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zjquery: Add selector param option to on() function.

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This commit is contained in:
Aditya Bansal 2017-07-06 03:48:15 +05:30 committed by Steve Howell
parent 638b32542d
commit 3b30701844
1 changed files with 30 additions and 3 deletions
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33
frontend_tests/zjsunit/zjquery.js
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@ -18,6 +18,7 @@ exports.make_zjquery = function () {
var attrs = new Dict();
var classes = new Dict();
var on_functions = new Dict();
var child_on_functions = new Dict();
function generic_event(event_name, arg) {
if (typeof(arg) === 'function') {
@ -113,9 +114,35 @@ exports.make_zjquery = function () {
generic_event('keyup', arg);
return self.wrapper;
},
on: function (name, f) {
var funcs = on_functions.setdefault(name, []);
funcs.push(f);
on: function () {
// parameters will either be
// (event_name, handler) or
// (event_name, sel, handler)
var event_name;
var sel;
var handler;
// For each event_name (or event_name/sel combo), we will store an
// array of functions that are mapped to the event (or event/selector).
//
// Usually funcs is an array of just one element, but not always.
var funcs;
if (arguments.length === 2) {
event_name = arguments[0];
handler = arguments[1];
funcs = on_functions.setdefault(event_name, []);
funcs.push(handler);
} else if (arguments.length === 3) {
event_name = arguments[0];
sel = arguments[1];
handler = arguments[2];
assert.equal(typeof(sel), 'string', 'String selectors expected here.');
assert.equal(typeof(handler), 'function', 'An handler function expected here.');
var child_on = child_on_functions.setdefault(sel, new Dict());
funcs = child_on.setdefault(event_name, []);
funcs.push(handler);
}
return self.wrapper;
},
parent: function () {