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Reenable drag & drop for the URL navigator
[dolphin.git] / src / dolphinviewcontainer.cpp
1 /***************************************************************************
2 * Copyright (C) 2007 by Peter Penz <peter.penz19@gmail.com> *
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 #include "dolphinviewcontainer.h"
21 #include <KProtocolManager>
22
23 #include <QApplication>
24 #include <QKeyEvent>
25 #include <QItemSelection>
26 #include <QBoxLayout>
27 #include <QTimer>
28 #include <QScrollBar>
29
30 #include <KDesktopFile>
31 #include <KFileItemDelegate>
32 #include <KFilePlacesModel>
33 #include <KLocale>
34 #include <KIconEffect>
35 #include <KIO/NetAccess>
36 #include <KIO/PreviewJob>
37 #include <KNewFileMenu>
38 #include <konqmimedata.h>
39 #include <konq_operations.h>
40 #include <KShell>
41 #include <KUrl>
42 #include <KUrlComboBox>
43 #include <KUrlNavigator>
44 #include <KRun>
45
46 #include "dolphin_generalsettings.h"
47 #include "dolphinmainwindow.h"
48 #include "filterbar/filterbar.h"
49 #include "search/dolphinsearchbox.h"
50 #include "statusbar/dolphinstatusbar.h"
51 #include "views/dolphinplacesmodel.h"
52 #include "views/draganddrophelper.h"
53 #include "views/viewmodecontroller.h"
54 #include "views/viewproperties.h"
55
56 DolphinViewContainer::DolphinViewContainer(const KUrl& url, QWidget* parent) :
57 QWidget(parent),
58 m_topLayout(0),
59 m_urlNavigator(0),
60 m_searchBox(0),
61 m_view(0),
62 m_filterBar(0),
63 m_statusBar(0),
64 m_statusBarTimer(0),
65 m_statusBarTimestamp()
66 {
67 hide();
68
69 m_topLayout = new QVBoxLayout(this);
70 m_topLayout->setSpacing(0);
71 m_topLayout->setMargin(0);
72
73 m_urlNavigator = new KUrlNavigator(DolphinPlacesModel::instance(), url, this);
74 connect(m_urlNavigator, SIGNAL(urlsDropped(KUrl,QDropEvent*)),
75 this, SLOT(dropUrls(KUrl,QDropEvent*)));
76 connect(m_urlNavigator, SIGNAL(activated()),
77 this, SLOT(activate()));
78 connect(m_urlNavigator->editor(), SIGNAL(completionModeChanged(KGlobalSettings::Completion)),
79 this, SLOT(saveUrlCompletionMode(KGlobalSettings::Completion)));
80
81 const GeneralSettings* settings = GeneralSettings::self();
82 m_urlNavigator->setUrlEditable(settings->editableUrl());
83 m_urlNavigator->setShowFullPath(settings->showFullPath());
84 m_urlNavigator->setHomeUrl(KUrl(settings->homeUrl()));
85 KUrlComboBox* editor = m_urlNavigator->editor();
86 editor->setCompletionMode(KGlobalSettings::Completion(settings->urlCompletionMode()));
87
88 m_searchBox = new DolphinSearchBox(this);
89 m_searchBox->hide();
90 connect(m_searchBox, SIGNAL(closeRequest()), this, SLOT(closeSearchBox()));
91 connect(m_searchBox, SIGNAL(search(QString)), this, SLOT(startSearching(QString)));
92 connect(m_searchBox, SIGNAL(returnPressed(QString)), this, SLOT(requestFocus()));
93
94 m_view = new DolphinView(url, this);
95 connect(m_view, SIGNAL(urlChanged(KUrl)), m_urlNavigator, SLOT(setUrl(KUrl)));
