Interactive Gantt Chart

.block

border: no

app.js

var data = [
  {
    id: 1,
    title: "Make significant improvements in the UI/UX Design Process Make significant improvements in the UI/UX Design Process", 
    start_date: "08/08/2016", 
    end_date: "03/09/2017",
    value: 67,
    term: "Short Term",
    completion_percentage: 29,
    color: "#770051",
  },
  {
    id: 2,
    title: "Make significant improvements in the UI/UX Design Process Make significant improvements in the UI/UX Design Process", 
    start_date: "11/01/2017", 
    end_date: "03/09/2018",
    value: 67,
    term: "Short Term",
    completion_percentage: 29,
    color: "#05f20c",
  },
  {
    id: 3,
    title: "Make significant improvements in the UI/UX Design Process Make significant improvements in the UI/UX Design Process", 
    start_date: "04/15/2017", 
    end_date: "06/14/2017",
    value: 67,
    term: "Short Term",
    completion_percentage: 29,
    color: "#914ae1",
  },
  {
    id: 4,
    title: "Make significant improvements in the UI/UX Design Process Make significant improvements in the UI/UX Design Process", 
    start_date: "06/11/2017", 
    end_date: "08/30/2017",
    value: 67,
    term: "Short Term",
    completion_percentage: 29,
    color: "#b79d3b",
  },
  {
    id: 5,
    title: "Make significant improvements in the UI/UX Design Process Make significant improvements in the UI/UX Design Process", 
    start_date: "07/31/2017", 
    end_date: "12/09/2017",
    value: 67,
    term: "Short Term",
    completion_percentage: 29,
    color: "#423db6",
  }
];

// data = [];

var cycles = [
  {
    id: 1,
    name: "Cycle 1", 
    start_date: "01/01/2017", 
    end_date: "02/28/2017",
  },
  {
    id: 2,
    name: "Cycle 2", 
    start_date: "05/01/2017", 
    end_date: "06/30/2017",
  },
  {
    id: 3,
    name: "Cycle 3", 
    start_date: "07/01/2017", 
    end_date: "10/30/2017",
  },
  {
    id: 3,
    name: "Cycle 4", 
    start_date: "10/01/2017", 
    end_date: "12/30/2017",
  }
]

var config = {
  data: data, // Your actuall data
  element: "#Chart", // The element for rendering the chart
  box_padding: 10, // Padding for the blocks
  // metrics: {type: "overall", years: [2016, 2017, 2018]}, // Type of gantt
  // metrics: {type: "sprint", year: 2017, cycles: cycles}, // Type of gantt
  metrics: {type: "yearly", year: 2017}, // Type of gantt
  // metrics: {type: "monthly", month: 'March 2017'}, // For Monthly Data
  // metrics: {type: "quarterly", months: ['January 2017','February 2017','March 2017', 'April 2017', 'May 2017', 'June 2017']}, // For quarterly or half yearly data
  onClick: function(data) {
    console.log(data); // Onclick of each node
  },
  onEmptyButtonClick: function() {
    console.log("Empty Clicked");
  },
  onAreaClick: function(location) {
    console.log("Clicked On" + location);
  }
}
ganttChart(config);

ganttChart.js

function ganttChart(config) {

    var data = config.data;
    var ELEMENT = d3.select(config.element),
        CHART_WIDTH = ELEMENT[0][0].offsetWidth,
        CHART_HEIGHT = d3.max([((data.length * 80) + 100), 300]),
        PROGRESSBAR_WIDTH = 200,
        PROGRESSBAR_BOUNDARY = 380,
        EMPTYBLOCK_WIDTH = ((80 * CHART_WIDTH) / 100),
        EMPTYBLOCK_HEIGHT = 150,
        BUTTON_COLOR = '#15bfd8';


    var currentDay = {
        start_date: moment().startOf('day').toDate(),
        end_date: moment().endOf('day').toDate(),
    }


