From 2a3c2708fd1f55bd06d0b48a132d487a1745c075 Mon Sep 17 00:00:00 2001
From: "jkeiser%netscape.com" <>
Date: Thu, 31 Jul 2003 03:04:48 +0000
Subject: Patch Viewer, a pretty way of viewing and manipulating patches (bug
 174942).  Requires PatchIterator to be installed, classes uploaded to that
 bug and will be soon in CPAN.

---
 template/en/default/attachment/diff-file.html.tmpl | 129 +++++++++
 .../en/default/attachment/diff-footer.html.tmpl    |  33 +++
 .../en/default/attachment/diff-header.html.tmpl    | 307 +++++++++++++++++++++
 template/en/default/attachment/edit.html.tmpl      | 107 +++++--
 template/en/default/attachment/list.html.tmpl      |   8 +-
 template/en/default/filterexceptions.pl            |  35 ++-
 template/en/default/global/user-error.html.tmpl    |  17 ++
 7 files changed, 590 insertions(+), 46 deletions(-)
 create mode 100644 template/en/default/attachment/diff-file.html.tmpl
 create mode 100644 template/en/default/attachment/diff-footer.html.tmpl
 create mode 100644 template/en/default/attachment/diff-header.html.tmpl

(limited to 'template/en')

diff --git a/template/en/default/attachment/diff-file.html.tmpl b/template/en/default/attachment/diff-file.html.tmpl
new file mode 100644
index 000000000..51072269d
--- /dev/null
+++ b/template/en/default/attachment/diff-file.html.tmpl
@@ -0,0 +1,129 @@
+<!-- 1.0@bugzilla.org -->
+[%# The contents of this file are subject to the Mozilla Public
+  # License Version 1.1 (the "License"); you may not use this file
+  # except in compliance with the License. You may obtain a copy of
+  # the License at http://www.mozilla.org/MPL/
+  #
+  # Software distributed under the License is distributed on an "AS
+  # IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+  # implied. See the License for the specific language governing
+  # rights and limitations under the License.
+  #
+  # The Original Code is the Bugzilla Bug Tracking System.
+  #
+  # The Initial Developer of the Original Code is Netscape Communications
+  # Corporation. Portions created by Netscape are
+  # Copyright (C) 1998 Netscape Communications Corporation. All
+  # Rights Reserved.
+  #
+  # Contributor(s): John Keiser <jkeiser@netscape.com>
+  #%]
+
+[%# This line is really long for a reason: to get rid of any possible textnodes
+  # between the elements.  This is necessary because DOM parent-child-sibling
+  # relations can change and screw up the javascript for restoring, collapsing
+  # and expanding.  Do not change without testing all three of those.
+  #%]
+<table class="file_table"><thead><tr><td class="file_head" colspan="2"><a href="#" onclick="return twisty_click(this)">[% collapsed ? '(+)' : '(-)' %]</a><input type="checkbox" name="[% file.filename FILTER html %]"[% collapsed ? '' : ' checked' %] style="display: none"> 
+  [% IF lxr_prefix && !file.is_add %]
+    <a href="[% lxr_prefix %]">[% file.filename FILTER html %]</a>
+  [% ELSE %]
+    [% file.filename FILTER html %]
+  [% END %]
+  [% IF file.plus_lines %]
+    [% IF file.minus_lines %]
+      (-[% file.minus_lines %]&nbsp;/&nbsp;+[% file.plus_lines %]&nbsp;lines)
+    [% ELSE %]
+      (+[% file.plus_lines %]&nbsp;lines)
+    [% END %]
+  [% ELSE %]
+    [% IF file.minus_lines %]
+      (-[% file.minus_lines %]&nbsp;lines)
+    [% END %]
+  [% END %]
+</td></tr></thead><tbody class="[% collapsed ? 'file_collapse' : 'file' %]">
+<script type="application/x-javascript" language="JavaScript">
+incremental_restore()
+</script>
+
+[% section_num = 0 %]
+[% FOREACH section = sections %]
+  [% section_num = section_num + 1 %]
+  <tr><th class="section_head" colspan="2">
+  [% IF file.is_add %]
+    Added
+  [% ELSIF file.is_remove %]
+    [% IF bonsai_prefix %]
+      <a href="[% bonsai_prefix %]">Removed</a>
+    [% ELSE %]
+      Removed
+    [% END %]
+  [% ELSE %]
+    [% IF bonsai_prefix %]
+      <a href="[% bonsai_prefix %]#[% section.old_start %]">
+    [% END %]
+    [% IF section.old_lines > 1 %]
+      Lines [% section.old_start %]-[% section.old_start + section.old_lines - 1 %]
+    [% ELSE %]
+      Line [% section.old_start %]
+    [% END %]
+    [% IF bonsai_prefix %]
+      </a>
+    [% END %]
+  [% END %] 
+  (<a name="[% file.filename FILTER html %]_sec[% section_num %]"><a href="#[% file.filename FILTER html %]_sec[% section_num %]">Link Here</a></a>)
