Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 662:6a03dbd30e4f jquery
fix bug in birdview handling.
put all buttons on screen for testing.
make buttons scroll is larger than screen.
author | robcast |
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date | Sat, 22 Jan 2011 23:34:48 +0100 |
parents | 68bf2f2953d0 |
children | 9791a2cec863 |
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 : { | |
98 onclick : "javascript:setParamWin('rot', 'Rotate (0..360) clockwise')", | |
99 tooltip : "rotate image", | |
100 img : "rotate.png" | |
101 }, | |
102 brgt : { | |
103 onclick : "javascript:setParamWin('brgt', 'Brightness (-255..255)')", | |
104 tooltip : "set brightness", | |
105 img : "brightness.png" | |
106 }, | |
107 cont : { | |
108 onclick : "javascript:setParamWin('cont', 'Contrast (0..8)')", | |
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'], |
644
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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', |
651
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184 // buttons |
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185 'buttons' : buttons, |
612 | 186 // path to button images (must end with a slash) |
187 'buttonsImagePath' : '../greyskin/', | |
652 | 188 // button groups |
651
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189 //'buttonsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], |
662 | 190 'buttonsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","hmir","vmir","back","fwd","page","rot","brgt","cont","rgb","quality","size","calibrationx","scale","bird","help","options"], |
651
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191 'buttonsSpecial' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], |
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192 'buttonsCustom' : [], |
616 | 193 // is birdView shown? |
194 'isBirdDivVisible' : false, | |
615 | 195 // dimensions of bird's eye window |
639 | 196 'birdDivOptions' : {'dw' : 200, 'dh' : 200}, |
659 | 197 // style of bird's eye window |
198 'birdIndicatorStyle' : {'border' : '2px solid #ff0000' }, | |
616 | 199 // is the "about" window shown? |
200 'isAboutDivVisible' : false | |
201 | |
610 | 202 }; |
655 | 203 |
608 | 204 // affine geometry classes |
205 var geom = dlGeometry(); | |
655 | 206 |
643 | 207 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
655 | 208 |
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209 var actions = { |
654 | 210 // init: digilib initialization |
604 | 211 init : function(options) { |
608 | 212 // settings for this digilib instance are merged from defaults and options |
607 | 213 var settings = $.extend({}, defaults, options); |
636 | 214 var isFullscreen = settings.interactionMode === 'fullscreen'; |
215 var queryParams = {}; | |
607 | 216 if (isFullscreen) { |
217 queryParams = parseQueryParams(); | |
652 | 218 // check scalerBaseUrl |
219 if (settings.scalerBaseUrl == null) { | |
220 // try the host this came from | |
221 var h = window.location.host; | |
222 if (window.location.host) { | |
223 var url = window.location.href; | |
224 // assume the page lives in [webapp]/jquery/ | |
225 var pos = url.indexOf('jquery/'); | |
226 if (pos > 0) { | |
227 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
228 } | |
229 } | |
230 } | |
636 | 231 } |
604 | 232 return this.each(function() { |
605 | 233 var $elem = $(this); |
234 var data = $elem.data('digilib'); | |
607 | 235 var elemSettings; |
608 | 236 // if the plugin hasn't been initialized yet |
604 | 237 if (!data) { |
605 | 238 // merge query parameters |
607 | 239 if (isFullscreen) { |
240 elemSettings = $.extend({}, settings, queryParams); | |
241 } else { | |
242 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
634 | 243 } |
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244 // store $(this) element in the settings |
627 | 245 data = { |
647 | 246 $elem : $elem, |
636 | 247 settings : elemSettings, |
248 queryParams : queryParams | |
627 | 249 }; |
605 | 250 // store in data element |
627 | 251 $elem.data('digilib', data); |
604 | 252 } |
633 | 253 unpackParams(data); |
608 | 254 // create HTML structure |
627 | 255 setupScalerDiv(data); |
651
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256 setupButtons(data, 'buttonsStandard'); |
639 | 257 // bird's eye view creation |
661 | 258 if (elemSettings.isBirdDivVisible) { |
