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@@ -1,18 +1,25 @@
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-import { Component, Input, Output, EventEmitter, AfterViewInit, OnDestroy, Renderer2, Inject, ElementRef } from '@angular/core';
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+import { Component, Input, Output, EventEmitter, AfterViewInit, OnDestroy, Renderer2, ElementRef, signal, computed, effect } from '@angular/core';
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import { CommonModule } from '@angular/common';
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import { MatButtonModule } from '@angular/material/button';
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import { MatIconModule } from '@angular/material/icon';
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import { MatProgressSpinnerModule } from '@angular/material/progress-spinner';
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export interface StickyHeaderButton {
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- title: string; // 显示文本
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- name: string; // 标识符（事件返回）
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- icon?: string; // 可选图标
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+ title: string;
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+ name: string;
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+ icon?: string;
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color?: 'primary' | 'accent' | 'warn';
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disabled?: boolean;
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loading?: boolean;
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}
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+export interface DynamicSection {
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+ id: number;
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+ content: string;
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+ style?: 'hint' | 'debug-info' | 'debug-urls' | 'custom';
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+ customClass?: string;
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+}
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+
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@Component({
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selector: 'app-sticky-header',
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standalone: true,
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@@ -25,36 +32,31 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
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private renderer: Renderer2,
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private elementRef: ElementRef
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) {}
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-
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+
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// 滚动优化相关属性
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private scrollRafId: number | null = null;
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private lastScrollTop = 0;
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- private lastIsLocked = false;
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- private lastIsCompact = false;
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+ // 尺寸缓存
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+ private initialHeight = 0;
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+ private initialTop = 0;
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+ private maxHeight = 0; // header最大高度
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+ private distanceFromTop = 0; // header距离文档顶部距离
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+ private minHeight = 40; // 最小高度（与CSS中compact状态一致）
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+ private resizeObserver: ResizeObserver | null = null;
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+ private currentScrollContainer: HTMLElement | null = null;
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+
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+ // 滚动检测和状态缓存
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+ private scrollListener: (() => void) | null = null;
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+ private isAutoDetecting = false;
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+ private lastIsLocked = false; // 状态变化检测
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+ private lastIsCompact = false;
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+
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/** 标题文本 */
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@Input() title = '';
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-
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- /** 按钮文本 */
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- @Input() buttonText = '操作';
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-
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- /** 按钮图标 */
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- @Input() buttonIcon = 'add';
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-
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- /** 按钮颜色，默认primary */
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- @Input() buttonColor: 'primary' | 'accent' | 'warn' = 'primary';
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-
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- /** 多个按钮配置，如果设置则忽略单个按钮属性 */
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+
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+ /** 按钮配置数组 */
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@Input() buttons: StickyHeaderButton[] = [];
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-
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- /** 是否禁用按钮 */
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- @Input() disabled = false;
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-
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- /** 是否显示加载状态 */
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- @Input() loading = false;
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-
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- /** 滚动阈值（像素），默认为5 */
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- @Input() scrollThreshold = 5;
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/** 是否启用自动滚动检测 */
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@Input() autoDetect = false;
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@@ -62,77 +64,78 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
