diff --git a/dist/frappe-gantt.js b/dist/frappe-gantt.js
index e3f720c..e5d8553 100644
--- a/dist/frappe-gantt.js
+++ b/dist/frappe-gantt.js
@@ -1,4 +1,4 @@
-const M = "year", D = "month", v = "day", E = "hour", Y = "minute", A = "second", L = "millisecond", T = {
+const M = "year", D = "month", v = "day", E = "hour", Y = "minute", A = "second", L = "millisecond", S = {
   January: "Jan",
   February: "Feb",
   March: "Mar",
@@ -61,27 +61,27 @@ const M = "year", D = "month", v = "day", E = "hour", Y = "minute", A = "second"
       SSS: o[6],
       D: o[2],
       MMMM: r,
-      MMM: T[r]
+      MMM: S[r]
     };
-    let d = t;
-    const p = [];
+    let p = t;
+    const d = [];
     return Object.keys(a).sort((g, u) => u.length - g.length).forEach((g) => {
-      d.includes(g) && (d = d.replaceAll(g, `$${p.length}`), p.push(a[g]));
-    }), p.forEach((g, u) => {
-      d = d.replaceAll(`$${u}`, g);
-    }), d;
+      p.includes(g) && (p = p.replaceAll(g, `$${d.length}`), d.push(a[g]));
+    }), d.forEach((g, u) => {
+      p = p.replaceAll(`$${u}`, g);
+    }), p;
   },
   diff(n, t, e = v) {
-    let s, i, r, o, a, d, p;
-    return s = n - t, i = s / 1e3, o = i / 60, r = o / 60, a = r / 24, d = a / 30, p = d / 12, e.endsWith("s") || (e += "s"), Math.floor(
+    let s, i, r, o, a, p, d;
+    return s = n - t, i = s / 1e3, o = i / 60, r = o / 60, a = r / 24, p = a / 30, d = p / 12, e.endsWith("s") || (e += "s"), Math.floor(
       {
         milliseconds: s,
         seconds: i,
         minutes: o,
         hours: r,
         days: a,
-        months: d,
-        years: p
+        months: p,
+        years: d
       }[e]
     );
   },
@@ -303,8 +303,7 @@ class O {
     ));
   }
   draw_progress_bar() {
-    if (this.invalid)
-      return;
+    if (this.invalid) return;
     this.$bar_progress = c("rect", {
       x: this.x,
       y: this.y,
@@ -360,8 +359,7 @@ class O {
     });
   }
   draw_resize_handles() {
-    if (this.invalid || this.gantt.options.readonly)
-      return;
+    if (this.invalid || this.gantt.options.readonly) return;
     const t = this.$bar, e = 8;
     if (this.gantt.options.dates_readonly || (c("rect", {
       x: t.getX() + t.getWidth() + e - 4,
@@ -424,8 +422,7 @@ class O {
     });
   }
   show_popup(t) {
-    if (this.gantt.bar_being_dragged)
-      return;
+    if (this.gantt.bar_being_dragged) return;
     const e = h.format(
       this.task._start,
       "MMM D",
@@ -456,8 +453,8 @@ class O {
   }
   update_label_position_on_horizontal_scroll({ x: t, sx: e }) {
     const s = document.querySelector(".gantt-container"), i = this.group.querySelector(".bar-label"), r = this.group.querySelector(".bar-img") || "", o = this.bar_group.querySelector(".img_mask") || "";
-    let a = this.$bar.getX() + this.$bar.getWidth(), d = i.getX() + t, p = r && r.getX() + t || 0, g = r && r.getBBox().width + 7 || 7, u = d + i.getBBox().width + 7, f = e + s.clientWidth / 2;
-    i.classList.contains("big") || (u < a && t > 0 && u < f || d - g > this.$bar.getX() && t < 0 && u > f) && (i.setAttribute("x", d), r && (r.setAttribute("x", p), o.setAttribute("x", p)));
+    let a = this.$bar.getX() + this.$bar.getWidth(), p = i.getX() + t, d = r && r.getX() + t || 0, g = r && r.getBBox().width + 7 || 7, u = p + i.getBBox().width + 7, f = e + s.clientWidth / 2;
+    i.classList.contains("big") || (u < a && t > 0 && u < f || p - g > this.$bar.getX() && t < 0 && u > f) && (i.setAttribute("x", p), r && (r.setAttribute("x", d), o.setAttribute("x", d)));
   }
   date_changed() {
     let t = !1;
@@ -476,11 +473,13 @@ class O {
     this.action_completed = !0, setTimeout(() => this.action_completed = !1, 1e3);
   }
   compute_start_end_date() {
-    const t = this.$bar, e = t.getX() / this.gantt.options.column_width, s = h.add(
+    const t = this.$bar, e = t.getX() / this.gantt.options.column_width;
+    let s = h.add(
       this.gantt.gantt_start,
       e * this.gantt.options.step,
       "hour"
-    ), i = this.gantt.gantt_start.getTimezoneOffset() - s.getTimezoneOffset();
+    );
+    const i = this.gantt.gantt_start.getTimezoneOffset() - s.getTimezoneOffset();
     i && (s = h.add(
       s,
       i,
@@ -533,8 +532,8 @@ class O {
   update_label_position() {
     const t = this.bar_group.querySelector(".img_mask") || "", e = this.$bar, s = this.group.querySelector(".bar-label"), i = this.group.querySelector(".bar-img");
     let r = 5, o = this.image_size + 10;
-    const a = s.getBBox().width, d = e.getWidth();
-    a > d ? (s.classList.add("big"), i ? (i.setAttribute("x", e.getX() + e.getWidth() + r), t.setAttribute(
+    const a = s.getBBox().width, p = e.getWidth();
+    a > p ? (s.classList.add("big"), i ? (i.setAttribute("x", e.getX() + e.getWidth() + r), t.setAttribute(
       "x",
       e.getX() + e.getWidth() + r
     ), s.setAttribute(
@@ -542,15 +541,14 @@ class O {
       e.getX() + e.getWidth() + o
     )) : s.setAttribute("x", e.getX() + e.getWidth() + r)) : (s.classList.remove("big"), i ? (i.setAttribute("x", e.getX() + r), t.setAttribute("x", e.getX() + r), s.setAttribute(
       "x",
-      e.getX() + d / 2 + o
+      e.getX() + p / 2 + o
     )) : s.setAttribute(
       "x",
-      e.getX() + d / 2 - a / 2
+      e.getX() + p / 2 - a / 2
     ));
   }
   update_handle_position() {
-    if (this.invalid || this.gantt.options.readonly)
-      return;
+    if (this.invalid || this.gantt.options.readonly) return;
     const t = this.$bar;
     this.handle_group.querySelector(".handle.left").setAttribute("x", t.getX() - 12), this.handle_group.querySelector(".handle.right").setAttribute("x", t.getEndX() + 4);
     const e = this.group.querySelector(".handle.progress");
@@ -571,24 +569,24 @@ class C {
     const e = () => this.to_task.$bar.getX() < t + this.gantt.options.padding && t > this.from_task.$bar.getX() + this.gantt.options.padding;
     for (; e(); )
       t -= 10;
-    const s = 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, i = this.to_task.$bar.getX() - this.gantt.options.padding / 2 - 7, r = this.gantt.options.header_height + this.gantt.options.bar_height / 2 + (this.gantt.options.padding + this.gantt.options.bar_height) * this.to_task.task._index + this.gantt.options.padding, o = this.from_task.task._index > this.to_task.task._index, a = this.gantt.options.arrow_curve, d = o ? 1 : 0, p = o ? -a : a, g = o ? r + this.gantt.options.arrow_curve : r - this.gantt.options.arrow_curve;
+    const s = this.gantt.options.header_height + this.gantt.options.bar_height + (this.gantt.options.padding + this.gantt.options.bar_height) * this.from_task.task._index + this.gantt.options.padding, i = this.to_task.$bar.getX() - this.gantt.options.padding / 2 - 7, r = 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, o = this.from_task.task._index > this.to_task.task._index, a = this.gantt.options.arrow_curve, p = o ? 1 : 0, d = o ? -a : a, g = o ? r + this.gantt.options.arrow_curve : r - this.gantt.options.arrow_curve;
     if (this.path = `
             M ${t} ${s}
             V ${g}
-            a ${a} ${a} 0 0 ${d} ${a} ${p}
+            a ${a} ${a} 0 0 ${p} ${a} ${d}
             L ${i} ${r}
             m -5 -5
             l 5 5
             l -5 5`, this.to_task.$bar.getX() < this.from_task.$bar.getX() + this.gantt.options.padding) {
-      const u = this.gantt.options.padding / 2 - a, f = this.to_task.$bar.getY() + this.to_task.$bar.getHeight() / 2 - p, w = this.to_task.$bar.getX() - this.gantt.options.padding;
+      const u = this.gantt.options.padding / 2 - a, f = this.to_task.$bar.getY() + this.to_task.$bar.getHeight() / 2 - d, w = this.to_task.$bar.getX() - this.gantt.options.padding;
       this.path = `
                 M ${t} ${s}
                 v ${u}
                 a ${a} ${a} 0 0 1 -${a} ${a}
                 H ${w}
-                a ${a} ${a} 0 0 ${d} -${a} ${p}
+                a ${a} ${a} 0 0 ${p} -${a} ${d}
                 V ${f}
-                a ${a} ${a} 0 0 ${d} ${a} ${p}
+                a ${a} ${a} 0 0 ${p} ${a} ${d}
                 L ${i} ${r}
                 m -5 -5
                 l 5 5
@@ -641,7 +639,7 @@ const l = {
   WEEK: "Week",
   MONTH: "Month",
   YEAR: "Year"
-}, I = {
+}, R = {
   HOUR: ["7d", "7d"],
   QUARTER_DAY: ["7d", "7d"],
   HALF_DAY: ["7d", "7d"],
@@ -649,7 +647,7 @@ const l = {
   WEEK: ["1m", "1m"],
   MONTH: ["1m", "1m"],
   YEAR: ["2y", "2y"]
-}, R = {
+}, B = {
   header_height: 65,
   column_width: 30,
   view_modes: [...Object.values(l)],
@@ -672,7 +670,7 @@ const l = {
   today_button: !0,
   view_mode_select: !1
 };
-class F {
+class I {
   constructor(t, e, s) {
     this.setup_wrapper(t), this.setup_options(s), this.setup_tasks(e), this.change_view_mode(), this.bind_events();
   }
@@ -692,19 +690,19 @@ class F {
     }), this.$container = document.createElement("div"), this.$container.classList.add("gantt-container"), this.$svg.parentElement.appendChild(this.$container), this.$container.appendChild(this.$svg), this.$popup_wrapper = document.createElement("div"), this.$popup_wrapper.classList.add("popup-wrapper"), this.$container.appendChild(this.$popup_wrapper);
   }
   setup_options(t) {
-    this.options = { ...R, ...t }, t.view_mode_padding || (t.view_mode_padding = {});
+    this.options = { ...B, ...t }, t.view_mode_padding || (t.view_mode_padding = {});
     for (let [e, s] of Object.entries(t.view_mode_padding))
       typeof s == "string" && (t.view_mode_padding[e] = [s, s]);
     this.options.view_mode_padding = {
-      ...I,
+      ...R,
       ...t.view_mode_padding
     };
   }
   setup_tasks(t) {
     this.tasks = t.map((e, s) => {
       if (e._start = h.parse(e.start), e.end === void 0 && e.duration !== void 0 && (e.end = e._start, e.duration.split(" ").forEach((a) => {
-        let { duration: d, scale: p } = h.parse_duration(a);
-        e.end = h.add(e.end, d, p);
+        let { duration: p, scale: d } = h.parse_duration(a);
+        e.end = h.add(e.end, p, d);
       })), e._end = h.parse(e.end), h.diff(e._end, e._start, "year") < 0)
         throw Error(
           "start of task can't be after end of task: in task #, " + (s + 1)
@@ -745,8 +743,8 @@ class F {
     let t, e;
     this.gantt_start ? t = h.start_of(this.gantt_start, "day") : t = /* @__PURE__ */ new Date(), this.gantt_end ? e = h.start_of(this.gantt_end, "day") : e = /* @__PURE__ */ new Date();
     let s;
-    for (let [a, d] of Object.entries(l))
-      d === this.options.view_mode && (s = a);
+    for (let [a, p] of Object.entries(l))
+      p === this.options.view_mode && (s = a);
     const [i, r] = this.options.view_mode_padding[s].map(h.parse_duration);
     t = h.add(
       t,
@@ -821,7 +819,6 @@ class F {
       }), this.options.lines === "both" || this.options.lines, i += this.options.bar_height + this.options.padding;
   }
   make_grid_header() {
-    document.querySelector(".grid-header");
     let t = document.createElement("div");
     t.style.height = this.options.header_height + 10 + "px", t.style.width = this.dates.length * this.options.column_width + "px", t.classList.add("grid-header"), this.$header = t, this.$container.appendChild(t);
     let e = document.createElement("div");
@@ -832,31 +829,36 @@ class F {
   make_side_header() {
     let t = document.createElement("div");
     if (t.classList.add("side-header"), this.options.view_mode_select) {
-      const r = document.createElement("select");
-      r.classList.add("viewmode-select");
-      const o = document.createElement("option");
-      o.selected = !0, o.disabled = !0, o.textContent = "Mode", r.appendChild(o);
-      for (const a in l) {
-        const d = document.createElement("option");
-        d.value = l[a], d.textContent = l[a], r.appendChild(d);
+      const s = document.createElement("select");
+      s.classList.add("viewmode-select");
+      const i = document.createElement("option");
+      i.selected = !0, i.disabled = !0, i.textContent = "Mode", s.appendChild(i);
+      for (const r in l) {
+        const o = document.createElement("option");
+        o.value = l[r], o.textContent = l[r], s.appendChild(o);
       }
-      r.addEventListener(
+      s.addEventListener(
         "change",
         (function() {
-          this.change_view_mode(r.value);
+          this.change_view_mode(s.value);
         }).bind(this)
-      ), t.appendChild(r);
+      ), t.appendChild(s);
     }
     if (this.options.today_button) {
-      let r = document.createElement("button");
-      r.classList.add("today-button"), r.textContent = "Today", r.onclick = this.scroll_today.bind(this), t.appendChild(r);
+      let s = document.createElement("button");
+      s.classList.add("today-button"), s.textContent = "Today", s.onclick = this.scroll_today.bind(this), t.appendChild(s);
     }
     this.$header.appendChild(t);
-    const { left: e, y: s } = this.$header.getBoundingClientRect(), i = Math.min(
-      this.$header.clientWidth,
-      this.$container.clientWidth
-    );
-    t.style.left = e + this.$container.scrollLeft + i - t.clientWidth + "px", t.style.top = s + 10 + "px";
+    function e() {
+      const s = this.$container.getBoundingClientRect(), i = t.getBoundingClientRect(), { left: r, y: o } = this.$header.getBoundingClientRect();
+      i.top < s.top || i.bottom > s.bottom ? (t.style.position = "absolute", t.style.top = `${container.scrollTop + i.top}px`) : (t.style.position = "fixed", t.style.top = o + 10 + "px");
+      const a = Math.min(
+        this.$header.clientWidth,
+        this.$container.clientWidth
+      );
+      t.style.left = r + this.$container.scrollLeft + a - t.clientWidth + "px", button.style.left = `${s.left + 20}px`;
+    }
+    window.addEventListener("scroll", e), window.addEventListener("resize", e);
   }
   make_grid_ticks() {
     if (!["both", "vertical", "horizontal"].includes(this.options.lines))
@@ -867,7 +869,7 @@ class F {
     }), r = this.options.header_height + this.options.padding / 2;
     const o = this.dates.length * this.options.column_width, a = this.options.bar_height + this.options.padding;
     if (this.options.lines !== "vertical")
-      for (let d of this.tasks)
+      for (let p of this.tasks)
