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https://gitlab.winehq.org/wine/wine-gecko.git
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e5eb83ac5a
This patch enables sharing of an nsAttrValue's MiscContainer between nodes for style rules. MiscContainers of type eCSSStyleRule are now refcounted (with some clever struct packing to ensure that the amount of memory allocated for MiscContainer remains unchanged on 32 and 64 bit). This infrastructure can be used to share most MiscContainer types in the future if we find advantages to sharing other types than just eCSSStyleRuley. A cache mapping strings to MiscContainers has been added to nsHTMLCSSStyleSheet. MiscContainers can be shared between nsAttrValues when one nsAttrValue is SetTo another nsAttrValue or when there is a cache hit in this cache. This patch also adds the ability to tell a style rule that it belongs to an nsHTMLCSSStyleSheet, with appropriate accessor functions to separate that from the existing case of belonging to an nsCSSStyleSheet. The primary use case is to reduce memory use for pages that have lots of inline style attributes with the same value. This can happen easily with large pages that are automatically generated. An (admittedly pathological) testcase in Bug 686975 sees over 250 MB of memory savings with this change. Reusing the same MiscContainer for multiple nodes saves the overhead of maintaining separate copies of the string containing the serialized value of the style attribute and of creating separate style rules for each node. Eliminating duplicate style rules enables further savings in layout through style context sharing. The testcase sees the amount of memory used by style contexts go from over 250 MB to 10 KB. Because the cache is based on the text value of the style attribute, it will not handle attributes that have different text values but are parsed into identical style rules. We also do not attempt to share MiscContainers when the node's base URI differs from the document URI. The effect of these limitations is expected to be low.
1462 lines
46 KiB
C++
1462 lines
46 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsCOMPtr.h"
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#include "nsTextControlFrame.h"
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#include "nsIDocument.h"
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#include "nsIFormControl.h"
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#include "nsIServiceManager.h"
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#include "nsFrameSelection.h"
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#include "nsIPlaintextEditor.h"
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#include "nsEditorCID.h"
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#include "nsLayoutCID.h"
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#include "nsIDocumentEncoder.h"
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#include "nsCaret.h"
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#include "nsISelectionListener.h"
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#include "nsIController.h"
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#include "nsIControllers.h"
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#include "nsIControllerContext.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIEditorIMESupport.h"
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#include "nsIPhonetic.h"
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#include "nsTextFragment.h"
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#include "nsEditProperty.h"
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#include "nsIDOMHTMLTextAreaElement.h"
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#include "nsINameSpaceManager.h"
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#include "nsINodeInfo.h"
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#include "nsFormControlFrame.h" //for registering accesskeys
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#include "nsIContent.h"
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#include "nsIAtom.h"
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#include "nsPresContext.h"
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#include "nsRenderingContext.h"
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#include "nsGkAtoms.h"
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#include "nsLayoutUtils.h"
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#include "nsIComponentManager.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMHTMLElement.h"
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#include "nsIPresShell.h"
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#include "nsBoxLayoutState.h"
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//for keylistener for "return" check
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#include "nsIDOMEventTarget.h"
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#include "nsIDocument.h" //observe documents to send onchangenotifications
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#include "nsIStyleSheet.h"//observe documents to send onchangenotifications
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#include "nsIStyleRule.h"//observe documents to send onchangenotifications
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#include "nsIDOMEventListener.h"//observe documents to send onchangenotifications
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#include "nsGUIEvent.h"
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#include "nsIDOMCharacterData.h" //for selection setting helper func
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#include "nsIDOMNodeList.h" //for selection setting helper func
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#include "nsIDOMRange.h" //for selection setting helper func
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#include "nsPIDOMWindow.h" //needed for notify selection changed to update the menus ect.
