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e840e5b3a8
This reverts commit bcdd12773e.
We need to do some improvements in handling FetchStatus for initial
narrows before this will be safe to deploy in production.
731 lines
25 KiB
JavaScript
731 lines
25 KiB
JavaScript
var message_list = (function () {
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var exports = {};
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exports.narrowed = undefined;
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exports.MessageList = function (table_name, filter, opts) {
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_.extend(this, {
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collapse_messages: true,
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muting_enabled: true,
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}, opts);
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this.view = new MessageListView(this, table_name, this.collapse_messages);
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this.fetch_status = FetchStatus();
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if (this.muting_enabled) {
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this._all_items = [];
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}
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this._items = [];
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this._hash = {};
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this._local_only = {};
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this.table_name = table_name;
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this.filter = filter;
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this._selected_id = -1;
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if (this.filter === undefined) {
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this.filter = new Filter();
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}
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this.narrowed = this.table_name === "zfilt";
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this.num_appends = 0;
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return this;
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};
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exports.MessageList.prototype = {
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add_messages: function MessageList_add_messages(messages, opts) {
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var self = this;
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var predicate = self.filter.predicate();
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var top_messages = [];
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var bottom_messages = [];
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var interior_messages = [];
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// If we're initially populating the list, save the messages in
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// bottom_messages regardless
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if (self.selected_id() === -1 && self.empty()) {
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var narrow_messages = _.filter(messages, predicate);
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bottom_messages = _.reject(narrow_messages, function (msg) {
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return self.get(msg.id);
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});
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} else {
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_.each(messages, function (msg) {
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// Filter out duplicates that are already in self, and all messages
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// that fail our filter predicate
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if (! (self.get(msg.id) === undefined && predicate(msg))) {
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return;
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}
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// Put messages in correct order on either side of the
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// message list. This code path assumes that messages
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// is a (1) sorted, and (2) consecutive block of
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// messages that belong in this message list; those
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// facts should be ensured by the caller.
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if (self.empty() || msg.id > self.last().id) {
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bottom_messages.push(msg);
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} else if (msg.id < self.first().id) {
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top_messages.push(msg);
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} else {
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interior_messages.push(msg);
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}
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});
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}
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if (interior_messages.length > 0) {
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self.add_and_rerender(top_messages.concat(interior_messages).concat(bottom_messages));
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return true;
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}
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if (top_messages.length > 0) {
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self.prepend(top_messages);
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}
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if (bottom_messages.length > 0) {
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self.append(bottom_messages, opts);
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}
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if ((self === exports.narrowed) && !self.empty()) {
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// If adding some new messages to the message tables caused
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// our current narrow to no longer be empty, hide the empty
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// feed placeholder text.
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narrow.hide_empty_narrow_message();
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}
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if ((self === exports.narrowed) && !self.empty() &&
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(self.selected_id() === -1) && !opts.delay_render) {
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// And also select the newly arrived message.