         c("line", {
           x1: 0,
           y1: r + a,
@@ -877,13 +879,13 @@ class F {
           append_to: i
         }), r += a;
     if (this.options.lines !== "horizontal")
-      for (let d of this.dates) {
-        let p = "tick";
-        this.view_is(l.DAY) && d.getDate() === 1 && (p += " thick"), this.view_is(l.WEEK) && d.getDate() >= 1 && d.getDate() < 8 && (p += " thick"), this.view_is(l.MONTH) && d.getMonth() % 3 === 0 && (p += " thick"), c("path", {
+      for (let p of this.dates) {
+        let d = "tick";
+        this.view_is(l.DAY) && p.getDate() === 1 && (d += " thick"), this.view_is(l.WEEK) && p.getDate() >= 1 && p.getDate() < 8 && (d += " thick"), this.view_is(l.MONTH) && p.getMonth() % 3 === 0 && (d += " thick"), c("path", {
           d: `M ${t} ${e} v ${s}`,
-          class: p,
+          class: d,
           append_to: this.layers.grid
-        }), this.view_is(l.MONTH) ? t += h.get_days_in_month(d) * this.options.column_width / 30 : t += this.options.column_width;
+        }), this.view_is(l.MONTH) ? t += h.get_days_in_month(p) * this.options.column_width / 30 : t += this.options.column_width;
       }
   }
   highlightWeekends() {
@@ -932,25 +934,17 @@ class F {
   }
   make_grid_highlights() {
     if (this.options.highlight_weekend && this.highlightWeekends(), this.view_is(l.DAY) || this.view_is(l.WEEK) || this.view_is(l.MONTH) || this.view_is(l.YEAR)) {
-      const { x: t, date: e } = this.computeGridHighlightDimensions(
-        this.options.view_mode
-      ), s = this.options.header_height + this.options.padding / 2, i = (this.options.bar_height + this.options.padding) * this.tasks.length;
-      this.$current_highlight = this.create_el({
-        top: s,
-        left: t,
-        height: i,
-        classes: "current-highlight",
-        append_to: this.$container
-      });
-      let r = document.getElementById(
-        h.format(e).replaceAll(" ", "_")
-      );
+      const { x: t, date: e } = this.computeGridHighlightDimensions(this.options.view_mode);
+      if (!this.dates.find((o) => o.getTime() == e.getTime())) return;
+      const s = this.options.header_height + this.options.padding / 2, i = (this.options.bar_height + this.options.padding) * this.tasks.length;
+      this.$current_highlight = this.create_el({ top: s, left: t, height: i, classes: "current-highlight", append_to: this.$container });
+      let r = document.getElementById(h.format(e).replaceAll(" ", "_"));
       r && (r.classList.add("current-date-highlight"), r.style.top = +r.style.top.slice(0, -2) - 4 + "px", r.style.left = +r.style.left.slice(0, -2) - 8 + "px");
     }
   }
   create_el({ left: t, top: e, width: s, height: i, id: r, classes: o, append_to: a }) {
-    let d = document.createElement("div");
-    return d.classList.add(o), d.style.top = e + "px", d.style.left = t + "px", r && (d.id = r), s && (d.style.width = i + "px"), i && (d.style.height = i + "px"), a.appendChild(d), d;
+    let p = document.createElement("div");
+    return p.classList.add(o), p.style.top = e + "px", p.style.left = t + "px", r && (p.id = r), s && (p.style.width = i + "px"), i && (p.style.height = i + "px"), a.appendChild(p), p;
   }
   make_dates() {
     this.upper_texts_x = {}, this.get_dates_to_draw().forEach((t, e) => {
@@ -1059,8 +1053,7 @@ class F {
       let e = [];
       e = t.dependencies.map((s) => {
         const i = this.get_task(s);
-        if (!i)
-          return;
+        if (!i) return;
         const r = new C(
           this,
           this.bars[i._index],
@@ -1089,8 +1082,7 @@ class F {
       typeof t == "string" && (t = h.parse(t));
     }
     const e = this.$svg.parentElement;
-    if (!e)
-      return;
+    if (!e) return;
     const i = (h.diff(t, this.gantt_start, "hour") + 24) / this.options.step * this.options.column_width - this.options.column_width;
     e.scrollTo({ left: i, behavior: "smooth" });
   }
@@ -1110,36 +1102,36 @@ class F {
   bind_bar_events() {
     let t = !1, e = 0, s = 0, i = !1, r = !1, o = null, a = [];
     this.bar_being_dragged = null;
-    function d() {
+    function p() {
       return t || i || r;
     }
-    this.$svg.onclick = (p) => {
-      p.target.classList.contains("grid-row") && this.unselect_all();
-    }, _.on(this.$svg, "mousedown", ".bar-wrapper, .handle", (p, g) => {
+    this.$svg.onclick = (d) => {
+      d.target.classList.contains("grid-row") && this.unselect_all();
+    }, _.on(this.$svg, "mousedown", ".bar-wrapper, .handle", (d, g) => {
       const u = _.closest(".bar-wrapper", g);
-      a.forEach((w) => w.group.classList.remove("active")), g.classList.contains("left") ? i = !0 : g.classList.contains("right") ? r = !0 : g.classList.contains("bar-wrapper") && (t = !0), u.classList.add("active"), this.popup && this.popup.parent.classList.add("hidden"), e = p.offsetX || p.layerX, p.offsetY || p.layerY, o = u.getAttribute("data-id"), a = [
+      a.forEach((w) => w.group.classList.remove("active")), g.classList.contains("left") ? i = !0 : g.classList.contains("right") ? r = !0 : g.classList.contains("bar-wrapper") && (t = !0), u.classList.add("active"), this.popup && this.popup.parent.classList.add("hidden"), this.popup && this.popup.parent.classList.add("hidden"), e = d.offsetX || d.layerX, d.offsetY || d.layerY, o = u.getAttribute("data-id"), a = [
         o,
         ...this.get_all_dependent_tasks(o)
       ].map((w) => this.get_bar(w)), this.bar_being_dragged = o, a.forEach((w) => {
         const b = w.$bar;
         b.ox = b.getX(), b.oy = b.getY(), b.owidth = b.getWidth(), b.finaldx = 0;
       });
-    }), _.on(this.$container, "scroll", (p) => {
+    }), _.on(this.$container, "scroll", (d) => {
       let g = document.querySelectorAll(".bar-wrapper"), u = [];
       const f = [];
       let w;
-      s && (w = p.currentTarget.scrollLeft - s);
-      const b = p.currentTarget.scrollLeft / this.options.column_width * this.options.step / 24;
+      s && (w = d.currentTarget.scrollLeft - s);
+      const b = d.currentTarget.scrollLeft / this.options.column_width * this.options.step / 24;
       let y = "D MMM";
       ["Year", "Month"].includes(this.options.view_mode) ? y = "YYYY" : ["Day", "Week"].includes(this.options.view_mode) ? y = "MMMM" : this.view_is("Half Day") ? y = "D" : this.view_is("Hour") && (y = "D MMMM");
-      let S = h.format(
+      let T = h.format(
         h.add(this.gantt_start, b, "day"),
         y
       );
       const x = Array.from(
         document.querySelectorAll(".upper-text")
       ).find(
-        (m) => m.textContent === S
+        (m) => m.textContent === T
       );
       if (x && !x.classList.contains("current-upper")) {
         const m = document.querySelector(".current-upper");
@@ -1152,13 +1144,12 @@ class F {
       }), w && (u = f.map((m) => this.get_bar(m)), this.options.auto_move_label && u.forEach((m) => {
         m.update_label_position_on_horizontal_scroll({
           x: w,
-          sx: p.currentTarget.scrollLeft
+          sx: d.currentTarget.scrollLeft
         });
-      })), s = p.currentTarget.scrollLeft;
-    }), _.on(this.$svg, "mousemove", (p) => {
-      if (!d())
-        return;
-      const g = (p.offsetX || p.layerX) - e;
+      })), s = d.currentTarget.scrollLeft;
+    }), _.on(this.$svg, "mousemove", (d) => {
+      if (!p()) return;
+      const g = (d.offsetX || d.layerX) - e;
       a.forEach((u) => {
         const f = u.$bar;
         f.finaldx = this.get_snap_position(g), this.hide_popup(), i ? o === u.task.id ? u.update_bar_position({
@@ -1170,9 +1161,9 @@ class F {
           width: f.owidth + f.finaldx
         }) : t && !this.options.readonly && !this.options.dates_readonly && u.update_bar_position({ x: f.ox + f.finaldx });
       });
-    }), document.addEventListener("mouseup", (p) => {
+    }), document.addEventListener("mouseup", (d) => {
       t = !1, i = !1, r = !1;
-    }), _.on(this.$svg, "mouseup", (p) => {
+    }), _.on(this.$svg, "mouseup", (d) => {
       this.bar_being_dragged = null, a.forEach((g) => {
         g.$bar.finaldx && (g.date_changed(), g.set_action_completed());
       });
@@ -1182,15 +1173,14 @@ class F {
     let t = 0, e = null, s = null, i = null, r = null;
     _.on(this.$svg, "mousedown", ".handle.progress", (o, a) => {
       e = !0, t = o.offsetX || o.layerX, o.offsetY || o.layerY;
-      const p = _.closest(".bar-wrapper", a).getAttribute("data-id");
-      s = this.get_bar(p), i = s.$bar_progress, r = s.$bar, i.finaldx = 0, i.owidth = i.getWidth(), i.min_dx = -i.getWidth(), i.max_dx = r.getWidth() - i.getWidth();
+      const d = _.closest(".bar-wrapper", a).getAttribute("data-id");
+      s = this.get_bar(d), i = s.$bar_progress, r = s.$bar, i.finaldx = 0, i.owidth = i.getWidth(), i.min_dx = -i.getWidth(), i.max_dx = r.getWidth() - i.getWidth();
     }), _.on(this.$svg, "mousemove", (o) => {
-      if (!e)
-        return;
+      if (!e) return;
       let a = (o.offsetX || o.layerX) - t;
       a > i.max_dx && (a = i.max_dx), a < i.min_dx && (a = i.min_dx);
-      const d = s.$handle_progress;
-      _.attr(i, "width", i.owidth + a), _.attr(d, "cx", i.getEndX()), i.finaldx = a;
+      const p = s.$handle_progress;
+      _.attr(i, "width", i.owidth + a), _.attr(p, "cx", i.getEndX()), i.finaldx = a;
     }), _.on(this.$svg, "mouseup", () => {
       e = !1, i && i.finaldx && (i.finaldx = 0, s.progress_changed(), s.set_action_completed(), s = null, i = null, r = null);
     });
@@ -1251,10 +1241,10 @@ class F {
     this.$svg.innerHTML = "", (e = (t = this.$header) == null ? void 0 : t.remove) == null || e.call(t), (i = (s = this.$current_highlight) == null ? void 0 : s.remove) == null || i.call(s), (o = (r = this.popup) == null ? void 0 : r.hide) == null || o.call(r);
   }
 }
-F.VIEW_MODE = l;
+I.VIEW_MODE = l;
 function z(n) {
   return n.name + "_" + Math.random().toString(36).slice(2, 12);
 }
 export {
-  F as default
+  I as default
 };
diff --git a/dist/frappe-gantt.umd.cjs b/dist/frappe-gantt.umd.cjs
index 3e1485f..4cda95d 100644
--- a/dist/frappe-gantt.umd.cjs
+++ b/dist/frappe-gantt.umd.cjs
@@ -1,4 +1,4 @@
-(function(y,x){typeof exports=="object"&&typeof module<"u"?module.exports=x():typeof define=="function"&&define.amd?define(x):(y=typeof globalThis<"u"?globalThis:y||self,y["frappe-gantt"]=x())})(this,function(){"use strict";const y="year",x="month",k="day",D="hour",E="minute",Y="second",L="millisecond",S={January:"Jan",February:"Feb",March:"Mar",April:"Apr",May:"May",June:"Jun",July:"Jul",August:"Aug",September:"Sep",October:"Oct",November:"Nov",December:"Dec"},h={parse_duration(o){const e=/([0-9]+)(y|m|d|h|min|s|ms)/gm.exec(o);if(console.log(e),e!==null){if(e[2]==="y")return{duration:parseInt(e[1]),scale:"year"};if(e[2]==="m")return{duration:parseInt(e[1]),scale:"month"};if(e[2]==="d")return{duration:parseInt(e[1]),scale:"day"};if(e[2]==="h")return{duration:parseInt(e[1]),scale:"hour"};if(e[2]==="min")return{duration:parseInt(e[1]),scale:"minute"};if(e[2]==="s")return{duration:parseInt(e[1]),scale:"second"};if(e[2]==="ms")return{duration:parseInt(e[1]),scale:"millisecond"}}},parse(o,t="-",e=/[.:]/){if(o instanceof Date)return o;if(typeof o=="string"){let s,i;const r=o.split(" ");s=r[0].split(t).map(a=>parseInt(a,10)),i=r[1]&&r[1].split(e),s[1]=s[1]?s[1]-1:0;let n=s;return i&&i.length&&(i.length===4&&(i[3]="0."+i[3],i[3]=parseFloat(i[3])*1e3),n=n.concat(i)),new Date(...n)}},to_string(o,t=!1){if(!(o instanceof Date))throw new TypeError("Invalid argument type");const e=this.get_date_values(o).map((r,n)=>(n===1&&(r=r+1),n===6?M(r+"",3,"0"):M(r+"",2,"0"))),s=`${e[0]}-${e[1]}-${e[2]}`,i=`${e[3]}:${e[4]}:${e[5]}.${e[6]}`;return s+(t?" "+i:"")},format(o,t="YYYY-MM-DD HH:mm:ss.SSS",e="en"){const i=new Intl.DateTimeFormat(e,{month:"long"}).format(o),r=i.charAt(0).toUpperCase()+i.slice(1),n=this.get_date_values(o).map(c=>M(c,2,0)),a={YYYY:n[0],MM:M(+n[1]+1,2,0),DD:n[2],HH:n[3],mm:n[4],ss:n[5],SSS:n[6],D:n[2],MMMM:r,MMM:S[r]};let d=t;const p=[];return Object.keys(a).sort((c,u)=>u.length-c.length).forEach(c=>{d.includes(c)&&(d=d.replaceAll(c,`$${p.length}`),p.push(a[c]))}),p.forEach((c,u)=>{d=d.replaceAll(`$${u}`,c)}),d},diff(o,t,e=k){let s,i,r,n,a,d,p;return s=o-t,i=s/1e3,n=i/60,r=n/60,a=r/24,d=a/30,p=d/12,e.endsWith("s")||(e+="s"),Math.floor({milliseconds:s,seconds:i,minutes:n,hours:r,days:a,months:d,years:p}[e])},today(){const o=this.get_date_values(new Date).slice(0,3);return new Date(...o)},now(){return new Date},add(o,t,e){t=parseInt(t,10);const s=[o.getFullYear()+(e===y?t:0),o.getMonth()+(e===x?t:0),o.getDate()+(e===k?t:0),o.getHours()+(e===D?t:0),o.getMinutes()+(e===E?t:0),o.getSeconds()+(e===Y?t:0),o.getMilliseconds()+(e===L?t:0)];return new Date(...s)},start_of(o,t){const e={[y]:6,[x]:5,[k]:4,[D]:3,[E]:2,[Y]:1,[L]:0};function s(r){const n=e[t];return e[r]<=n}const i=[o.getFullYear(),s(y)?0:o.getMonth(),s(x)?1:o.getDate(),s(k)?0:o.getHours(),s(D)?0:o.getMinutes(),s(E)?0:o.getSeconds(),s(Y)?0:o.getMilliseconds()];return new Date(...i)},clone(o){return new Date(...this.get_date_values(o))},get_date_values(o){return[o.getFullYear(),o.getMonth(),o.getDate(),o.getHours(),o.getMinutes(),o.getSeconds(),o.getMilliseconds()]},get_days_in_month(o){const t=[31,28,31,30,31,30,31,31,30,31,30,31],e=o.getMonth();if(e!==1)return t[e];const s=o.getFullYear();return s%4===0&&s%100!=0||s%400===0?29:28}};function M(o,t,e){return o=o+"",t=t>>0,e=String(typeof e<"u"?e:" "),o.length>t?String(o):(t=t-o.length,t>e.length&&(e+=e.repeat(t/e.length)),e.slice(0,t)+String(o))}function _(o,t){return typeof o=="string"?(t||document).querySelector(o):o||null}function g(o,t){const e=document.createElementNS("http://www.w3.org/2000/svg",o);for(let s in t)s==="append_to"?t.append_to.appendChild(e):s==="innerHTML"?e.innerHTML=t.innerHTML:s==="clipPath"?e.setAttribute("clip-path","url(#"+t[s]+")"):e.setAttribute(s,t[s]);return e}function A(o,t,e,s){const i=W(o,t,e,s);if(i===o){const r=document.createEvent("HTMLEvents");r.initEvent("click",!0,!0),r.eventName="click",i.dispatchEvent(r)}}function W(o,t,e,s,i="0.4s",r="0.1s"){const n=o.querySelector("animate");if(n)return _.attr(n,{attributeName:t,from:e,to:s,dur:i,begin:"click + "+r}),o;const a=g("animate",{attributeName:t,from:e,to:s,dur:i,begin:r,calcMode:"spline",values:e+";"+s,keyTimes:"0; 1",keySplines:X("ease-out")});return o.appendChild(a),o}function X(o){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"}[o]}_.on=(o,t,e,s)=>{s?