Files

213 lines
9.3 KiB
JavaScript

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