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self.select_id(self.selected_id(), {then_scroll: true, use_closest: true});
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}
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},
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get: function MessageList_get(id) {
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id = parseFloat(id);
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if (isNaN(id)) {
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return;
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}
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return this._hash[id];
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},
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num_items: function MessageList_num_items() {
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return this._items.length;
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},
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empty: function MessageList_empty() {
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return this._items.length === 0;
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},
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first: function MessageList_first() {
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return this._items[0];
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},
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last: function MessageList_last() {
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return this._items[this._items.length - 1];
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},
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nth_most_recent_id: function MessageList_nth_most_recent_id(n) {
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var i = this._items.length - n;
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if (i < 0) {
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return -1;
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}
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return this._items[i].id;
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},
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clear: function MessageList_clear(opts) {
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opts = _.extend({clear_selected_id: true}, opts);
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if (this.muting_enabled) {
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this._all_items = [];
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}
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this._items = [];
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this._hash = {};
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this.view.clear_rendering_state(true);
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if (opts.clear_selected_id) {
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this._selected_id = -1;
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}
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},
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selected_id: function MessageList_selected_id() {
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return this._selected_id;
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},
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select_id: function MessageList_select_id(id, opts) {
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opts = _.extend({
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then_scroll: false,
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target_scroll_offset: undefined,
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use_closest: false,
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empty_ok: false,
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mark_read: true,
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force_rerender: false,
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}, opts, {
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id: id,
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msg_list: this,
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previously_selected: this._selected_id,
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});
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function convert_id(str_id) {
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var id = parseFloat(str_id);
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if (isNaN(id)) {
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blueslip.fatal("Bad message id " + str_id);
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}
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return id;
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}
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id = convert_id(id);
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var closest_id = this.closest_id(id);
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var error_data;
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// The name "use_closest" option is a bit legacy. We
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// are always gonna move to the closest visible id; the flag
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// just says whether we call blueslip.error or not. The caller
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// sets use_closest to true when it expects us to move the
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// pointer as needed, so only generate an error if the flag is
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// false.
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if (!opts.use_closest && closest_id !== id) {
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error_data = {
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table_name: this.table_name,
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id: id,
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closest_id: closest_id,
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};
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blueslip.error("Selected message id not in MessageList",
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error_data);
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}
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if (closest_id === -1 && !opts.empty_ok) {
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error_data = {
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table_name: this.table_name,
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id: id,
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items_length: this._items.length,
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};
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blueslip.fatal("Cannot select id -1", error_data);
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}
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id = closest_id;
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opts.id = id;
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this._selected_id = id;
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if (opts.force_rerender) {
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this.rerender();
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} else if (!opts.from_rendering) {
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this.view.maybe_rerender();
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}
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$(document).trigger($.Event('message_selected.zulip', opts));
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},
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reselect_selected_id: function MessageList_select_closest_id() {
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this.select_id(this._selected_id, {from_rendering: true});
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},
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selected_message: function MessageList_selected_message() {
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return this.get(this._selected_id);
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},
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selected_row: function MessageList_selected_row() {
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return this.get_row(this._selected_id);
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},
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// Returns the index where you could insert the desired ID
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// into the message list, without disrupting the sort order
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// This takes into account the potentially-unsorted
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// nature of local message IDs in the message list
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_lower_bound: function MessageList__lower_bound(id) {
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var self = this;
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function less_func(msg, ref_id, a_idx) {
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if (self._is_localonly_id(msg.id)) {
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// First non-local message before this one
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var effective = self._next_nonlocal_message(self._items, a_idx,
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function (idx) { return idx - 1; });
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if (effective) {
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// Turn the 10.02 in [11, 10.02, 12] into 11.02
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var decimal = parseFloat((msg.id % 1).toFixed(0.02));
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var effective_id = effective.id + decimal;
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return effective_id < ref_id;
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}
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}
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return msg.id < ref_id;
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}
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return util.lower_bound(self._items, id, less_func);
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},
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closest_id: function MessageList_closest_id(id) {
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// We directly keep track of local-only messages,
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// so if we're asked for one that we know we have,
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// just return it directly
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if (this._local_only.hasOwnProperty(id)) {
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return id;
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}
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var items = this._items;
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if (items.length === 0) {
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return -1;
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}
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var closest = this._lower_bound(id);
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if (closest < items.length && id === items[closest].id) {
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return items[closest].id;
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}
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var potential_closest_matches = [];
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if (closest > 0 && this._is_localonly_id(items[closest - 1].id)) {
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// Since we treated all blocks of local ids as their left-most-non-local message
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// for lower_bound purposes, find the real leftmost index (first non-local id)
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do {
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potential_closest_matches.push(closest);
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closest -= 1;
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} while (closest > 0 && this._is_localonly_id(items[closest - 1].id));
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}
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potential_closest_matches.push(closest);
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if (closest === items.length) {
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closest = closest - 1;
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} else {
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// Any of the ids that we skipped over (due to them being local-only) might be the
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// closest ID to the desired one, in case there is no exact match.
