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NadirRoGueNadirRoGue
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‎ajax/loadfile.php

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<?php
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// Check if we are a user
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OCP\JSON::checkLoggedIn();
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OCP\JSON::callCheck();
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\OC::$server->getSession()->close();
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// Set the session key for the file we are about to edit.
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$dir = isset($_GET['dir']) ? $_GET['dir'] : '';
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$filename = isset($_GET['file']) ? $_GET['file'] : '';
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$token = isset($_GET['token']) ? $_GET['token'] : '';
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if(!empty($filename))
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{
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header('Content-Type: application/pdf');
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if(!empty($token))
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{
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$linkItem = \OC::$server->getShareManager()->getShareByToken($token);
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$owner = $linkItem->getShareOwner();
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\OC\Files\Filesystem::init($owner, '/' . $owner . '/files');
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$dir = '/' . \OC\Files\Filesystem::getPath($linkItem->getNodeId());
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$dir = rtrim($dir, '/');
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}
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$path = $dir.'/'.$filename;
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$filecontents = \OC\Files\Filesystem::file_get_contents($path);
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if($filecontents)
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{
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echo $filecontents;
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}
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else
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{
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\OCP\Util::writeLog('files_pdfviewer', 'Error when opening PDF ' . $path, \OCP\Util::ERROR);
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OCP\JSON::error(['data' => ['message' => 'A problem occoured while loading the PDF']]);
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}
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return;
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}
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else
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{
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OCP\JSON::error(['data' => ['message' => 'Invalid file path supplied.']]);
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}

‎ajax/loadpublicfile.php

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<?php
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// Check if we are a user
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//OCP\JSON::checkLoggedIn();
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OCP\JSON::callCheck();
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\OC::$server->getSession()->close();
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// Set the session key for the file we are about to edit.
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$token = isset($_GET['token']) ? $_GET['token'] : '';
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if(!empty($token))
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{
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header('Content-Type: application/pdf');
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$linkItem = \OC::$server->getShareManager()->getShareByToken($token);
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$owner = $linkItem->getShareOwner();
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\OC\Files\Filesystem::tearDown();
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\OC\Files\Filesystem::init($owner, '/' . $owner . '/files');
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$path = '/' . \OC\Files\Filesystem::getPath($linkItem->getNodeId());
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$filecontents = \OC\Files\Filesystem::file_get_contents($path);
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if($filecontents)
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{
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echo $filecontents;
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}
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else
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{
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\OCP\Util::writeLog('files_nbviewer', 'Error while opening PDF ' . $path, \OCP\Util::ERROR);
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OCP\JSON::error(['data' => ['message' => 'A problem occoured while loading the PDF']]);
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}
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return;
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} else {
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OCP\JSON::error(['data' => ['message' => 'Invalid file path supplied.']]);
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}

‎appinfo/app.php

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<?php
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OCP\Util::addscript('files_pdfviewer', 'pdfobject.min');
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OCP\Util::addscript('files_pdfviewer', 'app');

‎appinfo/info.xml

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<?xml version="1.0"?>
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<info>
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<id>files_nbviewer</id>
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<name>CERNBox NB Viewer</name>
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<description>This application integrates the IPython/Jupyter Notebook framework into CERNBox files application</description>
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<licence>AGPL</licence>
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<author>Nadir Roman Guerrero</author>
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<requiremin>8.2.0</requiremin>
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<shipped>true</shipped>
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<default_enable/>
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</info>

‎appinfo/routes.php

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<?php
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/** @var $this OC\Route\Router */
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$this->create('files_pdfviewer_load', '/ajax/loadfile.php')
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->actionInclude('files_pdfviewer/ajax/loadfile.php');
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$this->create('files_pdfviewer_loadpublic', '/ajax/loadpublicfile.php')
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->actionInclude('files_pdfviewer/ajax/loadpublicfile.php');

