Move param-based map configuration to client

This prepares us for hash-based permalinks (#81) and removes
the duplication between index.html.erb and SiteController#edit.
This commit is contained in:
John Firebaugh 2012-08-26 17:01:39 -07:00 committed by Tom Hughes
parent 14a7d1abfc
commit 0509fc8d12
7 changed files with 145 additions and 158 deletions

View file

@ -7,6 +7,7 @@
//= require openlayers
//= require i18n/translations
//= require globals
//= require params
//= require piwik
//= require browse
//= require export

View file

@ -0,0 +1,100 @@
OSM.mapParams = function (search) {
var params = {}, mapParams = {}, loc;
search = (search || window.location.search).replace('?', '').split('&');
for (var i = 0; i < search.length; ++i) {
var pair = search[i],
j = pair.indexOf('='),
key = pair.slice(0, j),
val = pair.slice(++j);
params[key] = decodeURIComponent(val);
}
if (params.mlon && params.mlat) {
mapParams.marker = true;
mapParams.mlon = parseFloat(params.mlon);
mapParams.mlat = parseFloat(params.mlat);
}
if (params.layers) {
mapParams.layers = params.layers;
}
if (params.node || params.way || params.relation) {
mapParams.object = true;
mapParams.object_zoom = true;
if (params.node) {
mapParams.object_type = 'node';
mapParams.object_id = parseInt(params.node);
} else if (params.way) {
mapParams.object_type = 'way';
mapParams.object_id = parseInt(params.way);
} else if (params.relation) {
mapParams.object_type = 'relation';
mapParams.object_id = parseInt(params.relation);
}
}
// Decide on a lat lon to initialise the map with. Various ways of doing this
if (params.bbox) {
var bbox = params.bbox.split(",");
mapParams.bbox = true;
mapParams.minlon = parseFloat(bbox[0]);
mapParams.minlat = parseFloat(bbox[1]);
mapParams.maxlon = parseFloat(bbox[2]);
mapParams.maxlat = parseFloat(bbox[3]);
mapParams.object_zoom = false;
} else if (params.minlon && params.minlat && params.maxlon && params.maxlat) {
mapParams.bbox = true;
mapParams.minlon = parseFloat(params.minlon);
mapParams.minlat = parseFloat(params.minlat);
mapParams.maxlon = parseFloat(params.maxlon);
mapParams.maxlat = parseFloat(params.maxlat);
mapParams.object_zoom = false;
} else if (params.lon && params.lat) {
mapParams.lon = parseFloat(params.lon);
mapParams.lat = parseFloat(params.lat);
mapParams.zoom = parseInt(params.zoom || 5);
mapParams.object_zoom = false;
} else if (params.mlon && params.mlat) {
mapParams.lon = parseFloat(params.mlon);
mapParams.lat = parseFloat(params.mlat);
mapParams.zoom = parseInt(params.zoom || 12);
mapParams.object_zoom = false;
} else if (loc = $.cookie('_osm_location')) {
loc = loc.split("|");
mapParams.lon = parseFloat(loc[0]);
mapParams.lat = parseFloat(loc[1]);
mapParams.zoom = parseInt(loc[2]);
mapParams.layers = loc[3];
} else if (OSM.home) {
mapParams.lon = OSM.home.lon;
mapParams.lat = OSM.home.lat;
mapParams.zoom = 10;
} else if (OSM.location) {
mapParams.bbox = true;
mapParams.minlon = OSM.location.minlon;
mapParams.minlat = OSM.location.minlat;
mapParams.maxlon = OSM.location.maxlon;
mapParams.maxlat = OSM.location.maxlat;
} else {
mapParams.lon = -0.1;
mapParams.lat = 51.5;
mapParams.zoom = parseInt(params.zoom || 5);
}
if (mapParams.bbox) {
mapParams.box = params.box == "yes";
mapParams.lon = (mapParams.minlon + mapParams.maxlon) / 2;
mapParams.lat = (mapParams.minlat + mapParams.maxlat) / 2;
}
var scale = parseFloat(params.scale);
if (scale > 0) {
mapParams.zoom = Math.log(360.0 / (scale * 512.0)) / Math.log(2.0);
}
return mapParams;
};

