digilib: client/digitallibrary/jquery/jquery.digilib.js comparison

comparison client/digitallibrary/jquery/jquery.digilib.js @ 748:fb4ffac2950d jquery

ugly workaround for IE7 image load handler bug

author	hertzhaft
date	Sun, 06 Feb 2011 18:25:41 +0100
parents	5d3da97089bc
children	8452a485e0e7

comparison

equal deleted inserted replaced

-:5d3da97089bc
+:fb4ffac2950d
 data.$birdDiv.show();
 }
 // about window creation - TODO: could be deferred? restrict to only one item?
 setupAboutDiv(data);
 // drag zoom area around in scaler div
-setupZoomDrag(data);
+// setupZoomDrag(data); // is done in scalerImgLoadedHandler()
 });
 },
 // destroy: clean up digilib
 destroy : function(data) {
 };
 // returns function for load event of bird's eye view img
 var birdImgLoadedHandler = function (data) {
 return function () {
-var $img = $(this);
+var $birdImg = $(this);
-console.debug("birdimg loaded! this=", this, " data=", data);
+var birdRect = geom.rectangle($birdImg);
-// create Transform from current area and picsize
+console.debug("birdImg loaded!", $birdImg, "rect=", birdRect, "data=", data);
-data.birdTrafo = getImgTrafo($img, FULL_AREA);
+if (birdRect.width === 0) {
+// malheureusement IE7 calls load handler when there is no size info yet
+setTimeout(function () { $birdImg.triggerHandler('load') }, 200);
+}
 // display red indicator around zoomarea
 renderBirdArea(data);
 // enable click and drag
 setupBirdDrag(data);
 };
 $birdZoom.hide();
 return;
 } else {
 $birdZoom.show();
 }
-// position may have changed
+// create Transform from current area and picsize
 data.birdTrafo = getImgTrafo(data.$birdImg, FULL_AREA);
 var zoomRect = data.birdTrafo.transform(zoomArea);
+console.debug("renderBirdArea:", zoomRect, "zoomArea:", zoomArea, "$birdTrafo:", data.birdTrafo);
 // acount for border width
 zoomRect.addPosition({x : -2, y : -2});
 if (data.settings.interactionMode === 'fullscreen') {
 // no animation for fullscreen
 zoomRect.adjustDiv($birdZoom);
 } else {
 // nice animation for embedded mode :-)
 // correct offsetParent because animate doesn't use offset
 var ppos = $birdZoom.offsetParent().offset();
 var dest = {
 left : (zoomRect.x - ppos.left) + 'px',
 top : (zoomRect.y - ppos.top) + 'px',
 width : zoomRect.width,
-height : zoomRect.height};
+height : zoomRect.height
+};
 $birdZoom.animate(dest);
 }
 };
 // zooms by the given factor
 // reflect birdview zoom position in scaler image
 var area = data.birdTrafo.invtransform(newRect);
 var imgArea = data.imgTrafo.transform(area);
 var offset = imgArea.getPosition().neg();
 offset.add(scalerPos);
-console.log('offset', offset);
 if (fullRect) {
 var bgPos = fullRect.getPosition().add(offset);
 } else {
 var bgPos = offset;
 }