Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 688:7ef3bc87ab19 jquery
cookie control for birdview, works for fullscreen
| author | hertzhaft |
|---|---|
| date | Thu, 27 Jan 2011 02:14:32 +0100 |
| parents | b13277a81027 |
| children | 317f7033e6ed dfdee83a0a32 |
| 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 = { | |
| 685 | 9 log : function(){}, |
| 10 debug : function(){}, | |
| 11 error : function(){} | |
| 12 }; | |
| 13 var customConsole = true; | |
| 14 }; | |
| 597 | 15 |
| 16 (function($) { | |
|
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17 var buttons = { |
| 603 | 18 reference : { |
| 682 | 19 onclick : "reference", |
| 603 | 20 tooltip : "get a reference URL", |
| 21 img : "reference.png" | |
| 22 }, | |
| 23 zoomin : { | |
| 636 | 24 onclick : ["zoomBy", 1.4], |
| 603 | 25 tooltip : "zoom in", |
| 26 img : "zoom-in.png" | |
| 27 }, | |
| 28 zoomout : { | |
| 636 | 29 onclick : ["zoomBy", 0.7], |
| 603 | 30 tooltip : "zoom out", |
| 31 img : "zoom-out.png" | |
| 32 }, | |
| 33 zoomarea : { | |
| 647 | 34 onclick : "zoomArea", |
| 603 | 35 tooltip : "zoom area", |
| 36 img : "zoom-area.png" | |
| 37 }, | |
| 38 zoomfull : { | |
| 643 | 39 onclick : "zoomFull", |
| 603 | 40 tooltip : "view the whole image", |
| 41 img : "zoom-full.png" | |
| 42 }, | |
| 43 pagewidth : { | |
| 643 | 44 onclick : ["zoomFull", "width"], |
| 603 | 45 tooltip : "page width", |
| 46 img : "pagewidth.png" | |
| 47 }, | |
| 48 back : { | |
| 616 | 49 onclick : ["gotoPage", "-1"], |
| 603 | 50 tooltip : "goto previous image", |
| 51 img : "back.png" | |
| 52 }, | |
| 53 fwd : { | |
| 616 | 54 onclick : ["gotoPage", "+1"], |
| 603 | 55 tooltip : "goto next image", |
| 56 img : "fwd.png" | |
| 57 }, | |
| 58 page : { | |
| 59 onclick : "javascript:gotoPageWin()", | |
| 60 tooltip : "specify image", | |
| 61 img : "page.png" | |
| 62 }, | |
| 63 bird : { | |
| 628 | 64 onclick : "showBirdDiv", |
| 603 | 65 tooltip : "show bird's eye view", |
| 66 img : "birds-eye.png" | |
| 67 }, | |
| 68 help : { | |
| 628 | 69 onclick : "showAboutDiv", |
| 603 | 70 tooltip : "about Digilib", |
| 71 img : "help.png" | |
| 72 }, | |
| 73 reset : { | |
| 681 | 74 onclick : "reset", |
| 603 | 75 tooltip : "reset image", |
| 76 img : "reset.png" | |
| 77 }, | |
| 78 mark : { | |
| 640 | 79 onclick : "setMark", |
| 603 | 80 tooltip : "set a mark", |
| 81 img : "mark.png" | |
| 82 }, | |
| 83 delmark : { | |
| 643 | 84 onclick : "removeMark", |
| 603 | 85 tooltip : "delete the last mark", |
| 86 img : "delmark.png" | |
| 87 }, | |
| 88 hmir : { | |
| 654 | 89 onclick : ["mirror", "h"], |
| 603 | 90 tooltip : "mirror horizontally", |
| 91 img : "mirror-horizontal.png" | |
| 92 }, | |
| 93 vmir : { | |
| 654 | 94 onclick : ["mirror", "v"], |
| 603 | 95 tooltip : "mirror vertically", |
| 96 img : "mirror-vertical.png" | |
| 97 }, | |
| 98 rot : { | |
| 656 | 99 onclick : "rotate", |
| 603 | 100 tooltip : "rotate image", |
| 101 img : "rotate.png" | |
| 102 }, | |
| 103 brgt : { | |
| 656 | 104 onclick : "brightness", |
| 603 | 105 tooltip : "set brightness", |
| 106 img : "brightness.png" | |
| 107 }, | |
| 108 cont : { | |
| 656 | 109 onclick : "contrast", |
| 603 | 110 tooltip : "set contrast", |
| 111 img : "contrast.png" | |
| 112 }, | |
| 113 rgb : { | |
| 114 onclick : "javascript:setParamWin('rgb', '...')", | |
| 115 tooltip : "set rgb values", | |
| 116 img : "rgb.png" | |
| 117 }, | |
| 118 quality : { | |
| 119 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
| 120 tooltip : "set image quality", | |
| 121 img : "quality.png" | |
| 122 }, | |
| 123 size : { | |
| 124 onclick : "javascript:toggleSizeMenu()", | |
| 125 tooltip : "set page size", | |
| 126 img : "size.png" | |
| 127 }, | |
| 128 calibrationx : { | |
| 129 onclick : "javascript:calibrate('x')", | |
| 130 tooltip : "calibrate screen x-ratio", | |
| 131 img : "calibration-x.png" | |
| 132 }, | |
| 133 scale : { | |
| 134 onclick : "javascript:toggleScaleMenu()", | |
| 135 tooltip : "change image scale", | |
| 136 img : "original-size.png" | |
| 137 }, | |
| 683 | 138 moreoptions : { |
| 139 onclick : ["morebuttons", "+1"], | |
| 140 tooltip : "more options", | |
| 141 img : "options.png" | |
| 142 }, | |
| 143 lessoptions : { | |
| 144 onclick : ["morebuttons", "-1"], | |
| 145 tooltip : "less options", | |
| 603 | 146 img : "options.png" |
| 147 }, | |
| 148 SEP : { | |
| 149 img : "sep.png" | |
| 150 } | |
| 151 }; | |
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152 |
| 598 | 153 var defaults = { |
| 609 | 154 // version of this script |
| 628 | 155 'version' : 'jquery.digilib.js 0.9', |
| 609 | 156 // logo url |
| 157 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 158 // homepage url (behind logo) |
| 159 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 160 // base URL to Scaler servlet |
| 645 | 161 'scalerBaseUrl' : null, |
| 603 | 162 // list of Scaler parameters |
| 620 | 163 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 164 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 165 // Scaler parameter defaults | |
| 636 | 166 'pn' : 1, |
| 620 | 167 'ww' : 1.0, |
| 168 'wh' : 1.0, | |
| 169 'wx' : 0.0, | |
| 170 'wy' : 0.0, | |
| 171 'ws' : 1.0, | |
| 636 | 172 'mo' : '', |
| 173 'rot' : 0, | |
| 174 'cont' : 0, | |
| 175 'brgt' : 0, | |
| 176 'rgbm' : '0/0/0', | |
| 177 'rgba' : '0/0/0', | |
| 178 'ddpi' : null, | |
| 179 'ddpix' : null, | |
| 180 'ddpiy' : null, | |
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181 // list of digilib parameters |
| 643 | 182 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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183 // digilib parameter defaults |
| 636 | 184 'mk' : '', |
| 643 | 185 'clop' : '', |
| 636 | 186 // mode of operation: |
| 187 // fullscreen = take parameters from page URL, keep state in page URL | |
| 188 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 189 'interactionMode' : 'fullscreen', |
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190 // buttons |
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191 'buttons' : buttons, |
| 661 | 192 // defaults for digilib buttons |
| 658 | 193 'buttonSettings' : { |
| 194 'fullscreen' : { | |
| 661 | 195 // path to button images (must end with a slash) |
| 658 | 196 'imagePath' : 'img/fullscreen/', |
| 683 | 197 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","moreoptions"], |
| 198 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","lessoptions"], | |
| 675 | 199 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 200 }, |
| 201 'embedded' : { | |
| 202 'imagePath' : 'img/embedded/16/', | |
| 686 | 203 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","SEP","help","reset","moreoptions"], |
