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libfm-qt-packaging/src/browsehistory.h

133 lines
2.9 KiB

/*
* Copyright (C) 2013 - 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
*
*/
#ifndef FM_BROWSEHISTORY_H
#define FM_BROWSEHISTORY_H
#include "libfmqtglobals.h"
#include <vector>
#include <libfm/fm.h>
#include "core/filepath.h"
namespace Fm {
// class used to story browsing history of folder views
// We use this class to replace FmNavHistory provided by libfm since
// the original Libfm API is hard to use and confusing.
class LIBFM_QT_API BrowseHistoryItem {
public:
explicit BrowseHistoryItem():
scrollPos_(0) {
}
explicit BrowseHistoryItem(Fm::FilePath path, int scrollPos = 0):
path_(std::move(path)),
scrollPos_(scrollPos) {
}
BrowseHistoryItem(const BrowseHistoryItem& other) = default;
~BrowseHistoryItem() {
}
BrowseHistoryItem& operator=(const BrowseHistoryItem& other) {
path_ = other.path_;
scrollPos_ = other.scrollPos_;
return *this;
}
Fm::FilePath path() const {
return path_;
}
int scrollPos() const {
return scrollPos_;
}
void setScrollPos(int pos) {
scrollPos_ = pos;
}
private:
Fm::FilePath path_;
int scrollPos_;
// TODO: we may need to store current selection as well.
};
class LIBFM_QT_API BrowseHistory {
public:
BrowseHistory();
virtual ~BrowseHistory();
int currentIndex() const {
return currentIndex_;
}
void setCurrentIndex(int index);
Fm::FilePath currentPath() const {
return items_[currentIndex_].path();
}
int currentScrollPos() const {
return items_[currentIndex_].scrollPos();
}
BrowseHistoryItem& currentItem() {
return items_[currentIndex_];
}
size_t size() const {
return items_.size();
}
BrowseHistoryItem& at(int index) {
return items_[index];
}
void add(Fm::FilePath path, int scrollPos = 0);
bool canForward() const;
bool canBackward() const;
int backward();
int forward();
int maxCount() const {
return maxCount_;
}
void setMaxCount(int maxCount);
private:
std::vector<BrowseHistoryItem> items_;
int currentIndex_;
int maxCount_;
};
}
#endif // FM_BROWSEHISTORY_H