From 8aeec229f375bf24c9e295852fb6598f13c1ada2 Mon Sep 17 00:00:00 2001
From: Gergely Polonkai <gergely@polonkai.eu>
Date: Wed, 20 Aug 2014 20:23:14 +0200
Subject: [PATCH] Switch to WebKit 4.0 API

---
 configure.ac    |  2 +-
 src/ag-app.c    | 27 ++++++++++++++-------------
 src/ag-window.c | 24 ++++++++++++++++++------
 src/ag-window.h |  2 +-
 4 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/configure.ac b/configure.ac
index aef683b..8ba5c3f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,7 +35,7 @@ PKG_CHECK_MODULES([GOBJECT], [gobject-2.0])
 PKG_CHECK_MODULES([GTK], [gtk+-3.0 >= 3.12])
 PKG_CHECK_MODULES([LIBXML], [libxml-2.0])
 PKG_CHECK_MODULES([LIBXSLT], [libexslt])
-PKG_CHECK_MODULES([WEBKIT], [webkit2gtk-3.0])
+PKG_CHECK_MODULES([WEBKIT], [webkit2gtk-4.0])
 PKG_CHECK_MODULES([GDA], [libgda-5.0 libgda-sqlite-5.0])
 PKG_CHECK_MODULES([SWE_GLIB], [swe-glib >= 2.1.0])
 
diff --git a/src/ag-app.c b/src/ag-app.c
index aa6cb9c..d788b0a 100644
--- a/src/ag-app.c
+++ b/src/ag-app.c
@@ -9,7 +9,7 @@
 #include "astrognome.h"
 
 typedef struct _AgAppPrivate {
-    WebKitWebViewGroup *web_view_group;
+    WebKitUserContentManager *manager;
 } AgAppPrivate;
 
 G_DEFINE_TYPE_WITH_PRIVATE(AgApp, ag_app, GTK_TYPE_APPLICATION);
@@ -58,7 +58,7 @@ ag_app_create_window(AgApp *app)
     GtkWidget *window;
     AgAppPrivate *priv = ag_app_get_instance_private(app);
 
-    window = ag_window_new(app, priv->web_view_group);
+    window = ag_window_new(app, priv->manager);
     gtk_application_add_window(GTK_APPLICATION(app), GTK_WINDOW(window));
     gtk_widget_show_all(window);
 
@@ -424,13 +424,14 @@ ag_app_new(void)
 static void
 ag_app_init(AgApp *app)
 {
-    AgAppPrivate *priv;
-    GBytes       *css_data;
-    const gchar  *css_source;
-    gsize        css_length;
+    AgAppPrivate         *priv;
+    GBytes               *css_data;
+    const gchar          *css_source;
+    gsize                css_length;
+    WebKitUserStyleSheet *stylesheet;
 
     priv = ag_app_get_instance_private(app);
-    priv->web_view_group = webkit_web_view_group_new(NULL);
+    priv->manager = webkit_user_content_manager_new();
 
     css_data = g_resources_lookup_data(
             "/eu/polonkai/gergely/Astrognome/ui/chart-default.css",
@@ -439,14 +440,14 @@ ag_app_init(AgApp *app)
         );
 
     if ((css_source = g_bytes_get_data(css_data, &css_length)) != NULL) {
-          webkit_web_view_group_add_user_style_sheet(
-                priv->web_view_group,
+        stylesheet = webkit_user_style_sheet_new(
                 css_source,
-                NULL,
-                NULL,
-                NULL,
-                WEBKIT_INJECTED_CONTENT_FRAMES_TOP_ONLY
+                WEBKIT_USER_CONTENT_INJECT_TOP_FRAME,
+                WEBKIT_USER_STYLE_LEVEL_USER,
+                NULL, NULL
             );
+        webkit_user_content_manager_add_style_sheet(priv->manager, stylesheet);
+        webkit_user_style_sheet_unref(stylesheet);
     }
 
     g_bytes_unref(css_data);
diff --git a/src/ag-window.c b/src/ag-window.c
index bfdb6d0..e722129 100644
--- a/src/ag-window.c
+++ b/src/ag-window.c
@@ -393,9 +393,14 @@ ag_window_redraw_aspect_table(AgWindow *window)
 void
 ag_window_redraw_chart(AgWindow *window)
 {
+    gsize           length;
     GError          *err         = NULL;
     AgWindowPrivate *priv        = ag_window_get_instance_private(window);
-    gchar           *svg_content = ag_chart_create_svg(priv->chart, NULL, &err);
+    gchar           *svg_content = ag_chart_create_svg(
+            priv->chart,
+            &length,
+            &err
+        );
 
     if (svg_content == NULL) {
         ag_app_message_dialog(
@@ -405,11 +410,16 @@ ag_window_redraw_chart(AgWindow *window)
                 err->message
             );
     } else {
-        webkit_web_view_load_html(
+        GBytes *content;
+
+        content = g_bytes_new_take(svg_content, length);
+
+        webkit_web_view_load_bytes(
                 WEBKIT_WEB_VIEW(priv->chart_web_view),
-                svg_content, NULL
+                content, "image/svg+xml",
+                "UTF-8", NULL
             );
-        g_free(svg_content);
+        g_bytes_unref(content);
     }
 
     ag_window_redraw_aspect_table(window);
@@ -1671,12 +1681,14 @@ ag_window_configure_event_cb(GtkWidget         *widget,
 }
 
 GtkWidget *
-ag_window_new(AgApp *app, WebKitWebViewGroup *web_view_group)
+ag_window_new(AgApp *app, WebKitUserContentManager *manager)
 {
     AgWindow        *window = g_object_new(AG_TYPE_WINDOW, NULL);
     AgWindowPrivate *priv   = ag_window_get_instance_private(window);
 
-    priv->chart_web_view = webkit_web_view_new_with_group(web_view_group);
+    priv->chart_web_view = webkit_web_view_new_with_user_content_manager(
+            manager
+        );
     gtk_container_add(GTK_CONTAINER(priv->tab_chart), priv->chart_web_view);
 
     // TODO: translate this error message!
diff --git a/src/ag-window.h b/src/ag-window.h
index c4ba531..3ebb563 100644
--- a/src/ag-window.h
+++ b/src/ag-window.h
@@ -41,7 +41,7 @@ struct _AgWindowClass {
 
 GType ag_window_get_type(void) G_GNUC_CONST;
 
-GtkWidget *ag_window_new(AgApp *app, WebKitWebViewGroup *web_view_group);
+GtkWidget *ag_window_new(AgApp *app, WebKitUserContentManager *manager);
 
 void ag_window_set_chart(AgWindow *window,
                          AgChart  *chart);