{"id":3026,"date":"2013-02-20T21:31:37","date_gmt":"2013-02-20T13:31:37","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=3026"},"modified":"2018-01-02T02:32:19","modified_gmt":"2018-01-01T18:32:19","slug":"study-span-a-element-keyboard-focusable-clickable","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2013\/02\/study-span-a-element-keyboard-focusable-clickable\/","title":{"rendered":"span\u4e0ea\u5143\u7d20\u7684\u952e\u76d8\u805a\u7126\u6027\u4ee5\u53ca\u952e\u76d8\u70b9\u51fb\u6027\u7814\u7a76"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a><br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=3026\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=3026<\/a><\/p>\n<h3>\u4e00\u3001\u4f17\u6240\u5468\u77e5\u7684\u4e0e\u4e0d\u4e3a\u6240\u77e5\u7684<\/h3>\n<p>\u6211\u4eec\u5e73\u65f6\u6d89\u53ca\u70b9\u51fb\u4ea4\u4e92\u4e8b\u4ef6\u7684\u65f6\u5019\uff0c\u90fd\u662f\u4f7f\u7528\u7684<code>a<\/code>\u5143\u7d20\u6216\u8005<code>button<\/code>\u5143\u7d20\uff0c\u539f\u56e0\u662f\u53ef\u4ee5\u76f8\u5e94\u952e\u76d8focus\u6548\u679c\u4ee5\u53ca\u56de\u8f66\u89e6\u53d1\u70b9\u51fb\u4e8b\u4ef6\uff0c\u8fd9\u662f\u4f17\u6240\u5468\u77e5\u7684\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u53ef\u80fd\u5b58\u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u9ed8\u8ba4\u6ca1\u6709\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\u7684\u5143\u7d20\uff0c\u4f8b\u5982<code>span<\/code>\u5143\u7d20\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u5b9a\u7684\u8bbe\u7f6e\u652f\u6301\u952e\u76d8\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u8fd9\u662f\u4e0d\u4e3a\u6240\u77e5\u7684\uff0c\u4e5f\u662f\u672c\u6587\u7684\u91cd\u70b9\u6240\u5728\u3002<\/p>\n<h3>\u4e8c\u3001span\u5143\u7d20\u5904\u7406\u4e0e\u6d4b\u8bd5<\/h3>\n<p>\u8981\u8ba9\u4e00\u4e2a\u666e\u901a\u7684<code>span<\/code>\u5143\u7d20\u8fbe\u5230\u4e00\u4e2a\u542b<code>button<\/code>\u5143\u7d20\u7684\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\uff0c\u6211\u4eec\u9700\u8981\u5982\u4e0b\u5904\u7406\uff1a<\/p>\n<ul>\n<li>\u9996\u5148\uff0c\u5f88\u663e\u7136\u7684\uff0c\u7ed1\u5b9a\u70b9\u51fb\u4e8b\u4ef6\uff1b<\/li>\n<li>\u7ed9\u5143\u7d20\u8bbe\u7f6e<code>tabindex=\"0\"<\/code>\u5c5e\u6027\uff0c\u4f7f\u5f97\u5143\u7d20\u5728tab\u952e\u951a\u70b9\u5207\u6362\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u83b7\u5f97\u7126\u70b9\uff1b<\/li>\n<li>\u4f7f\u7528<code>role<\/code>\u5c5e\u6027\u544a\u8bc9\u8f85\u52a9\u8bbe\u5907\uff08\u5982\u5c4f\u5e55\u9605\u8bfb\u5668\uff09\u8fd9\u4e2a\u5143\u7d20\u6240\u626e\u6f14\u7684\u89d2\u8272\uff0c\u5c5e\u4e8e<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=2277\">WAI-ARIA<\/a>. \u4f8b\u5982\u70b9\u51fb\u7684\u6309\u94ae\uff0c\u5c31\u662f<code>role=\"button\"<\/code>\uff1b\u4f1a\u8ba9\u8fd9\u4e2a\u5143\u7d20\u53ef\u70b9\u51fb\uff1b<\/li>\n<li>\u9644\u52a0\u952e\u76d8\u4e8b\u4ef6\uff0c\u5982<code>keydown<\/code>, \u7136\u540e\u5f53\u56de\u8f66\u6216\u7a7a\u683c\u952e\u7684\u65f6\u5019\uff0c\u89e6\u53d1click\u4e8b\u4ef6\uff1b<\/li>\n<li>\u5982\u679c\u4f60\u662f\u4f7f\u7528\u7684<code>a<\/code>\u5143\u7d20\u4f2a\u9020\u6309\u94ae\uff0c\u540c\u65f6\u542b\u6709\u94fe\u63a5\uff0c\u6bd4\u65b9\u8bf4<code>\"#\"<\/code>\u6216<code>\"##\"<\/code>\uff0c\u9700\u7981\u7528\u9ed8\u8ba4\u7684\u70b9\u51fb\u884c\u4e3a\uff0c\u901a\u8fc7<code>event.preventDefault()<\/code>\u6216<code>return false<\/code>.