Created
June 7, 2016 19:27
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example of have a precompiled vendor asset
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diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb | |
index 722b3a8..e32d6db 100644 | |
--- a/app/views/layouts/application.html.erb | |
+++ b/app/views/layouts/application.html.erb | |
@@ -4,6 +4,7 @@ | |
<title>AssetsDemo</title> | |
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %> | |
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %> | |
+ <%= javascript_include_tag 'jquery.mousewheel', 'data-turbolinks-track' => true %> | |
<%= csrf_meta_tags %> | |
</head> | |
<body> | |
diff --git a/config/initializers/assets.rb b/config/initializers/assets.rb | |
index 01ef3e6..8a0924b 100644 | |
--- a/config/initializers/assets.rb | |
+++ b/config/initializers/assets.rb | |
@@ -8,4 +8,4 @@ Rails.application.config.assets.version = '1.0' | |
# Precompile additional assets. | |
# application.js, application.css, and all non-JS/CSS in app/assets folder are already added. | |
-# Rails.application.config.assets.precompile += %w( search.js ) | |
+Rails.application.config.assets.precompile += %w( jquery.mousewheel.js ) | |
diff --git a/vendor/assets/javascripts/jquery.mousewheel.js b/vendor/assets/javascripts/jquery.mousewheel.js | |
new file mode 100644 | |
index 0000000..3eadb7e | |
--- /dev/null | |
+++ b/vendor/assets/javascripts/jquery.mousewheel.js | |
@@ -0,0 +1,221 @@ | |
+/*! | |
+ * jQuery Mousewheel 3.1.13 | |
+ * | |
+ * Copyright jQuery Foundation and other contributors | |
+ * Released under the MIT license | |
+ * http://jquery.org/license | |
+ */ | |
+ | |
+(function (factory) { | |
+ if ( typeof define === 'function' && define.amd ) { | |
+ // AMD. Register as an anonymous module. | |
+ define(['jquery'], factory); | |
+ } else if (typeof exports === 'object') { | |
+ // Node/CommonJS style for Browserify | |
+ module.exports = factory; | |
+ } else { | |
+ // Browser globals | |
+ factory(jQuery); | |
+ } | |
+}(function ($) { | |
+ | |
+ var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'], | |
+ toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ? | |
+ ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'], | |
+ slice = Array.prototype.slice, | |
+ nullLowestDeltaTimeout, lowestDelta; | |
+ | |
+ if ( $.event.fixHooks ) { | |
+ for ( var i = toFix.length; i; ) { | |
+ $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks; | |
+ } | |
+ } | |
+ | |
+ var special = $.event.special.mousewheel = { | |
+ version: '3.1.12', | |
+ | |
+ setup: function() { | |
+ if ( this.addEventListener ) { | |
+ for ( var i = toBind.length; i; ) { | |
+ this.addEventListener( toBind[--i], handler, false ); | |
+ } | |
+ } else { | |
+ this.onmousewheel = handler; | |
+ } | |
+ // Store the line height and page height for this particular element | |
+ $.data(this, 'mousewheel-line-height', special.getLineHeight(this)); | |
+ $.data(this, 'mousewheel-page-height', special.getPageHeight(this)); | |
+ }, | |
+ | |
+ teardown: function() { | |
+ if ( this.removeEventListener ) { | |
+ for ( var i = toBind.length; i; ) { | |
+ this.removeEventListener( toBind[--i], handler, false ); | |
+ } | |
+ } else { | |
+ this.onmousewheel = null; | |
+ } | |
+ // Clean up the data we added to the element | |
+ $.removeData(this, 'mousewheel-line-height'); | |
+ $.removeData(this, 'mousewheel-page-height'); | |
+ }, | |
+ | |
+ getLineHeight: function(elem) { | |
+ var $elem = $(elem), | |
+ $parent = $elem['offsetParent' in $.fn ? 'offsetParent' : 'parent'](); | |
+ if (!$parent.length) { | |
+ $parent = $('body'); | |
+ } | |
+ return parseInt($parent.css('fontSize'), 10) || parseInt($elem.css('fontSize'), 10) || 16; | |
+ }, | |
+ | |
+ getPageHeight: function(elem) { | |
+ return $(elem).height(); | |
+ }, | |
+ | |
+ settings: { | |
+ adjustOldDeltas: true, // see shouldAdjustOldDeltas() below | |
+ normalizeOffset: true // calls getBoundingClientRect for each event | |
+ } | |
+ }; | |
+ | |
+ $.fn.extend({ | |
+ mousewheel: function(fn) { | |
+ return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel'); | |
+ }, | |
+ | |
+ unmousewheel: function(fn) { | |
+ return this.unbind('mousewheel', fn); | |
+ } | |
+ }); | |
+ | |
+ | |
+ function handler(event) { | |
+ var orgEvent = event || window.event, | |
+ args = slice.call(arguments, 1), | |
+ delta = 0, | |
+ deltaX = 0, | |
+ deltaY = 0, | |
+ absDelta = 0, | |
+ offsetX = 0, | |
+ offsetY = 0; | |
+ event = $.event.fix(orgEvent); | |
