You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1542 lines
42 KiB
1542 lines
42 KiB
var Hammer = require('../../module/hammer');
|
|
var util = require('../../util');
|
|
var DataSet = require('../../DataSet');
|
|
var DataView = require('../../DataView');
|
|
var Component = require('./Component');
|
|
var Group = require('./Group');
|
|
var BackgroundGroup = require('./BackgroundGroup');
|
|
var BoxItem = require('./item/BoxItem');
|
|
var PointItem = require('./item/PointItem');
|
|
var RangeItem = require('./item/RangeItem');
|
|
var BackgroundItem = require('./item/BackgroundItem');
|
|
|
|
|
|
var UNGROUPED = '__ungrouped__'; // reserved group id for ungrouped items
|
|
var BACKGROUND = '__background__'; // reserved group id for background items without group
|
|
|
|
/**
|
|
* An ItemSet holds a set of items and ranges which can be displayed in a
|
|
* range. The width is determined by the parent of the ItemSet, and the height
|
|
* is determined by the size of the items.
|
|
* @param {{dom: Object, domProps: Object, emitter: Emitter, range: Range}} body
|
|
* @param {Object} [options] See ItemSet.setOptions for the available options.
|
|
* @constructor ItemSet
|
|
* @extends Component
|
|
*/
|
|
function ItemSet(body, options) {
|
|
this.body = body;
|
|
|
|
this.defaultOptions = {
|
|
type: null, // 'box', 'point', 'range', 'background'
|
|
orientation: 'bottom', // 'top' or 'bottom'
|
|
align: 'auto', // alignment of box items
|
|
stack: true,
|
|
groupOrder: null,
|
|
|
|
selectable: true,
|
|
editable: {
|
|
updateTime: false,
|
|
updateGroup: false,
|
|
add: false,
|
|
remove: false
|
|
},
|
|
|
|
onAdd: function (item, callback) {
|
|
callback(item);
|
|
},
|
|
onUpdate: function (item, callback) {
|
|
callback(item);
|
|
},
|
|
onMove: function (item, callback) {
|
|
callback(item);
|
|
},
|
|
onRemove: function (item, callback) {
|
|
callback(item);
|
|
},
|
|
onMoving: function (item, callback) {
|
|
callback(item);
|
|
},
|
|
|
|
margin: {
|
|
item: {
|
|
horizontal: 10,
|
|
vertical: 10
|
|
},
|
|
axis: 20
|
|
},
|
|
padding: 5
|
|
};
|
|
|
|
// options is shared by this ItemSet and all its items
|
|
this.options = util.extend({}, this.defaultOptions);
|
|
|
|
// options for getting items from the DataSet with the correct type
|
|
this.itemOptions = {
|
|
type: {start: 'Date', end: 'Date'}
|
|
};
|
|
|
|
this.conversion = {
|
|
toScreen: body.util.toScreen,
|
|
toTime: body.util.toTime
|
|
};
|
|
this.dom = {};
|
|
this.props = {};
|
|
this.hammer = null;
|
|
|
|
var me = this;
|
|
this.itemsData = null; // DataSet
|
|
this.groupsData = null; // DataSet
|
|
|
|
// listeners for the DataSet of the items
|
|
this.itemListeners = {
|
|
'add': function (event, params, senderId) {
|
|
me._onAdd(params.items);
|
|
},
|
|
'update': function (event, params, senderId) {
|
|
me._onUpdate(params.items);
|
|
},
|
|
'remove': function (event, params, senderId) {
|
|
me._onRemove(params.items);
|
|
}
|
|
};
|
|
|
|
// listeners for the DataSet of the groups
|
|
this.groupListeners = {
|
|
'add': function (event, params, senderId) {
|
|
me._onAddGroups(params.items);
|
|
},
|
|
'update': function (event, params, senderId) {
|
|
me._onUpdateGroups(params.items);
|
|
},
|
|
'remove': function (event, params, senderId) {
|
|
me._onRemoveGroups(params.items);
|
|
}
|
|
};
|
|
|
|
this.items = {}; // object with an Item for every data item
|
|
this.groups = {}; // Group object for every group
|
|
this.groupIds = [];
|
|
|
|
this.selection = []; // list with the ids of all selected nodes
|
|
this.stackDirty = true; // if true, all items will be restacked on next redraw
|
|
|
|
this.touchParams = {}; // stores properties while dragging
|
|
// create the HTML DOM
|
|
|
|
this._create();
|
|
|
|
this.setOptions(options);
|
|
}
|
|
|
|
ItemSet.prototype = new Component();
|
|
|
|
// available item types will be registered here
|
|
ItemSet.types = {
|
|
background: BackgroundItem,
|
|
box: BoxItem,
|
|
range: RangeItem,
|
|
point: PointItem
|
|
};
|
|
|
|
/**
|
|
* Create the HTML DOM for the ItemSet
|
|
*/
|
|
ItemSet.prototype._create = function(){
|
|
var frame = document.createElement('div');
|
|
frame.className = 'itemset';
|
|
frame['timeline-itemset'] = this;
|
|
this.dom.frame = frame;
|
|
|
|
// create background panel
|
|
var background = document.createElement('div');
|
|
background.className = 'background';
|
|
frame.appendChild(background);
|
|
this.dom.background = background;
|
|
|
|
// create foreground panel
|
|
var foreground = document.createElement('div');
|
|
foreground.className = 'foreground';
|
|
frame.appendChild(foreground);
|
|
this.dom.foreground = foreground;
|
|
|
|
// create axis panel
|
|
var axis = document.createElement('div');
|
|
axis.className = 'axis';
|
|
this.dom.axis = axis;
|
|
|
|
// create labelset
|
|
var labelSet = document.createElement('div');
|
|
labelSet.className = 'labelset';
|
|
this.dom.labelSet = labelSet;
|
|
|
|
// create ungrouped Group
|
|
this._updateUngrouped();
|
|
|
|
// create background Group
|
|
var backgroundGroup = new BackgroundGroup(BACKGROUND, null, this);
|
|
backgroundGroup.show();
|
|
this.groups[BACKGROUND] = backgroundGroup;
|
|
|
|
// attach event listeners
|
|
// Note: we bind to the centerContainer for the case where the height
|
|
// of the center container is larger than of the ItemSet, so we
|
|
// can click in the empty area to create a new item or deselect an item.
