657 lines
18 KiB
Vue
657 lines
18 KiB
Vue
<template>
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<div class="svg-content">
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<div :class="['loading-screen', { loaded: loadedPercent === 100 }]">
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<div :style="{ width: `${loadedPercent}%` }" class="loading-bar"></div>
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</div>
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<div class="content" ref="root">
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<div class="video-scrolls">
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<VideoScroll
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v-for="scroll in scrolls"
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:definition="scroll"
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:key="scroll.id"
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/>
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</div>
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</div>
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<AudioArea
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v-for="audio in audioAreas"
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:definition="audio"
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:bbox="bbox"
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:key="audio.id"
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/>
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<div class="dev devpanel">
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<div>
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<span>Current viewport position:</span>
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<span>{{ Math.round(bbox.x) }}x{{ Math.round(bbox.y) }}</span>
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</div>
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<div>
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<span>Current cursor position:</span>
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<span
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>{{ Math.round(mousePosition.x) }}x{{
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Math.round(mousePosition.y)
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}}</span
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>
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</div>
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<div>
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<span>Zoom level:</span
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><span>{{ Math.round(bbox.z * 1000) / 1000 }}</span>
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</div>
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<label>
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<input v-model="showInternal" type="checkbox" />
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<label>Show internal elements</label>
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</label>
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</div>
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</div>
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</template>
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<script lang="ts">
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import { defineComponent, onMounted, reactive, ref } from "vue";
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import createPanZoom, { PanZoom } from "panzoom";
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import VideoScroll, {
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VideoScrollDef,
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VideoScrollDirection,
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} from "@/components/VideoScroll.vue";
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import AudioArea, { AudioAreaDef } from "@/components/AudioArea.vue";
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import Stats from "stats.js";
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import { rotate } from "@/utils";
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import fetchProgress from "fetch-progress";
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export interface BoundingBox {
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x: number;
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y: number;
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w: number;
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h: number;
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z: number;
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}
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export default defineComponent({
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name: "SVGContent",
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components: { AudioArea, VideoScroll },
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props: {
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url: {
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type: String,
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required: true,
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},
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},
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data() {
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return {
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showInternal: false,
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};
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},
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watch: {
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showInternal(value) {
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Array.from(this.root!.getElementsByClassName("internal")).forEach(
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(el) => {
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(el as SVGElement).style.visibility = value ? "visible" : "hidden";
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}
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);
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},
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},
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setup(props, { emit }) {
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const root = ref<HTMLDivElement | null>(null);
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const loadedPercent = ref(0);
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const panzoom = ref<null | PanZoom>(null);
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const anchors = ref<SVGRectElement[]>([]);
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const scrolls = ref<VideoScrollDef[]>([]);
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const panToAnchor = ref();
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const audioAreas = ref<AudioAreaDef[]>([]);
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const bbox: BoundingBox = reactive({
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x: ref(0),
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y: ref(0),
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w: ref(0),
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h: ref(0),
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z: ref(1),
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});
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const mousePosition = reactive({
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x: ref(0),
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y: ref(0),
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});
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const panning = ref(false);
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onMounted(async () => {
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const element = (root.value as unknown) as HTMLDivElement;
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console.info("[SVG] Initializing.");
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// Fetch & load SVG
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console.info(`[SVG] Fetching "${props.url}..."`);
