Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 669:b93241aa017c jquery
it DOES work :-)
author | hertzhaft |
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date | Mon, 24 Jan 2011 09:49:49 +0100 |
parents | ad4a2edcbdbc |
children | 11d96bc0ac09 |
rev | line source |
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604 | 1 /* |
2 * digilib jQuery plugin | |
3 * | |
4 */ | |
655 | 5 |
636 | 6 // fallback for console.log calls |
7 if (typeof(console) === 'undefined') { | |
8 var console = { | |
9 log : function(){}, | |
10 debug : function(){}, | |
11 error : function(){} | |
12 }; | |
13 } | |
604 | 14 |
15 (function($) { | |
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16 var buttons = { |
610 | 17 reference : { |
18 onclick : "javascript:getRefWin()", | |
19 tooltip : "get a reference URL", | |
20 img : "reference.png" | |
21 }, | |
22 zoomin : { | |
643 | 23 onclick : ["zoomBy", 1.4], |
610 | 24 tooltip : "zoom in", |
25 img : "zoom-in.png" | |
26 }, | |
27 zoomout : { | |
643 | 28 onclick : ["zoomBy", 0.7], |
610 | 29 tooltip : "zoom out", |
30 img : "zoom-out.png" | |
31 }, | |
32 zoomarea : { | |
654 | 33 onclick : "zoomArea", |
610 | 34 tooltip : "zoom area", |
35 img : "zoom-area.png" | |
36 }, | |
37 zoomfull : { | |
650 | 38 onclick : "zoomFull", |
610 | 39 tooltip : "view the whole image", |
40 img : "zoom-full.png" | |
41 }, | |
42 pagewidth : { | |
650 | 43 onclick : ["zoomFull", "width"], |
610 | 44 tooltip : "page width", |
45 img : "pagewidth.png" | |
46 }, | |
47 back : { | |
623 | 48 onclick : ["gotoPage", "-1"], |
610 | 49 tooltip : "goto previous image", |
50 img : "back.png" | |
51 }, | |
52 fwd : { | |
623 | 53 onclick : ["gotoPage", "+1"], |
610 | 54 tooltip : "goto next image", |
55 img : "fwd.png" | |
56 }, | |
57 page : { | |
58 onclick : "javascript:gotoPageWin()", | |
59 tooltip : "specify image", | |
60 img : "page.png" | |
61 }, | |
62 bird : { | |
635 | 63 onclick : "showBirdDiv", |
610 | 64 tooltip : "show bird's eye view", |
65 img : "birds-eye.png" | |
66 }, | |
67 help : { | |
635 | 68 onclick : "showAboutDiv", |
610 | 69 tooltip : "about Digilib", |
70 img : "help.png" | |
71 }, | |
72 reset : { | |
73 onclick : "javascript:resetImage()", | |
74 tooltip : "reset image", | |
75 img : "reset.png" | |
76 }, | |
77 mark : { | |
647 | 78 onclick : "setMark", |
610 | 79 tooltip : "set a mark", |
80 img : "mark.png" | |
81 }, | |
82 delmark : { | |
650 | 83 onclick : "removeMark", |
610 | 84 tooltip : "delete the last mark", |
85 img : "delmark.png" | |
86 }, | |
87 hmir : { | |
661 | 88 onclick : ["mirror", "h"], |
610 | 89 tooltip : "mirror horizontally", |
90 img : "mirror-horizontal.png" | |
91 }, | |
92 vmir : { | |
661 | 93 onclick : ["mirror", "v"], |
610 | 94 tooltip : "mirror vertically", |
95 img : "mirror-vertical.png" | |
96 }, | |
97 rot : { | |
663 | 98 onclick : "rotate", |
610 | 99 tooltip : "rotate image", |
100 img : "rotate.png" | |
101 }, | |
102 brgt : { | |
663 | 103 onclick : "brightness", |
610 | 104 tooltip : "set brightness", |
105 img : "brightness.png" | |
106 }, | |
107 cont : { | |
663 | 108 onclick : "contrast", |
610 | 109 tooltip : "set contrast", |
110 img : "contrast.png" | |
111 }, | |
112 rgb : { | |
113 onclick : "javascript:setParamWin('rgb', '...')", | |
114 tooltip : "set rgb values", | |
115 img : "rgb.png" | |
116 }, | |
117 quality : { | |
118 onclick : "javascript:setQualityWin('Quality (0..2)')", | |
119 tooltip : "set image quality", | |
120 img : "quality.png" | |
121 }, | |
122 size : { | |
123 onclick : "javascript:toggleSizeMenu()", | |
124 tooltip : "set page size", | |
125 img : "size.png" | |
126 }, | |
127 calibrationx : { | |
128 onclick : "javascript:calibrate('x')", | |
129 tooltip : "calibrate screen x-ratio", | |
130 img : "calibration-x.png" | |
131 }, | |
132 scale : { | |
133 onclick : "javascript:toggleScaleMenu()", | |
134 tooltip : "change image scale", | |
135 img : "original-size.png" | |
136 }, | |
137 options : { | |
138 onclick : "javascript:toggleOptionDiv()", | |
139 tooltip : "hide options", | |
140 img : "options.png" | |
141 }, | |
142 SEP : { | |
143 img : "sep.png" | |
144 } | |
145 }; | |
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146 |
605 | 147 var defaults = { |
616 | 148 // version of this script |
635 | 149 'version' : 'jquery.digilib.js 0.9', |
616 | 150 // logo url |
151 'logoUrl' : '../img/digilib-logo-text1.png', | |
635 | 152 // homepage url (behind logo) |
153 'homeUrl' : 'http://digilib.berlios.de', | |
610 | 154 // base URL to Scaler servlet |
652 | 155 'scalerBaseUrl' : null, |
610 | 156 // list of Scaler parameters |
627 | 157 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
158 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
159 // Scaler parameter defaults | |
643 | 160 'pn' : 1, |
627 | 161 'ww' : 1.0, |
162 'wh' : 1.0, | |
163 'wx' : 0.0, | |
164 'wy' : 0.0, | |
165 'ws' : 1.0, | |
643 | 166 'mo' : '', |
167 'rot' : 0, | |
168 'cont' : 0, | |
169 'brgt' : 0, | |
170 'rgbm' : '0/0/0', | |
171 'rgba' : '0/0/0', | |
172 'ddpi' : null, | |
173 'ddpix' : null, | |