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/** 滚动容器选择器，默认为'.content-area'，设为'window'监听窗口滚动 */
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@Input() scrollContainer = '.content-area';
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- /** 紧凑模式阈值（像素），默认为50 */
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- @Input() compactThreshold = 50;
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-
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- /** 是否显示调试信息框 */
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- @Input() showDebugInfo = false;
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-
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- /** 调试信息数据源 */
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- @Input() debugDataSource = '';
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-
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- /** 调试信息记录数 */
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- @Input() debugRecordCount = 0;
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-
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- /** 调试信息更新时间 */
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- @Input() debugLastUpdated = '';
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-
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- /** 调试信息是否使用模拟数据 */
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- @Input() debugUseMockData = false;
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-
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- /** 调试信息注册API URL */
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- @Input() debugRegisterUrl = '';
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-
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- /** 调试信息列表API URL */
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- @Input() debugListUrl = '';
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-
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- /** 提示文本，显示在标题下方 */
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- @Input() hintText = '';
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-
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- /** 是否已滚动（由父组件控制，向后兼容） */
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- @Input() isScrolled = false;
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+ /** 宽度参考目标选择器（用于锁定状态宽度匹配），如未设置则自动检测 */
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+ @Input() widthTarget: string | null = null;
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- /** 是否锁定在顶部（到达滚动容器顶部） */
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- @Input() isLocked = false;
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+ /** 按钮点击事件 */
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+ @Output() buttonAction = new EventEmitter<string>();
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- /** 是否缩小状态（锁定后进一步缩小） */
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- @Input() isCompact = false;
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+ // 信号状态
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+ isScrolled = signal(false);
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+ isLocked = signal(false);
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+ isCompact = signal(false);
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+ currentHeight = signal<number | null>(null); // 动态高度
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+ headerWidth = signal<string | number | null>(null);
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+ headerLeft = signal<string | number | null>(null);
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+ dynamicSections = signal<DynamicSection[]>([]);
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- /** 锁定时的宽度（像素或百分比） */
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- @Input() headerWidth: string | number | null = null;
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+ // 计算属性：当前压缩比例和高度
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+ compressionRatio = computed(() => {
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+ if (!this.isLocked()) return 0;
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+ const height = this.currentHeight();
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+ if (height === null || this.maxHeight <= this.minHeight) return 0;
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+
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+ // 计算压缩比例：1 - (当前高度 - 最小高度) / (最大高度 - 最小高度)
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+ const ratio = 1 - (height - this.minHeight) / (this.maxHeight - this.minHeight);
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+ return Math.max(0, Math.min(1, ratio)); // 限制在0-1之间
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+ });
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- /** 锁定时的左侧偏移（像素） */
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- @Input() headerLeft: string | number | null = null;
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+ // 添加动态区域的方法
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+ add(index: number, content: string, style?: string, customClass?: string): void {
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+ const sections = this.dynamicSections();
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+ const existingIndex = sections.findIndex(s => s.id === index);
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+
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+ const newSection: DynamicSection = {
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+ id: index,
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+ content,
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+ style: style as any || 'hint',
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+ customClass
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+ };
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- /** 宽度参考目标选择器（用于锁定状态宽度匹配），如未设置则使用滚动容器 */
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- @Input() widthTarget: string | null = null;
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+ if (existingIndex >= 0) {
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+ const updated = [...sections];
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+ updated[existingIndex] = newSection;
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+ this.dynamicSections.set(updated);
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+ } else {
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+ this.dynamicSections.set([...sections, newSection].sort((a, b) => a.id - b.id));
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+ }
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+ }
