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#include "TextEditorWidget.h"
#include <AK/Optional.h>
#include <AK/StringBuilder.h>
#include <LibCore/CFile.h>
#include <LibDraw/PNGLoader.h>
#include <LibGUI/GAboutDialog.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GFilePicker.h>
#include <LibGUI/GFontDatabase.h>
#include <LibGUI/GMenuBar.h>
#include <LibGUI/GMessageBox.h>
#include <LibGUI/GStatusBar.h>
#include <LibGUI/GTextBox.h>
#include <LibGUI/GTextEditor.h>
#include <LibGUI/GToolBar.h>
TextEditorWidget::TextEditorWidget()
{
set_layout(make<GBoxLayout>(Orientation::Vertical));
layout()->set_spacing(0);
auto toolbar = GToolBar::construct(this);
m_editor = GTextEditor::construct(GTextEditor::MultiLine, this);
m_editor->set_ruler_visible(true);
m_editor->set_automatic_indentation_enabled(true);
m_editor->set_line_wrapping_enabled(true);
m_editor->on_change = [this] {
bool was_dirty = m_document_dirty;
m_document_dirty = true;
if (!was_dirty)
update_title();
};
m_find_widget = GWidget::construct(this);
m_find_widget->set_fill_with_background_color(true);
m_find_widget->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
m_find_widget->set_preferred_size(0, 22);
m_find_widget->set_layout(make<GBoxLayout>(Orientation::Horizontal));
m_find_widget->layout()->set_margins({ 2, 2, 2, 2 });
m_find_widget->set_visible(false);
m_find_textbox = GTextBox::construct(m_find_widget);
m_find_next_action = GAction::create("Find next", { Mod_Ctrl, Key_G }, [&](auto&) {
auto needle = m_find_textbox->text();
if (needle.is_empty()) {
dbg() << "find_next(\"\")";
return;
}
auto found_range = m_editor->document().find_next(needle, m_editor->normalized_selection().end());
dbg() << "find_next(\"" << needle << "\") returned " << found_range;
if (found_range.is_valid()) {
m_editor->set_selection(found_range);
} else {
GMessageBox::show(
String::format("Not found: \"%s\"", needle.characters()),
"Not found",
GMessageBox::Type::Information,
GMessageBox::InputType::OK, window());
}
});
m_find_previous_action = GAction::create("Find previous", { Mod_Ctrl | Mod_Shift, Key_G }, [&](auto&) {
auto needle = m_find_textbox->text();
if (needle.is_empty()) {
dbg() << "find_prev(\"\")";
return;
}
auto selection_start = m_editor->normalized_selection().start();
if (!selection_start.is_valid())
selection_start = m_editor->normalized_selection().end();
auto found_range = m_editor->document().find_previous(needle, selection_start);
dbg() << "find_prev(\"" << needle << "\") returned " << found_range;
if (found_range.is_valid()) {
m_editor->set_selection(found_range);
} else {
GMessageBox::show(
String::format("Not found: \"%s\"", needle.characters()),
"Not found",
GMessageBox::Type::Information,
GMessageBox::InputType::OK, window());
}
});
m_find_previous_button = GButton::construct("Previous", m_find_widget);
m_find_previous_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
m_find_previous_button->set_preferred_size(64, 0);
m_find_previous_button->set_action(*m_find_previous_action);
m_find_next_button = GButton::construct("Next", m_find_widget);
m_find_next_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
m_find_next_button->set_preferred_size(64, 0);
m_find_next_button->set_action(*m_find_next_action);
m_find_textbox->on_return_pressed = [this] {
m_find_next_button->click();
};
m_find_textbox->on_escape_pressed = [this] {
m_find_widget->set_visible(false);
m_editor->set_focus(true);
};
m_find_action = GAction::create("Find...", { Mod_Ctrl, Key_F }, load_png("/res/icons/16x16/find.png"), [this](auto&) {
m_find_widget->set_visible(true);
m_find_textbox->set_focus(true);
m_find_textbox->select_all();
});
m_editor->add_custom_context_menu_action(*m_find_action);
m_editor->add_custom_context_menu_action(*m_find_next_action);
m_editor->add_custom_context_menu_action(*m_find_previous_action);
m_statusbar = GStatusBar::construct(this);
m_editor->on_cursor_change = [this] {
StringBuilder builder;
builder.appendf("Line: %d, Column: %d", m_editor->cursor().line() + 1, m_editor->cursor().column());
m_statusbar->set_text(builder.to_string());
};
m_new_action = GAction::create("New", { Mod_Ctrl, Key_N }, GraphicsBitmap::load_from_file("/res/icons/16x16/new.png"), [this](const GAction&) {
if (m_document_dirty) {
auto save_document_first_box = GMessageBox::construct("Save Document First?", "Warning", GMessageBox::Type::Warning, GMessageBox::InputType::OKCancel, window());
auto save_document_first_result = save_document_first_box->exec();
if (save_document_first_result != GDialog::ExecResult::ExecOK)
return;
m_save_action->activate();
}
m_document_dirty = false;
m_editor->set_text(StringView());
set_path(FileSystemPath());
update_title();
});
m_open_action = GCommonActions::make_open_action([this](auto&) {
Optional<String> open_path = GFilePicker::get_open_filepath();
