mirror of
https://github.com/mozilla/gecko-dev.git
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2569 lines
94 KiB
C++
2569 lines
94 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: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsCOMPtr.h"
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#include "nsReadableUtils.h"
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#include "nsComboboxControlFrame.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIFrameManager.h"
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#include "nsFormControlFrame.h"
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#include "nsIHTMLContent.h"
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#include "nsHTMLAtoms.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsHTMLParts.h"
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#include "nsIFormControl.h"
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#include "nsINameSpaceManager.h"
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#include "nsLayoutAtoms.h"
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#include "nsIDOMElement.h"
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#include "nsIListControlFrame.h"
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#include "nsIDOMHTMLCollection.h"
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#include "nsIDOMHTMLSelectElement.h"
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#include "nsIDOMHTMLOptionElement.h"
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#include "nsIDOMNSHTMLOptionCollectn.h"
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#include "nsIPresShell.h"
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#include "nsIPresState.h"
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#include "nsIDeviceContext.h"
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#include "nsIView.h"
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#include "nsIScrollableView.h"
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#include "nsIEventStateManager.h"
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#include "nsIDOMNode.h"
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#include "nsIPrivateDOMEvent.h"
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#include "nsISupportsArray.h"
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#include "nsISelectControlFrame.h"
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#include "nsXPCOM.h"
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#include "nsISupportsPrimitives.h"
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#include "nsIComponentManager.h"
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#include "nsITextContent.h"
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#include "nsTextFragment.h"
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#include "nsCSSFrameConstructor.h"
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#include "nsIDocument.h"
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#include "nsINodeInfo.h"
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#include "nsIScrollableFrame.h"
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#include "nsIScrollableView.h"
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#include "nsListControlFrame.h"
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#include "nsIElementFactory.h"
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#include "nsContentCID.h"
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#ifdef ACCESSIBILITY
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#include "nsIAccessibilityService.h"
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#endif
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#include "nsIServiceManager.h"
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#include "nsIDOMNode.h"
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#include "nsGUIEvent.h"
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#include "nsAutoPtr.h"
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static NS_DEFINE_CID(kTextNodeCID, NS_TEXTNODE_CID);
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static NS_DEFINE_CID(kHTMLElementFactoryCID, NS_HTML_ELEMENT_FACTORY_CID);
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#ifdef MOZ_XUL
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#include "nsIXULDocument.h" // Temporary fix for Bug 36558
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#endif
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#ifdef DO_NEW_REFLOW
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#include "nsIFontMetrics.h"
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#endif
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#define FIX_FOR_BUG_53259
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// Drop down list event management.
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// The combo box uses the following strategy for managing the drop-down list.
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// If the combo box or it's arrow button is clicked on the drop-down list is displayed
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// If mouse exit's the combo box with the drop-down list displayed the drop-down list
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// is asked to capture events
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// The drop-down list will capture all events including mouse down and up and will always
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// return with ListWasSelected method call regardless of whether an item in the list was
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// actually selected.
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// The ListWasSelected code will turn off mouse-capture for the drop-down list.
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// The drop-down list does not explicitly set capture when it is in the drop-down mode.
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//XXX: This is temporary. It simulates psuedo states by using a attribute selector on
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const PRInt32 kSizeNotSet = -1;
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/**
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* Helper class that listens to the combo boxes button. If the button is pressed the
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* combo box is toggled to open or close. this is used by Accessibility which presses
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* that button Programmatically.
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*/
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class nsComboButtonListener: public nsIDOMMouseListener
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{
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public:
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NS_DECL_ISUPPORTS
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NS_IMETHOD HandleEvent(nsIDOMEvent* anEvent) { return PR_FALSE; }
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NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent) { return PR_FALSE; }
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NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent) { return PR_FALSE; }
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NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent) { return PR_FALSE; }
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NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent) { return PR_FALSE; }
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NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent) { return PR_FALSE; }
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NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent)
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{
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PRBool isDroppedDown;
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mComboBox->IsDroppedDown(&isDroppedDown);
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mComboBox->ShowDropDown(!isDroppedDown);
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return PR_FALSE;
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}
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nsComboButtonListener(nsComboboxControlFrame* aCombobox)
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{
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mComboBox = aCombobox;
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}
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virtual ~nsComboButtonListener() {}
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nsComboboxControlFrame* mComboBox;
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};
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NS_IMPL_ISUPPORTS1(nsComboButtonListener, nsIDOMMouseListener)
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// static class data member for Bug 32920
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nsComboboxControlFrame * nsComboboxControlFrame::mFocused = nsnull;
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nsresult
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NS_NewComboboxControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRUint32 aStateFlags)
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{
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NS_PRECONDITION(aNewFrame, "null OUT ptr");
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if (nsnull == aNewFrame) {
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return NS_ERROR_NULL_POINTER;
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}
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nsComboboxControlFrame* it = new (aPresShell) nsComboboxControlFrame;
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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// set the state flags (if any are provided)
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it->AddStateBits(aStateFlags);
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*aNewFrame = it;
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return NS_OK;
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}
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//-----------------------------------------------------------
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// Reflow Debugging Macros
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// These let us "see" how many reflow counts are happening
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//-----------------------------------------------------------
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#ifdef DO_REFLOW_COUNTER
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#define MAX_REFLOW_CNT 1024
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static PRInt32 gTotalReqs = 0;;
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static PRInt32 gTotalReflows = 0;;
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static PRInt32 gReflowControlCntRQ[MAX_REFLOW_CNT];
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static PRInt32 gReflowControlCnt[MAX_REFLOW_CNT];
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static PRInt32 gReflowInx = -1;
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#define REFLOW_COUNTER() \
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if (mReflowId > -1) \
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gReflowControlCnt[mReflowId]++;
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#define REFLOW_COUNTER_REQUEST() \
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if (mReflowId > -1) \
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gReflowControlCntRQ[mReflowId]++;
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#define REFLOW_COUNTER_DUMP(__desc) \
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if (mReflowId > -1) {\
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gTotalReqs += gReflowControlCntRQ[mReflowId];\
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gTotalReflows += gReflowControlCnt[mReflowId];\
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printf("** Id:%5d %s RF: %d RQ: %d %d/%d %5.2f\n", \
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mReflowId, (__desc), \
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gReflowControlCnt[mReflowId], \
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gReflowControlCntRQ[mReflowId],\
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gTotalReflows, gTotalReqs, float(gTotalReflows)/float(gTotalReqs)*100.0f);\
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}
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#define REFLOW_COUNTER_INIT() \
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if (gReflowInx < MAX_REFLOW_CNT) { \
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gReflowInx++; \
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mReflowId = gReflowInx; \
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gReflowControlCnt[mReflowId] = 0; \
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gReflowControlCntRQ[mReflowId] = 0; \
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} else { \
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mReflowId = -1; \
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}
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// reflow messages
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#define REFLOW_DEBUG_MSG(_msg1) printf((_msg1))
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#define REFLOW_DEBUG_MSG2(_msg1, _msg2) printf((_msg1), (_msg2))
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#define REFLOW_DEBUG_MSG3(_msg1, _msg2, _msg3) printf((_msg1), (_msg2), (_msg3))
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#define REFLOW_DEBUG_MSG4(_msg1, _msg2, _msg3, _msg4) printf((_msg1), (_msg2), (_msg3), (_msg4))
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#else //-------------
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#define REFLOW_COUNTER_REQUEST()
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#define REFLOW_COUNTER()
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#define REFLOW_COUNTER_DUMP(__desc)
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#define REFLOW_COUNTER_INIT()
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#define REFLOW_DEBUG_MSG(_msg)
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#define REFLOW_DEBUG_MSG2(_msg1, _msg2)
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#define REFLOW_DEBUG_MSG3(_msg1, _msg2, _msg3)
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#define REFLOW_DEBUG_MSG4(_msg1, _msg2, _msg3, _msg4)
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#endif
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//------------------------------------------
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// This is for being VERY noisy
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//------------------------------------------
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#ifdef DO_VERY_NOISY
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#define REFLOW_NOISY_MSG(_msg1) printf((_msg1))
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#define REFLOW_NOISY_MSG2(_msg1, _msg2) printf((_msg1), (_msg2))
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#define REFLOW_NOISY_MSG3(_msg1, _msg2, _msg3) printf((_msg1), (_msg2), (_msg3))
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#define REFLOW_NOISY_MSG4(_msg1, _msg2, _msg3, _msg4) printf((_msg1), (_msg2), (_msg3), (_msg4))
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#else
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#define REFLOW_NOISY_MSG(_msg)
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#define REFLOW_NOISY_MSG2(_msg1, _msg2)
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#define REFLOW_NOISY_MSG3(_msg1, _msg2, _msg3)
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#define REFLOW_NOISY_MSG4(_msg1, _msg2, _msg3, _msg4)
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#endif
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//------------------------------------------
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// Displays value in pixels or twips
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//------------------------------------------
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#ifdef DO_PIXELS
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#define PX(__v) __v / 15
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#else
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#define PX(__v) __v
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#endif
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//------------------------------------------
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// Asserts if we return a desired size that
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// doesn't correctly match the mComputedWidth
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//------------------------------------------
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#ifdef DO_UNCONSTRAINED_CHECK
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#define UNCONSTRAINED_CHECK() \
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if (aReflowState.mComputedWidth != NS_UNCONSTRAINEDSIZE) { \
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nscoord width = aDesiredSize.width - borderPadding.left - borderPadding.right; \
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if (width != aReflowState.mComputedWidth) { \
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printf("aDesiredSize.width %d %d != aReflowState.mComputedWidth %d\n", aDesiredSize.width, width, aReflowState.mComputedWidth); \
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} \
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NS_ASSERTION(width == aReflowState.mComputedWidth, "Returning bad value when constrained!"); \
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}
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#else
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#define UNCONSTRAINED_CHECK()
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#endif
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//------------------------------------------------------
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//-- Done with macros
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//------------------------------------------------------
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nsComboboxControlFrame::nsComboboxControlFrame()
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: nsAreaFrame()
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{
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mPresContext = nsnull;
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mListControlFrame = nsnull;
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mDroppedDown = PR_FALSE;
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mDisplayFrame = nsnull;
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mButtonFrame = nsnull;
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mDropdownFrame = nsnull;
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mCacheSize.width = kSizeNotSet;
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mCacheSize.height = kSizeNotSet;
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mCachedAscent = kSizeNotSet;
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mCachedMaxElementWidth = kSizeNotSet;
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mCachedAvailableSize.width = kSizeNotSet;
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mCachedAvailableSize.height = kSizeNotSet;
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mCachedUncDropdownSize.width = kSizeNotSet;
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mCachedUncDropdownSize.height = kSizeNotSet;
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mCachedUncComboSize.width = kSizeNotSet;
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mCachedUncComboSize.height = kSizeNotSet;
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mItemDisplayWidth = 0;
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mGoodToGo = PR_FALSE;
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mNeedToFireOnChange = PR_FALSE;
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mRecentSelectedIndex = -1;
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//Shrink the area around it's contents
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//SetFlags(NS_BLOCK_SHRINK_WRAP);
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REFLOW_COUNTER_INIT()
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}
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//--------------------------------------------------------------
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nsComboboxControlFrame::~nsComboboxControlFrame()
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{
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REFLOW_COUNTER_DUMP("nsCCF");
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NS_IF_RELEASE(mPresContext);
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}
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//--------------------------------------------------------------
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// Frames are not refcounted, no need to AddRef
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NS_IMETHODIMP
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nsComboboxControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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NS_PRECONDITION(0 != aInstancePtr, "null ptr");
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(NS_GET_IID(nsIComboboxControlFrame))) {
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*aInstancePtr = (void*)(nsIComboboxControlFrame*)this;
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return NS_OK;
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} else if (aIID.Equals(NS_GET_IID(nsIFormControlFrame))) {
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*aInstancePtr = (void*)(nsIFormControlFrame*)this;
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return NS_OK;
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} else if (aIID.Equals(NS_GET_IID(nsIAnonymousContentCreator))) {
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*aInstancePtr = (void*)(nsIAnonymousContentCreator*)this;
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return NS_OK;
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} else if (aIID.Equals(NS_GET_IID(nsISelectControlFrame))) {
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*aInstancePtr = (void *)(nsISelectControlFrame*)this;
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return NS_OK;
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} else if (aIID.Equals(NS_GET_IID(nsIStatefulFrame))) {
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*aInstancePtr = (void*)(nsIStatefulFrame*)this;
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return NS_OK;
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} else if (aIID.Equals(NS_GET_IID(nsIRollupListener))) {
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*aInstancePtr = (void*)(nsIRollupListener*)this;
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return NS_OK;
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} else if (aIID.Equals(NS_GET_IID(nsIScrollableViewProvider))) {
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*aInstancePtr = (void*)(nsIScrollableViewProvider*)this;
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return NS_OK;
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}
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return nsAreaFrame::QueryInterface(aIID, aInstancePtr);
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}
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#ifdef ACCESSIBILITY
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NS_IMETHODIMP nsComboboxControlFrame::GetAccessible(nsIAccessible** aAccessible)
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{
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nsCOMPtr<nsIAccessibilityService> accService = do_GetService("@mozilla.org/accessibilityService;1");
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if (accService) {
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nsCOMPtr<nsIDOMNode> node = do_QueryInterface(mContent);
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return accService->CreateHTMLComboboxAccessible(node, mPresContext, aAccessible);
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}
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return NS_ERROR_FAILURE;
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}
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#endif
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NS_IMETHODIMP
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nsComboboxControlFrame::Init(nsIPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsStyleContext* aContext,
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nsIFrame* aPrevInFlow)
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{
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// Need to hold on the pres context because it is used later in methods
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// which don't have it passed in.
