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L.Edit = L.Edit || {};
/**
* @class L.Edit.SimpleShape
* @aka Edit.SimpleShape
*/
L.Edit.SimpleShape = L.Handler.extend({
options: {
moveIcon: new L.DivIcon({
iconSize: new L.Point(8, 8),
className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-move'
}),
resizeIcon: new L.DivIcon({
iconSize: new L.Point(8, 8),
className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-resize'
}),
touchMoveIcon: new L.DivIcon({
iconSize: new L.Point(20, 20),
className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-move leaflet-touch-icon'
}),
touchResizeIcon: new L.DivIcon({
iconSize: new L.Point(20, 20),
className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-resize leaflet-touch-icon'
}),
},
// @method intialize(): void
initialize: function (shape, options) {
// if touch, switch to touch icon
if (L.Browser.touch) {
this.options.moveIcon = this.options.touchMoveIcon;
this.options.resizeIcon = this.options.touchResizeIcon;
}
this._shape = shape;
L.Util.setOptions(this, options);
},
// @method addHooks(): void
// Add listener hooks to this handler
addHooks: function () {
var shape = this._shape;
if (this._shape._map) {
this._map = this._shape._map;
shape.setStyle(shape.options.editing);
if (shape._map) {
this._map = shape._map;
if (!this._markerGroup) {
this._initMarkers();
}
this._map.addLayer(this._markerGroup);
}
}
},
// @method removeHooks(): void
// Remove listener hooks from this handler
removeHooks: function () {
var shape = this._shape;
shape.setStyle(shape.options.original);
if (shape._map) {
this._unbindMarker(this._moveMarker);
for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
this._unbindMarker(this._resizeMarkers[i]);
}
this._resizeMarkers = null;
this._map.removeLayer(this._markerGroup);
delete this._markerGroup;
}
this._map = null;
},
// @method updateMarkers(): void
// Remove the edit markers from this layer
updateMarkers: function () {
this._markerGroup.clearLayers();
this._initMarkers();
},
_initMarkers: function () {
if (!this._markerGroup) {
this._markerGroup = new L.LayerGroup();
}
// Create center marker
this._createMoveMarker();
// Create edge marker
this._createResizeMarker();
},
_createMoveMarker: function () {
// Children override
},
_createResizeMarker: function () {
// Children override
},
_createMarker: function (latlng, icon) {
// Extending L.Marker in TouchEvents.js to include touch.
var marker = new L.Marker.Touch(latlng, {
draggable: true,
icon: icon,
zIndexOffset: 10
});
this._bindMarker(marker);
this._markerGroup.addLayer(marker);
return marker;
},
_bindMarker: function (marker) {
marker
.on('dragstart', this._onMarkerDragStart, this)
.on('drag', this._onMarkerDrag, this)
.on('dragend', this._onMarkerDragEnd, this)
.on('touchstart', this._onTouchStart, this)
.on('touchmove', this._onTouchMove, this)
.on('MSPointerMove', this._onTouchMove, this)
.on('touchend', this._onTouchEnd, this)
.on('MSPointerUp', this._onTouchEnd, this);
},
_unbindMarker: function (marker) {
marker
.off('dragstart', this._onMarkerDragStart, this)
.off('drag', this._onMarkerDrag, this)
.off('dragend', this._onMarkerDragEnd, this)
.off('touchstart', this._onTouchStart, this)
.off('touchmove', this._onTouchMove, this)
.off('MSPointerMove', this._onTouchMove, this)
.off('touchend', this._onTouchEnd, this)
.off('MSPointerUp', this._onTouchEnd, this);
},
_onMarkerDragStart: function (e) {
var marker = e.target;
marker.setOpacity(0);
this._shape.fire('editstart');
},
_fireEdit: function () {
this._shape.edited = true;
this._shape.fire('edit');
},
_onMarkerDrag: function (e) {
var marker = e.target,
latlng = marker.getLatLng();
if (marker === this._moveMarker) {
this._move(latlng);
} else {
this._resize(latlng);
}
this._shape.redraw();
this._shape.fire('editdrag');
},
_onMarkerDragEnd: function (e) {
var marker = e.target;
marker.setOpacity(1);
this._fireEdit();
},
_onTouchStart: function (e) {
L.Edit.SimpleShape.prototype._onMarkerDragStart.call(this, e);
if (typeof(this._getCorners) === 'function') {
// Save a reference to the opposite point
var corners = this._getCorners(),
marker = e.target,
currentCornerIndex = marker._cornerIndex;
marker.setOpacity(0);
// Copyed from Edit.Rectangle.js line 23 _onMarkerDragStart()
// Latlng is null otherwise.
this._oppositeCorner = corners[(currentCornerIndex + 2) % 4];
this._toggleCornerMarkers(0, currentCornerIndex);
}
this._shape.fire('editstart');
},
_onTouchMove: function (e) {
var layerPoint = this._map.mouseEventToLayerPoint(e.originalEvent.touches[0]),
latlng = this._map.layerPointToLatLng(layerPoint),
marker = e.target;
if (marker === this._moveMarker) {
this._move(latlng);
} else {
this._resize(latlng);
}
this._shape.redraw();
// prevent touchcancel in IOS
// e.preventDefault();
return false;
},
_onTouchEnd: function (e) {
var marker = e.target;
marker.setOpacity(1);
this.updateMarkers();
this._fireEdit();
},
_move: function () {
// Children override
},
_resize: function () {
// Children override
}
});
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