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/**
* Copyright (C) 2021-2024 Saturneric <[email protected]>
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "TextEditTabWidget.h"
#include "core/function/GlobalSettingStation.h"
#include "core/model/CacheObject.h"
#include "ui/widgets/PlainTextEditorPage.h"
#include "widgets/FilePage.h"
namespace GpgFrontend::UI {
TextEditTabWidget::TextEditTabWidget(QWidget* parent) : QTabWidget(parent) {
setAcceptDrops(true);
}
void TextEditTabWidget::dragEnterEvent(QDragEnterEvent* event) {
event->acceptProposedAction();
}
void TextEditTabWidget::dropEvent(QDropEvent* event) {
if (!event->mimeData()->hasUrls()) return;
auto urls = event->mimeData()->urls();
for (const auto& url : urls) {
QString local_file = url.toLocalFile();
QFileInfo file_info(local_file);
if (file_info.size() > static_cast<qint64>(1024 * 1024)) {
QMessageBox::warning(
this, tr("File Too Large"),
tr("The file \"%1\" is larger than 1MB and will not be opened.")
.arg(file_info.fileName()));
continue;
}
QFile file(local_file);
if (!file.open(QIODevice::ReadOnly)) {
QMessageBox::warning(
this, tr("File Open Error"),
tr("The file \"%1\" could not be opened.").arg(file_info.fileName()));
continue;
}
QByteArray file_data = file.read(1024);
file.close();
if (file_data.contains('\0')) {
QMessageBox::warning(this, tr("Binary File Detected"),
tr("The file \"%1\" appears to be a binary file "
"and will not be opened.")
.arg(file_info.fileName()));
continue;
}
SlotOpenFile(local_file);
}
event->acceptProposedAction();
}
void TextEditTabWidget::SlotOpenFile(const QString& path) {
QFile file(path);
auto result = file.open(QIODevice::ReadOnly | QIODevice::Text);
if (result) {
auto* page = new PlainTextEditorPage(path);
connect(page->GetTextPage()->document(),
&QTextDocument::modificationChanged, this,
&TextEditTabWidget::SlotShowModified);
// connect to cache recovery fucntion
connect(page->GetTextPage()->document(), &QTextDocument::contentsChanged,
this, &TextEditTabWidget::slot_save_status_to_cache_for_recovery);
QApplication::setOverrideCursor(Qt::WaitCursor);
auto index = this->addTab(page, stripped_name(path));
this->setTabIcon(index, QIcon(":/icons/file.png"));
this->setCurrentIndex(this->count() - 1);
QApplication::restoreOverrideCursor();
page->GetTextPage()->setFocus();
page->ReadFile();
} else {
QMessageBox::warning(
this, tr("Warning"),
tr("Cannot read file %1:\n%2.").arg(path).arg(file.errorString()));
}
file.close();
}
void TextEditTabWidget::SlotShowModified(bool changed) {
// get current tab
int index = this->currentIndex();
QString title = this->tabText(index);
// if changed
if (!changed) {
this->setTabText(index, title.remove(0, 2));
return;
}
// if doc is modified now, add leading * to title,
// otherwise remove the leading * from the title
if (CurTextPage()->GetTextPage()->document()->isModified()) {
this->setTabText(index, title.trimmed().prepend("* "));
} else {
this->setTabText(index, title.remove(0, 2));
}
}
auto TextEditTabWidget::CurTextPage() const -> PlainTextEditorPage* {
return qobject_cast<PlainTextEditorPage*>(this->currentWidget());
}
auto TextEditTabWidget::SlotCurPageTextEdit() -> PlainTextEditorPage* {
auto* cur_page = qobject_cast<PlainTextEditorPage*>(this->currentWidget());
return cur_page;
}
auto TextEditTabWidget::CurFilePage() const -> FilePage* {
auto* cur_file_page = qobject_cast<FilePage*>(this->currentWidget());
if (cur_file_page != nullptr) {
return cur_file_page;
}
return nullptr;
}
auto TextEditTabWidget::stripped_name(const QString& full_file_name)
-> QString {
return QFileInfo(full_file_name).fileName();
}
void TextEditTabWidget::slot_save_status_to_cache_for_recovery() {
if (this->text_page_data_modified_count_++ % 8 != 0) return;
auto settings = GlobalSettingStation::GetInstance().GetSettings();
bool restore_text_editor_page =
settings.value("basic/restore_text_editor_page", false).toBool();
if (!restore_text_editor_page) {
FLOG_D("restore_text_editor_page is false, ignoring...");
return;
}
int tab_count = this->count();
std::vector<std::tuple<int, QString, QString>> unsaved_pages;
for (int i = 0; i < tab_count; i++) {
auto* target_page = qobject_cast<PlainTextEditorPage*>(this->widget(i));
// if this page is no textedit, there should be nothing to save
if (target_page == nullptr) {
continue;
}
auto* document = target_page->GetTextPage()->document();
auto tab_title = this->tabText(i);
if (!target_page->ReadDone() || !target_page->isEnabled() ||
!document->isModified()) {
continue;
}
unsaved_pages.emplace_back(i, tab_title, document->toRawText());
}
CacheObject cache("editor_unsaved_pages");
QJsonArray unsaved_page_array;
for (const auto& page : unsaved_pages) {
const auto [index, title, content] = page;
QJsonObject page_json;
page_json["index"] = index;
page_json["title"] = title;
page_json["content"] = content;
unsaved_page_array.push_back(page_json);
}
cache.setArray(unsaved_page_array);
}
void TextEditTabWidget::SlotNewTab() {
QString header = tr("untitled") + QString::number(++count_page_) + ".txt";
auto* page = new PlainTextEditorPage();
auto index = this->addTab(page, header);
this->setTabIcon(index, QIcon(":/icons/file.png"));
this->setCurrentIndex(this->count() - 1);
page->GetTextPage()->setFocus();
connect(page->GetTextPage()->document(), &QTextDocument::modificationChanged,
this, &TextEditTabWidget::SlotShowModified);
connect(page->GetTextPage()->document(), &QTextDocument::contentsChanged,
this, &TextEditTabWidget::slot_save_status_to_cache_for_recovery);
}
void TextEditTabWidget::SlotNewTabWithContent(QString title,
const QString& content) {
QString header = tr("untitled") + QString::number(++count_page_) + ".txt";
if (!title.isEmpty()) {
// modify title
if (!title.isEmpty() && title[0] == '*') {
title.remove(0, 1);
}
// set title
header = title;
}
auto* page = new PlainTextEditorPage();
auto index = this->addTab(page, header);
this->setTabIcon(index, QIcon(":/icons/file.png"));
this->setCurrentIndex(this->count() - 1);
page->GetTextPage()->setFocus();
connect(page->GetTextPage()->document(), &QTextDocument::modificationChanged,
this, &TextEditTabWidget::SlotShowModified);
connect(page->GetTextPage()->document(), &QTextDocument::contentsChanged,
this, &TextEditTabWidget::slot_save_status_to_cache_for_recovery);
// set content with modified status
page->GetTextPage()->document()->setPlainText(content);
}
} // namespace GpgFrontend::UI
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