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#include <assert.h>
#include "any_log.h"
#include "util.h"
#include "layout.h"
#include "event.h"
#include "block.h"
const char *event_type_to_string(event_type_t type)
{
const char *types[] = {
"hover",
"left_click",
"middle_click",
"right_click",
"scroll_up",
"scroll_down",
"trigger",
};
assert(type >= EVENT_HOVER && type <= EVENT_TRIGGER);
return types[type];
}
bool event_is_hover(event_t event)
{
return event.type == EVENT_HOVER;
}
bool event_is_click(event_t event)
{
return event.type == EVENT_LEFT_CLICK
|| event.type == EVENT_MIDDLE_CLICK
|| event.type == EVENT_RIGHT_CLICK;
}
bool event_is_scroll(event_t event)
{
return event.type == EVENT_SCROLL_UP
|| event.type == EVENT_SCROLL_DOWN;
}
static bool event_dispatch_mouse(layout_t *layout, event_t event)
{
int width = layout->width - 2 * layout->x_padding;
int height = layout->height - 2 * layout->y_padding;
if (!check_capsule(event.x, event.y, layout->x, layout->y, width, height))
return false;
for (int i = 0; i < layout->n_children; i++) {
if (event_dispatch_mouse(&layout->children[i], event))
return true;
}
// XXX
if (event_is_hover(event)) return false;
block_event_t event_fn = layout->block->type == BLOCK_SPEC
? ((block_spec_t *)layout->block)->event_fn
: NULL;
log_value_debug("Block received a mouse interaction",
"s:event", event_type_to_string(event.type),
"i:event_x", event.x,
"i:event_y", event.y,
"s:label", layout->block->label,
"i:x", layout->x,
"i:y", layout->y,
"i:width", layout->width,
"i:height", layout->height,
"b:callback", event_fn != NULL);
if (event_fn != NULL) {
event_fn(layout, event);
log_trace("Completed event callback");
}
return true;
}
static void event_dispatch_once(window_t *window, layout_t *layout, xcb_generic_event_t *xevent)
{
int type = xevent->response_type & ~0x80;
switch (type) {
case 0: {
xcb_generic_error_t *error = (xcb_generic_error_t *)xevent;
const char *extension = NULL;
const char *name = xcb_errors_get_name_for_error(window->display->errors, error->error_code, &extension);
const char *major = xcb_errors_get_name_for_major_code(window->display->errors, error->major_code);
const char *minor = xcb_errors_get_name_for_minor_code(window->display->errors, error->major_code, error->minor_code);
log_value_error("Xcb error",
"s:name", name,
"s:extension", extension ? extension : "none",
"s:major", major,
"s:minor", minor ? minor : "none",
"u:resource", (unsigned int)error->resource_id,
"u:sequence", (unsigned int)error->sequence);
// TODO: Handle errors instead of aborting
abort();
break;
}
case XCB_EXPOSE: {
xcb_expose_event_t *expose = (xcb_expose_event_t *)xevent;
log_trace("Processing 'Expose' event");
// Redraw
(void)expose;
break;
}
case XCB_CREATE_NOTIFY: {
xcb_create_notify_event_t *create = (xcb_create_notify_event_t *)xevent;
log_trace("Processing 'CreateNotify' event");
(void)create;
if (window->cw_params.override_redirect) break;
xcb_circulate_window(window->display->connection, XCB_CIRCULATE_RAISE_LOWEST, window->window);
break;
}
case XCB_LEAVE_NOTIFY: {
xcb_leave_notify_event_t *leave = (xcb_leave_notify_event_t *)xevent;
log_trace("Processing 'LeaveNotify' event");
if (leave->event != window->window) break;
// Leaving
break;
}
case XCB_BUTTON_RELEASE: {
xcb_button_release_event_t *button = (xcb_button_release_event_t *)xevent;
log_trace("Processing 'ButtonRelease' event");
if (button->detail < XCB_BUTTON_INDEX_1 || button->detail > XCB_BUTTON_INDEX_5) {
log_value_trace("Ignoring button release",
"u:value", button->detail);
break;
}
event_t event = {
.x = button->event_x,
.y = button->event_y,
.type = button->detail,
};
event_dispatch_mouse(layout, event);
break;
}
case XCB_PROPERTY_NOTIFY: {
xcb_property_notify_event_t *property = (xcb_property_notify_event_t *)xevent;
log_trace("Processing 'PropertyNotify' event");
if (property->atom == XCB_ATOM_RESOURCE_MANAGER) {
display_update_xrm(window->display);
display_update_scale(window->display);
// Redraw
}
break;
}
case XCB_MOTION_NOTIFY: {
xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *)xevent;
log_trace("Processing 'MotionNotify' event");
event_t event = {
.x = motion->event_x,
.y = motion->event_y,
.type = EVENT_HOVER,
};
event_dispatch_mouse(layout, event);
break;
}
default: {
const char *extension = NULL;
const char *name = xcb_errors_get_name_for_xcb_event(window->display->errors, xevent, &extension);
log_value_trace("Ignoring Xcb event",
"s:name", name,
"u:type", type,
"s:extension", extension ? extension : "none");
break;
}
}
}
void event_dispatch(window_t *window, layout_t *layout)
{
xcb_generic_event_t *xevent, *motion = NULL;
while ((xevent = xcb_poll_for_event(window->display->connection)) != NULL) {
int type = xevent->response_type & ~0x80;
if (type == XCB_MOTION_NOTIFY) {
free(motion);
motion = xevent;
continue;
}
event_dispatch_once(window, layout, xevent);
free(xevent);
}
// We only consider the last motion notify received
//
if (motion != NULL) {
event_dispatch_once(window, layout, motion);
free(motion);
}
}
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