From bc2accc455e1dab67e0d29f034deddd9401ecad2 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Thu, 25 Mar 2010 14:16:50 -0400
Subject: [PATCH] - Added Home/End kayboard keys support on lists (#1486430)

---
 program/js/list.js |  405 +++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 377 insertions(+), 28 deletions(-)

diff --git a/program/js/list.js b/program/js/list.js
index 193e467..13fa7d3 100644
--- a/program/js/list.js
+++ b/program/js/list.js
@@ -37,6 +37,7 @@
   this.subject_col = -1;
   this.shiftkey = false;
   this.multiselect = false;
+  this.multiexpand = false;
   this.multi_selecting = false;
   this.draggable = false;
   this.keyboard = false;
@@ -76,7 +77,7 @@
     for(var r=0; r<this.list.tBodies[0].childNodes.length; r++)
     {
       row = this.list.tBodies[0].childNodes[r];
-      while (row && (row.nodeType != 1 || row.style.display == 'none'))
+      while (row && row.nodeType != 1)
       {
         row = row.nextSibling;
         r++;
@@ -108,7 +109,7 @@
     var p = this;
     var uid = RegExp.$1;
     row.uid = uid;
-    this.rows[uid] = {uid:uid, id:row.id, obj:row, classname:row.className};
+    this.rows[uid] = {uid:uid, id:row.id, obj:row};
 
     // set eventhandlers to table row
     row.onmousedown = function(e){ return p.drag_row(e, this.uid); };
@@ -127,7 +128,7 @@
  */
 clear: function(sel)
 {
-  var tbody = document.createElement('TBODY');
+  var tbody = document.createElement('tbody');
   this.list.insertBefore(tbody, this.list.tBodies[0]);
   this.list.removeChild(this.list.tBodies[1]);
   this.rows = new Array();
@@ -217,7 +218,8 @@
 {
   // don't do anything (another action processed before)
   var evtarget = rcube_event.get_target(e);
-  if (this.dont_select || (evtarget && (evtarget.tagName == 'INPUT' || evtarget.tagName == 'IMG')))
+  var tagname = evtarget.tagName.toLowerCase();
+  if (this.dont_select || (evtarget && (tagname == 'input' || tagname == 'img')))
     return true;
     
   // accept right-clicks
@@ -241,7 +243,7 @@
     rcube_event.add_listener({element:document, event:'mouseup', object:this, method:'drag_mouse_up'});
 
     // add listener for iframes
-    var iframes = document.getElementsByTagName('IFRAME');
+    var iframes = document.getElementsByTagName('iframe');
     this.iframe_events = Object();
     for (var n in iframes)
     {
@@ -283,8 +285,9 @@
   var now = new Date().getTime();
   var mod_key = rcube_event.get_modifier(e);
   var evtarget = rcube_event.get_target(e);
+  var tagname = evtarget.tagName.toLowerCase();
 
-  if ((evtarget && (evtarget.tagName == 'INPUT' || evtarget.tagName == 'IMG')))
+  if ((evtarget && (tagname == 'input' || tagname == 'img')))
     return true;
 
