vue
Version:
Reactive, component-oriented view layer for modern web interfaces.
86 lines (77 loc) • 2.29 kB
JavaScript
/* @flow */
import Vue from './web-runtime'
import { warn, cached } from 'core/util/index'
import { query } from 'web/util/index'
import { shouldDecodeNewlines } from 'web/util/compat'
import { compileToFunctions } from 'web/compiler/index'
const idToTemplate = cached(id => {
const el = query(id)
return el && el.innerHTML
})
const mount = Vue.prototype.$mount
Vue.prototype.$mount = function (
el?: string | Element,
hydrating?: boolean
): Component {
el = el && query(el)
/* istanbul ignore if */
if (el === document.body || el === document.documentElement) {
process.env.NODE_ENV !== 'production' && warn(
`Do not mount Vue to <html> or <body> - mount to normal elements instead.`
)
return this
}
const options = this.$options
// resolve template/el and convert to render function
if (!options.render) {
let template = options.template
if (template) {
if (typeof template === 'string') {
if (template.charAt(0) === '#') {
template = idToTemplate(template)
/* istanbul ignore if */
if (process.env.NODE_ENV !== 'production' && !template) {
warn(
`Template element not found or is empty: ${options.template}`,
this
)
}
}
} else if (template.nodeType) {
template = template.innerHTML
} else {
if (process.env.NODE_ENV !== 'production') {
warn('invalid template option:' + template, this)
}
return this
}
} else if (el) {
template = getOuterHTML(el)
}
if (template) {
const { render, staticRenderFns } = compileToFunctions(template, {
warn,
shouldDecodeNewlines,
delimiters: options.delimiters
}, this)
options.render = render
options.staticRenderFns = staticRenderFns
}
}
return mount.call(this, el, hydrating)
}
/**
* Get outerHTML of elements, taking care
* of SVG elements in IE as well.
*/
function getOuterHTML (el: Element): string {
if (el.outerHTML) {
return el.outerHTML
} else {
const container = document.createElement('div')
container.appendChild(el.cloneNode(true))
return container.innerHTML
}
}
Vue.compile = compileToFunctions
export default Vue