+  </th></tr>
+  [% FOREACH group = section.groups %]
+    [% IF group.context %]
+      [% FOREACH line = group.context %]
+        <tr><td><pre>[% line FILTER html %]</pre></td><td><pre>[% line FILTER html %]</pre></td></tr>
+      [% END %]
+    [% END %]
+    [% IF group.plus.size %]
+      [% IF group.minus.size %]
+        [% i = 0 %]
+        [% WHILE (i < group.plus.size || i < group.minus.size) %]
+          [% currentloop = 0 %]
+          [% WHILE currentloop < 500 && (i < group.plus.size || i < group.minus.size) %]
+            <tr class="changed">
+              <td><pre>[% group.minus.$i FILTER html %]</pre></td>
+              <td><pre>[% group.plus.$i FILTER html %]</pre></td>
+            </tr>
+            [% currentloop = currentloop + 1 %]
+            [% i = i + 1 %]
+          [% END %]
+        [% END %]
+      [% ELSE %]
+        [% FOREACH line = group.plus %]
+          [% IF file.is_add %]
+            <tr>
+              <td class="added" colspan="2"><pre>[% line FILTER html %]</pre></td>
+            </tr>
+          [% ELSE %]
+            <tr>
+              <td></td>
+              <td class="added"><pre>[% line FILTER html %]</pre></td>
+            </tr>
+          [% END %]
+        [% END %]
+      [% END %]
+    [% ELSE %]
+      [% IF group.minus.size %]
+        [% FOREACH line = group.minus %]
+          [% IF file.is_remove %]
+            <tr>
+              <td class="removed" colspan="2"><pre>[% line FILTER html %]</pre></td>
+            </tr>
+          [% ELSE %]
+            <tr>
+              <td class="removed"><pre>[% line FILTER html %]</pre></td>
+              <td></td>
+            </tr>
+          [% END %]
+        [% END %]
+      [% END %]
+    [% END %]
+  [% END %]
+[% END %]
+
+</table>
diff --git a/template/en/default/attachment/diff-footer.html.tmpl b/template/en/default/attachment/diff-footer.html.tmpl
new file mode 100644
index 000000000..4eb94aca2
--- /dev/null
+++ b/template/en/default/attachment/diff-footer.html.tmpl
@@ -0,0 +1,33 @@
+<!-- 1.0@bugzilla.org -->
+[%# The contents of this file are subject to the Mozilla Public
+  # License Version 1.1 (the "License"); you may not use this file
+  # except in compliance with the License. You may obtain a copy of
+  # the License at http://www.mozilla.org/MPL/
+  #
+  # Software distributed under the License is distributed on an "AS
+  # IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+  # implied. See the License for the specific language governing
+  # rights and limitations under the License.
+  #
+  # The Original Code is the Bugzilla Bug Tracking System.
+  #
+  # The Initial Developer of the Original Code is Netscape Communications
+  # Corporation. Portions created by Netscape are
+  # Copyright (C) 1998 Netscape Communications Corporation. All
+  # Rights Reserved.
+  #
+  # Contributor(s): John Keiser <jkeiser@netscape.com>
+  #%]
+
+</form>
+
+[% IF headers %]
+
+  <br>
+
+  [% PROCESS global/footer.html.tmpl %]
+ 
+[% ELSE %]
+</body>
+</html>
+[% END %]
diff --git a/template/en/default/attachment/diff-header.html.tmpl b/template/en/default/attachment/diff-header.html.tmpl
new file mode 100644
index 000000000..c1b70173e
--- /dev/null
+++ b/template/en/default/attachment/diff-header.html.tmpl
@@ -0,0 +1,307 @@
+<!-- 1.0@bugzilla.org -->
+[%# The contents of this file are subject to the Mozilla Public
+  # License Version 1.1 (the "License"); you may not use this file
+  # except in compliance with the License. You may obtain a copy of
+  # the License at http://www.mozilla.org/MPL/
+  #
+  # Software distributed under the License is distributed on an "AS
+  # IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+  # implied. See the License for the specific language governing
+  # rights and limitations under the License.
+  #
+  # The Original Code is the Bugzilla Bug Tracking System.
+  #
+  # The Initial Developer of the Original Code is Netscape Communications
+  # Corporation. Portions created by Netscape are
+  # Copyright (C) 1998 Netscape Communications Corporation. All
+  # Rights Reserved.
+  #
+  # Contributor(s): John Keiser <jkeiser@netscape.com>
+  #%]
+
+[%# Define strings that will serve as the title and header of this page %]
+
+[% title = BLOCK %]Attachment #[% attachid %] for Bug #[% bugid %][% END %]
