/* -*- 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); } } // Create the text content used as label for the button. // The frame will be generated by the frame constructor. nsIFrame* nsGfxButtonControlFrame::CreateFrameFor(nsIContent* aContent) { nsIFrame * newFrame = nullptr; if (aContent == mTextContent) { nsContainerFrame* parentFrame = do_QueryFrame(mFrames.FirstChild()); nsPresContext* presContext = PresContext(); RefPtr<nsStyleContext> textStyleContext; textStyleContext = presContext->StyleSet()-> ResolveStyleForText(mTextContent, mStyleContext); newFrame = NS_NewTextFrame(presContext->PresShell(), textStyleContext); // initialize the text frame newFrame->Init(mTextContent, parentFrame, nullptr); mTextContent->SetPrimaryFrame(newFrame); } return newFrame; } 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; }