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gem-graph-client/libide/gui/ide-session.c

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WIP: Builder compilé dans /home/jean/Gem-Graph/gem-graph-client/libide/
2023-11-20 23:51:24 +01:00
/* ide-session.c
*
* Copyright 2018-2019 Christian Hergert <chergert@redhat.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 3 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, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#define G_LOG_DOMAIN "ide-session"
#include "config.h"
#include <libpeas/peas.h>
#include <libide-plugins.h>
#include <libide-gui.h>
#include <libide-threading.h>
#include "ide-session-addin.h"
#include "ide-session-private.h"
#include "ide-gui-private.h"
struct _IdeSession
{
IdeObject parent_instance;
GPtrArray *addins;
};
typedef struct
{
GPtrArray *addins;
GVariantBuilder pages_state;
guint active;
IdeGrid *grid;
} Save;
typedef struct
{
GPtrArray *addins;
GVariant *state;
IdeGrid *grid;
GArray *pages;
guint active;
} Restore;
typedef struct
{
guint column;
guint row;
guint depth;
IdeSessionAddin *addin;
GVariant *state;
IdePage *restored_page;
} RestoreItem;
G_DEFINE_FINAL_TYPE (IdeSession, ide_session, IDE_TYPE_OBJECT)
static void
restore_free (Restore *r)
{
g_assert (r != NULL);
g_assert (r->active == 0);
g_clear_pointer (&r->state, g_variant_unref);
g_clear_pointer (&r->pages, g_array_unref);
g_slice_free (Restore, r);
}
static void
save_free (Save *s)
{
g_assert (s != NULL);
g_assert (s->active == 0);
g_slice_free (Save, s);
}
static void
restore_item_clear (RestoreItem *item)
{
g_assert (item != NULL);
g_clear_pointer (&item->state, g_variant_unref);
}
static gint
compare_restore_items (gconstpointer a,
gconstpointer b)
{
const RestoreItem *item_a = a;
const RestoreItem *item_b = b;
gint ret;
if (!(ret = item_a->column - item_b->column))
{
if (!(ret = item_a->row - item_b->row))
ret = item_a->depth - item_b->depth;
}
return ret;
}
static void
collect_addins_cb (IdeExtensionSetAdapter *set,
PeasPluginInfo *plugin_info,
PeasExtension *exten,
gpointer user_data)
{
GPtrArray *ar = user_data;
g_assert (IDE_IS_MAIN_THREAD ());
g_assert (IDE_IS_EXTENSION_SET_ADAPTER (set));
g_assert (plugin_info != NULL);
g_assert (IDE_IS_SESSION_ADDIN (exten));
g_assert (ar != NULL);
g_ptr_array_add (ar, g_object_ref (exten));
}
static IdeSessionAddin *
find_suitable_addin_for_page (IdePage *page,
GPtrArray *addins)
{
for (guint i = 0; i < addins->len; i++)
{
IdeSessionAddin *addin = g_ptr_array_index (addins, i);
if (ide_session_addin_can_save_page (addin, page))
return addin;
}
return NULL;
}
static void
on_session_autosaved_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
IdeSession *session = (IdeSession *)object;
g_autoptr(GError) error = NULL;
g_assert (IDE_IS_MAIN_THREAD ());
g_assert (IDE_IS_SESSION (session));
g_assert (G_IS_ASYNC_RESULT (result));
if (!ide_session_save_finish (session, result, &error))
g_warning ("Couldn't autosave session: %s", error->message);
}
typedef struct {
IdeSession *session;
IdeGrid *grid;
guint session_autosave_source;
} AutosaveGrid;
static void
autosave_grid_free (gpointer data,
GClosure *closure)
{
AutosaveGrid *self = (AutosaveGrid *)data;
if (self->session_autosave_source)
{
g_source_remove (self->session_autosave_source);
self->session_autosave_source = 0;
}
g_slice_free (AutosaveGrid, self);
}
static gboolean
on_session_autosave_timeout_cb (gpointer user_data)
{
AutosaveGrid *autosave_grid = (AutosaveGrid *)user_data;
g_assert (IDE_IS_SESSION (autosave_grid->session));
g_assert (IDE_IS_GRID (autosave_grid->grid));
ide_session_save_async (autosave_grid->session,
autosave_grid->grid,
NULL,
on_session_autosaved_cb,
NULL);
autosave_grid->session_autosave_source = 0;
return G_SOURCE_REMOVE;
}
static void
schedule_session_autosave_timeout (AutosaveGrid *autosave_grid)
{
if (!autosave_grid->session_autosave_source)
{
/* We don't want to be saving the state on each (small) change, so introduce a small
* timeout so changes are grouped when saving.
