mirror of
https://github.com/ksyasuda/SubMiner.git
synced 2026-03-01 06:22:44 -08:00
chore(main): extract app lifecycle/startup builders into main modules
This commit is contained in:
405
src/core/services/mpv-protocol.ts
Normal file
405
src/core/services/mpv-protocol.ts
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@@ -0,0 +1,405 @@
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import { MpvSubtitleRenderMetrics } from "../../types";
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export type MpvMessage = {
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event?: string;
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name?: string;
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data?: unknown;
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request_id?: number;
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error?: string;
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};
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export const MPV_REQUEST_ID_SUBTEXT = 101;
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export const MPV_REQUEST_ID_PATH = 102;
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export const MPV_REQUEST_ID_SECONDARY_SUBTEXT = 103;
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export const MPV_REQUEST_ID_SECONDARY_SUB_VISIBILITY = 104;
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export const MPV_REQUEST_ID_AID = 105;
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export const MPV_REQUEST_ID_SUB_POS = 106;
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export const MPV_REQUEST_ID_SUB_FONT_SIZE = 107;
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export const MPV_REQUEST_ID_SUB_SCALE = 108;
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export const MPV_REQUEST_ID_SUB_MARGIN_Y = 109;
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export const MPV_REQUEST_ID_SUB_MARGIN_X = 110;
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export const MPV_REQUEST_ID_SUB_FONT = 111;
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export const MPV_REQUEST_ID_SUB_SCALE_BY_WINDOW = 112;
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export const MPV_REQUEST_ID_OSD_HEIGHT = 113;
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export const MPV_REQUEST_ID_OSD_DIMENSIONS = 114;
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export const MPV_REQUEST_ID_SUBTEXT_ASS = 115;
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export const MPV_REQUEST_ID_SUB_SPACING = 116;
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export const MPV_REQUEST_ID_SUB_BOLD = 117;
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export const MPV_REQUEST_ID_SUB_ITALIC = 118;
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export const MPV_REQUEST_ID_SUB_BORDER_SIZE = 119;
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export const MPV_REQUEST_ID_SUB_SHADOW_OFFSET = 120;
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export const MPV_REQUEST_ID_SUB_ASS_OVERRIDE = 121;
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export const MPV_REQUEST_ID_SUB_USE_MARGINS = 122;
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export const MPV_REQUEST_ID_TRACK_LIST_SECONDARY = 200;
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export const MPV_REQUEST_ID_TRACK_LIST_AUDIO = 201;
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export type MpvMessageParser = (message: MpvMessage) => void;
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export type MpvParseErrorHandler = (
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line: string,
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error: unknown,
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) => void;
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export interface MpvProtocolParseResult {
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messages: MpvMessage[];
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nextBuffer: string;
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}
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export interface MpvProtocolHandleMessageDeps {
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getResolvedConfig: () => { secondarySub?: { secondarySubLanguages?: Array<string> } };
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getSubtitleMetrics: () => MpvSubtitleRenderMetrics;
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isVisibleOverlayVisible: () => boolean;
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emitSubtitleChange: (payload: { text: string; isOverlayVisible: boolean }) => void;
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emitSubtitleAssChange: (payload: { text: string }) => void;
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emitSubtitleTiming: (payload: { text: string; start: number; end: number }) => void;
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emitSecondarySubtitleChange: (payload: { text: string }) => void;
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getCurrentSubText: () => string;
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setCurrentSubText: (text: string) => void;
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setCurrentSubStart: (value: number) => void;
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getCurrentSubStart: () => number;
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setCurrentSubEnd: (value: number) => void;
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getCurrentSubEnd: () => number;
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emitMediaPathChange: (payload: { path: string }) => void;
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emitMediaTitleChange: (payload: { title: string | null }) => void;
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emitSubtitleMetricsChange: (payload: Partial<MpvSubtitleRenderMetrics>) => void;
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setCurrentSecondarySubText: (text: string) => void;
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resolvePendingRequest: (requestId: number, message: MpvMessage) => boolean;
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setSecondarySubVisibility: (visible: boolean) => void;
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syncCurrentAudioStreamIndex: () => void;
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setCurrentAudioTrackId: (value: number | null) => void;
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setCurrentTimePos: (value: number) => void;
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getCurrentTimePos: () => number;
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getPendingPauseAtSubEnd: () => boolean;
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setPendingPauseAtSubEnd: (value: boolean) => void;
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getPauseAtTime: () => number | null;
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setPauseAtTime: (value: number | null) => void;
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autoLoadSecondarySubTrack: () => void;
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setCurrentVideoPath: (value: string) => void;
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emitSecondarySubtitleVisibility: (payload: { visible: boolean }) => void;
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setCurrentAudioStreamIndex: (
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tracks: Array<{
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type?: string;
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id?: number;
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selected?: boolean;
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"ff-index"?: number;
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}>,
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) => void;
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sendCommand: (payload: { command: unknown[]; request_id?: number }) => boolean;
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restorePreviousSecondarySubVisibility: () => void;
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}
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export function splitMpvMessagesFromBuffer(
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buffer: string,
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onMessage?: MpvMessageParser,
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onError?: MpvParseErrorHandler,
