diff options
Diffstat (limited to 'applets/notification_area/system-tray/na-tray.c')
| -rw-r--r-- | applets/notification_area/system-tray/na-tray.c | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/applets/notification_area/system-tray/na-tray.c b/applets/notification_area/system-tray/na-tray.c new file mode 100644 index 00000000..c2488ecf --- /dev/null +++ b/applets/notification_area/system-tray/na-tray.c @@ -0,0 +1,730 @@ +/* + * Copyright (C) 2002 Red Hat, Inc. + * Copyright (C) 2003-2006 Vincent Untz + * Copyright (C) 2007 Christian Persch + * Copyright (C) 2017 Colomban Wendling <[email protected]> + * + * 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 St, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <config.h> +#include <string.h> + +#include <gtk/gtk.h> + +#include "na-tray-manager.h" +#include "fixedtip.h" + +#include "na-tray.h" + +typedef struct +{ + NaTrayManager *tray_manager; + GSList *all_trays; + GHashTable *icon_table; + GHashTable *tip_table; +} TraysScreen; + +struct _NaTrayPrivate +{ + GdkScreen *screen; + TraysScreen *trays_screen; + + guint idle_redraw_id; + + GtkOrientation orientation; + gint icon_padding; + gint icon_size; +}; + +typedef struct +{ + char *text; + glong id; + glong timeout; +} IconTipBuffer; + +typedef struct +{ + NaTray *tray; /* tray containing the tray icon */ + GtkWidget *icon; /* tray icon sending the message */ + GtkWidget *fixedtip; + guint source_id; + glong id; /* id of the current message */ + GSList *buffer; /* buffered messages */ +} IconTip; + +enum +{ + PROP_0, + PROP_ORIENTATION, + PROP_ICON_PADDING, + PROP_ICON_SIZE, + PROP_SCREEN +}; + +static gboolean initialized = FALSE; +static TraysScreen *trays_screens = NULL; + +static void icon_tip_show_next (IconTip *icontip); + +/* NaTray */ +static void na_host_init (NaHostInterface *iface); +static void na_tray_style_updated (NaHost *host, + GtkStyleContext *context); +static void na_tray_force_redraw (NaHost *host); + +G_DEFINE_TYPE_WITH_CODE (NaTray, na_tray, G_TYPE_OBJECT, + G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL) + G_IMPLEMENT_INTERFACE (NA_TYPE_HOST, na_host_init)) + +static void +na_host_init (NaHostInterface *iface) +{ + iface->force_redraw = na_tray_force_redraw; + iface->style_updated = na_tray_style_updated; +} + +static NaTray * +get_tray (TraysScreen *trays_screen) +{ + if (trays_screen->all_trays == NULL) + return NULL; + + return trays_screen->all_trays->data; +} + +static void +tray_added (NaTrayManager *manager, + NaTrayChild *icon, + TraysScreen *trays_screen) +{ + NaTray *tray; + NaTrayPrivate *priv; + + tray = get_tray (trays_screen); + if (tray == NULL) + return; + + priv = tray->priv; + + g_assert (priv->trays_screen == trays_screen); + + g_hash_table_insert (trays_screen->icon_table, icon, tray); + + na_host_emit_item_added (NA_HOST (tray), NA_ITEM (icon)); + + gtk_widget_show (GTK_WIDGET (icon)); +} + +static void +tray_removed (NaTrayManager *manager, + NaTrayChild *icon, + TraysScreen *trays_screen) +{ + NaTray *tray; + + tray = g_hash_table_lookup (trays_screen->icon_table, icon); + if (tray == NULL) + return; + + g_assert (tray->priv->trays_screen == trays_screen); + + na_host_emit_item_removed (NA_HOST (tray), NA_ITEM (icon)); + + g_hash_table_remove (trays_screen->icon_table, icon); + /* this will also destroy the tip associated to this icon */ + g_hash_table_remove (trays_screen->tip_table, icon); +} + +static void +icon_tip_buffer_free (gpointer data, + gpointer userdata) +{ + IconTipBuffer *buffer; + + buffer = data; + + g_free (buffer->text); + buffer->text = NULL; + + g_free (buffer); +} + +static void +icon_tip_free (gpointer data) +{ + IconTip *icontip; + + if (data == NULL) + return; + + icontip = data; + + if (icontip->fixedtip != NULL) + gtk_widget_destroy (GTK_WIDGET (icontip->fixedtip)); + icontip->fixedtip = NULL; + + if (icontip->source_id != 0) + g_source_remove (icontip->source_id); + icontip->source_id = 0; + + if (icontip->buffer != NULL) + { + g_slist_foreach (icontip->buffer, icon_tip_buffer_free, NULL); + g_slist_free (icontip->buffer); + } + icontip->buffer = NULL; + + g_free (icontip); +} + +static int +icon_tip_buffer_compare (gconstpointer a, + gconstpointer b) +{ + const IconTipBuffer *buffer_a = a; + const IconTipBuffer *buffer_b = b; + + if (buffer_a == NULL || buffer_b == NULL) + return !