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class DropFile |
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{ |
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/** |
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* Constructor. |
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*/ |
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constructor() |
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{ |
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this.oDropFile = null; |
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this.oFileInput = null; |
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this.oFileSelect = null; |
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this.oSelectedFiles = null; |
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this.dataTransfer = new DataTransfer(); |
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} |
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init(strName) |
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{ |
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this.oDropFile = document.querySelector('.dropfile'); |
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this.oFileInput = document.querySelector('[name="files[]"'); |
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this.oFileSelect = document.querySelector('.fileselect'); |
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this.oSelectedFiles = document.querySelector('.selectedfiles'); |
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['drag', 'dragstart', 'dragend', 'dragover', 'dragenter', 'dragleave', 'drop'].forEach( event => this.oDropFile.addEventListener(event, function(e) { |
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e.preventDefault(); |
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e.stopPropagation(); |
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}), false ); |
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['dragover', 'dragenter'].forEach( event => this.oDropFile.addEventListener(event, function(e) { |
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g_oDropFile.oDropFile.classList.add('dragover'); |
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}), false ); |
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['dragleave', 'dragend', 'drop'].forEach( event => this.oDropFile.addEventListener(event, function(e) { |
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g_oDropFile.oDropFile.classList.remove('dragover'); |
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}), false ); |
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this.oDropFile.addEventListener('drop', function(e) { |
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for (var i = 0; i < e.dataTransfer.files.length; i++) { |
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// TODO: check, if allowed |
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g_oDropFile.dataTransfer.items.add(e.dataTransfer.files[i]); |
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} |
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updateFileList(); |
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}, false ); |
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this.oFileInput.addEventListener('change', function(e) { |
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for (var i = 0; i < g_oDropFile.oFileInput.files.length; i++) { |
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// TODO: check, if allowed |
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g_oDropFile.dataTransfer.items.add(g_oDropFile.oFileInput.files[i]); |
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} |
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updateFileList(); |
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}, false ); |
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} |
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setSelectedFiles() |
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{ |
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this.oFileInput.files = g_oDropFile.dataTransfer.files; |
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return true; |
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} |
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} |
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function updateFileList() |
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{ |
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/* |
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const filesArray = Array.from(g_oDropFile.dataTransfer.files); |
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if (filesArray.length > 1) { |
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g_oDropFile.oSelectedFiles.innerHTML = '<p>Selected files:</p><ul><li>' + filesArray.map(f => f.name).join('</li><li>') + '</li></ul>'; |
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} else if (filesArray.length == 1) { |
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g_oDropFile.oSelectedFiles.innerHTML = `<p>Selected file: ${filesArray[0].name}</p>`; |
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} else { |
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g_oDropFile.oSelectedFiles.innerHTML = ''; |
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} |
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*/ |
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if (g_oDropFile.dataTransfer.files.length === 0) { |
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g_oDropFile.oSelectedFiles.innerHTML = ''; |
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return; |
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} |
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const aCSSClasses = { |
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'image/jpg' : 'imgfile', |
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'image/jpeg' : 'imgfile', |
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'image/png' : 'imgfile', |
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'image/gif' : 'imgfile', |
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'image/bmp' : 'imgfile', |
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'image/svg+xml' : 'imgfile', |
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'application/pdf' : 'pdffile', |
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'application/vnd.ms-excel' : 'xlsfile', |
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'application/msexcel' : 'xlsfile', |
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'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' : 'xlsfile', |
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'text/csv' : 'xlsfile', |
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'application/vnd.ms-word' : 'docfile', |
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'application/msword' : 'docfile', |
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'application/vnd.openxmlformats-officedocument.wordprocessingml.document' : 'docfile', |
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'text/x-vcard' : 'vcard', |
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'text/calendar' : 'ical', |
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'application/zip' : 'archive', |
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'application/x-zip-compressed' : 'archive', |
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'application/vnd.rar' : 'archive', |
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'application/x-rar-compressed' : 'archive', |
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'application/x-tar' : 'archive', |
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'application/x-tar-compressed' : 'archive', |
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'application/x-7z-compressed' : 'archive', |
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'audio/mpeg' : 'audiofile', |
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'audio/mp3' : 'audiofile', |
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'video/mpeg' : 'videofile', |
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'video/mp4' : 'videofile', |
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'video/x-msvideo' : 'videofile', |
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}; |
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var strSelectedFiles = ''; |
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for (var i = 0; i < g_oDropFile.dataTransfer.files.length; i++) { |
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var strCSSClass = 'file'; |
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if (aCSSClasses[g_oDropFile.dataTransfer.files[i].type]) { |
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strCSSClass += ' ' + aCSSClasses[g_oDropFile.dataTransfer.files[i].type]; |
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} |
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const EOL = "\n"; |
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const strName = g_oDropFile.dataTransfer.files[i].name; |
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const strOnClick = "deleteSelectedFile(" + i + ", '" + strName + "');"; |
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const strDeleteFromList = 'Eintrag aus der Liste entfernen'; |
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strSelectedFiles += '<div class="dropfileitem">' + EOL; |
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strSelectedFiles += ' <div class="dropedfile">' + EOL; |
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strSelectedFiles += ' <div class="dropedname">' + EOL; |
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strSelectedFiles += ' <span class="' + strCSSClass + '" title="' + strName + '">' + strName + '</span>' + EOL; |
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strSelectedFiles += ' </div>' + EOL; |
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strSelectedFiles += ' <div class="dropeddelete" onclick="' + strOnClick + '" title="' + strDeleteFromList + '"></div>' + EOL; |
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strSelectedFiles += ' </div>' + EOL; |
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strSelectedFiles += '</div>' + EOL; |
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} |
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g_oDropFile.oSelectedFiles.innerHTML = strSelectedFiles; |
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} |
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function deleteSelectedFile(iIndex, strFilename) |
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{ |
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if (confirm('Soll die Datei [' + strFilename + '] aus der Liste entfernt werden?') == true) { |
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g_oDropFile.dataTransfer.items.remove(iIndex); |
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updateFileList(); |
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} |
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} |
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const g_oDropFile = new DropFile(); |
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.