@alauda-fe/common
Version:
Alauda frontend team common codes.
85 lines • 14.7 kB
JavaScript
import { Injectable } from '@angular/core';
import { cloneDeep } from 'lodash-es';
import { map, of, ReplaySubject, startWith, Subject, switchMap, } from 'rxjs';
import { getClientRectSnapshot } from './utils/client-rect.utils';
import { getGridHeight, gridItemDragging, gridItemResizing, layoutToRenderItems, } from './utils/grid.utils';
import { getScrollTotalRelativeDifference$ } from './utils/scroll.utils';
import * as i0 from "@angular/core";
export class GridLayoutService {
constructor() {
this.gridRenderHeight$$ = new ReplaySubject(1);
this.gridRenderItemsData$$ = new Subject();
}
get gridConfig() {
return this.gridComponent?.config;
}
registerGridComponent(gridComponent) {
this.gridComponent = gridComponent;
this.scrollDifference$ = gridComponent.scrollableParent$.pipe(map(scrollableParent => typeof scrollableParent === 'string'
? document.querySelector(scrollableParent)
: scrollableParent), switchMap(scrollableParent => scrollableParent
? getScrollTotalRelativeDifference$(scrollableParent).pipe(startWith({ top: 0, left: 0 }))
: of({ top: 0, left: 0 })));
}
calculateRenderData(_updateLayout) {
const { rowHeight, gutter, layout } = this.gridConfig;
const clientRect = getClientRectSnapshot(this.gridComponent.hostElement);
this.lastLayout = layout;
this.gridItemsRenderData = layoutToRenderItems(this.gridConfig, clientRect.width, this.lastLayout);
this.gridHeight = getGridHeight(layout, rowHeight, gutter);
}
flushRenderItemsData(animation = true) {
this.gridRenderItemsData$$.next({
data: this.gridItemsRenderData,
animation,
});
}
flushRenderData(animation = true) {
this.flushRenderItemsData(animation);
requestAnimationFrame(() => {
this.gridRenderHeight$$.next(this.gridHeight);
});
}
// use this to handle remove grid item
setLastLayout(layout) {
this.lastLayout = layout;
}
layoutWhenAction(gridItem, type, { pointerDownEvent, pointerDragEvent, }, scrollDifference, dragElemClientRect, gridElemClientRect) {
const { rowHeight, gutter, cols, preventCollision, layout: rawLayout, } = this.gridConfig;
const calcNewStateFunc = type === 'drag' ? gridItemDragging : gridItemResizing;
const currentLayout = cloneDeep(this.lastLayout || rawLayout);
const { layout: newLayout, draggedItemPos } = calcNewStateFunc(gridItem, {
...this.gridConfig,
layout: currentLayout,
}, this.gridComponent.compactType, {
pointerDownEvent,
pointerDragEvent,
gridElemClientRect,
dragElemClientRect,
scrollDifference,
});
this.lastLayout = newLayout;
const itemsLayoutData = layoutToRenderItems({
cols,
rowHeight,
layout: newLayout,
preventCollision,
gutter,
}, gridElemClientRect.width);
this.gridHeight = getGridHeight(newLayout, rowHeight, gutter);
// itemsLayoutData and this.gridItemsRenderData will be different, because this.gridItemsRenderData will be used to render on-flight item position. bud itemsLayoutData is normalized position by grid
this.gridItemsRenderData = cloneDeep(itemsLayoutData);
// modify the position of the dragged item to be the once we want
this.gridItemsRenderData[gridItem.id] = {
...draggedItemPos,
id: gridItem.id,
};
return { gridData: itemsLayoutData, layout: newLayout };
}
static { this.ɵfac = function GridLayoutService_Factory(t) { return new (t || GridLayoutService)(); }; }
static { this.ɵprov = /*@__PURE__*/ i0.ɵɵdefineInjectable({ token: GridLayoutService, factory: GridLayoutService.ɵfac }); }
}
(() => { (typeof ngDevMode === "undefined" || ngDevMode) && i0.ɵsetClassMetadata(GridLayoutService, [{
