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ladybird/Userland/Applications/TextEditor/MainWidget.cpp
Ali Mohammad Pur aeee98b3a1 AK+Everywhere: Remove the null state of DeprecatedString 
This commit removes DeprecatedString's "null" state, and replaces all
its users with one of the following:
- A normal, empty DeprecatedString
- Optional<DeprecatedString>

Note that null states of DeprecatedFlyString/StringView/etc are *not*
affected by this commit. However, DeprecatedString::empty() is now
considered equal to a null StringView.
2023-10-13 18:33:21 +03:30

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41 KiB
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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "MainWidget.h"
#include <AK/Optional.h>
#include <AK/StringBuilder.h>
#include <AK/URL.h>
#include <Applications/TextEditor/TextEditorWindowGML.h>
#include <LibCMake/CMakeCache/SyntaxHighlighter.h>
#include <LibCMake/SyntaxHighlighter.h>
#include <LibConfig/Client.h>
#include <LibCore/Debounce.h>
#include <LibCpp/SyntaxHighlighter.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/CheckBox.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/FontPicker.h>
#include <LibGUI/GML/SyntaxHighlighter.h>
#include <LibGUI/GitCommitSyntaxHighlighter.h>
#include <LibGUI/GroupBox.h>
#include <LibGUI/INISyntaxHighlighter.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/RegularEditingEngine.h>
#include <LibGUI/Statusbar.h>
#include <LibGUI/TextBox.h>
#include <LibGUI/TextEditor.h>
#include <LibGUI/Toolbar.h>
#include <LibGUI/ToolbarContainer.h>
#include <LibGUI/VimEditingEngine.h>
#include <LibGfx/Font/Font.h>
#include <LibJS/SyntaxHighlighter.h>
#include <LibMarkdown/Document.h>
#include <LibMarkdown/SyntaxHighlighter.h>
#include <LibSQL/AST/SyntaxHighlighter.h>
#include <LibWeb/CSS/SyntaxHighlighter/SyntaxHighlighter.h>
#include <LibWeb/HTML/SyntaxHighlighter/SyntaxHighlighter.h>
#include <LibWebView/OutOfProcessWebView.h>
#include <Shell/SyntaxHighlighter.h>
namespace TextEditor {
MainWidget::MainWidget()
{
load_from_gml(text_editor_window_gml).release_value_but_fixme_should_propagate_errors();
m_toolbar = *find_descendant_of_type_named<GUI::Toolbar>("toolbar");
m_toolbar_container = *find_descendant_of_type_named<GUI::ToolbarContainer>("toolbar_container");
m_editor = *find_descendant_of_type_named<GUI::TextEditor>("editor");
m_editor->set_ruler_visible(true);
m_editor->set_automatic_indentation_enabled(true);
if (m_editor->editing_engine()->is_regular())
m_editor->set_editing_engine(make<GUI::RegularEditingEngine>());
else if (m_editor->editing_engine()->is_vim())
m_editor->set_editing_engine(make<GUI::VimEditingEngine>());
else
VERIFY_NOT_REACHED();
auto font_entry = Config::read_string("TextEditor"sv, "Text"sv, "Font"sv, "default"sv);
if (font_entry != "default")
m_editor->set_font(Gfx::FontDatabase::the().get_by_name(font_entry));
m_editor->on_change = Core::debounce(100, [this] {
update_preview();
});
m_editor->on_modified_change = [this](bool modified) {
window()->set_modified(modified);
};
m_find_replace_widget = *find_descendant_of_type_named<GUI::GroupBox>("find_replace_widget");
m_find_widget = *find_descendant_of_type_named<GUI::Widget>("find_widget");
m_replace_widget = *find_descendant_of_type_named<GUI::Widget>("replace_widget");
m_find_textbox = *find_descendant_of_type_named<GUI::TextBox>("find_textbox");
m_find_textbox->set_placeholder("Find"sv);
m_replace_textbox = *find_descendant_of_type_named<GUI::TextBox>("replace_textbox");
m_replace_textbox->set_placeholder("Replace"sv);
m_match_case_checkbox = *find_descendant_of_type_named<GUI::CheckBox>("match_case_checkbox");
m_match_case_checkbox->on_checked = [this](auto is_checked) {
m_match_case = is_checked;
};
m_match_case_checkbox->set_checked(true);
m_regex_checkbox = *find_descendant_of_type_named<GUI::CheckBox>("regex_checkbox");
m_regex_checkbox->on_checked = [this](auto is_checked) {
m_use_regex = is_checked;
};
m_regex_checkbox->set_checked(false);
m_wrap_around_checkbox = *find_descendant_of_type_named<GUI::CheckBox>("wrap_around_checkbox");
m_wrap_around_checkbox->on_checked = [this](auto is_checked) {
m_should_wrap = is_checked;
};
m_wrap_around_checkbox->set_checked(true);
m_find_next_action = GUI::Action::create("Find &Next", { Mod_Ctrl, Key_G }, Gfx::Bitmap::load_from_file("/res/icons/16x16/find-next.png"sv).release_value_but_fixme_should_propagate_errors(), [this](auto&) {
find_text(GUI::TextEditor::SearchDirection::Forward, ShowMessageIfNoResults::Yes);
});
