Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 648:64cc32ec25de jquery
merge
with 83cc0c96612d0cf2c405dadffb66c427cbb23046
| author | robcast |
|---|---|
| date | Thu, 20 Jan 2011 13:02:22 +0100 |
| parents | 2e817524992e 83cc0c96612d |
| children | fd526464ae87 |
| rev | line source |
|---|---|
| 604 | 1 /* |
| 2 * digilib jQuery plugin | |
| 3 * | |
| 4 */ | |
| 636 | 5 |
| 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 actions = { |
| 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 : { | |
| 33 onclick : "javascript:zoomArea()", | |
| 34 tooltip : "zoom area", | |
| 35 img : "zoom-area.png" | |
| 36 }, | |
| 37 zoomfull : { | |
| 647 | 38 onclick : "zoomFullpage", |
| 610 | 39 tooltip : "view the whole image", |
| 40 img : "zoom-full.png" | |
| 41 }, | |
| 42 pagewidth : { | |
| 43 onclick : "javascript:zoomFullpage('width')", | |
| 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 : { | |
| 83 onclick : "javascript:removeMark()", | |
| 84 tooltip : "delete the last mark", | |
| 85 img : "delmark.png" | |
| 86 }, | |
| 87 hmir : { | |
| 88 onclick : "javascript:mirror('h')", | |
| 89 tooltip : "mirror horizontally", | |
| 90 img : "mirror-horizontal.png" | |
| 91 }, | |
| 92 vmir : { | |
| 93 onclick : "javascript:mirror('v')", | |
| 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 = { |
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148 // the root digilib element, for easy retrieval |
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149 'digilibRoot' : null, |
| 616 | 150 // version of this script |
| 635 | 151 'version' : 'jquery.digilib.js 0.9', |
| 616 | 152 // logo url |
| 153 'logoUrl' : '../img/digilib-logo-text1.png', | |
| 635 | 154 // homepage url (behind logo) |
| 155 'homeUrl' : 'http://digilib.berlios.de', | |
| 610 | 156 // base URL to Scaler servlet |
| 157 'scalerBaseUrl' : 'http://digilib.mpiwg-berlin.mpg.de/digitallibrary/servlet/Scaler', | |
| 158 // list of Scaler parameters | |
| 627 | 159 'scalerParamNames' : ['fn','pn','dw','dh','ww','wh','wx','wy','ws','mo', |
| 160 'rot','cont','brgt','rgbm','rgba','ddpi','ddpix','ddpiy'], | |
| 161 // Scaler parameter defaults | |
| 643 | 162 'pn' : 1, |
| 627 | 163 'ww' : 1.0, |
| 164 'wh' : 1.0, | |
| 165 'wx' : 0.0, | |
| 166 'wy' : 0.0, | |
| 167 'ws' : 1.0, | |
| 643 | 168 'mo' : '', |
| 169 'rot' : 0, | |
| 170 'cont' : 0, | |
| 171 'brgt' : 0, | |
| 172 'rgbm' : '0/0/0', | |
| 173 'rgba' : '0/0/0', | |
| 174 'ddpi' : null, | |
| 175 'ddpix' : null, | |
| 176 'ddpiy' : null, | |
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177 // list of digilib parameters |
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178 'digilibParamNames' : ['fn','pn','ww','wh','wx','wy','ws','mo','rot','cont','brgt','rgbm','rgba', |
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179 'mk'], |
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180 // digilib parameter defaults |
| 643 | 181 'mk' : '', |
| 182 // mode of operation: | |
| 183 // fullscreen = take parameters from page URL, keep state in page URL | |
| 184 // embedded = take parameters from Javascript options, keep state inside object | |
| 610 | 185 'interactionMode' : 'fullscreen', |
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186 // actions |
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187 'actions' : actions, |
| 612 | 188 // path to button images (must end with a slash) |
| 189 'buttonsImagePath' : '../greyskin/', | |
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190 // actions groups |
| 647 | 191 'actionsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","back","fwd","page","bird","SEP","help","reset","options"], |
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192 'actionsSpecial' : ["mark","delmark","hmir","vmir","rot","brgt","cont","rgb","quality","size","calibrationx","scale","SEP","options"], |
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193 'actionsCustom' : [], |
