LayoutTests/fast/dom/Document/CaretRangeFromPoint/caretRangeFromPoint-in-zoom-and-scroll.html

<div id="first" style="width: 4000px; height: 1000px">A long text to test document caretRangeFromPoint. Test scroll, zoom, zoomAndScroll .................................... The End </div>
<ul id="console"></ul>

<script src="../../../../resources/js-test-pre.js"></script>
<script>
    function sendClick(x, y)
    {
        if (window.eventSender) {
            eventSender.mouseMoveTo(x, y);
            eventSender.mouseDown();
            eventSender.mouseUp();
        }
    }
    
    // 29 is the character offset in the div text "A long text to test document caretRangeFromPoint".
    var expectedOffset = 29;
    var succeed = true;
    
    function checkNodeAndOffsetFromCaretRangeFromPoint(message, event)
    {
        var range = document.caretRangeFromPoint(event.clientX, event.clientY);
        var offset = 0;
        if (range)
          offset = range.startOffset;
        else {
          alert("range is null");
          return;
        }

        var node = document.getElementById("first").firstChild;
        if (range.startContainer != node) {
            testFailed(message + " node should be div's child text node");
            succeed = false;
        }
        if (offset != expectedOffset) {
            testFailed(message + " offset actual: " + offset + "; expected: " + expectedOffset);
            succeed = false;
        }
    }
    
    function checkBase(event)
    {
        checkNodeAndOffsetFromCaretRangeFromPoint("check base", event);
    }
    
    function checkScroll(event)
    {
        checkNodeAndOffsetFromCaretRangeFromPoint("check scroll", event);
    }
    
    function checkZoom(event)
    {
        checkNodeAndOffsetFromCaretRangeFromPoint("check zoom", event);
    }
    
    function checkZoomScroll(event)
    {
        checkNodeAndOffsetFromCaretRangeFromPoint("check zoom and scroll", event);
    }
    
    function scrollPage(x, y)
    {
        window.scrollTo(x, y);
    }
    
    onload = function()
    {
        if (window.testRunner)
            testRunner.dumpAsText();
    
        var range = document.createRange();
        var node = document.getElementById("first");
        // Set range in the middle of word "document".
        range.setStart(node.firstChild, expectedOffset);
        range.setEnd(node.firstChild, expectedOffset + 1);

        // Base test.
        window.addEventListener("click", checkBase, false);
        rects = range.getClientRects();
        var x = Math.round(rects[0].left);
        var y = Math.round(rects[0].top + rects[0].width / 2);
        sendClick(x, y);
        window.removeEventListener("click", checkBase, false);
    
        // Test scroll.
        window.addEventListener("click", checkScroll, false);
        scrollPage(x / 2, 0);
        sendClick(x / 2, y);
        scrollPage(0, 0);
        window.removeEventListener("click", checkScroll, false);
    
        // Test zoom.
        window.addEventListener("click", checkZoom, false);
        node.style.zoom = 2.0;
        rects = range.getClientRects();
        var x = Math.round(rects[0].left);
        var y = Math.round(rects[0].top + rects[0].width / 2);
        sendClick(x * 2, y);
        window.removeEventListener("click", checkZoom, false);
    
        // Test scroll and Zoom.
        window.addEventListener("click", checkZoomScroll, false);
        scrollPage(x, 0);
        sendClick(x, y);
        scrollPage(0, 0);
        node.style.zoom = 1.0;
        window.removeEventListener("click", checkZoomScroll, false);
    
        if (succeed == true)
            testPassed("Test completed successfully");
    }
</script>