type: Injectable
}], null, null); })();
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document.querySelector(scrollableParent)\n          : scrollableParent,\n      ),\n      switchMap(scrollableParent =>\n        scrollableParent\n          ? getScrollTotalRelativeDifference$(scrollableParent).pipe(\n              startWith({ top: 0, left: 0 }),\n            )\n          : of({ top: 0, left: 0 }),\n      ),\n    );\n  }\n\n  calculateRenderData(_updateLayout?: GridLayoutItem[]) {\n    const { rowHeight, gutter, layout } = this.gridConfig;\n    const clientRect = getClientRectSnapshot(this.gridComponent.hostElement);\n    this.lastLayout = layout;\n    this.gridItemsRenderData = layoutToRenderItems(\n      this.gridConfig,\n      clientRect.width,\n      this.lastLayout,\n    );\n    this.gridHeight = getGridHeight(layout, rowHeight, gutter);\n  }\n\n  gridRenderHeight$$ = new ReplaySubject<number>(1);\n  gridRenderItemsData$$ = new Subject<{\n    data: Dictionary<GridItemRenderData>;\n    animation: boolean;\n  }>();\n\n  flushRenderItemsData(animation = true) {\n    this.gridRenderItemsData$$.next({\n      data: this.gridItemsRenderData,\n      animation,\n    });\n  }\n\n  flushRenderData(animation = true) {\n    this.flushRenderItemsData(animation);\n    requestAnimationFrame(() => {\n      this.gridRenderHeight$$.next(this.gridHeight);\n    });\n  }\n\n  lastLayout: GridLayout;\n\n  // use this to handle remove grid item\n  setLastLayout(layout: GridLayout) {\n    this.lastLayout = layout;\n  }\n\n  layoutWhenAction(\n    gridItem: GridItemComponent,\n    type: DragActionType,\n    {\n      pointerDownEvent,\n      pointerDragEvent,\n    }: {\n      pointerDownEvent: MouseEvent;\n      pointerDragEvent: MouseEvent;\n    },\n    scrollDifference: { top: number; left: number },\n    dragElemClientRect: GridItemClientRect,\n    gridElemClientRect: GridItemClientRect,\n  ) {\n    const {\n      rowHeight,\n      gutter,\n      cols,\n      preventCollision,\n      layout: rawLayout,\n    } = this.gridConfig;\n\n    const calcNewStateFunc =\n      type === 'drag' ? gridItemDragging : gridItemResizing;\n    const currentLayout: GridLayout = cloneDeep(this.lastLayout || rawLayout);\n    const { layout: newLayout, draggedItemPos } = calcNewStateFunc(\n      gridItem,\n      {\n        ...this.gridConfig,\n        layout: currentLayout,\n      },\n      this.gridComponent.compactType,\n      {\n        pointerDownEvent,\n        pointerDragEvent,\n        gridElemClientRect,\n        dragElemClientRect,\n        scrollDifference,\n      },\n    );\n\n    this.lastLayout = newLayout;\n\n    const itemsLayoutData = layoutToRenderItems(\n      {\n        cols,\n        rowHeight,\n        layout: newLayout,\n        preventCollision,\n        gutter,\n      },\n      gridElemClientRect.width,\n    );\n    this.gridHeight = getGridHeight(newLayout, rowHeight, gutter);\n\n    // itemsLayoutData and this.gridItemsRenderData will be different, because this.gridItemsRenderData will be used to render on-flight item position. bud itemsLayoutData is normalized position by grid\n    this.gridItemsRenderData = cloneDeep(itemsLayoutData);\n\n    // modify the position of the dragged item to be the once we want\n    this.gridItemsRenderData[gridItem.id] = {\n      ...draggedItemPos,\n      id: gridItem.id,\n    } as GridItemRenderData;\n    return { gridData: itemsLayoutData, layout: newLayout };\n  }\n}\n"]}