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Diffstat (limited to 'src/filemanager/tree.c')
| -rw-r--r-- | src/filemanager/tree.c | 1345 |
1 files changed, 1345 insertions, 0 deletions
diff --git a/src/filemanager/tree.c b/src/filemanager/tree.c new file mode 100644 index 0000000..fd50407 --- /dev/null +++ b/src/filemanager/tree.c @@ -0,0 +1,1345 @@ +/* + Directory tree browser for the Midnight Commander + This module has been converted to be a widget. + + The program load and saves the tree each time the tree widget is + created and destroyed. This is required for the future vfs layer, + it will be possible to have tree views over virtual file systems. + + Copyright (C) 1994-2023 + Free Software Foundation, Inc. + + Written by: + Janne Kukonlehto, 1994, 1996 + Norbert Warmuth, 1997 + Miguel de Icaza, 1996, 1999 + Slava Zanko <slavazanko@gmail.com>, 2013 + Andrew Borodin <aborodin@vmail.ru>, 2013-2022 + + This file is part of the Midnight Commander. + + The Midnight Commander 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 3 of the License, + or (at your option) any later version. + + The Midnight Commander 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, see <http://www.gnu.org/licenses/>. + */ + +/** \file tree.c + * \brief Source: directory tree browser + */ + +#include <config.h> + +#include <errno.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> + +#include "lib/global.h" + +#include "lib/tty/tty.h" +#include "lib/tty/key.h" +#include "lib/skin.h" +#include "lib/vfs/vfs.h" +#include "lib/fileloc.h" +#include "lib/strutil.h" +#include "lib/util.h" +#include "lib/widget.h" +#include "lib/event.h" /* mc_event_raise() */ + +#include "src/setup.h" /* confirm_delete, panels_options */ +#include "src/keymap.h" +#include "src/history.h" + +#include "dir.h" +#include "filemanager.h" /* the_menubar */ +#include "file.h" /* copy_dir_dir(), move_dir_dir(), erase_dir() */ +#include "layout.h" /* command_prompt */ +#include "treestore.h" +#include "cmd.h" +#include "filegui.h" +#include "cd.h" /* cd_error_message() */ + +#include "tree.h" + +/*** global variables ****************************************************************************/ + +/* The pointer to the tree */ +WTree *the_tree = NULL; + +/* If this is true, then when browsing the tree the other window will + * automatically reload it's directory with the contents of the currently + * selected directory. + */ +gboolean xtree_mode = FALSE; + +/*** file scope macro definitions ****************************************************************/ + +#define tlines(t) (t->is_panel ? WIDGET (t)->rect.lines - 2 - \ + (panels_options.show_mini_info ? 2 : 0) : WIDGET (t)->rect.lines) + +/*** file scope type declarations ****************************************************************/ + +struct WTree +{ + Widget widget; + struct TreeStore *store; + tree_entry *selected_ptr; /* The selected directory */ + GString *search_buffer; /* Current search string */ + tree_entry **tree_shown; /* Entries currently on screen */ + gboolean is_panel; /* panel or plain widget flag */ + gboolean searching; /* Are we on searching mode? */ + int topdiff; /* The difference between the topmost + shown and the selected */ +}; + +/*** forward declarations (file scope functions) *************************************************/ + +static void tree_rescan (void *data); + +/*** file scope variables ************************************************************************/ + +/* Specifies the display mode: 1d or 2d */ +static gboolean tree_navigation_flag = FALSE; + +/* --------------------------------------------------------------------------------------------- */ +/*** file scope functions ************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +static tree_entry * +back_ptr (tree_entry * ptr, int *count) +{ + int