You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
338 lines
11 KiB
338 lines
11 KiB
/*
|
|
* Copyright (C) 2014 - 2015 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
|
|
#include "dirtreemodelitem.h"
|
|
#include "dirtreemodel.h"
|
|
#include "icontheme.h"
|
|
#include <QDebug>
|
|
|
|
namespace Fm {
|
|
|
|
DirTreeModelItem::DirTreeModelItem():
|
|
fileInfo_(nullptr),
|
|
folder_(nullptr),
|
|
expanded_(false),
|
|
loaded_(false),
|
|
parent_(nullptr),
|
|
placeHolderChild_(nullptr),
|
|
model_(nullptr) {
|
|
}
|
|
|
|
DirTreeModelItem::DirTreeModelItem(FmFileInfo* info, DirTreeModel* model, DirTreeModelItem* parent):
|
|
fileInfo_(fm_file_info_ref(info)),
|
|
folder_(nullptr),
|
|
displayName_(QString::fromUtf8(fm_file_info_get_disp_name(info))),
|
|
icon_(IconTheme::icon(fm_file_info_get_icon(info))),
|
|
expanded_(false),
|
|
loaded_(false),
|
|
parent_(parent),
|
|
placeHolderChild_(nullptr),
|
|
model_(model) {
|
|
|
|
if(info)
|
|
addPlaceHolderChild();
|
|
}
|
|
|
|
DirTreeModelItem::~DirTreeModelItem() {
|
|
if(fileInfo_)
|
|
fm_file_info_unref(fileInfo_);
|
|
|
|
if(folder_)
|
|
freeFolder();
|
|
|
|
// delete child items if needed
|
|
if(!children_.isEmpty()) {
|
|
Q_FOREACH(DirTreeModelItem* item, children_) {
|
|
delete item;
|
|
}
|
|
}
|
|
if(!hiddenChildren_.isEmpty()) {
|
|
Q_FOREACH(DirTreeModelItem* item, hiddenChildren_) {
|
|
delete item;
|
|
}
|
|
}
|
|
}
|
|
|
|
void DirTreeModelItem::addPlaceHolderChild() {
|
|
placeHolderChild_ = new DirTreeModelItem();
|
|
placeHolderChild_->parent_ = this;
|
|
placeHolderChild_->model_ = model_;
|
|
placeHolderChild_->displayName_ = DirTreeModel::tr("Loading...");
|
|
children_.append(placeHolderChild_);
|
|
}
|
|
|
|
void DirTreeModelItem::freeFolder() {
|
|
if(folder_) {
|
|
g_signal_handlers_disconnect_by_func(folder_, gpointer(onFolderFinishLoading), this);
|
|
g_signal_handlers_disconnect_by_func(folder_, gpointer(onFolderFilesAdded), this);
|
|
g_signal_handlers_disconnect_by_func(folder_, gpointer(onFolderFilesRemoved), this);
|
|
g_signal_handlers_disconnect_by_func(folder_, gpointer(onFolderFilesChanged), this);
|
|
g_object_unref(folder_);
|
|
folder_ = nullptr;
|
|
}
|
|
}
|
|
|
|
void DirTreeModelItem::loadFolder() {
|
|
if(!expanded_) {
|
|
/* dynamically load content of the folder. */
|
|
folder_ = fm_folder_from_path(fm_file_info_get_path(fileInfo_));
|
|
/* g_debug("fm_dir_tree_model_load_row()"); */
|
|
/* associate the data with loaded handler */
|
|
g_signal_connect(folder_, "finish-loading", G_CALLBACK(onFolderFinishLoading), this);
|
|
g_signal_connect(folder_, "files-added", G_CALLBACK(onFolderFilesAdded), this);
|
|
g_signal_connect(folder_, "files-removed", G_CALLBACK(onFolderFilesRemoved), this);
|
|
g_signal_connect(folder_, "files-changed", G_CALLBACK(onFolderFilesChanged), this);
|
|
|
|
/* set 'expanded' flag beforehand as callback may check it */
|
|
expanded_ = true;
|
|
/* if the folder is already loaded, call "loaded" handler ourselves */
|
|
if(fm_folder_is_loaded(folder_)) { // already loaded
|
|
GList* file_l;
|
|
FmFileInfoList* files = fm_folder_get_files(folder_);
|
|
for(file_l = fm_file_info_list_peek_head_link(files); file_l; file_l = file_l->next) {
|
|
FmFileInfo* fi = FM_FILE_INFO(file_l->data);
|
|
if(fm_file_info_is_dir(fi)) {
|
|
insertFileInfo(fi);
|
|
}
|
|
}
|
|
onFolderFinishLoading(folder_, this);
|
|
}
|
|
}
|
|
}
|
|
|
|
void DirTreeModelItem::unloadFolder() {
|
|
if(expanded_) { /* do some cleanup */
|
|
/* remove all children, and replace them with a dummy child
|
|
* item to keep expander in the tree view around. */
|
|
|
|
// delete all visible child items
|
|
model_->beginRemoveRows(index(), 0, children_.count() - 1);
|
|
if(!children_.isEmpty()) {
|
|
Q_FOREACH(DirTreeModelItem* item, children_) {
|
|
delete item;
|
|
}
|
|
children_.clear();
|
|
}
|
|
model_->endRemoveRows();
|
|
|
|
// remove hidden children
|
|
if(!hiddenChildren_.isEmpty()) {
|
|
Q_FOREACH(DirTreeModelItem* item, hiddenChildren_) {
|
|
delete item;
|
|
}
|
|
hiddenChildren_.clear();
|
|
}
|
|
|
|
/* now, we have no child since all child items are removed.
