145 lines
4.2 KiB
C++
145 lines
4.2 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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#include "profile/profile_block_channel_members.h"
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#include "styles/style_profile.h"
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#include "ui/widgets/buttons.h"
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#include "boxes/members_box.h"
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#include "observer_peer.h"
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#include "lang.h"
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namespace Profile {
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using UpdateFlag = Notify::PeerUpdate::Flag;
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ChannelMembersWidget::ChannelMembersWidget(QWidget *parent, PeerData *peer) : BlockWidget(parent, peer, lang(lng_profile_participants_section)) {
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auto observeEvents = UpdateFlag::ChannelCanViewAdmins
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| UpdateFlag::ChannelCanViewMembers
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| UpdateFlag::AdminsChanged
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| UpdateFlag::MembersChanged;
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subscribe(Notify::PeerUpdated(), Notify::PeerUpdatedHandler(observeEvents, [this](const Notify::PeerUpdate &update) {
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notifyPeerUpdated(update);
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}));
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refreshButtons();
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}
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void ChannelMembersWidget::notifyPeerUpdated(const Notify::PeerUpdate &update) {
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if (update.peer != peer()) {
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return;
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}
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if (update.flags & (UpdateFlag::ChannelCanViewAdmins | UpdateFlag::AdminsChanged)) {
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refreshAdmins();
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}
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if (update.flags & (UpdateFlag::ChannelCanViewMembers | UpdateFlag::MembersChanged)) {
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refreshMembers();
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}
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refreshVisibility();
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contentSizeUpdated();
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}
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void ChannelMembersWidget::addButton(const QString &text, object_ptr<Ui::LeftOutlineButton> *button, const char *slot) {
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if (text.isEmpty()) {
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button->destroy();
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} else if (*button) {
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(*button)->setText(text);
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} else {
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button->create(this, text, st::defaultLeftOutlineButton);
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(*button)->show();
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connect(*button, SIGNAL(clicked()), this, slot);
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}
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}
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void ChannelMembersWidget::refreshButtons() {
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refreshAdmins();
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refreshMembers();
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refreshVisibility();
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}
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void ChannelMembersWidget::refreshAdmins() {
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auto getAdminsText = [this]() -> QString {
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if (auto channel = peer()->asChannel()) {
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if (!channel->isMegagroup() && channel->canViewAdmins()) {
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int adminsCount = qMax(channel->adminsCount(), 1);
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return lng_channel_admins_link(lt_count, adminsCount);
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}
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}
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return QString();
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};
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addButton(getAdminsText(), &_admins, SLOT(onAdmins()));
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}
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void ChannelMembersWidget::refreshMembers() {
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auto getMembersText = [this]() -> QString {
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if (auto channel = peer()->asChannel()) {
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if (!channel->isMegagroup() && channel->canViewMembers()) {
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int membersCount = qMax(channel->membersCount(), 1);
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return lng_channel_members_link(lt_count, membersCount);
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}
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}
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return QString();
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};
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addButton(getMembersText(), &_members, SLOT(onMembers()));
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}
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void ChannelMembersWidget::refreshVisibility() {
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setVisible(_admins || _members);
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}
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int ChannelMembersWidget::resizeGetHeight(int newWidth) {
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int newHeight = contentTop();
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auto resizeButton = [this, &newHeight, newWidth](object_ptr<Ui::LeftOutlineButton> &button) {
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if (!button) {
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return;
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}
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int left = defaultOutlineButtonLeft();
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int availableWidth = newWidth - left - st::profileBlockMarginRight;
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accumulate_min(availableWidth, st::profileBlockOneLineWidthMax);
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button->resizeToWidth(availableWidth);
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button->moveToLeft(left, newHeight);
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newHeight += button->height();
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};
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resizeButton(_admins);
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resizeButton(_members);
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return newHeight;
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}
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void ChannelMembersWidget::onAdmins() {
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if (auto channel = peer()->asChannel()) {
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Ui::show(Box<MembersBox>(channel, MembersFilter::Admins));
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}
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}
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void ChannelMembersWidget::onMembers() {
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if (auto channel = peer()->asChannel()) {
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Ui::show(Box<MembersBox>(channel, MembersFilter::Recent));
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}
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}
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} // namespace Profile
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