|
|
this.hammer = Hammer(this.body.dom.centerContainer, {
|
|
preventDefault: true
|
|
});
|
|
|
|
// drag items when selected
|
|
this.hammer.on('touch', this._onTouch.bind(this));
|
|
this.hammer.on('dragstart', this._onDragStart.bind(this));
|
|
this.hammer.on('drag', this._onDrag.bind(this));
|
|
this.hammer.on('dragend', this._onDragEnd.bind(this));
|
|
|
|
// single select (or unselect) when tapping an item
|
|
this.hammer.on('tap', this._onSelectItem.bind(this));
|
|
|
|
// multi select when holding mouse/touch, or on ctrl+click
|
|
this.hammer.on('hold', this._onMultiSelectItem.bind(this));
|
|
|
|
// add item on doubletap
|
|
this.hammer.on('doubletap', this._onAddItem.bind(this));
|
|
|
|
// attach to the DOM
|
|
this.show();
|
|
};
|
|
|
|
/**
|
|
* Set options for the ItemSet. Existing options will be extended/overwritten.
|
|
* @param {Object} [options] The following options are available:
|
|
* {String} type
|
|
* Default type for the items. Choose from 'box'
|
|
* (default), 'point', 'range', or 'background'.
|
|
* The default style can be overwritten by
|
|
* individual items.
|
|
* {String} align
|
|
* Alignment for the items, only applicable for
|
|
* BoxItem. Choose 'center' (default), 'left', or
|
|
* 'right'.
|
|
* {String} orientation
|
|
* Orientation of the item set. Choose 'top' or
|
|
* 'bottom' (default).
|
|
* {Function} groupOrder
|
|
* A sorting function for ordering groups
|
|
* {Boolean} stack
|
|
* If true (deafult), items will be stacked on
|
|
* top of each other.
|
|
* {Number} margin.axis
|
|
* Margin between the axis and the items in pixels.
|
|
* Default is 20.
|
|
* {Number} margin.item.horizontal
|
|
* Horizontal margin between items in pixels.
|
|
* Default is 10.
|
|
* {Number} margin.item.vertical
|
|
* Vertical Margin between items in pixels.
|
|
* Default is 10.
|
|
* {Number} margin.item
|
|
* Margin between items in pixels in both horizontal
|
|
* and vertical direction. Default is 10.
|
|
* {Number} margin
|
|
* Set margin for both axis and items in pixels.
|
|
* {Number} padding
|
|
* Padding of the contents of an item in pixels.
|
|
* Must correspond with the items css. Default is 5.
|
|
* {Boolean} selectable
|
|
* If true (default), items can be selected.
|
|
* {Boolean} editable
|
|
* Set all editable options to true or false
|
|
* {Boolean} editable.updateTime
|
|
* Allow dragging an item to an other moment in time
|
|
* {Boolean} editable.updateGroup
|
|
* Allow dragging an item to an other group
|
|
* {Boolean} editable.add
|
|
* Allow creating new items on double tap
|
|
* {Boolean} editable.remove
|
|
* Allow removing items by clicking the delete button
|
|
* top right of a selected item.
|
|
* {Function(item: Item, callback: Function)} onAdd
|
|
* Callback function triggered when an item is about to be added:
|
|
* when the user double taps an empty space in the Timeline.
|
|
* {Function(item: Item, callback: Function)} onUpdate
|
|
* Callback function fired when an item is about to be updated.
|
|
* This function typically has to show a dialog where the user
|
|
* change the item. If not implemented, nothing happens.
|
|
* {Function(item: Item, callback: Function)} onMove
|
|
* Fired when an item has been moved. If not implemented,
|
|
* the move action will be accepted.
|
|
* {Function(item: Item, callback: Function)} onRemove
|
|
* Fired when an item is about to be deleted.
|
|
* If not implemented, the item will be always removed.
|
|
*/
|
|
ItemSet.prototype.setOptions = function(options) {
|
|
if (options) {
|
|
// copy all options that we know
|
|
var fields = ['type', 'align', 'orientation', 'padding', 'stack', 'selectable', 'groupOrder', 'dataAttributes', 'template','hide'];
|
|
util.selectiveExtend(fields, this.options, options);
|
|
|
|
if ('margin' in options) {
|
|
if (typeof options.margin === 'number') {
|
|
this.options.margin.axis = options.margin;
|
|
this.options.margin.item.horizontal = options.margin;
|
|
this.options.margin.item.vertical = options.margin;
|
|
}
|
|
else if (typeof options.margin === 'object') {
|
|
util.selectiveExtend(['axis'], this.options.margin, options.margin);
|
|
if ('item' in options.margin) {
|
|
if (typeof options.margin.item === 'number') {
|
|
this.options.margin.item.horizontal = options.margin.item;
|
|
this.options.margin.item.vertical = options.margin.item;
|
|
}
|
|
else if (typeof options.margin.item === 'object') {
|
|
util.selectiveExtend(['horizontal', 'vertical'], this.options.margin.item, options.margin.item);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ('editable' in options) {
|
|
if (typeof options.editable === 'boolean') {
|
|
this.options.editable.updateTime = options.editable;
|
|
this.options.editable.updateGroup = options.editable;
|
|
this.options.editable.add = options.editable;
|
|
this.options.editable.remove = options.editable;
|
|
}
|
|
else if (typeof options.editable === 'object') {
|
|
util.selectiveExtend(['updateTime', 'updateGroup', 'add', 'remove'], this.options.editable, options.editable);
|
|
}
|
|
}
|
|
|
|
// callback functions
|
|
var addCallback = (function (name) {
|
|
var fn = options[name];
|
|
if (fn) {
|
|
if (!(fn instanceof Function)) {
|
|
throw new Error('option ' + name + ' must be a function ' + name + '(item, callback)');
|
|
}
|
|
this.options[name] = fn;
|
|
}
|
|
}).bind(this);
|
|
['onAdd', 'onUpdate', 'onRemove', 'onMove', 'onMoving'].forEach(addCallback);
|
|
|
|
// force the itemSet to refresh: options like orientation and margins may be changed
|
|
this.markDirty();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Mark the ItemSet dirty so it will refresh everything with next redraw
|
|
*/
|
|
ItemSet.prototype.markDirty = function() {
|
|
this.groupIds = [];
|
|
this.stackDirty = true;
|
|
};
|
|
|
|
/**
|
|
* Destroy the ItemSet
|
|
*/
|
|
ItemSet.prototype.destroy = function() {
|
|
this.hide();
|
|
this.setItems(null);
|
|
this.setGroups(null);
|
|
|
|
this.hammer = null;
|
|
|
|
this.body = null;
|
|
this.conversion = null;
|
|
};
|
|
|
|
/**
|
|
* Hide the component from the DOM
|
|
*/
|
|
ItemSet.prototype.hide = function() {
|
|
// remove the frame containing the items
|
|
if (this.dom.frame.parentNode) {
|
|
this.dom.frame.parentNode.removeChild(this.dom.frame);
|
|
}
|
|
|
|
// remove the axis with dots
|
|
if (this.dom.axis.parentNode) {
|
|
this.dom.axis.parentNode.removeChild(this.dom.axis);
|
|
}
|
|
|
|
// remove the labelset containing all group labels
|
|
if (this.dom.labelSet.parentNode) {
|
|
this.dom.labelSet.parentNode.removeChild(this.dom.labelSet);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Show the component in the DOM (when not already visible).