174 'ddpiy' : null, | |
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175 // list of digilib parameters |
650 | 176 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba','mk','clop'], |
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177 // digilib parameter defaults |
643 | 178 'mk' : '', |
650 | 179 'clop' : '', |
643 | 180 // mode of operation: |
181 // fullscreen = take parameters from page URL, keep state in page URL | |
182 // embedded = take parameters from Javascript options, keep state inside object | |
610 | 183 'interactionMode' : 'fullscreen', |
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184 // buttons |
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185 'buttons' : buttons, |
668 | 186 // defaults for digilib buttons |
665 | 187 'buttonSettings' : { |
188 'fullscreen' : { | |
668 | 189 // path to button images (must end with a slash) |
665 | 190 'imagePath' : 'img/fullscreen/', |
191 //'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], | |
192 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","options"], | |
193 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
194 'customSet' : [] | |
195 }, | |
196 'embedded' : { | |
197 'imagePath' : 'img/embedded/16/', | |
198 'standardSet' : ["reference","zoomin","zoomout","zoomarea","zoomfull","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","scale","bird","help","options"], | |
199 'specialSet' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], | |
200 'customSet' : [] | |
201 } | |
202 }, | |
652 | 203 // button groups |
616 | 204 // is birdView shown? |
205 'isBirdDivVisible' : false, | |
668 | 206 // dimensions of bird's eye div |
639 | 207 'birdDivOptions' : {'dw' : 200, 'dh' : 200}, |
668 | 208 // style of the zoom area indicator in the bird's eye div |
659 | 209 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, |
668 | 210 // style of zoom area "rubber band" |
211 'zoomrectStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 212 // is the "about" window shown? |
213 'isAboutDivVisible' : false | |
214 | |
610 | 215 }; |
655 | 216 |
608 | 217 // affine geometry classes |
218 var geom = dlGeometry(); | |
655 | 219 |
643 | 220 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 221 |
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222 var actions = { |
668 | 223 // init: digilib initialization |
224 init : function(options) { | |
225 // settings for this digilib instance are merged from defaults and options | |
226 var settings = $.extend({}, defaults, options); | |
227 var isFullscreen = settings.interactionMode === 'fullscreen'; | |
228 var queryParams = {}; | |
229 if (isFullscreen) { | |
230 queryParams = parseQueryParams(); | |
231 // check scalerBaseUrl | |
232 if (settings.scalerBaseUrl == null) { | |
233 // try the host this came from | |
234 var h = window.location.host; | |
235 if (window.location.host) { | |
236 var url = window.location.href; | |
237 // assume the page lives in [webapp]/jquery/ | |
238 var pos = url.indexOf('jquery/'); | |
239 if (pos > 0) { | |
240 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
652 | 241 } |
242 } | |
636 | 243 } |
668 | 244 } |
245 return this.each(function() { | |
246 var $elem = $(this); | |
247 var data = $elem.data('digilib'); | |
248 var elemSettings; | |
249 // if the plugin hasn't been initialized yet | |
250 if (!data) { | |
251 // merge query parameters | |
252 if (isFullscreen) { | |
253 elemSettings = $.extend({}, settings, queryParams); | |
254 } else { | |
255 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
604 | 256 } |
668 | 257 // store $(this) element in the settings |
258 data = { | |
259 $elem : $elem, | |
260 settings : elemSettings, | |
261 queryParams : queryParams | |
262 }; | |
263 // store in data element | |
264 $elem.data('digilib', data); | |
265 } | |
266 unpackParams(data); | |
267 // create HTML structure | |
268 setupScalerDiv(data); | |
269 setupButtons(data, 'standardSet'); | |
270 // bird's eye view creation | |
271 if (elemSettings.isBirdDivVisible) { | |
638 | 272 setupBirdDiv(data); |
273 } | |
668 | 274 // about window creation - TODO: could be deferred? restrict to only one item? |
275 setupAboutDiv(data); | |
276 }); | |
277 }, | |
278 | |
279 // destroy: clean up digilib | |
280 destroy : function(data) { | |
281 return this.each(function(){ | |
282 var $elem = $(this); | |
283 $(window).unbind('.digilib'); // unbind all digilibs(?) | |
284 data.digilib.remove(); | |
285 $elem.removeData('digilib'); | |
286 }); | |
287 }, | |
288 | |
289 // show or hide the 'about' window | |
290 showAboutDiv : function(data, show) { | |
291 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); | |
292 }, | |
655 | 293 |
668 | 294 // event handler: toggles the visibility of the bird's eye window |
295 showBirdDiv : function (data, show) { | |
296 if (data.$birdDiv == null) { | |
297 // no bird div -> create | |
298 setupBirdDiv(data); | |
299 } | |
300 // TODO: keep bird view visible after reload (parameter, cookie?) | |
301 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); | |
302 }, | |
303 | |