i; + + for (i = 0; ptr != NULL && ptr->prev != NULL && i < *count; ptr = ptr->prev, i++) + ; + + *count = i; + return ptr; +} + +/* --------------------------------------------------------------------------------------------- */ + +static tree_entry * +forw_ptr (tree_entry * ptr, int *count) +{ + int i; + + for (i = 0; ptr != NULL && ptr->next != NULL && i < *count; ptr = ptr->next, i++) + ; + + *count = i; + return ptr; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +remove_callback (tree_entry * entry, void *data) +{ + WTree *tree = data; + + if (tree->selected_ptr == entry) + { + if (tree->selected_ptr->next != NULL) + tree->selected_ptr = tree->selected_ptr->next; + else + tree->selected_ptr = tree->selected_ptr->prev; + } +} + +/* --------------------------------------------------------------------------------------------- */ +/** Save the ${XDG_CACHE_HOME}/mc/Tree file */ + +static void +save_tree (WTree * tree) +{ + int error; + + (void) tree; + + error = tree_store_save (); + if (error != 0) + { + char *tree_name; + + tree_name = mc_config_get_full_path (MC_TREESTORE_FILE); + fprintf (stderr, _("Cannot open the %s file for writing:\n%s\n"), tree_name, + unix_error_string (error)); + g_free (tree_name); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_remove_entry (WTree * tree, const vfs_path_t * name_vpath) +{ + (void) tree; + tree_store_remove_entry (name_vpath); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_destroy (WTree * tree) +{ + tree_store_remove_entry_remove_hook (remove_callback); + save_tree (tree); + + MC_PTR_FREE (tree->tree_shown); + g_string_free (tree->search_buffer, TRUE); + tree->selected_ptr = NULL; +} + +/* --------------------------------------------------------------------------------------------- */ +/** Loads the .mc.tree file */ + +static void +load_tree (WTree * tree) +{ + vfs_path_t *vpath; + + tree_store_load (); + + tree->selected_ptr = tree->store->tree_first; + vpath = vfs_path_from_str (mc_config_get_home_dir ()); + tree_chdir (tree, vpath); + vfs_path_free (vpath, TRUE); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_show_mini_info (WTree * tree, int tree_lines, int tree_cols) +{ + Widget *w = WIDGET (tree); + int line; + + /* Show mini info */ + if (tree->is_panel) + { + if (!panels_options.show_mini_info) + return; + line = tree_lines + 2; + } + else + line = tree_lines + 1; + + if (tree->searching) + { + /* Show search string */ + tty_setcolor (INPUT_COLOR); + tty_draw_hline (w->rect.y + line, w->rect.x + 1, ' ', tree_cols); + widget_gotoyx (w, line, 1); + tty_print_char (PATH_SEP); + tty_print_string (str_fit_to_term (tree->search_buffer->str, tree_cols - 2, J_LEFT_FIT)); + tty_print_char (' '); + } + else + { + /* Show full name of selected directory */ + + const int *colors; + + colors = widget_get_colors (w); + tty_setcolor (tree->is_panel ? NORMAL_COLOR : colors[DLG_COLOR_NORMAL]); + tty_draw_hline (w->rect.y + line, w->rect.x + 1, ' ', tree_cols); + widget_gotoyx (w, line, 1); + tty_print_string (str_fit_to_term + (vfs_path_as_str (tree->selected_ptr->name), tree_cols, J_LEFT_FIT)); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +show_tree (WTree * tree) +{ + Widget *w = WIDGET (tree); + tree_entry *current; + int i, j; + int topsublevel = 0; + int x = 0, y = 0; + int tree_lines, tree_cols; + + /* Initialize */ + tree_lines = tlines (tree); + tree_cols = w->rect.cols; + + widget_gotoyx (w, y, x); + if (tree->is_panel) + { + tree_cols -= 2; + x = y = 1; + } + + g_free (tree->tree_shown); + tree->tree_shown = g_new0 (tree_entry *, tree_lines); + + if (tree->store->tree_first != NULL) + topsublevel = tree->store->tree_first->sublevel; + + if (tree->selected_ptr == NULL) + { + tree->selected_ptr = tree->store->tree_first; + tree->topdiff = 0; + } + current = tree->selected_ptr; + + /* Calculate the