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Extract reusable top bar suggestion bubble mount.

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Factor the floating cloud bubble's painting and scroll-mount wiring into shared helpers so the bubble content can be mounted standalone over any scrollable surface.
This commit is contained in:
John Preston
2026-06-23 16:49:06 +04:00
parent 802beabc9e
commit 7b2754fbbb
4 changed files with 115 additions and 110 deletions
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Telegram/SourceFiles/dialogs/dialogs_widget.cpp
+10 -31
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@@ -14,6 +14,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
#include "dialogs/ui/dialogs_stories_content.h"
#include "dialogs/ui/dialogs_stories_list.h"
#include "dialogs/ui/dialogs_suggestions.h"
#include "dialogs/ui/dialogs_top_bar_suggestion_content.h"
#include "dialogs/dialogs_inner_widget.h"
#include "dialogs/dialogs_search_from_controllers.h"
#include "dialogs/dialogs_top_bar_suggestion.h"
@@ -1132,38 +1133,16 @@ void Widget::setupTopBarSuggestions() {
}) | rpl::flatten_latest() | rpl::on_next([=](
Ui::SlideWrap<Ui::RpWidget> *raw) {
if (raw) {
_topBarSuggestionPlaceholder.reset(_innerList->insert(
0,
object_ptr<Ui::RpWidget>(_innerList)));
_topBarSuggestionPlaceholder->paintOn([
ph = _topBarSuggestionPlaceholder.get()
](QPainter &p) {
p.fillRect(ph->rect(), st::dialogsBg);
});
_topBarSuggestion.reset(raw);
_topBarSuggestion->setParent(_scroll);
_topBarSuggestion->raise();
_topBarSuggestion->heightValue(
) | rpl::on_next([=](int h) {
if (_topBarSuggestionPlaceholder) {
_topBarSuggestionPlaceholder->resize(
_topBarSuggestionPlaceholder->width(),
h);
}
_scroll->setBarTopInset(h);
_topBarSuggestionHeightChanged.fire_copy(h);
}, _topBarSuggestion->entity()->lifetime());
const auto pinToScroll = [=] {
if (_topBarSuggestion) {
_topBarSuggestion->resizeToWidth(_scroll->width());
_topBarSuggestion->moveToLeft(0, 0);
}
};
_scroll->sizeValue(
) | rpl::to_empty | rpl::on_next(
pinToScroll,
_topBarSuggestion->entity()->lifetime());
pinToScroll();
MountTopBarSuggestion({
.scroll = _scroll,
.innerList = _innerList,
.wrap = _topBarSuggestion.get(),
.placeholder = &_topBarSuggestionPlaceholder,
.heightChanged = [=](int h) {
_topBarSuggestionHeightChanged.fire_copy(h);
},
});
} else {
_topBarSuggestionPlaceholder = nullptr;
_topBarSuggestion = nullptr;