[epiphany] Re-adding basic ad blocking support

[Gustavo Noronha Silva <gns src gnome org>]

commit 3d4053a5f71175970712897a298a7ce95d3dfaef
Author: Gustavo Noronha Silva <gustavo noronha collabora co uk>
Date:   Tue Jun 30 16:29:51 2009 -0300

    Re-adding basic ad blocking support
    
    Bug #562762

 embed/ephy-embed.c |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)
---
diff --git a/embed/ephy-embed.c b/embed/ephy-embed.c
index f15fd18..c024f73 100644
--- a/embed/ephy-embed.c
+++ b/embed/ephy-embed.c
@@ -27,6 +27,7 @@
 
 #include "downloader-view.h"
 #include "eel-gconf-extensions.h"
+#include "ephy-adblock-manager.h"
 #include "ephy-command-manager.h"
 #include "ephy-debug.h"
 #include "ephy-embed.h"
@@ -196,6 +197,29 @@ restore_zoom_level (EphyEmbed *embed,
 }
 
 static void
+resource_request_starting_cb (WebKitWebView *web_view,
+                              WebKitWebFrame *web_frame,
+                              WebKitWebResource *web_resource,
+                              WebKitNetworkRequest *request,
+                              WebKitNetworkResponse *response,
+                              EphyEmbed *embed)
+{
+  EphyAdBlockManager *adblock_manager = EPHY_ADBLOCK_MANAGER(ephy_embed_shell_get_adblock_manager (embed_shell));
+  const char* uri = webkit_network_request_get_uri(request);
+
+  /* FIXME: How do we implement the other CHECK_TYPEs?  Perhaps we
+   * should figure out a way of adding more information about what the
+   * resource is for to WebResource? */
+  if(!ephy_adblock_manager_should_load(adblock_manager, embed, uri,
+                                       AD_URI_CHECK_TYPE_OTHER)) {
+    g_signal_emit_by_name (EPHY_WEB_VIEW (web_view),
+                           "content-blocked", uri);
+
+    webkit_network_request_set_uri(request, "about:blank");
+  }
+}
+
+static void
 load_status_changed_cb (WebKitWebView *view,
                         GParamSpec *spec,
                         EphyEmbed *embed)
@@ -750,6 +774,7 @@ ephy_embed_constructed (GObject *object)
 
   g_object_connect (web_view,
                     "signal::notify::load-status", G_CALLBACK (load_status_changed_cb), embed,
+                    "signal::resource-request-starting", G_CALLBACK (resource_request_starting_cb), embed,
                     "signal::hovering-over-link", G_CALLBACK (hovering_over_link_cb), embed,
                     "signal::mime-type-policy-decision-requested", G_CALLBACK (mime_type_policy_decision_requested_cb), embed,
                     "signal::download-requested", G_CALLBACK (download_requested_cb), embed,