641 | 259 setupBirdDiv(data); |
639 | 260 } |
627 | 261 // about window creation - TODO: could be deferred? restrict to only one item? |
628
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262 setupAboutDiv(data); |
604 | 263 }); |
264 }, | |
608 | 265 |
654 | 266 // destroy: clean up digilib |
651
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267 destroy : function(data) { |
604 | 268 return this.each(function(){ |
636 | 269 var $elem = $(this); |
654 | 270 $(window).unbind('.digilib'); // unbind all digilibs(?) |
604 | 271 data.digilib.remove(); |
636 | 272 $elem.removeData('digilib'); |
604 | 273 }); |
617
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274 }, |
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275 |
635 | 276 // show or hide the 'about' window |
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277 showAboutDiv : function(data, show) { |
635 | 278 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
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279 }, |
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280 |
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281 // event handler: toggles the visibility of the bird's eye window |
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282 showBirdDiv : function (data, show) { |
638 | 283 if (data.$birdDiv == null) { |
284 // no bird div -> create | |
285 setupBirdDiv(data); | |
286 } | |
655 | 287 // TODO: keep bird view visible after reload (parameter, cookie?) |
635 | 288 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); |
623 | 289 }, |
655 | 290 |
623 | 291 // goto given page nr (+/-: relative) |
651
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292 gotoPage : function (data, pageNr) { |
636 | 293 var settings = data.settings; |
623 | 294 var oldpn = settings.pn; |
624 | 295 var pn = setNumValue(settings, "pn", pageNr); |
296 if (pn == null) return false; // nothing happened | |
623 | 297 if (pn < 1) { |
298 alert("no such page (page number too low)"); | |
299 settings.pn = oldpn; | |
300 return false; | |
634 | 301 } |
623 | 302 if (settings.pt) { |
303 if (pn > settings.pt) { | |
304 alert("no such page (page number too high)"); | |
305 settings.pn = oldpn; | |
306 return false; | |
307 } | |
634 | 308 } |
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309 // reset mk and others(?) |
643 | 310 data.marks = []; |
311 data.zoomArea = MAX_ZOOMAREA; | |
636 | 312 // then reload |
644
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313 redisplay(data); |
643 | 314 }, |
655 | 315 |
643 | 316 // zoom by a given factor |
651
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317 zoomBy : function (data, factor) { |
643 | 318 zoomBy(data, factor); |
647 | 319 }, |
320 | |
654 | 321 // zoom interactively |
322 zoomArea : function (data) { | |
323 zoomArea(data); | |
324 }, | |
325 | |
647 | 326 // zoom out to full page |
651
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327 zoomFull : function (data, mode) { |
647 | 328 data.zoomArea = MAX_ZOOMAREA; |
650 | 329 if (mode === 'width') { |
330 data.dlOpts.fitwidth = 1; | |
331 delete data.dlOpts.fitheight; | |
332 } else if (mode === 'height') { | |
333 data.dlOpts.fitheight = 1; | |
334 delete data.dlOpts.fitwidth; | |
335 } else { | |
336 delete data.dlOpts.fitwidth; | |
337 delete data.dlOpts.fitheight; | |
338 } | |
647 | 339 redisplay(data); |
340 }, | |
341 | |
342 // set a mark by clicking (or giving a position) | |
651
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343 setMark : function (data, mpos) { |
647 | 344 if (mpos == null) { |
345 // interactive | |
346 setMark(data); | |
347 } else { | |
348 // use position | |
349 data.marks.push(pos); | |
350 redisplay(data); | |
351 } | |
650 | 352 }, |
353 | |
354 // remove the last mark | |
651
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355 removeMark : function (data) { |
650 | 356 data.marks.pop(); |
357 redisplay(data); | |
661 | 358 }, |
359 | |
360 // mirror the image | |
361 mirror : function (data, mode) { | |
362 var flags = data.scalerFlags; | |
363 if (mode === 'h') { | |
364 if (flags.hmir) { | |
365 delete flags.hmir; | |
366 } else { | |
367 flags.hmir = 1; | |
368 } | |
369 } else { | |
370 if (flags.vmir) { | |
371 delete flags.vmir; | |
372 } else { | |
373 flags.vmir = 1; | |
374 } | |
375 } | |
376 redisplay(data); | |
604 | 377 } |
