Differential D13441 Diff 51306 source/blender/windowmanager/intern/wm_event_system.c

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source/blender/windowmanager/intern/wm_event_system.c

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* \{ */		* \{ */

void wm_event_free_handler(wmEventHandler *handler)		void wm_event_free_handler(wmEventHandler *handler)
{		{
/* Future extra custom-data free? */		/* Future extra custom-data free? */
MEM_freeN(handler);		MEM_freeN(handler);
}		}

/* Only set context when area/region is part of screen. */		/**
static void wm_handler_op_context(bContext C, wmEventHandler_Op handler, const wmEvent *event)		* Check if the area and/or region are actually part of the screen, and return them if so.
		*/
		static void wm_handler_op_context_get(bContext *C,
		wmEventHandler_Op *handler,
		const wmEvent *event,
		ScrArea **r_area,
		ARegion **r_region)
{		{
wmWindow *win = handler->context.win ? handler->context.win : CTX_wm_window(C);		wmWindow *win = handler->context.win ? handler->context.win : CTX_wm_window(C);
/* It's probably fine to always use #WM_window_get_active_screen() to get the screen. But this		/* It's probably fine to always use #WM_window_get_active_screen() to get the screen. But this
* code has been getting it through context since forever, so play safe and stick to that when		* code has been getting it through context since forever, so play safe and stick to that when
* possible. */		* possible. */
bScreen *screen = handler->context.win ? WM_window_get_active_screen(win) : CTX_wm_screen(C);		bScreen *screen = handler->context.win ? WM_window_get_active_screen(win) : CTX_wm_screen(C);

		*r_area = NULL;
		*r_region = NULL;

if (screen == NULL \|\| handler->op == NULL) {		if (screen == NULL \|\| handler->op == NULL) {
return;		return;
}		}

if (handler->context.area == NULL) {		if (handler->context.area == NULL) {
CTX_wm_area_set(C, NULL);		/* Pass */
}		}
else {		else {
ScrArea *area = NULL;		ScrArea *area = NULL;

ED_screen_areas_iter (win, screen, area_iter) {		ED_screen_areas_iter (win, screen, area_iter) {
if (area_iter == handler->context.area) {		if (area_iter == handler->context.area) {
area = area_iter;		area = area_iter;
break;		break;
}		}
}		}

if (area == NULL) {		if (area == NULL) {
/* When changing screen layouts with running modal handlers (like render display), this		/* When changing screen layouts with running modal handlers (like render display), this
* is not an error to print. */		* is not an error to print. */
if (handler->op == NULL) {		if (handler->op == NULL) {
CLOG_ERROR(WM_LOG_HANDLERS,		CLOG_ERROR(WM_LOG_HANDLERS,
"internal error: handler (%s) has invalid area",		"internal error: handler (%s) has invalid area",
handler->op->type->idname);		handler->op->type->idname);
}		}
}		}
else {		else {
ARegion *region;		ARegion *region;
wmOperator *op = handler->op ? (handler->op->opm ? handler->op->opm : handler->op) : NULL;		wmOperator *op = handler->op ? (handler->op->opm ? handler->op->opm : handler->op) : NULL;
CTX_wm_area_set(C, area);		*r_area = area;

if (op && (op->flag & OP_IS_MODAL_CURSOR_REGION)) {		if (op && (op->flag & OP_IS_MODAL_CURSOR_REGION)) {
region = BKE_area_find_region_xy(area, handler->context.region_type, event->xy);		region = BKE_area_find_region_xy(area, handler->context.region_type, event->xy);
if (region) {		if (region) {
handler->context.region = region;		handler->context.region = region;
}		}
}		}
else {		else {
region = NULL;		region = NULL;
}		}

if (region == NULL) {		if (region == NULL) {
LISTBASE_FOREACH (ARegion *, region_iter, &area->regionbase) {		LISTBASE_FOREACH (ARegion *, region_iter, &area->regionbase) {
region = region_iter;		region = region_iter;
if (region == handler->context.region) {		if (region == handler->context.region) {
break;		break;
}		}
}		}
}		}

/* No warning print here, after full-area and back regions are remade. */		/* No warning print here, after full-area and back regions are remade. */
if (region) {		if (region) {
CTX_wm_region_set(C, region);		*r_region = region;
}		}
}		}
}		}
}		}

		static void wm_handler_op_context(bContext C, wmEventHandler_Op handler, const wmEvent *event)
		{
		ScrArea *area = NULL;
		ARegion *region = NULL;
		wm_handler_op_context_get(C, handler, event, &area, &region);
		CTX_wm_area_set(C, area);
		CTX_wm_region_set(C, region);
		}

void WM_event_remove_handlers(bContext C, ListBase handlers)		void WM_event_remove_handlers(bContext C, ListBase handlers)
{		{
wmWindowManager *wm = CTX_wm_manager(C);		wmWindowManager *wm = CTX_wm_manager(C);

