Mercurial > hg > digilib-old
annotate client/digitallibrary/jquery/jquery.digilib.js @ 653:b21c1a539af3 jquery
fixed dumb bug
| author | robcast |
|---|---|
| date | Thu, 20 Jan 2011 20:21:11 +0100 |
| parents | 01557c5e0682 |
| children | b3c05e1568cf 72acc47f1831 |
| 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 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 : { | |
| 33 onclick : "javascript:zoomArea()", | |
| 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 : { | |
| 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 = { |
| 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, |
| 612 | 186 // path to button images (must end with a slash) |
| 187 'buttonsImagePath' : '../greyskin/', | |
| 652 | 188 // button groups |
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189 //'buttonsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","back","fwd","page","bird","SEP","help","reset","options"], |
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190 'buttonsStandard' : ["reference","zoomin","zoomout","zoomarea","zoomfull","pagewidth","mark","delmark","back","fwd","page","bird","SEP","help","reset","options"], |
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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}, |
| 616 | 197 // is the "about" window shown? |
| 198 'isAboutDivVisible' : false | |
| 199 | |
| 610 | 200 }; |
| 605 | 201 |
| 608 | 202 // affine geometry classes |
| 203 var geom = dlGeometry(); | |
| 604 | 204 |
| 643 | 205 var MAX_ZOOMAREA = geom.rectangle(0, 0, 1, 1); |
| 206 | |
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207 var actions = { |
| 608 | 208 // digilib initialization |
| 604 | 209 init : function(options) { |
| 608 | 210 // settings for this digilib instance are merged from defaults and options |
| 607 | 211 var settings = $.extend({}, defaults, options); |
| 636 | 212 var isFullscreen = settings.interactionMode === 'fullscreen'; |
| 213 var queryParams = {}; | |
| 607 | 214 if (isFullscreen) { |
| 215 queryParams = parseQueryParams(); | |
| 652 | 216 // check scalerBaseUrl |
| 217 if (settings.scalerBaseUrl == null) { | |
| 218 // try the host this came from | |
| 219 var h = window.location.host; | |
| 220 if (window.location.host) { | |
| 221 var url = window.location.href; | |
| 222 // assume the page lives in [webapp]/jquery/ | |
| 223 var pos = url.indexOf('jquery/'); | |
| 224 if (pos > 0) { | |
| 225 settings.scalerBaseUrl = url.substring(0, pos) + 'servlet/Scaler'; | |
| 226 } | |
| 227 } | |
| 228 } | |
| 636 | 229 } |
| 604 | 230 return this.each(function() { |
| 605 | 231 var $elem = $(this); |
| 232 var data = $elem.data('digilib'); | |
| 607 | 233 var elemSettings; |
| 608 | 234 // if the plugin hasn't been initialized yet |
| 604 | 235 if (!data) { |
| 605 | 236 // merge query parameters |
| 607 | 237 if (isFullscreen) { |
| 238 elemSettings = $.extend({}, settings, queryParams); | |
| 239 } else { | |
| 240 elemSettings = $.extend({}, settings, parseImgParams($elem)); | |
| 634 | 241 } |
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242 // store $(this) element in the settings |
| 627 | 243 data = { |
| 647 | 244 $elem : $elem, |
| 636 | 245 settings : elemSettings, |
| 246 queryParams : queryParams | |
| 627 | 247 }; |
| 605 | 248 // store in data element |
| 627 | 249 $elem.data('digilib', data); |
| 604 | 250 } |
| 633 | 251 unpackParams(data); |
| 608 | 252 // create HTML structure |
| 627 | 253 setupScalerDiv(data); |
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254 setupButtons(data, 'buttonsStandard'); |
| 639 | 255 // bird's eye view creation |
| 256 if (settings.isBirdDivVisible) { | |
| 641 | 257 setupBirdDiv(data); |
| 639 | 258 } |
| 627 | 259 // about window creation - TODO: could be deferred? restrict to only one item? |
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260 setupAboutDiv(data); |
