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.
600 lines
18 KiB
600 lines
18 KiB
var util = require('../../util');
|
|
var stack = require('../Stack');
|
|
var RangeItem = require('./item/RangeItem');
|
|
|
|
/**
|
|
* @constructor Group
|
|
* @param {Number | String} groupId
|
|
* @param {Object} data
|
|
* @param {ItemSet} itemSet
|
|
*/
|
|
function Group (groupId, data, itemSet) {
|
|
this.groupId = groupId;
|
|
this.subgroups = {};
|
|
this.subgroupIndex = 0;
|
|
this.subgroupOrderer = data && data.subgroupOrder;
|
|
this.itemSet = itemSet;
|
|
|
|
this.dom = {};
|
|
this.props = {
|
|
label: {
|
|
width: 0,
|
|
height: 0
|
|
}
|
|
};
|
|
this.className = null;
|
|
|
|
this.items = {}; // items filtered by groupId of this group
|
|
this.visibleItems = []; // items currently visible in window
|
|
this.orderedItems = {
|
|
byStart: [],
|
|
byEnd: []
|
|
};
|
|
this.checkRangedItems = false; // needed to refresh the ranged items if the window is programatically changed with NO overlap.
|
|
var me = this;
|
|
this.itemSet.body.emitter.on("checkRangedItems", function () {
|
|
me.checkRangedItems = true;
|
|
})
|
|
|
|
this._create();
|
|
|
|
this.setData(data);
|
|
}
|
|
|
|
/**
|
|
* Create DOM elements for the group
|
|
* @private
|
|
*/
|
|
Group.prototype._create = function() {
|
|
var label = document.createElement('div');
|
|
label.className = 'vis-label';
|
|
this.dom.label = label;
|
|
|
|
var inner = document.createElement('div');
|
|
inner.className = 'vis-inner';
|
|
label.appendChild(inner);
|
|
this.dom.inner = inner;
|
|
|
|
var foreground = document.createElement('div');
|
|
foreground.className = 'vis-group';
|
|
foreground['timeline-group'] = this;
|
|
this.dom.foreground = foreground;
|
|
|
|
this.dom.background = document.createElement('div');
|
|
this.dom.background.className = 'vis-group';
|
|
|
|
this.dom.axis = document.createElement('div');
|
|
this.dom.axis.className = 'vis-group';
|
|
|
|
// create a hidden marker to detect when the Timelines container is attached
|
|
// to the DOM, or the style of a parent of the Timeline is changed from
|
|
// display:none is changed to visible.
|
|
this.dom.marker = document.createElement('div');
|
|
this.dom.marker.style.visibility = 'hidden';
|
|
this.dom.marker.innerHTML = '?';
|
|
this.dom.background.appendChild(this.dom.marker);
|
|
};
|
|
|
|
/**
|
|
* Set the group data for this group
|
|
* @param {Object} data Group data, can contain properties content and className
|
|
*/
|
|
Group.prototype.setData = function(data) {
|
|
// update contents
|
|
var content = data && data.content;
|
|
if (content instanceof Element) {
|
|
this.dom.inner.appendChild(content);
|
|
}
|
|
else if (content !== undefined && content !== null) {
|
|
this.dom.inner.innerHTML = content;
|
|
}
|
|
else {
|
|
this.dom.inner.innerHTML = this.groupId || ''; // groupId can be null
|
|
}
|
|
|
|
// update title
|
|
this.dom.label.title = data && data.title || '';
|
|
|
|
if (!this.dom.inner.firstChild) {
|
|
util.addClassName(this.dom.inner, 'vis-hidden');
|
|
}
|
|
else {
|
|
util.removeClassName(this.dom.inner, 'vis-hidden');
|
|
}
|
|
|
|
// update className
|
|
var className = data && data.className || null;
|
|
if (className != this.className) {
|
|
if (this.className) {
|
|
util.removeClassName(this.dom.label, this.className);
|
|
util.removeClassName(this.dom.foreground, this.className);
|
|
util.removeClassName(this.dom.background, this.className);
|
|
util.removeClassName(this.dom.axis, this.className);
|
|
}
|
|
util.addClassName(this.dom.label, className);
|
|
util.addClassName(this.dom.foreground, className);
|
|
util.addClassName(this.dom.background, className);
|
|
util.addClassName(this.dom.axis, className);
|
|
this.className = className;
|
|
}
|
|
|
|
// update style
|
|
if (this.style) {
|
|
util.removeCssText(this.dom.label, this.style);
|
|
