X-Git-Url: https://git-public.kairo.at/?p=lantea.git;a=blobdiff_plain;f=js%2Fui.js;h=352f7e78b6448a0fd4f5ef4ed0c677282ec90d6f;hp=8f036fe3197120fba565de901d0ad2eda594574d;hb=003d56f8a1eee6825cc6c800f135e13df753770d;hpb=4325517451df94848f3457b68572628d82b4e6d9

diff --git a/js/ui.js b/js/ui.js
index 8f036fe..352f7e7 100644
--- a/js/ui.js
+++ b/js/ui.js
@@ -55,47 +55,41 @@ window.onload = function() {
     gOSMAPIURL = "http://api06.dev.openstreetmap.org/";
   }
 
+  gAction.addEventListener("dbinit-done", initMap, false);
+  gAction.addEventListener("mapinit-done", postInit, false);
+  console.log("starting DB init...");
   initDB();
-  initMap();
-
-  var loopCnt = 0;
-  var waitForInitAndDraw = function() {
-    if ((gWaitCounter <= 0) || (loopCnt > 100)) {
-      if (gWaitCounter <= 0)
-        gWaitCounter = 0;
-      else
-        console.log("Loading failed (waiting for init).");
-
-      gMapPrefsLoaded = true;
-      resizeAndDraw();
-      gActionLabel.textContent = "";
-      gAction.style.display = "none";
-      setTracking(document.getElementById("trackCheckbox"));
-      gPrefs.get(gDebug ? "osm_dev_user" : "osm_user", function(aValue) {
-        if (aValue) {
-          document.getElementById("uploadUser").value = aValue;
-          document.getElementById("uploadTrackButton").disabled = false;
-        }
-      });
-      gPrefs.get(gDebug ? "osm_dev_pwd" : "osm_pwd", function(aValue) {
-        var upwd = document.getElementById("uploadPwd");
-        if (aValue)
-          document.getElementById("uploadPwd").value = aValue;
-      });
+}
+
+function postInit(aEvent) {
+  gAction.removeEventListener(aEvent.type, postInit, false);
+  console.log("init done, draw map.");
+  gMapPrefsLoaded = true;
+  resizeAndDraw();
+  gActionLabel.textContent = "";
+  gAction.style.display = "none";
+  setTracking(document.getElementById("trackCheckbox"));
+  gPrefs.get(gDebug ? "osm_dev_user" : "osm_user", function(aValue) {
+    if (aValue) {
+      document.getElementById("uploadUser").value = aValue;
+      document.getElementById("uploadTrackButton").disabled = false;
     }
-    else
-      setTimeout(waitForInitAndDraw, 100);
-    loopCnt++;
-  };
-  waitForInitAndDraw();
+  });
+  gPrefs.get(gDebug ? "osm_dev_pwd" : "osm_pwd", function(aValue) {
+    var upwd = document.getElementById("uploadPwd");
+    if (aValue)
+      document.getElementById("uploadPwd").value = aValue;
+  });
 }
 
 window.onresize = function() {
   resizeAndDraw();
 }
 
-function initDB() {
+function initDB(aEvent) {
   // Open DB.
+  if (aEvent)
+    gAction.removeEventListener(aEvent.type, initDB, false);
   var request = window.indexedDB.open("MainDB-lantea", 2);
   request.onerror = function(event) {
     // Errors can be handled here. Error codes explain in:
@@ -105,6 +99,8 @@ function initDB() {
   };
   request.onsuccess = function(event) {
     mainDB = request.result;
+    var throwEv = new CustomEvent("dbinit-done");
+    gAction.dispatchEvent(throwEv);
   };
   request.onupgradeneeded = function(event) {
     mainDB = request.result;
@@ -311,11 +307,19 @@ function saveTrackDump() {
 }
 
