156462 2016-04-11 04:10:09 -0700 [GTK] Rework scrollbars theming code for GTK+ 3.20 2016-04-12 05:43:05 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Local Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=156333 Gtk P2 Normal --- 1 cgarcia webkit-unassigned bugs-noreply oldest_to_newest 1182662 0 cgarcia 2016-04-11 04:10:09 -0700 For the same reasons of bug #156333, now that we have RenderThemeGadget we can use that to render the scrollbars too. 1182668 1 276138 cgarcia 2016-04-11 04:51:53 -0700 Created attachment 276138 Patch 1182945 2 276138 mcatanzaro 2016-04-11 20:31:28 -0700 Comment on attachment 276138 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=276138&action=review > Source/WebCore/ChangeLog:9 > + needed for scrollbars, this patch uses the RenderthemGadget classes introduced in r199292 to render the native Renderthem! > Source/WebCore/platform/gtk/RenderThemeGadget.cpp:70 > + // Scrollbars need to use its GType to be able to get non-CSS style properties. Wow, I thought the type was ignored.... > Source/WebCore/platform/gtk/ScrollbarThemeGtk.cpp:86 > +static GRefPtr<GtkStyleContext> createChildStyleContext(GtkStyleContext* parent, const char* name) I'd use className instead of name to make it more clear what that parameter is for. > Source/WebCore/platform/gtk/ScrollbarThemeGtk.cpp:157 > + FALLTHROUGH; Didn't know we had this. Cool. > Source/WebCore/platform/gtk/ScrollbarThemeGtk.cpp:309 > + // painting the thumb can be skipped. We don't have to be exact here. I would name the method something like ScrollbarThemeGtk::probablyHasThumb. > Source/WebCore/platform/gtk/ScrollbarThemeGtk.h:65 > + bool m_hasForwardButtonStartPart : 1; I don't pretend to know if using a bitfield here would improve performance because due to better cache locality, or hurt performance due to the nature of bitfields (seems more likely to me?), but it only saves three bytes, and it's not like this structure is going to be allocated frequently (should be just once, right?) so I would personally use normal bools here. 1183036 3 276138 cgarcia 2016-04-12 05:13:51 -0700 Comment on attachment 276138 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=276138&action=review >> Source/WebCore/platform/gtk/RenderThemeGadget.cpp:70 >> + // Scrollbars need to use its GType to be able to get non-CSS style properties. > > Wow, I thought the type was ignored.... Me too, but otherwise gtk_style_context_get_style() fails when trying to get has-*-steppers properties. >> Source/WebCore/platform/gtk/ScrollbarThemeGtk.cpp:309 >> + // painting the thumb can be skipped. We don't have to be exact here. > > I would name the method something like ScrollbarThemeGtk::probablyHasThumb. This is inherited, it's pure virtual of ScrollbarThemeComposite >> Source/WebCore/platform/gtk/ScrollbarThemeGtk.h:65 >> + bool m_hasForwardButtonStartPart : 1; > > I don't pretend to know if using a bitfield here would improve performance because due to better cache locality, or hurt performance due to the nature of bitfields (seems more likely to me?), but it only saves three bytes, and it's not like this structure is going to be allocated frequently (should be just once, right?) so I would personally use normal bools here. This is a singleton. We didn't use bool nor bitfield before because we used the member addresses directly in gtk_style_context_get_style(), but now that with newer GTK+ we have a different approach and we have to set the values individually, I thought it wouldn't hurt to use bool : 1 for these values, but I agree this doesn't make a huge difference. 1183038 4 cgarcia 2016-04-12 05:43:05 -0700 Committed r199344: <http://trac.webkit.org/changeset/199344> 276138 2016-04-11 04:51:53 -0700 2016-04-11 20:31:28 -0700 Patch wcore-scrollbars-gtk320.diff text/plain 72954 cgarcia ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJDb3JlL0No YW5nZUxvZwppbmRleCAyMjQ1M2JmLi41ZDMzMmZiIDEwMDY0NAotLS0gYS9Tb3VyY2UvV2ViQ29y ZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsNDkg QEAKKzIwMTYtMDQtMTEgIENhcmxvcyBHYXJjaWEgQ2FtcG9zICA8Y2dhcmNpYUBpZ2FsaWEuY29t PgorCisgICAgICAgIFtHVEtdIFJld29yayBzY3JvbGxiYXJzIHRoZW1pbmcgY29kZSBmb3IgR1RL 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