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comparison: dom/tests/mochitest/ajax/mochikit/MochiKit/Position.js
dom/tests/mochitest/ajax/mochikit/MochiKit/Position.js
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| 1 /*** | |
| 2 | |
| 3 MochiKit.Position 1.4 | |
| 4 | |
| 5 See <http://mochikit.com/> for documentation, downloads, license, etc. | |
| 6 | |
| 7 (c) 2005-2006 Bob Ippolito and others. All rights Reserved. | |
| 8 | |
| 9 ***/ | |
| 10 | |
| 11 if (typeof(dojo) != 'undefined') { | |
| 12 dojo.provide('MochiKit.Position'); | |
| 13 dojo.require('MochiKit.Base'); | |
| 14 dojo.require('MochiKit.DOM'); | |
| 15 dojo.require('MochiKit.Style'); | |
| 16 } | |
| 17 if (typeof(JSAN) != 'undefined') { | |
| 18 JSAN.use('MochiKit.Base', []); | |
| 19 JSAN.use('MochiKit.DOM', []); | |
| 20 JSAN.use('MochiKit.Style', []); | |
| 21 } | |
| 22 | |
| 23 try { | |
| 24 if (typeof(MochiKit.Base) == 'undefined' || | |
| 25 typeof(MochiKit.Style) == 'undefined' || | |
| 26 typeof(MochiKit.DOM) == 'undefined') { | |
| 27 throw ''; | |
| 28 } | |
| 29 } catch (e) { | |
| 30 throw 'MochiKit.Style depends on MochiKit.Base, MochiKit.DOM, and MochiKit.Style!'; | |
| 31 } | |
| 32 | |
| 33 if (typeof(MochiKit.Position) == 'undefined') { | |
| 34 MochiKit.Position = {}; | |
| 35 } | |
| 36 | |
| 37 MochiKit.Position.NAME = 'MochiKit.Position'; | |
| 38 MochiKit.Position.VERSION = '1.4'; | |
| 39 MochiKit.Position.__repr__ = function () { | |
| 40 return '[' + this.NAME + ' ' + this.VERSION + ']'; | |
| 41 }; | |
| 42 MochiKit.Position.toString = function () { | |
| 43 return this.__repr__(); | |
| 44 }; | |
| 45 | |
| 46 MochiKit.Position.EXPORT_OK = []; | |
| 47 | |
| 48 MochiKit.Position.EXPORT = [ | |
| 49 ]; | |
| 50 | |
| 51 | |
| 52 MochiKit.Base.update(MochiKit.Position, { | |
| 53 // set to true if needed, warning: firefox performance problems | |
| 54 // NOT neeeded for page scrolling, only if draggable contained in | |
| 55 // scrollable elements | |
| 56 includeScrollOffsets: false, | |
| 57 | |
| 58 /** @id MochiKit.Position.prepare */ | |
| 59 prepare: function () { | |
| 60 var deltaX = window.pageXOffset | |
| 61 || document.documentElement.scrollLeft | |
| 62 || document.body.scrollLeft | |
| 63 || 0; | |
| 64 var deltaY = window.pageYOffset | |
| 65 || document.documentElement.scrollTop | |
| 66 || document.body.scrollTop | |
| 67 || 0; | |
| 68 this.windowOffset = new MochiKit.Style.Coordinates(deltaX, deltaY); | |
| 69 }, | |
| 70 | |
| 71 /** @id MochiKit.Position.cumulativeOffset */ | |
| 72 cumulativeOffset: function (element) { | |
| 73 var valueT = 0; | |
| 74 var valueL = 0; | |
| 75 do { | |
| 76 valueT += element.offsetTop || 0; | |
| 77 valueL += element.offsetLeft || 0; | |
| 78 element = element.offsetParent; | |
| 79 } while (element); | |
| 80 return new MochiKit.Style.Coordinates(valueL, valueT); | |
| 81 }, | |
| 82 | |
| 83 /** @id MochiKit.Position.realOffset */ | |
| 84 realOffset: function (element) { | |
| 85 var valueT = 0; | |
| 86 var valueL = 0; | |
| 87 do { | |
