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fl_view_accessible.cc File Reference

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Classes

struct  _FlViewAccessible
 

Enumerations

enum  {
  kProp0,
  kPropEngine,
  kPropLast
}
 

Functions

static FlAccessibleNode * create_node (FlViewAccessible *self, FlutterSemanticsNode2 *semantics)
 
static FlAccessibleNode * lookup_node (FlViewAccessible *self, int32_t id)
 
static FlAccessibleNode * get_node (FlViewAccessible *self, FlutterSemanticsNode2 *semantics)
 
static gint fl_view_accessible_get_n_children (AtkObject *accessible)
 
static AtkObject * fl_view_accessible_ref_child (AtkObject *accessible, gint i)
 
static AtkRole fl_view_accessible_get_role (AtkObject *accessible)
 
static AtkStateSet * fl_view_accessible_ref_state_set (AtkObject *accessible)
 
static void fl_view_accessible_dispose (GObject *object)
 
static void fl_view_accessible_class_init (FlViewAccessibleClass *klass)
 
static void fl_view_accessible_init (FlViewAccessible *self)
 
FlViewAccessible * fl_view_accessible_new (FlEngine *engine)
 
void fl_view_accessible_handle_update_semantics (FlViewAccessible *self, const FlutterSemanticsUpdate2 *update)
 

Variables

static constexpr int32_t kRootSemanticsNodeId = 0
 

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
kProp0 
kPropEngine 
kPropLast 

Definition at line 25 of file fl_view_accessible.cc.

Function Documentation

◆ create_node()

static FlAccessibleNode* create_node ( FlViewAccessible *  self,
FlutterSemanticsNode2 *  semantics 
)
static

Definition at line 29 of file fl_view_accessible.cc.

30  {
31  if (semantics->flags & kFlutterSemanticsFlagIsTextField) {
32  return fl_accessible_text_field_new(self->engine, semantics->id);
33  }
34 
35  return fl_accessible_node_new(self->engine, semantics->id);
36 }

References fl_accessible_node_new(), and fl_accessible_text_field_new().

Referenced by get_node().

◆ fl_view_accessible_class_init()

static void fl_view_accessible_class_init ( FlViewAccessibleClass *  klass)
static

Definition at line 119 of file fl_view_accessible.cc.

119  {
120  ATK_OBJECT_CLASS(klass)->get_n_children = fl_view_accessible_get_n_children;
121  ATK_OBJECT_CLASS(klass)->ref_child = fl_view_accessible_ref_child;
122  ATK_OBJECT_CLASS(klass)->get_role = fl_view_accessible_get_role;
123  ATK_OBJECT_CLASS(klass)->ref_state_set = fl_view_accessible_ref_state_set;
124 
125  G_OBJECT_CLASS(klass)->dispose = fl_view_accessible_dispose;
126 }

References fl_view_accessible_dispose(), fl_view_accessible_get_n_children(), fl_view_accessible_get_role(), fl_view_accessible_ref_child(), and fl_view_accessible_ref_state_set().

◆ fl_view_accessible_dispose()

static void fl_view_accessible_dispose ( GObject *  object)
static

Definition at line 105 of file fl_view_accessible.cc.

105  {
106  FlViewAccessible* self = FL_VIEW_ACCESSIBLE(object);
107 
108  g_clear_pointer(&self->semantics_nodes_by_id, g_hash_table_unref);
109 
110  if (self->engine != nullptr) {
111  g_object_remove_weak_pointer(object,
112  reinterpret_cast<gpointer*>(&self->engine));
113  self->engine = nullptr;
114  }
115 
116  G_OBJECT_CLASS(fl_view_accessible_parent_class)->dispose(object);
117 }

Referenced by fl_view_accessible_class_init().

◆ fl_view_accessible_get_n_children()

static gint fl_view_accessible_get_n_children ( AtkObject *  accessible)
static

Definition at line 70 of file fl_view_accessible.cc.

70  {
71  FlViewAccessible* self = FL_VIEW_ACCESSIBLE(accessible);
72  FlAccessibleNode* node = lookup_node(self, 0);
73 
74  if (node == nullptr) {
75  return 0;
76  }
77 
78  return 1;
79 }

References lookup_node().

