Add full size image display. Changes the core menu now checks that the

user has authotization before displaying the view fullsize icon.  It
probably needs a better icon, (but u make do with what u have or don't
have :-) )

4 files changed, 73 insertions, 3 deletions

diff --git a/core/helpers/core_menu.php b/core/helpers/core_menu.php
index 1564e4d4..247fd215 100644
--- a/core/helpers/core_menu.php
+++ b/core/helpers/core_menu.php
@@ -87,12 +87,15 @@ class core_menu_Core {
   }
 
   static function photo($menu, $theme) {
-    $menu
-      ->append(Menu::factory("link")
+    if (access::can("view_full", $theme->item())) {
+      $menu
+        ->append(Menu::factory("link")
                ->id("fullsize")
                ->label(t("View full size"))
                ->url("#")
-               ->css_id("gFullsizeLink"))
+               ->css_id("gFullsizeLink"));
+    }
+    $menu
       ->append(Menu::factory("link")
                ->id("album")
                ->label(t("Return to album"))
diff --git a/core/helpers/core_theme.php b/core/helpers/core_theme.php
index 57664b48..2ac7d327 100644
--- a/core/helpers/core_theme.php
+++ b/core/helpers/core_theme.php
@@ -29,6 +29,16 @@ class core_theme_Core {
         url::file("core/css/quick.css") . "\" />";
       $buf .= html::script("core/js/quick.js");
     }
+    if ($theme->page_type == "photo" && access::can("view_full", $theme->item())) {
+      $buf .= "<script type=\"text/javascript\" >" .
+              "  var fullsize_detail = { " .
+              "    close: \"" . url::file("core/images/ico-close.png") . "\", " . 
+              "    url: \"" . $theme->item()->file_url() . "\", " . 
+              "    width: " . $theme->item()->width . ", " . 
+              "    height: " . $theme->item()->height . "};" . 
+              "</script>";
+      $buf .= html::script("core/js/fullsize.js");
+    }
     return $buf;
   }
 
diff --git a/core/images/ico-close.png b/core/images/ico-close.png
new file mode 100644
index 00000000..444f4872
--- /dev/null
+++ b/core/images/ico-close.png
diff --git a/core/js/fullsize.js b/core/js/fullsize.js
new file mode 100644
index 00000000..91e43529
--- /dev/null
+++ b/core/js/fullsize.js
@@ -0,0 +1,57 @@
+$(document).ready(function() {
+  $("#gFullsizeLink").click(function() {
+    var width = $(document).width();
+    var height = $(document).height();
+
+    $("body").append('<div id="gFullsizeOverlay" class="ui-dialog-overlay" ' +
+		     'style="border-width: 0px; margin: 0px; padding: 0px; background: black ' +
+		     'none repeat scroll 0% 0%; position: absolute; top: 0px; left: 0px; ' +
+		     'width: ' + width + 'px; height: ' + height + 'px; opacity: 0.7; '  +
+		     '-moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; ' +
+		     '-moz-background-inline-policy: -moz-initial; z-index: 1001;"> </div>');
+
+    var image_size = _auto_fit(fullsize_detail.width, fullsize_detail.height);
+
+    $("body").append("<div id='gFullsize' class='ui-dialog ui-widget' " +
+		     "style='overflow: hidden; display: block; " +
+		     "position: absolute; z-index: 1002; outline-color: -moz-use-text-color; " +
+		     "outline-style: none; outline-width: 0px; " +
+		     "height: " + image_size.height + "px; " +
+		     "width: " + image_size.width + "px; " +
+		     "top: " + image_size.top + "px; left: " + image_size.left + "px;'>" +
+		     "<img id='gFullSizeImage' src='" + fullsize_detail.url + "'" +
+		     "height='" + image_size.height + "' width='" + image_size.width + "'/></div");
+
+    $("#gFullsize").append("<div id='gFullsizeClose' style='z-index: 1003; position: absolute; right: 1em; top: 1em;'><img src='" + fullsize_detail.close + "' /></div>");
+    $("#gFullsizeClose").click(function() {
+      $("#gFullsizeOverlay*").remove();
+      $("#gFullsize").remove();
+    });
+  });
+});
+
+/*
+ * Calculate the size of the image panel based on the size of the image and the size of the
+ * window.  Scale the image so the entire panel fits in the view port.
+ */
+function _auto_fit(imageWidth, imageHeight) {
+  // ui-dialog gives a padding of 2 pixels
+  var windowWidth = $(window).width() - 10;
+  var windowHeight = $(window).height() - 10;
+
+  /* If the width is greater then scale the image width first */
+  if (imageWidth > windowWidth) {
+    var ratio = windowWidth / imageWidth;
+    imageWidth *= ratio;
+    imageHeight *= ratio;
+  }
+  /* after scaling the width, check that the height fits */
+  if (imageHeight > windowHeight) {
+    var ratio = windowHeight / imageHeight;
+    imageWidth *= ratio;
+    imageHeight *= ratio;
+  }
+
+  return {top: (windowHeight - imageHeight) / 2, left: (windowWidth - imageWidth) / 2,
+	  width: imageWidth, height: imageHeight};
+}