[evolution/wip-webkit2] EWebView, EmailDisplay - Register custom URI schemes in *_class_init functions

[Tomas Popela <tpopela src gnome org>]

commit 0641739d90e5ce580491c83c63bd0af31275e92b
Author: Tomas Popela <tpopela redhat com>
Date:   Tue Sep 16 11:42:33 2014 +0200

    EWebView, EmailDisplay - Register custom URI schemes in *_class_init functions

 e-util/e-web-view.c   |  414 ++++++++++++++++++++++++------------------------
 mail/e-mail-display.c |   29 ++++
 2 files changed, 236 insertions(+), 207 deletions(-)
---
diff --git a/e-util/e-web-view.c b/e-util/e-web-view.c
index 3a0bce6..b5385f9 100644
--- a/e-util/e-web-view.c
+++ b/e-util/e-web-view.c
@@ -932,6 +932,195 @@ web_view_initialize (WebKitWebView *web_view)
                NULL, NULL, GTK_WIDGET (web_view));
 }
 
+static void
+web_view_process_uri_scheme_finished_cb (EWebView *web_view,
+                                         GAsyncResult *result,
+                                         WebKitURISchemeRequest *request)
+{
+       GError *error = NULL;
+
+       if (!g_task_propagate_boolean (G_TASK (result), &error)) {
+               if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
+                       g_warning ("URI %s cannot be processed: %s",
+                               webkit_uri_scheme_request_get_uri (request),
+                               error ? error->message : "Unknown error");
+               }
+               g_object_unref (request);
+               if (error)
+                       g_error_free (error);
+       }
+}
+
+static void
+web_view_process_file_uri_scheme_request (GTask *task,
+                                          gpointer source_object,
+                                          gpointer task_data,
+                                          GCancellable *cancellable)
+{
+       gboolean ret_val = FALSE;
+       const gchar *uri;
+       gchar *content = NULL;
+       gchar *content_type = NULL;
+       gchar *filename = NULL;
+       GInputStream *stream;
+       gsize length = 0;
+       GError *error = NULL;
+       WebKitURISchemeRequest *request = WEBKIT_URI_SCHEME_REQUEST (task_data);
+
+       uri = webkit_uri_scheme_request_get_uri (request);
+
+       filename = g_filename_from_uri (strstr (uri, "file"), NULL, &error);
+       if (!filename)
+               goto out;
+
+       if (!g_file_get_contents (filename, &content, &length, &error))
+               goto out;
+
+       content_type = g_content_type_guess (filename, NULL, 0, NULL);
+
+       stream = g_memory_input_stream_new_from_data (content, length, g_free);
+
+       webkit_uri_scheme_request_finish (request, stream, length, content_type);
+
+       ret_val = TRUE;
+ out:
+       g_free (content_type);
+       g_free (content);
+       g_free (filename);
+
+       if (ret_val)
+               g_object_unref (request);
+
+       if (error)
+               g_task_return_error (task, error);
+       else
+               g_task_return_boolean (task, ret_val);
+}
+
+static void
+web_view_file_uri_scheme_appeared_cb (WebKitURISchemeRequest *request)
+{
+       EWebView *web_view;
+       GTask *task;
+
+       printf ("%s\n", __FUNCTION__);
+       web_view = E_WEB_VIEW (webkit_uri_scheme_request_get_web_view (request));
+
+       task = g_task_new (
+               web_view, NULL,
+               (GAsyncReadyCallback) web_view_process_uri_scheme_finished_cb,
+               request);
+
+       g_task_set_task_data (task, g_object_ref (request), NULL);
+       g_task_run_in_thread (task, web_view_process_file_uri_scheme_request);
+
+       g_object_unref (task);
+}
+
+static void
+web_view_gtk_stock_uri_scheme_appeared_cb (WebKitURISchemeRequest *request)
+{
+       SoupURI *uri;
+       GHashTable *query = NULL;
+       GtkStyleContext *context;
+       GtkWidgetPath *path;
+       GtkIconSet *icon_set;
+       gssize size = GTK_ICON_SIZE_BUTTON;
+       gchar *a_size;
+       gchar *buffer = NULL;
+       gchar *content_type = NULL;
+       gsize buff_len = 0;
+       GError *local_error = NULL;
+
+       uri = soup_uri_new (webkit_uri_scheme_request_get_uri (request));
+
+       if (uri && uri->query)
+               query = soup_form_decode (uri->query);
+
+       if (query) {
+               a_size = g_hash_table_lookup (query, "size");
+               if (a_size != NULL)
+                       size = atoi (a_size);
+               g_hash_table_destroy (query);
+       }
+
+       /* Try style context first */
+       context = gtk_style_context_new ();
+       path = gtk_widget_path_new ();
+       gtk_widget_path_append_type (path, GTK_TYPE_WINDOW);
+       gtk_widget_path_append_type (path, GTK_TYPE_BUTTON);
+       gtk_style_context_set_path (context, path);
+       gtk_widget_path_free (path);
+
+       icon_set = gtk_style_context_lookup_icon_set (context, uri->host);
+       if (icon_set != NULL) {
+               GdkPixbuf *pixbuf;
+
+               pixbuf = gtk_icon_set_render_icon_pixbuf (
+                       icon_set, context, size);
+               gdk_pixbuf_save_to_buffer (
+                       pixbuf, &buffer, &buff_len,
+                       "png", &local_error, NULL);
+               g_object_unref (pixbuf);
+
+       /* Fallback to icon theme */
+       } else {
+               GtkIconTheme *icon_theme;
+               GtkIconInfo *icon_info;
+               const gchar *filename;
+
+               icon_theme = gtk_icon_theme_get_default ();
+
+               icon_info = gtk_icon_theme_lookup_icon (
+                       icon_theme, uri->host, size,
+                       GTK_ICON_LOOKUP_USE_BUILTIN);
+
+               filename = gtk_icon_info_get_filename (icon_info);
+               if (filename != NULL) {
+                       g_file_get_contents (
+                               filename, &buffer, &buff_len, &local_error);
+                       content_type =
+                               g_content_type_guess (filename, NULL, 0, NULL);
+
+               } else {
+                       GdkPixbuf *pixbuf;
+
+                       pixbuf = gtk_icon_info_get_builtin_pixbuf (icon_info);
+                       if (pixbuf != NULL) {
+                               gdk_pixbuf_save_to_buffer (
+                                       pixbuf, &buffer, &buff_len,
+                                       "png", &local_error, NULL);
+                               g_object_unref (pixbuf);
+                       }
+               }
+
+               gtk_icon_info_free (icon_info);
+       }
+
+       /* Sanity check */
+       g_return_if_fail (
+               ((buffer != NULL) && (local_error == NULL)) ||
+               ((buffer == NULL) && (local_error != NULL)));
+
+       if (!content_type)
+               content_type = g_strdup ("image/png");
+
+       if (buffer != NULL) {
+               GInputStream *stream;
+
+               stream = g_memory_input_stream_new_from_data (
+                       buffer, buff_len, (GDestroyNotify) g_free);
+
+               webkit_uri_scheme_request_finish (
+                       request, stream, buff_len, content_type);
+
+               g_object_unref (stream);
+       }
+
+       g_object_unref (context);
+       g_free (content_type);
+}
+
 
