lib_ui/ui/layers/generic_box.cpp
2024-02-21 22:25:24 +04:00

131 lines
3.2 KiB
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/blob/master/LEGAL
//
#include "ui/layers/generic_box.h"
#include "ui/wrap/vertical_layout.h"
#include "ui/wrap/padding_wrap.h"
#include "ui/wrap/wrap.h"
#include "styles/style_layers.h"
namespace Ui {
void GenericBox::prepare() {
_init(this);
const auto currentWidth = width();
const auto pinnedToTop = _pinnedToTopContent.data();
const auto pinnedToBottom = _pinnedToBottomContent.data();
if (pinnedToTop) {
pinnedToTop->resizeToWidth(currentWidth);
}
if (pinnedToBottom) {
pinnedToBottom->resizeToWidth(currentWidth);
}
auto wrap = object_ptr<Ui::OverrideMargins>(this, std::move(_owned));
wrap->resizeToWidth(currentWidth);
rpl::combine(
pinnedToTop ? pinnedToTop->heightValue() : rpl::single(0),
wrap->heightValue(),
pinnedToBottom ? pinnedToBottom->heightValue() : rpl::single(0)
) | rpl::start_with_next([=](int top, int height, int bottom) {
Expects(_minHeight >= 0);
Expects(!_maxHeight || _minHeight <= _maxHeight);
setInnerTopSkip(top);
setInnerBottomSkip(bottom);
const auto desired = top + height + bottom;
setDimensions(
currentWidth,
std::clamp(
desired,
_minHeight,
_maxHeight ? _maxHeight : std::max(_minHeight, desired)),
true);
}, wrap->lifetime());
setInnerWidget(
std::move(wrap),
_scrollSt ? *_scrollSt : st::boxScroll,
pinnedToTop ? pinnedToTop->height() : 0,
pinnedToBottom ? pinnedToBottom->height() : 0);
if (pinnedToBottom) {
rpl::combine(
heightValue(),
pinnedToBottom->heightValue()
) | rpl::start_with_next([=](int outer, int height) {
pinnedToBottom->move(0, outer - height);
}, pinnedToBottom->lifetime());
}
if (const auto onstack = _initScroll) {
onstack();
}
}
void GenericBox::addSkip(int height) {
addRow(object_ptr<Ui::FixedHeightWidget>(this, height));
}
void GenericBox::setInnerFocus() {
if (_focus) {
_focus();
} else {
BoxContent::setInnerFocus();
}
}
void GenericBox::showFinished() {
const auto guard = QPointer(this);
if (const auto onstack = _showFinished) {
onstack();
if (!guard) {
return;
}
}
_showFinishes.fire({});
}
not_null<Ui::RpWidget*> GenericBox::doSetPinnedToTopContent(
object_ptr<Ui::RpWidget> content) {
_pinnedToTopContent = std::move(content);
return _pinnedToTopContent.data();
}
not_null<Ui::RpWidget*> GenericBox::doSetPinnedToBottomContent(
object_ptr<Ui::RpWidget> content) {
_pinnedToBottomContent = std::move(content);
return _pinnedToBottomContent.data();
}
int GenericBox::rowsCount() const {
return _content->count();
}
int GenericBox::width() const {
return _width ? _width : st::boxWidth;
}
not_null<Ui::VerticalLayout*> GenericBox::verticalLayout() {
return _content;
}
rpl::producer<> BoxShowFinishes(not_null<GenericBox*> box) {
const auto singleShot = box->lifetime().make_state<rpl::lifetime>();
const auto showFinishes = singleShot->make_state<rpl::event_stream<>>();
box->setShowFinishedCallback([=] {
showFinishes->fire({});
singleShot->destroy();
box->setShowFinishedCallback(nullptr);
});
return showFinishes->events();
}
} // namespace Ui