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(function() {
var BOUNDS_FORMAT, MIRROR_ATTACH, defer, extend, getBoundingRect, getBounds, getOuterSize, getSize, updateClasses, _ref,
__indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
_ref = this.Tether.Utils, getOuterSize = _ref.getOuterSize, getBounds = _ref.getBounds, getSize = _ref.getSize, extend = _ref.extend, updateClasses = _ref.updateClasses, defer = _ref.defer;
MIRROR_ATTACH = {
left: 'right',
right: 'left',
top: 'bottom',
bottom: 'top',
middle: 'middle'
};
BOUNDS_FORMAT = ['left', 'top', 'right', 'bottom'];
getBoundingRect = function(tether, to) {
var i, pos, side, size, style, _i, _len;
if (to === 'scrollParent') {
to = tether.scrollParent;
} else if (to === 'window') {
to = [pageXOffset, pageYOffset, innerWidth + pageXOffset, innerHeight + pageYOffset];
}
if (to === document) {
to = to.documentElement;
}
if (to.nodeType != null) {
pos = size = getBounds(to);
style = getComputedStyle(to);
to = [pos.left, pos.top, size.width + pos.left, size.height + pos.top];
for (i = _i = 0, _len = BOUNDS_FORMAT.length; _i < _len; i = ++_i) {
side = BOUNDS_FORMAT[i];
side = side[0].toUpperCase() + side.substr(1);
if (side === 'Top' || side === 'Left') {
to[i] += parseFloat(style["border" + side + "Width"]);
} else {
to[i] -= parseFloat(style["border" + side + "Width"]);
}
}
}
return to;
};
this.Tether.modules.push({
position: function(_arg) {
var addClasses, allClasses, attachment, bounds, changeAttachX, changeAttachY, cls, constraint, eAttachment, height, left, oob, oobClass, p, pin, pinned, pinnedClass, removeClass, side, tAttachment, targetAttachment, targetHeight, targetSize, targetWidth, to, top, width, _i, _j, _k, _l, _len, _len1, _len2, _len3, _len4, _len5, _m, _n, _ref1, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8,
_this = this;
top = _arg.top, left = _arg.left, targetAttachment = _arg.targetAttachment;
if (!this.options.constraints) {
return true;
}
removeClass = function(prefix) {
var side, _i, _len, _results;
_this.removeClass(prefix);
_results = [];
for (_i = 0, _len = BOUNDS_FORMAT.length; _i < _len; _i++) {
side = BOUNDS_FORMAT[_i];
_results.push(_this.removeClass("" + prefix + "-" + side));
}
return _results;
};
_ref1 = this.cache('element-bounds', function() {
return getBounds(_this.element);
}), height = _ref1.height, width = _ref1.width;
if (width === 0 && height === 0 && (this.lastSize != null)) {
_ref2 = this.lastSize, width = _ref2.width, height = _ref2.height;
}
targetSize = this.cache('target-bounds', function() {
return _this.getTargetBounds();
});
targetHeight = targetSize.height;
targetWidth = targetSize.width;
tAttachment = {};
eAttachment = {};
allClasses = [this.getClass('pinned'), this.getClass('out-of-bounds')];
_ref3 = this.options.constraints;
for (_i = 0, _len = _ref3.length; _i < _len; _i++) {
constraint = _ref3[_i];
if (constraint.outOfBoundsClass) {
allClasses.push(constraint.outOfBoundsClass);
}
if (constraint.pinnedClass) {
allClasses.push(constraint.pinnedClass);
}
}
for (_j = 0, _len1 = allClasses.length; _j < _len1; _j++) {
cls = allClasses[_j];
_ref4 = ['left', 'top', 'right', 'bottom'];
for (_k = 0, _len2 = _ref4.length; _k < _len2; _k++) {
side = _ref4[_k];
allClasses.push("" + cls + "-" + side);
}
}
addClasses = [];
tAttachment = extend({}, targetAttachment);
eAttachment = extend({}, this.attachment);
_ref5 = this.options.constraints;
for (_l = 0, _len3 = _ref5.length; _l < _len3; _l++) {
constraint = _ref5[_l];
to = constraint.to, attachment = constraint.attachment, pin = constraint.pin;
if (attachment == null) {
attachment = '';
}
if (__indexOf.call(attachment, ' ') >= 0) {
_ref6 = attachment.split(' '), changeAttachY = _ref6[0], changeAttachX = _ref6[1];
} else {
changeAttachX = changeAttachY = attachment;
}
bounds = getBoundingRect(this, to);
if (changeAttachY === 'target' || changeAttachY === 'both') {
if (top < bounds[1] && tAttachment.top === 'top') {
top += targetHeight;
tAttachment.top = 'bottom';
}
if (top + height > bounds[3] && tAttachment.top === 'bottom') {
top -= targetHeight;
tAttachment.top = 'top';
}
}
if (changeAttachY === 'together') {
if (top < bounds[1] && tAttachment.top === 'top') {
if (eAttachment.top === 'bottom') {
top += targetHeight;
tAttachment.top = 'bottom';
top += height;
eAttachment.top = 'top';
} else if (eAttachment.top === 'top') {
top += targetHeight;
tAttachment.top = 'bottom';
top -= height;
eAttachment.top = 'bottom';
}
}
if (top + height > bounds[3] && tAttachment.top === 'bottom') {
