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Diffstat (limited to 'examples/gestures/browser/history.cpp')
| -rw-r--r-- | examples/gestures/browser/history.cpp | 1282 |
1 files changed, 0 insertions, 1282 deletions
diff --git a/examples/gestures/browser/history.cpp b/examples/gestures/browser/history.cpp deleted file mode 100644 index 0e0652d..0000000 --- a/examples/gestures/browser/history.cpp +++ /dev/null @@ -1,1282 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://www.qtsoftware.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "history.h" - -#include "autosaver.h" -#include "browserapplication.h" - -#include <QtCore/QBuffer> -#include <QtCore/QDir> -#include <QtCore/QFile> -#include <QtCore/QFileInfo> -#include <QtCore/QSettings> -#include <QtCore/QTemporaryFile> -#include <QtCore/QTextStream> - -#include <QtCore/QtAlgorithms> - -#include <QtGui/QClipboard> -#include <QtGui/QDesktopServices> -#include <QtGui/QHeaderView> -#include <QtGui/QStyle> - -#include <QtWebKit/QWebHistoryInterface> -#include <QtWebKit/QWebSettings> - -#include <QtCore/QDebug> - -static const unsigned int HISTORY_VERSION = 23; - -HistoryManager::HistoryManager(QObject *parent) - : QWebHistoryInterface(parent) - , m_saveTimer(new AutoSaver(this)) - , m_historyLimit(30) - , m_historyModel(0) - , m_historyFilterModel(0) - , m_historyTreeModel(0) -{ - m_expiredTimer.setSingleShot(true); - connect(&m_expiredTimer, SIGNAL(timeout()), - this, SLOT(checkForExpired())); - connect(this, SIGNAL(entryAdded(const HistoryItem &)), - m_saveTimer, SLOT(changeOccurred())); - connect(this, SIGNAL(entryRemoved(const HistoryItem &)), - m_saveTimer, SLOT(changeOccurred())); - load(); - - m_historyModel = new HistoryModel(this, this); - m_historyFilterModel = new HistoryFilterModel(m_historyModel, this); - m_historyTreeModel = new HistoryTreeModel(m_historyFilterModel, this); - - // QWebHistoryInterface will delete the history manager - QWebHistoryInterface::setDefaultInterface(this); -} - -HistoryManager::~HistoryManager() -{ - m_saveTimer->saveIfNeccessary(); -} - -QList<HistoryItem> HistoryManager::history() const -{ - return m_history; -} - -bool HistoryManager::historyContains(const QString &url) const -{ - return m_historyFilterModel->historyContains(url); -} - -void HistoryManager::addHistoryEntry(const QString &url) -{ - QUrl cleanUrl(url); - cleanUrl.setPassword(QString()); - cleanUrl.setHost(cleanUrl.host().toLower()); - HistoryItem item(cleanUrl.toString(), QDateTime::currentDateTime()); - addHistoryItem(item); -} - -void HistoryManager::setHistory(const QList<HistoryItem> &history, bool loadedAndSorted) -{ - m_history = history; - - // verify that it is sorted by date - if (!loadedAndSorted) - qSort(m_history.begin(), m_history.end()); - - checkForExpired(); - - if (loadedAndSorted) { - m_lastSavedUrl = m_history.value(0).url; - } else { - m_lastSavedUrl = QString(); - m_saveTimer->changeOccurred(); - } - emit historyReset(); -} - -HistoryModel *HistoryManager::historyModel() const -{ - return m_historyModel; -} - -HistoryFilterModel *HistoryManager::historyFilterModel() const -{ - return m_historyFilterModel; -} - -HistoryTreeModel *HistoryManager::historyTreeModel() const -{ - return m_historyTreeModel; -} - -void HistoryManager::checkForExpired() -{ - if (m_historyLimit < 0 || m_history.isEmpty()) - return; - - QDateTime now = QDateTime::currentDateTime(); - int nextTimeout = 0; - - while (!m_history.isEmpty()) { - QDateTime checkForExpired = m_history.last().dateTime; - checkForExpired.setDate(checkForExpired.date().addDays(m_historyLimit)); - if (now.daysTo(checkForExpired) > 7) { - // check at most in a week to prevent int overflows on the timer - nextTimeout = 7 * 86400; - } else { - nextTimeout = now.secsTo(checkForExpired); - } - if (nextTimeout > 0) - break; - HistoryItem item = m_history.takeLast(); - // remove from saved file also - m_lastSavedUrl = QString(); - emit entryRemoved(item); - } - - if (nextTimeout > 0) - m_expiredTimer.start(nextTimeout * 1000); -} - -void HistoryManager::addHistoryItem(const HistoryItem &item) -{ - QWebSettings *globalSettings = QWebSettings::globalSettings(); - if (globalSettings->testAttribute(QWebSettings::PrivateBrowsingEnabled)) - return; - - m_history.prepend(item); - emit entryAdded(item); - if (m_history.count() == 1) - checkForExpired(); -} - -void HistoryManager::updateHistoryItem(const QUrl &url, const QString &title) -{ - for (int i = 0; i < m_history.count(); ++i) { - if (url == m_history.at(i).url) { - m_history[i].title = title; - m_saveTimer->changeOccurred(); - if (m_lastSavedUrl.isEmpty()) - m_lastSavedUrl = m_history.at(i).url; - emit entryUpdated(i); - break; - } - } -} - -int HistoryManager::historyLimit() const -{ - return m_historyLimit; -} - -void HistoryManager::setHistoryLimit(int limit) -{ - if (m_historyLimit == limit) - return; - m_historyLimit = limit; - checkForExpired(); - m_saveTimer->changeOccurred(); -} - -void HistoryManager::clear() -{ - m_history.clear(); - m_lastSavedUrl = QString(); - m_saveTimer->changeOccurred(); - m_saveTimer->saveIfNeccessary(); - historyReset(); -} - -void HistoryManager::loadSettings() -{ - // load settings - QSettings settings; - settings.beginGroup(QLatin1String("history")); - m_historyLimit = settings.value(QLatin1String("historyLimit"), 30).toInt(); -} - -void HistoryManager::load() -{ - loadSettings(); - - QFile historyFile(QDesktopServices::storageLocation(QDesktopServices::DataLocation) - + QLatin1String("/history")); - if (!historyFile.exists()) - return; - if (!historyFile.open(QFile::ReadOnly)) { - qWarning() << "Unable to open history file" << historyFile.fileName(); - return; - } - - QList<HistoryItem> list; - QDataStream in(&historyFile); - // Double check that the history file is sorted as it is read in - bool needToSort = false; - HistoryItem lastInsertedItem; - QByteArray data; - QDataStream stream; - QBuffer buffer; - stream.setDevice(&buffer); - while (!historyFile.atEnd()) { - in >> data; - buffer.close(); - buffer.setBuffer(&data); - buffer.open(QIODevice::ReadOnly); - quint32 ver; - stream >> ver; - if (ver != HISTORY_VERSION) - continue; - HistoryItem item; - stream >> item.url; - stream >> item.dateTime; - stream >> item.title; - - if (!item.dateTime.isValid()) - continue; - - if (item == lastInsertedItem) { - if (lastInsertedItem.title.isEmpty() && !list.isEmpty()) - list[0].title = item.title; - continue; - } - - if (!needToSort && !list.isEmpty() && lastInsertedItem < item) - needToSort = true; - - list.prepend(item); - lastInsertedItem = item; - } - if (needToSort) - qSort(list.begin(), list.end()); - - setHistory(list, true); - - // If we had to sort re-write the whole history sorted - if (needToSort) { - m_lastSavedUrl = QString(); - m_saveTimer->changeOccurred(); - } -} - -void HistoryManager::save() -{ - QSettings settings; - settings.beginGroup(QLatin1String("history")); - settings.setValue(QLatin1String("historyLimit"), m_historyLimit); - - bool saveAll = m_lastSavedUrl.isEmpty(); - int first = m_history.count() - 1; - if (!saveAll) { - // find the first one to save - for (int i = 0; i < m_history.count(); ++i) { - if (m_history.at(i).url == m_lastSavedUrl) { - first = i - 1; - break; - } - } - } - if (first == m_history.count() - 1) - saveAll = true; - - QString directory = QDesktopServices::storageLocation(QDesktopServices::DataLocation); - if (directory.isEmpty()) - directory = QDir::homePath() + QLatin1String("/.") + QCoreApplication::applicationName(); - if (!QFile::exists(directory)) { - QDir dir; - dir.mkpath(directory); - } - - QFile historyFile(directory + QLatin1String("/history")); - // When saving everything use a temporary file to prevent possible data loss. - QTemporaryFile tempFile; - tempFile.setAutoRemove(false); - bool open = false; - if (saveAll) { - open = tempFile.open(); - } else { - open = historyFile.open(QFile::Append); - } - - if (!open) { - qWarning() << "Unable to open history file for saving" - << (saveAll ? tempFile.fileName() : historyFile.fileName()); - return; - } - - QDataStream out(saveAll ? &tempFile : &historyFile); - for (int i = first; i >= 0; --i) { - QByteArray data; - QDataStream stream(&data, QIODevice::WriteOnly); - HistoryItem item = m_history.at(i); - stream << HISTORY_VERSION << item.url << item.dateTime << item.title; - out << data; - } - tempFile.close(); - - if (saveAll) { - if (historyFile.exists() && !historyFile.remove()) - qWarning() << "History: error removing old history." << historyFile.errorString(); - if (!tempFile.rename(historyFile.fileName())) - qWarning() << "History: error moving new history over old." << tempFile.errorString() << historyFile.fileName(); - } - m_lastSavedUrl = m_history.value(0).url; -} - -HistoryModel::HistoryModel(HistoryManager *history, QObject *parent) - : QAbstractTableModel(parent) - , m_history(history) -{ - Q_ASSERT(m_history); - connect(m_history, SIGNAL(historyReset()), - this, SLOT(historyReset())); - connect(m_history, SIGNAL(entryRemoved(const HistoryItem &)), - this, SLOT(historyReset())); - - connect(m_history, SIGNAL(entryAdded(const HistoryItem &)), - this, SLOT(entryAdded())); - connect(m_history, SIGNAL(entryUpdated(int)), - this, SLOT(entryUpdated(int))); -} - -void HistoryModel::historyReset() -{ - reset(); -} - -void HistoryModel::entryAdded() -{ - beginInsertRows(QModelIndex(), 0, 0); - endInsertRows(); -} - -void HistoryModel::entryUpdated(int offset) -{ - QModelIndex idx = index(offset, 0); - emit dataChanged(idx, idx); -} - -QVariant HistoryModel::headerData(int section, Qt::Orientation orientation, int role) const -{ - if (orientation == Qt::Horizontal - && role == Qt::DisplayRole) { - switch (section) { - case 0: return tr("Title"); - case 1: return tr("Address"); - } - } - return QAbstractTableModel::headerData(section, orientation, role); -} - -QVariant HistoryModel::data(const QModelIndex &index, int role) const -{ - QList<HistoryItem> lst = m_history->history(); - if (index.row() < 0 || index.row() >= lst.size()) - return QVariant(); - - const HistoryItem &item = lst.at(index.row()); - switch (role) { - case DateTimeRole: - return item.dateTime; - case DateRole: - return item.dateTime.date(); - case UrlRole: - return QUrl(item.url); - case UrlStringRole: - return item.url; - case Qt::DisplayRole: - case Qt::EditRole: { - switch (index.column()) { - case 0: - // when there is no title try to generate one from the url - if (item.title.isEmpty()) { - QString page = QFileInfo(QUrl(item.url).path()).fileName(); - if (!page.isEmpty()) - return page; - return item.url; - } - return item.title; - case 1: - return item.url; - } - } - case Qt::DecorationRole: - if (index.column() == 0) { - return BrowserApplication::instance()->icon(item.url); - } - } - return QVariant(); -} - -int HistoryModel::columnCount(const QModelIndex &parent) const -{ - return (parent.isValid()) ? 0 : 2; -} - -int HistoryModel::rowCount(const QModelIndex &parent) const -{ - return (parent.isValid()) ? 0 : m_history->history().count(); -} - -bool HistoryModel::removeRows(int row, int count, const QModelIndex &parent) -{ - if (parent.isValid()) - return false; - int lastRow = row + count - 1; - beginRemoveRows(parent, row, lastRow); - QList<HistoryItem> lst = m_history->history(); - for (int i = lastRow; i >= row; --i) - lst.removeAt(i); - disconnect(m_history, SIGNAL(historyReset()), this, SLOT(historyReset())); - m_history->setHistory(lst); - connect(m_history, SIGNAL(historyReset()), this, SLOT(historyReset())); - endRemoveRows(); - return true; -} - -#define MOVEDROWS 15 - -/* - Maps the first bunch of items of the source model to the root -*/ -HistoryMenuModel::HistoryMenuModel(HistoryTreeModel *sourceModel, QObject *parent) - : QAbstractProxyModel(parent) - , m_treeModel(sourceModel) -{ - setSourceModel(sourceModel); -} - -int HistoryMenuModel::bumpedRows() const -{ - QModelIndex first = m_treeModel->index(0, 0); - if (!first.isValid()) - return 0; - return qMin(m_treeModel->rowCount(first), MOVEDROWS); -} - -int HistoryMenuModel::columnCount(const QModelIndex &parent) const -{ - return m_treeModel->columnCount(mapToSource(parent)); -} - -int HistoryMenuModel::rowCount(const QModelIndex &parent) const -{ - if (parent.column() > 0) - return 0; - - if (!parent.isValid()) { - int folders = sourceModel()->rowCount(); - int bumpedItems = bumpedRows(); - if (bumpedItems <= MOVEDROWS - && bumpedItems == sourceModel()->rowCount(sourceModel()->index(0, 0))) - --folders; - return bumpedItems + folders; - } - - if (parent.internalId() == -1) { - if (parent.row() < bumpedRows()) - return 0; - } - - QModelIndex idx = mapToSource(parent); - int defaultCount = sourceModel()->rowCount(idx); - if (idx == sourceModel()->index(0, 0)) - return defaultCount - bumpedRows(); - return defaultCount; -} - -QModelIndex HistoryMenuModel::mapFromSource(const QModelIndex &sourceIndex) const -{ - // currently not used or autotested - Q_ASSERT(false); - int sr = m_treeModel->mapToSource(sourceIndex).row(); - return createIndex(sourceIndex.row(), sourceIndex.column(), sr); -} - -QModelIndex HistoryMenuModel::mapToSource(const QModelIndex &proxyIndex) const -{ - if (!proxyIndex.isValid()) - return QModelIndex(); - - if (proxyIndex.internalId() == -1) { - int bumpedItems = bumpedRows(); - if (proxyIndex.row() < bumpedItems) - return m_treeModel->index(proxyIndex.row(), proxyIndex.column(), m_treeModel->index(0, 0)); - if (bumpedItems <= MOVEDROWS && bumpedItems == sourceModel()->rowCount(m_treeModel->index(0, 0))) - --bumpedItems; - return