/* GTK - The GIMP Toolkit * gtkfilechooserentry.c: Entry with filename completion * Copyright (C) 2003, Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "config.h" #include "gtkfilechooserentry.h" #include #include "gtkalignment.h" #include "gtkcelllayout.h" #include "gtkcellrenderertext.h" #include "gtkentry.h" #include "gtklabel.h" #include "gtkmain.h" #include "gtksizerequest.h" #include "gtkwindow.h" #include "gtkintl.h" #include "gdkkeysyms.h" typedef struct _GtkFileChooserEntryClass GtkFileChooserEntryClass; #define GTK_FILE_CHOOSER_ENTRY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass)) #define GTK_IS_FILE_CHOOSER_ENTRY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_FILE_CHOOSER_ENTRY)) #define GTK_FILE_CHOOSER_ENTRY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_FILE_CHOOSER_ENTRY, GtkFileChooserEntryClass)) struct _GtkFileChooserEntryClass { GtkEntryClass parent_class; }; /* Action to take when the current folder finishes loading (for explicit or automatic completion) */ typedef enum { LOAD_COMPLETE_NOTHING, LOAD_COMPLETE_AUTOCOMPLETE, LOAD_COMPLETE_EXPLICIT_COMPLETION } LoadCompleteAction; typedef enum { REFRESH_OK, REFRESH_INVALID_INPUT, REFRESH_INCOMPLETE_HOSTNAME, REFRESH_NONEXISTENT, REFRESH_NOT_LOCAL } RefreshStatus; struct _GtkFileChooserEntry { GtkEntry parent_instance; GtkFileChooserAction action; GtkFileSystem *file_system; GFile *base_folder; GFile *current_folder_file; gchar *file_part; gint file_part_pos; /* Folder being loaded or already loaded */ GtkFolder *current_folder; GCancellable *load_folder_cancellable; LoadCompleteAction load_complete_action; GtkListStore *completion_store; guint start_autocompletion_idle_id; GtkWidget *completion_feedback_window; GtkWidget *completion_feedback_label; guint completion_feedback_timeout_id; guint has_completion : 1; guint in_change : 1; guint eat_tabs : 1; guint local_only : 1; }; enum { DISPLAY_NAME_COLUMN, FILE_COLUMN, N_COLUMNS }; #define COMPLETION_FEEDBACK_TIMEOUT_MS 2000 static void gtk_file_chooser_entry_iface_init (GtkEditableInterface *iface); static void gtk_file_chooser_entry_finalize (GObject *object); static void gtk_file_chooser_entry_dispose (GObject *object); static void gtk_file_chooser_entry_grab_focus (GtkWidget *widget); static void gtk_file_chooser_entry_unmap (GtkWidget *widget); static gboolean gtk_file_chooser_entry_key_press_event (GtkWidget *widget, GdkEventKey *event); static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget *widget, GdkEventFocus *event); static void gtk_file_chooser_entry_activate (GtkEntry *entry); static void gtk_file_chooser_entry_do_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position); static void gtk_file_chooser_entry_do_delete_text (GtkEditable *editable, gint start_pos, gint end_pos); static void gtk_file_chooser_entry_set_position (GtkEditable *editable, gint position); static void gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable, gint start_pos, gint end_pos); #ifdef G_OS_WIN32 static gint insert_text_callback (GtkFileChooserEntry *widget, const gchar *new_text, gint new_text_length, gint *position, gpointer user_data); static void delete_text_callback (GtkFileChooserEntry *widget, gint start_pos, gint end_pos, gpointer user_data); #endif static gboolean match_selected_callback (GtkEntryCompletion *completion, GtkTreeModel *model, GtkTreeIter *iter, GtkFileChooserEntry *chooser_entry); static gboolean completion_match_func (GtkEntryCompletion *comp, const char *key, GtkTreeIter *iter, gpointer data); static char *maybe_append_separator_to_file (GtkFileChooserEntry *chooser_entry, GFile *file, gchar *display_name, gboolean *appended); typedef enum { REFRESH_UP_TO_CURSOR_POSITION, REFRESH_WHOLE_TEXT } RefreshMode; static RefreshStatus refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry, RefreshMode refresh_mode); static void finished_loading_cb (GtkFolder *folder, gpointer data); static void autocomplete (GtkFileChooserEntry *chooser_entry); static void install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry); static void remove_completion_feedback (GtkFileChooserEntry *chooser_entry); static void pop_up_completion_feedback (GtkFileChooserEntry *chooser_entry, const gchar *feedback); static GtkEditableInterface *parent_editable_iface; G_DEFINE_TYPE_WITH_CODE (GtkFileChooserEntry, _gtk_file_chooser_entry, GTK_TYPE_ENTRY, G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, gtk_file_chooser_entry_iface_init)) static void _gtk_file_chooser_entry_class_init (GtkFileChooserEntryClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); GtkEntryClass *entry_class = GTK_ENTRY_CLASS (class); gobject_class->finalize = gtk_file_chooser_entry_finalize; gobject_class->dispose = gtk_file_chooser_entry_dispose; widget_class->grab_focus = gtk_file_chooser_entry_grab_focus; widget_class->unmap = gtk_file_chooser_entry_unmap; widget_class->key_press_event = gtk_file_chooser_entry_key_press_event; widget_class->focus_out_event = gtk_file_chooser_entry_focus_out_event; entry_class->activate = gtk_file_chooser_entry_activate; } static void gtk_file_chooser_entry_iface_init (GtkEditableInterface *iface) { parent_editable_iface = g_type_interface_peek_parent (iface); iface->do_insert_text = gtk_file_chooser_entry_do_insert_text; iface->do_delete_text = gtk_file_chooser_entry_do_delete_text; iface->set_position = gtk_file_chooser_entry_set_position; iface->set_selection_bounds = gtk_file_chooser_entry_set_selection_bounds; } static void _gtk_file_chooser_entry_init (GtkFileChooserEntry *chooser_entry) { GtkEntryCompletion *comp; GtkCellRenderer *cell; chooser_entry->local_only = TRUE; g_object_set (chooser_entry, "truncate-multiline", TRUE, NULL); comp = gtk_entry_completion_new (); gtk_entry_completion_set_popup_single_match (comp, FALSE); gtk_entry_completion_set_match_func (comp, completion_match_func, chooser_entry, NULL); cell = gtk_cell_renderer_text_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (comp), cell, TRUE); gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (comp), cell, "text", 0); g_signal_connect (comp, "match-selected", G_CALLBACK (match_selected_callback), chooser_entry); gtk_entry_set_completion (GTK_ENTRY (chooser_entry), comp); g_object_unref (comp); #ifdef G_OS_WIN32 g_signal_connect (chooser_entry, "insert-text", G_CALLBACK (insert_text_callback), NULL); g_signal_connect (chooser_entry, "delete-text", G_CALLBACK (delete_text_callback), NULL); #endif } static void gtk_file_chooser_entry_finalize (GObject *object) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object); if (chooser_entry->base_folder) g_object_unref (chooser_entry->base_folder); if (chooser_entry->current_folder) g_object_unref (chooser_entry->current_folder); if (chooser_entry->current_folder_file) g_object_unref (chooser_entry->current_folder_file); g_free (chooser_entry->file_part); G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->finalize (object); } static void discard_current_folder (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->current_folder) { g_signal_handlers_disconnect_by_func (chooser_entry->current_folder, G_CALLBACK (finished_loading_cb), chooser_entry); g_object_unref (chooser_entry->current_folder); chooser_entry->current_folder = NULL; } } static void discard_loading_and_current_folder_file (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->load_folder_cancellable) { g_cancellable_cancel (chooser_entry->load_folder_cancellable); chooser_entry->load_folder_cancellable = NULL; } if (chooser_entry->current_folder_file) { g_object_unref (chooser_entry->current_folder_file); chooser_entry->current_folder_file = NULL; } } static void gtk_file_chooser_entry_dispose (GObject *object) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (object); remove_completion_feedback (chooser_entry); discard_current_folder (chooser_entry); discard_loading_and_current_folder_file (chooser_entry); if (chooser_entry->start_autocompletion_idle_id != 0) { g_source_remove (chooser_entry->start_autocompletion_idle_id); chooser_entry->start_autocompletion_idle_id = 0; } if (chooser_entry->completion_store) { g_object_unref (chooser_entry->completion_store); chooser_entry->completion_store = NULL; } if (chooser_entry->file_system) { g_object_unref (chooser_entry->file_system); chooser_entry->file_system = NULL; } G_OBJECT_CLASS (_gtk_file_chooser_entry_parent_class)->dispose (object); } /* Match functions for the GtkEntryCompletion */ static gboolean match_selected_callback (GtkEntryCompletion *completion, GtkTreeModel *model, GtkTreeIter *iter, GtkFileChooserEntry *chooser_entry) { char *display_name; GFile *file; gint pos; gboolean dummy; gtk_tree_model_get (model, iter, DISPLAY_NAME_COLUMN, &display_name, FILE_COLUMN, &file, -1); if (!display_name || !file) { /* these shouldn't complain if passed NULL */ g_object_unref (file); g_free (display_name); return FALSE; } display_name = maybe_append_separator_to_file (chooser_entry, file, display_name, &dummy); pos = chooser_entry->file_part_pos; /* We don't set in_change here as we want to update the current_folder * variable */ gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), pos, -1); gtk_editable_insert_text (GTK_EDITABLE (chooser_entry), display_name, -1, &pos); gtk_editable_set_position (GTK_EDITABLE (chooser_entry), -1); g_object_unref (file); g_free (display_name); return TRUE; } /* Match function for the GtkEntryCompletion */ static gboolean completion_match_func (GtkEntryCompletion *comp, const char *key_unused, GtkTreeIter *iter, gpointer data) { GtkFileChooserEntry *chooser_entry; char *name; gboolean result; char *norm_file_part; char *norm_name; chooser_entry = GTK_FILE_CHOOSER_ENTRY (data); /* We ignore the key because it is the contents of the entry. Instead, we * just use our precomputed file_part. */ if (!chooser_entry->file_part) { return FALSE; } gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store), iter, DISPLAY_NAME_COLUMN, &name, -1); if (!name) { return FALSE; /* Uninitialized row, ugh */ } /* If we have an empty file_part, then we're at the root of a directory. In * that case, we want to match all non-dot files. We might want to match * dot_files too if show_hidden is TRUE on the fileselector in the future. */ /* Additionally, support for gnome .hidden files would be sweet, too */ if (chooser_entry->file_part[0] == '\000') { if (name[0] == '.') result = FALSE; else result = TRUE; g_free (name); return result; } norm_file_part = g_utf8_normalize (chooser_entry->file_part, -1, G_NORMALIZE_ALL); norm_name = g_utf8_normalize (name, -1, G_NORMALIZE_ALL); #ifdef G_PLATFORM_WIN32 { gchar *temp; temp = norm_file_part; norm_file_part = g_utf8_casefold (norm_file_part, -1); g_free (temp); temp = norm_name; norm_name = g_utf8_casefold (norm_name, -1); g_free (temp); } #endif result = (strncmp (norm_file_part, norm_name, strlen (norm_file_part)) == 0); g_free (norm_file_part); g_free (norm_name); g_free (name); return result; } static void clear_completions (GtkFileChooserEntry *chooser_entry) { chooser_entry->has_completion = FALSE; chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING; remove_completion_feedback (chooser_entry); } static void beep (GtkFileChooserEntry *chooser_entry) { gtk_widget_error_bell (GTK_WIDGET (chooser_entry)); } /* This function will append a directory separator to paths to * display_name iff the path associated with it is a directory. * maybe_append_separator_to_file will g_free the display_name and * return a new one if needed. Otherwise, it will return the old one. * You should be safe calling * * display_name = maybe_append_separator_to_file (entry, file, display_name, &appended); * ... * g_free (display_name); */ static char * maybe_append_separator_to_file (GtkFileChooserEntry *chooser_entry, GFile *file, gchar *display_name, gboolean *appended) { *appended = FALSE; if (!g_str_has_suffix (display_name, G_DIR_SEPARATOR_S) && file) { GFileInfo *info; info = _gtk_folder_get_info (chooser_entry->current_folder, file); if (info) { if (_gtk_file_info_consider_as_directory (info)) { gchar *tmp = display_name; display_name = g_strconcat (tmp, G_DIR_SEPARATOR_S, NULL); *appended = TRUE; g_free (tmp); } g_object_unref (info); } } return display_name; } static char * trim_dir_separator_suffix (const char *str) { int len; len = strlen (str); if (len > 0 && G_IS_DIR_SEPARATOR (str[len - 1])) return g_strndup (str, len - 1); else return g_strdup (str); } /* Determines if the completion model has entries with a common prefix relative * to the current contents of the entry. Also, if there's one and only one such * path, stores it in unique_path_ret. */ static gboolean find_common_prefix (GtkFileChooserEntry *chooser_entry, gchar **common_prefix_ret, GFile **unique_file_ret, gboolean *is_complete_not_unique_ret, gboolean *prefix_expands_the_file_part_ret, GError **error) { GtkEditable *editable; GtkTreeIter iter; gboolean parsed; gboolean valid; char *text_up_to_cursor; GFile *parsed_folder_file; char *parsed_file_part; *common_prefix_ret = NULL; *unique_file_ret = NULL; *is_complete_not_unique_ret = FALSE; *prefix_expands_the_file_part_ret = FALSE; editable = GTK_EDITABLE (chooser_entry); text_up_to_cursor = gtk_editable_get_chars (editable, 0, gtk_editable_get_position (editable)); parsed = _gtk_file_system_parse (chooser_entry->file_system, chooser_entry->base_folder, text_up_to_cursor, &parsed_folder_file, &parsed_file_part, error); g_free (text_up_to_cursor); if (!parsed) return FALSE; g_assert (parsed_folder_file != NULL && chooser_entry->current_folder != NULL && g_file_equal (parsed_folder_file, chooser_entry->current_folder_file)); g_object_unref (parsed_folder_file); /* First pass: find the common prefix */ valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter); while (valid) { gchar *display_name; GFile *file; gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store), &iter, DISPLAY_NAME_COLUMN, &display_name, FILE_COLUMN, &file, -1); if (g_str_has_prefix (display_name, parsed_file_part)) { if (!*common_prefix_ret) { *common_prefix_ret = trim_dir_separator_suffix (display_name); *unique_file_ret = g_object_ref (file); } else { gchar *p = *common_prefix_ret; const gchar *q = display_name; while (*p && *p == *q) { p++; q++; } *p = '\0'; if (*unique_file_ret) { g_object_unref (*unique_file_ret); *unique_file_ret = NULL; } } } g_free (display_name); g_object_unref (file); valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter); } /* Second pass: see if the prefix we found is a complete match */ if (*common_prefix_ret != NULL) { valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (chooser_entry->completion_store), &iter); while (valid) { gchar *display_name; int len; gtk_tree_model_get (GTK_TREE_MODEL (chooser_entry->completion_store), &iter, DISPLAY_NAME_COLUMN, &display_name, -1); len = strlen (display_name); g_assert (len > 0); if (G_IS_DIR_SEPARATOR (display_name[len - 1])) len--; if (*unique_file_ret == NULL && strncmp (*common_prefix_ret, display_name, len) == 0) *is_complete_not_unique_ret = TRUE; g_free (display_name); valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (chooser_entry->completion_store), &iter); } /* Finally: Did we generate a new completion, or was the user's input already completed as far as it could go? */ *prefix_expands_the_file_part_ret = g_utf8_strlen (*common_prefix_ret, -1) > g_utf8_strlen (parsed_file_part, -1); } g_free (parsed_file_part); return TRUE; } static gboolean char_after_cursor_is_directory_separator (GtkFileChooserEntry *chooser_entry) { int cursor_pos; gboolean result; result = FALSE; cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry)); if (cursor_pos < gtk_entry_get_text_length (GTK_ENTRY (chooser_entry))) { char *next_char_str; next_char_str = gtk_editable_get_chars (GTK_EDITABLE (chooser_entry), cursor_pos, cursor_pos + 1); if (G_IS_DIR_SEPARATOR (*next_char_str)) result = TRUE; g_free (next_char_str); } return result; } typedef enum { INVALID_INPUT, /* what the user typed is bogus */ NO_MATCH, /* no matches based on what the user typed */ NOTHING_INSERTED_COMPLETE, /* what the user typed is already completed as far as it will go */ NOTHING_INSERTED_UNIQUE, /* what the user typed is already completed, and is a unique match */ COMPLETED, /* completion inserted (ambiguous suffix) */ COMPLETED_UNIQUE, /* completion inserted, and it is a complete name and a unique match */ COMPLETE_BUT_NOT_UNIQUE /* completion inserted, it is a complete name but not unique */ } CommonPrefixResult; /* Finds a common prefix based on the contents of the entry and mandatorily appends it */ static CommonPrefixResult append_common_prefix (GtkFileChooserEntry *chooser_entry, gboolean highlight, gboolean show_errors) { gchar *common_prefix; GFile *unique_file; gboolean is_complete_not_unique; gboolean prefix_expands_the_file_part; GError *error; CommonPrefixResult result = NO_MATCH; gboolean have_result; clear_completions (chooser_entry); if (chooser_entry->completion_store == NULL) return NO_MATCH; error = NULL; if (!find_common_prefix (chooser_entry, &common_prefix, &unique_file, &is_complete_not_unique, &prefix_expands_the_file_part, &error)) { /* If the user types an incomplete hostname ("http://foo" without a slash * after that), it's not an error. We just don't want to pop up a * meaningless completion window in that state. */ if (!g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_INCOMPLETE_HOSTNAME) && show_errors) { beep (chooser_entry); pop_up_completion_feedback (chooser_entry, _("Invalid path")); } g_error_free (error); return INVALID_INPUT; } have_result = FALSE; if (unique_file) { if (!char_after_cursor_is_directory_separator (chooser_entry)) { gboolean appended; common_prefix = maybe_append_separator_to_file (chooser_entry, unique_file, common_prefix, &appended); if (appended) prefix_expands_the_file_part = TRUE; } g_object_unref (unique_file); if (prefix_expands_the_file_part) result = COMPLETED_UNIQUE; else result = NOTHING_INSERTED_UNIQUE; have_result = TRUE; } else { if (is_complete_not_unique) { result = COMPLETE_BUT_NOT_UNIQUE; have_result = TRUE; } } if (common_prefix) { gint cursor_pos; gint common_prefix_len; gint pos; cursor_pos = gtk_editable_get_position (GTK_EDITABLE (chooser_entry)); common_prefix_len = g_utf8_strlen (common_prefix, -1); pos = chooser_entry->file_part_pos; if (prefix_expands_the_file_part) { chooser_entry->in_change = TRUE; gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), pos, cursor_pos); gtk_editable_insert_text (GTK_EDITABLE (chooser_entry), common_prefix, -1, &pos); chooser_entry->in_change = FALSE; if (highlight) { gtk_editable_select_region (GTK_EDITABLE (chooser_entry), cursor_pos, pos); /* equivalent to cursor_pos + common_prefix_len); */ chooser_entry->has_completion = TRUE; } else gtk_editable_set_position (GTK_EDITABLE (chooser_entry), pos); } else if (!have_result) { result = NOTHING_INSERTED_COMPLETE; have_result = TRUE; } g_free (common_prefix); if (have_result) return result; else return COMPLETED; } else { if (have_result) return result; else return NO_MATCH; } } static void gtk_file_chooser_entry_do_insert_text (GtkEditable *editable, const gchar *new_text, gint