479 lines
13 KiB
C++
479 lines
13 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "dialogs/ui/dialogs_message_view.h"
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#include "history/history.h"
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#include "history/history_item.h"
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#include "history/view/history_view_item_preview.h"
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#include "main/main_session.h"
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#include "dialogs/dialogs_three_state_icon.h"
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#include "dialogs/ui/dialogs_layout.h"
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#include "dialogs/ui/dialogs_topics_view.h"
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#include "ui/effects/spoiler_mess.h"
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#include "ui/text/text_options.h"
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#include "ui/text/text_utilities.h"
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#include "ui/painter.h"
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#include "ui/power_saving.h"
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#include "core/ui_integration.h"
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#include "lang/lang_keys.h"
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#include "lang/lang_text_entity.h"
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#include "styles/style_dialogs.h"
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namespace {
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constexpr auto kEmojiLoopCount = 2;
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template <ushort kTag>
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struct TextWithTagOffset {
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TextWithTagOffset(TextWithEntities text) : text(std::move(text)) {
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}
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TextWithTagOffset(QString text) : text({ std::move(text) }) {
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}
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static TextWithTagOffset FromString(const QString &text) {
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return { { text } };
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}
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TextWithEntities text;
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int offset = -1;
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};
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} // namespace
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namespace Lang {
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template <ushort kTag>
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struct ReplaceTag<TextWithTagOffset<kTag>> {
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static TextWithTagOffset<kTag> Call(
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TextWithTagOffset<kTag> &&original,
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ushort tag,
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const TextWithTagOffset<kTag> &replacement);
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};
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template <ushort kTag>
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TextWithTagOffset<kTag> ReplaceTag<TextWithTagOffset<kTag>>::Call(
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TextWithTagOffset<kTag> &&original,
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ushort tag,
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const TextWithTagOffset<kTag> &replacement) {
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const auto replacementPosition = FindTagReplacementPosition(
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original.text.text,
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tag);
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if (replacementPosition < 0) {
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return std::move(original);
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}
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original.text = ReplaceTag<TextWithEntities>::Replace(
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std::move(original.text),
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replacement.text,
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replacementPosition);
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if (tag == kTag) {
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original.offset = replacementPosition;
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} else if (original.offset > replacementPosition) {
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constexpr auto kReplaceCommandLength = 4;
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const auto replacementSize = replacement.text.text.size();
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original.offset += replacementSize - kReplaceCommandLength;
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}
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return std::move(original);
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}
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} // namespace Lang
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namespace Dialogs::Ui {
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TextWithEntities DialogsPreviewText(TextWithEntities text) {
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auto result = Ui::Text::Filtered(
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std::move(text),
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{
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EntityType::Pre,
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EntityType::Code,
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EntityType::Spoiler,
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EntityType::StrikeOut,
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EntityType::Underline,
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EntityType::Italic,
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EntityType::CustomEmoji,
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EntityType::PlainLink,
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});
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for (auto &entity : result.entities) {
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if (entity.type() == EntityType::Pre) {
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entity = EntityInText(
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EntityType::Code,
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entity.offset(),
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entity.length());
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}
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}
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return result;
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}
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struct MessageView::LoadingContext {
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std::any context;
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rpl::lifetime lifetime;
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};
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MessageView::MessageView()
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: _senderCache(st::dialogsTextWidthMin)
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, _textCache(st::dialogsTextWidthMin) {
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}
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MessageView::~MessageView() = default;
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void MessageView::itemInvalidated(not_null<const HistoryItem*> item) {
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if (_textCachedFor == item.get()) {
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_textCachedFor = nullptr;
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}
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}
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bool MessageView::dependsOn(not_null<const HistoryItem*> item) const {
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return (_textCachedFor == item.get());
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}
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bool MessageView::prepared(
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not_null<const HistoryItem*> item,
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Data::Forum *forum) const {
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return (_textCachedFor == item.get())
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&& (!forum