/* C is zero on freeing database, modal handlers then already were freed. */		/* C is zero on freeing database, modal handlers then already were freed. */
wmEventHandler *handler_base;		wmEventHandler *handler_base;
while ((handler_base = BLI_pophead(handlers))) {		while ((handler_base = BLI_pophead(handlers))) {
BLI_assert(handler_base->type != 0);		BLI_assert(handler_base->type != 0);
▲ Show 20 Lines • Show All 520 Lines • ▼ Show 20 Lines	case EVT_FILESELECT_FULL_OPEN: {
action = WM_HANDLER_BREAK;		action = WM_HANDLER_BREAK;
break;		break;
}		}

case EVT_FILESELECT_EXEC:		case EVT_FILESELECT_EXEC:
case EVT_FILESELECT_CANCEL:		case EVT_FILESELECT_CANCEL:
case EVT_FILESELECT_EXTERNAL_CANCEL: {		case EVT_FILESELECT_EXTERNAL_CANCEL: {
wmWindow *ctx_win = CTX_wm_window(C);		wmWindow *ctx_win = CTX_wm_window(C);
		wmEvent *eventstate = ctx_win->eventstate;
		/* The root window of the operation as determined in #WM_event_add_fileselect(). */
		wmWindow *root_win = handler->context.win;
		SeverinAuthorUnsubmitted Done Inline Actions A further improvement could be splitting the file-select handler off from the regular operator handler. Then this could read `fileselect_handler->root_context.win`. Severin: A further improvement could be splitting the file-select handler off from the regular operator…

/* Remove link now, for load file case before removing. */		/* Remove link now, for load file case before removing. */
BLI_remlink(handlers, handler);		BLI_remlink(handlers, handler);

if (val == EVT_FILESELECT_EXTERNAL_CANCEL) {		if (val == EVT_FILESELECT_EXTERNAL_CANCEL) {
/* The window might have been freed already. */		/* The window might have been freed already. */
if (BLI_findindex(&wm->windows, handler->context.win) == -1) {		if (BLI_findindex(&wm->windows, handler->context.win) == -1) {
handler->context.win = NULL;		handler->context.win = NULL;
Show All 19 Lines	case EVT_FILESELECT_EXTERNAL_CANCEL: {
}		}

int win_size[2];		int win_size[2];
bool is_maximized;		bool is_maximized;
ED_fileselect_window_params_get(win, win_size, &is_maximized);		ED_fileselect_window_params_get(win, win_size, &is_maximized);
ED_fileselect_params_to_userdef(file_area->spacedata.first, win_size, is_maximized);		ED_fileselect_params_to_userdef(file_area->spacedata.first, win_size, is_maximized);

if (BLI_listbase_is_single(&file_area->spacedata)) {		if (BLI_listbase_is_single(&file_area->spacedata)) {
BLI_assert(ctx_win != win);		BLI_assert(root_win != win);

wm_window_close(C, wm, win);		wm_window_close(C, wm, win);

CTX_wm_window_set(C, ctx_win); /* #wm_window_close() NULLs. */		CTX_wm_window_set(C, root_win); /* #wm_window_close() NULLs. */
/* Some operators expect a drawable context (for #EVT_FILESELECT_EXEC). */		/* Some operators expect a drawable context (for #EVT_FILESELECT_EXEC). */
wm_window_make_drawable(wm, ctx_win);		wm_window_make_drawable(wm, root_win);
/* Ensure correct cursor position, otherwise, popups may close immediately after		/* Ensure correct cursor position, otherwise, popups may close immediately after
* opening (#UI_BLOCK_MOVEMOUSE_QUIT). */		* opening (#UI_BLOCK_MOVEMOUSE_QUIT). */
wm_cursor_position_get(		wm_cursor_position_get(root_win, &eventstate->xy[0], &eventstate->xy[1]);
ctx_win, &ctx_win->eventstate->xy[0], &ctx_win->eventstate->xy[1]);		wm->winactive = root_win; /* Reports use this... */
wm->winactive = ctx_win; /* Reports use this... */
if (handler->context.win == win) {
handler->context.win = NULL;
}
}		}
else if (file_area->full) {		else if (file_area->full) {
ED_screen_full_prevspace(C, file_area);		ED_screen_full_prevspace(C, file_area);
}		}
else {		else {
ED_area_prevspace(C, file_area);		ED_area_prevspace(C, file_area);
}		}

