From ff3c5b28bdc5e1206cc4a16c9a036e66a08b56b0 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 16:35:47 -0500
Subject: [PATCH 1/8] Move normalize-scanline-order implementation from
 images.bitmap to images Add upside-down? slot to image tuple Update cap for
 recent changes

---
 basis/images/bitmap/bitmap.factor |  6 +-----
 basis/images/images.factor        | 15 ++++++++++-----
 basis/images/tiff/tiff.factor     |  2 +-
 extra/cap/cap.factor              | 27 ++++++++++++++-------------
 4 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/basis/images/bitmap/bitmap.factor b/basis/images/bitmap/bitmap.factor
index 88eb984488..cf16df7d82 100755
--- a/basis/images/bitmap/bitmap.factor
+++ b/basis/images/bitmap/bitmap.factor
@@ -108,11 +108,6 @@ M: bitmap-image load-image* ( path bitmap -- bitmap )
     load-bitmap-data process-bitmap-data
     fill-image-slots ;
 
-M: bitmap-image normalize-scan-line-order
-    dup dim>> '[
-        _ first 4 * <sliced-groups> reverse concat
-    ] change-bitmap ;
-
 MACRO: (nbits>bitmap) ( bits -- )
     [ -3 shift ] keep '[
         bitmap-image new
@@ -121,6 +116,7 @@ MACRO: (nbits>bitmap) ( bits -- )
             swap >>width
             swap array-copy [ >>bitmap ] [ >>color-index ] bi
             _ >>bit-count fill-image-slots
+            t >>upside-down?
     ] ;
 
 : bgr>bitmap ( array height width -- bitmap )
diff --git a/basis/images/images.factor b/basis/images/images.factor
index 82576774f4..cb44825e62 100644
--- a/basis/images/images.factor
+++ b/basis/images/images.factor
@@ -27,7 +27,7 @@ R16G16B16 R32G32B32 R16G16B16A16 R32G32B32A32 ;
         { R32G32B32A32 [ 16 ] }
     } case ;
 
-TUPLE: image dim component-order bitmap ;
+TUPLE: image dim component-order upside-down? bitmap ;
 
 : <image> ( -- image ) image new ; inline
 
@@ -82,11 +82,16 @@ M: ARGB normalize-component-order*
 M: ABGR normalize-component-order*
     drop ARGB>RGBA 4 BGR>RGB ;
 
-GENERIC: normalize-scan-line-order ( image -- image )
-
-M: image normalize-scan-line-order ;
+: normalize-scan-line-order ( image -- image )
+    dup upside-down?>> [
+        dup dim>> first 4 * '[
+            _ <groups> reverse concat
+        ] change-bitmap
+        f >>upside-down?
+    ] when ;
 
 : normalize-image ( image -- image )
     [ >byte-array ] change-bitmap
     normalize-component-order
-    normalize-scan-line-order ;
+    normalize-scan-line-order
+    RGBA >>component-order ;
diff --git a/basis/images/tiff/tiff.factor b/basis/images/tiff/tiff.factor
index a50ac0cad9..2ea1b08e20 100755
--- a/basis/images/tiff/tiff.factor
+++ b/basis/images/tiff/tiff.factor
@@ -503,7 +503,7 @@ ERROR: unknown-component-order ifd ;
 : ifd>image ( ifd -- image )
     {
         [ [ image-width find-tag ] [ image-length find-tag ] bi 2array ]
-        [ ifd-component-order ]
+        [ ifd-component-order f ]
         [ bitmap>> ]
     } cleave tiff-image boa ;
 
diff --git a/extra/cap/cap.factor b/extra/cap/cap.factor
index 1f62441028..64696759bb 100644
--- a/extra/cap/cap.factor
+++ b/extra/cap/cap.factor
@@ -1,30 +1,31 @@
 ! Copyright (C) 2008 Doug Coleman, Joe Groff.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors arrays byte-arrays kernel math namespaces
-opengl.gl sequences math.vectors ui images.bitmap images.viewer
+opengl.gl sequences math.vectors ui images images.viewer
 models ui.gadgets.worlds ui.gadgets fry alien.syntax ;
 IN: cap
 
