added search form to api docs

extensions/apidoc/composer.json

@@ -23,7 +23,8 @@
 		"yiisoft/yii2-bootstrap": "*",
 		"phpdocumentor/reflection": ">=1.0.3",
 		"phpdocumentor/reflection-docblock": ">2.0.1",
-		"nikic/php-parser": "0.9.*"
+		"nikic/php-parser": "0.9.*",
+		"cebe/js-search": "*"
 	},
 	"autoload": {
 		"psr-4": { "yii\\apidoc\\": "" }

extensions/apidoc/helpers/ApiIndexer.php

+<?php
+/**
+ * 
+ * 
+ * @author Carsten Brandt <mail@cebe.cc>
+ */
+
+namespace yii\apidoc\helpers;
+
+
+use cebe\jssearch\Indexer;
+use cebe\jssearch\tokenizer\StandardTokenizer;
+use cebe\jssearch\TokenizerInterface;
+use yii\helpers\StringHelper;
+
+class ApiIndexer extends Indexer
+{
+    protected function generateFileInfo($file, $contents, $basePath, $baseUrl)
+   	{
+   		// create file entry
+   		if (preg_match('~<h1>(.*?)</h1>~s', $contents, $matches)) {
+   			$title = str_replace('&para;', '', strip_tags($matches[1]));
+   		} elseif (preg_match('~<title>(.*?)</title>~s', $contents, $matches)) {
+   			$title = strip_tags($matches[1]);
+   		} else {
+   			$title = '<i>No title</i>';
+   		}
+
+        if (preg_match('~<div id="classDescription">\s*<strong>(.*?)</strong>~s', $contents, $matches)) {
+            $description = strip_tags($matches[1]);
+        } elseif (preg_match('~<p>(.*?)</p>~s', $contents, $matches)) {
+            $description = strip_tags($matches[1]);
+            if (strlen($description) > 1000) { // TODO truncate by words
+                $description = substr($description, 0, 1000) . '...';
+            }
+        } else {
+            $description = '';
+        }
+
+   		return [
+   			'u' => $baseUrl . str_replace('\\', '/', substr($file, strlen(rtrim($basePath, '\\/')))),
+   			't' => $title,
+   			'd' => $description,
+   		];
+   	}
+
+    /**
+   	 * @return TokenizerInterface
+   	 */
+   	public function getTokenizer()
+   	{
+        $tokenizer = parent::getTokenizer();
+        if ($tokenizer instanceof StandardTokenizer) {
+            // yii is part of every doc and makes weird search results
+            $tokenizer->stopWords[] = 'yii';
+            $tokenizer->stopWords = array_unique($tokenizer->stopWords);
+        }
+   		return $tokenizer;
+   	}
+}
\ No newline at end of file

extensions/apidoc/templates/bootstrap/ApiRenderer.php

@@ -8,7 +8,9 @@
 namespace yii\apidoc\templates\bootstrap;
 
 use Yii;
+use yii\apidoc\helpers\ApiIndexer;
 use yii\helpers\Console;
+use yii\helpers\FileHelper;
 
 /**
  *
@@ -76,6 +78,16 @@ class ApiRenderer extends \yii\apidoc\templates\html\ApiRenderer
 
         if ($this->controller !== null) {
             $this->controller->stdout('done.' . PHP_EOL, Console::FG_GREEN);
+            $this->controller->stdout('generating search index...');
+        }
+
+        $indexer = new ApiIndexer();
+        $indexer->indexFiles(FileHelper::findFiles($targetDir, ['only' => ['*.html']]), $targetDir);
+        $js = $indexer->exportJs();
+        file_put_contents($targetDir . '/jssearch.index.js', $js);
+
+        if ($this->controller !== null) {
+            $this->controller->stdout('done.' . PHP_EOL, Console::FG_GREEN);
         }
     }
 

extensions/apidoc/templates/bootstrap/GuideRenderer.php

@@ -8,6 +8,9 @@
 namespace yii\apidoc\templates\bootstrap;
 
 use Yii;
+use yii\apidoc\helpers\ApiIndexer;
+use yii\helpers\Console;
+use yii\helpers\FileHelper;
 
 /**
  *
@@ -38,5 +41,18 @@ class GuideRenderer extends \yii\apidoc\templates\html\GuideRenderer
         }
 
         parent::render($files, $targetDir);
+
+        if ($this->controller !== null) {
+            $this->controller->stdout('generating search index...');
+        }
+
+        $indexer = new ApiIndexer();
+        $indexer->indexFiles(FileHelper::findFiles($targetDir, ['only' => ['*.html']]), $targetDir);
+        $js = $indexer->exportJs();
+        file_put_contents($targetDir . '/jssearch.index.js', $js);
+
+        if ($this->controller !== null) {
+            $this->controller->stdout('done.' . PHP_EOL, Console::FG_GREEN);
+        }
     }
 }

