Can't get ajax - loaded image's height and width via jquery
I'm loading an image exteranlly via ajax like so...
function load_image(image_href) {
var img = new Image();
$(img).load(function () {
$(this).hide(); $('#a_box').append(this);
$(this).fadeIn();
}, gallery_image_load_complete()
).error(function () {
}).attr('src', image_href);
}
function gallery_image_load_complete() {
conslole.log('complete')
$('#a_box img').height(); //wrong numbers, as though the image is partially loaded
$('#a_box img').width(); //wrong numbers
}
The problem is I'm trying to get the loaded image's height and width inside the function gallery_image_load_compl开发者_开发问答ete(). For some reason, this image height and width are off, it's astohugh the image hasn't fully loaded.
Can someone help me out please?
gallery_image_load_complete() needs to be called within the load event handler:
function load_image(image_href) {
var img = new Image();
$(img).load(function () {
$(this).hide(); $('#a_box').append(this);
$(this).fadeIn();
gallery_image_load_complete(); // now inside the load event handler
}).error(function () {
}).attr('src', image_href);
}
You do know that the height and width attributes tell you the size of the image object in the DOM, not the underlying image files themselves, right?
I don't have the code handy right now, but when I needed the size of an arbitrary image in order to decide how to present it, I preload in a hidden element and get the size of the element @ loaded. then do what you will and place the image where it is needed.
works well.
精彩评论