1 files changed, 102 insertions, 0 deletions
diff --git a/application/basilisk/modules/ReaderParent.jsm b/application/basilisk/modules/ReaderParent.jsm
new file mode 100644
index 000000000..c81aa9905
--- /dev/null
+++ b/application/basilisk/modules/ReaderParent.jsm
@@ -0,0 +1,102 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+
+this.EXPORTED_SYMBOLS = [ "ReaderParent" ];
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils", "resource://gre/modules/PlacesUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ReaderMode", "resource://gre/modules/ReaderMode.jsm");
+
+const gStringBundle = Services.strings.createBundle("chrome://global/locale/aboutReader.properties");
+
+var ReaderParent = {
+  MESSAGES: [
+    "Reader:UpdateReaderButton",
+  ],
+
+  init() {
+    let mm = Cc["@mozilla.org/globalmessagemanager;1"].getService(Ci.nsIMessageListenerManager);
+    for (let msg of this.MESSAGES) {
+      mm.addMessageListener(msg, this);
+    }
+  },
+
+  receiveMessage(message) {
+    switch (message.name) {
+      case "Reader:UpdateReaderButton": {
+        let browser = message.target;
+        if (message.data && message.data.isArticle !== undefined) {
+          browser.isArticle = message.data.isArticle;
+        }
+        this.updateReaderButton(browser);
+        break;
+      }
+    }
+  },
+
+  updateReaderButton(browser) {
+    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);
+  },
+
+  buttonClick(event) {
+    if (event.button != 0) {
+      return;
+    }
+    this.toggleReaderMode(event);
+  },
+
+  toggleReaderMode(event) {
+    let win = event.target.ownerGlobal;
+    let browser = win.gBrowser.selectedBrowser;
+    browser.messageManager.sendAsyncMessage("Reader:ToggleReaderMode");
+  }
+};