swOperation/node_modules/@antv/g-plugin-dragndrop/dist/index.umd.js

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@antv/g-lite')) :
  typeof define === 'function' && define.amd ? define(['exports', '@antv/g-lite'], factory) :
  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.G = global.G || {}, global.G.Dragndrop = {}), global.window.G));
}(this, (function (exports, gLite) { 'use strict';

  function _regeneratorRuntime() {
    _regeneratorRuntime = function () {
      return exports;
    };
    var exports = {},
      Op = Object.prototype,
      hasOwn = Op.hasOwnProperty,
      defineProperty = Object.defineProperty || function (obj, key, desc) {
        obj[key] = desc.value;
      },
      $Symbol = "function" == typeof Symbol ? Symbol : {},
      iteratorSymbol = $Symbol.iterator || "@@iterator",
      asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator",
      toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
    function define(obj, key, value) {
      return Object.defineProperty(obj, key, {
        value: value,
        enumerable: !0,
        configurable: !0,
        writable: !0
      }), obj[key];
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    try {
      define({}, "");
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      define = function (obj, key, value) {
        return obj[key] = value;
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    }
    function wrap(innerFn, outerFn, self, tryLocsList) {
      var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator,
        generator = Object.create(protoGenerator.prototype),
        context = new Context(tryLocsList || []);
      return defineProperty(generator, "_invoke", {
        value: makeInvokeMethod(innerFn, self, context)
      }), generator;
    }
    function tryCatch(fn, obj, arg) {
      try {
        return {
          type: "normal",
          arg: fn.call(obj, arg)
        };
      } catch (err) {
        return {
          type: "throw",
          arg: err
        };
      }
    }
    exports.wrap = wrap;
    var ContinueSentinel = {};
    function Generator() {}
    function GeneratorFunction() {}
    function GeneratorFunctionPrototype() {}
    var IteratorPrototype = {};
    define(IteratorPrototype, iteratorSymbol, function () {
      return this;
    });
    var getProto = Object.getPrototypeOf,
      NativeIteratorPrototype = getProto && getProto(getProto(values([])));
    NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol) && (IteratorPrototype = NativeIteratorPrototype);
    var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
    function defineIteratorMethods(prototype) {
      ["next", "throw", "return"].forEach(function (method) {
        define(prototype, method, function (arg) {
          return this._invoke(method, arg);
        });
      });
    }
    function AsyncIterator(generator, PromiseImpl) {
      function invoke(method, arg, resolve, reject) {
        var record = tryCatch(generator[method], generator, arg);
        if ("throw" !== record.type) {
          var result = record.arg,
            value = result.value;
          return value && "object" == typeof value && hasOwn.call(value, "__await") ? PromiseImpl.resolve(value.__await).then(function (value) {
            invoke("next", value, resolve, reject);
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            invoke("throw", err, resolve, reject);
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            result.value = unwrapped, resolve(result);
          }, function (error) {
            return invoke("throw", error, resolve, reject);
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        reject(record.arg);
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      var previousPromise;
      defineProperty(this, "_invoke", {
        value: function (method, arg) {
          function callInvokeWithMethodAndArg() {
            return new PromiseImpl(function (resolve, reject) {
              invoke(method, arg, resolve, reject);
            });
          }
          return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
        }
      });
    }
    function makeInvokeMethod(innerFn, self, context) {
      var state = "suspendedStart";
      return function (method, arg) {
        if ("executing" === state) throw new Error("Generator is already running");
        if ("completed" === state) {
          if ("throw" === method) throw arg;
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              return delegateResult;
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          }
          if ("next" === context.method) context.sent = context._sent = context.arg;else if ("throw" === context.method) {
            if ("suspendedStart" === state) throw state = "completed", context.arg;