650 | 378 |
605 | 379 }; |
604 | 380 |
608 | 381 // returns parameters from page url |
607 | 382 var parseQueryParams = function() { |
636 | 383 return parseQueryString(window.location.search.slice(1)); |
384 }; | |
655 | 385 |
636 | 386 // returns parameters from embedded img-element |
607 | 387 var parseImgParams = function($elem) { |
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388 var src = $elem.find('img').first().attr('src'); |
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389 if (!src) { |
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390 return null; |
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391 } |
607 | 392 var pos = src.indexOf('?'); |
393 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
394 var scalerUrl = src.substring(0, pos); | |
627 | 395 var params = parseQueryString(query); |
396 params.scalerBaseUrl = scalerUrl; | |
397 return params; | |
636 | 398 }; |
607 | 399 |
608 | 400 // parses query parameter string into parameter object |
607 | 401 var parseQueryString = function(query) { |
402 var pairs = query.split("&"); | |
627 | 403 var params = {}; |
636 | 404 //var keys = []; |
607 | 405 for (var i = 0; i < pairs.length; i++) { |
406 var pair = pairs[i].split("="); | |
407 if (pair.length === 2) { | |
627 | 408 params[pair[0]] = pair[1]; |
636 | 409 //keys.push(pair[0]); |
634 | 410 } |
636 | 411 } |
627 | 412 return params; |
636 | 413 }; |
604 | 414 |
643 | 415 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
416 var getParamString = function (settings, keys, defaults) { | |
615 | 417 var paramString = ''; |
650 | 418 var nx = false; |
615 | 419 for (i = 0; i < keys.length; ++i) { |
420 var key = keys[i]; | |
643 | 421 if ((settings[key] != null) && ((defaults == null) || (settings[key] !== defaults[key]))) { |
615 | 422 // first param gets no '&' |
650 | 423 if (nx) { |
424 paramString += '&'; | |
425 } else { | |
426 nx = true; | |
427 } | |
615 | 428 // add parm=val |
429 paramString += key + '=' + settings[key]; | |
643 | 430 } |
615 | 431 } |
432 return paramString; | |
631 | 433 }; |
434 | |
636 | 435 // returns URL and query string for Scaler |
436 var getScalerUrl = function (data) { | |
653 | 437 var settings = data.settings; |
652 | 438 if (settings.scalerBaseUrl == null) { |
439 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
440 } | |
636 | 441 var keys = settings.scalerParamNames; |
643 | 442 var queryString = getParamString(settings, keys, defaults); |
636 | 443 var url = settings.scalerBaseUrl + '?' + queryString; |
444 return url; | |
445 }; | |
446 | |
447 // returns URL and query string for current digilib | |
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448 var getDigilibUrl = function (data) { |
643 | 449 packParams(data); |
636 | 450 var settings = data.settings; |
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451 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
636 | 452 var url = window.location.toString(); |
453 var pos = url.indexOf('?'); | |
454 var baseUrl = url.substring(0, pos); | |
455 var newurl = baseUrl + '?' + queryString; | |
456 return newurl; | |
457 }; | |
458 | |
655 | 459 // processes some parameters into objects and stuff |
631 | 460 var unpackParams = function (data) { |
461 var settings = data.settings; | |
636 | 462 // zoom area |
631 | 463 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
643 | 464 data.zoomArea = zoomArea; |
636 | 465 // marks |
631 | 466 var marks = []; |
650 | 467 if (settings.mk) { |
468 var mk = settings.mk; | |
469 if (mk.indexOf(";") >= 0) { | |
470 var pa = mk.split(";"); // old format with ";" | |
471 } else { | |
472 var pa = mk.split(","); // new format | |
473 } | |
474 for (var i = 0; i < pa.length ; i++) { | |
475 var pos = pa[i].split("/"); | |
476 if (pos.length > 1) { | |
477 marks.push(geom.position(pos[0], pos[1])); | |
478 } | |
633 | 479 } |
631 | 480 } |
643 | 481 data.marks = marks; |
650 | 482 // mo (Scaler flags) |
483 var flags = {}; | |
484 if (settings.mo) { | |
485 var pa = settings.mo.split(","); | |
486 for (var i = 0; i < pa.length ; i++) { | |
487 flags[pa[i]] = pa[i]; | |
488 } | |
489 } | |
490 data.scalerFlags = flags; | |
491 // clop (digilib options) | |
492 var opts = {}; | |
493 if (settings.clop) { | |
494 var pa = settings.clop.split(","); | |
495 for (var i = 0; i < pa.length ; i++) { | |
