Bug 1425541: Expose reader mode state on the browser accessible using a "reader" object attribute. r?eeejay, r?gijs
This makes it easy for accessibility clients to retrieve the reader mode state programmatically.
There are three possibilities:
1. Reader mode is available for the current page (reader:available).
2. Reader mode is being used now (reader:active).
3. Reader is not available (the reader attribute is not present).
We do this by setting/removing the aria-reader attribute on the node.
This is not a real ARIA attribute, but it causes Gecko to expose it as an object attribute.
MozReview-Commit-ID: B38G3AYyBnS
--- a/browser/modules/ReaderParent.jsm
+++ b/browser/modules/ReaderParent.jsm
@@ -53,34 +53,44 @@ var ReaderParent = {
let win = browser.ownerGlobal;
if (browser != win.gBrowser.selectedBrowser) {
return;
}
let button = win.document.getElementById("reader-mode-button");
let command = win.document.getElementById("View:ReaderView");
let key = win.document.getElementById("key_toggleReaderMode");
+ // aria-reader is not a real ARIA attribute. However, this will cause
+ // Gecko accessibility to expose the "reader" object attribute. We do this
+ // so that the reader state is easy for accessibility clients to access
+ // programmatically.
if (browser.currentURI.spec.startsWith("about:reader")) {
button.setAttribute("readeractive", true);
button.hidden = false;
let closeText = gStringBundle.GetStringFromName("readerView.close");
button.setAttribute("tooltiptext", closeText);
command.setAttribute("label", closeText);
command.setAttribute("hidden", false);
command.setAttribute("accesskey", gStringBundle.GetStringFromName("readerView.close.accesskey"));
key.setAttribute("disabled", false);
+ browser.setAttribute("aria-reader", "active");
} else {
button.removeAttribute("readeractive");
button.hidden = !browser.isArticle;
let enterText = gStringBundle.GetStringFromName("readerView.enter");
button.setAttribute("tooltiptext", enterText);
command.setAttribute("label", enterText);
command.setAttribute("hidden", !browser.isArticle);
command.setAttribute("accesskey", gStringBundle.GetStringFromName("readerView.enter.accesskey"));
key.setAttribute("disabled", !browser.isArticle);
+ if (browser.isArticle) {
+ browser.setAttribute("aria-reader", "available");
+ } else {
+ browser.removeAttribute("aria-reader");
+ }
}
},
forceShowReaderIcon(browser) {
browser.isArticle = true;
this.updateReaderButton(browser);
},
