import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/server/tests/browser/browser_canvasframe_helper_04.js

@@ -0,0 +1,98 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test the CanvasFrameAnonymousContentHelper re-inserts the content when the
+// page reloads.
+
+// This makes sure the 'domnode' protocol actor type is known when importing
+// highlighter.
+require("devtools/server/actors/inspector");
+const events = require("sdk/event/core");
+
+const {HighlighterEnvironment} = require("devtools/server/actors/highlighters");
+
+const {
+  CanvasFrameAnonymousContentHelper
+} = require("devtools/server/actors/highlighters/utils/markup");
+
+const TEST_URL_1 = "data:text/html;charset=utf-8,CanvasFrameAnonymousContentHelper test 1";
+const TEST_URL_2 = "data:text/html;charset=utf-8,CanvasFrameAnonymousContentHelper test 2";
+
+add_task(function* () {
+  let browser = yield addTab(TEST_URL_2);
+  let doc = browser.contentDocument;
+
+  let nodeBuilder = () => {
+    let root = doc.createElement("div");
+    let child = doc.createElement("div");
+    child.style = "pointer-events:auto;width:200px;height:200px;background:red;";
+    child.id = "child-element";
+    child.className = "child-element";
+    child.textContent = "test content";
+    root.appendChild(child);
+    return root;
+  };
+
+  info("Building the helper");
+  let env = new HighlighterEnvironment();
+  env.initFromWindow(doc.defaultView);
+  let helper = new CanvasFrameAnonymousContentHelper(env, nodeBuilder);
+
+  info("Get an element from the helper");
+  let el = helper.getElement("child-element");
+
+  info("Try to access the element");
+  is(el.getAttribute("class"), "child-element",
+    "The attribute is correct before navigation");
+  is(el.getTextContent(), "test content",
+    "The text content is correct before navigation");
+
+  info("Add an event listener on the element");
+  let mouseDownHandled = 0;
+  function onMouseDown(e, id) {
+    is(id, "child-element", "The mousedown event was triggered on the element");
+    mouseDownHandled++;
+  }
+  el.addEventListener("mousedown", onMouseDown);
+
+  info("Synthesizing an event on the element");
+  let onDocMouseDown = once(doc, "mousedown");
+  synthesizeMouseDown(100, 100, doc.defaultView);
+  yield onDocMouseDown;
+  is(mouseDownHandled, 1, "The mousedown event was handled once before navigation");
+
+  info("Navigating to a new page");
+  let loaded = BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+  content.location = TEST_URL_2;
+  yield loaded;
+  doc = gBrowser.selectedBrowser.contentWindow.document;
+
+  info("Try to access the element again");
+  is(el.getAttribute("class"), "child-element",
+    "The attribute is correct after navigation");
+  is(el.getTextContent(), "test content",
+    "The text content is correct after navigation");
+
+  info("Synthesizing an event on the element again");
+  onDocMouseDown = once(doc, "mousedown");
+  synthesizeMouseDown(100, 100, doc.defaultView);
+  yield onDocMouseDown;
+  is(mouseDownHandled, 1, "The mousedown event was not handled after navigation");
+
+  info("Destroying the helper");
+  env.destroy();
+  helper.destroy();
+
+  gBrowser.removeCurrentTab();
+});
+
+function synthesizeMouseDown(x, y, win) {
+  // We need to make sure the inserted anonymous content can be targeted by the
+  // event right after having been inserted, and so we need to force a sync
+  // reflow.
+  let forceReflow = win.document.documentElement.offsetWidth;
+  EventUtils.synthesizeMouseAtPoint(x, y, {type: "mousedown"}, win);
+}