1 files changed, 342 insertions, 0 deletions
diff --git a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/event/handler/FocusHandler.js b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/event/handler/FocusHandler.js
new file mode 100644
index 0000000000..2006adb569
--- /dev/null
+++ b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/event/handler/FocusHandler.js
@@ -0,0 +1,342 @@
+/* ************************************************************************
+
+   qooxdoo - the new era of web development
+
+   http://qooxdoo.org
+
+   Copyright:
+     2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org
+
+   License:
+     LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
+
+   Authors:
+     * Sebastian Werner (wpbasti)
+     * Andreas Ecker (ecker)
+
+************************************************************************ */
+
+/* ************************************************************************
+
+#module(ui_core)
+#optional(qx.ui.core.Parent)
+#optional(qx.ui.basic.Terminator)
+
+************************************************************************ */
+
+/*!
+  This object gets an instance in each focus root and manage the focus handling for it.
+*/
+qx.OO.defineClass("qx.event.handler.FocusHandler", qx.core.Target,
+function(vWidget)
+{
+  qx.core.Target.call(this);
+
+  if (qx.util.Validation.isValidObject(vWidget)) {
+    this._attachedWidget = vWidget;
+  }
+});
+
+qx.event.handler.FocusHandler.mouseFocus = false;
+
+
+
+
+/*
+---------------------------------------------------------------------------
+  UTILITIES
+---------------------------------------------------------------------------
+*/
+
+qx.Proto.getAttachedWidget = function() {
+  return this._attachedWidget;
+}
+
+
+
+
+
+
+/*
+---------------------------------------------------------------------------
+  TAB-EVENT HANDLING
+---------------------------------------------------------------------------
+*/
+
+// Check for TAB pressed
+// * use keydown on mshtml
+// * use keypress on vAll other (correct) browsers
+// = same behaviour
+qx.event.handler.FocusHandler.tabEventType = qx.sys.Client.getInstance().isMshtml() ? "keydown" : "keypress";
+
+qx.Proto._onkeyevent = function(vContainer, vEvent)
+{
+  if (vEvent.getKeyIdentifier() != "Tab") {
+    return;
+  }
+
+  // Stop all key-events with a TAB keycode
+  vEvent.stopPropagation();
+  vEvent.preventDefault();
+
+  // But only react on the one to use for this browser.
+  if (vEvent.getType() != qx.event.handler.FocusHandler.tabEventType) {
+    return;
+  }
+
+  qx.event.handler.FocusHandler.mouseFocus = false;
+
+  var vCurrent = this.getAttachedWidget().getFocusedChild();
+
+  // Support shift key to reverse widget detection order
+  if(!vEvent.getShiftKey()) {
+    var vNext = vCurrent ? this.getWidgetAfter(vContainer, vCurrent) : this.getFirstWidget(vContainer);
+  } else {
+    var vNext = vCurrent ? this.getWidgetBefore(vContainer, vCurrent) : this.getLastWidget(vContainer);
+  }
+
+  // If there was a widget found, focus it
+  if(vNext)
+  {
+    vNext.setFocused(true);
+    vNext._ontabfocus();
+  }
+}
+
+qx.Proto.compareTabOrder = function(c1, c2)
+{
+  // Sort-Check #1: Tab-Index
+  if(c1 == c2) {
+    return 0;
+  }
+
+  var t1 = c1.getTabIndex();
+  var t2 = c2.getTabIndex();
+
+  // The following are some ideas to handle focus after tabindex.
+
+  // Sort-Check #2: Top-Position
+  if(t1 != t2) {
+    return t1 - t2;
+  }
+
+  var y1 = qx.dom.Location.getPageBoxTop(c1.getElement());
+  var y2 = qx.dom.Location.getPageBoxTop(c2.getElement());
+
+  if(y1 != y2) {
+    return y1 - y2;
+  }
+
+  // Sort-Check #3: Left-Position
+  var x1 = qx.dom.Location.getPageBoxLeft(c1.getElement());
+  var x2 = qx.dom.Location.getPageBoxLeft(c2.getElement());
+
+  if(x1 != x2) {
+    return x1 - x2;
+  }
+
+  // Sort-Check #4: zIndex
+  var z1 = c1.getZIndex();
+  var z2 = c2.getZIndex();
+
+  if(z1 != z2) {
+    return z1 - z2;
+  }
+
+  return 0;
+}
+
+
+
+
+
+
+/*
+---------------------------------------------------------------------------
+  UTILITIES FOR TAB HANDLING
+---------------------------------------------------------------------------
+*/
+
+qx.Proto.getFirstWidget = function(vParentContainer) {
+  return this._getFirst(vParentContainer, null);
+}
+
+qx.Proto.getLastWidget = function(vParentContainer) {
+  return this._getLast(vParentContainer, null);
+}
+