| 616 | 194 // is birdView shown? |
| 195 'isBirdDivVisible' : false, | |
| 615 | 196 // dimensions of bird's eye window |
| 639 | 197 'birdDivOptions' : {'dw' : 200, 'dh' : 200}, |
| 616 | 198 // is the "about" window shown? |
| 199 'isAboutDivVisible' : false | |
| 200 | |
| 610 | 201 }; |
| 605 | 202 |
| 608 | 203 // affine geometry classes |
| 204 var geom = dlGeometry(); | |
| 604 | 205 |
| 643 | 206 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 207 | |
| 604 | 208 var methods = { |
| 608 | 209 // digilib initialization |
| 604 | 210 init : function(options) { |
| 608 | 211 // settings for this digilib instance are merged from defaults and options |
| 607 | 212 var settings = $.extend({}, defaults, options); |
| 636 | 213 var isFullscreen = settings.interactionMode === 'fullscreen'; |
| 214 var queryParams = {}; | |
| 607 | 215 if (isFullscreen) { |
| 216 queryParams = parseQueryParams(); | |
| 636 | 217 } |
| 604 | 218 return this.each(function() { |
| 605 | 219 var $elem = $(this); |
| 220 var data = $elem.data('digilib'); | |
| 607 | 221 var elemSettings; |
| 608 | 222 // if the plugin hasn't been initialized yet |
| 604 | 223 if (!data) { |
| 605 | 224 // merge query parameters |
| 607 | 225 if (isFullscreen) { |
| 226 elemSettings = $.extend({}, settings, queryParams); | |
| 227 } else { | |
| 228 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 634 | 229 } |
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230 // store $(this) element in the settings |
| 627 | 231 data = { |
| 647 | 232 $elem : $elem, |
| 636 | 233 settings : elemSettings, |
| 234 queryParams : queryParams | |
| 627 | 235 }; |
| 605 | 236 // store in data element |
| 627 | 237 $elem.data('digilib', data); |
| 604 | 238 } |
| 633 | 239 unpackParams(data); |
| 608 | 240 // create HTML structure |
| 627 | 241 setupScalerDiv(data); |
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242 setupButtons(data, 'actionsStandard'); |
| 639 | 243 // bird's eye view creation |
| 244 if (settings.isBirdDivVisible) { | |
| 641 | 245 setupBirdDiv(data); |
| 639 | 246 } |
| 627 | 247 // about window creation - TODO: could be deferred? restrict to only one item? |
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248 setupAboutDiv(data); |
| 604 | 249 }); |
| 250 }, | |
| 608 | 251 |
| 252 // clean up digilib | |
| 604 | 253 destroy : function() { |
| 254 return this.each(function(){ | |
| 636 | 255 var $elem = $(this); |
| 256 var data = $elem.data('digilib'); | |
| 604 | 257 // Namespacing FTW |
| 605 | 258 $(window).unbind('.digilib'); // unbinds all digilibs(?) |
| 604 | 259 data.digilib.remove(); |
| 636 | 260 $elem.removeData('digilib'); |
| 604 | 261 }); |
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262 }, |
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263 |
| 635 | 264 // show or hide the 'about' window |
| 265 showAboutDiv : function(show) { | |
| 636 | 266 var $elem = $(this); |
| 267 var data = $elem.data('digilib'); | |
| 635 | 268 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
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269 }, |
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270 |
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271 // event handler: toggles the visibility of the bird's eye window |
| 635 | 272 showBirdDiv : function (show) { |
| 636 | 273 var $elem = $(this); |
| 274 var data = $elem.data('digilib'); | |
| 638 | 275 if (data.$birdDiv == null) { |
| 276 // no bird div -> create | |
| 277 setupBirdDiv(data); | |
| 278 } | |
| 635 | 279 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); |
| 623 | 280 }, |
| 281 | |
| 282 // goto given page nr (+/-: relative) | |
| 636 | 283 gotoPage : function (pageNr) { |
| 643 | 284 var $elem = $(this); |
| 636 | 285 var data = $elem.data('digilib'); |
| 286 var settings = data.settings; | |
| 623 | 287 var oldpn = settings.pn; |