m_treeModel->index(proxyIndex.row() - bumpedItems, proxyIndex.column()); - } - - QModelIndex historyIndex = m_treeModel->sourceModel()->index(proxyIndex.internalId(), proxyIndex.column()); - QModelIndex treeIndex = m_treeModel->mapFromSource(historyIndex); - return treeIndex; -} - -QModelIndex HistoryMenuModel::index(int row, int column, const QModelIndex &parent) const -{ - if (row < 0 - || column < 0 || column >= columnCount(parent) - || parent.column() > 0) - return QModelIndex(); - if (!parent.isValid()) - return createIndex(row, column, -1); - - QModelIndex treeIndexParent = mapToSource(parent); - - int bumpedItems = 0; - if (treeIndexParent == m_treeModel->index(0, 0)) - bumpedItems = bumpedRows(); - QModelIndex treeIndex = m_treeModel->index(row + bumpedItems, column, treeIndexParent); - QModelIndex historyIndex = m_treeModel->mapToSource(treeIndex); - int historyRow = historyIndex.row(); - if (historyRow == -1) - historyRow = treeIndex.row(); - return createIndex(row, column, historyRow); -} - -QModelIndex HistoryMenuModel::parent(const QModelIndex &index) const -{ - int offset = index.internalId(); - if (offset == -1 || !index.isValid()) - return QModelIndex(); - - QModelIndex historyIndex = m_treeModel->sourceModel()->index(index.internalId(), 0); - QModelIndex treeIndex = m_treeModel->mapFromSource(historyIndex); - QModelIndex treeIndexParent = treeIndex.parent(); - - int sr = m_treeModel->mapToSource(treeIndexParent).row(); - int bumpedItems = bumpedRows(); - if (bumpedItems <= MOVEDROWS && bumpedItems == sourceModel()->rowCount(sourceModel()->index(0, 0))) - --bumpedItems; - return createIndex(bumpedItems + treeIndexParent.row(), treeIndexParent.column(), sr); -} - - -HistoryMenu::HistoryMenu(QWidget *parent) - : ModelMenu(parent) - , m_history(0) -{ - connect(this, SIGNAL(activated(const QModelIndex &)), - this, SLOT(activated(const QModelIndex &))); - setHoverRole(HistoryModel::UrlStringRole); -} - -void HistoryMenu::activated(const QModelIndex &index) -{ - emit openUrl(index.data(HistoryModel::UrlRole).toUrl()); -} - -bool HistoryMenu::prePopulated() -{ - if (!m_history) { - m_history = BrowserApplication::historyManager(); - m_historyMenuModel = new HistoryMenuModel(m_history->historyTreeModel(), this); - setModel(m_historyMenuModel); - } - // initial actions - for (int i = 0; i < m_initialActions.count(); ++i) - addAction(m_initialActions.at(i)); - if (!m_initialActions.isEmpty()) - addSeparator(); - setFirstSeparator(m_historyMenuModel->bumpedRows()); - - return false; -} - -void HistoryMenu::postPopulated() -{ - if (m_history->history().count() > 0) - addSeparator(); - - QAction *showAllAction = new QAction(tr("Show All History"), this); - connect(showAllAction, SIGNAL(triggered()), this, SLOT(showHistoryDialog())); - addAction(showAllAction); - - QAction *clearAction = new QAction(tr("Clear History"), this); - connect(clearAction, SIGNAL(triggered()), m_history, SLOT(clear())); - addAction(clearAction); -} - -void HistoryMenu::showHistoryDialog() -{ - HistoryDialog *dialog = new HistoryDialog(this); - connect(dialog, SIGNAL(openUrl(const QUrl&)), - this, SIGNAL(openUrl(const QUrl&))); - dialog->show(); -} - -void HistoryMenu::setInitialActions(QList<QAction*> actions) -{ - m_initialActions = actions; - for (int i = 0; i < m_initialActions.count(); ++i) - addAction(m_initialActions.at(i)); -} - -TreeProxyModel::TreeProxyModel(QObject *parent) : QSortFilterProxyModel(parent) -{ - setSortRole(HistoryModel::DateTimeRole); - setFilterCaseSensitivity(Qt::CaseInsensitive); -} - -bool TreeProxyModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const -{ - if (!source_parent.isValid()) - return true; - return QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent); -} - -HistoryDialog::HistoryDialog(QWidget *parent, HistoryManager *setHistory) : QDialog(parent) -{ - HistoryManager *history = setHistory; - if (!history) - history = BrowserApplication::historyManager(); - setupUi(this); - tree->setUniformRowHeights(true); - tree->setSelectionBehavior(QAbstractItemView::SelectRows); - tree->setTextElideMode(Qt::ElideMiddle); - QAbstractItemModel *model = history->historyTreeModel(); - TreeProxyModel *proxyModel = new TreeProxyModel(this); - connect(search, SIGNAL(textChanged(QString)), - proxyModel, SLOT(setFilterFixedString(QString))); - connect(removeButton, SIGNAL(clicked()), tree, SLOT(removeOne())); - connect(removeAllButton, SIGNAL(clicked()), history, SLOT(clear())); - proxyModel->setSourceModel(model); - tree->setModel(proxyModel); - tree->setExpanded(proxyModel->index(0, 