LayoutTests/fast/events/selectstart-prevent-selectall.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body onselectstart="event.preventDefault();">
 <p>This test ensures selectstart event fires when selecting all and script can prevent the selection change.</p>
 <section id="test">
 <div onselectstart="handlerOnDivWasCalled = true;" contenteditable>hello</div>
 <input onselectstart="event.preventDefault();" type="text" value="world">
 </section>
 <pre><script>

 if (window.testRunner) {
     testRunner.dumpAsText();
     testRunner.dumpEditingCallbacks();
 }

 var handlerOnDivWasCalled = false;
 var div = document.getElementsByTagName('div')[0];
 div.focus();
 window.getSelection().setPosition(div.firstChild, 1);
 document.execCommand('SelectAll', false, null);
 var range = window.getSelection().getRangeAt(0);
 document.write('div: ');
 if (!handlerOnDivWasCalled)
     document.writeln('FAIL - handler on div was never called');
 else if (range.startOffset != 1 || range.endOffset != 1)
     document.writeln('FAIL - selection changed');
 else
     document.writeln('PASS');

 var input = document.getElementsByTagName('input')[0];
 input.focus();
 input.selectionStart = 1;
 input.selectionEnd = 1;
 document.execCommand('SelectAll', false, null);
 document.writeln('input: ' + (input.selectionStart == 1 || input.selectionEnd == 1 ? 'PASS' : 'FAIL'));

 document.getElementById('test').style.display = 'none';

 </script></pre>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body onselectstart="event.preventDefault();">
	<p>This test ensures selectstart event fires when selecting all and script can prevent the selection change.</p>
	<section id="test">
	<div onselectstart="handlerOnDivWasCalled = true;" contenteditable>hello</div>
	<input onselectstart="event.preventDefault();" type="text" value="world">
	</section>
	<pre><script>

	if (window.testRunner) {
	testRunner.dumpAsText();
	testRunner.dumpEditingCallbacks();
	}

	var handlerOnDivWasCalled = false;
	var div = document.getElementsByTagName('div')[0];
	div.focus();
	window.getSelection().setPosition(div.firstChild, 1);
	document.execCommand('SelectAll', false, null);
	var range = window.getSelection().getRangeAt(0);
	document.write('div: ');
	if (!handlerOnDivWasCalled)
	document.writeln('FAIL - handler on div was never called');
	else if (range.startOffset != 1 \|\| range.endOffset != 1)
	document.writeln('FAIL - selection changed');
	else
	document.writeln('PASS');

	var input = document.getElementsByTagName('input')[0];
	input.focus();
	input.selectionStart = 1;
	input.selectionEnd = 1;
	document.execCommand('SelectAll', false, null);
	document.writeln('input: ' + (input.selectionStart == 1 \|\| input.selectionEnd == 1 ? 'PASS' : 'FAIL'));

	document.getElementById('test').style.display = 'none';

	</script></pre>
	</body>
	</html>