| 604 | 261 }); |
| 262 }, | |
| 608 | 263 |
| 264 // clean up digilib | |
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265 destroy : function(data) { |
| 604 | 266 return this.each(function(){ |
| 636 | 267 var $elem = $(this); |
| 604 | 268 // Namespacing FTW |
| 605 | 269 $(window).unbind('.digilib'); // unbinds all digilibs(?) |
| 604 | 270 data.digilib.remove(); |
| 636 | 271 $elem.removeData('digilib'); |
| 604 | 272 }); |
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273 }, |
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274 |
| 635 | 275 // show or hide the 'about' window |
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276 showAboutDiv : function(data, show) { |
| 635 | 277 data.settings.isAboutDivVisible = showDiv(data.settings.isAboutDivVisible, data.$aboutDiv, show); |
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278 }, |
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279 |
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280 // event handler: toggles the visibility of the bird's eye window |
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281 showBirdDiv : function (data, show) { |
| 638 | 282 if (data.$birdDiv == null) { |
| 283 // no bird div -> create | |
| 284 setupBirdDiv(data); | |
| 285 } | |
| 635 | 286 data.settings.isBirdDivVisible = showDiv(data.settings.isBirdDivVisible, data.$birdDiv, show); |
| 623 | 287 }, |
| 288 | |
| 289 // goto given page nr (+/-: relative) | |
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290 gotoPage : function (data, pageNr) { |
| 636 | 291 var settings = data.settings; |
| 623 | 292 var oldpn = settings.pn; |
| 624 | 293 var pn = setNumValue(settings, "pn", pageNr); |
| 294 if (pn == null) return false; // nothing happened | |
| 623 | 295 if (pn < 1) { |
| 296 alert("no such page (page number too low)"); | |
| 297 settings.pn = oldpn; | |
| 298 return false; | |
| 634 | 299 } |
| 623 | 300 if (settings.pt) { |
| 301 if (pn > settings.pt) { | |
| 302 alert("no such page (page number too high)"); | |
| 303 settings.pn = oldpn; | |
| 304 return false; | |
| 305 } | |
| 634 | 306 } |
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307 // reset mk and others(?) |
| 643 | 308 data.marks = []; |
| 309 data.zoomArea = MAX_ZOOMAREA; | |
| 636 | 310 // then reload |
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311 redisplay(data); |
| 643 | 312 }, |
| 313 | |
| 314 // zoom by a given factor | |
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315 zoomBy : function (data, factor) { |
| 643 | 316 zoomBy(data, factor); |
| 647 | 317 }, |
| 318 | |
| 319 // zoom out to full page | |
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320 zoomFull : function (data, mode) { |
| 647 | 321 data.zoomArea = MAX_ZOOMAREA; |
| 650 | 322 if (mode === 'width') { |
| 323 data.dlOpts.fitwidth = 1; | |
| 324 delete data.dlOpts.fitheight; | |
| 325 } else if (mode === 'height') { | |
| 326 data.dlOpts.fitheight = 1; | |
| 327 delete data.dlOpts.fitwidth; | |
| 328 } else { | |
| 329 delete data.dlOpts.fitwidth; | |
| 330 delete data.dlOpts.fitheight; | |
| 331 } | |
| 647 | 332 redisplay(data); |
| 333 }, | |
| 334 | |
| 335 // set a mark by clicking (or giving a position) | |
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336 setMark : function (data, mpos) { |
| 647 | 337 if (mpos == null) { |
| 338 // interactive | |
| 339 setMark(data); | |
| 340 } else { | |
| 341 // use position | |
| 342 data.marks.push(pos); | |
| 343 redisplay(data); | |
| 344 } | |
| 650 | 345 }, |
| 346 | |
| 347 // remove the last mark | |
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348 removeMark : function (data) { |
| 650 | 349 data.marks.pop(); |
| 350 redisplay(data); | |
| 604 | 351 } |
| 650 | 352 |
| 605 | 353 }; |
| 604 | 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 = ''; |
