atlas/web/_js/view.js
Hans5958 0a1d5c01ee Forgot to fix resize fix
Please no Netlify gimmicko again
2022-04-14 21:05:45 +07:00

830 lines
20 KiB
JavaScript

/*
========================================================================
The 2022 /r/place Atlas
An Atlas of Reddit's 2022 /r/place, with information to each
artwork of the canvas provided by the community.
Copyright (c) 2017 Roland Rytz <roland@draemm.li>
Copyright (c) 2022 r/placeAtlas2 contributors
Licensed under the GNU Affero General Public License Version 3
https://place-atlas.stefanocoding.me/license.txt
========================================================================
*/
var linesCanvas = document.getElementById("linesCanvas");
var linesContext = linesCanvas.getContext("2d");
var hovered = [];
var previousZoomOrigin = [0, 0];
var previousScaleZoomOrigin = [0, 0];
var backgroundCanvas = document.createElement("canvas");
backgroundCanvas.width = 2000;
backgroundCanvas.height = 2000;
var backgroundContext = backgroundCanvas.getContext("2d");
var wrapper = document.getElementById("wrapper");
var objectsContainer = document.getElementById("objectsList");
var closeObjectsListButton = document.getElementById("closeObjectsListButton");
var filterInput = document.getElementById("searchList");
var entriesList = document.getElementById("entriesList");
var hideListButton = document.getElementById("hideListButton");
var entriesListShown = false;
var sortedAtlas;
var entriesLimit = 50;
var entriesOffset = 0;
var moreEntriesButton = document.createElement("button");
moreEntriesButton.innerHTML = "Show "+entriesLimit+" more";
moreEntriesButton.id = "moreEntriesButton";
moreEntriesButton.onclick = function(){
buildObjectsList(null, null);
renderBackground();
render();
};
var defaultSort = "shuffle";
document.getElementById("sort").value = defaultSort;
var lastPos = [0, 0];
var fixed = false; // Fix hovered items in place, so that clicking on links is possible
if(document.documentElement.clientWidth > 2000){
entriesListShown = true;
wrapper.classList.remove('listHidden')
}
if(document.documentElement.clientWidth < 2000){
entriesListShown = false;
wrapper.classList.add('listHidden')
}
filterInput.addEventListener("input", function(e){
entriesOffset = 0;
entriesList.innerHTML = "";
entriesList.appendChild(moreEntriesButton);
if(this.value === ""){
document.getElementById("relevantOption").disabled = true;
sortedAtlas = atlas.concat();
buildObjectsList(null, null);
} else {
document.getElementById("relevantOption").disabled = false;
buildObjectsList(this.value.toLowerCase(), "relevant");
}
});
document.getElementById("sort").addEventListener("input", function(e){
entriesOffset = 0;
entriesList.innerHTML = "";
entriesList.appendChild(moreEntriesButton);
if(this.value != "relevant"){
defaultSort = this.value;
}
buildObjectsList(filterInput.value.toLowerCase(), this.value);
});
hideListButton.addEventListener("click", function(e){
entriesListShown = !entriesListShown;
if(entriesListShown){
wrapper.classList.remove('listHidden')
} else {
wrapper.classList.add('listHidden')
}
updateHovering(e);
applyView();
render();
updateLines();
return false;
});
closeObjectsListButton.addEventListener("click", function(e){
hovered = [];
objectsContainer.innerHTML = "";
updateLines();
closeObjectsListButton.className = "hidden";
fixed = false;
render();
});
function toggleFixed(e, tapped){
if(!fixed && hovered.length == 0){
return 0;
}
fixed = !fixed;
if(!fixed){
updateHovering(e, tapped);
render();
}
}
window.addEventListener("resize", updateLines);
window.addEventListener("mousemove", updateLines);
window.addEventListener("dblClick", updateLines);
window.addEventListener("wheel", updateLines);
objectsContainer.addEventListener("scroll", function(e){
updateLines();
});
window.addEventListener("resize", function(e){
