mirror of
https://github.com/AyuGram/AyuGramDesktop.git
synced 2025-05-02 14:04:01 +02:00
330 lines
8.8 KiB
C++
330 lines
8.8 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/ui/dialogs_layout.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/image/image.h"
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#include "ui/painter.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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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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, _topicCache(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(not_null<const HistoryItem*> item) const {
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return (_textCachedFor == item.get());
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}
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void MessageView::prepare(
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not_null<const HistoryItem*> item,
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Fn<void()> customEmojiRepaint,
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ToPreviewOptions options) {
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options.existing = &_imagesCache;
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auto preview = item->toPreview(options);
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const auto hasImages = !preview.images.empty();
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const auto hasArrow = (preview.arrowInTextPosition > 0)
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&& (preview.imagesInTextPosition > preview.arrowInTextPosition);
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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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};
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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 || hasArrow) && 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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const auto topicTill = preview.imagesInTextPosition;
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if (hasArrow && hasImages) {
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auto topic = Text::Mid(
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preview.text,
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senderTill,
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topicTill - senderTill);
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TextUtilities::Trim(topic);
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_topicCache.setMarkedText(
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st::dialogsTextStyle,
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std::move(topic),
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DialogTextOptions(),
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context);
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preview.text = Text::Mid(preview.text, topicTill);
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} else {
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preview.text = Text::Mid(preview.text, senderTill);
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_topicCache = { st::dialogsTextWidthMin };
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}
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} else {
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_topicCache = { st::dialogsTextWidthMin };
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_senderCache = { st::dialogsTextWidthMin };
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}
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TextUtilities::Trim(preview.text);
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_textCache.setMarkedText(
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st::dialogsTextStyle,
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DialogsPreviewText(std::move(preview.text)),
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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 (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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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 palette = &(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 lines = rect.height() / st::dialogsTextFont->height;
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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 (!_topicCache.isEmpty() || _imagesCache.empty()) {
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const auto skip = st::dialogsTopicArrowSkip;
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if (rect.width() >= skip) {
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const auto &icon = st::dialogsTopicArrow;
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icon.paint(
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p,
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rect.x() + (skip - icon.width()) / 2,
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rect.y() + st::dialogsTopicArrowTop,
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geometry.width());
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}
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rect.setLeft(rect.x() + skip);
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}
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if (!_topicCache.isEmpty()) {
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if (!rect.isEmpty()) {
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_topicCache.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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.paused = context.paused,
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.elisionLines = lines,
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});
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}
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rect.setLeft(rect.x() + _topicCache.maxWidth());
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}
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if (!_imagesCache.empty()) {
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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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for (const auto &image : _imagesCache) {
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if (rect.width() < st::dialogsMiniPreview) {
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break;
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}
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p.drawImage(
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rect.x(),
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rect.y() + st::dialogsMiniPreviewTop,
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image.data);
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rect.setLeft(rect.x()
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+ st::dialogsMiniPreview
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+ st::dialogsMiniPreviewSkip);
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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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if (rect.isEmpty()) {
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return;
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}
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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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.paused = context.paused,
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.elisionLines = lines,
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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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