Importing systray applet. Not completed yet...

ede-panel/Panel.cpp

@@ -414,9 +414,11 @@ void Panel::load_applets(void) {
 		"keyboard_layout.so",
 		"cpu_monitor.so",
 		"mem_monitor.so",
+		"system_tray.so",
 		0
 	};
 
+#if 0
 	String dir = Resource::find_data("panel-applets");
 	if(dir.empty())
 		return;
@@ -428,7 +430,7 @@ void Panel::load_applets(void) {
 	}
 
 	mgr.fill_group(this);
-#if 0
+#endif
 	mgr.load("./applets/start-menu/start_menu.so");
 	mgr.load("./applets/quick-launch/quick_launch.so");
 	mgr.load("./applets/pager/pager.so");
@@ -437,6 +439,6 @@ void Panel::load_applets(void) {
 	mgr.load("./applets/keyboard-layout/keyboard_layout.so");
 	mgr.load("./applets/cpu-monitor/cpu_monitor.so");
 	mgr.load("./applets/mem-monitor/mem_monitor.so");
+	mgr.load("./applets/system-tray/system_tray.so");
 	mgr.fill_group(this);
-#endif
 }

ede-panel/Panel.h

@@ -4,8 +4,8 @@
 #include <edelib/Window.h>
 #include "AppletManager.h"
 
-#define EDE_PANEL_CAST_TO_PANEL(obj) ((Panel*)(obj))
-#define EDE_PANEL_GET_PANEL_OBJECT   (EDE_PANEL_CAST_TO_PANEL(parent()))
+#define EDE_PANEL_CAST_TO_PANEL(obj)   ((Panel*)(obj))
+#define EDE_PANEL_GET_PANEL_OBJECT(w)  (EDE_PANEL_CAST_TO_PANEL(w->parent()))
 
 EDELIB_NS_USING_AS(Window, PanelWindow)
 
@@ -38,6 +38,8 @@ public:
 
 	int panel_w(void) { return w(); }
 	int panel_h(void) { return h(); }
+
+	void relayout(void) { do_layout(); }
 };
 
 #endif

ede-panel/applets/Jamfile

@@ -18,4 +18,5 @@ SubInclude TOP ede-panel applets keyboard-layout ;
 SubInclude TOP ede-panel applets pager ;
 SubInclude TOP ede-panel applets quick-launch ;
 SubInclude TOP ede-panel applets start-menu ;
+SubInclude TOP ede-panel applets system-tray ;
 SubInclude TOP ede-panel applets taskbar ;

ede-panel/applets/system-tray/Jamfile

@@ -0,0 +1,13 @@
+#
+# $Id: Jamfile 2922 2009-11-05 15:18:51Z karijes $
+#
+# Part of Equinox Desktop Environment (EDE).
+# Copyright (c) 2011 EDE Authors.
+#
+# This program is licensed under terms of the 
+# GNU General Public License version 2 or newer.
+# See COPYING for details.
+
+SubDir TOP ede-panel applets system-tray ;
+
+PanelApplet system_tray : Tray.cpp TrayWindow.cpp ;

