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df7c0eacd4
When you select a text area in "bottom-up" way (e.g. from line 10 to line 5), then type the shortcut, the text editor will not comment those text for you. Normalize the text range can easily fix this minor bug.
2353 lines
82 KiB
C++
2353 lines
82 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, networkException <networkexception@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/CharacterTypes.h>
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#include <AK/Debug.h>
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#include <AK/ScopeGuard.h>
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#include <AK/StringBuilder.h>
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#include <AK/TemporaryChange.h>
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#include <LibCore/File.h>
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#include <LibCore/Timer.h>
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#include <LibGUI/Action.h>
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#include <LibGUI/AutocompleteProvider.h>
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#include <LibGUI/Clipboard.h>
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#include <LibGUI/EditingEngine.h>
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#include <LibGUI/EmojiInputDialog.h>
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#include <LibGUI/IncrementalSearchBanner.h>
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#include <LibGUI/InputBox.h>
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#include <LibGUI/Menu.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/RegularEditingEngine.h>
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#include <LibGUI/Scrollbar.h>
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#include <LibGUI/TextEditor.h>
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#include <LibGUI/Window.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/Font/Font.h>
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#include <LibGfx/Font/FontDatabase.h>
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#include <LibGfx/Palette.h>
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#include <LibGfx/StandardCursor.h>
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#include <LibSyntax/Highlighter.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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REGISTER_WIDGET(GUI, TextEditor)
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namespace GUI {
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TextEditor::TextEditor(Type type)
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: m_type(type)
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{
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REGISTER_STRING_PROPERTY("text", text, set_text);
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REGISTER_STRING_PROPERTY("placeholder", placeholder, set_placeholder);
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REGISTER_BOOL_PROPERTY("gutter", is_gutter_visible, set_gutter_visible);
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REGISTER_BOOL_PROPERTY("ruler", is_ruler_visible, set_ruler_visible);
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REGISTER_ENUM_PROPERTY("mode", mode, set_mode, Mode,
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{ Editable, "Editable" },
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{ ReadOnly, "ReadOnly" },
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{ DisplayOnly, "DisplayOnly" });
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set_focus_policy(GUI::FocusPolicy::StrongFocus);
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set_or_clear_emoji_input_callback();
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set_override_cursor(Gfx::StandardCursor::IBeam);
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set_background_role(ColorRole::Base);
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set_foreground_role(ColorRole::BaseText);
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set_document(TextDocument::create());
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if (is_single_line())
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set_visualize_trailing_whitespace(false);
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set_scrollbars_enabled(is_multi_line());
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if (is_multi_line()) {
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set_font(Gfx::FontDatabase::default_fixed_width_font());
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set_wrapping_mode(WrappingMode::WrapAtWords);
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m_search_banner = GUI::IncrementalSearchBanner::construct(*this);
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set_banner_widget(m_search_banner);
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}
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vertical_scrollbar().set_step(line_height());
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m_cursor = { 0, 0 };
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m_automatic_selection_scroll_timer = add<Core::Timer>(100, [this] {
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automatic_selection_scroll_timer_fired();
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});
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m_automatic_selection_scroll_timer->stop();
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create_actions();
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set_editing_engine(make<RegularEditingEngine>());
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}
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TextEditor::~TextEditor()
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{
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if (m_document)
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m_document->unregister_client(*this);
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}
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void TextEditor::create_actions()
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{
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m_undo_action = CommonActions::make_undo_action([&](auto&) { undo(); }, this);
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m_redo_action = CommonActions::make_redo_action([&](auto&) { redo(); }, this);
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m_undo_action->set_enabled(false);
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m_redo_action->set_enabled(false);
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m_cut_action = CommonActions::make_cut_action([&](auto&) { cut(); }, this);
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m_copy_action = CommonActions::make_copy_action([&](auto&) { copy(); }, this);
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m_cut_action->set_enabled(false);
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m_copy_action->set_enabled(false);
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m_paste_action = CommonActions::make_paste_action([&](auto&) { paste(); }, this);
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m_paste_action->set_enabled(is_editable() && Clipboard::the().fetch_mime_type().starts_with("text/"sv));
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if (is_multi_line()) {
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m_go_to_line_action = Action::create(
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"Go to line...", { Mod_Ctrl, Key_L }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/go-to.png"sv).release_value_but_fixme_should_propagate_errors(), [this](auto&) {
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DeprecatedString value;
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if (InputBox::show(window(), value, "Line:"sv, "Go to line"sv) == InputBox::ExecResult::OK) {
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auto line_target = value.to_uint();
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if (line_target.has_value()) {
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set_cursor_and_focus_line(line_target.value() - 1, 0);
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}
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}
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},
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this);
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}
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m_select_all_action = CommonActions::make_select_all_action([this](auto&) { select_all(); }, this);
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m_insert_emoji_action = CommonActions::make_insert_emoji_action([&](auto&) { insert_emoji(); }, this);
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}
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void TextEditor::set_text(StringView text, AllowCallback allow_callback)
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{
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m_selection.clear();
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document().set_text(text, allow_callback);
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update_content_size();
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recompute_all_visual_lines();
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if (is_single_line())
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set_cursor(0, line(0).length());
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else
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set_cursor(0, 0);
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did_update_selection();
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update();
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}
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void TextEditor::update_content_size()
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{
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int content_width = 0;
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int content_height = 0;
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for (auto& line : m_line_visual_data) {
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content_width = max(line.visual_rect.width(), content_width);
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content_height += line.visual_rect.height();
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}
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content_width += m_horizontal_content_padding * 2;
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if (is_right_text_alignment(m_text_alignment))
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content_width = max(frame_inner_rect().width(), content_width);
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set_content_size({ content_width, content_height });
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set_size_occupied_by_fixed_elements({ ruler_width() + gutter_width(), 0 });
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}
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TextPosition TextEditor::text_position_at_content_position(Gfx::IntPoint content_position) const
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{
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auto position = content_position;
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if (is_single_line() && icon())
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position.translate_by(-(icon_size() + icon_padding()), 0);
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size_t line_index = 0;
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if (position.y() >= 0) {
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if (is_wrapping_enabled()) {
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for (size_t i = 0; i < line_count(); ++i) {
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auto& rect = m_line_visual_data[i].visual_rect;
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if (position.y() >= rect.top() && position.y() <= rect.bottom()) {
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line_index = i;
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break;
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}
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if (position.y() > rect.bottom())
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line_index = line_count() - 1;
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}
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} else {
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line_index = (size_t)(position.y() / line_height());
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}
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line_index = max((size_t)0, min(line_index, line_count() - 1));
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}
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size_t column_index = 0;
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switch (m_text_alignment) {
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case Gfx::TextAlignment::CenterLeft:
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for_each_visual_line(line_index, [&](Gfx::IntRect const& rect, auto& view, size_t start_of_line, [[maybe_unused]] bool is_last_visual_line) {
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if (is_multi_line() && !rect.contains_vertically(position.y()) && !is_last_visual_line)
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return IterationDecision::Continue;
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column_index = start_of_line;
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if (position.x() <= 0) {
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// We're outside the text on the left side, put cursor at column 0 on this visual line.
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} else {
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int glyph_x = 0;
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size_t i = 0;
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for (; i < view.length(); ++i) {
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int advance = font().glyph_or_emoji_width(view.code_points()[i]) + font().glyph_spacing();
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if ((glyph_x + (advance / 2)) >= position.x())
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break;
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glyph_x += advance;
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}
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column_index += i;
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}
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return IterationDecision::Break;
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});
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break;
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case Gfx::TextAlignment::CenterRight:
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// FIXME: Support right-aligned line wrapping, I guess.
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VERIFY(!is_wrapping_enabled());
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column_index = (position.x() - content_x_for_position({ line_index, 0 }) + fixed_glyph_width() / 2) / fixed_glyph_width();
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break;
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default:
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VERIFY_NOT_REACHED();
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}
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column_index = max((size_t)0, min(column_index, line(line_index).length()));
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return { line_index, column_index };
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}
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TextPosition TextEditor::text_position_at(Gfx::IntPoint widget_position) const
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{
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auto content_position = widget_position;
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content_position.translate_by(horizontal_scrollbar().value(), vertical_scrollbar().value());
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content_position.translate_by(-(m_horizontal_content_padding + ruler_width() + gutter_width()), 0);
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content_position.translate_by(-frame_thickness(), -frame_thickness());
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content_position.translate_by(0, -height_occupied_by_banner_widget());
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return text_position_at_content_position(content_position);
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}
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void TextEditor::doubleclick_event(MouseEvent& event)
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{
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if (event.button() != MouseButton::Primary)
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return;
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if (is_displayonly())
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return;
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if (!current_line().can_select())
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return;
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rehighlight_if_needed();
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m_triple_click_timer.start();
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m_in_drag_select = false;
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auto position = text_position_at(event.position());
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if (m_substitution_code_point.has_value()) {
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// NOTE: If we substitute the code points, we don't want double clicking to only select a single word, since
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// whitespace isn't visible anymore.
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m_selection = document().range_for_entire_line(position.line());
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} else if (document().has_spans()) {
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for (auto& span : document().spans()) {
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if (span.range.contains(position)) {
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m_selection = span.range;
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break;
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}
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}
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} else {
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m_selection.set_start(document().first_word_break_before(position, false));
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m_selection.set_end(document().first_word_break_after(position));
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}
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set_cursor(m_selection.end());
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update();
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did_update_selection();
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}
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void TextEditor::mousedown_event(MouseEvent& event)
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{
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if (event.button() != MouseButton::Primary) {
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return;
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}
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if (on_mousedown)
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on_mousedown();
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if (is_displayonly())
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return;
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if (m_triple_click_timer.is_valid() && m_triple_click_timer.elapsed() < 250) {
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m_triple_click_timer = Core::ElapsedTimer();
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select_current_line();
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return;
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}
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if (event.modifiers() & Mod_Shift) {
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if (!has_selection())
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m_selection.set(m_cursor, {});
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} else {
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m_selection.clear();
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}
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m_in_drag_select = true;
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m_automatic_selection_scroll_timer->start();
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set_cursor(text_position_at(event.position()));
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if (!(event.modifiers() & Mod_Shift)) {
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if (!has_selection())
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m_selection.set(m_cursor, {});
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}
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if (m_selection.start().is_valid() && m_selection.start() != m_cursor)
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m_selection.set_end(m_cursor);
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// FIXME: Only update the relevant rects.
