digilib: client/digitallibrary/jquery/jquery.digilib.birdseye.js annotate

annotate client/digitallibrary/jquery/jquery.digilib.birdseye.js @ 801:2fb1f576375d jquery

stub for new plugins; overlay div for regions plugin

author	hertzhaft
date	Sun, 20 Feb 2011 13:24:49 +0100
parents	52c5595af03e
children	5627e5f09848

rev	line source
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	1 /**
52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	2 digilib bird's eye view plugin
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	3 */
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	4
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	5 (function($) {
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	6
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	7 // affine geometry plugin stub
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	8 var geom;
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	9
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	10 var FULL_AREA;
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	11
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	12 var buttons = {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	13 bird : {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	14 onclick : "showBirdDiv",
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	15 tooltip : "show bird's eye view",
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	16 icon : "birds-eye.png"
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	17 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	18 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	19
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	20 var defaults = {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	21 // is birdView shown?
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	22 'isBirdDivVisible' : false,
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	23 // dimensions of bird's eye div
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	24 'birdDivWidth' : 200,
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	25 'birdDivHeight' : 200,
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	26 // parameters used by bird's eye div
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	27 'birdDivParams' : ['fn','pn','dw','dh']
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	28 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	29
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	30 var actions = {
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	31 // event handler: toggles the visibility of the bird's eye window
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	32 showBirdDiv : function (data, show) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	33 var settings = data.settings;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	34 if (data.$birdDiv == null) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	35 // no bird div -> create
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	36 setupBirdDiv(data);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	37 }
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	38 var on = digilib.fn.showDiv(settings.isBirdDivVisible, data.$birdDiv, show);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	39 settings.isBirdDivVisible = on;
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	40 digilib.fn.highlightButtons(data, 'bird', on);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	41 updateBirdDiv(data);
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	42 digilib.fn.storeOptions(data);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	43 }
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	44 };
52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	45
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	46 // plugin installation called by digilib on plugin object.
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	47 var install = function(digilib) {
801 2fb1f576375d stub for new plugins; overlay div for regions plugin hertzhaft parents: 792 diff changeset	48 console.debug('installing birdseye plugin. digilib:', digilib);
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	49 // import geometry classes
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	50 geom = digilib.fn.geometry;
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	51 FULL_AREA = geom.rectangle(0,0,1,1);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	52 // add defaults
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	53 $.extend(digilib.defaults, defaults);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	54 // add actions
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	55 $.extend(digilib.actions, actions);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	56 // add buttons
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	57 $.extend(digilib.buttons, buttons);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	58 // insert in button list -- not elegant
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	59 digilib.defaults.buttonSettings.fullscreen.standardSet.splice(9, 0, 'bird');
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	60 digilib.defaults.buttonSettings.embedded.standardSet.splice(5, 0, 'bird');
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	61 };
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	62
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	63 // plugin initialization
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	64 var init = function (data) {
801 2fb1f576375d stub for new plugins; overlay div for regions plugin hertzhaft parents: 792 diff changeset	65 console.debug('initialising birdseye plugin. data:', data);
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	66 var $data = $(data);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	67 // install event handler
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	68 $data.bind('setup', handleSetup);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	69 $data.bind('update', handleUpdate);
789 32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	70 $data.bind('redisplay', handleRedisplay);
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	71 $data.bind('dragZoom', handleDragZoom);
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	72 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	73
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	74
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	75 var handleSetup = function (evt) {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	76 console.debug("birdseye: handleSetup");
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	77 data = this;
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	78 // bird's eye view creation
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	79 if (data.settings.isBirdDivVisible) {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	80 setupBirdDiv(data);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	81 data.$birdDiv.show();
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	82 }
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	83 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	84
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	85 var handleUpdate = function (evt) {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	86 console.debug("birdseye: handleUpdate");
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	87 data = this;
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	88 if (data.settings.isBirdDivVisible) {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	89 renderBirdArea(data);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	90 setupBirdDrag(data);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	91 }
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	92 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	93
789 32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	94 var handleRedisplay = function (evt) {
32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	95 console.debug("birdseye: handleRedisplay");
32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	96 data = this;
32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	97 if (data.settings.isBirdDivVisible) {
32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	98 updateBirdDiv(data);
32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	99 }
32d1d6601968 added redisplay handler to birdseye. updated plugin docu. robcast parents: 788 diff changeset	100 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	101
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	102 var handleDragZoom = function (evt, zoomArea) {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	103 //console.debug("birdseye: handleDragZoom za="+zoomArea);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	104 data = this;
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	105 if (data.settings.isBirdDivVisible) {
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	106 setBirdZoom(data, zoomArea);
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	107 }
040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	108 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	109
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	110 // returns URL for bird's eye view image
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	111 var getBirdImgUrl = function (data) {
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	112 var settings = data.settings;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	113 var birdDivOptions = {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	114 dw : settings.birdDivWidth,