m_find_previous_action = GUI::Action::create("Find Pr&evious", { Mod_Ctrl | Mod_Shift, Key_G }, Gfx::Bitmap::load_from_file("/res/icons/16x16/find-previous.png"sv).release_value_but_fixme_should_propagate_errors(), [this](auto&) {
find_text(GUI::TextEditor::SearchDirection::Backward, ShowMessageIfNoResults::Yes);
});
m_replace_action = GUI::Action::create("Rep&lace", { Mod_Ctrl, Key_F1 }, [&](auto&) {
auto needle = m_find_textbox->text();
auto substitute = m_replace_textbox->text();
if (needle.is_empty())
return;
if (m_use_regex)
m_editor->document().update_regex_matches(needle);
auto found_range = m_editor->document().find_next(needle, m_editor->normalized_selection().start(), m_should_wrap ? GUI::TextDocument::SearchShouldWrap::Yes : GUI::TextDocument::SearchShouldWrap::No, m_use_regex, m_match_case);
if (found_range.is_valid()) {
m_editor->set_selection(found_range);
m_editor->insert_at_cursor_or_replace_selection(substitute);
} else {
GUI::MessageBox::show(window(),
DeprecatedString::formatted("Not found: \"{}\"", needle),
"Not found"sv,
GUI::MessageBox::Type::Information);
}
});
m_replace_all_action = GUI::Action::create("Replace &All", { Mod_Ctrl, Key_F2 }, [&](auto&) {
auto needle = m_find_textbox->text();
auto substitute = m_replace_textbox->text();
auto length_delta = substitute.length() - needle.length();
if (needle.is_empty())
return;
if (m_use_regex)
m_editor->document().update_regex_matches(needle);
auto found_range = m_editor->document().find_next(needle, {}, GUI::TextDocument::SearchShouldWrap::No, m_use_regex, m_match_case);
if (found_range.is_valid()) {
while (found_range.is_valid()) {
m_editor->set_selection(found_range);
m_editor->insert_at_cursor_or_replace_selection(substitute);
auto next_start = GUI::TextPosition(found_range.end().line(), found_range.end().column() + length_delta);
found_range = m_editor->document().find_next(needle, next_start, GUI::TextDocument::SearchShouldWrap::No, m_use_regex, m_match_case);
}
} else {
GUI::MessageBox::show(window(),
DeprecatedString::formatted("Not found: \"{}\"", needle),
"Not found"sv,
GUI::MessageBox::Type::Information);
}
});
m_find_previous_button = *find_descendant_of_type_named<GUI::Button>("find_previous_button");
m_find_previous_button->set_action(*m_find_previous_action);
m_find_previous_button->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/find-previous.png"sv).release_value_but_fixme_should_propagate_errors());
m_find_next_button = *find_descendant_of_type_named<GUI::Button>("find_next_button");
m_find_next_button->set_action(*m_find_next_action);
m_find_next_button->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/find-next.png"sv).release_value_but_fixme_should_propagate_errors());
m_find_textbox->on_return_pressed = [this] {
m_find_next_button->click();
};
m_find_textbox->on_escape_pressed = [this] {
m_find_replace_widget->set_visible(false);
m_editor->set_focus(true);
m_editor->reset_search_results();
};
m_find_textbox->on_change = [this] {
m_editor->reset_search_results();
find_text(GUI::TextEditor::SearchDirection::Forward, ShowMessageIfNoResults::No);
};
m_replace_button = *find_descendant_of_type_named<GUI::Button>("replace_button");
m_replace_button->set_action(*m_replace_action);
m_replace_all_button = *find_descendant_of_type_named<GUI::Button>("replace_all_button");
m_replace_all_button->set_action(*m_replace_all_action);
m_replace_textbox->on_return_pressed = [this] {
m_replace_button->click();
};
m_replace_textbox->on_escape_pressed = [this] {
m_find_replace_widget->set_visible(false);
m_editor->set_focus(true);
};
m_vim_emulation_setting_action = GUI::Action::create_checkable("&Vim Emulation", { Mod_Ctrl | Mod_Shift | Mod_Alt, Key_V }, [&](auto& action) {
if (action.is_checked())
m_editor->set_editing_engine(make<GUI::VimEditingEngine>());
else
m_editor->set_editing_engine(make<GUI::RegularEditingEngine>());
});
m_vim_emulation_setting_action->set_checked(false);
m_find_replace_action = GUI::Action::create("&Find/Replace...", { Mod_Ctrl | Mod_Shift, Key_F }, Gfx::Bitmap::load_from_file("/res/icons/16x16/find.png"sv).release_value_but_fixme_should_propagate_errors(), [this](auto&) {
m_find_replace_widget->set_visible(true);
m_find_widget->set_visible(true);
m_replace_widget->set_visible(true);
m_find_textbox->set_focus(true);
if (m_editor->has_selection()) {
auto selected_text = m_editor->document().text_in_range(m_editor->normalized_selection());
m_find_textbox->set_text(selected_text);
}
m_find_textbox->select_all();
});
m_editor->add_custom_context_menu_action(*m_find_replace_action);
m_editor->add_custom_context_menu_action(*m_find_next_action);
m_editor->add_custom_context_menu_action(*m_find_previous_action);
m_line_column_statusbar_menu = GUI::Menu::construct();
