KDirLister Class Reference
from PyKDE4.kio import *
Inherits: QObject
Detailed Description
Enumerations | |
Changes | { NONE, NAME_FILTER, MIME_FILTER, DOT_FILES, DIR_ONLY_MODE } |
OpenUrlFlag | { NoFlags, Keep, Reload } Typesafe wrapper: OpenUrlFlags |
WhichItems | { AllItems, FilteredItems } |
Signals | |
canceled () | |
canceled (KUrl _url) | |
clear () | |
clear (KUrl _url) | |
completed () | |
completed (KUrl _url) | |
deleteItem (KFileItem _fileItem) | |
infoMessage (QString msg) | |
itemsFilteredByMime (KFileItemList items) | |
newItems (KFileItemList items) | |
percent (int percent) | |
processedSize (KIO.filesize_t size) | |
redirection (KUrl _url) | |
redirection (KUrl oldUrl, KUrl newUrl) | |
refreshItems ([QPair | |
speed (int bytes_per_second) | |
started (KUrl _url) | |
totalSize (KIO.filesize_t size) | |
Methods | |
__init__ (self, QObject parent=0) | |
bool | autoErrorHandlingEnabled (self) |
bool | autoUpdate (self) |
canceled (self) | |
canceled (self, KUrl _url) | |
clear (self) | |
clear (self, KUrl _url) | |
clearMimeFilter (self) | |
completed (self) | |
completed (self, KUrl _url) | |
bool | delayedMimeTypes (self) |
deleteItem (self, KFileItem _fileItem) | |
bool | dirOnlyMode (self) |
KUrl.List | directories (self) |
bool | doMimeFilter (self, QString mime, QStringList filters) |
bool | doNameFilter (self, QString name, [QRegExp] filters) |
emitChanges (self) | |
KFileItem | findByName (self, QString name) |
KFileItem | findByUrl (self, KUrl _url) |
handleError (self, KIO.Job a0) | |
infoMessage (self, QString msg) | |
bool | isFinished (self) |
KFileItemList | items (self, KDirLister.WhichItems which=KDirLister.FilteredItems) |
itemsFilteredByMime (self, KFileItemList items) | |
KFileItemList | itemsForDir (self, KUrl dir, KDirLister.WhichItems which=KDirLister.FilteredItems) |
QWidget | mainWindow (self) |
bool | matchesFilter (self, QString name) |
bool | matchesFilter (self, KFileItem a0) |
bool | matchesMimeFilter (self, QString mime) |
bool | matchesMimeFilter (self, KFileItem a0) |
QStringList | mimeFilters (self) |
QString | nameFilter (self) |
newItems (self, KFileItemList items) | |
bool | openUrl (self, KUrl _url, KDirLister.OpenUrlFlags _flags=KDirLister.NoFlags) |
percent (self, int percent) | |
processedSize (self, KIO.filesize_t size) | |
redirection (self, KUrl _url) | |
redirection (self, KUrl oldUrl, KUrl newUrl) | |
refreshItems (self, [QPair | |
KFileItem | rootItem (self) |
setAutoErrorHandlingEnabled (self, bool enable, QWidget parent) | |
setAutoUpdate (self, bool enable) | |
setDelayedMimeTypes (self, bool delayedMimeTypes) | |
setDirOnlyMode (self, bool dirsOnly) | |
setMainWindow (self, QWidget window) | |
setMimeExcludeFilter (self, QStringList mimeList) | |
setMimeFilter (self, QStringList mimeList) | |
setNameFilter (self, QString filter) | |
setShowingDotFiles (self, bool _showDotFiles) | |
bool | showingDotFiles (self) |
speed (self, int bytes_per_second) | |
started (self, KUrl _url) | |
stop (self) | |
stop (self, KUrl _url) | |
totalSize (self, KIO.filesize_t size) | |
updateDirectory (self, KUrl _dir) | |
KUrl | url (self) |
Method Documentation
__init__ | ( | self, | ||
QObject | parent=0 | |||
) |
Create a directory lister.
bool autoErrorHandlingEnabled | ( | self ) |
Check whether auto error handling is enabled. If enabled, it will show an error dialog to the user when an error occurs. It is turned on by default.
