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