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-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2007 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<title>Closure Unit Tests - goog.dom.selection</title>
-<script src="../base.js"></script>
-<script>
- goog.require('goog.dom');
- goog.require('goog.dom.selection');
- goog.require('goog.testing.jsunit');
- goog.require('goog.userAgent');
-</script>
-</head>
-<body>
-
-<script>
-
- var input;
- var hiddenInput;
- var textarea;
- var hiddenTextarea;
-
- function setUp() {
- input = goog.dom.createDom('input', {type: 'text'});
- textarea = goog.dom.createDom('textarea');
- hiddenInput = goog.dom.createDom(
- 'input', {type: 'text', style: 'display: none'});
- hiddenTextarea = goog.dom.createDom(
- 'textarea', {style: 'display: none'});
-
- document.body.appendChild(input);
- document.body.appendChild(textarea);
- document.body.appendChild(hiddenInput);
- document.body.appendChild(hiddenTextarea);
- }
-
- function tearDown() {
- goog.dom.removeNode(input);
- goog.dom.removeNode(textarea);
- goog.dom.removeNode(hiddenInput);
- goog.dom.removeNode(hiddenTextarea);
- }
-
- /**
- * Tests getStart routine in both input and textarea.
- */
- function testGetStartInput() {
- getStartHelper(input, hiddenInput);
- }
-
- function testGetStartTextarea() {
- getStartHelper(textarea, hiddenTextarea);
- }
-
- function getStartHelper(field, hiddenField) {
- assertEquals(0, goog.dom.selection.getStart(field));
- assertEquals(0, goog.dom.selection.getStart(hiddenField));
-
- field.focus();
- assertEquals(0, goog.dom.selection.getStart(field));
- }
-
- /**
- * Tests the setText routine for both input and textarea
- * with a single line of text.
- */
- function testSetTextInput() {
- setTextHelper(input);
- }
-
- function testSetTextTextarea() {
- setTextHelper(textarea);
- }
-
- function setTextHelper(field) {
- // Test one line string only
- select(field);
- assertEquals('', goog.dom.selection.getText(field));
-
- goog.dom.selection.setText(field, 'Get Behind Me Satan');
- assertEquals('Get Behind Me Satan', goog.dom.selection.getText(field));
- }
-
- /**
- * Tests the setText routine for textarea with multiple lines of text.
- */
- function testSetTextMultipleLines() {
- select(textarea);
- assertEquals('', goog.dom.selection.getText(textarea));
- var message = goog.userAgent.IE ?
- 'Get Behind Me\r\nSatan' :
- 'Get Behind Me\nSatan';
- goog.dom.selection.setText(textarea, message);
- assertEquals(message, goog.dom.selection.getText(textarea));
-
- // Select the text upto the point just after the \r\n combination
- // or \n in GECKO.
- var endOfNewline = goog.userAgent.IE ? 15 : 14;
- var selectedMessage = message.substring(0, endOfNewline);
- goog.dom.selection.setStart(textarea, 0);
- goog.dom.selection.setEnd(textarea, endOfNewline);
- assertEquals(selectedMessage, goog.dom.selection.getText(textarea));
-
- selectedMessage = goog.userAgent.IE ? '\r\n' : '\n';
- goog.dom.selection.setStart(textarea, 13);
- goog.dom.selection.setEnd(textarea, endOfNewline);
- assertEquals(selectedMessage, goog.dom.selection.getText(textarea));
- }
-
- /**
- * Tests the setCursor routine for both input and textarea.
- */
- function testSetCursorInput() {
- setCursorHelper(input);
- }
-
- function testSetCursorTextarea() {
- setCursorHelper(textarea);
- }
-
- function setCursorHelper(field) {
- select(field);
- // try to set the cursor beyond the length of the content
- goog.dom.selection.setStart(field, 5);
- goog.dom.selection.setEnd(field, 15);
- assertEquals(0, goog.dom.selection.getStart(field));
- assertEquals(0, goog.dom.selection.getEnd(field));
-
- select(field);
- var message = 'Get Behind Me Satan';
- goog.dom.selection.setText(field, message);
- goog.dom.selection.setStart(field, 5);
- goog.dom.selection.setEnd(field, message.length);
- assertEquals(5, goog.dom.selection.getStart(field));
- assertEquals(message.length, goog.dom.selection.getEnd(field));
-
- // Set the end before the start, and see if getEnd returns the start
- // position itself.
- goog.dom.selection.setStart(field, 5);
- goog.dom.selection.setEnd(field, 3);
- assertEquals(3, goog.dom.selection.getEnd(field));
- }
-
- /**
- * Tests the getText and setText routines acting on selected text in
- * both input and textarea.
- */
- function testGetAndSetSelectedTextInput() {
- getAndSetSelectedTextHelper(input);
- }
-
- function testGetAndSetSelectedTextTextarea() {
- getAndSetSelectedTextHelper(textarea);
- }
-
- function getAndSetSelectedTextHelper(field) {
- select(field);
- goog.dom.selection.setText(field, 'Get Behind Me Satan');
-
- // select 'Behind'
- goog.dom.selection.setStart(field, 4);
- goog.dom.selection.setEnd(field, 10);
- assertEquals('Behind', goog.dom.selection.getText(field));
-
- goog.dom.selection.setText(field, 'In Front Of');
- goog.dom.selection.setStart(field, 0);
- goog.dom.selection.setEnd(field, 100);
- assertEquals('Get In Front Of Me Satan', goog.dom.selection.getText(field));
- }
-
- /**
- * Test setStart on hidden input and hidden textarea.