temp_win = win;		temp_win = win;
break;		break;
}		}

if (!temp_win && ctx_area->full) {		if (!temp_win && ctx_area->full) {
ED_fileselect_params_to_userdef(ctx_area->spacedata.first, NULL, false);		ED_fileselect_params_to_userdef(ctx_area->spacedata.first, NULL, false);
ED_screen_full_prevspace(C, ctx_area);		ED_screen_full_prevspace(C, ctx_area);
}		}
}		}

wm_handler_op_context(C, handler, ctx_win->eventstate);		CTX_wm_window_set(C, root_win);
		wm_handler_op_context(C, handler, eventstate);
		/* At this point context is supposed to match the root context determined by
		* #WM_event_add_fileselect(). */
		BLI_assert(!CTX_wm_area(C) \|\| (CTX_wm_area(C) == handler->context.area));
		BLI_assert(!CTX_wm_region(C) \|\| (CTX_wm_region(C) == handler->context.region));

ScrArea *handler_area = CTX_wm_area(C);		ScrArea *handler_area = CTX_wm_area(C);
/* Make sure new context area is ready, the operator callback may operate on it. */		/* Make sure new context area is ready, the operator callback may operate on it. */
if (handler_area) {		if (handler_area) {
ED_area_do_refresh(C, handler_area);		ED_area_do_refresh(C, handler_area);
}		}

/* Needed for #UI_popup_menu_reports. */		/* Needed for #UI_popup_menu_reports. */

if (val == EVT_FILESELECT_EXEC) {		if (val == EVT_FILESELECT_EXEC) {
int retval;		int retval;

		/* FIXME this should poll here! */
		SeverinAuthorUnsubmitted Done Inline Actions Want to do this separately. Severin: Want to do this separately.

if (handler->op->type->flag & OPTYPE_UNDO) {		if (handler->op->type->flag & OPTYPE_UNDO) {
wm->op_undo_depth++;		wm->op_undo_depth++;
}		}

retval = handler->op->type->exec(C, handler->op);		retval = handler->op->type->exec(C, handler->op);

/* XXX check this carefully, `CTX_wm_manager(C) == wm` is a bit hackish. */		/* XXX check this carefully, `CTX_wm_manager(C) == wm` is a bit hackish. */
if (handler->op->type->flag & OPTYPE_UNDO && CTX_wm_manager(C) == wm) {		if (handler->op->type->flag & OPTYPE_UNDO && CTX_wm_manager(C) == wm) {
▲ Show 20 Lines • Show All 1,384 Lines • ▼ Show 20 Lines	LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
event.type = EVT_FILESELECT;		event.type = EVT_FILESELECT;
event.val = eventval;		event.val = eventval;
event.customdata = ophandle; /* Only as void pointer type check. */		event.customdata = ophandle; /* Only as void pointer type check. */

wm_event_add(win, &event);		wm_event_add(win, &event);
}		}
}		}

		/**
		* From the currently active window (as defined by context), try to find a window that is
		* appropriate for use as root window of a modal File Browser. The root window will be the parent
		* of the File Browser and it will be used to execute the file operator after closing the File
		* Browser.
		*
		* An appropriate window is either of the following:
		* * A window that does not yet contain a modal File Browser. This is checked using
		* #ED_fileselect_handler_area_find_any().
		* * A window with a maximized/full-screen. It should not be possible to maximize a temporary
		* window like the modal File Browser, so this way we can find windows where a File Browser was
		* opened from using #USER_TEMP_SPACE_DISPLAY_FULLSCREEN.
		*
		* If no window can be found using the active window from context, return the first registered
		* window (which can be assumed to be a regular window, e.g. no modal File Browser).
		*/
		static wmWindow wm_event_find_fileselect_root_window_from_context(const bContext C)
		{
		wmWindow *ctx_win = CTX_wm_window(C);

		for (wmWindow *ctx_win_or_parent = ctx_win; ctx_win_or_parent;
		ctx_win_or_parent = ctx_win_or_parent->parent) {
		ScrArea *file_area = ED_fileselect_handler_area_find_any(ctx_win_or_parent);

		if (!file_area) {
		return ctx_win_or_parent;
		}

		if (file_area->full) {
		return ctx_win_or_parent;
		}
		}

		/* Fallback to the first window. */
		const wmWindowManager *wm = CTX_wm_manager(C);
		BLI_assert(!ED_fileselect_handler_area_find_any(wm->windows.first));
		return wm->windows.first;
		}