- Returns:
- true if auto error handling is enabled, false otherwise
- See also:
- setAutoErrorHandlingEnabled()
bool autoUpdate | ( | self ) |
Checks whether KDirWatch will automatically update directories. This is enabled by default.
- Returns:
- true if KDirWatch is used to automatically update directories.
canceled | ( | self ) |
Tell the view that the user canceled the listing. No running jobs are left.
- Signal syntax:
QObject.connect(source, SIGNAL("canceled()"), target_slot)
canceled | ( | self, | ||
KUrl | _url | |||
) |
Tell the view that the listing of the directory _url was canceled. There might be other running jobs left.
- Parameters:
-
_url the directory URL
- Signal syntax:
QObject.connect(source, SIGNAL("canceled(const KUrl&)"), target_slot)
clear | ( | self ) |
Signal to clear all items. It must always be connected to this signal to avoid doubled items!
- Signal syntax:
QObject.connect(source, SIGNAL("clear()"), target_slot)
clear | ( | self, | ||
KUrl | _url | |||
) |
Signal to empty the directory _url. It is only emitted if the lister is holding more than one directory.
- Parameters:
-
_url the directory that will be emptied
- Signal syntax:
QObject.connect(source, SIGNAL("clear(const KUrl&)"), target_slot)
clearMimeFilter | ( | self ) |
Clears the mime based filter.
- See also:
- setMimeFilter
completed | ( | self ) |
Tell the view that listing is finished. There are no jobs running anymore.
- Signal syntax:
QObject.connect(source, SIGNAL("completed()"), target_slot)
completed | ( | self, | ||
KUrl | _url | |||
) |
Tell the view that the listing of the directory _url is finished. There might be other running jobs left.
- Parameters:
-
_url the directory URL
- Signal syntax:
QObject.connect(source, SIGNAL("completed(const KUrl&)"), target_slot)
bool delayedMimeTypes | ( | self ) |
- Returns:
- true if the "delayed mimetypes" feature was enabled
- See also:
- setDelayedMimeTypes
deleteItem | ( | self, | ||
KFileItem | _fileItem | |||
) |
Signal an item to remove.
- Parameters:
-
_fileItem the fileItem to delete
- Signal syntax:
QObject.connect(source, SIGNAL("deleteItem(const KFileItem&)"), target_slot)
bool dirOnlyMode | ( | self ) |
Checks whether the KDirLister only lists directories or all files. By default this option is disabled (all files will be shown).
- Returns:
- true if setDirOnlyMode(true) was called
KUrl.List directories | ( | self ) |
Returns all URLs that are listed by this KDirLister. This is only useful if you called openUrl() with _keep == true, as it happens in a treeview, for example. (Note that the base url is included in the list as well, of course.)
- Returns:
- the list of all listed URLs
bool doMimeFilter | ( | self, | ||
QString | mime, | |||
QStringList | filters | |||
) |
Called by the public matchesMimeFilter() to do the actual filtering. Those methods may be reimplemented to customize filtering.
- Parameters:
-
mime the mime type to filter filters the list of mime types to filter
Called by the public matchesFilter() to do the actual filtering. Those methods may be reimplemented to customize filtering.
- Parameters:
-
name the name to filter filters a list of regular expressions for filtering
emitChanges | ( | self ) |
Actually emit the changes made with setShowingDotFiles, setDirOnlyMode, setNameFilter and setMimeFilter.
Find an item by its name.
- Parameters:
-
name the item name
- Returns:
- the KFileItem
Find an item by its URL.
- Parameters:
-
_url the item URL
- Returns:
- the KFileItem
handleError | ( | self, | ||
KIO.Job | a0 | |||
) |
Reimplement to customize error handling
infoMessage | ( | self, | ||
QString | msg | |||
) |
Emitted to display information about running jobs. Examples of message are "Resolving host", "Connecting to host...", etc.
- Parameters:
-
msg the info message
- Signal syntax:
QObject.connect(source, SIGNAL("infoMessage(const QString&)"), target_slot)
bool isFinished | ( | self ) |
Returns true if no io operation is currently in progress.