            context.dispatchException(context.arg);
          } else "return" === context.method && context.abrupt("return", context.arg);
          state = "executing";
          var record = tryCatch(innerFn, self, context);
          if ("normal" === record.type) {
            if (state = context.done ? "completed" : "suspendedYield", record.arg === ContinueSentinel) continue;
            return {
              value: record.arg,
              done: context.done
            };
          }
          "throw" === record.type && (state = "completed", context.method = "throw", context.arg = record.arg);
        }
      };
    }
    function maybeInvokeDelegate(delegate, context) {
      var methodName = context.method,
        method = delegate.iterator[methodName];
      if (undefined === method) return context.delegate = null, "throw" === methodName && delegate.iterator.return && (context.method = "return", context.arg = undefined, maybeInvokeDelegate(delegate, context), "throw" === context.method) || "return" !== methodName && (context.method = "throw", context.arg = new TypeError("The iterator does not provide a '" + methodName + "' method")), ContinueSentinel;
      var record = tryCatch(method, delegate.iterator, context.arg);
      if ("throw" === record.type) return context.method = "throw", context.arg = record.arg, context.delegate = null, ContinueSentinel;
      var info = record.arg;
      return info ? info.done ? (context[delegate.resultName] = info.value, context.next = delegate.nextLoc, "return" !== context.method && (context.method = "next", context.arg = undefined), context.delegate = null, ContinueSentinel) : info : (context.method = "throw", context.arg = new TypeError("iterator result is not an object"), context.delegate = null, ContinueSentinel);
    }
    function pushTryEntry(locs) {
      var entry = {
        tryLoc: locs[0]
      };
      1 in locs && (entry.catchLoc = locs[1]), 2 in locs && (entry.finallyLoc = locs[2], entry.afterLoc = locs[3]), this.tryEntries.push(entry);
    }
    function resetTryEntry(entry) {
      var record = entry.completion || {};
      record.type = "normal", delete record.arg, entry.completion = record;
    }
    function Context(tryLocsList) {
      this.tryEntries = [{
        tryLoc: "root"
      }], tryLocsList.forEach(pushTryEntry, this), this.reset(!0);
    }
    function values(iterable) {
      if (iterable) {
        var iteratorMethod = iterable[iteratorSymbol];
        if (iteratorMethod) return iteratorMethod.call(iterable);
        if ("function" == typeof iterable.next) return iterable;
        if (!isNaN(iterable.length)) {
          var i = -1,
            next = function next() {
              for (; ++i < iterable.length;) if (hasOwn.call(iterable, i)) return next.value = iterable[i], next.done = !1, next;
              return next.value = undefined, next.done = !0, next;
            };
          return next.next = next;
        }
      }
      return {
        next: doneResult
      };
    }
    function doneResult() {
      return {
        value: undefined,
        done: !0
      };
    }
    return GeneratorFunction.prototype = GeneratorFunctionPrototype, defineProperty(Gp, "constructor", {
      value: GeneratorFunctionPrototype,
      configurable: !0
    }), defineProperty(GeneratorFunctionPrototype, "constructor", {
      value: GeneratorFunction,
      configurable: !0
    }), GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction"), exports.isGeneratorFunction = function (genFun) {
      var ctor = "function" == typeof genFun && genFun.constructor;
      return !!ctor && (ctor === GeneratorFunction || "GeneratorFunction" === (ctor.displayName || ctor.name));
    }, exports.mark = function (genFun) {
      return Object.setPrototypeOf ? Object.setPrototypeOf(genFun, GeneratorFunctionPrototype) : (genFun.__proto__ = GeneratorFunctionPrototype, define(genFun, toStringTagSymbol, "GeneratorFunction")), genFun.prototype = Object.create(Gp), genFun;
    }, exports.awrap = function (arg) {
      return {
        __await: arg
      };
    }, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, asyncIteratorSymbol, function () {
      return this;
    }), exports.AsyncIterator = AsyncIterator, exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) {
      void 0 === PromiseImpl && (PromiseImpl = Promise);
      var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
      return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
        return result.done ? result.value : iter.next();
      });
    }, defineIteratorMethods(Gp), define(Gp, toStringTagSymbol, "Generator"), define(Gp, iteratorSymbol, function () {
      return this;
    }), define(Gp, "toString", function () {
      return "[object Generator]";
    }), exports.keys = function (val) {
