mirror of
https://github.com/mozilla/gecko-dev.git
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2491 lines
92 KiB
C++
2491 lines
92 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* 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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#include "nsCOMPtr.h"
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#include "nsComboboxControlFrame.h"
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#include "nsIFrameManager.h"
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#include "nsFormFrame.h"
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#include "nsFormControlFrame.h"
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#include "nsIHTMLContent.h"
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#include "nsHTMLIIDs.h"
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#include "nsHTMLAtoms.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 "nsIDOMNSHTMLOptionCollection.h"
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#include "nsIPresShell.h"
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#include "nsIPresState.h"
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#include "nsISupportsArray.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 "nsIStatefulFrame.h"
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#include "nsISupportsArray.h"
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#include "nsISelectControlFrame.h"
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#include "nsISupportsPrimitives.h"
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#include "nsIComponentManager.h"
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#include "nsIDOMMouseListener.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 "nsIScrollableFrame.h"
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#include "nsIXULDocument.h" // Temporary fix for Bug 36558
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#ifdef DO_NEW_REFLOW
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#include "nsIFontMetrics.h"
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#endif
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static NS_DEFINE_IID(kIFormControlFrameIID, NS_IFORMCONTROLFRAME_IID);
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static NS_DEFINE_IID(kIComboboxControlFrameIID, NS_ICOMBOBOXCONTROLFRAME_IID);
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static NS_DEFINE_IID(kIListControlFrameIID, NS_ILISTCONTROLFRAME_IID);
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static NS_DEFINE_IID(kIDOMMouseListenerIID, NS_IDOMMOUSELISTENER_IID);
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static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID);
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static NS_DEFINE_IID(kIAnonymousContentCreatorIID, NS_IANONYMOUS_CONTENT_CREATOR_IID);
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static NS_DEFINE_IID(kIDOMNodeIID, NS_IDOMNODE_IID);
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static NS_DEFINE_IID(kIPrivateDOMEventIID, NS_IPRIVATEDOMEVENT_IID);
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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 char * kMozDropdownActive = "-moz-dropdown-active";
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const PRInt32 kSizeNotSet = -1;
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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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nsFrameState state;
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it->GetFrameState( &state );
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state |= aStateFlags;
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it->SetFrameState( state );
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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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mFormFrame = nsnull;
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mListControlFrame = nsnull;
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mButtonContent = 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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mIgnoreFocus = PR_FALSE;
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mSelectedIndex = -1;
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mCacheSize.width = kSizeNotSet;
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mCacheSize.height = kSizeNotSet;
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mCachedMaxElementSize.width = kSizeNotSet;
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mCachedMaxElementSize.height = 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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//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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if (mFormFrame) {
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mFormFrame->RemoveFormControlFrame(*this);
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mFormFrame = nsnull;
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}
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NS_IF_RELEASE(mPresContext);
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NS_IF_RELEASE(mButtonContent);
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nsFormControlFrame::RegUnRegAccessKey(mPresContext, NS_STATIC_CAST(nsIFrame*, this), PR_FALSE);
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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(kIComboboxControlFrameIID)) {
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*aInstancePtr = (void*) ((nsIComboboxControlFrame*) this);
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return NS_OK;
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} else if (aIID.Equals(kIFormControlFrameIID)) {
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*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
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return NS_OK;
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} else if (aIID.Equals(kIAnonymousContentCreatorIID)) {
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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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}
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return nsAreaFrame::QueryInterface(aIID, aInstancePtr);
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}
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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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nsIStyleContext* 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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nsCOMPtr<nsIDocument> document;
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nsresult rv = aContent->GetDocument(*getter_AddRefs(document));
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if (NS_SUCCEEDED(rv) && document) {
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nsCOMPtr<nsIXULDocument> xulDoc(do_QueryInterface(document));
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mGoodToGo = xulDoc?PR_FALSE:PR_TRUE;
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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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//--------------------------------------------------------------
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PRBool
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nsComboboxControlFrame::IsSuccessful(nsIFormControlFrame* aSubmitter)
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{
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nsAutoString name;
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return (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
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}
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// If nothing is selected, and we have options, select item 0
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// This is a UI decision that goes against the HTML 4 spec.
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// See bugzilla bug 15841 for justification of this deviation.
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NS_IMETHODIMP
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nsComboboxControlFrame::MakeSureSomethingIsSelected(nsIPresContext* aPresContext)
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{
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nsIFormControlFrame* fcFrame = nsnull;
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nsIFrame* dropdownFrame = GetDropdownFrame();
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nsresult rv = dropdownFrame->QueryInterface(kIFormControlFrameIID, (void**)&fcFrame);
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if (NS_SUCCEEDED(rv) && fcFrame) {
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// If nothing selected, and there are options, default selection to item 0
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rv = mListControlFrame->GetSelectedIndex(&mSelectedIndex);
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if (NS_SUCCEEDED(rv) && (mSelectedIndex < 0)) {
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// Find out if there are any options in the list to select
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PRInt32 length = 0;
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mListControlFrame->GetNumberOfOptions(&length);
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if (length > 0) {
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// Set listbox selection to first item in the list box
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rv = fcFrame->SetProperty(aPresContext, nsHTMLAtoms::selectedindex, NS_ConvertASCIItoUCS2("0"));
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mSelectedIndex = 0;
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} else {
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UpdateSelection(PR_FALSE, PR_TRUE, mSelectedIndex); // Needed to reflow when removing last option
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}
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}
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// Don't NS_RELEASE fcFrame here as it isn't addRef'd in the QI (???)
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}
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return rv;
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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(nsIPresContext* aPresContext, PRBool aUpdate)
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{
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MakeSureSomethingIsSelected(aPresContext);
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// Update the selected text string
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mListControlFrame->GetSelectedItem(mTextStr);
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// Update the display by setting the value attribute
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mDisplayContent->SetText(mTextStr.GetUnicode(), mTextStr.Length(), aUpdate);
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}
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//--------------------------------------------------------------
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// Reset the combo box back to it original state.