    function goToNext() {
        switch (config.metrics.type) {
            case "yearly":
                config.metrics.year = config.metrics.year + 1;
                break;
            case "overall":
                for (var i = 0; i < config.metrics.years.length; i++) {
                    config.metrics.years[i] = config.metrics.years[i] + config.metrics.years.length;
                };
                break;
            case "sprint":
                break;
            case "monthly":
                config.metrics.month = moment(config.metrics.month, 'MMMM YYYY').add(1, 'months').format('MMMM YYYY');
                break;
            case "quarterly":
                months_count = config.metrics.months.length;
                for (var i = 0; i < months_count; i++) {
                    config.metrics.months[i] = moment(config.metrics.months[i], 'MMMM YYYY').add(months_count, 'months').format('MMMM YYYY');
                };
                break;
        }

        draw('next');
    }

    function goToPrevious() {
        switch (config.metrics.type) {
            case "yearly":
                config.metrics.year = config.metrics.year - 1;
                break;
            case "overall":
                for (var i = 0; i < config.metrics.years.length; i++) {
                    config.metrics.years[i] = config.metrics.years[i] - config.metrics.years.length;
                };
                break;
            case "sprint":
                break;
            case "monthly":
                config.metrics.month = moment(config.metrics.month, 'MMMM YYYY').subtract(1, 'months').format('MMMM YYYY');
                break;
            case "quarterly":
                months_count = config.metrics.months.length;
                for (var i = 0; i < months_count; i++) {
                    config.metrics.months[i] = moment(config.metrics.months[i], 'MMMM').subtract(months_count, 'months').format('MMMM YYYY');
                };
                break;
        }
        draw('previous');
    }

    draw('initial');

    function draw(state) {

        var date_boundary = [];
        var subheader_ranges = [];
        var months = [];
        var header_ranges = [];

        d3.select(config.element)[0][0].innerHTML = "";

        if (config.metrics.type == "monthly") {
            months = [config.metrics.month];
            header_ranges = getMonthsRange(months);
            subheader_ranges = getDaysRange(months);
        } else if (config.metrics.type == "overall") {
            var years = config.metrics.years,
                yearsRange = [];
            years.map(function(year) {
                months = months.concat(getMonthsOftheYear(year))
                yearsRange.push(getYearBoundary(year));
            })
            header_ranges = [{
                name: "Overall View",
                start_date: yearsRange[0].start_date,
                end_date: yearsRange[yearsRange.length - 1].end_date,
            }]
            subheader_ranges = yearsRange;

        } else {
            if (config.metrics.type == "quarterly") {
                months = config.metrics.months;
                subheader_ranges = getMonthsRange(months);
                var year = moment(config.metrics.months[0], 'MMMM YYYY').format('YYYY');


                header_ranges = [{
                    start_date: moment(config.metrics.months[0], 'MMMM YYYY').startOf('month').toDate(),
                    end_date: moment(config.metrics.months[config.metrics.months.length - 1], 'MMMM YYYY').endOf('month').toDate(),
                    name: year,
                }];

            } else if (config.metrics.type == "yearly") {
                months = getMonthsOftheYear(config.metrics.year);
                subheader_ranges = getMonthsRange(months);
                header_ranges = [getYearBoundary(config.metrics.year)];
            } else if (config.metrics.type == "sprint") {
                months = getMonthsOftheYear(config.metrics.year);
                subheader_ranges = config.metrics.cycles;
                header_ranges = [getYearBoundary(config.metrics.year)];

            }

        }

        date_boundary[0] = moment(months[0], 'MMM YYYY').startOf('month').toDate();
        date_boundary[1] = moment(months[months.length - 1], 'MMM YYYY').endOf('month').toDate();


        var margin = { top: 20, right: 50, bottom: 100, left: 50 },
            width = d3.max([CHART_WIDTH, 400]) - margin.left - margin.right,
            height = CHART_HEIGHT - margin.top - margin.bottom;

        var x = d3.time.scale()
            .domain(date_boundary)
            .range([0, width])


        var y = d3.scale.ordinal()
            .rangeRoundBands([0, height], 0.1);

