I'm using the Angular Material component framework.
I've defined a page with a md-sidenav called sidebar that is automatically shown (on the left of the screen) if resized to a certain width. This is possible thanks to the directive md-is-locked-open="$mdMedia('gt-sm')".
What I try to achieve seems quite straightforward: I just want to know (have an event triggered) when the sidenav is being shown / hidden (by user, or automatically). I've tried several different solutions, but nothing seem to be working.
I have a plunker that has the same behaviour as what I'm are trying to achieve. In the activate function, I try to capture the events (or what I thought would be events, doesn't seem so because it's not working).
I tried almost all the solutions that were given here and here, but no luck (specially when automatically showing / hiding the sidenav).
Any ideas here?
Thank you very much!
You could use the $mdMedia service in the controller instead of in the view. From the documentation
The media query will be re-evaluated on resize, allowing you to register a watch.
So you can register a watcher for your desired media query size, then call a function when the watcher fires:
$scope.$watch(function(){return $mdMedia('gt-sm');}, function(){
$scope.showSideNav = !$scope.showSideNav;
console.log("SideNav State Change");
});
Then I'd setup the sideNav like this:
md-is-locked-open="showSideNav"
Here is a working example, forked from your Plunker
Related
I have a classic dropdown menu on an Angular project with a main link always shown and a tree of sublinks shown only when hovering this one.
I have two events on the parent:
ng-mouseenter="vm.toggleDropdown($event)"
ng-mouseleave="vm.hideDropdowns($event)"
And they work perfectly fine. The main link has a simple:
ng-click="vm.navToState(item.urlState, $event)"
With a $state.go within to go to the string passed as parameter. On mobile devices, ng-mouseenter is being triggered on tap, showing the dropdown menu and this is perfect. The thing is that ng-click is being triggered too so the menu is only visible a fraction of a second before the next state loads. Is there any way to detect if ng-click is being fired by a touch event so I could add an if statement to navToState() and prevent the $state.go()? I understand that this way that main link would be unreachable in mobile but I'll take care of that adding an extra link within the dropdown.
Any other workaround for the same result is fine too.
Thanks!
Could you set a variable based on whether it is a mobile browser and use that as a check navToStart as to whether you state change or not, then have a separate state change function that doesn't care whether it's mobile or not so you can still change states in the mobile browser? That's one idea, but if it doesn't work, could be worth putting some code in your question for a reference.
Here's an answer on detecting mobile browsers:
https://stackoverflow.com/a/11381730/5349719
I have a very simple code snipper in my page where I have a span. Hovering over this span displays a popover for which I am using angular-ui-bootstrap.
<span uib-popover="This is a popover from Akhilesh"
ng-mouseenter="vm.logToConsole('I am trying hard...')"
popover-trigger="mouseenter">Hover over me to see a popup..!!</span>
Basically I have written a function which makes and API call when the user hovers over this span. The problem here is that let's say I have 10 span tags one below the other and the user quickly moves from 1st span to 10th span (in the process hovering over all 8 spans in between), the API call will get triggered for all the spans. This is what I do not intend to have.
Any idea how can I implement the debounce functionality here?
Use a delay, like one second, after the mouse enters the region, then if the mouse hasn't entered another area, make the API call.
The popover-is-open attribute was added under the 0.13.4 release that can be used to watch the state of your popover like so:
<span uib-popover="This is a popover from Akhilesh"
popover-is-open="vm.isOpen"
popover-trigger="mouseenter">Hover over me to see a popup..!!</span>
Then in your controller:
$scope.$watch('isOpen', function() { });
But if you are just trying to keep the popovers from opening so quickly, consider using the popover-open-delay attribute.
Depending on your use, I found the best method is to simply add ng-mouseover, ng-click etc to the element and define a function to be called.
You can even create a variable and attach it to that objects scope on the fly to keep track of the state (open close).
Kind of hacky, but there is currently no way to define a function that is called on open and on close within ui-bootstrap popover.
I've been reading up on animation with AngularJS and from my understanding, the ngAnimate module can be used out of the box with standard Angular directives. I also understand that css animation is encouraged as the first port of call.
In order to learn Angular, I created a dummy project and I wanted to have a panel fade in when a button is clicked and then have it fade out when clicked again. Since I come from a jquery background, my typical approach would be to use something along the lines of:
$('button').on('click', function() {
// If box is visible
$('.box').stop().fadeOut();
// If box is hidden
$('.box').stop().fadeIn();
});
However with Angular I'm not quite sure what the best way of accomplishing the same thing is. I've had a look at some tutorial vids and this demo is the approach I've come up with. The problem I'm having however is that if I rapidly click on the button it seems to glitch and the animations get screwed up. I suppose the questions I'm asking are a) Is my approach to fading in/out an element a wise one (since I really want to adopt an Angular mindset) and b) How do I replicate jquery's .stop() ie. how do I stop an animation to start another one instead?
I'm struggling a little in understanding how to do animations with Angular since it was so simple with jquery :-)
Thanks
I have the following example.
Two kendo UI buttons and two regular buttons. Both should enable/disable the button on bottom. Only the regular buttons do and I don't understand why. Probably has something to do with the scope...
EDIT:
From another example I have, it seems like the scope is updated correctly but the ui is not updated. In my example i have another control that when I click it the ui is suddenly being updated.
Found the answer:
When clicking the kendo button the scope does change but it doesn't go through angular so angular doesn't know that the scope was changed so the digest cycle doesn't run.
So adding $scope.$apply(); at the end of the function triggers the digest.
Took the explanation from here.
I have a popup in my application that is hidden when page is loaded and it appears only on click on a specific button.
I have the following code inside my popup DOM
<a ng-click="settings();">welcome</a>
The same code works when i have it in my DOM that is visible when the page loads. But inside the popup, it does not work. It never goes inside the settings() function. Can anyone help me with this?
You should probably create a directive for it. See the documentation and this example. Notice that a scope is applied to the return value of the compilation, effectively var compiled=$compile(element.contents()); compiled($scope);.
Note that there is already a built-in include directive in Angular which might do what you want. The example there responds to changes in a drop down, though you could easily adjust it to respond to a click event.