Make dnd code smarter, so it can support more than just urls types.

2003-03-29  Marco Pesenti Gritti  <marco@it.gnome.org>

	* lib/ephy-dnd.c: (add_one_node), (ephy_dnd_drag_data_get),
	(ephy_dnd_node_list_extract_nodes):
	* lib/ephy-dnd.h:
	* lib/ephy-marshal.list:
	* lib/widgets/ephy-tree-model-sort.c: (each_node_get_data_binder),
	(ephy_tree_model_sort_multi_drag_data_get):
	* src/bookmarks/ephy-bookmarks-editor.c: (cmd_rename),
	(cmd_select_all), (ephy_bookmarks_editor_show_popup_cb),
	(keyword_node_show_popup_cb), (node_dropped_cb),
	(ephy_bookmarks_editor_construct),
	(ephy_bookmarks_editor_update_menu):
	* src/bookmarks/ephy-node-view.c: (ephy_node_view_class_init),
	(ephy_node_view_button_press_cb), (ephy_node_view_has_focus),
	(get_node_from_path), (drag_motion_cb), (drag_drop_cb),
	(drag_data_received_cb), (ephy_node_view_enable_drag_dest),
	(ephy_node_view_enable_drag_source):
	* src/bookmarks/ephy-node-view.h:
	* src/ephy-favicon-action.c: (connect_proxy):
	* src/history-dialog.c: (history_dialog_setup_view):
	* src/toolbar.c: (toolbar_get_action_name):

	Make dnd code smarter, so it can support more than
	just urls types.
	Implement drag of bookmarks on topics in bme. What a pain !

3 files changed, 211 insertions, 36 deletions

diff --git a/src/bookmarks/ephy-bookmarks-editor.c b/src/bookmarks/ephy-bookmarks-editor.c
index a10168987..7f9a983bd 100644
--- a/src/bookmarks/ephy-bookmarks-editor.c
+++ b/src/bookmarks/ephy-bookmarks-editor.c
@@ -41,6 +41,28 @@
 #include "popup-commands.h"
 #include "ephy-state.h"
 
+static GtkTargetEntry topic_drag_dest_types [] =
+{
+	{ EPHY_DND_BOOKMARK_TYPE,   0, 0 }
+};
+
+static int n_topic_drag_dest_types = G_N_ELEMENTS (topic_drag_dest_types);
+
+static GtkTargetEntry bmk_drag_types [] =
+{
+        { EPHY_DND_URI_LIST_TYPE,   0, 0 },
+        { EPHY_DND_TEXT_TYPE,       0, 1 },
+        { EPHY_DND_URL_TYPE,        0, 2 },
+	{ EPHY_DND_BOOKMARK_TYPE,   0, 3 }
+};
+static int n_bmk_drag_types = G_N_ELEMENTS (bmk_drag_types);
+
+static GtkTargetEntry topic_drag_types [] =
+{
+	{ EPHY_DND_TOPIC_TYPE,      0, 0 }
+};
+static int n_topic_drag_types = G_N_ELEMENTS (topic_drag_types);
+
 static void ephy_bookmarks_editor_class_init (EphyBookmarksEditorClass *klass);
 static void ephy_bookmarks_editor_init (EphyBookmarksEditor *editor);
 static void ephy_bookmarks_editor_finalize (GObject *object);
@@ -61,7 +83,7 @@ static void cmd_open_bookmarks_in_tabs    (EggAction *action,
 					   EphyBookmarksEditor *editor);
 static void cmd_open_bookmarks_in_browser (EggAction *action,
 					   EphyBookmarksEditor *editor);
-static void cmd_delete  		  (EggAction *action,
+static void cmd_delete			  (EggAction *action,
 				           EphyBookmarksEditor *editor);
 static void cmd_bookmark_properties	  (EggAction *action,
 					   EphyBookmarksEditor *editor);
@@ -99,12 +121,6 @@ enum
 	PROP_BOOKMARKS
 };
 