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void
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nsComboboxControlFrame::Reset(nsIPresContext* aPresContext)
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{
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if (mPresState) {
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nsIStatefulFrame* sFrame = nsnull;
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nsresult res = mListControlFrame->QueryInterface(NS_GET_IID(nsIStatefulFrame),
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(void**)&sFrame);
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if (NS_SUCCEEDED(res) && sFrame) {
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res = sFrame->RestoreState(mPresContext, mPresState);
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NS_RELEASE(sFrame);
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}
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mPresState = do_QueryInterface(nsnull);
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}
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// Reset the dropdown list to its original state
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nsIFormControlFrame* fcFrame = nsnull;
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nsIFrame* dropdownFrame = GetDropdownFrame();
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nsresult result = dropdownFrame->QueryInterface(kIFormControlFrameIID, (void**)&fcFrame);
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if ((NS_OK == result) && (nsnull != fcFrame)) {
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fcFrame->Reset(aPresContext);
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}
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// Update the combobox using the text string returned from the dropdown list
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InitTextStr(aPresContext, PR_TRUE);
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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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Reset(aPresContext);
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}
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//--------------------------------------------------------------
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NS_IMETHODIMP
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|
nsComboboxControlFrame::GetType(PRInt32* aType) const
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{
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*aType = NS_FORM_SELECT;
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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::GetFormContent(nsIContent*& aContent) const
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{
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nsIContent* content;
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nsresult rv;
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rv = GetContent(&content);
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aContent = content;
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return rv;
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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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//--------------------------------------------------------------
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nscoord
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nsComboboxControlFrame::GetVerticalInsidePadding(nsIPresContext* aPresContext,
|
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float aPixToTwip,
|
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nscoord aInnerHeight) const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
//--------------------------------------------------------------
|
|
nscoord
|
|
nsComboboxControlFrame::GetHorizontalInsidePadding(nsIPresContext* aPresContext,
|
|
float aPixToTwip,
|
|
nscoord aInnerWidth,
|
|
nscoord aCharWidth) const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
nsComboboxControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
|
|
{
|
|
//XXX: TODO Implement focus for combobox.
|
|
}
|
|
|
|
void
|
|
nsComboboxControlFrame::ScrollIntoView(nsIPresContext* aPresContext)
|
|
{
|
|
if (aPresContext) {
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
|
|
presShell->ScrollFrameIntoView(this,
|
|
NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE,NS_PRESSHELL_SCROLL_IF_NOT_VISIBLE);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
nsComboboxControlFrame::ShowPopup(PRBool aShowPopup)
|
|
{
|
|
//XXX: This is temporary. It simulates a psuedo dropdown states by using a attribute selector
|
|
// This will not be need if the event state supports active states for use with the dropdown list
|
|
// Currently, the event state manager will reset the active state to the content which has focus
|
|
// which causes the active state to be removed from the event state manager immediately after it
|
|
// it the select is set to the active state.
|
|
|
|
nsCOMPtr<nsIAtom> activeAtom ( dont_QueryInterface(NS_NewAtom(kMozDropdownActive)));
|
|
if (PR_TRUE == aShowPopup) {
|
|
mContent->SetAttribute(kNameSpaceID_None, activeAtom, nsAutoString(), PR_TRUE);
|
|
} else {
|
|
mContent->UnsetAttribute(kNameSpaceID_None, activeAtom, PR_TRUE);
|
|
}
|
|
}
|
|
|
|
// Show the dropdown list
|
|
|
|
void
|
|
nsComboboxControlFrame::ShowList(nsIPresContext* aPresContext, PRBool aShowList)
|
|
{
|
|
nsCOMPtr<nsIWidget> widget;
|
|
|
|
// Get parent view
|
|
nsIFrame * listFrame;
|
|
if (NS_OK == mListControlFrame->QueryInterface(kIFrameIID, (void **)&listFrame)) {
|
|
nsIView * view = nsnull;
|
|
listFrame->GetView(aPresContext, &view);
|
|
NS_ASSERTION(view != nsnull, "nsComboboxControlFrame view is null");
|
|
if (view) {
|
|
view->GetWidget(*getter_AddRefs(widget));
|
|
}
|
|
}
|
|
|
|
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();
|
|
|
|
if (widget)
|
|
widget->CaptureRollupEvents((nsIRollupListener *)this, mDroppedDown, PR_TRUE);
|
|
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------
|
|
// 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;
|
|
|
|
// Reflow child
|
|
nsRect rect;
|
|
aFrame->GetRect(rect);
|
|
nsresult rv = ReflowChild(aFrame, aPresContext, aDesiredSize, kidReflowState,
|
|
rect.x, rect.y, 0, aStatus);
|
|
|
|
// Set the child's width and height to it's desired size
|
|
FinishReflowChild(aFrame, aPresContext, aDesiredSize, rect.x, rect.y, 0);
|
|
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(kIFormControlFrameIID, (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;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsComboboxControlFrame::GetButtonFrame(nsIPresContext* aPresContext)
|
|
{
|
|
if (mButtonFrame == nsnull) {
|
|
NS_ASSERTION(mButtonContent != nsnull, "nsComboboxControlFrame mButtonContent is null");
|
|
GetPrimaryComboFrame(aPresContext, mButtonContent, &mButtonFrame);
|
|
}
|
|
|
|
return mButtonFrame;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsComboboxControlFrame::GetDropdownFrame()
|
|
{
|
|
return mDropdownFrame;
|
|
}
|
|
|
|
|
|
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;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
|
|
nscoord dropdownYOffset = aHeight;
|
|
// XXX: Enable this code to debug popping up above the display frame, rather than below it
|
|
nsRect dropdownRect;
|
|
dropdownFrame->GetRect(dropdownRect);
|
|
|
|
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;
|
|
nsRect currentRect;
|
|
dropdownFrame->GetRect(currentRect);
|
|
|
|
dropdownFrame->SetRect(aPresContext, dropdownRect);
|
|
#ifdef DEBUG_rodsXXXXXX
|
|
printf("%d Position Dropdown at: %d %d %d %d\n", counter++, dropdownRect.x, dropdownRect.y, dropdownRect.width, dropdownRect.height);
|
|
#endif
|
|
|
|
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)
|
|
{
|
|
nsIDOMNSHTMLOptionCollection* optCol = nsnull;
|
|
nsIDOMHTMLCollection* options = nsnull;
|
|
if (!aSelect) {
|
|
nsCOMPtr<nsIDOMHTMLSelectElement> selectElement = getter_AddRefs(GetSelect(aContent));
|
|
if (selectElement) {
|
|
selectElement->GetOptions(&optCol); // AddRefs (1)
|
|
}
|
|
} else {
|
|
aSelect->GetOptions(&optCol); // AddRefs (1)
|
|
}
|
|
if (optCol) {
|
|
nsresult res = optCol->QueryInterface(NS_GET_IID(nsIDOMHTMLCollection), (void **)&options); // AddRefs (2)
|
|
NS_RELEASE(optCol); // Release (1)
|
|
}
|
|
return options;
|
|
}
|
|
|
|
#ifdef DO_NEW_REFLOW
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ReflowItems(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsHTMLReflowMetrics& aDesiredSize)
|
|
{
|
|
//printf("*****************\n");
|
|
const nsStyleFont* dspFont;
|
|
mDisplayFrame->GetStyleData(eStyleStruct_Font, (const nsStyleStruct *&)dspFont);
|
|
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 || 0 == text.Length()) {
|
|
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, text.ToNewCString());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (maxWidth == 0) {
|
|
maxWidth = 11 * 15;
|
|
}
|
|
char * str = maxStr.ToNewCString();
|
|
printf("id: %d maxWidth %d [%s]\n", mReflowId, maxWidth, str);
|
|
delete [] str;
|
|
|
|
// get the borderPadding for the display area
|
|
const nsStyleSpacing* dspSpacing;
|
|
mDisplayFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)dspSpacing);
|
|
nsMargin dspBorderPadding;
|
|
dspBorderPadding.SizeTo(0, 0, 0, 0);
|
|
dspSpacing->CalcBorderPaddingFor(mDisplayFrame, 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 1
|
|
aDesiredSize.width = frmWidth;
|
|
aDesiredSize.height = frmHeight;
|
|
#else
|
|
printf("Size %d,%d %d,%d %d,%d %d,%d\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)
|
|
const nsStyleSpacing* dspSpacing;
|
|
aDisplayFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)dspSpacing);
|
|
nsMargin dspBorderPadding;
|
|
dspBorderPadding.SizeTo(0, 0, 0, 0);
|
|
dspSpacing->CalcBorderPaddingFor(aDisplayFrame, 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);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////
|
|
// XXX - This is really bad, but at the moment I am NOT adding in the left padding
|
|
// we need to be able to find out what the left padding is on an option
|
|
// and subtract that out before we can add in our padding.
