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annotate client/digitallibrary/jquery/jquery.digilib.js @ 759:16a16ca5f651 stream
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author | robcast |
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date | Tue, 08 Feb 2011 22:49:44 +0100 |
parents | 4c0cc97a6399 |
children | f0be4432f515 |
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 /** |
604 | 21 * digilib jQuery plugin |
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22 **/ |
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23 |
655 | 24 |
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25 /* jslint browser: true, debug: true, forin: true |
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26 */ |
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27 |
636 | 28 // fallback for console.log calls |
29 if (typeof(console) === 'undefined') { | |
30 var console = { | |
692 | 31 log : function(){}, |
32 debug : function(){}, | |
33 error : function(){} | |
34 }; | |
35 var customConsole = true; | |
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36 } |
604 | 37 |
38 (function($) { | |
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39 var buttons = { |
610 | 40 reference : { |
689 | 41 onclick : "reference", |
610 | 42 tooltip : "get a reference URL", |
43 img : "reference.png" | |
44 }, | |
45 zoomin : { | |
643 | 46 onclick : ["zoomBy", 1.4], |
610 | 47 tooltip : "zoom in", |
48 img : "zoom-in.png" | |
49 }, | |
50 zoomout : { | |
643 | 51 onclick : ["zoomBy", 0.7], |
610 | 52 tooltip : "zoom out", |
53 img : "zoom-out.png" | |
54 }, | |
55 zoomarea : { | |
654 | 56 onclick : "zoomArea", |
610 | 57 tooltip : "zoom area", |
58 img : "zoom-area.png" | |
59 }, | |
60 zoomfull : { | |
650 | 61 onclick : "zoomFull", |
610 | 62 tooltip : "view the whole image", |
63 img : "zoom-full.png" | |
64 }, | |
65 pagewidth : { | |
650 | 66 onclick : ["zoomFull", "width"], |
610 | 67 tooltip : "page width", |
68 img : "pagewidth.png" | |
69 }, | |
70 back : { | |
623 | 71 onclick : ["gotoPage", "-1"], |
610 | 72 tooltip : "goto previous image", |
73 img : "back.png" | |
74 }, | |
75 fwd : { | |
623 | 76 onclick : ["gotoPage", "+1"], |
610 | 77 tooltip : "goto next image", |
78 img : "fwd.png" | |
79 }, | |
80 page : { | |
716 | 81 onclick : "gotoPage", |
82 tooltip : "goto image number", | |
610 | 83 img : "page.png" |
84 }, | |
85 bird : { | |
635 | 86 onclick : "showBirdDiv", |
610 | 87 tooltip : "show bird's eye view", |
88 img : "birds-eye.png" | |
89 }, | |
90 help : { | |
635 | 91 onclick : "showAboutDiv", |
610 | 92 tooltip : "about Digilib", |
93 img : "help.png" | |
94 }, | |
95 reset : { | |
688 | 96 onclick : "reset", |
610 | 97 tooltip : "reset image", |
98 img : "reset.png" | |
99 }, | |
100 mark : { | |
647 | 101 onclick : "setMark", |
610 | 102 tooltip : "set a mark", |
103 img : "mark.png" | |
104 }, | |
105 delmark : { | |
650 | 106 onclick : "removeMark", |
610 | 107 tooltip : "delete the last mark", |
108 img : "delmark.png" | |
109 }, | |
110 hmir : { | |
661 | 111 onclick : ["mirror", "h"], |
610 | 112 tooltip : "mirror horizontally", |
113 img : "mirror-horizontal.png" | |
114 }, | |
115 vmir : { | |
661 | 116 onclick : ["mirror", "v"], |
610 | 117 tooltip : "mirror vertically", |
118 img : "mirror-vertical.png" | |
119 }, | |
120 rot : { | |
663 | 121 onclick : "rotate", |
610 | 122 tooltip : "rotate image", |
123 img : "rotate.png" | |
124 }, | |
125 brgt : { | |
663 | 126 onclick : "brightness", |
610 | 127 tooltip : "set brightness", |
128 img : "brightness.png" | |
129 }, | |
130 cont : { | |
663 | 131 onclick : "contrast", |
610 | 132 tooltip : "set contrast", |
133 img : "contrast.png" | |
134 }, | |
135 rgb : { | |
136 onclick : "javascript:setParamWin('rgb', '...')", | |
137 tooltip : "set rgb values", | |
138 img : "rgb.png" | |
139 }, | |
140 quality : { | |
748 | 141 onclick : "setQuality", |
610 | 142 tooltip : "set image quality", |
143 img : "quality.png" | |
144 }, | |
145 size : { | |
146 onclick : "javascript:toggleSizeMenu()", | |
147 tooltip : "set page size", | |
148 img : "size.png" | |
149 }, | |
150 calibrationx : { | |
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151 onclick : "calibrate", |
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152 tooltip : "calibrate screen resolution", |
610 | 153 img : "calibration-x.png" |
154 }, | |
155 scale : { | |
156 onclick : "javascript:toggleScaleMenu()", | |
157 tooltip : "change image scale", | |
158 img : "original-size.png" | |
159 }, | |
699 | 160 toggleoptions : { |
748 | 161 onclick : "moreButtons", |
699 | 162 tooltip : "more options", |
163 img : "options.png" | |
164 }, | |
690 | 165 moreoptions : { |
748 | 166 onclick : ["moreButtons", "+1"], |
690 | 167 tooltip : "more options", |
168 img : "options.png" | |
169 }, | |
170 lessoptions : { | |
748 | 171 onclick : ["moreButtons", "-1"], |
690 | 172 tooltip : "less options", |
610 | 173 img : "options.png" |
174 }, | |
175 SEP : { | |
176 img : "sep.png" | |
177 } | |
178 }; | |
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179 |
605 | 180 var defaults = { |
616 | 181 // version of this script |
635 | 182 'version' : 'jquery.digilib.js 0.9', |
616 | 183 // logo url |
184 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 185 // homepage url (behind logo) |
186 'homeUrl' : 'http://digilib.berlios.de', | |
744 | 187 // base URL to digilib viewer (for reference URLs) |
188 'digilibBaseUrl' : null, | |
610 | 189 // base URL to Scaler servlet |
652 | 190 'scalerBaseUrl' : null, |
610 | 191 // list of Scaler parameters |
627 | 192 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
193 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
194 // Scaler parameter defaults | |
643 | 195 'pn' : 1, |
627 | 196 'ww' : 1.0, |
197 'wh' : 1.0, | |
198 'wx' : 0.0, | |
199 'wy' : 0.0, | |
200 'ws' : 1.0, | |
643 | 201 'mo' : '', |
202 'rot' : 0, | |
203 'cont' : 0, | |
204 'brgt' : 0, | |
205 'rgbm' : '0/0/0', | |
206 'rgba' : '0/0/0', | |
207 'ddpi' : null, | |
208 'ddpix' : null, | |
209 'ddpiy' : null, | |
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210 // list of digilib parameters |
650 | 211 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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212 // digilib parameter defaults |
643 | 213 'mk' : '', |
650 | 214 'clop' : '', |
643 | 215 // mode of operation: |
216 // fullscreen = take parameters from page URL, keep state in page URL | |
217 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 218 'interactionMode' : 'fullscreen', |
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219 // buttons |
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220 'buttons' : buttons, |
668 | 221 // defaults for digilib buttons |
665 | 222 'buttonSettings' : { |
223 'fullscreen' : { | |
668 | 224 // path to button images (must end with a slash) |
665 | 225 'imagePath' : 'img/fullscreen/', |
721 | 226 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","help","reset","toggleoptions"], |
227 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","toggleoptions"], | |
682 | 228 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 229 }, |
230 'embedded' : { | |
231 'imagePath' : 'img/embedded/16/', | |
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232 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","bird","help","reset","toggleoptions"], |
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233 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","toggleoptions"], |
682 | 234 'buttonSets' : ['standardSet', 'specialSet'] |
665 | 235 } |
697 | 236 }, |
237 // number of visible button groups | |
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238 'visibleButtonSets' : 1, |
616 | 239 // is birdView shown? |
240 'isBirdDivVisible' : false, | |
668 | 241 // dimensions of bird's eye div |
674 | 242 'birdDivWidth' : 200, |
243 'birdDivHeight' : 200, | |
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244 // parameters used by bird's eye div |
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245 'birdDivParams' : ['fn','pn','dw','dh'], |
668 | 246 // style of the zoom area indicator in the bird's eye div |
659 | 247 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 248 // style of zoom area "rubber band" |
249 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 250 // is the "about" window shown? |
741 | 251 'isAboutDivVisible' : false, |
252 // maximum width of background image for drag-scroll | |
253 'maxBgSize' : 10000 | |
616 | 254 |
610 | 255 }; |
655 | 256 |
