1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/forms/nsGfxButtonControlFrame.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,234 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsGfxButtonControlFrame.h"
1.10 +#include "nsIFormControl.h"
1.11 +#include "nsGkAtoms.h"
1.12 +#include "nsAutoPtr.h"
1.13 +#include "nsStyleSet.h"
1.14 +#include "nsContentUtils.h"
1.15 +// MouseEvent suppression in PP
1.16 +#include "nsContentList.h"
1.17 +
1.18 +#include "nsIDOMHTMLInputElement.h"
1.19 +#include "nsTextNode.h"
1.20 +
1.21 +using namespace mozilla;
1.22 +
1.23 +nsGfxButtonControlFrame::nsGfxButtonControlFrame(nsStyleContext* aContext):
1.24 + nsHTMLButtonControlFrame(aContext)
1.25 +{
1.26 +}
1.27 +
1.28 +nsIFrame*
1.29 +NS_NewGfxButtonControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
1.30 +{
1.31 + return new (aPresShell) nsGfxButtonControlFrame(aContext);
1.32 +}
1.33 +
1.34 +NS_IMPL_FRAMEARENA_HELPERS(nsGfxButtonControlFrame)
1.35 +
1.36 +void nsGfxButtonControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
1.37 +{
1.38 + nsContentUtils::DestroyAnonymousContent(&mTextContent);
1.39 + nsHTMLButtonControlFrame::DestroyFrom(aDestructRoot);
1.40 +}
1.41 +
1.42 +nsIAtom*
1.43 +nsGfxButtonControlFrame::GetType() const
1.44 +{
1.45 + return nsGkAtoms::gfxButtonControlFrame;
1.46 +}
1.47 +
1.48 +#ifdef DEBUG_FRAME_DUMP
1.49 +nsresult
1.50 +nsGfxButtonControlFrame::GetFrameName(nsAString& aResult) const
1.51 +{
1.52 + return MakeFrameName(NS_LITERAL_STRING("ButtonControl"), aResult);
1.53 +}
1.54 +#endif
1.55 +
1.56 +// Create the text content used as label for the button.
1.57 +// The frame will be generated by the frame constructor.
1.58 +nsresult
1.59 +nsGfxButtonControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
1.60 +{
1.61 + nsXPIDLString label;
1.62 + GetLabel(label);
1.63 +
1.64 + // Add a child text content node for the label
1.65 + mTextContent = new nsTextNode(mContent->NodeInfo()->NodeInfoManager());
1.66 +
1.67 + // set the value of the text node and add it to the child list
1.68 + mTextContent->SetText(label, false);
1.69 + aElements.AppendElement(mTextContent);
1.70 +
1.71 + return NS_OK;
1.72 +}
1.73 +
1.74 +void
1.75 +nsGfxButtonControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
1.76 + uint32_t aFilter)
1.77 +{
1.78 + aElements.MaybeAppendElement(mTextContent);
1.79 +}
1.80 +
1.81 +// Create the text content used as label for the button.
1.82 +// The frame will be generated by the frame constructor.
1.83 +nsIFrame*
1.84 +nsGfxButtonControlFrame::CreateFrameFor(nsIContent* aContent)
1.85 +{
1.86 + nsIFrame * newFrame = nullptr;
1.87 +
1.88 + if (aContent == mTextContent) {
1.89 + nsIFrame * parentFrame = mFrames.FirstChild();
1.90 +
1.91 + nsPresContext* presContext = PresContext();
1.92 + nsRefPtr<nsStyleContext> textStyleContext;
1.93 + textStyleContext = presContext->StyleSet()->
1.94 + ResolveStyleForNonElement(mStyleContext);
1.95 +
1.96 + newFrame = NS_NewTextFrame(presContext->PresShell(), textStyleContext);
1.97 + // initialize the text frame
1.98 + newFrame->Init(mTextContent, parentFrame, nullptr);
1.99 + mTextContent->SetPrimaryFrame(newFrame);
1.100 + }
1.101 +
1.102 + return newFrame;
1.103 +}
1.104 +
1.105 +NS_QUERYFRAME_HEAD(nsGfxButtonControlFrame)
1.106 + NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
1.107 +NS_QUERYFRAME_TAIL_INHERITING(nsHTMLButtonControlFrame)
1.108 +
1.109 +// Initially we hardcoded the default strings here.
1.110 +// Next, we used html.css to store the default label for various types
1.111 +// of buttons. (nsGfxButtonControlFrame::DoNavQuirksReflow rev 1.20)
1.112 +// However, since html.css is not internationalized, we now grab the default
1.113 +// label from a string bundle as is done for all other UI strings.
1.114 +// See bug 16999 for further details.