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mPresContext = aPresContext;
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NS_ADDREF(mPresContext);
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//-------------------------------
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// Start - Temporary fix for Bug 36558
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//-------------------------------
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mGoodToGo = PR_FALSE;
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nsIDocument* document = aContent->GetDocument();
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if (document) {
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#ifdef MOZ_XUL
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nsCOMPtr<nsIXULDocument> xulDoc(do_QueryInterface(document));
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mGoodToGo = xulDoc?PR_FALSE:PR_TRUE;
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#else
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mGoodToGo = PR_TRUE;
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#endif
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}
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//-------------------------------
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// Done - Temporary fix for Bug 36558
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//-------------------------------
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return nsAreaFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow);
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}
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// Initialize the text string in the combobox using either the current
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// selection in the list box or the first item item in the list box.
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|
void
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nsComboboxControlFrame::InitTextStr()
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{
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nsAutoString textToDisplay;
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PRInt32 selectedIndex;
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mListControlFrame->GetSelectedIndex(&selectedIndex);
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if (selectedIndex != -1) {
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mListControlFrame->GetOptionText(selectedIndex, textToDisplay);
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}
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mDisplayedIndex = selectedIndex;
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ActuallyDisplayText(textToDisplay, PR_FALSE);
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}
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|
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//--------------------------------------------------------------
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|
void
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nsComboboxControlFrame::InitializeControl(nsIPresContext* aPresContext)
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|
{
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|
nsFormControlHelper::Reset(this, aPresContext);
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|
}
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|
//--------------------------------------------------------------
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|
NS_IMETHODIMP_(PRInt32)
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|
nsComboboxControlFrame::GetFormControlType() const
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|
{
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return NS_FORM_SELECT;
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP
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|
nsComboboxControlFrame::GetFormContent(nsIContent*& aContent) const
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|
{
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aContent = GetContent();
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NS_IF_ADDREF(aContent);
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return NS_OK;
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP
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|
nsComboboxControlFrame::GetFont(nsIPresContext* aPresContext,
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const nsFont*& aFont)
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|
{
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return nsFormControlHelper::GetFont(this, aPresContext, mStyleContext, aFont);
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|
}
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//--------------------------------------------------------------
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nscoord
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nsComboboxControlFrame::GetVerticalBorderWidth(float aPixToTwip) const
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{
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return 0;
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}
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//--------------------------------------------------------------
|
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nscoord
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nsComboboxControlFrame::GetHorizontalBorderWidth(float aPixToTwip) const
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|
{
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return 0;
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|
}
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//--------------------------------------------------------------
|
|
nscoord
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|
nsComboboxControlFrame::GetVerticalInsidePadding(nsIPresContext* aPresContext,
|
|
float aPixToTwip,
|
|
nscoord aInnerHeight) const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
//--------------------------------------------------------------
|
|
nscoord
|
|
nsComboboxControlFrame::GetHorizontalInsidePadding(nsIPresContext* aPresContext,
|
|
float aPixToTwip,
|
|
nscoord aInnerWidth,
|
|
nscoord aCharWidth) const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
void
|
|
nsComboboxControlFrame::CheckFireOnChange()
|
|
{
|
|
// Fire onChange if selected index has changed due to keyboard
|
|
// (see nsListControlFrame::UpdateSelection)
|
|
if (mNeedToFireOnChange) {
|
|
PRInt32 selectedIndex;
|
|
mListControlFrame->GetSelectedIndex(&selectedIndex);
|
|
if (selectedIndex != mRecentSelectedIndex) {
|
|
// mNeedToFireOnChange will be set to false from within FireOnChange
|
|
mListControlFrame->FireOnChange();
|
|
} else {
|
|
// Need to set it to false anyway ... just in case
|
|
SetNeedToFireOnChange(PR_FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsComboboxControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
|
|
{
|
|
if (aOn) {
|
|
nsListControlFrame::ComboboxFocusSet();
|
|
mFocused = this;
|
|
|
|
// Store up the selected index so when we lose focus we can see if it's
|
|
// really changed
|
|
mListControlFrame->GetSelectedIndex(&mRecentSelectedIndex);
|
|
} else {
|
|
mFocused = nsnull;
|
|
if (mDroppedDown) {
|
|
mListControlFrame->ComboboxFinish(mDisplayedIndex);
|
|
} else {
|
|
CheckFireOnChange();
|
|
}
|
|
}
|
|
|
|
// This is needed on a temporary basis. It causes the focus
|
|
// rect to be drawn. This is much faster than ReResolvingStyle
|
|
// Bug 32920
|
|
Invalidate(mPresContext, nsRect(0,0,mRect.width,mRect.height), PR_TRUE);
|
|
|
|
// Make sure the content area gets updated for where the dropdown was
|
|
// This is only needed for embedding, the focus may go to
|
|
// the chrome that is not part of the Gecko system (Bug 83493)
|
|
nsIViewManager* vm = GetPresContext()->GetViewManager();
|
|
if (vm) {
|
|
vm->UpdateAllViews(NS_VMREFRESH_NO_SYNC);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsComboboxControlFrame::ScrollIntoView(nsIPresContext* aPresContext)
|
|
{
|
|
if (aPresContext) {
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
if (presShell) {
|
|
presShell->ScrollFrameIntoView(this,
|
|
NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE,NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
nsComboboxControlFrame::ShowPopup(PRBool aShowPopup)
|
|
{
|
|
nsIView* view = mDropdownFrame->GetView();
|
|
nsIViewManager* viewManager = view->GetViewManager();
|
|
|
|
if (aShowPopup) {
|
|
nsRect rect = mDropdownFrame->GetRect();
|
|
rect.x = rect.y = 0;
|
|
viewManager->ResizeView(view, rect);
|
|
nsIScrollableView* scrollingView;
|
|
if (NS_SUCCEEDED(view->QueryInterface(NS_GET_IID(nsIScrollableView), (void**)&scrollingView))) {
|
|
scrollingView->ComputeScrollOffsets(PR_TRUE);
|
|
}
|
|
viewManager->SetViewVisibility(view, nsViewVisibility_kShow);
|
|
} else {
|
|
viewManager->SetViewVisibility(view, nsViewVisibility_kHide);
|
|
nsRect emptyRect(0, 0, 0, 0);
|
|
viewManager->ResizeView(view, emptyRect);
|
|
}
|
|
|
|
// fire a popup dom event
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
nsMouseEvent event;
|
|
event.eventStructType = NS_EVENT;
|
|
event.message = aShowPopup ? NS_XUL_POPUP_SHOWING : NS_XUL_POPUP_HIDING;
|
|
event.isShift = PR_FALSE;
|
|
event.isControl = PR_FALSE;
|
|
event.isAlt = PR_FALSE;
|
|
event.isMeta = PR_FALSE;
|
|
event.clickCount = 0;
|
|
event.widget = nsnull;
|
|
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
nsresult rv = mPresContext->GetShell(getter_AddRefs(shell));
|
|
if (NS_SUCCEEDED(rv) && shell)
|
|
rv = shell->HandleDOMEventWithTarget(mContent, &event, &status);
|
|
}
|
|
|
|
// Show the dropdown list
|
|
|
|
void
|
|
nsComboboxControlFrame::ShowList(nsIPresContext* aPresContext, PRBool aShowList)
|
|
{
|
|
nsIWidget* widget = nsnull;
|
|
|
|
// Get parent view
|
|
nsIFrame * listFrame;
|
|
if (NS_OK == mListControlFrame->QueryInterface(NS_GET_IID(nsIFrame), (void **)&listFrame)) {
|
|
nsIView* view = listFrame->GetView();
|
|
NS_ASSERTION(view, "nsComboboxControlFrame view is null");
|
|
if (view) {
|
|
widget = view->GetWidget();
|
|
}
|
|
}
|
|
|
|
if (PR_TRUE == aShowList) {
|
|
ShowPopup(PR_TRUE);
|
|
mDroppedDown = PR_TRUE;
|
|
|
|
// The listcontrol frame will call back to the nsComboboxControlFrame's ListWasSelected
|
|
// which will stop the capture.
|
|
mListControlFrame->AboutToDropDown();
|
|
mListControlFrame->CaptureMouseEvents(aPresContext, PR_TRUE);
|
|
|
|
} else {
|
|
ShowPopup(PR_FALSE);
|
|
mDroppedDown = PR_FALSE;
|
|
}
|
|
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
presShell->FlushPendingNotifications(PR_FALSE);
|
|
|
|
if (widget)
|
|
widget->CaptureRollupEvents((nsIRollupListener *)this, mDroppedDown, aShowList);
|
|
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------
|
|
// this is in response to the MouseClick from the containing browse button
|
|
// XXX: TODO still need to get filters from accept attribute
|
|
void
|
|
nsComboboxControlFrame::MouseClicked(nsIPresContext* aPresContext)
|
|
{
|
|
//ToggleList(aPresContext);
|
|
}
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::ReflowComboChildFrame(nsIFrame* aFrame,
|
|
nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus,
|
|
nscoord aAvailableWidth,
|
|
nscoord aAvailableHeight)
|
|
{
|
|
// Constrain the child's width and height to aAvailableWidth and aAvailableHeight
|
|
nsSize availSize(aAvailableWidth, aAvailableHeight);
|
|
nsHTMLReflowState kidReflowState(aPresContext, aReflowState, aFrame,
|
|
availSize);
|
|
kidReflowState.mComputedWidth = aAvailableWidth;
|
|
kidReflowState.mComputedHeight = aAvailableHeight;
|
|
|
|
// ensure we start off hidden
|
|
if (aReflowState.reason == eReflowReason_Initial) {
|
|
nsIView* view = mDropdownFrame->GetView();
|
|
nsIViewManager* viewManager = view->GetViewManager();
|
|
viewManager->SetViewVisibility(view, nsViewVisibility_kHide);
|
|
nsRect emptyRect(0, 0, 0, 0);
|
|
viewManager->ResizeView(view, emptyRect);
|
|
}
|
|
|
|
// Reflow child
|
|
nsRect rect = aFrame->GetRect();
|
|
nsresult rv = ReflowChild(aFrame, aPresContext, aDesiredSize, kidReflowState,
|
|
rect.x, rect.y, NS_FRAME_NO_MOVE_VIEW | NS_FRAME_NO_SIZE_VIEW | NS_FRAME_NO_VISIBILITY, aStatus);
|
|
|
|
// Set the child's width and height to it's desired size
|
|
FinishReflowChild(aFrame, aPresContext, &kidReflowState, aDesiredSize,
|
|
rect.x, rect.y, NS_FRAME_NO_MOVE_VIEW | NS_FRAME_NO_SIZE_VIEW | NS_FRAME_NO_VISIBILITY);
|
|
return rv;
|
|
}
|
|
|
|
// Suggest a size for the child frame.
|
|
// Only frames which implement the nsIFormControlFrame interface and
|
|
// honor the SetSuggestedSize method will be placed and sized correctly.
|
|
|
|
void
|
|
nsComboboxControlFrame::SetChildFrameSize(nsIFrame* aFrame, nscoord aWidth, nscoord aHeight)
|
|
{
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsresult result = aFrame->QueryInterface(NS_GET_IID(nsIFormControlFrame), (void**)&fcFrame);
|
|
if (NS_SUCCEEDED(result) && (nsnull != fcFrame)) {
|
|
fcFrame->SetSuggestedSize(aWidth, aHeight);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::GetPrimaryComboFrame(nsIPresContext* aPresContext, nsIContent* aContent, nsIFrame** aFrame)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
// Get the primary frame from the presentation shell.