 : screenshot-array ( world -- byte-array )
-    dim>> [ first 3 * 4 align ] [ second ] bi * <byte-array> ;
+    dim>> [ first 4 * ] [ second ] bi * <byte-array> ;
 
 : gl-screenshot ( gadget -- byte-array )
     [
-        GL_BACK glReadBuffer
-        GL_PACK_ALIGNMENT 4 glPixelStorei
-        0 0
-    ] dip
-    [ dim>> first2 GL_BGR GL_UNSIGNED_BYTE ]
+        [
+            GL_BACK glReadBuffer
+            GL_PACK_ALIGNMENT 4 glPixelStorei
+            0 0
+        ] dip
+        dim>> first2 GL_RGBA GL_UNSIGNED_BYTE
+    ]
     [ screenshot-array ] bi
     [ glReadPixels ] keep ;
 
 : screenshot ( window -- bitmap )
-    [ gl-screenshot ]
-    [ dim>> first2 ] bi
-    bgr>bitmap ;
-
-: save-screenshot ( window path -- )
-    [ screenshot ] dip save-bitmap ;
+    [ <image> ] dip
+    [ gl-screenshot >>bitmap ] [ dim>> >>dim ] bi
+    RGBA >>component-order
+    t >>upside-down?
+    normalize-image ;
 
 : screenshot. ( window -- )
     [ screenshot <image-gadget> ] [ title>> ] bi open-window ; 

From 2f26d5f3dafff63264d052bf4c8ca873feac4a46 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 16:58:35 -0500
Subject: [PATCH 2/8] images.viewer can now display some un-normalized images

---
 basis/opengl/textures/textures.factor | 6 ++++--
 extra/images/viewer/viewer.factor     | 8 ++++----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/basis/opengl/textures/textures.factor b/basis/opengl/textures/textures.factor
index 79af9be48b..48cdafb837 100644
--- a/basis/opengl/textures/textures.factor
+++ b/basis/opengl/textures/textures.factor
@@ -11,14 +11,16 @@ IN: opengl.textures
 
 TUPLE: texture loc dim texture-coords texture display-list disposed ;
 
-<PRIVATE
-
 GENERIC: component-order>format ( component-order -- format type )
 
+M: RGB component-order>format drop GL_RGB GL_UNSIGNED_BYTE ;
+M: BGR component-order>format drop GL_BGR GL_UNSIGNED_BYTE ;
 M: RGBA component-order>format drop GL_RGBA GL_UNSIGNED_BYTE ;
 M: ARGB component-order>format drop GL_BGRA_EXT GL_UNSIGNED_INT_8_8_8_8_REV ;
 M: BGRA component-order>format drop GL_BGRA_EXT GL_UNSIGNED_BYTE ;
 
+<PRIVATE
+
 : repeat-last ( seq n -- seq' )
     over peek pad-tail concat ;
 
diff --git a/extra/images/viewer/viewer.factor b/extra/images/viewer/viewer.factor
index b920b60430..4eaa984953 100644
--- a/extra/images/viewer/viewer.factor
+++ b/extra/images/viewer/viewer.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2007 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors images images.loader io.pathnames kernel
-namespaces opengl opengl.gl sequences strings ui ui.gadgets
+USING: accessors images images.loader io.pathnames kernel namespaces
+opengl opengl.gl opengl.textures sequences strings ui ui.gadgets
 ui.gadgets.panes ui.render ;
 IN: images.viewer
 
@@ -12,8 +12,8 @@ M: image-gadget pref-dim*
 
 : draw-image ( image -- )
     0 0 glRasterPos2i 1.0 -1.0 glPixelZoom
-    [ dim>> first2 GL_RGBA GL_UNSIGNED_BYTE ]
-    [ bitmap>> ] bi glDrawPixels ;
+    [ dim>> first2 ] [ component-order>> component-order>format ] [ bitmap>> ] tri
+    glDrawPixels ;
 
