feat: fixed header, thumbnail, movable label;

bug of bar task id fixed

dist/frappe-gantt.css

@@ -143,9 +143,8 @@
 .gantt .bar-label {
   fill: #fff;
   dominant-baseline: central;
-  text-anchor: middle;
   font-size: 12px;
-  font-weight: lighter;
+  font-weight: 500;
 }
 .gantt .bar-label.big {
   fill: #555;
@@ -197,6 +196,7 @@
   position: relative;
   overflow: auto;
   font-size: 12px;
+  height: 500px;
 }
 .gantt-container .popup-wrapper {
   position: absolute;

dist/frappe-gantt.js

@@ -269,6 +269,8 @@ var Gantt = (function () {
         parent.appendChild(elem);
       } else if (attr === "innerHTML") {
         elem.innerHTML = attrs.innerHTML;
+      } else if (attr === 'clipPath') {
+        elem.setAttribute('clip-path', 'url(#' + attrs[attr] + ')');
       } else {
         elem.setAttribute(attr, attrs[attr]);
       }
@@ -411,6 +413,7 @@ var Gantt = (function () {
     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();
@@ -469,6 +472,10 @@ var Gantt = (function () {
       this.draw_progress_bar();
       this.draw_label();
       this.draw_resize_handles();
+
+      if (this.task.thumbnail) {
+        this.draw_thumbnail();
+      }
     }
 
     draw_bar() {
@@ -528,8 +535,14 @@ var Gantt = (function () {
     }
 
     draw_label() {
+      let x_coord = this.x + 5;
+
+      if (this.task.thumbnail) {
+        x_coord = this.x + this.image_size + 5;
+      }
+
       createSVG("text", {
-        x: this.x + this.width / 2,
+        x: x_coord,
         y: this.y + this.height / 2,
         innerHTML: this.task.name,
         class: "bar-label",
@@ -538,6 +551,46 @@ var Gantt = (function () {
       // labels get BBox in the next tick
       requestAnimationFrame(() => this.update_label_position());
     }
+    draw_thumbnail() {
+      let x_offset = 10, y_offset = 2;
+      let defs, clipPath;
+
+      defs = createSVG('defs', {
+        append_to: this.bar_group
+      });
+
+      createSVG('rect', {
+        id: 'rect_' + this.task.id,
+        x: this.x + x_offset,
+        y: this.y + y_offset,
+        width: this.image_size,
+        height: this.image_size,
+        rx: '15',
+        class: 'img_mask',
+        append_to: defs
+      });
+
+      clipPath = createSVG('clipPath', {
+        id: 'clip_' + this.task.id,
+        append_to: defs
+      });
+
+      createSVG('use', {
+        href: '#rect_' + this.task.id,
+        append_to: clipPath
+      });
+
+      createSVG('image', {
+        x: this.x + x_offset,
+        y: this.y + y_offset,
+        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;
@@ -667,6 +720,37 @@ var Gantt = (function () {
       this.update_arrow_position();
     }
 
+    update_label_position_on_horizontal_scroll({ x, sx }) {
+      const container = document.querySelector('.gantt-container');
+      const label = this.group.querySelector('.bar-label');
+      const img = this.group.querySelector('.bar-img') || '';
+      const img_mask = this.bar_group.querySelector('.img_mask') || '';
+
+      let barWidthLimit = this.$bar.getX() + this.$bar.getWidth();
+      let newLabelX = label.getX() + x;
+      let newImgX = img && img.getX() + x || 0;
+      let imgWidth = img && img.getBBox().width + 7 || 7;
+      let labelEndX = newLabelX + label.getBBox().width + 7;
+      let viewportCentral = sx + container.clientWidth / 2;
+
+      if (label.classList.contains('big')) return;
+
+      if (labelEndX < barWidthLimit && x > 0 && labelEndX < viewportCentral) {
+        label.setAttribute('x', newLabelX);
+        if (img) {
+          img.setAttribute('x', newImgX);
+          img_mask.setAttribute('x', newImgX);
+        }
+      } else if ((newLabelX - imgWidth) > this.$bar.getX() && x < 0 && labelEndX > viewportCentral) {
+        label.setAttribute('x', newLabelX);
+        if (img) {
+          img.setAttribute('x', newImgX);
+          img_mask.setAttribute('x', newImgX);
+        }
+
+      }
+    }
+
     date_changed() {
       let changed = false;
       const { new_start_date, new_end_date } = this.compute_start_end_date();
@@ -819,7 +903,7 @@ var Gantt = (function () {
     }
 
