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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsGfxButtonControlFrame.h"
#include "nsIFormControl.h"
#include "nsGkAtoms.h"
#include "mozilla/StyleSetHandle.h"
#include "mozilla/StyleSetHandleInlines.h"
#include "nsContentUtils.h"
// MouseEvent suppression in PP
#include "nsContentList.h"
#include "nsIDOMHTMLInputElement.h"
#include "nsTextNode.h"
using namespace mozilla;
nsGfxButtonControlFrame::nsGfxButtonControlFrame(nsStyleContext* aContext):
nsHTMLButtonControlFrame(aContext)
{
}
nsContainerFrame*
NS_NewGfxButtonControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsGfxButtonControlFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsGfxButtonControlFrame)
void nsGfxButtonControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
nsContentUtils::DestroyAnonymousContent(&mTextContent);
nsHTMLButtonControlFrame::DestroyFrom(aDestructRoot);
}
nsIAtom*
nsGfxButtonControlFrame::GetType() const
{
return nsGkAtoms::gfxButtonControlFrame;
}
#ifdef DEBUG_FRAME_DUMP
nsresult
nsGfxButtonControlFrame::GetFrameName(nsAString& aResult) const
{
return MakeFrameName(NS_LITERAL_STRING("ButtonControl"), aResult);
}
#endif
// Create the text content used as label for the button.
// The frame will be generated by the frame constructor.
nsresult
nsGfxButtonControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsXPIDLString label;
GetLabel(label);
// Add a child text content node for the label
mTextContent = new nsTextNode(mContent->NodeInfo()->NodeInfoManager());
// set the value of the text node and add it to the child list
mTextContent->SetText(label, false);
aElements.AppendElement(mTextContent);
return NS_OK;
}
void
nsGfxButtonControlFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter)
{
if (mTextContent) {
aElements.AppendElement(mTextContent);
}
}
NS_QUERYFRAME_HEAD(nsGfxButtonControlFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_TAIL_INHERITING(nsHTMLButtonControlFrame)
// Initially we hardcoded the default strings here.
// Next, we used html.css to store the default label for various types
// of buttons. (nsGfxButtonControlFrame::DoNavQuirksReflow rev 1.20)
// However, since html.css is not internationalized, we now grab the default
// label from a string bundle as is done for all other UI strings.
// See bug 16999 for further details.
nsresult
nsGfxButtonControlFrame::GetDefaultLabel(nsXPIDLString& aString) const
{
nsCOMPtr<nsIFormControl> form = do_QueryInterface(mContent);
NS_ENSURE_TRUE(form, NS_ERROR_UNEXPECTED);
int32_t type = form->GetType();
const char *prop;
if (type == NS_FORM_INPUT_RESET) {
prop = "Reset";
}
else if (type == NS_FORM_INPUT_SUBMIT) {
prop = "Submit";
}
else {
aString.Truncate();
return NS_OK;
}
return nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
prop, aString);
}
nsresult
nsGfxButtonControlFrame::GetLabel(nsXPIDLString& aLabel)
{
// Get the text from the "value" property on our content if there is
// one; otherwise set it to a default value (localized).
nsresult rv;
nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::value) && elt) {
rv = elt->GetValue(aLabel);
} else {
// Generate localized label.
// We can't make any assumption as to what the default would be
// because the value is localized for non-english platforms, thus
// it might not be the string "Reset", "Submit Query", or "Browse..."
rv = GetDefaultLabel(aLabel);
}
NS_ENSURE_SUCCESS(rv, rv);
// Compress whitespace out of label if needed.
if (!StyleText()->WhiteSpaceIsSignificant()) {
aLabel.CompressWhitespace();
} else if (aLabel.Length() > 2 && aLabel.First() == ' ' &&
aLabel.CharAt(aLabel.Length() - 1) == ' ') {
// This is a bit of a hack. The reason this is here is as follows: we now
// have default padding on our buttons to make them non-ugly.
// Unfortunately, IE-windows does not have such padding, so people will
// stick values like " ok " (with the spaces) in the buttons in an attempt
// to make them look decent. Unfortunately, if they do this the button
// looks way too big in Mozilla. Worse yet, if they do this _and_ set a
// fixed width for the button we run into trouble because our focus-rect
// border/padding and outer border take up 10px of the horizontal button
// space or so; the result is that the text is misaligned, even with the
// recentering we do in nsHTMLButtonControlFrame::Reflow. So to solve
// this, even if the whitespace is significant, single leading and trailing
// _spaces_ (and not other whitespace) are removed. The proper solution,
// of course, is to not have the focus rect painting taking up 6px of
// horizontal space. We should do that instead (via XBL form controls or
// changing the renderer) and remove this.
aLabel.Cut(0, 1);
aLabel.Truncate(aLabel.Length() - 1);
}
return NS_OK;
}
nsresult
nsGfxButtonControlFrame::AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
nsresult rv = NS_OK;
// If the value attribute is set, update the text of the label
if (nsGkAtoms::value == aAttribute) {
if (mTextContent && mContent) {
nsXPIDLString label;
rv = GetLabel(label);
NS_ENSURE_SUCCESS(rv, rv);
mTextContent->SetText(label, true);
} else {
rv = NS_ERROR_UNEXPECTED;
}
// defer to HTMLButtonControlFrame
} else {
rv = nsHTMLButtonControlFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
}
return rv;
}
bool
nsGfxButtonControlFrame::IsLeaf() const
{
return true;
}
nsContainerFrame*
nsGfxButtonControlFrame::GetContentInsertionFrame()
{
return this;
}
nsresult
nsGfxButtonControlFrame::HandleEvent(nsPresContext* aPresContext,
WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
// Override the HandleEvent to prevent the nsFrame::HandleEvent
// from being called. The nsFrame::HandleEvent causes the button label
// to be selected (Drawn with an XOR rectangle over the label)
// do we have user-input style?
const nsStyleUserInterface* uiStyle = StyleUserInterface();
if (uiStyle->mUserInput == StyleUserInput::None ||
uiStyle->mUserInput == StyleUserInput::Disabled) {
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
return NS_OK;
}
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