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Merge pull request #1624 from Airblader/feature-1058

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Position i3-input at window with input focus
This commit is contained in:
Michael Stapelberg 2015-04-01 23:56:06 -07:00
commit 9b671fca8d
1 changed files with 50 additions and 4 deletions
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48
i3-input/main.c
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@ -314,6 +314,50 @@ static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press
return 1;
}
static xcb_rectangle_t get_window_position(void) {
xcb_rectangle_t result = (xcb_rectangle_t){logical_px(50), logical_px(50), logical_px(500), font.height + logical_px(8)};
xcb_get_input_focus_reply_t *input_focus = NULL;
xcb_get_geometry_reply_t *geometry = NULL;
xcb_translate_coordinates_reply_t *coordinates = NULL;
/* In rare cases, the window holding the input focus might disappear while we are figuring out its
* position. To avoid this, we grab the server in the meantime. */
xcb_grab_server(conn);
input_focus = xcb_get_input_focus_reply(conn, xcb_get_input_focus(conn), NULL);
if (input_focus == NULL || input_focus->focus == XCB_NONE) {
DLOG("Failed to receive the current input focus or no window has the input focus right now.\n");
goto free_resources;
}
geometry = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, input_focus->focus), NULL);
if (geometry == NULL) {
DLOG("Failed to received window geometry.\n");
goto free_resources;
}
coordinates = xcb_translate_coordinates_reply(
conn, xcb_translate_coordinates(conn, input_focus->focus, root, geometry->x, geometry->y), NULL);
if (coordinates == NULL) {
DLOG("Failed to translate coordinates.\n");
goto free_resources;
}
DLOG("Determined coordinates of window with input focus at x = %i / y = %i", coordinates->dst_x, coordinates->dst_y);
result.x += coordinates->dst_x;
result.y += coordinates->dst_y;
free_resources:
xcb_ungrab_server(conn);
xcb_flush(conn);
FREE(input_focus);
FREE(geometry);
FREE(coordinates);
return result;
}
int main(int argc, char *argv[]) {
format = strdup("%s");
socket_path = getenv("I3SOCK");
@ -402,6 +446,8 @@ int main(int argc, char *argv[]) {
if (prompt != NULL)
prompt_offset = predict_text_width(prompt);
const xcb_rectangle_t win_pos = get_window_position();
/* Open an input window */
win = xcb_generate_id(conn);
xcb_create_window(
@ -409,7 +455,7 @@ int main(int argc, char *argv[]) {
XCB_COPY_FROM_PARENT,
win, /* the window id */
root, /* parent == root */
logical_px(50), logical_px(50), logical_px(500), font.height + logical_px(8), /* dimensions */
win_pos.x, win_pos.y, win_pos.width, win_pos.height, /* dimensions */
0, /* X11 border = 0, we draw our own */
XCB_WINDOW_CLASS_INPUT_OUTPUT,
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */