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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+<!DOCTYPE html>
+<html>
+<head>
+ <title>Test: nsIAccessibleText getText* functions at caret offset</title>
+
+ <link rel="stylesheet" type="text/css"
+ href="chrome://mochikit/content/tests/SimpleTest/test.css" />
+
+ <script type="application/javascript"
+ src="chrome://mochikit/content/MochiKit/packed.js"></script>
+ <script type="application/javascript"
+ src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="application/javascript"
+ src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+
+ <script type="application/javascript"
+ src="../common.js"></script>
+ <script type="application/javascript"
+ src="../role.js"></script>
+ <script type="application/javascript"
+ src="../states.js"></script>
+ <script type="application/javascript"
+ src="../events.js"></script>
+ <script type="application/javascript"
+ src="../text.js"></script>
+
+ <script type="application/javascript">
+ //gA11yEventDumpToConsole = true; // debugging
+
+ function traverseTextByLines(aQueue, aID, aLines)
+ {
+ var wholeText = "";
+ for (var i = 0; i < aLines.length ; i++)
+ wholeText += aLines[i][0] + aLines[i][1];
+
+ var baseInvokerFunc = synthClick;
+ var charIter = new charIterator(wholeText, aLines);
+ //charIter.debugOffset = 10; // enable to run tests at given offset only
+
+ while (charIter.next()) {
+ aQueue.push(new tmpl_moveTo(aID, baseInvokerFunc, wholeText, charIter));
+ baseInvokerFunc = synthRightKey;
+ }
+ }
+
+ /**
+ * Used to get test list for each traversed character.
+ */
+ function charIterator(aWholeText, aLines)
+ {
+ this.next = function charIterator_next()
+ {
+ // Don't increment offset if we are at end of the wrapped line
+ // (offset is shared between end of this line and start of next line).
+ if (this.mAtWrappedLineEnd) {
+ this.mAtWrappedLineEnd = false;
+ this.mLine = this.mLine.nextLine;
+ return true;
+ }
+
+ this.mOffset++;
+ if (this.mOffset > aWholeText.length)
+ return false;
+
+ var nextLine = this.mLine.nextLine;
+ if (!nextLine.isFakeLine() && this.mOffset == nextLine.start) {
+ if (nextLine.start == this.mLine.end)
+ this.mAtWrappedLineEnd = true;
+ else
+ this.mLine = nextLine;
+ }
+
+ return true;
+ }
+
+ Object.defineProperty(this, "offset", { get: function()
+ { return this.mOffset; }
+ });
+
+ Object.defineProperty(this, "offsetDescr", { get: function()
+ {
+ return this.mOffset + " offset (" + this.mLine.number + " line, " +
+ (this.mOffset - this.mLine.start) + " offset on the line)";
+ }
+ });
+
+ Object.defineProperty(this, "tests", { get: function()
+ {
+ // Line boundary tests.
+ var cLine = this.mLine;
+ var pLine = cLine.prevLine;
+ var ppLine = pLine.prevLine;
+ var nLine = cLine.nextLine;
+ var nnLine = nLine.nextLine;
+
+ var lineTests = [
+ [ testTextBeforeOffset, BOUNDARY_LINE_START, pLine.start, cLine.start],
+ [ testTextBeforeOffset, BOUNDARY_LINE_END, ppLine.end, pLine.end],
+ [ testTextAtOffset, BOUNDARY_LINE_START, cLine.start, nLine.start],
+ [ testTextAtOffset, BOUNDARY_LINE_END, pLine.end, cLine.end],
+ [ testTextAfterOffset, BOUNDARY_LINE_START, nLine.start, nnLine.start],
+ [ testTextAfterOffset, BOUNDARY_LINE_END, cLine.end, nLine.end]
+ ];
+
+ // Word boundary tests.
+ var cWord = this.mLine.firstWord;
+ var nWord = cWord.nextWord, pWord = cWord.prevWord;
+
+ // The current word is a farthest word starting at or after the offset.