304 // goto given page nr (+/-: relative) | |
305 gotoPage : function (data, pageNr) { | |
306 var settings = data.settings; | |
307 var oldpn = settings.pn; | |
308 var pn = setNumValue(settings, "pn", pageNr); | |
309 if (pn == null) return false; // nothing happened | |
310 if (pn < 1) { | |
311 alert("no such page (page number too low)"); | |
312 settings.pn = oldpn; | |
313 return false; | |
314 } | |
315 if (settings.pt) { | |
316 if (pn > settings.pt) { | |
317 alert("no such page (page number too high)"); | |
623 | 318 settings.pn = oldpn; |
319 return false; | |
634 | 320 } |
668 | 321 } |
322 // reset mk and others(?) | |
323 data.marks = []; | |
324 data.zoomArea = MAX_ZOOMAREA; | |
325 // then reload | |
326 redisplay(data); | |
327 }, | |
654 | 328 |
668 | 329 // zoom by a given factor |
330 zoomBy : function (data, factor) { | |
331 zoomBy(data, factor); | |
332 }, | |
647 | 333 |
668 | 334 // zoom interactively |
335 zoomArea : function (data) { | |
336 zoomArea(data); | |
337 }, | |
650 | 338 |
668 | 339 // zoom out to full page |
340 zoomFull : function (data, mode) { | |
341 data.zoomArea = MAX_ZOOMAREA; | |
342 if (mode === 'width') { | |
343 data.dlOpts.fitwidth = 1; | |
344 delete data.dlOpts.fitheight; | |
345 } else if (mode === 'height') { | |
346 data.dlOpts.fitheight = 1; | |
347 delete data.dlOpts.fitwidth; | |
348 } else { | |
349 delete data.dlOpts.fitwidth; | |
350 delete data.dlOpts.fitheight; | |
351 } | |
352 redisplay(data); | |
353 }, | |
354 | |
355 // set a mark by clicking (or giving a position) | |
356 setMark : function (data, mpos) { | |
357 if (mpos == null) { | |
358 // interactive | |
359 setMark(data); | |
360 } else { | |
361 // use position | |
362 data.marks.push(pos); | |
663 | 363 redisplay(data); |
604 | 364 } |
668 | 365 }, |
366 | |
367 // remove the last mark | |
368 removeMark : function (data) { | |
369 data.marks.pop(); | |
370 redisplay(data); | |
371 }, | |
372 | |
373 // mirror the image | |
374 mirror : function (data, mode) { | |
375 var flags = data.scalerFlags; | |
376 if (mode === 'h') { | |
377 if (flags.hmir) { | |
378 delete flags.hmir; | |
379 } else { | |
380 flags.hmir = 1; | |
381 } | |
382 } else { | |
383 if (flags.vmir) { | |
384 delete flags.vmir; | |
385 } else { | |
386 flags.vmir = 1; | |
387 } | |
388 } | |
389 redisplay(data); | |
390 }, | |
650 | 391 |
668 | 392 // rotate the image |
393 rotate : function (data, angle) { | |
394 var rot = data.settings.rot; | |
395 if (angle == null) { | |
396 angle = window.prompt("Rotation angle:", rot); | |
397 } | |
398 data.settings.rot = angle; | |
399 redisplay(data); | |
400 }, | |
401 | |
402 // change brightness | |
403 brightness : function (data, factor) { | |
404 var brgt = data.settings.brgt; | |
405 if (factor == null) { | |
406 factor = window.prompt("Brightness (-255..255)", brgt); | |
407 } | |
408 data.settings.brgt = factor; | |
409 redisplay(data); | |
410 }, | |
411 | |
412 // change contrast | |
413 contrast : function (data, factor) { | |
414 var cont = data.settings.cont; | |
415 if (factor == null) { | |
416 factor = window.prompt("Contrast (-8, 8)", cont); | |
417 } | |
418 data.settings.cont = factor; | |
419 redisplay(data); | |
420 } | |
605 | 421 }; |
604 | 422 |
608 | 423 // returns parameters from page url |
607 | 424 var parseQueryParams = function() { |
636 | 425 return parseQueryString(window.location.search.slice(1)); |
426 }; | |
655 | 427 |
636 | 428 // returns parameters from embedded img-element |
607 | 429 var parseImgParams = function($elem) { |
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430 var src = $elem.find('img').first().attr('src'); |
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431 if (!src) { |
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432 return null; |
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433 } |
607 | 434 var pos = src.indexOf('?'); |
435 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
436 var scalerUrl = src.substring(0, pos); | |
627 | 437 var params = parseQueryString(query); |
438 params.scalerBaseUrl = scalerUrl; | |
439 return params; | |
636 | 440 }; |
607 | 441 |
608 | 442 // parses query parameter string into parameter object |
607 | 443 var parseQueryString = function(query) { |
444 var pairs = query.split("&"); | |
627 | 445 var params = {}; |
636 | 446 //var keys = []; |
607 | 447 for (var i = 0; i < pairs.length; i++) { |
448 var pair = pairs[i].split("="); | |
449 if (pair.length === 2) { | |
627 | 450 params[pair[0]] = pair[1]; |
636 | 451 //keys.push(pair[0]); |
634 | 452 } |
636 | 453 } |
627 | 454 return params; |
636 | 455 }; |
668 | 456 |
643 | 457 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
458 var getParamString = function (settings, keys, defaults) { | |
615 | 459 var paramString = ''; |
650 | 460 var nx = false; |
615 | 461 for (i = 0; i < keys.length; ++i) { |
462 var key = keys[i]; | |
663 | 463 if ((settings[key] != null) && ((defaults == null) || (settings[key] != defaults[key]))) { |
615 | 464 // first param gets no '&' |
650 | 465 if (nx) { |
466 paramString += '&'; | |
