Restructure

src-angular/app/app-routing.module.ts

@@ -0,0 +1,24 @@
+import { NgModule } from '@angular/core'
+import { RouteReuseStrategy, RouterModule, Routes } from '@angular/router'
+
+import { BrowseComponent } from './components/browse/browse.component'
+import { SettingsComponent } from './components/settings/settings.component'
+import { TabPersistStrategy } from './core/tab-persist.strategy'
+
+// TODO: replace these with the correct components
+const routes: Routes = [
+	{ path: 'browse', component: BrowseComponent, data: { shouldReuse: true } },
+	{ path: 'library', redirectTo: '/browse' },
+	{ path: 'settings', component: SettingsComponent, data: { shouldReuse: true } },
+	{ path: 'about', redirectTo: '/browse' },
+	{ path: '**', redirectTo: '/browse' },
+]
+
+@NgModule({
+	imports: [RouterModule.forRoot(routes)],
+	exports: [RouterModule],
+	providers: [
+		{ provide: RouteReuseStrategy, useClass: TabPersistStrategy },
+	],
+})
+export class AppRoutingModule { }

src-angular/app/app.component.html

@@ -0,0 +1,4 @@
+<div *ngIf="settingsLoaded" style="display: flex; flex-direction: column; height: 100%">
+	<app-toolbar></app-toolbar>
+	<router-outlet></router-outlet>
+</div>

src-angular/app/app.component.ts

@@ -0,0 +1,18 @@
+import { Component } from '@angular/core'
+
+import { SettingsService } from './core/services/settings.service'
+
+@Component({
+	selector: 'app-root',
+	templateUrl: './app.component.html',
+	styles: [],
+})
+export class AppComponent {
+
+	settingsLoaded = false
+
+	constructor(private settingsService: SettingsService) {
+		// Ensure settings are loaded before rendering the application
+		settingsService.loadSettings().then(() => this.settingsLoaded = true)
+	}
+}

src-angular/app/app.module.ts

@@ -0,0 +1,41 @@
+import { NgModule } from '@angular/core'
+import { FormsModule } from '@angular/forms'
+import { BrowserModule } from '@angular/platform-browser'
+
+import { AppRoutingModule } from './app-routing.module'
+import { AppComponent } from './app.component'
+import { BrowseComponent } from './components/browse/browse.component'
+import { ChartSidebarComponent } from './components/browse/chart-sidebar/chart-sidebar.component'
+import { ResultTableRowComponent } from './components/browse/result-table/result-table-row/result-table-row.component'
+import { ResultTableComponent } from './components/browse/result-table/result-table.component'
+import { SearchBarComponent } from './components/browse/search-bar/search-bar.component'
+import { DownloadsModalComponent } from './components/browse/status-bar/downloads-modal/downloads-modal.component'
+import { StatusBarComponent } from './components/browse/status-bar/status-bar.component'
+import { SettingsComponent } from './components/settings/settings.component'
+import { ToolbarComponent } from './components/toolbar/toolbar.component'
+import { CheckboxDirective } from './core/directives/checkbox.directive'
+import { ProgressBarDirective } from './core/directives/progress-bar.directive'
+
+@NgModule({
+	declarations: [
+		AppComponent,
+		ToolbarComponent,
+		BrowseComponent,
+		SearchBarComponent,
+		StatusBarComponent,
+		ResultTableComponent,
+		ChartSidebarComponent,
+		ResultTableRowComponent,
+		DownloadsModalComponent,
+		ProgressBarDirective,
+		CheckboxDirective,
+		SettingsComponent,
+	],
+	imports: [
+		BrowserModule,
+		AppRoutingModule,
+		FormsModule,
+	],
+	bootstrap: [AppComponent],
+})
+export class AppModule { }

src-angular/app/components/browse/browse.component.html

@@ -0,0 +1,12 @@
+<app-search-bar></app-search-bar>
+<div class="ui celled two column grid">
+	<div id="table-row" class="row">
+		<div id="table-column" class="column twelve wide">
+			<app-result-table #resultTable (rowClicked)="chartSidebar.onRowClicked($event)"></app-result-table>
+		</div>
+		<div id="sidebar-column" class="column four wide">
+			<app-chart-sidebar #chartSidebar></app-chart-sidebar>
+		</div>
+	</div>
+</div>
+<app-status-bar #statusBar></app-status-bar>

src-angular/app/components/browse/browse.component.scss

@@ -0,0 +1,27 @@
+:host {
+  display: contents;
+}
+
+.two.column.grid {
+  display: contents;
+  margin: 0;
+}
+
+#table-row {
+  flex-grow: 1;
+  min-height: 0;
+  flex-wrap: nowrap;
+  box-shadow: none;
+}
+
+#table-column {
+  overflow-y: auto;
+  padding: 0;
+}
+
+#sidebar-column {
+  display: flex;
+  min-width: 175px;
+  overflow: hidden;
+  padding: 0;
+}

src-angular/app/components/browse/browse.component.ts

@@ -0,0 +1,35 @@
+import { AfterViewInit, Component, ViewChild } from '@angular/core'
+
+import { SearchService } from 'src/app/core/services/search.service'
+import { ChartSidebarComponent } from './chart-sidebar/chart-sidebar.component'
+import { ResultTableComponent } from './result-table/result-table.component'
+import { StatusBarComponent } from './status-bar/status-bar.component'
+
+@Component({
+	selector: 'app-browse',
+	templateUrl: './browse.component.html',
+	styleUrls: ['./browse.component.scss'],
+})
+export class BrowseComponent implements AfterViewInit {
+
+	@ViewChild('resultTable', { static: true }) resultTable: ResultTableComponent
+	@ViewChild('chartSidebar', { static: true }) chartSidebar: ChartSidebarComponent
+	@ViewChild('statusBar', { static: true }) statusBar: StatusBarComponent
+
+	constructor(private searchService: SearchService) { }
+
+	ngAfterViewInit() {
+		const $tableColumn = $('#table-column')
+		$tableColumn.on('scroll', () => {
+			const pos = $tableColumn[0].scrollTop + $tableColumn[0].offsetHeight
+			const max = $tableColumn[0].scrollHeight
+			if (pos >= max - 5) {
+				this.searchService.updateScroll()
+			}
+		})
+
+		this.searchService.onNewSearch(() => {
+			$tableColumn.scrollTop(0)
+		})
+	}
+}

src-angular/app/components/browse/chart-sidebar/chart-sidebar.component.html

@@ -0,0 +1,46 @@
+<div id="sidebarCard" *ngIf="selectedVersion" class="ui fluid card">
+	<div class="ui placeholder" [ngClass]="{ placeholder: albumArtSrc === '', inverted: settingsService.theme === 'Dark' }">
+		<img *ngIf="albumArtSrc !== null" class="ui square image" [src]="albumArtSrc" />
+	</div>
+	<div *ngIf="charts.length > 1" id="chartDropdown" class="ui fluid right labeled scrolling icon dropdown button">
+		<input type="hidden" name="Chart" />
+		<i id="chartDropdownIcon" class="dropdown icon"></i>
+		<div class="default text"></div>
+		<div id="chartDropdownMenu" class="menu"></div>
+	</div>
+	<div id="textPanel" class="content">
+		<span class="header">{{ selectedVersion.chartName }}</span>
+		<div class="description">
+			<div *ngIf="songResult.album === null"><b>Album:</b> {{ selectedVersion.album }} ({{ selectedVersion.year }})</div>
+			<div *ngIf="songResult.album !== null"><b>Year:</b> {{ selectedVersion.year }}</div>
+			<div *ngIf="songResult.genre === null"><b>Genre:</b> {{ selectedVersion.genre }}</div>
+			<div>
+				<b>{{ charterPlural }}</b> {{ selectedVersion.charters }}
+			</div>
+			<div *ngIf="selectedVersion.tags"><b>Tags:</b> {{ selectedVersion.tags }}</div>
+			<div><b>Audio Length:</b> {{ songLength }}</div>
+			<div class="ui divider"></div>
+			<div class="ui horizontal list">
+				<div *ngFor="let difficulty of difficultiesList" class="item">
+					<img class="ui avatar image" src="assets/images/instruments/{{ difficulty.instrument }}" />
+					<div class="content">
+						<div class="header">Diff: {{ difficulty.diffNumber }}</div>
+						{{ difficulty.chartedDifficulties }}
+					</div>
+				</div>
+			</div>
+			<div id="sourceLinks">
+				<a id="sourceLink" (click)="onSourceLinkClicked()">{{ selectedVersion.driveData.source.sourceName }}</a>
+				<button *ngIf="shownFolderButton()" id="folderButton" class="mini ui icon button" (click)="onFolderButtonClicked()">
+					<i class="folder open outline icon"></i>
+				</button>
+			</div>
+		</div>
+	</div>
+	<div id="downloadButtons" class="ui positive buttons">
+		<div id="downloadButton" class="ui button" (click)="onDownloadClicked()">{{ downloadButtonText }}</div>
+		<div *ngIf="getSelectedChartVersions().length > 1" id="versionDropdown" class="ui floating dropdown icon button">
+			<i class="dropdown icon"></i>
+		</div>
+	</div>
+</div>

src-angular/app/components/browse/chart-sidebar/chart-sidebar.component.scss

@@ -0,0 +1,64 @@
+:host {
+  display: contents;
+}
+
+.ui.card {
+  display: flex;
+  flex-direction: column;
+  border-radius: 0px;
+}
+
+.ui.placeholder {
+  border-radius: 0px !important;
+}
+
+#textPanel {
+  flex-grow: 1;
+  overflow-y: auto;
+}
+
+#versionDropdown, #folderButton {
+  max-width: min-content;
+}
+
+#chartDropdown {
+  min-height: min-content;
+  margin: 0px;
+}
+
+::ng-deep #chartDropdownMenu > div.item {
+  white-space: normal;
+  word-break: break-word;
+}
+
+#sourceLinks {
+  display: flex;
+}
+
+#sourceLink {
+  align-self: center;
+  flex-grow: 1;
+}
+
+#chartDropdownIcon, #versionDropdown {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+}
+
+.ui.horizontal.list>.item {
+  margin-right: 12px;
+}
+
+.ui.divider {
+  margin: 4px 0;
+}
+
+#downloadButton {
+  width: min-content;
+  margin: 0px 1px 1px 1px;
+}
+
+#versionDropdown {
+  margin: 0px 1px 1px -3px;
+}

