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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/gtk/bookmark_tree_model.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 | |
| 9 #include "base/string_util.h" | |
| 10 #include "base/utf_string_conversions.h" | |
| 11 #include "chrome/browser/bookmarks/bookmark_model.h" | |
| 12 #include "chrome/browser/gtk/bookmark_utils_gtk.h" | |
| 13 #include "chrome/browser/gtk/gtk_theme_provider.h" | |
| 14 | |
| 15 namespace { | |
| 16 | |
| 17 const char* kCellRendererTextKey = "__CELL_RENDERER_TEXT__"; | |
| 18 | |
| 19 void AddSingleNodeToTreeStore(GtkTreeStore* store, const BookmarkNode* node, | |
| 20 GtkTreeIter *iter, GtkTreeIter* parent) { | |
| 21 gtk_tree_store_append(store, iter, parent); | |
| 22 // It would be easy to show a different icon when the folder is open (as they | |
| 23 // do on Windows, for example), using pixbuf-expander-closed and | |
| 24 // pixbuf-expander-open. Unfortunately there is no GTK_STOCK_OPEN_DIRECTORY | |
| 25 // (and indeed, Nautilus does not render an expanded directory any | |
| 26 // differently). | |
| 27 gtk_tree_store_set(store, iter, | |
| 28 bookmark_utils::FOLDER_ICON, GtkThemeProvider::GetFolderIcon(true), | |
| 29 bookmark_utils::FOLDER_NAME, | |
| 30 UTF16ToUTF8(node->GetTitle()).c_str(), | |
| 31 bookmark_utils::ITEM_ID, node->id(), | |
| 32 // We don't want to use node->is_folder() because that would let the | |
| 33 // user edit "Bookmarks Bar" and "Other Bookmarks". | |
| 34 bookmark_utils::IS_EDITABLE, node->type() == BookmarkNode::FOLDER, | |
| 35 -1); | |
| 36 } | |
| 37 | |
| 38 // Helper function for CommitTreeStoreDifferencesBetween() which recursively | |
| 39 // merges changes back from a GtkTreeStore into a tree of BookmarkNodes. This | |
| 40 // function only works on non-root nodes; our caller handles that special case. | |
| 41 void RecursiveResolve(BookmarkModel* bb_model, const BookmarkNode* bb_node, | |
| 42 GtkTreeModel* tree_model, GtkTreeIter* parent_iter, | |
| 43 GtkTreePath* selected_path, | |
| 44 const BookmarkNode** selected_node) { | |
| 45 GtkTreePath* current_path = gtk_tree_model_get_path(tree_model, parent_iter); | |
| 46 if (gtk_tree_path_compare(current_path, selected_path) == 0) | |
| 47 *selected_node = bb_node; | |
| 48 gtk_tree_path_free(current_path); | |
| 49 | |
| 50 GtkTreeIter child_iter; | |
| 51 if (gtk_tree_model_iter_children(tree_model, &child_iter, parent_iter)) { | |
| 52 do { | |
| 53 int64 id = bookmark_utils::GetIdFromTreeIter(tree_model, &child_iter); | |
| 54 string16 title = | |
| 55 bookmark_utils::GetTitleFromTreeIter(tree_model, &child_iter); | |
| 56 const BookmarkNode* child_bb_node = NULL; | |
| 57 if (id == 0) { | |
| 58 child_bb_node = bb_model->AddGroup(bb_node, bb_node->GetChildCount(), | |
| 59 title); | |
| 60 } else { | |
| 61 // Existing node, reset the title (BBModel ignores changes if the title | |
| 62 // is the same). | |
| 63 for (int j = 0; j < bb_node->GetChildCount(); ++j) { | |
| 64 const BookmarkNode* node = bb_node->GetChild(j); | |
| 65 if (node->is_folder() && node->id() == id) { | |
| 66 child_bb_node = node; | |
| 67 break; | |
| 68 } | |
| 69 } | |
| 70 DCHECK(child_bb_node); | |
| 71 bb_model->SetTitle(child_bb_node, title); | |
| 72 } | |
| 73 RecursiveResolve(bb_model, child_bb_node, | |
| 74 tree_model, &child_iter, | |
