first trial of linked data map response

app/assets/javascripts/src/Metamaps.JIT.js

@@ -28,6 +28,8 @@ Metamaps.JIT = {
 
         $(".takeScreenshot").click(Metamaps.Map.exportImage);
 
+        $('.downloadMap').click(Metamaps.Map.downloadIt);
+
         self.topicDescImage = new Image();
         self.topicDescImage.src = '/assets/topic_description_signifier.png';
 

app/assets/javascripts/src/Metamaps.js

@@ -1,5 +1,36 @@
 var labelType, useGradients, nativeTextSupport, animate;
 
+window.downloadFile = function(sUrl, filename) {
+ 
+    //If in Chrome or Safari - download via virtual link click
+    if (window.downloadFile.isChrome || window.downloadFile.isSafari) {
+        //Creating new link node.
+        var link = document.createElement('a');
+        link.href = sUrl;
+ 
+        if (link.download !== undefined){
+            //Set HTML5 download attribute. This will prevent file from opening if supported.
+            link.download = filename;
+        }
+ 
+        //Dispatching click event.
+        if (document.createEvent) {
+            var e = document.createEvent('MouseEvents');
+            e.initEvent('click' ,true ,true);
+            link.dispatchEvent(e);
+            return true;
+        }
+    }
+ 
+    // Force file download (whether supported by server).
+    var query = '?download';
+ 
+    window.open(sUrl + query);
+}
+ 
+window.downloadFile.isChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
+window.downloadFile.isSafari = navigator.userAgent.toLowerCase().indexOf('safari') > -1;
+
 (function () {
     var ua = navigator.userAgent,
         iStuff = ua.match(/iPhone/i) || ua.match(/iPad/i),
@@ -4607,6 +4638,26 @@ Metamaps.Map = {
                 console.log('failed to save map screenshot');
             }
         });
+    },
+    downloadIt: function() {
+        var map = Metamaps.Active.Map;
+        var mapName = map.get("name").split(" ").join([separator = '-']);
+
+        var today = new Date();
+        var dd = today.getDate();
+        var mm = today.getMonth()+1; //January is 0!
+        var yyyy = today.getFullYear();
+        if(dd<10) {
+            dd='0'+dd
+        } 
+        if(mm<10) {
+            mm='0'+mm
+        }
+        today = mm+'/'+dd+'/'+yyyy;
+
+        var href = "/maps/" + map.id + "/contains.json";
+        var filename = "metamap-" + map.id + "-" + mapName + "-" + today + ".json"; // Set the file name.
+        window.downloadFile(href, filename);
     }
 };
 

app/assets/stylesheets/clean.css

@@ -915,6 +915,15 @@
     z-index: 4;
 }
 
+.downloadMap {
+    margin-bottom:5px;
+    border-radius: 2px;
+    color: #D5D5D5;
+    text-align: center;
+    padding-top: 6px;
+    height: 26px;
+}
+
 .takeScreenshot {
     margin-bottom: 5px;
     border-radius: 2px;
@@ -938,7 +947,7 @@
     background-position: -32px 0;
 }
 
-.zoomExtents:hover .tooltips, .zoomIn:hover .tooltips, .zoomOut:hover .tooltips, .takeScreenshot:hover .tooltips, .sidebarCollaborateIcon:hover .tooltipsUnder,
+.downloadMap:hover .tooltips, .zoomExtents:hover .tooltips, .zoomIn:hover .tooltips, .zoomOut:hover .tooltips, .takeScreenshot:hover .tooltips, .sidebarCollaborateIcon:hover .tooltipsUnder,
  .sidebarFilterIcon:hover .tooltipsUnder, .sidebarForkIcon:hover .tooltipsUnder, .addMap:hover .tooltipsUnder, .authenticated .sidebarAccountIcon:hover .tooltipsUnder,
  .mapInfoIcon:hover .tooltipsAbove, .openCheatsheet:hover .tooltipsAbove {
     display: block;
@@ -1033,7 +1042,7 @@
     margin-top: 40px;
 }
 
-.zoomExtents div::after, .zoomIn div::after, .zoomOut div::after, .takeScreenshot div:after {
+.downloadMap div::after, .zoomExtents div::after, .zoomIn div::after, .zoomOut div::after, .takeScreenshot div:after {
     content: '';
     position: absolute;
     top: 57%;

app/controllers/maps_controller.rb

@@ -1,4 +1,5 @@
 class MapsController < ApplicationController
+    include MapsHelper
 
     before_filter :require_user, only: [:create, :update, :screenshot, :destroy]
 
