Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 672:f996df5dea63 jquery
dragging birdview zooms correctly now
| author | hertzhaft |
|---|---|
| date | Wed, 26 Jan 2011 01:26:45 +0100 |
| parents | ba582354e659 |
| children | 05a17fdd37a8 |
| rev | line source |
|---|---|
| 597 | 1 /* |
| 2 * digilib jQuery plugin | |
| 3 * | |
| 4 */ | |
| 648 | 5 |
| 629 | 6 // fallback for console.log calls |
| 7 if (typeof(console) === 'undefined') { | |
| 8 var console = { | |
| 9 log : function(){}, | |
| 10 debug : function(){}, | |
| 11 error : function(){} | |
| 12 }; | |
| 13 } | |
| 597 | 14 |
| 15 (function($) { | |
|
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16 var buttons = { |
| 603 | 17 reference : { |
| 18 onclick : "javascript:getRefWin()", | |
| 19 tooltip : "get a reference URL", | |
| 20 img : "reference.png" | |
| 21 }, | |
| 22 zoomin : { | |
| 636 | 23 onclick : ["zoomBy", 1.4], |
| 603 | 24 tooltip : "zoom in", |
| 25 img : "zoom-in.png" | |
| 26 }, | |
| 27 zoomout : { | |
| 636 | 28 onclick : ["zoomBy", 0.7], |
| 603 | 29 tooltip : "zoom out", |
| 30 img : "zoom-out.png" | |
| 31 }, | |
| 32 zoomarea : { | |
| 647 | 33 onclick : "zoomArea", |
| 603 | 34 tooltip : "zoom area", |
| 35 img : "zoom-area.png" | |
| 36 }, | |
| 37 zoomfull : { | |
| 643 | 38 onclick : "zoomFull", |
| 603 | 39 tooltip : "view the whole image", |
| 40 img : "zoom-full.png" | |
| 41 }, | |
| 42 pagewidth : { | |
| 643 | 43 onclick : ["zoomFull", "width"], |
| 603 | 44 tooltip : "page width", |
| 45 img : "pagewidth.png" | |
| 46 }, | |
| 47 back : { | |
| 616 | 48 onclick : ["gotoPage", "-1"], |
| 603 | 49 tooltip : "goto previous image", |
| 50 img : "back.png" | |
| 51 }, | |
| 52 fwd : { | |
| 616 | 53 onclick : ["gotoPage", "+1"], |
| 603 | 54 tooltip : "goto next image", |
| 55 img : "fwd.png" | |
| 56 }, | |
| 57 page : { | |
| 58 onclick : "javascript:gotoPageWin()", | |
| 59 tooltip : "specify image", | |
| 60 img : "page.png" | |
| 61 }, | |
| 62 bird : { | |
| 628 | 63 onclick : "showBirdDiv", |
| 603 | 64 tooltip : "show bird's eye view", |
| 65 img : "birds-eye.png" | |
| 66 }, | |
| 67 help : { | |
| 628 | 68 onclick : "showAboutDiv", |
| 603 | 69 tooltip : "about Digilib", |
| 70 img : "help.png" | |
| 71 }, | |
| 72 reset : { | |
| 73 onclick : "javascript:resetImage()", | |
| 74 tooltip : "reset image", | |
| 75 img : "reset.png" | |
| 76 }, | |
| 77 mark : { | |
| 640 | 78 onclick : "setMark", |
| 603 | 79 tooltip : "set a mark", |
| 80 img : "mark.png" | |
| 81 }, | |
| 82 delmark : { | |
| 643 | 83 onclick : "removeMark", |
| 603 | 84 tooltip : "delete the last mark", |
| 85 img : "delmark.png" | |
| 86 }, | |
| 87 hmir : { | |
| 654 | 88 onclick : ["mirror", "h"], |
| 603 | 89 tooltip : "mirror horizontally", |
| 90 img : "mirror-horizontal.png" | |
| 91 }, | |
| 92 vmir : { | |
| 654 | 93 onclick : ["mirror", "v"], |
| 603 | 94 tooltip : "mirror vertically", |
| 95 img : "mirror-vertical.png" | |
| 96 }, | |
| 97 rot : { | |
| 656 | 98 onclick : "rotate", |
| 603 | 99 tooltip : "rotate image", |
| 100 img : "rotate.png" | |
| 101 }, | |
| 102 brgt : { | |
| 656 | 103 onclick : "brightness", |
| 603 | 104 tooltip : "set brightness", |
| 105 img : "brightness.png" | |
| 106 }, | |
| 107 cont : { | |
| 656 | 108 onclick : "contrast", |
| 603 | 109 tooltip : "set contrast", |
| 110 img : "contrast.png" | |
| 111 }, | |
| 112 rgb : { | |
| 113 onclick : "javascript:setParamWin('rgb', '...')", | |
| 114 tooltip : "set rgb values", | |
| 115 img : "rgb.png" | |
| 116 }, | |
| 117 quality : { | |
| 118 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
| 119 tooltip : "set image quality", | |
| 120 img : "quality.png" | |
| 121 }, | |
| 122 size : { | |
| 123 onclick : "javascript:toggleSizeMenu()", | |
| 124 tooltip : "set page size", | |
| 125 img : "size.png" | |
| 126 }, | |
| 127 calibrationx : { | |
| 128 onclick : "javascript:calibrate('x')", | |
| 129 tooltip : "calibrate screen x-ratio", | |
| 130 img : "calibration-x.png" | |
| 131 }, | |
| 132 scale : { | |
| 133 onclick : "javascript:toggleScaleMenu()", | |
| 134 tooltip : "change image scale", | |
| 135 img : "original-size.png" | |
| 136 }, | |
| 137 options : { | |
| 138 onclick : "javascript:toggleOptionDiv()", | |
| 139 tooltip : "hide options", | |
| 140 img : "options.png" | |
| 141 }, | |
| 142 SEP : { | |
| 143 img : "sep.png" | |
| 144 } | |
| 145 }; | |
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146 |
| 598 | 147 var defaults = { |
| 609 | 148 // version of this script |
| 628 | 149 'version' : 'jquery.digilib.js 0.9', |
| 609 | 150 // logo url |
| 151 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 152 // homepage url (behind logo) |
| 153 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 154 // base URL to Scaler servlet |
| 645 | 155 'scalerBaseUrl' : null, |
| 603 | 156 // list of Scaler parameters |
| 620 | 157 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 158 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 159 // Scaler parameter defaults | |
| 636 | 160 'pn' : 1, |
| 620 | 161 'ww' : 1.0, |
| 162 'wh' : 1.0, | |
| 163 'wx' : 0.0, | |
| 164 'wy' : 0.0, | |
| 165 'ws' : 1.0, | |
| 636 | 166 'mo' : '', |
| 167 'rot' : 0, | |
| 168 'cont' : 0, | |
| 169 'brgt' : 0, | |
| 170 'rgbm' : '0/0/0', | |
| 171 'rgba' : '0/0/0', | |
| 172 'ddpi' : null, | |
| 173 'ddpix' : null, | |
| 174 'ddpiy' : null, | |
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175 // list of digilib parameters |
| 643 | 176 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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177 // digilib parameter defaults |
| 636 | 178 'mk' : '', |
| 643 | 179 'clop' : '', |
| 636 | 180 // mode of operation: |
| 181 // fullscreen = take parameters from page URL, keep state in page URL | |
| 182 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 183 'interactionMode' : 'fullscreen', |
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184 // buttons |
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185 'buttons' : buttons, |
| 661 | 186 // defaults for digilib buttons |
| 658 | 187 'buttonSettings' : { |
| 188 'fullscreen' : { | |