+ if (this.mOffset >= nWord.start) {
+ while (this.mOffset >= nWord.start && !this.mLine.isLastWord(cWord)) {
+ cWord = nWord;
+ nWord = nWord.nextWord;
+ }
+ pWord = cWord.prevWord;
+
+ } else if (this.mOffset < cWord.start) {
+ while (this.mOffset < cWord.start) {
+ cWord = pWord;
+ pWord = pWord.prevWord;
+ }
+ nWord = cWord.nextWord;
+ }
+
+ var nnWord = nWord.nextWord, ppWord = pWord.prevWord;
+
+ var isAfterWordEnd =
+ this.mOffset > cWord.end || cWord.line != this.mLine;
+ var isAtOrAfterWordEnd = (this.mOffset >= cWord.end);
+ var useNextWordForAtWordEnd =
+ isAtOrAfterWordEnd && this.mOffset != aWholeText.length;
+
+ var wordTests = [
+ [ testTextBeforeOffset, BOUNDARY_WORD_START,
+ pWord.start, cWord.start ],
+ [ testTextBeforeOffset, BOUNDARY_WORD_END,
+ (isAfterWordEnd ? pWord : ppWord).end,
+ (isAfterWordEnd ? cWord : pWord).end ],
+ [ testTextAtOffset, BOUNDARY_WORD_START,
+ cWord.start, nWord.start ],
+ [ testTextAtOffset, BOUNDARY_WORD_END,
+ (useNextWordForAtWordEnd ? cWord : pWord).end,
+ (useNextWordForAtWordEnd ? nWord : cWord).end ],
+ [ testTextAfterOffset, BOUNDARY_WORD_START,
+ nWord.start, nnWord.start ],
+ [ testTextAfterOffset, BOUNDARY_WORD_END,
+ (isAfterWordEnd ? nWord : cWord).end,
+ (isAfterWordEnd ? nnWord : nWord).end ]
+ ];
+
+ // Character boundary tests.
+ var prevOffset = this.offset > 1 ? this.offset - 1 : 0;
+ var nextOffset = this.offset >= aWholeText.length ?
+ this.offset : this.offset + 1;
+ var nextAfterNextOffset = nextOffset >= aWholeText.length ?
+ nextOffset : nextOffset + 1;
+
+ var charTests = [
+ [ testTextBeforeOffset, BOUNDARY_CHAR,
+ prevOffset, this.offset ],
+ [ testTextAtOffset, BOUNDARY_CHAR,
+ this.offset,
+ this.mAtWrappedLineEnd ? this.offset : nextOffset ],
+ [ testTextAfterOffset, BOUNDARY_CHAR,
+ this.mAtWrappedLineEnd ? this.offset : nextOffset,
+ this.mAtWrappedLineEnd ? nextOffset : nextAfterNextOffset ]
+ ];
+
+ return lineTests.concat(wordTests.concat(charTests));
+ }
+ });
+
+ Object.defineProperty(this, "failures", { get: function()
+ {
+ if (this.mOffset == this.mLine.start)
+ return this.mLine.lineStartFailures;
+ if (this.mOffset == this.mLine.end)
+ return this.mLine.lineEndFailures;
+ return [];
+ }
+ });
+
+ this.mOffset = -1;
+ this.mLine = new line(aWholeText, aLines, 0);
+ this.mAtWrappedLineEnd = false;
+ this.mWord = this.mLine.firstWord;
+ }
+
+ /**
+ * A line object. Allows to navigate by lines and by words.
