├── .gitignore ├── README.md ├── bower.json ├── demo ├── index.html └── index.responsive.html ├── lib ├── example.responsive.js └── jquery.offcanvasmenu.js ├── src ├── example.responsive.coffee └── jquery.offcanvasmenu.coffee └── vendor ├── fastclick.js ├── jquery-1.9.1.min.js ├── jquery.csswatch.js ├── modernizr.custom.js └── zepto-1.0.min.js /.gitignore: -------------------------------------------------------------------------------- 1 | .*.sw* 2 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # offCanvasMenu 2 | 3 | **offCanvasMenu** is a jQuery/Zepto plugin that provides an easy way to implement an off-canvas toggling menu, a navigation metaphor made popular by mobile applications. 4 | 5 | When activated, offCanvasMenu "slides" the menu element into view, "pushing" other content to the side. 6 | 7 | ## Setup 8 | 9 | ### 1. Include jQuery (or Zepto) 10 | 11 | Our example comes with jQuery 1.9.1 (but 2.0.0 should work as well). 12 | 13 | 14 | 15 | If you'd prefer, you can use [Zepto](http://zeptojs.com/) instead. 16 | 17 | 18 | 19 | ### 2. Include Modernizr (Optional) 20 | 21 | If you're using jQuery but want CSS transitions (Super swank! So much prettier!), you'll need Modernizr. Our example comes with a custom build that only contains the tests needed. 22 | 23 | 24 | 25 | You can check out our [Modernizr build details](http://modernizr.com/download/#-csstransforms-csstransitions-addtest-prefixed-teststyles-testprop-testallprops-hasevent-prefixes-domprefixes). 26 | 27 | **Needed tests** (if you want to add to an existing Modernizr build): 28 | 29 | * `csstransforms` 30 | * `csstransitions` 31 | 32 | *Note*: Modernizr is optional (and not at all necessary if you're using Zepto). If you don't include it, the plugin will fall back to JS animations. 33 | 34 | ### 3. Include the plugin 35 | 36 | 37 | 38 | ### 4. Initialize your menu! 39 | 40 | $.offCanvasMenu(); 41 | 42 | #### Options 43 | 44 | $.offCanvasMenu({ 45 | direction : 'left', 46 | coverage : '70%', 47 | trigger : '#menu-trigger', 48 | menu : '#menu', 49 | duration : 250, 50 | container : 'body', 51 | classes : { 52 | inner : 'inner-wrapper', 53 | outer : 'outer-wrapper', 54 | container: 'off-canvas-menu', 55 | open : 'menu-open' 56 | }, 57 | transEndEventNames: { 58 | 'WebkitTransition' : 'webkitTransitionEnd', 59 | 'MozTransition' : 'transitionend', 60 | 'OTransition' : 'oTransitionEnd otransitionend', 61 | 'msTransition' : 'MSTransitionEnd', 62 | 'transition' : 'transitionend' 63 | } 64 | }); 65 | 66 | #### Options you may wish to change 67 | 68 | * `direction`: (string) Direction from which the menu enters the containing element. Valid values are `left` or `right`. Default `left`. 69 | * `coverage`: (string) Width (in CSS units) of the menu when it is open/active. Relative units are relative to the `container` element. In all but the most experimental cases this is the `body` element, which means this effectively translates to coverage of the visible viewport. `px` or other non-percentage units are OK, but you must include the unit. Default is `70%`. We haven't tested with much variation to that! 70 | * `trigger`: jQuery selector for the element that should trigger the show/hide of the menu. Default `#menu-trigger`. 71 | * `menu`: jQuery selector for the menu element itself. Default `#menu`. 72 | 73 | #### Other options 74 | 75 | For the most part, you'll want to leave these alone; they're there in case you run into namespace conflicts in CSS or other deeper issues. 76 | 77 | * `duration`: The time the animation should take to complete in milliseconds. 78 | * `container`: Nominally it should be possible to use a different container element other than the `body` element that is the default. But we haven't tried it! 79 | * `classes` : The class names that get assigned to different elements needed to make the menu work. You can change these if you have a conflict or other burning desire for change. 80 | * `transEndEventNames`: When CSS transitions are used we attach some events to the `transitionend` callback, which can differ in name browser-to-browser. We use a method similar to [Modernizr](http://modernizr.com/docs/#prefixed) and [Twitter Bootstrap](https://github.com/twitter/bootstrap/blob/master/js/bootstrap-transition.js) for determining the event name, referencing the keys in this list. 81 | 82 | ### 5. Functions 83 | 84 | * `on()`: You'll usually run this function right after initializing the menu. It causes the menu to be moved off-canvas and enables toggle(), show(), and hide(). 85 | * `off()`: This function causes the menu to move to its original position and disables toggle(), show(), and hide(). 86 | * `toggle()`: Toggles the menu. 87 | * `show()`: Shows the menu. 88 | * `hide()`: Hides the menu. 89 | 90 | ## Known Issues 91 | 92 | ### Android animation bugs 93 | 94 | Some versions of the Android browser handle percentage transforms [rather strangely](http://css-tricks.com/forums/discussion/20269/transform-translate-percentages-and-android/p1). Specifying a non-percentage value for `coverage` should alleviate the issue. 95 | 96 | ## License 97 | 98 | Released under the [MIT License](http://www.opensource.org/licenses/MIT). 