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pcmanfm-qt-packaging/pcmanfm/tabpage.cpp

657 lines
24 KiB

/*
Copyright (C) 2013 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "tabpage.h"
#include "launcher.h"
#include <libfm-qt/filemenu.h>
#include <libfm-qt/mountoperation.h>
#include <libfm-qt/proxyfoldermodel.h>
#include <libfm-qt/cachedfoldermodel.h>
#include <libfm-qt/core/fileinfo.h>
#include <libfm-qt/utilities.h>
#include <QApplication>
#include <QCursor>
#include <QMessageBox>
#include <QScrollBar>
#include <QDir>
#include "settings.h"
#include "application.h"
#include <QTimer>
#include <QTextStream>
#include <QDebug>
using namespace Fm;
namespace PCManFM {
bool ProxyFilter::filterAcceptsRow(const Fm::ProxyFolderModel* model, const std::shared_ptr<const Fm::FileInfo>& info) const {
if(!model || !info) {
return true;
}
QString baseName = QString::fromStdString(info->name());
if(!virtHiddenList_.isEmpty() && !model->showHidden() && virtHiddenList_.contains(baseName)) {
return false;
}
if(!filterStr_.isEmpty() && !baseName.contains(filterStr_, Qt::CaseInsensitive)) {
return false;
}
return true;
}
void ProxyFilter::setVirtHidden(const std::shared_ptr<Fm::Folder> &folder) {
virtHiddenList_ = QStringList(); // reset the list
if(!folder) {
return;
}
auto path = folder->path();
if(path) {
auto pathStr = path.localPath();
if(pathStr) {
QString dotHidden = QString::fromUtf8(pathStr.get()) + QString("/.hidden");
// FIXME: this does not work for non-local filesystems
QFile file(dotHidden);
if(file.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream in(&file);
while(!in.atEnd()) {
virtHiddenList_.append(in.readLine());
}
file.close();
}
}
}
}
TabPage::TabPage(QWidget* parent):
QWidget(parent),
folderView_{nullptr},
folderModel_{nullptr},
proxyModel_{nullptr},
proxyFilter_{nullptr},
verticalLayout{nullptr},
overrideCursor_(false) {
Settings& settings = static_cast<Application*>(qApp)->settings();
// create proxy folder model to do item filtering
proxyModel_ = new ProxyFolderModel();
proxyModel_->setShowHidden(settings.showHidden());
proxyModel_->setShowThumbnails(settings.showThumbnails());
connect(proxyModel_, &ProxyFolderModel::sortFilterChanged, this, &TabPage::sortFilterChanged);
verticalLayout = new QVBoxLayout(this);
verticalLayout->setContentsMargins(0, 0, 0, 0);
folderView_ = new View(settings.viewMode(), this);
folderView_->setMargins(settings.folderViewCellMargins());
// newView->setColumnWidth(Fm::FolderModel::ColumnName, 200);
connect(folderView_, &View::openDirRequested, this, &TabPage::openDirRequested);
connect(folderView_, &View::selChanged, this, &TabPage::onSelChanged);
connect(folderView_, &View::clickedBack, this, &TabPage::backwardRequested);
connect(folderView_, &View::clickedForward, this, &TabPage::forwardRequested);
proxyFilter_ = new ProxyFilter();
proxyModel_->addFilter(proxyFilter_);
// FIXME: this is very dirty
folderView_->setModel(proxyModel_);
verticalLayout->addWidget(folderView_);
}
TabPage::~TabPage() {
freeFolder();
if(proxyFilter_) {
delete proxyFilter_;
}
if(proxyModel_) {
delete proxyModel_;
}
disconnect(folderModel_, &Fm::FolderModel::fileSizeChanged, this, &TabPage::onFileSizeChanged);
if(folderModel_) {
folderModel_->unref();
}
if(overrideCursor_) {
QApplication::restoreOverrideCursor(); // remove busy cursor
}
}
void TabPage::freeFolder() {
if(folder_) {
if(folderSettings_.isCustomized()) {
// save custom view settings for this folder
static_cast<Application*>(qApp)->settings().saveFolderSettings(folder_->path(), folderSettings_);
}
disconnect(folder_.get(), nullptr, this, nullptr); // disconnect from all signals
folder_ = nullptr;
}
}
void TabPage::onFolderStartLoading() {
if(!overrideCursor_) {
// FIXME: sometimes FmFolder of libfm generates unpaired "start-loading" and
// "finish-loading" signals of uncertain reasons. This should be a bug in libfm.