| 204 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","SEP","lessoptions"], | |
| 675 | 205 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 206 } |
| 207 }, | |
| 645 | 208 // button groups |
| 609 | 209 // is birdView shown? |
| 210 'isBirdDivVisible' : false, | |
| 661 | 211 // dimensions of bird's eye div |
| 667 | 212 'birdDivWidth' : 200, |
| 213 'birdDivHeight' : 200, | |
| 661 | 214 // style of the zoom area indicator in the bird's eye div |
| 652 | 215 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 216 // style of zoom area "rubber band" |
| 217 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 218 // is the "about" window shown? |
| 219 'isAboutDivVisible' : false | |
| 220 | |
| 603 | 221 }; |
| 648 | 222 |
| 601 | 223 // affine geometry classes |
| 224 var geom = dlGeometry(); | |
| 648 | 225 |
| 636 | 226 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 227 |
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228 var actions = { |
| 661 | 229 // init: digilib initialization |
| 230 init : function(options) { | |
| 231 // settings for this digilib instance are merged from defaults and options | |
| 232 var settings = $.extend({}, defaults, options); | |
| 233 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 234 var queryParams = {}; | |
| 235 if (isFullscreen) { | |
| 236 queryParams = parseQueryParams(); | |
| 237 // check scalerBaseUrl | |
| 238 if (settings.scalerBaseUrl == null) { | |
| 239 // try the host this came from | |
| 240 var h = window.location.host; | |
| 241 if (window.location.host) { | |
| 242 var url = window.location.href; | |
| 243 // assume the page lives in [webapp]/jquery/ | |
| 244 var pos = url.indexOf('jquery/'); | |
| 245 if (pos > 0) { | |
| 246 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 247 } |
| 248 } | |
| 629 | 249 } |
| 661 | 250 } |
| 251 return this.each(function() { | |
| 252 var $elem = $(this); | |
| 253 var data = $elem.data('digilib'); | |
| 681 | 254 var params, elemSettings; |
| 661 | 255 // if the plugin hasn't been initialized yet |
| 256 if (!data) { | |
| 257 // merge query parameters | |
| 258 if (isFullscreen) { | |
| 681 | 259 params = queryParams; |
| 661 | 260 } else { |
| 681 | 261 params = parseImgParams($elem); |
| 262 }; | |
| 661 | 263 // store $(this) element in the settings |
| 681 | 264 elemSettings = $.extend({}, settings, params); |
| 661 | 265 data = { |
| 266 $elem : $elem, | |
| 267 settings : elemSettings, | |
| 681 | 268 queryParams : params |
| 661 | 269 }; |
| 270 // store in data element | |
| 271 $elem.data('digilib', data); | |
| 272 } | |
| 273 unpackParams(data); | |
| 675 | 274 // create HTML structure for scaler |
| 661 | 275 setupScalerDiv(data); |
| 675 | 276 // HTML for buttons (default is first button set) |
| 277 setupButtons(data, 0); | |
| 661 | 278 // bird's eye view creation |
| 279 if (elemSettings.isBirdDivVisible) { | |
| 631 | 280 setupBirdDiv(data); |
| 281 } | |
| 661 | 282 // about window creation - TODO: could be deferred? restrict to only one item? |
| 283 setupAboutDiv(data); | |
| 284 }); | |
| 285 }, | |
| 286 | |
| 287 // destroy: clean up digilib | |
| 288 destroy : function(data) { | |
| 289 return this.each(function(){ | |
| 290 var $elem = $(this); | |
| 291 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 292 data.digilib.remove(); | |
| 293 $elem.removeData('digilib'); | |
| 294 }); | |
| 295 }, | |
| 296 | |
| 297 // show or hide the 'about' window | |
| 298 showAboutDiv : function(data, show) { | |
| 299 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 300 }, | |
| 648 | 301 |
| 661 | 302 // event handler: toggles the visibility of the bird's eye window |
| 303 showBirdDiv : function (data, show) { | |
| 304 if (data.$birdDiv == null) { | |
| 305 // no bird div -> create | |
| 306 setupBirdDiv(data); | |
| 307 } | |
| 308 // TODO: keep bird view visible after reload (parameter, cookie?) | |
| 309 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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310 cookie(data, 'birdview', data.settings.isBirdDivVisible ? "1" : "0"); |
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311 data.$birdImg.triggerHandler('load'); |
| 661 | 312 }, |
| 313 | |
| 314 // goto given page nr (+/-: relative) | |
| 315 gotoPage : function (data, pageNr) { | |
| 316 var settings = data.settings; | |
| 317 var oldpn = settings.pn; | |
| 318 var pn = setNumValue(settings, "pn", pageNr); | |
| 319 if (pn == null) return false; // nothing happened | |
| 320 if (pn < 1) { | |
| 321 alert("no such page (page number too low)"); | |
| 322 settings.pn = oldpn; | |
| 323 return false; | |
| 324 } | |
| 325 if (settings.pt) { | |
| 326 if (pn > settings.pt) { | |
| 327 alert("no such page (page number too high)"); | |
| 616 | 328 settings.pn = oldpn; |
| 329 return false; | |
| 627 | 330 } |
| 661 | 331 } |
| 332 // reset mk and others(?) | |
| 333 data.marks = []; | |
| 334 data.zoomArea = MAX_ZOOMAREA; | |
| 335 // then reload | |
| 336 redisplay(data); | |
| 337 }, | |
| 647 | 338 |
| 661 | 339 // zoom by a given factor |
| 340 zoomBy : function (data, factor) { | |
| 341 zoomBy(data, factor); | |
| 342 }, | |
| 640 | 343 |
| 661 | 344 // zoom interactively |
| 345 zoomArea : function (data) { | |
| 346 zoomArea(data); | |
| 347 }, | |
| 643 | 348 |
| 661 | 349 // zoom out to full page |
| 350 zoomFull : function (data, mode) { | |
| 351 data.zoomArea = MAX_ZOOMAREA; | |
| 352 if (mode === 'width') { | |
| 353 data.dlOpts.fitwidth = 1; | |
| 354 delete data.dlOpts.fitheight; | |
| 355 } else if (mode === 'height') { | |
| 356 data.dlOpts.fitheight = 1; | |
| 357 delete data.dlOpts.fitwidth; | |
| 358 } else { | |
| 359 delete data.dlOpts.fitwidth; | |
| 360 delete data.dlOpts.fitheight; | |
| 361 } | |
| 362 redisplay(data); | |
| 363 }, | |
| 364 | |
| 365 // set a mark by clicking (or giving a position) | |
| 366 setMark : function (data, mpos) { | |
| 367 if (mpos == null) { | |
| 368 // interactive | |
| 369 setMark(data); | |
| 370 } else { | |
| 371 // use position | |
| 372 data.marks.push(pos); | |
| 656 | 373 redisplay(data); |
| 597 | 374 } |
| 661 | 375 }, |
| 376 | |
| 377 // remove the last mark | |
| 378 removeMark : function (data) { | |
| 379 data.marks.pop(); | |
| 380 redisplay(data); | |
| 381 }, | |
| 382 | |
| 383 // mirror the image | |
| 384 mirror : function (data, mode) { | |
| 385 var flags = data.scalerFlags; | |
| 386 if (mode === 'h') { | |
| 387 if (flags.hmir) { | |
| 388 delete flags.hmir; | |
| 389 } else { | |
| 390 flags.hmir = 1; | |
| 391 } | |
| 392 } else { | |
| 393 if (flags.vmir) { | |
| 394 delete flags.vmir; | |
| 395 } else { | |
| 396 flags.vmir = 1; | |
| 397 } | |
| 398 } | |
| 399 redisplay(data); | |