| 650 | 392 var nx = false; |
| 615 | 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 '&' |
| 650 | 397 if (nx) { |
| 398 paramString += '&'; | |
| 399 } else { | |
| 400 nx = true; | |
| 401 } | |
| 615 | 402 // add parm=val |
| 403 paramString += key + '=' + settings[key]; | |
| 643 | 404 } |
| 615 | 405 } |
| 406 return paramString; | |
| 631 | 407 }; |
| 408 | |
| 636 | 409 // returns URL and query string for Scaler |
| 410 var getScalerUrl = function (data) { | |
| 653 | 411 var settings = data.settings; |
| 652 | 412 if (settings.scalerBaseUrl == null) { |
| 413 alert("ERROR: URL of digilib Scaler servlet missing!"); | |
| 414 } | |
| 636 | 415 var keys = settings.scalerParamNames; |
| 643 | 416 var queryString = getParamString(settings, keys, defaults); |
| 636 | 417 var url = settings.scalerBaseUrl + '?' + queryString; |
| 418 return url; | |
| 419 }; | |
| 420 | |
| 421 // returns URL and query string for current digilib | |
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422 var getDigilibUrl = function (data) { |
| 643 | 423 packParams(data); |
| 636 | 424 var settings = data.settings; |
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425 var queryString = getParamString(settings, settings.digilibParamNames, defaults); |
| 636 | 426 var url = window.location.toString(); |
| 427 var pos = url.indexOf('?'); | |
| 428 var baseUrl = url.substring(0, pos); | |
| 429 var newurl = baseUrl + '?' + queryString; | |
| 430 return newurl; | |
| 431 }; | |
| 432 | |
| 631 | 433 // processes some parameters into objects and stuff |
| 434 var unpackParams = function (data) { | |
| 435 var settings = data.settings; | |
| 636 | 436 // zoom area |
| 631 | 437 var zoomArea = geom.rectangle(settings.wx, settings.wy, settings.ww, settings.wh); |
| 643 | 438 data.zoomArea = zoomArea; |
| 636 | 439 // marks |
| 631 | 440 var marks = []; |
| 650 | 441 if (settings.mk) { |
| 442 var mk = settings.mk; | |
| 443 if (mk.indexOf(";") >= 0) { | |
| 444 var pa = mk.split(";"); // old format with ";" | |
| 445 } else { | |
| 446 var pa = mk.split(","); // new format | |
| 447 } | |
| 448 for (var i = 0; i < pa.length ; i++) { | |
| 449 var pos = pa[i].split("/"); | |
| 450 if (pos.length > 1) { | |
| 451 marks.push(geom.position(pos[0], pos[1])); | |
| 452 } | |
| 633 | 453 } |
| 631 | 454 } |
| 643 | 455 data.marks = marks; |
| 650 | 456 // mo (Scaler flags) |
| 457 var flags = {}; | |
| 458 if (settings.mo) { | |
| 459 var pa = settings.mo.split(","); | |
| 460 for (var i = 0; i < pa.length ; i++) { | |
| 461 flags[pa[i]] = pa[i]; | |
| 462 } | |
| 463 } | |
| 464 data.scalerFlags = flags; | |
| 465 // clop (digilib options) | |
| 466 var opts = {}; | |
| 467 if (settings.clop) { | |
| 468 var pa = settings.clop.split(","); | |
| 469 for (var i = 0; i < pa.length ; i++) { | |
| 470 opts[pa[i]] = pa[i]; | |
| 471 } | |
| 472 } | |
| 473 data.dlOpts = opts; | |
| 631 | 474 }; |
| 475 | |
| 476 // put objects back into parameters | |
| 477 var packParams = function (data) { | |
| 478 var settings = data.settings; | |
| 636 | 479 // zoom area |
| 643 | 480 if (data.zoomArea) { |
| 647 | 481 settings.wx = cropFloat(data.zoomArea.x); |
| 482 settings.wy = cropFloat(data.zoomArea.y); | |
| 483 settings.ww = cropFloat(data.zoomArea.width); | |
| 484 settings.wh = cropFloat(data.zoomArea.height); | |
| 631 | 485 } |
| 636 | 486 // marks |
| 643 | 487 if (data.marks) { |
| 650 | 488 settings.mk = ''; |
| 643 | 489 for (var i = 0; i < data.marks.length; i++) { |
| 650 | 490 if (i) { |
| 491 settings.mk += ','; | |
| 492 } | |
| 493 settings.mk += cropFloat(data.marks[i].x).toString() + '/' + cropFloat(data.marks[i].y).toString(); | |
| 631 | 494 } |
| 650 | 495 } |
| 496 // Scaler flags | |
| 497 if (data.scalerFlags) { | |
| 498 var mo = ''; | |
| 499 for (var f in data.scalerFlags) { | |
| 500 if (mo) { | |
