Add CellOutputViewer for SandboxOutputs (#686)

* Initial commit

* Optimizations

* Optimize notebookOutputViewer bundle size by lazy loading transforms

* Update package-lock.json

* More optimizations

* Updates

* Fix unit test and other updates

* Address feedback

* Update package-lock.json

* Update test snapshots

* Fix build

* Reduce cellOutputViewer bundle size

* Renaming

src/Explorer/Notebook/NotebookRenderer/outputs/SandboxOutputs.tsx

@@ -0,0 +1,132 @@
+import { JSONObject } from "@nteract/commutable";
+import { outputToJS } from "@nteract/commutable/lib/v4";
+import { actions, AppState, ContentRef, selectors } from "@nteract/core";
+import IframeResizer from "iframe-resizer-react";
+import Immutable from "immutable";
+import postRobot from "post-robot";
+import React from "react";
+import { connect } from "react-redux";
+import { Dispatch } from "redux";
+import { CellOutputViewerProps } from "../../../../CellOutputViewer/CellOutputViewer";
+
+// Adapted from https://github.com/nteract/nteract/blob/main/packages/stateful-components/src/outputs/index.tsx
+// to add support for sandboxing using <iframe>
+
+interface ComponentProps {
+  id: string;
+  contentRef: ContentRef;
+}
+
+interface StateProps {
+  hidden: boolean;
+  expanded: boolean;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  outputs: Immutable.List<any>;
+}
+
+interface DispatchProps {
+  onMetadataChange?: (metadata: JSONObject, mediaType: string, index?: number) => void;
+}
+
+export class SandboxOutputs extends React.PureComponent<ComponentProps & StateProps & DispatchProps> {
+  private childWindow: Window;
+
+  render(): JSX.Element {
+    // Using min-width to set the width of the iFrame, works around an issue in iOS that can prevent the iFrame from sizing correctly.
+    return (
+      <IframeResizer
+        checkOrigin={false}
+        loading="lazy"
+        heightCalculationMethod="taggedElement"
+        onLoad={(event) => this.handleFrameLoad(event)}
+        src="./cellOutputViewer.html"
+        style={{ height: "1px", width: "1px", minWidth: "100%", border: "none" }}
+        sandbox="allow-downloads allow-popups allow-forms allow-pointer-lock allow-scripts allow-popups-to-escape-sandbox"
+      />
+    );
+  }
+
+  handleFrameLoad(event: React.SyntheticEvent<HTMLIFrameElement, Event>): void {
+    this.childWindow = (event.target as HTMLIFrameElement).contentWindow;
+    this.sendPropsToFrame();
+  }
+
+  sendPropsToFrame(): void {
+    if (!this.childWindow) {
+      return;
+    }
+
+    const props: CellOutputViewerProps = {
+      id: this.props.id,
+      contentRef: this.props.contentRef,
+      hidden: this.props.hidden,
+      expanded: this.props.expanded,
+      outputs: this.props.outputs.toArray().map((output) => outputToJS(output)),
+      onMetadataChange: this.props.onMetadataChange,
+    };
+
+    postRobot.send(this.childWindow, "props", props);
+  }
+
+  componentDidMount(): void {
+    this.sendPropsToFrame();
+  }
+
+  componentDidUpdate(): void {
+    this.sendPropsToFrame();
+  }
+}
+
+export const makeMapStateToProps = (
+  initialState: AppState,
+  ownProps: ComponentProps
+): ((state: AppState) => StateProps) => {
+  const mapStateToProps = (state: AppState): StateProps => {
+    let outputs = Immutable.List();
+    let hidden = false;
+    let expanded = false;
+
+    const { contentRef, id } = ownProps;
+    const model = selectors.model(state, { contentRef });
+
+    if (model && model.type === "notebook") {
+      const cell = selectors.notebook.cellById(model, { id });
+      if (cell) {
+        outputs = cell.get("outputs", Immutable.List());
+        hidden = cell.cell_type === "code" && cell.getIn(["metadata", "jupyter", "outputs_hidden"]);
+        expanded = cell.cell_type === "code" && cell.getIn(["metadata", "collapsed"]) === false;
+      }
+    }
+
+    return { outputs, hidden, expanded };
+  };
+  return mapStateToProps;
+};
+
+export const makeMapDispatchToProps = (
+  initialDispath: Dispatch,
+  ownProps: ComponentProps
+): ((dispatch: Dispatch) => DispatchProps) => {
+  const { id, contentRef } = ownProps;
+  const mapDispatchToProps = (dispatch: Dispatch) => {
+    return {
+      onMetadataChange: (metadata: JSONObject, mediaType: string, index?: number) => {
+        dispatch(
+          actions.updateOutputMetadata({
+            id,
+            contentRef,
+            metadata,
+            index: index || 0,
+            mediaType,
+          })
+        );
+      },
+    };
+  };
+  return mapDispatchToProps;
+};
+
+export default connect<StateProps, DispatchProps, ComponentProps, AppState>(
+  makeMapStateToProps,
+  makeMapDispatchToProps
+)(SandboxOutputs);