[cc] Initial checkin of cc-frame-viewer

tools/cc-frame-viewer/app/viewer.js

+/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+'use strict';
+
+base.exportTo('ccfv', function() {
+  function assert(bool) {
+    if (bool)
+      return;
+    throw new Error("Expected true");
+  }
+
+  chromeapp.addEventListener('launch', init);
+  chrome.app.window.current().onClosed.addListener(onClosed);
+  chrome.app.window.current().focus();
+
+  var viewerEl;
+  function init(launch_event) {
+    viewerEl = document.querySelector('#viewer')
+    window.g_viewerEl = viewerEl;
+
+    var num_args = launch_event.args[0]
+    chromeapp.sendEvent('load', 'please', onLoadResult, onLoadError);
+  }
+
+  function onLoadResult(res) {
+    var trace = JSON.parse(res);
+
+    window.g_lastResult = trace;
+    var model = new ccfv.Model();
+    model.initFromTraceEvents(trace);
+    window.g_model = model;
+
+    var modelViewEl = new ccfv.ModelView();
+    modelViewEl.model = model;
+    window.g_modelViewEl = modelViewEl;
+
+    viewerEl.appendChild(modelViewEl);
+  }
+
+  function onLoadError(err) {
+    viewerEl.textContent = 'error loading: ' + err;
+  }
+
+  function onClosed() {
+    chromeapp.exit(1);
+  }
+
+});