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widget-factory: Redo the context menu example
Redo the context menu on the page1 text view in terms of actions.
This commit is contained in:
Matthias Clasen
parent
441a9dfa80
commit
fcf92eb6e7
@ -1303,96 +1303,113 @@ page_combo_separator_func (GtkTreeModel *model,
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}
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static void
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activate_item (GtkWidget *item, GtkTextView *tv)
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toggle_format (GSimpleAction *action,
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GVariant *value,
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gpointer user_data)
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{
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const gchar *tag;
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GtkTextView *text_view = user_data;
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GtkTextIter start, end;
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gboolean active;
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const char *name;
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g_object_get (item, "active", &active, NULL);
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tag = (const gchar *)g_object_get_data (G_OBJECT (item), "tag");
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gtk_text_buffer_get_selection_bounds (gtk_text_view_get_buffer (tv), &start, &end);
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if (active)
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gtk_text_buffer_apply_tag_by_name (gtk_text_view_get_buffer (tv), tag, &start, &end);
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name = g_action_get_name (G_ACTION (action));
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g_simple_action_set_state (action, value);
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gtk_text_buffer_get_selection_bounds (gtk_text_view_get_buffer (text_view), &start, &end);
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if (g_variant_get_boolean (value))
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gtk_text_buffer_apply_tag_by_name (gtk_text_view_get_buffer (text_view), name, &start, &end);
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else
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gtk_text_buffer_remove_tag_by_name (gtk_text_view_get_buffer (tv), tag, &start, &end);
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gtk_text_buffer_remove_tag_by_name (gtk_text_view_get_buffer (text_view), name, &start, &end);
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}
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static void
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add_item (GtkTextView *tv,
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GtkWidget *popup,
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const gchar *text,
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const gchar *tag,
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gboolean set)
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{
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GtkWidget *item, *label;
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if (GTK_IS_MENU (popup))
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{
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item = gtk_check_menu_item_new ();
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gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (item), set);
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g_signal_connect (item, "toggled", G_CALLBACK (activate_item), tv);
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}
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else
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{
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item = gtk_check_button_new ();
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item), set);
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gtk_widget_set_focus_on_click (item, FALSE);
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g_signal_connect (item, "clicked", G_CALLBACK (activate_item), tv);
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}
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label = gtk_label_new ("");
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gtk_label_set_xalign (GTK_LABEL (label), 0);
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gtk_label_set_markup (GTK_LABEL (label), text);
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gtk_widget_show (label);
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gtk_container_add (GTK_CONTAINER (item), label);
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g_object_set_data (G_OBJECT (item), "tag", (gpointer)tag);
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gtk_widget_show (item);
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gtk_container_add (GTK_CONTAINER (popup), item);
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}
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static GActionGroup *actions;
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static void
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populate_popup (GtkTextView *tv,
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GtkWidget *popup)
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text_changed (GtkTextBuffer *buffer)
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{
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gboolean has_selection;
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GtkWidget *item;
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GtkTextIter start, end, iter;
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GAction *bold;
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GAction *italic;
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GAction *underline;
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GtkTextIter iter;
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GtkTextTagTable *tags;
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GtkTextTag *bold, *italic, *underline;
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GtkTextTag *bold_tag, *italic_tag, *underline_tag;
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gboolean all_bold, all_italic, all_underline;
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GtkTextIter start, end;
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gboolean has_selection;
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has_selection = gtk_text_buffer_get_selection_bounds (gtk_text_view_get_buffer (tv), &start, &end);
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bold = g_action_map_lookup_action (G_ACTION_MAP (actions), "bold");
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italic = g_action_map_lookup_action (G_ACTION_MAP (actions), "italic");
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underline = g_action_map_lookup_action (G_ACTION_MAP (actions), "underline");
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has_selection = gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
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g_simple_action_set_enabled (G_SIMPLE_ACTION (bold), has_selection);
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g_simple_action_set_enabled (G_SIMPLE_ACTION (italic), has_selection);
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g_simple_action_set_enabled (G_SIMPLE_ACTION (underline), has_selection);
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if (!has_selection)
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return;
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tags = gtk_text_buffer_get_tag_table (gtk_text_view_get_buffer (tv));
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bold = gtk_text_tag_table_lookup (tags, "bold");
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italic = gtk_text_tag_table_lookup (tags, "italic");
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underline = gtk_text_tag_table_lookup (tags, "underline");
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tags = gtk_text_buffer_get_tag_table (buffer);