this.style = null;
|
|
}
|
|
if (data && data.style) {
|
|
util.addCssText(this.dom.label, data.style);
|
|
this.style = data.style;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Get the width of the group label
|
|
* @return {number} width
|
|
*/
|
|
Group.prototype.getLabelWidth = function() {
|
|
return this.props.label.width;
|
|
};
|
|
|
|
|
|
/**
|
|
* Repaint this group
|
|
* @param {{start: number, end: number}} range
|
|
* @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
|
|
* @param {boolean} [restack=false] Force restacking of all items
|
|
* @return {boolean} Returns true if the group is resized
|
|
*/
|
|
Group.prototype.redraw = function(range, margin, restack) {
|
|
var resized = false;
|
|
|
|
// force recalculation of the height of the items when the marker height changed
|
|
// (due to the Timeline being attached to the DOM or changed from display:none to visible)
|
|
var markerHeight = this.dom.marker.clientHeight;
|
|
if (markerHeight != this.lastMarkerHeight) {
|
|
this.lastMarkerHeight = markerHeight;
|
|
|
|
util.forEach(this.items, function (item) {
|
|
item.dirty = true;
|
|
if (item.displayed) item.redraw();
|
|
});
|
|
|
|
restack = true;
|
|
}
|
|
|
|
// reposition visible items vertically
|
|
if (typeof this.itemSet.options.order === 'function') {
|
|
// a custom order function
|
|
|
|
if (restack) {
|
|
// brute force restack of all items
|
|
|
|
// show all items
|
|
var me = this;
|
|
var limitSize = false;
|
|
util.forEach(this.items, function (item) {
|
|
if (!item.displayed) {
|
|
item.redraw();
|
|
me.visibleItems.push(item);
|
|
}
|
|
item.repositionX(limitSize);
|
|
});
|
|
|
|
// order all items and force a restacking
|
|
var customOrderedItems = this.orderedItems.byStart.slice().sort(function (a, b) {
|
|
return me.itemSet.options.order(a.data, b.data);
|
|
});
|
|
stack.stack(customOrderedItems, margin, true /* restack=true */);
|
|
}
|
|
|
|
this.visibleItems = this._updateVisibleItems(this.orderedItems, this.visibleItems, range);
|
|
}
|
|
else {
|
|
// no custom order function, lazy stacking
|
|
this.visibleItems = this._updateVisibleItems(this.orderedItems, this.visibleItems, range);
|
|
|
|
if (this.itemSet.options.stack) { // TODO: ugly way to access options...
|
|
stack.stack(this.visibleItems, margin, restack);
|
|
}
|
|
else { // no stacking
|
|
stack.nostack(this.visibleItems, margin, this.subgroups);
|
|
}
|
|
}
|
|
|
|
// recalculate the height of the group
|
|
var height = this._calculateHeight(margin);
|
|
|
|
// calculate actual size and position
|
|
var foreground = this.dom.foreground;
|
|
this.top = foreground.offsetTop;
|
|
this.left = foreground.offsetLeft;
|
|
this.width = foreground.offsetWidth;
|
|
resized = util.updateProperty(this, 'height', height) || resized;
|
|
|
|
// recalculate size of label
|
|
resized = util.updateProperty(this.props.label, 'width', this.dom.inner.clientWidth) || resized;
|
|
resized = util.updateProperty(this.props.label, 'height', this.dom.inner.clientHeight) || resized;
|
|
|
|
// apply new height
|
|
this.dom.background.style.height = height + 'px';
|
|
this.dom.foreground.style.height = height + 'px';
|
|
this.dom.label.style.height = height + 'px';
|
|
|
|
// update vertical position of items after they are re-stacked and the height of the group is calculated
|
|
for (var i = 0, ii = this.visibleItems.length; i < ii; i++) {
|
|
var item = this.visibleItems[i];
|
|
item.repositionY(margin);
|
|
}
|
|
|
|
return resized;
|
|
};
|
|
|
|
/**
|
|
* recalculate the height of the group
|
|
* @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
|
|
* @returns {number} Returns the height
|
|
* @private
|
|
*/
|
|
Group.prototype._calculateHeight = function (margin) {
|
|
// recalculate the height of the group
|
|
var height;
|
|
var visibleItems = this.visibleItems;
|
|
//var visibleSubgroups = [];
|
|