| 661 | 189 // path to button images (must end with a slash) |
| 658 | 190 'imagePath' : 'img/fullscreen/', |
| 191 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], | |
| 192 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","options"], | |
| 193 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
| 194 'customSet' : [] | |
| 195 }, | |
| 196 'embedded' : { | |
| 197 'imagePath' : 'img/embedded/16/', | |
| 198 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","options"], | |
| 199 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
| 200 'customSet' : [] | |
| 201 } | |
| 202 }, | |
| 645 | 203 // button groups |
| 609 | 204 // is birdView shown? |
| 205 'isBirdDivVisible' : false, | |
| 661 | 206 // dimensions of bird's eye div |
| 667 | 207 'birdDivWidth' : 200, |
| 208 'birdDivHeight' : 200, | |
| 661 | 209 // style of the zoom area indicator in the bird's eye div |
| 652 | 210 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 211 // style of zoom area "rubber band" |
| 212 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 213 // is the "about" window shown? |
| 214 'isAboutDivVisible' : false | |
| 215 | |
| 603 | 216 }; |
| 648 | 217 |
| 601 | 218 // affine geometry classes |
| 219 var geom = dlGeometry(); | |
| 648 | 220 |
| 636 | 221 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 222 |
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223 var actions = { |
| 661 | 224 // init: digilib initialization |
| 225 init : function(options) { | |
| 226 // settings for this digilib instance are merged from defaults and options | |
| 227 var settings = $.extend({}, defaults, options); | |
| 228 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 229 var queryParams = {}; | |
| 230 if (isFullscreen) { | |
| 231 queryParams = parseQueryParams(); | |
| 232 // check scalerBaseUrl | |
| 233 if (settings.scalerBaseUrl == null) { | |
| 234 // try the host this came from | |
| 235 var h = window.location.host; | |
| 236 if (window.location.host) { | |
| 237 var url = window.location.href; | |
| 238 // assume the page lives in [webapp]/jquery/ | |
| 239 var pos = url.indexOf('jquery/'); | |
| 240 if (pos > 0) { | |
| 241 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 242 } |
| 243 } | |
| 629 | 244 } |
| 661 | 245 } |
| 246 return this.each(function() { | |
| 247 var $elem = $(this); | |
| 248 var data = $elem.data('digilib'); | |
| 249 var elemSettings; | |
| 250 // if the plugin hasn't been initialized yet | |
| 251 if (!data) { | |
| 252 // merge query parameters | |
| 253 if (isFullscreen) { | |
| 254 elemSettings = $.extend({}, settings, queryParams); | |
| 255 } else { | |
| 256 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 597 | 257 } |
| 661 | 258 // store $(this) element in the settings |
| 259 data = { | |
| 260 $elem : $elem, | |
| 261 settings : elemSettings, | |
| 262 queryParams : queryParams | |
| 263 }; | |
| 264 // store in data element | |
| 265 $elem.data('digilib', data); | |
| 266 } | |
| 267 unpackParams(data); | |
| 268 // create HTML structure | |
| 269 setupScalerDiv(data); | |
| 270 setupButtons(data, 'standardSet'); | |
| 271 // bird's eye view creation | |
| 272 if (elemSettings.isBirdDivVisible) { | |
| 631 | 273 setupBirdDiv(data); |
| 274 } | |
| 661 | 275 // about window creation - TODO: could be deferred? restrict to only one item? |
| 276 setupAboutDiv(data); | |
| 277 }); | |
| 278 }, | |
| 279 | |
| 280 // destroy: clean up digilib | |
| 281 destroy : function(data) { | |
| 282 return this.each(function(){ | |
| 283 var $elem = $(this); | |
| 284 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 285 data.digilib.remove(); | |
| 286 $elem.removeData('digilib'); | |
| 287 }); | |
| 288 }, | |
| 289 | |
| 290 // show or hide the 'about' window | |
| 291 showAboutDiv : function(data, show) { | |
| 292 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 293 }, | |
| 648 | 294 |
| 661 | 295 // event handler: toggles the visibility of the bird's eye window |
| 296 showBirdDiv : function (data, show) { | |
| 297 if (data.$birdDiv == null) { | |
| 298 // no bird div -> create | |
| 299 setupBirdDiv(data); | |
| 300 } | |
| 301 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 302 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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303 data.$birdImg.triggerHandler('load'); |
| 661 | 304 }, |
| 305 | |
| 306 // goto given page nr (+/-: relative) | |
| 307 gotoPage : function (data, pageNr) { | |
| 308 var settings = data.settings; | |
| 309 var oldpn = settings.pn; | |
| 310 var pn = setNumValue(settings, "pn", pageNr); | |
| 311 if (pn == null) return false; // nothing happened | |
| 312 if (pn < 1) { | |
| 313 alert("no such page (page number too low)"); | |
| 314 settings.pn = oldpn; | |
| 315 return false; | |
| 316 } | |
| 317 if (settings.pt) { | |
| 318 if (pn > settings.pt) { | |
| 319 alert("no such page (page number too high)"); | |
| 616 | 320 settings.pn = oldpn; |
| 321 return false; | |
| 627 | 322 } |
| 661 | 323 } |
| 324 // reset mk and others(?) | |
| 325 data.marks = []; | |
| 326 data.zoomArea = MAX_ZOOMAREA; | |
| 327 // then reload | |
| 328 redisplay(data); | |
| 329 }, | |
| 647 | 330 |
| 661 | 331 // zoom by a given factor |
| 332 zoomBy : function (data, factor) { | |
| 333 zoomBy(data, factor); | |
| 334 }, | |
| 640 | 335 |
| 661 | 336 // zoom interactively |
| 337 zoomArea : function (data) { | |
| 338 zoomArea(data); | |
| 339 }, | |
| 643 | 340 |
| 661 | 341 // zoom out to full page |
| 342 zoomFull : function (data, mode) { | |
| 343 data.zoomArea = MAX_ZOOMAREA; | |
| 344 if (mode === 'width') { | |
| 345 data.dlOpts.fitwidth = 1; | |
| 346 delete data.dlOpts.fitheight; | |
| 347 } else if (mode === 'height') { | |
| 348 data.dlOpts.fitheight = 1; | |
| 349 delete data.dlOpts.fitwidth; | |
| 350 } else { | |
| 351 delete data.dlOpts.fitwidth; | |
| 352 delete data.dlOpts.fitheight; | |
| 353 } | |
| 354 redisplay(data); | |
| 355 }, | |
| 356 | |
| 357 // set a mark by clicking (or giving a position) | |
| 358 setMark : function (data, mpos) { | |
| 359 if (mpos == null) { | |
| 360 // interactive | |
| 361 setMark(data); | |
| 362 } else { | |
| 363 // use position | |
| 364 data.marks.push(pos); | |
| 656 | 365 redisplay(data); |
| 597 | 366 } |
| 661 | 367 }, |
| 368 | |
| 369 // remove the last mark | |
| 370 removeMark : function (data) { | |
| 371 data.marks.pop(); | |
| 372 redisplay(data); | |
| 373 }, | |
| 374 | |
| 375 // mirror the image | |
| 376 mirror : function (data, mode) { | |
| 377 var flags = data.scalerFlags; | |
| 378 if (mode === 'h') { | |
| 379 if (flags.hmir) { | |
| 380 delete flags.hmir; | |
| 381 } else { | |
| 382 flags.hmir = 1; | |
| 383 } | |
| 384 } else { | |
| 385 if (flags.vmir) { | |
| 386 delete flags.vmir; | |
| 387 } else { | |
| 388 flags.vmir = 1; | |
| 389 } | |
| 390 } | |
| 391 redisplay(data); | |
| 392 }, | |
| 643 | 393 |
| 661 | 394 // rotate the image |
| 395 rotate : function (data, angle) { | |
| 396 var rot = data.settings.rot; | |
| 397 if (angle == null) { | |
| 398 angle = window.prompt("Rotation angle:", rot); | |
| 399 } | |
| 400 data.settings.rot = angle; | |
| 401 redisplay(data); | |
| 402 }, | |
| 403 | |
| 404 // change brightness | |
| 405 brightness : function (data, factor) { | |
| 406 var brgt = data.settings.brgt; | |
| 407 if (factor == null) { | |
| 408 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 409 } | |
| 410 data.settings.brgt = factor; | |
| 411 redisplay(data); | |
| 412 }, | |
| 413 | |
| 414 // change contrast | |
| 415 contrast : function (data, factor) { | |
| 416 var cont = data.settings.cont; | |
| 417 if (factor == null) { | |
| 418 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 419 } | |
| 420 data.settings.cont = factor; | |
| 421 redisplay(data); | |
| 422 } | |
| 598 | 423 }; |
| 597 | 424 |
| 601 | 425 // returns parameters from page url |
| 600 | 426 var parseQueryParams = function() { |
| 629 | 427 return parseQueryString(window.location.search.slice(1)); |
| 428 }; | |
| 648 | 429 |
| 629 | 430 // returns parameters from embedded img-element |
| 600 | 431 var parseImgParams = function($elem) { |
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432 var src = $elem.find('img').first().attr('src'); |
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433 if (!src) { |
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434 return null; |
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435 } |
| 600 | 436 var pos = src.indexOf('?'); |
| 437 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 438 var scalerUrl = src.substring(0, pos); | |
| 620 | 439 var params = parseQueryString(query); |
| 440 params.scalerBaseUrl = scalerUrl; | |
| 441 return params; | |
| 629 | 442 }; |
| 600 | 443 |
| 601 | 444 // parses query parameter string into parameter object |
| 600 | 445 var parseQueryString = function(query) { |
| 446 var pairs = query.split("&"); | |
| 620 | 447 var params = {}; |
| 629 | 448 //var keys = []; |
| 600 | 449 for (var i = 0; i < pairs.length; i++) { |
| 450 var pair = pairs[i].split("="); | |
| 451 if (pair.length === 2) { | |
| 620 | 452 params[pair[0]] = pair[1]; |
| 629 | 453 //keys.push(pair[0]); |
| 627 | 454 } |
| 629 | 455 } |
| 620 | 456 return params; |
| 629 | 457 }; |
| 661 | 458 |
| 636 | 459 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 460 var getParamString = function (settings, keys, defaults) { | |
| 608 | 461 var paramString = ''; |
| 643 | 462 var nx = false; |
| 608 | 463 for (i = 0; i < keys.length; ++i) { |
| 464 var key = keys[i]; | |
| 656 | 465 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 466 // first param gets no '&' |
| 643 | 467 if (nx) { |
| 468 paramString += '&'; | |
| 469 } else { | |
| 470 nx = true; | |
| 471 } | |
| 608 | 472 // add parm=val |
| 473 paramString += key + '=' + settings[key]; | |
| 636 | 474 } |
| 608 | 475 } |
| 476 return paramString; | |
| 624 | 477 }; |
| 478 | |
| 629 | 479 // returns URL and query string for Scaler |
| 480 var getScalerUrl = function (data) { | |
| 646 | 481 var settings = data.settings; |
| 645 | 482 if (settings.scalerBaseUrl == null) { |
| 483 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 484 } | |
| 658 | 485 packParams(data); |
| 629 | 486 var keys = settings.scalerParamNames; |
| 636 | 487 var queryString = getParamString(settings, keys, defaults); |
| 629 | 488 var url = settings.scalerBaseUrl + '?' + queryString; |
| 489 return url; | |
| 490 }; | |
| 491 | |
| 492 // returns URL and query string for current digilib | |
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493 var getDigilibUrl = function (data) { |
| 636 | 494 packParams(data); |
| 629 | 495 var settings = data.settings; |
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496 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 497 var url = window.location.toString(); |
| 498 var pos = url.indexOf('?'); | |
| 499 var baseUrl = url.substring(0, pos); | |
| 500 var newurl = baseUrl + '?' + queryString; | |
| 501 return newurl; | |
| 502 }; | |
| 503 | |
| 648 | 504 // processes some parameters into objects and stuff |
| 624 | 505 var unpackParams = function (data) { |
| 506 var settings = data.settings; | |
| 629 | 507 // zoom area |
| 624 | 508 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 509 data.zoomArea = zoomArea; |
| 629 | 510 // marks |
| 624 | 511 var marks = []; |
| 643 | 512 if (settings.mk) { |
| 513 var mk = settings.mk; | |
| 514 if (mk.indexOf(";") >= 0) { | |
| 515 var pa = mk.split(";"); // old format with ";" | |
| 516 } else { | |
| 517 var pa = mk.split(","); // new format | |
| 518 } | |
| 519 for (var i = 0; i < pa.length ; i++) { | |
| 520 var pos = pa[i].split("/"); | |
| 521 if (pos.length > 1) { | |
| 522 marks.push(geom.position(pos[0], pos[1])); | |
| 523 } | |
| 626 | 524 } |
| 624 | 525 } |
| 636 | 526 data.marks = marks; |
| 643 | 527 // mo (Scaler flags) |
| 528 var flags = {}; | |
| 529 if (settings.mo) { | |
| 530 var pa = settings.mo.split(","); | |
| 531 for (var i = 0; i < pa.length ; i++) { | |
| 532 flags[pa[i]] = pa[i]; | |
| 533 } | |
| 534 } | |
| 535 data.scalerFlags = flags; | |
| 536 // clop (digilib options) | |
| 537 var opts = {}; | |
| 538 if (settings.clop) { | |
| 539 var pa = settings.clop.split(","); | |
| 540 for (var i = 0; i < pa.length ; i++) { | |