| 624 | 288 var pn = setNumValue(settings, "pn", pageNr); |
| 289 if (pn == null) return false; // nothing happened | |
| 623 | 290 if (pn < 1) { |
| 291 alert("no such page (page number too low)"); | |
| 292 settings.pn = oldpn; | |
| 293 return false; | |
| 634 | 294 } |
| 623 | 295 if (settings.pt) { |
| 296 if (pn > settings.pt) { | |
| 297 alert("no such page (page number too high)"); | |
| 298 settings.pn = oldpn; | |
| 299 return false; | |
| 300 } | |
| 634 | 301 } |
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302 // reset mk and others(?) |
| 643 | 303 data.marks = []; |
| 304 data.zoomArea = MAX_ZOOMAREA; | |
| 636 | 305 // then reload |
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306 redisplay(data); |
| 643 | 307 }, |
| 308 | |
| 309 // zoom by a given factor | |
| 310 zoomBy : function (factor) { | |
| 311 var $elem = $(this); | |
| 312 var data = $elem.data('digilib'); | |
| 313 zoomBy(data, factor); | |
| 647 | 314 }, |
| 315 | |
| 316 // zoom out to full page | |
| 317 zoomFullpage : function () { | |
| 318 var $elem = $(this); | |
| 319 var data = $elem.data('digilib'); | |
| 320 data.zoomArea = MAX_ZOOMAREA; | |
| 321 redisplay(data); | |
| 322 }, | |
| 323 | |
| 324 // set a mark by clicking (or giving a position) | |
| 325 setMark : function (mpos) { | |
| 326 var $elem = $(this); | |
| 327 var data = $elem.data('digilib'); | |
| 328 if (mpos == null) { | |
| 329 // interactive | |
| 330 setMark(data); | |
| 331 } else { | |
| 332 // use position | |
| 333 data.marks.push(pos); | |
| 334 redisplay(data); | |
| 335 } | |
| 604 | 336 } |
| 605 | 337 }; |
| 604 | 338 |
| 623 | 339 // sets a key to a value (relative values with +/- if relative=true) |
| 340 var setNumValue = function(settings, key, value) { | |
| 641 | 341 if (isNumber(value)) return settings[key] = value; |
| 623 | 342 var sign = value.substring(0,1); |
| 343 if (sign === '+' || sign === '-') { | |
| 637 | 344 if (settings[key] == null) { |
| 345 // this doesn't make much sense but still... | |
| 346 settings[key] = 0; | |
| 347 } | |
| 348 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 623 | 349 } else { |
| 350 settings[key] = value; | |
| 637 | 351 } |
| 623 | 352 return settings[key]; |
| 637 | 353 }; |
| 623 | 354 |
| 608 | 355 // returns parameters from page url |
| 607 | 356 var parseQueryParams = function() { |
| 636 | 357 return parseQueryString(window.location.search.slice(1)); |
| 358 }; | |
| 607 | 359 |
| 636 | 360 // returns parameters from embedded img-element |
| 607 | 361 var parseImgParams = function($elem) { |
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362 var src = $elem.find('img').first().attr('src'); |
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363 if (!src) { |
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364 return null; |
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365 } |
| 607 | 366 var pos = src.indexOf('?'); |
| 367 var query = (pos < 0) ? '' : src.substring(pos + 1); | |
| 368 var scalerUrl = src.substring(0, pos); | |
| 627 | 369 var params = parseQueryString(query); |
| 370 params.scalerBaseUrl = scalerUrl; | |
| 371 return params; | |
| 636 | 372 }; |
| 607 | 373 |
| 608 | 374 // parses query parameter string into parameter object |
| 607 | 375 var parseQueryString = function(query) { |
| 376 var pairs = query.split("&"); | |
| 627 | 377 var params = {}; |
| 636 | 378 //var keys = []; |
| 607 | 379 for (var i = 0; i < pairs.length; i++) { |
| 380 var pair = pairs[i].split("="); | |
| 381 if (pair.length === 2) { | |
| 627 | 382 params[pair[0]] = pair[1]; |
| 636 | 383 //keys.push(pair[0]); |
| 634 | 384 } |
| 636 | 385 } |
| 627 | 386 return params; |
| 636 | 387 }; |
| 604 | 388 |
| 643 | 389 // returns a query string from key names from a parameter hash (ignoring if the same value is in defaults) |
| 390 var getParamString = function (settings, keys, defaults) { | |
| 615 | 391 var paramString = ''; |
