从生成的网址加载图形

本文介绍了从生成的网址加载图形的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想建立一个在线html/css/javascript游乐场.当代码绘制图形时，我希望能够生成一个URL，用户可以使用该URL在浏览器中加载此图形.

I want to build an online html/css/javascript playground. When the code draws a graph, I want to be able to generate a url, with which users could load this graph in a browser.

此刻，在操场上，有一个链接到功能generateUrl的按钮:

At the moment, in the playground, I have a button that links to the function generateUrl:

$scope.generateUrl = function () {
    urls.create({
        // allCode is a string like "<html><body><canvas ...>...</canvas><script>...</script></html>"
        content: $scope.allCode
    }).success(function (url) {
        alert(url._id)
    });
};

然后，我想在浏览器中加载像localhost:3000/urls/58a56d0962bd39979d142e27这样的URL的ID:

Then, I want to load with the id of a url like localhost:3000/urls/58a56d0962bd39979d142e27 in a browser:

app.config(['$stateProvider', function ($stateProvider) {
    $stateProvider
        .state('urls', {
            url: '/urls/{id}',
            template: "{{url.content}}",
            controller: 'UrlCtrl',
            resolve: {
                url: ['$stateParams', 'urls', function ($stateParams, urls) {
                    return urls.get($stateParams.id);
                }]
            }
        })

但是，上面的代码仅显示字符串而不是图形:

However, the above code just shows the string rather than the graph:

此外，它嵌入在我的全局index.ejs的<ui-view></ui-view>中.该行为是预期的，但这不是我希望用户加载www.mysite.com/urls/58a56d0962bd39979d142e27时看到的内容.

Additionally, it is embedded in <ui-view></ui-view> of my global index.ejs. The behaviour is expected, but it is not what I want users to see when they load www.mysite.com/urls/58a56d0962bd39979d142e27.

有人知道如何设置从生成的网址加载图形吗?

Does anyone know how to set up loading a graph from a generated url?

推荐答案

我认为您需要使用Angular的严格的上下文转义服务，又称为$sce.

I believe that you need to use Angular's Strict Contextual Escaping service, more known as $sce.

因此，您可以使用ngBindHtml指令，而不是普通插值.

So, you can either use the ngBindHtml directive, instead of plain interpolation.

<div ng-bind-html="url.content"></div>

或者，您也可以在url解析函数上注入$sce并调用trustAsHtml方法:

Or, you could also inject $sce on your url resolve function and call trustAsHtml method:

resolve: {
    url: ['$sce', '$stateParams', 'urls', function ($sce, $stateParams, urls) {
        return $sce.trustAsHtml(urls.get($stateParams.id));
    }]
}

我不确定如果您的HTML代码包含html和body标签会发生什么.也许您需要删除这些内容.

I'm not sure what's gonna happen if your HTML code contains the html and body tags. Maybe you'll need to remove those.

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