//this.visibleSubgroups = 0;
|
|
this.resetSubgroups();
|
|
var me = this;
|
|
if (visibleItems.length > 0) {
|
|
var min = visibleItems[0].top;
|
|
var max = visibleItems[0].top + visibleItems[0].height;
|
|
util.forEach(visibleItems, function (item) {
|
|
min = Math.min(min, item.top);
|
|
max = Math.max(max, (item.top + item.height));
|
|
if (item.data.subgroup !== undefined) {
|
|
me.subgroups[item.data.subgroup].height = Math.max(me.subgroups[item.data.subgroup].height,item.height);
|
|
me.subgroups[item.data.subgroup].visible = true;
|
|
}
|
|
});
|
|
if (min > margin.axis) {
|
|
// there is an empty gap between the lowest item and the axis
|
|
var offset = min - margin.axis;
|
|
max -= offset;
|
|
util.forEach(visibleItems, function (item) {
|
|
item.top -= offset;
|
|
});
|
|
}
|
|
height = max + margin.item.vertical / 2;
|
|
}
|
|
else {
|
|
height = 0;
|
|
}
|
|
height = Math.max(height, this.props.label.height);
|
|
|
|
return height;
|
|
};
|
|
|
|
/**
|
|
* Show this group: attach to the DOM
|
|
*/
|
|
Group.prototype.show = function() {
|
|
if (!this.dom.label.parentNode) {
|
|
this.itemSet.dom.labelSet.appendChild(this.dom.label);
|
|
}
|
|
|
|
if (!this.dom.foreground.parentNode) {
|
|
this.itemSet.dom.foreground.appendChild(this.dom.foreground);
|
|
}
|
|
|
|
if (!this.dom.background.parentNode) {
|
|
this.itemSet.dom.background.appendChild(this.dom.background);
|
|
}
|
|
|
|
if (!this.dom.axis.parentNode) {
|
|
this.itemSet.dom.axis.appendChild(this.dom.axis);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Hide this group: remove from the DOM
|
|
*/
|
|
Group.prototype.hide = function() {
|
|
var label = this.dom.label;
|
|
if (label.parentNode) {
|
|
label.parentNode.removeChild(label);
|
|
}
|
|
|
|
var foreground = this.dom.foreground;
|
|
if (foreground.parentNode) {
|
|
foreground.parentNode.removeChild(foreground);
|
|
}
|
|
|
|
var background = this.dom.background;
|
|
if (background.parentNode) {
|
|
background.parentNode.removeChild(background);
|
|
}
|
|
|
|
var axis = this.dom.axis;
|
|
if (axis.parentNode) {
|
|
axis.parentNode.removeChild(axis);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Add an item to the group
|
|
* @param {Item} item
|
|
*/
|
|
Group.prototype.add = function(item) {
|
|
this.items[item.id] = item;
|
|
item.setParent(this);
|
|
|
|
// add to
|
|
if (item.data.subgroup !== undefined) {
|
|
if (this.subgroups[item.data.subgroup] === undefined) {
|
|
this.subgroups[item.data.subgroup] = {height:0, visible: false, index:this.subgroupIndex, items: []};
|
|
this.subgroupIndex++;
|
|
}
|
|
this.subgroups[item.data.subgroup].items.push(item);
|
|
}
|
|
this.orderSubgroups();
|
|
|
|
if (this.visibleItems.indexOf(item) == -1) {
|
|
var range = this.itemSet.body.range; // TODO: not nice accessing the range like this
|
|
this._checkIfVisible(item, this.visibleItems, range);
|
|
}
|
|
};
|
|
|
|
Group.prototype.orderSubgroups = function() {
|
|
if (this.subgroupOrderer !== undefined) {
|
|
var sortArray = [];
|
|
if (typeof this.subgroupOrderer == 'string') {
|
|
for (var subgroup in this.subgroups) {
|
|
sortArray.push({subgroup: subgroup, sortField: this.subgroups[subgroup].items[0].data[this.subgroupOrderer]})
|
|
}
|
|
sortArray.sort(function (a, b) {
|
|
return a.sortField - b.sortField;
|
|
})
|
|
}
|
|
else if (typeof this.subgroupOrderer == 'function') {
|
|
for (var subgroup in this.subgroups) {
|
|
sortArray.push(this.subgroups[subgroup].items[0].data);
|
|
}
|
|
sortArray.sort(this.subgroupOrderer);
|
|
}
|
|
|
|
if (sortArray.length > 0) {
|
|
for (var i = 0; i < sortArray.length; i++) {
|
|
this.subgroups[sortArray[i].subgroup].index = i;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
Group.prototype.resetSubgroups = function() {
|
|
for (var subgroup in this.subgroups) {
|
|
if (this.subgroups.hasOwnProperty(subgroup)) {
|
|