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#ifdef ACCESSIBILITY
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#include "nsAccessibilityService.h"
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#endif
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#include "nsIDOMNode.h"
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#include "nsITransactionManager.h"
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#include "nsIDOMText.h" //for multiline getselection
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#include "nsNodeInfoManager.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsINativeKeyBindings.h"
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#include "nsIJSContextStack.h"
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#include "nsFocusManager.h"
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#include "nsTextEditRules.h"
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#include "nsPresState.h"
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#include "nsContentList.h"
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#include "nsAttrValueInlines.h"
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#include "mozilla/Selection.h"
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#define DEFAULT_COLUMN_WIDTH 20
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using namespace mozilla;
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nsIFrame*
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NS_NewTextControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsTextControlFrame(aPresShell, aContext);
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsTextControlFrame)
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NS_QUERYFRAME_HEAD(nsTextControlFrame)
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NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
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NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
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NS_QUERYFRAME_ENTRY(nsITextControlFrame)
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NS_QUERYFRAME_ENTRY(nsIStatefulFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
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#ifdef ACCESSIBILITY
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already_AddRefed<Accessible>
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nsTextControlFrame::CreateAccessible()
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{
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService) {
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return accService->CreateHTMLTextFieldAccessible(mContent,
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PresContext()->PresShell());
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}
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return nullptr;
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}
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#endif
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#ifdef DEBUG
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class EditorInitializerEntryTracker {
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public:
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explicit EditorInitializerEntryTracker(nsTextControlFrame &frame)
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: mFrame(frame)
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, mFirstEntry(false)
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{
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if (!mFrame.mInEditorInitialization) {
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mFrame.mInEditorInitialization = true;
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mFirstEntry = true;
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}
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}
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~EditorInitializerEntryTracker()
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{
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if (mFirstEntry) {
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mFrame.mInEditorInitialization = false;
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}
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}
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bool EnteredMoreThanOnce() const { return !mFirstEntry; }
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private:
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nsTextControlFrame &mFrame;
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bool mFirstEntry;
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};
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#endif
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nsTextControlFrame::nsTextControlFrame(nsIPresShell* aShell, nsStyleContext* aContext)
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: nsContainerFrame(aContext)
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, mUseEditor(false)
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, mIsProcessing(false)
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#ifdef DEBUG
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, mInEditorInitialization(false)
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#endif
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{
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}
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nsTextControlFrame::~nsTextControlFrame()
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{
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}
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void
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nsTextControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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mScrollEvent.Revoke();
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EditorInitializer* initializer = (EditorInitializer*) Properties().Get(TextControlInitializer());
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if (initializer) {
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initializer->Revoke();
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Properties().Delete(TextControlInitializer());
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}
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// Unbind the text editor state object from the frame. The editor will live
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// on, but things like controllers will be released.
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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txtCtrl->UnbindFromFrame(this);
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nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
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nsContainerFrame::DestroyFrom(aDestructRoot);
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}
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nsIAtom*
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nsTextControlFrame::GetType() const
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{
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return nsGkAtoms::textInputFrame;
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}
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nsresult
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nsTextControlFrame::CalcIntrinsicSize(nsRenderingContext* aRenderingContext,
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nsSize& aIntrinsicSize,
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float aFontSizeInflation)
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{
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// Get leading and the Average/MaxAdvance char width
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nscoord lineHeight = 0;
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nscoord charWidth = 0;
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nscoord charMaxAdvance = 0;
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nsRefPtr<nsFontMetrics> fontMet;
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nsresult rv =
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nsLayoutUtils::GetFontMetricsForFrame(this, getter_AddRefs(fontMet),
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aFontSizeInflation);
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NS_ENSURE_SUCCESS(rv, rv);
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aRenderingContext->SetFont(fontMet);
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lineHeight =
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nsHTMLReflowState::CalcLineHeight(GetStyleContext(), NS_AUTOHEIGHT,
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aFontSizeInflation);
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charWidth = fontMet->AveCharWidth();
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charMaxAdvance = fontMet->MaxAdvance();
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// Set the width equal to the width in characters
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int32_t cols = GetCols();
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aIntrinsicSize.width = cols * charWidth;
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// To better match IE, take the maximum character width(in twips) and remove
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// 4 pixels add this on as additional padding(internalPadding). But only do
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// this if charMaxAdvance != charWidth; if they are equal, this is almost
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// certainly a fixed-width font.
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if (charWidth != charMaxAdvance) {
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nscoord internalPadding = NS_MAX(0, charMaxAdvance -
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nsPresContext::CSSPixelsToAppUnits(4));
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nscoord t = nsPresContext::CSSPixelsToAppUnits(1);
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// Round to a multiple of t
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nscoord rest = internalPadding % t;
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if (rest < t - rest) {
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internalPadding -= rest;
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} else {
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internalPadding += t - rest;
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}
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// Now add the extra padding on (so that small input sizes work well)
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aIntrinsicSize.width += internalPadding;
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} else {
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// This is to account for the anonymous <br> having a 1 twip width
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// in Full Standards mode, see BRFrame::Reflow and bug 228752.
