JetBrains IDE支持Vue.js

How to integrate WebStorm with Vue.js

This is the checklist of ways to improve WebStorm(PhpStorm, Idea, etc.) experience:
Use Vue.js plugin.

UPDATE: Both plugins have own problems atm
vue-for-idea has weird side-effects (hiding node_modules
from project view);
John Kelly's Vue.js plugin force you to use special declarations for ES6 and scss, sass (see deprecated section below)

You can install it via Settings(Preferences)
=> Plugins
=> Browse repositories
=> (search for) "vue"

choose one or both: "Vue.js" or "vue-for-idea". It's up to you.
Set "Javascript Language Version" to ES6.

Open Settings(Preferences)
=> Language & Frameworks
=> JavaScript
. Set Javascript Language Version
to ECMAcript6

https://github.com/postalservice14/vuejs-plugin

Improve HTML-tag's attributes highlighting

Open Settings(Preferences)
=> Editor
=> Inspection
=> HTML
=> select Unknown HTML tag attributes
=> click Custom HTML tag attributes
. Add your attributes.

For example, my list:
v-on,v-on:click,v-on:change,v-on:focus,v-on:blur,v-on:keyup,:click,@click,v-model,v-text,v-bind,:disabled,@submit,v-class,:class,v-if,:value,v-for,scoped,@click.prevent,number,:readonly,@input,@click,v-show,v-else,readonly,v-link,:title,:for,tab-index,:name,:id,:checked,transition,@submit.prevent,autocapitalize,autocorrect,slot,v-html,:style

P.S. For more full list of custom tags check @Alex's answer below
P.P.S. Actually it's should work in more common way:
Open Settings(Preferences)
=> Languages & Frameworks
=> Javascript
=> Libraries
=> click Add
(after this you should set path to the vue.js
. You can dowmload it with npm or whatever)

(More info in this answer: http://stackoverflow.com/a/28903910/930170)
But I didn't get success with that.
Enable Node.js Coding Assistance:

Open Settings(Preferences)
=> Languages & Frameworks
=> Node.js and NPM

If "Node.js core library is not enabled", click button Enabled

DEPRECATED (may be required if you don't use vue-plugins for IDE):
*Make .vue
files to be recognized as a html-flies.

Open Settings(Preferences)
=> Editor
=>File Types
find HTML
in Recognized File Types
, then add *.vue
as a new Registered Patterns.

Improve ES6 highlight.

In each vue
file with tag:
<script type="text/babel"> // your code here... </script>

(This is would help to recognise constructions like setTimeout(() => {console.log(1) }, 100)
)
Improve styles highlight. (sass, scss, etc)

In each vue
file with tag:
<style lang="sass" rel="stylesheet/sass"> // your style here... </style>

For scss
it's gonna be <style lang="scss" type="text/scss">

UPD: The steps below are not so trusted, they may helps, or may not, some of them I didn't check personally, or I didn't catch is any effect exist or not.
Import TextMate Bundle functionality.

https://www.jetbrains.com/help/phpstorm/2016.1/textmate-bundles.html?origin=old_help

Import TypeScript tables for vue.

Open Settings(Preferences)
=> Language & Frameworks
=> JavaScript
=> Libraries
. Click Download
, Switch to TypeScript community stubs
. And download all tabs with vue
word.
Example: https://youtu.be/4mKiGkokyx8?t=84 (from 1:24)

UPD2: For more info check the issue at github: https://github.com/vuejs/vue-syntax-highlight/issues/3
UPD3: FAQ:
Can I improve pug
(jade
) highlight?
No. Because Webstorm doesn't support template language injection... Issue has been up since 2013 with no official word.