//console.log(document.documentElement.clientWidth, document.documentElement.clientHeight);
var viewportWidth = document.documentElement.clientWidth;
if(document.documentElement.clientWidth > 2000 && viewportWidth <= 2000){
entriesListShown = true;
wrapper.className = wrapper.className.replace(/ listHidden/g, "");
}
if(document.documentElement.clientWidth < 2000 && viewportWidth >= 2000){
entriesListShown = false;
wrapper.className += " listHidden";
}
updateHovering(e);
viewportWidth = document.documentElement.clientWidth;
applyView();
render();
updateLines();
});
function updateLines(){
linesCanvas.width = linesCanvas.clientWidth;
linesCanvas.height = linesCanvas.clientHeight;
linesContext.lineCap = "round";
linesContext.lineWidth = Math.max(Math.min(zoom*1.5, 16*1.5), 6);
linesContext.strokeStyle = "#000000";
for(var i = 0; i < hovered.length; i++){
var element = hovered[i].element;
if(element.getBoundingClientRect().left != 0){
linesContext.beginPath();
//linesContext.moveTo(element.offsetLeft + element.clientWidth - 10, element.offsetTop + 20);
linesContext.moveTo(
element.getBoundingClientRect().left + document.documentElement.scrollLeft + element.clientWidth/2
,element.getBoundingClientRect().top + document.documentElement.scrollTop + 20
);
linesContext.lineTo(
~~(hovered[i].center[0]*zoom) + innerContainer.offsetLeft
,~~(hovered[i].center[1]*zoom) + innerContainer.offsetTop
);
linesContext.stroke();
}
}
linesContext.lineWidth = Math.max(Math.min(zoom, 16), 4);
linesContext.strokeStyle = "#FFFFFF";
for(var i = 0; i < hovered.length; i++){
var element = hovered[i].element;
if(element.getBoundingClientRect().left != 0){
linesContext.beginPath();
linesContext.moveTo(
element.getBoundingClientRect().left + document.documentElement.scrollLeft + element.clientWidth/2
,element.getBoundingClientRect().top + document.documentElement.scrollTop + 20
);
linesContext.lineTo(
~~(hovered[i].center[0]*zoom) + innerContainer.offsetLeft
,~~(hovered[i].center[1]*zoom) + innerContainer.offsetTop
);
linesContext.stroke();
}
}
}
function renderBackground(atlas){
backgroundContext.clearRect(0, 0, canvas.width, canvas.height);
//backgroundCanvas.width = 1000 * zoom;
//backgroundCanvas.height = 1000 * zoom;
//backgroundContext.lineWidth = zoom;
backgroundContext.fillStyle = "rgba(0, 0, 0, 0.6)";
backgroundContext.fillRect(0, 0, backgroundCanvas.width, backgroundCanvas.height);
for(var i = 0; i < atlas.length; i++){
var path = atlas[i].path;
backgroundContext.beginPath();
if(path[0]){
//backgroundContext.moveTo(path[0][0]*zoom, path[0][1]*zoom);
backgroundContext.moveTo(path[0][0], path[0][1]);
}
for(var p = 1; p < path.length; p++){
//backgroundContext.lineTo(path[p][0]*zoom, path[p][1]*zoom);
backgroundContext.lineTo(path[p][0], path[p][1]);
}
backgroundContext.closePath();
var bgStrokeStyle;
switch (atlas[i].diff) {
case "add":
bgStrokeStyle = "rgba(0, 255, 0, 1)";
backgroundContext.lineWidth = 2;
break;
case "edit":
bgStrokeStyle = "rgba(255, 255, 0, 1)";
backgroundContext.lineWidth = 2;
break;
case "delete":
bgStrokeStyle = "rgba(255, 0, 0, 1)";
backgroundContext.lineWidth = 2;
break;
default:
bgStrokeStyle = "rgba(255, 255, 255, 0.8)";
break;
}
backgroundContext.strokeStyle = bgStrokeStyle;
backgroundContext.stroke();
backgroundContext.lineWidth = 1;
}
}
function buildObjectsList(filter, sort){
if(entriesList.contains(moreEntriesButton)){
entriesList.removeChild(moreEntriesButton);
}
if(!sortedAtlas){
sortedAtlas = atlas.concat();
document.getElementById("atlasSize").innerHTML = "The Atlas contains "+sortedAtlas.length+" entries.";
}
if(filter){
sortedAtlas = atlas.filter(function(value){
return (
value.name.toLowerCase().indexOf(filter) !== -1
|| value.description.toLowerCase().indexOf(filter) !== -1