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): MpvProtocolParseResult {
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const lines = buffer.split("\n");
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const nextBuffer = lines.pop() || "";
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const messages: MpvMessage[] = [];
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for (const line of lines) {
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if (!line.trim()) continue;
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try {
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const message = JSON.parse(line) as MpvMessage;
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messages.push(message);
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if (onMessage) {
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onMessage(message);
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}
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} catch (error) {
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if (onError) {
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onError(line, error);
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}
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}
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}
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return {
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messages,
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nextBuffer,
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};
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}
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export async function dispatchMpvProtocolMessage(
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msg: MpvMessage,
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deps: MpvProtocolHandleMessageDeps,
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): Promise<void> {
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if (msg.event === "property-change") {
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if (msg.name === "sub-text") {
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const nextSubText = (msg.data as string) || "";
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const overlayVisible = deps.isVisibleOverlayVisible();
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deps.emitSubtitleChange({ text: nextSubText, isOverlayVisible: overlayVisible });
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deps.setCurrentSubText(nextSubText);
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} else if (msg.name === "sub-text-ass") {
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deps.emitSubtitleAssChange({ text: (msg.data as string) || "" });
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} else if (msg.name === "sub-start") {
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deps.setCurrentSubStart((msg.data as number) || 0);
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deps.emitSubtitleTiming({
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text: deps.getCurrentSubText(),
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start: deps.getCurrentSubStart(),
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end: deps.getCurrentSubEnd(),
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});
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} else if (msg.name === "sub-end") {
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deps.setCurrentSubEnd((msg.data as number) || 0);
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if (deps.getPendingPauseAtSubEnd() && deps.getCurrentSubEnd() > 0) {
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deps.setPauseAtTime(deps.getCurrentSubEnd());
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deps.setPendingPauseAtSubEnd(false);
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deps.sendCommand({ command: ["set_property", "pause", false] });
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}
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deps.emitSubtitleTiming({
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text: deps.getCurrentSubText(),
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start: deps.getCurrentSubStart(),
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end: deps.getCurrentSubEnd(),
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});
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} else if (msg.name === "secondary-sub-text") {
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const nextSubText = (msg.data as string) || "";
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deps.setCurrentSecondarySubText(nextSubText);
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deps.emitSecondarySubtitleChange({ text: nextSubText });
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} else if (msg.name === "aid") {
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deps.setCurrentAudioTrackId(
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typeof msg.data === "number" ? (msg.data as number) : null,
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);
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deps.syncCurrentAudioStreamIndex();
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} else if (msg.name === "time-pos") {
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deps.setCurrentTimePos((msg.data as number) || 0);
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if (
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deps.getPauseAtTime() !== null &&
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deps.getCurrentTimePos() >= (deps.getPauseAtTime() as number)
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) {
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deps.setPauseAtTime(null);
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deps.sendCommand({ command: ["set_property", "pause", true] });
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}
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} else if (msg.name === "media-title") {
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deps.emitMediaTitleChange({
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title: typeof msg.data === "string" ? msg.data.trim() : null,
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});
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} else if (msg.name === "path") {
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const path = (msg.data as string) || "";
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deps.setCurrentVideoPath(path);
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deps.emitMediaPathChange({ path });
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deps.autoLoadSecondarySubTrack();
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deps.syncCurrentAudioStreamIndex();
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} else if (msg.name === "sub-pos") {
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deps.emitSubtitleMetricsChange({ subPos: msg.data as number });
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} else if (msg.name === "sub-font-size") {
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deps.emitSubtitleMetricsChange({ subFontSize: msg.data as number });
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} else if (msg.name === "sub-scale") {
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deps.emitSubtitleMetricsChange({ subScale: msg.data as number });
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} else if (msg.name === "sub-margin-y") {
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deps.emitSubtitleMetricsChange({ subMarginY: msg.data as number });
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} else if (msg.name === "sub-margin-x") {
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deps.emitSubtitleMetricsChange({ subMarginX: msg.data as number });
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} else if (msg.name === "sub-font") {
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deps.emitSubtitleMetricsChange({ subFont: msg.data as string });
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} else if (msg.name === "sub-spacing") {
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deps.emitSubtitleMetricsChange({ subSpacing: msg.data as number });
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} else if (msg.name === "sub-bold") {
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deps.emitSubtitleMetricsChange({
