mirror of https://github.com/zulip/zulip.git
606 lines
20 KiB
JavaScript
606 lines
20 KiB
JavaScript
/*jslint nomen: true */
|
|
function MessageList(table_name, filter, opts) {
|
|
_.extend(this, {
|
|
collapse_messages: true,
|
|
muting_enabled: true,
|
|
summarize_read: false
|
|
}, opts);
|
|
this.view = new MessageListView(this, table_name, this.collapse_messages);
|
|
|
|
if (this.muting_enabled) {
|
|
this._all_items = [];
|
|
}
|
|
this._items = [];
|
|
this._hash = {};
|
|
this.table_name = table_name;
|
|
this.filter = filter;
|
|
this._selected_id = -1;
|
|
|
|
if (this.filter === undefined) {
|
|
this.filter = new Filter();
|
|
}
|
|
|
|
this.narrowed = this.table_name === "zfilt";
|
|
|
|
this.num_appends = 0;
|
|
this.min_id_exempted_from_summaries = -1;
|
|
|
|
return this;
|
|
}
|
|
|
|
(function () {
|
|
|
|
MessageList.prototype = {
|
|
add_messages: function MessageList_add_messages(messages, opts) {
|
|
var self = this;
|
|
var predicate = self.filter.predicate();
|
|
var top_messages = [];
|
|
var bottom_messages = [];
|
|
var interior_messages = [];
|
|
|
|
// If we're initially populating the list, save the messages in
|
|
// bottom_messages regardless
|
|
if (self.selected_id() === -1 && self.empty()) {
|
|
var narrow_messages = _.filter(messages, predicate);
|
|
bottom_messages = _.reject(narrow_messages, function (msg) {
|
|
return self.get(msg.id);
|
|
});
|
|
} else {
|
|
_.each(messages, function (msg) {
|
|
// Filter out duplicates that are already in self, and all messages
|
|
// that fail our filter predicate
|
|
if (! (self.get(msg.id) === undefined && predicate(msg))) {
|
|
return;
|
|
}
|
|
|
|
// Put messages in correct order on either side of the message list
|
|
if (self.empty() || msg.id > self.last().id) {
|
|
bottom_messages.push(msg);
|
|
} else if (msg.id < self.first().id) {
|
|
top_messages.push(msg);
|
|
} else {
|
|
interior_messages.push(msg);
|
|
}
|
|
});
|
|
}
|
|
|
|
if (interior_messages.length > 0) {
|
|
self.add_and_rerender(top_messages.concat(interior_messages).concat(bottom_messages));
|
|
return true;
|
|
}
|
|
if (top_messages.length > 0) {
|
|
self.prepend(top_messages);
|
|
}
|
|
if (bottom_messages.length > 0) {
|
|
self.append(bottom_messages, opts);
|
|
}
|
|
|
|
if ((self === narrowed_msg_list) && !self.empty() &&
|
|
(self.selected_id() === -1) &&
|
|
!opts.delay_render) {
|
|
// If adding some new messages to the message tables caused
|
|
// our current narrow to no longer be empty, hide the empty
|
|
// feed placeholder text.
|
|
narrow.hide_empty_narrow_message();
|
|
// And also select the newly arrived message.
