A method to invoke a scope function prior to the template of an AngularJS directive being loaded

Question

A method to invoke a scope function prior to the template of an AngularJS directive being loaded

Utilizing the Bootstrap popover feature from https://angular-ui.github.io/bootstrap/ for my project, I have created a directive like this:

<button popover-template="dynamicPopover.templateUrl" popover-title="{{dynamicPopover.title}}" type="button" class="btn btn-default">Popover With Template</button>

. In order to make the popover display on the visible screen responsively, I had to customize the positioning function of Bootstrap.

To address this customization, I developed a function called

scope.getPopoverOnPosition = function {....}

, where I set a variable called scope.Position.

Within the template, I use:

"<button popover-template="dynamicPopover.templateUrl" popover-title="{{dynamicPopover.title}}" type="button" popover-placement='{{position}}' class="btn btn-default">Popover With Template</button>"

(specifying the direction sets an arrow pointed to the button relatively and also determines the top and left positions of the popover). However, I'm encountering an issue where the popover initially opens without a direction, blinks once, and then displays correctly.

My assumption is that the function is being called after the template initialization, causing a delay in reflecting the changes. Is there a way to achieve this functionality smoothly without any glitches?

javascript angularjs twitter-bootstrap

Answer 1

Answer №1

After encountering a similar issue, I discovered that manually displaying the popover after setting the position is more effective than relying on it to be displayed automatically with trigger: 'manual'.

To achieve this, create mouseenter and mouseout callbacks. Within the mouseenter callback, set the position and display the popover, and in the mouseout callback, hide it:

$('...').on('mouseenter', function() {
    //set placement then...
    $(this).popover('show');
});

$('...').on('mouseout', function() {
    $(this).popover('hide');
});

By following this approach, the popover will not appear automatically at the incorrect position initially but will only be shown once the placement has been specified.

Answer 2

After encountering a similar issue, I discovered that manually displaying the popover after setting the position is more effective than relying on it to be displayed automatically with trigger: 'manual'.

To achieve this, create mouseenter and mouseout callbacks. Within the mouseenter callback, set the position and display the popover, and in the mouseout callback, hide it:

$('...').on('mouseenter', function() {
    //set placement then...
    $(this).popover('show');
});

$('...').on('mouseout', function() {
    $(this).popover('hide');
});

By following this approach, the popover will not appear automatically at the incorrect position initially but will only be shown once the placement has been specified.

A method to invoke a scope function prior to the template of an AngularJS directive being loaded

Answer №1

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