<code class="descname">smiley_js</code><span class="sig-paren">(</span><span class="optional">[</span><em>$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>$inline</strong> (<em>bool</em>) – Whether we’re inserting an inline smiley</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Smiley-enabling JavaScript code</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Generates the JavaScript that allows the images to be clicked and
+inserted into a form field. If you supplied an alias instead of an id
+when generating your smiley links, you need to pass the alias and
+corresponding form id into the function. This function is designed to be
+placed into the &lt;head&gt; area of your web page.</p>
+<p>Example:</p>
+<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o">&lt;?</span><span class="nx">php</span> <span class="k">echo</span> <span class="nx">smiley_js</span><span class="p">();</span> <span class="cp">?&gt;</span>
+</pre></div>
+</div>
+</dd></dl>
+
+<dl class="function">
+<dt id="parse_smileys">
+<code class="descname">parse_smileys</code><span class="sig-paren">(</span><span class="optional">[</span><em>$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">&#39;Here are some smileys: :-) ;-)&#39;</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">&#39;http://example.com/images/smileys/&#39;</span><span class="p">);</span>
+<span class="k">echo</span> <span class="nv">$str</span><span class="p">;</span>
+</pre></div>
+</div>
+</dd></dl>
+
+</div>
+</div>
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