_.delegate(o,t,e,s):(s=e,_.bind(o,t,s))},_.off=(o,t,e)=>{o.removeEventListener(t,e)},_.bind=(o,t,e)=>{t.split(/\s+/).forEach(function(s){o.addEventListener(s,e)})},_.delegate=(o,t,e,s)=>{o.addEventListener(t,function(i){const r=i.target.closest(e);r&&(i.delegatedTarget=r,s.call(this,i,r))})},_.closest=(o,t)=>t?t.matches(o)?t:_.closest(o,t.parentNode):null,_.attr=(o,t,e)=>{if(!e&&typeof t=="string")return o.getAttribute(t);if(typeof t=="object"){for(let s in t)_.attr(o,s,t[s]);return}o.setAttribute(t,e)};class O{constructor(t,e){this.set_defaults(t,e),this.prepare(),this.draw(),this.bind()}set_defaults(t,e){this.action_completed=!1,this.gantt=t,this.task=e}prepare(){this.prepare_values(),this.prepare_helpers()}prepare_values(){this.invalid=this.task.invalid,this.height=this.gantt.options.bar_height,this.image_size=this.height-5,this.compute_x(),this.compute_y(),this.compute_duration(),this.corner_radius=this.gantt.options.bar_corner_radius,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=g("g",{class:"bar-wrapper"+(this.task.custom_class?" "+this.task.custom_class:"")+(this.task.important?" important":""),"data-id":this.task.id}),this.bar_group=g("g",{class:"bar-group",append_to:this.group}),this.handle_group=g("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()}}prepare_expected_progress_values(){this.compute_expected_progress(),this.expected_progress_width=this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0}draw(){this.draw_bar(),this.draw_progress_bar(),this.gantt.options.show_expected_progress&&(this.prepare_expected_progress_values(),this.draw_expected_progress_bar()),this.draw_label(),this.draw_resize_handles(),this.task.thumbnail&&this.draw_thumbnail()}draw_bar(){this.$bar=g("rect",{x:this.x,y:this.y,width:this.width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar"+(/^((?!chrome|android).)*safari/i.test(navigator.userAgent)&&!this.task.important?" safari":""),append_to:this.bar_group}),A(this.$bar,"width",0,this.width),this.invalid&&this.$bar.classList.add("bar-invalid")}draw_expected_progress_bar(){this.invalid||(this.$expected_bar_progress=g("rect",{x:this.x,y:this.y,width:this.expected_progress_width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar-expected-progress",append_to:this.bar_group}),A(this.$expected_bar_progress,"width",0,this.expected_progress_width))}draw_progress_bar(){if(this.invalid)return;this.$bar_progress=g("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});const t=h.diff(this.task._start,this.gantt.gantt_start,"hour")/this.gantt.options.step*this.gantt.options.column_width;let e=document.createElement("div");e.id=`${this.task.id}-highlight`,e.classList.add("date-highlight"),e.style.height=this.height*.8+"px",e.style.width=this.width+"px",e.style.top=this.gantt.options.header_height-25+"px",e.style.left=t+"px",this.$date_highlight=e,this.gantt.$lower_header.prepend(e),A(this.$bar_progress,"width",0,this.progress_width)}draw_label(){let t=this.x+this.$bar.getWidth()/2;this.task.thumbnail&&(t=this.x+this.image_size+5),g("text",{x:t,y:this.y+this.height/2,innerHTML:this.task.name,class:"bar-label",append_to:this.bar_group}),requestAnimationFrame(()=>this.update_label_position())}draw_thumbnail(){let t=10,e=2,s,i;s=g("defs",{append_to:this.bar_group}),g("rect",{id:"rect_"+this.task.id,x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,rx:"15",class:"img_mask",append_to:s}),i=g("clipPath",{id:"clip_"+this.task.id,append_to:s}),g("use",{href:"#rect_"+this.task.id,append_to:i}),g("image",{x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,class:"bar-img",href:this.task.thumbnail,clipPath:"clip_"+this.task.id,append_to:this.bar_group})}draw_resize_handles(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar,e=8;if(this.gantt.options.dates_readonly||(g("rect",{x:t.getX()+t.getWidth()+e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle right",append_to:this.handle_group}),g("rect",{x:t.getX()-e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle left",append_to:this.handle_group})),!this.gantt.options.progress_readonly){const s=this.$bar_progress;this.$handle_progress=g("circle",{cx:s.getEndX(),cy:s.getY()+s.getHeight()/2,r:5,class:"handle progress",append_to:this.handle_group})}}bind(){this.invalid||this.setup_click_event()}setup_click_event(){let t=this.task.id;_.on(this.group,"mouseover",s=>{this.gantt.trigger_event("hover",[this.task,s.screenX,s.screenY,s])});let e;_.on(this.group,"mouseenter",s=>e=setTimeout(()=>{this.show_popup(s.offsetX||s.layerX),document.getElementById(`${t}-highlight`).style.display="block"},200)),_.on(this.group,"mouseleave",()=>{var s,i;clearTimeout(e),(i=(s=this.gantt.popup)==null?void 0:s.hide)==null||i.call(s),document.getElementById(`${t}-highlight`).style.display="none"}),_.on(this.group,"click",()=>{this.gantt.trigger_event("click",[this.task])}),_.on(this.group,"dblclick",s=>{this.action_completed||(this.group.classList.remove("active"),this.gantt.popup&&this.gantt.popup.parent.classList.remove("hidden"),this.gantt.trigger_event("double_click",[this.task]))})}show_popup(t){if(this.gantt.bar_being_dragged)return;const e=h.format(this.task._start,"MMM D",this.gantt.options.language),s=h.format(h.add(this.task._end,-1,"second"),"MMM D",this.gantt.options.language),i=`${e} -  ${s}<br/>Progress: ${this.task.progress}`;this.gantt.show_popup({x:t,target_element:this.$bar,title:this.task.name,subtitle:i,task:this.task})}update_bar_position({x:t=null,width:e=null}){const s=this.$bar;if(t){if(!this.task.dependencies.map(n=>this.gantt.get_bar(n).$bar.getX()).reduce((n,a)=>t>=a,t)){e=null;return}this.update_attr(s,"x",t),this.$date_highlight.style.left=t+"px"}e&&(this.update_attr(s,"width",e),this.$date_highlight.style.width=e+"px"),this.update_label_position(),this.update_handle_position(),this.gantt.options.show_expected_progress&&(this.date_changed(),this.compute_duration(),this.update_expected_progressbar_position()),this.update_progressbar_position(),this.update_arrow_position()}update_label_position_on_horizontal_scroll({x:t,sx:e}){const s=document.querySelector(".gantt-container"),i=this.group.querySelector(".bar-label"),r=this.group.querySelector(".bar-img")||"",n=this.bar_group.querySelector(".img_mask")||"";let a=this.$bar.getX()+this.$bar.getWidth(),d=i.getX()+t,p=r&&r.getX()+t||0,c=r&&r.getBBox().width+7||7,u=d+i.getBBox().width+7,f=e+s.clientWidth/2;i.classList.contains("big")||(u<a&&t>0&&u<f||d-c>this.$bar.getX()&&t<0&&u>f)&&(i.setAttribute("x",d),r&&(r.setAttribute("x",p),n.setAttribute("x",p)))}date_changed(){let t=!1;const{new_start_date:e,new_end_date:s}=this.compute_start_end_date();Number(this.task._start)!==Number(e)&&(t=!0,this.task._start=e),Number(this.task._end)!==Number(s)&&(t=!0,this.task._end=s),t&&this.gantt.trigger_event("date_change",[this.task,e,h.add(s,-1,"second")])}progress_changed(){const t=this.compute_progress();this.task.progress=t,this.gantt.trigger_event("progress_change",[this.task,t])}set_action_completed(){this.action_completed=!0,setTimeout(()=>this.action_completed=!1,1e3)}compute_start_end_date(){const t=this.$bar,e=t.getX()/this.gantt.options.column_width,s=h.add(this.gantt.gantt_start,e*this.gantt.options.step,"hour"),i=this.gantt.gantt_start.getTimezoneOffset()-s.getTimezoneOffset();i&&(s=h.add(s,i,"minute"));const r=t.getWidth()/this.gantt.options.column_width,n=h.add(s,r*this.gantt.options.step,"hour");return{new_start_date:s,new_end_date:n}}compute_progress(){const t=this.$bar_progress.getWidth()/this.$bar.getWidth()*100;return parseInt(t,10)}compute_expected_progress(){this.expected_progress=h.diff(h.today(),this.task._start,"hour")/this.gantt.options.step,this.expected_progress=(this.expected_progress<this.duration?this.expected_progress:this.duration)*100/this.duration}compute_x(){const{step:t,column_width:e}=this.gantt.options,s=this.task._start,i=this.gantt.gantt_start;let n=h.diff(s,i,"hour")/t*e;this.gantt.view_is("Month")&&(n=h.diff(s,i,"day")*e/30),this.x=n}compute_y(){this.y=this.gantt.options.header_height+this.gantt.options.padding+this.task._index*(this.height+this.gantt.options.padding)}compute_duration(){this.duration=h.diff(this.task._end,this.task._start,"hour")/this.gantt.options.step}get_snap_position(t){let e=t,s,i;return this.gantt.view_is("Week")?(s=t%(this.gantt.options.column_width/7),i=e-s+(s<this.gantt.options.column_width/14?0:this.gantt.options.column_width/7)):this.gantt.view_is("Month")?(s=t%(this.gantt.options.column_width/30),i=e-s+(s<this.gantt.options.column_width/60?0:this.gantt.options.column_width/30)):(s=t%this.gantt.options.column_width,i=e-s+(s<this.gantt.options.column_width/2?0:this.gantt.options.column_width)),i}update_attr(t,e,s){return s=+s,isNaN(s)||t.setAttribute(e,s),t}update_expected_progressbar_position(){this.invalid||(this.$expected_bar_progress.setAttribute("x",this.$bar.getX()),this.compute_expected_progress(),this.$expected_bar_progress.setAttribute("width",this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0))}update_progressbar_position(){this.invalid||this.gantt.options.readonly||(this.$bar_progress.setAttribute("x",this.$bar.getX()),this.$bar_progress.setAttribute("width",this.$bar.getWidth()*(this.task.progress/100)))}update_label_position(){const t=this.bar_group.querySelector(".img_mask")||"",e=this.$bar,s=this.group.querySelector(".bar-label"),i=this.group.querySelector(".bar-img");let r=5,n=this.image_size+10;const a=s.getBBox().width,d=e.getWidth();a>d?(s.classList.add("big"),i?(i.setAttribute("x",e.getX()+e.getWidth()+r),t.setAttribute("x",e.getX()+e.getWidth()+r),s.setAttribute("x",e.getX()+e.getWidth()+n)):s.setAttribute("x",e.getX()+e.getWidth()+r)):(s.classList.remove("big"),i?(i.setAttribute("x",e.getX()+r),t.setAttribute("x",e.getX()+r),s.setAttribute("x",e.getX()+d/2+n)):s.setAttribute("x",e.getX()+d/2-a/2))}update_handle_position(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar;this.handle_group.querySelector(".handle.left").setAttribute("x",t.getX()-12),this.handle_group.querySelector(".handle.right").setAttribute("x",t.getEndX()+4);const e=this.group.querySelector(".handle.progress");e&&e.setAttribute("cx",this.$bar_progress.getEndX())}update_arrow_position(){this.arrows=this.arrows||[];for(let t of this.arrows)t.update()}}class C{constructor(t,e,s){this.gantt=t,this.from_task=e,this.to_task=s,this.calculate_path(),this.draw()}calculate_path(){let t=this.from_task.$bar.getX()+this.from_task.$bar.getWidth()/2;const e=()=>this.to_task.$bar.getX()<t+this.gantt.options.padding&&t>this.from_task.$bar.getX()+this.gantt.options.padding;for(;e();)t-=10;const s=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,i=this.to_task.$bar.getX()-this.gantt.options.padding/2-7,r=this.gantt.options.header_height+this.gantt.options.bar_height/2+(this.gantt.options.padding+this.gantt.options.bar_height)*this.to_task.task._index+this.gantt.options.padding,n=this.from_task.task._index>this.to_task.task._index,a=this.gantt.options.arrow_curve,d=n?1:0,p=n?-a:a,c=n?r+this.gantt.options.arrow_curve:r-this.gantt.options.arrow_curve;if(this.path=`
+(function(y,x){typeof exports=="object"&&typeof module<"u"?module.exports=x():typeof define=="function"&&define.amd?define(x):(y=typeof globalThis<"u"?globalThis:y||self,y.Gantt=x())})(this,function(){"use strict";const y="year",x="month",k="day",D="hour",E="minute",Y="second",L="millisecond",S={January:"Jan",February:"Feb",March:"Mar",April:"Apr",May:"May",June:"Jun",July:"Jul",August:"Aug",September:"Sep",October:"Oct",November:"Nov",December:"Dec"},h={parse_duration(o){const e=/([0-9]+)(y|m|d|h|min|s|ms)/gm.exec(o);if(console.log(e),e!==null){if(e[2]==="y")return{duration:parseInt(e[1]),scale:"year"};if(e[2]==="m")return{duration:parseInt(e[1]),scale:"month"};if(e[2]==="d")return{duration:parseInt(e[1]),scale:"day"};if(e[2]==="h")return{duration:parseInt(e[1]),scale:"hour"};if(e[2]==="min")return{duration:parseInt(e[1]),scale:"minute"};if(e[2]==="s")return{duration:parseInt(e[1]),scale:"second"};if(e[2]==="ms")return{duration:parseInt(e[1]),scale:"millisecond"}}},parse(o,t="-",e=/[.:]/){if(o instanceof Date)return o;if(typeof o=="string"){let s,i;const r=o.split(" ");s=r[0].split(t).map(a=>parseInt(a,10)),i=r[1]&&r[1].split(e),s[1]=s[1]?s[1]-1:0;let n=s;return i&&i.length&&(i.length===4&&(i[3]="0."+i[3],i[3]=parseFloat(i[3])*1e3),n=n.concat(i)),new Date(...n)}},to_string(o,t=!1){if(!(o instanceof Date))throw new TypeError("Invalid argument type");const e=this.get_date_values(o).map((r,n)=>(n===1&&(r=r+1),n===6?M(r+"",3,"0"):M(r+"",2,"0"))),s=`${e[0]}-${e[1]}-${e[2]}`,i=`${e[3]}:${e[4]}:${e[5]}.${e[6]}`;return s+(t?" "+i:"")},format(o,t="YYYY-MM-DD HH:mm:ss.SSS",e="en"){const i=new Intl.DateTimeFormat(e,{month:"long"}).format(o),r=i.charAt(0).toUpperCase()+i.slice(1),n=this.get_date_values(o).map(c=>M(c,2,0)),a={YYYY:n[0],MM:M(+n[1]+1,2,0),DD:n[2],HH:n[3],mm:n[4],ss:n[5],SSS:n[6],D:n[2],MMMM:r,MMM:S[r]};let d=t;const p=[];return Object.keys(a).sort((c,u)=>u.length-c.length).forEach(c=>{d.includes(c)&&(d=d.replaceAll(c,`$${p.length}`),p.push(a[c]))}),p.forEach((c,u)=>{d=d.replaceAll(`$${u}`,c)}),d},diff(o,t,e=k){let s,i,r,n,a,d,p;return s=o-t,i=s/1e3,n=i/60,r=n/60,a=r/24,d=a/30,p=d/12,e.endsWith("s")||(e+="s"),Math.floor({milliseconds:s,seconds:i,minutes:n,hours:r,days:a,months:d,years:p}[e])},today(){const o=this.get_date_values(new Date).slice(0,3);return new Date(...o)},now(){return new Date},add(o,t,e){t=parseInt(t,10);const s=[o.getFullYear()+(e===y?t:0),o.getMonth()+(e===x?t:0),o.getDate()+(e===k?t:0),o.getHours()+(e===D?t:0),o.getMinutes()+(e===E?t:0),o.getSeconds()+(e===Y?t:0),o.getMilliseconds()+(e===L?t:0)];return new Date(...s)},start_of(o,t){const e={[y]:6,[x]:5,[k]:4,[D]:3,[E]:2,[Y]:1,[L]:0};function s(r){const n=e[t];return e[r]<=n}const i=[o.getFullYear(),s(y)?0:o.getMonth(),s(x)?1:o.getDate(),s(k)?0:o.getHours(),s(D)?0:o.getMinutes(),s(E)?0:o.getSeconds(),s(Y)?0:o.getMilliseconds()];return new Date(...i)},clone(o){return new Date(...this.get_date_values(o))},get_date_values(o){return[o.getFullYear(),o.getMonth(),o.getDate(),o.getHours(),o.getMinutes(),o.getSeconds(),o.getMilliseconds()]},get_days_in_month(o){const t=[31,28,31,30,31,30,31,31,30,31,30,31],e=o.getMonth();if(e!