[epiphany] web-view: Add mnemonics for error page buttons

[Michael Catanzaro <mcatanzaro src gnome org>]

commit cc67c5f394a94e3b5e1cf232772d73a9cb2e90f5
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Sun Jan 24 19:23:43 2016 -0600

    web-view: Add mnemonics for error page buttons
    
    Unfortunately WebKit does not actually render the access key, so there's
    no way to know it's there, but it's better than not having any access
    key.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761069

 embed/ephy-web-view.c    |   14 ++++++++++++--
 src/resources/error.html |    2 +-
 2 files changed, 13 insertions(+), 3 deletions(-)
---
diff --git a/embed/ephy-web-view.c b/embed/ephy-web-view.c
index bef99c5..389a665 100644
--- a/embed/ephy-web-view.c
+++ b/embed/ephy-web-view.c
@@ -1856,6 +1856,7 @@ ephy_web_view_load_error_page (EphyWebView *view,
   char *stylesheet;
   char *load_anyway_js = NULL;
   const char *custom_class;
+  const char *accesskey;
   GBytes *html_file;
 
   view->loading_error_page = TRUE;
@@ -1892,8 +1893,10 @@ ephy_web_view_load_error_page (EphyWebView *view,
                                "address. You may wish to verify that your "
                                "internet connection is working correctly.</p>"),
                              uri, reason);
-      button_label = g_strdup (_("Try again"));
+      button_label = g_strdup (_("Try Again"));
       custom_class = "network-error";
+      /* Access key for the "Try Again" button on the network error page. */
+      accesskey = dgettext ("accesskey", "A");
       break;
     case EPHY_WEB_VIEW_ERROR_PAGE_CRASH:
       page_title = g_strdup_printf (_("Problem loading “%s”"), hostname);
@@ -1906,6 +1909,8 @@ ephy_web_view_load_error_page (EphyWebView *view,
                              LSB_DISTRIBUTOR);
       button_label = g_strdup (_("Reload Anyway"));
       custom_class = "page-crash";
+      /* Access key for the "Reload Anyway" button on the crash error page. */
+      accesskey = dgettext ("accesskey", "A");
       break;
     case EPHY_WEB_VIEW_ERROR_PROCESS_CRASH:
       page_title = g_strdup_printf (_("Problem displaying “%s”"), hostname);
@@ -1913,6 +1918,8 @@ ephy_web_view_load_error_page (EphyWebView *view,
       msg = g_strdup (_("Something went wrong while displaying this page. Please reload or visit a different 
page to continue."));
       button_label = g_strdup (_("Reload Anyway"));
       custom_class = "process-crash";
+      /* Access key for the "Reload Anyway" button on the crash error page. */
+      accesskey = dgettext ("accesskey", "A");
       break;
     case EPHY_WEB_VIEW_ERROR_INVALID_TLS_CERTIFICATE:
       /* Page title when a site cannot be loaded. %s is the site's hostname. */
@@ -1923,6 +1930,8 @@ ephy_web_view_load_error_page (EphyWebView *view,
       /* Button on error page when a website's TLS certificate is invalid. */
       button_label = g_strdup (_("Load Anyway"));
       custom_class = "tls-error";
+      /* Access key for the "Load Anyway" button on the TLS error page. */
+      accesskey = dgettext ("accesskey", "A");
       load_anyway_js = g_strdup_printf 
("window.webkit.messageHandlers.tlsErrorPage.postMessage(%"G_GUINT64_FORMAT");",
                                         webkit_web_view_get_page_id (WEBKIT_WEB_VIEW (view)));
       break;
@@ -1949,7 +1958,8 @@ ephy_web_view_load_error_page (EphyWebView *view,
                    stylesheet,
                    load_anyway_js,
                    custom_class,
-                   msg_title, msg, button_label);
+                   msg_title, msg,
+                   accesskey, button_label);
 #pragma GCC diagnostic pop
 
   g_bytes_unref (html_file);
diff --git a/src/resources/error.html b/src/resources/error.html
index a770fa0..1663323 100644
--- a/src/resources/error.html
+++ b/src/resources/error.html
@@ -37,7 +37,7 @@
           </div>
 
           <div class="buttonbox">
-            <button onclick="javascript:load_anyway()">%s</button>
+            <button accesskey="%s" onclick="javascript:load_anyway()">%s</button>
           </div>
       </div>
   </div>