diff options
Diffstat (limited to 'Tools/DumpRenderTree/gtk/AccessibilityCallbacks.cpp')
| -rw-r--r-- | Tools/DumpRenderTree/gtk/AccessibilityCallbacks.cpp | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/Tools/DumpRenderTree/gtk/AccessibilityCallbacks.cpp b/Tools/DumpRenderTree/gtk/AccessibilityCallbacks.cpp new file mode 100644 index 0000000..be66513 --- /dev/null +++ b/Tools/DumpRenderTree/gtk/AccessibilityCallbacks.cpp @@ -0,0 +1,196 @@ +/* + * 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" + +#include "AccessibilityController.h" +#include "DumpRenderTree.h" +#include "GOwnPtr.h" +#include "WebCoreSupport/DumpRenderTreeSupportGtk.h" +#include <gtk/gtk.h> +#include <webkit/webkit.h> + +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 guint loadCompleteListenerId = 0; +static guint loadStoppedListenerId = 0; +static guint reloadListenerId = 0; + +static void printAccessibilityEvent(AtkObject* accessible, const gchar* signalName) +{ + // Sanity check. + if (!accessible || !ATK_IS_OBJECT(accessible) || !signalName) + return; + + const gchar* objectName = atk_object_get_name(accessible); + guint 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)"; + + printf("Accessibility object emitted \"%s\" / Name: \"%s\" / Role: %d\n", + signalName, 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(¶mValues[0])); + if (!accessible || !ATK_IS_OBJECT(accessible)) + return TRUE; + + GSignalQuery signal_query; + GOwnPtr<gchar> signalName; + + g_signal_query(signalHint->signal_id, &signal_query); + + if (!g_strcmp0(signal_query.signal_name, "state-change")) { + signalName.set(g_strdup_printf("state-change:%s = %d", + g_value_get_string(¶mValues[1]), + g_value_get_boolean(¶mValues[2]))); + } else if (!g_strcmp0(signal_query.signal_name, "focus-event")) { + signalName.set(g_strdup_printf("focus-event = %d", + g_value_get_boolean(¶mValues[1]))); + } else if (!g_strcmp0(signal_query.signal_name, "children-changed")) { + signalName.set(g_strdup_printf("children-changed = %d", + g_value_get_uint(¶mValues[1]))); + } else + signalName.set(g_strdup(signal_query.signal_name)); + + printAccessibilityEvent(accessible, signalName.get()); + + return TRUE; +} + +static gboolean axDocumentEventListener(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(¶mValues[0])); + if (!accessible || !ATK_IS_DOCUMENT(accessible)) + return TRUE; + + GSignalQuery signal_query; + g_signal_query(signalHint->signal_id, &signal_query); + + printAccessibilityEvent(accessible, signal_query.signal_name); + + 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. + DumpRenderTreeSupportGtk::getRootAccessibleElement(mainFrame); + + // Add global listeners for AtkObject's signals. + stateChangeListenerId = atk_add_global_event_listener(axObjectEventListener, "Gtk:AtkObject:state-change"); + focusEventListenerId = atk_add_global_event_listener(axObjectEventListener, "Gtk:AtkObject:focus-event"); + activeDescendantChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "Gtk:AtkObject:active-descendant-changed"); + childrenChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "Gtk:AtkObject:children-changed"); + propertyChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "Gtk:AtkObject:property-change"); + visibleDataChangedListenerId = atk_add_global_event_listener(axObjectEventListener, "Gtk: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); + + // Add global listeners for AtkDocument's signals. + loadCompleteListenerId = atk_add_global_event_listener(axDocumentEventListener, "Gtk:AtkDocument:load-complete"); + loadStoppedListenerId = atk_add_global_event_listener(axDocumentEventListener, "Gtk:AtkDocument:load-stopped"); + reloadListenerId = atk_add_global_event_listener(axDocumentEventListener, "Gtk:AtkDocument:reload"); +} + +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; + } + + // AtkDocument signals. + if (loadCompleteListenerId) { + atk_remove_global_event_listener(loadCompleteListenerId); + loadCompleteListenerId = 0; + } + if (loadStoppedListenerId) { + atk_remove_global_event_listener(loadStoppedListenerId); + loadStoppedListenerId = 0; + } + if (reloadListenerId) { + atk_remove_global_event_listener(reloadListenerId); + reloadListenerId = 0; + } +} + |