134 lines
5.8 KiB
Java
134 lines
5.8 KiB
Java
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<link rel="icon" href="favicon.png" />
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<title>Toolbar ▲ Prism plugins</title>
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<base href="../.." />
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<link rel="stylesheet" href="style.css" />
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<link rel="stylesheet" href="themes/prism.css" data-noprefix />
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<link rel="stylesheet" href="plugins/toolbar/prism-toolbar.css" data-noprefix />
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<script src="prefixfree.min.js"></script>
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<script>var _gaq = [['_setAccount', 'UA-33746269-1'], ['_trackPageview']];</script>
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<script src="https://www.google-analytics.com/ga.js" async></script>
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</head>
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<body class="language-markup" data-toolbar-order="select-code,hello-world,label">
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<header>
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<div class="intro" data-src="templates/header-plugins.html" data-type="text/html"></div>
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<h2>Toolbar</h2>
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<p>Attach a toolbar for plugins to easily register buttons on the top of a code block.</p>
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</header>
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<section>
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<h1>How to use</h1>
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<p>The Toolbar plugin allows for several methods to register your button, using the <code>Prism.plugins.toolbar.registerButton</code> function.</p>
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<p>The simplest method is through the HTML API. Add a <code>data-label</code> attribute to the <code>pre</code> element, and the Toolbar
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plugin will read the value of that attribute and append a label to the code snippet.</p>
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<pre data-label="Hello World!"><code class="language-markup"><pre data-src="plugins/toolbar/prism-toolbar.js" data-label="Hello World!"></pre></code></pre>
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<p>If you want to provide arbitrary HTML to the label, create a <code>template</code> element with the HTML you want in the label, and provide the
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<code>template</code> element's <code>id</code> to <code>data-label</code>. The Toolbar plugin will use the template's content for the button.
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You can also use to declare your event handlers inline:</p>
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<pre data-label="my-label-button"><code class="language-markup"><pre data-src="plugins/toolbar/prism-toolbar.js" data-label="my-label-button"></pre></code></pre>
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<pre><code><template id="my-label-button"><button onclick="console.log('This is an inline-handler');">My button</button></template></code></pre>
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<p>For more flexibility, the Toolbar exposes a JavaScript function that can be used to register new buttons or labels to the Toolbar,
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<code>Prism.plugins.toolbar.registerButton</code>.</p>
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<p>The function accepts a key for the button and an object with a <code>text</code> property string and an optional
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<code>onClick</code> function or <code>url</code> string. The <code>onClick</code> function will be called when the button is clicked, while the
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<code>url</code> property will be set to the anchor tag's <code>href</code>.</p>
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<pre><code class="language-javascript">Prism.plugins.toolbar.registerButton('hello-world', {
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text: 'Hello World!', // required
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onClick: function (env) { // optional
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alert('This code snippet is written in ' + env.language + '.');
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}
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});</code></pre>
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<p>See how the above code registers the <code>Hello World!</code> button? You can use this in your plugins to register your own buttons with the toolbar.</p>
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<p>If you need more control, you can provide a function to <code>registerButton</code> that returns either a <code>span</code>, <code>a</code>, or
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<code>button</code> element.</p>
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<pre><code class="language-javascript">Prism.plugins.toolbar.registerButton('select-code', function() {
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var button = document.createElement('button');
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button.innerHTML = 'Select Code';
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button.addEventListener('click', function () {
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// Source: http://stackoverflow.com/a/11128179/2757940
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if (document.body.createTextRange) { // ms
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var range = document.body.createTextRange();
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range.moveToElementText(env.element);
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range.select();
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} else if (window.getSelection) { // moz, opera, webkit
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var selection = window.getSelection();
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var range = document.createRange();
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range.selectNodeContents(env.element);
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selection.removeAllRanges();
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selection.addRange(range);
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}
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});
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return button;
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});</code></pre>
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<p>The above function creates the Select Code button you see, and when you click it, the code gets highlighted.</p>
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<p>By default, the buttons will be added to the code snippet in the order they were registered. If more control over
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the order is needed, an HTML attribute can be added to the <code>body</code> tag with a comma-separated string indicating the
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order.</p>
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<pre><code><body data-toolbar-order="select-code,hello-world,label"></code></pre>
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</section>
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<footer data-src="templates/footer.html" data-type="text/html"></footer>
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<template id="my-label-button"><button onclick="console.log('This is an inline-handler');">My button</button></template>
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<script src="prism.js"></script>
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<script src="plugins/toolbar/prism-toolbar.js"></script>
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<script src="utopia.js"></script>
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<script src="components.js"></script>
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<script>
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Prism.plugins.toolbar.registerButton('hello-world', {
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text: 'Hello World!', // required
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onClick: function (env) { // optional
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alert('This code snippet is written in ' + env.language + '.');
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}
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});
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</script>
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<script>
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Prism.plugins.toolbar.registerButton('select-code', function(env) {
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var button = document.createElement('button');
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button.innerHTML = 'Select Code';
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button.addEventListener('click', function () {
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// Source: http://stackoverflow.com/a/11128179/2757940
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if (document.body.createTextRange) { // ms
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var range = document.body.createTextRange();
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range.moveToElementText(env.element);
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range.select();
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} else if (window.getSelection) { // moz, opera, webkit
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var selection = window.getSelection();
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var range = document.createRange();
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range.selectNodeContents(env.element);
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selection.removeAllRanges();
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selection.addRange(range);
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}
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});
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return button;
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});
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</script>
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<script src="code.js"></script>
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</body>
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</html>
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