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authorMichael Drake <tlsa@netsurf-browser.org>2013-09-03 11:06:07 +0100
committerMichael Drake <tlsa@netsurf-browser.org>2013-09-03 11:06:07 +0100
commitb56d684a312a39f6cfb93b3ef60d0df2feb9a017 (patch)
treecdb1d0980c007159dff015f0a0fe6c30331efce7 /desktop/treeview.c
parent472108576e2366a5db606c450928b4bc1d1af63b (diff)
downloadnetsurf-b56d684a312a39f6cfb93b3ef60d0df2feb9a017.tar.gz
netsurf-b56d684a312a39f6cfb93b3ef60d0df2feb9a017.tar.bz2
Add a pair of recursive expand/contract functions.
Diffstat (limited to 'desktop/treeview.c')
-rw-r--r--desktop/treeview.c80
1 files changed, 78 insertions, 2 deletions
diff --git a/desktop/treeview.c b/desktop/treeview.c
index dd4efcd3c..58e199b20 100644
--- a/desktop/treeview.c
+++ b/desktop/treeview.c
@@ -1338,8 +1338,7 @@ nserror treeview_destroy(treeview *tree)
/* Exported interface, documented in treeview.h */
-nserror treeview_node_expand(treeview *tree,
- treeview_node *node)
+nserror treeview_node_expand(treeview *tree, treeview_node *node)
{
treeview_node *child;
struct treeview_node_entry *e;
@@ -1423,6 +1422,7 @@ nserror treeview_node_expand(treeview *tree,
}
+
/** Treewalk node callback for handling node contraction. */
static nserror treeview_node_contract_cb(treeview_node *n, void *ctx,
bool *skip_children, bool *end)
@@ -1483,6 +1483,82 @@ nserror treeview_node_contract(treeview *tree, treeview_node *node)
/* Exported interface, documented in treeview.h */
+nserror treeview_contract(treeview *tree, bool all)
+{
+ bool selected;
+ treeview_node *n;
+
+ assert(tree != NULL);
+ assert(tree->root != NULL);
+
+ for (n = tree->root->children; n != NULL; n = n->next_sib) {
+ if ((n->flags & TREE_NODE_EXPANDED) == false) {
+ continue;
+ }
+
+ if (n->type == TREE_NODE_FOLDER || all) {
+ selected = n->flags & TREE_NODE_SELECTED;
+
+ /* Contract children. */
+ treeview_walk_internal(n, false, NULL,
+ treeview_node_contract_cb, NULL);
+
+ /* Contract node */
+ treeview_node_contract_cb(n, NULL, false, false);
+
+ if (selected)
+ n->flags |= TREE_NODE_SELECTED;
+ }
+ }
+
+ /* Inform front end of change in dimensions */
+ tree->cw_t->update_size(tree->cw_h, -1, tree->root->height);
+
+ return NSERROR_OK;
+}
+
+
+struct treeview_contract_data {
+ treeview *tree;
+ bool only_folders;
+};
+/** Treewalk node callback for handling recursive node expansion. */
+static nserror treeview_expand_cb(treeview_node *n, void *ctx,
+ bool *skip_children, bool *end)
+{
+ struct treeview_contract_data *data = ctx;
+ nserror err;
+
+ assert(n != NULL);
+ assert(n->type != TREE_NODE_ROOT);
+
+ if (n->flags & TREE_NODE_EXPANDED ||
+ (data->only_folders && n->type != TREE_NODE_FOLDER)) {
+ /* Nothing to do. */
+ return NSERROR_OK;
+ }
+
+ err = treeview_node_expand(data->tree, n);
+
+ return err;
+}
+/* Exported interface, documented in treeview.h */
+nserror treeview_expand(treeview *tree, bool only_folders)
+{
+ struct treeview_contract_data data;
+
+ assert(tree != NULL);
+ assert(tree->root != NULL);
+
+ data.tree = tree;
+ data.only_folders = only_folders;
+
+ return treeview_walk_internal(tree->root, true, NULL,
+ treeview_expand_cb, &data);
+}
+
+
+/* Exported interface, documented in treeview.h */
void treeview_redraw(treeview *tree, int x, int y, struct rect *clip,
const struct redraw_context *ctx)
{