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|| (_topics
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&& _topics->forum() == forum
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&& _topics->prepared()));
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}
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void MessageView::prepare(
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not_null<const HistoryItem*> item,
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Data::Forum *forum,
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Fn<void()> customEmojiRepaint,
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ToPreviewOptions options) {
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if (!forum) {
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_topics = nullptr;
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} else if (!_topics || _topics->forum() != forum) {
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_topics = std::make_unique<TopicsView>(forum);
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_topics->prepare(item->topicRootId(), customEmojiRepaint);
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} else if (!_topics->prepared()) {
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_topics->prepare(item->topicRootId(), customEmojiRepaint);
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}
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if (_textCachedFor == item.get()) {
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return;
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}
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options.existing = &_imagesCache;
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options.ignoreTopic = true;
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options.spoilerLoginCode = true;
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auto preview = item->toPreview(options);
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_leftIcon = (preview.icon == ItemPreview::Icon::ForwardedMessage)
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? &st::dialogsMiniForward
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: (preview.icon == ItemPreview::Icon::ReplyToStory)
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? &st::dialogsMiniReplyStory
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: nullptr;
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const auto hasImages = !preview.images.empty();
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const auto history = item->history();
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const auto context = Core::MarkedTextContext{
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.session = &history->session(),
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.customEmojiRepaint = customEmojiRepaint,
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.customEmojiLoopLimit = kEmojiLoopCount,
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};
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const auto senderTill = (preview.arrowInTextPosition > 0)
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? preview.arrowInTextPosition
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: preview.imagesInTextPosition;
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if ((hasImages || _leftIcon) && senderTill > 0) {
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auto sender = Text::Mid(preview.text, 0, senderTill);
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TextUtilities::Trim(sender);
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_senderCache.setMarkedText(
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st::dialogsTextStyle,
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std::move(sender),
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DialogTextOptions());
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preview.text = Text::Mid(preview.text, senderTill);
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} else {
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_senderCache = { st::dialogsTextWidthMin };
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}
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TextUtilities::Trim(preview.text);
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auto textToCache = DialogsPreviewText(std::move(preview.text));
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_hasPlainLinkAtBegin = !textToCache.entities.empty()
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&& (textToCache.entities.front().type() == EntityType::PlainLink);
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_textCache.setMarkedText(
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st::dialogsTextStyle,
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std::move(textToCache),
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DialogTextOptions(),
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context);
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_textCachedFor = item;
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_imagesCache = std::move(preview.images);
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if (!ranges::any_of(_imagesCache, &ItemPreviewImage::hasSpoiler)) {
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_spoiler = nullptr;
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} else if (!_spoiler) {
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_spoiler = std::make_unique<SpoilerAnimation>(customEmojiRepaint);
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}
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if (preview.loadingContext.has_value()) {
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if (!_loadingContext) {
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_loadingContext = std::make_unique<LoadingContext>();
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item->history()->session().downloaderTaskFinished(
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) | rpl::start_with_next([=] {
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_textCachedFor = nullptr;
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}, _loadingContext->lifetime);
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}
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_loadingContext->context = std::move(preview.loadingContext);
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} else {
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_loadingContext = nullptr;
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}
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}
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bool MessageView::isInTopicJump(int x, int y) const {
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return _topics && _topics->isInTopicJumpArea(x, y);
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}
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void MessageView::addTopicJumpRipple(
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QPoint origin,
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not_null<TopicJumpCache*> topicJumpCache,
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Fn<void()> updateCallback) {
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if (_topics) {
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_topics->addTopicJumpRipple(
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origin,
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topicJumpCache,
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std::move(updateCallback));
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}
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}
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void MessageView::stopLastRipple() {
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if (_topics) {
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_topics->stopLastRipple();
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}
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}
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void MessageView::clearRipple() {
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if (_topics) {
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_topics->clearRipple();
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}
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}
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int MessageView::countWidth() const {
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auto result = 0;
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if (!_senderCache.isEmpty()) {
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result += _senderCache.maxWidth();
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if (!_imagesCache.empty()) {
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result += st::dialogsMiniPreviewSkip
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+ st::dialogsMiniPreviewRight;