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	115 dh : settings.birdDivHeight
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	116 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	117 var birdSettings = $.extend({}, settings, birdDivOptions);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	118 // use only the relevant parameters
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	119 var params = digilib.fn.getParamString(birdSettings, settings.birdDivParams, digilib.defaults);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	120 var url = settings.scalerBaseUrl + '?' + params;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	121 return url;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	122 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	123
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	124 // creates HTML structure for the bird's eye view in elem
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	125 var setupBirdDiv = function (data) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	126 var $elem = data.$elem;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	127 // the bird's eye div
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	128 var $birdDiv = $('<div class="birdview" style="display:none"/>');
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	129 // the detail indicator frame
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	130 var $birdZoom = $('<div class="birdzoom" style="display:none; background-color:transparent;"/>');
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	131 // the small image
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	132 var $birdImg = $('<img class="birdimg"/>');
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	133 data.$birdDiv = $birdDiv;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	134 data.$birdZoom = $birdZoom;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	135 data.$birdImg = $birdImg;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	136 $elem.append($birdDiv);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	137 $birdDiv.append($birdZoom);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	138 $birdDiv.append($birdImg);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	139 // $birdZoom.css(data.settings.birdIndicatorStyle);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	140 var birdUrl = getBirdImgUrl(data);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	141 $birdImg.load(birdImgLoadedHandler(data));
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	142 $birdImg.error(function () {console.error("error loading birdview image");});
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	143 $birdImg.attr('src', birdUrl);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	144 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	145
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	146 // update bird's eye view
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	147 var updateBirdDiv = function (data) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	148 if (!data.settings.isBirdDivVisible) return;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	149 var $birdImg = data.$birdImg;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	150 var oldsrc = $birdImg.attr('src');
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	151 var newsrc = getBirdImgUrl(data);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	152 if (oldsrc !== newsrc) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	153 $birdImg.attr('src', newsrc);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	154 // onload handler re-renders
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	155 } else {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	156 // re-render
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	157 renderBirdArea(data);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	158 // enable click and drag
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	159 setupBirdDrag(data);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	160 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	161 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	162
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	163 // returns function for load event of bird's eye view img
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	164 var birdImgLoadedHandler = function (data) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	165 return function () {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	166 var $birdImg = $(this);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	167 var birdRect = geom.rectangle($birdImg);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	168 console.debug("birdImg loaded!", $birdImg, "rect=", birdRect, "data=", data);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	169 if (birdRect.width === 0) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	170 // malheureusement IE7 calls load handler when there is no size info yet
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	171 setTimeout(function () { $birdImg.triggerHandler('load'); }, 200);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	172 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	173 // update display (zoom area indicator)
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	174 digilib.fn.updateDisplay(data);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	175 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	176 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	177
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	178 // show zoom area indicator on bird's eye view
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	179 var renderBirdArea = function (data) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	180 if (data.$birdImg == null \|\| ! data.$birdImg.get(0).complete) return;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	181 var $birdZoom = data.$birdZoom;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	182 var zoomArea = data.zoomArea;
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	183 var normalSize = digilib.fn.isFullArea(zoomArea);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	184 if (normalSize) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	185 $birdZoom.hide();
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	186 return;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	187 } else {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	188 $birdZoom.show();
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	189 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	190 // create Transform from current area and picsize
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	191 data.birdTrafo = digilib.fn.getImgTrafo(data.$birdImg, FULL_AREA);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	192 var zoomRect = data.birdTrafo.transform(zoomArea);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	193 console.debug("renderBirdArea:", zoomRect, "zoomArea:", zoomArea, "$birdTrafo:", data.birdTrafo);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	194 // acount for border width
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	195 var bw = digilib.fn.getBorderWidth($birdZoom);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	196 zoomRect.addPosition({x : -bw, y : -bw});
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	197 if (data.settings.interactionMode === 'fullscreen') {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	198 // no animation for fullscreen
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	199 zoomRect.adjustDiv($birdZoom);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	200 } else {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	201 // nice animation for embedded mode :-)
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	202 // correct offsetParent because animate doesn't use offset
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	203 var ppos = $birdZoom.offsetParent().offset();
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	204 var dest = {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	205 left : (zoomRect.x - ppos.left) + 'px',
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	206 top : (zoomRect.y - ppos.top) + 'px',
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	207 width : zoomRect.width,
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	208 height : zoomRect.height
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	209 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	210 $birdZoom.animate(dest);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	211 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	212 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	213
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	214 // bird's eye view zoom area click and drag handler
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	215 var setupBirdDrag = function(data) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	216 var $birdImg = data.$birdImg;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	217 var $birdZoom = data.$birdZoom;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	218 var $document = $(document);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	219 var $scaler = data.$scaler;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	220 var startPos, newRect, birdImgRect, birdZoomRect, fullRect, scalerPos;