new_text_length, gint *position) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable); gint old_text_len; gint insert_pos; old_text_len = gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)); insert_pos = *position; parent_editable_iface->do_insert_text (editable, new_text, new_text_length, position); if (chooser_entry->in_change) return; remove_completion_feedback (chooser_entry); if ((chooser_entry->action == GTK_FILE_CHOOSER_ACTION_OPEN || chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER) && insert_pos == old_text_len) install_start_autocompletion_idle (chooser_entry); } static void clear_completions_if_not_in_change (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->in_change) return; clear_completions (chooser_entry); } static void gtk_file_chooser_entry_do_delete_text (GtkEditable *editable, gint start_pos, gint end_pos) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable); parent_editable_iface->do_delete_text (editable, start_pos, end_pos); clear_completions_if_not_in_change (chooser_entry); } static void gtk_file_chooser_entry_set_position (GtkEditable *editable, gint position) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable); parent_editable_iface->set_position (editable, position); clear_completions_if_not_in_change (chooser_entry); } static void gtk_file_chooser_entry_set_selection_bounds (GtkEditable *editable, gint start_pos, gint end_pos) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (editable); parent_editable_iface->set_selection_bounds (editable, start_pos, end_pos); clear_completions_if_not_in_change (chooser_entry); } static void gtk_file_chooser_entry_grab_focus (GtkWidget *widget) { GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->grab_focus (widget); _gtk_file_chooser_entry_select_filename (GTK_FILE_CHOOSER_ENTRY (widget)); } static void gtk_file_chooser_entry_unmap (GtkWidget *widget) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget); remove_completion_feedback (chooser_entry); GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->unmap (widget); } static gboolean completion_feedback_window_draw_cb (GtkWidget *widget, cairo_t *cr, gpointer data) { /* Stolen from gtk_tooltip_paint_window() */ GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data); gtk_paint_flat_box (gtk_widget_get_style (chooser_entry->completion_feedback_window), cr, GTK_STATE_NORMAL, GTK_SHADOW_OUT, chooser_entry->completion_feedback_window, "tooltip", 0, 0, gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget)); return FALSE; } static void set_invisible_mouse_cursor (GdkWindow *window) { GdkDisplay *display; GdkCursor *cursor; display = gdk_window_get_display (window); cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR); gdk_window_set_cursor (window, cursor); gdk_cursor_unref (cursor); } static void completion_feedback_window_realize_cb (GtkWidget *widget, gpointer data) { /* We hide the mouse cursor inside the completion feedback window, since * GtkEntry hides the cursor when the user types. We don't want the cursor to * come back if the completion feedback ends up where the mouse is. */ set_invisible_mouse_cursor (gtk_widget_get_window (widget)); } static void create_completion_feedback_window (GtkFileChooserEntry *chooser_entry) { /* Stolen from gtk_tooltip_init() */ GtkStyle *style; GtkWidget *alignment; chooser_entry->completion_feedback_window = gtk_window_new (GTK_WINDOW_POPUP); gtk_window_set_type_hint (GTK_WINDOW (chooser_entry->completion_feedback_window), GDK_WINDOW_TYPE_HINT_TOOLTIP); gtk_widget_set_app_paintable (chooser_entry->completion_feedback_window, TRUE); gtk_window_set_resizable (GTK_WINDOW (chooser_entry->completion_feedback_window), FALSE); gtk_widget_set_name (chooser_entry->completion_feedback_window, "gtk-tooltip"); alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0); style = gtk_widget_get_style (chooser_entry->completion_feedback_window); gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), style->ythickness, style->ythickness, style->xthickness, style->xthickness); gtk_container_add (GTK_CONTAINER (chooser_entry->completion_feedback_window), alignment); gtk_widget_show (alignment); g_signal_connect (chooser_entry->completion_feedback_window, "draw", G_CALLBACK (completion_feedback_window_draw_cb), chooser_entry); g_signal_connect (chooser_entry->completion_feedback_window, "realize", G_CALLBACK (completion_feedback_window_realize_cb), chooser_entry); /* FIXME: connect to motion-notify-event, and *show* the cursor when the mouse moves */ chooser_entry->completion_feedback_label = gtk_label_new (NULL); gtk_container_add (GTK_CONTAINER (alignment), chooser_entry->completion_feedback_label); gtk_widget_show (chooser_entry->completion_feedback_label); } static gboolean completion_feedback_timeout_cb (gpointer data) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data); chooser_entry->completion_feedback_timeout_id = 0; remove_completion_feedback (chooser_entry); return FALSE; } static void install_completion_feedback_timer (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->completion_feedback_timeout_id != 0) g_source_remove (chooser_entry->completion_feedback_timeout_id); chooser_entry->completion_feedback_timeout_id = gdk_threads_add_timeout (COMPLETION_FEEDBACK_TIMEOUT_MS, completion_feedback_timeout_cb, chooser_entry); } /* Gets the x position of the text cursor in the entry, in widget coordinates */ static void get_entry_cursor_x (GtkFileChooserEntry *chooser_entry, gint *x_ret) { /* FIXME: see the docs for gtk_entry_get_layout_offsets(). As an exercise for * the reader, you have to implement support for the entry's scroll offset and * RTL layouts and all the fancy Pango stuff. */ PangoLayout *layout; gint layout_x, layout_y; gint layout_index; PangoRectangle strong_pos; gint start_pos, end_pos; layout = gtk_entry_get_layout (GTK_ENTRY (chooser_entry)); gtk_entry_get_layout_offsets (GTK_ENTRY (chooser_entry), &layout_x, &layout_y); gtk_editable_get_selection_bounds (GTK_EDITABLE (chooser_entry), &start_pos, &end_pos); layout_index = gtk_entry_text_index_to_layout_index (GTK_ENTRY (chooser_entry), end_pos); pango_layout_get_cursor_pos (layout, layout_index, &strong_pos, NULL); *x_ret = layout_x + strong_pos.x / PANGO_SCALE; } static void show_completion_feedback_window (GtkFileChooserEntry *chooser_entry) { /* More or less stolen from gtk_tooltip_position() */ GtkRequisition