     update_progressbar_position() {
-      if (this.invalid) return;
+      if (this.invalid || this.gantt.options.readonly) return;
       this.$bar_progress.setAttribute("x", this.$bar.getX());
       this.$bar_progress.setAttribute(
         "width",
@@ -828,20 +912,37 @@ var Gantt = (function () {
     }
 
     update_label_position() {
+      const img_mask = this.bar_group.querySelector('.img_mask') || '';
       const bar = this.$bar,
-        label = this.group.querySelector(".bar-label");
+        label = this.group.querySelector(".bar-label"),
+        img = this.group.querySelector('.bar-img');
+
+      let padding = 5;
+      let x_offset_label_img = this.image_size + 10;
 
       if (label.getBBox().width > bar.getWidth()) {
         label.classList.add("big");
-        label.setAttribute("x", bar.getX() + bar.getWidth() + 5);
+        if (img) {
+          img.setAttribute('x', bar.getX() + bar.getWidth() + padding);
+          img_mask.setAttribute('x', bar.getX() + bar.getWidth() + padding);
+          label.setAttribute('x', bar.getX() + bar.getWidth() + x_offset_label_img);
+        } else {
+          label.setAttribute('x', bar.getX() + bar.getWidth() + padding);
+        }
       } else {
         label.classList.remove("big");
-        label.setAttribute("x", bar.getX() + bar.getWidth() / 2);
+        if (img) {
+          img.setAttribute('x', bar.getX() + padding);
+          img_mask.setAttribute('x', bar.getX() + padding);
+          label.setAttribute('x', bar.getX() + x_offset_label_img);
+        } else {
+          label.setAttribute('x', bar.getX() + padding);
+        }
       }
     }
 
     update_handle_position() {
-      if (this.invalid) return;
+      if (this.invalid || this.gantt.options.readonly) return;
       const bar = this.$bar;
       this.handle_group
         .querySelector(".handle.left")
@@ -1107,7 +1208,7 @@ var Gantt = (function () {
         column_width: 30,
         step: 24,
         view_modes: [...Object.values(VIEW_MODE)],
-        bar_height: 20,
+        bar_height: 30,
         bar_corner_radius: 3,
         arrow_curve: 5,
         padding: 18,
@@ -1200,6 +1301,10 @@ var Gantt = (function () {
         // uids
         if (!task.id) {
           task.id = generate_id(task);
+        } else if (typeof task.id === 'string') {
+          task.id = task.id.replace(' ', '_');
+        } else {
+          task.id = `${task.id}`;
         }
 
         return task;
@@ -1363,7 +1468,7 @@ var Gantt = (function () {
 
     setup_layers() {
       this.layers = {};
-      const layers = ["grid", "date", "arrow", "progress", "bar", "details"];
+      const layers = ["grid", "arrow", "progress", "bar", "details", "date"];
       // make group layers
       for (let layer of layers) {
         this.layers[layer] = createSVG("g", {
@@ -1394,7 +1499,7 @@ var Gantt = (function () {
         width: grid_width,
         height: grid_height,
         class: "grid-background",
-        append_to: this.layers.grid,
+        append_to: this.layers.date,
       });
 
