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compose_ui: Create the compose_ui.replace_syntax function.

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`replace_syntax` will replace text inside of a compose textbox. Also,
add tests to the `compose_ui` Node tests for this function.
This commit is contained in:
Marco Burstein
2018-08-14 18:55:44 -07:00
committed by Tim Abbott
parent e204fe3948
commit fa22cf18f6
2 changed files with 28 additions and 2 deletions
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17
frontend_tests/node_tests/compose_ui.js
View File

@@ -43,8 +43,12 @@ function make_textbox(s) {
widget.focused = false;
};
widget.val = function () {
return widget.s;
widget.val = function (new_val) {
if (new_val) {
widget.s = new_val;
} else {
return widget.s;
}
};
widget.trigger = function () {
@@ -107,3 +111,12 @@ run_test('smart_insert', () => {
// like emojis and file links.
});
run_test('replace_syntax', () => {
$('#compose-textarea').val('abcabc');
compose_ui.replace_syntax('a', 'A');
assert.equal($('#compose-textarea').val(), 'Abcabc');
compose_ui.replace_syntax(/b/g, 'B');
assert.equal($('#compose-textarea').val(), 'ABcaBc');
});

13
static/js/compose_ui.js
View File

@@ -49,6 +49,19 @@ exports.insert_syntax_and_focus = function (syntax, textarea) {
exports.smart_insert(textarea, syntax);
};
exports.replace_syntax = function (old_syntax, new_syntax, textarea) {
// Replaces `old_syntax` with `new_syntax` text in the compose box. Due to
// the way that JavaScript handles string replacements, if `old_syntax` is
// a string it will only replace the first instance. If `old_syntax` is
// a RegExp with a global flag, it will replace all instances.
if (textarea === undefined) {
textarea = $('#compose-textarea');
}
textarea.val(textarea.val().replace(old_syntax, new_syntax));
};
return exports;
}());