 M: image-gadget draw-gadget* ( gadget -- )
     image>> draw-image ;

From ceafe8c69efe147123717f7329e29f50c0f2692a Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 16:59:15 -0500
Subject: [PATCH 3/8] Fix text rendering on top of transparent background

---
 basis/ui/pens/gradient/gradient.factor | 4 +++-
 basis/ui/pens/solid/solid.factor       | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/basis/ui/pens/gradient/gradient.factor b/basis/ui/pens/gradient/gradient.factor
index a137ae022b..485015b898 100644
--- a/basis/ui/pens/gradient/gradient.factor
+++ b/basis/ui/pens/gradient/gradient.factor
@@ -41,4 +41,6 @@ M: gradient draw-interior
         [ last-vertices>> gl-vertex-pointer ]
         [ last-colors>> gl-color-pointer ]
         [ colors>> draw-gradient ]
-    } cleave ;
\ No newline at end of file
+    } cleave ;
+
+M: gradient pen-background 2drop transparent ;
\ No newline at end of file
diff --git a/basis/ui/pens/solid/solid.factor b/basis/ui/pens/solid/solid.factor
index 32d400463e..950035e773 100644
--- a/basis/ui/pens/solid/solid.factor
+++ b/basis/ui/pens/solid/solid.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2009 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: kernel accessors opengl ui.pens ui.pens.caching ;
+USING: kernel accessors opengl math colors ui.pens ui.pens.caching ;
 IN: ui.pens.solid
 
 TUPLE: solid < caching-pen color interior-vertices boundary-vertices ;
@@ -29,4 +29,4 @@ M: solid draw-boundary
     (gl-rect) ;
 
 M: solid pen-background
-    nip color>> ;
\ No newline at end of file
+    nip color>> dup alpha>> 1 number= [ drop transparent ] unless ;
\ No newline at end of file

From fb8ee9fb1192cd9c0f3d32666f7323787872d6f6 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 16:59:33 -0500
Subject: [PATCH 4/8] Clicking in slides window requests focus

---
 extra/slides/slides.factor | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/extra/slides/slides.factor b/extra/slides/slides.factor
index 6a5b7ab816..752d0b3ffa 100755
--- a/extra/slides/slides.factor
+++ b/extra/slides/slides.factor
@@ -2,7 +2,7 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: arrays hashtables help.markup help.stylesheet io
 io.styles kernel math models namespaces sequences ui ui.gadgets
-ui.gadgets.books ui.gadgets.panes ui.gestures ui.pens.gradient ui.render
+ui.gadgets.books ui.gadgets.panes ui.gestures ui.pens.gradient
 parser accessors colors ;
 IN: slides
 
@@ -98,6 +98,7 @@ TUPLE: slides < book ;
     parse-definition strip-tease [ parsed ] each ; parsing
 
 \ slides H{
+    { T{ button-down } [ request-focus ] }
     { T{ key-down f f "DOWN" } [ next-page ] }
     { T{ key-down f f "UP" } [ prev-page ] }
 } set-gestures

From 3acd00b4038b0a8939ca037d68bb7cb22e455023 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 16:59:48 -0500
Subject: [PATCH 5/8] Fix tetris rendering

---
 extra/tetris/gl/gl.factor | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/extra/tetris/gl/gl.factor b/extra/tetris/gl/gl.factor
index 70300779b5..f8c901ff56 100644
--- a/extra/tetris/gl/gl.factor
+++ b/extra/tetris/gl/gl.factor
@@ -35,7 +35,7 @@ IN: tetris.gl
 : scale-board ( width height board -- )
     [ width>> ] [ height>> ] bi swapd [ / ] dup 2bi* 1 glScalef ;
 