467 } else { | |
468 nx = true; | |
469 } | |
615 | 470 // add parm=val |
471 paramString += key + '=' + settings[key]; | |
643 | 472 } |
615 | 473 } |
474 return paramString; | |
631 | 475 }; |
476 | |
636 | 477 // returns URL and query string for Scaler |
478 var getScalerUrl = function (data) { | |
653 | 479 var settings = data.settings; |
652 | 480 if (settings.scalerBaseUrl == null) { |
481 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
482 } | |
665 | 483 packParams(data); |
636 | 484 var keys = settings.scalerParamNames; |
643 | 485 var queryString = getParamString(settings, keys, defaults); |
636 | 486 var url = settings.scalerBaseUrl + '?' + queryString; |
487 return url; | |
488 }; | |
489 | |
490 // returns URL and query string for current digilib | |
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491 var getDigilibUrl = function (data) { |
643 | 492 packParams(data); |
636 | 493 var settings = data.settings; |
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494 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 495 var url = window.location.toString(); |
496 var pos = url.indexOf('?'); | |
497 var baseUrl = url.substring(0, pos); | |
498 var newurl = baseUrl + '?' + queryString; | |
499 return newurl; | |
500 }; | |
501 | |
655 | 502 // processes some parameters into objects and stuff |
631 | 503 var unpackParams = function (data) { |
504 var settings = data.settings; | |
636 | 505 // zoom area |
631 | 506 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 507 data.zoomArea = zoomArea; |
636 | 508 // marks |
631 | 509 var marks = []; |
650 | 510 if (settings.mk) { |
511 var mk = settings.mk; | |
512 if (mk.indexOf(";") >= 0) { | |
513 var pa = mk.split(";"); // old format with ";" | |
514 } else { | |
515 var pa = mk.split(","); // new format | |
516 } | |
517 for (var i = 0; i < pa.length ; i++) { | |
518 var pos = pa[i].split("/"); | |
519 if (pos.length > 1) { | |
520 marks.push(geom.position(pos[0], pos[1])); | |
521 } | |
633 | 522 } |
631 | 523 } |
643 | 524 data.marks = marks; |
650 | 525 // mo (Scaler flags) |
526 var flags = {}; | |
527 if (settings.mo) { | |
528 var pa = settings.mo.split(","); | |
529 for (var i = 0; i < pa.length ; i++) { | |
530 flags[pa[i]] = pa[i]; | |
531 } | |
532 } | |
533 data.scalerFlags = flags; | |
534 // clop (digilib options) | |
535 var opts = {}; | |
536 if (settings.clop) { | |
537 var pa = settings.clop.split(","); | |
538 for (var i = 0; i < pa.length ; i++) { | |
539 opts[pa[i]] = pa[i]; | |
540 } | |
541 } | |
542 data.dlOpts = opts; | |
661 | 543 // birdview option |
544 if (opts.birdview) { | |
545 settings.isBirdDivVisible = 1; | |
546 } | |
655 | 547 }; |
548 | |
631 | 549 // put objects back into parameters |
550 var packParams = function (data) { | |
551 var settings = data.settings; | |
636 | 552 // zoom area |
643 | 553 if (data.zoomArea) { |
647 | 554 settings.wx = cropFloat(data.zoomArea.x); |
555 settings.wy = cropFloat(data.zoomArea.y); | |
556 settings.ww = cropFloat(data.zoomArea.width); | |
557 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 558 } |
636 | 559 // marks |
643 | 560 if (data.marks) { |
650 | 561 settings.mk = ''; |
643 | 562 for (var i = 0; i < data.marks.length; i++) { |
650 | 563 if (i) { |
564 settings.mk += ','; | |
565 } | |
566 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 567 } |
650 | 568 } |
569 // Scaler flags | |
570 if (data.scalerFlags) { | |
571 var mo = ''; | |
572 for (var f in data.scalerFlags) { | |
573 if (mo) { | |
574 mo += ','; | |
575 } | |
576 mo += f; | |
577 } | |
578 settings.mo = mo; | |
579 } | |
661 | 580 // digilib option birdview |
581 if (settings.isBirdDivVisible) { | |
582 data.dlOpts.birdview = 1; | |
662 | 583 } else { |
584 delete data.dlOpts.birdview; | |
661 | 585 } |
650 | 586 // digilib options |
587 if (data.dlOpts) { | |
588 var clop = ''; | |
589 for (var o in data.dlOpts) { | |
590 if (clop) { | |
591 clop += ','; | |
592 } | |
593 clop += o; | |
594 } | |
595 settings.clop = clop; | |
631 | 596 } |
597 }; | |
655 | 598 |
622 | 599 // (re)load the img from a new scaler URL |
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600 var redisplay = function (data) { |
636 | 601 var settings = data.settings; |
602 if (settings.interactionMode === 'fullscreen') { | |
603 // update location.href (browser URL) in fullscreen mode | |
644
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604 var url = getDigilibUrl(data); |
636 | 605 var history = window.history; |
606 if (typeof(history.pushState) === 'function') { | |
607 console.debug("we could modify history, but we don't..."); | |
608 } | |
609 window.location = url; | |
610 } else { | |
611 // embedded mode -- just change img src | |
612 var url = getScalerUrl(data); | |
613 data.$img.attr('src', url); | |
668 | 614 var $birdImg = data.$birdImg; |
615 if ($birdImg) { | |
616 $birdImg.triggerHandler('load'); | |
617 }; | |
636 | 618 } |
622 | 619 }; |
620 | |
662 | 621 // returns maximum size for scaler img in fullscreen mode |
622 var getFullscreenImgSize = function($elem) { | |
623 var $win = $(window); | |
