ok
Mini Shell
var Gantt = (function () {
'use strict';
const YEAR = 'year';
const MONTH = 'month';
const DAY = 'day';
const HOUR = 'hour';
const MINUTE = 'minute';
const SECOND = 'second';
const MILLISECOND = 'millisecond';
const month_names = {
en: [
'January',
'February',
'March',
'April',
'May',
'June',
'July',
'August',
'September',
'October',
'November',
'December'
],
es: [
'Enero',
'Febrero',
'Marzo',
'Abril',
'Mayo',
'Junio',
'Julio',
'Agosto',
'Septiembre',
'Octubre',
'Noviembre',
'Diciembre'
],
ru: [
'Январь',
'Февраль',
'Март',
'Апрель',
'Май',
'Июнь',
'Июль',
'Август',
'Сентябрь',
'Октябрь',
'Ноябрь',
'Декабрь'
],
ptBr: [
'Janeiro',
'Fevereiro',
'Março',
'Abril',
'Maio',
'Junho',
'Julho',
'Agosto',
'Setembro',
'Outubro',
'Novembro',
'Dezembro'
],
fr: [
'Janvier',
'Février',
'Mars',
'Avril',
'Mai',
'Juin',
'Juillet',
'Août',
'Septembre',
'Octobre',
'Novembre',
'Décembre'
],
tr: [
'Ocak',
'Şubat',
'Mart',
'Nisan',
'Mayıs',
'Haziran',
'Temmuz',
'Ağustos',
'Eylül',
'Ekim',
'Kasım',
'Aralık'
],
zh: [
'一月',
'二月',
'三月',
'四月',
'五月',
'六月',
'七月',
'八月',
'九月',
'十月',
'十一月',
'十二月'
]
};
var date_utils = {
parse(date, date_separator = '-', time_separator = /[.:]/) {
if (date instanceof Date) {
return date;
}
if (typeof date === 'string') {
let date_parts, time_parts;
const parts = date.split(' ');
date_parts = parts[0]
.split(date_separator)
.map(val => parseInt(val, 10));
time_parts = parts[1] && parts[1].split(time_separator);
// month is 0 indexed
date_parts[1] = date_parts[1] - 1;
let vals = date_parts;
if (time_parts && time_parts.length) {
if (time_parts.length == 4) {
time_parts[3] = '0.' + time_parts[3];
time_parts[3] = parseFloat(time_parts[3]) * 1000;
}
vals = vals.concat(time_parts);
}
return new Date(...vals);
}
},
to_string(date, with_time = false) {
if (!(date instanceof Date)) {
throw new TypeError('Invalid argument type');
}
const vals = this.get_date_values(date).map((val, i) => {
if (i === 1) {
// add 1 for month
val = val + 1;
}
if (i === 6) {
return padStart(val + '', 3, '0');
}
return padStart(val + '', 2, '0');
});
const date_string = `${vals[0]}-${vals[1]}-${vals[2]}`;
const time_string = `${vals[3]}:${vals[4]}:${vals[5]}.${vals[6]}`;
return date_string + (with_time ? ' ' + time_string : '');
},
format(date, format_string = 'YYYY-MM-DD HH:mm:ss.SSS', lang = 'en') {
const values = this.get_date_values(date).map(d => padStart(d, 2, 0));
const format_map = {
YYYY: values[0],
MM: padStart(+values[1] + 1, 2, 0),
DD: values[2],
HH: values[3],
mm: values[4],
ss: values[5],
SSS:values[6],
D: values[2],
MMMM: month_names[lang][+values[1]],
MMM: month_names[lang][+values[1]]
};
let str = format_string;
const formatted_values = [];
Object.keys(format_map)
.sort((a, b) => b.length - a.length) // big string first
.forEach(key => {
if (str.includes(key)) {
str = str.replace(key, `$${formatted_values.length}`);
formatted_values.push(format_map[key]);
}
});
formatted_values.forEach((value, i) => {
str = str.replace(`$${i}`, value);
});
return str;
},
diff(date_a, date_b, scale = DAY) {
let milliseconds, seconds, hours, minutes, days, months, years;
milliseconds = date_a - date_b;
seconds = milliseconds / 1000;
minutes = seconds / 60;
hours = minutes / 60;
days = hours / 24;
months = days / 30;
years = months / 12;
if (!scale.endsWith('s')) {
scale += 's';
}
return Math.floor(
{
milliseconds,
seconds,
minutes,
hours,
days,
months,
years
}[scale]
);
},
today() {
const vals = this.get_date_values(new Date()).slice(0, 3);
return new Date(...vals);
},
now() {
return new Date();
},
add(date, qty, scale) {
qty = parseInt(qty, 10);
const vals = [
date.getFullYear() + (scale === YEAR ? qty : 0),
date.getMonth() + (scale === MONTH ? qty : 0),
date.getDate() + (scale === DAY ? qty : 0),
date.getHours() + (scale === HOUR ? qty : 0),
date.getMinutes() + (scale === MINUTE ? qty : 0),
date.getSeconds() + (scale === SECOND ? qty : 0),
date.getMilliseconds() + (scale === MILLISECOND ? qty : 0)
];
return new Date(...vals);
},
start_of(date, scale) {
const scores = {
[YEAR]: 6,
[MONTH]: 5,
[DAY]: 4,
[HOUR]: 3,
[MINUTE]: 2,
[SECOND]: 1,
[MILLISECOND]: 0
};
function should_reset(_scale) {
const max_score = scores[scale];
return scores[_scale] <= max_score;
}
const vals = [
date.getFullYear(),
should_reset(YEAR) ? 0 : date.getMonth(),
should_reset(MONTH) ? 1 : date.getDate(),
should_reset(DAY) ? 0 : date.getHours(),
should_reset(HOUR) ? 0 : date.getMinutes(),
should_reset(MINUTE) ? 0 : date.getSeconds(),
should_reset(SECOND) ? 0 : date.getMilliseconds()
];
return new Date(...vals);
},
clone(date) {
return new Date(...this.get_date_values(date));
},
get_date_values(date) {
return [
date.getFullYear(),
date.getMonth(),
date.getDate(),
date.getHours(),
date.getMinutes(),
date.getSeconds(),
date.getMilliseconds()
];
},
get_days_in_month(date) {
const no_of_days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
const month = date.getMonth();
if (month !== 1) {
return no_of_days[month];
}
// Feb
const year = date.getFullYear();
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
return 29;
}
return 28;
}
};
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart
function padStart(str, targetLength, padString) {
str = str + '';
targetLength = targetLength >> 0;
padString = String(typeof padString !== 'undefined' ? padString : ' ');
if (str.length > targetLength) {
return String(str);
} else {
targetLength = targetLength - str.length;
if (targetLength > padString.length) {
padString += padString.repeat(targetLength / padString.length);
}
return padString.slice(0, targetLength) + String(str);
}
}
function $(expr, con) {
return typeof expr === 'string'
? (con || document).querySelector(expr)
: expr || null;
}
function createSVG(tag, attrs) {
const elem = document.createElementNS('http://www.w3.org/2000/svg', tag);
for (let attr in attrs) {
if (attr === 'append_to') {
const parent = attrs.append_to;
parent.appendChild(elem);
} else if (attr === 'innerHTML') {
elem.innerHTML = attrs.innerHTML;
} else {
elem.setAttribute(attr, attrs[attr]);
}
}
return elem;
}
function animateSVG(svgElement, attr, from, to) {
const animatedSvgElement = getAnimationElement(svgElement, attr, from, to);
if (animatedSvgElement === svgElement) {
// triggered 2nd time programmatically
// trigger artificial click event
const event = document.createEvent('HTMLEvents');
event.initEvent('click', true, true);
event.eventName = 'click';
animatedSvgElement.dispatchEvent(event);
}
}
function getAnimationElement(
svgElement,
attr,
from,
to,
dur = '0.4s',
begin = '0.1s'
) {
const animEl = svgElement.querySelector('animate');
if (animEl) {
$.attr(animEl, {
attributeName: attr,
from,
to,
dur,
begin: 'click + ' + begin // artificial click
});
return svgElement;
}
const animateElement = createSVG('animate', {
attributeName: attr,
from,
to,
dur,
begin,
calcMode: 'spline',
values: from + ';' + to,
keyTimes: '0; 1',
keySplines: cubic_bezier('ease-out')
});
svgElement.appendChild(animateElement);
return svgElement;
}
function cubic_bezier(name) {
return {
ease: '.25 .1 .25 1',
linear: '0 0 1 1',
'ease-in': '.42 0 1 1',
'ease-out': '0 0 .58 1',
'ease-in-out': '.42 0 .58 1'
}[name];
}
$.on = (element, event, selector, callback) => {
if (!callback) {
callback = selector;
$.bind(element, event, callback);
} else {
$.delegate(element, event, selector, callback);
}
};
$.off = (element, event, handler) => {
element.removeEventListener(event, handler);
};
$.bind = (element, event, callback) => {
event.split(/\s+/).forEach(function(event) {
element.addEventListener(event, callback);
});
};
$.delegate = (element, event, selector, callback) => {
element.addEventListener(event, function(e) {
const delegatedTarget = e.target.closest(selector);
if (delegatedTarget) {
e.delegatedTarget = delegatedTarget;
callback.call(this, e, delegatedTarget);
}
});
};
$.closest = (selector, element) => {
if (!element) return null;
if (element.matches(selector)) {
return element;
}
return $.closest(selector, element.parentNode);
};
$.attr = (element, attr, value) => {
if (!value && typeof attr === 'string') {
return element.getAttribute(attr);
}
if (typeof attr === 'object') {
for (let key in attr) {
$.attr(element, key, attr[key]);
}
return;
}
element.setAttribute(attr, value);
};
class Bar {
constructor(gantt, task) {
this.set_defaults(gantt, task);
this.prepare();
this.draw();
this.bind();
}
set_defaults(gantt, task) {
this.action_completed = false;
this.gantt = gantt;
this.task = task;
}
prepare() {
this.prepare_values();
this.prepare_helpers();
}
prepare_values() {
this.invalid = this.task.invalid;
this.height = this.gantt.options.bar_height;
this.x = this.compute_x();
this.y = this.compute_y();
this.corner_radius = this.gantt.options.bar_corner_radius;
this.duration =
date_utils.diff(this.task._end, this.task._start, 'hour') /
this.gantt.options.step;
this.width = this.gantt.options.column_width * this.duration;
this.progress_width =
this.gantt.options.column_width *
this.duration *
(this.task.progress / 100) || 0;
this.group = createSVG('g', {
class: 'bar-wrapper ' + (this.task.custom_class || ''),
'data-id': this.task.id
});
this.bar_group = createSVG('g', {
class: 'bar-group',
append_to: this.group
});
this.handle_group = createSVG('g', {
class: 'handle-group',
append_to: this.group
});
}
prepare_helpers() {
SVGElement.prototype.getX = function() {
return +this.getAttribute('x');
};
SVGElement.prototype.getY = function() {
return +this.getAttribute('y');
};
SVGElement.prototype.getWidth = function() {
return +this.getAttribute('width');
};
SVGElement.prototype.getHeight = function() {
return +this.getAttribute('height');
};
SVGElement.prototype.getEndX = function() {
return this.getX() + this.getWidth();
};
}
draw() {
this.draw_bar();
this.draw_progress_bar();
this.draw_label();
this.draw_resize_handles();
}
draw_bar() {
this.$bar = createSVG('rect', {
x: this.x,
y: this.y,
width: this.width,
height: this.height,
rx: this.corner_radius,
ry: this.corner_radius,
class: 'bar',
append_to: this.bar_group
});
//apply custom background color
if (this.task.bg_color) {
this.$bar.style = "fill: " + this.task.bg_color;
}
// this.$bar = createSVG('rect', this.$bar);
animateSVG(this.$bar, 'width', 0, this.width);
if (this.invalid) {
this.$bar.classList.add('bar-invalid');
