YUI 对 RTL 语言的支持

发布于 2024-07-16 07:22:34 字数 105 浏览 15 评论 0原文

YUI 支持 rtl 语言吗？（rtl：从右到左，例如希伯来语或阿拉伯语）。

如果是这样，怎么办？我想显示一个菜单栏，其中不同的菜单项从右边距附近开始并向左移动。

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二货你真萌 2024-07-23 07:22:34

YUI 2.x 中不支持 RTL 语言。我一年多前提交了一个关于它的错误，并得到回复说他们可能会在以后的版本中添加它。（抱歉，自从他们切换到新的跟踪器后，我再也找不到这个错误了。）希望他们添加了对 YUI 3.x 的 RTL 支持，但我还没有查看预览版本（我也找不到他们提到添加RTL 支持）。

这并不是说 YUI 菜单不能实现 RTL，尽管由于没有内置支持，这需要一些工作。我并不声称这在所有浏览器中 100% 有效，尤其是 IE。

首先，您需要菜单项向相反方向流动，并从页面的另一侧开始。我相信这适用于大多数浏览器（当然，IE6 除外，呃 - 对于该浏览器，您需要做一些额外的工作，我不记得答案了）：

.yuimenubaritem { float: right; }

其次，您需要 MenuBar 的子菜单来流动相反的方向。您可以通过更改菜单配置的 submenualignment 属性来做到这一点：

// For the main submenu
new YAHOO.widget.MenuBar("id", { submenualignment: ["tr","br"] });

// You have to manually add all the Menus,
// so that you can set the submenualignment on each.
new YAHOO.widget.Menu("id", { submenualignment: ["tl","tr"] });

最糟糕的部分是尝试让键盘事件正常工作，因为此时按向右会使光标向左移动，反之亦然 -反之亦然。为此，您必须劫持 MenuBar 的 _onKeyDown() 并更改它，这样，如果 MenuBar 设置为 RTL（将此信息存储在某个 var 中），它对左/右的处理会略有不同。（抱歉，您必须自己解决这个问题，但这应该是一个简单的按键切换案例的问题）。

There is no support for RTL languages in YUI 2.x. I filed a bug about it over a year ago and got a response saying they might add it in a later release. (I can no longer find the bug since they switched to their new tracker, sorry.) Hopefully they're adding RTL support for YUI 3.x, but I haven't checked out the preview releases (nor can I find them mentioning adding RTL support).

That's not to say YUI menus cannot do RTL, though it takes a bit of work as there's no built-in support. I make no claims that this works 100% in all browsers, especially not IE.

First, you need the menu items to flow the opposite direction, and start on the opposite side of the page. I believe this works in most browsers (except IE6, of course, argh - for that browser, you need to do some extra work which I don't remember the answer to):

.yuimenubaritem { float: right; }

Second, you need the submenus of the MenuBar to flow the opposite direction. You can do this by changing the submenualignment attribute of your Menus' configurations:

// For the main submenu
new YAHOO.widget.MenuBar("id", { submenualignment: ["tr","br"] });

// You have to manually add all the Menus,
// so that you can set the submenualignment on each.
new YAHOO.widget.Menu("id", { submenualignment: ["tl","tr"] });

The worst part is trying to get the keyboard events to work correctly, as at this point pressing right makes the cursor go left and vice-versa. To do that, you'll have to hijack MenuBar's _onKeyDown() and change it so that, if the MenuBar is set RTL (store this info in a var somewhere), it processes left/right a bit differently. (Sorry, you'll have to figure this one out on your own, but it should be a simple matter of switching cases on key presses).

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