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update();
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did_update_selection();
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}
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void TextEditor::mouseup_event(MouseEvent& event)
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{
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if (event.button() == MouseButton::Primary) {
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if (m_in_drag_select) {
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m_in_drag_select = false;
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}
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return;
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}
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}
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void TextEditor::mousemove_event(MouseEvent& event)
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{
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m_last_mousemove_position = event.position();
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if (m_in_drag_select && (rect().contains(event.position()) || !m_automatic_selection_scroll_timer->is_active())) {
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set_cursor(text_position_at(event.position()));
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m_selection.set_end(m_cursor);
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did_update_selection();
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update();
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return;
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}
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if (m_ruler_visible && (ruler_rect_in_inner_coordinates().contains(event.position()))) {
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set_override_cursor(Gfx::StandardCursor::None);
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} else {
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set_editing_cursor();
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}
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}
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void TextEditor::select_current_line()
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{
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m_selection = document().range_for_entire_line(m_cursor.line());
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set_cursor(m_selection.end());
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update();
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did_update_selection();
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}
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void TextEditor::automatic_selection_scroll_timer_fired()
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{
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if (!m_in_drag_select) {
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m_automatic_selection_scroll_timer->stop();
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return;
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}
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set_cursor(text_position_at(m_last_mousemove_position));
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m_selection.set_end(m_cursor);
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did_update_selection();
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update();
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}
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int TextEditor::ruler_width() const
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{
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if (!m_ruler_visible)
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return 0;
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int line_count_digits = static_cast<int>(log10(line_count())) + 1;
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auto padding = 5 + (font().is_fixed_width() ? 1 : (line_count_digits - (line_count() < 10 ? -1 : 0)));
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auto widest_numeral = font().bold_variant().glyph_width('4');
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return line_count() < 10 ? (line_count_digits + 1) * widest_numeral + padding : line_count_digits * widest_numeral + padding;
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}
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int TextEditor::gutter_width() const
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{
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if (!m_gutter_visible)
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return 0;
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return line_height(); // square gutter
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}
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Gfx::IntRect TextEditor::ruler_content_rect(size_t line_index) const
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{
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if (!m_ruler_visible)
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return {};
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return {
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0 - ruler_width() + horizontal_scrollbar().value(),
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line_content_rect(line_index).y(),
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ruler_width(),
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line_content_rect(line_index).height()
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};
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}
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Gfx::IntRect TextEditor::gutter_content_rect(size_t line_index) const
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{
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if (!m_gutter_visible)
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return {};
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return {
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0 - ruler_width() - gutter_width() + horizontal_scrollbar().value(),
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line_content_rect(line_index).y(),
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gutter_width(),
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line_content_rect(line_index).height()
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};
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}
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Gfx::IntRect TextEditor::ruler_rect_in_inner_coordinates() const
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{
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return { gutter_width(), 0, ruler_width(), widget_inner_rect().height() };
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}
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Gfx::IntRect TextEditor::gutter_rect_in_inner_coordinates() const
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{
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return { 0, 0, gutter_width(), widget_inner_rect().height() };
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}
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Gfx::IntRect TextEditor::visible_text_rect_in_inner_coordinates() const
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{
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return {
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m_horizontal_content_padding + (m_ruler_visible ? (ruler_rect_in_inner_coordinates().right() + 1) : 0),
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0,
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frame_inner_rect().width() - (m_horizontal_content_padding * 2) - width_occupied_by_vertical_scrollbar() - ruler_width(),
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frame_inner_rect().height() - height_occupied_by_horizontal_scrollbar()
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};
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}
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void TextEditor::paint_event(PaintEvent& event)
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{
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Color widget_background_color = palette().color(is_enabled() ? background_role() : Gfx::ColorRole::Window);
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rehighlight_if_needed();
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Frame::paint_event(event);
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Painter painter(*this);
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painter.add_clip_rect(widget_inner_rect());
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painter.add_clip_rect(event.rect());
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painter.fill_rect(event.rect(), widget_background_color);
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// NOTE: This lambda and TextEditor::text_width_for_font() are used to substitute all glyphs with m_substitution_code_point if necessary.
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// Painter::draw_text() and Gfx::Font::width() should not be called directly, but using this lambda and TextEditor::text_width_for_font().
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auto draw_text = [&](Gfx::IntRect const& rect, auto const& raw_text, Gfx::Font const& font, Gfx::TextAlignment alignment, Gfx::TextAttributes attributes, bool substitute = true) {
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if (m_substitution_code_point.has_value() && substitute) {
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painter.draw_text(rect, substitution_code_point_view(raw_text.length()), font, alignment, attributes.color);
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} else {
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painter.draw_text(rect, raw_text, font, alignment, attributes.color);
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}
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if (attributes.underline) {
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if (attributes.underline_style == Gfx::TextAttributes::UnderlineStyle::Solid)
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painter.draw_line(rect.bottom_left().translated(0, 1), rect.bottom_right().translated(0, 1), attributes.underline_color.value_or(attributes.color));
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if (attributes.underline_style == Gfx::TextAttributes::UnderlineStyle::Wavy)
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painter.draw_triangle_wave(rect.bottom_left().translated(0, 1), rect.bottom_right().translated(0, 1), attributes.underline_color.value_or(attributes.color), 2);
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}
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};
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if (is_displayonly() && is_focused()) {
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Gfx::IntRect display_rect {
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widget_inner_rect().x() + 1,
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widget_inner_rect().y() + 1,
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widget_inner_rect().width() - 2,
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widget_inner_rect().height() - 2
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};
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painter.fill_rect(display_rect, palette().selection());
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}
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painter.translate(frame_thickness(), frame_thickness());
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painter.translate(0, height_occupied_by_banner_widget());
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if (!is_multi_line() && m_icon) {
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Gfx::IntRect icon_rect { icon_padding(), 1, icon_size(), icon_size() };
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painter.draw_scaled_bitmap(icon_rect, *m_icon, m_icon->rect());
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}
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if (m_gutter_visible) {
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auto gutter_rect = gutter_rect_in_inner_coordinates();
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painter.fill_rect(gutter_rect, palette().gutter());
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if (!m_ruler_visible)
|
|
painter.draw_line(gutter_rect.top_right(), gutter_rect.bottom_right(), palette().gutter_border());
|
|
}
|
|
|
|
if (m_ruler_visible) {
|
|
auto ruler_rect = ruler_rect_in_inner_coordinates();
|
|
painter.fill_rect(ruler_rect, palette().ruler());
|
|
painter.draw_line(ruler_rect.top_right(), ruler_rect.bottom_right(), palette().ruler_border());
|
|
}
|
|
|
|
auto horizontal_scrollbar_value = horizontal_scrollbar().value();
|
|
painter.translate(-horizontal_scrollbar_value, -vertical_scrollbar().value());
|
|
if (m_icon && horizontal_scrollbar_value > 0)
|
|
painter.translate(min(icon_size() + icon_padding(), horizontal_scrollbar_value), 0);
|
|
painter.translate(gutter_width(), 0);
|
|
painter.translate(ruler_width(), 0);
|
|
|
|
size_t first_visible_line = text_position_at(event.rect().top_left()).line();
|
|
size_t last_visible_line = text_position_at(event.rect().bottom_right()).line();
|
|
|
|
auto selection = normalized_selection();
|
|
bool has_selection = selection.is_valid();
|
|
|
|
if (m_ruler_visible) {
|
|
for (size_t i = first_visible_line; i <= last_visible_line; ++i) {
|
|
bool is_current_line = i == m_cursor.line();
|
|
auto ruler_line_rect = ruler_content_rect(i);
|
|
// NOTE: Shrink the rectangle to be only on the first visual line.
|
|
auto const line_height = font().preferred_line_height();
|
|
if (ruler_line_rect.height() > line_height)
|
|
ruler_line_rect.set_height(line_height);
|
|
// NOTE: Use Painter::draw_text() directly here, as we want to always draw the line numbers in clear text.
|
|
painter.draw_text(
|
|
ruler_line_rect.shrunken(2, 0),
|
|
DeprecatedString::number(i + 1),
|
|
is_current_line ? font().bold_variant() : font(),
|
|
Gfx::TextAlignment::CenterRight,
|
|
is_current_line ? palette().ruler_active_text() : palette().ruler_inactive_text());
|
|
}
|
|
}
|
|
|
|
auto gutter_ruler_width = gutter_width() + ruler_width();
|
|
Gfx::IntRect text_clip_rect { 0, 0, widget_inner_rect().width() - gutter_ruler_width, widget_inner_rect().height() };
|
|
text_clip_rect.translate_by(horizontal_scrollbar().value(), vertical_scrollbar().value());
|
|
painter.add_clip_rect(text_clip_rect);
|
|
|
|
size_t span_index = 0;
|
|
if (document().has_spans()) {
|
|
for (;;) {
|
|
if (span_index >= document().spans().size() || document().spans()[span_index].range.end().line() >= first_visible_line) {
|
|
break;
|
|
}
|
|
++span_index;
|
|
}
|
|
}
|
|
|
|
for (size_t line_index = first_visible_line; line_index <= last_visible_line; ++line_index) {
|
|
auto& line = this->line(line_index);
|
|
|
|
bool physical_line_has_selection = has_selection && line_index >= selection.start().line() && line_index <= selection.end().line();
|
|
size_t first_visual_line_with_selection = 0;
|
|
size_t last_visual_line_with_selection = 0;
|
|
if (physical_line_has_selection) {
|
|
if (selection.start().line() < line_index)
|
|
first_visual_line_with_selection = 0;
|
|
else
|
|
first_visual_line_with_selection = visual_line_containing(line_index, selection.start().column());
|
|
|
|
if (selection.end().line() > line_index)
|
|
last_visual_line_with_selection = m_line_visual_data[line_index].visual_line_breaks.size();
|
|
else
|
|
last_visual_line_with_selection = visual_line_containing(line_index, selection.end().column());
|
|
}
|
|
|
|
size_t selection_start_column_within_line = selection.start().line() == line_index ? selection.start().column() : 0;
|
|
size_t selection_end_column_within_line = selection.end().line() == line_index ? selection.end().column() : line.length();
|
|
|
|
size_t visual_line_index = 0;
|
|
size_t last_start_of_visual_line = 0;
|
|
Optional<size_t> multiline_trailing_space_offset {};
|
|
for_each_visual_line(line_index, [&](Gfx::IntRect const& visual_line_rect, auto& visual_line_text, size_t start_of_visual_line, [[maybe_unused]] bool is_last_visual_line) {
|
|
ScopeGuard update_last_start_of_visual_line { [&]() { last_start_of_visual_line = start_of_visual_line; } };
|
|
|
|
if (is_focused() && is_multi_line() && line_index == m_cursor.line() && is_cursor_line_highlighted()) {
|
|
Gfx::IntRect visible_content_line_rect {
|
|
visible_content_rect().x(),
|
|
visual_line_rect.y(),
|
|
widget_inner_rect().width() - gutter_ruler_width,
|
|
line_height()
|
|
};
|
|
painter.fill_rect(visible_content_line_rect, widget_background_color.darkened(0.9f));
|
|
}
|
|
if constexpr (TEXTEDITOR_DEBUG)
|
|
painter.draw_rect(visual_line_rect, Color::Cyan);
|
|
|
|
if (!placeholder().is_empty() && document().is_empty() && line_index == 0) {
|
|
auto line_rect = visual_line_rect;
|
|
line_rect.set_width(text_width_for_font(placeholder(), font()));
|
|
draw_text(line_rect, placeholder(), font(), m_text_alignment, { palette().color(Gfx::ColorRole::PlaceholderText) }, false);
|
|
} else if (!document().has_spans()) {
|
|
// Fast-path for plain text
|
|
auto color = palette().color(is_enabled() ? foreground_role() : Gfx::ColorRole::DisabledText);
|
|
if (is_displayonly() && is_focused())
|
|
color = palette().color(is_enabled() ? Gfx::ColorRole::SelectionText : Gfx::ColorRole::DisabledText);
|
|
draw_text(visual_line_rect, visual_line_text, font(), m_text_alignment, { color });
|
|
} else {
|
|
auto unspanned_color = palette().color(is_enabled() ? foreground_role() : Gfx::ColorRole::DisabledText);
|
|
if (is_displayonly() && is_focused())
|
|
unspanned_color = palette().color(is_enabled() ? Gfx::ColorRole::SelectionText : Gfx::ColorRole::DisabledText);
|
|
RefPtr<Gfx::Font> unspanned_font = this->font();
|
|
|
|
size_t next_column = 0;
|
|
Gfx::IntRect span_rect = { visual_line_rect.location(), { 0, line_height() } };
|
|
|
|
auto draw_text_helper = [&](size_t start, size_t end, RefPtr<Gfx::Font>& font, Gfx::TextAttributes text_attributes) {
|
|
size_t length = end - start;
|
|
if (length == 0)
|
|
return;
|
|
auto text = visual_line_text.substring_view(start, length);
|
|
span_rect.set_width(font->width(text));
|
|
if (text_attributes.background_color.has_value()) {
|
|
painter.fill_rect(span_rect, text_attributes.background_color.value());
|
|
}
|
|
draw_text(span_rect, text, *font, m_text_alignment, text_attributes);
|
|
span_rect.translate_by(span_rect.width(), 0);
|
|
};
|
|
for (;;) {
|
|
if (span_index >= document().spans().size()) {
|
|
break;
|
|
}
|
|
auto& span = document().spans()[span_index];
|
|
if (!span.range.is_valid()) {
|
|
++span_index;
|
|
continue;
|
|
}
|
|
if (span.range.end().line() < line_index) {
|
|
dbgln_if(TEXTEDITOR_DEBUG, "spans not sorted (span end {}:{} is before current line {}) => ignoring", span.range.end().line(), span.range.end().column(), line_index);
|
|
++span_index;
|
|
continue;
|
|
}
|
|
if (span.range.start().line() > line_index
|
|
|| (span.range.start().line() == line_index && span.range.start().column() >= start_of_visual_line + visual_line_text.length())) {
|
|
// no more spans in this line, moving on
|
|
break;
|
|
}
|
|
if (span.range.start().line() == span.range.end().line() && span.range.end().column() < span.range.start().column()) {
|
|
dbgln_if(TEXTEDITOR_DEBUG, "span from {}:{} to {}:{} has negative length => ignoring", span.range.start().line(), span.range.start().column(), span.range.end().line(), span.range.end().column());
|
|
++span_index;
|
|
continue;
|
|
}
|
|
if (span.range.end().line() == line_index && span.range.end().column() < start_of_visual_line + next_column) {
|
|
dbgln_if(TEXTEDITOR_DEBUG, "spans not sorted (span end {}:{} is before current position {}:{}) => ignoring",
|
|
span.range.end().line(), span.range.end().column(), line_index, start_of_visual_line + next_column);
|
|
++span_index;
|
|
continue;
|
|
}
|
|
size_t span_start;
|
|
if (span.range.start().line() < line_index || span.range.start().column() < start_of_visual_line) {
|
|
span_start = 0;
|
|
} else {
|
|
span_start = span.range.start().column() - start_of_visual_line;
|
|
}
|
|
if (span_start < next_column) {
|
|
dbgln_if(TEXTEDITOR_DEBUG, "span started before the current position, maybe two spans overlap? (span start {} is before current position {}) => ignoring", span_start, next_column);
|
|
++span_index;
|
|
continue;
|
|
}
|
|
size_t span_end;
|
|
bool span_consumned;
|
|
if (span.range.end().line() > line_index || span.range.end().column() > start_of_visual_line + visual_line_text.length()) {
|
|
span_end = visual_line_text.length();
|
|
span_consumned = false;
|
|
} else {
|
|
span_end = span.range.end().column() - start_of_visual_line;
|
|
span_consumned = true;
|
|
}
|
|
|
|
if (span_start != next_column) {
|
|
// draw unspanned text between spans
|
|
draw_text_helper(next_column, span_start, unspanned_font, { unspanned_color });
|
|
}
|
|
auto font = unspanned_font;
|
|
if (span.attributes.bold) {
|
|
if (auto bold_font = Gfx::FontDatabase::the().get(font->family(), font->presentation_size(), 700, 0))
|
|
font = bold_font;
|
|
}
|
|
draw_text_helper(span_start, span_end, font, span.attributes);
|
|
next_column = span_end;
|
|
if (!span_consumned) {
|
|
// continue with same span on next line
|
|
break;
|
|
} else {
|
|
++span_index;
|
|
}
|
|
}
|
|
// draw unspanned text after last span
|
|
if (next_column < visual_line_text.length()) {
|
|
draw_text_helper(next_column, visual_line_text.length(), unspanned_font, { unspanned_color });
|
|
}
|
|
// consume all spans that should end this line
|
|
// this is necessary since the spans can include the new line character
|
|
while (is_last_visual_line && span_index < document().spans().size()) {
|
|
auto& span = document().spans()[span_index];
|
|
if (span.range.end().line() == line_index) {
|
|
++span_index;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (m_visualize_trailing_whitespace && line.ends_in_whitespace()) {
|
|
size_t physical_column;
|
|
auto last_non_whitespace_column = line.last_non_whitespace_column();
|
|
if (last_non_whitespace_column.has_value())
|
|
physical_column = last_non_whitespace_column.value() + 1;
|
|
else
|
|
physical_column = 0;
|
|
size_t end_of_visual_line = (start_of_visual_line + visual_line_text.length());
|
|
if (physical_column < end_of_visual_line) {
|
|
physical_column -= multiline_trailing_space_offset.value_or(0);
|
|
|
|
size_t visual_column = physical_column > start_of_visual_line ? (physical_column - start_of_visual_line) : 0;
|
|
|
|
Gfx::IntRect whitespace_rect {
|
|
content_x_for_position({ line_index, physical_column }),
|
|
visual_line_rect.y(),
|
|
text_width_for_font(visual_line_text.substring_view(visual_column, visual_line_text.length() - visual_column), font()),
|
|
visual_line_rect.height()
|
|
};
|
|
painter.fill_rect_with_dither_pattern(whitespace_rect, Color(), Color(255, 192, 192));
|
|
|
|
if (!multiline_trailing_space_offset.has_value())
|
|
multiline_trailing_space_offset = physical_column - last_start_of_visual_line;
|
|
}
|
|
}
|
|
if (m_visualize_leading_whitespace && line.leading_spaces() > 0) {
|
|
size_t physical_column = line.leading_spaces();
|
|
if (start_of_visual_line < physical_column) {
|
|
size_t end_of_leading_whitespace = min(physical_column - start_of_visual_line, visual_line_text.length());
|
|
Gfx::IntRect whitespace_rect {
|
|
content_x_for_position({ line_index, start_of_visual_line }),
|
|
visual_line_rect.y(),
|
|
text_width_for_font(visual_line_text.substring_view(0, end_of_leading_whitespace), font()),
|
|
visual_line_rect.height()
|
|
};
|
|
painter.fill_rect_with_dither_pattern(whitespace_rect, Color(), Color(192, 255, 192));
|
|
}
|
|
}
|
|
