Import csswg-test/css-writing-modes-3/

LayoutTests/imported/csswg-test/css-writing-modes-3/support/text-orientation/text-orientation.js

Index: LayoutTests/imported/csswg-test/css-writing-modes-3/support/text-orientation/text-orientation.js
diff --git a/LayoutTests/imported/csswg-test/css-writing-modes-3/support/text-orientation/text-orientation.js b/LayoutTests/imported/csswg-test/css-writing-modes-3/support/text-orientation/text-orientation.js
new file mode 100644
index 0000000000000000000000000000000000000000..806a881e97fadaa0fddd2b944cf5519ce0f825db
--- /dev/null
+++ b/LayoutTests/imported/csswg-test/css-writing-modes-3/support/text-orientation/text-orientation.js
@@ -0,0 +1,215 @@
+(function () {
+    function OrientationTester(container, orientation) {
+        this.container = container;
+        this.setOrientation(orientation);
+    }
+    extend(OrientationTester.prototype, {
+        setOrientation: function (orientation) {
+            this.orientation = orientation;
+        },
+        measure: function (results) {
+            this.results = results;
+            this._measureNode(this.container);
+        },
+        _measureNode: function (node) {
+            switch (node.nodeType) {
+            case Node.ELEMENT_NODE:
+                var nodes = node.childNodes;
+                for (var i = 0; i < nodes.length; i++)
+                    this._measureNode(nodes[i]);
+                return;
+            case Node.TEXT_NODE:
+                break;
+            default:
+                return;
+            }
+
+            if (this.orientation == "R") {
+                var advanceExpected = 8;
+                var advanceFailed = 4;
+            } else {
+                advanceExpected = 4;
+                advanceFailed = 8;
+            }
+
+            var range = document.createRange();
+            var text = node.textContent;
+            for (var ich = 0; ich < text.length; ich++) {
+                var code = text.charCodeAt(ich);
+                if (code == 10 || code == 13)
+                    continue;
+                range.setStart(node, ich);
+                if (code >= 0xD800 && code <= 0xDBFF) {
+                    var next = text.charCodeAt(ich+1);
+                    if (next >= 0xDC00 && next <= 0xDFFF) {
+                        ich++;
+                        code = ((code & 0x3FF) << 10) + (next & 0x3FF) + 0x10000;
+                    }
+                }
+                range.setEnd(node, ich + 1);
+                rect = range.getBoundingClientRect();
+                if (rect.width == 16) {
+                    if (rect.height == advanceExpected) {
+                        this.results.passCount++;
+                        continue;
+                    }
+                    //log("U+" + stringFromUnicode(code) + " " + rect.width + "x" + rect.height);
+                    if (rect.height == advanceFailed) {
+                        this.results.failed(this, code);
+                        continue;
+                    }
+                }
+                this.results.inconclusive(this, code, rect);
+            }
+        }});
+
+    function Results(name) {
+        var block = document.createElement("details");
+        this.summary = appendChildElement(block, "summary");
+        this.summary.textContent = name;
+        var typeList = appendChildElement(block, "ul");
+        this.failList = appendChildElement(appendChildElement(typeList, "li", "Failures"), "ol");
+        this.inconclusiveList = appendChildElement(appendChildElement(typeList, "li", "Inconclusives"), "ol");
+        details.appendChild(block);
+        this.passCount = 0;
+        this.failCount = 0;
+        this.inconclusiveCount = 0;
+    }
+    extend(Results.prototype, {
+        failed: function (test, code) {
+            this.failCount++;
+            this.append(this.failList, test, code);
+        },
+        inconclusive: function (test, code, rect) {
+            this.inconclusiveCount++;
+            this.append(this.inconclusiveList, test, code, " but inconclusive (rendered as " + rect.width + "x" + rect.height + ")");
+        },
+        append: function (list, test, code, message) {
+            var text = stringFromUnicode(code) + " should be " + test.orientation;
+            if (message)
+                text += message;
+            appendChildElement(list, "li", text);
+        },
+        done: function (test) {
+            this.summary.textContent += " (" + this.passCount + " passes, " +
+                this.failCount + " fails, " +
+                this.inconclusiveCount + " inconclusives)";
+            assert_equals(this.failCount, 0, "Fail count");
+            assert_greater_than(this.passCount, 0, "Pass count");
+            test.done();
+        }});
+
+    function Runner() {
+        var nodes = document.querySelectorAll("div[data-vo]");
+        this.testers = [];
+        for (var i = 0; i < nodes.length; i++) {
+            var node = nodes[i];
+            var vo = node.dataset.vo;
+            var tester = new OrientationTester(node, vo);
+            tester.test = async_test("Default orientation for vo=" + vo);
+            this.testers.push(tester);
+        }
+        this.testU = async_test("Orientation=Upright");
+        this.testR = async_test("Orientation=Rotated");
+    }
+    extend(Runner.prototype, {
+        run: function () {
+            log("Started");
+            var start = new Date;
+
+            for (var i = 0; i < this.testers.length; i++) {
+                var tester = this.testers[i];
+                var test = tester.test;
+                test.step(function () {
+                    var results = new Results(test.name);
+                    tester.measure(results);
+                    results.done(test);
+                });
+            }
+            this.runOrientation(this.testU, "U");
+            this.runOrientation(this.testR, "R");
+
+            log("Elapsed " + (new Date() - start));
+            done();
+        },
+        runOrientation: function (test, orientation) {
+            container.classList.add(orientation);
+            var results = new Results(test.name);
+            var me = this;
+            test.step(function () {
+                for (var i = 0; i < me.testers.length; i++) {
+                    var tester = me.testers[i];
+                    tester.setOrientation(orientation);
+                    tester.measure(results);
+                }
+                results.done(test);
+            })
+            container.classList.remove(orientation);
+        }});
+
+    setup({explicit_done:true, explicit_timeout:true});
+    var blocks = arrayFromRangesByValue(rangesByBlock);
+    var runner = new Runner();
+    window.onload = function () {
+        if (window.location.search == "?wait") {
+            log("Sleeping 5 secs for debug purpose");
+            return setTimeout(run, 5000);
+        }
+        run();
+    }
+
+    function run() {
+        onFontReady("16px orientation", function () { runner.run(); });
+    }
+
+    function onFontReady(font, func) {
+        log("Waiting test fonts to load");
+        if (document.fonts) {
+            if ('load' in document.fonts)
+                return document.fonts.load(font).then(func);
+            if ('ready' in document.fonts)
+                return document.fonts.ready.then(func);
+        }
+        document.offsetTop; // last resort to load @font-face
+        func();
+    }
+
+    function arrayFromRangesByValue(dict) {
+        var array = [];
+        for (var value in dict) {
+            var ranges = dict[value];
+            for (var i = 0; i < ranges.length; i += 2) {
+                var to = ranges[i+1];
+                for (var code = ranges[i]; code <= to; code++)
+                    array[code] = value;
+            }
+        }
+        return array;
+    };
+
+    function stringFromUnicode(code) {
+        var hex = code.toString(16).toUpperCase();
+        if (hex.length < 4) {
+            hex = "0000" + hex;
+            hex = hex.substr(hex.length - 4);
+        }
+        return blocks[code] + ": " + hex + ' "' + String.fromCharCode(code) + '"';
+    }
+
+    function appendChildElement(parent, tag, text) {
+        var node = document.createElement(tag);
+        if (text)
+            node.textContent = text;
+        parent.appendChild(node);
+        return node;
+    }
+
+    function extend(target, dict) {
+        for (var key in dict)
+            target[key] = dict[key];
+    }
+
+    function log(text) {
+        console.log(text);
+    }
+})();