99 | 100 | This repository contains other libraries that may or may not fall under the same license: 101 | 102 | * [FastClick](https://github.com/ftlabs/fastclick) 103 | * [jQuery](https://github.com/jquery/jquery) 104 | * [jQuery csswatch](https://github.com/leifcr/jquery-csswatch/) 105 | * [Modernizr](https://github.com/Modernizr/Modernizr) 106 | * [Zepto](https://github.com/madrobby/zepto) 107 | -------------------------------------------------------------------------------- /bower.json: -------------------------------------------------------------------------------- 1 | { 2 | "name" : "offCanvasMenu", 3 | "description" : "A jQuery/Zepto plugin that provides an easy way to implement an off-canvas toggling menu, a navigation metaphor made popular by mobile applications.", 4 | "url" : "http://cloudfour.github.io/offCanvasMenu/", 5 | "main" : "./lib/jquery.offcanvasmenu.js", 6 | "version" : "1.1.0", 7 | 8 | "keywords" : [ 9 | "jquery", 10 | "offcanvas", 11 | "responsive", 12 | "navigation" 13 | ], 14 | 15 | "author": { 16 | "name" : "CloudFour", 17 | "email" : "info@cloudfour.com" 18 | }, 19 | 20 | "ignore": [ 21 | "demo", 22 | "vendor" 23 | ], 24 | 25 | "dependencies" : { 26 | "jquery": "~1.9.1", 27 | "fastclick": "~0.6.7" 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /demo/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | offCanvasMenu Example 7 | 103 | 104 | 105 | 106 | 107 |
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116 | 117 | 124 | 125 | 126 | 127 | 128 | 129 | 146 | 147 | 148 | 149 | -------------------------------------------------------------------------------- /demo/index.responsive.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | offCanvasMenu Responsive Example 7 | 110 | 111 | 112 | 113 | 114 |
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123 | 124 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | -------------------------------------------------------------------------------- /lib/example.responsive.js: -------------------------------------------------------------------------------- 1 | // Generated by CoffeeScript 1.6.3 2 | (function() { 3 | jQuery(function() { 4 | var $, configureMenus, menu, menuTrigger; 5 | $ = jQuery; 6 | menuTrigger = $('#menu-trigger'); 7 | menu = $.offCanvasMenu({ 8 | direction: 'right', 9 | coverage: '70%' 10 | }); 11 | (configureMenus = function(display) { 12 | switch (display) { 13 | case 'block': 14 | menu.on(); 15 | break; 16 | case 'none': 17 | menu.off(); 18 | break; 19 | default: 20 | return; 21 | } 22 | })(menuTrigger.css('display')); 23 | menuTrigger.csswatch({ 24 | props: 'display' 25 | }).on('css-change', function(event, change) { 26 | return configureMenus(change.display); 27 | }); 28 | return FastClick.attach(document.body); 29 | }); 30 | 31 | }).call(this); 32 | -------------------------------------------------------------------------------- /lib/jquery.offcanvasmenu.js: -------------------------------------------------------------------------------- 1 | // Generated by CoffeeScript 1.6.3 2 | (function() { 3 | var $; 4 | 5 | $ = typeof jQuery !== "undefined" && jQuery !== null ? jQuery : Zepto; 6 | 7 | $.offCanvasMenu = function(options) { 8 | var actions, backfaceCss, baseCSS, body, container, cssSupport, head, inner, innerWrapper, menu, menuLeft, outer, outerWrapper, settings, transEndEventName, transformPosition, transformPrefix, trigger; 9 | settings = { 10 | direction: "left", 11 | coverage: "70%", 12 | menu: "#menu", 13 | trigger: "#menu-trigger", 14 | duration: 250, 15 | use3D: (typeof Modernizr !== "undefined" && Modernizr !== null) && Modernizr.csstransforms3d, 16 | container: 'body', 17 | classes: { 18 | inner: 'inner-wrapper', 19 | outer: 'outer-wrapper', 20 | container: 'off-canvas-menu', 21 | open: 'menu-open' 22 | }, 23 | transEndEventNames: { 24 | 'WebkitTransition': 'webkitTransitionEnd', 25 | 'MozTransition': 'transitionend', 26 | 'OTransition': 'oTransitionEnd otransitionend', 27 | 'msTransition': 'MSTransitionEnd', 28 | 'transition': 'transitionend' 29 | } 30 | }; 31 | settings = $.extend(settings, options); 32 | cssSupport = (typeof Zepto === "undefined" || Zepto === null) && (typeof Modernizr !== "undefined" && Modernizr !== null) && Modernizr.csstransforms && Modernizr.csstransitions; 33 | if (cssSupport) { 34 | transformPrefix = Modernizr.prefixed('transform').replace(/([A-Z])/g, function(str, m1) { 35 | return '-' + m1.toLowerCase(); 36 | }).replace(/^ms-/, '-ms-'); 37 | transEndEventName = settings.transEndEventNames[Modernizr.prefixed('transition')]; 38 | } 39 | head = $('head'); 40 | body = $(settings.container); 41 | trigger = $(settings.trigger); 42 | menu = $(settings.menu); 43 | transformPosition = settings.direction === "left" ? settings.coverage : "-" + settings.coverage; 44 | menuLeft = settings.direction === "left" ? "-" + settings.coverage : "100%"; 45 | container = settings.container + "." + settings.classes.container; 46 | inner = container + " ." + settings.classes.inner; 47 | outer = container + " ." + settings.classes.outer; 48 | outerWrapper = $({}); 49 | innerWrapper = $({}); 50 | backfaceCss = ""; 51 | if (settings.use3D) { 52 | backfaceCss = "-webkit-backface-visibility: hidden;"; 53 | } 54 | baseCSS = ""; 55 | head.append(baseCSS); 56 | actions = { 57 | on: function() { 58 | body.children(':not(script)').wrapAll('
'); 59 | outerWrapper = $("." + settings.classes.outer); 60 | outerWrapper.wrapInner('
