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HackStudio: Add FindWidget

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The find widget appears on Ctrl+F.

It uses the GUI::TextEditor search API to search for text, which also
takes care of highlighting the search results.
This commit is contained in:
Itamar 2022-03-29 16:45:26 +03:00 • committed by Andreas Kling
parent de902ab659
commit d9d299f884
8 changed files with 186 additions and 4 deletions
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83
Userland/DevTools/HackStudio/FindWidget.cpp Normal file
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/*
* Copyright (c) 2022, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "FindWidget.h"
#include "Editor.h"
#include <AK/QuickSort.h>
#include <DevTools/HackStudio/FindWidgetGML.h>
#include <LibGUI/BoxLayout.h>
#include <LibGfx/Palette.h>
namespace HackStudio {
FindWidget::FindWidget(NonnullRefPtr<Editor> editor)
: m_editor(move(editor))
{
load_from_gml(find_widget_gml);
set_fixed_height(widget_height);
m_input_field = find_descendant_of_type_named<GUI::TextBox>("input_field");
m_index_label = find_descendant_of_type_named<GUI::Label>("index_label");
m_next = find_descendant_of_type_named<GUI::Button>("next");
m_previous = find_descendant_of_type_named<GUI::Button>("previous");
VERIFY(m_input_field);
VERIFY(m_next);
VERIFY(m_previous);
m_next->on_click = [this](auto) {
find_next(GUI::TextEditor::SearchDirection::Forward);
};
m_previous->on_click = [this](auto) {
find_next(GUI::TextEditor::SearchDirection::Backward);
};
m_input_field->on_change = [this]() {
m_editor->reset_search_results();
find_next(GUI::TextEditor::SearchDirection::Forward);
};
m_input_field->on_return_pressed = [this]() {
find_next(GUI::TextEditor::SearchDirection::Forward);
};
}
void FindWidget::show()
{
set_visible(true);
set_focus(true);
m_input_field->set_focus(true);
// Adjust scroll value to smooth the appearance of the FindWidget.
m_editor->vertical_scrollbar().set_value(m_editor->vertical_scrollbar().value() + widget_height, GUI::AllowCallback::Yes, GUI::Scrollbar::DoClamp::No);
m_visible = !m_visible;
}
void FindWidget::hide()
{
set_visible(false);
set_focus(false);
m_visible = !m_visible;
m_editor->vertical_scrollbar().set_value(m_editor->vertical_scrollbar().value() - widget_height, GUI::AllowCallback::Yes, GUI::Scrollbar::DoClamp::No);
m_editor->set_focus(true);
m_editor->reset_search_results();
}
void FindWidget::find_next(GUI::TextEditor::SearchDirection direction)
{
auto needle = m_input_field->text();
if (needle.is_empty()) {
m_editor->reset_search_results();
m_index_label->set_text(String::empty());
return;
}
auto result = m_editor->find_text(needle, direction, GUI::TextDocument::SearchShouldWrap::Yes, false, false);
if (result.is_valid())
m_index_label->set_text(String::formatted("{}/{}", m_editor->search_result_index().value_or(0) + 1, m_editor->search_results().size()));
else
m_index_label->set_text(String::empty());
}
}