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
rv = aPresContext->GetShell(getter_AddRefs(presShell));
|
|
if (NS_SUCCEEDED(rv) && presShell) {
|
|
presShell->GetPrimaryFrameFor(aContent, aFrame);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::PositionDropdown(nsIPresContext* aPresContext,
|
|
nscoord aHeight,
|
|
nsRect aAbsoluteTwipsRect,
|
|
nsRect aAbsolutePixelRect)
|
|
{
|
|
// Position the dropdown list. It is positioned below the display frame if there is enough
|
|
// room on the screen to display the entire list. Otherwise it is placed above the display
|
|
// frame.
|
|
|
|
// Note: As first glance, it appears that you could simply get the absolute bounding box for the
|
|
// dropdown list by first getting it's view, then getting the view's nsIWidget, then asking the nsIWidget
|
|
// for it's AbsoluteBounds. The problem with this approach, is that the dropdown lists y location can
|
|
// change based on whether the dropdown is placed below or above the display frame.
|
|
// The approach, taken here is to get use the absolute position of the display frame and use it's location
|
|
// to determine if the dropdown will go offscreen.
|
|
|
|
// Use the height calculated for the area frame so it includes both
|
|
// the display and button heights.
|
|
nsresult rv = NS_OK;
|
|
nscoord dropdownYOffset = aHeight;
|
|
// XXX: Enable this code to debug popping up above the display frame, rather than below it
|
|
nsRect dropdownRect = mDropdownFrame->GetRect();
|
|
|
|
nscoord screenHeightInPixels = 0;
|
|
if (NS_SUCCEEDED(nsFormControlFrame::GetScreenHeight(aPresContext, screenHeightInPixels))) {
|
|
// Get the height of the dropdown list in pixels.
|
|
float t2p;
|
|
aPresContext->GetTwipsToPixels(&t2p);
|
|
nscoord absoluteDropDownHeight = NSTwipsToIntPixels(dropdownRect.height, t2p);
|
|
|
|
// Check to see if the drop-down list will go offscreen
|
|
if (NS_SUCCEEDED(rv) && ((aAbsolutePixelRect.y + aAbsolutePixelRect.height + absoluteDropDownHeight) > screenHeightInPixels)) {
|
|
// move the dropdown list up
|
|
dropdownYOffset = - (dropdownRect.height);
|
|
}
|
|
}
|
|
|
|
dropdownRect.x = 0;
|
|
dropdownRect.y = dropdownYOffset;
|
|
|
|
mDropdownFrame->SetRect(dropdownRect);
|
|
return rv;
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////
|
|
// Experimental Reflow
|
|
////////////////////////////////////////////////////////////////
|
|
#if defined(DO_NEW_REFLOW) || defined(DO_REFLOW_COUNTER)
|
|
//---------------------------------------------------------
|
|
// Returns the nsIDOMHTMLOptionElement for a given index
|
|
// in the select's collection
|
|
//---------------------------------------------------------
|
|
static nsIDOMHTMLOptionElement*
|
|
GetOption(nsIDOMHTMLCollection& aCollection, PRInt32 aIndex)
|
|
{
|
|
nsIDOMNode* node = nsnull;
|
|
if (NS_SUCCEEDED(aCollection.Item(aIndex, &node))) {
|
|
if (nsnull != node) {
|
|
nsIDOMHTMLOptionElement* option = nsnull;
|
|
node->QueryInterface(NS_GET_IID(nsIDOMHTMLOptionElement), (void**)&option);
|
|
NS_RELEASE(node);
|
|
return option;
|
|
}
|
|
}
|
|
return nsnull;
|
|
}
|
|
//---------------------------------------------------------
|
|
// for a given piece of content it returns nsIDOMHTMLSelectElement object
|
|
// or null
|
|
//---------------------------------------------------------
|
|
static nsIDOMHTMLSelectElement*
|
|
GetSelect(nsIContent * aContent)
|
|
{
|
|
nsIDOMHTMLSelectElement* selectElement = nsnull;
|
|
nsresult result = aContent->QueryInterface(NS_GET_IID(nsIDOMHTMLSelectElement),
|
|
(void**)&selectElement);
|
|
if (NS_SUCCEEDED(result) && selectElement) {
|
|
return selectElement;
|
|
} else {
|
|
return nsnull;
|
|
}
|
|
}
|
|
//---------------------------------------------------------
|
|
//---------------------------------------------------------
|
|
// This returns the collection for nsIDOMHTMLSelectElement or
|
|
// the nsIContent object is the select is null (AddRefs)
|
|
//---------------------------------------------------------
|
|
static nsIDOMHTMLCollection*
|
|
GetOptions(nsIContent * aContent, nsIDOMHTMLSelectElement* aSelect = nsnull)
|
|
{
|
|
nsIDOMHTMLCollection* options = nsnull;
|
|
if (!aSelect) {
|
|
nsCOMPtr<nsIDOMHTMLSelectElement> selectElement = getter_AddRefs(GetSelect(aContent));
|
|
if (selectElement) {
|
|
selectElement->GetOptions(&options); // AddRefs (1)
|
|
}
|
|
} else {
|
|
aSelect->GetOptions(&options); // AddRefs (1)
|
|
}
|
|
return options;
|
|
}
|
|
|
|
#ifdef DO_NEW_REFLOW
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ReflowItems(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredSize)
|
|
{
|
|
//printf("*****************\n");
|
|
const nsStyleFont* dspFont = mDisplayFrame->GetStyleFont();
|
|
nsCOMPtr<nsIDeviceContext> deviceContext;
|
|
aPresContext->GetDeviceContext(getter_AddRefs(deviceContext));
|
|
NS_ASSERTION(deviceContext, "Couldn't get the device context");
|
|
nsIFontMetrics * fontMet;
|
|
deviceContext->GetMetricsFor(dspFont->mFont, fontMet);
|
|
|
|
nscoord visibleHeight;
|
|
//nsCOMPtr<nsIFontMetrics> fontMet;
|
|
//nsresult res = nsFormControlHelper::GetFrameFontFM(aPresContext, this, getter_AddRefs(fontMet));
|
|
if (fontMet) {
|
|
fontMet->GetHeight(visibleHeight);
|
|
}
|
|
|
|
nsAutoString maxStr;
|
|
nscoord maxWidth = 0;
|
|
//nsIRenderingContext * rc = aReflowState.rendContext;
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
nsCOMPtr<nsIDOMHTMLCollection> options = getter_AddRefs(GetOptions(mContent));
|
|
if (options) {
|
|
PRUint32 numOptions;
|
|
options->GetLength(&numOptions);
|
|
//printf("--- Num of Items %d ---\n", numOptions);
|
|
for (PRUint32 i=0;i<numOptions;i++) {
|
|
nsCOMPtr<nsIDOMHTMLOptionElement> optionElement = getter_AddRefs(GetOption(*options, i));
|
|
if (optionElement) {
|
|
nsAutoString text;
|
|
rv = optionElement->GetLabel(text);
|
|
if (NS_CONTENT_ATTR_HAS_VALUE != rv || text.IsEmpty()) {
|
|
if (NS_OK == optionElement->GetText(text)) {
|
|
nscoord width;
|
|
aReflowState.rendContext->GetWidth(text, width);
|
|
if (width > maxWidth) {
|
|
maxStr = text;
|
|
maxWidth = width;
|
|
}
|
|
//maxWidth = PR_MAX(width, maxWidth);
|
|
//printf("[%d] - %d %s \n", i, width, NS_LossyConvertUCS2toASCII(text).get());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (maxWidth == 0) {
|
|
maxWidth = 11 * 15;
|
|
}
|
|
char * str = ToNewCString(maxStr);
|
|
printf("id: %d maxWidth %d [%s]\n", mReflowId, maxWidth, str);
|
|
delete [] str;
|
|
|
|
// get the borderPadding for the display area
|
|
nsMargin dspBorderPadding(0, 0, 0, 0);
|
|
mDisplayFrame->CalcBorderPadding(dspBorderPadding);
|
|
|
|
nscoord frmWidth = maxWidth+dspBorderPadding.left+dspBorderPadding.right+
|
|
aReflowState.mComputedBorderPadding.left + aReflowState.mComputedBorderPadding.right;
|
|
nscoord frmHeight = visibleHeight+dspBorderPadding.top+dspBorderPadding.bottom+
|
|
aReflowState.mComputedBorderPadding.top + aReflowState.mComputedBorderPadding.bottom;
|
|
|
|
#if 0
|
|
aDesiredSize.width = frmWidth;
|
|
aDesiredSize.height = frmHeight;
|
|
#else
|
|
printf("Size frm:%d,%d DS:%d,%d DIF:%d,%d(tp) %d,%d(px)\n",
|
|
frmWidth, frmHeight,
|
|
aDesiredSize.width, aDesiredSize.height,
|
|
frmWidth-aDesiredSize.width, frmHeight-aDesiredSize.height,
|
|
(frmWidth-aDesiredSize.width)/15, (frmHeight-aDesiredSize.height)/15);
|
|
#endif
|
|
NS_RELEASE(fontMet);
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
//------------------------------------------------------------------
|
|
// This Method reflow just the contents of the ComboBox
|
|
// The contents are a Block frame containing a Text Frame - This is the display area
|
|
// and then the GfxButton - The dropdown button
|
|
//--------------------------------------------------------------------------
|
|
void
|
|
nsComboboxControlFrame::ReflowCombobox(nsIPresContext * aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
nsReflowStatus& aStatus,
|
|
nsIFrame * aDisplayFrame,
|
|
nsIFrame * aDropDownBtn,
|
|
nscoord& aDisplayWidth,
|
|
nscoord aBtnWidth,
|
|
const nsMargin& aBorderPadding,
|
|
nscoord aFallBackHgt,
|
|
PRBool aCheckHeight)
|
|
{
|
|
// start out by using the cached height
|
|
// XXX later this will change when we better handle constrained height
|
|
nscoord dispHeight = mCacheSize.height - aBorderPadding.top - aBorderPadding.bottom;
|
|
nscoord dispWidth = aDisplayWidth;
|
|
|
|
REFLOW_NOISY_MSG3("+++1 AdjustCombo DW:%d DH:%d ", PX(dispWidth), PX(dispHeight));
|
|
REFLOW_NOISY_MSG3("BW:%d BH:%d ", PX(aBtnWidth), PX(dispHeight));
|
|
REFLOW_NOISY_MSG3("mCacheSize.height:%d - %d\n", PX(mCacheSize.height), PX((aBorderPadding.top + aBorderPadding.bottom)));
|
|
|
|
// get the border and padding for the DisplayArea (block frame & textframe)
|
|
nsMargin dspBorderPadding(0, 0, 0, 0);
|
|
mDisplayFrame->CalcBorderPadding(dspBorderPadding);
|
|
|
|
// adjust the height
|
|
if (mCacheSize.height == kSizeNotSet) {
|
|
if (aFallBackHgt == kSizeNotSet) {
|
|
NS_ASSERTION(aFallBackHgt != kSizeNotSet, "Fallback can't be kSizeNotSet when mCacheSize.height == kSizeNotSet");
|
|
} else {
|
|
dispHeight = aFallBackHgt;
|
|
REFLOW_NOISY_MSG2("+++3 Adding (dspBorderPadding.top + dspBorderPadding.bottom): %d\n", (dspBorderPadding.top + dspBorderPadding.bottom));
|
|
dispHeight += (dspBorderPadding.top + dspBorderPadding.bottom);
|
|
}
|
|
}
|
|
|
|
// Fix for Bug 58220 (part of it)
|
|
// make sure we size correctly if the CSS width is set to something really small like 0, 1, or 2 pixels
|
|
nscoord computedWidth = aReflowState.mComputedWidth + aBorderPadding.left + aBorderPadding.right;
|
|
if ((aReflowState.mComputedWidth != NS_UNCONSTRAINEDSIZE && computedWidth <= 0) || aReflowState.mComputedWidth == 0) {
|
|
nsRect buttonRect(0,0,0,0);
|
|
nsRect displayRect(0,0,0,0);
|
|
aBtnWidth = 0;
|
|
aDisplayFrame->SetRect(displayRect);
|
|
aDropDownBtn->SetRect(buttonRect);
|
|
SetChildFrameSize(aDropDownBtn, aBtnWidth, aDesiredSize.height);
|
|
aDesiredSize.width = 0;
|
|
aDesiredSize.height = dispHeight + aBorderPadding.top + aBorderPadding.bottom;
|
|
// XXX What about ascent and descent?
|
|
return;
|
|
}
|
|
|
|
REFLOW_NOISY_MSG3("+++2 AdjustCombo DW:%d DH:%d ", PX(dispWidth), PX(dispHeight));
|
|
REFLOW_NOISY_MSG3(" BW:%d BH:%d\n", PX(aBtnWidth), PX(dispHeight));
|
|
|
|
// This sets the button to be a specific size
|
|
// so no matter what it reflows at these values
|
|
SetChildFrameSize(aDropDownBtn, aBtnWidth, dispHeight);
|
|
|
|
#ifdef FIX_FOR_BUG_53259
|
|
// Make sure we obey min/max-width and min/max-height
|
|
if (dispWidth > aReflowState.mComputedMaxWidth) {
|
|
dispWidth = aReflowState.mComputedMaxWidth - aBorderPadding.left - aBorderPadding.right;
|
|
}
|
|
if (dispWidth < aReflowState.mComputedMinWidth) {
|
|
dispWidth = aReflowState.mComputedMinWidth - aBorderPadding.left - aBorderPadding.right;
|
|
}
|
|
|
|
if (dispHeight > aReflowState.mComputedMaxHeight) {
|
|
dispHeight = aReflowState.mComputedMaxHeight - aBorderPadding.top - aBorderPadding.bottom;
|
|
}
|
|
if (dispHeight < aReflowState.mComputedMinHeight) {
|
|
dispHeight = aReflowState.mComputedMinHeight - aBorderPadding.top - aBorderPadding.bottom;
|
|
}
|
|
#endif
|
|
|
|
// Make sure we get the reflow reason right. If an incremental
|
|
// reflow arrives that's targeted directly at the top-level combobox
|
|
// frame, then we can't pass it down to the children ``as is'':
|
|
// we're the last frame in the reflow command's chain. So, convert
|
|
// it to a resize reflow.