-static GtkTargetEntry topic_drag_types [] =
-{
-        { EPHY_DND_TOPIC_TYPE, 0, 0 }
-};
-static int n_topic_drag_types = G_N_ELEMENTS (topic_drag_types);
-
 static GObjectClass *parent_class = NULL;
 
 static EggActionGroupEntry ephy_bookmark_popup_entries [] = {
@@ -124,7 +140,7 @@ static EggActionGroupEntry ephy_bookmark_popup_entries [] = {
 
 	{ "Cut", N_("Cu_t"), GTK_STOCK_CUT, "<control>X",
 	  NULL, G_CALLBACK (cmd_cut), NULL },
-	
+
 	{ "Copy", N_("_Copy"), GTK_STOCK_COPY, "<control>C",
 	  NULL, G_CALLBACK (cmd_copy), NULL },
 
@@ -170,7 +186,7 @@ cmd_close (EggAction *action,
 static void
 cmd_rename (EggAction *action,
 	    EphyBookmarksEditor *editor)
-{	
+{
 	if (ephy_node_view_has_focus (editor->priv->bm_view))
 	{
 		ephy_node_view_edit (editor->priv->bm_view);
@@ -335,7 +351,7 @@ cmd_select_all (EggAction *action,
 	{
 		gtk_editable_select_region (GTK_EDITABLE (widget), 0, -1);
 	}
-	else if (ephy_node_view_has_focus (editor->priv->bm_view)) 
+	else if (ephy_node_view_has_focus (editor->priv->bm_view))
 	{
 		ephy_node_view_select_all (editor->priv->bm_view);
 	}
@@ -470,12 +486,12 @@ ephy_bookmarks_editor_show_popup_cb (GtkWidget *view,
 				     EphyBookmarksEditor *editor)
 {
 	GtkWidget *widget;
-	
+
 	widget = egg_menu_merge_get_widget (editor->priv->ui_merge,
 					    "/popups/EphyBookmarkEditorPopup");
 	gtk_menu_popup (GTK_MENU (widget), NULL, NULL, NULL, NULL, 2,
 			gtk_get_current_event_time ());
-}	
+}
 
 static void
 ephy_bookmarks_editor_node_activated_cb (GtkWidget *view,
@@ -559,7 +575,7 @@ keyword_node_show_popup_cb (GtkWidget *view, EphyBookmarksEditor *editor)
 	GtkWidget *widget;
 
 	widget = egg_menu_merge_get_widget (editor->priv->ui_merge,
-			   		   "/popups/EphyBookmarkKeywordPopup");
+					   "/popups/EphyBookmarkKeywordPopup");
 	gtk_menu_popup (GTK_MENU (widget), NULL, NULL, NULL, NULL, 2,
 			gtk_get_current_event_time ());
 }
@@ -639,6 +655,22 @@ delete_event_cb (EphyBookmarksEditor *editor)
 }
 
 static void
+node_dropped_cb (EphyNodeView *view, EphyNode *node,
+		 GList *nodes, EphyBookmarksEditor *editor)
+{
+	GList *l;
+
+	g_return_if_fail (EPHY_IS_NODE (node));
+
+	for (l = nodes; l != NULL; l = l->next)
+	{
+		EphyNode *bmk = EPHY_NODE (l->data);
+
+		ephy_bookmarks_set_keyword (editor->priv->bookmarks, node, bmk);
+	}
+}
+
+static void
 ephy_bookmarks_editor_construct (EphyBookmarksEditor *editor)
 {
 	GtkWidget *hbox, *vbox;
@@ -692,7 +724,7 @@ ephy_bookmarks_editor_construct (EphyBookmarksEditor *editor)
 	gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
 	gtk_container_add (GTK_CONTAINER (editor->priv->menu_dock), hbox);
 	gtk_widget_show (hbox);
-	
+
 	g_assert (editor->priv->bookmarks);
 