m_syntax_statusbar_menu = GUI::Menu::construct();
m_statusbar = *find_descendant_of_type_named<GUI::Statusbar>("statusbar");
m_statusbar->segment(1).set_mode(GUI::Statusbar::Segment::Mode::Auto);
m_statusbar->segment(1).set_clickable(true);
m_statusbar->segment(1).set_menu(m_syntax_statusbar_menu);
m_statusbar->segment(2).set_mode(GUI::Statusbar::Segment::Mode::Fixed);
auto width = font().width("Ln 0,000 Col 000"sv) + font().max_glyph_width();
m_statusbar->segment(2).set_fixed_width(width);
m_statusbar->segment(2).set_clickable(true);
m_statusbar->segment(2).set_menu(m_line_column_statusbar_menu);
GUI::Application::the()->on_action_enter = [this](GUI::Action& action) {
m_statusbar->set_override_text(action.status_tip());
};
GUI::Application::the()->on_action_leave = [this](GUI::Action&) {
m_statusbar->set_override_text({});
};
m_editor->on_cursor_change = [this] { update_statusbar(); };
m_editor->on_selection_change = [this] { update_statusbar(); };
m_editor->on_highlighter_change = [this] { update_statusbar(); };
m_new_action = GUI::Action::create("&New", { Mod_Ctrl, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/new.png"sv).release_value_but_fixme_should_propagate_errors(), [this](GUI::Action const&) {
if (editor().document().is_modified()) {
auto save_document_first_result = GUI::MessageBox::ask_about_unsaved_changes(window(), m_path, editor().document().undo_stack().last_unmodified_timestamp());
if (save_document_first_result == GUI::Dialog::ExecResult::Yes)
m_save_action->activate();
if (save_document_first_result != GUI::Dialog::ExecResult::No && editor().document().is_modified())
return;
}
m_editor->set_text(StringView());
set_path({});
update_title();
});
m_open_action = GUI::CommonActions::make_open_action([this](auto&) {
if (editor().document().is_modified()) {
auto save_document_first_result = GUI::MessageBox::ask_about_unsaved_changes(window(), m_path, editor().document().undo_stack().last_unmodified_timestamp());
if (save_document_first_result == GUI::Dialog::ExecResult::Yes)
m_save_action->activate();
if (save_document_first_result != GUI::Dialog::ExecResult::No && editor().document().is_modified())
return;
}
auto response = FileSystemAccessClient::Client::the().open_file(window());
if (response.is_error())
return;
if (auto result = read_file(response.value().filename(), response.value().stream()); result.is_error())
GUI::MessageBox::show(window(), "Unable to open file.\n"sv, "Error"sv, GUI::MessageBox::Type::Error);
});
m_save_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
auto extension = m_extension;
if (extension.is_empty() && m_editor->syntax_highlighter())
extension = Syntax::common_language_extension(m_editor->syntax_highlighter()->language());
auto response = FileSystemAccessClient::Client::the().save_file(window(), m_name, extension);
if (response.is_error())
return;
auto file = response.release_value();
if (auto result = m_editor->write_to_file(file.stream()); result.is_error()) {
GUI::MessageBox::show(window(), "Unable to save file.\n"sv, "Error"sv, GUI::MessageBox::Type::Error);
return;
}
set_path(file.filename());
GUI::Application::the()->set_most_recently_open_file(file.filename());
dbgln("Wrote document to {}", file.filename());
});
m_save_action = GUI::CommonActions::make_save_action([&](auto&) {
if (m_path.is_empty()) {
m_save_as_action->activate();
return;
}
auto response = FileSystemAccessClient::Client::the().request_file(window(), m_path, Core::File::OpenMode::Truncate | Core::File::OpenMode::Write);
if (response.is_error())
return;
if (auto result = m_editor->write_to_file(response.value().stream()); result.is_error()) {
GUI::MessageBox::show(window(), "Unable to save file.\n"sv, "Error"sv, GUI::MessageBox::Type::Error);
}
});
auto file_manager_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/app-file-manager.png"sv).release_value_but_fixme_should_propagate_errors();
m_open_folder_action = GUI::Action::create("Reveal in File Manager", { Mod_Ctrl | Mod_Shift, Key_O }, file_manager_icon, [&](auto&) {
auto lexical_path = LexicalPath(m_path);
Desktop::Launcher::open(URL::create_with_file_scheme(lexical_path.dirname(), lexical_path.basename()));
});
m_open_folder_action->set_enabled(!m_path.is_empty());
m_open_folder_action->set_status_tip("Open the current file location in File Manager"_string);
m_toolbar->add_action(*m_new_action);
m_toolbar->add_action(*m_open_action);
m_toolbar->add_action(*m_save_action);
m_toolbar->add_separator();
m_toolbar->add_action(*m_open_folder_action);
m_toolbar->add_separator();
m_toolbar->add_action(m_editor->cut_action());
m_toolbar->add_action(m_editor->copy_action());
m_toolbar->add_action(m_editor->paste_action());
