JQuery Mobile强制VoiceOver在GotoPage之后关注标题

Question

使用
更改页面后，JQuery mobile和VoiceOver处于活动状态

$.mobile.changePage("page1.html");

VoiceOver不关注标题。我想强制VoiceOver的焦点读取新页面的标题

NOT工作测试：

$(".ui-page-active .ui-title").click().focus().tap();
$(".ui-page-active .ui-title").trigger("create");
$(".ui-page-active .ui-title").attr("role","alert");
$(".ui-page-active .ui-title").attr("role","dialog");

测试页，不总是工作https://jsfiddle.net/218xLbwd/14/

解决方案：使用beforeshow事件来关注标题也感谢Eric D.Johnson的努力

  //for Jquery till  1.4.0
  $(document).on('pagebeforeshow', function() {
    $(".ui-page-active > .ui-header h1").attr('tabindex', "-1");
    $(".ui-page-active > .ui-header h1").focus();
  });
  //for Jquery 1.6.0+
  $(document).on('pagecontainerbeforeshow', function() {
    $(".ui-page-active > .ui-header h1").attr('tabindex', "-1");
    $(".ui-page-active > .ui-header h1").focus();
  });

Answer 1

更新：使用jQuery Mobile

堆栈溢出代码段未运行，请参阅https://jsfiddle.net/EricOP/wo40z1m9/3/

HTML

  <div data-role="header">
    <h1>Foo</h1>
  </div>
  <div data-role="content">
    <p>I'm first in the source order so I'm shown as the first page.</p>
    <p>View internal page called <a id="barclick" href="#bar">bar</a></p>
  </div>
  <div data-role="footer">
    <h4>Page Footer</h4>
  </div>
</div>
<!-- Start of second page -->
<div data-role="page" id="bar">
  <div data-role="header">
    <h1>Bar</h1>
  </div>
  <div data-role="content">
    <p>I'm the second in the source order so I'm hidden when the page loads. I'm just shown if a link that references my id is beeing clicked.</p>
    <p><a href="#foo">Back to foo</a></p>
  </div>
  <div data-role="footer">
    <h4>Page Footer</h4>
  </div>
</div>

CSS

/* CSS to prevent weird blue border in Chrome after setting focus */ 
h2:focus { outline: 0; }

JS-

(function() {
  // For changing to a specific page. 
  // Also see https://api.jquerymobile.com/pagecontainer/#event-beforeshow which was helpful for Sano.
  $("#bar").on('pageshow', function(barPage) {
    console.warn('Pageshow on bar, Sano.', barPage);
    $("h1:visible").attr('tabindex', "-1");
    $("h1:visible").css('background-color', '#aaa');
    $("h1:visible").focus();
  });
  // For changing between all jQuery Mobile pages. https://api.jquerymobile.com/pagecontainer/#event-change
  $(document).on('pagecontainerchange', function() {
    console.warn('New cool event, that always triggers, Pagecontainerchange on document, Sano.');
    $("h1:visible").attr('tabindex', "-1");
    $("h1:visible").css('color', '#dd4814');
    $("h1:visible").focus();
  });
})();

从事件触发(https://api.jquerymobile.com/pagecontainer/#event-change）、promise或回调比使用定时等待要好，这样就可以避免不必猜测渲染显示更改需要多长时间。

Sano特别提到https://api.jquerymobile.com/pagecontainer/#event-beforeshow很有帮助。

  //for jQuery until  1.4.0
  $(document).on('pagebeforeshow', function() {
    $(".ui-page-active > .ui-header h1").attr('tabindex', "-1");
    $(".ui-page-active > .ui-header h1").focus();
  });
  //for jQuery 1.6.0+ (Also works for 1.4)
  $(document).on('pagecontainerbeforeshow', function() {
    $(".ui-page-active > .ui-header h1").attr('tabindex', "-1");
    $(".ui-page-active > .ui-header h1").focus();
  });