|
|
* @return {Boolean} changed
|
|
*/
|
|
ItemSet.prototype.show = function() {
|
|
// show frame containing the items
|
|
if (!this.dom.frame.parentNode) {
|
|
this.body.dom.center.appendChild(this.dom.frame);
|
|
}
|
|
|
|
// show axis with dots
|
|
if (!this.dom.axis.parentNode) {
|
|
this.body.dom.backgroundVertical.appendChild(this.dom.axis);
|
|
}
|
|
|
|
// show labelset containing labels
|
|
if (!this.dom.labelSet.parentNode) {
|
|
this.body.dom.left.appendChild(this.dom.labelSet);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Set selected items by their id. Replaces the current selection
|
|
* Unknown id's are silently ignored.
|
|
* @param {string[] | string} [ids] An array with zero or more id's of the items to be
|
|
* selected, or a single item id. If ids is undefined
|
|
* or an empty array, all items will be unselected.
|
|
*/
|
|
ItemSet.prototype.setSelection = function(ids) {
|
|
var i, ii, id, item;
|
|
|
|
if (ids == undefined) ids = [];
|
|
if (!Array.isArray(ids)) ids = [ids];
|
|
|
|
// unselect currently selected items
|
|
for (i = 0, ii = this.selection.length; i < ii; i++) {
|
|
id = this.selection[i];
|
|
item = this.items[id];
|
|
if (item) item.unselect();
|
|
}
|
|
|
|
// select items
|
|
this.selection = [];
|
|
for (i = 0, ii = ids.length; i < ii; i++) {
|
|
id = ids[i];
|
|
item = this.items[id];
|
|
if (item) {
|
|
this.selection.push(id);
|
|
item.select();
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Get the selected items by their id
|
|
* @return {Array} ids The ids of the selected items
|
|
*/
|
|
ItemSet.prototype.getSelection = function() {
|
|
return this.selection.concat([]);
|
|
};
|
|
|
|
/**
|
|
* Get the id's of the currently visible items.
|
|
* @returns {Array} The ids of the visible items
|
|
*/
|
|
ItemSet.prototype.getVisibleItems = function() {
|
|
var range = this.body.range.getRange();
|
|
var left = this.body.util.toScreen(range.start);
|
|
var right = this.body.util.toScreen(range.end);
|
|
|
|
var ids = [];
|
|
for (var groupId in this.groups) {
|
|
if (this.groups.hasOwnProperty(groupId)) {
|
|
var group = this.groups[groupId];
|
|
var rawVisibleItems = group.visibleItems;
|
|
|
|
// filter the "raw" set with visibleItems into a set which is really
|
|
// visible by pixels
|
|
for (var i = 0; i < rawVisibleItems.length; i++) {
|
|
var item = rawVisibleItems[i];
|
|
// TODO: also check whether visible vertically
|
|
if ((item.left < right) && (item.left + item.width > left)) {
|
|
ids.push(item.id);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ids;
|
|
};
|
|
|
|
/**
|
|
* Deselect a selected item
|
|
* @param {String | Number} id
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._deselect = function(id) {
|
|
var selection = this.selection;
|
|
for (var i = 0, ii = selection.length; i < ii; i++) {
|
|
if (selection[i] == id) { // non-strict comparison!
|
|
selection.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Repaint the component
|
|
* @return {boolean} Returns true if the component is resized
|
|
*/
|
|
ItemSet.prototype.redraw = function() {
|
|
var margin = this.options.margin,
|
|
range = this.body.range,
|
|
asSize = util.option.asSize,
|
|
options = this.options,
|
|
orientation = options.orientation,
|
|
resized = false,
|
|
frame = this.dom.frame,
|
|
editable = options.editable.updateTime || options.editable.updateGroup;
|
|
|
|
// recalculate absolute position (before redrawing groups)
|
|
this.props.top = this.body.domProps.top.height + this.body.domProps.border.top;
|
|
this.props.left = this.body.domProps.left.width + this.body.domProps.border.left;
|
|
|
|
// update class name
|
|
frame.className = 'itemset' + (editable ? ' editable' : '');
|
|
|
|
// reorder the groups (if needed)
|
|
resized = this._orderGroups() || resized;
|
|
|
|
// check whether zoomed (in that case we need to re-stack everything)
|
|
// TODO: would be nicer to get this as a trigger from Range
|
|
var visibleInterval = range.end - range.start;
|
|
var zoomed = (visibleInterval != this.lastVisibleInterval) || (this.props.width != this.props.lastWidth);
|
|
if (zoomed) this.stackDirty = true;
|
|
this.lastVisibleInterval = visibleInterval;
|
|
this.props.lastWidth = this.props.width;
|
|
|
|
var restack = this.stackDirty;
|
|
var firstGroup = this._firstGroup();
|
|
var firstMargin = {
|
|
item: margin.item,
|
|
axis: margin.axis
|
|
};
|
|
var nonFirstMargin = {
|
|
item: margin.item,
|
|
axis: margin.item.vertical / 2
|
|
};
|
|
var height = 0;
|
|
var minHeight = margin.axis + margin.item.vertical;
|
|
|
|
// redraw the background group
|
|
this.groups[BACKGROUND].redraw(range, nonFirstMargin, restack);
|
|
|
|
// redraw all regular groups
|
|
util.forEach(this.groups, function (group) {
|
|
var groupMargin = (group == firstGroup) ? firstMargin : nonFirstMargin;
|
|
var groupResized = group.redraw(range, groupMargin, restack);
|
|
resized = groupResized || resized;
|
|
height += group.height;
|
|
});
|
|
height = Math.max(height, minHeight);
|
|
this.stackDirty = false;
|
|
|
|
// update frame height
|
|
frame.style.height = asSize(height);
|
|
|
|
// calculate actual size
|
|
this.props.width = frame.offsetWidth;
|
|
this.props.height = height;
|
|
|
|
// reposition axis
|
|
this.dom.axis.style.top = asSize((orientation == 'top') ?