        y.domain(data.map(function(d, i) {
            return i + 1;
        }));

        var xAxis = d3.svg.axis()
            .scale(x)
            .orient("bottom")
            .tickFormat(d3.time.format("%d/%m/%Y"));

        var yAxis = d3.svg.axis()
            .scale(y)
            .orient("left")
            .tickSize(0)
            .tickPadding(6);

        var first_section = ELEMENT
            .append('div')
            .attr('class', 'first_section')
            .style("height", 40)
            .append("svg")
            .attr("width", width + margin.left + margin.right)
            .attr("height", 40)
            .append('g')

        var second_section = ELEMENT
            .append('div')
            .attr('class', 'second_section')
            .style("height", 40)
            .append("svg")
            .attr("width", width + margin.left + margin.right)
            .attr("height", 40)
            .append('g')


        switch (state) {

            case 'initial':
                first_section
                    .attr("transform", "translate( " + margin.left + ", 30)")
                second_section
                    .attr("transform", "translate( " + margin.left + ", 0)")
                break;

            case 'next':
                second_section
                    .attr("transform", "translate( 1000, 0)")
                    .transition()
                    .attr("transform", "translate( " + margin.left + ", 0)")
                first_section
                    .attr("transform", "translate( 1000, 30)")
                    .transition()
                    .attr("transform", "translate( " + margin.left + ", 30)")
                break;

            case 'previous':
                second_section
                    .attr("transform", "translate( -1000, 0)")
                    .transition()
                    .attr("transform", "translate( " + margin.left + ", 0)")
                first_section
                    .attr("transform", "translate( -1000, 30)")
                    .transition()
                    .attr("transform", "translate( " + margin.left + ", 30)")
                break;

        }



        var DRAWAREA = ELEMENT
            .append('div')
            .attr('class', 'draw_area')
            .append("svg")
            .attr('class', 'DRAWAREA')
            .attr("width", width + margin.left + margin.right)
            .attr("height", height + margin.top + margin.bottom)

        var svg = DRAWAREA
            .append("g")
            .attr("transform", "translate(" + margin.left + "," + 0 + ")")
            .call(appendStartLine);

        var lines = svg.append('g').attr("transform", "translate(0,0)")

        var currentDayArea = svg.append('line')
            .attr('width', getActualWidth(currentDay))
            .attr('class', 'CurrentDay-Area')
            .attr("x1", x(new Date(currentDay.start_date)))
            .attr("x2", x(new Date(currentDay.start_date)))
            .attr("y1", 0)
            .attr("y2", height)


        var leftClickableArea = svg.append('rect')
            .attr('width', (width) / 2)
            .attr('height', height)
            .attr('fill', 'transparent')
            .on('click', function() {
                goToPrevious();
                config.onAreaClick('left');
            })

        var rightClickableArea = svg.append('rect')
            .attr('width', (width) / 2)
            .attr("transform", "translate(" + ((width) / 2) + " ,0)")
            .attr('height', height)
            .attr('fill', 'transparent')
            .on('click', function() {
                goToNext();
                config.onAreaClick('right');
            })


        first_section.selectAll(".bar")
            .data(header_ranges)
            .enter().append("text")
            .attr('class', 'first-title')
            .attr('y', -5)
            .attr("x", function(d) {
                return x(new Date(d.start_date)) + (getWidth(d) / 2);
            })
            .attr("width", function(d) {
                return getWidth(d);
            })
            .attr("height", y.rangeBand())
            .text(function(d) {
                return d.name
            });

        second_section
            .append("rect")
            .attr("x", x(new Date(date_boundary[0])))
            .attr("width", Math.abs(x(new Date(date_boundary[0])) - x(new Date(date_boundary[1]))))
            .attr("height", 40)
            .attr('class', 'Date-Block-Outline');


        second_section
            .append('g')
            .selectAll(".bar")
            .data(subheader_ranges)
            .enter()
            .append("rect")
            .attr("x", function(d) {
                return x(new Date(d.start_date))
            })
            .attr("width", function(d) {
                return getWidth(d);
            })
            .attr("height", 40)
            .attr('class', function(d) {
                return "Date-Block Date-" + moment(d.start_date).format("MMYYYY")
            });