m_toolbar->add_separator();
m_toolbar->add_action(m_editor->undo_action());
m_toolbar->add_action(m_editor->redo_action());
}
WebView::OutOfProcessWebView& MainWidget::ensure_web_view()
{
if (!m_page_view) {
auto& web_view_container = *find_descendant_of_type_named<GUI::Widget>("web_view_container");
m_page_view = web_view_container.add<WebView::OutOfProcessWebView>();
m_page_view->on_link_hover = [this](auto& url) {
if (url.is_valid())
m_statusbar->set_text(String::from_deprecated_string(url.to_deprecated_string()).release_value_but_fixme_should_propagate_errors());
else
update_statusbar();
};
m_page_view->on_link_click = [&](auto& url, auto&, unsigned) {
if (!Desktop::Launcher::open(url)) {
GUI::MessageBox::show(
window(),
DeprecatedString::formatted("The link to '{}' could not be opened.", url),
"Failed to open link"sv,
GUI::MessageBox::Type::Error);
}
};
}
return *m_page_view;
}
ErrorOr<void> MainWidget::initialize_menubar(GUI::Window& window)
{
auto file_menu = window.add_menu("&File"_string);
file_menu->add_action(*m_new_action);
file_menu->add_action(*m_open_action);
file_menu->add_action(*m_save_action);
file_menu->add_action(*m_save_as_action);
file_menu->add_separator();
file_menu->add_action(*m_open_folder_action);
file_menu->add_separator();
file_menu->add_recent_files_list([&](auto& action) {
if (editor().document().is_modified()) {
auto save_document_first_result = GUI::MessageBox::ask_about_unsaved_changes(&window, m_path, editor().document().undo_stack().last_unmodified_timestamp());
if (save_document_first_result == GUI::Dialog::ExecResult::Yes)
m_save_action->activate();
if (save_document_first_result != GUI::Dialog::ExecResult::No && editor().document().is_modified())
return;
}
auto response = FileSystemAccessClient::Client::the().request_file_read_only_approved(&window, action.text());
if (response.is_error())
return;
if (auto result = read_file(response.value().filename(), response.value().stream()); result.is_error())
GUI::MessageBox::show(&window, "Unable to open file.\n"sv, "Error"sv, GUI::MessageBox::Type::Error);
});
file_menu->add_action(GUI::CommonActions::make_quit_action([this](auto&) {
if (!request_close())
return;
GUI::Application::the()->quit();
}));
auto edit_menu = window.add_menu("&Edit"_string);
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_separator();
edit_menu->add_action(m_editor->insert_emoji_action());
edit_menu->add_action(*m_vim_emulation_setting_action);
edit_menu->add_separator();
edit_menu->add_action(*m_find_replace_action);
edit_menu->add_action(*m_find_next_action);
edit_menu->add_action(*m_find_previous_action);
edit_menu->add_action(*m_replace_action);
edit_menu->add_action(*m_replace_all_action);
m_no_preview_action = GUI::Action::create_checkable(
"&No Preview", [this](auto&) {
set_preview_mode(PreviewMode::None);
});
m_markdown_preview_action = GUI::Action::create_checkable(
"&Markdown Preview", [this](auto&) {
set_preview_mode(PreviewMode::Markdown);
},
this);
m_html_preview_action = GUI::Action::create_checkable(
"&HTML Preview", [this](auto&) {
set_preview_mode(PreviewMode::HTML);
},
this);
m_preview_actions.add_action(*m_no_preview_action);
m_preview_actions.add_action(*m_markdown_preview_action);
m_preview_actions.add_action(*m_html_preview_action);
m_preview_actions.set_exclusive(true);
m_layout_toolbar_action = GUI::Action::create_checkable("&Toolbar", [&](auto& action) {
action.is_checked() ? m_toolbar_container->set_visible(true) : m_toolbar_container->set_visible(false);
Config::write_bool("TextEditor"sv, "Layout"sv, "ShowToolbar"sv, action.is_checked());
});
auto show_toolbar = Config::read_bool("TextEditor"sv, "Layout"sv, "ShowToolbar"sv, true);
m_layout_toolbar_action->set_checked(show_toolbar);
m_toolbar_container->set_visible(show_toolbar);
m_layout_statusbar_action = GUI::Action::create_checkable("&Status Bar", [&](auto& action) {
action.is_checked() ? m_statusbar->set_visible(true) : m_statusbar->set_visible(false);
Config::write_bool("TextEditor"sv, "Layout"sv, "ShowStatusbar"sv, action.is_checked());
update_statusbar();
});
auto show_statusbar = Config::read_bool("TextEditor"sv, "Layout"sv, "ShowStatusbar"sv, true);
m_layout_statusbar_action->set_checked(show_statusbar);
m_statusbar->set_visible(show_statusbar);
m_layout_ruler_action = GUI::Action::create_checkable("&Ruler", [&](auto& action) {
action.is_checked() ? m_editor->set_ruler_visible(true) : m_editor->set_ruler_visible(false);
Config::write_bool("TextEditor"sv, "Layout"sv, "ShowRuler"sv, action.is_checked());
});
auto show_ruler = Config::read_bool("TextEditor"sv, "Layout"sv, "ShowRuler"sv, true);
