/*
* Copyright 2014 dorkbox, llc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dorkbox.util.tray.linux;
import com.sun.jna.Pointer;
import dorkbox.util.jna.linux.Gobject;
import dorkbox.util.jna.linux.Gtk;
import dorkbox.util.jna.linux.GtkSupport;
import dorkbox.util.tray.SystemTray;
import dorkbox.util.tray.SystemTrayMenuAction;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Class for handling all system tray interactions via GTK.
*
* This is the "old" way to do it, and does not work with some desktop environments.
*/
public
class GtkSystemTray extends SystemTray {
private static final Gobject libgobject = Gobject.INSTANCE;
private static final Gtk libgtk = Gtk.INSTANCE;
private final Map menuEntries = new HashMap(2);
private volatile Pointer menu;
private volatile Pointer connectionStatusItem;;
private volatile Pointer trayIcon;
// need to hang on to these to prevent gc
private final List widgets = new ArrayList(4);
// have to make this a field, to prevent GC on this object
@SuppressWarnings("FieldCanBeLocal")
private Gobject.GEventCallback gtkCallback;
public
GtkSystemTray() {
}
@Override
public
void createTray(String iconName) {
libgtk.gdk_threads_enter();
final Pointer trayIcon = libgtk.gtk_status_icon_new();
libgtk.gtk_status_icon_set_title(trayIcon, "SystemTray@Dorkbox");
libgtk.gtk_status_icon_set_tooltip(trayIcon, "SystemTray@Dorkbox");
this.trayIcon = trayIcon;
libgtk.gtk_status_icon_set_from_file(trayIcon, iconPath(iconName));
this.menu = libgtk.gtk_menu_new();
this.gtkCallback = new Gobject.GEventCallback() {
@Override
public
void callback(Pointer system_tray, final Gtk.GdkEventButton event) {
// BUTTON_PRESS only (any mouse click)
if (event.type == 4) {
libgtk.gtk_menu_popup(menu, null, null, Gtk.gtk_status_icon_position_menu, system_tray, 0, event.time);
}
}
};
libgobject.g_signal_connect_data(trayIcon, "button_press_event", gtkCallback, menu, null, 0);
libgtk.gtk_status_icon_set_visible(trayIcon, true);
libgtk.gdk_threads_leave();
System.err.println("POW2");
GtkSupport.startGui();
this.active = true;
}
@SuppressWarnings("FieldRepeatedlyAccessedInMethod")
@Override
public
void removeTray() {
libgtk.gdk_threads_enter();
for (Pointer widget : this.widgets) {
libgtk.gtk_widget_destroy(widget);
}
// this hides the indicator
libgtk.gtk_status_icon_set_visible(this.trayIcon, false);
libgobject.g_object_unref(this.trayIcon);
this.active = false;
// GC it
this.trayIcon = null;
this.widgets.clear();
// unrefs the children too
// libgobject.g_object_unref(this.menu); shouldn't do this because of how we use it
this.menu = null;
synchronized (this.menuEntries) {
this.menuEntries.clear();
}
this.connectionStatusItem = null;
GtkSupport.shutdownGui();
libgtk.gdk_threads_leave();
super.removeTray();
}
@SuppressWarnings({"FieldRepeatedlyAccessedInMethod", "Duplicates"})
@Override
public
void setStatus(final String infoString, String iconName) {
libgtk.gdk_threads_enter();
if (this.connectionStatusItem == null) {
this.connectionStatusItem = libgtk.gtk_menu_item_new_with_label(infoString);
this.widgets.add(this.connectionStatusItem);
libgtk.gtk_widget_set_sensitive(this.connectionStatusItem, Gtk.FALSE);
libgtk.gtk_menu_shell_append(this.menu, this.connectionStatusItem);
}
else {
libgtk.gtk_menu_item_set_label(this.connectionStatusItem, infoString);
}
libgtk.gtk_widget_show_all(this.connectionStatusItem);
libgtk.gtk_status_icon_set_from_file(GtkSystemTray.this.trayIcon, iconPath(iconName));
libgtk.gdk_threads_leave();
}
/**
* Will add a new menu entry, or update one if it already exists
*/
@SuppressWarnings("Duplicates")
@Override
public
void addMenuEntry(final String menuText, final SystemTrayMenuAction callback) {
synchronized (this.menuEntries) {
MenuEntry menuEntry = this.menuEntries.get(menuText);
if (menuEntry == null) {
libgtk.gdk_threads_enter();
Pointer dashboardItem = libgtk.gtk_menu_item_new_with_label(menuText);
// have to watch out! These can get garbage collected!
Gobject.GCallback gtkCallback = new Gobject.GCallback() {
@Override
public
void callback(Pointer instance, Pointer data) {
GtkSystemTray.this.callbackExecutor.execute(new Runnable() {
@Override
public
void run() {
callback.onClick(GtkSystemTray.this);
}
});
}
};
libgobject.g_signal_connect_data(dashboardItem, "activate", gtkCallback, null, null, 0);
libgtk.gtk_menu_shell_append(this.menu, dashboardItem);
libgtk.gtk_widget_show_all(dashboardItem);
libgtk.gdk_threads_leave();
menuEntry = new MenuEntry();
menuEntry.dashboardItem = dashboardItem;
menuEntry.gtkCallback = gtkCallback;
this.menuEntries.put(menuText, menuEntry);
}
else {
updateMenuEntry(menuText, menuText, callback);
}
}
}
/**
* Will update an already existing menu entry (or add a new one, if it doesn't exist)
*/
@SuppressWarnings("Duplicates")
@Override
public
void updateMenuEntry(final String origMenuText, final String newMenuText, final SystemTrayMenuAction newCallback) {
synchronized (this.menuEntries) {
MenuEntry menuEntry = this.menuEntries.get(origMenuText);
if (menuEntry != null) {
libgtk.gdk_threads_enter();
libgtk.gtk_menu_item_set_label(menuEntry.dashboardItem, newMenuText);
// have to watch out! These can get garbage collected!
menuEntry.gtkCallback = new Gobject.GCallback() {
@Override
public
void callback(Pointer instance, Pointer data) {
GtkSystemTray.this.callbackExecutor.execute(new Runnable() {
@Override
public
void run() {
newCallback.onClick(GtkSystemTray.this);
}
});
}
};
libgobject.g_signal_connect_data(menuEntry.dashboardItem, "activate", menuEntry.gtkCallback, null, null, 0);
libgtk.gtk_widget_show_all(menuEntry.dashboardItem);
libgtk.gdk_threads_leave();
}
else {
addMenuEntry(origMenuText, newCallback);
}
}
}
}