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Add initial accessibility support to the Linux shell
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2013 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/shell/platform/linux/fl_accessibility_plugin.h" | ||
| #include "flutter/shell/platform/linux/fl_accessible.h" | ||
| #include "flutter/shell/platform/linux/fl_view_accessible.h" | ||
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| struct _FlAccessibilityPlugin { | ||
| GObject parent_instance; | ||
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| FlView* view; | ||
| }; | ||
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| G_DEFINE_TYPE(FlAccessibilityPlugin, fl_accessibility_plugin, G_TYPE_OBJECT) | ||
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| static void view_weak_notify_cb(gpointer user_data, GObject* object) { | ||
| FlAccessibilityPlugin* self = FL_ACCESSIBILITY_PLUGIN(object); | ||
| self->view = nullptr; | ||
| } | ||
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| static void fl_accessibility_plugin_dispose(GObject* object) { | ||
| FlAccessibilityPlugin* self = FL_ACCESSIBILITY_PLUGIN(object); | ||
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| if (self->view != nullptr) { | ||
| g_object_weak_unref(G_OBJECT(self->view), view_weak_notify_cb, self); | ||
| self->view = nullptr; | ||
| } | ||
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| G_OBJECT_CLASS(fl_accessibility_plugin_parent_class)->dispose(object); | ||
| } | ||
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| static void fl_accessibility_plugin_class_init( | ||
| FlAccessibilityPluginClass* klass) { | ||
| G_OBJECT_CLASS(klass)->dispose = fl_accessibility_plugin_dispose; | ||
| } | ||
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| static void fl_accessibility_plugin_init(FlAccessibilityPlugin* self) {} | ||
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| FlAccessibilityPlugin* fl_accessibility_plugin_new(FlView* view) { | ||
| FlAccessibilityPlugin* self = FL_ACCESSIBILITY_PLUGIN( | ||
| g_object_new(fl_accessibility_plugin_get_type(), nullptr)); | ||
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| self->view = view; | ||
| g_object_weak_ref(G_OBJECT(view), view_weak_notify_cb, self); | ||
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| return self; | ||
| } | ||
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| void fl_accessibility_plugin_handle_update_semantics_node( | ||
| FlAccessibilityPlugin* self, | ||
| const FlutterSemanticsNode* node) { | ||
| if (self->view != nullptr) { | ||
| AtkObject* accessible = gtk_widget_get_accessible(GTK_WIDGET(self->view)); | ||
| fl_view_accessible_handle_update_semantics_node( | ||
| FL_VIEW_ACCESSIBLE(accessible), node); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| // Copyright 2013 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #ifndef FLUTTER_SHELL_PLATFORM_LINUX_FL_ACCESSIBILITY_PLUGIN_H_ | ||
| #define FLUTTER_SHELL_PLATFORM_LINUX_FL_ACCESSIBILITY_PLUGIN_H_ | ||
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| #include "flutter/shell/platform/linux/public/flutter_linux/fl_view.h" | ||
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| #include "flutter/shell/platform/embedder/embedder.h" | ||
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| G_BEGIN_DECLS | ||
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| G_DECLARE_FINAL_TYPE(FlAccessibilityPlugin, | ||
| fl_accessibility_plugin, | ||
| FL, | ||
| ACCESSIBILITY_PLUGIN, | ||
| GObject); | ||
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| /** | ||
| * FlAccessibilityPlugin: | ||
| * | ||
| * #FlAccessibilityPlugin is a plugin that handles semantic node updates and | ||
| * converts them to ATK events. | ||
| */ | ||
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| /** | ||
| * fl_accessibility_plugin_new: | ||
| * @view: an #FlView to export accessibility information to. | ||
| * | ||
| * Creates a new plugin handles semantic node updates. | ||
| * | ||
| * Returns: a new #FlAccessibilityPlugin. | ||
| */ | ||
| FlAccessibilityPlugin* fl_accessibility_plugin_new(FlView* view); | ||
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| /** | ||
| * fl_accessibility_plugin_handle_update_semantics_node: | ||
| * @plugin: an #FlAccessibilityPlugin. | ||
| * @node: semantic node information. | ||
| * | ||
| * Handle a semantics node update. | ||
| */ | ||
| void fl_accessibility_plugin_handle_update_semantics_node( | ||
| FlAccessibilityPlugin* plugin, | ||
| const FlutterSemanticsNode* node); | ||
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| G_END_DECLS | ||
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| #endif // FLUTTER_SHELL_PLATFORM_LINUX_FL_ACCESSIBILITY_PLUGIN_H_ |
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