(buffer_a == buffer_b); + + return buffer_a->id - buffer_b->id; +} + +static void +icon_tip_show_next_clicked (GtkWidget *widget, + gpointer data) +{ + icon_tip_show_next ((IconTip *) data); +} + +static gboolean +icon_tip_show_next_timeout (gpointer data) +{ + IconTip *icontip = (IconTip *) data; + + icon_tip_show_next (icontip); + + return FALSE; +} + +static void +icon_tip_show_next (IconTip *icontip) +{ + IconTipBuffer *buffer; + + if (icontip->buffer == NULL) + { + /* this will also destroy the tip window */ + g_hash_table_remove (icontip->tray->priv->trays_screen->tip_table, + icontip->icon); + return; + } + + if (icontip->source_id != 0) + g_source_remove (icontip->source_id); + icontip->source_id = 0; + + buffer = icontip->buffer->data; + icontip->buffer = g_slist_remove (icontip->buffer, buffer); + + if (icontip->fixedtip == NULL) + { + icontip->fixedtip = na_fixed_tip_new (icontip->icon, + gtk_orientable_get_orientation (GTK_ORIENTABLE (icontip->tray))); + + g_signal_connect (icontip->fixedtip, "clicked", + G_CALLBACK (icon_tip_show_next_clicked), icontip); + } + + na_fixed_tip_set_markup (icontip->fixedtip, buffer->text); + + if (!gtk_widget_get_mapped (icontip->fixedtip)) + gtk_widget_show (icontip->fixedtip); + + icontip->id = buffer->id; + + if (buffer->timeout > 0) + icontip->source_id = g_timeout_add_seconds (buffer->timeout, + icon_tip_show_next_timeout, + icontip); + + icon_tip_buffer_free (buffer, NULL); +} + +static void +message_sent (NaTrayManager *manager, + GtkWidget *icon, + const char *text, + glong id, + glong timeout, + TraysScreen *trays_screen) +{ + IconTip *icontip; + IconTipBuffer find_buffer; + IconTipBuffer *buffer; + gboolean show_now; + + icontip = g_hash_table_lookup (trays_screen->tip_table, icon); + + find_buffer.id = id; + if (icontip && + (icontip->id == id || + g_slist_find_custom (icontip->buffer, &find_buffer, + icon_tip_buffer_compare) != NULL)) + /* we already have this message, so ignore it */ + /* FIXME: in an ideal world, we'd remember all the past ids and ignore them + * too */ + return; + + show_now = FALSE; + + if (icontip == NULL) + { + NaTray *tray; + + tray = g_hash_table_lookup (trays_screen->icon_table, icon); + if (tray == NULL) + { + /* We don't know about the icon sending the message, so ignore it. + * But this should never happen since NaTrayManager shouldn't send + * us the message if there's no socket for it. */ + g_critical ("Ignoring a message sent by a tray icon " + "we don't know: \"%s\".\n", text); + return; + } + + icontip = g_new0 (IconTip, 1); + icontip->tray = tray; + icontip->icon = icon; + + g_hash_table_insert (trays_screen->tip_table, icon, icontip); + + show_now = TRUE; + } + + buffer = g_new0 (IconTipBuffer, 1); + + buffer->text = g_strdup (text); + buffer->id = id; + buffer->timeout = timeout; + + icontip->buffer = g_slist_append (icontip->buffer, buffer); + + if (show_now) + icon_tip_show_next (icontip); +} + +static void +message_cancelled (NaTrayManager *manager, + GtkWidget *icon, + glong id, + TraysScreen *trays_screen) +{ + IconTip *icontip; + IconTipBuffer find_buffer; + GSList *cancel_buffer_l; + IconTipBuffer *cancel_buffer; + + icontip = g_hash_table_lookup (trays_screen->tip_table, icon); + if (icontip == NULL) + return; + + if (icontip->id == id) + { + icon_tip_show_next (icontip); + return; + } + + find_buffer.id = id; + cancel_buffer_l = g_slist_find_custom (icontip->buffer, &find_buffer, + icon_tip_buffer_compare); + if (cancel_buffer_l == NULL) + return; + + cancel_buffer = cancel_buffer_l->data; + icon_tip_buffer_free (cancel_buffer, NULL); + + icontip->buffer = g_slist_remove_link (icontip->buffer, cancel_buffer_l); + g_slist_free_1 (cancel_buffer_l); +} + +static void +update_orientation_for_messages (gpointer key, + gpointer value, + gpointer data) +{ + NaTray *tray; + IconTip *icontip; + + if (value == NULL) + return; + + icontip = value; + tray = data; + if (icontip->tray != tray) + return; + + if (icontip->fixedtip) + na_fixed_tip_set_orientation (icontip->fixedtip, tray->priv->orientation); +} + +static void +update_size_and_orientation (NaTray *tray) +{ + NaTrayPrivate *priv = tray->priv; + + /* This only happens when setting the property during object construction */ + if (!priv->trays_screen) + return; + + g_hash_table_foreach (priv->trays_screen->tip_table, + update_orientation_for_messages, tray); + + if (get_tray (priv->trays_screen) == tray) + na_tray_manager_set_orientation (priv->trays_screen->tray_manager, + priv->orientation); +} + +static void +na_tray_init (NaTray *tray) +{ + NaTrayPrivate *priv; + + priv = tray->priv = G_TYPE_INSTANCE_GET_PRIVATE (tray, NA_TYPE_TRAY, NaTrayPrivate); + + priv->screen = NULL; + priv->orientation = GTK_ORIENTATION_HORIZONTAL; + priv->icon_padding = 0; + priv->icon_size = 0; +} + +static GObject * +na_tray_constructor (GType type, + guint n_construct_properties, + GObjectConstructParam *construct_params) +{ + GObject *object; + NaTray *tray; + NaTrayPrivate *priv; + int screen_number; + + object = G_OBJECT_CLASS (na_tray_parent_class)->constructor (type, + n_construct_properties, + construct_params); + tray = NA_TRAY (object); + priv = tray->priv; + + g_assert (priv->screen != NULL); + + if (!initialized) + { + trays_screens = g_new0 (TraysScreen, 1); + initialized = TRUE; + } + + screen_number = gdk_screen_get_number (priv->screen); + + if (trays_screens [screen_number].tray_manager == NULL) + { + NaTrayManager *tray_manager; + + tray_manager = na_tray_manager_new (); + + if (na_tray_manager_manage_screen (tray_manager, priv->screen)) + { + trays_screens [screen_number].tray_manager = tray_manager; + + g_signal_connect (tray_manager, "tray_icon_added", + G_CALLBACK (tray_added), + &trays_screens [screen_number]); + g_signal_connect (tray_manager, "tray_icon_removed", + G_CALLBACK (tray_removed), + &trays_screens [screen_number]); + g_signal_connect (tray_manager, "message_sent", + G_CALLBACK (message_sent), + &trays_screens [screen_number]); + g_signal_connect (tray_manager, "message_cancelled", + G_CALLBACK (message_cancelled), + &trays_screens [screen_number]); + + trays_screens [screen_number].icon_table = g_hash_table_new (NULL, + NULL); + trays_screens [screen_number].tip_table = g_hash_table_new_full ( + NULL, + NULL, + NULL, + icon_tip_free); + } + else + { + g_printerr ("System tray didn't get the system tray manager selection for screen %d\n", + screen_number); + g_object_unref (tray_manager); + } + } + + priv->trays_screen = &trays_screens [screen_number]; + trays_screens [screen_number].all_trays = g_slist_append (trays_screens [screen_number].all_trays, + tray); + + update_size_and_orientation (tray); + + return object; +} + +static void +na_tray_dispose (GObject *object) +{ + NaTray *tray = NA_TRAY (object); + NaTrayPrivate *priv = tray->priv; + TraysScreen *trays_screen = priv->trays_screen; + + if (trays_screen != NULL) + { + trays_screen->all_trays = g_slist_remove (trays_screen->all_trays, tray); + + if (trays_screen->all_trays == NULL) + { + /* Make sure we drop the manager selection */ + g_object_unref (trays_screen->tray_manager); + trays_screen->tray_manager = NULL; + + g_hash_table_destroy (trays_screen->icon_table); + trays_screen->icon_table = NULL; + + g_hash_table_destroy (trays_screen->tip_table); + trays_screen->tip_table = NULL; + } + else + { + NaTray *new_tray; + + new_tray = get_tray (trays_screen); + if (new_tray != NULL) + na_tray_manager_set_orientation (trays_screen->tray_manager, + gtk_orientable_get_orientation (GTK_ORIENTABLE (new_tray))); + } + } + + priv->trays_screen = NULL; + + if (priv->idle_redraw_id != 0) + { + g_source_remove (priv->idle_redraw_id); + priv->idle_redraw_id = 0; + } + + G_OBJECT_CLASS (na_tray_parent_class)->dispose (object); +} + +static void +na_tray_set_orientation (NaTray *tray, + GtkOrientation orientation) +{ + NaTrayPrivate *priv = tray->priv; + + if (orientation == priv->orientation) + return; + + priv->orientation = orientation; + + update_size_and_orientation (tray); +} + +static void +na_tray_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + NaTray *tray = NA_TRAY (object); + NaTrayPrivate *priv = tray->priv; + + switch (prop_id) + { + case PROP_ORIENTATION: + na_tray_set_orientation (tray, g_value_get_enum (value)); + break; + case PROP_ICON_PADDING: + na_tray_set_padding (tray, g_value_get_int (value)); + break; + case PROP_ICON_SIZE: + na_tray_set_icon_size (tray, g_value_get_int (value)); + break; + case PROP_SCREEN: + priv->screen = g_value_get_object (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +na_tray_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + NaTray *tray = NA_TRAY (object); + NaTrayPrivate *priv = tray->priv; + + switch (prop_id) + { + case PROP_ORIENTATION: + g_value_set_enum (value, tray->priv->orientation); + break; + case PROP_ICON_PADDING: + g_value_set_int (value, tray->priv->icon_padding); + break; + case PROP_ICON_SIZE: + g_value_set_int (value, tray->priv->icon_size); + break; + case PROP_SCREEN: + g_value_set_object (value, priv->screen); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +na_tray_class_init (NaTrayClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + gobject_class->constructor = na_tray_constructor; + gobject_class->set_property = na_tray_set_property; + gobject_class->get_property = na_tray_get_property; + gobject_class->dispose = na_tray_dispose; + + g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation"); + + g_object_class_override_property (gobject_class, PROP_ICON_PADDING, "icon-padding"); + g_object_class_override_property (gobject_class, PROP_ICON_SIZE, "icon-size"); + + g_object_class_install_property + (gobject_class, + PROP_SCREEN, + g_param_spec_object ("screen", "screen", "screen", + GDK_TYPE_SCREEN, + G_PARAM_WRITABLE | + G_PARAM_CONSTRUCT_ONLY | + G_PARAM_STATIC_NAME | + G_PARAM_STATIC_NICK | + G_PARAM_STATIC_BLURB)); + + g_type_class_add_private (gobject_class, sizeof (NaTrayPrivate)); +} + +NaHost * +na_tray_new_for_screen (GdkScreen *screen, + GtkOrientation orientation) +{ + return g_object_new (NA_TYPE_TRAY, + "screen", screen, + "orientation", orientation, + NULL); +} + +void +na_tray_set_padding (NaTray *tray, + gint padding) +{ + NaTrayPrivate *priv = tray->priv; + + priv->icon_padding = padding; + if (get_tray (priv->trays_screen) == tray) + na_tray_manager_set_padding (priv->trays_screen->tray_manager, padding); +} + +void +na_tray_set_icon_size (NaTray *tray, + gint size) +{ + NaTrayPrivate *priv = tray->priv; + + priv->icon_size = size; + if (get_tray (priv->trays_screen) == tray) + na_tray_manager_set_icon_size (priv->trays_screen->tray_manager, size); +} + +static void +na_tray_set_colors (NaTray *tray, + GdkRGBA *fg, + GdkRGBA *error, + GdkRGBA *warning, + GdkRGBA *success) +{ + NaTrayPrivate *priv = tray->priv; + + if (get_tray (priv->trays_screen) == tray) + na_tray_manager_set_colors (priv->trays_screen->tray_manager, fg, error, warning, success); +} + +static void +na_tray_style_updated (NaHost *host, + GtkStyleContext *context) +{ + GdkRGBA fg; + GdkRGBA error; + GdkRGBA warning; + GdkRGBA success; + + gtk_style_context_save (context); + gtk_style_context_set_state (context, GTK_STATE_FLAG_NORMAL); + + gtk_style_context_get_color (context, GTK_STATE_FLAG_NORMAL, &fg); + + if (!gtk_style_context_lookup_color (context, "error_color", &error)) + error = fg; + if (!gtk_style_context_lookup_color (context, "warning_color", &warning)) + warning = fg; + if (!gtk_style_context_lookup_color (context, "success_color", &success)) + success = fg; + + gtk_style_context_restore (context); + + na_tray_set_colors (NA_TRAY (host), &fg, &error, &warning, &success); +} + +static gboolean +idle_redraw_cb (NaTray *tray) +{ + NaTrayPrivate *priv = tray->priv; + + g_hash_table_foreach (priv->trays_screen->icon_table, + (GHFunc) na_tray_child_force_redraw, NULL); + + priv->idle_redraw_id = 0; + + return FALSE; +} + +static void +na_tray_force_redraw (NaHost *host) +{ + NaTray *tray = NA_TRAY (host); + NaTrayPrivate *priv = tray->priv; + + /* Force the icons to redraw their backgrounds. + */ + if (priv->idle_redraw_id == 0) + priv->idle_redraw_id = g_idle_add ((GSourceFunc) idle_redraw_cb, tray); +} |