+
+[% style = BLOCK %]
+.file_head {
+  font-size: x-large;
+  font-weight: bold;
+  background-color: #d3d3d3;
+  border: 1px solid black;
+  width: 100%;
+}
+.file_collapse {
+  display: none;
+}
+.section_head {
+  width: 100%;
+  font-weight: bold;
+  background-color: #d3d3d3;
+  border: 1px solid black;
+  text-align: left;
+}
+table.file_table {
+  table-layout: fixed;
+  width: 100%;
+  empty-cells: show;
+  border-spacing: 0px;
+  border-collapse: collapse;
+}
+tbody.file td {
+  border-left: 1px dashed black;
+  border-right: 1px dashed black;
+  width: 50%;
+}
+tbody.file pre {
+  display: inline;
+  white-space: -moz-pre-wrap;
+  font-size: 0.9em;
+}
+tbody.file pre:empty {
+  display: block;
+  height: 1em;
+}
+.changed {
+  background-color: lightblue;
+}
+.added {
+  background-color: lightgreen;
+}
+.removed {
+  background-color: #FFCC99;
+}
+.warning {
+  color: red
+}
+[% END %]
+
+[%# SCRIPT FUNCTIONS %]
+[% javascript = BLOCK %]
+  function collapse_all() {
+    var elem = document.checkboxform.firstChild;
+    while (elem != null) {
+      if (elem.firstChild != null) {
+        var tbody = elem.firstChild.nextSibling;
+        if (tbody.className == 'file') {
+          tbody.className = 'file_collapse';
+          twisty = get_twisty_from_tbody(tbody);
+          twisty.firstChild.nodeValue = '(+)';
+          twisty.nextSibling.checked = false;
+        }
+      }
+      elem = elem.nextSibling;
+    }
+    return false;
+  }
+
+  function expand_all() {
+    var elem = document.checkboxform.firstChild;
+    while (elem != null) {
+      if (elem.firstChild != null) {
+        var tbody = elem.firstChild.nextSibling;
+        if (tbody.className == 'file_collapse') {
+          tbody.className = 'file';
+          twisty = get_twisty_from_tbody(tbody);
+          twisty.firstChild.nodeValue = '(-)';
+          twisty.nextSibling.checked = true;
+        }
+      }
+      elem = elem.nextSibling;
+    }
+    return false;
+  }
+
+  var current_restore_elem;
+
+  function restore_all() {
+    current_restore_elem = null;
+    incremental_restore();
+  }
+
+  function incremental_restore() {
+    if (!document.checkboxform.restore_indicator.checked) {
+      return;
+    }
+    var next_restore_elem;
+    if (current_restore_elem) {
+      next_restore_elem = current_restore_elem.nextSibling;
+    } else {
+      next_restore_elem = document.checkboxform.firstChild;
+    }
+    while (next_restore_elem != null) {
+      current_restore_elem = next_restore_elem;
+      if (current_restore_elem.firstChild != null) {
+        restore_elem(current_restore_elem.firstChild.nextSibling);
+      }
+      next_restore_elem = current_restore_elem.nextSibling;
+    }
+  }
+
+  function restore_elem(elem, alertme) {
+    if (elem.className == 'file_collapse') {
+      twisty = get_twisty_from_tbody(elem);
+      if (twisty.nextSibling.checked) {
+        elem.className = 'file';
+        twisty.firstChild.nodeValue = '(-)';
+      }
+    } else if (elem.className == 'file') {
+      twisty = get_twisty_from_tbody(elem);
+      if (!twisty.nextSibling.checked) {
+        elem.className = 'file_collapse';
+        twisty.firstChild.nodeValue = '(+)';
+      }
+    }
+  }
+
+  function twisty_click(twisty) {
+    tbody = get_tbody_from_twisty(twisty);
+    if (tbody.className == 'file') {
+      tbody.className = 'file_collapse';
+      twisty.firstChild.nodeValue = '(+)';
+      twisty.nextSibling.checked = false;
+    } else {
+      tbody.className = 'file';
+      twisty.firstChild.nodeValue = '(-)';
+      twisty.nextSibling.checked = true;
+    }
+    return false;
+  }
+
+  function get_tbody_from_twisty(twisty) {
+    return twisty.parentNode.parentNode.parentNode.nextSibling;
+  }
+  function get_twisty_from_tbody(tbody) {
+    return tbody.previousSibling.firstChild.firstChild.firstChild;
+  }
+[% END %]
+
+[% onload = 'restore_all(); document.checkboxform.restore_indicator.checked = true' %]
+
+[% IF headers %]
+  [% h1 = BLOCK %]
+    [% IF attachid %]
+      [% description FILTER html %] (#[% attachid %])
+    [% ELSE %]
+      [% old_url = url('attachment.cgi', action = 'diff', id = oldid) %]
+      [% new_url = url('attachment.cgi', action = 'diff', id = newid) %]
+      Diff Between 
+      <a href="[% old_url %]">[% old_desc FILTER html %]</a>
