webgme-engine
Version:
WebGME server and Client API without a GUI
298 lines (258 loc) • 9.86 kB
JavaScript
/* globals define */
/**
* @author pmeijer / https://github.com/pmeijer
*/
define([
'common/core/constants',
'common/util/guid',
'common/core/CoreIllegalArgumentError',
], function (CORE_CONSTANTS, guid, CoreIllegalArgumentError) {
'use strict';
var CROSSCUT_REGISTRY_NAME = 'CrossCuts';
var CROSSCUT_ID_PREFIX = 'Crosscut_';
var _core = null;
/**
* Module for handling of crosscuts using the core. <br>
* To include in your module (e.g. Plugin) require via 'common/core/users/crosscut' and invoke initialize
* by passing a reference to a core instance.
* <br>
* @example
* crosscuts.initialize(core);
* crosscuts.getIds();
* @module crosscuts
*/
var exports = {};
/**
* Initializes the module with a core instance. This must be called before any other method.
* @param {Core} core - An instance of a Core module.
*/
exports.initialize = function (core) {
_core = core;
};
/**
*
* @param node
* @param crosscutId
* @param [memberPath]
* @private
*/
function _ensureCrosscutExists(node, crosscutId, memberPath) {
var exists = false;
if (typeof memberPath === 'string') {
// This ensure the crosscut exists.
exports.getMemberPaths(node, crosscutId).forEach(function (mPath) {
if (memberPath === mPath) {
exists = true;
}
});
if (!exists) {
throw new CoreIllegalArgumentError('Member [' + memberPath + '] does not exist in crosscut [' +
crosscutId + ']');
}
} else {
exports.getIds(node).forEach(function (cId) {
if (crosscutId === cId) {
exists = true;
}
});
if (!exists) {
throw new CoreIllegalArgumentError('Crosscut does not exist [' + crosscutId + ']');
}
}
}
function _ensureInitialized() {
if (_core === null) {
throw new Error('Crosscut module has not been initialized!');
}
}
function _getPath(nodeOrPath) {
return typeof nodeOrPath === 'string' ? nodeOrPath : _core.getPath(nodeOrPath);
}
/**
* Returns the raw stored crosscut info at the provided node.
* @param {module:Core~Node} node
* @returns {object[]}
*/
exports.getInfo = function (node) {
_ensureInitialized();
return _core.getRegistry(node, CROSSCUT_REGISTRY_NAME) || [];
};
/**
* Returns all titles of the crosscuts at the provided node.
* @param {module:Core~Node} node - Owner of the crosscuts.
* @returns {string[]}
*/
exports.getTitles = function (node) {
return exports.getInfo(node).map(function (cInfo) {
return cInfo.title;
});
};
/**
* Returns all the cross-cut ideas at the provided node.
* @param {module:Core~Node} node - Owner of the crosscuts.
* @returns {string[]} The crosscut ids.
*/
exports.getIds = function (node) {
return exports.getInfo(node).map(function (cInfo) {
return cInfo.SetID;
});
};
/**
* If title exists and is unique will return the id of the crosscut. If not
* it will throw an exception.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} title
* @returns {string} The crosscut id.
*/
exports.getIdFromTitle = function (node, title) {
var id;
exports.getInfo(node).forEach(function (cInfo) {
if (cInfo.title === title) {
if (typeof id === 'string') {
throw new CoreIllegalArgumentError('Title [' + title + '] appears in more than one crosscut!');
} else {
id = cInfo.SetID;
}
}
});
if (typeof id !== 'string') {
throw new CoreIllegalArgumentError('Title [' + title + '] does not exist among crosscuts!');
}
return id;
};
/**
* Returns the paths to all members in the specified crosscut.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} crosscutId
* @returns {string[]} Paths of members
*/
exports.getMemberPaths = function (node, crosscutId) {
_ensureCrosscutExists(node, crosscutId);
return _core.getMemberPaths(node, crosscutId);
};
/**
* Return the position at the cross-cuts for the member in the given crosscut at the provided node.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} crosscutId - Crosscut id to add member to.
* @param {module:Core~Node|string} memberNodeOrPath - Node, or path of, member to get position of.
