rssguard/src/gui/feedmessageviewer.cpp
2017-03-07 09:23:37 +01:00

317 lines
11 KiB
C++
Executable file

// This file is part of RSS Guard.
//
// Copyright (C) 2011-2016 by Martin Rotter <rotter.martinos@gmail.com>
//
// RSS Guard 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.
//
// RSS Guard 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 RSS Guard. If not, see <http://www.gnu.org/licenses/>.
#include "gui/feedmessageviewer.h"
#include "miscellaneous/settings.h"
#include "miscellaneous/databasefactory.h"
#include "miscellaneous/systemfactory.h"
#include "miscellaneous/iconfactory.h"
#include "miscellaneous/mutex.h"
#include "miscellaneous/databasecleaner.h"
#include "miscellaneous/feedreader.h"
#include "core/messagesproxymodel.h"
#include "core/feeddownloader.h"
#include "core/feedsproxymodel.h"
#include "services/standard/standardserviceroot.h"
#include "services/standard/standardfeed.h"
#include "services/standard/standardfeedsimportexportmodel.h"
#include "gui/messagesview.h"
#include "gui/feedsview.h"
#include "gui/statusbar.h"
#include "gui/systemtrayicon.h"
#include "gui/messagebox.h"
#include "gui/messagestoolbar.h"
#include "gui/feedstoolbar.h"
#include "gui/dialogs/formdatabasecleanup.h"
#include "gui/dialogs/formmain.h"
#include "exceptions/applicationexception.h"
#if defined(USE_WEBENGINE)
#include "gui/webbrowser.h"
#else
#include "gui/messagepreviewer.h"
#endif
#include <QVBoxLayout>
#include <QSplitter>
#include <QToolBar>
#include <QDebug>
#include <QLineEdit>
#include <QAction>
#include <QToolButton>
#include <QMenu>
#include <QWidgetAction>
#include <QThread>
#include <QProgressBar>
#include <QStatusBar>
#include <QPointer>
FeedMessageViewer::FeedMessageViewer(QWidget *parent)
: TabContent(parent),
m_toolBarsEnabled(true),
m_listHeadersEnabled(true),
m_toolBarFeeds(new FeedsToolBar(tr("Toolbar for feeds"), this)),
m_toolBarMessages(new MessagesToolBar(tr("Toolbar for messages"), this)),
m_messagesView(new MessagesView(this)),
m_feedsView(new FeedsView(this)),
#if defined(USE_WEBENGINE)
m_messagesBrowser(new WebBrowser(this)) {
#else
m_messagesBrowser(new MessagePreviewer(this)) {
#endif
initialize();
initializeViews();
loadMessageViewerFonts();
createConnections();
}
FeedMessageViewer::~FeedMessageViewer() {
qDebug("Destroying FeedMessageViewer instance.");
}
#if defined(USE_WEBENGINE)
WebBrowser *FeedMessageViewer::webBrowser() const {
return m_messagesBrowser;
}
#endif
FeedsView *FeedMessageViewer::feedsView() const {
return m_feedsView;
}
MessagesView *FeedMessageViewer::messagesView() const {
return m_messagesView;
}
MessagesToolBar *FeedMessageViewer::messagesToolBar() const {
return m_toolBarMessages;
}
FeedsToolBar *FeedMessageViewer::feedsToolBar() const {
return m_toolBarFeeds;
}
void FeedMessageViewer::saveSize() {
Settings *settings = qApp->settings();
m_feedsView->saveAllExpandStates();
// Store offsets of splitters.
settings->setValue(GROUP(GUI), GUI::SplitterFeeds, QString(m_feedSplitter->saveState().toBase64()));
settings->setValue(GROUP(GUI), GUI::SplitterMessages, QString(m_messageSplitter->saveState().toBase64()));
// States of splitters are stored, let's store
// widths of columns.
int width_column_author = m_messagesView->columnWidth(MSG_DB_AUTHOR_INDEX);
int width_column_date = m_messagesView->columnWidth(MSG_DB_DCREATED_INDEX);
if (width_column_author != 0 && width_column_date != 0) {
settings->setValue(GROUP(GUI), KEY_MESSAGES_VIEW + QString::number(MSG_DB_AUTHOR_INDEX), width_column_author);
settings->setValue(GROUP(GUI), KEY_MESSAGES_VIEW + QString::number(MSG_DB_DCREATED_INDEX), width_column_date);
}
// Store "visibility" of toolbars and list headers.
