feat(gantt): support quick time focus #TINFR-1044

example/src/app/gantt-virtual-scroll/gantt.component.html

@@ -12,6 +12,7 @@
       [virtualScrollEnabled]="true"
       (virtualScrolledIndexChange)="virtualScrolledIndexChange($event)"
       [loading]="loading"
+      [quickTimeFocus]="true"
     >
       <ngx-gantt-table
         [draggable]="true"

example/src/app/gantt/gantt.component.html

@@ -45,6 +45,7 @@
       (dragEnded)="dragEnded($event)"
       (selectedChange)="selectedChange($event)"
       (linkDragEnded)="linkDragEnded($event)"
+      [quickTimeFocus]="true"
     >
       <ngx-gantt-table
         [draggable]="true"

packages/gantt/src/components/icon/icons.ts

@@ -78,12 +78,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink"
 </svg>`;
 
 const dragIcon = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fit="" preserveAspectRatio="xMidYMid meet" focusable="false"><g id="aijaction/drag--" stroke-width="1" fill-rule="evenodd"><g id="aij拖动" transform="translate(5 1)" fill-rule="nonzero"><path d="M1 2a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm4 0a1 1 0 1 1 0-2 1 1 0 0 1 0 2zM1 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm4 0a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm-4 4a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm4 0a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm-4 4a1 1 0 1 1 0-2 1 1 0 0 1 0 2zm4 0a1 1 0 1 1 0-2 1 1 0 0 1 0 2z" id="aij形状结合"></path></g></g></svg>`;
+const arrowLeftIcon = `<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fit="" height="1em" width="1em" preserveAspectRatio="xMidYMid meet" focusable="false"><g id="adinavigation/arrow-left" stroke-width="1" fill-rule="evenodd"><path d="M7.4 4.15L4.438 7.315a.6.6 0 0 1-.876-.82l3.97-4.243a.598.598 0 0 1 .93-.057l3.97 4.323a.6.6 0 1 1-.885.812L8.6 4.118v9.149c0 .404-.269.733-.6.733-.332 0-.6-.329-.6-.733V4.15z" id="adi形状结合" transform="rotate(-90 7.995 8)"></path></g></svg>`;
+const arrowRightIcon = `<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fit="" height="1em" width="1em" preserveAspectRatio="xMidYMid meet" focusable="false"><g id="adlnavigation/arrow-right" stroke-width="1" fill-rule="evenodd"><path d="M7.4 4.15L4.438 7.315a.6.6 0 0 1-.876-.82l3.97-4.243a.598.598 0 0 1 .93-.057l3.97 4.323a.6.6 0 1 1-.885.812L8.6 4.118v9.149c0 .404-.269.733-.6.733-.332 0-.6-.329-.6-.733V4.15z" id="adl形状结合" transform="rotate(90 7.995 8)"></path></g></svg>`;
 export const icons = {
     'angle-right': angleRight,
     'angle-down': angleDown,
     'plus-square': plusSquare,
     'minus-square': minusSquare,
     loading: loadingIcon,
     empty: emptyIcon,
-    drag: dragIcon
+    drag: dragIcon,
+    'arrow-left': arrowLeftIcon,
+    'arrow-right': arrowRightIcon
 };

packages/gantt/src/components/main/gantt-main.component.html

@@ -35,3 +35,29 @@
     </div>
   </ng-container>
 </div>
+
+@if (quickTimeFocus) {
+<div class="gantt-quick-time-focus-container" [style.width.px]="ganttUpper.view.width">
+  <div class="gantt-quick-time-focus" [style.width.px]="dom.visibleRangeX().max - dom.visibleRangeX().min">
+    <ng-container *ngFor="let data of viewportItems; let i = index; trackBy: trackBy">
+      <div class="gantt-quick-time-focus-item" [style.height.px]="ganttUpper.styles.lineHeight">
+        <span class="ml-2">
+          @if ((data.refs.x < dom.visibleRangeX().min ) && data.refs.width ) {
+          <a class="gantt-quick-time-focus-item-arrow link-secondary" href="javascript:;" (click)="quickTime(data.origin, 'left')">
+            <gantt-icon iconName="arrow-left"></gantt-icon>
+          </a>
+          }
+        </span>
+
+        <span class="mr-2">
+          @if((data.refs.x + data.refs.width > dom.visibleRangeX().max) && data.refs.width) {
+          <a class="gantt-quick-time-focus-item-arrow link-secondary" href="javascript:;" (click)="quickTime(data.origin, 'right')">
+            <gantt-icon iconName="arrow-right"></gantt-icon>
+          </a>
+          }
+        </span>
+      </div>
+    </ng-container>
+  </div>
+</div>
+}

