diff options
Diffstat (limited to 'node_modules/vue/src/platforms/weex/compiler/modules/class.js')
| -rw-r--r-- | node_modules/vue/src/platforms/weex/compiler/modules/class.js | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/node_modules/vue/src/platforms/weex/compiler/modules/class.js b/node_modules/vue/src/platforms/weex/compiler/modules/class.js new file mode 100644 index 00000000..371a08ea --- /dev/null +++ b/node_modules/vue/src/platforms/weex/compiler/modules/class.js @@ -0,0 +1,73 @@ +/* @flow */ + +import { parseText } from 'compiler/parser/text-parser' +import { + getAndRemoveAttr, + getBindingAttr, + baseWarn +} from 'compiler/helpers' + +type StaticClassResult = { + dynamic: boolean, + classResult: string +}; + +function transformNode (el: ASTElement, options: CompilerOptions) { + const warn = options.warn || baseWarn + const staticClass = getAndRemoveAttr(el, 'class') + const { dynamic, classResult } = parseStaticClass(staticClass, options) + if (process.env.NODE_ENV !== 'production' && dynamic && staticClass) { + warn( + `class="${staticClass}": ` + + 'Interpolation inside attributes has been deprecated. ' + + 'Use v-bind or the colon shorthand instead.' + ) + } + if (!dynamic && classResult) { + el.staticClass = classResult + } + const classBinding = getBindingAttr(el, 'class', false /* getStatic */) + if (classBinding) { + el.classBinding = classBinding + } else if (dynamic) { + el.classBinding = classResult + } +} + +function genData (el: ASTElement): string { + let data = '' + if (el.staticClass) { + data += `staticClass:${el.staticClass},` + } + if (el.classBinding) { + data += `class:${el.classBinding},` + } + return data +} + +function parseStaticClass (staticClass: ?string, options: CompilerOptions): StaticClassResult { + // "a b c" -> ["a", "b", "c"] => staticClass: ["a", "b", "c"] + // "a {{x}} c" -> ["a", x, "c"] => classBinding: '["a", x, "c"]' + let dynamic = false + let classResult = '' + if (staticClass) { + const classList = staticClass.trim().split(' ').map(name => { + const result = parseText(name, options.delimiters) + if (result) { + dynamic = true + return result.expression + } + return JSON.stringify(name) + }) + if (classList.length) { + classResult = '[' + classList.join(',') + ']' + } + } + return { dynamic, classResult } +} + +export default { + staticKeys: ['staticClass'], + transformNode, + genData +} |
