chushihua

node_modules/vue-loader/lib/template-compiler/modules/transform-require.js

@@ -0,0 +1,46 @@
+// vue compiler module for transforming `<tag>:<attribute>` to `require`
+
+const urlToRequire = require('../url-to-require')
+
+const defaultOptions = {
+  video: ['src', 'poster'],
+  source: 'src',
+  img: 'src',
+  image: 'xlink:href'
+}
+
+module.exports = userOptions => {
+  const options = userOptions
+    ? Object.assign({}, defaultOptions, userOptions)
+    : defaultOptions
+
+  return {
+    postTransformNode: node => {
+      transform(node, options)
+    }
+  }
+}
+
+function transform (node, options) {
+  for (const tag in options) {
+    if ((tag === '*' || node.tag === tag) && node.attrs) {
+      const attributes = options[tag]
+      if (typeof attributes === 'string') {
+        node.attrs.some(attr => rewrite(attr, attributes))
+      } else if (Array.isArray(attributes)) {
+        attributes.forEach(item => node.attrs.some(attr => rewrite(attr, item)))
+      }
+    }
+  }
+}
+
+function rewrite (attr, name) {
+  if (attr.name === name) {
+    const value = attr.value
+    // only transform static URLs
+    if (value.charAt(0) === '"' && value.charAt(value.length - 1) === '"') {
+      attr.value = urlToRequire(value.slice(1, -1))
+      return true
+    }
+  }
+}