// Until it's fixed in libfm, we need to workaround the problem here, not to
// override the cursor twice.
QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
overrideCursor_ = true;
}
#if 0
#if FM_CHECK_VERSION(1, 0, 2) && 0 // disabled
if(fm_folder_is_incremental(_folder)) {
/* create a model for the folder and set it to the view
it is delayed for non-incremental folders since adding rows into
model is much faster without handlers connected to its signals */
FmFolderModel* model = fm_folder_model_new(folder, FALSE);
fm_folder_view_set_model(fv, model);
fm_folder_model_set_sort(model, app_config->sort_by,
(app_config->sort_type == GTK_SORT_ASCENDING) ?
FM_SORT_ASCENDING : FM_SORT_DESCENDING);
g_object_unref(model);
}
else
#endif
fm_folder_view_set_model(fv, nullptr);
#endif
}
void TabPage::onUiUpdated() {
// scroll to recorded position
folderView_->childView()->verticalScrollBar()->setValue(browseHistory().currentScrollPos());
// if the current folder is the parent folder of the last browsed folder,
// select the folder item in current view.
if(lastFolderPath_ && lastFolderPath_.parent() == path()) {
QModelIndex index = folderView_->indexFromFolderPath(lastFolderPath_);
if(index.isValid()) {
folderView_->childView()->scrollTo(index, QAbstractItemView::EnsureVisible);
folderView_->childView()->setCurrentIndex(index);
}
}
// update selection statusbar info when needed
connect(folderModel_, &Fm::FolderModel::fileSizeChanged, this, &TabPage::onFileSizeChanged);
}
void TabPage::onFileSizeChanged(const QModelIndex& index) {
if(folderView_->hasSelection()) {
QModelIndexList indexes = folderView_->selectionModel()->selectedIndexes();
if(indexes.contains(proxyModel_->mapFromSource(index))) {
onSelChanged();
}
}
}
void TabPage::onFolderFinishLoading() {
auto fi = folder_->info();
if(fi) { // if loading of the folder fails, it's possible that we don't have FmFileInfo.
setWindowTitle(fi->displayName());
Q_EMIT titleChanged(fi->displayName());
}
folder_->queryFilesystemInfo(); // FIXME: is this needed?
#if 0
FmFolderView* fv = folder_view;
const FmNavHistoryItem* item;
GtkScrolledWindow* scroll = GTK_SCROLLED_WINDOW(fv);
/* Note: most of the time, we delay the creation of the
* folder model and do it after the whole folder is loaded.
* That is because adding rows into model is much faster when no handlers
* are connected to its signals. So we detach the model from folder view
* and create the model again when it's fully loaded.
* This optimization, however, is not used for FmFolder objects
* with incremental loading (search://) */
if(fm_folder_view_get_model(fv) == nullptr) {
/* create a model for the folder and set it to the view */
FmFolderModel* model = fm_folder_model_new(folder, app_config->show_hidden);
fm_folder_view_set_model(fv, model);
#if FM_CHECK_VERSION(1, 0, 2)
/* since 1.0.2 sorting should be applied on model instead of view */
fm_folder_model_set_sort(model, app_config->sort_by,
(app_config->sort_type == GTK_SORT_ASCENDING) ?
FM_SORT_ASCENDING : FM_SORT_DESCENDING);
#endif
g_object_unref(model);
}
#endif
// update status text
QString& text = statusText_[StatusTextNormal];
text = formatStatusText();
Q_EMIT statusChanged(StatusTextNormal, text);
if(overrideCursor_) {
QApplication::restoreOverrideCursor(); // remove busy cursor
overrideCursor_ = false;
}
// After finishing loading the folder, the model is updated, but Qt delays the UI update
// for performance reasons. Therefore at this point the UI is not up to date.
// For example, the scrollbar ranges are not updated yet. We solve this by installing an Qt timeout handler.
QTimer::singleShot(10, this, SLOT(onUiUpdated()));
}
void TabPage::onFolderError(const Fm::GErrorPtr& err, Fm::Job::ErrorSeverity severity, Fm::Job::ErrorAction& response) {
if(err.domain() == G_IO_ERROR) {
if(err.code() == G_IO_ERROR_NOT_MOUNTED && severity < Fm::Job::ErrorSeverity::CRITICAL) {
auto& path = folder_->path();
MountOperation* op = new MountOperation(this);
op->mount(path);
if(op->wait()) { // blocking event loop, wait for mount operation to finish.
// This will reload the folder, which generates a new "start-loading"
// signal, so we get more "start-loading" signals than "finish-loading"
// signals. FIXME: This is a bug of libfm.