|
|
REFLOW_NOISY_MSG2("+++3 Adding: %d\n", dspBorderPadding.right);
|
|
dispWidth += dspBorderPadding.left + dspBorderPadding.right;
|
|
|
|
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);
|
|
|
|
// 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(aPresContext, aReflowState, this, availSize);
|
|
kidReflowState.mComputedWidth = dispWidth;
|
|
kidReflowState.mComputedHeight = dispHeight;
|
|
|
|
// 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
|
|
nsSize txtAvailSize(dispWidth - aBtnWidth, dispHeight);
|
|
nsHTMLReflowMetrics txtKidSize(&txtAvailSize);
|
|
nsHTMLReflowState txtKidReflowState(aPresContext, aReflowState, aDisplayFrame, txtAvailSize);
|
|
|
|
aDisplayFrame->WillReflow(aPresContext);
|
|
//aDisplayFrame->MoveTo(aPresContext, dspBorderPadding.left + aBorderPadding.left, dspBorderPadding.top + aBorderPadding.top);
|
|
aDisplayFrame->MoveTo(aPresContext, aBorderPadding.left, aBorderPadding.top);
|
|
nsIView* view;
|
|
aDisplayFrame->GetView(aPresContext, &view);
|
|
if (view) {
|
|
nsAreaFrame::PositionFrameView(aPresContext, aDisplayFrame, view);
|
|
}
|
|
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;
|
|
|
|
// the gets for the Display "block" frame and for the button
|
|
// make adjustments
|
|
nsRect buttonRect;
|
|
nsRect displayRect;
|
|
aDisplayFrame->GetRect(displayRect);
|
|
aDropDownBtn->GetRect(buttonRect);
|
|
// set the display rect to be left justifed and
|
|
// fills the entire area except the button
|
|
nscoord x = aBorderPadding.left;
|
|
displayRect.x = x;// + dspBorderPadding.left;
|
|
displayRect.y = aBorderPadding.top;// + dspBorderPadding.top;
|
|
displayRect.height = insideHeight;
|
|
displayRect.width = dispWidth - aBtnWidth;
|
|
aDisplayFrame->SetRect(aPresContext, displayRect);
|
|
x += displayRect.width;
|
|
|
|
// right justify the button
|
|
buttonRect.x = x;
|
|
buttonRect.y = aBorderPadding.top;
|
|
buttonRect.height = insideHeight;
|
|
buttonRect.width = aBtnWidth;
|
|
aDropDownBtn->SetRect(aPresContext, buttonRect);
|
|
|
|
// since we have changed the height of the button
|
|
// make sure it has these new values
|
|
// XXX this may not be needed anymore
|
|
SetChildFrameSize(aDropDownBtn, aBtnWidth, aDesiredSize.height);
|
|
|
|
|
|
REFLOW_NOISY_MSG3("**AdjustCombobox - Reflow: WW: %d HH: %d\n", aDesiredSize.width, aDesiredSize.height);
|
|
|
|
if (nsnull != aDesiredSize.maxElementSize) {
|
|
aDesiredSize.maxElementSize->width = aDesiredSize.width;
|
|
aDesiredSize.maxElementSize->height = aDesiredSize.height;
|
|
}
|
|
// 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, mCachedMaxElementSize, aDesiredSize);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////
|
|
// This is an experimental reflow that is turned off in the build
|
|
#ifdef DO_NEW_REFLOW_X
|
|
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);
|
|
|
|
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,
|
|
mCachedMaxElementSize,
|
|
mCachedAvailableSize,
|
|
aDesiredSize, aReflowState,
|
|
aStatus,
|
|
bailOnWidth, bailOnHeight);
|
|
if (bailOnWidth) {
|
|
#ifdef DO_REFLOW_DEBUG // check or size
|
|
const nsStyleSpacing* spacing;
|
|
GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing);
|
|
nsMargin borderPadding;
|
|
borderPadding.SizeTo(0, 0, 0, 0);
|
|
spacing->CalcBorderPaddingFor(this, borderPadding);
|
|
UNCONSTRAINED_CHECK();
|
|
#endif
|
|
REFLOW_DEBUG_MSG3("^** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
return NS_OK;
|
|
}
|
|
|
|
// add ourself to the form control
|
|
if (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
|
|
nsFormFrame::AddFormControlFrame(aPresContext, *NS_STATIC_CAST(nsIFrame*,this));
|
|
if (NS_FAILED(CreateDisplayFrame(aPresContext))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Go get all of the important frame
|
|
nsresult rv = NS_OK;
|
|
nsIFrame* buttonFrame = GetButtonFrame(aPresContext);
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
|
|
// Don't try to do any special sizing and positioning unless all of the frames
|
|
// have been created.
|
|
if ((nsnull == mDisplayFrame) ||
|
|
(nsnull == buttonFrame) ||
|
|
(nsnull == dropdownFrame))
|
|
{
|
|
// Since combobox frames are missing just do a normal area frame reflow
|
|
return nsAreaFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
}
|
|
|
|
// size of each part of the combo box
|
|
nsRect displayRect;
|
|
nsRect buttonRect;
|
|
nsRect dropdownRect;
|
|
|
|
// get our border and padding,
|
|
// XXX - should be the same mComputedBorderPadding?
|
|
// maybe we should use that?
