More web contents dragging.

chrome/browser/tab_contents/tab_contents_view_gtk.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/tab_contents/tab_contents_view_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
+#include "base/mime_util.h"
 #include "base/gfx/point.h"
 #include "base/gfx/rect.h"
 #include "base/gfx/size.h"
 #include "base/string_util.h"
 #include "build/build_config.h"
 #include "chrome/browser/download/download_shelf.h"
 #include "chrome/browser/gtk/blocked_popup_container_view_gtk.h"
 #include "chrome/browser/gtk/browser_window_gtk.h"
 #include "chrome/browser/gtk/constrained_window_gtk.h"
-#include "chrome/browser/gtk/dnd_registry.h"
+#include "chrome/browser/gtk/gtk_dnd_util.h"
 #include "chrome/browser/gtk/gtk_floating_container.h"
 #include "chrome/browser/gtk/sad_tab_gtk.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/render_view_host_factory.h"
 #include "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
 #include "chrome/browser/tab_contents/interstitial_page.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_gtk.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tab_contents/tab_contents_delegate.h"
 #include "chrome/common/gtk_util.h"
@@ skipping 327 matching lines @@
 // Render view DnD -------------------------------------------------------------
 
 void TabContentsViewGtk::DragEnded() {
   if (tab_contents()->render_view_host())
     tab_contents()->render_view_host()->DragSourceSystemDragEnded();
 }
 
 void TabContentsViewGtk::StartDragging(const WebDropData& drop_data) {
   DCHECK(GetContentNativeView());
 
-  if (drop_data.plain_text.empty()) {
-    NOTIMPLEMENTED() << "Only plain text drags supported, sorry!";
+  int targets_mask = 0;
+
+  if (!drop_data.plain_text.empty())
+    targets_mask |= GtkDndUtil::X_CHROME_TEXT_PLAIN;
+  if (drop_data.url.is_valid())
+    targets_mask |= GtkDndUtil::X_CHROME_TEXT_URI_LIST;
+  if (!drop_data.text_html.empty())
+    targets_mask |= GtkDndUtil::X_CHROME_TEXT_HTML;
+  if (!drop_data.file_contents.empty())
+    targets_mask |= GtkDndUtil::X_CHROME_WEBDROP_FILE_CONTENTS;
+
+  if (targets_mask == 0) {
+    NOTIMPLEMENTED();
     DragEnded();
     return;
   }
 
   drop_data_.reset(new WebDropData(drop_data));
 
-  GtkTargetList* list = gtk_target_list_new(NULL, 0);
-  gtk_target_list_add_text_targets(list, dnd::X_CHROME_TEXT_PLAIN);
+  GtkTargetList* list = GtkDndUtil::GetTargetListFromCodeMask(targets_mask);
+  if (targets_mask & GtkDndUtil::X_CHROME_WEBDROP_FILE_CONTENTS) {
+    drag_file_mime_type_ = gdk_atom_intern(
+        mime_util::GetDataMimeType(drop_data.file_contents).c_str(), FALSE);
+    gtk_target_list_add(list, drag_file_mime_type_,
+                        0, GtkDndUtil::X_CHROME_WEBDROP_FILE_CONTENTS);
+  }
+
   gtk_drag_begin(GetContentNativeView(), list, GDK_ACTION_COPY, 1, NULL);
   // The drag adds a ref; let it own the list.
   gtk_target_list_unref(list);
 }
 
 // static
 void TabContentsViewGtk::OnDragDataGet(
     GtkWidget* drag_widget,
     GdkDragContext* context, GtkSelectionData* selection_data,
     guint target_type, guint time, TabContentsViewGtk* view) {
-  std::string utf8_text(UTF16ToUTF8(view->drop_data_->plain_text));
-  gtk_selection_data_set_text(selection_data, utf8_text.c_str(),
-                              utf8_text.length());
+  const int bits_per_byte = 8;
+  // We must make this initialization here or gcc complains about jumping past
+  // it in the switch statement.
+  std::string utf8_text;
+
+  switch (target_type) {
+    case GtkDndUtil::X_CHROME_TEXT_PLAIN:
+      utf8_text = UTF16ToUTF8(view->drop_data_->plain_text);
+      gtk_selection_data_set_text(selection_data, utf8_text.c_str(),
+                                  utf8_text.length());
+      break;
+    case GtkDndUtil::X_CHROME_TEXT_URI_LIST:
+      gchar* uri_array[2];
+      uri_array[0] = strdup(view->drop_data_->url.spec().c_str());
+      uri_array[1] = NULL;
+      gtk_selection_data_set_uris(selection_data, uri_array);
+      free(uri_array[0]);
+      break;
+    case GtkDndUtil::X_CHROME_TEXT_HTML:
+      // TODO(estade): change relative links to be absolute using
+      // |html_base_url|.
+      utf8_text = UTF16ToUTF8(view->drop_data_->text_html);
+      gtk_selection_data_set(selection_data,
+          GtkDndUtil::GetAtomForTarget(GtkDndUtil::X_CHROME_TEXT_HTML),
+          bits_per_byte,
+          reinterpret_cast<const guchar*>(utf8_text.c_str()),
+          utf8_text.length());
+      break;
+
+    case GtkDndUtil::X_CHROME_WEBDROP_FILE_CONTENTS:
+      gtk_selection_data_set(selection_data,
+          view->drag_file_mime_type_, bits_per_byte,
+          reinterpret_cast<const guchar*>(
+              view->drop_data_->file_contents.data()),
+          view->drop_data_->file_contents.length());
+      break;
+
+    default:
+      NOTREACHED();
+  }
 }
 
 // static
 void TabContentsViewGtk::OnDragEnd(GtkWidget* widget,
      GdkDragContext* drag_context, TabContentsViewGtk* view) {
   view->DragEnded();
   view->drop_data_.reset();
 }
 
 // -----------------------------------------------------------------------------
@@ skipping 74 matching lines @@
     gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                      widget, "x", &value);
 
     int child_y = std::max(half_view_height - (requisition.height / 2), 0);
     g_value_set_int(&value, child_y);
     gtk_container_child_set_property(GTK_CONTAINER(floating_container),
                                      widget, "y", &value);
     g_value_unset(&value);
   }
 }