<\/li>\n<\/ul>\n<p><strong>\u6d4b\u8bd5<\/strong><br \/>\n\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/study\/201302\/element-focusable-clickable.html\" target=\"_blank\" class=\"a_link\">\u952e\u76d8\u805a\u7126\u6027\u6027\u4e0e\u53ef\u70b9\u51fb\u6027\u6d4b\u8bd5demo<\/a><\/p>\n<p>demo\u9875\u9762\u67094\u4e2a\u6309\u94ae\uff0c\u5982\u4e0b\u56fe\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201302\/2013-02-20_205619.png\" width=\"533\" height=\"193\" alt=\"demo\u9875\u9762\u76844\u4e2a\u6309\u94ae\" class=\"alignnone\" \/><\/p>\n<p>\u76f8\u5173HTML\u5982\u4e0b\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;span class=\"button\">\u6309\u94ae1&lt;\/span>\n&lt;span class=\"button\" tabindex=\"0\" role=\"button\">\u6309\u94ae2&lt;\/span>\n&lt;span class=\"button\" tabindex=\"0\" role=\"button\" data-key=\"true\">\u6309\u94ae3&lt;\/span>\n&lt;a href=\"javascript:\" class=\"button\">\u6309\u94ae4&lt;\/a><\/pre>\n<\/div>\n<p>\u8fd9\u56db\u4e2a\u6309\u94ae\u5168\u90e8\u7ed1\u5b9a\u4e86click\u4e8b\u4ef6\uff0c\u56e0\u6b64\uff0c\u70b9\u51fb\u4efb\u4f55\u6309\u94ae\uff0c\u90fd\u4f1a\u6709\u5f39\u51fa\uff0c\u4e0b\u9762\u9700\u8981\u6d4b\u8bd5\u7684\u5c31\u662f\u80fd\u5426\u901a\u8fc7\u952e\u76d8\u64cd\u4f5c\u5f39\u51fa\u63d0\u793a\u3002<\/p>\n<p><strong>\u6d4b\u8bd5\u7ed3\u679c\uff1a<\/strong><\/p>\n<ul>\n<li>\u9996\u5148\uff0c\u6309\u94ae1\u662f\u6700\u6700\u666e\u901a\u7684<code>span<\/code>\u5143\u7d20\uff0c\u6ca1\u6709\u8bbe\u7f6e<code>tabindex=\"0\"<\/code>\uff0c\u56e0\u6b64\uff0c\u5176\u662f\u65e0\u6cd5\u54cd\u5e94tab\u4e0b\u7684\u7126\u70b9\u5207\u6362\u7684\u3002\u800c\u6309\u94ae2-4\u90fd\u662f\u53ef\u4ee5\u7684\uff0c\u4f8b\u5982\u4e0b\u56fe\u6309\u94ae2\u83b7\u5f97\u7126\u70b9\u65f6\u5019\u7684\u72b6\u6001\uff0c\u622a\u81eaFireFox\u6d4f\u89c8\u5668\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201302\/2013-02-20_211112.png\" width=\"291\" height=\"95\" alt=\"\u6309\u94ae2\u83b7\u5f97\u7126\u70b9\u65f6\u5019\u7684\u72b6\u6001\" class=\"alignnone\" \/><\/li>\n<li>\u4f46\u662f\uff0c\u6309\u94ae2\u867d\u7136\u53ef\u4ee5\u54cd\u5e94focus\u72b6\u6001\uff0c\u4f46\u662f\uff0c\u5728\u6211\u4eec\u6309\u4e0b\u56de\u8f66\u952e\u7684\u65f6\u5019\uff0c\u5176\u6ca1\u6709\u4efb\u4f55\u5f39\u51fa\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u5f97\u51fa\u7ed3\u8bba\uff0c<code>tabindex=\"0\"<\/code>\u53ef\u4ee5\u8ba9\u5143\u7d20\u83b7\u5f97\u7126\u70b9\uff0c\u4f46\u662f\u56de\u8f66\u7b49\u952e\u76d8\u64cd\u4f5c\u4e0d\u80fd\u89e6\u53d1\u5176\u7ed1\u5b9a\u7684click\u4e8b\u4ef6\u3002<\/li>\n<li>\u6309\u94ae3\u7684\u4f5c\u7528\u5c31\u662f\u8868\u660e\uff0c\u8981\u60f3\u89e6\u53d1click\u4e8b\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u9644\u52a0\u989d\u5916\u7684\u952e\u76d8\u4e8b\u4ef6\uff0c\u4f8b\u5982<code>keyup<\/code>\/<code>keydown<\/code>, \u6309\u94ae3\u5728\u56de\u8f66\u7684\u65f6\u5019\u53ef\u4ee5\u89e6\u53d1click\u4e8b\u4ef6\uff0c\u56e0\u4e3aJS\u505a\u4e86\u7c7b\u4f3c\u4e0b\u9762\u7684\u5904\u7406\uff1a\n<div class=\"zxx_code\">\n<pre>if ($(this).attr(\"data-key\")) {\n    $(this).bind(\"<span style=\"color:#cd0000;\">keydown<\/span>\", function(e) {\n        var code = e.which;\n        <span style=\"color:green;\">\/\/ 13 = \u56de\u8f66, 32 = \u7a7a\u683c<\/span>\n        if (code === 13 || code === 32) {\n            <strong style=\"color:#333;\">$(this).trigger(\"click\");<\/strong>\n        }    \n    });\n}<\/pre>\n<\/div>\n<\/li>\n<li>\u6309\u94ae4\u662f\u6b63\u9762\u4f8b\u5b50\uff0c\u5c31\u662f\u6211\u4eec\u4e00\u822c\u4f7f\u7528\u7684<code>a<\/code>\u5143\u7d20\uff0c\u53ea\u8981<code>href<\/code>\u5b58\u5728\uff0c\u65e0\u9700\u5176\u4ed6\u7684\u8bbe\u7f6e\uff0c\u5c31\u80fd\u591f\u88ab\u952e\u76d8focus\uff0c\u5728focus\u72b6\u6001\u65f6\u5019\u56de\u8f66\u80fd\u591f\u89e6\u53d1\u7ed1\u5b9a\u7684\u70b9\u51fb\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n<h3>\u4e09\u3001\u4e00\u53e5\u8bdd\u5c0f\u7ed3<\/h3>\n<p>\u56e0\u6b64\uff0c\u4ee5\u540e\uff0c\u5f53\u4f60\u60f3\u8981\u4f7f\u7528<code>span<\/code>, <code>div<\/code>\u5143\u7d20\u6a21\u62df\u6309\u94ae\u554a\u3001\u9009\u9879\u5361\u6309\u94ae\u3001\u4e0b\u62c9\u6846\u63a7\u4ef6\u7b49\u7684\u65f6\u5019\uff0c\u60f3\u8981\u6709\u826f\u597d\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u5c31\u9700\u8981\u9075\u5faa\u4e0a\u9762\u76845\u6b65\u9aa4\uff1a\u7ed1\u5b9a\u70b9\u51fb\u4e8b\u4ef6\u2192<code>tabindex=\"0\"<\/code>\u2192<code>role=\"button\"<\/code>\uff08\u793a\u610f\uff0c\u5b8c\u6574<code>role<\/code>\u652f\u6301\u89d2\u8272\u53c2\u89c1\u6211\u4e4b\u524d\u7528\u5fc3\u6574\u7406\u7684\u201c<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=2277\">WAI-ARIA\u65e0\u969c\u788d\u7f51\u9875\u5e94\u7528\u5c5e\u6027\u5b8c\u5168\u5c55\u793a<\/a>\u201d\u4e00\u6587\uff09\u2192\u9644\u52a0\u7684\u952e\u76d8\u4e8b\u4ef6\u2192over~\u6216<code>return false<\/code>~<\/p>\n<p>\u884c\u6587\u4ed3\u4fc3\uff0c\u5982\u679c\u9519\u8bef\uff0c\u6b22\u8fce\u6307\u6b63\uff0c\u6b22\u8fce\u4ea4\u6d41\u3002<\/p>\n<p><strong>\u53c2\u8003\u6587\u7ae0\uff1a<\/strong><br \/>\n<a href=\"http:\/\/www.456bereastreet.com\/archive\/201302\/making_elements_keyboard_focusable_and_clickable\/\">Making elements keyboard focusable and clickable<\/a><\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u6765\u81ea<a href=\"http:\/\/www.zhangxinxu.com\/\">\u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<\/a>[<a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a>]<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=3026\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=3026<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u5e73\u65f6\u6d89\u53ca\u70b9\u51fb\u4ea4\u4e92\u4e8b\u4ef6\u7684\u65f6\u5019\uff0c\u90fd\u662f\u4f7f\u7528\u7684a\u5143\u7d20\u6216\u8005button\u5143\u7d20\uff0c\u539f\u56e0\u662f\u53ef\u4ee5\u76f8\u5e94\u952e\u76d8focus\u6548\u679c\u4ee5\u53ca\u56de\u8f66\u89e6\u53d1\u70b9\u51fb\u4e8b\u4ef6\uff0c\u8fd9\u662f\u4f17\u6240\u5468\u77e5\u7684\u3002<br \/>\n\u4f46\u662f\uff0c\u53ef\u80fd\u5b58\u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u9ed8\u8ba4\u6ca1\u6709\u952e\u76d8\u53ef\u8bbf\u95ee\u6027\u7684\u5143\u7d20\uff0c\u4f8b\u5982span\u5143\u7d20\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u5b9a\u7684\u8bbe\u7f6e\u652f\u6301\u952e\u76d8\u7684\u53ef\u8bbf\u95ee\u6027\uff0c\u8fd9\u662f\u4e0d\u4e3a\u6240\u77e5\u7684\uff0c\u4e5f\u662f\u672c\u6587\u7684\u91cd\u70b9\u6240\u5728\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1097],"tags":[699,295,784,615,188,444,492],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/3026"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=3026"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/3026\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=3026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=3026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=3026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}