让Google页面中的币值历史走线图可以拨放音乐并显示视觉化 没有任何实际有用的功能
// ==UserScript==
// @name Google Music Visualization
// @name:zh-TW Google 音樂視覺化
// @name:zh-CN Google 音乐视觉化
// @namespace https://github.com/maplelan/Maplelan_Tampermonkey_Script/blob/main/Google%20%E8%A6%96%E8%A6%BA%E5%8C%96.user.js
// @version 1.0
// @description Let Google's currency historical chart in the webpage to play music and display visualizations, unuseful tool.
// @description:zh-TW 讓Google頁面中的幣值歷史走線圖可以撥放音樂並顯示視覺化 沒有任何實際有用的功能
// @description:zh-CN 让Google页面中的币值历史走线图可以拨放音乐并显示视觉化 没有任何实际有用的功能
// @author Maplelan
// @license MIT
// @match https://www.google.com/search?q=*
// @icon https://www.google.com/s2/favicons?sz=64&domain=google.com
// @grant none
// ==/UserScript==
(function() {
setTimeout(()=>{
let svg = document.getElementsByClassName("uch-psvg");
console.log(svg);
for(let i=0;i<svg.length;i++){
let svg_item = svg[i];
let path = svg_item.getElementsByTagName("path");
if(path.length >= 2){
let main_path = path[1];
let vb = svg_item.getAttribute("viewBox").split(" ");
let vb_w = parseFloat(vb[2]),vb_h = parseFloat(vb[3]);
let d = main_path.getAttribute("d");
let L = d.split("L");
let header = {},content = [],end = [];
for(let j=0;j<L.length;j++){
if(L[j].startsWith("M")){
let M = L[j].trim().split(" ");
header.x = parseFloat(M[1]);
header.y = parseFloat(M[2]);
}else{
let C = L[j].trim().split(" ");
let item = {};
item.x = parseFloat(C[0]);
item.y = parseFloat(C[1]);
if(item.x <= vb_w && item.x >= 0){
content.push(item);
}else{
end.push(item);
}
}
}
console.log(d);
let top = svg_item.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode;
let btpos = top.firstChild.firstChild;
let numb_place = top.parentNode.firstChild.firstChild.lastChild.firstChild;
const or_num = parseFloat(numb_place.innerText);
console.log(or_num);
console.log(btpos);
const file = document.createElement('input');
file.type = "file";
file.accept="audio/*";
btpos.append(file);
const audio = document.createElement('audio');
audio.controls = true;;
btpos.append(audio);
const select = document.createElement('select');
select.innerHTML = `<option value="FloatFrequency">FloatFrequency</option>
<option value="FloatTimeDomain">FloatTimeDomain</option>
<option value="ByteFrequency">ByteFrequency</option>
<option value="ByteTimeDomain">ByteTimeDomain</option>`;
btpos.append(select);
let aniID = null;
file.onchange = function() {
console.log("file");
if(aniID != null){
cancelAnimationFrame(aniID);
}
let files = this.files;
audio.src = URL.createObjectURL(files[0]);
audio.load();
audio.play();
let vis_type = "FloatFrequency";
let context = new AudioContext();
let src = context.createMediaElementSource(audio);
let analyser = context.createAnalyser();
src.connect(analyser);
analyser.connect(context.destination);
console.log(select.value);
vis_type = select.value;
switch(vis_type){
case "FloatFrequency":{
analyser.fftSize = 2048;
break;
}
case "ByteFrequency":{
analyser.fftSize = 128;
break;
}
case "FloatTimeDomain":
case "ByteTimeDomain":{
analyser.fftSize = 8192;
break;
}
}
let bufferLength = analyser.frequencyBinCount;
console.log(bufferLength);
let dataArray = new Uint8Array(bufferLength);
switch(vis_type){
case "FloatFrequency":
case "FloatTimeDomain":{
dataArray = new Float32Array(bufferLength);
break;
}
case "ByteFrequency":
case "ByteTimeDomain":{
dataArray = new Uint8Array(bufferLength);
break;
}
}
function renderFrame() {
requestAnimationFrame(renderFrame);
let start = 0,to_end = bufferLength;
switch(vis_type){
case "FloatFrequency":{
analyser.getFloatFrequencyData(dataArray);
break;
}
case "FloatTimeDomain":{
