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Use the new MessageList for storing messages

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(imported from commit 38a04d2ff504aa49189997b972318af7c944d528)
This commit is contained in:
Zev Benjamin
2013-02-12 14:01:24 -05:00
parent 814e3d6385
commit 97160d79d4
6 changed files with 95 additions and 100 deletions
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130
zephyr/static/js/zephyr.js
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@@ -1,6 +1,6 @@
var message_array = [];
var message_dict = {};
var message_in_table = {zhome: {}, zfilt: {}};
var all_msg_list = new MessageList('zhome');
var narrowed_msg_list;
var current_msg_list = all_msg_list;
var subject_dict = {};
var people_dict = {};
@@ -127,7 +127,7 @@ function get_private_message_recipient(message, attr) {
function respond_to_message(reply_type) {
var message, msg_type;
message = message_dict[selected_message_id];
message = current_msg_list.get(selected_message_id);
var stream = '';
var subject = '';
@@ -180,14 +180,14 @@ $(function () {
keepTracking: true});
});
function message_range(start, end) {
// Returns messages from the global message_dict in the specified range, inclusive
function message_range(msg_list, start, end) {
// Returns messages from the given message list in the specified range, inclusive
var result = [];
var i;
for (i = start; i <= end; i++) {
if (message_dict[i] !== undefined) {
result.push(message_dict[i]);
if (msg_list.get(i) !== undefined) {
result.push(msg_list.get(i));
}
}
@@ -253,10 +253,10 @@ function update_selected_message(message, opts) {
message.addClass(cls);
var new_selected_id = rows.id(message);
process_unread_counts(message_range(all_msg_list, furthest_read + 1, new_selected_id), true);
// Narrowing is a temporary view on top of the home view and
// doesn't affect your pointer in the home view.
// Similarly, lurk mode does not affect your pointer.
process_unread_counts(message_range(furthest_read + 1, new_selected_id), true);
if (! narrow.active() && lurk_stream === undefined) {
persistent_message_id = new_selected_id;
if (new_selected_id > furthest_read)
@@ -332,7 +332,6 @@ function clear_table(table_name) {
// mindful of memory leaks.
rows.get_table(table_name).children().detach();
message_groups[table_name] = [];
message_in_table[table_name] = {};
}
function add_display_time(message, prev) {
@@ -364,10 +363,11 @@ function add_display_time(message, prev) {
' (UTC' + ((tz_offset < 0) ? '' : '+') + tz_offset + ')';
}
function add_to_table(messages, table_name, filter_function, where, allow_collapse) {
function add_to_table(messages, msg_list, filter_function, where, allow_collapse) {
if (messages.length === 0)
return;
var table_name = msg_list.table_name;
var table = rows.get_table(table_name);
var messages_to_render = [];
var ids_where_next_is_same_sender = {};
@@ -389,7 +389,7 @@ function add_to_table(messages, table_name, filter_function, where, allow_collap
var top_messages = [];
$.each(top_group, function (index, id) {
rows.get(id, table_name).remove();
top_messages.push(message_dict[id]);
top_messages.push(msg_list.get(id));
});
messages = messages.concat(top_messages);
@@ -397,15 +397,13 @@ function add_to_table(messages, table_name, filter_function, where, allow_collap
table.find('.recipient_row:first').remove();
} else {
last_message_id = rows.id(table.find('tr[zid]:last'));
prev = message_dict[last_message_id];
prev = msg_list.get(last_message_id);
}
$.each(messages, function (index, message) {
if (! filter_function(message))
return;
message_in_table[table_name][message.id] = true;
message.include_recipient = false;
message.include_bookend = false;
if (same_recipient(prev, message) && allow_collapse) {
@@ -517,8 +515,8 @@ function case_insensitive_find(term, array) {
}
function add_message_metadata(message, dummy) {
if (message_dict[message.id]) {
return message_dict[message.id];
if (all_msg_list.get(message.id)) {
return all_msg_list.get(message.id);
}
get_updates_params.last = Math.max(get_updates_params.last || 0, message.id);
@@ -567,65 +565,68 @@ function add_message_metadata(message, dummy) {
}
});
message_dict[message.id] = message;
return message;
}
function add_messages_helper(messages, table, center_message_id,
function add_messages_helper(messages, msg_list, center_message_id,
predicate, allow_collapse, append_new_messages) {
// center_message_id is guaranteed to be between the top and bottom
var top_messages = $.grep(messages, function (elem, idx) {
return (elem.id < center_message_id && ! message_in_table[table][elem.id]);
return (elem.id < center_message_id && msg_list.get(elem.id) === undefined);
});
var bottom_messages = $.grep(messages, function (elem, idx) {
return (elem.id >= center_message_id && ! message_in_table[table][elem.id]);
return (elem.id >= center_message_id && msg_list.get(elem.id) === undefined);
});
if (table === "zhome" && append_new_messages) {
message_array = top_messages.concat(message_array).concat(bottom_messages);
if (append_new_messages) {
msg_list.prepend(top_messages);
msg_list.append(bottom_messages);
}
add_to_table(top_messages, table, predicate, "top", allow_collapse);
add_to_table(bottom_messages, table, predicate, "bottom", allow_collapse);
add_to_table(top_messages, msg_list, predicate, "top", allow_collapse);
add_to_table(bottom_messages, msg_list, predicate, "bottom", allow_collapse);
return top_messages.length > 0;
}
function add_messages(messages, opts) {
function add_messages(messages, msg_list, opts) {
var prepended = false;
if (!messages)
return;
opts = $.extend({}, {update_unread_counts: true}, opts);
opts = $.extend({}, {update_unread_counts: true, append_new_messages: true}, opts);
util.destroy_loading_indicator($('#page_loading_indicator'));
util.destroy_first_run_message();
messages = $.map(messages, add_message_metadata);
if (opts.add_to_home) {
if (add_messages_helper(messages, "zhome", persistent_message_id,
narrow.in_home, true, opts.append_new_messages)
&& !narrow.active()) {
prepended = true;
}
if (opts.update_unread_counts) {
process_unread_counts(messages, false);
}
var predicate, allow_collapse, center_message_id;
if (msg_list === all_msg_list) {
predicate = narrow.in_home;
allow_collapse = true;
center_message_id = persistent_message_id;
} else {
predicate = narrow.predicate();
allow_collapse = narrow.allow_collapse();
center_message_id = selected_message_id;
}
if (narrow.active()) {
if (add_messages_helper(messages, "zfilt", selected_message_id,
narrow.predicate(), narrow.allow_collapse(), opts.append_new_messages)) {
prepended = true;
}
if (add_messages_helper(messages, msg_list, center_message_id,
predicate, allow_collapse, opts.append_new_messages)) {
prepended = true;
}
if (msg_list === all_msg_list && opts.update_unread_counts) {
process_unread_counts(messages, false);
}
// If we received the initially selected message, select it on the client side,
// but not if the user has already selected another one during load.