| 88 valueT += element.scrollTop || 0; | |
| 89 valueL += element.scrollLeft || 0; | |
| 90 element = element.parentNode; | |
| 91 } while (element); | |
| 92 return new MochiKit.Style.Coordinates(valueL, valueT); | |
| 93 }, | |
| 94 | |
| 95 /** @id MochiKit.Position.within */ | |
| 96 within: function (element, x, y) { | |
| 97 if (this.includeScrollOffsets) { | |
| 98 return this.withinIncludingScrolloffsets(element, x, y); | |
| 99 } | |
| 100 this.xcomp = x; | |
| 101 this.ycomp = y; | |
| 102 this.offset = this.cumulativeOffset(element); | |
| 103 if (element.style.position == "fixed") { | |
| 104 this.offset.x += this.windowOffset.x; | |
| 105 this.offset.y += this.windowOffset.y; | |
| 106 } | |
| 107 | |
| 108 return (y >= this.offset.y && | |
| 109 y < this.offset.y + element.offsetHeight && | |
| 110 x >= this.offset.x && | |
| 111 x < this.offset.x + element.offsetWidth); | |
| 112 }, | |
| 113 | |
| 114 /** @id MochiKit.Position.withinIncludingScrolloffsets */ | |
| 115 withinIncludingScrolloffsets: function (element, x, y) { | |
| 116 var offsetcache = this.realOffset(element); | |
| 117 | |
| 118 this.xcomp = x + offsetcache.x - this.windowOffset.x; | |
| 119 this.ycomp = y + offsetcache.y - this.windowOffset.y; | |
| 120 this.offset = this.cumulativeOffset(element); | |
| 121 | |
| 122 return (this.ycomp >= this.offset.y && | |
| 123 this.ycomp < this.offset.y + element.offsetHeight && | |
| 124 this.xcomp >= this.offset.x && | |
| 125 this.xcomp < this.offset.x + element.offsetWidth); | |
| 126 }, | |
| 127 | |
| 128 // within must be called directly before | |
| 129 /** @id MochiKit.Position.overlap */ | |
| 130 overlap: function (mode, element) { | |
| 131 if (!mode) { | |
| 132 return 0; | |
| 133 } | |
| 134 if (mode == 'vertical') { | |
| 135 return ((this.offset.y + element.offsetHeight) - this.ycomp) / | |
| 136 element.offsetHeight; | |
| 137 } | |
| 138 if (mode == 'horizontal') { | |
| 139 return ((this.offset.x + element.offsetWidth) - this.xcomp) / | |
| 140 element.offsetWidth; | |
| 141 } | |
| 142 }, | |
| 143 | |
| 144 /** @id MochiKit.Position.absolutize */ | |
| 145 absolutize: function (element) { | |
| 146 element = MochiKit.DOM.getElement(element); | |
| 147 if (element.style.position == 'absolute') { | |
| 148 return; | |
| 149 } | |
| 150 MochiKit.Position.prepare(); | |
| 151 | |
| 152 var offsets = MochiKit.Position.positionedOffset(element); | |
| 153 var width = element.clientWidth; | |
| 154 var height = element.clientHeight; | |
| 155 | |
| 156 var oldStyle = { | |
| 157 'position': element.style.position, | |
| 158 'left': offsets.x - parseFloat(element.style.left || 0), | |
| 159 'top': offsets.y - parseFloat(element.style.top || 0), | |
| 160 'width': element.style.width, | |
| 161 'height': element.style.height | |
| 162 }; | |
| 163 | |
| 164 element.style.position = 'absolute'; | |
| 165 element.style.top = offsets.y + 'px'; | |
| 166 element.style.left = offsets.x + 'px'; | |
| 167 element.style.width = width + 'px'; | |
| 168 element.style.height = height + 'px'; | |
