1 line
8.5 KiB
JSON
1 line
8.5 KiB
JSON
{"ast":null,"code":"import * as eventUtil from './event.js';\n\nvar GestureMgr = function () {\n function GestureMgr() {\n this._track = [];\n }\n\n GestureMgr.prototype.recognize = function (event, target, root) {\n this._doTrack(event, target, root);\n\n return this._recognize(event);\n };\n\n GestureMgr.prototype.clear = function () {\n this._track.length = 0;\n return this;\n };\n\n GestureMgr.prototype._doTrack = function (event, target, root) {\n var touches = event.touches;\n\n if (!touches) {\n return;\n }\n\n var trackItem = {\n points: [],\n touches: [],\n target: target,\n event: event\n };\n\n for (var i = 0, len = touches.length; i < len; i++) {\n var touch = touches[i];\n var pos = eventUtil.clientToLocal(root, touch, {});\n trackItem.points.push([pos.zrX, pos.zrY]);\n trackItem.touches.push(touch);\n }\n\n this._track.push(trackItem);\n };\n\n GestureMgr.prototype._recognize = function (event) {\n for (var eventName in recognizers) {\n if 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center(pinchEnd);\n event.pinchX = pinchCenter[0];\n event.pinchY = pinchCenter[1];\n return {\n type: 'pinch',\n target: tracks[0].target,\n event: event\n };\n }\n 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* as eventUtil from './event.js';\nvar GestureMgr = (function () {\n function GestureMgr() {\n this._track = [];\n }\n GestureMgr.prototype.recognize = function (event, target, root) {\n this._doTrack(event, target, root);\n return this._recognize(event);\n };\n GestureMgr.prototype.clear = function () {\n this._track.length = 0;\n return this;\n };\n GestureMgr.prototype._doTrack = function (event, target, root) {\n var touches = event.touches;\n if (!touches) {\n return;\n }\n var trackItem = {\n points: [],\n touches: [],\n target: target,\n event: event\n };\n for (var i = 0, len = touches.length; i < len; i++) {\n var touch = touches[i];\n var pos = eventUtil.clientToLocal(root, touch, {});\n trackItem.points.push([pos.zrX, pos.zrY]);\n trackItem.touches.push(touch);\n }\n this._track.push(trackItem);\n };\n GestureMgr.prototype._recognize = function (event) {\n for (var eventName in recognizers) {\n if (recognizers.hasOwnProperty(eventName)) {\n var gestureInfo = recognizers[eventName](this._track, event);\n if (gestureInfo) {\n return gestureInfo;\n }\n }\n }\n };\n return GestureMgr;\n}());\nexport { GestureMgr };\nfunction dist(pointPair) {\n var dx = pointPair[1][0] - pointPair[0][0];\n var dy = pointPair[1][1] - pointPair[0][1];\n return Math.sqrt(dx * dx + dy * dy);\n}\nfunction center(pointPair) {\n return [\n (pointPair[0][0] + pointPair[1][0]) / 2,\n (pointPair[0][1] + pointPair[1][1]) / 2\n ];\n}\nvar recognizers = {\n pinch: function (tracks, event) {\n var trackLen = tracks.length;\n if (!trackLen) {\n return;\n }\n var pinchEnd = (tracks[trackLen - 1] || {}).points;\n var pinchPre = (tracks[trackLen - 2] || {}).points || pinchEnd;\n if (pinchPre\n && pinchPre.length > 1\n && pinchEnd\n && pinchEnd.length > 1) {\n var pinchScale = dist(pinchEnd) / dist(pinchPre);\n !isFinite(pinchScale) && (pinchScale = 1);\n event.pinchScale = pinchScale;\n var pinchCenter = center(pinchEnd);\n event.pinchX = pinchCenter[0];\n event.pinchY = pinchCenter[1];\n return {\n type: 'pinch',\n target: tracks[0].target,\n event: event\n };\n }\n }\n};\n"]},"metadata":{},"sourceType":"module"} |