608 | 257 // affine geometry classes |
258 var geom = dlGeometry(); | |
655 | 259 |
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260 var FULL_AREA = geom.rectangle(0, 0, 1, 1); |
655 | 261 |
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262 var actions = { |
668 | 263 // init: digilib initialization |
264 init : function(options) { | |
265 // settings for this digilib instance are merged from defaults and options | |
266 var settings = $.extend({}, defaults, options); | |
267 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
268 var queryParams = {}; | |
269 if (isFullscreen) { | |
270 queryParams = parseQueryParams(); | |
271 // check scalerBaseUrl | |
272 if (settings.scalerBaseUrl == null) { | |
273 // try the host this came from | |
274 var h = window.location.host; | |
275 if (window.location.host) { | |
276 var url = window.location.href; | |
277 // assume the page lives in [webapp]/jquery/ | |
278 var pos = url.indexOf('jquery/'); | |
279 if (pos > 0) { | |
280 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 281 } |
282 } | |
636 | 283 } |
668 | 284 } |
285 return this.each(function() { | |
286 var $elem = $(this); | |
287 var data = $elem.data('digilib'); | |
688 | 288 var params, elemSettings; |
668 | 289 // if the plugin hasn't been initialized yet |
290 if (!data) { | |
291 // merge query parameters | |
292 if (isFullscreen) { | |
688 | 293 params = queryParams; |
668 | 294 } else { |
688 | 295 params = parseImgParams($elem); |
727 | 296 if (jQuery.cookie) { |
297 // retrieve params from cookie | |
298 var ck = "digilib-embed:fn:" + escape(params.fn) + ":pn:" + (params.pn || '1'); | |
299 var cs = jQuery.cookie(ck); | |
300 console.debug("get cookie=", ck, " value=", cs); | |
301 if (cs) { | |
302 var cp = parseQueryString(cs); | |
728 | 303 // ignore fn and pn from cookie TODO: should we keep pn? |
304 delete cp.fn; | |
305 delete cp.pn; | |
306 jQuery.extend(params, cp); | |
727 | 307 } |
308 } | |
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309 } |
668 | 310 // store $(this) element in the settings |
728 | 311 elemSettings = jQuery.extend({}, settings, params); |
697 | 312 data = { |
668 | 313 $elem : $elem, |
314 settings : elemSettings, | |
688 | 315 queryParams : params |
668 | 316 }; |
317 // store in data element | |
318 $elem.data('digilib', data); | |
319 } | |
320 unpackParams(data); | |
744 | 321 // check if browser knows *background-size |
741 | 322 for (var bs in {'':1, '-moz-':1, '-webkit-':1, '-o-':1}) { |
323 if ($elem.css(bs+'background-size')) { | |
324 data.hasBgSize = true; | |
325 data.bgSizeName = bs+'background-size'; | |
326 break; | |
327 } | |
328 } | |
744 | 329 // check digilib base URL |
330 if (elemSettings.digilibBaseUrl == null) { | |
331 if (isFullscreen) { | |
332 // take current host | |
333 var url = window.location.toString(); | |
334 var pos = url.indexOf('?'); | |
335 elemSettings.digilibBaseUrl = url.substring(0, pos); | |
336 } else { | |
337 var url = elemSettings.scalerBaseUrl; | |
338 if (url) { | |
339 // build it from scaler URL | |
340 var bp = url.indexOf('/servlet/Scaler'); | |
341 elemSettings.digilibBaseUrl = url.substring(0, bp) + '/digilib.jsp'; | |
342 } | |
343 } | |
344 } | |
682 | 345 // create HTML structure for scaler |
668 | 346 setupScalerDiv(data); |
697 | 347 // add buttons |
348 for (var i = 0; i < elemSettings.visibleButtonSets; ++i) { | |
349 showButtons(data, true, i); | |
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350 } |
668 | 351 // bird's eye view creation |
710 | 352 if (elemSettings.isBirdDivVisible) { |
638 | 353 setupBirdDiv(data); |
723 | 354 data.$birdDiv.show(); |
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355 } |
668 | 356 // about window creation - TODO: could be deferred? restrict to only one item? |
357 setupAboutDiv(data); | |
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358 // drag zoom area around in scaler div |
755 | 359 // setupZoomDrag(data); // is done in scalerImgLoadedHandler() |
668 | 360 }); |
361 }, | |
362 | |
363 // destroy: clean up digilib | |
364 destroy : function(data) { | |
365 return this.each(function(){ | |
366 var $elem = $(this); | |
367 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
368 data.digilib.remove(); | |
369 $elem.removeData('digilib'); | |
370 }); | |
371 }, | |
372 | |
373 // show or hide the 'about' window | |
374 showAboutDiv : function(data, show) { | |
375 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
376 }, | |
655 | 377 |
668 | 378 // event handler: toggles the visibility of the bird's eye window |
379 showBirdDiv : function (data, show) { | |
726 | 380 var settings = data.settings; |
668 | 381 if (data.$birdDiv == null) { |
382 // no bird div -> create | |
383 setupBirdDiv(data); | |
384 } | |
726 | 385 settings.isBirdDivVisible = showDiv(settings.isBirdDivVisible, data.$birdDiv, show); |
386 updateBirdDiv(data); | |
723 | 387 storeOptions(data); |
388 // data.$birdImg.triggerHandler('load'); // TODO: we shouldn't do that | |
668 | 389 }, |
390 | |
391 // goto given page nr (+/-: relative) | |
392 gotoPage : function (data, pageNr) { | |
393 var settings = data.settings; | |
394 var oldpn = settings.pn; | |
716 | 395 if (pageNr == null) { |
396 pageNr = window.prompt("Goto page number", oldpn); | |
397 } | |
668 | 398 var pn = setNumValue(settings, "pn", pageNr); |
399 if (pn == null) return false; // nothing happened | |
400 if (pn < 1) { | |
401 alert("no such page (page number too low)"); | |
402 settings.pn = oldpn; | |
403 return false; | |
404 } | |
405 if (settings.pt) { | |
406 if (pn > settings.pt) { | |
407 alert("no such page (page number too high)"); | |
623 | 408 settings.pn = oldpn; |
409 return false; | |
634 | 410 } |
668 | 411 } |
412 // reset mk and others(?) | |
413 data.marks = []; | |
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414 data.zoomArea = FULL_AREA; |
668 | 415 // then reload |
416 redisplay(data); | |
417 }, | |
654 | 418 |
668 | 419 // zoom by a given factor |
420 zoomBy : function (data, factor) { | |
421 zoomBy(data, factor); | |
422 }, | |
647 | 423 |
668 | 424 // zoom interactively |
425 zoomArea : function (data) { | |
426 zoomArea(data); | |
427 }, | |
650 | 428 |
668 | 429 // zoom out to full page |
430 zoomFull : function (data, mode) { | |
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431 data.zoomArea = FULL_AREA; |
668 | 432 if (mode === 'width') { |
433 data.dlOpts.fitwidth = 1; | |
434 delete data.dlOpts.fitheight; | |
435 } else if (mode === 'height') { | |
436 data.dlOpts.fitheight = 1; | |
437 delete data.dlOpts.fitwidth; | |
438 } else { | |
439 delete data.dlOpts.fitwidth; | |
440 delete data.dlOpts.fitheight; | |
441 } | |
442 redisplay(data); | |
443 }, | |
444 | |
445 // set a mark by clicking (or giving a position) | |
446 setMark : function (data, mpos) { | |
447 if (mpos == null) { | |
448 // interactive | |
449 setMark(data); | |
450 } else { | |
451 // use position | |
452 data.marks.push(pos); | |
663 | 453 redisplay(data); |
604 | 454 } |
668 | 455 }, |
456 | |
457 // remove the last mark | |
458 removeMark : function (data) { | |
459 data.marks.pop(); | |
460 redisplay(data); | |
461 }, | |
462 | |
463 // mirror the image | |
464 mirror : function (data, mode) { | |
465 var flags = data.scalerFlags; | |
466 if (mode === 'h') { | |
467 if (flags.hmir) { | |
468 delete flags.hmir; | |
469 } else { | |
470 flags.hmir = 1; | |
471 } | |
472 } else { | |
473 if (flags.vmir) { | |
474 delete flags.vmir; | |
475 } else { | |
476 flags.vmir = 1; | |
477 } | |
478 } | |
479 redisplay(data); | |
480 }, | |
650 | 481 |
668 | 482 // rotate the image |
483 rotate : function (data, angle) { | |
484 var rot = data.settings.rot; | |
485 if (angle == null) { | |
486 angle = window.prompt("Rotation angle:", rot); | |
487 } | |
488 data.settings.rot = angle; | |
489 redisplay(data); | |
490 }, | |
491 | |
492 // change brightness | |
493 brightness : function (data, factor) { | |
494 var brgt = data.settings.brgt; | |
495 if (factor == null) { | |
496 factor = window.prompt("Brightness (-255..255)", brgt); | |
497 } | |
498 data.settings.brgt = factor; | |
499 redisplay(data); | |
500 }, | |
501 | |
502 // change contrast | |
503 contrast : function (data, factor) { | |
504 var cont = data.settings.cont; | |
505 if (factor == null) { | |
506 factor = window.prompt("Contrast (-8, 8)", cont); | |
507 } | |
508 data.settings.cont = factor; | |
509 redisplay(data); | |
688 | 510 }, |
710 | 511 |
690 | 512 // display more (or less) button sets |