496 opts[pa[i]] = pa[i]; | |
497 } | |
498 } | |
499 data.dlOpts = opts; | |
661 | 500 // birdview option |
501 if (opts.birdview) { | |
502 settings.isBirdDivVisible = 1; | |
503 } | |
655 | 504 }; |
505 | |
631 | 506 // put objects back into parameters |
507 var packParams = function (data) { | |
508 var settings = data.settings; | |
636 | 509 // zoom area |
643 | 510 if (data.zoomArea) { |
647 | 511 settings.wx = cropFloat(data.zoomArea.x); |
512 settings.wy = cropFloat(data.zoomArea.y); | |
513 settings.ww = cropFloat(data.zoomArea.width); | |
514 settings.wh = cropFloat(data.zoomArea.height); | |
631 | 515 } |
636 | 516 // marks |
643 | 517 if (data.marks) { |
650 | 518 settings.mk = ''; |
643 | 519 for (var i = 0; i < data.marks.length; i++) { |
650 | 520 if (i) { |
521 settings.mk += ','; | |
522 } | |
523 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
631 | 524 } |
650 | 525 } |
526 // Scaler flags | |
527 if (data.scalerFlags) { | |
528 var mo = ''; | |
529 for (var f in data.scalerFlags) { | |
530 if (mo) { | |
531 mo += ','; | |
532 } | |
533 mo += f; | |
534 } | |
535 settings.mo = mo; | |
536 } | |
661 | 537 // digilib option birdview |
538 if (settings.isBirdDivVisible) { | |
539 data.dlOpts.birdview = 1; | |
662 | 540 } else { |
541 delete data.dlOpts.birdview; | |
661 | 542 } |
650 | 543 // digilib options |
544 if (data.dlOpts) { | |
545 var clop = ''; | |
546 for (var o in data.dlOpts) { | |
547 if (clop) { | |
548 clop += ','; | |
549 } | |
550 clop += o; | |
551 } | |
552 settings.clop = clop; | |
631 | 553 } |
554 }; | |
655 | 555 |
622 | 556 // (re)load the img from a new scaler URL |
644
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557 var redisplay = function (data) { |
636 | 558 var settings = data.settings; |
559 if (settings.interactionMode === 'fullscreen') { | |
560 // update location.href (browser URL) in fullscreen mode | |
644
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561 var url = getDigilibUrl(data); |
636 | 562 var history = window.history; |
563 if (typeof(history.pushState) === 'function') { | |
564 console.debug("we could modify history, but we don't..."); | |
565 } | |
566 window.location = url; | |
567 } else { | |
568 // embedded mode -- just change img src | |
569 var url = getScalerUrl(data); | |
570 data.$img.attr('src', url); | |
571 } | |
622 | 572 }; |
573 | |
662 | 574 // returns maximum size for scaler img in fullscreen mode |
575 var getFullscreenImgSize = function($elem) { | |
576 var $win = $(window); | |
577 var winH = $win.height(); | |
578 var winW = $win.width(); | |
579 // TODO: account for borders? | |
580 return geom.size(winW, winH); | |
581 }; | |
582 | |
608 | 583 // creates HTML structure for digilib in elem |
627 | 584 var setupScalerDiv = function (data) { |
585 var settings = data.settings; | |
647 | 586 var $elem = data.$elem; |
623 | 587 var $img; |
608 | 588 if (settings.interactionMode === 'fullscreen') { |
609 | 589 // fullscreen |
590 var imgSize = getFullscreenImgSize($elem); | |
650 | 591 // fitwidth/height omits destination height/width |
592 if (data.dlOpts['fitheight'] == null) { | |
593 settings.dw = imgSize.width; | |
594 } | |
595 if (data.dlOpts['fitwidth'] == null) { | |
596 settings.dh = imgSize.height; | |
597 } | |
613
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598 $img = $('<img/>'); |
636 | 599 var scalerUrl = getScalerUrl(data); |
600 $img.attr('src', scalerUrl); | |
609 | 601 } else { |
613
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602 // embedded mode -- try to keep img tag |
623 | 603 $img = $elem.find('img'); |
613
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604 if ($img.length > 0) { |
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605 console.debug("img detach:",$img); |
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606 $img.detach(); |
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607 } else { |
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608 $img = $('<img/>'); |
636 | 609 var scalerUrl = getScalerUrl(data); |
610 $img.attr('src', scalerUrl); | |
613
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611 } |
608 | 612 } |
613
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613 // create new html |
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614 $elem.empty(); // TODO: should we keep stuff for customization? |