'); 61 | innerWrapper = $("." + settings.classes.inner); 62 | if (window.location.hash === settings.menu) { 63 | window.location.hash = ''; 64 | } 65 | trigger.find("a").add(trigger).each(function() { 66 | $(this).data("href", $(this).attr("href")); 67 | return $(this).attr("href", ""); 68 | }); 69 | body.addClass(settings.classes.container); 70 | return trigger.on("click", function(e) { 71 | e.preventDefault(); 72 | if (cssSupport || (typeof Zepto !== "undefined" && Zepto !== null)) { 73 | actions.pauseClicks(); 74 | } 75 | return actions.toggle(); 76 | }); 77 | }, 78 | off: function() { 79 | trigger.find("a").add(trigger).each(function() { 80 | $(this).attr("href", $(this).data("href")); 81 | return $(this).data("href", ""); 82 | }); 83 | actions.hide(); 84 | body.removeClass(settings.classes.container); 85 | trigger.off("click"); 86 | if (cssSupport) { 87 | innerWrapper.off(transEndEventName); 88 | } 89 | actions.clearHeights(); 90 | innerWrapper.unwrap(); 91 | return innerWrapper.children().unwrap(); 92 | }, 93 | toggle: function() { 94 | if (!$(container).length) { 95 | return false; 96 | } 97 | if (body.hasClass(settings.classes.open) === true) { 98 | return actions.hide(); 99 | } else { 100 | return actions.show(); 101 | } 102 | }, 103 | show: function() { 104 | if (!$(container).length) { 105 | return false; 106 | } 107 | actions.setHeights(); 108 | actions.animate(transformPosition); 109 | $(window).on("resize", actions.setHeights); 110 | return body.addClass(settings.classes.open); 111 | }, 112 | hide: function() { 113 | if (!$(container).length) { 114 | return false; 115 | } 116 | actions.animate(0); 117 | $(window).off("resize", actions.setHeights); 118 | return body.removeClass(settings.classes.open); 119 | }, 120 | animate: function(position) { 121 | var animationCallback, innerWrapperCSS; 122 | if (!position) { 123 | animationCallback = actions.clearHeights; 124 | } 125 | if (typeof Zepto !== "undefined" && Zepto !== null) { 126 | return innerWrapper.animate({ 127 | "translateX": position 128 | }, settings.duration, "ease", animationCallback); 129 | } else if (cssSupport) { 130 | innerWrapperCSS = { 131 | transition: transformPrefix + " " + settings.duration + "ms ease" 132 | }; 133 | innerWrapperCSS[transformPrefix] = "translateX(" + position + ")"; 134 | innerWrapper.css(innerWrapperCSS); 135 | if (!position) { 136 | return innerWrapper.on(transEndEventName, function() { 137 | actions.clearHeights(); 138 | return innerWrapper.off(transEndEventName); 139 | }); 140 | } 141 | } else { 142 | return innerWrapper.animate({ 143 | left: position 144 | }, settings.duration, animationCallback); 145 | } 146 | }, 147 | setHeights: function() { 148 | var height; 149 | actions.clearHeights(); 150 | height = Math.max($(window).height(), $(document).height(), body.prop('scrollHeight')); 151 | outerWrapper.css("height", height); 152 | if (height > innerWrapper.height()) { 153 | innerWrapper.css("height", height); 154 | } 155 | if (height > menu.height()) { 156 | return menu.css("height", height); 157 | } 158 | }, 159 | clearHeights: function() { 160 | return outerWrapper.add(innerWrapper).add(menu).css("height", ""); 161 | }, 162 | pauseClicks: function() { 163 | body.on("click", function(e) { 164 | e.preventDefault(); 165 | return e.stopPropagation(); 166 | }); 167 | return setTimeout((function() { 168 | return body.off("click"); 169 | }), settings.duration * 2); 170 | } 171 | }; 172 | return { 173 | on: actions.on, 174 | off: actions.off, 175 | toggle: actions.toggle, 176 | show: actions.show, 177 | hide: actions.hide 178 | }; 179 | }; 180 | 181 | }).call(this); 182 | -------------------------------------------------------------------------------- /src/example.responsive.coffee: -------------------------------------------------------------------------------- 1 | jQuery -> 2 | $ = jQuery 3 | menuTrigger = $('#menu-trigger') 4 | 5 | menu = $.offCanvasMenu 6 | direction : 'right' 7 | coverage : '70%' 8 | 9 | (configureMenus = (display) -> 10 | switch display 11 | when 'block' then menu.on() 12 | when 'none' then menu.off() 13 | else return 14 | return 15 | )(menuTrigger.css 'display') 16 | 17 | menuTrigger.csswatch 18 | props : 'display' 19 | .on 'css-change', (event, change) -> 20 | configureMenus change.display 21 | 22 | FastClick.attach document.body 23 | 24 | -------------------------------------------------------------------------------- /src/jquery.offcanvasmenu.coffee: -------------------------------------------------------------------------------- 1 | $ = if jQuery? then jQuery else Zepto 2 | $.offCanvasMenu = (options) -> 3 | settings = 4 | direction: "left" 5 | coverage : "70%" # Treated as string (units should be included) 6 | menu : "#menu" 7 | trigger : "#menu-trigger" 8 | duration : 250 9 | 10 | # When 'true', 3D transforms will be used. Can sometimes 11 | # improve performance. 'true' by default if Modernizr and 12 | # the 'csstransforms3d' test are included. 13 | use3D: Modernizr? and Modernizr.csstransforms3d 14 | 15 | # Settings after this are here for conflict avoidance but shouldn't need to be tweaked 16 | container: 'body' 17 | classes: 18 | inner : 'inner-wrapper' 19 | outer : 'outer-wrapper' 20 | container: 'off-canvas-menu' 21 | open : 'menu-open' 22 | transEndEventNames: 23 | 'WebkitTransition' : 'webkitTransitionEnd' 24 | 'MozTransition' : 'transitionend' 25 | 'OTransition' : 'oTransitionEnd otransitionend' 26 | 'msTransition' : 'MSTransitionEnd' 27 | 'transition' : 'transitionend' 28 | settings = $.extend settings, options 29 | 30 | # If we're using jQuery and Modernizr is available, detect CSS support 31 | cssSupport = (!Zepto? and Modernizr? and Modernizr.csstransforms and Modernizr.csstransitions) 32 | # If CSS is supported, determine vendor-specific prefix and event names 33 | if cssSupport 34 | transformPrefix = Modernizr.prefixed('transform').replace(/([A-Z])/g, (str,m1) -> return '-' + m1.toLowerCase()).replace(/^ms-/,'-ms-') 35 | # Get the transition end event based on the transition prefix property 36 | transEndEventName = settings.transEndEventNames[Modernizr.prefixed 'transition'] 37 | 38 | head = $('head') 39 | body = $(settings.container) 40 | trigger = $(settings.trigger) 41 | menu = $(settings.menu) 42 | 43 | transformPosition = if settings.direction is "left" then settings.coverage else "-" + settings.coverage 44 | menuLeft = if settings.direction is "left" then "-" + settings.coverage else "100%" 45 | container = settings.container + "." + settings.classes.container 46 | inner = container + " ." + settings.classes.inner 47 | outer = container + " ." + settings.classes.outer 48 | outerWrapper = $({}) 49 | innerWrapper = $({}) 50 | backfaceCss = "" 51 | 52 | if settings.use3D 53 | backfaceCss = "-webkit-backface-visibility: hidden;" 54 | 55 | baseCSS = "" 75 | head.append baseCSS 76 | 77 | actions = 78 | on: () -> 79 | # Excluding scripts solves Zepto bug with wrapAll/wrapInner on body 80 | body.children(':not(script)').wrapAll '