|
|
const nsStyleSpacing* spacing;
|
|
GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)spacing);
|
|
nsMargin borderPadding;
|
|
borderPadding.SizeTo(0, 0, 0, 0);
|
|
spacing->CalcBorderPaddingFor(this, borderPadding);
|
|
|
|
// Get the current sizes of the combo box child frames
|
|
mDisplayFrame->GetRect(displayRect);
|
|
buttonFrame->GetRect(buttonRect);
|
|
dropdownFrame->GetRect(dropdownRect);
|
|
|
|
// 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 = -1;
|
|
nsCOMPtr<nsIDeviceContext> dx;
|
|
aPresContext->GetDeviceContext(getter_AddRefs(dx));
|
|
if (dx) {
|
|
// Get the width in Device pixels (in this case screen)
|
|
SystemAttrStruct info;
|
|
dx->GetSystemAttribute(eSystemAttr_Size_ScrollbarWidth, &info);
|
|
// Get the pixels to twips conversion for the current device (screen or printer)
|
|
float p2t;
|
|
aPresContext->GetPixelsToTwips(&p2t);
|
|
// Get the scale factor for mapping from one device (screen)
|
|
// to another device (screen or printer)
|
|
// Typically when it is a screen the scale 1.0
|
|
// when it is a printer is could be anything
|
|
float scale;
|
|
dx->GetCanonicalPixelScale(scale);
|
|
scrollbarWidth = NSIntPixelsToTwips(info.mSize, p2t*scale);
|
|
}
|
|
|
|
// 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.availableWidth == NS_UNCONSTRAINEDSIZE &&
|
|
firstPassState.mComputedWidth == NS_UNCONSTRAINEDSIZE &&
|
|
firstPassState.availableHeight == 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) {
|
|
nsIFrame* targetFrame;
|
|
firstPassState.reflowCommand->GetTarget(targetFrame);
|
|
// Check to see if we are the target of the Incremental Reflow
|
|
if (targetFrame == this) {
|
|
// 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, buttonFrame, mItemDisplayWidth,
|
|
scrollbarWidth, borderPadding);
|
|
REFLOW_COUNTER();
|
|
UNCONSTRAINED_CHECK();
|
|
REFLOW_DEBUG_MSG3("&** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
return rv;
|
|
}
|
|
// 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.reflowCommand = nsnull;
|
|
forceReflow = PR_TRUE;
|
|
|
|
} else {
|
|
// 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 (targetFrame == dropdownFrame) {
|
|
REFLOW_DEBUG_MSG("---------Target is Dropdown (Clearing Unc DD Size)---\n");
|
|
PRBool bail = PR_FALSE;
|
|
|
|
// Let's start by checking to see if this is a reflow ro showing or hiding.
|
|
nsIView * view;
|
|
dropdownFrame->GetView(aPresContext, &view);
|
|
nsViewVisibility vis = nsViewVisibility_kHide;
|
|
NS_ASSERTION(view != nsnull, "The dropdown frame doesn't have a view!");
|
|
if (view != nsnull) {
|
|
view->GetVisibility(vis);
|
|
}
|
|
// If the view is hidden, but the combobox thinks the it is dropped down
|
|
// then it look like we are suppose to be showing the dropdown
|
|
// XXX - It is really to bad we have to reflow at all
|
|
// just to get it to show up or be hidden
|
|
nsIFrame * incrementalChild;
|
|
aReflowState.reflowCommand->GetNext(incrementalChild);
|
|
if (nsViewVisibility_kHide == vis && mDroppedDown) {
|
|
bail = PR_TRUE;
|
|
// Do a constrained reflow at a predetermined size
|
|
// to have the dropdown shown
|
|
nscoord width = mCacheSize.width > kSizeNotSet?PR_MAX(mCacheSize.width, dropdownRect.width):NS_UNCONSTRAINEDSIZE;
|
|
ReflowComboChildFrame(dropdownFrame, aPresContext, dropdownDesiredSize, aReflowState, aStatus, width, NS_UNCONSTRAINEDSIZE);
|
|
} else if (nsViewVisibility_kShow == vis && !mDroppedDown) {
|
|
bail = PR_TRUE;
|
|
nscoord width = mCacheSize.width > kSizeNotSet?PR_MAX(mCacheSize.width, dropdownRect.width):NS_UNCONSTRAINEDSIZE;
|
|
ReflowComboChildFrame(dropdownFrame, aPresContext, dropdownDesiredSize, aReflowState, aStatus, width, NS_UNCONSTRAINEDSIZE);
|
|
// cache the values here also,
|
|
// since we just did an unconstrained reflow
|
|
mCachedUncDropdownSize.width = dropdownDesiredSize.width;
|
|
mCachedUncDropdownSize.height = dropdownDesiredSize.height;
|
|
REFLOW_DEBUG_MSG3("---2 Caching mCachedUncDropdownSize %d,%d\n", PX(mCachedUncDropdownSize.width), PX(mCachedUncDropdownSize.height));
|
|
}
|
|
|
|
// Ok, we get to bail because it was either being shown or hidden
|
|
if (bail) {
|
|
if (fullyUnconstrained) {
|
|
aDesiredSize.width = mCachedUncComboSize.width;
|
|
aDesiredSize.height = mCachedUncComboSize.height;
|
|
} else {
|
|
aDesiredSize.width = mCacheSize.width;
|
|
aDesiredSize.height = mCacheSize.height;
|
|
}
|
|
|
|
if (aDesiredSize.maxElementSize != nsnull) {
|
|
aDesiredSize.maxElementSize->width = mCachedMaxElementSize.width;
|
|
aDesiredSize.maxElementSize->height = mCachedMaxElementSize.height;
|
|
}
|
|
aDesiredSize.ascent = aDesiredSize.height;
|
|
aDesiredSize.descent = 0;
|
|
REFLOW_DEBUG_MSG3("|** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
REFLOW_DEBUG_MSG("---- Setting Cached values and then bailing out\n\n");
|
|
UNCONSTRAINED_CHECK();
|
|
return NS_OK;
|
|
}
|
|
// 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 (targetFrame == mDisplayFrame || targetFrame == buttonFrame) {
|
|
if (targetFrame == mDisplayFrame) {
|
|
nsresult rv = ReflowComboChildFrame(mDisplayFrame, aPresContext, aDesiredSize,
|
|
aReflowState, aStatus,
|
|
aReflowState.availableWidth,
|
|
aReflowState.availableHeight);
|
|
return rv;
|
|
}
|
|
|
|
// The incremental reflow is targeted at either the block or the button
|
|
REFLOW_DEBUG_MSG2("-----------------Target is %s------------\n", (targetFrame == mDisplayFrame?"DisplayItem Frame":"DropDown Btn Frame"));
|
|
REFLOW_DEBUG_MSG("---- Doing AreaFrame Reflow and then bailing out\n");
|
|
// Do simple reflow and bail out
|
|
ReflowCombobox(aPresContext, firstPassState, aDesiredSize, aStatus,
|
|
