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/* Copyright 2009-2010 Yorba Foundation
*
* This software is licensed under the GNU Lesser General Public License
* (version 2.1 or later). See the COPYING file in this distribution.
*/
using Gee;
using Valencia;
class SymbolBrowser {
weak Instance instance;
Gtk.Entry find_entry;
ListViewString list;
Gtk.VBox symbol_vbox;
bool visible;
public SymbolBrowser(Instance instance) {
this.instance = instance;
find_entry = new Gtk.Entry();
find_entry.activate.connect(on_entry_activated);
find_entry.changed.connect(on_text_changed);
find_entry.focus_in_event.connect(on_receive_focus);
// A width of 175 pixels is a sane minimum; the user can always expand this to be bigger
list = new ListViewString(Gtk.TreeViewColumnSizing.FIXED, 175);
list.row_activated.connect(on_list_activated);
list.received_focus.connect(on_list_receive_focus);
symbol_vbox = new Gtk.VBox(false, 6);
symbol_vbox.pack_start(find_entry, false, false, 0);
symbol_vbox.pack_start(list.scrolled_window, true, true, 0);
symbol_vbox.show_all();
weak Gedit.Panel panel = instance.window.get_side_panel();
panel.add_item_with_stock_icon(symbol_vbox, "Symbols", Gtk.STOCK_FIND);
panel.show.connect(on_panel_open);
panel.hide.connect(on_panel_hide);
}
void on_text_changed() {
on_update_symbols();
}
void on_panel_open() {
visible = true;
on_receive_focus();
}
void on_panel_hide() {
visible = false;
}
void on_list_receive_focus(Gtk.TreePath? path) {
on_receive_focus();
if (path != null)
list.select_path(path);
}
bool on_receive_focus() {
if (instance.active_document_is_vala_file()) {
instance.reparse_modified_documents(instance.active_filename());
on_update_symbols();
}
return false;
}
public static void on_active_tab_changed(Gedit.Window window, Gedit.Tab tab,
SymbolBrowser browser) {
browser.on_update_symbols();
}
void on_update_symbols() {
string document_path = instance.active_filename();
if (document_path == null || !Program.is_vala(document_path))
return;
Program program = Program.find_containing(document_path);
if (program.is_parsing())
program.system_parse_complete.connect(update_symbols);
else update_symbols();
}
SourceFile get_current_sourcefile() {
string document_path = instance.active_filename();
Program program = Program.find_containing(document_path);
SourceFile? sf = program.find_source(document_path);
if (sf == null) {
Gedit.Document doc = instance.window.get_active_document();
program.update(document_path, buffer_contents(doc));
sf = program.find_source(document_path);
}
assert(sf != null);
return sf;
}
void update_symbols() {
if (!instance.active_document_is_vala_file()) {
list.clear();
return;
}
string text = find_entry.get_text().substring(0);
Expression id = new Id(text);
SourceFile sf = get_current_sourcefile();
SymbolSet symbol_set = sf.resolve_all_locals(id, 0);
weak HashSet<Symbol> symbols = symbol_set.get_symbols();
string[] symbol_names;
if (symbols != null) {
// Insert symbol names into the list in a sorted order
symbol_names = new string[symbols.size];
int i = 0;
foreach (Symbol symbol in symbols)
symbol_names[i++] = symbol.name;
qsort(symbol_names, symbols.size, sizeof(string), (GLib.CompareFunc) compare_string);
} else symbol_names = new string[0];
list.collate(symbol_names);
}
void jump_to_symbol(string symbol_name) {
if (!instance.active_document_is_vala_file())
return;
Expression id = new Id(symbol_name);
SourceFile sf = get_current_sourcefile();
Symbol? symbol = sf.resolve_local(id, 0);
if (symbol == null)
return;
instance.jump(symbol.source.filename,
new CharRange(symbol.start, symbol.start + (int) symbol.name.length));
}
void on_entry_activated() {
if (list.size() <= 0)
return;
list.select_first_cell();
on_list_activated();
}
void on_list_activated() {
jump_to_symbol(list.get_selected_item());
}
public void on_document_saved() {
if (visible)
on_update_symbols();
}
public void set_parent_instance_focus() {
Gedit.Panel panel = instance.window.get_side_panel();
panel.show();
panel.activate_item(symbol_vbox);
instance.window.set_focus(find_entry);
}
}
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