src-angular/app/components/browse/chart-sidebar/chart-sidebar.component.ts

@@ -0,0 +1,288 @@
+import { Component, OnInit } from '@angular/core'
+import { DomSanitizer, SafeUrl } from '@angular/platform-browser'
+
+import { SearchService } from 'src/app/core/services/search.service'
+import { SettingsService } from 'src/app/core/services/settings.service'
+import { groupBy } from 'src/electron/shared/UtilFunctions'
+import { SongResult } from '../../../../electron/shared/interfaces/search.interface'
+import { ChartedDifficulty, getInstrumentIcon, Instrument, VersionResult } from '../../../../electron/shared/interfaces/songDetails.interface'
+import { AlbumArtService } from '../../../core/services/album-art.service'
+import { DownloadService } from '../../../core/services/download.service'
+import { ElectronService } from '../../../core/services/electron.service'
+
+interface Difficulty {
+	instrument: string
+	diffNumber: string
+	chartedDifficulties: string
+}
+
+@Component({
+	selector: 'app-chart-sidebar',
+	templateUrl: './chart-sidebar.component.html',
+	styleUrls: ['./chart-sidebar.component.scss'],
+})
+export class ChartSidebarComponent implements OnInit {
+
+	songResult: SongResult
+	selectedVersion: VersionResult
+	charts: VersionResult[][]
+
+	albumArtSrc: SafeUrl = ''
+	charterPlural: string
+	songLength: string
+	difficultiesList: Difficulty[]
+	downloadButtonText: string
+
+	constructor(
+		private electronService: ElectronService,
+		private albumArtService: AlbumArtService,
+		private downloadService: DownloadService,
+		private searchService: SearchService,
+		private sanitizer: DomSanitizer,
+		public settingsService: SettingsService
+	) { }
+
+	ngOnInit() {
+		this.searchService.onNewSearch(() => {
+			this.selectVersion(undefined)
+			this.songResult = undefined
+		})
+	}
+
+	/**
+	 * Displays the information for the selected song.
+	 */
+	async onRowClicked(result: SongResult) {
+		if (this.songResult == undefined || result.id != this.songResult.id) { // Clicking the same row again will not reload
+			this.songResult = result
+			const albumArt = this.albumArtService.getImage(result.id)
+			const results = await this.electronService.invoke('song-details', result.id)
+			this.charts = groupBy(results, 'chartID').sort((v1, v2) => v1[0].chartName.length - v2[0].chartName.length)
+			this.sortCharts()
+			await this.selectChart(this.charts[0][0].chartID)
+			this.initChartDropdown()
+
+			this.updateAlbumArtSrc(await albumArt)
+		}
+	}
+
+	/**
+	 * Sorts `this.charts` and its subarrays in the correct order.
+	 * The chart dropdown should display in a random order, but verified charters are prioritized.
+	 * The version dropdown should be ordered by lastModified date.
+	 * (but prefer the non-pack version if it's only a few days older)
+	 */
+	private sortCharts() {
+		for (const chart of this.charts) {
+			// TODO: sort by verified charter
+			this.searchService.sortChart(chart)
+		}
+	}
+
+	/**
+	 * Updates the sidebar to display the album art.
+	 */
+	updateAlbumArtSrc(albumArtBase64String?: string) {
+		if (albumArtBase64String) {
+			this.albumArtSrc = this.sanitizer.bypassSecurityTrustUrl('data:image/jpg;base64,' + albumArtBase64String)
+		} else {
+			this.albumArtSrc = null
+		}
+	}
+
+	/**
+	 * Initializes the chart dropdown from `this.charts` (or removes it if there's only one chart).
+	 */
+	private initChartDropdown() {
+		const values = this.charts.map(chart => {
+			const version = chart[0]
+			return {
+				value: version.chartID,
+				text: version.chartName,
+				name: `${version.chartName} <b>[${version.charters}]</b>`,
+			}
+		})
+		const $chartDropdown = $('#chartDropdown')
+		$chartDropdown.dropdown('setup menu', { values })
+		$chartDropdown.dropdown('setting', 'onChange', (chartID: number) => this.selectChart(chartID))
+		$chartDropdown.dropdown('set selected', values[0].value)
+	}
+
+	private async selectChart(chartID: number) {
+		const chart = this.charts.find(chart => chart[0].chartID == chartID)
+		await this.selectVersion(chart[0])
+		this.initVersionDropdown()
+	}
+
+	/**
+	 * Updates the sidebar to display the metadata for `selectedVersion`.
+	 */
+	async selectVersion(selectedVersion: VersionResult) {
+		this.selectedVersion = selectedVersion
+		await new Promise<void>(resolve => setTimeout(() => resolve(), 0)) // Wait for *ngIf to update DOM
+
+		if (this.selectedVersion != undefined) {
+			this.updateCharterPlural()
+			this.updateSongLength()
+			this.updateDifficultiesList()
+			this.updateDownloadButtonText()
+		}
+	}
+
+	/**
+	 * Chooses to display 'Charter:' or 'Charters:'.
+	 */
+	private updateCharterPlural() {
+		this.charterPlural = this.selectedVersion.charterIDs.split('&').length == 1 ? 'Charter:' : 'Charters:'
+	}
+
+	/**
+	 * Converts `this.selectedVersion.chartMetadata.length` into a readable duration.
+	 */
+	private updateSongLength() {
+		let seconds = this.selectedVersion.songLength
+		if (seconds < 60) { this.songLength = `${seconds} second${seconds == 1 ? '' : 's'}`; return }
+		let minutes = Math.floor(seconds / 60)
+		let hours = 0
+		while (minutes > 59) {
+			hours++
+			minutes -= 60
+		}
+		seconds = Math.floor(seconds % 60)
+		this.songLength = `${hours == 0 ? '' : hours + ':'}${minutes == 0 ? '' : minutes + ':'}${seconds < 10 ? '0' + seconds : seconds}`
+	}
+
+	/**
+	 * Updates `dfficultiesList` with the difficulty information for the selected version.
+	 */
+	private updateDifficultiesList() {
+		const instruments = Object.keys(this.selectedVersion.chartData.noteCounts) as Instrument[]
+		this.difficultiesList = []
+		for (const instrument of instruments) {
+			if (instrument != 'undefined') {
+				this.difficultiesList.push({
+					instrument: getInstrumentIcon(instrument),
+					diffNumber: this.getDiffNumber(instrument),
+					chartedDifficulties: this.getChartedDifficultiesText(instrument),
+				})
+			}
+		}
+	}
+
+	/**
+	 * @returns a string describing the difficulty number in the selected version.
+	 */
+	private getDiffNumber(instrument: Instrument) {
+		const diffNumber: number = (this.selectedVersion as any)[`diff_${instrument}`]
+		return diffNumber == -1 || diffNumber == undefined ? 'Unknown' : String(diffNumber)
+	}
+
+	/**
+	 * @returns a string describing the list of charted difficulties in the selected version.
+	 */
+	private getChartedDifficultiesText(instrument: Instrument) {
+		const difficulties = Object.keys(this.selectedVersion.chartData.noteCounts[instrument]) as ChartedDifficulty[]
+		if (difficulties.length == 4) { return 'Full Difficulty' }
+		const difficultyNames = []
+		if (difficulties.includes('x')) { difficultyNames.push('Expert') }
+		if (difficulties.includes('h')) { difficultyNames.push('Hard') }
+		if (difficulties.includes('m')) { difficultyNames.push('Medium') }
+		if (difficulties.includes('e')) { difficultyNames.push('Easy') }
+
+		return difficultyNames.join(', ')
+	}
+
+	/**
+	 * Chooses the text to display on the download button.
+	 */
+	private updateDownloadButtonText() {
+		this.downloadButtonText = 'Download'
+		if (this.selectedVersion.driveData.inChartPack) {
+			this.downloadButtonText += ' Chart Pack'
+		} else {
+			this.downloadButtonText += (this.selectedVersion.driveData.isArchive ? ' Archive' : ' Files')
+		}
+
+		if (this.getSelectedChartVersions().length > 1) {
+			if (this.selectedVersion.versionID == this.selectedVersion.latestVersionID) {
+				this.downloadButtonText += ' (Latest)'
+			} else {
+				this.downloadButtonText += ` (${this.getLastModifiedText(this.selectedVersion.lastModified)})`
+			}
+		}
+	}
+
+	/**
+	 * Initializes the version dropdown from `this.selectedVersion` (or removes it if there's only one version).
+	 */
+	private initVersionDropdown() {
+		const $versionDropdown = $('#versionDropdown')
+		const versions = this.getSelectedChartVersions()
+		const values = versions.map(version => ({
+			value: version.versionID,
+			text: 'Uploaded ' + this.getLastModifiedText(version.lastModified),
+			name: 'Uploaded ' + this.getLastModifiedText(version.lastModified),
+		}))
+
+		$versionDropdown.dropdown('setup menu', { values })
+		$versionDropdown.dropdown('setting', 'onChange', (versionID: number) => {
+			this.selectVersion(versions.find(version => version.versionID == versionID))
+		})
+		$versionDropdown.dropdown('set selected', values[0].value)
+	}
+
+	/**
+	 * Returns the list of versions for the selected chart, sorted by `lastModified`.
+	 */
+	getSelectedChartVersions() {
+		return this.charts.find(chart => chart[0].chartID == this.selectedVersion.chartID)
+	}
+
+	/**
+	 * Converts the <lastModified> value to a user-readable format.
+	 * @param lastModified The UNIX timestamp for the lastModified date.
+	 */
+	private getLastModifiedText(lastModified: string) {
+		const date = new Date(lastModified)
+		const day = date.getDate().toString().padStart(2, '0')
+		const month = (date.getMonth() + 1).toString().padStart(2, '0')
+		const year = date.getFullYear().toString().substr(-2)
+		return `${month}/${day}/${year}`
+	}
+
+	/**
+	 * Opens the proxy link or source folder in the default browser.
+	 */
+	onSourceLinkClicked() {
+		const source = this.selectedVersion.driveData.source
+		this.electronService.sendIPC('open-url', source.proxyLink ?? `https://drive.google.com/drive/folders/${source.sourceDriveID}`)
+	}
+
+	/**
+	 * @returns `true` if the source folder button should be shown.
+	 */
+	shownFolderButton() {
+		const driveData = this.selectedVersion.driveData
+		return driveData.source.proxyLink || driveData.source.sourceDriveID != driveData.folderID
+	}
+
+	/**
+	 * Opens the chart folder in the default browser.
+	 */
+	onFolderButtonClicked() {
+		this.electronService.sendIPC('open-url', `https://drive.google.com/drive/folders/${this.selectedVersion.driveData.folderID}`)
+	}
+
+	/**
+	 * Adds the selected version to the download queue.
+	 */
+	onDownloadClicked() {
+		this.downloadService.addDownload(
+			this.selectedVersion.versionID, {
+			chartName: this.selectedVersion.chartName,
+			artist: this.songResult.artist,
+			charter: this.selectedVersion.charters,
+			driveData: this.selectedVersion.driveData,
+		})
+	}
+}

src-angular/app/components/browse/result-table/result-table-row/result-table-row.component.html

@@ -0,0 +1,12 @@
+<td>
+	<div #checkbox class="ui checkbox" (click)="$event.stopPropagation()">
+		<input type="checkbox" />
+	</div>
+</td>
+<td>
+	<span id="chartCount" *ngIf="result.chartCount > 1">{{ result.chartCount }}</span
+	>{{ result.name }}
+</td>
+<td>{{ result.artist }}</td>
+<td>{{ result.album || 'Various' }}</td>
+<td>{{ result.genre || 'Various' }}</td>

src-angular/app/components/browse/result-table/result-table-row/result-table-row.component.scss

@@ -0,0 +1,10 @@
+.ui.checkbox {
+  display: block;
+}
+
+#chartCount {
+  background-color: lightgray;
+  border-radius: 3px;
+  padding: 1px 4px 2px 4px;
+  margin-right: 3px;
+}

src-angular/app/components/browse/result-table/result-table-row/result-table-row.component.ts

@@ -0,0 +1,40 @@
+import { AfterViewInit, Component, ElementRef, Input, ViewChild } from '@angular/core'
+
+import { SongResult } from '../../../../../electron/shared/interfaces/search.interface'
+import { SelectionService } from '../../../../core/services/selection.service'
+
+@Component({
+	selector: 'tr[app-result-table-row]',
+	templateUrl: './result-table-row.component.html',
+	styleUrls: ['./result-table-row.component.scss'],
+})
+export class ResultTableRowComponent implements AfterViewInit {
+	@Input() result: SongResult
+
+	@ViewChild('checkbox', { static: true }) checkbox: ElementRef
+
+	constructor(private selectionService: SelectionService) { }
+
+	get songID() {
+		return this.result.id
+	}
+
+	ngAfterViewInit() {
+		this.selectionService.onSelectionChanged(this.songID, isChecked => {
+			if (isChecked) {
+				$(this.checkbox.nativeElement).checkbox('check')
+			} else {
+				$(this.checkbox.nativeElement).checkbox('uncheck')
+			}
+		})
+
+		$(this.checkbox.nativeElement).checkbox({
+			onChecked: () => {
+				this.selectionService.selectSong(this.songID)
+			},
+			onUnchecked: () => {
+				this.selectionService.deselectSong(this.songID)
+			},
+		})
+	}
+}

src-angular/app/components/browse/result-table/result-table.component.html

@@ -0,0 +1,30 @@
+<table
+	id="resultTable"
+	class="ui stackable selectable single sortable fixed line striped compact small table"
+	[class.inverted]="settingsService.theme === 'Dark'">
+	<!-- TODO: maybe have some of these tags customizable? E.g. small/large/compact/padded -->
+	<!-- TODO: learn semantic themes in order to change the $mobileBreakpoint global variable (better search table adjustment) -->
+	<thead>
+		<!-- NOTE: it would be nice to make this header sticky, but Fomantic-UI doesn't currently support that -->
+		<tr>
+			<th class="collapsing" id="checkboxColumn">
+				<div class="ui checkbox" id="checkbox" #checkboxColumn appCheckbox (checked)="checkAll($event)">
+					<input type="checkbox" />
+				</div>
+			</th>
+			<th class="four wide" [class.sorted]="sortColumn === 'name'" [ngClass]="sortDirection" (click)="onColClicked('name')">Name</th>
+			<th class="four wide" [class.sorted]="sortColumn === 'artist'" [ngClass]="sortDirection" (click)="onColClicked('artist')">Artist</th>
+			<th class="four wide" [class.sorted]="sortColumn === 'album'" [ngClass]="sortDirection" (click)="onColClicked('album')">Album</th>
+			<th class="four wide" [class.sorted]="sortColumn === 'genre'" [ngClass]="sortDirection" (click)="onColClicked('genre')">Genre</th>
+		</tr>
+	</thead>
+	<tbody>
+		<tr
+			app-result-table-row
+			#tableRow
+			*ngFor="let result of results"
+			(click)="onRowClicked(result)"
+			[class.active]="activeRowID === result.id"
+			[result]="result"></tr>
+	</tbody>
+</table>

src-angular/app/components/browse/result-table/result-table.component.scss

@@ -0,0 +1,25 @@
+:host {
+  display: contents;
+}
+
+.ui.checkbox {
+  display: block;
+}
+
+#checkboxColumn {
+  width: 34.64px;
+}
+
+#resultTable {
+  border-radius: 0px;
+
+  thead>tr:first-child>th:first-child,
+  thead>tr:first-child>th:last-child {
+    border-radius: 0px;
+  }
+  th {
+    position: sticky;
+    top: 0;
+    z-index:1;
+  }
+}

src-angular/app/components/browse/result-table/result-table.component.ts

@@ -0,0 +1,85 @@
+import { Component, EventEmitter, OnInit, Output, QueryList, ViewChild, ViewChildren } from '@angular/core'
+
+import Comparators from 'comparators'
+
+import { SettingsService } from 'src/app/core/services/settings.service'
+import { SongResult } from '../../../../electron/shared/interfaces/search.interface'
+import { CheckboxDirective } from '../../../core/directives/checkbox.directive'
+import { SearchService } from '../../../core/services/search.service'
+import { SelectionService } from '../../../core/services/selection.service'
+import { ResultTableRowComponent } from './result-table-row/result-table-row.component'
+
+@Component({
+	selector: 'app-result-table',
+	templateUrl: './result-table.component.html',
+	styleUrls: ['./result-table.component.scss'],
+})
+export class ResultTableComponent implements OnInit {
+
+	@Output() rowClicked = new EventEmitter<SongResult>()
+
+	@ViewChild(CheckboxDirective, { static: true }) checkboxColumn: CheckboxDirective
+	@ViewChildren('tableRow') tableRows: QueryList<ResultTableRowComponent>
+
+	results: SongResult[] = []
+	activeRowID: number = null
+	sortDirection: 'ascending' | 'descending' = 'descending'
+	sortColumn: 'name' | 'artist' | 'album' | 'genre' | null = null
+
+	constructor(
+		private searchService: SearchService,
+		private selectionService: SelectionService,
+		public settingsService: SettingsService
+	) { }
+
+	ngOnInit() {
+		this.selectionService.onSelectAllChanged(selected => {
+			this.checkboxColumn.check(selected)
+		})
+
+		this.searchService.onSearchChanged(results => {
+			this.activeRowID = null
+			this.results = results
+			this.updateSort()
+		})
+
+		this.searchService.onNewSearch(() => {
+			this.sortColumn = null
+		})
+	}
+
+	onRowClicked(result: SongResult) {
+		this.activeRowID = result.id
+		this.rowClicked.emit(result)
+	}
+
+	onColClicked(column: 'name' | 'artist' | 'album' | 'genre') {
+		if (this.results.length == 0) { return }
+		if (this.sortColumn != column) {
+			this.sortColumn = column
+			this.sortDirection = 'descending'
+		} else if (this.sortDirection == 'descending') {
+			this.sortDirection = 'ascending'
+		} else {
+			this.sortDirection = 'descending'
+		}
+		this.updateSort()
+	}
+
+	private updateSort() {
+		if (this.sortColumn != null) {
+			this.results.sort(Comparators.comparing(this.sortColumn, { reversed: this.sortDirection == 'ascending' }))
+		}
+	}
+
+	/**
+	 * Called when the user checks the `checkboxColumn`.
+	 */
+	checkAll(isChecked: boolean) {
+		if (isChecked) {
+			this.selectionService.selectAll()
+		} else {
+			this.selectionService.deselectAll()
+		}
+	}
+}

