Add wrapped side-by-side renderer #563
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This is a preparation commit for a new wrapped side-by-side diff renderer. The new diff view uses four-column tables. Adding colspan allows block headers to span the full width of the table, ensuring they are formatted correctly. This change is backward-compatible. Existing templates will not be affected because the colspan attribute defaults to 1 and is optional.
This commit introduces wrapped side-by-side as the third diff mode. The wrapped side-by-side style requires that corresponding old and new lines have the same height, even when only one side of a line wraps. To achieve this without JavaScript, lines are placed on the same row within an HTML table. Because this approach results in a fundamentally different HTML structure from the current synchronized scrolling mode, it was implemented as a new, independent renderer.
This commit adds tests for the new wrapped side-by-side renderer. The tests are based on and adapted from the existing test suite for the synchronized scroll side-by-side mode.
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Thank you for creating such a great project and welcoming community! It encouraged me to make my first contribution.
This pull request introduces wrapped side-by-side as the third diff mode. Fixes #99
The changes in this PR are broken down into three commits:
colspanto generic block headers for wrapped side-by-side mode.Changes are tested with:
npm startand viewing some PRsnpm run validateThe wrapped side-by-side diff style requires that corresponding old and new lines have the same height, even when text on only one side wraps.
To accomplish this without using JavaScript, I chose to place the lines on the same row within an HTML table.
Since this approach creates a fundamentally different HTML structure from the current synchronized-scrolling mode,
implementing it as a new, independent renderer was a cleaner and more maintainable solution than modifying the existing code.
I'd appreciate your feedback on this.