0), true); - tree->setAlternatingRowColors(true); - QFontMetrics fm(font()); - int header = fm.width(QLatin1Char('m')) * 40; - tree->header()->resizeSection(0, header); - tree->header()->setStretchLastSection(true); - connect(tree, SIGNAL(activated(const QModelIndex&)), - this, SLOT(open())); - tree->setContextMenuPolicy(Qt::CustomContextMenu); - connect(tree, SIGNAL(customContextMenuRequested(const QPoint &)), - this, SLOT(customContextMenuRequested(const QPoint &))); -} - -void HistoryDialog::customContextMenuRequested(const QPoint &pos) -{ - QMenu menu; - QModelIndex index = tree->indexAt(pos); - index = index.sibling(index.row(), 0); - if (index.isValid() && !tree->model()->hasChildren(index)) { - menu.addAction(tr("Open"), this, SLOT(open())); - menu.addSeparator(); - menu.addAction(tr("Copy"), this, SLOT(copy())); - } - menu.addAction(tr("Delete"), tree, SLOT(removeOne())); - menu.exec(QCursor::pos()); -} - -void HistoryDialog::open() -{ - QModelIndex index = tree->currentIndex(); - if (!index.parent().isValid()) - return; - emit openUrl(index.data(HistoryModel::UrlRole).toUrl()); -} - -void HistoryDialog::copy() -{ - QModelIndex index = tree->currentIndex(); - if (!index.parent().isValid()) - return; - QString url = index.data(HistoryModel::UrlStringRole).toString(); - - QClipboard *clipboard = QApplication::clipboard(); - clipboard->setText(url); -} - -HistoryFilterModel::HistoryFilterModel(QAbstractItemModel *sourceModel, QObject *parent) - : QAbstractProxyModel(parent), - m_loaded(false) -{ - setSourceModel(sourceModel); -} - -int HistoryFilterModel::historyLocation(const QString &url) const -{ - load(); - if (!m_historyHash.contains(url)) - return 0; - return sourceModel()->rowCount() - m_historyHash.value(url); -} - -QVariant HistoryFilterModel::data(const QModelIndex &index, int role) const -{ - return QAbstractProxyModel::data(index, role); -} - -void HistoryFilterModel::setSourceModel(QAbstractItemModel *newSourceModel) -{ - if (sourceModel()) { - disconnect(sourceModel(), SIGNAL(modelReset()), this, SLOT(sourceReset())); - disconnect(sourceModel(), SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)), - this, SLOT(dataChanged(const QModelIndex &, const QModelIndex &))); - disconnect(sourceModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)), - this, SLOT(sourceRowsInserted(const QModelIndex &, int, int))); - disconnect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceRowsRemoved(const QModelIndex &, int, int))); - } - - QAbstractProxyModel::setSourceModel(newSourceModel); - - if (sourceModel()) { - m_loaded = false; - connect(sourceModel(), SIGNAL(modelReset()), this, SLOT(sourceReset())); - connect(sourceModel(), SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)), - this, SLOT(sourceDataChanged(const QModelIndex &, const QModelIndex &))); - connect(sourceModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)), - this, SLOT(sourceRowsInserted(const QModelIndex &, int, int))); - connect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceRowsRemoved(const QModelIndex &, int, int))); - } -} - -void HistoryFilterModel::sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight) -{ - emit dataChanged(mapFromSource(topLeft), mapFromSource(bottomRight)); -} - -QVariant HistoryFilterModel::headerData(int section, Qt::Orientation orientation, int role) const -{ - return sourceModel()->headerData(section, orientation, role); -} - -void HistoryFilterModel::sourceReset() -{ - m_loaded = false; - reset(); -} - -int HistoryFilterModel::rowCount(const QModelIndex &parent) const -{ - load(); - if (parent.isValid()) - return 0; - return m_historyHash.count(); -} - -int HistoryFilterModel::columnCount(const QModelIndex &parent) const -{ - return (parent.isValid()) ? 0 : 2; -} - -QModelIndex HistoryFilterModel::mapToSource(const QModelIndex &proxyIndex) const -{ - load(); - int sourceRow = sourceModel()->rowCount() - proxyIndex.internalId(); - return sourceModel()->index(sourceRow, proxyIndex.column()); -} - -QModelIndex HistoryFilterModel::mapFromSource(const QModelIndex &sourceIndex) const -{ - load(); - QString url = sourceIndex.data(HistoryModel::UrlStringRole).toString(); - if (!m_historyHash.contains(url)) - return QModelIndex(); - - // This can be done in a binary search, but we can't use qBinary find - // because it can't take: qBinaryFind(m_sourceRow.end(), m_sourceRow.begin(), v); - // so if this is a performance bottlneck then convert to binary search, until then - // the cleaner/easier to read code wins the