src-angular/app/components/browse/search-bar/search-bar.component.html

@@ -0,0 +1,240 @@
+<div id="searchMenu" class="ui bottom attached borderless menu">
+	<div class="item">
+		<div class="ui icon input" [class.loading]="isLoading()">
+			<input #searchBox type="text" placeholder=" Search..." (keyup.enter)="onSearch(searchBox.value)" />
+			<i
+				#searchIcon
+				id="searchIcon"
+				class="link icon"
+				[ngClass]="isError ? 'red exclamation triangle' : 'search'"
+				data-content="Failed to connect to the Bridge database"
+				data-position="bottom right"></i>
+		</div>
+	</div>
+
+	<div id="quantityDropdownItem" [class.hidden]="!showAdvanced" class="item">
+		<div #quantityDropdown class="ui compact selection dropdown">
+			<input name="quantityMatch" type="hidden" />
+			<i class="dropdown icon"></i>
+			<div class="text"><b>all</b> words match</div>
+			<div class="menu">
+				<div id="dropdownItem" class="active selected item" data-value="all"><b>all</b> words match</div>
+				<div id="dropdownItem" class="item" data-value="any"><b>any</b> words match</div>
+			</div>
+		</div>
+	</div>
+
+	<div id="similarityDropdownItem" [class.hidden]="!showAdvanced" class="item">
+		<div #similarityDropdown class="ui compact selection dropdown">
+			<input name="similarityMatch" type="hidden" value="similar" />
+			<i class="dropdown icon"></i>
+			<div class="text"><b>similar</b> words match</div>
+			<div class="menu">
+				<div id="dropdownItem" class="active selected item" data-value="similar"><b>similar</b> words match</div>
+				<div id="dropdownItem" class="item" data-value="exact"><b>exact</b> words match</div>
+			</div>
+		</div>
+	</div>
+
+	<div class="item right">
+		<button class="mini ui right labeled icon button" (click)="onAdvancedSearchClick()">
+			Advanced Search
+			<i class="angle double icon" [ngClass]="showAdvanced ? 'up' : 'down'"></i>
+		</button>
+	</div>
+</div>
+
+<div id="advancedSearchForm" [class.collapsed]="!showAdvanced" class="ui horizontal segments">
+	<div class="ui secondary segment">
+		<div class="grouped fields">
+			<h5 class="ui dividing header">Search for</h5>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="name" [(ngModel)]="searchSettings.fields.name" />
+					<label>Name</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="artist" [(ngModel)]="searchSettings.fields.artist" />
+					<label>Artist</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="album" [(ngModel)]="searchSettings.fields.album" />
+					<label>Album</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="genre" [(ngModel)]="searchSettings.fields.genre" />
+					<label>Genre</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="year" [(ngModel)]="searchSettings.fields.year" />
+					<label>Year</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="charter" [(ngModel)]="searchSettings.fields.charter" />
+					<label>Charter</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="tag" [(ngModel)]="searchSettings.fields.tag" />
+					<label>Tag</label>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="ui secondary segment">
+		<div class="grouped fields">
+			<h5 class="ui dividing header">Must include</h5>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="sections" [(ngModel)]="searchSettings.tags.sections" />
+					<label>Sections</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="starpower" [(ngModel)]="searchSettings.tags['star power']" />
+					<label>Star Power</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="forcing" [(ngModel)]="searchSettings.tags.forcing" />
+					<label>Forcing</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="taps" [(ngModel)]="searchSettings.tags.taps" />
+					<label>Taps</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="lyrics" [(ngModel)]="searchSettings.tags.lyrics" />
+					<label>Lyrics</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="videobackground" [(ngModel)]="searchSettings.tags.video" />
+					<label>Video Background</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="stems" [(ngModel)]="searchSettings.tags.stems" />
+					<label>Audio Stems</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="solosections" [(ngModel)]="searchSettings.tags['solo sections']" />
+					<label>Solo Sections</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="opennotes" [(ngModel)]="searchSettings.tags['open notes']" />
+					<label>Open Notes</label>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="ui secondary segment">
+		<div class="grouped fields">
+			<h5 class="ui dividing header">Instruments</h5>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="guitar" [(ngModel)]="searchSettings.instruments.guitar" />
+					<label>Guitar</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="bass" [(ngModel)]="searchSettings.instruments.bass" />
+					<label>Bass</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="rhythm" [(ngModel)]="searchSettings.instruments.rhythm" />
+					<label>Rhythm</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="keys" [(ngModel)]="searchSettings.instruments.keys" />
+					<label>Keys</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="drums" [(ngModel)]="searchSettings.instruments.drums" />
+					<label>Drums</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="guitarghl" [(ngModel)]="searchSettings.instruments.guitarghl" />
+					<label>GHL Guitar</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="bassghl" [(ngModel)]="searchSettings.instruments.bassghl" />
+					<label>GHL Bass</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="vocals" [(ngModel)]="searchSettings.instruments.vocals" />
+					<label>Vocals</label>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="ui secondary segment">
+		<h5 class="ui dividing header">Charted difficulties</h5>
+		<div class="grouped fields">
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="expert" [(ngModel)]="searchSettings.difficulties.expert" />
+					<label>Expert</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="hard" [(ngModel)]="searchSettings.difficulties.hard" />
+					<label>Hard</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="medium" [(ngModel)]="searchSettings.difficulties.medium" />
+					<label>Medium</label>
+				</div>
+			</div>
+			<div class="field">
+				<div class="ui checkbox">
+					<input type="checkbox" name="easy" [(ngModel)]="searchSettings.difficulties.easy" />
+					<label>Easy</label>
+				</div>
+			</div>
+			<h5 class="ui dividing header">Difficulty range</h5>
+			<div class="field">
+				<div #diffSlider class="ui labeled ticked inverted range slider" id="diffSlider"></div>
+			</div>
+		</div>
+	</div>
+</div>

src-angular/app/components/browse/search-bar/search-bar.component.scss

@@ -0,0 +1,51 @@
+#searchMenu {
+  flex-wrap: wrap;
+  margin-bottom: 0em;
+  border-radius: 0px;
+}
+
+#searchMenu>.item {
+  padding: .3em .4em;
+  min-height: inherit;
+}
+
+#searchMenu>.item:first-child {
+  box-sizing: content-box;
+}
+
+#searchIcon {
+  cursor: default;
+  box-sizing: border-box;
+}
+
+#advancedSearchForm {
+  margin: 0em;
+  border-width: 0px;
+  overflow: hidden;
+  transition: max-height 350ms cubic-bezier(0.45, 0, 0.55, 1);
+  max-height: 243.913px; /* This is its preferred height. Transition needs a static target number to work. */
+}
+
+.collapsed {
+  max-height: 0px !important;
+}
+
+#quantityDropdownItem, #similarityDropdownItem {
+  opacity: 1;
+  visibility: visible;
+  max-width: 100vw;
+  max-height: 100vh;
+  transition: visibility 0s, opacity 350ms cubic-bezier(0.45, 0, 0.55, 1);
+}
+
+.hidden {
+  opacity: 0 !important;
+  visibility: hidden !important;
+  max-width: 0px !important;
+  max-height: 0px !important;
+  transition:
+    opacity 350ms cubic-bezier(0.45, 0, 0.55, 1),
+    visibility 0s linear 350ms,
+    max-width 0s linear 350ms,
+    max-height 0s linear 350ms !important;
+}

src-angular/app/components/browse/search-bar/search-bar.component.ts

@@ -0,0 +1,75 @@
+import { AfterViewInit, Component, ElementRef, ViewChild } from '@angular/core'
+
+import { SearchService } from 'src/app/core/services/search.service'
+import { getDefaultSearch } from 'src/electron/shared/interfaces/search.interface'
+
+@Component({
+	selector: 'app-search-bar',
+	templateUrl: './search-bar.component.html',
+	styleUrls: ['./search-bar.component.scss'],
+})
+export class SearchBarComponent implements AfterViewInit {
+
+	@ViewChild('searchIcon', { static: true }) searchIcon: ElementRef
+	@ViewChild('quantityDropdown', { static: true }) quantityDropdown: ElementRef
+	@ViewChild('similarityDropdown', { static: true }) similarityDropdown: ElementRef
+	@ViewChild('diffSlider', { static: true }) diffSlider: ElementRef
+
+	isError = false
+	showAdvanced = false
+	searchSettings = getDefaultSearch()
+	private sliderInitialized = false
+
+	constructor(public searchService: SearchService) { }
+
+	ngAfterViewInit() {
+		$(this.searchIcon.nativeElement).popup({
+			onShow: () => this.isError, // Only show the popup if there is an error
+		})
+		this.searchService.onSearchErrorStateUpdate(isError => {
+			this.isError = isError
+		})
+		$(this.quantityDropdown.nativeElement).dropdown({
+			onChange: (value: string) => {
+				this.searchSettings.quantity = value as 'all' | 'any'
+			},
+		})
+		$(this.similarityDropdown.nativeElement).dropdown({
+			onChange: (value: string) => {
+				this.searchSettings.similarity = value as 'similar' | 'exact'
+			},
+		})
+	}
+
+	onSearch(query: string) {
+		this.searchSettings.query = query
+		this.searchSettings.limit = 50 + 1
+		this.searchSettings.offset = 0
+		this.searchService.newSearch(this.searchSettings)
+	}
+
+	onAdvancedSearchClick() {
+		this.showAdvanced = !this.showAdvanced
+
+		if (!this.sliderInitialized) {
+			setTimeout(() => { // Initialization requires this element to not be collapsed
+				$(this.diffSlider.nativeElement).slider({
+					min: 0,
+					max: 6,
+					start: 0,
+					end: 6,
+					step: 1,
+					onChange: (_length: number, min: number, max: number) => {
+						this.searchSettings.minDiff = min
+						this.searchSettings.maxDiff = max
+					},
+				})
+			}, 50)
+			this.sliderInitialized = true
+		}
+	}
+
+	isLoading() {
+		return this.searchService.isLoading()
+	}
+}

src-angular/app/components/browse/status-bar/downloads-modal/downloads-modal.component.html

@@ -0,0 +1,28 @@
+<div *ngIf="downloads.length > 0" class="ui segments">
+	<div *ngFor="let download of downloads; trackBy: trackByVersionID" class="ui segment" [style.background-color]="getBackgroundColor(download)">
+		<h3 id="downloadTitle">
+			<span style="flex-grow: 1">{{ download.title }}</span>
+			<i class="inside right close icon" (click)="cancelDownload(download.versionID)"></i>
+		</h3>
+
+		<div id="downloadText">
+			<span style="flex-grow: 1">{{ download.header }}</span>
+			<span *ngIf="!download.isLink" class="description">{{ download.description }}</span>
+			<span *ngIf="download.isLink" class="description">
+				<a (click)="openFolder(download.description)">{{ download.description }}</a>
+			</span>
+		</div>
+
+		<div id="downloadProgressDiv">
+			<div id="downloadProgressBar" appProgressBar [percent]="download.percent" class="ui small progress">
+				<div class="bar" [style.height]="download.type === 'error' ? '-webkit-fill-available' : undefined">
+					<div class="progress"></div>
+				</div>
+			</div>
+			<button *ngIf="download.type === 'error'" class="ui right attached labeled compact icon button" (click)="retryDownload(download.versionID)">
+				<i class="redo icon"></i>
+				Retry
+			</button>
+		</div>
+	</div>
+</div>

src-angular/app/components/browse/status-bar/downloads-modal/downloads-modal.component.scss