*/
autosave_grid->session_autosave_source =
g_timeout_add_seconds (30,
on_session_autosave_timeout_cb,
autosave_grid);
}
}
static void
on_autosave_property_changed_cb (GObject *gobject,
GParamSpec *pspec,
gpointer user_data)
{
schedule_session_autosave_timeout ((AutosaveGrid *)user_data);
}
static void
watch_pages_session_autosave (AutosaveGrid *autosave_grid,
guint start_pos,
guint end_pos)
{
GListModel *list = (GListModel *)autosave_grid->grid;
IdeSession *session = (IdeSession *)autosave_grid->session;
g_assert (IDE_IS_SESSION (session));
g_assert (G_IS_LIST_MODEL (list));
g_assert (g_type_is_a (g_list_model_get_item_type (list), IDE_TYPE_PAGE));
g_assert (start_pos <= end_pos);
for (guint i = start_pos; i < end_pos; i++)
{
IdePage *page = IDE_PAGE (g_list_model_get_object (list, i));
IdeSessionAddin *addin;
g_auto(GStrv) props = NULL;
if ((addin = find_suitable_addin_for_page (page, session->addins)) &&
(props = ide_session_addin_get_autosave_properties (addin)))
{
for (guint j = 0; props[j] != NULL; j++)
{
char detailed_signal[256];
g_snprintf (detailed_signal, sizeof detailed_signal, "notify::%s", props[j]);
g_signal_connect (page, detailed_signal, G_CALLBACK (on_autosave_property_changed_cb), autosave_grid);
}
}
}
}
static void
on_grid_items_changed_cb (GListModel *list,
guint position,
guint removed,
guint added,
gpointer user_data)
{
AutosaveGrid *autosave_grid = (AutosaveGrid *)user_data;
g_assert (G_IS_LIST_MODEL (list));
g_assert (g_type_is_a (g_list_model_get_item_type (list), IDE_TYPE_PAGE));
/* We've nothing to do when no page were added here as signals are
* automatically disconnected, so avoid extra work by stopping here early.
*/
if (added > 0)
watch_pages_session_autosave (autosave_grid, position, position + added);
/* Handles autosaving both when closing/opening a page and when moving a page in the grid. */
schedule_session_autosave_timeout (autosave_grid);
}
static void
ide_session_destroy (IdeObject *object)
{
IdeSession *self = (IdeSession *)object;
IDE_ENTRY;
g_assert (IDE_IS_MAIN_THREAD ());
g_assert (IDE_IS_SESSION (self));
g_clear_pointer (&self->addins, g_ptr_array_unref);
IDE_OBJECT_CLASS (ide_session_parent_class)->destroy (object);
IDE_EXIT;
}
static void
ide_session_parent_set (IdeObject *object,
IdeObject *parent)
{
IdeSession *self = (IdeSession *)object;
g_autoptr(IdeExtensionSetAdapter) extension_set = NULL;
g_assert (IDE_IS_MAIN_THREAD ());
g_assert (IDE_IS_SESSION (self));
g_assert (!parent || IDE_IS_OBJECT (parent));
if (parent == NULL)
return;
extension_set = ide_extension_set_adapter_new (IDE_OBJECT (self),
peas_engine_get_default (),
IDE_TYPE_SESSION_ADDIN,
NULL, NULL);
self->addins = g_ptr_array_new_with_free_func (g_object_unref);
ide_extension_set_adapter_foreach (extension_set, collect_addins_cb, self->addins);
}
static void
ide_session_class_init (IdeSessionClass *klass)
{
IdeObjectClass *i_object_class = IDE_OBJECT_CLASS (klass);
i_object_class->destroy = ide_session_destroy;
i_object_class->parent_set = ide_session_parent_set;
}
static void
ide_session_init (IdeSession *self)
{
}
static void
restore_pages_to_grid (GArray *r_items,
IdeGrid *grid)
{
IDE_ENTRY;
for (guint i = 0; i < r_items->len; i++)
{
RestoreItem *item = &g_array_index (r_items, RestoreItem, i);
IdeGridColumn *column;
IdeFrame *stack;
/* Ignore pages that couldn't be restored. */
if (item->restored_page == NULL)
continue;
/* This relies on the fact that the items are sorted. */
column = ide_grid_get_nth_column (grid, item->column);
