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Highlight exact selected text ranges

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This commit is contained in:
hz
2026-07-09 21:42:31 -05:00
parent 866e5e6849
commit 6dd56697a6
1 changed files with 15 additions and 28 deletions
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scripts/ui/question_player.gd
+15 -28
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@@ -310,25 +310,30 @@ func _commit_current_text_selection() -> void:
var selected_text := stem_label.get_selected_text().strip_edges()
if selected_text == "":
return
_highlight_text(selected_text)
func _highlight_text(selected_text: String) -> void:
if selected_text == "":
var selection_start := stem_label.get_selection_from()
var selection_end := stem_label.get_selection_to()
if selection_start == selection_end:
return
if selection_start > selection_end:
var previous_start := selection_start
selection_start = selection_end
selection_end = previous_start
_highlight_range(selection_start, selection_end)
func _highlight_range(start: int, end: int) -> void:
var question_id := str(BlockSessionService.get_current_question().get("id", ""))
if not question_highlights.has(question_id):
question_highlights[question_id] = []
var highlights: Array = question_highlights[question_id]
var start := _find_available_highlight_start(selected_text, highlights)
if start == -1:
start = stem_plain_text.find(selected_text)
if start == -1:
return
start = clamp(start, 0, stem_plain_text.length())
end = clamp(end, start, stem_plain_text.length())
if start == end:
return
var end := start + selected_text.length()
if _remove_overlapping_highlights(highlights, start, end):
_render_stem()
if stem_label.has_method("deselect"):
@@ -370,24 +375,6 @@ func _escape_bbcode(value: String) -> String:
return value.replace("[", "[lb]").replace("]", "[rb]")
func _find_available_highlight_start(selected_text: String, highlights: Array) -> int:
var search_from := 0
while search_from < stem_plain_text.length():
var start := stem_plain_text.find(selected_text, search_from)
if start == -1:
return -1
var end := start + selected_text.length()
var overlaps := false
for highlight_range in highlights:
if start < int(highlight_range.get("end", 0)) and end > int(highlight_range.get("start", 0)):
overlaps = true
break
if not overlaps:
return start
search_from = start + 1
return -1
func _remove_overlapping_highlights(highlights: Array, start: int, end: int) -> bool:
var removed := false
for index in range(highlights.size() - 1, -1, -1):