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support arrow bindings via start and end in api

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This commit is contained in:
Aakansha Doshi 2023-05-22 21:22:36 +05:30
parent 0449cccc39
commit d8c901e0c1
4 changed files with 114 additions and 12 deletions
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18
src/data/types.ts
View file

@ -1,5 +1,7 @@
import {
ExcalidrawBindableElement,
ExcalidrawElement,
ExcalidrawLinearElement,
FontFamilyValues,
TextAlign,
VerticalAlign,
@ -71,6 +73,22 @@ export interface ImportedDataState {
type: "text";
text: string;
} & ElementConstructorOpts)
| ({
type: "arrow";
label?: {
text: string;
fontSize?: number;
fontFamily?: FontFamilyValues;
textAlign?: TextAlign;
verticalAlign?: VerticalAlign;
} & MarkOptional<ElementConstructorOpts, "x" | "y">;
start?: {
type: ExcalidrawBindableElement["type"] & ElementConstructorOpts;
};
end?: {
type: ExcalidrawBindableElement["type"] & ElementConstructorOpts;
};
} & ElementConstructorOpts)
)[]
| null;
appState?: Readonly<

2
src/element/binding.ts
View file

@ -190,7 +190,7 @@ export const maybeBindLinearElement = (
}
};
const bindLinearElement = (
export const bindLinearElement = (
linearElement: NonDeleted<ExcalidrawLinearElement>,
hoveredElement: ExcalidrawBindableElement,
startOrEnd: "start" | "end",

98
src/element/newElement.ts
View file

@ -12,6 +12,7 @@ import {
ExcalidrawFreeDrawElement,
FontFamilyValues,
ExcalidrawTextContainer,
ExcalidrawBindableElement,
} from "../element/types";
import {
arrayToMap,
@ -49,6 +50,7 @@ import {
import { isArrowElement } from "./typeChecks";
import { MarkOptional, Merge, Mutable } from "../utility-types";
import { ImportedDataState } from "../data/types";
import { bindLinearElement } from "./binding";
export const ELEMENTS_SUPPORTING_PROGRAMMATIC_API = [
"rectangle",
@ -670,30 +672,116 @@ export const convertToExcalidrawElements = (
res.push(element as ExcalidrawElement);
return;
}
let startBoundElement;
let endBoundElement;
//@ts-ignore
if (VALID_CONTAINER_TYPES.has(element.type) && element?.label?.text) {
//@ts-ignore
const elements = bindTextToContainer(element, element.label);
res.push(...elements);
const [container, text] = elements;
if (container.type === "arrow") {
//@ts-ignore
const { start, end } = element;
if (start) {
const width = start?.width ?? 100;
const height = start?.height ?? 100;
startBoundElement = newElement({
x: start.x || container.x - width,
y: start.y || container.y - height / 2,
width,
height,
...start,
}) as ExcalidrawBindableElement;
bindLinearElement(
container as ExcalidrawLinearElement,
startBoundElement,
"start",
);
}
if (end) {
const height = end?.height ?? 100;
endBoundElement = newElement({
x: end.x || container.x + container.width,
y: end.y || container.y - height / 2,
width: end?.width ?? 100,
height,
...end,
}) as ExcalidrawBindableElement;
bindLinearElement(
container as ExcalidrawLinearElement,
endBoundElement,
"end",
);
}
}
res.push(container);
res.push(text);
if (startBoundElement) {
res.push(startBoundElement);
}
if (endBoundElement) {
res.push(endBoundElement);
}
} else {
let excalidrawElement;
const { type, ...rest } = element;
if (element.type === "text") {
excalidrawElement = {
...element,
} as ExcalidrawTextElement;
} else if (type === "arrow" || type === "line") {
res.push(excalidrawElement);
} else if (element.type === "arrow" || element.type === "line") {
//@ts-ignore
const { start, end, type, endArrowHead, ...rest } = element;
excalidrawElement = {
type,
width: 200,
height: 24,
endArrowhead: element.type === "arrow" ? "arrow" : null,
points: [
[0, 0],
[200, 0],
],
endArrowhead: endArrowHead || type === "arrow" ? "arrow" : null,
...rest,
} as ExcalidrawLinearElement;
let startBoundElement;
let endBoundElement;
if (start) {
const width = start?.width ?? 100;
const height = start?.height ?? 100;
startBoundElement = newElement({
x: start.x || excalidrawElement.x - width,
y: start.y || excalidrawElement.y - height / 2,
width,
height,
...start,
}) as ExcalidrawBindableElement;
bindLinearElement(excalidrawElement, startBoundElement, "start");
}
if (end) {
const height = end?.height ?? 100;
endBoundElement = newElement({
x: end.x || excalidrawElement.x + excalidrawElement.width,
y: end.y || excalidrawElement.y - height / 2,
width: end?.width ?? 100,
height,
...end,
}) as ExcalidrawBindableElement;
bindLinearElement(excalidrawElement, endBoundElement, "end");
}
res.push(excalidrawElement);
if (startBoundElement) {
res.push(startBoundElement);
}
if (endBoundElement) {
res.push(endBoundElement);
}
} else {
excalidrawElement = {
...element,
@ -708,8 +796,8 @@ export const convertToExcalidrawElements = (
? 100
: 0),
} as ExcalidrawGenericElement;
res.push(excalidrawElement);
}
res.push(excalidrawElement);
}
});
return res;

8
src/element/textElement.ts
View file

@ -993,10 +993,8 @@ export const bindTextToContainer = (
let container;
if (containerProps.type === "arrow") {
container = newLinearElement({
//@ts-ignore
x: 0,
//@ts-ignore
y: 0,
width: containerProps.width || 300,
height: containerProps.height || 24,
//@ts-ignore
type: containerProps.type,
//@ts-ignore,
@ -1011,8 +1009,6 @@ export const bindTextToContainer = (
} else {
//@ts-ignore
container = newElement({
x: 0,
y: 0,
...containerProps,
});
}