Add fullscreen mode to mupdf viewer.

Toggle with 'f'. Fullscreen turns off shrinkwrap, and shrinkwrap turns
off fullscreen.

4 files changed, 56 insertions, 1 deletions

diff --git a/apps/pdfapp.c b/apps/pdfapp.c
index f685d098..5b839eb1 100644
--- a/apps/pdfapp.c
+++ b/apps/pdfapp.c
@@ -789,7 +789,18 @@ void pdfapp_onkey(pdfapp_t *app, int c)
 	 * Pan view, but don't need to repaint image
 	 */
 
+	case 'f':
+		app->shrinkwrap = 0;
+		winfullscreen(app, !app->fullscreen);
+		app->fullscreen = !app->fullscreen;
+		break;
+
 	case 'w':
+		if (app->fullscreen)
+		{
+			winfullscreen(app, 0);
+			app->fullscreen = 0;
+		}
 		app->shrinkwrap = 1;
 		app->panx = app->pany = 0;
 		pdfapp_showpage(app, 0, 0, 1);
diff --git a/apps/pdfapp.h b/apps/pdfapp.h
index b23f939a..7aad1238 100644
--- a/apps/pdfapp.h
+++ b/apps/pdfapp.h
@@ -25,6 +25,7 @@ extern void winreloadfile(pdfapp_t*);
 extern void windrawstring(pdfapp_t*, int x, int y, char *s);
 extern void winclose(pdfapp_t*);
 extern void winhelp(pdfapp_t*);
+extern void winfullscreen(pdfapp_t*, int state);
 
 struct pdfapp_s
 {
@@ -58,6 +59,7 @@ struct pdfapp_s
 	int winw, winh;
 	int scrw, scrh;
 	int shrinkwrap;
+	int fullscreen;
 
 	/* event handling state */
 	char number[256];
diff --git a/apps/win_main.c b/apps/win_main.c
index 8ccdee65..4818c58b 100644
--- a/apps/win_main.c
+++ b/apps/win_main.c
@@ -553,6 +553,27 @@ void winrepaintsearch(pdfapp_t *app)
 	InvalidateRect(hwndview, NULL, 0);
 }
 
+void winfullscreen(pdfapp_t *app, int state)
+{
+	static WINDOWPLACEMENT savedplace;
+	static int isfullscreen = 0;
+	if (state && !isfullscreen)
+	{
+		GetWindowPlacement(hwndframe, &savedplace);
+		SetWindowLong(hwndframe, GWL_STYLE, WS_POPUP | WS_VISIBLE);
+		SetWindowPos(hwndframe, NULL, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_FRAMECHANGED);
+		ShowWindow(hwndframe, SW_SHOWMAXIMIZED);
+		isfullscreen = 1;
+	}
+	if (!state && isfullscreen)
+	{
+		SetWindowLong(hwndframe, GWL_STYLE, WS_OVERLAPPEDWINDOW);
+		SetWindowPos(hwndframe, NULL, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_FRAMECHANGED);
+		SetWindowPlacement(hwndframe, &savedplace);
+		isfullscreen = 0;
+	}
+}
+
 /*
  * Event handling
  */
diff --git a/apps/x11_main.c b/apps/x11_main.c
index 8ab20674..907b843c 100644
--- a/apps/x11_main.c
+++ b/apps/x11_main.c
@@ -68,6 +68,8 @@ static Atom XA_TARGETS;
 static Atom XA_TIMESTAMP;
 static Atom XA_UTF8_STRING;
 static Atom WM_DELETE_WINDOW;
+static Atom NET_WM_STATE;
+static Atom NET_WM_STATE_FULLSCREEN;
 static int x11fd;
 static int xscr;
 static Window xwin;
@@ -133,6 +135,8 @@ static void winopen(void)
 	XA_TIMESTAMP = XInternAtom(xdpy, "TIMESTAMP", False);
 	XA_UTF8_STRING = XInternAtom(xdpy, "UTF8_STRING", False);
 	WM_DELETE_WINDOW = XInternAtom(xdpy, "WM_DELETE_WINDOW", False);
+	NET_WM_STATE = XInternAtom(xdpy, "_NET_WM_STATE", False);
+	NET_WM_STATE_FULLSCREEN = XInternAtom(xdpy, "_NET_WM_STATE_FULLSCREEN", False);
 
 	xscr = DefaultScreen(xdpy);
 
@@ -154,7 +158,7 @@ static void winopen(void)
 	XAllocColor(xdpy, DefaultColormap(xdpy, xscr), &xshcolor);
 
 	xwin = XCreateWindow(xdpy, DefaultRootWindow(xdpy),
-		10, 10, 200, 100, 1,
+		10, 10, 200, 100, 0,
 		ximage_get_depth(),
 		InputOutput,
 		ximage_get_visual(),
@@ -282,6 +286,23 @@ void winresize(pdfapp_t *app, int w, int h)
 	}
 }
 
+void winfullscreen(pdfapp_t *app, int state)
+{
+	XEvent xev;
+	xev.xclient.type = ClientMessage;
+	xev.xclient.serial = 0;
+	xev.xclient.send_event = True;
+	xev.xclient.window = xwin;
+	xev.xclient.message_type = NET_WM_STATE;
+	xev.xclient.format = 32;
+	xev.xclient.data.l[0] = state;
+	xev.xclient.data.l[1] = NET_WM_STATE_FULLSCREEN;
+	xev.xclient.data.l[2] = 0;
+	XSendEvent(xdpy, DefaultRootWindow(xdpy), False,
+		SubstructureRedirectMask | SubstructureNotifyMask,
+		&xev);
+}
+
 static void fillrect(int x, int y, int w, int h)
 {
 	if (w > 0 && h > 0)