Playing checkbox in Disobedience choose tab is now only visible for

[disorder] / disobedience / choose-menu.c

/*
 * This file is part of DisOrder
 * Copyright (C) 2008 Richard Kettlewell
 *
 * 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 "disobedience.h"
#include "popup.h"
#include "choose.h"

VECTOR_TYPE(cdvector, struct choosedata *, xrealloc);

/** @brief Popup menu */
static GtkWidget *choose_menu;

/** @brief Callback for choose_get_selected() */
static void choose_gather_selected_callback(GtkTreeModel attribute((unused)) *model,
                                            GtkTreePath attribute((unused)) *path,
                                            GtkTreeIter *iter,
                                            gpointer data) {
  struct cdvector *v = data;
  struct choosedata *cd = choose_iter_to_data(iter);

  if(cd)
    cdvector_append(v, cd);
}

/** @brief Get a list of all selected tracks and directories */
static struct choosedata **choose_get_selected(int *nselected) {
  struct cdvector v[1];

  cdvector_init(v);
  gtk_tree_selection_selected_foreach(choose_selection,
                                      choose_gather_selected_callback,
                                      v);
  cdvector_terminate(v);
  if(nselected)
    *nselected = v->nvec;
  return v->vec;
}

/** @brief Recursion step for choose_get_visible()
 * @param parent A visible node, or NULL for the root
 * @param cdv Visible nodes accumulated here
 */
static void choose_visible_recurse(GtkTreeIter *parent,
                                   void (*callback)(GtkTreeIter *it,
                                                    struct choosedata *cd,
                                                    void *userdata),
                                   void *userdata) {
  struct choosedata *cd;
  int expanded;
  if(parent) {
    cd = choose_iter_to_data(parent);
    callback(parent, cd, userdata);
    if(cd->type != CHOOSE_DIRECTORY)
      /* Only directories can be expanded so we can avoid the more
       * expensive test below */
      return;
    GtkTreePath *parent_path
      = gtk_tree_model_get_path(GTK_TREE_MODEL(choose_store),
                                parent);
    expanded = gtk_tree_view_row_expanded(GTK_TREE_VIEW(choose_view),
                                          parent_path);
    gtk_tree_path_free(parent_path);
  } else
    expanded = 1;
  /* See if parent is expanded */
  if(expanded) {
    /* Parent is expanded, visit all its children */
    GtkTreeIter it[1];
    gboolean itv = gtk_tree_model_iter_children(GTK_TREE_MODEL(choose_store),
                                                it,
                                                parent);
    while(itv) {
      choose_visible_recurse(it, callback, userdata);
      itv = gtk_tree_model_iter_next(GTK_TREE_MODEL(choose_store), it);
    }
  }
}

static void choose_visible_visit(void (*callback)(GtkTreeIter *it,
                                                  struct choosedata *cd,
                                                  void *userdata),
                                 void *userdata) {
  choose_visible_recurse(NULL, callback, userdata);
}

static void count_choosedatas(struct choosedata **cds,
                              int counts[2]) {
  struct choosedata *cd;
  counts[CHOOSE_FILE] = counts[CHOOSE_DIRECTORY] = 0;
  while((cd = *cds++))
    ++counts[cd->type];
}


static void choose_selectall_sensitive_callback
    (GtkTreeIter attribute((unused)) *it,
     struct choosedata *cd,
     void *userdata) {
  if(cd->type == CHOOSE_FILE)
    ++*(int *)userdata;
}

static int choose_selectall_sensitive(void attribute((unused)) *extra) {
  int files = 0;
  choose_visible_visit(choose_selectall_sensitive_callback, &files);
  return files > 0;
}

static void choose_selectall_activate_callback
    (GtkTreeIter *it,
     struct choosedata *cd,
     void attribute((unused)) *userdata) {
  if(cd->type == CHOOSE_FILE)
    gtk_tree_selection_select_iter(choose_selection, it);
  else
    gtk_tree_selection_unselect_iter(choose_selection, it);
}

static void choose_selectall_activate(GtkMenuItem attribute((unused)) *item,
                                      gpointer attribute((unused)) userdata) {
  choose_visible_visit(choose_selectall_activate_callback, 0);
}
  
static int choose_selectnone_sensitive(void attribute((unused)) *extra) {
  return gtk_tree_selection_count_selected_rows(choose_selection) > 0;
}
  
static void choose_selectnone_activate(GtkMenuItem attribute((unused)) *item,
                                       gpointer attribute((unused)) userdata) {
  gtk_tree_selection_unselect_all(choose_selection);
}
  
static int choose_play_sensitive(void attribute((unused)) *extra) {
  int counts[2];
  count_choosedatas(choose_get_selected(NULL), counts);
  return !counts[CHOOSE_DIRECTORY] && counts[CHOOSE_FILE];
}
  
static void choose_play_activate(GtkMenuItem attribute((unused)) *item,
                                 gpointer attribute((unused)) userdata) {
  struct choosedata *cd, **cdp = choose_get_selected(NULL);
  while((cd = *cdp++)) {
    if(cd->type == CHOOSE_FILE)
      disorder_eclient_play(client, xstrdup(cd->track),
                            choose_play_completed, 0);
  }
}
  
static int choose_properties_sensitive(void *extra) {
  return choose_play_sensitive(extra);
}
  
static void choose_properties_activate(GtkMenuItem attribute((unused)) *item,
                                       gpointer attribute((unused)) userdata) {
  struct choosedata *cd, **cdp = choose_get_selected(NULL);
  struct vector v[1];
  vector_init(v);
  while((cd = *cdp++))
    vector_append(v, xstrdup(cd->track));
  properties(v->nvec, (const char **)v->vec);
}

/** @brief Pop-up menu for choose */
static struct menuitem choose_menuitems[] = {
  {
    "Play track",
    choose_play_activate,
    choose_play_sensitive,
    0,
    0
  },
  {
    "Track properties",
    choose_properties_activate,
    choose_properties_sensitive,
    0,
    0
  },
  {
    "Select all tracks",
    choose_selectall_activate,
    choose_selectall_sensitive,
    0,
    0
  },
  {
    "Deselect all tracks",
    choose_selectnone_activate,
    choose_selectnone_sensitive,
    0,
    0
  },
};

const struct tabtype choose_tabtype = {
  choose_properties_sensitive,
  choose_selectall_sensitive,
  choose_selectnone_sensitive,
  choose_properties_activate,
  choose_selectall_activate,
  choose_selectnone_activate,
  0,
  0
};

/** @brief Called when a mouse button is pressed or released */
gboolean choose_button_event(GtkWidget attribute((unused)) *widget,
                             GdkEventButton *event,
                             gpointer attribute((unused)) user_data) {
  if(event->type == GDK_BUTTON_RELEASE && event->button == 2) {
    /* Middle click release - play track */
    ensure_selected(GTK_TREE_VIEW(choose_view), event);
    choose_play_activate(NULL, NULL);
  } else if(event->type == GDK_BUTTON_PRESS && event->button == 3) {
    /* Right click press - pop up the menu */
    ensure_selected(GTK_TREE_VIEW(choose_view), event);
    popup(&choose_menu, event,
          choose_menuitems, sizeof choose_menuitems / sizeof *choose_menuitems,
          0);
    return TRUE;
  }
  return FALSE;
}

/*
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*/