   // don't do anything (another action processed before)
@@ -317,8 +320,211 @@
 },
 
 
+/*
+ * Returns thread root ID for specified row ID
+ */
+find_root: function(uid)
+{
+   var r = this.rows[uid];
+
+   if (r && r.parent_uid)
+     return this.find_root(r.parent_uid);
+   else
+     return uid;
+},
+
+
+expand_row: function(e, id)
+{
+  var row = this.rows[id];
+  var evtarget = rcube_event.get_target(e);
+  var mod_key = rcube_event.get_modifier(e);
+
+  // Don't select this message
+  this.dont_select = true;
+  // Don't treat double click on the expando as double click on the message.
+  row.clicked = 0;
+
+  if (row.expanded) {
+    evtarget.className = "collapsed";
+    if (mod_key == CONTROL_KEY || this.multiexpand)
+      this.collapse_all(row);
+    else
+      this.collapse(row);
+  }
+  else {
+    evtarget.className = "expanded";
+    if (mod_key == CONTROL_KEY || this.multiexpand)
+      this.expand_all(row);
+    else
+     this.expand(row);
+  }
+},
+
+collapse: function(row)
+{
+  row.expanded = false;
+  this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded });
+  var depth = row.depth;
+  var new_row = row ? row.obj.nextSibling : null;
+  var r;
+
+  while (new_row) {
+    if (new_row.nodeType == 1) {
+      var r = this.rows[new_row.uid];
+      if (r && r.depth <= depth)
+        break;
+      $(new_row).hide();
+      r.expanded = false;
+      this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded });
+    }
+    new_row = new_row.nextSibling;
+  }
+
+  return false;
+},
+
+expand: function(row)
+{
+  var depth, new_row;
+  var last_expanded_parent_depth;
+
+  if (row) {
+    row.expanded = true;
+    depth = row.depth;
+    new_row = row.obj.nextSibling;
+    this.update_expando(row.uid, true);
+    this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded });
+  }
+  else {
+    var tbody = this.list.tBodies[0];
+    new_row = tbody.firstChild;
+    depth = 0;
+    last_expanded_parent_depth = 0;
+  }
+
+  while (new_row) {
+    if (new_row.nodeType == 1) {
+      var r = this.rows[new_row.uid];
+      if (r) {
+        if (row && (!r.depth || r.depth <= depth))
+          break;
+
+        if (r.parent_uid) {
+          var p = this.rows[r.parent_uid];
+          if (p && p.expanded) {
+            if ((row && p == row) || last_expanded_parent_depth >= p.depth - 1) {
+              last_expanded_parent_depth = p.depth;
+              $(new_row).show();
+              r.expanded = true;
+              this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded });
+            }
+          }
+          else
+            if (row && (! p || p.depth <= depth))
+              break;
+        }
+      }
+    }
+    new_row = new_row.nextSibling;
+  }
+
+  return false;
+},
+
+
+collapse_all: function(row)
+{
+  var depth, new_row;
+  var r;
+
+  if (row) {
+    row.expanded = false;
+    depth = row.depth;
+    new_row = row.obj.nextSibling;
+    this.update_expando(row.uid);
+    this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded });
+    
+    // don't collapse sub-root tree in multiexpand mode 
+    if (depth && this.multiexpand)
+      return false; 
+  }
+  else {
+    var tbody = this.list.tBodies[0];
+    new_row = tbody.firstChild;
+    depth = 0;
+  }
+
+  while (new_row) {
+    if (new_row.nodeType == 1) {
+      var r = this.rows[new_row.uid];
+      if (r) {
+        if (row && (!r.depth || r.depth <= depth))
+          break;
+
+        if (row || r.depth)
+          $(new_row).hide();
+        if (r.has_children) {
+          r.expanded = false;
+          this.update_expando(r.uid);
+          this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded });
+        }
+      }
+    }
+    new_row = new_row.nextSibling;
+  }
+
+  return false;
+},
+
+expand_all: function(row)
+{
+  var depth, new_row;
+  var r;
+
+  if (row) {
+    row.expanded = true;
+    depth = row.depth;
+    new_row = row.obj.nextSibling;
+    this.update_expando(row.uid, true);
+    this.triggerEvent('expandcollapse', { uid:row.uid, expanded:row.expanded });
+  }
+  else {
+    var tbody = this.list.tBodies[0];
+    new_row = tbody.firstChild;
+    depth = 0;
+  }
+
+  while (new_row) {
+    if (new_row.nodeType == 1) {
+      var r = this.rows[new_row.uid];
+      if (r) {
+        if (row && r.depth <= depth)
+          break;
+
+        $(new_row).show();
+        if (r.has_children) {
+          r.expanded = true;
+          this.update_expando(r.uid, true);
+          this.triggerEvent('expandcollapse', { uid:r.uid, expanded:r.expanded });
+        }
+      }
+    }
+    new_row = new_row.nextSibling;
+  }
+  return false;
+},
+
+update_expando: function(uid, expanded)
+{
+  var expando = document.getElementById('rcmexpando' + uid);
+  if (expando)
+    expando.className = expanded ? 'expanded' : 'collapsed';
+},
+
+
 /**
- * get next/previous/last rows that are not hidden
+ * get first/next/previous/last rows that are not hidden
  */
 get_next_row: function()
 {
@@ -344,6 +550,20 @@
     new_row = new_row.previousSibling;
 
   return new_row;
+},
+
+get_first_row: function()
+{
+  if (this.rowcount)
+    {
+    var rows = this.list.tBodies[0].rows;
+
+    for(var i=0; i<rows.length-1; i++)
+      if(rows[i].id && String(rows[i].id).match(/rcmrow([a-z0-9\-_=\+\/]+)/i) && this.rows[RegExp.$1] != null)
+	return RegExp.$1;
+    }
+
+  return null;
 },
 
