Conditions | 1 |
Paths | 128 |
Total Lines | 569 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | /*! |
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31 | })(typeof global === 'object' ? global : this, function() { |
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32 | 'use strict'; |
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33 | |||
34 | var Waves = Waves || {}; |
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35 | var $$ = document.querySelectorAll.bind(document); |
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36 | var toString = Object.prototype.toString; |
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37 | var isTouchAvailable = 'ontouchstart' in window; |
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38 | |||
39 | |||
40 | // Find exact position of element |
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41 | function isWindow(obj) { |
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42 | return obj !== null && obj === obj.window; |
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43 | } |
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44 | |||
45 | function getWindow(elem) { |
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46 | return isWindow(elem) ? elem : elem.nodeType === 9 && elem.defaultView; |
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47 | } |
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48 | |||
49 | function isObject(value) { |
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50 | var type = typeof value; |
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51 | return type === 'function' || type === 'object' && !!value; |
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52 | } |
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53 | |||
54 | function isDOMNode(obj) { |
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55 | return isObject(obj) && obj.nodeType > 0; |
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56 | } |
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57 | |||
58 | function getWavesElements(nodes) { |
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59 | var stringRepr = toString.call(nodes); |
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60 | |||
61 | if (stringRepr === '[object String]') { |
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62 | return $$(nodes); |
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63 | } else if (isObject(nodes) && /^\[object (Array|HTMLCollection|NodeList|Object)\]$/.test(stringRepr) && nodes.hasOwnProperty('length')) { |
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64 | return nodes; |
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65 | } else if (isDOMNode(nodes)) { |
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66 | return [nodes]; |
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67 | } |
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68 | |||
69 | return []; |
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70 | } |
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71 | |||
72 | function offset(elem) { |
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73 | var docElem, win, |
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74 | box = { top: 0, left: 0 }, |
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75 | doc = elem && elem.ownerDocument; |
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76 | |||
77 | docElem = doc.documentElement; |
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78 | |||
79 | if (typeof elem.getBoundingClientRect !== typeof undefined) { |
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80 | box = elem.getBoundingClientRect(); |
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81 | } |
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82 | win = getWindow(doc); |
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83 | return { |
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84 | top: box.top + win.pageYOffset - docElem.clientTop, |
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85 | left: box.left + win.pageXOffset - docElem.clientLeft |
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86 | }; |
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87 | } |
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88 | |||
89 | function convertStyle(styleObj) { |
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90 | var style = ''; |
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91 | |||
92 | for (var prop in styleObj) { |
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93 | if (styleObj.hasOwnProperty(prop)) { |
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94 | style += (prop + ':' + styleObj[prop] + ';'); |
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95 | } |
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96 | } |
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97 | |||
98 | return style; |
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99 | } |
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100 | |||
101 | var Effect = { |
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102 | |||
103 | // Effect duration |
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104 | duration: 750, |
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105 | |||
106 | // Effect delay (check for scroll before showing effect) |
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107 | delay: 200, |
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108 | |||
109 | show: function(e, element, velocity) { |
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110 | |||
111 | // Disable right click |
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112 | if (e.button === 2) { |
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113 | return false; |
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114 | } |
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115 | |||
116 | element = element || this; |
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117 | |||
118 | // Create ripple |
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119 | var ripple = document.createElement('div'); |
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120 | ripple.className = 'waves-ripple waves-rippling'; |
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121 | element.appendChild(ripple); |
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122 | |||
123 | // Get click coordinate and element width |
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124 | var pos = offset(element); |
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125 | var relativeY = 0; |
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126 | var relativeX = 0; |
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127 | // Support for touch devices |
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128 | if('touches' in e && e.touches.length) { |
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129 | relativeY = (e.touches[0].pageY - pos.top); |
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130 | relativeX = (e.touches[0].pageX - pos.left); |
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131 | } |
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132 | //Normal case |
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133 | else { |
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134 | relativeY = (e.pageY - pos.top); |
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135 | relativeX = (e.pageX - pos.left); |
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136 | } |
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137 | // Support for synthetic events |
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138 | relativeX = relativeX >= 0 ? relativeX : 0; |
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139 | relativeY = relativeY >= 0 ? relativeY : 0; |
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140 | |||
