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Issue #49, add scrollstop event support and use it to optimize document page image loading

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This commit is contained in:
Roberto Rosario
2014-10-01 04:56:42 -04:00
parent f1cbc44db9
commit 470eb299b6
2 changed files with 75 additions and 2 deletions
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72
mayan/apps/main/static/packages/jquery.scrollstop.js Normal file
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@@ -0,0 +1,72 @@
/* http://james.padolsey.com/javascript/special-scroll-events-for-jquery/ */
(function(){
var special = jQuery.event.special,
uid1 = "D" + (+new Date()),
uid2 = "D" + (+new Date() + 1);
special.scrollstart = {
setup: function() {
var timer,
handler = function(evt) {
var _self = this,
_args = arguments;
if (timer) {
clearTimeout(timer);
} else {
evt.type = "scrollstart";
jQuery.event.dispatch.apply(_self, _args);
}
timer = setTimeout( function(){
timer = null;
}, special.scrollstop.latency);
};
jQuery(this).bind("scroll", handler).data(uid1, handler);
},
teardown: function(){
jQuery(this).unbind( "scroll", jQuery(this).data(uid1) );
}
};
special.scrollstop = {
latency: 300,
setup: function() {
var timer,
handler = function(evt) {
var _self = this,
_args = arguments;
if (timer) {
clearTimeout(timer);
}
timer = setTimeout( function(){
timer = null;
evt.type = "scrollstop";
jQuery.event.dispatch.apply(_self, _args);
}, special.scrollstop.latency);
};
jQuery(this).bind("scroll", handler).data(uid2, handler);
},
teardown: function() {
jQuery(this).unbind( "scroll", jQuery(this).data(uid2) );
}
};
})();

5
mayan/apps/main/templates/base.html
View File

@@ -116,6 +116,7 @@
{% block web_theme_javascript %}
<script type="text/javascript" src="{% static 'packages/jquery.scrollview.js' %}"></script>
<script type="text/javascript" src="{% static 'packages/jquery_lazyload-master/jquery.lazyload.min.js' %}"></script>
<script type="text/javascript" src="{% static 'packages/jquery.scrollstop.js' %}"></script>
<script type="text/javascript" src="{% static 'packages/fancyapps-fancyBox-18d1712/source/jquery.fancybox.pack.js' %}"></script>
<script type="text/javascript" src="{% static 'packages/fancyapps-fancyBox-18d1712/lib/jquery.mousewheel-3.0.6.pack.js' %}"></script>
@@ -242,10 +243,10 @@
$('img.lazy-load-carousel').lazyload({
container: $(".carousel-container"),
appear: function(elements_left, settings) {
load_document_image($(this));
}
},
event: 'scrollstop'
});
$('img.lazy-load-interactive').lazyload({