if ((selected_message_id === -1) && (message_dict.hasOwnProperty(initial_pointer))) {
if ((selected_message_id === -1) && (msg_list.get(initial_pointer) !== undefined)) {
select_message_by_id(initial_pointer, {then_scroll: true});
}
if ((selected_message_id === -1) && ! have_initial_messages) {
select_message_by_id(message_array[0].id, {then_scroll: false});
select_message_by_id(msg_list.first().id, {then_scroll: false});
}
// If we prepended messages, then we need to scroll back to the pointer.
@@ -691,7 +692,10 @@ function get_updates(options) {
}
if (data.messages.length !== 0) {
add_messages(data.messages, {add_to_home: true, append_new_messages: true});
add_messages(data.messages, all_msg_list);
if (narrowed_msg_list !== undefined) {
add_messages(data.messages, narrowed_msg_list);
}
notifications.received_messages(data.messages);
}
@@ -739,7 +743,7 @@ function get_updates(options) {
});
}
function load_old_messages(anchor, num_before, num_after, cont, for_narrow,
function load_old_messages(anchor, num_before, num_after, msg_list, cont, for_narrow,
cont_will_add_messages) {
if (for_narrow === undefined) {
for_narrow = false;
@@ -760,7 +764,7 @@ function load_old_messages(anchor, num_before, num_after, cont, for_narrow,
$('#connection-error').hide();
if (messages.length !== 0 && !cont_will_add_messages) {
add_messages(messages, {add_to_home: !for_narrow, append_new_messages: true});
add_messages(messages, msg_list);
}
if (cont !== undefined) {
@@ -778,8 +782,8 @@ function load_old_messages(anchor, num_before, num_after, cont, for_narrow,
// The server occationally returns no data during a
// restart. Ignore those responses and try again
setTimeout(function () {
load_old_messages(anchor, num_before, num_after, cont, for_narrow,
cont_will_add_messages);
load_old_messages(anchor, num_before, num_after, msg_list,
cont, for_narrow, cont_will_add_messages);
}, 0);
return;
}
@@ -800,8 +804,8 @@ function load_old_messages(anchor, num_before, num_after, cont, for_narrow,
// We might want to be more clever here
$('#connection-error').show();
setTimeout(function () {
load_old_messages(anchor, num_before, num_after, cont, for_narrow,
cont_will_add_messages);
load_old_messages(anchor, num_before, num_after, msg_list,
cont, for_narrow, cont_will_add_messages);
}, 5000);
}
});
@@ -813,7 +817,7 @@ $(function () {
// catch the user up
if (messages.length !== 1) {
var latest_id = messages[messages.length-1].id;
load_old_messages(latest_id, 0, 400, load_more);
load_old_messages(latest_id, 0, 400, all_msg_list, load_more);
return;
}
// now start subscribing to updates
@@ -821,7 +825,7 @@ $(function () {
}
if (have_initial_messages) {
load_old_messages(initial_pointer, 200, 200, load_more);
load_old_messages(initial_pointer, 200, 200, all_msg_list, load_more);
} else {
get_updates();
}
@@ -842,26 +846,20 @@ function reset_load_more_status() {
have_scrolled_away_from_top = true;
}
function load_more_messages() {
function load_more_messages(msg_list) {
var batch_size = 400;
var table, oldest_message_id;
var oldest_message_id;
if (!load_more_enabled) {
return;
}
ui.show_loading_more_messages_indicator();
load_more_enabled = false;
table = narrow.active() ? "zfilt" : "zhome";
oldest_message_id = rows.id(rows.get_table(table).find("tr[zid]:first"));
if (isNaN(oldest_message_id)) {
if (selected_message_id === -1) {
// If we arrived on the page via a #narrow URL, selected_message_id
// will still be -1, so use the initial_pointer as our anchor
oldest_message_id = initial_pointer;
} else {
oldest_message_id = selected_message_id;
}
if (msg_list.first() === undefined) {
oldest_message_id = initial_pointer;
} else {
oldest_message_id = msg_list.first().id;
}
load_old_messages(oldest_message_id, batch_size, 0,
load_old_messages(oldest_message_id, batch_size, 0, msg_list,
function (messages) {
ui.hide_loading_more_messages_indicator();
if (messages.length === batch_size + 1) {