m_layout_ruler_action->set_checked(show_ruler);
m_editor->set_ruler_visible(show_ruler);
auto view_menu = window.add_menu("&View"_string);
auto layout_menu = view_menu->add_submenu("&Layout"_string);
layout_menu->add_action(*m_layout_toolbar_action);
layout_menu->add_action(*m_layout_statusbar_action);
layout_menu->add_action(*m_layout_ruler_action);
view_menu->add_separator();
view_menu->add_action(GUI::Action::create("Change &Font...", TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-font-editor.png"sv)),
[&](auto&) {
auto picker = GUI::FontPicker::construct(&window, &m_editor->font(), false);
if (picker->exec() == GUI::Dialog::ExecResult::OK) {
dbgln("setting font {}", picker->font()->qualified_name());
m_editor->set_font(picker->font());
Config::write_string("TextEditor"sv, "Text"sv, "Font"sv, picker->font()->qualified_name());
}
}));
view_menu->add_separator();
m_wrapping_mode_actions.set_exclusive(true);
auto wrapping_mode_menu = view_menu->add_submenu("&Wrapping Mode"_string);
m_no_wrapping_action = GUI::Action::create_checkable("&No Wrapping", [&](auto&) {
m_editor->set_wrapping_mode(GUI::TextEditor::WrappingMode::NoWrap);
Config::write_string("TextEditor"sv, "View"sv, "WrappingMode"sv, "None"sv);
});
m_wrap_anywhere_action = GUI::Action::create_checkable("Wrap &Anywhere", [&](auto&) {
m_editor->set_wrapping_mode(GUI::TextEditor::WrappingMode::WrapAnywhere);
Config::write_string("TextEditor"sv, "View"sv, "WrappingMode"sv, "Anywhere"sv);
});
m_wrap_at_words_action = GUI::Action::create_checkable("Wrap at &Words", [&](auto&) {
m_editor->set_wrapping_mode(GUI::TextEditor::WrappingMode::WrapAtWords);
Config::write_string("TextEditor"sv, "View"sv, "WrappingMode"sv, "Words"sv);
});
m_wrapping_mode_actions.add_action(*m_no_wrapping_action);
m_wrapping_mode_actions.add_action(*m_wrap_anywhere_action);
m_wrapping_mode_actions.add_action(*m_wrap_at_words_action);
wrapping_mode_menu->add_action(*m_no_wrapping_action);
wrapping_mode_menu->add_action(*m_wrap_anywhere_action);
wrapping_mode_menu->add_action(*m_wrap_at_words_action);
auto word_wrap = Config::read_string("TextEditor"sv, "View"sv, "WrappingMode"sv, "Words"sv);
if (word_wrap == "None") {
m_no_wrapping_action->set_checked(true);
m_editor->set_wrapping_mode(GUI::TextEditor::WrappingMode::NoWrap);
} else if (word_wrap == "Anywhere") {
m_wrap_anywhere_action->set_checked(true);
m_editor->set_wrapping_mode(GUI::TextEditor::WrappingMode::WrapAnywhere);
} else {
m_wrap_at_words_action->set_checked(true);
m_editor->set_wrapping_mode(GUI::TextEditor::WrappingMode::WrapAtWords);
}
m_soft_tab_width_actions.set_exclusive(true);
auto soft_tab_width_menu = view_menu->add_submenu("&Tab Width"_string);
m_soft_tab_1_width_action = GUI::Action::create_checkable("1", [&](auto&) {
m_editor->set_soft_tab_width(1);
});
m_soft_tab_2_width_action = GUI::Action::create_checkable("2", [&](auto&) {
m_editor->set_soft_tab_width(2);
});
m_soft_tab_4_width_action = GUI::Action::create_checkable("4", [&](auto&) {
m_editor->set_soft_tab_width(4);
});
m_soft_tab_8_width_action = GUI::Action::create_checkable("8", [&](auto&) {
m_editor->set_soft_tab_width(8);
});
m_soft_tab_16_width_action = GUI::Action::create_checkable("16", [&](auto&) {
m_editor->set_soft_tab_width(16);
});
m_soft_tab_width_actions.add_action(*m_soft_tab_1_width_action);
m_soft_tab_width_actions.add_action(*m_soft_tab_2_width_action);
m_soft_tab_width_actions.add_action(*m_soft_tab_4_width_action);
m_soft_tab_width_actions.add_action(*m_soft_tab_8_width_action);
m_soft_tab_width_actions.add_action(*m_soft_tab_16_width_action);
soft_tab_width_menu->add_action(*m_soft_tab_1_width_action);
soft_tab_width_menu->add_action(*m_soft_tab_2_width_action);
soft_tab_width_menu->add_action(*m_soft_tab_4_width_action);
soft_tab_width_menu->add_action(*m_soft_tab_8_width_action);
soft_tab_width_menu->add_action(*m_soft_tab_16_width_action);
m_soft_tab_4_width_action->set_checked(true);
view_menu->add_separator();
m_visualize_trailing_whitespace_action = GUI::Action::create_checkable("T&railing Whitespace", [&](auto&) {
m_editor->set_visualize_trailing_whitespace(m_visualize_trailing_whitespace_action->is_checked());
});
m_visualize_leading_whitespace_action = GUI::Action::create_checkable("L&eading Whitespace", [&](auto&) {
m_editor->set_visualize_leading_whitespace(m_visualize_leading_whitespace_action->is_checked());
});
m_visualize_trailing_whitespace_action->set_checked(true);
m_visualize_trailing_whitespace_action->set_status_tip("Visualize trailing whitespace"_string);
m_visualize_leading_whitespace_action->set_status_tip("Visualize leading whitespace"_string);
view_menu->add_action(*m_visualize_trailing_whitespace_action);
