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+# Fisheye Package — Developer Notes
+
+## Gallery view template dispatch
+`view.php` → `display_fisheye_gallery_inc.php` → `$gContent->getRenderTemplate()` returns
+`bitpackage:fisheye/view_gallery.tpl`, which dispatches to:
+
+```
+gallery_views/{layout}/fisheye_{layout}_inc.tpl
+```
+
+Active layouts and their inc files:
+- `galleriffic` — `fisheye_galleriffic_inc.tpl` (dispatcher) → `_1.tpl` / `_2.tpl` / `_5.tpl`
+  by `$gContent->mInfo.galleriffic_style`
+- `auto_flow` — `fisheye_auto_flow_inc.tpl`
+- `fixed_grid` — `fisheye_fixed_grid_inc.tpl` (inc2/inc3 deleted — superseded)
+- `matteo` — `fisheye_matteo_inc.tpl`
+- `position_number` — `fisheye_position_number_inc.tpl`
+- `simple_list` — `fisheye_simple_list_inc.tpl`
+
+## Standard header pattern
+Each gallery view inc uses the shared include pattern (matching stock/contact):
+
+```smarty
+<div class="display fisheye">
+<header>
+    {include file="bitpackage:fisheye/gallery_icons_inc.tpl"}
+    <h1>{$gContent->getTitle()|escape}</h1>
+    {include file="bitpackage:fisheye/gallery_breadcrumb_inc.tpl"}
+</header>
+```
+
+- `gallery_icons_inc.tpl` — floaticon action icons (download, edit, add image, delete)
+- `gallery_breadcrumb_inc.tpl` — `<small>` breadcrumb trail; owner link shown to users
+  with update permission; ancestors from `getBreadcrumbLinks(1)`
+- `gallery_nav.tpl` — prev/next image navigation only (breadcrumbs were removed from here)
+
+Do NOT use `<div class="header">` — the merg theme blue background applies only to `<header>`.
+Do NOT add a `container` class to the outer div — the Bitweaver layout already provides one.
+
+## Data / description blocks
+Fisheye gallery data is **plain text** (not wiki/rich text). Use `data|escape`, never
+`getParsedData()`. The description section sits between `<header>` and the main body:
+
+```smarty
+{if $gContent->mInfo.data && $gContent->getPreference('show_description') ne 'n'}
+<section class="body">
+    <p>{$gContent->mInfo.data|escape}</p>
+</section>
+{/if}
+```
+
+## fixed_grid cols_per_page
+`$cols_per_page` is NOT a Smarty variable — read it from `$gContent->mInfo.cols_per_page`.
+Stored in `fisheye_gallery` table; edited via gallery edit form.
+
+```smarty
+{assign var="cols" value=$gContent->mInfo.cols_per_page|default:4}
+{assign var="tdWidth" value="`100/$cols`"}
+<table class="thumbnailblock" style="width:100%">
+```
+
+## PDF viewer — search/findbar
+`liberty/templates/mime/pdf/view.tpl` passes `?highlight=term` from `view_image.php`
+into the pdfjs viewer URL hash:
+
+```
+viewer.html?file={url}#zoom=page-width&search={highlight}
+```
+
+Standard pdfjs handles `#search=` via `findfromurlhash` but only highlights silently —
+it does NOT open the findbar UI. A local patch in `themes/js/pdfjs-5.2.133/web/viewer.mjs`
+adds the open call at the hash-parsing point (search for `params.has("search")`):
+
+```javascript
+if (query) {
+    PDFViewerApplication.findBar.open();
+    PDFViewerApplication.findBar.findField.value = query;
+}
+```
+
+**This patch must be re-applied after any pdfjs version upgrade.**
+
+## simple_list feature flags
+Optional columns gated on kernel_config features:
+- `fisheye_item_list_date` / `fisheye_item_list_creator` — Uploaded / by columns
+- `fisheye_item_list_size` — Size/Duration column
+- `fisheye_item_list_hits` — Downloads column
+- `fisheye_item_list_name` — filename/mime shown below title in name column
+- `fisheye_item_list_desc` — (unused in current template; data always shown)