Referenced by fl_view_accessible_class_init().

◆ fl_view_accessible_get_role()

static AtkRole fl_view_accessible_get_role ( AtkObject *  accessible)
static

Definition at line 94 of file fl_view_accessible.cc.

94  {
95  return ATK_ROLE_PANEL;
96 }

Referenced by fl_view_accessible_class_init().

◆ fl_view_accessible_handle_update_semantics()

void fl_view_accessible_handle_update_semantics ( FlViewAccessible *  accessible,
const FlutterSemanticsUpdate2 *  update 
)

fl_view_accessible_handle_update_semantics: @accessible: an #FlViewAccessible. @update: semantic update information.

Handle a semantics update from Flutter.

Definition at line 142 of file fl_view_accessible.cc.

144  {
145  g_autoptr(GHashTable) pending_children =
146  g_hash_table_new_full(g_direct_hash, g_direct_equal, nullptr,
147  reinterpret_cast<GDestroyNotify>(fl_value_unref));
148  for (size_t i = 0; i < update->node_count; i++) {
149  FlutterSemanticsNode2* node = update->nodes[i];
150  FlAccessibleNode* atk_node = get_node(self, node);
151 
152  fl_accessible_node_set_flags(atk_node, node->flags);
153  fl_accessible_node_set_actions(atk_node, node->actions);
154  fl_accessible_node_set_name(atk_node, node->label);
156  atk_node, node->rect.left + node->transform.transX,
157  node->rect.top + node->transform.transY,
158  node->rect.right - node->rect.left, node->rect.bottom - node->rect.top);
159  fl_accessible_node_set_value(atk_node, node->value);
160  fl_accessible_node_set_text_selection(atk_node, node->text_selection_base,
161  node->text_selection_extent);
162  fl_accessible_node_set_text_direction(atk_node, node->text_direction);
163 
164  FlValue* children = fl_value_new_int32_list(
165  node->children_in_traversal_order, node->child_count);
166  g_hash_table_insert(pending_children, atk_node, children);
167  }
168 
169  g_hash_table_foreach_remove(
170  pending_children,
171  [](gpointer key, gpointer value, gpointer user_data) -> gboolean {
172  FlViewAccessible* self = FL_VIEW_ACCESSIBLE(user_data);
173 
174  FlAccessibleNode* parent = FL_ACCESSIBLE_NODE(key);
175 
176  size_t child_count = fl_value_get_length(static_cast<FlValue*>(value));
177  const int32_t* children_in_traversal_order =
178  fl_value_get_int32_list(static_cast<FlValue*>(value));
179 
180  g_autoptr(GPtrArray) children = g_ptr_array_new();
181  for (size_t i = 0; i < child_count; i++) {
182  FlAccessibleNode* child =
183  lookup_node(self, children_in_traversal_order[i]);
184  g_assert(child != nullptr);
185  fl_accessible_node_set_parent(child, ATK_OBJECT(parent), i);
186  g_ptr_array_add(children, child);
187  }
188  fl_accessible_node_set_children(parent, children);
189 
190  return true;
191  },
192  self);
193 }

References fl_accessible_node_set_actions(), fl_accessible_node_set_children(), fl_accessible_node_set_extents(), fl_accessible_node_set_flags(), fl_accessible_node_set_name(), fl_accessible_node_set_parent(), fl_accessible_node_set_text_direction(), fl_accessible_node_set_text_selection(), fl_accessible_node_set_value(), fl_value_get_int32_list(), fl_value_get_length(), fl_value_new_int32_list(), fl_value_unref(), get_node(), i, lookup_node(), user_data, and value.

Referenced by TEST(), and update_semantics_cb().

◆ fl_view_accessible_init()

static void fl_view_accessible_init ( FlViewAccessible *  self)
static

Definition at line 128 of file fl_view_accessible.cc.

128  {
129  self->semantics_nodes_by_id = g_hash_table_new_full(
130  g_direct_hash, g_direct_equal, nullptr, g_object_unref);
131 }

◆ fl_view_accessible_new()

FlViewAccessible* fl_view_accessible_new ( FlEngine *  engine)

Definition at line 133 of file fl_view_accessible.cc.