view_menu->add_action(*m_visualize_leading_whitespace_action);
m_cursor_line_highlighting_action = GUI::Action::create_checkable("L&ine Highlighting", [&](auto&) {
m_editor->set_cursor_line_highlighting(m_cursor_line_highlighting_action->is_checked());
});
m_cursor_line_highlighting_action->set_checked(true);
m_cursor_line_highlighting_action->set_status_tip("Highlight the current line"_string);
view_menu->add_action(*m_cursor_line_highlighting_action);
m_relative_line_number_action = GUI::Action::create_checkable("R&elative Line Number", [&](auto& action) {
m_editor->set_relative_line_number(action.is_checked());
Config::write_bool("TextEditor"sv, "View"sv, "RelativeLineNumber"sv, action.is_checked());
});
auto show_relative_line_number = Config::read_bool("TextEditor"sv, "View"sv, "RelativeLineNumber"sv, false);
m_relative_line_number_action->set_checked(show_relative_line_number);
m_editor->set_relative_line_number(show_relative_line_number);
m_relative_line_number_action->set_status_tip("Set relative line number"_string);
view_menu->add_action(*m_relative_line_number_action);
view_menu->add_separator();
view_menu->add_action(*m_no_preview_action);
view_menu->add_action(*m_markdown_preview_action);
view_menu->add_action(*m_html_preview_action);
m_no_preview_action->set_checked(true);
view_menu->add_separator();
syntax_actions.set_exclusive(true);
auto syntax_menu = view_menu->add_submenu("&Syntax"_string);
m_plain_text_highlight = GUI::Action::create_checkable("&Plain Text", [&](auto&) {
m_statusbar->set_text(1, "Plain Text"_string);
m_editor->set_syntax_highlighter({});
m_editor->update();
});
m_plain_text_highlight->set_checked(true);
m_statusbar->set_text(1, "Plain Text"_string);
syntax_actions.add_action(*m_plain_text_highlight);
syntax_menu->add_action(*m_plain_text_highlight);
m_cpp_highlight = GUI::Action::create_checkable("&C++", [&](auto&) {
m_editor->set_syntax_highlighter(make<Cpp::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_cpp_highlight);
syntax_menu->add_action(*m_cpp_highlight);
m_cmake_highlight = GUI::Action::create_checkable("C&Make", [&](auto&) {
m_editor->set_syntax_highlighter(make<CMake::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_cmake_highlight);
syntax_menu->add_action(*m_cmake_highlight);
m_cmakecache_highlight = GUI::Action::create_checkable("CM&akeCache", [&](auto&) {
m_editor->set_syntax_highlighter(make<CMake::Cache::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_cmakecache_highlight);
syntax_menu->add_action(*m_cmakecache_highlight);
m_js_highlight = GUI::Action::create_checkable("&JavaScript", [&](auto&) {
m_editor->set_syntax_highlighter(make<JS::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_js_highlight);
syntax_menu->add_action(*m_js_highlight);
m_css_highlight = GUI::Action::create_checkable("C&SS", [&](auto&) {
m_editor->set_syntax_highlighter(make<Web::CSS::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_css_highlight);
syntax_menu->add_action(*m_css_highlight);
m_html_highlight = GUI::Action::create_checkable("&HTML File", [&](auto&) {
m_editor->set_syntax_highlighter(make<Web::HTML::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_html_highlight);
syntax_menu->add_action(*m_html_highlight);
m_git_highlight = GUI::Action::create_checkable("Gi&t Commit", [&](auto&) {
m_editor->set_syntax_highlighter(make<GUI::GitCommitSyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_git_highlight);
syntax_menu->add_action(*m_git_highlight);
m_gml_highlight = GUI::Action::create_checkable("&GML", [&](auto&) {
m_editor->set_syntax_highlighter(make<GUI::GML::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_gml_highlight);
syntax_menu->add_action(*m_gml_highlight);
m_ini_highlight = GUI::Action::create_checkable("&INI File", [&](auto&) {
m_editor->set_syntax_highlighter(make<GUI::IniSyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_ini_highlight);
syntax_menu->add_action(*m_ini_highlight);
m_markdown_highlight = GUI::Action::create_checkable("Ma&rkdown", [&](auto&) {
m_editor->set_syntax_highlighter(make<Markdown::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_markdown_highlight);
syntax_menu->add_action(*m_markdown_highlight);
m_shell_highlight = GUI::Action::create_checkable("Sh&ell File", [&](auto&) {
m_editor->set_syntax_highlighter(make<Shell::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_shell_highlight);
syntax_menu->add_action(*m_shell_highlight);
m_sql_highlight = GUI::Action::create_checkable("S&QL File", [&](auto&) {
m_editor->set_syntax_highlighter(make<SQL::AST::SyntaxHighlighter>());
m_editor->update();
});