-: (draw-tetris) ( width height tetris -- )
+: draw-tetris ( width height tetris -- )
     #! width and height are in pixels
     GL_MODELVIEW [
         {
@@ -44,7 +44,4 @@ IN: tetris.gl
             [ next-piece draw-next-piece ]
             [ current-piece draw-piece ]
         } cleave
-    ] do-matrix ;
-
-: draw-tetris ( width height tetris -- )
-    origin get [ (draw-tetris) ] with-translation ;
+    ] do-matrix ;
\ No newline at end of file

From 712711e86940497fe7793a5c39fcc12e2909b814 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 17:00:46 -0500
Subject: [PATCH 6/8] Replace png-gadget in otug-talk with icon gadget usage;
 convert PNG images to TIFF

---
 extra/otug-talk/2bi.png          | Bin 6719 -> 0 bytes
 extra/otug-talk/2bi.tiff         | Bin 0 -> 11744 bytes
 extra/otug-talk/2bi_at.png       | Bin 7674 -> 0 bytes
 extra/otug-talk/2bi_at.tiff      | Bin 0 -> 13728 bytes
 extra/otug-talk/2bi_star.png     | Bin 6404 -> 0 bytes
 extra/otug-talk/2bi_star.tiff    | Bin 0 -> 13924 bytes
 extra/otug-talk/bi.png           | Bin 4837 -> 0 bytes
 extra/otug-talk/bi.tiff          | Bin 0 -> 8872 bytes
 extra/otug-talk/bi_at.png        | Bin 4660 -> 0 bytes
 extra/otug-talk/bi_at.tiff       | Bin 0 -> 8848 bytes
 extra/otug-talk/bi_star.png      | Bin 4415 -> 0 bytes
 extra/otug-talk/bi_star.tiff     | Bin 0 -> 9784 bytes
 extra/otug-talk/otug-talk.factor |  53 ++++++++-----------------------
 13 files changed, 13 insertions(+), 40 deletions(-)
 delete mode 100644 extra/otug-talk/2bi.png
 create mode 100644 extra/otug-talk/2bi.tiff
 delete mode 100644 extra/otug-talk/2bi_at.png
 create mode 100644 extra/otug-talk/2bi_at.tiff
 delete mode 100644 extra/otug-talk/2bi_star.png
 create mode 100644 extra/otug-talk/2bi_star.tiff
 delete mode 100644 extra/otug-talk/bi.png
 create mode 100644 extra/otug-talk/bi.tiff
 delete mode 100644 extra/otug-talk/bi_at.png
 create mode 100644 extra/otug-talk/bi_at.tiff
 delete mode 100644 extra/otug-talk/bi_star.png
 create mode 100644 extra/otug-talk/bi_star.tiff

diff --git a/extra/otug-talk/2bi.png b/extra/otug-talk/2bi.png
deleted file mode 100644
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diff --git a/extra/otug-talk/otug-talk.factor b/extra/otug-talk/otug-talk.factor
index 16ee2b740b..2ce307ce20 100644
--- a/extra/otug-talk/otug-talk.factor
+++ b/extra/otug-talk/otug-talk.factor
@@ -1,41 +1,14 @@
 ! Copyright (C) 2008 Slava Pestov.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: slides help.markup math arrays hashtables namespaces
-sequences kernel sequences parser memoize io.encodings.binary
-locals kernel.private tools.vocabs.browser assocs quotations
- tools.vocabs tools.annotations tools.crossref
-help.topics math.functions compiler.tree.optimizer
-compiler.cfg.optimizer fry
-ui.gadgets.panes tetris tetris.game combinators generalizations
-multiline sequences.private ;
+USING: slides help.markup math arrays hashtables namespaces sequences
+kernel sequences parser memoize io.encodings.binary locals
+kernel.private tools.vocabs.browser assocs quotations tools.vocabs
+tools.annotations tools.crossref help.topics math.functions
+compiler.tree.optimizer compiler.cfg.optimizer fry ui.gadgets.panes
+tetris tetris.game combinators generalizations multiline
+sequences.private ;
 IN: otug-talk
 