      var object = Object(val),
        keys = [];
      for (var key in object) keys.push(key);
      return keys.reverse(), function next() {
        for (; keys.length;) {
          var key = keys.pop();
          if (key in object) return next.value = key, next.done = !1, next;
        }
        return next.done = !0, next;
      };
    }, exports.values = values, Context.prototype = {
      constructor: Context,
      reset: function (skipTempReset) {
        if (this.prev = 0, this.next = 0, this.sent = this._sent = undefined, this.done = !1, this.delegate = null, this.method = "next", this.arg = undefined, this.tryEntries.forEach(resetTryEntry), !skipTempReset) for (var name in this) "t" === name.charAt(0) && hasOwn.call(this, name) && !isNaN(+name.slice(1)) && (this[name] = undefined);
      },
      stop: function () {
        this.done = !0;
        var rootRecord = this.tryEntries[0].completion;
        if ("throw" === rootRecord.type) throw rootRecord.arg;
        return this.rval;
      },
      dispatchException: function (exception) {
        if (this.done) throw exception;
        var context = this;
        function handle(loc, caught) {
          return record.type = "throw", record.arg = exception, context.next = loc, caught && (context.method = "next", context.arg = undefined), !!caught;
        }
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i],
            record = entry.completion;
          if ("root" === entry.tryLoc) return handle("end");
          if (entry.tryLoc <= this.prev) {
            var hasCatch = hasOwn.call(entry, "catchLoc"),
              hasFinally = hasOwn.call(entry, "finallyLoc");
            if (hasCatch && hasFinally) {
              if (this.prev < entry.catchLoc) return handle(entry.catchLoc, !0);
              if (this.prev < entry.finallyLoc) return handle(entry.finallyLoc);
            } else if (hasCatch) {
              if (this.prev < entry.catchLoc) return handle(entry.catchLoc, !0);
            } else {
              if (!hasFinally) throw new Error("try statement without catch or finally");
              if (this.prev < entry.finallyLoc) return handle(entry.finallyLoc);
            }
          }
        }
      },
      abrupt: function (type, arg) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
            var finallyEntry = entry;
            break;
          }
        }
        finallyEntry && ("break" === type || "continue" === type) && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc && (finallyEntry = null);
        var record = finallyEntry ? finallyEntry.completion : {};
        return record.type = type, record.arg = arg, finallyEntry ? (this.method = "next", this.next = finallyEntry.finallyLoc, ContinueSentinel) : this.complete(record);
      },
      complete: function (record, afterLoc) {
        if ("throw" === record.type) throw record.arg;
        return "break" === record.type || "continue" === record.type ? this.next = record.arg : "return" === record.type ? (this.rval = this.arg = record.arg, this.method = "return", this.next = "end") : "normal" === record.type && afterLoc && (this.next = afterLoc), ContinueSentinel;
      },
      finish: function (finallyLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          if (entry.finallyLoc === finallyLoc) return this.complete(entry.completion, entry.afterLoc), resetTryEntry(entry), ContinueSentinel;
        }
      },
      catch: function (tryLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          if (entry.tryLoc === tryLoc) {
            var record = entry.completion;
            if ("throw" === record.type) {
              var thrown = record.arg;
              resetTryEntry(entry);
            }
            return thrown;
          }
        }
        throw new Error("illegal catch attempt");
      },
      delegateYield: function (iterable, resultName, nextLoc) {
        return this.delegate = {
          iterator: values(iterable),
          resultName: resultName,
          nextLoc: nextLoc
        }, "next" === this.method && (this.arg = undefined), ContinueSentinel;
      }
    }, exports;
  }
  function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
    try {
      var info = gen[key](arg);
      var value = info.value;
    } catch (error) {
      reject(error);
      return;
    }
    if (info.done) {
      resolve(value);
    } else {
      Promise.resolve(value).then(_next, _throw);
    }
  }
  function _asyncToGenerator(fn) {
    return function () {
      var self = this,
        args = arguments;
      return new Promise(function (resolve, reject) {
        var gen = fn.apply(self, args);
        function _next(value) {
          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
        }
        function _throw(err) {
          asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
        }
        _next(undefined);
      });
    };
  }
  function _extends() {
    _extends = Object.assign ? Object.assign.bind() : function (target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];
        for (var key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }
      return target;
    };
    return _extends.apply(this, arguments);
  }
  function _inheritsLoose(subClass, superClass) {
    subClass.prototype = Object.create(superClass.prototype);
    subClass.prototype.constructor = subClass;
    _setPrototypeOf(subClass, superClass);
  }
  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };
    return _setPrototypeOf(o, p);
  }

  function distanceSquareRoot(a, b) {
      return Math.sqrt((a[0] - b[0]) * (a[0] - b[0]) + (a[1] - b[1]) * (a[1] - b[1]));
  }

  var DragndropPlugin = /*#__PURE__*/function () {
    function DragndropPlugin(dragndropPluginOptions) {
      this.dragndropPluginOptions = void 0;
      this.dragndropPluginOptions = dragndropPluginOptions;
    }
    var _proto = DragndropPlugin.prototype;
    _proto.apply = function apply(context) {
      var _this = this;
      var renderingService = context.renderingService,
        renderingContext = context.renderingContext;
      var document = renderingContext.root.ownerDocument;
      // TODO: should we add an option like `draggable` to Canvas
      var canvas = document.defaultView;
      var handlePointerdown = function handlePointerdown(event) {
        var target = event.target;
        var isDocument = target === document;
        var draggableEventTarget = isDocument && _this.dragndropPluginOptions.isDocumentDraggable ? document : target.closest && target.closest('[draggable=true]');
        // `draggable` may be set on ancestor nodes:
        // @see https://github.com/antvis/G/issues/1088
        if (draggableEventTarget) {
          // delay triggering dragstart event
          var dragstartTriggered = false;
          var dragstartTimeStamp = event.timeStamp;
          var dragstartClientCoordinates = [event.clientX, event.clientY];
          var currentDroppable = null;
          var lastDragClientCoordinates = [event.clientX, event.clientY];
          // @ts-ignore
          // eslint-disable-next-line no-inner-declarations
          var handlePointermove = /*#__PURE__*/function () {
            var _ref = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime().mark(function _callee(event) {
              var timeElapsed, distanceMoved, point, elementsBelow, elementBelow, droppableBelow;
              return _regeneratorRuntime().wrap(function _callee$(_context) {
                while (1) switch (_context.prev = _context.next) {
                  case 0:
                    if (dragstartTriggered) {
                      _context.next = 8;
                      break;
                    }
                    timeElapsed = event.timeStamp - dragstartTimeStamp;
                    distanceMoved = distanceSquareRoot([event.clientX, event.clientY], dragstartClientCoordinates); // check thresholds
                    if (!(timeElapsed <= _this.dragndropPluginOptions.dragstartTimeThreshold || distanceMoved <= _this.dragndropPluginOptions.dragstartDistanceThreshold)) {
                      _context.next = 5;
                      break;
                    }
                    return _context.abrupt("return");
                  case 5:
                    // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/dragstart_event
                    event.type = 'dragstart';
                    draggableEventTarget.dispatchEvent(event);
                    dragstartTriggered = true;
                  case 8:
                    // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/drag_event
                    event.type = 'drag';
                    // @ts-ignore
                    event.dx = event.clientX - lastDragClientCoordinates[0];
                    // @ts-ignore
                    event.dy = event.clientY - lastDragClientCoordinates[1];
                    draggableEventTarget.dispatchEvent(event);
                    lastDragClientCoordinates = [event.clientX, event.clientY];
                    if (isDocument) {
                      _context.next = 21;
                      break;
                    }
                    point = _this.dragndropPluginOptions.overlap === 'pointer' ? [event.canvasX, event.canvasY] : target.getBounds().center;
                    _context.next = 17;
                    return document.elementsFromPoint(point[0], point[1]);
                  case 17:
                    elementsBelow = _context.sent;
                    // prevent from picking the dragging element
                    elementBelow = elementsBelow[elementsBelow.indexOf(target) + 1];