ede-panel/applets/system-tray/Tray.cpp

@@ -0,0 +1,184 @@
+#include <stdio.h>
+#define FL_LIBRARY 1
+#include <FL/Fl.H>
+#include <edelib/Debug.h>
+#include <edelib/Netwm.h>
+
+#include "Applet.h"
+#include "Panel.h"
+#include "Tray.h"
+#include "TrayWindow.h"
+
+#define SYSTEM_TRAY_REQUEST_DOCK   0
+#define SYSTEM_TRAY_BEGIN_MESSAGE  1
+#define SYSTEM_TRAY_CANCEL_MESSAGE 2
+
+EDELIB_NS_USING(netwm_window_get_icon)
+EDELIB_NS_USING(netwm_window_get_title)
+
+/* multiple tray's are not allowed anyways so this can work */
+Tray *curr_tray = 0;
+
+static int handle_xevent(int e) {
+	if(fl_xevent->type == ClientMessage && fl_xevent->xclient.message_type == curr_tray->get_opcode()) {
+		if(fl_xevent->xclient.data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
+			E_DEBUG(E_STRLOC ": Dock request for %i\n", fl_xevent->xclient.data.l[2]);
+			curr_tray->embed_window(fl_xevent->xclient.data.l[2]);
+			return true;
+		}
+
+		if(fl_xevent->xclient.data.l[1] == SYSTEM_TRAY_BEGIN_MESSAGE) {
+			E_DEBUG(E_STRLOC ": SYSTEM_TRAY_BEGIN_MESSAGE\n");
+			return true;
+		}
+
+		if(fl_xevent->xclient.data.l[1] == SYSTEM_TRAY_CANCEL_MESSAGE) {
+			E_DEBUG(E_STRLOC ": SYSTEM_TRAY_CANCEL_MESSAGE\n");
+			return true;
+		}
+	} else if(fl_xevent->type == DestroyNotify) {
+		XDestroyWindowEvent xev = fl_xevent->xdestroywindow;
+		curr_tray->unembed_window(xev.window);
+		return false;
+	}
+
+	return false;
+}
+
+Tray::Tray() : Fl_Group(0, 0, 5, 25), opcode(0) {
+	box(FL_FLAT_BOX);
+	color(FL_RED);
+	register_notification_area();
+}
+
+Tray::~Tray() {
+	Atom sel;
+	char sel_name[20];
+
+	snprintf(sel_name, sizeof(sel_name), "_NET_SYSTEM_TRAY_S%d", fl_screen);
+	sel = XInternAtom(fl_display, sel_name, False);
+	XSetSelectionOwner(fl_display, sel, None, CurrentTime);
+}
+
+void Tray::register_notification_area(void) {
+	Atom sel;
+	char sel_name[20];
+
+	snprintf(sel_name, sizeof(sel_name), "_NET_SYSTEM_TRAY_S%d", fl_screen);
+	sel = XInternAtom(fl_display, sel_name, False);
+	if(XGetSelectionOwner(fl_display, sel)) {
+		E_WARNING(E_STRLOC ": Notification area service is already provided by different program\n");
+		return;
+	}
+
+	/* register */
+	XSetSelectionOwner(fl_display, sel, fl_message_window, CurrentTime);
+	if(XGetSelectionOwner(fl_display, sel) != fl_message_window) {
+		E_WARNING(E_STRLOC ": Unable to register notification area service\n");
+		return;
+	}
+	
+	XClientMessageEvent xev;
+	xev.type = ClientMessage;
+	xev.message_type = XInternAtom(fl_display, "MANAGER", False);
+	xev.format = 32;
+	xev.data.l[0] = CurrentTime;
+	xev.data.l[1] = sel;
+	xev.data.l[2] = fl_message_window;
+	xev.data.l[3] = xev.data.l[4] = 0;
+
+	XSendEvent(fl_display, RootWindow(fl_display, fl_screen), False, StructureNotifyMask, (XEvent*)&xev);
+
+	opcode = XInternAtom(fl_display, "_NET_SYSTEM_TRAY_OPCODE", False);
+	message_data = XInternAtom(fl_display, "_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
+
+	curr_tray = this;
+	Fl::add_handler(handle_xevent);
+}
+
+static int get_parent(Window id, Window *parent) {
+	Window root, *children = 0;
+	unsigned int nchildren;
+	int s = XQueryTree(fl_display, id, &root, parent, &children, &nchildren);
+	if(s && children);
+		XFree(children);
+	return s;
+}
+
+void Tray::embed_window(Window id) {
+	TrayWindow *win = new TrayWindow(25, 25);
+	win->end();
+	win->set_image(netwm_window_get_icon(id));
+	win->set_tooltip(netwm_window_get_title(id));
+
+	add_to_tray(win);
+	win->show();
+
+	XReparentWindow(fl_display, id, fl_xid(win), 0, 0); 
+	/* remove any pixmap from reparented window, so 'TrayWindow' can display own content */
+	XSetWindowBackgroundPixmap(fl_display, id, None);
+
+	/* need to know when child dies */
+	XSelectInput(fl_display, fl_xid(win), SubstructureNotifyMask);
+
+	WinInfo i;
+	i.id = id;
+	i.win = win;
+	/* and to list */
+	win_list.push_back(i);
+}
+
+void Tray::unembed_window(Window id) {
+	WinListIt it = win_list.begin(), ite = win_list.end();
+
+	for(; it != ite; ++it) {
+		if((*it).id == id) {
+			remove_from_tray((*it).win);
+			win_list.erase(it);
+			return;
+		}
+	}
+}
+
+void Tray::add_to_tray(Fl_Widget *win) {
+	win->position(x(), y());
+
+	insert(*win, 0);
+	int W = w() + win->w() + 5;
+	w(W);
+
+	EDE_PANEL_GET_PANEL_OBJECT(this)->relayout();
+}
+
+void Tray::remove_from_tray(Fl_Widget *win) {
+	remove(win);
+
+	int W = w() - win->w() - 5;
+	w(W);
+
+	EDE_PANEL_GET_PANEL_OBJECT(this)->relayout();
+}
+
+int Tray::handle(int e) {
+	WinListIt it = win_list.begin(), ite = win_list.end();
+
+	for(; it != ite; ++it) {
+		Fl_Window *n = (*it).win;
+		if(Fl::event_x() >= n->x() && Fl::event_y() <= (n->x() + n->w()) &&
+			Fl::event_y() >= n->y() && Fl::event_y() <= (n->y() + n->h()))
+		{
+			return n->handle(e);
+		}
+	}
+
+	return Fl_Group::handle(e);
+}
+
+EDE_PANEL_APPLET_EXPORT (
+ Tray, 
+ EDE_PANEL_APPLET_OPTION_ALIGN_RIGHT,
+ "System Tray",
+ "0.1",
+ "empty",
+ "Sanel Zukan, Vedran Ljubovic"
+)