141 | var scale = 'scale(' + ((element.clientWidth / 100) * 3) + ')'; |
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142 | var translate = 'translate(0,0)'; |
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143 | |||
144 | if (velocity) { |
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145 | translate = 'translate(' + (velocity.x) + 'px, ' + (velocity.y) + 'px)'; |
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146 | } |
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147 | |||
148 | // Attach data to element |
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149 | ripple.setAttribute('data-hold', Date.now()); |
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150 | ripple.setAttribute('data-x', relativeX); |
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151 | ripple.setAttribute('data-y', relativeY); |
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152 | ripple.setAttribute('data-scale', scale); |
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153 | ripple.setAttribute('data-translate', translate); |
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154 | |||
155 | // Set ripple position |
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156 | var rippleStyle = { |
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157 | top: relativeY + 'px', |
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158 | left: relativeX + 'px' |
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159 | }; |
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160 | |||
161 | ripple.classList.add('waves-notransition'); |
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162 | ripple.setAttribute('style', convertStyle(rippleStyle)); |
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163 | ripple.classList.remove('waves-notransition'); |
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164 | |||
165 | // Scale the ripple |
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166 | rippleStyle['-webkit-transform'] = scale + ' ' + translate; |
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167 | rippleStyle['-moz-transform'] = scale + ' ' + translate; |
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168 | rippleStyle['-ms-transform'] = scale + ' ' + translate; |
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169 | rippleStyle['-o-transform'] = scale + ' ' + translate; |
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170 | rippleStyle.transform = scale + ' ' + translate; |
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171 | rippleStyle.opacity = '1'; |
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172 | |||
173 | var duration = e.type === 'mousemove' ? 2500 : Effect.duration; |
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174 | rippleStyle['-webkit-transition-duration'] = duration + 'ms'; |
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175 | rippleStyle['-moz-transition-duration'] = duration + 'ms'; |
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176 | rippleStyle['-o-transition-duration'] = duration + 'ms'; |
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177 | rippleStyle['transition-duration'] = duration + 'ms'; |
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178 | |||
179 | ripple.setAttribute('style', convertStyle(rippleStyle)); |
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180 | }, |
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181 | |||
182 | hide: function(e, element) { |
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183 | element = element || this; |
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184 | |||
185 | var ripples = element.getElementsByClassName('waves-rippling'); |
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186 | |||
187 | for (var i = 0, len = ripples.length; i < len; i++) { |
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188 | removeRipple(e, element, ripples[i]); |
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189 | } |
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190 | |||
191 | if (isTouchAvailable) { |
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192 | element.removeEventListener('touchend', Effect.hide); |
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193 | element.removeEventListener('touchcancel', Effect.hide); |
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194 | } |
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195 | |||
196 | element.removeEventListener('mouseup', Effect.hide); |
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197 | element.removeEventListener('mouseleave', Effect.hide); |
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198 | } |
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199 | }; |
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200 | |||
201 | /** |
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202 | * Collection of wrapper for HTML element that only have single tag |
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203 | * like <input> and <img> |
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204 | */ |
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205 | var TagWrapper = { |
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206 | |||
207 | // Wrap <input> tag so it can perform the effect |
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208 | input: function(element) { |
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209 | |||
210 | var parent = element.parentNode; |
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211 | |||
212 | // If input already have parent just pass through |
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213 | if (parent.tagName.toLowerCase() === 'i' && parent.classList.contains('waves-effect')) { |
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214 | return; |
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215 | } |
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216 | |||
217 | // Put element class and style to the specified parent |
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218 | var wrapper = document.createElement('i'); |
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219 | wrapper.className = element.className + ' waves-input-wrapper'; |
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220 | element.className = 'waves-button-input'; |
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221 | |||
222 | // Put element as child |
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223 | parent.replaceChild(wrapper, element); |
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224 | wrapper.appendChild(element); |
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225 | |||
226 | // Apply element color and background color to wrapper |
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227 | var elementStyle = window.getComputedStyle(element, null); |
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228 | var color = elementStyle.color; |
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229 | var backgroundColor = elementStyle.backgroundColor; |
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230 | |||
231 | wrapper.setAttribute('style', 'color:' + color + ';background:' + backgroundColor); |
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232 | element.setAttribute('style', 'background-color:rgba(0,0,0,0);'); |
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233 | |||
234 | }, |
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235 | |||
236 | // Wrap <img> tag so it can perform the effect |
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237 | img: function(element) { |
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238 | |||
239 | var parent = element.parentNode; |
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240 | |||
241 | // If input already have parent just pass through |
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242 | if (parent.tagName.toLowerCase() === 'i' && parent.classList.contains('waves-effect')) { |