+      (<a href="[% old_url %]">#[% oldid %]</a>)
+      and 
+      <a href="[% new_url %]">[% new_desc FILTER html %]</a>
+      (<a href="[% new_url %]">#[% newid %]</a>)
+    [% END %]
+    for <a href="show_bug.cgi?id=[% bugid %]">Bug #[% bugid %]</a>
+  [% END %]
+  [% h2 = BLOCK %]
+    [% bugsummary FILTER html %]
+  [% END %]
+  [% PROCESS global/header.html.tmpl %]
+[% ELSE %]
+  <html>
+  <head>
+  <style type="text/css">
+  [% style %]
+  </style>
+  <script type="text/javascript" language="JavaScript">
+  <!--
+  [% javascript %]
+  -->
+  </script>
+  </head>
+  <body onload="[% onload FILTER html %]">
+[% END %]
+  
+[%# If we have attachid, we are in diff, otherwise we're in interdiff %]
+[% IF attachid %]
+  [%# HEADER %]
+  [% IF headers %]
+    [% USE url('attachment.cgi', id = attachid) %]
+    <a href="[% url() %]">View</a>
+    | <a href="[% url(action = 'edit') %]">Edit</a>
+    [% USE url('attachment.cgi', id = attachid, context = context,
+                                 collapsed = collapsed, headers = headers,
+                                 action = 'diff') %]
+    | <a href="[% url(format = 'raw') %]">Raw Unified</a>
+  [% END %]
+  [% IF other_patches %]
+    [% IF headers %] |[%END%]
+    Differences between
+    <form style="display: inline">
+      <select name="oldid">
+      [% FOREACH patch = other_patches %]
+        <option value="[% patch.id %]"
+        [% IF patch.selected %] selected[% END %]
+        >[% patch.desc FILTER html %]</option>
+      [% END %]
+      </select>
+      and this patch
+      <input type="submit" value="Diff">
+      <input type="hidden" name="action" value="interdiff">
+      <input type="hidden" name="newid" value="[% attachid %]">
+      <input type="hidden" name="headers" value="[% headers FILTER html %]">
+    </form>
+  [% END %]
+  <br>
+[% ELSE %]
+  [% IF headers %]
+    [% USE url('attachment.cgi', newid = newid, oldid = oldid, action = 'interdiff') %]
+    <a href="[% url(format = 'raw') %]">Raw Unified</a>
+    [% IF attachid %]
+    <br>
+    [% ELSE %]
+    |
+    [% END %]
+  [% END %]
+[% END %]
+  
+[%# Collapse / Expand %]
+<a href="#"
+   onmouseover="lastStatus = window.status; window.status='Collapse All'; return true"
+   onmouseout="window.status = lastStatus; return true"
+   onclick="return collapse_all()">Collapse All</a> | 
+<a href="#"
+   onmouseover="lastStatus = window.status; window.status='Expand All'; return true"
+   onmouseout="window.status = lastStatus; return true"
+   onclick="return expand_all()">Expand All</a>
+
+[% IF do_context %]
+  | <span style='font-weight: bold'>Context:</span>
+  [% IF context == "patch" %]
+    (<strong>Patch</strong> / 
+  [% ELSE %]
+    (<a href="[% url(context = '') %]">Patch</a> / 
+  [% END %]
+  [% IF context == "file" %]
+    <strong>File</strong> /
+  [% ELSE %]
+    <a href="[% url(context = 'file') %]">File</a> / 
+  [% END %]
+
+  [% IF context == "patch" || context == "file" %]
+    [% context = 3 %]
+  [% END %]
+  [%# textbox for context %]
+  <form style="display: inline"><input type="hidden" name="action" value="diff"><input type="hidden" name="id" value="[% attachid %]"><input type="hidden" name="collapsed" value="[% collapsed FILTER html %]"><input type="hidden" name="headers" value="[% headers FILTER html %]"><input type="text" name="context" value="[% context FILTER html %]" size="3"></form>)
+[% END %]
+
+[% IF warning %]
+<h2 class="warning">Warning: 
+  [% IF warning == "interdiff1" %]
+  this difference between two patches may show things in the wrong places due
+  to a limitation in Bugzilla when comparing patches with different sets of
+  files.
+  [% END %]
+  [% IF warning == "interdiff2" %]
+  this difference between two patches may be inaccurate due to a limitation in
+  Bugzilla when comparing patches made against different revisions.
+  [% END %]
+</h2>
+[% END %]
+ 
+[%# Restore Stuff %]
+<form name="checkboxform">
+<input type="checkbox" name="restore_indicator" style="display: none">
+
+
diff --git a/template/en/default/attachment/edit.html.tmpl b/template/en/default/attachment/edit.html.tmpl
index 14c2dc1fe..2cfc0e088 100644
--- a/template/en/default/attachment/edit.html.tmpl
+++ b/template/en/default/attachment/edit.html.tmpl
@@ -42,6 +42,10 @@
 