 static void
 web_view_constructed (GObject *object)
@@ -1552,9 +1741,27 @@ e_web_view_class_init (EWebViewClass *class)
 {
        GObjectClass *object_class;
        GtkWidgetClass *widget_class;
+       WebKitWebContext *web_context = webkit_web_context_get_default ();
 
        g_type_class_add_private (class, sizeof (EWebViewPrivate));
 
+       webkit_web_context_set_cache_model (
+               web_context, WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
+
+       webkit_web_context_register_uri_scheme (
+               web_context,
+               "evo-file",
+               (WebKitURISchemeRequestCallback) web_view_file_uri_scheme_appeared_cb,
+               NULL,
+               NULL);
+
+       webkit_web_context_register_uri_scheme (
+               web_context,
+               "gtk-stock",
+               (WebKitURISchemeRequestCallback) web_view_gtk_stock_uri_scheme_appeared_cb,
+               NULL,
+               NULL);
+
        object_class = G_OBJECT_CLASS (class);
        object_class->constructor = web_view_constructor;
        object_class->set_property = web_view_set_property;
@@ -1775,194 +1982,6 @@ e_web_view_selectable_init (ESelectableInterface *interface)
 }
 
 static void
-web_view_process_uri_scheme_finished_cb (EWebView *web_view,
-                                         GAsyncResult *result,
-                                         WebKitURISchemeRequest *request)
-{
-       GError *error = NULL;
-
-       if (!g_task_propagate_boolean (G_TASK (result), &error)) {
-               if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
-                       g_warning ("URI %s cannot be processed: %s",
-                               webkit_uri_scheme_request_get_uri (request),
-                               error ? error->message : "Unknown error");
-               }
-               g_object_unref (request);
-               if (error)
-                       g_error_free (error);
-       }
-}
-
-static void
-web_view_process_file_uri_scheme_request (GTask *task,
-                                          gpointer source_object,
-                                          gpointer task_data,
-                                          GCancellable *cancellable)
-{
-       gboolean ret_val = FALSE;
-       const gchar *uri;
-       gchar *content = NULL;
-       gchar *content_type = NULL;
-       gchar *filename = NULL;
-       GInputStream *stream;
-       gsize length = 0;
-       GError *error = NULL;
-       WebKitURISchemeRequest *request = WEBKIT_URI_SCHEME_REQUEST (task_data);
-
-       uri = webkit_uri_scheme_request_get_uri (request);
-
-       filename = g_filename_from_uri (strstr (uri, "file"), NULL, &error);
-       if (!filename)
-               goto out;
-
-       if (!g_file_get_contents (filename, &content, &length, &error))
-               goto out;
-
-       content_type = g_content_type_guess (filename, NULL, 0, NULL);
-
-       stream = g_memory_input_stream_new_from_data (content, length, g_free);
-
-       webkit_uri_scheme_request_finish (request, stream, length, content_type);
-
-       ret_val = TRUE;
- out:
-       g_free (content_type);
-       g_free (content);
-       g_free (filename);
-
-       if (ret_val)
-               g_object_unref (request);
-
-       if (error)
-               g_task_return_error (task, error);
-       else
-               g_task_return_boolean (task, ret_val);
-}
-
-static void
-web_view_file_uri_scheme_appeared_cb (WebKitURISchemeRequest *request)
-{
-       EWebView *web_view;
-       GTask *task;
-
-       web_view = E_WEB_VIEW (webkit_uri_scheme_request_get_web_view (request));
-
-       task = g_task_new (
-               web_view, NULL,
-               (GAsyncReadyCallback) web_view_process_uri_scheme_finished_cb,
-               request);
-
-       g_task_set_task_data (task, g_object_ref (request), NULL);
-       g_task_run_in_thread (task, web_view_process_file_uri_scheme_request);
-
-       g_object_unref (task);
-}
-
-static void
-web_view_gtk_stock_uri_scheme_appeared_cb (WebKitURISchemeRequest *request)
-{
-       SoupURI *uri;
-       GHashTable *query = NULL;
-       GtkStyleContext *context;
-       GtkWidgetPath *path;
-       GtkIconSet *icon_set;
-       gssize size = GTK_ICON_SIZE_BUTTON;
-       gchar *a_size;
-       gchar *buffer = NULL;
