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gimp/app/widgets/gimpsearchpopup.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpsearchpopup.c
* Copyright (C) 2015 Jehan <jehan at girinstud.io>
*
* 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/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "gimpaction.h"
#include "gimppopup.h"
#include "gimpsearchpopup.h"
#include "gimpuimanager.h"
#include "gimp-intl.h"
enum
{
COLUMN_ICON,
COLUMN_MARKUP,
COLUMN_TOOLTIP,
COLUMN_ACTION,
COLUMN_SENSITIVE,
COLUMN_SECTION,
N_COL
};
enum
{
PROP_0,
PROP_GIMP,
PROP_CALLBACK,
PROP_CALLBACK_DATA
};
static gint window_height = 0;
struct _GimpSearchPopupPrivate
{
Gimp *gimp;
GtkWidget *keyword_entry;
GtkWidget *results_list;
GtkWidget *list_view;
GimpSearchPopupCallback build_results;
gpointer build_results_data;
};
/* GObject handlers */
static void gimp_search_popup_constructed (GObject *object);
static void gimp_search_popup_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_search_popup_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
/* GtkWidget handlers */
static void gimp_search_popup_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
/* GimpPopup handlers */
static void gimp_search_popup_confirm (GimpPopup *popup);
/* Signal handlers on the search entry */
static gboolean keyword_entry_on_key_press_event (GtkWidget *widget,
GdkEventKey *event,
GimpSearchPopup *popup);
static gboolean keyword_entry_on_key_release_event (GtkWidget *widget,
GdkEventKey *event,
GimpSearchPopup *popup);
/* Signal handlers on the results list */
static gboolean results_list_on_key_press_event (GtkWidget *widget,
GdkEventKey *kevent,
GimpSearchPopup *popup);
static void results_list_on_row_activated (GtkTreeView *treeview,
GtkTreePath *path,
GtkTreeViewColumn *col,
GimpSearchPopup *popup);
/* Utils */
static void gimp_search_popup_run_selected (GimpSearchPopup *popup);
static void gimp_search_popup_setup_results (GtkWidget **results_list,
GtkWidget **list_view);
static gchar * gimp_search_popup_find_accel_label (GtkAction *action);
static gboolean gimp_search_popup_view_accel_find_func (GtkAccelKey *key,
GClosure *closure,
gpointer data);
G_DEFINE_TYPE (GimpSearchPopup, gimp_search_popup, GIMP_TYPE_POPUP)
#define parent_class gimp_search_popup_parent_class
static void
gimp_search_popup_class_init (GimpSearchPopupClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GimpPopupClass *popup_class = GIMP_POPUP_CLASS (klass);
GtkBindingSet *binding_set;
object_class->constructed = gimp_search_popup_constructed;
object_class->set_property = gimp_search_popup_set_property;
object_class->get_property = gimp_search_popup_get_property;
widget_class->size_allocate = gimp_search_popup_size_allocate;
popup_class->confirm = gimp_search_popup_confirm;
/**
* GimpSearchPopup:gimp:
*
* The #Gimp object.
*/
g_object_class_install_property (object_class, PROP_GIMP,
g_param_spec_object ("gimp",
NULL, NULL,
G_TYPE_OBJECT,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
/**
* GimpSearchPopup:callback:
*
* The #GimpSearchPopupCallback used to fill in results.
*/
g_object_class_install_property (object_class, PROP_CALLBACK,
g_param_spec_pointer ("callback", NULL, NULL,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
/**
* GimpSearchPopup:callback-data:
*
* The #GPointer fed as last parameter to the #GimpSearchPopupCallback.
*/
g_object_class_install_property (object_class, PROP_CALLBACK_DATA,
g_param_spec_pointer ("callback-data", NULL, NULL,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
/* We don't want space to activate actions in the search widget, since
* we allow search with spaces in it. */
binding_set = gtk_binding_set_by_class (g_type_class_peek (GIMP_TYPE_POPUP));
gtk_binding_entry_remove (binding_set, GDK_KEY_space, 0);
gtk_binding_entry_remove (binding_set, GDK_KEY_KP_Space, 0);
g_type_class_add_private (klass, sizeof (GimpSearchPopupPrivate));
}
static void
gimp_search_popup_init (GimpSearchPopup *search_popup)
{
search_popup->priv = G_TYPE_INSTANCE_GET_PRIVATE (search_popup,
GIMP_TYPE_SEARCH_POPUP,
GimpSearchPopupPrivate);
}
/************ Public Functions ****************/
/**
* gimp_search_popup_new:
* @gimp: #Gimp object.
* @role: the role to give to the #GtkWindow.
* @title: the #GtkWindow title.
* @callback: the #GimpSearchPopupCallback used to fill in results.
* @callback_data: data fed to @callback.
*
* Returns: a new #GimpSearchPopup.
*/
GtkWidget *
gimp_search_popup_new (Gimp *gimp,
const gchar *role,
const gchar *title,
GimpSearchPopupCallback callback,
gpointer callback_data)
{
GtkWidget *widget;
widget = g_object_new (GIMP_TYPE_SEARCH_POPUP,
"type", GTK_WINDOW_TOPLEVEL,
"decorated", TRUE,
"modal", TRUE,
"role", role,
"title", title,
"gimp", gimp,
"callback", callback,
"callback-data", callback_data,
NULL);
return widget;
}
/**
* gimp_search_popup_add_result:
* @popup: the #GimpSearchPopup.
* @action: a #GtkAction to add in results list.
* @section: the section to add @action.
*
* Adds @action in the @popup's results at @section.
* The section only indicates relative order. If you want some items
* to appear before other, simply use lower @section.
*/
void
gimp_search_popup_add_result (GimpSearchPopup *popup,
GtkAction *action,
gint section)
{
GtkTreeIter iter;
GtkTreeIter next_section;
GtkListStore *store;
GtkTreeModel *model;
gchar *markup;
gchar *action_name;
gchar *label;
gchar *escaped_label = NULL;
const gchar *icon_name;
gchar *accel_string;
gchar *escaped_accel = NULL;
gboolean has_shortcut = FALSE;
const gchar *tooltip;
gchar *escaped_tooltip = NULL;
gboolean has_tooltip = FALSE;
label = g_strstrip (gimp_strip_uline (gtk_action_get_label (action)));
if (! label || strlen (label) == 0)
{
g_free (label);
return;
}
escaped_label = g_markup_escape_text (label, -1);
if (GTK_IS_TOGGLE_ACTION (action))
{
if (gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action)))
icon_name = "gtk-ok";
else
icon_name = "gtk-no";
}
else
{
icon_name = gtk_action_get_icon_name (action);
}
accel_string = gimp_search_popup_find_accel_label (action);
if (accel_string != NULL)
{
escaped_accel = g_markup_escape_text (accel_string, -1);
has_shortcut = TRUE;
}
tooltip = gtk_action_get_tooltip (action);
if (tooltip != NULL)
{
escaped_tooltip = g_markup_escape_text (tooltip, -1);
has_tooltip = TRUE;
}
markup = g_strdup_printf ("%s<small>%s%s%s<span weight='light'>%s</span></small>",
escaped_label,
has_shortcut ? " | " : "",
has_shortcut ? escaped_accel : "",
has_tooltip ? "\n" : "",
has_tooltip ? escaped_tooltip : "");
action_name = g_markup_escape_text (gtk_action_get_name (action), -1);
model = gtk_tree_view_get_model (GTK_TREE_VIEW (popup->priv->results_list));
store = GTK_LIST_STORE (model);
if (gtk_tree_model_get_iter_first (model, &next_section))
{
while (TRUE)
{
gint iter_section;
gtk_tree_model_get (model, &next_section,
COLUMN_SECTION, &iter_section, -1);
if (iter_section > section)
{
gtk_list_store_insert_before (store, &iter, &next_section);
break;
}
else if (! gtk_tree_model_iter_next (model, &next_section))
{
gtk_list_store_append (store, &iter);
break;
}
}
}
else
{
gtk_list_store_append (store, &iter);
}
gtk_list_store_set (store, &iter,
COLUMN_ICON, icon_name,
COLUMN_MARKUP, markup,
COLUMN_TOOLTIP, action_name,
COLUMN_ACTION, action,
COLUMN_SECTION, section,
COLUMN_SENSITIVE, gtk_action_is_sensitive (action),
-1);
g_free (accel_string);
g_free (markup);
g_free (action_name);
g_free (label);
g_free (escaped_accel);
g_free (escaped_label);
g_free (escaped_tooltip);
}
/************ Private Functions ****************/
static void
gimp_search_popup_constructed (GObject *object)
{
GimpSearchPopup *popup = GIMP_SEARCH_POPUP (object);
GdkScreen *screen = gdk_screen_get_default ();
GtkWidget *main_vbox;
G_OBJECT_CLASS (parent_class)->constructed (object);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_container_add (GTK_CONTAINER (popup), main_vbox);
gtk_widget_show (main_vbox);
popup->priv->keyword_entry = gtk_entry_new ();
gtk_entry_set_icon_from_icon_name (GTK_ENTRY (popup->priv->keyword_entry),
GTK_ENTRY_ICON_PRIMARY, "edit-find");
gtk_box_pack_start (GTK_BOX (main_vbox),
popup->priv->keyword_entry,
FALSE, FALSE, 0);
gtk_widget_show (popup->priv->keyword_entry);
gimp_search_popup_setup_results (&popup->priv->results_list,
&popup->priv->list_view);
gtk_box_pack_start (GTK_BOX (main_vbox),
popup->priv->list_view, TRUE, TRUE, 0);
gtk_widget_set_events (GTK_WIDGET (object),
GDK_KEY_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_SCROLL_MASK);
g_signal_connect (popup->priv->keyword_entry, "key-press-event",
G_CALLBACK (keyword_entry_on_key_press_event),
popup);
g_signal_connect (popup->priv->keyword_entry, "key-release-event",
G_CALLBACK (keyword_entry_on_key_release_event),
popup);
g_signal_connect (popup->priv->results_list, "key-press-event",
G_CALLBACK (results_list_on_key_press_event),
popup);
g_signal_connect (popup->priv->results_list, "row-activated",
G_CALLBACK (results_list_on_row_activated),
popup);
/* Default size of the search popup showing the result list is half
* the screen. */
if (window_height == 0)
window_height = gdk_screen_get_height (screen) / 2;
}
static void
gimp_search_popup_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpSearchPopup *search_popup = GIMP_SEARCH_POPUP (object);
switch (property_id)
{
case PROP_GIMP:
search_popup->priv->gimp = g_value_get_object (value);
break;
case PROP_CALLBACK:
search_popup->priv->build_results = g_value_get_pointer (value);
break;
case PROP_CALLBACK_DATA:
search_popup->priv->build_results_data = g_value_get_pointer (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_search_popup_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpSearchPopup *search_popup = GIMP_SEARCH_POPUP (object);
switch (property_id)
{
case PROP_GIMP:
g_value_set_object (value, search_popup->priv->gimp);
break;
case PROP_CALLBACK:
g_value_set_pointer (value, search_popup->priv->build_results);
break;
case PROP_CALLBACK_DATA:
g_value_set_pointer (value, search_popup->priv->build_results_data);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
void
gimp_search_popup_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GimpSearchPopup *popup = GIMP_SEARCH_POPUP (widget);
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget,
allocation);
if (gtk_widget_get_visible (widget) &&
gtk_widget_get_visible (popup->priv->list_view))
{
GdkScreen *screen = gdk_screen_get_default ();
/* I save the window height when results are shown so that resizes
* by the user are saved accross searches. */
window_height = MAX (gdk_screen_get_height (screen) / 4,
allocation->height);
}
}
static void
gimp_search_popup_confirm (GimpPopup *popup)
{
GimpSearchPopup *search_popup = GIMP_SEARCH_POPUP (popup);
gimp_search_popup_run_selected (search_popup);
}
static gboolean
keyword_entry_on_key_press_event (GtkWidget *widget,
GdkEventKey *event,
GimpSearchPopup *popup)
{
gboolean event_processed = FALSE;
if (event->keyval == GDK_KEY_Down &&
gtk_widget_get_visible (popup->priv->list_view))
{
GtkTreeView *tree_view = GTK_TREE_VIEW (popup->priv->results_list);
/* When hitting the down key while editing, select directly the
* second item, since the first could have run directly with
* Enter. */
gtk_tree_selection_select_path (gtk_tree_view_get_selection (tree_view),