96 connect(m_view, SIGNAL(writeStateChanged(bool)), this, SIGNAL(writeStateChanged(bool)));
97 connect(m_view, SIGNAL(requestItemInfo(KFileItem)), this, SLOT(showItemInfo(KFileItem)));
98 connect(m_view, SIGNAL(errorMessage(QString)), this, SLOT(showErrorMessage(QString)));
99 connect(m_view, SIGNAL(infoMessage(QString)), this, SLOT(showInfoMessage(QString)));
100 connect(m_view, SIGNAL(itemActivated(KFileItem)), this, SLOT(slotItemActivated(KFileItem)));
101 connect(m_view, SIGNAL(redirection(KUrl,KUrl)), this, SLOT(redirect(KUrl,KUrl)));
102 connect(m_view, SIGNAL(startedPathLoading(KUrl)), this, SLOT(slotStartedPathLoading()));
103 connect(m_view, SIGNAL(finishedPathLoading(KUrl)), this, SLOT(slotFinishedPathLoading()));
104 connect(m_view, SIGNAL(itemCountChanged()), this, SLOT(delayedStatusBarUpdate()));
105 connect(m_view, SIGNAL(pathLoadingProgress(int)), this, SLOT(updateProgress(int)));
106 connect(m_view, SIGNAL(infoMessage(QString)), this, SLOT(showInfoMessage(QString)));
107 connect(m_view, SIGNAL(errorMessage(QString)), this, SLOT(showErrorMessage(QString)));
108 connect(m_view, SIGNAL(urlIsFileError(KUrl)), this, SLOT(openFile(KUrl)));
109 connect(m_view, SIGNAL(selectionChanged(KFileItemList)), this, SLOT(delayedStatusBarUpdate()));
110 connect(m_view, SIGNAL(operationCompletedMessage(QString)), this, SLOT(showOperationCompletedMessage(QString)));
111 connect(m_view, SIGNAL(urlAboutToBeChanged(KUrl)), this, SLOT(slotViewUrlAboutToBeChanged(KUrl)));
112
113 connect(m_urlNavigator, SIGNAL(urlAboutToBeChanged(KUrl)),
114 this, SLOT(slotUrlNavigatorLocationAboutToBeChanged(KUrl)));
115 connect(m_urlNavigator, SIGNAL(urlChanged(KUrl)),
116 this, SLOT(slotUrlNavigatorLocationChanged(KUrl)));
117 connect(m_urlNavigator, SIGNAL(historyChanged()),
118 this, SLOT(slotHistoryChanged()));
119
120 // initialize status bar
121 m_statusBar = new DolphinStatusBar(this, m_view);
122 connect(m_statusBar, SIGNAL(stopPressed()), this, SLOT(stopLoading()));
123
124 m_statusBarTimer = new QTimer(this);
125 m_statusBarTimer->setSingleShot(true);
126 m_statusBarTimer->setInterval(300);
127 connect(m_statusBarTimer, SIGNAL(timeout()),
128 this, SLOT(updateStatusBar()));
129
130 KIO::FileUndoManager* undoManager = KIO::FileUndoManager::self();
131 connect(undoManager, SIGNAL(jobRecordingFinished(CommandType)),
132 this, SLOT(delayedStatusBarUpdate()));
133
134 // initialize filter bar
135 m_filterBar = new FilterBar(this);
136 m_filterBar->setVisible(settings->filterBar());
137 connect(m_filterBar, SIGNAL(filterChanged(QString)),
138 this, SLOT(setNameFilter(QString)));
139 connect(m_filterBar, SIGNAL(closeRequest()),
140 this, SLOT(closeFilterBar()));
141 connect(m_view, SIGNAL(urlChanged(KUrl)),
142 m_filterBar, SLOT(clear()));
143
144 m_topLayout->addWidget(m_urlNavigator);
145 m_topLayout->addWidget(m_searchBox);
146 m_topLayout->addWidget(m_view);
147 m_topLayout->addWidget(m_filterBar);
148 m_topLayout->addWidget(m_statusBar);
149
150 setSearchModeEnabled(isSearchUrl(url));
151 }
152
