WIP - add extractor, generate snippet_data

node_modules/gatsby/cache-dir/commonjs/ensure-resources.js

@@ -0,0 +1,92 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+
+exports.__esModule = true;
+exports.default = void 0;
+
+var _react = _interopRequireDefault(require("react"));
+
+var _loader = _interopRequireDefault(require("./loader"));
+
+var _shallowCompare = _interopRequireDefault(require("shallow-compare"));
+
+class EnsureResources extends _react.default.Component {
+  constructor(props) {
+    super();
+    const {
+      location,
+      pageResources
+    } = props;
+    this.state = {
+      location: Object.assign({}, location),
+      pageResources: pageResources || _loader.default.loadPageSync(location.pathname)
+    };
+  }
+
+  static getDerivedStateFromProps({
+    location
+  }, prevState) {
+    if (prevState.location.href !== location.href) {
+      const pageResources = _loader.default.loadPageSync(location.pathname);
+
+      return {
+        pageResources,
+        location: Object.assign({}, location)
+      };
+    }
+
+    return null;
+  }
+
+  loadResources(rawPath) {
+    _loader.default.loadPage(rawPath).then(pageResources => {
+      if (pageResources && pageResources.status !== `error`) {
+        this.setState({
+          location: Object.assign({}, window.location),
+          pageResources
+        });
+      } else {
+        window.history.replaceState({}, ``, location.href);
+        window.location = rawPath;
+      }
+    });
+  }
+
+  shouldComponentUpdate(nextProps, nextState) {
+    // Always return false if we're missing resources.
+    if (!nextState.pageResources) {
+      this.loadResources(nextProps.location.pathname);
+      return false;
+    } // Check if the component or json have changed.
+
+
+    if (this.state.pageResources !== nextState.pageResources) {
+      return true;
+    }
+
+    if (this.state.pageResources.component !== nextState.pageResources.component) {
+      return true;
+    }
+
+    if (this.state.pageResources.json !== nextState.pageResources.json) {
+      return true;
+    } // Check if location has changed on a page using internal routing
+    // via matchPath configuration.
+
+
+    if (this.state.location.key !== nextState.location.key && nextState.pageResources.page && (nextState.pageResources.page.matchPath || nextState.pageResources.page.path)) {
+      return true;
+    }
+
+    return (0, _shallowCompare.default)(this, nextProps, nextState);
+  }
+
+  render() {
+    return this.props.children(this.state);
+  }
+
+}
+
+var _default = EnsureResources;
+exports.default = _default;