@@ -0,0 +1,26 @@
+#downloadTitle,
+#downloadText {
+  display: flex;
+  margin-bottom: 0.3rem;
+}
+
+#downloadText {
+  flex-wrap: wrap;
+}
+
+#downloadProgressDiv {
+  display: flex;
+}
+
+#downloadProgressBar {
+  flex-grow: 1;
+  margin: 0;
+  .bar {
+    transform: translateY(-50%);
+    top: 50%;
+  }
+}
+
+i.close.icon, a {
+  cursor: pointer;
+}

src-angular/app/components/browse/status-bar/downloads-modal/downloads-modal.component.ts

@@ -0,0 +1,56 @@
+import { ChangeDetectorRef, Component } from '@angular/core'
+
+import { DownloadProgress } from '../../../../../electron/shared/interfaces/download.interface'
+import { DownloadService } from '../../../../core/services/download.service'
+import { ElectronService } from '../../../../core/services/electron.service'
+
+@Component({
+	selector: 'app-downloads-modal',
+	templateUrl: './downloads-modal.component.html',
+	styleUrls: ['./downloads-modal.component.scss'],
+})
+export class DownloadsModalComponent {
+
+	downloads: DownloadProgress[] = []
+
+	constructor(private electronService: ElectronService, private downloadService: DownloadService, ref: ChangeDetectorRef) {
+		electronService.receiveIPC('queue-updated', order => {
+			this.downloads.sort((a, b) => order.indexOf(a.versionID) - order.indexOf(b.versionID))
+		})
+
+		downloadService.onDownloadUpdated(download => {
+			const index = this.downloads.findIndex(thisDownload => thisDownload.versionID == download.versionID)
+			if (download.type == 'cancel') {
+				this.downloads = this.downloads.filter(thisDownload => thisDownload.versionID != download.versionID)
+			} else if (index == -1) {
+				this.downloads.push(download)
+			} else {
+				this.downloads[index] = download
+			}
+			ref.detectChanges()
+		})
+	}
+
+	trackByVersionID(_index: number, item: DownloadProgress) {
+		return item.versionID
+	}
+
+	cancelDownload(versionID: number) {
+		this.downloadService.cancelDownload(versionID)
+	}
+
+	retryDownload(versionID: number) {
+		this.downloadService.retryDownload(versionID)
+	}
+
+	getBackgroundColor(download: DownloadProgress) {
+		switch (download.type) {
+			case 'error': return '#a63a3a'
+			default: return undefined
+		}
+	}
+
+	openFolder(filepath: string) {
+		this.electronService.showFolder(filepath)
+	}
+}

src-angular/app/components/browse/status-bar/status-bar.component.html

@@ -0,0 +1,44 @@
+<div id="bottomMenu" class="ui bottom borderless menu">
+	<div *ngIf="resultCount > 0" class="item">{{ resultCount }}{{ allResultsVisible ? '' : '+' }} Result{{ resultCount === 1 ? '' : 's' }}</div>
+	<div class="item">
+		<button *ngIf="selectedResults.length > 1" (click)="downloadSelected()" class="ui positive button">
+			Download {{ selectedResults.length }} Results
+		</button>
+	</div>
+	<a *ngIf="downloading" class="item right" (click)="showDownloads()">
+		<div #progressBar appProgressBar [percent]="percent" class="ui progress" [style.background-color]="error ? 'indianred' : undefined">
+			<div class="bar">
+				<div class="progress"></div>
+			</div>
+		</div>
+	</a>
+
+	<div id="selectedModal" class="ui modal">
+		<div class="header">Some selected songs have more than one chart!</div>
+		<div class="scrolling content">
+			<div class="ui segments">
+				<div class="ui segment" *ngFor="let chartGroup of chartGroups">
+					<p *ngFor="let chart of chartGroup">
+						{{ chart.chartName }} <b>[{{ chart.charters }}]</b>
+					</p>
+				</div>
+			</div>
+		</div>
+		<div class="actions">
+			<div class="ui approve button" (click)="downloadAllCharts()">Download all charts for each song</div>
+			<div class="ui cancel button" (click)="deselectSongsWithMultipleCharts()">Deselect these songs</div>
+			<div class="ui cancel button">Cancel</div>
+		</div>
+	</div>
+
+	<div id="downloadsModal" class="ui modal">
+		<i class="inside close icon"></i>
+		<div class="header">
+			<span>Downloads</span>
+			<div *ngIf="multipleCompleted" class="ui positive compact button" (click)="clearCompleted()">Clear completed</div>
+		</div>
+		<div class="scrolling content">
+			<app-downloads-modal></app-downloads-modal>
+		</div>
+	</div>
+</div>

src-angular/app/components/browse/status-bar/status-bar.component.scss

@@ -0,0 +1,23 @@
+.ui.progress {
+  margin: 0;
+  min-width: 200px;
+}
+
+#bottomMenu {
+  border-radius: 0px;
+  border-width: 1px 0px 0px 0px;
+}
+
+#downloadsModal {
+  .header {
+    display: flex;
+
+    span {
+      flex-grow: 1;
+    }
+
+    .ui.positive.button {
+      margin-right: 30px;
+    }
+  }
+}

src-angular/app/components/browse/status-bar/status-bar.component.ts

@@ -0,0 +1,115 @@
+import { ChangeDetectorRef, Component } from '@angular/core'
+
+import { VersionResult } from '../../../../electron/shared/interfaces/songDetails.interface'
+import { groupBy } from '../../../../electron/shared/UtilFunctions'
+import { DownloadService } from '../../../core/services/download.service'
+import { ElectronService } from '../../../core/services/electron.service'
+import { SearchService } from '../../../core/services/search.service'
+import { SelectionService } from '../../../core/services/selection.service'
+
+@Component({
+	selector: 'app-status-bar',
+	templateUrl: './status-bar.component.html',
+	styleUrls: ['./status-bar.component.scss'],
+})
+export class StatusBarComponent {
+
+	resultCount = 0
+	multipleCompleted = false
+	downloading = false
+	error = false
+	percent = 0
+	batchResults: VersionResult[]
+	chartGroups: VersionResult[][]
+
+	constructor(
+		private electronService: ElectronService,
+		private downloadService: DownloadService,
+		private searchService: SearchService,
+		private selectionService: SelectionService,
+		ref: ChangeDetectorRef
+	) {
+		downloadService.onDownloadUpdated(() => {
+			setTimeout(() => { // Make sure this is the last callback executed to get the accurate downloadCount
+				this.downloading = downloadService.downloadCount > 0
+				this.multipleCompleted = downloadService.completedCount > 1
+				this.percent = downloadService.totalDownloadingPercent
+				this.error = downloadService.anyErrorsExist
+				ref.detectChanges()
+			}, 0)
+		})
+
+		searchService.onSearchChanged(() => {
+			this.resultCount = searchService.resultCount
+		})
+	}
+
+	get allResultsVisible() {
+		return this.searchService.allResultsVisible
+	}
+
+	get selectedResults() {
+		return this.selectionService.getSelectedResults()
+	}
+
+	showDownloads() {
+		$('#downloadsModal').modal('show')
+	}
+
+	async downloadSelected() {
+		this.chartGroups = []
+		this.batchResults = await this.electronService.invoke('batch-song-details', this.selectedResults.map(result => result.id))
+		const versionGroups = groupBy(this.batchResults, 'songID')
+		for (const versionGroup of versionGroups) {
+			if (versionGroup.findIndex(version => version.chartID != versionGroup[0].chartID) != -1) {
+				// Must have multiple charts of this song
+				this.chartGroups.push(versionGroup.filter(version => version.versionID == version.latestVersionID))
+			}
+		}
+
+		if (this.chartGroups.length == 0) {
+			for (const versions of versionGroups) {
+				this.searchService.sortChart(versions)
+				const downloadVersion = versions[0]
+				const downloadSong = this.selectedResults.find(song => song.id == downloadVersion.songID)
+				this.downloadService.addDownload(
+					downloadVersion.versionID, {
+					chartName: downloadVersion.chartName,
+					artist: downloadSong.artist,
+					charter: downloadVersion.charters,
+					driveData: downloadVersion.driveData,
+				})
+			}
+		} else {
+			$('#selectedModal').modal('show')
+			// [download all charts for each song] [deselect these songs] [X]
+		}
+	}
+
+	downloadAllCharts() {
+		const songChartGroups = groupBy(this.batchResults, 'songID', 'chartID')
+		for (const chart of songChartGroups) {
+			this.searchService.sortChart(chart)
+			const downloadVersion = chart[0]
+			const downloadSong = this.selectedResults.find(song => song.id == downloadVersion.songID)
+			this.downloadService.addDownload(
+				downloadVersion.versionID, {
+				chartName: downloadVersion.chartName,
+				artist: downloadSong.artist,
+				charter: downloadVersion.charters,
+				driveData: downloadVersion.driveData,
+			}
+			)
+		}
+	}
+
+	deselectSongsWithMultipleCharts() {
+		for (const chartGroup of this.chartGroups) {
+			this.selectionService.deselectSong(chartGroup[0].songID)
+		}
+	}
+
+	clearCompleted() {
+		this.downloadService.cancelCompleted()
+	}
+}