day. - int realRow = -1; - int sourceModelRow = sourceModel()->rowCount() - sourceIndex.row(); - - for (int i = 0; i < m_sourceRow.count(); ++i) { - if (m_sourceRow.at(i) == sourceModelRow) { - realRow = i; - break; - } - } - if (realRow == -1) - return QModelIndex(); - - return createIndex(realRow, sourceIndex.column(), sourceModel()->rowCount() - sourceIndex.row()); -} - -QModelIndex HistoryFilterModel::index(int row, int column, const QModelIndex &parent) const -{ - load(); - if (row < 0 || row >= rowCount(parent) - || column < 0 || column >= columnCount(parent)) - return QModelIndex(); - - return createIndex(row, column, m_sourceRow[row]); -} - -QModelIndex HistoryFilterModel::parent(const QModelIndex &) const -{ - return QModelIndex(); -} - -void HistoryFilterModel::load() const -{ - if (m_loaded) - return; - m_sourceRow.clear(); - m_historyHash.clear(); - m_historyHash.reserve(sourceModel()->rowCount()); - for (int i = 0; i < sourceModel()->rowCount(); ++i) { - QModelIndex idx = sourceModel()->index(i, 0); - QString url = idx.data(HistoryModel::UrlStringRole).toString(); - if (!m_historyHash.contains(url)) { - m_sourceRow.append(sourceModel()->rowCount() - i); - m_historyHash[url] = sourceModel()->rowCount() - i; - } - } - m_loaded = true; -} - -void HistoryFilterModel::sourceRowsInserted(const QModelIndex &parent, int start, int end) -{ - Q_ASSERT(start == end && start == 0); - Q_UNUSED(end); - if (!m_loaded) - return; - QModelIndex idx = sourceModel()->index(start, 0, parent); - QString url = idx.data(HistoryModel::UrlStringRole).toString(); - if (m_historyHash.contains(url)) { - int sourceRow = sourceModel()->rowCount() - m_historyHash[url]; - int realRow = mapFromSource(sourceModel()->index(sourceRow, 0)).row(); - beginRemoveRows(QModelIndex(), realRow, realRow); - m_sourceRow.removeAt(realRow); - m_historyHash.remove(url); - endRemoveRows(); - } - beginInsertRows(QModelIndex(), 0, 0); - m_historyHash.insert(url, sourceModel()->rowCount() - start); - m_sourceRow.insert(0, sourceModel()->rowCount()); - endInsertRows(); -} - -void HistoryFilterModel::sourceRowsRemoved(const QModelIndex &, int start, int end) -{ - Q_UNUSED(start); - Q_UNUSED(end); - sourceReset(); -} - -/* - Removing a continuous block of rows will remove filtered rows too as this is - the users intention. -*/ -bool HistoryFilterModel::removeRows(int row, int count, const QModelIndex &parent) -{ - if (row < 0 || count <= 0 || row + count > rowCount(parent) || parent.isValid()) - return false; - int lastRow = row + count - 1; - disconnect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceRowsRemoved(const QModelIndex &, int, int))); - beginRemoveRows(parent, row, lastRow); - int oldCount = rowCount(); - int start = sourceModel()->rowCount() - m_sourceRow.value(row); - int end = sourceModel()->rowCount() - m_sourceRow.value(lastRow); - sourceModel()->removeRows(start, end - start + 1); - endRemoveRows(); - connect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceRowsRemoved(const QModelIndex &, int, int))); - m_loaded = false; - if (oldCount - count != rowCount()) - reset(); - return true; -} - -HistoryCompletionModel::HistoryCompletionModel(QObject *parent) - : QAbstractProxyModel(parent) -{ -} - -QVariant HistoryCompletionModel::data(const QModelIndex &index, int role) const -{ - if (sourceModel() - && (role == Qt::EditRole || role == Qt::DisplayRole) - && index.isValid()) { - QModelIndex idx = mapToSource(index); - idx = idx.sibling(idx.row(), 1); - QString urlString = idx.data(HistoryModel::UrlStringRole).toString(); - if (index.row() % 2) { - QUrl url = urlString; - QString s = url.toString(QUrl::RemoveScheme - | QUrl::RemoveUserInfo - | QUrl::StripTrailingSlash); - return s.mid(2); // strip // from the front - } - return urlString; - } - return QAbstractProxyModel::data(index, role); -} - -int HistoryCompletionModel::rowCount(const QModelIndex &parent) const -{ - return (parent.isValid() || !sourceModel()) ? 0 : sourceModel()->rowCount(parent) * 2; -} - -int HistoryCompletionModel::columnCount(const QModelIndex &parent) const -{ - return (parent.isValid()) ? 