在我的 AngularJS 应用程序中,我尝试将 Facebook 原生网络广告添加到我的 View 之一。我按照in the documentation概述的步骤进行操作生成必要的 HTML 片段并将其添加到我的 View 中。
我的应用程序正在使用 ui-router 来解析路由。当访问包含此代码片段的路由/ View 时,不会显示 FB 广告,也不会调用任何回调(onAdLoaded 或 onAdError)。
Facebook 生成的 HTML 片段(添加到 View ):
<div style="display:none; position: relative;">
<iframe style="display:none;"></iframe>
<script type="text/javascript">
var data = {
placementid: 'xxxxxxxxxxx_xxxxxxxx',
format: 'native',
testmode: true,
onAdLoaded: function (element) {
console.log('Audience Network ad loaded');
element.style.display = 'block';
},
onAdError: function (errorCode, errorMessage) {
console.log('Audience Network error (' + errorCode + ') ' + errorMessage);
}
};
(function (w, l, d, t) {
var a = t();
var b = d.currentScript || (function () {
var c = d.getElementsByTagName('script');
return c[c.length - 1];
})();
var e = b.parentElement;
e.dataset.placementid = data.placementid;
var f = function (v) {
try {
return v.document.referrer;
} catch (e) {
}
return '';
};
var g = function (h) {
var i = h.indexOf('/', h.indexOf('://') + 3);
if (i === -1) {
return h;
}
return h.substring(0, i);
};
var j = [l.href];
var k = false;
var m = false;
if (w !== w.parent) {
var n;
var o = w;
while (o !== n) {
var h;
try {
m = m || (o.$sf && o.$sf.ext);
h = o.location.href;
} catch (e) {
k = true;
}
j.push(h || f(n));
n = o;
o = o.parent;
}
}
var p = l.ancestorOrigins;
if (p) {
if (p.length > 0) {
data.domain = p[p.length - 1];
} else {
data.domain = g(j[j.length - 1]);
}
}
data.url = j[j.length - 1];
data.channel = g(j[0]);
data.width = screen.width;
data.height = screen.height;
data.pixelratio = w.devicePixelRatio;
data.placementindex = w.ADNW && w.ADNW.Ads ? w.ADNW.Ads.length : 0;
data.crossdomain = k;
data.safeframe = !!m;
var q = {};
q.iframe = e.firstElementChild;
var r = 'https://www.facebook.com/audiencenetwork/web/?sdk=5.3';
for (var s in data) {
q[s] = data[s];
if (typeof(data[s]) !== 'function') {
r += '&' + s + '=' + encodeURIComponent(data[s]);
}
}
q.iframe.src = r;
q.tagJsInitTime = a;
q.rootElement = e;
q.events = [];
w.addEventListener('message', function (u) {
if (u.source !== q.iframe.contentWindow) {
return;
}
u.data.receivedTimestamp = t();
if (this.sdkEventHandler) {
this.sdkEventHandler(u.data);
} else {
this.events.push(u.data);
}
}.bind(q), false);
q.tagJsIframeAppendedTime = t();
w.ADNW = w.ADNW || {};
w.ADNW.Ads = w.ADNW.Ads || [];
w.ADNW.Ads.push(q);
w.ADNW.init && w.ADNW.init(q);
})(window, location, document, Date.now || function () {
return +new Date;
});
</script>
<script type="text/javascript" src="https://connect.facebook.net/en_US/fbadnw.js" async></script>
<style>
.thirdPartyRoot {
background-color: white;
color: #444;
border: 1px solid #ccc;
border-left: 0;
border-right: 0;
font-family: sans-serif;
font-size: 14px;
line-height: 16px;
width: 320px;
text-align: left;
position: relative;
}
.thirdPartyMediaClass {
width: 320px;
height: 168px;
margin: 12px 0;
}
.thirdPartySubtitleClass {
font-size: 18px;
-webkit-line-clamp: 1;
