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ladybird/Userland/Applications/HexEditor/HexEditorWidget.cpp
Max Wipfli 229414b002 Applications: Use titlecase and distinct underlined characters in menus 
This changes (context) menus across the system to conform to titlecase
capitalization and to not underline the same character twice (for
accessing actions with Alt).
2021-05-21 18:41:28 +01:00

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "HexEditorWidget.h"
#include "FindDialog.h"
#include <AK/Optional.h>
#include <AK/StringBuilder.h>
#include <LibCore/File.h>
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/InputBox.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Statusbar.h>
#include <LibGUI/TextBox.h>
#include <LibGUI/TextEditor.h>
#include <LibGUI/Toolbar.h>
#include <stdio.h>
#include <string.h>
HexEditorWidget::HexEditorWidget()
{
set_fill_with_background_color(true);
set_layout<GUI::VerticalBoxLayout>();
layout()->set_spacing(2);
m_editor = add<HexEditor>();
m_editor->on_status_change = [this](int position, HexEditor::EditMode edit_mode, int selection_start, int selection_end) {
m_statusbar->set_text(0, String::formatted("Offset: {:#08X}", position));
m_statusbar->set_text(1, String::formatted("Edit Mode: {}", edit_mode == HexEditor::EditMode::Hex ? "Hex" : "Text"));
m_statusbar->set_text(2, String::formatted("Selection Start: {}", selection_start));
m_statusbar->set_text(3, String::formatted("Selection End: {}", selection_end));
m_statusbar->set_text(4, String::formatted("Selected Bytes: {}", abs(selection_end - selection_start) + 1));
};
m_editor->on_change = [this] {
bool was_dirty = m_document_dirty;
m_document_dirty = true;
if (!was_dirty)
update_title();
};
m_statusbar = add<GUI::Statusbar>(5);
m_new_action = GUI::Action::create("New", { Mod_Ctrl, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/new.png"), [this](const GUI::Action&) {
if (m_document_dirty) {
if (GUI::MessageBox::show(window(), "Save changes to current file first?", "Warning", GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::OKCancel) != GUI::Dialog::ExecResult::ExecOK)
return;
m_save_action->activate();
}
String value;
if (GUI::InputBox::show(window(), value, "Enter new file size:", "New file size") == GUI::InputBox::ExecOK && !value.is_empty()) {
auto file_size = value.to_int();
if (file_size.has_value() && file_size.value() > 0) {
m_document_dirty = false;
m_editor->set_buffer(ByteBuffer::create_zeroed(file_size.value()));
set_path(LexicalPath());
update_title();
} else {
GUI::MessageBox::show(window(), "Invalid file size entered.", "Error", GUI::MessageBox::Type::Error);
}
}
});
m_open_action = GUI::CommonActions::make_open_action([this](auto&) {
Optional<String> open_path = GUI::FilePicker::get_open_filepath(window());
if (!open_path.has_value())
return;
open_file(open_path.value());
});
m_save_action = GUI::CommonActions::make_save_action([&](auto&) {
if (!m_path.is_empty()) {
if (!m_editor->write_to_file(m_path)) {
GUI::MessageBox::show(window(), "Unable to save file.\n", "Error", GUI::MessageBox::Type::Error);
} else {
m_document_dirty = false;
update_title();
}
return;
}
m_save_as_action->activate();
});
m_save_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
Optional<String> save_path = GUI::FilePicker::get_save_filepath(window(), m_name.is_null() ? "Untitled" : m_name, m_extension.is_null() ? "bin" : m_extension);
if (!save_path.has_value())
return;
if (!m_editor->write_to_file(save_path.value())) {
GUI::MessageBox::show(window(), "Unable to save file.\n", "Error", GUI::MessageBox::Type::Error);
return;
}
m_document_dirty = false;
set_path(LexicalPath(save_path.value()));
dbgln("Wrote document to {}", save_path.value());
});
m_editor->set_focus(true);
}
HexEditorWidget::~HexEditorWidget()
{
}
void HexEditorWidget::initialize_menubar(GUI::Menubar& menubar)
{
auto& file_menu = menubar.add_menu("&File");
file_menu.add_action(*m_new_action);
file_menu.add_action(*m_open_action);
file_menu.add_action(*m_save_action);
file_menu.add_action(*m_save_as_action);
file_menu.add_separator();
file_menu.add_action(GUI::CommonActions::make_quit_action([this](auto&) {
if (!request_close())
return;
GUI::Application::the()->quit();
}));
m_goto_decimal_offset_action = GUI::Action::create("&Go to Offset (Decimal)...", { Mod_Ctrl | Mod_Shift, Key_G }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"), [this](const GUI::Action&) {
String value;
if (GUI::InputBox::show(window(), value, "Enter decimal offset:", "Go to Offset") == GUI::InputBox::ExecOK && !value.is_empty()) {
auto new_offset = value.to_int();
if (new_offset.has_value())
m_editor->set_position(new_offset.value());
}
});
m_goto_hex_offset_action = GUI::Action::create("Go to &Offset (Hex)...", { Mod_Ctrl, Key_G }, Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"), [this](const GUI::Action&) {
