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LibGUI: Add search API to TextEditor with highlighted results
This adds a search API to TextEditor. The API that is similar to "find_text" of TextDocument (which is used internally to do the search). All search results (as well as the current one) are highlighted with a "span collection", which is pretty neat :^)
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parent
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commit
5f2a0f03a6
Notes:
sideshowbarker
2024-07-17 16:33:59 +09:00
Author: https://github.com/itamar8910 Commit: https://github.com/SerenityOS/serenity/commit/5f2a0f03a6 Pull-request: https://github.com/SerenityOS/serenity/pull/13335 Reviewed-by: https://github.com/alimpfard ✅
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@ -1,6 +1,7 @@
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Jakob-Niklas See <git@nwex.de>
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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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@ -2105,4 +2106,62 @@ void TextEditor::set_text_is_secret(bool text_is_secret)
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did_update_selection();
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}
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TextRange TextEditor::find_text(StringView needle, SearchDirection direction, GUI::TextDocument::SearchShouldWrap should_wrap, bool use_regex, bool match_case)
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{
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GUI::TextRange range {};
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if (direction == SearchDirection::Forward) {
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range = document().find_next(needle,
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m_search_result_index.has_value() ? m_search_results[*m_search_result_index].end() : GUI::TextPosition {},
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should_wrap, use_regex, match_case);
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} else {
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range = document().find_previous(needle,
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m_search_result_index.has_value() ? m_search_results[*m_search_result_index].start() : GUI::TextPosition {},
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should_wrap, use_regex, match_case);
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}
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if (!range.is_valid()) {
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reset_search_results();
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return {};
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}
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auto all_results = document().find_all(needle, use_regex, match_case);
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on_search_results(range, all_results);
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return range;
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}
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void TextEditor::reset_search_results()
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{
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m_search_result_index.clear();
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m_search_results.clear();
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document().set_spans(search_results_span_collection_index, {});
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update();
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}
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void TextEditor::on_search_results(GUI::TextRange current, Vector<GUI::TextRange> all_results)
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{
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m_search_result_index.clear();
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m_search_results.clear();
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set_cursor(current.start());
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if (auto it = all_results.find(current); it->is_valid())
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m_search_result_index = it.index();
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m_search_results = move(all_results);
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Vector<GUI::TextDocumentSpan> spans;
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for (size_t i = 0; i < m_search_results.size(); ++i) {
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auto& result = m_search_results[i];
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GUI::TextDocumentSpan span;
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span.range = result;
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span.attributes.background_color = palette().hover_highlight();
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span.attributes.color = Color::from_argb(0xff000000); // So text without spans from a highlighter will have color
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if (i == m_search_result_index) {
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span.attributes.bold = true;
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span.attributes.underline = true;
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}
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spans.append(move(span));
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}
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document().set_spans(search_results_span_collection_index, move(spans));
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update();
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}
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}
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@ -1,5 +1,6 @@
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@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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@ -213,6 +214,15 @@ public:
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void set_text_is_secret(bool text_is_secret);
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void force_rehighlight();
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enum class SearchDirection {
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Forward,
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Backward,
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};
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TextRange find_text(StringView needle, SearchDirection, GUI::TextDocument::SearchShouldWrap, bool use_regex, bool match_case);
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void reset_search_results();
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Optional<size_t> search_result_index() const { return m_search_result_index; }
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Vector<TextRange> const& search_results() const { return m_search_results; }
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protected:
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explicit TextEditor(Type = Type::MultiLine);
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@ -260,7 +270,6 @@ private:
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// ^Syntax::HighlighterClient
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virtual Vector<TextDocumentSpan>& spans() final { return document().spans(); }
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virtual Vector<TextDocumentSpan> const& spans() const final { return document().spans(); }
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virtual void highlighter_did_set_spans(Vector<TextDocumentSpan> spans) final { document().set_spans(move(spans)); }
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virtual void set_span_at_index(size_t index, TextDocumentSpan span) final { document().set_span_at_index(index, move(span)); }
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virtual void highlighter_did_request_update() final { update(); }
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virtual String highlighter_did_request_text() const final { return text(); }
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@ -337,6 +346,9 @@ private:
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}
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virtual void will_execute(TextDocumentUndoCommand const&) { }
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void on_search_results(GUI::TextRange current, Vector<GUI::TextRange> all_results);
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static constexpr auto search_results_span_collection_index = 1;
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Type m_type { MultiLine };
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Mode m_mode { Editable };
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@ -408,6 +420,9 @@ private:
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RefPtr<Gfx::Bitmap> m_icon;
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bool m_text_is_secret { false };
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Optional<size_t> m_search_result_index;
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Vector<GUI::TextRange> m_search_results;
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};
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}
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