autotools: Properly clean up hacking.html

[geany-mirror.git] / src / project.c

/*
 *      project.c - this file is part of Geany, a fast and lightweight IDE
 *
 *      Copyright 2007-2012 Enrico Tröger <enrico(dot)troeger(at)uvena(dot)de>
 *      Copyright 2007-2012 Nick Treleaven <nick(dot)treleaven(at)btinternet(dot)com>
 *
 *      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.,
 *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/** @file project.h
 * Project Management.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include "project.h"

#include "app.h"
#include "build.h"
#include "dialogs.h"
#include "document.h"
#include "editor.h"
#include "filetypesprivate.h"
#include "geanyobject.h"
#include "keyfile.h"
#include "main.h"
#include "projectprivate.h"
#include "sidebar.h"
#include "stash.h"
#include "support.h"
#include "ui_utils.h"
#include "utils.h"
#include "win32.h"

#include <string.h>
#include <unistd.h>
#include <errno.h>


ProjectPrefs project_prefs = { NULL, FALSE, FALSE };


static GeanyProjectPrivate priv;
static GeanyIndentPrefs indentation;

static GSList *stash_groups = NULL;

static struct
{
        gchar *project_file_path; /* in UTF-8 */
} local_prefs = { NULL };

/* simple struct to keep references to the elements of the properties dialog */
typedef struct _PropertyDialogElements
{
        GtkWidget *dialog;
        GtkWidget *notebook;
        GtkWidget *name;
        GtkWidget *description;
        GtkWidget *file_name;
        GtkWidget *base_path;
        GtkWidget *patterns;
        BuildTableData build_properties;
        gint build_page_num;
        gboolean entries_modified;
} PropertyDialogElements;


static gboolean update_config(const PropertyDialogElements *e, gboolean new_project);
static void on_file_save_button_clicked(GtkButton *button, PropertyDialogElements *e);
static gboolean load_config(const gchar *filename);
static gboolean write_config(gboolean emit_signal);
static void on_name_entry_changed(GtkEditable *editable, PropertyDialogElements *e);
static void on_entries_changed(GtkEditable *editable, PropertyDialogElements *e);
static void on_radio_long_line_custom_toggled(GtkToggleButton *radio, GtkWidget *spin_long_line);
static void apply_editor_prefs(void);
static void init_stash_prefs(void);
static void destroy_project(gboolean open_default);


#define SHOW_ERR(args) dialogs_show_msgbox(GTK_MESSAGE_ERROR, args)
#define SHOW_ERR1(args, more) dialogs_show_msgbox(GTK_MESSAGE_ERROR, args, more)
#define MAX_NAME_LEN 50
/* "projects" is part of the default project base path so be careful when translating
 * please avoid special characters and spaces, look at the source for details or ask Frank */
#define PROJECT_DIR _("projects")


// returns whether we have working documents open
static gboolean have_session_docs(void)
{
        gint npages = gtk_notebook_get_n_pages(GTK_NOTEBOOK(main_widgets.notebook));
        GeanyDocument *doc = document_get_current();

        return npages > 1 || (npages == 1 && (doc->file_name || doc->changed));
}


/* TODO: this should be ported to Glade like the project preferences dialog,
 * then we can get rid of the PropertyDialogElements struct altogether as
 * widgets pointers can be accessed through ui_lookup_widget(). */
void project_new(void)
{
        GtkWidget *vbox;
        GtkWidget *table;
        GtkWidget *image;
        GtkWidget *button;
        GtkWidget *bbox;
        GtkWidget *label;
        gchar *tooltip;
        PropertyDialogElements e = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0, FALSE };

        if (!app->project && project_prefs.project_session)
        {
                /* save session in case the dialog is cancelled */
                configuration_save_default_session();
                /* don't ask if the only doc is an unmodified new doc */
                if (have_session_docs())
                {
                        if (dialogs_show_question(
                                _("Move the current documents into the new project's session?")))
                        {
                                // don't reload session on closing project
                                configuration_clear_default_session();
                        }
                        else
                        {
                                if (!document_close_all())
                                        return;
                        }
                }
        }

        if (! project_ask_close())
                return;

        g_return_if_fail(app->project == NULL);

        e.dialog = gtk_dialog_new_with_buttons(_("New Project"), GTK_WINDOW(main_widgets.window),
                                                                                 GTK_DIALOG_DESTROY_WITH_PARENT,
                                                                                 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, NULL);

        gtk_widget_set_name(e.dialog, "GeanyDialogProject");
        button = ui_button_new_with_image(GTK_STOCK_NEW, _("C_reate"));
        gtk_widget_set_can_default(button, TRUE);
        gtk_window_set_default(GTK_WINDOW(e.dialog), button);
        gtk_dialog_add_action_widget(GTK_DIALOG(e.dialog), button, GTK_RESPONSE_OK);

        vbox = ui_dialog_vbox_new(GTK_DIALOG(e.dialog));

        table = gtk_table_new(3, 2, FALSE);
        gtk_table_set_row_spacings(GTK_TABLE(table), 5);
        gtk_table_set_col_spacings(GTK_TABLE(table), 10);

        label = gtk_label_new(_("Name:"));
        gtk_misc_set_alignment(GTK_MISC(label), 1, 0);

        e.name = gtk_entry_new();
        gtk_entry_set_activates_default(GTK_ENTRY(e.name), TRUE);
        ui_entry_add_clear_icon(GTK_ENTRY(e.name));
        gtk_entry_set_max_length(GTK_ENTRY(e.name), MAX_NAME_LEN);
        gtk_widget_set_tooltip_text(e.name, _("Project name"));

        ui_table_add_row(GTK_TABLE(table), 0, label, e.name, NULL);

        label = gtk_label_new(_("Filename:"));
        gtk_misc_set_alignment(GTK_MISC(label), 1, 0);

