feat: add resizable directive 2

Author: igauch

angular.json

@@ -74,7 +74,8 @@
             "browserTarget": "storybook:build",
             "compodoc": true,
             "compodocArgs": ["-e", "json", "-d", "."],
-            "outputDir": "dist"
+            "outputDir": "dist",
+            "enableProdMode": false // FIXME: https://github.com/storybookjs/storybook/issues/23534
           }
         }
       }

package.json

@@ -9,6 +9,7 @@
     "JounQin <admin@1stG.me> (https://www.1stG.me)"
   ],
   "license": "MIT",
+  "packageManager": "yarn@1.22.21",
   "keywords": [
     "alauda",
     "angular",

scripts/build.js

@@ -11,9 +11,10 @@ const watch = process.argv.includes('--watch');
 
 const debugNgPackage = '../ng-package.debug.json';
 
-const dest = (isDebug ? require(debugNgPackage).dest : 'release') + '/theme';
+const releaseDest = isDebug ? require(debugNgPackage).dest : 'release';
 
 function copyResources() {
+  const themeDest = path.resolve(releaseDest, 'theme');
   gulp
     .src([
       'src/theme/_base-var.scss',
@@ -22,12 +23,16 @@ function copyResources() {
       'src/theme/_theme-preset.scss',
       'src/theme/_mixin.scss',
     ])
-    .pipe(gulp.dest(dest));
+    .pipe(gulp.dest(themeDest));
+
+  gulp
+    .src(['src/resizable/resizable.scss'])
+    .pipe(gulp.dest(path.resolve(releaseDest, 'resizable')));
 
   gulp
     .src('src/theme/style.scss')
     .pipe(sass().on('error', sass.logError))
-    .pipe(gulp.dest(dest));
+    .pipe(gulp.dest(themeDest));
 }
 
 const packagr = ngPackagr

src/resizable/resizable.directive.ts

@@ -1,76 +1,86 @@
-import { DOCUMENT } from '@angular/common';
 import {
   AfterViewInit,
   Directive,
   ElementRef,
   EventEmitter,
-  Inject,
   Input,
   OnDestroy,
+  Optional,
   Output,
   Renderer2,
 } from '@angular/core';
-import { fromEvent, Subject, Subscription, takeUntil } from 'rxjs';
+import { fromEvent, Subject, takeUntil } from 'rxjs';
+
+@Directive({
+  selector: '[auiContainerForResizable]',
+  host: {
+    class: 'aui-container-for-resizable',
+  },
+  standalone: true,
+})
+export class ContainerForResizableDirective {
+  constructor(readonly el: ElementRef) {}
+}
 
 /**
  * 使用此指令需要引入resizable.scss
- * 因为参考线是基于absolute定位的，所以需要在预期的地方加上relative（不自动加是为了避免修改业务布局而导致使用者出现意外的异常）
  */
 @Directive({
   selector: '[auiResizable]',
+  host: {
+    class: 'aui-resizable',
+  },
   standalone: true,
 })
 export class ResizableDirective implements AfterViewInit, OnDestroy {
   @Input()
-  containerElement: Element; // 要插入参考线的容器元素
+  minWidth: string | number;
 
   @Input()
-  minWidth: string;
-
-  @Input()
-  maxWidth: string;
+  maxWidth: string | number;
 
   @Output()
-  resizeStartEvent = new EventEmitter<number>();
+  resizeStart = new EventEmitter<number>();
 
   @Output()
-  resizingEvent = new EventEmitter<number>();
+  resizing = new EventEmitter<number>();
 
   @Output()
-  resizeEndEvent = new EventEmitter<number>();
+  resizeEnd = new EventEmitter<number>();
 
   destroy$$ = new Subject<void>();
+  containerElement: Element;
 
   private readonly element: HTMLElement;
   private initialWidth: number;
   private mouseDownScreenX: number;
   resizeHandle: HTMLElement; // 在指令作用的元素上插入引导分割线，hover到作用元素后出现，拖动事件的宿主
   resizeOverlay: HTMLElement; // 在拖动时创建出一个透明的遮罩层，用以鼠标样式在拖动时总是拖动样式
   resizeBar: HTMLElement; // 拖动时的参考线，该参考线会被插入到 containerElement
-  private mouseUpSubscription: Subscription;
-  private readonly document: Document;
   private handleHasUp: boolean;
+  private readonly BAR_WIDTH = 2;
 
   constructor(
     element: ElementRef,
     readonly renderer2: Renderer2,
-    @Inject(DOCUMENT)
-    private readonly doc: Document,
+    @Optional()
+    private readonly containerDirective: ContainerForResizableDirective,
   ) {
     this.element = element.nativeElement;
-    this.document = this.doc;
+    this.containerElement =
+      this.containerDirective?.el.nativeElement || this.element;
   }
 
   ngAfterViewInit() {
     this.createResizeHandle();
 