 <script type="application/x-javascript" language="JavaScript">
   <!--
+  var prev_mode = 'raw';
+  var current_mode = 'raw';
+  var has_edited = 0;
+  var has_viewed_as_diff = 0;
   function editAsComment()
     {
       // Get the content of the document as a string.
@@ -69,44 +73,81 @@
       // with a newline.
       theContent = theContent.replace( /(.*\n|.+)/g , ">$1" );
 
-      hideElementById('viewFrame');
-      hideElementById('editButton');
-      hideElementById('smallCommentFrame');
-
-      showElementById('undoEditButton');
-
-      // Show the TEXTAREA that will contain the editable attachment
-      // and copy the content of the attachment into it.
-      showElementById('editFrame');
+      switchToMode('edit');
 
+      // Copy the contents of the diff into the textarea
       var editFrame = document.getElementById('editFrame');
       editFrame.value = theContent;
       editFrame.value += "\n\n";
+
+      has_edited = 1;
     }
   function undoEditAsComment()
     {
-      // Hide the "edit attachment as comment" TEXTAREA and the "undo" button.
-      hideElementById('undoEditButton');
-      hideElementById('editFrame');
-
-      // Show the "view attachment" IFRAME, the "redo" button that allows the user
-      // to go back to editing the attachment as a comment, and the small comment field.
-      showElementById('viewFrame');
-      showElementById('redoEditButton');
-      showElementById('smallCommentFrame');
-
+      switchToMode(prev_mode);
     }
   function redoEditAsComment()
     {
-      // Hide the "view attachment" IFRAME, the "redo" button that allows the user
-      // to go back to editing the attachment as a comment, and the small comment field.
-      hideElementById('viewFrame');
-      hideElementById('redoEditButton');
-      hideElementById('smallCommentFrame');
-
-      // Show the "edit attachment as comment" TEXTAREA and the "undo" button.
-      showElementById('undoEditButton');
-      showElementById('editFrame');
+      switchToMode('edit');
+    }
+  function viewDiff()
+    {
+      switchToMode('diff');
+
+      // If we have not viewed as diff before, set the view diff frame URL
+      if (!has_viewed_as_diff) {
+        var viewDiffFrame = document.getElementById('viewDiffFrame');
+        viewDiffFrame.src =
+            'attachment.cgi?id=[% attachid %]&action=diff&headers=0';
+        has_viewed_as_diff = 1;
+      }
+    }
+  function viewRaw()
+    {
+      switchToMode('raw');
+    }
+
+  function switchToMode(mode)
+    {
+      if (mode == current_mode) {
+        alert('switched to same mode!  This should not happen.');
+        return;
+      }
+
+      // Switch out of current mode
+      if (current_mode == 'edit') {
+        hideElementById('editFrame');
+        hideElementById('undoEditButton');
+      } else if (current_mode == 'raw') {
+        hideElementById('viewFrame');
+        hideElementById('viewDiffButton');
+        hideElementById(has_edited ? 'redoEditButton' : 'editButton');
+        hideElementById('smallCommentFrame');
+      } else if (current_mode == 'diff') {
+        hideElementById('viewDiffFrame');
+        hideElementById('viewRawButton');
+        hideElementById(has_edited ? 'redoEditButton' : 'editButton');
+        hideElementById('smallCommentFrame');
+      }
+
+      // Switch into new mode
+      if (mode == 'edit') {
+        showElementById('editFrame');
+        showElementById('undoEditButton');
+      } else if (mode == 'raw') {
+        showElementById('viewFrame');
+        showElementById('viewDiffButton');
+        showElementById(has_edited ? 'redoEditButton' : 'editButton');
+        showElementById('smallCommentFrame');
+      } else if (mode == 'diff') {
+        showElementById('viewDiffFrame');
+        showElementById('viewRawButton');
+        showElementById(has_edited ? 'redoEditButton' : 'editButton');
+        showElementById('smallCommentFrame');
+      }
+
+      prev_mode = current_mode;
+      current_mode = mode;
     }
 
