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testing/tools/screenshot/gdk-screenshot.cpp@7e26c7da4463 (annotated)

testing/tools/screenshot/gdk-screenshot.cpp

Wed, 31 Dec 2014 06:55:50 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:55:50 +0100

changeset 2

7e26c7da4463

permissions

-rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

michael@0	1	/*
michael@0	2	* Copyright (c) 2009, The Mozilla Foundation
michael@0	3	* All rights reserved.
michael@0	4	*
michael@0	5	* Redistribution and use in source and binary forms, with or without
michael@0	6	* modification, are permitted provided that the following conditions are met:
michael@0	7	* * Redistributions of source code must retain the above copyright
michael@0	8	* notice, this list of conditions and the following disclaimer.
michael@0	9	* * Redistributions in binary form must reproduce the above copyright
michael@0	10	* notice, this list of conditions and the following disclaimer in the
michael@0	11	* documentation and/or other materials provided with the distribution.
michael@0	12	* * Neither the name of the Mozilla Foundation nor the
michael@0	13	* names of its contributors may be used to endorse or promote products
michael@0	14	* derived from this software without specific prior written permission.
michael@0	15	*
michael@0	16	* THIS SOFTWARE IS PROVIDED BY The Mozilla Foundation ''AS IS'' AND ANY
michael@0	17	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
michael@0	18	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
michael@0	19	* DISCLAIMED. IN NO EVENT SHALL The Mozilla Foundation BE LIABLE FOR ANY
michael@0	20	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
michael@0	21	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
michael@0	22	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
michael@0	23	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0	24	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
michael@0	25	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0	26	*
michael@0	27	* Contributors:
michael@0	28	* Ted Mielczarek <ted.mielczarek@gmail.com>
michael@0	29	* Karl Tomlinson <karlt+@karlt.net>
michael@0	30	*/
michael@0	31	/*
michael@0	32	* gdk-screenshot.cpp: Save a screenshot of the root window in .png format.
michael@0	33	* If a filename is specified as the first argument on the commandline,
michael@0	34	* then the image will be saved to that filename. Otherwise, the image will
michael@0	35	* be written to stdout.
michael@0	36	*/
michael@0	37	#include <gdk/gdk.h>
michael@0	38	#include <gdk/gdkx.h>
michael@0	39	#ifdef HAVE_LIBXSS
michael@0	40	#include <X11/extensions/scrnsaver.h>
michael@0	41	#endif
michael@0	42
michael@0	43	#include <errno.h>
michael@0	44	#include <stdio.h>
michael@0	45	#include "mozilla/NullPtr.h"
michael@0	46
michael@0	47	gboolean save_to_stdout(const gchar *buf, gsize count,
michael@0	48	GError **error, gpointer data)
michael@0	49	{
michael@0	50	size_t written = fwrite(buf, 1, count, stdout);
michael@0	51	if (written != count) {
michael@0	52	g_set_error(error, G_FILE_ERROR, g_file_error_from_errno(errno),
michael@0	53	"Write to stdout failed: %s", g_strerror(errno));
michael@0	54	return FALSE;
michael@0	55	}
michael@0	56
michael@0	57	return TRUE;
michael@0	58	}
michael@0	59
michael@0	60	int main(int argc, char** argv)
michael@0	61	{
michael@0	62	gdk_init(&argc, &argv);
michael@0	63
michael@0	64	// TODO GTK3