748 | 513 moreButtons : function (data, more) { |
696 | 514 var settings = data.settings; |
699 | 515 if (more == null) { |
703 | 516 // toggle more or less (only works for 2 sets) |
699 | 517 var maxbtns = settings.buttonSettings[settings.interactionMode].buttonSets.length; |
518 if (settings.visibleButtonSets >= maxbtns) { | |
519 more = '-1'; | |
520 } else { | |
521 more = '+1'; | |
522 } | |
523 } | |
690 | 524 if (more === '-1') { |
525 // remove set | |
697 | 526 var setIdx = settings.visibleButtonSets - 1; |
527 if (showButtons(data, false, setIdx, true)) { | |
528 settings.visibleButtonSets--; | |
529 } | |
690 | 530 } else { |
531 // add set | |
697 | 532 var setIdx = settings.visibleButtonSets; |
533 if (showButtons(data, true, setIdx, true)) { | |
534 settings.visibleButtonSets++; | |
690 | 535 } |
536 } | |
723 | 537 // persist setting |
538 storeOptions(data); | |
691 | 539 }, |
688 | 540 |
703 | 541 // reset image parameters to defaults |
688 | 542 reset : function (data) { |
543 var settings = data.settings; | |
544 var paramNames = settings.digilibParamNames; | |
545 var params = data.queryParams; | |
546 // delete all digilib parameters | |
547 for (var i = 0; i < paramNames.length; i++) { | |
548 var paramName = paramNames[i]; | |
549 delete settings[paramName]; | |
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550 } |
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551 settings.fn = params.fn || ''; // no default defined |
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552 settings.pn = params.pn || defaults.pn; |
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553 settings.dw = params.dw; |
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554 settings.dh = params.dh; |
709 | 555 settings.isBirdDivVisible = false; |
556 settings.visibleButtonSets = 1; | |
735
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557 // resets zoomArea, marks, scalerflags |
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558 data.zoomArea = FULL_AREA; |
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559 data.marks = []; |
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560 data.scalerFlags = {}; |
712 | 561 delete data.dlOpts.fitwidth; |
562 delete data.dlOpts.fitheight; | |
688 | 563 redisplay(data); |
689 | 564 }, |
565 | |
703 | 566 // presents a reference url (returns value if noprompt) |
567 reference : function (data, noprompt) { | |
689 | 568 var settings = data.settings; |
744 | 569 var url = getDigilibUrl(data); |
703 | 570 if (noprompt == null) { |
571 window.prompt("URL reference to the current view", url); | |
572 } | |
573 return url; | |
574 }, | |
710 | 575 |
703 | 576 // set image quality |
748 | 577 setQuality : function (data, qual) { |
703 | 578 var oldq = getQuality(data); |
579 if (qual == null) { | |
580 qual = window.prompt("Image quality (0..2)", oldq); | |
581 } | |
582 qual = parseInt(qual, 10); | |
583 if (qual >= 0 && qual <= 2) { | |
584 setQuality(data, qual); | |
585 redisplay(data); | |
586 } | |
754
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587 }, |
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588 |
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589 // calibrate (only faking) |
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590 calibrate : function (data) { |
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591 getImageInfo(data); |
668 | 592 } |
605 | 593 }; |
604 | 594 |
608 | 595 // returns parameters from page url |
607 | 596 var parseQueryParams = function() { |
636 | 597 return parseQueryString(window.location.search.slice(1)); |
598 }; | |
655 | 599 |
636 | 600 // returns parameters from embedded img-element |
607 | 601 var parseImgParams = function($elem) { |
613
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602 var src = $elem.find('img').first().attr('src'); |
710 | 603 if (!src) return null; |
607 | 604 var pos = src.indexOf('?'); |
605 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
606 var scalerUrl = src.substring(0, pos); | |
627 | 607 var params = parseQueryString(query); |
608 params.scalerBaseUrl = scalerUrl; | |
609 return params; | |
636 | 610 }; |
607 | 611 |
608 | 612 // parses query parameter string into parameter object |
607 | 613 var parseQueryString = function(query) { |
701 | 614 var params = {}; |
615 if (query == null) return params; | |
607 | 616 var pairs = query.split("&"); |
636 | 617 //var keys = []; |
607 | 618 for (var i = 0; i < pairs.length; i++) { |
619 var pair = pairs[i].split("="); | |
620 if (pair.length === 2) { | |
627 | 621 params[pair[0]] = pair[1]; |
636 | 622 //keys.push(pair[0]); |
634 | 623 } |
636 | 624 } |
627 | 625 return params; |
636 | 626 }; |
668 | 627 |
643 | 628 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
629 var getParamString = function (settings, keys, defaults) { | |
615 | 630 var paramString = ''; |
650 | 631 var nx = false; |
615 | 632 for (i = 0; i < keys.length; ++i) { |
633 var key = keys[i]; | |
663 | 634 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 635 // first param gets no '&' |
650 | 636 if (nx) { |
637 paramString += '&'; | |
638 } else { | |
639 nx = true; | |
640 } | |
615 | 641 // add parm=val |
642 paramString += key + '=' + settings[key]; | |
643 | 643 } |
615 | 644 } |
645 return paramString; | |
631 | 646 }; |
647 | |
636 | 648 // returns URL and query string for Scaler |
649 var getScalerUrl = function (data) { | |
741 | 650 packParams(data); |
653 | 651 var settings = data.settings; |
652 | 652 if (settings.scalerBaseUrl == null) { |
653 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
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654 } |
636 | 655 var keys = settings.scalerParamNames; |
643 | 656 var queryString = getParamString(settings, keys, defaults); |
636 | 657 var url = settings.scalerBaseUrl + '?' + queryString; |
658 return url; | |
659 }; | |
660 | |
741 | 661 // returns URL for bird's eye view image |
743 | 662 var getBirdImgUrl = function (data, moreParams) { |
741 | 663 var settings = data.settings; |
664 var birdDivOptions = { | |
665 dw : settings.birdDivWidth, | |
666 dh : settings.birdDivHeight | |
667 }; | |
743 | 668 var birdSettings = jQuery.extend({}, settings, birdDivOptions); |
741 | 669 // use only the relevant parameters |
743 | 670 if (moreParams == null) { |
671 var params = getParamString(birdSettings, settings.birdDivParams, defaults); | |
672 } else { | |
673 var params = getParamString(birdSettings, | |
674 settings.birdDivParams.concat(moreParams), defaults); | |
675 } | |
676 var url = settings.scalerBaseUrl + '?' + params; | |
741 | 677 return url; |
678 }; | |
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679 |
636 | 680 // returns URL and query string for current digilib |
644
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681 var getDigilibUrl = function (data) { |
643 | 682 packParams(data); |
636 | 683 var settings = data.settings; |
644
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684 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
744 | 685 return settings.digilibBaseUrl + '?' + queryString; |
636 | 686 }; |
687 | |
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688 // gets image information from digilib server via HTTP and calls complete |
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689 var getImageInfo = function (data, complete) { |
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690 var settings = data.settings; |
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691 var p = settings.scalerBaseUrl.indexOf('/servlet/Scaler'); |
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692 var url = settings.scalerBaseUrl.substring(0, p) + '/ImgInfo-json.jsp'; |
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693 url += '?' + getParamString(settings, ['fn', 'pn'], defaults); |
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694 jQuery.getJSON(url, function (json) { |
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695 console.debug("got json data=", json); |
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696 data.imgInfo = json; |
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697 if (complete != null) { |
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698 complete.call(this, data, json); |
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699 } |
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700 }); |
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701 }; |
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702 |
655 | 703 // processes some parameters into objects and stuff |
