fdb8cc5852
https://doc.qt.io/archives/qt-5.6/qtquick-performance.html In general, "property var" should be considered to be superior to "property variant" for every use-case from QtQuick 2.0 and newer (note that "property variant" is marked as obsolete), as it allows a true JavaScript reference to be stored (which can reduce the number of conversions required in certain expressions).
98 lines
3.1 KiB
QML
98 lines
3.1 KiB
QML
/*
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Copyright (C) 2020 Sebastian J. Wolf and other contributors
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This file is part of Fernschreiber.
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Fernschreiber 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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Fernschreiber 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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You should have received a copy of the GNU General Public License
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along with Fernschreiber. If not, see <http://www.gnu.org/licenses/>.
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*/
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import QtQuick 2.6
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import Sailfish.Silica 1.0
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Item {
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property ListItem messageListItem
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property var rawMessage: messageListItem.myMessage
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property var stickerData: rawMessage.content.sticker;
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property int usedFileId;
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width: stickerData.width
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height: stickerData.height
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Component.onCompleted: {
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if (stickerData) {
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if (stickerData.is_animated) {
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// Use thumbnail until we can decode TGS files
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usedFileId = stickerData.thumbnail.photo.id;
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if (stickerData.thumbnail.photo.local.is_downloading_completed) {
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stickerImage.source = stickerData.thumbnail.photo.local.path;
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} else {
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tdLibWrapper.downloadFile(usedFileId);
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}
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} else {
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usedFileId = stickerData.sticker.id;
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if (stickerData.sticker.local.is_downloading_completed) {
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stickerImage.source = stickerData.sticker.local.path;
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} else {
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tdLibWrapper.downloadFile(usedFileId);
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}
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}
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}
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}
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Connections {
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target: tdLibWrapper
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onFileUpdated: {
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if (stickerData) {
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if (fileId === usedFileId && fileInformation.local.is_downloading_completed) {
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if (stickerData.is_animated) {
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stickerData.thumbnail.photo = fileInformation;
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} else {
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stickerData.sticker = fileInformation;
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}
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stickerImage.source = fileInformation.local.path;
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}
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}
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}
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}
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Image {
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id: stickerImage
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anchors.fill: parent
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fillMode: Image.PreserveAspectFit
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autoTransform: true
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asynchronous: true
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visible: opacity > 0
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opacity: status === Image.Ready ? 1 : 0
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Behavior on opacity { FadeAnimation {} }
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}
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Loader {
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anchors.fill: parent
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sourceComponent: Component {
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BackgroundImage {}
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}
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active: opacity > 0
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opacity: !stickerImage.visible && !placeHolderDelayTimer.running ? 0.15 : 0
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Behavior on opacity { FadeAnimation {} }
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}
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Timer {
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id: placeHolderDelayTimer
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interval: 1000
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running: true
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}
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}
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