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133 lines
3.4 KiB
C++
133 lines
3.4 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include <QtWidgets/QWidget> // input_fields.h
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#include "base/timer.h"
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#include "spellcheck/platform/platform_spellcheck.h"
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#include "spellcheck/spellcheck_types.h"
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#include "ui/widgets/fields/input_field.h"
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#include <QtGui/QSyntaxHighlighter>
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#include <QtGui/QTextBlock>
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#include <QtWidgets/QMenu>
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#include <QtWidgets/QTextEdit>
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#include <rpl/event_stream.h>
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namespace Ui {
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struct ExtendedContextMenu;
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class PopupMenu;
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} // namespace Ui
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namespace Spellchecker {
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class SpellingHighlighter final : public QSyntaxHighlighter {
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public:
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struct CustomContextMenuItem {
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QString title;
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Fn<void()> callback;
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};
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SpellingHighlighter(
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not_null<Ui::InputField*> field,
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rpl::producer<bool> enabled,
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std::optional<CustomContextMenuItem> customContextMenuItem
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= std::nullopt);
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void contentsChange(int pos, int removed, int added);
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void checkCurrentText();
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bool enabled();
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auto contextMenuCreated() {
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return _contextMenuCreated.events();
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}
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// Windows system spellchecker forces us to perform spell operations
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// In another thread, so the word check and getting a list of suggestions
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// Are run asynchronously.
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// And then the context menu is filled in the main thread.
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void addSpellcheckerActions(
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not_null<QMenu*> parentMenu,
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QTextCursor cursorForPosition,
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Fn<void()> showMenuCallback,
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QPoint mousePosition);
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void fillSpellcheckerMenu(
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not_null<QMenu*> menu,
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QTextCursor cursorForPosition,
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FnMut<void(int firstSuggestionIndex)> show);
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protected:
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void highlightBlock(const QString &text) override;
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bool eventFilter(QObject *o, QEvent *e) override;
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private:
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void updatePalette();
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void setEnabled(bool enabled);
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void checkText(const QString &text);
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void showSpellcheckerMenu();
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void invokeCheckText(
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int textPosition,
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int textLength,
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Fn<void(MisspelledWords &&ranges)> callback);
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void checkChangedText();
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void checkSingleWord(const MisspelledWord &singleWord);
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MisspelledWords filterSkippableWords(MisspelledWords &ranges);
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bool isSkippableWord(const MisspelledWord &range);
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bool isSkippableWord(int position, int length);
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bool hasUnspellcheckableTag(int begin, int length);
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MisspelledWord getWordUnderPosition(int position);
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QString documentText();
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void updateDocumentText();
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QString partDocumentText(int pos, int length);
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int compareDocumentText(const QString &text, int textPos, int textLen);
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QString _lastPlainText;
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std::vector<QTextBlock> blocksFromRange(int pos, int length);
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int size();
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QTextBlock findBlock(int pos);
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int _countOfCheckingTextAsync = 0;
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QTextCharFormat _misspelledFormat;
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QTextCursor _cursor;
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MisspelledWords _cachedRanges;
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EntitiesInText _cachedSkippableEntities;
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int _addedSymbols = 0;
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int _removedSymbols = 0;
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int _lastPosition = 0;
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bool _enabled = true;
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bool _isLastKeyRepeat = false;
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base::Timer _coldSpellcheckingTimer;
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not_null<Ui::InputField*> _field;
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not_null<QTextEdit*> _textEdit;
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base::unique_qptr<Ui::PopupMenu> _menu;
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const std::optional<CustomContextMenuItem> _customContextMenuItem;
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rpl::lifetime _lifetime;
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using ContextMenu = Ui::InputField::ExtendedContextMenu;
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rpl::event_stream<ContextMenu> _contextMenuCreated;
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};
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} // namespace Spellchecker
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