Split out UI functions for todo items

* Move todo-related UI functions from "interaction.c" to a new
  compilation unit "ui-todo.c".

* Rename all todo-related UI functions to todo_ui_*().

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

1 files changed, 140 insertions, 0 deletions

diff --git a/src/ui-todo.c b/src/ui-todo.c
new file mode 100644
index 0000000..d8f659c
--- /dev/null
+++ b/src/ui-todo.c
@@ -0,0 +1,140 @@
+/*
+ * Calcurse - text-based organizer
+ *
+ * Copyright (c) 2004-2013 calcurse Development Team <misc@calcurse.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the
+ *        following disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the
+ *        following disclaimer in the documentation and/or other
+ *        materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Send your feedback or comments to : misc@calcurse.org
+ * Calcurse home page : http://calcurse.org
+ *
+ */
+
+#include "calcurse.h"
+
+/* Request user to enter a new todo item. */
+void ui_todo_add(void)
+{
+  int ch = 0;
+  const char *mesg = _("Enter the new ToDo item : ");
+  const char *mesg_id =
+      _("Enter the ToDo priority [1 (highest) - 9 (lowest)] :");
+  char todo_input[BUFSIZ] = "";
+
+  status_mesg(mesg, "");
+  if (getstring(win[STA].p, todo_input, BUFSIZ, 0, 1) == GETSTRING_VALID) {
+    while ((ch < '1') || (ch > '9')) {
+      status_mesg(mesg_id, "");
+      ch = wgetch(win[KEY].p);
+    }
+    todo_add(todo_input, ch - '0', NULL);
+    todo_set_nb(todo_nb() + 1);
+  }
+}
+
+/* Delete an item from the ToDo list. */
+void ui_todo_delete(void)
+{
+  const char *del_todo_str = _("Do you really want to delete this task ?");
+  const char *erase_warning =
+      _("This item has a note attached to it. "
+        "Delete (t)odo or just its (n)ote ?");
+  const char *erase_choice = _("[tn]");
+  const int nb_erase_choice = 2;
+  int answer;
+
+  if ((todo_nb() <= 0) ||
+      (conf.confirm_delete && (status_ask_bool(del_todo_str) != 1))) {
+    wins_erase_status_bar();
+    return;
+  }
+
+  /* This todo item doesn't have any note associated. */
+  if (todo_get_item(todo_hilt())->note == NULL)
+    answer = 1;
+  else
+    answer = status_ask_choice(erase_warning, erase_choice, nb_erase_choice);
+
+  switch (answer) {
+  case 1:
+    todo_delete(todo_get_item(todo_hilt()));
+    todo_set_nb(todo_nb() - 1);
+    if (todo_hilt() > 1)
+      todo_hilt_decrease(1);
+    if (todo_nb() == 0)
+      todo_hilt_set(0);
+    if (todo_hilt_pos() < 0)
+      todo_first_decrease(1);
+    break;
+  case 2:
+    todo_delete_note(todo_get_item(todo_hilt()));
+    break;
+  default:
+    wins_erase_status_bar();
+    return;
+  }
+}
+
+/* Edit the description of an already existing todo item. */
+void ui_todo_edit(void)
+{
+  struct todo *i;
+  const char *mesg = _("Enter the new ToDo description :");
+
+  status_mesg(mesg, "");
+  i = todo_get_item(todo_hilt());
+  updatestring(win[STA].p, &i->mesg, 0, 1);
+}
+
+/* Pipe a todo item to an external program. */
+void ui_todo_pipe(void)
+{
+  char cmd[BUFSIZ] = "";
+  char const *arg[] = { cmd, NULL };
+  int pout;
+  int pid;
+  FILE *fpout;
+  struct todo *todo;
+
+  status_mesg(_("Pipe item to external command:"), "");
+  if (getstring(win[STA].p, cmd, BUFSIZ, 0, 1) != GETSTRING_VALID)
+    return;
+
+  wins_prepare_external();
+  if ((pid = shell_exec(NULL, &pout, *arg, arg))) {
+    fpout = fdopen(pout, "w");
+
+    todo = todo_get_item(todo_hilt());
+    todo_write(todo, fpout);
+
+    fclose(fpout);
+    child_wait(NULL, &pout, pid);
+    press_any_key();
+  }
+  wins_unprepare_external();
+}
+