-    this.binEvent(this.element, 'mouseover', () => {
+    this.binEvent(this.element, 'mouseover').subscribe(() => {
       this.handleHasUp = true;
       if (!this.resizeBar) {
         this.setResizeHandleVisible(true);
       }
     });
-    this.binEvent(this.element, 'mouseout', () => {
+    this.binEvent(this.element, 'mouseout').subscribe(() => {
       this.handleHasUp = false;
       this.setResizeHandleVisible(false);
     });
@@ -84,38 +94,36 @@ export class ResizableDirective implements AfterViewInit, OnDestroy {
   private binEvent<E>(
     target: HTMLElement | Document | Window,
     eventType: string,
-    callback: (e: E) => void,
   ) {
-    return fromEvent<E>(target, eventType)
-      .pipe(takeUntil(this.destroy$$))
-      .subscribe(callback);
+    return fromEvent<E>(target, eventType).pipe(takeUntil(this.destroy$$));
   }
 
   private setResizeHandleVisible(isVisible: boolean) {
-    this.resizeHandle &&
+    if (this.resizeHandle) {
       this.renderer2.setStyle(
         this.resizeHandle,
         'visibility',
         isVisible ? 'visible' : 'hidden',
       );
+    }
   }
 
   private createResizeHandle() {
-    if (!this.resizeHandle) {
-      this.resizeHandle = this.renderer2.createElement('div');
-      this.renderer2.addClass(this.resizeHandle, 'resize-handle');
+    if (this.resizeHandle) {
+      return;
+    }
 
-      this.binEvent(this.resizeHandle, 'click', (e: Event) =>
-        e.stopPropagation(),
-      );
-      this.binEvent(
-        this.resizeHandle,
-        'mousedown',
-        this.onMousedown.bind(this),
-      );
+    this.resizeHandle = this.renderer2.createElement('div');
+    this.renderer2.addClass(this.resizeHandle, 'resize-handle');
 
-      this.renderer2.appendChild(this.element, this.resizeHandle);
-    }
+    this.binEvent<Event>(this.resizeHandle, 'click').subscribe(e =>
+      e.stopPropagation(),
+    );
+    this.binEvent<MouseEvent>(this.resizeHandle, 'mousedown').subscribe(e => {
+      this.onMousedown(e);
+    });
+
+    this.renderer2.appendChild(this.element, this.resizeHandle);
   }
 
   private createResizeOverlay() {
@@ -130,7 +138,7 @@ export class ResizableDirective implements AfterViewInit, OnDestroy {
     this.renderer2.setStyle(
       this.resizeBar,
       'left',
-      this.element.clientWidth + this.getOffset() + 'px',
+      this.element.clientWidth + this.getOffset() - this.BAR_WIDTH + 'px',
     );
     this.renderer2.appendChild(this.containerElement, this.resizeBar);
   }
@@ -143,42 +151,42 @@ export class ResizableDirective implements AfterViewInit, OnDestroy {
     this.setResizeHandleVisible(false);
 
     this.initialWidth = this.element.clientWidth;
-    this.resizeStartEvent.emit(this.initialWidth);
+    this.resizeStart.emit(this.initialWidth);
     this.mouseDownScreenX = event.clientX;
     this.createResizeOverlay();
     this.createResizeBar();
 
-    this.mouseUpSubscription = this.binEvent<MouseEvent>(
+    const mouseMoveSubscription = this.binEvent<MouseEvent>(
       document,
-      'mouseup',
-      ev => this.onMouseup(ev),
-    );
+      'mousemove',
+    ).subscribe(e => {
+      this.move(e);
+    });
 
-    this.binEvent(document, 'mousemove', this.move);
+    const mouseUpSubscription = this.binEvent<MouseEvent>(
+      document,
+      'mouseup',
+    ).subscribe(ev => {
+      this.onMouseup(ev);
+      mouseUpSubscription.unsubscribe();
+      mouseMoveSubscription.unsubscribe();
+    });
   }
 
   private onMouseup(event: MouseEvent): void {
     this.handleHasUp && this.setResizeHandleVisible(true);
 
-    const movementX = event.clientX - this.mouseDownScreenX;
-    const newWidth = this.initialWidth + movementX;
-    const finalWidth = this.getFinalWidth(newWidth);
-
-    this.renderer2.removeChild(this.element, this.resizeOverlay);
+    this.renderer2.removeChild(this.containerElement, this.resizeOverlay);
     this.resizeOverlay = null;
     this.renderer2.removeChild(this.containerElement, this.resizeBar);
     this.resizeBar = null;
 