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const fetchResult = await fetch(props.url).then(
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fetchProgress({
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onProgress(progress) {
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loadedPercent.value = (progress as any).percentage;
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},
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})
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);
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const svgParsed = new DOMParser().parseFromString(
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await fetchResult.text(),
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"image/svg+xml"
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) as Document;
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console.debug("[SVG] Loaded.");
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loadedPercent.value = 100;
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const svg = element.appendChild(
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svgParsed.firstElementChild as Element
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) as any;
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// Set document background
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const pageColor = svg
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.getElementById("base")
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?.attributes.getNamedItem("pagecolor");
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if (pageColor) {
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console.debug(`[SVG] Found pageColor attribute: ${pageColor.value}`);
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emit("setBackground", pageColor.value);
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}
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// PanZoom
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const pz = createPanZoom(element, {
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smoothScroll: false,
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minZoom: 0.05,
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maxZoom: 3637937,
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zoomSpeed: 0.05,
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zoomDoubleClickSpeed: 1,
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beforeMouseDown: () => {
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return panning.value;
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},
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beforeWheel: () => {
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return panning.value;
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},
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onDoubleClick: () => {
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if (!document.fullscreenElement) {
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console.debug("[SVG] Fullscreen requested.");
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document.body.requestFullscreen();
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} else {
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console.debug("[SVG] Fullscreen exited.");
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document.exitFullscreen();
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}
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return true;
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},
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});
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panzoom.value = pz;
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// Calculate SVG-unit bounding box, update transform
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pz.on("transform", function (_) {
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const transform = pz.getTransform();
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const currentRatio =
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(svg.clientWidth * transform.scale) / svg.viewBox.baseVal.width;
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bbox.x = (transform.x / currentRatio) * -1;
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bbox.y = (transform.y / currentRatio) * -1;
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bbox.w = window.innerWidth / currentRatio;
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bbox.h = window.innerHeight / currentRatio;
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bbox.z = transform.scale;
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window.location.hash = `${Math.round(bbox.x + bbox.w / 2)},${Math.round(
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bbox.y + bbox.h / 2
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)},${Math.round(transform.scale * 1000) / 1000}z`;
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});
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function panToElement(target: SVGRectElement, smooth: boolean) {
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console.debug(`[SVG] Panning to element: #${target.id}`);
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const transform = pz.getTransform();
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const currentRatio =
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(svg.clientWidth * transform.scale) / svg.viewBox.baseVal.width;
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const ratio = svg.clientWidth / svg.viewBox.baseVal.width;
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const targetScale =
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window.innerWidth / (target.width.baseVal.value * ratio);
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const svgTargetX =
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(target.x.baseVal.value + target.width.baseVal.value / 2) *
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currentRatio;
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const svgTargetY =
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(target.y.baseVal.value + target.height.baseVal.value / 2) *
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currentRatio;
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if (smooth) {
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panning.value = true;
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pz.smoothMoveTo(
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svgTargetX * -1 + window.innerWidth / 2,
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svgTargetY * -1 + window.innerHeight / 2
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);
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setTimeout(() => {
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const finalTransform = pz.getTransform();
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pz.smoothZoomAbs(
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svgTargetX + finalTransform.x,
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svgTargetY + finalTransform.y,
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targetScale
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);
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setTimeout(() => {
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panning.value = false;
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}, 400);
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}, 400 * 4);
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} else {
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pz.moveTo(
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svgTargetX * -1 + window.innerWidth / 2,
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svgTargetY * -1 + window.innerHeight / 2
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);
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pz.zoomAbs(
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window.innerWidth / 2,
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window.innerHeight / 2,
