[PATCH weston v2 06/12] keyboard: Only set toplevel when there is a valid output
Armin Krezović
krezovic.armin at gmail.com
Thu Jun 23 09:59:34 UTC 2016
Currently, the keyboard client is created and the input
panel surface is set as toplevel on the first output it
finds. This does not work in a scenario when there are
no outputs, resulting in weston-keyboard to crash at
startup due to operating on an invalid output pointer.
This makes input panel toplevel setting depend on a
valid output, and if there was no output present at
startup, it will be set toplevel as soon as an output
gets plugged in.
v2:
- Remove dependency on output pointer at startup
- Only setup output_configure_handler after the
keyboard has been created
- Let the output_configure_handler handle toplevel
setting in all cases
Signed-off-by: Armin Krezović <krezovic.armin at gmail.com>
---
clients/keyboard.c | 42 ++++++++++++++++++++++++++++++------------
1 file changed, 30 insertions(+), 12 deletions(-)
diff --git a/clients/keyboard.c b/clients/keyboard.c
index d719764..83082ad 100644
--- a/clients/keyboard.c
+++ b/clients/keyboard.c
@@ -24,6 +24,7 @@
#include "config.h"
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -56,6 +57,7 @@ struct virtual_keyboard {
char *surrounding_text;
uint32_t surrounding_cursor;
struct keyboard *keyboard;
+ bool toplevel;
};
enum key_type {
@@ -953,11 +955,34 @@ global_handler(struct display *display, uint32_t name,
}
static void
-keyboard_create(struct output *output, struct virtual_keyboard *virtual_keyboard)
+set_toplevel(struct output *output, struct virtual_keyboard *virtual_keyboard)
+{
+ struct zwp_input_panel_surface_v1 *ips;
+ struct keyboard *keyboard = virtual_keyboard->keyboard;
+
+ ips = zwp_input_panel_v1_get_input_panel_surface(virtual_keyboard->input_panel,
+ window_get_wl_surface(keyboard->window));
+
+ zwp_input_panel_surface_v1_set_toplevel(ips,
+ output_get_wl_output(output),
+ ZWP_INPUT_PANEL_SURFACE_V1_POSITION_CENTER_BOTTOM);
+
+ virtual_keyboard->toplevel = true;
+}
+
+static
+void display_output_handler(struct output *output, void *data) {
+ struct virtual_keyboard *keyboard = data;
+
+ if (!keyboard->toplevel)
+ set_toplevel(output, keyboard);
+}
+
+static void
+keyboard_create(struct virtual_keyboard *virtual_keyboard)
{
struct keyboard *keyboard;
const struct layout *layout;
- struct zwp_input_panel_surface_v1 *ips;
layout = get_current_layout(virtual_keyboard);
@@ -981,20 +1006,14 @@ keyboard_create(struct output *output, struct virtual_keyboard *virtual_keyboard
layout->columns * key_width,
layout->rows * key_height);
-
- ips = zwp_input_panel_v1_get_input_panel_surface(virtual_keyboard->input_panel,
- window_get_wl_surface(keyboard->window));
-
- zwp_input_panel_surface_v1_set_toplevel(ips,
- output_get_wl_output(output),
- ZWP_INPUT_PANEL_SURFACE_V1_POSITION_CENTER_BOTTOM);
+ display_set_output_configure_handler(virtual_keyboard->display,
+ display_output_handler);
}
int
main(int argc, char *argv[])
{
struct virtual_keyboard virtual_keyboard;
- struct output *output;
memset(&virtual_keyboard, 0, sizeof virtual_keyboard);
@@ -1012,8 +1031,7 @@ main(int argc, char *argv[])
return -1;
}
- output = display_get_output(virtual_keyboard.display);
- keyboard_create(output, &virtual_keyboard);
+ keyboard_create(&virtual_keyboard);
display_run(virtual_keyboard.display);
--
2.9.0
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