- Returns:
- true if finished, false otherwise
KFileItemList items | ( | self, | ||
KDirLister.WhichItems | which=KDirLister.FilteredItems | |||
) |
Returns the items listed for the current url(). This method will NOT start listing a directory, you should only call this when receiving the finished() signal.
The items in the KFileItemList are references to the items used by KDirLister, so e.g. an item gets destroyed when the deleteItem() signal is emitted.
- Parameters:
-
which specifies whether the returned list will contain all entries or only the ones that passed the nameFilter(), mimeFilter(), etc. Note that the latter causes iteration over all the items, filtering them. If this is too slow for you, use the newItems() signal, sending out filtered items in chunks.
- Returns:
- the items listed for the current url().
itemsFilteredByMime | ( | self, | ||
KFileItemList | items | |||
) |
Send a list of items filtered-out by mime-type.
- Parameters:
-
items the list of filtered items
- Signal syntax:
QObject.connect(source, SIGNAL("itemsFilteredByMime(const KFileItemList&)"), target_slot)
KFileItemList itemsForDir | ( | self, | ||
KUrl | dir, | |||
KDirLister.WhichItems | which=KDirLister.FilteredItems | |||
) |
Returns the items listed for the given dir. This method will NOT start listing dir, you should only call this when receiving the finished() signal.
The items in the KFileItemList are references to the items used by KDirLister, so e.g. an item gets destroyed when the deleteItem() signal is emitted.
- Parameters:
-
dir specifies the url for which the items should be returned. This is only useful if you use KDirLister with multiple URLs i.e. using bool keep = true in openUrl(). which specifies whether the returned list will contain all entries or only the ones that passed the nameFilter, mimeFilter, etc. Note that the latter causes iteration over all the items, filtering them. If this is too slow for you, use the newItems() signal, sending out filtered items in chunks.
- Returns:
- the items listed for dir.
QWidget mainWindow | ( | self ) |
Returns the main window associated with this object.
- Returns:
- the associated main window, or 0 if there is none
bool matchesFilter | ( | self, | ||
QString | name | |||
) |
Checks whether name matches a filter in the list of name filters.
- Returns:
- true if name matches a filter in the list, otherwise false.
- See also:
- setNameFilter
bool matchesFilter | ( | self, | ||
KFileItem | a0 | |||
) |
Called for every new item before emitting newItems(). You may reimplement this method in a subclass to implement your own filtering. The default implementation filters out ".." and everything not matching the name filter(s)
- Returns:
- true if the item is "ok". false if the item shall not be shown in a view, e.g. files not matching a pattern *.cpp ( KFileItem.isHidden())
- See also:
- matchesFilter
- See also:
- setNameFilter
bool matchesMimeFilter | ( | self, | ||
QString | mime | |||
) |
Checks whether mime matches a filter in the list of mime types
- Parameters:
-
mime the mimetype to find in the filter list.
- Returns:
- true if name matches a filter in the list, otherwise false.
- See also:
- setMimeFilter.
bool matchesMimeFilter | ( | self, | ||
KFileItem | a0 | |||
) |
Called for every new item before emitting newItems(). You may reimplement this method in a subclass to implement your own filtering. The default implementation filters out ".." and everything not matching the name filter(s)
- Returns:
- true if the item is "ok". false if the item shall not be shown in a view, e.g. files not matching a pattern *.cpp ( KFileItem.isHidden())
- See also:
- matchesMimeFilter
- See also:
- setMimeFilter
QStringList mimeFilters | ( | self ) |
Returns the list of mime based filters, as set via setMimeFilter().
- Returns:
- the list of mime based filters. Empty, when no mime filter is set.
QString nameFilter | ( | self ) |
Returns the current name filter, as set via setNameFilter()
- Returns:
- the current name filter, can be QString() if filtering is turned off
newItems | ( | self, | ||
KFileItemList | items | |||
) |
Signal new items.
So use this signal only if you want to modify original KFileItems
- Parameters:
-
items a list of new items
- Signal syntax:
QObject.connect(source, SIGNAL("newItems(const KFileItemList&)"), target_slot)
bool openUrl | ( | self, | ||
KUrl | _url, | |||
KDirLister.OpenUrlFlags | _flags=KDirLister.NoFlags | |||
) |
Run the directory lister on the given url.