| 392 var latter = false; | |
| 393 for (i = 0; i < keys.length; ++i) { | |
| 394 var key = keys[i]; | |
| 643 | 395 if ((settings[key] != null) && ((defaults == null) || (settings[key] !== defaults[key]))) { |
| 615 | 396 // first param gets no '&' |
| 397 paramString += latter ? '&' : ''; | |
| 398 latter = true; | |
| 399 // add parm=val | |
| 400 paramString += key + '=' + settings[key]; | |
| 643 | 401 } |
| 615 | 402 } |
| 403 return paramString; | |
| 631 | 404 }; |
| 405 | |
| 636 | 406 // returns URL and query string for Scaler |
| 407 var getScalerUrl = function (data) { | |
| 408 var settings = data.settings; | |
| 409 var keys = settings.scalerParamNames; | |
| 643 | 410 var queryString = getParamString(settings, keys, defaults); |
| 636 | 411 var url = settings.scalerBaseUrl + '?' + queryString; |
| 412 return url; | |
| 413 }; | |
| 414 | |
| 415 // returns URL and query string for current digilib | |
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416 var getDigilibUrl = function (data) { |
| 643 | 417 packParams(data); |
| 636 | 418 var settings = data.settings; |
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419 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 636 | 420 var url = window.location.toString(); |
| 421 var pos = url.indexOf('?'); | |
| 422 var baseUrl = url.substring(0, pos); | |
| 423 var newurl = baseUrl + '?' + queryString; | |
| 424 return newurl; | |
| 425 }; | |
| 426 | |
| 631 | 427 // processes some parameters into objects and stuff |
| 428 var unpackParams = function (data) { | |
| 429 var settings = data.settings; | |
| 636 | 430 // zoom area |
| 631 | 431 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 432 data.zoomArea = zoomArea; |
| 636 | 433 // marks |
| 631 | 434 var marks = []; |
| 633 | 435 var mk = settings.mk || ''; |
| 436 if (mk.indexOf(";") >= 0) { | |
| 437 var pa = mk.split(";"); // old format with ";" | |
| 631 | 438 } else { |
| 633 | 439 var pa = mk.split(","); // new format |
| 631 | 440 } |
| 441 for (var i = 0; i < pa.length ; i++) { | |
| 442 var pos = pa[i].split("/"); | |
| 633 | 443 if (pos.length > 1) { |
| 444 marks.push(geom.position(pos[0], pos[1])); | |
| 445 } | |
| 631 | 446 } |
| 643 | 447 data.marks = marks; |
| 631 | 448 }; |
| 449 | |
| 450 // put objects back into parameters | |
| 451 var packParams = function (data) { | |
| 452 var settings = data.settings; | |
| 636 | 453 // zoom area |
| 643 | 454 if (data.zoomArea) { |
| 647 | 455 settings.wx = cropFloat(data.zoomArea.x); |
| 456 settings.wy = cropFloat(data.zoomArea.y); | |
| 457 settings.ww = cropFloat(data.zoomArea.width); | |
| 458 settings.wh = cropFloat(data.zoomArea.height); | |
| 631 | 459 } |
| 636 | 460 // marks |
| 643 | 461 if (data.marks) { |
| 631 | 462 var ma = []; |
| 643 | 463 for (var i = 0; i < data.marks.length; i++) { |
| 464 ma.push(cropFloat(data.marks[i].x) + "/" + cropFloat(data.marks[i].y)); | |
| 631 | 465 } |
| 466 settings.mk = ma.join(","); | |
| 467 } | |
| 468 }; | |
| 469 | |
| 609 | 470 // returns maximum size for scaler img in fullscreen mode |
| 471 var getFullscreenImgSize = function($elem) { | |
| 472 var winH = $(window).height(); | |
| 473 var winW = $(window).width(); | |
| 474 // TODO: account for borders? | |
| 475 return geom.size(winW, winH); | |
| 608 | 476 }; |
| 477 | |
| 622 | 478 // (re)load the img from a new scaler URL |
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479 var redisplay = function (data) { |
| 636 | 480 var settings = data.settings; |
| 481 if (settings.interactionMode === 'fullscreen') { | |
| 482 // update location.href (browser URL) in fullscreen mode | |
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483 var url = getDigilibUrl(data); |
| 636 | 484 var history = window.history; |
| 485 if (typeof(history.pushState) === 'function') { | |
| 486 console.debug("we could modify history, but we don't..."); | |
| 487 } | |