        e.file_name = gtk_entry_new();
        gtk_entry_set_activates_default(GTK_ENTRY(e.file_name), TRUE);
        ui_entry_add_clear_icon(GTK_ENTRY(e.file_name));
        gtk_entry_set_width_chars(GTK_ENTRY(e.file_name), 30);
        tooltip = g_strdup_printf(
                _("Path of the file representing the project and storing its settings. "
                "It should normally have the \"%s\" extension."), "."GEANY_PROJECT_EXT);
        gtk_widget_set_tooltip_text(e.file_name, tooltip);
        g_free(tooltip);
        button = gtk_button_new();
        g_signal_connect(button, "clicked", G_CALLBACK(on_file_save_button_clicked), &e);
        image = gtk_image_new_from_stock(GTK_STOCK_OPEN, GTK_ICON_SIZE_BUTTON);
        gtk_container_add(GTK_CONTAINER(button), image);
        bbox = gtk_hbox_new(FALSE, 6);
        gtk_box_pack_start(GTK_BOX(bbox), e.file_name, TRUE, TRUE, 0);
        gtk_box_pack_start(GTK_BOX(bbox), button, FALSE, FALSE, 0);

        ui_table_add_row(GTK_TABLE(table), 1, label, bbox, NULL);

        label = gtk_label_new(_("Base path:"));
        gtk_misc_set_alignment(GTK_MISC(label), 1, 0);

        e.base_path = gtk_entry_new();
        gtk_entry_set_activates_default(GTK_ENTRY(e.base_path), TRUE);
        ui_entry_add_clear_icon(GTK_ENTRY(e.base_path));
        gtk_widget_set_tooltip_text(e.base_path,
                _("Base directory of all files that make up the project. "
                "This can be a new path, or an existing directory tree. "
                "You can use paths relative to the project filename."));
        bbox = ui_path_box_new(_("Choose Project Base Path"),
                GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, GTK_ENTRY(e.base_path));

        ui_table_add_row(GTK_TABLE(table), 2, label, bbox, NULL);

        gtk_box_pack_start(GTK_BOX(vbox), table, TRUE, TRUE, 0);

        /* signals */
        g_signal_connect(e.name, "changed", G_CALLBACK(on_name_entry_changed), &e);
        /* run the callback manually to initialise the base_path and file_name fields */
        on_name_entry_changed(GTK_EDITABLE(e.name), &e);

        g_signal_connect(e.file_name, "changed", G_CALLBACK(on_entries_changed), &e);
        g_signal_connect(e.base_path, "changed", G_CALLBACK(on_entries_changed), &e);

        gtk_widget_show_all(e.dialog);

        while (1)
        {
                if (gtk_dialog_run(GTK_DIALOG(e.dialog)) != GTK_RESPONSE_OK)
                {
                        // any open docs were meant to be moved into the project
                        // rewrite default session because it was cleared
                        if (have_session_docs())
                                configuration_save_default_session();
                        else
                        {
                                // reload any documents that were closed
                                configuration_reload_default_session();
                                configuration_open_files();
                        }
                        break;
                }
                // dialog confirmed
                if (update_config(&e, TRUE))
                {
                        // app->project is now set
                        if (!write_config(TRUE))
                        {
                                SHOW_ERR(_("Project file could not be written"));
                                destroy_project(FALSE);
                        }
                        else
                        {
                                ui_set_statusbar(TRUE, _("Project \"%s\" created."), app->project->name);
                                ui_add_recent_project_file(app->project->file_name);
                                break;
                        }
                }
        }
        gtk_widget_destroy(e.dialog);
        document_new_file_if_non_open();
        ui_focus_current_document();
}


gboolean project_load_file_with_session(const gchar *locale_file_name)
{
        if (project_load_file(locale_file_name))
        {
                if (project_prefs.project_session)
                {
                        configuration_open_files();
                        document_new_file_if_non_open();
                        ui_focus_current_document();
                }
                return TRUE;
        }
        return FALSE;
}


#ifndef G_OS_WIN32
static void run_open_dialog(GtkDialog *dialog)
{
        while (gtk_dialog_run(dialog) == GTK_RESPONSE_ACCEPT)
        {
                gchar *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));

                /* try to load the config */
                if (! project_load_file_with_session(filename))
                {
                        gchar *utf8_filename = utils_get_utf8_from_locale(filename);

                        SHOW_ERR1(_("Project file \"%s\" could not be loaded."), utf8_filename);
                        gtk_widget_grab_focus(GTK_WIDGET(dialog));
                        g_free(utf8_filename);
                        g_free(filename);
                        continue;
                }
                g_free(filename);
                break;
        }
}
#endif


void project_open(void)
{
        const gchar *dir = local_prefs.project_file_path;
#ifdef G_OS_WIN32
        gchar *file;
#else
        GtkWidget *dialog;
        GtkFileFilter *filter;
        gchar *locale_path;
#endif
        if (! project_ask_close()) return;

#ifdef G_OS_WIN32
        file = win32_show_project_open_dialog(main_widgets.window, _("Open Project"), dir, FALSE, TRUE);
        if (file != NULL)
        {
                /* try to load the config */
                if (! project_load_file_with_session(file))
                {
                        SHOW_ERR1(_("Project file \"%s\" could not be loaded."), file);
                }
                g_free(file);
        }
#else

        dialog = gtk_file_chooser_dialog_new(_("Open Project"), GTK_WINDOW(main_widgets.window),
                        GTK_FILE_CHOOSER_ACTION_OPEN,
                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                        GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL);
        gtk_widget_set_name(dialog, "GeanyDialogProject");