-    this.resizeEndEvent.emit(finalWidth);
-
-    if (this.mouseUpSubscription && !this.mouseUpSubscription.closed) {
-      this._destroySubscription();
-    }
-
-    this.document.removeEventListener('mousemove', this.move);
+    const movementX = event.clientX - this.mouseDownScreenX;
+    const newWidth = this.initialWidth + movementX;
+    this.resizeEnd.emit(this.getFinalWidth(newWidth));
   }
 
-  private readonly move = (event: MouseEvent) => {
+  private move(event: MouseEvent) {
     if (!this.resizeBar) {
       return;
     }
@@ -189,14 +197,14 @@ export class ResizableDirective implements AfterViewInit, OnDestroy {
     this.renderer2.setStyle(
       this.resizeBar,
       'left',
-      `${finalWidth + this.getOffset()}px`,
+      `${finalWidth + this.getOffset() - this.BAR_WIDTH}px`,
     );
-    this.resizingEvent.emit(finalWidth);
-  };
+    this.resizing.emit(finalWidth);
+  }
 
   private getFinalWidth(newWidth: number): number {
     // 不能超出边界
-    const _max = this.containerElement.clientWidth - this.getOffset();
+    const _max = this.containerElement.clientWidth + this.getOffset();
     const minWidth = this.handleWidth(this.minWidth || this.getOffset());
 
     const maxWidth = this.handleWidth(this.maxWidth || _max);
@@ -206,29 +214,21 @@ export class ResizableDirective implements AfterViewInit, OnDestroy {
   private getOffset() {
     return (
       this.element.getBoundingClientRect().left -
-      this.containerElement.getBoundingClientRect().left -
-      2 // 2 是resizeBar的宽度
+      this.containerElement.getBoundingClientRect().left
     );
   }
 
   private handleWidth(width: string | number) {
-    if (!width) {
-      return;
-    }
     if (typeof width === 'number') {
       return width;
     }
+    if (!width) {
+      return;
+    }
     if (width.includes('%')) {
       const tableWidth = this.containerElement.clientWidth;
       return (tableWidth * Number.parseFloat(width)) / 100;
     }
     return Number.parseFloat(width.replace(/\D+/, ''));
   }
-
-  private _destroySubscription() {
-    if (this.mouseUpSubscription) {
-      this.mouseUpSubscription.unsubscribe();
-      this.mouseUpSubscription = null;
-    }
-  }
 }

src/resizable/resizable.scss

@@ -1,5 +1,10 @@
 @import '../theme/var';
 
+.aui-resizable,
+.aui-container-for-resizable {
+  position: relative;
+}
+
 .resize-handle {
   display: inline-block;
   position: absolute;

src/table/table-cell.directive.ts

@@ -1,11 +1,7 @@
 import { CdkCell, CdkColumnDef } from '@angular/cdk/table';
 import { Directive, ElementRef, Input } from '@angular/core';
 
-import { buildBem } from '../utils';
-
-import { TABLE_PREFIX_CLASSNAME } from './table.component';
-
-const bem = buildBem(TABLE_PREFIX_CLASSNAME);
+import { tableBem } from './table.component';
 
 /** Cell template container that adds the right classes and role. */
 @Directive({
@@ -25,7 +21,7 @@ export class TableCellDirective extends CdkCell {
   constructor(columnDef: CdkColumnDef, elementRef: ElementRef<HTMLElement>) {
     super(columnDef, elementRef);
     elementRef.nativeElement.classList.add(
-      bem.element(`column-${columnDef.cssClassFriendlyName}`),
+      tableBem.element(`column-${columnDef.cssClassFriendlyName}`),
     );
   }
 }

src/table/table-col-resizable.directive.ts

@@ -2,10 +2,10 @@ import { AfterViewInit, Directive, inject, Input } from '@angular/core';
 import { takeUntil } from 'rxjs';
 
 import { ResizableDirective } from '../resizable';
-import { buildBem, handlePixel } from '../utils';
+import { handlePixel } from '../utils';
 
 import {
-  TABLE_PREFIX_CLASSNAME,
+  tableBem,
   TableColumnDefDirective,
   TableComponent,
   TableScrollWrapperDirective,
@@ -41,10 +41,8 @@ export class TableColResizableDirective
       this.tableScrollWrapperDirective || this.tableComponent
     ).el.nativeElement;
 
-    const bem = buildBem(TABLE_PREFIX_CLASSNAME);
-
-    this.resizeEndEvent.pipe(takeUntil(this.destroy$$)).subscribe(width => {
-      const className = bem.element(
+    this.resizeEnd.pipe(takeUntil(this.destroy$$)).subscribe(width => {
+      const className = tableBem.element(
         `column-${this.tableColumnDefDirective.cssClassFriendlyName}`,
       );
       if (!this.hostAttr) {