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18 KiB
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1 line
18 KiB
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{"ast":null,"code":"import _objectSpread from \"/Users/apple/Documents/cursor/Web\\u8BFE\\u4EF6/AI\\u8BFE/education_web_\\u591AAgent\\u534F\\u4F5C\\u7CFB\\u7EDF/node_modules/@babel/runtime/helpers/esm/objectSpread2.js\";\nimport { frame, isPrimaryPointer, cancelFrame, frameData } from 'motion-dom';\nimport { pipe, secondsToMilliseconds, millisecondsToSeconds } from 'motion-utils';\nimport { addPointerEvent } from '../../events/add-pointer-event.mjs';\nimport { extractEventInfo } from '../../events/event-info.mjs';\nimport { distance2D } from '../../utils/distance.mjs';\n\n/**\n * @internal\n */\nclass PanSession {\n constructor(event, handlers) {\n let {\n transformPagePoint,\n contextWindow,\n dragSnapToOrigin = false\n } = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n /**\n * @internal\n */\n this.startEvent = null;\n /**\n * @internal\n */\n this.lastMoveEvent = null;\n /**\n * @internal\n */\n this.lastMoveEventInfo = null;\n /**\n * @internal\n */\n this.handlers = {};\n /**\n * @internal\n */\n this.contextWindow = window;\n this.updatePoint = () => {\n if (!(this.lastMoveEvent && this.lastMoveEventInfo)) return;\n const info = getPanInfo(this.lastMoveEventInfo, this.history);\n const isPanStarted = this.startEvent !== null;\n // Only start panning if the offset is larger than 3 pixels. If we make it\n // any larger than this we'll want to reset the pointer history\n // on the first update to avoid visual snapping to the cursoe.\n const isDistancePastThreshold = distance2D(info.offset, {\n x: 0,\n y: 0\n }) >= 3;\n if (!isPanStarted && !isDistancePastThreshold) return;\n const {\n point\n } = info;\n const {\n timestamp\n } = frameData;\n this.history.push(_objectSpread(_objectSpread({}, point), {}, {\n timestamp\n }));\n const {\n onStart,\n onMove\n } = this.handlers;\n if (!isPanStarted) {\n onStart && onStart(this.lastMoveEvent, info);\n this.startEvent = this.lastMoveEvent;\n }\n onMove && onMove(this.lastMoveEvent, info);\n };\n this.handlePointerMove = (event, info) => {\n this.lastMoveEvent = event;\n this.lastMoveEventInfo = transformPoint(info, this.transformPagePoint);\n // Throttle mouse move event to once per frame\n frame.update(this.updatePoint, true);\n };\n this.handlePointerUp = (event, info) => {\n this.end();\n const {\n onEnd,\n onSessionEnd,\n resumeAnimation\n } = this.handlers;\n if (this.dragSnapToOrigin) resumeAnimation && resumeAnimation();\n if (!(this.lastMoveEvent && this.lastMoveEventInfo)) return;\n const panInfo = getPanInfo(event.type === \"pointercancel\" ? this.lastMoveEventInfo : transformPoint(info, this.transformPagePoint), this.history);\n if (this.startEvent && onEnd) {\n onEnd(event, panInfo);\n }\n onSessionEnd && onSessionEnd(event, panInfo);\n };\n // If we have more than one touch, don't start detecting this gesture\n if (!isPrimaryPointer(event)) return;\n this.dragSnapToOrigin = dragSnapToOrigin;\n this.handlers = handlers;\n this.transformPagePoint = transformPagePoint;\n this.contextWindow = contextWindow || window;\n const info = extractEventInfo(event);\n const initialInfo = transformPoint(info, this.transformPagePoint);\n const {\n point\n } = initialInfo;\n const {\n timestamp\n } = frameData;\n this.history = [_objectSpread(_objectSpread({}, point), {}, {\n timestamp\n })];\n const {\n onSessionStart\n } = handlers;\n onSessionStart && onSessionStart(event, getPanInfo(initialInfo, this.history));\n this.removeListeners = pipe(addPointerEvent(this.contextWindow, \"pointermove\", this.handlePointerMove), addPointerEvent(this.contextWindow, \"pointerup\", this.handlePointerUp), addPointerEvent(this.conte
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