631 | 704 var unpackParams = function (data) { |
705 var settings = data.settings; | |
636 | 706 // zoom area |
631 | 707 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 708 data.zoomArea = zoomArea; |
636 | 709 // marks |
631 | 710 var marks = []; |
650 | 711 if (settings.mk) { |
712 var mk = settings.mk; | |
713 if (mk.indexOf(";") >= 0) { | |
714 var pa = mk.split(";"); // old format with ";" | |
715 } else { | |
716 var pa = mk.split(","); // new format | |
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717 } |
650 | 718 for (var i = 0; i < pa.length ; i++) { |
719 var pos = pa[i].split("/"); | |
720 if (pos.length > 1) { | |
721 marks.push(geom.position(pos[0], pos[1])); | |
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722 } |
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723 } |
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724 } |
643 | 725 data.marks = marks; |
650 | 726 // mo (Scaler flags) |
727 var flags = {}; | |
728 if (settings.mo) { | |
729 var pa = settings.mo.split(","); | |
730 for (var i = 0; i < pa.length ; i++) { | |
731 flags[pa[i]] = pa[i]; | |
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732 } |
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733 } |
650 | 734 data.scalerFlags = flags; |
723 | 735 retrieveOptions(data); |
655 | 736 }; |
737 | |
631 | 738 // put objects back into parameters |
739 var packParams = function (data) { | |
740 var settings = data.settings; | |
636 | 741 // zoom area |
643 | 742 if (data.zoomArea) { |
647 | 743 settings.wx = cropFloat(data.zoomArea.x); |
744 settings.wy = cropFloat(data.zoomArea.y); | |
745 settings.ww = cropFloat(data.zoomArea.width); | |
746 settings.wh = cropFloat(data.zoomArea.height); | |
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747 } |
636 | 748 // marks |
643 | 749 if (data.marks) { |
650 | 750 settings.mk = ''; |
643 | 751 for (var i = 0; i < data.marks.length; i++) { |
650 | 752 if (i) { |
753 settings.mk += ','; | |
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754 } |
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755 settings.mk += cropFloat(data.marks[i].x).toString() + |
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756 '/' + cropFloat(data.marks[i].y).toString(); |
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757 } |
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758 } |
650 | 759 // Scaler flags |
760 if (data.scalerFlags) { | |
761 var mo = ''; | |
762 for (var f in data.scalerFlags) { | |
763 if (mo) { | |
764 mo += ','; | |
765 } | |
766 mo += f; | |
767 } | |
768 settings.mo = mo; | |
769 } | |
710 | 770 // user interface options |
723 | 771 storeOptions(data); |
709 | 772 }; |
688 | 773 |
723 | 774 var storeOptions = function (data) { |
701 | 775 // save digilib options in cookie |
709 | 776 var settings = data.settings; |
777 if (data.dlOpts) { | |
778 // save digilib settings in options | |
779 data.dlOpts.birdview = settings.isBirdDivVisible ? 1 : 0; | |
780 data.dlOpts.buttons = settings.visibleButtonSets; | |
781 var clop = ''; | |
782 for (var o in data.dlOpts) { | |
783 if (clop) { | |
784 clop += '&'; | |
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785 } |
709 | 786 clop += o + '=' + data.dlOpts[o]; |
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787 } |
709 | 788 if (jQuery.cookie) { |
789 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
790 console.debug("set cookie=", ck, " value=", clop); | |
791 jQuery.cookie(ck, clop); | |
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792 } |
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793 } |
727 | 794 if (settings.interactionMode !== 'fullscreen' && jQuery.cookie) { |
795 // store normal parameters in cookie for embedded mode | |
796 var qs = getParamString(settings, settings.digilibParamNames, defaults); | |
797 var ck = "digilib-embed:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
798 console.debug("set cookie=", ck, " value=", qs); | |
799 jQuery.cookie(ck, qs); | |
800 } | |
631 | 801 }; |
655 | 802 |
723 | 803 var retrieveOptions = function (data) { |
709 | 804 // clop (digilib options) |
805 var opts = {}; | |
806 var settings = data.settings; | |
807 if (jQuery.cookie) { | |
808 // read from cookie | |
809 var ck = "digilib:fn:" + escape(settings.fn) + ":pn:" + settings.pn; | |
810 var cp = jQuery.cookie(ck); | |
811 console.debug("get cookie=", ck, " value=", cp); | |
812 // in query string format | |
813 opts = parseQueryString(cp); | |
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814 } |
709 | 815 data.dlOpts = opts; |
816 // birdview option | |
817 if (opts.birdview != null) { | |
818 settings.isBirdDivVisible = opts.birdview === '1'; | |
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819 } |
709 | 820 // visible button sets |
821 if (opts.buttons != null) { | |
822 settings.visibleButtonSets = opts.buttons; | |
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823 } |
711 | 824 }; |
709 | 825 |
622 | 826 // (re)load the img from a new scaler URL |
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827 var redisplay = function (data) { |
636 | 828 var settings = data.settings; |
829 if (settings.interactionMode === 'fullscreen') { | |
830 // update location.href (browser URL) in fullscreen mode | |
644
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831 var url = getDigilibUrl(data); |
636 | 832 var history = window.history; |
833 if (typeof(history.pushState) === 'function') { | |
834 console.debug("we could modify history, but we don't..."); | |
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835 } |
636 | 836 window.location = url; |
837 } else { | |
838 // embedded mode -- just change img src | |
839 var url = getScalerUrl(data); | |
840 data.$img.attr('src', url); | |
726 | 841 // redisplay bird img |
842 updateBirdDiv(data); | |
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843 } |
622 | 844 }; |
845 | |
662 | 846 // returns maximum size for scaler img in fullscreen mode |
847 var getFullscreenImgSize = function($elem) { | |
848 var $win = $(window); | |
849 var winH = $win.height(); | |
850 var winW = $win.width(); | |
851 // TODO: account for borders? | |
852 return geom.size(winW, winH); | |
853 }; | |
854 | |
608 | 855 // creates HTML structure for digilib in elem |
627 | 856 var setupScalerDiv = function (data) { |
857 var settings = data.settings; | |
647 | 858 var $elem = data.$elem; |
725 | 859 $elem.addClass('digilib'); |
728 | 860 var $img; |
861 var scalerUrl; | |
608 | 862 if (settings.interactionMode === 'fullscreen') { |
728 | 863 // fullscreen |
725 | 864 $elem.addClass('dl_fullscreen'); |
609 | 865 var imgSize = getFullscreenImgSize($elem); |
650 | 866 // fitwidth/height omits destination height/width |
728 | 867 if (data.dlOpts.fitheight == null) { |
650 | 868 settings.dw = imgSize.width; |
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869 } |
728 | 870 if (data.dlOpts.fitwidth == null) { |
650 | 871 settings.dh = imgSize.height; |
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872 } |
686 | 873 scalerUrl = getScalerUrl(data); |
728 | 874 $img = $('<img/>'); |
609 | 875 } else { |
728 | 876 // embedded mode -- try to keep img tag |
725 | 877 $elem.addClass('dl_embedded'); |
728 | 878 scalerUrl = getScalerUrl(data); |
623 | 879 $img = $elem.find('img'); |
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880 if ($img.length > 0) { |
728 | 881 oldUrl = $img.attr('src'); |
882 if (oldUrl === scalerUrl) { | |
883 console.debug("img detach:", $img); | |
884 $img.detach(); | |
885 } else { | |
886 $img = $('<img/>'); | |
887 } | |
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888 } else { |
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889 $img = $('<img/>'); |
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890 } |
608 | 891 } |
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892 // create new html |
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893 $elem.empty(); // TODO: should we keep stuff for customization? |
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894 var $scaler = $('<div class="scaler"/>'); |
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895 $elem.append($scaler); |
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896 $scaler.append($img); |
622 | 897 $img.addClass('pic'); |
649 | 898 data.$scaler = $scaler; |
636 | 899 data.$img = $img; |
687 | 900 // setup image load handler before setting the src attribute (IE bug) |
901 $img.load(scalerImgLoadedHandler(data)); | |
902 $img.attr('src', scalerUrl); | |
608 | 903 }; |
