Don't stop GIFs when TabbedSection is opened.

Also improve the appearance of Stickers and GIFs tabs with no items.

Telegram/Resources/langs/lang.strings

@@ -781,8 +781,9 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 "lng_switch_gifs" = "GIFs";
 "lng_stickers_featured_add" = "Add";
 "lng_gifs_search" = "Search GIFs";
+"lng_gifs_no_saved" = "You have no saved GIFs yet.";
 
-"lng_inline_bot_no_results" = "No results";
+"lng_inline_bot_no_results" = "No results.";
 "lng_inline_bot_via" = "via {inline_bot}";
 
 "lng_box_remove" = "Remove";

Telegram/SourceFiles/boxes/stickers_box.cpp

@@ -301,6 +301,10 @@ void StickersBox::refreshTabs() {
 	if ((_tab == &_archived && !_tabIndices.contains(Section::Archived))
 		|| (_tab == &_featured && !_tabIndices.contains(Section::Featured))) {
 		switchTab();
+	} else if (_tab == &_archived) {
+		_tabs->setActiveSectionFast(_tabIndices.indexOf(Section::Archived));
+	} else if (_tab == &_featured) {
+		_tabs->setActiveSectionFast(_tabIndices.indexOf(Section::Featured));
 	}
 	updateTabsGeometry();
 }
@@ -410,6 +414,7 @@ void StickersBox::switchTab() {
 	_tab->widget()->show();
 	rebuildList();
 	onScrollToY(_tab->getScrollTop());
+	setInnerVisible(true);
 	auto nowCache = grabContentCache();
 	auto nowIndex = _tab->index();
 

Telegram/SourceFiles/chat_helpers/gifs_list_widget.cpp

@@ -254,7 +254,8 @@ void GifsListWidget::paintInlineItems(Painter &p, QRect clip) {
 	if (_rows.isEmpty()) {
 		p.setFont(st::normalFont);
 		p.setPen(st::noContactsColor);
-		p.drawText(QRect(0, 0, width(), (height() / 3) * 2 + st::normalFont->height), lang(lng_inline_bot_no_results), style::al_center);
+		auto text = lang(_inlineQuery.isEmpty() ? lng_gifs_no_saved : lng_inline_bot_no_results);
+		p.drawText(QRect(0, 0, width(), (height() / 3) * 2 + st::normalFont->height), text, style::al_center);
 		return;
 	}
 	auto gifPaused = controller()->isGifPausedAtLeastFor(Window::GifPauseReason::SavedGifs);
@@ -392,7 +393,6 @@ TabbedSelector::InnerFooter *GifsListWidget::getFooter() const {
 
 void GifsListWidget::processHideFinished() {
 	clearSelection();
-	controller()->disableGifPauseReason(Window::GifPauseReason::SavedGifs);
 }
 
 void GifsListWidget::processPanelHideFinished() {
@@ -753,7 +753,6 @@ void GifsListWidget::afterShown() {
 	if (_footer) {
 		_footer->stealFocus();
 	}
-	controller()->enableGifPauseReason(Window::GifPauseReason::SavedGifs);
 }
 
 void GifsListWidget::beforeHiding() {

Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp

@@ -61,6 +61,7 @@ public:
 	void preloadImages();
 	void validateSelectedIcon(uint64 setId, ValidateIconAnimations animations);
 	void refreshIcons(ValidateIconAnimations animations);
+	bool hasOnlyFeaturedSets() const;
 
 	void leaveToChildEvent(QEvent *e, QWidget *child) override;
 
@@ -184,12 +185,15 @@ void StickersListWidget::Footer::leaveToChildEvent(QEvent *e, QWidget *child) {
 
 void StickersListWidget::Footer::paintEvent(QPaintEvent *e) {
 	Painter p(this);
-	paintStickerSettingsIcon(p);
 
 	if (_icons.isEmpty()) {
 		return;
 	}
 
+	if (!hasOnlyFeaturedSets()) {
+		paintStickerSettingsIcon(p);
+	}
+
 	auto selxrel = _iconsLeft + qRound(_iconSelX.current());
 	auto selx = selxrel - qRound(_iconsX.current());
 
