Javascript chrome-如何使用dom和js在popup.html中显示图像
我正在做一个项目,我需要在chrome扩展弹出窗口上显示当前所选标签网站的所有图像,我尝试了很多方法,但弹出窗口总是显示为一个小弹出窗口,上面没有任何内容 代码如下: Dom.js:Javascript chrome-如何使用dom和js在popup.html中显示图像,javascript,image,google-chrome,dom,popup,Javascript,Image,Google Chrome,Dom,Popup,我正在做一个项目,我需要在chrome扩展弹出窗口上显示当前所选标签网站的所有图像,我尝试了很多方法,但弹出窗口总是显示为一个小弹出窗口,上面没有任何内容 代码如下: Dom.js: chrome.extension.onRequest.addListener(function(request, sender, sendResponse) { if (request.action == "getDOM") sendResponse({dom: document.body.getElements
chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
if (request.action == "getDOM")
sendResponse({dom: document.body.getElementsByTagName("img")});
else
sendResponse({}); // Send nothing..
});
Manifest.json:
{
"manifest_version": 2,
"name": "PrintIt",
"version": "1.0",
"description": "Partilha conteudo com redes sociais",
"browser_action": {
"default_icon": "icon.png",
"default_popup": "popup.html"
},
"permissions": [
"tabs"
],
"content_scripts": [{
"matches": [
"http://www.google.com/*"
],
"js": [
"dom.js"
]
}]
}
Popup.html:
<html>
<head>
<script>
chrome.tabs.getSelected(null, function(tab) {
// Send a request to the content script.
chrome.tabs.sendRequest(tab.id, {action: "getDOM"}, function(response) {
document.write(response.dom);
});
});
</script>
</head>
<body>
</body>
</html>
不久前我遇到了同样的问题。只是禁止将脚本代码放在popup.html中,这样它就不起作用了。将代码完全放在dom.js中,一切都会好起来。我可以简单地创建popup.html“”并使用“chrome.tabs.getSelected”(null,function(tab){//向content script.chrome.tabs.sendRequest(tab.id,{action:“getDOM”},function(response){document write(response.dom);}创建一个popup.js吗);'是的,您可以在popup.html的标题中定义“”-当弹出窗口出现时(您单击图标),此脚本将自动运行,而不需要其他巫毒;)我不确定你的剧本到底是做什么的——看起来我是在一个更简单的男人身上工作。还要记住,清单中定义的所有脚本都可以访问当前页面DOM。
Port error: Could not establish connection. Receiving end does not exist. miscellaneous_bindings:236
chromeHidden.Port.dispatchOnDisconnect miscellaneous_bindings:236
Error in event handler for 'undefined': Cannot read property 'dom' of
undefined TypeError: Cannot read property 'dom' of undefined
at chrome-extension://cfboppmcojfddlkbpohfnnnkogpeflgk/popup.js:4:23
at miscellaneous_bindings:281:11
at chrome.Event.dispatchToListener (event_bindings:390:21)
at chrome.Event.dispatch_ (event_bindings:376:27)
at chrome.Event.dispatch (event_bindings:396:17)
at Object.chromeHidden.Port.dispatchOnDisconnect (miscellaneous_bindings:239:27) event_bindings:380