153 DolphinViewContainer::~DolphinViewContainer()
154 {
155 }
156
157 KUrl DolphinViewContainer::url() const
158 {
159 return m_view->url();
160 }
161
162 void DolphinViewContainer::setActive(bool active)
163 {
164 m_urlNavigator->setActive(active);
165 m_view->setActive(active);
166 }
167
168 bool DolphinViewContainer::isActive() const
169 {
170 Q_ASSERT(m_view->isActive() == m_urlNavigator->isActive());
171 return m_view->isActive();
172 }
173
174 const DolphinStatusBar* DolphinViewContainer::statusBar() const
175 {
176 return m_statusBar;
177 }
178
179 DolphinStatusBar* DolphinViewContainer::statusBar()
180 {
181 return m_statusBar;
182 }
183
184 const KUrlNavigator* DolphinViewContainer::urlNavigator() const
185 {
186 return m_urlNavigator;
187 }
188
189 KUrlNavigator* DolphinViewContainer::urlNavigator()
190 {
191 return m_urlNavigator;
192 }
193
194 const DolphinView* DolphinViewContainer::view() const
195 {
196 return m_view;
197 }
198
199 DolphinView* DolphinViewContainer::view()
200 {
201 return m_view;
202 }
203
204 const DolphinSearchBox* DolphinViewContainer::searchBox() const
205 {
206 return m_searchBox;
207 }
208
209 DolphinSearchBox* DolphinViewContainer::searchBox()
210 {
211 return m_searchBox;
212 }
213
214 void DolphinViewContainer::refresh()
215 {
216 if (GeneralSettings::modifiedStartupSettings()) {
217 // The startup settings should only get applied if they have been
218 // modified by the user. Otherwise keep the (possibly) different current
219 // settings of the URL navigator and the filterbar.
220 m_urlNavigator->setUrlEditable(GeneralSettings::editableUrl());
221 m_urlNavigator->setShowFullPath(GeneralSettings::showFullPath());
222 setFilterBarVisible(GeneralSettings::filterBar());
223 }
224
225 m_view->refresh();
226 m_statusBar->refresh();
227 }
228
229 bool DolphinViewContainer::isFilterBarVisible() const
230 {
231 return m_filterBar->isVisible();
232 }
233
234 void DolphinViewContainer::setSearchModeEnabled(bool enabled)
235 {
236 if (enabled == isSearchModeEnabled()) {
237 if (enabled && !m_searchBox->hasFocus()) {
238 m_searchBox->setFocus();
239 m_searchBox->selectAll();
240 }
241 return;
242 }
243
244 m_searchBox->setVisible(enabled);
245 m_urlNavigator->setVisible(!enabled);
246
247 if (enabled) {
248 KUrl url = m_urlNavigator->locationUrl();
249 m_searchBox->setText(QString());
250 m_searchBox->setReadOnly(isSearchUrl(url), url);
251
252 // Remember the most recent non-search URL as search path
253 // of the search-box, so that it can be restored
254 // when switching back to the URL navigator.
255 int index = m_urlNavigator->historyIndex();
256 const int historySize = m_urlNavigator->historySize();
257 while (isSearchUrl(url) && (index < historySize)) {
258 ++index;
259 url = m_urlNavigator->locationUrl(index);
260 }
261
262 if (!isSearchUrl(url)) {
263 m_searchBox->setSearchPath(url);
264 }
265 } else {
266 // Restore the URL for the URL navigator. If Dolphin has been
267 // started with a search-URL, the home URL is used as fallback.
