зеркало из https://github.com/mozilla/gecko-dev.git
299 строки
8.5 KiB
C++
299 строки
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla XForms support.
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*
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* The Initial Developer of the Original Code is
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* Novell, Inc.
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Allan Beaufour <abeaufour@novell.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIXTFXMLVisualWrapper.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsIDOM3Node.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMEventTarget.h"
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#include "nsIDOMSerializer.h"
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#include "nsIDOMXPathResult.h"
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#include "nsXFormsControlStub.h"
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#include "nsIModelElementPrivate.h"
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#include "nsIXFormsContextControl.h"
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#include "nsIXFormsRepeatItemElement.h"
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#include "nsIXFormsRepeatElement.h"
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#include "nsXFormsUtils.h"
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#ifdef DEBUG
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//#define DEBUG_XF_CONTEXTCONTAINER
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#endif
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/**
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* Implementation of \<contextcontainer\>.
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*
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* \<contextcontainer\> is a pseudo-element that is wrapped around each row in
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* an "unrolled" \<repeat\> or \<itemset\>. @see nsXFormsRepeatElement and
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* nsXFormsItemSetElement.
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*
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* @todo Support ::repeat-item and ::repeat-index pseudo-elements. (XXX)
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* @see http://www.w3.org/TR/xforms/sliceF.html#id2645142
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* @see http://bugzilla.mozilla.org/show_bug.cgi?id=271724
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*/
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class nsXFormsContextContainer : public nsXFormsControlStub,
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public nsIXFormsRepeatItemElement
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{
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protected:
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/** The HTML representation for the node */
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nsCOMPtr<nsIDOMElement> mHTMLElement;
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public:
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NS_DECL_ISUPPORTS_INHERITED
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// nsIXTFXMLVisual overrides
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NS_IMETHOD OnCreated(nsIXTFXMLVisualWrapper *aWrapper);
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// nsIXTFVisual overrides
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NS_IMETHOD HandleDefault(nsIDOMEvent *aEvent, PRBool *aHandled);
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NS_IMETHOD GetVisualContent(nsIDOMElement **aElement);
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NS_IMETHOD GetInsertionPoint(nsIDOMElement **aElement);
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// nsIXTFElement overrides
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NS_IMETHOD OnDestroyed();
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NS_IMETHOD CloneState(nsIDOMElement *aElement);
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// nsIXFormsControl
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NS_IMETHOD Bind();
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NS_IMETHOD Refresh();
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NS_IMETHOD SetContextNode(nsIDOMNode *aContextNode);
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// nsIXFormsRepeatItemElement
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NS_DECL_NSIXFORMSREPEATITEMELEMENT
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};
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NS_IMPL_ISUPPORTS_INHERITED1(nsXFormsContextContainer,
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nsXFormsControlStub,
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nsIXFormsRepeatItemElement)
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// nsIXTFXMLVisual
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NS_IMETHODIMP
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nsXFormsContextContainer::OnCreated(nsIXTFXMLVisualWrapper *aWrapper)
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{
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#ifdef DEBUG_XF_CONTEXTCONTAINER
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printf("nsXFormsContextContainer::OnCreated(aWrapper=%p)\n", (void*) aWrapper);
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#endif
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nsresult rv = nsXFormsControlStub::OnCreated(aWrapper);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMDocument> domDoc;
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rv = mElement->GetOwnerDocument(getter_AddRefs(domDoc));
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NS_ENSURE_SUCCESS(rv, rv);
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PRBool isBlock;
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// If we're a "contextcontainer" element, then we create a div child.
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// If not, we're a "contextcontainer-inline" element and create a span child.