        /* set default Open, so pressing enter can open multiple files */
        gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);
        gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE);
        gtk_window_set_skip_taskbar_hint(GTK_WINDOW(dialog), TRUE);
        gtk_window_set_type_hint(GTK_WINDOW(dialog), GDK_WINDOW_TYPE_HINT_DIALOG);
        gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(main_widgets.window));
        gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog), TRUE);

        /* add FileFilters */
        filter = gtk_file_filter_new();
        gtk_file_filter_set_name(filter, _("All files"));
        gtk_file_filter_add_pattern(filter, "*");
        gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter);
        filter = gtk_file_filter_new();
        gtk_file_filter_set_name(filter, _("Project files"));
        gtk_file_filter_add_pattern(filter, "*." GEANY_PROJECT_EXT);
        gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter);
        gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(dialog), filter);

        locale_path = utils_get_locale_from_utf8(dir);
        if (g_file_test(locale_path, G_FILE_TEST_EXISTS) &&
                g_file_test(locale_path, G_FILE_TEST_IS_DIR))
        {
                gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), locale_path);
        }
        g_free(locale_path);

        gtk_widget_show_all(dialog);
        run_open_dialog(GTK_DIALOG(dialog));
        gtk_widget_destroy(GTK_WIDGET(dialog));
#endif
}


/* Called when creating, opening, closing and updating projects. */
static void update_ui(void)
{
        if (main_status.quitting)
                return;

        ui_set_window_title(NULL);
        build_menu_update(NULL);
        // update project name
        sidebar_openfiles_update_all();
}


static void remove_foreach_project_filetype(gpointer data, gpointer user_data)
{
        GeanyFiletype *ft = data;
        if (ft != NULL)
        {
                SETPTR(ft->priv->projfilecmds, NULL);
                SETPTR(ft->priv->projexeccmds, NULL);
                SETPTR(ft->priv->projerror_regex_string, NULL);
                ft->priv->project_list_entry = -1;
        }
}


/* open_default will make function reload default session files on close */
gboolean project_close(gboolean open_default)
{
        g_return_val_if_fail(app->project != NULL, FALSE);

        /* save project session files, etc */
        if (!write_config(FALSE))
                g_warning("Project file \"%s\" could not be written", app->project->file_name);

        if (project_prefs.project_session)
        {
                /* close all existing tabs first */
                if (!document_close_all())
                        return FALSE;
        }
        ui_set_statusbar(TRUE, _("Project \"%s\" closed."), app->project->name);
        destroy_project(open_default);
        return TRUE;
}


static void destroy_project(gboolean open_default)
{
        GSList *node;

        g_return_if_fail(app->project != NULL);

        /* remove project filetypes build entries */
        if (app->project->priv->build_filetypes_list != NULL)
        {
                g_ptr_array_foreach(app->project->priv->build_filetypes_list, remove_foreach_project_filetype, NULL);
                g_ptr_array_free(app->project->priv->build_filetypes_list, FALSE);
        }

        /* remove project non filetype build menu items */
        build_remove_menu_item(GEANY_BCS_PROJ, GEANY_GBG_NON_FT, -1);
        build_remove_menu_item(GEANY_BCS_PROJ, GEANY_GBG_EXEC, -1);

        g_free(app->project->name);
        g_free(app->project->description);
        g_free(app->project->file_name);
        g_free(app->project->base_path);

        g_free(app->project);
        app->project = NULL;

        foreach_slist(node, stash_groups)
                stash_group_free(node->data);

        g_slist_free(stash_groups);
        stash_groups = NULL;

        apply_editor_prefs(); /* ensure that global settings are restored */

        if (project_prefs.project_session)
        {
                /* after closing all tabs let's open the tabs found in the default config */
                if (open_default && cl_options.load_session)
                {
                        configuration_reload_default_session();
                        configuration_open_files();
                        document_new_file_if_non_open();
                        ui_focus_current_document();
                }
        }
        g_signal_emit_by_name(geany_object, "project-close");

        update_ui();
}


/* Shows the file chooser dialog when base path button is clicked
 * FIXME: this should be connected in Glade but 3.8.1 has a bug
 * where it won't pass any objects as user data (#588824). */
G_MODULE_EXPORT void
on_project_properties_base_path_button_clicked(GtkWidget *button,
        GtkWidget *base_path_entry)
{
        GtkWidget *dialog;

        g_return_if_fail(base_path_entry != NULL);
        g_return_if_fail(GTK_IS_WIDGET(base_path_entry));

        dialog = gtk_file_chooser_dialog_new(_("Choose Project Base Path"),
                NULL, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
                NULL);

        if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT)
        {
                gtk_entry_set_text(GTK_ENTRY(base_path_entry),
                        gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog)));
        }

        gtk_widget_destroy(dialog);
}


static void insert_build_page(PropertyDialogElements *e)
{
        GtkWidget *build_table, *label;
        GeanyDocument *doc = document_get_current();
        GeanyFiletype *ft = NULL;

        if (doc != NULL)
                ft = doc->file_type;

        build_table = build_commands_table(doc, GEANY_BCS_PROJ, &(e->build_properties), ft);
        gtk_container_set_border_width(GTK_CONTAINER(build_table), 6);
        label = gtk_label_new(_("Build"));
        e->build_page_num = gtk_notebook_append_page(GTK_NOTEBOOK(e->notebook),
                build_table, label);
}


static void create_properties_dialog(PropertyDialogElements *e)
{
        GtkWidget *wid;
        static guint base_path_button_handler_id = 0;
        static guint radio_long_line_handler_id = 0;

        e->dialog = create_project_dialog();
        e->notebook = ui_lookup_widget(e->dialog, "project_notebook");
        e->file_name = ui_lookup_widget(e->dialog, "label_project_dialog_filename");
        e->name = ui_lookup_widget(e->dialog, "entry_project_dialog_name");
        e->description = ui_lookup_widget(e->dialog, "textview_project_dialog_description");
        e->base_path = ui_lookup_widget(e->dialog, "entry_project_dialog_base_path");
        e->patterns = ui_lookup_widget(e->dialog, "entry_project_dialog_file_patterns");

        gtk_entry_set_max_length(GTK_ENTRY(e->name), MAX_NAME_LEN);

        ui_entry_add_clear_icon(GTK_ENTRY(e->name));
        ui_entry_add_clear_icon(GTK_ENTRY(e->base_path));
        ui_entry_add_clear_icon(GTK_ENTRY(e->patterns));

