about_sys.html - Android社区 - https://www.androidos.net.cn/

<!DOCTYPE HTML>
<html i18n-values="dir:textdirection;"><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title i18n-content="title"></title>

<style>
body {
  font-size: 84%;
  font-family: Arial, Helvetica, sans-serif;
  padding: 0.75em;
  margin: 0;
  min-width: 45em;
}

h1, h2 {
 font-size: 120%;
 letter-spacing: -1px;
 margin: 0;
}

h1 {
  font-weight: bold;
  color: #4a8ee6;
  padding: 0;
}

h2 {
  font-weight: normal;
  padding: 0.5em 1em;
  color: #3a75bd;
  -webkit-margin-start: -38px;
  -webkit-padding-start: 38px;
  border-top: 1px solid #3a75bd;
  padding-top: 0.5em;
}

h2:first-child {
  border-top: 0;
  padding-top: 0;
  float: left;
  vertical-align: text-bottom;
}

#header {
  padding: 0.6em 1em 0.75em 0;
  margin-bottom: 0.75em;
  position: relative;
  overflow: hidden;
  background: #5296de;
  background-size: 100%;
  border: 1px solid #3a75bd;
  border-radius: 6px;
  color: white;
  text-shadow: 0 0 2px black;
}

html[dir='rtl'] #header {
  padding: 0.6em 0 0.75em 1em;
}

#header h1 {
  -webkit-padding-start: 3em;
  margin: 0;
  display: inline;
  background: url('shared/images/gear.png') no-repeat;
  background-position: 12px 60%;
  color: white;
}

html[dir='rtl'] #header h1 {
  background-position-left: auto;
  backgroun-position-right: 12px;
}

#header p {
  font-size: 84%;
  font-style: italic;
  padding: 0;
  margin: 0;
  color: white;
  -webkit-padding-start: 0.4em;
  display: inline;
}

.list {
  line-height: 200%;
  border-collapse: collapse;
  font-size: 84%;
  table-layout: fixed;
  width: 100%;
}
.list:not(.filtered) tr:nth-child(odd) td {
  background: #eff3ff;
}

.list td {
  padding: 0 0.5em;
  vertical-align: top;
  line-height: 1.4em;
  padding-top: 0.35em;
  font-family: 'Courier New', monospace;
  white-space: pre;
}

.list tr td:nth-last-child(1),
.list tr th:nth-last-child(1) {
  -webkit-padding-end: 1em;
}

.list:not(.filtered) .tab .name {
  -webkit-padding-start: 1.5em;
}

.list .name {
  width: 20%;
}

.list .button_cell {
  width: 7%;
}

.list .name div {
  height: 1.6em;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.button_hidden {
  display: none;
}

.number_expanded, .number_collapsed  {
  text-align: left;
  width: 80%;
}

html[dir='rtl'] .number_expanded, html[dir='rtl'] .number_collapsed  {
  text-align: right;
}

tr:not(.firstRow) > *:nth-child(1),
tr:not(.firstRow) > *:nth-child(2),
tr.firstRow th:nth-child(1),
tr.firstRow th:nth-child(2) {
  -webkit-border-end: 1px solid #b5c6de;
}

.name {
  background-position: 5em center;
  background-repeat: no-repeat;
}

html[dir='rtl'] #details .name {
  background-position-left: auto;
  background-position-right: 5em;
}

.number_collapsed .stat_value {
  display: none;
}

.number_expanded .stat_value {
  display: auto;
}

#anchor {
  display: none;
}

.globalButton {
  float: left;
  margin: 1px 5px;
}

html[dir='rtl'] .globalButton {
  float: right;
}
</style>
<script src="shared/js/local_strings.js"></script>
<script>
var localStrings;

function getValueDivForButton(button) {
  return document.getElementById(button.id.substr(0, button.id.length - 4));
}

function getButtonForValueDiv(valueDiv) {
  return document.getElementById(valueDiv.id + '-btn');
}

function changeCollapsedStatus() {
  var valueDiv = getValueDivForButton(this);
  if (valueDiv.parentNode.className == 'number_collapsed') {
    valueDiv.parentNode.className = 'number_expanded';
    this.textContent = localStrings.getString('collapse_btn');
  } else {
    valueDiv.parentNode.className = 'number_collapsed';
    this.textContent = localStrings.getString('expand_btn');
  }
}

function collapseAll() {
  var valueDivs = document.getElementsByClassName('stat_value');
  for(var i = 0; i < valueDivs.length; i++) {
    var button = getButtonForValueDiv(valueDivs[i]);
    if (button && button.className != 'button_hidden') {
      button.textContent = localStrings.getString('expand_btn');
      valueDivs[i].parentNode.className = 'number_collapsed';
    }
  }
}

function expandAll() {
  var valueDivs = document.getElementsByClassName('stat_value');
  for(var i = 0; i < valueDivs.length; i++) {
    var button = getButtonForValueDiv(valueDivs[i]);
    if (button && button.className != 'button_hidden') {
      button.textContent = localStrings.getString('collapse_btn');
      valueDivs[i].parentNode.className = 'number_expanded';
    }
  }
}

document.addEventListener('DOMContentLoaded', function() {
  localStrings = new LocalStrings();    
    
  var collapseAllBtn = document.getElementById('collapseAll');
  collapseAllBtn.onclick = collapseAll;
  
  var expandAllBtn = document.getElementById('expandAll');
  expandAllBtn.onclick = expandAll;
  
  var anchorName = document.getElementById('anchor').textContent;
  var valueDivs = document.getElementsByClassName('stat_value');
  for(var i = 0; i < valueDivs.length; i++) {
    var button = getButtonForValueDiv(valueDivs[i]);
    button.onclick = changeCollapsedStatus;
    if (valueDivs[i].textContent.split('\n').length > 1) {
      button.textContent = localStrings.getString('expand_btn');
      valueDivs[i].parentNode.className = 'number_collapsed';
    } else {
      button.className = 'button_hidden';
    }
  }    
});
</script>

</head>
<body id="t">
  <div id="header">
    <h1 i18n-content="title"></h1>
    <p i18n-content="description"></p>
  </div>
  <div id="content">
    <h2 i18n-content="table_title"></h2>
    <div id="anchor" jscontent="anchor"></div>
    <button id="expandAll" class="globalButton" i18n-content="expand_all_btn">
    </button>
    <button id="collapseAll" class="globalButton" 
        i18n-content="collapse_all_btn"></button>
    <table class="list" id="details">
      <tr jsselect="details">
        <td class="name"><a jsvalues="name:anchor_value"><div
            jscontent="stat_name"></div></a></td>
        <td class="button_cell"><button jsvalues="id:stat_name + '-value-btn'"
            class="expand_status"></button></td>
        <td class="number"><div class="stat_value" jscontent="stat_value"
            jsvalues="id:stat_name + '-value'"></div></td>
      </tr>
    </table>
  </div>
</body>
</html>