this.subgroups[subgroup].visible = false;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Remove an item from the group
|
|
* @param {Item} item
|
|
*/
|
|
Group.prototype.remove = function(item) {
|
|
delete this.items[item.id];
|
|
item.setParent(null);
|
|
|
|
// remove from visible items
|
|
var index = this.visibleItems.indexOf(item);
|
|
if (index != -1) this.visibleItems.splice(index, 1);
|
|
|
|
if(item.data.subgroup !== undefined){
|
|
var subgroup = this.subgroups[item.data.subgroup];
|
|
if(subgroup){
|
|
var itemIndex = subgroup.items.indexOf(item);
|
|
subgroup.items.splice(itemIndex,1);
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* Remove an item from the corresponding DataSet
|
|
* @param {Item} item
|
|
*/
|
|
Group.prototype.removeFromDataSet = function(item) {
|
|
this.itemSet.removeItem(item.id);
|
|
};
|
|
|
|
|
|
/**
|
|
* Reorder the items
|
|
*/
|
|
Group.prototype.order = function() {
|
|
var array = util.toArray(this.items);
|
|
var startArray = [];
|
|
var endArray = [];
|
|
|
|
for (var i = 0; i < array.length; i++) {
|
|
if (array[i].data.end !== undefined) {
|
|
endArray.push(array[i]);
|
|
}
|
|
startArray.push(array[i]);
|
|
}
|
|
this.orderedItems = {
|
|
byStart: startArray,
|
|
byEnd: endArray
|
|
};
|
|
|
|
stack.orderByStart(this.orderedItems.byStart);
|
|
stack.orderByEnd(this.orderedItems.byEnd);
|
|
};
|
|
|
|
|
|
/**
|
|
* Update the visible items
|
|
* @param {{byStart: Item[], byEnd: Item[]}} orderedItems All items ordered by start date and by end date
|
|
* @param {Item[]} visibleItems The previously visible items.
|
|
* @param {{start: number, end: number}} range Visible range
|
|
* @return {Item[]} visibleItems The new visible items.
|
|
* @private
|
|
*/
|
|
Group.prototype._updateVisibleItems = function(orderedItems, oldVisibleItems, range) {
|
|
var visibleItems = [];
|
|
var visibleItemsLookup = {}; // we keep this to quickly look up if an item already exists in the list without using indexOf on visibleItems
|
|
var interval = (range.end - range.start) / 4;
|
|
var lowerBound = range.start - interval;
|
|
var upperBound = range.end + interval;
|
|
var item, i;
|
|
|
|
// this function is used to do the binary search.
|
|
var searchFunction = function (value) {
|
|
if (value < lowerBound) {return -1;}
|
|
else if (value <= upperBound) {return 0;}
|
|
else {return 1;}
|
|
}
|
|
|
|
// first check if the items that were in view previously are still in view.
|
|
// IMPORTANT: this handles the case for the items with startdate before the window and enddate after the window!
|
|
// also cleans up invisible items.
|
|
if (oldVisibleItems.length > 0) {
|
|
for (i = 0; i < oldVisibleItems.length; i++) {
|
|
this._checkIfVisibleWithReference(oldVisibleItems[i], visibleItems, visibleItemsLookup, range);
|
|
}
|
|
}
|
|
|
|
// we do a binary search for the items that have only start values.
|
|
var initialPosByStart = util.binarySearchCustom(orderedItems.byStart, searchFunction, 'data','start');
|
|
|
|
// trace the visible items from the inital start pos both ways until an invisible item is found, we only look at the start values.
|
|
this._traceVisible(initialPosByStart, orderedItems.byStart, visibleItems, visibleItemsLookup, function (item) {
|
|
return (item.data.start < lowerBound || item.data.start > upperBound);
|
|
});
|
|
|
|
// if the window has changed programmatically without overlapping the old window, the ranged items with start < lowerBound and end > upperbound are not shown.
|
|
// We therefore have to brute force check all items in the byEnd list
|
|
if (this.checkRangedItems == true) {
|
|
this.checkRangedItems = false;
|
|
for (i = 0; i < orderedItems.byEnd.length; i++) {
|
|
this._checkIfVisibleWithReference(orderedItems.byEnd[i], visibleItems, visibleItemsLookup, range);
|
|
}
|
|
}
|
|
else {
|
|
// we do a binary search for the items that have defined end times.