-       gchar *content_type = NULL;
-       gsize buff_len = 0;
-       GError *local_error = NULL;
-
-       uri = soup_uri_new (webkit_uri_scheme_request_get_uri (request));
-
-       if (uri && uri->query)
-               query = soup_form_decode (uri->query);
-
-       if (query) {
-               a_size = g_hash_table_lookup (query, "size");
-               if (a_size != NULL)
-                       size = atoi (a_size);
-               g_hash_table_destroy (query);
-       }
-
-       /* Try style context first */
-       context = gtk_style_context_new ();
-       path = gtk_widget_path_new ();
-       gtk_widget_path_append_type (path, GTK_TYPE_WINDOW);
-       gtk_widget_path_append_type (path, GTK_TYPE_BUTTON);
-       gtk_style_context_set_path (context, path);
-       gtk_widget_path_free (path);
-
-       icon_set = gtk_style_context_lookup_icon_set (context, uri->host);
-       if (icon_set != NULL) {
-               GdkPixbuf *pixbuf;
-
-               pixbuf = gtk_icon_set_render_icon_pixbuf (
-                       icon_set, context, size);
-               gdk_pixbuf_save_to_buffer (
-                       pixbuf, &buffer, &buff_len,
-                       "png", &local_error, NULL);
-               g_object_unref (pixbuf);
-
-       /* Fallback to icon theme */
-       } else {
-               GtkIconTheme *icon_theme;
-               GtkIconInfo *icon_info;
-               const gchar *filename;
-
-               icon_theme = gtk_icon_theme_get_default ();
-
-               icon_info = gtk_icon_theme_lookup_icon (
-                       icon_theme, uri->host, size,
-                       GTK_ICON_LOOKUP_USE_BUILTIN);
-
-               filename = gtk_icon_info_get_filename (icon_info);
-               if (filename != NULL) {
-                       g_file_get_contents (
-                               filename, &buffer, &buff_len, &local_error);
-                       content_type =
-                               g_content_type_guess (filename, NULL, 0, NULL);
-
-               } else {
-                       GdkPixbuf *pixbuf;
-
-                       pixbuf = gtk_icon_info_get_builtin_pixbuf (icon_info);
-                       if (pixbuf != NULL) {
-                               gdk_pixbuf_save_to_buffer (
-                                       pixbuf, &buffer, &buff_len,
-                                       "png", &local_error, NULL);
-                               g_object_unref (pixbuf);
-                       }
-               }
-
-               gtk_icon_info_free (icon_info);
-       }
-
-       /* Sanity check */
-       g_return_if_fail (
-               ((buffer != NULL) && (local_error == NULL)) ||
-               ((buffer == NULL) && (local_error != NULL)));
-
-       if (!content_type)
-               content_type = g_strdup ("image/png");
-
-       if (buffer != NULL) {
-               GInputStream *stream;
-
-               stream = g_memory_input_stream_new_from_data (
-                       buffer, buff_len, (GDestroyNotify) g_free);
-
-               webkit_uri_scheme_request_finish (
-                       request, stream, buff_len, content_type);
-
-               g_object_unref (stream);
-       }
-
-       g_object_unref (context);
-       g_free (content_type);
-}
-
-static void
 web_view_update_fonts (EWebView *web_view)
 {
        e_web_view_update_fonts (web_view);
@@ -2208,25 +2227,6 @@ initialize_web_extensions_cb (WebKitWebContext *web_context,
        /* Set the web extensions dir before the process is launched */
        webkit_web_context_set_web_extensions_directory (
                web_context, EVOLUTION_WEB_EXTENSIONS_DIR);
-
-       webkit_web_context_set_cache_model (
-               web_context, WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
-
-       webkit_web_context_register_uri_scheme (
-               web_context,
-               "evo-file",
-               (WebKitURISchemeRequestCallback) web_view_file_uri_scheme_appeared_cb,
-               NULL,
-               NULL);
-
-       webkit_web_context_register_uri_scheme (
-               web_context,
-               "gtk-stock",
-               (WebKitURISchemeRequestCallback) web_view_gtk_stock_uri_scheme_appeared_cb,
-               NULL,
-               NULL);
-
-       g_signal_emit (view, signals[REGISTER_URI_HANDLERS], 0, web_context);
 }
 