| 488 window.location = url; | |
| 489 } else { | |
| 490 // embedded mode -- just change img src | |
| 491 var url = getScalerUrl(data); | |
| 492 data.$img.attr('src', url); | |
| 493 } | |
| 622 | 494 }; |
| 495 | |
| 608 | 496 // creates HTML structure for digilib in elem |
| 627 | 497 var setupScalerDiv = function (data) { |
| 498 var settings = data.settings; | |
| 647 | 499 var $elem = data.$elem; |
| 623 | 500 var $img; |
| 608 | 501 if (settings.interactionMode === 'fullscreen') { |
| 609 | 502 // fullscreen |
| 503 var imgSize = getFullscreenImgSize($elem); | |
| 504 settings.dw = imgSize.width; | |
| 505 settings.dh = imgSize.height; | |
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506 $img = $('<img/>'); |
| 636 | 507 var scalerUrl = getScalerUrl(data); |
| 508 $img.attr('src', scalerUrl); | |
| 609 | 509 } else { |
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510 // embedded mode -- try to keep img tag |
| 623 | 511 $img = $elem.find('img'); |
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512 if ($img.length > 0) { |
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513 console.debug("img detach:",$img); |
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514 $img.detach(); |
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515 } else { |
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516 $img = $('<img/>'); |
| 636 | 517 var scalerUrl = getScalerUrl(data); |
| 518 $img.attr('src', scalerUrl); | |
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519 } |
| 608 | 520 } |
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521 // create new html |
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522 $elem.empty(); // TODO: should we keep stuff for customization? |
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523 var $scaler = $('<div class="scaler"/>'); |
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524 $elem.append($scaler); |
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525 $scaler.append($img); |
| 622 | 526 $img.addClass('pic'); |
| 636 | 527 data.$img = $img; |
| 528 $img.load(scalerImgLoadedHandler(data)); | |
| 608 | 529 }; |
| 615 | 530 |
| 610 | 531 // creates HTML structure for buttons in elem |
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532 var setupButtons = function (data, actionGroup) { |
| 647 | 533 var $elem = data.$elem; |
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534 var settings = data.settings; |
| 610 | 535 if (settings.interactionMode === 'fullscreen') { |
| 536 // fullscreen -- create new | |
| 612 | 537 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 538 $elem.append($buttonsDiv); | |
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539 var actionNames = settings[actionGroup]; |
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540 for (var i = 0; i < actionNames.length; i++) { |
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541 var actionName = actionNames[i]; |
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542 var actionSettings = settings.actions[actionName]; |
| 612 | 543 // construct the button html |
| 544 var $button = $('<div class="button"></div>'); | |
| 545 var $a = $('<a/>'); | |
| 614 | 546 var $img = $('<img class="button"/>'); |
| 612 | 547 $buttonsDiv.append($button); |
| 548 $button.append($a); | |
| 549 $a.append($img); | |
| 550 // add attributes and bindings | |
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551 $button.attr('title', actionSettings.tooltip); |
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552 $button.addClass('button-' + actionName); |
| 635 | 553 // create handler for the buttons |
| 554 $a.bind('click', (function () { | |
| 555 // we create a new closure to capture the value of method | |
| 556 var method = actionSettings.onclick; | |
| 619 | 557 if ($.isArray(method)) { |
| 635 | 558 // the handler function calls digilib with method and parameters |
| 559 return function () { | |