 function uploadTrack() {
+  // Hide all areas in the dialog.
   var dia = document.getElementById("dialogArea");
   var areas = dia.children;
   for (var i = 0; i <= areas.length - 1; i++) {
     areas[i].style.display = "none";
   }
+  // Reset all the fields in the status area.
+  document.getElementById("uploadStatusCloseButton").disabled = true;
+  document.getElementById("uploadInProgress").style.display = "block";
+  document.getElementById("uploadSuccess").style.display = "none";
+  document.getElementById("uploadErrorMsg").textContent = "";
+  document.getElementById("uploadError").style.display = "none";
+  // Now show the status area.
   document.getElementById("uploadStatus").style.display = "block";
 
   // See http://wiki.openstreetmap.org/wiki/Api06#Uploading_traces
@@ -329,22 +333,44 @@ function uploadTrack() {
   //formData.append("tags", "");
   formData.append("visibility",
                   document.getElementById("uploadVisibility").value);
-  var XHR = new XMLHttpRequest();
-  XHR.onreadystatechange = function() {
-    if (XHR.readyState == 4 && XHR.status == 200) {
-      // so far so good
-      reportUploadStatus(true);
-    } else if (XHR.readyState == 4 && XHR.status != 200) {
-      // fetched the wrong page or network error...
+  // Do an empty POST request first, so that we don't send everything,
+  // then ask for credentials, and then send again.
+  var hXHR = new XMLHttpRequest();
+  hXHR.onreadystatechange = function() {
+    if (hXHR.readyState == 4 && (XHR.status == 200 || hXHR.status == 400)) {
+      // 400 is Bad Request, but that's expected as this was empty.
+      // So far so good, init actual upload.
+      var XHR = new XMLHttpRequest();
+      XHR.onreadystatechange = function() {
+        if (XHR.readyState == 4 && XHR.status == 200) {
+          // Everthing looks fine.
+          reportUploadStatus(true);
+        } else if (XHR.readyState == 4 && XHR.status != 200) {
+          // Fetched the wrong page or network error...
+          reportUploadStatus(false);
+        }
+      };
+      XHR.open("POST", gOSMAPIURL + "api/0.6/gpx/create", true);
+      // Cross-Origin XHR doesn't allow username/password (HTTP Auth).
+      // So, we'll ask the user for entering credentials with rather ugly UI.
+      XHR.withCredentials = true;
+      try {
+        XHR.send(formData); // Send actual form data.
+      }
+      catch (e) {
+        reportUploadStatus(false, e);
+      }
+    } else if (hXHR.readyState == 4 && hXHR.status != 200) {
+      // Fetched the wrong page or network error...
       reportUploadStatus(false);
     }
   };
-  XHR.open("POST", gOSMAPIURL + "api/0.6/gpx/create", true);
+  hXHR.open("POST", gOSMAPIURL + "api/0.6/gpx/create", true);
   // Cross-Origin XHR doesn't allow username/password (HTTP Auth).
   // So, we'll ask the user for entering credentials with rather ugly UI.
-  XHR.withCredentials = true;
+  hXHR.withCredentials = true;
   try {
-    XHR.send(formData);
+    hXHR.send(); // Empty request, see above.
   }
   catch (e) {
     reportUploadStatus(false, e);
@@ -449,6 +475,24 @@ var gTrackStore = {
     }
   },
 
+  getListStepped: function(aCallback) {
+    if (!mainDB)
+      return;
+    var transaction = mainDB.transaction([this.objStore]);
+    var objStore = transaction.objectStore(this.objStore);
+    // Use cursor in reverse direction (so we get the most recent position first)
+    objStore.openCursor(null, "prev").onsuccess = function(event) {
+      var cursor = event.target.result;
+      if (cursor) {
+        aCallback(cursor.value);
+        cursor.continue();
+      }
+      else {
+        aCallback(null);
+      }
+    };
+  },
+
   push: function(aValue, aCallback) {
     if (!mainDB)
       return;