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subBold: asBoolean(msg.data, deps.getSubtitleMetrics().subBold),
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});
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} else if (msg.name === "sub-italic") {
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deps.emitSubtitleMetricsChange({
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subItalic: asBoolean(msg.data, deps.getSubtitleMetrics().subItalic),
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});
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} else if (msg.name === "sub-border-size") {
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deps.emitSubtitleMetricsChange({ subBorderSize: msg.data as number });
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} else if (msg.name === "sub-shadow-offset") {
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deps.emitSubtitleMetricsChange({ subShadowOffset: msg.data as number });
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} else if (msg.name === "sub-ass-override") {
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deps.emitSubtitleMetricsChange({ subAssOverride: msg.data as string });
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} else if (msg.name === "sub-scale-by-window") {
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deps.emitSubtitleMetricsChange({
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subScaleByWindow: asBoolean(
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msg.data,
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deps.getSubtitleMetrics().subScaleByWindow,
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),
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});
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} else if (msg.name === "sub-use-margins") {
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deps.emitSubtitleMetricsChange({
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subUseMargins: asBoolean(
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msg.data,
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deps.getSubtitleMetrics().subUseMargins,
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),
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});
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} else if (msg.name === "osd-height") {
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deps.emitSubtitleMetricsChange({ osdHeight: msg.data as number });
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} else if (msg.name === "osd-dimensions") {
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const dims = msg.data as Record<string, unknown> | null;
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if (!dims) {
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deps.emitSubtitleMetricsChange({ osdDimensions: null });
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} else {
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deps.emitSubtitleMetricsChange({
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osdDimensions: {
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w: asFiniteNumber(dims.w, 0),
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h: asFiniteNumber(dims.h, 0),
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ml: asFiniteNumber(dims.ml, 0),
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mr: asFiniteNumber(dims.mr, 0),
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mt: asFiniteNumber(dims.mt, 0),
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mb: asFiniteNumber(dims.mb, 0),
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},
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});
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}
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}
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} else if (msg.event === "shutdown") {
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deps.restorePreviousSecondarySubVisibility();
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} else if (msg.request_id) {
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if (deps.resolvePendingRequest(msg.request_id, msg)) {
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return;
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}
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if (msg.data === undefined) {
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return;
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}
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if (msg.request_id === MPV_REQUEST_ID_TRACK_LIST_SECONDARY) {
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const tracks = msg.data as Array<{
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type: string;
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lang?: string;
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id: number;
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}>;
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if (Array.isArray(tracks)) {
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const config = deps.getResolvedConfig();
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const languages = config.secondarySub?.secondarySubLanguages || [];
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const subTracks = tracks.filter((track) => track.type === "sub");
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for (const language of languages) {
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const match = subTracks.find((track) => track.lang === language);
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if (match) {
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deps.sendCommand({
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command: ["set_property", "secondary-sid", match.id],
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});
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break;
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}
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}
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}
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} else if (msg.request_id === MPV_REQUEST_ID_TRACK_LIST_AUDIO) {
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deps.setCurrentAudioStreamIndex(
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msg.data as Array<{
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type?: string;
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id?: number;
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selected?: boolean;
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"ff-index"?: number;
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}>,
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);
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} else if (msg.request_id === MPV_REQUEST_ID_SUBTEXT) {
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const nextSubText = (msg.data as string) || "";
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deps.setCurrentSubText(nextSubText);
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deps.emitSubtitleChange({
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text: nextSubText,
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isOverlayVisible: deps.isVisibleOverlayVisible(),
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});
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} else if (msg.request_id === MPV_REQUEST_ID_SUBTEXT_ASS) {
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deps.emitSubtitleAssChange({ text: (msg.data as string) || "" });
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} else if (msg.request_id === MPV_REQUEST_ID_PATH) {
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deps.emitMediaPathChange({ path: (msg.data as string) || "" });
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} else if (msg.request_id === MPV_REQUEST_ID_AID) {
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deps.setCurrentAudioTrackId(
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typeof msg.data === "number" ? (msg.data as number) : null,
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);
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deps.syncCurrentAudioStreamIndex();
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} else if (msg.request_id === MPV_REQUEST_ID_SECONDARY_SUBTEXT) {
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const nextSubText = (msg.data as string) || "";