@@ -242,7 +246,7 @@ void StickersListWidget::Footer::mousePressEvent(QMouseEvent *e) {
 	updateSelected();
 
 	if (_iconOver == _icons.size()) {
-		Ui::show(Box<StickersBox>(StickersBox::Section::Installed));
+		Ui::show(Box<StickersBox>(hasOnlyFeaturedSets() ? StickersBox::Section::Featured : StickersBox::Section::Installed));
 	} else {
 		_iconDown = _iconOver;
 		_iconsMouseDown = _iconsMousePos;
@@ -336,7 +340,9 @@ void StickersListWidget::Footer::updateSelected() {
 	if (rtl()) x = width() - x;
 	x -= _iconsLeft;
 	if (x >= st::emojiCategory.width * (kVisibleIconsCount - 1) && x < st::emojiCategory.width * kVisibleIconsCount && y >= _iconsTop && y < _iconsTop + st::emojiCategory.height) {
-		newOver = _icons.size();
+		if (!_icons.isEmpty() && !hasOnlyFeaturedSets()) {
+			newOver = _icons.size();
+		}
 	} else if (!_icons.isEmpty()) {
 		if (y >= _iconsTop && y < _iconsTop + st::emojiCategory.height && x >= 0 && x < (kVisibleIconsCount - 1) * st::emojiCategory.width && x < _icons.size() * st::emojiCategory.width) {
 			x += qRound(_iconsX.current());
@@ -373,6 +379,10 @@ void StickersListWidget::Footer::refreshIcons(ValidateIconAnimations animations)
 	update();
 }
 
+bool StickersListWidget::Footer::hasOnlyFeaturedSets() const {
+	return (_icons.size() == 1) && (_icons[0].setId == Stickers::FeaturedSetId);
+}
+
 void StickersListWidget::Footer::paintStickerSettingsIcon(Painter &p) const {
 	int settingsLeft = _iconsLeft + (kVisibleIconsCount - 1) * st::emojiCategory.width;
 	st::stickersSettings.paint(p, settingsLeft + st::emojiCategory.iconPosition.x(), _iconsTop + st::emojiCategory.iconPosition.y(), width());
@@ -1029,12 +1039,15 @@ void StickersListWidget::refreshStickers() {
 		resize(width(), newHeight);
 	}
 
-	_settings->setVisible(_section == Section::Stickers && _mySets.isEmpty());
-
 	if (_footer) {
 		_footer->refreshIcons(ValidateIconAnimations::None);
+		if (_footer->hasOnlyFeaturedSets() && _section != Section::Featured) {
+			showStickerSet(Stickers::FeaturedSetId);
+		}
 	}
 
+	_settings->setVisible(_section == Section::Stickers && _mySets.isEmpty());
+
 	_lastMousePosition = QCursor::pos();
 	updateSelected();
 	update();

Telegram/SourceFiles/chat_helpers/tabbed_panel.cpp

@@ -23,6 +23,7 @@ Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
 #include "ui/widgets/shadow.h"
 #include "styles/style_chat_helpers.h"
 #include "chat_helpers/tabbed_selector.h"
+#include "window/window_controller.h"
 #include "mainwindow.h"
 
 namespace ChatHelpers {
@@ -37,9 +38,20 @@ TabbedPanel::TabbedPanel(QWidget *parent, gsl::not_null<Window::Controller*> con
 }
 
 TabbedPanel::TabbedPanel(QWidget *parent, gsl::not_null<Window::Controller*> controller, object_ptr<TabbedSelector> selector) : TWidget(parent)
+, _controller(controller)
 , _selector(std::move(selector)) {
 	_selector->setParent(this);
 	_selector->setRoundRadius(st::buttonRadius);
+	_selector->setAfterShownCallback([this](EmojiPanelTab tab) {
+		if (tab == EmojiPanelTab::Gifs) {
+			_controller->enableGifPauseReason(Window::GifPauseReason::SavedGifs);
+		}
+	});
+	_selector->setBeforeHidingCallback([this](EmojiPanelTab tab) {
+		if (tab == EmojiPanelTab::Gifs) {
+			_controller->disableGifPauseReason(Window::GifPauseReason::SavedGifs);
+		}
+	});
 
 	resize(QRect(0, 0, st::emojiPanWidth, st::emojiPanMaxHeight).marginsAdded(innerPadding()).size());
 
