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diff --git a/portland/libxdg-vfs/libxdg-vfs-client/doc/libxdg-vfs.html b/portland/libxdg-vfs/libxdg-vfs-client/doc/libxdg-vfs.html deleted file mode 100644 index c858b6c..0000000 --- a/portland/libxdg-vfs/libxdg-vfs-client/doc/libxdg-vfs.html +++ /dev/null @@ -1,208 +0,0 @@ -<html> - <head> - <title>libxdg-vfs</title> - </head> - <body> - <h1>libxdg-vfs</h1> - <p><em>libxdg-vfs</em> provides a generic API to the Virtual-File-System libraries KIO and Gnome-VFS. - It supports the commands - <ul> - <li><em>backend</em> (obtain backend information)</li> - <li><em>get</em> (read file)</li> - <li><em>put</em> (write file)</li> - <li><em>cp</em> (copy file)</li> - <li><em>mv</em> (move file)</li> - <li><em>rm</em> (erase file)</li> - <li><em>mkdir</em> (create folder)</li> - <li><em>rmdir</em> (delete folder)</li> - <li><em>info</em> (get file-info)</li> - <li><em>setattrs</em> (set file attributes)</li> - <li><em>ls</em> (list directory)</li> - <li><em>openfildlg</em> (show open-file-dialog)</li> - <li><em>savefildlg</em> (show save-file-dialog)</li> - </ul> - </p> - <p>It is designed to work in synchronous as well as asynchronous context.</p> - <h2>Backends</h2> - <p>The backend executables (xdg_vfs_kde or xdg_vfs_gnome) are forked as child process and - the communication goes through the stdin/stdout pipes of the child-process (the <em>shell</em>-mode of the backend executables is used). The backends are in the separate packages xdg-vfs-kde.tar.gz and xdg-vfs-gnome.tar.gz.</p> - <h2>Sessions</h2> - <p>To open a session call the function:</p> -<code> -XdgVfsResult xdg_vfs_sess_start(XdgVfsSession ** session, char * preferredDesktop); -</code> - <p>The library will launch the child-process and return a session pointer. Use "this" (or NULL) - to - autodetect the current desktop - or "kde" / "gnome" for the <em>preferredDesktop</em> argument. - </p> - <h2>Running Commands</h2> - <p>A session can run a sequence of VFS commands. Because the backends are single-threaded and synchronous - you can only run one command after the other in a session (for parallel commands open a second session). - Here are some examples: - </p> - <h3>Copying a file</h3> - <p>Let's see how a copying a file is done:</p> -<code> -XdgVfsResult r = xdg_vfs_sess_cmd_copyFile(session, "protocol://user@server/srcfile", "protocol://user@server/targetfile"); -</code> - <p>After calling this function you have to read the response items until you get a return value different from - XDGVFS_RESULT_CONTINUES. Internally the 'readItem' function has only a single 'read(incoming_fd)' call per - iteration. This is to prevent blocking in an async application - (you have to watch for read-events on the fd returned by xdg_vfs_sess_getIncomingFiledescriptor()) - </p> -<pre> -XdgVfsResult r; -XdgVfsItemType type; -XdgVfsItem * item; - -while ((r = xdg_vfs_sess_readItem(session, &type, &item, NULL, NULL)) == XDGVFS_RESULT_CONTINUES) -{ - switch (type) - { - case XDGVFS_ITEMTYPE_COPY_HEAD: - { - XdgVfsCopyHead * head = (XdgVfsCopyHead*) item; - fprintf(stderr, "copying uri_src='%s' to uri_target='%s'\n", - head->uri_src, head->uri_target); - break; - } - case XDGVFS_ITEMTYPE_PROGRESS: - { - XdgVfsProgress * progress = (XdgVfsProgress *) item; - fprintf(stderr, "progress: copied=%d size=%d\n", progress->copied, progress->size); - break; - } - case XDGVFS_ITEMTYPE_NONE: - { - break; /* no complete item -> continue */ - } - default: - { - fprintf(stderr, "unexpected item - type=%d\n", type); - break; - } - } - xdg_vfs_item_unref(item); -} -if (r) { /* command failed */ } -</pre> - <h3>Reading a file</h3> - <p>When reading a file you will receive information items and data chunks.