|
|
(this.body.domProps.top.height + this.body.domProps.border.top) :
|
|
(this.body.domProps.top.height + this.body.domProps.centerContainer.height));
|
|
this.dom.axis.style.left = '0';
|
|
|
|
// check if this component is resized
|
|
resized = this._isResized() || resized;
|
|
|
|
return resized;
|
|
};
|
|
|
|
/**
|
|
* Get the first group, aligned with the axis
|
|
* @return {Group | null} firstGroup
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._firstGroup = function() {
|
|
var firstGroupIndex = (this.options.orientation == 'top') ? 0 : (this.groupIds.length - 1);
|
|
var firstGroupId = this.groupIds[firstGroupIndex];
|
|
var firstGroup = this.groups[firstGroupId] || this.groups[UNGROUPED];
|
|
|
|
return firstGroup || null;
|
|
};
|
|
|
|
/**
|
|
* Create or delete the group holding all ungrouped items. This group is used when
|
|
* there are no groups specified.
|
|
* @protected
|
|
*/
|
|
ItemSet.prototype._updateUngrouped = function() {
|
|
var ungrouped = this.groups[UNGROUPED];
|
|
var background = this.groups[BACKGROUND];
|
|
var item, itemId;
|
|
|
|
if (this.groupsData) {
|
|
// remove the group holding all ungrouped items
|
|
if (ungrouped) {
|
|
ungrouped.hide();
|
|
delete this.groups[UNGROUPED];
|
|
|
|
for (itemId in this.items) {
|
|
if (this.items.hasOwnProperty(itemId)) {
|
|
item = this.items[itemId];
|
|
item.parent && item.parent.remove(item);
|
|
var groupId = this._getGroupId(item.data);
|
|
var group = this.groups[groupId];
|
|
group && group.add(item) || item.hide();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// create a group holding all (unfiltered) items
|
|
if (!ungrouped) {
|
|
var id = null;
|
|
var data = null;
|
|
ungrouped = new Group(id, data, this);
|
|
this.groups[UNGROUPED] = ungrouped;
|
|
|
|
for (itemId in this.items) {
|
|
if (this.items.hasOwnProperty(itemId)) {
|
|
item = this.items[itemId];
|
|
ungrouped.add(item);
|
|
}
|
|
}
|
|
|
|
ungrouped.show();
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Get the element for the labelset
|
|
* @return {HTMLElement} labelSet
|
|
*/
|
|
ItemSet.prototype.getLabelSet = function() {
|
|
return this.dom.labelSet;
|
|
};
|
|
|
|
/**
|
|
* Set items
|
|
* @param {vis.DataSet | null} items
|
|
*/
|
|
ItemSet.prototype.setItems = function(items) {
|
|
var me = this,
|
|
ids,
|
|
oldItemsData = this.itemsData;
|
|
|
|
// replace the dataset
|
|
if (!items) {
|
|
this.itemsData = null;
|
|
}
|
|
else if (items instanceof DataSet || items instanceof DataView) {
|
|
this.itemsData = items;
|
|
}
|
|
else {
|
|
throw new TypeError('Data must be an instance of DataSet or DataView');
|
|
}
|
|
|
|
if (oldItemsData) {
|
|
// unsubscribe from old dataset
|
|
util.forEach(this.itemListeners, function (callback, event) {
|
|
oldItemsData.off(event, callback);
|
|
});
|
|
|
|
// remove all drawn items
|
|
ids = oldItemsData.getIds();
|
|
this._onRemove(ids);
|
|
}
|
|
|
|
if (this.itemsData) {
|
|
// subscribe to new dataset
|
|
var id = this.id;
|
|
util.forEach(this.itemListeners, function (callback, event) {
|
|
me.itemsData.on(event, callback, id);
|
|
});
|
|
|
|
// add all new items
|
|
ids = this.itemsData.getIds();
|
|
this._onAdd(ids);
|
|
|
|
// update the group holding all ungrouped items
|
|
this._updateUngrouped();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Get the current items
|
|
* @returns {vis.DataSet | null}
|
|
*/
|
|
ItemSet.prototype.getItems = function() {
|
|
return this.itemsData;
|
|
};
|
|
|
|
/**
|
|
* Set groups
|
|
* @param {vis.DataSet} groups
|
|
*/
|
|
ItemSet.prototype.setGroups = function(groups) {
|
|
var me = this,
|
|
ids;
|
|
|
|
// unsubscribe from current dataset
|
|
if (this.groupsData) {
|
|
util.forEach(this.groupListeners, function (callback, event) {
|
|
me.groupsData.unsubscribe(event, callback);
|
|
});
|
|
|
|
// remove all drawn groups
|
|
ids = this.groupsData.getIds();
|
|
this.groupsData = null;
|
|
this._onRemoveGroups(ids); // note: this will cause a redraw
|
|
}
|
|
|
|
// replace the dataset
|
|
if (!groups) {
|
|
this.groupsData = null;
|
|
}
|
|
else if (groups instanceof DataSet || groups instanceof DataView) {
|
|
this.groupsData = groups;
|
|
}
|
|
else {
|
|
throw new TypeError('Data must be an instance of DataSet or DataView');
|
|
}
|
|
|
|
if (this.groupsData) {
|
|
// subscribe to new dataset
|
|
var id = this.id;
|
|
util.forEach(this.groupListeners, function (callback, event) {
|
|
me.groupsData.on(event, callback, id);
|
|
});
|
|
|
|
// draw all ms
|
|
ids = this.groupsData.getIds();
|
|
this._onAddGroups(ids);
|
|
}
|
|
|
|
// update the group holding all ungrouped items
|
|
this._updateUngrouped();
|
|
|
|
// update the order of all items in each group
|
|
this._order();
|
|
|
|
this.body.emitter.emit('change', {queue: true});
|
|
};
|
|
|
|
/**
|
|
* Get the current groups
|
|
* @returns {vis.DataSet | null} groups
|
|
*/
|
|
ItemSet.prototype.getGroups = function() {
|
|
return this.groupsData;
|
|
};
|
|
|
|
/**
|
|
* Remove an item by its id
|
|
* @param {String | Number} id
|
|
*/
|
|