133  {
134  FlViewAccessible* self =
135  FL_VIEW_ACCESSIBLE(g_object_new(fl_view_accessible_get_type(), nullptr));
136  self->engine = engine;
137  g_object_add_weak_pointer(G_OBJECT(self),
138  reinterpret_cast<gpointer*>(&self->engine));
139  return self;
140 }

Referenced by realize_cb(), and TEST().

◆ fl_view_accessible_ref_child()

static AtkObject* fl_view_accessible_ref_child ( AtkObject *  accessible,
gint  i 
)
static

Definition at line 82 of file fl_view_accessible.cc.

82  {
83  FlViewAccessible* self = FL_VIEW_ACCESSIBLE(accessible);
84  FlAccessibleNode* node = lookup_node(self, 0);
85 
86  if (i != 0 || node == nullptr) {
87  return nullptr;
88  }
89 
90  return ATK_OBJECT(g_object_ref(node));
91 }

References i, and lookup_node().

Referenced by fl_view_accessible_class_init().

◆ fl_view_accessible_ref_state_set()

static AtkStateSet* fl_view_accessible_ref_state_set ( AtkObject *  accessible)
static

Definition at line 99 of file fl_view_accessible.cc.

99  {
100  FlViewAccessible* self = FL_VIEW_ACCESSIBLE(accessible);
101  FlAccessibleNode* node = lookup_node(self, 0);
102  return node != nullptr ? atk_object_ref_state_set(ATK_OBJECT(node)) : nullptr;
103 }

References lookup_node().

Referenced by fl_view_accessible_class_init().

◆ get_node()

static FlAccessibleNode* get_node ( FlViewAccessible *  self,
FlutterSemanticsNode2 *  semantics 
)
static

Definition at line 45 of file fl_view_accessible.cc.

46  {
47  FlAccessibleNode* node = lookup_node(self, semantics->id);
48  if (node != nullptr) {
49  return node;
50  }
51 
52  node = create_node(self, semantics);
53  if (semantics->id == kRootSemanticsNodeId) {
54  fl_accessible_node_set_parent(node, ATK_OBJECT(self), 0);
55  }
56  g_hash_table_insert(self->semantics_nodes_by_id,
57  GINT_TO_POINTER(semantics->id),
58  reinterpret_cast<gpointer>(node));
59 
60  // Update when root node is created.
61  if (!self->root_node_created && semantics->id == kRootSemanticsNodeId) {
62  g_signal_emit_by_name(self, "children-changed::add", 0, node, nullptr);
63  self->root_node_created = true;
64  }
65 
66  return node;
67 }

References create_node(), fl_accessible_node_set_parent(), kRootSemanticsNodeId, and lookup_node().

Referenced by fl_view_accessible_handle_update_semantics().

◆ lookup_node()

static FlAccessibleNode* lookup_node ( FlViewAccessible *  self,
int32_t  id 
)
static

Definition at line 38 of file fl_view_accessible.cc.

38  {
39  return FL_ACCESSIBLE_NODE(
40  g_hash_table_lookup(self->semantics_nodes_by_id, GINT_TO_POINTER(id)));
41 }

Referenced by fl_view_accessible_get_n_children(), fl_view_accessible_handle_update_semantics(), fl_view_accessible_ref_child(), fl_view_accessible_ref_state_set(), and get_node().

Variable Documentation

◆ kRootSemanticsNodeId

constexpr int32_t kRootSemanticsNodeId = 0
staticconstexpr

Definition at line 11 of file fl_view_accessible.cc.

