270 lines
13 KiB
JavaScript
270 lines
13 KiB
JavaScript
//META{"name":"ImageZoom","website":"https://github.com/mwittrien/BetterDiscordAddons/tree/master/Plugins/ImageZoom","source":"https://raw.githubusercontent.com/mwittrien/BetterDiscordAddons/master/Plugins/ImageZoom/ImageZoom.plugin.js"}*//
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class ImageZoom {
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getName () {return "ImageZoom";}
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getVersion () {return "1.0.2";}
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getAuthor () {return "DevilBro";}
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getDescription () {return "Allows you to zoom in opened Images by holding left clicking on them in the Image Modal.";}
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initConstructor () {
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this.changelog = {
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"fixed":[["Lense","Fixed the issue where the lesen wouldn't properly clip the zoomed image"]]
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};
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this.patchModules = {
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"ImageModal":["componentDidMount","componentWillUnmount"],
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"Icon":["componentDidMount","componentWillUnmount"],
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}
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this.zoomSettingsContextMarkup =
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`<div class="${BDFDB.disCN.contextmenu} imagezoom-contextmenu">
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<div class="${BDFDB.disCN.contextmenuitemgroup}">
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<div class="${BDFDB.disCN.contextmenuitem} zoomlevel-item ${BDFDB.disCN.contextmenuitemslider}">
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<div class="${BDFDB.disCN.contextmenulabel}"></div>
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<div class="${BDFDB.disCNS.contextmenuslider + BDFDB.disCNS.slider + BDFDB.disCN.slidermini}" type="zoomlevel">
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<input type="number" class="${BDFDB.disCN.sliderinput}" readonly="" value="">
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<div class="${BDFDB.disCN.slidertrack}"></div>
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<div class="${BDFDB.disCN.sliderbar}">
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<div class="${BDFDB.disCN.sliderbarfill}"></div>
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</div>
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<div class="${BDFDB.disCN.slidertrack}">
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<div class="${BDFDB.disCN.slidergrabber}"></div>
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</div>
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</div>
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</div>
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<div class="${BDFDB.disCN.contextmenuitem} lensesize-item ${BDFDB.disCN.contextmenuitemslider}">
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<div class="${BDFDB.disCN.contextmenulabel}"></div>
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<div class="${BDFDB.disCNS.contextmenuslider + BDFDB.disCNS.slider + BDFDB.disCN.slidermini}" type="lensesize">
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<input type="number" class="${BDFDB.disCN.sliderinput}" readonly="" value="">
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<div class="${BDFDB.disCN.slidertrack}"></div>
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<div class="${BDFDB.disCN.sliderbar}">
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<div class="${BDFDB.disCN.sliderbarfill}"></div>
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</div>
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<div class="${BDFDB.disCN.slidertrack}">
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<div class="${BDFDB.disCN.slidergrabber}"></div>
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</div>
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</div>
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</div>
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</div>
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</div>`;
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this.css = `
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.imagezoom-lense {
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border: 2px solid rgb(114, 137, 218);
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}
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.imagezoom-backdrop {
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position: absolute !important;
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top: 0 !important;
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right: 0 !important;
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bottom: 0 !important;
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left: 0 !important;
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z-index: 8000 !important;
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}`;
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this.defaults = {
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settings: {
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zoomlevel: {value:2, digits:1, min:1, max:10, unit:"x", name:"Zoom Level"},
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lensesize: {value:200, digits:0, min:50, max:1000, unit:"px", name:"Lense Size"}
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}
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};
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}
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//legacy
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load () {}
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start () {
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if (!global.BDFDB) global.BDFDB = {myPlugins:{}};
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if (global.BDFDB && global.BDFDB.myPlugins && typeof global.BDFDB.myPlugins == "object") global.BDFDB.myPlugins[this.getName()] = this;