==1)return t[e];const s=o.getFullYear();return s%4===0&&s%100!=0||s%400===0?29:28}};function M(o,t,e){return o=o+"",t=t>>0,e=String(typeof e<"u"?e:" "),o.length>t?String(o):(t=t-o.length,t>e.length&&(e+=e.repeat(t/e.length)),e.slice(0,t)+String(o))}function _(o,t){return typeof o=="string"?(t||document).querySelector(o):o||null}function g(o,t){const e=document.createElementNS("http://www.w3.org/2000/svg",o);for(let s in t)s==="append_to"?t.append_to.appendChild(e):s==="innerHTML"?e.innerHTML=t.innerHTML:s==="clipPath"?e.setAttribute("clip-path","url(#"+t[s]+")"):e.setAttribute(s,t[s]);return e}function A(o,t,e,s){const i=W(o,t,e,s);if(i===o){const r=document.createEvent("HTMLEvents");r.initEvent("click",!0,!0),r.eventName="click",i.dispatchEvent(r)}}function W(o,t,e,s,i="0.4s",r="0.1s"){const n=o.querySelector("animate");if(n)return _.attr(n,{attributeName:t,from:e,to:s,dur:i,begin:"click + "+r}),o;const a=g("animate",{attributeName:t,from:e,to:s,dur:i,begin:r,calcMode:"spline",values:e+";"+s,keyTimes:"0; 1",keySplines:X("ease-out")});return o.appendChild(a),o}function X(o){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"}[o]}_.on=(o,t,e,s)=>{s?_.delegate(o,t,e,s):(s=e,_.bind(o,t,s))},_.off=(o,t,e)=>{o.removeEventListener(t,e)},_.bind=(o,t,e)=>{t.split(/\s+/).forEach(function(s){o.addEventListener(s,e)})},_.delegate=(o,t,e,s)=>{o.addEventListener(t,function(i){const r=i.target.closest(e);r&&(i.delegatedTarget=r,s.call(this,i,r))})},_.closest=(o,t)=>t?t.matches(o)?t:_.closest(o,t.parentNode):null,_.attr=(o,t,e)=>{if(!e&&typeof t=="string")return o.getAttribute(t);if(typeof t=="object"){for(let s in t)_.attr(o,s,t[s]);return}o.setAttribute(t,e)};class O{constructor(t,e){this.set_defaults(t,e),this.prepare(),this.draw(),this.bind()}set_defaults(t,e){this.action_completed=!1,this.gantt=t,this.task=e}prepare(){this.prepare_values(),this.prepare_helpers()}prepare_values(){this.invalid=this.task.invalid,this.height=this.gantt.options.bar_height,this.image_size=this.height-5,this.compute_x(),this.compute_y(),this.compute_duration(),this.corner_radius=this.gantt.options.bar_corner_radius,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=g("g",{class:"bar-wrapper"+(this.task.custom_class?" "+this.task.custom_class:"")+(this.task.important?" important":""),"data-id":this.task.id}),this.bar_group=g("g",{class:"bar-group",append_to:this.group}),this.handle_group=g("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()}}prepare_expected_progress_values(){this.compute_expected_progress(),this.expected_progress_width=this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0}draw(){this.draw_bar(),this.draw_progress_bar(),this.gantt.options.show_expected_progress&&(this.prepare_expected_progress_values(),this.draw_expected_progress_bar()),this.draw_label(),this.draw_resize_handles(),this.task.thumbnail&&this.draw_thumbnail()}draw_bar(){this.$bar=g("rect",{x:this.x,y:this.y,width:this.width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar"+(/^((?!chrome|android).)*safari/i.test(navigator.userAgent)&&!this.task.important?" safari":""),append_to:this.bar_group}),A(this.$bar,"width",0,this.width),this.invalid&&this.$bar.classList.add("bar-invalid")}draw_expected_progress_bar(){this.invalid||(this.$expected_bar_progress=g("rect",{x:this.x,y:this.y,width:this.expected_progress_width,height:this.height,rx:this.corner_radius,ry:this.corner_radius,class:"bar-expected-progress",append_to:this.bar_group}),A(this.$expected_bar_progress,"width",0,this.expected_progress_width))}draw_progress_bar(){if(this.invalid)return;this.$bar_progress=g("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});const t=h.diff(this.task._start,this.gantt.gantt_start,"hour")/this.gantt.options.step*this.gantt.options.column_width;let e=document.createElement("div");e.id=`${this.task.id}-highlight`,e.classList.add("date-highlight"),e.style.height=this.height*.8+"px",e.style.width=this.width+"px",e.style.top=this.gantt.options.header_height-25+"px",e.style.left=t+"px",this.$date_highlight=e,this.gantt.$lower_header.prepend(e),A(this.$bar_progress,"width",0,this.progress_width)}draw_label(){let t=this.x+this.$bar.getWidth()/2;this.task.thumbnail&&(t=this.x+this.image_size+5),g("text",{x:t,y:this.y+this.height/2,innerHTML:this.task.name,class:"bar-label",append_to:this.bar_group}),requestAnimationFrame(()=>this.update_label_position())}draw_thumbnail(){let t=10,e=2,s,i;s=g("defs",{append_to:this.bar_group}),g("rect",{id:"rect_"+this.task.id,x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,rx:"15",class:"img_mask",append_to:s}),i=g("clipPath",{id:"clip_"+this.task.id,append_to:s}),g("use",{href:"#rect_"+this.task.id,append_to:i}),g("image",{x:this.x+t,y:this.y+e,width:this.image_size,height:this.image_size,class:"bar-img",href:this.task.thumbnail,clipPath:"clip_"+this.task.id,append_to:this.bar_group})}draw_resize_handles(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar,e=8;if(this.gantt.options.dates_readonly||(g("rect",{x:t.getX()+t.getWidth()+e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle right",append_to:this.handle_group}),g("rect",{x:t.getX()-e-4,y:t.getY()+1,width:e,height:this.height-2,rx:this.corner_radius,ry:this.corner_radius,class:"handle left",append_to:this.handle_group})),!this.gantt.options.progress_readonly){const s=this.$bar_progress;this.$handle_progress=g("circle",{cx:s.getEndX(),cy:s.getY()+s.getHeight()/2,r:5,class:"handle progress",append_to:this.handle_group})}}bind(){this.invalid||this.setup_click_event()}setup_click_event(){let t=this.task.id;_.on(this.group,"mouseover",s=>{this.gantt.trigger_event("hover",[this.task,s.screenX,s.screenY,s])});let e;_.on(this.group,"mouseenter",s=>e=setTimeout(()=>{this.show_popup(s.offsetX||s.layerX),document.getElementById(`${t}-highlight`).style.display="block"},200)),_.on(this.group,"mouseleave",()=>{var s,i;clearTimeout(e),(i=(s=this.gantt.popup)==null?void 0:s.hide)==null||i.call(s),document.getElementById(`${t}-highlight`).style.display="none"}),_.on(this.group,"click",()=>{this.gantt.trigger_event("click",[this.task])}),_.on(this.group,"dblclick",s=>{this.action_completed||(this.group.classList.remove("active"),this.gantt.popup&&this.gantt.popup.parent.classList.remove("hidden"),this.gantt.trigger_event("double_click",[this.task]))})}show_popup(t){if(this.gantt.bar_being_dragged)return;const e=h.format(this.task._start,"MMM D",this.gantt.options.language),s=h.format(h.add(this.task._end,-1,"second"),"MMM D",this.gantt.options.language),i=`${e} -  ${s}<br/>Progress: ${this.task.progress}`;this.gantt.show_popup({x:t,target_element:this.$bar,title:this.task.name,subtitle:i,task:this.task})}update_bar_position({x:t=null,width:e=null}){const s=this.$bar;if(t){if(!this.task.dependencies.map(n=>this.gantt.get_bar(n).$bar.getX()).reduce((n,a)=>t>=a,t)){e=null;return}this.update_attr(s,"x",t),this.$date_highlight.style.left=t+"px"}e&&(this.update_attr(s,"width",e),this.$date_highlight.style.width=e+"px"),this.update_label_position(),this.update_handle_position(),this.gantt.options.show_expected_progress&&(this.date_changed(),this.compute_duration(),this.update_expected_progressbar_position()),this.update_progressbar_position(),this.update_arrow_position()}update_label_position_on_horizontal_scroll({x:t,sx:e}){const s=document.querySelector(".gantt-container"),i=this.group.querySelector(".bar-label"),r=this.group.querySelector(".bar-img")||"",n=this.bar_group.querySelector(".img_mask")||"";let a=this.$bar.getX()+this.$bar.getWidth(),d=i.getX()+t,p=r&&r.getX()+t||0,c=r&&r.getBBox().width+7||7,u=d+i.getBBox().width+7,f=e+s.clientWidth/2;i.classList.contains("big")||(u<a&&t>0&&u<f||d-c>this.$bar.getX()&&t<0&&u>f)&&(i.setAttribute("x",d),r&&(r.setAttribute("x",p),n.setAttribute("x",p)))}date_changed(){let t=!1;const{new_start_date:e,new_end_date:s}=this.compute_start_end_date();Number(this.task._start)!==Number(e)&&(t=!0,this.task._start=e),Number(this.task._end)!==Number(s)&&(t=!0,this.task._end=s),t&&this.gantt.trigger_event("date_change",[this.task,e,h.add(s,-1,"second")])}progress_changed(){const t=this.compute_progress();this.task.progress=t,this.gantt.trigger_event("progress_change",[this.task,t])}set_action_completed(){this.action_completed=!0,setTimeout(()=>this.action_completed=!1,1e3)}compute_start_end_date(){const t=this.$bar,e=t.getX()/this.gantt.options.column_width;let s=h.add(this.gantt.gantt_start,e*this.gantt.options.step,"hour");const i=this.gantt.gantt_start.getTimezoneOffset()-s.getTimezoneOffset();i&&(s=h.add(s,i,"minute"));const r=t.getWidth()/this.gantt.options.column_width,n=h.add(s,r*this.gantt.options.step,"hour");return{new_start_date:s,new_end_date:n}}compute_progress(){const t=this.$bar_progress.getWidth()/this.$bar.getWidth()*100;return parseInt(t,10)}compute_expected_progress(){this.expected_progress=h.diff(h.today(),this.task._start,"hour")/this.gantt.options.step,this.expected_progress=(this.expected_progress<this.duration?this.expected_progress:this.duration)*100/this.duration}compute_x(){const{step:t,column_width:e}=this.gantt.options,s=this.task._start,i=this.gantt.gantt_start;let n=h.diff(s,i,"hour")/t*e;this.gantt.view_is("Month")&&(n=h.diff(s,i,"day")*e/30),this.x=n}compute_y(){this.y=this.gantt.options.header_height+this.gantt.options.padding+this.task._index*(this.height+this.gantt.options.padding)}compute_duration(){this.duration=h.diff(this.task._end,this.task._start,"hour")/this.gantt.options.step}get_snap_position(t){let e=t,s,i;return this.gantt.view_is("Week")?(s=t%(this.gantt.options.column_width/7),i=e-s+(s<this.gantt.options.column_width/14?0:this.gantt.options.column_width/7)):this.gantt.view_is("Month")?(s=t%(this.gantt.options.column_width/30),i=e-s+(s<this.gantt.options.column_width/60?0:this.gantt.options.column_width/30)):(s=t%this.gantt.options.column_width,i=e-s+(s<this.gantt.options.column_width/2?0:this.gantt.options.column_width)),i}update_attr(t,e,s){return s=+s,isNaN(s)||t.setAttribute(e,s),t}update_expected_progressbar_position(){this.invalid||(this.$expected_bar_progress.setAttribute("x",this.$bar.getX()),this.compute_expected_progress(),this.$expected_bar_progress.setAttribute("width",this.gantt.options.column_width*this.duration*(this.expected_progress/100)||0))}update_progressbar_position(){this.invalid||this.gantt.options.readonly||(this.$bar_progress.setAttribute("x",this.$bar.getX()),this.$bar_progress.setAttribute("width",this.$bar.getWidth()*(this.task.progress/100)))}update_label_position(){const t=this.bar_group.querySelector(".img_mask")||"",e=this.$bar,s=this.group.querySelector(".bar-label"),i=this.group.querySelector(".bar-img");let r=5,n=this.image_size+10;const a=s.getBBox().width,d=e.getWidth();a>d?(s.classList.add("big"),i?(i.setAttribute("x",e.getX()+e.getWidth()+r),t.setAttribute("x",e.getX()+e.getWidth()+r),s.setAttribute("x",e.getX()+e.getWidth()+n)):s.setAttribute("x",e.getX()+e.getWidth()+r)):(s.classList.remove("big"),i?(i.setAttribute("x",e.getX()+r),t.setAttribute("x",e.getX()+r),s.setAttribute("x",e.getX()+d/2+n)):s.setAttribute("x",e.getX()+d/2-a/2))}update_handle_position(){if(this.invalid||this.gantt.options.readonly)return;const t=this.$bar;this.handle_group.querySelector(".handle.left").setAttribute("x",t.getX()-12),this.handle_group.querySelector(".handle.right").setAttribute("x",t.getEndX()+4);const e=this.group.querySelector(".handle.progress");e&&e.setAttribute("cx",this.$bar_progress.getEndX())}update_arrow_position(){this.arrows=this.arrows||[];for(let t of this.arrows)t.update()}}class C{constructor(t,e,s){this.gantt=t,this.from_task=e,this.to_task=s,this.calculate_path(),this.draw()}calculate_path(){let t=this.from_task.$bar.getX()+this.from_task.$bar.getWidth()/2;const e=()=>this.to_task.$bar.getX()<t+this.gantt.options.padding&&t>this.from_task.$bar.getX()+this.gantt.options.padding;for(;e();)t-=10;const s=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,i=this.to_task.$bar.getX()-this.gantt.options.padding/2-7,r=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,n=this.from_task.task._index>this.to_task.task._index,a=this.gantt.options.arrow_curve,d=n?1:0,p=n?-a:a,c=n?r+this.gantt.options.arrow_curve:r-this.gantt.options.arrow_curve;if(this.path=`
             M ${t} ${s}
             V ${c}
             a ${a} ${a} 0 0 ${d} ${a} ${p}
@@ -20,4 +20,4 @@