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if (PresContext()->CompatibilityMode() == eCompatibility_FullStandards) {
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aIntrinsicSize.width += 1;
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}
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// Also add in the padding of our value div child. Note that it hasn't
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// been reflowed yet, so we can't get its used padding, but it shouldn't be
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// using percentage padding anyway.
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nsMargin childPadding;
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nsIFrame* firstChild = GetFirstPrincipalChild();
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if (firstChild && firstChild->GetStylePadding()->GetPadding(childPadding)) {
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aIntrinsicSize.width += childPadding.LeftRight();
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} else {
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NS_ERROR("Percentage padding on value div?");
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}
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}
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// Increment width with cols * letter-spacing.
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{
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const nsStyleCoord& lsCoord = GetStyleText()->mLetterSpacing;
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if (eStyleUnit_Coord == lsCoord.GetUnit()) {
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nscoord letterSpacing = lsCoord.GetCoordValue();
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if (letterSpacing != 0) {
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aIntrinsicSize.width += cols * letterSpacing;
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}
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}
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}
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// Set the height equal to total number of rows (times the height of each
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// line, of course)
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aIntrinsicSize.height = lineHeight * GetRows();
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// Add in the size of the scrollbars for textarea
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if (IsTextArea()) {
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nsIFrame* first = GetFirstPrincipalChild();
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nsIScrollableFrame *scrollableFrame = do_QueryFrame(first);
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NS_ASSERTION(scrollableFrame, "Child must be scrollable");
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if (scrollableFrame) {
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nsMargin scrollbarSizes =
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scrollableFrame->GetDesiredScrollbarSizes(PresContext(), aRenderingContext);
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aIntrinsicSize.width += scrollbarSizes.LeftRight();
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aIntrinsicSize.height += scrollbarSizes.TopBottom();;
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}
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}
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return NS_OK;
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}
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nsresult
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nsTextControlFrame::EnsureEditorInitialized()
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{
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// This method initializes our editor, if needed.
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// This code used to be called from CreateAnonymousContent(), but
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// when the editor set the initial string, it would trigger a
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// PresShell listener which called FlushPendingNotifications()
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// during frame construction. This was causing other form controls
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// to display wrong values. Additionally, calling this every time
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// a text frame control is instantiated means that we're effectively
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// instantiating the editor for all text fields, even if they
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// never get used. So, now this method is being called lazily only
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// when we actually need an editor.
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// Check if this method has been called already.
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// If so, just return early.
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if (mUseEditor)
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return NS_OK;
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nsIDocument* doc = mContent->GetCurrentDoc();
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NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
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nsWeakFrame weakFrame(this);
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// Flush out content on our document. Have to do this, because script
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// blockers don't prevent the sink flushing out content and notifying in the
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// process, which can destroy frames.
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doc->FlushPendingNotifications(Flush_ContentAndNotify);
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NS_ENSURE_TRUE(weakFrame.IsAlive(), NS_ERROR_FAILURE);
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// Make sure that editor init doesn't do things that would kill us off
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// (especially off the script blockers it'll create for its DOM mutations).
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nsAutoScriptBlocker scriptBlocker;
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// Time to mess with our security context... See comments in GetValue()
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// for why this is needed.
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nsCxPusher pusher;
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pusher.PushNull();
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// Make sure that we try to focus the content even if the method fails
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class EnsureSetFocus {
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public:
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explicit EnsureSetFocus(nsTextControlFrame* aFrame)
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: mFrame(aFrame) {}
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~EnsureSetFocus() {
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if (nsContentUtils::IsFocusedContent(mFrame->GetContent()))
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mFrame->SetFocus(true, false);
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}
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private:
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nsTextControlFrame *mFrame;
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};
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EnsureSetFocus makeSureSetFocusHappens(this);
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#ifdef DEBUG
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// Make sure we are not being called again until we're finished.
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// If reentrancy happens, just pretend that we don't have an editor.