        /* Workaround for bug in Glade 3.8.1, see comment above signal handler */
        if (base_path_button_handler_id == 0)
        {
                wid = ui_lookup_widget(e->dialog, "button_project_dialog_base_path");
                base_path_button_handler_id =
                        g_signal_connect(wid, "clicked",
                                G_CALLBACK(on_project_properties_base_path_button_clicked),
                                e->base_path);
        }

        /* Same as above, should be in Glade but can't due to bug in 3.8.1 */
        if (radio_long_line_handler_id == 0)
        {
                wid = ui_lookup_widget(e->dialog, "radio_long_line_custom_project");
                radio_long_line_handler_id =
                        g_signal_connect(wid, "toggled",
                                G_CALLBACK(on_radio_long_line_custom_toggled),
                                ui_lookup_widget(e->dialog, "spin_long_line_project"));
        }
}


static void show_project_properties(gboolean show_build)
{
        GeanyProject *p = app->project;
        GtkWidget *widget = NULL;
        GtkWidget *radio_long_line_custom;
        static PropertyDialogElements e;
        GSList *node;

        g_return_if_fail(app->project != NULL);

        if (e.dialog == NULL)
                create_properties_dialog(&e);

        insert_build_page(&e);

        foreach_slist(node, stash_groups)
                stash_group_display(node->data, e.dialog);

        /* fill the elements with the appropriate data */
        gtk_entry_set_text(GTK_ENTRY(e.name), p->name);
        gtk_label_set_text(GTK_LABEL(e.file_name), p->file_name);
        gtk_entry_set_text(GTK_ENTRY(e.base_path), p->base_path);

        radio_long_line_custom = ui_lookup_widget(e.dialog, "radio_long_line_custom_project");
        switch (p->priv->long_line_behaviour)
        {
                case 0: widget = ui_lookup_widget(e.dialog, "radio_long_line_disabled_project"); break;
                case 1: widget = ui_lookup_widget(e.dialog, "radio_long_line_default_project"); break;
                case 2: widget = radio_long_line_custom; break;
        }
        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget), TRUE);

        widget = ui_lookup_widget(e.dialog, "spin_long_line_project");
        gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget), (gdouble)p->priv->long_line_column);
        on_radio_long_line_custom_toggled(GTK_TOGGLE_BUTTON(radio_long_line_custom), widget);

        if (p->description != NULL)
        {       /* set text */
                GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(e.description));
                gtk_text_buffer_set_text(buffer, p->description, -1);
        }

        if (p->file_patterns != NULL)
        {       /* set the file patterns */
                gchar *str;

                str = g_strjoinv(" ", p->file_patterns);
                gtk_entry_set_text(GTK_ENTRY(e.patterns), str);
                g_free(str);
        }

        g_signal_emit_by_name(geany_object, "project-dialog-open", e.notebook);
        gtk_widget_show_all(e.dialog);

        /* note: notebook page must be shown before setting current page */
        if (show_build)
                gtk_notebook_set_current_page(GTK_NOTEBOOK(e.notebook), e.build_page_num);
        else
                gtk_notebook_set_current_page(GTK_NOTEBOOK(e.notebook), 0);

        while (gtk_dialog_run(GTK_DIALOG(e.dialog)) == GTK_RESPONSE_OK)
        {
                if (update_config(&e, FALSE))
                {
                        g_signal_emit_by_name(geany_object, "project-dialog-confirmed", e.notebook);
                        if (!write_config(TRUE))
                                SHOW_ERR(_("Project file could not be written"));
                        else
                        {
                                ui_set_statusbar(TRUE, _("Project \"%s\" saved."), app->project->name);
                                break;
                        }
                }
        }

        build_free_fields(e.build_properties);
        g_signal_emit_by_name(geany_object, "project-dialog-close", e.notebook);
        gtk_notebook_remove_page(GTK_NOTEBOOK(e.notebook), e.build_page_num);
        gtk_widget_hide(e.dialog);
}


void project_properties(void)
{
        show_project_properties(FALSE);
}


void project_build_properties(void)
{
        show_project_properties(TRUE);
}


/* checks whether there is an already open project and asks the user if he wants to close it or
 * abort the current action. Returns FALSE when the current action(the caller) should be cancelled
 * and TRUE if we can go ahead */
gboolean project_ask_close(void)
{
        if (app->project != NULL)
        {
                if (dialogs_show_question_full(NULL, GTK_STOCK_CLOSE, GTK_STOCK_CANCEL,
                        _("Do you want to close it before proceeding?"),
                        _("The '%s' project is open."), app->project->name))
                {
                        return project_close(FALSE);
                }
                else
                        return FALSE;
        }
        else
                return TRUE;
}


static GeanyProject *create_project(void)
{
        GeanyProject *project = g_new0(GeanyProject, 1);

        memset(&priv, 0, sizeof priv);
        priv.indentation = &indentation;
        project->priv = &priv;

        init_stash_prefs();

        project->file_patterns = NULL;

        project->priv->long_line_behaviour = 1 /* use global settings */;
        project->priv->long_line_column = editor_prefs.long_line_column;

