问题在Xul窗口上添加加一个按钮
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25-10-2019 - |
题
我正在尝试在Xul窗口上添加一个按钮,但是我会收到此错误:
Error: Permission denied for <https://plusone.google.com> to call method ChromeWindow.postMessage
Source file: https://ssl.gstatic.com/webclient/js/gc/22431124-0a127465/googleapis.client__plusone.js
Line: 14
我正在添加一个iframe https://plusone.google.com/u/0/_/+1/fastbutton?url=
...
有没有办法添加 +1
Xul窗口上的按钮,使其接受 postMessage
?
我要开发的插件是在图像中。唯一的问题是,由于权限,它不会注册点击。
bootstrap.js
(Bootstrap-vsdoc.js)
/// <reference path="bootstrap-vsdoc.js" />
/// <summary>
/// Made by Bruno Leonardo Michels
/// </summary>
var watcher = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(Components.interfaces.nsIWindowWatcher);
var listenOpen = {
observe : function(cWindow, cEvent) {
if (cEvent != "domwindowopened") return;
cWindow.addEventListener("load", start, false);
}
};
function startup(data, reason) {
watcher.registerNotification(listenOpen);
var mWindows = watcher.getWindowEnumerator();
while (mWindows.hasMoreElements()) {
start(mWindows.getNext());
}
}
function shutdown(data, reason) {
watcher.unregisterNotification(listenOpen);
var mWindows = watcher.getWindowEnumerator();
while (mWindows.hasMoreElements()) {
end(mWindows.getNext());
}
}
function install(data, reason) {
}
function uninstall(data, reason) {
}
/// #region Methods
function getWindow(cWindow)
{
try
{
if (cWindow instanceof Components.interfaces.nsIDOMEvent)
{
cWindow = cWindow.currentTarget;
}
if (cWindow.document.documentElement.getAttribute("windowtype") != "navigator:browser")
return;
}
catch(ex) { }
return cWindow;
}
function ajaxGet(cWindow, url, cb)
{
var xmlhttp;
xmlhttp = new cWindow.XMLHttpRequest();
xmlhttp.open("GET", url, true);
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
cb(xmlhttp);
}
};
xmlhttp.send();
}
var eventList = [];
function bind(gBrowser, cWindow, target, eventName, fn)
{
var ev = function(e) { fn(gBrowser, cWindow, e); };
eventList.push(ev);
target.addEventListener(eventName, eventList[eventList.length-1], false);
}
function unbind(target, eventName, fn)
{
var b = target.removeEventListener ?
function( elem, type, handle ) {
if ( elem.removeEventListener ) {
elem.removeEventListener( type, handle, false );
}
} :
function( elem, type, handle ) {
if ( elem.detachEvent ) {
elem.detachEvent( "on" + type, handle );
}
};
b(target, eventName, fn);
}
function unbindAll(target, eventName)
{
for (var i in eventList)
{
unbind(target, eventName, eventList[i]);
}
}
/// #endregion
/// #region Events
function start(cWindow) {
cWindow = getWindow(cWindow);
if (!cWindow) return;
with (cWindow)
{
bind(gBrowser, cWindow, gBrowser.tabContainer, "TabAttrModified", tabChange);
var window = cWindow;
var document = cWindow.document;
var url = window.location.href;
if (!/^http/i.test(url))url="http://www.orkutmanager.net/";
var urlE= window.encodeURIComponent(url);
var iconsBar = document.getElementById("urlbar-icons");
function insScript(w)
{
var sc = document.createElement("script");
sc.src = "https://apis.google.com/js/plusone.js";
sc.type= "text/javascript";
sc.setAttribute("extension", "plusoneany");
(document.lastChild).appendChild(sc);
}
insScript(this);
insScript(this.parent);
insScript(this.top);
var button = document.createElement("iframe");
button.id = "extensions.plusoneany.button";
button.setAttribute("src", "https://plusone.google.com/u/0/_/+1/fastbutton?url=" + urlE +
"&size=small&count=true&hl=en-US&_methods=onPlusOne%2C_ready%2C_close%2C_open%2C_resizeMe");
button.setAttribute("class", "urlbar-icon extensions-plusoneany");
button.setAttribute("style", "border:0;padding:0;margin:0;width:70px;height:16px;");
iconsBar.insertBefore(button, iconsBar.lastChild);
}
}
function end(cWindow) {
try
{
unbindAll(gBrowser.tabContainer, "TabAttrModified");
}
catch(ex){}
try
{
var elements = cWindow.document.getElementsByClassName("extensions-plusoneany");
for (var i in elements)
{
elements[i].parentNode.removeChild(elements[i]);
}
}
catch(ex){}
}
function tabChange(gBrowser, cWindow, e) {
var win = gBrowser.selectedBrowser.contentWindow;
var uns = gBrowser.selectedBrowser.contentWindow.wrappedJSObject;
uns.clearTimeout(uns.PlusOneAnyTimeout);
uns.PlusOneAnyTimeout = uns.setTimeout(function() {
var url = win.location.href;
if (!/^http/i.test(url))url="http://www.orkutmanager.net/";
var urlE= uns.encodeURIComponent(url);
try {
var ifr = cWindow.document.getElementById("extensions.plusoneany.button");
ifr.setAttribute("src", "https://plusone.google.com/u/0/_/+1/fastbutton?url=" + urlE +
"&size=small&count=true&hl=en-US&_methods=onPlusOne%2C_ready%2C_close%2C_open%2C_resizeMe");
}catch(ex){}
}, 500);
}
/// #endregion
解决方案
@systempuntoout是正确的,从理论上讲,将iframe类型属性设置为“内容”应解决此问题。但是,过去我对此有问题。它可能起作用,但我认为Xul在这方面有点越野车。如果是我,我会嵌入Xulu003Cbrowser>元素而不是xulu003Ciframe>并将静态HTML页面加载到浏览器(即通过调用browser.loaduri),其中包含我要运行的代码(在这种情况下,src with src设置为“ https://plusone.google.com ...”) 。这样,您的代码将作为真实内容运行,就像在主浏览器内容窗口中一样。
您可以将HTML页面写入磁盘(由于动态生成iFrame源的一部分),然后使用文件:// url引用它。由于该代码在这种情况下会很短,因此您甚至可以尝试使用数据URI,这可以使您不必将临时文件写入磁盘。
换句话说,您将使用以下方式创建一个HTML文件(在内存或磁盘上)
<html>
<body>
<iframe src="https://plusone.google.com..." />
</body>
</html>
那你会创建一个u003Cbrowser>元素就像您现在为iFrame所做的那样,将其插入XUL文档中,并在其上调用loaduri(),引用HTML文件(通过文件:或数据:URI)。
其他提示
我会尝试指定 类型 添加此行:
ifr.setAttribute("type","content");
我认为这可能会有所帮助,这可能是您遇到的问题。
极端邪恶的答案,但您不能得到 https://apis.google.com/js/plusone.js
然后评估?是Google,可能出了什么问题;