Add screenshot interface
Adds methods to shell_global to allow taking screenshots save the result into a specified png image. It exposes three methods via shellDBus applications like gnome-screenshot: *) Screenshot (screenshots the whole screen) *) ScreenshotWindow (screenshots the focused window) *) ScreenshotArea (screenshots a specific area) https://bugzilla.gnome.org/show_bug.cgi?id=652952
This commit is contained in:
parent
a2e6b3167b
commit
b7fd78b254
@ -23,6 +23,18 @@ const GnomeShellIface = {
|
||||
{ name: 'GetExtensionErrors',
|
||||
inSignature: 's',
|
||||
outSignature: 'as'
|
||||
},
|
||||
{ name: 'ScreenshotArea',
|
||||
inSignature: 'iiiis',
|
||||
outSignature: 'b'
|
||||
},
|
||||
{ name: 'ScreenshotWindow',
|
||||
inSignature: 'bs',
|
||||
outSignature: 'b'
|
||||
},
|
||||
{ name: 'Screenshot',
|
||||
inSignature: 's',
|
||||
outSignature: 'b'
|
||||
}
|
||||
],
|
||||
signals: [],
|
||||
@ -76,6 +88,50 @@ GnomeShell.prototype = {
|
||||
return [success, returnValue];
|
||||
},
|
||||
|
||||
/**
|
||||
* ScreenshotArea:
|
||||
* @x: The X coordinate of the area
|
||||
* @y: The Y coordinate of the area
|
||||
* @width: The width of the area
|
||||
* @height: The height of the area
|
||||
* @filename: The filename for the screenshot
|
||||
*
|
||||
* Takes a screenshot of the passed in area and saves it
|
||||
* in @filename as png image, it returns a boolean
|
||||
* indicating whether the operation was successful or not.
|
||||
*
|
||||
*/
|
||||
ScreenshotAreaAsync : function (x, y, width, height, filename, callback) {
|
||||
global.screenshot_area (x, y, width, height, filename, function (obj, result) { callback(result); });
|
||||
},
|
||||
|
||||
/**
|
||||
* ScreenshotWindow:
|
||||
* @include_frame: Whether to include the frame or not
|
||||
* @filename: The filename for the screenshot
|
||||
*
|
||||
* Takes a screenshot of the focused window (optionally omitting the frame)
|
||||
* and saves it in @filename as png image, it returns a boolean
|
||||
* indicating whether the operation was successful or not.
|
||||
*
|
||||
*/
|
||||
ScreenshotWindow : function (include_frame, filename) {
|
||||
return global.screenshot_window (include_frame, filename);
|
||||
},
|
||||
|
||||
/**
|
||||
* Screenshot:
|
||||
* @filename: The filename for the screenshot
|
||||
*
|
||||
* Takes a screenshot of the whole screen and saves it
|
||||
* in @filename as png image, it returns a boolean
|
||||
* indicating whether the operation was successful or not.
|
||||
*
|
||||
*/
|
||||
ScreenshotAsync : function (filename, callback) {
|
||||
global.screenshot(filename, function (obj, result) { callback(result); });
|
||||
},
|
||||
|
||||
ListExtensions: function() {
|
||||
return ExtensionSystem.extensionMeta;
|
||||
},
|
||||
|
@ -13,4 +13,19 @@ GjsContext *_shell_global_get_gjs_context (ShellGlobal *global);
|
||||
|
||||
gboolean _shell_global_check_xdnd_event (ShellGlobal *global,
|
||||
XEvent *xev);
|
||||
|
||||
/* Used for async screenshot grabbing */
|
||||
typedef struct _screenshot_data {
|
||||
ShellGlobal *global;
|
||||
|
||||
char *filename;
|
||||
|
||||
int x;
|
||||
int y;
|
||||
int width;
|
||||
int height;
|
||||
|
||||
ShellGlobalScreenshotCallback callback;
|
||||
} _screenshot_data;
|
||||
|
||||
#endif /* __SHELL_GLOBAL_PRIVATE_H__ */
|
||||
|
@ -1628,3 +1628,232 @@ shell_global_launch_calendar_server (ShellGlobal *global)
|
||||
|
||||
g_free (calendar_server_exe);
|
||||
}
|
||||
|
||||
static void
|
||||
grab_screenshot (ClutterActor *stage,
|
||||
_screenshot_data *screenshot_data)
|
||||
{
|
||||
MetaScreen *screen = shell_global_get_screen (screenshot_data->global);
|
||||
cairo_status_t status;
|
||||
cairo_surface_t *image;
|
||||
guchar *data;
|
||||
int width, height;
|
||||
|
||||
meta_plugin_query_screen_size (screenshot_data->global->plugin, &width, &height);
|
||||
image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
|
||||
data = cairo_image_surface_get_data (image);
|
||||
|
||||
cogl_flush();
|
||||
|
||||
cogl_read_pixels (0, 0, width, height, COGL_READ_PIXELS_COLOR_BUFFER, CLUTTER_CAIRO_FORMAT_ARGB32, data);
|
||||
|
||||
cairo_surface_mark_dirty (image);
|
||||
|
||||
if (meta_screen_get_n_monitors (screen) > 1)
|
||||
{
|
||||
