Merge pull request #1363 from dtc/sdl-touch

Add basic touch support that translates to mouse events.

1 files changed, 40 insertions, 0 deletions

diff --git a/src/library_sdl.js b/src/library_sdl.js
index 646aa54c..b64a34ef 100644
--- a/src/library_sdl.js
+++ b/src/library_sdl.js
@@ -361,8 +361,48 @@ var LibrarySDL = {
       SDL.surfaces[surf] = null;
     },
 
+    touchX:0, touchY: 0,
+
     receiveEvent: function(event) {
       switch(event.type) {
+        case 'touchstart':
+          event.preventDefault();
+          var touch = event.touches[0];
+          touchX = touch.pageX;
+          touchY = touch.pageY;
+          var event = {
+            type: 'mousedown',
+            button: 0,
+            pageX: touchX,
+            pageY: touchY
+          };
+          SDL.DOMButtons[0] = 1;
+          SDL.events.push(event);
+          break;
+        case 'touchmove':
+          event.preventDefault();
+          var touch = event.touches[0];
+          touchX = touch.pageX;
+          touchY = touch.pageY;
+          event = {
+            type: 'mousemove',
+            button: 0,
+            pageX: touchX,
+            pageY: touchY
+          };
+          SDL.events.push(event);
+          break;
+        case 'touchend':
+          event.preventDefault();
+          event = {
+            type: 'mouseup',
+            button: 0,
+            pageX: touchX,
+            pageY: touchY
+          };
+          SDL.DOMButtons[0] = 0;
+          SDL.events.push(event);
+          break;
         case 'mousemove':
           if (Browser.pointerLock) {
             // workaround for firefox bug 750111