/* Operator is supposed to have a filled "path" property. */		/* Operator is supposed to have a filled "path" property. */
/* Optional property: file-type (XXX enum?) */		/* Optional property: file-type (XXX enum?) */

void WM_event_add_fileselect(bContext C, wmOperator op)		void WM_event_add_fileselect(bContext C, wmOperator op)
{		{
wmWindowManager *wm = CTX_wm_manager(C);		wmWindowManager *wm = CTX_wm_manager(C);
wmWindow *win = CTX_wm_window(C);		wmWindow *ctx_win = CTX_wm_window(C);
const bool is_temp_screen = WM_window_is_temp_screen(win);
		/* The following vars define the root context. That is essentially the "parent" context of the
		* File Browser operation, to be restored for eventually executing the file operation. */
		wmWindow *root_win = wm_event_find_fileselect_root_window_from_context(C);
		/* Determined later. */
		ScrArea *root_area = NULL;
		ARegion *root_region = NULL;

/* Close any popups, like when opening a file browser from the splash. */		/* Close any popups, like when opening a file browser from the splash. */
UI_popup_handlers_remove_all(C, &win->modalhandlers);		UI_popup_handlers_remove_all(C, &root_win->modalhandlers);

		CTX_wm_window_set(C, root_win);

if (!is_temp_screen) {		/* The root window may already have a File Browser open. Cancel it if so, only 1 should be open
/* Only allow 1 file selector open per window. */		* per window. The root context of this operation is also used for the new operation. */
LISTBASE_FOREACH_MUTABLE (wmEventHandler *, handler_base, &win->modalhandlers) {		LISTBASE_FOREACH_MUTABLE (wmEventHandler *, handler_base, &root_win->modalhandlers) {
if (handler_base->type == WM_HANDLER_TYPE_OP) {		if (handler_base->type == WM_HANDLER_TYPE_OP) {
wmEventHandler_Op handler = (wmEventHandler_Op )handler_base;		wmEventHandler_Op handler = (wmEventHandler_Op )handler_base;
if (handler->is_fileselect == false) {		if (handler->is_fileselect == false) {
continue;		continue;
}		}

ScrArea *file_area = ED_fileselect_handler_area_find(win, handler->op);		wm_handler_op_context_get(C, handler, ctx_win->eventstate, &root_area, &root_region);

		ScrArea *file_area = ED_fileselect_handler_area_find(root_win, handler->op);

if (file_area) {		if (file_area) {
CTX_wm_area_set(C, file_area);		CTX_wm_area_set(C, file_area);
wm_handler_fileselect_do(C, &win->modalhandlers, handler, EVT_FILESELECT_CANCEL);		wm_handler_fileselect_do(C, &root_win->modalhandlers, handler, EVT_FILESELECT_CANCEL);
}		}
/* If not found we stop the handler without changing the screen. */		/* If not found we stop the handler without changing the screen. */
else {		else {
wm_handler_fileselect_do(		wm_handler_fileselect_do(
C, &win->modalhandlers, handler, EVT_FILESELECT_EXTERNAL_CANCEL);		C, &root_win->modalhandlers, handler, EVT_FILESELECT_EXTERNAL_CANCEL);
}		}
}		}
}		}

		BLI_assert(root_win != NULL);
		/* When not reusing the root context from a previous file browsing operation, use the current
		* area & region, if they are inside the root window. */
		if (!root_area && ctx_win == root_win) {
		root_area = CTX_wm_area(C);
		root_region = CTX_wm_region(C);
}		}

wmEventHandler_Op handler = MEM_callocN(sizeof(handler), __func__);		wmEventHandler_Op handler = MEM_callocN(sizeof(handler), __func__);
handler->head.type = WM_HANDLER_TYPE_OP;		handler->head.type = WM_HANDLER_TYPE_OP;

handler->is_fileselect = true;		handler->is_fileselect = true;
handler->op = op;		handler->op = op;
handler->context.win = CTX_wm_window(C);		handler->context.win = root_win;
handler->context.area = CTX_wm_area(C);		handler->context.area = root_area;
handler->context.region = CTX_wm_region(C);		handler->context.region = root_region;

BLI_addhead(&win->modalhandlers, handler);		BLI_addhead(&root_win->modalhandlers, handler);

/* Check props once before invoking if check is available		/* Check props once before invoking if check is available
* ensures initial properties are valid. */		* ensures initial properties are valid. */
if (op->type->check) {		if (op->type->check) {
op->type->check(C, op); /* Ignore return value. */		op->type->check(C, op); /* Ignore return value. */
}		}

WM_event_fileselect_event(wm, op, EVT_FILESELECT_FULL_OPEN);		WM_event_fileselect_event(wm, op, EVT_FILESELECT_FULL_OPEN);

		CTX_wm_window_set(C, ctx_win);
}		}

/** \} */		/** \} */

/* -------------------------------------------------------------------- */		/* -------------------------------------------------------------------- */
/** \name Modal Operator Handling		/** \name Modal Operator Handling
* \{ */		* \{ */

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