More web contents dragging.

chrome/browser/gtk/gtk_dnd_util.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 "dnd_registry.h"
+#include "chrome/browser/gtk/gtk_dnd_util.h"
 
-namespace dnd {
+#include "base/logging.h"
 
-GtkTargetList* GetTargetListFromCodeMask(int code_mask) {
+// static
+GdkAtom GtkDndUtil::GetAtomForTarget(int target) {
+  switch (target) {
+    case X_CHROME_TAB:
+      static GdkAtom tab_atom = gdk_atom_intern(
+          const_cast<char*>("application/x-chrome-tab"), false);
+      return tab_atom;
+
+    case X_CHROME_TEXT_HTML:
+      static GdkAtom html_atom = gdk_atom_intern(
+          const_cast<char*>("text/html"), false);
+      return html_atom;
+
+    case X_CHROME_BOOKMARK_ITEM:
+      static GdkAtom bookmark_atom = gdk_atom_intern(
+          const_cast<char*>("application/x-chrome-bookmark-item"), false);
+      return bookmark_atom;
+
+    case X_CHROME_TEXT_PLAIN:
+    case X_CHROME_TEXT_URI_LIST:
+      return NULL;
+
+    default:
+      NOTREACHED();
+  }
+
+  return NULL;
+}
+
+// static
+GtkTargetList* GtkDndUtil::GetTargetListFromCodeMask(int code_mask) {
   GtkTargetList* targets = gtk_target_list_new(NULL, 0);
 
   if (code_mask & X_CHROME_TAB) {
-    GdkAtom tab_atom = gdk_atom_intern(
-        const_cast<char*>("application/x-chrome-tab"), false);
-    gtk_target_list_add(targets, tab_atom, GTK_TARGET_SAME_APP,
-                        X_CHROME_TAB);
+    gtk_target_list_add(targets, GetAtomForTarget(X_CHROME_TAB),
+                        GTK_TARGET_SAME_APP, X_CHROME_TAB);
   }
 
   if (code_mask & X_CHROME_TEXT_PLAIN)
     gtk_target_list_add_text_targets(targets, X_CHROME_TEXT_PLAIN);
 
   if (code_mask & X_CHROME_TEXT_URI_LIST)
     gtk_target_list_add_uri_targets(targets, X_CHROME_TEXT_URI_LIST);
 
+  if (code_mask & X_CHROME_TEXT_HTML) {
+    gtk_target_list_add(targets, GetAtomForTarget(X_CHROME_TEXT_PLAIN),
+                        0, X_CHROME_TEXT_HTML);
+  }
+
   if (code_mask & X_CHROME_BOOKMARK_ITEM) {
-    GdkAtom bookmark_atom = gdk_atom_intern(
-        const_cast<char*>("application/x-chrome-bookmark-item"), false);
-    gtk_target_list_add(targets, bookmark_atom, GTK_TARGET_SAME_APP,
-                        X_CHROME_BOOKMARK_ITEM);
+    gtk_target_list_add(targets, GetAtomForTarget(X_CHROME_BOOKMARK_ITEM),
+                        GTK_TARGET_SAME_APP, X_CHROME_BOOKMARK_ITEM);
   }
 
   return targets;
 }
 
-void SetDestTargetListFromCodeMask(GtkWidget* dest, int code_mask) {
+// static
+void GtkDndUtil::SetDestTargetListFromCodeMask(GtkWidget* dest,
+                                               int code_mask) {
   GtkTargetList* targets = GetTargetListFromCodeMask(code_mask);
   gtk_drag_dest_set_target_list(dest, targets);
   gtk_target_list_unref(targets);
 }
 
-void SetSourceTargetListFromCodeMask(GtkWidget* source, int code_mask) {
+// static
+void GtkDndUtil::SetSourceTargetListFromCodeMask(GtkWidget* source,
+                                                 int code_mask) {
   GtkTargetList* targets = GetTargetListFromCodeMask(code_mask);
   gtk_drag_source_set_target_list(source, targets);
   gtk_target_list_unref(targets);
 }
-
-}  // namespace dnd