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Location: symposion_app/static/src/js/lot_hero.js - annotation
97757028d2ab
5.1 KiB
application/javascript
Addition of 'release/' branch logic
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var timeouts = new Array(3);
let green = "#0F7C11";
let radius = 7;
let windowWidth;
let breakPoint = 768;
var loeWrapper = document.getElementById("loe-wrapper");
var loeOf = document.getElementById("of");
var canvas = document.getElementById("hero");
var bottomWrapper = document.getElementById("bottom-wrapper");
var registerLink = document.getElementById("register-link");
var thingsHeading = document.getElementById("things-heading");
var ctx = canvas.getContext("2d");
var canvasPadding = 10;
function positionRegisterLink() {
registerLink.style.position = 'static';
registerLink.style.float = 'none';
var offset = registerLink.offsetTop - loeOf.offsetTop - 0.25 * loeOf.offsetHeight;
if (window.innerWidth >= breakPoint) {
registerLink.style.top = -1 * offset + 'px';
registerLink.style.position = 'relative';
registerLink.style.float = 'right';
}
}
function getCanvasPos() {
var canvasRatio = window.innerWidth < 576 ? 1.1 : 2.5;
var width = loeWrapper.offsetWidth - loeOf.offsetWidth - (2 * canvasPadding);
var minHeight = 180;
if (window.innerWidth >= breakPoint) {
width -= registerLink.offsetWidth;
minHeight = 260;
}
return {
width: width,
height: Math.max(width / canvasRatio, minHeight),
left: loeOf.offsetWidth + canvasPadding,
top: -1.25 * loeOf.offsetHeight,
}
}
function sizeCanvas(pos) {
var c = canvas;
c.width = pos.width;
c.height = pos.height;
c.style.width = pos.width + 'px';
c.style.height = pos.height + 'px';
c.style.position = 'relative';
c.style.left = pos.left + 'px';
c.style.top = pos.top + 'px';
c.style.marginBottom = c.style.top;
}
function positionThingsHeading() {
thingsHeading.style.position = 'relative';
thingsHeading.style.display = 'inline-block';
var left = canvas.offsetWidth - thingsHeading.offsetWidth
if(window.innerWidth >= breakPoint) {
left += registerLink.offsetWidth;
}
thingsHeading.style.left = left + 'px';
thingsHeading.style.top = -0.7 * thingsHeading.offsetHeight + 'px';
thingsHeading.style.marginBottom = thingsHeading.style.top;
}
function positionDate() {
bottomWrapper.style.position = 'static';
bottomWrapper.style.marginBottom = 0;
var offs = -0.7 * thingsHeading.offsetHeight;
offs -= bottomWrapper.offsetHeight * 0.8;
if (window.innerWidth >= 576) {
bottomWrapper.style.position = 'relative';
bottomWrapper.style.top = offs + 'px';
bottomWrapper.style.marginBottom = offs + 20 + 'px';
}
}
function drawLine(ind, context, startX, startY, endX, endY, color) {
let dx = startX - endX;
let dy = startY - endY;
let theta = Math.atan2(dy, dx);
var x = startX - 15 * Math.cos(theta);
var y = startY - 15 * Math.sin(theta);
endX = endX + 30 * Math.cos(theta);
endY = endY + 30 * Math.sin(theta)
let delay = 8;
let increments = 2080 / delay;
let xAdjust = (endX - startX) / increments;
let yAdjust = (endY - startY) / increments;
let counter = 1;
function line() {
context.beginPath();
context.lineWidth = 1.9;
context.moveTo(x, y);
x = x + xAdjust;
y = y + yAdjust;
context.lineTo(x, y);
context.strokeStyle = color;
context.stroke();
counter++;
if (counter <= increments) {
timeouts[ind] = window.setTimeout(line, delay);
}
};
timeouts[ind] = window.setTimeout(line, delay);
}
function drawCircle(context, x, y, radius, color) {
context.beginPath();
context.fillStyle = color;
context.arc(x, y, radius, 0, 2 * Math.PI);
context.fill();
}
function windowResize() {
if(window.innerWidth === windowWidth) {
// Catch mobile scroll event, as this can hide/unhide the address
// bar and fire a resize event.
return;
} else {
windowWidth = window.innerWidth;
}
for(var i = 0; i < 3; i++) {
window.clearTimeout(timeouts[i]);
}
var canvasPos = getCanvasPos();
sizeCanvas(canvasPos)
positionThingsHeading();
positionDate();
function getLowestPoint() {
var pos = thingsHeading.offsetLeft - canvas.offsetLeft - 20;
if(pos < 10) {
pos = thingsHeading.offsetLeft + 0.5 * thingsHeading.offsetWidth;
}
return pos
}
let points = [
[10, 10],
[canvasPos.width - 10, 10],
[
getLowestPoint(),
canvasPos.height -10
]
];
positionRegisterLink();
drawCircle(ctx, points[0][0], points[0][1], radius, green);
drawCircle(ctx, points[1][0], points[1][1], radius, green);
drawCircle(ctx, points[2][0], points[2][1], radius, green);
drawLine(0, ctx, points[0][0], points[0][1], points[2][0], points[2][1], green);
drawLine(1, ctx, points[2][0], points[2][1], points[1][0], points[1][1], green);
drawLine(2, ctx, points[1][0], points[1][1], points[0][0], points[0][1], green);
}
windowResize();
window.addEventListener('resize', windowResize, false);
}
hero();
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