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Add click events to i3bar

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If the statusline generator (i.e. i3status) specifies click_events:true
in the protocol header, i3bar will write a JSON array on it's stdin
notifying it if the user clicks on a block.

The exact protocol is documented in docs/i3bar-protocol.
This commit is contained in:
enkore
2013-03-21 11:48:27 +01:00
committed by Michael Stapelberg
parent 5adb09c5fc
commit 58e68940f6
6 changed files with 208 additions and 25 deletions
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61
i3bar/src/xcb.c
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@ -320,24 +320,11 @@ void handle_button(xcb_button_press_event_t *event) {
}
int32_t x = event->event_x >= 0 ? event->event_x : 0;
int32_t original_x = x;
DLOG("Got Button %d\n", event->detail);
switch (event->detail) {
case 1:
/* Left Mousbutton. We determine, which button was clicked
* and set cur_ws accordingly */
TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
DLOG("x = %d\n", x);
if (x >= 0 && x < cur_ws->name_width + 10) {
break;
}
x -= cur_ws->name_width + 11;
}
if (cur_ws == NULL) {
return;
}
break;
case 4:
/* Mouse wheel up. We select the previous ws, if any.
* If there is no more workspace, don’t even send the workspace
@ -358,6 +345,52 @@ void handle_button(xcb_button_press_event_t *event) {
cur_ws = TAILQ_NEXT(cur_ws, tailq);
break;
default:
/* Check if this event regards a workspace button */
TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
DLOG("x = %d\n", x);
if (x >= 0 && x < cur_ws->name_width + 10) {
break;
}
x -= cur_ws->name_width + 11;
}
if (cur_ws == NULL) {
/* No workspace button was pressed.
* Check if a status block has been clicked.
* This of course only has an effect,
* if the child reported bidirectional protocol usage. */
/* First calculate width of tray area */
trayclient *trayclient;
int tray_width = 0;
TAILQ_FOREACH_REVERSE(trayclient, walk->trayclients, tc_head, tailq) {
if (!trayclient->mapped)
continue;
tray_width += (font.height + 2);
}
int block_x = 0, last_block_x;
int offset = (walk->rect.w - (statusline_width + tray_width)) - 10;
x = original_x - offset;
if (x < 0)
return;
struct status_block *block;
TAILQ_FOREACH(block, &statusline_head, blocks) {
last_block_x = block_x;
block_x += block->width + block->x_offset + block->x_append;
if (x <= block_x && x >= last_block_x) {
send_block_clicked(event->detail, block->name, block->instance, event->root_x, event->root_y);
return;
}
}
return;
}
if (event->detail != 1)
return;
}
/* To properly handle workspace names with double quotes in them, we need