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	221 var bw = digilib.fn.getBorderWidth($birdZoom);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	222
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	223 // mousedown handler: start dragging bird zoom to a new position
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	224 var birdZoomStartDrag = function(evt) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	225 startPos = geom.position(evt);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	226 // position may have changed
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	227 data.birdTrafo = digilib.fn.getImgTrafo($birdImg, FULL_AREA);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	228 birdImgRect = geom.rectangle($birdImg);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	229 birdZoomRect = geom.rectangle($birdZoom);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	230 scalerPos = geom.position($scaler);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	231 newRect = null;
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	232 fullRect = digilib.fn.setZoomBG(data); // setup zoom background image
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	233 $document.bind("mousemove.dlBirdMove", birdZoomMove);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	234 $document.bind("mouseup.dlBirdMove", birdZoomEndDrag);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	235 return false;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	236 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	237
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	238 // mousemove handler: drag
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	239 var birdZoomMove = function(evt) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	240 var pos = geom.position(evt);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	241 var delta = startPos.delta(pos);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	242 // move birdZoom div, keeping size
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	243 newRect = birdZoomRect.copy();
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	244 newRect.addPosition(delta);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	245 newRect.stayInside(birdImgRect);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	246 // reflect birdview zoom position in scaler image
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	247 var area = data.birdTrafo.invtransform(newRect);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	248 var imgArea = data.imgTrafo.transform(area);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	249 var offset = imgArea.getPosition().neg();
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	250 offset.add(scalerPos);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	251 if (fullRect) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	252 var bgPos = fullRect.getPosition().add(offset);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	253 } else {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	254 var bgPos = offset;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	255 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	256 // move the background image to the new position
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	257 data.$scaler.css({
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	258 'background-position' : bgPos.x + "px " + bgPos.y + "px"
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	259 });
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	260 // acount for border width
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	261 newRect.addPosition({x : -bw, y : -bw});
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	262 newRect.adjustDiv($birdZoom);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	263 return false;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	264 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	265
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	266 // mouseup handler: reload page
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	267 var birdZoomEndDrag = function(evt) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	268 var settings = data.settings;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	269 $document.unbind("mousemove.dlBirdMove", birdZoomMove);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	270 $document.unbind("mouseup.dlBirdMove", birdZoomEndDrag);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	271 if (newRect == null) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	272 // no movement happened - set center to click position
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	273 startPos = birdZoomRect.getCenter();
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	274 birdZoomMove(evt);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	275 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	276 // ugly, but needed to prevent double border width compensation
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	277 newRect.addPosition({x : bw, y : bw});
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	278 var newArea = data.birdTrafo.invtransform(newRect);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	279 data.zoomArea = newArea;
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	280 digilib.fn.redisplay(data);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	281 return false;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	282 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	283
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	284 // clear old handler
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	285 $document.unbind(".dlBirdMove");
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	286 $birdImg.unbind(".dlBirdMove");
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	287 $birdZoom.unbind(".dlBirdMove");
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	288 if (! digilib.fn.isFullArea(data.zoomArea)) {
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	289 // set new handler
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	290 $birdImg.bind("mousedown.dlBirdMove", birdZoomStartDrag);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	291 $birdZoom.bind("mousedown.dlBirdMove", birdZoomStartDrag);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	292 }
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	293 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	294
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	295 // move bird zoom indicator to reflect zoomed detail area
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	296 var setBirdZoom = function(data, rect) {
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	297 var part = data.imgTrafo.invtransform(rect);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	298 // area = FULL_AREA.fit(part); // no, we want to see where we transcend the borders
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	299 birdTrafo = digilib.fn.getImgTrafo(data.$birdImg, FULL_AREA);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	300 var birdRect = birdTrafo.transform(part);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	301 var $birdZoom = data.$birdZoom;
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	302 // acount for border width
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	303 var bw = digilib.fn.getBorderWidth($birdZoom);
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	304 birdRect.addPosition({x : -bw, y : -bw});
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	305 birdRect.adjustDiv(data.$birdZoom);
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	306 };
912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	307
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	308 // plugin object with name and init
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	309 // shared objects filled by digilib on registration
801 2fb1f576375d stub for new plugins; overlay div for regions plugin hertzhaft parents: 792 diff changeset	310 var plugin = {
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	311 name : 'birdseye',
786 912519475259 documentation for new plugin api in jquery-digilib-plugin.txt. robcast parents: 784 diff changeset	312 install : install,
788 040e9bc1602e birds eye view now as a plugin. robcast parents: 786 diff changeset	313 init : init,
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	314 buttons : {},
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	315 actions : {},
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	316 fn : {},
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	317 plugins : {}
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	318 };
792 52c5595af03e started to adapt regions plugin to new plugin mechanism hertzhaft parents: 789 diff changeset	319
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	320 if ($.fn.digilib == null) {
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	321 $.error("jquery.digilib.birdview must be loaded after jquery.digilib!");
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	322 } else {
801 2fb1f576375d stub for new plugins; overlay div for regions plugin hertzhaft parents: 792 diff changeset	323 $.fn.digilib('plugin', plugin);
784 966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	324 }
966d5c938b4c first step to birdseye view as a plugin. robcast parents: diff changeset	325 })(jQuery);