ItemSet.prototype.removeItem = function(id) {
|
|
var item = this.itemsData.get(id),
|
|
dataset = this.itemsData.getDataSet();
|
|
|
|
if (item) {
|
|
// confirm deletion
|
|
this.options.onRemove(item, function (item) {
|
|
if (item) {
|
|
// remove by id here, it is possible that an item has no id defined
|
|
// itself, so better not delete by the item itself
|
|
dataset.remove(id);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Get the time of an item based on it's data and options.type
|
|
* @param {Object} itemData
|
|
* @returns {string} Returns the type
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._getType = function (itemData) {
|
|
return itemData.type || this.options.type || (itemData.end ? 'range' : 'box');
|
|
};
|
|
|
|
|
|
/**
|
|
* Get the group id for an item
|
|
* @param {Object} itemData
|
|
* @returns {string} Returns the groupId
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._getGroupId = function (itemData) {
|
|
var type = this._getType(itemData);
|
|
if (type == 'background' && itemData.group == undefined) {
|
|
return BACKGROUND;
|
|
}
|
|
else {
|
|
return this.groupsData ? itemData.group : UNGROUPED;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Handle updated items
|
|
* @param {Number[]} ids
|
|
* @protected
|
|
*/
|
|
ItemSet.prototype._onUpdate = function(ids) {
|
|
var me = this;
|
|
|
|
ids.forEach(function (id) {
|
|
var itemData = me.itemsData.get(id, me.itemOptions);
|
|
var item = me.items[id];
|
|
var type = me._getType(itemData);
|
|
|
|
var constructor = ItemSet.types[type];
|
|
|
|
if (item) {
|
|
// update item
|
|
if (!constructor || !(item instanceof constructor)) {
|
|
// item type has changed, delete the item and recreate it
|
|
me._removeItem(item);
|
|
item = null;
|
|
}
|
|
else {
|
|
me._updateItem(item, itemData);
|
|
}
|
|
}
|
|
|
|
if (!item) {
|
|
// create item
|
|
if (constructor) {
|
|
item = new constructor(itemData, me.conversion, me.options);
|
|
item.id = id; // TODO: not so nice setting id afterwards
|
|
me._addItem(item);
|
|
}
|
|
else if (type == 'rangeoverflow') {
|
|
// TODO: deprecated since version 2.1.0 (or 3.0.0?). cleanup some day
|
|
throw new TypeError('Item type "rangeoverflow" is deprecated. Use css styling instead: ' +
|
|
'.vis.timeline .item.range .content {overflow: visible;}');
|
|
}
|
|
else {
|
|
throw new TypeError('Unknown item type "' + type + '"');
|
|
}
|
|
}
|
|
});
|
|
|
|
this._order();
|
|
this.stackDirty = true; // force re-stacking of all items next redraw
|
|
this.body.emitter.emit('change', {queue: true});
|
|
};
|
|
|
|
/**
|
|
* Handle added items
|
|
* @param {Number[]} ids
|
|
* @protected
|
|
*/
|
|
ItemSet.prototype._onAdd = ItemSet.prototype._onUpdate;
|
|
|
|
/**
|
|
* Handle removed items
|
|
* @param {Number[]} ids
|
|
* @protected
|
|
*/
|
|
ItemSet.prototype._onRemove = function(ids) {
|
|
var count = 0;
|
|
var me = this;
|
|
ids.forEach(function (id) {
|
|
var item = me.items[id];
|
|
if (item) {
|
|
count++;
|
|
me._removeItem(item);
|
|
}
|
|
});
|
|
|
|
if (count) {
|
|
// update order
|
|
this._order();
|
|
this.stackDirty = true; // force re-stacking of all items next redraw
|
|
this.body.emitter.emit('change', {queue: true});
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Update the order of item in all groups
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._order = function() {
|
|
// reorder the items in all groups
|
|
// TODO: optimization: only reorder groups affected by the changed items
|
|
util.forEach(this.groups, function (group) {
|
|
group.order();
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Handle updated groups
|
|
* @param {Number[]} ids
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onUpdateGroups = function(ids) {
|
|
this._onAddGroups(ids);
|
|
};
|
|
|
|
/**
|
|
* Handle changed groups (added or updated)
|
|
* @param {Number[]} ids
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onAddGroups = function(ids) {
|
|
var me = this;
|
|
|
|
ids.forEach(function (id) {
|
|
var groupData = me.groupsData.get(id);
|
|
var group = me.groups[id];
|
|
|
|
if (!group) {
|
|
// check for reserved ids
|
|
if (id == UNGROUPED || id == BACKGROUND) {
|
|
throw new Error('Illegal group id. ' + id + ' is a reserved id.');
|
|
}
|
|
|
|
var groupOptions = Object.create(me.options);
|
|
util.extend(groupOptions, {
|
|
height: null
|
|
});
|
|
|
|
group = new Group(id, groupData, me);
|
|
me.groups[id] = group;
|
|
|
|
// add items with this groupId to the new group
|
|
for (var itemId in me.items) {
|
|
if (me.items.hasOwnProperty(itemId)) {
|
|
var item = me.items[itemId];
|
|
if (item.data.group == id) {
|
|
group.add(item);
|
|
}
|
|
}
|
|
}
|
|
|
|
group.order();
|
|
group.show();
|
|
}
|
|
else {
|
|
// update group
|
|
group.setData(groupData);
|
|
}
|
|
});
|
|
|
|
this.body.emitter.emit('change', {queue: true});
|
|
};
|
|
|
|
/**
|
|
* Handle removed groups
|
|
* @param {Number[]} ids
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onRemoveGroups = function(ids) {
|
|
var groups = this.groups;
|
|
ids.forEach(function (id) {
|
|
