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Bug 338048: Richlistbox in Add-ons window not accessible to screenreaders, patch by Mark Pilgrim <pilgrim@gmail.com>, r=mano

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gavin%gavinsharp.com 2006-08-09 18:12:36 +00:00
parent 1b097f304c
commit 2065c3921a
1 changed files with 58 additions and 3 deletions
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61
toolkit/mozapps/extensions/content/extensions.xml
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@ -175,9 +175,9 @@
<xul:hbox flex="1">
<xul:vbox class="addon-icon" xbl:inherits="iconURL"/>
<xul:vbox flex="1" class="addonTextBox">
<xul:hbox class="addon-name-version" xbl:inherits="name, version"/>
<xul:label class="descriptionWrap" xbl:inherits="xbl:text=description"/>
<xul:vbox class="selectedStatusMsgs">
<xul:hbox anonid="addonNameVersion" class="addon-name-version" xbl:inherits="name, version"/>
<xul:label anonid="addonDescriptionWrap" class="descriptionWrap" xbl:inherits="value=description"/>
<xul:vbox anonid="addonSelectedStatusMsgs" class="selectedStatusMsgs">
<xul:hbox class="addon-optype attention" align="center"/>
<xul:hbox flex="1" class="updateAvailableBox attention">
<xul:label xbl:inherits="value=updateAvailableMsg" crop="end"/>
@ -253,6 +253,61 @@
}
]]>
</constructor>
<field name="_nameVersion">
document.getAnonymousElementByAttribute(this, "anonid", "addonNameVersion");
</field>
<field name="_descriptionWrap">
document.getAnonymousElementByAttribute(this, "anonid", "addonDescriptionWrap");
</field>
<field name="_selectedStatusMsgs">
document.getAnonymousElementByAttribute(this, "anonid", "addonSelectedStatusMsgs");
</field>
<property name="label" readonly="true">
<getter>
<![CDATA[
var labelPieces = [];
// Add name and version
labelPieces.push(this._nameVersion.getAttribute("name"));
labelPieces.push(this._nameVersion.getAttribute("version"));
// Add description
labelPieces.push(this._descriptionWrap.value);
// Add selected status messages, if any are visible.
// Note 1: visibility of status messages is set by CSS rule,
// not XUL attributes, so we need to use getComputedStyle.
// Note 2: relevant CSS rule is set on the label's parent node;
// the label node itself always has "display:-moz-box" which is
// not useful.
var labels = this._selectedStatusMsgs.getElementsByTagNameNS(
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul",
"label");
var numLabels = labels.length;
for (var i = 0; i < numLabels; i++) {
var label = labels[i];
var parentStyle = document.defaultView.getComputedStyle(label.parentNode, "");
// Optimization: we only check a few cases here that we know
// are used by the Add-ons window. For example, the generic
// richlistbox.xml label getter checks label.collapsed, but
// we don't check that here because we know that the Add-ons
// window doesn't use it.
if (!label.hidden &&
label.className != "text-link" &&
parentStyle.display != "none") {
labelPieces.push(label.value);
}
}
return labelPieces.join(" ");
]]>
</getter>
</property>
</implementation>
<handlers>