The app has a controller, that uses a service to create an instance of video player. The video player triggers events to show progress every few seconds. When the video reaches to a certain point, I want to show a widget on top of the video player.
The view has the widget wrapped in ng-show directive.
It takes more then 60 seconds for the dom element to receive the signal to remove the ng-hide class after the event has been triggered and the values have been populated.
If I try to implement this using the plain dom menthod (like document.getElementById(eleId).innerHTML = newHTML), the update is instant.
What am I doing wrong? Here is the complete sequence in code:
Controller:
MyApp.controller('SectionController', ['$scope', 'PlayerService'], function($scope, PlayerService){
$scope.createPlayer = function() {
PlayerService.createPlayer($scope, wrapperId);
}});
Service:
MyApp.service('PlayerService', [], function(){
this.createPlayer=function(controllerScope, playerWrapper){
PLAYER_SCRIPT.create(playerWrapper) {
wrapper : playerWrapper,
otherParam : value,
onCreate : function(player) {
player.subscribe(PLAY_TIME_CHANGE, function(duration){
showWidget(controllerScope, duration);
})
}
}
}
function showWidget(controllerScope, duration) {
if(duration>CERTAIN_TIME) {
$rootScope.widgetData = {some:data}
$rootScope.showWidget = true;
}
}});
View:
<div ng-show="showWidget"> <div class="wdgt">{{widgetData.stuff}}</div> </div>
Do you have complex angular stuff within your hidden view?
You should try to use ng-if instead of ng-show, the difference being that when the condition is false, ng-if will remove the element from the DOM instead of just hidding it (which is also what you do in vanilla JS).
When the view is simply hidden using ng-show however, all the watchers and bindings within it keep being computed by Angular. Let us know if ng-if solve your problem, otherwise I'll edit my answer.
Solved it! $scope.$apply() did the trick.
My guess is, due to other complex logic ad bindings inside the app, there was a delay in computing the change by angular the default way.
@floribon Thanks for the subtle hint about "complex angular stuff".
The code inside the service function changed to:
function showWidget(controllerScope, duration) {
if(duration>CERTAIN_TIME) {
$rootScope.widgetData = {some:data}
$rootScope.showWidget = true;
$rootScope.$apply();
}}