}
}
draw_progress_bar() {
if (this.invalid) return;
this.$bar_progress = createSVG('rect', {
x: this.x,
y: this.y,
width: this.progress_width,
height: this.height,
rx: this.corner_radius,
ry: this.corner_radius,
class: 'bar-progress',
append_to: this.bar_group
});
animateSVG(this.$bar_progress, 'width', 0, this.progress_width);
}
draw_label() {
createSVG('text', {
x: this.x + this.width / 2,
y: this.y + this.height / 2,
innerHTML: this.task.name,
class: 'bar-label',
append_to: this.bar_group
});
// labels get BBox in the next tick
requestAnimationFrame(() => this.update_label_position());
}
draw_resize_handles() {
if (this.invalid) return;
const bar = this.$bar;
const handle_width = 8;
createSVG('rect', {
x: bar.getX() + bar.getWidth() - 9,
y: bar.getY() + 1,
width: handle_width,
height: this.height - 2,
rx: this.corner_radius,
ry: this.corner_radius,
class: 'handle right',
append_to: this.handle_group
});
createSVG('rect', {
x: bar.getX() + 1,
y: bar.getY() + 1,
width: handle_width,
height: this.height - 2,
rx: this.corner_radius,
ry: this.corner_radius,
class: 'handle left',
append_to: this.handle_group
});
if (this.task.progress && this.task.progress < 100) {
this.$handle_progress = createSVG('polygon', {
points: this.get_progress_polygon_points().join(','),
class: 'handle progress',
append_to: this.handle_group
});
}
}
get_progress_polygon_points() {
const bar_progress = this.$bar_progress;
return [
bar_progress.getEndX() - 5,
bar_progress.getY() + bar_progress.getHeight(),
bar_progress.getEndX() + 5,
bar_progress.getY() + bar_progress.getHeight(),
bar_progress.getEndX(),
bar_progress.getY() + bar_progress.getHeight() - 8.66
];
}
bind() {
if (this.invalid) return;
this.setup_click_event();
}
setup_click_event() {
$.on(this.group, 'focus ' + this.gantt.options.popup_trigger, e => {
if (this.action_completed) {
// just finished a move action, wait for a few seconds
return;
}
this.show_popup();
this.gantt.unselect_all();
this.group.classList.add('active');
});
$.on(this.group, 'dblclick', e => {
if (this.action_completed) {
// just finished a move action, wait for a few seconds
return;
}
this.gantt.trigger_event('click', [this.task]);
});
}
show_popup() {
if (this.gantt.bar_being_dragged) return;
const start_date = date_utils.format(this.task._start, 'MMM D', this.gantt.options.language);
const end_date = date_utils.format(
date_utils.add(this.task._end, -1, 'second'),
'MMM D',
this.gantt.options.language
);
const subtitle = start_date + ' - ' + end_date;
this.gantt.show_popup({
target_element: this.$bar,
title: this.task.name,
subtitle: subtitle,
task: this.task,
});
}
update_bar_position({ x = null, width = null }) {
const bar = this.$bar;
if (x) {
// get all x values of parent task
const xs = this.task.dependencies.map(dep => {
return this.gantt.get_bar(dep).$bar.getX();
});
// child task must not go before parent
const valid_x = xs.reduce((prev, curr) => {
return x >= curr;
}, x);
if (!valid_x) {
width = null;
return;
}
this.update_attr(bar, 'x', x);
}
if (width && width >= this.gantt.options.column_width) {
this.update_attr(bar, 'width', width);
}
this.update_label_position();
this.update_handle_position();
this.update_progressbar_position();
this.update_arrow_position();
}
date_changed() {
let changed = false;
const { new_start_date, new_end_date } = this.compute_start_end_date();
if (Number(this.task._start) !== Number(new_start_date)) {
changed = true;
this.task._start = new_start_date;
}
if (Number(this.task._end) !== Number(new_end_date)) {
changed = true;
this.task._end = new_end_date;
}
if (!changed) return;
this.gantt.trigger_event('date_change', [
this.task,
new_start_date,
date_utils.add(new_end_date, -1, 'second')
]);
}
progress_changed() {
const new_progress = this.compute_progress();
this.task.progress = new_progress;
this.gantt.trigger_event('progress_change', [this.task, new_progress]);
}
set_action_completed() {
this.action_completed = true;
setTimeout(() => (this.action_completed = false), 1000);
}
compute_start_end_date() {
const bar = this.$bar;
const x_in_units = bar.getX() / this.gantt.options.column_width;
const new_start_date = date_utils.add(
this.gantt.gantt_start,
x_in_units * this.gantt.options.step,
'hour'
);
const width_in_units = bar.getWidth() / this.gantt.options.column_width;
const new_end_date = date_utils.add(
new_start_date,
width_in_units * this.gantt.options.step,
'hour'
);
return { new_start_date, new_end_date };
}
compute_progress() {
const progress =
this.$bar_progress.getWidth() / this.$bar.getWidth() * 100;
return parseInt(progress, 10);
}
compute_x() {
const { step, column_width } = this.gantt.options;
const task_start = this.task._start;
const gantt_start = this.gantt.gantt_start;
const diff = date_utils.diff(task_start, gantt_start, 'hour');
let x = diff / step * column_width;
if (this.gantt.view_is('Month')) {
const diff = date_utils.diff(task_start, gantt_start, 'day');
x = diff * column_width / 30;
}
return x;
}
compute_y() {
return (
this.gantt.options.header_height +
this.gantt.options.padding +
this.task._index * (this.height + this.gantt.options.padding)
