Panel / Side Panels

Panel Layout

Let's look how to add Side Panels to our App. We may include up to 2 panels to our App, one on left side and another one on right side. We should add panels' HTML right in the beginning of the app root element (or <body> in case there is no root element in use):

<body>
  <!-- App root element -->
  <div id="app">
    <!-- Left panel -->
    <div class="panel panel-left">
        ... panel content goes here ...
    </div>

    <!-- Right panel -->
    <div class="panel panel-right">
        ... panel content goes here ...
    </div>

    ...
  </div>
</body>

Panel Effect

After we added panels we need to choose opening effect for each panel. There could be one of two effects: "Reveal" (when panel moves out whole app's content) or "Cover" (when panel overlays app's content). If you want to use "Reveal" effect you should add additional panel-reveal class to Panel, or panel-cover for cover effect:

<body>
  <!-- App root element -->
  <div id="app">
    <!-- Left panel, let it be with reveal effect -->
    <div class="panel panel-left panel-reveal">
        ... panel content goes here ...
    </div>

    <!-- Right panel, with cover effect -->
    <div class="panel panel-right panel-cover">
        ... panel content goes here ...
    </div>

    ...
  </div>
</body>

Panel App Parameters

It is possible to control some default panels behavior using global app parameters by passing panels related parameters under panel parameter:

ParameterTypeDefaultDescription
leftBreakpointnumberMinimal app width (in px) when left panel becomes always visible
rightBreakpointnumberMinimal app width (in px) when right panel becomes always visible
swipestringDisabled by default. If you want to enable ability to open/close side panels with swipe you can pass here left (for left panel) or right (for right panel) or both (for both panels).
swipeActiveAreanumber0Width (in px) of invisible edge from the screen that triggers swipe panel
swipeCloseOppositebooleantrueThis parameter gives ability to close opposite panel by swipe. For example, if your swipePanel is "left", then you could close "right" panel also with swipe.
swipeOnlyClosebooleanfalseThis parameter allows to close (but not open) panels with swipes
swipeNoFollowbooleanfalseFallback option for potentially better performance on old/slow devices. If you enable it, then side panel will not follow your finger during touch, it will be automatically opened/closed on swipe left/right.
swipeThresholdnumber0Panel will not move with swipe if "touch distance" will be less than this value (in px).
closeByBackdropClickbooleantrueEnable/disable ability to close panel by clicking outside of panel (on panel's backdrop)

For example:

var app = new Framework7({
  panel: {
    swipe: 'left',
    leftBreakpoint: 768,
    rightBreakpoint: 1440,
  }
});

Panel App Methods

Let's look at related App methods to work with Panel:

app.panel.open(side, animate)- open panel

  • side - string. Panel to open: "left" or "right". Required in case you have two panels.
  • animate - boolean. Should it be opened with animation or not. Optional, by default is true

app.panel.close(side, animate)- close panel

  • side - string. Panel to close. Optional, by default will close any opened panel.
  • animate - boolean. Should it be closed with animation or not. Optional, by default is true

app.panel.create(parameters)- create new panel instance

  • parameters - object. Object with panel parameters.

Method returns created Panel instance

Use this method only in case you have added panel to DOM after app initialization. Otherwise it will be created automatically

app.panel.get(side)- get Panel instance by specified side

  • side - string. Panel to get

Method returns Panel instance

app.panel.enableSwipe(side)- enable swipes for panel (swipe-to-close and swipe-to-open)

  • side - string. Panel to enable swipe actions on

app.panel.disableSwipe(side)- disable swipes for panel (swipe-to-close and swipe-to-open)

  • side - string. Panel to disable swipe actions on

app.panel.left- left panel instance

app.panel.right- right panel instance

Panel Parameters

If we create Panel manually using app.panel.create method we need to pass object with panel parameters:

ParameterTypeDefaultDescription
elHTMLElementPanel element
sidestringCan be left or right. If not passed then will be determined based on panel-left or panel-right element classes
effectstringCan be cover or reveal. If not passed then will be determined based on panel-cover or panel-reveal element classes

For example:

var panel = app.panel.create({
  el: '.panel-left',
})

Panel Methods & Properties

After we created Panel instance (by calling app.panel.create) or after we got Panel instance (by calling app.panel.get) we may use its useful methods and properties:

Properties
panel.appLink to global app instance
panel.sideString with panel side: left or right
panel.effectString with panel effect: cover or reveal
panel.openedBoolean property indicating whether it is opened or not
panel.elPanel HTML element
panel.$elDom7 instance with panel HTML element
panel.backdropElBackdrop HTML element
panel.$backdropElDom7 instance with backdrop HTML element
panel.paramsPopup parameters
Methods
panel.open(animate)Open panel. Where
  • animate - boolean (by default true) - defines whether it should be opened with animation or not
panel.close(animate)Close panel. Where
  • animate - boolean (by default true) - defines whether it should be closed with animation or not
panel.destroy()Destroy panel instance
panel.on(event, handler)Add event handler
panel.once(event, handler)Add event handler that will be removed after it was fired
panel.off(event, handler)Remove event handler
panel.off(event)Remove all handlers for specified event
panel.emit(event, ...args)Fire event on instance

It is possible to open and close required panel (if you have them in DOM) using special classes and data attributes on links:

  • To open panel we need to add panel-open class to any HTML element (prefered to link)

  • To close panel we need to add panel-close class to any HTML element (prefered to link)

  • If you have two panels in app, such link will open/close Left panel by default

  • If you want to specify which panel should opened/closed, then it could be done via additional data-panel="left attribute on this HTML element

According to above note:

<body>
  <div id="app">
    <!-- Left Panel with Reveal effect -->
    <div class="panel panel-left panel-reveal">
      <div class="content-block">
        ...
        <!-- Clicking on link with "panel-close" class will close panel -->
        <p><a href="#" class="panel-close">Close me</a></p>
        <!-- Click on link with "panel-open" and data-panel="right" attribute will open Right panel -->
        <p><a href="#" data-panel="right" class="panel-close">Open Right Panel</a></p>
      </div>
    </div>

    <!-- Right Panel with Cover effect -->
    <div class="panel panel-right panel-cover">
      <div class="content-block">
        ...
        <!-- Click on link with "panel-close" class will close panel -->
        <p><a href="#" class="panel-close">Close me</a></p>
        <!-- Click on link with "panel-open" and data-panel="left" attribute will open Left panel -->
        <p><a href="#" data-panel="left" class="panel-open">Open Left Panel</a></p>
      </div>
    </div>

    ...
    <div class="page-content">
      <div class="content-block">
        <!-- If no data-panel attribute, Left panel will be opened by default -->
        <p><a href="#" class="panel-open">Open Left Panel</a></p>
        <!-- Click on link with "panel-open" and data-panel="right" attribute will open Right panel -->
        <p><a href="#" data-panel="right" class="panel-open">Open Right Panel</a></p>
      </div>
    </div>
  </div>
  ...
</body>

Routable Panels

Routable Panels available from Framework7 version 3.2.0.

Panels can also be routable with same features as for routable modals and pages:

  • it provides opportunity to open Panel by usual links instead of so called special links or API,
  • with enabled Push State, the same Panel will be opened when you refresh browser, navigate back and forward in history,
  • with routable Panels you can load Panel itself and its content in the same ways as for pages and modals, i.e. using url, content, template, templateUrl, component or componentUrl
routes = [
  ...
  // Creates Panel from passed HTML string
  {
    path: '/left-panel/',
    panel: {
      content: `
        <div class="panel panel-left panel-cover">
          <div class="view">
            <div class="page">
              ...
            </div>
          </div>
        </div>
      `
    }
  },
  // Load Panel from file via Ajax
  {
    path: '/right-panel-ajax/',
    panel: {
      url: './right-panel.html',
      /* right-panel.html contains:
      <div class="panel panel-right panel-reveal">
        <div class="view">
          <div class="page">
            ...
          </div>
        </div>
      </div>
      */
    },
  },
  // Load Panel from component file
  {
    path: '/panel-component/',
    panel: {
      componentUrl: './panel-component.html',
      /* panel-component.html contains:
      <template>
        <div class="panel panel-left panel-cover">
          <div class="view">
            <div class="page">
              ...
            </div>
          </div>
        </div>
      </template>
      <style>...</style>
      <script>...</script>
      */
    },
  },
]

According to example above:

  • when you click on link with /left-panel/ href attribute it will open Panel from specified string content,
  • when you click on link with /right-panel-ajax/ href attribute it will perform Ajax request to right-panel.html file and open it as a Right Panel,
  • when you click on link with /panel-component/ href attribute it will perform Ajax request to panel-component.html file, parse it as a Router Component and open it as a Panel,

Note that routable Panels can't be mixed with static Panels. So if you have static left panel in the app, then only right panel can be loaded as routable panel.