| 541 opts[pa[i]] = pa[i]; | |
| 542 } | |
| 543 } | |
| 544 data.dlOpts = opts; | |
| 654 | 545 // birdview option |
| 546 if (opts.birdview) { | |
| 547 settings.isBirdDivVisible = 1; | |
| 548 } | |
| 648 | 549 }; |
| 550 | |
| 624 | 551 // put objects back into parameters |
| 552 var packParams = function (data) { | |
| 553 var settings = data.settings; | |
| 629 | 554 // zoom area |
| 636 | 555 if (data.zoomArea) { |
| 640 | 556 settings.wx = cropFloat(data.zoomArea.x); |
| 557 settings.wy = cropFloat(data.zoomArea.y); | |
| 558 settings.ww = cropFloat(data.zoomArea.width); | |
| 559 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 560 } |
| 629 | 561 // marks |
| 636 | 562 if (data.marks) { |
| 643 | 563 settings.mk = ''; |
| 636 | 564 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 565 if (i) { |
| 566 settings.mk += ','; | |
| 567 } | |
| 568 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 569 } |
| 643 | 570 } |
| 571 // Scaler flags | |
| 572 if (data.scalerFlags) { | |
| 573 var mo = ''; | |
| 574 for (var f in data.scalerFlags) { | |
| 575 if (mo) { | |
| 576 mo += ','; | |
| 577 } | |
| 578 mo += f; | |
| 579 } | |
| 580 settings.mo = mo; | |
| 581 } | |
| 654 | 582 // digilib option birdview |
| 583 if (settings.isBirdDivVisible) { | |
| 584 data.dlOpts.birdview = 1; | |
| 655 | 585 } else { |
| 586 delete data.dlOpts.birdview; | |
| 654 | 587 } |
| 643 | 588 // digilib options |
| 589 if (data.dlOpts) { | |
| 590 var clop = ''; | |
| 591 for (var o in data.dlOpts) { | |
| 592 if (clop) { | |
| 593 clop += ','; | |
| 594 } | |
| 595 clop += o; | |
| 596 } | |
| 597 settings.clop = clop; | |
| 624 | 598 } |
| 599 }; | |
| 648 | 600 |
| 615 | 601 // (re)load the img from a new scaler URL |
|
637
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602 var redisplay = function (data) { |
| 629 | 603 var settings = data.settings; |
| 604 if (settings.interactionMode === 'fullscreen') { | |
| 605 // update location.href (browser URL) in fullscreen mode | |
|
637
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606 var url = getDigilibUrl(data); |
| 629 | 607 var history = window.history; |
| 608 if (typeof(history.pushState) === 'function') { | |
| 609 console.debug("we could modify history, but we don't..."); | |
| 610 } | |
| 611 window.location = url; | |
| 612 } else { | |
| 613 // embedded mode -- just change img src | |
| 614 var url = getScalerUrl(data); | |
| 615 data.$img.attr('src', url); | |
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616 // and update bird's eye view |
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617 //if (settings.isBirdDivVisible) { |
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618 // renderBirdZoom(data); |
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619 //} |
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620 }; |
| 615 | 621 }; |
| 622 | |
| 655 | 623 // returns maximum size for scaler img in fullscreen mode |
| 624 var getFullscreenImgSize = function($elem) { | |
| 625 var $win = $(window); | |
| 626 var winH = $win.height(); | |
| 627 var winW = $win.width(); | |
| 628 // TODO: account for borders? | |
| 629 return geom.size(winW, winH); | |
| 630 }; | |
| 631 | |
| 601 | 632 // creates HTML structure for digilib in elem |
| 620 | 633 var setupScalerDiv = function (data) { |
| 634 var settings = data.settings; | |
| 640 | 635 var $elem = data.$elem; |
| 616 | 636 var $img; |
| 601 | 637 if (settings.interactionMode === 'fullscreen') { |
| 602 | 638 // fullscreen |
| 639 var imgSize = getFullscreenImgSize($elem); | |
| 643 | 640 // fitwidth/height omits destination height/width |
| 641 if (data.dlOpts['fitheight'] == null) { | |
| 642 settings.dw = imgSize.width; | |
| 643 } | |
| 644 if (data.dlOpts['fitwidth'] == null) { | |
| 645 settings.dh = imgSize.height; | |
| 646 } | |
|
606
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647 $img = $('<img/>'); |
| 629 | 648 var scalerUrl = getScalerUrl(data); |
| 649 $img.attr('src', scalerUrl); | |
| 602 | 650 } else { |
|
606
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651 // embedded mode -- try to keep img tag |
| 616 | 652 $img = $elem.find('img'); |
|
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653 if ($img.length > 0) { |
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654 console.debug("img detach:",$img); |
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655 $img.detach(); |
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656 } else { |
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657 $img = $('<img/>'); |
| 629 | 658 var scalerUrl = getScalerUrl(data); |
| 659 $img.attr('src', scalerUrl); | |
|
606
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660 } |
| 601 | 661 } |
|
606
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662 // create new html |
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663 $elem.empty(); // TODO: should we keep stuff for customization? |
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664 var $scaler = $('<div class="scaler"/>'); |
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665 $elem.append($scaler); |
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666 $scaler.append($img); |
| 615 | 667 $img.addClass('pic'); |
| 642 | 668 data.$scaler = $scaler; |
| 629 | 669 data.$img = $img; |
| 670 $img.load(scalerImgLoadedHandler(data)); | |
| 601 | 671 }; |
| 608 | 672 |
| 603 | 673 // creates HTML structure for buttons in elem |
|
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674 var setupButtons = function (data, actionGroup) { |
| 640 | 675 var $elem = data.$elem; |
|
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676 var settings = data.settings; |
| 658 | 677 // if (settings.interactionMode === 'fullscreen') { |
| 678 var $buttonsDiv = $('<div class="buttons"></div>'); | |
| 679 $elem.append($buttonsDiv); | |
| 680 var mode = settings.interactionMode; | |
|
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681 var buttonSettings = settings.buttonSettings[mode]; |
| 658 | 682 var actionNames = buttonSettings[actionGroup]; |
| 683 for (var i = 0; i < actionNames.length; i++) { | |