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- /** 标题区域最小高度（用于测试或固定高度布局），如 '200px', '10rem'，未设置则由内容决定 */
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- @Input() headerHeight: string | null = null;
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+ // 移除动态区域
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+ remove(index: number): void {
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+ this.dynamicSections.set(this.dynamicSections().filter(s => s.id !== index));
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+ }
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- /** 按钮点击事件 */
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- @Output() buttonClick = new EventEmitter<void>();
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-
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- /** 多个按钮点击事件，返回按钮name标识符 */
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- @Output() buttonAction = new EventEmitter<string>();
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+ // 清除所有动态区域
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+ clear(): void {
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+ this.dynamicSections.set([]);
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+ }
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- // 自动滚动检测的私有属性
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- private scrollListener: (() => void) | null = null;
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- private canScroll = false;
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- private isAutoDetecting = false;
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+ // 获取渲染内容（支持变量绑定）
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+ getRenderedContent(section: DynamicSection): string {
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+ const content = section.content;
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+ // 简单变量绑定：{propertyName} 替换为组件属性值
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+ return content.replace(/\{(\w+)\}/g, (match, key) => {
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+ // 从组件实例中获取值
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+ const value = (this as any)[key];
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+ return value !== undefined ? String(value) : match;
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+ });
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+ }
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- onButtonClick(name?: string) {
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- if (this.buttons.length > 0) {
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- // 多个按钮模式
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- const button = this.buttons.find(b => b.name === name);
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- if (button && !button.disabled && !button.loading) {
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- this.buttonAction.emit(name);
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- }
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- } else {
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- // 单个按钮模式（向后兼容）
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- if (!this.disabled && !this.loading) {
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- this.buttonClick.emit();
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- }
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+ onButtonClick(name: string) {
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+ const button = this.buttons.find(b => b.name === name);
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+ if (button && !button.disabled && !button.loading) {
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+ this.buttonAction.emit(name);
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}
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}
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@@ -142,70 +145,53 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
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}
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}
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- ngOnDestroy() {
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+ ngOnDestroy() {
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this.cleanupScrollListener();
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if (this.scrollRafId) {
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cancelAnimationFrame(this.scrollRafId);
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this.scrollRafId = null;
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}
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+ if (this.resizeObserver) {
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+ this.resizeObserver.disconnect();
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+ this.resizeObserver = null;
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+ }
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}
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- private setupAutoScrollDetection() {
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+ private setupAutoScrollDetection() {
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if (this.isAutoDetecting) return;
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this.isAutoDetecting = true;
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+
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const container = this.getScrollContainer();
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const isWindowScroll = this.scrollContainer === 'window';
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+ this.currentScrollContainer = isWindowScroll ? null : container;
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+
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+ // 初始化尺寸缓存（根据滚动类型传递正确的容器）
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+ this.cacheInitialDimensions(this.currentScrollContainer || undefined);
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+ this.setupResizeObserver();
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if (isWindowScroll) {
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- // 窗口滚动
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- this.canScroll = this.checkWindowScrollable();
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- const scrollHeight = document.body.scrollHeight || document.documentElement.scrollHeight || 0;
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- const clientHeight = window.innerHeight || document.documentElement.clientHeight || 0;
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+ console.log(`sticky-header: 启用窗口滚动检测`);