View file

@ -6,6 +6,12 @@ class SiteController < ApplicationController
before_filter :set_locale
before_filter :require_user, :only => [:edit]
def index
unless STATUS == :database_readonly or STATUS == :database_offline
session[:location] ||= OSM::IPLocation(request.env['REMOTE_ADDR'])
end
end
def permalink
lon, lat, zoom = ShortLink::decode(params[:code])
new_params = params.clone
@ -33,48 +39,6 @@ class SiteController < ApplicationController
if editor == "remote"
render :action => :index
else
# Decide on a lat lon to initialise potlatch with. Various ways of doing this
if params['lon'] and params['lat']
@lon = params['lon'].to_f
@lat = params['lat'].to_f
@zoom = params['zoom'].to_i
elsif params['mlon'] and params['mlat']
@lon = params['mlon'].to_f
@lat = params['mlat'].to_f
@zoom = params['zoom'].to_i
elsif params['bbox']
bbox = BoundingBox.from_bbox_params(params)
@lon = bbox.centre_lon
@lat = bbox.centre_lat
@zoom = 16
elsif params['minlon'] and params['minlat'] and params['maxlon'] and params['maxlat']
bbox = BoundingBox.from_lon_lat_params(params)
@lon = bbox.centre_lon
@lat = bbox.centre_lat
@zoom = 16
elsif params['gpx']
@lon = Trace.find(params['gpx']).longitude
@lat = Trace.find(params['gpx']).latitude
elsif cookies.key?("_osm_location")
@lon, @lat, @zoom, layers = cookies["_osm_location"].split("|")
elsif @user and !@user.home_lon.nil? and !@user.home_lat.nil?
@lon = @user.home_lon
@lat = @user.home_lat
else
#catch all. Do nothing. lat=nil, lon=nil
#Currently this results in potlatch starting up at 0,0 (Atlantic ocean).
end
@zoom = '17' if @zoom.nil?
end
end

View file

@ -21,6 +21,14 @@
I18n.defaultLocale = "<%= I18n.default_locale %>";
I18n.locale = "<%= I18n.locale %>";
I18n.fallbacks = true;
<% if @user and !@user.home_lon.nil? and !@user.home_lat.nil? %>
OSM.home = <%= { :lat => @user.home_lat, :lon => @user.home_lon }.to_json.html_safe %>;
<% end %>
<% if session[:location] %>
OSM.location = <%= session[:location].to_json.html_safe %>;
<% end %>
</script>
<title><%= t 'layouts.project_name.title' %><%= ' | '+ @title if @title %></title>
</head>

View file

@ -42,7 +42,8 @@
// 700,600 for fixed size, 100%,100% for resizable
}
doSWF(<%= @lat || 'null' %>,<%= @lon || 'null' %>,<%= @zoom %>);
var params = OSM.mapParams();
doSWF(params.lat, params.lon, params.zoom || 17);
$(document).ready(function () {
$("body").on("click", "a.set_position", function () {

View file

@ -69,8 +69,12 @@
<% elsif params[:way] -%>
<% bbox = Way.find(params[:way]).bbox.to_unscaled -%>
doSWF(<%= bbox.centre_lat %>,<%= bbox.centre_lon %>,16);
<% elsif params[:gpx] -%>
<% trace = Trace.find(params[:gpx]) -%>
doSWF(<%= trace.latitude %>,<%= trace.longitude %>,16);
<% else -%>
doSWF(<%= @lat || 'null' %>,<%= @lon || 'null' %>,<%= @zoom %>);
var params = OSM.mapParams();
doSWF(params.lat, params.lon, params.zoom || 17);
<% end -%>
$(document).ready(function () {

