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| "use strict";
var _interopRequire = function (obj) { return obj && obj.__esModule ? obj["default"] : obj; };
var _slicedToArray = function (arr, i) { Eif (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { var _arr = []; for (var _iterator = arr[Symbol.iterator](), _step; !(_step = _iterator.next()).done;) { _arr.push(_step.value); if (i && _arr.length === i) break; } return _arr; } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } };
var _classCallCheck = function (instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };
var invariant = _interopRequire(require("invariant"));
var keyMirror = _interopRequire(require("keymirror"));
var isArray = _interopRequire(require("lodash/lang/isArray"));
var getNextUniqueId = _interopRequire(require("./getNextUniqueId"));
var HandlerRoles = keyMirror({
SOURCE: null,
TARGET: null
});
var HANDLE_SEPARATOR = "🐲";
var TYPE_SEPARATOR = "💧";
function parseHandle(handle) {
var _handle$split = handle.split(HANDLE_SEPARATOR);
var _handle$split2 = _slicedToArray(_handle$split, 3);
var type = _handle$split2[0];
var role = _handle$split2[1];
var id = _handle$split2[2];
if (type.indexOf(TYPE_SEPARATOR) > -1) {
type = type.split(TYPE_SEPARATOR);
}
return { type: type, role: role, id: id };
}
function makeHandle(_ref) {
var type = _ref.type;
var role = _ref.role;
var id = _ref.id;
if (isArray(type)) {
type = type.join(TYPE_SEPARATOR);
}
return [type, role, id].join(HANDLE_SEPARATOR);
}
function validateSourceContract(source) {
invariant(typeof source.canDrag === "function", "Expected canDrag to be a function.");
invariant(typeof source.beginDrag === "function", "Expected beginDrag to be a function.");
invariant(typeof source.endDrag === "function", "Expected endDrag to be a function.");
}
function validateTargetContract(target) {
invariant(typeof target.drop === "function", "Expected beginDrag to be a function.");
}
function validateSourceHandle(handle) {
var _parseHandle = parseHandle(handle);
var role = _parseHandle.role;
invariant(role === HandlerRoles.SOURCE, "Expected to receive a source handle");
}
function validateTargetHandle(handle) {
var _parseHandle = parseHandle(handle);
var role = _parseHandle.role;
invariant(role === HandlerRoles.TARGET, "Expected to receive a target handle");
}
function validateType(type, allowArray) {
if (allowArray && isArray(type)) {
type.forEach(function (t) {
return validateType(t, false);
});
return;
}
invariant(typeof type === "string", allowArray ? "Type can only be a string or an array of them." : "Type can only be a string.");
}
var HandlerRegistry = (function () {
function HandlerRegistry(actions) {
_classCallCheck(this, HandlerRegistry);
this.actions = actions;
this.handlers = {};
this.pinnedSourceHandle = null;
this.pinnedSource = null;
}
HandlerRegistry.prototype.addSource = function addSource(type, source) {
validateType(type);
validateSourceContract(source);
var sourceHandle = this.addHandler(HandlerRoles.SOURCE, type, source);
validateSourceHandle(sourceHandle);
this.actions.addSource(sourceHandle);
return sourceHandle;
};
HandlerRegistry.prototype.addTarget = function addTarget(type, target) {
validateType(type, true);
validateTargetContract(target);
var targetHandle = this.addHandler(HandlerRoles.TARGET, type, target);
validateTargetHandle(targetHandle);
this.actions.addTarget(targetHandle);
return targetHandle;
};
HandlerRegistry.prototype.addHandler = function addHandler(role, type, handler) {
var id = getNextUniqueId().toString();
var handle = makeHandle({ role: role, type: type, id: id });
invariant(!this.containsHandler(handler), "Cannot add the same handler instance twice.");
this.handlers[handle] = handler;
return handle;
};
HandlerRegistry.prototype.containsHandler = function containsHandler(handler) {
var _this = this;
return Object.keys(this.handlers).some(function (key) {
return _this.handlers[key] === handler;
});
};
HandlerRegistry.prototype.getSource = function getSource(sourceHandle, includePinned) {
validateSourceHandle(sourceHandle);
var isPinned = includePinned && sourceHandle === this.pinnedSourceHandle;
var source = isPinned ? this.pinnedSource : this.handlers[sourceHandle];
return source;
};
HandlerRegistry.prototype.getTarget = function getTarget(targetHandle) {
validateTargetHandle(targetHandle);
return this.handlers[targetHandle];
};
HandlerRegistry.prototype.getSourceType = function getSourceType(sourceHandle) {
validateSourceHandle(sourceHandle);
var _parseHandle = parseHandle(sourceHandle);
var type = _parseHandle.type;
return type;
};
HandlerRegistry.prototype.getTargetType = function getTargetType(targetHandle) {
validateTargetHandle(targetHandle);
var _parseHandle = parseHandle(targetHandle);
var type = _parseHandle.type;
return type;
};
HandlerRegistry.prototype.removeSource = function removeSource(sourceHandle) {
validateSourceHandle(sourceHandle);
invariant(this.getSource(sourceHandle), "Cannot remove a source that was not added.");
delete this.handlers[sourceHandle];
this.actions.removeSource(sourceHandle);
};
HandlerRegistry.prototype.removeTarget = function removeTarget(targetHandle) {
validateTargetHandle(targetHandle);
invariant(this.getTarget(targetHandle), "Cannot remove a target that was not added.");
delete this.handlers[targetHandle];