| 501 mo += ','; | |
| 502 } | |
| 503 mo += f; | |
| 504 } | |
| 505 settings.mo = mo; | |
| 506 } | |
| 507 // digilib options | |
| 508 if (data.dlOpts) { | |
| 509 var clop = ''; | |
| 510 for (var o in data.dlOpts) { | |
| 511 if (clop) { | |
| 512 clop += ','; | |
| 513 } | |
| 514 clop += o; | |
| 515 } | |
| 516 settings.clop = clop; | |
| 631 | 517 } |
| 518 }; | |
| 519 | |
| 609 | 520 // returns maximum size for scaler img in fullscreen mode |
| 521 var getFullscreenImgSize = function($elem) { | |
| 522 var winH = $(window).height(); | |
| 523 var winW = $(window).width(); | |
| 524 // TODO: account for borders? | |
| 525 return geom.size(winW, winH); | |
| 608 | 526 }; |
| 527 | |
| 622 | 528 // (re)load the img from a new scaler URL |
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529 var redisplay = function (data) { |
| 636 | 530 var settings = data.settings; |
| 531 if (settings.interactionMode === 'fullscreen') { | |
| 532 // update location.href (browser URL) in fullscreen mode | |
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533 var url = getDigilibUrl(data); |
| 636 | 534 var history = window.history; |
| 535 if (typeof(history.pushState) === 'function') { | |
| 536 console.debug("we could modify history, but we don't..."); | |
| 537 } | |
| 538 window.location = url; | |
| 539 } else { | |
| 540 // embedded mode -- just change img src | |
| 541 var url = getScalerUrl(data); | |
| 542 data.$img.attr('src', url); | |
| 543 } | |
| 622 | 544 }; |
| 545 | |
| 608 | 546 // creates HTML structure for digilib in elem |
| 627 | 547 var setupScalerDiv = function (data) { |
| 548 var settings = data.settings; | |
| 647 | 549 var $elem = data.$elem; |
| 623 | 550 var $img; |
| 608 | 551 if (settings.interactionMode === 'fullscreen') { |
| 609 | 552 // fullscreen |
| 553 var imgSize = getFullscreenImgSize($elem); | |
| 650 | 554 // fitwidth/height omits destination height/width |
| 555 if (data.dlOpts['fitheight'] == null) { | |
| 556 settings.dw = imgSize.width; | |
| 557 } | |
| 558 if (data.dlOpts['fitwidth'] == null) { | |
| 559 settings.dh = imgSize.height; | |
| 560 } | |
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561 $img = $('<img/>'); |
| 636 | 562 var scalerUrl = getScalerUrl(data); |
| 563 $img.attr('src', scalerUrl); | |
| 609 | 564 } else { |
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565 // embedded mode -- try to keep img tag |
| 623 | 566 $img = $elem.find('img'); |
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567 if ($img.length > 0) { |
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568 console.debug("img detach:",$img); |
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569 $img.detach(); |
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570 } else { |
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571 $img = $('<img/>'); |
| 636 | 572 var scalerUrl = getScalerUrl(data); |
| 573 $img.attr('src', scalerUrl); | |
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574 } |
| 608 | 575 } |
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576 // create new html |
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577 $elem.empty(); // TODO: should we keep stuff for customization? |
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578 var $scaler = $('<div class="scaler"/>'); |
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579 $elem.append($scaler); |
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580 $scaler.append($img); |
| 622 | 581 $img.addClass('pic'); |
| 649 | 582 data.$scaler = $scaler; |
| 636 | 583 data.$img = $img; |
| 584 $img.load(scalerImgLoadedHandler(data)); | |
| 608 | 585 }; |
| 615 | 586 |
| 610 | 587 // creates HTML structure for buttons in elem |
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588 var setupButtons = function (data, actionGroup) { |
