From 25e9b79f5c944837192186c733feb4a3a311a051 Mon Sep 17 00:00:00 2001
From: Chris Young <chris@unsatisfactorysoftware.co.uk>
Date: Fri, 29 Oct 2010 17:40:36 +0000
Subject: Allow getting the tree's drag property.  This ensures we can see
 whether the current drag is something we might need to display an icon for.

svn path=/trunk/netsurf/; revision=10917
---
 amiga/download.c |  2 +-
 amiga/tree.c     | 20 +++++++++++++++++---
 desktop/tree.c   | 19 ++++++++++++-------
 desktop/tree.h   |  8 +++++++-
 4 files changed, 37 insertions(+), 12 deletions(-)

diff --git a/amiga/download.c b/amiga/download.c
index 15a0286d5..370fbbc42 100644
--- a/amiga/download.c
+++ b/amiga/download.c
@@ -512,7 +512,7 @@ void ami_drag_icon_show(struct Window *win, char *type)
 		ami_update_pointer(win, GUI_POINTER_DEFAULT);
 	}
 
-	if(type == "drawer") deftype = WBDRAWER;
+	if(!strcmp(type, "drawer")) deftype = WBDRAWER;
 
 	dobj = GetIconTags(NULL, ICONGETA_GetDefaultName, type,
 					    ICONGETA_GetDefaultType, deftype,
diff --git a/amiga/tree.c b/amiga/tree.c
index 7b91b78e9..c71e05d64 100755
--- a/amiga/tree.c
+++ b/amiga/tree.c
@@ -265,6 +265,19 @@ void ami_tree_scroll(struct treeview_window *twin, int sx, int sy)
 	ami_tree_draw(twin);
 }
 
+void ami_tree_drag_icon_show(struct treeview_window *twin)
+{
+	if(tree_node_is_folder(
+		tree_get_selected_node(
+			tree_get_root(twin->tree))))
+	{
+		ami_drag_icon_show(twin->win, "drawer");
+	}
+	else
+	{
+		ami_drag_icon_show(twin->win, "html");
+	}
+}
 
 void ami_tree_scroller_hook(struct Hook *hook,Object *object,struct IntuiMessage *msg) 
 {
@@ -688,8 +701,6 @@ BOOL ami_tree_event(struct treeview_window *twin)
 				{
 					int drag_x_move = 0, drag_y_move = 0;
 
-					/* TODO: Show drag icons on TREE_MOVE_DRAG start.
-					 * Until then, the below line does nothing. */
 					ami_drag_icon_move();
 
 					if(twin->win->MouseX < bbox->Left)
@@ -718,7 +729,8 @@ BOOL ami_tree_event(struct treeview_window *twin)
 											BROWSER_MOUSE_DRAG_ON;
 						if(twin->drag_x == 0) twin->drag_x = x;
 						if(twin->drag_y == 0) twin->drag_y = y;
-
+						if(tree_drag_status(twin->tree) == TREE_MOVE_DRAG)
+							ami_tree_drag_icon_show(twin);
 					}
 					else if(twin->mouse_state & BROWSER_MOUSE_PRESS_2)
 					{
@@ -728,6 +740,8 @@ BOOL ami_tree_event(struct treeview_window *twin)
 											BROWSER_MOUSE_DRAG_ON;
 						if(twin->drag_x == 0) twin->drag_x = x;
 						if(twin->drag_y == 0) twin->drag_y = y;
+						if(tree_drag_status(twin->tree) == TREE_MOVE_DRAG)
+							ami_tree_drag_icon_show(twin);
 					}
 					else
 					{
diff --git a/desktop/tree.c b/desktop/tree.c
index 3ea3dbeda..566781ef7 100644
--- a/desktop/tree.c
+++ b/desktop/tree.c
@@ -40,13 +40,6 @@
 #include "utils/utils.h"
 #include "utils/url.h"
 
-typedef enum {
-	TREE_NO_DRAG = 0,
-	TREE_SELECT_DRAG,
-	TREE_MOVE_DRAG
-} tree_drag_type;
-
-
 #define MAXIMUM_URL_LENGTH 1024
 
 #define TREE_ICON_SIZE 16
@@ -1430,6 +1423,18 @@ bool tree_is_edited(struct tree *tree)
 }
 
 
+/**
+ * Get the drag state of a tree
+ *
+ * \param tree  the tree to get the state of
+ * \return	drag type (defined in desktop/tree.h)
+ */
+tree_drag_type tree_drag_status(struct tree *tree)
+{
+	return tree->drag;
+}
+
+
 /**
  * Returns the first child of a node
  *
diff --git a/desktop/tree.h b/desktop/tree.h
index 707f3d126..30d142005 100644
--- a/desktop/tree.h
+++ b/desktop/tree.h
@@ -63,6 +63,12 @@ struct tree;
 struct node;
 struct node_element;
 
+typedef enum {
+	TREE_NO_DRAG = 0,
+	TREE_SELECT_DRAG,
+	TREE_MOVE_DRAG
+} tree_drag_type;
+
 typedef enum {
 	NODE_ELEMENT_TEXT,		/**< Text only */
 	NODE_ELEMENT_TEXT_PLUS_ICON,	/**< Text and icon */
@@ -163,7 +169,7 @@ bool tree_update_element_text(struct tree *tree, struct node_element *element, c
 const char *tree_node_element_get_text(struct node_element *element);
 struct node *tree_get_root(struct tree *tree);
 bool tree_is_edited(struct tree *tree);
-
+tree_drag_type tree_drag_status(struct tree *tree);
 
 /* functions for traversing the tree */
 struct node *tree_node_get_child(struct node *node);
-- 
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