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abstract ui functions in a UI base class

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This commit is contained in:
Maxime Coste 2012-06-05 23:15:19 +00:00
parent 02051bb067
commit 6a416abae2
6 changed files with 186 additions and 124 deletions
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111
src/commands.cc
View File

@ -7,7 +7,7 @@
#include "buffer.hh"
#include "window.hh"
#include "file.hh"
#include "ncurses.hh"
#include "ui.hh"
#include "regex.hh"
#include "highlighter_registry.hh"
#include "filter_registry.hh"
@ -29,8 +29,6 @@ extern Context main_context;
extern bool quit_requested;
extern std::unordered_map<Key, std::function<void (Editor& editor, int count)>> keymap;
extern PromptFunc prompt_func;
extern GetKeyFunc get_key_func;
namespace
{
@ -220,7 +218,7 @@ Buffer* open_or_create(const String& filename)
}
catch (file_not_found& what)
{
NCurses::print_status("new file " + filename);
print_status("new file " + filename);
buffer = new Buffer(filename, Buffer::Type::NewFile);
}
return buffer;
@ -291,7 +289,7 @@ void quit(const CommandParameters& params, const Context& context)
message += *it;
}
message += "]";
NCurses::print_status(message);
print_status(message);
return;
}
}
@ -369,7 +367,7 @@ void add_highlighter(const CommandParameters& params, const Context& context)
}
catch (runtime_error& err)
{
NCurses::print_status("error: " + err.description());
print_status("error: " + err.description());
}
}
@ -389,7 +387,7 @@ void rm_highlighter(const CommandParameters& params, const Context& context)
}
catch (runtime_error& err)
{
NCurses::print_status("error: " + err.description());
print_status("error: " + err.description());
}
}
@ -407,7 +405,7 @@ void add_filter(const CommandParameters& params, const Context& context)
}
catch (runtime_error& err)
{
NCurses::print_status("error: " + err.description());
print_status("error: " + err.description());
}
}
@ -438,7 +436,7 @@ void add_hook(const CommandParameters& params, const Context& context)
else if (params[0] == "window")
context.window().hook_manager().add_hook(params[1], hook_func);
else
NCurses::print_status("error: no such hook container " + params[0]);
print_status("error: no such hook container " + params[0]);
}
EnvVarMap params_to_env_var_map(const CommandParameters& params)
@ -523,7 +521,7 @@ void echo_message(const CommandParameters& params, const Context& context)
String message;
for (auto& param : params)
message += param + " ";
NCurses::print_status(message);
print_status(message);
}
void exec_commands_in_file(const CommandParameters& params,
@ -559,7 +557,7 @@ void exec_commands_in_file(const CommandParameters& params,
if (end_pos == length)
{
NCurses::print_status(String("unterminated '") + delimiter + "' string");
print_status(String("unterminated '") + delimiter + "' string");
return;
}
@ -584,7 +582,7 @@ void exec_commands_in_file(const CommandParameters& params,
if (end_pos == length)
{
if (cat_with_previous)
NCurses::print_status("while executing commands in \"" + params[0] +
print_status("while executing commands in \"" + params[0] +
"\": last command not complete");
break;
}
@ -645,37 +643,64 @@ private:
char m_name;
};
class BatchUI : public UI
{
public:
BatchUI(const KeyList& keys)
: m_keys(keys), m_pos(0)
{
m_previous_ui = current_ui;
current_ui = this;
}
~BatchUI()
{
current_ui = m_previous_ui;
}
String prompt(const String&, Completer)
{
size_t begin = m_pos;
while (m_pos < m_keys.size() and m_keys[m_pos].key != '\n')
++m_pos;
String result;
for (size_t i = begin; i < m_pos; ++i)
result += String() + m_keys[i].key;
++m_pos;
return result;
}
Key get_key()
{
if (m_pos >= m_keys.size())
throw runtime_error("no more characters");
return m_keys[m_pos++];
}
void print_status(const String& status)
{
m_previous_ui->print_status(status);
}
void draw_window(Window& window)
{
m_previous_ui->draw_window(window);
}
bool has_key_left() const { return m_pos < m_keys.size(); }
private:
const KeyList& m_keys;
size_t m_pos;
UI* m_previous_ui;
};
void exec_keys(const KeyList& keys,
const Context& context)
{
auto prompt_save = prompt_func;
auto get_key_save = get_key_func;
auto restore_funcs = on_scope_end([&]() {
prompt_func = prompt_save;
get_key_func = get_key_save;
});
size_t pos = 0;
prompt_func = [&](const String&, Completer) {
size_t begin = pos;
while (pos < keys.size() and keys[pos].key != '\n')
++pos;
String result;
for (size_t i = begin; i < pos; ++i)
result += String() + keys[i].key;
++pos;
return result;
};
get_key_func = [&]() {
if (pos >= keys.size())
throw runtime_error("no more characters");
return keys[pos++];
};
BatchUI batch_ui(keys);
RegisterRestorer quote('"');
RegisterRestorer slash('/');
@ -687,9 +712,9 @@ void exec_keys(const KeyList& keys,
scoped_edition edition(editor);
int count = 0;
while(pos < keys.size())
while (batch_ui.has_key_left())
{
const Key& key = keys[pos++];
Key key = batch_ui.get_key();
if (key.modifiers == Key::Modifiers::None and isdigit(key.key))
count = count * 10 + key.key - '0';
@ -742,7 +767,7 @@ void menu(const CommandParameters& params,
}
oss << "(empty cancels): ";
String choice = prompt_func(oss.str(), complete_nothing);
String choice = prompt(oss.str(), complete_nothing);
int i = atoi(choice.c_str());
if (i > 0 and i < (count / 2) + 1)