| 400 }, | |
| 643 | 401 |
| 661 | 402 // rotate the image |
| 403 rotate : function (data, angle) { | |
| 404 var rot = data.settings.rot; | |
| 405 if (angle == null) { | |
| 406 angle = window.prompt("Rotation angle:", rot); | |
| 407 } | |
| 408 data.settings.rot = angle; | |
| 409 redisplay(data); | |
| 410 }, | |
| 411 | |
| 412 // change brightness | |
| 413 brightness : function (data, factor) { | |
| 414 var brgt = data.settings.brgt; | |
| 415 if (factor == null) { | |
| 416 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 417 } | |
| 418 data.settings.brgt = factor; | |
| 419 redisplay(data); | |
| 420 }, | |
| 421 | |
| 422 // change contrast | |
| 423 contrast : function (data, factor) { | |
| 424 var cont = data.settings.cont; | |
| 425 if (factor == null) { | |
| 426 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 427 } | |
| 428 data.settings.cont = factor; | |
| 429 redisplay(data); | |
| 681 | 430 }, |
| 683 | 431 |
| 432 // display more (or less) button sets | |
| 433 morebuttons : function (data, more) { | |
| 434 if (more === '-1') { | |
| 435 // remove set | |
| 436 var setIdx = data.visibleButtonSets - 1; | |
| 437 var $lastSet = data.$buttonSets[setIdx]; | |
| 438 if ($lastSet == null) return; | |
| 439 var btnWidth = $lastSet.width(); | |
| 440 // hide last set | |
| 441 $lastSet.hide(); | |
| 442 // take remaining sets and move right | |
| 443 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 444 $otherSets.animate({left : '+='+btnWidth+'px'}); | |
| 445 data.visibleButtonSets -= 1; | |
| 446 } else { | |
| 447 // add set | |
| 448 var $oldSets = data.$elem.find('div.buttons:visible'); | |
| 449 var setIdx = data.visibleButtonSets; | |
| 450 var $newSet; | |
| 451 if (data.$buttonSets[setIdx]) { | |
| 452 // set exists | |
| 453 $newSet = data.$buttonSets[setIdx]; | |
| 454 } else { | |
| 455 $newSet = setupButtons(data, setIdx); | |
| 456 } | |
| 457 if ($newSet == null) return; | |
| 458 var btnWidth = $newSet.width(); | |
| 459 // move remaining sets left and show new set | |
| 460 $oldSets.animate({left : '-='+btnWidth+'px'}, | |
| 461 function () {$newSet.show();}); | |
| 462 data.visibleButtonSets += 1; | |
| 463 } | |
| 684 | 464 }, |
| 681 | 465 |
| 466 reset : function (data) { | |
| 467 var settings = data.settings; | |
| 468 var paramNames = settings.digilibParamNames; | |
| 469 var params = data.queryParams; | |
| 470 resetData(data); | |
| 471 // delete all digilib parameters | |
| 472 for (var i = 0; i < paramNames.length; i++) { | |
| 473 var paramName = paramNames[i]; | |
| 474 delete settings[paramName]; | |
| 475 }; | |
| 476 // fullscreen: restore only fn/pn parameters | |
| 477 if (settings.interactionMode === 'fullscreen') { | |
| 478 settings['fn'] = params.fn; | |
| 479 settings['pn'] = params.pn; | |
| 480 // embedded: restore original parameters | |
| 481 } else { | |
| 482 $.extend(settings, params); | |
| 483 }; | |
| 484 redisplay(data); | |
| 682 | 485 }, |
| 486 | |
| 487 reference : function (data) { | |
| 488 var settings = data.settings; | |
| 489 var url; | |
| 490 if (settings.interactionMode === 'fullscreen') { | |
| 491 url = getDigilibUrl(data); | |
| 492 } else { | |
| 493 url = getScalerUrl(data); | |
| 494 }; | |
| 495 window.prompt("URL reference to the current view", url); | |
| 661 | 496 } |
| 598 | 497 }; |
| 597 | 498 |
| 601 | 499 // returns parameters from page url |
| 600 | 500 var parseQueryParams = function() { |
| 629 | 501 return parseQueryString(window.location.search.slice(1)); |
| 502 }; | |
| 648 | 503 |
| 629 | 504 // returns parameters from embedded img-element |
| 600 | 505 var parseImgParams = function($elem) { |
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506 var src = $elem.find('img').first().attr('src'); |
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507 if (!src) { |
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508 return null; |
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509 } |
| 600 | 510 var pos = src.indexOf('?'); |
| 511 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 512 var scalerUrl = src.substring(0, pos); | |
| 620 | 513 var params = parseQueryString(query); |
| 514 params.scalerBaseUrl = scalerUrl; | |
| 515 return params; | |
| 629 | 516 }; |
| 600 | 517 |
| 601 | 518 // parses query parameter string into parameter object |
| 600 | 519 var parseQueryString = function(query) { |
| 520 var pairs = query.split("&"); | |
| 620 | 521 var params = {}; |
| 629 | 522 //var keys = []; |
| 600 | 523 for (var i = 0; i < pairs.length; i++) { |
| 524 var pair = pairs[i].split("="); | |
| 525 if (pair.length === 2) { | |
| 620 | 526 params[pair[0]] = pair[1]; |
| 629 | 527 //keys.push(pair[0]); |
| 627 | 528 } |
| 629 | 529 } |
| 620 | 530 return params; |
| 629 | 531 }; |
| 661 | 532 |
| 636 | 533 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 534 var getParamString = function (settings, keys, defaults) { | |
| 608 | 535 var paramString = ''; |
| 643 | 536 var nx = false; |
| 608 | 537 for (i = 0; i < keys.length; ++i) { |
| 538 var key = keys[i]; | |
| 656 | 539 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 540 // first param gets no '&' |
| 643 | 541 if (nx) { |
| 542 paramString += '&'; | |
| 543 } else { | |
| 544 nx = true; | |
| 545 } | |
| 608 | 546 // add parm=val |
| 547 paramString += key + '=' + settings[key]; | |
| 636 | 548 } |
| 608 | 549 } |
| 550 return paramString; | |
| 624 | 551 }; |
| 552 | |
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553 // set/get cookie for current image |
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554 var cookie = function (data, key, value) { |
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555 var settings = data.settings; |
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556 var fn = settings.fn; |
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557 var pn = settings.pn; |
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558 var name = key + ":fn=" + fn + ":pn=" + pn; |
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559 var result = (typeof value === 'undefined') ? $.cookie(name) : $.cookie(name, value, 7); |
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560 console.log("cookie=", name, " value=", $.cookie(name)); |
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561 return result; |
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562 }; |
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563 |
| 629 | 564 // returns URL and query string for Scaler |
| 565 var getScalerUrl = function (data) { | |
| 646 | 566 var settings = data.settings; |
| 645 | 567 if (settings.scalerBaseUrl == null) { |
| 568 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 569 } | |
