web/data/cubicweb.image.js
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 26 Jul 2010 12:06:58 +0200
branchstable
changeset 6010 9d40ee3d0551
parent 6004 d17d3b34bc12
child 6215 759cf097f5aa
permissions -rw-r--r--
[image js] fix image fit screen function


jQuery.fn.autoResize = function() {
    // remove enforced with / height (by CSS and/or HTML attributes)
    this.css("width", "auto").css("height", "auto");
    this.removeAttr("width").removeAttr("height"); // Remove
    // compute image size / max allowed size to fit screen
    var imgHSize = this.width();
    var maxHSize = $(window).width() - ($(document).width() - imgHSize);
    var imgVSize = this.height();
    // we don't mind if content in [content]footer moved out of the screen
    var maxVSize = $(window).height() - ($(document).height() - imgVSize) + $('#footer').height() + $('#contentfooter').height();
    if (maxHSize > 0 && maxVSize > 0) {
	// if image don't fit screen, set width or height so that
	// browser keep img ratio, ensuring the other dimension will
	// also fit the screen
	if (imgHSize > maxHSize && ((imgVSize / imgHSize) * maxHSize) <= maxVSize) {
	    this.css("width", maxHSize);
	} else if (imgVSize > maxVSize && ((imgHSize / imgVSize) * maxVSize) <= maxHSize) {
	    this.css("height", maxVSize);
	}
	else {
	    // image already fit in screen, don't scale it up
	}
    } else {
	// can't fit image in, don't do anything
    }
};


$(document).ready(function() {
	$("img.contentimage").load(function() {$(this).autoResize()});
    });