        second_section
            .append('g')
            .selectAll(".bar")
            .data(subheader_ranges)
            .enter().append("text")
            .attr("x", function(d) {
                return (x(new Date(d.start_date)) + 10);
            })
            .attr("width", function(d) {
                return getWidth(d);
            })
            .attr('y', 25)
            .text(function(d) {
                return d.name;
            })
            .attr('class', function(d) {
                return "second-title Date Date-" + moment(d).format("MMYYYY")
            });


        lines.selectAll(".lines")
            .data(subheader_ranges)
            .enter()
            .append("line")
            .attr('class', 'date-line')
            .attr("x1", function(d) {
                return x(new Date(d.start_date));
            })
            .attr("x2", function(d) {
                return x(new Date(d.start_date));
            })
            .attr("y1", 0)
            .attr("y2", height)



        if (config.data.length == 0) {
            var EmptyBlockX = ((CHART_WIDTH / 2) - (EMPTYBLOCK_WIDTH / 2)),
                EMPTYBLOCK = DRAWAREA
                .append('g')
                .attr('class', 'EmptyMessageBlock')
                .attr("transform", "translate(" + EmptyBlockX + ", 20)")

            EMPTYBLOCK
                .append('rect')
                .attr('fill', '#fff')
                .attr('stroke', '#ccc')
                .attr('x', 0)
                .attr('width', EMPTYBLOCK_WIDTH)
                .attr('height', EMPTYBLOCK_HEIGHT)

            EMPTYBLOCK
                .append('text')
                .attr('class', 'EmptyMessage')
                .attr('font-size', 25)
                .attr('y', 25)
                .text("There is no objective yet, please click to add one");


            var EMPTRYBLOCK_BUTTON = EMPTYBLOCK
                .append('g')
                .attr('class', 'empty_button')
                .attr("transform", "translate(" + Math.abs((EMPTYBLOCK_WIDTH / 2) - 50) + ", 100)")
                .on('click', function(d) {
                    config.onEmptyButtonClick();
                })

            EMPTRYBLOCK_BUTTON
                .append('rect')
                .attr('width', 100)
                .attr('height', 35)
                .attr('rx', 4)
                .attr('ry', 4)
                .attr('fill', BUTTON_COLOR)

            EMPTRYBLOCK_BUTTON
                .append('text')
                .attr('fill', '#fff')
                .attr('y', 25)
                .attr('x', 10)
                .text("Click Here")

            var textBlock = EMPTYBLOCK.select('.EmptyMessage');

            var EmptyMessageWidth = textBlock.node().getComputedTextLength();
            EmptyMessageX = Math.abs((EMPTYBLOCK_WIDTH / 2) - (EmptyMessageWidth / 2));

            textBlock
                .attr("transform", "translate(" + EmptyMessageX + ",20)")
        }

        var bars = svg.append('g').attr("transform", "translate(0, 20)")

        var Blocks = bars.selectAll(".bar")
            .data(data)
            .enter()
            .append("g")
            .attr('class', 'Single--Block cp')
            .attr("transform", function(d, i) {
                return "translate(" + x(new Date(d.start_date)) + "," + 0 + ")";
            })
            .call(appendBar)

        Blocks
            .append('g')
            .attr('transform', function(d) {
                if (startsBefore(d) && isVisible(d)) {
                    var position = Math.abs(x(new Date(d.start_date)));
                    return "translate(" + position + ", 0)";
                } else {
                    return "translate(0, 0)";
                }
            })
            .call(appendTitle)
            .call(appendFooter)

