zulip/static/js/widgetize.js

108 lines
2.7 KiB
JavaScript

var widgetize = (function () {
var exports = {};
var widgets = {};
widgets.poll = voting_widget;
widgets.tictactoe = tictactoe_widget;
widgets.todo = todo_widget;
widgets.zform = zform;
var widget_contents = {};
exports.widget_contents = widget_contents;
function set_widget_in_message(row, widget_elem) {
var content_holder = row.find('.message_content');
content_holder.empty().append(widget_elem);
}
exports.activate = function (in_opts) {
var widget_type = in_opts.widget_type;
var extra_data = in_opts.extra_data;
var events = in_opts.events;
var row = in_opts.row;
var message = in_opts.message;
var post_to_server = in_opts.post_to_server;
events.shift();
if (!widgets[widget_type]) {
blueslip.warn('unknown widget_type', widget_type);
return;
}
var callback = function (data) {
post_to_server({
msg_type: 'widget',
data: data,
});
};
if (row.attr('id').startsWith('zhome') && narrow_state.active()) {
// Don't place widget in a home message row if we are narrowed
// to active state
return;
}
var widget_elem = widget_contents[message.id];
if (widget_elem) {
set_widget_in_message(row, widget_elem);
return;
}
// We depend on our widgets to use templates to build
// the HTML that will eventually go in this div.
widget_elem = $('<div>').addClass('widget-content');
widgets[widget_type].activate({
elem: widget_elem,
callback: callback,
message: message,
extra_data: extra_data,
});
widget_contents[message.id] = widget_elem;
set_widget_in_message(row, widget_elem);
// Replay any events that already happened. (This is common
// when you narrow to a message after other users have already
// interacted with it.)
if (events.length > 0) {
widget_elem.handle_events(events);
}
};
exports.set_widgets_for_list = function () {
_.each(widget_contents, function (widget_elem, idx) {
if (current_msg_list.get(idx) !== undefined) {
var row = current_msg_list.get_row(idx);
set_widget_in_message(row, widget_elem);
}
});
};
exports.handle_event = function (widget_event) {
var widget_elem = widget_contents[widget_event.message_id];
if (!widget_elem) {
// It is common for submessage events to arrive on
// messages that we don't yet have in view. We
// just ignore them completely here.
return;
}
var events = [widget_event];
widget_elem.handle_events(events);
};
return exports;
}());
if (typeof module !== 'undefined') {
module.exports = widgetize;
}
window.widgetize = widgetize;