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targetScale
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);
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}
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}
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panToAnchor.value = (anchor: SVGRectElement) => {
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panToElement(anchor, true);
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};
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// Process start element
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const start = processStart(svg);
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if (start) {
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console.info("[SVG] Found start element.");
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window.addEventListener("keydown", (ev) => {
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if (ev.key === " ") {
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panToElement(start, true);
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}
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});
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}
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// Pan to start element or location in hash
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const locationMatch = window.location.href.match(
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/#([\-0-9.]+),([\-0-9.]+),([0-9.]+)z/
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);
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if (locationMatch) {
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console.debug(`[SVGCONTENT] Got a location match: ${locationMatch}`);
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const [_, x, y, z] = locationMatch;
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const transform = pz.getTransform();
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const currentRatio =
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(svg.clientWidth * transform.scale) / svg.viewBox.baseVal.width;
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pz.moveTo(
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parseFloat(x) * currentRatio * -1 + window.innerWidth / 2,
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parseFloat(y) * currentRatio * -1 + window.innerHeight / 2
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);
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pz.zoomAbs(
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window.innerWidth / 2,
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window.innerHeight / 2,
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parseFloat(z)
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);
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} else if (start) {
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console.debug(`[SVGCONTENT] Panning to start anchor.`);
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panToElement(start, false);
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}
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// Anchors
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console.debug("[SVG] Processing anchors.");
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anchors.value = processAnchors(svg);
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console.info(`[SVG] Found ${anchors.value.length} anchors.`);
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// Links
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console.debug("[SVG] Processing hyperlinks.");
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const { anchor, hyper } = processHyperlinks(svg);
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console.info(
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`[SVG] Found ${anchor.length} anchor links and ${hyper.length} hyperlinks.`
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);
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anchor.forEach(([anchorId, element]) => {
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const anchor = anchors.value.find((a) => a.id == anchorId);
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if (!anchor) {
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console.error(`[SVG] Could not find anchor #${anchorId}!`);
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return;
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}
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element.addEventListener("click", () => {
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panToElement(anchor, true);
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});
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});
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// Audio areas
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console.debug("[SVG] Processing audio areas.");
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audioAreas.value = processAudio(svg);
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console.info(`[SVG] Found ${audioAreas.value.length} audio areas.`);
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// Videoscrolls
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console.debug("[SVG] Processing video scrolls.");
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scrolls.value = await processScrolls(svg);
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console.info(`[SVG] Found ${scrolls.value.length} video scrolls.`);
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// Debug Stats
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let stats: Stats | undefined;
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if (window.location.search.includes("debug")) {
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console.info("[SVG] DEBUG mode active, turning on stats & dev panel.");
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stats = new Stats();
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document.body.appendChild(stats.dom);
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Array.from(document.body.getElementsByClassName("dev")).forEach(
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(el) => {
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(el as HTMLElement).style.display = "block";
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}
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);
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}
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// Animations: FPS Counter, Edge scrolling
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let mouse: MouseEvent | undefined;
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window.addEventListener("mousemove", (ev) => {
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mouse = ev;
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const transform = pz.getTransform();
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const currentRatio =
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(svg.clientWidth * transform.scale) / svg.viewBox.baseVal.width;
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mousePosition.x = (mouse.clientX - transform.x) / currentRatio;
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mousePosition.y = (mouse.clientY - transform.y) / currentRatio;
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});
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let gamePadZoomSpeed = 10;
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function animate() {
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if (stats) {
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stats.begin();
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}
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// Edge scrolling
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const MOVE_EDGE_X = window.innerWidth * 0.25;
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const MOVE_EDGE_Y = window.innerHeight * 0.25;
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const MAX_SPEED = 20;
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if (mouse && !panning.value && document.fullscreenElement) {