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615 var $scaler = $('<div class="scaler"/>'); |
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616 $elem.append($scaler); |
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617 $scaler.append($img); |
622 | 618 $img.addClass('pic'); |
649 | 619 data.$scaler = $scaler; |
636 | 620 data.$img = $img; |
621 $img.load(scalerImgLoadedHandler(data)); | |
608 | 622 }; |
615 | 623 |
610 | 624 // creates HTML structure for buttons in elem |
628
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625 var setupButtons = function (data, actionGroup) { |
647 | 626 var $elem = data.$elem; |
628
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627 var settings = data.settings; |
610 | 628 if (settings.interactionMode === 'fullscreen') { |
629 // fullscreen -- create new | |
612 | 630 var $buttonsDiv = $('<div class="buttons"></div>'); |
631 $elem.append($buttonsDiv); | |
618
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632 var actionNames = settings[actionGroup]; |
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633 for (var i = 0; i < actionNames.length; i++) { |
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634 var actionName = actionNames[i]; |
651
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635 var buttonSettings = settings.buttons[actionName]; |
612 | 636 // construct the button html |
637 var $button = $('<div class="button"></div>'); | |
638 var $a = $('<a/>'); | |
614 | 639 var $img = $('<img class="button"/>'); |
612 | 640 $buttonsDiv.append($button); |
641 $button.append($a); | |
642 $a.append($img); | |
643 // add attributes and bindings | |
651
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644 $button.attr('title', buttonSettings.tooltip); |
618
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645 $button.addClass('button-' + actionName); |
635 | 646 // create handler for the buttons |
649 | 647 $a.bind('click.digilib', (function () { |
651
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648 // we create a new closure to capture the value of action |
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649 var action = buttonSettings.onclick; |
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650 if ($.isArray(action)) { |
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651 // the handler function calls digilib with action and parameters |
649 | 652 return function (evt) { |
651
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653 console.debug('click action=', action, ' evt=', evt); |
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654 $elem.digilib.apply($elem, action); |
649 | 655 return false; |
619 | 656 }; |
635 | 657 } else { |
651
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658 // the handler function calls digilib with action |
649 | 659 return function (evt) { |
651
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660 console.debug('click action=', action, ' evt=', evt); |
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661 $elem.digilib(action); |
649 | 662 return false; |
635 | 663 }; |
664 } | |
665 })()); | |
651
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666 $img.attr('src', settings.buttonsImagePath + buttonSettings.img); |
637 | 667 } |
611 | 668 } |
662 | 669 // make buttons div scroll if too large for window |
670 if ($buttonsDiv.height() > $(window).height() - 10) { | |
671 $buttonsDiv.css('position', 'absolute'); | |
672 } | |
612 | 673 return $buttonsDiv; |
610 | 674 }; |
615 | 675 |
676 // creates HTML structure for the bird's eye view in elem | |
638 | 677 var setupBirdDiv = function (data) { |
647 | 678 var $elem = data.$elem; |
628
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679 var settings = data.settings; |
615 | 680 // use only the relevant parameters |
681 var keys = ['fn','pn','dw','dh']; | |
639 | 682 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
628
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683 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
615 | 684 // the bird's eye div |
658
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685 var $birdDiv = $('<div class="birdview" style="display:none"/>'); |
615 | 686 // the detail indicator frame |
655 | 687 var $birdzoomDiv = $('<div class="birdzoom" style="position: absolute; background-color: transparent;"/>'); |
615 | 688 // the small image |
