aboutsummaryrefslogtreecommitdiffstats
path: root/view/js/mod_hq.js
blob: 8bbd5e3adeecdf9ae8165887eac04fe1706d46e0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
function hqLiveUpdate(notify_id) {

	if(typeof profile_uid === 'undefined') profile_uid = false; /* Should probably be unified with channelId defined in head.tpl */
	if((src === null) || (stopped) || (! profile_uid)) { $('.like-rotator').hide(); return; }
	if(($('.comment-edit-text.expanded').length) || (in_progress)) {
		if(livetime) {
			clearTimeout(livetime);
		}
		livetime = setTimeout(liveUpdate, 10000);
		return;
	}
	if(livetime !== null)
		livetime = null;

	prev = 'live-' + src;

	in_progress = true;

	var update_url;
	var update_mode;

	if(scroll_next) {
		bParam_page = next_page;
		page_load = true;
	}
	else {
		bParam_page = 1;
	}

	update_url = buildCmd();

	if(page_load) {
		$("#page-spinner").show();
		if(bParam_page == 1)
			update_mode = 'replace';
		else
			update_mode = 'append';
	}
	else {
		update_mode = 'update';
		var orgHeight = $("#region_2").height();
	}

	var dstart = new Date();
	console.log('LOADING data...');
	$.get(update_url, function(data) {

		// on shared hosts occasionally the live update process will be killed
		// leaving an incomplete HTML structure, which leads to conversations getting
		// truncated and the page messed up if all the divs aren't closed. We will try 
		// again and give up if we can't get a valid HTML response after 10 tries.

		if((data.indexOf("<html>") != (-1)) && (data.indexOf("</html>") == (-1))) {
			console.log('Incomplete data. Reloading');
			in_progress = false;
			liveRecurse ++;
			if(liveRecurse < 10) {
				liveUpdate();
			}
			else {
				console.log('Incomplete data. Too many attempts. Giving up.');
			}
		}		

		// else data was valid - reset the recursion counter
		liveRecurse = 0;

		if(notify_id !== 'undefined') {
			$.post(
				"hq",
				{
					"notify_id" : notify_id
				},
				function(data) {
					if(timer) clearTimeout(timer);
					timer = setTimeout(NavUpdate,10);
				}
			);
		}

		var dready = new Date();
		console.log('DATA ready in: ' + (dready - dstart)/1000 + ' seconds.');

		if(update_mode === 'update' || preloadImages) {
			console.log('LOADING images...');

			$('.wall-item-body, .wall-photo-item',data).imagesLoaded( function() {
				var iready = new Date();
				console.log('IMAGES ready in: ' + (iready - dready)/1000 + ' seconds.');

				page_load = false;
				scroll_next = false;
				updateConvItems(update_mode,data);
				$("#page-spinner").hide();
				$("#profile-jot-text-loading").hide();

				// adjust scroll position if new content was added above viewport
				if(update_mode === 'update') {
					$(window).scrollTop($(window).scrollTop() + $("#region_2").height() - orgHeight + contentHeightDiff);
				}

				in_progress = false;

				// FIXME - the following lines were added so that almost
				// immediately after we update the posts on the page, we
				// re-check and update the notification counts.
				// As it turns out this causes a bit of an inefficiency
				// as we're pinging twice for every update, once before
				// and once after. A btter way to do this is to rewrite
				// NavUpdate and perhaps LiveUpdate so that we check for 
				// post updates first and only call the notification ping 
				// once. 

				updateCountsOnly = true;
				if(timer) clearTimeout(timer);
				timer = setTimeout(NavUpdate,10);

			});
		}
		else {
			page_load = false;
			scroll_next = false;
			updateConvItems(update_mode,data);
			$("#page-spinner").hide();
			$("#profile-jot-text-loading").hide();

			in_progress = false;

			// FIXME - the following lines were added so that almost
			// immediately after we update the posts on the page, we
			// re-check and update the notification counts.
			// As it turns out this causes a bit of an inefficiency
			// as we're pinging twice for every update, once before
			// and once after. A btter way to do this is to rewrite
			// NavUpdate and perhaps LiveUpdate so that we check for 
			// post updates first and only call the notification ping 
			// once. 

			updateCountsOnly = true;
			if(timer) clearTimeout(timer);
			timer = setTimeout(NavUpdate,10);

		}
	});
}