44
src/main.cc
View File

@ -31,24 +31,6 @@ namespace Kakoune
Context main_context;
bool quit_requested = false;
void draw_editor_ifn(Editor& editor)
{
Window* window = dynamic_cast<Window*>(&editor);
if (window)
NCurses::draw_window(*window);
}
PromptFunc prompt_func;
String prompt(const String& text, Completer completer = complete_nothing)
{
return prompt_func(text, completer);
}
GetKeyFunc get_key_func;
Key get_key()
{
return get_key_func();
}
struct InsertSequence
{
@ -243,7 +225,7 @@ void do_search_next(Editor& editor)
if (not ex.empty())
editor.select(std::bind(select_next_match, _1, ex), append);
else
NCurses::print_status("no search pattern");
print_status("no search pattern");
}
void do_yank(Editor& editor, int count)
@ -401,8 +383,8 @@ std::unordered_map<Key, std::function<void (Editor& editor, int count)>> keymap
{ { Key::Modifiers::None, 'n' }, [](Editor& editor, int count) { do_search_next<false>(editor); } },
{ { Key::Modifiers::None, 'N' }, [](Editor& editor, int count) { do_search_next<true>(editor); } },
{ { Key::Modifiers::None, 'u' }, [](Editor& editor, int count) { do { if (not editor.undo()) { NCurses::print_status("nothing left to undo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::None, 'U' }, [](Editor& editor, int count) { do { if (not editor.redo()) { NCurses::print_status("nothing left to redo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::None, 'u' }, [](Editor& editor, int count) { do { if (not editor.undo()) { print_status("nothing left to undo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::None, 'U' }, [](Editor& editor, int count) { do { if (not editor.redo()) { print_status("nothing left to redo"); break; } } while(--count > 0); } },
{ { Key::Modifiers::Alt, 'i' }, do_select_object<true> },
{ { Key::Modifiers::Alt, 'a' }, do_select_object<false> },
@ -437,8 +419,6 @@ void run_unit_tests();
int main(int argc, char* argv[])
{
NCurses::init(prompt_func, get_key_func);
ShellManager shell_manager;
CommandManager command_manager;
BufferManager buffer_manager;
@ -466,11 +446,14 @@ int main(int argc, char* argv[])
}
catch (Kakoune::runtime_error& error)
{
NCurses::print_status(error.description());
print_status(error.description());
}
try
{
NCursesUI ui;
current_ui = &ui;
write_debug("*** This is the debug buffer, where debug info will be written ***\n");
write_debug("utf-8 test: é á ï");
@ -482,7 +465,7 @@ int main(int argc, char* argv[])
main_context = Context(*buffer->get_or_create_window());
}
NCurses::draw_window(main_context.window());
current_ui->draw_window(main_context.window());
int count = 0;
while(not quit_requested)
{
@ -497,29 +480,22 @@ int main(int argc, char* argv[])
if (it != keymap.end())
{
it->second(main_context.window(), count);
NCurses::draw_window(main_context.window());
current_ui->draw_window(main_context.window());
}
count = 0;
}
}
catch (Kakoune::runtime_error& error)
{
NCurses::print_status(error.description());
print_status(error.description());
}
}
NCurses::deinit();
}
catch (Kakoune::exception& error)
{
NCurses::deinit();
puts("uncaught exception:\n");
puts(error.description().c_str());
return -1;
}
catch (...)
{
NCurses::deinit();
throw;
}
return 0;
}