689 var $birdImg = $('<img class="birdimg"/>'); | |
658
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690 $elem.append($birdDiv); |
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691 $birdDiv.append($birdzoomDiv); |
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692 $birdDiv.append($birdImg); |
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693 data.$birdDiv = $birdDiv; |
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694 data.$birdImg = $birdImg; |
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695 $birdImg.load(birdImgLoadedHandler(data)); |
615 | 696 $birdImg.attr('src', birdUrl); |
640
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697 if (data.settings.isBirdDivVisible) { |
658
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698 $birdDiv.fadeIn(); |
640
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699 } |
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700 }; |
615 | 701 |
625 | 702 // creates HTML structure for the about view in elem |
628
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703 var setupAboutDiv = function (data) { |
647 | 704 var $elem = data.$elem; |
628
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705 var settings = data.settings; |
625 | 706 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
616 | 707 var $header = $('<p>Digilib Graphic Viewer</p>'); |
708 var $link = $('<a/>'); | |
709 var $logo = $('<img class="logo" title="digilib"/>'); | |
710 var $content = $('<p/>'); | |
711 $elem.append($aboutDiv); | |
712 $aboutDiv.append($header); | |
713 $aboutDiv.append($link); | |
714 $aboutDiv.append($content); | |
715 $link.append($logo); | |
716 $logo.attr('src', settings.logoUrl); | |
635 | 717 $link.attr('href', settings.homeUrl); |
616 | 718 $content.text('Version: ' + settings.version); |
635 | 719 // click hides |
649 | 720 $aboutDiv.bind('click.digilib', function () { |
646 | 721 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
649 | 722 return false; |
723 }); | |
635 | 724 data.$aboutDiv = $aboutDiv; |
634 | 725 }; |
726 | |
635 | 727 // shows some window e.g. 'about' (toggle visibility if show is null) |
728 var showDiv = function (isVisible, $div, show) { | |
645 | 729 if (show == null) { |
635 | 730 // toggle visibility |
731 isVisible = !isVisible; | |
732 } else { | |
733 // set visibility | |
734 isVisible = show; | |
735 } | |
736 if (isVisible) { | |
737 $div.fadeIn(); | |
738 } else { | |
739 $div.fadeOut(); | |
740 } | |
741 return isVisible; | |
634 | 742 }; |
616 | 743 |
658
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744 // create Transform from area and $img |
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745 var getImgTrafo = function ($img, area) { |
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746 var picrect = geom.rectangle($img); |
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747 var trafo = geom.transform(); |
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748 // subtract area offset and size |
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749 trafo.concat(trafo.getTranslation(geom.position(-area.x, -area.y))); |
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750 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
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751 // scale to screen size |
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752 trafo.concat(trafo.getScale(picrect)); |
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753 trafo.concat(trafo.getTranslation(picrect)); |
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754 return trafo; |
655 | 755 }; |
658
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756 |
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757 // returns function for load event of scaler img |
636 | 758 var scalerImgLoadedHandler = function (data) { |
759 var $img = data.$img; | |
633 | 760 return function () { |
627 | 761 console.debug("img loaded! this=", this, " data=", data); |
762 // create Transform from current area and picsize | |
658
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763 data.imgTrafo = getImgTrafo($img, data.zoomArea); |
627 | 764 // display marks |
633 | 765 renderMarks(data); |
627 | 766 //digilib.showArrows(); // show arrow overlays for zoom navigation |
658
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767 }; |
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768 }; |