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
height: 16px;
-webkit-box-orient: vertical;
}
.thirdPartyTitleClass {
padding-right: 12px;
line-height: 18px;
-webkit-line-clamp: 2;
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
height: 36px;
-webkit-box-orient: vertical;
}
.thirdPartyCallToActionClass {
background-color: #416BC4;
color: white;
border-radius: 4px;
padding: 6px 20px;
float: right;
text-align: center;
text-transform: uppercase;
font-size: 11px;
}
.fbDefaultNativeAdWrapper {
font-size: 12px;
line-height: 14px;
margin: 12px 0;
height: 36px;
vertical-align: top;
}
</style>
<div class="thirdPartyRoot">
<a class="fbAdLink">
<div class="fbAdMedia thirdPartyMediaClass"></div>
<div class="fbAdSubtitle thirdPartySubtitleClass"></div>
<div class="fbDefaultNativeAdWrapper">
<div class="fbAdCallToAction thirdPartyCallToActionClass"></div>
<div class="fbAdTitle thirdPartyTitleClass"></div>
</div>
</a>
</div>
</div>
我注意到 Facebook Audience Network JS 是异步加载的,并怀疑我可能存在导致问题的竞争条件。
<script type="text/javascript" src="https://connect.facebook.net/en_US/fbadnw.js" async></script>
为了测试这一点,我已将 FB 代码片段移出我的 View 并移至我的 SPA index.html 中。广告按预期显示。加载脚本后,fbadnw.js 脚本会调用什么回调? FB 生成的代码中的闭包是否在加载 fbadnw.js 之前被调用?
index.html(有效)
<!DOCTYPE html>
<html ng-app="kcl-app">
<head>
<base href="/">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title ng-bind="pageTitle"></title>
</head>
<body>
<!-- ui-router view -->
<div ui-view></div>
<!-- FB Begin -->
<div class="fb-native">
<div style="display:none; position: relative;">
<iframe style="display:none;"></iframe>
<script type="text/javascript">
var data = {
placementid: 'xxxxxxxxxxx_xxxxxxxx',
format: 'native',
testmode: true,
onAdLoaded: function (element) {
console.log('Audience Network ad loaded');
element.style.display = 'block';
},
onAdError: function (errorCode, errorMessage) {
console.log('Audience Network error (' + errorCode + ') ' + errorMessage);
}
};
(function (w, l, d, t) {
var a = t();
var b = d.currentScript || (function () {
var c = d.getElementsByTagName('script');
return c[c.length - 1];
})();
var e = b.parentElement;
e.dataset.placementid = data.placementid;
var f = function (v) {
try {
return v.document.referrer;
} catch (e) {
}
return '';
};
var g = function (h) {
var i = h.indexOf('/', h.indexOf('://') + 3);
if (i === -1) {
return h;
}
return h.substring(0, i);
};
var j = [l.href];
var k = false;
var m = false;
if (w !== w.parent) {
var n;
var o = w;
while (o !== n) {
var h;
try {
m = m || (o.$sf && o.$sf.ext);
h = o.location.href;
} catch (e) {
k = true;
}
j.push(h || f(n));
n = o;
o = o.parent;
}
}
var p = l.ancestorOrigins;
if (p) {
if (p.length > 0) {
data.domain = p[p.length - 1];
} else {
data.domain = g(j[j.length - 1]);
}
}
data.url = j[j.length - 1];
data.channel = g(j[0]);
data.width = screen.width;
data.height = screen.height;
data.pixelratio = w.devicePixelRatio;
data.placementindex = w.ADNW && w.ADNW.Ads ? w.ADNW.Ads.length : 0;
data.crossdomain = k;
data.safeframe = !!m;
var q = {};
q.iframe = e.firstElementChild;
