What is the best way to add a triangle pointer to the Vuetify v-menu component?

Is there a way to insert a triangular pointer into the v-menu component of Vuetify 2.x?

I am referring to this common feature found on web pages (as seen in this screenshot from Github):

https://i.stack.imgur.com/DMOjF.png

I have included sample code here with a menu that appears as a dropdown when a button is clicked. I successfully added a margin of 40px to the menu using CSS, pushing it down slightly. This creates some space for the triangle, but how can I implement this triangular pointer like the one shown on Github?

cssvue.jsvuetify.js

Answer №1

Codepen solution

Here is a possible solution that may work for you:

.my-menu {
  margin-top: 40px;
  contain: initial;
  overflow: visible;
}
.my-menu::before {
  position: absolute;
  content: "";
  top: 0;
  right: 10px;
  transform: translateY(-100%);
  width: 10px; 
  height: 13px; 
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 13px solid #fff;
}

Outcome:

https://i.stack.imgur.com/azbqC.png

Please note: If you'd like more information on how this code functions, check out this resource: css tricks

Answer №2

Regarding vuetify, the recommended approach is to use the activator slot along with a v-model to manage the menu state:

<v-menu v-model="menu" ...>
   <template v-slot:activator="{ on }">
      <v-btn 
        icon
        v-on="on">
        <v-icon>mdi-plus>
        <v-icon v-if="menu">mdi-menu-up</v-icon>
        <v-icon v-else>mdi-menu-up</v-icon>
      </v-btn>          
   </template>
</v-menu>

Ensure that you connect the v-model attribute to a data property within the parent component definition.

Note

Including 2 icons inside a <v-btn icon may require some adjustments for proper layout alignment.

Answer №3

Consider implementing the following code snippet:

.navigation-menu {
  margin-top: 36px;
  overflow: visible;
}

.navigation-menu .v-list::before {
  right: 10px;
  top: -10px;
  position: absolute;
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 10px 10px 10px;
  border-color: transparent transparent #fff transparent;
}

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