feedback_req; GtkWidget *widget = GTK_WIDGET (chooser_entry); gint entry_x, entry_y; gint cursor_x; GtkAllocation entry_allocation; int feedback_x, feedback_y; gtk_widget_get_preferred_size (chooser_entry->completion_feedback_window, &feedback_req, NULL); gdk_window_get_origin (gtk_widget_get_window (widget), &entry_x, &entry_y); gtk_widget_get_allocation (widget, &entry_allocation); get_entry_cursor_x (chooser_entry, &cursor_x); /* FIXME: fit to the screen if we bump on the screen's edge */ /* cheap "half M-width", use height as approximation of character em-size */ feedback_x = entry_x + cursor_x + entry_allocation.height / 2; feedback_y = entry_y + (entry_allocation.height - feedback_req.height) / 2; gtk_window_move (GTK_WINDOW (chooser_entry->completion_feedback_window), feedback_x, feedback_y); gtk_widget_show (chooser_entry->completion_feedback_window); install_completion_feedback_timer (chooser_entry); } static void pop_up_completion_feedback (GtkFileChooserEntry *chooser_entry, const gchar *feedback) { if (chooser_entry->completion_feedback_window == NULL) create_completion_feedback_window (chooser_entry); gtk_label_set_text (GTK_LABEL (chooser_entry->completion_feedback_label), feedback); show_completion_feedback_window (chooser_entry); } static void remove_completion_feedback (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->completion_feedback_window) gtk_widget_destroy (chooser_entry->completion_feedback_window); chooser_entry->completion_feedback_window = NULL; chooser_entry->completion_feedback_label = NULL; if (chooser_entry->completion_feedback_timeout_id != 0) { g_source_remove (chooser_entry->completion_feedback_timeout_id); chooser_entry->completion_feedback_timeout_id = 0; } } static void explicitly_complete (GtkFileChooserEntry *chooser_entry) { CommonPrefixResult result; g_assert (chooser_entry->current_folder != NULL); g_assert (_gtk_folder_is_finished_loading (chooser_entry->current_folder)); /* FIXME: see what Emacs does in case there is no common prefix, or there is more than one match: * * - If there is a common prefix, insert it (done) * - If there is no common prefix, pop up the suggestion window * - If there are no matches at all, beep and bring up a tooltip (done) * - If the suggestion window is already up, scroll it */ result = append_common_prefix (chooser_entry, FALSE, TRUE); switch (result) { case INVALID_INPUT: /* We already beeped in append_common_prefix(); do nothing here */ break; case NO_MATCH: beep (chooser_entry); /* translators: this text is shown when there are no completions * for something the user typed in a file chooser entry */ pop_up_completion_feedback (chooser_entry, _("No match")); break; case NOTHING_INSERTED_COMPLETE: /* FIXME: pop up the suggestion window or scroll it */ break; case NOTHING_INSERTED_UNIQUE: /* translators: this text is shown when there is exactly one completion * for something the user typed in a file chooser entry */ pop_up_completion_feedback (chooser_entry, _("Sole completion")); break; case COMPLETED: /* Nothing to do */ break; case COMPLETED_UNIQUE: /* Nothing to do */ break; case COMPLETE_BUT_NOT_UNIQUE: /* translators: this text is shown when the text in a file chooser * entry is a complete filename, but could be continued to find * a longer match */ pop_up_completion_feedback (chooser_entry, _("Complete, but not unique")); break; default: g_assert_not_reached (); } } static void start_explicit_completion (GtkFileChooserEntry *chooser_entry) { RefreshStatus status; gboolean is_error; char *feedback_msg; status = refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION); is_error = FALSE; switch (status) { case REFRESH_OK: g_assert (chooser_entry->current_folder_file != NULL); if (chooser_entry->current_folder && _gtk_folder_is_finished_loading (chooser_entry->current_folder)) explicitly_complete (chooser_entry); else { chooser_entry->load_complete_action = LOAD_COMPLETE_EXPLICIT_COMPLETION; /* Translators: this text is shown while the system is searching * for possible completions for filenames in a file chooser entry. */ pop_up_completion_feedback (chooser_entry, _("Completing...")); } break; case REFRESH_INVALID_INPUT: is_error = TRUE; /* Translators: this is shown in the feedback for Tab-completion in a file * chooser's text entry, when the user enters an invalid path. */ feedback_msg = _("Invalid path"); break; case REFRESH_INCOMPLETE_HOSTNAME: is_error = TRUE; if (chooser_entry->local_only) { /* hostnames in a local_only file chooser? user error */ /* Translators: this is shown in the feedback for Tab-completion in a * file chooser's text entry when the user enters something like * "sftp://blahblah" in an app that only supports local filenames. */ feedback_msg = _("Only local files may be selected"); } else { /* Another option is to complete the hostname based on the remote volumes that are mounted */ /* Translators: this is shown in the feedback for Tab-completion in a * file chooser's text entry when the user hasn't entered the first '/' * after a hostname and yet hits Tab (such as "sftp://blahblah[Tab]") */ feedback_msg = _("Incomplete hostname; end it with '/'"); } break; case REFRESH_NONEXISTENT: is_error = TRUE; /* Translators: this is shown in the feedback for Tab-completion in a file * chooser's text entry when the user enters a path that does not exist * and then hits Tab */ feedback_msg = _("Path does not exist"); break; case REFRESH_NOT_LOCAL: is_error = TRUE; feedback_msg = _("Only local files may be selected"); break; default: g_assert_not_reached (); return; } if (is_error) { g_assert (chooser_entry->current_folder_file == NULL); beep (chooser_entry); pop_up_completion_feedback (chooser_entry, feedback_msg); chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING; } } static gboolean gtk_file_chooser_entry_key_press_event (GtkWidget *widget, GdkEventKey *event) { GtkFileChooserEntry *chooser_entry; GtkEditable *editable; GtkEntry *entry; GdkModifierType state; gboolean control_pressed; chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget); editable = GTK_EDITABLE (widget); entry = GTK_ENTRY (widget); if (!chooser_entry->eat_tabs) return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event); control_pressed = FALSE; if (gtk_get_current_event_state (&state)) { if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK) control_pressed = TRUE; } /* This is a bit evil -- it makes Tab