|
|
if (physical_line_has_selection && window()->focused_widget() == this) {
|
|
size_t const start_of_selection_within_visual_line = (size_t)max(0, (int)selection_start_column_within_line - (int)start_of_visual_line);
|
|
size_t const end_of_selection_within_visual_line = min(selection_end_column_within_line - start_of_visual_line, visual_line_text.length());
|
|
|
|
bool current_visual_line_has_selection = start_of_selection_within_visual_line != end_of_selection_within_visual_line
|
|
&& ((line_index != selection.start().line() && line_index != selection.end().line())
|
|
|| (visual_line_index >= first_visual_line_with_selection && visual_line_index <= last_visual_line_with_selection));
|
|
if (current_visual_line_has_selection) {
|
|
bool selection_begins_on_current_visual_line = visual_line_index == first_visual_line_with_selection;
|
|
bool selection_ends_on_current_visual_line = visual_line_index == last_visual_line_with_selection;
|
|
|
|
int selection_left = selection_begins_on_current_visual_line
|
|
? content_x_for_position({ line_index, (size_t)selection_start_column_within_line })
|
|
: m_horizontal_content_padding;
|
|
|
|
int selection_right = selection_ends_on_current_visual_line
|
|
? content_x_for_position({ line_index, (size_t)selection_end_column_within_line })
|
|
: visual_line_rect.right() + 1;
|
|
|
|
Gfx::IntRect selection_rect {
|
|
selection_left,
|
|
visual_line_rect.y(),
|
|
selection_right - selection_left,
|
|
visual_line_rect.height()
|
|
};
|
|
|
|
Color background_color = is_focused() ? palette().selection() : palette().inactive_selection();
|
|
Color text_color = is_focused() ? palette().selection_text() : palette().inactive_selection_text();
|
|
|
|
painter.fill_rect(selection_rect, background_color);
|
|
|
|
if (visual_line_text.code_points()) {
|
|
Utf32View visual_selected_text {
|
|
visual_line_text.code_points() + start_of_selection_within_visual_line,
|
|
end_of_selection_within_visual_line - start_of_selection_within_visual_line
|
|
};
|
|
|
|
draw_text(selection_rect, visual_selected_text, font(), Gfx::TextAlignment::CenterLeft, { text_color });
|
|
}
|
|
}
|
|
}
|
|
|
|
++visual_line_index;
|
|
return IterationDecision::Continue;
|
|
});
|
|
}
|
|
|
|
if (is_enabled() && is_focused() && !focus_preempted() && m_cursor_state && !is_displayonly())
|
|
painter.fill_rect(cursor_content_rect(), palette().text_cursor());
|
|
}
|
|
|
|
Optional<UISize> TextEditor::calculated_min_size() const
|
|
{
|
|
if (is_multi_line())
|
|
return AbstractScrollableWidget::calculated_min_size();
|
|
auto m = content_margins();
|
|
return UISize { m.left() + m.right(), m.top() + m.bottom() };
|
|
}
|
|
|
|
void TextEditor::select_all()
|
|
{
|
|
TextPosition start_of_document { 0, 0 };
|
|
TextPosition end_of_document { line_count() - 1, line(line_count() - 1).length() };
|
|
m_selection.set(end_of_document, start_of_document);
|
|
did_update_selection();
|
|
set_cursor(start_of_document);
|
|
update();
|
|
}
|
|
|
|
void TextEditor::insert_emoji()
|
|
{
|
|
if (!on_emoji_input || window()->blocks_emoji_input())
|
|
return;
|
|
|
|
auto emoji_input_dialog = EmojiInputDialog::construct(window());
|
|
if (emoji_input_dialog->exec() != EmojiInputDialog::ExecResult::OK)
|
|
return;
|
|
|
|
auto emoji_code_point = emoji_input_dialog->selected_emoji_text();
|
|
insert_at_cursor_or_replace_selection(emoji_code_point);
|
|
}
|
|
|
|
void TextEditor::set_or_clear_emoji_input_callback()
|
|
{
|
|
switch (m_mode) {
|
|
case Editable:
|
|
on_emoji_input = [this](auto emoji) {
|
|
insert_at_cursor_or_replace_selection(emoji);
|
|
};
|
|
break;
|
|
|
|
case DisplayOnly:
|
|
case ReadOnly:
|
|
on_emoji_input = {};
|
|
break;
|
|
|
|
default:
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
}
|
|
|
|
void TextEditor::keydown_event(KeyEvent& event)
|
|
{
|
|
if (!is_editable() && event.key() == KeyCode::Key_Tab)
|
|
return AbstractScrollableWidget::keydown_event(event);
|
|
|
|
if (m_autocomplete_box && m_autocomplete_box->is_visible() && (event.key() == KeyCode::Key_Return || event.key() == KeyCode::Key_Tab)) {
|
|
TemporaryChange change { m_should_keep_autocomplete_box, true };
|
|
if (m_autocomplete_box->apply_suggestion() == CodeComprehension::AutocompleteResultEntry::HideAutocompleteAfterApplying::Yes)
|
|
hide_autocomplete();
|
|
else
|
|
try_update_autocomplete();
|
|
return;
|
|
}
|
|
|
|
if (m_autocomplete_box && m_autocomplete_box->is_visible() && event.key() == KeyCode::Key_Escape) {
|
|
hide_autocomplete();
|
|
return;
|
|
}
|
|
|
|
if (m_autocomplete_box && m_autocomplete_box->is_visible() && event.key() == KeyCode::Key_Up) {
|
|
m_autocomplete_box->previous_suggestion();
|
|
return;
|
|
}
|
|
|
|
if (m_autocomplete_box && m_autocomplete_box->is_visible() && event.key() == KeyCode::Key_Down) {
|
|
m_autocomplete_box->next_suggestion();
|
|
return;
|
|
}
|
|
|
|
if (is_single_line()) {
|
|
if (event.key() == KeyCode::Key_Tab)
|
|
return AbstractScrollableWidget::keydown_event(event);
|
|
|
|
if (event.modifiers() == KeyModifier::Mod_Shift && event.key() == KeyCode::Key_Return) {
|
|
if (on_shift_return_pressed)
|
|
on_shift_return_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.modifiers() == KeyModifier::Mod_Ctrl && event.key() == KeyCode::Key_Return) {
|
|
if (on_ctrl_return_pressed)
|
|
on_ctrl_return_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_Return) {
|
|
if (on_return_pressed)
|
|
on_return_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_Up) {
|
|
if (on_up_pressed)
|
|
on_up_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_Down) {
|
|
if (on_down_pressed)
|
|
on_down_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_PageUp) {
|
|
if (on_pageup_pressed)
|
|
on_pageup_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_PageDown) {
|
|
if (on_pagedown_pressed)
|
|
on_pagedown_pressed();
|
|
return;
|
|
}
|
|
|
|
} else if (!is_multi_line()) {
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
ArmedScopeGuard update_autocomplete { [&] {
|
|
try_update_autocomplete();
|
|
} };
|
|
|
|
if (is_multi_line() && !event.shift() && !event.alt() && event.ctrl() && event.key() == KeyCode::Key_Space) {
|
|
if (m_autocomplete_provider) {
|
|
try_show_autocomplete(UserRequestedAutocomplete::Yes);
|
|
update_autocomplete.disarm();
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (is_multi_line() && !event.shift() && !event.alt() && event.ctrl() && event.key() == KeyCode::Key_F) {
|
|
m_search_banner->show();
|
|
return;
|
|
}
|
|
|
|
if (m_editing_engine->on_key(event))
|
|
return;
|
|
|
|
if (event.key() == KeyCode::Key_Escape) {
|
|
if (on_escape_pressed)
|
|
on_escape_pressed();
|
|
return;
|
|
}
|
|
|
|
if (event.modifiers() == Mod_Shift && event.key() == KeyCode::Key_Delete) {
|
|
if (m_autocomplete_box)
|
|
hide_autocomplete();
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_Tab) {
|
|
if (has_selection()) {
|
|
if (event.modifiers() == Mod_Shift) {
|
|
unindent_selection();
|
|
return;
|
|
}
|
|
if (is_indenting_selection()) {
|
|
indent_selection();
|
|
return;
|
|
}
|
|
} else {
|
|
if (event.modifiers() == Mod_Shift) {
|
|
unindent_line();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_Delete) {
|
|
if (!is_editable())
|
|
return;
|
|
if (m_autocomplete_box)
|
|
hide_autocomplete();
|
|
if (has_selection()) {
|
|
delete_selection();
|
|
did_update_selection();
|
|
return;
|
|
}
|
|
|
|
if (m_cursor.column() < current_line().length()) {
|
|
// Delete within line
|
|
int erase_count = 1;
|
|
if (event.modifiers() == Mod_Ctrl) {
|
|
auto word_break_pos = document().first_word_break_after(m_cursor);
|
|
erase_count = word_break_pos.column() - m_cursor.column();
|
|
}
|
|
TextRange erased_range(m_cursor, { m_cursor.line(), m_cursor.column() + erase_count });
|
|
execute<RemoveTextCommand>(document().text_in_range(erased_range), erased_range);
|
|
return;
|
|
}
|
|
if (m_cursor.column() == current_line().length() && m_cursor.line() != line_count() - 1) {
|
|
// Delete at end of line; merge with next line
|
|
size_t erase_count = 0;
|
|
if (event.modifiers() == Mod_Ctrl) {
|
|
erase_count = document().first_word_break_after({ m_cursor.line() + 1, 0 }).column();
|
|
}
|
|
TextRange erased_range(m_cursor, { m_cursor.line() + 1, erase_count });
|
|
execute<RemoveTextCommand>(document().text_in_range(erased_range), erased_range);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (event.key() == KeyCode::Key_Backspace) {
|
|
if (!is_editable())
|
|
return;
|
|
if (m_autocomplete_box)
|
|
hide_autocomplete();
|
|
if (has_selection()) {
|
|
delete_selection();
|
|
did_update_selection();
|
|
return;
|
|
}
|
|
if (m_cursor.column() > 0) {
|
|
int erase_count = 1;
|
|
if (event.modifiers() == Mod_Ctrl) {
|
|
auto word_break_pos = document().first_word_break_before(m_cursor, true);
|
|
erase_count = m_cursor.column() - word_break_pos.column();
|
|
} else if (current_line().first_non_whitespace_column() >= m_cursor.column()) {
|
|
int new_column;
|
|
if (m_cursor.column() % m_soft_tab_width == 0)
|
|
new_column = m_cursor.column() - m_soft_tab_width;
|
|
else
|
|
new_column = (m_cursor.column() / m_soft_tab_width) * m_soft_tab_width;
|
|
erase_count = m_cursor.column() - new_column;
|
|
}
|
|
|
|
// Backspace within line
|
|
TextRange erased_range({ m_cursor.line(), m_cursor.column() - erase_count }, m_cursor);
|
|
auto erased_text = document().text_in_range(erased_range);
|
|
execute<RemoveTextCommand>(erased_text, erased_range);
|
|
return;
|
|
}
|
|
if (m_cursor.column() == 0 && m_cursor.line() != 0) {
|
|
// Backspace at column 0; merge with previous line
|
|
size_t previous_length = line(m_cursor.line() - 1).length();
|
|
TextRange erased_range({ m_cursor.line() - 1, previous_length }, m_cursor);
|
|
execute<RemoveTextCommand>("\n", erased_range);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
// AltGr is emulated as Ctrl+Alt; if Ctrl is set check if it's not for AltGr
|
|
if ((!event.ctrl() || event.altgr()) && !event.alt() && event.code_point() != 0) {
|
|
TemporaryChange change { m_should_keep_autocomplete_box, true };
|
|
add_code_point(event.code_point());
|
|
return;
|
|
}
|
|
|
|
if (event.ctrl() && event.key() == KeyCode::Key_Slash) {
|
|
if (m_highlighter != nullptr) {
|
|
auto prefix = m_highlighter->comment_prefix().value_or(""sv);
|
|
auto suffix = m_highlighter->comment_suffix().value_or(""sv);
|
|
auto range = has_selection() ? selection().normalized() : TextRange { { m_cursor.line(), m_cursor.column() }, { m_cursor.line(), m_cursor.column() } };
|
|
|
|
auto is_already_commented = true;
|
|
for (size_t i = range.start().line(); i <= range.end().line(); i++) {
|
|
auto text = m_document->line(i).to_utf8().trim_whitespace();
|
|
if (!(text.starts_with(prefix) && text.ends_with(suffix))) {
|
|
is_already_commented = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (is_already_commented)
|
|
execute<UncommentSelection>(prefix, suffix, range);
|
|
else
|
|
execute<CommentSelection>(prefix, suffix, range);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
event.ignore();
|
|
}
|
|
|
|
bool TextEditor::is_indenting_selection()
|
|
{
|
|
auto const selection_start = m_selection.start() > m_selection.end() ? m_selection.end() : m_selection.start();
|
|
auto const selection_end = m_selection.end() > m_selection.start() ? m_selection.end() : m_selection.start();
|
|
auto const whole_line_selected = selection_end.column() - selection_start.column() >= current_line().length() - current_line().first_non_whitespace_column();
|
|
auto const on_same_line = selection_start.line() == selection_end.line();
|
|
|
|
if (has_selection() && (whole_line_selected || !on_same_line)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void TextEditor::indent_selection()
|
|
{
|
|
auto const selection_start = m_selection.start() > m_selection.end() ? m_selection.end() : m_selection.start();
|
|
auto const selection_end = m_selection.end() > m_selection.start() ? m_selection.end() : m_selection.start();
|
|
|
|
if (is_indenting_selection()) {
|
|
execute<IndentSelection>(m_soft_tab_width, TextRange(selection_start, selection_end));