+qx.Proto.getWidgetAfter = function(vParentContainer, vWidget)
+{
+  if(vParentContainer == vWidget) {
+    return this.getFirstWidget(vParentContainer);
+  }
+
+  if(vWidget.getAnonymous()) {
+    vWidget = vWidget.getParent();
+  }
+
+  if(vWidget == null) {
+    return [];
+  }
+
+  var vAll = [];
+
+  this._getAllAfter(vParentContainer, vWidget, vAll);
+
+  vAll.sort(this.compareTabOrder);
+
+  return vAll.length > 0 ? vAll[0] : this.getFirstWidget(vParentContainer);
+}
+
+qx.Proto.getWidgetBefore = function(vParentContainer, vWidget)
+{
+  if(vParentContainer == vWidget) {
+    return this.getLastWidget(vParentContainer);
+  }
+
+  if(vWidget.getAnonymous()) {
+    vWidget = vWidget.getParent();
+  }
+
+  if(vWidget == null) {
+    return [];
+  }
+
+  var vAll = [];
+
+  this._getAllBefore(vParentContainer, vWidget, vAll);
+
+  vAll.sort(this.compareTabOrder);
+
+  var vChildrenLength = vAll.length;
+  return vChildrenLength > 0 ? vAll[vChildrenLength-1] : this.getLastWidget(vParentContainer);
+}
+
+qx.Proto._getAllAfter = function(vParent, vWidget, vArray)
+{
+  var vChildren = vParent.getChildren();
+  var vCurrentChild;
+  var vChildrenLength = vChildren.length;
+
+  for (var i = 0; i < vChildrenLength; i++)
+  {
+    vCurrentChild = vChildren[i];
+
+    if(!(vCurrentChild instanceof qx.ui.core.Parent) && !(vCurrentChild instanceof qx.ui.basic.Terminator)) {
+      continue;
+    }
+
+    if(vCurrentChild.isFocusable() && vCurrentChild.getTabIndex() > 0 && this.compareTabOrder(vWidget, vCurrentChild) < 0) {
+      vArray.push(vChildren[i]);
+    }
+
+    if(!vCurrentChild.isFocusRoot() && vCurrentChild instanceof qx.ui.core.Parent) {
+      this._getAllAfter(vCurrentChild, vWidget, vArray);
+    }
+  }
+}
+
+qx.Proto._getAllBefore = function(vParent, vWidget, vArray)
+{
+  var vChildren = vParent.getChildren();
+  var vCurrentChild;
+  var vChildrenLength = vChildren.length;
+
+  for (var i = 0; i < vChildrenLength; i++)
+  {
+    vCurrentChild = vChildren[i];
+
+    if(!(vCurrentChild instanceof qx.ui.core.Parent) && !(vCurrentChild instanceof qx.ui.basic.Terminator)) {
+      continue;
+    }
+
+    if(vCurrentChild.isFocusable() && vCurrentChild.getTabIndex() > 0 && this.compareTabOrder(vWidget, vCurrentChild) > 0) {
+      vArray.push(vCurrentChild);
+    }
+
+    if(!vCurrentChild.isFocusRoot() && vCurrentChild instanceof qx.ui.core.Parent) {
+      this._getAllBefore(vCurrentChild, vWidget, vArray);
+    }
+  }
+}
+
+qx.Proto._getFirst = function(vParent, vFirstWidget)
+{
+  var vChildren = vParent.getChildren();
+  var vCurrentChild;
+  var vChildrenLength = vChildren.length;
+
+  for (var i = 0; i < vChildrenLength; i++)
+  {
+    vCurrentChild = vChildren[i];
+
+    if(!(vCurrentChild instanceof qx.ui.core.Parent) && !(vCurrentChild instanceof qx.ui.basic.Terminator)) {
+      continue;
+    }
+
+    if(vCurrentChild.isFocusable() && vCurrentChild.getTabIndex() > 0)
+    {
+      if(vFirstWidget == null || this.compareTabOrder(vCurrentChild, vFirstWidget) < 0) {
+        vFirstWidget = vCurrentChild;
+      }
+    }
+
+    if(!vCurrentChild.isFocusRoot() && vCurrentChild instanceof qx.ui.core.Parent) {
+      vFirstWidget = this._getFirst(vCurrentChild, vFirstWidget);
+    }
+  }
+
+  return vFirstWidget;
+}
+
+qx.Proto._getLast = function(vParent, vLastWidget)
+{
+  var vChildren = vParent.getChildren();
+  var vCurrentChild;
+  var vChildrenLength = vChildren.length;
+
+  for (var i = 0; i < vChildrenLength; i++)
+  {
+    vCurrentChild = vChildren[i];
+
+    if(!(vCurrentChild instanceof qx.ui.core.Parent) && !(vCurrentChild instanceof qx.ui.basic.Terminator)) {
+      continue;
+    }
+
+    if(vCurrentChild.isFocusable() && vCurrentChild.getTabIndex() > 0)
+    {
+      if(vLastWidget == null || this.compareTabOrder(vCurrentChild, vLastWidget) > 0) {
+        vLastWidget = vCurrentChild;
+      }
+    }
+
+    if(!vCurrentChild.isFocusRoot() && vCurrentChild instanceof qx.ui.core.Parent) {
+      vLastWidget = this._getLast(vCurrentChild, vLastWidget);
+    }
+  }
+
+  return vLastWidget;
+}
+
+
+
+
+
+
+
+/*
+---------------------------------------------------------------------------
+  DISPOSER
+---------------------------------------------------------------------------
+*/
+
+qx.Proto.dispose = function()
+{
+  if (this.getDisposed()) {
+    return;
+  }
+
+  this._attachedWidget = null;
+
+  qx.core.Target.prototype.dispose.call(this);
+}