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- console.log(`sticky-header: 窗口滚动性检查 - scrollHeight: ${scrollHeight}, clientHeight: ${clientHeight}, canScroll: ${this.canScroll}`);
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+ this.scrollListener = this.renderer.listen(
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+ 'window',
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+ 'scroll',
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+ this.handleWindowScroll.bind(this)
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+ );
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- if (this.canScroll) {
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- this.scrollListener = this.renderer.listen(
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- 'window',
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- 'scroll',
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- this.handleWindowScroll.bind(this)
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- );
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- console.log('sticky-header: 自动滚动检测已启用，窗口滚动');
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-
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- // 初始检查窗口滚动位置
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- this.checkInitialWindowScrollPosition();
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- } else {
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- console.log('sticky-header: 窗口内容不足，禁用自动检测，设置isLocked=false, isCompact=false');
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- this.isLocked = false;
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- this.isCompact = false;
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- this.isScrolled = false;
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- }
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+ // 初始检查窗口滚动位置
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+ this.checkInitialWindowScrollPosition();
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} else if (container) {
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|
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- // 容器滚动
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|
|
- this.canScroll = this.checkScrollable(container);
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|
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- const scrollHeight = container.scrollHeight || 0;
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|
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- const clientHeight = container.clientHeight || 0;
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+ console.log(`sticky-header: 启用容器滚动检测，容器: ${this.scrollContainer}`);
|
|
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|
186
|
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|
190
|
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- console.log(`sticky-header: 容器滚动性检查 - scrollHeight: ${scrollHeight}, clientHeight: ${clientHeight}, canScroll: ${this.canScroll}, selector: ${this.scrollContainer}`);
|
|
|
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|
+ this.scrollListener = this.renderer.listen(
|
|
|
188
|
+ container,
|
|
|
189
|
+ 'scroll',
|
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190
|
+ this.handleScroll.bind(this)
|
|
|
191
|
+ );
|
|
191
|
192
|
|
|
192
|
|
- if (this.canScroll) {
|
|
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|
|
- this.scrollListener = this.renderer.listen(
|
|
194
|
|
- container,
|
|
195
|
|
- 'scroll',
|
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196
|
|
- this.handleScroll.bind(this)
|
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|
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- );
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198
|
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- console.log('sticky-header: 自动滚动检测已启用，容器:', this.scrollContainer);
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|
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|
|
-
|
|
200
|
|
- // 初始检查滚动位置
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|
201
|
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- this.checkInitialScrollPosition(container);
|
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- } else {
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203
|
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- console.log('sticky-header: 滚动容器内容不足，禁用自动检测，设置isLocked=false, isCompact=false');
|
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204
|
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- // 确保状态为false
|
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205
|
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- this.isLocked = false;
|
|
206
|
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- this.isCompact = false;
|
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207
|
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- this.isScrolled = false;
|
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208
|
|
- }
|
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193
|
+ // 初始检查滚动位置
|
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194
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+ this.checkInitialScrollPosition(container);
|
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|
195
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} else {
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|
196
|
console.warn('sticky-header: 未找到滚动容器:', this.scrollContainer);
|
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|
197
|
}
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@@ -213,7 +199,7 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
|
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213
|
199
|
|
|
214
|
200
|
private getScrollContainer(): HTMLElement | null {
|
|
215
|
201
|
if (this.scrollContainer === 'window') {
|
|
216
|
|
- return null; // 表示窗口滚动
|
|
|
202
|
+ return null;
|
|
217
|
203
|
}
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|
218
|
204
|
|
|
219
|
205
|
// 从当前元素向上查找最近的匹配容器
|
|
|
@@ -226,95 +212,124 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
|
|
226
|
212
|
return document.querySelector(this.scrollContainer) as HTMLElement;
|
|
227
|
213
|
}
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|
228
|
214
|
|
|
229
|
|
- private checkScrollable(container: HTMLElement): boolean {
|
|
230
|
|
- if (!container) return false;
|
|
|
215
|
+ /**
|
|
|
216
|
+ * 自动获取宽度参考目标元素
|
|
|
217
|
+ * 优先级：1. widthTarget设置 2. 滚动容器 3. 自动查找合适父级容器
|
|
|
218
|
+ */
|
|
|
219
|
+ private getAutoWidthTarget(): HTMLElement | null {
|
|
|
220
|
+ // 情况1: widthTarget已设置，使用指定元素
|
|
|
221
|
+ if (this.widthTarget) {
|
|
|
222
|
+ const target = document.querySelector(this.widthTarget) as HTMLElement;
|
|
|
223
|
+ if (target) {
|
|
|
224
|
+ console.log(`sticky-header: 使用指定宽度目标: ${this.widthTarget}`);
|
|
|
225
|
+ return target;
|
|
|
226
|
+ }
|
|
|
227
|
+ console.warn(`sticky-header: 未找到宽度目标元素: ${this.widthTarget}`);
|
|
|
228
|
+ }
|
|
231
|
229
|
|
|
232
|
|
- const scrollHeight = container.scrollHeight || 0;
|
|
233
|
|
- const clientHeight = container.clientHeight || 0;
|
|
|
230
|
+ // 情况2: 容器滚动模式，使用滚动容器
|
|
|
231
|
+ if (this.scrollContainer !== 'window') {
|
|
|
232
|
+ const container = this.getScrollContainer();
|
|
|
233
|
+ if (container) {
|
|
|
234
|
+ console.log(`sticky-header: 自动使用滚动容器作为宽度目标`);
|
|
|
235
|
+ return container;
|
|
|
236
|
+ }
|
|
|
237
|
+ }
|
|
234
|
238
|
|
|
235
|
|
- // 如果内容高度大于可视区域高度，说明可以滚动
|
|
236
|
|
- // 添加5px容差，避免因计算误差导致的误判
|
|
237
|
|
- const canScroll = scrollHeight > clientHeight + 5;
|
|
238
|
|
- return canScroll;
|
|
|
239
|
+ // 情况3: 窗口滚动模式，自动查找合适的父级容器
|
|
|
240
|
+ return this.findSuitableParentContainer();
|
|
239
|
241
|
}
|
|
240
|
242
|
|
|
241
|
|
- private checkWindowScrollable(): boolean {
|
|
242
|
|
- const scrollHeight = document.body.scrollHeight || document.documentElement.scrollHeight || 0;
|
|
243
|
|
- const clientHeight = window.innerHeight || document.documentElement.clientHeight || 0;
|
|
|
243
|
+ /**
|
|
|
244
|
+ * 查找合适的父级容器（用于窗口滚动模式）
|
|
|
245
|
+ */
|
|
|
246
|
+ private findSuitableParentContainer(): HTMLElement | null {
|
|
|
247
|
+ // 算法1: 查找最近的滚动容器祖先
|
|
|
248
|
+ const scrollContainer = this.findClosestScrollableAncestor();
|
|
|
249
|
+ if (scrollContainer) return scrollContainer;
|
|
244
|
250
|
|
|
245
|
|
- const canScroll = scrollHeight > clientHeight + 5;
|
|
246
|
|
- return canScroll;
|
|
247
|
|
- }
|
|
248
|
|
-
|
|
249
|
|
- private findContentContainer(): HTMLElement | null {
|
|
250
|
|
- // 尝试查找内容区域容器，优先级：
|
|
251
|
|
- // 1. .content-area 类 (我们在app.component.html中添加的)
|
|
252
|
|
- // 2. 包含router-outlet的容器
|
|
253
|
|
- // 3. 右侧内容区域
|
|
254
|
|
- const selectors = [
|
|
255
|
|
- '.content-area',
|
|
256
|
|
- '.flex-1.overflow-auto',
|
|
|
251
|
+ // 算法2: 查找常见的内容区域选择器
|
|
|
252
|
+ const commonSelectors = [
|
|
|
253
|
+ '.content-area', // ng-configure应用结构
|
|
|
254
|
+ '.flex-1.overflow-auto', // 常见flex布局
|
|
257
|
255
|
'div[class*="content"]',
|
|
258
|
256
|
'div[class*="main"]',
|
|
259
|
257
|
'div[class*="container"]'
|
|
260
|
258
|
];
|
|
261
|
259
|
|
|
262
|
|
- for (const selector of selectors) {
|
|
263
|
|
- const container = document.querySelector(selector) as HTMLElement;
|
|
264
|
|
- if (container) {
|
|
265
|
|
- console.log(`sticky-header: 找到内容容器: ${selector}, 位置: ${container.getBoundingClientRect().left}px, 宽度: ${container.getBoundingClientRect().width}px`);
|
|
266
|
|
- return container;
|
|
|
260
|
+ for (const selector of commonSelectors) {
|
|
|
261
|
+ const element = document.querySelector(selector) as HTMLElement;
|
|
|
262
|
+ if (element && this.elementRef.nativeElement.compareDocumentPosition(element) & Node.DOCUMENT_POSITION_CONTAINS) {
|
|
|
263
|
+ console.log(`sticky-header: 找到内容容器: ${selector}`);
|
|
|
264
|
+ return element;
|
|
267
|
265
|
}
|
|
268
|
266
|
}
|
|
269
|
267
|
|
|
270
|
|
- console.warn('sticky-header: 未找到内容容器');
|
|
271
|
|
- return null;
|
|
|
268
|
+ // 算法3: 回退到视口
|
|
|
269
|
+ console.log('sticky-header: 未找到合适容器，使用视口宽度');
|
|
|
270
|
+ return null; // null表示使用视口
|
|
272
|
271
|
}
|
|
273
|
272
|
|
|
274
|
|
- private getWidthTargetElement(): HTMLElement | null {
|
|
275
|
|
- // 如果设置了widthTarget，优先使用它
|
|
276
|
|
- if (this.widthTarget) {
|
|
277
|
|
- const target = document.querySelector(this.widthTarget) as HTMLElement;
|
|
278
|
|
- if (target) {
|
|
279
|
|
- console.log(`sticky-header: 找到宽度目标元素: ${this.widthTarget}, 宽度: ${target.getBoundingClientRect().width}px`);
|
|
280
|
|
- return target;
|
|
|
273
|
+ /**
|
|
|
274
|
+ * 查找最近的可滚动祖先容器
|
|
|
275
|
+ */
|
|
|
276
|
+ private findClosestScrollableAncestor(): HTMLElement | null {
|
|
|
277
|
+ let element = this.elementRef.nativeElement.parentElement;
|
|
|
278
|
+
|
|
|
279
|
+ while (element && element !== document.body) {
|
|
|
280
|
+ const style = window.getComputedStyle(element);
|
|
|
281
|
+ const overflow = style.overflow + style.overflowY + style.overflowX;
|
|
|
282
|
+
|
|
|
283
|
+ if (overflow.includes('auto') || overflow.includes('scroll')) {
|
|
|
284
|
+ console.log(`sticky-header: 找到可滚动祖先容器`);
|
|
|
285
|
+ return element;
|
|
281
|
286
|
}
|
|
282
|
|
- console.warn(`sticky-header: 未找到宽度目标元素: ${this.widthTarget}`);
|
|
|
287
|
+
|
|
|
288
|
+ element = element.parentElement;
|
|
283
|
289
|
}
|
|
284
|
290
|
|
|
285
|
|
- // 否则根据滚动容器类型返回相应元素
|
|
286
|
|
- if (this.scrollContainer === 'window') {
|
|
287
|
|
- return this.findContentContainer();
|
|
288
|
|
- } else {
|
|
289
|
|
- const container = this.getScrollContainer();
|
|
290
|
|
- return container;
|
|
291
|
|
- }
|
|
|
291
|
+ return null;
|
|
292
|
292
|
}
|
|
293
|
293
|
|
|
294
|
|
- private getSidebarWidth(): number {
|
|
295
|
|
- // 从localStorage读取侧边栏宽度，默认320px
|
|
296
|
|
- try {
|
|
297
|
|
- const savedWidth = localStorage.getItem('sidebarWidth');
|
|
298
|
|
- if (savedWidth) {
|
|
299
|
|
- const width = parseInt(savedWidth, 10);
|
|
300
|
|
- if (!isNaN(width) && width >= 200 && width <= 600) {
|
|
301
|
|
- return width;
|
|
302
|
|
- }
|
|
303
|
|
- }
|
|
304
|
|
- } catch (e) {
|
|
305
|
|
- console.warn('sticky-header: 读取侧边栏宽度失败', e);
|
|
|
294
|
+ private cacheInitialDimensions(container?: HTMLElement): void {
|
|
|
295
|
+ const element = this.elementRef.nativeElement;
|
|
|
296
|
+ const rect = element.getBoundingClientRect();
|
|
|
297
|
+ this.initialHeight = rect.height;
|
|
|
298
|
+ this.maxHeight = rect.height; // 设置最大高度
|
|
|
299
|
+
|
|
|
300
|
+ if (container) {
|
|
|
301
|
+ // 容器滚动：计算相对于容器的偏移量
|
|
|
302
|
+ const containerRect = container.getBoundingClientRect();
|
|
|
303
|
+ this.initialTop = rect.top - containerRect.top + container.scrollTop;
|
|
|
304
|
+ console.log(`sticky-header: 容器滚动尺寸缓存 - 高度: ${this.initialHeight}px, 最大高度: ${this.maxHeight}px, 相对容器顶部: ${this.initialTop}px, 容器scrollTop: ${container.scrollTop}`);
|
|
|
305
|
+ } else if (typeof window !== 'undefined') {
|
|
|
306
|
+ // 窗口滚动：计算绝对距离
|
|
|
307
|
+ this.initialTop = rect.top + (window.scrollY || document.documentElement.scrollTop || 0);
|
|
|
308
|
+ this.distanceFromTop = this.initialTop; // 保存距离文档顶部距离
|
|
|
309
|
+ console.log(`sticky-header: 窗口滚动尺寸缓存 - 高度: ${this.initialHeight}px, 最大高度: ${this.maxHeight}px, 距离文档顶部: ${this.distanceFromTop}px`);
|
|
|
310
|
+ } else {
|
|
|
311
|
+ this.initialTop = rect.top;