624 var winH = $win.height(); | |
625 var winW = $win.width(); | |
626 // TODO: account for borders? | |
627 return geom.size(winW, winH); | |
628 }; | |
629 | |
608 | 630 // creates HTML structure for digilib in elem |
627 | 631 var setupScalerDiv = function (data) { |
632 var settings = data.settings; | |
647 | 633 var $elem = data.$elem; |
623 | 634 var $img; |
608 | 635 if (settings.interactionMode === 'fullscreen') { |
609 | 636 // fullscreen |
637 var imgSize = getFullscreenImgSize($elem); | |
650 | 638 // fitwidth/height omits destination height/width |
639 if (data.dlOpts['fitheight'] == null) { | |
640 settings.dw = imgSize.width; | |
641 } | |
642 if (data.dlOpts['fitwidth'] == null) { | |
643 settings.dh = imgSize.height; | |
644 } | |
613
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645 $img = $('<img/>'); |
636 | 646 var scalerUrl = getScalerUrl(data); |
647 $img.attr('src', scalerUrl); | |
609 | 648 } else { |
613
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649 // embedded mode -- try to keep img tag |
623 | 650 $img = $elem.find('img'); |
613
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651 if ($img.length > 0) { |
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652 console.debug("img detach:",$img); |
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653 $img.detach(); |
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654 } else { |
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655 $img = $('<img/>'); |
636 | 656 var scalerUrl = getScalerUrl(data); |
657 $img.attr('src', scalerUrl); | |
613
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658 } |
608 | 659 } |
613
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660 // create new html |
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661 $elem.empty(); // TODO: should we keep stuff for customization? |
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662 var $scaler = $('<div class="scaler"/>'); |
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663 $elem.append($scaler); |
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664 $scaler.append($img); |
622 | 665 $img.addClass('pic'); |
649 | 666 data.$scaler = $scaler; |
636 | 667 data.$img = $img; |
668 $img.load(scalerImgLoadedHandler(data)); | |
608 | 669 }; |
615 | 670 |
610 | 671 // creates HTML structure for buttons in elem |
628
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672 var setupButtons = function (data, actionGroup) { |
647 | 673 var $elem = data.$elem; |
628
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674 var settings = data.settings; |
665 | 675 // if (settings.interactionMode === 'fullscreen') { |
676 var $buttonsDiv = $('<div class="buttons"></div>'); | |
677 $elem.append($buttonsDiv); | |
678 var mode = settings.interactionMode; | |
679 var buttonSettings = settings.buttonSettings[mode] | |
680 var actionNames = buttonSettings[actionGroup]; | |
681 for (var i = 0; i < actionNames.length; i++) { | |
682 var actionName = actionNames[i]; | |
683 var buttonConfig = settings.buttons[actionName]; | |
684 // construct the button html | |
685 var $button = $('<div class="button"></div>'); | |
686 var $a = $('<a/>'); | |
687 var $img = $('<img class="button"/>'); | |
688 $buttonsDiv.append($button); | |
689 $button.append($a); | |
690 $a.append($img); | |
691 // add attributes and bindings | |
692 $button.attr('title', buttonConfig.tooltip); | |
693 $button.addClass('button-' + actionName); | |
694 // create handler for the buttons | |
695 $a.bind('click.digilib', (function () { | |
696 // we create a new closure to capture the value of action | |
697 var action = buttonConfig.onclick; | |
698 if ($.isArray(action)) { | |
699 // the handler function calls digilib with action and parameters | |
700 return function (evt) { | |
701 console.debug('click action=', action, ' evt=', evt); | |
702 $elem.digilib.apply($elem, action); | |
703 return false; | |
704 }; | |
705 } else { | |
706 // the handler function calls digilib with action | |
707 return function (evt) { | |
708 console.debug('click action=', action, ' evt=', evt); | |
709 $elem.digilib(action); | |
710 return false; | |
711 }; | |
712 } | |
713 })()); | |
714 $img.attr('src', buttonSettings.imagePath + buttonConfig.img); | |
637 | 715 } |
662 | 716 // make buttons div scroll if too large for window |
717 if ($buttonsDiv.height() > $(window).height() - 10) { | |
718 $buttonsDiv.css('position', 'absolute'); | |
719 } | |
612 | 720 return $buttonsDiv; |
610 | 721 }; |
615 | 722 |
723 // creates HTML structure for the bird's eye view in elem | |
638 | 724 var setupBirdDiv = function (data) { |
647 | 725 var $elem = data.$elem; |
628
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726 var settings = data.settings; |
615 | 727 // use only the relevant parameters |
728 var keys = ['fn','pn','dw','dh']; | |
639 | 729 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
628
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730 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 731 // the bird's eye div |