View file

@ -43,129 +43,45 @@
</table>
</div>
<%
if params[:mlon] and params[:mlat]
marker = true
mlon = params[:mlon].to_f
mlat = params[:mlat].to_f
end
if params[:node] or params[:way] or params[:relation]
object = true
object_zoom = true
if params[:node]
object_type = 'node'
object_id = params[:node].to_i
elsif params[:way]
object_type = 'way'
object_id = params[:way].to_i
elsif params[:relation]
object_type = 'relation'
object_id = params[:relation].to_i
end
end
# Decide on a lat lon to initialise the map with. Various ways of doing this
if params[:bbox]
bbox = true
minlon, minlat, maxlon, maxlat = params[:bbox].split(",").collect { |c| c.to_f }
layers = params[:layers]
box = true if params[:box] == "yes"
object_zoom = false
elsif params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat]
bbox = true
minlon = params[:minlon].to_f
minlat = params[:minlat].to_f
maxlon = params[:maxlon].to_f
maxlat = params[:maxlat].to_f
layers = params[:layers]
box = true if params[:box]=="yes"
object_zoom = false
elsif params[:lon] and params[:lat]
lon = params[:lon].to_f
lat = params[:lat].to_f
zoom = params.fetch(:zoom, 5).to_i
layers = params[:layers]
object_zoom = false
elsif params[:mlon] and params[:mlat]
lon = params[:mlon].to_f
lat = params[:mlat].to_f
zoom = params.fetch(:zoom, 12).to_i
layers = params[:layers]
object_zoom = false
elsif cookies.key?("_osm_location")
lon,lat,zoom,layers = cookies["_osm_location"].split("|")
elsif @user and !@user.home_lon.nil? and !@user.home_lat.nil?
lon = @user.home_lon
lat = @user.home_lat
zoom = 10
else
unless STATUS == :database_readonly or STATUS == :database_offline
session[:location] = OSM::IPLocation(request.env['REMOTE_ADDR']) unless session[:location]
end
if session[:location]
bbox = true
minlon = session[:location][:minlon]
minlat = session[:location][:minlat]
maxlon = session[:location][:maxlon]
maxlat = session[:location][:maxlat]
else
lon = -0.1
lat = 51.5
zoom = params.fetch(:zoom, 5).to_i
end
layers = params[:layers]
end
%>
<script type="text/javascript">
var marker;
var map;
var params = OSM.mapParams();
function mapInit(){
map = createMap("map");
<% unless object_zoom %>
<% if bbox %>
var bbox = new OpenLayers.Bounds(<%= minlon %>, <%= minlat %>, <%= maxlon %>, <%= maxlat %>);
if (!params.object_zoom) {
if (params.bbox) {
var bbox = new OpenLayers.Bounds(params.minlon, params.minlat, params.maxlon, params.maxlat);
map.zoomToExtent(proj(bbox));
<% if box %>
if (params.box) {
$(window).load(function() { addBoxToMap(bbox) });
<% end %>
<% else %>
var centre = new OpenLayers.LonLat(<%= lon %>, <%= lat %>);
<% if params[:scale].to_f > 0 then -%>
var zoom = <%= scale_to_zoom params[:scale] %>;
<% else -%>
var zoom = <%= zoom %>;
<% end -%>
}
} else {
setMapCenter(new OpenLayers.LonLat(params.lon, params.lat), params.zoom);
}
}
setMapCenter(centre, zoom);
<% end %>
<% end %>
if (params.layers) {
setMapLayers(params.layers);
}
<% if !layers.nil? and !layers.empty? %>
setMapLayers("<%= layers %>");
<% end %>
if (params.marker) {
marker = addMarkerToMap(new OpenLayers.LonLat(params.mlon, params.mlat));
}
<% if marker %>
marker = addMarkerToMap(new OpenLayers.LonLat(<%= mlon %>, <%= mlat %>));
<% end %>
if (params.object) {
var url = "/api/" + OSM.API_VERSION + "/" + params.object_type + "/" + params.object_id;
<% if object %>
var url = "/api/<%= "#{API_VERSION}" %>/<%= object_type %>/<%= object_id %>";
<% if object_type != "node" %>
if (params.object_type != "node") {
url += "/full";
<% end %>
}
$(window).load(function() { addObjectToMap(url, <%= object_zoom %>) });
<% end %>
$(window).load(function() { addObjectToMap(url, params.object_zoom) });
}
map.events.register("moveend", map, updateLocation);
map.events.register("changelayer", map, updateLocation);
@ -216,15 +132,8 @@ end
var layers = getMapLayers();
var extents = unproj(map.getExtent());
var expiry = new Date();
var objtype;
var objid;
<% if object %>
objtype = "<%= object_type %>";
objid = <%= object_id %>;
<% end %>
updatelinks(lonlat.lon, lonlat.lat, zoom, layers, extents.left, extents.bottom, extents.right, extents.top, objtype, objid);
updatelinks(lonlat.lon, lonlat.lat, zoom, layers, extents.left, extents.bottom, extents.right, extents.top, params.object_type, params.object_id);
expiry.setYear(expiry.getFullYear() + 10);
$.cookie("_osm_location", [lonlat.lon, lonlat.lat, zoom, layers].join("|"), {expires: expiry});