615 | 904 |
610 | 905 // creates HTML structure for buttons in elem |
697 | 906 var createButtons = function (data, buttonSetIdx) { |
647 | 907 var $elem = data.$elem; |
628
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908 var settings = data.settings; |
665 | 909 var mode = settings.interactionMode; |
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910 var buttonSettings = settings.buttonSettings[mode]; |
682 | 911 var buttonGroup = buttonSettings.buttonSets[buttonSetIdx]; |
690 | 912 if (buttonGroup == null) { |
913 // no buttons here | |
914 return; | |
915 } | |
916 var $buttonsDiv = $('<div class="buttons"/>'); | |
682 | 917 var buttonNames = buttonSettings[buttonGroup]; |
918 for (var i = 0; i < buttonNames.length; i++) { | |
919 var buttonName = buttonNames[i]; | |
920 var buttonConfig = settings.buttons[buttonName]; | |
665 | 921 // construct the button html |
922 var $button = $('<div class="button"></div>'); | |
923 var $a = $('<a/>'); | |
924 var $img = $('<img class="button"/>'); | |
925 $buttonsDiv.append($button); | |
926 $button.append($a); | |
927 $a.append($img); | |
928 // add attributes and bindings | |
929 $button.attr('title', buttonConfig.tooltip); | |
682 | 930 $button.addClass('button-' + buttonName); |
665 | 931 // create handler for the buttons |
932 $a.bind('click.digilib', (function () { | |
933 // we create a new closure to capture the value of action | |
934 var action = buttonConfig.onclick; | |
935 if ($.isArray(action)) { | |
936 // the handler function calls digilib with action and parameters | |
937 return function (evt) { | |
938 console.debug('click action=', action, ' evt=', evt); | |
939 $elem.digilib.apply($elem, action); | |
940 return false; | |
941 }; | |
942 } else { | |
943 // the handler function calls digilib with action | |
944 return function (evt) { | |
945 console.debug('click action=', action, ' evt=', evt); | |
946 $elem.digilib(action); | |
947 return false; | |
948 }; | |
949 } | |
950 })()); | |
951 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
690 | 952 } |
662 | 953 // make buttons div scroll if too large for window |
954 if ($buttonsDiv.height() > $(window).height() - 10) { | |
955 $buttonsDiv.css('position', 'absolute'); | |
956 } | |
697 | 957 // buttons hidden at first |
958 $buttonsDiv.hide(); | |
959 $elem.append($buttonsDiv); | |
682 | 960 if (data.$buttonSets == null) { |
697 | 961 // first button set |
682 | 962 data.$buttonSets = [$buttonsDiv]; |
963 } else { | |
690 | 964 $elem.append($buttonsDiv); |
682 | 965 data.$buttonSets[buttonSetIdx] = $buttonsDiv; |
966 } | |
612 | 967 return $buttonsDiv; |
610 | 968 }; |
615 | 969 |
970 // creates HTML structure for the bird's eye view in elem | |
638 | 971 var setupBirdDiv = function (data) { |
647 | 972 var $elem = data.$elem; |
615 | 973 // the bird's eye div |
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974 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 975 // the detail indicator frame |
726 | 976 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>'); |
615 | 977 // the small image |
978 var $birdImg = $('<img class="birdimg"/>'); | |
723 | 979 data.$birdDiv = $birdDiv; |
980 data.$birdZoom = $birdZoom; | |
981 data.$birdImg = $birdImg; | |
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982 $elem.append($birdDiv); |
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983 $birdDiv.append($birdZoom); |
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984 $birdDiv.append($birdImg); |
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985 $birdZoom.css(data.settings.birdIndicatorStyle); |
723 | 986 var birdUrl = getBirdImgUrl(data); |
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987 $birdImg.load(birdImgLoadedHandler(data)); |
723 | 988 $birdImg.attr('src', birdUrl); |
989 }; | |
990 | |
991 // update bird's eye view | |
992 var updateBirdDiv = function (data) { | |
993 if (!data.settings.isBirdDivVisible) return; | |
994 var $birdImg = data.$birdImg; | |
995 var oldsrc = $birdImg.attr('src'); | |
996 var newsrc = getBirdImgUrl(data); | |
997 if (oldsrc !== newsrc) { | |
998 $birdImg.attr('src', newsrc); | |
999 // onload handler re-renders | |
1000 } else { | |
1001 // re-render | |
1002 renderBirdArea(data); | |
730 | 1003 // enable click and drag |
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1004 setupBirdDrag(data); |
723 | 1005 } |
719
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1006 }; |
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1007 |
625 | 1008 // creates HTML structure for the about view in elem |
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1009 var setupAboutDiv = function (data) { |
647 | 1010 var $elem = data.$elem; |
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1011 var settings = data.settings; |
625 | 1012 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 1013 var $header = $('<p>Digilib Graphic Viewer</p>'); |
1014 var $link = $('<a/>'); | |
1015 var $logo = $('<img class="logo" title="digilib"/>'); | |
1016 var $content = $('<p/>'); | |
1017 $elem.append($aboutDiv); | |
1018 $aboutDiv.append($header); | |
1019 $aboutDiv.append($link); | |
1020 $aboutDiv.append($content); | |
1021 $link.append($logo); | |
1022 $logo.attr('src', settings.logoUrl); | |
635 | 1023 $link.attr('href', settings.homeUrl); |
616 | 1024 $content.text('Version: ' + settings.version); |
635 | 1025 // click hides |
649 | 1026 $aboutDiv.bind('click.digilib', function () { |
646 | 1027 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 1028 return false; |
710 | 1029 }); |
635 | 1030 data.$aboutDiv = $aboutDiv; |
634 | 1031 }; |
1032 | |
635 | 1033 // shows some window e.g. 'about' (toggle visibility if show is null) |
1034 var showDiv = function (isVisible, $div, show) { | |
645 | 1035 if (show == null) { |
635 | 1036 // toggle visibility |
1037 isVisible = !isVisible; | |
1038 } else { | |
1039 // set visibility | |
1040 isVisible = show; | |
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1041 } |
635 | 1042 if (isVisible) { |
1043 $div.fadeIn(); | |
1044 } else { | |
1045 $div.fadeOut(); | |
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1046 } |
635 | 1047 return isVisible; |
634 | 1048 }; |
616 | 1049 |
697 | 1050 // display more (or less) button sets |
1051 var showButtons = function (data, more, setIdx, animated) { | |
711 | 1052 var atime = animated ? 'fast': 0; |
697 | 1053 if (more) { |
1054 // add set | |
1055 var $otherSets = data.$elem.find('div.buttons:visible'); | |
1056 var $set; | |
1057 if (data.$buttonSets && data.$buttonSets[setIdx]) { | |
1058 // set exists | |
1059 $set = data.$buttonSets[setIdx]; | |
1060 } else { | |
1061 $set = createButtons(data, setIdx); | |
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1062 } |
697 | 1063 if ($set == null) return false; |
1064 var btnWidth = $set.width(); | |
1065 // move remaining sets left and show new set | |
711 | 1066 if ($otherSets.length > 0) { |
1067 $otherSets.animate({right : '+='+btnWidth+'px'}, atime, | |
1068 function () {$set.show();}); | |
697 | 1069 } else { |
1070 $set.show(); | |
711 | 1071 } |
697 | 1072 } else { |
1073 // remove set | |
1074 var $set = data.$buttonSets[setIdx]; | |
1075 if ($set == null) return false; | |
1076 var btnWidth = $set.width(); | |
1077 // hide last set | |
1078 $set.hide(); | |
1079 // take remaining sets and move right | |
1080 var $otherSets = data.$elem.find('div.buttons:visible'); | |
711 | 1081 $otherSets.animate({right : '-='+btnWidth+'px'}, atime); |
1082 } | |
697 | 1083 return true; |
1084 }; | |
1085 | |
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1086 // create Transform from area and $img |
675 | 1087 var getImgTrafo = function ($img, area, rot, hmir, vmir) { |
658
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1088 var picrect = geom.rectangle($img); |
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1089 var trafo = geom.transform(); |
675 | 1090 // move zoom area offset to center |
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1091 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
675 | 1092 // scale zoom area size to [1,1] |
658
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1093 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
675 | 1094 // rotate and mirror (around transformed image center i.e. [0.5,0.5]) |
1095 if (rot || hmir || vmir) { | |
1096 // move [0.5,0.5] to center | |
1097 trafo.concat(trafo.getTranslation(geom.position(-0.5, -0.5))); | |
1098 if (hmir) { | |
1099 // mirror about center | |
1100 trafo.concat(trafo.getMirror('y')); | |