53
src/ncurses.cc
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@ -10,8 +10,26 @@
namespace Kakoune
{
namespace NCurses
NCursesUI::NCursesUI()
{
// setlocale(LC_ALL, "");
initscr();
cbreak();
noecho();
nonl();
intrflush(stdscr, false);
keypad(stdscr, true);
curs_set(0);
start_color();
use_default_colors();
ESCDELAY=25;
}
NCursesUI::~NCursesUI()
{
endwin();
}
static void set_attribute(int attribute, bool on)
{
@ -69,7 +87,7 @@ static void set_color(Color fg_color, Color bg_color)
}
}
void draw_window(Window& window)
void NCursesUI::draw_window(Window& window)
{
int max_x,max_y;
getmaxyx(stdscr, max_y, max_x);
@ -142,7 +160,7 @@ void draw_window(Window& window)
last_status_length = status_line.length();
}
static Key get_key()
Key NCursesUI::get_key()
{
char c = getch();
@ -166,7 +184,7 @@ static Key get_key()
return Key(modifiers, c);
}
static String prompt(const String& text, Completer completer)
String NCursesUI::prompt(const String& text, Completer completer)
{
curs_set(2);
auto restore_cursor = on_scope_end([]() { curs_set(0); });
@ -303,7 +321,7 @@ static String prompt(const String& text, Completer completer)
return result;
}
void print_status(const String& status)
void NCursesUI::print_status(const String& status)
{
int x,y;
getmaxyx(stdscr, y, x);
@ -312,29 +330,4 @@ void print_status(const String& status)
addstr(status.c_str());
}
void init(PromptFunc& prompt_func, GetKeyFunc& get_key_func)
{
// setlocale(LC_ALL, "");
initscr();
cbreak();
noecho();
nonl();
intrflush(stdscr, false);
keypad(stdscr, true);
curs_set(0);
start_color();
use_default_colors();
ESCDELAY=25;
prompt_func = prompt;
get_key_func = get_key;
}
void deinit()
{
endwin();
}
}
}

30
src/ncurses.hh
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@ -1,30 +1,26 @@
#ifndef ncurses_hh_INCLUDED
#define ncurses_hh_INCLUDED
#include <functional>
#include "keys.hh"
#include "completion.hh"
#include "ui.hh"
namespace Kakoune
{
class Window;
typedef std::function<String (const String&, Completer)> PromptFunc;
typedef std::function<Key ()> GetKeyFunc;
struct prompt_aborted {};
namespace NCurses
class NCursesUI : public UI
{
public:
NCursesUI();
~NCursesUI();
void init(PromptFunc& prompt_func, GetKeyFunc& get_key_func);
void deinit();
void draw_window(Window& window);
void print_status(const String& status);
NCursesUI(const NCursesUI&) = delete;
NCursesUI& operator=(const NCursesUI&) = delete;
}
void draw_window(Window& window);
void print_status(const String& status);
String prompt(const String& prompt, Completer completer);
Key get_key();
};
}

35
src/ui.cc Normal file
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@ -0,0 +1,35 @@
#include "ui.hh"
#include "window.hh"
namespace Kakoune
{
UI* current_ui = nullptr;
void draw_editor_ifn(Editor& editor)
{
Window* window = dynamic_cast<Window*>(&editor);
if (current_ui and window)
current_ui->draw_window(*window);
}
String prompt(const String& text, Completer completer)
{
assert(current_ui);
return current_ui->prompt(text, completer);
}
Key get_key()
{
assert(current_ui);
return current_ui->get_key();
}
void print_status(const String& status)
{
assert(current_ui);
return current_ui->print_status(status);
}
}

37
src/ui.hh Normal file
View File

@ -0,0 +1,37 @@
#ifndef ui_hh_INCLUDED
#define ui_hh_INCLUDED
#include "keys.hh"
#include "completion.hh"
namespace Kakoune
{
class Editor;
class Window;
class String;
class UI
{
public:
virtual ~UI() {}
virtual void draw_window(Window& window) = 0;
virtual void print_status(const String& status) = 0;
virtual String prompt(const String& prompt, Completer completer) = 0;
virtual Key get_key() = 0;
};
struct prompt_aborted {};
extern UI* current_ui;
void draw_editor_ifn(Editor& editor);
String prompt(const String& text, Completer completer = complete_nothing);
Key get_key();
void print_status(const String& status);
}
#endif // ui_hh_INCLUDED