213 lines
9.3 KiB
JavaScript
213 lines
9.3 KiB
JavaScript
import { app } from "../../../scripts/app.js";
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import { api } from '../../../scripts/api.js'
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import {chainCallback} from "./utils.js";
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export function addVideoPreview(nodeType) {
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chainCallback(nodeType.prototype, "onNodeCreated", function() {
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var element = document.createElement("div");
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const previewNode = this;
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var previewWidget = this.addDOMWidget("videopreview", "preview", element, {
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serialize: false,
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hideOnZoom: false,
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getValue() {
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return element.value;
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},
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setValue(v) {
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element.value = v;
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},
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});
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previewWidget.computeSize = function(width) {
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if (this.aspectRatio && !this.parentEl.hidden) {
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let height = (previewNode.size[0]-20)/ this.aspectRatio + 10;
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if (!(height > 0)) {
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height = 0;
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}
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this.computedHeight = height + 10;
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return [width, height];
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}
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return [width, -4];//no loaded src, widget should not display
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}
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element.addEventListener('contextmenu', (e) => {
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e.preventDefault()
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return app.canvas._mousedown_callback(e)
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}, true);
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element.addEventListener('pointerdown', (e) => {
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e.preventDefault()
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return app.canvas._mousedown_callback(e)
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}, true);
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element.addEventListener('mousewheel', (e) => {
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e.preventDefault()
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return app.canvas._mousewheel_callback(e)
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}, true);
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previewWidget.value = {hidden: false, paused: false, params: {}}
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previewWidget.parentEl = document.createElement("div");
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previewWidget.parentEl.className = "vhs_preview";
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previewWidget.parentEl.style['width'] = "100%"
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element.appendChild(previewWidget.parentEl);
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previewWidget.videoEl = document.createElement("video");
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previewWidget.videoEl.controls = false;
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previewWidget.videoEl.loop = true;
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previewWidget.videoEl.muted = true;
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previewWidget.videoEl.style['width'] = "100%"
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previewWidget.videoEl.addEventListener("loadedmetadata", () => {
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previewWidget.aspectRatio = previewWidget.videoEl.videoWidth / previewWidget.videoEl.videoHeight;
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fitHeight(this);
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});
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previewWidget.videoEl.addEventListener("error", () => {
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//TODO: consider a way to properly notify the user why a preview isn't shown.
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previewWidget.parentEl.hidden = true;
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fitHeight(this);
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});
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previewWidget.videoEl.onmouseenter = () => {
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previewWidget.videoEl.muted = false;
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};
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previewWidget.videoEl.onmouseleave = () => {
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previewWidget.videoEl.muted = true;
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};
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previewWidget.imgEl = document.createElement("img");
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previewWidget.imgEl.style['width'] = "100%"
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previewWidget.imgEl.hidden = true;
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previewWidget.imgEl.onload = () => {
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previewWidget.aspectRatio = previewWidget.imgEl.naturalWidth / previewWidget.imgEl.naturalHeight;
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fitHeight(this);
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};
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var timeout = null;
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this.updateParameters = (params, force_update) => {
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if (!previewWidget.value.params) {
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if(typeof(previewWidget.value != 'object')) {
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previewWidget.value = {hidden: false, paused: false}
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}
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previewWidget.value.params = {}
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}
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Object.assign(previewWidget.value.params, params)
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timeout = setTimeout(() => previewWidget.updateSource(),100);
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};
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previewWidget.updateSource = function () {
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if (this.value.params == undefined) {
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return;
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}
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let params = {}
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Object.assign(params, this.value.params);//shallow copy
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this.parentEl.hidden = this.value.hidden;
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if (params.format?.split('/')[0] == 'video' ||
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app.ui.settings.getSettingValue("VHS.AdvancedPreviews", false) &&
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(params.format?.split('/')[1] == 'gif') || params.format == 'folder') {
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this.videoEl.autoplay = !this.value.paused && !this.value.hidden;
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let target_width = 256
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if (element.style?.width) {
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//overscale to allow scrolling. Endpoint won't return higher than native
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target_width = element.style.width.slice(0,-2)*2;
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}
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if (!params.force_size || params.force_size.includes("?") || params.force_size == "Disabled") {
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params.force_size = target_width+"x?"