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732 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 733 // the detail indicator frame |
655 | 734 var $birdzoomDiv = $('<div class="birdzoom" style="position: absolute; background-color: transparent;"/>'); |
615 | 735 // the small image |
736 var $birdImg = $('<img class="birdimg"/>'); | |
658
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737 $elem.append($birdDiv); |
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738 $birdDiv.append($birdzoomDiv); |
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739 $birdDiv.append($birdImg); |
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740 data.$birdDiv = $birdDiv; |
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741 data.$birdImg = $birdImg; |
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742 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 743 $birdImg.attr('src', birdUrl); |
640
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744 if (data.settings.isBirdDivVisible) { |
658
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745 $birdDiv.fadeIn(); |
640
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746 } |
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747 }; |
615 | 748 |
625 | 749 // creates HTML structure for the about view in elem |
628
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750 var setupAboutDiv = function (data) { |
647 | 751 var $elem = data.$elem; |
628
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752 var settings = data.settings; |
625 | 753 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 754 var $header = $('<p>Digilib Graphic Viewer</p>'); |
755 var $link = $('<a/>'); | |
756 var $logo = $('<img class="logo" title="digilib"/>'); | |
757 var $content = $('<p/>'); | |
758 $elem.append($aboutDiv); | |
759 $aboutDiv.append($header); | |
760 $aboutDiv.append($link); | |
761 $aboutDiv.append($content); | |
762 $link.append($logo); | |
763 $logo.attr('src', settings.logoUrl); | |
635 | 764 $link.attr('href', settings.homeUrl); |
616 | 765 $content.text('Version: ' + settings.version); |
635 | 766 // click hides |
649 | 767 $aboutDiv.bind('click.digilib', function () { |
646 | 768 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 769 return false; |
770 }); | |
635 | 771 data.$aboutDiv = $aboutDiv; |
634 | 772 }; |
773 | |
635 | 774 // shows some window e.g. 'about' (toggle visibility if show is null) |
775 var showDiv = function (isVisible, $div, show) { | |
645 | 776 if (show == null) { |
635 | 777 // toggle visibility |
778 isVisible = !isVisible; | |
779 } else { | |
780 // set visibility | |
781 isVisible = show; | |
782 } | |
783 if (isVisible) { | |
784 $div.fadeIn(); | |
785 } else { | |
786 $div.fadeOut(); | |
787 } | |
788 return isVisible; | |
634 | 789 }; |
616 | 790 |
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791 // create Transform from area and $img |
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792 var getImgTrafo = function ($img, area, data) { |
658
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793 var picrect = geom.rectangle($img); |
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794 var trafo = geom.transform(); |
664
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795 // zoom area offset |
658
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796 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
664
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797 // zoom area size |
658
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798 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
664
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799 // rotate |
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800 if (data) { |
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801 var rot = trafo.getRotationAround(-parseFloat(data.settings.rot), |
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802 geom.position(0.5 * area.width + area.x, 0.5 * area.height + area.y)); |
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803 trafo.concat(rot); |
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804 } |
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805 // scale to screen position and size |
658
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806 trafo.concat(trafo.getScale(picrect)); |
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807 trafo.concat(trafo.getTranslation(picrect)); |
664
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808 /* if (data && data.settings.rot) { |
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809 var rot = trafo.getRotationAround(-data.settings.rot, |
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810 geom.position(0.5 * picrect.width + picrect.x, 0.5 * picrect.height + picrect.y)); |
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811 //var trans1 = trafo.getTranslation(geom.position(-0.5*picrect.width, -0.5*picrect.height)); |
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812 //var rot = trafo.getRotation(data.settings.rot); |
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813 //var trans2 = trafo.getTranslation(geom.position(0.5*picrect.width, 0.5*pirect.height)); |
