<commit_before>// ==UserScript==
// @id             iitc-plugin-draw-tools@breunigs
// @name           iitc: draw tools
// @version        0.1
// @namespace      https://github.com/breunigs/ingress-intel-total-conversion
// @updateURL      https://raw.github.com/breunigs/ingress-intel-total-conversion/gh-pages/plugins/draw-tools.user.js
// @downloadURL    https://raw.github.com/breunigs/ingress-intel-total-conversion/gh-pages/plugins/draw-tools.user.js
// @description    Allows you to draw things into the current map so you may plan your next move
// @include        http://www.ingress.com/intel*
// @match          http://www.ingress.com/intel*
// ==/UserScript==

function wrapper() {
// ensure plugin framework is there, even if iitc is not yet loaded
if(typeof window.plugin !== 'function') window.plugin = function() {};


// PLUGIN START ////////////////////////////////////////////////////////

var DRAW_TOOLS_SHAPE_OPTIONS = {
  color: '#BB56FF',
  fill: false,
  opacity: 1,
  weight: 4,
  clickable: false
};

// use own namespace for plugin
window.plugin.drawTools = function() {};

window.plugin.drawTools.loadExternals = function() {
  var base = 'http://breunigs.github.com/ingress-intel-total-conversion/dist';
  //~ var base = 'http://0.0.0.0:8000/dist';
  $('head').append('<link rel="stylesheet" href="'+base+'/leaflet.draw.0.1.6.css" />');
  load(base+'/leaflet.draw.0.1.6.js').thenRun(window.plugin.drawTools.boot);
  // overwrite default Leaflet Marker icon.
  L.Icon.Default.imagePath = base + '/images';
}


window.plugin.drawTools.addStyles = function() {
  $('head').append('<style>.leaflet-control-draw a { color: #222; text-decoration: none; text-align: center; font-size: 17px; line-height: 22px; }</style>');
}

// renders buttons which are not originally part of Leaflet.draw, such
// as the clear-drawings button.
window.plugin.drawTools.addCustomButtons = function() {
  $('.leaflet-control-draw .leaflet-bar-part-bottom').removeClass('leaflet-bar-part-bottom');

  var undo = $('<a class="leaflet-bar-part" title="undo last" href="#">⎌</a>')
    .click(function() {
      var last = null;
      window.plugin.drawTools.drawnItems.eachLayer(function(l) {
        last = l;
      });
      if(last) window.plugin.drawTools.drawnItems.removeLayer(last);
    }
  );

  var clear = $('<a class="leaflet-bar-part leaflet-bar-part-bottom" title="clear drawings" href="#">✗</a>')
    .click(function() {
      window.plugin.drawTools.drawnItems.clearLayers();
    }
  );

  $('.leaflet-control-draw').append(undo).append(clear);
}

// renders the draw control buttons in the top left corner
window.plugin.drawTools.addDrawControl = function() {
  var drawControl = new L.Control.Draw({
    rectangle: false,
    polygon: false,

    polyline: {
      shapeOptions: DRAW_TOOLS_SHAPE_OPTIONS
    },

    circle: {
      shapeOptions: DRAW_TOOLS_SHAPE_OPTIONS
    }
  });
  map.addControl(drawControl);
  plugin.drawTools.addCustomButtons();
}

// hacks into circle to render the radius of the circle while drawing
// and to allow the center of the circle to snap to a nearby portal.
window.plugin.drawTools.enhanceCircle = function() {
  // replace _onMouseMove function to also display the radius of the
  // circle
  L.Circle.Draw.prototype._onMouseMove = function (e) {
    var layerPoint = e.layerPoint,
        latlng = e.latlng;

    this._updateLabelPosition(layerPoint);
    if (this._isDrawing) {
      var dist = this._startLatLng.distanceTo(latlng);
      dist = dist  > 1000
              ? (dist  / 1000).toFixed(2) + ' km'
              : Math.ceil(dist) + ' m';
      this._updateLabelText({
        text: 'Release mouse to finish drawing. ',
        subtext: 'radius: ' +dist }
      );
      this._drawShape(latlng);
    }
  }

  // replace _onMouseDown to implement snapping
  L.Circle.Draw.prototype._onMouseDown = function (e) {
    this._isDrawing = true;

    var snapTo = window.plugin.drawTools.getSnapLatLng(e.containerPoint);
    this._startLatLng = snapTo || e.latlng;

