Remove hacks for 20546 and persist 'collapsed' on splitter siblings instead. Bug 29813. r=evaughan,mcafee a=jevering

suite/common/sidebar/sidebarOverlay.css

@@ -87,14 +87,6 @@ splitter#sidebar-splitter[hidden="true"] {
   display: none;
 }
 
-box#sidebar-box[hackforbug20546="true"] {
-  visibility: collapse;
-}
-
-box#sidebar-box[hackforbug20546="true"][hackforbug20546-applied="true"] {
-  visibility: inherit;
-}
-
 iframe.panel-frame {
   min-width: 1px;
 }

suite/common/sidebar/sidebarOverlay.js

@@ -204,6 +204,8 @@ function select_panel(target) {
 
   debug("select_panel("+target+")");
 
+  iframe.setAttribute('src', 'about:blank');
+
   var select_index = find_panel(top_headers, target);
 
   if (!select_index) {
@@ -353,18 +355,18 @@ function SidebarCustomize() {
 // Show/Hide the entire sidebar.
 // Envoked by the "View / Sidebar" menu option.
 function SidebarShowHide() {
-  var sidebarBox = document.getElementById('sidebar-box');
+  var sidebar_box = document.getElementById('sidebar-box');
   var sidebar_splitter = document.getElementById('sidebar-splitter');
-  var is_hidden = sidebarBox.getAttribute('hidden');
+  var is_hidden = sidebar_box.getAttribute('hidden');
 
   if (is_hidden && is_hidden == "true") {
     debug("Showing the sidebar");
-    sidebarBox.removeAttribute('hidden');
+    sidebar_box.removeAttribute('hidden');
     sidebar_splitter.removeAttribute('hidden');
     sidebar_overlay_init();
   } else {
     debug("Hiding the sidebar");
-    sidebarBox.setAttribute('hidden','true');
+    sidebar_box.setAttribute('hidden','true');
     sidebar_splitter.setAttribute('hidden','true');
   }
   // Immediately save persistent values
@@ -373,46 +375,10 @@ function SidebarShowHide() {
 }
 
 // SidebarExpandCollapse() - Respond to grippy click.
-// XXX This whole function is a hack to work around
-// bugs #20546, and #22214.
 function SidebarExpandCollapse() {
-  var sidebarBox = document.getElementById('sidebar-box');
-  var sidebar_splitter = document.getElementById('sidebar-splitter');
-
-  sidebarBox.setAttribute('hackforbug20546-applied','true');
-
-  // Get the current open/collapsed state
-  // The value of state is the "preclick" state
-  var state = sidebar_splitter.getAttribute('state');
-
-  if (state && state == 'collapsed') {
-    // Going from collapsed to open.
-
-    sidebarBox.removeAttribute('hackforbug20546');
-
-    // Reset the iframe's src to get the content to display.
-    // This might be bug #22214.
-    var panels = document.getElementById('sidebar-panels');
-    var target = panels.getAttribute('open-panel-src');
-    var iframe = document.getElementById('sidebar-content');
-    iframe.setAttribute('src', target);
-
-    // XXX Partial hack workaround for bug #22214.
-    bump_width(+1);
-    setTimeout("bump_width(-1)",10);
-
-  } else {
-    // Going from open to collapsed.
-
-    sidebarBox.setAttribute('hackforbug20546','true');
-  }
-}
-
-// XXX Partial hack workaround for bug #22214.
-function bump_width(delta) {
-  var sidebarBox = document.getElementById('sidebar-box');
-  var width = sidebarBox.getAttribute('width');
-  sidebarBox.setAttribute('width', parseInt(width) + delta);
+  // XXX Mini hack. Persist isn't working too well. Force the persist,
+  // but wait until the change has commited.
+  setTimeout("document.persist('sidebar-box', 'collapsed');",100);
 }
 
 function PersistHeight() {
@@ -425,22 +391,16 @@ function PersistHeight() {
 
 function persist_width() {
   // XXX Partial workaround for bug #19488.
-  var sidebarBox = document.getElementById('sidebar-box');
-  var sidebar_splitter = document.getElementById('sidebar-splitter');
-  var state = sidebar_splitter.getAttribute('state');
-
-  var width = sidebarBox.getAttribute('width');
-
-  if (!state || state == '' || state == 'open') {
-    sidebarBox.removeAttribute('hackforbug20546');
-    sidebarBox.setAttribute('hackforbug20546-applied','true');
-  }
+  var sidebar_box = document.getElementById('sidebar-box');
 
+  var width = sidebar_box.getAttribute('width');
   if (width && (width > 410 || width < 15)) {
-    sidebarBox.setAttribute('width',168);
+    sidebar_box.setAttribute('width',168);
   }
 
-  document.persist('sidebar-box', 'width');
+  // XXX Mini hack. Persist isn't working too well. Force the persist,
+  // but wait until the width change has commited.
+  setTimeout("document.persist('sidebar-box', 'width');",100);
 }
 
 function SidebarFinishDrag() {

suite/common/sidebar/sidebarOverlay.xul

@@ -28,7 +28,7 @@
 
   <!-- Overlay the sidebar panels -->
   <box id="sidebar-box" align="vertical"
-    persist="hidden width hackforbug20546">
+    persist="hidden width collapsed">
     <splitter id="title-box" class="sidebar-main-header" collapse="after"
       persist="state" onmouseup="PersistHeight();">
       <html:div class="panel-bar">
@@ -39,7 +39,7 @@
         value="&sidebar.customize.label;" 
         onclick="SidebarCustomize();"/>
     </splitter>
-    <box id="sidebar-panels-box" align="vertical" flex="1*" persist="height">
+    <box id="sidebar-panels-box" align="vertical" flex="1*" persist="height collapsed">
       <box id="sidebar-panels" align="vertical"
         datasources="chrome://sidebar/content/local-panels.rdf chrome://sidebar/content/remote-panels.rdf"
         ref="urn:sidebar:current-panel-list"