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1101 } |
675 | 1102 if (vmir) { |
1103 // mirror about center | |
1104 trafo.concat(trafo.getMirror('x')); | |
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1105 } |
675 | 1106 if (rot) { |
1107 // rotate around center | |
1108 trafo.concat(trafo.getRotation(parseFloat(rot))); | |
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1109 } |
675 | 1110 // move back |
1111 trafo.concat(trafo.getTranslation(geom.position(0.5, 0.5))); | |
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1112 } |
664
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1113 // scale to screen position and size |
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1114 trafo.concat(trafo.getScale(picrect)); |
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1115 trafo.concat(trafo.getTranslation(picrect)); |
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1116 return trafo; |
655 | 1117 }; |
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1118 |
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1119 // returns function for load event of scaler img |
636 | 1120 var scalerImgLoadedHandler = function (data) { |
633 | 1121 return function () { |
723 | 1122 var $img = $(this); |
738 | 1123 var $scaler = data.$scaler; |
627 | 1124 // create Transform from current area and picsize |
675 | 1125 data.imgTrafo = getImgTrafo($img, data.zoomArea, |
1126 data.settings.rot, data.scalerFlags.hmir, data.scalerFlags.vmir); | |
686 | 1127 console.debug("imgTrafo=", data.imgTrafo); |
733 | 1128 // adjust scaler div size |
738 | 1129 var imgRect = geom.rectangle($img); |
733 | 1130 console.debug("imgrect=", imgRect); |
738 | 1131 imgRect.adjustDiv($scaler); |
715 | 1132 // show image in case it was hidden (for example in zoomDrag) |
733 | 1133 $img.css('visibility', 'visible'); |
741 | 1134 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
627 | 1135 // display marks |
633 | 1136 renderMarks(data); |
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1137 // enable drag-to-scroll |
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1138 setupZoomDrag(data); |
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1139 // TODO: digilib.showArrows(); // show arrow overlays for zoom navigation |
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1140 }; |
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1141 }; |
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1142 |
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1143 // returns function for load event of bird's eye view img |
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1144 var birdImgLoadedHandler = function (data) { |
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1145 return function () { |
755 | 1146 var $birdImg = $(this); |
1147 var birdRect = geom.rectangle($birdImg); | |
1148 console.debug("birdImg loaded!", $birdImg, "rect=", birdRect, "data=", data); | |
1149 if (birdRect.width === 0) { | |
1150 // malheureusement IE7 calls load handler when there is no size info yet | |
1151 setTimeout(function () { $birdImg.triggerHandler('load') }, 200); | |
1152 } | |
668 | 1153 // display red indicator around zoomarea |
723 | 1154 renderBirdArea(data); |
1155 // enable click and drag | |
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1156 setupBirdDrag(data); |
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1157 }; |
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1158 }; |
633 | 1159 |
1160 // place marks on the image | |
1161 var renderMarks = function (data) { | |
647 | 1162 var $elem = data.$elem; |
643 | 1163 var marks = data.marks; |
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1164 // clear marks |
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1165 $elem.find('div.mark').remove(); |
633 | 1166 for (var i = 0; i < marks.length; i++) { |
1167 var mark = marks[i]; | |
643 | 1168 if (data.zoomArea.containsPosition(mark)) { |
633 | 1169 var mpos = data.imgTrafo.transform(mark); |
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1170 console.debug("renderMarks: mpos=",mpos); |
633 | 1171 // create mark |
1172 var html = '<div class="mark">'+(i+1)+'</div>'; | |
1173 var $mark = $(html); | |
1174 $elem.append($mark); | |
742
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1175 mpos.adjustDiv($mark); |
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1176 } |
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1177 } |
633 | 1178 }; |
655 | 1179 |
677
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1180 // show zoom area indicator on bird's eye view |
723 | 1181 var renderBirdArea = function (data) { |
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1182 var $birdZoom = data.$birdZoom; |
659 | 1183 var zoomArea = data.zoomArea; |
723 | 1184 var normalSize = isFullArea(zoomArea); |
1185 if (normalSize) { | |
1186 $birdZoom.hide(); | |
1187 return; | |
1188 } else { | |
1189 $birdZoom.show(); | |
1190 } | |
755 | 1191 // create Transform from current area and picsize |
735
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1192 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
738 | 1193 var zoomRect = data.birdTrafo.transform(zoomArea); |
755 | 1194 console.debug("renderBirdArea:", zoomRect, "zoomArea:", zoomArea, "$birdTrafo:", data.birdTrafo); |
741 | 1195 // acount for border width |
1196 zoomRect.addPosition({x : -2, y : -2}); | |
670
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1197 if (data.settings.interactionMode === 'fullscreen') { |
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1198 // no animation for fullscreen |
738 | 1199 zoomRect.adjustDiv($birdZoom); |
723 | 1200 } else { |
1201 // nice animation for embedded mode :-) | |
741 | 1202 // correct offsetParent because animate doesn't use offset |
726 | 1203 var ppos = $birdZoom.offsetParent().offset(); |
738 | 1204 var dest = { |
755 | 1205 left : (zoomRect.x - ppos.left) + 'px', |
1206 top : (zoomRect.y - ppos.top) + 'px', | |
1207 width : zoomRect.width, | |
1208 height : zoomRect.height | |
1209 }; | |
738 | 1210 $birdZoom.animate(dest); |
723 | 1211 } |
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1212 }; |
659 | 1213 |
647 | 1214 // zooms by the given factor |
643 | 1215 var zoomBy = function(data, factor) { |
1216 var area = data.zoomArea; | |
1217 var newarea = area.copy(); | |
1218 // scale | |
1219 newarea.width /= factor; | |
1220 newarea.height /= factor; | |
1221 // and recenter | |
1222 newarea.x -= 0.5 * (newarea.width - area.width); | |
1223 newarea.y -= 0.5 * (newarea.height - area.height); | |
735
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improved some embedded buttons; fixed reset function
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diff
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|
1224 newarea = FULL_AREA.fit(newarea); |
643 | 1225 data.zoomArea = newarea; |
644
ee8ccd84c5f8
reload doesn't take list of changed parameters any more
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diff
changeset
|
1226 redisplay(data); |
643 | 1227 }; |
1228 | |
647 | 1229 // add a mark where clicked |
1230 var setMark = function (data) { | |
649 | 1231 var $scaler = data.$scaler; |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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diff
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|
1232 // unbind other handler |
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1233 $scaler.unbind(".dlZoomDrag"); |
647 | 1234 // start event capturing |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
diff
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|
1235 $scaler.one('mousedown.dlSetMark', function (evt) { |
647 | 1236 // event handler adding a new mark |
742
2b6d3ef57d68
fixed problem with setmark, zoomarea and zoomDrag handlers.
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741
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|
1237 console.log("setmark at=", evt); |
672
7f7536a5b6d9
image transform works now under rotation!!! (at least for multiples of 90deg)
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671
diff
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|
1238 var mpos = geom.position(evt); |
647 | 1239 var pos = data.imgTrafo.invtransform(mpos); |
1240 data.marks.push(pos); | |
1241 redisplay(data); | |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1242 return false; |
647 | 1243 }); |
1244 }; | |
668 | 1245 |
742
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fixed problem with setmark, zoomarea and zoomDrag handlers.
