把js分离出来,返回json数据

hotfix/远程访问多媒体中心
尹诚诚 8 years ago
parent eabf44005f
commit 7a8d571346

@ -53,7 +53,8 @@ class Index extends CI_Controller {
//
//提取和下载所有JS脚本包括链接文件和页面脚本
$link_js_array = array();
$js_content = '';
$js_inline_content = '';
$js_jquery_content = '';
foreach ($html_object->find('script') as $link_script) {
if (!empty($link_script->src)) {
$link_js_array[] = $link_script->src;
@ -62,22 +63,19 @@ class Index extends CI_Controller {
//网页内的js不需要提取
//$js_content.= $link_script->innertext;//js的内容
// $js_content.= $link_script;//js的内容包含<script>
//$link_script_content = $link_script;
//含有$表示调用了jquery的函数添加延迟加载defer
// if (strpos($link_script_content, '$') !== FALSE) {
// $link_script_content = str_replace('defer', 'defer', $link_script_content);
// $link_script_content = str_replace('<script', '<script defer', $link_script_content);
// $js_content.= $link_script_content;
// } else {
$js_content.= $link_script; //js的内容包含<script>
// }
if (strpos($link_script, '$') !== FALSE) {
$js_jquery_content.= $link_script->innertext;
} else {
$js_inline_content.= $link_script; //js的内容包含<script>
}
$link_script->outertext = ''; //删除js移动到页底
}
}
$js_scr_content = '';
foreach ($link_js_array as $item) {
//$js_content.= GET_HTTP($this->format_url($item, $websitehost));
$js_scr_content.= GET_HTTP($this->format_url($item, $websitehost));
}
//echo $js_content;
//把网页内容和css提交到purifycss处理
@ -105,15 +103,15 @@ class Index extends CI_Controller {
$lastload_js.='<link rel="stylesheet" type="text/css" href="' . $item . '"/>';
}
$lastload_js.='</noscript><script>var loadDeferredStyles=function(){var addStylesNode=document.getElementById("deferred-styles");var replacement=document.createElement("div");replacement.innerHTML=addStylesNode.textContent;document.body.appendChild(replacement);addStylesNode.parentElement.removeChild(addStylesNode)};var raf=requestAnimationFrame||mozRequestAnimationFrame||webkitRequestAnimationFrame||msRequestAnimationFrame;if(raf){raf(function(){window.setTimeout(loadDeferredStyles,0)})}else{window.addEventListener("load",loadDeferredStyles)};</script>';
//把js移动到页面底部
foreach ($link_js_array as $item) {
$lastload_js.='<script src="' . $item . '"></script>';
}
$lastload_js.=$js_content;
$js_content = $js_scr_content . $js_jquery_content;
//延迟加载js需要把返回的js代码保存到一个文件中然后替换占位符以便加载js文件
$lastload_js.='<script defer src="##DEFERSCRIPTDEFER##"></script>';
$lastload_js.=$js_inline_content;
$html_object = str_replace('</body>', $lastload_js . '</body>', $html_object);
}
echo $html_object;
echo json_encode(array('result' => 'ok', 'data' => array('html_object' => $html_object, 'js_content' => $js_content)));
}
//格式化url保证请求的URL有域名//更换为对应的域名路径

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