Bug 14806 – [gtk] [patch] Implement can_go_backward and can_go_forward in webkitgtkpage.cpp

• Component: WebKit API
• Status: RESOLVED FIXED

[Diego Escalante Urrelo]

Hacking on Epiphany's webkit backend I discovered that webkitgtkpage.h announces the webkit_gtk_page_can_go_backward and webkit_gtk_page_can_go_forward functions but they are not implemented. I just dived into the code and added the corresponding wrappers. Patch attached.

[Diego Escalante Urrelo]

Created attachment 15726 [details]
Implements the wrappers for can_go_forward|backward

Pretty simple.

[Adam Roben (:aroben)]

Comment on attachment 15726 [details]
Implements the wrappers for can_go_forward|backward

The implementation looks good. Just a few comments to bring this patch in line with <http://webkit.org/coding/coding-style.html>

 }
+gboolean webkit_gtk_page_can_go_backward (WebKitGtkPage* page)
+{

There should be an empty line before/after all functions. Please remove the space before the open parenthesis.

+    WebKitGtkPagePrivate* page_data = WEBKIT_GTK_PAGE_GET_PRIVATE(page);
+    WebKitGtkFramePrivate* frame_data = WEBKIT_GTK_FRAME_GET_PRIVATE(page_data->main_frame);

After talking with Holger, I think we're going to move towards maintaining the WebKit camelCase style for variable names within the WebKit/gtk implementation files. So these variables should be called pageData and frameData. I know it's inconsistent with the rest of the file, but that will be cleaned up later.

You also need a ChangeLog entry to go along with your patch. See <http://webkit.org/coding/contributing.html> for instructions on how to generate one.

Once these are addressed, I think we can get this landed!

[Diego Escalante Urrelo]

Created attachment 15735 [details]
Updated patch, corrects style

This should be enough!

[Adam Roben (:aroben)]

Comment on attachment 15735 [details]
Updated patch, corrects style

r=me

Thanks for the cleanup!

[Diego Escalante Urrelo]

Comment on attachment 15735 [details]
Updated patch, corrects style

>Index: gtk/Api/webkitgtkpage.cpp
>===================================================================
>--- gtk/Api/webkitgtkpage.cpp	(revision 24766)
>+++ gtk/Api/webkitgtkpage.cpp	(working copy)
>@@ -328,6 +328,20 @@ void webkit_gtk_page_go_forward(WebKitGt
>     frame_data->frame->loader()->goBackOrForward(1);
> }
> 
>+gboolean webkit_gtk_page_can_go_backward(WebKitGtkPage* page)
>+{
>+    WebKitGtkPagePrivate* pageData = WEBKIT_GTK_PAGE_GET_PRIVATE(page);
>+    WebKitGtkFramePrivate* frameData = WEBKIT_GTK_FRAME_GET_PRIVATE(page_data->main_frame);
Oops, should be pageData.

>+    return frame_data->frame->loader()->canGoBackOrForward(-1);
Oops, should be frameData

Same in the other function.