 get_last_row: function()
@@ -451,6 +671,62 @@
 
 
 /**
+ * Select first row 
+ */
+select_first: function(mod_key)
+{
+  var row = this.get_first_row();
+  if (row && mod_key) {
+    this.shift_select(row, mod_key);
+    this.triggerEvent('select');
+    this.scrollto(row);
+  }
+  else if (row)
+    this.select(row);
+},
+
+
+/**
+ * Select last row 
+ */
+select_last: function(mod_key)
+{
+  var row = this.get_last_row();
+  if (row && mod_key) {
+    this.shift_select(row, mod_key);
+    this.triggerEvent('select');
+    this.scrollto(row);    
+  }
+  else if (row)
+    this.select(row);
+},
+
+
+/**
+ * Add all childs of the given row to selection
+ */
+select_childs: function(uid)
+{
+  if (!this.rows[uid] || !this.rows[uid].has_children)
+    return;
+  
+  var depth = this.rows[uid].depth;
+  var row = this.rows[uid].obj.nextSibling;
+  while (row) {
+    if (row.nodeType == 1) {
+      if ((r = this.rows[row.uid])) {
+        if (!r.depth || r.depth <= depth)
+          break;
+        if (!this.in_selection(r.uid))
+          this.select_row(r.uid, CONTROL_KEY);
+      }
+    }
+    row = row.nextSibling;
+  }
+},
+
+
+/**
  * Perform selection when shift key is pressed
  */
 shift_select: function(id, control)
@@ -469,13 +745,15 @@
   {
     if ((this.rows[n].obj.rowIndex >= i) && (this.rows[n].obj.rowIndex <= j))
     {
-      if (!this.in_selection(n))
+      if (!this.in_selection(n)) {
         this.highlight_row(n, true);
+      }
     }
     else
     {
-      if  (this.in_selection(n) && !control)
+      if  (this.in_selection(n) && !control) {
         this.highlight_row(n, true);
+      }
     }
   }
 },
@@ -490,7 +768,7 @@
     if (this.selection[n]==id)
       return true;
 
-  return false;    
+  return false;
 },
 
 
@@ -541,7 +819,7 @@
   var select_before = this.selection.join(',');
   
   for (var n in this.rows)
-    this.highlight_row(n, true);    
+    this.highlight_row(n, true);
 
   // trigger event if selection changed
   if (this.selection.join(',') != select_before)
@@ -629,7 +907,7 @@
     }
     else  // unselect row
     {
-      var p = find_in_array(id, this.selection);
+      var p = jQuery.inArray(id, this.selection);
       var a_pre = this.selection.slice(0, p);
       var a_post = this.selection.slice(p+1, this.selection.length);
       this.selection = a_pre.concat(a_post);
@@ -659,6 +937,22 @@
       // Stop propagation so that the browser doesn't scroll
       rcube_event.cancel(e);
       return this.use_arrow_key(keyCode, mod_key);
+    case 61:
+    case 107: // Plus sign on a numeric keypad (fc11 + firefox 3.5.2)
+    case 109:
+    case 32:
+      // Stop propagation
+      rcube_event.cancel(e);
+      var ret = this.use_plusminus_key(keyCode, mod_key);
+      this.key_pressed = keyCode;
+      this.triggerEvent('keypress');
+      return ret;
+    case 36: // Home
+      this.select_first(mod_key);
+      return rcube_event.cancel(e);
+    case 35: // End
+      this.select_last(mod_key);
+      return rcube_event.cancel(e);
     default:
       this.shiftkey = e.shiftKey;
       this.key_pressed = keyCode;
@@ -686,6 +980,10 @@
     case 38: 
     case 63233:
     case 63232:
+    case 61:
+    case 107:
+    case 109:
+    case 32:
       if (!rcube_event.get_modifier(e) && this.focused)
         return rcube_event.cancel(e);
         