This method causes KDirLister to emit _all_ the items of _url, in any case. Depending on _keep either clear() or clear(const KUrl &) will be emitted first.
The newItems() signal may be emitted more than once to supply you with KFileItems, up until the signal completed() is emitted (and isFinished() returns true).
- Parameters:
-
_url the directory URL. _flags whether to keep previous directories, and whether to reload, see OpenUrlFlags
- Returns:
- true if successful, false otherwise (e.g. invalid _url)
percent | ( | self, | ||
int | percent | |||
) |
Progress signal showing the overall progress of the KDirLister. This allows using a progress bar very easily. (see QProgressBar)
- Parameters:
-
percent the progress in percent
- Signal syntax:
QObject.connect(source, SIGNAL("percent(int)"), target_slot)
processedSize | ( | self, | ||
KIO.filesize_t | size | |||
) |
Regularly emitted to show the progress of this KDirLister.
- Parameters:
-
size the processed size in bytes
- Signal syntax:
QObject.connect(source, SIGNAL("processedSize(filesize_t)"), target_slot)
redirection | ( | self, | ||
KUrl | _url | |||
) |
Signal a redirection. Only emitted if there's just one directory to list, i.e. most probably openUrl() has been called with _keep == false.
- Parameters:
-
_url the new URL
- Signal syntax:
QObject.connect(source, SIGNAL("redirection(const KUrl&)"), target_slot)
Signal a redirection.
- Parameters:
-
oldUrl the original URL newUrl the new URL
- Signal syntax:
QObject.connect(source, SIGNAL("redirection(const KUrl&, const KUrl&)"), target_slot)
refreshItems | ( | self, | ||
[QPair |
items | |||
) |
Signal an item to refresh (its mimetype/icon/name has changed). Note: KFileItem.refresh has already been called on those items.
- Parameters:
-
items the items to refresh. This is a list of pairs, where the first item in the pair is the OLD item, and the second item is the NEW item. This allows to track which item has changed, especially after a renaming.
- Signal syntax:
QObject.connect(source, SIGNAL("refreshItems(const QList
>&)"), target_slot)
KFileItem rootItem | ( | self ) |
Returns the file item of the URL.
Can return an empty KFileItem.
- Returns:
- the file item for url() itself (".")
setAutoErrorHandlingEnabled | ( | self, | ||
bool | enable, | |||
QWidget | parent | |||
) |
Enable or disable auto error handling is enabled. If enabled, it will show an error dialog to the user when an error occurs. It is turned on by default.
- Parameters:
-
enable true to enable auto error handling, false to disable parent the parent widget for the error dialogs, can be 0 for top-level
- See also:
- autoErrorHandlingEnabled()
setAutoUpdate | ( | self, | ||
bool | enable | |||
) |
Enable/disable automatic directory updating, when a directory changes (using KDirWatch).
- Parameters:
-
enable true to enable, false to disable
setDelayedMimeTypes | ( | self, | ||
bool | delayedMimeTypes | |||
) |
Delayed mimetypes feature: If enabled, mime types will be fetched on demand, which leads to a faster initial directory listing, where icons get progressively replaced with the correct one while KMimeTypeResolver is going through the items with unknown or imprecise mimetype (e.g. files with no extension or an unknown extension).
setDirOnlyMode | ( | self, | ||
bool | dirsOnly | |||
) |
Call this to list only directories. By default this option is disabled (all files will be shown).
- Parameters:
-
dirsOnly true to list only directories
setMainWindow | ( | self, | ||
QWidget | window | |||
) |
Pass the main window this object is associated with this is used for caching authentication data
- Parameters:
-
window the window to associate with, 0 to disassociate
setMimeExcludeFilter | ( | self, | ||
QStringList | mimeList | |||
) |
Filtering should be done with KFileFilter. This will be implemented in a later revision of KDirLister. This method may be removed then.
Set mime-based exclude filter to only list items not matching the given mimetypes
NOTE: setting the filter does not automatically reload directory. Also calling this function will not affect any named filter already set.
- Parameters:
-
mimeList a list of mime-types.
- See also:
- clearMimeFilter
- See also:
- matchesMimeFilter
- Internal:
setMimeFilter | ( | self, | ||
QStringList | mimeList | |||
) |
Set mime-based filter to only list items matching the given mimetypes.
