1 files changed, 135 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_treeWidget_mouse_interaction.js b/devtools/client/shared/test/browser_treeWidget_mouse_interaction.js
new file mode 100644
index 000000000..f42fd16ad
--- /dev/null
+++ b/devtools/client/shared/test/browser_treeWidget_mouse_interaction.js
@@ -0,0 +1,135 @@
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that mouse interaction works fine with tree widget
+
+const TEST_URI = "data:text/html;charset=utf-8,<head>" +
+  "<link rel='stylesheet' type='text/css' href='chrome://devtools/skin/widg" +
+  "ets.css'></head><body><div></div><span></span></body>";
+const {TreeWidget} = require("devtools/client/shared/widgets/TreeWidget");
+
+add_task(function* () {
+  yield addTab("about:blank");
+  let [host,, doc] = yield createHost("bottom", TEST_URI);
+
+  let tree = new TreeWidget(doc.querySelector("div"), {
+    defaultType: "store"
+  });
+
+  populateTree(tree, doc);
+  yield testMouseInteraction(tree);
+
+  tree.destroy();
+  host.destroy();
+  gBrowser.removeCurrentTab();
+});
+
+function populateTree(tree, doc) {
+  tree.add([{
+    id: "level1",
+    label: "Level 1"
+  }, {
+    id: "level2-1",
+    label: "Level 2"
+  }, {
+    id: "level3-1",
+    label: "Level 3 - Child 1",
+    type: "dir"
+  }]);
+  tree.add(["level1", "level2-1", { id: "level3-2", label: "Level 3 - Child 2"}]);
+  tree.add(["level1", "level2-1", { id: "level3-3", label: "Level 3 - Child 3"}]);
+  tree.add(["level1", {
+    id: "level2-2",
+    label: "Level 2.1"
+  }, {
+    id: "level3-1",
+    label: "Level 3.1"
+  }]);
+  tree.add([{
+    id: "level1",
+    label: "Level 1"
+  }, {
+    id: "level2",
+    label: "Level 2"
+  }, {
+    id: "level3",
+    label: "Level 3",
+    type: "js"
+  }]);
+  tree.add(["level1.1", "level2", {id: "level3", type: "url"}]);
+
+  // Adding a new non text item in the tree.
+  let node = doc.createElement("div");
+  node.textContent = "Foo Bar";
+  node.className = "foo bar";
+  tree.add([{
+    id: "level1.2",
+    node: node,
+    attachment: {
+      foo: "bar"
+    }
+  }]);
+}
+
+// Sends a click event on the passed DOM node in an async manner
+function click(node) {
+  let win = node.ownerDocument.defaultView;
+  executeSoon(() => EventUtils.synthesizeMouseAtCenter(node, {}, win));
+}
+
+/**
+ * Tests if clicking the tree items does the expected behavior
+ */
+function* testMouseInteraction(tree) {
+  info("Testing mouse interaction with the tree");
+  let event;
+  let pass = (e, d, a) => event.resolve([e, d, a]);
+
+  ok(!tree.selectedItem, "Nothing should be selected beforehand");
+
+  tree.once("select", pass);
+  let node = tree.root.children.firstChild.firstChild;
+  info("clicking on first top level item");
+  event = defer();
+  ok(!node.classList.contains("theme-selected"),
+     "Node should not have selected class before clicking");
+  click(node);
+  let [, data, attachment] = yield event.promise;
+  ok(node.classList.contains("theme-selected"),
+     "Node has selected class after click");
+  is(data[0], "level1.2", "Correct tree path is emitted");
+  ok(attachment && attachment.foo, "Correct attachment is emitted");
+  is(attachment.foo, "bar", "Correct attachment value is emitted");
+
+  info("clicking second top level item with children to check if it expands");
+  let node2 = tree.root.children.firstChild.nextSibling.firstChild;
+  event = defer();
+  // node should not have selected class
+  ok(!node2.classList.contains("theme-selected"),
+     "New node should not have selected class before clicking");
+  ok(!node2.hasAttribute("expanded"), "New node is not expanded before clicking");
+  tree.once("select", pass);
+  click(node2);
+  [, data, attachment] = yield event.promise;
+  ok(node2.classList.contains("theme-selected"),
+     "New node has selected class after clicking");
+  is(data[0], "level1", "Correct tree path is emitted for new node");
+  ok(!attachment, "null attachment should be emitted for new node");
+  ok(node2.hasAttribute("expanded"), "New node expanded after click");
+
+  ok(!node.classList.contains("theme-selected"),
+     "Old node should not have selected class after the click on new node");
+
+  // clicking again should just collapse
+  // this will not emit "select" event
+  event = defer();
+  node2.addEventListener("click", () => {
+    executeSoon(() => event.resolve(null));
+  }, { once: true });
+  click(node2);
+  yield event.promise;
+  ok(!node2.hasAttribute("expanded"), "New node collapsed after click again");
+}