stack = _ide_grid_get_nth_stack_for_column (grid, column, item->row);
gtk_container_add (GTK_CONTAINER (stack),
GTK_WIDGET (item->restored_page));
}
IDE_EXIT;
}
typedef struct
{
IdeTask *task;
RestoreItem *item;
} RestorePage;
static void
on_session_addin_page_restored_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
IdeSessionAddin *addin = (IdeSessionAddin *)object;
RestorePage *r_page = user_data;
g_autoptr(IdeTask) task = r_page->task;
g_autoptr(GError) error = NULL;
RestoreItem *item = r_page->item;
Restore *r;
IDE_ENTRY;
g_assert (IDE_IS_SESSION_ADDIN (addin));
g_assert (G_IS_ASYNC_RESULT (result));
g_assert (IDE_IS_TASK (task));
r = ide_task_get_task_data (task);
g_assert (r != NULL);
g_assert (r->addins != NULL);
g_assert (r->active > 0);
g_assert (r->state != NULL);
if (!(item->restored_page = ide_session_addin_restore_page_finish (addin, result, &error)))
g_warning ("Couldn't restore page with addin %s: %s", G_OBJECT_TYPE_NAME (addin), error->message);
r->active--;
if (r->active == 0)
{
restore_pages_to_grid (r->pages, r->grid);
ide_task_return_boolean (task, TRUE);
}
IDE_EXIT;
}
static IdeSessionAddin *
get_addin_for_name (GPtrArray *addins,
const char *addin_name)
{
GType addin_type = g_type_from_name (addin_name);
for (guint i = 0; i < addins->len; i++)
{
if (G_OBJECT_TYPE (addins->pdata[i]) == addin_type)
return addins->pdata[i];
}
return NULL;
}
static void
load_restore_items (Restore *r,
GArray *items)
{
GVariantIter iter;
RestoreItem item;
GVariant *page_state = NULL;
g_assert (r != NULL);
g_assert (r->state != NULL);
g_assert (r->addins != NULL);
g_assert (items != NULL);
g_variant_iter_init (&iter, r->state);
while ((page_state = g_variant_iter_next_value (&iter)))
{
const char *addin_name = NULL;
g_variant_lookup (page_state, "column", "u", &item.column);
g_variant_lookup (page_state, "row", "u", &item.row);
g_variant_lookup (page_state, "depth", "u", &item.depth);
g_variant_lookup (page_state, "addin_name", "&s", &addin_name);
g_variant_lookup (page_state, "addin_page_state", "v", &item.state);
item.addin = get_addin_for_name (r->addins, addin_name);
g_array_append_val (items, item);
g_variant_unref (page_state);
}
}
static GVariant *
migrate_pre_api_rework (GVariant *pages_variant)
{
GVariantIter iter;
const char *uri = NULL;
int column, row, depth;
/* Freed in the loop. */
GVariant *search_variant;
GVariantDict version_wrapper_dict;
GVariantBuilder addins_states;
g_variant_dict_init (&version_wrapper_dict, NULL);
/* Migrate old format to first version of the new format. */
g_variant_dict_insert (&version_wrapper_dict, "version", "u", (guint32) 1);
g_variant_builder_init (&addins_states, G_VARIANT_TYPE ("aa{sv}"));
g_debug ("Handling migration of the project's session.gvariant, from prior to the Session API rework…");
g_variant_iter_init (&iter, pages_variant);
while (g_variant_iter_next (&iter, "(&siiiv)", &uri, &column, &row, &depth, &search_variant))
{
GVariantDict addin_state;
GVariantDict editor_session_state;
g_variant_dict_init (&addin_state, NULL);
g_variant_dict_insert (&addin_state, "column", "u", (guint32) column);
g_variant_dict_insert (&addin_state, "row", "u", (guint32) row);
g_variant_dict_insert (&addin_state, "depth", "u", (guint32) depth);
g_variant_dict_insert (&addin_state, "addin_name", "s", "GbpEditorSessionAddin");
/* Since we need to migrate the data for the new API, let's also migrate to a dictionary
* instead of a tuple, for greater flexibility and extensibility in the future.