);
}
get_snap_position(dx) {
let odx = dx,
rem,
position;
if (this.gantt.view_is('Week')) {
rem = dx % (this.gantt.options.column_width / 7);
position =
odx -
rem +
(rem < this.gantt.options.column_width / 14
? 0
: this.gantt.options.column_width / 7);
} else if (this.gantt.view_is('Month')) {
rem = dx % (this.gantt.options.column_width / 30);
position =
odx -
rem +
(rem < this.gantt.options.column_width / 60
? 0
: this.gantt.options.column_width / 30);
} else {
rem = dx % this.gantt.options.column_width;
position =
odx -
rem +
(rem < this.gantt.options.column_width / 2
? 0
: this.gantt.options.column_width);
}
return position;
}
update_attr(element, attr, value) {
value = +value;
if (!isNaN(value)) {
element.setAttribute(attr, value);
}
return element;
}
update_progressbar_position() {
this.$bar_progress.setAttribute('x', this.$bar.getX());
this.$bar_progress.setAttribute(
'width',
this.$bar.getWidth() * (this.task.progress / 100)
);
}
update_label_position() {
const bar = this.$bar,
label = this.group.querySelector('.bar-label');
if (label.getBBox().width > bar.getWidth()) {
label.classList.add('big');
label.setAttribute('x', bar.getX() + bar.getWidth() + 5);
} else {
label.classList.remove('big');
label.setAttribute('x', bar.getX() + bar.getWidth() / 2);
}
}
update_handle_position() {
const bar = this.$bar;
this.handle_group
.querySelector('.handle.left')
.setAttribute('x', bar.getX() + 1);
this.handle_group
.querySelector('.handle.right')
.setAttribute('x', bar.getEndX() - 9);
const handle = this.group.querySelector('.handle.progress');
handle &&
handle.setAttribute('points', this.get_progress_polygon_points());
}
update_arrow_position() {
this.arrows = this.arrows || [];
for (let arrow of this.arrows) {
arrow.update();
}
}
}
class Arrow {
constructor(gantt, from_task, to_task) {
this.gantt = gantt;
this.from_task = from_task;
this.to_task = to_task;
this.calculate_path();
this.draw();
}
calculate_path() {
let start_x =
this.from_task.$bar.getX() + this.from_task.$bar.getWidth() / 2;
const condition = () =>
this.to_task.$bar.getX() < start_x + this.gantt.options.padding &&
start_x > this.from_task.$bar.getX() + this.gantt.options.padding;
while (condition()) {
start_x -= 10;
}
const start_y =
this.gantt.options.header_height +
this.gantt.options.bar_height +
(this.gantt.options.padding + this.gantt.options.bar_height) *
this.from_task.task._index +
this.gantt.options.padding;
const end_x = this.to_task.$bar.getX() - this.gantt.options.padding / 2;
const end_y =
this.gantt.options.header_height +
this.gantt.options.bar_height / 2 +
(this.gantt.options.padding + this.gantt.options.bar_height) *
this.to_task.task._index +
this.gantt.options.padding;
const from_is_below_to =
this.from_task.task._index > this.to_task.task._index;
const curve = this.gantt.options.arrow_curve;
const clockwise = from_is_below_to ? 1 : 0;
const curve_y = from_is_below_to ? -curve : curve;
const offset = from_is_below_to
? end_y + this.gantt.options.arrow_curve
: end_y - this.gantt.options.arrow_curve;
this.path = `
M ${start_x} ${start_y}
V ${offset}
a ${curve} ${curve} 0 0 ${clockwise} ${curve} ${curve_y}
L ${end_x} ${end_y}
m -5 -5
l 5 5
l -5 5`;
if (
this.to_task.$bar.getX() <
this.from_task.$bar.getX() + this.gantt.options.padding
) {
const down_1 = this.gantt.options.padding / 2 - curve;
const down_2 =
this.to_task.$bar.getY() +
this.to_task.$bar.getHeight() / 2 -
curve_y;
const left = this.to_task.$bar.getX() - this.gantt.options.padding;
this.path = `
M ${start_x} ${start_y}
v ${down_1}
a ${curve} ${curve} 0 0 1 -${curve} ${curve}
H ${left}
a ${curve} ${curve} 0 0 ${clockwise} -${curve} ${curve_y}
V ${down_2}
a ${curve} ${curve} 0 0 ${clockwise} ${curve} ${curve_y}
L ${end_x} ${end_y}
m -5 -5
l 5 5
l -5 5`;
}
}
draw() {
this.element = createSVG('path', {
d: this.path,
'data-from': this.from_task.task.id,
'data-to': this.to_task.task.id
});
}
update() {
this.calculate_path();
this.element.setAttribute('d', this.path);
}
}
class Popup {
constructor(parent, custom_html) {
this.parent = parent;
this.custom_html = custom_html;
this.make();
}
make() {
this.parent.innerHTML = `
<div class="title"></div>
<div class="subtitle"></div>
<div class="pointer"></div>
`;
this.hide();
this.title = this.parent.querySelector('.title');
this.subtitle = this.parent.querySelector('.subtitle');
this.pointer = this.parent.querySelector('.pointer');
}
show(options) {
if (!options.target_element) {
throw new Error('target_element is required to show popup');
}
if (!options.position) {
options.position = 'left';
}
const target_element = options.target_element;
if (this.custom_html) {
let html = this.custom_html(options.task);
html += '<div class="pointer"></div>';
this.parent.innerHTML = html;
this.pointer = this.parent.querySelector('.pointer');
} else {
// set data
this.title.innerHTML = options.title;
this.subtitle.innerHTML = options.subtitle;
this.parent.style.width = this.parent.clientWidth + 'px';
}
// set position
let position_meta;
if (target_element instanceof HTMLElement) {
position_meta = target_element.getBoundingClientRect();
} else if (target_element instanceof SVGElement) {