* @returns {object} The position of the member inside the crosscut.
*/
exports.getMemberPosition = function (node, crosscutId, memberNodeOrPath) {
_ensureInitialized();
var memberPath = _getPath(memberNodeOrPath);
_ensureCrosscutExists(node, crosscutId, memberPath);
return _core.getMemberRegistry(node, crosscutId, memberPath, 'position') || {x: 100, y: 100};
};
/**
* Adds a new crosscut to the node.
* @param {module:Core~Node} node - Owner of the new crosscut.
* @param {string} title - Visible title of crosscut.
* @param {number} [order] - Tab order starting from 0, if not given will be placed at end.
* @returns {string} The id of the newly created crosscut.
*/
exports.createCrosscut = function (node, title, order) {
var id = CROSSCUT_ID_PREFIX + guid();
var cInfo = exports.getInfo(node);
if (typeof order === 'number') {
if (order < 0) {
throw new CoreIllegalArgumentError('Provided order must be >= 0');
}
if (cInfo.length < order) {
throw new CoreIllegalArgumentError('Provided order is greater than the largest possible index ' +
cInfo.length + '.');
}
cInfo.forEach(function (entry) {
if (entry.order >= order) {
entry.order += 1;
}
});
} else {
order = cInfo.length;
}
cInfo.push({
SetID: id,
order: order,
title: title,
});
_core.createSet(node, id);
cInfo.sort(function (a, b) {
if (a.order < b.order) {
return -1;
} else {
return 1;
}
});
_core.setRegistry(node, CROSSCUT_REGISTRY_NAME, cInfo);
return id;
};
/**
* Updates the position of the member inside the specified crosscut.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} crosscutId - Id of crosscut.
* @param {module:Core~Node|string} memberNodeOrPath - Node, or path of, member to update position for.
* @param {object} newPosition - Position of the member inside the crosscut.
*/
exports.setMemberPosition = function (node, crosscutId, memberNodeOrPath, newPosition) {
_ensureInitialized();
var memberPath = _getPath(memberNodeOrPath);
_ensureCrosscutExists(node, crosscutId, memberPath);
_core.setMemberRegistry(node, crosscutId, memberPath, 'position', newPosition);
};
/**
* Adds a member to the crosscut at an optionally provided position.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} crosscutId - Crosscut id to add member to.
* @param {module:Core~Node} memberNode - Node that should be added to crosscut.
* @param {object} [position={x:100, y:100}] - Position of the member inside crosscut.
*/
exports.addMember = function (node, crosscutId, memberNode, position) {
_ensureCrosscutExists(node, crosscutId);
position = position || {x: 100, y: 100};
_core.addMember(node, crosscutId, memberNode);
exports.setMemberPosition(node, crosscutId, memberNode, position);
};
/**
* Deletes the crosscut from the node.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} crosscutId - Id of crosscut to delete.
*/
exports.deleteCrosscut = function (node, crosscutId) {
var cInfo = exports.getInfo(node);
var entryOrder;
_ensureCrosscutExists(node, crosscutId);
cInfo = cInfo.filter(function (entry) {
if (entry.SetID === crosscutId) {
entryOrder = entry.order;
return false;
}
return true;
});
cInfo.forEach(function (entry) {
if (entry.order > entryOrder) {
entry.order -= 1;
}
});
cInfo.sort(function (a, b) {
if (a.order < b.order) {
return -1;
} else {
return 1;
}
});
_core.delSet(node, crosscutId);
_core.setRegistry(node, CROSSCUT_REGISTRY_NAME, cInfo);
};
/**
* Removes the member from the specified crosscut.
* @param {module:Core~Node} node - Owner of the crosscut.
* @param {string} crosscutId - Id of crosscut.
* @param {module:Core~Node|string} memberNodeOrPath - Node, or path of, member to delete from crosscut.
*/
exports.delMember = function (node, crosscutId, memberNodeOrPath) {
_ensureInitialized();
var memberPath = _getPath(memberNodeOrPath);
_ensureCrosscutExists(node, crosscutId, memberPath);
_core.delMember(node, crosscutId, memberPath);
};
return exports;
});