Bug 1283705 - wait for popuphidden to fix intermittent test browser_tableWidget_mouse_interaction;r=miker

MozReview-Commit-ID: GFyH7f1bXpR

--HG--
extra : rebase_source : f5712a5b12a298b0d026d1b4a6ce42087c1d43bb

devtools/client/shared/test/browser_tableWidget_mouse_interaction.js

@@ -202,6 +202,7 @@ var testMouseInteraction = Task.async(function* () {
      "Which is the unique column");
   // popup should be open now
   // clicking on second column label
+  let onPopupHidden = once(table.menupopup, "popuphidden");
   event = table.once(TableWidget.EVENTS.HEADER_CONTEXT_MENU);
   node = table.menupopup.querySelector("[data-id='col2']");
   info("selecting to hide the second column");
@@ -209,6 +210,7 @@ var testMouseInteraction = Task.async(function* () {
      "Column is not hidden before hiding it");
   click(node);
   id = yield event;
+  yield onPopupHidden;
   is(id, "col2", "Correct column was triggered to be hidden");
   is(table.tbody.children[2].getAttribute("hidden"), "true",
      "Column is hidden after hiding it");
@@ -225,6 +227,7 @@ var testMouseInteraction = Task.async(function* () {
      "Only 1 menuitem is disabled");
   // popup should be open now
   // clicking on second column label
+  onPopupHidden = once(table.menupopup, "popuphidden");
   event = table.once(TableWidget.EVENTS.HEADER_CONTEXT_MENU);
   node = table.menupopup.querySelector("[data-id='col3']");
   info("selecting to hide the second column");
@@ -232,6 +235,7 @@ var testMouseInteraction = Task.async(function* () {
      "Column is not hidden before hiding it");
   click(node);
   id = yield event;
+  yield onPopupHidden;
   is(id, "col3", "Correct column was triggered to be hidden");
   is(table.tbody.children[4].getAttribute("hidden"), "true",
      "Column is hidden after hiding it");
@@ -256,6 +260,7 @@ var testMouseInteraction = Task.async(function* () {
   // showing back 2nd column
   // popup should be open now
   // clicking on second column label
+  onPopupHidden = once(table.menupopup, "popuphidden");
   event = table.once(TableWidget.EVENTS.HEADER_CONTEXT_MENU);
   node = table.menupopup.querySelector("[data-id='col2']");
   info("selecting to hide the second column");
@@ -263,6 +268,7 @@ var testMouseInteraction = Task.async(function* () {
      "Column is hidden before unhiding it");
   click(node);
   id = yield event;
+  yield onPopupHidden;
   is(id, "col2", "Correct column was triggered to be hidden");
   ok(!table.tbody.children[2].hasAttribute("hidden"),
      "Column is not hidden after unhiding it");
@@ -277,6 +283,7 @@ var testMouseInteraction = Task.async(function* () {
 
   // popup should be open now
   // clicking on second column label
+  onPopupHidden = once(table.menupopup, "popuphidden");
   event = table.once(TableWidget.EVENTS.HEADER_CONTEXT_MENU);
   node = table.menupopup.querySelector("[data-id='col3']");
   info("selecting to hide the second column");
@@ -284,6 +291,7 @@ var testMouseInteraction = Task.async(function* () {
      "Column is hidden before unhiding it");
   click(node);
   id = yield event;
+  yield onPopupHidden;
   is(id, "col3", "Correct column was triggered to be hidden");
   ok(!table.tbody.children[4].hasAttribute("hidden"),
      "Column is not hidden after unhiding it");