+ event.type = 'mousewheel'; | |
+ | |
+ // Old school scrollwheel delta | |
+ if ( 'detail' in orgEvent ) { deltaY = orgEvent.detail * -1; } | |
+ if ( 'wheelDelta' in orgEvent ) { deltaY = orgEvent.wheelDelta; } | |
+ if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY; } | |
+ if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; } | |
+ | |
+ // Firefox < 17 horizontal scrolling related to DOMMouseScroll event | |
+ if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) { | |
+ deltaX = deltaY * -1; | |
+ deltaY = 0; | |
+ } | |
+ | |
+ // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy | |
+ delta = deltaY === 0 ? deltaX : deltaY; | |
+ | |
+ // New school wheel delta (wheel event) | |
+ if ( 'deltaY' in orgEvent ) { | |
+ deltaY = orgEvent.deltaY * -1; | |
+ delta = deltaY; | |
+ } | |
+ if ( 'deltaX' in orgEvent ) { | |
+ deltaX = orgEvent.deltaX; | |
+ if ( deltaY === 0 ) { delta = deltaX * -1; } | |
+ } | |
+ | |
+ // No change actually happened, no reason to go any further | |
+ if ( deltaY === 0 && deltaX === 0 ) { return; } | |
+ | |
+ // Need to convert lines and pages to pixels if we aren't already in pixels | |
+ // There are three delta modes: | |
+ // * deltaMode 0 is by pixels, nothing to do | |
+ // * deltaMode 1 is by lines | |
+ // * deltaMode 2 is by pages | |
+ if ( orgEvent.deltaMode === 1 ) { | |
+ var lineHeight = $.data(this, 'mousewheel-line-height'); | |
+ delta *= lineHeight; | |
+ deltaY *= lineHeight; | |
+ deltaX *= lineHeight; | |
+ } else if ( orgEvent.deltaMode === 2 ) { | |
+ var pageHeight = $.data(this, 'mousewheel-page-height'); | |
+ delta *= pageHeight; | |
+ deltaY *= pageHeight; | |
+ deltaX *= pageHeight; | |
+ } | |
+ | |
+ // Store lowest absolute delta to normalize the delta values | |
+ absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) ); | |
+ | |
+ if ( !lowestDelta || absDelta < lowestDelta ) { | |
+ lowestDelta = absDelta; | |
+ | |
+ // Adjust older deltas if necessary | |
+ if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) { | |
+ lowestDelta /= 40; | |
+ } | |
+ } | |
+ | |
+ // Adjust older deltas if necessary | |
+ if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) { | |
+ // Divide all the things by 40! | |
+ delta /= 40; | |
+ deltaX /= 40; | |
+ deltaY /= 40; | |
+ } | |
+ | |
+ // Get a whole, normalized value for the deltas | |
+ delta = Math[ delta >= 1 ? 'floor' : 'ceil' ](delta / lowestDelta); | |
+ deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta); | |
+ deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta); | |
+ | |
+ // Normalise offsetX and offsetY properties | |
+ if ( special.settings.normalizeOffset && this.getBoundingClientRect ) { | |
+ var boundingRect = this.getBoundingClientRect(); | |
+ offsetX = event.clientX - boundingRect.left; | |
+ offsetY = event.clientY - boundingRect.top; | |
+ } | |
+ | |
+ // Add information to the event object | |
+ event.deltaX = deltaX; | |
+ event.deltaY = deltaY; | |
+ event.deltaFactor = lowestDelta; | |
+ event.offsetX = offsetX; | |
+ event.offsetY = offsetY; | |
+ // Go ahead and set deltaMode to 0 since we converted to pixels | |
+ // Although this is a little odd since we overwrite the deltaX/Y | |
+ // properties with normalized deltas. | |
+ event.deltaMode = 0; | |
+ | |
+ // Add event and delta to the front of the arguments | |
+ args.unshift(event, delta, deltaX, deltaY); | |
+ | |
+ // Clearout lowestDelta after sometime to better | |
+ // handle multiple device types that give different | |
+ // a different lowestDelta | |
+ // Ex: trackpad = 3 and mouse wheel = 120 | |
+ if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); } | |
+ nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200); | |
+ | |
+ return ($.event.dispatch || $.event.handle).apply(this, args); | |
+ } | |
+ | |
+ function nullLowestDelta() { | |
+ lowestDelta = null; | |
+ } | |
+ | |
+ function shouldAdjustOldDeltas(orgEvent, absDelta) { | |
+ // If this is an older event and the delta is divisable by 120, | |
+ // then we are assuming that the browser is treating this as an | |
+ // older mouse wheel event and that we should divide the deltas | |
+ // by 40 to try and get a more usable deltaFactor. | |
+ // Side note, this actually impacts the reported scroll distance | |
+ // in older browsers and can cause scrolling to be slower than native. | |
+ // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false. | |
+ return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0; | |
+ } | |
+ | |
+})); |
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