|
|
nsReflowReason reason = aReflowState.reason;
|
|
if (reason == eReflowReason_Incremental) {
|
|
if (aReflowState.path->mReflowCommand)
|
|
reason = eReflowReason_Resize;
|
|
}
|
|
|
|
// now that we know what the overall display width & height will be
|
|
// set up a new reflow state and reflow the area frame at that size
|
|
nsSize availSize(dispWidth + aBorderPadding.left + aBorderPadding.right,
|
|
dispHeight + aBorderPadding.top + aBorderPadding.bottom);
|
|
nsHTMLReflowState kidReflowState(aReflowState);
|
|
kidReflowState.availableWidth = availSize.width;
|
|
kidReflowState.availableHeight = availSize.height;
|
|
kidReflowState.mComputedWidth = dispWidth;
|
|
kidReflowState.mComputedHeight = dispHeight;
|
|
kidReflowState.reason = reason;
|
|
|
|
#ifdef IBMBIDI
|
|
const nsStyleVisibility* vis = GetStyleVisibility();
|
|
|
|
// M14 didn't calculate the RightEdge in the reflow
|
|
// Unless we set the width to some thing other than unrestricted
|
|
// the code changed this may not be the best place to put it
|
|
// in this->Reflow like this :
|
|
//
|
|
// Reflow display + button
|
|
// nsAreaFrame::Reflow(aPresContext, aDesiredSize, firstPassState, aStatus);
|
|
|
|
if (vis->mDirection == NS_STYLE_DIRECTION_RTL)
|
|
{
|
|
kidReflowState.mComputedWidth = 0;
|
|
}
|
|
#endif // IBMBIDI
|
|
|
|
// do reflow
|
|
nsAreaFrame::Reflow(aPresContext, aDesiredSize, kidReflowState, aStatus);
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// The DisplayFrame is a Block frame containing a TextFrame
|
|
// and it is completely anonymous, so we must manually reflow it
|
|
nsHTMLReflowMetrics txtKidSize(PR_TRUE);
|
|
nsSize txtAvailSize(dispWidth - aBtnWidth, dispHeight);
|
|
nsHTMLReflowState txtKidReflowState(aPresContext, aReflowState, aDisplayFrame, txtAvailSize, reason);
|
|
|
|
aDisplayFrame->WillReflow(aPresContext);
|
|
//aDisplayFrame->SetPosition(nsPoint(dspBorderPadding.left + aBorderPadding.left, dspBorderPadding.top + aBorderPadding.top));
|
|
aDisplayFrame->SetPosition(nsPoint(aBorderPadding.left, aBorderPadding.top));
|
|
nsAreaFrame::PositionFrameView(aPresContext, aDisplayFrame);
|
|
nsReflowStatus status;
|
|
nsresult rv = aDisplayFrame->Reflow(aPresContext, txtKidSize, txtKidReflowState, status);
|
|
if (NS_FAILED(rv)) return;
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// If we are Constrained then the AreaFrame Reflow is the correct size
|
|
// if we are unconstrained then
|
|
//if (aReflowState.mComputedWidth == NS_UNCONSTRAINEDSIZE) {
|
|
// aDesiredSize.width += txtKidSize.width;
|
|
//}
|
|
|
|
// Apparently, XUL lays out differently than HTML
|
|
// (the code above works for HTML and not XUL),
|
|
// so instead of using the above calculation
|
|
// I just set it to what it should be.
|
|
aDesiredSize.width = availSize.width;
|
|
//aDesiredSize.height = availSize.height;
|
|
|
|
// now we need to adjust layout, because the AreaFrame
|
|
// doesn't position things exactly where we want them
|
|
nscoord insideHeight = aDesiredSize.height - aBorderPadding.top - aBorderPadding.bottom;
|
|
|
|
// If the css width has been set to something very small
|
|
//i.e. smaller than the dropdown button, set the button's width to zero
|
|
if (aBtnWidth > dispWidth) {
|
|
aBtnWidth = 0;
|
|
}
|
|
// set the display rect to be left justifed and
|
|
// fills the entire area except the button
|
|
nscoord x = aBorderPadding.left;
|
|
nsRect displayRect(x, aBorderPadding.top, PR_MAX(dispWidth - aBtnWidth, 0), insideHeight);
|
|
aDisplayFrame->SetRect(displayRect);
|
|
x += displayRect.width;
|
|
|
|
// right justify the button
|
|
nsRect buttonRect(x, aBorderPadding.top, aBtnWidth, insideHeight);
|
|
#ifdef IBMBIDI
|
|
if (vis->mDirection == NS_STYLE_DIRECTION_RTL)
|
|
{
|
|
if (buttonRect.x > displayRect.x)
|
|
{
|
|
buttonRect.x = displayRect.x;
|
|
displayRect.x += buttonRect.width;
|
|
aDisplayFrame->SetRect(displayRect);
|
|
}
|
|
}
|
|
#endif // IBMBIDI
|
|
aDropDownBtn->SetRect(buttonRect);
|
|
|
|
// since we have changed the height of the button
|
|
// make sure it has these new values
|
|
SetChildFrameSize(aDropDownBtn, aBtnWidth, aDesiredSize.height);
|
|
|
|
// This is a last minute adjustment, if the CSS width was set and
|
|
// we calculated it to be a little big, then make sure we are no bigger the computed size
|
|
// this only comes into play when the css width has been set to something smaller than
|
|
// the dropdown arrow
|
|
if (aReflowState.mComputedWidth != NS_UNCONSTRAINEDSIZE && aDesiredSize.width > computedWidth) {
|
|
aDesiredSize.width = computedWidth;
|
|
}
|
|
|
|
REFLOW_NOISY_MSG3("**AdjustCombobox - Reflow: WW: %d HH: %d\n", aDesiredSize.width, aDesiredSize.height);
|
|
|
|
if (aDesiredSize.mComputeMEW) {
|
|
aDesiredSize.mMaxElementWidth = aDesiredSize.width;
|
|
}
|
|
|
|
aDesiredSize.ascent =
|
|
txtKidSize.ascent + aReflowState.mComputedBorderPadding.top;
|
|
aDesiredSize.descent = aDesiredSize.height - aDesiredSize.ascent;
|
|
|
|
// Now cache the available height as our height without border and padding
|
|
// This sets up the optimization for if a new available width comes in and we are equal or
|
|
// less than it we can bail
|
|
if (aDesiredSize.width != mCacheSize.width || aDesiredSize.height != mCacheSize.height) {
|
|
if (aReflowState.availableWidth != NS_UNCONSTRAINEDSIZE) {
|
|
mCachedAvailableSize.width = aDesiredSize.width - (aBorderPadding.left + aBorderPadding.right);
|
|
}
|
|
if (aReflowState.availableHeight != NS_UNCONSTRAINEDSIZE) {
|
|
mCachedAvailableSize.height = aDesiredSize.height - (aBorderPadding.top + aBorderPadding.bottom);
|
|
}
|
|
nsFormControlFrame::SetupCachedSizes(mCacheSize, mCachedAscent,
|
|
mCachedMaxElementWidth, aDesiredSize);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////
|
|
// This is an experimental reflow that is turned off in the build
|
|
#ifdef DO_NEW_REFLOW
|
|
ReflowItems(aPresContext, aReflowState, aDesiredSize);
|
|
#endif
|
|
///////////////////////////////////////////////////////////////////
|
|
}
|
|
|
|
//----------------------------------------------------------
|
|
//
|
|
//----------------------------------------------------------
|
|
#ifdef DO_REFLOW_DEBUG
|
|
static int myCounter = 0;
|
|
|
|
static void printSize(char * aDesc, nscoord aSize)
|
|
{
|
|
printf(" %s: ", aDesc);
|
|
if (aSize == NS_UNCONSTRAINEDSIZE) {
|
|
printf("UC");
|
|
} else {
|
|
printf("%d", PX(aSize));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
//-------------------------------------------------------------------
|
|
//-- Main Reflow for the Combobox
|
|
//-------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::Reflow(nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsComboboxControlFrame", aReflowState.reason);
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
|
|
REFLOW_COUNTER_REQUEST();
|
|
|
|
#ifdef DO_REFLOW_DEBUG
|
|
printf("-------------Starting Combobox Reflow ----------------------------\n");
|
|
printf("%p ** Id: %d nsCCF::Reflow %d R: ", this, mReflowId, myCounter++);
|
|
switch (aReflowState.reason) {
|
|
case eReflowReason_Initial:
|
|
printf("Ini");break;
|
|
case eReflowReason_Incremental:
|
|
printf("Inc");break;
|
|
case eReflowReason_Resize:
|
|
printf("Rsz");break;
|
|
case eReflowReason_StyleChange:
|
|
printf("Sty");break;
|
|
case eReflowReason_Dirty:
|
|
printf("Drt ");
|
|
break;
|
|
default:printf("<unknown>%d", aReflowState.reason);break;
|
|
}
|
|
|
|
printSize("AW", aReflowState.availableWidth);
|
|
printSize("AH", aReflowState.availableHeight);
|
|
printSize("CW", aReflowState.mComputedWidth);
|
|
printSize("CH", aReflowState.mComputedHeight);
|
|
|
|
nsCOMPtr<nsIDOMHTMLCollection> optionsTemp = getter_AddRefs(GetOptions(mContent));
|
|
PRUint32 numOptions;
|
|
optionsTemp->GetLength(&numOptions);
|
|
printSize("NO", (nscoord)numOptions);
|
|
|
|
printf(" *\n");
|
|
|
|
#endif
|
|
|
|
|
|
PRBool bailOnWidth;
|
|
PRBool bailOnHeight;
|
|
|
|
// Do initial check to see if we can bail out
|
|
// If it is an Initial or Incremental Reflow we never bail out here
|
|
// XXX right now we only bail if the width meets the criteria
|
|
//
|
|
// We bail:
|
|
// if mComputedWidth == NS_UNCONSTRAINEDSIZE and
|
|
// availableWidth == NS_UNCONSTRAINEDSIZE and
|
|
// we have cached an available size
|
|
//
|
|
// We bail:
|
|
// if mComputedWidth == NS_UNCONSTRAINEDSIZE and
|
|
// availableWidth != NS_UNCONSTRAINEDSIZE and
|
|
// availableWidth minus its border equals our cached available size
|
|
//
|
|
// We bail:
|
|
// if mComputedWidth != NS_UNCONSTRAINEDSIZE and
|
|
// cached availableSize.width == aReflowState.mComputedWidth and
|
|
// cached AvailableSize.width == aCacheSize.width
|
|
//
|
|
// NOTE: this returns whether we are doing an Incremental reflow
|
|
nsFormControlFrame::SkipResizeReflow(mCacheSize,
|
|
mCachedAscent,
|
|
mCachedMaxElementWidth,
|
|
mCachedAvailableSize,
|
|
aDesiredSize, aReflowState,
|
|
aStatus,
|
|
bailOnWidth, bailOnHeight);
|
|
if (bailOnWidth) {
|
|
#ifdef DO_REFLOW_DEBUG // check or size
|
|
nsMargin borderPadding(0, 0, 0, 0);
|
|
CalcBorderPadding(borderPadding);
|
|
UNCONSTRAINED_CHECK();
|
|
#endif
|
|
REFLOW_DEBUG_MSG3("^** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
NS_ASSERTION(aDesiredSize.width != kSizeNotSet, "aDesiredSize.width != kSizeNotSet");
|
|
NS_ASSERTION(aDesiredSize.height != kSizeNotSet, "aDesiredSize.height != kSizeNotSet");
|
|
aDesiredSize.mOverflowArea.x = 0;
|
|
aDesiredSize.mOverflowArea.y = 0;
|
|
aDesiredSize.mOverflowArea.width = aDesiredSize.width;
|
|
aDesiredSize.mOverflowArea.height = aDesiredSize.height;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (eReflowReason_Initial == aReflowState.reason) {
|
|
if (NS_FAILED(CreateDisplayFrame(aPresContext))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Go get all of the important frame
|
|
nsresult rv = NS_OK;
|
|
// Don't try to do any special sizing and positioning unless all of the frames
|
|
// have been created.
|
|
if ((nsnull == mDisplayFrame) ||
|
|
(nsnull == mButtonFrame) ||
|
|
(nsnull == mDropdownFrame))
|
|
{
|
|
// Since combobox frames are missing just do a normal area frame reflow
|
|
return nsAreaFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
}
|
|
|
|
// We should cache this instead getting it everytime
|
|
// the default size of the of scrollbar
|
|
// that will be the default width of the dropdown button
|
|
// the height will be the height of the text
|
|
nscoord scrollbarWidth = 0;
|
|
nsCOMPtr<nsIDeviceContext> dx;
|
|
aPresContext->GetDeviceContext(getter_AddRefs(dx));
|
|
if (dx) {
|
|
float w, h;
|
|
// Get the width in Device pixels times p2t
|
|
dx->GetScrollBarDimensions(w, h);
|
|
scrollbarWidth = NSToCoordRound(w);
|
|
}
|
|
|
|
// set up a new reflow state for use throughout
|
|
nsHTMLReflowState firstPassState(aReflowState);
|
|
nsHTMLReflowMetrics dropdownDesiredSize(nsnull);
|
|
|
|
// Check to see if this a fully unconstrained reflow
|
|
PRBool fullyUnconstrained = firstPassState.mComputedWidth == NS_UNCONSTRAINEDSIZE &&
|
|
firstPassState.mComputedHeight == NS_UNCONSTRAINEDSIZE;
|
|
|
|
PRBool forceReflow = PR_FALSE;
|
|
|
|
// Only reflow the display and button
|
|
// if they are the target of the incremental reflow, unless they change size.
