harbour-books/app/qml/BooksBookView.qml
2016-10-07 18:47:27 +03:00

251 lines
8.4 KiB
QML

/*
Copyright (C) 2015-2016 Jolla Ltd.
Contact: 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:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* 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.
* Neither the name of the Jolla Ltd 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
SilicaFlickable {
id: root
property variant book
signal closeBook()
signal pageClicked(var page)
property int _currentPage: bookListWatcher.currentIndex
property bool _loading: minLoadingDelay.running || bookModel.loading
property var _currentState: _visibilityStates[globalSettings.pageDetails % _visibilityStates.length]
readonly property var _visibilityStates: [
{ pager: false, page: false, title: false, tools: false },
{ pager: false, page: true, title: true, tools: false },
{ pager: true, page: true, title: true, tools: true }
]
// NOTE: These have to match ResetReason in BooksBookModel
readonly property var _loadingTextLabel: [
//% "Formatting..."
qsTrId("harbour-books-book-view-formatting"),
//% "Loading..."
qsTrId("harbour-books-book-view-loading"),
//% "Applying larger fonts..."
qsTrId("harbour-books-book-view-applying_larger_fonts"),
//% "Applying smaller fonts..."
qsTrId("harbour-books-book-view-applying_smaller_fonts")
]
PullDownMenu {
MenuItem {
//% "Back to library"
text: qsTrId("harbour-books-book-view-back")
onClicked: root.closeBook()
}
}
Timer {
id: minLoadingDelay
interval: 1000
}
Timer {
id: resetPager
interval: 0
onTriggered: {
if (_currentPage >= 0) {
console.log("resetting pager to", _currentPage)
pager.currentPage = _currentPage
}
}
}
BookModel {
id: bookModel
book: root.book ? root.book : null
size: bookListWatcher.size
currentPage: _currentPage
leftMargin: Theme.horizontalPageMargin
rightMargin: Theme.horizontalPageMargin
topMargin: Theme.itemSizeSmall
bottomMargin: Theme.itemSizeSmall
settings: globalSettings
onJumpToPage: bookView.jumpTo(index)
onCurrentPageChanged: {
if (currentPage >= 0 && bookView._jumpingTo < 0) {
pager.currentPage = currentPage
}
}
onLoadingChanged: {
if (loading && !pageCount) {
minLoadingDelay.start()
bookView._jumpingTo = -1
}
}
}
ListWatcher {
id: bookListWatcher
listView: bookView
}
SilicaListView {
id: bookView
model: bookModel
anchors.fill: parent
flickDeceleration: maximumFlickVelocity
orientation: ListView.Horizontal
snapMode: ListView.SnapOneItem
spacing: Theme.paddingMedium
opacity: _loading ? 0 : 1
visible: opacity > 0
delegate: BooksPageView {
width: bookView.width
height: bookView.height
model: bookModel
page: index
leftMargin: bookModel.leftMargin
rightMargin: bookModel.rightMargin
topMargin: bookModel.topMargin
bottomMargin: bookModel.bottomMargin
leftSpaceReserved: pageTools.visible ? pageTools.leftSpaceUsed : 0
rightSpaceReserved: pageTools.visible ? pageTools.rightSpaceUsed: 0
titleVisible: _currentState.title
pageNumberVisible: _currentState.page
title: bookModel.title
onPageClicked: {
root.pageClicked(index)
globalSettings.pageDetails = (globalSettings.pageDetails+ 1) % _visibilityStates.length
}
}
property int _jumpingTo: -1
function jumpTo(page) {
if (page >=0 && page !== _currentPage) {
_jumpingTo = page
positionViewAtIndex(page, ListView.Center)
_jumpingTo = -1
if (_currentPage !== page) {
console.log("oops, still at", _currentPage)
resetPager.restart()
}
}
}
Behavior on opacity { FadeAnimation {} }
BooksPageTools {
id: pageTools
anchors {
top: parent.top
left: parent.left
right: parent.right
}
leftMargin: bookModel.leftMargin
rightMargin: bookModel.rightMargin
opacity: _currentState.tools ? 1 : 0
visible: opacity > 0 && book && bookModel.pageCount && !_loading
Behavior on opacity { FadeAnimation {} }
onIncreaseFontSize: bookModel.increaseFontSize()
onDecreaseFontSize: bookModel.decreaseFontSize()
}
BooksPager {
id: pager
anchors {
bottom: parent.bottom
bottomMargin: (Theme.itemSizeExtraSmall + 2*(bookModel.bottomMargin - height))/4
}
pageCount: bookModel.pageCount
width: parent.width
opacity: (_currentState.pager && book && bookModel.pageCount) ? 0.75 : 0
visible: opacity > 0
onPageChanged: bookView.jumpTo(page)
Behavior on opacity { FadeAnimation {} }
}
}
BooksTitleLabel {
id: titleLabel
anchors {
top: parent.top
left: parent.left
right: parent.right
leftMargin: bookModel.leftMargin
rightMargin: bookModel.rightMargin
}
text: bookModel.title
height: Theme.itemSizeExtraSmall
color: Theme.highlightColor
opacity: _loading ? 0.6 : 0
}
BusyIndicator {
id: busyIndicator
anchors.centerIn: parent
size: BusyIndicatorSize.Large
running: _loading
}
BooksFitLabel {
anchors.fill: busyIndicator
text: bookModel.progress > 0 ? bookModel.progress : ""
opacity: (_loading && bookModel.progress > 0) ? 1 : 0
}
Button {
//% "Cancel"
text: qsTrId("harbour-books-book-view-cancel_loading")
height: Theme.itemSizeLarge
anchors {
bottom: parent.bottom
horizontalCenter: parent.horizontalCenter
}
onClicked: root.closeBook()
enabled: _loading && bookModel.resetReason === BookModel.ReasonLoading
visible: opacity > 0
opacity: enabled ? 1.0 : 0.0
Behavior on opacity { FadeAnimation { } }
}
Label {
anchors {
top: busyIndicator.bottom
topMargin: Theme.paddingLarge
horizontalCenter: busyIndicator.horizontalCenter
}
horizontalAlignment: Text.AlignHCenter
color: Theme.highlightColor
opacity: _loading ? 1 : 0
visible: opacity > 0
Behavior on opacity { FadeAnimation {} }
text: bookModel ? _loadingTextLabel[bookModel.resetReason] : ""
}
}