|
|
|
312
|
+ console.log(`sticky-header: 尺寸缓存（无window）- 高度: ${this.initialHeight}px, 最大高度: ${this.maxHeight}px, 距离顶部: ${this.initialTop}px`);
|
|
306
|
313
|
}
|
|
307
|
|
- return 320; // 默认宽度
|
|
308
|
314
|
}
|
|
309
|
315
|
|
|
310
|
|
- private handleWindowScroll() {
|
|
311
|
|
- // 如果窗口不可滚动，不处理滚动事件
|
|
312
|
|
- if (!this.canScroll) {
|
|
313
|
|
- console.log('sticky-header: 窗口不可滚动，跳过处理');
|
|
|
316
|
+ private setupResizeObserver(): void {
|
|
|
317
|
+ if (typeof ResizeObserver === 'undefined') {
|
|
|
318
|
+ console.warn('sticky-header: ResizeObserver 不支持，尺寸变化将不会自动更新');
|
|
314
|
319
|
return;
|
|
315
|
320
|
}
|
|
316
|
|
-
|
|
317
|
|
- // 使用requestAnimationFrame防抖，避免频繁更新
|
|
|
321
|
+
|
|
|
322
|
+ this.resizeObserver = new ResizeObserver(() => {
|
|
|
323
|
+ console.log('sticky-header: header尺寸变化，重新缓存');
|
|
|
324
|
+ this.cacheInitialDimensions(this.currentScrollContainer || undefined);
|
|
|
325
|
+ });
|
|
|
326
|
+
|
|
|
327
|
+ this.resizeObserver.observe(this.elementRef.nativeElement);
|
|
|
328
|
+ console.log('sticky-header: ResizeObserver 已启动');
|
|
|
329
|
+ }
|
|
|
330
|
+
|
|
|
331
|
+ private handleWindowScroll() {
|
|
|
332
|
+ // 使用requestAnimationFrame防抖
|
|
318
|
333
|
if (this.scrollRafId) {
|
|
319
|
334
|
cancelAnimationFrame(this.scrollRafId);
|
|
320
|
335
|
}
|
|
|
@@ -326,104 +341,92 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
|
|
326
|
341
|
|
|
327
|
342
|
// 检查滚动位置是否显著变化，避免微小滚动触发状态更新
|
|
328
|
343
|
const scrollDelta = Math.abs(scrollTop - this.lastScrollTop);
|
|
329
|
|
- if (scrollDelta < 1) { // 小于1像素的变化忽略
|
|
|
344
|
+ if (scrollDelta < 3) {
|
|
330
|
345
|
return;
|
|
331
|
346
|
}
|
|
332
|
347
|
|
|
333
|
348
|
this.lastScrollTop = scrollTop;
|
|
334
|
349
|
|
|
335
|
|
- // 计算新状态
|
|
336
|
|
- const newIsScrolled = scrollTop > this.scrollThreshold;
|
|
337
|
|
- const newIsLocked = scrollTop > this.scrollThreshold;
|
|
338
|
|
- const newIsCompact = scrollTop > this.compactThreshold;
|
|
|
350
|
+ // 计算压缩状态
|
|
|
351
|
+ const { ratio, height, isLocked, isCompact } = this.calculateCompression(scrollTop);
|
|
|
352
|
+ const isScrolled = ratio > 0;
|
|
339
|
353
|
|
|
340
|
|
- // 检查状态是否真正变化，避免不必要更新
|
|
|
354
|
+ // 检查状态或高度是否真正变化，避免不必要更新
|
|
|
355
|
+ const currentHeightValue = this.currentHeight();
|
|
|
356
|
+ const heightChanged = currentHeightValue === null || Math.abs(height - currentHeightValue) > 1;
|
|
341
|
357
|
const stateChanged =
|
|
342
|
|
- newIsLocked !== this.lastIsLocked ||
|
|
343
|
|
- newIsCompact !== this.lastIsCompact ||
|
|
344
|
|
- newIsScrolled !== this.isScrolled;
|
|
|
358
|
+ isLocked !== this.lastIsLocked ||
|
|
|
359
|
+ isCompact !== this.lastIsCompact ||
|
|
|
360
|
+ isScrolled !== this.isScrolled();
|
|
345
|
361
|
|
|
346
|
|
- if (!stateChanged) {
|
|
347
|
|
- console.log(`sticky-header: 滚动位置变化但状态未变，scrollTop=${scrollTop}, isLocked=${newIsLocked}, isCompact=${newIsCompact}`);
|
|
|
362
|
+ if (!stateChanged && !heightChanged) {
|
|
|
363
|
+ console.log(`sticky-header: 窗口滚动位置变化但状态和高度未变，scrollTop=${scrollTop}, ratio=${ratio.toFixed(2)}, isLocked=${isLocked}, isCompact=${isCompact}, height=${height.toFixed(0)}px`);
|
|
348
|
364
|
return;
|
|
349
|
365
|
}
|
|
350
|
366
|
|
|
351
|
|
- this.lastIsLocked = newIsLocked;
|
|
352
|
|
- this.lastIsCompact = newIsCompact;
|
|
|
367
|
+ this.lastIsLocked = isLocked;
|
|
|
368
|
+ this.lastIsCompact = isCompact;
|
|
353
|
369
|
|
|
354
|
|
- // 更新滚动状态
|
|
355
|
|
- this.isScrolled = newIsScrolled;
|
|
356
|
|
- this.isLocked = newIsLocked;
|
|
357
|
|
- this.isCompact = newIsCompact;
|
|
|
370
|
+ // 更新状态
|
|
|
371
|
+ this.currentHeight.set(height);
|
|
|
372
|
+ this.isScrolled.set(isScrolled);
|
|
|
373
|
+ this.isLocked.set(isLocked);
|
|
|
374
|
+ this.isCompact.set(isCompact);
|
|
358
|
375
|
|
|
359
|
|
- console.log(`sticky-header: 滚动状态更新，scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}`);
|
|
|
376
|
+ console.log(`sticky-header: 窗口滚动状态更新，scrollTop=${scrollTop}, ratio=${ratio.toFixed(2)}, height=${height.toFixed(0)}px, isLocked=${isLocked}, isCompact=${isCompact}`);
|
|
360
|
377
|
|
|
361
|
378
|
// 设置宽度匹配容器
|
|
362
|
|
- if (this.isLocked) {
|
|
363
|
|
- // 使用宽度目标元素计算宽度
|
|
364
|
|
- const widthTargetElement = this.getWidthTargetElement();
|
|
365
|
|
- if (widthTargetElement) {
|
|
366
|
|
- const rect = widthTargetElement.getBoundingClientRect();
|
|
367
|
|
- this.headerWidth = rect.width;
|
|
368
|
|
- this.headerLeft = rect.left;
|
|
369
|
|
- console.log(`sticky-header: 窗口滚动锁定，目标宽度: ${rect.width}px, 左侧位置: ${rect.left}px, 目标元素: ${this.widthTarget || '默认'}`);
|
|
|
379
|
+ if (isLocked) {
|
|
|
380
|
+ const widthTarget = this.getAutoWidthTarget();
|
|
|
381
|
+ if (widthTarget) {
|
|
|
382
|
+ const rect = widthTarget.getBoundingClientRect();
|
|
|
383
|
+ this.headerWidth.set(rect.width);
|
|
|
384
|
+ this.headerLeft.set(rect.left);
|
|
|
385
|
+ console.log(`sticky-header: 窗口滚动锁定，使用自动宽度目标，宽度: ${rect.width}px, 左侧位置: ${rect.left}px`);
|
|
370
|
386
|
} else {
|
|
371
|
|
- // 回退：使用视口宽度减去实际侧边栏宽度
|
|
372
|
|
- const sidebarWidth = this.getSidebarWidth();
|
|
373
|
|
- this.headerWidth = `calc(100% - ${sidebarWidth}px)`;
|
|
374
|
|
- this.headerLeft = sidebarWidth;
|
|
375
|
|
- console.log(`sticky-header: 未找到宽度目标元素，使用回退宽度: ${this.headerWidth}, 侧边栏宽度: ${sidebarWidth}px`);
|
|
|
387
|
+ // 未找到合适容器，使用视口
|
|
|
388
|
+ this.headerWidth.set('100%');
|
|
|
389
|
+ this.headerLeft.set(0);
|
|
|
390
|
+ console.log(`sticky-header: 窗口滚动锁定，未找到宽度目标，使用视口宽度`);
|
|
376
|
391
|
}
|
|
377
|
392
|
} else {
|
|
378
|
|
- this.headerWidth = null;
|
|
379
|
|
- this.headerLeft = null;
|
|
|
393
|
+ this.headerWidth.set(null);
|
|
|
394
|
+ this.headerLeft.set(null);
|
|
380
|
395
|
}
|
|
381
|
396
|
});
|
|
382
|
397
|
}
|
|
383
|
398
|
|
|
384
|
|
- private checkInitialWindowScrollPosition() {
|
|
|
399
|
+ private checkInitialWindowScrollPosition() {
|
|
385
|
400
|
const scrollTop = window.scrollY || document.documentElement.scrollTop || 0;
|
|
386
|
401
|
this.lastScrollTop = scrollTop;
|
|
387
|
402
|
|
|
388
|
|
- this.isScrolled = scrollTop > this.scrollThreshold;
|
|
389
|
|
- this.isLocked = scrollTop > this.scrollThreshold;
|
|
390
|
|
- this.isCompact = scrollTop > this.compactThreshold;
|
|
391
|
|
-
|
|
392
|
|
- // 记录初始状态
|
|
393
|
|
- this.lastIsLocked = this.isLocked;
|
|
394
|
|
- this.lastIsCompact = this.isCompact;
|
|
395
|
|
-
|
|
396
|
|
- if (this.isLocked) {
|
|
397
|
|
- // 使用宽度目标元素计算宽度
|
|
398
|
|
- const widthTargetElement = this.getWidthTargetElement();
|
|
399
|
|
- if (widthTargetElement) {
|
|
400
|
|
- const rect = widthTargetElement.getBoundingClientRect();
|
|
401
|
|
- this.headerWidth = rect.width;
|
|
402
|
|