|
|
if (eReflowReason_Incremental == aReflowState.reason) {
|
|
nsHTMLReflowCommand *command = firstPassState.path->mReflowCommand;
|
|
|
|
// Check to see if we are the target of the Incremental Reflow
|
|
if (command) {
|
|
// We need to check here to see if we can get away with just reflowing
|
|
// the combobox and not the dropdown
|
|
REFLOW_DEBUG_MSG("-----------------Target is Combobox------------\n");
|
|
|
|
// If the mComputedWidth matches our cached display width
|
|
// then we get away with bailing out
|
|
PRBool doFullReflow = firstPassState.mComputedWidth != NS_UNCONSTRAINEDSIZE &&
|
|
firstPassState.mComputedWidth != mItemDisplayWidth;
|
|
if (!doFullReflow) {
|
|
// OK, so we got lucky and the size didn't change
|
|
// so do a simple reflow and bail out
|
|
REFLOW_DEBUG_MSG("------------Reflowing AreaFrame and bailing----\n\n");
|
|
ReflowCombobox(aPresContext, firstPassState, aDesiredSize, aStatus,
|
|
mDisplayFrame, mButtonFrame, mItemDisplayWidth,
|
|
scrollbarWidth, aReflowState.mComputedBorderPadding);
|
|
REFLOW_COUNTER();
|
|
UNCONSTRAINED_CHECK();
|
|
REFLOW_DEBUG_MSG3("&** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
NS_ASSERTION(aDesiredSize.width != kSizeNotSet, "aDesiredSize.width != kSizeNotSet");
|
|
NS_ASSERTION(aDesiredSize.height != kSizeNotSet, "aDesiredSize.height != kSizeNotSet");
|
|
aDesiredSize.mOverflowArea.x = 0;
|
|
aDesiredSize.mOverflowArea.y = 0;
|
|
aDesiredSize.mOverflowArea.width = aDesiredSize.width;
|
|
aDesiredSize.mOverflowArea.height = aDesiredSize.height;
|
|
}
|
|
else {
|
|
// Nope, something changed that affected our size
|
|
// so we need to do a full reflow and resize ourself
|
|
REFLOW_DEBUG_MSG("------------Do Full Reflow----\n\n");
|
|
firstPassState.reason = eReflowReason_StyleChange;
|
|
firstPassState.path = nsnull;
|
|
forceReflow = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
// See if any of the children are targets, as well.
|
|
nsReflowPath::iterator iter = aReflowState.path->FirstChild();
|
|
nsReflowPath::iterator end = aReflowState.path->EndChildren();
|
|
for ( ; iter != end; ++iter) {
|
|
// Now, see if our target is the dropdown
|
|
// If so, maybe an items was added or some style changed etc.
|
|
// OR
|
|
// We get an Incremental reflow on the dropdown when it is being
|
|
// shown or hidden.
|
|
if (*iter == mDropdownFrame) {
|
|
REFLOW_DEBUG_MSG("---------Target is Dropdown (Clearing Unc DD Size)---\n");
|
|
// Nope, we were unlucky so now we do a full reflow
|
|
mCachedUncDropdownSize.width = kSizeNotSet;
|
|
mCachedUncDropdownSize.height = kSizeNotSet;
|
|
REFLOW_DEBUG_MSG("---- Doing Full Reflow\n");
|
|
// This is an incremental reflow targeted at the dropdown list
|
|
// and it didn't have anything to do with being show or hidden.
|
|
//
|
|
// The incremental reflow will not get to the dropdown list
|
|
// because it is in the "popup" list
|
|
// when this flow of control drops out of this if it will do a reflow
|
|
// on the AreaFrame which SHOULD make it get tothe drop down
|
|
// except that it is in the popup list, so we have it reflowed as
|
|
// a StyleChange, this is not as effecient as doing an Incremental
|
|
//
|
|
// At this point we want to by pass the reflow optimization in the dropdown
|
|
// because we aren't why it is getting an incremental reflow, but we do
|
|
// know that it needs to be resized or restyled
|
|
//mListControlFrame->SetOverrideReflowOptimization(PR_TRUE);
|
|
|
|
} else if (*iter == mDisplayFrame || *iter == mButtonFrame) {
|
|
REFLOW_DEBUG_MSG2("-----------------Target is %s------------\n", (*iter == mDisplayFrame?"DisplayItem Frame":"DropDown Btn Frame"));
|
|
// The incremental reflow is targeted at either the block or the button
|
|
REFLOW_DEBUG_MSG("---- Doing AreaFrame Reflow and then bailing out\n");
|
|
// Do simple reflow and bail out
|
|
ReflowCombobox(aPresContext, firstPassState, aDesiredSize, aStatus,
|
|
mDisplayFrame, mButtonFrame,
|
|
mItemDisplayWidth, scrollbarWidth,
|
|
aReflowState.mComputedBorderPadding,
|
|
kSizeNotSet, PR_TRUE);
|
|
REFLOW_DEBUG_MSG3("+** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
REFLOW_COUNTER();
|
|
UNCONSTRAINED_CHECK();
|
|
NS_ASSERTION(aDesiredSize.width != kSizeNotSet, "aDesiredSize.width != kSizeNotSet");
|
|
NS_ASSERTION(aDesiredSize.height != kSizeNotSet, "aDesiredSize.height != kSizeNotSet");
|
|
aDesiredSize.mOverflowArea.x = 0;
|
|
aDesiredSize.mOverflowArea.y = 0;
|
|
aDesiredSize.mOverflowArea.width = aDesiredSize.width;
|
|
aDesiredSize.mOverflowArea.height = aDesiredSize.height;
|
|
continue;
|
|
} else {
|
|
nsIFrame * plainLstFrame;
|
|
if (NS_SUCCEEDED(mListControlFrame->QueryInterface(NS_GET_IID(nsIFrame), (void**)&plainLstFrame))) {
|
|
nsIFrame * frame;
|
|
plainLstFrame->FirstChild(aPresContext, nsnull, &frame);
|
|
nsIScrollableFrame * scrollFrame;
|
|
if (NS_SUCCEEDED(frame->QueryInterface(NS_GET_IID(nsIScrollableFrame), (void**)&scrollFrame))) {
|
|
plainLstFrame->Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
aDesiredSize.width = mCacheSize.width;
|
|
aDesiredSize.height = mCacheSize.height;
|
|
aDesiredSize.ascent = mCachedAscent;
|
|
aDesiredSize.descent = aDesiredSize.height - aDesiredSize.ascent;
|
|
|
|
if (aDesiredSize.mComputeMEW) {
|
|
aDesiredSize.mMaxElementWidth = mCachedMaxElementWidth;
|
|
}
|
|
NS_ASSERTION(aDesiredSize.width != kSizeNotSet, "aDesiredSize.width != kSizeNotSet");
|
|
NS_ASSERTION(aDesiredSize.height != kSizeNotSet, "aDesiredSize.height != kSizeNotSet");
|
|
aDesiredSize.mOverflowArea.x = 0;
|
|
aDesiredSize.mOverflowArea.y = 0;
|
|
aDesiredSize.mOverflowArea.width = aDesiredSize.width;
|
|
aDesiredSize.mOverflowArea.height = aDesiredSize.height;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Here the target of the reflow was a child of the dropdown list
|
|
// so we must do a full reflow
|
|
REFLOW_DEBUG_MSG("-----------------Target is Dropdown's Child (Option Item)------------\n");
|
|
REFLOW_DEBUG_MSG("---- Doing Reflow as StyleChange\n");
|
|
}
|
|
firstPassState.reason = eReflowReason_StyleChange;
|
|
firstPassState.path = nsnull;
|
|
mListControlFrame->SetOverrideReflowOptimization(PR_TRUE);
|
|
forceReflow = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
#ifdef IBMBIDI
|
|
else if (eReflowReason_StyleChange == aReflowState.reason) {
|
|
forceReflow = PR_TRUE;
|
|
}
|
|
#endif // IBMBIDI
|
|
|
|
// Here is another special optimization
|
|
// Only reflow the dropdown if it has never been reflowed unconstrained
|
|
//
|
|
// Or someone up above here may want to force it to be reflowed
|
|
// by setting one or both of these to kSizeNotSet
|
|
if ((mCachedUncDropdownSize.width == kSizeNotSet &&
|
|
mCachedUncDropdownSize.height == kSizeNotSet) || forceReflow) {
|
|
REFLOW_DEBUG_MSG3("---Re %d,%d\n", PX(mCachedUncDropdownSize.width), PX(mCachedUncDropdownSize.height));
|
|
|
|
// Tell it we are doing the first pass, which means it will
|
|
// do the unconstained reflow and skip the second reflow this time around
|
|
nsListControlFrame * lcf = NS_STATIC_CAST(nsListControlFrame*, mDropdownFrame);
|
|
lcf->SetPassId(1);
|
|
// A width has not been specified for the select so size the display area
|
|
// to match the width of the longest item in the drop-down list. The dropdown
|
|
// list has already been reflowed and sized to shrink around its contents above.
|
|
ReflowComboChildFrame(mDropdownFrame, aPresContext, dropdownDesiredSize, firstPassState,
|
|
aStatus, NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
|
|
lcf->SetPassId(0); // reset it back
|
|
|
|
if (forceReflow) {
|
|
mCachedUncDropdownSize.width = dropdownDesiredSize.width;
|
|
mCachedUncDropdownSize.height = dropdownDesiredSize.height;
|
|
}
|
|
} else {
|
|
// Here we pretended we did an unconstrained reflow
|
|
// so we set the cached values and continue on
|
|
REFLOW_DEBUG_MSG3("--- Using Cached ListBox Size %d,%d\n", PX(mCachedUncDropdownSize.width), PX(mCachedUncDropdownSize.height));
|
|
dropdownDesiredSize.width = mCachedUncDropdownSize.width;
|
|
dropdownDesiredSize.height = mCachedUncDropdownSize.height;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
// XXX - I need to clean this nect part up a little it is very redundant
|
|
|
|
// Check here to if this is a mComputed unconstrained reflow
|
|
PRBool computedUnconstrained = firstPassState.mComputedWidth == NS_UNCONSTRAINEDSIZE &&
|
|
firstPassState.mComputedHeight == NS_UNCONSTRAINEDSIZE;
|
|
if (computedUnconstrained && !forceReflow) {
|
|
// Because Incremental reflows aren't actually getting to the dropdown
|
|
// we cache the size from when it did a fully unconstrained reflow
|
|
// we then check to see if the size changed at all,
|
|
// if not then bail out we don't need to worry
|
|
if (mCachedUncDropdownSize.width == kSizeNotSet && mCachedUncDropdownSize.height == kSizeNotSet) {
|
|
mCachedUncDropdownSize.width = dropdownDesiredSize.width;
|
|
mCachedUncDropdownSize.height = dropdownDesiredSize.height;
|
|
REFLOW_DEBUG_MSG3("---1 Caching mCachedUncDropdownSize %d,%d\n", PX(mCachedUncDropdownSize.width), PX(mCachedUncDropdownSize.height));
|
|
|
|
} else if (mCachedUncDropdownSize.width == dropdownDesiredSize.width &&
|
|
mCachedUncDropdownSize.height == dropdownDesiredSize.height) {
|
|
|
|
if (mCachedUncComboSize.width != kSizeNotSet && mCachedUncComboSize.height != kSizeNotSet) {
|
|
REFLOW_DEBUG_MSG3("--- Bailing because of mCachedUncDropdownSize %d,%d\n\n", PX(mCachedUncDropdownSize.width), PX(mCachedUncDropdownSize.height));
|
|
aDesiredSize.width = mCachedUncComboSize.width;
|
|
aDesiredSize.height = mCachedUncComboSize.height;
|
|
aDesiredSize.ascent = mCachedAscent;
|
|
aDesiredSize.descent = aDesiredSize.height - aDesiredSize.ascent;
|
|
|
|
if (aDesiredSize.mComputeMEW) {
|
|
aDesiredSize.mMaxElementWidth = mCachedMaxElementWidth;
|
|
}
|
|
UNCONSTRAINED_CHECK();
|
|
REFLOW_DEBUG_MSG3("#** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
NS_ASSERTION(aDesiredSize.width != kSizeNotSet, "aDesiredSize.width != kSizeNotSet");
|
|
NS_ASSERTION(aDesiredSize.height != kSizeNotSet, "aDesiredSize.height != kSizeNotSet");
|
|
aDesiredSize.mOverflowArea.x = 0;
|
|
aDesiredSize.mOverflowArea.y = 0;
|
|
aDesiredSize.mOverflowArea.width = aDesiredSize.width;
|
|
aDesiredSize.mOverflowArea.height = aDesiredSize.height;
|
|
return NS_OK;
|
|
}
|
|
} else {
|
|
mCachedUncDropdownSize.width = dropdownDesiredSize.width;
|
|
mCachedUncDropdownSize.height = dropdownDesiredSize.height;
|
|
}
|
|
}
|
|
// clean up stops here
|
|
/////////////////////////////////////////////////////////////////////////
|
|
|
|
// So this point we know we flowed the dropdown unconstrained
|
|
// now we get to figure out how big we need to be and
|
|
//
|
|
// We don't reflow the combobox here at the new size
|
|
// we cache its new size and reflow it on the dropdown
|
|
nsSize size;
|
|
PRInt32 length = 0;
|
|
mListControlFrame->GetNumberOfOptions(&length);
|
|
|
|
// dropdownRect will hold the content size (minus border padding)
|
|
// for the display area
|
|
nsRect dropdownRect = mDropdownFrame->GetRect();
|
|
if (eReflowReason_Resize == aReflowState.reason) {
|
|
dropdownRect.Deflate(aReflowState.mComputedBorderPadding);
|
|
}
|
|
|
|
// Get maximum size of the largest item in the dropdown
|
|
// The height of the display frame will be that height
|
|
// the width will be the same as
|
|
// the dropdown width (minus its borderPadding) OR
|
|
// a caculation off the mComputedWidth from reflow
|
|
mListControlFrame->GetMaximumSize(size);
|
|
|
|
// the variable "size" will now be
|
|
// the default size of the dropdown btn
|
|
if (scrollbarWidth > 0) {
|
|
size.width = scrollbarWidth;
|
|
}
|
|
|
|
// Get the border and padding for the dropdown
|
|
nsMargin dropBorderPadding(0, 0, 0, 0);
|
|
mDropdownFrame->CalcBorderPadding(dropBorderPadding);
|
|
|
|
// get the borderPadding for the display area
|
|
nsMargin dspBorderPadding(0, 0, 0, 0);
|
|
mDisplayFrame->CalcBorderPadding(dspBorderPadding);
|
|
|
|
// Substract dropdown's borderPadding from the width of the dropdown rect
|
|
// to get the size of the content area
|
|
//
|
|
// the height will come from the mDisplayFrame's height
|
|
// declare a size for the item display frame
|
|
|
|
//Set the desired size for the button and display frame
|
|
if (NS_UNCONSTRAINEDSIZE == firstPassState.mComputedWidth) {
|
|
REFLOW_DEBUG_MSG("Unconstrained.....\n");
|
|
REFLOW_DEBUG_MSG4("*B mItemDisplayWidth %d dropdownRect.width:%d dropdownRect.w+h %d\n", PX(mItemDisplayWidth), PX(dropdownRect.width), PX((dropBorderPadding.left + dropBorderPadding.right)));
|
|
|
|
// Start with the dropdown rect's width (at this stage, it's the
|
|
// natural width of the content in the list, i.e., the width of
|
|
// the widest content, i.e. the preferred width for the display
|
|
// frame) and add room for the button, which is assumed to match
|
|
// the width of the scrollbar (note that the scrollbarWidth is
|
|
// passed as aBtnWidth to ReflowCombobox). (When the dropdown was
|
|
// an nsScrollFrame the scrollbar width seems to have already been
|
|
// added to its unconstrained width.)