| 560 console.debug('click method=', method); | |
| 561 $elem.digilib.apply($elem, method); | |
| 619 | 562 }; |
| 635 | 563 } else { |
| 564 // the handler function calls digilib with method | |
| 565 return function () { | |
| 566 console.debug('click method=', method); | |
| 567 $elem.digilib(method); | |
| 568 }; | |
| 569 } | |
| 570 })()); | |
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571 $img.attr('src', settings.buttonsImagePath + actionSettings.img); |
| 637 | 572 } |
| 611 | 573 } |
| 612 | 574 return $buttonsDiv; |
| 610 | 575 }; |
| 615 | 576 |
| 577 // creates HTML structure for the bird's eye view in elem | |
| 638 | 578 var setupBirdDiv = function (data) { |
| 647 | 579 var $elem = data.$elem; |
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580 var settings = data.settings; |
| 615 | 581 // use only the relevant parameters |
| 582 var keys = ['fn','pn','dw','dh']; | |
| 639 | 583 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
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584 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 615 | 585 // the bird's eye div |
| 625 | 586 var $birdviewDiv = $('<div class="birdview" style="display:none"/>'); |
| 615 | 587 // the detail indicator frame |
| 588 var $birdzoomDiv = $('<div class="birdzoom"/>'); | |
| 589 // the small image | |
| 590 var $birdImg = $('<img class="birdimg"/>'); | |
| 591 $elem.append($birdviewDiv); | |
| 592 $birdviewDiv.append($birdzoomDiv); | |
| 593 $birdviewDiv.append($birdImg); | |
| 594 $birdImg.attr('src', birdUrl); | |
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595 if (data.settings.isBirdDivVisible) { |
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596 $birdviewDiv.fadeIn(); |
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597 } |
| 635 | 598 data.$birdDiv = $birdviewDiv; |
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599 }; |
| 615 | 600 |
| 625 | 601 // creates HTML structure for the about view in elem |
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602 var setupAboutDiv = function (data) { |
| 647 | 603 var $elem = data.$elem; |
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604 var settings = data.settings; |
| 625 | 605 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 616 | 606 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 607 var $link = $('<a/>'); | |
| 608 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 609 var $content = $('<p/>'); | |
| 610 $elem.append($aboutDiv); | |
| 611 $aboutDiv.append($header); | |
| 612 $aboutDiv.append($link); | |
| 613 $aboutDiv.append($content); | |
| 614 $link.append($logo); | |
| 615 $logo.attr('src', settings.logoUrl); | |
| 635 | 616 $link.attr('href', settings.homeUrl); |
| 616 | 617 $content.text('Version: ' + settings.version); |
| 635 | 618 // click hides |
| 646 | 619 $aboutDiv.bind('click', function () { |
| 620 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); | |
| 621 }); | |
| 635 | 622 data.$aboutDiv = $aboutDiv; |
| 634 | 623 }; |
| 624 | |
| 635 | 625 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 626 var showDiv = function (isVisible, $div, show) { | |
| 645 | 627 if (show == null) { |
| 635 | 628 // toggle visibility |
| 629 isVisible = !isVisible; | |
| 630 } else { | |
| 631 // set visibility | |
| 632 isVisible = show; | |
| 633 } | |
| 634 if (isVisible) { | |
| 635 $div.fadeIn(); | |
| 636 } else { | |
| 637 $div.fadeOut(); | |
| 638 } | |
| 639 return isVisible; | |
| 634 | 640 }; |
| 616 | 641 |
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642 // returns function for load event of scaler img |
| 636 | 643 var scalerImgLoadedHandler = function (data) { |
| 627 | 644 var settings = data.settings; |
| 647 | 645 var $elem = data.$elem; |
| 636 | 646 var $img = data.$img; |
| 627 | 647 |
| 633 | 648 return function () { |
| 627 | 649 console.debug("img loaded! this=", this, " data=", data); |
