Chaos geolocation demo, non-WebKit part.

chrome/browser/gtk/gtk_skinny_button.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/gtk/gtk_skinny_button.h"
+
+#include <stdlib.h>
+
+#include "base/logging.h"
+
+namespace {
+
+// Set the GTK style on our custom link button. We don't want any border around
+// the link text.
+void SetLinkButtonStyle() {
+  static bool style_was_set = false;
+
+  if (style_was_set)
+    return;
+  style_was_set = true;
+
+  gtk_rc_parse_string(
+      "style \"skinny-button\" {"
+      "  GtkButton::inner-border = {5, 5, 0, 0}"
+      "  GtkButton::child-displacement-x = 0"
+      "  GtkButton::child-displacement-y = 0"
+      "  xthickness = 0"
+      "  ythickness = 0"
+      "}"
+      "widget \"*skinny-button\" style \"skinny-button\"");
+}
+
+}  // namespace
+
+G_BEGIN_DECLS
+G_DEFINE_TYPE(GtkSkinnyButton, gtk_skinny_button, GTK_TYPE_BUTTON)
+
+static void gtk_skinny_button_destroy(GtkObject* object) {
+  GtkSkinnyButton* button = GTK_SKINNY_BUTTON(object);
+
+  free(button->click_button_event);
+  button->click_button_event = NULL;
+
+  GTK_OBJECT_CLASS(gtk_skinny_button_parent_class)->destroy(object);
+}
+
+static void gtk_skinny_button_class_init(
+    GtkSkinnyButtonClass* link_button_class) {
+  GtkObjectClass* object_class =
+      reinterpret_cast<GtkObjectClass*>(link_button_class);
+
+  object_class->destroy = &gtk_skinny_button_destroy;
+}
+
+static void gtk_skinny_button_init(GtkSkinnyButton* button) {
+  SetLinkButtonStyle();
+
+  gtk_widget_set_name(GTK_WIDGET(button), "skinny-button");
+}
+
+GtkWidget* gtk_skinny_button_new_with_label(const char* text) {
+  GtkWidget* lb = GTK_WIDGET(g_object_new(GTK_TYPE_SKINNY_BUTTON, NULL));
+  gtk_button_set_label(GTK_BUTTON(lb), text);
+  return lb;
+}
+
+const GdkEventButton* gtk_skinny_button_get_event_for_click(
+    GtkSkinnyButton* button) {
+  return button->click_button_event;
+}
+
+G_END_DECLS