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/**
* Copyright (C) 2021-2024 Saturneric <eric@bktus.com>
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <eric@bktus.com> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "EMailViewLayout.h"
#include <QCoreApplication>
#include <algorithm>
#include "EMailModel.h"
using namespace Qt::StringLiterals;
auto EMailClampDetailsSize(int width, int height) -> std::pair<int, int> {
const auto wanted_width = width > 0 ? width : kEMailDetailsDefaultWidth;
const auto wanted_height = height > 0 ? height : kEMailDetailsDefaultHeight;
// Only a lower bound. There is no sensible upper one here: the window may
// legitimately be as large as whatever screen it is opening on, and this
// function does not know what that is.
return {std::max(wanted_width, kEMailDetailsMinWidth),
std::max(wanted_height, kEMailDetailsMinHeight)};
}
auto EMailClampDetailsTab(int persisted, int count) -> int {
if (count <= 0) return 0;
return std::clamp(persisted, 0, count - 1);
}
auto EMailShouldCompactActions(int surface_width, bool currently_compact)
-> bool {
// Hysteresis: without it the labels flicker on and off while a window edge
// is being dragged across the threshold.
return currently_compact ? surface_width < kEMailRoomyActionsWidth
: surface_width < kEMailCompactActionsWidth;
}
auto EMailNeedsSecurityRefresh(bool details_visible, bool security_current)
-> bool {
return details_visible && security_current;
}
auto EMailAttachmentBar(const EMailAttachmentBarInput& in)
-> EMailAttachmentBarState {
EMailAttachmentBarState s;
const bool any = in.count > 0;
s.section_visible = any;
s.toggle_visible = any;
s.list_visible = any && in.expanded;
const auto targets = in.count == 1 ? 1 : (s.list_visible ? in.selected : 0);
s.show_open = any;
s.show_save = any;
s.show_save_all = any;
// Changing the parts is a mode, not a selection: a read-only message has
// no Attach or Remove to offer, not even greyed out.
s.show_attach = in.editable;
s.show_remove = in.editable && any;
s.can_open = targets == 1;
s.can_save = targets > 0;
s.can_save_all = any;
s.can_attach = in.editable;
s.can_remove = in.editable && targets > 0;
return s;
}
auto EMailActionBar(const EMailActionBarInput& in) -> EMailActionBarState {
EMailActionBarState s;
const bool received = in.is_message && !in.draft;
s.reply_visible = received;
s.send_visible = !received;
s.attach_visible = !received && in.editable;
s.attachments_menu_visible = in.attachments > 0;
s.more_details = true;
s.more_reply = in.is_message && in.draft;
s.more_send = received;
// Offered only where it changes something, and always while it is on so it
// can be turned off again.
s.more_read_only = received && (in.read_only_offered || in.read_only);
s.read_only_label = in.read_only;
return s;
}
auto EMailSecurityStatus(EMailBadgeState badge, bool encrypted)
-> EMailStatusLabel {
// Translated under the view's own context, spelled out at every call so
// lupdate sees each one: these are the view's strings, moved here only so
// they can be checked.
const auto warning = u":/icons/warning.png"_s;
const auto signature = u":/icons/signature.png"_s;
switch (badge) {
case EMailBadgeState::kENCRYPTED_ONLY:
return {QCoreApplication::translate("EMailPageView", "Encrypted"),
u":/icons/lock.png"_s};
case EMailBadgeState::kSIGNED_UNVERIFIED:
// What is actually known at this point: the message CARRIES a
// signature. Whether it is any good is a separate question that has
// not been asked yet, and the wording must not answer it.
return {encrypted
? QCoreApplication::translate(
"EMailPageView", "Encrypted, signature not checked")
: QCoreApplication::translate("EMailPageView",
"Signature not checked"),
signature};
case EMailBadgeState::kSIGNED_GOOD:
return {encrypted ? QCoreApplication::translate(
"EMailPageView", "Encrypted, signature verified")
: QCoreApplication::translate("EMailPageView",
"Signature verified"),
signature};
case EMailBadgeState::kSIGNED_MISMATCH:
return {QCoreApplication::translate("EMailPageView",
"Signed by a different address"),
warning};
case EMailBadgeState::kSIGNED_EXPIRED:
return {QCoreApplication::translate("EMailPageView",
"Signature or key expired"),
warning};
case EMailBadgeState::kSIGNED_UNKNOWN_KEY:
return {QCoreApplication::translate("EMailPageView",
"Signed by an unknown key"),
warning};
case EMailBadgeState::kSIGNED_BAD:
return {QCoreApplication::translate("EMailPageView", "Bad signature"),
warning};
case EMailBadgeState::kSIGNED_UNAUTHORIZED_KEY:
return {QCoreApplication::translate("EMailPageView",
"Signing key not authorized"),
warning};
case EMailBadgeState::kSIGNED_ERROR:
// Not the same claim as a bad signature, and not the same as one nobody
// has looked at. The check was made and could not produce an answer,
// which is the one outcome trying again might change.
return {QCoreApplication::translate("EMailPageView",
"Signature could not be checked"),
warning};
case EMailBadgeState::kMALFORMED:
return {QCoreApplication::translate("EMailPageView",
"Malformed OpenPGP structure"),
warning};
case EMailBadgeState::kNOT_PROTECTED:
// Stated plainly and quietly. An unprotected message is the ordinary
// case, not a fault, and painting it as a warning would train the user
// to ignore the one that matters.
break;
}
return {
QCoreApplication::translate("EMailPageView", "Not signed or encrypted"),
u":/icons/email.png"_s};
}
auto EMailAttachmentTargets(int count, const QList<int>& selected_rows,
bool list_visible) -> QList<int> {
if (count == 1) return {0};
if (!list_visible) return {};
QList<int> rows;
for (const auto row : selected_rows) {
if (row >= 0 && row < count && !rows.contains(row)) rows.append(row);
}
return rows;
}
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