if (eAttachment.top === 'top') {
top -= targetHeight;
tAttachment.top = 'top';
top -= height;
eAttachment.top = 'bottom';
} else if (eAttachment.top === 'bottom') {
top -= targetHeight;
tAttachment.top = 'top';
top += height;
eAttachment.top = 'top';
}
}
if (tAttachment.top === 'middle') {
if (top + height > bounds[3] && eAttachment.top === 'top') {
top -= height;
eAttachment.top = 'bottom';
} else if (top < bounds[1] && eAttachment.top === 'bottom') {
top += height;
eAttachment.top = 'top';
}
}
}
if (changeAttachX === 'target' || changeAttachX === 'both') {
if (left < bounds[0] && tAttachment.left === 'left') {
left += targetWidth;
tAttachment.left = 'right';
}
if (left + width > bounds[2] && tAttachment.left === 'right') {
left -= targetWidth;
tAttachment.left = 'left';
}
}
if (changeAttachX === 'together') {
if (left < bounds[0] && tAttachment.left === 'left') {
if (eAttachment.left === 'right') {
left += targetWidth;
tAttachment.left = 'right';
left += width;
eAttachment.left = 'left';
} else if (eAttachment.left === 'left') {
left += targetWidth;
tAttachment.left = 'right';
left -= width;
eAttachment.left = 'right';
}
} else if (left + width > bounds[2] && tAttachment.left === 'right') {
if (eAttachment.left === 'left') {
left -= targetWidth;
tAttachment.left = 'left';
left -= width;
eAttachment.left = 'right';
} else if (eAttachment.left === 'right') {
left -= targetWidth;
tAttachment.left = 'left';
left += width;
eAttachment.left = 'left';
}
} else if (tAttachment.left === 'center') {
if (left + width > bounds[2] && eAttachment.left === 'left') {
left -= width;
eAttachment.left = 'right';
} else if (left < bounds[0] && eAttachment.left === 'right') {
left += width;
eAttachment.left = 'left';
}
}
}
if (changeAttachY === 'element' || changeAttachY === 'both') {
if (top < bounds[1] && eAttachment.top === 'bottom') {
top += height;
eAttachment.top = 'top';
}
if (top + height > bounds[3] && eAttachment.top === 'top') {
top -= height;
eAttachment.top = 'bottom';
}
}
if (changeAttachX === 'element' || changeAttachX === 'both') {
if (left < bounds[0] && eAttachment.left === 'right') {
left += width;
eAttachment.left = 'left';
}
if (left + width > bounds[2] && eAttachment.left === 'left') {
left -= width;
eAttachment.left = 'right';
}
}
if (typeof pin === 'string') {
pin = (function() {
var _len4, _m, _ref7, _results;
_ref7 = pin.split(',');
_results = [];
for (_m = 0, _len4 = _ref7.length; _m < _len4; _m++) {
p = _ref7[_m];
_results.push(p.trim());
}
return _results;
})();
} else if (pin === true) {
pin = ['top', 'left', 'right', 'bottom'];
}
pin || (pin = []);
pinned = [];
oob = [];
if (top < bounds[1]) {
if (__indexOf.call(pin, 'top') >= 0) {
top = bounds[1];
pinned.push('top');
} else {
oob.push('top');
}
}
if (top + height > bounds[3]) {
if (__indexOf.call(pin, 'bottom') >= 0) {
top = bounds[3] - height;
pinned.push('bottom');
} else {
oob.push('bottom');
}
}
if (left < bounds[0]) {
if (__indexOf.call(pin, 'left') >= 0) {
left = bounds[0];
pinned.push('left');
} else {
oob.push('left');
}
}
if (left + width > bounds[2]) {
if (__indexOf.call(pin, 'right') >= 0) {
left = bounds[2] - width;
pinned.push('right');
} else {
oob.push('right');
}
}
if (pinned.length) {
pinnedClass = (_ref7 = this.options.pinnedClass) != null ? _ref7 : this.getClass('pinned');
addClasses.push(pinnedClass);
for (_m = 0, _len4 = pinned.length; _m < _len4; _m++) {
side = pinned[_m];
addClasses.push("" + pinnedClass + "-" + side);
}
}
if (oob.length) {
oobClass = (_ref8 = this.options.outOfBoundsClass) != null ? _ref8 : this.getClass('out-of-bounds');
addClasses.push(oobClass);
for (_n = 0, _len5 = oob.length; _n < _len5; _n++) {
side = oob[_n];
addClasses.push("" + oobClass + "-" + side);
}
}
if (__indexOf.call(pinned, 'left') >= 0 || __indexOf.call(pinned, 'right') >= 0) {
eAttachment.left = tAttachment.left = false;
}
if (__indexOf.call(pinned, 'top') >= 0 || __indexOf.call(pinned, 'bottom') >= 0) {
eAttachment.top = tAttachment.top = false;
}
if (tAttachment.top !== targetAttachment.top || tAttachment.left !== targetAttachment.left || eAttachment.top !== this.attachment.top || eAttachment.left !== this.attachment.left) {
this.updateAttachClasses(eAttachment, tAttachment);
}
}
defer(function() {
updateClasses(_this.target, addClasses, allClasses);
return updateClasses(_this.element, addClasses, allClasses);
});
return {
top: top,
left: left
};
}
});
}).call(this);
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