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const EditorInitializerEntryTracker tracker(*this);
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NS_ASSERTION(!tracker.EnteredMoreThanOnce(),
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"EnsureEditorInitialized has been called while a previous call was in progress");
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#endif
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// Create an editor for the frame, if one doesn't already exist
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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nsresult rv = txtCtrl->CreateEditor();
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NS_ENSURE_SUCCESS(rv, rv);
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// Turn on mUseEditor so that subsequent calls will use the
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// editor.
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mUseEditor = true;
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// Set the selection to the beginning of the text field.
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if (weakFrame.IsAlive()) {
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SetSelectionEndPoints(0, 0);
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}
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return NS_OK;
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}
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nsresult
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nsTextControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
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{
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NS_ASSERTION(mContent, "We should have a content!");
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mState |= NS_FRAME_INDEPENDENT_SELECTION;
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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// Bind the frame to its text control
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nsresult rv = txtCtrl->BindToFrame(this);
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NS_ENSURE_SUCCESS(rv, rv);
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nsIContent* rootNode = txtCtrl->GetRootEditorNode();
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NS_ENSURE_TRUE(rootNode, NS_ERROR_OUT_OF_MEMORY);
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if (!aElements.AppendElement(rootNode))
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return NS_ERROR_OUT_OF_MEMORY;
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// Do we need a placeholder node?
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nsAutoString placeholderTxt;
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mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::placeholder,
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placeholderTxt);
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nsContentUtils::RemoveNewlines(placeholderTxt);
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mUsePlaceholder = !placeholderTxt.IsEmpty();
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// Create the placeholder anonymous content if needed.
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if (mUsePlaceholder) {
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nsIContent* placeholderNode = txtCtrl->CreatePlaceholderNode();
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NS_ENSURE_TRUE(placeholderNode, NS_ERROR_OUT_OF_MEMORY);
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if (!aElements.AppendElement(placeholderNode))
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return NS_ERROR_OUT_OF_MEMORY;
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}
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rv = UpdateValueDisplay(false);
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NS_ENSURE_SUCCESS(rv, rv);
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// textareas are eagerly initialized
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bool initEagerly = !IsSingleLineTextControl();
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if (!initEagerly) {
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// Also, input elements which have a cached selection should get eager
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// editor initialization.
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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initEagerly = txtCtrl->HasCachedSelection();
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}
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if (!initEagerly) {
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nsCOMPtr<nsIDOMHTMLElement> element = do_QueryInterface(txtCtrl);
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if (element) {
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// so are input text controls with spellcheck=true
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element->GetSpellcheck(&initEagerly);
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}
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}
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if (initEagerly) {
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NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
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"Someone forgot a script blocker?");
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EditorInitializer* initializer = (EditorInitializer*) Properties().Get(TextControlInitializer());
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if (initializer) {
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initializer->Revoke();
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}
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initializer = new EditorInitializer(this);
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Properties().Set(TextControlInitializer(),initializer);
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if (!nsContentUtils::AddScriptRunner(initializer)) {
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initializer->Revoke(); // paranoia
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Properties().Delete(TextControlInitializer());
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delete initializer;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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}
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return NS_OK;
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}
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void
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nsTextControlFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
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uint32_t aFilter)
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{
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nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
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NS_ASSERTION(txtCtrl, "Content not a text control element");
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aElements.MaybeAppendElement(txtCtrl->GetRootEditorNode());
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if (!(aFilter & nsIContent::eSkipPlaceholderContent))
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aElements.MaybeAppendElement(txtCtrl->GetPlaceholderNode());
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}
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nscoord
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nsTextControlFrame::GetPrefWidth(nsRenderingContext* aRenderingContext)
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{
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nscoord result = 0;
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DISPLAY_PREF_WIDTH(this, result);
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float inflation = nsLayoutUtils::FontSizeInflationFor(this);
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nsSize autoSize;
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CalcIntrinsicSize(aRenderingContext, autoSize, inflation);
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return autoSize.width;
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}
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nscoord
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nsTextControlFrame::GetMinWidth(nsRenderingContext* aRenderingContext)
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{
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// Our min width is just our preferred width if we have auto width.
