r - R Bookdown: Tabbed headings

Question

How use tabbed heading in bookdown like as RMarkdown?

in RMarkdown:

# heading1 {.tabset}

## tab1
content1

## tab2
content2

---

Same code in bookdown:

Answer 1

https://github.com/rstudio/bookdown/issues/393

yihui：bookdown 不支持这个功能（因为它不是一个可移植的功能，例如不能用于 LaTeX/PDF 输出）。对不起。

Answer 2

gitbook这可以在使用模型时使用 HTML+CSS+JS 来实现。如果您仍想处理 pdf 输出，则需要按照此处LaTeX的说明创建环境。

您可以从w3schools解决方案开始，并根据具体bookdown情况对其进行调整。

HTML 实现

纯 HTML 实现将是：

function openCity(evt, cityName) {
  var i, tabcontent, tablinks;
  tabcontent = document.getElementsByClassName("tabcontent");
  for (i = 0; i < tabcontent.length; i++) {
    tabcontent[i].style.display = "none";
  }
  tablinks = document.getElementsByClassName("tablinks");
  for (i = 0; i < tablinks.length; i++) {
    tablinks[i].className = tablinks[i].className.replace(" active", "");
  }
  document.getElementById(cityName).style.display = "block";
  evt.currentTarget.className += " active";
}

body {font-family: Arial;}

/* Style the tab */
.tab {
  overflow: hidden;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
}

/* Style the buttons inside the tab */
.tab button {
  background-color: inherit;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 17px;
}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: #ddd;
}

/* Create an active/current tablink class */
.tab button.active {
  background-color: #ccc;
}

/* Style the tab content */
.tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
}

<h2>Tabs</h2>
<p>Click on the buttons inside the tabbed menu:</p>

<div class="tab">
  <button class="tablinks" onclick="openCity(event, 'London')">London</button>
  <button class="tablinks" onclick="openCity(event, 'Paris')">Paris</button>
  <button class="tablinks" onclick="openCity(event, 'Tokyo')">Tokyo</button>
</div>

<div id="London" class="tabcontent">
  <h3>London</h3>
  <p>London is the capital city of England.</p>
</div>

<div id="Paris" class="tabcontent">
  <h3>Paris</h3>
  <p>Paris is the capital of France.</p> 
</div>

<div id="Tokyo" class="tabcontent">
  <h3>Tokyo</h3>
  <p>Tokyo is the capital of Japan.</p>
</div>

它如何适应 bookdown

这可以适应于bookdown

1. 在 CSS 文件中

让我们说style.css，把这行：

/* Style the tab */
.tab {
  overflow: hidden;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
}

/* Style the buttons inside the tab */
.tab button {
  background-color: inherit;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 17px;
}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: #ddd;
}

/* Create an active/current tablink class */
.tab button.active {
  background-color: #ccc;
}

/* Style the tab content */
.tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
}

2.在一个header.html文件中

在 HTML 文件中，假设header.html：

<script>
function unrolltab(evt, tabName) {
  var i, tabcontent, tablinks;
  tabcontent = document.getElementsByClassName("tabcontent");
  for (i = 0; i < tabcontent.length; i++) {
    tabcontent[i].style.display = "none";
  }
  tablinks = document.getElementsByClassName("tablinks");
  for (i = 0; i < tablinks.length; i++) {
    tablinks[i].className = tablinks[i].className.replace(" active", "");
  }
  document.getElementById(tabName).style.display = "block";
  evt.currentTarget.className += " active";
}
</script>

3. 在以下文件中声明这些文件_output.yml：

您必须在此文件中声明 CSS 和 JS 片段：

bookdown::gitbook:
  css: ./css/style.css
  includes:
    in_header: ./header.html

4.在你的bookdown中使用它

你可以直接写

<div id="London" class="tabcontent">
  <h3>London</h3>
  <p>London is the capital city of England.</p>
</div>

<div id="Paris" class="tabcontent">
  <h3>Paris</h3>
  <p>Paris is the capital of France.</p> 
</div>

<div id="Tokyo" class="tabcontent">
  <h3>Tokyo</h3>
  <p>Tokyo is the capital of Japan.</p>
</div>

但是，使用时有一个更合适的解决方案R Markdown（如果您定义了适当的LaTeX样式，这可能会有所帮助。它基于自定义块。

::: {.tab}
<button class="tablinks" onclick="unrolltab(event, 'London')">London</button>
<button class="tablinks" onclick="unrolltab(event, 'Paris')">Paris</button>
<button class="tablinks" onclick="unrolltab(event, 'Tokyo')">Tokyo</button>
::: {#London .tabcontent}
#### London {-}
London is the capital city of England
:::
::: {#Paris .tabcontent}
#### Paris  {-}
Paris is the capital city of France
:::
::: {#Tokyo .tabcontent}
#### Tokyo  {-}
Tokyo is the capital city of Japan
:::
:::

例如，将文本放在:::{#London .tabcontent}和之间:::会将内容包装在一个<div id="London" class="tabcontent">块中