| 658 | 570 packParams(data); |
| 629 | 571 var keys = settings.scalerParamNames; |
| 636 | 572 var queryString = getParamString(settings, keys, defaults); |
| 629 | 573 var url = settings.scalerBaseUrl + '?' + queryString; |
| 574 return url; | |
| 575 }; | |
| 576 | |
| 577 // returns URL and query string for current digilib | |
|
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578 var getDigilibUrl = function (data) { |
| 636 | 579 packParams(data); |
| 629 | 580 var settings = data.settings; |
|
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581 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 582 var url = window.location.toString(); |
| 583 var pos = url.indexOf('?'); | |
| 584 var baseUrl = url.substring(0, pos); | |
| 585 var newurl = baseUrl + '?' + queryString; | |
| 586 return newurl; | |
| 587 }; | |
| 588 | |
| 648 | 589 // processes some parameters into objects and stuff |
| 624 | 590 var unpackParams = function (data) { |
| 591 var settings = data.settings; | |
| 629 | 592 // zoom area |
| 624 | 593 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 594 data.zoomArea = zoomArea; |
| 629 | 595 // marks |
| 624 | 596 var marks = []; |
| 643 | 597 if (settings.mk) { |
| 598 var mk = settings.mk; | |
| 599 if (mk.indexOf(";") >= 0) { | |
| 600 var pa = mk.split(";"); // old format with ";" | |
| 601 } else { | |
| 602 var pa = mk.split(","); // new format | |
| 603 } | |
| 604 for (var i = 0; i < pa.length ; i++) { | |
| 605 var pos = pa[i].split("/"); | |
| 606 if (pos.length > 1) { | |
| 607 marks.push(geom.position(pos[0], pos[1])); | |
| 608 } | |
| 626 | 609 } |
| 624 | 610 } |
| 636 | 611 data.marks = marks; |
| 643 | 612 // mo (Scaler flags) |
| 613 var flags = {}; | |
| 614 if (settings.mo) { | |
| 615 var pa = settings.mo.split(","); | |
| 616 for (var i = 0; i < pa.length ; i++) { | |
| 617 flags[pa[i]] = pa[i]; | |
| 618 } | |
| 619 } | |
| 620 data.scalerFlags = flags; | |
| 621 // clop (digilib options) | |
| 622 var opts = {}; | |
| 623 if (settings.clop) { | |
| 624 var pa = settings.clop.split(","); | |
| 625 for (var i = 0; i < pa.length ; i++) { | |
| 626 opts[pa[i]] = pa[i]; | |
| 627 } | |
| 628 } | |
| 629 data.dlOpts = opts; | |
| 654 | 630 // birdview option |
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631 if (cookie(data, 'birdview') === '1') { |
| 654 | 632 settings.isBirdDivVisible = 1; |
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633 } |
| 648 | 634 }; |
| 635 | |
| 624 | 636 // put objects back into parameters |
| 637 var packParams = function (data) { | |
| 638 var settings = data.settings; | |
| 629 | 639 // zoom area |
| 636 | 640 if (data.zoomArea) { |
| 640 | 641 settings.wx = cropFloat(data.zoomArea.x); |
| 642 settings.wy = cropFloat(data.zoomArea.y); | |
| 643 settings.ww = cropFloat(data.zoomArea.width); | |
| 644 settings.wh = cropFloat(data.zoomArea.height); | |
| 624 | 645 } |
| 629 | 646 // marks |
| 636 | 647 if (data.marks) { |
| 643 | 648 settings.mk = ''; |
| 636 | 649 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 650 if (i) { |
| 651 settings.mk += ','; | |
| 652 } | |
| 653 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 624 | 654 } |
| 643 | 655 } |
| 656 // Scaler flags | |
| 657 if (data.scalerFlags) { | |
| 658 var mo = ''; | |
| 659 for (var f in data.scalerFlags) { | |
| 660 if (mo) { | |
| 661 mo += ','; | |
| 662 } | |
| 663 mo += f; | |
| 664 } | |
| 665 settings.mo = mo; | |
| 666 } | |
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667 // digilib option birdview |
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668 // cookie(data, 'birdview', settings.isBirdDivVisible ? "1" : "0"); |
| 681 | 669 |
| 643 | 670 // digilib options |
| 671 if (data.dlOpts) { | |
| 672 var clop = ''; | |
| 673 for (var o in data.dlOpts) { | |
| 674 if (clop) { | |
| 675 clop += ','; | |
| 676 } | |
| 677 clop += o; | |
| 678 } | |
| 679 settings.clop = clop; | |
| 624 | 680 } |
| 681 }; | |
| 648 | 682 |
| 681 | 683 // clear digilib data for reset |
| 684 var resetData = function (data) { | |
| 685 if (data.zoomArea) delete data.zoomArea; | |
| 686 if (data.marks) delete data.marks; | |
| 687 if (data.scalerFlags) delete data.scalerFlags; | |
| 688 if (data.dlOpts) delete data.dlOpts; | |
| 689 }; | |
| 690 | |
| 615 | 691 // (re)load the img from a new scaler URL |
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692 var redisplay = function (data) { |
| 629 | 693 var settings = data.settings; |
| 694 if (settings.interactionMode === 'fullscreen') { | |
| 695 // update location.href (browser URL) in fullscreen mode | |
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696 var url = getDigilibUrl(data); |
| 629 | 697 var history = window.history; |
| 698 if (typeof(history.pushState) === 'function') { | |
| 699 console.debug("we could modify history, but we don't..."); | |
| 700 } | |
| 701 window.location = url; | |
| 702 } else { | |
| 703 // embedded mode -- just change img src | |
| 704 var url = getScalerUrl(data); | |
| 705 data.$img.attr('src', url); | |
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706 // and update bird's eye view |
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707 //if (settings.isBirdDivVisible) { |
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708 // renderBirdZoom(data); |
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709 //} |
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710 }; |
| 615 | 711 }; |
| 712 | |
| 655 | 713 // returns maximum size for scaler img in fullscreen mode |
| 714 var getFullscreenImgSize = function($elem) { | |
| 715 var $win = $(window); | |
| 716 var winH = $win.height(); | |
| 717 var winW = $win.width(); | |
| 718 // TODO: account for borders? | |
| 719 return geom.size(winW, winH); | |
| 720 }; | |
| 721 | |
| 601 | 722 // creates HTML structure for digilib in elem |
| 620 | 723 var setupScalerDiv = function (data) { |
| 724 var settings = data.settings; | |
| 640 | 725 var $elem = data.$elem; |
| 679 | 726 var $img, scalerUrl; |
| 727 // fullscreen | |
| 601 | 728 if (settings.interactionMode === 'fullscreen') { |
| 602 | 729 var imgSize = getFullscreenImgSize($elem); |
| 643 | 730 // fitwidth/height omits destination height/width |
| 731 if (data.dlOpts['fitheight'] == null) { | |
| 732 settings.dw = imgSize.width; | |
| 679 | 733 }; |
| 643 | 734 if (data.dlOpts['fitwidth'] == null) { |
| 735 settings.dh = imgSize.height; | |
| 679 | 736 }; |
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737 $img = $('<img/>'); |
| 679 | 738 scalerUrl = getScalerUrl(data); |
| 739 // embedded mode -- try to keep img tag | |
| 602 | 740 } else { |
| 616 | 741 $img = $elem.find('img'); |
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742 if ($img.length > 0) { |