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deps.setCurrentSecondarySubText(nextSubText);
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deps.emitSecondarySubtitleChange({ text: nextSubText });
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} else if (msg.request_id === MPV_REQUEST_ID_SECONDARY_SUB_VISIBILITY) {
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const previous = parseVisibilityProperty(msg.data);
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if (previous !== null) {
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deps.emitSecondarySubtitleVisibility({ visible: previous });
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}
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deps.setSecondarySubVisibility(false);
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_POS) {
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deps.emitSubtitleMetricsChange({ subPos: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_FONT_SIZE) {
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deps.emitSubtitleMetricsChange({ subFontSize: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_SCALE) {
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deps.emitSubtitleMetricsChange({ subScale: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_MARGIN_Y) {
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deps.emitSubtitleMetricsChange({ subMarginY: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_MARGIN_X) {
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deps.emitSubtitleMetricsChange({ subMarginX: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_FONT) {
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deps.emitSubtitleMetricsChange({ subFont: msg.data as string });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_SPACING) {
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deps.emitSubtitleMetricsChange({ subSpacing: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_BOLD) {
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deps.emitSubtitleMetricsChange({
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subBold: asBoolean(msg.data, deps.getSubtitleMetrics().subBold),
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});
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_ITALIC) {
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deps.emitSubtitleMetricsChange({
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subItalic: asBoolean(msg.data, deps.getSubtitleMetrics().subItalic),
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});
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_BORDER_SIZE) {
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deps.emitSubtitleMetricsChange({ subBorderSize: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_SHADOW_OFFSET) {
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deps.emitSubtitleMetricsChange({ subShadowOffset: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_ASS_OVERRIDE) {
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deps.emitSubtitleMetricsChange({ subAssOverride: msg.data as string });
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_SCALE_BY_WINDOW) {
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deps.emitSubtitleMetricsChange({
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subScaleByWindow: asBoolean(
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msg.data,
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deps.getSubtitleMetrics().subScaleByWindow,
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),
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});
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} else if (msg.request_id === MPV_REQUEST_ID_SUB_USE_MARGINS) {
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deps.emitSubtitleMetricsChange({
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subUseMargins: asBoolean(
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msg.data,
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deps.getSubtitleMetrics().subUseMargins,
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),
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});
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} else if (msg.request_id === MPV_REQUEST_ID_OSD_HEIGHT) {
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deps.emitSubtitleMetricsChange({ osdHeight: msg.data as number });
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} else if (msg.request_id === MPV_REQUEST_ID_OSD_DIMENSIONS) {
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const dims = msg.data as Record<string, unknown> | null;
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if (!dims) {
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deps.emitSubtitleMetricsChange({ osdDimensions: null });
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} else {
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deps.emitSubtitleMetricsChange({
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osdDimensions: {
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w: asFiniteNumber(dims.w, 0),
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h: asFiniteNumber(dims.h, 0),
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ml: asFiniteNumber(dims.ml, 0),
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mr: asFiniteNumber(dims.mr, 0),
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mt: asFiniteNumber(dims.mt, 0),
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mb: asFiniteNumber(dims.mb, 0),
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},
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});
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}
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}
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}
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}
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export function asBoolean(
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value: unknown,
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fallback: boolean,
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): boolean {
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if (typeof value === "boolean") return value;
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if (typeof value === "number") return value !== 0;
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if (typeof value === "string") {
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const normalized = value.trim().toLowerCase();
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if (["yes", "true", "1"].includes(normalized)) return true;
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if (["no", "false", "0"].includes(normalized)) return false;
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}
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return fallback;
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}
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export function asFiniteNumber(
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value: unknown,
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fallback: number,
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): number {
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const nextValue = Number(value);
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return Number.isFinite(nextValue) ? nextValue : fallback;
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}
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export function parseVisibilityProperty(value: unknown): boolean | null {
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if (typeof value === "boolean") return value;
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if (typeof value !== "string") return null;
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const normalized = value.trim().toLowerCase();
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if (normalized === "yes" || normalized === "true" || normalized === "1") {
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return true;
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}
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if (normalized === "no" || normalized === "false" || normalized === "0") {
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return false;
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}
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return null;
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}
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