286 lines
7.6 KiB
C++
286 lines
7.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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struct HistoryMessageEdited;
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namespace base {
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template <typename Enum>
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class enum_mask;
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} // namespace base
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namespace Storage {
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enum class SharedMediaType : char;
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using SharedMediaTypesMask = base::enum_mask<SharedMediaType>;
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} // namespace Storage
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enum class MediaInBubbleState {
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None,
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Top,
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Middle,
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Bottom,
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};
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class HistoryMedia : public HistoryElement {
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public:
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HistoryMedia(not_null<HistoryItem*> parent) : _parent(parent) {
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}
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virtual HistoryMediaType type() const = 0;
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virtual QString notificationText() const {
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return QString();
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}
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// Returns text with link-start and link-end commands for service-color highlighting.
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// Example: "[link1-start]You:[link1-end] [link1-start]Photo,[link1-end] caption text"
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virtual QString inDialogsText() const {
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auto result = notificationText();
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return result.isEmpty() ? QString() : textcmdLink(1, TextUtilities::Clean(result));
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}
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virtual TextWithEntities selectedText(TextSelection selection) const = 0;
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bool hasPoint(QPoint point) const {
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return QRect(0, 0, _width, _height).contains(point);
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}
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virtual bool isDisplayed() const {
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return !_parent->isHiddenByGroup();
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}
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virtual void updateNeedBubbleState() {
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}
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virtual bool isAboveMessage() const {
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return false;
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}
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virtual bool hasTextForCopy() const {
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return false;
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}
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virtual bool allowsFastShare() const {
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return false;
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}
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virtual void initDimensions() = 0;
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virtual void refreshParentId(not_null<HistoryItem*> realParent) {
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}
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virtual int resizeGetHeight(int width) {
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_width = qMin(width, _maxw);
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return _height;
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}
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virtual void draw(Painter &p, const QRect &r, TextSelection selection, TimeMs ms) const = 0;
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virtual HistoryTextState getState(QPoint point, HistoryStateRequest request) const = 0;
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virtual void updatePressed(QPoint point) {
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}
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virtual Storage::SharedMediaTypesMask sharedMediaTypes() const;
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// if we are in selecting items mode perhaps we want to
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// toggle selection instead of activating the pressed link
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virtual bool toggleSelectionByHandlerClick(
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const ClickHandlerPtr &p) const = 0;
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// if we press and drag on this media should we drag the item
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[[nodiscard]] virtual bool dragItem() const {
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return false;
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}
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[[nodiscard]] virtual TextSelection adjustSelection(
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TextSelection selection,
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TextSelectType type) const {
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return selection;
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}
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[[nodiscard]] virtual bool consumeMessageText(
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const TextWithEntities &textWithEntities) {
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return false;
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}
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[[nodiscard]] virtual uint16 fullSelectionLength() const {
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return 0;
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}
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[[nodiscard]] TextSelection skipSelection(
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TextSelection selection) const {
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return internal::unshiftSelection(
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selection,
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fullSelectionLength());
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}
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[[nodiscard]] TextSelection unskipSelection(
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TextSelection selection) const {
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return internal::shiftSelection(
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selection,
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fullSelectionLength());
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}
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// if we press and drag this link should we drag the item
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virtual bool dragItemByHandler(const ClickHandlerPtr &p) const = 0;
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virtual void clickHandlerActiveChanged(const ClickHandlerPtr &p, bool active) {
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}
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virtual void clickHandlerPressedChanged(const ClickHandlerPtr &p, bool pressed) {
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}
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virtual bool uploading() const {
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return false;
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}
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virtual std::unique_ptr<HistoryMedia> clone(
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not_null<HistoryItem*> newParent,
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not_null<HistoryItem*> realParent) const = 0;
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virtual PhotoData *getPhoto() const {
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return nullptr;
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}
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virtual DocumentData *getDocument() const {
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return nullptr;
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}
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virtual Media::Clip::Reader *getClipReader() {
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return nullptr;
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}
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bool playInline(/*bool autoplay = false*/) {
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return playInline(false);
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}
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virtual bool playInline(bool autoplay) {
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return false;
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}
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virtual void stopInline() {
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}
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virtual bool isRoundVideoPlaying() const {
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return false;
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}
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virtual void attachToParent() {
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}
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virtual void detachFromParent() {
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}
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virtual bool canBeGrouped() const {
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return false;
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}
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virtual QSize sizeForGrouping() const {
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Unexpected("Grouping method call.");
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}
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virtual void drawGrouped(
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Painter &p,
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const QRect &clip,
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TextSelection selection,
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TimeMs ms,
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const QRect &geometry,
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RectParts corners,
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not_null<uint64*> cacheKey,
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not_null<QPixmap*> cache) const {
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Unexpected("Grouping method call.");
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}
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virtual HistoryTextState getStateGrouped(
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const QRect &geometry,
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QPoint point,
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HistoryStateRequest request) const {
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Unexpected("Grouping method call.");
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}
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virtual std::unique_ptr<HistoryMedia> takeLastFromGroup() {
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return nullptr;
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}
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virtual bool applyGroup(
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const std::vector<not_null<HistoryItem*>> &others) {
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return others.empty();
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}
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virtual void updateSentMedia(const MTPMessageMedia &media) {
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}
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// After sending an inline result we may want to completely recreate
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// the media (all media that was generated on client side, for example)
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virtual bool needReSetInlineResultMedia(const MTPMessageMedia &media) {
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return true;
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}
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virtual bool animating() const {
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return false;
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}
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virtual bool hasReplyPreview() const {
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return false;
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}
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virtual ImagePtr replyPreview() {
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return ImagePtr();
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}
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virtual TextWithEntities getCaption() const {
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return TextWithEntities();
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}
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virtual bool needsBubble() const = 0;
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virtual bool customInfoLayout() const = 0;
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virtual QMargins bubbleMargins() const {
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return QMargins();
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}
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virtual bool hideForwardedFrom() const {
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return false;
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}
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virtual bool overrideEditedDate() const {
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return false;
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}
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virtual HistoryMessageEdited *displayedEditBadge() const {
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Unexpected("displayedEditBadge() on non-grouped media.");
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}
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// An attach media in a web page can provide an
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// additional text to be displayed below the attach.
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// For example duration / progress for video messages.
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virtual QString additionalInfoString() const {
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return QString();
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}
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int currentWidth() const {
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return _width;
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}
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void setInBubbleState(MediaInBubbleState state) {
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_inBubbleState = state;
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}
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MediaInBubbleState inBubbleState() const {
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return _inBubbleState;
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}
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bool isBubbleTop() const {
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return (_inBubbleState == MediaInBubbleState::Top) || (_inBubbleState == MediaInBubbleState::None);
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}
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bool isBubbleBottom() const {
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return (_inBubbleState == MediaInBubbleState::Bottom) || (_inBubbleState == MediaInBubbleState::None);
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}
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virtual bool skipBubbleTail() const {
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return false;
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}
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virtual bool canEditCaption() const {
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return false;
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}
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// Sometimes click on media in message is overloaded by the messsage:
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// (for example it can open a link or a game instead of opening media)
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// But the overloading click handler should be used only when media
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// is already loaded (not a photo or gif waiting for load with auto
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// load being disabled - in such case media should handle the click).
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virtual bool isReadyForOpen() const {
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return true;
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}
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protected:
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not_null<HistoryItem*> _parent;
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int _width = 0;
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MediaInBubbleState _inBubbleState = MediaInBubbleState::None;
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};
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