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} else {
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let size = params.force_size.split("x")
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let ar = parseInt(size[0])/parseInt(size[1])
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params.force_size = target_width+"x"+(target_width/ar)
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}
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if (app.ui.settings.getSettingValue("VHS.AdvancedPreviews", false)) {
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this.videoEl.src = api.apiURL('/viewvideo?' + new URLSearchParams(params));
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} else {
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previewWidget.videoEl.src = api.apiURL('/view?' + new URLSearchParams(params));
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}
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this.videoEl.hidden = false;
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this.imgEl.hidden = true;
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} else if (params.format?.split('/')[0] == 'image'){
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//Is animated image
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this.imgEl.src = api.apiURL('/view?' + new URLSearchParams(params));
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this.videoEl.hidden = true;
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this.imgEl.hidden = false;
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}
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}
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previewWidget.parentEl.appendChild(previewWidget.videoEl)
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previewWidget.parentEl.appendChild(previewWidget.imgEl)
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});
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}
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function addPreviewOptions(nodeType) {
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chainCallback(nodeType.prototype, "getExtraMenuOptions", function(_, options) {
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let optNew = []
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const previewWidget = this.widgets.find((w) => w.name === "videopreview");
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let url = null
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if (previewWidget.videoEl?.hidden == false && previewWidget.videoEl.src) {
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url = api.apiURL('/view?' + new URLSearchParams(previewWidget.value.params));
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url = url.replace('%2503d', '001')
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} else if (previewWidget.imgEl?.hidden == false && previewWidget.imgEl.src) {
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url = previewWidget.imgEl.src;
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url = new URL(url);
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}
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if (url) {
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optNew.push(
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{
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content: "Open preview",
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callback: () => {
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window.open(url, "_blank")
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},
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},
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{
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content: "Save preview",
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callback: () => {
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const a = document.createElement("a");
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a.href = url;
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a.setAttribute("download", new URLSearchParams(previewWidget.value.params).get("filename"));
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document.body.append(a);
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a.click();
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requestAnimationFrame(() => a.remove());
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},
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}
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);
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}
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const PauseDesc = (previewWidget.value.paused ? "Resume" : "Pause") + " preview";
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if(previewWidget.videoEl.hidden == false) {
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optNew.push({content: PauseDesc, callback: () => {
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if(previewWidget.value.paused) {
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previewWidget.videoEl?.play();
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} else {
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previewWidget.videoEl?.pause();
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}
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previewWidget.value.paused = !previewWidget.value.paused;
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}});
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}
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//TODO: Consider hiding elements if no video preview is available yet.
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//It would reduce confusion at the cost of functionality
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//(if a video preview lags the computer, the user should be able to hide in advance)
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const visDesc = (previewWidget.value.hidden ? "Show" : "Hide") + " preview";
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optNew.push({content: visDesc, callback: () => {
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if (!previewWidget.videoEl.hidden && !previewWidget.value.hidden) {
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previewWidget.videoEl.pause();
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} else if (previewWidget.value.hidden && !previewWidget.videoEl.hidden && !previewWidget.value.paused) {
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previewWidget.videoEl.play();
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}
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previewWidget.value.hidden = !previewWidget.value.hidden;
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previewWidget.parentEl.hidden = previewWidget.value.hidden;
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fitHeight(this);
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}});
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optNew.push({content: "Sync preview", callback: () => {
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//TODO: address case where videos have varying length
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//Consider a system of sync groups which are opt-in?
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for (let p of document.getElementsByClassName("vhs_preview")) {
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for (let child of p.children) {
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if (child.tagName == "VIDEO") {
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child.currentTime=0;
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} else if (child.tagName == "IMG") {
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child.src = child.src;
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}
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}
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}
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}});
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if(options.length > 0 && options[0] != null && optNew.length > 0) {
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optNew.push(null);
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}
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options.unshift(...optNew);
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});
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}
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export function addLoadVideoCommon(nodeType, nodeData) {
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addVideoPreview(nodeType);
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addPreviewOptions(nodeType);
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}
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