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feat: implement Reader page for viewing encrypted letters and add read-only mode to ComposeCanvas

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ramvignesh-b
2026-04-13 13:46:55 +05:30
parent 2405f9cab2
commit 2776aac69a
14 changed files with 749 additions and 228 deletions
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frontend/src/components/ui/ComposeCanvas.tsx
+67 -53
View File
@@ -17,7 +17,10 @@ export interface FabricImageWithFile extends fabric.FabricImage {
_customRawFile: File;
}
export const ComposeCanvas = forwardRef<CanvasTools>((_props, ref) => {
export const ComposeCanvas = forwardRef<
CanvasTools,
{ readOnly?: boolean; initialData?: any }
>(({ readOnly = false, initialData = null }, ref) => {
const wrapperRef = useRef<HTMLDivElement>(null);
const canvasRef = useRef<HTMLCanvasElement>(null);
const fabricRef = useRef<fabric.Canvas | null>(null);
@@ -51,7 +54,7 @@ export const ComposeCanvas = forwardRef<CanvasTools>((_props, ref) => {
canvas = new fabric.Canvas(canvasRef.current, {
width: finalWidth,
height: initialHeight,
selection: false,
selection: !readOnly,
preserveObjectStacking: true,
allowTouchScrolling: true,
});
@@ -61,65 +64,76 @@ export const ComposeCanvas = forwardRef<CanvasTools>((_props, ref) => {
const wrapperEl = canvas.getElement().parentElement;
if (wrapperEl) wrapperEl.style.background = "transparent";
const textbox = new fabric.Textbox("Take a deep breath...", {
name: "main-textbox",
originX: "left",
originY: "top",
left: PAD,
top: PAD,
width: finalWidth - PAD * 2,
fontSize: 16,
fontWeight: 500,
fontFamily: "Playfair Display Variable",
fill: "#000",
lineHeight: 1.5,
editable: true,
hasControls: false,
hasBorders: false,
objectCaching: false,
splitByGrapheme: false,
lockMovementX: true,
lockMovementY: true,
lockScalingX: true,
lockScalingY: true,
});
textboxRef.current = textbox;
canvas.add(textbox);
textbox.on("changed", () => {
if (!canvas || !wrapperRef.current) return;
const neededHeight = textbox.top + textbox.height + PAD;
if (neededHeight > canvas.height) {
const newH = neededHeight + PAD;
canvas.setDimensions({ height: newH });
wrapperRef.current.style.height = `${newH}px`;
if (initialData) {
await canvas.loadFromJSON(initialData);
if (readOnly) {
canvas.getObjects().forEach((obj) => {
obj.selectable = false;
obj.evented = false;
});
}
});
canvas.renderAll();
} else {
const textbox = new fabric.Textbox("Take a deep breath...", {
name: "main-textbox",
originX: "left",
originY: "top",
left: PAD,
top: PAD,
width: finalWidth - PAD * 2,
fontSize: 16,
fontWeight: 500,
fontFamily: "Playfair Display Variable",
fill: "#000",
lineHeight: 1.5,
editable: true,
hasControls: false,
hasBorders: false,
objectCaching: false,
splitByGrapheme: false,
lockMovementX: true,
lockMovementY: true,
lockScalingX: true,
lockScalingY: true,
});
setTimeout(() => {
if (!isMounted) return;
canvas?.setActiveObject(textbox);
textbox.enterEditing();
canvas?.renderAll();
textboxRef.current = textbox;
canvas.add(textbox);
const hiddenTextareas = document.querySelectorAll(
'textarea[data-fabric="textarea"]',
);
hiddenTextareas.forEach((ta) => {
if (!ta.getAttribute("aria-label")) {
ta.setAttribute("aria-label", "Canvas text input");
textbox.on("changed", () => {
if (!canvas || !wrapperRef.current) return;
const neededHeight = textbox.top + textbox.height + PAD;
if (neededHeight > canvas.height) {
const newH = neededHeight + PAD;
canvas.setDimensions({ height: newH });
wrapperRef.current.style.height = `${newH}px`;
}
});
}, 100);
canvas.on("mouse:down", (opt) => {
if (!opt.target || opt.target === textbox) {
setTimeout(() => {
if (!isMounted) return;
canvas?.setActiveObject(textbox);
textbox.enterEditing();
canvas?.renderAll();
}
});
const hiddenTextareas = document.querySelectorAll(
'textarea[data-fabric="textarea"]',
);
hiddenTextareas.forEach((ta) => {
if (!ta.getAttribute("aria-label")) {
ta.setAttribute("aria-label", "Canvas text input");
}
});
}, 100);
canvas.on("mouse:down", (opt) => {
if (!opt.target || opt.target === textbox) {
canvas?.setActiveObject(textbox);
textbox.enterEditing();
canvas?.renderAll();
}
});
}
};
init();
@@ -130,7 +144,7 @@ export const ComposeCanvas = forwardRef<CanvasTools>((_props, ref) => {
fabricRef.current = null;
textboxRef.current = null;
};
}, []);
}, [initialData, readOnly]);
useImperativeHandle(ref, () => ({
addImage: (url: string, file: File) => {