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// 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/gtk/bookmark_tree_model.h"
#include <gtk/gtk.h>
#include "base/string_util.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/gtk/bookmark_utils_gtk.h"
#include "chrome/browser/gtk/gtk_theme_provider.h"
namespace {
const char* kCellRendererTextKey = "__CELL_RENDERER_TEXT__";
void AddSingleNodeToTreeStore(GtkTreeStore* store, const BookmarkNode* node,
GtkTreeIter *iter, GtkTreeIter* parent) {
gtk_tree_store_append(store, iter, parent);
// It would be easy to show a different icon when the folder is open (as they
// do on Windows, for example), using pixbuf-expander-closed and
// pixbuf-expander-open. Unfortunately there is no GTK_STOCK_OPEN_DIRECTORY
// (and indeed, Nautilus does not render an expanded directory any
// differently).
gtk_tree_store_set(store, iter,
bookmark_utils::FOLDER_ICON, GtkThemeProvider::GetFolderIcon(true),
bookmark_utils::FOLDER_NAME, WideToUTF8(node->GetTitle()).c_str(),
bookmark_utils::ITEM_ID, node->id(),
// We don't want to use node->is_folder() because that would let the
// user edit "Bookmarks Bar" and "Other Bookmarks".
bookmark_utils::IS_EDITABLE, node->type() == BookmarkNode::FOLDER,
-1);
}
// Helper function for CommitTreeStoreDifferencesBetween() which recursively
// merges changes back from a GtkTreeStore into a tree of BookmarkNodes. This
// function only works on non-root nodes; our caller handles that special case.
void RecursiveResolve(BookmarkModel* bb_model, const BookmarkNode* bb_node,
GtkTreeModel* tree_model, GtkTreeIter* parent_iter,
GtkTreePath* selected_path,
const BookmarkNode** selected_node) {
GtkTreePath* current_path = gtk_tree_model_get_path(tree_model, parent_iter);
if (gtk_tree_path_compare(current_path, selected_path) == 0)
*selected_node = bb_node;
gtk_tree_path_free(current_path);
GtkTreeIter child_iter;
if (gtk_tree_model_iter_children(tree_model, &child_iter, parent_iter)) {
do {
int64 id = bookmark_utils::GetIdFromTreeIter(tree_model, &child_iter);
string16 title =
bookmark_utils::GetTitleFromTreeIter(tree_model, &child_iter);
const BookmarkNode* child_bb_node = NULL;
if (id == 0) {
child_bb_node = bb_model->AddGroup(bb_node, bb_node->GetChildCount(),
UTF16ToWide(title));
} else {
// Existing node, reset the title (BBModel ignores changes if the title
// is the same).
for (int j = 0; j < bb_node->GetChildCount(); ++j) {
const BookmarkNode* node = bb_node->GetChild(j);
if (node->is_folder() && node->id() == id) {
child_bb_node = node;
break;
}
}
DCHECK(child_bb_node);
bb_model->SetTitle(child_bb_node, UTF16ToWide(title));
}
RecursiveResolve(bb_model, child_bb_node,
tree_model, &child_iter,
selected_path, selected_node);
} while (gtk_tree_model_iter_next(tree_model, &child_iter));
}
}
// Update the folder name in the GtkTreeStore.
void OnFolderNameEdited(GtkCellRendererText* render,
gchar* path, gchar* new_folder_name, GtkTreeStore* tree_store) {
GtkTreeIter folder_iter;
GtkTreePath* tree_path = gtk_tree_path_new_from_string(path);
gboolean rv = gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store),
&folder_iter, tree_path);
DCHECK(rv);
gtk_tree_store_set(tree_store, &folder_iter,
bookmark_utils::FOLDER_NAME, new_folder_name,
-1);
gtk_tree_path_free(tree_path);
}
} // namespace
namespace bookmark_utils {
GtkTreeStore* MakeFolderTreeStore() {
return gtk_tree_store_new(FOLDER_STORE_NUM_COLUMNS, GDK_TYPE_PIXBUF,
G_TYPE_STRING, G_TYPE_INT64, G_TYPE_BOOLEAN);
}
void AddToTreeStore(BookmarkModel* model, int64 selected_id,
GtkTreeStore* store, GtkTreeIter* selected_iter) {
const BookmarkNode* root_node = model->root_node();
for (int i = 0; i < root_node->GetChildCount(); ++i) {
AddToTreeStoreAt(root_node->GetChild(i), selected_id, store, selected_iter,
NULL);
}
}
GtkWidget* MakeTreeViewForStore(GtkTreeStore* store) {
GtkTreeViewColumn* column = gtk_tree_view_column_new();
GtkCellRenderer* image_renderer = gtk_cell_renderer_pixbuf_new();
gtk_tree_view_column_pack_start(column, image_renderer, FALSE);
gtk_tree_view_column_add_attribute(column, image_renderer,
"pixbuf", FOLDER_ICON);
GtkCellRenderer* text_renderer = gtk_cell_renderer_text_new();
g_object_set(text_renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
g_signal_connect(text_renderer, "edited", G_CALLBACK(OnFolderNameEdited),
store);
gtk_tree_view_column_pack_start(column, text_renderer, TRUE);
gtk_tree_view_column_set_attributes(column, text_renderer,
"text", FOLDER_NAME,
"editable", IS_EDITABLE,
NULL);
GtkWidget* tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
// Let |tree_view| own the store.
