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preload.js
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preload.js
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//var ipc = ipcRenderer;//require("electron").ipcRenderer;
var ipc = require("electron").ipcRenderer;
// import { repo } from "./my-mind/src/command/command.ts";
// var repo=require('./my-mind/my-mind.js').repo;
// var repo=require('./my-mind/src/command/command.ts').repo;
//var PDFViewerApplication = require('pdf.js');
//
//https://discuss.atom.io/t/ipc-send-dom-object/26554
function setData(thefile, thehash){
function wait(condition, callback) { //https://stackoverflow.com/questions/41328534/waiting-until-a-variable-exists-with-typeof-causes-an-infinite-loop
if ((typeof condition() !== "undefined")){//&&(typeof PDFViewerApplication.pdfViewer !== "undefined")&&(typeof PDFViewerApplication.pdfViewer.firstPagePromise !== "undefined")) {
callback();
return;
}
alert('setTimeout');
setTimeout(function () {
wait(condition, callback);
}, 100000);
}
// console.log("thefile: "+thefile);
setTimeout(function () {wait(
getPdfva
, function(){
getPdfva().initialBookmark = thehash;
})}, 1000);
}
function copyToClipboard(text) {//https://komsciguy.com/js/a-better-way-to-copy-text-to-clipboard-in-javascript/
const listener = function(ev) {
ev.preventDefault();
ev.clipboardData.setData('text/plain', text);
};
document.addEventListener('copy', listener);
document.execCommand('copy');
document.removeEventListener('copy', listener);
}
function copyBookmark() {
if(window.getSelection().toString()=='')
result='[[pdfbmk:'+encodeURI(getPdfva().url)+'&'+encodeURI(getPdfva().pdfViewer._location.pdfOpenParams.slice(1))+']]';
else
result='[[pdfbmk:'+encodeURI(getPdfva().url)+'&'+encodeURI(getPdfva().pdfViewer._location.pdfOpenParams.slice(1))+']['+window.getSelection().toString()+']]';
// console.log(result);
copyToClipboard(result);
}
function copyBookmark2() {
var seltext=getFrame0().window.getSelection().toString();
if(seltext=='')
result='[[epubbmk:'+(getWindow().document.location.search.substring(10))+encodeURI(getWindow().document.location.hash)+']]';
else
result='[[epubbmk:'+(getWindow().document.location.search.substring(10))+encodeURI(getWindow().document.location.hash)+']['+seltext+']]';
// console.log(result);
copyToClipboard(result);
}
function setHash(thehash){
// console.log("thehash "+thehash);
PDFViewerApplication.pdfLinkService.setHash(thehash);
// console.log("PDFViewerApplication.pdfViewer._location.pdfOpenParams: "+PDFViewerApplication.pdfViewer._location.pdfOpenParams);
// ipc.send("retrieve2", PDFViewerApplication);//document);
}
function setHashEpub(thehash){
var thewindow= getWindow();
if(thewindow!=null)
thewindow.reader.book.rendition.display(thehash);
}
function visit(node,parent){
parent["text"]=node[1]["raw-value"];
if(node.length>2){
parent["children"]=[];
for (let index = 2; index < node.length; index++) {
var child={};
parent["children"].push(child);
const element = node[index];
visit(element,child);
}
}
}
function drawmap(body){
var themap=JSON.parse(body)
// console.log(themap[2])
var root={"root":{"layout": "graph-right"}}
// storages[3].loadDone(JSON.parse('{ "root": { "text": "My Mind Map2", "layout": "graph-right" } }'));
visit(themap[2],root["root"])
console.log(root)
storages[3].loadDone(root);
}
ipc.on("incoming2", function(event,thehash){
// console.log("incoming2: "+thehash);
setHash(thehash);
});
ipc.on("incoming3", function(event,thehash){
// console.log("incoming2: "+thehash);
setHashEpub(thehash);
});
ipc.on("drawmap", function(event,body){
// console.log("incoming2: "+thehash);
drawmap(body);
});
ipc.on("incoming", function(event, thefile, thehash){
// console.log("incoming "+thefile+", hash: "+thehash);
setData(thefile, thehash);
});
ipc.on("copyBookmark", function(event, thefile, thehash){
// console.log("copyBookmark ");
copyBookmark();
});
ipc.on("copybmks", function(event, thefile, thehash){
var pdfva=getPdfva();
// console.log("copybmks called on: "+thefile+", hash: "+thehash+', PDFViewerApplication: '+((typeof PDFViewerApplication== "undefined")?'undefined':'defined'));