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var libraryScript = document.querySelector('head script#BDFDBLibraryScript');
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if (!libraryScript || (performance.now() - libraryScript.getAttribute("date")) > 600000) {
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if (libraryScript) libraryScript.remove();
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libraryScript = document.createElement("script");
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libraryScript.setAttribute("id", "BDFDBLibraryScript");
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libraryScript.setAttribute("type", "text/javascript");
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libraryScript.setAttribute("src", "https://mwittrien.github.io/BetterDiscordAddons/Plugins/BDFDB.js");
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libraryScript.setAttribute("date", performance.now());
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libraryScript.addEventListener("load", () => {this.initialize();});
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document.head.appendChild(libraryScript);
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this.libLoadTimeout = setTimeout(() => {
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libraryScript.remove();
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require("request")("https://mwittrien.github.io/BetterDiscordAddons/Plugins/BDFDB.js", (error, response, body) => {
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if (body) {
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libraryScript = document.createElement("script");
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libraryScript.setAttribute("id", "BDFDBLibraryScript");
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libraryScript.setAttribute("type", "text/javascript");
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libraryScript.setAttribute("date", performance.now());
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libraryScript.innerText = body;
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document.head.appendChild(libraryScript);
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}
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this.initialize();
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});
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}, 15000);
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}
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else if (global.BDFDB && typeof BDFDB === "object" && BDFDB.loaded) this.initialize();
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this.startTimeout = setTimeout(() => {this.initialize();}, 30000);
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}
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initialize () {
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if (global.BDFDB && typeof BDFDB === "object" && BDFDB.loaded) {
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if (this.started) return;
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BDFDB.loadMessage(this);
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BDFDB.WebModules.forceAllUpdates(this);
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}
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else {
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console.error(`%c[${this.getName()}]%c`, 'color: #3a71c1; font-weight: 700;', '', 'Fatal Error: Could not load BD functions!');
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}
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}
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stop () {
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if (global.BDFDB && typeof BDFDB === "object" && BDFDB.loaded) {
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for (let img of document.querySelectorAll(BDFDB.dotCNS.imagewrapper + "img")) if (img.ImageZoomMouseDownListener) {
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img.removeEventListener("mousedown", img.ImageZoomMouseDownListener);
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delete img.ImageZoomMouseDownListener;
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img.removeAttribute("draggable");
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}
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BDFDB.removeEles(".imagezoom-contextmenu", ".imagezoom-separator", ".imagezoom-settings", ".imagezoom-lense", ".imagezoom-backdrop");
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BDFDB.unloadMessage(this);
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}
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}
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// begin of own functions
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processImageModal (instance, wrapper, methodnames) {
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if (methodnames.includes("componentDidMount")) {
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let modal = BDFDB.getParentEle(BDFDB.dotCN.modal, wrapper);
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if (!modal) return;
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let inner = modal.querySelector(BDFDB.dotCN.modalinner);
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if (!inner) return;
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let start = performance.now();
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let waitForImg = setInterval(() => {
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let img = modal.querySelector(BDFDB.dotCNS.imagewrapper + "img," + BDFDB.dotCNS.imagewrapper + "video");
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if (img && img.src && !BDFDB.containsClass(img, BDFDB.disCN.imageplaceholder)) {
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clearInterval(waitForImg);
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img.setAttribute("draggable", "false");
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inner.firstElementChild.appendChild(BDFDB.htmlToElement(`<span class="${BDFDB.disCN.downloadlink} imagezoom-separator" style="margin: 0px 5px;"> | </div>`));
