reorganize files

2025-10-06 19:59:41 +07:00 · 2019-01-22 19:25:12 +01:00
parent 5652ef65ad
commit 3766fbc7b8
101 changed files with 31 additions and 43 deletions
@@ -0,0 +1,43 @@
+import {VNode, VNodeData} from '../vnode';
+import {Module} from './module';
+
+export type Dataset = Record<string, string>;
+
+const CAPS_REGEX = /[A-Z]/g;
+
+function updateDataset(oldVnode: VNode, vnode: VNode): void {
+  let elm: HTMLElement = vnode.elm as HTMLElement,
+    oldDataset = (oldVnode.data as VNodeData).dataset,
+    dataset = (vnode.data as VNodeData).dataset,
+    key: string;
+
+  if (!oldDataset && !dataset) return;
+  if (oldDataset === dataset) return;
+  oldDataset = oldDataset || {};
+  dataset = dataset || {};
+  const d = elm.dataset;
+
+  for (key in oldDataset) {
+    if (!dataset[key]) {
+      if (d) {
+        if (key in d) {
+          delete d[key];
+        }
+      } else {
+        elm.removeAttribute('data-' + key.replace(CAPS_REGEX, '-$&').toLowerCase());
+      }
+    }
+  }
+  for (key in dataset) {
+    if (oldDataset[key] !== dataset[key]) {
+      if (d) {
+        d[key] = dataset[key];
+      } else {
+        elm.setAttribute('data-' + key.replace(CAPS_REGEX, '-$&').toLowerCase(), dataset[key]);
+      }
+    }
+  }
+}
+
+export const datasetModule = {create: updateDataset, update: updateDataset} as Module;
+export default datasetModule;