*/
g_variant_dict_init (&editor_session_state, NULL);
g_variant_dict_insert (&editor_session_state, "uri", "s", uri);
/* Unbox the search_variant since we don't want to bother with multiple levels of variants,
* just have an a{sv}
*/
g_variant_dict_insert_value (&editor_session_state, "search", g_variant_get_variant (search_variant));
g_variant_dict_insert (&addin_state, "addin_page_state", "v", g_variant_dict_end (&editor_session_state));
g_variant_builder_add_value (&addins_states, g_variant_dict_end (&addin_state));
g_variant_unref (search_variant);
}
g_variant_dict_insert_value (&version_wrapper_dict, "data", g_variant_builder_end (&addins_states));
g_debug ("Successfully migrated old session.gvariant to new format.");
return g_variant_take_ref (g_variant_dict_end (&version_wrapper_dict));
}
static GVariant *
load_state_with_migrations (GBytes *bytes)
{
g_autoptr(GVariant) variant = NULL;
/* This is the value of the "data" key in the final @variant. */
g_autoptr(GVariant) migrated_state = NULL;
GVariantDict state;
gboolean fully_migrated = FALSE;
GVariant *old_api_state = NULL;
g_assert (bytes != NULL);
variant = g_variant_take_ref (g_variant_new_from_bytes (G_VARIANT_TYPE_VARDICT, bytes, FALSE));
if (!variant)
{
g_warning ("Couldn't load the array of pages' states from session.gvariant!");
return NULL;
}
g_variant_dict_init (&state, variant);
/* Handle migrations from prior to the Session API rework, where there was only GbpEditorSessionAddin that used it */
old_api_state = g_variant_dict_lookup_value (&state, "GbpEditorSessionAddin", G_VARIANT_TYPE ("a(siiiv)"));
if (old_api_state)
migrated_state = migrate_pre_api_rework (old_api_state);
else
migrated_state = g_steal_pointer (&variant);
while (!fully_migrated)
{
guint32 version;
g_autoptr(GVariant) versioned_data = NULL;
if (!g_variant_lookup (migrated_state, "version", "u", &version))
{
g_warning ("session.gvariant isn't using the old format but doesn't have a version field, so cannot load it!");
fully_migrated = TRUE;
migrated_state = NULL;
break;
}
if (!(versioned_data = g_variant_lookup_value (migrated_state, "data", G_VARIANT_TYPE ("aa{sv}"))))
{
g_warning ("session.gvariant had a version field but the actual versioned data wasn't found, so cannot load it!");
fully_migrated = TRUE;
migrated_state = NULL;
break;
}
switch (version)
{
/* It's the current format so the rest of the code understands it natively. */
case 1:
migrated_state = g_steal_pointer (&migrated_state);
fully_migrated = TRUE;
break;
default:
g_warning ("Version %d of session.gvariant data is not known to Builder!", version);
migrated_state = NULL;
fully_migrated = TRUE;
}
}
if (migrated_state)
/* The current format (version 1) is an `aa{sv}` (array of dictionaries) with the dict's keys being:
* guint32 column, row, depth;
* char *addin_name;
* GVariant *addin_page_state;
*/
return g_variant_lookup_value (migrated_state, "data", NULL);
else
return NULL;
}
static void
on_session_cache_loaded_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GFile *file = (GFile *)object;
g_autoptr(IdeTask) task = user_data;
g_autoptr(GError) error = NULL;
g_autoptr(GBytes) bytes = NULL;
GArray *items = NULL;
GCancellable *cancellable;
Restore *r;
IDE_ENTRY;
g_assert (G_IS_FILE (file));
g_assert (G_IS_ASYNC_RESULT (result));
g_assert (IDE_IS_TASK (task));
r = ide_task_get_task_data (task);
cancellable = ide_task_get_cancellable (task);
g_assert (r != NULL);
g_assert (r->addins != NULL);
g_assert (r->addins->len > 0);
g_assert (r->state == NULL);
g_assert (!cancellable || G_IS_CANCELLABLE (cancellable));
if (!(bytes = g_file_load_bytes_finish (file, result, NULL, &error)))
