ExecCommand函数的定义是否为粗体？ [英] Definition of ExecCommand function for bold?

问题描述

ExecCommand提供了一种在iFrame中加粗文本，使其变为斜体，加下划线等的方法。

ExecCommand offers a way to bold text inside iFrame, make it italic, underline it etc.

但它缺少创建<的选项;引用> 或< strong> 或< em> （有 formatBlock 但仅限于块元素而不是内联元素。）

But it's missing an option to create <cite> or <strong> or <em> (there is formatBlock but only for block elements and not inline ones).

我想使用ExecCommand函数来创建< cite> - 有没有办法实现这个目标？显然，我希望保持完美无瑕的解析，例如粗体，而不是像 surroundContents 那样在使用时会失败它在相同的选择上两次。

I'd like to use ExecCommand function for creating <cite> - is there any way to achieve this? And obviously I want to maintain flawless parsing like in case of bold and not something like surroundContents which will fail when you use it twice on the same selection.

我正在寻找ExecCommand粗体命令的定义或使用现有的commants完美地添加<的方法;举> 。有什么建议？我无法从浏览器的功能中提取它。当我尝试这样做时，它会说本机代码。

I'm looking for a definition of ExecCommand bold command or a way to use existing commants to flawlessly add <cite>. Any suggestions? I couldn't extract it from browser's functions. It says "native code" when I try to do that.

推荐答案

我看到之前评论中提到过CKEditor： ）这就是我们处理执行命令的方式：

I see that CKEditor was mentioned in one of previous comments :) So this is how we handle executing commands:

• 我们手动执行一切。正如您所看到的，DOM API是不够的，浏览器之间的实现也不同，所以我想（但我没有检查过），在一个浏览器中包含一些带有应用样式的文本的HTML在其他浏览器中不起作用（因为应用了一个浏览器） strong 和第二个 b 或 span 具有内联样式）。


• 首先，我们需要定制范围和选择实现。你不能使用它们，但有一个很酷的 Rangy lib。


• 您需要的下一个组件是一组应用，删除和检查样式的方法。这是我们的impl 。


• 最后一个组件是微不足道的 - 自定义命令，因为模仿W3C的API和想法很方便。

• We do everything manually. As you can see DOM API isn't sufficient and implementations differ between browsers, so I guess (but I haven't checked this) that HTML containing some text with applied styles in one browser won't work in other (because one browser applied strong and second b or span with inline style).
• First of all we need custom Range and Selection implementations. You can't use them, but there's a cool Rangy lib.
• Next component that you need is set of methods for applying, removing and checking styles. Here's our impl.
• And the last component is trivial - custom commands, because it's convenient to mimic W3C's APIs and ideas.

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