+ */
+ function line(aWholeText, aLines, aIndex)
+ {
+ Object.defineProperty(this, "prevLine", { get: function()
+ {
+ return new line(aWholeText, aLines, aIndex - 1);
+ }
+ });
+ Object.defineProperty(this, "nextLine", { get: function()
+ {
+ return new line(aWholeText, aLines, aIndex + 1);
+ }
+ });
+
+ Object.defineProperty(this, "start", { get: function()
+ {
+ if (aIndex < 0)
+ return 0;
+
+ if (aIndex >= aLines.length)
+ return aWholeText.length;
+
+ return aLines[aIndex][2];
+ }
+ });
+ Object.defineProperty(this, "end", { get: function()
+ {
+ if (aIndex < 0)
+ return 0;
+
+ if (aIndex >= aLines.length)
+ return aWholeText.length;
+
+ return aLines[aIndex][3];
+ }
+ });
+
+ Object.defineProperty(this, "number", { get: function()
+ { return aIndex; }
+ });
+ Object.defineProperty(this, "wholeText", { get: function()
+ { return aWholeText; }
+ });
+ this.isFakeLine = function line_isFakeLine()
+ {
+ return aIndex < 0 || aIndex >= aLines.length;
+ }
+
+ Object.defineProperty(this, "lastWord", { get: function()
+ {
+ if (aIndex < 0)
+ return new word(this, [], -1);
+ if (aIndex >= aLines.length)
+ return new word(this, [], 0);
+
+ var words = aLines[aIndex][4].words;
+ return new word(this, words, words.length - 2);
+ }
+ });
+ Object.defineProperty(this, "firstWord", { get: function()
+ {
+ if (aIndex < 0)
+ return new word(this, [], -1);
+ if (aIndex >= aLines.length)
+ return new word(this, [], 0);
+
+ var words = aLines[aIndex][4].words;
+ return new word(this, words, 0);
+ }
+ });
+
+ this.isLastWord = function line_isLastWord(aWord)
+ {
+ var lastWord = this.lastWord;
+ return lastWord.start == aWord.start && lastWord.end == aWord.end;
+ }
+
+ Object.defineProperty(this, "lineStartFailures", { get: function()
+ {
+ if (aIndex < 0 || aIndex >= aLines.length)
+ return [];
+
+ return aLines[aIndex][4].lsf || [];
+ }
+ });
+ Object.defineProperty(this, "lineEndFailures", { get: function()
+ {
+ if (aIndex < 0 || aIndex >= aLines.length)
+ return [];
+
+ return aLines[aIndex][4].lef || [];
+ }
+ });
+ }
+
+ /**
+ * A word object. Allows to navigate by words.
+ */
+ function word(aLine, aWords, aIndex)
+ {
+ Object.defineProperty(this, "prevWord", { get: function()
+ {
+ if (aIndex >= 2)
+ return new word(aLine, aWords, aIndex - 2);
+
+ var prevLineLastWord = aLine.prevLine.lastWord;
+ if (this.start == prevLineLastWord.start && !this.isFakeStartWord())
+ return prevLineLastWord.prevWord;
+ return prevLineLastWord;
+ }
+ });
+ Object.defineProperty(this, "nextWord", { get: function()
+ {
+ if (aIndex + 2 < aWords.length)
+ return new word(aLine, aWords, aIndex + 2);
+
+ var nextLineFirstWord = aLine.nextLine.firstWord;
+ if (this.end == nextLineFirstWord.end && !this.isFakeEndWord())
+ return nextLineFirstWord.nextWord;
+ return nextLineFirstWord;
+ }
+ });
+
+ Object.defineProperty(this, "line", { get: function() { return aLine; } });
+
+ Object.defineProperty(this, "start", { get: function()
+ {
+ if (this.isFakeStartWord())
+ return 0;
+
+ if (this.isFakeEndWord())
+ return aLine.end;
+ return aWords[aIndex];
+ }
+ });
+ Object.defineProperty(this, "end", { get: function()
+ {
+ if (this.isFakeStartWord())
+ return 0;
+
+ return this.isFakeEndWord() ? aLine.end : aWords[aIndex + 1];
+ }
+ });
+
+ this.toString = function word_toString()
+ {
+ var start = this.start, end = this.end;
+ return "'" + aLine.wholeText.substring(start, end) +
+ "' at [" + start + ", " + end + "]";
+ }
+
+ this.isFakeStartWord = function() { return aIndex < 0; }
+ this.isFakeEndWord = function() { return aIndex >= aWords.length; }
+ }
+
+ /**
+ * A template invoker to move through the text.