-USING: cairo cairo.ffi cairo.gadgets accessors
-io.backend ui.gadgets ;
-
-TUPLE: png-gadget < cairo-gadget surface ;
-
-: <png-gadget> ( file -- gadget )
-    png-gadget new-gadget
-    swap normalize-path
-    cairo_image_surface_create_from_png >>surface ; inline
-
-M: png-gadget pref-dim* ( gadget -- )
-    surface>>
-    [ cairo_image_surface_get_width ]
-    [ cairo_image_surface_get_height ]
-    bi 2array ;
-
-M: png-gadget render-cairo* ( gadget -- )
-    cr swap surface>> 0 0 cairo_set_source_surface
-    cr cairo_paint ;
-
-M: png-gadget ungraft* ( gadget -- )
-    surface>> cairo_surface_destroy ;
-
-: $bitmap ( element -- )
-    [ first <png-gadget> gadget. ] ($block) ;
-
 : $tetris ( element -- )
     drop [ <default-tetris> <tetris-gadget> gadget. ] ($block) ;
 
@@ -105,11 +78,11 @@ CONSTANT: otug-slides
     }
     { $slide "Data flow combinators - cleave family"
         { { $link bi } ", " { $link tri } ", " { $link cleave } }
-        { $bitmap "resource:extra/otug-talk/bi.png" }
+        { $image "resource:extra/otug-talk/bi.tiff" }
     }
     { $slide "Data flow combinators - cleave family"
         { { $link 2bi } ", " { $link 2tri } ", " { $link 2cleave } }
-        { $bitmap "resource:extra/otug-talk/2bi.png" }
+        { $image "resource:extra/otug-talk/2bi.tiff" }
     }
     { $slide "Data flow combinators"
         "First, let's define a data type:"
@@ -128,19 +101,19 @@ CONSTANT: otug-slides
     }
     { $slide "Data flow combinators - spread family"
         { { $link bi* } ", " { $link tri* } ", " { $link spread } }
-        { $bitmap "resource:extra/otug-talk/bi_star.png" }
+        { $image "resource:extra/otug-talk/bi_star.tiff" }
     }
     { $slide "Data flow combinators - spread family"
         { { $link 2bi* } }
-        { $bitmap "resource:extra/otug-talk/2bi_star.png" }
+        { $image "resource:extra/otug-talk/2bi_star.tiff" }
     }
     { $slide "Data flow combinators - apply family"
         { { $link bi@ } ", " { $link tri@ } ", " { $link napply } }
-        { $bitmap "resource:extra/otug-talk/bi_at.png" }
+        { $image "resource:extra/otug-talk/bi_at.tiff" }
     }
     { $slide "Data flow combinators - apply family"
         { { $link 2bi@ } }
-        { $bitmap "resource:extra/otug-talk/2bi_at.png" }
+        { $image "resource:extra/otug-talk/2bi_at.tiff" }
     }
     { $slide "Shuffle words"
         "When data flow combinators are not enough"

From b3f09a9aed8a29602046e4180943639c5f017530 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 17:28:17 -0500
Subject: [PATCH 7/8] Check for words which are not classes but have a
 $class-description element anyway

---
 basis/help/lint/lint.factor | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/basis/help/lint/lint.factor b/basis/help/lint/lint.factor
index 57f64459c8..2281c295c3 100755
--- a/basis/help/lint/lint.factor
+++ b/basis/help/lint/lint.factor
@@ -132,6 +132,11 @@ SYMBOL: vocabs-quot
         [ check-descriptions ]
     } cleave ;
 
+: check-class-description ( word element -- )
+    [ class? not ]
+    [ { $class-description } swap elements empty? not ] bi* and
+    [ "A word that is not a class has a $class-description" throw ] when ;
+
 : all-word-help ( words -- seq )
     [ word-help ] filter ;
 