   function hideElementById(id)
@@ -184,8 +225,11 @@
             <textarea name="comment" rows="5" cols="25" wrap="soft"></textarea><br>
         </div>
 
-        <input type="submit" value="Submit">
-
+        <input type="submit" value="Submit"><br><br>
+        <strong>Actions:</strong> <a href="attachment.cgi?id=[% attachid %]">View</a>
+        [% IF ispatch %]
+         | <a href="attachment.cgi?id=[% attachid %]&action=diff">Diff</a>
+        [% END %]
         </small>
       </td>
 
@@ -199,9 +243,12 @@
           <script type="application/x-javascript" language="JavaScript">
             <!--
             if (typeof document.getElementById == "function") {
+              document.write('<iframe id="viewDiffFrame" style="height: 400px; width: 100%; display: none;"></iframe>');
               document.write('<button type="button" id="editButton" onclick="editAsComment();">Edit Attachment As Comment</button>');
               document.write('<button type="button" id="undoEditButton" onclick="undoEditAsComment();" style="display: none;">Undo Edit As Comment</button>');
               document.write('<button type="button" id="redoEditButton" onclick="redoEditAsComment();" style="display: none;">Redo Edit As Comment</button>');
+              document.write('<button type="button" id="viewDiffButton" onclick="viewDiff();">View Attachment As Diff</button>');
+              document.write('<button type="button" id="viewRawButton" onclick="viewRaw();" style="display: none;">View Attachment As Raw</button>');
             }
             //-->
           </script>
diff --git a/template/en/default/attachment/list.html.tmpl b/template/en/default/attachment/list.html.tmpl
index fc5852923..598f8172b 100644
--- a/template/en/default/attachment/list.html.tmpl
+++ b/template/en/default/attachment/list.html.tmpl
@@ -69,8 +69,12 @@
       <td valign="top">
         [% IF attachment.canedit %]
           <a href="attachment.cgi?id=[% attachment.attachid %]&amp;action=edit">Edit</a>
-        [% ELSE %]
-          None
+        [% END %]
+        [% IF attachment.ispatch %]
+          [% IF attachment.canedit %]
+            |
+          [% END %]
+          <a href="attachment.cgi?id=[% attachment.attachid %]&amp;action=diff">Diff</a>
         [% END %]
       </td>
     </tr>
diff --git a/template/en/default/filterexceptions.pl b/template/en/default/filterexceptions.pl
index ba626a21b..60590d4a4 100644
--- a/template/en/default/filterexceptions.pl
+++ b/template/en/default/filterexceptions.pl
@@ -105,7 +105,6 @@
 