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nscoord result;
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DISPLAY_MIN_WIDTH(this, result);
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result = GetPrefWidth(aRenderingContext);
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return result;
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}
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nsSize
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nsTextControlFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
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nsSize aCBSize, nscoord aAvailableWidth,
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nsSize aMargin, nsSize aBorder,
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nsSize aPadding, bool aShrinkWrap)
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{
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float inflation = nsLayoutUtils::FontSizeInflationFor(this);
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nsSize autoSize;
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nsresult rv = CalcIntrinsicSize(aRenderingContext, autoSize, inflation);
|
|
if (NS_FAILED(rv)) {
|
|
// What now?
|
|
autoSize.SizeTo(0, 0);
|
|
}
|
|
#ifdef DEBUG
|
|
// Note: Ancestor ComputeAutoSize only computes a width if we're auto-width
|
|
else if (GetStylePosition()->mWidth.GetUnit() == eStyleUnit_Auto) {
|
|
nsSize ancestorAutoSize =
|
|
nsContainerFrame::ComputeAutoSize(aRenderingContext,
|
|
aCBSize, aAvailableWidth,
|
|
aMargin, aBorder,
|
|
aPadding, aShrinkWrap);
|
|
// Disabled when there's inflation; see comment in GetPrefSize.
|
|
NS_ASSERTION(inflation != 1.0f || ancestorAutoSize.width == autoSize.width,
|
|
"Incorrect size computed by ComputeAutoSize?");
|
|
}
|
|
#endif
|
|
|
|
return autoSize;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
DO_GLOBAL_REFLOW_COUNT("nsTextControlFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
|
|
// make sure that the form registers itself on the initial/first reflow
|
|
if (mState & NS_FRAME_FIRST_REFLOW) {
|
|
nsFormControlFrame::RegUnRegAccessKey(this, true);
|
|
}
|
|
|
|
// set values of reflow's out parameters
|
|
aDesiredSize.width = aReflowState.ComputedWidth() +
|
|
aReflowState.mComputedBorderPadding.LeftRight();
|
|
aDesiredSize.height = aReflowState.ComputedHeight() +
|
|
aReflowState.mComputedBorderPadding.TopBottom();
|
|
|
|
// computation of the ascent wrt the input height
|
|
nscoord lineHeight = aReflowState.ComputedHeight();
|
|
float inflation = nsLayoutUtils::FontSizeInflationFor(this);
|
|
if (!IsSingleLineTextControl()) {
|
|
lineHeight = nsHTMLReflowState::CalcLineHeight(GetStyleContext(),
|
|
NS_AUTOHEIGHT, inflation);
|
|
}
|
|
nsRefPtr<nsFontMetrics> fontMet;
|
|
nsresult rv = nsLayoutUtils::GetFontMetricsForFrame(this,
|
|
getter_AddRefs(fontMet),
|
|
inflation);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// now adjust for our borders and padding
|
|
aDesiredSize.ascent =
|
|
nsLayoutUtils::GetCenteredFontBaseline(fontMet, lineHeight)
|
|
+ aReflowState.mComputedBorderPadding.top;
|
|
|
|
// overflow handling
|
|
aDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
// perform reflow on all kids
|
|
nsIFrame* kid = mFrames.FirstChild();
|
|
while (kid) {
|
|
ReflowTextControlChild(kid, aPresContext, aReflowState, aStatus, aDesiredSize);
|
|
kid = kid->GetNextSibling();
|
|
}
|
|
|
|
// take into account css properties that affect overflow handling
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsTextControlFrame::ReflowTextControlChild(nsIFrame* aKid,
|
|
nsPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus,
|
|
nsHTMLReflowMetrics& aParentDesiredSize)
|
|
{
|
|
// compute available size and frame offsets for child
|
|
nsSize availSize(aReflowState.ComputedWidth(),
|
|
aReflowState.ComputedHeight());
|
|
availSize.width = NS_MAX(availSize.width, 0);
|
|
availSize.height = NS_MAX(availSize.height, 0);
|
|
|
|
nsHTMLReflowState kidReflowState(aPresContext, aReflowState,
|
|
aKid, availSize);
|
|
|
|
// Set computed width and computed height for the child
|
|
nscoord width = availSize.width;
|
|
width -= kidReflowState.mComputedMargin.LeftRight() +
|
|
kidReflowState.mComputedBorderPadding.LeftRight();
|
|
width = NS_MAX(width, 0);
|
|
kidReflowState.SetComputedWidth(width);
|
|
|
|
nscoord height = availSize.height;
|
|
height -= kidReflowState.mComputedMargin.TopBottom() +
|
|
kidReflowState.mComputedBorderPadding.TopBottom();
|
|
height = NS_MAX(height, 0);
|
|
kidReflowState.SetComputedHeight(height);
|
|
|
|
// compute the offsets
|
|
nscoord xOffset = aReflowState.mComputedBorderPadding.left
|
|
+ kidReflowState.mComputedMargin.left;
|
|
nscoord yOffset = aReflowState.mComputedBorderPadding.top
|
|
+ kidReflowState.mComputedMargin.top;
|
|
|
|
// reflow the child
|
|
nsHTMLReflowMetrics desiredSize;
|
|
ReflowChild(aKid, aPresContext, desiredSize, kidReflowState,
|
|
xOffset, yOffset, 0, aStatus);
|
|
|
|
// place the child
|
|
FinishReflowChild(aKid, aPresContext, &kidReflowState,
|
|
desiredSize, xOffset, yOffset, 0);
|
|
|
|
// consider the overflow
|
|
aParentDesiredSize.mOverflowAreas.UnionWith(desiredSize.mOverflowAreas);
|
|
}
|
|
|
|
nsSize
|
|
nsTextControlFrame::GetMinSize(nsBoxLayoutState& aState)
|
|
{
|
|
// XXXbz why? Why not the nsBoxFrame sizes?
