зеркало из https://github.com/mozilla/pjs.git
229 строки
6.3 KiB
C++
229 строки
6.3 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 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 "nsGfxButtonControlFrame.h"
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#include "nsIButton.h"
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#include "nsWidgetsCID.h"
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static NS_DEFINE_IID(kIFormControlIID, NS_IFORMCONTROL_IID);
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static NS_DEFINE_IID(kIButtonIID, NS_IBUTTON_IID);
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const nscoord kSuggestedNotSet = -1;
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nsGfxButtonControlFrame::nsGfxButtonControlFrame()
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{
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mRenderer.SetNameSpace(kNameSpaceID_None);
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mSuggestedWidth = kSuggestedNotSet;
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mSuggestedHeight = kSuggestedNotSet;
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}
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PRBool
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nsGfxButtonControlFrame::IsSuccessful(nsIFormControlFrame* aSubmitter)
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{
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PRInt32 type;
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GetType(&type);
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if ((NS_FORM_INPUT_HIDDEN == type) || (this == aSubmitter)) {
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// Can not use the nsHTMLButtonControlFrame::IsSuccessful because
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// it will fail it's test of (this==aSubmitter)
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nsAutoString name;
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return (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
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} else {
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return PR_FALSE;
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}
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}
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PRInt32
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nsGfxButtonControlFrame::GetMaxNumValues()
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{
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PRInt32 type;
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GetType(&type);
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if ((NS_FORM_INPUT_SUBMIT == type) || (NS_FORM_INPUT_HIDDEN == type)) {
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return 1;
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} else {
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return 0;
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}
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}
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PRBool
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nsGfxButtonControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames)
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{
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nsAutoString name;
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nsresult result = GetName(&name);
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if ((aMaxNumValues <= 0) || (NS_CONTENT_ATTR_HAS_VALUE != result)) {
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return PR_FALSE;
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}
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PRInt32 type;
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GetType(&type);
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if (NS_FORM_INPUT_RESET == type) {
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aNumValues = 0;
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return PR_FALSE;
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} else {
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nsAutoString value;
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GetValue(&value);
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aValues[0] = value;
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aNames[0] = name;
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aNumValues = 1;
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return PR_TRUE;
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}
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}
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nsresult
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NS_NewGfxButtonControlFrame(nsIFrame** aNewFrame)
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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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nsGfxButtonControlFrame* it = new nsGfxButtonControlFrame;
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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*aNewFrame = it;
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return NS_OK;
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}
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void
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nsGfxButtonControlFrame::MouseClicked(nsIPresContext* aPresContext)
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{
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PRInt32 type;
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GetType(&type);
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if ((nsnull != mFormFrame) && !nsFormFrame::GetDisabled(this)) {
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nsEventStatus status = nsEventStatus_eIgnore;
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nsEvent event;
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event.eventStructType = NS_EVENT;
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nsIContent *formContent = nsnull;
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mFormFrame->GetContent(&formContent);
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switch(type) {
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case NS_FORM_INPUT_RESET:
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event.message = NS_FORM_RESET;
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if (nsnull != formContent) {
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formContent->HandleDOMEvent(*aPresContext, &event, nsnull, NS_EVENT_FLAG_INIT, status);
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}
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if (nsEventStatus_eConsumeNoDefault != status) {
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mFormFrame->OnReset();
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}
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break;
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case NS_FORM_INPUT_SUBMIT:
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event.message = NS_FORM_SUBMIT;
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if (nsnull != formContent) {
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formContent->HandleDOMEvent(*aPresContext, &event, nsnull, NS_EVENT_FLAG_INIT, status);
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}
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if (nsEventStatus_eConsumeNoDefault != status) {
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mFormFrame->OnSubmit(aPresContext, this);
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}
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}
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NS_IF_RELEASE(formContent);
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}
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}
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const nsIID&
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nsGfxButtonControlFrame::GetIID()
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{
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static NS_DEFINE_IID(kButtonIID, NS_IBUTTON_IID);
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return kButtonIID;
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}
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const nsIID&
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nsGfxButtonControlFrame::GetCID()
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{
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static NS_DEFINE_IID(kButtonCID, NS_BUTTON_CID);
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return kButtonCID;
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::GetFrameName(nsString& aResult) const
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{
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return MakeFrameName("ButtonControl", aResult);
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::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 (!mFormFrame && (eReflowReason_Initial == aReflowState.reason)) {
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nsFormFrame::AddFormControlFrame(aPresContext, *this);
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}
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if ((kSuggestedNotSet != mSuggestedWidth) ||
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(kSuggestedNotSet != mSuggestedHeight))
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{
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nsHTMLReflowState suggestedReflowState(aReflowState);
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// Honor the suggested width and/or height.
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if (kSuggestedNotSet != mSuggestedWidth) {
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suggestedReflowState.mComputedWidth = mSuggestedWidth;
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suggestedReflowState.mComputedWidth -= aReflowState.mComputedBorderPadding.left + aReflowState.mComputedBorderPadding.right;
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}
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if (kSuggestedNotSet != mSuggestedHeight) {
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suggestedReflowState.mComputedHeight = mSuggestedHeight;
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suggestedReflowState.mComputedHeight -= aReflowState.mComputedBorderPadding.top + aReflowState.mComputedBorderPadding.bottom;
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}
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return nsHTMLButtonControlFrame::Reflow(aPresContext, aDesiredSize, suggestedReflowState, aStatus);
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} else {
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// Normal reflow.
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return nsHTMLButtonControlFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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}
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::SetSuggestedSize(nscoord aWidth, nscoord aHeight)
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{
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mSuggestedWidth = aWidth;
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mSuggestedHeight = aHeight;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsGfxButtonControlFrame::HandleEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus)
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{
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// Override the HandleEvent to prevent the nsFrame::HandleEvent
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// from being called. The nsFrame::HandleEvent causes the button label
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// to be selected (Drawn with an XOR rectangle over the label)
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// if disabled do nothing
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if (mRenderer.isDisabled()) {
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return NS_OK;
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}
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// lets see if the button was clicked
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switch (aEvent->message) {
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case NS_MOUSE_LEFT_CLICK:
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MouseClicked(&aPresContext);
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break;
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}
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return NS_OK;
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}
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