' 81 | outerWrapper = $("." + settings.classes.outer) 82 | outerWrapper.wrapInner '
' 83 | innerWrapper = $("." + settings.classes.inner) 84 | if window.location.hash == settings.menu 85 | # On the off chance the menu is activated when the browser is 86 | # pointing at the hash target for the menu element, we need 87 | # to rectify that or the menu will not close properly. This is 88 | # an uncommon state. 89 | window.location.hash = '' 90 | # Remove the possibility of the trigger containing hrefs with hashes 91 | trigger.find("a").add(trigger).each -> 92 | $(@).data "href", $(@).attr("href") 93 | $(@).attr "href", "" 94 | body.addClass settings.classes.container 95 | trigger.on "click", (e) -> 96 | e.preventDefault() 97 | actions.pauseClicks() if (cssSupport || Zepto?) 98 | actions.toggle() 99 | 100 | off: () -> 101 | trigger.find("a").add(trigger).each -> 102 | $(@).attr "href", $(@).data("href") 103 | $(@).data "href", "" 104 | actions.hide() 105 | body.removeClass settings.classes.container 106 | trigger.off "click" 107 | # Make sure we unbind transitionend events 108 | innerWrapper.off transEndEventName if cssSupport 109 | # Make sure heights are cleared (esp. important for responsive sites) 110 | actions.clearHeights() 111 | # Remove wrappers 112 | innerWrapper.unwrap() 113 | innerWrapper.children().unwrap() 114 | 115 | toggle: () -> 116 | unless $(container).length then return false 117 | if body.hasClass(settings.classes.open) is true 118 | actions.hide() 119 | else 120 | actions.show() 121 | 122 | show: () -> 123 | unless $(container).length then return false 124 | actions.setHeights() 125 | actions.animate transformPosition 126 | $(window).on "resize", actions.setHeights 127 | body.addClass settings.classes.open 128 | 129 | hide: () -> 130 | unless $(container).length then return false 131 | actions.animate 0 132 | $(window).off "resize", actions.setHeights 133 | body.removeClass settings.classes.open 134 | 135 | animate: (position) -> 136 | animationCallback = actions.clearHeights if !position 137 | if Zepto? 138 | innerWrapper.animate "translateX": position, settings.duration, "ease", animationCallback 139 | else if cssSupport 140 | innerWrapperCSS = 141 | transition: transformPrefix + " " + settings.duration + "ms ease" 142 | innerWrapperCSS[transformPrefix] = "translateX(" + position + ")" 143 | innerWrapper.css innerWrapperCSS 144 | if !position then innerWrapper.on transEndEventName, () -> 145 | actions.clearHeights() 146 | innerWrapper.off transEndEventName 147 | else 148 | innerWrapper.animate left: position, settings.duration, animationCallback 149 | 150 | setHeights: () -> 151 | actions.clearHeights() 152 | # scrollHeight is to account for Zepto/jQuery inconsistencies 153 | height = Math.max $(window).height(), $(document).height(), body.prop('scrollHeight') 154 | outerWrapper.css "height", height 155 | innerWrapper.css "height", height if height > innerWrapper.height() 156 | menu.css "height", height if height > menu.height() 157 | 158 | clearHeights: () -> 159 | outerWrapper.add(innerWrapper).add(menu).css "height", "" 160 | 161 | # Briefly blocks click events from firing (Android 4.2.x bug) 162 | pauseClicks: () -> 163 | body.on "click", (e) -> 164 | e.preventDefault() 165 | e.stopPropagation() 166 | setTimeout (() -> body.off "click"), settings.duration * 2 167 | 168 | on : actions.on 169 | off : actions.off 170 | toggle: actions.toggle 171 | show : actions.show 172 | hide : actions.hide 173 | -------------------------------------------------------------------------------- /vendor/fastclick.js: -------------------------------------------------------------------------------- 1 | /** 2 | * @preserve FastClick: polyfill to remove click delays on browsers with touch UIs. 3 | * 4 | * @version 0.6.7 5 | * @codingstandard ftlabs-jsv2 6 | * @copyright The Financial Times Limited [All Rights Reserved] 7 | * @license MIT License (see LICENSE.txt) 8 | */ 9 | 10 | /*jslint browser:true, node:true*/ 11 | /*global define, Event, Node*/ 12 | 13 | 14 | /** 15 | * Instantiate fast-clicking listeners on the specificed layer. 16 | * 17 | * @constructor 18 | * @param {Element} layer The layer to listen on 19 | */ 20 | function FastClick(layer) { 21 | 'use strict'; 22 | var oldOnClick, self = this; 23 | 24 | 25 | /** 26 | * Whether a click is currently being tracked. 27 | * 28 | * @type boolean 29 | */ 30 | this.trackingClick = false; 31 | 32 | 33 | /** 34 | * Timestamp for when when click tracking started. 35 | * 36 | * @type number 37 | */ 38 | this.trackingClickStart = 0; 39 | 40 | 41 | /** 42 | * The element being tracked for a click. 43 | * 44 | * @type EventTarget 45 | */ 46 | this.targetElement = null; 47 | 48 | 49 | /** 50 | * X-coordinate of touch start event. 51 | * 52 | * @type number 53 | */ 54 | this.touchStartX = 0; 55 | 56 | 57 | /** 58 | * Y-coordinate of touch start event. 59 | * 60 | * @type number 61 | */ 62 | this.touchStartY = 0; 63 | 64 | 65 | /** 66 | * ID of the last touch, retrieved from Touch.identifier. 