 void
diff --git a/mail/e-mail-display.c b/mail/e-mail-display.c
index db2dc28..0dafb81 100644
--- a/mail/e-mail-display.c
+++ b/mail/e-mail-display.c
@@ -2103,9 +2103,38 @@ e_mail_display_class_init (EMailDisplayClass *class)
        GObjectClass *object_class;
        EWebViewClass *web_view_class;
        GtkWidgetClass *widget_class;
+       WebKitWebContext *web_context = webkit_web_context_get_default ();
 
        g_type_class_add_private (class, sizeof (EMailDisplayPrivate));
 
+       webkit_web_context_register_uri_scheme (
+               web_context,
+               "evo-http",
+               (WebKitURISchemeRequestCallback) mail_display_http_uri_scheme_appeared_cb,
+               NULL,
+               NULL);
+
+       webkit_web_context_register_uri_scheme (
+               web_context,
+               "evo-https",
+               (WebKitURISchemeRequestCallback) mail_display_http_uri_scheme_appeared_cb,
+               NULL,
+               NULL);
+
+       webkit_web_context_register_uri_scheme (
+               web_context,
+               "mail",
+               (WebKitURISchemeRequestCallback) mail_display_mail_uri_scheme_appeared_cb,
+               NULL,
+               NULL);
+
+       webkit_web_context_register_uri_scheme (
+               web_context,
+               "cid",
+               (WebKitURISchemeRequestCallback) mail_display_cid_uri_scheme_appeared_cb,
+               NULL,
+               NULL);
+
        object_class = G_OBJECT_CLASS (class);
        object_class->constructed = mail_display_constructed;
        object_class->set_property = mail_display_set_property;