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/*
* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "AutoCompleteBox.h"
#include "Editor.h"
#include <LibGUI/Model.h>
#include <LibGUI/TableView.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
namespace HackStudio {
static RefPtr<Gfx::Bitmap> s_cplusplus_icon;
class AutoCompleteSuggestionModel final : public GUI::Model {
public:
explicit AutoCompleteSuggestionModel(Vector<String>&& suggestions)
: m_suggestions(move(suggestions))
{
}
enum Column {
Icon,
Name,
__Column_Count,
};
virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return m_suggestions.size(); }
virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return Column::__Column_Count; }
virtual GUI::Variant data(const GUI::ModelIndex& index, GUI::ModelRole role) const override
{
auto& suggestion = m_suggestions.at(index.row());
if (role == GUI::ModelRole::Display) {
if (index.column() == Column::Name) {
return suggestion;
}
if (index.column() == Column::Icon) {
// TODO: Have separate icons for fields, functions, methods etc
if (suggestion.ends_with(".cpp"))
return *s_cplusplus_icon;
return *s_cplusplus_icon;
}
}
return {};
}
virtual void update() override {};
private:
Vector<String> m_suggestions;
};
AutoCompleteBox::~AutoCompleteBox() {}
AutoCompleteBox::AutoCompleteBox(WeakPtr<Editor> editor)
: m_editor(move(editor))
{
if (!s_cplusplus_icon) {
s_cplusplus_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/filetype-cplusplus.png");
}
m_popup_window = GUI::Window::construct();
m_popup_window->set_window_type(GUI::WindowType::Tooltip);
m_popup_window->set_rect(0, 0, 200, 100);
m_suggestion_view = m_popup_window->set_main_widget<GUI::TableView>();
m_suggestion_view->set_column_headers_visible(false);
}
void AutoCompleteBox::update_suggestions(String partial_input, Vector<String>&& suggestions)
{
m_partial_input = partial_input;
if (suggestions.is_empty())
return;
bool has_suggestions = !suggestions.is_empty();
m_suggestion_view->set_model(adopt(*new AutoCompleteSuggestionModel(move(suggestions))));
if (!has_suggestions)
m_suggestion_view->selection().clear();
else
m_suggestion_view->selection().set(m_suggestion_view->model()->index(0));
}
void AutoCompleteBox::show(Gfx::IntPoint suggstion_box_location)
{
m_popup_window->move_to(suggstion_box_location);
m_popup_window->show();
}
void AutoCompleteBox::close()
{
m_partial_input.empty();
m_popup_window->hide();
}
void AutoCompleteBox::next_suggestion()
{
GUI::ModelIndex new_index = m_suggestion_view->selection().first();
if (new_index.is_valid())
new_index = m_suggestion_view->model()->index(new_index.row() + 1);
else
new_index = m_suggestion_view->model()->index(0);
if (m_suggestion_view->model()->is_valid(new_index)) {
m_suggestion_view->selection().set(new_index);
m_suggestion_view->scroll_into_view(new_index, Orientation::Vertical);
}
}
void AutoCompleteBox::previous_suggestion()
{
GUI::ModelIndex new_index = m_suggestion_view->selection().first();
if (new_index.is_valid())
new_index = m_suggestion_view->model()->index(new_index.row() - 1);
else
new_index = m_suggestion_view->model()->index(0);
if (m_suggestion_view->model()->is_valid(new_index)) {
m_suggestion_view->selection().set(new_index);
m_suggestion_view->scroll_into_view(new_index, Orientation::Vertical);
}
}
void AutoCompleteBox::apply_suggestion()
{
if (m_editor.is_null())
return;
auto selected_index = m_suggestion_view->selection().first();
if (!selected_index.is_valid())
return;
auto suggestion_index = m_suggestion_view->model()->index(selected_index.row(), AutoCompleteSuggestionModel::Column::Name);
auto suggestion = suggestion_index.data().to_string();
ASSERT(!m_partial_input.is_null());
ASSERT(suggestion.starts_with(m_partial_input));
auto completion = suggestion.substring(m_partial_input.length(), suggestion.length() - m_partial_input.length());
m_editor->insert_at_cursor_or_replace_selection(completion);
}
};
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