             <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(t){if(!t.target_element)throw new Error("target_element is required to show popup");const e=t.target_element;if(this.custom_html){let i=this.custom_html(t.task);i+='<div class="pointer"></div>',this.parent.innerHTML=i,this.pointer=this.parent.querySelector(".pointer")}else this.title.innerHTML=t.title,this.subtitle.innerHTML=t.subtitle;let s;e instanceof HTMLElement?s=e.getBoundingClientRect():e instanceof SVGElement&&(s=t.target_element.getBBox()),this.parent.style.left=t.x-this.parent.clientWidth/2+"px",this.parent.style.top=s.y+s.height+10+"px",this.pointer.style.left=this.parent.clientWidth/2+"px",this.pointer.style.top="-15px",this.parent.style.opacity=1}hide(){this.parent.style.opacity=0,this.parent.style.left=0}}const l={HOUR:"Hour",QUARTER_DAY:"Quarter Day",HALF_DAY:"Half Day",DAY:"Day",WEEK:"Week",MONTH:"Month",YEAR:"Year"},I={HOUR:["7d","7d"],QUARTER_DAY:["7d","7d"],HALF_DAY:["7d","7d"],DAY:["1m","1m"],WEEK:["1m","1m"],MONTH:["1m","1m"],YEAR:["2y","2y"]},R={header_height:65,column_width:30,view_modes:[...Object.values(l)],bar_height:30,bar_corner_radius:3,arrow_curve:5,padding:18,view_mode:"Day",date_format:"YYYY-MM-DD",show_expected_progress:!1,popup:null,language:"en",readonly:!1,progress_readonly:!1,dates_readonly:!1,highlight_weekend:!0,scroll_to:"start",lines:"both",auto_move_label:!0,today_button:!0,view_mode_select:!1};class T{constructor(t,e,s){this.setup_wrapper(t),this.setup_options(s),this.setup_tasks(e),this.change_view_mode(),this.bind_events()}setup_wrapper(t){let e,s;if(typeof t=="string"&&(t=document.querySelector(t)),t instanceof HTMLElement)s=t,e=t.querySelector("svg");else if(t instanceof SVGElement)e=t;else throw new TypeError("Frappe Gantt only supports usage of a string CSS selector, HTML DOM element or SVG DOM element for the 'element' parameter");e?(this.$svg=e,this.$svg.classList.add("gantt")):this.$svg=g("svg",{append_to:s,class:"gantt"}),this.$container=document.createElement("div"),this.$container.classList.add("gantt-container"),this.$svg.parentElement.appendChild(this.$container),this.$container.appendChild(this.$svg),this.$popup_wrapper=document.createElement("div"),this.$popup_wrapper.classList.add("popup-wrapper"),this.$container.appendChild(this.$popup_wrapper)}setup_options(t){this.options={...R,...t},t.view_mode_padding||(t.view_mode_padding={});for(let[e,s]of Object.entries(t.view_mode_padding))typeof s=="string"&&(t.view_mode_padding[e]=[s,s]);this.options.view_mode_padding={...I,...t.view_mode_padding}}setup_tasks(t){this.tasks=t.map((e,s)=>{if(e._start=h.parse(e.start),e.end===void 0&&e.duration!==void 0&&(e.end=e._start,e.duration.split(" ").forEach(a=>{let{duration:d,scale:p}=h.parse_duration(a);e.end=h.add(e.end,d,p)})),e._end=h.parse(e.end),h.diff(e._end,e._start,"year")<0)throw Error("start of task can't be after end of task: in task #, "+(s+1));if(h.diff(e._end,e._start,"year")>10&&(e.end=null),e._index=s,!e.start&&!e.end){const n=h.today();e._start=n,e._end=h.add(n,2,"day")}if(!e.start&&e.end&&(e._start=h.add(e._end,-2,"day")),e.start&&!e.end&&(e._end=h.add(e._start,2,"day")),h.get_date_values(e._end).slice(3).every(n=>n===0)&&(e._end=h.add(e._end,24,"hour")),(!e.start||!e.end)&&(e.invalid=!0),typeof e.dependencies=="string"||!e.dependencies){let n=[];e.dependencies&&(n=e.dependencies.split(",").map(a=>a.trim().replaceAll(" ","_")).filter(a=>a)),e.dependencies=n}return e.id?typeof e.id=="string"?e.id=e.id.replaceAll(" ","_"):e.id=`${e.id}`:e.id=F(e),e}),this.setup_dependencies()}setup_dependencies(){this.dependency_map={};for(let t of this.tasks)for(let e of t.dependencies)this.dependency_map[e]=this.dependency_map[e]||[],this.dependency_map[e].push(t.id)}refresh(t){this.setup_tasks(t),this.change_view_mode()}change_view_mode(t=this.options.view_mode){this.update_view_scale(t),this.setup_dates(),this.render(),this.trigger_event("view_change",[t])}update_view_scale(t){this.options.view_mode=t,t===l.HOUR?(this.options.step=24/24,this.options.column_width=38):t===l.DAY?(this.options.step=24,this.options.column_width=38):t===l.HALF_DAY?(this.options.step=24/2,this.options.column_width=38):t===l.QUARTER_DAY?(this.options.step=24/4,this.options.column_width=38):t===l.WEEK?(this.options.step=24*7,this.options.column_width=140):t===l.MONTH?(this.options.step=24*30,this.options.column_width=120):t===l.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 a of this.tasks)(!this.gantt_start||a._start<this.gantt_start)&&(this.gantt_start=a._start),(!this.gantt_end||a._end>this.gantt_end)&&(this.gantt_end=a._end);let t,e;this.gantt_start?t=h.start_of(this.gantt_start,"day"):t=new Date,this.gantt_end?e=h.start_of(this.gantt_end,"day"):e=new Date;let s;for(let[a,d]of Object.entries(l))d===this.options.view_mode&&(s=a);const[i,r]=this.options.view_mode_padding[s].map(h.parse_duration);t=h.add(t,-i.duration,i.scale);let n;this.view_is(l.YEAR)?n="YYYY":this.view_is(l.MONTH)?n="YYYY-MM":this.view_is(l.DAY)?n="YYYY-MM-DD":n="YYYY-MM-DD HH",this.gantt_start=h.parse(h.format(t,n)),this.gantt_start.setHours(0,0,0,0),this.gantt_end=h.add(e,r.duration,r.scale)}setup_date_values(){this.dates=[];let t=null;for(;t===null||t<this.gantt_end;)t?this.view_is(l.YEAR)?t=h.add(t,1,"year"):this.view_is(l.MONTH)?t=h.add(t,1,"month"):t=h.add(t,this.options.step,"hour"):t=h.clone(this.gantt_start),this.dates.push(t)}bind_events(){this.options.readonly||(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_grid_extras(),this.make_arrows(),this.map_arrows_on_bars(),this.set_width(),this.set_scroll_position(this.options.scroll_to)}setup_layers(){this.layers={};const t=["grid","arrow","progress","bar","details"];for(let e of t)this.layers[e]=g("g",{class:e,append_to:this.$svg})}make_grid(){this.make_grid_background(),this.make_grid_rows(),this.make_grid_header()}make_grid_extras(){this.make_grid_highlights(),this.make_grid_ticks()}make_grid_background(){const t=this.dates.length*this.options.column_width,e=this.options.header_height+this.options.padding+(this.options.bar_height+this.options.padding)*this.tasks.length;g("rect",{x:0,y:0,width:t,height:e,class:"grid-background",append_to:this.$svg}),_.attr(this.$svg,{height:e+this.options.padding+100,width:"100%"})}make_grid_rows(){const t=g("g",{append_to:this.layers.grid}),e=this.dates.length*this.options.column_width,s=this.options.bar_height+this.options.padding;let i=this.options.header_height+this.options.padding/2;for(let r of this.tasks)g("rect",{x:0,y:i,width:e,height:s,class:"grid-row",append_to:t}),this.options.lines==="both"||this.options.lines,i+=this.options.bar_height+this.options.padding}make_grid_header(){document.querySelector(".grid-header");let t=document.createElement("div");t.style.height=this.options.header_height+10+"px",t.style.width=this.dates.length*this.options.column_width+"px",t.classList.add("grid-header"),this.$header=t,this.$container.appendChild(t);let e=document.createElement("div");e.classList.add("upper-header"),this.$upper_header=e,this.$header.appendChild(e);let s=document.createElement("div");s.classList.add("lower-header"),this.$lower_header=s,this.$header.appendChild(s),this.make_side_header()}make_side_header(){let t=document.createElement("div");if(t.classList.add("side-header"),this.options.view_mode_select){const r=document.createElement("select");r.classList.add("viewmode-select");const n=document.createElement("option");n.selected=!0,n.disabled=!0,n.textContent="Mode",r.appendChild(n);for(const a in l){const d=document.createElement("option");d.value=l[a],d.textContent=l[a],r.appendChild(d)}r.addEventListener("change",(function(){this.change_view_mode(r.value)}).bind(this)),t.appendChild(r)}if(this.options.today_button){let r=document.createElement("button");r.classList.add("today-button"),r.textContent="Today",r.onclick=this.scroll_today.bind(this),t.appendChild(r)}this.$header.appendChild(t);const{left:e,y:s}=this.$header.getBoundingClientRect(),i=Math.min(this.$header.clientWidth,this.$container.clientWidth);t.style.left=e+this.$container.scrollLeft+i-t.clientWidth+"px",t.style.top=s+10+"px"}make_grid_ticks(){if(!["both","vertical","horizontal"].includes(this.options.lines))return;let t=0,e=this.options.header_height+this.options.padding/2,s=(this.options.bar_height+this.options.padding)*this.tasks.length,i=g("g",{class:"lines_layer",append_to:this.layers.grid}),r=this.options.header_height+this.options.padding/2;const n=this.dates.length*this.options.column_width,a=this.options.bar_height+this.options.padding;if(this.options.lines!=="vertical")for(let d of this.tasks)g("line",{x1:0,y1:r+a,x2:n,y2:r+a,class:"row-line",append_to:i}),r+=a;if(this.options.lines!=="horizontal")for(let d of this.dates){let p="tick";this.view_is(l.DAY)&&d.getDate()===1&&(p+=" thick"),this.view_is(l.WEEK)&&d.getDate()>=1&&d.getDate()<8&&(p+=" thick"),this.view_is(l.MONTH)&&d.getMonth()%3===0&&(p+=" thick"),g("path",{d:`M ${t} ${e} v ${s}`,class:p,append_to:this.layers.grid}),this.view_is(l.MONTH)?t+=h.get_days_in_month(d)*this.options.column_width/30:t+=this.options.column_width}}highlightWeekends(){if(!(!this.view_is("Day")&&!this.view_is("Half Day"))){for(let t=new Date(this.gantt_start);t<=this.gantt_end;t.setDate(t.getDate()+1))if(t.getDay()===0||t.getDay()===6){const e=h.diff(t,this.gantt_start,"hour")/this.options.step*this.options.column_width,s=(this.options.bar_height+this.options.padding)*this.tasks.length;g("rect",{x:e,y:this.options.header_height+this.options.padding/2,width:(this.view_is("Day")?1:2)*this.options.column_width,height:s,class:"holiday-highlight",append_to:this.layers.grid})}}}computeGridHighlightDimensions(t){let e=this.options.column_width/2;if(this.view_is(l.DAY)){let s=h.today();return{x:e+h.diff(s,this.gantt_start,"hour")/this.options.step*this.options.column_width,date:s}}for(let s of this.dates){const i=new Date,r=new Date(s),n=new Date(s);switch(t){case l.WEEK:n.setDate(s.getDate()+7);break;case l.MONTH:n.setMonth(s.getMonth()+1);break;case l.YEAR:n.setFullYear(s.getFullYear()+1);break}if(i>=r&&i<=n)return{x:e,date:r};e+=this.options.column_width}}make_grid_highlights(){if(this.options.highlight_weekend&&this.highlightWeekends(),this.view_is(l.DAY)||this.view_is(l.WEEK)||this.view_is(l.MONTH)||this.view_is(l.YEAR)){const{x:t,date:e}=this.computeGridHighlightDimensions(this.options.view_mode),s=this.options.header_height+this.options.padding/2,i=(this.options.bar_height+this.options.padding)*this.tasks.length;this.$current_highlight=this.create_el({top:s,left:t,height:i,classes:"current-highlight",append_to:this.$container});let r=document.getElementById(h.format(e).replaceAll(" ","_"));r&&(r.classList.add("current-date-highlight"),r.style.top=+r.style.top.slice(0,-2)-4+"px",r.style.left=+r.style.left.slice(0,-2)-8+"px")}}create_el({left:t,top:e,width:s,height:i,id:r,classes:n,append_to:a}){let d=document.createElement("div");return d.classList.add(n),d.style.top=e+"px",d.style.left=t+"px",r&&(d.id=r),s&&(d.style.width=i+"px"),i&&(d.style.height=i+"px"),a.appendChild(d),d}make_dates(){this.upper_texts_x={},this.get_dates_to_draw().forEach((t,e)=>{let s=this.create_el({left:t.lower_x,top:t.lower_y,id:t.formatted_date,classes:"lower-text",append_to:this.$lower_header});if(s.innerText=t.lower_text,s.style.left=+s.style.left.slice(0,-2)-s.clientWidth/2+"px",t.upper_text){this.upper_texts_x[t.upper_text]=t.upper_x;let i=document.createElement("div");i.classList.add("upper-text"),i.style.left=t.upper_x+"px",i.style.top=t.upper_y+"px",i.innerText=t.upper_text,this.$upper_header.appendChild(i),t.upper_x>this.layers.grid.getBBox().width&&i.remove()}})}get_dates_to_draw(){let t=null;return this.dates.map((s,i)=>{const r=this.get_date_info(s,t,i);return t=r,r})}get_date_info(t,e){let s=e?e.date:h.add(t,1,"day");const i={Hour_lower:h.format(t,"HH",this.options.language),"Quarter Day_lower":h.format(t,"HH",this.options.language),"Half Day_lower":h.format(t,"HH",this.options.language),Day_lower:t.getDate()!==s.getDate()?h.format(t,"D",this.options.language):"",Week_lower:t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language),Month_lower:h.format(t,"MMMM",this.options.language),Year_lower:h.format(t,"YYYY",this.options.language),Hour_upper:t.getDate()!==s.getDate()?h.format(t,"D MMMM",this.options.language):"","Quarter Day_upper":t.getDate()!==s.getDate()?h.format(t,"D MMM",this.options.language):"","Half Day_upper":t.getDate()!==s.getDate()?t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language):"",Day_upper:t.getMonth()!==s.getMonth()||!e?h.format(t,"MMMM",this.options.language):"",Week_upper:t.getMonth()!==s.getMonth()?h.format(t,"MMMM",this.options.language):"",Month_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):"",Year_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):""};let r=this.view_is(l.MONTH)?h.get_days_in_month(t)*this.options.column_width/30:this.options.column_width;const n={x:e?e.base_pos_x+e.column_width:0,lower_y:this.options.header_height-20,upper_y:this.options.header_height-50},a={Hour_lower:r/2,Hour_upper:r*12,"Quarter Day_lower":r/2,"Quarter Day_upper":r*2,"Half Day_lower":r/2,"Half Day_upper":r,Day_lower:r/2,Day_upper:r/2,Week_lower:r/2,Week_upper:r*4/2,Month_lower:r/2,Month_upper:r/2,Year_lower:r/2,Year_upper:r*30/2};return{date:t,formatted_date:h.format(t).replaceAll(" ","_"),column_width:r,base_pos_x:n.x,upper_text:this.options.lower_text?this.options.upper_text(t,this.options.view_mode,i[`${this.options.view_mode}_upper`]):i[`${this.options.view_mode}_upper`],lower_text:this.options.lower_text?this.options.lower_text(t,this.options.view_mode,i[`${this.options.view_mode}_lower`]):i[`${this.options.view_mode}_lower`],upper_x:n.x+a[`${this.options.view_mode}_upper`],upper_y:n.upper_y,lower_x:n.x+a[`${this.options.view_mode}_lower`],lower_y:n.lower_y}}make_bars(){this.bars=this.tasks.map(t=>{const e=new O(this,t);return this.layers.bar.appendChild(e.group),e})}make_arrows(){this.arrows=[];for(let t of this.tasks){let e=[];e=t.dependencies.map(s=>{const i=this.get_task(s);if(!i)return;const r=new C(this,this.bars[i._index],this.bars[t._index]);return this.layers.arrow.appendChild(r.element),r}).filter(Boolean),this.arrows=this.arrows.concat(e)}}map_arrows_on_bars(){for(let t of this.bars)t.arrows=this.arrows.filter(e=>e.from_task.task.id===t.task.id||e.to_task.task.id===t.task.id)}set_width(){const t=this.$svg.getBoundingClientRect().width,e=this.$svg.querySelector(".grid .grid-row")?this.$svg.querySelector(".grid .grid-row").getAttribute("width"):0;t<e&&this.$svg.setAttribute("width",e)}set_scroll_position(t){if(!t||t==="start")t=this.gantt_start;else{if(t==="today")return this.scroll_today();typeof t=="string"&&(t=h.parse(t))}const e=this.$svg.parentElement;if(!e)return;const i=(h.diff(t,this.gantt_start,"hour")+24)/this.options.step*this.options.column_width-this.options.column_width;e.scrollTo({left:i,behavior:"smooth"})}scroll_today(){this.set_scroll_position(new Date)}bind_grid_click(){_.on(this.$svg,"click",".grid-row, .grid-header",()=>{this.unselect_all(),this.hide_popup()})}bind_bar_events(){let t=!1,e=0,s=0,i=!1,r=!1,n=null,a=[];this.bar_being_dragged=null;function d(){return t||i||r}this.$svg.onclick=p=>{p.target.classList.contains("grid-row")&&this.unselect_all()},_.on(this.$svg,"mousedown",".bar-wrapper, .handle",(p,c)=>{const u=_.closest(".bar-wrapper",c);a.forEach(w=>w.group.classList.remove("active")),c.classList.contains("left")?i=!0:c.classList.contains("right")?r=!0:c.classList.contains("bar-wrapper")&&(t=!0),u.classList.add("active"),this.popup&&this.popup.parent.classList.add("hidden"),e=p.offsetX||p.layerX,p.offsetY||p.layerY,n=u.getAttribute("data-id"),a=[n,...this.get_all_dependent_tasks(n)].map(w=>this.get_bar(w)),this.bar_being_dragged=n,a.forEach(w=>{const b=w.