|
|
self.select_id(self.selected_id(), {then_scroll: true, use_closest: true});
|
|
}
|
|
},
|
|
|
|
get: function MessageList_get(id) {
|
|
id = parseFloat(id);
|
|
if (isNaN(id)) {
|
|
return undefined;
|
|
}
|
|
return this._hash[id];
|
|
},
|
|
|
|
num_items: function MessageList_num_items() {
|
|
return this._items.length;
|
|
},
|
|
|
|
empty: function MessageList_empty() {
|
|
return this._items.length === 0;
|
|
},
|
|
|
|
first: function MessageList_first() {
|
|
return this._items[0];
|
|
},
|
|
|
|
last: function MessageList_last() {
|
|
return this._items[this._items.length - 1];
|
|
},
|
|
|
|
nth_most_recent_id: function MessageList_nth_most_recent_id(n) {
|
|
var i = this._items.length - n;
|
|
if (i < 0) {
|
|
return -1;
|
|
} else {
|
|
return this._items[i].id;
|
|
}
|
|
},
|
|
|
|
clear: function MessageList_clear(opts) {
|
|
opts = _.extend({clear_selected_id: true}, opts);
|
|
|
|
if (this.muting_enabled) {
|
|
this._all_items = [];
|
|
}
|
|
|
|
this._items = [];
|
|
this._hash = {};
|
|
this.view.clear_rendering_state(true);
|
|
|
|
if (opts.clear_selected_id) {
|
|
this._selected_id = -1;
|
|
}
|
|
},
|
|
|
|
selected_id: function MessageList_selected_id() {
|
|
return this._selected_id;
|
|
},
|
|
|
|
select_id: function MessageList_select_id(id, opts) {
|
|
opts = _.extend({
|
|
then_scroll: false,
|
|
use_closest: false,
|
|
empty_ok: false,
|
|
mark_read: true,
|
|
force_rerender: false
|
|
}, opts, {
|
|
id: id,
|
|
msg_list: this,
|
|
previously_selected: this._selected_id
|
|
});
|
|
|
|
id = parseFloat(id);
|
|
if (isNaN(id)) {
|
|
blueslip.fatal("Bad message id");
|
|
}
|
|
|
|
var closest_id = this.closest_id(id);
|
|
|
|
// The name "use_closest" option is a bit legacy. We
|
|
// are always gonna move to the closest visible id; the flag
|
|
// just says whether we call blueslip.error or not. The caller
|
|
// sets use_closest to true when it expects us to move the
|
|
// pointer as needed, so only generate an error if the flag is
|
|
// false.
|
|
if (!opts.use_closest && closest_id !== id) {
|
|
blueslip.error("Selected message id not in MessageList",
|
|
{table_name: this.table_name, id: id});
|
|
}
|
|
|
|
if (closest_id === -1 && !opts.empty_ok) {
|
|
var error_data = {
|
|
table_name: this.table_name,
|
|
id: id,
|
|
items_length: this._items.length
|
|
};
|
|
blueslip.fatal("Cannot select id -1", error_data);
|
|
}
|
|
|
|
id = closest_id;
|
|
opts.id = id;
|
|
this._selected_id = id;
|
|
|
|
if (opts.force_rerender) {
|
|
this.rerender();
|
|
} else if (!opts.from_rendering) {
|
|
this.view.maybe_rerender();
|
|
}
|
|
|
|
$(document).trigger($.Event('message_selected.zulip', opts));
|
|
},
|
|
|
|
reselect_selected_id: function MessageList_select_closest_id() {
|
|
this.select_id(this._selected_id, {from_rendering: true});
|
|
},
|
|
|
|
selected_message: function MessageList_selected_message() {
|
|
return this.get(this._selected_id);
|
|
},
|
|
|
|
selected_row: function MessageList_selected_row() {
|
|
return this.get_row(this._selected_id);
|
|
},
|
|
|
|
on_expandable_row: function MessageList_on_expandable_row() {
|
|
return this.view.is_expandable_row(this.selected_row());
|
|
},
|
|
|
|
closest_id: function MessageList_closest_id(id) {
|
|
var items = this._items;
|
|
|
|
if (items.length === 0) {
|
|
return -1;
|
|
}
|
|
|
|
var closest = util.lower_bound(items, id,
|
|
function (a, b) {
|
|
return a.id < b;
|
|
});
|
|
|
|
if (closest === items.length
|
|
|| (closest !== 0
|
|
// We have the index at which a message with the
|
|
// given id would be inserted, but that isn't
|
|
// necessarily the index of the message that has an
|
|
// id that is closest to the query; it could be the
|
|
// previous message in the list.
|
|
&& (id - items[closest - 1].id <
|
|
items[closest].id - id)))
|
|
{
|
|
closest = closest - 1;
|
|
}
|
|
return items[closest].id;
|
|
},
|
|
|
|
advance_past_messages: function MessageList_advance_past_messages(msg_ids) {
|
|
// Start with the current pointer, but then keep advancing the
|
|
// pointer while the next message's id is in msg_ids. See trac #1555
|
|
// for more context, but basically we are skipping over contiguous
|
|
// messages that we have recently visited.
