在javascript中为嵌入SVG的元素添加点击事件 [英] Add click event on elements of an embedded SVG in javascript

问题描述

我从维基百科得到了这个SVG图片。 http://upload.wikimedia.org/wikipedia/commons/e/e8/ BlankMap-World6-Equirectangular.svg
我使用以下代码将其嵌入到网站中：

I got this SVG image from Wikipedia. http://upload.wikimedia.org/wikipedia/commons/e/e8/BlankMap-World6-Equirectangular.svg I embedded it into a website using this code:

<embed src="circle1.svg" type="image/svg+xml" />

如果运行此操作，您可以检查元素并查看源代码
所有国家在图像中是单独的元素
如果我点击一个国家，我想提醒该国的id（每个国家都有一个两个字母的id在SVG。
有人知道一种方法

If you run this, you can inspect the element and see the source code All countries in the image are seperate elements If I click on a country, I want to alert the id of that country (every country has got an id of two letters in the SVG. Does anyone know a way to do this? Would it be easier if I place it into a element?

推荐答案

好的使用你的意见我发现了一个答案给我问题，我在svg本身添加了这个代码。

Okay using your comments I found an answer to my problem. I added this code in the svg itself.

<script type="text/javascript"> <![CDATA[
    function addClickEvents() {
        var countries = document.getElementById('svg1926').childNodes;
        var i;
        for (i=0;i<countries.length;i++){
            countries[i].addEventListener('click', showCountry);
        }
    }

    function showCountry(e) {
        var node = e.target;
        if (node.id != 'ocean') {
            node = getCorrectNode(node);
        }
        alert(node.id);
    }

    function getCorrectNode(node) {
        if (node.id.length == 2 || node.id == 'lakes') {
            return node;
        }
        return getCorrectNode(node.parentNode);
    }
]]> </script>

函数addClickEvents在svg加载时触发。
但是我还有另一个问题。我必须使用

The function addClickEvents is triggered when the svg loads. But I still have another problem with this. I have to embed this svg (with the code) into a HTML document using

<embed src="circle1.svg" type="image/svg+xml" />

而不是警告id，我必须将其放入HTML文档中的div。
如何从svg获取此ID？

Instead of alerting the id, I have to place it into a div in the HTML document. How do I get this id from the svg?

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