 	node = ephy_bookmarks_get_keywords (editor->priv->bookmarks);
@@ -703,6 +735,9 @@ ephy_bookmarks_editor_construct (EphyBookmarksEditor *editor)
 					   topic_drag_types,
 				           n_topic_drag_types,
 					   -1);
+	ephy_node_view_enable_drag_dest (key_view,
+					 topic_drag_dest_types,
+				         n_topic_drag_dest_types);
 	ephy_node_view_set_browse_mode (key_view);
 	ephy_node_view_add_column (key_view, _("Topics"),
 			           EPHY_TREE_MODEL_NODE_COL_KEYWORD, TRUE, TRUE);
@@ -722,7 +757,11 @@ ephy_bookmarks_editor_construct (EphyBookmarksEditor *editor)
 			  "show_popup",
 			  G_CALLBACK (keyword_node_show_popup_cb),
 			  editor);
-	
+	g_signal_connect (G_OBJECT (key_view),
+			  "node_dropped",
+			  G_CALLBACK (node_dropped_cb),
+			  editor);
+
 	vbox = gtk_vbox_new (FALSE, 6);
 	gtk_box_pack_start (GTK_BOX (hbox),
 			    vbox, TRUE, TRUE, 0);
@@ -738,7 +777,10 @@ ephy_bookmarks_editor_construct (EphyBookmarksEditor *editor)
 	/* Bookmarks View */
 	bm_view = ephy_node_view_new (node, editor->priv->bookmarks_filter);
 	ephy_node_view_set_hinted (bm_view, TRUE);
-	ephy_node_view_enable_drag_source (bm_view, NULL, 0, EPHY_NODE_BMK_PROP_LOCATION);
+	ephy_node_view_enable_drag_source (bm_view,
+					   bmk_drag_types,
+				           n_bmk_drag_types,
+					   EPHY_NODE_BMK_PROP_LOCATION);
 	ephy_node_view_add_icon_column (bm_view, EPHY_TREE_MODEL_NODE_COL_ICON);
 	ephy_node_view_add_column (bm_view, _("Title"),
 				   EPHY_TREE_MODEL_NODE_COL_BOOKMARK, TRUE, TRUE);
@@ -869,10 +911,10 @@ ephy_bookmarks_editor_update_menu (EphyBookmarksEditor *editor,
 	EggAction *action;
 	EggActionGroup *action_group;
 	GList *selection;
-	
+
 	g_return_if_fail (editor != NULL);
 	g_return_if_fail (node != NULL);
-	
+
 	priority = ephy_node_get_property_int (node, EPHY_NODE_KEYWORD_PROP_PRIORITY);
 
 	if (priority == EPHY_BOOKMARKS_KEYWORD_ALL_PRIORITY ||
@@ -897,4 +939,3 @@ ephy_bookmarks_editor_update_menu (EphyBookmarksEditor *editor,
 	action = egg_action_group_get_action (action_group, "Delete");
 	g_object_set (action, "sensitive", !delete, NULL);
 }
-	
diff --git a/src/bookmarks/ephy-node-view.c b/src/bookmarks/ephy-node-view.c
index 382daa045..62f44b7df 100644
--- a/src/bookmarks/ephy-node-view.c
+++ b/src/bookmarks/ephy-node-view.c
@@ -32,6 +32,7 @@
 #include "ephy-tree-model-sort.h"
 #include "eggtreemultidnd.h"
 #include "ephy-dnd.h"
+#include "ephy-marshal.h"
 #include "string.h"
 
 static void ephy_node_view_class_init (EphyNodeViewClass *klass);
@@ -62,12 +63,15 @@ struct EphyNodeViewPrivate
 	GtkWidget *treeview;
 