|
|
var next_msg_id = 0;
|
|
|
|
var id_set = {};
|
|
|
|
_.each(msg_ids, function (msg_id) {
|
|
id_set[msg_id] = true;
|
|
});
|
|
|
|
var idx = this.selected_idx() + 1;
|
|
while (idx < this._items.length) {
|
|
var msg_id = this._items[idx].id;
|
|
if (!id_set[msg_id]) {
|
|
break;
|
|
}
|
|
next_msg_id = msg_id;
|
|
++idx;
|
|
}
|
|
|
|
if (next_msg_id > 0) {
|
|
this._selected_id = next_msg_id;
|
|
}
|
|
},
|
|
|
|
_add_to_hash: function MessageList__add_to_hash(messages) {
|
|
var self = this;
|
|
messages.forEach(function (elem) {
|
|
var id = parseFloat(elem.id);
|
|
if (isNaN(id)) {
|
|
blueslip.fatal("Bad message id");
|
|
}
|
|
if (self._hash[id] !== undefined) {
|
|
blueslip.error("Duplicate message added to MessageList");
|
|
return;
|
|
}
|
|
self._hash[id] = elem;
|
|
});
|
|
},
|
|
|
|
is_summarized_message: function (message) {
|
|
if (!feature_flags.summarize_read_while_narrowed ||
|
|
message === undefined || message.flags === undefined) {
|
|
return false;
|
|
}
|
|
if (message.id >= this.min_id_exempted_from_summaries) {
|
|
return false;
|
|
}
|
|
if (this.summarize_read === 'home') {
|
|
return message.flags.indexOf('summarize_in_home') !== -1;
|
|
} else if (this.summarize_read === 'stream' ) {
|
|
return message.flags.indexOf('summarize_in_stream') !== -1;
|
|
} else {
|
|
return false;
|
|
}
|
|
},
|
|
|
|
summary_adjective: function (message) {
|
|
if (_.contains(message.flags, 'force_collapse')) {
|
|
return 'collapsed';
|
|
} else if (!_.contains(message.flags, 'force_expand')) {
|
|
if (this.is_summarized_message(message)) {
|
|
return 'read';
|
|
}
|
|
}
|
|
return null;
|
|
},
|
|
|
|
selected_idx: function MessageList_selected_idx() {
|
|
return util.lower_bound(this._items, this._selected_id,
|
|
function (a, b) { return a.id < b; });
|
|
},
|
|
|
|
// Maintains a trailing bookend element explaining any changes in
|
|
// your subscribed/unsubscribed status at the bottom of the
|
|
// message list.
|
|
update_trailing_bookend: function MessageList_update_trailing_bookend() {
|
|
this.view.clear_trailing_bookend();
|
|
if (!this.narrowed) {
|
|
return;
|
|
}
|
|
var stream = narrow.stream();
|
|
if (stream === undefined) {
|
|
return;
|
|
}
|
|
var trailing_bookend_content, subscribed = stream_data.is_subscribed(stream);
|
|
if (subscribed) {
|
|
if (this.last_message_historical) {
|
|
trailing_bookend_content = "--- Subscribed to stream " + stream + " ---";
|
|
}
|
|
} else {
|
|
if (!this.last_message_historical) {
|
|
trailing_bookend_content = "--- Unsubscribed from stream " + stream + " ---";
|
|
} else {
|
|
trailing_bookend_content = "--- Not subscribed to stream " + stream + " ---";
|
|
}
|
|
}
|
|
if (trailing_bookend_content !== undefined) {
|
|
this.view.render_trailing_bookend(trailing_bookend_content);
|
|
}
|
|
},
|
|
|
|
start_summary_exemption: function MessageList_start_summary_exemption() {
|
|
var num_exempt = 8;
|
|
this.min_id_exempted_from_summaries = this.nth_most_recent_id(num_exempt);
|
|
},
|
|
|
|
unmuted_messages: function MessageList_unmuted_messages(messages) {
|
|
return _.reject(messages, function (message) {
|
|
return muting.is_topic_muted(message.stream, message.subject) &&
|
|
!message.mentioned;
|
|
});
|
|
},
|
|
|
|
append: function MessageList_append(messages, opts) {
|
|
opts = _.extend({delay_render: false, messages_are_new: false}, opts);
|
|
|
|
var viewable_messages;
|
|
if (this.muting_enabled) {
|
|
this._all_items = this._all_items.concat(messages);
|
|
viewable_messages = this.unmuted_messages(messages);
|
|
} else {
|
|
viewable_messages = messages;
|
|
}
|
|
this._items = this._items.concat(viewable_messages);
|
|
|
|
if (this.num_appends === 0) {
|
|
// We can't figure out which messages need to be exempt from
|
|
// summarization until we get the first batch of messages.