| 75 selected_path, selected_node); | |
| 76 } while (gtk_tree_model_iter_next(tree_model, &child_iter)); | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 // Update the folder name in the GtkTreeStore. | |
| 81 void OnFolderNameEdited(GtkCellRendererText* render, | |
| 82 gchar* path, gchar* new_folder_name, GtkTreeStore* tree_store) { | |
| 83 GtkTreeIter folder_iter; | |
| 84 GtkTreePath* tree_path = gtk_tree_path_new_from_string(path); | |
| 85 gboolean rv = gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), | |
| 86 &folder_iter, tree_path); | |
| 87 DCHECK(rv); | |
| 88 gtk_tree_store_set(tree_store, &folder_iter, | |
| 89 bookmark_utils::FOLDER_NAME, new_folder_name, | |
| 90 -1); | |
| 91 gtk_tree_path_free(tree_path); | |
| 92 } | |
| 93 | |
| 94 } // namespace | |
| 95 | |
| 96 namespace bookmark_utils { | |
| 97 | |
| 98 GtkTreeStore* MakeFolderTreeStore() { | |
| 99 return gtk_tree_store_new(FOLDER_STORE_NUM_COLUMNS, GDK_TYPE_PIXBUF, | |
| 100 G_TYPE_STRING, G_TYPE_INT64, G_TYPE_BOOLEAN); | |
| 101 } | |
| 102 | |
| 103 void AddToTreeStore(BookmarkModel* model, int64 selected_id, | |
| 104 GtkTreeStore* store, GtkTreeIter* selected_iter) { | |
| 105 const BookmarkNode* root_node = model->root_node(); | |
| 106 for (int i = 0; i < root_node->GetChildCount(); ++i) { | |
| 107 AddToTreeStoreAt(root_node->GetChild(i), selected_id, store, selected_iter, | |
| 108 NULL); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 GtkWidget* MakeTreeViewForStore(GtkTreeStore* store) { | |
| 113 GtkTreeViewColumn* column = gtk_tree_view_column_new(); | |
| 114 GtkCellRenderer* image_renderer = gtk_cell_renderer_pixbuf_new(); | |
| 115 gtk_tree_view_column_pack_start(column, image_renderer, FALSE); | |
| 116 gtk_tree_view_column_add_attribute(column, image_renderer, | |
| 117 "pixbuf", FOLDER_ICON); | |
| 118 GtkCellRenderer* text_renderer = gtk_cell_renderer_text_new(); | |
| 119 g_object_set(text_renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL); | |
| 120 g_signal_connect(text_renderer, "edited", G_CALLBACK(OnFolderNameEdited), | |
| 121 store); | |
| 122 gtk_tree_view_column_pack_start(column, text_renderer, TRUE); | |
| 123 gtk_tree_view_column_set_attributes(column, text_renderer, | |
| 124 "text", FOLDER_NAME, | |
| 125 "editable", IS_EDITABLE, | |
| 126 NULL); | |
| 127 | |
| 128 GtkWidget* tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store)); | |
| 129 // Let |tree_view| own the store. | |
| 130 g_object_unref(store); | |
| 131 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree_view), FALSE); | |
| 132 gtk_tree_view_append_column(GTK_TREE_VIEW(tree_view), column); | |
| 133 g_object_set_data(G_OBJECT(tree_view), kCellRendererTextKey, text_renderer); | |
| 134 return tree_view; | |
| 135 } | |
| 136 | |
| 137 GtkCellRenderer* GetCellRendererText(GtkTreeView* tree_view) { | |
| 138 return static_cast<GtkCellRenderer*>( | |
| 139 g_object_get_data(G_OBJECT(tree_view), kCellRendererTextKey)); | |
| 140 } | |
| 141 | |
| 142 void AddToTreeStoreAt(const BookmarkNode* node, int64 selected_id, | |
| 143 GtkTreeStore* store, GtkTreeIter* selected_iter, | |
| 144 GtkTreeIter* parent) { | |
| 145 if (!node->is_folder()) | |
| 146 return; | |
| 147 | |
| 148 GtkTreeIter iter; | |
| 149 AddSingleNodeToTreeStore(store, node, &iter, parent); | |
| 150 if (selected_iter && node->id() == selected_id) { | |
