cartodb4/perfect-scrollbar
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Add a getEventClassName() function.

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Each scrollbar object should have its own event class name. Unless,
When the one scrollbar is destroyed, another one's event will be
unbinded too.

The getEventClassName() function returns a unique event class name.
This commit is contained in:
Hyunje Alex Jun 2014-01-21 12:22:04 +09:00
parent d58e109d98
commit b8d8218c03
1 changed files with 40 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
src/perfect-scrollbar.js
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@ -25,6 +25,15 @@
scrollYMarginOffset: 0 scrollYMarginOffset: 0
}; };
var getEventClassName = (function () {
var incrementingId = 0;
return function () {
var id = incrementingId;
incrementingId += 1;
return '.perfect-scrollbar-' + id;
};
}());
$.fn.perfectScrollbar = function (suppliedSettings, option) { $.fn.perfectScrollbar = function (suppliedSettings, option) {
return this.each(function () { return this.each(function () {
@ -81,7 +90,8 @@
scrollbarXBottom = parseInt($scrollbarXRail.css('bottom'), 10), scrollbarXBottom = parseInt($scrollbarXRail.css('bottom'), 10),
scrollbarYHeight, scrollbarYHeight,
scrollbarYTop, scrollbarYTop,
scrollbarYRight = parseInt($scrollbarYRail.css('right'), 10); scrollbarYRight = parseInt($scrollbarYRail.css('right'), 10),
eventClassName = getEventClassName();
var updateContentScrollTop = function (currentTop, deltaY) { var updateContentScrollTop = function (currentTop, deltaY) {
var newTop = currentTop + deltaY, var newTop = currentTop + deltaY,
@ -179,7 +189,7 @@
var currentLeft, var currentLeft,
currentPageX; currentPageX;
$scrollbarX.bind('mousedown.perfect-scrollbar', function (e) { $scrollbarX.bind('mousedown' + eventClassName, function (e) {
currentPageX = e.pageX; currentPageX = e.pageX;
currentLeft = $scrollbarX.position().left; currentLeft = $scrollbarX.position().left;
$scrollbarXRail.addClass('in-scrolling'); $scrollbarXRail.addClass('in-scrolling');
@ -187,7 +197,7 @@
e.preventDefault(); e.preventDefault();
}); });
$(document).bind('mousemove.perfect-scrollbar', function (e) { $(document).bind('mousemove' + eventClassName, function (e) {
if ($scrollbarXRail.hasClass('in-scrolling')) { if ($scrollbarXRail.hasClass('in-scrolling')) {
updateContentScrollLeft(currentLeft, e.pageX - currentPageX); updateContentScrollLeft(currentLeft, e.pageX - currentPageX);
e.stopPropagation(); e.stopPropagation();
@ -195,7 +205,7 @@
} }
}); });
$(document).bind('mouseup.perfect-scrollbar', function (e) { $(document).bind('mouseup' + eventClassName, function (e) {
if ($scrollbarXRail.hasClass('in-scrolling')) { if ($scrollbarXRail.hasClass('in-scrolling')) {
$scrollbarXRail.removeClass('in-scrolling'); $scrollbarXRail.removeClass('in-scrolling');
} }
@ -209,7 +219,7 @@
var currentTop, var currentTop,
currentPageY; currentPageY;
$scrollbarY.bind('mousedown.perfect-scrollbar', function (e) { $scrollbarY.bind('mousedown' + eventClassName, function (e) {
currentPageY = e.pageY; currentPageY = e.pageY;
currentTop = $scrollbarY.position().top; currentTop = $scrollbarY.position().top;
$scrollbarYRail.addClass('in-scrolling'); $scrollbarYRail.addClass('in-scrolling');
@ -217,7 +227,7 @@
e.preventDefault(); e.preventDefault();
}); });
$(document).bind('mousemove.perfect-scrollbar', function (e) { $(document).bind('mousemove' + eventClassName, function (e) {
if ($scrollbarYRail.hasClass('in-scrolling')) { if ($scrollbarYRail.hasClass('in-scrolling')) {
updateContentScrollTop(currentTop, e.pageY - currentPageY); updateContentScrollTop(currentTop, e.pageY - currentPageY);