67 | * 68 | * @type number 69 | */ 70 | this.lastTouchIdentifier = 0; 71 | 72 | 73 | /** 74 | * Touchmove boundary, beyond which a click will be cancelled. 75 | * 76 | * @type number 77 | */ 78 | this.touchBoundary = 10; 79 | 80 | 81 | /** 82 | * The FastClick layer. 83 | * 84 | * @type Element 85 | */ 86 | this.layer = layer; 87 | 88 | if (!layer || !layer.nodeType) { 89 | throw new TypeError('Layer must be a document node'); 90 | } 91 | 92 | /** @type function() */ 93 | this.onClick = function() { return FastClick.prototype.onClick.apply(self, arguments); }; 94 | 95 | /** @type function() */ 96 | this.onMouse = function() { return FastClick.prototype.onMouse.apply(self, arguments); }; 97 | 98 | /** @type function() */ 99 | this.onTouchStart = function() { return FastClick.prototype.onTouchStart.apply(self, arguments); }; 100 | 101 | /** @type function() */ 102 | this.onTouchEnd = function() { return FastClick.prototype.onTouchEnd.apply(self, arguments); }; 103 | 104 | /** @type function() */ 105 | this.onTouchCancel = function() { return FastClick.prototype.onTouchCancel.apply(self, arguments); }; 106 | 107 | if (FastClick.notNeeded(layer)) { 108 | return; 109 | } 110 | 111 | // Set up event handlers as required 112 | if (this.deviceIsAndroid) { 113 | layer.addEventListener('mouseover', this.onMouse, true); 114 | layer.addEventListener('mousedown', this.onMouse, true); 115 | layer.addEventListener('mouseup', this.onMouse, true); 116 | } 117 | 118 | layer.addEventListener('click', this.onClick, true); 119 | layer.addEventListener('touchstart', this.onTouchStart, false); 120 | layer.addEventListener('touchend', this.onTouchEnd, false); 121 | layer.addEventListener('touchcancel', this.onTouchCancel, false); 122 | 123 | // Hack is required for browsers that don't support Event#stopImmediatePropagation (e.g. Android 2) 124 | // which is how FastClick normally stops click events bubbling to callbacks registered on the FastClick 125 | // layer when they are cancelled. 126 | if (!Event.prototype.stopImmediatePropagation) { 127 | layer.removeEventListener = function(type, callback, capture) { 128 | var rmv = Node.prototype.removeEventListener; 129 | if (type === 'click') { 130 | rmv.call(layer, type, callback.hijacked || callback, capture); 131 | } else { 132 | rmv.call(layer, type, callback, capture); 133 | } 134 | }; 135 | 136 | layer.addEventListener = function(type, callback, capture) { 137 | var adv = Node.prototype.addEventListener; 138 | if (type === 'click') { 139 | adv.call(layer, type, callback.hijacked || (callback.hijacked = function(event) { 140 | if (!event.propagationStopped) { 141 | callback(event); 142 | } 143 | }), capture); 144 | } else { 145 | adv.call(layer, type, callback, capture); 146 | } 147 | }; 148 | } 149 | 150 | // If a handler is already declared in the element's onclick attribute, it will be fired before 151 | // FastClick's onClick handler. Fix this by pulling out the user-defined handler function and 152 | // adding it as listener. 153 | if (typeof layer.onclick === 'function') { 154 | 155 | // Android browser on at least 3.2 requires a new reference to the function in layer.onclick 156 | // - the old one won't work if passed to addEventListener directly. 157 | oldOnClick = layer.onclick; 158 | layer.addEventListener('click', function(event) { 159 | oldOnClick(event); 160 | }, false); 161 | layer.onclick = null; 162 | } 163 | } 164 | 165 | 166 | /** 167 | * Android requires exceptions. 168 | * 169 | * @type boolean 170 | */ 171 | FastClick.prototype.deviceIsAndroid = navigator.userAgent.indexOf('Android') > 0; 172 | 173 | 174 | /** 175 | * iOS requires exceptions. 176 | * 177 | * @type boolean 178 | */ 179 | FastClick.prototype.deviceIsIOS = /iP(ad|hone|od)/.test(navigator.userAgent); 180 | 181 | 182 | /** 183 | * iOS 4 requires an exception for select elements. 184 | * 185 | * @type boolean 186 | */ 187 | FastClick.prototype.deviceIsIOS4 = FastClick.prototype.deviceIsIOS && (/OS 4_\d(_\d)?/).test(navigator.userAgent); 188 | 189 | 190 | /** 191 | * iOS 6.0(+?) requires the target element to be manually derived 192 | * 193 | * @type boolean 194 | */ 195 | FastClick.prototype.deviceIsIOSWithBadTarget = FastClick.prototype.deviceIsIOS && (/OS ([6-9]|\d{2})_\d/).test(navigator.userAgent); 196 | 197 | 198 | /** 199 | * Determine whether a given element requires a native click. 200 | * 201 | * @param {EventTarget|Element} target Target DOM element 202 | * @returns {boolean} Returns true if the element needs a native click 203 | */ 204 | FastClick.prototype.needsClick = function(target) { 205 | 'use strict'; 206 | switch (target.nodeName.toLowerCase()) { 207 | 208 | // Don't send a synthetic click to disabled inputs (issue #62) 209 | case 'button': 210 | case 'select': 211 | case 'textarea': 212 | if (target.disabled) { 213 | return true; 214 | } 215 | 216 | break; 217 | case 'input': 218 | 219 | // File inputs need real clicks on iOS 6 due to a browser bug (issue #68) 220 | if ((this.deviceIsIOS && target.type === 'file') || target.disabled) { 221 | return true; 222 | } 223 | 224 | break; 225 | case 'label': 226 | case 'video': 227 | return true; 228 | } 229 | 230 | return (/\bneedsclick\b/).test(target.className); 231 | }; 232 | 233 | 234 | /** 235 | * Determine whether a given element requires a call to focus to simulate click into element. 236 | * 237 | * @param {EventTarget|Element} target Target DOM element 238 | * @returns {boolean} Returns true if the element requires a call to focus to simulate native click. 