The Tor Browser: accessible/tests/mochitest/layout.js@7e26c7da4463 (annotated)

accessible/tests/mochitest/layout.js@7e26c7da4463 (annotated)

accessible/tests/mochitest/layout.js

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 /**
  * Tests if the given child and grand child accessibles at the given point are
  * expected.
  *
  * @param aID            [in] accessible identifier
  * @param aX             [in] x coordinate of the point relative accessible
  * @param aY             [in] y coordinate of the point relative accessible
  * @param aChildID       [in] expected child accessible
  * @param aGrandChildID  [in] expected child accessible
  */
 function testChildAtPoint(aID, aX, aY, aChildID, aGrandChildID)
 {
   var child = getChildAtPoint(aID, aX, aY, false);
   var expectedChild = getAccessible(aChildID);
   var msg = "Wrong direct child accessible at the point (" + aX + ", " + aY +
     ") of " + prettyName(aID);
   isObject(child, expectedChild, msg);
   var grandChild = getChildAtPoint(aID, aX, aY, true);
   var expectedGrandChild = getAccessible(aGrandChildID);
   msg = "Wrong deepest child accessible at the point (" + aX + ", " + aY +
     ") of " + prettyName(aID);
   isObject(grandChild, expectedGrandChild, msg);
 }
 /**
  * Test if getChildAtPoint returns the given child and grand child accessibles
  * at coordinates of child accessible (direct and deep hit test).
  */
 function hitTest(aContainerID, aChildID, aGrandChildID)
 {
   var container = getAccessible(aContainerID);
   var child = getAccessible(aChildID);
   var grandChild = getAccessible(aGrandChildID);
   var [x, y] = getBoundsForDOMElm(child);
   var actualChild = container.getChildAtPoint(x + 1, y + 1);
   isObject(actualChild, child,
            "Wrong direct child of " + prettyName(aContainerID));
   var actualGrandChild = container.getDeepestChildAtPoint(x + 1, y + 1);
   isObject(actualGrandChild, grandChild,
            "Wrong deepest child of " + prettyName(aContainerID));
 }
 /**
  * Test if getOffsetAtPoint returns the given text offset at given coordinates.
  */
 function testOffsetAtPoint(aHyperTextID, aX, aY, aCoordType, aExpectedOffset)
 {
   var hyperText = getAccessible(aHyperTextID, [nsIAccessibleText]);
   var offset = hyperText.getOffsetAtPoint(aX, aY, aCoordType);
   is(offset, aExpectedOffset,
      "Wrong offset at given point (" + aX + ", " + aY + ") for " +
      prettyName(aHyperTextID));
 }
 /**
  * Zoom the given document.
  */
 function zoomDocument(aDocument, aZoom)
 {
   var docShell = aDocument.defaultView.
     QueryInterface(Components.interfaces.nsIInterfaceRequestor).
     getInterface(Components.interfaces.nsIWebNavigation).
     QueryInterface(Components.interfaces.nsIDocShell);
   var docViewer = docShell.contentViewer.
     QueryInterface(Components.interfaces.nsIMarkupDocumentViewer);
   docViewer.fullZoom = aZoom;
 }
 /**
  * Return child accessible at the given point.
  *
  * @param aIdentifier        [in] accessible identifier
  * @param aX                 [in] x coordinate of the point relative accessible
  * @param aY                 [in] y coordinate of the point relative accessible
  * @param aFindDeepestChild  [in] points whether deepest or nearest child should
  *                           be returned
  * @return                   the child accessible at the given point
  */
 function getChildAtPoint(aIdentifier, aX, aY, aFindDeepestChild)
 {
   var acc = getAccessible(aIdentifier);
   if (!acc)
     return;
   var [screenX, screenY] = getBoundsForDOMElm(acc.DOMNode);
   var x = screenX + aX;
   var y = screenY + aY;
   try {
     if (aFindDeepestChild)
       return acc.getDeepestChildAtPoint(x, y);
     return acc.getChildAtPoint(x, y);
   } catch (e) {  }
   return null;
 }
 /**
  * Test the accessible position.
  */
 function testPos(aID, aPoint)
 {
   var [expectedX, expectedY] =
     (aPoint != undefined) ? aPoint : getBoundsForDOMElm(aID);
   var [x, y] = getBounds(aID);
   is(x, expectedX, "Wrong x coordinate of " + prettyName(aID));
   is(y, expectedY, "Wrong y coordinate of " + prettyName(aID));
 }
 /**
  * Test the accessible boundaries.
  */
 function testBounds(aID, aRect)
 {
   var [expectedX, expectedY, expectedWidth, expectedHeight] =
     (aRect != undefined) ? aRect : getBoundsForDOMElm(aID);
   var [x, y, width, height] = getBounds(aID);
   is(x, expectedX, "Wrong x coordinate of " + prettyName(aID));