michael@0	65	#if defined(HAVE_LIBXSS) && (MOZ_WIDGET_GTK == 2)
michael@0	66	int event_base, error_base;
michael@0	67	Bool have_xscreensaver =
michael@0	68	XScreenSaverQueryExtension(GDK_DISPLAY(), &event_base, &error_base);
michael@0	69
michael@0	70	if (!have_xscreensaver) {
michael@0	71	fprintf(stderr, "No XScreenSaver extension on display\n");
michael@0	72	} else {
michael@0	73	XScreenSaverInfo* info = XScreenSaverAllocInfo();
michael@0	74	if (!info) {
michael@0	75	fprintf(stderr, "%s: Out of memory\n", argv[0]);
michael@0	76	return 1;
michael@0	77	}
michael@0	78	XScreenSaverQueryInfo(GDK_DISPLAY(), GDK_ROOT_WINDOW(), info);
michael@0	79
michael@0	80	const char* state;
michael@0	81	const char* til_or_since = nullptr;
michael@0	82	switch (info->state) {
michael@0	83	case ScreenSaverOff:
michael@0	84	state = "Off";
michael@0	85	til_or_since = "XScreenSaver will activate after another %lu seconds idle time\n";
michael@0	86	break;
michael@0	87	case ScreenSaverOn:
michael@0	88	state = "On";
michael@0	89	if (info->til_or_since) {
michael@0	90	til_or_since = "XScreenSaver idle timer activated %lu seconds ago\n";
michael@0	91	} else {
michael@0	92	til_or_since = "XScreenSaver idle activation is disabled\n";
michael@0	93	}
michael@0	94	break;
michael@0	95	case ScreenSaverDisabled:
michael@0	96	state = "Disabled";
michael@0	97	break;
michael@0	98	default:
michael@0	99	state = "unknown";
michael@0	100	}
michael@0	101
michael@0	102	const char* kind;
michael@0	103	switch (info->kind) {
michael@0	104	case ScreenSaverBlanked:
michael@0	105	kind = "Blanked";
michael@0	106	break;
michael@0	107	case ScreenSaverInternal:
michael@0	108	state = "Internal";
michael@0	109	break;
michael@0	110	case ScreenSaverExternal:
michael@0	111	state = "External";
michael@0	112	break;
michael@0	113	default:
michael@0	114	state = "unknown";
michael@0	115	}
michael@0	116
michael@0	117	fprintf(stderr, "XScreenSaver state: %s\n", state);
michael@0	118
michael@0	119	if (til_or_since) {
michael@0	120	fprintf(stderr, "XScreenSaver kind: %s\n", kind);
michael@0	121	fprintf(stderr, til_or_since, info->til_or_since / 1000);
michael@0	122	}
michael@0	123
michael@0	124	fprintf(stderr, "User input has been idle for %lu seconds\n", info->idle / 1000);
michael@0	125
michael@0	126	XFree(info);
michael@0	127	}
michael@0	128	#endif
michael@0	129
michael@0	130	GdkWindow* window = gdk_get_default_root_window();
michael@0	131	GdkPixbuf* screenshot = nullptr;
michael@0	132	// TODO GTK3
michael@0	133	#if (MOZ_WIDGET_GTK == 2)
michael@0	134	screenshot = gdk_pixbuf_get_from_drawable(nullptr, window, nullptr,
michael@0	135	0, 0, 0, 0,
michael@0	136	gdk_screen_width(),
michael@0	137	gdk_screen_height());
michael@0	138	#endif
michael@0	139	if (!screenshot) {
michael@0	140	fprintf(stderr, "%s: failed to create screenshot GdkPixbuf\n", argv[0]);
michael@0	141	return 1;
michael@0	142	}
michael@0	143
michael@0	144	GError* error = nullptr;
michael@0	145	if (argc > 1) {
michael@0	146	gdk_pixbuf_save(screenshot, argv[1], "png", &error, nullptr);
michael@0	147	} else {
michael@0	148	gdk_pixbuf_save_to_callback(screenshot, save_to_stdout, nullptr,
michael@0	149	"png", &error, nullptr);
michael@0	150	}
michael@0	151	if (error) {
michael@0	152	fprintf(stderr, "%s: failed to write screenshot as png: %s\n",
michael@0	153	argv[0], error->message);
michael@0	154	return error->code;
michael@0	155	}
michael@0	156
michael@0	157	return 0;
michael@0	158	}