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243 | return; |
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244 | } |
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245 | |||
246 | // Put element as child |
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247 | var wrapper = document.createElement('i'); |
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248 | parent.replaceChild(wrapper, element); |
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249 | wrapper.appendChild(element); |
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250 | |||
251 | } |
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252 | }; |
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253 | |||
254 | /** |
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255 | * Hide the effect and remove the ripple. Must be |
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256 | * a separate function to pass the JSLint... |
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257 | */ |
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258 | function removeRipple(e, el, ripple) { |
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259 | |||
260 | // Check if the ripple still exist |
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261 | if (!ripple) { |
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262 | return; |
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263 | } |
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264 | |||
265 | ripple.classList.remove('waves-rippling'); |
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266 | |||
267 | var relativeX = ripple.getAttribute('data-x'); |
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268 | var relativeY = ripple.getAttribute('data-y'); |
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269 | var scale = ripple.getAttribute('data-scale'); |
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270 | var translate = ripple.getAttribute('data-translate'); |
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271 | |||
272 | // Get delay beetween mousedown and mouse leave |
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273 | var diff = Date.now() - Number(ripple.getAttribute('data-hold')); |
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274 | var delay = 350 - diff; |
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275 | |||
276 | if (delay < 0) { |
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277 | delay = 0; |
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278 | } |
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279 | |||
280 | if (e.type === 'mousemove') { |
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281 | delay = 150; |
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282 | } |
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283 | |||
284 | // Fade out ripple after delay |
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285 | var duration = e.type === 'mousemove' ? 2500 : Effect.duration; |
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286 | |||
287 | setTimeout(function() { |
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288 | |||
289 | var style = { |
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290 | top: relativeY + 'px', |
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291 | left: relativeX + 'px', |
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292 | opacity: '0', |
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293 | |||
294 | // Duration |
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295 | '-webkit-transition-duration': duration + 'ms', |
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296 | '-moz-transition-duration': duration + 'ms', |
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297 | '-o-transition-duration': duration + 'ms', |
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298 | 'transition-duration': duration + 'ms', |
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299 | '-webkit-transform': scale + ' ' + translate, |
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300 | '-moz-transform': scale + ' ' + translate, |
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301 | '-ms-transform': scale + ' ' + translate, |
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302 | '-o-transform': scale + ' ' + translate, |
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303 | 'transform': scale + ' ' + translate |
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304 | }; |
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305 | |||
306 | ripple.setAttribute('style', convertStyle(style)); |
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307 | |||
308 | setTimeout(function() { |
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309 | try { |
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310 | el.removeChild(ripple); |
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311 | } catch (e) { |
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312 | return false; |
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313 | } |
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314 | }, duration); |
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315 | |||
316 | }, delay); |
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317 | } |
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318 | |||
319 | |||
320 | /** |
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321 | * Disable mousedown event for 500ms during and after touch |
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322 | */ |
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323 | var TouchHandler = { |
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324 | |||
325 | /* uses an integer rather than bool so there's no issues with |
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326 | * needing to clear timeouts if another touch event occurred |
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327 | * within the 500ms. Cannot mouseup between touchstart and |
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328 | * touchend, nor in the 500ms after touchend. */ |
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329 | touches: 0, |
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330 | |||
331 | allowEvent: function(e) { |
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332 | |||
333 | var allow = true; |
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334 | |||
335 | if (/^(mousedown|mousemove)$/.test(e.type) && TouchHandler.touches) { |
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336 | allow = false; |
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337 | } |
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338 | |||
339 | return allow; |
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340 | }, |
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341 | registerEvent: function(e) { |
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342 | var eType = e.type; |
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343 | |||
344 | if (eType === 'touchstart') { |
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345 | |||
346 | TouchHandler.touches += 1; // push |
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347 | |||
348 | } else if (/^(touchend|touchcancel)$/.test(eType)) { |
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349 | |||
350 | setTimeout(function() { |
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351 | if (TouchHandler.touches) { |
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352 | TouchHandler.touches -= 1; // pop after 500ms |
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353 | } |
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354 | }, 500); |
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355 | |||
356 | } |
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357 | } |
