2011-m1s2-ter/code/serveur/php/ressources/my-extensions.js

258 lines
7.5 KiB
JavaScript

Number.prototype.clip = function(min, max, floor) {
try {
return Math.min(Math.max(floor ? Math.floor(this) : this, min), max);
} catch(e) {alert("Error Number.prototype.clip");alert(e);}
};
Number.prototype.mapInterval = function(a,b,x,y) {
return x + ((this-a) / (b-a) * (y-x));
}
Array.prototype.equalp = function(a) {
if (this.length != a.length) return false;
for (var i = 0; i < this.length; i++) {
if (this[i] !== a[i]) return false;
}
return true;
};
function dichotomy(start, isBigger) {
try {
var i = 0, min = 0, max, half;
for (max = start || 1; ++i < 10 && !isBigger(max); max *= 2);
for (half = start; Math.abs(min-max) > 0.1; half = (min + max) / 2) {
if (!isBigger(half)) min = half;
else max = half;
}
while (half > 1 && isBigger(half)) { --half; }
return half;
} catch(e) {alert("Error dichotomy");alert(e);throw(e);}
}
$.fn.fold = function(acc, fn) {
try {
this.each(function(i,e) { acc = fn(acc, i, e); });
return acc;
} catch(e) {alert("Error $.fn.fold");alert(e);}
};
$.fn.maxWidth = function() { return this.fold(0, function(acc,i,e){ return Math.max(acc, $(e).width()); }); };
$.fn.maxHeight = function() { return this.fold(0, function(acc,i,e){ return Math.max(acc, $(e).height()); }); };
$.fn.sumHeight = function() { return this.fold(0, function(acc,i,e){ return acc + $(e).height(); }); };
$.fn.sumOuterHeight = function() { return this.fold(0, function(acc,i,e){ return acc + $(e).outerHeight(); }); };
$.fn.hasScroll = function() {
var e = this.get(0);
return (e.clientHeight != e.scrollHeight) || (e.clientWidth != e.scrollWidth);
}
$.fn.fitFont = function() {
try {
var that = this;
this.css({overflow: 'auto'});
var setFont = this.find('.setFont').andSelf();
this.find('.center').css({top:0, left:0}); // Petit hack pour que ça ne déborde pas à cause de l'offset mis par .center().
var size = dichotomy(parseInt(this.css("font-size"), 10), function(x) {
setFont.css("fontSize", x);
return that.$ormap(function(i,e) { return e.hasScroll(); });
});
this.css({overflow: 'hidden'});
this.css("font-size", Math.max(0, size));
return this;
} catch(e) {alert("Error $.fn.fitFont");alert(e);throw(e);}
};
$.fn.swapCSS = function(k,v) {
var old = this.css(k);
this.css(k, v);
return old;
};
$.fn.$each = function(fn) {
this.each(function(i,e) { return fn(i, $(e)); });
};
$.fn.$ormap = function(fn) {
var ret = false;
this.each(function(i,e) { if (fn(i, $(e))) { ret = true; return false; } });
return ret;
};
function queueize(method) {
try {
return function() {
var $this = this;
var args = Array.prototype.slice.call(arguments); // cast Arguments → Array
return this.queue(function(next) {
$this[method].apply($this,args);
next();
});
};
} catch(e) {alert("Error queueize");alert(e);}
}
$.fn.qAddClass = queueize("addClass");
$.fn.qRemoveClass = queueize("removeClass");
$.fn.qRemove = queueize("remove");
$.fn.qShow = queueize("show");
$.fn.qHide = queueize("hide");
$.fn.qCss = queueize("css");
$.fn.qText = queueize("text");
$.fn.wh = function(w, h) {
try {
if (isNaN(+w) && w && typeof w.width != 'undefined') { h = w.height; w = w.width; }
if (typeof w == 'undefined') return {width: this.width(), height:this.height()};
return this.width(w).height(isNaN(+h) ? w : h);
} catch(e) {alert("Error $.fn.wh");alert(e);}
};
$.fn.relativePos = function(xAnchor, yAnchor, to, justCss) {
try {
if (to) this.css("position", "absolute");
var deltaX = this.outerWidth() * xAnchor;
var deltaY = this.outerHeight() * yAnchor;
if (to) {
var css = {
left: to.left - deltaX,
top: to.top - deltaY
};
return (justCss ? css : this.offset(css));
} else {
var pos = this.offset();