position_meta = options.target_element.getBBox();
}
if (options.position === 'left') {
this.parent.style.left =
position_meta.x + (position_meta.width + 10) + 'px';
this.parent.style.top = position_meta.y + 'px';
this.pointer.style.transform = 'rotateZ(90deg)';
this.pointer.style.left = '-7px';
this.pointer.style.top = '2px';
}
// show
this.parent.style.opacity = 1;
}
hide() {
this.parent.style.opacity = 0;
}
}
const VIEW_MODE = {
QUARTER_DAY: 'Quarter Day',
HALF_DAY: 'Half Day',
DAY: 'Day',
WEEK: 'Week',
MONTH: 'Month',
YEAR: 'Year'
};
class Gantt {
constructor(wrapper, tasks, options) {
this.setup_wrapper(wrapper);
this.setup_options(options);
this.setup_tasks(tasks);
// initialize with default view mode
this.change_view_mode();
this.bind_events();
}
setup_wrapper(element) {
let svg_element, wrapper_element;
// CSS Selector is passed
if (typeof element === 'string') {
element = document.querySelector(element);
}
// get the SVGElement
if (element instanceof HTMLElement) {
wrapper_element = element;
svg_element = element.querySelector('svg');
} else if (element instanceof SVGElement) {
svg_element = element;
} else {
throw new TypeError(
'Frappé Gantt only supports usage of a string CSS selector,' +
" HTML DOM element or SVG DOM element for the 'element' parameter"
);
}
// svg element
if (!svg_element) {
// create it
this.$svg = createSVG('svg', {
append_to: wrapper_element,
class: 'gantt'
});
} else {
this.$svg = svg_element;
this.$svg.classList.add('gantt');
}
// wrapper element
this.$container = document.createElement('div');
this.$container.classList.add('gantt-container');
const parent_element = this.$svg.parentElement;
parent_element.appendChild(this.$container);
this.$container.appendChild(this.$svg);
// popup wrapper
this.popup_wrapper = document.createElement('div');
this.popup_wrapper.classList.add('popup-wrapper');
this.$container.appendChild(this.popup_wrapper);
}
setup_options(options) {
const default_options = {
header_height: 50,
column_width: 30,
step: 24,
view_modes: [...Object.values(VIEW_MODE)],
bar_height: 20,
bar_corner_radius: 3,
arrow_curve: 5,
padding: 18,
view_mode: 'Day',
date_format: 'YYYY-MM-DD',
popup_trigger: 'click',
custom_popup_html: null,
language: 'en'
};
this.options = Object.assign({}, default_options, options);
}
setup_tasks(tasks) {
// prepare tasks
this.tasks = tasks.map((task, i) => {
// convert to Date objects
task._start = date_utils.parse(task.start);
task._end = date_utils.parse(task.end);
// make task invalid if duration too large
if (date_utils.diff(task._end, task._start, 'year') > 10) {
task.end = null;
}
// cache index
task._index = i;
// invalid dates
if (!task.start && !task.end) {
const today = date_utils.today();
task._start = today;
task._end = date_utils.add(today, 2, 'day');
}
if (!task.start && task.end) {
task._start = date_utils.add(task._end, -2, 'day');
}
if (task.start && !task.end) {
task._end = date_utils.add(task._start, 2, 'day');
}
// if hours is not set, assume the last day is full day
// e.g: 2018-09-09 becomes 2018-09-09 23:59:59
const task_end_values = date_utils.get_date_values(task._end);
if (task_end_values.slice(3).every(d => d === 0)) {
task._end = date_utils.add(task._end, 24, 'hour');
}
// invalid flag
if (!task.start || !task.end) {
task.invalid = true;
}
// dependencies
if (typeof task.dependencies === 'string' || !task.dependencies) {
let deps = [];
if (task.dependencies) {
deps = task.dependencies
.split(',')
.map(d => d.trim())
.filter(d => d);
}
task.dependencies = deps;
}
// uids
if (!task.id) {
task.id = generate_id(task);
}
return task;
});
this.setup_dependencies();
}
setup_dependencies() {
this.dependency_map = {};
for (let t of this.tasks) {
for (let d of t.dependencies) {
this.dependency_map[d] = this.dependency_map[d] || [];
this.dependency_map[d].push(t.id);
}
}
}
refresh(tasks) {
this.setup_tasks(tasks);
this.change_view_mode();
}
change_view_mode(mode = this.options.view_mode) {
this.update_view_scale(mode);
this.setup_dates();
this.render();
// fire viewmode_change event
this.trigger_event('view_change', [mode]);
}
update_view_scale(view_mode) {
this.options.view_mode = view_mode;
if (view_mode === VIEW_MODE.DAY) {
this.options.step = 24;
this.options.column_width = 38;
} else if (view_mode === VIEW_MODE.HALF_DAY) {
this.options.step = 24 / 2;
this.options.column_width = 38;
} else if (view_mode === VIEW_MODE.QUARTER_DAY) {
this.options.step = 24 / 4;
this.options.column_width = 38;
} else if (view_mode === VIEW_MODE.WEEK) {
this.options.step = 24 * 7;
this.options.column_width = 140;
} else if (view_mode === VIEW_MODE.MONTH) {
this.options.step = 24 * 30;
this.options.column_width = 120;
} else if (view_mode === VIEW_MODE.YEAR) {
this.options.step = 24 * 365;
this.options.column_width = 120;
}
}
setup_dates() {
this.setup_gantt_dates();
this.setup_date_values();
}
setup_gantt_dates() {
this.gantt_start = this.gantt_end = null;
for (let task of this.tasks) {
// set global start and end date
if (!this.gantt_start || task._start < this.gantt_start) {
this.gantt_start = task._start;
}
if (!this.gantt_end || task._end > this.gantt_end) {
