如何使用键盘上的箭头键来触发博客内的导航（上一页/下一页）链接

发布于 2024-08-20 23:48:35 字数 991 浏览 3 评论 0原文

到目前为止，我拼凑在一起的脚本如下所示：

<script type="text/javascript">
/* KEYNAV */
document.onkeydown = function(e) {
if (! e) var e = window.event;
var code = e.charCode ? e.charCode : e.keyCode;
if (! e.shiftKey && ! e.ctrlKey && ! e.altKey && ! e.metaKey) {
if (code == Event.KEY_LEFT) {
if ($('previous_page_link')) location.href = $('previous_page_link').href;
} else if (code == Event.KEY_RIGHT) {
if ($('next_page_link')) location.href = $('next_page_link').href;}
}
}); 
</script>

我的 html 如下所示：

<p>
{block:PreviousPage}
<a id="previous_page_link" href="{PreviousPage}">PREVIOUS PAGE</a> 
{/block:PreviousPage}

{block:NextPage}
<a id="next_page_link" href="{NextPage}">NEXT PAGE</a>
{/block:NextPage}
</p>

{PreviousPage} / {NextPage} 代码表示动态页面链接，这些链接根据您所在的页面而有所不同。这个特定问题是针对 tumblr 的，但通常也是这样：

有没有办法让我的左右箭头键触发这些动态链接？

感谢您的阅读，非常感谢您对此提供的任何帮助。

原文

the script i've pieced together so far looks like this:

<script type="text/javascript">
/* KEYNAV */
document.onkeydown = function(e) {
if (! e) var e = window.event;
var code = e.charCode ? e.charCode : e.keyCode;
if (! e.shiftKey && ! e.ctrlKey && ! e.altKey && ! e.metaKey) {
if (code == Event.KEY_LEFT) {
if ($('previous_page_link')) location.href = $('previous_page_link').href;
} else if (code == Event.KEY_RIGHT) {
if ($('next_page_link')) location.href = $('next_page_link').href;}
}
}); 
</script>

and my html looks like this:

<p>
{block:PreviousPage}
<a id="previous_page_link" href="{PreviousPage}">PREVIOUS PAGE</a> 
{/block:PreviousPage}

{block:NextPage}
<a id="next_page_link" href="{NextPage}">NEXT PAGE</a>
{/block:NextPage}
</p>

the {PreviousPage} / {NextPage} code represents dynamic page links which are different depending on which page you are on. this particular question is specific to tumblr, but generally as well:

is there a way to get my left and right arrow keys to trigger these dynamic links?

thank you for reading and any help with this is greatly appreciated.

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笨笨の傻瓜 2024-08-27 23:48:35

function leftArrowPressed() {
   // Your stuff here
}

function rightArrowPressed() {
   // Your stuff here
}

document.onkeydown = function(evt) {
    evt = evt || window.event;
    switch (evt.keyCode) {
        case 37:
            leftArrowPressed();
            break;
        case 39:
            rightArrowPressed();
            break;
    }
};

function leftArrowPressed() {
   // Your stuff here
}

function rightArrowPressed() {
   // Your stuff here
}

document.onkeydown = function(evt) {
    evt = evt || window.event;
    switch (evt.keyCode) {
        case 37:
            leftArrowPressed();
            break;
        case 39:
            rightArrowPressed();
            break;
    }
};

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琉璃繁缕 2024-08-27 23:48:35

使用它来告诉您对象的 keyIdentifier 属性。

<html>
<head>

<script type="text/javascript">
  document.onkeydown = function() {
  alert (event.keyIdentifier);
}; 
</script>
</head>
<body>
</body>
</html>

然后，您可以使用 if-then 逻辑来忽略您不感兴趣的所有按键，并将正确的行为连接到您感兴趣的按键。

下面将向您的链接分配左右箭头键（基于锚点/链接元素的 id）。

<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script>

<script type="text/javascript">
    $(document).ready(function() {
            document.onkeydown = function() 
                {
                    var j = event.keyIdentifier
                    if (j == "Right")
                        window.location = nextUrl
                    else if (j == "Left")
                        window.location = prevUrl            
                        }
                   });

      $(document).ready(function() {
                    var nextPage = $("#next_page_link")
                    var prevPage = $("#previous_page_link")
                    nextUrl = nextPage.attr("href")
                    prevUrl = prevPage.attr("href")
                });

</script>
</head>
<body>
<p>
    <a id="previous_page_link" href="http://www.google.com">Google</a> 
    <a id="next_page_link" href="http://www.yahoo.com">Yahoo</a>
</p>
</body>
</html>

Use this to tell you the keyIdentifier attribute of the object.

<html>
<head>

<script type="text/javascript">
  document.onkeydown = function() {
  alert (event.keyIdentifier);
}; 
</script>
</head>
<body>
</body>
</html>

Then you can use if-then logic to ignore all key presses you aren't interested in, and wire the correct behavior to the ones you are.

The following will assign the left and right arrow keys to your links (based on the id of the anchor/link elements).

<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.min.js"></script>

<script type="text/javascript">
    $(document).ready(function() {
            document.onkeydown = function() 
                {
                    var j = event.keyIdentifier
                    if (j == "Right")
                        window.location = nextUrl
                    else if (j == "Left")
                        window.location = prevUrl            
                        }
                   });

      $(document).ready(function() {
                    var nextPage = $("#next_page_link")
                    var prevPage = $("#previous_page_link")
                    nextUrl = nextPage.attr("href")
                    prevUrl = prevPage.attr("href")
                });

</script>
</head>
<body>
<p>
    <a id="previous_page_link" href="http://www.google.com">Google</a> 
    <a id="next_page_link" href="http://www.yahoo.com">Yahoo</a>
</p>
</body>
</html>

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