chore: init theme (#14508)

* chore: init theme

* chore: update faas config

examples/components/theme-configurator/utils/ajax.js

@@ -0,0 +1,65 @@
+const defaultError = 'Server Error 500';
+const defaultTimeout = 'Request Timeout';
+const xhr = (method, url, data = null, cb) => {
+  return new window.Promise((resolve, reject) => {
+    const xhr = new XMLHttpRequest();
+    const doReject = (xhr) => {
+      reject(xhr.response || xhr.statusText || defaultError);
+    };
+    xhr.open(method, url);
+    xhr.setRequestHeader('Content-Type', 'application/json');
+    xhr.timeout = 10000;
+    if (cb) cb(xhr);
+    xhr.onload = () => {
+      if (xhr.readyState === 4) {
+        if ((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304) {
+          let response = xhr.response;
+          const type = xhr.getResponseHeader('Content-Type');
+          if (type.indexOf('zip') > -1) {
+            let filename = 'style.zip';
+            const disposition = xhr.getResponseHeader('content-disposition');
+            if (disposition && disposition.indexOf('attachment') !== -1) {
+              var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/;
+              var matches = filenameRegex.exec(disposition);
+              if (matches != null && matches[1]) {
+                filename = matches[1].replace(/['"]/g, '');
+              }
+            }
+            var blob = new Blob([response], { type });
+            var zipUrl = URL.createObjectURL(blob);
+            var link = document.createElement('a');
+            link.href = zipUrl;
+            link.download = filename;
+            link.click();
+            resolve(response);
+            return;
+          }
+          try {
+            response = JSON.parse(xhr.response);
+          } catch (e) {}
+          resolve(response);
+        } else {
+          doReject(xhr);
+        }
+      } else {
+        doReject(xhr);
+      }
+    };
+    xhr.onerror = () => {
+      doReject(xhr);
+    };
+    xhr.ontimeout = () => {
+      xhr.abort();
+      reject(defaultTimeout);
+    };
+    xhr.send(JSON.stringify(data));
+  });
+};
+
+export const post = (url, data, cb) => {
+  return xhr('POST', url, data, cb);
+};
+
+export const get = (url) => {
+  return xhr('GET', url);
+};