|
|
m_selection.set_start({ selection_start.line(), selection_start.column() + m_soft_tab_width });
|
|
m_selection.set_end({ selection_end.line(), selection_end.column() + m_soft_tab_width });
|
|
set_cursor({ m_cursor.line(), m_cursor.column() + m_soft_tab_width });
|
|
}
|
|
}
|
|
|
|
void TextEditor::unindent_selection()
|
|
{
|
|
auto const selection_start = m_selection.start() > m_selection.end() ? m_selection.end() : m_selection.start();
|
|
auto const selection_end = m_selection.end() > m_selection.start() ? m_selection.end() : m_selection.start();
|
|
|
|
if (current_line().first_non_whitespace_column() != 0) {
|
|
if (current_line().first_non_whitespace_column() > m_soft_tab_width && selection_start.column() != 0) {
|
|
m_selection.set_start({ selection_start.line(), selection_start.column() - m_soft_tab_width });
|
|
m_selection.set_end({ selection_end.line(), selection_end.column() - m_soft_tab_width });
|
|
} else if (selection_start.column() != 0) {
|
|
m_selection.set_start({ selection_start.line(), selection_start.column() - current_line().leading_spaces() });
|
|
m_selection.set_end({ selection_end.line(), selection_end.column() - current_line().leading_spaces() });
|
|
}
|
|
execute<UnindentSelection>(m_soft_tab_width, TextRange(selection_start, selection_end));
|
|
}
|
|
}
|
|
|
|
void TextEditor::unindent_line()
|
|
{
|
|
if (current_line().first_non_whitespace_column() != 0) {
|
|
auto const unindent_size = current_line().leading_spaces() < m_soft_tab_width ? current_line().leading_spaces() : m_soft_tab_width;
|
|
auto const temp_column = m_cursor.column();
|
|
|
|
execute<UnindentSelection>(unindent_size, TextRange({ m_cursor.line(), 0 }, { m_cursor.line(), line(m_cursor.line()).length() }));
|
|
|
|
set_cursor({ m_cursor.line(), temp_column <= unindent_size ? 0 : temp_column - unindent_size });
|
|
}
|
|
}
|
|
|
|
void TextEditor::delete_previous_word()
|
|
{
|
|
TextRange to_erase(document().first_word_before(m_cursor, true), m_cursor);
|
|
execute<RemoveTextCommand>(document().text_in_range(to_erase), to_erase);
|
|
}
|
|
|
|
void TextEditor::delete_current_line()
|
|
{
|
|
if (has_selection())
|
|
return delete_selection();
|
|
|
|
TextPosition start;
|
|
TextPosition end;
|
|
if (m_cursor.line() == 0 && line_count() == 1) {
|
|
start = { 0, 0 };
|
|
end = { 0, line(0).length() };
|
|
} else if (m_cursor.line() == line_count() - 1) {
|
|
start = { m_cursor.line() - 1, line(m_cursor.line() - 1).length() };
|
|
end = { m_cursor.line(), line(m_cursor.line()).length() };
|
|
} else {
|
|
start = { m_cursor.line(), 0 };
|
|
end = { m_cursor.line() + 1, 0 };
|
|
}
|
|
|
|
TextRange erased_range(start, end);
|
|
execute<RemoveTextCommand>(document().text_in_range(erased_range), erased_range);
|
|
}
|
|
|
|
void TextEditor::delete_previous_char()
|
|
{
|
|
if (!is_editable())
|
|
return;
|
|
|
|
if (has_selection())
|
|
return delete_selection();
|
|
|
|
TextRange to_erase({ m_cursor.line(), m_cursor.column() - 1 }, m_cursor);
|
|
if (m_cursor.column() == 0 && m_cursor.line() != 0) {
|
|
size_t prev_line_len = line(m_cursor.line() - 1).length();
|
|
to_erase.set_start({ m_cursor.line() - 1, prev_line_len });
|
|
}
|
|
|
|
execute<RemoveTextCommand>(document().text_in_range(to_erase), to_erase);
|
|
}
|
|
|
|
void TextEditor::delete_from_line_start_to_cursor()
|
|
{
|
|
TextPosition start(m_cursor.line(), current_line().first_non_whitespace_column());
|
|
TextRange to_erase(start, m_cursor);
|
|
execute<RemoveTextCommand>(document().text_in_range(to_erase), to_erase);
|
|
}
|
|
|
|
void TextEditor::do_delete()
|
|
{
|
|
if (!is_editable())
|
|
return;
|
|
|
|
if (has_selection())
|
|
return delete_selection();
|
|
|
|
if (m_cursor.column() < current_line().length()) {
|
|
// Delete within line
|
|
TextRange erased_range(m_cursor, { m_cursor.line(), m_cursor.column() + 1 });
|
|
execute<RemoveTextCommand>(document().text_in_range(erased_range), erased_range);
|
|
return;
|
|
}
|
|
if (m_cursor.column() == current_line().length() && m_cursor.line() != line_count() - 1) {
|
|
// Delete at end of line; merge with next line
|
|
TextRange erased_range(m_cursor, { m_cursor.line() + 1, 0 });
|
|
execute<RemoveTextCommand>(document().text_in_range(erased_range), erased_range);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void TextEditor::add_code_point(u32 code_point)
|
|
{
|
|
if (!is_editable())
|
|
return;
|
|
|
|
StringBuilder sb;
|
|
sb.append_code_point(code_point);
|
|
|
|
if (should_autocomplete_automatically()) {
|
|
if (sb.string_view().is_whitespace())
|
|
m_autocomplete_timer->stop();
|
|
else
|
|
m_autocomplete_timer->start();
|
|
}
|
|
insert_at_cursor_or_replace_selection(sb.to_deprecated_string());
|
|
};
|
|
|
|
void TextEditor::reset_cursor_blink()
|
|
{
|
|
m_cursor_state = true;
|
|
update_cursor();
|
|
stop_timer();
|
|
start_timer(500);
|
|
}
|
|
|
|
void TextEditor::update_selection(bool is_selecting)
|
|
{
|
|
if (is_selecting && !selection().is_valid()) {
|
|
selection().set(cursor(), {});
|
|
did_update_selection();
|
|
update();
|
|
return;
|
|
}
|
|
if (!is_selecting && selection().is_valid()) {
|
|
selection().clear();
|
|
did_update_selection();
|
|
update();
|
|
return;
|
|
}
|
|
if (is_selecting && selection().start().is_valid()) {
|
|
selection().set_end(cursor());
|
|
did_update_selection();
|
|
update();
|
|
return;
|
|
}
|
|
}
|
|
|
|
int TextEditor::content_x_for_position(TextPosition const& position) const
|
|
{
|
|
auto& line = this->line(position.line());
|
|
int x_offset = 0;
|
|
switch (m_text_alignment) {
|
|
case Gfx::TextAlignment::CenterLeft:
|
|
for_each_visual_line(position.line(), [&](Gfx::IntRect const&, auto& visual_line_view, size_t start_of_visual_line, bool is_last_visual_line) {
|
|
size_t offset_in_visual_line = position.column() - start_of_visual_line;
|
|
auto before_line_end = is_last_visual_line ? (offset_in_visual_line <= visual_line_view.length()) : (offset_in_visual_line < visual_line_view.length());
|
|
if (position.column() >= start_of_visual_line && before_line_end) {
|
|
if (offset_in_visual_line == 0) {
|
|
x_offset = 0;
|
|
} else {
|
|
x_offset = text_width_for_font(visual_line_view.substring_view(0, offset_in_visual_line), font());
|
|
x_offset += font().glyph_spacing();
|
|
}
|
|
return IterationDecision::Break;
|
|
}
|
|
return IterationDecision::Continue;
|
|
});
|
|
return m_horizontal_content_padding + ((is_single_line() && icon()) ? (icon_size() + icon_padding()) : 0) + x_offset;
|
|
case Gfx::TextAlignment::CenterRight:
|
|
// FIXME
|
|
VERIFY(!is_wrapping_enabled());
|
|
return content_width() - m_horizontal_content_padding - (line.length() * fixed_glyph_width()) + (position.column() * fixed_glyph_width());
|
|
default:
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
}
|
|
|
|
int TextEditor::text_width_for_font(auto const& text, Gfx::Font const& font) const
|
|
{
|
|
if (m_substitution_code_point.has_value())
|
|
return font.width(substitution_code_point_view(text.length()));
|
|
else
|
|
return font.width(text);
|
|
}
|
|
|
|
Utf32View TextEditor::substitution_code_point_view(size_t length) const
|
|
{
|
|
VERIFY(m_substitution_code_point.has_value());
|
|
if (!m_substitution_string_data)
|
|
m_substitution_string_data = make<Vector<u32>>();
|
|
if (!m_substitution_string_data->is_empty())
|
|
VERIFY(m_substitution_string_data->first() == m_substitution_code_point);
|
|
while (m_substitution_string_data->size() < length)
|
|
m_substitution_string_data->append(m_substitution_code_point.value());
|
|
return Utf32View { m_substitution_string_data->data(), length };
|
|
}
|
|
|
|
Gfx::IntRect TextEditor::content_rect_for_position(TextPosition const& position) const
|
|
{
|
|
if (!position.is_valid())
|
|
return {};
|
|
VERIFY(!lines().is_empty());
|
|
VERIFY(position.column() <= (current_line().length() + 1));
|
|
|
|
int x = content_x_for_position(position);
|
|
|
|
if (is_single_line()) {
|
|
Gfx::IntRect rect { x, 0, 1, line_height() };
|
|
rect.center_vertically_within({ {}, frame_inner_rect().size() });
|
|
return rect;
|
|
}
|
|
|
|
Gfx::IntRect rect;
|
|
for_each_visual_line(position.line(), [&](Gfx::IntRect const& visual_line_rect, auto& view, size_t start_of_visual_line, bool is_last_visual_line) {
|
|
auto before_line_end = is_last_visual_line ? ((position.column() - start_of_visual_line) <= view.length()) : ((position.column() - start_of_visual_line) < view.length());
|
|
if (position.column() >= start_of_visual_line && before_line_end) {
|
|
// NOTE: We have to subtract the horizontal padding here since it's part of the visual line rect
|
|
// *and* included in what we get from content_x_for_position().
|
|
rect = {
|
|
visual_line_rect.x() + x - (m_horizontal_content_padding),
|
|
visual_line_rect.y(),
|
|
m_editing_engine->cursor_width() == CursorWidth::WIDE ? 7 : 1,
|
|
line_height()
|
|
};
|
|
return IterationDecision::Break;
|
|
}
|
|
return IterationDecision::Continue;
|
|
});
|
|
return rect;
|
|
}
|
|
|
|
Gfx::IntRect TextEditor::cursor_content_rect() const
|
|
{
|
|
return content_rect_for_position(m_cursor);
|
|
}
|
|
|
|
Gfx::IntRect TextEditor::line_widget_rect(size_t line_index) const
|
|
{
|
|
auto rect = line_content_rect(line_index);
|
|
rect.set_x(frame_thickness());
|
|
rect.set_width(frame_inner_rect().width());
|
|
rect.translate_by(0, -(vertical_scrollbar().value()));
|
|
rect.translate_by(0, frame_thickness());
|
|
rect.translate_by(0, height_occupied_by_banner_widget());
|
|
rect.intersect(frame_inner_rect());
|
|
return rect;
|
|
}
|
|
|
|
void TextEditor::scroll_position_into_view(TextPosition const& position)
|
|
{
|
|
auto rect = content_rect_for_position(position);
|
|
if (position.column() == 0)
|
|
rect.set_x(content_x_for_position({ position.line(), 0 }) - 2);
|
|
else if (position.column() == line(position.line()).length())
|
|
rect.set_x(content_x_for_position({ position.line(), line(position.line()).length() }) + 2);
|
|
scroll_into_view(rect, true, true);
|
|
}
|
|
|
|
void TextEditor::scroll_cursor_into_view()
|
|
{
|
|
if (!m_reflow_deferred)
|
|
scroll_position_into_view(m_cursor);
|
|
}
|
|
|
|
Gfx::IntRect TextEditor::line_content_rect(size_t line_index) const
|
|
{
|
|
auto& line = this->line(line_index);
|
|
if (is_single_line()) {
|
|
Gfx::IntRect line_rect = { content_x_for_position({ line_index, 0 }), 0, text_width_for_font(line.view(), font()), font().glyph_height() + 4 };
|
|
line_rect.center_vertically_within({ {}, frame_inner_rect().size() });
|
|
return line_rect;
|
|
}
|
|
if (is_wrapping_enabled())
|
|
return m_line_visual_data[line_index].visual_rect;
|
|
return {
|
|
content_x_for_position({ line_index, 0 }),
|
|
(int)line_index * line_height(),
|
|
text_width_for_font(line.view(), font()),
|
|
line_height()
|
|
};
|
|
}
|
|
|
|
void TextEditor::set_cursor_and_focus_line(size_t line, size_t column)
|
|
{
|
|
u_int index_max = line_count() - 1;
|
|
set_cursor(line, column);
|
|
if (line > 1 && line < index_max) {
|
|
int headroom = frame_inner_rect().height() / 3;
|
|
do {
|
|
auto line_data = m_line_visual_data[line];
|
|
headroom -= line_data.visual_rect.height();
|
|
line--;
|
|
} while (line > 0 && headroom > 0);
|
|
|
|
Gfx::IntRect rect = { 0, line_content_rect(line).y(),
|
|
1, frame_inner_rect().height() };
|
|
scroll_into_view(rect, false, true);
|
|
}
|
|
}
|
|
|
|
void TextEditor::update_cursor()
|
|
{
|
|
update(line_widget_rect(m_cursor.line()));
|
|
}
|
|
|
|
void TextEditor::set_cursor(size_t line, size_t column)
|
|
{
|
|
set_cursor({ line, column });
|
|
}
|
|
|
|
void TextEditor::set_cursor(TextPosition const& a_position)
|
|
{
|
|
VERIFY(!lines().is_empty());
|
|
|
|
TextPosition position = a_position;
|
|
|
|
if (position.line() >= line_count())
|
|
position.set_line(line_count() - 1);
|
|
|
|
if (position.column() > lines()[position.line()].length())
|
|
position.set_column(lines()[position.line()].length());
|
|
|
|
if (m_cursor != position && is_visual_data_up_to_date()) {
|
|
// NOTE: If the old cursor is no longer valid, repaint everything just in case.