        app->project = project;
        return project;
}


/* Verifies data for New & Properties dialogs.
 * Creates app->project if NULL.
 * Returns: FALSE if the user needs to change any data. */
static gboolean update_config(const PropertyDialogElements *e, gboolean new_project)
{
        const gchar *name, *file_name, *base_path;
        gchar *locale_filename;
        gsize name_len;
        gint err_code = 0;
        GeanyProject *p;

        g_return_val_if_fail(e != NULL, TRUE);

        name = gtk_entry_get_text(GTK_ENTRY(e->name));
        name_len = strlen(name);
        if (name_len == 0)
        {
                SHOW_ERR(_("The specified project name is too short."));
                gtk_widget_grab_focus(e->name);
                return FALSE;
        }
        else if (name_len > MAX_NAME_LEN)
        {
                SHOW_ERR1(_("The specified project name is too long (max. %d characters)."), MAX_NAME_LEN);
                gtk_widget_grab_focus(e->name);
                return FALSE;
        }

        if (new_project)
                file_name = gtk_entry_get_text(GTK_ENTRY(e->file_name));
        else
                file_name = gtk_label_get_text(GTK_LABEL(e->file_name));

        if (G_UNLIKELY(EMPTY(file_name)))
        {
                SHOW_ERR(_("You have specified an invalid project filename."));
                gtk_widget_grab_focus(e->file_name);
                return FALSE;
        }

        locale_filename = utils_get_locale_from_utf8(file_name);
        base_path = gtk_entry_get_text(GTK_ENTRY(e->base_path));
        if (!EMPTY(base_path))
        {       /* check whether the given directory actually exists */
                gchar *locale_path = utils_get_locale_from_utf8(base_path);

                if (! g_path_is_absolute(locale_path))
                {       /* relative base path, so add base dir of project file name */
                        gchar *dir = g_path_get_dirname(locale_filename);
                        SETPTR(locale_path, g_build_filename(dir, locale_path, NULL));
                        g_free(dir);
                }

                if (! g_file_test(locale_path, G_FILE_TEST_IS_DIR))
                {
                        gboolean create_dir;

                        create_dir = dialogs_show_question_full(NULL, GTK_STOCK_OK, GTK_STOCK_CANCEL,
                                _("Create the project's base path directory?"),
                                _("The path \"%s\" does not exist."),
                                base_path);

                        if (create_dir)
                                err_code = utils_mkdir(locale_path, TRUE);

                        if (! create_dir || err_code != 0)
                        {
                                if (err_code != 0)
                                        SHOW_ERR1(_("Project base directory could not be created (%s)."),
                                                g_strerror(err_code));
                                gtk_widget_grab_focus(e->base_path);
                                utils_free_pointers(2, locale_path, locale_filename, NULL);
                                return FALSE;
                        }
                }
                g_free(locale_path);
        }
        /* finally test whether the given project file can be written */
        if ((err_code = utils_is_file_writable(locale_filename)) != 0 ||
                (err_code = g_file_test(locale_filename, G_FILE_TEST_IS_DIR) ? EISDIR : 0) != 0)
        {
                SHOW_ERR1(_("Project file could not be written (%s)."), g_strerror(err_code));
                gtk_widget_grab_focus(e->file_name);
                g_free(locale_filename);
                return FALSE;
        }
        else if (new_project && g_file_test(locale_filename, G_FILE_TEST_EXISTS) &&
                         ! dialogs_show_question_full(NULL, _("_Replace"), GTK_STOCK_CANCEL,
                                NULL,
                                _("The file '%s' already exists. Do you want to overwrite it?"),
                                file_name))
        {
                gtk_widget_grab_focus(e->file_name);
                g_free(locale_filename);
                return FALSE;
        }
        g_free(locale_filename);

        if (app->project == NULL)
        {
                create_project();
                new_project = TRUE;
        }
        p = app->project;

        SETPTR(p->name, g_strdup(name));
        SETPTR(p->file_name, g_strdup(file_name));
        /* use "." if base_path is empty */
        SETPTR(p->base_path, g_strdup(!EMPTY(base_path) ? base_path : "./"));

        if (! new_project)      /* save properties specific fields */
        {
                GtkTextIter start, end;
                GtkTextBuffer *buffer;
                GeanyDocument *doc = document_get_current();
                GeanyBuildCommand *oldvalue;
                GeanyFiletype *ft = doc ? doc->file_type : NULL;
                GtkWidget *widget;
                gchar *tmp;
                GString *str;
                GSList *node;

                /* get and set the project description */
                buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(e->description));
                gtk_text_buffer_get_start_iter(buffer, &start);
                gtk_text_buffer_get_end_iter(buffer, &end);
                SETPTR(p->description, g_strdup(gtk_text_buffer_get_text(buffer, &start, &end, FALSE)));

                foreach_slist(node, stash_groups)
                        stash_group_update(node->data, e->dialog);

                /* read the project build menu */
                oldvalue = ft ? ft->priv->projfilecmds : NULL;
                build_read_project(ft, e->build_properties);

                if (ft != NULL && ft->priv->projfilecmds != oldvalue && ft->priv->project_list_entry < 0)
                {
                        if (p->priv->build_filetypes_list == NULL)
                                p->priv->build_filetypes_list = g_ptr_array_new();
                        ft->priv->project_list_entry = p->priv->build_filetypes_list->len;
                        g_ptr_array_add(p->priv->build_filetypes_list, ft);
                }
                build_menu_update(doc);

                widget = ui_lookup_widget(e->dialog, "radio_long_line_disabled_project");
                if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                        p->priv->long_line_behaviour = 0;
                else
                {
                        widget = ui_lookup_widget(e->dialog, "radio_long_line_default_project");
                        if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)))
                                p->priv->long_line_behaviour = 1;
                        else
                                /* "Custom" radio button must be checked */
                                p->priv->long_line_behaviour = 2;
                }

                widget = ui_lookup_widget(e->dialog, "spin_long_line_project");
                p->priv->long_line_column = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(widget));
                apply_editor_prefs();

