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    Vue component to trap the focus within a DOM element


    npm install focus-trap focus-trap-vue


    This library exports one single named export FocusTrap and requires focus-trap as a peer dependency. So you can locally import the component or declare it globally:

    import { FocusTrap } from 'focus-trap-vue'
    Vue.component('FocusTrap', FocusTrap)

    FocusTrap can be controlled in three different ways:

    • by using the active Boolean prop
    • by using v-model (uses the active prop)
    • by calling the activate/deactivate method on the component

    The recommended approach is using v-model and it should contain one single child:

    <focus-trap v-model="isActive">
      <modal-dialog tabindex="-1">
          Do you accept the cookies?
        <button @click="acceptCookies">Yes</button>
        <button @click="isActive = false">No</button>

    When isActive becomes true, it activates the focus trap. By default it sets the focus to its child, so make sure the element is a focusable element. If it's not you wil need to give it the tabindex="-1" attribute. You can also customize the initial element focused. This element should be an element that the user can interact with. For example, an input. It's a good practice to always focus an interactable element instead of the modal container:

    <focus-trap v-model="isActive" :initial-focus="() => $refs.nameInput">
          What name do you want to use?
        <form @submit.prevent="setName">
            New Name
            <input ref="nameInput" />
          <button>Change name</button>


    FocusTrap also accepts other props:

    • escapeDeactivates: boolean
    • returnFocusOnDeactivate: boolean
    • allowOutsideClick: boolean | ((e: MouseEvent) => boolean)
    • clickOutsideDeactivates: boolean
    • initialFocus: string | (() => Element) Selector or function returning an Element
    • fallbackFocus: string | (() => Element) Selector or function returning an Element

    Please, refer to focus-trap documentation to know what they do.


    FocusTrap emits 2 events. They are in-sync with the prop active

    • activate: Whenever the trap activates
    • deactivate: Whenever the trap deactivates (note it can also be deactivated by pressing Esc or clicking outside)


    FocusTrap can be used without v-model. In that case, you will use the methods and probably need to initialize the trap as deactivated, otherwise, the focus will start as active:

    <button @click="() => $refs.focusTrap.activate()">Show the modal</button>
    <focus-trap :active="false" ref="focusTrap">
        <p>Hello there!</p>
        <button @click="() => $refs.focusTrap.deactivate()">Okay...</button>

    Note the use of arrow functions, this is necessary because we are accessing $refs which are unset on first render.





    npm i focus-trap-vue

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