|| value.subreddit && value.subreddit.toLowerCase().indexOf(filter) !== -1
|| value.id === filter
);
});
document.getElementById("atlasSize").innerHTML = "Found "+sortedAtlas.length+" entries.";
} else {
document.getElementById("atlasSize").innerHTML = "The Atlas contains "+sortedAtlas.length+" entries.";
}
if(sort === null){
sort = defaultSort;
}
renderBackground(sortedAtlas);
render();
document.getElementById("sort").value = sort;
//console.log(sort);
var sortFunction;
//console.log(sort);
switch(sort){
case "shuffle":
sortFunction = null;
if(entriesOffset == 0){
shuffle();
}
break;
case "alphaAsc":
sortFunction = function(a, b){
return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
}
break;
case "alphaDesc":
sortFunction = function(a, b){
return b.name.toLowerCase().localeCompare(a.name.toLowerCase());
}
break;
case "newest":
sortFunction = function(a, b){
if (a.id > b.id) {
return -1;
}
if (a.id < b.id) {
return 1;
}
// a must be equal to b
return 0;
}
break;
case "oldest":
sortFunction = function(a, b){
if (a.id < b.id) {
return -1;
}
if (a.id > b.id) {
return 1;
}
// a must be equal to b
return 0;
}
break;
case "area":
sortFunction = function(a, b){
return calcPolygonArea(b.path) - calcPolygonArea(a.path);
}
break;
case "relevant":
sortFunction = function(a, b){
if(a.name.toLowerCase().indexOf(filter) !== -1 && b.name.toLowerCase().indexOf(filter) !== -1){
if (a.name.toLowerCase().indexOf(filter) < b.name.toLowerCase().indexOf(filter)) {
return -1;
}
else if (a.name.toLowerCase().indexOf(filter) > b.name.toLowerCase().indexOf(filter)) {
return 1;
} else {
return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
}
} else if(a.name.toLowerCase().indexOf(filter) !== -1){
return -1;
} else if(b.name.toLowerCase().indexOf(filter) !== -1){
return 1;
} else {
if (a.description.toLowerCase().indexOf(filter) < b.description.toLowerCase().indexOf(filter)) {
return -1;
}
else if (a.description.toLowerCase().indexOf(filter) > b.description.toLowerCase().indexOf(filter)) {
return 1;
} else {
return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
}
}
}
break;
}
if(sortFunction){
sortedAtlas.sort(sortFunction);
}
for(var i = entriesOffset; i < entriesOffset+entriesLimit; i++){
if(i >= sortedAtlas.length){
break;
}
var element = createInfoBlock(sortedAtlas[i]);
element.entry = sortedAtlas[i];
element.addEventListener("mouseenter", function(e){
if(!fixed && !dragging){
objectsContainer.innerHTML = "";
previousZoomOrigin = [zoomOrigin[0], zoomOrigin[1]];
previousScaleZoomOrigin = [scaleZoomOrigin[0], scaleZoomOrigin[1]];
applyView();
zoomOrigin = [
innerContainer.clientWidth/2 - this.entry.center[0]* zoom// + container.offsetLeft
,innerContainer.clientHeight/2 - this.entry.center[1]* zoom// + container.offsetTop
]
scaleZoomOrigin = [
2000/2 - this.entry.center[0]
,2000/2 - this.entry.center[1]
]
//console.log(zoomOrigin);
applyView();
hovered = [this.entry];
render();
hovered[0].element = this;
updateLines();
}
});
element.addEventListener("click", function(e){
toggleFixed(e);
if(fixed){
previousZoomOrigin = [zoomOrigin[0], zoomOrigin[1]];
previousScaleZoomOrigin = [scaleZoomOrigin[0], scaleZoomOrigin[1]];
applyView();
}
if(document.documentElement.clientWidth < 500){
objectsContainer.innerHTML = "";
entriesListShown = false;
wrapper.className += " listHidden";
zoom = 4;
renderBackground(atlas);
applyView();
updateHovering(e);
zoomOrigin = [
innerContainer.clientWidth/2 - this.entry.center[0]* zoom// + container.offsetLeft
,innerContainer.clientHeight/2 - this.entry.center[1]* zoom// + container.offsetTop
]
scaleZoomOrigin = [
2000/2 - this.entry.center[0]
,2000/2 - this.entry.center[1]
]
previousZoomOrigin = [zoomOrigin[0], zoomOrigin[1]];
previousScaleZoomOrigin = [scaleZoomOrigin[0], scaleZoomOrigin[1]];
fixed = true;
hovered = [this.entry];