       $.attr(this.$svg, {
@@ -1792,6 +1897,7 @@ var Gantt = (function () {
     bind_bar_events() {
       let is_dragging = false;
       let x_on_start = 0;
+      let x_on_scroll_start = 0;
       let y_on_start = 0;
       let is_resizing_left = false;
       let is_resizing_right = false;
@@ -1836,6 +1942,31 @@ var Gantt = (function () {
           $bar.finaldx = 0;
         });
       });
+      $.on(this.$container, 'scroll', e => {
+        let elements = document.querySelectorAll('.bar-wrapper');
+        let localBars = [];
+        const ids = [];
+        let dx;
+
+        this.layers.date.setAttribute('transform', 'translate(0,' + e.currentTarget.scrollTop + ')');
+        if (x_on_scroll_start) {
+          dx = e.currentTarget.scrollLeft - x_on_scroll_start;
+        }
+
+        Array.prototype.forEach.call(elements, function (el, i) {
+          ids.push(el.getAttribute('data-id'));
+        });
+
+        if (dx) {
+          localBars = ids.map(id => this.get_bar(id));
+
+          localBars.forEach(bar => {
+            bar.update_label_position_on_horizontal_scroll({ x: dx, sx: e.currentTarget.scrollLeft });
+          });
+        }
+
+        x_on_scroll_start = e.currentTarget.scrollLeft;
+      });
 
       $.on(this.$svg, "mousemove", (e) => {
         if (!action_in_progress()) return;
@@ -1863,7 +1994,7 @@ var Gantt = (function () {
                 width: $bar.owidth + $bar.finaldx,
               });
             }
-          } else if (is_dragging) {
+          } else if (is_dragging && !this.options.readonly) {
             bar.update_bar_position({ x: $bar.ox + $bar.finaldx });
           }
         });
@@ -2011,13 +2142,13 @@ var Gantt = (function () {
 
     get_task(id) {
       return this.tasks.find((task) => {
-        return task.id === id;
+        return task.id == id;
       });
     }
 
     get_bar(id) {
       return this.bars.find((bar) => {
-        return bar.task.id === id;
+        return bar.task.id == id;
       });
     }
 