239 | */ 240 | FastClick.prototype.needsFocus = function(target) { 241 | 'use strict'; 242 | switch (target.nodeName.toLowerCase()) { 243 | case 'textarea': 244 | case 'select': 245 | return true; 246 | case 'input': 247 | switch (target.type) { 248 | case 'button': 249 | case 'checkbox': 250 | case 'file': 251 | case 'image': 252 | case 'radio': 253 | case 'submit': 254 | return false; 255 | } 256 | 257 | // No point in attempting to focus disabled inputs 258 | return !target.disabled && !target.readOnly; 259 | default: 260 | return (/\bneedsfocus\b/).test(target.className); 261 | } 262 | }; 263 | 264 | 265 | /** 266 | * Send a click event to the specified element. 267 | * 268 | * @param {EventTarget|Element} targetElement 269 | * @param {Event} event 270 | */ 271 | FastClick.prototype.sendClick = function(targetElement, event) { 272 | 'use strict'; 273 | var clickEvent, touch; 274 | 275 | // On some Android devices activeElement needs to be blurred otherwise the synthetic click will have no effect (#24) 276 | if (document.activeElement && document.activeElement !== targetElement) { 277 | document.activeElement.blur(); 278 | } 279 | 280 | touch = event.changedTouches[0]; 281 | 282 | // Synthesise a click event, with an extra attribute so it can be tracked 283 | clickEvent = document.createEvent('MouseEvents'); 284 | clickEvent.initMouseEvent('click', true, true, window, 1, touch.screenX, touch.screenY, touch.clientX, touch.clientY, false, false, false, false, 0, null); 285 | clickEvent.forwardedTouchEvent = true; 286 | targetElement.dispatchEvent(clickEvent); 287 | }; 288 | 289 | 290 | /** 291 | * @param {EventTarget|Element} targetElement 292 | */ 293 | FastClick.prototype.focus = function(targetElement) { 294 | 'use strict'; 295 | var length; 296 | 297 | if (this.deviceIsIOS && targetElement.setSelectionRange) { 298 | length = targetElement.value.length; 299 | targetElement.setSelectionRange(length, length); 300 | } else { 301 | targetElement.focus(); 302 | } 303 | }; 304 | 305 | 306 | /** 307 | * Check whether the given target element is a child of a scrollable layer and if so, set a flag on it. 308 | * 309 | * @param {EventTarget|Element} targetElement 310 | */ 311 | FastClick.prototype.updateScrollParent = function(targetElement) { 312 | 'use strict'; 313 | var scrollParent, parentElement; 314 | 315 | scrollParent = targetElement.fastClickScrollParent; 316 | 317 | // Attempt to discover whether the target element is contained within a scrollable layer. Re-check if the 318 | // target element was moved to another parent. 319 | if (!scrollParent || !scrollParent.contains(targetElement)) { 320 | parentElement = targetElement; 321 | do { 322 | if (parentElement.scrollHeight > parentElement.offsetHeight) { 323 | scrollParent = parentElement; 324 | targetElement.fastClickScrollParent = parentElement; 325 | break; 326 | } 327 | 328 | parentElement = parentElement.parentElement; 329 | } while (parentElement); 330 | } 331 | 332 | // Always update the scroll top tracker if possible. 333 | if (scrollParent) { 334 | scrollParent.fastClickLastScrollTop = scrollParent.scrollTop; 335 | } 336 | }; 337 | 338 | 339 | /** 340 | * @param {EventTarget} targetElement 341 | * @returns {Element|EventTarget} 342 | */ 343 | FastClick.prototype.getTargetElementFromEventTarget = function(eventTarget) { 344 | 'use strict'; 345 | 346 | // On some older browsers (notably Safari on iOS 4.1 - see issue #56) the event target may be a text node. 347 | if (eventTarget.nodeType === Node.TEXT_NODE) { 348 | return eventTarget.parentNode; 349 | } 350 | 351 | return eventTarget; 352 | }; 353 | 354 | 355 | /** 356 | * On touch start, record the position and scroll offset. 357 | * 358 | * @param {Event} event 359 | * @returns {boolean} 360 | */ 361 | FastClick.prototype.onTouchStart = function(event) { 362 | 'use strict'; 363 | var targetElement, touch, selection; 364 | 365 | // Ignore multiple touches, otherwise pinch-to-zoom is prevented if both fingers are on the FastClick element (issue #111). 366 | if (event.targetTouches.length > 1) { 367 | return true; 368 | } 369 | 370 | targetElement = this.getTargetElementFromEventTarget(event.target); 371 | touch = event.targetTouches[0]; 372 | 373 | if (this.deviceIsIOS) { 374 | 375 | // Only trusted events will deselect text on iOS (issue #49) 376 | selection = window.getSelection(); 377 | if (selection.rangeCount && !selection.isCollapsed) { 378 | return true; 379 | } 380 | 381 | if (!this.deviceIsIOS4) { 382 | 383 | // Weird things happen on iOS when an alert or confirm dialog is opened from a click event callback (issue #23): 384 | // when the user next taps anywhere else on the page, new touchstart and touchend events are dispatched 385 | // with the same identifier as the touch event that previously triggered the click that triggered the alert. 386 | // Sadly, there is an issue on iOS 4 that causes some normal touch events to have the same identifier as an 387 | // immediately preceeding touch event (issue #52), so this fix is unavailable on that platform. 388 | if (touch.identifier === this.lastTouchIdentifier) { 389 | event.preventDefault(); 390 | return false; 391 | } 392 | 393 | this.lastTouchIdentifier = touch.identifier; 394 | 395 | // If the target element is a child of a scrollable layer (using -webkit-overflow-scrolling: touch) and: 396 | // 1) the user does a fling scroll on the scrollable layer 397 | // 2) the user stops the fling scroll with another tap 398 | // then the event.target of the last 'touchend' event will be the element that was under the user's finger 399 | // when the fling scroll was started, causing FastClick to send a click event to that layer - unless a check 400 | // is made to ensure that a parent layer was not scrolled before sending a synthetic click (issue #42). 