ede-panel/applets/system-tray/Tray.h

@@ -0,0 +1,36 @@
+#ifndef __TRAY_H__
+#define __TRAY_H__
+
+#include <FL/Fl_Group.H>
+#include <FL/x.H>
+#include <edelib/List.h>
+
+EDELIB_NS_USING(list)
+
+struct WinInfo {
+	Window    id;
+	Fl_Window *win;
+};
+
+typedef list<WinInfo> WinList;
+typedef list<WinInfo>::iterator WinListIt;
+
+class Tray : public Fl_Group {
+private:
+	Atom    opcode, message_data;
+	WinList win_list;
+public:
+	Tray();
+	~Tray();
+	void register_notification_area(void);
+	Atom get_opcode(void) const { return opcode; }
+	void embed_window(Window id);
+	void unembed_window(Window id);
+
+	void add_to_tray(Fl_Widget *w);
+	void remove_from_tray(Fl_Widget *w);
+
+	int handle(int e);
+};
+
+#endif

ede-panel/applets/system-tray/TrayWindow.cpp

@@ -0,0 +1,58 @@
+#include <FL/fl_draw.H>
+#include <edelib/Debug.h>
+#include "TrayWindow.h"
+
+/* scale image by keeping aspect ratio */
+static Fl_RGB_Image *aspect_scale(Fl_RGB_Image *orig, int W, int H) {
+	float aspect, neww, newh;
+
+	neww = (float)orig->w();
+	newh = (float)orig->h();
+
+	if(neww > W) {
+		aspect = (float)W / (float)neww;
+		neww *= aspect;
+		newh *= aspect;
+	}
+
+	if(newh > H) {
+		aspect = (float)H / (float)newh;
+		neww *= aspect;
+		newh *= aspect;
+	}
+
+	return (Fl_RGB_Image*)orig->copy((int)neww, (int)newh);
+}
+
+TrayWindow::TrayWindow(int W, int H) : Fl_Window(W, H), img(0) {
+	box(FL_FLAT_BOX);
+}
+
+void TrayWindow::set_image(Fl_RGB_Image *im) {
+	E_RETURN_IF_FAIL(im != 0);
+
+	/* delete previous one */
+	delete img;
+
+	/* do not use full w/h, but leave some room for few pixels around image */
+	img = aspect_scale(im, w() - 2, h() - 2);
+}
+
+void TrayWindow::draw(void) {
+	Fl_Window::draw();
+	if(img) {
+		int X = w()/2 - img->w()/2;
+		int Y = h()/2 - img->h()/2;
+		img->draw(X, Y);
+	}
+}
+
+void TrayWindow::set_tooltip(char *t) {
+	if(!t) {
+		ttip.clear();
+		tooltip(0);
+	} else {
+		ttip = t;
+		tooltip(ttip.c_str());
+	}
+}

ede-panel/applets/system-tray/TrayWindow.h

@@ -0,0 +1,22 @@
+#ifndef __TRAYWINDOW_H__
+#define __TRAYWINDOW_H__
+
+#include <FL/Fl_Window.H>
+#include <FL/Fl_Image.H>
+#include <edelib/String.h>
+
+EDELIB_NS_USING(String)
+
+/* window dedicated to displaying tray window with icon resized to window size */
+class TrayWindow : public Fl_Window {
+private:
+	Fl_RGB_Image *img;
+	String        ttip;
+public:
+	TrayWindow(int W, int H);
+	void set_image(Fl_RGB_Image *im);
+	void draw(void);
+	void set_tooltip(char *t);
+};
+
+#endif

ede-panel/applets/taskbar/Taskbar.cpp

@@ -70,7 +70,7 @@ static void net_event_cb(int action, Window xid, void *data) {
 Taskbar::Taskbar() : Fl_Group(0, 0, 40, 25), curr_active(NULL), prev_active(NULL), panel(NULL) {
 	end();
 
-	panel = EDE_PANEL_GET_PANEL_OBJECT;
+	panel = EDE_PANEL_GET_PANEL_OBJECT(this);
 
 	/* assure display is openned */
 	fl_open_display();