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141 changes: 141 additions & 0 deletions
141
packages/core/components/Puck/components/Canvas/index.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| import { getBox } from "css-box-model"; | ||
| import { | ||
| ReactNode, | ||
| useCallback, | ||
| useEffect, | ||
| useMemo, | ||
| useRef, | ||
| useState, | ||
| } from "react"; | ||
| import { useAppContext } from "../../context"; | ||
| import { ViewportControls } from "../../../ViewportControls"; | ||
| import styles from "../../styles.module.css"; | ||
| import { getClassNameFactory } from "../../../../lib"; | ||
| import { Preview } from "../Preview"; | ||
|
|
||
| const getClassName = getClassNameFactory("Puck", styles); | ||
|
|
||
| export const Canvas = () => { | ||
| const { dispatch, state, overrides } = useAppContext(); | ||
| const { ui } = state; | ||
| const frameRef = useRef<HTMLDivElement>(null); | ||
|
|
||
| const [rootHeight, setRootHeight] = useState(0); | ||
| const [autoZoom, setAutoZoom] = useState(1); | ||
|
|
||
| const defaultRender = useMemo< | ||
| React.FunctionComponent<{ children?: ReactNode }> | ||
| >(() => { | ||
| const PuckDefault = ({ children }: { children?: ReactNode }) => ( | ||
| <>{children}</> | ||
| ); | ||
|
|
||
| return PuckDefault; | ||
| }, []); | ||
|
|
||
| const CustomPreview = useMemo( | ||
| () => overrides.preview || defaultRender, | ||
| [overrides] | ||
| ); | ||
|
|
||
| // TODO deal with window resize | ||
| const resetAutoZoom = useCallback(() => { | ||
| if (frameRef.current) { | ||
| const frame = frameRef.current; | ||
|
|
||
| const box = getBox(frame); | ||
| const frameWidth = box.contentBox.width; | ||
| const frameHeight = box.contentBox.height; | ||
|
|
||
| const viewportHeight = | ||
| ui.viewport.height === "auto" ? frameHeight : ui.viewport.height; | ||
|
|
||
| if (ui.viewport.width > frameWidth || viewportHeight > frameHeight) { | ||
| const widthZoom = Math.min(frameWidth / ui.viewport.width, 1); | ||
| const heightZoom = Math.min(frameHeight / viewportHeight, 1); | ||
|
|
||
| let zoom = widthZoom; | ||
|
|
||
| if (widthZoom < heightZoom) { | ||
| setRootHeight(viewportHeight / zoom); | ||
| } else { | ||
| setRootHeight(viewportHeight); | ||
| zoom = heightZoom; | ||
| } | ||
|
|
||
| setAutoZoom(zoom); | ||
|
|
||
| dispatch({ | ||
| type: "setUi", | ||
| ui: { | ||
| ...ui, | ||
| viewport: { | ||
| ...ui.viewport, | ||
| zoom, | ||
| }, | ||
| }, | ||
| }); | ||
| } else { | ||
| setAutoZoom(1); | ||
|
|
||
| if (ui.viewport.zoom === autoZoom) { | ||
| setRootHeight(viewportHeight); | ||
|
|
||
| dispatch({ | ||
| type: "setUi", | ||
| ui: { | ||
| ...ui, | ||
| viewport: { | ||
| ...ui.viewport, | ||
| zoom: 1, | ||
| }, | ||
| }, | ||
| }); | ||
| } else { | ||
| setRootHeight(viewportHeight / ui.viewport.zoom); | ||
| } | ||
| } | ||
| } | ||
| }, [frameRef, ui.leftSideBarVisible, ui, autoZoom]); | ||
|
|
||
| // Auto zoom | ||
| useEffect(() => { | ||
| resetAutoZoom(); | ||
| }, [ | ||
| frameRef, | ||
| ui.leftSideBarVisible, | ||
| ui.rightSideBarVisible, | ||
| ui.viewport.width, | ||
| ]); | ||
|
|
||
| return ( | ||
| <div | ||
| className={getClassName("canvas")} | ||
| onClick={() => | ||
| dispatch({ | ||
| type: "setUi", | ||
| ui: { itemSelector: null }, | ||
| recordHistory: true, | ||
| }) | ||
| } | ||
| > | ||
| <div className={getClassName("canvasControls")}> | ||
| <ViewportControls autoZoom={autoZoom} /> | ||
| </div> | ||
| <div className={getClassName("frame")} ref={frameRef}> | ||
| <div | ||
| className={getClassName("root")} | ||
| style={{ | ||
| width: ui.viewport.width, | ||
| height: rootHeight, | ||
| transform: `scale(${ui.viewport.zoom})`, | ||
| }} | ||
| > | ||
| <CustomPreview> | ||
| <Preview /> | ||
| </CustomPreview> | ||
| </div> | ||
| </div> | ||
| </div> | ||
| ); | ||
| }; |
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