|
|
mItemDisplayWidth = dropdownRect.width + scrollbarWidth;
|
|
|
|
REFLOW_DEBUG_MSG2("* mItemDisplayWidth %d\n", PX(mItemDisplayWidth));
|
|
|
|
// mItemDisplayWidth must be the size of the "display" frame including it's
|
|
// border and padding, but NOT including the comboboxes border and padding
|
|
mItemDisplayWidth += dspBorderPadding.left + dspBorderPadding.right;
|
|
mItemDisplayWidth -= aReflowState.mComputedBorderPadding.left + aReflowState.mComputedBorderPadding.right;
|
|
|
|
REFLOW_DEBUG_MSG2("*A mItemDisplayWidth %d\n", PX(mItemDisplayWidth));
|
|
|
|
} else {
|
|
REFLOW_DEBUG_MSG("Constrained.....\n");
|
|
if (firstPassState.mComputedWidth > 0) {
|
|
// Compute the display item's width from reflow's mComputedWidth
|
|
// mComputedWidth has already excluded border and padding
|
|
// so subtract off the button's size
|
|
REFLOW_DEBUG_MSG3("B mItemDisplayWidth %d %d\n", PX(mItemDisplayWidth), PX(dspBorderPadding.right));
|
|
// Display Frame's width comes from the mComputedWidth and therefore implies that it
|
|
// includes the "display" frame's border and padding.
|
|
mItemDisplayWidth = firstPassState.mComputedWidth;
|
|
REFLOW_DEBUG_MSG2("A mItemDisplayWidth %d\n", PX(mItemDisplayWidth));
|
|
REFLOW_DEBUG_MSG4("firstPassState.mComputedWidth %d - size.width %d dspBorderPadding.right %d\n", PX(firstPassState.mComputedWidth), PX(size.width), PX(dspBorderPadding.right));
|
|
}
|
|
}
|
|
|
|
// Fix for Bug 44788 (remove this comment later)
|
|
if (firstPassState.mComputedHeight > 0 && NS_UNCONSTRAINEDSIZE != firstPassState.mComputedHeight) {
|
|
size.height = firstPassState.mComputedHeight;
|
|
}
|
|
|
|
|
|
// this reflows and makes and last minute adjustments
|
|
ReflowCombobox(aPresContext, firstPassState, aDesiredSize, aStatus,
|
|
mDisplayFrame, mButtonFrame, mItemDisplayWidth, scrollbarWidth,
|
|
aReflowState.mComputedBorderPadding, size.height);
|
|
|
|
// The dropdown was reflowed UNCONSTRAINED before, now we need to check to see
|
|
// if it needs to be resized.
|
|
//
|
|
// Optimization - The style (font, etc.) maybe different for the display item
|
|
// than for any particular item in the dropdown. So, if the new size of combobox
|
|
// is smaller than the dropdown, that is OK, The dropdown MUST always be either the same
|
|
// size as the combo or larger if necessary
|
|
if (aDesiredSize.width > dropdownDesiredSize.width) {
|
|
if (eReflowReason_Initial == firstPassState.reason) {
|
|
firstPassState.reason = eReflowReason_Resize;
|
|
}
|
|
REFLOW_DEBUG_MSG3("*** Reflowing ListBox to width: %d it was %d\n", PX(aDesiredSize.width), PX(dropdownDesiredSize.width));
|
|
|
|
// Tell it we are doing the second pass, which means we will skip
|
|
// doing the unconstained reflow, we already know that size
|
|
nsListControlFrame * lcf = NS_STATIC_CAST(nsListControlFrame*, mDropdownFrame);
|
|
lcf->SetPassId(2);
|
|
// Reflow the dropdown list to match the width of the display + button
|
|
ReflowComboChildFrame(mDropdownFrame, aPresContext, dropdownDesiredSize, firstPassState, aStatus,
|
|
aDesiredSize.width, NS_UNCONSTRAINEDSIZE);
|
|
lcf->SetPassId(0);
|
|
}
|
|
|
|
// Set the max element size to be the same as the desired element size.
|
|
if (aDesiredSize.mComputeMEW) {
|
|
aDesiredSize.mMaxElementWidth = aDesiredSize.width;
|
|
}
|
|
|
|
#if 0
|
|
COMPARE_QUIRK_SIZE("nsComboboxControlFrame", 127, 22)
|
|
#endif
|
|
|
|
// cache the availabe size to be our desired size minus the borders
|
|
// this is so if our cached available size is ever equal to or less
|
|
// than the real available size we can bail out
|
|
if (aReflowState.availableWidth != NS_UNCONSTRAINEDSIZE) {
|
|
mCachedAvailableSize.width = aDesiredSize.width -
|
|
(aReflowState.mComputedBorderPadding.left +
|
|
aReflowState.mComputedBorderPadding.right);
|
|
}
|
|
if (aReflowState.availableHeight != NS_UNCONSTRAINEDSIZE) {
|
|
mCachedAvailableSize.height = aDesiredSize.height -
|
|
(aReflowState.mComputedBorderPadding.top +
|
|
aReflowState.mComputedBorderPadding.bottom);
|
|
}
|
|
|
|
nsFormControlFrame::SetupCachedSizes(mCacheSize, mCachedAscent, mCachedMaxElementWidth, aDesiredSize);
|
|
|
|
REFLOW_DEBUG_MSG3("** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
REFLOW_COUNTER();
|
|
UNCONSTRAINED_CHECK();
|
|
|
|
// If this was a fully unconstrained reflow we cache
|
|
// the combobox's unconstrained size
|
|
if (fullyUnconstrained) {
|
|
mCachedUncComboSize.width = aDesiredSize.width;
|
|
mCachedUncComboSize.height = aDesiredSize.height;
|
|
}
|
|
|
|
NS_ASSERTION(aDesiredSize.width != kSizeNotSet, "aDesiredSize.width != kSizeNotSet");
|
|
NS_ASSERTION(aDesiredSize.height != kSizeNotSet, "aDesiredSize.height != kSizeNotSet");
|
|
aDesiredSize.mOverflowArea.x = 0;
|
|
aDesiredSize.mOverflowArea.y = 0;
|
|
aDesiredSize.mOverflowArea.width = aDesiredSize.width;
|
|
aDesiredSize.mOverflowArea.height = aDesiredSize.height;
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
return rv;
|
|
|
|
}
|
|
|
|
//--------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetName(nsAString* aResult)
|
|
{
|
|
return nsFormControlHelper::GetName(mContent, aResult);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetFrameForPoint(nsIPresContext* aPresContext,
|
|
const nsPoint& aPoint,
|
|
nsFramePaintLayer aWhichLayer,
|
|
nsIFrame** aFrame)
|
|
{
|
|
// The button is getting the hover events so...
|
|
// None of the children frames of the combobox get
|
|
// the events. (like the button frame), that way
|
|
// all event based style rules affect the combobox
|
|
// and not the any of the child frames. (The inability
|
|
// of the parent to be in the :hover state at the same
|
|
// time as its children is really a bug (#5693 / #33736)
|
|
// in the implementation of :hover.)
|
|
|
|
// It would be theoretically more elegant to check the
|
|
// children when not disabled, and then use event
|
|
// capturing. It would correctly handle situations (obscure!!)
|
|
// where the children were visible but the parent was not.
|
|
// Now the functionality of the OPTIONs depends on the SELECT
|
|
// being visible. Oh well...
|
|
|
|
if ( mRect.Contains(aPoint) &&
|
|
(aWhichLayer == NS_FRAME_PAINT_LAYER_FOREGROUND) ) {
|
|
if (GetStyleVisibility()->IsVisible()) {
|
|
*aFrame = this;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------
|
|
|
|
#ifdef NS_DEBUG
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetFrameName(nsAString& aResult) const
|
|
{
|
|
return MakeFrameName(NS_LITERAL_STRING("ComboboxControl"), aResult);
|
|
}
|
|
#endif
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIComboboxControlFrame
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ShowDropDown(PRBool aDoDropDown)
|
|
{
|
|
if (nsFormControlHelper::GetDisabled(mContent)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mDroppedDown && aDoDropDown) {
|
|
// XXX Temporary for Bug 19416
|
|
nsIView* lstView = mDropdownFrame->GetView();
|
|
if (lstView) {
|
|
lstView->IgnoreSetPosition(PR_FALSE);
|
|
}
|
|
if (mListControlFrame) {
|
|
mListControlFrame->SyncViewWithFrame(mPresContext);
|
|
}
|
|
// XXX Temporary for Bug 19416
|
|
if (lstView) {
|
|
lstView->IgnoreSetPosition(PR_TRUE);
|
|
}
|
|
ToggleList(mPresContext);
|
|
return NS_OK;
|
|
} else if (mDroppedDown && !aDoDropDown) {
|
|
ToggleList(mPresContext);
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetDropDown(nsIFrame* aDropDownFrame)
|
|
{
|
|
mDropdownFrame = aDropDownFrame;
|
|
|
|
if (NS_OK != CallQueryInterface(mDropdownFrame, &mListControlFrame)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetDropDown(nsIFrame** aDropDownFrame)
|
|
{
|
|
if (nsnull == aDropDownFrame) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
*aDropDownFrame = mDropdownFrame;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// Toggle dropdown list.
