<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=904810 --> <head> <title>Test for Bug 904810</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <script src="/tests/SimpleTest/EventUtils.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=904810">Mozilla Bug 904810</a> <p id="display"> <textarea dir="ltr" id="textarea904810"> first line second line third line </textarea></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 904810 **/ SimpleTest.waitForExplicitFinish(); SimpleTest.waitForFocus(function test() { function shiftLeft(i) { for ( ; i > 0; --i) synthesizeKey("KEY_ArrowLeft", {shiftKey:true}); } function shiftRight(i) { for ( ; i > 0; --i) synthesizeKey("KEY_ArrowRight", {shiftKey:true}); } const isWindows = /WINNT/.test(SpecialPowers.OS); var textarea = document.getElementById('textarea904810'); textarea.focus(); // Testing KEY_ArrowDown with forward selection textarea.selectionStart = 1; textarea.selectionEnd = 1; shiftRight(7); synthesizeKey("KEY_ArrowDown"); is(textarea.selectionStart, 19, "caret moved to next line below selection end"); is(textarea.selectionEnd, 19, "caret moved to next line below selection end"); // Testing KEY_ArrowDown with backward selection textarea.selectionStart = 8; textarea.selectionEnd = 8; shiftLeft(7); synthesizeKey("KEY_ArrowDown"); is(textarea.selectionStart, 12, "caret moved to next line below selection start"); is(textarea.selectionEnd, 12, "caret moved to next line below selection start"); // Testing KEY_ArrowUp with forward selection textarea.selectionStart = 12; textarea.selectionEnd = 12; shiftRight(7); synthesizeKey("KEY_ArrowUp"); var result = textarea.selectionEnd is(textarea.selectionStart, 8, "caret moved to previous line above selection end"); is(textarea.selectionEnd, 8, "caret moved to previous line above selection end"); // Testing KEY_ArrowUp with backward selection textarea.selectionStart = 19; textarea.selectionEnd = 19; shiftLeft(7); synthesizeKey("KEY_ArrowUp"); var result = textarea.selectionEnd is(textarea.selectionStart, 1, "caret moved to previous line above selection start"); is(textarea.selectionEnd, 1, "caret moved to previous line above selection start"); SimpleTest.finish(); }); </script> </pre> </body> </html>