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358 | }; |
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359 | |||
360 | |||
361 | /** |
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362 | * Delegated click handler for .waves-effect element. |
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363 | * returns null when .waves-effect element not in "click tree" |
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364 | */ |
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365 | function getWavesEffectElement(e) { |
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366 | |||
367 | if (TouchHandler.allowEvent(e) === false) { |
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368 | return null; |
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369 | } |
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370 | |||
371 | var element = null; |
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372 | var target = e.target || e.srcElement; |
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373 | |||
374 | while (target.parentElement) { |
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375 | if ( (!(target instanceof SVGElement)) && target.classList.contains('waves-effect')) { |
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376 | element = target; |
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377 | break; |
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378 | } |
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379 | target = target.parentElement; |
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380 | } |
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381 | |||
382 | return element; |
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383 | } |
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384 | |||
385 | /** |
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386 | * Bubble the click and show effect if .waves-effect elem was found |
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387 | */ |
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388 | function showEffect(e) { |
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389 | |||
390 | // Disable effect if element has "disabled" property on it |
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391 | // In some cases, the event is not triggered by the current element |
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392 | // if (e.target.getAttribute('disabled') !== null) { |
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393 | // return; |
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394 | // } |
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395 | |||
396 | var element = getWavesEffectElement(e); |
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397 | |||
398 | if (element !== null) { |
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399 | |||
400 | // Make it sure the element has either disabled property, disabled attribute or 'disabled' class |
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401 | if (element.disabled || element.getAttribute('disabled') || element.classList.contains('disabled')) { |
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402 | return; |
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403 | } |
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404 | |||
405 | TouchHandler.registerEvent(e); |
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406 | |||
407 | if (e.type === 'touchstart' && Effect.delay) { |
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408 | |||
409 | var hidden = false; |
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410 | |||
411 | var timer = setTimeout(function () { |
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412 | timer = null; |
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413 | Effect.show(e, element); |
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414 | }, Effect.delay); |
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415 | |||
416 | var hideEffect = function(hideEvent) { |
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417 | |||
418 | // if touch hasn't moved, and effect not yet started: start effect now |
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419 | if (timer) { |
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420 | clearTimeout(timer); |
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421 | timer = null; |
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422 | Effect.show(e, element); |
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423 | } |
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424 | if (!hidden) { |
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425 | hidden = true; |
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426 | Effect.hide(hideEvent, element); |
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427 | } |
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428 | |||
429 | removeListeners(); |
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430 | }; |
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431 | |||
432 | var touchMove = function(moveEvent) { |
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433 | if (timer) { |
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434 | clearTimeout(timer); |
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435 | timer = null; |
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436 | } |
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437 | hideEffect(moveEvent); |
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438 | |||
439 | removeListeners(); |
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440 | }; |
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441 | |||
442 | element.addEventListener('touchmove', touchMove, false); |
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443 | element.addEventListener('touchend', hideEffect, false); |
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444 | element.addEventListener('touchcancel', hideEffect, false); |
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445 | |||
446 | var removeListeners = function() { |
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447 | element.removeEventListener('touchmove', touchMove); |
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448 | element.removeEventListener('touchend', hideEffect); |
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449 | element.removeEventListener('touchcancel', hideEffect); |
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450 | }; |
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451 | } else { |
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452 | |||
453 | Effect.show(e, element); |
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454 | |||
455 | if (isTouchAvailable) { |
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456 | element.addEventListener('touchend', Effect.hide, false); |
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457 | element.addEventListener('touchcancel', Effect.hide, false); |
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458 | } |
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459 | |||
460 | element.addEventListener('mouseup', Effect.hide, false); |
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461 | element.addEventListener('mouseleave', Effect.hide, false); |
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462 | } |
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463 | } |
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464 | } |
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465 | |||
466 | Waves.init = function(options) { |
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467 | var body = document.body; |
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468 | |||
469 | options = options || {}; |
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470 | |||
471 | if ('duration' in options) { |
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472 | Effect.duration = options.duration; |
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473 | } |
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474 | |||
475 | if ('delay' in options) { |
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476 | Effect.delay = options.delay; |
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477 | } |
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478 | |||
479 | if (isTouchAvailable) { |
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480 | body.addEventListener('touchstart', showEffect, false); |
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481 | body.addEventListener('touchcancel', TouchHandler.registerEvent, false); |
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482 | body.addEventListener('touchend', TouchHandler.registerEvent, false); |
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483 | } |
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484 | |||
485 | body.addEventListener('mousedown', showEffect, false); |
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486 | }; |
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487 | |||
488 | |||
489 | /** |
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490 | * Attach Waves to dynamically loaded inputs, or add .waves-effect and other |
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491 | * waves classes to a set of elements. Set drag to true if the ripple mouseover |
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492 | * or skimming effect should be applied to the elements. |
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493 | */ |
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494 | Waves.attach = function(elements, classes) { |
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495 | |||
496 | elements = getWavesElements(elements); |
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497 | |||
498 | if (toString.call(classes) === '[object Array]') { |
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499 | classes = classes.join(' '); |
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500 | } |
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501 | |||
502 | classes = classes ? ' ' + classes : ''; |
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503 | |||
504 | var element, tagName; |
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505 | |||
506 | for (var i = 0, len = elements.length; i < len; i++) { |
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507 | |||
508 | element = elements[i]; |
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509 | tagName = element.tagName.toLowerCase(); |
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510 | |||
511 | if (['input', 'img'].indexOf(tagName) !== -1) { |
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512 | TagWrapper[tagName](element); |
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513 | element = element.parentElement; |
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514 | } |
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515 | |||
516 | if (element.className.indexOf('waves-effect') === -1) { |
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517 | element.className += ' waves-effect' + classes; |
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518 | } |
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519 | } |
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520 | }; |
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521 | |||
522 | |||
523 | /** |
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524 | * Cause a ripple to appear in an element via code. |
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525 | */ |
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526 | Waves.ripple = function(elements, options) { |
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527 | elements = getWavesElements(elements); |
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528 | var elementsLen = elements.length; |
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529 | |||
530 | options = options || {}; |
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531 | options.wait = options.wait || 0; |
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532 | options.position = options.position || null; // default = centre of element |
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533 | |||
534 | |||
535 | if (elementsLen) { |
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536 | var element, pos, off, centre = {}, i = 0; |
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537 | var mousedown = { |
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538 | type: 'mousedown', |
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539 | button: 1 |
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540 | }; |
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541 | var hideRipple = function(mouseup, element) { |
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542 | return function() { |
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543 | Effect.hide(mouseup, element); |
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544 | }; |
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545 | }; |
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546 | |||
547 | for (; i < elementsLen; i++) { |
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548 | element = elements[i]; |
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549 | pos = options.position || { |
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550 | x: element.clientWidth / 2, |
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551 | y: element.clientHeight / 2 |
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552 | }; |
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553 | |||
554 | off = offset(element); |
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555 | centre.x = off.left + pos.x; |
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556 | centre.y = off.top + pos.y; |
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557 | |||
558 | mousedown.pageX = centre.x; |
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559 | mousedown.pageY = centre.y; |
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560 | |||
561 | Effect.show(mousedown, element); |
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562 | |||
563 | if (options.wait >= 0 && options.wait !== null) { |
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564 | var mouseup = { |
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565 | type: 'mouseup', |
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566 | button: 1 |
||
567 | }; |
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568 | |||
569 | setTimeout(hideRipple(mouseup, element), options.wait); |
||
570 | } |
||
571 | } |
||
572 | } |
||
573 | }; |
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574 | |||
575 | /** |
||
576 | * Remove all ripples from an element. |
||
577 | */ |
||
578 | Waves.calm = function(elements) { |
||
579 | elements = getWavesElements(elements); |
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580 | var mouseup = { |
||
581 | type: 'mouseup', |
||
582 | button: 1 |
||
583 | }; |
||
584 | |||
585 | for (var i = 0, len = elements.length; i < len; i++) { |
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586 | Effect.hide(mouseup, elements[i]); |
||
587 | } |
||
588 | }; |
||
589 | |||
590 | /** |
||
591 | * Deprecated API fallback |
||
592 | */ |
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593 | Waves.displayEffect = function(options) { |
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594 | console.error('Waves.displayEffect() has been deprecated and will be removed in future version. Please use Waves.init() to initialize Waves effect'); |
||
595 | Waves.init(options); |
||
596 | }; |
||
597 | |||
598 | return Waves; |
||
599 | }); |
||
600 |