Mercurial > hg > digilib
annotate client/digitallibrary/jquery/jquery.digilib.js @ 709:661c13bfdcde jquery
goto page works now (with window.prompt)
| author | robcast |
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| date | Sun, 30 Jan 2011 18:52:19 +0100 |
| parents | fc54b455f7f8 |
| children | be202d0f4ac1 |
| rev | line source |
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1 /* Copyright (c) 2011 Martin Raspe, Robert Casties |
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2 |
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3 This program is free software: you can redistribute it and/or modify |
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4 it under the terms of the GNU Lesser General Public License as published by |
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5 the Free Software Foundation, either version 2 of the License, or |
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6 (at your option) any later version. |
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7 |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU Lesser General Public License for more details. |
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12 |
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13 You should have received a copy of the GNU Lesser General Public License |
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. |
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15 |
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16 Authors: |
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17 Martin Raspe, Robert Casties, 11.1.2011 |
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18 */ |
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19 |
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20 /** |
| 597 | 21 * digilib jQuery plugin |
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22 * |
| 597 | 23 */ |
| 648 | 24 |
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25 /*jslint browser: true, debug: true, forin: true */ |
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26 |
| 629 | 27 // fallback for console.log calls |
| 28 if (typeof(console) === 'undefined') { | |
| 29 var console = { | |
| 685 | 30 log : function(){}, |
| 31 debug : function(){}, | |
| 32 error : function(){} | |
| 33 }; | |
| 34 var customConsole = true; | |
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35 } |
| 597 | 36 |
| 37 (function($) { | |
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38 var buttons = { |
| 603 | 39 reference : { |
| 682 | 40 onclick : "reference", |
| 603 | 41 tooltip : "get a reference URL", |
| 42 img : "reference.png" | |
| 43 }, | |
| 44 zoomin : { | |
| 636 | 45 onclick : ["zoomBy", 1.4], |
| 603 | 46 tooltip : "zoom in", |
| 47 img : "zoom-in.png" | |
| 48 }, | |
| 49 zoomout : { | |
| 636 | 50 onclick : ["zoomBy", 0.7], |
| 603 | 51 tooltip : "zoom out", |
| 52 img : "zoom-out.png" | |
| 53 }, | |
| 54 zoomarea : { | |
| 647 | 55 onclick : "zoomArea", |
| 603 | 56 tooltip : "zoom area", |
| 57 img : "zoom-area.png" | |
| 58 }, | |
| 59 zoomfull : { | |
| 643 | 60 onclick : "zoomFull", |
| 603 | 61 tooltip : "view the whole image", |
| 62 img : "zoom-full.png" | |
| 63 }, | |
| 64 pagewidth : { | |
| 643 | 65 onclick : ["zoomFull", "width"], |
| 603 | 66 tooltip : "page width", |
| 67 img : "pagewidth.png" | |
| 68 }, | |
| 69 back : { | |
| 616 | 70 onclick : ["gotoPage", "-1"], |
| 603 | 71 tooltip : "goto previous image", |
| 72 img : "back.png" | |
| 73 }, | |
| 74 fwd : { | |
| 616 | 75 onclick : ["gotoPage", "+1"], |
| 603 | 76 tooltip : "goto next image", |
| 77 img : "fwd.png" | |
| 78 }, | |
| 79 page : { | |
| 709 | 80 onclick : "gotoPage", |
| 81 tooltip : "goto image number", | |
| 603 | 82 img : "page.png" |
| 83 }, | |
| 84 bird : { | |
| 628 | 85 onclick : "showBirdDiv", |
| 603 | 86 tooltip : "show bird's eye view", |
| 87 img : "birds-eye.png" | |
| 88 }, | |
| 89 help : { | |
| 628 | 90 onclick : "showAboutDiv", |
| 603 | 91 tooltip : "about Digilib", |
| 92 img : "help.png" | |
| 93 }, | |
| 94 reset : { | |
| 681 | 95 onclick : "reset", |
| 603 | 96 tooltip : "reset image", |
| 97 img : "reset.png" | |
| 98 }, | |
| 99 mark : { | |
| 640 | 100 onclick : "setMark", |
| 603 | 101 tooltip : "set a mark", |
| 102 img : "mark.png" | |
| 103 }, | |
| 104 delmark : { | |
| 643 | 105 onclick : "removeMark", |
| 603 | 106 tooltip : "delete the last mark", |
| 107 img : "delmark.png" | |
| 108 }, | |
| 109 hmir : { | |
| 654 | 110 onclick : ["mirror", "h"], |
| 603 | 111 tooltip : "mirror horizontally", |
| 112 img : "mirror-horizontal.png" | |
| 113 }, | |
| 114 vmir : { | |
| 654 | 115 onclick : ["mirror", "v"], |
| 603 | 116 tooltip : "mirror vertically", |
| 117 img : "mirror-vertical.png" | |
| 118 }, | |
| 119 rot : { | |
| 656 | 120 onclick : "rotate", |
| 603 | 121 tooltip : "rotate image", |
| 122 img : "rotate.png" | |
| 123 }, | |
| 124 brgt : { | |
| 656 | 125 onclick : "brightness", |
| 603 | 126 tooltip : "set brightness", |
| 127 img : "brightness.png" | |
| 128 }, | |
| 129 cont : { | |
| 656 | 130 onclick : "contrast", |
| 603 | 131 tooltip : "set contrast", |
| 132 img : "contrast.png" | |
| 133 }, | |
| 134 rgb : { | |
| 135 onclick : "javascript:setParamWin('rgb', '...')", | |
| 136 tooltip : "set rgb values", | |
| 137 img : "rgb.png" | |
| 138 }, | |
| 139 quality : { | |
| 696 | 140 onclick : "setquality", |
| 603 | 141 tooltip : "set image quality", |
| 142 img : "quality.png" | |
| 143 }, | |
| 144 size : { | |
| 145 onclick : "javascript:toggleSizeMenu()", | |
| 146 tooltip : "set page size", | |
| 147 img : "size.png" | |
| 148 }, | |
| 149 calibrationx : { | |
| 150 onclick : "javascript:calibrate('x')", | |
| 151 tooltip : "calibrate screen x-ratio", | |
| 152 img : "calibration-x.png" | |
| 153 }, | |
| 154 scale : { | |
| 155 onclick : "javascript:toggleScaleMenu()", | |
| 156 tooltip : "change image scale", | |
| 157 img : "original-size.png" | |
| 158 }, | |
| 692 | 159 toggleoptions : { |
| 160 onclick : "morebuttons", | |
| 161 tooltip : "more options", | |
| 162 img : "options.png" | |
| 163 }, | |
| 683 | 164 moreoptions : { |
| 165 onclick : ["morebuttons", "+1"], | |
| 166 tooltip : "more options", | |
| 167 img : "options.png" | |
| 168 }, | |
| 169 lessoptions : { | |
| 170 onclick : ["morebuttons", "-1"], | |
| 171 tooltip : "less options", | |
| 603 | 172 img : "options.png" |
| 173 }, | |
| 174 SEP : { | |
| 175 img : "sep.png" | |
| 176 } | |
| 177 }; | |
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178 |
| 598 | 179 var defaults = { |
| 609 | 180 // version of this script |
| 628 | 181 'version' : 'jquery.digilib.js 0.9', |
| 609 | 182 // logo url |
| 183 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 628 | 184 // homepage url (behind logo) |
| 185 'homeUrl' : 'http://digilib.berlios.de', | |
| 603 | 186 // base URL to Scaler servlet |
| 645 | 187 'scalerBaseUrl' : null, |
| 603 | 188 // list of Scaler parameters |
| 620 | 189 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 190 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 191 // Scaler parameter defaults | |
| 636 | 192 'pn' : 1, |
| 620 | 193 'ww' : 1.0, |
| 194 'wh' : 1.0, | |
| 195 'wx' : 0.0, | |
| 196 'wy' : 0.0, | |
| 197 'ws' : 1.0, | |
| 636 | 198 'mo' : '', |
| 199 'rot' : 0, | |
| 200 'cont' : 0, | |
| 201 'brgt' : 0, | |
| 202 'rgbm' : '0/0/0', | |
| 203 'rgba' : '0/0/0', | |
| 204 'ddpi' : null, | |
| 205 'ddpix' : null, | |
| 206 'ddpiy' : null, | |
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207 // list of digilib parameters |
| 643 | 208 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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209 // digilib parameter defaults |
| 636 | 210 'mk' : '', |
| 643 | 211 'clop' : '', |
| 636 | 212 // mode of operation: |
| 213 // fullscreen = take parameters from page URL, keep state in page URL | |
| 214 // embedded = take parameters from Javascript options, keep state inside object | |
| 603 | 215 'interactionMode' : 'fullscreen', |
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216 // buttons |
