First Checked In.
git-svn-id: svn://10.0.0.236/trunk@42405 18797224-902f-48f8-a5cc-f745e15eee43
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pierre%netscape.com
330
mozilla/layout/html/forms/src/nsNativeFormControlFrame.cpp
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330
mozilla/layout/html/forms/src/nsNativeFormControlFrame.cpp
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/* -*- 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsCOMPtr.h"
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#include "nsHTMLAtoms.h"
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#include "nsWidgetsCID.h"
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#include "nsViewsCID.h"
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#include "nsIDeviceContext.h"
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#include "nsIPresShell.h"
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#include "nsIViewManager.h"
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#include "nsIComponentManager.h"
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#include "nsIFormControl.h"
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#include "nsFormFrame.h"
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#include "nsNativeFormControlFrame.h"
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static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID);
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static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
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static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
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nsNativeFormControlFrame::nsNativeFormControlFrame()
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: Inherited()
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{
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mLastMouseState = eMouseNone;
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mWidget = nsnull;
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}
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nsNativeFormControlFrame::~nsNativeFormControlFrame()
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{
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NS_IF_RELEASE(mWidget);
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}
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NS_METHOD
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nsNativeFormControlFrame::Reflow(nsIPresContext& aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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if (mDidInit) {
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return Inherited::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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}
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nsresult result = NS_OK;
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nsCOMPtr<nsIDeviceContext> dx;
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aPresContext.GetDeviceContext(getter_AddRefs(dx));
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PRBool requiresWidget = PR_TRUE;
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// Checkto see if the device context supports widgets at all
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if (dx) {
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dx->SupportsNativeWidgets(requiresWidget);
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}
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nsWidgetRendering mode;
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aPresContext.GetWidgetRenderingMode(&mode);
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if ((eWidgetRendering_Gfx == mode) || (eWidgetRendering_PartialGfx == mode)) {
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// Check with the frame to see if requires a widget to render
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if (PR_TRUE == requiresWidget) {
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RequiresWidget(requiresWidget);
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}
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}
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if (! requiresWidget) {
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return Inherited::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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}
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// add ourself as an nsIFormControlFrame
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if (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
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nsFormFrame::AddFormControlFrame(aPresContext, *this);
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}
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GetDesiredSize(&aPresContext, aReflowState, aDesiredSize, mWidgetSize);
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{
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nsCOMPtr<nsIPresShell> presShell;
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aPresContext.GetShell(getter_AddRefs(presShell));
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nsCOMPtr<nsIViewManager> viewMan;
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presShell->GetViewManager(getter_AddRefs(viewMan));
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nsRect boundBox(0, 0, aDesiredSize.width, aDesiredSize.height);
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// absolutely positioned controls already have a view but not a widget
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nsIView* view = nsnull;
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GetView(&view);
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if (nsnull == view) {
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result = nsComponentManager::CreateInstance(kViewCID, nsnull, kIViewIID, (void **)&view);
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if (!NS_SUCCEEDED(result)) {
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NS_ASSERTION(0, "Could not create view for form control");
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aStatus = NS_FRAME_NOT_COMPLETE;
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return result;
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}
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nsIFrame* parWithView;
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nsIView *parView;
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GetParentWithView(&parWithView);
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parWithView->GetView(&parView);
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// initialize the view as hidden since we don't know the (x,y) until Paint
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result = view->Init(viewMan, boundBox, parView, nsnull, nsViewVisibility_kHide);
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if (NS_OK != result) {
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NS_ASSERTION(0, "view initialization failed");
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aStatus = NS_FRAME_NOT_COMPLETE;
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return NS_OK;
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}
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viewMan->InsertChild(parView, view, 0);
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SetView(view);
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}
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PRInt32 type;
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GetType(&type);
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const nsIID& id = GetCID();
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if ((NS_FORM_INPUT_HIDDEN != type) && (PR_TRUE == requiresWidget)) {
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// Do the following only if a widget is created
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nsWidgetInitData* initData = GetWidgetInitData(aPresContext); // needs to be deleted
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view->CreateWidget(id, initData);
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if (nsnull != initData) {
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delete(initData);
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}
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// set our widget
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result = GetWidget(view, &mWidget);
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if ((PR_FALSE == NS_SUCCEEDED(result)) || (nsnull == mWidget)) { // keep the ref on mWidget
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NS_ASSERTION(0, "could not get widget");
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}
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}
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PostCreateWidget(&aPresContext, aDesiredSize.width, aDesiredSize.height);
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mDidInit = PR_TRUE;
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if ((aDesiredSize.width != boundBox.width) || (aDesiredSize.height != boundBox.height)) {
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viewMan->ResizeView(view, aDesiredSize.width, aDesiredSize.height);
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}
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}
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aDesiredSize.ascent = aDesiredSize.height;
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aDesiredSize.descent = 0;
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if (nsnull != aDesiredSize.maxElementSize) {
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//XXX aDesiredSize.AddBorderPaddingToMaxElementSize(borderPadding);
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}
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aStatus = NS_FRAME_COMPLETE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsNativeFormControlFrame::AttributeChanged(nsIPresContext* aPresContext,
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nsIContent* aChild,
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nsIAtom* aAttribute,
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PRInt32 aHint)
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{
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if (mWidget) {