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potential_closest_matches.unshift(_.last(potential_closest_matches) - 1);
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var best_match = items[closest].id;
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_.each(potential_closest_matches, function (potential_idx) {
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if (potential_idx < 0) {
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return;
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}
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var item = items[potential_idx];
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if (item === undefined) {
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blueslip.warn('Invalid potential_idx: ' + potential_idx);
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return;
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}
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var potential_match = item.id;
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// If the potential id is the closest to the requested, save that one
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if (Math.abs(id - potential_match) < Math.abs(best_match - id)) {
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best_match = potential_match;
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closest = potential_idx;
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}
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});
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}
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return items[closest].id;
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},
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advance_past_messages: function MessageList_advance_past_messages(msg_ids) {
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// Start with the current pointer, but then keep advancing the
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// pointer while the next message's id is in msg_ids. See trac #1555
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// for more context, but basically we are skipping over contiguous
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// messages that we have recently visited.
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var next_msg_id = 0;
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var id_set = {};
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_.each(msg_ids, function (msg_id) {
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id_set[msg_id] = true;
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});
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var idx = this.selected_idx() + 1;
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while (idx < this._items.length) {
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var msg_id = this._items[idx].id;
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if (!id_set[msg_id]) {
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break;
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}
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next_msg_id = msg_id;
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idx += 1;
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}
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if (next_msg_id > 0) {
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this._selected_id = next_msg_id;
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}
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},
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_add_to_hash: function MessageList__add_to_hash(messages) {
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var self = this;
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messages.forEach(function (elem) {
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var id = parseFloat(elem.id);
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if (isNaN(id)) {
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blueslip.fatal("Bad message id");
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}
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if (self._is_localonly_id(id)) {
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self._local_only[id] = elem;
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}
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if (self._hash[id] !== undefined) {
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blueslip.error("Duplicate message added to MessageList");
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return;
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}
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self._hash[id] = elem;
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});
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},
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selected_idx: function MessageList_selected_idx() {
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return this._lower_bound(this._selected_id);
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},
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subscribed_bookend_content: function (stream_name) {
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return i18n.t("You subscribed to stream __stream__",
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{stream: stream_name});
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},
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unsubscribed_bookend_content: function (stream_name) {
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return i18n.t("You unsubscribed from stream __stream__",
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{stream: stream_name});
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},
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not_subscribed_bookend_content: function (stream_name) {
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return i18n.t("You are not subscribed to stream __stream__",
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{stream: stream_name});
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},
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// Maintains a trailing bookend element explaining any changes in
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// your subscribed/unsubscribed status at the bottom of the
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// message list.