1.115 +nsresult
1.116 +nsGfxButtonControlFrame::GetDefaultLabel(nsXPIDLString& aString) const
1.117 +{
1.118 + nsCOMPtr<nsIFormControl> form = do_QueryInterface(mContent);
1.119 + NS_ENSURE_TRUE(form, NS_ERROR_UNEXPECTED);
1.120 +
1.121 + int32_t type = form->GetType();
1.122 + const char *prop;
1.123 + if (type == NS_FORM_INPUT_RESET) {
1.124 + prop = "Reset";
1.125 + }
1.126 + else if (type == NS_FORM_INPUT_SUBMIT) {
1.127 + prop = "Submit";
1.128 + }
1.129 + else {
1.130 + aString.Truncate();
1.131 + return NS_OK;
1.132 + }
1.133 +
1.134 + return nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
1.135 + prop, aString);
1.136 +}
1.137 +
1.138 +nsresult
1.139 +nsGfxButtonControlFrame::GetLabel(nsXPIDLString& aLabel)
1.140 +{
1.141 + // Get the text from the "value" property on our content if there is
1.142 + // one; otherwise set it to a default value (localized).
1.143 + nsresult rv;
1.144 + nsCOMPtr<nsIDOMHTMLInputElement> elt = do_QueryInterface(mContent);
1.145 + if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::value) && elt) {
1.146 + rv = elt->GetValue(aLabel);
1.147 + } else {
1.148 + // Generate localized label.
1.149 + // We can't make any assumption as to what the default would be
1.150 + // because the value is localized for non-english platforms, thus
1.151 + // it might not be the string "Reset", "Submit Query", or "Browse..."
1.152 + rv = GetDefaultLabel(aLabel);
1.153 + }
1.154 +
1.155 + NS_ENSURE_SUCCESS(rv, rv);
1.156 +
1.157 + // Compress whitespace out of label if needed.
1.158 + if (!StyleText()->WhiteSpaceIsSignificant()) {
1.159 + aLabel.CompressWhitespace();
1.160 + } else if (aLabel.Length() > 2 && aLabel.First() == ' ' &&
1.161 + aLabel.CharAt(aLabel.Length() - 1) == ' ') {
1.162 + // This is a bit of a hack. The reason this is here is as follows: we now
1.163 + // have default padding on our buttons to make them non-ugly.
1.164 + // Unfortunately, IE-windows does not have such padding, so people will
1.165 + // stick values like " ok " (with the spaces) in the buttons in an attempt
1.166 + // to make them look decent. Unfortunately, if they do this the button
1.167 + // looks way too big in Mozilla. Worse yet, if they do this _and_ set a
1.168 + // fixed width for the button we run into trouble because our focus-rect
1.169 + // border/padding and outer border take up 10px of the horizontal button
1.170 + // space or so; the result is that the text is misaligned, even with the
1.171 + // recentering we do in nsHTMLButtonControlFrame::Reflow. So to solve
1.172 + // this, even if the whitespace is significant, single leading and trailing
1.173 + // _spaces_ (and not other whitespace) are removed. The proper solution,
1.174 + // of course, is to not have the focus rect painting taking up 6px of
1.175 + // horizontal space. We should do that instead (via XBL form controls or
1.176 + // changing the renderer) and remove this.
1.177 + aLabel.Cut(0, 1);
1.178 + aLabel.Truncate(aLabel.Length() - 1);
1.179 + }
1.180 +
1.181 + return NS_OK;
1.182 +}
1.183 +
1.184 +nsresult
1.185 +nsGfxButtonControlFrame::AttributeChanged(int32_t aNameSpaceID,
1.186 + nsIAtom* aAttribute,
1.187 + int32_t aModType)
1.188 +{
1.189 + nsresult rv = NS_OK;
1.190 +
1.191 + // If the value attribute is set, update the text of the label
1.192 + if (nsGkAtoms::value == aAttribute) {
1.193 + if (mTextContent && mContent) {
1.194 + nsXPIDLString label;
1.195 + rv = GetLabel(label);
1.196 + NS_ENSURE_SUCCESS(rv, rv);
1.197 +
1.198 + mTextContent->SetText(label, true);
1.199 + } else {
1.200 + rv = NS_ERROR_UNEXPECTED;
1.201 + }
1.202 +
1.203 + // defer to HTMLButtonControlFrame
1.204 + } else {
1.205 + rv = nsHTMLButtonControlFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
1.206 + }
1.207 + return rv;
1.208 +}
1.209 +
1.210 +bool
1.211 +nsGfxButtonControlFrame::IsLeaf() const
1.212 +{
1.213 + return true;
1.214 +}
1.215 +
1.216 +nsIFrame*
1.217 +nsGfxButtonControlFrame::GetContentInsertionFrame()
1.218 +{
1.219 + return this;
1.220 +}
1.221 +
1.222 +nsresult
1.223 +nsGfxButtonControlFrame::HandleEvent(nsPresContext* aPresContext,
1.224 + WidgetGUIEvent* aEvent,
1.225 + nsEventStatus* aEventStatus)
1.226 +{
1.227 + // Override the HandleEvent to prevent the nsFrame::HandleEvent
1.228 + // from being called. The nsFrame::HandleEvent causes the button label
1.229 + // to be selected (Drawn with an XOR rectangle over the label)
1.230 +
1.231 + // do we have user-input style?
1.232 + const nsStyleUserInterface* uiStyle = StyleUserInterface();
1.233 + if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE || uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
1.234 + return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
1.235 +
1.236 + return NS_OK;
1.237 +}