- this.headerLeft = rect.left;
|
|
403
|
|
- console.log(`sticky-header: 初始窗口滚动位置检查: scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}, 目标宽度: ${rect.width}px, 目标元素: ${this.widthTarget || '默认'}`);
|
|
|
403
|
+ const { ratio, height, isLocked, isCompact } = this.calculateCompression(scrollTop);
|
|
|
404
|
+ const isScrolled = ratio > 0;
|
|
|
405
|
+
|
|
|
406
|
+ this.currentHeight.set(height);
|
|
|
407
|
+ this.isScrolled.set(isScrolled);
|
|
|
408
|
+ this.isLocked.set(isLocked);
|
|
|
409
|
+ this.isCompact.set(isCompact);
|
|
|
410
|
+
|
|
|
411
|
+ if (isLocked) {
|
|
|
412
|
+ const widthTarget = this.getAutoWidthTarget();
|
|
|
413
|
+ if (widthTarget) {
|
|
|
414
|
+ const rect = widthTarget.getBoundingClientRect();
|
|
|
415
|
+ this.headerWidth.set(rect.width);
|
|
|
416
|
+ this.headerLeft.set(rect.left);
|
|
|
417
|
+ console.log(`sticky-header: 初始窗口滚动锁定，使用自动宽度目标，宽度: ${rect.width}px, 左侧位置: ${rect.left}px`);
|
|
404
|
418
|
} else {
|
|
405
|
|
- // 回退：使用视口宽度减去实际侧边栏宽度
|
|
406
|
|
- const sidebarWidth = this.getSidebarWidth();
|
|
407
|
|
- this.headerWidth = `calc(100% - ${sidebarWidth}px)`;
|
|
408
|
|
- this.headerLeft = sidebarWidth;
|
|
409
|
|
- console.log(`sticky-header: 初始窗口滚动位置检查: scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}, 使用回退宽度`);
|
|
|
419
|
+ this.headerWidth.set('100%');
|
|
|
420
|
+ this.headerLeft.set(0);
|
|
|
421
|
+ console.log(`sticky-header: 初始窗口滚动锁定，未找到宽度目标，使用视口宽度`);
|
|
410
|
422
|
}
|
|
411
|
|
- } else {
|
|
412
|
|
- this.headerWidth = null;
|
|
413
|
|
- this.headerLeft = null;
|
|
414
|
423
|
}
|
|
415
|
424
|
|
|
416
|
|
- console.log(`sticky-header: 初始窗口滚动位置检查完成: scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}, canScroll=${this.canScroll}`);
|
|
|
425
|
+ console.log(`sticky-header: 初始窗口滚动位置检查完成: scrollTop=${scrollTop}, ratio=${ratio.toFixed(2)}, height=${height.toFixed(0)}px, isLocked=${isLocked}, isCompact=${isCompact}`);
|
|
417
|
426
|
}
|
|
418
|
427
|
|
|
419
|
|
- private handleScroll(event: Event) {
|
|
420
|
|
- // 如果容器不可滚动，不处理滚动事件
|
|
421
|
|
- if (!this.canScroll) {
|
|
422
|
|
- console.log('sticky-header: 容器不可滚动，跳过处理');
|
|
423
|
|
- return;
|
|
424
|
|
- }
|
|
425
|
|
-
|
|
426
|
|
- // 使用requestAnimationFrame防抖，避免频繁更新
|
|
|
428
|
+ private handleScroll(event: Event) {
|
|
|
429
|
+ // 使用requestAnimationFrame防抖
|
|
427
|
430
|
if (this.scrollRafId) {
|
|
428
|
431
|
cancelAnimationFrame(this.scrollRafId);
|
|
429
|
432
|
}
|
|
|
@@ -436,80 +439,181 @@ export class StickyHeaderComponent implements AfterViewInit, OnDestroy {
|
|
436
|
439
|
|
|
437
|
440
|
// 检查滚动位置是否显著变化，避免微小滚动触发状态更新
|
|
438
|
441
|
const scrollDelta = Math.abs(scrollTop - this.lastScrollTop);
|
|
439
|
|
- if (scrollDelta < 1) { // 小于1像素的变化忽略
|
|
|
442
|
+ if (scrollDelta < 3) {
|
|
440
|
443
|
return;
|
|
441
|
444
|
}
|
|
442
|
445
|
|
|
443
|
446
|
this.lastScrollTop = scrollTop;
|
|
444
|
447
|
|
|
445
|
|
- // 计算新状态
|
|
446
|
|
- const newIsScrolled = scrollTop > this.scrollThreshold;
|
|
447
|
|
- const newIsLocked = scrollTop > this.scrollThreshold;
|
|
448
|
|
- const newIsCompact = scrollTop > this.compactThreshold;
|
|
|
448
|
+ // 计算压缩状态
|
|
|
449
|
+ const { ratio, height, isLocked, isCompact } = this.calculateCompression(scrollTop);
|
|
|
450
|
+ const isScrolled = ratio > 0;
|
|
449
|
451
|
|
|
450
|
|
- // 检查状态是否真正变化，避免不必要更新
|
|
|
452
|
+ // 检查状态或高度是否真正变化，避免不必要更新
|
|
|
453
|
+ const currentHeightValue = this.currentHeight();
|
|
|
454
|
+ const heightChanged = currentHeightValue === null || Math.abs(height - currentHeightValue) > 1;
|
|
451
|
455
|
const stateChanged =
|
|
452
|
|
- newIsLocked !== this.lastIsLocked ||
|
|
453
|
|
- newIsCompact !== this.lastIsCompact ||
|
|
454
|
|
- newIsScrolled !== this.isScrolled;
|
|
|
456
|
+ isLocked !== this.lastIsLocked ||
|
|
|
457
|
+ isCompact !== this.lastIsCompact ||
|
|
|
458
|
+ isScrolled !== this.isScrolled();
|
|
455
|
459
|
|
|
456
|
|
- if (!stateChanged) {
|
|
457
|
|
- console.log(`sticky-header: 容器滚动位置变化但状态未变，scrollTop=${scrollTop}, isLocked=${newIsLocked}, isCompact=${newIsCompact}`);
|
|
|
460
|
+ if (!stateChanged && !heightChanged) {
|
|
|
461
|
+ console.log(`sticky-header: 容器滚动位置变化但状态和高度未变，scrollTop=${scrollTop}, ratio=${ratio.toFixed(2)}, isLocked=${isLocked}, isCompact=${isCompact}, height=${height.toFixed(0)}px`);
|
|
458
|
462
|
return;
|
|
459
|
463
|
}
|
|
460
|
464
|
|
|
461
|
|
- this.lastIsLocked = newIsLocked;
|
|
462
|
|
- this.lastIsCompact = newIsCompact;
|
|
|
465
|
+ this.lastIsLocked = isLocked;
|
|
|
466
|
+ this.lastIsCompact = isCompact;
|
|
463
|
467
|
|
|
464
|
|
- // 更新滚动状态
|
|
465
|
|
- this.isScrolled = newIsScrolled;
|
|
466
|
|
- this.isLocked = newIsLocked;
|
|
467
|
|
- this.isCompact = newIsCompact;
|
|
|
468
|
+ // 更新状态
|
|
|
469
|
+ this.currentHeight.set(height);
|
|
|
470
|
+ this.isScrolled.set(isScrolled);
|
|
|
471
|
+ this.isLocked.set(isLocked);
|
|
|
472
|
+ this.isCompact.set(isCompact);
|
|
468
|
473
|
|
|
469
|
|
- console.log(`sticky-header: 容器滚动状态更新，scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}`);
|
|
|
474
|
+ console.log(`sticky-header: 容器滚动状态更新，scrollTop=${scrollTop}, ratio=${ratio.toFixed(2)}, height=${height.toFixed(0)}px, isLocked=${isLocked}, isCompact=${isCompact}`);
|
|
470
|
475
|
|
|
471
|
476
|
// 设置宽度匹配容器
|
|
472
|
|
- if (this.isLocked) {
|
|
473
|
|
- // 优先使用宽度目标元素，否则使用滚动容器
|
|
474
|
|
- const widthTargetElement = this.getWidthTargetElement();
|
|
475
|
|
- const targetElement = widthTargetElement || container;
|
|
476
|
|
- const rect = targetElement.getBoundingClientRect();
|
|
477
|
|
- this.headerWidth = rect.width;
|
|
478
|
|
- this.headerLeft = rect.left;
|
|
479
|
|
- console.log(`sticky-header: 容器滚动锁定，目标宽度: ${rect.width}px, 左侧位置: ${rect.left}px, 目标元素: ${widthTargetElement ? (this.widthTarget || '默认') : '滚动容器'}`);
|
|
|
477
|
+ if (isLocked) {
|
|
|
478
|
+ // 容器滚动模式优先使用滚动容器作为宽度目标
|
|
|
479
|
+ const widthTarget = this.getAutoWidthTarget();
|
|
|
480
|
+ if (widthTarget) {
|
|
|
481
|
+ const rect = widthTarget.getBoundingClientRect();
|
|
|
482
|
+ this.headerWidth.set(rect.width);
|
|
|
483
|
+ this.headerLeft.set(rect.left);
|
|
|
484
|
+ console.log(`sticky-header: 容器滚动锁定，使用自动宽度目标，宽度: ${rect.width}px, 左侧位置: ${rect.left}px`);
|
|
|
485
|
+ } else {
|
|
|
486
|
+ // 未找到合适容器，使用滚动容器本身
|
|
|
487
|
+ const rect = container.getBoundingClientRect();
|
|
|
488
|
+ this.headerWidth.set(rect.width);
|
|
|
489
|
+ this.headerLeft.set(rect.left);
|
|
|
490
|
+ console.log(`sticky-header: 容器滚动锁定，使用滚动容器宽度，宽度: ${rect.width}px, 左侧位置: ${rect.left}px`);
|
|
|
491
|
+ }
|
|
480
|
492
|
} else {
|
|
481
|
|
- this.headerWidth = null;
|
|
482
|
|
- this.headerLeft = null;
|
|
|
493
|
+ this.headerWidth.set(null);
|
|
|
494
|
+ this.headerLeft.set(null);