401 | this.updateScrollParent(targetElement); 402 | } 403 | } 404 | 405 | this.trackingClick = true; 406 | this.trackingClickStart = event.timeStamp; 407 | this.targetElement = targetElement; 408 | 409 | this.touchStartX = touch.pageX; 410 | this.touchStartY = touch.pageY; 411 | 412 | // Prevent phantom clicks on fast double-tap (issue #36) 413 | if ((event.timeStamp - this.lastClickTime) < 200) { 414 | event.preventDefault(); 415 | } 416 | 417 | return true; 418 | }; 419 | 420 | 421 | /** 422 | * Based on a touchmove event object, check whether the touch has moved past a boundary since it started. 423 | * 424 | * @param {Event} event 425 | * @returns {boolean} 426 | */ 427 | FastClick.prototype.touchHasMoved = function(event) { 428 | 'use strict'; 429 | var touch = event.changedTouches[0], boundary = this.touchBoundary; 430 | 431 | if (Math.abs(touch.pageX - this.touchStartX) > boundary || Math.abs(touch.pageY - this.touchStartY) > boundary) { 432 | return true; 433 | } 434 | 435 | return false; 436 | }; 437 | 438 | 439 | /** 440 | * Attempt to find the labelled control for the given label element. 441 | * 442 | * @param {EventTarget|HTMLLabelElement} labelElement 443 | * @returns {Element|null} 444 | */ 445 | FastClick.prototype.findControl = function(labelElement) { 446 | 'use strict'; 447 | 448 | // Fast path for newer browsers supporting the HTML5 control attribute 449 | if (labelElement.control !== undefined) { 450 | return labelElement.control; 451 | } 452 | 453 | // All browsers under test that support touch events also support the HTML5 htmlFor attribute 454 | if (labelElement.htmlFor) { 455 | return document.getElementById(labelElement.htmlFor); 456 | } 457 | 458 | // If no for attribute exists, attempt to retrieve the first labellable descendant element 459 | // the list of which is defined here: http://www.w3.org/TR/html5/forms.html#category-label 460 | return labelElement.querySelector('button, input:not([type=hidden]), keygen, meter, output, progress, select, textarea'); 461 | }; 462 | 463 | 464 | /** 465 | * On touch end, determine whether to send a click event at once. 466 | * 467 | * @param {Event} event 468 | * @returns {boolean} 469 | */ 470 | FastClick.prototype.onTouchEnd = function(event) { 471 | 'use strict'; 472 | var forElement, trackingClickStart, targetTagName, scrollParent, touch, targetElement = this.targetElement; 473 | 474 | // If the touch has moved, cancel the click tracking 475 | if (this.touchHasMoved(event)) { 476 | this.trackingClick = false; 477 | this.targetElement = null; 478 | } 479 | 480 | if (!this.trackingClick) { 481 | return true; 482 | } 483 | 484 | // Prevent phantom clicks on fast double-tap (issue #36) 485 | if ((event.timeStamp - this.lastClickTime) < 200) { 486 | this.cancelNextClick = true; 487 | return true; 488 | } 489 | 490 | this.lastClickTime = event.timeStamp; 491 | 492 | trackingClickStart = this.trackingClickStart; 493 | this.trackingClick = false; 494 | this.trackingClickStart = 0; 495 | 496 | // On some iOS devices, the targetElement supplied with the event is invalid if the layer 497 | // is performing a transition or scroll, and has to be re-detected manually. Note that 498 | // for this to function correctly, it must be called *after* the event target is checked! 499 | // See issue #57; also filed as rdar://13048589 . 500 | if (this.deviceIsIOSWithBadTarget) { 501 | touch = event.changedTouches[0]; 502 | targetElement = document.elementFromPoint(touch.pageX - window.pageXOffset, touch.pageY - window.pageYOffset); 503 | } 504 | 505 | targetTagName = targetElement.tagName.toLowerCase(); 506 | if (targetTagName === 'label') { 507 | forElement = this.findControl(targetElement); 508 | if (forElement) { 509 | this.focus(targetElement); 510 | if (this.deviceIsAndroid) { 511 | return false; 512 | } 513 | 514 | targetElement = forElement; 515 | } 516 | } else if (this.needsFocus(targetElement)) { 517 | 518 | // Case 1: If the touch started a while ago (best guess is 100ms based on tests for issue #36) then focus will be triggered anyway. Return early and unset the target element reference so that the subsequent click will be allowed through. 519 | // Case 2: Without this exception for input elements tapped when the document is contained in an iframe, then any inputted text won't be visible even though the value attribute is updated as the user types (issue #37). 520 | if ((event.timeStamp - trackingClickStart) > 100 || (this.deviceIsIOS && window.top !== window && targetTagName === 'input')) { 521 | this.targetElement = null; 522 | return false; 523 | } 524 | 525 | this.focus(targetElement); 526 | 527 | // Select elements need the event to go through on iOS 4, otherwise the selector menu won't open. 528 | if (!this.deviceIsIOS4 || targetTagName !== 'select') { 529 | this.targetElement = null; 530 | event.preventDefault(); 531 | } 532 | 533 | return false; 534 | } 535 | 536 | if (this.deviceIsIOS && !this.deviceIsIOS4) { 537 | 538 | // Don't send a synthetic click event if the target element is contained within a parent layer that was scrolled 539 | // and this tap is being used to stop the scrolling (usually initiated by a fling - issue #42). 540 | scrollParent = targetElement.fastClickScrollParent; 541 | if (scrollParent && scrollParent.fastClickLastScrollTop !== scrollParent.scrollTop) { 542 | return true; 543 | } 544 | } 545 | 546 | // Prevent the actual click from going though - unless the target node is marked as requiring 547 | // real clicks or if it is in the whitelist in which case only non-programmatic clicks are permitted. 548 | if (!this.needsClick(targetElement)) { 549 | event.preventDefault(); 550 | this.sendClick(targetElement, event); 551 | } 552 | 553 | return false; 554 | }; 555 | 556 | 557 | /** 558 | * On touch cancel, stop tracking the click. 