@@ -307,9 +319,10 @@ void TabbedPanel::toggleAnimated() {
 }
 
 object_ptr<TabbedSelector> TabbedPanel::takeSelector() {
-	auto result = std::move(_selector);
-	hideAnimated();
-	return result;
+	if (!isHidden() && !_hiding) {
+		startOpacityAnimation(true);
+	}
+	return std::move(_selector);
 }
 
 QPointer<TabbedSelector> TabbedPanel::getSelector() const {

Telegram/SourceFiles/chat_helpers/tabbed_panel.h

@@ -106,6 +106,7 @@ private:
 	bool preventAutoHide() const;
 	void updateContentHeight();
 
+	gsl::not_null<Window::Controller*> _controller;
 	object_ptr<TabbedSelector> _selector;
 
 	int _contentMaxHeight = 0;

Telegram/SourceFiles/chat_helpers/tabbed_section.cpp

@@ -42,6 +42,8 @@ TabbedSection::TabbedSection(QWidget *parent, gsl::not_null<Window::Controller*>
 			_cancelledCallback();
 		}
 	});
+	_selector->setAfterShownCallback(base::lambda<void(EmojiPanelTab)>());
+	_selector->setBeforeHidingCallback(base::lambda<void(EmojiPanelTab)>());
 
 	setAttribute(Qt::WA_OpaquePaintEvent, true);
 }
@@ -59,6 +61,7 @@ void TabbedSection::resizeEvent(QResizeEvent *e) {
 }
 
 object_ptr<TabbedSelector> TabbedSection::takeSelector() {
+	_selector->beforeHiding();
 	return std::move(_selector);
 }
 

Telegram/SourceFiles/chat_helpers/tabbed_selector.cpp

@@ -377,8 +377,7 @@ void TabbedSelector::paintEvent(QPaintEvent *e) {
 		paintSlideFrame(p, ms);
 		if (!_a_slide.animating()) {
 			_slideAnimation.reset();
-			showAll();
-			currentTab()->widget()->afterShown();
+			afterShown();
 			emit slideFinished();
 		}
 	} else {
@@ -482,6 +481,9 @@ void TabbedSelector::showStarted() {
 void TabbedSelector::beforeHiding() {
 	if (!_scroll->isHidden()) {
 		currentTab()->widget()->beforeHiding();
+		if (_beforeHidingCallback) {
+			_beforeHidingCallback(_currentTabType);
+		}
 	}
 }
 
@@ -489,6 +491,9 @@ void TabbedSelector::afterShown() {
 	if (!_a_slide.animating()) {
 		showAll();
 		currentTab()->widget()->afterShown();
+		if (_afterShownCallback) {
+			_afterShownCallback(_currentTabType);
+		}
 	}
 }
 
@@ -555,9 +560,7 @@ void TabbedSelector::switchTab() {
 	auto wasTab = _currentTabType;
 	currentTab()->saveScrollTop();
 
-	if (!_scroll->isHidden()) {
-		currentTab()->widget()->beforeHiding();
-	}
+	beforeHiding();
 
 	auto wasCache = grabForAnimation();
 

Telegram/SourceFiles/chat_helpers/tabbed_selector.h

@@ -66,6 +66,14 @@ public:
 		return _a_slide.animating();
 	}
 
+	using TabType = EmojiPanelTab;
+	void setAfterShownCallback(base::lambda<void(TabType)> callback) {
+		_afterShownCallback = std::move(callback);
+	}
+	void setBeforeHidingCallback(base::lambda<void(TabType)> callback) {
+		_beforeHidingCallback = std::move(callback);
+	}
+
 	~TabbedSelector();
 
 	class Inner;
@@ -91,7 +99,6 @@ signals:
 	void checkForHide();
 
 private:
-	using TabType = EmojiPanelTab;
 	class Tab {
 	public:
 		static constexpr auto kCount = 3;
@@ -173,6 +180,9 @@ private:
 	std::array<Tab, Tab::kCount> _tabs;
 	TabType _currentTabType = TabType::Emoji;
 
+	base::lambda<void(TabType)> _afterShownCallback;
+	base::lambda<void(TabType)> _beforeHidingCallback;
+
 };
 
 class TabbedSelector::Inner : public TWidget {