|
|
* So we add a place holder child item to keep the expander around. */
|
|
addPlaceHolderChild();
|
|
/* deactivate folder since it will be reactivated on expand */
|
|
freeFolder();
|
|
expanded_ = false;
|
|
loaded_ = false;
|
|
}
|
|
}
|
|
|
|
QModelIndex DirTreeModelItem::index() {
|
|
Q_ASSERT(model_);
|
|
return model_->indexFromItem(this);
|
|
}
|
|
|
|
/* Add file info to parent node to proper position.
|
|
* GtkTreePath tp is the tree path of parent node. */
|
|
DirTreeModelItem* DirTreeModelItem::insertFileInfo(FmFileInfo* fi) {
|
|
// qDebug() << "insertFileInfo: " << fm_file_info_get_disp_name(fi);
|
|
DirTreeModelItem* item = new DirTreeModelItem(fi, model_);
|
|
insertItem(item);
|
|
return item;
|
|
}
|
|
|
|
// find a good position to insert the new item
|
|
int DirTreeModelItem::insertItem(DirTreeModelItem* newItem) {
|
|
if(model_->showHidden() || !newItem->fileInfo_ || !fm_file_info_is_hidden(newItem->fileInfo_)) {
|
|
const char* new_key = fm_file_info_get_collate_key(newItem->fileInfo_);
|
|
int pos = 0;
|
|
QList<DirTreeModelItem*>::iterator it;
|
|
for(it = children_.begin(); it != children_.end(); ++it) {
|
|
DirTreeModelItem* child = *it;
|
|
if(G_UNLIKELY(!child->fileInfo_))
|
|
continue;
|
|
const char* key = fm_file_info_get_collate_key(child->fileInfo_);
|
|
if(strcmp(new_key, key) <= 0)
|
|
break;
|
|
++pos;
|
|
}
|
|
// inform the world that we're about to insert the item
|
|
model_->beginInsertRows(index(), pos, pos);
|
|
newItem->parent_ = this;
|
|
children_.insert(it, newItem);
|
|
model_->endInsertRows();
|
|
return pos;
|
|
}
|
|
else { // hidden folder
|
|
hiddenChildren_.append(newItem);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
// FmFolder signal handlers
|
|
|
|
// static
|
|
void DirTreeModelItem::onFolderFinishLoading(FmFolder* folder, gpointer user_data) {
|
|
DirTreeModelItem* _this = (DirTreeModelItem*)user_data;
|
|
DirTreeModel* model = _this->model_;
|
|
/* set 'loaded' flag beforehand as callback may check it */
|
|
_this->loaded_ = true;
|
|
QModelIndex index = _this->index();
|
|
qDebug() << "folder loaded";
|
|
// remove the placeholder child if needed
|
|
if(_this->children_.count() == 1) { // we have no other child other than the place holder item, leave it
|
|
_this->placeHolderChild_->displayName_ = DirTreeModel::tr("<No sub folders>");
|
|
QModelIndex placeHolderIndex = _this->placeHolderChild_->index();
|
|
// qDebug() << "placeHolderIndex: "<<placeHolderIndex;
|
|
Q_EMIT model->dataChanged(placeHolderIndex, placeHolderIndex);
|
|
}
|
|
else {
|
|
int pos = _this->children_.indexOf(_this->placeHolderChild_);
|
|
model->beginRemoveRows(index, pos, pos);
|
|
_this->children_.removeAt(pos);
|
|
delete _this->placeHolderChild_;
|
|
model->endRemoveRows();
|
|
_this->placeHolderChild_ = nullptr;
|
|
}
|
|
|
|
Q_EMIT model->rowLoaded(index);
|
|
}
|
|
|
|
// static
|
|
void DirTreeModelItem::onFolderFilesAdded(FmFolder* folder, GSList* files, gpointer user_data) {
|
|
GSList* l;
|
|
DirTreeModelItem* _this = (DirTreeModelItem*)user_data;
|
|
for(l = files; l; l = l->next) {
|
|
FmFileInfo* fi = FM_FILE_INFO(l->data);
|
|
if(fm_file_info_is_dir(fi)) { /* FIXME: maybe adding files can be allowed later */
|
|
