[gnome-maps] utils: Use Libsoup directly for HTTP(s) downloads

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 6fed9eacd2a8cd33957ae6948f6ecd0adb28c9e7
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Sep 3 19:15:56 2013 +0300

    utils: Use Libsoup directly for HTTP(s) downloads
    
    This currently applies to place icons from Nominatim.

 src/utils.js |   40 ++++++++++++++++++++++++++++++++++++++++
 1 files changed, 40 insertions(+), 0 deletions(-)
---
diff --git a/src/utils.js b/src/utils.js
index 6a8082c..c43e31a 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -31,6 +31,7 @@ const Geocode = imports.gi.GeocodeGlib;
 const GdkPixbuf = imports.gi.GdkPixbuf;
 const Clutter = imports.gi.Clutter;
 const Cogl = imports.gi.Cogl;
+const Soup = imports.gi.Soup;
 
 const _ = imports.gettext.gettext;
 
@@ -149,6 +150,11 @@ function _load_file_icon(icon, loadCompleteCallback) {
         return;
     }
 
+    if (icon.file.has_uri_scheme ("http") || icon.file.has_uri_scheme ("https")) {
+        _load_http_icon(icon, loadCompleteCallback);
+        return;
+    }
+
     icon.load_async(-1, null, function(icon, res) {
         try {
             let stream = icon.load_finish(res, null)[0];
@@ -164,6 +170,40 @@ function _load_file_icon(icon, loadCompleteCallback) {
     });
 }
 
+function _load_http_icon(icon, loadCompleteCallback) {
+    let msg = Soup.form_request_new_from_hash('GET', icon.file.get_uri(), {});
+    let soup_session = _get_soup_session();
+
+    soup_session.queue_message(msg, function(session, msg) {
+        if (msg.status_code != Soup.KnownStatusCode.OK) {
+            log("Failed to load pixbuf: " + msg.reason_phrase);
+            return;
+        }
+
+        let contents = msg.response_body.flatten().get_as_bytes();
+        let stream = Gio.MemoryInputStream.new_from_data
+                    (contents.get_data (null));
+        try {
+            let pixbuf = GdkPixbuf.Pixbuf.new_from_stream(stream, null);
+
+            _iconStore[icon.file.get_uri()] = pixbuf;
+            loadCompleteCallback(pixbuf);
+        } catch(e) {
+            log("Failed to load pixbuf: " + e);
+        }
+    });
+}
+
+let soup_session = null;
+function _get_soup_session() {
+    if (soup_session === null) {
+        log ("creating soup");
+        soup_session = new Soup.Session ();
+    }
+
+    return soup_session;
+}
+
 function _load_themed_icon(icon, size, loadCompleteCallback) {
     let theme = Gtk.IconTheme.get_default();
     let flags = Gtk.IconLookupFlags.GENERIC_FALLBACK;