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
ide_task_return_boolean (task, TRUE);
else
ide_task_return_error (task, g_steal_pointer (&error));
IDE_EXIT;
}
if (g_bytes_get_size (bytes) == 0)
{
ide_task_return_boolean (task, TRUE);
IDE_EXIT;
}
r->state = load_state_with_migrations (bytes);
if (r->state == NULL)
{
ide_task_return_new_error (task,
G_IO_ERROR,
G_IO_ERROR_INVALID_DATA,
"Failed to decode session state");
IDE_EXIT;
}
items = g_array_new (FALSE, FALSE, sizeof (RestoreItem));
g_array_set_clear_func (items, (GDestroyNotify)restore_item_clear);
load_restore_items (r, items);
r->pages = items;
r->active = items->len;
g_array_sort (items, compare_restore_items);
for (guint i = 0; i < items->len; i++)
{
RestoreItem *item = &g_array_index (items, RestoreItem, i);
RestorePage *r_page = g_slice_new0 (RestorePage);
r_page->task = g_object_ref (task);
r_page->item = item;
ide_session_addin_restore_page_async (item->addin,
item->state,
cancellable,
on_session_addin_page_restored_cb,
r_page);
}
if (r->active == 0)
{
ide_task_return_boolean (task, TRUE);
IDE_EXIT;
}
IDE_EXIT;
}
/**
* ide_session_restore_async:
* @self: an #IdeSession
* @grid: an #IdeGrid
* @cancellable: (nullable): a #GCancellable or %NULL
* @callback: the callback to execute upon completion
* @user_data: user data for callback
*
* This function will asynchronously restore the state of the project to
* the point it was last saved (typically upon shutdown). This includes
* open documents and editor splits to the degree possible. Adding support
* for a new page type requires implementing an #IdeSessionAddin.
*
* Since: 41
*/
void
ide_session_restore_async (IdeSession *self,
IdeGrid *grid,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_autoptr(IdeTask) task = NULL;
g_autoptr(GFile) file = NULL;
g_autoptr(GSettings) settings = NULL;
IdeContext *context;
Restore *r;
IDE_ENTRY;
g_return_if_fail (IDE_IS_SESSION (self));
g_return_if_fail (IDE_IS_GRID (grid));
g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
task = ide_task_new (self, cancellable, callback, user_data);
ide_task_set_source_tag (task, ide_session_restore_async);
r = g_slice_new0 (Restore);
r->addins = self->addins;
r->grid = grid;
ide_task_set_task_data (task, r, restore_free);
settings = g_settings_new ("org.gnome.builder");
if (!g_settings_get_boolean (settings, "restore-previous-files"))
{
ide_task_return_boolean (task, TRUE);
return;
}
context = ide_object_get_context (IDE_OBJECT (self));
file = ide_context_cache_file (context, "session.gvariant", NULL);
g_file_load_bytes_async (file,
cancellable,
on_session_cache_loaded_cb,
g_steal_pointer (&task));
IDE_EXIT;
}
gboolean
ide_session_restore_finish (IdeSession *self,
GAsyncResult *result,
GError **error)
{
gboolean ret;
Restore *r;
GListModel *list;
AutosaveGrid *autosave_grid;
IDE_ENTRY;
g_return_val_if_fail (IDE_IS_SESSION (self), FALSE);
g_return_val_if_fail (IDE_IS_TASK (result), FALSE);
r = ide_task_get_task_data (IDE_TASK (result));
g_assert (r != NULL);
list = G_LIST_MODEL (r->grid);
autosave_grid = g_slice_new0 (AutosaveGrid);
autosave_grid->grid = r->grid;
autosave_grid->session = self;
autosave_grid->session_autosave_source = 0;
watch_pages_session_autosave (autosave_grid,
0, g_list_model_get_n_items (list));
g_signal_connect_data (list,
"items-changed",
G_CALLBACK (on_grid_items_changed_cb),
autosave_grid,
autosave_grid_free,
0);
ret = ide_task_propagate_boolean (IDE_TASK (result), error);
IDE_RETURN (ret);
}
static void
on_state_saved_to_cache_file_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
GFile *file = (GFile *)object;
g_autoptr(GError) error = NULL;