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update_trailing_bookend: function MessageList_update_trailing_bookend() {
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this.view.clear_trailing_bookend();
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if (!this.narrowed) {
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return;
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}
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var stream_name = narrow_state.stream();
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if (stream_name === undefined) {
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return;
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}
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var trailing_bookend_content;
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var show_button = true;
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var subscribed = stream_data.is_subscribed(stream_name);
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if (subscribed) {
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trailing_bookend_content = this.subscribed_bookend_content(stream_name);
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} else {
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if (!this.last_message_historical) {
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trailing_bookend_content = this.unsubscribed_bookend_content(stream_name);
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// For invite only streams or streams that no longer
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// exist, hide the resubscribe button
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var sub = stream_data.get_sub(stream_name);
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if (sub !== undefined) {
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show_button = !sub.invite_only;
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} else {
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show_button = false;
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}
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} else {
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trailing_bookend_content = this.not_subscribed_bookend_content(stream_name);
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}
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}
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if (trailing_bookend_content !== undefined) {
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this.view.render_trailing_bookend(trailing_bookend_content, subscribed, show_button);
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}
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},
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unmuted_messages: function MessageList_unmuted_messages(messages) {
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return _.reject(messages, function (message) {
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return muting.is_topic_muted(message.stream, message.subject) &&
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!message.mentioned;
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});
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},
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append: function MessageList_append(messages, opts) {
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opts = _.extend({delay_render: false, messages_are_new: false}, opts);
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var viewable_messages;
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if (this.muting_enabled) {
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this._all_items = this._all_items.concat(messages);
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viewable_messages = this.unmuted_messages(messages);
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} else {
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viewable_messages = messages;
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}
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this._items = this._items.concat(viewable_messages);
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this.num_appends += 1;
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this._add_to_hash(messages);
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if (!opts.delay_render) {
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this.view.append(viewable_messages, opts.messages_are_new);
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}
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},
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prepend: function MessageList_prepend(messages) {
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var viewable_messages;
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if (this.muting_enabled) {
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this._all_items = messages.concat(this._all_items);
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viewable_messages = this.unmuted_messages(messages);
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} else {
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viewable_messages = messages;
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}
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this._items = viewable_messages.concat(this._items);
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this._add_to_hash(messages);
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this.view.prepend(viewable_messages);
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},
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add_and_rerender: function MessageList_add_and_rerender(messages) {
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// To add messages that might be in the interior of our
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// existing messages list, we just add the new messages and
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// then rerender the whole thing.
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var viewable_messages;
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if (this.muting_enabled) {
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this._all_items = messages.concat(this._all_items);
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this._all_items.sort(function (a, b) {return a.id - b.id;});
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viewable_messages = this.unmuted_messages(messages);
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this._items = viewable_messages.concat(this._items);
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} else {
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this._items = messages.concat(this._items);
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}
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this._items.sort(function (a, b) {return a.id - b.id;});
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this._add_to_hash(messages);
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this.view.rerender_the_whole_thing();
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},
