Leaflet 'autoPan' does not work when popup is compiled by angular

[fbrandel]

Version: 0.7.15

Normally when a popup is opened, the map is scrolled so the popup is fully visible (see autoPan)
This functionally does not work when the popup content is compiled by an ngInclude directive.

[MarkAPhillips]

I have also noticed this issue when using the nginclude directive - autoPan was working correctly until I moved the html into a template.

[nmccready]

Your best bet is to dig into the directive and modify and play with it.
https://github.com/tombatossals/angular-leaflet-directive/blob/master/src/services/leafletMarkersHelpers.js#L122-L155

[MarkAPhillips]

After having some time to get back to this I have pinpointed the issue. It relates to the following

_adjustPan: function () {
        if (!this.options.autoPan) { return; }

        var map = this._map,
            containerHeight = this._container.offsetHeight,
            containerWidth = this._containerWidth,

            layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);

        if (this._animated) {
            layerPos._add(L.DomUtil.getPosition(this._container));
        }

        var containerPos = map.layerPointToContainerPoint(layerPos),
            padding = L.point(this.options.autoPanPadding),
            paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
            paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
            size = map.getSize(),
            dx = 0,
            dy = 0;

        if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
            dx = containerPos.x + containerWidth - size.x + paddingBR.x;
        }
        if (containerPos.x - dx - paddingTL.x < 0) { // left
            dx = containerPos.x - paddingTL.x;
        }
        if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
            dy = containerPos.y + containerHeight - size.y + paddingBR.y;
        }
        if (containerPos.y - dy - paddingTL.y < 0) { // top
            dy = containerPos.y - paddingTL.y;
        }
        if (dx || dy) {
            map
                .fire('autopanstart')
                .panBy([dx, dy]);
        }

in leaflet and the calculation of the offsetHeight of the container, which seems to be incorrect and therefore dx and dy are still 0 so the autopan does not work. I assume this is an issue with compiling the HTML i.e. leaflet obtains the container before it has compiled to HTML. I will take a look into it further but thought I would give an update in case anyone is interested.

[MarkAPhillips]

Ok seems that the _autoPan function is called first therefore does not have the correct settings

changing

 var updatePopup = function(popup) {
                popup._updateLayout();
                popup._updatePosition();
            };

            $compile(popup._contentNode)(markerScope);

            // In case of an ng-include, we need to update the content after template load
            if (popup._contentNode.innerHTML.indexOf("ngInclude") > -1) {
                var unregister = markerScope.$on('$includeContentLoaded', function() {
                    updatePopup(popup);
                    unregister();
                });
            }
            else {
                // We need to wait until after the next draw in order to get the correct width
                $timeout(function() {
                    updatePopup(popup);
                });
            }

to

 var updatePopup = function(popup,adjustPan) {
                popup._updateLayout();
                popup._updatePosition();
                if (adjustPan) {
                    popup._adjustPan();
                }
            };

            $compile(popup._contentNode)(markerScope);

            // In case of an ng-include, we need to update the content after template load
            if (popup._contentNode.innerHTML.indexOf("ngInclude") > -1) {
                var unregister = markerScope.$on('$includeContentLoaded', function () {
                    $timeout(function() {
                        updatePopup(popup, true);
                        unregister();
                    });
                });
            }
            else {
                // We need to wait until after the next draw in order to get the correct width
                $timeout(function() {
                    updatePopup(popup);
                });
            }
        };

seemed to fix it but would suggest someone review it. It seems if you call adjustPan explicitly it has the correct values. Please note I updated to 0.8.1 and notice you wrapped the update pop in the $timeout service - I think this is also required for the method calls in the $includeContentLoaded event.

@nmccready or @fbrandel can you review as whilst the above works I am not sure if the above has any other implications on other areas - thanks

[MarkAPhillips]

I will create a pull request for this as its important for my application - feel free to review. The only issue I have is that the _autopan method is called twice. When you explicitly call it as above this works but sometimes its not as smooth as I would like.

[j-r-t]

I'd like to just add for future reference that support needs to be added for https://github.com/erictheise/rrose or get this pushed out Leaflet/Leaflet#2324 for this autoPan feature to work with maxBounds

[j-r-t]

#800 changed this yet again