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let horizontalShift: number;
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let verticalShift: number;
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const transform = pz.getTransform();
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if (
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mouse.clientX < MOVE_EDGE_X ||
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mouse.clientX > window.innerWidth - MOVE_EDGE_X
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) {
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const horizontalEdgeDistance =
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mouse.clientX < window.innerWidth / 2
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? mouse.clientX
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: mouse.clientX - window.innerWidth;
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const horizontalRatio =
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(MOVE_EDGE_X - Math.abs(horizontalEdgeDistance)) / MOVE_EDGE_X;
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const direction = mouse.clientX < MOVE_EDGE_X ? 1 : -1;
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horizontalShift = horizontalRatio * direction * MAX_SPEED;
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} else {
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horizontalShift = 0;
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}
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if (
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mouse.clientY < MOVE_EDGE_Y ||
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mouse.clientY > window.innerHeight - MOVE_EDGE_Y
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) {
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const verticalEdgeDistance =
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mouse.clientY < window.innerHeight / 2
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? mouse.clientY
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: mouse.clientY - window.innerHeight;
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const verticalRatio =
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(MOVE_EDGE_Y - Math.abs(verticalEdgeDistance)) / MOVE_EDGE_Y;
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const direction = mouse.clientY < MOVE_EDGE_Y ? 1 : -1;
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verticalShift = verticalRatio * direction * MAX_SPEED;
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} else {
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verticalShift = 0;
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}
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if (horizontalShift || verticalShift) {
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pz.moveTo(
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transform!.x + horizontalShift,
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transform!.y + verticalShift
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);
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}
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}
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if (navigator.getGamepads) {
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var gamepads = navigator.getGamepads();
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var gp = gamepads[0];
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if (gp) {
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if (gp.buttons[7].pressed) {
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gamePadZoomSpeed += 0.1;
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}
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if (gp.buttons[5].pressed) {
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gamePadZoomSpeed -= 0.1;
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}
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if (gamePadZoomSpeed < 1) {
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gamePadZoomSpeed = 1;
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}
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if (gamePadZoomSpeed > 30) {
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gamePadZoomSpeed = 30;
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}
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const transform = pz.getTransform();
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const horizontalShift = gp.axes[0] * -1 * gamePadZoomSpeed;
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const verticalShift = gp.axes[1] * -1 * gamePadZoomSpeed;
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if (horizontalShift || verticalShift) {
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pz.moveTo(
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transform!.x + horizontalShift,
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transform!.y + verticalShift
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);
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}
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}
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}
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if (stats) {
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stats.end();
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}
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requestAnimationFrame(animate);
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}
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requestAnimationFrame(animate);
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});
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return {
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root,
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loadedPercent,
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panzoom,
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anchors,
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panToAnchor,
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scrolls,
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audioAreas,
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bbox,
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mousePosition,
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};
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},
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});
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function processAnchors(document: XMLDocument): SVGRectElement[] {
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const result: SVGRectElement[] = [];
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Array.from(document.getElementsByTagName("rect"))
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.filter((el) => el.id.startsWith("anchor"))
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.forEach((anchor) => {
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console.debug(`[SVG/ANCHORS] Found anchor #${anchor.id}.`);
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anchor.classList.add("internal");
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result.push(anchor);
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});
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return result;
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}
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async function processScrolls(svg: XMLDocument): Promise<VideoScrollDef[]> {
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const ratio = (svg as any).clientWidth / (svg as any).viewBox.baseVal.width;
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return Promise.all(
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Array.from(svg.getElementsByTagName("image"))
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.filter((el) =>
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Array.from(el.children).some((el) => el.tagName == "desc")
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)
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.map(async (el) => {
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const descNode = Array.from(el.children).find(