var group = groups[id];
|
|
|
|
if (group) {
|
|
group.hide();
|
|
delete groups[id];
|
|
}
|
|
});
|
|
|
|
this.markDirty();
|
|
|
|
this.body.emitter.emit('change', {queue: true});
|
|
};
|
|
|
|
/**
|
|
* Reorder the groups if needed
|
|
* @return {boolean} changed
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._orderGroups = function () {
|
|
if (this.groupsData) {
|
|
// reorder the groups
|
|
var groupIds = this.groupsData.getIds({
|
|
order: this.options.groupOrder
|
|
});
|
|
|
|
var changed = !util.equalArray(groupIds, this.groupIds);
|
|
if (changed) {
|
|
// hide all groups, removes them from the DOM
|
|
var groups = this.groups;
|
|
groupIds.forEach(function (groupId) {
|
|
groups[groupId].hide();
|
|
});
|
|
|
|
// show the groups again, attach them to the DOM in correct order
|
|
groupIds.forEach(function (groupId) {
|
|
groups[groupId].show();
|
|
});
|
|
|
|
this.groupIds = groupIds;
|
|
}
|
|
|
|
return changed;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Add a new item
|
|
* @param {Item} item
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._addItem = function(item) {
|
|
this.items[item.id] = item;
|
|
|
|
// add to group
|
|
var groupId = this._getGroupId(item.data);
|
|
var group = this.groups[groupId];
|
|
if (group) group.add(item);
|
|
};
|
|
|
|
/**
|
|
* Update an existing item
|
|
* @param {Item} item
|
|
* @param {Object} itemData
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._updateItem = function(item, itemData) {
|
|
var oldGroupId = item.data.group;
|
|
|
|
// update the items data (will redraw the item when displayed)
|
|
item.setData(itemData);
|
|
|
|
// update group
|
|
if (oldGroupId != item.data.group) {
|
|
var oldGroup = this.groups[oldGroupId];
|
|
if (oldGroup) oldGroup.remove(item);
|
|
|
|
var groupId = this._getGroupId(item.data);
|
|
var group = this.groups[groupId];
|
|
if (group) group.add(item);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Delete an item from the ItemSet: remove it from the DOM, from the map
|
|
* with items, and from the map with visible items, and from the selection
|
|
* @param {Item} item
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._removeItem = function(item) {
|
|
// remove from DOM
|
|
item.hide();
|
|
|
|
// remove from items
|
|
delete this.items[item.id];
|
|
|
|
// remove from selection
|
|
var index = this.selection.indexOf(item.id);
|
|
if (index != -1) this.selection.splice(index, 1);
|
|
|
|
// remove from group
|
|
item.parent && item.parent.remove(item);
|
|
};
|
|
|
|
/**
|
|
* Create an array containing all items being a range (having an end date)
|
|
* @param array
|
|
* @returns {Array}
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._constructByEndArray = function(array) {
|
|
var endArray = [];
|
|
|
|
for (var i = 0; i < array.length; i++) {
|
|
if (array[i] instanceof RangeItem) {
|
|
endArray.push(array[i]);
|
|
}
|
|
}
|
|
return endArray;
|
|
};
|
|
|
|
/**
|
|
* Register the clicked item on touch, before dragStart is initiated.
|
|
*
|
|
* dragStart is initiated from a mousemove event, which can have left the item
|
|
* already resulting in an item == null
|
|
*
|
|
* @param {Event} event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onTouch = function (event) {
|
|
// store the touched item, used in _onDragStart
|
|
this.touchParams.item = ItemSet.itemFromTarget(event);
|
|
};
|
|
|
|
/**
|
|
* Start dragging the selected events
|
|
* @param {Event} event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onDragStart = function (event) {
|
|
if (!this.options.editable.updateTime && !this.options.editable.updateGroup) {
|
|
return;
|
|
}
|
|
|
|
var item = this.touchParams.item || null;
|
|
var me = this;
|
|
var props;
|
|
|
|
if (item && item.selected) {
|
|
var dragLeftItem = event.target.dragLeftItem;
|
|
var dragRightItem = event.target.dragRightItem;
|
|
|
|
if (dragLeftItem) {
|
|
props = {
|
|
item: dragLeftItem,
|
|
initialX: event.gesture.center.clientX
|
|
};
|
|
|
|
if (me.options.editable.updateTime) {
|
|
props.start = item.data.start.valueOf();
|
|
}
|
|
if (me.options.editable.updateGroup) {
|
|
if ('group' in item.data) props.group = item.data.group;
|
|
}
|
|
|
|
this.touchParams.itemProps = [props];
|
|
}
|
|
else if (dragRightItem) {
|
|
props = {
|
|
item: dragRightItem,
|
|
initialX: event.gesture.center.clientX
|
|
};
|
|
|
|
if (me.options.editable.updateTime) {
|
|
props.end = item.data.end.valueOf();
|
|
}
|
|
if (me.options.editable.updateGroup) {
|
|
if ('group' in item.data) props.group = item.data.group;
|
|
}
|
|
|
|
this.touchParams.itemProps = [props];
|
|
}
|
|
else {
|
|
this.touchParams.itemProps = this.getSelection().map(function (id) {
|
|
var item = me.items[id];
|
|
var props = {
|
|
item: item,
|
|
initialX: event.gesture.center.clientX
|
|
};
|
|
|
|
if (me.options.editable.updateTime) {
|
|
if ('start' in item.data) {
|
|
props.start = item.data.start.valueOf();
|
|
|
|
if ('end' in item.data) {
|
|
// we store a duration here in order not to change the width
|
|
// of the item when moving it.
