harbour-books/app/qml/BooksMainPage.qml
2022-10-10 03:45:18 +03:00

165 lines
5.3 KiB
QML

/*
Copyright (C) 2015-2022 Jolla Ltd.
Copyright (C) 2015-2022 Slava Monich <slava.monich@jolla.com>
You may use this file under the terms of BSD license as follows:
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
3. Neither the names of the copyright holders nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
*/
import QtQuick 2.0
import Sailfish.Silica 1.0
import harbour.books 1.0
Page {
id: page
allowedOrientations: window.allowedOrientations
property variant currentShelf: storageView.currentShelf
readonly property bool pageActive: status === PageStatus.Active
readonly property Item currentView: Settings.currentBook ? bookView : storageView
property Item bookView
readonly property real fadeInThreshold: height/4
readonly property real swipeAwayThreshold: 3 * height/4
Component.onCompleted: createBookViewIfNeeded()
onCurrentViewChanged: {
if (currentView) {
flickable.pullDownMenu = currentView.pullDownMenu
flickable.pullDownMenu.flickable = flickable
}
}
function createBookViewIfNeeded() {
if (Settings.currentBook && !bookView) {
bookView = bookViewComponent.createObject(flickable.contentItem)
}
}
Connections {
target: Settings
onCurrentBookChanged: createBookViewIfNeeded()
}
SilicaFlickable {
id: flickable
anchors.fill: parent
contentWidth: page.width
contentHeight: Settings.currentBook ? (2 * page.height) : page.height
flickableDirection: Flickable.VerticalFlick
flickDeceleration: maximumFlickVelocity
interactive: currentView && currentView.viewInteractive && !swipeAwayAnimation.running
pressDelay: 0
BooksStorageView {
id: storageView
width: page.width
height: page.height
y: Settings.currentBook ? flickable.contentY : 0
viewScale: 0.9 + 0.1 * opacity
pageActive: page.pageActive
isCurrentView: currentView === storageView
opacity: Settings.currentBook ? ((y > fadeInThreshold) ? 1 : (y > 0) ? y/fadeInThreshold : 0) : 1
visible: opacity > 0
onOpenBook: Settings.currentBook = book
Behavior on opacity {
enabled: !Settings.currentBook
FadeAnimation { }
}
}
onMovementEnded: {
if (contentY > 0 && Settings.currentBook) {
if (contentY > swipeAwayThreshold) {
swipeAwayAnimation.start()
} else {
unswipeAnimation.start()
}
}
}
}
Component {
id: bookViewComponent
BooksBookView {
id: bookView
width: page.width
height: page.height
z: storageView.z + 1
visible: !!Settings.currentBook
orientation: page.orientation
isCurrentView: currentView === bookView
pageActive: page.pageActive
book: Settings.currentBook ? Settings.currentBook : null
loadingBackgroundOpacity: 0.8 /* opacityOverlay */ * storageView.opacity
onCloseBook: Settings.currentBook = null
onVisibleChanged: if (visible) opacity = 1
}
}
SequentialAnimation {
id: swipeAwayAnimation
alwaysRunToEnd: true
NumberAnimation {
target: flickable
property: "contentY"
to: page.height
duration: 150
easing.type: Easing.Linear
}
ScriptAction {
script: {
Settings.currentBook = null
flickable.contentY = 0
}
}
}
SequentialAnimation {
id: unswipeAnimation
alwaysRunToEnd: true
NumberAnimation {
target: flickable
property: "contentY"
to: 0
duration: 150
easing.type: Easing.InOutQuad
}
}
}