1 files changed, 178 insertions, 0 deletions
diff --git a/layout/forms/nsGfxButtonControlFrame.cpp b/layout/forms/nsGfxButtonControlFrame.cpp
new file mode 100644
index 0000000000..37aa996c27
--- /dev/null
+++ b/layout/forms/nsGfxButtonControlFrame.cpp
@@ -0,0 +1,178 @@
+/* -*- 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::Destroy(DestroyContext& aContext) {
+  aContext.AddAnonymousContent(mTextContent.forget());
+  nsHTMLButtonControlFrame::Destroy(aContext);
+}
+
+#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);
+
+  auto type = form->ControlType();
+  const char* prop;
+  if (type == FormControlType::InputReset) {
+    prop = "Reset";
+  } else if (type == FormControlType::InputSubmit) {
+    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;
+}