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HackStudio: Show tooltip with parameters hint when pressing Ctrl+P

Browse source 
When you press Ctrl+P while the cursor is inside the parameters list of
a function call site, HackStudio will request the C++ language server
to retrieve the parameters of the called function.

The result is displayed in a tooltip window, with the current argument
in bold font.
This commit is contained in:
Itamar 2021-07-03 12:05:29 +03:00 • committed by Andreas Kling
parent 32be65a8b4
commit f26f764c7d
2 changed files with 76 additions and 4 deletions
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74
Userland/DevTools/HackStudio/Editor.cpp
View file

@ -40,10 +40,8 @@ namespace HackStudio {
Editor::Editor()
{
set_document(CodeDocument::create());
m_documentation_tooltip_window = GUI::Window::construct();
m_documentation_tooltip_window->set_rect(0, 0, 500, 400);
m_documentation_tooltip_window->set_window_type(GUI::WindowType::Tooltip);
m_documentation_page_view = m_documentation_tooltip_window->set_main_widget<Web::OutOfProcessWebView>();
initialize_documentation_tooltip();
initialize_parameters_hint_tooltip();
m_evaluate_expression_action = GUI::Action::create("Evaluate expression", { Mod_Ctrl, Key_E }, [this](auto&) {
if (!execution_position().has_value()) {
GUI::MessageBox::show(window(), "Program is not running", "Error", GUI::MessageBox::Type::Error);
@ -74,6 +72,22 @@ Editor::~Editor()
{
}
void Editor::initialize_documentation_tooltip()
{
m_documentation_tooltip_window = GUI::Window::construct();
m_documentation_tooltip_window->set_rect(0, 0, 500, 400);
m_documentation_tooltip_window->set_window_type(GUI::WindowType::Tooltip);
m_documentation_page_view = m_documentation_tooltip_window->set_main_widget<Web::OutOfProcessWebView>();
}
void Editor::initialize_parameters_hint_tooltip()
{
m_parameters_hint_tooltip_window = GUI::Window::construct();
m_parameters_hint_tooltip_window->set_rect(0, 0, 280, 35);
m_parameters_hint_tooltip_window->set_window_type(GUI::WindowType::Tooltip);
m_parameter_hint_page_view = m_parameters_hint_tooltip_window->set_main_widget<Web::OutOfProcessWebView>();
}
EditorWrapper& Editor::wrapper()
{
return static_cast<EditorWrapper&>(*parent());
@ -287,6 +301,8 @@ void Editor::mousemove_event(GUI::MouseEvent& event)
void Editor::mousedown_event(GUI::MouseEvent& event)
{
m_parameters_hint_tooltip_window->hide();
auto highlighter = wrapper().editor().syntax_highlighter();
if (!highlighter) {
GUI::TextEditor::mousedown_event(event);
@ -566,6 +582,7 @@ void Editor::on_identifier_click(const GUI::TextDocumentSpan& span)
};
m_language_client->search_declaration(code_document().file_path(), span.range.start().line(), span.range.start().column());
}
void Editor::set_cursor(const GUI::TextPosition& a_position)
{
TextEditor::set_cursor(a_position);
@ -606,4 +623,53 @@ void Editor::set_language_client_for(const CodeDocument& document)
m_language_client = get_language_client<LanguageClients::Shell::ServerConnection>(project().root_path());
}
void Editor::keydown_event(GUI::KeyEvent& event)
{
TextEditor::keydown_event(event);
m_parameters_hint_tooltip_window->hide();
if (!event.shift() && !event.alt() && event.ctrl() && event.key() == KeyCode::Key_P) {
handle_function_parameters_hint_request();
}
}
void Editor::handle_function_parameters_hint_request()
{
VERIFY(m_language_client);
m_language_client->on_function_parameters_hint_result = [this](Vector<String> const& params, size_t argument_index) {
dbgln("on_function_parameters_hint_result");
StringBuilder html;
for (size_t i = 0; i < params.size(); ++i) {
if (i == argument_index)
html.append("<b>");
html.appendff("{}", params[i]);
if (i == argument_index)
html.append("</b>");
if (i < params.size() - 1)
html.append(", ");
}
html.append("<style>body { background-color: #dac7b5; }</style>");
m_parameter_hint_page_view->load_html(html.build(), {});
auto cursor_rect = current_editor().cursor_content_rect().location().translated(screen_relative_rect().location());
Gfx::Rect content(cursor_rect.x(), cursor_rect.y(), m_parameter_hint_page_view->children_clip_rect().width(), m_parameter_hint_page_view->children_clip_rect().height());
m_parameters_hint_tooltip_window->move_to(cursor_rect.x(), cursor_rect.y() - m_parameters_hint_tooltip_window->height() - vertical_scrollbar().value());
m_parameters_hint_tooltip_window->show();
};
m_language_client->get_parameters_hint(
code_document().file_path(),
cursor().line(),
cursor().column());
}
}