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814 //trafo.concat(trans1); |
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815 trafo.concat(rot); |
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816 //trafo.concat(trans2); |
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817 } */ |
658
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818 return trafo; |
655 | 819 }; |
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820 |
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821 // returns function for load event of scaler img |
636 | 822 var scalerImgLoadedHandler = function (data) { |
823 var $img = data.$img; | |
633 | 824 return function () { |
627 | 825 console.debug("img loaded! this=", this, " data=", data); |
826 // create Transform from current area and picsize | |
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827 data.imgTrafo = getImgTrafo($img, data.zoomArea, data); |
627 | 828 // display marks |
633 | 829 renderMarks(data); |
627 | 830 //digilib.showArrows(); // show arrow overlays for zoom navigation |
658
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831 }; |
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832 }; |
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833 |
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834 // returns function for load event of bird's eye view img |
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835 var birdImgLoadedHandler = function (data) { |
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836 var $img = data.$birdImg; |
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837 return function () { |
668 | 838 if (!$img) return; |
658
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839 console.debug("birdimg loaded! this=", this, " data=", data); |
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840 // create Transform from current area and picsize |
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841 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
668 | 842 // display red indicator around zoomarea |
658
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843 renderBirdArea(data); |
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844 }; |
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845 }; |
633 | 846 |
847 // place marks on the image | |
848 var renderMarks = function (data) { | |
647 | 849 var $elem = data.$elem; |
643 | 850 var marks = data.marks; |
649 | 851 // TODO: clear marks first(?) |
633 | 852 for (var i = 0; i < marks.length; i++) { |
853 var mark = marks[i]; | |
643 | 854 if (data.zoomArea.containsPosition(mark)) { |
633 | 855 var mpos = data.imgTrafo.transform(mark); |
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856 console.debug("renderMarks: mpos=",mpos); |
633 | 857 // create mark |
858 var html = '<div class="mark">'+(i+1)+'</div>'; | |
859 var $mark = $(html); | |
860 $elem.append($mark); | |
654 | 861 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 862 } |
863 } | |
864 }; | |
655 | 865 |
658
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866 var renderBirdArea = function (data) { |
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867 var $ind = data.$birdDiv.find('div.birdzoom'); |
659 | 868 var zoomArea = data.zoomArea; |
869 var indRect = data.birdTrafo.transform(zoomArea); | |
660 | 870 if (isFullArea(zoomArea)) return $ind.hide(); |
658
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871 // TODO: set the coordinates all in one call? |
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872 $ind.width(indRect.width); |
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873 $ind.height(indRect.height); |
659 | 874 // offset minus frame width |
875 $ind.offset({ left : indRect.x-2, top : indRect.y-2 }); | |
876 $ind.css(data.settings.birdIndicatorStyle); | |
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877 }; |
659 | 878 |
647 | 879 // zooms by the given factor |
643 | 880 var zoomBy = function(data, factor) { |
881 var area = data.zoomArea; | |
882 var newarea = area.copy(); | |
883 // scale | |
884 newarea.width /= factor; | |
885 newarea.height /= factor; | |
886 // and recenter | |
887 newarea.x -= 0.5 * (newarea.width - area.width); | |
888 newarea.y -= 0.5 * (newarea.height - area.height); | |
889 newarea = MAX_ZOOMAREA.fit(newarea); | |
890 data.zoomArea = newarea; | |
644
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891 redisplay(data); |
643 | 892 }; |
893 | |
647 | 894 // add a mark where clicked |
895 var setMark = function (data) { | |
649 | 896 var $scaler = data.$scaler; |
647 | 897 console.debug("setmark"); |
898 // start event capturing | |
649 | 899 $scaler.one('click.digilib', function (evt) { |
647 | 900 // event handler adding a new mark |
901 console.debug("setmark.click evt=",evt); | |
902 var mpos = geom.position(evt.pageX, evt.pageY); | |
903 var pos = data.imgTrafo.invtransform(mpos); | |
904 data.marks.push(pos); | |
905 redisplay(data); | |
649 | 906 return false; // do we even get here? |
647 | 907 }); |
908 }; | |
668 | 909 |
