/
notify-osd.js
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/
notify-osd.js
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(function ($) {
var notif_obj;
var defaults = {
text : '',
icon : '',
timeout : 5,
sticky : false,
dismissable : false,
click_through : true,
buffer : 40,
opacity_max : 0.85,
opacity_min : 0.20
};
$.notify_osd = {
defaults : defaults,
create : function (options) {
var opts = $.extend({}, defaults, options);
var mouse, notification, buffer;
var Point = function (x,y) {
return {
x : x,
y : y,
lies_inside : function (region) {
return ((this.y > region.top) && (this.y < region.bottom) && (this.x > region.left) && (this.x < region.right));
},
min_distance_in : function (region) {
var rel_position = {
top : Math.abs(this.y - region.top),
right : Math.abs(this.x - region.right),
bottom : Math.abs(this.y - region.bottom),
left : Math.abs(this.x - region.left)
};
var min = rel_position.left;
if(rel_position.top < min) min = rel_position.top;
if(rel_position.right < min) min = rel_position.right;
if(rel_position.bottom < min) min = rel_position.bottom;
return min;
},
to_string : function () { return "x: "+this.x+" y: "+this.y; }
};
};
var Region = function (data) {
return {
top : data.top,
left : data.left,
width : data.width,
height : data.height,
bottom : data.top + data.height,
right : data.left + data.width,
to_string : function () { return "t: "+this.top+" l: "+this.left+" h: "+this.height+" w: "+this.width; }
};
};
if($('.notify-osd').length == 0) {
notif_obj = $('<div class="notify-osd"><div><table><tr><td class="notify-osd-content">'+opts.text+'</td></tr></table></div></div>').css({
'opacity' : opts.opacity_max
}).hide().appendTo('body');
} else {
notif_obj = $('.notify-osd');
}
notif_obj.extend({
opts : opts,
set_text : function (text) {
$(this).find('.notify-osd-content').html(text);
return this;
},
set_icon : function (src) {
if (src != '') {
$(this).find('tr').prepend_or_replace('<td class="notify-osd-icon"><img src="'+src+'" /></td>','.notify-osd-icon');
} else {
$(this).find('.notify-osd-icon').remove();
}
return this;
},
set_dismissable : function (dismissable) {
if (opts.dismissable) {
$(this).children('div').append_or_replace('<a href="#" class="notify-osd-dismiss" title="Dismiss">x</a>','.notify-osd-dismiss');
$('.notify-osd-dismiss').unbind('click').click(function () {
notif_obj.dismiss();
});
} else {
$(this).find('.notify-osd-dismiss').remove();
}
return this;
},
set_click_through : function (click_through) {
$('.clone').remove();
if (click_through) {
$('a,input').not('.notify-osd-dismiss').each(function () {
var link = {
top_left : new Point( $(this).offset().left , $(this).offset().top ),
top_right : new Point( $(this).offset().left + $(this).width(), $(this).offset().top ),
bottom_right : new Point( $(this).offset().left + $(this).width(), $(this).offset().top + $(this).height() ),
bottom_left : new Point( $(this).offset().left , $(this).offset().top + $(this).height() )
};
if (link.top_left.lies_inside(notification) || link.top_right.lies_inside(notification) || link.bottom_right.lies_inside(notification) || link.bottom_left.lies_inside(notification)) {
$(this).clone(true,true).addClass('clone').appendTo('body').css({
'position' : 'absolute',
'top' : $(this).offset().top,
'left' : $(this).offset().left,
'height' : $(this).height(),
'width' : $(this).width(),
'opacity' : '0',
'z-index' :'950'
});
}
});
}
},
show : function () {
this.set_text(opts.text).set_icon(opts.icon).set_dismissable(opts.dismissable);
$(this).fadeIn('fast', function () {
notification = new Region({
top : notif_obj.offset().top,
left : notif_obj.offset().left,
width : notif_obj.width(),
height : notif_obj.height()
});
buffer = new Region({
top : notification.top - opts.buffer,
left : notification.left - opts.buffer,
width : notification.width + 2 * opts.buffer,
height : notification.height + 2 * opts.buffer
});
clearTimeout(this.timeout);
this.timeout = (!opts.sticky && opts.timeout) ? setTimeout(function () { notif_obj.dismiss(); },opts.timeout*1000) : null;
mouse = new Point(0, 0);
notif_obj.set_click_through(opts.click_through);
$(document).mousemove(mousemove);
});
return this;
},
dismiss : function () {
$(document).unbind('mousemove');
$(this).fadeOut('fast', function () {
$(this).remove();
$('.clone').remove();
});
}
});
var mousemove = function (e) {
mouse.x = e.pageX - $('body').scrollLeft();
mouse.y = e.pageY - $('body').scrollTop();
var opacity;
if (mouse.lies_inside(buffer)) {
// find the minimum distance of the mouse from the edges of the buffer region
min_distance = mouse.min_distance_in(buffer);
if (mouse.lies_inside(notification)) {
opacity = opts.opacity_min;
} else {
opacity = opts.opacity_max - (opts.opacity_max-opts.opacity_min) * (min_distance/opts.buffer);
}
} else {
opacity = opts.opacity_max;
}
notif_obj.css('opacity', opacity);
}
$(document).unbind('mousemove');
if (notif_obj.css('display') != 'none') {
notif_obj.fadeOut('fast', function () {
notif_obj.show();
});
} else {
notif_obj.show();
}
return notif_obj;
},
setup : function (options) {
defaults = $.extend({}, defaults, options);
},
dismiss : function () {
notif_obj.dismiss();
}
};
$.fn.extend({
prepend_or_replace : function (html,selector) {
if($(this).children(selector).length > 0) {
$(this).children(selector).remove();
}
return $(this).prepend(html);
},
append_or_replace : function (html,selector) {
if ($(this).children(selector).length > 0) {
$(this).children(selector).remove();
}
return $(this).append(html);
}
});
})(jQuery);