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if (nsHTMLAtoms::disabled == aAttribute) {
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mWidget->Enable(!nsFormFrame::GetDisabled(this));
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}
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}
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return NS_OK;
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}
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void
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nsNativeFormControlFrame::SetColors(nsIPresContext& aPresContext)
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{
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if (mWidget) {
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nsCompatibility mode;
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aPresContext.GetCompatibilityMode(&mode);
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const nsStyleColor* color =
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(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
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if (nsnull != color) {
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if (!(NS_STYLE_BG_COLOR_TRANSPARENT & color->mBackgroundFlags)) {
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mWidget->SetBackgroundColor(color->mBackgroundColor);
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#ifdef bug_1021_closed
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} else if (eCompatibility_NavQuirks == mode) {
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#else
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} else {
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#endif
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mWidget->SetBackgroundColor(NS_RGB(0xFF, 0xFF, 0xFF));
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}
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mWidget->SetForegroundColor(color->mColor);
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}
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}
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}
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// native widgets don't need to repaint
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void
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nsNativeFormControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
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{
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if (mWidget) {
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if (aOn) {
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mWidget->SetFocus();
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}
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else {
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//Unsetting of focus on native widget is accomplised
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//by pushing focus up to its parent
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nsIWidget *parentWidget = mWidget->GetParent();
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if (parentWidget) {
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parentWidget->SetFocus();
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NS_RELEASE(parentWidget);
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}
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}
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}
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}
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nsresult
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nsNativeFormControlFrame::GetWidget(nsIWidget** aWidget)
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{
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if (mWidget) {
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NS_ADDREF(mWidget);
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*aWidget = mWidget;
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mWidget->Enable(!nsFormFrame::GetDisabled(this));
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return NS_OK;
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} else {
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*aWidget = nsnull;
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return NS_FORM_NOTOK;
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}
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}
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nsresult
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nsNativeFormControlFrame::GetWidget(nsIView* aView, nsIWidget** aWidget)
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{
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nsIWidget* widget;
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aView->GetWidget(widget);
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nsresult result;
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if (nsnull == widget) {
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*aWidget = nsnull;
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result = NS_ERROR_FAILURE;
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} else {
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result = widget->QueryInterface(kIWidgetIID, (void**)aWidget); // keep the ref
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if (NS_FAILED(result)) {
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NS_ASSERTION(0, "The widget interface is invalid"); // need to print out more details of the widget
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}
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NS_RELEASE(widget);
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}
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return result;
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}
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NS_METHOD nsNativeFormControlFrame::HandleEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus)
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{
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if (nsnull == mWidget) {
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return Inherited::HandleEvent(aPresContext, aEvent, aEventStatus);
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}
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if (nsEventStatus_eConsumeNoDefault == aEventStatus) {
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return NS_OK;
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}
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// make sure that the widget in the event is this input
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// XXX if there is no view, it could be an image button. Unfortunately,
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// every image button will get every event.
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nsIView* view;
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GetView(&view);
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if (view) {
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if (mWidget != aEvent->widget) {
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aEventStatus = nsEventStatus_eIgnore;
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return NS_OK;
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}
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}
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// if not native then use the NS_MOUSE_LEFT_CLICK to see if pressed
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// unfortunately native widgets don't seem to handle this right.
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// so use the old code for native stuff. -EDV
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//printf(" %d %d %d %d (%d,%d) \n", this, aEvent->widget, aEvent->widgetSupports,
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// aEvent->message, aEvent->point.x, aEvent->point.y);
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PRInt32 type;
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GetType(&type);
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switch (aEvent->message) {
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case NS_MOUSE_ENTER:
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mLastMouseState = eMouseEnter;
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break;
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case NS_MOUSE_LEFT_BUTTON_DOWN:
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if (NS_FORM_INPUT_IMAGE == type) {
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mLastMouseState = eMouseDown;
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} else {
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mLastMouseState = (eMouseEnter == mLastMouseState) ? eMouseDown : eMouseNone;
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}
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break;
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case NS_MOUSE_LEFT_BUTTON_UP:
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if (eMouseDown == mLastMouseState) {
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MouseClicked(&aPresContext);
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}
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mLastMouseState = eMouseEnter;
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break;
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case NS_MOUSE_EXIT:
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mLastMouseState = eMouseNone;
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break;
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case NS_CONTROL_CHANGE:
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ControlChanged(&aPresContext);
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break;
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case NS_KEY_DOWN:
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return Inherited::HandleEvent(aPresContext, aEvent, aEventStatus);
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}
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aEventStatus = nsEventStatus_eConsumeDoDefault;
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return NS_OK;
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}
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