0 : 1; -} - -QModelIndex HistoryCompletionModel::mapFromSource(const QModelIndex &sourceIndex) const -{ - int row = sourceIndex.row() * 2; - return index(row, sourceIndex.column()); -} - -QModelIndex HistoryCompletionModel::mapToSource(const QModelIndex &proxyIndex) const -{ - if (!sourceModel()) - return QModelIndex(); - int row = proxyIndex.row() / 2; - return sourceModel()->index(row, proxyIndex.column()); -} - -QModelIndex HistoryCompletionModel::index(int row, int column, const QModelIndex &parent) const -{ - if (row < 0 || row >= rowCount(parent) - || column < 0 || column >= columnCount(parent)) - return QModelIndex(); - return createIndex(row, column, 0); -} - -QModelIndex HistoryCompletionModel::parent(const QModelIndex &) const -{ - return QModelIndex(); -} - -void HistoryCompletionModel::setSourceModel(QAbstractItemModel *newSourceModel) -{ - if (sourceModel()) { - disconnect(sourceModel(), SIGNAL(modelReset()), this, SLOT(sourceReset())); - disconnect(sourceModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)), - this, SLOT(sourceReset())); - disconnect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceReset())); - } - - QAbstractProxyModel::setSourceModel(newSourceModel); - - if (newSourceModel) { - connect(newSourceModel, SIGNAL(modelReset()), this, SLOT(sourceReset())); - connect(sourceModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)), - this, SLOT(sourceReset())); - connect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceReset())); - } - - reset(); -} - -void HistoryCompletionModel::sourceReset() -{ - reset(); -} - -HistoryTreeModel::HistoryTreeModel(QAbstractItemModel *sourceModel, QObject *parent) - : QAbstractProxyModel(parent) -{ - setSourceModel(sourceModel); -} - -QVariant HistoryTreeModel::headerData(int section, Qt::Orientation orientation, int role) const -{ - return sourceModel()->headerData(section, orientation, role); -} - -QVariant HistoryTreeModel::data(const QModelIndex &index, int role) const -{ - if ((role == Qt::EditRole || role == Qt::DisplayRole)) { - int start = index.internalId(); - if (start == 0) { - int offset = sourceDateRow(index.row()); - if (index.column() == 0) { - QModelIndex idx = sourceModel()->index(offset, 0); - QDate date = idx.data(HistoryModel::DateRole).toDate(); - if (date == QDate::currentDate()) - return tr("Earlier Today"); - return date.toString(QLatin1String("dddd, MMMM d, yyyy")); - } - if (index.column() == 1) { - return tr("%1 items").arg(rowCount(index.sibling(index.row(), 0))); - } - } - } - if (role == Qt::DecorationRole && index.column() == 0 && !index.parent().isValid()) - return QIcon(QLatin1String(":history.png")); - if (role == HistoryModel::DateRole && index.column() == 0 && index.internalId() == 0) { - int offset = sourceDateRow(index.row()); - QModelIndex idx = sourceModel()->index(offset, 0); - return idx.data(HistoryModel::DateRole); - } - - return QAbstractProxyModel::data(index, role); -} - -int HistoryTreeModel::columnCount(const QModelIndex &parent) const -{ - return sourceModel()->columnCount(mapToSource(parent)); -} - -int HistoryTreeModel::rowCount(const QModelIndex &parent) const -{ - if ( parent.internalId() != 0 - || parent.column() > 0 - || !sourceModel()) - return 0; - - // row count OF dates - if (!parent.isValid()) { - if (!m_sourceRowCache.isEmpty()) - return m_sourceRowCache.count(); - QDate currentDate; - int rows = 0; - int totalRows = sourceModel()->rowCount(); - - for (int i = 0; i < totalRows; ++i) { - QDate rowDate = sourceModel()->index(i, 0).data(HistoryModel::DateRole).toDate(); - if (rowDate != currentDate) { - m_sourceRowCache.append(i); - currentDate = rowDate; - ++rows; - } - } - Q_ASSERT(m_sourceRowCache.count() == rows); - return rows; - } - - // row count FOR a date - int start = sourceDateRow(parent.row()); - int end = sourceDateRow(parent.row() + 1); - return (end - start); -} - -// Translate the top level date row into the offset where that date starts -int HistoryTreeModel::sourceDateRow(int row) const -{ - if (row <= 0) - return 0; - - if (m_sourceRowCache.isEmpty()) - rowCount(QModelIndex()); - - if (row >= m_sourceRowCache.count()) { - if (!sourceModel()) - return 0; - return sourceModel()->rowCount(); - } - return m_sourceRowCache.at(row); -} - -QModelIndex HistoryTreeModel::mapToSource(const QModelIndex &proxyIndex) const -{ - int offset = proxyIndex.internalId(); - if (offset == 0) - return QModelIndex(); - int startDateRow = sourceDateRow(offset - 1); - return sourceModel()->index(startDateRow + proxyIndex.row(), proxyIndex.column()); -} - -QModelIndex HistoryTreeModel::index(int row, int column, const QModelIndex &parent) const -{ - if (row < 0 - || column < 0 || column >= columnCount(parent) - || parent.column() > 0) - return QModelIndex(); - - if (!parent.isValid()) - return createIndex(row, column, 0); - return createIndex(row, column, parent.row() + 1); -} - -QModelIndex HistoryTreeModel::parent(const QModelIndex &index) const -{ - int offset = index.internalId(); - if (offset == 0 || !index.isValid()) - return QModelIndex(); - return createIndex(offset - 1, 0, 0); -} - -bool HistoryTreeModel::hasChildren(const QModelIndex &parent) const -{ - QModelIndex grandparent = parent.parent(); - if (!grandparent.isValid()) - return true; - return false; -} - -Qt::ItemFlags HistoryTreeModel::flags(const QModelIndex &index) const -{ - if (!index.isValid()) - return Qt::NoItemFlags; - return Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsDragEnabled; -} - -bool HistoryTreeModel::removeRows(int row, int count, const QModelIndex &parent) -{ - if (row < 0 || count <= 0 || row + count > rowCount(parent)) - return false; - - if (parent.isValid()) { - // removing pages - int offset = sourceDateRow(parent.row()); - return sourceModel()->removeRows(offset + row, count); - } else { - // removing whole dates - for (int i = row + count - 1; i >= row; --i) { - QModelIndex dateParent = index(i, 0); - int offset = sourceDateRow(dateParent.row()); - if (!sourceModel()->removeRows(offset, rowCount(dateParent))) - return false; - } - } - return true; -} - -void HistoryTreeModel::setSourceModel(QAbstractItemModel *newSourceModel) -{ - if (sourceModel()) { - disconnect(sourceModel(), SIGNAL(modelReset()), this, SLOT(sourceReset())); - disconnect(sourceModel(), SIGNAL(layoutChanged()), this, SLOT(sourceReset())); - disconnect(sourceModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)), - this, SLOT(sourceRowsInserted(const QModelIndex &, int, int))); - disconnect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceRowsRemoved(const QModelIndex &, int, int))); - } - - QAbstractProxyModel::setSourceModel(newSourceModel); - - if (newSourceModel) { - connect(sourceModel(), SIGNAL(modelReset()), this, SLOT(sourceReset())); - connect(sourceModel(), SIGNAL(layoutChanged()), this, SLOT(sourceReset())); - connect(sourceModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)), - this, SLOT(sourceRowsInserted(const QModelIndex &, int, int))); - connect(sourceModel(), SIGNAL(rowsRemoved(const QModelIndex &, int, int)), - this, SLOT(sourceRowsRemoved(const QModelIndex &, int, int))); - } - - reset(); -} - -void HistoryTreeModel::sourceReset() -{ - m_sourceRowCache.clear(); - reset(); -} - -void HistoryTreeModel::sourceRowsInserted(const QModelIndex &parent, int start, int end) -{ - Q_UNUSED(parent); // Avoid warnings when compiling release - Q_ASSERT(!parent.isValid()); - if (start != 0 || start != end) { - m_sourceRowCache.clear(); - reset(); - return; - } - - m_sourceRowCache.clear(); - QModelIndex treeIndex = mapFromSource(sourceModel()->index(start, 0)); - QModelIndex treeParent = treeIndex.parent(); - if (rowCount(treeParent) == 1) { - beginInsertRows(QModelIndex(), 0, 0); - endInsertRows(); - } else { - beginInsertRows(treeParent, treeIndex.row(), treeIndex.row()); - endInsertRows(); - } -} - -QModelIndex HistoryTreeModel::mapFromSource(const QModelIndex &sourceIndex) const -{ - if (!sourceIndex.isValid()) - return QModelIndex(); - - if (m_sourceRowCache.isEmpty()) - rowCount(QModelIndex()); - - QList<int>::iterator it; - it = qLowerBound(m_sourceRowCache.begin(), m_sourceRowCache.end(), sourceIndex.row()); - if (*it != sourceIndex.row()) - --it; - int dateRow = qMax(0, it - m_sourceRowCache.begin()); - int row = sourceIndex.row() - m_sourceRowCache.at(dateRow); - return createIndex(row, sourceIndex.column(), dateRow + 1); -} - -void HistoryTreeModel::sourceRowsRemoved(const QModelIndex &parent, int start, int end) -{ - Q_UNUSED(parent); // Avoid warnings when compiling release - Q_ASSERT(!parent.isValid()); - if (m_sourceRowCache.isEmpty()) - return; - for (int i = end; i >= start;) { - QList<int>::iterator it; - it = qLowerBound(m_sourceRowCache.begin(), m_sourceRowCache.end(), i); - // playing it safe - if (it == m_sourceRowCache.end()) { - m_sourceRowCache.clear(); - reset(); - return; - } - - if (*it != i) - --it; - int row = qMax(0, it - m_sourceRowCache.begin()); - int offset = m_sourceRowCache[row]; - QModelIndex dateParent = index(row, 0); - // If we can remove all the rows in the date do that and skip over them - int rc = rowCount(dateParent); - if (i - rc + 1 == offset && start <= i - rc + 1) { - beginRemoveRows(QModelIndex(), row, row); - m_sourceRowCache.removeAt(row); - i -= rc + 1; - } else { - beginRemoveRows(dateParent, i - offset, i - offset); - ++row; - --i; - } - for (int j = row; j < m_sourceRowCache.count(); ++j) - --m_sourceRowCache[j]; - endRemoveRows(); - } -} - |