mDisplayFrame, buttonFrame,
|
|
mItemDisplayWidth, scrollbarWidth, borderPadding, kSizeNotSet, PR_TRUE);
|
|
REFLOW_DEBUG_MSG3("+** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(aDesiredSize.height));
|
|
REFLOW_COUNTER();
|
|
UNCONSTRAINED_CHECK();
|
|
return rv;
|
|
} else {
|
|
nsIFrame * plainLstFrame;
|
|
if (NS_SUCCEEDED(mListControlFrame->QueryInterface(kIFrameIID, (void**)&plainLstFrame))) {
|
|
nsIFrame * frame;
|
|
plainLstFrame->FirstChild(aPresContext, nsnull, &frame);
|
|
nsIScrollableFrame * scrollFrame;
|
|
if (NS_SUCCEEDED(frame->QueryInterface(NS_GET_IID(nsIScrollableFrame), (void**)&scrollFrame))) {
|
|
nsIFrame * incrementalChild;
|
|
aReflowState.reflowCommand->GetNext(incrementalChild);
|
|
nsRect rect;
|
|
plainLstFrame->GetRect(rect);
|
|
nsresult rvv = plainLstFrame->Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
aDesiredSize.width = mCacheSize.width;
|
|
aDesiredSize.height = mCacheSize.height;
|
|
|
|
if (aDesiredSize.maxElementSize != nsnull) {
|
|
aDesiredSize.maxElementSize->width = mCachedMaxElementSize.width;
|
|
aDesiredSize.maxElementSize->height = mCachedMaxElementSize.height;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
// 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.reflowCommand = nsnull;
|
|
mListControlFrame->SetOverrideReflowOptimization(PR_TRUE);
|
|
forceReflow = PR_TRUE;
|
|
}
|
|
}
|
|
|
|
// This ifdef is for the new approach to reflow
|
|
// where we don't reflow the dropdown
|
|
// we just figure out or width from the list of items
|
|
//
|
|
// This next section is the Current implementation
|
|
// the else contains the new reflow code
|
|
#ifndef DO_NEW_REFLOW
|
|
|
|
// 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));
|
|
// 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(dropdownFrame, aPresContext, dropdownDesiredSize, firstPassState,
|
|
aStatus, NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
|
|
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;
|
|
|
|
if (aDesiredSize.maxElementSize != nsnull) {
|
|
aDesiredSize.maxElementSize->width = mCachedMaxElementSize.width;
|
|
aDesiredSize.maxElementSize->height = mCachedMaxElementSize.height;
|
|
}
|
|
aDesiredSize.ascent = aDesiredSize.height;
|
|
aDesiredSize.descent = 0;
|
|
UNCONSTRAINED_CHECK();
|
|
REFLOW_DEBUG_MSG3("#** Done nsCCF DW: %d DH: %d\n\n", PX(aDesiredSize.width), PX(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
|
|
dropdownFrame->GetRect(dropdownRect);
|
|
|
|
// 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
|
|
const nsStyleSpacing* dropSpacing;
|
|
dropdownFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)dropSpacing);
|
|
nsMargin dropBorderPadding;
|
|
dropBorderPadding.SizeTo(0, 0, 0, 0);
|
|
dropSpacing->CalcBorderPaddingFor(dropdownFrame, dropBorderPadding);
|
|
|
|
// get the borderPadding for the display area
|
|
const nsStyleSpacing* dspSpacing;
|
|
mDisplayFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)dspSpacing);
|
|
nsMargin dspBorderPadding;
|
|
dspBorderPadding.SizeTo(0, 0, 0, 0);
|
|
dspSpacing->CalcBorderPaddingFor(mDisplayFrame, 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
|
|
mItemDisplayWidth = dropdownRect.width;
|
|
|
|
REFLOW_DEBUG_MSG2("* mItemDisplayWidth %d\n", PX(mItemDisplayWidth));
|
|
|
|
// subtract off the display's BorderPadding
|
|
mItemDisplayWidth -= dspBorderPadding.left + dspBorderPadding.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));
|
|
mItemDisplayWidth = firstPassState.mComputedWidth - dspBorderPadding.left - dspBorderPadding.right;
|
|
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));
|
|
}
|
|
}
|
|
// this reflows and makes and last minute adjustments
|
|
ReflowCombobox(aPresContext, firstPassState, aDesiredSize, aStatus,
|
|
mDisplayFrame, buttonFrame, mItemDisplayWidth, scrollbarWidth,
|
|
borderPadding, 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 0
|
|
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));
|
|
// Reflow the dropdown list to match the width of the display + button
|
|
ReflowComboChildFrame(dropdownFrame, aPresContext, dropdownDesiredSize, firstPassState, aStatus,
|
|
aDesiredSize.width, NS_UNCONSTRAINEDSIZE);
|
|
}
|
|
#endif
|
|
|
|
#else // DO_NEW_REFLOW
|
|
|
|
if (mCacheSize.width == kSizeNotSet) {
|
|
ReflowItems(aPresContext, aReflowState, aDesiredSize);
|
|
} else {
|
|
aDesiredSize.width = mCacheSize.width;
|
|
aDesiredSize.height = mCacheSize.height;
|
|
}
|
|
|
|
// get the borderPadding for the display area
|
|
const nsStyleSpacing* dspSpacing;
|
|
mDisplayFrame->GetStyleData(eStyleStruct_Spacing, (const nsStyleStruct *&)dspSpacing);
|
|
nsMargin dspBorderPadding;
|
|
dspBorderPadding.SizeTo(0, 0, 0, 0);
|
|
|
|
dspSpacing->CalcBorderPaddingFor(mDisplayFrame, dspBorderPadding);
|
|
|
|
if (NS_UNCONSTRAINEDSIZE == firstPassState.mComputedWidth) {
|
|
mItemDisplayWidth = aDesiredSize.width - (dspBorderPadding.left + dspBorderPadding.right);
|
|
mItemDisplayWidth -= borderPadding.left + borderPadding.right;
|
|
} else {
|
|
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
|
|
mItemDisplayWidth = firstPassState.mComputedWidth - dspBorderPadding.left - dspBorderPadding.right;
|
|
}
|
|
}
|
|
|
|
// this reflows and makes and last minute adjustments
|
|
ReflowCombobox(aPresContext, firstPassState, aDesiredSize, aStatus,
|
|
mDisplayFrame, buttonFrame, mItemDisplayWidth, scrollbarWidth,
|
|
borderPadding,
|
|
aDesiredSize.height- borderPadding.top - borderPadding.bottom -
|
|
dspBorderPadding.top - dspBorderPadding.bottom);
|
|
#endif // DO_NEW_REFLOW
|
|
|
|
// Set the max element size to be the same as the desired element size.