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ToggleList(nsIPresContext* aPresContext)
|
|
{
|
|
ShowList(aPresContext, (PR_FALSE == mDroppedDown));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::AbsolutelyPositionDropDown()
|
|
{
|
|
nsRect absoluteTwips;
|
|
nsRect absolutePixels;
|
|
|
|
if (NS_SUCCEEDED(nsFormControlFrame::GetAbsoluteFramePosition(mPresContext, this, absoluteTwips, absolutePixels))) {
|
|
PositionDropdown(mPresContext, GetRect().height, absoluteTwips, absolutePixels);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetAbsoluteRect(nsRect* aRect)
|
|
{
|
|
nsRect absoluteTwips;
|
|
return nsFormControlFrame::GetAbsoluteFramePosition(mPresContext, this, absoluteTwips, *aRect);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::RedisplaySelectedText()
|
|
{
|
|
PRInt32 selectedIndex;
|
|
mListControlFrame->GetSelectedIndex(&selectedIndex);
|
|
|
|
return RedisplayText(selectedIndex);
|
|
}
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::RedisplayText(PRInt32 aIndex)
|
|
{
|
|
// Get the text to display
|
|
nsAutoString textToDisplay;
|
|
if (aIndex != -1) {
|
|
mListControlFrame->GetOptionText(aIndex, textToDisplay);
|
|
}
|
|
mDisplayedIndex = aIndex;
|
|
|
|
#ifdef DO_REFLOW_DEBUG
|
|
char * str = ToNewCString(textToDisplay);
|
|
REFLOW_DEBUG_MSG2("RedisplayText %s\n", str);
|
|
delete [] str;
|
|
#endif
|
|
|
|
// Send reflow command because the new text maybe larger
|
|
nsresult rv = NS_OK;
|
|
if (mDisplayContent) {
|
|
nsAutoString value;
|
|
const nsTextFragment* fragment;
|
|
nsresult result = mDisplayContent->GetText(&fragment);
|
|
if (NS_SUCCEEDED(result)) {
|
|
fragment->AppendTo(value);
|
|
}
|
|
PRBool shouldSetValue = PR_FALSE;
|
|
if (NS_FAILED(result) || value.IsEmpty()) {
|
|
shouldSetValue = PR_TRUE;
|
|
} else {
|
|
shouldSetValue = value != textToDisplay;
|
|
REFLOW_DEBUG_MSG3("**** CBX::RedisplayText Old[%s] New[%s]\n",
|
|
NS_LossyConvertUCS2toASCII(value).get(),
|
|
NS_LossyConvertUCS2toASCII(textToDisplay).get());
|
|
}
|
|
if (shouldSetValue) {
|
|
rv = ActuallyDisplayText(textToDisplay, PR_TRUE);
|
|
//mTextFrame->AddStateBits(NS_FRAME_IS_DIRTY);
|
|
mDisplayFrame->AddStateBits(NS_FRAME_IS_DIRTY);
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
rv = mPresContext->GetShell(getter_AddRefs(shell));
|
|
ReflowDirtyChild(shell, (nsIFrame*) mDisplayFrame);
|
|
|
|
// nsCOMPtr<nsIPresShell> presShell;
|
|
// mPresContext->GetShell(getter_AddRefs(presShell));
|
|
// presShell->FlushPendingNotifications(PR_FALSE);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::ActuallyDisplayText(nsAString& aText, PRBool aNotify)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (aText.IsEmpty()) {
|
|
// Have to use a non-breaking space for line-height calculations
|
|
// to be right
|
|
static const PRUnichar spaceArr[] = { 0xA0, 0x00 };
|
|
nsDependentString space(spaceArr);
|
|
rv = mDisplayContent->SetText(space.get(), space.Length(), aNotify);
|
|
} else {
|
|
const nsAFlatString& flat = PromiseFlatString(aText);
|
|
rv = mDisplayContent->SetText(flat.get(), flat.Length(), aNotify);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetIndexOfDisplayArea(PRInt32* aDisplayedIndex)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aDisplayedIndex);
|
|
*aDisplayedIndex = mDisplayedIndex;
|
|
return NS_OK;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsISelectControlFrame
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::DoneAddingChildren(PRBool aIsDone)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
if (mDropdownFrame != nsnull) {
|
|
rv = CallQueryInterface(mDropdownFrame, &listFrame);
|
|
if (listFrame) {
|
|
rv = listFrame->DoneAddingChildren(aIsDone);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::AddOption(nsIPresContext* aPresContext, PRInt32 aIndex)
|
|
{
|
|
#ifdef DO_REFLOW_DEBUGXX
|
|
printf("*********AddOption: %d\n", aIndex);
|
|
#endif
|
|
nsListControlFrame * lcf = NS_STATIC_CAST(nsListControlFrame*, mDropdownFrame);
|
|
return lcf->AddOption(aPresContext, aIndex);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::RemoveOption(nsIPresContext* aPresContext, PRInt32 aIndex)
|
|
{
|
|
// If we removed the last option, we need to blank things out
|
|
PRInt32 len;
|
|
mListControlFrame->GetNumberOfOptions(&len);
|
|
if (len == 0) {
|
|
RedisplayText(-1);
|
|
}
|
|
|
|
nsListControlFrame* lcf = NS_STATIC_CAST(nsListControlFrame*, mDropdownFrame);
|
|
return lcf->RemoveOption(aPresContext, aIndex);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetOptionSelected(PRInt32 aIndex, PRBool* aValue)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsresult rv = CallQueryInterface(mDropdownFrame, &listFrame);
|
|
if (listFrame) {
|
|
rv = listFrame->GetOptionSelected(aIndex, aValue);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// Used by layout to determine if we have a fake option
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetDummyFrame(nsIFrame** aFrame)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
NS_ASSERTION(mDropdownFrame, "No dropdown frame!");
|
|
|
|
CallQueryInterface(mDropdownFrame, &listFrame);
|
|
NS_ASSERTION(listFrame, "No list frame!");
|
|
|
|
if (listFrame) {
|
|
listFrame->GetDummyFrame(aFrame);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetDummyFrame(nsIFrame* aFrame)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
NS_ASSERTION(mDropdownFrame, "No dropdown frame!");
|
|
|
|
CallQueryInterface(mDropdownFrame, &listFrame);
|
|
NS_ASSERTION(listFrame, "No list frame!");
|
|
|
|
if (listFrame) {
|
|
listFrame->SetDummyFrame(aFrame);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// End nsISelectControlFrame
|
|
//----------------------------------------------------------------------
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::HandleEvent(nsIPresContext* aPresContext,
|
|
nsGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aEventStatus);
|
|
// temp fix until Bug 124990 gets fixed
|
|
PRBool isPaginated = PR_FALSE;
|
|
aPresContext->IsPaginated(&isPaginated);
|
|
if (isPaginated && NS_IS_MOUSE_EVENT(aEvent)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
|
|
return NS_OK;
|
|
}
|
|
if (nsFormControlHelper::GetDisabled(mContent)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Toggle list open and close on F4, Alt-Down or Alt-Up
|
|
if (aEvent->message == NS_KEY_PRESS) {
|
|
nsKeyEvent* keyEvent = (nsKeyEvent*)aEvent;
|
|
nsInputEvent *inputEvent = (nsInputEvent*)aEvent;
|
|
if (!inputEvent->isShift && !inputEvent->isControl && !inputEvent->isMeta &&
|
|
!mDroppedDown && keyEvent->keyCode == NS_VK_RETURN) {
|
|
CheckFireOnChange();
|
|
}
|
|
}
|
|
|
|
// If we have style that affects how we are selected, feed event down to
|
|
// nsFrame::HandleEvent so that selection takes place when appropriate.
|
|
const nsStyleUserInterface* uiStyle = GetStyleUserInterface();
|
|
if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE || uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
|
|
return nsAreaFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::RequiresWidget(PRBool& aRequiresWidget)
|
|
{
|
|
aRequiresWidget = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsAString& aValue)
|
|
{
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsresult result = CallQueryInterface(mDropdownFrame, &fcFrame);
|
|
if ((NS_SUCCEEDED(result)) && (nsnull != fcFrame)) {
|
|
return fcFrame->SetProperty(aPresContext, aName, aValue);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetProperty(nsIAtom* aName, nsAString& aValue)
|
|
{
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsresult result = CallQueryInterface(mDropdownFrame, &fcFrame);
|
|
if ((NS_SUCCEEDED(result)) && (nsnull != fcFrame)) {
|
|
return fcFrame->GetProperty(aName, aValue);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::CreateDisplayFrame(nsIPresContext* aPresContext)
|
|
{
|
|
if (mGoodToGo) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
nsresult rv = NS_NewBlockFrame(shell, (nsIFrame**)&mDisplayFrame, NS_BLOCK_SPACE_MGR);
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!mDisplayFrame) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
// create the style context for the anonymous frame
|
|
nsRefPtr<nsStyleContext> styleContext;
|
|
styleContext = aPresContext->ResolvePseudoStyleContextFor(mContent,
|
|
nsCSSAnonBoxes::mozDisplayComboboxControlFrame,
|
|
mStyleContext);
|
|
if (!styleContext) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
// create a text frame and put it inside the block frame
|
|
rv = NS_NewTextFrame(shell, &mTextFrame);
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!mTextFrame) { return NS_ERROR_NULL_POINTER; }
|
|
nsRefPtr<nsStyleContext> textStyleContext;
|
|
textStyleContext = aPresContext->ResolveStyleContextForNonElement(styleContext);
|
|
if (!textStyleContext) { return NS_ERROR_NULL_POINTER; }
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(mDisplayContent));
|
|
mTextFrame->Init(aPresContext, content, mDisplayFrame, textStyleContext, nsnull);
|
|
mTextFrame->SetInitialChildList(aPresContext, nsnull, nsnull);
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
rv = aPresContext->GetShell(getter_AddRefs(presShell));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!presShell) { return NS_ERROR_NULL_POINTER; }
|
|
nsCOMPtr<nsIFrameManager> frameManager;
|
|
rv = presShell->GetFrameManager(getter_AddRefs(frameManager));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!frameManager) { return NS_ERROR_NULL_POINTER; }
|
|
frameManager->SetPrimaryFrameFor(content, mTextFrame);
|
|
|
|
rv = mDisplayFrame->Init(aPresContext, mContent, this, styleContext, nsnull);
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
|
|
mDisplayFrame->SetInitialChildList(aPresContext, nsnull, mTextFrame);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::CreateAnonymousContent(nsIPresContext* aPresContext,
|
|
nsISupportsArray& aChildList)
|
|
{
|
|
// The frames used to display the combo box and the button used to popup the dropdown list
|
|
// are created through anonymous content. The dropdown list is not created through anonymous
|
|
// content because it's frame is initialized specifically for the drop-down case and it is placed
|
|
// a special list referenced through NS_COMBO_FRAME_POPUP_LIST_INDEX to keep separate from the
|
|
// layout of the display and button.
|
|
//
|
|
// Note: The value attribute of the display content is set when an item is selected in the dropdown list.
|
|
// If the content specified below does not honor the value attribute than nothing will be displayed.
|
|
// In addition, if the frame created by content below for does not implement the nsIFormControlFrame
|
|
// interface and honor the SetSuggestedSize method the placement and size of the display area will not
|
|
// match what is normally desired for a combobox.
|
|
|
|
|
|
// For now the content that is created corresponds to two input buttons. It would be better to create the
|
|
// tag as something other than input, but then there isn't any way to create a button frame since it
|
|
// isn't possible to set the display type in CSS2 to create a button frame.
|
|
|
|
// create content used for display
|
|
//nsIAtom* tag = NS_NewAtom("mozcombodisplay");
|
|
|
|
// Add a child text content node for the label
|
|
nsresult result;
|
|
nsCOMPtr<nsIContent> labelContent(do_CreateInstance(kTextNodeCID,&result));
|
|
if (NS_SUCCEEDED(result) && labelContent) {
|
|
// set the value of the text node
|
|
mDisplayContent = do_QueryInterface(labelContent);
|
|
mDisplayContent->SetText(NS_LITERAL_STRING("X"), PR_TRUE);
|
|
|
|
nsCOMPtr<nsIDocument> doc = mContent->GetDocument();
|
|
// mContent->AppendChildTo(labelContent, PR_FALSE, PR_FALSE);
|
|
|
|
nsINodeInfoManager *nimgr = doc->GetNodeInfoManager();
|
|
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsINodeInfo> nodeInfo;
|
|
nimgr->GetNodeInfo(nsHTMLAtoms::input, nsnull, kNameSpaceID_None,
|
|
getter_AddRefs(nodeInfo));
|
|
|
|
aChildList.AppendElement(labelContent);
|
|
|
|
// create button which drops the list down
|
|
nsCOMPtr<nsIElementFactory> ef(do_GetService(kHTMLElementFactoryCID));
|
|
if (ef) {
|
|
nsCOMPtr<nsIContent> content;
|
|
result = ef->CreateInstanceByTag(nodeInfo,getter_AddRefs(content));
|
|
if (NS_SUCCEEDED(result)) {
|
|
nsCOMPtr<nsIHTMLContent> btnContent(do_QueryInterface(content));
|
|
if (btnContent) {
|
|
// make someone to listen to the button. If its pressed by someone like Accessibility
|
|
// then open or close the combo box.