Panel Events

Panel will fire the following DOM events on panel element and events on app and panel instance:

DOM Events

EventTargetDescription
panel:openPanel Element<div class="panel">Event will be triggered when Panel starts its opening animation
panel:openedPanel Element<div class="panel">Event will be triggered after Panel completes its opening animation
panel:closePanel Element<div class="panel">Event will be triggered when Panel starts its closing animation
panel:closedPanel Element<div class="panel">Event will be triggered after Panel completes its closing animation
panel:backdrop-clickPanel Overlay Element<div class="panel-backdrop">Event will be triggered when the panel overlay is clicked
panel:swipeopenPanel Element<div class="panel">Event will be triggered in the very beginning of opening it with swipe
panel:swipePanel Element<div class="panel">Event will be triggered for swipe panel during touch swipe action
panel:breakpointPanel Element<div class="panel">Event will be triggered when it becomes visible/hidden when app width matches its breakpoint
panel:beforedestroyPanel Element<div class="panel">Event will be triggered right before Panel instance will be destroyed

App and Panel Instance Events

Panel instance emits events on both self instance and app instance. App instance events has same names prefixed with panel.

EventTargetArgumentsDescription
openpanel(panel)Event will be triggered when Panel starts its opening animation. As an argument event handler receives panel instance
panelOpenapp(panel)
openedpanel(panel)Event will be triggered when Panel completes its opening animation. As an argument event handler receives panel instance
panelOpenedapp(panel)
closepanel(panel)Event will be triggered when Panel starts its closing animation. As an argument event handler receives panel instance
panelCloseapp(panel)
closedpanel(panel)Event will be triggered when Panel completes its closing animation. As an argument event handler receives panel instance
panelClosedapp(panel)
backdropClickpanel(panel)Event will be triggered when the panel backdrop is clicked. As an argument event handler receives panel instance
panelBackdropClickapp(panel)
swipeOpenpanel(panel)Event will be triggered in the very beginning of opening it with swipe. As an argument event handler receives panel instance
panelSwipeOpenapp(panel)
swipepanel(panel, progress)Event will be triggered for swipe panel during touch swipe action. As an argument event handler receives panel instance and opened progress (from 0 to 1)
panelSwipeapp(panel, progress)
breakpointpanel(panel)Event will be triggered when it becomes visible/hidden when app width matches its breakpoint. As an argument event handler receives panel instance
panelBreakpointapp(panel)
beforeDestroypanel(panel)Event will be triggered right before Panel instance will be destroyed
panelBeforeDestroyapp(panel)

CSS Variables

Below is the list of related CSS variables (CSS custom properties).

:root {
  --f7-panel-width: 260px;
  --f7-panel-bg-color: #fff;
}
.ios {
  --f7-panel-backdrop-bg-color: rgba(0, 0, 0, 0);
  --f7-panel-transition-duration: 400ms;
  --f7-panel-shadow: transparent;
}
.md {
  --f7-panel-backdrop-bg-color: rgba(0, 0, 0, 0.2);
  --f7-panel-transition-duration: 300ms;
  --f7-panel-shadow: rgba(0, 0, 0, 0.25) 0%,
    rgba(0, 0, 0, 0.1) 30%,
    rgba(0, 0, 0, 0.05) 40%,
    rgba(0, 0, 0, 0) 60%,
    rgba(0, 0, 0, 0) 100%;
}

Examples

<body>
  <div id="app">
    <div class="panel panel-left panel-reveal">
      <div class="block">
        <p>Left Panel content here</p>
        <p><a class="panel-close" href="#">Close me</a></p>
        <p><a class="panel-open" href="#" data-panel="right">Open Right Panel</a></p>
      </div>
    </div>
    <div class="panel panel-right panel-cover">
      <div class="block">
        <p>Right Panel content here</p>
        <p><a class="panel-close" href="#">Close me</a></p>
        <p><a class="panel-open" href="#" data-panel="left">Open Left Panel</a></p>
      </div>
    </div>
    <div class="view view-main view-init">
      <div class="page">
        <div class="navbar">
          <div class="navbar-inner">
            <div class="left"></div>
            <div class="title">Panels</div>
            <div class="right"></div>
          </div>
        </div>
        <div class="page-content">
          <div class="block">
            <p><a class="panel-open" href="#">Open Left Panel</a></p>
            <p><a class="panel-open" href="#" data-panel="right">Open Right Panel</a></p>
          </div>
        </div>
      </div>
    </div>
  </div>
</body>
var app = new Framework7();

var $$ = Dom7;

// Dom Events
$$('.panel-left').on('panel:open', function () {
  console.log('Panel left: open');
});
$$('.panel-left').on('panel:opened', function () {
  console.log('Panel left: opened');
});

// Instance Events
var panelRight = app.panel.right;
panelRight.on('open', function () {
  console.log('Panel right: open');
});
panelRight.on('opened', function () {
  console.log('Panel right: opened');
});

// App Events
app.on('panelClose', function (panel) {
  console.log('Panel ' + panel.side + ': close');
});
app.on('panelClosed', function (panel) {
  console.log('Panel ' + panel.side + ': closed');
});