                /* get and set the project file patterns */
                tmp = g_strdup(gtk_entry_get_text(GTK_ENTRY(e->patterns)));
                g_strfreev(p->file_patterns);
                g_strstrip(tmp);
                str = g_string_new(tmp);
                do {} while (utils_string_replace_all(str, "  ", " "));
                p->file_patterns = g_strsplit(str->str, " ", -1);
                g_string_free(str, TRUE);
                g_free(tmp);
        }

        update_ui();

        return TRUE;
}


#ifndef G_OS_WIN32
static void run_dialog(GtkWidget *dialog, GtkWidget *entry)
{
        /* set filename in the file chooser dialog */
        const gchar *utf8_filename = gtk_entry_get_text(GTK_ENTRY(entry));
        gchar *locale_filename = utils_get_locale_from_utf8(utf8_filename);

        if (g_path_is_absolute(locale_filename))
        {
                if (g_file_test(locale_filename, G_FILE_TEST_EXISTS))
                {
                        /* if the current filename is a directory, we must use
                         * gtk_file_chooser_set_current_folder(which expects a locale filename) otherwise
                         * we end up in the parent directory */
                        if (g_file_test(locale_filename, G_FILE_TEST_IS_DIR))
                                gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), locale_filename);
                        else
                                gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog), utf8_filename);
                }
                else /* if the file doesn't yet exist, use at least the current directory */
                {
                        gchar *locale_dir = g_path_get_dirname(locale_filename);
                        gchar *name = g_path_get_basename(utf8_filename);

                        if (g_file_test(locale_dir, G_FILE_TEST_EXISTS))
                                gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), locale_dir);
                        gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), name);

                        g_free(name);
                        g_free(locale_dir);
                }
        }
        else if (gtk_file_chooser_get_action(GTK_FILE_CHOOSER(dialog)) != GTK_FILE_CHOOSER_ACTION_OPEN)
        {
                gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), utf8_filename);
        }
        g_free(locale_filename);

        /* run it */
        if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT)
        {
                gchar *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
                gchar *tmp_utf8_filename = utils_get_utf8_from_locale(filename);

                gtk_entry_set_text(GTK_ENTRY(entry), tmp_utf8_filename);

                g_free(tmp_utf8_filename);
                g_free(filename);
        }
        gtk_widget_destroy(dialog);
}
#endif


static void on_file_save_button_clicked(GtkButton *button, PropertyDialogElements *e)
{
#ifdef G_OS_WIN32
        gchar *path = win32_show_project_open_dialog(e->dialog, _("Choose Project Filename"),
                                                gtk_entry_get_text(GTK_ENTRY(e->file_name)), TRUE, TRUE);
        if (path != NULL)
        {
                gtk_entry_set_text(GTK_ENTRY(e->file_name), path);
                g_free(path);
        }
#else
        GtkWidget *dialog;

        /* initialise the dialog */
        dialog = gtk_file_chooser_dialog_new(_("Choose Project Filename"), NULL,
                                        GTK_FILE_CHOOSER_ACTION_SAVE,
                                        GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                                        GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT, NULL);
        gtk_widget_set_name(dialog, "GeanyDialogProject");
        gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE);
        gtk_window_set_skip_taskbar_hint(GTK_WINDOW(dialog), TRUE);
        gtk_window_set_type_hint(GTK_WINDOW(dialog), GDK_WINDOW_TYPE_HINT_DIALOG);
        gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT);

        run_dialog(dialog, e->file_name);
#endif
}


/* sets the project base path and the project file name according to the project name */
static void on_name_entry_changed(GtkEditable *editable, PropertyDialogElements *e)
{
        gchar *base_path;
        gchar *file_name;
        gchar *name;
        const gchar *project_dir = local_prefs.project_file_path;

        if (e->entries_modified)
                return;

        name = gtk_editable_get_chars(editable, 0, -1);
        if (!EMPTY(name))
        {
                base_path = g_strconcat(project_dir, G_DIR_SEPARATOR_S,
                        name, G_DIR_SEPARATOR_S, NULL);
                if (project_prefs.project_file_in_basedir)
                        file_name = g_strconcat(project_dir, G_DIR_SEPARATOR_S, name, G_DIR_SEPARATOR_S,
                                name, "." GEANY_PROJECT_EXT, NULL);
                else
                        file_name = g_strconcat(project_dir, G_DIR_SEPARATOR_S,
                                name, "." GEANY_PROJECT_EXT, NULL);
        }
        else
        {
                base_path = g_strconcat(project_dir, G_DIR_SEPARATOR_S, NULL);
                file_name = g_strconcat(project_dir, G_DIR_SEPARATOR_S, NULL);
        }
        g_free(name);

        gtk_entry_set_text(GTK_ENTRY(e->base_path), base_path);
        gtk_entry_set_text(GTK_ENTRY(e->file_name), file_name);

        e->entries_modified = FALSE;

        g_free(base_path);
        g_free(file_name);
}


static void on_entries_changed(GtkEditable *editable, PropertyDialogElements *e)
{
        e->entries_modified = TRUE;
}


static void on_radio_long_line_custom_toggled(GtkToggleButton *radio, GtkWidget *spin_long_line)
{
        gtk_widget_set_sensitive(spin_long_line, gtk_toggle_button_get_active(radio));
}


gboolean project_load_file(const gchar *locale_file_name)
{
        g_return_val_if_fail(locale_file_name != NULL, FALSE);

        if (load_config(locale_file_name))
        {
                gchar *utf8_filename = utils_get_utf8_from_locale(locale_file_name);

                ui_set_statusbar(TRUE, _("Project \"%s\" opened."), app->project->name);

                ui_add_recent_project_file(utf8_filename);
                g_free(utf8_filename);
                return TRUE;
        }
        else
        {
                gchar *utf8_filename = utils_get_utf8_from_locale(locale_file_name);

                ui_set_statusbar(TRUE, _("Project file \"%s\" could not be loaded."), utf8_filename);
                g_free(utf8_filename);
        }
        return FALSE;
}


