1 files changed, 106 insertions, 0 deletions
diff --git a/source/blender/windowmanager/intern/wm_tooltip.c b/source/blender/windowmanager/intern/wm_tooltip.c
new file mode 100644
index 00000000000..86ca95ef377
--- /dev/null
+++ b/source/blender/windowmanager/intern/wm_tooltip.c
@@ -0,0 +1,106 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/windowmanager/intern/wm_tooltip.c
+ *  \ingroup wm
+ *
+ * Manages a per-window tool-tip.
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_utildefines.h"
+
+#include "BKE_context.h"
+
+#include "ED_screen.h"
+
+#include "UI_interface.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+void WM_tooltip_timer_init(
+        bContext *C, wmWindow *win, ARegion *ar,
+        wmTooltipInitFn init)
+{
+	bScreen *screen = win->screen;
+	wmWindowManager *wm = CTX_wm_manager(C);
+	if (screen->tool_tip == NULL) {
+		screen->tool_tip = MEM_callocN(sizeof(*screen->tool_tip), __func__);
+	}
+	screen->tool_tip->region_from = ar;
+	screen->tool_tip->timer = WM_event_add_timer(wm, win, TIMER, UI_TOOLTIP_DELAY);
+	screen->tool_tip->init = init;
+}
+
+void WM_tooltip_timer_clear(bContext *C, wmWindow *win)
+{
+	wmWindowManager *wm = CTX_wm_manager(C);
+	bScreen *screen = win->screen;
+	if (screen->tool_tip != NULL) {
+		if (screen->tool_tip->timer != NULL) {
+			WM_event_remove_timer(wm, win, screen->tool_tip->timer);
+			screen->tool_tip->timer = NULL;
+		}
+	}
+}
+
+void WM_tooltip_clear(bContext *C, wmWindow *win)
+{
+	WM_tooltip_timer_clear(C, win);
+	bScreen *screen = win->screen;
+	if (screen->tool_tip != NULL) {
+		if (screen->tool_tip->region) {
+			UI_tooltip_free(C, screen, screen->tool_tip->region);
+			screen->tool_tip->region = NULL;
+		}
+		MEM_freeN(screen->tool_tip);
+		screen->tool_tip = NULL;
+	}
+}
+
+void WM_tooltip_init(bContext *C, wmWindow *win)
+{
+	WM_tooltip_timer_clear(C, win);
+	bScreen *screen = win->screen;
+	if (screen->tool_tip->region) {
+		UI_tooltip_free(C, screen, screen->tool_tip->region);
+		screen->tool_tip->region = NULL;
+	}
+	screen->tool_tip->region = screen->tool_tip->init(
+	        C, screen->tool_tip->region_from, &screen->tool_tip->exit_on_event);
+	if (screen->tool_tip->region == NULL) {
+		WM_tooltip_clear(C, win);
+	}
+}
+
+void WM_tooltip_refresh(bContext *C, wmWindow *win)
+{
+	WM_tooltip_timer_clear(C, win);
+	bScreen *screen = win->screen;
+	if (screen->tool_tip != NULL) {
+		if (screen->tool_tip->region) {
+			UI_tooltip_free(C, screen, screen->tool_tip->region);
+			screen->tool_tip->region = NULL;
+		}
+		WM_tooltip_init(C, win);
+	}
+}