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Significant improvements to tree-handling.

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* Don't manipulate selection in any way. Leave that to Godot, and I'll fix issues in the engine if needed.
* Unify speech rendering of tree rows. This results in more useful announcements of buttons and such when tree items receive focus.
* Only handle `ui_up` and `ui_down` to ensure that focus won't leave a tree when the top-most or bottom-most row is arrowed past.
* Add a bit of handling to strip out duplicate collapse/focus events generated by the remote `SceneTree` in an active game.
This commit is contained in:
Nolan Darilek 2020-06-06 12:05:59 -05:00
parent 123e475fed
commit 548199d647
1 changed files with 62 additions and 77 deletions
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103
Accessible.gd
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@ -331,54 +331,16 @@ func text_edit_input(event):
pass
func tree_item_render():
var focused_tree_item = node.get_selected()
var tokens = PoolStringArray([])
for i in range(node.columns):
tokens.append(focused_tree_item.get_text(i))
if focused_tree_item.get_children():
if focused_tree_item.collapsed:
tokens.append("collapsed")
else:
tokens.append("expanded")
tokens.append("tree item")
if focused_tree_item.is_selected(0):
tokens.append("selected")
TTS.speak(tokens.join(": "), true)
var _last_tree_item_tokens
func tree_item_deselect_all(item: TreeItem):
for i in range(node.columns):
item.deselect(i)
func tree_deselect_all_but(target: TreeItem, tree: Tree):
var cur = tree.get_root()
while cur != null:
if cur != target:
tree_item_deselect_all(cur)
cur = tree.get_next_selected(cur)
var prev_selected_cell
var button_index
func tree_item_selected():
button_index = null
func _tree_item_render():
if not node.has_focus():
return
var cell = node.get_selected()
if cell != prev_selected_cell:
if node.select_mode == Tree.SELECT_MULTI:
cell.select(0)
tree_deselect_all_but(cell, node)
if node.has_focus():
tree_item_render()
prev_selected_cell = cell
else:
var tokens = PoolStringArray([])
for i in range(node.columns):
if cell.is_selected(i):
if node.select_mode == Tree.SELECT_MULTI or cell.is_selected(i):
var title = node.get_column_title(i)
if title:
tokens.append(title)
@ -395,14 +357,31 @@ func tree_item_selected():
+ TTS.singular_or_plural(button_count, "button", "buttons")
)
)
if cell.has_method("get_button_tooltip"):
var button_tooltip = cell.get_button_tooltip(i, button_index)
if button_tooltip:
tokens.append(button_tooltip)
tokens.append("button")
if button_count > 1:
tokens.append("Use Home and End to switch focus.")
if cell.get_children():
if cell.collapsed:
tokens.append("collapsed")
else:
tokens.append("expanded")
tokens.append("tree item")
if tokens != _last_tree_item_tokens:
TTS.speak(tokens.join(": "), true)
_last_tree_item_tokens = tokens
var prev_selected_cell
var button_index
func _tree_item_or_cell_selected():
button_index = null
_tree_item_render()
func tree_item_multi_selected(item, column, selected):
@ -412,7 +391,9 @@ func tree_item_multi_selected(item, column, selected):
TTS.speak("unselected", true)
func tree_input(event):
func _tree_input(event):
if event.is_action_pressed("ui_up") or event.is_action_pressed("ui_down"):
node.accept_event()
var item = node.get_selected()
var column
if item:
@ -431,7 +412,7 @@ func tree_input(event):
node.rect_global_position.y + area.position.y + area.size.y / 2
)
node.get_tree().root.warp_mouse(position)
if item and column and button_index != null:
if item and column != null and button_index != null:
if event.is_action_pressed("ui_accept"):
node.accept_event()
return node.emit_signal("button_pressed", item, column, button_index + 1)
@ -457,18 +438,29 @@ func tree_input(event):
func tree_focused():
_last_tree_item_tokens = null
if node.get_selected():
tree_item_render()
_tree_item_render()
else:
TTS.speak("tree", true)
func tree_item_collapsed(item):
var _was_collapsed
func _tree_item_collapsed(item):
if node.has_focus():
var selected = false
for column in range(node.columns):
if item.is_selected(column):
selected = true
break
if selected and item.collapsed != _was_collapsed:
if item.collapsed:
TTS.speak("collapsed", true)
else:
TTS.speak("expanded", true)
_was_collapsed = item.collapsed
func progress_bar_focused():
@ -605,14 +597,7 @@ func gui_input(event):
elif node is TextEdit:
return text_edit_input(event)
elif node is Tree:
if (
event.is_action_pressed("ui_up")
or event.is_action_pressed("ui_down")
or event.is_action_pressed("ui_left")
or event.is_action_pressed("ui_right")
):
node.accept_event()
return tree_input(event)
return _tree_input(event)
elif node.is_class("EditorInspectorSection"):
return editor_inspector_section_input(event)
@ -721,10 +706,10 @@ func _init(node):
elif node is TabContainer:
node.connect("tab_changed", self, "tab_container_tab_changed")
elif node is Tree:
node.connect("item_collapsed", self, "tree_item_collapsed")
node.connect("item_collapsed", self, "_tree_item_collapsed")
node.connect("multi_selected", self, "tree_item_multi_selected")
if node.select_mode == Tree.SELECT_MULTI:
node.connect("cell_selected", self, "tree_item_selected")
node.connect("cell_selected", self, "_tree_item_or_cell_selected")
else:
node.connect("item_selected", self, "tree_item_selected")
node.connect("item_selected", self, "_tree_item_or_cell_selected")
node.connect("tree_exiting", self, "queue_free", [], Object.CONNECT_DEFERRED)