// Because the two signals are not correctly paired, we need to
// remove busy cursor here since "finish-loading" is not emitted.
QApplication::restoreOverrideCursor(); // remove busy cursor
overrideCursor_ = false;
response = Fm::Job::ErrorAction::RETRY;
return;
}
}
}
if(severity >= Fm::Job::ErrorSeverity::MODERATE) {
/* Only show more severe errors to the users and
* ignore milder errors. Otherwise too many error
* message boxes can be annoying.
* This fixes bug #3411298- Show "Permission denied" when switching to super user mode.
* https://sourceforge.net/tracker/?func=detail&aid=3411298&group_id=156956&atid=801864
* */
// FIXME: consider replacing this modal dialog with an info bar to improve usability
QMessageBox::critical(this, tr("Error"), err.message());
}
response = Fm::Job::ErrorAction::CONTINUE;
}
void TabPage::onFolderFsInfo() {
guint64 free, total;
QString& msg = statusText_[StatusTextFSInfo];
if(folder_->getFilesystemInfo(&total, &free)) {
char total_str[64];
char free_str[64];
fm_file_size_to_str(free_str, sizeof(free_str), free, fm_config->si_unit);
fm_file_size_to_str(total_str, sizeof(total_str), total, fm_config->si_unit);
msg = tr("Free space: %1 (Total: %2)")
.arg(QString::fromUtf8(free_str))
.arg(QString::fromUtf8(total_str));
}
else {
msg.clear();
}
Q_EMIT statusChanged(StatusTextFSInfo, msg);
}
QString TabPage::formatStatusText() {
if(proxyModel_ && folder_) {
// FIXME: this is very inefficient
auto files = folder_->files();
int total_files = files.size();
int shown_files = proxyModel_->rowCount();
int hidden_files = total_files - shown_files;
QString text = tr("%n item(s)", "", shown_files);
if(hidden_files > 0) {
text += tr(" (%n hidden)", "", hidden_files);
}
return text;
}
return QString();
}
void TabPage::onFolderRemoved() {
// the folder we're showing is removed, destroy the widget
qDebug("folder removed");
Settings& settings = static_cast<Application*>(qApp)->settings();
// NOTE: call deleteLater() directly from this GObject signal handler
// does not work but I don't know why.
// Maybe it's the problem of glib mainloop integration?
// Call it when idle works, though.
if(settings.closeOnUnmount()) {
QTimer::singleShot(0, this, SLOT(deleteLater()));
}
else {
chdir(Fm::FilePath::homeDir());
}
}
void TabPage::onFolderUnmount() {
// the folder we're showing is unmounted, destroy the widget
qDebug("folder unmount");
// NOTE: call deleteLater() directly from this GObject signal handler
// does not work but I don't know why.
// Maybe it's the problem of glib mainloop integration?
// Call it when idle works, though.
Settings& settings = static_cast<Application*>(qApp)->settings();
// NOTE: call deleteLater() directly from this GObject signal handler
// does not work but I don't know why.
// Maybe it's the problem of glib mainloop integration?
// Call it when idle works, though.
if(settings.closeOnUnmount()) {
QTimer::singleShot(0, this, SLOT(deleteLater()));
}
else {
chdir(Fm::FilePath::homeDir());
}
}
void TabPage::onFolderContentChanged() {
/* update status text */
statusText_[StatusTextNormal] = formatStatusText();
Q_EMIT statusChanged(StatusTextNormal, statusText_[StatusTextNormal]);
}
QString TabPage::pathName() {
// auto disp_path = path().displayName();
// FIXME: displayName() returns invalid path sometimes.
auto disp_path = path().toString();
return QString::fromUtf8(disp_path.get());
}
void TabPage::chdir(Fm::FilePath newPath, bool addHistory) {
// qDebug() << "TABPAGE CHDIR:" << newPath.toString().get();
if(folder_) {
// we're already in the specified dir
if(newPath == folder_->path()) {
return;
}
// reset the status selected text
statusText_[StatusTextSelectedFiles] = QString();
// remember the previous folder path that we have browsed.