src-angular/app/components/settings/settings.component.html

@@ -0,0 +1,71 @@
+<h3 class="ui header">Paths</h3>
+<div class="ui form">
+	<div class="field">
+		<label>Chart library directory</label>
+		<div class="ui action input">
+			<input
+				[value]="settingsService.libraryDirectory || 'No folder selected'"
+				class="default-cursor"
+				readonly
+				type="text"
+				placeholder="No directory selected!" />
+			<button *ngIf="settingsService.libraryDirectory !== undefined" (click)="openLibraryDirectory()" class="ui button">Open Folder</button>
+			<button (click)="getLibraryDirectory()" class="ui button positive">Choose</button>
+		</div>
+	</div>
+</div>
+
+<h3 class="ui header">Cache</h3>
+<div>
+	Current Cache Size:
+	<div class="ui label" style="margin-left: 1em">{{ cacheSize }}</div>
+</div>
+<button style="margin-top: 0.5em" (click)="clearCache()" class="ui button">Clear Cache</button>
+
+<h3 class="ui header">Downloads</h3>
+<div class="ui form">
+	<div class="field">
+		<div appCheckbox #videoCheckbox class="ui checkbox" (checked)="downloadVideos($event)">
+			<input type="checkbox" />
+			<label>Download video backgrounds</label>
+		</div>
+	</div>
+</div>
+<div class="field">
+	<label>Google rate limit delay</label>
+	<div id="rateLimitInput" class="ui right labeled input">
+		<input type="number" [value]="settingsService.rateLimitDelay" (input)="changeRateLimit($event)" />
+		<div class="ui basic label">sec</div>
+	</div>
+</div>
+<div *ngIf="settingsService.rateLimitDelay < 30" class="ui warning message">
+	<i class="exclamation circle icon"></i>
+	<b>Warning:</b> downloading files from Google with a delay less than about 30 seconds will eventually cause Google to refuse download requests from
+	this program for a few hours. This limitation will be removed in a future update.
+</div>
+
+<h3 class="ui header">Theme</h3>
+<div #themeDropdown class="ui selection dropdown mr">
+	<input type="hidden" name="sort" [value]="settingsService.theme" />
+	<i class="dropdown icon"></i>
+	<div class="default text">{{ settingsService.theme }}</div>
+	<div class="menu">
+		<div class="item" [attr.data-value]="i" *ngFor="let theme of settingsService.builtinThemes; let i = index">{{ theme }}</div>
+	</div>
+</div>
+
+<div class="bottom">
+	<div class="ui buttons">
+		<button *ngIf="updateAvailable" class="ui labeled icon positive button" (click)="downloadUpdate()">
+			<i class="left alternate icon" [ngClass]="updateDownloaded ? 'sync' : 'cloud download'"></i>{{ downloadUpdateText }}
+		</button>
+		<button *ngIf="updateAvailable === null" class="ui labeled yellow icon button" [class.disabled]="updateRetrying" (click)="retryUpdate()">
+			<i class="left alternate sync alternate icon" [class.loading]="updateRetrying"></i>{{ retryUpdateText }}
+		</button>
+		<button id="versionNumberButton" class="ui basic disabled button">{{ currentVersion }}</button>
+	</div>
+
+	<button class="ui basic icon button" data-tooltip="Toggle developer tools" data-position="top right" (click)="toggleDevTools()">
+		<i class="cog icon"></i>
+	</button>
+</div>

src-angular/app/components/settings/settings.component.scss

@@ -0,0 +1,24 @@
+:host {
+  flex: 1;
+  padding: 2em;
+  overflow-y: auto;
+}
+
+.default-cursor {
+  cursor: default;
+  pointer-events: none;
+}
+
+#rateLimitInput {
+  width: unset !important;
+}
+
+.bottom {
+  position: absolute;
+  bottom: 2em;
+  right: 2em;
+}
+
+#versionNumberButton {
+  margin-right: 1em;
+}

src-angular/app/components/settings/settings.component.ts

@@ -0,0 +1,140 @@
+import { AfterViewInit, ChangeDetectorRef, Component, ElementRef, OnInit, ViewChild } from '@angular/core'
+
+import { CheckboxDirective } from 'src/app/core/directives/checkbox.directive'
+import { ElectronService } from 'src/app/core/services/electron.service'
+import { SettingsService } from 'src/app/core/services/settings.service'
+
+@Component({
+	selector: 'app-settings',
+	templateUrl: './settings.component.html',
+	styleUrls: ['./settings.component.scss'],
+})
+export class SettingsComponent implements OnInit, AfterViewInit {
+	@ViewChild('themeDropdown', { static: true }) themeDropdown: ElementRef
+	@ViewChild(CheckboxDirective, { static: true }) videoCheckbox: CheckboxDirective
+
+	cacheSize = 'Calculating...'
+	updateAvailable = false
+	loginClicked = false
+	downloadUpdateText = 'Update available'
+	retryUpdateText = 'Failed to check for update'
+	updateDownloading = false
+	updateDownloaded = false
+	updateRetrying = false
+	currentVersion = ''
+
+	constructor(
+		public settingsService: SettingsService,
+		private electronService: ElectronService,
+		private ref: ChangeDetectorRef
+	) { }
+
+	async ngOnInit() {
+		this.electronService.receiveIPC('update-available', result => {
+			this.updateAvailable = result != null
+			this.updateRetrying = false
+			if (this.updateAvailable) {
+				this.downloadUpdateText = `Update available (${result.version})`
+			}
+			this.ref.detectChanges()
+		})
+		this.electronService.receiveIPC('update-error', (err: Error) => {
+			console.log(err)
+			this.updateAvailable = null
+			this.updateRetrying = false
+			this.retryUpdateText = `Failed to check for update: ${err.message}`
+			this.ref.detectChanges()
+		})
+		this.electronService.invoke('get-current-version', undefined).then(version => {
+			this.currentVersion = `v${version}`
+			this.ref.detectChanges()
+		})
+		this.electronService.invoke('get-update-available', undefined).then(isAvailable => {
+			this.updateAvailable = isAvailable
+			this.ref.detectChanges()
+		})
+
+		const cacheSize = await this.settingsService.getCacheSize()
+		this.cacheSize = Math.round(cacheSize / 1000000) + ' MB'
+	}
+
+	ngAfterViewInit() {
+		$(this.themeDropdown.nativeElement).dropdown({
+			onChange: (_value: string, text: string) => {
+				this.settingsService.theme = text
+			},
+		})
+
+		this.videoCheckbox.check(this.settingsService.downloadVideos)
+	}
+
+	async clearCache() {
+		this.cacheSize = 'Please wait...'
+		await this.settingsService.clearCache()
+		this.cacheSize = 'Cleared!'
+	}
+
+	async downloadVideos(isChecked: boolean) {
+		this.settingsService.downloadVideos = isChecked
+	}
+
+	async getLibraryDirectory() {
+		const result = await this.electronService.showOpenDialog({
+			title: 'Choose library folder',
+			buttonLabel: 'This is where my charts are!',
+			defaultPath: this.settingsService.libraryDirectory || '',
+			properties: ['openDirectory'],
+		})
+
+		if (result.canceled == false) {
+			this.settingsService.libraryDirectory = result.filePaths[0]
+		}
+	}
+
+	openLibraryDirectory() {
+		this.electronService.openFolder(this.settingsService.libraryDirectory)
+	}
+
+	changeRateLimit(event: Event) {
+		const inputElement = event.srcElement as HTMLInputElement
+		this.settingsService.rateLimitDelay = Number(inputElement.value)
+	}
+
+	downloadUpdate() {
+		if (this.updateDownloaded) {
+			this.electronService.sendIPC('quit-and-install', undefined)
+		} else if (!this.updateDownloading) {
+			this.updateDownloading = true
+			this.electronService.sendIPC('download-update', undefined)
+			this.downloadUpdateText = 'Downloading... (0%)'
+			this.electronService.receiveIPC('update-progress', result => {
+				this.downloadUpdateText = `Downloading... (${result.percent.toFixed(0)}%)`
+				this.ref.detectChanges()
+			})
+			this.electronService.receiveIPC('update-downloaded', () => {
+				this.downloadUpdateText = 'Quit and install update'
+				this.updateDownloaded = true
+				this.ref.detectChanges()
+			})
+		}
+	}
+
+	retryUpdate() {
+		if (this.updateRetrying == false) {
+			this.updateRetrying = true
+			this.retryUpdateText = 'Retrying...'
+			this.ref.detectChanges()
+			this.electronService.sendIPC('retry-update', undefined)
+		}
+	}
+
+	toggleDevTools() {
+		const toolsOpened = this.electronService.currentWindow.webContents.isDevToolsOpened()
+
+		if (toolsOpened) {
+			this.electronService.currentWindow.webContents.closeDevTools()
+		} else {
+			this.electronService.currentWindow.webContents.openDevTools()
+		}
+	}
+}

src-angular/app/components/toolbar/toolbar.component.html

@@ -0,0 +1,15 @@
+<div class="ui top menu">
+	<a class="item" routerLinkActive="active" routerLink="/browse">Browse</a>
+	<!-- TODO <a class="item" routerLinkActive="active" routerLink="/library">Library</a> -->
+	<a class="item" routerLinkActive="active" routerLink="/settings">
+		<i *ngIf="updateAvailable" class="teal small circle icon"></i>
+		<i *ngIf="updateAvailable === null" class="small yellow exclamation triangle icon"></i>
+		Settings
+	</a>
+
+	<div class="right menu">
+		<a class="item traffic-light" (click)="minimize()"><i class="minus icon"></i></a>
+		<a class="item traffic-light" (click)="toggleMaximized()"><i class="icon window" [ngClass]="isMaximized ? 'restore' : 'maximize'"></i></a>
+		<a class="item traffic-light close" (click)="close()"><i class="x icon"></i></a>
+	</div>
+</div>

src-angular/app/components/toolbar/toolbar.component.scss

@@ -0,0 +1,27 @@
+.menu {
+  -webkit-app-region: drag;
+  z-index: 9000 !important;
+  border: 0px;
+  border-radius: 0px;
+
+  .item,
+  .item * {
+    border-radius: 0px;
+    -webkit-app-region: no-drag;
+    cursor: default !important;
+  }
+}
+
+.traffic-light {
+  &:before {
+    display: none !important;
+  }
+
+  i {
+    margin: 0 !important;
+  }
+}
+
+.close:hover {
+  background: rgba(255, 0, 0, .15) !important;
+}