- */
- function testSetCursorOnHiddenInput() {
- setCursorOnHiddenInputHelper(hiddenInput);
- }
-
- function testSetCursorOnHiddenTextarea() {
- setCursorOnHiddenInputHelper(hiddenTextarea);
- }
-
- function setCursorOnHiddenInputHelper(hiddenField) {
- goog.dom.selection.setStart(hiddenField, 0);
- assertEquals(0, goog.dom.selection.getStart(hiddenField));
- }
-
- /**
- * Test setStart, setEnd, getStart and getEnd in textarea with text
- * containing line breaks.
- */
- function testSetAndGetCursorWithLineBreaks() {
- select(textarea);
- var newline = goog.userAgent.IE ? '\r\n' : '\n';
- var message = 'Hello' + newline + 'World';
- goog.dom.selection.setText(textarea, message);
-
- // Test setEnd and getEnd, by setting the cursor somewhere after the
- // \r\n combination.
- goog.dom.selection.setEnd(textarea, 9);
- assertEquals(9, goog.dom.selection.getEnd(textarea));
-
- // Test basic setStart and getStart
- goog.dom.selection.setStart(textarea, 10);
- assertEquals(10, goog.dom.selection.getStart(textarea));
-
- // Test setEnd and getEnd, by setting the cursor exactly after the
- // \r\n combination in IE or after \n in GECKO.
- var endOfNewline = goog.userAgent.IE ? 7 : 6;
- checkSetAndGetTextarea(endOfNewline, endOfNewline);
-
- // Select a \r\n combination in IE or \n in GECKO and see if
- // getStart and getEnd work correctly.
- clearField(textarea);
- message = 'Hello' + newline + newline + 'World';
- goog.dom.selection.setText(textarea, message);
- var startOfNewline = goog.userAgent.IE ? 7 : 6;
- endOfNewline = goog.userAgent.IE ? 9 : 7;
- checkSetAndGetTextarea(startOfNewline, endOfNewline);
-
- // Select 2 \r\n combinations in IE or 2 \ns in GECKO and see if getStart
- // and getEnd work correctly.
- checkSetAndGetTextarea(5, endOfNewline);
-
- // Position cursor b/w 2 \r\n combinations in IE or 2 \ns in GECKO and see
- // if getStart and getEnd work correctly.
- clearField(textarea);
- message = 'Hello' + newline + newline + newline + newline + 'World';
- goog.dom.selection.setText(textarea, message);
- var middleOfNewlines = goog.userAgent.IE ? 9 : 7;
- checkSetAndGetTextarea(middleOfNewlines, middleOfNewlines);
-
- // Position cursor at end of a textarea which ends with \r\n in IE or \n in
- // GECKO.
- clearField(textarea);
- message = 'Hello' + newline + newline;
- goog.dom.selection.setText(textarea, message);
- var endOfTextarea = message.length;
- checkSetAndGetTextarea(endOfTextarea, endOfTextarea);
-
- // Position cursor at the end of the 2 starting \r\ns in IE or \ns in GECKO
- // within a textarea.
- clearField(textarea);
- message = newline + newline + 'World';
- goog.dom.selection.setText(textarea, message);
- var endOfTwoNewlines = goog.userAgent.IE ? 4 : 2;
- checkSetAndGetTextarea(endOfTwoNewlines, endOfTwoNewlines);
-
- // Position cursor at the end of the first \r\n in IE or \n in
- // GECKO within a textarea.
- endOfOneNewline = goog.userAgent.IE ? 2 : 1;
- checkSetAndGetTextarea(endOfOneNewline, endOfOneNewline);
- }
-
- /**
- * Test to make sure there's no error when getting the range of an unselected
- * textarea. See bug 1274027.
- */
- function testGetStartOnUnfocusedTextarea() {
- input.value = 'White Blood Cells';
- input.focus();
- goog.dom.selection.setCursorPosition(input, 5);
-
- assertEquals('getStart on input should return where we put the cursor',
- 5, goog.dom.selection.getStart(input));
-
- assertEquals('getStart on unfocused textarea should succeed without error',
- 0, goog.dom.selection.getStart(textarea));
- }
-
- /**
- * Test to make sure there's no error setting cursor position within a
- * textarea after a newline. This is problematic on IE because of the
- * '\r\n' vs '\n' issue.
- */
- function testSetCursorPositionTextareaWithNewlines() {
- textarea.value = 'Hello\nWorld';
- textarea.focus();
-
- // Set the selection point between 'W' and 'o'. Position is computed this
- // way instead of being hard-coded because it's different in IE due to \r\n
- // vs \n.
- goog.dom.selection.setCursorPosition(textarea, textarea.value.length - 4);
-
- var linebreak = goog.userAgent.IE ? '\r\n' : '\n';
- var expectedLeftString = 'Hello' + linebreak + 'W';
-
- assertEquals('getStart on input should return after the newline',
- expectedLeftString.length, goog.dom.selection.getStart(textarea));
- assertEquals('getEnd on input should return after the newline',
- expectedLeftString.length, goog.dom.selection.getEnd(textarea));
-
- goog.dom.selection.setEnd(textarea, textarea.value.length);
- assertEquals('orld', goog.dom.selection.getText(textarea));
- }
-
- /**
- * Helper function to clear the textfield contents.
- */
- function clearField(field) {
- field.value = '';
- }
-
- /**
- * Helper function to set the start and end and assert the getter values.
- */
- function checkSetAndGetTextarea(start, end) {
- goog.dom.selection.setStart(textarea, start);
- goog.dom.selection.setEnd(textarea, end);
- assertEquals(start, goog.dom.selection.getStart(textarea));
- assertEquals(end, goog.dom.selection.getEnd(textarea));
- }
-
- /**
- * Helper function to focus and select a field. In IE8, selected
- * fields need focus.
- */
- function select(field) {
- field.focus();
- field.select();
- }
-</script>
-</body>
-</html>
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