File size: 5,702 Bytes
dea2c47 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | (function(window) {
const PdfApp = window.PdfApp = window.PdfApp || {};
const features = PdfApp.features = PdfApp.features || {};
features.split = function initSplitFeature() {
const dropArea = document.getElementById('splitDropArea');
const fileInput = document.getElementById('split_pdf_file');
const fileList = document.getElementById('splitFileList');
const form = document.getElementById('splitPdfForm');
const submitButton = document.getElementById('splitPdfBtn');
const loading = document.getElementById('splitLoading');
if (!dropArea || !fileInput || !fileList || !form || !submitButton || !loading) {
return;
}
let selectedFile = null;
function displayPdfPageInfo(file, targetElement) {
const infoDiv = document.createElement('div');
infoDiv.className = 'pdf-info mt-2';
const infoText = document.createElement('small');
infoText.className = 'text-muted';
const infoIcon = document.createElement('i');
infoIcon.className = 'fas fa-info-circle';
infoText.appendChild(infoIcon);
infoText.appendChild(document.createTextNode(` 文件大小：${PdfApp.formatFileSize(file.size)}`));
infoDiv.appendChild(infoText);
const oldInfo = targetElement.querySelector('.pdf-info');
if (oldInfo) {
oldInfo.remove();
}
targetElement.appendChild(infoDiv);
}
function displaySelectedFile() {
fileList.innerHTML = '';
if (!selectedFile) {
submitButton.disabled = true;
return;
}
const fileItem = PdfApp.createFileItem(selectedFile, removeSelectedFile);
fileList.appendChild(fileItem);
submitButton.disabled = false;
}
function removeSelectedFile() {
selectedFile = null;
fileInput.value = '';
displaySelectedFile();
}
fileInput.addEventListener('change', function(event) {
selectedFile = event.target.files[0] || null;
displaySelectedFile();
if (selectedFile) {
displayPdfPageInfo(selectedFile, fileList);
}
});
PdfApp.bindDragAndDrop(dropArea, function(event) {
const files = Array.from(event.dataTransfer.files).filter(function(file) {
return file.type === 'application/pdf';
});
if (!files.length) {
alert('请拖拽PDF文件');
return;
}
selectedFile = files[0];
fileInput.files = PdfApp.createFileList([selectedFile]);
displaySelectedFile();
displayPdfPageInfo(selectedFile, fileList);
});
PdfApp.bindRadioToggle('split_type', {
range: 'rangeOptions',
group: 'groupOptions',
extract: 'extractOptions'
});
form.addEventListener('submit', function(event) {
event.preventDefault();
if (!selectedFile) {
alert('请选择一个PDF文件');
return;
}
loading.style.display = 'block';
submitButton.disabled = true;
const formData = new FormData();
formData.append('pdf_file', selectedFile);
const splitType = document.querySelector('input[name="split_type"]:checked').value;
formData.append('split_type', splitType);
if (splitType === 'range') {
const ranges = document.getElementById('ranges').value;
if (!ranges) {
alert('请输入页面范围');
loading.style.display = 'none';
submitButton.disabled = false;
return;
}
formData.append('ranges', ranges);
} else if (splitType === 'group') {
formData.append('pages_per_group', document.getElementById('pages_per_group').value);
} else if (splitType === 'extract') {
const pageNumbers = document.getElementById('page_numbers').value;
if (!pageNumbers) {
alert('请输入要提取的页码');
loading.style.display = 'none';
submitButton.disabled = false;
return;
}
formData.append('page_numbers', pageNumbers);
}
fetch('/split-pdf', {
method: 'POST',
body: formData
})
.then(function(response) {
if (response.ok) {
return response.blob();
}
return response.json().then(function(err) {
throw new Error(err.error || '分割失败');
});
})
.then(function(blob) {
const filename = blob.type === 'application/zip' ? 'split_pdf_files.zip' : 'extracted_page.pdf';
PdfApp.downloadBlob(blob, filename);
removeSelectedFile();
})
.catch(function(error) {
console.error('Error:', error);
alert('分割失败: ' + error.message);
})
.finally(function() {
loading.style.display = 'none';
submitButton.disabled = false;
});
});
};
})(window);
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