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217 'buttons' : buttons, |
| 661 | 218 // defaults for digilib buttons |
| 658 | 219 'buttonSettings' : { |
| 220 'fullscreen' : { | |
| 661 | 221 // path to button images (must end with a slash) |
| 658 | 222 'imagePath' : 'img/fullscreen/', |
| 692 | 223 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
| 224 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","toggleoptions"], | |
| 675 | 225 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 226 }, |
| 227 'embedded' : { | |
| 228 'imagePath' : 'img/embedded/16/', | |
| 692 | 229 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","back","fwd","page","bird","SEP","help","reset","toggleoptions"], |
| 230 'specialSet' : ["hmir","vmir","rot","brgt","cont","rgb","quality","size","SEP","toggleoptions"], | |
| 675 | 231 'buttonSets' : ['standardSet', 'specialSet'] |
| 658 | 232 } |
| 690 | 233 }, |
| 234 // number of visible button groups | |
| 235 'visibleButtonSets' : 1, | |
| 609 | 236 // is birdView shown? |
| 237 'isBirdDivVisible' : false, | |
| 661 | 238 // dimensions of bird's eye div |
| 667 | 239 'birdDivWidth' : 200, |
| 240 'birdDivHeight' : 200, | |
| 661 | 241 // style of the zoom area indicator in the bird's eye div |
| 652 | 242 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
| 661 | 243 // style of zoom area "rubber band" |
| 244 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
| 609 | 245 // is the "about" window shown? |
| 246 'isAboutDivVisible' : false | |
| 247 | |
| 603 | 248 }; |
| 648 | 249 |
| 601 | 250 // affine geometry classes |
| 251 var geom = dlGeometry(); | |
| 648 | 252 |
| 636 | 253 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 648 | 254 |
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255 var actions = { |
| 661 | 256 // init: digilib initialization |
| 257 init : function(options) { | |
| 258 // settings for this digilib instance are merged from defaults and options | |
| 259 var settings = $.extend({}, defaults, options); | |
| 260 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
| 261 var queryParams = {}; | |
| 262 if (isFullscreen) { | |
| 263 queryParams = parseQueryParams(); | |
| 264 // check scalerBaseUrl | |
| 265 if (settings.scalerBaseUrl == null) { | |
| 266 // try the host this came from | |
| 267 var h = window.location.host; | |
| 268 if (window.location.host) { | |
| 269 var url = window.location.href; | |
| 270 // assume the page lives in [webapp]/jquery/ | |
| 271 var pos = url.indexOf('jquery/'); | |
| 272 if (pos > 0) { | |
| 273 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 645 | 274 } |
| 275 } | |
| 629 | 276 } |
| 661 | 277 } |
| 278 return this.each(function() { | |
| 279 var $elem = $(this); | |
| 280 var data = $elem.data('digilib'); | |
| 681 | 281 var params, elemSettings; |
| 661 | 282 // if the plugin hasn't been initialized yet |
| 283 if (!data) { | |
| 284 // merge query parameters | |
| 285 if (isFullscreen) { | |
| 681 | 286 params = queryParams; |
| 661 | 287 } else { |
| 681 | 288 params = parseImgParams($elem); |
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289 } |
| 661 | 290 // store $(this) element in the settings |
| 681 | 291 elemSettings = $.extend({}, settings, params); |
| 690 | 292 data = { |
| 661 | 293 $elem : $elem, |
| 294 settings : elemSettings, | |
| 681 | 295 queryParams : params |
| 661 | 296 }; |
| 297 // store in data element | |
| 298 $elem.data('digilib', data); | |
| 299 } | |
| 300 unpackParams(data); | |
| 675 | 301 // create HTML structure for scaler |
| 661 | 302 setupScalerDiv(data); |
| 690 | 303 // add buttons |
| 304 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
| 305 showButtons(data, true, i); | |
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306 } |
| 661 | 307 // bird's eye view creation |
| 703 | 308 if (elemSettings.isBirdDivVisible) { |
| 631 | 309 setupBirdDiv(data); |
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310 } |
| 661 | 311 // about window creation - TODO: could be deferred? restrict to only one item? |
| 312 setupAboutDiv(data); | |
| 703 | 313 // TODO: the actual moving code |
| 700 | 314 setupZoomDrag(data); |
| 661 | 315 }); |
| 316 }, | |
| 317 | |
| 318 // destroy: clean up digilib | |
| 319 destroy : function(data) { | |
| 320 return this.each(function(){ | |
| 321 var $elem = $(this); | |
| 322 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
| 323 data.digilib.remove(); | |
| 324 $elem.removeData('digilib'); | |
| 325 }); | |
| 326 }, | |
| 327 | |
| 328 // show or hide the 'about' window | |
| 329 showAboutDiv : function(data, show) { | |
| 330 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
| 331 }, | |
| 648 | 332 |
| 661 | 333 // event handler: toggles the visibility of the bird's eye window |
| 334 showBirdDiv : function (data, show) { | |
| 335 if (data.$birdDiv == null) { | |
| 336 // no bird div -> create | |
| 337 setupBirdDiv(data); | |
| 338 } | |
| 339 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
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340 data.$birdImg.triggerHandler('load'); |
| 661 | 341 }, |
| 342 | |
| 343 // goto given page nr (+/-: relative) | |
| 344 gotoPage : function (data, pageNr) { | |
| 345 var settings = data.settings; | |
| 346 var oldpn = settings.pn; | |
| 709 | 347 if (pageNr == null) { |
| 348 pageNr = window.prompt("Goto page number", oldpn); | |
| 349 } | |
| 661 | 350 var pn = setNumValue(settings, "pn", pageNr); |
| 351 if (pn == null) return false; // nothing happened | |
| 352 if (pn < 1) { | |
| 353 alert("no such page (page number too low)"); | |
| 354 settings.pn = oldpn; | |
| 355 return false; | |
| 356 } | |
| 357 if (settings.pt) { | |
| 358 if (pn > settings.pt) { | |
| 359 alert("no such page (page number too high)"); | |
| 616 | 360 settings.pn = oldpn; |
| 361 return false; | |
| 627 | 362 } |
| 661 | 363 } |
| 364 // reset mk and others(?) | |
| 365 data.marks = []; | |
| 366 data.zoomArea = MAX_ZOOMAREA; | |
| 367 // then reload | |
| 368 redisplay(data); | |
| 369 }, | |
| 647 | 370 |
| 661 | 371 // zoom by a given factor |
| 372 zoomBy : function (data, factor) { | |
| 373 zoomBy(data, factor); | |
| 374 }, | |
| 640 | 375 |
| 661 | 376 // zoom interactively |
| 377 zoomArea : function (data) { | |
| 378 zoomArea(data); | |
| 379 }, | |
| 643 | 380 |
| 661 | 381 // zoom out to full page |
| 382 zoomFull : function (data, mode) { | |
| 383 data.zoomArea = MAX_ZOOMAREA; | |
| 384 if (mode === 'width') { | |
| 385 data.dlOpts.fitwidth = 1; | |
| 386 delete data.dlOpts.fitheight; | |
| 387 } else if (mode === 'height') { | |
| 388 data.dlOpts.fitheight = 1; | |
| 389 delete data.dlOpts.fitwidth; | |
| 390 } else { | |
| 391 delete data.dlOpts.fitwidth; | |
| 392 delete data.dlOpts.fitheight; | |
| 393 } | |
| 394 redisplay(data); | |
| 395 }, | |
| 396 | |
| 397 // set a mark by clicking (or giving a position) | |
| 398 setMark : function (data, mpos) { | |
| 399 if (mpos == null) { | |
| 400 // interactive | |
| 401 setMark(data); | |
| 402 } else { | |
| 403 // use position | |
| 404 data.marks.push(pos); | |
| 656 | 405 redisplay(data); |
| 597 | 406 } |
| 661 | 407 }, |
| 408 | |
| 409 // remove the last mark | |
| 410 removeMark : function (data) { | |
| 411 data.marks.pop(); | |
| 412 redisplay(data); | |
| 413 }, | |
| 414 | |
| 415 // mirror the image | |
| 416 mirror : function (data, mode) { | |
| 417 var flags = data.scalerFlags; | |
| 418 if (mode === 'h') { | |
| 419 if (flags.hmir) { | |
| 420 delete flags.hmir; | |
| 421 } else { | |
| 422 flags.hmir = 1; | |
| 423 } | |
| 424 } else { | |
| 425 if (flags.vmir) { | |
| 426 delete flags.vmir; | |
| 427 } else { | |
| 428 flags.vmir = 1; | |
| 429 } | |
| 430 } | |
| 431 redisplay(data); | |
| 432 }, | |
| 643 | 433 |
| 661 | 434 // rotate the image |
| 435 rotate : function (data, angle) { | |
| 436 var rot = data.settings.rot; | |
| 437 if (angle == null) { | |
| 438 angle = window.prompt("Rotation angle:", rot); | |
| 439 } | |
| 440 data.settings.rot = angle; | |
| 441 redisplay(data); | |
| 442 }, | |
| 443 | |
| 444 // change brightness | |
| 445 brightness : function (data, factor) { | |
| 446 var brgt = data.settings.brgt; | |
| 447 if (factor == null) { | |
| 448 factor = window.prompt("Brightness (-255..255)", brgt); | |
| 449 } | |
| 450 data.settings.brgt = factor; | |
| 451 redisplay(data); | |
| 452 }, | |
| 453 | |
| 454 // change contrast | |
| 455 contrast : function (data, factor) { | |
| 456 var cont = data.settings.cont; | |
| 457 if (factor == null) { | |
| 458 factor = window.prompt("Contrast (-8, 8)", cont); | |
| 459 } | |
| 460 data.settings.cont = factor; | |
| 461 redisplay(data); | |
| 681 | 462 }, |
| 703 | 463 |
| 683 | 464 // display more (or less) button sets |
| 465 morebuttons : function (data, more) { | |
| 689 | 466 var settings = data.settings; |
| 692 | 467 if (more == null) { |
| 696 | 468 // toggle more or less (only works for 2 sets) |
| 692 | 469 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
| 470 if (settings.visibleButtonSets >= maxbtns) { | |
| 471 more = '-1'; | |
| 472 } else { | |
| 473 more = '+1'; | |
| 474 } | |
| 475 } | |
| 683 | 476 if (more === '-1') { |
| 477 // remove set | |
| 690 | 478 var setIdx = settings.visibleButtonSets - 1; |
| 479 if (showButtons(data, false, setIdx, true)) { | |
| 480 settings.visibleButtonSets--; | |
| 481 } | |
| 683 | 482 } else { |
| 483 // add set | |
| 690 | 484 var setIdx = settings.visibleButtonSets; |
| 485 if (showButtons(data, true, setIdx, true)) { | |
| 486 settings.visibleButtonSets++; | |
| 683 | 487 } |
| 488 } | |
| 684 | 489 }, |
| 681 | 490 |
| 696 | 491 // reset image parameters to defaults |
| 681 | 492 reset : function (data) { |
| 493 var settings = data.settings; | |
| 494 var paramNames = settings.digilibParamNames; | |
| 495 var params = data.queryParams; | |
| 702 | 496 // resets zoomArea, marks, scalerflags |
| 681 | 497 resetData(data); |
| 498 // delete all digilib parameters | |
| 499 for (var i = 0; i < paramNames.length; i++) { | |
| 500 var paramName = paramNames[i]; | |
| 501 delete settings[paramName]; | |
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502 } |
| 681 | 503 // fullscreen: restore only fn/pn parameters |
| 504 if (settings.interactionMode === 'fullscreen') { | |
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505 settings.fn = params.fn || ''; // no default defined |
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506 settings.pn = params.pn || defaults.pn; |
| 681 | 507 // embedded: restore original parameters |
| 508 } else { | |
| 509 $.extend(settings, params); | |
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510 } |
| 702 | 511 // TODO: should we really reset all user preferences here? |
| 512 settings.isBirdDivVisible = false; | |
| 513 settings.visibleButtonSets = 1; | |
| 705 | 514 delete data.dlOpts.fitwidth; |
| 515 delete data.dlOpts.fitheight; | |
| 681 | 516 redisplay(data); |
| 682 | 517 }, |
| 518 | |
| 696 | 519 // presents a reference url (returns value if noprompt) |
| 520 reference : function (data, noprompt) { | |
| 682 | 521 var settings = data.settings; |
| 522 var url; | |
| 523 if (settings.interactionMode === 'fullscreen') { | |
| 524 url = getDigilibUrl(data); | |
| 525 } else { | |
| 526 url = getScalerUrl(data); | |
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527 } |
| 696 | 528 if (noprompt == null) { |
| 529 window.prompt("URL reference to the current view", url); | |
| 530 } | |
| 531 return url; | |
| 532 }, | |
| 703 | 533 |
| 696 | 534 // set image quality |
| 535 setquality : function (data, qual) { | |
| 536 var oldq = getQuality(data); | |
| 537 if (qual == null) { | |
| 538 qual = window.prompt("Image quality (0..2)", oldq); | |
| 539 } | |
| 540 qual = parseInt(qual, 10); | |
| 541 if (qual >= 0 && qual <= 2) { | |
| 542 setQuality(data, qual); | |
| 543 redisplay(data); | |
| 544 } | |
| 661 | 545 } |
| 598 | 546 }; |
| 597 | 547 |
| 601 | 548 // returns parameters from page url |
| 600 | 549 var parseQueryParams = function() { |
| 629 | 550 return parseQueryString(window.location.search.slice(1)); |
| 551 }; | |
| 648 | 552 |
| 629 | 553 // returns parameters from embedded img-element |
| 600 | 554 var parseImgParams = function($elem) { |
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555 var src = $elem.find('img').first().attr('src'); |
| 703 | 556 if (!src) return null; |
| 600 | 557 var pos = src.indexOf('?'); |
| 558 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 559 var scalerUrl = src.substring(0, pos); | |
| 620 | 560 var params = parseQueryString(query); |
| 561 params.scalerBaseUrl = scalerUrl; | |
| 562 return params; | |
| 629 | 563 }; |
| 600 | 564 |
| 601 | 565 // parses query parameter string into parameter object |
| 600 | 566 var parseQueryString = function(query) { |
| 694 | 567 var params = {}; |
| 568 if (query == null) return params; | |
| 600 | 569 var pairs = query.split("&"); |
| 629 | 570 //var keys = []; |
| 600 | 571 for (var i = 0; i < pairs.length; i++) { |
| 572 var pair = pairs[i].split("="); | |
| 573 if (pair.length === 2) { | |
| 620 | 574 params[pair[0]] = pair[1]; |
| 629 | 575 //keys.push(pair[0]); |
| 627 | 576 } |
| 629 | 577 } |
| 620 | 578 return params; |
| 629 | 579 }; |
| 661 | 580 |
| 636 | 581 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 582 var getParamString = function (settings, keys, defaults) { | |
| 608 | 583 var paramString = ''; |
| 643 | 584 var nx = false; |
| 608 | 585 for (i = 0; i < keys.length; ++i) { |
| 586 var key = keys[i]; | |
| 656 | 587 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
| 608 | 588 // first param gets no '&' |
| 643 | 589 if (nx) { |
| 590 paramString += '&'; | |
| 591 } else { | |
| 592 nx = true; | |
| 593 } | |
| 608 | 594 // add parm=val |
| 595 paramString += key + '=' + settings[key]; | |
| 636 | 596 } |
| 608 | 597 } |
| 598 return paramString; | |
| 624 | 599 }; |
| 600 | |
| 629 | 601 // returns URL and query string for Scaler |
| 602 var getScalerUrl = function (data) { | |
| 646 | 603 var settings = data.settings; |
| 645 | 604 if (settings.scalerBaseUrl == null) { |
| 605 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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606 } |
| 658 | 607 packParams(data); |
| 629 | 608 var keys = settings.scalerParamNames; |
| 636 | 609 var queryString = getParamString(settings, keys, defaults); |
| 629 | 610 var url = settings.scalerBaseUrl + '?' + queryString; |
| 611 return url; | |
| 612 }; | |
| 613 | |
| 614 // returns URL and query string for current digilib | |
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615 var getDigilibUrl = function (data) { |
| 636 | 616 packParams(data); |
| 629 | 617 var settings = data.settings; |
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618 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 629 | 619 var url = window.location.toString(); |
| 620 var pos = url.indexOf('?'); | |
| 621 var baseUrl = url.substring(0, pos); | |
| 622 var newurl = baseUrl + '?' + queryString; | |
| 623 return newurl; | |
| 624 }; | |
| 625 | |
| 648 | 626 // processes some parameters into objects and stuff |
| 624 | 627 var unpackParams = function (data) { |
| 628 var settings = data.settings; | |
| 629 | 629 // zoom area |
| 624 | 630 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 636 | 631 data.zoomArea = zoomArea; |
| 629 | 632 // marks |
| 624 | 633 var marks = []; |
| 643 | 634 if (settings.mk) { |
| 635 var mk = settings.mk; | |
| 636 if (mk.indexOf(";") >= 0) { | |
| 637 var pa = mk.split(";"); // old format with ";" | |
| 638 } else { | |
| 639 var pa = mk.split(","); // new format | |
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640 } |
| 643 | 641 for (var i = 0; i < pa.length ; i++) { |
| 642 var pos = pa[i].split("/"); | |
| 643 if (pos.length > 1) { | |
| 644 marks.push(geom.position(pos[0], pos[1])); | |
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645 } |
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646 } |
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647 } |
| 636 | 648 data.marks = marks; |