| 643 | 650 var area = data.zoomArea; |
| 627 | 651 // create Transform from current area and picsize |
| 652 var picpos = $img.offset(); | |
| 653 var picrect = geom.rectangle(picpos.left, picpos.top, $img.width(), $img.height()); | |
| 654 var trafo = geom.transform(); | |
| 655 // subtract area offset and size | |
| 647 | 656 trafo.concat(trafo.getTranslation(geom.position(- area.x, - area.y))); |
| 627 | 657 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 658 // scale to screen size | |
| 659 trafo.concat(trafo.getScale(picrect)); | |
| 660 trafo.concat(trafo.getTranslation(picrect)); | |
| 661 data.imgTrafo = trafo; | |
| 662 // display marks | |
| 633 | 663 renderMarks(data); |
| 627 | 664 //digilib.showArrows(); // show arrow overlays for zoom navigation |
| 641 | 665 // done -- hide about div --- |
| 666 // --- why? This only leads to suprise effects when displayed programmatically | |
| 667 // settings.isAboutDivVisible = showDiv(null, data.$aboutDiv, 0); | |
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668 }; |
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669 }; |
| 633 | 670 |
| 671 // place marks on the image | |
| 672 var renderMarks = function (data) { | |
| 647 | 673 var $elem = data.$elem; |
| 643 | 674 var marks = data.marks; |
| 633 | 675 for (var i = 0; i < marks.length; i++) { |
| 676 var mark = marks[i]; | |
| 643 | 677 if (data.zoomArea.containsPosition(mark)) { |
| 633 | 678 var mpos = data.imgTrafo.transform(mark); |
| 679 // create mark | |
| 680 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 681 var $mark = $(html); | |
| 682 $elem.append($mark); | |
| 683 $mark.offset({ left : mpos.x, top : mpos.y}); | |
| 684 } | |
| 685 } | |
| 686 }; | |
| 631 | 687 |
| 647 | 688 // zooms by the given factor |
| 643 | 689 var zoomBy = function(data, factor) { |
| 690 var area = data.zoomArea; | |
| 691 var newarea = area.copy(); | |
| 692 // scale | |
| 693 newarea.width /= factor; | |
| 694 newarea.height /= factor; | |
| 695 // and recenter | |
| 696 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 697 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 698 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 699 data.zoomArea = newarea; | |
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700 redisplay(data); |
| 643 | 701 }; |
| 702 | |
| 647 | 703 // add a mark where clicked |
| 704 var setMark = function (data) { | |
| 705 var $div = data.$elem; | |
| 706 var $img = data.$img; | |
| 707 console.debug("setmark"); | |
| 708 // start event capturing | |
| 709 $img.one('click.digilib', function (evt) { | |
| 710 // event handler adding a new mark | |
| 711 console.debug("setmark.click evt=",evt); | |
| 712 var mpos = geom.position(evt.pageX, evt.pageY); | |
| 713 var pos = data.imgTrafo.invtransform(mpos); | |
| 714 data.marks.push(pos); | |
| 715 redisplay(data); | |
| 716 //return stopEvent(evt); | |
| 717 }); | |
| 718 }; | |
| 719 | |
| 641 | 720 // auxiliary function (from Douglas Crockford, A.10) |
| 721 var isNumber = function isNumber(value) { | |
| 722 return typeof value === 'number' && isFinite(value); | |
| 723 }; | |
| 724 | |
| 631 | 725 // auxiliary function to crop senseless precision |
| 726 var cropFloat = function (x) { | |
| 637 | 727 return parseInt(10000 * x, 10) / 10000; |
| 631 | 728 }; |
| 636 | 729 |
| 605 | 730 // hook plugin into jquery |
| 731 $.fn.digilib = function(method) { | |
| 732 if (methods[method]) { | |
| 634 | 733 // call method on this with the remaining arguments |
| 605 | 734 return methods[method].apply(this, Array.prototype.slice.call(arguments, 1)); |
| 735 } else if (typeof(method) === 'object' || !method) { | |
| 634 | 736 // call init on this |
| 605 | 737 return methods.init.apply(this, arguments); |
| 738 } else { | |
| 634 | 739 $.error( 'Method ' + method + ' does not exist on jQuery.digilib' ); |
| 605 | 740 } |
| 741 }; | |
| 604 | 742 |
| 743 })(jQuery); |