dist/frappe-gantt.min.css

@@ -1 +1 @@
-.dark>.gantt-container .gantt .grid-header{fill:#252525;stroke:#616161}.dark>.gantt-container .gantt .grid-row{fill:#252525}.dark>.gantt-container .gantt .grid-row:nth-child(even){fill:#3e3e3e}.dark>.gantt-container .gantt .row-line{stroke:#3e3e3e}.dark>.gantt-container .gantt .tick{stroke:#616161}.dark>.gantt-container .gantt .today-highlight{opacity:.2}.dark>.gantt-container .gantt .arrow{stroke:#eee}.dark>.gantt-container .gantt .bar{fill:#616161;stroke:none}.dark>.gantt-container .gantt .bar-progress{fill:#8a8aff}.dark>.gantt-container .gantt .bar-invalid{fill:rgba(0,0,0,0);stroke:#c6ccd2}.dark>.gantt-container .gantt .bar-invalid~.bar-label{fill:#ececec}.dark>.gantt-container .gantt .bar-label.big{fill:#ececec}.dark>.gantt-container .gantt .bar-wrapper:hover .bar{fill:#6e6e6e}.dark>.gantt-container .gantt .bar-wrapper:hover .bar-progress{fill:#a4a4ff}.dark>.gantt-container .gantt .bar-wrapper.active .bar{fill:#6e6e6e}.dark>.gantt-container .gantt .bar-wrapper.active .bar-progress{fill:#a4a4ff}.dark>.gantt-container .gantt .upper-text{fill:#a2a2a2}.dark>.gantt-container .gantt .lower-text{fill:#f7f7f7}.dark>.gantt-container .popup-wrapper{background-color:#333}.dark>.gantt-container .popup-wrapper .title{border-color:#a4a4ff}.dark>.gantt-container .popup-wrapper .pointer{border-top-color:#333}.gantt{user-select:none;-webkit-user-select:none}.gantt .grid-background{fill:none}.gantt .grid-header{fill:#fff;stroke:#e0e0e0;stroke-width:1.4}.gantt .grid-row{fill:#fff}.gantt .grid-row:nth-child(even){fill:#f5f5f5}.gantt .row-line{stroke:#ebeff2}.gantt .tick{stroke:#e0e0e0;stroke-width:.2}.gantt .tick.thick{stroke-width:.4}.gantt .today-highlight{fill:#f6e796;opacity:.5}.gantt .week-highlight{fill:#f6e796;opacity:.5}.gantt .holiday-highlight{fill:#eee;opacity:.5}.gantt .month-highlight{fill:#f6e796;opacity:.5}.gantt .year-highlight{fill:#f6e796;opacity:.5}.gantt .arrow{fill:none;stroke:#666;stroke-width:1.4}.gantt .bar{fill:#b8c2cc;stroke:#8d99a6;stroke-width:0;transition:stroke-width .3s ease}.gantt .bar-progress{fill:#acacfa}.gantt .bar-expected-progress{fill:#c4c4e9}.gantt .bar-invalid{fill:rgba(0,0,0,0);stroke:#8d99a6;stroke-width:1;stroke-dasharray:5}.gantt .bar-invalid~.bar-label{fill:#555}.gantt .bar-label{fill:#fff;dominant-baseline:central;text-anchor:middle;font-size:12px;font-weight:lighter}.gantt .bar-label.big{fill:#555;text-anchor:start}.gantt .handle{fill:#ddd;cursor:ew-resize;opacity:0;visibility:hidden;transition:opacity .3s ease}.gantt .bar-wrapper{cursor:pointer;outline:none}.gantt .bar-wrapper:hover .bar{fill:#a9b5c1}.gantt .bar-wrapper:hover .bar-progress{fill:#9494f9}.gantt .bar-wrapper:hover .handle{visibility:visible;opacity:1}.gantt .bar-wrapper.active .bar{fill:#a9b5c1}.gantt .bar-wrapper.active .bar-progress{fill:#9494f9}.gantt .lower-text,.gantt .upper-text{font-size:12px;text-anchor:middle}.gantt .upper-text{fill:#555}.gantt .lower-text{fill:#333}.gantt .hide{display:none}.gantt-container{position:relative;overflow:auto;font-size:12px}.gantt-container .popup-wrapper{position:absolute;top:0;left:0;background:rgba(0,0,0,.8);padding:0;color:#959da5;border-radius:3px}.gantt-container .popup-wrapper .title{border-bottom:3px solid #acacfa;padding:10px}.gantt-container .popup-wrapper .subtitle{padding:10px;color:#dfe2e5}.gantt-container .popup-wrapper .pointer{position:absolute;height:5px;margin:0 0 0 -5px;border:5px solid rgba(0,0,0,0);border-top-color:rgba(0,0,0,.8)}
+.dark>.gantt-container .gantt .grid-header{fill:#252525;stroke:#616161}.dark>.gantt-container .gantt .grid-row{fill:#252525}.dark>.gantt-container .gantt .grid-row:nth-child(even){fill:#3e3e3e}.dark>.gantt-container .gantt .row-line{stroke:#3e3e3e}.dark>.gantt-container .gantt .tick{stroke:#616161}.dark>.gantt-container .gantt .today-highlight{opacity:.2}.dark>.gantt-container .gantt .arrow{stroke:#eee}.dark>.gantt-container .gantt .bar{fill:#616161;stroke:none}.dark>.gantt-container .gantt .bar-progress{fill:#8a8aff}.dark>.gantt-container .gantt .bar-invalid{fill:rgba(0,0,0,0);stroke:#c6ccd2}.dark>.gantt-container .gantt .bar-invalid~.bar-label{fill:#ececec}.dark>.gantt-container .gantt .bar-label.big{fill:#ececec}.dark>.gantt-container .gantt .bar-wrapper:hover .bar{fill:#6e6e6e}.dark>.gantt-container .gantt .bar-wrapper:hover .bar-progress{fill:#a4a4ff}.dark>.gantt-container .gantt .bar-wrapper.active .bar{fill:#6e6e6e}.dark>.gantt-container .gantt .bar-wrapper.active .bar-progress{fill:#a4a4ff}.dark>.gantt-container .gantt .upper-text{fill:#a2a2a2}.dark>.gantt-container .gantt .lower-text{fill:#f7f7f7}.dark>.gantt-container .popup-wrapper{background-color:#333}.dark>.gantt-container .popup-wrapper .title{border-color:#a4a4ff}.dark>.gantt-container .popup-wrapper .pointer{border-top-color:#333}.gantt{user-select:none;-webkit-user-select:none}.gantt .grid-background{fill:none}.gantt .grid-header{fill:#fff;stroke:#e0e0e0;stroke-width:1.4}.gantt .grid-row{fill:#fff}.gantt .grid-row:nth-child(even){fill:#f5f5f5}.gantt .row-line{stroke:#ebeff2}.gantt .tick{stroke:#e0e0e0;stroke-width:.2}.gantt .tick.thick{stroke-width:.4}.gantt .today-highlight{fill:#f6e796;opacity:.5}.gantt .week-highlight{fill:#f6e796;opacity:.5}.gantt .holiday-highlight{fill:#eee;opacity:.5}.gantt .month-highlight{fill:#f6e796;opacity:.5}.gantt .year-highlight{fill:#f6e796;opacity:.5}.gantt .arrow{fill:none;stroke:#666;stroke-width:1.4}.gantt .bar{fill:#b8c2cc;stroke:#8d99a6;stroke-width:0;transition:stroke-width .3s ease}.gantt .bar-progress{fill:#acacfa}.gantt .bar-expected-progress{fill:#c4c4e9}.gantt .bar-invalid{fill:rgba(0,0,0,0);stroke:#8d99a6;stroke-width:1;stroke-dasharray:5}.gantt .bar-invalid~.bar-label{fill:#555}.gantt .bar-label{fill:#fff;dominant-baseline:central;font-size:12px;font-weight:500}.gantt .bar-label.big{fill:#555;text-anchor:start}.gantt .handle{fill:#ddd;cursor:ew-resize;opacity:0;visibility:hidden;transition:opacity .3s ease}.gantt .bar-wrapper{cursor:pointer;outline:none}.gantt .bar-wrapper:hover .bar{fill:#a9b5c1}.gantt .bar-wrapper:hover .bar-progress{fill:#9494f9}.gantt .bar-wrapper:hover .handle{visibility:visible;opacity:1}.gantt .bar-wrapper.active .bar{fill:#a9b5c1}.gantt .bar-wrapper.active .bar-progress{fill:#9494f9}.gantt .lower-text,.gantt .upper-text{font-size:12px;text-anchor:middle}.gantt .upper-text{fill:#555}.gantt .lower-text{fill:#333}.gantt .hide{display:none}.gantt-container{position:relative;overflow:auto;font-size:12px;height:500px}.gantt-container .popup-wrapper{position:absolute;top:0;left:0;background:rgba(0,0,0,.8);padding:0;color:#959da5;border-radius:3px}.gantt-container .popup-wrapper .title{border-bottom:3px solid #acacfa;padding:10px}.gantt-container .popup-wrapper .subtitle{padding:10px;color:#dfe2e5}.gantt-container .popup-wrapper .pointer{position:absolute;height:5px;margin:0 0 0 -5px;border:5px solid rgba(0,0,0,0);border-top-color:rgba(0,0,0,.8)}