lastFolderPath_ = folder_->path();
if(addHistory) {
// store current scroll pos in the browse history
BrowseHistoryItem& item = history_.currentItem();
QAbstractItemView* childView = folderView_->childView();
item.setScrollPos(childView->verticalScrollBar()->value());
}
// free the previous model
if(folderModel_) {
disconnect(folderModel_, &Fm::FolderModel::fileSizeChanged, this, &TabPage::onFileSizeChanged);
proxyModel_->setSourceModel(nullptr);
folderModel_->unref(); // unref the cached model
folderModel_ = nullptr;
}
freeFolder();
}
Q_EMIT titleChanged(newPath.baseName().get()); // FIXME: display name
folder_ = Fm::Folder::fromPath(newPath);
proxyFilter_->setVirtHidden(folder_);
if(addHistory) {
// add current path to browse history
history_.add(path());
}
connect(folder_.get(), &Fm::Folder::startLoading, this, &TabPage::onFolderStartLoading);
connect(folder_.get(), &Fm::Folder::finishLoading, this, &TabPage::onFolderFinishLoading);
// FIXME: Fm::Folder::error() is a bad design and might be removed in the future.
connect(folder_.get(), &Fm::Folder::error, this, &TabPage::onFolderError);
connect(folder_.get(), &Fm::Folder::fileSystemChanged, this, &TabPage::onFolderFsInfo);
/* destroy the page when the folder is unmounted or deleted. */
connect(folder_.get(), &Fm::Folder::removed, this, &TabPage::onFolderRemoved);
connect(folder_.get(), &Fm::Folder::unmount, this, &TabPage::onFolderUnmount);
connect(folder_.get(), &Fm::Folder::contentChanged, this, &TabPage::onFolderContentChanged);
folderModel_ = CachedFolderModel::modelFromFolder(folder_);
// set sorting, considering customized folders
Settings& settings = static_cast<Application*>(qApp)->settings();
folderSettings_ = settings.loadFolderSettings(path());
proxyModel_->sort(folderSettings_.sortColumn(), folderSettings_.sortOrder());
proxyModel_->setFolderFirst(folderSettings_.sortFolderFirst());
proxyModel_->setShowHidden(folderSettings_.showHidden());
proxyModel_->setSortCaseSensitivity(folderSettings_.sortCaseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive);
proxyModel_->setSourceModel(folderModel_);
folderView_->setViewMode(folderSettings_.viewMode());
if(folder_->isLoaded()) {
onFolderStartLoading();
onFolderFinishLoading();
onFolderFsInfo();
}
else {
onFolderStartLoading();
}
}
void TabPage::selectAll() {
folderView_->selectAll();
}
void TabPage::invertSelection() {
folderView_->invertSelection();
}
void TabPage::reload() {
if(folder_) {
proxyFilter_->setVirtHidden(folder_); // reread ".hidden"
// don't select or scroll to the previous folder after reload
lastFolderPath_ = Fm::FilePath();
// but remember the current scroll position
BrowseHistoryItem& item = history_.currentItem();
QAbstractItemView* childView = folderView_->childView();
item.setScrollPos(childView->verticalScrollBar()->value());
folder_->reload();
}
}
// when the current selection in the folder view is changed
void TabPage::onSelChanged() {
QString msg;
if(folderView_->hasSelection()) {
auto files = folderView_->selectedFiles();
int numSel = files.size();
/* FIXME: display total size of all selected files. */
if(numSel == 1) { /* only one file is selected */
auto& fi = files.front();
if(!fi->isDir()) {
msg = QString("\"%1\" (%2) %3")
.arg(fi->displayName())
.arg(Fm::formatFileSize(fi->size(), fm_config->si_unit)) // FIXME: deprecate fm_config
.arg(fi->mimeType()->desc());
}
else {
msg = QString("\"%1\" %2")
.arg(fi->displayName())
.arg(fi->mimeType()->desc());
}
/* FIXME: should we support statusbar plugins as in the gtk+ version? */
}
else {
goffset sum;
GList* l;
msg = tr("%n item(s) selected", nullptr, numSel);
/* don't count if too many files are selected, that isn't lightweight */
if(numSel < 1000) {
sum = 0;
for(auto& fi: files) {
if(fi->isDir()) {
/* if we got a directory then we cannot tell it's size
unless we do deep count but we cannot afford it */
sum = -1;
break;
}
sum += fi->size();
}
if(sum >= 0) {
msg += QString(" (%1)").arg(Fm::formatFileSize(sum, fm_config->si_unit)); // FIXME: deprecate fm_config
}
/* FIXME: should we support statusbar plugins as in the gtk+ version? */
}
/* FIXME: can we show some more info on selection?
