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Libraries: Move to Userland/Libraries/
This commit is contained in:
Andreas Kling
parent
dc28c07fa5
commit
13d7c09125
1857 changed files with 266 additions and 274 deletions
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/HashTable.h>
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#include <AK/NonnullOwnPtrVector.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/Optional.h>
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#include <AK/RefCounted.h>
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#include <AK/Utf32View.h>
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#include <LibCore/Forward.h>
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#include <LibGUI/Command.h>
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#include <LibGUI/Forward.h>
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#include <LibGUI/TextRange.h>
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#include <LibGUI/UndoStack.h>
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#include <LibGfx/Color.h>
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#include <LibGfx/TextAttributes.h>
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#include <LibRegex/Regex.h>
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namespace GUI {
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struct TextDocumentSpan {
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TextRange range;
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Gfx::TextAttributes attributes;
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void* data { nullptr };
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bool is_skippable { false };
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};
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class TextDocument : public RefCounted<TextDocument> {
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public:
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enum class SearchShouldWrap {
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No = 0,
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Yes
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};
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class Client {
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public:
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virtual ~Client();
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virtual void document_did_append_line() = 0;
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virtual void document_did_insert_line(size_t) = 0;
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virtual void document_did_remove_line(size_t) = 0;
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virtual void document_did_remove_all_lines() = 0;
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virtual void document_did_change() = 0;
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virtual void document_did_set_text() = 0;
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virtual void document_did_set_cursor(const TextPosition&) = 0;
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virtual bool is_automatic_indentation_enabled() const = 0;
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virtual int soft_tab_width() const = 0;
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};
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static NonnullRefPtr<TextDocument> create(Client* client = nullptr);
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virtual ~TextDocument();
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size_t line_count() const { return m_lines.size(); }
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const TextDocumentLine& line(size_t line_index) const { return m_lines[line_index]; }
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TextDocumentLine& line(size_t line_index) { return m_lines[line_index]; }
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void set_spans(const Vector<TextDocumentSpan>& spans) { m_spans = spans; }
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void set_text(const StringView&);
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const NonnullOwnPtrVector<TextDocumentLine>& lines() const { return m_lines; }
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NonnullOwnPtrVector<TextDocumentLine>& lines() { return m_lines; }
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bool has_spans() const { return !m_spans.is_empty(); }
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Vector<TextDocumentSpan>& spans() { return m_spans; }
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const Vector<TextDocumentSpan>& spans() const { return m_spans; }
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void set_span_at_index(size_t index, TextDocumentSpan span) { m_spans[index] = move(span); }
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const TextDocumentSpan* span_at(const TextPosition&) const;
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void append_line(NonnullOwnPtr<TextDocumentLine>);
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void remove_line(size_t line_index);
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void remove_all_lines();
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void insert_line(size_t line_index, NonnullOwnPtr<TextDocumentLine>);
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void register_client(Client&);
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void unregister_client(Client&);
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void update_views(Badge<TextDocumentLine>);
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String text() const;
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String text_in_range(const TextRange&) const;
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Vector<TextRange> find_all(const StringView& needle, bool regmatch = false);
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void update_regex_matches(const StringView&);
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TextRange find_next(const StringView&, const TextPosition& start = {}, SearchShouldWrap = SearchShouldWrap::Yes, bool regmatch = false);
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TextRange find_previous(const StringView&, const TextPosition& start = {}, SearchShouldWrap = SearchShouldWrap::Yes, bool regmatch = false);
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TextPosition next_position_after(const TextPosition&, SearchShouldWrap = SearchShouldWrap::Yes) const;
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TextPosition previous_position_before(const TextPosition&, SearchShouldWrap = SearchShouldWrap::Yes) const;
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u32 code_point_at(const TextPosition&) const;
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TextRange range_for_entire_line(size_t line_index) const;
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Optional<TextDocumentSpan> first_non_skippable_span_before(const TextPosition&) const;
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Optional<TextDocumentSpan> first_non_skippable_span_after(const TextPosition&) const;
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TextPosition first_word_break_before(const TextPosition&, bool start_at_column_before) const;
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TextPosition first_word_break_after(const TextPosition&) const;
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void add_to_undo_stack(NonnullOwnPtr<TextDocumentUndoCommand>);
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bool can_undo() const { return m_undo_stack.can_undo(); }
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bool can_redo() const { return m_undo_stack.can_redo(); }
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void undo();