| 679 | 743 console.debug("img detach:", $img); |
| 744 scalerUrl = $img.attr('src'); | |
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745 $img.detach(); |
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746 } else { |
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747 $img = $('<img/>'); |
| 679 | 748 scalerUrl = getScalerUrl(data); |
| 749 }; | |
| 601 | 750 } |
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751 // create new html |
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752 $elem.empty(); // TODO: should we keep stuff for customization? |
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753 var $scaler = $('<div class="scaler"/>'); |
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754 $elem.append($scaler); |
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755 $scaler.append($img); |
| 615 | 756 $img.addClass('pic'); |
| 642 | 757 data.$scaler = $scaler; |
| 629 | 758 data.$img = $img; |
| 680 | 759 // setup image load handler before setting the src attribute (IE bug) |
| 760 $img.load(scalerImgLoadedHandler(data)); | |
| 761 $img.attr('src', scalerUrl); | |
| 601 | 762 }; |
| 608 | 763 |
| 603 | 764 // creates HTML structure for buttons in elem |
| 675 | 765 var setupButtons = function (data, buttonSetIdx) { |
| 640 | 766 var $elem = data.$elem; |
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767 var settings = data.settings; |
| 658 | 768 var mode = settings.interactionMode; |
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769 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 770 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 771 if (buttonGroup == null) { |
| 772 // no buttons here | |
| 773 return; | |
| 774 } | |
| 775 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 776 var buttonNames = buttonSettings[buttonGroup]; |
| 777 for (var i = 0; i < buttonNames.length; i++) { | |
| 778 var buttonName = buttonNames[i]; | |
| 779 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 780 // construct the button html |
| 781 var $button = $('<div class="button"></div>'); | |
| 782 var $a = $('<a/>'); | |
| 783 var $img = $('<img class="button"/>'); | |
| 784 $buttonsDiv.append($button); | |
| 785 $button.append($a); | |
| 786 $a.append($img); | |
| 787 // add attributes and bindings | |
| 788 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 789 $button.addClass('button-' + buttonName); |
| 658 | 790 // create handler for the buttons |
| 791 $a.bind('click.digilib', (function () { | |
| 792 // we create a new closure to capture the value of action | |
| 793 var action = buttonConfig.onclick; | |
| 794 if ($.isArray(action)) { | |
| 795 // the handler function calls digilib with action and parameters | |
| 796 return function (evt) { | |
| 797 console.debug('click action=', action, ' evt=', evt); | |
| 798 $elem.digilib.apply($elem, action); | |
| 799 return false; | |
| 800 }; | |
| 801 } else { | |
| 802 // the handler function calls digilib with action | |
| 803 return function (evt) { | |
| 804 console.debug('click action=', action, ' evt=', evt); | |
| 805 $elem.digilib(action); | |
| 806 return false; | |
| 807 }; | |
| 808 } | |
| 809 })()); | |
| 810 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 811 } |
| 655 | 812 // make buttons div scroll if too large for window |
| 813 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 814 $buttonsDiv.css('position', 'absolute'); | |
| 815 } | |
| 675 | 816 if (data.$buttonSets == null) { |
| 683 | 817 // show first button set |
| 818 $elem.append($buttonsDiv); | |
| 675 | 819 data.$buttonSets = [$buttonsDiv]; |
| 820 data.visibleButtonSets = 1; | |
| 821 } else { | |
| 683 | 822 // hide later button sets |
| 823 $buttonsDiv.hide(); | |
| 824 $elem.append($buttonsDiv); | |
| 675 | 825 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 826 } | |
| 605 | 827 return $buttonsDiv; |
| 603 | 828 }; |
| 608 | 829 |
| 830 // creates HTML structure for the bird's eye view in elem | |
| 631 | 831 var setupBirdDiv = function (data) { |
| 640 | 832 var $elem = data.$elem; |
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833 var settings = data.settings; |
| 608 | 834 // use only the relevant parameters |
| 835 var keys = ['fn','pn','dw','dh']; | |
| 667 | 836 var birdDivOptions = { |
| 837 dw : settings.birdDivWidth, | |
| 838 dh : settings.birdDivHeight | |
| 839 }; | |
| 840 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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841 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 842 // the bird's eye div |
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843 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 844 // the detail indicator frame |
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845 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 846 // the small image |
| 847 var $birdImg = $('<img class="birdimg"/>'); | |
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848 $elem.append($birdDiv); |
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849 $birdDiv.append($birdZoom); |
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850 $birdDiv.append($birdImg); |
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851 $birdZoom.css(data.settings.birdIndicatorStyle); |
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852 data.$birdDiv = $birdDiv; |
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853 data.$birdZoom = $birdZoom; |
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854 data.$birdImg = $birdImg; |
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855 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 856 $birdImg.attr('src', birdUrl); |
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857 if (data.settings.isBirdDivVisible) { |
| 680 | 858 $birdDiv.show(); |
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859 }; |
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860 birdZoom(data); |
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861 }; |
| 608 | 862 |
| 618 | 863 // creates HTML structure for the about view in elem |
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864 var setupAboutDiv = function (data) { |
| 640 | 865 var $elem = data.$elem; |
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866 var settings = data.settings; |
| 618 | 867 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 868 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 869 var $link = $('<a/>'); | |
| 870 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 871 var $content = $('<p/>'); | |
| 872 $elem.append($aboutDiv); | |
| 873 $aboutDiv.append($header); | |
| 874 $aboutDiv.append($link); | |
| 875 $aboutDiv.append($content); | |
| 876 $link.append($logo); | |
