screen_browser: moved code to screen_browser.c

Isolate the generic browser code from the directory browser.

1 files changed, 474 insertions, 0 deletions

diff --git a/src/screen_browser.c b/src/screen_browser.c
new file mode 100644
index 000000000..737b13875
--- /dev/null
+++ b/src/screen_browser.c
@@ -0,0 +1,474 @@
+/*
+ * $Id$
+ *
+ * (c) 2004 by Kalle Wallin <kaw@linux.se>
+ * Copyright (C) 2008 Max Kellermann <max@duempel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "screen_browser.h"
+#include "ncmpc.h"
+#include "options.h"
+#include "support.h"
+#include "strfsong.h"
+#include "screen_utils.h"
+#include "gcc.h"
+
+#include <string.h>
+
+#define USE_OLD_LAYOUT
+#undef  USE_OLD_ADD
+
+#define BUFSIZE 1024
+
+#define HIGHLIGHT  (0x01)
+
+/* clear the highlight flag for all items in the filelist */
+void
+clear_highlights(mpdclient_filelist_t *fl)
+{
+	GList *list = g_list_first(fl->list);
+
+	while( list ) {
+		filelist_entry_t *entry = list->data;
+
+		entry->flags &= ~HIGHLIGHT;
+		list = list->next;
+	}
+}
+
+/* change the highlight flag for a song */
+void
+set_highlight(mpdclient_filelist_t *fl, mpd_Song *song, int highlight)
+{
+	GList *list = g_list_first(fl->list);
+
+	if( !song )
+		return;
+
+	while( list ) {
+		filelist_entry_t *entry = list->data;
+		mpd_InfoEntity *entity  = entry->entity;
+
+		if( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
+			mpd_Song *song2 = entity->info.song;
+
+			if( strcmp(song->file, song2->file) == 0 ) {
+				if(highlight)
+					entry->flags |= HIGHLIGHT;
+				else
+					entry->flags &= ~HIGHLIGHT;
+			}
+		}
+		list = list->next;
+	}
+}
+
+/* sync highlight flags with playlist */
+void
+sync_highlights(mpdclient_t *c, mpdclient_filelist_t *fl)
+{
+	GList *list = g_list_first(fl->list);
+
+	while(list) {
+		filelist_entry_t *entry = list->data;
+		mpd_InfoEntity *entity = entry->entity;
+
+		if( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
+			mpd_Song *song = entity->info.song;
+
+			if( playlist_get_index_from_file(c, song->file) >= 0 )
+				entry->flags |= HIGHLIGHT;
+			else
+				entry->flags &= ~HIGHLIGHT;
+		}
+		list=list->next;
+	}
+}
+
+/* list_window callback */
+const char *
+browser_lw_callback(unsigned idx, int *highlight, void *data)
+{
+	static char buf[BUFSIZE];
+	mpdclient_filelist_t *fl = (mpdclient_filelist_t *) data;
+	filelist_entry_t *entry;
+	mpd_InfoEntity *entity;
+
+	if( (entry=(filelist_entry_t *)g_list_nth_data(fl->list,idx))==NULL )
+		return NULL;
+
+	entity = entry->entity;
+	*highlight = (entry->flags & HIGHLIGHT);
+
+	if( entity == NULL )
+		return "[..]";
+
+	if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
+		mpd_Directory *dir = entity->info.directory;
+		char *directory = utf8_to_locale(basename(dir->path));
+
+		g_snprintf(buf, BUFSIZE, "[%s]", directory);
+		g_free(directory);
+		return buf;
+	} else if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
+		mpd_Song *song = entity->info.song;
+
+		strfsong(buf, BUFSIZE, LIST_FORMAT, song);
+		return buf;
+	} else if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
+		mpd_PlaylistFile *plf = entity->info.playlistFile;
+		char *filename = utf8_to_locale(basename(plf->path));
+
+#ifdef USE_OLD_LAYOUT
+		g_snprintf(buf, BUFSIZE, "*%s*", filename);
+#else
+		g_snprintf(buf, BUFSIZE, "<Playlist> %s", filename);
+#endif
+		g_free(filename);
+		return buf;
+	}
+
+	return "Error: Unknown entry!";
+}
+
+/* chdir */
+int
+browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
+			 filelist_entry_t *entry, const char *new_path)
+{
+	mpd_InfoEntity *entity = NULL;
+	gchar *path = NULL;
+
+	if( entry!=NULL )
+		entity = entry->entity;
+	else if( new_path==NULL )
+		return -1;
+
+	if( entity==NULL ) {
+		if( entry || 0==strcmp(new_path, "..") ) {
+			/* return to parent */
+			char *parent = g_path_get_dirname(browser->filelist->path);
+			if( strcmp(parent, ".") == 0 )
+				parent[0] = '\0';
+			path = g_strdup(parent);
+			list_window_reset(browser->lw);
+			/* restore previous list window state */
