vue-2-dropdown

Vue2 plugin for tooltips, popovers and dropdown. The plugin provides a VDropdown component which is very easy to use.

Features

• SSR support
• Ability to set alternative placement in cases when the pop-up does not fit into the screen's visibility
• Flexibility and ease of use

Install

npm install --save vue-2-dropdown

Global Registration

import Vue from 'vue'
import Dropdown from 'vue-2-dropdown'
import 'vue-2-dropdown/dist/vue-2-dropdown.css';

Vue.use(Dropdown)

Local Registration

import { VDropdown } from 'vue-2-dropdown'
import 'vue-2-dropdown/dist/vue-2-dropdown.css';

export default {
  components: {
    VDropdown,
  },
}

Usage

<template>
  <v-dropdown>
    <div>trigger</div>

    <template #portal>
      <div>content</div>
    </template>
  </v-dropdown>
</template>

Props

Name	Type	Default
shown	boolean	false
arrow	boolean	true
placement	string	'bottom-center'
trigger	string	'click'
relativeEl	string,HTMLElement	''
viewportEl	string,HTMLElement	''
documentTargets	array	['portal', 'trigger']
offset	array	[0, 0, 0, 0]
viewportOffset	array	[0, 0, 0, 0]
portalClass	string,object,array	''
triggerClass	string,object,array	''
autoHide	boolean	true
hoverPortal	boolean	false
clickPortal	boolean	false
disabled	boolean	false
noPadding	boolean	false
zIndex	string,number	50
transition	string	'fade'
transitionMode	string	'in-out'
mountTo	string	'body'
mountSelf	boolean	false
autoAlignment	boolean	false

shown

The parameter is responsible for displaying the pop-up. It can be useful when more complex logic for displaying a popup is needed. Supports sync modifier. In this case, you will most likely have to configure the following options: trigger, documentTargets

arrow

Arrow display

placement

A very important parameter. Has the following meanings:

• "top-start"
• "top-center"
• "top-end"
• "top-stretch"
• "right-start"
• "right-center"
• "right-end"
• "right-stretch"
• "bottom-start"
• "bottom-center"
• "bottom-end"
• "bottom-stretch"
• "left-start"
• "left-center"
• "left-end"
• "left-stretch"

The first word before the hyphen specifies the position relative to the trigger, the second indicates the alignment relative to the trigger. These values can be combined: 'bottom-center|top-center' - this will mean that the pop-up will be displayed in the bottom center, but if it does not fit into the viewport of the window, then it will move to the top center.

trigger

Trigger at which the pop-up will open. Possible values: 'click', 'hover', ''. An empty string is indicated if you do not need triggers and want to do the logic yourself using the shown parameter

relativeEl

It is recommended to use strings (css selector) as an option, since $ refs is not reactive. However, document.querySelector might well work. If css selector is passed - the element will be searched inside the component (this.$el.querySelector).

<template>
  <div>
    <v-dropdown relative-el="[data-dropdown-relative]">
      <div>
        <div>
          trigger
        </div>
        <i data-dropdown-relative>icon</i>
      </div>

      <template #portal>
        <div>content</div>
      </template>
    </v-dropdown>
  </div>
</template>

viewportEl

The element from which to read the viewport. Best used with mountSelf parameter.

It is recommended to use strings (css selector) as an option, since $ refs is not reactive. However, document.querySelector might well work.

If passed in css the selector will look for the closest parent (this.$el.closest)

<template>
  <div data-dropdown-viewport style="overflow: scroll;">
    <div>relative el</div>
    <v-dropdown mount-self viewport-el="[data-dropdown-viewport]">
      <div>trigger</div>

      <template #portal>
        <div>content</div>
      </template>
    </v-dropdown>
  </div>
</template>

documentTargets

This option is only meaningful if the autoHide parameter is enabled. By default, the pop-up will close when clicking on any element except the trigger and the portal. They can be changed:

<template>
  <div>
    <v-dropdown :document-targets="['portal']">
      ...
    </v-dropdown>
  </div>
</template>

then the pop-up will close when you click on any element other than the portal.

offset

Pop-up offset. The first element of the array sets the offset along the x-axis, the second along the y-axis. the third and fourth are needed to offset the alternative placement (the third is x, the fourth is y).

viewportOffset

Sets the offset of the visible area of the window. ([top, right, bottom, left]).

portalClass

css classes of portal.

triggerClass

css classes of trigger.

autoHide

Closes the popup when clicking on any element except: documentTargets.

hoverPortal

Only meaningful when trigger = 'hover'. Popup does not close when hovering over portal.

clickPortal

Only meaningful when trigger = 'click'. Closes the popup when the portal is clicked.

disabled

Prevents the pop-up from opening.

noPadding

Removes paddings from the portal.

zIndex

z-index of the portal

transition

css class for transition. There is only fade by default. If you want other transitions, you will have to write them yourself.

transitionMode

transition-mode

mountTo

Element selector to which the portal will be inserted.

mountSelf

Prevents the creation of a portal.

autoAlignment

If enabled, it will apply automatic alignment depending on whether the popup is visible or not.