654 | 910 var zoomArea = function(data) { |
911 $elem = data.$elem; | |
912 $scaler = data.$scaler; | |
913 var pt1, pt2; | |
914 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
915 $elem.append($zoomDiv); | |
668 | 916 $zoomDiv.css(data.settings.zoomrectStyle); |
654 | 917 //var overlay = getElement("overlay"); |
918 // use overlay div to avoid <img> mousemove problems | |
919 var picRect = geom.rectangle($scaler); | |
920 // FIX ME: is there a way to query the border width from CSS info? | |
921 // rect.x -= 2; // account for overlay borders | |
922 // rect.y -= 2; | |
923 //moveElement(overlay, picRect); | |
924 //showElement(overlay, true); | |
925 // start event capturing | |
926 //registerEvent("mousedown", overlay, zoomStart); | |
927 //registerEvent("mousedown", this.scalerImg, zoomStart); | |
928 | |
929 var zoomStart = function (evt) { | |
930 pt1 = geom.position(evt); | |
931 // setup and show zoom div | |
932 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
933 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
668 | 934 $zoomDiv.width(0).height(0); |
654 | 935 $zoomDiv.show(); |
936 // register events | |
937 $elem.bind("mousemove.digilib", zoomMove); | |
938 $elem.bind("mouseup.digilib", zoomEnd); | |
939 return false; | |
940 }; | |
668 | 941 |
654 | 942 // mouseup handler: end moving |
943 var zoomEnd = function (evt) { | |
944 pt2 = geom.position(evt); | |
945 // assume a click and continue if the area is too small | |
946 var clickRect = geom.rectangle(pt1, pt2); | |
947 clickRect.normalize(); | |
948 console.debug("clickRect.getArea()=",clickRect.getArea()); | |
949 if (clickRect.getArea() <= 5) { | |
950 return false; | |
951 } | |
952 // hide zoom div | |
953 $zoomDiv.remove(); | |
954 // unregister events | |
955 $elem.unbind("mousemove.digilib", zoomMove); | |
956 $elem.unbind("mouseup.digilib", zoomEnd); | |
957 // clip and transform | |
958 clickRect.clipTo(picRect); | |
959 var area = data.imgTrafo.invtransform(clickRect); | |
960 data.zoomArea = area; | |
961 // zoomed is always fit | |
962 data.settings.ws = 1; | |
963 redisplay(data); | |
964 return false; | |
965 }; | |
668 | 966 |
654 | 967 // mouse move handler |
968 var zoomMove = function (evt) { | |
969 pt2 = geom.position(evt); | |
970 var rect = geom.rectangle(pt1, pt2); | |
971 rect.normalize(); | |
972 rect.clipTo(picRect); | |
973 // update zoom div | |
974 $zoomDiv.offset({left : rect.x, top : rect.y}); | |
975 $zoomDiv.width(rect.width).height(rect.height); | |
976 return false; | |
977 }; | |
668 | 978 |
654 | 979 // bind start zoom handler |
980 $scaler.one('mousedown.digilib', zoomStart); | |
981 }; | |
647 | 982 |
650 | 983 // sets a key to a value (relative values with +/- if relative=true) |
984 var setNumValue = function(settings, key, value) { | |
985 if (isNumber(value)) return settings[key] = value; | |
986 var sign = value.substring(0,1); | |
987 if (sign === '+' || sign === '-') { | |
988 if (settings[key] == null) { | |
651
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989 // this isn't perfect but still... |
650 | 990 settings[key] = 0; |
991 } | |
992 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
993 } else { | |
994 settings[key] = value; | |
995 } | |
996 return settings[key]; | |
997 }; | |
655 | 998 |
999 // auxiliary function (from old dllib.js) | |
659 | 1000 isFullArea = function(area) { |
1001 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 1002 }; |
1003 | |
641 | 1004 // auxiliary function (from Douglas Crockford, A.10) |
1005 var isNumber = function isNumber(value) { | |
1006 return typeof value === 'number' && isFinite(value); | |
1007 }; | |
655 | 1008 |
631 | 1009 // auxiliary function to crop senseless precision |
1010 var cropFloat = function (x) { | |
637 | 1011 return parseInt(10000 * x, 10) / 10000; |
631 | 1012 }; |
655 | 1013 |
605 | 1014 // hook plugin into jquery |
651
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1015 $.fn.digilib = function(action) { |
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1016 if (actions[action]) { |
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1017 // call action on this with the remaining arguments (inserting data as first argument) |
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1018 var $elem = $(this); |
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1019 var data = $elem.data('digilib'); |
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1020 var args = Array.prototype.slice.call(arguments, 1); |
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1021 args.unshift(data); |
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1022 return actions[action].apply(this, args); |
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1023 } else if (typeof(action) === 'object' || !action) { |
634 | 1024 // call init on this |
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1025 return actions.init.apply(this, arguments); |
605 | 1026 } else { |
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1027 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 1028 } |
1029 }; | |
604 | 1030 |
1031 })(jQuery); |