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https://github.com/cloudfour/simpleslideview

A nifty little jQuery or Zepto plugin for the simplest of sliding views.
https://github.com/cloudfour/simpleslideview

jquery

Last synced: 3 months ago
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A nifty little jQuery or Zepto plugin for the simplest of sliding views.

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README 

        
# SimpleSlideView



A nifty little jQuery or Zepto plugin for the simplest of sliding views.



* [Explanatory blog post](http://blog.cloudfour.com/simpleslideview/)

* [Basic demo](http://cloudfour.github.io/SimpleSlideView)

* [Responsive demo](http://cloudfour.github.io/SimpleSlideView/responsive.html)



If [Bower](http://bower.io/)'s your thing, you can install this plugin by running `bower install SimpleSlideView` in your project directory.



## History



### 1.1.2

* Fixed bug in `changeView` methods when plugin is inactive.



### 1.1.1

* Updated Zepto to 1.1.3 with `fx` module included.

* Improved conditional checks on some `$.fx`-dependent default values.

* Updated README with information about new Zepto dependency requirements.



### 1.1.0

* View changes now queue to avoid potential conflicts if `changeView` is called before the existing view change has completed.

* jQuery scrolling performance greatly improved.

* The `scrollOnStart` option has been removed. The `scrollOn`, `scrollCallback` and `concurrentScroll` options have been added in its place.

* The `deferHeightChange` option has been replaced with `concurrentHeightChange`. If you were previously setting `deferHeightChange` to `true`, instead set `concurrentHeightChange` to `false`.

* Miscellaneous fixes and tweaks.



### 1.0.0

Happy birthday to _meeee_... ♫



## Dependencies



SimpleSlideView requires either [jQuery](http://jquery.com/) or [Zepto](http://zeptojs.com/) (the default build should be fine).



If using Zepto 1.1.3 or later, you must include the `fx` module in your build. Refer to [Zepto's README](https://github.com/madrobby/zepto#readme) for more info.



### Optional: Scrolling



This plugin was designed to work well with non-fixed layouts, which means it can be helpful to scroll to the top of the window or container prior to a view changing. If a `$.scrollTo` plugin is available, SimpleSlideView will attempt to use it by default. It has been tested with [jquery.scrollTo](https://github.com/flesler/jquery.scrollTo) and [ZeptoScroll](https://github.com/suprMax/ZeptoScroll/).



If you'd like to change this behavior, you can specify your own callback using the `scrollCallback` option.



## Getting started



SimpleSlideView requires two types of elements to be present in your markup:



* A container for the views that will be sliding.

* An element for each of the views themselves. These don't have to be _immediate_ children of the container, but they should be nested somewhere inside of it.



A very simple example:



```html

 

  
...
 

  
...
 

  
...
 



```



You then call `simpleSlideView` on the containing element:



```javascript

$('.container').simpleSlideView();

```



If you'd like to use a different selector than `.view` for the views, you can specify an argument:



```javascript

$('.container').simpleSlideView('.my-view-selector');

```



[More options]() are available and can be passed as an object.



## Navigating between views



Once the plugin is active, only the active view will be visible, so we probably want some way to navigate to the other views. There are two types of navigation that can occur... a "push" (target view animates in from right) or a "pull" (target view animates in from left).



### With HTML



If you want to specify view navigation in your markup, the `data-popview` and `data-pushview` attributes are the way to go.



If you have a link with an `href` that already resolves to a view, just add one or the other attribute:



```html

Backward!

Forward!

```



You can also specify an attribute value. This is useful if you want to use a more complicated selector that would be invalid as an `href`, you want to link to a different destination while the SimpleSlideView is active, or you want to use an element that isn't a link at all:



```html

To the first weird view!


```



### With JavaScript



The `simpleSlideView` method returns an object with methods you can use to navigate with JavaScript.



```javascript

// Instantiates the SimpleSlideView

var slideView = $('.container').simpleSlideView();

// Pushes the view with an ID of 'my-view-selector'

slideView.pushView('#my-view-selector');

```



See methods for more info.



## Getting responsive



A sliding view isn't always appropriate when the viewport can show more content. Luckily, you can turn SimpleSlideView off and on whenever it makes sense for your project using the `toggle`, `on` and `off` methods.



By default, SimpleSlideView will activate itself when initialized, but you can disable this by setting the `deferOn` option to `true`. An example:



```javascript

var slideView = $('.container').simpleSlideView({

  // Do not activate unless the viewport is larger than 768pt

  deferOn: ($(window).width() >= 768)

});



// Turn on/off if window size changes

$(window).on('resize', function(){

  slideView.toggle($(window).width() < 768);

});

```



See [the responsive demo](http://cloudfour.github.io/SimpleSlideView/responsive.html) for a more in-depth example.