+			list_window_pop_state(browser->lw_state, browser->lw);
+		} else {
+			/* entry==NULL, then new_path ("" is root) */
+			path = g_strdup(new_path);
+			list_window_reset(browser->lw);
+			/* restore first list window state (pop while returning true) */
+			while(list_window_pop_state(browser->lw_state, browser->lw));
+		}
+	} else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
+		/* enter sub */
+		mpd_Directory *dir = entity->info.directory;
+		path = utf8_to_locale(dir->path);
+		/* save current list window state */
+		list_window_push_state(browser->lw_state, browser->lw);
+	} else
+		return -1;
+
+	mpdclient_filelist_free(browser->filelist);
+	browser->filelist = mpdclient_filelist_get(c, path);
+	sync_highlights(c, browser->filelist);
+	list_window_check_selected(browser->lw, browser->filelist->length);
+	g_free(path);
+	return 0;
+}
+
+static int
+load_playlist(mpdclient_t *c, filelist_entry_t *entry)
+{
+	mpd_InfoEntity *entity = entry->entity;
+	mpd_PlaylistFile *plf = entity->info.playlistFile;
+	char *filename = utf8_to_locale(plf->path);
+
+	if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
+		screen_status_printf(_("Loading playlist %s..."), basename(filename));
+	g_free(filename);
+	return 0;
+}
+
+static int
+enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
+{
+	int idx;
+	mpd_InfoEntity *entity = entry->entity;
+	mpd_Song *song = entity->info.song;
+
+	if (!(entry->flags & HIGHLIGHT)) {
+		if (mpdclient_cmd_add(c, song) == 0) {
+			char buf[BUFSIZE];
+
+			entry->flags |= HIGHLIGHT;
+			strfsong(buf, BUFSIZE, LIST_FORMAT, song);
+			screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
+			mpdclient_update(c); /* get song id */
+		} else
+			return -1;
+	}
+
+	idx = playlist_get_index_from_file(c, song->file);
+	mpdclient_cmd_play(c, idx);
+	return 0;
+}
+
+int
+browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
+{
+	filelist_entry_t *entry;
+	mpd_InfoEntity *entity;
+
+	if (browser->filelist == NULL)
+		return -1;
+	entry = (filelist_entry_t *) g_list_nth_data(browser->filelist->list,
+						     browser->lw->selected);
+	if( entry==NULL )
+		return -1;
+
+	entity = entry->entity;
+	if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
+		return browser_change_directory(browser, c, entry, NULL);
+	else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
+		return load_playlist(c, entry);
+	else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
+		return enqueue_and_play(c, entry);
+	return -1;
+}
+
+
+#ifdef USE_OLD_ADD
+/* NOTE - The add_directory functions should move to mpdclient.c */
+extern gint mpdclient_finish_command(mpdclient_t *c);
+
+static int
+add_directory(mpdclient_t *c, char *dir)
+{
+	mpd_InfoEntity *entity;
+	GList *subdir_list = NULL;
+	GList *list = NULL;
+	char *dirname;
+
+	dirname = utf8_to_locale(dir);
+	screen_status_printf(_("Adding directory %s...\n"), dirname);
+	doupdate();
+	g_free(dirname);
+	dirname = NULL;
+
+	mpd_sendLsInfoCommand(c->connection, dir);
+	mpd_sendCommandListBegin(c->connection);
+	while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
+		if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
+			mpd_Song *song = entity->info.song;
+			mpd_sendAddCommand(c->connection, song->file);
+			mpd_freeInfoEntity(entity);
+		} else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
+			subdir_list = g_list_append(subdir_list, (gpointer) entity);
+		} else
+			mpd_freeInfoEntity(entity);
+	}
+	mpd_sendCommandListEnd(c->connection);
+	mpdclient_finish_command(c);
+	c->need_update = TRUE;
+
+	list = g_list_first(subdir_list);
+	while( list!=NULL ) {
+		mpd_Directory *dir;
+
+		entity = list->data;
+		dir = entity->info.directory;
+		add_directory(c, dir->path);
+		mpd_freeInfoEntity(entity);
+		list->data=NULL;
+		list=list->next;
+	}
+	g_list_free(subdir_list);
+	return 0;
+}
+#endif
+
+int
+browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
+{
+	filelist_entry_t *entry;
+
+	if (browser->filelist == NULL)
+		return -1;