| 647 | 589 var $elem = data.$elem; |
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590 var settings = data.settings; |
| 610 | 591 if (settings.interactionMode === 'fullscreen') { |
| 592 // fullscreen -- create new | |
| 612 | 593 var $buttonsDiv = $('<div class="buttons"></div>'); |
| 594 $elem.append($buttonsDiv); | |
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595 var actionNames = settings[actionGroup]; |
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596 for (var i = 0; i < actionNames.length; i++) { |
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597 var actionName = actionNames[i]; |
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598 var buttonSettings = settings.buttons[actionName]; |
| 612 | 599 // construct the button html |
| 600 var $button = $('<div class="button"></div>'); | |
| 601 var $a = $('<a/>'); | |
| 614 | 602 var $img = $('<img class="button"/>'); |
| 612 | 603 $buttonsDiv.append($button); |
| 604 $button.append($a); | |
| 605 $a.append($img); | |
| 606 // add attributes and bindings | |
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607 $button.attr('title', buttonSettings.tooltip); |
|
618
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608 $button.addClass('button-' + actionName); |
| 635 | 609 // create handler for the buttons |
| 649 | 610 $a.bind('click.digilib', (function () { |
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611 // we create a new closure to capture the value of action |
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612 var action = buttonSettings.onclick; |
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613 if ($.isArray(action)) { |
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614 // the handler function calls digilib with action and parameters |
| 649 | 615 return function (evt) { |
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616 console.debug('click action=', action, ' evt=', evt); |
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617 $elem.digilib.apply($elem, action); |
| 649 | 618 return false; |
| 619 | 619 }; |
| 635 | 620 } else { |
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621 // the handler function calls digilib with action |
| 649 | 622 return function (evt) { |
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623 console.debug('click action=', action, ' evt=', evt); |
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624 $elem.digilib(action); |
| 649 | 625 return false; |
| 635 | 626 }; |
| 627 } | |
| 628 })()); | |
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629 $img.attr('src', settings.buttonsImagePath + buttonSettings.img); |
| 637 | 630 } |
| 611 | 631 } |
| 612 | 632 return $buttonsDiv; |
| 610 | 633 }; |
| 615 | 634 |
| 635 // creates HTML structure for the bird's eye view in elem | |
| 638 | 636 var setupBirdDiv = function (data) { |
| 647 | 637 var $elem = data.$elem; |
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638 var settings = data.settings; |
| 615 | 639 // use only the relevant parameters |
| 640 var keys = ['fn','pn','dw','dh']; | |
| 639 | 641 var birdSettings = $.extend({}, settings, settings.birdDivOptions); |
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642 var birdUrl = settings.scalerBaseUrl + '?' + getParamString(birdSettings, keys); |
| 615 | 643 // the bird's eye div |
| 625 | 644 var $birdviewDiv = $('<div class="birdview" style="display:none"/>'); |
| 615 | 645 // the detail indicator frame |
| 646 var $birdzoomDiv = $('<div class="birdzoom"/>'); | |
| 647 // the small image | |
| 648 var $birdImg = $('<img class="birdimg"/>'); | |
| 649 $elem.append($birdviewDiv); | |
| 650 $birdviewDiv.append($birdzoomDiv); | |
| 651 $birdviewDiv.append($birdImg); | |
| 652 $birdImg.attr('src', birdUrl); | |
|
640
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653 if (data.settings.isBirdDivVisible) { |
