[gnome-online-accounts/wip/rishi/mobile-web-view] webview: Make it more flexible in terms of its size

[Debarshi Ray <debarshir src gnome org>]

commit c6c1944624e9f6520760da675df0334edc37d671
Author: Mohammed Sadiq <sadiq sadiqpk org>
Date:   Tue Jul 30 19:32:17 2019 +0200

    webview: Make it more flexible in terms of its size
    
    So far, the minimum size of a GoaWebView was set to 500x400, which
    meant that it couldn't be shrunk to fit smaller devices. This has now
    been made more flexible by changing the current minimum to be the
    default size, and using 300x200 as the new minimum.
    
    https://gitlab.gnome.org/GNOME/gnome-online-accounts/merge_requests/26

 src/goabackend/goawebview.c | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)
---
diff --git a/src/goabackend/goawebview.c b/src/goabackend/goawebview.c
index 8d1a55cf..5ff57809 100644
--- a/src/goabackend/goawebview.c
+++ b/src/goabackend/goawebview.c
@@ -266,6 +266,32 @@ web_view_script_message_received_password_submit_cb (GoaWebView *self, WebKitJav
   JSStringRelease (js_string);
 }
 
+static void
+goa_web_view_get_preferred_height (GtkWidget *widget, gint *minimum_size, gint *natural_size)
+{
+  if (minimum_size != NULL)
+    *minimum_size = 200;
+
+  if (natural_size != NULL)
+    *natural_size = 400;
+}
+
+static void
+goa_web_view_get_preferred_width (GtkWidget *widget, gint *minimum_size, gint *natural_size)
+{
+  if (minimum_size != NULL)
+    *minimum_size = 300;
+
+  if (natural_size != NULL)
+    *natural_size = 500;
+}
+
+static GtkSizeRequestMode
+goa_web_view_get_request_mode (GtkWidget *widget)
+{
+  return GTK_SIZE_REQUEST_CONSTANT_SIZE;
+}
+
 static void
 goa_web_view_constructed (GObject *object)
 {
@@ -298,7 +324,6 @@ goa_web_view_constructed (GObject *object)
                                              "user-content-manager", self->user_content_manager,
                                              "web-context", self->context,
                                              NULL));
-  gtk_widget_set_size_request (self->web_view, 500, 400);
   gtk_container_add (GTK_CONTAINER (self), self->web_view);
 
 #ifdef GOA_INSPECTOR_ENABLED
@@ -414,12 +439,17 @@ static void
 goa_web_view_class_init (GoaWebViewClass *klass)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 
   object_class->constructed = goa_web_view_constructed;
   object_class->dispose = goa_web_view_dispose;
   object_class->finalize = goa_web_view_finalize;
   object_class->set_property = goa_web_view_set_property;
 
+  widget_class->get_preferred_height = goa_web_view_get_preferred_height;
+  widget_class->get_preferred_width = goa_web_view_get_preferred_width;
+  widget_class->get_request_mode = goa_web_view_get_request_mode;
+
   g_object_class_install_property (object_class,
                                    PROP_EXISTING_IDENTITY,
                                    g_param_spec_string ("existing-identity",