## Options



You can pass an object to the `simpleSlideView` method as the first or second argument:



```javascript

// This...

$('.container').simpleSlideView('.my-view-selector', { duration: 250 });

// ...is the same as this:

$('.container').simpleSlideView({ views: '.my-view-selector', duration: 250 });

```



Here are all the options and their defaults:



```coffeescript

# The default view selector. An object will be a

# jQuery or Zepto object, a string will be used

# as a selector within the container.

views: '.view'



# The view that should be initially active. Can

# also be an object or string. If 'null', the first

# view in the container will be used.

activeView: null



# If 'true', SimpleSlideView will not activate

# until the on() method is called.

deferOn: false



# The speed of animations. Defaults to the current

# jQuery or Zepto default.

duration: $.fx.speeds._default



# The easing method to use for animations. Defaults

# to 'ease-out' for Zepto and 'swing' for jQuery.

easing: if Zepto? then 'ease-out' else 'swing'



# If true, animations will act on the 'transform'

# properties rather than 'right' or 'left'. Defaults

# to 'true' for Zepto.

useTransformProps: Zepto?



# When 'true', 3D transforms will be used. Can sometimes

# improve performance. 'true' by default if Modernizr and

# the 'csstransforms3d' test are included.

use3D: Modernizr? and Modernizr.csstransforms3d



# The CSS prefix to use for the 'transform' property.

# Defaults to the one the framework is using (if any).

cssPrefix: if $.fx.cssPrefix? then $.fx.cssPrefix else ''



# If 'true', the height of the container will be resized

# to match the height of the active view (both initially

# and as the views change. You should set to 'false' if

# your container's height is fixed.

resizeHeight: true



# Duration of the height animations when 'resizeHeight'

# is true. If 'null', the value of the duration option

# will be used.

heightDuration: null



# If 'true', the height change will not wait for the

# slide to complete before resizing. This can feel

# snappier but may affect performance.

concurrentHeightChange: ! Zepto?



# If 'start', the scrollCallback will happen before

# the rest of the slide. If 'end', it will happen

# after. If false, scrolling will be disabled.

scrollOn: 'start'



# The callback to use for scrolling when the view

# change completes. Supports jQuery scrollTo,

# ZeptoScroll and no scroll plugin, but you can

# define your own. The callback should expect to

# receive three arguments: a Y-coordinate for the

# intended scroll position, a duration for the

# animation (if supported), and an optional callback

# when the action completes.

scrollCallback: scrollCallback



# Duration of the scroll animation if the callback

# supports it. If 'null', the value of the duration

# option will be used.

scrollDuration: null



# If 'true', the scroll will move to the top of the

# container. If 'false', the top of the window will

# be used.

scrollToContainerTop: true



# If scrollOn is 'start' and this is 'true', the

# slide will not wait for the scroll to complete

# before triggering other events. This can feel

# snappier but may affect performance.

concurrentScroll: ! Zepto?



# If 'true', the height of the viewport will never

# lower. If 'null', the value will be based on whether

# or not resizeHeight and scrollOnStart are both truthy.

# This is useful for avoiding odd animation in browsers

# that resize the viewport as they scroll, such as

# iOS Safari.

maintainViewportHeight: null



# The event that the magic data-attribute events will

# be bound to. If 'false', no events will be bound.

dataAttrEvent: 'click'



# The names of the data attributes to use for the magic

# event bindings.

dataAttr:

  push: 'pushview'

  pop: 'popview'



# Class names that get added to the different elements as

# the plugin does its thing. These have no utility to the

# plugin, they are merely for styling and convenience.

classNames:

  container: 'SimpleSlideView-container'

  view: 'SimpleSlideView-view'

  activeView: 'SimpleSlideView-view-active'



# Names of events that will get triggered. See the

# README for more info.

eventNames:

  on: 'slideViewOn'

  off: 'slideViewOff'

  beforeOn: 'slideViewBeforeOn'

  beforeOff: 'slideViewBeforeOff'

  deferred: 'slideViewDeferred'

  viewChangeStart: 'viewChangeStart'

  viewChangeEnd: 'viewChangeEnd'

```



## Methods



Save the output of the plugin to a variable if you intend to use methods:



```javascript

var slideView = $('.container').simpleSlideView();

slideView.pushView('#view-2');

```



### on, off and toggle



```javascript

on()

off()

toggle(activate)

```



These methods activate or deactivate the plugin. You don't have to fire `on()` unless you've set `deferOn` to `true` or you've called `off()` or `toggle()`.