| 643 | 649 // mo (Scaler flags) |
| 650 var flags = {}; | |
| 651 if (settings.mo) { | |
| 652 var pa = settings.mo.split(","); | |
| 653 for (var i = 0; i < pa.length ; i++) { | |
| 654 flags[pa[i]] = pa[i]; | |
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655 } |
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656 } |
| 643 | 657 data.scalerFlags = flags; |
| 702 | 658 retrieveOptionsCookie(data); |
| 648 | 659 }; |
| 660 | |
| 624 | 661 // put objects back into parameters |
| 662 var packParams = function (data) { | |
| 663 var settings = data.settings; | |
| 629 | 664 // zoom area |
| 636 | 665 if (data.zoomArea) { |
| 640 | 666 settings.wx = cropFloat(data.zoomArea.x); |
| 667 settings.wy = cropFloat(data.zoomArea.y); | |
| 668 settings.ww = cropFloat(data.zoomArea.width); | |
| 669 settings.wh = cropFloat(data.zoomArea.height); | |
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670 } |
| 629 | 671 // marks |
| 636 | 672 if (data.marks) { |
| 643 | 673 settings.mk = ''; |
| 636 | 674 for (var i = 0; i < data.marks.length; i++) { |
| 643 | 675 if (i) { |
| 676 settings.mk += ','; | |
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677 } |
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678 settings.mk += cropFloat(data.marks[i].x).toString() + |
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679 '/' + cropFloat(data.marks[i].y).toString(); |
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680 } |
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681 } |
| 643 | 682 // Scaler flags |
| 683 if (data.scalerFlags) { | |
| 684 var mo = ''; | |
| 685 for (var f in data.scalerFlags) { | |
| 686 if (mo) { | |
| 687 mo += ','; | |
| 688 } | |
| 689 mo += f; | |
| 690 } | |
| 691 settings.mo = mo; | |
| 692 } | |
| 703 | 693 // user interface options |
| 702 | 694 storeOptionsCookie(data); |
| 695 }; | |
| 681 | 696 |
| 702 | 697 var storeOptionsCookie = function (data) { |
| 694 | 698 // save digilib options in cookie |
| 702 | 699 // TODO: in embedded mode this is not called |
| 694 | 700 /* store in parameter clop |
| 701 * if (data.dlOpts) { | |
| 702 var clop = ''; | |
| 703 for (var o in data.dlOpts) { | |
| 704 if (clop) { | |
| 643 | 705 clop += ','; |
| 706 } | |
| 707 clop += o; | |
| 708 } | |
| 709 settings.clop = clop; | |
| 694 | 710 } */ |
| 702 | 711 var settings = data.settings; |
| 712 if (data.dlOpts) { | |
| 713 // save digilib settings in options | |
| 714 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
| 715 data.dlOpts.buttons = settings.visibleButtonSets; | |
| 716 var clop = ''; | |
| 717 for (var o in data.dlOpts) { | |
| 718 if (clop) { | |
| 719 clop += '&'; | |
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720 } |
| 702 | 721 clop += o + '=' + data.dlOpts[o]; |
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722 } |
| 702 | 723 if (jQuery.cookie) { |
| 724 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 725 console.debug("set cookie=", ck, " value=", clop); | |
| 726 jQuery.cookie(ck, clop); | |
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727 } |
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728 } |
| 624 | 729 }; |
| 648 | 730 |
| 702 | 731 var retrieveOptionsCookie = function (data) { |
| 732 // clop (digilib options) | |
| 733 var opts = {}; | |
| 734 var settings = data.settings; | |
| 735 if (jQuery.cookie) { | |
| 736 /* read from parameter clop | |
| 737 * if (settings.clop) { | |
| 738 var pa = settings.clop.split(","); | |
| 739 for (var i = 0; i < pa.length ; i++) { | |
| 740 opts[pa[i]] = pa[i]; | |
| 741 } | |
| 742 } */ | |
| 743 // read from cookie | |
| 744 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
| 745 var cp = jQuery.cookie(ck); | |
| 746 console.debug("get cookie=", ck, " value=", cp); | |
| 747 // in query string format | |
| 748 opts = parseQueryString(cp); | |
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749 } |
| 702 | 750 data.dlOpts = opts; |
| 751 // birdview option | |
| 752 if (opts.birdview != null) { | |
| 753 settings.isBirdDivVisible = opts.birdview === '1'; | |
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754 } |
| 702 | 755 // visible button sets |
| 756 if (opts.buttons != null) { | |
| 757 settings.visibleButtonSets = opts.buttons; | |
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758 } |
| 704 | 759 }; |
| 702 | 760 |
| 681 | 761 // clear digilib data for reset |
| 762 var resetData = function (data) { | |
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763 // TODO: we should reset instead of delete |
| 681 | 764 if (data.zoomArea) delete data.zoomArea; |
| 765 if (data.marks) delete data.marks; | |
| 766 if (data.scalerFlags) delete data.scalerFlags; | |
| 767 }; | |
| 768 | |
| 615 | 769 // (re)load the img from a new scaler URL |
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770 var redisplay = function (data) { |
| 629 | 771 var settings = data.settings; |
| 772 if (settings.interactionMode === 'fullscreen') { | |
| 773 // update location.href (browser URL) in fullscreen mode | |
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774 var url = getDigilibUrl(data); |
| 629 | 775 var history = window.history; |
| 776 if (typeof(history.pushState) === 'function') { | |
| 777 console.debug("we could modify history, but we don't..."); | |
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778 } |
| 629 | 779 window.location = url; |
| 780 } else { | |
| 781 // embedded mode -- just change img src | |
| 782 var url = getScalerUrl(data); | |
| 783 data.$img.attr('src', url); | |
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784 } |
| 615 | 785 }; |
| 786 | |
| 655 | 787 // returns maximum size for scaler img in fullscreen mode |
| 788 var getFullscreenImgSize = function($elem) { | |
| 789 var $win = $(window); | |
| 790 var winH = $win.height(); | |
| 791 var winW = $win.width(); | |
| 792 // TODO: account for borders? | |
| 793 return geom.size(winW, winH); | |
| 794 }; | |
| 795 | |
| 601 | 796 // creates HTML structure for digilib in elem |
| 620 | 797 var setupScalerDiv = function (data) { |
| 798 var settings = data.settings; | |
| 640 | 799 var $elem = data.$elem; |
| 679 | 800 var $img, scalerUrl; |
| 801 // fullscreen | |
| 601 | 802 if (settings.interactionMode === 'fullscreen') { |
| 602 | 803 var imgSize = getFullscreenImgSize($elem); |
| 643 | 804 // fitwidth/height omits destination height/width |
| 708 | 805 // if (data.dlOpts['fitheight'] !== '1') { |
| 806 if (data.dlOpts['fitheight'] == null) { | |
| 643 | 807 settings.dw = imgSize.width; |
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808 } |
| 708 | 809 // if (data.dlOpts['fitwidth'] !== '1') { |
| 810 if (data.dlOpts['fitwidth'] == null) { | |
| 643 | 811 settings.dh = imgSize.height; |
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812 } |
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813 $img = $('<img/>'); |
| 679 | 814 scalerUrl = getScalerUrl(data); |
| 815 // embedded mode -- try to keep img tag | |
| 602 | 816 } else { |
| 616 | 817 $img = $elem.find('img'); |
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818 if ($img.length > 0) { |
| 679 | 819 console.debug("img detach:", $img); |
| 820 scalerUrl = $img.attr('src'); | |
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821 $img.detach(); |
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822 } else { |
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823 $img = $('<img/>'); |
| 679 | 824 scalerUrl = getScalerUrl(data); |
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825 } |
| 601 | 826 } |
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827 // create new html |
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828 $elem.empty(); // TODO: should we keep stuff for customization? |
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829 var $scaler = $('<div class="scaler"/>'); |
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830 $elem.append($scaler); |
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831 $scaler.append($img); |
| 615 | 832 $img.addClass('pic'); |
| 642 | 833 data.$scaler = $scaler; |
| 629 | 834 data.$img = $img; |
| 680 | 835 // setup image load handler before setting the src attribute (IE bug) |
| 836 $img.load(scalerImgLoadedHandler(data)); | |
| 837 $img.attr('src', scalerUrl); | |
| 708 | 838 // set scaler div size explicitly in case $img is hidden (for zoomDrag) |
| 839 $imgRect = geom.rectangle($img); | |
| 840 $imgRect.adjustDiv(data.$scaler); | |
| 601 | 841 }; |
| 608 | 842 |
| 603 | 843 // creates HTML structure for buttons in elem |
| 690 | 844 var createButtons = function (data, buttonSetIdx) { |
| 640 | 845 var $elem = data.$elem; |
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846 var settings = data.settings; |
| 658 | 847 var mode = settings.interactionMode; |
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848 var buttonSettings = settings.buttonSettings[mode]; |
| 675 | 849 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
| 683 | 850 if (buttonGroup == null) { |
| 851 // no buttons here | |
| 852 return; | |
| 853 } | |
| 854 var $buttonsDiv = $('<div class="buttons"/>'); | |
| 675 | 855 var buttonNames = buttonSettings[buttonGroup]; |
| 856 for (var i = 0; i < buttonNames.length; i++) { | |
| 857 var buttonName = buttonNames[i]; | |
| 858 var buttonConfig = settings.buttons[buttonName]; | |
| 658 | 859 // construct the button html |
| 860 var $button = $('<div class="button"></div>'); | |
| 861 var $a = $('<a/>'); | |
| 862 var $img = $('<img class="button"/>'); | |
| 863 $buttonsDiv.append($button); | |
| 864 $button.append($a); | |
| 865 $a.append($img); | |
| 866 // add attributes and bindings | |
| 867 $button.attr('title', buttonConfig.tooltip); | |
| 675 | 868 $button.addClass('button-' + buttonName); |
| 658 | 869 // create handler for the buttons |
| 870 $a.bind('click.digilib', (function () { | |
| 871 // we create a new closure to capture the value of action | |
| 872 var action = buttonConfig.onclick; | |
| 873 if ($.isArray(action)) { | |
| 874 // the handler function calls digilib with action and parameters | |
| 875 return function (evt) { | |
| 876 console.debug('click action=', action, ' evt=', evt); | |
| 877 $elem.digilib.apply($elem, action); | |
| 878 return false; | |
| 879 }; | |
| 880 } else { | |
| 881 // the handler function calls digilib with action | |
| 882 return function (evt) { | |
| 883 console.debug('click action=', action, ' evt=', evt); | |
| 884 $elem.digilib(action); | |
| 885 return false; | |
| 886 }; | |
| 887 } | |
| 888 })()); | |
| 889 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
| 683 | 890 } |
| 655 | 891 // make buttons div scroll if too large for window |
| 892 if ($buttonsDiv.height() > $(window).height() - 10) { | |
| 893 $buttonsDiv.css('position', 'absolute'); | |
| 894 } | |
| 690 | 895 // buttons hidden at first |
| 896 $buttonsDiv.hide(); | |
| 897 $elem.append($buttonsDiv); | |
| 675 | 898 if (data.$buttonSets == null) { |
| 690 | 899 // first button set |
| 675 | 900 data.$buttonSets = [$buttonsDiv]; |
| 901 } else { | |
| 683 | 902 $elem.append($buttonsDiv); |
| 675 | 903 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
| 904 } | |
| 605 | 905 return $buttonsDiv; |
| 603 | 906 }; |
| 608 | 907 |
| 908 // creates HTML structure for the bird's eye view in elem | |
| 631 | 909 var setupBirdDiv = function (data) { |
| 640 | 910 var $elem = data.$elem; |
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911 var settings = data.settings; |
| 608 | 912 // use only the relevant parameters |
| 913 var keys = ['fn','pn','dw','dh']; | |
| 667 | 914 var birdDivOptions = { |
| 915 dw : settings.birdDivWidth, | |
| 916 dh : settings.birdDivHeight | |
| 917 }; | |
| 918 var birdSettings = $.extend({}, settings, birdDivOptions); | |
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919 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 608 | 920 // the bird's eye div |
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921 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
| 608 | 922 // the detail indicator frame |
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923 var $birdZoom = $('<div class="birdZoom" style="display:none; position:absolute; background-color:transparent;"/>'); |
| 608 | 924 // the small image |
| 925 var $birdImg = $('<img class="birdimg"/>'); | |
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926 $elem.append($birdDiv); |
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927 $birdDiv.append($birdZoom); |
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928 $birdDiv.append($birdImg); |
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929 $birdZoom.css(data.settings.birdIndicatorStyle); |
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930 data.$birdDiv = $birdDiv; |
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931 data.$birdZoom = $birdZoom; |
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932 data.$birdImg = $birdImg; |
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933 $birdImg.load(birdImgLoadedHandler(data)); |
| 608 | 934 $birdImg.attr('src', birdUrl); |
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935 if (data.settings.isBirdDivVisible) { |
| 680 | 936 $birdDiv.show(); |
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937 } |
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938 birdZoom(data); |
|
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939 }; |
| 608 | 940 |
| 618 | 941 // creates HTML structure for the about view in elem |
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942 var setupAboutDiv = function (data) { |
| 640 | 943 var $elem = data.$elem; |
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944 var settings = data.settings; |
| 618 | 945 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 609 | 946 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 947 var $link = $('<a/>'); | |
| 948 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 949 var $content = $('<p/>'); | |
| 950 $elem.append($aboutDiv); | |
| 951 $aboutDiv.append($header); | |
| 952 $aboutDiv.append($link); | |
| 953 $aboutDiv.append($content); | |
| 954 $link.append($logo); | |
| 955 $logo.attr('src', settings.logoUrl); | |
| 628 | 956 $link.attr('href', settings.homeUrl); |
| 609 | 957 $content.text('Version: ' + settings.version); |
| 628 | 958 // click hides |
| 642 | 959 $aboutDiv.bind('click.digilib', function () { |
| 639 | 960 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 642 | 961 return false; |
| 703 | 962 }); |
| 628 | 963 data.$aboutDiv = $aboutDiv; |
| 627 | 964 }; |
| 965 | |
| 628 | 966 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 967 var showDiv = function (isVisible, $div, show) { | |
| 638 | 968 if (show == null) { |
| 628 | 969 // toggle visibility |
| 970 isVisible = !isVisible; | |
| 971 } else { | |
| 972 // set visibility | |
| 973 isVisible = show; | |
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974 } |
| 628 | 975 if (isVisible) { |
| 976 $div.fadeIn(); | |
| 977 } else { | |
| 978 $div.fadeOut(); | |
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979 } |
| 628 | 980 return isVisible; |
| 627 | 981 }; |
| 609 | 982 |
| 690 | 983 // display more (or less) button sets |
| 984 var showButtons = function (data, more, setIdx, animated) { | |
| 704 | 985 var atime = animated ? 'fast': 0; |
| 690 | 986 if (more) { |
| 987 // add set | |
| 988 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 989 var $set; | |
| 990 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
| 991 // set exists | |
| 992 $set = data.$buttonSets[setIdx]; | |
| 993 } else { | |
| 994 $set = createButtons(data, setIdx); | |
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995 } |
| 690 | 996 if ($set == null) return false; |
| 997 var btnWidth = $set.width(); | |
| 998 // move remaining sets left and show new set | |
| 704 | 999 if ($otherSets.length > 0) { |
| 1000 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
| 1001 function () {$set.show();}); | |
| 690 | 1002 } else { |
| 1003 $set.show(); | |
| 704 | 1004 } |
| 690 | 1005 } else { |
| 1006 // remove set | |
| 1007 var $set = data.$buttonSets[setIdx]; | |