directory which is to be shown on the topmost line */ + if (!tree_navigation_flag) + current = back_ptr (current, &tree->topdiff); + else + { + i = 0; + + while (current->prev != NULL && i < tree->topdiff) + { + current = current->prev; + + if (current->sublevel < tree->selected_ptr->sublevel) + { + if (vfs_path_equal (current->name, tree->selected_ptr->name)) + i++; + } + else if (current->sublevel == tree->selected_ptr->sublevel) + { + const char *cname; + + cname = vfs_path_as_str (current->name); + for (j = strlen (cname) - 1; !IS_PATH_SEP (cname[j]); j--) + ; + if (vfs_path_equal_len (current->name, tree->selected_ptr->name, j)) + i++; + } + else if (current->sublevel == tree->selected_ptr->sublevel + 1) + { + j = vfs_path_len (tree->selected_ptr->name); + if (j > 1 && vfs_path_equal_len (current->name, tree->selected_ptr->name, j)) + i++; + } + } + tree->topdiff = i; + } + + /* Loop for every line */ + for (i = 0; i < tree_lines; i++) + { + const int *colors; + + colors = widget_get_colors (w); + tty_setcolor (tree->is_panel ? NORMAL_COLOR : colors[DLG_COLOR_NORMAL]); + + /* Move to the beginning of the line */ + tty_draw_hline (w->rect.y + y + i, w->rect.x + x, ' ', tree_cols); + + if (current == NULL) + continue; + + if (tree->is_panel) + { + gboolean selected; + + selected = widget_get_state (w, WST_FOCUSED) && current == tree->selected_ptr; + tty_setcolor (selected ? SELECTED_COLOR : NORMAL_COLOR); + } + else + { + int idx = current == tree->selected_ptr ? DLG_COLOR_FOCUS : DLG_COLOR_NORMAL; + + tty_setcolor (colors[idx]); + } + + tree->tree_shown[i] = current; + if (current->sublevel == topsublevel) + /* Show full name */ + tty_print_string (str_fit_to_term + (vfs_path_as_str (current->name), + tree_cols + (tree->is_panel ? 0 : 1), J_LEFT_FIT)); + else + { + /* Sub level directory */ + tty_set_alt_charset (TRUE); + + /* Output branch parts */ + for (j = 0; j < current->sublevel - topsublevel - 1; j++) + { + if (tree_cols - 8 - 3 * j < 9) + break; + tty_print_char (' '); + if ((current->submask & (1 << (j + topsublevel + 1))) != 0) + tty_print_char (ACS_VLINE); + else + tty_print_char (' '); + tty_print_char (' '); + } + tty_print_char (' '); + j++; + if (current->next == NULL || (current->next->submask & (1 << current->sublevel)) == 0) + tty_print_char (ACS_LLCORNER); + else + tty_print_char (ACS_LTEE); + tty_print_char (ACS_HLINE); + tty_set_alt_charset (FALSE); + + /* Show sub-name */ + tty_print_char (' '); + tty_print_string (str_fit_to_term + (current->subname, tree_cols - x - 3 * j, J_LEFT_FIT)); + } + + /* Calculate the next value for current */ + current = current->next; + if (tree_navigation_flag) + for (; current != NULL; current = current->next) + { + if (current->sublevel < tree->selected_ptr->sublevel) + { + if (vfs_path_equal_len (current->name, tree->selected_ptr->name, + vfs_path_len (current->name))) + break; + } + else if (current->sublevel == tree->selected_ptr->sublevel) + { + const char *cname; + + cname = vfs_path_as_str (current->name); + for (j = strlen (cname) - 1; !IS_PATH_SEP (cname[j]); j--) + ; + if (vfs_path_equal_len (current->name, tree->selected_ptr->name, j)) + break; + } + else if (current->sublevel == tree->selected_ptr->sublevel + 1 + && vfs_path_len (tree->selected_ptr->name) > 1) + { + if (vfs_path_equal_len (current->name, tree->selected_ptr->name, + vfs_path_len (tree->selected_ptr->name))) + break; + } + } + } + + tree_show_mini_info (tree, tree_lines, tree_cols); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_check_focus (WTree * tree) +{ + if (tree->topdiff < 3) + tree->topdiff = 3; + else if (tree->topdiff >= tlines (tree) - 3) + tree->topdiff = tlines (tree) - 3 - 1; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_backward (WTree * tree, int i) +{ + if (!tree_navigation_flag) + tree->selected_ptr = back_ptr (tree->selected_ptr, &i); + else + { + tree_entry *current; + int j = 0; + + current = tree->selected_ptr; + while (j < i && current->prev != NULL + && current->prev->sublevel >= tree->selected_ptr->sublevel) + { + current = current->prev; + if (current->sublevel == tree->selected_ptr->sublevel) + { + tree->selected_ptr = current; + j++; + } + } + i = j; + } + + tree->topdiff -= i; + tree_check_focus (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_forward (WTree * tree, int i) +{ + if (!tree_navigation_flag) + tree->selected_ptr = forw_ptr (tree->selected_ptr, &i); + else + { + tree_entry *current; + int j = 0; + + current = tree->selected_ptr; + while (j < i && current->next != NULL + && current->next->sublevel >= tree->selected_ptr->sublevel) + { + current = current->next; + if (current->sublevel == tree->selected_ptr->sublevel) + { + tree->selected_ptr = current; + j++; + } + } + i = j; + } + + tree->topdiff += i; + tree_check_focus (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_to_child (WTree * tree) +{ + tree_entry *current; + + /* Do we have a starting point? */ + if (tree->selected_ptr == NULL) + return; + + /* Take the next entry */ + current = tree->selected_ptr->next; + /* Is it the child of the selected entry */ + if (current != NULL && current->sublevel > tree->selected_ptr->sublevel) + { + /* Yes -> select this entry */ + tree->selected_ptr = current; + tree->topdiff++; + tree_check_focus (tree); + } + else + { + /* No -> rescan and try again */ + tree_rescan (tree); + current = tree->selected_ptr->next; + if (current != NULL && current->sublevel > tree->selected_ptr->sublevel) + { + tree->selected_ptr = current; + tree->topdiff++; + tree_check_focus (tree); + } + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static gboolean +tree_move_to_parent (WTree * tree) +{ + tree_entry *current; + tree_entry *old; + + if (tree->selected_ptr == NULL) + return FALSE; + + old = tree->selected_ptr; + + for (current = tree->selected_ptr->prev; + current != NULL && current->sublevel >= tree->selected_ptr->sublevel; + current = current->prev) + tree->topdiff--; + + if (current == NULL) + current = tree->store->tree_first; + tree->selected_ptr = current; + tree_check_focus (tree); + return tree->selected_ptr != old; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_to_top (WTree * tree) +{ + tree->selected_ptr = tree->store->tree_first; + tree->topdiff = 0; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_to_bottom (WTree * tree) +{ + tree->selected_ptr = tree->store->tree_last; + tree->topdiff = tlines (tree) - 3 - 1; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_chdir_sel (WTree * tree) +{ + if (tree->is_panel) + { + WPanel *p; + + p = change_panel (); + + if (panel_cd (p, tree->selected_ptr->name, cd_exact)) + select_item (p); + else + cd_error_message (vfs_path_as_str (tree->selected_ptr->name)); + + widget_draw (WIDGET (p)); + (void) change_panel (); + show_tree (tree); + } + else + { + WDialog *h = DIALOG (WIDGET (tree)->owner); + + h->ret_value = B_ENTER; + dlg_close (h); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +maybe_chdir (WTree * tree) +{ + if (xtree_mode && tree->is_panel && is_idle ()) + tree_chdir_sel (tree); +} + +/* --------------------------------------------------------------------------------------------- */ +/** Search tree for text */ + +static gboolean +search_tree (WTree * tree, const GString * text) +{ + tree_entry *current = tree->selected_ptr; + gboolean wrapped = FALSE; + gboolean found = FALSE; + + while (!found && (!wrapped || current != tree->selected_ptr)) + if (strncmp (current->subname, text->str, text->len) == 0) + { + tree->selected_ptr = current; + found = TRUE; + } + else + { + current = current->next; + if (current == NULL) + { + current = tree->store->tree_first; + wrapped = TRUE; + } + + tree->topdiff++; + } + + tree_check_focus (tree); + return found; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_do_search (WTree * tree, int key) +{ + /* TODO: support multi-byte characters, see do_search() in panel.c */ + + if (tree->search_buffer->len != 0 && key == KEY_BACKSPACE) + g_string_set_size (tree->search_buffer, tree->search_buffer->len - 1); + else if (key != 0) + g_string_append_c (tree->search_buffer, (gchar) key); + + if (!search_tree (tree, tree->search_buffer)) + g_string_set_size (tree->search_buffer, tree->search_buffer->len - 1); + + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_rescan (void *data) +{ + WTree *tree = data; + vfs_path_t *old_vpath; + + old_vpath = vfs_path_clone (vfs_get_raw_current_dir ()); + if (old_vpath == NULL) + return; + + if (tree->selected_ptr != NULL && mc_chdir (tree->selected_ptr->name) == 0) + { + int ret; + + tree_store_rescan (tree->selected_ptr->name); + ret = mc_chdir (old_vpath); + (void) ret; + } + vfs_path_free (old_vpath, TRUE); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_forget (void *data) +{ + WTree *tree = data; + + if (tree->selected_ptr != NULL) + tree_remove_entry (tree, tree->selected_ptr->name); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_copy (WTree * tree, const char *default_dest) +{ + char msg[BUF_MEDIUM]; + char *dest; + + if (tree->selected_ptr == NULL) + return; + + g_snprintf (msg, sizeof (msg), _("Copy \"%s\" directory to:"), + str_trunc (vfs_path_as_str (tree->selected_ptr->name), 50)); + dest = input_expand_dialog (Q_ ("DialogTitle|Copy"), + msg, MC_HISTORY_FM_TREE_COPY, default_dest, + INPUT_COMPLETE_FILENAMES | INPUT_COMPLETE_CD); + + if (dest != NULL && *dest != '\0') + { + file_op_context_t *ctx; + file_op_total_context_t *tctx; + + ctx = file_op_context_new (OP_COPY); + tctx = file_op_total_context_new (); + file_op_context_create_ui (ctx, FALSE, FILEGUI_DIALOG_MULTI_ITEM); + tctx->ask_overwrite = FALSE; + copy_dir_dir (tctx, ctx, vfs_path_as_str (tree->selected_ptr->name), dest, TRUE, FALSE, + FALSE, NULL); + file_op_total_context_destroy (tctx); + file_op_context_destroy (ctx); + } + + g_free (dest); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move (WTree * tree, const char *default_dest) +{ + char msg[BUF_MEDIUM]; + char *dest; + + if (tree->selected_ptr == NULL) + return; + + g_snprintf (msg, sizeof (msg), _("Move \"%s\" directory to:"), + str_trunc (vfs_path_as_str (tree->selected_ptr->name), 50)); + dest = + input_expand_dialog (Q_ ("DialogTitle|Move"), msg, MC_HISTORY_FM_TREE_MOVE, default_dest, + INPUT_COMPLETE_FILENAMES | INPUT_COMPLETE_CD); + + if (dest != NULL && *dest != '\0') + { + vfs_path_t *dest_vpath; + struct stat buf; + + dest_vpath = vfs_path_from_str (dest); + + if (mc_stat (dest_vpath, &buf)) + message (D_ERROR, MSG_ERROR, _("Cannot stat the destination\n%s"), + unix_error_string (errno)); + else if (!S_ISDIR (buf.st_mode)) + file_error (TRUE, _("Destination \"%s\" must be a directory\n%s"), dest); + else + { + file_op_context_t *ctx; + file_op_total_context_t *tctx; + + ctx = file_op_context_new (OP_MOVE); + tctx = file_op_total_context_new (); + file_op_context_create_ui (ctx, FALSE, FILEGUI_DIALOG_ONE_ITEM); + move_dir_dir (tctx, ctx, vfs_path_as_str (tree->selected_ptr->name), dest); + file_op_total_context_destroy (tctx); + file_op_context_destroy (ctx); + } + + vfs_path_free (dest_vpath, TRUE); + } + + g_free (dest); +} + +/* --------------------------------------------------------------------------------------------- */ + +#if 0 +static void +tree_mkdir (WTree * tree) +{ + char old_dir[MC_MAXPATHLEN]; + + if (tree->selected_ptr == NULL || chdir (tree->selected_ptr->name) != 0) + return; + /* FIXME + mkdir_cmd (tree); + */ + tree_rescan (tree); + chdir (old_dir); +} +#endif + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_rmdir (void *data) +{ + WTree *tree = data; + file_op_context_t *ctx; + file_op_total_context_t *tctx; + + if (tree->selected_ptr == NULL) + return; + + if (confirm_delete) + { + char *buf; + int result; + + buf = g_strdup_printf (_("Delete %s?"), vfs_path_as_str (tree->selected_ptr->name)); + + result = query_dialog (Q_ ("DialogTitle|Delete"), buf, D_ERROR, 2, _("&Yes"), _("&No")); + g_free (buf); + if (result != 0) + return; + } + + ctx = file_op_context_new (OP_DELETE); + tctx = file_op_total_context_new (); + + file_op_context_create_ui (ctx, FALSE, FILEGUI_DIALOG_ONE_ITEM); + if (erase_dir (tctx, ctx, tree->selected_ptr->name) == FILE_CONT) + tree_forget (tree); + file_op_total_context_destroy (tctx); + file_op_context_destroy (ctx); +} + +/* --------------------------------------------------------------------------------------------- */ + +static inline void +tree_move_up (WTree * tree) +{ + tree_move_backward (tree, 1); + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static inline void +tree_move_down (WTree * tree) +{ + tree_move_forward (tree, 1); + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static inline void +tree_move_home (WTree * tree) +{ + tree_move_to_top (tree); + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static inline void +tree_move_end (WTree * tree) +{ + tree_move_to_bottom (tree); + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_pgup (WTree * tree) +{ + tree_move_backward (tree, tlines (tree) - 1); + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_move_pgdn (WTree * tree) +{ + tree_move_forward (tree, tlines (tree) - 1); + show_tree (tree); + maybe_chdir (tree); +} + +/* --------------------------------------------------------------------------------------------- */ + +static gboolean +tree_move_left (WTree * tree) +{ + gboolean v = FALSE; + + if (tree_navigation_flag) + { + v = tree_move_to_parent (tree); + show_tree (tree); + maybe_chdir (tree); + } + + return v; +} + +/* --------------------------------------------------------------------------------------------- */ + +static gboolean +tree_move_right (WTree * tree) +{ + gboolean v = FALSE; + + if (tree_navigation_flag) + { + tree_move_to_child (tree); + show_tree (tree); + maybe_chdir (tree); + v = TRUE; + } + + return v; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_start_search (WTree * tree) +{ + if (tree->searching) + { + if (tree->selected_ptr == tree->store->tree_last) + tree_move_to_top (tree); + else + { + gboolean i; + + /* set navigation mode temporarily to 'Static' because in + * dynamic navigation mode tree_move_forward will not move + * to a lower sublevel if necessary (sequent searches must + * start with the directory followed the last found directory) + */ + i = tree_navigation_flag; + tree_navigation_flag = FALSE; + tree_move_forward (tree, 1); + tree_navigation_flag = i; + } + tree_do_search (tree, 0); + } + else + { + tree->searching = TRUE; + g_string_set_size (tree->search_buffer, 0); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_toggle_navig (WTree * tree) +{ + Widget *w = WIDGET (tree); + WButtonBar *b; + + tree_navigation_flag = !tree_navigation_flag; + + b = buttonbar_find (DIALOG (w->owner)); + buttonbar_set_label (b, 4, + tree_navigation_flag ? Q_ ("ButtonBar|Static") : Q_ ("ButtonBar|Dynamc"), + w->keymap, w); + widget_draw (WIDGET (b)); +} + +/* --------------------------------------------------------------------------------------------- */ + +static cb_ret_t +tree_execute_cmd (WTree * tree, long command) +{ + cb_ret_t res = MSG_HANDLED; + + if (command != CK_Search) + tree->searching = FALSE; + + switch (command) + { + case CK_Help: + { + ev_help_t event_data = { NULL, "[Directory Tree]" }; + mc_event_raise (MCEVENT_GROUP_CORE, "help", &event_data); + } + break; + case CK_Forget: + tree_forget (tree); + break; + case CK_ToggleNavigation: + tree_toggle_navig (tree); + break; + case CK_Copy: + tree_copy (tree, ""); + break; + case CK_Move: + tree_move (tree, ""); + break; + case CK_Up: + tree_move_up (tree); + break; + case CK_Down: + tree_move_down (tree); + break; + case CK_Top: + tree_move_home (tree); + break; + case CK_Bottom: + tree_move_end (tree); + break; + case CK_PageUp: + tree_move_pgup (tree); + break; + case CK_PageDown: + tree_move_pgdn (tree); + break; + case CK_Enter: + tree_chdir_sel (tree); + break; + case CK_Reread: + tree_rescan (tree); + break; + case CK_Search: + tree_start_search (tree); + break; + case CK_Delete: + tree_rmdir (tree); + break; + case CK_Quit: + if (!tree->is_panel) + dlg_close (DIALOG (WIDGET (tree)->owner)); + return res; + default: + res = MSG_NOT_HANDLED; + } + + show_tree (tree); + + return res; +} + +/* --------------------------------------------------------------------------------------------- */ + +static cb_ret_t +tree_key (WTree * tree, int key) +{ + long command; + + if (is_abort_char (key)) + { + if (tree->is_panel) + { + tree->searching = FALSE; + show_tree (tree); + return MSG_HANDLED; /* eat abort char */ + } + /* modal tree dialog: let upper layer see the + abort character and close the dialog */ + return MSG_NOT_HANDLED; + } + + if (tree->searching && ((key >= ' ' && key <= 255) || key == KEY_BACKSPACE)) + { + tree_do_search (tree, key); + show_tree (tree); + return MSG_HANDLED; + } + + command = widget_lookup_key (WIDGET (tree), key); + switch (command) + { + case CK_IgnoreKey: + break; + case CK_Left: + return tree_move_left (tree) ? MSG_HANDLED : MSG_NOT_HANDLED; + case CK_Right: + return tree_move_right (tree) ? MSG_HANDLED : MSG_NOT_HANDLED; + default: + tree_execute_cmd (tree, command); + return MSG_HANDLED; + } + + /* Do not eat characters not meant for the tree below ' ' (e.g. C-l). */ + if (!command_prompt && ((key >= ' ' && key <= 255) || key == KEY_BACKSPACE)) + { + tree_start_search (tree); + tree_do_search (tree, key); + return MSG_HANDLED; + } + + return MSG_NOT_HANDLED; +} + +/* --------------------------------------------------------------------------------------------- */ + +static void +tree_frame (WDialog * h, WTree * tree) +{ + Widget *w = WIDGET (tree); + + (void) h; + + tty_setcolor (NORMAL_COLOR); + widget_erase (w); + if (tree->is_panel) + { + const char *title = _("Directory tree"); + const int len = str_term_width1 (title); + + tty_draw_box (w->rect.y, w->rect.x, w->rect.lines, w->rect.cols, FALSE); + + widget_gotoyx (w, 0, (w->rect.cols - len - 2) / 2); + tty_printf (" %s ", title); + + if (panels_options.show_mini_info) + { + int y; + + y = w->rect.lines - 3; + widget_gotoyx (w, y, 0); + tty_print_alt_char (ACS_LTEE, FALSE); + widget_gotoyx (w, y, w->rect.cols - 1); + tty_print_alt_char (ACS_RTEE, FALSE); + tty_draw_hline (w->rect.y + y, w->rect.x + 1, ACS_HLINE, w->rect.cols - 2); + } + } +} + +/* --------------------------------------------------------------------------------------------- */ + +static cb_ret_t +tree_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data) +{ + WTree *tree = (WTree *) w; + WDialog *h = DIALOG (w->owner); + WButtonBar *b; + + switch (msg) + { + case MSG_DRAW: + tree_frame (h, tree); + show_tree (tree); + if (widget_get_state (w, WST_FOCUSED)) + { + b = buttonbar_find (h); + widget_draw (WIDGET (b)); + } + return MSG_HANDLED; + + case MSG_FOCUS: + b = buttonbar_find (h); + buttonbar_set_label (b, 1, Q_ ("ButtonBar|Help"), w->keymap, w); + buttonbar_set_label (b, 2, Q_ ("ButtonBar|Rescan"), w->keymap, w); + buttonbar_set_label (b, 3, Q_ ("ButtonBar|Forget"), w->keymap, w); + buttonbar_set_label (b, 4, tree_navigation_flag ? Q_ ("ButtonBar|Static") + : Q_ ("ButtonBar|Dynamc"), w->keymap, w); + buttonbar_set_label (b, 5, Q_ ("ButtonBar|Copy"), w->keymap, w); + buttonbar_set_label (b, 6, Q_ ("ButtonBar|RenMov"), w->keymap, w); +#if 0 + /* FIXME: mkdir is currently defunct */ + buttonbar_set_label (b, 7, Q_ ("ButtonBar|Mkdir"), w->keymap, w); +#else + buttonbar_clear_label (b, 7, w); +#endif + buttonbar_set_label (b, 8, Q_ ("ButtonBar|Rmdir"), w->keymap, w); + + return MSG_HANDLED; + + case MSG_UNFOCUS: + tree->searching = FALSE; + return MSG_HANDLED; + + case MSG_KEY: + return tree_key (tree, parm); + + case MSG_ACTION: + /* command from buttonbar */ + return tree_execute_cmd (tree, parm); + + case MSG_DESTROY: + tree_destroy (tree); + return MSG_HANDLED; + + default: + return widget_default_callback (w, sender, msg, parm, data); + } +} + +/* --------------------------------------------------------------------------------------------- */ + +/** + * Mouse callback + */ +static void +tree_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event) +{ + WTree *tree = (WTree *) w; + int y; + + y = event->y; + if (tree->is_panel) + y--; + + switch (msg) + { + case MSG_MOUSE_DOWN: + /* rest of the upper frame - call menu */ + if (tree->is_panel && event->y == WIDGET (w->owner)->rect.y) + { + /* return MOU_UNHANDLED */ + event->result.abort = TRUE; + } + else if (!widget_get_state (w, WST_FOCUSED)) + (void) change_panel (); + break; + + case MSG_MOUSE_CLICK: + { + int lines; + + lines = tlines (tree); + + if (y < 0) + { + tree_move_backward (tree, lines - 1); + show_tree (tree); + } + else if (y >= lines) + { + tree_move_forward (tree, lines - 1); + show_tree (tree); + } + else if ((event->count & GPM_DOUBLE) != 0) + { + if (tree->tree_shown[y] != NULL) + { + tree->selected_ptr = tree->tree_shown[y]; + tree->topdiff = y; + } + + tree_chdir_sel (tree); + } + } + break; + + case MSG_MOUSE_SCROLL_UP: + case MSG_MOUSE_SCROLL_DOWN: + /* TODO: Ticket #2218 */ + break; + + default: + break; + } +} + +/* --------------------------------------------------------------------------------------------- */ +/*** public functions ****************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +WTree * +tree_new (int y, int x, int lines, int cols, gboolean is_panel) +{ + WRect r = { y, x, lines, cols }; + WTree *tree; + Widget *w; + + tree = g_new (WTree, 1); + + w = WIDGET (tree); + widget_init (w, &r, tree_callback, tree_mouse_callback); + w->options |= WOP_SELECTABLE | WOP_TOP_SELECT; + w->keymap = tree_map; + + tree->is_panel = is_panel; + tree->selected_ptr = NULL; + + tree->store = tree_store_get (); + tree_store_add_entry_remove_hook (remove_callback, tree); + tree->tree_shown = NULL; + tree->search_buffer = g_string_sized_new (MC_MAXPATHLEN); + tree->topdiff = w->rect.lines / 2; + tree->searching = FALSE; + + load_tree (tree); + return tree; +} + +/* --------------------------------------------------------------------------------------------- */ + +void +tree_chdir (WTree * tree, const vfs_path_t * dir) +{ + tree_entry *current; + + current = tree_store_whereis (dir); + if (current != NULL) + { + tree->selected_ptr = current; + tree_check_focus (tree); + } +} + +/* --------------------------------------------------------------------------------------------- */ +/** Return name of the currently selected entry */ + +const vfs_path_t * +tree_selected_name (const WTree * tree) +{ + return tree->selected_ptr->name; +} + +/* --------------------------------------------------------------------------------------------- */ + +void +sync_tree (const vfs_path_t * vpath) +{ + tree_chdir (the_tree, vpath); +} + +/* --------------------------------------------------------------------------------------------- */ + +WTree * +find_tree (const WDialog * h) +{ + return (WTree *) widget_find_by_type (CONST_WIDGET (h), tree_callback); +} + +/* --------------------------------------------------------------------------------------------- */ |