        Blocks
            .on('click', function(d) {
                config.onClick(d);
            })
            .on('mouseover', function(d, i) {
                svg.selectAll('.Single--Block')
                    .style('opacity', function(b, i) {
                        return (d.id == b.id) ? 1 : 0.3;
                    })

                svg.selectAll('.start-lines, .end-lines')
                    .style('stroke-width', function(b, i) {
                        return (d.id == b.id) ? 3 : 1;
                    })
                    .style('opacity', function(b, i) {
                        return Number(d.id == b.id);
                    })

                svg.selectAll('.Single--Node')
                    .attr("width", function(b) {
                        if (d.id == b.id) {
                            if (startsBefore(d) || endsAfter(d)) {
                                if (getWidth(b) < 500) {
                                    return (getActualWidth(b) + (500 - getWidth(b)) + 10)
                                }
                            }
                            return ((d3.max([getActualWidth(b), 500])) + 10);
                        } else {
                            return getActualWidth(b)
                        }
                    })

                svg.selectAll('.ProgressBar')
                    .attr('opacity', function(b) {
                        return Number(d.id == b.id || getWidth(b) > 480)
                    })

                svg.selectAll('.Duration')
                    .attr('opacity', function(b) {
                        return Number(d.id == b.id || getWidth(b) > 200)
                    })

                svg.selectAll('.TermType')
                    .attr('opacity', function(b) {
                        return Number(d.id == b.id || getWidth(b) > 80)
                    })

                second_section.selectAll(".Date")
                    .style('fill', function(b, i) {
                        if (moment(b.start_date, "MM/DD/YYYY").isBetween(d.start_date, d.end_date, 'days') || moment(b.end_date, "MM/DD/YYYY").isBetween(d.start_date, d.end_date, 'days'))
                            return '#4894ff';

                    })
                second_section.selectAll(".Date-Block")
                    .style('fill', function(b, i) {
                        if (moment(b.start_date, "MM/DD/YYYY").isBetween(d.start_date, d.end_date, 'days') || moment(b.end_date, "MM/DD/YYYY").isBetween(d.start_date, d.end_date, 'days'))
                            return '#f0f6f9';

                    })

                d3.select(this).selectAll('.Title')
                    .text(function(d) {
                        return d.title
                    })

                d3.select(this).each(function(d, i) {
                    var width = ((d3.max([getWidth(d), 500])) + 10);
                    trimTitle(width, this, config.box_padding * 2)
                })
            })
            .on('mouseout', function(d, i) {
                svg.selectAll('.Single--Block')
                    .style('opacity', 1)
                svg.selectAll('.start-lines, .end-lines')
                    .style('stroke-width', 1)
                    .style('opacity', 1)

                svg.selectAll('.Single--Node')
                    .attr("width", function(b) {
                        return (getActualWidth(b) + 10);
                    })

                svg.selectAll('.ProgressBar')
                    .attr('opacity', function(b) {
                        return Number(getWidth(b) > PROGRESSBAR_BOUNDARY)
                    })

                svg.selectAll('.Duration')
                    .attr('opacity', function(b) {
                        return Number(getWidth(b) > 200)
                    })

                svg.selectAll('.TermType')
                    .attr('opacity', function(b) {
                        return Number(getWidth(b) > 80)
                    })
                second_section.selectAll(".Date")
                    .style('fill', '')
                second_section.selectAll(".Date-Block")
                    .style('fill', '')

                d3.select(this).each(function(d, i) {
                    var width = getWidth(d);
                    trimTitle(width, this, config.box_padding * 2)
                })
            })
            .each(function(d, i) {
                var width = getWidth(d);
                trimTitle(width, this, config.box_padding * 2)
            })


        function appendBar(d, i) {
            this.append('rect')
                .attr('class', 'Single--Node')
                .attr('rx', 5)
                .attr('ry', 5)
                .attr("height", 60)
                .attr("x", 0)
                .attr("y", function(d, i) {
                    return y(i + 1);
                })
                .attr("width", function(d) {
                    return (getActualWidth(d) + 10);
                })
        }

        function appendTitle(d, i) {
            this.append('text')
                .attr('class', 'Title')
                .attr("x", config.box_padding)
                .attr("y", function(d, i) {
                    return (y(i + 1) + 20)
                })
                .text(function(d) {
                    return d.title
                })
        }

