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remotion/node_modules/@remotion/studio/dist/state/timeline-zoom.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.TimelineZoomContext = exports.TimelineZoomCtx = exports.TIMELINE_MAX_ZOOM = exports.TIMELINE_MIN_ZOOM = void 0;
+const jsx_runtime_1 = require("react/jsx-runtime");
+const react_1 = require("react");
+const imperative_state_1 = require("../components/Timeline/imperative-state");
+const timeline_scroll_logic_1 = require("../components/Timeline/timeline-scroll-logic");
+const ZoomPersistor_1 = require("../components/ZoomPersistor");
+exports.TIMELINE_MIN_ZOOM = 1;
+exports.TIMELINE_MAX_ZOOM = 5;
+exports.TimelineZoomCtx = (0, react_1.createContext)({
+    zoom: {},
+    setZoom: () => {
+        throw new Error('has no context');
+    },
+});
+const TimelineZoomContext = ({ children }) => {
+    const [zoom, setZoom] = (0, react_1.useState)(() => (0, ZoomPersistor_1.getZoomFromLocalStorage)());
+    const value = (0, react_1.useMemo)(() => {
+        return {
+            zoom,
+            setZoom: (compositionId, callback) => {
+                setZoom((prevZoomMap) => {
+                    var _a, _b;
+                    const newZoomWithFloatingPointErrors = Math.min(exports.TIMELINE_MAX_ZOOM, Math.max(exports.TIMELINE_MIN_ZOOM, callback((_a = prevZoomMap[compositionId]) !== null && _a !== void 0 ? _a : exports.TIMELINE_MIN_ZOOM)));
+                    const newZoom = Math.round(newZoomWithFloatingPointErrors * 10) / 10;
+                    (0, timeline_scroll_logic_1.zoomAndPreserveCursor)({
+                        oldZoom: (_b = prevZoomMap[compositionId]) !== null && _b !== void 0 ? _b : exports.TIMELINE_MIN_ZOOM,
+                        newZoom,
+                        currentDurationInFrames: (0, imperative_state_1.getCurrentDuration)(),
+                        currentFrame: (0, imperative_state_1.getCurrentFrame)(),
+                    });
+                    return { ...prevZoomMap, [compositionId]: newZoom };
+                });
+            },
+        };
+    }, [zoom]);
+    return ((0, jsx_runtime_1.jsx)(exports.TimelineZoomCtx.Provider, { value: value, children: children }));
+};
+exports.TimelineZoomContext = TimelineZoomContext;