    L.DomEvent
      .on(document, 'mouseup', this._onMouseUp, this)
      .preventDefault(e.originalEvent);
  }
}

// hacks into PolyLine to implement snapping and to remove the polyline
// markers when they are not required anymore for finishing the line.
// Otherwise they get in the way and make it harder to create a closed
// polyline.
window.plugin.drawTools.enhancePolyLine = function() {
  // hack in snapping
  L.Polyline.Draw.prototype._onClickOld = L.Polyline.Draw.prototype._onClick;
  L.Polyline.Draw.prototype._onClick = function(e) {
    var cp = map.latLngToContainerPoint(e.target.getLatLng());
    var snapTo = window.plugin.drawTools.getSnapLatLng(cp);
    if(snapTo) e.target._latlng = snapTo;
    return this._onClickOld(e);
  }

  // remove polyline markers because they get in the way
  L.Polyline.Draw.prototype._updateMarkerHandler = function() {
    if(this._markers.length >= 2)
      this._markerGroup.removeLayer(this._markers.shift());

    if(this._markers.length >= 1)
      this._markers[this._markers.length - 1].on('click', this._finishShape(), this);
  }
}

// given a container point it tries to find the most suitable portal to
// snap to. It takes the CircleMarker’s radius and weight into account.
// Will return null if nothing to snap to or a LatLng instance.
window.plugin.drawTools.getSnapLatLng = function(containerPoint) {
  var candidates = [];
  $.each(window.portals, function(guid, portal) {
    var ll = portal.getLatLng();
    var pp = map.latLngToContainerPoint(ll);
    var size = portal.options.weight + portal.options.radius;
    var dist = pp.distanceTo(containerPoint);
    if(dist > size) return true;
    candidates.push([dist, ll]);
  });

  if(candidates.length === 0) return;
  candidates = candidates.sort(function(a, b) { return a[0]-b[0]; });
  return candidates[0][1];
}

window.plugin.drawTools.boot = function() {
  plugin.drawTools.enhanceCircle();<commit_msg>fix error when drawing polylines<commit_after>// ==UserScript==
// @id             iitc-plugin-draw-tools@breunigs
// @name           iitc: draw tools
// @version        0.1
// @namespace      https://github.com/breunigs/ingress-intel-total-conversion
// @updateURL      https://raw.github.com/breunigs/ingress-intel-total-conversion/gh-pages/plugins/draw-tools.user.js
// @downloadURL    https://raw.github.com/breunigs/ingress-intel-total-conversion/gh-pages/plugins/draw-tools.user.js
// @description    Allows you to draw things into the current map so you may plan your next move
// @include        http://www.ingress.com/intel*
// @match          http://www.ingress.com/intel*
// ==/UserScript==

function wrapper() {
// ensure plugin framework is there, even if iitc is not yet loaded
if(typeof window.plugin !== 'function') window.plugin = function() {};


// PLUGIN START ////////////////////////////////////////////////////////

var DRAW_TOOLS_SHAPE_OPTIONS = {
  color: '#BB56FF',
  fill: false,
  opacity: 1,
  weight: 4,
  clickable: false
};

// use own namespace for plugin
window.plugin.drawTools = function() {};

window.plugin.drawTools.loadExternals = function() {
  var base = 'http://breunigs.github.com/ingress-intel-total-conversion/dist';
  //~ var base = 'http://0.0.0.0:8000/dist';
  $('head').append('<link rel="stylesheet" href="'+base+'/leaflet.draw.0.1.6.css" />');
  load(base+'/leaflet.draw.0.1.6.js').thenRun(window.plugin.drawTools.boot);
  // overwrite default Leaflet Marker icon.
  L.Icon.Default.imagePath = base + '/images';
}


window.plugin.drawTools.addStyles = function() {
  $('head').append('<style>.leaflet-control-draw a { color: #222; text-decoration: none; text-align: center; font-size: 17px; line-height: 22px; }</style>');
}