// console.log('PDFViewerApplication: '+getPdfOutlines(pdfva));
copyToClipboard(getPdfOutlines(pdfva));
// console.log('pdfViewer: '+pdfViewer);
// setData(thefile, thehash);
});
ipc.on("copybmks2", function(event){
// console.log("copybmks2 called on: "+getWindow().document.location.search+", hash: "+getWindow().document.location.hash+', getWindow().reader.book.navigation.toc: '+((typeof getWindow().reader.book.navigation.toc)));
var result="* outline\n";
var fn=getWindow().document.location.search.substring(10);
function traversal(node,level){
result=result+('*'.repeat(level))+' [[epubbmk:'+fn+'#'+node.href+']['+node.label.trim()+']]\n';
node.subitems.forEach(function(chapter) {
traversal(chapter,level+1);
});
}
getWindow().reader.book.navigation.toc.forEach(function(chapter) {
traversal(chapter,2);
});
copyToClipboard(result);
// console.log(result);
});
ipc.on("copyBookmark2", function(event){
// console.log("copyBookmark2 ");
copyBookmark2();
});
function getPdfOutlines(pdfva){
var result="* outline\n";
/**
* Use recursive method to traverse the first orderDOMtree
* @param node root node
*/
function traversal(node,level){
//YesnodeTreatment
//result=result+','+('*'.repeat(level))+' '+node.tagName+((node.tagName=='DIV')?'('+node.className+')':'')+':'+node.children.length+"\n";
if(node.tagName=='A'){
result=result+('*'.repeat(1+level/2))+' '+node.text+"\n";
const url = new URL(node.href);
var path = url.search.split('&')[0].split('=')[1];
result+='[[pdfbmk:'+path+'&';
result+=url.hash.substring(1)+']['+node.text+"]]\n";
}
var i = 0, children = node.children,item;
for(; i < children.length ; i++){
item = children[i];
if(item.nodeType === 1){
//Recursive traversal sub node
traversal(item,level+1);
}
}
}
traversal(pdfva.pdfOutlineViewer.container,0);
var OutlinesText=result;
return OutlinesText;
}
function getPdfva(){
var pdfva=null;
if(typeof PDFViewerApplication== "undefined"){
console.log('frames:'+frames);
if(typeof frames[0]== "undefined")
pdfva=frames.window.PDFViewerApplication;
else
pdfva=frames[0].window.PDFViewerApplication;
}
else
pdfva=PDFViewerApplication;
return pdfva;
}
function getWindow(){
console.log('typeof frames[0]: '+typeof frames[0]+', window.reader: '+typeof window.reader+', window.PDFViewerApplication: '+typeof window.PDFViewerApplication+', window.location: '+window.location);
if ('undefined'==typeof frames[0])// first time access after page load; window object already valid
return null;
if(typeof frames[0].frames[0]== "undefined"){
return window;
}
else return frames[0].window;
//frames[0].reader.book
//
}
function getFrame0(){
if(frames[0].name== "pdf"){
return frames[0].frames[0];
}
else return frames[0];
//frames[0].reader.book
//
}
window.addEventListener('load', (event) => { //https://github.com/futurepress/epub.js/wiki/Updating-to-v0.3-from-v0.2#displaying-content
// console.log('load\n');
var thewindow= getWindow();
if(thewindow!=null && thewindow.reader!=null)
console.log('thewindow.reader.book.rendition: '+typeof thewindow.reader.book.rendition+';'+thewindow.reader.book);
else if(thewindow==null && window.reader!=null)
// console.log('window.reader.book.rendition: '+typeof window.reader.book.rendition+';'+window.reader.book);
window.reader.book.rendition.display(window.location.hash.substring(1));
});
document.addEventListener("webviewerloaded", function() {//https://github.com/mozilla/pdf.js/issues/9527
PDFViewerApplication.initializedPromise.then(function() {
PDFViewerApplication.eventBus.on("documentloaded", function(event) {
// console.log("The document has now been loaded");
const queryString=window.location.search;
const thehash=queryString.slice(queryString.indexOf('&') + 1);
// console.log('window.location: '+window.location+', window.location.search: '+thehash);
if(thehash!='')
PDFViewerApplication.pdfLinkService.setHash(thehash);
});
});
});
// document.addEventListener('readystatechange', (event) => {
// console.log(`readystate: ${document.readyState}\n`);
// });
// document.addEventListener('DOMContentLoaded', (event) => {
// console.log(`DOMContentLoaded\n`);
// });