HTML可以用不可编辑的岛屿来满足 [英] HTML contenteditable with non-editable islands
问题描述
我有一些基于浏览器的WYSIWYG编辑器,用户可以编辑文档模板。
文档模板是一个普通的html,带有一些特殊的合并代码占位符。这样的模板通过用来自数据库的数据替换这些占位符来实例化。这给了最终的文件 - 模板的一个实例。
我目前的方法如下所示:
< div contenteditable>
带< input type = button class =mergecodevalue =MergeCode1>的示例模板。
< / div>
(在线范例: http://jsfiddle.net/tFBKN/ )
输入在这种情况下是不可编辑的,并且表现得像一个坚实的块一样 - 我需要。
用户可以通过点击DEL或BACKSPACE作为任何其他字符等来删除这样的合并代码。通过对这样的input.mergecode拥有适当的CSS,我能够实现我想要的外观。
但是有了这种方法,我在三个不同的UA中遇到了三个不同的问题:
{font:inherit}
根本不起作用,所以如果输入在< b>
像这里< b>< input value =test>< / b>
它不会继承任何字体样式。 b < input>
元素的片段副本从剪贴板内容中删除该输入,以便进一步的粘贴操作可插入所有内容,但不会输入内容。 b $ b < input>
产生奇怪的结果( bug )
所以我正在寻找其他想法代表HTML中不可编辑的内嵌块岛屿。
其他我迄今尝试过的方法:
-
< span contenteditable =false> MergeCode1< / span >
- 它不起作用,因为大多数UA会从选择中删除此类节点。因此,不可能在选择之上应用< b>
或< i>
包含这样的跨度。
任何其他想法?
另一个看起来很有前途的想法是:
使用空跨度和 :: before {content:caption; }
应该在DOM中产生一个不可编辑的块作为没有插入符的位置。
你可以在这里试一下 http://jsfiddle.net/TwVzt/1/
<但是这种方法并不是没有问题的(在我的例子中):没有办法使用 style 声明
:: before
内联DOM属性所以整套应该在CSS中预先声明。 但是我拥有的合并代码集非常大,在一些使用情况下甚至是未知的。叹气。
然而,如果有人会有更好的情况(已知的代码集),那么就把这个配方放在这里。
I have sort of browser based WYSIWYG editor where users can edit documents-templates.
Document-template is an ordinary html with some special "merge code placeholders". Such template gets "instantiated" by replacing these placeholders by data coming from DB. This gives final document - an instance of the template.
My current approach looks like this:
<div contenteditable>
Sample template with <input type=button class="mergecode" value="MergeCode1">.
</div>
(Online sample to play with: http://jsfiddle.net/tFBKN/ )
The input is not editable in such case and behaves as a solid block - exactly what I need. Users can delete such merge codes by clicking DEL or BACKSPACE as any other characters, etc. By having proper CSS for such input.mergecode I am able to achieve look-n-feel I want.
But with such approach I have three different problems in three different UAs:
- IE - CSS
{ font:inherit }
simply does not work there, so if the input is inside<b>
like here<b><input value="test"></b>
it does not inherit any font styles. - FF - Copy of fragment that contains
<input>
element removes that input from clipboard content so further paste operation inserts everything but not inputs. - GC - Click on {BACKSPACE} immediately after the
<input>
produces weird results (bug)
So I am looking for other ideas of how to represent non-editable inline-block alike "islands" in HTML.
Other approach that I've tried so far:
<span contenteditable="false">MergeCode1</span>
- it does not work as most of UAs remove such node from selection. So it is not possible to, say, apply<b>
or<i>
on top of selection that contains such span.
Any other ideas?
One more idea that looks promising:
To use empty span with ::before { content:"caption"; }
that should produce non editable block represented in in DOM as a node having no caret positions inside.
You can try it here http://jsfiddle.net/TwVzt/1/
But this approach is not free of problems (in my case): There is no way to declare ::before
inline using style DOM attribute and so the whole set should be declared in CSS upfront.
But set of merge codes I have is pretty large, even unknown upfront in full in some use cases. Sigh.
Nevertheless putting this recipe here if someone will have better circumstances (known set of codes).
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