// renders buttons which are not originally part of Leaflet.draw, such
// as the clear-drawings button.
window.plugin.drawTools.addCustomButtons = function() {
  $('.leaflet-control-draw .leaflet-bar-part-bottom').removeClass('leaflet-bar-part-bottom');

  var undo = $('<a class="leaflet-bar-part" title="undo last" href="#">⎌</a>')
    .click(function() {
      var last = null;
      window.plugin.drawTools.drawnItems.eachLayer(function(l) {
        last = l;
      });
      if(last) window.plugin.drawTools.drawnItems.removeLayer(last);
    }
  );

  var clear = $('<a class="leaflet-bar-part leaflet-bar-part-bottom" title="clear drawings" href="#">✗</a>')
    .click(function() {
      window.plugin.drawTools.drawnItems.clearLayers();
    }
  );

  $('.leaflet-control-draw').append(undo).append(clear);
}

// renders the draw control buttons in the top left corner
window.plugin.drawTools.addDrawControl = function() {
  var drawControl = new L.Control.Draw({
    rectangle: false,
    polygon: false,

    polyline: {
      shapeOptions: DRAW_TOOLS_SHAPE_OPTIONS
    },

    circle: {
      shapeOptions: DRAW_TOOLS_SHAPE_OPTIONS
    }
  });
  map.addControl(drawControl);
  plugin.drawTools.addCustomButtons();
}

// hacks into circle to render the radius of the circle while drawing
// and to allow the center of the circle to snap to a nearby portal.
window.plugin.drawTools.enhanceCircle = function() {
  // replace _onMouseMove function to also display the radius of the
  // circle
  L.Circle.Draw.prototype._onMouseMove = function (e) {
    var layerPoint = e.layerPoint,
        latlng = e.latlng;

    this._updateLabelPosition(layerPoint);
    if (this._isDrawing) {
      var dist = this._startLatLng.distanceTo(latlng);
      dist = dist  > 1000
              ? (dist  / 1000).toFixed(2) + ' km'
              : Math.ceil(dist) + ' m';
      this._updateLabelText({
        text: 'Release mouse to finish drawing. ',
        subtext: 'radius: ' +dist }
      );
      this._drawShape(latlng);
    }
  }

  // replace _onMouseDown to implement snapping
  L.Circle.Draw.prototype._onMouseDown = function (e) {
    this._isDrawing = true;

    var snapTo = window.plugin.drawTools.getSnapLatLng(e.containerPoint);
    this._startLatLng = snapTo || e.latlng;

    L.DomEvent
      .on(document, 'mouseup', this._onMouseUp, this)
      .preventDefault(e.originalEvent);
  }
}

// hacks into PolyLine to implement snapping and to remove the polyline
// markers when they are not required anymore for finishing the line.
// Otherwise they get in the way and make it harder to create a closed
// polyline.
window.plugin.drawTools.enhancePolyLine = function() {
  // hack in snapping
  L.Polyline.Draw.prototype._onClickOld = L.Polyline.Draw.prototype._onClick;
  L.Polyline.Draw.prototype._onClick = function(e) {
    var cp = map.latLngToContainerPoint(e.target.getLatLng());
    var snapTo = window.plugin.drawTools.getSnapLatLng(cp);
    if(snapTo) e.target._latlng = snapTo;
    return this._onClickOld(e);
  }

  // remove polyline markers because they get in the way
  L.Polyline.Draw.prototype._updateMarkerHandler = function() {
    if(!this._markers) return;

    if(this._markers.length >= 2)
      this._markerGroup.removeLayer(this._markers.shift());

    if(this._markers.length >= 1)
      this._markers[this._markers.length - 1].on('click', this._finishShape, this);
  }
}

// given a container point it tries to find the most suitable portal to
// snap to. It takes the CircleMarker’s radius and weight into account.
// Will return null if nothing to snap to or a LatLng instance.
window.plugin.drawTools.getSnapLatLng = function(containerPoint) {
  var candidates = [];
  $.each(window.portals, function(guid, portal) {
    var ll = portal.getLatLng();
    var pp = map.latLngToContainerPoint(ll);
    var size = portal.options.weight + portal.options.radius;
    var dist = pp.distanceTo(containerPoint);
    if(dist > size) return true;
    candidates.push([dist, ll]);
  });

  if(candidates.length === 0) return;
  candidates = candidates.sort(function(a, b) { return a[0]-b[0]; });
  return candidates[0][1];
}

window.plugin.drawTools.boot = function() {
  plugin.drawTools.enhanceCircle();
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