@@ -123,6 +124,21 @@ class MapsController < ApplicationController
         end
     end
 
+    # GET maps/:id/ld
+    def ld
+
+        @current = current_user
+        @map = Map.find(params[:id]).authorize_to_show(@current)
+
+        if not @map
+            redirect_to root_url, notice: "Access denied. That map is private." and return
+        end
+
+        respond_to do |format|
+            format.json { render json: linkeddata(@map) }
+        end
+    end
+
     # POST maps
     def create
 

app/controllers/metacodes_controller.rb

@@ -1,6 +1,6 @@
 class MetacodesController < ApplicationController
   
-  before_filter :require_admin, except: [:index]
+  before_filter :require_admin, except: [:index, :show]
     
   # GET /metacodes
   # GET /metacodes.json
@@ -23,14 +23,14 @@ class MetacodesController < ApplicationController
   ### SHOW IS CURRENTLY DISABLED
   # GET /metacodes/1
   # GET /metacodes/1.json
-#  def show
-#    @metacode = Metacode.find(params[:id])
-#
-#    respond_to do |format|
-#      format.html # show.html.erb
-#      format.json { render json: @metacode }
-#    end
-#  end
+  def show
+    @metacode = Metacode.find(params[:id])
+
+    respond_to do |format|
+      #format.html # show.html.erb
+      format.json { render json: @metacode }
+    end
+  end
 
   # GET /metacodes/new
   # GET /metacodes/new.json

app/helpers/maps_helper.rb

@@ -33,4 +33,39 @@ module MapsHelper
     return temp
   end
 
+  def linkeddata(map)
+  
+    @alltopics = map.topics.delete_if {|t| t.permission == "private" && (!authenticated? || (authenticated? && @current.id != t.user_id)) }
+
+    js = Hash.new()
+    
+    js['@context'] = { "@vocab" => "http://schema.org/", "mm" => "http://ns.metamaps.cc/", "mmc" => "http://metamaps.cc/metacodes/" }
+    js['@id'] = "http://metamaps.cc/maps/" + map.id.to_s
+    js['@type'] = [ "CreativeWork", "mm:Metamap" ]  
+    js['name'] = map.name
+    js['description'] = map.desc
+    
+    graph = []
+    
+    @alltopics.each do |t|
+      topic = Hash.new()
+      topic['@id'] = 'http://metamaps.cc/topics/' + t.id.to_s
+      topic['@type'] = [
+        'mmc:' + t.metacode_id.to_s
+      ]
+      topic['name'] = t.name
+      
+      t.synapses2.each do |s|
+        topic['http://metamaps.cc/synapses/' + s.id.to_s] = [ 'http://metamaps.cc/topics/' + s.node1_id.to_s ]
+      end
+      
+      graph.push(topic)
+    end
+    
+    js['@graph'] = graph
+    
+    return js
+  end
 end
+
+

app/views/layouts/_lowermapelements.html.erb

@@ -1,4 +1,5 @@
 <div class="mapControls mapElement">
+  <div href="/test/" class="downloadMap mapControl"><div class="tooltips">Download Map JSON</div>DL</div>
 	<div class="takeScreenshot mapControl"><div class="tooltips">Capture Screenshot</div></div>
 	<div class="zoomExtents mapControl"><div class="tooltips">Center View</div></div>
 	<div class="zoomIn mapControl"><div class="tooltips">Zoom In</div></div>

config/routes.rb

@@ -11,7 +11,7 @@ Metamaps::Application.routes.draw do
   
   resources :mappings, except: [:index, :new, :edit]
   resources :metacode_sets, :except => [:show]
-  resources :metacodes, :except => [:show, :destroy]
+  resources :metacodes, :except => [:destroy]
   resources :synapses, except: [:index, :new, :edit]
   resources :topics, except: [:index, :new, :edit] do
     get :autocomplete_topic, :on => :collection
@@ -26,6 +26,10 @@ Metamaps::Application.routes.draw do
   match 'explore/mapper/:id', to: 'maps#index', via: :get, as: :usermaps
   resources :maps, except: [:new, :edit]
   match 'maps/:id/contains', to: 'maps#contains', via: :get, as: :contains
+
+  # for linked data structure
+  match 'maps/:id/ld', to: 'maps#ld', via: :get, as: :ld
+
   match 'maps/:id/upload_screenshot', to: 'maps#screenshot', via: :post, as: :screenshot
   
   devise_for :users, controllers: { registrations: 'users/registrations', passwords: 'users/passwords', sessions: 'devise/sessions' }, :skip => [:sessions]