imterah/element-portable
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix onRoomStateMember debouncing

Browse source 
Don't have debounced functions take arsg, because they won't be the same for each invocation.
This commit is contained in:
David Baker 2016-07-26 18:15:26 +01:00
parent 4ecf5f6372
commit 31399254b6
2 changed files with 20 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/ratelimitedfunc.js
View file

@ -14,6 +14,14 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* 'debounces' a function to only execute every n milliseconds.
* Useful when react-sdk gets many, many events but only wants
* to update the interface once for all of them.
*
* Note that the function must not take arguments, since the args
* could be different for each invocarion of the function.
*/
module.exports = function(f, minIntervalMs) {
this.lastCall = 0;
this.scheduledCall = undefined;
@ -23,13 +31,13 @@ module.exports = function(f, minIntervalMs) {
var now = Date.now();
if (self.lastCall < now - minIntervalMs) {
f.apply(this, arguments);
f.apply(this);
self.lastCall = now;
} else if (self.scheduledCall === undefined) {
self.scheduledCall = setTimeout(
() => {
self.scheduledCall = undefined;
f.apply(this, arguments);
f.apply(this);
self.lastCall = now;
},
(self.lastCall + minIntervalMs) - now