| 684 var actionName = actionNames[i]; | |
| 685 var buttonConfig = settings.buttons[actionName]; | |
| 686 // construct the button html | |
| 687 var $button = $('<div class="button"></div>'); | |
| 688 var $a = $('<a/>'); | |
| 689 var $img = $('<img class="button"/>'); | |
| 690 $buttonsDiv.append($button); | |
| 691 $button.append($a); | |
| 692 $a.append($img); | |
| 693 // add attributes and bindings | |
| 694 $button.attr('title', buttonConfig.tooltip); | |
| 695 $button.addClass('button-' + actionName); | |
| 696 // create handler for the buttons | |
| 697 $a.bind('click.digilib', (function () { | |
| 698 // we create a new closure to capture the value of action | |
| 699 var action = buttonConfig.onclick; | |
| 700 if ($.isArray(action)) { | |
| 701 // the handler function calls digilib with action and parameters | |
| 702 return function (evt) { | |
| 703 console.debug('click action=', action, ' evt=', evt); | |
| 704 $elem.digilib.apply($elem, action); | |
| 705 return false; | |
| 706 }; | |
| 707 } else { | |
| 708 // the handler function calls digilib with action | |
| 709 return function (evt) { | |
| 710 console.debug('click action=', action, ' evt=', evt); | |
| 711 $elem.digilib(action); | |
| 712 return false; | |
| 713 }; | |
| 714 } | |
| 715 })()); | |
| 716 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 630 | 717 } |
| 655 | 718 // make buttons div scroll if too large for window |
| 719 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 720 $buttonsDiv.css('position', 'absolute'); | |
| 721 } | |
| 605 | 722 return $buttonsDiv; |
| 603 | 723 }; |
| 608 | 724 |
| 725 // creates HTML structure for the bird's eye view in elem | |
| 631 | 726 var setupBirdDiv = function (data) { |
| 640 | 727 var $elem = data.$elem; |
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728 var settings = data.settings; |
| 608 | 729 // use only the relevant parameters |
| 730 var keys = ['fn','pn','dw','dh']; | |
| 667 | 731 var birdDivOptions = { |
| 732 dw : settings.birdDivWidth, | |
| 733 dh : settings.birdDivHeight | |
| 734 }; | |
| 735 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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736 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 737 // the bird's eye div |
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738 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 739 // the detail indicator frame |
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740 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 741 // the small image |
| 742 var $birdImg = $('<img class="birdimg"/>'); | |
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743 $elem.append($birdDiv); |
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744 $birdDiv.append($birdZoom); |
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745 $birdDiv.append($birdImg); |
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746 $birdZoom.css(data.settings.birdIndicatorStyle); |
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747 data.$birdDiv = $birdDiv; |
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748 data.$birdZoom = $birdZoom; |
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749 data.$birdImg = $birdImg; |
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750 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 751 $birdImg.attr('src', birdUrl); |
|
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752 if (data.settings.isBirdDivVisible) { |
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753 $birdDiv.fadeIn(); |
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754 }; |
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755 birdZoom(data); |
|
633
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756 }; |
| 608 | 757 |
| 618 | 758 // creates HTML structure for the about view in elem |
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759 var setupAboutDiv = function (data) { |
| 640 | 760 var $elem = data.$elem; |
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761 var settings = data.settings; |
| 618 | 762 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 763 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 764 var $link = $('<a/>'); | |
| 765 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 766 var $content = $('<p/>'); | |
| 767 $elem.append($aboutDiv); | |
| 768 $aboutDiv.append($header); | |
| 769 $aboutDiv.append($link); | |
| 770 $aboutDiv.append($content); | |
| 771 $link.append($logo); | |
| 772 $logo.attr('src', settings.logoUrl); | |
| 628 | 773 $link.attr('href', settings.homeUrl); |
| 609 | 774 $content.text('Version: ' + settings.version); |
| 628 | 775 // click hides |
| 642 | 776 $aboutDiv.bind('click.digilib', function () { |
| 639 | 777 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 778 return false; |
| 779 }); | |
| 628 | 780 data.$aboutDiv = $aboutDiv; |
| 627 | 781 }; |
| 782 | |
| 628 | 783 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 784 var showDiv = function (isVisible, $div, show) { | |
| 638 | 785 if (show == null) { |
| 628 | 786 // toggle visibility |
| 787 isVisible = !isVisible; | |
| 788 } else { | |
| 789 // set visibility | |
| 790 isVisible = show; | |
| 791 } | |
| 792 if (isVisible) { | |
| 793 $div.fadeIn(); | |
| 794 } else { | |
| 795 $div.fadeOut(); | |
| 796 } | |
| 797 return isVisible; | |
| 627 | 798 }; |
| 609 | 799 |
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800 // create Transform from area and $img |
| 668 | 801 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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802 var picrect = geom.rectangle($img); |
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803 var trafo = geom.transform(); |
| 668 | 804 // move zoom area offset to center |
|
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805 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 806 // scale zoom area size to [1,1] |
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807 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 808 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 809 if (rot || hmir || vmir) { | |
| 810 // move [0.5,0.5] to center | |
