michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: function windowUtils() {
michael@0:     return content.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
michael@0:                .getInterface(Components.interfaces.nsIDOMWindowUtils);
michael@0: }
michael@0: 
michael@0: function recvSetViewport(w, h) {
michael@0: 
michael@0:     dump("setting viewport to "+ w +"x"+ h +"\n");
michael@0: 
michael@0:     windowUtils().setCSSViewport(w, h);
michael@0: }
michael@0: 
michael@0: function recvSetDisplayPort(x, y, w, h) {
michael@0: 
michael@0:     dump("setting displayPort to <"+ x +", "+ y +", "+ w +", "+ h +">\n");
michael@0: 
michael@0:     windowUtils().setDisplayPortForElement(x, y, w, h, content.document.documentElement, 0);
michael@0: }
michael@0: 
michael@0: function recvSetResolution(xres, yres) {
michael@0: 
michael@0:     dump("setting xres="+ xres +" yres="+ yres +"\n");
michael@0: 
michael@0:     windowUtils().setResolution(xres, yres);
michael@0: }
michael@0: 
michael@0: function recvScrollBy(dx, dy) {
michael@0:     content.scrollBy(dx, dy);
michael@0: }
michael@0: 
michael@0: function recvScrollTo(x, y) {
michael@0:     content.scrollTo(x, y);
michael@0: }
michael@0: 
michael@0: addMessageListener(
michael@0:     "setViewport",
michael@0:     function (m) { recvSetViewport(m.json.w, m.json.h); }
michael@0: );
michael@0: 
michael@0: addMessageListener(
michael@0:     "setDisplayPort",
michael@0:     function (m) { recvSetDisplayPort(m.json.x, m.json.y,
michael@0:                                       m.json.w, m.json.h); }
michael@0: );
michael@0: 
michael@0: addMessageListener(
michael@0:     "setResolution",
michael@0:     function (m) { recvSetResolution(m.json.xres, m.json.yres); }
michael@0: );
michael@0: 
michael@0: addMessageListener(
michael@0:     "scrollBy",
michael@0:     function(m) { recvScrollBy(m.json.dx, m.json.dy); }
michael@0: );
michael@0: 
michael@0: addMessageListener(
michael@0:     "scrollTo",
michael@0:     function(m) { recvScrollTo(m.json.x, m.json.y); }
michael@0: );