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let settingslink = BDFDB.htmlToElement(`<span class="${BDFDB.disCN.downloadlink} imagezoom-settings">Zoom ${BDFDB.LanguageStrings.SETTINGS}</div>`);
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inner.firstElementChild.appendChild(settingslink);
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let openContext = e => {
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let settings = BDFDB.getAllData(this, "settings");
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let zoomSettingsContext = BDFDB.htmlToElement(this.zoomSettingsContextMarkup);
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for (let slideritem of zoomSettingsContext.querySelectorAll(BDFDB.dotCN.contextmenuitemslider)) {
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let slider = slideritem.querySelector(BDFDB.dotCN.contextmenuslider);
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let type = slider.getAttribute("type");
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let value = settings[type];
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let percent = BDFDB.mapRange([this.defaults.settings[type].min, this.defaults.settings[type].max], [0, 100], value);
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let grabber = slider.querySelector(BDFDB.dotCN.slidergrabber);
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grabber.style.setProperty("left", percent + "%");
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grabber.addEventListener("mousedown", e => {this.dragSlider(slider, value, e);});
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slider.querySelector(BDFDB.dotCN.sliderbarfill).style.setProperty("width", percent + "%");
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slider.querySelector(BDFDB.dotCN.sliderinput).value = value;
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slider.previousSibling.innerText = this.defaults.settings[type].name + ": " + value + this.defaults.settings[type].unit;
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}
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let zoomlevelitem = zoomSettingsContext.querySelector(".zoomlevel-item");
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let lensesizeitem = zoomSettingsContext.querySelector(".lensesize-item");
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BDFDB.appendContextMenu(zoomSettingsContext, e);
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};
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settingslink.addEventListener("click", openContext);
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settingslink.addEventListener("contextmenu", openContext);
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img.ImageZoomMouseDownListener = e => {
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BDFDB.stopEvent(e);
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BDFDB.appendLocalStyle("ImageZoomCrossHair", "* {cursor: crosshair !important;}");
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let imgrects = BDFDB.getRects(img);
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let settings = BDFDB.getAllData(this, "settings");
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let lense = BDFDB.htmlToElement(`<div class="imagezoom-lense" style="clip-path: circle(${(settings.lensesize/2) + 2}px at center) !important; border-radius: 50% !important; pointer-events: none !important; z-index: 10000 !important; width: ${settings.lensesize}px !important; height: ${settings.lensesize}px !important; position: fixed !important;"><div class="imagezoom-lense-inner" style="position: absolute !important; top: 0 !important; right: 0 !important; bottom: 0 !important; left: 0 !important; clip-path: circle(${settings.lensesize/2}px at center) !important;"><${img.tagName} class="imagezoom-pane" src="${img.src}" style="width: ${imgrects.width * settings.zoomlevel}px; height: ${imgrects.height * settings.zoomlevel}px; position: fixed !important;"${img.tagName == "VIDEO" ? " loop autoplay" : ""}></${img.tagName}></div></div>`);
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let pane = lense.querySelector(".imagezoom-pane");
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let backdrop = BDFDB.htmlToElement(`<div class="imagezoom-backdrop" style="background: rgba(0,0,0,0.2) !important;"></div>`);
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document.querySelector(BDFDB.dotCN.appmount).appendChild(lense);
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document.querySelector(BDFDB.dotCN.appmount).appendChild(backdrop);
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let lenserects = BDFDB.getRects(lense), panerects = BDFDB.getRects(pane);
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let halfW = lenserects.width / 2, halfH = lenserects.height / 2;
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let minX = imgrects.left, maxX = minX + imgrects.width;
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let minY = imgrects.top, maxY = minY + imgrects.height;
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lense.style.setProperty("left", e.clientX - halfW + "px", "important");
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lense.style.setProperty("top", e.clientY - halfH + "px", "important");
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pane.style.setProperty("left", imgrects.left + ((settings.zoomlevel - 1) * (imgrects.left - e.clientX)) + "px", "important");
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pane.style.setProperty("top", imgrects.top + ((settings.zoomlevel - 1) * (imgrects.top - e.clientY)) + "px", "important");
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let dragging = e2 => {
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let x = e2.clientX > maxX ? maxX - halfW : e2.clientX < minX ? minX - halfW : e2.clientX - halfW;
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let y = e2.clientY > maxY ? maxY - halfH : e2.clientY < minY ? minY - halfH : e2.clientY - halfH;
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lense.style.setProperty("left", x + "px", "important");
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lense.style.setProperty("top", y + "px", "important");