|
|
nsCOMPtr<nsIDOMEventReceiver> eventReceiver(do_QueryInterface(content));
|
|
if (eventReceiver) {
|
|
mButtonListener = new nsComboButtonListener(this);
|
|
eventReceiver->AddEventListenerByIID(mButtonListener, NS_GET_IID(nsIDOMMouseListener));
|
|
}
|
|
|
|
btnContent->SetAttr(kNameSpaceID_None, nsHTMLAtoms::type, NS_LITERAL_STRING("button"), PR_FALSE);
|
|
aChildList.AppendElement(btnContent);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::CreateFrameFor(nsIPresContext* aPresContext,
|
|
nsIContent * aContent,
|
|
nsIFrame** aFrame)
|
|
{
|
|
NS_PRECONDITION(nsnull != aFrame, "null ptr");
|
|
NS_PRECONDITION(nsnull != aContent, "null ptr");
|
|
NS_PRECONDITION(nsnull != aPresContext, "null ptr");
|
|
|
|
*aFrame = nsnull;
|
|
NS_ASSERTION(mDisplayContent != nsnull, "mDisplayContent can't be null!");
|
|
|
|
if (!mGoodToGo) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(mDisplayContent));
|
|
if (aContent == content.get()) {
|
|
// Get PresShell
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
aPresContext->GetShell(getter_AddRefs(shell));
|
|
|
|
// Start by by creating a containing frame
|
|
nsresult rv = NS_NewBlockFrame(shell, (nsIFrame**)&mDisplayFrame, NS_BLOCK_SPACE_MGR);
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!mDisplayFrame) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
// create the style context for the anonymous block frame
|
|
nsRefPtr<nsStyleContext> styleContext;
|
|
styleContext = aPresContext->ResolvePseudoStyleContextFor(mContent,
|
|
nsCSSAnonBoxes::mozDisplayComboboxControlFrame,
|
|
mStyleContext);
|
|
if (!styleContext) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
// Create a text frame and put it inside the block frame
|
|
rv = NS_NewTextFrame(shell, &mTextFrame);
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!mTextFrame) { return NS_ERROR_NULL_POINTER; }
|
|
nsRefPtr<nsStyleContext> textStyleContext;
|
|
textStyleContext = aPresContext->ResolveStyleContextForNonElement(styleContext);
|
|
if (!textStyleContext) { return NS_ERROR_NULL_POINTER; }
|
|
|
|
// initialize the text frame
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(mDisplayContent));
|
|
mTextFrame->Init(aPresContext, content, mDisplayFrame, textStyleContext, nsnull);
|
|
mTextFrame->SetInitialChildList(aPresContext, nsnull, nsnull);
|
|
|
|
/*nsCOMPtr<nsIFrameManager> frameManager;
|
|
rv = shell->GetFrameManager(getter_AddRefs(frameManager));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
if (!frameManager) { return NS_ERROR_NULL_POINTER; }
|
|
frameManager->SetPrimaryFrameFor(content, mTextFrame);
|
|
*/
|
|
|
|
rv = mDisplayFrame->Init(aPresContext, mContent, this, styleContext, nsnull);
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
|
|
mDisplayFrame->SetInitialChildList(aPresContext, nsnull, mTextFrame);
|
|
*aFrame = mDisplayFrame;
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetSuggestedSize(nscoord aWidth, nscoord aHeight)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::Destroy(nsIPresContext* aPresContext)
|
|
{
|
|
nsFormControlFrame::RegUnRegAccessKey(mPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
|
|
|
|
if (mDroppedDown) {
|
|
// Get parent view
|
|
nsIFrame * listFrame;
|
|
if (NS_OK == mListControlFrame->QueryInterface(NS_GET_IID(nsIFrame), (void **)&listFrame)) {
|
|
nsIView* view = listFrame->GetView();
|
|
NS_ASSERTION(view, "nsComboboxControlFrame view is null");
|
|
if (view) {
|
|
nsIWidget* widget = view->GetWidget();
|
|
if (widget)
|
|
widget->CaptureRollupEvents((nsIRollupListener *)this, PR_FALSE, PR_TRUE);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Cleanup frames in popup child list
|
|
mPopupFrames.DestroyFrames(aPresContext);
|
|
|
|
if (!mGoodToGo) {
|
|
if (mDisplayFrame) {
|
|
mFrameConstructor->RemoveMappingsForFrameSubtree(aPresContext, mDisplayFrame, nsnull);
|
|
mDisplayFrame->Destroy(aPresContext);
|
|
mDisplayFrame=nsnull;
|
|
}
|
|
}
|
|
|
|
return nsAreaFrame::Destroy(aPresContext);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::FirstChild(nsIPresContext* aPresContext,
|
|
nsIAtom* aListName,
|
|
nsIFrame** aFirstChild) const
|
|
{
|
|
if (nsLayoutAtoms::popupList == aListName) {
|
|
*aFirstChild = mPopupFrames.FirstChild();
|
|
} else {
|
|
nsAreaFrame::FirstChild(aPresContext, aListName, aFirstChild);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetInitialChildList(nsIPresContext* aPresContext,
|
|
nsIAtom* aListName,
|
|
nsIFrame* aChildList)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
if (nsLayoutAtoms::popupList == aListName) {
|
|
mPopupFrames.SetFrames(aChildList);
|
|
} else {
|
|
rv = nsAreaFrame::SetInitialChildList(aPresContext, aListName, aChildList);
|
|
InitTextStr();
|
|
|
|
for (nsIFrame * child = aChildList; child;
|
|
child = child->GetNextSibling()) {
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
CallQueryInterface(child, &fcFrame);
|
|
if (fcFrame) {
|
|
if (fcFrame->GetFormControlType() == NS_FORM_INPUT_BUTTON) {
|
|
mButtonFrame = child;
|
|
}
|
|
} else {
|
|
mDisplayFrame = child;
|
|
}
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetAdditionalChildListName(PRInt32 aIndex,
|
|
nsIAtom** aListName) const
|
|
{
|
|
// Maintain a separate child list for the dropdown list (i.e. popup listbox)
|
|
// This is necessary because we don't want the listbox to be included in the layout
|
|
// of the combox's children because it would take up space, when it is suppose to
|
|
// be floating above the display.
|
|
NS_PRECONDITION(nsnull != aListName, "null OUT parameter pointer");
|
|
if (aIndex <= NS_BLOCK_FRAME_ABSOLUTE_LIST_INDEX) {
|
|
return nsAreaFrame::GetAdditionalChildListName(aIndex, aListName);
|
|
}
|
|
|
|
*aListName = nsnull;
|
|
if (NS_COMBO_FRAME_POPUP_LIST_INDEX == aIndex) {
|
|
*aListName = nsLayoutAtoms::popupList;
|
|
NS_ADDREF(*aListName);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
PRIntn
|
|
nsComboboxControlFrame::GetSkipSides() const
|
|
{
|
|
// Don't skip any sides during border rendering
|
|
return 0;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
//nsIRollupListener
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::Rollup()
|
|
{
|
|
if (mDroppedDown) {
|
|
mListControlFrame->AboutToRollup();
|
|
ShowDropDown(PR_FALSE);
|
|
mListControlFrame->CaptureMouseEvents(mPresContext, PR_FALSE);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::RollupFromList(nsIPresContext* aPresContext)
|
|
{
|
|
ShowList(aPresContext, PR_FALSE);
|
|
mListControlFrame->CaptureMouseEvents(aPresContext, PR_FALSE);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetNeedToFireOnChange(PRBool aNeedToFireOnChange)
|
|
{
|
|
mNeedToFireOnChange = aNeedToFireOnChange;
|
|
//
|
|
// If we're setting to false, then that means onChange was fired while
|
|
// we still may have focus. We must set recently selected index so that
|
|
// when we lose focus, we will be able to tell whether the index has changed
|
|
// since this time. See SetFocus().
|
|
//
|
|
if (!aNeedToFireOnChange) {
|
|
mListControlFrame->GetSelectedIndex(&mRecentSelectedIndex);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_METHOD
|
|
nsComboboxControlFrame::Paint(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer,
|
|
PRUint32 aFlags)
|
|
{
|
|
PRBool isVisible;
|
|
if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_TRUE, &isVisible)) && !isVisible) {
|
|
return NS_OK;
|
|
}
|
|
#ifdef NOISY
|
|
printf("%p paint layer %d at (%d, %d, %d, %d)\n", this, aWhichLayer,
|
|
aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
|
|
#endif
|
|
// We paint everything in the foreground so that the form control's
|
|
// parents cannot paint over it in other passes (bug 95826).
|
|
if (NS_FRAME_PAINT_LAYER_FOREGROUND == aWhichLayer) {
|
|
nsAreaFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
|
|
NS_FRAME_PAINT_LAYER_BACKGROUND);
|
|
nsAreaFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
|
|
NS_FRAME_PAINT_LAYER_FLOATS);
|
|
nsAreaFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
|
|
NS_FRAME_PAINT_LAYER_FOREGROUND);
|
|
|
|
// nsITheme should take care of drawing the focus border, but currently does so only on Mac.
|
|
// If all of the nsITheme implementations are fixed to draw the focus border correctly,
|
|
// this #ifdef should be replaced with a -moz-appearance / ThemeSupportsWidget() check.
|
|
|
|
#ifndef MOZ_WIDGET_COCOA
|
|
if (mDisplayFrame) {
|
|
aRenderingContext.PushState();
|
|
PRBool clipEmpty;
|
|
nsRect clipRect = mDisplayFrame->GetRect();
|
|
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect, clipEmpty);
|
|
PaintChild(aPresContext, aRenderingContext, aDirtyRect,
|
|
mDisplayFrame, NS_FRAME_PAINT_LAYER_BACKGROUND);
|
|
PaintChild(aPresContext, aRenderingContext, aDirtyRect,
|
|
mDisplayFrame, NS_FRAME_PAINT_LAYER_FOREGROUND);
|
|
|
|
/////////////////////
|
|
// draw focus
|
|
// XXX This is only temporary
|
|
// Only paint the focus if we're visible
|
|
if (GetStyleVisibility()->IsVisible()) {
|
|
nsCOMPtr<nsIEventStateManager> stateManager;
|
|
nsresult rv = mPresContext->GetEventStateManager(getter_AddRefs(stateManager));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
if (!nsFormControlHelper::GetDisabled(mContent) && mFocused == this) {
|
|
aRenderingContext.SetLineStyle(nsLineStyle_kDotted);
|
|
aRenderingContext.SetColor(0);
|
|
} else {
|
|
aRenderingContext.SetColor(GetStyleBackground()->mBackgroundColor);
|
|
aRenderingContext.SetLineStyle(nsLineStyle_kSolid);
|
|
}
|
|
//aRenderingContext.DrawRect(clipRect);
|
|
float p2t;
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
nscoord onePixel = NSIntPixelsToTwips(1, p2t);
|
|
clipRect.width -= onePixel;
|
|
clipRect.height -= onePixel;
|
|
aRenderingContext.DrawLine(clipRect.x, clipRect.y,
|
|
clipRect.x+clipRect.width, clipRect.y);
|
|
aRenderingContext.DrawLine(clipRect.x+clipRect.width, clipRect.y,
|
|
clipRect.x+clipRect.width, clipRect.y+clipRect.height);
|
|
aRenderingContext.DrawLine(clipRect.x+clipRect.width, clipRect.y+clipRect.height,
|
|
clipRect.x, clipRect.y+clipRect.height);
|
|
aRenderingContext.DrawLine(clipRect.x, clipRect.y+clipRect.height,
|
|
clipRect.x, clipRect.y);
|
|
aRenderingContext.DrawLine(clipRect.x, clipRect.y+clipRect.height,
|
|
clipRect.x, clipRect.y);
|
|
}
|
|
}
|
|
/////////////////////
|
|
aRenderingContext.PopState(clipEmpty);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// Call to the base class to draw selection borders when appropriate
|
|
return nsFrame::Paint(aPresContext,aRenderingContext,aDirtyRect,aWhichLayer);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
//nsIScrollableViewProvider
|
|
//----------------------------------------------------------------------
|
|
NS_METHOD
|
|
nsComboboxControlFrame::GetScrollableView(nsIPresContext* aPresContext,
|
|
nsIScrollableView** aView)
|
|
{
|
|
*aView = nsnull;
|
|
|
|
if (!mDropdownFrame)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsIScrollableFrame* scrollable = nsnull;
|
|
nsresult rv = CallQueryInterface(mDropdownFrame, &scrollable);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
return scrollable->GetScrollableView(aPresContext, aView);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// gets the content (an option) by index and then set it as
|
|
// being selected or not selected
|
|
//---------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::OnOptionSelected(nsIPresContext* aPresContext,
|
|
PRInt32 aIndex,
|
|
PRBool aSelected)
|
|
{
|
|
if (mDroppedDown) {
|
|
nsCOMPtr<nsISelectControlFrame> selectFrame
|
|
= do_QueryInterface(mListControlFrame);
|
|
if (selectFrame) {
|
|
selectFrame->OnOptionSelected(aPresContext, aIndex, aSelected);
|
|
}
|
|
} else {
|
|
if (aSelected) {
|
|
RedisplayText(aIndex);
|
|
} else {
|
|
RedisplaySelectedText();
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::OnOptionTextChanged(nsIDOMHTMLOptionElement* option)
|
|
{
|
|
RedisplaySelectedText();
|
|
if (mDroppedDown) {
|
|
nsCOMPtr<nsISelectControlFrame> selectFrame
|
|
= do_QueryInterface(mListControlFrame);
|
|
if (selectFrame) {
|
|
selectFrame->OnOptionTextChanged(option);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::OnContentReset()
|
|
{
|
|
if (mListControlFrame) {
|
|
nsCOMPtr<nsIFormControlFrame> formControl =
|
|
do_QueryInterface(mListControlFrame);
|
|
formControl->OnContentReset();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------
|
|
// nsIStatefulFrame
|
|
//--------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SaveState(nsIPresContext* aPresContext,
|
|
nsIPresState** aState)
|
|
{
|
|
nsCOMPtr<nsIStatefulFrame> stateful(do_QueryInterface(mListControlFrame));
|
|
NS_ASSERTION(stateful, "Couldn't cast list frame to stateful frame!!!");
|
|
if (stateful) {
|
|
return stateful->SaveState(aPresContext, aState);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::RestoreState(nsIPresContext* aPresContext,
|
|
nsIPresState* aState)
|
|
{
|
|
if (!mListControlFrame)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsIStatefulFrame* stateful;
|
|
nsresult rv = CallQueryInterface(mListControlFrame, &stateful);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "Must implement nsIStatefulFrame");
|
|
rv = stateful->RestoreState(aPresContext, aState);
|
|
return rv;
|
|
}
|