| 811 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 812 if (hmir) { | |
| 813 // mirror about center | |
| 814 trafo.concat(trafo.getMirror('y')); | |
| 815 } | |
| 816 if (vmir) { | |
| 817 // mirror about center | |
| 818 trafo.concat(trafo.getMirror('x')); | |
| 819 } | |
| 820 if (rot) { | |
| 821 // rotate around center | |
| 822 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 823 } | |
| 824 // move back | |
| 825 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
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826 } |
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827 // scale to screen position and size |
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828 trafo.concat(trafo.getScale(picrect)); |
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829 trafo.concat(trafo.getTranslation(picrect)); |
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830 return trafo; |
| 648 | 831 }; |
|
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832 |
|
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833 // returns function for load event of scaler img |
| 629 | 834 var scalerImgLoadedHandler = function (data) { |
| 835 var $img = data.$img; | |
| 626 | 836 return function () { |
| 620 | 837 console.debug("img loaded! this=", this, " data=", data); |
| 838 // create Transform from current area and picsize | |
| 668 | 839 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 840 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 620 | 841 // display marks |
| 626 | 842 renderMarks(data); |
| 620 | 843 //digilib.showArrows(); // show arrow overlays for zoom navigation |
|
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844 var $birdImg = data.$birdImg; |
|
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845 if ($birdImg) { |
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846 $birdImg.triggerHandler('load'); |
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847 }; |
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848 }; |
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849 }; |
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850 |
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851 // returns function for load event of bird's eye view img |
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852 var birdImgLoadedHandler = function (data) { |
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853 var $img = data.$birdImg; |
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854 return function () { |
|
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855 console.debug("birdimg loaded! this=", this, " data=", data); |
|
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856 // create Transform from current area and picsize |
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857 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 858 // display red indicator around zoomarea |
|
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859 renderbirdZoom(data); |
|
606
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860 }; |
|
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861 }; |
| 626 | 862 |
| 863 // place marks on the image | |
| 864 var renderMarks = function (data) { | |
| 640 | 865 var $elem = data.$elem; |
| 636 | 866 var marks = data.marks; |
| 642 | 867 // TODO: clear marks first(?) |
| 626 | 868 for (var i = 0; i < marks.length; i++) { |
| 869 var mark = marks[i]; | |
| 636 | 870 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 871 var mpos = data.imgTrafo.transform(mark); |
|
657
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872 console.debug("renderMarks: mpos=",mpos); |
| 626 | 873 // create mark |
| 874 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 875 var $mark = $(html); | |
| 876 $elem.append($mark); | |
| 647 | 877 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 878 } |
| 879 } | |
| 880 }; | |
| 648 | 881 |
|
670
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882 // show zoom area indicator on bird's eye view |
|
671
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883 var renderbirdZoom = function (data) { |
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884 var $birdZoom = data.$birdZoom; |
| 652 | 885 var zoomArea = data.zoomArea; |
| 886 var indRect = data.birdTrafo.transform(zoomArea); | |
|
663
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887 var coords = { |
|
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888 left : indRect.x-2, // acount for frame width |
|
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889 top : indRect.y-2, |
|
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890 width : indRect.width, |
|
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891 height: indRect.height |
|
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892 }; |
|
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893 var normalSize = isFullArea(zoomArea); |
|
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894 if (data.settings.interactionMode === 'fullscreen') { |
|
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895 // no animation for fullscreen |
|
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896 if (normalSize) return $birdZoom.hide(); |
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897 $birdZoom.width(coords.width); |
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898 $birdZoom.height(coords.height); |
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899 $birdZoom.offset(coords); |
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900 $birdZoom.show(); |
|
663
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901 return; |
|
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|
902 }; |
|
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903 // nice animation for embedded mode :-) |
|
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904 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
663
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905 return function() { |
|
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906 if (normalSize) $birdZoom.hide(); |
|
665
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907 }; |
|
663
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908 }; |
