openmedialibrary/static/reader/epub.js
2019-01-22 20:31:24 +05:30

118 lines
4.5 KiB
JavaScript

"use strict";
var reader;
var id = document.location.pathname.split('/')[1];
var annotations = JSON.parse(localStorage[id + '.annotations'] || '[]')
var currentSelection;
var fontSize = parseInt(localStorage.epubFontSize || '100', 10)
function saveAnnotations() {
localStorage[id + '.annotations'] = JSON.stringify(annotations)
}
function getText(book, cfiRange, cb) {
book.getRange(cfiRange).then(function (range) {
var text;
if (range) {
text = range.toString();
}
cb(text)
})
}
function onHighlightClicked(e) {
console.log("highlight clicked", e.target.dataset.epubcfi);
if(e.target.classList.contains('selected')) {
e.target.classList.remove('selected')
} else {
document.querySelectorAll('.epubjs-hl.selected').forEach(function(other) {
other.classList.remove('selected')
})
e.target.classList.add('selected')
}
}
document.onreadystatechange = function () {
if (document.readyState == "complete") {
EPUBJS.filePath = "/static/epub.js/js/libs/";
EPUBJS.cssPath = "/static/epub.js/css/";
EPUBJS.core.addCss('/static/css/epub.css')
// fileStorage.filePath = EPUBJS.filePath;
reader = ePubReader(document.location.pathname.replace(/\/reader\//, '/epub/'), {
restore: true
});
var rendition = reader.rendition,
book = reader.book;
rendition.themes.fontSize(fontSize + "%");
annotations.forEach(function(a) {
rendition.annotations.highlight(a.cfiRange, a.data || {}, onHighlightClicked);
})
reader.rendition.on('keydown', function(event) {
if (event.key == 'Delete') {
document.querySelectorAll('.epubjs-hl.selected').forEach(function(a) {
annotations = annotations.filter(function(annotation) {
return annotation.cfiRange != a.dataset.epubcfi
})
rendition.annotations.remove(a.dataset.epubcfi)
saveAnnotations()
})
}
if (event.key == 'n') {
if (currentSelection) {
/*
var range = currentSelection.contents.window.getSelection().getRangeAt(0)
console.log(
currentSelection.cfiRange,
reader.rendition.book.section().cfiFromRange(range).toString()
)
//currentSelection.cfiRange = reader.rendition.book.section().cfiFromRange(range).toString()
*/
rendition.annotations.highlight(currentSelection.cfiRange, currentSelection.data, onHighlightClicked);
currentSelection.contents.window.getSelection().removeAllRanges();
delete currentSelection.contents
annotations.push(currentSelection)
saveAnnotations()
document.querySelectorAll('.epubjs-hl.selected').forEach(function(other) {
other.classList.remove('selected')
})
currentSelection = null
}
}
if (event.keyCode == 61 && event.shiftKey) {
fontSize += 10
rendition.themes.fontSize(fontSize + "%");
localStorage.epubFontSize = fontSize
event.preventDefault()
} else if (event.keyCode == 173 && event.shiftKey) {
fontSize -= 10
rendition.themes.fontSize(fontSize + "%");
localStorage.epubFontSize = fontSize
event.preventDefault()
} else if (event.keyCode == 48 && event.shiftKey) {
fontSize = 100
rendition.themes.fontSize(fontSize + "%");
localStorage.epubFontSize = fontSize
event.preventDefault()
}
console.log(fontSize)
})
rendition.on("mark", function(cfiRange, contents) {
console.log('!! mark', cfiRange)
})
rendition.on("selected", function(cfiRange, contents) {
console.log('!! selected', cfiRange)
getText(book, cfiRange, function(quote) {
currentSelection = {
cfiRange: cfiRange,
data: {
quote: quote
},
contents: contents
}
})
});
}
};