| 1008 if ($set == null) return false; | |
| 1009 var btnWidth = $set.width(); | |
| 1010 // hide last set | |
| 1011 $set.hide(); | |
| 1012 // take remaining sets and move right | |
| 1013 var $otherSets = data.$elem.find('div.buttons:visible'); | |
| 704 | 1014 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
| 1015 } | |
| 690 | 1016 return true; |
| 1017 }; | |
| 1018 | |
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1019 // create Transform from area and $img |
| 668 | 1020 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
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1021 var picrect = geom.rectangle($img); |
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1022 var trafo = geom.transform(); |
| 668 | 1023 // move zoom area offset to center |
|
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1024 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
| 668 | 1025 // scale zoom area size to [1,1] |
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1026 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 668 | 1027 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
| 1028 if (rot || hmir || vmir) { | |
| 1029 // move [0.5,0.5] to center | |
| 1030 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
| 1031 if (hmir) { | |
| 1032 // mirror about center | |
| 1033 trafo.concat(trafo.getMirror('y')); | |
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1034 } |
| 668 | 1035 if (vmir) { |
| 1036 // mirror about center | |
| 1037 trafo.concat(trafo.getMirror('x')); | |
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1038 } |
| 668 | 1039 if (rot) { |
| 1040 // rotate around center | |
| 1041 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1042 } |
| 668 | 1043 // move back |
| 1044 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1045 } |
|
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1046 // scale to screen position and size |
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1047 trafo.concat(trafo.getScale(picrect)); |
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1048 trafo.concat(trafo.getTranslation(picrect)); |
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1049 return trafo; |
| 648 | 1050 }; |
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1051 |
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1052 // returns function for load event of scaler img |
| 629 | 1053 var scalerImgLoadedHandler = function (data) { |
| 626 | 1054 return function () { |
| 620 | 1055 console.debug("img loaded! this=", this, " data=", data); |
| 1056 // create Transform from current area and picsize | |
| 668 | 1057 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
| 1058 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
| 679 | 1059 console.debug("imgTrafo=", data.imgTrafo); |
| 708 | 1060 var $img = data.$img; |
| 1061 // show image in case it was hidden (for example in zoomDrag) | |
| 1062 $img.show(); | |
| 620 | 1063 // display marks |
| 626 | 1064 renderMarks(data); |
|
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1065 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1066 var $birdImg = data.$birdImg; |
| 698 | 1067 // should the birdview adapt to mirror or rotation? decision: No. :-) |
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1068 if ($birdImg) { |
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1069 $birdImg.triggerHandler('load'); |
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1070 } |
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1071 }; |
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1072 }; |
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1073 |
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1074 // returns function for load event of bird's eye view img |
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1075 var birdImgLoadedHandler = function (data) { |
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1076 var $img = data.$birdImg; |
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1077 return function () { |
|
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1078 console.debug("birdimg loaded! this=", this, " data=", data); |
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1079 // create Transform from current area and picsize |
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1080 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
| 661 | 1081 // display red indicator around zoomarea |
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1082 renderbirdZoom(data); |
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1083 }; |
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1084 }; |
| 626 | 1085 |
| 1086 // place marks on the image | |
| 1087 var renderMarks = function (data) { | |
| 640 | 1088 var $elem = data.$elem; |
| 636 | 1089 var marks = data.marks; |
| 642 | 1090 // TODO: clear marks first(?) |
| 626 | 1091 for (var i = 0; i < marks.length; i++) { |
| 1092 var mark = marks[i]; | |
| 636 | 1093 if (data.zoomArea.containsPosition(mark)) { |
| 626 | 1094 var mpos = data.imgTrafo.transform(mark); |
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1095 console.debug("renderMarks: mpos=",mpos); |
| 626 | 1096 // create mark |
| 1097 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 1098 var $mark = $(html); | |
| 1099 $elem.append($mark); | |
| 647 | 1100 $mark.offset({left : mpos.x, top : mpos.y}); |
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1101 } |
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1102 } |
| 626 | 1103 }; |
| 648 | 1104 |
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1105 // show zoom area indicator on bird's eye view |
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1106 var renderbirdZoom = function (data) { |
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1107 var $birdZoom = data.$birdZoom; |
| 652 | 1108 var zoomArea = data.zoomArea; |
| 1109 var indRect = data.birdTrafo.transform(zoomArea); | |
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1110 var coords = { |
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1111 left : indRect.x-2, // acount for frame width |
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1112 top : indRect.y-2, |
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1113 width : indRect.width, |
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1114 height: indRect.height |
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1115 }; |
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1116 var normalSize = isFullArea(zoomArea); |
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1117 if (data.settings.interactionMode === 'fullscreen') { |
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1118 // no animation for fullscreen |
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1119 if (normalSize) return $birdZoom.hide(); |
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1120 $birdZoom.width(coords.width); |
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1121 $birdZoom.height(coords.height); |
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1122 $birdZoom.offset(coords); |
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1123 $birdZoom.show(); |
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1124 return; |
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1125 } |
|
663
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1126 // nice animation for embedded mode :-) |
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1127 var makeCompleteFunction = function($birdZoom, normalSize) { |
|
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1128 return function() { |
|
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1129 if (normalSize) $birdZoom.hide(); |
|
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1130 }; |
|
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1131 }; |
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1132 var opts = { |
|
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1133 'complete' : makeCompleteFunction($birdZoom, normalSize) |
|
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1134 }; |
