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Suggest "widening" searches in search autocomplete.

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This will allow you to always get Home from the search box,
as well as easily backing out narrows.

(imported from commit 68bcfc83ce0428645f4e734ae46f9589cb562a86)
This commit is contained in:
Steve Howell 2013-07-22 23:22:51 -04:00
parent 4b69094ffd
commit ffa178cf7a
1 changed files with 29 additions and 0 deletions
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29
zephyr/static/js/search.js
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@ -340,6 +340,32 @@ function get_topic_suggestions(query, query_operators) {
});
}
function get_operator_subset_suggestions(query, operators) {
// If you have stream:foo topic:x search:needle, then
// suggest "stream:foo" and "stream:foo topic:x" so that
// power users can use search as a quick mouse-free way
// to de-narrow. This won't cause too much clutter, as
// you generally only have 1 to 3 operators, and this gives
// N-1 additional suggestions.
if (operators.length < 1) {
return [];
}
var i;
var suggestions = [];
for (i = 0; i < operators.length; ++i) {
var subset = operators.slice(0, i);
var search_string = narrow.unparse(subset);
var description = describe(subset);
var suggestion = {description: description, search_string: search_string};
suggestions.push(suggestion);
}
return suggestions;
}
function get_special_filter_suggestions(query, operators) {
if (operators.length >= 2) {
return [];
@ -403,6 +429,9 @@ exports.initialize = function () {
suggestions = get_special_filter_suggestions(query, operators);
result = result.concat(suggestions);
suggestions = get_operator_subset_suggestions(query, operators);
result = result.concat(suggestions);
suggestions = get_stream_suggestions(query);
result = result.concat(suggestions);