| 877 $logo.attr('src', settings.logoUrl); | |
| 628 | 878 $link.attr('href', settings.homeUrl); |
| 609 | 879 $content.text('Version: ' + settings.version); |
| 628 | 880 // click hides |
| 642 | 881 $aboutDiv.bind('click.digilib', function () { |
| 639 | 882 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 883 return false; |
| 884 }); | |
| 628 | 885 data.$aboutDiv = $aboutDiv; |
| 627 | 886 }; |
| 887 | |
| 628 | 888 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 889 var showDiv = function (isVisible, $div, show) { | |
| 638 | 890 if (show == null) { |
| 628 | 891 // toggle visibility |
| 892 isVisible = !isVisible; | |
| 893 } else { | |
| 894 // set visibility | |
| 895 isVisible = show; | |
| 896 } | |
| 897 if (isVisible) { | |
| 898 $div.fadeIn(); | |
| 899 } else { | |
| 900 $div.fadeOut(); | |
| 901 } | |
| 902 return isVisible; | |
| 627 | 903 }; |
| 609 | 904 |
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905 // create Transform from area and $img |
| 668 | 906 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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907 var picrect = geom.rectangle($img); |
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908 var trafo = geom.transform(); |
| 668 | 909 // move zoom area offset to center |
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910 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 911 // scale zoom area size to [1,1] |
|
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912 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 913 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 914 if (rot || hmir || vmir) { | |
| 915 // move [0.5,0.5] to center | |
| 916 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 917 if (hmir) { | |
| 918 // mirror about center | |
| 919 trafo.concat(trafo.getMirror('y')); | |
| 920 } | |
| 921 if (vmir) { | |
| 922 // mirror about center | |
| 923 trafo.concat(trafo.getMirror('x')); | |
| 924 } | |
| 925 if (rot) { | |
| 926 // rotate around center | |
| 927 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
| 928 } | |
| 929 // move back | |
| 930 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
|
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931 } |
|
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932 // scale to screen position and size |
|
651
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933 trafo.concat(trafo.getScale(picrect)); |
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934 trafo.concat(trafo.getTranslation(picrect)); |
|
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935 return trafo; |
| 648 | 936 }; |
|
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937 |
|
606
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938 // returns function for load event of scaler img |
| 629 | 939 var scalerImgLoadedHandler = function (data) { |
| 940 var $img = data.$img; | |
| 626 | 941 return function () { |
| 620 | 942 console.debug("img loaded! this=", this, " data=", data); |
| 943 // create Transform from current area and picsize | |
| 668 | 944 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 945 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 946 console.debug("imgTrafo=", data.imgTrafo); |
| 620 | 947 // display marks |
| 626 | 948 renderMarks(data); |
|
688
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949 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
|
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950 // TODO: the birdview should adapt to mirror or rotation? |
|
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951 var $birdImg = data.$birdImg; |
|
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952 if ($birdImg) { |
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953 $birdImg.triggerHandler('load'); |
|
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954 }; |
|
651
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955 }; |
|
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956 }; |
|
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957 |
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958 // returns function for load event of bird's eye view img |
|
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959 var birdImgLoadedHandler = function (data) { |
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960 var $img = data.$birdImg; |
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961 return function () { |
|
670
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962 console.debug("birdimg loaded! this=", this, " data=", data); |
|
651
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963 // create Transform from current area and picsize |
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964 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 965 // display red indicator around zoomarea |
|
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966 renderbirdZoom(data); |
|
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967 }; |
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968 }; |
| 626 | 969 |
| 970 // place marks on the image | |
| 971 var renderMarks = function (data) { | |
| 640 | 972 var $elem = data.$elem; |
| 636 | 973 var marks = data.marks; |
| 642 | 974 // TODO: clear marks first(?) |
| 626 | 975 for (var i = 0; i < marks.length; i++) { |
| 976 var mark = marks[i]; | |
| 636 | 977 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 978 var mpos = data.imgTrafo.transform(mark); |
|
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979 console.debug("renderMarks: mpos=",mpos); |
| 626 | 980 // create mark |
| 981 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 982 var $mark = $(html); | |
| 983 $elem.append($mark); | |
| 647 | 984 $mark.offset({left : mpos.x, top : mpos.y}); |
| 626 | 985 } |
| 986 } | |
| 987 }; | |
| 648 | 988 |
|
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989 // show zoom area indicator on bird's eye view |
|
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990 var renderbirdZoom = function (data) { |
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991 var $birdZoom = data.$birdZoom; |
| 652 | 992 var zoomArea = data.zoomArea; |
| 993 var indRect = data.birdTrafo.transform(zoomArea); | |
|
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994 var coords = { |
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995 left : indRect.x-2, // acount for frame width |
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996 top : indRect.y-2, |
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997 width : indRect.width, |
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998 height: indRect.height |
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999 }; |
