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-rw-r--r--layout/forms/nsGfxButtonControlFrame.cpp179
1 files changed, 179 insertions, 0 deletions
diff --git a/layout/forms/nsGfxButtonControlFrame.cpp b/layout/forms/nsGfxButtonControlFrame.cpp
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+++ b/layout/forms/nsGfxButtonControlFrame.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/PresShell.h"
+#include "mozilla/dom/HTMLInputElement.h"
+#include "nsContentUtils.h"
+#include "nsTextNode.h"
+
+using namespace mozilla;
+
+nsGfxButtonControlFrame::nsGfxButtonControlFrame(ComputedStyle* aStyle,
+ nsPresContext* aPresContext)
+ : nsHTMLButtonControlFrame(aStyle, aPresContext, kClassID) {}
+
+nsContainerFrame* NS_NewGfxButtonControlFrame(PresShell* aPresShell,
+ ComputedStyle* aStyle) {
+ return new (aPresShell)
+ nsGfxButtonControlFrame(aStyle, aPresShell->GetPresContext());
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsGfxButtonControlFrame)
+
+void nsGfxButtonControlFrame::DestroyFrom(nsIFrame* aDestructRoot,
+ PostDestroyData& aPostDestroyData) {
+ aPostDestroyData.AddAnonymousContent(mTextContent.forget());
+ nsHTMLButtonControlFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
+}
+
+#ifdef DEBUG_FRAME_DUMP
+nsresult nsGfxButtonControlFrame::GetFrameName(nsAString& aResult) const {
+ return MakeFrameName(u"ButtonControl"_ns, 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) {
+ nsAutoString label;
+ nsresult rv = GetLabel(label);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Add a child text content node for the label
+ mTextContent = new (mContent->NodeInfo()->NodeInfoManager())
+ 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(nsAString& aString) const {
+ nsCOMPtr<nsIFormControl> form = do_QueryInterface(mContent);
+ NS_ENSURE_TRUE(form, NS_ERROR_UNEXPECTED);
+
+ int32_t type = form->ControlType();
+ 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::GetMaybeLocalizedString(
+ nsContentUtils::eFORMS_PROPERTIES, prop, mContent->OwnerDoc(), aString);
+}
+
+nsresult nsGfxButtonControlFrame::GetLabel(nsString& aLabel) {
+ // Get the text from the "value" property on our content if there is
+ // one; otherwise set it to a default value (localized).
+ auto* elt = dom::HTMLInputElement::FromNode(mContent);
+ if (elt && elt->HasAttr(nsGkAtoms::value)) {
+ elt->GetValue(aLabel, dom::CallerType::System);
+ } 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..."
+ nsresult rv;
+ 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 (changing the renderer) and
+ // remove this.
+ aLabel.Cut(0, 1);
+ aLabel.Truncate(aLabel.Length() - 1);
+ }
+
+ return NS_OK;
+}
+
+nsresult nsGfxButtonControlFrame::AttributeChanged(int32_t aNameSpaceID,
+ nsAtom* 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) {
+ nsAutoString 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;
+}
+
+nsContainerFrame* nsGfxButtonControlFrame::GetContentInsertionFrame() {
+ return this;
+}
+
+nsresult nsGfxButtonControlFrame::HandleEvent(nsPresContext* aPresContext,
+ WidgetGUIEvent* aEvent,
+ nsEventStatus* aEventStatus) {
+ // Override the HandleEvent to prevent the nsIFrame::HandleEvent
+ // from being called. The nsIFrame::HandleEvent causes the button label
+ // to be selected (Drawn with an XOR rectangle over the label)
+
+ if (IsContentDisabled()) {
+ return nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
+ }
+ return NS_OK;
+}