mirror of
https://gitlab.linphone.org/BC/public/linphone-desktop.git
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48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
/*
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* Copyright (c) 2010-2020 Belledonne Communications SARL.
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*
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* This file is part of linphone-desktop
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* (see https://www.linphone.org).
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// =============================================================================
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// `Message.qml` Logic.
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// =============================================================================
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// See: `ensureVisible` on http://doc.qt.io/qt-5/qml-qtquick-textedit.html
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function ensureVisible (cursor) {
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// Case 1: No focused.
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if (!message.activeFocus) {
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return
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}
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// Case 2: Scroll up.
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var contentItem = chat.contentItem
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var contentY = chat.contentY
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var messageY = message.mapToItem(contentItem, 0, 0).y + cursor.y
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if (contentY >= messageY) {
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chat.contentY = messageY
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return
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}
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// Case 3: Scroll down.
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var chatHeight = chat.height
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var cursorHeight = cursor.height
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if (contentY + chatHeight <= messageY + cursorHeight) {
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chat.contentY = messageY + cursorHeight - chatHeight
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}
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}
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