<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:if="http://projectmallard.org/if/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="ui" version="1.0 if/1.0" id="shell-introduction" xml:lang="zh-CN">

  <info>
    <link type="guide" xref="shell-overview" group="#first"/>
    <link type="guide" xref="index" group="intro"/>

    <revision pkgversion="3.6.0" date="2012-10-13" status="review"/>
    <revision pkgversion="3.10" date="2013-11-02" status="review"/>
    <revision pkgversion="3.13.92" date="2014-09-22" status="candidate"/>
    <revision pkgversion="3.29" date="2018-08-28" status="review"/>
    <revision pkgversion="3.33.3" date="2019-07-19" status="review"/>
    <revision pkgversion="3.35.91" date="2020-07-19" status="review"/>

    <credit type="author">
      <name>Shaun McCance</name>
      <email>shaunm@gnome.org</email>
    </credit>
    <credit type="editor">
      <name>Michael Hill</name>
      <email>mdhillca@gmail.com</email>
    </credit>
    <credit type="editor">
      <name>Ekaterina Gerasimova</name>
      <email>kittykat3756@gmail.com</email>
    </credit>
    <credit type="editor">
      <name>Andre Klapper</name>
      <email>ak-47@gmx.net</email>
    </credit>

    <include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>

    <desc>A visual overview of your desktop, the top bar, and the
    <gui>Activities</gui> overview.</desc>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>TeliuTe</mal:name>
      <mal:email>teliute@163.com</mal:email>
      <mal:years>2011, 2012</mal:years>
    </mal:credit>
  </info>

  <title>Visual overview of GNOME</title>

  <p>GNOME 3 完全重绘了用户界面，它的首首次设计保持您的思路，减少注意力的分散，帮助您完成任务。当您首次登录时，只看到一个空旷的桌面和顶部面板条。</p>

<if:choose>
  <if:when test="!platform:gnome-classic">
    <media type="image" src="figures/shell-top-bar.png" width="600" if:test="!target:mobile">
      <p>GNOME Shell top bar</p>
    </media>
  </if:when>
  <if:when test="platform:gnome-classic">
    <media type="image" src="figures/shell-top-bar-classic.png" width="500" if:test="!target:mobile">
      <p>GNOME Shell top bar</p>
    </media>
  </if:when>
</if:choose>

  <p>The top bar provides access to your windows and applications, your
  calendar and appointments, and
  <link xref="status-icons">system properties</link> like sound, networking,
  and power. In the system menu in the top bar, you can change the volume or
  screen brightness, edit your <gui>Wi-Fi</gui> connection details, check your
  battery status, log out or switch users, and turn off your computer.</p>

<links type="section"/>

<!-- TODO: Replace "Activities overview" title for classic mode with something
like "Application windows" by using if:when and if:else ? -->
<section id="activities">
  <title><gui>Activities</gui> overview</title>

<media type="image" src="figures/shell-activities-dash.png" height="530" style="floatstart floatleft" if:test="!target:mobile, !platform:gnome-classic">
  <p>Activities button and Dash</p>
</media>

  <p if:test="!platform:gnome-classic">To access your windows and applications,
  click the <gui>Activities</gui> button, or just move your mouse pointer to
  the top-left hot corner. You can also press the
  <key xref="keyboard-key-super">Super</key> key on your keyboard. You can
  see your windows and applications in the overview. You can also just start
  typing to search your applications, files, folders, and the web.</p>

  <p if:test="platform:gnome-classic">To access your windows and applications,
  click the button at the bottom left of the screen in the window list. You can
  also press the <key xref="keyboard-key-super">Super</key> key to see an
  overview with live thumbnails of all the windows on the current workspace.</p>

  <p if:test="!platform:gnome-classic">On the left of the overview, you will find the <em>dash</em>. The dash
  shows you your favorite and running applications. Click any icon in the
  dash to open that application; if the application is already running, it will
  have a small dot below its icon. Clicking its icon will bring up the most
  recently used window. You can also drag the icon to the overview, or onto any
  workspace on the right.</p>

  <p if:test="!platform:gnome-classic">在图标上右击会显示一个菜单，允许您选择任一运行程序的窗口，或者打开一个新的窗口。您还可以按住 <key>Ctrl</key> 点击图标打开一个新窗口。</p>

  <p if:test="!platform:gnome-classic">When you enter the overview, you will initially be in the windows
  overview. This shows you live thumbnails of all the windows on the current
  workspace.</p>

  <p if:test="!platform:gnome-classic">Click the grid button at the bottom of the dash to display the
  applications overview. This shows you all the applications installed on your
  computer. Click any application to run it, or drag an application to the
  overview or onto a workspace thumbnail. You can also drag an application onto
  the dash to make it a favorite. Your favorite applications stay in the dash
  even when they’re not running, so you can access them quickly.</p>

  <list style="compact">
    <item>
      <p><link xref="shell-apps-open">Learn more about starting
      applications.</link></p>
    </item>
    <item>
      <p><link xref="shell-windows">Learn more about windows and
      workspaces.</link></p>
    </item>
  </list>