src/bar.js

@@ -23,6 +23,7 @@ export default class Bar {
   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();
@@ -81,6 +82,10 @@ export default class Bar {
     this.draw_progress_bar();
     this.draw_label();
     this.draw_resize_handles();
+
+    if (this.task.thumbnail) {
+      this.draw_thumbnail();
+    }
   }
 
   draw_bar() {
@@ -140,8 +145,14 @@ export default class Bar {
   }
 
   draw_label() {
+    let x_coord = this.x + 5;
+
+    if (this.task.thumbnail) {
+      x_coord = this.x + this.image_size + 5;
+    }
+
     createSVG("text", {
-      x: this.x + this.width / 2,
+      x: x_coord,
       y: this.y + this.height / 2,
       innerHTML: this.task.name,
       class: "bar-label",
@@ -150,6 +161,46 @@ export default class Bar {
     // labels get BBox in the next tick
     requestAnimationFrame(() => this.update_label_position());
   }
+  draw_thumbnail() {
+    let x_offset = 10, y_offset = 2;
+    let defs, clipPath;
+
+    defs = createSVG('defs', {
+      append_to: this.bar_group
+    });
+
+    createSVG('rect', {
+      id: 'rect_' + this.task.id,
+      x: this.x + x_offset,
+      y: this.y + y_offset,
+      width: this.image_size,
+      height: this.image_size,
+      rx: '15',
+      class: 'img_mask',
+      append_to: defs
+    });
+
+    clipPath = createSVG('clipPath', {
+      id: 'clip_' + this.task.id,
+      append_to: defs
+    });
+
+    createSVG('use', {
+      href: '#rect_' + this.task.id,
+      append_to: clipPath
+    });
+
+    createSVG('image', {
+      x: this.x + x_offset,
+      y: this.y + y_offset,
+      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;
@@ -279,6 +330,37 @@ export default class Bar {
     this.update_arrow_position();
   }
 
