feat: support youtube playlist iframe (#968)

Emile Bangma

2024-03-06 e13cafe070885b0bc5c2642324342a8e957006b2

feat: support youtube playlist iframe (#968)

* feat: support youtube playlist iframe

* chore: updated Youtube embed documentation to include playlists

 docs/plugins/ObsidianFlavoredMarkdown.md

@@ -20,7 +20,7 @@
- `parseArrows`: If `true` (default), transforms arrow symbols into their HTML character equivalents.
- `parseBlockReferences`: If `true` (default), handles block references, linking to specific content blocks.
- `enableInHtmlEmbed`: If `true`, allows embedding of content directly within HTML. Defaults to `false`.
- `enableYouTubeEmbed`: If `true` (default), enables the embedding of YouTube videos using external image Markdown syntax.
- `enableYouTubeEmbed`: If `true` (default), enables the embedding of YouTube videos and playlists using external image Markdown syntax.
- `enableVideoEmbed`: If `true` (default), enables the embedding of video files.
- `enableCheckbox`: If `true`, adds support for interactive checkboxes in content. Defaults to `false`.


 quartz/plugins/transformers/ofm.ts

@@ -123,6 +123,7 @@
)
const blockReferenceRegex = new RegExp(/\^([-_A-Za-z0-9]+)$/, "g")
const ytLinkRegex = /^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/
const ytPlaylistLinkRegex = /[?&]list=([^#?&]*)/
const videoExtensionRegex = new RegExp(/\.(mp4|webm|ogg|avi|mov|flv|wmv|mkv|mpg|mpeg|3gp|m4v)$/)
const wikilinkImageEmbedRegex = new RegExp(
  /^(?<alt>(?!^\d*x?\d*$).*?)?(\|?\s*?(?<width>\d+)(x(?<height>\d+))?)?$/,
@@ -574,7 +575,9 @@
              if (node.tagName === "img" && typeof node.properties.src === "string") {
                const match = node.properties.src.match(ytLinkRegex)
                const videoId = match && match[2].length == 11 ? match[2] : null
                const playlistId = node.properties.src.match(ytPlaylistLinkRegex)?.[1]
                if (videoId) {
                  // YouTube video (with optional playlist)
                  node.tagName = "iframe"
                  node.properties = {
                    class: "external-embed",
@@ -582,7 +585,20 @@
                    frameborder: 0,
                    width: "600px",
                    height: "350px",
                    src: `https://www.youtube.com/embed/${videoId}`,
                    src: playlistId
                      ? `https://www.youtube.com/embed/${videoId}?list=${playlistId}`
                      : `https://www.youtube.com/embed/${videoId}`,
                  }
                } else if (playlistId) {
                  // YouTube playlist only.
                  node.tagName = "iframe"
                  node.properties = {
                    class: "external-embed",
                    allow: "fullscreen",
                    frameborder: 0,
                    width: "600px",
                    height: "350px",
                    src: `https://www.youtube.com/embed/videoseries?list=${playlistId}`,
                  }
                }
              }