‎appinfo/version

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1.0

‎js/app.js

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function PDF_closePublicFileCallback()
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{
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$('#imgframe').empty();
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$('#imgframe').text('Reloading...');
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window.location.reload();
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}
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function PDF_loadFile(file, dir)
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{
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var urlD = OC.filePath('files_pdfviewer', 'ajax', 'loadfile.php') + "?file=" + encodeURIComponent(file)
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+ "&dir=" + encodeURIComponent(dir) + "&requesttoken=" + encodeURIComponent(oc_requesttoken);
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if($('#isPublic').attr('value') == '1')
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{
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urlD = urlD + "&token=" + encodeURIComponent($('#sharingToken').attr('value'));
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}
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$('#pdfviewer-loader').remove();
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var frame = $('#pdfviewer-frame');
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frame.attr('type', 'application/pdf');
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frame.attr('src', urlD);
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frame.contents().find('title').html(file);
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frame.on('load', function()
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{
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document.title = file;
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});
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}
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function PDF_loadPublicFile(token)
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{
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var urlD = OC.filePath('files_pdfviewer', 'ajax', 'loadpublicfile.php') + "?token=" + encodeURIComponent(token)
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+ "&requesttoken=" + encodeURIComponent(oc_requesttoken);
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$('#pdfviewer-loader').remove();
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var frame = $('#pdfviewer-frame');
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frame.attr('type', 'application/pdf');
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frame.attr('src', urlD);
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}
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/**
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* Set up all html elements needed to display the notebook
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*/
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function PDF_setUpEditor(closeCallBack)
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{
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isPDFViewerOpen = true;
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var mainDiv = $('#pdfviewer');
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if(mainDiv.length < 1)
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{
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mainDiv = $('<div id="pdfviewer"></div>');
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mainDiv.css('position', 'absolute');
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mainDiv.css('top', '0');
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mainDiv.css('left', '0');
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mainDiv.css('width', '100%');
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mainDiv.css('height', '100%');
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mainDiv.css('z-index', '200');
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mainDiv.css('background-color', '#fff');
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var frame = $('<iframe id="pdfviewer-frame"></iframe>');
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frame.css('position', 'absolute');
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frame.css('top', '0');
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frame.css('left', '0');
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frame.css('width', '100%');
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frame.css('height', '100%');
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mainDiv.append(frame);
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$('#content').append(mainDiv);
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}
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var loadingImg = $('<div id="pdfviewer-loader"></div>');
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loadingImg.css('position', 'absolute');
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loadingImg.css('top', '50%');
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loadingImg.css('left', '50%');
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loadingImg.css('width', 'auto');
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loadingImg.css('height', 'auto');
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var img = OC.imagePath('core', 'loading-dark.gif');
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var imgContent = $('<img></img>');
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imgContent.attr('src',img);
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loadingImg.append(imgContent);
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var closeButton = $('<div></div>');
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closeButton.css('position', 'absolute');
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closeButton.css('top', '0');
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closeButton.css('left', '95%');
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closeButton.css('width', 'auto');
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closeButton.css('height', 'auto');
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closeButton.css('z-index', '200');
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closeButton.css('background-color', '#f00');
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var closeImg = OC.imagePath('core', 'actions/close.svg');
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var closeImgContent = $('<img></img>');
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closeImgContent.attr('src', closeImg);
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closeButton.append(closeImgContent);
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closeButton.click(function() { PDF_closeFile(closeCallBack); });
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$('#app-navigation').hide();
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$('#app-content').hide();
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mainDiv.append(loadingImg);
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mainDiv.append(closeButton);
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}
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/**
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* Open the notebook viewer and displays the notebook given the directory where it belongs and it's name
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* @param directory
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* @param file
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*/
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function PDF_openFile(directory, file)
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{
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PDF_setUpEditor();
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PDF_loadFile(file, directory);
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}
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/**
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* Open the notebook viewer and displays the notebook given by a publically shared by link
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* @param token
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*/
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function PDF_openPublicFile(token)
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{
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PDF_setUpEditor(closePublicFileCallback);
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PDF_loadPublicFile(token);
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}
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function PDF_closeFile(callback)
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{
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if(isPDFViewerOpen)
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{
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$('#pdfviewer').remove();
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$('#app-navigation').show();
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$('#app-content').show();
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isPDFViewerOpen = false;
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if(callback)
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{
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callback();
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}
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}
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}
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var isPDFViewerOpen = false;
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$(document).ready(function ()
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{
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if (typeof FileActions !== 'undefined')
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{
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FileActions.setDefault('application/pdf', 'Edit');
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OCA.Files.fileActions.register('application/pdf', 'Edit', OC.PERMISSION_READ, '', function (filename)
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{
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PDF_openFile(FileList.getCurrentDirectory(), filename);
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});
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}
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});

‎js/pdfobject.min.js

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