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}
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}
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if (!_imagesCache.empty()) {
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result += (_imagesCache.size()
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* (st::dialogsMiniPreview + st::dialogsMiniPreviewSkip))
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+ st::dialogsMiniPreviewRight;
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}
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return result + _textCache.maxWidth();
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}
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void MessageView::paint(
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Painter &p,
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const QRect &geometry,
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const PaintContext &context) const {
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if (geometry.isEmpty()) {
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return;
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}
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p.setFont(st::dialogsTextFont);
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p.setPen(context.active
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? st::dialogsTextFgActive
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: context.selected
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? st::dialogsTextFgOver
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: st::dialogsTextFg);
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const auto withTopic = _topics && context.st->topicsHeight;
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const auto palette = &(withTopic
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? (context.active
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? st::dialogsTextPaletteInTopicActive
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: context.selected
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? st::dialogsTextPaletteInTopicOver
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: st::dialogsTextPaletteInTopic)
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: (context.active
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? st::dialogsTextPaletteActive
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: context.selected
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? st::dialogsTextPaletteOver
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: st::dialogsTextPalette));
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auto rect = geometry;
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const auto checkJump = withTopic && !context.active;
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const auto jump1 = checkJump ? _topics->jumpToTopicWidth() : 0;
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if (jump1) {
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paintJumpToLast(p, rect, context, jump1);
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} else if (_topics) {
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_topics->clearTopicJumpGeometry();
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}
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if (withTopic) {
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_topics->paint(p, rect, context);
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rect.setTop(rect.top() + context.st->topicsHeight);
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}
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auto finalRight = rect.x() + rect.width();
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if (jump1) {
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rect.setWidth(rect.width() - st::forumDialogJumpArrowSkip);
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finalRight -= st::forumDialogJumpArrowSkip;
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}
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const auto lines = rect.height() / st::dialogsTextFont->height;
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const auto pausedSpoiler = context.paused
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|| On(PowerSaving::kChatSpoiler);
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if (!_senderCache.isEmpty()) {
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_senderCache.draw(p, {
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.position = rect.topLeft(),
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.availableWidth = rect.width(),
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.palette = palette,
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.elisionLines = lines,
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});
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rect.setLeft(rect.x() + _senderCache.maxWidth());
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if (!_imagesCache.empty() && !_leftIcon) {
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const auto skip = st::dialogsMiniPreviewSkip
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+ st::dialogsMiniPreviewRight;
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rect.setLeft(rect.x() + skip);
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}
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}
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if (_leftIcon) {
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const auto &icon = ThreeStateIcon(
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_leftIcon->icon,
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context.active,
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context.selected);
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const auto w = (icon.width());
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if (rect.width() > w) {
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if (_hasPlainLinkAtBegin && !context.active) {
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icon.paint(
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p,
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rect.topLeft(),
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rect.width(),
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palette->linkFg->c);
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} else {
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icon.paint(p, rect.topLeft(), rect.width());
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}
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rect.setLeft(rect.x()
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+ w
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+ (_imagesCache.empty()
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? _leftIcon->skipText
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: _leftIcon->skipMedia));
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}
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}
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for (const auto &image : _imagesCache) {
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const auto w = st::dialogsMiniPreview + st::dialogsMiniPreviewSkip;
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if (rect.width() < w) {
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break;
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}
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const auto mini = QRect(
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rect.x(),
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rect.y() + st::dialogsMiniPreviewTop,
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st::dialogsMiniPreview,
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st::dialogsMiniPreview);
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if (!image.data.isNull()) {
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p.drawImage(mini, image.data);
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if (image.hasSpoiler()) {
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const auto frame = DefaultImageSpoiler().frame(
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_spoiler->index(context.now, pausedSpoiler));
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FillSpoilerRect(p, mini, frame);
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}
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}
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rect.setLeft(rect.x() + w);
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}
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if (!_imagesCache.empty()) {
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rect.setLeft(rect.x() + st::dialogsMiniPreviewRight);
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}
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// Style of _textCache.