|
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909 var opts = { |
|
671
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910 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
663
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911 }; |
|
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912 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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913 $birdZoom.animate(coords, opts); |
|
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|
914 }; |
| 652 | 915 |
| 640 | 916 // zooms by the given factor |
| 636 | 917 var zoomBy = function(data, factor) { |
| 918 var area = data.zoomArea; | |
| 919 var newarea = area.copy(); | |
| 920 // scale | |
| 921 newarea.width /= factor; | |
| 922 newarea.height /= factor; | |
| 923 // and recenter | |
| 924 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 925 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 926 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 927 data.zoomArea = newarea; | |
|
637
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|
928 redisplay(data); |
| 636 | 929 }; |
| 930 | |
| 640 | 931 // add a mark where clicked |
| 932 var setMark = function (data) { | |
| 642 | 933 var $scaler = data.$scaler; |
| 640 | 934 // start event capturing |
| 642 | 935 $scaler.one('click.digilib', function (evt) { |
| 640 | 936 // event handler adding a new mark |
|
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|
937 var mpos = geom.position(evt); |
| 640 | 938 var pos = data.imgTrafo.invtransform(mpos); |
| 939 data.marks.push(pos); | |
| 940 redisplay(data); | |
| 642 | 941 return false; // do we even get here? |
| 640 | 942 }); |
| 943 }; | |
| 661 | 944 |
| 647 | 945 var zoomArea = function(data) { |
| 946 $elem = data.$elem; | |
| 947 $scaler = data.$scaler; | |
| 948 var pt1, pt2; | |
| 949 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 950 $elem.append($zoomDiv); | |
| 661 | 951 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 952 var picRect = geom.rectangle($scaler); |
| 953 // FIX ME: is there a way to query the border width from CSS info? | |
| 954 // rect.x -= 2; // account for overlay borders | |
| 955 // rect.y -= 2; | |
| 956 | |
| 957 var zoomStart = function (evt) { | |
| 958 pt1 = geom.position(evt); | |
| 959 // setup and show zoom div | |
| 960 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 961 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 962 $zoomDiv.width(0).height(0); |
| 647 | 963 $zoomDiv.show(); |
| 964 // register events | |
| 965 $elem.bind("mousemove.digilib", zoomMove); | |
| 966 $elem.bind("mouseup.digilib", zoomEnd); | |
| 967 return false; | |
| 968 }; | |
| 661 | 969 |
| 647 | 970 // mouseup handler: end moving |
| 971 var zoomEnd = function (evt) { | |
| 972 pt2 = geom.position(evt); | |
| 973 // assume a click and continue if the area is too small | |
| 974 var clickRect = geom.rectangle(pt1, pt2); | |
| 975 if (clickRect.getArea() <= 5) { | |
| 976 return false; | |
| 977 } | |
| 978 // hide zoom div | |
| 979 $zoomDiv.remove(); | |
| 980 // unregister events | |
| 981 $elem.unbind("mousemove.digilib", zoomMove); | |
| 982 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 983 // clip and transform | |
| 984 clickRect.clipTo(picRect); | |
| 985 var area = data.imgTrafo.invtransform(clickRect); | |
| 986 data.zoomArea = area; | |
| 987 // zoomed is always fit | |
| 988 data.settings.ws = 1; | |
| 989 redisplay(data); | |
| 990 return false; | |
| 991 }; | |
| 661 | 992 |
| 647 | 993 // mouse move handler |
| 994 var zoomMove = function (evt) { | |
| 995 pt2 = geom.position(evt); | |
| 996 var rect = geom.rectangle(pt1, pt2); | |
| 997 rect.clipTo(picRect); | |
| 998 // update zoom div | |
|
665
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|
999 rect.adjustDiv($zoomDiv); |
| 647 | 1000 return false; |
| 1001 }; | |
| 661 | 1002 |
| 647 | 1003 // bind start zoom handler |
| 1004 $scaler.one('mousedown.digilib', zoomStart); | |
| 1005 }; | |
| 640 | 1006 |
|
671
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|
1007 var birdZoom = function(data) { |
|
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|
1008 var $birdImg = data.$birdImg; |
|
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|
1009 var $birdZoom = data.$birdZoom; |
|
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|
1010 var startPos, newRect, birdImgRect, birdZoomRect; |
|
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|
1011 |
|
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|
1012 var birdZoomMove = function(evt) { |
|
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diff
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|
1013 // mousemove handler: drag |
|
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diff
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|
1014 var pos = geom.position(evt); |
|
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diff
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|
1015 var dx = pos.x - startPos.x; |
|
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|
1016 var dy = pos.y - startPos.y; |
|
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diff
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|
1017 // move birdZoom div, keeping size |
|
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|
1018 newRect = geom.rectangle( |
|
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diff
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|
1019 birdZoomRect.x + dx, |
|
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diff
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|
1020 birdZoomRect.y + dy, |
|
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|
1021 birdZoomRect.width, |
|
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|
1022 birdZoomRect.height |
|
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|
1023 ); |
|
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|
1024 // stay within birdimage |
|
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diff
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|
1025 newRect.stayInside(birdImgRect); |
|
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diff
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|
1026 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
|
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|
1027 // $birdZoom.show(); |
|
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|
1028 return false; |
|
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|
1029 }; |
|
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|
1030 |
|
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|
1031 var birdZoomEndDrag = function(evt) { |
|
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diff
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|
1032 // mouseup handler: reload page |
|
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|
1033 var settings = data.settings; |
|
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|
1034 $birdImg.unbind("mousemove.digilib", birdZoomMove); |
|
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|
1035 $birdImg.unbind("mouseup.digilib", birdZoomEndDrag); |
|
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1036 if (newRect == null) { // no movement happened |
|
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|
1037 startPos = birdZoomRect.getCenter(); |
|
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|
1038 birdZoomMove(evt); // set center to click position |
|
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|
1039 }; |
|
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|
1040 if (data.zoomArea) { |
| 672 | 1041 // should always be true |
| 1042 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1043 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1044 data.zoomArea.x = x; | |
| 1045 data.zoomArea.y = y; | |
|
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|
1046 }; |
|
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|
1047 settings.ws = 1; // zoomed is always fit |
|
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|
1048 redisplay(data); |
|
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|
1049 return false; |
|
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|
1050 }; |
|
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|
1051 |
|
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|
1052 var birdZoomStartDrag = function(evt) { |
|
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|
1053 // mousedown handler: start dragging bird zoom to a new position |
|
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|
1054 startPos = geom.position(evt); |
|
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|
1055 birdImgRect = geom.rectangle($birdImg); |
|
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|
1056 birdZoomRect = geom.rectangle($birdZoom); |
|
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|
1057 $birdImg.bind("mousemove.digilib", birdZoomMove); |
|
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|
1058 $birdImg.bind("mouseup.digilib", birdZoomEndDrag); |
|
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|
1059 return false; |
|
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|
1060 }; |
|
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|
1061 |
|
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|
1062 $birdImg.one("mousedown.digilib", birdZoomStartDrag); |
|
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|
1063 // $birdZoom.one("mousedown.digilib", birdZoomStartDrag); |
|
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|
1064 }; |
|
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|
1065 |
| 643 | 1066 // sets a key to a value (relative values with +/- if relative=true) |
| 1067 var setNumValue = function(settings, key, value) { | |
| 1068 if (isNumber(value)) return settings[key] = value; | |
| 1069 var sign = value.substring(0,1); | |
| 1070 if (sign === '+' || sign === '-') { | |
| 1071 if (settings[key] == null) { | |
|
644
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|
1072 // this isn't perfect but still... |
| 643 | 1073 settings[key] = 0; |
| 1074 } | |
| 1075 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1076 } else { | |
| 1077 settings[key] = value; | |
| 1078 } | |
| 1079 return settings[key]; | |
| 1080 }; | |
| 648 | 1081 |
| 1082 // auxiliary function (from old dllib.js) | |
| 652 | 1083 isFullArea = function(area) { |
| 1084 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1085 }; |
| 1086 | |
| 634 | 1087 // auxiliary function (from Douglas Crockford, A.10) |
| 1088 var isNumber = function isNumber(value) { | |
| 1089 return typeof value === 'number' && isFinite(value); | |
| 1090 }; | |
| 648 | 1091 |
| 624 | 1092 // auxiliary function to crop senseless precision |
| 1093 var cropFloat = function (x) { | |
| 630 | 1094 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1095 }; |
| 648 | 1096 |
| 598 | 1097 // hook plugin into jquery |
|
644
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|
1098 $.fn.digilib = function(action) { |
|
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|
1099 if (actions[action]) { |
|
bffc7d8c3641
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|
1100 // call action on this with the remaining arguments (inserting data as first argument) |
|
bffc7d8c3641
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|
1101 var $elem = $(this); |
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1102 var data = $elem.data('digilib'); |
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1103 var args = Array.prototype.slice.call(arguments, 1); |
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1104 args.unshift(data); |
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bffc7d8c3641
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1105 return actions[action].apply(this, args); |
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1106 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1107 // call init on this |
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1108 return actions.init.apply(this, arguments); |
| 598 | 1109 } else { |
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1110 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1111 } |
| 1112 }; | |
| 597 | 1113 |
| 1114 })(jQuery); |