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bold_tag = gtk_text_tag_table_lookup (tags, "bold");
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italic_tag = gtk_text_tag_table_lookup (tags, "italic");
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underline_tag = gtk_text_tag_table_lookup (tags, "underline");
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all_bold = TRUE;
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all_italic = TRUE;
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all_underline = TRUE;
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gtk_text_iter_assign (&iter, &start);
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while (!gtk_text_iter_equal (&iter, &end))
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{
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all_bold &= gtk_text_iter_has_tag (&iter, bold);
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all_italic &= gtk_text_iter_has_tag (&iter, italic);
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all_underline &= gtk_text_iter_has_tag (&iter, underline);
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all_bold &= gtk_text_iter_has_tag (&iter, bold_tag);
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all_italic &= gtk_text_iter_has_tag (&iter, italic_tag);
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all_underline &= gtk_text_iter_has_tag (&iter, underline_tag);
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gtk_text_iter_forward_char (&iter);
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}
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if (GTK_IS_MENU (popup))
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{
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item = gtk_separator_menu_item_new ();
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gtk_widget_show (item);
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gtk_container_add (GTK_CONTAINER (popup), item);
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}
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g_simple_action_set_state (G_SIMPLE_ACTION (bold), g_variant_new_boolean (all_bold));
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g_simple_action_set_state (G_SIMPLE_ACTION (italic), g_variant_new_boolean (all_italic));
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g_simple_action_set_state (G_SIMPLE_ACTION (underline), g_variant_new_boolean (all_underline));
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}
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add_item (tv, popup, "<b>Bold</b>", "bold", all_bold);
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add_item (tv, popup, "<i>Italics</i>", "italic", all_italic);
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add_item (tv, popup, "<u>Underline</u>", "underline", all_underline);
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static void
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text_view_add_to_context_menu (GtkTextView *text_view)
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{
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GMenu *menu;
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GActionEntry entries[] = {
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{ "bold", NULL, NULL, "false", toggle_format },
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{ "italic", NULL, NULL, "false", toggle_format },
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{ "underline", NULL, NULL, "false", toggle_format },
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};
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GMenuItem *item;
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GAction *action;
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actions = G_ACTION_GROUP (g_simple_action_group_new ());
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g_action_map_add_action_entries (G_ACTION_MAP (actions), entries, G_N_ELEMENTS (entries), text_view);
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action = g_action_map_lookup_action (G_ACTION_MAP (actions), "bold");
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g_simple_action_set_enabled (G_SIMPLE_ACTION (action), FALSE);
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action = g_action_map_lookup_action (G_ACTION_MAP (actions), "italic");
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g_simple_action_set_enabled (G_SIMPLE_ACTION (action), FALSE);
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action = g_action_map_lookup_action (G_ACTION_MAP (actions), "underline");
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g_simple_action_set_enabled (G_SIMPLE_ACTION (action), FALSE);
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gtk_widget_insert_action_group (GTK_WIDGET (text_view), "format", G_ACTION_GROUP (actions));
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menu = g_menu_new ();
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item = g_menu_item_new (_("Bold"), "format.bold");
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g_menu_item_set_attribute (item, "touch-icon", "s", "format-text-bold-symbolic");
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g_menu_append_item (G_MENU (menu), item);
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g_object_unref (item);
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item = g_menu_item_new (_("Italics"), "format.italic");
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g_menu_item_set_attribute (item, "touch-icon", "s", "format-text-italic-symbolic");
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g_menu_append_item (G_MENU (menu), item);
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g_object_unref (item);
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item = g_menu_item_new (_("Underline"), "format.underline");
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g_menu_item_set_attribute (item, "touch-icon", "s", "format-text-underline-symbolic");
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g_menu_append_item (G_MENU (menu), item);
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gtk_text_view_set_extra_menu (text_view, G_MENU_MODEL (menu));
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g_signal_connect (gtk_text_view_get_buffer (text_view), "changed", G_CALLBACK (text_changed), NULL);
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g_signal_connect (gtk_text_view_get_buffer (text_view), "mark-set", G_CALLBACK (text_changed), NULL);
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}
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static void
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@ -1877,8 +1894,7 @@ activate (GApplication *app)
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g_object_set_data (G_OBJECT (widget), "osd", widget2);
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widget = (GtkWidget *)gtk_builder_get_object (builder, "textview1");
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g_signal_connect (widget, "populate-popup",
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G_CALLBACK (populate_popup), NULL);
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text_view_add_to_context_menu (GTK_TEXT_VIEW (widget));
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widget = (GtkWidget *)gtk_builder_get_object (builder, "open_popover");
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widget2 = (GtkWidget *)gtk_builder_get_object (builder, "open_popover_entry");
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@ -1207,7 +1207,6 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
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<property name="wrap-mode">2</property>
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<property name="left-margin">10</property>
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<property name="right-margin">10</property>
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<property name="populate-all">1</property>
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</object>
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</child>
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</object>
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