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769 |
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770 // returns function for load event of bird's eye view img |
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771 var birdImgLoadedHandler = function (data) { |
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772 var $img = data.$birdImg; |
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773 return function () { |
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774 console.debug("birdimg loaded! this=", this, " data=", data); |
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775 // create Transform from current area and picsize |
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776 data.birdTrafo = getImgTrafo($img, MAX_ZOOMAREA); |
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777 // display marks |
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778 renderBirdArea(data); |
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779 }; |
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780 }; |
633 | 781 |
782 // place marks on the image | |
783 var renderMarks = function (data) { | |
647 | 784 var $elem = data.$elem; |
643 | 785 var marks = data.marks; |
649 | 786 // TODO: clear marks first(?) |
633 | 787 for (var i = 0; i < marks.length; i++) { |
788 var mark = marks[i]; | |
643 | 789 if (data.zoomArea.containsPosition(mark)) { |
633 | 790 var mpos = data.imgTrafo.transform(mark); |
791 // create mark | |
792 var html = '<div class="mark">'+(i+1)+'</div>'; | |
793 var $mark = $(html); | |
794 $elem.append($mark); | |
654 | 795 $mark.offset({left : mpos.x, top : mpos.y}); |
633 | 796 } |
797 } | |
798 }; | |
655 | 799 |
658
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800 var renderBirdArea = function (data) { |
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801 var $ind = data.$birdDiv.find('div.birdzoom'); |
659 | 802 var zoomArea = data.zoomArea; |
803 var indRect = data.birdTrafo.transform(zoomArea); | |
660 | 804 if (isFullArea(zoomArea)) return $ind.hide(); |
658
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805 // TODO: set the coordinates all in one call? |
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806 $ind.width(indRect.width); |
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807 $ind.height(indRect.height); |
659 | 808 // offset minus frame width |
809 $ind.offset({ left : indRect.x-2, top : indRect.y-2 }); | |
810 $ind.css(data.settings.birdIndicatorStyle); | |
658
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811 } |
659 | 812 |
647 | 813 // zooms by the given factor |
643 | 814 var zoomBy = function(data, factor) { |
815 var area = data.zoomArea; | |
816 var newarea = area.copy(); | |
817 // scale | |
818 newarea.width /= factor; | |
819 newarea.height /= factor; | |
820 // and recenter | |
821 newarea.x -= 0.5 * (newarea.width - area.width); | |
822 newarea.y -= 0.5 * (newarea.height - area.height); | |
823 newarea = MAX_ZOOMAREA.fit(newarea); | |
824 data.zoomArea = newarea; | |
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825 redisplay(data); |
643 | 826 }; |
827 | |
647 | 828 // add a mark where clicked |
829 var setMark = function (data) { | |
649 | 830 var $scaler = data.$scaler; |
647 | 831 console.debug("setmark"); |
832 // start event capturing | |
649 | 833 $scaler.one('click.digilib', function (evt) { |
647 | 834 // event handler adding a new mark |
835 console.debug("setmark.click evt=",evt); | |
836 var mpos = geom.position(evt.pageX, evt.pageY); | |
837 var pos = data.imgTrafo.invtransform(mpos); | |
838 data.marks.push(pos); | |
839 redisplay(data); | |
649 | 840 return false; // do we even get here? |
647 | 841 }); |
842 }; | |
654 | 843 |
844 var zoomArea = function(data) { | |
845 $elem = data.$elem; | |
846 $scaler = data.$scaler; | |
847 var pt1, pt2; | |
848 var $zoomDiv = $('<div class="zoomrect" style="display:none"/>'); | |
849 $elem.append($zoomDiv); | |
850 //var overlay = getElement("overlay"); | |
851 // use overlay div to avoid <img> mousemove problems | |
852 var picRect = geom.rectangle($scaler); | |
853 // FIX ME: is there a way to query the border width from CSS info? | |
854 // rect.x -= 2; // account for overlay borders | |
855 // rect.y -= 2; | |
856 //moveElement(overlay, picRect); | |
857 //showElement(overlay, true); | |