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remove_and_rerender: function MessageList_remove_and_rerender(messages) {
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var self = this;
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_.each(messages, function (message) {
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var stored_message = self._hash[message.id];
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if (stored_message !== undefined) {
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delete self._hash[stored_message];
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}
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delete self._local_only[message.id];
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});
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var msg_ids_to_remove = {};
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_.each(messages, function (message) {
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msg_ids_to_remove[message.id] = true;
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});
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this._items = _.filter(this._items, function (message) {
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return !msg_ids_to_remove.hasOwnProperty(message.id);
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});
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if (this.muting_enabled) {
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this._all_items = _.filter(this._all_items, function (message) {
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return !msg_ids_to_remove.hasOwnProperty(message.id);
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});
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}
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this.rerender();
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},
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show_edit_message: function MessageList_show_edit_message(row, edit_obj) {
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row.find(".message_edit_form").empty().append(edit_obj.form);
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row.find(".message_content, .status-message").hide();
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row.find(".message_edit").css("display", "block");
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row.find(".message_edit_content").autosize();
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},
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hide_edit_message: function MessageList_hide_edit_message(row) {
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row.find(".message_content, .status-message").show();
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row.find(".message_edit").hide();
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row.trigger("mouseleave");
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},
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show_edit_topic: function MessageList_show_edit_topic(recipient_row, form) {
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recipient_row.find(".topic_edit_form").empty().append(form);
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recipient_row.find('.icon-vector-pencil').hide();
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recipient_row.find(".stream_topic").hide();
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recipient_row.find(".topic_edit").show();
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},
|
|
|
|
hide_edit_topic: function MessageList_hide_edit_topic(recipient_row) {
|
|
recipient_row.find(".stream_topic").show();
|
|
recipient_row.find('.icon-vector-pencil').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_messages: function MessageList_all_messages() {
|
|
return this._items;
|
|
},
|
|
|
|
first_unread_message_id: function MessageList_first_unread_message_id() {
|
|
var first_unread = _.find(this._items, function (message) {
|
|
return unread.message_unread(message);
|
|
});
|
|
|
|
if (first_unread) {
|
|
return first_unread.id;
|
|
}
|
|
|
|
// if no unread, return the bottom message
|
|
return this.last().id;
|
|
},
|
|
|
|
// 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 start_idx = this._lower_bound(start);
|
|
var end_idx = this._lower_bound(end);
|
|
return this._items.slice(start_idx, end_idx + 1);
|
|
},
|
|
|
|
get_row: function (id) {
|
|
return this.view.get_row(id);
|
|
},
|
|
|
|
_is_localonly_id: function MessageList__is_localonly_id(id) {
|
|
return id % 1 !== 0;
|
|
},
|
|
|
|
_next_nonlocal_message: function MessageList__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 && this._is_localonly_id(item_list[cur_idx].id));
|
|
return item_list[cur_idx];
|
|
},
|
|
|
|
update_user_full_name: function (user_id, full_name) {
|
|
_.each(this._items, function (item) {
|
|
if (item.sender_id && (item.sender_id === user_id)) {
|
|
item.sender_full_name = full_name;
|
|
}
|
|
});
|
|
this.view.rerender_the_whole_thing();
|
|
},
|
|
|
|
update_user_avatar: function (user_id, avatar_url) {
|
|
// TODO:
|
|
// We may want to de-dup some logic with update_user_full_name,
|
|
// especially if we want to optimize this with some kind of
|
|
// hash that maps sender_id -> messages.
|
|
_.each(this._items, function (item) {
|
|
if (item.sender_id && (item.sender_id === user_id)) {
|
|
item.small_avatar_url = avatar_url;
|
|
}
|
|
});
|
|
this.view.rerender_the_whole_thing();
|
|
},
|
|
|
|
update_stream_name: function MessageList_update_stream_name(stream_id,
|
|
new_stream_name) {
|
|
_.each(this._items, function (item) {
|
|
if (item.stream_id && (item.stream_id === stream_id)) {
|
|
item.display_recipient = new_stream_name;
|
|
item.stream = new_stream_name;
|
|
}
|
|
});
|
|
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;}
|
|
|
|
if (this._hash.hasOwnProperty(old_id)) {
|
|
var msg = this._hash[old_id];
|
|
delete this._hash[old_id];
|
|
this._hash[new_id] = msg;
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
if (this._local_only.hasOwnProperty(old_id)) {
|
|
if (this._is_localonly_id(new_id)) {
|
|
this._local_only[new_id] = this._local_only[old_id];
|
|
}
|
|
delete this._local_only[old_id];
|
|
}
|
|
|
|
if (this._selected_id === old_id) {
|
|
this._selected_id = 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 = self._next_nonlocal_message(self._items, index,
|
|
function (idx) { return idx + 1; });
|
|
var prev = self._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_preserving_scrolltop();
|
|
|
|
if (self._selected_id !== -1) {
|
|
self.select_id(self._selected_id);
|
|
}
|
|
}
|
|
}, 0);
|
|
},
|
|
|
|
get_last_message_sent_by_me: function () {
|
|
var msg_index = _.findLastIndex(this._items, {sender_id: page_params.user_id});
|
|
if (msg_index === -1) {
|
|
return;
|
|
}
|
|
var msg = this._items[msg_index];
|
|
return msg;
|
|
},
|
|
};
|
|
|
|
exports.all = new exports.MessageList(
|
|
undefined, undefined,
|
|
{muting_enabled: false}
|
|
);
|
|
|
|
// 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 zuliphashchange.zulip wheel', function () {
|
|
message_viewport.stop_auto_scrolling();
|
|
});
|
|
|
|
return exports;
|
|
|
|
}());
|
|
if (typeof module !== 'undefined') {
|
|
module.exports = message_list;
|
|
}
|