93 lines
3.7 KiB
Python
93 lines
3.7 KiB
Python
# SPDX-FileCopyrightText: 2025 QinHan
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# SPDX-License-Identifier: MPL-2.0
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import html
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from dataclasses import dataclass
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from io import BytesIO
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from pptx import Presentation
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from docutranslate.exporter.base import ExporterConfig
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from docutranslate.exporter.pptx.base import PPTXExporter
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from docutranslate.ir.document import Document
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@dataclass
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class PPTX2HTMLExporterConfig(ExporterConfig):
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cdn: bool = True
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include_hidden_slides: bool = False
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class PPTX2HTMLExporter(PPTXExporter):
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def __init__(self, config: PPTX2HTMLExporterConfig = None):
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config = config or PPTX2HTMLExporterConfig()
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super().__init__(config=config)
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self.cdn = config.cdn
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self.include_hidden_slides = getattr(config, 'include_hidden_slides', False)
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def export(self, document: Document) -> Document:
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# 使用 python-pptx 加载二进制内容
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prs = Presentation(BytesIO(document.content))
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html_parts = []
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# 添加基础的 HTML 头部
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html_parts.append("<!DOCTYPE html><html><head><meta charset='utf-8'>")
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html_parts.append("<style>")
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html_parts.append(".slide { border: 1px solid #ccc; margin: 20px auto; padding: 20px; max-width: 800px; }")
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html_parts.append(".slide-title { font-size: 1.5em; font-weight: bold; margin-bottom: 10px; }")
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html_parts.append("</style>")
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html_parts.append("</head><body>")
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for i, slide in enumerate(prs.slides):
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# 处理隐藏幻灯片的逻辑
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# 注意: python-pptx 的 slide 对象可能没有 hidden 属性，取决于版本，
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# 若需要严格过滤需检查 slide.element.get('show') 等，这里做基础遍历。
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slide_html = []
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slide_html.append(f'<div class="slide" id="slide-{i + 1}">')
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# 1. 尝试提取并处理标题
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title = slide.shapes.title
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if title and title.has_text_frame and title.text.strip():
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escaped_title = html.escape(title.text)
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slide_html.append(f'<div class="slide-title">{escaped_title}</div>')
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# 2. 遍历其他形状提取文本
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for shape in slide.shapes:
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# 跳过已经处理过的标题
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if shape == title:
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continue
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if hasattr(shape, "has_text_frame") and shape.has_text_frame:
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for paragraph in shape.text_frame.paragraphs:
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text = paragraph.text.strip()
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if text:
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# 简单处理：将每个段落作为 p 标签
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# 进阶处理可以根据 paragraph.level 处理列表缩进
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escaped_text = html.escape(text)
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slide_html.append(f'<p>{escaped_text}</p>')
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# 如果需要处理表格 (Table)
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if shape.has_table:
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slide_html.append('<table border="1" style="border-collapse: collapse; width: 100%;">')
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for row in shape.table.rows:
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slide_html.append('<tr>')
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for cell in row.cells:
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cell_text = html.escape(cell.text_frame.text) if cell.text_frame else ""
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slide_html.append(f'<td style="padding: 5px;">{cell_text}</td>')
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slide_html.append('</tr>')
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slide_html.append('</table>')
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slide_html.append('</div>')
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html_parts.append("".join(slide_html))
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html_parts.append("</body></html>")
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full_html = "\n".join(html_parts)
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return Document.from_bytes(
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content=full_html.encode("utf-8"),
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suffix=".html",
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stem=document.stem
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) |