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shell-screenshot: Use mutter paint signals to optionally draw cursor

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Under wayland, if the cursor should be included when doing a fullscreen
screenshot, we can rely on mutter "paint" signal to have it composited for free.
Otherwise if it's not requested, we can use the "actors-painted" signal to get a
stage texture before the mouse overlay has been added.

Instead, under X11 or when only a window screenshot is requested, we still
need to draw it manually.

https://bugzilla.gnome.org/show_bug.cgi?id=765011
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/5
This commit is contained in:
Marco Trevisan (Treviño) 2019-02-13 02:23:41 +01:00 committed by Jonas Ådahl
parent 559ec8750a
commit b3e178af9d
1 changed files with 28 additions and 7 deletions
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35
src/shell-screenshot.c
View File

@ -40,6 +40,13 @@ struct _ShellScreenshotPrivate
gboolean include_frame;
};
typedef enum
{
SHELL_SCREENSHOT_SCREEN,
SHELL_SCREENSHOT_WINDOW,
SHELL_SCREENSHOT_AREA,
} ShellScreenshotMode;
G_DEFINE_TYPE_WITH_PRIVATE (ShellScreenshot, shell_screenshot, G_TYPE_OBJECT);
static void
@ -257,12 +264,15 @@ do_grab_screenshot (ShellScreenshot *screenshot,
}
static gboolean
should_draw_cursor_image (void)
should_draw_cursor_image (ShellScreenshotMode mode)
{
g_autoptr (GSettings) settings = g_settings_new (A11Y_APPS_SCHEMA);
if (mode == SHELL_SCREENSHOT_WINDOW || !meta_is_wayland_compositor ())
{
g_autoptr (GSettings) settings = g_settings_new (A11Y_APPS_SCHEMA);
if (!g_settings_get_boolean (settings, MAGNIFIER_ACTIVE_KEY))
return TRUE;
if (!g_settings_get_boolean (settings, MAGNIFIER_ACTIVE_KEY))
return TRUE;
}
return FALSE;
}
@ -524,6 +534,7 @@ shell_screenshot_screenshot (ShellScreenshot *screenshot,
{
ClutterActor *stage;
ShellScreenshotPrivate *priv = screenshot->priv;
const char *paint_signal;
GTask *result;
if (priv->filename != NULL) {
@ -543,13 +554,22 @@ shell_screenshot_screenshot (ShellScreenshot *screenshot,
g_task_set_source_tag (result, shell_screenshot_screenshot);
priv->filename = g_strdup (filename);
priv->include_cursor = include_cursor && should_draw_cursor_image ();
priv->include_cursor = FALSE;
stage = CLUTTER_ACTOR (shell_global_get_stage (priv->global));
paint_signal = "actors-painted";
meta_disable_unredirect_for_display (shell_global_get_display (priv->global));
g_signal_connect_after (stage, "paint", G_CALLBACK (grab_screenshot), result);
if (include_cursor)
{
if (should_draw_cursor_image (SHELL_SCREENSHOT_SCREEN))
priv->include_cursor = TRUE;
else
paint_signal = "paint";
}
g_signal_connect_after (stage, paint_signal, G_CALLBACK (grab_screenshot), result);
clutter_actor_queue_redraw (stage);
}
@ -717,7 +737,8 @@ shell_screenshot_screenshot_window (ShellScreenshot *screenshot,
priv->filename = g_strdup (filename);
priv->include_frame = include_frame;
priv->include_cursor = include_cursor && should_draw_cursor_image ();
priv->include_cursor = include_cursor &&
should_draw_cursor_image (SHELL_SCREENSHOT_WINDOW);
stage = CLUTTER_ACTOR (shell_global_get_stage (priv->global));