never leave the entry. It basically * makes it 'safe' for people to hit. */ if (event->keyval == GDK_KEY_Tab && !control_pressed) { if (chooser_entry->has_completion) gtk_editable_set_position (editable, gtk_entry_get_text_length (entry)); else start_explicit_completion (chooser_entry); return TRUE; } return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->key_press_event (widget, event); } static gboolean gtk_file_chooser_entry_focus_out_event (GtkWidget *widget, GdkEventFocus *event) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (widget); chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING; return GTK_WIDGET_CLASS (_gtk_file_chooser_entry_parent_class)->focus_out_event (widget, event); } static void commit_completion_and_refresh (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->has_completion) { gtk_editable_set_position (GTK_EDITABLE (chooser_entry), gtk_entry_get_text_length (GTK_ENTRY (chooser_entry))); } /* Here we ignore the result of refresh_current_folder_and_file_part(); there is nothing we can do with it */ refresh_current_folder_and_file_part (chooser_entry, REFRESH_WHOLE_TEXT); } static void gtk_file_chooser_entry_activate (GtkEntry *entry) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (entry); commit_completion_and_refresh (chooser_entry); GTK_ENTRY_CLASS (_gtk_file_chooser_entry_parent_class)->activate (entry); } static void discard_completion_store (GtkFileChooserEntry *chooser_entry) { if (!chooser_entry->completion_store) return; gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), NULL); g_object_unref (chooser_entry->completion_store); chooser_entry->completion_store = NULL; } /* Fills the completion store from the contents of the current folder */ static void populate_completion_store (GtkFileChooserEntry *chooser_entry) { GSList *files; GSList *tmp_list; discard_completion_store (chooser_entry); files = _gtk_folder_list_children (chooser_entry->current_folder); chooser_entry->completion_store = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING, G_TYPE_FILE); for (tmp_list = files; tmp_list; tmp_list = tmp_list->next) { GFileInfo *info; GFile *file; file = tmp_list->data; info = _gtk_folder_get_info (chooser_entry->current_folder, file); if (info) { gchar *display_name = g_strdup (g_file_info_get_display_name (info)); GtkTreeIter iter; gboolean dummy; display_name = maybe_append_separator_to_file (chooser_entry, file, display_name, &dummy); gtk_list_store_append (chooser_entry->completion_store, &iter); gtk_list_store_set (chooser_entry->completion_store, &iter, DISPLAY_NAME_COLUMN, display_name, FILE_COLUMN, file, -1); g_object_unref (info); g_free (display_name); } } g_slist_foreach (files, (GFunc) g_object_unref, NULL); g_slist_free (files); gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (chooser_entry->completion_store), DISPLAY_NAME_COLUMN, GTK_SORT_ASCENDING); gtk_entry_completion_set_model (gtk_entry_get_completion (GTK_ENTRY (chooser_entry)), GTK_TREE_MODEL (chooser_entry->completion_store)); } /* When we finish loading the current folder, this function should get called to * perform the deferred autocompletion or explicit completion. */ static void perform_load_complete_action (GtkFileChooserEntry *chooser_entry) { switch (chooser_entry->load_complete_action) { case LOAD_COMPLETE_NOTHING: break; case LOAD_COMPLETE_AUTOCOMPLETE: autocomplete (chooser_entry); break; case LOAD_COMPLETE_EXPLICIT_COMPLETION: explicitly_complete (chooser_entry); break; default: g_assert_not_reached (); } chooser_entry->load_complete_action = LOAD_COMPLETE_NOTHING; } static void finish_folder_load (GtkFileChooserEntry *chooser_entry) { populate_completion_store (chooser_entry); perform_load_complete_action (chooser_entry); gtk_widget_set_tooltip_text (GTK_WIDGET (chooser_entry), NULL); } /* Callback when the current folder finishes loading */ static void finished_loading_cb (GtkFolder *folder, gpointer data) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data); finish_folder_load (chooser_entry); } /* Callback when the current folder's handle gets obtained (not necessarily loaded completely) */ static void load_directory_get_folder_callback (GCancellable *cancellable, GtkFolder *folder, const GError *error, gpointer data) { gboolean cancelled = g_cancellable_is_cancelled (cancellable); GtkFileChooserEntry *chooser_entry = data; if (cancellable != chooser_entry->load_folder_cancellable) goto out; chooser_entry->load_folder_cancellable = NULL; if (error) { LoadCompleteAction old_load_complete_action; old_load_complete_action = chooser_entry->load_complete_action; discard_completion_store (chooser_entry); clear_completions (chooser_entry); if (old_load_complete_action == LOAD_COMPLETE_EXPLICIT_COMPLETION) { /* Since this came from explicit user action (Tab completion), we'll present errors visually */ beep (chooser_entry); pop_up_completion_feedback (chooser_entry, error->message); } discard_current_folder (chooser_entry); } if (cancelled || error) goto out; g_assert (folder != NULL); chooser_entry->current_folder = g_object_ref (folder); discard_completion_store (chooser_entry); if (_gtk_folder_is_finished_loading (chooser_entry->current_folder)) finish_folder_load (chooser_entry); else g_signal_connect (chooser_entry->current_folder, "finished-loading", G_CALLBACK (finished_loading_cb), chooser_entry); out: g_object_unref (chooser_entry); g_object_unref (cancellable); } static RefreshStatus start_loading_current_folder (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->file_system == NULL) return REFRESH_OK; g_assert (chooser_entry->current_folder_file != NULL); g_assert (chooser_entry->current_folder == NULL); g_assert (chooser_entry->load_folder_cancellable == NULL); if (chooser_entry->local_only && !g_file_is_native (chooser_entry->current_folder_file)) { g_object_unref (chooser_entry->current_folder_file); chooser_entry->current_folder_file = NULL; return REFRESH_NOT_LOCAL; } chooser_entry->load_folder_cancellable = _gtk_file_system_get_folder (chooser_entry->file_system, chooser_entry->current_folder_file, "standard::name,standard::display-name,standard::type", load_directory_get_folder_callback, g_object_ref (chooser_entry)); return REFRESH_OK; } static RefreshStatus reload_current_folder (GtkFileChooserEntry *chooser_entry, GFile *folder_file, gboolean force_reload) { gboolean reload = FALSE; g_assert (folder_file != NULL); if (chooser_entry->current_folder_file) { if ((!