@@ -153,7 +158,8 @@ M: help-error error.
         dup '[
             _ dup word-help
             [ check-values ]
-            [ nip [ check-nulls ] [ check-see-also ] [ check-markup ] tri ] 2bi
+            [ check-class-description ]
+            [ nip [ check-nulls ] [ check-see-also ] [ check-markup ] tri ] 2tri
         ] check-something
     ] [ drop ] if ;
 

From 16ddc461b4c2dbb528a785dc0a5dc19cf3db5f0b Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Tue, 10 Mar 2009 17:28:34 -0500
Subject: [PATCH 8/8] Document ui.gadgets.glass and fix help lint failures in
 UI docs

---
 basis/ui/gadgets/glass/glass-docs.factor      | 55 +++++++++++++++++++
 basis/ui/gadgets/glass/glass.factor           |  2 +-
 basis/ui/gadgets/menus/menus-docs.factor      |  2 +-
 .../gadgets/status-bar/status-bar-docs.factor |  2 +-
 basis/ui/ui-docs.factor                       |  1 +
 5 files changed, 59 insertions(+), 3 deletions(-)
 create mode 100644 basis/ui/gadgets/glass/glass-docs.factor

diff --git a/basis/ui/gadgets/glass/glass-docs.factor b/basis/ui/gadgets/glass/glass-docs.factor
new file mode 100644
index 0000000000..bd9028d414
--- /dev/null
+++ b/basis/ui/gadgets/glass/glass-docs.factor
@@ -0,0 +1,55 @@
+IN: ui.gadgets.glass
+USING: help.markup help.syntax ui.gadgets math.rectangles ;
+
+HELP: show-glass
+{ $values { "owner" gadget } { "child" gadget } { "visible-rect" rect } }
+{ $description "Displays " { $snippet "child" } " in the glass layer of the window containing " { $snippet "owner" } "."
+  $nl
+  "The child's position is calculated with a heuristic:"
+  { $list
+    "The child must fit inside the window"
+    { "The child must not obscure " { $snippet "visible-rect" } ", which is a rectangle whose origin is relative to " { $snippet "owner" } }
+    { "The child must otherwise be as close as possible to the edges of " { $snippet "visible-rect" } }
+  }
+  "For example, when displaying a menu, " { $snippet "visible-rect" } " is a single point at the mouse location, and when displaying a completion popup, " { $snippet "visible-rect" } " contains the bounds of the text element being completed."
+} ;
+
+HELP: hide-glass
+{ $values { "child" gadget } }
+{ $description "Hides a gadget displayed in a glass layer." } ;
+
+HELP: hide-glass-hook
+{ $values { "gadget" gadget } }
+{ $description "Called when a gadget displayed in a glass layer is hidden. The gadget can perform cleanup tasks here." } ;
+
+HELP: pass-to-popup
+{ $values { "gesture" "a gesture" } { "owner" "the popup's owner" } { "?" "a boolean" } }
+{ $description "Resends the gesture to the popup displayed by " { $snippet "owner" } ". The owner must have a " { $slot "popup" } " slot. Outputs " { $link f } " if the gesture was handled, " { $link t } " otherwise." } ;
+
+HELP: show-popup
+{ $values { "owner" gadget } { "popup" gadget } { "visible-rect" rect } }
+{ $description "Displays " { $snippet "popup" } " in the glass layer of the window containing " { $snippet "owner" } " as a popup."
+  $nl
+  "This word differs from " { $link show-glass } " in two respects:"
+  { $list
+    { "The popup is stored in the owner's " { $slot "popup" } " slot; the owner can call " { $link pass-to-popup } " to pass keyboard gestures to the popup" }
+    { "Pressing " { $snippet "ESC" } " with the popup visible will hide it" }
+  }
+} ;
+
+ARTICLE: "ui.gadgets.glass" "Glass layers"
+"The " { $vocab-link "ui.gadgets.glass" } " vocabulary implements support for displaying gadgets in the glass layer of a window. The gadget can be positioned arbitrarily within the glass layer, and while it is visible, mouse clicks outside of the glass layer are intercepted to hide the glass layer. Multiple glass layers can be active at a time; they behave as if stacked on top of each other."
+$nl
+"This feature is used for completion popups and " { $link "ui.gadgets.menus" } " in the " { $link "ui-tools" } "."
+$nl
+"Displaying a gadget in a glass layer:"
+{ $subsection show-glass }
+"Hiding a gadget in a glass layer:"
+{ $subsection hide-glass }
+"Callback generic invoked on the gadget when its glass layer is hidden:"
+{ $subsection hide-glass-hook }
+"Popup gadgets add support for forwarding keyboard gestures from an owner gadget to the glass layer:"
+{ $subsection show-popup }
+{ $subsection pass-to-popup } ;
+
+ABOUT: "ui.gadgets.glass"
\ No newline at end of file
diff --git a/basis/ui/gadgets/glass/glass.factor b/basis/ui/gadgets/glass/glass.factor
index a8f438c85e..af169235b4 100644
--- a/basis/ui/gadgets/glass/glass.factor
+++ b/basis/ui/gadgets/glass/glass.factor
@@ -71,7 +71,7 @@ popup H{
     { T{ key-down f f "ESC" } [ hide-glass ] }
 } set-gestures
 