 'reports/components.html.tmpl' => [
   'numcols',
-  'numcols - 1',
   'comp.description', 
   'comp.initialowner', # email address
   'comp.initialqacontact', # email address
@@ -181,10 +180,6 @@
   'other_format.name', 
   'other_format.description', #
   'sizeurl', 
-  'height + 100', 
-  'height - 100', 
-  'width + 100', 
-  'width - 100', 
   'switchbase',
   'format',
   'cumulate',
@@ -257,7 +252,6 @@
 
 'list/table.html.tmpl' => [
   'id', 
-  'splitheader ? 2 : 1', 
   'abbrev.$id.title || field_descs.$id || column.title', #
   'tableheader',
   'bug.bug_severity', #
@@ -387,9 +381,6 @@
   'dependson_ids.join(",")', 
   'blocked_ids.join(",")', 
   'dep_id', 
-  'hide_resolved ? 0 : 1', 
-  'hide_resolved ? "Show" : "Hide"', 
-  'realdepth < 2 || maxdepth == 1 ? "disabled" : ""', 
   'hide_resolved', 
   'realdepth < 2 ? "disabled" : ""', 
   'maxdepth + 1', 
@@ -420,7 +411,6 @@
 ],
 
 'bug/navigate.html.tmpl' => [
-  'this_bug_idx + 1', 
   'bug_list.first', 
   'bug_list.last', 
   'bug_list.$prev_bug', 
@@ -540,7 +530,6 @@
   'flag.type.name', 
   'flag.status',
   'flag.requestee.nick', # Email
-  'show_attachment_flags ? 4 : 3',
   'bugid',
 ],
 
@@ -553,6 +542,27 @@
   'bugid', 
 ],
 
+'attachment/diff-header.html.tmpl' => [
+  'attachid',
+  'bugid',
+  'old_url',
+  'new_url',
+  'oldid',
+  'newid',
+  'style',
+  'javascript',
+  'patch.id',
+],
+
+'attachment/diff-file.html.tmpl' => [
+  'lxr_prefix',
+  'file.minus_lines',
+  'file.plus_lines',
+  'bonsai_prefix',
+  'section.old_start',
+  'section_num'
+],
+
 'admin/products/groupcontrol/confirm-edit.html.tmpl' => [
   'group.count', 
 ],
@@ -586,7 +596,6 @@
 ],
 
 'admin/flag-type/list.html.tmpl' => [
-  'type.is_active ? "active" : "inactive"', 
   'type.id', 
   'type.flag_count', 
 ],
@@ -601,7 +610,6 @@
 
 'account/prefs/email.html.tmpl' => [
   'watchedusers', # Email
-  'useqacontact ? \'5\' : \'4\'', 
   'role', 
   'reason.name', 
   'reason.description',
@@ -617,7 +625,6 @@
   'tab.description', 
   'current_tab.name', 
   'current_tab.description', 
-  'current_tab.description FILTER lower',
 ],
 
 );
diff --git a/template/en/default/global/user-error.html.tmpl b/template/en/default/global/user-error.html.tmpl
index 8aa3842c8..de5d60c6c 100644
--- a/template/en/default/global/user-error.html.tmpl
+++ b/template/en/default/global/user-error.html.tmpl
@@ -344,6 +344,19 @@
     Valid types must be of the form <em>foo/bar</em> where <em>foo</em>
     is either <em>application, audio, image, message, model, multipart,
     text,</em> or <em>video</em>.
+    
+  [% ELSIF error == "invalid_context" %]
+    [% title = "Invalid Context" %]
+    The context [% context FILTER html %] is invalid (must be a number,
+    "file" or "patch").
+
+  [% ELSIF error == "invalid_format" %]
+    [% title = "Invalid Format" %]
+    The format "[% format FILTER html %]" is invalid (must be one of
+    [% FOREACH my_format = formats %]
+      "[% my_format FILTER html %]"
+    [% END %]
+    ).
 
   [% ELSIF error == "invalid_maxrow" %]
     [% title = "Invalid Max Rows" %]
@@ -427,6 +440,10 @@
     The query named <em>[% queryname FILTER html %]</em> does not
     exist.
         
+  [% ELSIF error == "must_be_patch" %]
+    [% title = "Attachment Must Be Patch" %]
+    Attachment #[% attach_id FILTER html %] must be a patch.
+
   [% ELSIF error == "missing_subcategory" %]
     [% title = "Missing Subcategory" %]
     You did not specify a subcategory for this series.
-- 
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