settings->setValue(GROUP(GUI), GUI::ToolbarsVisible, m_toolBarsEnabled);
settings->setValue(GROUP(GUI), GUI::ListHeadersVisible, m_listHeadersEnabled);
}
void FeedMessageViewer::loadSize() {
const Settings *settings = qApp->settings();
const int default_msg_section_size = m_messagesView->header()->defaultSectionSize();
// Restore offsets of splitters.
m_feedSplitter->restoreState(QByteArray::fromBase64(settings->value(GROUP(GUI), SETTING(GUI::SplitterFeeds)).toString().toLocal8Bit()));
m_messageSplitter->restoreState(QByteArray::fromBase64(settings->value(GROUP(GUI), SETTING(GUI::SplitterMessages)).toString().toLocal8Bit()));
// Splitters are restored, now, restore widths of columns.
m_messagesView->setColumnWidth(MSG_DB_AUTHOR_INDEX, settings->value(GROUP(GUI),
KEY_MESSAGES_VIEW + QString::number(MSG_DB_AUTHOR_INDEX),
default_msg_section_size).toInt());
m_messagesView->setColumnWidth(MSG_DB_DCREATED_INDEX, settings->value(GROUP(GUI),
KEY_MESSAGES_VIEW + QString::number(MSG_DB_DCREATED_INDEX),
default_msg_section_size).toInt());
}
void FeedMessageViewer::loadMessageViewerFonts() {
m_messagesBrowser->reloadFontSettings();
}
bool FeedMessageViewer::areToolBarsEnabled() const {
return m_toolBarsEnabled;
}
bool FeedMessageViewer::areListHeadersEnabled() const {
return m_listHeadersEnabled;
}
void FeedMessageViewer::switchMessageSplitterOrientation() {
if (m_messageSplitter->orientation() == Qt::Vertical) {
m_messageSplitter->setOrientation(Qt::Horizontal);
}
else {
m_messageSplitter->setOrientation(Qt::Vertical);
}
}
void FeedMessageViewer::setToolBarsEnabled(bool enable) {
m_toolBarsEnabled = enable;
m_toolBarFeeds->setVisible(enable);
m_toolBarMessages->setVisible(enable);
}
void FeedMessageViewer::setListHeadersEnabled(bool enable) {
m_listHeadersEnabled = enable;
m_feedsView->header()->setVisible(enable);
m_messagesView->header()->setVisible(enable);
}
void FeedMessageViewer::switchFeedComponentVisibility() {
QAction *sen = qobject_cast<QAction*>(sender());
if (sen != nullptr) {
m_feedsWidget->setVisible(sen->isChecked());
}
else {
m_feedsWidget->setVisible(!m_feedsWidget->isVisible());
}
}
void FeedMessageViewer::toggleShowOnlyUnreadFeeds() {
const QAction *origin = qobject_cast<QAction*>(sender());
if (origin == nullptr) {
m_feedsView->model()->invalidateReadFeedsFilter(true, false);
}
else {
m_feedsView->model()->invalidateReadFeedsFilter(true, origin->isChecked());
}
}
void FeedMessageViewer::createConnections() {
// Filtering & searching.
connect(m_toolBarMessages, &MessagesToolBar::messageSearchPatternChanged, m_messagesView, &MessagesView::searchMessages);
connect(m_toolBarMessages, &MessagesToolBar::messageFilterChanged, m_messagesView, &MessagesView::filterMessages);
#if defined(USE_WEBENGINE)
connect(m_messagesView, &MessagesView::currentMessageRemoved, m_messagesBrowser, &WebBrowser::clear);
connect(m_messagesView, &MessagesView::currentMessageChanged, m_messagesBrowser, &WebBrowser::loadMessage);
connect(m_messagesBrowser, &WebBrowser::markMessageRead,
m_messagesView->sourceModel(), &MessagesModel::setMessageReadById);
connect(m_messagesBrowser, &WebBrowser::markMessageImportant,
m_messagesView->sourceModel(), &MessagesModel::setMessageImportantById);
#else
connect(m_messagesView, &MessagesView::currentMessageRemoved, m_messagesBrowser, &MessagePreviewer::clear);
connect(m_messagesView, &MessagesView::currentMessageChanged, m_messagesBrowser, &MessagePreviewer::loadMessage);
connect(m_messagesBrowser, &MessagePreviewer::markMessageRead,
m_messagesView->sourceModel(), &MessagesModel::setMessageReadById);
connect(m_messagesBrowser, &MessagePreviewer::markMessageImportant,
m_messagesView->sourceModel(), &MessagesModel::setMessageImportantById);
#endif
// If user selects feeds, load their messages.