syntax_actions.add_action(*m_sql_highlight);
syntax_menu->add_action(*m_sql_highlight);
auto help_menu = window.add_menu("&Help"_string);
help_menu->add_action(GUI::CommonActions::make_command_palette_action(&window));
help_menu->add_action(GUI::CommonActions::make_help_action([](auto&) {
Desktop::Launcher::open(URL::create_with_file_scheme("/usr/share/man/man1/Applications/TextEditor.md"), "/bin/Help");
}));
help_menu->add_action(GUI::CommonActions::make_about_action("Text Editor"_string, GUI::Icon::default_icon("app-text-editor"sv), &window));
auto wrapping_statusbar_menu = m_line_column_statusbar_menu->add_submenu("&Wrapping Mode"_string);
wrapping_statusbar_menu->add_action(*m_no_wrapping_action);
wrapping_statusbar_menu->add_action(*m_wrap_anywhere_action);
wrapping_statusbar_menu->add_action(*m_wrap_at_words_action);
auto tab_width_statusbar_menu = m_line_column_statusbar_menu->add_submenu("&Tab Width"_string);
tab_width_statusbar_menu->add_action(*m_soft_tab_1_width_action);
tab_width_statusbar_menu->add_action(*m_soft_tab_2_width_action);
tab_width_statusbar_menu->add_action(*m_soft_tab_4_width_action);
tab_width_statusbar_menu->add_action(*m_soft_tab_8_width_action);
tab_width_statusbar_menu->add_action(*m_soft_tab_16_width_action);
m_line_column_statusbar_menu->add_separator();
m_line_column_statusbar_menu->add_action(*m_cursor_line_highlighting_action);
m_syntax_statusbar_menu->add_action(*m_plain_text_highlight);
m_syntax_statusbar_menu->add_action(*m_cpp_highlight);
m_syntax_statusbar_menu->add_action(*m_cmake_highlight);
m_syntax_statusbar_menu->add_action(*m_cmakecache_highlight);
m_syntax_statusbar_menu->add_action(*m_css_highlight);
m_syntax_statusbar_menu->add_action(*m_git_highlight);
m_syntax_statusbar_menu->add_action(*m_gml_highlight);
m_syntax_statusbar_menu->add_action(*m_html_highlight);
m_syntax_statusbar_menu->add_action(*m_ini_highlight);
m_syntax_statusbar_menu->add_action(*m_js_highlight);
m_syntax_statusbar_menu->add_action(*m_markdown_highlight);
m_syntax_statusbar_menu->add_action(*m_shell_highlight);
m_syntax_statusbar_menu->add_action(*m_sql_highlight);
return {};
}
void MainWidget::set_path(StringView path)
{
if (path.is_empty()) {
m_path = {};
m_name = {};
m_extension = {};
} else {
auto lexical_path = LexicalPath(path);
m_path = lexical_path.string();
m_name = lexical_path.title();
m_extension = lexical_path.extension();
}
if (m_extension == "c" || m_extension == "cc" || m_extension == "cxx" || m_extension == "cpp" || m_extension == "c++"
|| m_extension == "h" || m_extension == "hh" || m_extension == "hxx" || m_extension == "hpp" || m_extension == "h++") {
m_cpp_highlight->activate();
} else if (m_extension == "cmake" || (m_extension == "txt" && m_name == "CMakeLists")) {
m_cmake_highlight->activate();
} else if (m_extension == "txt" && m_name == "CMakeCache") {
m_cmakecache_highlight->activate();
} else if (m_extension == "js" || m_extension == "mjs" || m_extension == "json") {
m_js_highlight->activate();
} else if (m_name == "COMMIT_EDITMSG") {
m_git_highlight->activate();
} else if (m_extension == "gml") {
m_gml_highlight->activate();
} else if (m_extension == "ini" || m_extension == "af") {
m_ini_highlight->activate();
} else if (m_extension == "md") {
m_markdown_highlight->activate();
} else if (m_extension == "sh" || m_extension == "bash") {
m_shell_highlight->activate();
} else if (m_extension == "sql") {
m_sql_highlight->activate();
} else if (m_extension == "html" || m_extension == "htm") {
m_html_highlight->activate();
} else if (m_extension == "css") {
m_css_highlight->activate();
} else {
m_plain_text_highlight->activate();
}
if (m_auto_detect_preview_mode) {
if (m_extension == "md")
set_preview_mode(PreviewMode::Markdown);
else if (m_extension == "html" || m_extension == "htm")
set_preview_mode(PreviewMode::HTML);
else
set_preview_mode(PreviewMode::None);
}
m_open_folder_action->set_enabled(!path.is_empty());
update_title();
}
void MainWidget::update_title()
{
StringBuilder builder;
if (m_path.is_empty())
builder.append("Untitled"sv);
else
builder.append(m_path);
builder.append("[*] - Text Editor"sv);
window()->set_title(builder.to_deprecated_string());
}
ErrorOr<void> MainWidget::read_file(String const& filename, Core::File& file)
{
m_editor->set_text(TRY(file.read_until_eof()));
set_path(filename);
GUI::Application::the()->set_most_recently_open_file(filename);
m_editor->set_focus(true);
return {};
}
void MainWidget::open_nonexistent_file(DeprecatedString const& path)
{
m_editor->set_text({});
set_path(path);
m_editor->set_focus(true);
}
bool MainWidget::request_close()
{
if (!editor().document().is_modified())
return true;