cairo_region_t *screen_region = cairo_region_create ();
|
||||
cairo_region_t *stage_region;
|
||||
MetaRectangle monitor_rect;
|
||||
cairo_rectangle_int_t stage_rect;
|
||||
int i;
|
||||
cairo_t *cr;
|
||||
|
||||
for (i = meta_screen_get_n_monitors (screen) - 1; i >= 0; i--)
|
||||
{
|
||||
meta_screen_get_monitor_geometry (screen, i, &monitor_rect);
|
||||
cairo_region_union_rectangle (screen_region, (const cairo_rectangle_int_t *) &monitor_rect);
|
||||
}
|
||||
|
||||
stage_rect.x = 0;
|
||||
stage_rect.y = 0;
|
||||
stage_rect.width = width;
|
||||
stage_rect.height = height;
|
||||
|
||||
stage_region = cairo_region_create_rectangle ((const cairo_rectangle_int_t *) &stage_rect);
|
||||
cairo_region_xor (stage_region, screen_region);
|
||||
cairo_region_destroy (screen_region);
|
||||
|
||||
cr = cairo_create (image);
|
||||
|
||||
for (i = 0; i < cairo_region_num_rectangles (stage_region); i++)
|
||||
{
|
||||
cairo_rectangle_int_t rect;
|
||||
cairo_region_get_rectangle (stage_region, i, &rect);
|
||||
cairo_rectangle (cr, (double) rect.x, (double) rect.y, (double) rect.width, (double) rect.height);
|
||||
cairo_fill (cr);
|
||||
}
|
||||
|
||||
cairo_destroy (cr);
|
||||
cairo_region_destroy (stage_region);
|
||||
}
|
||||
|
||||
|
||||
status = cairo_surface_write_to_png (image, screenshot_data->filename);
|
||||
cairo_surface_destroy (image);
|
||||
|
||||
if (screenshot_data->callback)
|
||||
screenshot_data->callback (screenshot_data->global, status == CAIRO_STATUS_SUCCESS);
|
||||
|
||||
g_signal_handlers_disconnect_by_func (stage, (void *)grab_screenshot, (gpointer)screenshot_data);
|
||||
g_free (screenshot_data->filename);
|
||||
g_free (screenshot_data);
|
||||
}
|
||||
|
||||
static void
|
||||
grab_area_screenshot (ClutterActor *stage,
|
||||
_screenshot_data *screenshot_data)
|
||||
{
|
||||
cairo_status_t status;
|
||||
cairo_surface_t *image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, screenshot_data->width, screenshot_data->height);
|
||||
guchar *data = cairo_image_surface_get_data (image);
|
||||
|
||||
cogl_flush();
|
||||
|
||||
cogl_read_pixels (screenshot_data->x, screenshot_data->y, screenshot_data->width, screenshot_data->height,
|
||||
COGL_READ_PIXELS_COLOR_BUFFER, CLUTTER_CAIRO_FORMAT_ARGB32, data);
|
||||
|
||||
cairo_surface_mark_dirty (image);
|
||||
status = cairo_surface_write_to_png (image, screenshot_data->filename);
|
||||
cairo_surface_destroy (image);
|
||||
|
||||
if (screenshot_data->callback)
|
||||
screenshot_data->callback (screenshot_data->global, status == CAIRO_STATUS_SUCCESS);
|
||||
|
||||
g_signal_handlers_disconnect_by_func (stage, (void *)grab_area_screenshot, (gpointer)screenshot_data);
|
||||
g_free (screenshot_data->filename);
|
||||
g_free (screenshot_data);
|
||||
}
|
||||
|
||||
/**
|
||||
* shell_global_screenshot:
|
||||
* @global: the #ShellGlobal
|
||||
* @filename: The filename for the screenshot
|
||||
* @callback: (scope async): function to call returning success or failure
|
||||
* of the async grabbing
|
||||
*
|
||||
* Takes a screenshot of the whole screen
|
||||
* in @filename as png image.
|
||||
*
|
||||
*/
|
||||
void
|
||||
shell_global_screenshot (ShellGlobal *global,
|
||||
const char *filename,
|
||||
ShellGlobalScreenshotCallback callback)
|
||||
{
|
||||
ClutterActor *stage;
|
||||
_screenshot_data *data = g_new0 (_screenshot_data, 1);
|
||||
|
||||
data->global = global;
|
||||
data->filename = g_strdup (filename);
|
||||
data->callback = callback;
|
||||
|
||||
stage = CLUTTER_ACTOR (meta_plugin_get_stage (global->plugin));
|
||||
|
||||
g_signal_connect_after (stage, "paint", G_CALLBACK (grab_screenshot), (gpointer)data);
|
||||
|
||||
clutter_actor_queue_redraw (stage);
|
||||
}
|
||||
|
||||
/**
|
||||
* shell_global_screenshot_area:
|
||||
* @global: the #ShellGlobal
|
||||
* @x: The X coordinate of the area
|
||||
* @y: The Y coordinate of the area
|
||||
* @width: The width of the area
|
||||
* @height: The height of the area
|
||||
* @filename: The filename for the screenshot
|
||||
* @callback: (scope async): function to call returning success or failure
|
||||
* of the async grabbing
|
||||
*
|
||||
* Takes a screenshot of the passed in area and saves it
|
||||
* in @filename as png image.