 	EphyTreeModelNodeColumn default_sort_column_id;
+
+	GtkTargetList *drag_targets;
 };
 
 enum
 {
 	NODE_ACTIVATED,
 	NODE_SELECTED,
+	NODE_DROPPED,
 	SHOW_POPUP,
 	LAST_SIGNAL
 };
@@ -158,6 +162,17 @@ ephy_node_view_class_init (EphyNodeViewClass *klass)
 			      G_TYPE_NONE,
 			      1,
 			      EPHY_TYPE_NODE);
+	ephy_node_view_signals[NODE_DROPPED] =
+		g_signal_new ("node_dropped",
+			      G_OBJECT_CLASS_TYPE (object_class),
+			      G_SIGNAL_RUN_LAST,
+			      G_STRUCT_OFFSET (EphyNodeViewClass, node_dropped),
+			      NULL, NULL,
+			      ephy_marshal_VOID__OBJECT_POINTER,
+			      G_TYPE_NONE,
+			      2,
+			      EPHY_TYPE_NODE,
+			      G_TYPE_POINTER);
 	ephy_node_view_signals[SHOW_POPUP] =
 		g_signal_new ("show_popup",
 			      G_OBJECT_CLASS_TYPE (object_class),
@@ -262,7 +277,7 @@ ephy_node_view_button_press_cb (GtkTreeView *treeview,
 {
 	GtkTreePath *path;
 	GtkTreeSelection *selection;
-	
+
 	if (event->button == 3)
 	{
 		g_signal_emit (G_OBJECT (view), ephy_node_view_signals[SHOW_POPUP], 0);
@@ -673,10 +688,10 @@ ephy_node_view_has_focus (EphyNodeView *view)
 {
 	GtkWidget *window;
 	GtkWidget *focused_widget;
-	
+
 	window = gtk_widget_get_toplevel (view->priv->treeview);
 	focused_widget = gtk_window_get_focus (GTK_WINDOW(window));
-	
+
 	if (view->priv->treeview  == focused_widget)
 	{
 		return TRUE;
@@ -742,6 +757,127 @@ ephy_node_view_select_node (EphyNodeView *view,
 	gtk_tree_path_free (path);
 }
 
+static EphyNode *
+get_node_from_path (EphyNodeView *view, GtkTreePath *path)
+{
+	EphyNode *node;
+	GtkTreeIter iter, iter2;
+
+	gtk_tree_model_get_iter (view->priv->sortmodel, &iter, path);
+	gtk_tree_model_sort_convert_iter_to_child_iter
+		(GTK_TREE_MODEL_SORT (view->priv->sortmodel), &iter2, &iter);
+	egg_tree_model_filter_convert_iter_to_child_iter
+		(EGG_TREE_MODEL_FILTER (view->priv->filtermodel), &iter, &iter2);
+	node = ephy_tree_model_node_node_from_iter (view->priv->nodemodel, &iter);
+
+	return node;
+}
+
+static gboolean
+drag_motion_cb (GtkWidget *widget,
+                GdkDragContext *context,
+                gint x,
+                gint y,
+                guint time,
+	        EphyNodeView *view)
+{
+	GtkTreePath *path = NULL;
+	GtkTreeViewDropPosition pos;
+
+	g_signal_stop_emission_by_name (widget, "drag_motion");
+
+	if (gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
+					       x, y, &path, &pos))
+	{
+		gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), path,
+						 GTK_TREE_VIEW_DROP_INTO_OR_AFTER);
+		gdk_drag_status (context, context->suggested_action, time);
+	}
+}
+
+static gboolean
+drag_drop_cb (GtkWidget *widget,
+              GdkDragContext *context,
+              gint x,
+              gint y,
+              guint time,
+	      EphyNodeView *view)
+{
+	GdkAtom target;
+
+	target = gtk_drag_dest_find_target (widget, context,
+					    view->priv->drag_targets);
+
+	if (target != GDK_NONE)
+	{
+		gtk_drag_get_data (widget, context, target, time);
+	}
+
+	g_signal_stop_emission_by_name (widget, "drag_drop");
+
+	return TRUE;
+}
+
+static gboolean
+drag_data_received_cb (GtkWidget *widget,
+                       GdkDragContext *context,
+                       gint x,
+                       gint y,
+	               GtkSelectionData *selection_data,
+                       guint info,
+                       guint time,
+	               EphyNodeView *view)
+{
+	GtkTreePath *path = NULL;
+	GtkTreeViewDropPosition pos;
+
+	g_signal_stop_emission_by_name (widget, "drag_data_received");
+
+	if (gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
+					       x, y, &path, &pos))
+	{
+		EphyNode *node;
+		GList *src_nodes;
+
+		node = get_node_from_path (view, path);
+
+		src_nodes = ephy_dnd_node_list_extract_nodes
+				(selection_data->data);
+
+		g_signal_emit (G_OBJECT (view),
+			       ephy_node_view_signals[NODE_DROPPED], 0,
+			       node, src_nodes);
+
+		g_list_free (src_nodes);
+	}
+
+	return TRUE;
+}
+
+void
+ephy_node_view_enable_drag_dest (EphyNodeView *view,
+				 GtkTargetEntry *types,
+				 int n_types)
+{
+	GtkWidget *treeview;
+
+	g_return_if_fail (view != NULL);
+
+	treeview = view->priv->treeview;
+
+	gtk_tree_view_enable_model_drag_dest (GTK_TREE_VIEW (treeview),
+					      types, n_types,
+					      GDK_ACTION_COPY);
+	view->priv->drag_targets = gtk_target_list_new (types, n_types);
+
+	g_signal_connect (treeview, "drag_data_received",
+			  G_CALLBACK (drag_data_received_cb), view);
+	g_signal_connect (treeview, "drag_drop",
+			  G_CALLBACK (drag_drop_cb), view);
+	g_signal_connect (treeview, "drag_motion",
+			  G_CALLBACK (drag_motion_cb), view);
+}
+
 void
 ephy_node_view_enable_drag_source (EphyNodeView *view,
 				   GtkTargetEntry *types,
@@ -756,17 +892,10 @@ ephy_node_view_enable_drag_source (EphyNodeView *view,
 