                    droppableBelow = (elementBelow === null || elementBelow === void 0 ? void 0 : elementBelow.closest('[droppable=true]')) || (_this.dragndropPluginOptions.isDocumentDroppable ? document : null);
                    if (currentDroppable !== droppableBelow) {
                      if (currentDroppable) {
                        // null when we were not over a droppable before this event
                        // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/dragleave_event
                        event.type = 'dragleave';
                        event.target = currentDroppable;
                        currentDroppable.dispatchEvent(event);
                      }
                      if (droppableBelow) {
                        // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/dragleave_event
                        event.type = 'dragenter';
                        event.target = droppableBelow;
                        droppableBelow.dispatchEvent(event);
                      }
                      currentDroppable = droppableBelow;
                      if (currentDroppable) {
                        // null if we're not coming over a droppable now
                        // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/dragover_event
                        event.type = 'dragover';
                        event.target = currentDroppable;
                        currentDroppable.dispatchEvent(event);
                      }
                    }
                  case 21:
                  case "end":
                    return _context.stop();
                }
              }, _callee);
            }));
            return function handlePointermove(_x) {
              return _ref.apply(this, arguments);
            };
          }();
          canvas.addEventListener('pointermove', handlePointermove);
          var stopDragging = function stopDragging(originalPointerUpEvent) {
            if (dragstartTriggered) {
              // prevent click event being triggerd
              // @see https://github.com/antvis/G/issues/1091
              originalPointerUpEvent.detail = {
                preventClick: true
              };
              // clone event first
              var _event = originalPointerUpEvent.clone();
              // drop should fire before dragend
              // @see https://javascript.tutorialink.com/is-there-a-defined-ordering-between-dragend-and-drop-events/
              if (currentDroppable) {
                // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/drop_event
                _event.type = 'drop';
                _event.target = currentDroppable;
                currentDroppable.dispatchEvent(_event);
              }
              // @see https://developer.mozilla.org/zh-CN/docs/Web/API/Document/dragend_event
              _event.type = 'dragend';
              draggableEventTarget.dispatchEvent(_event);
              dragstartTriggered = false;
            }
            canvas.removeEventListener('pointermove', handlePointermove);
          };
          target.addEventListener('pointerup', stopDragging, {
            once: true
          });
          target.addEventListener('pointerupoutside', stopDragging, {
            once: true
          });
        }
      };
      renderingService.hooks.init.tap(DragndropPlugin.tag, function () {
        canvas.addEventListener('pointerdown', handlePointerdown);
      });
      renderingService.hooks.destroy.tap(DragndropPlugin.tag, function () {
        canvas.removeEventListener('pointerdown', handlePointerdown);
      });
    };
    return DragndropPlugin;
  }();
  DragndropPlugin.tag = 'Dragndrop';

  var Plugin = /*#__PURE__*/function (_AbstractRendererPlug) {
    _inheritsLoose(Plugin, _AbstractRendererPlug);
    function Plugin(options) {
      var _this;
      if (options === void 0) {
        options = {};
      }
      _this = _AbstractRendererPlug.call(this) || this;
      _this.options = void 0;
      _this.name = 'dragndrop';
      _this.options = options;
      return _this;
    }
    var _proto = Plugin.prototype;
    _proto.init = function init() {
      this.addRenderingPlugin(new DragndropPlugin(_extends({
        overlap: 'pointer',
        isDocumentDraggable: false,
        isDocumentDroppable: false,
        dragstartDistanceThreshold: 0,
        dragstartTimeThreshold: 0
      }, this.options)));
    };
    _proto.destroy = function destroy() {
      this.removeAllRenderingPlugins();
    };
    _proto.setOptions = function setOptions(options) {
      Object.assign(this.plugins[0].dragndropPluginOptions, options);
    };
    return Plugin;
  }(gLite.AbstractRendererPlugin);

  exports.Plugin = Plugin;

  Object.defineProperty(exports, '__esModule', { value: true });

})));