/*
A widget has requested focus... Send out the ACTIVATE and DEACTIVATE
triggers, and update necessary vars
*/
void request_focus(struct widget *self) {
handle hself = hlookup(self,NULL);
struct widget *kbdfocus;
/* Already focused? */
if (dts->top->focus==hself) return;
kbdfocus = NULL;
rdhandle((void**)&kbdfocus,PG_TYPE_WIDGET,-1,dts->top->focus);
/* Deactivate the old widget, activate the new */
send_trigger(kbdfocus,PG_TRIGGER_DEACTIVATE,NULL);
dts->top->focus = hself;
appmgr_focus(appmgr_findapp(self));
send_trigger(self,PG_TRIGGER_ACTIVATE,NULL);
/* Scroll in */
scroll_to_divnode(self->in->div);
/* If there's an active hotspot cursor, move it to this widget */
if (dts->top->hotspot_cursor) {
int x,y;
divnode_hotspot_position(self->in->div, &x, &y);
cursor_move(dts->top->hotspot_cursor,x,y,dts->top);
}
}
void infilter_pntr_dispatch_handler(struct infilter *self, u32 trigger, union trigparam *param) {
struct widget *under;
int release_captured = 0;
int accepted = 0;
/* In order to dispatch a pointing event, it must have an associated cursor.
* The normalize filter should have given us a cursor whether the driver had
* one or not, but in case an event was inserted into the pipe with no cursor,
* pass it on. This will usually just run the event off the end of the
* filter chain, but this makes it theoretically possible for a client to pick
* up the cursorless events.
*/
if (!param->mouse.cursor) {
infilter_send(self, trigger, param);
return;
}
/* Move the cursor */
if (trigger==PG_TRIGGER_MOVE) {
int cx,cy;
struct divtree *new_dt, *old_dt;
/* Default to the topmost divtree, but allow the event to override */
if (iserror(rdhandle((void**)&new_dt, PG_TYPE_DIVTREE, -1,
param->mouse.divtree)) || !new_dt)
new_dt = dts->top;
/* If the cursor is already at the destination, throw away this event */
cursor_getposition(param->mouse.cursor,&cx,&cy,&old_dt);
if (cx == param->mouse.x && cy == param->mouse.y && new_dt == old_dt)
return;
cursor_move(param->mouse.cursor,param->mouse.x,param->mouse.y,new_dt);
}
inactivity_reset();
/* Read which widget is under the cursor */
under = NULL;
rdhandle((void**)&under, PG_TYPE_WIDGET, -1, param->mouse.cursor->ctx.widget_under);
/* If the capture_btn is released, release the capture
*/
if ((!(param->mouse.btn & param->mouse.cursor->ctx.capture_btn)) &&
param->mouse.cursor->ctx.widget_capture &&
param->mouse.cursor->ctx.widget_capture != param->mouse.cursor->ctx.widget_under) {
struct widget *capture;
if ((!iserror(rdhandle((void**)&capture, PG_TYPE_WIDGET, -1,
param->mouse.cursor->ctx.widget_capture))) && capture)
release_captured = send_trigger(capture,PG_TRIGGER_RELEASE,param);
accepted++;
param->mouse.cursor->ctx.widget_capture = 0;
param->mouse.cursor->ctx.capture_btn = 0;
}
if (under) {
/* There's an interactive widget under the cursor */
/* Keep track of the most recently clicked widget
*/
if (trigger==PG_TRIGGER_DOWN) {
param->mouse.cursor->ctx.widget_last_clicked = param->mouse.cursor->ctx.widget_under;
/* Also, allow clicks to focus applications */
appmgr_focus(appmgr_findapp(under));
}
/* First send the 'raw' event, then handle the cooked ones. */
if (!release_captured)
accepted += send_propagating_trigger(under,trigger,param);
/* If the mouse is clicked in a widget, it 'captures' future MOVE and RELEASE events
* until this button is released.
*/
if (trigger==PG_TRIGGER_DOWN && !param->mouse.cursor->ctx.widget_capture) {
param->mouse.cursor->ctx.widget_capture = param->mouse.cursor->ctx.widget_under;
param->mouse.cursor->ctx.capture_btn = param->mouse.chbtn;
}
}
/* If a captured widget accepts PG_TRIGGER_DRAG, send it even when the
* mouse is outside its divnodes.
*/
if (trigger==PG_TRIGGER_MOVE && param->mouse.cursor->ctx.widget_capture) {
struct widget *capture;
if ((!iserror(rdhandle((void**)&capture, PG_TYPE_WIDGET, -1,
param->mouse.cursor->ctx.widget_capture))) && capture)
accepted += send_trigger(capture,PG_TRIGGER_DRAG,param);
}
/* If nothing has accepted the event so far, pass it on */
if (!accepted)
infilter_send(self,trigger,param);
}