connect(m_feedsView, &FeedsView::itemSelected, m_messagesView, &MessagesView::loadItem);
// State of many messages is changed, then we need
// to reload selections.
connect(m_feedsView->sourceModel(), &FeedsModel::reloadMessageListRequested,
m_messagesView, &MessagesView::reloadSelections);
}
void FeedMessageViewer::initialize() {
// Initialize/populate toolbars.
m_toolBarFeeds->setFloatable(false);
m_toolBarFeeds->setMovable(false);
m_toolBarFeeds->setAllowedAreas(Qt::TopToolBarArea);
m_toolBarMessages->setFloatable(false);
m_toolBarMessages->setMovable(false);
m_toolBarMessages->setAllowedAreas(Qt::TopToolBarArea);
m_toolBarFeeds->loadChangeableActions();
m_toolBarMessages->loadChangeableActions();
m_messagesBrowser->clear();
// Now refresh visual setup.
refreshVisualProperties();
}
void FeedMessageViewer::initializeViews() {
m_feedsWidget = new QWidget(this);
m_messagesWidget = new QWidget(this);
m_feedSplitter = new QSplitter(Qt::Horizontal, this);
m_messageSplitter = new QSplitter(Qt::Vertical, this);
// Instantiate needed components.
QVBoxLayout *central_layout = new QVBoxLayout(this);
QVBoxLayout *feed_layout = new QVBoxLayout(m_feedsWidget);
QVBoxLayout *message_layout = new QVBoxLayout(m_messagesWidget);
// Set layout properties.
central_layout->setMargin(0);
central_layout->setSpacing(0);
feed_layout->setMargin(0);
feed_layout->setSpacing(0);
message_layout->setMargin(0);
message_layout->setSpacing(0);
// Set views.
m_feedsView->setFrameStyle(QFrame::NoFrame);
m_messagesView->setFrameStyle(QFrame::NoFrame);
// Setup message splitter.
m_messageSplitter->setObjectName(QSL("MessageSplitter"));
m_messageSplitter->setHandleWidth(1);
m_messageSplitter->setOpaqueResize(false);
m_messageSplitter->setChildrenCollapsible(false);
m_messageSplitter->addWidget(m_messagesView);
m_messageSplitter->addWidget(m_messagesBrowser);
// Assemble message-related components to single widget.
message_layout->addWidget(m_toolBarMessages);
message_layout->addWidget(m_messageSplitter);
// Assemble feed-related components to another widget.
feed_layout->addWidget(m_toolBarFeeds);
feed_layout->addWidget(m_feedsView);
// Assembler everything together.
m_feedSplitter->setHandleWidth(1);
m_feedSplitter->setOpaqueResize(false);
m_feedSplitter->setChildrenCollapsible(false);
m_feedSplitter->addWidget(m_feedsWidget);
m_feedSplitter->addWidget(m_messagesWidget);
// Add toolbar and main feeds/messages widget to main layout.
central_layout->addWidget(m_feedSplitter);
setTabOrder(m_feedsView, m_messagesView);
setTabOrder(m_messagesView, m_toolBarFeeds);
setTabOrder(m_toolBarFeeds, m_toolBarMessages);
setTabOrder(m_toolBarMessages, m_messagesBrowser);
}
void FeedMessageViewer::refreshVisualProperties() {
const Qt::ToolButtonStyle button_style = static_cast<Qt::ToolButtonStyle>(qApp->settings()->value(GROUP(GUI),
SETTING(GUI::ToolbarStyle)).toInt());
m_toolBarFeeds->setToolButtonStyle(button_style);
m_toolBarMessages->setToolButtonStyle(button_style);
}