如何检测已添加的搜索提供程序？

Question

I'm trying to build a feature like whenever a user comes to my site, I have added an option to add default search provider in their browser. 我正在尝试构建一个功能，例如每当用户访问我的网站时，我都添加了一个选项，以在其浏览器中添加默认搜索提供程序。 I have written a code like this for Firefox - 我已经为Firefox编写了这样的代码-

<script>
  $(document).ready(function () {
    var isFirefox = typeof InstallTrigger !== 'undefined';

    if (isFirefox === false) {
        $("#set-susper-default").remove();
        $(".input-group-btn").addClass("align-search-btn");
        $("#navbar-search").addClass("align-navsearch-btn");
    }

    if (window.external && window.external.IsSearchProviderInstalled) {
        var isInstalled = window.external.IsSearchProviderInstalled("http://susper.com");

        if (!isInstalled) {
            $("#set-susper-default").show();
        }
    }

    $("#install-susper").on("click", function () {
        window.external.AddSearchProvider("http://susper.com/susper.xml");
    });

    $("#cancel-installation").on("click", function () {
        $("#set-susper-default").remove();
    });
});
</script>

User clicks on the install button and script runs and the site is added in search provider list. 用户单击安装按钮，脚本将运行，并且该站点已添加到搜索提供程序列表中。 If a user refreshes or again comes to my site, this feature again come. 如果用户刷新或再次访问我的网站，则此功能再次出现。 How should I detect it is already added so that whenever a user comes to my site next time it does not appear. 我应该如何检测它已被添加，以便每当用户下次访问我的网站时它都不会出现。

It would be great help if someone can help me out. 如果有人可以帮助我，那将是很大的帮助。 Thanks :) 谢谢：）

Answer 1

Unfortunately you can't use IsSearchProviderInstalled and AddSearchProvider . 不幸的是，您不能使用IsSearchProviderInstalled和AddSearchProvider 。 They are considered no-ops in Chrome, and should do nothing as HTML Standard describes, more info here: https://www.chromestatus.com/feature/5672001305837568 . 它们在Chrome浏览器中被视为无操作对象，并且不应该执行HTML标准所描述的任何操作，更多信息请参见： https : //www.chromestatus.com/feature/5672001305837568 。 For now AddSearchProvider works in Firefox, but IsSearchProviderInstalled will return always 0. You can try it by going to https://google.com and adding this code: external.IsSearchProviderInstalled("https://www.google.com"); 现在AddSearchProvider工作在Firefox，但IsSearchProviderInstalled始终返回0。您可以去尝试它https://google.com并添加以下代码： external.IsSearchProviderInstalled("https://www.google.com"); in the console. 在控制台中。

Instead you should try adding search plugin autodiscovery into your webpage. 相反，您应该尝试将搜索插件自动发现添加到您的网页中。 To do so just add the <link> element to the <head> : 为此，只需将<link>元素添加到<head> ：

<link rel="search"
      type="application/opensearchdescription+xml"
      title="searchTitle"
      href="pluginURL">

More info about it here: https://developer.mozilla.org/en-US/Add-ons/Creating_OpenSearch_plugins_for_Firefox#Autodiscovery_of_search_plugins 此处的更多信息： https : //developer.mozilla.org/zh-CN/Add-ons/Creating_OpenSearch_plugins_for_Firefox#Autodiscovery_of_search_plugins

如何检测已添加的搜索提供程序？

问题描述

1 个解决方案

解决方案1
0 2017-05-29 14:32:46

如何检测已添加的搜索提供程序？

问题描述

1 个解决方案

解决方案1 0 2017-05-29 14:32:46

解决方案1
0 2017-05-29 14:32:46