Without arguments, `toggle()` will call `on()` if the plugin is off and `off()` if the plugin is on. You can also pass a boolean value (`true` for `on`).



### pushView and popView



```javascript

pushView(targetView)

popView(targetView)

```



Will push or pop to `targetView`. This will get passed to `$`, so it can be whatever kind of selector jQuery or Zepto would accept.



These are shortcut methods for...



### changeView



```javascript

changeView(targetView, action)

```



This works the same as `pushView` or `popView`, accept it needs a value for `action` of either `'push'` or `'pop'`.



## Events



These are triggered on the containing element. All event names can be customized using the `eventNames` option.



### viewChangeStart and viewChangeEnd



Triggered at the start and end of any view change (push or pop). In addition to the usual `event` object, your callback can also receive the `targetView` and `action` arguments the `changeView` function did:



```javascript

$('.container').on('viewChangeStart', function (event, targetView, action) {

  console.log(targetView); // Whatever you or a magic method passed

  console.log(action); // 'push' or 'pop'

});

```



### slideViewOn and slideViewOff



These events are triggered when the plugin is activated or deactivated. This can be useful if you want to use the plugin in some layouts but not others. You can see an example of this in [the responsive demo](http://cloudfour.github.io/SimpleSlideView/responsive.html).



### slideViewBeforeOn and slideViewBeforeOff



Similar to the "on" and "off" events, except they are triggered _before_ the plugin begins to be activated or deactivated. See [the responsive demo](http://cloudfour.github.io/SimpleSlideView/responsive.html) for an example.



### slideViewDeferred



Triggered if the plugin is initialized but `deferOn` is truthy. See [the responsive demo](http://cloudfour.github.io/SimpleSlideView/responsive.html) for an example.



## Known issues and limitations



### Hashes and maintaining history



There are entire libraries devoted to maintaining history with JavaScript. Frankly, the task seemed too large for this library to handle. If you have ideas for integrating history, please consider contributing to the project.



### Multi-view transitions



Some interfaces will animate _multiple_ views in a row if you pop a view far into its history. This isn't part of SimpleSlideView right now because we don't maintain history and we don't require views exist in any particular hierarchy we could infer history from.



### Dynamic content



This plugin was designed with static webpages in mind. It currently maintains jQuery/Zepto objects for the views available to it when instantiated. Because of this, it is not particularly well-suited for interfaces that load a large amount of content dynamically. There is [an existing issue for this](https://github.com/cloudfour/SimpleSlideView/issues/7); additional feedback, ideas and pull requests are welcome.



### Animation performance



We've noticed that some pages perform better with CSS animations and some with JavaScript. Speaking broadly, pages with a _lot_ of complex or animating content tend to perform better with JS, while most other pages seem to perform better with CSS. We hope that by relying on the `$.animate` method and providing options for `useTransformProps` and `use3D` we've given you the ability to experiment with what works best for your project.



As of 1.1.x, you can now disable some concurrent animations by setting `concurrentScroll` and/or `concurrentHeightChange` to `false`. This may improve performance for some projects.



### Nested instances



You will probably run into conflicts if you try nesting one sliding view in another. You can remedy some conflicts by specifying different names for conflicting attributes. For example:



```javascript

var parentSlideView = $('#parent').slideView({

  dataAttr: {

    push: 'parent-pushview',

    pop: 'parent-popview'

  }

});

var childSlideView = $('#child').slideView({

  dataAttr: {

    push: 'child-pushview',

    pop: 'child-popview'

  }

});

```



## Building from source



SimpleSlideView is written in [CoffeeScript](http://coffeescript.org/). We've included a [Grunt](http://gruntjs.com/) config file to make it easy to contribute. With [node.js](http://gruntjs.com/) installed, `cd` to the project directory and follow these steps:



1. Install the Grunt CLI (if you haven't already): `npm install -g grunt-cli`

1. Install other dependencies: `npm install`

1. Watch the source file for changes: `grunt`



As you save `simpleslideview.coffee`, the Grunt task will compile and minify automatically. You can stop this by hitting `Ctrl+C`.



## License



Released under the [MIT License](http://www.opensource.org/licenses/MIT).



This repository contains other libraries that may or may not fall under the same license:



* [FastClick](https://github.com/ftlabs/fastclick)

* [jQuery](https://github.com/jquery/jquery)

* [jQuery.ScrollTo](https://github.com/flesler/jquery.scrollTo)

* [Modernizr](https://github.com/Modernizr/Modernizr)

* [Zepto](https://github.com/madrobby/zepto)

* [ZeptoScroll](https://github.com/suprMax/ZeptoScroll)