h1. jQuery Custom Scrollbar
jQuery Custom Scrollbar is a jQuery plugin that lets you add fully customizable scrollbars to your sites. With the plugin you can apply any css styles you want to your scrollbars.
h2. Features
h2. Requirements
The plugin supports all major browsers: Chrome, Firefox, IE 7+.
To use the plugin you obviously need jQuery (it should work in jQuery 1.4 and later versions).
h2. Download
You can download the latest version "here":https://github.com/mzubala/jquery-custom-scrollbar/raw/master/build/jquery-custom-scrollbar-0.5.5.zip
h2. Demos
In demos folder of this repo, there are some example usages of custom scrollbar and its api. The demos are also available online "here":http://jquery-custom-scrollbar.rocketmind.pl/
h2. Usage
First download and add jquery.custom-scrollbar.js and jquery.custom-scrollbar.css to your site.
Suppose you have a container on your site with some lengthy content and you want to make it scrollable:
Define it's width and height (below some example size is used):
.container {
width: 300px; // you can also use max-width
height: 400px; // you can also use max-height
}
default-skin. Plugin comes with two other predefined skins: gray-skin and modern-skin. You are not limited to that and you can style scrollbar your own way.
Finally call this js code:
$(document).ready(function() {
$(".container").customScrollbar();
});
.container .overview {
width: 1000px;
}
animationSpeed | Number | 300 | Speed of the animation of programmatic scrolling. It's possible to edit it with setAnimationSpeed method. Animation speed equal to 0 means no animation.|
| fixedThumbHeight | Number | undefined | By default thumb height (in case of vertical scrollbar) is calculated automatically depending on viewport and overview height but you can fix thumb height to your chosen pixel value by setting this option. Make sure to not set min-height in css if you set fixedThumbHeight because min-height has priority.|
| fixedThumbWidth | Number | undefined | Option analogical to fixedThumbHeight but applied to thumbs of horizontal scrollbars.|
| hScroll | Boolean | true | Indicates whether or not, horizontal scrollbar should be shown when it's necessary. |
| preventDefaultScroll | Boolean | false | When the scrolling event occurs (e.g. down arrow key, mouse wheel) and it doesn't cause the scrollbar to move (e.g. because the scrollbar is in extreme position), the event is propagated further which will cause the parent container to scroll. If it does cause the scrollbar movement then such event is stopped from propagating further and the parent container won't scroll. This default behaviour can be changed by setting preventDefaultScroll: true. It will cause the custom scrollbar to always stop scrolling event propagation no matter if the scrollbar changed or didn't change its position.|
| skin|String|undefined|A css skin class that will be added to the scrolled container. You can define it in html as well as here in options. Note that skin has to be defined in one of those ways.|
| swipeSpeed|Number|1|Indicates how fast touch scroll should be. When you swipe your finger by x pixels the content will be scrolled by swipeSpeed * x pixels.|
| updateOnWindowResize | Boolean | false | Indicates whether scrollbar should recalculate thumb size when window is resized. See demos/resize.html for an example.|
| vScroll | Boolean | true | Same as above but applies to vertical scrollbar. |
| wheelSpeed|Number|40|Indicates how fast mouse wheel scroll should be. When you make the smallest possible mouse wheel move, the content will be scrolled by wheelSpeed pixels.|
For example:
$("#my-container").customScrollbar({
skin: "default-skin",
hScroll: false,
updateOnWindowResize: true
})
speed - an integer indicating how many milliseconds the animation should last.
It's also possible to set the animation speed upon plugin initialization. By default it equals 300.
Note that you may use this method if want to have some scrolls animated and some without animation - to get rid of the animation just call it with 0.
$(".container").customScrollbar("setAnimationSpeed", 200)
animationSpeed initialization option. Example usage:
$(".container").customScrollbar("scrollTo", "#some-element-inside-container")
x pixels. x should be in range from 0 to scrolled content width. If it's outside that range, content will be scrolled to the start or to the end. To control animation speed use animationSpeed initialization option.
$(".container").customScrollbar("scrollToX", 100)
y pixels. x should be in range from 0 to scrolled content height. If it's outside that range, content will be scrolled to the start or to the end. To control animation speed use animationSpeed initialization option.
$(".container").customScrollbar("scrollToY", 200)
x pixels. x can be positive or negative.
$(".container").customScrollbar("scrollByX", 100)
y pixels. y can be positive or negative.
$(".container").customScrollbar("scrollByY", 200)
keepPosition parameter to decide if the scrollbar should stay in the same position (keepPosition == true) or change position (keepPosition == true) so that the thumb position change is proportional to the size change. The first case is useful if your container changes size and you want to show exactly the same content that was visible before size change. The second case is useful when you're listening to window resize.
$(".container").customScrollbar("resize", true)
$(".container").customScrollbar("remove")
$(".container").on("customScroll", function(event, scrollData) {});
event is standard jquery event object. scrollData is an object with 3 fields holding scroll specific information:
* scrollPercent - floating point number in range 0.0 to 100.0 indicating percentage position of the scrollbar
* scrollDirection - string that can take following 4 values: left, right, up, down - indicates what direction the scrollbar was moved in
* scrollAxis - string indicating which scrollbar was moved: X for horizontal scrollbar and Y for vertical scrollbar
You can also bind handler to that event when initializing scrollbar:
$(".container").customScrollbar({
onCustomScroll: function(event, scrollData) {}
});