зеркало из https://github.com/mozilla/gecko-dev.git
Bug 627718 - Map used for grouping is not accessible under certain circumstances, r=marcoz
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Коммит
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@ -70,6 +70,7 @@
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#include "nsImageFrame.h"
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#include "nsILink.h"
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#include "nsIObserverService.h"
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#include "nsLayoutUtils.h"
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#include "nsNPAPIPluginInstance.h"
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#include "nsISupportsUtils.h"
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#include "nsObjectFrame.h"
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@ -1012,15 +1013,14 @@ nsAccessibilityService::GetOrCreateAccessible(nsINode* aNode,
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if (isHTML && content->Tag() == nsGkAtoms::map) {
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// Create hyper text accessible for HTML map if it is used to group links
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// (see http://www.w3.org/TR/WCAG10-HTML-TECHS/#group-bypass). If the HTML
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// map doesn't have 'name' attribute (or has empty name attribute) then we
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// suppose it is used for links grouping. Otherwise we think it is used in
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// conjuction with HTML image element and in this case we don't create any
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// accessible for it and don't walk into it. The accessibles for HTML area
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// (nsHTMLAreaAccessible) the map contains are attached as children of the
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// appropriate accessible for HTML image (nsHTMLImageAccessible).
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nsAutoString name;
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content->GetAttr(kNameSpaceID_None, nsGkAtoms::name, name);
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if (!name.IsEmpty()) {
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// map rect is empty then it is used for links grouping. Otherwise it should
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// be used in conjunction with HTML image element and in this case we don't
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// create any accessible for it and don't walk into it. The accessibles for
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// HTML area (nsHTMLAreaAccessible) the map contains are attached as
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// children of the appropriate accessible for HTML image
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// (nsHTMLImageAccessible).
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if (nsLayoutUtils::GetAllInFlowRectsUnion(weakFrame,
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weakFrame->GetParent()).IsEmpty()) {
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if (aIsSubtreeHidden)
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*aIsSubtreeHidden = true;
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@ -65,6 +65,7 @@ _TEST_FILES =\
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test_img.html \
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test_invalidationlist.html \
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test_list.html \
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test_map.html \
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test_media.html \
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test_select.html \
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test_tabbox.xul \
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@ -0,0 +1,83 @@
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<!DOCTYPE html>
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<html>
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<head>
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<title>HTML map accessible tree tests</title>
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<link rel="stylesheet" type="text/css"
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href="chrome://mochikit/content/tests/SimpleTest/test.css" />
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<script type="application/javascript"
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src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<script type="application/javascript"
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src="../common.js"></script>
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<script type="application/javascript"
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src="../role.js"></script>
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<script type="application/javascript">
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function doTest()
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{
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// map used as imagemap, not accessible
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var accTree =
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{ SECTION: [ ] };
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testAccessibleTree("imagemapcontainer", accTree);
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// map group
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accTree =
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{ PARAGRAPH: [
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{ PARAGRAPH: [
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{ TEXT_LEAF: [ ] },
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{ LINK: [
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{ TEXT_LEAF: [ ] }
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] },
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{ TEXT_LEAF: [ ] },
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{ LINK: [
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{ TEXT_LEAF: [ ] }
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] },
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{ TEXT_LEAF: [ ] }
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] }
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] };
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testAccessibleTree("mapgroup", accTree);
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SimpleTest.finish();
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}
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SimpleTest.waitForExplicitFinish();
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addA11yLoadEvent(doTest);
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</script>
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</head>
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<body>
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<a target="_blank"
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title="Map used for grouping is not accessible under certain circumstances"
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href="https://bugzilla.mozilla.org/show_bug.cgi?id=627718">
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Mozilla Bug 627718
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</a>
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<p id="display"></p>
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<div id="content" style="display: none"></div>
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<pre id="test">
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</pre>
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<div id="imagemapcontainer">
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<map name="atoz_map">
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<area href="http://www.bbc.co.uk/radio4/atoz/index.shtml#b"
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coords="17,0,30,14" alt="b" shape="rect">
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<area href="http://www.bbc.co.uk/radio4/atoz/index.shtml#a"
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coords="0,0,13,14" alt="a" shape="rect">
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</map>
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</div>
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<img id="imgmap" width="447" height="15"
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usemap="#atoz_map"
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src="../letters.gif">
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<map id="mapgroup" title="Navigation Bar" name="mapgroup">
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<p>
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[<a href="#how">Bypass navigation bar</a>]
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[<a href="home.html">Home</a>]
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</p>
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</map>
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</body>
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</html>
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