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import * as DomUtil from '../../dom/DomUtil';
import * as Util from '../../core/Util';
import {Renderer} from './Renderer';
/*
* Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
*/
export var vmlCreate = (function () {
try {
document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
return function (name) {
return document.createElement('<lvml:' + name + ' class="lvml">');
};
} catch (e) {
return function (name) {
return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
};
}
})();
/*
* @class SVG
*
* Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.
*
* VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility
* with old versions of Internet Explorer.
*/
// mixin to redefine some SVG methods to handle VML syntax which is similar but with some differences
export var vmlMixin = {
_initContainer: function () {
this._container = DomUtil.create('div', 'leaflet-vml-container');
},
_update: function () {
if (this._map._animatingZoom) { return; }
Renderer.prototype._update.call(this);
this.fire('update');
},
_initPath: function (layer) {
var container = layer._container = vmlCreate('shape');
DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));
container.coordsize = '1 1';
layer._path = vmlCreate('path');
container.appendChild(layer._path);
this._updateStyle(layer);
this._layers[Util.stamp(layer)] = layer;
},
_addPath: function (layer) {
var container = layer._container;
this._container.appendChild(container);
if (layer.options.interactive) {
layer.addInteractiveTarget(container);
}
},
_removePath: function (layer) {
var container = layer._container;
DomUtil.remove(container);
layer.removeInteractiveTarget(container);
delete this._layers[Util.stamp(layer)];
},
_updateStyle: function (layer) {
var stroke = layer._stroke,
fill = layer._fill,
options = layer.options,
container = layer._container;
container.stroked = !!options.stroke;
container.filled = !!options.fill;
if (options.stroke) {
if (!stroke) {
stroke = layer._stroke = vmlCreate('stroke');
}
container.appendChild(stroke);
stroke.weight = options.weight + 'px';
stroke.color = options.color;
stroke.opacity = options.opacity;
if (options.dashArray) {
stroke.dashStyle = Util.isArray(options.dashArray) ?
options.dashArray.join(' ') :
options.dashArray.replace(/( *, *)/g, ' ');
} else {
stroke.dashStyle = '';
}
stroke.endcap = options.lineCap.replace('butt', 'flat');
stroke.joinstyle = options.lineJoin;
} else if (stroke) {
container.removeChild(stroke);
layer._stroke = null;
}
if (options.fill) {
if (!fill) {
fill = layer._fill = vmlCreate('fill');
}
container.appendChild(fill);
fill.color = options.fillColor || options.color;
fill.opacity = options.fillOpacity;
} else if (fill) {
container.removeChild(fill);
layer._fill = null;
}
},
_updateCircle: function (layer) {
var p = layer._point.round(),
r = Math.round(layer._radius),
r2 = Math.round(layer._radiusY || r);
this._setPath(layer, layer._empty() ? 'M0 0' :
'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));
},
_setPath: function (layer, path) {
layer._path.v = path;
},
_bringToFront: function (layer) {
DomUtil.toFront(layer._container);
},
_bringToBack: function (layer) {
DomUtil.toBack(layer._container);
}
};
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