        function appendFooter(d, i) {
            var footer = this.append('g')
                .attr("transform", function(d, i) {
                    var position = config.box_padding;
                    if (position < 10) {
                        position = 0;
                    }
                    return "translate(" + position + ", " + (y(i + 1) + 45) + ")";
                })
                .call(renderTerm)
                .call(renderDuration)
                .call(appendProgressBar)
        }

        function appendProgressBar(d, i) {
            this.append('rect')
                .attr('class', 'ProgressBar')
                .attr('fill', '#ddd')
                .attr('width', PROGRESSBAR_WIDTH)

            this.append('rect')
                .attr('class', 'ProgressBar ProgressBar-Fill')
                .attr('fill', 'red')
                .attr('width', function(d) {
                    var width = ((d.completion_percentage * PROGRESSBAR_WIDTH) / 100);
                    return width;
                })

            this.selectAll('.ProgressBar')
                .attr('rx', 5)
                .attr('ry', 5)
                .attr('y', -7)
                .attr('height', 7)
                .attr('x', 180)
                .attr('opacity', function(d) {
                    var width = getWidth(d);
                    return Number(width > PROGRESSBAR_BOUNDARY)
                })
        }

        function appendStartLine() {
            this.selectAll(".start-lines")
                .data(data)
                .enter()
                .append("line")
                .attr('class', 'start-lines')
                .attr('stroke', function(d) {
                    return d.color
                })
                .attr("x1", function(d) {
                    return x(new Date(d.start_date)) + 10;
                })
                .attr("x2", function(d) {
                    return x(new Date(d.start_date)) + 10;
                })
                .attr("y1", 0)
                .attr("y2", function(d, i) {
                    return (y(i + 1) + 20);
                })

            this.selectAll(".end-lines")
                .data(data)
                .enter()
                .append("line")
                .attr('stroke', function(d) {
                    return d.color
                })
                .attr('class', 'end-lines')
                .attr("x1", function(d) {
                    return x(new Date(d.end_date)) + 5;
                })
                .attr("x2", function(d) {
                    return x(new Date(d.end_date)) + 5;
                })
                .attr("y1", 0)
                .attr("y2", function(d, i) {
                    return (y(i + 1) + 20);
                })

        }

        function renderTerm(d, i) {
            this.append('text')
                .attr('class', 'TermType')
                .text(function(d) {
                    return d.term
                })
                .attr('opacity', function(d) {
                    return Number(getWidth(d) > 80)
                })
        }

        function renderDuration(d, i) {
            this.append('text')
                .attr('class', 'Duration')
                .attr('x', 80)
                .text(function(d) {
                    return getDuration(d)
                })
                .attr('opacity', function(d) {
                    return Number(getWidth(d) > 200)
                })
        }

        // function type(d) {
        //     d.value = +d.value;
        //     return d;
        // }

        function getDuration(d) {
            var start_date = moment(d.start_date, "MM/DD/YYYY").format("DD MMM"),
                end_date = moment(d.end_date, "MM/DD/YYYY").format("DD MMM");
            duration = start_date + " - " + end_date;
            return duration;
        }

        function trimTitle(width, node, padding) {

            var textBlock = d3.select(node).select('.Title')

            var textLength = textBlock.node().getComputedTextLength(),
                text = textBlock.text()
            while (textLength > (width - padding) && text.length > 0) {
                text = text.slice(0, -1);
                textBlock.text(text + '...');
                textLength = textBlock.node().getComputedTextLength();
            }
        }

        function getWidth(node) {
            if (endsAfter(node)) {
                width = Math.abs(x(new Date(date_boundary[1])) - x(new Date(node.start_date)));
            } else if (startsBefore(node)) {
                width = Math.abs(x(new Date(date_boundary[0])) - x(new Date(node.end_date)));
            } else {
                width = getActualWidth(node);
            }
            return width;
        }

        function getActualWidth(node) {
            return Math.abs(x(new Date(node.end_date)) - x(new Date(node.start_date)));
        }