hovered[0].element = this;
applyView();
render();
updateLines();
}
});
element.addEventListener("mouseleave", function(e){
if(!fixed && !dragging){
zoomOrigin = [previousScaleZoomOrigin[0]*zoom, previousScaleZoomOrigin[1]*zoom];
scaleZoomOrigin = [previousScaleZoomOrigin[0], previousScaleZoomOrigin[1]];
applyView();
hovered = [];
updateLines();
render();
}
});
entriesList.appendChild(element);
}
entriesOffset += entriesLimit;
if(sortedAtlas.length > entriesOffset){
moreEntriesButton.innerHTML = "Show "+Math.min(entriesLimit, sortedAtlas.length - entriesOffset)+" more";
entriesList.appendChild(moreEntriesButton);
}
}
function shuffle(){
//console.log("shuffled atlas");
for (var i = sortedAtlas.length - 1; i > 0; i--) {
var j = Math.floor(Math.random() * (i + 1));
var temp = sortedAtlas[i];
sortedAtlas[i] = sortedAtlas[j];
sortedAtlas[j] = temp;
}
}
async function render(){
context.clearRect(0, 0, canvas.width, canvas.height);
//canvas.width = 1000*zoom;
//canvas.height = 1000*zoom;
context.globalCompositeOperation = "source-over";
context.clearRect(0, 0, canvas.width, canvas.height);
if(hovered.length > 0){
container.style.cursor = "pointer";
} else {
container.style.cursor = "default";
}
for(var i = 0; i < hovered.length; i++){
var path = hovered[i].path;
context.beginPath();
if(path[0]){
//context.moveTo(path[0][0]*zoom, path[0][1]*zoom);
context.moveTo(path[0][0], path[0][1]);
}
for(var p = 1; p < path.length; p++){
//context.lineTo(path[p][0]*zoom, path[p][1]*zoom);
context.lineTo(path[p][0], path[p][1]);
}
context.closePath();
context.globalCompositeOperation = "source-over";
context.fillStyle = "rgba(0, 0, 0, 1)";
context.fill();
}
context.globalCompositeOperation = "source-out";
context.drawImage(backgroundCanvas, 0, 0);
if(hovered.length === 1 && hovered[0].path.length && hovered[0].overrideImage){
let undisputableHovered = hovered[0];
// Find the left-topmost point of all the paths
let entryPosition = getPositionOfEntry(undisputableHovered);
if(entryPosition){
const [startX, startY] = entryPosition;
let overrideImage = new Image();
const loadingPromise = new Promise((res, rej) => {
overrideImage.onerror = rej;
overrideImage.onload = res;
});
overrideImage.src = "imageOverrides/" + undisputableHovered.overrideImage;
try{
await loadingPromise;
context.globalCompositeOperation = "source-over";
context.drawImage(overrideImage, startX, startY);
}catch(ex){
console.log("Cannot override image.");
console.log(ex);
}
}
}
for(var i = 0; i < hovered.length; i++){
var path = hovered[i].path;
context.beginPath();
if(path[0]){
//context.moveTo(path[0][0]*zoom, path[0][1]*zoom);
context.moveTo(path[0][0], path[0][1]);
}
for(var p = 1; p < path.length; p++){
//context.lineTo(path[p][0]*zoom, path[p][1]*zoom);
context.lineTo(path[p][0], path[p][1]);
}
context.closePath();
context.globalCompositeOperation = "source-over";
var hoverStrokeStyle;
switch (hovered[i].diff) {
case "add":
hoverStrokeStyle = "rgba(0, 155, 0, 1)";
break;
case "edit":
hoverStrokeStyle = "rgba(155, 155, 0, 1)";
break;
default:
hoverStrokeStyle = "rgba(0, 0, 0, 1)";
break;
}
context.strokeStyle = hoverStrokeStyle;
//context.lineWidth = zoom;
context.stroke();
}
}
function updateHovering(e, tapped){
if(!dragging && (!fixed || tapped)){
var pos = [
(e.clientX - (container.clientWidth/2 - innerContainer.clientWidth/2 + zoomOrigin[0] + container.offsetLeft))/zoom
,(e.clientY - (container.clientHeight/2 - innerContainer.clientHeight/2 + zoomOrigin[1] + container.offsetTop))/zoom
];
var coords_p = document.getElementById("coords_p");
coords_p.innerText = Math.ceil(pos[0]) + ", " + Math.ceil(pos[1]);
if(pos[0] <= 2200 && pos[0] >= -100 && pos[0] <= 2200 && pos[0] >= -100){
var newHovered = [];
for(var i = 0; i < atlas.length; i++){
if(pointIsInPolygon(pos, atlas[i].path)){
newHovered.push(atlas[i]);