if (!open_path.has_value())
return;
open_sesame(open_path.value());
});
m_save_as_action = GAction::create("Save as...", { Mod_None, Key_F12 }, GraphicsBitmap::load_from_file("/res/icons/16x16/save.png"), [this](const GAction&) {
Optional<String> save_path = GFilePicker::get_save_filepath(m_name.is_null() ? "Untitled" : m_name, m_extension.is_null() ? "txt" : m_extension);
if (!save_path.has_value())
return;
if (!m_editor->write_to_file(save_path.value())) {
GMessageBox::show("Unable to save file.\n", "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
return;
}
m_document_dirty = false;
set_path(FileSystemPath(save_path.value()));
dbg() << "Wrote document to " << save_path.value();
});
m_save_action = GAction::create("Save", { Mod_Ctrl, Key_S }, GraphicsBitmap::load_from_file("/res/icons/16x16/save.png"), [&](const GAction&) {
if (!m_path.is_empty()) {
if (!m_editor->write_to_file(m_path)) {
GMessageBox::show("Unable to save file.\n", "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
} else {
m_document_dirty = false;
update_title();
}
return;
}
m_save_as_action->activate();
});
m_line_wrapping_setting_action = GAction::create("Line wrapping", [&](GAction& action) {
action.set_checked(!action.is_checked());
m_editor->set_line_wrapping_enabled(action.is_checked());
});
m_line_wrapping_setting_action->set_checkable(true);
m_line_wrapping_setting_action->set_checked(m_editor->is_line_wrapping_enabled());
auto menubar = make<GMenuBar>();
auto app_menu = make<GMenu>("Text Editor");
app_menu->add_action(*m_new_action);
app_menu->add_action(*m_open_action);
app_menu->add_action(*m_save_action);
app_menu->add_action(*m_save_as_action);
app_menu->add_separator();
app_menu->add_action(GCommonActions::make_quit_action([this](auto&) {
if (!request_close())
return;
GApplication::the().quit(0);
}));
menubar->add_menu(move(app_menu));
auto edit_menu = make<GMenu>("Edit");
edit_menu->add_action(m_editor->undo_action());
edit_menu->add_action(m_editor->redo_action());
edit_menu->add_separator();
edit_menu->add_action(m_editor->cut_action());
edit_menu->add_action(m_editor->copy_action());
edit_menu->add_action(m_editor->paste_action());
edit_menu->add_action(m_editor->delete_action());
edit_menu->add_separator();
edit_menu->add_action(*m_find_action);
edit_menu->add_action(*m_find_next_action);
edit_menu->add_action(*m_find_previous_action);
menubar->add_menu(move(edit_menu));
auto font_menu = make<GMenu>("Font");
GFontDatabase::the().for_each_fixed_width_font([&](const StringView& font_name) {
font_menu->add_action(GAction::create(font_name, [this](const GAction& action) {
m_editor->set_font(GFontDatabase::the().get_by_name(action.text()));
m_editor->update();
}));
});
auto view_menu = make<GMenu>("View");
view_menu->add_action(*m_line_wrapping_setting_action);
view_menu->add_separator();
view_menu->add_submenu(move(font_menu));
menubar->add_menu(move(view_menu));
auto help_menu = make<GMenu>("Help");
help_menu->add_action(GAction::create("About", [&](const GAction&) {
GAboutDialog::show("TextEditor", load_png("/res/icons/32x32/app-texteditor.png"), window());
}));
menubar->add_menu(move(help_menu));
GApplication::the().set_menubar(move(menubar));
toolbar->add_action(*m_new_action);
toolbar->add_action(*m_open_action);
toolbar->add_action(*m_save_action);
toolbar->add_separator();
toolbar->add_action(m_editor->cut_action());
toolbar->add_action(m_editor->copy_action());
toolbar->add_action(m_editor->paste_action());
toolbar->add_action(m_editor->delete_action());
toolbar->add_separator();
toolbar->add_action(m_editor->undo_action());
toolbar->add_action(m_editor->redo_action());
}
TextEditorWidget::~TextEditorWidget()
{
}
void TextEditorWidget::set_path(const FileSystemPath& file)
{
m_path = file.string();
m_name = file.title();
m_extension = file.extension();
update_title();
}
void TextEditorWidget::update_title()
{
StringBuilder builder;
builder.append("Text Editor: ");
builder.append(m_path);
if (m_document_dirty)
builder.append(" (*)");
window()->set_title(builder.to_string());
}
void TextEditorWidget::open_sesame(const String& path)
{
auto file = CFile::construct(path);
if (!file->open(CIODevice::ReadOnly)) {
GMessageBox::show(String::format("Opening \"%s\" failed: %s", path.characters(), strerror(errno)), "Error", GMessageBox::Type::Error, GMessageBox::InputType::OK, window());
return;
}
m_document_dirty = false;
m_editor->set_text(file->read_all());
set_path(FileSystemPath(path));
}
bool TextEditorWidget::request_close()
{
if (!m_document_dirty)
return true;
auto result = GMessageBox::show("The document has been modified. Quit without saving?", "Quit without saving?", GMessageBox::Type::Warning, GMessageBox::InputType::OKCancel, window());
return result == GMessageBox::ExecOK;
}
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