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1000 var normalSize = isFullArea(zoomArea); |
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1001 if (data.settings.interactionMode === 'fullscreen') { |
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1002 // no animation for fullscreen |
|
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1003 if (normalSize) return $birdZoom.hide(); |
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1004 $birdZoom.width(coords.width); |
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1005 $birdZoom.height(coords.height); |
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1006 $birdZoom.offset(coords); |
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1007 $birdZoom.show(); |
|
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1008 return; |
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1009 }; |
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1010 // nice animation for embedded mode :-) |
|
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1011 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
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1012 return function() { |
|
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1013 if (normalSize) $birdZoom.hide(); |
|
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1014 }; |
|
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1015 }; |
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1016 var opts = { |
|
671
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1017 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
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1018 }; |
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1019 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1020 $birdZoom.animate(coords, opts); |
|
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1021 }; |
| 652 | 1022 |
| 640 | 1023 // zooms by the given factor |
| 636 | 1024 var zoomBy = function(data, factor) { |
| 1025 var area = data.zoomArea; | |
| 1026 var newarea = area.copy(); | |
| 1027 // scale | |
| 1028 newarea.width /= factor; | |
| 1029 newarea.height /= factor; | |
| 1030 // and recenter | |
| 1031 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1032 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 1033 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 1034 data.zoomArea = newarea; | |
|
637
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|
1035 redisplay(data); |
| 636 | 1036 }; |
| 1037 | |
| 640 | 1038 // add a mark where clicked |
| 1039 var setMark = function (data) { | |
| 642 | 1040 var $scaler = data.$scaler; |
| 640 | 1041 // start event capturing |
| 642 | 1042 $scaler.one('click.digilib', function (evt) { |
| 640 | 1043 // event handler adding a new mark |
|
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|
1044 var mpos = geom.position(evt); |
| 640 | 1045 var pos = data.imgTrafo.invtransform(mpos); |
| 1046 data.marks.push(pos); | |
| 1047 redisplay(data); | |
| 642 | 1048 return false; // do we even get here? |
| 640 | 1049 }); |
| 1050 }; | |
| 661 | 1051 |
| 647 | 1052 var zoomArea = function(data) { |
| 1053 $elem = data.$elem; | |
| 1054 $scaler = data.$scaler; | |
| 1055 var pt1, pt2; | |
| 1056 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1057 $elem.append($zoomDiv); | |
| 661 | 1058 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1059 var picRect = geom.rectangle($scaler); |
| 1060 // FIX ME: is there a way to query the border width from CSS info? | |
| 1061 // rect.x -= 2; // account for overlay borders | |
| 1062 // rect.y -= 2; | |
| 1063 | |
| 1064 var zoomStart = function (evt) { | |
| 1065 pt1 = geom.position(evt); | |
| 1066 // setup and show zoom div | |
| 1067 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1068 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 1069 $zoomDiv.width(0).height(0); |
| 647 | 1070 $zoomDiv.show(); |
| 1071 // register events | |
| 1072 $elem.bind("mousemove.digilib", zoomMove); | |
| 1073 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1074 return false; | |
| 1075 }; | |
| 661 | 1076 |
| 647 | 1077 // mouseup handler: end moving |
| 1078 var zoomEnd = function (evt) { | |
| 1079 pt2 = geom.position(evt); | |
| 1080 // assume a click and continue if the area is too small | |
| 1081 var clickRect = geom.rectangle(pt1, pt2); | |
| 1082 if (clickRect.getArea() <= 5) { | |
| 1083 return false; | |
| 1084 } | |
| 1085 // hide zoom div | |
| 1086 $zoomDiv.remove(); | |
| 1087 // unregister events | |
| 1088 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1089 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1090 // clip and transform | |
| 1091 clickRect.clipTo(picRect); | |
| 1092 var area = data.imgTrafo.invtransform(clickRect); | |
| 1093 data.zoomArea = area; | |
| 1094 // zoomed is always fit | |
| 1095 data.settings.ws = 1; | |
| 1096 redisplay(data); | |
| 1097 return false; | |
| 1098 }; | |
| 661 | 1099 |
| 647 | 1100 // mouse move handler |
| 1101 var zoomMove = function (evt) { | |
| 1102 pt2 = geom.position(evt); | |
| 1103 var rect = geom.rectangle(pt1, pt2); | |
| 1104 rect.clipTo(picRect); | |
| 1105 // update zoom div | |
|
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|
1106 rect.adjustDiv($zoomDiv); |
| 647 | 1107 return false; |
| 1108 }; | |
| 661 | 1109 |
| 647 | 1110 // bind start zoom handler |
| 1111 $scaler.one('mousedown.digilib', zoomStart); | |
| 1112 }; | |
| 640 | 1113 |
|
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1114 var birdZoom = function(data) { |
|
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1115 var $birdImg = data.$birdImg; |
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1116 var $birdZoom = data.$birdZoom; |
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1117 var startPos, newRect, birdImgRect, birdZoomRect; |
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1118 |
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1119 var birdZoomMove = function(evt) { |
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1120 // mousemove handler: drag |
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1121 var pos = geom.position(evt); |
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1122 var dx = pos.x - startPos.x; |
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1123 var dy = pos.y - startPos.y; |
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|
1124 // move birdZoom div, keeping size |
|
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1125 newRect = geom.rectangle( |
|
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1126 birdZoomRect.x + dx, |
|
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1127 birdZoomRect.y + dy, |
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1128 birdZoomRect.width, |