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1135 if (!normalSize && $birdZoom.css('display') === 'none') $birdZoom.show(); |
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1136 $birdZoom.animate(coords, opts); |
|
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1137 }; |
| 652 | 1138 |
| 640 | 1139 // zooms by the given factor |
| 636 | 1140 var zoomBy = function(data, factor) { |
| 1141 var area = data.zoomArea; | |
| 1142 var newarea = area.copy(); | |
| 1143 // scale | |
| 1144 newarea.width /= factor; | |
| 1145 newarea.height /= factor; | |
| 1146 // and recenter | |
| 1147 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 1148 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 1149 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 1150 data.zoomArea = newarea; | |
|
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1151 redisplay(data); |
| 636 | 1152 }; |
| 1153 | |
| 640 | 1154 // add a mark where clicked |
| 1155 var setMark = function (data) { | |
| 642 | 1156 var $scaler = data.$scaler; |
| 640 | 1157 // start event capturing |
| 642 | 1158 $scaler.one('click.digilib', function (evt) { |
| 640 | 1159 // event handler adding a new mark |
|
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1160 var mpos = geom.position(evt); |
| 640 | 1161 var pos = data.imgTrafo.invtransform(mpos); |
| 1162 data.marks.push(pos); | |
| 1163 redisplay(data); | |
| 642 | 1164 return false; // do we even get here? |
| 640 | 1165 }); |
| 1166 }; | |
| 661 | 1167 |
| 647 | 1168 var zoomArea = function(data) { |
| 1169 $elem = data.$elem; | |
| 1170 $scaler = data.$scaler; | |
| 1171 var pt1, pt2; | |
| 1172 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
| 1173 $elem.append($zoomDiv); | |
| 661 | 1174 $zoomDiv.css(data.settings.zoomrectStyle); |
| 647 | 1175 var picRect = geom.rectangle($scaler); |
| 1176 // FIX ME: is there a way to query the border width from CSS info? | |
| 1177 // rect.x -= 2; // account for overlay borders | |
| 1178 // rect.y -= 2; | |
| 1179 | |
| 1180 var zoomStart = function (evt) { | |
| 1181 pt1 = geom.position(evt); | |
| 1182 // setup and show zoom div | |
| 1183 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
| 1184 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
| 661 | 1185 $zoomDiv.width(0).height(0); |
| 647 | 1186 $zoomDiv.show(); |
| 1187 // register events | |
| 1188 $elem.bind("mousemove.digilib", zoomMove); | |
| 1189 $elem.bind("mouseup.digilib", zoomEnd); | |
| 1190 return false; | |
| 1191 }; | |
| 661 | 1192 |
| 647 | 1193 // mouseup handler: end moving |
| 1194 var zoomEnd = function (evt) { | |
| 1195 pt2 = geom.position(evt); | |
| 1196 // assume a click and continue if the area is too small | |
| 1197 var clickRect = geom.rectangle(pt1, pt2); | |
| 703 | 1198 if (clickRect.getArea() <= 5) return false; |
| 647 | 1199 // hide zoom div |
| 1200 $zoomDiv.remove(); | |
| 1201 // unregister events | |
| 1202 $elem.unbind("mousemove.digilib", zoomMove); | |
| 1203 $elem.unbind("mouseup.digilib", zoomEnd); | |
| 1204 // clip and transform | |
| 1205 clickRect.clipTo(picRect); | |
| 1206 var area = data.imgTrafo.invtransform(clickRect); | |
| 1207 data.zoomArea = area; | |
| 1208 // zoomed is always fit | |
| 1209 data.settings.ws = 1; | |
| 1210 redisplay(data); | |
| 1211 return false; | |
| 1212 }; | |
| 661 | 1213 |
| 647 | 1214 // mouse move handler |
| 1215 var zoomMove = function (evt) { | |
| 1216 pt2 = geom.position(evt); | |
| 1217 var rect = geom.rectangle(pt1, pt2); | |
| 1218 rect.clipTo(picRect); | |
| 1219 // update zoom div | |
|
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1220 rect.adjustDiv($zoomDiv); |
| 647 | 1221 return false; |
| 1222 }; | |
| 661 | 1223 |
| 647 | 1224 // bind start zoom handler |
| 1225 $scaler.one('mousedown.digilib', zoomStart); | |
| 1226 }; | |
| 640 | 1227 |
|
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1228 var birdZoom = function(data) { |
|
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1229 var $birdImg = data.$birdImg; |
|
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1230 var $birdZoom = data.$birdZoom; |
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1231 var startPos, newRect, birdImgRect, birdZoomRect; |
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1232 |
|
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1233 var birdZoomMove = function(evt) { |
|
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1234 // mousemove handler: drag |
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1235 var pos = geom.position(evt); |
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1236 var dx = pos.x - startPos.x; |
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1237 var dy = pos.y - startPos.y; |
|
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1238 // move birdZoom div, keeping size |
|
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1239 newRect = geom.rectangle( |
|
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1240 birdZoomRect.x + dx, |
|
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1241 birdZoomRect.y + dy, |
|
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1242 birdZoomRect.width, |
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1243 birdZoomRect.height); |
|
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1244 // stay within birdimage |
|
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1245 newRect.stayInside(birdImgRect); |
|
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1246 $birdZoom.offset({left : newRect.x, top : newRect.y}); |
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1247 // $birdZoom.show(); |
|
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1248 return false; |
|
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|
1249 }; |
|
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1250 |
|
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1251 var birdZoomEndDrag = function(evt) { |
|
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1252 // mouseup handler: reload page |
|
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1253 var settings = data.settings; |
| 673 | 1254 $(document).unbind("mousemove.digilib", birdZoomMove); |
| 1255 $(document).unbind("mouseup.digilib", birdZoomEndDrag); | |
| 1256 $birdZoom.unbind("mousemove.digilib", birdZoomMove); | |
| 1257 $birdZoom.unbind("mouseup.digilib", birdZoomEndDrag); | |
|
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1258 if (newRect == null) { // no movement happened |
|
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1259 startPos = birdZoomRect.getCenter(); |
|
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|
1260 birdZoomMove(evt); // set center to click position |
|
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1261 } |
|
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1262 if (data.zoomArea) { |
| 672 | 1263 // should always be true |
| 1264 var x = cropFloat((newRect.x - birdImgRect.x + 2) / birdImgRect.width); | |
| 1265 var y = cropFloat((newRect.y - birdImgRect.y + 2) / birdImgRect.height); | |
| 1266 data.zoomArea.x = x; | |
| 1267 data.zoomArea.y = y; | |
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1268 } |
|
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1269 settings.ws = 1; // zoomed is always fit |
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1270 redisplay(data); |
|
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1271 return false; |
|
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|
1272 }; |
|
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1273 |
|
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1274 var birdZoomStartDrag = function(evt) { |
|
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1275 // mousedown handler: start dragging bird zoom to a new position |
|
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1276 startPos = geom.position(evt); |
|
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1277 birdImgRect = geom.rectangle($birdImg); |
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1278 birdZoomRect = geom.rectangle($birdZoom); |
| 673 | 1279 $(document).bind("mousemove.digilib", birdZoomMove); |
| 1280 $(document).bind("mouseup.digilib", birdZoomEndDrag); | |
| 1281 $birdZoom.bind("mousemove.digilib", birdZoomMove); | |
| 1282 $birdZoom.bind("mouseup.digilib", birdZoomEndDrag); | |
|
671
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1283 return false; |
|
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|
1284 }; |
|
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|
1285 |
| 674 | 1286 $birdImg.bind("mousedown.digilib", birdZoomStartDrag); |
| 1287 $birdZoom.bind("mousedown.digilib", birdZoomStartDrag); | |
|
671
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1288 }; |
|
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|
1289 |
| 698 | 1290 var setupZoomDrag = function(data) { |
| 1291 // setup handlers for dragging the zoomed image | |
| 1292 var pt1, pt2; | |
| 1293 var dx = 0; | |
| 1294 var dy = 0; | |
| 1295 var $elem = data.$elem; | |
| 1296 var $scaler = data.$scaler; | |
| 1297 var $img = data.$img; | |
| 703 | 1298 |
| 698 | 1299 var dragStart = function (evt) { |
| 1300 // drag the image and load a new detail on mouse up | |
| 1301 // useless if not zoomed | |
| 1302 if (isFullArea(data.zoomArea)) return false; | |
| 1303 pt1 = geom.position(evt); | |
| 1304 $imgRect = geom.rectangle($img); | |
| 708 | 1305 // keep scaler div size while $img is hidden (for embedded mode) |
| 1306 $imgRect.adjustDiv($scaler); | |
| 698 | 1307 // hide the scaler image, show it as background of div instead |
| 708 | 1308 $scaler.css({ |
| 698 | 1309 'background-image' : 'url(' + $img.attr('src') + ')', |
| 1310 'background-repeat' : 'no-repeat', | |
| 699 | 1311 'background-position' : 'top left', |
| 698 | 1312 'cursor' : 'move' |
| 1313 }); | |
| 1314 $img.hide(); | |
| 1315 $(document).bind("mousemove.digilib", dragMove); | |
| 1316 $(document).bind("mouseup.digilib", dragEnd); | |
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1317 return false; |
| 698 | 1318 }; |
| 703 | 1319 |
| 698 | 1320 var dragMove = function (evt) { |
| 708 | 1321 // mousemove handler: drag zoomed image |
| 698 | 1322 var pos = geom.position(evt); |
| 1323 dx = pos.x - pt1.x; | |
| 1324 dy = pos.y - pt1.y; | |
| 1325 // move the background image to the new position | |
| 708 | 1326 $scaler.css({ |
| 698 | 1327 'background-position' : dx + "px " + dy + "px" |
| 1328 }); | |
| 1329 return false; | |
| 1330 }; | |
| 703 | 1331 |
| 698 | 1332 var dragEnd = function (evt) { |
| 708 | 1333 // mouseup handler: reload zoomed image in new position |
| 1334 $scaler.css({ | |
| 698 | 1335 'cursor' : 'default' |
| 1336 }); | |
| 1337 $(document).unbind("mousemove.digilib", dragMove); | |
| 1338 $(document).unbind("mouseup.digilib", dragEnd); | |
| 1339 // calculate relative offset | |
|
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1340 if (dx === 0 && dy === 0) return false; // no movement |
| 698 | 1341 // reload with scaler image showing the new ausschnitt |
|
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1342 // digilib.moveBy(x, y); |
|
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|
1343 var pos = geom.position(-dx, -dy); |
|
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1344 var newPos = data.imgTrafo.invtransform(pos); |
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1345 var newArea = data.zoomArea.setPt1(newPos); |
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1346 data.zoomArea = MAX_ZOOMAREA.fit(newArea); |
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1347 redisplay(data); |
| 698 | 1348 return false; |
| 1349 }; | |
| 1350 | |
| 1351 $scaler.bind("mousedown.digilib", dragStart); | |
| 1352 }; | |
| 1353 | |
| 696 | 1354 // get image quality as a number (0..2) |
| 1355 var getQuality = function (data) { | |
| 1356 var flags = data.scalerFlags; | |
| 1357 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
| 1358 return parseInt(q[1], 10); | |
| 699 | 1359 }; |
| 696 | 1360 |
| 1361 // set image quality as a number (0..2) | |
| 1362 var setQuality = function (data, qual) { | |
| 1363 var flags = data.scalerFlags; | |
| 1364 // clear flags | |
| 1365 for (var i = 0; i < 3; ++i) { | |
| 1366 delete flags['q'+i]; | |
|
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1367 } |
| 696 | 1368 flags['q'+qual] = 'q'+qual; |
| 699 | 1369 }; |
| 703 | 1370 |
| 643 | 1371 // sets a key to a value (relative values with +/- if relative=true) |
| 1372 var setNumValue = function(settings, key, value) { | |
| 709 | 1373 if (value == null) return null; |
|
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1374 if (isNumber(value)) { |
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1375 settings[key] = value; |
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1376 return value; |
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1377 } |
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1378 var sign = value[0]; |
| 643 | 1379 if (sign === '+' || sign === '-') { |
| 1380 if (settings[key] == null) { | |
|
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1381 // this isn't perfect but still... |
| 643 | 1382 settings[key] = 0; |
|
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1383 } |
| 643 | 1384 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
| 1385 } else { | |
| 1386 settings[key] = value; | |
|
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1387 } |
| 643 | 1388 return settings[key]; |
| 1389 }; | |
| 648 | 1390 |
| 1391 // auxiliary function (from old dllib.js) | |
| 652 | 1392 isFullArea = function(area) { |
| 1393 return (area.width === 1.0) && (area.height === 1.0); | |
| 648 | 1394 }; |
| 1395 | |
| 634 | 1396 // auxiliary function (from Douglas Crockford, A.10) |
| 1397 var isNumber = function isNumber(value) { | |
| 703 | 1398 return typeof value === 'number' && isFinite(value); |
| 634 | 1399 }; |
| 648 | 1400 |
| 624 | 1401 // auxiliary function to crop senseless precision |
| 1402 var cropFloat = function (x) { | |
| 630 | 1403 return parseInt(10000 * x, 10) / 10000; |
| 624 | 1404 }; |
| 648 | 1405 |
| 685 | 1406 // fallback for console.log calls |
| 1407 if (customConsole) { | |
| 1408 var logFunction = function(type) { | |
| 1409 return function(){ | |
| 1410 var $debug = $('#debug'); // debug div | |
| 1411 if (!$debug) return; | |
| 1412 var args = Array.prototype.slice.call(arguments); | |
| 1413 var argtext = args.join(' '); | |
| 1414 var $logDiv = $('<div/>'); | |
| 1415 $logDiv.addClass(type); | |
| 1416 $logDiv.text(argtext); | |
| 1417 $debug.append($logDiv); | |
| 1418 }; | |
| 1419 }; | |
| 1420 console.log = logFunction('_log'); | |
| 1421 console.debug = logFunction('_debug'); | |
| 1422 console.error = logFunction('_error'); | |
|
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1423 } |
| 685 | 1424 |
| 598 | 1425 // hook plugin into jquery |
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1426 $.fn.digilib = function(action) { |
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1427 if (actions[action]) { |
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1428 // call action on this with the remaining arguments (inserting data as first argument) |
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1429 var $elem = $(this); |
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1430 var data = $elem.data('digilib'); |
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1431 var args = Array.prototype.slice.call(arguments, 1); |
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1432 args.unshift(data); |
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1433 return actions[action].apply(this, args); |
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1434 } else if (typeof(action) === 'object' || !action) { |
| 627 | 1435 // call init on this |
|
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1436 return actions.init.apply(this, arguments); |
| 598 | 1437 } else { |
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1438 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1439 } |
| 598 | 1440 }; |
| 685 | 1441 |
| 597 | 1442 })(jQuery); |