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LibGUI+HackStudio: Add an opt-in autocompletion interface to TextEditor

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...and use that to implement autocomplete in HackStudio.

Now everyone can have autocomplete :^)
This commit is contained in:
AnotherTest 2020-12-30 13:55:06 +03:30 • committed by Andreas Kling
parent 7e457b98c3
commit 20b74e4ede
19 changed files with 211 additions and 162 deletions
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62
Libraries/LibGUI/TextEditor.cpp
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@ -25,10 +25,12 @@
*/
#include <AK/QuickSort.h>
#include <AK/ScopeGuard.h>
#include <AK/StringBuilder.h>
#include <AK/TemporaryChange.h>
#include <LibCore/Timer.h>
#include <LibGUI/Action.h>
#include <LibGUI/AutocompleteProvider.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/InputBox.h>
#include <LibGUI/Menu.h>
@ -711,6 +713,27 @@ void TextEditor::sort_selected_lines()
void TextEditor::keydown_event(KeyEvent& event)
{
if (m_autocomplete_box && m_autocomplete_box->is_visible() && (event.key() == KeyCode::Key_Return || event.key() == KeyCode::Key_Tab)) {
m_autocomplete_box->apply_suggestion();
m_autocomplete_box->close();
return;
}
if (m_autocomplete_box && m_autocomplete_box->is_visible() && event.key() == KeyCode::Key_Escape) {
m_autocomplete_box->close();
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() && event.key() == KeyCode::Key_Tab)
return ScrollableWidget::keydown_event(event);
@ -720,6 +743,14 @@ void TextEditor::keydown_event(KeyEvent& event)
return;
}
ArmedScopeGuard update_autocomplete { [&] {
if (m_autocomplete_box && m_autocomplete_box->is_visible()) {
m_autocomplete_provider->provide_completions([&](auto completions) {
m_autocomplete_box->update_suggestions(move(completions));
});
}
} };
if (event.key() == KeyCode::Key_Escape) {
if (on_escape_pressed)
on_escape_pressed();
@ -997,6 +1028,18 @@ void TextEditor::keydown_event(KeyEvent& event)
return;
}
if (!event.shift() && !event.alt() && event.ctrl() && event.key() == KeyCode::Key_Space) {
if (m_autocomplete_provider) {
m_autocomplete_provider->provide_completions([&](auto completions) {
m_autocomplete_box->update_suggestions(move(completions));
auto position = content_rect_for_position(cursor()).bottom_right().translated(screen_relative_rect().top_left().translated(ruler_width(), 0).translated(10, 5));
m_autocomplete_box->show(position);
});
update_autocomplete.disarm();
return;
}
}
if (is_editable() && !event.ctrl() && !event.alt() && event.code_point() != 0) {
StringBuilder sb;
sb.append_code_point(event.code_point());
@ -1759,6 +1802,25 @@ void TextEditor::set_syntax_highlighter(OwnPtr<SyntaxHighlighter> highlighter)
document().set_spans({});
}
const AutocompleteProvider* 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)
m_autocomplete_box->close();
}
int TextEditor::line_height() const
{
return font().glyph_height() + m_line_spacing;