/* Reads the given filename and creates a new project with the data found in the file.
 * At this point there should not be an already opened project in Geany otherwise it will just
 * return.
 * The filename is expected in the locale encoding. */
static gboolean load_config(const gchar *filename)
{
        GKeyFile *config;
        GeanyProject *p;
        GSList *node;

        /* there should not be an open project */
        g_return_val_if_fail(app->project == NULL && filename != NULL, FALSE);

        config = g_key_file_new();
        if (! g_key_file_load_from_file(config, filename, G_KEY_FILE_NONE, NULL))
        {
                g_key_file_free(config);
                return FALSE;
        }

        p = create_project();

        foreach_slist(node, stash_groups)
                stash_group_load_from_key_file(node->data, config);

        p->name = utils_get_setting_string(config, "project", "name", GEANY_STRING_UNTITLED);
        p->description = utils_get_setting_string(config, "project", "description", "");
        p->file_name = utils_get_utf8_from_locale(filename);
        p->base_path = utils_get_setting_string(config, "project", "base_path", "");
        p->file_patterns = g_key_file_get_string_list(config, "project", "file_patterns", NULL, NULL);

        p->priv->long_line_behaviour = utils_get_setting_integer(config, "long line marker",
                "long_line_behaviour", 1 /* follow global */);
        p->priv->long_line_column = utils_get_setting_integer(config, "long line marker",
                "long_line_column", editor_prefs.long_line_column);
        apply_editor_prefs();

        build_load_menu(config, GEANY_BCS_PROJ, (gpointer)p);
        if (project_prefs.project_session)
        {
                /* save current (non-project) session (it could have been changed since program startup) */
                configuration_save_default_session();
                /* now close all open files */
                document_close_all();
                /* read session files so they can be opened with configuration_open_files() */
                configuration_load_session_files(config, FALSE);
                document_new_file_if_non_open();
                ui_focus_current_document();
        }
        g_signal_emit_by_name(geany_object, "project-open", config);
        g_key_file_free(config);

        update_ui();
        return TRUE;
}


static void apply_editor_prefs(void)
{
        guint i;

        foreach_document(i)
                editor_apply_update_prefs(documents[i]->editor);
}


/* Write the project settings as well as the project session files into its configuration files.
 * emit_signal defines whether the project-save signal should be emitted. When write_config()
 * is called while closing a project, this is used to skip emitting the signal because
 * project-close will be emitted afterwards.
 * Returns: TRUE if project file was written successfully. */
static gboolean write_config(gboolean emit_signal)
{
        GeanyProject *p;
        GKeyFile *config;
        gchar *filename;
        gchar *data;
        gboolean ret = FALSE;
        GSList *node;

        g_return_val_if_fail(app->project != NULL, FALSE);

        p = app->project;

        config = g_key_file_new();
        /* try to load an existing config to keep manually added comments */
        filename = utils_get_locale_from_utf8(p->file_name);
        g_key_file_load_from_file(config, filename, G_KEY_FILE_NONE, NULL);

        foreach_slist(node, stash_groups)
                stash_group_save_to_key_file(node->data, config);

        g_key_file_set_string(config, "project", "name", p->name);
        g_key_file_set_string(config, "project", "base_path", p->base_path);

        if (p->description)
                g_key_file_set_string(config, "project", "description", p->description);
        if (p->file_patterns)
                g_key_file_set_string_list(config, "project", "file_patterns",
                        (const gchar**) p->file_patterns, g_strv_length(p->file_patterns));

        // editor settings
        g_key_file_set_integer(config, "long line marker", "long_line_behaviour", p->priv->long_line_behaviour);
        g_key_file_set_integer(config, "long line marker", "long_line_column", p->priv->long_line_column);

        /* store the session files into the project too */
        if (project_prefs.project_session)
                configuration_save_session_files(config);
        build_save_menu(config, (gpointer)p, GEANY_BCS_PROJ);
        if (emit_signal)
        {
                g_signal_emit_by_name(geany_object, "project-save", config);
        }
        /* write the file */
        data = g_key_file_to_data(config, NULL, NULL);
        ret = (utils_write_file(filename, data) == 0);

        g_free(data);
        g_free(filename);
        g_key_file_free(config);

        return ret;
}


/* Constructs the project's base path which is used for "Make all" and "Execute".
 * The result is an absolute string in UTF-8 encoding which is either the same as
 * base path if it is absolute or it is built out of project file name's dir and base_path.
 * If there is no project or project's base_path is invalid, NULL will be returned.
 * The returned string should be freed when no longer needed. */
gchar *project_get_base_path(void)
{
        GeanyProject *project = app->project;

        if (project && !EMPTY(project->base_path))
        {
                if (g_path_is_absolute(project->base_path))
                        return g_strdup(project->base_path);
                else
                {       /* build base_path out of project file name's dir and base_path */
                        gchar *path;
                        gchar *dir = g_path_get_dirname(project->file_name);

                        if (utils_str_equal(project->base_path, "./"))
                                return dir;

                        path = g_build_filename(dir, project->base_path, NULL);
                        g_free(dir);
                        return path;
                }
        }
        return NULL;
}