this.gantt_end = task._end;
}
}
this.gantt_start = date_utils.start_of(this.gantt_start, 'day');
this.gantt_end = date_utils.start_of(this.gantt_end, 'day');
// add date padding on both sides
if (this.view_is([VIEW_MODE.QUARTER_DAY, VIEW_MODE.HALF_DAY])) {
this.gantt_start = date_utils.add(this.gantt_start, -7, 'day');
this.gantt_end = date_utils.add(this.gantt_end, 7, 'day');
} else if (this.view_is(VIEW_MODE.MONTH)) {
this.gantt_start = date_utils.start_of(this.gantt_start, 'year');
this.gantt_end = date_utils.add(this.gantt_end, 1, 'year');
} else if (this.view_is(VIEW_MODE.YEAR)) {
this.gantt_start = date_utils.add(this.gantt_start, -2, 'year');
this.gantt_end = date_utils.add(this.gantt_end, 2, 'year');
} else {
this.gantt_start = date_utils.add(this.gantt_start, -1, 'month');
this.gantt_end = date_utils.add(this.gantt_end, 1, 'month');
}
}
setup_date_values() {
this.dates = [];
let cur_date = null;
while (cur_date === null || cur_date < this.gantt_end) {
if (!cur_date) {
cur_date = date_utils.clone(this.gantt_start);
} else {
if (this.view_is(VIEW_MODE.YEAR)) {
cur_date = date_utils.add(cur_date, 1, 'year');
} else if (this.view_is(VIEW_MODE.MONTH)) {
cur_date = date_utils.add(cur_date, 1, 'month');
} else {
cur_date = date_utils.add(
cur_date,
this.options.step,
'hour'
);
}
}
this.dates.push(cur_date);
}
}
bind_events() {
this.bind_grid_click();
this.bind_bar_events();
}
render() {
this.clear();
this.setup_layers();
this.make_grid();
this.make_dates();
this.make_bars();
this.make_arrows();
this.map_arrows_on_bars();
this.set_width();
this.set_scroll_position();
}
setup_layers() {
this.layers = {};
const layers = ['grid', 'date', 'arrow', 'progress', 'bar', 'details'];
// make group layers
for (let layer of layers) {
this.layers[layer] = createSVG('g', {
class: layer,
append_to: this.$svg
});
}
}
make_grid() {
this.make_grid_background();
this.make_grid_rows();
this.make_grid_header();
this.make_grid_ticks();
this.make_grid_highlights();
}
make_grid_background() {
const grid_width = this.dates.length * this.options.column_width;
const grid_height =
this.options.header_height +
this.options.padding +
(this.options.bar_height + this.options.padding) *
this.tasks.length;
createSVG('rect', {
x: 0,
y: 0,
width: grid_width,
height: grid_height,
class: 'grid-background',
append_to: this.layers.grid
});
$.attr(this.$svg, {
height: grid_height + this.options.padding + 100,
width: '100%'
});
}
make_grid_rows() {
const rows_layer = createSVG('g', { append_to: this.layers.grid });
const lines_layer = createSVG('g', { append_to: this.layers.grid });
const row_width = this.dates.length * this.options.column_width;
const row_height = this.options.bar_height + this.options.padding;
let row_y = this.options.header_height + this.options.padding / 2;
for (let task of this.tasks) {
createSVG('rect', {
x: 0,
y: row_y,
width: row_width,
height: row_height,
class: 'grid-row',
append_to: rows_layer
});
createSVG('line', {
x1: 0,
y1: row_y + row_height,
x2: row_width,
y2: row_y + row_height,
class: 'row-line',
append_to: lines_layer
});
row_y += this.options.bar_height + this.options.padding;
}
}
make_grid_header() {
const header_width = this.dates.length * this.options.column_width;
const header_height = this.options.header_height + 10;
createSVG('rect', {
x: 0,
y: 0,
width: header_width,
height: header_height,
class: 'grid-header',
append_to: this.layers.grid
});
}
make_grid_ticks() {
let tick_x = 0;
let tick_y = this.options.header_height + this.options.padding / 2;
let tick_height =
(this.options.bar_height + this.options.padding) *
this.tasks.length;
for (let date of this.dates) {
let tick_class = 'tick';
// thick tick for monday
if (this.view_is(VIEW_MODE.DAY) && date.getDate() === 1) {
tick_class += ' thick';
}
// thick tick for first week
if (
this.view_is(VIEW_MODE.WEEK) &&
date.getDate() >= 1 &&
date.getDate() < 8
) {
tick_class += ' thick';
}
// thick ticks for quarters
if (this.view_is(VIEW_MODE.MONTH) && (date.getMonth() + 1) % 3 === 0) {
tick_class += ' thick';
}
createSVG('path', {
d: `M ${tick_x} ${tick_y} v ${tick_height}`,
class: tick_class,
append_to: this.layers.grid
});
if (this.view_is(VIEW_MODE.MONTH)) {
tick_x +=
date_utils.get_days_in_month(date) *
this.options.column_width /
30;
} else {
tick_x += this.options.column_width;
}
}
}
make_grid_highlights() {
// highlight today's date
if (this.view_is(VIEW_MODE.DAY)) {
const x =
date_utils.diff(date_utils.today(), this.gantt_start, 'hour') /
this.options.step *
this.options.column_width;
const y = 0;
const width = this.options.column_width;
const height =
(this.options.bar_height + this.options.padding) *
this.tasks.length +
this.options.header_height +
this.options.padding / 2;
createSVG('rect', {
x,
y,
width,
height,
class: 'today-highlight',
append_to: this.layers.grid
});
}
}
make_dates() {
for (let date of this.get_dates_to_draw()) {
createSVG('text', {
x: date.lower_x,
y: date.lower_y,
innerHTML: date.lower_text,
class: 'lower-text',
append_to: this.layers.date
});
if (date.upper_text) {
const $upper_text = createSVG('text', {
x: date.upper_x,
y: date.upper_y,