auto result = GUI::MessageBox::ask_about_unsaved_changes(window(), m_path, editor().document().undo_stack().last_unmodified_timestamp());
if (result == GUI::MessageBox::ExecResult::Yes) {
m_save_action->activate();
if (editor().document().is_modified())
return false;
return true;
}
if (result == GUI::MessageBox::ExecResult::No)
return true;
return false;
}
void MainWidget::drag_enter_event(GUI::DragEvent& event)
{
auto const& mime_types = event.mime_types();
if (mime_types.contains_slow("text/uri-list"sv))
event.accept();
}
void MainWidget::drop_event(GUI::DropEvent& event)
{
event.accept();
window()->move_to_front();
if (event.mime_data().has_urls()) {
auto urls = event.mime_data().urls();
if (urls.is_empty())
return;
if (urls.size() > 1) {
GUI::MessageBox::show(window(), "TextEditor can only open one file at a time!"sv, "One at a time please!"sv, GUI::MessageBox::Type::Error);
return;
}
if (!request_close())
return;
auto response = FileSystemAccessClient::Client::the().request_file_read_only_approved(window(), urls.first().serialize_path());
if (response.is_error())
return;
if (auto result = read_file(response.value().filename(), response.value().stream()); result.is_error())
GUI::MessageBox::show(window(), "Unable to open file.\n"sv, "Error"sv, GUI::MessageBox::Type::Error);
}
}
void MainWidget::set_web_view_visible(bool visible)
{
if (!visible && !m_page_view)
return;
ensure_web_view();
auto& web_view_container = *find_descendant_of_type_named<GUI::Widget>("web_view_container");
web_view_container.set_visible(visible);
}
void MainWidget::set_preview_mode(PreviewMode mode)
{
if (m_preview_mode == mode)
return;
m_preview_mode = mode;
if (m_preview_mode == PreviewMode::HTML) {
m_html_preview_action->set_checked(true);
set_web_view_visible(true);
update_html_preview();
} else if (m_preview_mode == PreviewMode::Markdown) {
m_markdown_preview_action->set_checked(true);
set_web_view_visible(true);
update_markdown_preview();
} else {
m_no_preview_action->set_checked(true);
set_web_view_visible(false);
}
}
void MainWidget::update_preview()
{
switch (m_preview_mode) {
case PreviewMode::Markdown:
update_markdown_preview();
break;
case PreviewMode::HTML:
update_html_preview();
break;
default:
break;
}
}
void MainWidget::update_markdown_preview()
{
auto document = Markdown::Document::parse(m_editor->text());
if (document) {
auto html = document->render_to_html();
auto current_scroll_pos = m_page_view->visible_content_rect();
m_page_view->load_html(html);
m_page_view->scroll_into_view(current_scroll_pos, true, true);
}
}
void MainWidget::update_html_preview()
{
auto current_scroll_pos = m_page_view->visible_content_rect();
m_page_view->load_html(m_editor->text());
m_page_view->scroll_into_view(current_scroll_pos, true, true);
}
void MainWidget::update_statusbar()
{
if (!m_statusbar->is_visible())
return;
StringBuilder builder;
if (m_editor->has_selection()) {
DeprecatedString selected_text = m_editor->selected_text();
auto word_count = m_editor->number_of_selected_words();
builder.appendff("{:'d} {} ({:'d} {}) selected", selected_text.length(), selected_text.length() == 1 ? "character" : "characters", word_count, word_count != 1 ? "words" : "word");
} else {
DeprecatedString text = m_editor->text();
auto word_count = m_editor->number_of_words();
builder.appendff("{:'d} {} ({:'d} {})", text.length(), text.length() == 1 ? "character" : "characters", word_count, word_count != 1 ? "words" : "word");
}
m_statusbar->set_text(0, builder.to_string().release_value_but_fixme_should_propagate_errors());
if (m_editor && m_editor->syntax_highlighter()) {
auto language = m_editor->syntax_highlighter()->language();
m_statusbar->set_text(1, String::from_utf8(Syntax::language_to_string(language)).release_value_but_fixme_should_propagate_errors());
}
m_statusbar->set_text(2, String::formatted("Ln {:'d} Col {:'d}", m_editor->cursor().line() + 1, m_editor->cursor().column()).release_value_but_fixme_should_propagate_errors());
}
void MainWidget::find_text(GUI::TextEditor::SearchDirection direction, ShowMessageIfNoResults show_message)
{
auto needle = m_find_textbox->text();
if (needle.is_empty())
return;
if (m_use_regex)
m_editor->document().update_regex_matches(needle);
auto result = m_editor->find_text(needle, direction,
m_should_wrap ? GUI::TextDocument::SearchShouldWrap::Yes : GUI::TextDocument::SearchShouldWrap::No,
m_use_regex, m_match_case);
if (!result.is_valid() && show_message == ShowMessageIfNoResults::Yes) {
GUI::MessageBox::show(window(),
DeprecatedString::formatted("Not found: \"{}\"", needle),
"Not found"sv,
GUI::MessageBox::Type::Information);
}
}
}
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