1 files changed, 92 insertions, 0 deletions
diff --git a/cursor.js b/cursor.js
new file mode 100644
index 0000000..e3f6e0e
--- /dev/null
+++ b/cursor.js
@@ -0,0 +1,92 @@
+"use strict";
+/*
+   Copyright (C) 2012 by Jeremy P. White <jwhite@codeweavers.com>
+
+   This file is part of spice-html5.
+
+   spice-html5 is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   spice-html5 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 Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with spice-html5.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+/*----------------------------------------------------------------------------
+**  SpiceCursorConn
+**      Drive the Spice Cursor Channel
+**--------------------------------------------------------------------------*/
+function SpiceCursorConn()
+{
+    SpiceConn.apply(this, arguments);
+}
+
+SpiceCursorConn.prototype = Object.create(SpiceConn.prototype);
+SpiceCursorConn.prototype.process_channel_message = function(msg)
+{
+    if (msg.type == SPICE_MSG_CURSOR_INIT)
+    {
+        var cursor_init = new SpiceMsgCursorInit(msg.data);
+        DEBUG > 1 && console.log("SpiceMsgCursorInit");
+        if (this.parent && this.parent.inputs &&
+            this.parent.inputs.mouse_mode == SPICE_MOUSE_MODE_SERVER)
+        {
+            // FIXME - this imagines that the server actually
+            //          provides the current cursor position,
+            //          instead of 0,0.  As of May 11, 2012,
+            //          that assumption was false :-(.
+            this.parent.inputs.mousex = cursor_init.position.x;
+            this.parent.inputs.mousey = cursor_init.position.y;
+        }
+        // FIXME - We don't handle most of the parameters here...
+        return true;
+    }
+
+    if (msg.type == SPICE_MSG_CURSOR_SET)
+    {
+        var cursor_set = new SpiceMsgCursorSet(msg.data);
+        DEBUG > 1 && console.log("SpiceMsgCursorSet");
+        if (cursor_set.flags & SPICE_CURSOR_FLAGS_NONE)
+        {
+            document.getElementById(this.parent.screen_id).style.cursor = "none";
+            return true;
+        }
+
+        if (cursor_set.flags > 0)
+            this.log_warn("FIXME: No support for cursor flags " + cursor_set.flags);
+
+        if (cursor_set.cursor.header.type != SPICE_CURSOR_TYPE_ALPHA)
+        {
+            this.log_warn("FIXME: No support for cursor type " + cursor_set.cursor.header.type);
+            return false;
+        }
+
+        this.set_cursor(cursor_set.cursor);
+
+        return true;
+    }
+
+    if (msg.type == SPICE_MSG_CURSOR_HIDE)
+    {
+        DEBUG > 1 && console.log("SpiceMsgCursorHide");
+        document.getElementById(this.parent.screen_id).style.cursor = "none";
+        return true;
+    }
+
+    return false;
+}
+
+SpiceCursorConn.prototype.set_cursor = function(cursor)
+{
+    var pngstr = create_rgba_png(cursor.header.height, cursor.header.width, cursor.data);
+    var curstr = 'url(data:image/png,' + pngstr + ') ' + 
+        cursor.header.hot_spot_x + ' ' + cursor.header.hot_spot_y + ", default";
+    document.getElementById(this.parent.screen_id).style.cursor = curstr;
+}