| 169 | |
| 170 return oldStyle; | |
| 171 }, | |
| 172 | |
| 173 /** @id MochiKit.Position.positionedOffset */ | |
| 174 positionedOffset: function (element) { | |
| 175 var valueT = 0, valueL = 0; | |
| 176 do { | |
| 177 valueT += element.offsetTop || 0; | |
| 178 valueL += element.offsetLeft || 0; | |
| 179 element = element.offsetParent; | |
| 180 if (element) { | |
| 181 p = MochiKit.Style.getStyle(element, 'position'); | |
| 182 if (p == 'relative' || p == 'absolute') { | |
| 183 break; | |
| 184 } | |
| 185 } | |
| 186 } while (element); | |
| 187 return new MochiKit.Style.Coordinates(valueL, valueT); | |
| 188 }, | |
| 189 | |
| 190 /** @id MochiKit.Position.relativize */ | |
| 191 relativize: function (element, oldPos) { | |
| 192 element = MochiKit.DOM.getElement(element); | |
| 193 if (element.style.position == 'relative') { | |
| 194 return; | |
| 195 } | |
| 196 MochiKit.Position.prepare(); | |
| 197 | |
| 198 var top = parseFloat(element.style.top || 0) - | |
| 199 (oldPos['top'] || 0); | |
| 200 var left = parseFloat(element.style.left || 0) - | |
| 201 (oldPos['left'] || 0); | |
| 202 | |
| 203 element.style.position = oldPos['position']; | |
| 204 element.style.top = top + 'px'; | |
| 205 element.style.left = left + 'px'; | |
| 206 element.style.width = oldPos['width']; | |
| 207 element.style.height = oldPos['height']; | |
| 208 }, | |
| 209 | |
| 210 /** @id MochiKit.Position.clone */ | |
| 211 clone: function (source, target) { | |
| 212 source = MochiKit.DOM.getElement(source); | |
| 213 target = MochiKit.DOM.getElement(target); | |
| 214 target.style.position = 'absolute'; | |
| 215 var offsets = this.cumulativeOffset(source); | |
| 216 target.style.top = offsets.y + 'px'; | |
| 217 target.style.left = offsets.x + 'px'; | |
| 218 target.style.width = source.offsetWidth + 'px'; | |
| 219 target.style.height = source.offsetHeight + 'px'; | |
| 220 }, | |
| 221 | |
| 222 /** @id MochiKit.Position.page */ | |
| 223 page: function (forElement) { | |
| 224 var valueT = 0; | |
| 225 var valueL = 0; | |
| 226 | |
| 227 var element = forElement; | |
| 228 do { | |
| 229 valueT += element.offsetTop || 0; | |
| 230 valueL += element.offsetLeft || 0; | |
| 231 | |
| 232 // Safari fix | |
| 233 if (element.offsetParent == document.body && MochiKit.Style.getStyle(element, 'position') == 'absolute') { | |
| 234 break; | |
| 235 } | |
| 236 } while (element = element.offsetParent); | |
| 237 | |
| 238 element = forElement; | |
| 239 do { | |
| 240 valueT -= element.scrollTop || 0; | |
| 241 valueL -= element.scrollLeft || 0; | |
| 242 } while (element = element.parentNode); | |
| 243 | |
| 244 return new MochiKit.Style.Coordinates(valueL, valueT); | |
| 245 } | |
| 246 }); | |
| 247 | |
| 248 MochiKit.Position.__new__ = function (win) { | |
| 249 var m = MochiKit.Base; | |
| 250 this.EXPORT_TAGS = { | |
| 251 ':common': this.EXPORT, | |
| 252 ':all': m.concat(this.EXPORT, this.EXPORT_OK) | |
| 253 }; | |
| 254 | |
| 255 m.nameFunctions(this); | |
| 256 }; | |
| 257 | |
| 258 MochiKit.Position.__new__(this); |