e.stopPropagation(); e.stopPropagation();
@ -225,7 +235,7 @@
} }
}); });
$(document).bind('mouseup.perfect-scrollbar', function (e) { $(document).bind('mouseup' + eventClassName, function (e) {
if ($scrollbarYRail.hasClass('in-scrolling')) { if ($scrollbarYRail.hasClass('in-scrolling')) {
$scrollbarYRail.removeClass('in-scrolling'); $scrollbarYRail.removeClass('in-scrolling');
} }
@ -262,7 +272,7 @@
// bind handlers // bind handlers
var bindMouseWheelHandler = function () { var bindMouseWheelHandler = function () {
var shouldPrevent = false; var shouldPrevent = false;
$this.bind('mousewheel.perfect-scrollbar', function (e, delta, deltaX, deltaY) { $this.bind('mousewheel' + eventClassName, function (e, delta, deltaX, deltaY) {
if (!settings.useBothWheelAxes) { if (!settings.useBothWheelAxes) {
// deltaX will only be used for horizontal scrolling and deltaY will // deltaX will only be used for horizontal scrolling and deltaY will
// only be used for vertical scrolling - this is the default // only be used for vertical scrolling - this is the default
@ -296,7 +306,7 @@
}); });
// fix Firefox scroll problem // fix Firefox scroll problem
$this.bind('MozMousePixelScroll.perfect-scrollbar', function (e) { $this.bind('MozMousePixelScroll' + eventClassName, function (e) {
if (shouldPrevent) { if (shouldPrevent) {
e.preventDefault(); e.preventDefault();
} }
@ -305,15 +315,15 @@
var bindKeyboardHandler = function () { var bindKeyboardHandler = function () {
var hovered = false; var hovered = false;
$this.bind('mouseenter.perfect-scrollbar', function (e) { $this.bind('mouseenter' + eventClassName, function (e) {
hovered = true; hovered = true;
}); });
$this.bind('mouseleave.perfect-scrollbar', function (e) { $this.bind('mouseleave' + eventClassName, function (e) {
hovered = false; hovered = false;
}); });
var shouldPrevent = false; var shouldPrevent = false;
$(document).bind('keydown.perfect-scrollbar', function (e) { $(document).bind('keydown' + eventClassName, function (e) {
if (!hovered) { if (!hovered) {
return; return;
} }
@ -364,8 +374,8 @@
var bindRailClickHandler = function () { var bindRailClickHandler = function () {
var stopPropagation = function (e) { e.stopPropagation(); }; var stopPropagation = function (e) { e.stopPropagation(); };
$scrollbarY.bind('click.perfect-scrollbar', stopPropagation); $scrollbarY.bind('click' + eventClassName, stopPropagation);
$scrollbarYRail.bind('click.perfect-scrollbar', function (e) { $scrollbarYRail.bind('click' + eventClassName, function (e) {
var halfOfScrollbarLength = parseInt(scrollbarYHeight / 2, 10), var halfOfScrollbarLength = parseInt(scrollbarYHeight / 2, 10),
positionTop = e.pageY - $scrollbarYRail.offset().top - halfOfScrollbarLength, positionTop = e.pageY - $scrollbarYRail.offset().top - halfOfScrollbarLength,
maxPositionTop = containerHeight - scrollbarYHeight, maxPositionTop = containerHeight - scrollbarYHeight,
@ -380,8 +390,8 @@
$this.scrollTop((contentHeight - containerHeight) * positionRatio); $this.scrollTop((contentHeight - containerHeight) * positionRatio);
}); });
$scrollbarX.bind('click.perfect-scrollbar', stopPropagation); $scrollbarX.bind('click' + eventClassName, stopPropagation);
$scrollbarXRail.bind('click.perfect-scrollbar', function (e) { $scrollbarXRail.bind('click' + eventClassName, function (e) {
var halfOfScrollbarLength = parseInt(scrollbarXWidth / 2, 10), var halfOfScrollbarLength = parseInt(scrollbarXWidth / 2, 10),
positionLeft = e.pageX - $scrollbarXRail.offset().left - halfOfScrollbarLength, positionLeft = e.pageX - $scrollbarXRail.offset().left - halfOfScrollbarLength,