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pane.style.setProperty("left", imgrects.left + ((settings.zoomlevel - 1) * (imgrects.left - x - halfW)) + "px", "important");
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pane.style.setProperty("top", imgrects.top + ((settings.zoomlevel - 1) * (imgrects.top - y - halfH)) + "px", "important");
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};
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let releasing = e2 => {
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BDFDB.removeLocalStyle('ImageZoomCrossHair');
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document.removeEventListener("mousemove", dragging);
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document.removeEventListener("mouseup", releasing);
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BDFDB.removeEles(lense, backdrop);
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};
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document.addEventListener("mousemove", dragging);
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document.addEventListener("mouseup", releasing);
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};
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img.addEventListener("mousedown", img.ImageZoomMouseDownListener);
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}
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else if (performance.now() - start > 10000) {
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clearInterval(waitForImg);
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}
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}, 100);
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}
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else if (methodnames.includes("componentWillUnmount")) {
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BDFDB.removeEles(".imagezoom-contextmenu", ".imagezoom-separator", ".imagezoom-settings", ".imagezoom-lense", ".imagezoom-backdrop");
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}
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}
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dragSlider (slider, value, e) {
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var grabber = e.currentTarget;
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var track = grabber.parentNode;
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var slider = track.parentNode;
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var input = slider.querySelector(BDFDB.dotCN.sliderinput);
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var barfill = slider.querySelector(BDFDB.dotCN.sliderbarfill);
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var type = slider.getAttribute("type");
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BDFDB.appendLocalStyle("disableTextSelection", `*{user-select: none !important;}`);
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var sY = 0;
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var sHalfW = BDFDB.getRects(grabber).width/2;
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var sMinX = BDFDB.getRects(track).left;
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var sMaxX = sMinX + BDFDB.getRects(track).width;
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var bubble = BDFDB.htmlToElement(`<span class="${BDFDB.disCN.sliderbubble}">${value + this.defaults.settings[type].unit}</span>`);
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grabber.appendChild(bubble);
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var mouseup = () => {
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document.removeEventListener("mouseup", mouseup);
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document.removeEventListener("mousemove", mousemove);
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BDFDB.removeEles(bubble);
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BDFDB.removeLocalStyle("disableTextSelection");
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BDFDB.saveData(type, value, this, "settings");
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slider.previousSibling.innerText = this.defaults.settings[type].name + ": " + value + this.defaults.settings[type].unit;
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};
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var mousemove = e2 => {
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sY = e2.clientX > sMaxX ? sMaxX - sHalfW : (e2.clientX < sMinX ? sMinX - sHalfW : e2.clientX - sHalfW);
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value = parseInt(BDFDB.mapRange([sMinX - sHalfW, sMaxX - sHalfW], [this.defaults.settings[type].min, this.defaults.settings[type].max], sY)*Math.pow(10, this.defaults.settings[type].digits))/Math.pow(10, this.defaults.settings[type].digits);
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let percent = BDFDB.mapRange([sMinX - sHalfW, sMaxX - sHalfW], [0, 100], sY);
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grabber.style.setProperty("left", percent + "%");
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barfill.style.setProperty("width", percent + "%");
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input.value = value;
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bubble.innerText = value + this.defaults.settings[type].unit;
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};
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document.addEventListener("mouseup", mouseup);
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document.addEventListener("mousemove", mousemove);
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}
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updateSlider () {
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var sY = 0;
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var sHalfW = BDFDB.getRects(grabber).width/2;
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var sMinX = BDFDB.getRects(track).left;
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var sMaxX = sMinX + BDFDB.getRects(track).width;
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}
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}
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