src/dolphinviewcontainer.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20
  21 #ifndef DOLPHINVIEWCONTAINER_H
  22 #define DOLPHINVIEWCONTAINER_H
  23
  24 #include "dolphinview.h"
  25
  26 #include <kfileitem.h>
  27 #include <kfileitemdelegate.h>
  28 #include <kglobalsettings.h>
  29 #include <kio/job.h>
  30
  31 #include <kurlnavigator.h>
  32
  33 #include <QtGui/QKeyEvent>
  34 #include <QtCore/QLinkedList>
  35 #include <QtGui/QListView>
  36 #include <QtGui/QBoxLayout>
  37 #include <QtGui/QWidget>
  38
  39 class FilterBar;
  40 class KUrl;
  41 class DolphinModel;
  42 class KUrlNavigator;
  43 class DolphinDirLister;
  44 class DolphinMainWindow;
  45 class DolphinSortFilterProxyModel;
  46 class DolphinStatusBar;
  47
  48 /**
  49  * @short Represents a view for the directory content
  50  *        including the navigation bar, filter bar and status bar.
  51  *
  52  * View modes for icons, details and columns are supported. Currently
  53  * Dolphin allows to have up to two views inside the main window.
  54  *
  55  * @see DolphinView
  56  * @see FilterBar
  57  * @see KUrlNavigator
  58  * @see DolphinStatusBar
  59  */
  60 class DolphinViewContainer : public QWidget
  61 {
  62     Q_OBJECT
  63
  64 public:
  65     DolphinViewContainer(DolphinMainWindow* mainwindow,
  66                          QWidget *parent,
  67                          const KUrl& url);
  68
  69     virtual ~DolphinViewContainer();
  70
  71     /**
  72      * Sets the current active URL, where all actions are applied. The
  73      * URL navigator is synchronized with this URL. The signals
  74      * KUrlNavigator::urlChanged() and KUrlNavigator::historyChanged()
  75      * are emitted.
  76      * @see DolphinViewContainer::urlNavigator()
  77      */
  78     void setUrl(const KUrl& url);
  79
  80     /**
  81      * Returns the current active URL, where all actions are applied.
  82      * The URL navigator is synchronized with this URL.
  83      */
  84     const KUrl& url() const;
  85
  86     /**
  87      * If \a active is true, the view container will marked as active. The active
  88      * view container is defined as view where all actions are applied to.
  89      */
  90     void setActive(bool active);
  91     bool isActive() const;
  92
  93     const DolphinStatusBar* statusBar() const;
  94     DolphinStatusBar* statusBar();
  95
  96     /**
  97      * Returns true, if the URL shown by the navigation bar is editable.
  98      * @see KUrlNavigator
  99      */
 100     bool isUrlEditable() const;
 101
 102     const KUrlNavigator* urlNavigator() const;
 103     KUrlNavigator* urlNavigator();
 104
 105     const DolphinView* view() const;
 106     DolphinView* view();
 107
 108     /**
 109      * Refreshes the view container to get synchronized with the (updated) Dolphin settings.
 110      */
 111     void refresh();
 112
 113     /** Returns true, if the filter bar is visible. */
 114     bool isFilterBarVisible() const;
 115
 116 public slots:
 117     /**
 118      * Popups the filter bar above the status bar if \a show is true.
 119      */
 120     void showFilterBar(bool show);
 121
 122 signals:
 123     /**
 124      * Is emitted whenever the filter bar has changed its visibility state.
 125      */
 126     void showFilterBarChanged(bool shown);
 127
 128 private slots:
 129     /**
 130      * Updates the number of items (= number of files + number of
 131      * directories) in the statusbar. If files are selected, the number
 132      * of selected files and the sum of the filesize is shown. The update
 133      * is done asynchronously, as getting the sum of the
 134      * filesizes can be an expensive operation.
 135      */
 136     void delayedStatusBarUpdate();
 137
 138     /**
 139      * Is invoked by DolphinViewContainer::delayedStatusBarUpdate() and
 140      * updates the status bar synchronously.
 141      */
 142     void updateStatusBar();
 143
 144     void updateProgress(int percent);
 145
 146     /**
 147      * Assures that the viewport position is restored and updates the
 148      * statusbar to reflect the current content.
 149      */
 150     void slotDirListerCompleted();
 151
 152     /**
 153      * Handles clicking on an item. If the item is a directory, the
 154      * directory is opened in the view. If the item is a file, the file
 155      * gets started by the corresponding application.
 156      */
 157     void slotItemTriggered(const KFileItem& item);
 158
 159     /**
 160      * Opens a the file \a url by opening the corresponding application.
