@graphhopper/directions-api-js-client
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A Javascript Client for the GraphHopper Directions API
190 lines (167 loc) • 6.64 kB
JavaScript
/**
* Copyright (C) 2013 Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
(function () {
// Retain the value of the original onAdd and onRemove functions
var originalOnAdd = L.Marker.prototype.onAdd;
var originalOnRemove = L.Marker.prototype.onRemove;
// Add bounceonAdd options
L.Marker.mergeOptions({
bounceOnAdd: false,
bounceOnAddOptions: {
duration: 1000,
height: -1
},
bounceOnAddCallback: function() {}
});
L.Marker.include({
_toPoint: function (latlng) {
return this._map.latLngToContainerPoint(latlng);
},
_toLatLng: function (point) {
return this._map.containerPointToLatLng(point);
},
_motionStep: function (opts) {
var self = this;
var start = new Date();
self._intervalId = setInterval(function () {
var timePassed = new Date() - start;
var progress = timePassed / opts.duration;
if (progress > 1) {
progress = 1;
}
var delta = opts.delta(progress);
opts.step(delta);
if (progress === 1) {
opts.end();
clearInterval(self._intervalId);
}
}, opts.delay || 10);
},
_bounceMotion: function (delta, duration, callback) {
var original = L.latLng(this._origLatlng),
start_y = this._dropPoint.y,
start_x = this._dropPoint.x,
distance = this._point.y - start_y;
var self = this;
this._motionStep({
delay: 10,
duration: duration || 1000, // 1 sec by default
delta: delta,
step: function (delta) {
self._dropPoint.y =
start_y
+ (distance * delta)
- (self._map.project(self._map.getCenter()).y - self._origMapCenter.y);
self._dropPoint.x =
start_x
- (self._map.project(self._map.getCenter()).x - self._origMapCenter.x);
self.setLatLng(self._toLatLng(self._dropPoint));
},
end: function () {
self.setLatLng(original);
if (typeof callback === "function") callback();
}
});
},
// Many thanks to Robert Penner for this function
_easeOutBounce: function (pos) {
if ((pos) < (1 / 2.75)) {
return (7.5625 * pos * pos);
} else if (pos < (2 / 2.75)) {
return (7.5625 * (pos -= (1.5 / 2.75)) * pos + 0.75);
} else if (pos < (2.5 / 2.75)) {
return (7.5625 * (pos -= (2.25 / 2.75)) * pos + 0.9375);
} else {
return (7.5625 * (pos -= (2.625 / 2.75)) * pos + 0.984375);
}
},
// Bounce : if options.height in pixels is not specified, drop from top.
// If options.duration is not specified animation is 1s long.
bounce: function(options, endCallback) {
this._origLatlng = this.getLatLng();
this._bounce(options, endCallback);
},
_bounce: function (options, endCallback) {
if (typeof options === "function") {
endCallback = options;
options = null;
}
options = options || {duration: 1000, height: -1};
//backward compatibility
if (typeof options === "number") {
options.duration = arguments[0];
options.height = arguments[1];
}
// Keep original map center
this._origMapCenter = this._map.project(this._map.getCenter());
this._dropPoint = this._getDropPoint(options.height);
this._bounceMotion(this._easeOutBounce, options.duration, endCallback);
},
// This will get you a drop point given a height.
// If no height is given, the top y will be used.
_getDropPoint: function (height) {
// Get current coordidates in pixel
this._point = this._toPoint(this._origLatlng);
var top_y;
if (height === undefined || height < 0) {
top_y = this._toPoint(this._map.getBounds()._northEast).y;
} else {
top_y = this._point.y - height;
}
return new L.Point(this._point.x, top_y);
},
onAdd: function (map) {
this._map = map;
// Keep original latitude and longitude
this._origLatlng = this._latlng;
// We need to have our drop point BEFORE adding the marker to the map
// otherwise, it would create a flicker. (The marker would appear at final
// location then move to its drop location, and you may be able to see it.)
if (this.options.bounceOnAdd === true) {
// backward compatibility
if (typeof this.options.bounceOnAddDuration !== 'undefined') {
this.options.bounceOnAddOptions.duration = this.options.bounceOnAddDuration;
}
// backward compatibility
if (typeof this.options.bounceOnAddHeight !== 'undefined') {
this.options.bounceOnAddOptions.height = this.options.bounceOnAddHeight;
}
this._dropPoint = this._getDropPoint(this.options.bounceOnAddOptions.height);
this.setLatLng(this._toLatLng(this._dropPoint));
}
// Call leaflet original method to add the Marker to the map.
originalOnAdd.call(this, map);
if (this.options.bounceOnAdd === true) {
this._bounce(this.options.bounceOnAddOptions, this.options.bounceOnAddCallback);
}
},
onRemove: function (map) {
clearInterval(this._intervalId);
originalOnRemove.call(this, map);
}
});
})();