|
|
if (nsnull != aDesiredSize.maxElementSize) {
|
|
aDesiredSize.maxElementSize->width = aDesiredSize.width;
|
|
aDesiredSize.maxElementSize->height = aDesiredSize.height;
|
|
}
|
|
|
|
#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 avilable size is ever equal to or less
|
|
// than the real avilable size we can bail out
|
|
if (aReflowState.availableWidth != NS_UNCONSTRAINEDSIZE) {
|
|
mCachedAvailableSize.width = aDesiredSize.width - (borderPadding.left + borderPadding.right);
|
|
}
|
|
if (aReflowState.availableHeight != NS_UNCONSTRAINEDSIZE) {
|
|
mCachedAvailableSize.height = aDesiredSize.height - (borderPadding.top + borderPadding.bottom);
|
|
}
|
|
|
|
nsFormControlFrame::SetupCachedSizes(mCacheSize, mCachedMaxElementSize, 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;
|
|
}
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
//--------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetName(nsString* aResult)
|
|
{
|
|
nsresult result = NS_FORM_NOTOK;
|
|
if (mContent) {
|
|
nsIHTMLContent* formControl = nsnull;
|
|
result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
|
|
if ((NS_OK == result) && formControl) {
|
|
nsHTMLValue value;
|
|
result = formControl->GetHTMLAttribute(nsHTMLAtoms::name, value);
|
|
if (NS_CONTENT_ATTR_HAS_VALUE == result) {
|
|
if (eHTMLUnit_String == value.GetUnit()) {
|
|
value.GetStringValue(*aResult);
|
|
}
|
|
}
|
|
NS_RELEASE(formControl);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
PRInt32
|
|
nsComboboxControlFrame::GetMaxNumValues()
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/*XXX-REMOVE
|
|
PRBool
|
|
nsComboboxControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
|
|
nsString* aValues, nsString* aNames)
|
|
{
|
|
nsAutoString name;
|
|
nsresult result = GetName(&name);
|
|
if ((aMaxNumValues <= 0) || (NS_CONTENT_ATTR_HAS_VALUE != result)) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
// use our name and the text widgets value
|
|
aNames[0] = name;
|
|
aValues[0] = mTextStr;
|
|
aNumValues = 1;
|
|
nsresult status = PR_TRUE;
|
|
return status;
|
|
}
|
|
*/
|
|
|
|
PRBool
|
|
nsComboboxControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
|
|
nsString* aValues, nsString* aNames)
|
|
{
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult result = dropdownFrame->QueryInterface(kIFormControlFrameIID, (void**)&fcFrame);
|
|
if ((NS_SUCCEEDED(result)) && (nsnull != fcFrame)) {
|
|
return fcFrame->GetNamesValues(aMaxNumValues, aNumValues, aValues, aNames);
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetFrameForPoint(nsIPresContext* aPresContext,
|
|
const nsPoint& aPoint,
|
|
nsFramePaintLayer aWhichLayer,
|
|
nsIFrame** aFrame)
|
|
{
|
|
PRBool inThisFrame = mRect.Contains(aPoint);
|
|
if (! ((mState & NS_FRAME_OUTSIDE_CHILDREN) || inThisFrame) ) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if ( nsFormFrame::GetDisabled(this) && inThisFrame ) {
|
|
const nsStyleDisplay* disp = (const nsStyleDisplay*)
|
|
mStyleContext->GetStyleData(eStyleStruct_Display);
|
|
if (disp->IsVisible()) {
|
|
*aFrame = this;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
#if 0
|
|
if (aWhichLayer == NS_FRAME_PAINT_LAYER_FOREGROUND) {
|
|
nsresult rv = GetFrameForPointUsing(aPresContext, aPoint, nsnull, NS_FRAME_PAINT_LAYER_FOREGROUND, PR_FALSE, aFrame);
|
|
if (NS_SUCCEEDED(rv)) return rv;
|
|
return GetFrameForPointUsing(aPresContext, aPoint, nsnull, NS_FRAME_PAINT_LAYER_BACKGROUND, PR_TRUE, aFrame);
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
#else
|
|
*aFrame = this;
|
|
return NS_OK;
|
|
#endif
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------
|
|
|
|
#ifdef NS_DEBUG
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetFrameName(nsString& aResult) const
|
|
{
|
|
return MakeFrameName("ComboboxControl", aResult);
|
|
}
|
|
#endif
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIComboboxControlFrame
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ShowDropDown(PRBool aDoDropDown)
|
|
{
|
|
if (nsFormFrame::GetDisabled(this)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mDroppedDown && aDoDropDown) {
|
|
// XXX Temporary for Bug 19416
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsIView * lstView;
|
|
dropdownFrame->GetView(mPresContext, &lstView);
|
|
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 != mDropdownFrame->QueryInterface(kIListControlFrameIID, (void**)&mListControlFrame)) {
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// The ListControlFrame was just created and added to the comboxbox
|
|
// so provide it with a PresState so it can restore itself
|
|
// when it does its first "Reset"
|
|
if (mPresState) {
|
|
mListControlFrame->SetPresState(mPresState);
|
|
mPresState = do_QueryInterface(nsnull);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetDropDown(nsIFrame** aDropDownFrame)
|
|
{
|
|
if (nsnull == aDropDownFrame) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
*aDropDownFrame = mDropdownFrame;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ListWasSelected(nsIPresContext* aPresContext)
|
|
{
|
|
if (aPresContext == nsnull) {
|
|
aPresContext = mPresContext;
|
|
}
|
|
ShowList(aPresContext, PR_FALSE);
|
|
mListControlFrame->CaptureMouseEvents(aPresContext, PR_FALSE);
|
|
|
|
PRInt32 indx;
|
|
mListControlFrame->GetSelectedIndex(&indx);
|
|
|
|
UpdateSelection(PR_TRUE, PR_FALSE, indx);
|
|
|
|
return NS_OK;
|
|
}
|
|
// Toggle dropdown list.
