Drawers
The MDC Drawer component is a spec-aligned drawer component adhering to the
Material Design navigation drawer pattern.
It implements permanent, persistent, and temporary drawers. Permanent drawers are CSS-only and require no JavaScript, whereas persistent and temporary drawers require JavaScript to function, in order to respond to
user interaction.
Design & API Documentation
Installation
npm install --save @material/drawer
Permanent drawer usage
A permanent drawer is always open, sitting to the side of the content. It is appropriate for any display size larger
than mobile.
TODO(sgomes): Give advice on how to hide permanent drawer in mobile.
<nav class="mdc-permanent-drawer mdc-typography">
<div class="mdc-permanent-drawer__toolbar-spacer"></div>
<div class="mdc-permanent-drawer__content">
<nav id="icon-with-text-demo" class="mdc-list">
<a class="mdc-list-item mdc-permanent-drawer--selected" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">inbox</i>Inbox
</a>
<a class="mdc-list-item" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">star</i>Star
</a>
</nav>
</div>
</nav>
<div>
Toolbar and page content go inside here.
</div>
In the example above, we've set the drawer above the toolbar, and are using a toolbar spacer to ensure that it is
presented correctly, with the correct amount of space to match the toolbar height. Note that you can place content
inside the toolbar spacer.
Permanent drawers can also be set below the toolbar:
<div>Toolbar goes here</div>
<div class="content">
<nav class="mdc-permanent-drawer mdc-typography">
<nav id="icon-with-text-demo" class="mdc-list">
<a class="mdc-list-item mdc-permanent-drawer--selected" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">inbox</i>Inbox
</a>
<a class="mdc-list-item" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">star</i>Star
</a>
</nav>
</nav>
<main>
Page content goes here.
</main>
</div>
CSS classes:
Class | Description |
---|
mdc-permanent-drawer | Mandatory. Needs to be set on the root element of the component. |
mdc-permanent-drawer__content | Mandatory. Needs to be set on the container node for the drawer content. |
mdc-permanent-drawer__toolbar-spacer | Optional. Add to node to provide the matching amount of space for toolbar. |
Persistent drawer usage
Persistent drawers can be toggled open or closed. The drawer sits on the same surface elevation as the content. It is closed by default. When the drawer is outside of the page grid and opens, the drawer forces other content to change size and adapt to the smaller viewport. Persistent drawers stay open until closed by the user.
Persistent drawers are acceptable for all sizes larger than mobile.
<aside class="mdc-persistent-drawer mdc-typography">
<nav class="mdc-persistent-drawer__drawer">
<header class="mdc-persistent-drawer__header">
<div class="mdc-persistent-drawer__header-content">
Header here
</div>
</header>
<nav id="icon-with-text-demo" class="mdc-persistent-drawer__content mdc-list">
<a class="mdc-list-item mdc-persistent-drawer--selected" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">inbox</i>Inbox
</a>
<a class="mdc-list-item" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">star</i>Star
</a>
</nav>
</nav>
</aside>
let drawer = new mdc.drawer.MDCPersistentDrawer(document.querySelector('.mdc-persistent-drawer'));
document.querySelector('.menu').addEventListener('click', () => drawer.open = true);
CSS classes:
Class | Description |
---|
mdc-persistent-drawer | Mandatory. Needs to be set on the root element of the component. |
mdc-persistent-drawer__drawer | Mandatory. Needs to be set on the container node for the drawer content. |
Using the JS Component
MDC Persistent Drawer ships with a Component / Foundation combo which allows for frameworks to richly integrate the
correct drawer behaviors into idiomatic components.
Including in code
ES2015
import {MDCPersistentDrawer, MDCPersistentDrawerFoundation, util} from 'mdc-drawer';
CommonJS
const mdcDrawer = require('mdc-drawer');
const MDCPersistentDrawer = mdcDrawer.MDCPersistentDrawer;
const MDCPersistentDrawerFoundation = mdcDrawer.MDCPersistentDrawerFoundation;
const util = mdcDrawer.util;
AMD
require(['path/to/mdc-drawer'], mdcDrawer => {
const MDCPersistentDrawer = mdcDrawer.MDCPersistentDrawer;
const MDCPersistentDrawerFoundation = mdcDrawer.MDCPersistentDrawerFoundation;
const util = mdcDrawer.util;
});
Global
const MDCPersistentDrawer = mdc.drawer.MDCPersistentDrawer;
const MDCPersistentDrawerFoundation = mdc.drawer.MDCPersistentDrawerFoundation;
const util = mdc.drawer.util;
Automatic Instantiation
If you do not care about retaining the component instance for the persistent drawer, simply call attachTo()
and pass it a DOM element.
