michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/Timer.jsm");
michael@0: 
michael@0: const Ci = Components.interfaces;
michael@0: 
michael@0: let tab;
michael@0: let browser;
michael@0: 
michael@0: const scrollHtml =
michael@0:   "<textarea id=\"textarea1\" row=2>Firefox\n\nFirefox\n\n\n\n\n\n\n\n\n\n" +
michael@0:   "</textarea><a href=\"about:blank\">blank</a>";
michael@0: 
michael@0: const scrollTest =
michael@0:   "var textarea = content.document.getElementById(\"textarea1\");" +
michael@0:   "textarea.scrollTop = textarea.scrollHeight;" +
michael@0:   "sendAsyncMessage(\"ScrollDone\", { });"
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   tab = gBrowser.addTab("data:text/html;base64," + 
michael@0:                         btoa(scrollHtml));
michael@0:   browser = gBrowser.getBrowserForTab(tab);
michael@0:   gBrowser.selectedTab = tab;
michael@0: 
michael@0:   browser.addEventListener("load", find, true);
michael@0: }
michael@0: 
michael@0: function find()
michael@0: {
michael@0:   browser.removeEventListener("load", find, true);
michael@0:   let listener = {
michael@0:     onFindResult: function(aData) {
michael@0:       browser.finder.removeResultListener(listener);
michael@0: 
michael@0:       ok(aData.result == Ci.nsITypeAheadFind.FIND_FOUND, "should find string");
michael@0: 
michael@0:       browser.messageManager.addMessageListener("ScrollDone",
michael@0:                                                 function f(aMsg) {
michael@0:         browser.messageManager.removeMessageListener("ScrollDone", f);
michael@0:         browser.loadURI("about:blank");
michael@0:         browser.addEventListener("load", findAgain, true);
michael@0:       });
michael@0: 
michael@0:       // scroll textarea to bottom
michael@0:       browser.messageManager.loadFrameScript("data:text/javascript;base64," +
michael@0:                                              btoa(scrollTest), false);
michael@0: 
michael@0:     },
michael@0:   };
michael@0:   browser.finder.addResultListener(listener);
michael@0:   gFindBar.onFindCommand();
michael@0:   EventUtils.sendString("F");
michael@0: }
michael@0: 
michael@0: function findAgain()
michael@0: {
michael@0:   browser.removeEventListener("load", findAgain, true);
michael@0: 
michael@0:   ok(browser.currentURI.spec == "about:blank", "cannot navigate to about:blank");
michael@0:   let listener = {
michael@0:     onFindResult: function(aData) {
michael@0:       browser.finder.removeResultListener(listener);
michael@0:       cleanup();
michael@0:     },
michael@0:   };
michael@0: 
michael@0:   browser.finder.addResultListener(listener);
michael@0:   // find again needs delay for crash test
michael@0:   setTimeout(function() {
michael@0:     // ignore exception if occured
michael@0:     try {
michael@0:       gFindBar.onFindAgainCommand(false);
michael@0:     } catch (e) {
michael@0:     }
michael@0:     cleanup();
michael@0:   }, 0);
michael@0: }
michael@0: 
michael@0: function cleanup()
michael@0: {
michael@0:   gBrowser.removeTab(tab);
michael@0:   finish();
michael@0: }