g_autoptr(IdeTask) task = user_data;
IDE_ENTRY;
g_assert (G_IS_FILE (file));
g_assert (G_IS_ASYNC_RESULT (result));
g_assert (IDE_IS_TASK (task));
if (!g_file_replace_contents_finish (file, result, NULL, &error))
ide_task_return_error (task, g_steal_pointer (&error));
else
ide_task_return_boolean (task, TRUE);
IDE_EXIT;
}
static void
get_page_position (IdePage *page,
guint *out_column,
guint *out_row,
guint *out_depth)
{
GtkWidget *frame_pages_stack;
GtkWidget *frame;
GtkWidget *grid_column;
GtkWidget *grid;
g_assert (IDE_IS_PAGE (page));
g_assert (out_column != NULL);
g_assert (out_row != NULL);
g_assert (out_depth != NULL);
frame_pages_stack = gtk_widget_get_ancestor (GTK_WIDGET (page), GTK_TYPE_STACK);
frame = gtk_widget_get_ancestor (GTK_WIDGET (frame_pages_stack), IDE_TYPE_FRAME);
grid_column = gtk_widget_get_ancestor (GTK_WIDGET (frame), IDE_TYPE_GRID_COLUMN);
grid = gtk_widget_get_ancestor (GTK_WIDGET (grid_column), IDE_TYPE_GRID);
/* When this page is the currently visible one for this frame, we want to keep it on top when
* restoring so that there's no need to switch back to the pages we were working on. We need to
* do this because the stack's "position" child property only refers to the order in which the
* pages were initially opened, not the most-recently-used order.
*/
if (ide_frame_get_visible_child (IDE_FRAME (frame)) == page)
{
*out_depth = g_list_model_get_n_items (G_LIST_MODEL (frame));
}
else
{
gtk_container_child_get (GTK_CONTAINER (frame_pages_stack), GTK_WIDGET (page),
"position", out_depth,
NULL);
*out_depth = MAX (*out_depth, 0);
}
gtk_container_child_get (GTK_CONTAINER (grid_column), GTK_WIDGET (frame),
"index", out_row,
NULL);
*out_row = MAX (*out_row, 0);
gtk_container_child_get (GTK_CONTAINER (grid), GTK_WIDGET (grid_column),
"index", out_column,
NULL);
*out_column = MAX (*out_column, 0);
}
typedef struct {
IdeTask *task;
IdePage *page;
} SavePage;
static void
save_state_to_disk (IdeSession *self,
IdeTask *task,
GVariantBuilder *pages_state)
{
g_autoptr(GVariant) state = NULL;
g_autoptr(GBytes) bytes = NULL;
g_autoptr(GFile) file = NULL;
GCancellable *cancellable;
IdeContext *context;
GVariantDict final_dict;
IDE_ENTRY;
g_assert (IDE_IS_SESSION (self));
g_assert (IDE_IS_TASK (task));
g_assert (pages_state != NULL);
cancellable = ide_task_get_cancellable (task);
g_variant_dict_init (&final_dict, NULL);
g_variant_dict_insert (&final_dict, "version", "u", (guint32) 1);
g_variant_dict_insert_value (&final_dict, "data", g_variant_builder_end (pages_state));
state = g_variant_ref_sink (g_variant_dict_end (&final_dict));
bytes = g_variant_get_data_as_bytes (state);
#ifdef IDE_ENABLE_TRACE
{
g_autofree char *str = g_variant_print (state, TRUE);
IDE_TRACE_MSG ("Saving session state to %s", str);
}
#endif
context = ide_object_get_context (IDE_OBJECT (self));
file = ide_context_cache_file (context, "session.gvariant", NULL);
if (!ide_task_return_error_if_cancelled (task))
g_file_replace_contents_bytes_async (file,
bytes,
NULL,
FALSE,
G_FILE_CREATE_NONE,
cancellable,
on_state_saved_to_cache_file_cb,
g_object_ref (task));
IDE_EXIT;
}
static void
on_session_addin_page_saved_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
IdeSessionAddin *addin = (IdeSessionAddin *)object;
g_autoptr(GVariant) page_state = NULL;
SavePage *save_page = user_data;
g_autoptr(IdeTask) task = save_page->task;
IdePage *page = save_page->page;
g_autoptr(GError) error = NULL;
IdeSession *self;
Save *s;
IDE_ENTRY;
g_assert (IDE_IS_SESSION_ADDIN (addin));
g_assert (G_IS_ASYNC_RESULT (result));
g_assert (IDE_IS_TASK (task));
self = ide_task_get_source_object (task);