|
|
var initialPosByEnd = util.binarySearchCustom(orderedItems.byEnd, searchFunction, 'data','end');
|
|
|
|
// trace the visible items from the inital start pos both ways until an invisible item is found, we only look at the end values.
|
|
this._traceVisible(initialPosByEnd, orderedItems.byEnd, visibleItems, visibleItemsLookup, function (item) {
|
|
return (item.data.end < lowerBound || item.data.end > upperBound);
|
|
});
|
|
}
|
|
|
|
|
|
// finally, we reposition all the visible items.
|
|
for (i = 0; i < visibleItems.length; i++) {
|
|
item = visibleItems[i];
|
|
if (!item.displayed) item.show();
|
|
// reposition item horizontally
|
|
item.repositionX();
|
|
}
|
|
|
|
// debug
|
|
//console.log("new line")
|
|
//if (this.groupId == null) {
|
|
// for (i = 0; i < orderedItems.byStart.length; i++) {
|
|
// item = orderedItems.byStart[i].data;
|
|
// console.log('start',i,initialPosByStart, item.start.valueOf(), item.content, item.start >= lowerBound && item.start <= upperBound,i == initialPosByStart ? "<------------------- HEREEEE" : "")
|
|
// }
|
|
// for (i = 0; i < orderedItems.byEnd.length; i++) {
|
|
// item = orderedItems.byEnd[i].data;
|
|
// console.log('rangeEnd',i,initialPosByEnd, item.end.valueOf(), item.content, item.end >= range.start && item.end <= range.end,i == initialPosByEnd ? "<------------------- HEREEEE" : "")
|
|
// }
|
|
//}
|
|
|
|
return visibleItems;
|
|
};
|
|
|
|
Group.prototype._traceVisible = function (initialPos, items, visibleItems, visibleItemsLookup, breakCondition) {
|
|
var item;
|
|
var i;
|
|
|
|
if (initialPos != -1) {
|
|
for (i = initialPos; i >= 0; i--) {
|
|
item = items[i];
|
|
if (breakCondition(item)) {
|
|
break;
|
|
}
|
|
else {
|
|
if (visibleItemsLookup[item.id] === undefined) {
|
|
visibleItemsLookup[item.id] = true;
|
|
visibleItems.push(item);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = initialPos + 1; i < items.length; i++) {
|
|
item = items[i];
|
|
if (breakCondition(item)) {
|
|
break;
|
|
}
|
|
else {
|
|
if (visibleItemsLookup[item.id] === undefined) {
|
|
visibleItemsLookup[item.id] = true;
|
|
visibleItems.push(item);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* this function is very similar to the _checkIfInvisible() but it does not
|
|
* return booleans, hides the item if it should not be seen and always adds to
|
|
* the visibleItems.
|
|
* this one is for brute forcing and hiding.
|
|
*
|
|
* @param {Item} item
|
|
* @param {Array} visibleItems
|
|
* @param {{start:number, end:number}} range
|
|
* @private
|
|
*/
|
|
Group.prototype._checkIfVisible = function(item, visibleItems, range) {
|
|
if (item.isVisible(range)) {
|
|
if (!item.displayed) item.show();
|
|
// reposition item horizontally
|
|
item.repositionX();
|
|
visibleItems.push(item);
|
|
}
|
|
else {
|
|
if (item.displayed) item.hide();
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* this function is very similar to the _checkIfInvisible() but it does not
|
|
* return booleans, hides the item if it should not be seen and always adds to
|
|
* the visibleItems.
|
|
* this one is for brute forcing and hiding.
|
|
*
|
|
* @param {Item} item
|
|
* @param {Array} visibleItems
|
|
* @param {{start:number, end:number}} range
|
|
* @private
|
|
*/
|
|
Group.prototype._checkIfVisibleWithReference = function(item, visibleItems, visibleItemsLookup, range) {
|
|
if (item.isVisible(range)) {
|
|
if (visibleItemsLookup[item.id] === undefined) {
|
|
visibleItemsLookup[item.id] = true;
|
|
visibleItems.push(item);
|
|
}
|
|
}
|
|
else {
|
|
if (item.displayed) item.hide();
|
|
}
|
|
};
|
|
|
|
|
|
|
|
module.exports = Group;
|