(g_file_equal (folder_file, chooser_entry->current_folder_file) && chooser_entry->load_folder_cancellable)) || force_reload) { reload = TRUE; discard_current_folder (chooser_entry); discard_loading_and_current_folder_file (chooser_entry); chooser_entry->current_folder_file = g_object_ref (folder_file); } } else { chooser_entry->current_folder_file = g_object_ref (folder_file); reload = TRUE; } if (reload) return start_loading_current_folder (chooser_entry); else return REFRESH_OK; } static RefreshStatus refresh_current_folder_and_file_part (GtkFileChooserEntry *chooser_entry, RefreshMode refresh_mode) { GtkEditable *editable; gint end_pos; gchar *text; GFile *folder_file; gchar *file_part; gsize total_len, file_part_len; gint file_part_pos; GError *error; RefreshStatus result; editable = GTK_EDITABLE (chooser_entry); switch (refresh_mode) { case REFRESH_UP_TO_CURSOR_POSITION: end_pos = gtk_editable_get_position (editable); break; case REFRESH_WHOLE_TEXT: end_pos = gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)); break; default: g_assert_not_reached (); return REFRESH_INVALID_INPUT; } text = gtk_editable_get_chars (editable, 0, end_pos); error = NULL; if (!chooser_entry->file_system || !chooser_entry->base_folder || !_gtk_file_system_parse (chooser_entry->file_system, chooser_entry->base_folder, text, &folder_file, &file_part, &error)) { if (g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_INCOMPLETE_HOSTNAME)) { folder_file = NULL; result = REFRESH_INCOMPLETE_HOSTNAME; } else { folder_file = (chooser_entry->base_folder) ? g_object_ref (chooser_entry->base_folder) : NULL; if (g_error_matches (error, GTK_FILE_CHOOSER_ERROR, GTK_FILE_CHOOSER_ERROR_NONEXISTENT)) result = REFRESH_NONEXISTENT; else result = REFRESH_INVALID_INPUT; } if (error) g_error_free (error); file_part = g_strdup (""); file_part_pos = -1; } else { g_assert (folder_file != NULL); file_part_len = strlen (file_part); total_len = strlen (text); if (total_len > file_part_len) file_part_pos = g_utf8_strlen (text, total_len - file_part_len); else file_part_pos = 0; result = REFRESH_OK; } g_free (text); g_free (chooser_entry->file_part); chooser_entry->file_part = file_part; chooser_entry->file_part_pos = file_part_pos; if (result == REFRESH_OK) { result = reload_current_folder (chooser_entry, folder_file, file_part_pos == -1); } else { discard_current_folder (chooser_entry); discard_loading_and_current_folder_file (chooser_entry); } if (folder_file) g_object_unref (folder_file); g_assert (/* we are OK and we have a current folder file and (loading process or folder handle)... */ ((result == REFRESH_OK) && (chooser_entry->current_folder_file != NULL) && (((chooser_entry->load_folder_cancellable != NULL) && (chooser_entry->current_folder == NULL)) || ((chooser_entry->load_folder_cancellable == NULL) && (chooser_entry->current_folder != NULL)))) /* ... OR we have an error, and we don't have a current folder file nor a loading process nor a folder handle */ || ((result != REFRESH_OK) && (chooser_entry->current_folder_file == NULL) && (chooser_entry->load_folder_cancellable == NULL) && (chooser_entry->current_folder == NULL))); return result; } static void autocomplete (GtkFileChooserEntry *chooser_entry) { if (!(chooser_entry->current_folder != NULL && _gtk_folder_is_finished_loading (chooser_entry->current_folder) && gtk_editable_get_position (GTK_EDITABLE (chooser_entry)) == gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)))) return; append_common_prefix (chooser_entry, TRUE, FALSE); } static void start_autocompletion (GtkFileChooserEntry *chooser_entry) { RefreshStatus status; status = refresh_current_folder_and_file_part (chooser_entry, REFRESH_UP_TO_CURSOR_POSITION); switch (status) { case REFRESH_OK: g_assert (chooser_entry->current_folder_file != NULL); if (chooser_entry->current_folder && _gtk_folder_is_finished_loading (chooser_entry->current_folder)) autocomplete (chooser_entry); else chooser_entry->load_complete_action = LOAD_COMPLETE_AUTOCOMPLETE; break; case REFRESH_INVALID_INPUT: case REFRESH_INCOMPLETE_HOSTNAME: case REFRESH_NONEXISTENT: case REFRESH_NOT_LOCAL: /* We don't beep or anything, since this is autocompletion - the user * didn't request any action explicitly. */ break; default: g_assert_not_reached (); } } static gboolean start_autocompletion_idle_handler (gpointer data) { GtkFileChooserEntry *chooser_entry = GTK_FILE_CHOOSER_ENTRY (data); start_autocompletion (chooser_entry); chooser_entry->start_autocompletion_idle_id = 0; return FALSE; } static void install_start_autocompletion_idle (GtkFileChooserEntry *chooser_entry) { if (chooser_entry->start_autocompletion_idle_id != 0) return; chooser_entry->start_autocompletion_idle_id = gdk_threads_add_idle (start_autocompletion_idle_handler, chooser_entry); } #ifdef G_OS_WIN32 static gint insert_text_callback (GtkFileChooserEntry *chooser_entry, const gchar *new_text, gint new_text_length, gint *position, gpointer user_data) { const gchar *colon = memchr (new_text, ':', new_text_length); gint i; /* Disallow these characters altogether */ for (i = 0; i < new_text_length; i++) { if (new_text[i] == '<' || new_text[i] == '>' || new_text[i] == '"' || new_text[i] == '|' || new_text[i] == '*' || new_text[i] == '?') break; } if (i < new_text_length || /* Disallow entering text that would cause a colon to be anywhere except * after a drive letter. */ (colon != NULL && *position + (colon - new_text) != 1) || (new_text_length > 0 && *position <= 1 && gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)) >= 2 && gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':')) { gtk_widget_error_bell (GTK_WIDGET (chooser_entry)); g_signal_stop_emission_by_name (chooser_entry, "insert_text"); return FALSE; } return TRUE; } static void delete_text_callback (GtkFileChooserEntry *chooser_entry, gint start_pos, gint end_pos, gpointer user_data) { /* If deleting a drive letter, delete the colon, too */ if (start_pos == 0 && end_pos == 1 && gtk_entry_get_text_length (GTK_ENTRY (chooser_entry)) >= 2 && gtk_entry_get_text (GTK_ENTRY (chooser_entry))[1] == ':') { g_signal_handlers_block_by_func (chooser_entry, G_CALLBACK (delete_text_callback), user_data); gtk_editable_delete_text (GTK_EDITABLE (chooser_entry), 0, 1); g_signal_handlers_unblock_by_func (chooser_entry, G_CALLBACK (delete_text_callback), user_data); } } #endif /** * _gtk_file_chooser_entry_new: * @eat_tabs: If %FALSE, allow focus navigation with the tab key. * * Creates a new #GtkFileChooserEntry object. #GtkFileChooserEntry * is an internal implementation widget for the GTK+ file chooser * which is an entry with completion with respect to a * #GtkFileSystem object. * * Return value: the newly created #GtkFileChooserEntry **/ GtkWidget * _gtk_file_chooser_entry_new (gboolean eat_tabs) { GtkFileChooserEntry *chooser_entry; chooser_entry = g_object_new (GTK_TYPE_FILE_CHOOSER_ENTRY, NULL); chooser_entry->eat_tabs = (eat_tabs != FALSE); return GTK_WIDGET (chooser_entry); } /** * _gtk_file_chooser_entry_set_file_system: * @chooser_entry: a #GtkFileChooser * @file_system: an object implementing #GtkFileSystem * * Sets the file system for @chooser_entry. **/ void _gtk_file_chooser_entry_set_file_system (GtkFileChooserEntry *chooser_entry, GtkFileSystem *file_system) { g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry)); g_return_if_fail (GTK_IS_FILE_SYSTEM (file_system)); if (file_system != chooser_entry->file_system) { if (chooser_entry->file_system) g_object_unref (chooser_entry->file_system); chooser_entry->file_system = g_object_ref (file_system); } } /** * _gtk_file_chooser_entry_set_base_folder: * @chooser_entry: a #GtkFileChooserEntry * @file: file for a folder in the chooser entries current file system. * * Sets the folder with respect to which completions occur. **/ void _gtk_file_chooser_entry_set_base_folder (GtkFileChooserEntry *chooser_entry, GFile *file) { if (chooser_entry->base_folder) g_object_unref (chooser_entry->base_folder); chooser_entry->base_folder = file; if (chooser_entry->base_folder) g_object_ref (chooser_entry->base_folder); clear_completions (chooser_entry); _gtk_file_chooser_entry_select_filename (chooser_entry); } /** * _gtk_file_chooser_entry_get_current_folder: * @chooser_entry: a #GtkFileChooserEntry * * Gets the current folder for the #GtkFileChooserEntry. If the * user has only entered a filename, this will be in the base folder * (see _gtk_file_chooser_entry_set_base_folder()), but if the * user has entered a relative or absolute path, then it will * be different. If the user has entered unparsable text, or text which * the entry cannot handle, this will return %NULL. * * Return value: the file for the current folder - this value is owned by the * chooser entry and must not be modified or freed. **/ GFile * _gtk_file_chooser_entry_get_current_folder (GtkFileChooserEntry *chooser_entry) { commit_completion_and_refresh (chooser_entry); return chooser_entry->current_folder_file; } /** * _gtk_file_chooser_entry_get_file_part: * @chooser_entry: a #GtkFileChooserEntry * * Gets the non-folder portion of whatever the user has entered * into the file selector. What is returned is a UTF-8 string, * and if a filename path is needed, g_file_get_child_for_display_name() * must be used * * Return value: the entered filename - this value is owned by the * chooser entry and must not be modified or freed. **/ const gchar * _gtk_file_chooser_entry_get_file_part (GtkFileChooserEntry *chooser_entry) { commit_completion_and_refresh (chooser_entry); return chooser_entry->file_part; } /** * _gtk_file_chooser_entry_set_file_part: * @chooser_entry: a #GtkFileChooserEntry * @file_part: text to display in the entry, in UTF-8 * * Sets the current text shown in the file chooser entry. **/ void _gtk_file_chooser_entry_set_file_part (GtkFileChooserEntry *chooser_entry, const gchar *file_part) { g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry)); chooser_entry->in_change = TRUE; clear_completions (chooser_entry); gtk_entry_set_text (GTK_ENTRY (chooser_entry), file_part); chooser_entry->in_change = FALSE; } /** * _gtk_file_chooser_entry_set_action: * @chooser_entry: a #GtkFileChooserEntry * @action: the action which is performed by the file selector using this entry * * Sets action which is performed by the file selector using this entry. * The #GtkFileChooserEntry will use different completion strategies for * different actions. **/ void _gtk_file_chooser_entry_set_action (GtkFileChooserEntry *chooser_entry, GtkFileChooserAction action) { g_return_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry)); if (chooser_entry->action != action) { GtkEntryCompletion *comp; chooser_entry->action = action; comp = gtk_entry_get_completion (GTK_ENTRY (chooser_entry)); /* FIXME: do we need to actually set the following? */ switch (action) { case GTK_FILE_CHOOSER_ACTION_OPEN: case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER: gtk_entry_completion_set_popup_single_match (comp, FALSE); break; case GTK_FILE_CHOOSER_ACTION_SAVE: case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER: gtk_entry_completion_set_popup_single_match (comp, TRUE); break; } } } /** * _gtk_file_chooser_entry_get_action: * @chooser_entry: a #GtkFileChooserEntry * * Gets the action for this entry. * * Returns: the action **/ GtkFileChooserAction _gtk_file_chooser_entry_get_action (GtkFileChooserEntry *chooser_entry) { g_return_val_if_fail (GTK_IS_FILE_CHOOSER_ENTRY (chooser_entry), GTK_FILE_CHOOSER_ACTION_OPEN); return chooser_entry->action; } gboolean _gtk_file_chooser_entry_get_is_folder (GtkFileChooserEntry *chooser_entry, GFile *file) { gboolean retval = FALSE; if (chooser_entry->current_folder) { GFileInfo *file_info; file_info = _gtk_folder_get_info (chooser_entry->current_folder, file); if (file_info) { retval = _gtk_file_info_consider_as_directory (file_info); g_object_unref (file_info); } } return retval; } /* * _gtk_file_chooser_entry_select_filename: * @chooser_entry: a #GtkFileChooserEntry * * Selects the filename (without the extension) for user edition. */ void _gtk_file_chooser_entry_select_filename (GtkFileChooserEntry *chooser_entry) { const gchar *str, *ext; glong len = -1; if (chooser_entry->action == GTK_FILE_CHOOSER_ACTION_SAVE) { str = gtk_entry_get_text (GTK_ENTRY (chooser_entry)); ext = g_strrstr (str, "."); if (ext) len = g_utf8_pointer_to_offset (str, ext); } gtk_editable_select_region (GTK_EDITABLE (chooser_entry), 0, (gint) len); } void _gtk_file_chooser_entry_set_local_only (GtkFileChooserEntry *chooser_entry, gboolean local_only) { chooser_entry->local_only = local_only; clear_completions (chooser_entry); } gboolean _gtk_file_chooser_entry_get_local_only (GtkFileChooserEntry *chooser_entry) { return chooser_entry->local_only; }