+  update_label_position_on_horizontal_scroll({ x, sx }) {
+    const container = document.querySelector('.gantt-container');
+    const label = this.group.querySelector('.bar-label');
+    const img = this.group.querySelector('.bar-img') || '';
+    const img_mask = this.bar_group.querySelector('.img_mask') || '';
+
+    let barWidthLimit = this.$bar.getX() + this.$bar.getWidth();
+    let newLabelX = label.getX() + x;
+    let newImgX = img && img.getX() + x || 0;
+    let imgWidth = img && img.getBBox().width + 7 || 7;
+    let labelEndX = newLabelX + label.getBBox().width + 7;
+    let viewportCentral = sx + container.clientWidth / 2;
+
+    if (label.classList.contains('big')) return;
+
+    if (labelEndX < barWidthLimit && x > 0 && labelEndX < viewportCentral) {
+      label.setAttribute('x', newLabelX);
+      if (img) {
+        img.setAttribute('x', newImgX);
+        img_mask.setAttribute('x', newImgX);
+      }
+    } else if ((newLabelX - imgWidth) > this.$bar.getX() && x < 0 && labelEndX > viewportCentral) {
+      label.setAttribute('x', newLabelX);
+      if (img) {
+        img.setAttribute('x', newImgX);
+        img_mask.setAttribute('x', newImgX);
+      }
+
+    }
+  }
+
   date_changed() {
     let changed = false;
     const { new_start_date, new_end_date } = this.compute_start_end_date();
@@ -431,7 +513,7 @@ export default class Bar {
   }
 
   update_progressbar_position() {
-    if (this.invalid) return;
+    if (this.invalid || this.gantt.options.readonly) return;
     this.$bar_progress.setAttribute("x", this.$bar.getX());
     this.$bar_progress.setAttribute(
       "width",
@@ -440,20 +522,37 @@ export default class Bar {
   }
 
   update_label_position() {
+    const img_mask = this.bar_group.querySelector('.img_mask') || '';
     const bar = this.$bar,
-      label = this.group.querySelector(".bar-label");
+      label = this.group.querySelector(".bar-label"),
+      img = this.group.querySelector('.bar-img');
+
+    let padding = 5;
+    let x_offset_label_img = this.image_size + 10;
 
     if (label.getBBox().width > bar.getWidth()) {
       label.classList.add("big");
-      label.setAttribute("x", bar.getX() + bar.getWidth() + 5);
+      if (img) {
+        img.setAttribute('x', bar.getX() + bar.getWidth() + padding);
+        img_mask.setAttribute('x', bar.getX() + bar.getWidth() + padding);
+        label.setAttribute('x', bar.getX() + bar.getWidth() + x_offset_label_img);
+      } else {
+        label.setAttribute('x', bar.getX() + bar.getWidth() + padding);
+      }
     } else {
       label.classList.remove("big");
-      label.setAttribute("x", bar.getX() + bar.getWidth() / 2);
+      if (img) {
+        img.setAttribute('x', bar.getX() + padding);
+        img_mask.setAttribute('x', bar.getX() + padding);
+        label.setAttribute('x', bar.getX() + x_offset_label_img);
+      } else {
+        label.setAttribute('x', bar.getX() + padding);
+      }
     }
   }
 
   update_handle_position() {
-    if (this.invalid) return;
+    if (this.invalid || this.gantt.options.readonly) return;
     const bar = this.$bar;
     this.handle_group
       .querySelector(".handle.left")

src/gantt.scss

@@ -109,9 +109,9 @@ $light-blue: #c4c4e9 !default;
   .bar-label {
     fill: #fff;
     dominant-baseline: central;
-    text-anchor: middle;
+    // text-anchor: middle;
     font-size: 12px;
-    font-weight: lighter;
+    font-weight: 500;
 
