Add EXIF mouse-over tooltip to the normal image view

The details view already showed a title="" hover summary (camera, aperture,
ISO, shutter, date) on its image; the normal image view did not. Wire the
same tooltip into view.tmpl:

- render_view_page now computes the EXIF tooltip via photo_exif_tooltip_text
  (reusing the shared identify cache, so no extra ImageMagick work) and passes
  it as the exif_tooltip context var.
- exif_tooltip is now a required render field for the view template too.
- view.tmpl adds the title="" attribute to its <img> when the summary is
  non-empty, mirroring details.tmpl (no title when there is no EXIF).
- Tests: extend the EXIF render test to assert the view image carries the same
  tooltip, and update the required-context-vars expectation for view.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/bin/shuriken b/bin/shuriken
index c958ee1..8fafb3b 100755
--- a/bin/shuriken
+++ b/bin/shuriken
@@ -619,7 +619,7 @@ declare -ra TEMPLATE_RENDER_FIELD_SPECS=(
     'render_current_date_text|current_date_html|||'
     'render_enter_page_html|context_html|enter_page|enter_page|splash'
     'render_exif_details_html|context_raw|exif_details|exif_details|details'
-    'render_exif_tooltip_html|context_html|exif_tooltip|exif_tooltip|details'
+    'render_exif_tooltip_html|context_html|exif_tooltip|exif_tooltip|details view'
     'render_height_html|config_html|HEIGHT||'
     'render_html_dir_html|context_html|html_dir|html_dir|*'
     'render_maxpreviews_html|config_html|MAXPREVIEWS||'
@@ -1605,6 +1605,7 @@ render_view_page() {
     local -r preview_num="$1"; shift
     local -r photo_file="$1"; shift
     local animation_class
+    local exif_tooltip_text
 
     template header "$page_num-$preview_num.html" \
         html_dir "$html_dir" \
@@ -1614,6 +1615,12 @@ render_view_page() {
         show_header_bar 'no'
 
     animation_class=$(random_animation_css_class fast "$photo_file")
+    # Reuse the same EXIF tooltip as the details page so hovering the image in
+    # the normal view shows the camera/exposure summary (reads the shared
+    # identify cache, so no extra ImageMagick work).
+    exif_tooltip_text=$(
+        photo_exif_tooltip_text "$photo_file" "$INCOMING_DIR/$photo_file"
+    )
     template view "$page_num-$preview_num.html" \
         html_dir "$html_dir" \
         backhref "$backhref" \
@@ -1621,7 +1628,8 @@ render_view_page() {
         page_num "$page_num" \
         preview_num "$preview_num" \
         photo "$photo_file" \
-        animation_class "$animation_class"
+        animation_class "$animation_class" \
+        exif_tooltip "$exif_tooltip_text"
     template footer "$page_num-$preview_num.html" \
         html_dir "$html_dir" \
         backhref "$backhref" \