mdc.drawer.MDCPersistentDrawer.attachTo(document.querySelector('.mdc-persistent-drawer'));
Manual Instantiation
Persistent drawers can easily be initialized using their default constructors as well, similar to attachTo
.
import {MDCPersistentDrawer} from 'mdc-drawer';
const drawer = new MDCPersistentDrawer(document.querySelector('.mdc-persistent-drawer'));
Handling events
When the drawer is opened or closed, the component will emit a
MDCPersistentDrawer:open
or MDCPersistentDrawer:close
custom event with no data attached.
Events get emitted only when the drawer toggles its opened state, i.e. multiple consecutive
drawer.open = true
calls will result in only one MDCPersistentDrawer:open
.
Using the Foundation Class
MDC Persistent Drawer ships with an MDCPersistentDrawerFoundation
class that external frameworks and libraries can
use to integrate the component. As with all foundation classes, an adapter object must be provided.
The adapter for persistent drawers must provide the following functions, with correct signatures:
Method Signature | Description |
---|
addClass(className: string) => void | Adds a class to the root element. |
removeClass(className: string) => void | Removes a class from the root element. |
hasClass(className: string) => boolean | Returns boolean indicating whether element has a given class. |
hasNecessaryDom() => boolean | Returns boolean indicating whether the necessary DOM is present (namely, the mdc-persistent-drawer__drawer drawer container). |
registerInteractionHandler(evt: string, handler: EventListener) => void | Adds an event listener to the root element, for the specified event name. |
deregisterInteractionHandler(evt: string, handler: EventListener) => void | Removes an event listener from the root element, for the specified event name. |
registerDrawerInteractionHandler(evt: string, handler: EventListener) => void | Adds an event listener to the drawer container sub-element, for the specified event name. |
deregisterDrawerInteractionHandler(evt: string, handler: EventListener) => void | Removes an event listener from drawer container sub-element, for the specified event name. |
registerTransitionEndHandler(handler: EventListener) => void | Registers an event handler to be called when a transitionend event is triggered on the drawer container sub-element element. |
deregisterTransitionEndHandler(handler: EventListener) => void | Deregisters an event handler from a transitionend event listener. This will only be called with handlers that have previously been passed to registerTransitionEndHandler calls. |
registerDocumentKeydownHandler(handler: EventListener) => void | Registers an event handler on the document object for a keydown event. |
deregisterDocumentKeydownHandler(handler: EventListener) => void | Deregisters an event handler on the document object for a keydown event. |
getDrawerWidth() => number | Returns the current drawer width, in pixels. |
setTranslateX(value: number) => void | Sets the current position for the drawer, in pixels from the border. |
getFocusableElements() => NodeList | Returns the node list of focusable elements inside the drawer. |
saveElementTabState(el: Element) => void | Saves the current tab index for the element in a data property. |
restoreElementTabState(el: Element) => void | Restores the saved tab index (if any) for an element. |
makeElementUntabbable(el: Element) => void | Makes an element untabbable. |
notifyOpen() => void | Dispatches an event notifying listeners that the drawer has been opened. |
notifyClose() => void | Dispatches an event notifying listeners that the drawer has been closed. |
isRtl() => boolean | Returns boolean indicating whether the current environment is RTL. |
isDrawer(el: Element) => boolean | Returns boolean indicating whether the provided element is the drawer container sub-element. |
Temporary drawer usage
A temporary drawer is usually closed, sliding out at a higher elevation than the content when opened. It is appropriate
for any display size.