     &.big {
       fill: $text-light;
@@ -180,6 +180,7 @@ $light-blue: #c4c4e9 !default;
   position: relative;
   overflow: auto;
   font-size: 12px;
+  height: 500px;
 
   .popup-wrapper {
     position: absolute;

src/index.js

@@ -89,7 +89,7 @@ export default class Gantt {
       column_width: 30,
       step: 24,
       view_modes: [...Object.values(VIEW_MODE)],
-      bar_height: 20,
+      bar_height: 30,
       bar_corner_radius: 3,
       arrow_curve: 5,
       padding: 18,
@@ -182,6 +182,10 @@ export default class Gantt {
       // uids
       if (!task.id) {
         task.id = generate_id(task);
+      } else if (typeof task.id === 'string') {
+        task.id = task.id.replace(' ', '_')
+      } else {
+        task.id = `${task.id}`
       }
 
       return task;
@@ -345,7 +349,7 @@ export default class Gantt {
 
   setup_layers() {
     this.layers = {};
-    const layers = ["grid", "date", "arrow", "progress", "bar", "details"];
+    const layers = ["grid", "arrow", "progress", "bar", "details", "date"];
     // make group layers
     for (let layer of layers) {
       this.layers[layer] = createSVG("g", {
@@ -376,7 +380,7 @@ export default class Gantt {
       width: grid_width,
       height: grid_height,
       class: "grid-background",
-      append_to: this.layers.grid,
+      append_to: this.layers.date,
     });
 
     $.attr(this.$svg, {
@@ -774,6 +778,7 @@ export default class Gantt {
   bind_bar_events() {
     let is_dragging = false;
     let x_on_start = 0;
+    let x_on_scroll_start = 0;
     let y_on_start = 0;
     let is_resizing_left = false;
     let is_resizing_right = false;
@@ -818,6 +823,31 @@ export default class Gantt {
         $bar.finaldx = 0;
       });
     });
+    $.on(this.$container, 'scroll', e => {
+      let elements = document.querySelectorAll('.bar-wrapper');
+      let localBars = [];
+      const ids = [];
+      let dx;
+
+      this.layers.date.setAttribute('transform', 'translate(0,' + e.currentTarget.scrollTop + ')');
+      if (x_on_scroll_start) {
+        dx = e.currentTarget.scrollLeft - x_on_scroll_start;
+      }
+
+      Array.prototype.forEach.call(elements, function (el, i) {
+        ids.push(el.getAttribute('data-id'));
+      });
+
+      if (dx) {
+        localBars = ids.map(id => this.get_bar(id));
+
+        localBars.forEach(bar => {
+          bar.update_label_position_on_horizontal_scroll({ x: dx, sx: e.currentTarget.scrollLeft });
+        });
+      }
+
+      x_on_scroll_start = e.currentTarget.scrollLeft;
+    });
 
     $.on(this.$svg, "mousemove", (e) => {
       if (!action_in_progress()) return;
@@ -845,7 +875,7 @@ export default class Gantt {
               width: $bar.owidth + $bar.finaldx,
             });
           }
-        } else if (is_dragging) {
+        } else if (is_dragging && !this.options.readonly) {
           bar.update_bar_position({ x: $bar.ox + $bar.finaldx });
         }
       });
@@ -993,13 +1023,13 @@ export default class Gantt {
 
   get_task(id) {
     return this.tasks.find((task) => {
-      return task.id === id;
+      return task.id == id;
     });
   }
 
   get_bar(id) {
     return this.bars.find((bar) => {
-      return bar.task.id === id;
+      return bar.task.id == id;
     });
   }
 

src/svg_utils.js

@@ -12,6 +12,8 @@ export function createSVG(tag, attrs) {
       parent.appendChild(elem);
     } else if (attr === "innerHTML") {
       elem.innerHTML = attrs.innerHTML;
+    } else if (attr === 'clipPath') {
+      elem.setAttribute('clip-path', 'url(#' + attrs[attr] + ')');
     } else {
       elem.setAttribute(attr, attrs[attr]);
     }