|
|
auto old_cursor_line_rect = m_cursor.line() < line_count()
|
|
? line_widget_rect(m_cursor.line())
|
|
: rect();
|
|
m_cursor = position;
|
|
m_cursor_state = true;
|
|
scroll_cursor_into_view();
|
|
update(old_cursor_line_rect);
|
|
update_cursor();
|
|
} else if (m_cursor != position) {
|
|
m_cursor = position;
|
|
m_cursor_state = true;
|
|
}
|
|
cursor_did_change();
|
|
if (on_cursor_change)
|
|
on_cursor_change();
|
|
if (m_highlighter)
|
|
m_highlighter->cursor_did_change();
|
|
}
|
|
|
|
void TextEditor::focusin_event(FocusEvent& event)
|
|
{
|
|
if (event.source() == FocusSource::Keyboard)
|
|
select_all();
|
|
m_cursor_state = true;
|
|
update_cursor();
|
|
stop_timer();
|
|
start_timer(500);
|
|
if (on_focusin)
|
|
on_focusin();
|
|
}
|
|
|
|
void TextEditor::focusout_event(FocusEvent&)
|
|
{
|
|
if (is_displayonly() && has_selection())
|
|
m_selection.clear();
|
|
stop_timer();
|
|
if (on_focusout)
|
|
on_focusout();
|
|
}
|
|
|
|
void TextEditor::timer_event(Core::TimerEvent&)
|
|
{
|
|
m_cursor_state = !m_cursor_state;
|
|
if (is_focused())
|
|
update_cursor();
|
|
}
|
|
|
|
bool TextEditor::write_to_file(DeprecatedString const& path)
|
|
{
|
|
auto file = Core::File::construct(path);
|
|
if (!file->open(Core::OpenMode::WriteOnly | Core::OpenMode::Truncate)) {
|
|
warnln("Error opening {}: {}", path, strerror(file->error()));
|
|
return false;
|
|
}
|
|
|
|
return write_to_file(*file);
|
|
}
|
|
|
|
bool TextEditor::write_to_file(Core::File& file)
|
|
{
|
|
off_t file_size = 0;
|
|
if (line_count() == 1 && line(0).is_empty()) {
|
|
// Truncate to zero.
|
|
} else {
|
|
// Compute the final file size and ftruncate() to make writing fast.
|
|
// FIXME: Remove this once the kernel is smart enough to do this instead.
|
|
for (size_t i = 0; i < line_count(); ++i)
|
|
file_size += line(i).length();
|
|
file_size += line_count();
|
|
}
|
|
|
|
if (!file.truncate(file_size)) {
|
|
perror("ftruncate");
|
|
return false;
|
|
}
|
|
|
|
if (file_size == 0) {
|
|
// A size 0 file doesn't need a data copy.
|
|
} else {
|
|
for (size_t i = 0; i < line_count(); ++i) {
|
|
auto& line = this->line(i);
|
|
if (line.length()) {
|
|
auto line_as_utf8 = line.to_utf8();
|
|
ssize_t nwritten = file.write(line_as_utf8);
|
|
if (nwritten < 0) {
|
|
perror("write");
|
|
return false;
|
|
}
|
|
}
|
|
char ch = '\n';
|
|
ssize_t nwritten = file.write((u8*)&ch, 1);
|
|
if (nwritten != 1) {
|
|
perror("write");
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
document().set_unmodified();
|
|
return true;
|
|
}
|
|
|
|
DeprecatedString TextEditor::text() const
|
|
{
|
|
return document().text();
|
|
}
|
|
|
|
void TextEditor::clear()
|
|
{
|
|
document().remove_all_lines();
|
|
document().append_line(make<TextDocumentLine>(document()));
|
|
m_selection.clear();
|
|
did_update_selection();
|
|
set_cursor(0, 0);
|
|
update();
|
|
}
|
|
|
|
DeprecatedString TextEditor::selected_text() const
|
|
{
|
|
if (!has_selection())
|
|
return {};
|
|
|
|
return document().text_in_range(m_selection);
|
|
}
|
|
|
|
size_t TextEditor::number_of_selected_words() const
|
|
{
|
|
if (!has_selection())
|
|
return 0;
|
|
|
|
size_t word_count = 0;
|
|
bool in_word = false;
|
|
auto selected_text = this->selected_text();
|
|
for (char c : selected_text) {
|
|
if (in_word && is_ascii_space(c)) {
|
|
in_word = false;
|
|
word_count++;
|
|
continue;
|
|
}
|
|
if (!in_word && !is_ascii_space(c))
|
|
in_word = true;
|
|
}
|
|
if (in_word)
|
|
word_count++;
|
|
|
|
return word_count;
|
|
}
|
|
|
|
size_t TextEditor::number_of_words() const
|
|
{
|
|
if (document().is_empty())
|
|
return 0;
|
|
|
|
size_t word_count = 0;
|
|
bool in_word = false;
|
|
auto text = this->text();
|
|
for (char c : text) {
|
|
if (in_word && is_ascii_space(c)) {
|
|
in_word = false;
|
|
word_count++;
|
|
continue;
|
|
}
|
|
if (!in_word && !is_ascii_space(c))
|
|
in_word = true;
|
|
}
|
|
if (in_word)
|
|
word_count++;
|
|
|
|
return word_count;
|
|
}
|
|
|
|
void TextEditor::delete_selection()
|
|
{
|
|
auto selection = normalized_selection();
|
|
auto selected = selected_text();
|
|
m_selection.clear();
|
|
execute<RemoveTextCommand>(selected, selection);
|
|
did_update_selection();
|
|
did_change();
|
|
set_cursor(selection.start());
|
|
update();
|
|
}
|
|
|
|
void TextEditor::delete_text_range(TextRange range)
|
|
{
|
|
auto normalized_range = range.normalized();
|
|
execute<RemoveTextCommand>(document().text_in_range(normalized_range), normalized_range);
|
|
did_change();
|
|
set_cursor(normalized_range.start());
|
|
update();
|
|
}
|
|
|
|
void TextEditor::insert_at_cursor_or_replace_selection(StringView text)
|
|
{
|
|
ReflowDeferrer defer(*this);
|
|
VERIFY(is_editable());
|
|
if (has_selection())
|
|
delete_selection();
|
|
|
|
// Check if adding a newline leaves the previous line as just whitespace.
|
|
auto const clear_length = m_cursor.column();
|
|
auto const should_clear_last_line = text == "\n"
|
|
&& clear_length > 0
|
|
&& current_line().leading_spaces() == clear_length;
|
|
|
|
execute<InsertTextCommand>(text, m_cursor);
|
|
|
|
if (should_clear_last_line) { // If it does leave just whitespace, clear it.
|
|
auto const original_cursor_position = cursor();
|
|
TextPosition start(original_cursor_position.line() - 1, 0);
|
|
TextPosition end(original_cursor_position.line() - 1, clear_length);
|
|
TextRange erased_range(start, end);
|
|
execute<RemoveTextCommand>(document().text_in_range(erased_range), erased_range);
|
|
set_cursor(original_cursor_position);
|
|
}
|
|
}
|
|
|
|
void TextEditor::replace_all_text_without_resetting_undo_stack(StringView text)
|
|
{
|
|
auto start = GUI::TextPosition(0, 0);
|
|
auto last_line_index = line_count() - 1;
|
|
auto end = GUI::TextPosition(last_line_index, line(last_line_index).length());
|
|
auto range = GUI::TextRange(start, end);
|
|
auto normalized_range = range.normalized();
|
|
execute<ReplaceAllTextCommand>(text, range, "GML Playground Format Text");
|
|
did_change();
|
|
set_cursor(normalized_range.start());
|
|
update();
|
|
}
|
|
|
|
void TextEditor::cut()
|
|
{
|
|
if (!is_editable())
|
|
return;
|
|
auto selected_text = this->selected_text();
|
|
dbgln_if(TEXTEDITOR_DEBUG, "Cut: \"{}\"", selected_text);
|
|
Clipboard::the().set_plain_text(selected_text);
|
|
delete_selection();
|
|
}
|
|
|
|
void TextEditor::copy()
|
|
{
|
|
auto selected_text = this->selected_text();
|
|
dbgln_if(TEXTEDITOR_DEBUG, "Copy: \"{}\"\n", selected_text);
|
|
Clipboard::the().set_plain_text(selected_text);
|
|
}
|
|
|
|
void TextEditor::paste()
|
|
{
|
|
if (!is_editable())
|
|
return;
|
|
|
|
auto [data, mime_type, _] = GUI::Clipboard::the().fetch_data_and_type();
|
|
if (!mime_type.starts_with("text/"sv))
|
|
return;
|
|
|
|
if (data.is_empty())
|
|
return;
|
|
|
|
dbgln_if(TEXTEDITOR_DEBUG, "Paste: \"{}\"", DeprecatedString::copy(data));
|
|
|
|
TemporaryChange change(m_automatic_indentation_enabled, false);
|
|
insert_at_cursor_or_replace_selection(data);
|
|
}
|
|
|
|
void TextEditor::defer_reflow()
|
|
{
|
|
++m_reflow_deferred;
|
|
}
|
|
|
|
void TextEditor::undefer_reflow()
|
|
{
|
|
VERIFY(m_reflow_deferred);
|
|
if (!--m_reflow_deferred) {
|
|
if (m_reflow_requested) {
|
|
recompute_all_visual_lines();
|
|
scroll_cursor_into_view();
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextEditor::try_show_autocomplete(UserRequestedAutocomplete user_requested_autocomplete)
|
|
{
|
|
force_update_autocomplete([&, user_requested_autocomplete = move(user_requested_autocomplete)] {
|
|
if (user_requested_autocomplete == Yes || m_autocomplete_box->has_suggestions()) {
|
|
auto position = content_rect_for_position(cursor()).translated(0, -visible_content_rect().y()).bottom_right().translated(screen_relative_rect().top_left().translated(ruler_width(), 0).translated(10, 5));
|
|
m_autocomplete_box->show(position);
|
|
}
|
|
});
|
|
}
|
|
|
|
void TextEditor::try_update_autocomplete(Function<void()> callback)
|
|
{
|
|
if (m_autocomplete_box && m_autocomplete_box->is_visible())
|
|
force_update_autocomplete(move(callback));
|
|
}
|
|
|
|
void TextEditor::force_update_autocomplete(Function<void()> callback)
|
|
{
|
|
if (m_autocomplete_provider) {
|
|
m_autocomplete_provider->provide_completions([&, callback = move(callback)](auto completions) {
|
|
m_autocomplete_box->update_suggestions(move(completions));
|
|
if (callback)
|
|
callback();
|
|
});
|
|
}
|
|
}
|
|
|
|
void TextEditor::hide_autocomplete_if_needed()
|
|
{
|
|
if (!m_should_keep_autocomplete_box)
|
|
hide_autocomplete();
|
|
}
|
|
|
|
void TextEditor::hide_autocomplete()
|
|
{
|
|
if (m_autocomplete_box) {
|
|
m_autocomplete_box->close();
|
|
if (m_autocomplete_timer)
|
|
m_autocomplete_timer->stop();
|
|
}
|
|
}
|
|
|
|
void TextEditor::enter_event(Core::Event&)
|
|
{
|
|
m_automatic_selection_scroll_timer->stop();
|
|
}
|
|
|
|
void TextEditor::leave_event(Core::Event&)
|
|
{
|
|
if (m_in_drag_select)
|
|
m_automatic_selection_scroll_timer->start();
|
|
}
|
|
|
|
void TextEditor::did_change(AllowCallback allow_callback)
|
|
{
|
|
update_content_size();
|
|
recompute_all_visual_lines();
|
|
hide_autocomplete_if_needed();
|
|
m_needs_rehighlight = true;
|
|
if (on_change && allow_callback == AllowCallback::Yes)
|
|
on_change();
|
|
}
|
|
void TextEditor::set_mode(const Mode mode)
|
|
{
|
|
if (m_mode == mode)
|
|
return;
|
|
m_mode = mode;
|
|
switch (mode) {
|
|
case Editable:
|
|
m_cut_action->set_enabled(has_selection() && !text_is_secret());
|
|
m_paste_action->set_enabled(true);
|
|
m_insert_emoji_action->set_enabled(true);
|
|
break;
|
|
case DisplayOnly:
|
|
case ReadOnly:
|
|
m_cut_action->set_enabled(false);
|
|
m_paste_action->set_enabled(false);
|
|
m_insert_emoji_action->set_enabled(false);
|
|
break;
|
|
default:
|
|
VERIFY_NOT_REACHED();
|
|
}
|
|
|
|
set_or_clear_emoji_input_callback();
|
|
set_editing_cursor();
|
|
}
|
|
|
|
void TextEditor::set_editing_cursor()
|
|
{
|
|
if (!is_displayonly())
|
|
set_override_cursor(Gfx::StandardCursor::IBeam);
|
|
else
|
|
set_override_cursor(Gfx::StandardCursor::None);
|
|
}
|
|
|
|
void TextEditor::did_update_selection()
|
|
{
|
|
m_cut_action->set_enabled(is_editable() && has_selection() && !text_is_secret());
|
|
m_copy_action->set_enabled(has_selection() && !text_is_secret());
|
|
if (on_selection_change)
|
|
on_selection_change();
|
|
if (is_wrapping_enabled()) {
|
|
// FIXME: Try to repaint less.