innerHTML: date.upper_text,
class: 'upper-text',
append_to: this.layers.date
});
// remove out-of-bound dates
if (
$upper_text.getBBox().x2 > this.layers.grid.getBBox().width
) {
$upper_text.remove();
}
}
}
}
get_dates_to_draw() {
let last_date = null;
const dates = this.dates.map((date, i) => {
const d = this.get_date_info(date, last_date, i);
last_date = date;
return d;
});
return dates;
}
get_date_info(date, last_date, i) {
if (!last_date) {
last_date = date_utils.add(date, 1, 'year');
}
const date_text = {
'Quarter Day_lower': date_utils.format(
date,
'HH',
this.options.language
),
'Half Day_lower': date_utils.format(
date,
'HH',
this.options.language
),
Day_lower:
date.getDate() !== last_date.getDate()
? date_utils.format(date, 'D', this.options.language)
: '',
Week_lower:
date.getMonth() !== last_date.getMonth()
? date_utils.format(date, 'D MMM', this.options.language)
: date_utils.format(date, 'D', this.options.language),
Month_lower: date_utils.format(date, 'MMMM', this.options.language),
Year_lower: date_utils.format(date, 'YYYY', this.options.language),
'Quarter Day_upper':
date.getDate() !== last_date.getDate()
? date_utils.format(date, 'D MMM', this.options.language)
: '',
'Half Day_upper':
date.getDate() !== last_date.getDate()
? date.getMonth() !== last_date.getMonth()
? date_utils.format(date, 'D MMM', this.options.language)
: date_utils.format(date, 'D', this.options.language)
: '',
Day_upper:
date.getMonth() !== last_date.getMonth()
? date_utils.format(date, 'MMMM', this.options.language)
: '',
Week_upper:
date.getMonth() !== last_date.getMonth()
? date_utils.format(date, 'MMMM', this.options.language)
: '',
Month_upper:
date.getFullYear() !== last_date.getFullYear()
? date_utils.format(date, 'YYYY', this.options.language)
: '',
Year_upper:
date.getFullYear() !== last_date.getFullYear()
? date_utils.format(date, 'YYYY', this.options.language)
: ''
};
const base_pos = {
x: i * this.options.column_width,
lower_y: this.options.header_height,
upper_y: this.options.header_height - 25
};
const x_pos = {
'Quarter Day_lower': this.options.column_width * 4 / 2,
'Quarter Day_upper': 0,
'Half Day_lower': this.options.column_width * 2 / 2,
'Half Day_upper': 0,
Day_lower: this.options.column_width / 2,
Day_upper: this.options.column_width * 30 / 2,
Week_lower: 0,
Week_upper: this.options.column_width * 4 / 2,
Month_lower: this.options.column_width / 2,
Month_upper: this.options.column_width * 12 / 2,
Year_lower: this.options.column_width / 2,
Year_upper: this.options.column_width * 30 / 2
};
return {
upper_text: date_text[`${this.options.view_mode}_upper`],
lower_text: date_text[`${this.options.view_mode}_lower`],
upper_x: base_pos.x + x_pos[`${this.options.view_mode}_upper`],
upper_y: base_pos.upper_y,
lower_x: base_pos.x + x_pos[`${this.options.view_mode}_lower`],
lower_y: base_pos.lower_y
};
}
make_bars() {
this.bars = this.tasks.map(task => {
const bar = new Bar(this, task);
this.layers.bar.appendChild(bar.group);
return bar;
});
}
make_arrows() {
this.arrows = [];
for (let task of this.tasks) {
let arrows = [];
arrows = task.dependencies
.map(task_id => {
const dependency = this.get_task(task_id);
if (!dependency) return;
const arrow = new Arrow(
this,
this.bars[dependency._index], // from_task
this.bars[task._index] // to_task
);
this.layers.arrow.appendChild(arrow.element);
return arrow;
})
.filter(Boolean); // filter falsy values
this.arrows = this.arrows.concat(arrows);
}
}
map_arrows_on_bars() {
for (let bar of this.bars) {
bar.arrows = this.arrows.filter(arrow => {
return (
arrow.from_task.task.id === bar.task.id ||
arrow.to_task.task.id === bar.task.id
);
});
}
}
set_width() {
const cur_width = this.$svg.getBoundingClientRect().width;
const actual_width = this.$svg
.querySelector('.grid .grid-row')
.getAttribute('width');
if (cur_width < actual_width) {
this.$svg.setAttribute('width', actual_width);
}
}
set_scroll_position() {
const parent_element = this.$svg.parentElement;
if (!parent_element) return;
const hours_before_first_task = date_utils.diff(
this.get_oldest_starting_date(),
this.gantt_start,
'hour'
);
const scroll_pos =
hours_before_first_task /
this.options.step *
this.options.column_width -
this.options.column_width;
parent_element.scrollLeft = scroll_pos;
}
bind_grid_click() {
$.on(
this.$svg,
this.options.popup_trigger,
'.grid-row, .grid-header',
() => {
this.unselect_all();
this.hide_popup();
}
);
}
bind_bar_events() {
let is_dragging = false;
let x_on_start = 0;
let y_on_start = 0;
let is_resizing_left = false;
let is_resizing_right = false;
let parent_bar_id = null;
let bars = []; // instanceof Bar
this.bar_being_dragged = null;
function action_in_progress() {
return is_dragging || is_resizing_left || is_resizing_right;
}
$.on(this.$svg, 'mousedown', '.bar-wrapper, .handle', (e, element) => {
const bar_wrapper = $.closest('.bar-wrapper', element);
var isTrueSet = (allowDrag === 'true');
if (element.classList.contains('left')) {
is_resizing_left = isTrueSet;
} else if (element.classList.contains('right')) {
is_resizing_right = isTrueSet;
} else if (element.classList.contains('bar-wrapper')) {
