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composebox_typeahead: Extract autocomplete_checks.

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This commit is contained in:
Tim Abbott
2016-11-01 20:04:56 -07:00
parent 1d1c41551b
commit ae336ce8b5
1 changed files with 19 additions and 10 deletions
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29
static/js/composebox_typeahead.js
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@@ -174,6 +174,23 @@ function select_on_focus(field_id) {
});
}
function autocomplete_checks(q, char) {
// Don't autocomplete more than this many characters.
var max_chars = 30;
var last_at = q.lastIndexOf(char);
if (last_at === -1 || last_at < q.length-1 - max_chars) {
return false; // char doesn't appear, or too far back
}
// Only match if the char follows a space, various punctuation,
// or is at the beginning of the string.
if (last_at > 0 && "\n\t \"'(){}[]".indexOf(q[last_at-1]) === -1) {
return false;
}
return true;
}
exports.split_at_cursor = function (query, input) {
var cursor = input.caret();
return [query.slice(0, cursor), query.slice(cursor)];
@@ -207,19 +224,11 @@ exports.compose_content_begins_typeahead = function (query) {
return false;
}
// Don't autocomplete more than this many characters.
var max_chars = 30;
var last_at = q.lastIndexOf('@');
if (last_at === -1 || last_at < q.length-1 - max_chars) {
return false; // No '@', or too far back
}
// Only match if the @ follows a space, various punctuation,
// or is at the beginning of the string.
if (last_at > 0 && "\n\t \"'(){}[]".indexOf(q[last_at-1]) === -1) {
if (!autocomplete_checks(q, '@')) {
return false;
}
var last_at = q.lastIndexOf('@');
current_token = q.substring(last_at + 1);
if (current_token.length < 1 || current_token.lastIndexOf('*') !== -1) {
return false;