Final removal of the bad dependency of chrome/common on chrome/browser

Also convert app/gtk_dnd_util.h from a class to a namespace for consistency
with added app/gtk_util.h.

TEST=none
BUG=none
Review URL: http://codereview.chromium.org/669268

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41177 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 66 insertions, 0 deletions

diff --git a/app/gtk_util.cc b/app/gtk_util.cc
new file mode 100644
index 0000000..b2aab1a
--- /dev/null
+++ b/app/gtk_util.cc
@@ -0,0 +1,66 @@
+// Copyright (c) 2010 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 "app/gtk_util.h"
+
+#include <gtk/gtk.h>
+
+#include "app/l10n_util.h"
+#include "base/linux_util.h"
+#include "base/logging.h"
+#include "base/string_util.h"
+
+namespace gtk_util {
+
+void GetWidgetSizeFromResources(
+    GtkWidget* widget, int width_chars, int height_lines,
+    int* width, int* height) {
+  DCHECK(GTK_WIDGET_REALIZED(widget))
+      << " widget must be realized to compute font metrics correctly";
+
+  double chars = 0;
+  if (width)
+    StringToDouble(l10n_util::GetStringUTF8(width_chars), &chars);
+
+  double lines = 0;
+  if (height)
+    StringToDouble(l10n_util::GetStringUTF8(height_lines), &lines);
+
+  GetWidgetSizeFromCharacters(widget, chars, lines, width, height);
+}
+
+void GetWidgetSizeFromCharacters(
+    GtkWidget* widget, double width_chars, double height_lines,
+    int* width, int* height) {
+  DCHECK(GTK_WIDGET_REALIZED(widget))
+      << " widget must be realized to compute font metrics correctly";
+  PangoContext* context = gtk_widget_create_pango_context(widget);
+  PangoFontMetrics* metrics = pango_context_get_metrics(context,
+      widget->style->font_desc, pango_context_get_language(context));
+  if (width) {
+    *width = static_cast<int>(
+        pango_font_metrics_get_approximate_char_width(metrics) *
+        width_chars / PANGO_SCALE);
+  }
+  if (height) {
+    *height = static_cast<int>(
+        (pango_font_metrics_get_ascent(metrics) +
+        pango_font_metrics_get_descent(metrics)) *
+        height_lines / PANGO_SCALE);
+  }
+  pango_font_metrics_unref(metrics);
+  g_object_unref(context);
+}
+
+void ApplyMessageDialogQuirks(GtkWidget* dialog) {
+  if (gtk_window_get_modal(GTK_WINDOW(dialog))) {
+    // Work around a KDE 3 window manager bug.
+    scoped_ptr<base::EnvironmentVariableGetter> env(
+        base::EnvironmentVariableGetter::Create());
+    if (base::DESKTOP_ENVIRONMENT_KDE3 == GetDesktopEnvironment(env.get()))
+      gtk_window_set_skip_taskbar_hint(GTK_WINDOW(dialog), FALSE);
+  }
+}
+
+}  // namespace gtk_util