268 const KUrl url = m_searchBox->searchPath();
269 if (url.isValid() && !url.isEmpty()) {
270 if (isSearchUrl(url)) {
271 m_urlNavigator->goHome();
272 } else {
273 m_urlNavigator->setLocationUrl(url);
274 }
275 }
276 }
277
278 emit searchModeChanged(enabled);
279 }
280
281 bool DolphinViewContainer::isSearchModeEnabled() const
282 {
283 return m_searchBox->isVisible();
284 }
285
286 void DolphinViewContainer::setUrl(const KUrl& newUrl)
287 {
288 if (newUrl != m_urlNavigator->locationUrl()) {
289 m_urlNavigator->setLocationUrl(newUrl);
290 }
291 }
292
293 void DolphinViewContainer::setFilterBarVisible(bool visible)
294 {
295 Q_ASSERT(m_filterBar);
296 if (visible) {
297 m_filterBar->show();
298 m_filterBar->setFocus();
299 m_filterBar->selectAll();
300 } else {
301 closeFilterBar();
302 }
303 }
304
305 void DolphinViewContainer::delayedStatusBarUpdate()
306 {
307 if (m_statusBarTimer->isActive() && (m_statusBarTimestamp.elapsed() > 2000)) {
308 // No update of the statusbar has been done during the last 2 seconds,
309 // although an update has been requested. Trigger an immediate update.
310 m_statusBarTimer->stop();
311 updateStatusBar();
312 } else {
313 // Invoke updateStatusBar() with a small delay. This assures that
314 // when a lot of delayedStatusBarUpdates() are done in a short time,
315 // no bottleneck is given.
316 m_statusBarTimer->start();
317 }
318 }
319
320 void DolphinViewContainer::updateStatusBar()
321 {
322 m_statusBarTimestamp.start();
323
324 const QString newMessage = m_view->statusBarText();
325 m_statusBar->setDefaultText(newMessage);
326
327 // We don't want to override errors. Other messages are only protected by
328 // the Statusbar itself depending on timings (see DolphinStatusBar::setMessage).
329 if (m_statusBar->type() != DolphinStatusBar::Error) {
330 m_statusBar->setMessage(newMessage, DolphinStatusBar::Default);
331 }
332 }
333
334 void DolphinViewContainer::updateProgress(int percent)
335 {
336 if (m_statusBar->progressText().isEmpty()) {
337 m_statusBar->setProgressText(i18nc("@info:progress", "Loading folder..."));
338 }
339 m_statusBar->setProgress(percent);
340 }
341
342 void DolphinViewContainer::slotStartedPathLoading()
343 {
344 if (isSearchUrl(url())) {
345 // Search KIO-slaves usually don't provide any progress information. Give
346 // a hint to the user that a searching is done:
347 updateStatusBar();
348 m_statusBar->setProgressText(i18nc("@info", "Searching..."));
349 m_statusBar->setProgress(-1);
350 } else {
351 // Trigger an undetermined progress indication. The progress
352 // information in percent will be triggered by the percent() signal
353 // of the directory lister later.
354 updateProgress(-1);
355 }
356 }
357
358 void DolphinViewContainer::slotFinishedPathLoading()
359 {
360 if (!m_statusBar->progressText().isEmpty()) {
361 m_statusBar->setProgressText(QString());
362 m_statusBar->setProgress(100);
363 }
364
365 if (isSearchUrl(url()) && m_view->items().isEmpty()) {
366 // The dir lister has been completed on a Nepomuk-URI and no items have been found. Instead
367 // of showing the default status bar information ("0 items") a more helpful information is given:
368 m_statusBar->setMessage(i18nc("@info:status", "No items found."), DolphinStatusBar::Information);
369 } else {
370 updateStatusBar();
371 }
372 }
373
374 void DolphinViewContainer::slotItemActivated(const KFileItem& item)
375 {
376 KUrl url = item.targetUrl();
377
378 if (item.isDir()) {
379 m_view->setUrl(url);
380 return;
381 }
382
383 if (GeneralSettings::browseThroughArchives() && item.isFile() && url.isLocalFile()) {
384 // Generic mechanism for redirecting to tar:/<path>/ when clicking on a tar file,
385 // zip:/<path>/ when clicking on a zip file, etc.
386 // The .protocol file specifies the mimetype that the kioslave handles.
387 // Note that we don't use mimetype inheritance since we don't want to
388 // open OpenDocument files as zip folders...