<aside class="mdc-temporary-drawer mdc-typography">
<nav class="mdc-temporary-drawer__drawer">
<header class="mdc-temporary-drawer__header">
<div class="mdc-temporary-drawer__header-content">
Header here
</div>
</header>
<nav id="icon-with-text-demo" class="mdc-temporary-drawer__content mdc-list">
<a class="mdc-list-item mdc-temporary-drawer--selected" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">inbox</i>Inbox
</a>
<a class="mdc-list-item" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">star</i>Star
</a>
</nav>
</nav>
</aside>
let drawer = new mdc.drawer.MDCTemporaryDrawer(document.querySelector('.mdc-temporary-drawer'));
document.querySelector('.menu').addEventListener('click', () => drawer.open = true);
Headers and toolbar spacers
Temporary drawers can use toolbar spacers, headers, or neither.
A toolbar spacer adds to the drawer the same amount of space that the toolbar takes up in your application. This is
very useful for visual alignment and consistency. Note that you can place content inside the toolbar spacer.
<aside class="mdc-temporary-drawer mdc-typography">
<nav class="mdc-temporary-drawer__drawer">
<div class="mdc-temporary-drawer__toolbar-spacer"></div>
<nav id="icon-with-text-demo" class="mdc-temporary-drawer__content mdc-list">
<a class="mdc-list-item mdc-temporary-drawer--selected" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">inbox</i>Inbox
</a>
<a class="mdc-list-item" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">star</i>Star
</a>
</nav>
</nav>
</aside>
A header, on the other hand, is a large rectangular area that maintains a 16:9 ratio. It's often used for user account
selection.
It uses an outer mdc-temporary-drawer__header
for positioning, with an inner mdc-temporary-drawer__header-content
for placing the actual content, which will be bottom-aligned.
<aside class="mdc-temporary-drawer mdc-typography">
<nav class="mdc-temporary-drawer__drawer">
<header class="mdc-temporary-drawer__header">
<div class="mdc-temporary-drawer__header-content">
Header content goes here
</div>
</header>
<nav id="icon-with-text-demo" class="mdc-temporary-drawer__content mdc-list">
<a class="mdc-list-item mdc-temporary-drawer--selected" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">inbox</i>Inbox
</a>
<a class="mdc-list-item" href="#">
<i class="material-icons mdc-list-item__start-detail" aria-hidden="true">star</i>Star
</a>
</nav>
</nav>
</aside>
CSS classes:
Class | Description |
---|
mdc-temporary-drawer | Mandatory. Needs to be set on the root element of the component. |
mdc-temporary-drawer__drawer | Mandatory. Needs to be set on the container node for the drawer content. |
mdc-temporary-drawer__content | Optional. Should be set on the list of items inside the drawer. |
mdc-temporary-drawer__toolbar-spacer | Optional. Add to node to provide the matching amount of space for toolbar. |
mdc-temporary-drawer__header | Optional. Add to container node to create a 16:9 drawer header. |
mdc-temporary-drawer__header-content | Optional. Add to content node inside mdc-temporary-drawer__header . |
Using the JS Component
MDC Temporary Drawer ships with a Component / Foundation combo which allows for frameworks to richly integrate the
correct drawer behaviors into idiomatic components.
Including in code
ES2015
import {MDCTemporaryDrawer, MDCTemporaryDrawerFoundation, util} from 'mdc-drawer';
CommonJS
const mdcDrawer = require('mdc-drawer');
const MDCTemporaryDrawer = mdcDrawer.MDCTemporaryDrawer;
const MDCTemporaryDrawerFoundation = mdcDrawer.MDCTemporaryDrawerFoundation;
const util = mdcDrawer.util;
AMD
require(['path/to/mdc-drawer'], mdcDrawer => {
const MDCTemporaryDrawer = mdcDrawer.MDCTemporaryDrawer;
const MDCTemporaryDrawerFoundation = mdcDrawer.MDCTemporaryDrawerFoundation;
const util = mdcDrawer.util;
});
Global
const MDCTemporaryDrawer = mdc.drawer.MDCTemporaryDrawer;
const MDCTemporaryDrawerFoundation = mdc.drawer.MDCTemporaryDrawerFoundation;
const util = mdc.drawer.util;
Automatic Instantiation
If you do not care about retaining the component instance for the temporary drawer, simply call attachTo()
and pass it a DOM element.
mdc.drawer.MDCTemporaryDrawer.attachTo(document.querySelector('.mdc-temporary-drawer'));
Manual Instantiation
Temporary drawers can easily be initialized using their default constructors as well, similar to attachTo
.
import {MDCTemporaryDrawer} from 'mdc-drawer';
const drawer = new MDCTemporaryDrawer(document.querySelector('.mdc-temporary-drawer'));
Handling events
When the drawer is opened or closed, the component will emit a
MDCTemporaryDrawer:open
or MDCTemporaryDrawer:close
custom event with no data attached.