pos.left += deltaX;
pos.top += deltaY;
return pos;
}
} catch(e) {alert("Error $.fn.relativePos");alert(e);}
};
$.each({
center: {x:0.5, y:0.5},
north: {x:0.5, y:0},
northEast: {x:1, y:0},
east: {x:1, y:0.5},
southEast: {x:1, y:1},
south: {x:0.5, y:1},
southWest: {x:0, y:1},
west: {x:0, y:0.5},
northWest: {x:0, y:0},
}, function(i,e) {
try {
var x = e.x;
var y = e.y;
$.fn[i] = function(to, justCss) {
try {
return this.relativePos(x, y, to, justCss);
} catch(e) {alert("Error auto-generated $.fn." + i);alert(e);}
};
} catch(e) {alert("Error top-level anonymous in my-extensions");alert(e);}
});
$.fn.clickOnce = function(fn) {
try {
this.unbind("click",fn).click(fn);
} catch(e) {alert("Error $.fn.clickOnce");alert(e);}
};
/**
* startcolor et endcolor sont de la forme {r:0,g:255,b:127}
*/
$.fn.goodBad = function(min, max, startcolor, endcolor) {
var val = parseInt(this.text(), 10);
if (isNaN(val)) return this;
this.css("color","rgb("
+(val.mapInterval(min,max,startcolor.r,endcolor.r).clip(0, 255, true))+","
+(val.mapInterval(min,max,startcolor.g,endcolor.g).clip(0, 255, true))+","
+(val.mapInterval(min,max,startcolor.b,endcolor.b).clip(0, 255, true))+")");
return this;
};
$.debounce = function debounce(fn, interval) {
var wait = false;
var delayedFn = false;
interval = interval || 200;
return function() {
var that = this;
var args = Array.prototype.slice.call(arguments); // cast Arguments → Array
delayedFn = function() { delayedFn = false; fn.apply(that, args); }
if (!wait) {
wait = true;
delayedFn();
var loop = function() {
if (delayedFn) {
delayedFn();
window.setTimeout(loop, interval);
} else {
wait = false;
}
}
window.setTimeout(loop, interval);
}
};
};
/** Zoom from small center of startElem to big center of endElem, or do the reverse animation (from big end to small start). */
$.fn.zoom = function(startElem, endElem, reverse) {
var that = this;
startElem = $(startElem);
endElem = $(endElem);
return this.queue(function(next) {
if (that.size() == 0) return next();
that.removeClass('transition'); // disable animations
window.setTimeout(function() {
// Calcul de la taille de police pour end().
var endbox = $('<div style="text-align:center;"/>').appendTo('body').wh(endElem.wh());
that.appendTo(endbox);
that.css({position:'', top:'', left:''});
endbox.fitFont();
var BFontSize = endbox.css('fontSize');
var APos = endbox.css('fontSize', 0).center(startElem.center()).offset();
var BPos = endbox.css('fontSize', BFontSize).center(endElem.center()).offset();
var A = function() { endbox.css('fontSize', 0).offset(APos); };
var B = function() { endbox.css('fontSize', BFontSize).offset(BPos); };
(reverse ? B : A)();
window.setTimeout(function() {
endbox.addClass('transition'); // enable animations
(reverse ? A : B)();
endbox.delay(700).qRemoveClass('transition');
if (reverse) endbox.qRemove();
next();
}, 0);
}, 0);
});
};
function decodeHash(hash) {
/* hash.match(/^#([a-z]+(\/[0-9]+(\/-?[0-9]+(,-?[0-9]+)*)?)?)?$/) */
hash = hash.substring(1).split('/');
return {
screen:hash[0] || 'splash',
pgid:hash[1] || 0,
answers:(hash[2] ? hash[2].split(',') : [])
};
}
function appendAnswer(data, answer) {
return $.extend({}, data, { answers: data.answers.concat([answer]) });
}
function encodeHash(data) {
var hash = "#";
if (data.screen == '') return hash;
hash += data.screen
if (data.pgid == 0) return hash;
hash += '/'+data.pgid;
if (data.answers.length == 0) return hash;
hash += '/'+data.answers.join(',');
return hash;
}
function Cache(resolver) {
var cache = {};
this.get = function(k, arg) {
return cache[k] = cache[k] || $.Deferred(function(dfd) { resolver(k, dfd, arg); }).fail(function() { cache[k] = false; }).promise();
};
}