$bar;b.ox=b.getX(),b.oy=b.getY(),b.owidth=b.getWidth(),b.finaldx=0})}),_.on(this.$container,"scroll",p=>{let c=document.querySelectorAll(".bar-wrapper"),u=[];const f=[];let w;s&&(w=p.currentTarget.scrollLeft-s);const b=p.currentTarget.scrollLeft/this.options.column_width*this.options.step/24;let v="D MMM";["Year","Month"].includes(this.options.view_mode)?v="YYYY":["Day","Week"].includes(this.options.view_mode)?v="MMMM":this.view_is("Half Day")?v="D":this.view_is("Hour")&&(v="D MMMM");let z=h.format(h.add(this.gantt_start,b,"day"),v);const $=Array.from(document.querySelectorAll(".upper-text")).find(m=>m.textContent===z);if($&&!$.classList.contains("current-upper")){const m=document.querySelector(".current-upper");m&&(m.classList.remove("current-upper"),m.style.left=this.upper_texts_x[m.textContent]+"px",m.style.top=this.options.header_height-50+"px"),$.classList.add("current-upper");let H=this.$svg.getBoundingClientRect();$.style.left=H.x+this.$container.scrollLeft+10+"px",$.style.top=H.y+this.options.header_height-50+"px"}Array.prototype.forEach.call(c,function(m,H){f.push(m.getAttribute("data-id"))}),w&&(u=f.map(m=>this.get_bar(m)),this.options.auto_move_label&&u.forEach(m=>{m.update_label_position_on_horizontal_scroll({x:w,sx:p.currentTarget.scrollLeft})})),s=p.currentTarget.scrollLeft}),_.on(this.$svg,"mousemove",p=>{if(!d())return;const c=(p.offsetX||p.layerX)-e;a.forEach(u=>{const f=u.$bar;f.finaldx=this.get_snap_position(c),this.hide_popup(),i?n===u.task.id?u.update_bar_position({x:f.ox+f.finaldx,width:f.owidth-f.finaldx}):u.update_bar_position({x:f.ox+f.finaldx}):r?n===u.task.id&&u.update_bar_position({width:f.owidth+f.finaldx}):t&&!this.options.readonly&&!this.options.dates_readonly&&u.update_bar_position({x:f.ox+f.finaldx})})}),document.addEventListener("mouseup",p=>{t=!1,i=!1,r=!1}),_.on(this.$svg,"mouseup",p=>{this.bar_being_dragged=null,a.forEach(c=>{c.$bar.finaldx&&(c.date_changed(),c.set_action_completed())})}),this.bind_bar_progress()}bind_bar_progress(){let t=0,e=null,s=null,i=null,r=null;_.on(this.$svg,"mousedown",".handle.progress",(n,a)=>{e=!0,t=n.offsetX||n.layerX,n.offsetY||n.layerY;const p=_.closest(".bar-wrapper",a).getAttribute("data-id");s=this.get_bar(p),i=s.$bar_progress,r=s.$bar,i.finaldx=0,i.owidth=i.getWidth(),i.min_dx=-i.getWidth(),i.max_dx=r.getWidth()-i.getWidth()}),_.on(this.$svg,"mousemove",n=>{if(!e)return;let a=(n.offsetX||n.layerX)-t;a>i.max_dx&&(a=i.max_dx),a<i.min_dx&&(a=i.min_dx);const d=s.$handle_progress;_.attr(i,"width",i.owidth+a),_.attr(d,"cx",i.getEndX()),i.finaldx=a}),_.on(this.$svg,"mouseup",()=>{e=!1,i&&i.finaldx&&(i.finaldx=0,s.progress_changed(),s.set_action_completed(),s=null,i=null,r=null)})}get_all_dependent_tasks(t){let e=[],s=[t];for(;s.length;){const i=s.reduce((r,n)=>(r=r.concat(this.dependency_map[n]),r),[]);e=e.concat(i),s=i.filter(r=>!s.includes(r))}return e.filter(Boolean)}get_snap_position(t){let e=t,s,i;return this.view_is(l.WEEK)?(s=t%(this.options.column_width/7),i=e-s+(s<this.options.column_width/14?0:this.options.column_width/7)):this.view_is(l.MONTH)?(s=t%(this.options.column_width/30),i=e-s+(s<this.options.column_width/60?0:this.options.column_width/30)):(s=t%this.options.column_width,i=e-s+(s<this.options.column_width/2?0:this.options.column_width)),i}unselect_all(){[...this.$svg.querySelectorAll(".bar-wrapper")].forEach(t=>{t.classList.remove("active")}),this.popup&&this.popup.parent.classList.remove("hidden")}view_is(t){return typeof t=="string"?this.options.view_mode===t:Array.isArray(t)?t.some(e=>this.options.view_mode===e):!1}get_task(t){return this.tasks.find(e=>e.id===t)}get_bar(t){return this.bars.find(e=>e.task.id===t)}show_popup(t){this.options.popup!==!1&&(this.popup||(this.popup=new N(this.$popup_wrapper,this.options.popup)),this.popup.show(t))}hide_popup(){this.popup&&this.popup.hide()}trigger_event(t,e){this.options["on_"+t]&&this.options["on_"+t].apply(null,e)}get_oldest_starting_date(){return this.tasks.length?this.tasks.map(t=>t._start).reduce((t,e)=>e<=t?e:t):new Date}clear(){var t,e,s,i,r,n;this.$svg.innerHTML="",(e=(t=this.$header)==null?void 0:t.remove)==null||e.call(t),(i=(s=this.$current_highlight)==null?void 0:s.remove)==null||i.call(s),(n=(r=this.popup)==null?void 0:r.hide)==null||n.call(r)}}T.VIEW_MODE=l;function F(o){return o.name+"_"+Math.random().toString(36).slice(2,12)}return T});
+        `,this.hide(),this.title=this.parent.querySelector(".title"),this.subtitle=this.parent.querySelector(".subtitle"),this.pointer=this.parent.querySelector(".pointer")}show(t){if(!t.target_element)throw new Error("target_element is required to show popup");const e=t.target_element;if(this.custom_html){let i=this.custom_html(t.task);i+='<div class="pointer"></div>',this.parent.innerHTML=i,this.pointer=this.parent.querySelector(".pointer")}else this.title.innerHTML=t.title,this.subtitle.innerHTML=t.subtitle;let s;e instanceof HTMLElement?s=e.getBoundingClientRect():e instanceof SVGElement&&(s=t.target_element.getBBox()),this.parent.style.left=t.x-this.parent.clientWidth/2+"px",this.parent.style.top=s.y+s.height+10+"px",this.pointer.style.left=this.parent.clientWidth/2+"px",this.pointer.style.top="-15px",this.parent.style.opacity=1}hide(){this.parent.style.opacity=0,this.parent.style.left=0}}const l={HOUR:"Hour",QUARTER_DAY:"Quarter Day",HALF_DAY:"Half Day",DAY:"Day",WEEK:"Week",MONTH:"Month",YEAR:"Year"},R={HOUR:["7d","7d"],QUARTER_DAY:["7d","7d"],HALF_DAY:["7d","7d"],DAY:["1m","1m"],WEEK:["1m","1m"],MONTH:["1m","1m"],YEAR:["2y","2y"]},B={header_height:65,column_width:30,view_modes:[...Object.values(l)],bar_height:30,bar_corner_radius:3,arrow_curve:5,padding:18,view_mode:"Day",date_format:"YYYY-MM-DD",show_expected_progress:!1,popup:null,language:"en",readonly:!1,progress_readonly:!1,dates_readonly:!1,highlight_weekend:!0,scroll_to:"start",lines:"both",auto_move_label:!0,today_button:!0,view_mode_select:!1};class T{constructor(t,e,s){this.setup_wrapper(t),this.setup_options(s),this.setup_tasks(e),this.change_view_mode(),this.bind_events()}setup_wrapper(t){let e,s;if(typeof t=="string"&&(t=document.querySelector(t)),t instanceof HTMLElement)s=t,e=t.querySelector("svg");else if(t instanceof SVGElement)e=t;else throw new TypeError("Frappe Gantt only supports usage of a string CSS selector, HTML DOM element or SVG DOM element for the 'element' parameter");e?(this.$svg=e,this.$svg.classList.add("gantt")):this.$svg=g("svg",{append_to:s,class:"gantt"}),this.$container=document.createElement("div"),this.$container.classList.add("gantt-container"),this.$svg.parentElement.appendChild(this.$container),this.$container.appendChild(this.$svg),this.$popup_wrapper=document.createElement("div"),this.$popup_wrapper.classList.add("popup-wrapper"),this.$container.appendChild(this.$popup_wrapper)}setup_options(t){this.options={...B,...t},t.view_mode_padding||(t.view_mode_padding={});for(let[e,s]of Object.entries(t.view_mode_padding))typeof s=="string"&&(t.view_mode_padding[e]=[s,s]);this.options.view_mode_padding={...R,...t.view_mode_padding}}setup_tasks(t){this.tasks=t.map((e,s)=>{if(e._start=h.parse(e.start),e.end===void 0&&e.duration!==void 0&&(e.end=e._start,e.duration.split(" ").forEach(a=>{let{duration:d,scale:p}=h.parse_duration(a);e.end=h.add(e.end,d,p)})),e._end=h.parse(e.end),h.diff(e._end,e._start,"year")<0)throw Error("start of task can't be after end of task: in task #, "+(s+1));if(h.diff(e._end,e._start,"year")>10&&(e.end=null),e._index=s,!e.start&&!e.end){const n=h.today();e._start=n,e._end=h.add(n,2,"day")}if(!e.start&&e.end&&(e._start=h.add(e._end,-2,"day")),e.start&&!e.end&&(e._end=h.add(e._start,2,"day")),h.get_date_values(e._end).slice(3).every(n=>n===0)&&(e._end=h.add(e._end,24,"hour")),(!e.start||!e.end)&&(e.invalid=!0),typeof e.dependencies=="string"||!e.dependencies){let n=[];e.dependencies&&(n=e.dependencies.split(",").map(a=>a.trim().replaceAll(" ","_")).filter(a=>a)),e.dependencies=n}return e.id?typeof e.id=="string"?e.id=e.id.replaceAll(" ","_"):e.id=`${e.id}`:e.id=I(e),e}),this.setup_dependencies()}setup_dependencies(){this.dependency_map={};for(let t of this.tasks)for(let e of t.dependencies)this.dependency_map[e]=this.dependency_map[e]||[],this.dependency_map[e].push(t.id)}refresh(t){this.setup_tasks(t),this.change_view_mode()}change_view_mode(t=this.options.view_mode){this.update_view_scale(t),this.setup_dates(),this.render(),this.trigger_event("view_change",[t])}update_view_scale(t){this.options.view_mode=t,t===l.HOUR?(this.options.step=24/24,this.options.column_width=38):t===l.DAY?(this.options.step=24,this.options.column_width=38):t===l.HALF_DAY?(this.options.step=24/2,this.options.column_width=38):t===l.QUARTER_DAY?(this.options.step=24/4,this.options.column_width=38):t===l.WEEK?(this.options.step=24*7,this.options.column_width=140):t===l.MONTH?(this.options.step=24*30,this.options.column_width=120):t===l.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 a of this.tasks)(!this.gantt_start||a._start<this.gantt_start)&&(this.gantt_start=a._start),(!this.gantt_end||a._end>this.gantt_end)&&(this.gantt_end=a._end);let t,e;this.gantt_start?t=h.start_of(this.gantt_start,"day"):t=new Date,this.gantt_end?e=h.start_of(this.gantt_end,"day"):e=new Date;let s;for(let[a,d]of Object.entries(l))d===this.options.view_mode&&(s=a);const[i,r]=this.options.view_mode_padding[s].map(h.parse_duration);t=h.add(t,-i.duration,i.scale);let n;this.view_is(l.YEAR)?n="YYYY":this.view_is(l.MONTH)?n="YYYY-MM":this.view_is(l.DAY)?n="YYYY-MM-DD":n="YYYY-MM-DD HH",this.gantt_start=h.parse(h.format(t,n)),this.gantt_start.setHours(0,0,0,0),this.gantt_end=h.add(e,r.duration,r.scale)}setup_date_values(){this.dates=[];let t=null;for(;t===null||t<this.gantt_end;)t?this.view_is(l.YEAR)?t=h.add(t,1,"year"):this.view_is(l.MONTH)?t=h.add(t,1,"month"):t=h.add(t,this.options.step,"hour"):t=h.clone(this.gantt_start),this.dates.push(t)}bind_events(){this.options.readonly||(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_grid_extras(),this.make_arrows(),this.map_arrows_on_bars(),this.set_width(),this.set_scroll_position(this.options.scroll_to)}setup_layers(){this.layers={};const t=["grid","arrow","progress","bar","details"];for(let e of t)this.layers[e]=g("g",{class:e,append_to:this.$svg})}make_grid(){this.make_grid_background(),this.make_grid_rows(),this.make_grid_header()}make_grid_extras(){this.make_grid_highlights(),this.make_grid_ticks()}make_grid_background(){const t=this.dates.length*this.options.column_width,e=this.options.header_height+this.options.padding+(this.options.bar_height+this.options.padding)*this.tasks.length;g("rect",{x:0,y:0,width:t,height:e,class:"grid-background",append_to:this.$svg}),_.attr(this.$svg,{height:e+this.options.padding+100,width:"100%"})}make_grid_rows(){const t=g("g",{append_to:this.layers.grid}),e=this.dates.length*this.options.column_width,s=this.options.bar_height+this.options.padding;let i=this.options.header_height+this.options.padding/2;for(let r of this.tasks)g("rect",{x:0,y:i,width:e,height:s,class:"grid-row",append_to:t}),this.options.lines==="both"||this.options.lines,i+=this.options.bar_height+this.options.padding}make_grid_header(){let t=document.createElement("div");t.style.height=this.options.header_height+10+"px",t.style.width=this.dates.length*this.options.column_width+"px",t.classList.add("grid-header"),this.$header=t,this.$container.appendChild(t);let e=document.createElement("div");e.classList.add("upper-header"),this.$upper_header=e,this.$header.appendChild(e);let s=document.createElement("div");s.classList.add("lower-header"),this.$lower_header=s,this.$header.appendChild(s),this.make_side_header()}make_side_header(){let t=document.createElement("div");if(t.classList.add("side-header"),this.options.view_mode_select){const s=document.createElement("select");s.classList.add("viewmode-select");const i=document.createElement("option");i.selected=!0,i.disabled=!0,i.textContent="Mode",s.appendChild(i);for(const r in l){const n=document.createElement("option");n.value=l[r],n.textContent=l[r],s.appendChild(n)}s.addEventListener("change",(function(){this.change_view_mode(s.value)}).bind(this)),t.appendChild(s)}if(this.options.today_button){let s=document.createElement("button");s.classList.add("today-button"),s.textContent="Today",s.onclick=this.scroll_today.bind(this),t.appendChild(s)}this.$header.appendChild(t);function e(){const s=this.$container.getBoundingClientRect(),i=t.getBoundingClientRect(),{left:r,y:n}=this.$header.getBoundingClientRect();i.top<s.top||i.bottom>s.bottom?(t.style.position="absolute",t.style.top=`${container.scrollTop+i.top}px`):(t.style.position="fixed",t.style.top=n+10+"px");const a=Math.min(this.$header.clientWidth,this.$container.clientWidth);t.style.left=r+this.$container.scrollLeft+a-t.clientWidth+"px",button.style.left=`${s.left+20}px`}window.addEventListener("scroll",e),window.addEventListener("resize",e)}make_grid_ticks(){if(!["both","vertical","horizontal"].includes(this.options.lines))return;let t=0,e=this.options.header_height+this.options.padding/2,s=(this.options.bar_height+this.options.padding)*this.tasks.length,i=g("g",{class:"lines_layer",append_to:this.layers.grid}),r=this.options.header_height+this.options.padding/2;const n=this.dates.length*this.options.column_width,a=this.options.bar_height+this.options.padding;if(this.options.lines!=="vertical")for(let d of this.tasks)g("line",{x1:0,y1:r+a,x2:n,y2:r+a,class:"row-line",append_to:i}),r+=a;if(this.options.lines!=="horizontal")for(let d of this.dates){let p="tick";this.view_is(l.DAY)&&d.getDate()===1&&(p+=" thick"),this.view_is(l.WEEK)&&d.getDate()>=1&&d.getDate()<8&&(p+=" thick"),this.view_is(l.MONTH)&&d.getMonth()%3===0&&(p+=" thick"),g("path",{d:`M ${t} ${e} v ${s}`,class:p,append_to:this.layers.grid}),this.view_is(l.MONTH)?t+=h.get_days_in_month(d)*this.options.column_width/30:t+=this.options.column_width}}highlightWeekends(){if(!