|
|
update();
|
|
}
|
|
}
|
|
|
|
void TextEditor::context_menu_event(ContextMenuEvent& event)
|
|
{
|
|
if (is_displayonly())
|
|
return;
|
|
|
|
m_insert_emoji_action->set_enabled(on_emoji_input && !window()->blocks_emoji_input());
|
|
|
|
if (!m_context_menu) {
|
|
m_context_menu = Menu::construct();
|
|
m_context_menu->add_action(undo_action());
|
|
m_context_menu->add_action(redo_action());
|
|
m_context_menu->add_separator();
|
|
m_context_menu->add_action(cut_action());
|
|
m_context_menu->add_action(copy_action());
|
|
m_context_menu->add_action(paste_action());
|
|
m_context_menu->add_separator();
|
|
m_context_menu->add_action(select_all_action());
|
|
m_context_menu->add_action(insert_emoji_action());
|
|
if (is_multi_line()) {
|
|
m_context_menu->add_separator();
|
|
m_context_menu->add_action(go_to_line_action());
|
|
}
|
|
if (!m_custom_context_menu_actions.is_empty()) {
|
|
m_context_menu->add_separator();
|
|
for (auto& action : m_custom_context_menu_actions) {
|
|
m_context_menu->add_action(action);
|
|
}
|
|
}
|
|
}
|
|
m_context_menu->popup(event.screen_position());
|
|
}
|
|
|
|
void TextEditor::set_text_alignment(Gfx::TextAlignment alignment)
|
|
{
|
|
if (m_text_alignment == alignment)
|
|
return;
|
|
m_text_alignment = alignment;
|
|
update();
|
|
}
|
|
|
|
void TextEditor::resize_event(ResizeEvent& event)
|
|
{
|
|
AbstractScrollableWidget::resize_event(event);
|
|
update_content_size();
|
|
recompute_all_visual_lines();
|
|
}
|
|
|
|
void TextEditor::theme_change_event(ThemeChangeEvent& event)
|
|
{
|
|
AbstractScrollableWidget::theme_change_event(event);
|
|
m_needs_rehighlight = true;
|
|
}
|
|
|
|
void TextEditor::set_selection(TextRange const& selection)
|
|
{
|
|
if (m_selection == selection)
|
|
return;
|
|
m_selection = selection;
|
|
set_cursor(m_selection.end());
|
|
scroll_position_into_view(normalized_selection().start());
|
|
update();
|
|
}
|
|
|
|
void TextEditor::clear_selection()
|
|
{
|
|
if (!has_selection())
|
|
return;
|
|
m_selection.clear();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::recompute_all_visual_lines()
|
|
{
|
|
if (m_reflow_deferred) {
|
|
m_reflow_requested = true;
|
|
return;
|
|
}
|
|
|
|
m_reflow_requested = false;
|
|
|
|
int y_offset = 0;
|
|
for (size_t line_index = 0; line_index < line_count(); ++line_index) {
|
|
recompute_visual_lines(line_index);
|
|
m_line_visual_data[line_index].visual_rect.set_y(y_offset);
|
|
y_offset += m_line_visual_data[line_index].visual_rect.height();
|
|
}
|
|
|
|
update_content_size();
|
|
}
|
|
|
|
void TextEditor::ensure_cursor_is_valid()
|
|
{
|
|
auto new_cursor = m_cursor;
|
|
if (new_cursor.line() >= line_count())
|
|
new_cursor.set_line(line_count() - 1);
|
|
if (new_cursor.column() > line(new_cursor.line()).length())
|
|
new_cursor.set_column(line(new_cursor.line()).length());
|
|
if (m_cursor != new_cursor)
|
|
set_cursor(new_cursor);
|
|
}
|
|
|
|
size_t TextEditor::visual_line_containing(size_t line_index, size_t column) const
|
|
{
|
|
size_t visual_line_index = 0;
|
|
for_each_visual_line(line_index, [&](Gfx::IntRect const&, auto& view, size_t start_of_visual_line, [[maybe_unused]] bool is_last_visual_line) {
|
|
if (column >= start_of_visual_line && ((column - start_of_visual_line) < view.length()))
|
|
return IterationDecision::Break;
|
|
++visual_line_index;
|
|
return IterationDecision::Continue;
|
|
});
|
|
return visual_line_index;
|
|
}
|
|
|
|
void TextEditor::recompute_visual_lines(size_t line_index)
|
|
{
|
|
auto& line = document().line(line_index);
|
|
auto& visual_data = m_line_visual_data[line_index];
|
|
|
|
visual_data.visual_line_breaks.clear_with_capacity();
|
|
|
|
int available_width = visible_text_rect_in_inner_coordinates().width();
|
|
|
|
if (is_wrapping_enabled()) {
|
|
int line_width_so_far = 0;
|
|
|
|
size_t last_whitespace_index = 0;
|
|
size_t line_width_since_last_whitespace = 0;
|
|
auto glyph_spacing = font().glyph_spacing();
|
|
for (size_t i = 0; i < line.length(); ++i) {
|
|
auto code_point = line.code_points()[i];
|
|
if (is_ascii_space(code_point)) {
|
|
last_whitespace_index = i;
|
|
line_width_since_last_whitespace = 0;
|
|
}
|
|
auto glyph_width = font().glyph_or_emoji_width(code_point);
|
|
line_width_since_last_whitespace += glyph_width + glyph_spacing;
|
|
if ((line_width_so_far + glyph_width + glyph_spacing) > available_width) {
|
|
if (m_wrapping_mode == WrappingMode::WrapAtWords && last_whitespace_index != 0) {
|
|
// Plus 1 to get the first letter of the word.
|
|
visual_data.visual_line_breaks.append(last_whitespace_index + 1);
|
|
line_width_so_far = line_width_since_last_whitespace;
|
|
last_whitespace_index = 0;
|
|
line_width_since_last_whitespace = 0;
|
|
} else {
|
|
visual_data.visual_line_breaks.append(i);
|
|
line_width_so_far = glyph_width + glyph_spacing;
|
|
}
|
|
continue;
|
|
}
|
|
line_width_so_far += glyph_width + glyph_spacing;
|
|
}
|
|
}
|
|
|
|
visual_data.visual_line_breaks.append(line.length());
|
|
|
|
if (is_wrapping_enabled())
|
|
visual_data.visual_rect = { m_horizontal_content_padding, 0, available_width, static_cast<int>(visual_data.visual_line_breaks.size()) * line_height() };
|
|
else
|
|
visual_data.visual_rect = { m_horizontal_content_padding, 0, text_width_for_font(line.view(), font()), line_height() };
|
|
}
|
|
|
|
template<typename Callback>
|
|
void TextEditor::for_each_visual_line(size_t line_index, Callback callback) const
|
|
{
|
|
auto editor_visible_text_rect = visible_text_rect_in_inner_coordinates();
|
|
size_t start_of_line = 0;
|
|
size_t visual_line_index = 0;
|
|
|
|
auto& line = document().line(line_index);
|
|
auto& visual_data = m_line_visual_data[line_index];
|
|
|
|
for (auto visual_line_break : visual_data.visual_line_breaks) {
|
|
auto visual_line_view = Utf32View(line.code_points() + start_of_line, visual_line_break - start_of_line);
|
|
Gfx::IntRect visual_line_rect {
|
|
visual_data.visual_rect.x(),
|
|
visual_data.visual_rect.y() + ((int)visual_line_index * line_height()),
|
|
text_width_for_font(visual_line_view, font()) + font().glyph_spacing(),
|
|
line_height()
|
|
};
|
|
if (is_right_text_alignment(text_alignment()))
|
|
visual_line_rect.set_right_without_resize(editor_visible_text_rect.right());
|
|
if (is_single_line()) {
|
|
visual_line_rect.center_vertically_within(editor_visible_text_rect);
|
|
if (m_icon)
|
|
visual_line_rect.translate_by(icon_size() + icon_padding(), 0);
|
|
}
|
|
if (callback(visual_line_rect, visual_line_view, start_of_line, visual_line_index == visual_data.visual_line_breaks.size() - 1) == IterationDecision::Break)
|
|
break;
|
|
start_of_line = visual_line_break;
|
|
++visual_line_index;
|
|
}
|
|
}
|
|
|
|
void TextEditor::set_wrapping_mode(WrappingMode mode)
|
|
{
|
|
if (m_wrapping_mode == mode)
|
|
return;
|
|
|
|
m_wrapping_mode = mode;
|
|
horizontal_scrollbar().set_visible(m_wrapping_mode == WrappingMode::NoWrap);
|
|
update_content_size();
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::add_custom_context_menu_action(Action& action)
|
|
{
|
|
m_custom_context_menu_actions.append(action);
|
|
}
|
|
|
|
void TextEditor::did_change_font()
|
|
{
|
|
vertical_scrollbar().set_step(line_height());
|
|
recompute_all_visual_lines();
|
|
update();
|
|
AbstractScrollableWidget::did_change_font();
|
|
}
|
|
|
|
void TextEditor::document_did_append_line()
|
|
{
|
|
m_line_visual_data.append(make<LineVisualData>());
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::document_did_remove_line(size_t line_index)
|
|
{
|
|
m_line_visual_data.remove(line_index);
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::document_did_remove_all_lines()
|
|
{
|
|
m_line_visual_data.clear();
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::document_did_insert_line(size_t line_index)
|
|
{
|
|
m_line_visual_data.insert(line_index, make<LineVisualData>());
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::document_did_change(AllowCallback allow_callback)
|
|
{
|
|
did_change(allow_callback);
|
|
update();
|
|
}
|
|
|
|
void TextEditor::document_did_update_undo_stack()
|
|
{
|
|
auto make_action_text = [](auto prefix, auto suffix) {
|
|
StringBuilder builder;
|
|
builder.append(prefix);
|
|
if (suffix.has_value()) {
|
|
builder.append(' ');
|
|
builder.append(suffix.value());
|
|
}
|
|
return builder.to_deprecated_string();
|
|
};
|
|
|
|
m_undo_action->set_enabled(can_undo() && !text_is_secret());
|
|
m_redo_action->set_enabled(can_redo() && !text_is_secret());
|
|
|
|
m_undo_action->set_text(make_action_text("&Undo"sv, document().undo_stack().undo_action_text()));
|
|
m_redo_action->set_text(make_action_text("&Redo"sv, document().undo_stack().redo_action_text()));
|
|
|
|
// FIXME: This is currently firing more often than it should.
