/*

* Copyright (c) 2010-2016 Isode Limited.

* All rights reserved.

* See the COPYING file for more information.

*/

#include <Swift/QtUI/QtChatTabs.h>

#include <algorithm>

#include <vector>

#include <QAction>

#include <QApplication>

#include <QCloseEvent>

#include <QCursor>

#include <QDesktopWidget>

#include <QLayout>

#include <QMenu>

#include <QTabBar>

#include <QTabWidget>

#include <QtGlobal>

#include <Swiften/Base/Log.h>

#include <Swift/Controllers/ChatMessageSummarizer.h>

#include <Swift/QtUI/QtSwiftUtil.h>

#include <Swift/QtUI/QtTabWidget.h>

#include <Swift/QtUI/QtTabbable.h>

#include <Swift/QtUI/Trellis/QtDynamicGridLayout.h>

#include <Swift/QtUI/Trellis/QtGridSelectionDialog.h>

namespace Swift {

QtChatTabs::QtChatTabs(bool singleWindow, SettingsProvider* settingsProvider, bool trellisMode) : QWidget(), singleWindow_(singleWindow), settingsProvider_(settingsProvider), trellisMode_(trellisMode), dynamicGrid_(nullptr), gridSelectionDialog_(nullptr) {

#ifndef Q_OS_MAC

setWindowIcon(QIcon(":/logo-chat-16.png"));

#else

setAttribute(Qt::WA_ShowWithoutActivating);

#endif

dynamicGrid_ = new QtDynamicGridLayout(this, trellisMode);

connect(dynamicGrid_, SIGNAL(tabCloseRequested(int)), this, SLOT(handleTabCloseRequested(int)));

connect(dynamicGrid_, SIGNAL(onCurrentIndexChanged(int)), this, SLOT(handleCurrentTabIndexChanged(int)));

QVBoxLayout *layout = new QVBoxLayout;

layout->setSpacing(0);

layout->setContentsMargins(0, 0, 0, 0);

layout->addWidget(dynamicGrid_);

setLayout(layout);

if (trellisMode) {

// restore size

if (!gridSizeString.empty()) {

QByteArray gridSizeData = QByteArray::fromBase64(P2QSTRING(gridSizeString).toUtf8());

QDataStream dataStreamGridSize(&gridSizeData, QIODevice::ReadWrite);

QSize gridSize(1,1);

dataStreamGridSize >> gridSize;

dynamicGrid_->setDimensions(gridSize);

}

// restore positions

if (!tabPositionsString.empty()) {

QByteArray tabPositionsData = QByteArray::fromBase64(P2QSTRING(tabPositionsString).toUtf8());

QDataStream inTabPositions(&tabPositionsData, QIODevice::ReadWrite);

QHash<QString, QPoint> tabPositions;

inTabPositions >> tabPositions;

dynamicGrid_->setTabPositions(tabPositions);

}

}

gridSelectionDialog_ = new QtGridSelectionDialog();

// setup shortcuts

shortcuts_ << new QShortcut(QKeySequence(tr("CTRL+W", "Close chat tab.")), window(), SLOT(handleCloseTabShortcut()));

shortcuts_ << new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_PageUp), window(), SLOT(handleRequestedPreviousTab()));

shortcuts_ << new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_PageDown), window(), SLOT(handleRequestedNextTab()));

shortcuts_ << new QShortcut(QKeySequence(Qt::ALT + Qt::Key_A), window(), SLOT(handleRequestedActiveTab()));

}

QtChatTabs::~QtChatTabs() {

foreach (QShortcut* shortcut, shortcuts_) {

delete shortcut;

}

if (trellisMode_) {

storeTabPositions();

}

delete gridSelectionDialog_;

}

void QtChatTabs::closeEvent(QCloseEvent* event) {

unreads.push_back(std::pair<std::string, int>(Q2PSTRING(tab->windowTitle()), tab->getCount()));

}

}

std::string current(Q2PSTRING(qobject_cast<QtTabbable*>(dynamicGrid_->currentWidget())->windowTitle()));

ChatMessageSummarizer summary;

QString title = summary.getSummary(current, unreads).c_str();

setWindowTitle(title);

emit onTitleChanged(title);

}

void QtChatTabs::flash() {

#ifndef SWIFTEN_PLATFORM_MACOSX

QApplication::alert(this, 0);

#endif

}

void QtChatTabs::handleOpenLayoutChangeDialog() {

disconnect(gridSelectionDialog_, SIGNAL(currentGridSizeChanged(QSize)), dynamicGrid_, SLOT(setDimensions(QSize)));

gridSelectionDialog_->setCurrentGridSize(dynamicGrid_->getDimension());

gridSelectionDialog_->move(QCursor::pos());

connect(gridSelectionDialog_, SIGNAL(currentGridSizeChanged(QSize)), dynamicGrid_, SLOT(setDimensions(QSize)));

gridSelectionDialog_->show();

}

void QtChatTabs::storeTabPositions() {

// save size

QByteArray gridSizeData;

QDataStream dataStreamGridSize(&gridSizeData, QIODevice::ReadWrite);

dataStreamGridSize << dynamicGrid_->getDimension();

// save positions

QByteArray tabPositionsData;

QDataStream dataStreamTabPositions(&tabPositionsData, QIODevice::ReadWrite);

dynamicGrid_->updateTabPositions();

dataStreamTabPositions << dynamicGrid_->getTabPositions();

}

void QtChatTabs::resizeEvent(QResizeEvent*) {

emit geometryChanged();

}

void QtChatTabs::moveEvent(QMoveEvent*) {

emit geometryChanged();

}

void QtChatTabs::checkForFirstShow() {

if (!isVisible()) {

#ifndef Q_OS_MAC

showMinimized();

#else

/* https://bugreports.qt-project.org/browse/QTBUG-19194

* ^ When the above is fixed we can swap the below for just show();

* WA_ShowWithoutActivating seems to helpfully not work, so... */

QWidget* currentWindow = QApplication::activeWindow(); /* Remember who had focus if we're the current application*/

show();

QCoreApplication::processEvents(); /* Run through the eventloop to clear the show() */

if (currentWindow) {

currentWindow->activateWindow(); /* Set focus back */

}

#endif

}

}

}