|
||||
*
|
||||
*/
|
||||
void
|
||||
shell_global_screenshot_area (ShellGlobal *global,
|
||||
int x,
|
||||
int y,
|
||||
int width,
|
||||
int height,
|
||||
const char *filename,
|
||||
ShellGlobalScreenshotCallback callback)
|
||||
{
|
||||
ClutterActor *stage;
|
||||
_screenshot_data *data = g_new0 (_screenshot_data, 1);
|
||||
|
||||
data->global = global;
|
||||
data->filename = g_strdup (filename);
|
||||
data->x = x;
|
||||
data->y = y;
|
||||
data->width = width;
|
||||
data->height = height;
|
||||
data->callback = callback;
|
||||
|
||||
stage = CLUTTER_ACTOR (meta_plugin_get_stage (global->plugin));
|
||||
|
||||
g_signal_connect_after (stage, "paint", G_CALLBACK (grab_area_screenshot), (gpointer)data);
|
||||
|
||||
clutter_actor_queue_redraw (stage);
|
||||
}
|
||||
|
||||
/**
|
||||
* shell_global_screenshot_window:
|
||||
* @global: the #ShellGlobal
|
||||
* @include_frame: Whether to include the frame or not
|
||||
*
|
||||
* @filename: The filename for the screenshot
|
||||
*
|
||||
* Takes a screenshot of the focused window (optionally omitting the frame)
|
||||
* in @filename as png image.
|
||||
*
|
||||
* Return value: success or failure.
|
||||
*/
|
||||
gboolean
|
||||
shell_global_screenshot_window (ShellGlobal *global,
|
||||
gboolean include_frame,
|
||||
const char *filename)
|
||||
{
|
||||
CoglHandle texture;
|
||||
cairo_surface_t *image;
|
||||
guchar *data;
|
||||
|
||||
MetaScreen *screen = meta_plugin_get_screen (global->plugin);
|
||||
MetaDisplay *display = meta_screen_get_display (screen);
|
||||
MetaWindow *window = meta_display_get_focus_window (display);
|
||||
ClutterActor *window_actor;
|
||||
|
||||
cairo_status_t status;
|
||||
|
||||
window_actor = CLUTTER_ACTOR (meta_window_get_compositor_private (window));
|
||||
texture = clutter_texture_get_cogl_texture (CLUTTER_TEXTURE (meta_window_actor_get_texture (META_WINDOW_ACTOR (window_actor))));
|
||||
|
||||
if (!include_frame)
|
||||
{
|
||||
MetaRectangle *window_rect = meta_window_get_rect (window);
|
||||
texture = cogl_texture_new_from_sub_texture (texture,
|
||||
window_rect->x,
|
||||
window_rect->y,
|
||||
window_rect->width,
|
||||
window_rect->height);
|
||||
|
||||
image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
|
||||
window_rect->width,
|
||||
window_rect->height);
|
||||
}
|
||||
else
|
||||
image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
|
||||
clutter_actor_get_width (window_actor),
|
||||
clutter_actor_get_height (window_actor));
|
||||
|
||||
data = cairo_image_surface_get_data (image);
|
||||
|
||||
cogl_flush();
|
||||
|
||||
cogl_texture_get_data (texture, CLUTTER_CAIRO_FORMAT_ARGB32, 0, data);
|
||||
|
||||
cairo_surface_mark_dirty (image);
|
||||
status = cairo_surface_write_to_png (image, filename);
|
||||
cairo_surface_destroy (image);
|
||||
|
||||
return status == CAIRO_STATUS_SUCCESS;
|
||||
}
|
||||
|
@ -142,6 +142,25 @@ void shell_global_reexec_self (ShellGlobal *global);
|
||||
|
||||
void shell_global_launch_calendar_server (ShellGlobal *global);
|
||||
|
||||
|
||||
typedef void (*ShellGlobalScreenshotCallback) (ShellGlobal *global, gboolean success);
|
||||
|
||||
void shell_global_screenshot_area (ShellGlobal *global,
|
||||
int x,
|
||||
int y,
|
||||
int width,
|
||||
int height,
|
||||
const char *filename,
|
||||
ShellGlobalScreenshotCallback callback);
|
||||
|
||||
gboolean shell_global_screenshot_window (ShellGlobal *global,
|
||||
gboolean include_frame,
|
||||
const char *filename);
|
||||
|
||||
void shell_global_screenshot (ShellGlobal *global,
|
||||
const char *filename,
|
||||
ShellGlobalScreenshotCallback callback);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __SHELL_GLOBAL_H__ */
|
||||
|
Loading…
Reference in New Issue
Block a user