this.actions.removeTarget(targetHandle);
};
HandlerRegistry.prototype.pinSource = function pinSource(handle) {
var source = this.getSource(handle);
invariant(source, "Cannot pin a source that was not added.");
this.pinnedSourceHandle = handle;
this.pinnedSource = source;
};
HandlerRegistry.prototype.unpinSource = function unpinSource() {
invariant(this.pinnedSource, "No source is pinned at the time.");
this.pinnedSourceHandle = null;
this.pinnedSource = null;
};
return HandlerRegistry;
})();
module.exports = HandlerRegistry;
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an/Documents/Projects/dnd-core/modules/utils/HandlerRegistry.js","sourcesContent":["import invariant from 'invariant';\nimport keyMirror from 'keymirror';\nimport isArray from 'lodash/lang/isArray';\nimport getNextUniqueId from './getNextUniqueId';\n\nconst HandlerRoles = keyMirror({\n  SOURCE: null,\n  TARGET: null\n});\n\nconst HANDLE_SEPARATOR = '\\ud83d\\udc32';\nconst TYPE_SEPARATOR = '\\ud83d\\udca7';\n\nfunction parseHandle(handle) {\n  let [type, role, id] = handle.split(HANDLE_SEPARATOR);\n  if (type.indexOf(TYPE_SEPARATOR) > -1) {\n    type = type.split(TYPE_SEPARATOR);\n  }\n  return { type, role, id };\n}\n\nfunction makeHandle({ type, role, id }) {\n  if (isArray(type)) {\n    type = type.join(TYPE_SEPARATOR);\n  }\n  return [type, role, id].join(HANDLE_SEPARATOR);\n}\n\nfunction validateSourceContract(source) {\n  invariant(typeof source.canDrag === 'function', 'Expected canDrag to be a function.');\n  invariant(typeof source.beginDrag === 'function', 'Expected beginDrag to be a function.');\n  invariant(typeof source.endDrag === 'function', 'Expected endDrag to be a function.');\n}\n\nfunction validateTargetContract(target) {\n  invariant(typeof target.drop === 'function', 'Expected beginDrag to be a function.');\n}\n\nfunction validateSourceHandle(handle) {\n  const { role } = parseHandle(handle);\n  invariant(role === HandlerRoles.SOURCE, 'Expected to receive a source handle');\n}\n\nfunction validateTargetHandle(handle) {\n  const { role } = parseHandle(handle);\n  invariant(role === HandlerRoles.TARGET, 'Expected to receive a target handle');\n}\n\nfunction validateType(type, allowArray) {\n  if (allowArray && isArray(type)) {\n    type.forEach(t => validateType(t, false));\n    return;\n  }\n\n  invariant(\n    typeof type === 'string',\n    allowArray ?\n      'Type can only be a string or an array of them.' :\n      'Type can only be a string.'\n  );\n}\n\nexport default class HandlerRegistry {\n  constructor(actions) {\n    this.actions = actions;\n\n    this.handlers = {};\n    this.pinnedSourceHandle = null;\n    this.pinnedSource = null;\n  }\n\n  addSource(type, source) {\n    validateType(type);\n    validateSourceContract(source);\n\n    const sourceHandle = this.addHandler(HandlerRoles.SOURCE, type, source);\n    validateSourceHandle(sourceHandle);\n\n    this.actions.addSource(sourceHandle);\n    return sourceHandle;\n  }\n\n  addTarget(type, target) {\n    validateType(type, true);\n    validateTargetContract(target);\n\n    const targetHandle = this.addHandler(HandlerRoles.TARGET, type, target);\n    validateTargetHandle(targetHandle);\n\n    this.actions.addTarget(targetHandle);\n    return targetHandle;\n  }\n\n  addHandler(role, type, handler) {\n    const id = getNextUniqueId().toString();\n    const handle = makeHandle({ role, type, id });\n\n    invariant(!this.containsHandler(handler), 'Cannot add the same handler instance twice.');\n    this.handlers[handle] = handler;\n\n    return handle;\n  }\n\n  containsHandler(handler) {\n    return Object.keys(this.handlers).some(key => this.handlers[key] === handler);\n  }\n\n  getSource(sourceHandle, includePinned) {\n    validateSourceHandle(sourceHandle);\n\n    const isPinned = includePinned && sourceHandle === this.pinnedSourceHandle;\n    const source = isPinned ? this.pinnedSource : this.handlers[sourceHandle];\n\n    return source;\n  }\n\n  getTarget(targetHandle) {\n    validateTargetHandle(targetHandle);\n    return this.handlers[targetHandle];\n  }\n\n  getSourceType(sourceHandle) {\n    validateSourceHandle(sourceHandle);\n    const { type } = parseHandle(sourceHandle);\n    return type;\n  }\n\n  getTargetType(targetHandle) {\n    validateTargetHandle(targetHandle);\n    const { type } = parseHandle(targetHandle);\n    return type;\n  }\n\n  removeSource(sourceHandle) {\n    validateSourceHandle(sourceHandle);\n    invariant(this.getSource(sourceHandle), 'Cannot remove a source that was not added.');\n\n    delete this.handlers[sourceHandle];\n    this.actions.removeSource(sourceHandle);\n  }\n\n  removeTarget(targetHandle) {\n    validateTargetHandle(targetHandle);\n    invariant(this.getTarget(targetHandle), 'Cannot remove a target that was not added.');\n\n    delete this.handlers[targetHandle];\n    this.actions.removeTarget(targetHandle);\n  }\n\n  pinSource(handle) {\n    const source = this.getSource(handle);\n    invariant(source, 'Cannot pin a source that was not added.');\n\n    this.pinnedSourceHandle = handle;\n    this.pinnedSource = source;\n  }\n\n  unpinSource() {\n    invariant(this.pinnedSource, 'No source is pinned at the time.');\n\n    this.pinnedSourceHandle = null;\n    this.pinnedSource = null;\n  }\n}"]} |