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|
1246 // zoom to the area around two clicked points |
654 | 1247 var zoomArea = function(data) { |
1248 $elem = data.$elem; | |
1249 $scaler = data.$scaler; | |
1250 var pt1, pt2; | |
1251 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
1252 $elem.append($zoomDiv); | |
668 | 1253 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 1254 var picRect = geom.rectangle($scaler); |
1255 // FIX ME: is there a way to query the border width from CSS info? | |
1256 // rect.x -= 2; // account for overlay borders | |
1257 // rect.y -= 2; | |
1258 | |
1259 var zoomStart = function (evt) { | |
1260 pt1 = geom.position(evt); | |
1261 // setup and show zoom div | |
738 | 1262 pt1.adjustDiv($zoomDiv); |
668 | 1263 $zoomDiv.width(0).height(0); |
654 | 1264 $zoomDiv.show(); |
1265 // register events | |
738 | 1266 $elem.bind("mousemove.dlZoomArea", zoomMove); |
1267 $elem.bind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1268 return false; |
1269 }; | |
668 | 1270 |
741 | 1271 // mouse move handler |
1272 var zoomMove = function (evt) { | |
1273 pt2 = geom.position(evt); | |
1274 var rect = geom.rectangle(pt1, pt2); | |
1275 rect.clipTo(picRect); | |
1276 // update zoom div | |
1277 rect.adjustDiv($zoomDiv); | |
1278 return false; | |
1279 }; | |
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1280 |
654 | 1281 // mouseup handler: end moving |
1282 var zoomEnd = function (evt) { | |
1283 pt2 = geom.position(evt); | |
1284 // assume a click and continue if the area is too small | |
1285 var clickRect = geom.rectangle(pt1, pt2); | |
710 | 1286 if (clickRect.getArea() <= 5) return false; |
654 | 1287 // hide zoom div |
1288 $zoomDiv.remove(); | |
1289 // unregister events | |
738 | 1290 $elem.unbind("mousemove.dlZoomArea", zoomMove); |
1291 $elem.unbind("mouseup.dlZoomArea", zoomEnd); | |
654 | 1292 // clip and transform |
1293 clickRect.clipTo(picRect); | |
1294 var area = data.imgTrafo.invtransform(clickRect); | |
1295 data.zoomArea = area; | |
1296 // zoomed is always fit | |
1297 data.settings.ws = 1; | |
738 | 1298 delete data.dlOpts.fitwidth; |
1299 delete data.dlOpts.fitheight; | |
654 | 1300 redisplay(data); |
1301 return false; | |
1302 }; | |
668 | 1303 |
742
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|
1304 // clear old handler (also ZoomDrag) |
738 | 1305 $scaler.unbind('.dlZoomArea'); |
742
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|
1306 $scaler.unbind(".dlZoomDrag"); |
738 | 1307 $elem.unbind('.dlZoomArea'); |
654 | 1308 // bind start zoom handler |
738 | 1309 $scaler.one('mousedown.dlZoomArea', zoomStart); |
654 | 1310 }; |
647 | 1311 |
723 | 1312 // bird's eye view zoom area click and drag handler |
732
55f2dd197ca9
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|
1313 var setupBirdDrag = function(data) { |
678
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1314 var $birdImg = data.$birdImg; |
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1315 var $birdZoom = data.$birdZoom; |
730 | 1316 var $document = $(document); |
751
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1317 var $scaler = data.$scaler; |
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1318 var startPos, newRect, birdImgRect, birdZoomRect, fullRect, scalerPos; |
678
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1319 |
741 | 1320 // mousedown handler: start dragging bird zoom to a new position |
1321 var birdZoomStartDrag = function(evt) { | |
1322 startPos = geom.position(evt); | |
1323 // position may have changed | |
1324 data.birdTrafo = getImgTrafo($birdImg, FULL_AREA); | |
1325 birdImgRect = geom.rectangle($birdImg); | |
1326 birdZoomRect = geom.rectangle($birdZoom); | |
751
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|
1327 scalerPos = geom.position($scaler); |
741 | 1328 newRect = null; |
746
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1329 fullRect = setZoomBG(data); // setup zoom background image |
741 | 1330 $document.bind("mousemove.dlBirdMove", birdZoomMove); |
1331 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1332 return false; | |
1333 }; | |
1334 | |
733 | 1335 // mousemove handler: drag |
678
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1336 var birdZoomMove = function(evt) { |
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1337 var pos = geom.position(evt); |
730 | 1338 var delta = startPos.delta(pos); |
678
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1339 // move birdZoom div, keeping size |
730 | 1340 newRect = birdZoomRect.copy(); |
733 | 1341 newRect.addPosition(delta); |
678
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|
1342 newRect.stayInside(birdImgRect); |
746
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|
1343 // reflect birdview zoom position in scaler image |
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1344 var area = data.birdTrafo.invtransform(newRect); |
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1345 var imgArea = data.imgTrafo.transform(area); |
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|
1346 var offset = imgArea.getPosition().neg(); |
751
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|
1347 offset.add(scalerPos); |
746
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|
1348 if (fullRect) { |
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1349 var bgPos = fullRect.getPosition().add(offset); |
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|
1350 } else { |
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1351 var bgPos = offset; |
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|
1352 } |
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1353 // move the background image to the new position |
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|
1354 data.$scaler.css({ |
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1355 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
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1356 }); |
751
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|
1357 // acount for border width |
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1358 newRect.addPosition({x : -2, y : -2}); |
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1359 newRect.adjustDiv($birdZoom); |
678
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1360 return false; |
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|
1361 }; |
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|
1362 |
733 | 1363 // mouseup handler: reload page |
678
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|
1364 var birdZoomEndDrag = function(evt) { |
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|
1365 var settings = data.settings; |
730 | 1366 $document.unbind("mousemove.dlBirdMove", birdZoomMove); |
1367 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag); | |
1368 if (newRect == null) { | |
1369 // no movement happened - set center to click position | |
678
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|
1370 startPos = birdZoomRect.getCenter(); |
730 | 1371 birdZoomMove(evt); |
713
c1fa722c570e
more cosmetics: added options to validate with http://www.jslint.com
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|
1372 } |
747
fd4842f0afc7
smoother birdZoom indicator movement; fixed bug in jQuery.offset()
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|
1373 // ugly, but needed to prevent double border width compensation |
fd4842f0afc7
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|
1374 newRect.addPosition({x : +2, y : +2}); |
730 | 1375 var newArea = data.birdTrafo.invtransform(newRect); |
1376 data.zoomArea = newArea; | |
678
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|
1377 redisplay(data); |
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|
1378 return false; |
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|
1379 }; |
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|
1380 |
730 | 1381 // clear old handler |
1382 $document.unbind(".dlBirdMove"); | |
1383 $birdImg.unbind(".dlBirdMove"); | |
1384 $birdZoom.unbind(".dlBirdMove"); | |
732
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|
1385 if (! isFullArea(data.zoomArea)) { |
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|
1386 // set new handler |
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|
1387 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
55f2dd197ca9
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|
1388 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag); |
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|
1389 } |
678
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|
1390 }; |
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|
1391 |
746
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|
1392 // move bird zoom indicator to reflect zoomed detail area |
745
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|
1393 var setBirdZoom = function(data, rect) { |
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1394 var part = data.imgTrafo.invtransform(rect); |
747
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1395 // area = FULL_AREA.fit(part); // no, we want to see where we transcend the borders |
745
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1396 birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA); |
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|
1397 var birdRect = birdTrafo.transform(part); |
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1398 // acount for border width |
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1399 birdRect.addPosition({x : -2, y : -2}); |
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1400 birdRect.adjustDiv(data.$birdZoom); |
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|
1401 }; |
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1402 |
746
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|
1403 // set zoom background |
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1404 var setZoomBG = function(data) { |
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1405 var $scaler = data.$scaler; |
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1406 var $img = data.$img; |
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1407 var fullRect = null; |
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|
1408 // hide the scaler img, show background of div instead |
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1409 $img.css('visibility', 'hidden'); |
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1410 var scalerCss = { |