is_dragging = isTrueSet;
}
bar_wrapper.classList.add('active');
x_on_start = e.offsetX;
y_on_start = e.offsetY;
parent_bar_id = bar_wrapper.getAttribute('data-id');
const ids = [
parent_bar_id,
...this.get_all_dependent_tasks(parent_bar_id)
];
bars = ids.map(id => this.get_bar(id));
this.bar_being_dragged = parent_bar_id;
bars.forEach(bar => {
const $bar = bar.$bar;
$bar.ox = $bar.getX();
$bar.oy = $bar.getY();
$bar.owidth = $bar.getWidth();
$bar.finaldx = 0;
});
});
$.on(this.$svg, 'mousemove', e => {
if (!action_in_progress()) return;
const dx = e.offsetX - x_on_start;
const dy = e.offsetY - y_on_start;
bars.forEach(bar => {
const $bar = bar.$bar;
$bar.finaldx = this.get_snap_position(dx);
if (is_resizing_left) {
if (parent_bar_id === bar.task.id) {
bar.update_bar_position({
x: $bar.ox + $bar.finaldx,
width: $bar.owidth - $bar.finaldx
});
} else {
bar.update_bar_position({
x: $bar.ox + $bar.finaldx
});
}
} else if (is_resizing_right) {
if (parent_bar_id === bar.task.id) {
bar.update_bar_position({
width: $bar.owidth + $bar.finaldx
});
}
} else if (is_dragging) {
bar.update_bar_position({ x: $bar.ox + $bar.finaldx });
}
});
});
document.addEventListener('mouseup', e => {
if (is_dragging || is_resizing_left || is_resizing_right) {
bars.forEach(bar => bar.group.classList.remove('active'));
}
is_dragging = false;
is_resizing_left = false;
is_resizing_right = false;
});
$.on(this.$svg, 'mouseup', e => {
this.bar_being_dragged = null;
bars.forEach(bar => {
const $bar = bar.$bar;
if (!$bar.finaldx) return;
bar.date_changed();
bar.set_action_completed();
});
});
this.bind_bar_progress();
}
bind_bar_progress() {
let x_on_start = 0;
let y_on_start = 0;
let is_resizing = null;
let bar = null;
let $bar_progress = null;
let $bar = null;
$.on(this.$svg, 'mousedown', '.handle.progress', (e, handle) => {
is_resizing = true;
x_on_start = e.offsetX;
y_on_start = e.offsetY;
const $bar_wrapper = $.closest('.bar-wrapper', handle);
const id = $bar_wrapper.getAttribute('data-id');
bar = this.get_bar(id);
$bar_progress = bar.$bar_progress;
$bar = bar.$bar;
$bar_progress.finaldx = 0;
$bar_progress.owidth = $bar_progress.getWidth();
$bar_progress.min_dx = -$bar_progress.getWidth();
$bar_progress.max_dx = $bar.getWidth() - $bar_progress.getWidth();
});
$.on(this.$svg, 'mousemove', e => {
if (!is_resizing) return;
let dx = e.offsetX - x_on_start;
let dy = e.offsetY - y_on_start;
if (dx > $bar_progress.max_dx) {
dx = $bar_progress.max_dx;
}
if (dx < $bar_progress.min_dx) {
dx = $bar_progress.min_dx;
}
const $handle = bar.$handle_progress;
$.attr($bar_progress, 'width', $bar_progress.owidth + dx);
$.attr($handle, 'points', bar.get_progress_polygon_points());
$bar_progress.finaldx = dx;
});
$.on(this.$svg, 'mouseup', () => {
is_resizing = false;
if (!($bar_progress && $bar_progress.finaldx)) return;
bar.progress_changed();
bar.set_action_completed();
});
}
get_all_dependent_tasks(task_id) {
let out = [];
let to_process = [task_id];
while (to_process.length) {
const deps = to_process.reduce((acc, curr) => {
acc = acc.concat(this.dependency_map[curr]);
return acc;
}, []);
out = out.concat(deps);
to_process = deps.filter(d => !to_process.includes(d));
}
return out.filter(Boolean);
}
get_snap_position(dx) {
let odx = dx,
rem,
position;
if (this.view_is(VIEW_MODE.WEEK)) {
rem = dx % (this.options.column_width / 7);
position =
odx -
rem +
(rem < this.options.column_width / 14
? 0
: this.options.column_width / 7);
} else if (this.view_is(VIEW_MODE.MONTH)) {
rem = dx % (this.options.column_width / 30);
position =
odx -
rem +
(rem < this.options.column_width / 60
? 0
: this.options.column_width / 30);
} else {
rem = dx % this.options.column_width;
position =
odx -
rem +
(rem < this.options.column_width / 2
? 0
: this.options.column_width);
}
return position;
}
unselect_all() {
[...this.$svg.querySelectorAll('.bar-wrapper')].forEach(el => {
el.classList.remove('active');
});
}
view_is(modes) {
if (typeof modes === 'string') {
return this.options.view_mode === modes;
}
if (Array.isArray(modes)) {
return modes.some(mode => this.options.view_mode === mode);
}
return false;
}
get_task(id) {
return this.tasks.find(task => {
return task.id === id;
});
}
get_bar(id) {
return this.bars.find(bar => {
return bar.task.id === id;
});
}
show_popup(options) {
if (!this.popup) {
this.popup = new Popup(
this.popup_wrapper,
this.options.custom_popup_html
);
}
this.popup.show(options);
}
hide_popup() {
this.popup && this.popup.hide();
}
trigger_event(event, args) {
if (this.options['on_' + event]) {
this.options['on_' + event].apply(null, args);
}
}
/**
* Gets the oldest starting date from the list of tasks
*
* @returns Date
* @memberof Gantt
*/
get_oldest_starting_date() {
return this.tasks
.map(task => task._start)
.reduce(
(prev_date, cur_date) =>
cur_date <= prev_date ? cur_date : prev_date
);
}
/**
* Clear all elements from the parent svg element
*
* @memberof Gantt
*/
clear() {
this.$svg.innerHTML = '';
}
}
Gantt.VIEW_MODE = VIEW_MODE;
function generate_id(task) {
return (
task.name +
'_' +
Math.random()
.toString(36)
.slice(2, 12)
);
}
return Gantt;
}());
Zerion Mini Shell 1.0