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::ToggleList(nsIPresContext* aPresContext)
|
|
{
|
|
|
|
ShowList(aPresContext, (PR_FALSE == mDroppedDown));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::UpdateSelection(PRBool aDoDispatchEvent, PRBool aForceUpdate, PRInt32 aNewIndex)
|
|
{
|
|
if (mListControlFrame) {
|
|
// Check to see if the selection changed
|
|
if (mSelectedIndex != aNewIndex || aForceUpdate) {
|
|
//???if (mSelectedIndex != aNewIndex || (aForceUpdate && aNewIndex != kSizeNotSet)) {
|
|
mListControlFrame->GetSelectedItem(mTextStr); // Update text box
|
|
#ifdef DO_REFLOW_DEBUG
|
|
char * str = mTextStr.ToNewCString();
|
|
REFLOW_DEBUG_MSG2("UpdateSelection %s\n", str);
|
|
delete [] str;
|
|
#endif
|
|
mListControlFrame->UpdateSelection(aDoDispatchEvent, aForceUpdate, mContent);
|
|
}
|
|
mSelectedIndex = aNewIndex;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::AbsolutelyPositionDropDown()
|
|
{
|
|
nsRect absoluteTwips;
|
|
nsRect absolutePixels;
|
|
|
|
nsRect rect;
|
|
this->GetRect(rect);
|
|
if (NS_SUCCEEDED(nsFormControlFrame::GetAbsoluteFramePosition(mPresContext, this, absoluteTwips, absolutePixels))) {
|
|
PositionDropdown(mPresContext, rect.height, absoluteTwips, absolutePixels);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetAbsoluteRect(nsRect* aRect)
|
|
{
|
|
nsRect absoluteTwips;
|
|
nsRect rect;
|
|
this->GetRect(rect);
|
|
nsresult rv = nsFormControlFrame::GetAbsoluteFramePosition(mPresContext, this, absoluteTwips, *aRect);
|
|
|
|
return rv;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SelectionChanged()
|
|
{
|
|
// 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.Length() == 0) {
|
|
shouldSetValue = PR_TRUE;
|
|
} else {
|
|
shouldSetValue = value != mTextStr;
|
|
REFLOW_DEBUG_MSG3("**** SelectionChanged Old[%s] New[%s]\n", value.ToNewCString(), mTextStr.ToNewCString());
|
|
}
|
|
if (shouldSetValue) {
|
|
if (mTextStr.Length() == 0) {
|
|
nsAutoString space; space.AssignWithConversion(" ");
|
|
rv = mDisplayContent->SetText(space.GetUnicode(), space.Length(), PR_TRUE);
|
|
} else {
|
|
rv = mDisplayContent->SetText(mTextStr.GetUnicode(), mTextStr.Length(), PR_TRUE);
|
|
}
|
|
nsFrameState state;
|
|
//mTextFrame->GetFrameState(&state);
|
|
//state |= NS_FRAME_IS_DIRTY;
|
|
//mTextFrame->SetFrameState(state);
|
|
mDisplayFrame->GetFrameState(&state);
|
|
state |= NS_FRAME_IS_DIRTY;
|
|
mDisplayFrame->SetFrameState(state);
|
|
nsCOMPtr<nsIPresShell> shell;
|
|
rv = mPresContext->GetShell(getter_AddRefs(shell));
|
|
ReflowDirtyChild(shell, (nsIFrame*) mDisplayFrame);
|
|
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
mPresContext->GetShell(getter_AddRefs(presShell));
|
|
presShell->FlushPendingNotifications();
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsISelectControlFrame
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::DoneAddingContent(PRBool aIsDone)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
if (dropdownFrame != nsnull) {
|
|
rv = dropdownFrame->QueryInterface(NS_GET_IID(nsISelectControlFrame),
|
|
(void**)&listFrame);
|
|
if (NS_SUCCEEDED(rv) && listFrame) {
|
|
rv = listFrame->DoneAddingContent(aIsDone);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::AddOption(nsIPresContext* aPresContext, PRInt32 aIndex)
|
|
{
|
|
#ifdef DO_REFLOW_DEBUG
|
|
printf("**********\n*********AddOption: %d\n", aIndex);
|
|
#endif
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult rv = dropdownFrame->QueryInterface(NS_GET_IID(nsISelectControlFrame),
|
|
(void**)&listFrame);
|
|
if (NS_SUCCEEDED(rv) && listFrame) {
|
|
rv = listFrame->AddOption(aPresContext, aIndex);
|
|
//PRInt32 index;
|
|
//mListControlFrame->GetSelectedIndex(&index);
|
|
//UpdateSelection(PR_FALSE, PR_TRUE, index);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
// If we added the first option, we might need to select it.
|
|
// We should call MakeSureSomethingIsSelected here, but since it
|
|
// it changes selection, which currently causes a reframe, and thus
|
|
// deletes the frame out from under the caller, causing a crash. (Bug 17995)
|
|
// XXX MakeSureSomethingIsSelected(aPresContext);
|
|
return rv;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::RemoveOption(nsIPresContext* aPresContext, PRInt32 aIndex)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult rv = dropdownFrame->QueryInterface(NS_GET_IID(nsISelectControlFrame),
|
|
(void**)&listFrame);
|
|
if (NS_SUCCEEDED(rv) && listFrame) {
|
|
rv = listFrame->RemoveOption(aPresContext, aIndex);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
// If we removed the selected option, nothing is selected any more.
|
|
// Restore selection to option 0 if there are options left.
|
|
MakeSureSomethingIsSelected(aPresContext);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetOptionSelected(PRInt32 aIndex, PRBool aValue)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult rv = dropdownFrame->QueryInterface(NS_GET_IID(nsISelectControlFrame),
|
|
(void**)&listFrame);
|
|
if (NS_SUCCEEDED(rv) && listFrame) {
|
|
rv = listFrame->SetOptionSelected(aIndex, aValue);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetOptionSelected(PRInt32 aIndex, PRBool* aValue)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult rv = dropdownFrame->QueryInterface(NS_GET_IID(nsISelectControlFrame),
|
|
(void**)&listFrame);
|
|
if (NS_SUCCEEDED(rv) && listFrame) {
|
|
rv = listFrame->GetOptionSelected(aIndex, aValue);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::OptionDisabled(nsIContent * aContent)
|
|
{
|
|
nsISelectControlFrame* listFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult rv = dropdownFrame->QueryInterface(NS_GET_IID(nsISelectControlFrame),
|
|
(void**)&listFrame);
|
|
if (NS_SUCCEEDED(rv) && listFrame) {
|
|
rv = listFrame->OptionDisabled(aContent);
|
|
NS_RELEASE(listFrame);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::HandleEvent(nsIPresContext* aPresContext,
|
|
nsGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aEventStatus);
|
|
if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
|
|
return NS_OK;
|
|
}
|
|
if (nsFormFrame::GetDisabled(this)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsComboboxControlFrame::RequiresWidget(PRBool& aRequiresWidget)
|
|
{
|
|
aRequiresWidget = PR_FALSE;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsString& aValue)
|
|
{
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult result = dropdownFrame->QueryInterface(kIFormControlFrameIID, (void**)&fcFrame);
|
|
if ((NS_SUCCEEDED(result)) && (nsnull != fcFrame)) {
|
|
return fcFrame->SetProperty(aPresContext, aName, aValue);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetProperty(nsIAtom* aName, nsString& aValue)
|
|
{
