1 files changed, 170 insertions, 0 deletions
diff --git a/Tools/DumpRenderTree/atk/AccessibilityCallbacksAtk.cpp b/Tools/DumpRenderTree/atk/AccessibilityCallbacksAtk.cpp
new file mode 100644
index 000000000..1ea4f4aac
--- /dev/null
+++ b/Tools/DumpRenderTree/atk/AccessibilityCallbacksAtk.cpp
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2011 Igalia S.L.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "AccessibilityCallbacks.h"
+
+#if HAVE(ACCESSIBILITY)
+
+#include "AccessibilityController.h"
+#include "DumpRenderTree.h"
+#include <atk/atk.h>
+#include <wtf/gobject/GOwnPtr.h>
+
+#if PLATFORM(GTK)
+#include "WebCoreSupport/DumpRenderTreeSupportGtk.h"
+#include <webkit/webkit.h>
+#endif
+
+#if PLATFORM(EFL)
+#include "DumpRenderTreeChrome.h"
+#include "WebCoreSupport/DumpRenderTreeSupportEfl.h"
+#endif
+
+static guint stateChangeListenerId = 0;
+static guint focusEventListenerId = 0;
+static guint activeDescendantChangedListenerId = 0;
+static guint childrenChangedListenerId = 0;
+static guint propertyChangedListenerId = 0;
+static guint visibleDataChangedListenerId = 0;
+
+static void printAccessibilityEvent(AtkObject* accessible, const gchar* signalName, const gchar* signalValue)
+{
+    // Do not handle state-change:defunct signals, as the AtkObject
+    // associated to them will not be valid at this point already.
+    if (!signalName || !g_strcmp0(signalName, "state-change:defunct"))
+        return;
+
+    if (!accessible || !ATK_IS_OBJECT(accessible))
+        return;
+
+    const gchar* objectName = atk_object_get_name(accessible);
+    AtkRole objectRole = atk_object_get_role(accessible);
+
+    // Try to always provide a name to be logged for the object.
+    if (!objectName || *objectName == '\0')
+        objectName = "(No name)";
+
+    GOwnPtr<gchar> signalNameAndValue(signalValue ? g_strdup_printf("%s = %s", signalName, signalValue) : g_strdup(signalName));
+    printf("Accessibility object emitted \"%s\" / Name: \"%s\" / Role: %d\n", signalNameAndValue.get(), objectName, objectRole);
+}
+
+static gboolean axObjectEventListener(GSignalInvocationHint *signalHint, guint numParamValues, const GValue *paramValues, gpointer data)
+{
+    // At least we should receive the instance emitting the signal.
+    if (numParamValues < 1)
+        return TRUE;
+
+    AtkObject* accessible = ATK_OBJECT(g_value_get_object(&paramValues[0]));
+    if (!accessible || !ATK_IS_OBJECT(accessible))
+        return TRUE;
+
+    GSignalQuery signalQuery;
+    GOwnPtr<gchar> signalName;
+    GOwnPtr<gchar> signalValue;
+
+    g_signal_query(signalHint->signal_id, &signalQuery);
+
+    if (!g_strcmp0(signalQuery.signal_name, "state-change")) {
+        signalName.set(g_strdup_printf("state-change:%s", g_value_get_string(&paramValues[1])));
+        signalValue.set(g_strdup_printf("%d", g_value_get_boolean(&paramValues[2])));
+    } else if (!g_strcmp0(signalQuery.signal_name, "focus-event")) {
+        signalName.set(g_strdup("focus-event"));
+        signalValue.set(g_strdup_printf("%d", g_value_get_boolean(&paramValues[1])));
+    } else if (!g_strcmp0(signalQuery.signal_name, "children-changed")) {
+        signalName.set(g_strdup("children-changed"));
+        signalValue.set(g_strdup_printf("%d", g_value_get_uint(&paramValues[1])));
+    } else if (!g_strcmp0(signalQuery.signal_name, "property-change"))
+        signalName.set(g_strdup_printf("property-change:%s", g_quark_to_string(signalHint->detail)));
+    else
+        signalName.set(g_strdup(signalQuery.signal_name));
+
+    printAccessibilityEvent(accessible, signalName.get(), signalValue.get());
+
+    return TRUE;
+}
+
+void connectAccessibilityCallbacks()
+{
+    // Ensure no callbacks are connected before.
+    disconnectAccessibilityCallbacks();
+
+    // Ensure that accessibility is initialized for the WebView by querying for
+    // the root accessible object, which will create the full hierarchy.
+#if PLATFORM(GTK)
+    DumpRenderTreeSupportGtk::getRootAccessibleElement(mainFrame);
+#elif PLATFORM(EFL)
+    DumpRenderTreeSupportEfl::rootAccessibleElement(browser->mainFrame());
+#endif
+
+    // Add global listeners for AtkObject's signals.
+    stateChangeListenerId = atk_add_global_event_listener(axObjectEventListener, "ATK:AtkObject:state-change");
+    focusEventListenerId = atk_add_global_event_listener(axObjectEventListener, "ATK:AtkObject:focus-event");
+    activeDescendantChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "ATK:AtkObject:active-descendant-changed");
+    childrenChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "ATK:AtkObject:children-changed");
+    propertyChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "ATK:AtkObject:property-change");
+    visibleDataChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "ATK:AtkObject:visible-data-changed");
+
+    // Ensure the Atk interface types are registered, otherwise
+    // the AtkDocument signal handlers below won't get registered.
+    GObject* dummyAxObject = G_OBJECT(g_object_new(ATK_TYPE_OBJECT, 0));
+    AtkObject* dummyNoOpAxObject = atk_no_op_object_new(dummyAxObject);
+    g_object_unref(G_OBJECT(dummyNoOpAxObject));
+    g_object_unref(dummyAxObject);
+}
+
+void disconnectAccessibilityCallbacks()
+{
+    // AtkObject signals.
+    if (stateChangeListenerId) {
+        atk_remove_global_event_listener(stateChangeListenerId);
+        stateChangeListenerId = 0;
+    }
+    if (focusEventListenerId) {
+        atk_remove_global_event_listener(focusEventListenerId);
+        focusEventListenerId = 0;
+    }
+    if (activeDescendantChangedListenerId) {
+        atk_remove_global_event_listener(activeDescendantChangedListenerId);
+        activeDescendantChangedListenerId = 0;
+    }
+    if (childrenChangedListenerId) {
+        atk_remove_global_event_listener(childrenChangedListenerId);
+        childrenChangedListenerId = 0;
+    }
+    if (propertyChangedListenerId) {
+        atk_remove_global_event_listener(propertyChangedListenerId);
+        propertyChangedListenerId = 0;
+    }
+    if (visibleDataChangedListenerId) {
+        atk_remove_global_event_listener(visibleDataChangedListenerId);
+        visibleDataChangedListenerId = 0;
+    }
+}
+
+#endif