NOTE: setting the filter does not automatically reload directory. Also calling this function will not affect any named filter already set.
- Parameters:
-
mimeList a list of mime-types.
- See also:
- clearMimeFilter
- See also:
- matchesMimeFilter
setNameFilter | ( | self, | ||
QString | filter | |||
) |
Set a name filter to only list items matching this name, e.g. "*.cpp".
You can set more than one filter by separating them with whitespace, e.g "*.cpp *.h". Note: the directory is not automatically reloaded.
- Parameters:
-
filter the new filter, QString() to disable filtering
- See also:
- matchesFilter
setShowingDotFiles | ( | self, | ||
bool | _showDotFiles | |||
) |
Changes the "is viewing dot files" setting. Calls updateDirectory() if setting changed. By default this option is disabled (hidden files will not be shown).
- Parameters:
-
_showDotFiles true to enable showing hidden files, false to disable
- See also:
- showingDotFiles()
bool showingDotFiles | ( | self ) |
Checks whether hidden files (files beginning with a dot) will be shown. By default this option is disabled (hidden files will be not shown).
- Returns:
- true if dot files are shown, false otherwise
- See also:
- setShowingDotFiles()
speed | ( | self, | ||
int | bytes_per_second | |||
) |
Emitted to display information about the speed of the jobs.
- Parameters:
-
bytes_per_second the speed in bytes/s
- Signal syntax:
QObject.connect(source, SIGNAL("speed(int)"), target_slot)
started | ( | self, | ||
KUrl | _url | |||
) |
Tell the view that we started to list _url. NOTE: this does _not_ imply that there is really a job running! I.e. KDirLister.jobs() may return an empty list. In this case the items are taken from the cache.
The view knows that openUrl should start it, so it might seem useless, but the view also needs to know when an automatic update happens.
- Parameters:
-
_url the URL to list
- Signal syntax:
QObject.connect(source, SIGNAL("started(const KUrl&)"), target_slot)
stop | ( | self ) |
Stop listing all directories currently being listed.
Emits canceled() if there was at least one job running. Emits canceled( const KUrl& ) for each stopped job if there are at least two dirctories being watched by KDirLister.
stop | ( | self, | ||
KUrl | _url | |||
) |
Stop listing the given directory.
Emits canceled() if the killed job was the last running one. Emits canceled( const KUrl& ) for the killed job if there are at least two directories being watched by KDirLister. No signal is emitted if there was no job running for _url.
- Parameters:
-
_url the directory URL
totalSize | ( | self, | ||
KIO.filesize_t | size | |||
) |
Emitted when we know the size of the jobs.
- Parameters:
-
size the total size in bytes
- Signal syntax:
QObject.connect(source, SIGNAL("totalSize(filesize_t)"), target_slot)
updateDirectory | ( | self, | ||
KUrl | _dir | |||
) |
Update the directory _dir. This method causes KDirLister to _only_ emit the items of _dir that actually changed compared to the current state in the cache and updates the cache.
The current implementation calls updateDirectory automatically for local files, using KDirWatch (if autoUpdate() is true), but it might be useful to force an update manually.
- Parameters:
-
_dir the directory URL
KUrl url | ( | self ) |
Returns the top level URL that is listed by this KDirLister. It might be different from the one given with openUrl() if there was a redirection. If you called openUrl() with _keep == true this is the first url opened (e.g. in a treeview this is the root).
- Returns:
- the url used by this instance to list the files.
Enumeration Documentation
Changes |
- Enumerator:
-
NONE = 0 NAME_FILTER = 1 MIME_FILTER = 2 DOT_FILES = 4 DIR_ONLY_MODE = 8
OpenUrlFlag |
- Note:
- It is necessary to wrap members of this enumeration in a
OpenUrlFlags
instance when passing them to a method as group of flags. For example:OpenUrlFlags( NoFlags | Keep)
- Enumerator:
-
NoFlags = 0x0 Keep = 0x1 Reload = 0x2
WhichItems |
Used by items() and itemsForDir() to specify whether you want all items for a directory or just the filtered ones.
- Enumerator:
-
AllItems = 0 FilteredItems = 1