String value;
if (GUI::InputBox::show(window(), value, "Enter hexadecimal offset:", "Go to Offset") == GUI::InputBox::ExecOK && !value.is_empty()) {
auto new_offset = strtol(value.characters(), nullptr, 16);
m_editor->set_position(new_offset);
}
});
auto& edit_menu = menubar.add_menu("&Edit");
edit_menu.add_action(GUI::Action::create("Fill &Selection...", { Mod_Ctrl, Key_B }, [&](const GUI::Action&) {
String value;
if (GUI::InputBox::show(window(), value, "Fill byte (hex):", "Fill Selection") == GUI::InputBox::ExecOK && !value.is_empty()) {
auto fill_byte = strtol(value.characters(), nullptr, 16);
m_editor->fill_selection(fill_byte);
}
}));
edit_menu.add_separator();
edit_menu.add_action(*m_goto_decimal_offset_action);
edit_menu.add_action(*m_goto_hex_offset_action);
edit_menu.add_separator();
edit_menu.add_action(GUI::Action::create("Copy &Hex", { Mod_Ctrl, Key_C }, [&](const GUI::Action&) {
m_editor->copy_selected_hex_to_clipboard();
}));
edit_menu.add_action(GUI::Action::create("Copy &Text", { Mod_Ctrl | Mod_Shift, Key_C }, Gfx::Bitmap::load_from_file("/res/icons/16x16/edit-copy.png"), [&](const GUI::Action&) {
m_editor->copy_selected_text_to_clipboard();
}));
edit_menu.add_action(GUI::Action::create("Copy as &C Code", { Mod_Alt | Mod_Shift, Key_C }, [&](const GUI::Action&) {
m_editor->copy_selected_hex_to_clipboard_as_c_code();
}));
edit_menu.add_separator();
edit_menu.add_action(GUI::Action::create("&Find", { Mod_Ctrl, Key_F }, Gfx::Bitmap::load_from_file("/res/icons/16x16/find.png"), [&](const GUI::Action&) {
auto old_buffer = m_search_buffer;
if (FindDialog::show(window(), m_search_text, m_search_buffer) == GUI::InputBox::ExecOK) {
bool same_buffers = false;
if (old_buffer.size() == m_search_buffer.size()) {
if (memcmp(old_buffer.data(), m_search_buffer.data(), old_buffer.size()) == 0)
same_buffers = true;
}
auto result = m_editor->find_and_highlight(m_search_buffer, same_buffers ? last_found_index() : 0);
if (result == -1) {
GUI::MessageBox::show(window(), String::formatted("Pattern \"{}\" not found in this file", m_search_text), "Not found", GUI::MessageBox::Type::Warning);
return;
}
m_last_found_index = result;
}
}));
edit_menu.add_action(GUI::Action::create("Find &Next", { Mod_None, Key_F3 }, Gfx::Bitmap::load_from_file("/res/icons/16x16/find-next.png"), [&](const GUI::Action&) {
if (m_search_text.is_empty() || m_search_buffer.is_empty()) {
GUI::MessageBox::show(window(), "Nothing to search for", "Not found", GUI::MessageBox::Type::Warning);
return;
}
auto result = m_editor->find_and_highlight(m_search_buffer, last_found_index());
if (!result) {
GUI::MessageBox::show(window(), String::formatted("No more matches for \"{}\" found in this file", m_search_text), "Not found", GUI::MessageBox::Type::Warning);
return;
}
m_editor->update();
m_last_found_index = result;
}));
auto& view_menu = menubar.add_menu("&View");
m_bytes_per_row_actions.set_exclusive(true);
auto& bytes_per_row_menu = view_menu.add_submenu("Bytes per &Row");
for (int i = 8; i <= 32; i += 8) {
auto action = GUI::Action::create_checkable(String::number(i), [this, i](auto&) {
m_editor->set_bytes_per_row(i);
m_editor->update();
});
m_bytes_per_row_actions.add_action(action);
bytes_per_row_menu.add_action(action);
if (i == 16)
action->set_checked(true);
}
auto& help_menu = menubar.add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_about_action("Hex Editor", GUI::Icon::default_icon("app-hex-editor"), window()));
}
void HexEditorWidget::set_path(const LexicalPath& lexical_path)
{
m_path = lexical_path.string();
m_name = lexical_path.title();
m_extension = lexical_path.extension();
update_title();
}
void HexEditorWidget::update_title()
{
StringBuilder builder;
builder.append(m_path);
if (m_document_dirty)
builder.append(" (*)");
builder.append(" - Hex Editor");
window()->set_title(builder.to_string());
}
void HexEditorWidget::open_file(const String& path)
{
auto file = Core::File::construct(path);
if (!file->open(Core::OpenMode::ReadOnly)) {
GUI::MessageBox::show(window(), String::formatted("Opening \"{}\" failed: {}", path, strerror(errno)), "Error", GUI::MessageBox::Type::Error);
return;
}
m_document_dirty = false;
m_editor->set_buffer(file->read_all()); // FIXME: On really huge files, this is never going to work. Should really create a framework to fetch data from the file on-demand.
set_path(LexicalPath(path));
}
bool HexEditorWidget::request_close()
{
if (!m_document_dirty)
return true;
auto result = GUI::MessageBox::show(window(), "The file has been modified. Quit without saving?", "Quit without saving?", GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::OKCancel);
return result == GUI::MessageBox::ExecOK;
}
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