|
|
return nsBox::GetMinSize(aState);
|
|
}
|
|
|
|
bool
|
|
nsTextControlFrame::IsCollapsed()
|
|
{
|
|
// We're never collapsed in the box sense.
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
nsTextControlFrame::IsLeaf() const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::ScrollOnFocusEvent::Run()
|
|
{
|
|
if (mFrame) {
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(mFrame->GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
if (selCon) {
|
|
mFrame->mScrollEvent.Forget();
|
|
selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL,
|
|
nsISelectionController::SELECTION_FOCUS_REGION,
|
|
nsISelectionController::SCROLL_SYNCHRONOUS);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
//IMPLEMENTING NS_IFORMCONTROLFRAME
|
|
void nsTextControlFrame::SetFocus(bool aOn, bool aRepaint)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
// Revoke the previous scroll event if one exists
|
|
mScrollEvent.Revoke();
|
|
|
|
if (!aOn) {
|
|
return;
|
|
}
|
|
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
if (!selCon)
|
|
return;
|
|
|
|
nsCOMPtr<nsISelection> ourSel;
|
|
selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
|
|
getter_AddRefs(ourSel));
|
|
if (!ourSel) return;
|
|
|
|
nsIPresShell* presShell = PresContext()->GetPresShell();
|
|
nsRefPtr<nsCaret> caret = presShell->GetCaret();
|
|
if (!caret) return;
|
|
|
|
// Scroll the current selection into view
|
|
nsISelection *caretSelection = caret->GetCaretDOMSelection();
|
|
const bool isFocusedRightNow = ourSel == caretSelection;
|
|
if (!isFocusedRightNow) {
|
|
// Don't scroll the current selection if we've been focused using the mouse.
|
|
uint32_t lastFocusMethod = 0;
|
|
nsIDocument* doc = GetContent()->GetCurrentDoc();
|
|
if (doc) {
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
if (fm) {
|
|
fm->GetLastFocusMethod(doc->GetWindow(), &lastFocusMethod);
|
|
}
|
|
}
|
|
if (!(lastFocusMethod & nsIFocusManager::FLAG_BYMOUSE)) {
|
|
nsRefPtr<ScrollOnFocusEvent> event = new ScrollOnFocusEvent(this);
|
|
nsresult rv = NS_DispatchToCurrentThread(event);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mScrollEvent = event;
|
|
}
|
|
}
|
|
}
|
|
|
|
// tell the caret to use our selection
|
|
caret->SetCaretDOMSelection(ourSel);
|
|
|
|
// mutual-exclusion: the selection is either controlled by the
|
|
// document or by the text input/area. Clear any selection in the
|
|
// document since the focus is now on our independent selection.
|
|
|
|
nsCOMPtr<nsISelectionController> selcon = do_QueryInterface(presShell);
|
|
nsCOMPtr<nsISelection> docSel;
|
|
selcon->GetSelection(nsISelectionController::SELECTION_NORMAL,
|
|
getter_AddRefs(docSel));
|
|
if (!docSel) return;
|
|
|
|
bool isCollapsed = false;
|
|
docSel->GetIsCollapsed(&isCollapsed);
|
|
if (!isCollapsed)
|
|
docSel->RemoveAllRanges();
|
|
}
|
|
|
|
nsresult nsTextControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
|
|
{
|
|
if (!mIsProcessing)//some kind of lock.
