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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifdef WEBOS
+
+#include "common/scummsys.h"
+#include "sys/time.h"
+#include "time.h"
+
+#include "backends/events/webossdl/webossdl-events.h"
+#include "gui/message.h"
+
+// Inidicates if gesture area is pressed down or not.
+static bool gestureDown = false;
+
+// The timestamp when gesture area was pressed down.
+static int gestureDownTime = 0;
+
+// The timestamp when screen was pressed down.
+static int screenDownTime = 0;
+
+// The timestamp when a possible drag operation was triggered.
+static int dragStartTime = 0;
+
+// The index of the motion pointer.
+static int motionPtrIndex = -1;
+
+// The maximum horizontal motion during dragging (For tap recognition).
+static int dragDiffX = 0;
+
+// The maximum vertical motion during dragging (For tap recognition).
+static int dragDiffY = 0;
+
+// Indicates if we are in drag mode.
+static bool dragging = false;
+
+// The current mouse position on the screen.
+static int curX = 0, curY = 0;
+
+// The time (seconds after 1/1/1970) when program started.
+static time_t programStartTime = time(0);
+
+/**
+ * Returns the number of passed milliseconds since program start.
+ *
+ * @return The number of passed milliseconds.
+ */
+static time_t getMillis()
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (time(0) - programStartTime) * 1000 + tv.tv_usec / 1000;
+}
+
+/**
+ * WebOS devices only have a Shift key and a CTRL key. There is also an Alt
+ * key (the orange key) but this is already processed by WebOS to change the
+ * mode of the keys so ScummVM must not use this key as a modifier. Instead
+ * pressing down the gesture area is used as Alt key.
+ *
+ * @param mod The pressed key modifier as detected by SDL.
+ * @param event The ScummVM event to setup.
+ */
+void WebOSSdlEventSource::SDLModToOSystemKeyFlags(SDLMod mod,
+ Common::Event &event) {
+ event.kbd.flags = 0;
+
+ if (mod & KMOD_SHIFT)
+ event.kbd.flags |= Common::KBD_SHIFT;
+ if (mod & KMOD_CTRL)
+ event.kbd.flags |= Common::KBD_CTRL;
+ if (gestureDown)
+ event.kbd.flags |= Common::KBD_ALT;
+}
+
+/**
+ * Before calling the original SDL implementation this method checks if the
+ * gesture area is pressed down.
+ *
+ * @param ev The SDL event
+ * @param event The ScummVM event.
+ * @return True if event was processed, false if not.
+ */
+bool WebOSSdlEventSource::handleKeyDown(SDL_Event &ev, Common::Event &event) {
+ // Handle gesture area tap.
+ if (ev.key.keysym.sym == SDLK_WORLD_71) {
+ gestureDown = true;
+ gestureDownTime = getMillis();
+ return true;
+ }
+
+ // Call original SDL key handler.
+ return SdlEventSource::handleKeyDown(ev, event);
+}
+
+/**
+ * Before calling the original SDL implementation this method checks if the
+ * gesture area has been released.
+ *
+ * @param ev The SDL event
+ * @param event The ScummVM event.
+ * @return True if event was processed, false if not.
+ */
+bool WebOSSdlEventSource::handleKeyUp(SDL_Event &ev, Common::Event &event) {
+ // Handle gesture area tap.
+ if (ev.key.keysym.sym == SDLK_WORLD_71) {
+ gestureDown = false;
+ return true;
+ }
+
+ // Call original SDL key handler.
+ return SdlEventSource::handleKeyUp(ev, event);
+}
+
+/**
+ * Handles mouse button press.
+ *
+ * @param ev The SDL event
+ * @param event The ScummVM event.
+ * @return True if event was processed, false if not.
+ */
+bool WebOSSdlEventSource::handleMouseButtonDown(SDL_Event &ev, Common::Event &event) {
+ if (motionPtrIndex == -1) {
+ motionPtrIndex = ev.button.which;
+ dragDiffX = 0;
+ dragDiffY = 0;
+ screenDownTime = getMillis();
+
+ // Start dragging when pressing the screen shortly after a tap.
+ if (getMillis() - dragStartTime < 250) {
+ dragging = true;
+ event.type = Common::EVENT_LBUTTONDOWN;
+ fillMouseEvent(event, curX, curY);
+ }
+ }
+ return true;
+}
+
+/**
+ * Handles mouse button release.
+ *
+ * @param ev The SDL event
+ * @param event The ScummVM event.
+ * @return True if event was processed, false if not.
+ */
+bool WebOSSdlEventSource::handleMouseButtonUp(SDL_Event &ev, Common::Event &event) {
+ if (motionPtrIndex == ev.button.which) {
+ motionPtrIndex = -1;
+
+ // When drag mode was active then simply send a mouse up event
+ if (dragging)
+ {
+ event.type = Common::EVENT_LBUTTONUP;
+ fillMouseEvent(event, curX, curY);
+ dragging = false;
+ return true;
+ }
+
+ // When mouse was moved 5 pixels or less then emulate a mouse button
+ // click.
+ if (ABS(dragDiffX) < 6 && ABS(dragDiffY) < 6)
+ {
+ int duration = getMillis() - screenDownTime;
+
+ // When screen was pressed for less than 500ms then emulate a
+ // left mouse click.
+ if (duration < 500) {
+ event.type = Common::EVENT_LBUTTONUP;
+ fillMouseEvent(event, curX, curY);
+ g_system->getEventManager()->pushEvent(event);
+ event.type = Common::EVENT_LBUTTONDOWN;
+ dragStartTime = getMillis();
+ }
+
+ // When screen was pressed for less than 1000ms then emulate a
+ // right mouse click.
+ else if (duration < 1000) {
+ event.type = Common::EVENT_RBUTTONUP;
+ fillMouseEvent(event, curX, curY);
+ g_system->getEventManager()->pushEvent(event);
+ event.type = Common::EVENT_RBUTTONDOWN;
+ }
+
+ // When screen was pressed for more than 1000ms then emulate a
+ // middle mouse click.
+ else {
+ event.type = Common::EVENT_MBUTTONUP;
+ fillMouseEvent(event, curX, curY);
+ g_system->getEventManager()->pushEvent(event);
+ event.type = Common::EVENT_MBUTTONDOWN;
+ }
+
+ }
+ }
+ return true;
+}
+
+/**
+ * Handles mouse motion.
+ *
+ * @param ev The SDL event
+ * @param event The ScummVM event.
+ * @return True if event was processed, false if not.
+ */
+bool WebOSSdlEventSource::handleMouseMotion(SDL_Event &ev, Common::Event &event) {
+ if (ev.motion.which == motionPtrIndex) {
+ int screenX = g_system->getWidth();
+ int screenY = g_system->getHeight();
+ curX = MIN(screenX, MAX(0, curX + ev.motion.xrel));
+ curY = MIN(screenY, MAX(0, curY + ev.motion.yrel));
+ dragDiffX += ev.motion.xrel;
+ dragDiffY += ev.motion.yrel;
+ event.type = Common::EVENT_MOUSEMOVE;
+ fillMouseEvent(event, curX, curY);
+ }
+ return true;
+}
+
+#endif