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1411 'background-image' : 'url(' + $img.attr('src') + ')', |
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1412 'background-repeat' : 'no-repeat', |
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1413 'background-position' : 'left top', |
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1414 'opacity' : '0.5', |
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1415 'cursor' : 'move' |
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1416 }; |
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1417 if (data.hasBgSize) { |
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1418 // full-size background using CSS3-background-size |
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1419 fullRect = data.imgTrafo.transform(FULL_AREA); |
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1420 if (fullRect.height < data.settings.maxBgSize && fullRect.width < data.settings.maxBgSize) { |
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1421 // correct offset because background is relative |
751
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1422 var scalerPos = geom.position($scaler); |
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1423 fullRect.addPosition(scalerPos.neg()); |
746
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1424 var url = getBirdImgUrl(data, ['rot', 'mo']); |
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1425 scalerCss['background-image'] = 'url(' + url + ')'; |
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1426 scalerCss[data.bgSizeName] = fullRect.width + 'px ' + fullRect.height + 'px'; |
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1427 scalerCss['background-position'] = fullRect.x + 'px '+ fullRect.y + 'px'; |
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1428 } else { |
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|
1429 // too big |
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1430 fullRect = null; |
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1431 } |
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|
1432 } |
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1433 $scaler.css(scalerCss); |
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1434 // isBgReady = true; |
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1435 return fullRect; |
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1436 }; |
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1437 |
738 | 1438 // setup handlers for dragging the zoomed image |
705 | 1439 var setupZoomDrag = function(data) { |
746
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1440 var startPos, delta, fullRect; |
733 | 1441 var $document = $(document); |
705 | 1442 var $elem = data.$elem; |
1443 var $scaler = data.$scaler; | |
1444 var $img = data.$img; | |
710 | 1445 |
733 | 1446 // drag the image and load a new detail on mouse up |
705 | 1447 var dragStart = function (evt) { |
742
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1448 console.debug("dragstart at=",evt); |
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1449 // don't start dragging if not zoomed |
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1450 if (isFullArea(data.zoomArea)) return false; |
733 | 1451 startPos = geom.position(evt); |
741 | 1452 delta = null; |
746
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1453 // set low res background immediately on mousedown |
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1454 fullRect = setZoomBG(data); |
733 | 1455 $document.bind("mousemove.dlZoomDrag", dragMove); |
1456 $document.bind("mouseup.dlZoomDrag", dragEnd); | |
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1457 return false; |
705 | 1458 }; |
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1459 |
733 | 1460 // mousemove handler: drag zoomed image |
705 | 1461 var dragMove = function (evt) { |
1462 var pos = geom.position(evt); | |
741 | 1463 delta = startPos.delta(pos); |
1464 if (fullRect) { | |
1465 var bgPos = fullRect.getPosition().add(delta); | |
1466 } else { | |
1467 var bgPos = delta; | |
1468 } | |
705 | 1469 // move the background image to the new position |
715 | 1470 $scaler.css({ |
741 | 1471 'background-position' : bgPos.x + "px " + bgPos.y + "px" |
705 | 1472 }); |
746
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1473 // set birdview indicator to reflect new zoom position |
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1474 var za = geom.rectangle($img); |
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1475 za.addPosition(delta.neg()); |
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1476 setBirdZoom(data, za); |
705 | 1477 return false; |
1478 }; | |
710 | 1479 |
733 | 1480 // mouseup handler: reload zoomed image in new position |
705 | 1481 var dragEnd = function (evt) { |
739 | 1482 $scaler.css('cursor', 'auto'); |
733 | 1483 $document.unbind("mousemove.dlZoomDrag", dragMove); |
1484 $document.unbind("mouseup.dlZoomDrag", dragEnd); | |
1485 if (delta == null || delta.distance() < 2) { | |
1486 // no movement | |
1487 $img.css('visibility', 'visible'); | |
741 | 1488 $scaler.css({'opacity' : '1', 'background-image' : 'none'}); |
733 | 1489 return false; |
1490 } | |
1491 // get old zoom area (screen coordinates) | |
741 | 1492 var za = geom.rectangle($img); |
733 | 1493 // move |
741 | 1494 za.addPosition(delta.neg()); |
733 | 1495 // transform back |
1496 var newArea = data.imgTrafo.invtransform(za); | |
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1497 data.zoomArea = FULL_AREA.fit(newArea); |
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1498 redisplay(data); |
705 | 1499 return false; |
1500 }; | |
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1501 |
733 | 1502 // clear old handler |
1503 $document.unbind(".dlZoomDrag"); | |
741 | 1504 $scaler.unbind(".dlZoomDrag"); |
742
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1505 if (! isFullArea(data.zoomArea)) { |
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1506 // set handler |
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1507 $scaler.bind("mousedown.dlZoomDrag", dragStart); |
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1508 } |
705 | 1509 }; |
1510 | |
703 | 1511 // get image quality as a number (0..2) |
1512 var getQuality = function (data) { | |
1513 var flags = data.scalerFlags; | |
1514 var q = flags.q2 || flags.q1 || 'q0'; // assume q0 as default | |
1515 return parseInt(q[1], 10); | |
706 | 1516 }; |
703 | 1517 |
1518 // set image quality as a number (0..2) | |
1519 var setQuality = function (data, qual) { | |
1520 var flags = data.scalerFlags; | |
1521 // clear flags | |
1522 for (var i = 0; i < 3; ++i) { | |
1523 delete flags['q'+i]; | |
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1524 } |
703 | 1525 flags['q'+qual] = 'q'+qual; |
706 | 1526 }; |
710 | 1527 |
650 | 1528 // sets a key to a value (relative values with +/- if relative=true) |
1529 var setNumValue = function(settings, key, value) { | |
716 | 1530 if (value == null) return null; |
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1531 if (isNumber(value)) { |
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1532 settings[key] = value; |
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1533 return value; |
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1534 } |
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1535 var sign = value[0]; |
650 | 1536 if (sign === '+' || sign === '-') { |
1537 if (settings[key] == null) { | |
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1538 // this isn't perfect but still... |
650 | 1539 settings[key] = 0; |
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1540 } |
650 | 1541 settings[key] = parseFloat(settings[key]) + parseFloat(value); |
1542 } else { | |
1543 settings[key] = value; | |
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1544 } |
650 | 1545 return settings[key]; |
1546 }; | |
655 | 1547 |
1548 // auxiliary function (from old dllib.js) | |
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1549 var isFullArea = function(area) { |
659 | 1550 return (area.width === 1.0) && (area.height === 1.0); |
655 | 1551 }; |
1552 | |
641 | 1553 // auxiliary function (from Douglas Crockford, A.10) |
1554 var isNumber = function isNumber(value) { | |
710 | 1555 return typeof value === 'number' && isFinite(value); |
641 | 1556 }; |
655 | 1557 |
631 | 1558 // auxiliary function to crop senseless precision |
1559 var cropFloat = function (x) { | |
637 | 1560 return parseInt(10000 * x, 10) / 10000; |
631 | 1561 }; |
655 | 1562 |
692 | 1563 // fallback for console.log calls |
1564 if (customConsole) { | |
1565 var logFunction = function(type) { | |
1566 return function(){ | |
1567 var $debug = $('#debug'); // debug div | |
1568 if (!$debug) return; | |
1569 var args = Array.prototype.slice.call(arguments); | |
1570 var argtext = args.join(' '); | |
1571 var $logDiv = $('<div/>'); | |
1572 $logDiv.addClass(type); | |
1573 $logDiv.text(argtext); | |
1574 $debug.append($logDiv); | |
1575 }; | |
1576 }; | |
1577 console.log = logFunction('_log'); | |
1578 console.debug = logFunction('_debug'); | |
1579 console.error = logFunction('_error'); | |
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1580 } |
692 | 1581 |
605 | 1582 // hook plugin into jquery |
651
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1583 $.fn.digilib = function(action) { |
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1584 if (actions[action]) { |
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1585 // call action on this with the remaining arguments (inserting data as first argument) |
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1586 var $elem = $(this); |
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1587 var data = $elem.data('digilib'); |
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1588 var args = Array.prototype.slice.call(arguments, 1); |
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1589 args.unshift(data); |
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1590 return actions[action].apply(this, args); |
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1591 } else if (typeof(action) === 'object' || !action) { |
634 | 1592 // call init on this |
651
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1593 return actions.init.apply(this, arguments); |
605 | 1594 } else { |
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1595 $.error('action ' + action + ' does not exist on jQuery.digilib'); |
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1596 } |
605 | 1597 }; |
692 | 1598 |
604 | 1599 })(jQuery); |