|
|
this.start_summary_exemption();
|
|
}
|
|
this.num_appends += 1;
|
|
|
|
this._add_to_hash(messages);
|
|
|
|
if (!opts.delay_render) {
|
|
this.view.append(viewable_messages, opts.messages_are_new);
|
|
}
|
|
},
|
|
|
|
prepend: function MessageList_prepend(messages) {
|
|
var viewable_messages;
|
|
if (this.muting_enabled) {
|
|
this._all_items = messages.concat(this._all_items);
|
|
viewable_messages = this.unmuted_messages(messages);
|
|
} else {
|
|
viewable_messages = messages;
|
|
}
|
|
this._items = viewable_messages.concat(this._items);
|
|
this._add_to_hash(messages);
|
|
this.view.prepend(viewable_messages);
|
|
},
|
|
|
|
add_and_rerender: function MessageList_add_and_rerender(messages) {
|
|
// To add messages that might be in the interior of our
|
|
// existing messages list, we just add the new messages and
|
|
// then rerender the whole thing.
|
|
|
|
var viewable_messages;
|
|
if (this.muting_enabled) {
|
|
this._all_items = messages.concat(this._all_items);
|
|
this._all_items.sort(function (a, b) {return a.id - b.id;});
|
|
|
|
viewable_messages = this.unmuted_messages(messages);
|
|
this._items = viewable_messages.concat(this._items);
|
|
|
|
} else {
|
|
this._items = messages.concat(this._items);
|
|
}
|
|
|
|
this._items.sort(function (a, b) {return a.id - b.id;});
|
|
this._add_to_hash(messages);
|
|
|
|
this.view.rerender_the_whole_thing();
|
|
},
|
|
|
|
remove_and_rerender: function MessageList_remove_and_rerender(messages) {
|
|
var self = this;
|
|
_.each(messages, function (message) {
|
|
var stored_message = self._hash[message.id];
|
|
if (stored_message !== undefined) {
|
|
delete self._hash[stored_message];
|
|
}
|
|
});
|
|
|
|
var msg_ids_to_remove = {};
|
|
_.each(messages, function (message) {
|
|
msg_ids_to_remove[message.id] = true;
|
|
});
|
|
this._items = _.filter(this._items, function (message) {
|
|
return !msg_ids_to_remove.hasOwnProperty(message.id);
|
|
});
|
|
if (this.muting_enabled) {
|
|
this._all_items = _.filter(this._all_items, function (message) {
|
|
return !msg_ids_to_remove.hasOwnProperty(message.id);
|
|
});
|
|
}
|
|
|
|
this.view.rerender_the_whole_thing();
|
|
this.select_id(this.selected_id(), {use_closest: true, empty_ok: true});
|
|
},
|
|
|
|
show_edit_message: function MessageList_show_edit_message(row, edit_obj) {
|
|
row.find(".message_edit_form").empty().append(edit_obj.form);
|
|
row.find(".message_content").hide();
|
|
row.find(".message_edit").show();
|
|
row.find(".message_edit_content").autosize();
|
|
},
|
|
|
|
hide_edit_message: function MessageList_hide_edit_message(row) {
|
|
row.find(".message_content").show();
|
|
row.find(".message_edit").hide();
|
|
},
|
|
|
|
show_edit_topic: function MessageList_show_edit_topic(recipient_row, form) {
|
|
recipient_row.find(".topic_edit_form").empty().append(form);
|
|
recipient_row.find(".stream_topic").hide();
|
|
recipient_row.find(".topic_edit").show();
|
|
},
|
|
|
|
hide_edit_topic: function MessageList_hide_edit_topic(recipient_row) {
|
|
recipient_row.find(".stream_topic").show();
|
|
recipient_row.find(".topic_edit").hide();
|
|
},
|
|
|
|
show_message_as_read: function (message, options) {
|
|
var row = this.get_row(message.id);
|
|
if ((options.from === 'pointer' && feature_flags.mark_read_at_bottom) ||
|
|
options.from === "server") {
|
|
row.find('.unread_marker').addClass('fast_fade');
|
|
} else {
|
|
row.find('.unread_marker').addClass('slow_fade');
|
|
}
|
|
row.removeClass('unread');
|
|
},
|
|
|
|
rerender: function MessageList_rerender() {
|
|
// We need to clear the rendering state, rather than just
|
|
// doing clear_table, since we want to potentially recollapse
|
|
// things.