        function startsBefore(node) {
            return moment(node.start_date, "MM/DD/YYYY").isBefore(date_boundary[0])
        }

        function endsAfter(node) {
            return moment(node.end_date, "MM/DD/YYYY").isAfter(date_boundary[1]);
        }

        function isVisible(node) {
            var start_date_visible = moment(node.start_date, "MM/DD/YYYY").isBetween(date_boundary[0], date_boundary[1], 'days'),
                end_date_visible = moment(node.end_date, "MM/DD/YYYY").isBetween(date_boundary[0], date_boundary[1], 'days');

            return start_date_visible || end_date_visible;

        }

        function getDaysRange(months) {
            ranges = [];
            months.map(function(month) {
                var startOfMonth = moment(month, 'MMM YYYY').startOf('month')
                var endOfMonth = moment(month, 'MMM YYYY').endOf('month')
                var day = startOfMonth;

                while (day <= endOfMonth) {
                    ranges.push({
                        name: moment(day).format('DD'),
                        start_date: day.toDate(),
                        end_date: day.clone().add(1, 'd').toDate(),
                    });
                    day = day.clone().add(1, 'd');
                }
            });
            return ranges;
        }

        function getMonthsRange(months) {
            ranges = [];
            months.map(function(month) {
                var startOfMonth = moment(month, 'MMM YYYY').startOf('month')
                var endOfMonth = moment(month, 'MMM YYYY').endOf('month')

                ranges.push({
                    name: moment(startOfMonth).format('MMMM'),
                    start_date: startOfMonth.toDate(),
                    end_date: endOfMonth.clone().add(1, 'd').toDate(),
                });


            });

            return ranges;
        }

        function getYearBoundary(year) {
            var yearDate = moment(year, 'YYYY');
            startOfYear = moment(yearDate).startOf('year');
            endOfYear = moment(yearDate).endOf('year');

            return {
                name: year,
                start_date: startOfYear.toDate(),
                end_date: endOfYear.toDate(),
            };
        }

        function getMonthsOftheYear(year) {
            var months = moment.months();
            months = months.map(function(month) {
                month = month + " " + year;
                return month;
            });
            return months;
        }

    }
}

index.html

<!DOCTYPE html>
<html>
<head>
  <title>Gantt Chart</title>
  <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
  <div class="chart" id="Chart" style="width: 100%"></div>
  <script src="https://d3js.org/d3.v3.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.18.1/moment.min.js"></script>
  <script type="text/javascript" src="ganttChart.js"></script>
  <script type="text/javascript" src="app.js"></script>
</body>
</html>

LICENSE.md

Copyright (c) 2017, Skcript Technologies Pvt. Ltd.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

preview.png

style.css

body {
  font-family: 'Open Sans', sans-serif;
}

.chart {
  overflow-x: hidden;
}
.cp {
  cursor: pointer;
}
.Single--Node {
  fill: #fff;
  stroke: #ccc;
  stroke-width: 1;
  border-radius: 10px;
}

.Title {
  font-weight: 600;
  font-size: 15px;
}

.TermType, .Duration {
  fill: #989898;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 600;
}
.second-title {
  font-size: 13px;
}

.date-line {
  stroke: #f5f5f5;
  stroke-width: 1;
}
.Date-Block, .Date-Block-Outline {
  fill: #fff;
  stroke: #ccc;
}
.start-lines, .end-lines {
  stroke-width: 1;
}

.gantt-wrapper{
      display: flex;
    flex-direction: column;
  border: 1px solid #767676;
    border-radius: 5px 5px 0px 0px;
    height: 100vh;
}

.chart{
    overflow: auto;
}

.gantt-top{
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 150px;
}

.range-select p{
  margin-left: 20px;
}

.gantt-top p,
.gantt-top select,
.gantt-top .range-select,
.gantt-top button{
  display: inline-block;
}
.empty_message_block {
  border: #ccc;
  border-radius: 4px;
}


.CurrentDay-Area {
  stroke: #60bdf1;
}

thumbnail.png