389 const QString protocol = KProtocolManager::protocolForArchiveMimetype(item.mimetype());
390 if (!protocol.isEmpty()) {
391 url.setProtocol(protocol);
392 m_view->setUrl(url);
393 return;
394 }
395 }
396
397 if (item.mimetype() == QLatin1String("application/x-desktop")) {
398 // Redirect to the URL in Type=Link desktop files
399 KDesktopFile desktopFile(url.toLocalFile());
400 if (desktopFile.hasLinkType()) {
401 url = desktopFile.readUrl();
402 m_view->setUrl(url);
403 return;
404 }
405 }
406
407 item.run();
408 }
409
410 void DolphinViewContainer::openFile(const KUrl& url)
411 {
412 const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url);
413 slotItemActivated(item);
414 }
415
416 void DolphinViewContainer::showItemInfo(const KFileItem& item)
417 {
418 if (item.isNull()) {
419 // Only clear the status bar if unimportant messages are shown.
420 // This prevents that information- or error-messages get hidden
421 // by moving the mouse above the viewport or when closing the
422 // context menu.
423 if (m_statusBar->type() == DolphinStatusBar::Default) {
424 m_statusBar->clear();
425 }
426 } else {
427 QString message;
428 if (item.isDir()) {
429 message = item.text();
430 } else {
431 message = i18nc("@info:status filename (type)", "%1 (%2)", item.text(), item.mimeComment());
432 }
433 m_statusBar->setMessage(message, DolphinStatusBar::Default);
434 }
435 }
436
437 void DolphinViewContainer::showInfoMessage(const QString& msg)
438 {
439 m_statusBar->setMessage(msg, DolphinStatusBar::Information);
440 }
441
442 void DolphinViewContainer::showErrorMessage(const QString& msg)
443 {
444 m_statusBar->setMessage(msg, DolphinStatusBar::Error);
445 }
446
447 void DolphinViewContainer::showOperationCompletedMessage(const QString& msg)
448 {
449 m_statusBar->setMessage(msg, DolphinStatusBar::OperationCompleted);
450 }
451
452 void DolphinViewContainer::closeFilterBar()
453 {
454 m_filterBar->hide();
455 m_filterBar->clear();
456 m_view->setFocus();
457 emit showFilterBarChanged(false);
458 }
459
460 void DolphinViewContainer::setNameFilter(const QString& nameFilter)
461 {
462 m_view->setNameFilter(nameFilter);
463 delayedStatusBarUpdate();
464 }
465
466 void DolphinViewContainer::activate()
467 {
468 setActive(true);
469 }
470
471 void DolphinViewContainer::slotViewUrlAboutToBeChanged(const KUrl& url)
472 {
473 // URL changes of the view can happen in two ways:
474 // 1. The URL navigator gets changed and will trigger the view to update its URL
475 // 2. The URL of the view gets changed and will trigger the URL navigator to update
476 // its URL (e.g. by clicking on an item)
477 // In this scope the view-state may only get saved in case 2:
478 if (url != m_urlNavigator->locationUrl()) {
479 saveViewState();
480 }
481 }
482
483 void DolphinViewContainer::slotUrlNavigatorLocationAboutToBeChanged(const KUrl& url)
484 {
485 // URL changes of the view can happen in two ways:
486 // 1. The URL navigator gets changed and will trigger the view to update its URL
487 // 2. The URL of the view gets changed and will trigger the URL navigator to update
488 // its URL (e.g. by clicking on an item)
489 // In this scope the view-state may only get saved in case 1:
490 if (url != m_view->url()) {
491 saveViewState();
492 }
493 }
494
495 void DolphinViewContainer::slotUrlNavigatorLocationChanged(const KUrl& url)
496 {
497 if (KProtocolManager::supportsListing(url)) {
498 setSearchModeEnabled(isSearchUrl(url));
499 m_view->setUrl(url);
500
501 if (isActive() && !isSearchUrl(url)) {
502 // When an URL has been entered, the view should get the focus.
