feature: innerText property support

Albert · Albert · commit a430293a6ca3 · 2020-07-17T14:38:26.000+08:00
related: paquettg#222 related: !225 ```html <html> <head></head> <body class="" style="" data-gr-c-s-loaded="true"> 123 <a>456789</a> <span>101112</span> </body> <html> ``` ```javascript document.body.innerText; ``` output ``` 123 456789 101112 ``` ```PHP $html = <<<EOF <body class="" style="" data-gr-c-s-loaded="true"> 123 <a>456789</a> <span>101112</span> </body> EOF; $dom = new Dom(); $dom->load($html); echo $dom->innerText; ``` asset output ``` 123 456789 101112 ```
diff --git a/src/PHPHtmlParser/Dom/Node/AbstractNode.php b/src/PHPHtmlParser/Dom/Node/AbstractNode.php
@@ -114,6 +114,8 @@ public function __get(string $key)
                 return $this->outerHtml();
             case 'innerhtml':
                 return $this->innerHtml();
+            case 'innertext':
+                return $this->innerText();
             case 'text':
                 return $this->text();
             case 'tag':
diff --git a/src/PHPHtmlParser/Dom/Node/HtmlNode.php b/src/PHPHtmlParser/Dom/Node/HtmlNode.php
@@ -27,6 +27,13 @@ class HtmlNode extends InnerNode
      */
     protected $outerHtml;
 
+    /**
+     * Remembers what the innerText was if it was scanned previously.
+     * 
+     * @var ?string
+     */
+    protected $innerText = null;
+
     /**
      * Remembers what the text was if it was scanned previously.
      *
@@ -111,6 +118,21 @@ public function innerHtml(): string
         return $string;
     }
 
+    /**
+     * Gets the inner text of this node.
+     * @return string
+     * @throws ChildNotFoundException
+     * @throws UnknownChildTypeException
+     */
+    public function innerText(): string
+    {
+        if (is_null($this->innerText)) {
+            $this->innerText = strip_tags($this->innerHtml());
+        }
+
+        return $this->innerText;
+    }
+
     /**
      * Gets the html of this node, including it's own
      * tag.
diff --git a/tests/DomTest.php b/tests/DomTest.php
@@ -330,6 +330,16 @@ public function testEmptyAttribute()
         $this->assertEquals(1, \count($items));
     }
 
+    public function testInnerText()
+    {
+        $html = <<<EOF
+<body class="" style="" data-gr-c-s-loaded="true">123<a>456789</a><span>101112</span></body>
+EOF;
+        $dom = new Dom();
+        $dom->loadStr($html);
+        $this->assertEquals($dom->innerText, "123456789101112");
+    }
+
     public function testMultipleSquareSelector()
     {
         $dom = new Dom();
diff --git a/tests/Node/HtmlTest.php b/tests/Node/HtmlTest.php
@@ -323,6 +323,20 @@ public function testTextLookInChildren()
         $this->assertEquals('Please click me!', $node->text(true));
     }
 
+    public function testInnerText()
+    {
+        $node = new HtmlNode('div');
+        $node->addChild(new TextNode('123 '));
+        $anode = new HtmlNode('a');
+        $anode->addChild(new TextNode('456789 '));
+        $span_node = new HtmlNode('span');
+        $span_node->addChild(new TextNode('101112'));
+
+        $node->addChild($anode);
+        $node->addChild($span_node);
+        $this->assertEquals($node->innerText(), '123 456789 101112');
+    }
+
     public function testTextLookInChildrenAndNoChildren()
     {
         $p = new HtmlNode('p');