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(el) => el.tagName == "desc"
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);
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console.debug(
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`[SVG/VIDEOSCROLLS] Found video scroll #${el.id}: ${descNode?.textContent}`
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);
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const [directionString, filesURL] = descNode!.textContent!.split("\n");
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const directions: VideoScrollDirection[] = directionString
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.split(" ")
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.map((direction) => {
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if (
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!Object.values(VideoScrollDirection).includes(
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direction as VideoScrollDirection
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)
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) {
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console.error(
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`Unknown direction definition: "${direction}" (in #${el.id})`
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);
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return false;
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}
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return direction as VideoScrollDirection;
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})
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.filter((d) => Boolean(d)) as VideoScrollDirection[];
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console.debug(`[SVG/VIDEOSCROLLS] Fetching ${filesURL}...`);
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const fileFetch = await fetch(`content/${filesURL}`);
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const preURL = fileFetch.url.replace(/\/files.lst$/, "");
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const files = (await fileFetch.text())
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.split("\n")
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.filter(Boolean)
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.map((str) => `${preURL}/${str}`);
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let x = el.x.baseVal.value;
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let y = el.y.baseVal.value;
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let w = el.width.baseVal.value;
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let h = el.height.baseVal.value;
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let angle = 0;
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const transform = el.attributes.getNamedItem("transform");
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const rotateResult = /rotate\((-?[0-9.]+)\)/.exec(
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transform?.value || ""
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);
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if (rotateResult) {
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angle = parseFloat(rotateResult[1]);
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const [ncx, ncy] = rotate(x + w / 2, y + h / 2, 0, 0, angle);
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x = ncx - w / 2;
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y = ncy - h / 2;
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}
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return {
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id: el.id,
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top: y * ratio,
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left: x * ratio,
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angle,
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width: w * ratio,
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height: h * ratio,
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directions,
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files,
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};
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})
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);
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}
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function processAudio(svg: XMLDocument): AudioAreaDef[] {
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const circles: (SVGCircleElement | SVGEllipseElement)[] = Array.from(
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svg.getElementsByTagName("circle")
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);
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const ellipses: (SVGCircleElement | SVGEllipseElement)[] = Array.from(
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svg.getElementsByTagName("ellipse")
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);
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return circles
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.concat(ellipses)
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.filter((el) => Array.from(el.children).some((el) => el.tagName == "desc"))
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.map((el) => {
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const descNode = Array.from(el.children).find(
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(el) => el.tagName == "desc"
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);
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console.debug(
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`[SVG/AUDIOAREAS] Found audio area #${el.id}: ${descNode?.textContent}`
|
|
);
|
|
const audioSrc = descNode!.textContent!.trim();
|
|
|
|
const radius = el.hasAttribute("r")
|
|
? (el as SVGCircleElement).r.baseVal.value
|
|
: ((el as SVGEllipseElement).rx.baseVal.value +
|
|
(el as SVGEllipseElement).ry.baseVal.value) /
|
|
2;
|
|
|
|
el.classList.add("internal");
|
|
|
|
return {
|
|
id: el.id,
|
|
cx: el.cx.baseVal.value,
|
|
cy: el.cy.baseVal.value,
|
|
radius,
|
|
src: `content/${audioSrc}`,
|
|
};
|
|
});
|
|
}
|
|
|
|
function processHyperlinks(
|
|
svg: XMLDocument
|
|
): { anchor: [string, SVGAElement][]; hyper: SVGAElement[] } {
|
|
const anchor: [string, SVGAElement][] = [];
|
|
const hyper: SVGAElement[] = [];
|
|
Array.from(svg.getElementsByTagName("a")).forEach((el) => {
|
|
if (el.getAttribute("xlink:href")?.startsWith("anchor")) {
|
|
anchor.push([
|
|
el.getAttribute("xlink:href") as string,
|
|
(el as unknown) as SVGAElement,
|
|
]);
|
|
el.setAttribute("xlink:href", "#");
|
|
} else {
|
|
el.setAttribute("target", "_blank");
|
|
hyper.push((el as unknown) as SVGAElement);
|
|
}
|
|
});
|
|
return { anchor, hyper };
|
|
}
|
|
|
|
function processStart(svg: XMLDocument): SVGRectElement | null {
|
|
const start = svg.getElementById("start");
|
|
if (start) {
|
|
start.classList.add("internal");
|
|
}
|
|
return start as SVGRectElement | null;
|
|
}
|
|
</script>
|
|
|
|
<!-- Add "scoped" attribute to limit CSS to this component only -->
|
|
<style>
|
|
.svg-content svg {
|
|
overflow: visible;
|
|
}
|
|
|
|
.svg-content svg .internal {
|
|
visibility: hidden;
|
|
}
|
|
|
|
.loading-screen {
|
|
position: fixed;
|
|
top: 0;
|
|
left: 0;
|
|
width: 100vw;
|
|
height: 100vh;
|
|
background: black;
|
|
transition: opacity 0.5s;
|
|
opacity: 1;
|
|
}
|
|
|
|
.loading-screen.loaded {
|
|
opacity: 0 !important;
|
|
}
|
|
|
|
.loading-bar {
|
|
height: 6px;
|
|
background: white;
|
|
margin: calc(50vh - 3px) auto;
|
|
transition: width 0.2s;
|
|
}
|
|
|
|
.dev {
|
|
display: none;
|
|
}
|
|
|
|
.devpanel {
|
|
position: fixed;
|
|
top: 0;
|
|
right: 0;
|
|
z-index: 999;
|
|
|
|
color: white;
|
|
background: #000000aa;
|
|
border: 2px solid white;
|
|
font-family: monospace;
|
|
padding: 1em 2em;
|
|
}
|
|
|
|
.devpanel div {
|
|
display: flex;
|
|
justify-content: space-between;
|
|
}
|
|
|
|
.devpanel label {
|
|
float: right;
|
|
}
|
|
|
|
.devpanel div span {
|
|
margin: 0 0.5em;
|
|
}
|
|
</style>
|