[epiphany] ephy-window.c: workaround bug in WebKit progress notification

[Xan Lopez <xan src gnome org>]

commit fe64e80f6f486467de76c397e107e0c53498ae0f
Author: Xan Lopez <xan gnome org>
Date:   Thu Sep 24 17:30:41 2009 +0300

    ephy-window.c: workaround bug in WebKit progress notification
    
    LOAD_FINISHED is notified before progress 100% completed, which makes
    it very hard to rely on those signals to figure out if a page is still
    loading or not when syncing progress in a tab. Try to workaround this
    as best as possible.

 src/ephy-window.c |   15 +++++++++++----
 1 files changed, 11 insertions(+), 4 deletions(-)
---
diff --git a/src/ephy-window.c b/src/ephy-window.c
index 80a37fe..59a06c7 100644
--- a/src/ephy-window.c
+++ b/src/ephy-window.c
@@ -1608,6 +1608,7 @@ sync_tab_load_progress (EphyWebView *view, GParamSpec *pspec, EphyWindow *window
 	gdouble progress;
 	const char *uri;
 	gboolean loading;
+	gboolean switching_tab = pspec == NULL;
 
 	if (window->priv->closing) return;
 
@@ -1623,13 +1624,19 @@ sync_tab_load_progress (EphyWebView *view, GParamSpec *pspec, EphyWindow *window
 	   for about:blank until the load is finished, so assume NULL
 	   here means we are loading about:blank. This might not be
 	   rigt :) */
-	loading = ephy_web_view_is_loading (view);
+	/* All the weird checks for progress == 1.0 and !switching_tab
+	 * are because we receive first the LOAD_FINISHED status than
+	 * the 100% progress report, so for progress == 1.0 there's no
+	 * sane way of knowing whether we are still loading or
+	 * not. See https://bugs.webkit.org/show_bug.cgi?id=28851 */
 	uri = webkit_web_view_get_uri (WEBKIT_WEB_VIEW (view));
-	if (loading && (!uri || strcmp (uri, "about:blank") == 0))
+	if (!switching_tab && (!uri || strcmp (uri, "about:blank") == 0))
 		return;
 
 	progress = webkit_web_view_get_progress (WEBKIT_WEB_VIEW (view));
-	if (progress == 1.0 && loading)
+	loading = ephy_web_view_is_loading (view);
+
+	if (progress == 1.0 && !switching_tab)
 	{
 		window->priv->clear_progress_timeout_id =
 			g_timeout_add (500,
@@ -1640,7 +1647,7 @@ sync_tab_load_progress (EphyWebView *view, GParamSpec *pspec, EphyWindow *window
 	/* Do not set progress in the entry if the load is already
 	   finished */
 	gtk_entry_set_progress_fraction (GTK_ENTRY (window->priv->entry),
-					 loading ? progress : 0.0);
+					 loading || (progress == 1.0 && !switching_tab) ? progress : 0.0);
 }
 
 static void