feat: add an overlay to show general preview errs

frontend/app/view/preview/preview.tsx

@@ -3,6 +3,7 @@
 
 import { BlockNodeModel } from "@/app/block/blocktypes";
 import { Button } from "@/app/element/button";
+import { CopyButton } from "@/app/element/copybutton";
 import { CenteredDiv } from "@/app/element/quickelems";
 import { TypeAheadModal } from "@/app/modals/typeaheadmodal";
 import { ContextMenuModel } from "@/app/store/contextmenu";
@@ -39,9 +40,10 @@ import {
 } from "@/util/util";
 import { Monaco } from "@monaco-editor/react";
 import clsx from "clsx";
-import { Atom, atom, Getter, PrimitiveAtom, useAtomValue, useSetAtom, WritableAtom } from "jotai";
+import { Atom, atom, Getter, PrimitiveAtom, useAtom, useAtomValue, useSetAtom, WritableAtom } from "jotai";
 import { loadable } from "jotai/utils";
 import type * as MonacoTypes from "monaco-editor/esm/vs/editor/editor.api";
+import { OverlayScrollbarsComponent } from "overlayscrollbars-react";
 import { createRef, memo, useCallback, useEffect, useMemo, useState } from "react";
 import { TransformComponent, TransformWrapper, useControls } from "react-zoom-pan-pinch";
 import { CSVView } from "./csvview";
@@ -161,6 +163,7 @@ export class PreviewModel implements ViewModel {
     fileContent: WritableAtom<Promise<string>, [string], void>;
     newFileContent: PrimitiveAtom<string | null>;
     connectionError: PrimitiveAtom<string>;
+    errorMsgAtom: PrimitiveAtom<ErrorMsg>;
 
     openFileModal: PrimitiveAtom<boolean>;
     openFileModalDelay: PrimitiveAtom<boolean>;
@@ -195,6 +198,7 @@ export class PreviewModel implements ViewModel {
         this.filterOutNowsh = atom(true);
         this.monacoRef = createRef();
         this.connectionError = atom("");
+        this.errorMsgAtom = atom(null) as PrimitiveAtom<ErrorMsg | null>;
         this.viewIcon = atom((get) => {
             const blockData = get(this.blockAtom);
             if (blockData?.meta?.icon) {
@@ -1123,6 +1127,7 @@ function PreviewView({
     model: PreviewModel;
 }) {
     const connStatus = useAtomValue(model.connStatus);
+    const [errorMsg, setErrorMsg] = useAtom(model.errorMsgAtom);
     if (connStatus?.status != "connected") {
         return null;
     }
@@ -1143,6 +1148,7 @@ function PreviewView({
         <>
             {/* <OpenFileModal blockId={blockId} model={model} blockRef={blockRef} /> */}
             <div key="fullpreview" className="full-preview scrollbar-hide-until-hover">
+                {errorMsg && <ErrorOverlay errorMsg={errorMsg} resetOverlay={() => setErrorMsg(null)} />}
                 <div ref={contentRef} className="full-preview-content">
                     <SpecializedView parentRef={contentRef} model={model} />
                 </div>
@@ -1226,4 +1232,76 @@ const OpenFileModal = memo(
     }
 );
 
+const ErrorOverlay = memo(({ errorMsg, resetOverlay }: { errorMsg: ErrorMsg; resetOverlay: () => void }) => {
+    const showDismiss = errorMsg.showDismiss ?? true;
+    const buttonClassName = "outlined grey font-size-11 vertical-padding-3 horizontal-padding-7";
+
+    let iconClass = "fa-solid fa-circle-exclamation text-[var(--error-color)] text-base";
+    if (errorMsg.level == "warning") {
+        iconClass = "fa-solid fa-triangle-exclamation text-[var(--warning-color)] text-base";
+    }
+
+    const handleCopyToClipboard = useCallback(async () => {
+        await navigator.clipboard.writeText(errorMsg.text);
+    }, [errorMsg.text]);
+
+    return (
+        <div className="absolute top-[0] left-1.5 right-1.5 z-[var(--zindex-block-mask-inner)] overflow-hidden bg-[var(--conn-status-overlay-bg-color)] backdrop-blur-[50px] rounded-md shadow-lg">
+            <div className="flex flex-row justify-between p-2.5 pl-3 font-[var(--base-font)] text-[var(--secondary-text-color)]">
+                <div
+                    className={clsx("flex flex-row items-center gap-3 grow min-w-0", {
+                        "items-start": true,
+                    })}
+                >
+                    <i className={iconClass}></i>
+
+                    <div className="flex flex-col items-start gap-1 grow w-full">
+                        <div className="max-w-full text-xs font-semibold leading-4 tracking-[0.11px] text-white">
+                            {errorMsg.status}
+                        </div>
+
+                        <OverlayScrollbarsComponent
+                            className="group text-xs font-normal leading-[15px] tracking-[0.11px] text-wrap max-h-20 rounded-lg py-1.5 pl-0 relative w-full"
+                            options={{ scrollbars: { autoHide: "leave" } }}
+                        >
+                            <CopyButton
+                                className="invisible group-hover:visible flex absolute top-0 right-1 rounded backdrop-blur-lg p-1 items-center justify-end gap-1"
+                                onClick={handleCopyToClipboard}
+                                title="Copy"
+                            />
+                            <div>{errorMsg.text}</div>
+                        </OverlayScrollbarsComponent>
+                        {errorMsg.buttons?.map((buttonDef) => (
+                            <Button
+                                className={buttonClassName}
+                                onClick={() => {
+                                    buttonDef.onClick();
+                                    resetOverlay();
+                                }}
+                                key={crypto.randomUUID()}
+                            >
+                                {buttonDef.text}
+                            </Button>
+                        ))}
+                    </div>
+
+                    {showDismiss && (
+                        <div className="flex items-start">
+                            <Button
+                                className={clsx(buttonClassName, "fa-xmark fa-solid")}
+                                onClick={() => {
+                                    if (errorMsg.closeAction) {
+                                        errorMsg.closeAction();
+                                    }
+                                    resetOverlay();
+                                }}
+                            />
+                        </div>
+                    )}
+                </div>
+            </div>
+        </div>
+    );
+});
+
 export { PreviewView };

frontend/types/custom.d.ts

@@ -430,6 +430,20 @@ declare global {
         absParent: string;
         relName: string;
     };
+
+    type ErrorButtonDef = {
+        text: string;
+        onClick: () => void;
+    };
+
+    type ErrorMsg = {
+        status: string;
+        text: string;
+        level?: "error" | "warning";
+        buttons?: Array<ErrorButtonDef>;
+        closeAction?: () => void;
+        showDismiss?: boolean;
+    };
 }
 
 export {};