g_object_unref(store);
gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree_view), FALSE);
gtk_tree_view_append_column(GTK_TREE_VIEW(tree_view), column);
g_object_set_data(G_OBJECT(tree_view), kCellRendererTextKey, text_renderer);
return tree_view;
}
GtkCellRenderer* GetCellRendererText(GtkTreeView* tree_view) {
return static_cast<GtkCellRenderer*>(
g_object_get_data(G_OBJECT(tree_view), kCellRendererTextKey));
}
void AddToTreeStoreAt(const BookmarkNode* node, int64 selected_id,
GtkTreeStore* store, GtkTreeIter* selected_iter,
GtkTreeIter* parent) {
if (!node->is_folder())
return;
GtkTreeIter iter;
AddSingleNodeToTreeStore(store, node, &iter, parent);
if (selected_iter && node->id() == selected_id) {
// Save the iterator. Since we're using a GtkTreeStore, we're
// guaranteed that the iterator will remain valid as long as the above
// appended item exists.
*selected_iter = iter;
}
for (int i = 0; i < node->GetChildCount(); ++i) {
AddToTreeStoreAt(node->GetChild(i), selected_id, store, selected_iter,
&iter);
}
}
const BookmarkNode* CommitTreeStoreDifferencesBetween(
BookmarkModel* bb_model, GtkTreeStore* tree_store, GtkTreeIter* selected) {
const BookmarkNode* node_to_return = NULL;
GtkTreeModel* tree_model = GTK_TREE_MODEL(tree_store);
GtkTreePath* selected_path = gtk_tree_model_get_path(tree_model, selected);
GtkTreeIter tree_root;
if (!gtk_tree_model_get_iter_first(tree_model, &tree_root))
NOTREACHED() << "Impossible missing bookmarks case";
// The top level of this tree is weird and needs to be special cased. The
// BookmarksNode tree is rooted on a root node while the GtkTreeStore has a
// set of top level nodes that are the root BookmarksNode's children. These
// items in the top level are not editable and therefore don't need the extra
// complexity of trying to modify their title.
const BookmarkNode* root_node = bb_model->root_node();
do {
DCHECK(GetIdFromTreeIter(tree_model, &tree_root) != 0)
<< "It should be impossible to add another toplevel node";
int64 id = GetIdFromTreeIter(tree_model, &tree_root);
const BookmarkNode* child_node = NULL;
for (int j = 0; j < root_node->GetChildCount(); ++j) {
const BookmarkNode* node = root_node->GetChild(j);
if (node->is_folder() && node->id() == id) {
child_node = node;
break;
}
}
DCHECK(child_node);
GtkTreeIter child_iter = tree_root;
RecursiveResolve(bb_model, child_node, tree_model, &child_iter,
selected_path, &node_to_return);
} while (gtk_tree_model_iter_next(tree_model, &tree_root));
gtk_tree_path_free(selected_path);
return node_to_return;
}
int64 GetIdFromTreeIter(GtkTreeModel* model, GtkTreeIter* iter) {
GValue value = { 0, };
int64 ret_val = -1;
gtk_tree_model_get_value(model, iter, ITEM_ID, &value);
if (G_VALUE_HOLDS_INT64(&value))
ret_val = g_value_get_int64(&value);
else
NOTREACHED() << "Impossible type mismatch";
return ret_val;
}
string16 GetTitleFromTreeIter(GtkTreeModel* model, GtkTreeIter* iter) {
GValue value = { 0, };
string16 ret_val;
gtk_tree_model_get_value(model, iter, FOLDER_NAME, &value);
if (G_VALUE_HOLDS_STRING(&value)) {
const gchar* utf8str = g_value_get_string(&value);
ret_val = UTF8ToUTF16(utf8str);
g_value_unset(&value);
} else {
NOTREACHED() << "Impossible type mismatch";
}
return ret_val;
}
} // namespace bookmark_utils
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