packages/gantt/src/components/main/gantt-main.component.ts

@@ -1,4 +1,4 @@
-import { Component, HostBinding, Inject, Input, TemplateRef, Output, EventEmitter } from '@angular/core';
+import { Component, HostBinding, Inject, Input, TemplateRef, Output, EventEmitter, OnInit, AfterViewInit, NgZone } from '@angular/core';
 import { GanttGroupInternal, GanttItemInternal, GanttBarClickEvent, GanttLineClickEvent } from '../../class';
 import { GANTT_UPPER_TOKEN, GanttUpper } from '../../gantt-upper';
 import { IsGanttRangeItemPipe, IsGanttBarItemPipe, IsGanttCustomItemPipe } from '../../gantt.pipe';
@@ -7,6 +7,10 @@ import { NgxGanttBarComponent } from '../bar/bar.component';
 import { NgxGanttRangeComponent } from '../range/range.component';
 import { NgFor, NgIf, NgClass, NgTemplateOutlet } from '@angular/common';
 import { GanttLinksComponent } from '../links/links.component';
+import { NgxGanttRootComponent } from 'ngx-gantt';
+import { GanttIconComponent } from '../icon/icon.component';
+import { GanttDomService } from '../../gantt-dom.service';
+import { combineLatest, from, Subject, take, takeUntil } from 'rxjs';
 
 @Component({
     selector: 'gantt-main',
@@ -23,10 +27,11 @@ import { GanttLinksComponent } from '../links/links.component';
         NgxGanttBaselineComponent,
         IsGanttRangeItemPipe,
         IsGanttBarItemPipe,
-        IsGanttCustomItemPipe
+        IsGanttCustomItemPipe,
+        GanttIconComponent
     ]
 })
-export class GanttMainComponent {
+export class GanttMainComponent implements OnInit {
     @Input() viewportItems: (GanttGroupInternal | GanttItemInternal)[];
 
     @Input() flatItems: (GanttGroupInternal | GanttItemInternal)[];
@@ -41,15 +46,43 @@ export class GanttMainComponent {
 
     @Input() baselineTemplate: TemplateRef<any>;
 
+    @Input() ganttRoot: NgxGanttRootComponent;
+
+    @Input() quickTimeFocus: boolean;
+
     @Output() barClick = new EventEmitter<GanttBarClickEvent>();
 
     @Output() lineClick = new EventEmitter<GanttLineClickEvent>();
 
     @HostBinding('class.gantt-main-container') ganttMainClass = true;
 
-    constructor(@Inject(GANTT_UPPER_TOKEN) public ganttUpper: GanttUpper) {}
+    private unsubscribe$ = new Subject<void>();
+
+    constructor(@Inject(GANTT_UPPER_TOKEN) public ganttUpper: GanttUpper, public dom: GanttDomService, protected ngZone: NgZone) {}
+
+    ngOnInit(): void {
+        const onStable$ = this.ngZone.isStable ? from(Promise.resolve()) : this.ngZone.onStable.pipe(take(1));
+        this.ngZone.runOutsideAngular(() => {
+            onStable$.pipe(takeUntil(this.unsubscribe$)).subscribe(() => {
+                this.setupResize();
+            });
+        });
+    }
 
     trackBy(index: number, item: GanttGroupInternal | GanttItemInternal) {
         return item.id || index;
     }
+
+    private setupResize() {
+        combineLatest([this.dom.getResize(), this.dom.getResizeByElement(this.dom.mainContainer)])
+            .pipe(takeUntil(this.unsubscribe$))
+            .subscribe(() => {
+                this.dom.setVisibleRangeX();
+            });
+    }
+
+    quickTime(item: GanttItemInternal, type: 'left' | 'right') {
+        const date = type === 'left' ? item.start || item.end : item.end || item.start;
+        this.ganttRoot.scrollToDate(date);
+    }
 }

packages/gantt/src/gantt-dom.service.ts

@@ -1,5 +1,5 @@
 import { isPlatformServer } from '@angular/common';
-import { Injectable, ElementRef, OnDestroy, Inject, PLATFORM_ID, NgZone } from '@angular/core';
+import { Injectable, ElementRef, OnDestroy, Inject, PLATFORM_ID, NgZone, WritableSignal, signal } from '@angular/core';
 import { fromEvent, Subject, merge, EMPTY, Observable } from 'rxjs';
 import { pairwise, map, auditTime, takeUntil } from 'rxjs/operators';
 import { isNumber } from './utils/helpers';
@@ -40,6 +40,8 @@ export class GanttDomService implements OnDestroy {
 
     public linksOverlay: Element;
 
+    public visibleRangeX: WritableSignal<{ min: number; max: number }> = signal({ min: 0, max: 0 });
+
     private mainFooter: Element;
 
     private mainScrollbar: Element;
@@ -141,6 +143,7 @@ export class GanttDomService implements OnDestroy {
                         map(() => this.mainContainer.scrollLeft),
                         pairwise(),
                         map(([previous, current]) => {
+                            this.setVisibleRangeX();
                             const event: ScrollEvent = {
                                 target: this.mainContainer,
                                 direction: ScrollDirection.NONE
@@ -170,6 +173,15 @@ export class GanttDomService implements OnDestroy {
         return isPlatformServer(this.platformId) ? EMPTY : fromEvent(window, 'resize').pipe(auditTime(150));
     }
 