 161      * Is connected with the signal urlIsFile() from DolphinDirLister and will
 162      * get invoked if the user manually has entered a file into the URL navigator.
 163      */
 164     void openFile(const KUrl& url);
 165
 166     /**
 167      * Shows the information for the item \a item inside the statusbar. If the
 168      * item is null, the default statusbar information is shown.
 169      */
 170     void showItemInfo(const KFileItem& item);
 171
 172     /** Shows the information \a msg inside the statusbar. */
 173     void showInfoMessage(const QString& msg);
 174
 175     /** Shows the error message \a msg inside the statusbar. */
 176     void showErrorMessage(const QString& msg);
 177
 178     /** Shows the "operation completed" message \a msg inside the statusbar. */
 179     void showOperationCompletedMessage(const QString& msg);
 180
 181     void closeFilterBar();
 182
 183     /**
 184      * Filters the currently shown items by \a nameFilter. All items
 185      * which contain the given filter string will be shown.
 186      */
 187     void setNameFilter(const QString& nameFilter);
 188
 189     /**
 190      * Opens the context menu on the current mouse position.
 191      * @item          File item context. If item is null, the context menu
 192      *                should be applied to \a url.
 193      * @url           URL which contains \a item.
 194      * @customActions Actions that should be added to the context menu,
 195      *                if the file item is null.
 196      */
 197     void openContextMenu(const KFileItem& item,
 198                          const KUrl& url,
 199                          const QList<QAction*>& customActions);
 200
 201     /**
 202      * Saves the position of the contents to the
 203      * current history element.
 204      */
 205     void saveContentsPos(int x, int y);
 206
 207     /**
 208      * Restores the contents position of the view, if the view
 209      * is part of the history.
 210      */
 211     void restoreContentsPos();
 212
 213     /**
 214      * Marks the view container as active
 215      * (see DolphinViewContainer::setActive()).
 216      */
 217     void activate();
 218
 219     /**
 220      * Restores the current view to show \a url and assures
 221      * that the root URL of the view is respected.
 222      */
 223     void restoreView(const KUrl& url);
 224
 225     /**
 226      * Saves the root URL of the current URL \a url
 227      * into the URL navigator.
 228      */
 229     void saveRootUrl(const KUrl& url);
 230
 231     /**
 232      * Is connected with the URL navigator and drops the URLs
 233      * above the destination \a destination.
 234      */
 235     void dropUrls(const KUrl& destination, QDropEvent* event);
 236
 237     /**
 238      * Is invoked when a redirection is done and changes the
 239      * URL of the URL navigator to \a newUrl without triggering
 240      * a reloading of the directory.
 241      */
 242     void redirect(const KUrl& oldUrl, const KUrl& newUrl);
 243
 244     /** Requests the focus for the view \a m_view. */
 245     void requestFocus();
 246
 247     /**
 248      * Saves the currently used URL completion mode of
 249      * the URL navigator.
 250      */
 251     void saveUrlCompletionMode(KGlobalSettings::Completion completion);
 252
 253     void slotHistoryChanged();
 254
 255 private:
 256     bool m_showProgress;
 257     bool m_isFolderWritable;
 258
 259     DolphinMainWindow* m_mainWindow;
 260     QVBoxLayout* m_topLayout;
 261     KUrlNavigator* m_urlNavigator;
 262
 263     DolphinView* m_view;
 264
 265     FilterBar* m_filterBar;
 266
 267     DolphinStatusBar* m_statusBar;
 268     QTimer* m_statusBarTimer;
 269
 270     DolphinModel* m_dolphinModel;
 271     DolphinDirLister* m_dirLister;
 272     DolphinSortFilterProxyModel* m_proxyModel;
 273 };
 274
 275 inline const DolphinStatusBar* DolphinViewContainer::statusBar() const
 276 {
 277     return m_statusBar;
 278 }
 279
 280 inline DolphinStatusBar* DolphinViewContainer::statusBar()
 281 {
 282     return m_statusBar;
 283 }
 284
 285 inline const KUrlNavigator* DolphinViewContainer::urlNavigator() const
 286 {
 287     return m_urlNavigator;
 288 }
 289
 290 inline KUrlNavigator* DolphinViewContainer::urlNavigator()
 291 {
 292     return m_urlNavigator;
 293 }
 294
 295 inline const DolphinView* DolphinViewContainer::view() const
 296 {
 297     return m_view;
 298 }
 299
 300 inline DolphinView* DolphinViewContainer::view()
 301 {
 302     return m_view;
 303 }
 304
 305 #endif // DOLPHINVIEWCONTAINER_H