src-angular/app/components/toolbar/toolbar.component.ts

@@ -0,0 +1,56 @@
+import { ChangeDetectorRef, Component, OnInit } from '@angular/core'
+
+import { ElectronService } from '../../core/services/electron.service'
+
+@Component({
+	selector: 'app-toolbar',
+	templateUrl: './toolbar.component.html',
+	styleUrls: ['./toolbar.component.scss'],
+})
+export class ToolbarComponent implements OnInit {
+
+	isMaximized: boolean
+	updateAvailable = false
+
+	constructor(private electronService: ElectronService, private ref: ChangeDetectorRef) { }
+
+	async ngOnInit() {
+		this.isMaximized = this.electronService.currentWindow.isMaximized()
+		this.electronService.currentWindow.on('unmaximize', () => {
+			this.isMaximized = false
+			this.ref.detectChanges()
+		})
+		this.electronService.currentWindow.on('maximize', () => {
+			this.isMaximized = true
+			this.ref.detectChanges()
+		})
+
+		this.electronService.receiveIPC('update-available', result => {
+			this.updateAvailable = result != null
+			this.ref.detectChanges()
+		})
+		this.electronService.receiveIPC('update-error', () => {
+			this.updateAvailable = null
+			this.ref.detectChanges()
+		})
+		this.updateAvailable = await this.electronService.invoke('get-update-available', undefined)
+		this.ref.detectChanges()
+	}
+
+	minimize() {
+		this.electronService.currentWindow.minimize()
+	}
+
+	toggleMaximized() {
+		if (this.isMaximized) {
+			this.electronService.currentWindow.restore()
+		} else {
+			this.electronService.currentWindow.maximize()
+		}
+		this.isMaximized = !this.isMaximized
+	}
+
+	close() {
+		this.electronService.quit()
+	}
+}

src-angular/app/core/directives/checkbox.directive.ts

@@ -0,0 +1,38 @@
+import { AfterViewInit, Directive, ElementRef, EventEmitter, Output } from '@angular/core'
+
+@Directive({
+	selector: '[appCheckbox]',
+})
+export class CheckboxDirective implements AfterViewInit {
+	@Output() checked = new EventEmitter<boolean>()
+
+	_isChecked = false
+
+	constructor(private checkbox: ElementRef) { }
+
+	ngAfterViewInit() {
+		$(this.checkbox.nativeElement).checkbox({
+			onChecked: () => {
+				this.checked.emit(true)
+				this._isChecked = true
+			},
+			onUnchecked: () => {
+				this.checked.emit(false)
+				this._isChecked = false
+			},
+		})
+	}
+
+	check(isChecked: boolean) {
+		this._isChecked = isChecked
+		if (isChecked) {
+			$(this.checkbox.nativeElement).checkbox('check')
+		} else {
+			$(this.checkbox.nativeElement).checkbox('uncheck')
+		}
+	}
+
+	get isChecked() {
+		return this._isChecked
+	}
+}

src-angular/app/core/directives/progress-bar.directive.ts

@@ -0,0 +1,29 @@
+import { Directive, ElementRef, Input } from '@angular/core'
+
+import * as _ from 'lodash'
+
+@Directive({
+	selector: '[appProgressBar]',
+})
+export class ProgressBarDirective {
+
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
+	private _$progressBar: any
+
+	progress: (percent: number) => void
+
+	@Input() set percent(percent: number) {
+		this.progress(percent)
+	}
+
+	constructor(private element: ElementRef) {
+		this.progress = _.throttle((percent: number) => this.$progressBar.progress('set').percent(percent), 100)
+	}
+
+	private get $progressBar() {
+		if (!this._$progressBar) {
+			this._$progressBar = $(this.element.nativeElement)
+		}
+		return this._$progressBar
+	}
+}

src-angular/app/core/services/album-art.service.ts

@@ -0,0 +1,26 @@
+import { Injectable } from '@angular/core'
+
+import { ElectronService } from './electron.service'
+
+@Injectable({
+	providedIn: 'root',
+})
+export class AlbumArtService {
+
+	private imageCache: { [songID: number]: string } = {}
+
+	constructor(private electronService: ElectronService) { }
+
+	async getImage(songID: number): Promise<string | null> {
+		if (this.imageCache[songID] == undefined) {
+			const albumArtResult = await this.electronService.invoke('album-art', songID)
+			if (albumArtResult) {
+				this.imageCache[songID] = albumArtResult.base64Art
+			} else {
+				this.imageCache[songID] = null
+			}
+		}
+
+		return this.imageCache[songID]
+	}
+}

src-angular/app/core/services/download.service.ts

@@ -0,0 +1,89 @@
+import { EventEmitter, Injectable } from '@angular/core'
+
+import { DownloadProgress, NewDownload } from '../../../electron/shared/interfaces/download.interface'
+import { ElectronService } from './electron.service'
+
+@Injectable({
+	providedIn: 'root',
+})
+export class DownloadService {
+
+	private downloadUpdatedEmitter = new EventEmitter<DownloadProgress>()
+	private downloads: DownloadProgress[] = []
+
+	constructor(private electronService: ElectronService) {
+		this.electronService.receiveIPC('download-updated', result => {
+			// Update <this.downloads> with result
+			const thisDownloadIndex = this.downloads.findIndex(download => download.versionID == result.versionID)
+			if (result.type == 'cancel') {
+				this.downloads = this.downloads.filter(download => download.versionID != result.versionID)
+			} else if (thisDownloadIndex == -1) {
+				this.downloads.push(result)
+			} else {
+				this.downloads[thisDownloadIndex] = result
+			}
+
+			this.downloadUpdatedEmitter.emit(result)
+		})
+	}
+
+	get downloadCount() {
+		return this.downloads.length
+	}
+
+	get completedCount() {
+		return this.downloads.filter(download => download.type == 'done').length
+	}
+
+	get totalDownloadingPercent() {
+		let total = 0
+		let count = 0
+		for (const download of this.downloads) {
+			if (!download.stale) {
+				total += download.percent
+				count++
+			}
+		}
+		return total / count
+	}
+
+	get anyErrorsExist() {
+		return this.downloads.find(download => download.type == 'error') ? true : false
+	}
+
+	addDownload(versionID: number, newDownload: NewDownload) {
+		if (!this.downloads.find(download => download.versionID == versionID)) { // Don't download something twice
+			if (this.downloads.every(download => download.type == 'done')) { // Reset overall progress bar if it finished
+				this.downloads.forEach(download => download.stale = true)
+			}
+			this.electronService.sendIPC('download', { action: 'add', versionID, data: newDownload })
+		}
+	}
+
+	onDownloadUpdated(callback: (download: DownloadProgress) => void) {
+		this.downloadUpdatedEmitter.subscribe(callback)
+	}
+
+	cancelDownload(versionID: number) {
+		const removedDownload = this.downloads.find(download => download.versionID == versionID)
+		if (['error', 'done'].includes(removedDownload.type)) {
+			this.downloads = this.downloads.filter(download => download.versionID != versionID)
+			removedDownload.type = 'cancel'
+			this.downloadUpdatedEmitter.emit(removedDownload)
+		} else {
+			this.electronService.sendIPC('download', { action: 'cancel', versionID })
+		}
+	}
+
+	cancelCompleted() {
+		for (const download of this.downloads) {
+			if (download.type == 'done') {
+				this.cancelDownload(download.versionID)
+			}
+		}
+	}
+
+	retryDownload(versionID: number) {
+		this.electronService.sendIPC('download', { action: 'retry', versionID })
+	}
+}

src-angular/app/core/services/electron.service.ts

@@ -0,0 +1,81 @@
+import { Injectable } from '@angular/core'
+
+// If you import a module but never use any of the imported values other than as TypeScript types,
+// the resulting javascript file will look as if you never imported the module at all.
+import * as electron from 'electron'
+
+import { IPCEmitEvents, IPCInvokeEvents } from '../../../electron/shared/IPCHandler'
+
+const { app, getCurrentWindow, dialog, session } = window.require('@electron/remote')
+
+@Injectable({
+	providedIn: 'root',
+})
+export class ElectronService {
+	electron: typeof electron
+
+	get isElectron() {
+		return !!(window && window.process && window.process.type)
+	}
+
+	constructor() {
+		if (this.isElectron) {
+			this.electron = window.require('electron')
+			this.receiveIPC('log', results => results.forEach(result => console.log(result)))
+		}
+	}
+
+	get currentWindow() {
+		return getCurrentWindow()
+	}
+
+	/**
+	 * Calls an async function in the main process.
+	 * @param event The name of the IPC event to invoke.
+	 * @param data The data object to send across IPC.
+	 * @returns A promise that resolves to the output data.
+	 */
+	async invoke<E extends keyof IPCInvokeEvents>(event: E, data: IPCInvokeEvents[E]['input']) {
+		return this.electron.ipcRenderer.invoke(event, data) as Promise<IPCInvokeEvents[E]['output']>
+	}
+
+	/**
+	 * Sends an IPC message to the main process.
+	 * @param event The name of the IPC event to send.
+	 * @param data The data object to send across IPC.
+	 */
+	sendIPC<E extends keyof IPCEmitEvents>(event: E, data: IPCEmitEvents[E]) {
+		this.electron.ipcRenderer.send(event, data)
+	}
+
+	/**
+	 * Receives an IPC message from the main process.
+	 * @param event The name of the IPC event to receive.
+	 * @param callback The data object to receive across IPC.
+	 */
+	receiveIPC<E extends keyof IPCEmitEvents>(event: E, callback: (result: IPCEmitEvents[E]) => void) {
+		this.electron.ipcRenderer.on(event, (_event, ...results) => {
+			callback(results[0])
+		})
+	}
+
+	quit() {
+		app.exit()
+	}
+
+	openFolder(filepath: string) {
+		this.electron.shell.openPath(filepath)
+	}
+
+	showFolder(filepath: string) {
+		this.electron.shell.showItemInFolder(filepath)
+	}
+
+	showOpenDialog(options: Electron.OpenDialogOptions) {
+		return dialog.showOpenDialog(this.currentWindow, options)
+	}
+
+	get defaultSession() {
+		return session.defaultSession
+	}
+}