/* This is to save project-related global settings, NOT project file settings. */
void project_save_prefs(GKeyFile *config)
{
        GeanyProject *project = app->project;

        if (cl_options.load_session)
        {
                const gchar *utf8_filename = (project == NULL) ? "" : project->file_name;

                g_key_file_set_string(config, "project", "session_file", utf8_filename);
        }
        g_key_file_set_string(config, "project", "project_file_path",
                FALLBACK(local_prefs.project_file_path, ""));
}


void project_load_prefs(GKeyFile *config)
{
        if (cl_options.load_session)
        {
                g_return_if_fail(project_prefs.session_file == NULL);
                project_prefs.session_file = utils_get_setting_string(config, "project",
                        "session_file", "");
        }
        local_prefs.project_file_path = utils_get_setting_string(config, "project",
                "project_file_path", NULL);
        if (local_prefs.project_file_path == NULL)
        {
                local_prefs.project_file_path = g_build_filename(g_get_home_dir(), PROJECT_DIR, NULL);
        }
}


/* Initialize project-related preferences in the Preferences dialog. */
void project_setup_prefs(void)
{
        GtkWidget *path_entry = ui_lookup_widget(ui_widgets.prefs_dialog, "project_file_path_entry");
        GtkWidget *path_btn = ui_lookup_widget(ui_widgets.prefs_dialog, "project_file_path_button");
        static gboolean callback_setup = FALSE;

        g_return_if_fail(local_prefs.project_file_path != NULL);

        gtk_entry_set_text(GTK_ENTRY(path_entry), local_prefs.project_file_path);
        if (! callback_setup)
        {       /* connect the callback only once */
                callback_setup = TRUE;
                ui_setup_open_button_callback(path_btn, NULL,
                        GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, GTK_ENTRY(path_entry));
        }
}


/* Update project-related preferences after using the Preferences dialog. */
void project_apply_prefs(void)
{
        GtkWidget *path_entry = ui_lookup_widget(ui_widgets.prefs_dialog, "project_file_path_entry");
        const gchar *str;

        str = gtk_entry_get_text(GTK_ENTRY(path_entry));
        SETPTR(local_prefs.project_file_path, g_strdup(str));
}


static void add_stash_group(StashGroup *group, gboolean apply_defaults)
{
        GKeyFile *kf;

        stash_groups = g_slist_prepend(stash_groups, group);
        if (!apply_defaults)
                return;

        kf = g_key_file_new();
        stash_group_load_from_key_file(group, kf);
        g_key_file_free(kf);
}


static void init_stash_prefs(void)
{
        StashGroup *group;

        group = stash_group_new("indentation");
        /* copy global defaults */
        indentation = *editor_get_indent_prefs(NULL);
        stash_group_set_use_defaults(group, FALSE);
        add_stash_group(group, FALSE);

        stash_group_add_spin_button_integer(group, &indentation.width,
                "indent_width", 4, "spin_indent_width_project");
        stash_group_add_radio_buttons(group, (gint*)(gpointer)&indentation.type,
                "indent_type", GEANY_INDENT_TYPE_TABS,
                "radio_indent_spaces_project", GEANY_INDENT_TYPE_SPACES,
                "radio_indent_tabs_project", GEANY_INDENT_TYPE_TABS,
                "radio_indent_both_project", GEANY_INDENT_TYPE_BOTH,
                NULL);
        /* This is a 'hidden' pref for backwards-compatibility */
        stash_group_add_integer(group, &indentation.hard_tab_width,
                "indent_hard_tab_width", 8);
        stash_group_add_toggle_button(group, &indentation.detect_type,
                "detect_indent", FALSE, "check_detect_indent_type_project");
        stash_group_add_toggle_button(group, &indentation.detect_width,
                "detect_indent_width", FALSE, "check_detect_indent_width_project");
        stash_group_add_combo_box(group, (gint*)(gpointer)&indentation.auto_indent_mode,
                "indent_mode", GEANY_AUTOINDENT_CURRENTCHARS, "combo_auto_indent_mode_project");

        group = stash_group_new("file_prefs");
        stash_group_add_toggle_button(group, &priv.final_new_line,
                "final_new_line", file_prefs.final_new_line, "check_new_line1");
        stash_group_add_toggle_button(group, &priv.ensure_convert_new_lines,
                "ensure_convert_new_lines", file_prefs.ensure_convert_new_lines, "check_ensure_convert_new_lines1");
        stash_group_add_toggle_button(group, &priv.strip_trailing_spaces,
                "strip_trailing_spaces", file_prefs.strip_trailing_spaces, "check_trailing_spaces1");
        stash_group_add_toggle_button(group, &priv.replace_tabs,
                "replace_tabs", file_prefs.replace_tabs, "check_replace_tabs1");
        add_stash_group(group, TRUE);

        group = stash_group_new("editor");
        stash_group_add_toggle_button(group, &priv.line_wrapping,
                "line_wrapping", editor_prefs.line_wrapping, "check_line_wrapping1");
        stash_group_add_spin_button_integer(group, &priv.line_break_column,
                "line_break_column", editor_prefs.line_break_column, "spin_line_break1");
        stash_group_add_toggle_button(group, &priv.auto_continue_multiline,
                "auto_continue_multiline", editor_prefs.auto_continue_multiline,
                "check_auto_multiline1");
        add_stash_group(group, TRUE);
}


#define COPY_PREF(dest, prefname)\
        (dest.prefname = priv.prefname)

const GeanyFilePrefs *project_get_file_prefs(void)
{
        static GeanyFilePrefs fp;

        if (!app->project)
                return &file_prefs;

        fp = file_prefs;
        COPY_PREF(fp, final_new_line);
        COPY_PREF(fp, ensure_convert_new_lines);
        COPY_PREF(fp, strip_trailing_spaces);
        COPY_PREF(fp, replace_tabs);
        return &fp;
}


void project_init(void)
{
}


void project_finalize(void)
{
}