Calculate bounding box when deleting relations

[rails.git] / app / assets / javascripts / index / history.js

diff --git a/app/assets/javascripts/index/history.js b/app/assets/javascripts/index/history.js
index 367ad5214247013221eeda4e7f3402217c3c6170..6274c135feb9b5c5f19455901cfc78148d8a420c 100644 (file)
--- a/app/assets/javascripts/index/history.js
+++ b/app/assets/javascripts/index/history.js
@@ -1,3 +1,5 @@
+//= require jquery.simulate
+
 OSM.History = function(map) {
   var page = {};
 
@@ -9,8 +11,15 @@ OSM.History = function(map) {
     .on("mouseout", "[data-changeset]", function () {
       unHighlightChangeset($(this).data("changeset").id);
     })
-    .on("click", "[data-changeset]", function () {
-      clickChangeset($(this).data("changeset").id);
+    .on("mousedown", "[data-changeset]", function () {
+      var moved = false;
+      $(this).one("click", function (e) {
+        if (!moved && !$(e.target).is('a')) {
+          clickChangeset($(this).data("changeset").id, e);
+        }
+      }).one("mousemove", function () {
+        moved = true;
+      });
     });
 
   var group = L.featureGroup()
@@ -21,7 +30,7 @@ OSM.History = function(map) {
       unHighlightChangeset(e.layer.id);
     })
     .on("click", function (e) {
-      clickChangeset(e.layer.id);
+      clickChangeset(e.layer.id, e);
     });
 
   group.getLayerId = function(layer) {
@@ -38,20 +47,31 @@ OSM.History = function(map) {
     $("#changeset_" + id).removeClass("selected");
   }
 
-  function clickChangeset(id) {
-    OSM.route($("#changeset_" + id).find(".changeset_id").attr("href"));
+  function clickChangeset(id, e) {
+    $("#changeset_" + id).find("a.changeset_id").simulate("click", e);
   }
 
-  function loadData() {
+  function update() {
+    var data = {list: '1'};
+
+    if (window.location.pathname === '/history') {
+      data.bbox = map.getBounds().wrap().toBBoxString();
+    }
+
     $.ajax({
       url: window.location.pathname,
       method: "GET",
-      data: {bbox: map.getBounds().wrap().toBBoxString()},
-      success: function(html, status, xhr) {
+      data: data,
+      success: function(html) {
         $('#sidebar_content .changesets').html(html);
         updateMap();
       }
     });
+
+    var feedLink = $('link[type="application/atom+xml"]'),
+      feedHref = feedLink.attr('href').split('?')[0];
+
+    feedLink.attr('href', feedHref + '?bbox=' + data.bbox);
   }
 
   function loadMore(e) {
@@ -69,19 +89,30 @@ OSM.History = function(map) {
     });
   }
 
-  function updateMap() {
+  var changesets = [];
+
+  function updateBounds() {
     group.clearLayers();
 
-    var changesets = [];
+    changesets.forEach(function(changeset) {
+      var bottomLeft = map.project(L.latLng(changeset.bbox.minlat, changeset.bbox.minlon)),
+          topRight = map.project(L.latLng(changeset.bbox.maxlat, changeset.bbox.maxlon)),
+          width = topRight.x - bottomLeft.x,
+          height = bottomLeft.y - topRight.y,
+          minSize = 20;  // Min width/height of changeset in pixels
 
-    $("[data-changeset]").each(function () {
-      var changeset = $(this).data('changeset');
-      if (changeset.bbox) {
-        changeset.bounds = L.latLngBounds(
-          [changeset.bbox.minlat, changeset.bbox.minlon],
-          [changeset.bbox.maxlat, changeset.bbox.maxlon]);
-        changesets.push(changeset);
+      if (width < minSize) {
+        bottomLeft.x -= ((minSize - width) / 2);
+        topRight.x += ((minSize - width) / 2);
       }
+
+      if (height < minSize) {
+        bottomLeft.y += ((minSize - height) / 2);
+        topRight.y -= ((minSize - height) / 2);
+      }
+
+      changeset.bounds = L.latLngBounds(map.unproject(bottomLeft),
+                                        map.unproject(topRight));
     });
 
     changesets.sort(function (a, b) {
@@ -91,31 +122,48 @@ OSM.History = function(map) {
     for (var i = 0; i < changesets.length; ++i) {
       var changeset = changesets[i],
         rect = L.rectangle(changeset.bounds,
-          {weight: 1, color: "#FF9500", opacity: 1, fillColor: "#FFFFBF", fillOpacity: 0});
+          {weight: 2, color: "#FF9500", opacity: 1, fillColor: "#FFFFBF", fillOpacity: 0});
       rect.id = changeset.id;
       rect.addTo(group);
     }
   }
 
+  function updateMap() {
+    changesets = $("[data-changeset]").map(function (index,element) {
+      return $(element).data('changeset');
+    }).get().filter(function (changeset) {
+      return changeset.bbox;
+    });
+
+    updateBounds();
+
+    if (window.location.pathname !== '/history') {
+      var bounds = group.getBounds();
+      if (bounds.isValid()) map.fitBounds(bounds);
+    }
+  }
+
   page.pushstate = page.popstate = function(path) {
     $("#history_tab").addClass("current");
     OSM.loadSidebarContent(path, page.load);
   };
 
   page.load = function() {
-    map
-      .on("moveend", loadData)
-      .addLayer(group);
+    map.addLayer(group);
+
+    if (window.location.pathname === '/history') {
+      map.on("moveend", update);
+    }
 
-    loadData();
+    map.on("zoomend", updateBounds);
+
+    update();
   };
 
   page.unload = function() {
-    map
-      .off("moveend", loadData)
-      .removeLayer(group);
+    map.removeLayer(group);
+    map.off("moveend", update);
 
-    group.clearLayers();
     $("#history_tab").removeClass("current");
   };