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void redo();
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void notify_did_change();
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void set_all_cursors(const TextPosition&);
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TextPosition insert_at(const TextPosition&, u32, const Client* = nullptr);
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TextPosition insert_at(const TextPosition&, const StringView&, const Client* = nullptr);
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void remove(const TextRange&);
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virtual bool is_code_document() const { return false; }
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bool is_empty() const;
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protected:
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explicit TextDocument(Client* client);
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private:
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void update_undo_timer();
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NonnullOwnPtrVector<TextDocumentLine> m_lines;
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Vector<TextDocumentSpan> m_spans;
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HashTable<Client*> m_clients;
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bool m_client_notifications_enabled { true };
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UndoStack m_undo_stack;
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RefPtr<Core::Timer> m_undo_timer;
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RegexResult m_regex_result;
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size_t m_regex_result_match_index { 0 };
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size_t m_regex_result_match_capture_group_index { 0 };
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bool m_regex_needs_update { true };
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String m_regex_needle;
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};
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class TextDocumentLine {
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public:
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explicit TextDocumentLine(TextDocument&);
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explicit TextDocumentLine(TextDocument&, const StringView&);
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String to_utf8() const;
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Utf32View view() const { return { code_points(), length() }; }
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const u32* code_points() const { return m_text.data(); }
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size_t length() const { return m_text.size(); }
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void set_text(TextDocument&, const StringView&);
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void set_text(TextDocument&, Vector<u32>);
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void append(TextDocument&, u32);
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void prepend(TextDocument&, u32);
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void insert(TextDocument&, size_t index, u32);
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void remove(TextDocument&, size_t index);
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void append(TextDocument&, const u32*, size_t);
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void truncate(TextDocument&, size_t length);
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void clear(TextDocument&);
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void remove_range(TextDocument&, size_t start, size_t length);
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size_t first_non_whitespace_column() const;
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Optional<size_t> last_non_whitespace_column() const;
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bool ends_in_whitespace() const;
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bool is_empty() const { return length() == 0; }
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size_t leading_spaces() const;
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private:
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// NOTE: This vector is null terminated.
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Vector<u32> m_text;
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};
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class TextDocumentUndoCommand : public Command {
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public:
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TextDocumentUndoCommand(TextDocument&);
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virtual ~TextDocumentUndoCommand();
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virtual void perform_formatting(const TextDocument::Client&) { }
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void execute_from(const TextDocument::Client& client)
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{
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m_client = &client;
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redo();
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m_client = nullptr;
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}
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protected:
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TextDocument& m_document;
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const TextDocument::Client* m_client { nullptr };
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};
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class InsertTextCommand : public TextDocumentUndoCommand {
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public:
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InsertTextCommand(TextDocument&, const String&, const TextPosition&);
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virtual void perform_formatting(const TextDocument::Client&) override;
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virtual void undo() override;
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virtual void redo() override;
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virtual bool is_insert_text() const override { return true; }
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const String& text() const { return m_text; }
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const TextRange& range() const { return m_range; }
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private:
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String m_text;
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TextRange m_range;
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};
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class RemoveTextCommand : public TextDocumentUndoCommand {
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public:
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RemoveTextCommand(TextDocument&, const String&, const TextRange&);
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virtual void undo() override;
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virtual void redo() override;
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virtual bool is_remove_text() const override { return true; }
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const TextRange& range() const { return m_range; }
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private:
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String m_text;
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TextRange m_range;
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};
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}
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