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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | 8x 8x 27x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 20x 7x 5x 7x 7x 7x 7x 7x 7x 23x 23x 19x 13x 23x 23x 7x 8x | import {
AfterViewInit,
ChangeDetectorRef,
Component,
ContentChildren,
ElementRef,
HostBinding,
HostListener,
QueryList
} from '@angular/core';
import { ReactiveFormsModule } from '@angular/forms';
import { RouterLink } from '@angular/router';
import { defer } from 'lodash-es';
import { ConfigService } from '../../service/config.service';
import { memo, MemoCache } from '../../util/memo';
import { SettingsComponent } from '../settings/settings.component';
@Component({
selector: 'app-tabs',
templateUrl: './tabs.component.html',
styleUrl: './tabs.component.scss',
host: { 'class': 'tabs' },
imports: [ReactiveFormsModule, SettingsComponent]
})
export class TabsComponent implements AfterViewInit {
@ContentChildren(RouterLink)
routerLinks!: QueryList<RouterLink>;
@ContentChildren(RouterLink, { read: ElementRef })
anchors!: QueryList<ElementRef>;
options: string[] = [];
map = new Map<string, number>();
hidden = 0;
@HostBinding('class.measuring')
measuring = true;
private resizeObserver = window.ResizeObserver && new ResizeObserver(() => this.onResize()) || undefined;
constructor(
private config: ConfigService,
private el: ElementRef<HTMLElement>,
private cd: ChangeDetectorRef,
) { }
ngAfterViewInit() {
this.updateTabs();
this.anchors.changes.subscribe(value => {
this.measuring = true;
this.updateTabs();
});
defer(() => this.resizeObserver?.observe(this.el.nativeElement!.parentElement!));
}
@HostBinding('class.floating-tabs')
get floatingTabs() {
return this.config.mini || this.hidden > 0 && this.hidden === this.options.length;
}
@HostListener('window:resize')
onResize() {
if (!this.options.length) return;
defer(() => {
if (!document.body.classList.contains('fullscreen')) {
this.measureVisible();
}
});
}
measureVisible() {
if (!this.options.length) return;
this.hidden = this.options.length - this.visible;
this.hideTabs();
}
updateTabs() {
MemoCache.clear(this);
this.hidden = 0;
this.options = [];
this.map.clear();
const tabs = this.anchors.toArray();
for (const t of tabs) {
const el = t.nativeElement as HTMLAnchorElement;
if (el.tagName !== 'A') continue;
if (el.classList.contains('logo')) continue;
const value = el.title || el.innerText;
this.options.push(value);
this.map.set(value, tabs.indexOf(t));
}
defer(() => this.onResize());
}
hideTabs() {
const tabs = this.anchors.toArray();
let i = this.options.length - 1;
for (const t of tabs) {
const el = t.nativeElement as HTMLAnchorElement;
if (el.tagName !== 'A') continue;
if (el.classList.contains('logo')) continue;
if (el.classList.contains('current-tab')) {
el.style.display = 'inline-block';
} else {
el.style.display = i > this.hidden ? 'inline-block' : 'none';
i--;
}
}
this.measuring = false;
this.cd.markForCheck();
}
@memo
get tabWidths() {
const result: number[] = [];
const tabs = this.anchors.toArray();
for (const t of tabs) {
const el = t.nativeElement as HTMLAnchorElement;
if (el.tagName !== 'A') continue;
if (el.classList.contains('logo')) continue;
result.push(el.offsetWidth + 8.5);
}
return result;
}
get currentTabWidth() {
const el = this.el.nativeElement;
for (let i = 0; i < el.children.length; i++) {
const e = el.children[i] as HTMLElement;
if (!e.classList.contains('current-tab')) continue;
return e.offsetWidth + 8.5;
}
return 0;
}
/**
* Widths of permanent children including the overflow dropdown.
*/
get childWidths() {
const el = this.el.nativeElement;
const result: number[] = [];
let mobileSelect = false;
for (let i = 0; i < el.children.length; i++) {
const e = el.children[i] as HTMLElement;
if (e.tagName === 'A' && !e.classList.contains('logo')) continue;
if (this.config.mobile) {
if (e.tagName === 'H5') continue;
if (e.classList.contains('logo')) continue;
}
if (e.classList.contains('mobile-tab-select')) mobileSelect = true;
result.push(e.offsetWidth + (e.classList.contains('settings') ? 0 : 8));
}
if (!mobileSelect) {
result.push(52);
}
return result;
}
/**
* Number of visible tabs, including the current tab.
*/
get visible() {
const current = this.currentTabWidth;
if (!current) return this.options.length;
if (this.config.mini) return 0;
const el = this.el.nativeElement;
const width = el.offsetWidth - 2;
let result = 1;
let childWidth = current + this.childWidths.reduce((a, b) => a + b);
if (childWidth > width) return 0;
let skipped = false;
for (const w of this.tabWidths) {
if (!skipped && w === current) {
skipped = true;
continue;
}
childWidth += w;
if (childWidth + current < width) {
result++;
} else {
return result;
}
}
return this.options.length;
}
nav(select: HTMLSelectElement) {
if (select.value && this.map.has(select.value)) {
this.routerLinks.get(this.map.get(select.value)!)?.onClick(0, false, false, false, false);
}
select.selectedIndex = 0;
this.measureVisible();
}
}
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