iOS Phonegap多行文字选择bug？
Cha*_*lie 10 html javascript css ios cordova
我正在创建一个Phonegap应用程序,要求用户选择p元素内的文本,然后"复制"修改它的文本给我需要.
但是,在p标签内选择文本时会出现问题.从我的服务器检索文本,其中输出如下:
<p style="white-space:pre-wrap">Proin quis tortor orci. Etiam at risus et justo dignissim congue. Donec congue lacinia dui, a porttitor lectus condimentum laoreet. Nunc eu ullamcorper orci. Quisque eget odio ac lectus
vestibulum faucibus eget in metus. In pellentesque faucibus vestibulum. Nulla at nulla justo, eget luctus tortor. Nulla facilisi.
Duis aliquet egestas purus in blandit. Curabitur vulputate, ligula lacinia scelerisque tempor, lacus lacus ornare ante, ac egestas est urna sit amet arcu. Class aptent taciti sociosqu ad litora
</p>
这将使文本保留换行符而不使用<br/>标签,这些标签目前在我的Javascript中不起作用.
无论如何,当您尝试在此元素中选择文本时,将选择整个p元素.这是选择单词时发生的转换,然后移动边界以选择更多文本:
注意:第一个序列中的文本不同,因为我使用不同的文本截取屏幕截图,但效果仍然相同.
我不能为此提供一个jsFiddle,因为它似乎只在Phonegap中复制,但我上传了我的源代码来测试:http://cl.ly/2w0O1d3l3h17
项目中没有JS,但HTML和CSS看起来像这样:
HTML:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1"/>
<link rel="stylesheet" type="text/css" href="css/index.css" />
<title>Hello World</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript" src="cordova-2.5.0.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script type="text/javascript">
app.initialize();
</script>
</head>
<body>
<p class="text">Adobe Acrobat Test Page
Acrobat Reader is properly installed.
Click here to go back to information about using PDF.
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</p>
</body>
</html>
CSS:
.text{
white-space:pre-wrap;
word-wrap: break-word;
height:300px;
overflow: scroll;
-webkit-overflow-scrolling: touch;
padding:10px;
border:1px solid #000;
background-color:#fff;
}
我发现一个可能的解决方案是contenteditable="true"在p元素上使用,但这有一些缺点:
- 我不能允许在元素中创建更多标签
- 我不能让键盘显示出来
我发现的另一个解决方案是删除pre格式.但是,这会删除换行符,我希望保留换行符.
你的问题是iOS的原生选择引擎选择单独的单词或整个元素.并且因为当您尝试选择多行时,您有一个<p>元素保存整个文本本机选择引擎选择整个<p>元素.你应该做的是"提示"你想要能够选择多行的选择引擎.可以通过将每一行文本到一个单独实现该块级元素,例如<div>.
下面是一个示例脚本,它解析<p class="text">元素内的文本,并将每行文本放入一个单独的<div>元素中,通过使用非破坏空格字符实体在每行的开头保留新行,空行和空格.
var textElm = document.getElementsByClassName("text")[0],
text = textElm.textContent,
html = "";
html = text.replace(/([\t ]*)(.*)\n/g, function(match, spaces, text) {
if (spaces === "" && text === "") spaces = " "; // Make sure empty lines are rendered by adding single to <div>
return "<div>" + Array(spaces.length + 1).join(" ") + text + "</div>"
});
textElm.innerHTML = html;
然后您也可以white-space:pre-wrap;从CSS中删除,因为它不再需要.
解决方案是将整个内容放在p标签或任何内容中，然后将通常用 分隔的每个段落<br />与假换行符分隔开，如下所示：
<a class="space"></a>
它可以是任何通常的内联元素，然后我们将为其提供以下 CSS：
.space{
display:inline-block;
height:15px;
width:100%;
}
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