503 // The focus must be requested asynchronously, as changing the URL might create
504 // a new view widget.
505 QTimer::singleShot(0, this, SLOT(requestFocus()));
506 }
507 } else if (KProtocolManager::isSourceProtocol(url)) {
508 QString app = "konqueror";
509 if (url.protocol().startsWith(QLatin1String("http"))) {
510 showErrorMessage(i18nc("@info:status",
511 "Dolphin does not support web pages, the web browser has been launched"));
512 const KConfigGroup config(KSharedConfig::openConfig("kdeglobals"), "General");
513 const QString browser = config.readEntry("BrowserApplication");
514 if (!browser.isEmpty()) {
515 app = browser;
516 if (app.startsWith('!')) {
517 // a literal command has been configured, remove the '!' prefix
518 app = app.mid(1);
519 }
520 }
521 } else {
522 showErrorMessage(i18nc("@info:status",
523 "Protocol not supported by Dolphin, Konqueror has been launched"));
524 }
525
526 const QString secureUrl = KShell::quoteArg(url.pathOrUrl());
527 const QString command = app + ' ' + secureUrl;
528 KRun::runCommand(command, app, app, this);
529 } else {
530 showErrorMessage(i18nc("@info:status", "Invalid protocol"));
531 }
532 }
533
534 void DolphinViewContainer::dropUrls(const KUrl& destination, QDropEvent* event)
535 {
536 const KFileItem destItem(KFileItem::Unknown, KFileItem::Unknown, destination);
537 DragAndDropHelper::dropUrls(destItem, event);
538 }
539
540 void DolphinViewContainer::redirect(const KUrl& oldUrl, const KUrl& newUrl)
541 {
542 Q_UNUSED(oldUrl);
543 const bool block = m_urlNavigator->signalsBlocked();
544 m_urlNavigator->blockSignals(true);
545
546 // Assure that the location state is reset for redirection URLs. This
547 // allows to skip redirection URLs when going back or forward in the
548 // URL history.
549 m_urlNavigator->saveLocationState(QByteArray());
550 m_urlNavigator->setLocationUrl(newUrl);
551 setSearchModeEnabled(isSearchUrl(newUrl));
552
553 m_urlNavigator->blockSignals(block);
554 }
555
556 void DolphinViewContainer::requestFocus()
557 {
558 m_view->setFocus();
559 }
560
561 void DolphinViewContainer::saveUrlCompletionMode(KGlobalSettings::Completion completion)
562 {
563 GeneralSettings::setUrlCompletionMode(completion);
564 }
565
566 void DolphinViewContainer::slotHistoryChanged()
567 {
568 QByteArray locationState = m_urlNavigator->locationState();
569 if (!locationState.isEmpty()) {
570 QDataStream stream(&locationState, QIODevice::ReadOnly);
571 m_view->restoreState(stream);
572 }
573 }
574
575 void DolphinViewContainer::startSearching(const QString &text)
576 {
577 Q_UNUSED(text);
578 const KUrl url = m_searchBox->urlForSearching();
579 if (url.isValid() && !url.isEmpty()) {
580 m_urlNavigator->setLocationUrl(url);
581 }
582 }
583
584 void DolphinViewContainer::closeSearchBox()
585 {
586 setSearchModeEnabled(false);
587 }
588
589 void DolphinViewContainer::stopLoading()
590 {
591 m_view->stopLoading();
592 m_statusBar->setProgress(100);
593 }
594
595 bool DolphinViewContainer::isSearchUrl(const KUrl& url) const
596 {
597 const QString protocol = url.protocol();
598 return protocol.contains("search") || (protocol == QLatin1String("nepomuk"));
599 }
600
601 void DolphinViewContainer::saveViewState()
602 {
603 QByteArray locationState;
604 QDataStream stream(&locationState, QIODevice::WriteOnly);
605 m_view->saveState(stream);
606 m_urlNavigator->saveLocationState(locationState);
607 }
608
609 #include "dolphinviewcontainer.moc"