-: pass-to-popup ( gesture interactor -- ? )
+: pass-to-popup ( gesture owner -- ? )
     popup>> focusable-child resend-gesture ;
 
 : show-popup ( owner popup visible-rect -- )
diff --git a/basis/ui/gadgets/menus/menus-docs.factor b/basis/ui/gadgets/menus/menus-docs.factor
index d7297217ed..ad0881a382 100644
--- a/basis/ui/gadgets/menus/menus-docs.factor
+++ b/basis/ui/gadgets/menus/menus-docs.factor
@@ -16,7 +16,7 @@ HELP: show-commands-menu
 { $notes "Useful for right-click context menus." } ;
 
 ARTICLE: "ui.gadgets.menus" "Popup menus"
-"The " { $vocab-link "ui.gadgets.menus" } " vocabulary implements popup menus."
+"The " { $vocab-link "ui.gadgets.menus" } " vocabulary displays popup menus in " { $link "ui.gadgets.glass" } "."
 { $subsection <commands-menu> }
 { $subsection show-menu }
 { $subsection show-commands-menu } ;
diff --git a/basis/ui/gadgets/status-bar/status-bar-docs.factor b/basis/ui/gadgets/status-bar/status-bar-docs.factor
index f5a6409fca..57c69c2a66 100644
--- a/basis/ui/gadgets/status-bar/status-bar-docs.factor
+++ b/basis/ui/gadgets/status-bar/status-bar-docs.factor
@@ -3,7 +3,7 @@ ui.gadgets ui.gadgets.worlds ui ;
 IN: ui.gadgets.status-bar
 
 HELP: show-status
-{ $values { "string" string } { "gadget" gadget } }
+{ $values { "string/f" string } { "gadget" gadget } }
 { $description "Displays a status message in the gadget's world." }
 { $notes "The status message will only be visible if the window was opened with " { $link open-status-window } ", and not " { $link open-window } "." } ;
 
diff --git a/basis/ui/ui-docs.factor b/basis/ui/ui-docs.factor
index d08dea299e..f2b6154745 100644
--- a/basis/ui/ui-docs.factor
+++ b/basis/ui/ui-docs.factor
@@ -171,6 +171,7 @@ ARTICLE: "ui-layouts" "Gadget hierarchy and layouts"
 { $subsection "ui-frame-layout" }
 { $subsection "ui-book-layout" }
 "Advanced topics:"
+{ $subsection "ui.gadgets.glass" }
 { $subsection "ui-null-layout" }
 { $subsection "ui-incremental-layout" }
 { $subsection "ui-layout-impl" }