extensions/apidoc/templates/bootstrap/assets/JsSearchAsset.php

+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\apidoc\templates\bootstrap\assets;
+
+use yii\web\View;
+
+/**
+ * The asset bundle for the offline template.
+ *
+ * @author Carsten Brandt <mail@cebe.cc>
+ * @since 2.0
+ */
+class JsSearchAsset extends \yii\web\AssetBundle
+{
+    public $sourcePath = '@vendor/cebe/js-search';
+    public $js = [
+        'jssearch.js',
+    ];
+    public $depends = [
+        'yii\web\JqueryAsset',
+    ];
+    public $jsOptions = [
+        'position' => View::POS_HEAD,
+    ];
+}

extensions/apidoc/templates/bootstrap/assets/css/style.css

@@ -108,4 +108,70 @@ table.summary-table .col-defined  { width: 15%; }
 .tool-link:hover {
 	color: #bbb;
 	text-decoration: none;
-}
+}
\ No newline at end of file
+
+
+#search-resultbox {
+    position: fixed;
+    left: 25%;
+    right: 25%;
+    bottom: 0;
+    top: 50px;
+    z-index: 1000;
+
+    background: #fff;
+    border: solid 1px #000;
+}
+
+#search-results {
+    margin: 0;
+    padding: 0;
+    list-style: none;
+
+    overflow: auto;
+    max-height: 100%;
+}
+
+#search-results li, #search-results li a {
+    margin: 0;
+    padding: 0;
+    display: block;
+    min-height: 50px;
+    width: 100%;
+
+    color: #333333;
+}
+
+#search-results li a .title, #search-results li .no-results {
+    padding: 10px 20px 5px 20px;
+    display: block;
+
+    text-decoration: none;
+    font-weight: bold;
+    font-size: 120%;
+}
+
+#search-results li a .description {
+    padding: 5px 20px 10px 20px;
+    display: block;
+
+    text-decoration: none;
+    font-weight: normal;
+    font-size: 90%;
+    border-bottom: solid 1px #dddddd;
+}
+
+#search-results li a:hover, #search-results li a.selected {
+    background: #44B5F6;
+    text-decoration: none;
+}
+
+.navbar-form {
+    width: 50%;
+    max-width: 350px;
+}
+
+.navbar-form div, .navbar-form .form-control {
+    width: 100%;
+}
+

extensions/apidoc/templates/bootstrap/layouts/main.php

@@ -73,9 +73,95 @@ $this->beginPage();
         'view' => $this,
         'params' => [],
     ]);
+?>
+<div class="navbar-form navbar-left" role="search">
+  <div class="form-group">
+    <input id="searchbox" type="text" class="form-control" placeholder="Search">
+  </div>
+</div>
+<?php
+    $this->registerJsFile('./jssearch.index.js', 'yii\apidoc\templates\bootstrap\assets\JsSearchAsset');
+    $this->registerJs(<<<JS
+
+$('#searchbox').focus();
+
+$(document).on("keyup", function(event) {
+    if (event.which == 27) {
+        $('#search-resultbox').hide();
+    }
+});
+
+$('#searchbox').on("keyup", function(event) {
+    var query = $(this).val();
+
+    if (query == '' || event.which == 27) {
+        $('#search-resultbox').hide();
+        return;
+    } else if (event.which == 13) {
+        var selectedLink = $('#search-resultbox a.selected');
+        if (selectedLink.length != 0) {
+            document.location = selectedLink.attr('href');
+            return;
+        }
+    } else if (event.which == 38 || event.which == 40) {
+        $('#search-resultbox').show();
+
+        var selected = $('#search-resultbox a.selected');
+        if (selected.length == 0) {
+            $('#search-results').find('a').first().addClass('selected');
+        } else {
+            var next;
+            if (event.which == 40) {
+                next = selected.parent().next().find('a').first();
+            } else {
+                next = selected.parent().prev().find('a').first();
+            }
+            if (next.length != 0) {
+                var resultbox = $('#search-results');
+                var position = next.position();
+
+//              TODO scrolling is buggy and jumps around
+//                resultbox.scrollTop(Math.floor(position.top));
+//                console.log(position.top);
+
+                selected.removeClass('selected');
+                next.addClass('selected');
+            }
+        }
+
+        return;
+    }
+    $('#search-resultbox').show();
+    $('#search-results').html('<li><span class="no-results">No results</span></li>');
+
+    var result = $.jssearch.search(query);
+
+    if (result.length > 0) {
+        var i = 0;
+        var resHtml = '';
+
+        for (var key in result) {
+            if (i++ > 20) {
+                break;
+            }
+            resHtml = resHtml +
+            '<li><a href="' + result[key].file.u.substr(3) +'"><span class="title">' + result[key].file.t + '</span>' +
+            '<span class="description">' + result[key].file.d + '</span></a></li>';
+        }
+        $('#search-results').html(resHtml);
+    }
+});
+JS
+);
+
     NavBar::end();
     ?>
 
+    <div id="search-resultbox" style="display: none;">
+        <ul id="search-results">
+        </ul>
+    </div>
+
     <?= $content ?>
 
 </div>