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static const auto ellipsisWidth = st::dialogsTextStyle.font->width(
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kQEllipsis);
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if (rect.width() > ellipsisWidth) {
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_textCache.draw(p, {
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.position = rect.topLeft(),
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.availableWidth = rect.width(),
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.palette = palette,
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.spoiler = Text::DefaultSpoilerCache(),
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.now = context.now,
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.pausedEmoji = context.paused || On(PowerSaving::kEmojiChat),
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.pausedSpoiler = pausedSpoiler,
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.elisionLines = lines,
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});
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rect.setLeft(rect.x() + _textCache.maxWidth());
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}
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if (jump1) {
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const auto position = st::forumDialogJumpArrowPosition
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+ QPoint((rect.width() > 0) ? rect.x() : finalRight, rect.y());
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(context.selected
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? st::forumDialogJumpArrowOver
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: st::forumDialogJumpArrow).paint(p, position, context.width);
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}
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}
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void MessageView::paintJumpToLast(
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Painter &p,
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const QRect &rect,
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const PaintContext &context,
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int width1) const {
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if (!context.topicJumpCache) {
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_topics->clearTopicJumpGeometry();
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return;
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}
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const auto width2 = countWidth() + st::forumDialogJumpArrowSkip;
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const auto geometry = FillJumpToLastBg(p, {
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.st = context.st,
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.corners = (context.selected
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? &context.topicJumpCache->over
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: &context.topicJumpCache->corners),
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.geometry = rect,
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.bg = (context.selected
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? st::dialogsRippleBg
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: st::dialogsBgOver),
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.width1 = width1,
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.width2 = width2,
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});
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if (context.topicJumpSelected) {
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p.setOpacity(0.1);
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FillJumpToLastPrepared(p, {
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.st = context.st,
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.corners = &context.topicJumpCache->selected,
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.bg = st::dialogsTextFg,
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.prepared = geometry,
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});
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p.setOpacity(1.);
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}
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if (!_topics->changeTopicJumpGeometry(geometry)) {
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auto color = st::dialogsTextFg->c;
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color.setAlpha(color.alpha() / 10);
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if (color.alpha() > 0) {
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_topics->paintRipple(p, 0, 0, context.width, &color);
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}
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}
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}
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HistoryView::ItemPreview PreviewWithSender(
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HistoryView::ItemPreview &&preview,
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const QString &sender,
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TextWithEntities topic) {
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auto senderWithOffset = topic.empty()
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? TextWithTagOffset<lt_from>::FromString(sender)
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: tr::lng_dialogs_text_from_in_topic(
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tr::now,
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lt_from,
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{ sender },
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lt_topic,
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std::move(topic),
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TextWithTagOffset<lt_from>::FromString);
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auto wrappedWithOffset = tr::lng_dialogs_text_from_wrapped(
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tr::now,
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lt_from,
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std::move(senderWithOffset.text),
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TextWithTagOffset<lt_from>::FromString);
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const auto wrappedSize = wrappedWithOffset.text.text.size();
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auto fullWithOffset = tr::lng_dialogs_text_with_from(
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tr::now,
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lt_from_part,
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Ui::Text::PlainLink(std::move(wrappedWithOffset.text)),
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lt_message,
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std::move(preview.text),
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TextWithTagOffset<lt_from_part>::FromString);
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preview.text = std::move(fullWithOffset.text);
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preview.arrowInTextPosition = (fullWithOffset.offset < 0
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|| wrappedWithOffset.offset < 0
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|| senderWithOffset.offset < 0)
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? -1
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: (fullWithOffset.offset
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+ wrappedWithOffset.offset
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+ senderWithOffset.offset
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+ sender.size());
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preview.imagesInTextPosition = (fullWithOffset.offset < 0)
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? 0
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: (fullWithOffset.offset + wrappedSize);
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return std::move(preview);
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}
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} // namespace Dialogs::Ui
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