+    getResizeByElement(element: Element) {
+        return new Observable((observer) => {
+            const resizeObserver = new ResizeObserver(() => {
+                observer.next();
+            });
+            resizeObserver.observe(element);
+        });
+    }
+
     scrollMainContainer(left: number) {
         if (isNumber(left)) {
             const scrollLeft = left - this.mainContainer.clientWidth / 2;
@@ -181,6 +193,13 @@ export class GanttDomService implements OnDestroy {
         }
     }
 
+    setVisibleRangeX() {
+        this.visibleRangeX.set({
+            min: this.mainContainer.scrollLeft,
+            max: this.mainContainer.scrollLeft + this.mainContainer.clientWidth
+        });
+    }
+
     ngOnDestroy() {
         this.unsubscribe$.next();
         this.unsubscribe$.complete();

packages/gantt/src/gantt-upper.ts

@@ -109,6 +109,8 @@ export abstract class GanttUpper implements OnChanges, OnInit, OnDestroy {
         return this._multiple;
     }
 
+    @Input() quickTimeFocus = false;
+
     @Output() loadOnScroll = new EventEmitter<GanttLoadOnScrollEvent>();
 
     @Output() dragStarted = new EventEmitter<GanttDragEvent>();

packages/gantt/src/gantt.component.html

@@ -50,13 +50,15 @@
       ></gantt-calendar-grid>
       <div class="gantt-main">
         <gantt-main
+          [ganttRoot]="ganttRoot"
           [flatItems]="flatItems"
           [viewportItems]="viewportItems"
           [groupHeaderTemplate]="groupHeaderTemplate"
           [itemTemplate]="itemTemplate"
           [barTemplate]="barTemplate"
           [rangeTemplate]="rangeTemplate"
           [baselineTemplate]="baselineTemplate"
+          [quickTimeFocus]="quickTimeFocus"
           (barClick)="barClick.emit($event)"
           (lineClick)="lineClick.emit($event)"
         >

packages/gantt/src/gantt.component.scss

@@ -110,6 +110,59 @@
         background-color: rgba($color: variables.$gantt-table-header-drag-line-color, $alpha: 0.1);
       }
     }
+
+    .gantt-quick-time-focus-container {
+      position: absolute;
+      left: 0;
+      top: 0;
+      .gantt-quick-time-focus {
+        position: sticky;
+        left: 0;
+        width: 0px;
+        z-index: 3;
+        pointer-events: none;
+
+        &-item {
+          display: flex;
+          justify-content: space-between;
+          align-items: center;
+          span {
+            width: 24px;
+            height: 24px;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            margin-bottom: 2px;
+            pointer-events: all;
+            &:hover {
+              .gantt-quick-time-focus-item-arrow {
+                border: 1px solid rgba(variables.$gantt-primary-color, 1);
+              }
+            }
+          }
+
+          &-arrow {
+            width: 20px;
+            height: 20px;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            cursor: pointer;
+            background-color: variables.$gantt-bar-bg;
+            border: 1px solid variables.$gantt-border-color;
+            border-radius: 4px;
+            box-shadow: 0 4px 7px 1px rgba(0, 0, 0, 0.05);
+            .gantt-icon {
+              display: inline-block;
+              svg {
+                width: 14px;
+                height: 14px;
+              }
+            }
+          }
+        }
+      }
+    }
   }
 
   .gantt-normal-viewport {

packages/gantt/src/gantt.component.ts

@@ -1,5 +1,5 @@
 import { CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport, ViewportRuler } from '@angular/cdk/scrolling';
-import { NgClass, NgIf, NgTemplateOutlet } from '@angular/common';
+import { NgClass, NgFor, NgIf, NgTemplateOutlet } from '@angular/common';
 import {
     AfterViewChecked,
     AfterViewInit,
@@ -82,7 +82,8 @@ import { GanttScrollbarComponent } from './components/scrollbar/scrollbar.compon
         GanttMainComponent,
         GanttDragBackdropComponent,
         GanttScrollbarComponent,
-        NgTemplateOutlet
+        NgTemplateOutlet,
+        NgFor
     ]
 })
 export class NgxGanttComponent extends GanttUpper implements OnInit, OnChanges, AfterViewInit, AfterViewChecked {

packages/gantt/src/root.component.ts

@@ -127,7 +127,7 @@ export class NgxGanttRootComponent implements OnInit, OnDestroy {
     }
 
     private setupViewScroll() {
-        if (this.ganttUpper.disabledLoadOnScroll) {
+        if (this.ganttUpper.disabledLoadOnScroll && !this.ganttUpper.quickTimeFocus) {
             return;
         }
         this.dom