1 files changed, 67 insertions, 0 deletions
diff --git a/src/content/dependencies/generatePageTitleText.js b/src/content/dependencies/generatePageTitleText.js
new file mode 100644
index 00000000..5482ca91
--- /dev/null
+++ b/src/content/dependencies/generatePageTitleText.js
@@ -0,0 +1,67 @@
+import striptags from 'striptags';
+
+export default {
+  sprawl: ({wikiInfo}) => ({wikiInfo}),
+
+  data: (sprawl) => ({
+    wikiName:
+      sprawl.wikiInfo.nameShort,
+  }),
+
+  slots: {
+    title: {
+      type: 'html',
+      mutable: false,
+    },
+
+    showWikiNameInTitle: {
+      validate: v => v.is(true, false, 'auto'),
+      default: 'auto',
+    },
+
+    subtitle: {
+      type: 'html',
+      mutable: false,
+    },
+  },
+
+  generate: (data, slots, {html, language}) =>
+    language.encapsulate('misc.pageTitle', workingCapsule => {
+      const workingOptions = {};
+
+      // Slightly jank: The output of striptags is, of course, a string,
+      // and as far as language.formatString() is concerned, that means
+      // it needs to be sanitized - including turning ampersands into
+      // &amp;'s. But the title is already HTML that has implicitly been
+      // sanitized, however it got here, and includes HTML entities that
+      // are properly escaped. Those need to get included as they are,
+      // so we wrap the title in a tag and pass it off as good to go.
+      workingOptions.title =
+        html.tags([
+striptags(slots.title.toString()),
+        ]);
+
+      if (!html.isBlank(slots.subtitle)) {
+        // Same shenanigans here, as far as wrapping striptags goes.
+        workingCapsule += '.withSubtitle';
+        workingOptions.subtitle =
+          html.tags([
+            striptags(slots.subtitle.toString()),
+          ]);
+      }
+
+      const showWikiName =
+        (slots.showWikiNameInTitle === true
+? true
+       : slots.showWikiNameInTitle === 'auto'
+? html.isBlank(slots.subtitle)
+: false);
+
+      if (showWikiName) {
+        workingCapsule += '.withWikiName';
+        workingOptions.wikiName = data.wikiName;
+      }
+
+      return language.$(workingCapsule, workingOptions);
+    }),
+};
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