maxPositionLeft = containerWidth - scrollbarXWidth, maxPositionLeft = containerWidth - scrollbarXWidth,
@ -413,14 +423,14 @@
breakingProcess = null, breakingProcess = null,
inGlobalTouch = false; inGlobalTouch = false;
$(window).bind("touchstart.perfect-scrollbar", function (e) { $(window).bind("touchstart" + eventClassName, function (e) {
inGlobalTouch = true; inGlobalTouch = true;
}); });
$(window).bind("touchend.perfect-scrollbar", function (e) { $(window).bind("touchend" + eventClassName, function (e) {
inGlobalTouch = false; inGlobalTouch = false;
}); });
$this.bind("touchstart.perfect-scrollbar", function (e) { $this.bind("touchstart" + eventClassName, function (e) {
var touch = e.originalEvent.targetTouches[0]; var touch = e.originalEvent.targetTouches[0];
startCoords.pageX = touch.pageX; startCoords.pageX = touch.pageX;
@ -434,7 +444,7 @@
e.stopPropagation(); e.stopPropagation();
}); });
$this.bind("touchmove.perfect-scrollbar", function (e) { $this.bind("touchmove" + eventClassName, function (e) {
if (!inGlobalTouch && e.originalEvent.targetTouches.length === 1) { if (!inGlobalTouch && e.originalEvent.targetTouches.length === 1) {
var touch = e.originalEvent.targetTouches[0]; var touch = e.originalEvent.targetTouches[0];
@ -456,7 +466,7 @@
e.preventDefault(); e.preventDefault();
} }
}); });
$this.bind("touchend.perfect-scrollbar", function (e) { $this.bind("touchend" + eventClassName, function (e) {
clearInterval(breakingProcess); clearInterval(breakingProcess);
breakingProcess = setInterval(function () { breakingProcess = setInterval(function () {
if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) { if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {
@ -473,15 +483,15 @@
}; };
var bindScrollHandler = function () { var bindScrollHandler = function () {
$this.bind('scroll.perfect-scrollbar', function (e) { $this.bind('scroll' + eventClassName, function (e) {
updateBarSizeAndPosition(); updateBarSizeAndPosition();
}); });
}; };
var destroy = function () { var destroy = function () {
$this.unbind('.perfect-scrollbar'); $this.unbind(eventClassName);
$(window).unbind('.perfect-scrollbar'); $(window).unbind(eventClassName);
$(document).unbind('.perfect-scrollbar'); $(document).unbind(eventClassName);
$this.data('perfect-scrollbar', null); $this.data('perfect-scrollbar', null);
$this.data('perfect-scrollbar-update', null); $this.data('perfect-scrollbar-update', null);
$this.data('perfect-scrollbar-destroy', null); $this.data('perfect-scrollbar-destroy', null);
@ -515,11 +525,11 @@
var mouseleave = function () { var mouseleave = function () {
$(this).removeClass('hover'); $(this).removeClass('hover');
}; };
$this.bind('mouseenter.perfect-scrollbar', mouseenter).bind('mouseleave.perfect-scrollbar', mouseleave); $this.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
$scrollbarXRail.bind('mouseenter.perfect-scrollbar', mouseenter).bind('mouseleave.perfect-scrollbar', mouseleave); $scrollbarXRail.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
$scrollbarYRail.bind('mouseenter.perfect-scrollbar', mouseenter).bind('mouseleave.perfect-scrollbar', mouseleave); $scrollbarYRail.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
$scrollbarX.bind('mouseenter.perfect-scrollbar', mouseenter).bind('mouseleave.perfect-scrollbar', mouseleave); $scrollbarX.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
$scrollbarY.bind('mouseenter.perfect-scrollbar', mouseenter).bind('mouseleave.perfect-scrollbar', mouseleave); $scrollbarY.bind('mouseenter' + eventClassName, mouseenter).bind('mouseleave' + eventClassName, mouseleave);
}; };
var fixIe6ScrollbarPosition = function () { var fixIe6ScrollbarPosition = function () {