b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
135 lines
3.4 KiB
JavaScript
Executable file
135 lines
3.4 KiB
JavaScript
Executable file
/**
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* Conflict manager
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*/
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define(function(require, exports, module) {
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'use strict';
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/**
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* Module dependencies
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*/
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var ConflictSpan = require('conflict_span');
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var IntervalTree = require('interval_tree');
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var Timespan = require('common/timespan');
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function Overlap() {
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this.reset();
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}
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module.exports = Overlap;
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Overlap.prototype = {
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reset: function() {
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this.tree = new IntervalTree();
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this.conflicts = {};
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this.elements = {};
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},
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add: function(myBusytime, element) {
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this.tree.add(myBusytime);
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this.elements[myBusytime._id] = element;
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// Check for conflicts, bail if none
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var related = this._findRelated(myBusytime);
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if (0 === related.length) {
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return;
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}
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var myID = myBusytime._id;
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var myCS = this.conflicts[myID];
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var self = this;
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related.forEach(function(otherBusytime) {
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// Get the other's ID, skip the current
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var otherID = otherBusytime._id;
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if (otherID === myID) {
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return;
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}
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var otherCS = self.conflicts[otherID];
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if (!myCS && !otherCS) {
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// This is a brand new conflict.
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myCS = new ConflictSpan(self);
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myCS.add(myBusytime).add(otherBusytime);
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} else if (myCS && !otherCS) {
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// Other time can join this one's existing span
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myCS.add(otherBusytime);
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} else if (!myCS && otherCS) {
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// This time can join the other's existing span
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myCS = otherCS.add(myBusytime);
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} else if (myCS && otherCS && myCS != otherCS) {
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// Both already in different spans, so absorb other into this
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myCS.absorb(otherCS);
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}
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});
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},
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/**
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* Remove a busytime from the collection.
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* Unlike other methods you must pass a real
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* busytime object.
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*
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* @param {Object} busytime full busytime object.
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*/
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remove: function(busytime) {
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this._clearLayout(busytime);
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this.tree.remove(busytime);
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delete this.elements[busytime._id];
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var myID = busytime._id;
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var myCS = this.conflicts[myID];
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if (myCS) {
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myCS.remove(busytime);
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}
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},
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/**
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* Get the ConflictSpan associated with this busytime, if any.
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*
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* @param {Object|String} busytime id or busytime object.
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* @return {Object} associated ConflictSpan, if any.
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*/
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getConflictSpan: function(busytime) {
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var id = this._busytimeId(busytime);
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return this.conflicts[id];
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},
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/**
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* @param {Object|String} busytime id or busytime object.
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* @return {HTMLElement} associated dom element.
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*/
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getElement: function(busytime) {
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var id = this._busytimeId(busytime);
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return this.elements[id];
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},
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/** private */
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_busytimeId: function(busytime) {
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return (typeof(busytime) === 'string') ? busytime : busytime._id;
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},
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/**
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* Search tree for busytimes that overlap with the given.
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*/
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_findRelated: function(busytime) {
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//XXX: this is bad encapsulation but
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// we generate these when we insert
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// the points in the tree.
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var span = new Timespan(busytime._startDateMS, busytime._endDateMS);
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return this.tree.query(span);
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},
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/**
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* Clear the layout from a busytime element, presumably because it has just
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* been removed from conflict.
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*
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* @param {Object} busytime full busytime object.
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*/
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_clearLayout: function(busytime) {
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var el = this.elements[busytime._id];
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el.style.width = '';
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el.style.left = '';
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el.classList.remove('has-overlaps', 'many-overlaps');
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}
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};
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});
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