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654 $birdviewDiv.fadeIn(); |
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655 } |
| 635 | 656 data.$birdDiv = $birdviewDiv; |
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657 }; |
| 615 | 658 |
| 625 | 659 // creates HTML structure for the about view in elem |
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660 var setupAboutDiv = function (data) { |
| 647 | 661 var $elem = data.$elem; |
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662 var settings = data.settings; |
| 625 | 663 var $aboutDiv = $('<div class="about" style="display:none"/>'); |
| 616 | 664 var $header = $('<p>Digilib Graphic Viewer</p>'); |
| 665 var $link = $('<a/>'); | |
| 666 var $logo = $('<img class="logo" title="digilib"/>'); | |
| 667 var $content = $('<p/>'); | |
| 668 $elem.append($aboutDiv); | |
| 669 $aboutDiv.append($header); | |
| 670 $aboutDiv.append($link); | |
| 671 $aboutDiv.append($content); | |
| 672 $link.append($logo); | |
| 673 $logo.attr('src', settings.logoUrl); | |
| 635 | 674 $link.attr('href', settings.homeUrl); |
| 616 | 675 $content.text('Version: ' + settings.version); |
| 635 | 676 // click hides |
| 649 | 677 $aboutDiv.bind('click.digilib', function () { |
| 646 | 678 settings.isAboutDivVisible = showDiv(settings.isAboutDivVisible, $aboutDiv, 0); |
| 649 | 679 return false; |
| 680 }); | |
| 635 | 681 data.$aboutDiv = $aboutDiv; |
| 634 | 682 }; |
| 683 | |
| 635 | 684 // shows some window e.g. 'about' (toggle visibility if show is null) |
| 685 var showDiv = function (isVisible, $div, show) { | |
| 645 | 686 if (show == null) { |
| 635 | 687 // toggle visibility |
| 688 isVisible = !isVisible; | |
| 689 } else { | |
| 690 // set visibility | |
| 691 isVisible = show; | |
| 692 } | |
| 693 if (isVisible) { | |
| 694 $div.fadeIn(); | |
| 695 } else { | |
| 696 $div.fadeOut(); | |
| 697 } | |
| 698 return isVisible; | |
| 634 | 699 }; |
| 616 | 700 |
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701 // returns function for load event of scaler img |
| 636 | 702 var scalerImgLoadedHandler = function (data) { |
| 627 | 703 var settings = data.settings; |
| 647 | 704 var $elem = data.$elem; |
| 636 | 705 var $img = data.$img; |
| 627 | 706 |
| 633 | 707 return function () { |
| 627 | 708 console.debug("img loaded! this=", this, " data=", data); |
| 643 | 709 var area = data.zoomArea; |
| 627 | 710 // create Transform from current area and picsize |
| 711 var picpos = $img.offset(); | |
| 712 var picrect = geom.rectangle(picpos.left, picpos.top, $img.width(), $img.height()); | |
| 713 var trafo = geom.transform(); | |
| 714 // subtract area offset and size | |
| 647 | 715 trafo.concat(trafo.getTranslation(geom.position(- area.x, - area.y))); |
| 627 | 716 trafo.concat(trafo.getScale(geom.size(1/area.width, 1/area.height))); |
| 717 // scale to screen size | |
| 718 trafo.concat(trafo.getScale(picrect)); | |
| 719 trafo.concat(trafo.getTranslation(picrect)); | |
| 720 data.imgTrafo = trafo; | |
| 721 // display marks | |
| 633 | 722 renderMarks(data); |
| 627 | 723 //digilib.showArrows(); // show arrow overlays for zoom navigation |
| 641 | 724 // done -- hide about div --- |
| 725 // --- why? This only leads to suprise effects when displayed programmatically | |
| 726 // settings.isAboutDivVisible = showDiv(null, data.$aboutDiv, 0); | |
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727 }; |
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728 }; |
| 633 | 729 |
| 730 // place marks on the image | |
| 731 var renderMarks = function (data) { | |
| 647 | 732 var $elem = data.$elem; |
| 643 | 733 var marks = data.marks; |
| 649 | 734 // TODO: clear marks first(?) |
| 633 | 735 for (var i = 0; i < marks.length; i++) { |
| 736 var mark = marks[i]; | |
| 643 | 737 if (data.zoomArea.containsPosition(mark)) { |