src-angular/app/core/services/search.service.ts

@@ -0,0 +1,119 @@
+import { EventEmitter, Injectable } from '@angular/core'
+
+import { SongResult, SongSearch } from 'src/electron/shared/interfaces/search.interface'
+import { VersionResult } from 'src/electron/shared/interfaces/songDetails.interface'
+import { ElectronService } from './electron.service'
+
+@Injectable({
+	providedIn: 'root',
+})
+export class SearchService {
+
+	private resultsChangedEmitter = new EventEmitter<SongResult[]>() // For when any results change
+	private newResultsEmitter = new EventEmitter<SongResult[]>()     // For when a new search happens
+	private errorStateEmitter = new EventEmitter<boolean>()          // To indicate the search's error state
+	private results: SongResult[] = []
+	private awaitingResults = false
+	private currentQuery: SongSearch
+	private _allResultsVisible = true
+
+	constructor(private electronService: ElectronService) { }
+
+	async newSearch(query: SongSearch) {
+		if (this.awaitingResults) { return }
+		this.awaitingResults = true
+		this.currentQuery = query
+		try {
+			this.results = this.trimLastChart(await this.electronService.invoke('song-search', this.currentQuery))
+			this.errorStateEmitter.emit(false)
+		} catch (err) {
+			this.results = []
+			console.log(err.message)
+			this.errorStateEmitter.emit(true)
+		}
+		this.awaitingResults = false
+
+		this.newResultsEmitter.emit(this.results)
+		this.resultsChangedEmitter.emit(this.results)
+	}
+
+	isLoading() {
+		return this.awaitingResults
+	}
+
+	/**
+	 * Event emitted when new search results are returned
+	 * or when more results are added to an existing search.
+	 * (emitted after `onNewSearch`)
+	 */
+	onSearchChanged(callback: (results: SongResult[]) => void) {
+		this.resultsChangedEmitter.subscribe(callback)
+	}
+
+	/**
+	 * Event emitted when a new search query is typed in.
+	 * (emitted before `onSearchChanged`)
+	 */
+	onNewSearch(callback: (results: SongResult[]) => void) {
+		this.newResultsEmitter.subscribe(callback)
+	}
+
+	/**
+	 * Event emitted when the error state of the search changes.
+	 * (emitted before `onSearchChanged`)
+	 */
+	onSearchErrorStateUpdate(callback: (isError: boolean) => void) {
+		this.errorStateEmitter.subscribe(callback)
+	}
+
+	get resultCount() {
+		return this.results.length
+	}
+
+	async updateScroll() {
+		if (!this.awaitingResults && !this._allResultsVisible) {
+			this.awaitingResults = true
+			this.currentQuery.offset += 50
+			this.results.push(...this.trimLastChart(await this.electronService.invoke('song-search', this.currentQuery)))
+			this.awaitingResults = false
+
+			this.resultsChangedEmitter.emit(this.results)
+		}
+	}
+
+	trimLastChart(results: SongResult[]) {
+		if (results.length > 50) {
+			results.splice(50, 1)
+			this._allResultsVisible = false
+		} else {
+			this._allResultsVisible = true
+		}
+
+		return results
+	}
+
+	get allResultsVisible() {
+		return this._allResultsVisible
+	}
+
+	/**
+	 * Orders `versionResults` by lastModified date, but prefer the
+	 * non-pack version if it's only a few days older.
+	 */
+	sortChart(versionResults: VersionResult[]) {
+		const dates: { [versionID: number]: number } = {}
+		versionResults.forEach(version => dates[version.versionID] = new Date(version.lastModified).getTime())
+		versionResults.sort((v1, v2) => {
+			const diff = dates[v2.versionID] - dates[v1.versionID]
+			if (Math.abs(diff) < 6.048e+8 && v1.driveData.inChartPack != v2.driveData.inChartPack) {
+				if (v1.driveData.inChartPack) {
+					return 1 // prioritize v2
+				} else {
+					return -1 // prioritize v1
+				}
+			} else {
+				return diff
+			}
+		})
+	}
+}

src-angular/app/core/services/selection.service.ts

@@ -0,0 +1,85 @@
+import { EventEmitter, Injectable } from '@angular/core'
+
+import { SongResult } from '../../../electron/shared/interfaces/search.interface'
+import { SearchService } from './search.service'
+
+// Note: this class prevents event cycles by only emitting events if the checkbox changes
+
+@Injectable({
+	providedIn: 'root',
+})
+export class SelectionService {
+
+	private searchResults: SongResult[] = []
+
+	private selectAllChangedEmitter = new EventEmitter<boolean>()
+	private selectionChangedCallbacks: { [songID: number]: (selection: boolean) => void } = {}
+
+	private allSelected = false
+	private selections: { [songID: number]: boolean | undefined } = {}
+
+	constructor(searchService: SearchService) {
+		searchService.onSearchChanged(results => {
+			this.searchResults = results
+			if (this.allSelected) {
+				this.selectAll() // Select newly added rows if allSelected
+			}
+		})
+
+		searchService.onNewSearch(results => {
+			this.searchResults = results
+			this.selectionChangedCallbacks = {}
+			this.selections = {}
+			this.selectAllChangedEmitter.emit(false)
+		})
+	}
+
+	getSelectedResults() {
+		return this.searchResults.filter(result => this.selections[result.id] == true)
+	}
+
+	onSelectAllChanged(callback: (selected: boolean) => void) {
+		this.selectAllChangedEmitter.subscribe(callback)
+	}
+
+	/**
+	 * Emits an event when the selection for `songID` needs to change.
+	 * (note: only one emitter can be registered per `songID`)
+	 */
+	onSelectionChanged(songID: number, callback: (selection: boolean) => void) {
+		this.selectionChangedCallbacks[songID] = callback
+	}
+
+
+	deselectAll() {
+		if (this.allSelected) {
+			this.allSelected = false
+			this.selectAllChangedEmitter.emit(false)
+		}
+
+		setTimeout(() => this.searchResults.forEach(result => this.deselectSong(result.id)), 0)
+	}
+
+	selectAll() {
+		if (!this.allSelected) {
+			this.allSelected = true
+			this.selectAllChangedEmitter.emit(true)
+		}
+
+		setTimeout(() => this.searchResults.forEach(result => this.selectSong(result.id)), 0)
+	}
+
+	deselectSong(songID: number) {
+		if (this.selections[songID]) {
+			this.selections[songID] = false
+			this.selectionChangedCallbacks[songID](false)
+		}
+	}
+
+	selectSong(songID: number) {
+		if (!this.selections[songID]) {
+			this.selections[songID] = true
+			this.selectionChangedCallbacks[songID](true)
+		}
+	}
+}

src-angular/app/core/services/settings.service.ts

@@ -0,0 +1,82 @@
+import { Injectable } from '@angular/core'
+
+import { Settings } from 'src/electron/shared/Settings'
+import { ElectronService } from './electron.service'
+
+@Injectable({
+	providedIn: 'root',
+})
+export class SettingsService {
+	readonly builtinThemes = ['Default', 'Dark']
+
+	private settings: Settings
+	private currentThemeLink: HTMLLinkElement
+
+	constructor(private electronService: ElectronService) { }
+
+	async loadSettings() {
+		this.settings = await this.electronService.invoke('get-settings', undefined)
+		if (this.settings.theme != this.builtinThemes[0]) {
+			this.changeTheme(this.settings.theme)
+		}
+	}
+
+	saveSettings() {
+		this.electronService.sendIPC('set-settings', this.settings)
+	}
+
+	changeTheme(theme: string) {
+		if (this.currentThemeLink != undefined) this.currentThemeLink.remove()
+		if (theme == 'Default') { return }
+
+		const link = document.createElement('link')
+		link.type = 'text/css'
+		link.rel = 'stylesheet'
+		link.href = `./assets/themes/${theme.toLowerCase()}.css`
+		this.currentThemeLink = document.head.appendChild(link)
+	}
+
+	async getCacheSize() {
+		return this.electronService.defaultSession.getCacheSize()
+	}
+
+	async clearCache() {
+		this.saveSettings()
+		await this.electronService.defaultSession.clearCache()
+		await this.electronService.invoke('clear-cache', undefined)
+	}
+
+	// Individual getters/setters
+	get libraryDirectory() {
+		return this.settings.libraryPath
+	}
+	set libraryDirectory(newValue: string) {
+		this.settings.libraryPath = newValue
+		this.saveSettings()
+	}
+
+	get downloadVideos() {
+		return this.settings.downloadVideos
+	}
+	set downloadVideos(isChecked) {
+		this.settings.downloadVideos = isChecked
+		this.saveSettings()
+	}
+
+	get theme() {
+		return this.settings.theme
+	}
+	set theme(newValue: string) {
+		this.settings.theme = newValue
+		this.changeTheme(newValue)
+		this.saveSettings()
+	}
+
+	get rateLimitDelay() {
+		return this.settings.rateLimitDelay
+	}
+	set rateLimitDelay(delay: number) {
+		this.settings.rateLimitDelay = delay
+		this.saveSettings()
+	}
+}

src-angular/app/core/tab-persist.strategy.ts

@@ -0,0 +1,29 @@
+import { Injectable } from '@angular/core'
+import { ActivatedRouteSnapshot, DetachedRouteHandle, RouteReuseStrategy } from '@angular/router'
+
+/**
+ * This makes each route with the 'reuse' data flag persist when not in focus.
+ */
+@Injectable()
+export class TabPersistStrategy extends RouteReuseStrategy {
+	private handles: { [path: string]: DetachedRouteHandle } = {}
+
+	shouldDetach(route: ActivatedRouteSnapshot) {
+		return route.data.shouldReuse || false
+	}
+	store(route: ActivatedRouteSnapshot, handle: DetachedRouteHandle) {
+		if (route.data.shouldReuse) {
+			this.handles[route.routeConfig.path] = handle
+		}
+	}
+	shouldAttach(route: ActivatedRouteSnapshot) {
+		return !!route.routeConfig && !!this.handles[route.routeConfig.path]
+	}
+	retrieve(route: ActivatedRouteSnapshot) {
+		if (!route.routeConfig) return null
+		return this.handles[route.routeConfig.path]
+	}
+	shouldReuseRoute(future: ActivatedRouteSnapshot) {
+		return future.data.shouldReuse || false
+	}
+}