559 | * 560 | * @returns {void} 561 | */ 562 | FastClick.prototype.onTouchCancel = function() { 563 | 'use strict'; 564 | this.trackingClick = false; 565 | this.targetElement = null; 566 | }; 567 | 568 | 569 | /** 570 | * Determine mouse events which should be permitted. 571 | * 572 | * @param {Event} event 573 | * @returns {boolean} 574 | */ 575 | FastClick.prototype.onMouse = function(event) { 576 | 'use strict'; 577 | 578 | // If a target element was never set (because a touch event was never fired) allow the event 579 | if (!this.targetElement) { 580 | return true; 581 | } 582 | 583 | if (event.forwardedTouchEvent) { 584 | return true; 585 | } 586 | 587 | // Programmatically generated events targeting a specific element should be permitted 588 | if (!event.cancelable) { 589 | return true; 590 | } 591 | 592 | // Derive and check the target element to see whether the mouse event needs to be permitted; 593 | // unless explicitly enabled, prevent non-touch click events from triggering actions, 594 | // to prevent ghost/doubleclicks. 595 | if (!this.needsClick(this.targetElement) || this.cancelNextClick) { 596 | 597 | // Prevent any user-added listeners declared on FastClick element from being fired. 598 | if (event.stopImmediatePropagation) { 599 | event.stopImmediatePropagation(); 600 | } else { 601 | 602 | // Part of the hack for browsers that don't support Event#stopImmediatePropagation (e.g. Android 2) 603 | event.propagationStopped = true; 604 | } 605 | 606 | // Cancel the event 607 | event.stopPropagation(); 608 | event.preventDefault(); 609 | 610 | return false; 611 | } 612 | 613 | // If the mouse event is permitted, return true for the action to go through. 614 | return true; 615 | }; 616 | 617 | 618 | /** 619 | * On actual clicks, determine whether this is a touch-generated click, a click action occurring 620 | * naturally after a delay after a touch (which needs to be cancelled to avoid duplication), or 621 | * an actual click which should be permitted. 622 | * 623 | * @param {Event} event 624 | * @returns {boolean} 625 | */ 626 | FastClick.prototype.onClick = function(event) { 627 | 'use strict'; 628 | var permitted; 629 | 630 | // It's possible for another FastClick-like library delivered with third-party code to fire a click event before FastClick does (issue #44). In that case, set the click-tracking flag back to false and return early. This will cause onTouchEnd to return early. 631 | if (this.trackingClick) { 632 | this.targetElement = null; 633 | this.trackingClick = false; 634 | return true; 635 | } 636 | 637 | // Very odd behaviour on iOS (issue #18): if a submit element is present inside a form and the user hits enter in the iOS simulator or clicks the Go button on the pop-up OS keyboard the a kind of 'fake' click event will be triggered with the submit-type input element as the target. 638 | if (event.target.type === 'submit' && event.detail === 0) { 639 | return true; 640 | } 641 | 642 | permitted = this.onMouse(event); 643 | 644 | // Only unset targetElement if the click is not permitted. This will ensure that the check for !targetElement in onMouse fails and the browser's click doesn't go through. 645 | if (!permitted) { 646 | this.targetElement = null; 647 | } 648 | 649 | // If clicks are permitted, return true for the action to go through. 650 | return permitted; 651 | }; 652 | 653 | 654 | /** 655 | * Remove all FastClick's event listeners. 656 | * 657 | * @returns {void} 658 | */ 659 | FastClick.prototype.destroy = function() { 660 | 'use strict'; 661 | var layer = this.layer; 662 | 663 | if (this.deviceIsAndroid) { 664 | layer.removeEventListener('mouseover', this.onMouse, true); 665 | layer.removeEventListener('mousedown', this.onMouse, true); 666 | layer.removeEventListener('mouseup', this.onMouse, true); 667 | } 668 | 669 | layer.removeEventListener('click', this.onClick, true); 670 | layer.removeEventListener('touchstart', this.onTouchStart, false); 671 | layer.removeEventListener('touchend', this.onTouchEnd, false); 672 | layer.removeEventListener('touchcancel', this.onTouchCancel, false); 673 | }; 674 | 675 | 676 | /** 677 | * Check whether FastClick is needed. 678 | * 679 | * @param {Element} layer The layer to listen on 680 | */ 681 | FastClick.notNeeded = function(layer) { 682 | 'use strict'; 683 | var metaViewport; 684 | 685 | // Devices that don't support touch don't need FastClick 686 | if (typeof window.ontouchstart === 'undefined') { 687 | return true; 688 | } 689 | 690 | if ((/Chrome\/[0-9]+/).test(navigator.userAgent)) { 691 | 692 | // Chrome on Android with user-scalable="no" doesn't need FastClick (issue #89) 693 | if (FastClick.prototype.deviceIsAndroid) { 694 | metaViewport = document.querySelector('meta[name=viewport]'); 695 | if (metaViewport && metaViewport.content.indexOf('user-scalable=no') !== -1) { 696 | return true; 697 | } 698 | 699 | // Chrome desktop doesn't need FastClick (issue #15) 700 | } else { 701 | return true; 702 | } 703 | } 704 | 705 | // IE10 with -ms-touch-action: none, which disables double-tap-to-zoom (issue #97) 706 | if (layer.style.msTouchAction === 'none') { 707 | return true; 708 | } 709 | 710 | return false; 711 | }; 712 | 713 | 714 | /** 715 | * Factory method for creating a FastClick object 716 | * 717 | * @param {Element} layer The layer to listen on 718 | */ 719 | FastClick.attach = function(layer) { 720 | 'use strict'; 721 | return new FastClick(layer); 722 | }; 723 | 724 | 725 | if (typeof define !== 'undefined' && define.amd) { 726 | 727 | // AMD. 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