@@ -720,6 +1018,36 @@
 
 
 /**
+ * Special handling method for +/- keys
+ */
+use_plusminus_key: function(keyCode, mod_key)
+{
+  var selected_row = this.rows[this.last_selected];
+  if (!selected_row)
+    return;
+
+  if (keyCode == 32)
+    keyCode = selected_row.expanded ? 109 : 61;
+  if (keyCode == 61 || keyCode == 107)
+    if (mod_key == CONTROL_KEY || this.multiexpand)
+      this.expand_all(selected_row);
+    else
+     this.expand(selected_row);
+  else
+    if (mod_key == CONTROL_KEY || this.multiexpand)
+      this.collapse_all(selected_row);
+    else
+      this.collapse(selected_row);
+
+  var expando = document.getElementById('rcmexpando' + selected_row.uid);
+  if (expando)
+    expando.className = selected_row.expanded?'expanded':'collapsed';
+
+  return false;
+},
+
+
+/**
  * Try to scroll the list to make the specified row visible
  */
 scrollto: function(id)
@@ -728,6 +1056,13 @@
   if (row && this.frame)
   {
     var scroll_to = Number(row.offsetTop);
+
+    // expand thread if target row is hidden (collapsed)
+    if (!scroll_to && this.rows[id].parent_uid) {
+      var parent = this.find_root(this.rows[id].uid);
+      this.expand_all(this.rows[parent]);
+      scroll_to = Number(row.offsetTop);
+    }
 
     if (scroll_to < Number(this.frame.scrollTop))
       this.frame.scrollTop = scroll_to;
@@ -752,10 +1087,19 @@
   
     if (!this.draglayer)
       this.draglayer = $('<div>').attr('id', 'rcmdraglayer').css({ position:'absolute', display:'none', 'z-index':2000 }).appendTo(document.body);
+      
+    // also select childs of (collapsed) threads for dragging
+    var selection = $.merge([], this.selection);
+    var depth, row, uid, r;
+    for (var n=0; n < selection.length; n++) {
+      uid = selection[n];
+      if (this.rows[uid].has_children && !this.rows[uid].expanded)
+        this.select_childs(uid);
+    }
 
-    // get subjects of selectedd messages
+    // get subjects of selected messages
     var names = '';
-    var c, i, node, subject, obj;
+    var c, i, subject, obj;
     for(var n=0; n<this.selection.length; n++)
     {
       if (n>12)  // only show 12 lines
@@ -764,24 +1108,29 @@
         break;
       }
 
-      if (this.rows[this.selection[n]].obj)
+      if (obj = this.rows[this.selection[n]].obj)
       {
-        obj = this.rows[this.selection[n]].obj;
         subject = '';
 
-        for(c=0, i=0; i<obj.childNodes.length; i++)
+        for (c=0, i=0; i<obj.childNodes.length; i++)
         {
-          if (obj.childNodes[i].nodeName == 'TD')
+	  if (obj.childNodes[i].nodeName == 'TD')
           {
-            if (((node = obj.childNodes[i].firstChild) && (node.nodeType==3 || node.nodeName=='A')) &&
-              (this.subject_col < 0 || (this.subject_col >= 0 && this.subject_col == c)))
-            {
-	      if (n == 0) {
-	        if (node.nodeType == 3)
-		  this.drag_start_pos = $(obj.childNodes[i]).offset();
-		else
-                  this.drag_start_pos = $(node).offset();
+            if (n == 0)
+	      this.drag_start_pos = $(obj.childNodes[i]).offset();
+
+	    if (this.subject_col < 0 || (this.subject_col >= 0 && this.subject_col == c))
+	    {
+	      var node, tmp_node, nodes = obj.childNodes[i].childNodes;
+	      // find text node
+	      for (m=0; m<nodes.length; m++) {
+	        if ((tmp_node = obj.childNodes[i].childNodes[m]) && (tmp_node.nodeType==3 || tmp_node.nodeName=='A'))
+	          node = tmp_node;
 	      }
+	      
+	      if (!node)
+	        break;
+
               subject = node.nodeType==3 ? node.data : node.innerHTML;
 	      // remove leading spaces
 	      subject = subject.replace(/^\s+/i, '');
@@ -835,7 +1184,7 @@
   rcube_event.remove_listener({element:document, event:'mousemove', object:this, method:'drag_mouse_move'});
   rcube_event.remove_listener({element:document, event:'mouseup', object:this, method:'drag_mouse_up'});
 
-  var iframes = document.getElementsByTagName('IFRAME');
+  var iframes = document.getElementsByTagName('iframe');
   for (var n in iframes) {
     var iframedoc;
     
@@ -869,7 +1218,7 @@
 set_background_mode: function(flag)
 {
   if (flag) {
-    this.background = document.createElement('TBODY');
+    this.background = document.createElement('tbody');
   } else if (this.background) {
     this.list.replaceChild(this.background, this.list.tBodies[0]);
     this.background = null;

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