</section>

<section id="appmenu">
  <title>Application menu</title>
  <if:choose>
    <if:when test="!platform:gnome-classic">
      <media type="image" src="figures/shell-appmenu-shell.png" width="250" style="floatend floatright" if:test="!target:mobile">
        <p>App Menu of <app>Terminal</app></p>
      </media>
      <p>Application menu, located beside the <gui>Activities</gui> button,
      shows the name of the active application alongside with its icon and
      provides quick access to windows and details of the application, as well
      as a quit item.</p>
    </if:when>
    <!-- TODO: check how the app menu removal affects classic mode -->
    <if:when test="platform:gnome-classic">
      <media type="image" src="figures/shell-appmenu-classic.png" width="250" style="floatend floatright" if:test="!target:mobile">
        <p>App Menu of <app>Terminal</app></p>
      </media>
      <p>Application menu, located next to the <gui>Applications</gui> and
      <gui>Places</gui> menus, shows the name of the active application
      alongside with its icon and provides quick access to application
      preferences or help. The items that are available in the application menu
      vary depending on the application.</p>
    </if:when>
  </if:choose>

</section>

<section id="clock">
  <title>时钟、日历 &amp; 日程安排</title>

<if:choose>
  <if:when test="!platform:gnome-classic">
    <media type="image" src="figures/shell-appts.png" width="250" style="floatend floatright" if:test="!target:mobile">
      <p>Clock, calendar, appointments and notifications</p>
    </media>
  </if:when>
  <if:when test="platform:gnome-classic">
    <media type="image" src="figures/shell-appts-classic.png" width="250" style="floatend floatright" if:test="!target:mobile">
      <p>时钟、日历和日程安排</p>
    </media>
  </if:when>
</if:choose>

  <p>Click the clock on the top bar to see the current date, a month-by-month
  calendar, a list of your upcoming appointments and new notifications. You can
  also open the calendar by pressing
  <keyseq><key>Super</key><key>M</key></keyseq>. You can access the date and
  time settings and open your full calendar application directly from
  the menu.</p>

  <list style="compact">
    <item>
      <p><link xref="clock-calendar">了解更多关于日历和日程安排。</link></p>
    </item>
    <item>
      <p><link xref="shell-notifications">Learn more about notifications and
      the notification list.</link></p>
    </item>
  </list>

</section>


<section id="systemmenu">
  <title>System menu</title>

<if:choose>
  <if:when test="!platform:gnome-classic">
    <media type="image" src="figures/shell-exit.png" width="250" style="floatend floatright" if:test="!target:mobile">
      <p>用户菜单</p>
    </media>
  </if:when>
  <if:when test="platform:gnome-classic">
    <media type="image" src="figures/shell-exit-classic.png" width="250" style="floatend floatright" if:test="!target:mobile">
      <p>用户菜单</p>
    </media>
  </if:when>
</if:choose>

  <p>Click the system menu in the top-right corner to manage your system
  settings and your computer.</p>

<!-- TODO: Update for 3.36 UI option "Do Not Disturb" in calendar dropdown:

<p>If you set yourself to Unavailable, you won’t be bothered by message popups
at the bottom of your screen. Messages will still be available in the message
tray when you move your mouse to the bottom-right corner. But only urgent
messages will be presented, such as when your battery is critically low.</p>
-->

  <p>When you leave your computer, you can lock your screen to prevent other
  people from using it. You can also quickly switch users without logging out
  completely to give somebody else access to the computer, or you can
  suspend or power off the computer from the menu. If you have a screen 
  that supports vertical or horizontal rotation, you can quickly rotate the 
  screen from the system menu. If your screen does not support rotation, 
  you will not see the button.</p>

  <list style="compact">
    <item>
      <p><link xref="shell-exit">了解更多关于切换用户、退出、关闭计算机。</link></p>
    </item>
  </list>

</section>

<section id="lockscreen">
  <title>锁定屏幕</title>

  <p>When you lock your screen, or it locks automatically, the lock screen is
  displayed. In addition to protecting your desktop while you’re away from your
  computer, the lock screen displays the date and time. It also shows
  information about your battery and network status.</p>

  <list style="compact">
    <item>
      <p><link xref="shell-lockscreen">了解更多锁定屏幕相关内容。</link></p>
    </item>
  </list>

</section>

<section id="window-list">
  <title>Window List</title>

<if:choose>
  <if:when test="!platform:gnome-classic">
    <p>GNOME features a different approach to switching windows than a
    permanently visible window list found in other desktop environments. This
    lets you focus on the task at hand without distractions.</p>
    <list style="compact">
      <item>
        <p><link xref="shell-windows-switching">Learn more about switching
        windows.</link></p>
      </item>
    </list>
  </if:when>
  <if:when test="platform:gnome-classic">
    <media type="image" src="figures/shell-window-list-classic.png" width="800" if:test="!target:mobile">
      <p>Window List</p>
    </media>
    <p>The window list at the bottom of the screen provides access to all your
    open windows and applications and lets you quickly minimize and restore
    them.</p>
    <p>At the right-hand side of the window list, GNOME displays the four
    workspaces. To switch to a different workspace, select the workspace you
    want to use.</p>
  </if:when>
</if:choose>

</section>

</page>