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsIFrame* dropdownFrame = GetDropdownFrame();
|
|
nsresult result = dropdownFrame->QueryInterface(kIFormControlFrameIID, (void**)&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
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(mContent,
|
|
nsHTMLAtoms::mozDisplayComboboxControlFrame,
|
|
mStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
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; }
|
|
nsCOMPtr<nsIStyleContext> textStyleContext;
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(mContent,
|
|
nsHTMLAtoms::mozDisplayComboboxControlFrame,
|
|
styleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(textStyleContext));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
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, content, 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
|
|
nsCOMPtr<nsIContent> labelContent;
|
|
nsresult result = NS_NewTextNode(getter_AddRefs(labelContent));
|
|
nsAutoString value; value.AssignWithConversion("X");
|
|
if (NS_SUCCEEDED(result) && labelContent) {
|
|
// set the value of the text node
|
|
mDisplayContent = do_QueryInterface(labelContent);
|
|
mDisplayContent->SetText(value.GetUnicode(), value.Length(), PR_TRUE);
|
|
|
|
/*nsIDocument* doc;
|
|
mContent->GetDocument(doc);
|
|
labelContent->SetDocument(doc, PR_FALSE);
|
|
NS_RELEASE(doc);
|
|
mContent->AppendChildTo(labelContent, PR_FALSE);
|
|
*/
|
|
aChildList.AppendElement(labelContent);
|
|
|
|
// create button which drops the list down
|
|
result = NS_NewHTMLInputElement(&mButtonContent, nsHTMLAtoms::input);
|
|
//NS_ADDREF(mButtonContent);
|
|
if (NS_SUCCEEDED(result) && mButtonContent) {
|
|
mButtonContent->SetAttribute(kNameSpaceID_None, nsHTMLAtoms::type, NS_ConvertASCIItoUCS2("button"), PR_FALSE);
|
|
aChildList.AppendElement(mButtonContent);
|
|
}
|
|
}
|
|
|
|
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
|
|
nsCOMPtr<nsIStyleContext> styleContext;
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(content,
|
|
nsHTMLAtoms::mozDisplayComboboxControlFrame,
|
|
mStyleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(styleContext));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
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; }
|
|
nsCOMPtr<nsIStyleContext> textStyleContext;
|
|
rv = aPresContext->ResolvePseudoStyleContextFor(content,
|
|
nsHTMLAtoms::mozDisplayComboboxControlFrame,//nsHTMLAtoms::textPseudo,
|
|
styleContext,
|
|
PR_FALSE,
|
|
getter_AddRefs(textStyleContext));
|
|
if (NS_FAILED(rv)) { return rv; }
|
|
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, content, 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)
|
|
{
|
|
if (mDroppedDown) {
|
|
nsCOMPtr<nsIWidget> widget;
|
|
// Get parent view
|
|
nsIFrame * listFrame;
|
|
if (NS_OK == mListControlFrame->QueryInterface(kIFrameIID, (void **)&listFrame)) {
|
|
nsIView * view = nsnull;
|
|
listFrame->GetView(aPresContext, &view);
|
|
NS_ASSERTION(view != nsnull, "nsComboboxControlFrame view is null");
|
|
if (view) {
|
|
view->GetWidget(*getter_AddRefs(widget));
|
|
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;
|
|
}
|
|
}
|
|
|
|
/*if (mDisplayContent) {
|
|
nsCOMPtr<nsIContent> content(do_QueryInterface(mDisplayContent));
|
|
if (content) {
|
|
PRInt32 index;
|
|
if (NS_SUCCEEDED(mContent->IndexOf(content, index))) {
|
|
mContent->RemoveChildAt(index, PR_FALSE);
|
|
}
|
|
}
|
|
}*/
|
|
|
|
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(aPresContext, PR_FALSE);
|
|
|
|
nsIFrame * child = aChildList;
|
|
while (child != nsnull) {
|
|
nsIFormControlFrame* fcFrame = nsnull;
|
|
nsresult rv = child->QueryInterface(kIFormControlFrameIID, (void**)&fcFrame);
|
|
if (NS_FAILED(rv) && fcFrame == nsnull) {
|
|
mDisplayFrame = child;
|
|
break;
|
|
}
|
|
child->GetNextSibling(&child);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetAdditionalChildListName(PRInt32 aIndex,
|
|
nsIAtom** aListName) const
|
|
{
|
|
// Maintain a seperate 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_AREA_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;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// nsIStatefulFrame
|
|
// XXX Do we need to implement this here? It is already implemented in
|
|
// the ListControlFrame, our child...
|
|
//----------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::GetStateType(nsIPresContext* aPresContext,
|
|
nsIStatefulFrame::StateType* aStateType)
|
|
{
|
|
*aStateType = nsIStatefulFrame::eSelectType;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::SaveState(nsIPresContext* aPresContext, nsIPresState** aState)
|
|
{
|
|
if (!mListControlFrame) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// The ListControlFrame ignores requests to Save its state
|
|
// when it is owned by a combobox
|
|
// so we call the internal SaveState here
|
|
return mListControlFrame->SaveStateInternal(aPresContext, aState);
|
|
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComboboxControlFrame::RestoreState(nsIPresContext* aPresContext, nsIPresState* aState)
|
|
{
|
|
// The ListControlFrame ignores requests to Restore its state
|
|
// when it is owned by a combobox
|
|
// so we cache it here if the frame hasn't been created yet
|
|
// or we call the internal RestoreState here
|
|
if (!mListControlFrame) {
|
|
mPresState = aState;
|
|
return NS_OK;
|
|
}
|
|
|
|
return mListControlFrame->RestoreStateInternal(aPresContext, aState);
|
|
}
|
|
|
|
NS_METHOD
|
|
nsComboboxControlFrame::Paint(nsIPresContext* aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer)
|
|
{
|
|
#ifdef NOISY
|
|
printf("%p paint layer %d at (%d, %d, %d, %d)\n", this, aWhichLayer,
|
|
aDirtyRect.x, aDirtyRect.y, aDirtyRect.width, aDirtyRect.height);
|
|
#endif
|
|
nsAreaFrame::Paint(aPresContext,aRenderingContext,aDirtyRect,aWhichLayer);
|
|
|
|
//if (mGoodToGo) {
|
|
// return NS_OK;
|
|
//}
|
|
|
|
if (NS_FRAME_PAINT_LAYER_FOREGROUND == aWhichLayer) {
|
|
if (mDisplayFrame) {
|
|
aRenderingContext.PushState();
|
|
PRBool clipEmpty;
|
|
nsRect clipRect;
|
|
mDisplayFrame->GetRect(clipRect);
|
|
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kReplace, 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
|
|
nsCOMPtr<nsIEventStateManager> stateManager;
|
|
nsresult rv = mPresContext->GetEventStateManager(getter_AddRefs(stateManager));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIContent> content;
|
|
rv = stateManager->GetFocusedContent(getter_AddRefs(content));
|
|
if (NS_SUCCEEDED(rv) && content && content.get() == mContent) {
|
|
aRenderingContext.SetLineStyle(nsLineStyle_kDotted);
|
|
aRenderingContext.SetColor(0);
|
|
//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.PopState(clipEmpty);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|