| 633 | 738 var mpos = data.imgTrafo.transform(mark); |
| 739 // create mark | |
| 740 var html = '<div class="mark">'+(i+1)+'</div>'; | |
| 741 var $mark = $(html); | |
| 742 $elem.append($mark); | |
| 743 $mark.offset({ left : mpos.x, top : mpos.y}); | |
| 744 } | |
| 745 } | |
| 746 }; | |
| 631 | 747 |
| 647 | 748 // zooms by the given factor |
| 643 | 749 var zoomBy = function(data, factor) { |
| 750 var area = data.zoomArea; | |
| 751 var newarea = area.copy(); | |
| 752 // scale | |
| 753 newarea.width /= factor; | |
| 754 newarea.height /= factor; | |
| 755 // and recenter | |
| 756 newarea.x -= 0.5 * (newarea.width - area.width); | |
| 757 newarea.y -= 0.5 * (newarea.height - area.height); | |
| 758 newarea = MAX_ZOOMAREA.fit(newarea); | |
| 759 data.zoomArea = newarea; | |
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760 redisplay(data); |
| 643 | 761 }; |
| 762 | |
| 647 | 763 // add a mark where clicked |
| 764 var setMark = function (data) { | |
| 649 | 765 var $scaler = data.$scaler; |
| 647 | 766 console.debug("setmark"); |
| 767 // start event capturing | |
| 649 | 768 $scaler.one('click.digilib', function (evt) { |
| 647 | 769 // event handler adding a new mark |
| 770 console.debug("setmark.click evt=",evt); | |
| 771 var mpos = geom.position(evt.pageX, evt.pageY); | |
| 772 var pos = data.imgTrafo.invtransform(mpos); | |
| 773 data.marks.push(pos); | |
| 774 redisplay(data); | |
| 649 | 775 return false; // do we even get here? |
| 647 | 776 }); |
| 777 }; | |
| 778 | |
| 650 | 779 // sets a key to a value (relative values with +/- if relative=true) |
| 780 var setNumValue = function(settings, key, value) { | |
| 781 if (isNumber(value)) return settings[key] = value; | |
| 782 var sign = value.substring(0,1); | |
| 783 if (sign === '+' || sign === '-') { | |
| 784 if (settings[key] == null) { | |
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785 // this isn't perfect but still... |
| 650 | 786 settings[key] = 0; |
| 787 } | |
| 788 settings[key] = parseFloat(settings[key]) + parseFloat(value); | |
| 789 } else { | |
| 790 settings[key] = value; | |
| 791 } | |
| 792 return settings[key]; | |
| 793 }; | |
| 794 | |
| 641 | 795 // auxiliary function (from Douglas Crockford, A.10) |
| 796 var isNumber = function isNumber(value) { | |
| 797 return typeof value === 'number' && isFinite(value); | |
| 798 }; | |
| 799 | |
| 631 | 800 // auxiliary function to crop senseless precision |
| 801 var cropFloat = function (x) { | |
| 637 | 802 return parseInt(10000 * x, 10) / 10000; |
| 631 | 803 }; |
| 636 | 804 |
| 605 | 805 // hook plugin into jquery |
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806 $.fn.digilib = function(action) { |
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807 if (actions[action]) { |
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808 // call action on this with the remaining arguments (inserting data as first argument) |
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809 var $elem = $(this); |
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810 var data = $elem.data('digilib'); |
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811 var args = Array.prototype.slice.call(arguments, 1); |
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812 args.unshift(data); |
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813 return actions[action].apply(this, args); |
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814 } else if (typeof(action) === 'object' || !action) { |
| 634 | 815 // call init on this |
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816 return actions.init.apply(this, arguments); |
| 605 | 817 } else { |
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818 $.error( 'action ' + action + ' does not exist on jQuery.digilib' ); |
| 605 | 819 } |
| 820 }; | |
| 604 | 821 |
| 822 })(jQuery); |