feat(editor): 增加MD文件预览功能 - #522
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- Add MarkdownPreview widget (QTextBrowser + QTextDocument::setMarkdown, Qt >= 6.5) - Show live side-by-side preview automatically for .md/.markdown files - Add checkable 'Markdown preview' menu action and Ctrl+Shift+M shortcut - Sync action state with current tab and save-as path changes - Update AT-SPI expected names and add unit tests
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: humanfans The full list of commands accepted by this bot can be found here. DetailsNeeds approval from an approver in each of these files:Approvers can indicate their approval by writing |
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Hi @humanfans. Thanks for your PR. 😃 |
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Reviewer's GuideIntroduce a Qt-based MarkdownPreview widget and wire it into the editor/window so that markdown files can be previewed side-by-side, with menu/shortcut control, accessibility naming, and unit tests. Sequence diagram for toggling Markdown preview in the editorsequenceDiagram
actor User
participant Window
participant EditWrapper
participant MarkdownPreview
User->>Window: markdownPreviewAction.triggered / toggleMarkdownPreview
Window->>Window: toggleMarkdownPreview()
Window->>EditWrapper: currentWrapper()
alt wrapper == nullptr or !MarkdownPreview::isSupported() or !MarkdownPreview::isMarkdownFile(filePath)
Window-->>User: [no-op]
else validMarkdownPreview
Window->>EditWrapper: filePath()
Window->>EditWrapper: isMarkdownPreviewVisible()
Window->>EditWrapper: setMarkdownPreviewVisible(!isMarkdownPreviewVisible)
Note over EditWrapper,MarkdownPreview: setMarkdownPreviewVisible triggers MarkdownPreview::updatePreview
Window->>Window: updateMarkdownPreviewActionState()
Window->>EditWrapper: currentWrapper()
Window->>MarkdownPreview: isMarkdownFile(wrapper->filePath())
Window->>Window: m_markdownPreviewAction->setEnabled(isMarkdown)
Window->>Window: m_markdownPreviewAction->setChecked(isMarkdown && wrapper->isMarkdownPreviewVisible())
end
EditWrapper->>MarkdownPreview: updatePreview(m_pTextEdit->toPlainText())
EditWrapper->>MarkdownPreview: [on QPlainTextEdit::textChanged when visible] updatePreview(m_pTextEdit->toPlainText())
EditWrapper->>MarkdownPreview: [on updatePath for .md/.markdown] setMarkdownPreviewVisible(isMarkdownFile(file))
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2 participants
Summary by Sourcery
Add an optional, accessible markdown preview pane to the editor with menu and shortcut controls, active for markdown files when supported by the Qt version.
New Features:
Enhancements:
Tests: