MediaWiki:Common.js
MediaWiki interface page
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/* Any JavaScript here will be loaded for all users on every page load. */
(function () {
var pageName = mw.config.get("wgPageName");
var skin = mw.config.get("skin");
var isMainPage = mw.config.get("wgIsMainPage");
function onMainPage() {
var searchTrigger = document.getElementById(
"tg-mainpage-search-trigger"
);
var searchInput = document.getElementById("searchInput");
var searchToggle;
function onSearchTriggerClick() {
if (skin === "citizen") {
// HACK: Force sticky header to be visible
var isSearchHidden =
document.body.classList.contains("citizen-scroll--down") &&
window.matchMedia("(max-width: 1119px)");
if (isSearchHidden) {
document.body.classList.remove("citizen-scroll--down");
document.body.classList.add("citizen-scroll--up");
}
// Citizen does not have a visible search bar, you need to expand the search card first
// And Citizen will focus the input automatically
searchToggle.open = true;
} else {
// This should work for all skins that has visible search bar
searchInput.focus();
}
}
// Attach click event listener to search button on the main page
if (searchTrigger && searchInput) {
if (skin === "citizen") {
searchToggle = document.getElementById("citizen-search-details");
}
searchTrigger.addEventListener("click", onSearchTriggerClick);
}
}
function initSauronEye(container) {
var Eye = {
size: 250,
point: 15,
speed: 100,
pupil: { x: 6, y: 36 },
eye: { x: 100, y: 65 },
data: [],
Add: function (val) {
return val + Eye.size / 2;
},
Interval: function (color, distance, value) {
var s = Math.abs(
(color.a - color.b) / (distance.b - distance.a)
);
var v = value - distance.a;
var c = color.a > color.b ? color.a - v * s : color.a + v * s;
return Math.round(c);
},
Color: function (percent) {
if (percent < 5)
return Eye.Interval(
{ a: 255, b: 180 },
{ a: 0, b: 2 },
percent
);
else if (percent < 10)
return Eye.Interval(
{ a: 180, b: 100 },
{ a: 2, b: 5 },
percent
);
else if (percent < 40)
return Eye.Interval(
{ a: 100, b: 0 },
{ a: 5, b: 30 },
percent
);
else if (percent < 70)
return Eye.Interval(
{ a: 0, b: 100 },
{ a: 30, b: 70 },
percent
);
else if (percent < 75)
return Eye.Interval(
{ a: 100, b: 180 },
{ a: 70, b: 80 },
percent
);
else
return Eye.Interval(
{ a: 180, b: 255 },
{ a: 80, b: 100 },
percent
);
},
Pifagor: function (x, y) {
return Math.sqrt(x * x + y * y);
},
Remove: function (radius, max, i) {
if (radius > max) {
Eye.data.splice(i, 1);
}
},
Write: function (x, y, color, opacity) {
Eye.ctx.fillStyle = "rgba(255," + color + ",0," + opacity + ")";
Eye.ctx.fillRect(Eye.Add(x), Eye.Add(y), 1, 1);
},
Style: function (point, i) {
var radius = Eye.Pifagor(point.x, point.y);
var percent =
((radius - point.min) / (point.max - point.min)) * 100;
var color = Eye.Color(percent);
var opacity = percent > 70 ? 1 - (percent - 70) / 30 : 1;
Eye.Write(point.x, point.y, color, opacity);
Eye.Remove(radius, point.max, i);
},
Move: function (i) {
var point = Eye.data[i];
point.x += point.X;
point.y += point.Y;
Eye.Style(point, i);
},
Update: function () {
Eye.Fill(0.02);
for (var i = 0; i < Eye.point; i++) {
Eye.Point();
}
for (var j = 0; j < Eye.data.length; j++) {
Eye.Move(j);
}
},
Draw: function () {
Eye.Update();
requestAnimationFrame(Eye.Draw, Eye.canvas);
},
Noise: function (value) {
return Math.random() * value - value / 2;
},
Radius: function (start, end) {
return {
max: Eye.Pifagor(end.x, end.y),
min: Eye.Pifagor(start.x, start.y),
};
},
Step: function (start, end) {
return {
x: (end.x - start.x) / Eye.speed,
y: (end.y - start.y) / Eye.speed,
};
},
Position: function (type, angel, noise) {
return {
x: Eye[type].x * Math.cos(angel) + Eye.Noise(noise),
y: Eye[type].y * Math.sin(angel) + Eye.Noise(noise),
};
},
Point: function () {
var angel = Math.random() * 2 * Math.PI;
var start = Eye.Position("pupil", angel, 5);
var end = Eye.Position("eye", angel, 25);
var radius = Eye.Radius(start, end);
var step = Eye.Step(start, end);
Eye.data.push({
x: start.x,
y: start.y,
X: step.x,
Y: step.y,
min: radius.min,
max: radius.max,
});
},
Fill: function (a) {
Eye.ctx.fillStyle = "rgba(0,0,0," + a + ")";
Eye.ctx.fillRect(0, 0, Eye.size, Eye.size);
},
Init: function () {
Eye.Fill(1);
for (var i = 0; i < Eye.point; i++) {
Eye.Point();
}
Eye.Draw();
},
Watch: function () {
Eye.canvas = document.getElementById("tg-sauroneye");
Eye.canvas.width = Eye.size;
Eye.canvas.height = Eye.size;
Eye.ctx = Eye.canvas.getContext("2d");
Eye.Init();
},
};
var canvas = document.createElement("canvas");
canvas.id = "tg-sauroneye";
container.append(canvas);
Eye.Watch();
}
function init() {
// Wait for page content to be fully loaded
mw.hook("wikipage.content").add(function () {
if (isMainPage) {
onMainPage();
}
var eyeContainer = document.getElementById(
"tg-sauroneye-container"
);
if (eyeContainer) {
initSauronEye(eyeContainer);
}
});
}
init();
})();