(!this.view_is("Day")&&!this.view_is("Half Day"))){for(let t=new Date(this.gantt_start);t<=this.gantt_end;t.setDate(t.getDate()+1))if(t.getDay()===0||t.getDay()===6){const e=h.diff(t,this.gantt_start,"hour")/this.options.step*this.options.column_width,s=(this.options.bar_height+this.options.padding)*this.tasks.length;g("rect",{x:e,y:this.options.header_height+this.options.padding/2,width:(this.view_is("Day")?1:2)*this.options.column_width,height:s,class:"holiday-highlight",append_to:this.layers.grid})}}}computeGridHighlightDimensions(t){let e=this.options.column_width/2;if(this.view_is(l.DAY)){let s=h.today();return{x:e+h.diff(s,this.gantt_start,"hour")/this.options.step*this.options.column_width,date:s}}for(let s of this.dates){const i=new Date,r=new Date(s),n=new Date(s);switch(t){case l.WEEK:n.setDate(s.getDate()+7);break;case l.MONTH:n.setMonth(s.getMonth()+1);break;case l.YEAR:n.setFullYear(s.getFullYear()+1);break}if(i>=r&&i<=n)return{x:e,date:r};e+=this.options.column_width}}make_grid_highlights(){if(this.options.highlight_weekend&&this.highlightWeekends(),this.view_is(l.DAY)||this.view_is(l.WEEK)||this.view_is(l.MONTH)||this.view_is(l.YEAR)){const{x:t,date:e}=this.computeGridHighlightDimensions(this.options.view_mode);if(!this.dates.find(n=>n.getTime()==e.getTime()))return;const s=this.options.header_height+this.options.padding/2,i=(this.options.bar_height+this.options.padding)*this.tasks.length;this.$current_highlight=this.create_el({top:s,left:t,height:i,classes:"current-highlight",append_to:this.$container});let r=document.getElementById(h.format(e).replaceAll(" ","_"));r&&(r.classList.add("current-date-highlight"),r.style.top=+r.style.top.slice(0,-2)-4+"px",r.style.left=+r.style.left.slice(0,-2)-8+"px")}}create_el({left:t,top:e,width:s,height:i,id:r,classes:n,append_to:a}){let d=document.createElement("div");return d.classList.add(n),d.style.top=e+"px",d.style.left=t+"px",r&&(d.id=r),s&&(d.style.width=i+"px"),i&&(d.style.height=i+"px"),a.appendChild(d),d}make_dates(){this.upper_texts_x={},this.get_dates_to_draw().forEach((t,e)=>{let s=this.create_el({left:t.lower_x,top:t.lower_y,id:t.formatted_date,classes:"lower-text",append_to:this.$lower_header});if(s.innerText=t.lower_text,s.style.left=+s.style.left.slice(0,-2)-s.clientWidth/2+"px",t.upper_text){this.upper_texts_x[t.upper_text]=t.upper_x;let i=document.createElement("div");i.classList.add("upper-text"),i.style.left=t.upper_x+"px",i.style.top=t.upper_y+"px",i.innerText=t.upper_text,this.$upper_header.appendChild(i),t.upper_x>this.layers.grid.getBBox().width&&i.remove()}})}get_dates_to_draw(){let t=null;return this.dates.map((s,i)=>{const r=this.get_date_info(s,t,i);return t=r,r})}get_date_info(t,e){let s=e?e.date:h.add(t,1,"day");const i={Hour_lower:h.format(t,"HH",this.options.language),"Quarter Day_lower":h.format(t,"HH",this.options.language),"Half Day_lower":h.format(t,"HH",this.options.language),Day_lower:t.getDate()!==s.getDate()?h.format(t,"D",this.options.language):"",Week_lower:t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language),Month_lower:h.format(t,"MMMM",this.options.language),Year_lower:h.format(t,"YYYY",this.options.language),Hour_upper:t.getDate()!==s.getDate()?h.format(t,"D MMMM",this.options.language):"","Quarter Day_upper":t.getDate()!==s.getDate()?h.format(t,"D MMM",this.options.language):"","Half Day_upper":t.getDate()!==s.getDate()?t.getMonth()!==s.getMonth()?h.format(t,"D MMM",this.options.language):h.format(t,"D",this.options.language):"",Day_upper:t.getMonth()!==s.getMonth()||!e?h.format(t,"MMMM",this.options.language):"",Week_upper:t.getMonth()!==s.getMonth()?h.format(t,"MMMM",this.options.language):"",Month_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):"",Year_upper:t.getFullYear()!==s.getFullYear()?h.format(t,"YYYY",this.options.language):""};let r=this.view_is(l.MONTH)?h.get_days_in_month(t)*this.options.column_width/30:this.options.column_width;const n={x:e?e.base_pos_x+e.column_width:0,lower_y:this.options.header_height-20,upper_y:this.options.header_height-50},a={Hour_lower:r/2,Hour_upper:r*12,"Quarter Day_lower":r/2,"Quarter Day_upper":r*2,"Half Day_lower":r/2,"Half Day_upper":r,Day_lower:r/2,Day_upper:r/2,Week_lower:r/2,Week_upper:r*4/2,Month_lower:r/2,Month_upper:r/2,Year_lower:r/2,Year_upper:r*30/2};return{date:t,formatted_date:h.format(t).replaceAll(" ","_"),column_width:r,base_pos_x:n.x,upper_text:this.options.lower_text?this.options.upper_text(t,this.options.view_mode,i[`${this.options.view_mode}_upper`]):i[`${this.options.view_mode}_upper`],lower_text:this.options.lower_text?this.options.lower_text(t,this.options.view_mode,i[`${this.options.view_mode}_lower`]):i[`${this.options.view_mode}_lower`],upper_x:n.x+a[`${this.options.view_mode}_upper`],upper_y:n.upper_y,lower_x:n.x+a[`${this.options.view_mode}_lower`],lower_y:n.lower_y}}make_bars(){this.bars=this.tasks.map(t=>{const e=new O(this,t);return this.layers.bar.appendChild(e.group),e})}make_arrows(){this.arrows=[];for(let t of this.tasks){let e=[];e=t.dependencies.map(s=>{const i=this.get_task(s);if(!i)return;const r=new C(this,this.bars[i._index],this.bars[t._index]);return this.layers.arrow.appendChild(r.element),r}).filter(Boolean),this.arrows=this.arrows.concat(e)}}map_arrows_on_bars(){for(let t of this.bars)t.arrows=this.arrows.filter(e=>e.from_task.task.id===t.task.id||e.to_task.task.id===t.task.id)}set_width(){const t=this.$svg.getBoundingClientRect().width,e=this.$svg.querySelector(".grid .grid-row")?this.$svg.querySelector(".grid .grid-row").getAttribute("width"):0;t<e&&this.$svg.setAttribute("width",e)}set_scroll_position(t){if(!t||t==="start")t=this.gantt_start;else{if(t==="today")return this.scroll_today();typeof t=="string"&&(t=h.parse(t))}const e=this.$svg.parentElement;if(!e)return;const i=(h.diff(t,this.gantt_start,"hour")+24)/this.options.step*this.options.column_width-this.options.column_width;e.scrollTo({left:i,behavior:"smooth"})}scroll_today(){this.set_scroll_position(new Date)}bind_grid_click(){_.on(this.$svg,"click",".grid-row, .grid-header",()=>{this.unselect_all(),this.hide_popup()})}bind_bar_events(){let t=!1,e=0,s=0,i=!1,r=!1,n=null,a=[];this.bar_being_dragged=null;function d(){return t||i||r}this.$svg.onclick=p=>{p.target.classList.contains("grid-row")&&this.unselect_all()},_.on(this.$svg,"mousedown",".bar-wrapper, .handle",(p,c)=>{const u=_.closest(".bar-wrapper",c);a.forEach(w=>w.group.classList.remove("active")),c.classList.contains("left")?i=!0:c.classList.contains("right")?r=!0:c.classList.contains("bar-wrapper")&&(t=!0),u.classList.add("active"),this.popup&&this.popup.parent.classList.add("hidden"),this.popup&&this.popup.parent.classList.add("hidden"),e=p.offsetX||p.layerX,p.offsetY||p.layerY,n=u.getAttribute("data-id"),a=[n,...this.get_all_dependent_tasks(n)].map(w=>this.get_bar(w)),this.bar_being_dragged=n,a.forEach(w=>{const b=w.$bar;b.ox=b.getX(),b.oy=b.getY(),b.owidth=b.getWidth(),b.finaldx=0})}),_.on(this.$container,"scroll",p=>{let c=document.querySelectorAll(".bar-wrapper"),u=[];const f=[];let w;s&&(w=p.currentTarget.scrollLeft-s);const b=p.currentTarget.scrollLeft/this.options.column_width*this.options.step/24;let v="D MMM";["Year","Month"].includes(this.options.view_mode)?v="YYYY":["Day","Week"].includes(this.options.view_mode)?v="MMMM":this.view_is("Half Day")?v="D":this.view_is("Hour")&&(v="D MMMM");let z=h.format(h.add(this.gantt_start,b,"day"),v);const $=Array.from(document.querySelectorAll(".upper-text")).find(m=>m.textContent===z);if($&&!$.classList.contains("current-upper")){const m=document.querySelector(".current-upper");m&&(m.classList.remove("current-upper"),m.style.left=this.upper_texts_x[m.textContent]+"px",m.style.top=this.options.header_height-50+"px"),$.classList.add("current-upper");let H=this.$svg.getBoundingClientRect();$.style.left=H.x+this.$container.scrollLeft+10+"px",$.style.top=H.y+this.options.header_height-50+"px"}Array.prototype.forEach.call(c,function(m,H){f.push(m.getAttribute("data-id"))}),w&&(u=f.map(m=>this.get_bar(m)),this.options.auto_move_label&&u.forEach(m=>{m.update_label_position_on_horizontal_scroll({x:w,sx:p.currentTarget.scrollLeft})})),s=p.currentTarget.scrollLeft}),_.on(this.$svg,"mousemove",p=>{if(!d())return;const c=(p.offsetX||p.layerX)-e;a.forEach(u=>{const f=u.$bar;f.finaldx=this.get_snap_position(c),this.hide_popup(),i?n===u.task.id?u.update_bar_position({x:f.ox+f.finaldx,width:f.owidth-f.finaldx}):u.update_bar_position({x:f.ox+f.finaldx}):r?n===u.task.id&&u.update_bar_position({width:f.owidth+f.finaldx}):t&&!this.options.readonly&&!this.options.dates_readonly&&u.update_bar_position({x:f.ox+f.finaldx})})}),document.addEventListener("mouseup",p=>{t=!1,i=!1,r=!1}),_.on(this.$svg,"mouseup",p=>{this.bar_being_dragged=null,a.forEach(c=>{c.$bar.finaldx&&(c.date_changed(),c.set_action_completed())})}),this.bind_bar_progress()}bind_bar_progress(){let t=0,e=null,s=null,i=null,r=null;_.on(this.$svg,"mousedown",".handle.progress",(n,a)=>{e=!0,t=n.offsetX||n.layerX,n.offsetY||n.layerY;const p=_.closest(".bar-wrapper",a).getAttribute("data-id");s=this.get_bar(p),i=s.$bar_progress,r=s.$bar,i.finaldx=0,i.owidth=i.getWidth(),i.min_dx=-i.getWidth(),i.max_dx=r.getWidth()-i.getWidth()}),_.on(this.$svg,"mousemove",n=>{if(!e)return;let a=(n.offsetX||n.layerX)-t;a>i.max_dx&&(a=i.max_dx),a<i.min_dx&&(a=i.min_dx);const d=s.$handle_progress;_.attr(i,"width",i.owidth+a),_.attr(d,"cx",i.getEndX()),i.finaldx=a}),_.on(this.$svg,"mouseup",()=>{e=!1,i&&i.finaldx&&(i.finaldx=0,s.progress_changed(),s.set_action_completed(),s=null,i=null,r=null)})}get_all_dependent_tasks(t){let e=[],s=[t];for(;s.length;){const i=s.reduce((r,n)=>(r=r.concat(this.dependency_map[n]),r),[]);e=e.concat(i),s=i.filter(r=>!s.includes(r))}return e.filter(Boolean)}get_snap_position(t){let e=t,s,i;return this.view_is(l.WEEK)?(s=t%(this.options.column_width/7),i=e-s+(s<this.options.column_width/14?0:this.options.column_width/7)):this.view_is(l.MONTH)?(s=t%(this.options.column_width/30),i=e-s+(s<this.options.column_width/60?0:this.options.column_width/30)):(s=t%this.options.column_width,i=e-s+(s<this.options.column_width/2?0:this.options.column_width)),i}unselect_all(){[...this.$svg.querySelectorAll(".bar-wrapper")].forEach(t=>{t.classList.remove("active")}),this.popup&&this.popup.parent.classList.remove("hidden")}view_is(t){return typeof t=="string"?this.options.view_mode===t:Array.isArray(t)?t.some(e=>this.options.view_mode===e):!1}get_task(t){return this.tasks.find(e=>e.id===t)}get_bar(t){return this.bars.find(e=>e.task.id===t)}show_popup(t){this.options.popup!==!1&&(this.popup||(this.popup=new N(this.$popup_wrapper,this.options.popup)),this.popup.show(t))}hide_popup(){this.popup&&this.popup.hide()}trigger_event(t,e){this.options["on_"+t]&&this.options["on_"+t].apply(null,e)}get_oldest_starting_date(){return this.tasks.length?this.tasks.map(t=>t._start).reduce((t,e)=>e<=t?e:t):new Date}clear(){var t,e,s,i,r,n;this.$svg.innerHTML="",(e=(t=this.$header)==null?void 0:t.remove)==null||e.call(t),(i=(s=this.$current_highlight)==null?void 0:s.remove)==null||i.call(s),(n=(r=this.popup)==null?void 0:r.hide)==null||n.call(r)}}T.VIEW_MODE=l;function I(o){return o.name+"_"+Math.random().toString(36).slice(2,12)}return T});
diff --git a/dist/style.css b/dist/style.css
index 6b0668b..6ad17a2 100644
--- a/dist/style.css
+++ b/dist/style.css
@@ -1 +1 @@
-:root{--bar-color-dark: #616161;--bar-stroke-dark: #c6ccd2;--border-color-dark: #616161;--light-bg-dark: #3e3e3e;--light-border-color-dark: #3e3e3e;--text-muted-dark: #eee;--text-light-dark: #ececec;--text-color-dark: #f7f7f7;--blue-dark: #8a8aff}.dark>.gantt-container .gantt .grid-row{fill:#252525}.dark>.gantt-container .gantt .row-line{stroke:var(--light-border-color-dark)}.dark>.gantt-container .gantt .tick{stroke:var(--border-color-dark)}.dark>.gantt-container .gantt .holiday-highlight{fill:var(--light-bg-dark)}.dark>.gantt-container .gantt .arrow{stroke:var(--text-muted-dark)}.dark>.gantt-container .gantt .bar{fill:var(--bar-color-dark);stroke:none}.dark>.gantt-container .gantt .bar-progress{fill:var(--blue-dark)}.dark>.gantt-container .gantt .bar-invalid{fill:transparent;stroke:var(--bar-stroke-dark)}:is(.dark>.gantt-container .gantt .bar-invalid)~.bar-label{fill:var(--text-light-dark)}.dark>.gantt-container .gantt .bar-label.big{fill:var(--text-light-dark)}.dark>.gantt-container .gantt .bar-wrapper:hover .bar{fill:lighten(var(--bar-color-dark, 5))}.dark>.gantt-container .gantt .bar-wrapper:hover .bar-progress{fill:lighten(var(--blue-dark, 5))}.dark>.gantt-container .gantt .bar-wrapper.active .bar{fill:lighten(var(--bar-color-dark, 5))}.dark>.gantt-container .gantt .bar-wrapper.active .bar-progress{fill:lighten(var(--blue-dark, 5))}.dark>.gantt-container .grid-header{background-color:#252525}.dark>.gantt-container .popup-wrapper{background-color:#333}.dark>.gantt-container .popup-wrapper .title{border-color:lighten(var(--blue-dark, 5))}.dark>.gantt-container .popup-wrapper .pointer{border-top-color:#333}:root{--bar-color: #fff;--bar-color-important: #94c4f4;--bar-stroke: #fff;--dark-stroke-color: #e0e0e0;--stroke-color: #ebeef0;--light-bg: #f5f5f5;--light-border-color: #ebeff2;--light-yellow: #f6e796;--holiday-color: #f9fafa;--text-muted: #666;--text-grey: #98a1a9;--text-light: #fff;--text-dark: #111;--progress: #ebeef0;--handle-color: #dcdce4;--handle-color-important: #94c4f4;--light-blue: #c4c4e9;--middle-blue: #62b2f9;--dark-blue: #2c94ec}.gantt-container{line-height:14.5px;position:relative;overflow:auto;font-size:12px;height:500px}.gantt-container .popup-wrapper{position:absolute;top:0;left:0;background:#171b1f;padding:10px;border-radius:5px;width:max-content}.gantt-container .popup-wrapper.hidden{opacity:0!important}.gantt-container .popup-wrapper .title{margin-bottom:5px;text-align:-webkit-center;text-align:center;color:var(--text-light)}.gantt-container .popup-wrapper .subtitle{color:var(--text-grey)}.gantt-container .popup-wrapper .pointer{position:absolute;height:5px;margin:0 0 0 -5px;border:5px solid transparent;border-bottom-color:#000c}.gantt-container .grid-header{background-color:#fff;position:sticky;top:0;left:0;z-index:10}.gantt-container .lower-text,.gantt-container .upper-text{text-anchor:middle;color:var(--text-dark)}.gantt-container .upper-header{height:40px}.gantt-container .lower-header{height:30px}.gantt-container .lower-text{font-size:14px;position:absolute;width:fit-content}.gantt-container .upper-text{position:absolute;width:fit-content;font-weight:500;font-size:16px}.gantt-container .current-upper{position:fixed}.gantt-container .side-header{position:fixed;padding:0 10px;margin-right:10px;background:transparent;line-height:20px;font-weight:400}.gantt-container .today-button,.gantt-container .viewmode-select{background:#f4f5f6;text-align:-webkit-center;text-align:center;border:none;color:var(--text-dark);padding:4px 10px;border-radius:8px;height:25px}.gantt-container .viewmode-select{outline:none!important;padding:4px 8px;margin-right:4px;text-indent:1px;text-overflow:""}.gantt-container .date-highlight{background-color:var(--progress);border-radius:12px;position:absolute;display:none}.gantt-container .current-highlight{position:absolute;background:var(--dark-blue);width:1px}.gantt-container .current-date-highlight{background:var(--dark-blue);color:var(--text-light);padding:4px 8px;border-radius:200px}.gantt{user-select:none;-webkit-user-select:none;position:absolute}.gantt .grid-background{fill:none}.gantt .grid-row{fill:#fff}.gantt .row-line{stroke:var(--light-border-color)}.gantt .tick{stroke:var(--stroke-color);stroke-width:.4}.gantt .tick.thick{stroke:var(--dark-stroke-color);stroke-width:.7}.gantt .holiday-highlight{fill:var(--holiday-color)}.gantt .arrow{fill:none;stroke:#9fa9b1;stroke-width:1}.gantt .bar-wrapper .bar{fill:var(--bar-color);stroke:var(--bar-stroke);stroke-width:0;transition:stroke-width .3s ease}.gantt .bar-progress{fill:var(--progress)}.gantt .bar-expected-progress{fill:var(--light-blue)}.gantt .bar-invalid{fill:transparent;stroke:var(--bar-stroke);stroke-width:1;stroke-dasharray:5}:is(.gantt .bar-invalid)~.bar-label{fill:var(--text-light)}.gantt .bar-label{fill:var(--text-dark);dominant-baseline:central;font-family:Helvetica;font-size:13px;font-weight:400}.gantt .bar-label.big{fill:var(--text-dark);text-anchor:start}.gantt .bar-wrapper.important .bar{fill:var(--bar-color-important)}.gantt .bar-wrapper.important .bar-progress{fill:var(--dark-blue)}.gantt .bar-wrapper.important .bar-label{fill:var(--text-light)}.gantt .bar-wrapper.important .handle{fill:var(--handle-color-important)}.gantt .bar-wrapper.important .handle.progress{fill:var(--text-light)}.gantt .handle{fill:var(--handle-color);cursor:ew-resize;opacity:0;visibility:hidden;transition:opacity .3s ease}.gantt .handle.progress{fill:var(--text-muted)}.gantt .bar-wrapper{cursor:pointer}.gantt .bar-wrapper.active .handle{visibility:visible;opacity:1}.gantt .bar-wrapper .bar{-webkit-filter:drop-shadow(3px 3px 2px rgba(0,0,0,.7));filter:drop-shadow(0 0 2px rgba(17,43,66,.16));border-radius:3px}.gantt .bar-wrapper .bar.safari{outline:1px solid black}.gantt .bar-wrapper:hover .bar{transition:transform .3s ease}.gantt .bar-wrapper:hover .date-highlight{display:block}.gantt .hide{display:none}
+:root{--bar-color-dark: #616161;--bar-stroke-dark: #c6ccd2;--border-color-dark: #616161;--light-bg-dark: #3e3e3e;--light-border-color-dark: #3e3e3e;--text-muted-dark: #eee;--text-light-dark: #ececec;--text-color-dark: #f7f7f7;--blue-dark: #8a8aff}.dark>.gantt-container .gantt .grid-row{fill:#252525}.dark>.gantt-container .gantt .row-line{stroke:var(--light-border-color-dark)}.dark>.gantt-container .gantt .tick{stroke:var(--border-color-dark)}.dark>.gantt-container .gantt .holiday-highlight{fill:var(--light-bg-dark)}.dark>.gantt-container .gantt .arrow{stroke:var(--text-muted-dark)}.dark>.gantt-container .gantt .bar{fill:var(--bar-color-dark);stroke:none}.dark>.gantt-container .gantt .bar-progress{fill:var(--blue-dark)}.dark>.gantt-container .gantt .bar-invalid{fill:transparent;stroke:var(--bar-stroke-dark)}:is(.dark>.gantt-container .gantt .bar-invalid)~.bar-label{fill:var(--text-light-dark)}.dark>.gantt-container .gantt .bar-label.big{fill:var(--text-light-dark)}.dark>.gantt-container .gantt .bar-wrapper:hover .bar{fill:lighten(var(--bar-color-dark, 5))}.dark>.gantt-container .gantt .bar-wrapper:hover .bar-progress{fill:lighten(var(--blue-dark, 5))}.dark>.gantt-container .gantt .bar-wrapper.active .bar{fill:lighten(var(--bar-color-dark, 5))}.dark>.gantt-container .gantt .bar-wrapper.active .bar-progress{fill:lighten(var(--blue-dark, 5))}.dark>.gantt-container .grid-header{background-color:#252525}.dark>.gantt-container .popup-wrapper{background-color:#333}.dark>.gantt-container .popup-wrapper .title{border-color:lighten(var(--blue-dark, 5))}.dark>.gantt-container .popup-wrapper .pointer{border-top-color:#333}:root{--bar-color: #fff;--bar-color-important: #94c4f4;--bar-stroke: #fff;--dark-stroke-color: #e0e0e0;--stroke-color: #ebeef0;--light-bg: #f5f5f5;--light-border-color: #ebeff2;--light-yellow: #f6e796;--holiday-color: #f9fafa;--text-muted: #666;--text-grey: #98a1a9;--text-light: #fff;--text-dark: #111;--progress: #ebeef0;--handle-color: #dcdce4;--handle-color-important: #94c4f4;--light-blue: #c4c4e9;--middle-blue: #62b2f9;--dark-blue: #2c94ec}.gantt-container{line-height:14.5px;position:relative;overflow:auto;font-size:12px;height:500px}.gantt-container .popup-wrapper{position:absolute;top:0;left:0;background:#171b1f;padding:10px;border-radius:5px;width:max-content}.gantt-container .popup-wrapper.hidden{opacity:0!important}.gantt-container .popup-wrapper .title{margin-bottom:5px;text-align:-webkit-center;text-align:center;color:var(--text-light)}.gantt-container .popup-wrapper .subtitle{color:var(--text-grey)}.gantt-container .popup-wrapper .pointer{position:absolute;height:5px;margin:0 0 0 -5px;border:5px solid transparent;border-bottom-color:#000c}.gantt-container .grid-header{background-color:#fff;position:sticky;top:0;left:0;z-index:10}.gantt-container .lower-text,.gantt-container .upper-text{text-anchor:middle;color:var(--text-dark)}.gantt-container .upper-header{height:40px}.gantt-container .lower-header{height:30px}.gantt-container .lower-text{font-size:14px;position:absolute;width:fit-content}.gantt-container .upper-text{position:absolute;width:fit-content;font-weight:500;font-size:16px}.gantt-container .current-upper{position:fixed}.gantt-container .side-header{position:fixed;padding:0 10px;margin-right:10px;background:#fff;line-height:20px;font-weight:400}.gantt-container .today-button,.gantt-container .viewmode-select{background:#f4f5f6;text-align:-webkit-center;text-align:center;border:none;color:var(--text-dark);padding:4px 10px;border-radius:8px;height:25px}.gantt-container .viewmode-select{outline:none!important;padding:4px 8px;margin-right:4px;text-indent:1px;text-overflow:""}.gantt-container .date-highlight{background-color:var(--progress);border-radius:12px;position:absolute;display:none}.gantt-container .current-highlight{position:absolute;background:var(--dark-blue);width:1px}.gantt-container .current-date-highlight{background:var(--dark-blue);color:var(--text-light);padding:4px 8px;border-radius:200px}.gantt{user-select:none;-webkit-user-select:none;position:absolute}.gantt .grid-background{fill:none}.gantt .grid-row{fill:#fff}.gantt .row-line{stroke:var(--light-border-color)}.gantt .tick{stroke:var(--stroke-color);stroke-width:.4}.gantt .tick.thick{stroke:var(--dark-stroke-color);stroke-width:.7}.gantt .holiday-highlight{fill:var(--holiday-color)}.gantt .arrow{fill:none;stroke:#9fa9b1;stroke-width:1}.gantt .bar-wrapper .bar{fill:var(--bar-color);stroke:var(--bar-stroke);stroke-width:0;transition:stroke-width .3s ease}.gantt .bar-progress{fill:var(--progress)}.gantt .bar-expected-progress{fill:var(--light-blue)}.gantt .bar-invalid{fill:transparent;stroke:var(--bar-stroke);stroke-width:1;stroke-dasharray:5}:is(.gantt .bar-invalid)~.bar-label{fill:var(--text-light)}.gantt .bar-label{fill:var(--text-dark);dominant-baseline:central;font-family:Helvetica;font-size:13px;font-weight:400}.gantt .bar-label.big{fill:var(--text-dark);text-anchor:start}.gantt .bar-wrapper.important .bar{fill:var(--bar-color-important)}.gantt .bar-wrapper.important .bar-progress{fill:var(--dark-blue)}.gantt .bar-wrapper.important .bar-label{fill:var(--text-light)}.gantt .bar-wrapper.important .handle{fill:var(--handle-color-important)}.gantt .bar-wrapper.important .handle.progress{fill:var(--text-light)}.gantt .handle{fill:var(--handle-color);cursor:ew-resize;opacity:0;visibility:hidden;transition:opacity .3s ease}.gantt .handle.progress{fill:var(--text-muted)}.gantt .bar-wrapper{cursor:pointer}.gantt .bar-wrapper.active .handle{visibility:visible;opacity:1}.gantt .bar-wrapper .bar{-webkit-filter:drop-shadow(3px 3px 2px rgba(0,0,0,.7));filter:drop-shadow(0 0 2px rgba(17,43,66,.16));border-radius:3px}.gantt .bar-wrapper .bar.safari{outline:1px solid black}.gantt .bar-wrapper:hover .bar{transition:transform .3s ease}.gantt .bar-wrapper:hover .date-highlight{display:block}.gantt .hide{display:none}
diff --git a/index.html b/index.html
index 900c123..3eb6986 100644
--- a/index.html
+++ b/index.html
@@ -24,7 +24,7 @@
             }
         </style>
         <link rel="stylesheet" href="dist/style.css" />
-        <!-- <script type="module" src="dist/frappe-gantt.js"></script> -->
+        <script src="dist/frappe-gantt.umd.cjs"></script>
     </head>
     <body>
         <div class="container">
@@ -34,7 +34,8 @@
             <div class="gantt-target"></div>
         </div>
         <script type="module">
-            import Gantt from "/dist/frappe-gantt.js";
+            // import Gantt from "./dist/frappe-gantt.js";
+
             let tasks = [
                 {
                     start: '2024-04-01',
@@ -95,13 +96,13 @@
             ];
 
             // Uncomment to test fixed header
-            tasks = [
-                ...tasks,
-                ...Array.from({ length: tasks.length * 3 }, (_, i) => ({
-                    ...tasks[i % 3],
-                    id: i,
-                })),
-            ];
+            // tasks = [
+            //     ...tasks,
+            //     ...Array.from({ length: tasks.length * 3 }, (_, i) => ({
+            //         ...tasks[i % 3],
+            //         id: i,
+            //     })),
+            // ];
 
             let gantt_chart = new Gantt('.gantt-target', tasks, {
                 on_click: (task) => {
@@ -134,7 +135,6 @@
                 // lower_text: (date) => date.getDay(),
                 // upper_text: (date, view_mode, def) => def,
             });
-            console.log(gantt_chart);
         </script>
     </body>
 </html>
diff --git a/src/bar.js b/src/bar.js
index 1886d94..73f9932 100644
--- a/src/bar.js
+++ b/src/bar.js
@@ -447,7 +447,7 @@ export default class Bar {
     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(
+        let new_start_date = date_utils.add(
             this.gantt.gantt_start,
             x_in_units * this.gantt.options.step,
             'hour',
diff --git a/src/index.js b/src/index.js
index 6b636c8..9c22ae7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -434,8 +434,6 @@ export default class Gantt {
     }
 
     make_grid_header() {
-        const curHeader = document.querySelector('.grid-header');
-
         let $header = document.createElement('div');
         $header.style.height = this.options.header_height + 10 + 'px';
         $header.style.width =
@@ -497,19 +495,41 @@ export default class Gantt {
             $side_header.appendChild($today_button);
         }
 
+
         this.$header.appendChild($side_header);
-        const { left, y } = this.$header.getBoundingClientRect();
-        const width = Math.min(
-            this.$header.clientWidth,
-            this.$container.clientWidth,
-        );
-        $side_header.style.left =
-            left +
-            this.$container.scrollLeft +
-            width -
-            $side_header.clientWidth +
-            'px';
-        $side_header.style.top = y + 10 + 'px';
+
+
+        function updateButtonPosition() {
+            const containerRect = this.$container.getBoundingClientRect();
+            const buttonRect = $side_header.getBoundingClientRect();
+            const { left, y } = this.$header.getBoundingClientRect();
+
+            // Check if the button is scrolled out of the container vertically
+            if (buttonRect.top < containerRect.top || buttonRect.bottom > containerRect.bottom) {
+                $side_header.style.position = 'absolute';
+                $side_header.style.top = `${container.scrollTop + buttonRect.top}px`;
+            } else {
+                $side_header.style.position = 'fixed';
+                $side_header.style.top = y + 10 + 'px';
+            }
+            const width = Math.min(
+                this.$header.clientWidth,
+                this.$container.clientWidth,
+            );
+
+            $side_header.style.left =
+                left +
+                this.$container.scrollLeft +
+                width -
+                $side_header.clientWidth +
+                'px';
+            // Update the left value on page resize
+            button.style.left = `${containerRect.left + 20}px`;
+
+        }
+
+        window.addEventListener('scroll', updateButtonPosition);
+        window.addEventListener('resize', updateButtonPosition);
     }
 
     make_grid_ticks() {
diff --git a/vite.config.js b/vite.config.js
index a12b43a..f97ff10 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -1,26 +1,20 @@
 import { resolve } from 'path';
 import { defineConfig } from 'vite';
-import pkg from './package.json';
-import path from 'node:path';
 
 export default defineConfig({
     build: {
         lib: {
             entry: resolve(__dirname, 'src/index.js'),
-            name: pkg.name,
+            name: 'Gantt',
             fileName: 'frappe-gantt',
         },
         rollupOptions: {
             external: ['vue'],
             output: {
-                // Provide global variables to use in the UMD build
-                // for externalized deps
                 globals: {
                     vue: 'Vue'
                 }
             },
-            // input: [path.join(process.cwd(), 'index.html'), path.join(process.cwd(), 'src', 'index.js')],
-            // preserveEntrySignatures: "allow-extension"
         },
     },
     output: { interop: 'auto' },