Events get emitted only when the drawer toggles its opened state, i.e. multiple consecutive
drawer.open = true
calls will result in only one MDCTemporaryDrawer:open
.
Using the Foundation Class
MDC Temporary Drawer ships with an MDCTemporaryDrawerFoundation
class that external frameworks and libraries can
use to integrate the component. As with all foundation classes, an adapter object must be provided.
The adapter for temporary drawers must provide the following functions, with correct signatures:
Method Signature | Description |
---|
addClass(className: string) => void | Adds a class to the root element. |
removeClass(className: string) => void | Removes a class from the root element. |
hasClass(className: string) => boolean | Returns boolean indicating whether element has a given class. |
addBodyClass(className: string) => void | Adds a class to the body. |
removeBodyClass(className: string) => void | Removes a class from the body. |
hasNecessaryDom() => boolean | Returns boolean indicating whether the necessary DOM is present (namely, the mdc-temporary-drawer__drawer drawer container). |
registerInteractionHandler(evt: string, handler: EventListener) => void | Adds an event listener to the root element, for the specified event name. |
deregisterInteractionHandler(evt: string, handler: EventListener) => void | Removes an event listener from the root element, for the specified event name. |
registerDrawerInteractionHandler(evt: string, handler: EventListener) => void | Adds an event listener to the drawer container sub-element, for the specified event name. |
deregisterDrawerInteractionHandler(evt: string, handler: EventListener) => void | Removes an event listener from drawer container sub-element, for the specified event name. |
registerTransitionEndHandler(handler: EventListener) => void | Registers an event handler to be called when a transitionend event is triggered on the drawer container sub-element element. |
deregisterTransitionEndHandler(handler: EventListener) => void | Deregisters an event handler from a transitionend event listener. This will only be called with handlers that have previously been passed to registerTransitionEndHandler calls. |
registerDocumentKeydownHandler(handler: EventListener) => void | Registers an event handler on the document object for a keydown event. |
deregisterDocumentKeydownHandler(handler: EventListener) => void | Deregisters an event handler on the document object for a keydown event. |
getDrawerWidth() => number | Returns the current drawer width, in pixels. |
setTranslateX(value: number) => void | Sets the current position for the drawer, in pixels from the border. |
updateCssVariable(value: string) => void | Sets a CSS custom property, for controlling the current background opacity when manually dragging the drawer. |
getFocusableElements() => NodeList | Returns the node list of focusable elements inside the drawer. |
saveElementTabState(el: Element) => void | Saves the current tab index for the element in a data property. |
restoreElementTabState(el: Element) => void | Restores the saved tab index (if any) for an element. |
makeElementUntabbable(el: Element) => void | Makes an element untabbable. |
notifyOpen() => void | Dispatches an event notifying listeners that the drawer has been opened. |
notifyClose() => void | Dispatches an event notifying listeners that the drawer has been closed. |
isRtl() => boolean | Returns boolean indicating whether the current environment is RTL. |
isDrawer(el: Element) => boolean | Returns boolean indicating whether the provided element is the drawer container sub-element. |
The util API
External frameworks and libraries can use the following utility methods when integrating a component.
util.remapEvent(eventName, globalObj = window) => String
Remap touch events to pointer events, if the browser doesn't support touch events.
util.getTransformPropertyName(globalObj = window, forceRefresh = false) => String
Choose the correct transform property to use on the current browser.
util.supportsCssCustomProperties(globalObj = window) => Boolean
Determine whether the current browser supports CSS properties.
util.applyPassive(globalObj = window, forceRefresh = false) => object
Determine whether the current browser supports passive event listeners, and if so, use them.
util.saveElementTabState(el) => void
Save the tab state for an element.
util.restoreElementTabState(el) => void
Restore the tab state for an element, if it was saved.