|
|
props.duration = item.data.end.valueOf() - props.start;
|
|
}
|
|
}
|
|
}
|
|
if (me.options.editable.updateGroup) {
|
|
if ('group' in item.data) props.group = item.data.group;
|
|
}
|
|
|
|
return props;
|
|
});
|
|
}
|
|
|
|
event.stopPropagation();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Drag selected items
|
|
* @param {Event} event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onDrag = function (event) {
|
|
event.preventDefault();
|
|
|
|
if (this.touchParams.itemProps) {
|
|
var me = this;
|
|
var snap = this.body.util.snap || null;
|
|
var xOffset = this.body.dom.root.offsetLeft + this.body.domProps.left.width;
|
|
|
|
// move
|
|
this.touchParams.itemProps.forEach(function (props) {
|
|
var newProps = {};
|
|
var current = me.body.util.toTime(event.gesture.center.clientX - xOffset);
|
|
var initial = me.body.util.toTime(props.initialX - xOffset);
|
|
var offset = current - initial;
|
|
|
|
if ('start' in props) {
|
|
var start = new Date(props.start + offset);
|
|
newProps.start = snap ? snap(start) : start;
|
|
}
|
|
|
|
if ('end' in props) {
|
|
var end = new Date(props.end + offset);
|
|
newProps.end = snap ? snap(end) : end;
|
|
}
|
|
else if ('duration' in props) {
|
|
newProps.end = new Date(newProps.start.valueOf() + props.duration);
|
|
}
|
|
|
|
if ('group' in props) {
|
|
// drag from one group to another
|
|
var group = ItemSet.groupFromTarget(event);
|
|
newProps.group = group && group.groupId;
|
|
}
|
|
|
|
// confirm moving the item
|
|
var itemData = util.extend({}, props.item.data, newProps);
|
|
me.options.onMoving(itemData, function (itemData) {
|
|
if (itemData) {
|
|
me._updateItemProps(props.item, itemData);
|
|
}
|
|
});
|
|
});
|
|
|
|
this.stackDirty = true; // force re-stacking of all items next redraw
|
|
this.body.emitter.emit('change');
|
|
|
|
event.stopPropagation();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Update an items properties
|
|
* @param {Item} item
|
|
* @param {Object} props Can contain properties start, end, and group.
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._updateItemProps = function(item, props) {
|
|
// TODO: copy all properties from props to item? (also new ones)
|
|
if ('start' in props) item.data.start = props.start;
|
|
if ('end' in props) item.data.end = props.end;
|
|
if ('group' in props && item.data.group != props.group) {
|
|
this._moveToGroup(item, props.group)
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Move an item to another group
|
|
* @param {Item} item
|
|
* @param {String | Number} groupId
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._moveToGroup = function(item, groupId) {
|
|
var group = this.groups[groupId];
|
|
if (group && group.groupId != item.data.group) {
|
|
var oldGroup = item.parent;
|
|
oldGroup.remove(item);
|
|
oldGroup.order();
|
|
group.add(item);
|
|
group.order();
|
|
|
|
item.data.group = group.groupId;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* End of dragging selected items
|
|
* @param {Event} event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onDragEnd = function (event) {
|
|
event.preventDefault()
|
|
|
|
if (this.touchParams.itemProps) {
|
|
// prepare a change set for the changed items
|
|
var changes = [],
|
|
me = this,
|
|
dataset = this.itemsData.getDataSet();
|
|
|
|
var itemProps = this.touchParams.itemProps ;
|
|
this.touchParams.itemProps = null;
|
|
itemProps.forEach(function (props) {
|
|
var id = props.item.id,
|
|
itemData = me.itemsData.get(id, me.itemOptions);
|
|
|
|
var changed = false;
|
|
if ('start' in props.item.data) {
|
|
changed = (props.start != props.item.data.start.valueOf());
|
|
itemData.start = util.convert(props.item.data.start,
|
|
dataset._options.type && dataset._options.type.start || 'Date');
|
|
}
|
|
if ('end' in props.item.data) {
|
|
changed = changed || (props.end != props.item.data.end.valueOf());
|
|
itemData.end = util.convert(props.item.data.end,
|
|
dataset._options.type && dataset._options.type.end || 'Date');
|
|
}
|
|
if ('group' in props.item.data) {
|
|
changed = changed || (props.group != props.item.data.group);
|
|
itemData.group = props.item.data.group;
|
|
}
|
|
|
|
// only apply changes when start or end is actually changed
|
|
if (changed) {
|
|
me.options.onMove(itemData, function (itemData) {
|
|
if (itemData) {
|
|
// apply changes
|
|
itemData[dataset._fieldId] = id; // ensure the item contains its id (can be undefined)
|
|
changes.push(itemData);
|
|
}
|
|
else {
|
|
// restore original values
|
|
me._updateItemProps(props.item, props);
|
|
|
|
me.stackDirty = true; // force re-stacking of all items next redraw
|
|
me.body.emitter.emit('change');
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
// apply the changes to the data (if there are changes)
|
|
if (changes.length) {
|
|
dataset.update(changes);
|
|
}
|
|
|
|
event.stopPropagation();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Handle selecting/deselecting an item when tapping it
|
|
* @param {Event} event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onSelectItem = function (event) {
|
|
if (!this.options.selectable) return;
|
|
|
|
var ctrlKey = event.gesture.srcEvent && event.gesture.srcEvent.ctrlKey;
|
|
var shiftKey = event.gesture.srcEvent && event.gesture.srcEvent.shiftKey;
|
|
if (ctrlKey || shiftKey) {
|
|
this._onMultiSelectItem(event);
|
|
return;
|
|
}
|
|
|
|
var oldSelection = this.getSelection();
|
|
|
|
var item = ItemSet.itemFromTarget(event);
|
|
var selection = item ? [item.id] : [];
|
|
this.setSelection(selection);
|
|
|
|
var newSelection = this.getSelection();
|
|
|
|
// emit a select event,
|
|
// except when old selection is empty and new selection is still empty