+ */
+ function tmpl_moveTo(aID, aInvokerFunc, aWholeText, aCharIter)
+ {
+ this.offset = aCharIter.offset;
+
+ var checker = new caretMoveChecker(this.offset, aID);
+ this.__proto__ = new (aInvokerFunc)(aID, checker);
+
+ this.finalCheck = function genericMoveTo_finalCheck()
+ {
+ if (this.noTests())
+ return;
+
+ for (var i = 0; i < this.tests.length; i++) {
+ var func = this.tests[i][0];
+ var boundary = this.tests[i][1];
+ var startOffset = this.tests[i][2];
+ var endOffset = this.tests[i][3];
+ var text = aWholeText.substring(startOffset, endOffset);
+
+ var isOk1 = kOk, isOk2 = kOk, isOk3 = kOk;
+ for (var fIdx = 0; fIdx < this.failures.length; fIdx++) {
+ var failure = this.failures[fIdx];
+ if (func.name.indexOf(failure[0]) != -1 && boundary == failure[1]) {
+ isOk1 = failure[2];
+ isOk2 = failure[3];
+ isOk3 = failure[4];
+ }
+ }
+
+ func.call(null, kCaretOffset, boundary, text, startOffset, endOffset,
+ aID, isOk1, isOk2, isOk3);
+ }
+ }
+
+ this.getID = function genericMoveTo_getID()
+ {
+ return "move to " + this.offsetDescr;
+ }
+
+ this.noTests = function tmpl_moveTo_noTests()
+ {
+ return ("debugOffset" in aCharIter) &&
+ (aCharIter.debugOffset != this.offset);
+ }
+
+ this.offsetDescr = aCharIter.offsetDescr;
+ this.tests = this.noTests() ? null : aCharIter.tests;
+ this.failures = aCharIter.failures;
+ }
+
+ var gQueue = null;
+ function doTest()
+ {
+ gQueue = new eventQueue();
+
+ // __a__w__o__r__d__\n
+ // 0 1 2 3 4 5
+ // __t__w__o__ (soft line break)
+ // 6 7 8 9
+ // __w__o__r__d__s
+ // 10 11 12 13 14 15
+
+ traverseTextByLines(gQueue, "textarea",
+ [ [ "aword", "\n", 0, 5, { words: [ 0, 5 ] } ],
+ [ "two ", "", 6, 10, { words: [ 6, 9 ] } ],
+ [ "words", "", 10, 15, { words: [ 10, 15 ] } ]
+ ] );
+
+ var line4 = [ // "riend "
+ [ "TextBeforeOffset", BOUNDARY_WORD_END, kTodo, kTodo, kTodo ],
+ [ "TextAfterOffset", BOUNDARY_WORD_END, kTodo, kTodo, kTodo ]
+ ];
+ traverseTextByLines(gQueue, "ta_wrapped",
+ [ [ "hi ", "", 0, 3, { words: [ 0, 2 ] } ],
+ [ "hello ", "", 3, 9, { words: [ 3, 8 ] } ],
+ [ "my ", "", 9, 12, { words: [ 9, 11 ] } ],
+ [ "longf", "", 12, 17, { words: [ 12, 17 ] } ],
+ [ "riend ", "", 17, 23, { words: [ 17, 22 ], lsf: line4 } ],
+ [ "t sq ", "", 23, 28, { words: [ 23, 24, 25, 27 ] } ],
+ [ "t", "", 28, 29, { words: [ 28, 29 ] } ]
+ ] );
+
+ gQueue.invoke(); // will call SimpleTest.finish();
+ }
+
+ SimpleTest.waitForExplicitFinish();
+ addA11yLoadEvent(doTest);
+ </script>
+</head>
+<body>
+
+ <a target="_blank"
+ title="nsIAccessibleText getText related functions tests at caret offset"
+ href="https://bugzilla.mozilla.org/show_bug.cgi?id=852021">
+ Bug 852021
+ </a>
+ <p id="display"></p>
+ <div id="content" style="display: none"></div>
+ <pre id="test">
+
+ <textarea id="textarea" cols="5">aword
+two words</textarea>
+
+ <textarea id="ta_wrapped" cols="5">hi hello my longfriend t sq t</textarea>
+ </pre>
+</body>
+</html>
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