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nsAutoString localName;
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mElement->GetLocalName(localName);
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isBlock = localName.EqualsLiteral("contextcontainer");
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// Create UI element
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rv = domDoc->CreateElementNS(NS_LITERAL_STRING("http://www.w3.org/1999/xhtml"),
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isBlock ? NS_LITERAL_STRING("div") :
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NS_LITERAL_STRING("span"),
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getter_AddRefs(mHTMLElement));
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXFormsContextContainer::GetVisualContent(nsIDOMElement **aElement)
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{
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#ifdef DEBUG_XF_CONTEXTCONTAINER
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printf("nsXFormsContextContainer::GetVisualContent()\n");
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#endif
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NS_IF_ADDREF(*aElement = mHTMLElement);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXFormsContextContainer::GetInsertionPoint(nsIDOMElement **aElement)
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{
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#ifdef DEBUG_XF_CONTEXTCONTAINER
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printf("nsXFormsContextContainer::GetInsertionPoint()\n");
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#endif
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NS_IF_ADDREF(*aElement = mHTMLElement);
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return NS_OK;
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}
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// nsIXTFElement
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NS_IMETHODIMP
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nsXFormsContextContainer::HandleDefault(nsIDOMEvent *aEvent,
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PRBool *aHandled)
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{
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if (!aEvent || !mElement)
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return NS_OK;
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nsAutoString type;
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aEvent->GetType(type);
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if (!type.EqualsLiteral("focus"))
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return nsXFormsControlStub::HandleDefault(aEvent, aHandled);
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/*
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* Either we, or an element we contain, has gotten focus, so we need to set
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* the repeat index. This is done through the \<repeat\> the
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* nsXFormsContextContainer belongs to.
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*
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* Start by finding the \<repeat\> (our grandparent):
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* <pre>
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* <repeat> <-- gParent
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* <div>
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* <contextcontainer\> <-- this
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* </div>
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* </repeat>
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* </pre>
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*/
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nsCOMPtr<nsIDOMNode> parent;
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mElement->GetParentNode(getter_AddRefs(parent));
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NS_ASSERTION(parent, "how can we get focus without a parent?");
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nsCOMPtr<nsIDOMNode> gParent;
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parent->GetParentNode(getter_AddRefs(gParent));
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nsCOMPtr<nsIXFormsRepeatElement> repeat = do_QueryInterface(gParent);
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if (!repeat)
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// Not a child to a \<repeat\>
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return NS_OK;
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// Find our context position
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nsAutoString posString;
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mElement->GetAttribute(NS_LITERAL_STRING("contextposition"), posString);
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NS_ASSERTION(!posString.IsEmpty(), "@contextposition n/a or empty on repeat child?");
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PRInt32 errCode;
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PRUint32 pos = posString.ToInteger(&errCode);
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NS_ASSERTION(!errCode, "@contextposition != integer on repeat child?");
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// Tell \<repeat\> about the new index position
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return repeat->SetIndex(&pos, PR_FALSE);
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}
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NS_IMETHODIMP
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nsXFormsContextContainer::OnDestroyed()
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{
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mHTMLElement = nsnull;
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return nsXFormsControlStub::OnDestroyed();
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}
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NS_IMETHODIMP
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nsXFormsContextContainer::CloneState(nsIDOMElement *aElement)
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{
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nsCOMPtr<nsIXFormsContextControl> other = do_QueryInterface(aElement);
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if (!other) {
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NS_WARNING("CloneState called with a different type source node");
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return NS_ERROR_FAILURE;
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}
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nsAutoString modelID;
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PRInt32 position, size;
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other->GetContext(modelID, getter_AddRefs(mBoundNode), &position, &size);
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return NS_OK;
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}
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// nsIXFormsContextControl
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NS_IMETHODIMP
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nsXFormsContextContainer::SetContextNode(nsIDOMNode *aContextNode)
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{
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mBoundNode = aContextNode;
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return NS_OK;
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}
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// nsIXFormsControl
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NS_IMETHODIMP
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nsXFormsContextContainer::Bind()
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{
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return NS_OK;
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}
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nsresult
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nsXFormsContextContainer::Refresh()
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{
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return NS_OK;
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}
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// nsIXFormsRepeatItemElement
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/**
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* @todo Should set/get pseudo-element, not attribute (XXX)
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* @see http://bugzilla.mozilla.org/show_bug.cgi?id=271724
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*/
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NS_IMETHODIMP
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nsXFormsContextContainer::SetIndexState(PRBool aHasIndex)
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{
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if (mElement) {
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NS_NAMED_LITERAL_STRING(repIndex, "repeat-index");
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if (aHasIndex) {
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mElement->SetAttribute(repIndex,
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NS_LITERAL_STRING("1"));
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} else {
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mElement->RemoveAttribute(repIndex);
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXFormsContextContainer::GetIndexState(PRBool *aHasIndex)
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{
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return mElement->HasAttribute(NS_LITERAL_STRING("repeat-index"), aHasIndex);
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}
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// Factory
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NS_HIDDEN_(nsresult)
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NS_NewXFormsContextContainer(nsIXTFElement **aResult)
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{
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*aResult = new nsXFormsContextContainer();
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if (!*aResult)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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