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Feature multiple images (Issue #56) #57

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Feature multiple images (Issue #56) #57

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60eb79a
Add get_image function that returns the first visible image for the i…
rubenvarela Jun 23, 2017
d510675
Remove original definition of image
rubenvarela Jun 23, 2017
47e6189
Define var image on resizeMap() and on start()
rubenvarela Jun 23, 2017
d821fb7
Get current visible image. Wait for it to load and execute resizeMap …
rubenvarela Jun 23, 2017
4cd43a8
Merge branch 'master' into feature-multiple-images
davidjbradshaw May 31, 2018
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15 changes: 15 additions & 0 deletions js/imageMapResizer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,19 @@

function scaleImageMap(){

function get_image() {
var imageList = document.querySelectorAll('img[usemap="#'+map.name+'"]');
var count = imageList.length;
for (var i = 0; i < count; i++){
var cImage = imageList[i].offsetParent;
if (typeof cImage != undefined && cImage) {
return imageList[i];
}
}
}

function resizeMap() {
var image = get_image();
function resizeAreaTag(cachedAreaCoords,idx){
function scale(coord){
var dimension = ( 1 === (isWidth = 1-isWidth) ? 'width' : 'height' );
Expand Down Expand Up @@ -44,13 +56,16 @@
}

function start(){
var image = get_image();
if ((image.width !== image.naturalWidth) || (image.height !== image.naturalHeight)) {
resizeMap();
}
}

function addEventListeners(){
var image = get_image(); //get current visible image
image.addEventListener('load', resizeMap, false); //Detect late image loads in IE11

window.addEventListener('focus', resizeMap, false); //Cope with window being resized whilst on another tab
window.addEventListener('resize', debounce, false);
window.addEventListener('readystatechange', resizeMap, false);
Expand Down