|
|
this._selected_id = this.closest_id(this._selected_id);
|
|
this.view.clear_rendering_state(false);
|
|
this.view.update_render_window(this.selected_idx(), false);
|
|
this.view.rerender_preserving_scrolltop();
|
|
if (this._selected_id !== -1) {
|
|
this.select_id(this._selected_id);
|
|
}
|
|
},
|
|
|
|
rerender_after_muting_changes: function MessageList_rerender_after_muting_changes() {
|
|
if (!this.muting_enabled) {
|
|
return;
|
|
}
|
|
|
|
this._items = this.unmuted_messages(this._all_items);
|
|
this.rerender();
|
|
},
|
|
|
|
all: function MessageList_all() {
|
|
return this._items;
|
|
},
|
|
|
|
// Returns messages from the given message list in the specified range, inclusive
|
|
message_range: function MessageList_message_range(start, end) {
|
|
if (start === -1) {
|
|
blueslip.error("message_range given a start of -1");
|
|
}
|
|
|
|
var compare = function (a, b) { return a.id < b; };
|
|
|
|
var start_idx = util.lower_bound(this._items, start, compare);
|
|
var end_idx = util.lower_bound(this._items, end, compare);
|
|
return this._items.slice(start_idx, end_idx + 1);
|
|
},
|
|
|
|
get_row: function (id) {
|
|
return this.view.get_row(id);
|
|
},
|
|
|
|
change_display_recipient: function MessageList_change_display_recipient(old_recipient,
|
|
new_recipient) {
|
|
// This method only works for streams.
|
|
_.each(this._items, function (item) {
|
|
if (item.display_recipient === old_recipient) {
|
|
item.display_recipient = new_recipient;
|
|
item.stream = new_recipient;
|
|
}
|
|
});
|
|
this.view.rerender_the_whole_thing();
|
|
},
|
|
|
|
change_message_id: function MessageList_change_message_id(old_id, new_id) {
|
|
// Update our local cache that uses the old id to the new id
|
|
function message_sort_func(a, b) {return a.id - b.id;}
|
|
|
|
function is_local_only(message) {
|
|
return message.id % 1 !== 0;
|
|
}
|
|
|
|
function next_nonlocal_message(item_list, start_index, op) {
|
|
var cur_idx = start_index;
|
|
do {
|
|
cur_idx = op(cur_idx);
|
|
} while(item_list[cur_idx] !== undefined && is_local_only(item_list[cur_idx]));
|
|
return item_list[cur_idx];
|
|
}
|
|
|
|
if (this._hash.hasOwnProperty(old_id)) {
|
|
var value = this._hash[old_id];
|
|
delete this._hash[old_id];
|
|
this._hash[new_id] = value;
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
if (this._selected_id === old_id) {
|
|
this._selected_id = new_id;
|
|
}
|
|
|
|
if (this.min_id_exempted_from_summaries === old_id) {
|
|
this.min_id_exempted_from_summaries = new_id;
|
|
}
|
|
|
|
// If this message is now out of order, re-order and re-render
|
|
var self = this;
|
|
setTimeout(function () {
|
|
var current_message = self._hash[new_id];
|
|
var index = self._items.indexOf(current_message);
|
|
|
|
if (index === -1) {
|
|
if ( !self.muting_enabled && current_msg_list === self) {
|
|
blueslip.error("Trying to re-order message but can't find message with new_id in _items!");
|
|
}
|
|
return;
|
|
}
|
|
|
|
var next = next_nonlocal_message(self._items, index, function (idx) { return idx + 1; });
|
|
var prev = next_nonlocal_message(self._items, index, function (idx) { return idx - 1; });
|
|
|
|
if ((next !== undefined && current_message.id > next.id) ||
|
|
(prev !== undefined && current_message.id < prev.id)) {
|
|
blueslip.debug("Changed message ID from server caused out-of-order list, reordering");
|
|
self._items.sort(message_sort_func);
|
|
if (self.muting_enabled) {
|
|
self._all_items.sort(message_sort_func);
|
|
}
|
|
self.view.rerender_the_whole_thing();
|
|
}
|
|
}, 0);
|
|
}
|
|
};
|
|
|
|
// We stop autoscrolling when the user is clearly in the middle of
|
|
// doing something. Be careful, though, if you try to capture
|
|
// mousemove, then you will have to contend with the autoscroll
|
|
// itself generating mousemove events.
|
|
$(document).on('message_selected.zulip hashchange.zulip mousewheel', function (event) {
|
|
viewport.stop_auto_scrolling();
|
|
});
|
|
}());
|
|
/*jslint nomen: false */
|
|
if (typeof module !== 'undefined') {
|
|
module.exports = MessageList;
|
|
}
|