cione-comp-lib/es/node_modules/echarts/lib/component/helper/RoamController.mjs

`$ yarn add cione-comp-lib` 或者 `$ npm i cione-comp-lib -S`

import { __extends } from "../../../../tslib/tslib.es6.mjs";
import Eventful from "../../../../zrender/lib/core/Eventful.mjs";
import { isMiddleOrRightButtonOnMouseUpDown, stop } from "../../../../zrender/lib/core/event.mjs";
import { isTaken } from "./interactionMutex.mjs";
import { bind, defaults, clone, isString } from "../../../../zrender/lib/core/util.mjs";
var RoamController = function(_super) {
  __extends(RoamController2, _super);
  function RoamController2(zr) {
    var _this = _super.call(this) || this;
    _this._zr = zr;
    var mousedownHandler = bind(_this._mousedownHandler, _this);
    var mousemoveHandler = bind(_this._mousemoveHandler, _this);
    var mouseupHandler = bind(_this._mouseupHandler, _this);
    var mousewheelHandler = bind(_this._mousewheelHandler, _this);
    var pinchHandler = bind(_this._pinchHandler, _this);
    _this.enable = function(controlType, opt) {
      this.disable();
      this._opt = defaults(clone(opt) || {}, {
        zoomOnMouseWheel: true,
        moveOnMouseMove: true,
        moveOnMouseWheel: false,
        preventDefaultMouseMove: true
      });
      if (controlType == null) {
        controlType = true;
      }
      if (controlType === true || controlType === "move" || controlType === "pan") {
        zr.on("mousedown", mousedownHandler);
        zr.on("mousemove", mousemoveHandler);
        zr.on("mouseup", mouseupHandler);
      }
      if (controlType === true || controlType === "scale" || controlType === "zoom") {
        zr.on("mousewheel", mousewheelHandler);
        zr.on("pinch", pinchHandler);
      }
    };
    _this.disable = function() {
      zr.off("mousedown", mousedownHandler);
      zr.off("mousemove", mousemoveHandler);
      zr.off("mouseup", mouseupHandler);
      zr.off("mousewheel", mousewheelHandler);
      zr.off("pinch", pinchHandler);
    };
    return _this;
  }
  RoamController2.prototype.isDragging = function() {
    return this._dragging;
  };
  RoamController2.prototype.isPinching = function() {
    return this._pinching;
  };
  RoamController2.prototype.setPointerChecker = function(pointerChecker) {
    this.pointerChecker = pointerChecker;
  };
  RoamController2.prototype.dispose = function() {
    this.disable();
  };
  RoamController2.prototype._mousedownHandler = function(e) {
    if (isMiddleOrRightButtonOnMouseUpDown(e)) {
      return;
    }
    var el = e.target;
    while (el) {
      if (el.draggable) {
        return;
      }
      el = el.__hostTarget || el.parent;
    }
    var x = e.offsetX;
    var y = e.offsetY;
    if (this.pointerChecker && this.pointerChecker(e, x, y)) {
      this._x = x;
      this._y = y;
      this._dragging = true;
    }
  };
  RoamController2.prototype._mousemoveHandler = function(e) {
    if (!this._dragging || !isAvailableBehavior("moveOnMouseMove", e, this._opt) || e.gestureEvent === "pinch" || isTaken(this._zr, "globalPan")) {
      return;
    }
    var x = e.offsetX;
    var y = e.offsetY;
    var oldX = this._x;
    var oldY = this._y;
    var dx = x - oldX;
    var dy = y - oldY;
    this._x = x;
    this._y = y;
    this._opt.preventDefaultMouseMove && stop(e.event);
    trigger(this, "pan", "moveOnMouseMove", e, {
      dx,
      dy,
      oldX,
      oldY,
      newX: x,
      newY: y,
      isAvailableBehavior: null
    });
  };
  RoamController2.prototype._mouseupHandler = function(e) {
    if (!isMiddleOrRightButtonOnMouseUpDown(e)) {
      this._dragging = false;
    }
  };
  RoamController2.prototype._mousewheelHandler = function(e) {
    var shouldZoom = isAvailableBehavior("zoomOnMouseWheel", e, this._opt);
    var shouldMove = isAvailableBehavior("moveOnMouseWheel", e, this._opt);
    var wheelDelta = e.wheelDelta;
    var absWheelDeltaDelta = Math.abs(wheelDelta);
    var originX = e.offsetX;
    var originY = e.offsetY;
    if (wheelDelta === 0 || !shouldZoom && !shouldMove) {
      return;
    }
    if (shouldZoom) {
      var factor = absWheelDeltaDelta > 3 ? 1.4 : absWheelDeltaDelta > 1 ? 1.2 : 1.1;
      var scale = wheelDelta > 0 ? factor : 1 / factor;
      checkPointerAndTrigger(this, "zoom", "zoomOnMouseWheel", e, {
        scale,
        originX,
        originY,
        isAvailableBehavior: null
      });
    }
    if (shouldMove) {
      var absDelta = Math.abs(wheelDelta);
      var scrollDelta = (wheelDelta > 0 ? 1 : -1) * (absDelta > 3 ? 0.4 : absDelta > 1 ? 0.15 : 0.05);
      checkPointerAndTrigger(this, "scrollMove", "moveOnMouseWheel", e, {
        scrollDelta,
        originX,
        originY,
        isAvailableBehavior: null
      });
    }
  };
  RoamController2.prototype._pinchHandler = function(e) {
    if (isTaken(this._zr, "globalPan")) {
      return;
    }
    var scale = e.pinchScale > 1 ? 1.1 : 1 / 1.1;
    checkPointerAndTrigger(this, "zoom", null, e, {
      scale,
      originX: e.pinchX,
      originY: e.pinchY,
      isAvailableBehavior: null
    });
  };
  return RoamController2;
}(Eventful);
function checkPointerAndTrigger(controller, eventName, behaviorToCheck, e, contollerEvent) {
  if (controller.pointerChecker && controller.pointerChecker(e, contollerEvent.originX, contollerEvent.originY)) {
    stop(e.event);
    trigger(controller, eventName, behaviorToCheck, e, contollerEvent);
  }
}
function trigger(controller, eventName, behaviorToCheck, e, contollerEvent) {
  contollerEvent.isAvailableBehavior = bind(isAvailableBehavior, null, behaviorToCheck, e);
  controller.trigger(eventName, contollerEvent);
}
function isAvailableBehavior(behaviorToCheck, e, settings) {
  var setting = settings[behaviorToCheck];
  return !behaviorToCheck || setting && (!isString(setting) || e.event[setting + "Key"]);
}
var RoamController$1 = RoamController;
export { RoamController$1 as default };