   is(y, expectedY, "Wrong y coordinate of " + prettyName(aID));
   is(width, expectedWidth, "Wrong width of " + prettyName(aID));
   is(height, expectedHeight, "Wrong height of " + prettyName(aID));
 }
 /**
  * Test text position at the given offset.
  */
 function testTextPos(aID, aOffset, aPoint, aCoordOrigin)
 {
   var [expectedX, expectedY] = aPoint;
   var xObj = {}, yObj = {};
   var hyperText = getAccessible(aID, [nsIAccessibleText]);
   hyperText.getCharacterExtents(aOffset, xObj, yObj, {}, {}, aCoordOrigin);
   is(xObj.value, expectedX,
      "Wrong x coordinate at offset " + aOffset + " for " + prettyName(aID));
   ok(yObj.value - expectedY < 2 && expectedY - yObj.value < 2,
      "Wrong y coordinate at offset " + aOffset + " for " + prettyName(aID) +
      " - got " + yObj.value + ", expected " + expectedY +
      "The difference doesn't exceed 1.");
 }
 /**
  * Test text bounds that is enclosed betwene the given offsets.
  */
 function testTextBounds(aID, aStartOffset, aEndOffset, aRect, aCoordOrigin)
 {
   var [expectedX, expectedY, expectedWidth, expectedHeight] = aRect;
   var xObj = {}, yObj = {}, widthObj = {}, heightObj = {};
   var hyperText = getAccessible(aID, [nsIAccessibleText]);
   hyperText.getRangeExtents(aStartOffset, aEndOffset,
                             xObj, yObj, widthObj, heightObj, aCoordOrigin);
   is(xObj.value, expectedX,
      "Wrong x coordinate of text between offsets (" + aStartOffset + ", " +
      aEndOffset + ") for " + prettyName(aID));
   is(yObj.value, expectedY,
      "Wrong y coordinate of text between offsets (" + aStartOffset + ", " +
      aEndOffset + ") for " + prettyName(aID));
   var msg = "Wrong width of text between offsets (" + aStartOffset + ", " +
     aEndOffset + ") for " + prettyName(aID);
   if (widthObj.value == expectedWidth)
     ok(true, msg);
   else
     todo(false, msg); // fails on some windows machines
   is(heightObj.value, expectedHeight,
      "Wrong height of text between offsets (" + aStartOffset + ", " +
      aEndOffset + ") for " + prettyName(aID));
 }
 /**
  * Return the accessible coordinates relative to the screen in device pixels.
  */
 function getPos(aID)
 {
   var accessible = getAccessible(aID);
   var x = {}, y = {};
   accessible.getBounds(x, y, {}, {});
   return [x.value, y.value];
 }
 /**
  * Return the accessible coordinates and size relative to the screen in device
  * pixels.
  */
 function getBounds(aID)
 {
   var accessible = getAccessible(aID);
   var x = {}, y = {}, width = {}, height = {};
   accessible.getBounds(x, y, width, height);
   return [x.value, y.value, width.value, height.value];
 }
 /**
  * Return DOM node coordinates relative the screen and its size in device
  * pixels.
  */
 function getBoundsForDOMElm(aID)
 {
   var x = 0, y = 0, width = 0, height = 0;
   var elm = getNode(aID);
   if (elm.localName == "area") {
     var mapName = elm.parentNode.getAttribute("name");
     var selector = "[usemap='#" + mapName + "']";
     var img = elm.ownerDocument.querySelector(selector);
     var areaCoords = elm.coords.split(",");
     var areaX = parseInt(areaCoords[0]);
     var areaY = parseInt(areaCoords[1]);
     var areaWidth = parseInt(areaCoords[2]) - areaX;
     var areaHeight = parseInt(areaCoords[3]) - areaY;
     var rect = img.getBoundingClientRect();
     x = rect.left + areaX;
     y = rect.top + areaY;
     width = areaWidth;
     height = areaHeight;
   }
   else {
     var rect = elm.getBoundingClientRect();
     x = rect.left;
     y = rect.top;
     width = rect.width;
     height = rect.height;
   }
   var elmWindow = elm.ownerDocument.defaultView;
   return CSSToDevicePixels(elmWindow,
                            x + elmWindow.mozInnerScreenX,
                            y + elmWindow.mozInnerScreenY,
                            width,
                            height);
 }
 function CSSToDevicePixels(aWindow, aX, aY, aWidth, aHeight)
 {
   var winUtil = aWindow.
     QueryInterface(Components.interfaces.nsIInterfaceRequestor).
     getInterface(Components.interfaces.nsIDOMWindowUtils);
   var ratio = winUtil.screenPixelsPerCSSPixel;
   // CSS pixels and ratio can be not integer. Device pixels are always integer.
   // Do our best and hope it works.
   return [ Math.round(aX * ratio), Math.round(aY * ratio),
            Math.round(aWidth * ratio), Math.round(aHeight * ratio) ];
 }