 	egg_tree_multi_drag_add_drag_support (GTK_TREE_VIEW (treeview));
 
-	if (types == NULL)
-	{
-		ephy_dnd_enable_model_drag_source (GTK_WIDGET (treeview));
-	}
-	else
-	{
-		gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
-							GDK_BUTTON1_MASK,
-							types, n_types,
-							GDK_ACTION_COPY);
-	}
+	gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
+						GDK_BUTTON1_MASK,
+						types, n_types,
+						GDK_ACTION_COPY);
 
 	ephy_tree_model_sort_set_drag_property (EPHY_TREE_MODEL_SORT (view->priv->sortmodel),
 						prop_id);
diff --git a/src/bookmarks/ephy-node-view.h b/src/bookmarks/ephy-node-view.h
index ee404d159..08b5757e0 100644
--- a/src/bookmarks/ephy-node-view.h
+++ b/src/bookmarks/ephy-node-view.h
@@ -49,9 +49,10 @@ typedef struct
 {
 	GtkScrolledWindowClass parent;
 
-	void (*node_activated) (EphyNodeView *view, EphyNode *node);
-	void (*node_selected)  (EphyNodeView *view, EphyNode *node);
-	void (*show_popup)     (EphyNodeView *view);
+	void (*node_activated)      (EphyNodeView *view, EphyNode *node);
+	void (*node_selected)       (EphyNodeView *view, EphyNode *node);
+	void (*node_dropped)        (EphyNodeView *view, EphyNode *node, GList *nodes);
+	void (*show_popup)          (EphyNodeView *view);
 } EphyNodeViewClass;
 
 GType         ephy_node_view_get_type                 (void);
@@ -88,6 +89,10 @@ void	      ephy_node_view_enable_drag_source       (EphyNodeView *view,
 						       int n_types,
 						       guint prop_id);
 
+void	      ephy_node_view_enable_drag_dest	      (EphyNodeView *view,
+						       GtkTargetEntry *types,
+						       int n_types);
+
 void	      ephy_node_view_set_hinted		      (EphyNodeView *view,
 						       gboolean hinted);