[improvement] rename packages dir to src (#3659)

src/dialog/index.js

@@ -0,0 +1,100 @@
+import Vue from 'vue';
+import VanDialog from './Dialog';
+import { isServer } from '../utils';
+
+let instance;
+
+function isInDocument(element) {
+  return document.body.contains(element);
+}
+
+function initInstance() {
+  if (instance) {
+    instance.$destroy();
+  }
+
+  instance = new (Vue.extend(VanDialog))({
+    el: document.createElement('div'),
+    // avoid missing animation when first rendered
+    propsData: {
+      lazyRender: false
+    }
+  });
+
+  instance.$on('input', value => {
+    instance.value = value;
+  });
+}
+
+function Dialog(options) {
+  /* istanbul ignore if */
+  if (isServer) {
+    return Promise.resolve();
+  }
+
+  return new Promise((resolve, reject) => {
+    if (!instance || !isInDocument(instance.$el)) {
+      initInstance();
+    }
+
+    Object.assign(instance, Dialog.currentOptions, options, {
+      resolve,
+      reject
+    });
+  });
+}
+
+Dialog.defaultOptions = {
+  value: true,
+  title: '',
+  message: '',
+  overlay: true,
+  className: '',
+  lockScroll: true,
+  beforeClose: null,
+  messageAlign: '',
+  getContainer: 'body',
+  cancelButtonText: '',
+  cancelButtonColor: null,
+  confirmButtonText: '',
+  confirmButtonColor: null,
+  showConfirmButton: true,
+  showCancelButton: false,
+  closeOnClickOverlay: false,
+  callback: action => {
+    instance[action === 'confirm' ? 'resolve' : 'reject'](action);
+  }
+};
+
+Dialog.alert = Dialog;
+
+Dialog.confirm = options => Dialog({
+  showCancelButton: true,
+  ...options
+});
+
+Dialog.close = () => {
+  if (instance) {
+    instance.value = false;
+  }
+};
+
+Dialog.setDefaultOptions = options => {
+  Object.assign(Dialog.currentOptions, options);
+};
+
+Dialog.resetDefaultOptions = () => {
+  Dialog.currentOptions = { ...Dialog.defaultOptions };
+};
+
+Dialog.resetDefaultOptions();
+
+Dialog.install = () => {
+  Vue.use(VanDialog);
+};
+
+Dialog.Component = VanDialog;
+
+Vue.prototype.$dialog = Dialog;
+
+export default Dialog;