858 // start event capturing | |
859 //registerEvent("mousedown", overlay, zoomStart); | |
860 //registerEvent("mousedown", this.scalerImg, zoomStart); | |
861 | |
862 var zoomStart = function (evt) { | |
863 pt1 = geom.position(evt); | |
864 // setup and show zoom div | |
865 //moveElement(zoomdiv, Rectangle(pt1.x, pt1.y, 0, 0)); | |
866 $zoomDiv.offset({left : pt1.x, top : pt1.y}); | |
867 $zoomDiv.show(); | |
868 // register events | |
869 $elem.bind("mousemove.digilib", zoomMove); | |
870 $elem.bind("mouseup.digilib", zoomEnd); | |
871 return false; | |
872 }; | |
873 | |
874 // mouseup handler: end moving | |
875 var zoomEnd = function (evt) { | |
876 pt2 = geom.position(evt); | |
877 // assume a click and continue if the area is too small | |
878 var clickRect = geom.rectangle(pt1, pt2); | |
879 clickRect.normalize(); | |
880 console.debug("clickRect.getArea()=",clickRect.getArea()); | |
881 if (clickRect.getArea() <= 5) { | |
882 return false; | |
883 } | |
884 // hide zoom div | |
885 $zoomDiv.remove(); | |
886 // unregister events | |
887 $elem.unbind("mousemove.digilib", zoomMove); | |
888 $elem.unbind("mouseup.digilib", zoomEnd); | |
889 // clip and transform | |
890 clickRect.clipTo(picRect); | |
891 var area = data.imgTrafo.invtransform(clickRect); | |
892 data.zoomArea = area; | |
893 // zoomed is always fit | |
894 data.settings.ws = 1; | |
895 redisplay(data); | |
896 return false; | |
897 }; | |
898 | |
899 // mouse move handler | |
900 var zoomMove = function (evt) { | |
901 pt2 = geom.position(evt); | |
902 var rect = geom.rectangle(pt1, pt2); | |
903 rect.normalize(); | |
904 rect.clipTo(picRect); | |
905 // update zoom div | |
906 $zoomDiv.offset({left : rect.x, top : rect.y}); | |
907 $zoomDiv.width(rect.width).height(rect.height); | |
908 return false; | |
909 }; | |
910 | |
911 // bind start zoom handler | |
912 $scaler.one('mousedown.digilib', zoomStart); | |
913 }; | |
647 | 914 |
650 | 915 // sets a key to a value (relative values with +/- if relative=true) |
916 var setNumValue = function(settings, key, value) { | |
917 if (isNumber(value)) return settings[key] = value; | |
918 var sign = value.substring(0,1); | |
919 if (sign === '+' || sign === '-') { | |
920 if (settings[key] == null) { | |
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921 // this isn't perfect but still... |
650 | 922 settings[key] = 0; |
923 } | |
924 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
925 } else { | |
926 settings[key] = value; | |
927 } | |
928 return settings[key]; | |
929 }; | |
655 | 930 |
931 // auxiliary function (from old dllib.js) | |
659 | 932 isFullArea = function(area) { |
933 return (area.width === 1.0) && (area.height === 1.0); | |
655 | 934 }; |
935 | |
641 | 936 // auxiliary function (from Douglas Crockford, A.10) |
937 var isNumber = function isNumber(value) { | |
938 return typeof value === 'number' && isFinite(value); | |
939 }; | |
655 | 940 |
631 | 941 // auxiliary function to crop senseless precision |
942 var cropFloat = function (x) { | |
637 | 943 return parseInt(10000 * x, 10) / 10000; |
631 | 944 }; |
655 | 945 |
605 | 946 // hook plugin into jquery |
651
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947 $.fn.digilib = function(action) { |
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948 if (actions[action]) { |
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949 // call action on this with the remaining arguments (inserting data as first argument) |
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950 var $elem = $(this); |
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951 var data = $elem.data('digilib'); |
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952 var args = Array.prototype.slice.call(arguments, 1); |
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953 args.unshift(data); |
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954 return actions[action].apply(this, args); |
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955 } else if (typeof(action) === 'object' || !action) { |
634 | 956 // call init on this |
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957 return actions.init.apply(this, arguments); |
605 | 958 } else { |
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959 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
605 | 960 } |
961 }; | |
604 | 962 |
963 })(jQuery); |