|
|
if (newSelection.length > 0 || oldSelection.length > 0) {
|
|
this.body.emitter.emit('select', {
|
|
items: newSelection
|
|
});
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Handle creation and updates of an item on double tap
|
|
* @param event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onAddItem = function (event) {
|
|
if (!this.options.selectable) return;
|
|
if (!this.options.editable.add) return;
|
|
|
|
var me = this,
|
|
snap = this.body.util.snap || null,
|
|
item = ItemSet.itemFromTarget(event);
|
|
|
|
if (item) {
|
|
// update item
|
|
|
|
// execute async handler to update the item (or cancel it)
|
|
var itemData = me.itemsData.get(item.id); // get a clone of the data from the dataset
|
|
this.options.onUpdate(itemData, function (itemData) {
|
|
if (itemData) {
|
|
me.itemsData.getDataSet().update(itemData);
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
// add item
|
|
var xAbs = util.getAbsoluteLeft(this.dom.frame);
|
|
var x = event.gesture.center.pageX - xAbs;
|
|
var start = this.body.util.toTime(x);
|
|
var newItem = {
|
|
start: snap ? snap(start) : start,
|
|
content: 'new item'
|
|
};
|
|
|
|
// when default type is a range, add a default end date to the new item
|
|
if (this.options.type === 'range') {
|
|
var end = this.body.util.toTime(x + this.props.width / 5);
|
|
newItem.end = snap ? snap(end) : end;
|
|
}
|
|
|
|
newItem[this.itemsData._fieldId] = util.randomUUID();
|
|
|
|
var group = ItemSet.groupFromTarget(event);
|
|
if (group) {
|
|
newItem.group = group.groupId;
|
|
}
|
|
|
|
// execute async handler to customize (or cancel) adding an item
|
|
this.options.onAdd(newItem, function (item) {
|
|
if (item) {
|
|
me.itemsData.getDataSet().add(item);
|
|
// TODO: need to trigger a redraw?
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Handle selecting/deselecting multiple items when holding an item
|
|
* @param {Event} event
|
|
* @private
|
|
*/
|
|
ItemSet.prototype._onMultiSelectItem = function (event) {
|
|
if (!this.options.selectable) return;
|
|
|
|
var selection,
|
|
item = ItemSet.itemFromTarget(event);
|
|
|
|
if (item) {
|
|
// multi select items
|
|
selection = this.getSelection(); // current selection
|
|
|
|
var shiftKey = event.gesture.touches[0] && event.gesture.touches[0].shiftKey || false;
|
|
if (shiftKey) {
|
|
// select all items between the old selection and the tapped item
|
|
|
|
// determine the selection range
|
|
selection.push(item.id);
|
|
var range = ItemSet._getItemRange(this.itemsData.get(selection, this.itemOptions));
|
|
|
|
// select all items within the selection range
|
|
selection = [];
|
|
for (var id in this.items) {
|
|
if (this.items.hasOwnProperty(id)) {
|
|
var _item = this.items[id];
|
|
var start = _item.data.start;
|
|
var end = (_item.data.end !== undefined) ? _item.data.end : start;
|
|
|
|
if (start >= range.min && end <= range.max) {
|
|
selection.push(_item.id); // do not use id but item.id, id itself is stringified
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// add/remove this item from the current selection
|
|
var index = selection.indexOf(item.id);
|
|
if (index == -1) {
|
|
// item is not yet selected -> select it
|
|
selection.push(item.id);
|
|
}
|
|
else {
|
|
// item is already selected -> deselect it
|
|
selection.splice(index, 1);
|
|
}
|
|
}
|
|
|
|
this.setSelection(selection);
|
|
|
|
this.body.emitter.emit('select', {
|
|
items: this.getSelection()
|
|
});
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Calculate the time range of a list of items
|
|
* @param {Array.<Object>} itemsData
|
|
* @return {{min: Date, max: Date}} Returns the range of the provided items
|
|
* @private
|
|
*/
|
|
ItemSet._getItemRange = function(itemsData) {
|
|
var max = null;
|
|
var min = null;
|
|
|
|
itemsData.forEach(function (data) {
|
|
if (min == null || data.start < min) {
|
|
min = data.start;
|
|
}
|
|
|
|
if (data.end != undefined) {
|
|
if (max == null || data.end > max) {
|
|
max = data.end;
|
|
}
|
|
}
|
|
else {
|
|
if (max == null || data.start > max) {
|
|
max = data.start;
|
|
}
|
|
}
|
|
});
|
|
|
|
return {
|
|
min: min,
|
|
max: max
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Find an item from an event target:
|
|
* searches for the attribute 'timeline-item' in the event target's element tree
|
|
* @param {Event} event
|
|
* @return {Item | null} item
|
|
*/
|
|
ItemSet.itemFromTarget = function(event) {
|
|
var target = event.target;
|
|
while (target) {
|
|
if (target.hasOwnProperty('timeline-item')) {
|
|
return target['timeline-item'];
|
|
}
|
|
target = target.parentNode;
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Find the Group from an event target:
|
|
* searches for the attribute 'timeline-group' in the event target's element tree
|
|
* @param {Event} event
|
|
* @return {Group | null} group
|
|
*/
|
|
ItemSet.groupFromTarget = function(event) {
|
|
var target = event.target;
|
|
while (target) {
|
|
if (target.hasOwnProperty('timeline-group')) {
|
|
return target['timeline-group'];
|
|
}
|
|
target = target.parentNode;
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
/**
|
|
* Find the ItemSet from an event target:
|
|
* searches for the attribute 'timeline-itemset' in the event target's element tree
|
|
* @param {Event} event
|
|
* @return {ItemSet | null} item
|
|
*/
|
|
ItemSet.itemSetFromTarget = function(event) {
|
|
var target = event.target;
|
|
while (target) {
|
|
if (target.hasOwnProperty('timeline-itemset')) {
|
|
return target['timeline-itemset'];
|
|
}
|
|
target = target.parentNode;
|
|
}
|
|
|
|
return null;
|
|
};
|
|
|
|
module.exports = ItemSet;
|