/* Ideally FmFolder should not emit files-added signals for files that
|
|
* already exists. So there is no need to check for duplication here. */
|
|
_this->insertFileInfo(fi);
|
|
}
|
|
}
|
|
}
|
|
|
|
// static
|
|
void DirTreeModelItem::onFolderFilesRemoved(FmFolder* folder, GSList* files, gpointer user_data) {
|
|
DirTreeModelItem* _this = (DirTreeModelItem*)user_data;
|
|
DirTreeModel* model = _this->model_;
|
|
|
|
for(GSList* l = files; l; l = l->next) {
|
|
FmFileInfo* fi = FM_FILE_INFO(l->data);
|
|
int pos;
|
|
DirTreeModelItem* child = _this->childFromName(fm_file_info_get_name(fi), &pos);
|
|
if(child) {
|
|
model->beginRemoveRows(_this->index(), pos, pos);
|
|
_this->children_.removeAt(pos);
|
|
delete child;
|
|
model->endRemoveRows();
|
|
}
|
|
}
|
|
}
|
|
|
|
// static
|
|
void DirTreeModelItem::onFolderFilesChanged(FmFolder* folder, GSList* files, gpointer user_data) {
|
|
DirTreeModelItem* _this = (DirTreeModelItem*)user_data;
|
|
DirTreeModel* model = _this->model_;
|
|
|
|
for(GSList* l = files; l; l = l->next) {
|
|
FmFileInfo* changedFile = FM_FILE_INFO(l->data);
|
|
int pos;
|
|
DirTreeModelItem* child = _this->childFromName(fm_file_info_get_name(changedFile), &pos);
|
|
if(child) {
|
|
QModelIndex childIndex = child->index();
|
|
Q_EMIT model->dataChanged(childIndex, childIndex);
|
|
}
|
|
}
|
|
}
|
|
|
|
DirTreeModelItem* DirTreeModelItem::childFromName(const char* utf8_name, int* pos) {
|
|
int i = 0;
|
|
for (const auto item : children_) {
|
|
if(item->fileInfo_ && strcmp(fm_file_info_get_name(item->fileInfo_), utf8_name) == 0) {
|
|
if(pos)
|
|
*pos = i;
|
|
return item;
|
|
}
|
|
++i;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
DirTreeModelItem* DirTreeModelItem::childFromPath(FmPath* path, bool recursive) const {
|
|
Q_ASSERT(path != nullptr);
|
|
|
|
Q_FOREACH(DirTreeModelItem* item, children_) {
|
|
// if(item->fileInfo_)
|
|
// qDebug() << "child: " << QString::fromUtf8(fm_file_info_get_disp_name(item->fileInfo_));
|
|
if(item->fileInfo_ && fm_path_equal(fm_file_info_get_path(item->fileInfo_), path)) {
|
|
return item;
|
|
} else if(recursive) {
|
|
DirTreeModelItem* child = item->childFromPath(path, true);
|
|
if(child)
|
|
return child;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void DirTreeModelItem::setShowHidden(bool show) {
|
|
if(show) {
|
|
// move all hidden children to visible list
|
|
Q_FOREACH(DirTreeModelItem* item, hiddenChildren_) {
|
|
insertItem(item);
|
|
}
|
|
hiddenChildren_.clear();
|
|
}
|
|
else { // hide hidden folders
|
|
QModelIndex _index = index();
|
|
QList<DirTreeModelItem*>::iterator it, next;
|
|
int pos = 0;
|
|
for(it = children_.begin(); it != children_.end(); ++pos) {
|
|
DirTreeModelItem* item = *it;
|
|
next = it + 1;
|
|
if(item->fileInfo_) {
|
|
if(fm_file_info_is_hidden(item->fileInfo_)) { // hidden folder
|
|
// remove from the model and add to the hiddenChildren_ list
|
|
model_->beginRemoveRows(_index, pos, pos);
|
|
children_.erase(it);
|
|
hiddenChildren_.append(item);
|
|
model_->endRemoveRows();
|
|
}
|
|
else { // visible folder, recursively filter its children
|
|
item->setShowHidden(show);
|
|
}
|
|
}
|
|
it = next;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
} // namespace Fm
|
|
|