+	entry = g_list_nth_data(browser->filelist->list, browser->lw->selected);
+	if (entry == NULL || entry->entity == NULL)
+		return -1;
+
+	if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
+		return load_playlist(c, entry);
+
+	if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
+		mpd_Directory *dir = entry->entity->info.directory;
+#ifdef USE_OLD_ADD
+		add_directory(c, tmp);
+#else
+		if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
+			char *tmp = utf8_to_locale(dir->path);
+
+			screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
+			g_free(tmp);
+		}
+#endif
+		return 0;
+	}
+
+	if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
+		return -1;
+
+	if (entry->flags & HIGHLIGHT)
+		entry->flags &= ~HIGHLIGHT;
+	else
+		entry->flags |= HIGHLIGHT;
+
+	if (entry->flags & HIGHLIGHT) {
+		if (entry->entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
+			mpd_Song *song = entry->entity->info.song;
+
+			if (mpdclient_cmd_add(c, song) == 0) {
+				char buf[BUFSIZE];
+
+				strfsong(buf, BUFSIZE, LIST_FORMAT, song);
+				screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
+			}
+		}
+	} else {
+		/* remove song from playlist */
+		if (entry->entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
+			mpd_Song *song = entry->entity->info.song;
+
+			if (song) {
+				int idx;
+
+				while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
+					mpdclient_cmd_delete(c, idx);
+			}
+		}
+	}
+
+	return 0;
+}
+
+int
+browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
+{
+	filelist_entry_t *entry;
+	GList *temp = browser->filelist->list;
+
+	if (browser->filelist == NULL)
+		return -1;
+
+	for (browser->filelist->list = g_list_first(browser->filelist->list);
+	     browser->filelist->list;
+	     browser->filelist->list = g_list_next(browser->filelist->list)) {
+		entry = browser->filelist->list->data;
+		if (entry == NULL || entry->entity == NULL)
+			return -1;
+
+		if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
+			load_playlist(c, entry);
+
+		if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
+			mpd_Directory *dir = entry->entity->info.directory;
+#ifdef USE_OLD_ADD
+			add_directory(c, tmp);
+#else
+			if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
+				char *tmp = utf8_to_locale(dir->path);
+
+				screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
+				g_free(tmp);
+			}
+#endif
+		}
+
+		if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
+			continue;
+
+		entry->flags |= HIGHLIGHT;
+
+		if (entry->flags & HIGHLIGHT) {
+			if (entry->entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
+				mpd_Song *song = entry->entity->info.song;
+
+				if (mpdclient_cmd_add(c, song) == 0) {
+					char buf[BUFSIZE];
+
+					strfsong(buf, BUFSIZE, LIST_FORMAT, song);
+					screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
+				}
+			}
+		}
+		/*
+		else {
+			//remove song from playlist
+			if( entry->entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
+				mpd_Song *song = entry->entity->info.song;
+
+				if( song ) {
+					int idx = playlist_get_index_from_file(c, song->file);
+
+					while( (idx=playlist_get_index_from_file(c, song->file))>=0 )
+						mpdclient_cmd_delete(c, idx);
+				}
+			}
+		}
+		*/
+		return 0;
+	}
+
+	browser->filelist->list = temp;
+	return 0;
+}
+
+#ifdef HAVE_GETMOUSE
+int
+browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
+{
+	int row;
+	unsigned prev_selected = browser->lw->selected;
+	unsigned long bstate;
+	int length;
+
+	if (browser->filelist)
+		length = browser->filelist->length;
+	else
+		length = 0;
+
+	if( screen_get_mouse_event(c, browser->lw, length, &bstate, &row) )
+		return 1;
+
+	browser->lw->selected = browser->lw->start + row;
+	list_window_check_selected(browser->lw, length);
+
+	if( bstate & BUTTON1_CLICKED ) {
+		if (prev_selected == browser->lw->selected)
+			browser_handle_enter(browser, c);
+	} else if (bstate & BUTTON3_CLICKED) {
+		if (prev_selected == browser->lw->selected)
+			browser_handle_select(browser, c);
+	}
+
+	return 1;
+}
+#endif
+