analyser.getFloatTimeDomainData(dataArray);
start = 512;
to_end = bufferLength-start;
break;
}
case "ByteFrequency":{
analyser.getByteFrequencyData(dataArray);
break;
}
case "ByteTimeDomain":{
analyser.getByteTimeDomainData(dataArray);
start = 1024;
to_end = bufferLength-start;
break;
}
}
//console.log(dataArray);
let evn = 0,a_max,a_min;
let H,C=[];
for (let i = start; i < to_end; i++) {
let barHeight = dataArray[i];
let item = {};
item.x = map_range(i,start,to_end-1,0,vb_w);
//console.log(i + " " + item.x);
switch(vis_type){
case "FloatFrequency":{
item.y = vb_h - map_range(barHeight,-170,-10,0,vb_h);
break;
}
case "FloatTimeDomain":{
const v = dataArray[i] * 50;
item.y = (vb_h / 2) + v;
break;
}
case "ByteFrequency":{
item.y = vb_h - map_range(barHeight,0,255,0,vb_h);
break;
}
case "ByteTimeDomain":{
const v = dataArray[i] / 128.0;
item.y = vb_h - (v * (vb_h / 2));
break;
}
}
evn += barHeight;
if(i==start){
H = item;
a_max = dataArray[i];
a_min = dataArray[i];
}else{
C.push(item);
if(dataArray[i] > a_max){
a_max = dataArray[i];
}
if(dataArray[i] < a_min){
a_min = dataArray[i];
}
}
}
switch(vis_type){
case "ByteFrequency":
case "ByteTimeDomain":{
evn = (evn/(to_end-start))/255;
a_max = a_max - 128;
a_min = a_min - 128;
break;
}
case "FloatFrequency":
case "FloatTimeDomain":{
evn = map_range(evn/(to_end-start),-150,-30,0,100);
a_max = a_max - ((a_max+a_min)/2);
a_min = a_min - ((a_max+a_min)/2);
break;
}
}
let svg_r = document.getElementsByClassName("uch-psvg");
for(let i_r=0;i_r<svg_r.length;i_r++){
let svg_item_r = svg_r[i_r];
let path_r = svg_item_r.getElementsByTagName("path");
if(path_r.length >= 2){
let main_path_r = path_r[1];
main_path_r.setAttribute("d",merg(H,C,end));
let top_r = svg_item_r.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode;
let numb_place_r = top_r.parentNode.firstChild.firstChild.lastChild.firstChild;
const max = parseFloat(svg_item_r.parentNode.parentNode.firstChild.childNodes[2].lastChild.textContent);
const min = parseFloat(svg_item_r.parentNode.parentNode.firstChild.firstChild.lastChild.textContent);
//console.log(max);
let range = 0;
switch(vis_type){
case "FloatFrequency":{
range = (evn*(max-min));
break;
}
case "FloatTimeDomain":{
range = (((Math.abs(a_max) > Math.abs(a_min)) ? a_max : a_min)*(max-min))*8;
break;
}
case "ByteFrequency":{
range = (evn*100*(max-min))*0.7;
break;
}
case "ByteTimeDomain":{
range = (((Math.abs(a_max) > Math.abs(a_min)) ? a_max : a_min)*(max-min))*0.1;
break;
}
}
numb_place_r.textContent = (or_num+range).toFixed(2);
//console.log((or_num+range).toFixed(2));
}
}
}
audio.play();
aniID = window.requestAnimationFrame(renderFrame());
};
//console.log(header);
//console.log(content);
//console.log(end);
//randC(header,content,vb_h);
/*setTimeout(()=>{
console.log(merg(header,content,end));
main_path.setAttribute("d",merg(header,content,end));
}, 3000);*/
}
}
}, 1000);
})();
function merg(H,C,E){
let str = "M " + xystr(H);
C.forEach(item => {
str += " L " + xystr(item);
});
E.forEach(item => {
str += " L " + xystr(item);
});
return str;
}
function xystr(xy){
return xy.x + " " + xy.y;
}
function randC(H,C,max){
H.y = random(0,max,2);
for(let i=0;i<C.length;i++){
C[i].y = random(0,max,2);
}
}
function random(min, max, dec = 0){//隨機函式 min=最小值 max=最大值 dec=小數點後的位數(預設為0)
let usedec = Math.pow(10, dec);
let maxc = Math.floor(max * usedec);
let minc = min < max ? Math.floor(min * usedec) : 0;
return (Math.floor(Math.random() * (maxc - minc + 1)) + minc) / usedec;
}
function map_range(value, low1, high1, low2, high2) {
if(value < low1){
return low2;
}
return low2 + (high2 - low2) * (value - low1) / (high1 - low1);
}