var r = 'https://www.facebook.com/audiencenetwork/web/?sdk=5.3';
for (var s in data) {
q[s] = data[s];
if (typeof(data[s]) !== 'function') {
r += '&' + s + '=' + encodeURIComponent(data[s]);
}
}
q.iframe.src = r;
q.tagJsInitTime = a;
q.rootElement = e;
q.events = [];
w.addEventListener('message', function (u) {
if (u.source !== q.iframe.contentWindow) {
return;
}
u.data.receivedTimestamp = t();
if (this.sdkEventHandler) {
this.sdkEventHandler(u.data);
} else {
this.events.push(u.data);
}
}.bind(q), false);
q.tagJsIframeAppendedTime = t();
w.ADNW = w.ADNW || {};
w.ADNW.Ads = w.ADNW.Ads || [];
w.ADNW.Ads.push(q);
w.ADNW.init && w.ADNW.init(q);
})(window, location, document, Date.now || function () {
return +new Date;
});
</script>
<script type="text/javascript" src="https://connect.facebook.net/en_US/fbadnw.js" async></script>
<style>
.thirdPartyRoot {
background-color: white;
color: #444;
border: 1px solid #ccc;
border-left: 0;
border-right: 0;
font-family: sans-serif;
font-size: 14px;
line-height: 16px;
width: 320px;
text-align: left;
position: relative;
}
.thirdPartyMediaClass {
width: 320px;
height: 168px;
margin: 12px 0;
}
.thirdPartySubtitleClass {
font-size: 18px;
-webkit-line-clamp: 1;
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
height: 16px;
-webkit-box-orient: vertical;
}
.thirdPartyTitleClass {
padding-right: 12px;
line-height: 18px;
-webkit-line-clamp: 2;
overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
height: 36px;
-webkit-box-orient: vertical;
}
.thirdPartyCallToActionClass {
background-color: #416BC4;
color: white;
border-radius: 4px;
padding: 6px 20px;
float: right;
text-align: center;
text-transform: uppercase;
font-size: 11px;
}
.fbDefaultNativeAdWrapper {
font-size: 12px;
line-height: 14px;
margin: 12px 0;
height: 36px;
vertical-align: top;
}
</style>
<div class="thirdPartyRoot">
<a class="fbAdLink">
<div class="fbAdMedia thirdPartyMediaClass"></div>
<div class="fbAdSubtitle thirdPartySubtitleClass"></div>
<div class="fbDefaultNativeAdWrapper">
<div class="fbAdCallToAction thirdPartyCallToActionClass"></div>
<div class="fbAdTitle thirdPartyTitleClass"></div>
</div>
</a>
</div>
</div>
</div>
<!-- FB End -->
</body>
</html>
最佳答案
我通过编辑 FB 提供的样板代码解决了这个问题。简而言之,所提供的闭包(缩小的)尝试:
- 找到将在其中呈现广告的 iframe 元素并将其设置为 src 和其他属性。
- 附加一个事件处理程序来监听发布消息“message”。
- 使用 FB Audience Network (ADNW.init()) 初始化广告
我的问题在于该代码在步骤 1 中所做的假设。
var b = d.currentScript || (function() {
var c = d.getElementsByTagName('script');
return c[c.length - 1];
})();
var e = b.parentElement;
上面的代码试图找到这个DIV。
<div style="display:none; position: relative;">
它首先尝试找到页面上最后一个脚本元素的父元素来实现此目的。这很脆弱,就我而言,不起作用。我的文档中添加的最后一个脚本元素不是此代码所期望的。
我修改了此代码以通过 ID 显式选择正确的元素。
添加了一个 ID 来包含 DIV:
<div id="fb-ad-container" style="display:none; position: relative;">
简化 DOM 解析代码(步骤 1)以通过 ID 选择此 DIV:
var e = d.getElementById("fb-ad-container");
通过按 ID 选择正确的元素,我能够减少定位当前脚本元素的需要。脚本的其余部分按预期运行。
关于javascript - 在 AngularJS View 中的移动网络中显示原生广告时出现问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39458776/