1 | "use strict";
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2 |
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3 | exports.__esModule = true;
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4 | exports.default = useAnimationFrame;
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5 |
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6 | var _react = require("react");
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7 |
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8 | var _useMounted = _interopRequireDefault(require("./useMounted"));
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9 |
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10 | var _useStableMemo = _interopRequireDefault(require("./useStableMemo"));
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11 |
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12 | var _useWillUnmount = _interopRequireDefault(require("./useWillUnmount"));
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14 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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41 | function useAnimationFrame() {
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42 | var isMounted = (0, _useMounted.default)();
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43 | var handle = (0, _react.useRef)();
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44 |
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45 | var cancel = function cancel() {
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46 | if (handle.current != null) {
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47 | cancelAnimationFrame(handle.current);
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48 | }
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49 | };
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50 |
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51 | (0, _useWillUnmount.default)(cancel);
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52 | return (0, _useStableMemo.default)(function () {
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53 | return {
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54 | request: function request(cancelPrevious, fn) {
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55 | if (!isMounted()) return;
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56 | if (cancelPrevious) cancel();
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57 | handle.current = requestAnimationFrame(fn || cancelPrevious);
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58 | },
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59 | cancel: cancel
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60 | };
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61 | }, []);
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62 | } |
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