Referenced by get_node().

fl_value_get_int32_list
const G_MODULE_EXPORT int32_t * fl_value_get_int32_list(FlValue *self)
Definition: fl_value.cc:696
get_node
static FlAccessibleNode * get_node(FlViewAccessible *self, FlutterSemanticsNode2 *semantics)
Definition: fl_view_accessible.cc:45
kPropLast
@ kPropLast
Definition: fl_view_accessible.cc:25
fl_accessible_node_set_text_selection
void fl_accessible_node_set_text_selection(FlAccessibleNode *self, gint base, gint extent)
Definition: fl_accessible_node.cc:563
fl_view_accessible_ref_child
static AtkObject * fl_view_accessible_ref_child(AtkObject *accessible, gint i)
Definition: fl_view_accessible.cc:82
fl_accessible_node_set_flags
void fl_accessible_node_set_flags(FlAccessibleNode *self, FlutterSemanticsFlag flags)
Definition: fl_accessible_node.cc:543
fl_accessible_node_set_parent
void fl_accessible_node_set_parent(FlAccessibleNode *self, AtkObject *parent, gint index)
Definition: fl_accessible_node.cc:488
fl_accessible_text_field_new
FlAccessibleNode * fl_accessible_text_field_new(FlEngine *engine, int32_t id)
Definition: fl_accessible_text_field.cc:618
i
int i
Definition: fl_socket_accessible.cc:18
FlValue
typedefG_BEGIN_DECLS struct _FlValue FlValue
Definition: fl_value.h:42
user_data
FlKeyEvent uint64_t FlKeyResponderAsyncCallback gpointer user_data
Definition: fl_key_channel_responder.cc:121
fl_accessible_node_set_children
void fl_accessible_node_set_children(FlAccessibleNode *self, GPtrArray *children)
Definition: fl_accessible_node.cc:499
kProp0
@ kProp0
Definition: fl_view_accessible.cc:25
fl_value_unref
G_MODULE_EXPORT void fl_value_unref(FlValue *self)
Definition: fl_value.cc:400
create_node
static FlAccessibleNode * create_node(FlViewAccessible *self, FlutterSemanticsNode2 *semantics)
Definition: fl_view_accessible.cc:29
fl_view_accessible_dispose
static void fl_view_accessible_dispose(GObject *object)
Definition: fl_view_accessible.cc:105
fl_accessible_node_set_extents
void fl_accessible_node_set_extents(FlAccessibleNode *self, gint x, gint y, gint width, gint height)
Definition: fl_accessible_node.cc:532
fl_accessible_node_set_text_direction
void fl_accessible_node_set_text_direction(FlAccessibleNode *self, FlutterTextDirection direction)
Definition: fl_accessible_node.cc:572
kPropEngine
@ kPropEngine
Definition: fl_view_accessible.cc:25
fl_accessible_node_set_value
void fl_accessible_node_set_value(FlAccessibleNode *self, const gchar *value)
Definition: fl_accessible_node.cc:557
fl_value_new_int32_list
G_MODULE_EXPORT FlValue * fl_value_new_int32_list(const int32_t *data, size_t data_length)
Definition: fl_value.cc:309
fl_value_get_length
G_MODULE_EXPORT size_t fl_value_get_length(FlValue *self)
Definition: fl_value.cc:724
fl_accessible_node_new
FlAccessibleNode * fl_accessible_node_new(FlEngine *engine, int32_t id)
Definition: fl_accessible_node.cc:482
fl_view_accessible_ref_state_set
static AtkStateSet * fl_view_accessible_ref_state_set(AtkObject *accessible)
Definition: fl_view_accessible.cc:99
fl_view_accessible_get_n_children
static gint fl_view_accessible_get_n_children(AtkObject *accessible)
Definition: fl_view_accessible.cc:70
kRootSemanticsNodeId
static constexpr int32_t kRootSemanticsNodeId
Definition: fl_view_accessible.cc:11
fl_accessible_node_set_name
void fl_accessible_node_set_name(FlAccessibleNode *self, const gchar *name)
Definition: fl_accessible_node.cc:526
fl_accessible_node_set_actions
void fl_accessible_node_set_actions(FlAccessibleNode *self, FlutterSemanticsAction actions)
Definition: fl_accessible_node.cc:550
value
uint8_t value
Definition: fl_standard_message_codec.cc:36
lookup_node
static FlAccessibleNode * lookup_node(FlViewAccessible *self, int32_t id)
Definition: fl_view_accessible.cc:38
fl_view_accessible_get_role
static AtkRole fl_view_accessible_get_role(AtkObject *accessible)
Definition: fl_view_accessible.cc:94