| 151 // Save the iterator. Since we're using a GtkTreeStore, we're | |
| 152 // guaranteed that the iterator will remain valid as long as the above | |
| 153 // appended item exists. | |
| 154 *selected_iter = iter; | |
| 155 } | |
| 156 | |
| 157 for (int i = 0; i < node->GetChildCount(); ++i) { | |
| 158 AddToTreeStoreAt(node->GetChild(i), selected_id, store, selected_iter, | |
| 159 &iter); | |
| 160 } | |
| 161 } | |
| 162 | |
| 163 const BookmarkNode* CommitTreeStoreDifferencesBetween( | |
| 164 BookmarkModel* bb_model, GtkTreeStore* tree_store, GtkTreeIter* selected) { | |
| 165 const BookmarkNode* node_to_return = NULL; | |
| 166 GtkTreeModel* tree_model = GTK_TREE_MODEL(tree_store); | |
| 167 | |
| 168 GtkTreePath* selected_path = gtk_tree_model_get_path(tree_model, selected); | |
| 169 | |
| 170 GtkTreeIter tree_root; | |
| 171 if (!gtk_tree_model_get_iter_first(tree_model, &tree_root)) | |
| 172 NOTREACHED() << "Impossible missing bookmarks case"; | |
| 173 | |
| 174 // The top level of this tree is weird and needs to be special cased. The | |
| 175 // BookmarksNode tree is rooted on a root node while the GtkTreeStore has a | |
| 176 // set of top level nodes that are the root BookmarksNode's children. These | |
| 177 // items in the top level are not editable and therefore don't need the extra | |
| 178 // complexity of trying to modify their title. | |
| 179 const BookmarkNode* root_node = bb_model->root_node(); | |
| 180 do { | |
| 181 DCHECK(GetIdFromTreeIter(tree_model, &tree_root) != 0) | |
| 182 << "It should be impossible to add another toplevel node"; | |
| 183 | |
| 184 int64 id = GetIdFromTreeIter(tree_model, &tree_root); | |
| 185 const BookmarkNode* child_node = NULL; | |
| 186 for (int j = 0; j < root_node->GetChildCount(); ++j) { | |
| 187 const BookmarkNode* node = root_node->GetChild(j); | |
| 188 if (node->is_folder() && node->id() == id) { | |
| 189 child_node = node; | |
| 190 break; | |
| 191 } | |
| 192 } | |
| 193 DCHECK(child_node); | |
| 194 | |
| 195 GtkTreeIter child_iter = tree_root; | |
| 196 RecursiveResolve(bb_model, child_node, tree_model, &child_iter, | |
| 197 selected_path, &node_to_return); | |
| 198 } while (gtk_tree_model_iter_next(tree_model, &tree_root)); | |
| 199 | |
| 200 gtk_tree_path_free(selected_path); | |
| 201 return node_to_return; | |
| 202 } | |
| 203 | |
| 204 int64 GetIdFromTreeIter(GtkTreeModel* model, GtkTreeIter* iter) { | |
| 205 GValue value = { 0, }; | |
| 206 int64 ret_val = -1; | |
| 207 gtk_tree_model_get_value(model, iter, ITEM_ID, &value); | |
| 208 if (G_VALUE_HOLDS_INT64(&value)) | |
| 209 ret_val = g_value_get_int64(&value); | |
| 210 else | |
| 211 NOTREACHED() << "Impossible type mismatch"; | |
| 212 | |
| 213 return ret_val; | |
| 214 } | |
| 215 | |
| 216 string16 GetTitleFromTreeIter(GtkTreeModel* model, GtkTreeIter* iter) { | |
| 217 GValue value = { 0, }; | |
| 218 string16 ret_val; | |
| 219 gtk_tree_model_get_value(model, iter, FOLDER_NAME, &value); | |
| 220 if (G_VALUE_HOLDS_STRING(&value)) { | |
| 221 const gchar* utf8str = g_value_get_string(&value); | |
| 222 ret_val = UTF8ToUTF16(utf8str); | |
| 223 g_value_unset(&value); | |
| 224 } else { | |
| 225 NOTREACHED() << "Impossible type mismatch"; | |
| 226 } | |
| 227 | |
| 228 return ret_val; | |
| 229 } | |
| 230 | |
| 231 } // namespace bookmark_utils | |
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