s = ide_task_get_task_data (task);
g_assert (IDE_IS_SESSION (self));
g_assert (s != NULL);
g_assert (s->active > 0);
page_state = ide_session_addin_save_page_finish (addin, result, &error);
if (error != NULL)
g_warning ("Could not save page with addin %s: %s", G_OBJECT_TYPE_NAME (addin), error->message);
if (page_state != NULL)
{
guint frame_column, frame_row, frame_depth;
GVariantDict state_dict;
g_assert (!g_variant_is_floating (page_state));
get_page_position (page, &frame_column, &frame_row, &frame_depth);
g_variant_dict_init (&state_dict, NULL);
g_variant_dict_insert (&state_dict, "column", "u", frame_column);
g_variant_dict_insert (&state_dict, "row", "u", frame_row);
g_variant_dict_insert (&state_dict, "depth", "u", frame_depth);
g_variant_dict_insert (&state_dict, "addin_name", "s", G_OBJECT_TYPE_NAME (addin));
g_variant_dict_insert (&state_dict, "addin_page_state", "v", page_state);
g_variant_builder_add_value (&s->pages_state, g_variant_dict_end (&state_dict));
}
g_slice_free (SavePage, save_page);
s->active--;
if (s->active == 0)
save_state_to_disk (self, task, &s->pages_state);
IDE_EXIT;
}
static void
foreach_page_in_grid_save_cb (GtkWidget *widget,
gpointer user_data)
{
IdePage *page = IDE_PAGE (widget);
IdeTask *task = user_data;
IdeSessionAddin *addin;
SavePage *save_page = NULL;
Save *s;
g_assert (IDE_IS_PAGE (page));
g_assert (IDE_IS_TASK (task));
s = ide_task_get_task_data (task);
g_assert (s != NULL);
g_assert (s->addins != NULL);
if (!(addin = find_suitable_addin_for_page (page, s->addins)))
{
/* It's not a saveable page. */
s->active--;
return;
}
save_page = g_slice_new0 (SavePage);
save_page->task = g_object_ref (task);
save_page->page = page;
ide_session_addin_save_page_async (addin,
page,
ide_task_get_cancellable (task),
on_session_addin_page_saved_cb,
g_steal_pointer (&save_page));
}
/**
* ide_session_save_async:
* @self: an #IdeSession
* @grid: an #IdeGrid
* @cancellable: (nullable): a #GCancellable, or %NULL
* @callback: a callback to execute upon completion
* @user_data: user data for @callback
*
* This function will save the position and content of the pages in the @grid,
* which can then be restored with ide_session_restore_async(), asking the
* content of the pages to the appropriate #IdeSessionAddin.
*
* Since: 41
*/
void
ide_session_save_async (IdeSession *self,
IdeGrid *grid,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_autoptr(IdeTask) task = NULL;
Save *s;
IDE_ENTRY;
g_return_if_fail (IDE_IS_SESSION (self));
g_return_if_fail (IDE_IS_GRID (grid));
g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
task = ide_task_new (self, cancellable, callback, user_data);
ide_task_set_source_tag (task, ide_session_save_async);
s = g_slice_new0 (Save);
s->addins = self->addins;
s->grid = grid;
s->active = ide_grid_count_pages (s->grid);
g_variant_builder_init (&s->pages_state, G_VARIANT_TYPE ("aa{sv}"));
ide_task_set_task_data (task, s, save_free);
ide_grid_foreach_page (s->grid,
foreach_page_in_grid_save_cb,
task);
g_assert (s != NULL);
/* Save the empty pages state there too because it wouldn't have
* been done in foreach_page_in_grid_save_cb() since there's no
* pages to save.
*/
if (s->active == 0)
save_state_to_disk (self, task, &s->pages_state);
IDE_EXIT;
}
gboolean
ide_session_save_finish (IdeSession *self,
GAsyncResult *result,
GError **error)
{
gboolean ret;
IDE_ENTRY;
g_return_val_if_fail (IDE_IS_SESSION (self), FALSE);
g_return_val_if_fail (IDE_IS_TASK (result), FALSE);
ret = ide_task_propagate_boolean (IDE_TASK (result), error);
IDE_RETURN (ret);
}
IdeSession *
ide_session_new (void)
{
return g_object_new (IDE_TYPE_SESSION, NULL);
}