</p> -<pre> -XdgVfsResult r; -r = xdg_vfs_sess_cmd_getFile(session, "protocol://user@server/file"); -if (r) { /* command init error */ } - -char * buf=NULL; -int len=0; -XdgVfsItemType type; -XdgVfsItem * item; - -while ((r = xdg_vfs_sess_readItem(session, &type, &item, &buf, &len)) == XDGVFS_RESULT_CONTINUES) -{ - switch (type) - { - case XDGVFS_ITEMTYPE_GET_HEAD: - { - XdgVfsSimpleHead * head = (XdgVfsSimpleHead*) item; - fprintf(stderr, "reading file uri='%s'\n", head->uri); - break; - } - case XDGVFS_DATAIN: - { - fprintf(stderr, "file-data chunklen=%d\n", len); - fwrite (buf, 1, len, stdout); /* your file data */ - break; - } - case XDGVFS_ITEMTYPE_DATAIN_DONE: - { - XdgVfsDataInDoneItem * dii = (XdgVfsDataInDoneItem *) item; - fprintf(stderr, "read done - bytecount='%d'\n", dii->bytecount); - break; - } - case XDGVFS_ITEMTYPE_NONE: - { - break; - } - default: - { - fprintf(stderr, "unexpected item - type=%d\n", type); - break; - } - } - xdg_vfs_item_unref(item); -} -if (r) { /* command failed */ } -</pre> - <h3>Opening a file-dialog</h3> -<pre> -XdgVfsResult r; -r = xdg_vfs_sess_cmd_openFileDialog(session, "protocol://user@server/directory", 0); -if (r) { /* command init error */ } - -while ((r = xdg_vfs_sess_readItem(session, &type, &item, NULL, NULL)) == XDGVFS_RESULT_CONTINUES) -{ - switch(type) - { - case XDGVFS_ITEMTYPE_OPENFILEDLG_RESPONSE: - { - XdgVfsOpenFileDlgResponse * dlgResp = (XdgVfsOpenFileDlgResponse*) item; - fprintf(stderr, "selected_uri='%s'\n", dlgResp->selected_uri); - break; - } - case XDGVFS_ITEMTYPE_NONE: - { - break; - } - default: - { - fprintf(stderr, "unexpected item - type=%d\n", type); - break; - } - } - xdg_vfs_item_unref(item); -} -if (r) { /* command failed */ } -</pre> -<h3>Other Commands</h3> -<p>For the other commands see the samples in the 'tests' directory of the tarball. -Also have a look at <em>xdg_vfs_client.h</em> and <em>xdg_vfs_common.h</em> (list of result codes). -<h2>Async Applications</h2> -<p>Check the filedescriptor of the sessions incoming pipe in your event loop before calling</p> -<code> -XdgVfsResult xdg_vfs_sess_readItem(XdgVfsSession * sess, XdgVfsItemType * typeOut, - XdgVfsItem ** itemOut, char ** buffer, int * len); -</code> -<p>and the outgoing pipes filedescriptor before calling</p> -<code> -XdgVfsResult xdg_vfs_sess_sendData(XdgVfsSession * sess); -</code> -<p>(only required when writing a file).</p> -<h2>VFS browser demo</h2> -<p>Libxdg-vfs-demo-filebrowser is a simple file-system-browser (written in Gtk+) which uses libxdg-vfs. -I'm trying to find out whether libxdg-vfs could be used as backend for file-choosers (like GtkFileChooser) - especially in cases -where you need to customize file-dialogs and the simple Open/Save file-dialogs provided by libxdg-vfs won't -suffice.</p> -<p><em>Root URI of the VFS-backend:</em></p> -<p><code>XdgVfsBackendInfo</code> has a field called <code>system_uri</code> -which points to the virtual root folder (often listed in side-panes of file-dialogs) of the VFS backend. -Like <em>system:/</em> on KDE or <em>computer://</em> on Gnome. -</p> -<p><em>Icons and Icon-themes:</em></p> -<p><code>XdgVfsBackendInfo</code> has a field called <code>file_icon_theme</code> (which is 'crystalsvg' on KDE and 'gnome' on Gnome). -The <code>XdgVfsFileInfo</code> structure (returned when listing directories) has an <code>iconname</code> field. -With this information we can look up the right file-icons, without even knowing which backend is running. -</p> -<p>Screenshot: VFS browser using KIO and Gnome-VFS backend (pointing to root folder of the VFS):</p> -<p><img src="imgs/libxdg-vfs-demo-filebrowser-root.png"></p> -<p>Screenshot: VFS browser using the Gnome-VFS backend:</p> -<p><img src="imgs/libxdg-vfs-demo-filebrowser-gnome.png"></p> -<p>Screenshot: VFS browser using the KIO backend:</p> -<p><img src="imgs/libxdg-vfs-demo-filebrowser-kde.png"></p> - -<h2>Sources/Docs</h2> -<p>Sources (CVS): <a href="http://webcvs.freedesktop.org/portland/portland/libxdg-vfs/">http://webcvs.freedesktop.org/portland/portland/libxdg-vfs/</a></p> -<p>Backend manual: <a href="http://www.scheinwelt.at/~norbertf/dadapt/files/xdg_utils/doc/xdg-vfs.html">http://www.scheinwelt.at/~norbertf/dadapt/files/xdg_utils/doc/xdg-vfs.html</a></p> -<p>Portland VFS task: <a href="http://portland.freedesktop.org/wiki/TaskVFS">http://portland.freedesktop.org/wiki/TaskVFS</a></p> -<p>___ n.f. 2006 ___</p> - </body> -</html> |