|
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1129 birdZoomRect.height |
|
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|
1130 ); |
|
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1131 // stay within birdimage |
|
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1132 newRect.stayInside(birdImgRect); |
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1133 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1134 // $birdZoom.show(); |
|
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1135 return false; |
|
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1136 }; |
|
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1137 |
|
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1138 var birdZoomEndDrag = function(evt) { |
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1139 // mouseup handler: reload page |
|
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|
1140 var settings = data.settings; |
| 673 | 1141 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1142 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1143 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1144 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
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1145 if (newRect == null) { // no movement happened |
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1146 startPos = birdZoomRect.getCenter(); |
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1147 birdZoomMove(evt); // set center to click position |
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1148 }; |
|
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1149 if (data.zoomArea) { |
| 672 | 1150 // should always be true |
| 1151 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1152 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1153 data.zoomArea.x = x; | |
| 1154 data.zoomArea.y = y; | |
|
671
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1155 }; |
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1156 settings.ws = 1; // zoomed is always fit |
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1157 redisplay(data); |
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1158 return false; |
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1159 }; |
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1160 |
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1161 var birdZoomStartDrag = function(evt) { |
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1162 // mousedown handler: start dragging bird zoom to a new position |
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1163 startPos = geom.position(evt); |
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1164 birdImgRect = geom.rectangle($birdImg); |
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1165 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1166 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1167 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1168 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1169 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
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1170 return false; |
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1171 }; |
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1172 |
| 674 | 1173 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1174 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
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1175 }; |
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1176 |
| 643 | 1177 // sets a key to a value (relative values with +/- if relative=true) |
| 1178 var setNumValue = function(settings, key, value) { | |
| 1179 if (isNumber(value)) return settings[key] = value; | |
| 1180 var sign = value.substring(0,1); | |
| 1181 if (sign === '+' || sign === '-') { | |
| 1182 if (settings[key] == null) { | |
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1183 // this isn't perfect but still... |
| 643 | 1184 settings[key] = 0; |
| 1185 } | |
| 1186 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 1187 } else { | |
| 1188 settings[key] = value; | |
| 1189 } | |
| 1190 return settings[key]; | |
| 1191 }; | |
| 648 | 1192 |
| 1193 // auxiliary function (from old dllib.js) | |
| 652 | 1194 isFullArea = function(area) { |
| 1195 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1196 }; |
| 1197 | |
| 634 | 1198 // auxiliary function (from Douglas Crockford, A.10) |
| 1199 var isNumber = function isNumber(value) { | |
| 1200 return typeof value === 'number' && isFinite(value); | |
| 1201 }; | |
| 648 | 1202 |
| 624 | 1203 // auxiliary function to crop senseless precision |
| 1204 var cropFloat = function (x) { | |
| 630 | 1205 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1206 }; |
| 648 | 1207 |
| 685 | 1208 // fallback for console.log calls |
| 1209 if (customConsole) { | |
| 1210 var logFunction = function(type) { | |
| 1211 return function(){ | |
| 1212 var $debug = $('#debug'); // debug div | |
| 1213 if (!$debug) return; | |
| 1214 var args = Array.prototype.slice.call(arguments); | |
| 1215 var argtext = args.join(' '); | |
| 1216 var $logDiv = $('<div/>'); | |
| 1217 $logDiv.addClass(type); | |
| 1218 $logDiv.text(argtext); | |
| 1219 $debug.append($logDiv); | |
| 1220 }; | |
| 1221 }; | |
| 1222 console.log = logFunction('_log'); | |
| 1223 console.debug = logFunction('_debug'); | |
| 1224 console.error = logFunction('_error'); | |
| 1225 }; | |
| 1226 | |
| 598 | 1227 // hook plugin into jquery |
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1228 $.fn.digilib = function(action) { |
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1229 if (actions[action]) { |
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1230 // call action on this with the remaining arguments (inserting data as first argument) |
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1231 var $elem = $(this); |
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1232 var data = $elem.data('digilib'); |
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1233 var args = Array.prototype.slice.call(arguments, 1); |
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1234 args.unshift(data); |
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1235 return actions[action].apply(this, args); |
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1236 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1237 // call init on this |
|
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1238 return actions.init.apply(this, arguments); |
| 598 | 1239 } else { |
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1240 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 598 | 1241 } |
| 1242 }; | |
| 685 | 1243 |
| 597 | 1244 })(jQuery); |