|
|
// Ideally we'd only send this out when the undo stack modified state actually changes.
|
|
if (on_modified_change)
|
|
on_modified_change(document().is_modified());
|
|
}
|
|
|
|
void TextEditor::document_did_set_text(AllowCallback allow_callback)
|
|
{
|
|
m_line_visual_data.clear();
|
|
for (size_t i = 0; i < m_document->line_count(); ++i)
|
|
m_line_visual_data.append(make<LineVisualData>());
|
|
document_did_change(allow_callback);
|
|
}
|
|
|
|
void TextEditor::document_did_set_cursor(TextPosition const& position)
|
|
{
|
|
set_cursor(position);
|
|
}
|
|
|
|
void TextEditor::cursor_did_change()
|
|
{
|
|
hide_autocomplete_if_needed();
|
|
}
|
|
|
|
void TextEditor::clipboard_content_did_change(DeprecatedString const& mime_type)
|
|
{
|
|
m_paste_action->set_enabled(is_editable() && mime_type.starts_with("text/"sv));
|
|
}
|
|
|
|
void TextEditor::set_document(TextDocument& document)
|
|
{
|
|
if (m_document.ptr() == &document)
|
|
return;
|
|
if (m_document)
|
|
m_document->unregister_client(*this);
|
|
m_document = document;
|
|
m_line_visual_data.clear();
|
|
for (size_t i = 0; i < m_document->line_count(); ++i) {
|
|
m_line_visual_data.append(make<LineVisualData>());
|
|
}
|
|
set_cursor(0, 0);
|
|
if (has_selection())
|
|
m_selection.clear();
|
|
recompute_all_visual_lines();
|
|
update();
|
|
m_document->register_client(*this);
|
|
}
|
|
|
|
void TextEditor::rehighlight_if_needed()
|
|
{
|
|
if (!m_needs_rehighlight)
|
|
return;
|
|
force_rehighlight();
|
|
}
|
|
|
|
void TextEditor::force_rehighlight()
|
|
{
|
|
if (m_highlighter)
|
|
m_highlighter->rehighlight(palette());
|
|
m_needs_rehighlight = false;
|
|
}
|
|
|
|
Syntax::Highlighter const* TextEditor::syntax_highlighter() const
|
|
{
|
|
return m_highlighter.ptr();
|
|
}
|
|
|
|
Syntax::Highlighter* TextEditor::syntax_highlighter()
|
|
{
|
|
return m_highlighter.ptr();
|
|
}
|
|
|
|
void TextEditor::set_syntax_highlighter(OwnPtr<Syntax::Highlighter> highlighter)
|
|
{
|
|
if (m_highlighter)
|
|
m_highlighter->detach();
|
|
m_highlighter = move(highlighter);
|
|
if (m_highlighter) {
|
|
m_highlighter->attach(*this);
|
|
m_needs_rehighlight = true;
|
|
} else
|
|
document().set_spans(Syntax::HighlighterClient::span_collection_index, {});
|
|
if (on_highlighter_change)
|
|
on_highlighter_change();
|
|
}
|
|
|
|
AutocompleteProvider const* TextEditor::autocomplete_provider() const
|
|
{
|
|
return m_autocomplete_provider.ptr();
|
|
}
|
|
|
|
void TextEditor::set_autocomplete_provider(OwnPtr<AutocompleteProvider>&& provider)
|
|
{
|
|
if (m_autocomplete_provider)
|
|
m_autocomplete_provider->detach();
|
|
m_autocomplete_provider = move(provider);
|
|
if (m_autocomplete_provider) {
|
|
m_autocomplete_provider->attach(*this);
|
|
if (!m_autocomplete_box)
|
|
m_autocomplete_box = make<AutocompleteBox>(*this);
|
|
}
|
|
if (m_autocomplete_box)
|
|
hide_autocomplete();
|
|
}
|
|
|
|
EditingEngine const* TextEditor::editing_engine() const
|
|
{
|
|
return m_editing_engine.ptr();
|
|
}
|
|
|
|
void TextEditor::set_editing_engine(OwnPtr<EditingEngine> editing_engine)
|
|
{
|
|
if (m_editing_engine)
|
|
m_editing_engine->detach();
|
|
m_editing_engine = move(editing_engine);
|
|
|
|
VERIFY(m_editing_engine);
|
|
m_editing_engine->attach(*this);
|
|
|
|
m_cursor_state = true;
|
|
update_cursor();
|
|
stop_timer();
|
|
start_timer(500);
|
|
}
|
|
|
|
int TextEditor::line_height() const
|
|
{
|
|
return font().preferred_line_height();
|
|
}
|
|
|
|
int TextEditor::fixed_glyph_width() const
|
|
{
|
|
VERIFY(font().is_fixed_width());
|
|
return font().glyph_width(' ');
|
|
}
|
|
|
|
void TextEditor::set_icon(Gfx::Bitmap const* icon)
|
|
{
|
|
if (m_icon == icon)
|
|
return;
|
|
m_icon = icon;
|
|
update();
|
|
}
|
|
|
|
void TextEditor::set_visualize_trailing_whitespace(bool enabled)
|
|
{
|
|
if (m_visualize_trailing_whitespace == enabled)
|
|
return;
|
|
m_visualize_trailing_whitespace = enabled;
|
|
update();
|
|
}
|
|
|
|
void TextEditor::set_visualize_leading_whitespace(bool enabled)
|
|
{
|
|
if (m_visualize_leading_whitespace == enabled)
|
|
return;
|
|
m_visualize_leading_whitespace = enabled;
|
|
update();
|
|
}
|
|
|
|
void TextEditor::set_should_autocomplete_automatically(bool value)
|
|
{
|
|
if (value == should_autocomplete_automatically())
|
|
return;
|
|
|
|
if (value) {
|
|
VERIFY(m_autocomplete_provider);
|
|
m_autocomplete_timer = Core::Timer::create_single_shot(m_automatic_autocomplete_delay_ms, [this] {
|
|
if (m_autocomplete_box && !m_autocomplete_box->is_visible())
|
|
try_show_autocomplete(UserRequestedAutocomplete::No);
|
|
});
|
|
return;
|
|
}
|
|
|
|
remove_child(*m_autocomplete_timer);
|
|
m_autocomplete_timer = nullptr;
|
|
}
|
|
|
|
void TextEditor::set_substitution_code_point(Optional<u32> code_point)
|
|
{
|
|
if (code_point.has_value())
|
|
VERIFY(is_unicode(code_point.value()));
|
|
m_substitution_string_data.clear();
|
|
m_substitution_code_point = move(code_point);
|
|
}
|
|
|
|
int TextEditor::number_of_visible_lines() const
|
|
{
|
|
return visible_content_rect().height() / line_height();
|
|
}
|
|
|
|
void TextEditor::set_ruler_visible(bool visible)
|
|
{
|
|
if (m_ruler_visible == visible)
|
|
return;
|
|
m_ruler_visible = visible;
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::set_gutter_visible(bool visible)
|
|
{
|
|
if (m_gutter_visible == visible)
|
|
return;
|
|
m_gutter_visible = visible;
|
|
recompute_all_visual_lines();
|
|
update();
|
|
}
|
|
|
|
void TextEditor::set_cursor_line_highlighting(bool highlighted)
|
|
{
|
|
if (m_cursor_line_highlighting == highlighted)
|
|
return;
|
|
m_cursor_line_highlighting = highlighted;
|
|
update();
|
|
}
|
|
|
|
void TextEditor::undo()
|
|
{
|
|
clear_selection();
|
|
document().undo();
|
|
}
|
|
|
|
void TextEditor::redo()
|
|
{
|
|
clear_selection();
|
|
document().redo();
|
|
}
|
|
|
|
void TextEditor::set_text_is_secret(bool text_is_secret)
|
|
{
|
|
m_text_is_secret = text_is_secret;
|
|
document_did_update_undo_stack();
|
|
did_update_selection();
|
|
}
|
|
|
|
TextRange TextEditor::find_text(StringView needle, SearchDirection direction, GUI::TextDocument::SearchShouldWrap should_wrap, bool use_regex, bool match_case)
|
|
{
|
|
GUI::TextRange range {};
|
|
if (direction == SearchDirection::Forward) {
|
|
range = document().find_next(needle,
|
|
m_search_result_index.has_value() ? m_search_results[*m_search_result_index].end() : GUI::TextPosition {},
|
|
should_wrap, use_regex, match_case);
|
|
} else {
|
|
range = document().find_previous(needle,
|
|
m_search_result_index.has_value() ? m_search_results[*m_search_result_index].start() : GUI::TextPosition {},
|
|
should_wrap, use_regex, match_case);
|
|
}
|
|
|
|
if (!range.is_valid()) {
|
|
reset_search_results();
|
|
return {};
|
|
}
|
|
|
|
auto all_results = document().find_all(needle, use_regex, match_case);
|
|
on_search_results(range, all_results);
|
|
return range;
|
|
}
|
|
|
|
void TextEditor::reset_search_results()
|
|
{
|
|
m_search_result_index.clear();
|
|
m_search_results.clear();
|
|
document().set_spans(search_results_span_collection_index, {});
|
|
update();
|
|
}
|
|
|
|
void TextEditor::on_search_results(GUI::TextRange current, Vector<GUI::TextRange> all_results)
|
|
{
|
|
m_search_result_index.clear();
|
|
m_search_results.clear();
|
|
|
|
set_cursor(current.start());
|
|
if (auto it = all_results.find(current); it->is_valid())
|
|
m_search_result_index = it.index();
|
|
m_search_results = move(all_results);
|
|
|
|
Vector<GUI::TextDocumentSpan> spans;
|
|
for (size_t i = 0; i < m_search_results.size(); ++i) {
|
|
auto& result = m_search_results[i];
|
|
GUI::TextDocumentSpan span;
|
|
span.range = result;
|
|
span.attributes.background_color = palette().hover_highlight();
|
|
span.attributes.color = Color::from_argb(0xff000000); // So text without spans from a highlighter will have color
|
|
if (i == m_search_result_index) {
|
|
span.attributes.bold = true;
|
|
span.attributes.underline = true;
|
|
}
|
|
spans.append(move(span));
|
|
}
|
|
document().set_spans(search_results_span_collection_index, move(spans));
|
|
update();
|
|
}
|
|
|
|
}
|