gtk_tree_path_new_from_string ("1"));
gtk_widget_grab_focus (GTK_WIDGET (popup->priv->results_list));
event_processed = TRUE;
}
return event_processed;
}
static gboolean
keyword_entry_on_key_release_event (GtkWidget *widget,
GdkEventKey *event,
GimpSearchPopup *popup)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (popup->priv->results_list);
gchar *entry_text;
gint width;
/* These keys are already managed by key bindings. */
if (event->keyval == GDK_KEY_Escape ||
event->keyval == GDK_KEY_Return ||
event->keyval == GDK_KEY_KP_Enter ||
event->keyval == GDK_KEY_ISO_Enter)
{
return FALSE;
}
gtk_window_get_size (GTK_WINDOW (popup), &width, NULL);
entry_text = g_strstrip (gtk_editable_get_chars (GTK_EDITABLE (widget), 0, -1));
if (strcmp (entry_text, "") != 0)
{
gtk_window_resize (GTK_WINDOW (popup),
width, window_height);
gtk_list_store_clear (GTK_LIST_STORE (gtk_tree_view_get_model (tree_view)));
gtk_widget_show_all (popup->priv->list_view);
popup->priv->build_results (popup, entry_text,
popup->priv->build_results_data);
gtk_tree_selection_select_path (gtk_tree_view_get_selection (tree_view),
gtk_tree_path_new_from_string ("0"));
}
else if (strcmp (entry_text, "") == 0 && (event->keyval == GDK_KEY_Down))
{
gtk_window_resize (GTK_WINDOW (popup),
width, window_height);
gtk_list_store_clear (GTK_LIST_STORE (gtk_tree_view_get_model (tree_view)));
gtk_widget_show_all (popup->priv->list_view);
popup->priv->build_results (popup, NULL,
popup->priv->build_results_data);
gtk_tree_selection_select_path (gtk_tree_view_get_selection (tree_view),
gtk_tree_path_new_from_string ("0"));
}
else
{
GtkTreeSelection *selection;
GtkTreeModel *model;
GtkTreeIter iter;
selection = gtk_tree_view_get_selection (tree_view);
gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
if (gtk_tree_selection_get_selected (selection, &model, &iter))
{
GtkTreePath *path;
path = gtk_tree_model_get_path (model, &iter);
gtk_tree_selection_unselect_path (selection, path);
gtk_tree_path_free (path);
}
gtk_widget_hide (popup->priv->list_view);
gtk_window_resize (GTK_WINDOW (popup), width, 1);
}
g_free (entry_text);
return TRUE;
}
static gboolean
results_list_on_key_press_event (GtkWidget *widget,
GdkEventKey *kevent,
GimpSearchPopup *popup)
{
/* These keys are already managed by key bindings. */
g_return_val_if_fail (kevent->keyval != GDK_KEY_Escape &&
kevent->keyval != GDK_KEY_Return &&
kevent->keyval != GDK_KEY_KP_Enter &&
kevent->keyval != GDK_KEY_ISO_Enter,
FALSE);
switch (kevent->keyval)
{
case GDK_KEY_Up:
{
gboolean event_processed = FALSE;
GtkTreeSelection *selection;
GtkTreeModel *model;
GtkTreeIter iter;
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (popup->priv->results_list));
gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
if (gtk_tree_selection_get_selected (selection, &model, &iter))
{
GtkTreePath *path = gtk_tree_model_get_path (model, &iter);
if (strcmp (gtk_tree_path_to_string (path), "0") == 0)
{
gint start_pos;
gint end_pos;
gtk_editable_get_selection_bounds (GTK_EDITABLE (popup->priv->keyword_entry),
&start_pos, &end_pos);
gtk_widget_grab_focus ((GTK_WIDGET (popup->priv->keyword_entry)));
gtk_editable_select_region (GTK_EDITABLE (popup->priv->keyword_entry),
start_pos, end_pos);
event_processed = TRUE;
}
gtk_tree_path_free (path);
}
return event_processed;
}
case GDK_KEY_Down:
{
return FALSE;
}
default:
{
gint start_pos;
gint end_pos;
gtk_editable_get_selection_bounds (GTK_EDITABLE (popup->priv->keyword_entry),
&start_pos, &end_pos);
gtk_widget_grab_focus ((GTK_WIDGET (popup->priv->keyword_entry)));
gtk_editable_select_region (GTK_EDITABLE (popup->priv->keyword_entry),
start_pos, end_pos);
gtk_widget_event (GTK_WIDGET (popup->priv->keyword_entry),
(GdkEvent *) kevent);
}
}
return FALSE;
}
static void
results_list_on_row_activated (GtkTreeView *treeview,
GtkTreePath *path,
GtkTreeViewColumn *col,
GimpSearchPopup *popup)
{
gimp_search_popup_run_selected (popup);
}
static void
gimp_search_popup_run_selected (GimpSearchPopup *popup)
{
GtkTreeSelection *selection;
GtkTreeModel *model;
GtkTreeIter iter;
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (popup->priv->results_list));
gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
if (gtk_tree_selection_get_selected (selection, &model, &iter))
{
GtkAction *action;
gtk_tree_model_get (model, &iter, COLUMN_ACTION, &action, -1);
if (gtk_action_is_sensitive (action))
{
gtk_action_activate (action);
/* Close the search popup on activation. */
GIMP_POPUP_CLASS (parent_class)->cancel (GIMP_POPUP (popup));
}
g_object_unref (action);
}
}
static void
gimp_search_popup_setup_results (GtkWidget **results_list,
GtkWidget **list_view)
{
gint wid1 = 100;
GtkListStore *store;
GtkCellRenderer *cell;
GtkTreeViewColumn *column;
*list_view = GTK_WIDGET (gtk_scrolled_window_new (NULL, NULL));
store = gtk_list_store_new (N_COL,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_STRING,
GTK_TYPE_ACTION,
G_TYPE_BOOLEAN,
G_TYPE_INT);
*results_list = GTK_WIDGET (gtk_tree_view_new_with_model (GTK_TREE_MODEL (store)));
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (*results_list), FALSE);
#ifdef GIMP_UNSTABLE
gtk_tree_view_set_tooltip_column (GTK_TREE_VIEW (*results_list),
COLUMN_TOOLTIP);
#endif
cell = gtk_cell_renderer_pixbuf_new ();
column = gtk_tree_view_column_new_with_attributes (NULL, cell,
"icon-name", COLUMN_ICON,
"sensitive", COLUMN_SENSITIVE,
NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (*results_list), column);
gtk_tree_view_column_set_min_width (column, 22);
cell = gtk_cell_renderer_text_new ();
column = gtk_tree_view_column_new_with_attributes (NULL, cell,
"markup", COLUMN_MARKUP,
"sensitive", COLUMN_SENSITIVE,
NULL);
gtk_tree_view_append_column (GTK_TREE_VIEW (*results_list), column);
gtk_tree_view_column_set_max_width (column, wid1);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (*list_view),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (*list_view), *results_list);
g_object_unref (G_OBJECT (store));
}
static gchar *
gimp_search_popup_find_accel_label (GtkAction *action)
{
guint accel_key = 0;
GdkModifierType accel_mask = 0;
GClosure *accel_closure = NULL;
gchar *accel_string;
GtkAccelGroup *accel_group;
GimpUIManager *manager;
manager = gimp_ui_managers_from_name ("<Image>")->data;
accel_group = gtk_ui_manager_get_accel_group (GTK_UI_MANAGER (manager));
accel_closure = gtk_action_get_accel_closure (action);
if (accel_closure)
{
GtkAccelKey *key;
key = gtk_accel_group_find (accel_group,
gimp_search_popup_view_accel_find_func,
accel_closure);
if (key &&
key->accel_key &&
key->accel_flags & GTK_ACCEL_VISIBLE)
{
accel_key = key->accel_key;
accel_mask = key->accel_mods;
}
}
accel_string = gtk_accelerator_get_label (accel_key, accel_mask);
if (strcmp (g_strstrip (accel_string), "") == 0)
{
/* The value returned by gtk_accelerator_get_label() must be freed after use. */
g_free (accel_string);
accel_string = NULL;
}
return accel_string;
}
static gboolean
gimp_search_popup_view_accel_find_func (GtkAccelKey *key,
GClosure *closure,
gpointer data)
{
return (GClosure *) data == closure;
}
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