that isn't lightweight if a lot of files are selected */
}
}
statusText_[StatusTextSelectedFiles] = msg;
Q_EMIT statusChanged(StatusTextSelectedFiles, msg);
}
void TabPage::backward() {
// remember current scroll position
BrowseHistoryItem& item = history_.currentItem();
QAbstractItemView* childView = folderView_->childView();
item.setScrollPos(childView->verticalScrollBar()->value());
history_.backward();
chdir(history_.currentPath(), false);
}
void TabPage::forward() {
// remember current scroll position
BrowseHistoryItem& item = history_.currentItem();
QAbstractItemView* childView = folderView_->childView();
item.setScrollPos(childView->verticalScrollBar()->value());
history_.forward();
chdir(history_.currentPath(), false);
}
void TabPage::jumpToHistory(int index) {
if(index >= 0 && index < history_.size()) {
// remember current scroll position
BrowseHistoryItem& item = history_.currentItem();
QAbstractItemView* childView = folderView_->childView();
item.setScrollPos(childView->verticalScrollBar()->value());
history_.setCurrentIndex(index);
chdir(history_.currentPath(), false);
}
}
bool TabPage::canUp() {
auto _path = path();
return (_path && _path.hasParent());
}
void TabPage::up() {
auto _path = path();
if(_path) {
auto parent = _path.parent();
if(parent) {
chdir(parent, true);
}
}
}
void TabPage::updateFromSettings(Settings& settings) {
folderView_->updateFromSettings(settings);
}
void TabPage::setViewMode(Fm::FolderView::ViewMode mode) {
if(folderSettings_.viewMode() != mode) {
folderSettings_.setViewMode(mode);
if(folderSettings_.isCustomized()) {
static_cast<Application*>(qApp)->settings().saveFolderSettings(path(), folderSettings_);
}
}
folderView_->setViewMode(mode);
}
void TabPage::sort(int col, Qt::SortOrder order) {
if(folderSettings_.sortColumn() != col || folderSettings_.sortOrder() != order) {
folderSettings_.setSortColumn(Fm::FolderModel::ColumnId(col));
folderSettings_.setSortOrder(order);
if(folderSettings_.isCustomized()) {
static_cast<Application*>(qApp)->settings().saveFolderSettings(path(), folderSettings_);
}
}
if(proxyModel_) {
proxyModel_->sort(col, order);
}
}
void TabPage::setSortFolderFirst(bool value) {
if(folderSettings_.sortFolderFirst() != value) {
folderSettings_.setSortFolderFirst(value);
if(folderSettings_.isCustomized()) {
static_cast<Application*>(qApp)->settings().saveFolderSettings(path(), folderSettings_);
}
}
proxyModel_->setFolderFirst(value);
}
void TabPage::setSortCaseSensitive(bool value) {
if(folderSettings_.sortCaseSensitive() != value) {
folderSettings_.setSortCaseSensitive(value);
if(folderSettings_.isCustomized()) {
static_cast<Application*>(qApp)->settings().saveFolderSettings(path(), folderSettings_);
}
}
proxyModel_->setSortCaseSensitivity(value ? Qt::CaseSensitive : Qt::CaseInsensitive);
}
void TabPage::setShowHidden(bool showHidden) {
if(folderSettings_.showHidden() != showHidden) {
folderSettings_.setShowHidden(showHidden);
if(folderSettings_.isCustomized()) {
static_cast<Application*>(qApp)->settings().saveFolderSettings(path(), folderSettings_);
}
}
if(!proxyModel_) {
return;
}
if(showHidden != proxyModel_->showHidden()) {
proxyModel_->setShowHidden(showHidden);
}
// this may also be called by MainWindow::onTabPageSortFilterChanged to set status message
statusText_[StatusTextNormal] = formatStatusText();
Q_EMIT statusChanged(StatusTextNormal, statusText_[StatusTextNormal]);
}
void TabPage::applyFilter() {
if(!proxyModel_) {
return;
}
proxyModel_->updateFilters();
statusText_[StatusTextNormal] = formatStatusText();
Q_EMIT statusChanged(StatusTextNormal, statusText_[StatusTextNormal]);
}
void TabPage::setCustomizedView(bool value) {
if(folderSettings_.isCustomized() == value) {
return;
}
Settings& settings = static_cast<Application*>(qApp)->settings();
folderSettings_.setCustomized(value);
if(value) { // save customized folder view settings
settings.saveFolderSettings(path(), folderSettings_);
}
else { // use default folder view settings
settings.clearFolderSettings(path());
setShowHidden(settings.showHidden());
setSortCaseSensitive(settings.sortCaseSensitive());
setSortFolderFirst(settings.sortFolderFirst());
sort(settings.sortColumn(), settings.sortOrder());
}
}
} // namespace PCManFM