|
|
483
|
495
|
}
|
|
484
|
496
|
});
|
|
485
|
497
|
}
|
|
486
|
498
|
|
|
487
|
|
- private checkInitialScrollPosition(container: HTMLElement) {
|
|
|
499
|
+ private checkInitialScrollPosition(container: HTMLElement) {
|
|
488
|
500
|
const scrollTop = container.scrollTop || 0;
|
|
489
|
501
|
this.lastScrollTop = scrollTop;
|
|
490
|
502
|
|
|
491
|
|
- this.isScrolled = scrollTop > this.scrollThreshold;
|
|
492
|
|
- this.isLocked = scrollTop > this.scrollThreshold;
|
|
493
|
|
- this.isCompact = scrollTop > this.compactThreshold;
|
|
494
|
|
-
|
|
495
|
|
- // 记录初始状态
|
|
496
|
|
- this.lastIsLocked = this.isLocked;
|
|
497
|
|
- this.lastIsCompact = this.isCompact;
|
|
498
|
|
-
|
|
499
|
|
- if (this.isLocked) {
|
|
500
|
|
- // 优先使用宽度目标元素，否则使用滚动容器
|
|
501
|
|
- const widthTargetElement = this.getWidthTargetElement();
|
|
502
|
|
- const targetElement = widthTargetElement || container;
|
|
503
|
|
- const rect = targetElement.getBoundingClientRect();
|
|
504
|
|
- this.headerWidth = rect.width;
|
|
505
|
|
- this.headerLeft = rect.left;
|
|
506
|
|
- console.log(`sticky-header: 初始容器滚动位置检查: scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}, 目标宽度: ${rect.width}px, 目标元素: ${widthTargetElement ? (this.widthTarget || '默认') : '滚动容器'}`);
|
|
|
503
|
+ const { ratio, height, isLocked, isCompact } = this.calculateCompression(scrollTop);
|
|
|
504
|
+ const isScrolled = ratio > 0;
|
|
|
505
|
+
|
|
|
506
|
+ this.currentHeight.set(height);
|
|
|
507
|
+ this.isScrolled.set(isScrolled);
|
|
|
508
|
+ this.isLocked.set(isLocked);
|
|
|
509
|
+ this.isCompact.set(isCompact);
|
|
|
510
|
+
|
|
|
511
|
+ if (isLocked) {
|
|
|
512
|
+ const widthTarget = this.getAutoWidthTarget();
|
|
|
513
|
+ if (widthTarget) {
|
|
|
514
|
+ const rect = widthTarget.getBoundingClientRect();
|
|
|
515
|
+ this.headerWidth.set(rect.width);
|
|
|
516
|
+ this.headerLeft.set(rect.left);
|
|
|
517
|
+ console.log(`sticky-header: 初始容器滚动锁定，使用自动宽度目标，宽度: ${rect.width}px, 左侧位置: ${rect.left}px`);
|
|
|
518
|
+ } else {
|
|
|
519
|
+ const rect = container.getBoundingClientRect();
|
|
|
520
|
+ this.headerWidth.set(rect.width);
|
|
|
521
|
+ this.headerLeft.set(rect.left);
|
|
|
522
|
+ console.log(`sticky-header: 初始容器滚动锁定，使用滚动容器宽度，宽度: ${rect.width}px, 左侧位置: ${rect.left}px`);
|
|
|
523
|
+ }
|
|
|
524
|
+ }
|
|
|
525
|
+
|
|
|
526
|
+ console.log(`sticky-header: 初始容器滚动位置检查完成: scrollTop=${scrollTop}, ratio=${ratio.toFixed(2)}, height=${height.toFixed(0)}px, isLocked=${isLocked}, isCompact=${isCompact}`);
|
|
|
527
|
+ }
|
|
|
528
|
+
|
|
|
529
|
+ /**
|
|
|
530
|
+ * 智能压缩计算 - 基于备份文件逻辑，自动计算最大滚动距离
|
|
|
531
|
+ * @param scrollTop 当前滚动位置
|
|
|
532
|
+ * @returns 压缩比例、高度和状态
|
|
|
533
|
+ */
|
|
|
534
|
+ private calculateCompression(scrollTop: number): {
|
|
|
535
|
+ ratio: number; // 压缩比例 0-1
|
|
|
536
|
+ height: number; // 当前动态高度
|
|
|
537
|
+ isLocked: boolean; // 是否锁定
|
|
|
538
|
+ isCompact: boolean; // 是否缩小
|
|
|
539
|
+ } {
|
|
|
540
|
+ // 如果尚未缓存尺寸或高度无效，返回默认值
|
|
|
541
|
+ if (!this.maxHeight || this.maxHeight <= this.minHeight) {
|
|
|
542
|
+ console.log(`sticky-header: 压缩计算 - 未缓存尺寸或高度无效，maxHeight=${this.maxHeight}, minHeight=${this.minHeight}`);
|
|
|
543
|
+ return {
|
|
|
544
|
+ ratio: 0,
|
|
|
545
|
+ height: this.maxHeight || 0,
|
|
|
546
|
+ isLocked: false,
|
|
|
547
|
+ isCompact: false
|
|
|
548
|
+ };
|
|
|
549
|
+ }
|
|
|
550
|
+
|
|
|
551
|
+ // 计算有效滚动距离
|
|
|
552
|
+ const effectiveScroll = Math.max(scrollTop - this.initialTop, 0);
|
|
|
553
|
+ const availableScroll = this.maxHeight - this.minHeight;
|
|
|
554
|
+
|
|
|
555
|
+ // 自动计算最大可能的滚动距离
|
|
|
556
|
+ let maxPossibleScroll = availableScroll; // 默认值
|
|
|
557
|
+
|
|
|
558
|
+ if (this.scrollContainer === 'window') {
|
|
|
559
|
+ // 窗口滚动：使用文档高度 - 视口高度
|
|
|
560
|
+ const scrollHeight = document.body.scrollHeight || document.documentElement.scrollHeight || 0;
|
|
|
561
|
+ const clientHeight = window.innerHeight || document.documentElement.clientHeight || 0;
|
|
|
562
|
+ maxPossibleScroll = Math.max(scrollHeight - clientHeight, 0);
|
|
507
|
563
|
} else {
|
|
508
|
|
- this.headerWidth = null;
|
|
509
|
|
- this.headerLeft = null;
|
|
|
564
|
+ // 容器滚动：使用容器实际可滚动距离
|
|
|
565
|
+ const container = this.getScrollContainer();
|
|
|
566
|
+ if (container) {
|
|
|
567
|
+ maxPossibleScroll = Math.max(container.scrollHeight - container.clientHeight, 0);
|
|
|
568
|
+ }
|
|
510
|
569
|
}
|
|
511
|
570
|
|
|
512
|
|
- console.log(`sticky-header: 初始容器滚动位置检查完成: scrollTop=${scrollTop}, isLocked=${this.isLocked}, isCompact=${this.isCompact}, canScroll=${this.canScroll}`);
|
|
|
571
|
+ // 如果容器实际可滚动距离为0（内容未完全加载或高度不足），使用虚拟高度确保压缩计算能进行
|
|
|
572
|
+ if (maxPossibleScroll <= 0) {
|
|
|
573
|
+ const virtualHeight = typeof window !== 'undefined' ? window.innerHeight + 200 : availableScroll;
|
|
|
574
|
+ maxPossibleScroll = Math.max(virtualHeight, availableScroll);
|
|
|
575
|
+ console.log(`sticky-header: 使用虚拟高度计算可滚动距离: ${virtualHeight}px, maxPossibleScroll=${maxPossibleScroll}`);
|
|
|
576
|
+ }
|
|
|
577
|
+
|
|
|
578
|
+ // 确定实际可用的压缩距离：取理论压缩距离和实际最大滚动距离的较小值
|
|
|
579
|
+ const compressionDistance = Math.min(availableScroll, maxPossibleScroll);
|
|
|
580
|
+
|
|
|
581
|
+ console.log(`sticky-header: 压缩计算参数:
|
|
|
582
|
+ scrollTop=${scrollTop},
|
|
|
583
|
+ initialTop=${this.initialTop},
|
|
|
584
|
+ effectiveScroll=${effectiveScroll},
|
|
|
585
|
+ maxHeight=${this.maxHeight},
|
|
|
586
|
+ minHeight=${this.minHeight},
|
|
|
587
|
+ availableScroll=${availableScroll},
|
|
|
588
|
+ maxPossibleScroll=${maxPossibleScroll},
|
|
|
589
|
+ compressionDistance=${compressionDistance}`);
|
|
|
590
|
+
|
|
|
591
|
+ // 避免除零错误
|
|
|
592
|
+ if (compressionDistance <= 0) {
|
|
|
593
|
+ console.log(`sticky-header: 压缩计算 - compressionDistance<=0 (${compressionDistance})，跳过计算`);
|
|
|
594
|
+ return {
|
|
|
595
|
+ ratio: 0,
|
|
|
596
|
+ height: this.maxHeight,
|
|
|
597
|
+ isLocked: false,
|
|
|
598
|
+ isCompact: false
|
|
|
599
|
+ };
|
|
|
600
|
+ }
|
|
|
601
|
+
|
|
|
602
|
+ // 线性比例计算：滚动距离 / 实际压缩距离
|
|
|
603
|
+ const ratio = Math.min(effectiveScroll / compressionDistance, 1);
|
|
|
604
|
+ const currentHeight = this.maxHeight - (ratio * availableScroll);
|
|
|
605
|
+
|
|
|
606
|
+ console.log(`sticky-header: 压缩计算结果:
|
|
|
607
|
+ ratio=${ratio.toFixed(3)},
|
|
|
608
|
+ currentHeight=${currentHeight.toFixed(0)}px,
|
|
|
609
|
+ 需要滚动${compressionDistance * 0.5}px才能进入compact状态`);
|
|
|
610
|
+
|
|
|
611
|
+ return {
|
|
|
612
|
+ ratio,
|
|
|
613
|
+ height: currentHeight,
|
|
|
614
|
+ isLocked: ratio > 0, // 开始滚动即锁定
|
|
|
615
|
+ isCompact: ratio > 0.5 // 压缩超过50%视为缩小状态
|
|
|
616
|
+ };
|
|
513
|
617
|
}
|
|
514
|
618
|
|
|
515
|
619
|
private cleanupScrollListener() {
|