}
}
var changed = false;
if(hovered.length == newHovered.length){
for(var i = 0; i < hovered.length; i++){
if(hovered[i].id != newHovered[i].id){
changed = true;
break;
}
}
} else {
changed = true;
}
if(changed){
hovered = newHovered.sort(function(a, b){
return calcPolygonArea(a.path) - calcPolygonArea(b.path);
});
objectsContainer.innerHTML = "";
for(var i in hovered){
var element = createInfoBlock(hovered[i]);
objectsContainer.appendChild(element);
hovered[i].element = element;
}
if(hovered.length > 0){
closeObjectsListButton.className = "";
} else {
closeObjectsListButton.className = "hidden";
}
render();
}
}
}
}
window.addEventListener("hashchange", highlightEntryFromUrl);
function highlightEntryFromUrl(){
var objectsContainer = document.getElementById("objectsList");
var id = window.location.hash.substring(1); //Remove hash prefix
var entries = atlas.filter(function(e){
return e.id === id;
});
if (entries.length === 1){
let entry = entries[0];
document.title = entry.name + " on the 2022 /r/place Atlas";
var infoElement = createInfoBlock(entry);
objectsContainer.innerHTML = "";
objectsContainer.appendChild(infoElement);
//console.log(entry.center[0]);
//console.log(entry.center[1]);
zoom = 4;
renderBackground(atlas);
applyView();
zoomOrigin = [
innerContainer.clientWidth/2 - entry.center[0]* zoom// + container.offsetLeft
,innerContainer.clientHeight/2 - entry.center[1]* zoom// + container.offsetTop
];
scaleZoomOrigin = [
2000/2 - entry.center[0]// + container.offsetLeft
,2000/2 - entry.center[1]// + container.offsetTop
];
//console.log(zoomOrigin);
applyView();
hovered = [entry];
render();
hovered[0].element = infoElement;
closeObjectsListButton.className = "";
updateLines();
fixed = true;
}
}
function initView(){
buildObjectsList(null, null);
renderBackground(atlas);
render();
timeCallback = (tempAtlas) => {
renderBackground(tempAtlas);
render();
}
// parse linked atlas entry id from link hash
/*if (window.location.hash.substring(3)){
zoom = 4;
applyView();
highlightEntryFromUrl();
}*/
applyView();
render();
updateLines();
if(window.location.hash){ // both "/" and just "/#" will be an empty hash string
highlightEntryFromUrl();
}
}
function initExplore(){
window.updateHovering = updateHovering
function updateHovering(e, tapped){
if(!dragging && (!fixed || tapped)){
var pos = [
(e.clientX - (container.clientWidth/2 - innerContainer.clientWidth/2 + zoomOrigin[0] + container.offsetLeft))/zoom
,(e.clientY - (container.clientHeight/2 - innerContainer.clientHeight/2 + zoomOrigin[1] + container.offsetTop))/zoom
];
var coords_p = document.getElementById("coords_p");
coords_p.innerText = Math.ceil(pos[0]) + ", " + Math.ceil(pos[1]);
}
}
renderBackground(atlas);
applyView();
}
function initGlobal() {
container.addEventListener("mousemove", function(e){
if(e.sourceCapabilities){
if(!e.sourceCapabilities.firesTouchEvents){
updateHovering(e);
}
} else {
updateHovering(e);
}
});
}
function initViewGlobal() {
container.addEventListener("mousedown", function(e){
lastPos = [
e.clientX
,e.clientY
];
});
container.addEventListener("touchstart", function(e){
if(e.touches.length == 1){
lastPos = [
e.touches[0].clientX
,e.touches[0].clientY
];
}
},{passive: true} );
container.addEventListener("mouseup", function(e){
if(Math.abs(lastPos[0] - e.clientX) + Math.abs(lastPos[1] - e.clientY) <= 4){
toggleFixed(e);
}
});
container.addEventListener("touchend", function(e){
e.preventDefault()
//console.log(e);
//console.log(e.changedTouches[0].clientX);
if(e.changedTouches.length == 1){
e = e.changedTouches[0];
//console.log(lastPos[0] - e.clientX);
if(Math.abs(lastPos[0] - e.clientX) + Math.abs(lastPos[1] - e.clientY) <= 4){
//console.log("Foo!!");
dragging = false;
fixed = false;
setTimeout(
function(){
updateHovering(e, true);
}
, 10);
}
}
});
}