|
|
{
|
|
mIsProcessing = true;
|
|
if (nsGkAtoms::select == aName)
|
|
{
|
|
// Select all the text.
|
|
//
|
|
// XXX: This is lame, we can't call editor's SelectAll method
|
|
// because that triggers AutoCopies in unix builds.
|
|
// Instead, we have to call our own homegrown version
|
|
// of select all which merely builds a range that selects
|
|
// all of the content and adds that to the selection.
|
|
|
|
nsWeakFrame weakThis = this;
|
|
SelectAllOrCollapseToEndOfText(true); // NOTE: can destroy the world
|
|
if (!weakThis.IsAlive()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
mIsProcessing = false;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetFormProperty(nsIAtom* aName, nsAString& aValue) const
|
|
{
|
|
NS_ASSERTION(nsGkAtoms::value != aName,
|
|
"Should get the value from the content node instead");
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetEditor(nsIEditor **aEditor)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aEditor);
|
|
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
*aEditor = txtCtrl->GetTextEditor();
|
|
NS_IF_ADDREF(*aEditor);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetTextLength(int32_t* aTextLength)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aTextLength);
|
|
|
|
nsAutoString textContents;
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
txtCtrl->GetTextEditorValue(textContents, false); // this is expensive!
|
|
*aTextLength = textContents.Length();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::SetSelectionInternal(nsIDOMNode *aStartNode,
|
|
int32_t aStartOffset,
|
|
nsIDOMNode *aEndNode,
|
|
int32_t aEndOffset,
|
|
nsITextControlFrame::SelectionDirection aDirection)
|
|
{
|
|
// Create a new range to represent the new selection.
|
|
// Note that we use a new range to avoid having to do
|
|
// isIncreasing checks to avoid possible errors.
|
|
|
|
nsRefPtr<nsRange> range = new nsRange();
|
|
nsresult rv = range->SetStart(aStartNode, aStartOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = range->SetEnd(aEndNode, aEndOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Get the selection, clear it and add the new range to it!
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
NS_ENSURE_TRUE(selCon, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsISelection> selection;
|
|
selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsISelectionPrivate> selPriv = do_QueryInterface(selection, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsDirection direction;
|
|
if (aDirection == eNone) {
|
|
// Preserve the direction
|
|
direction = selPriv->GetSelectionDirection();
|
|
} else {
|
|
direction = (aDirection == eBackward) ? eDirPrevious : eDirNext;
|
|
}
|
|
|
|
rv = selection->RemoveAllRanges();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = selection->AddRange(range); // NOTE: can destroy the world
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
selPriv->SetSelectionDirection(direction);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::ScrollSelectionIntoView()
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
if (selCon) {
|
|
// Scroll the selection into view (see bug 231389).
|
|
return selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL,
|
|
nsISelectionController::SELECTION_FOCUS_REGION,
|
|
nsISelectionController::SCROLL_FIRST_ANCESTOR_ONLY);
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mozilla::dom::Element*
|
|
nsTextControlFrame::GetRootNodeAndInitializeEditor()
|
|
{
|
|
nsCOMPtr<nsIDOMElement> root;
|
|
GetRootNodeAndInitializeEditor(getter_AddRefs(root));
|
|
nsCOMPtr<mozilla::dom::Element> rootElem = do_QueryInterface(root);
|
|
return rootElem;
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetRootNodeAndInitializeEditor(nsIDOMElement **aRootElement)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aRootElement);
|
|
|
|
nsCOMPtr<nsIEditor> editor;
|
|
GetEditor(getter_AddRefs(editor));
|
|
if (!editor)
|
|
return NS_OK;
|
|
|
|
return editor->GetRootElement(aRootElement);
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::SelectAllOrCollapseToEndOfText(bool aSelect)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> rootElement;
|
|
nsresult rv = GetRootNodeAndInitializeEditor(getter_AddRefs(rootElement));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIContent> rootContent = do_QueryInterface(rootElement);
|
|
nsCOMPtr<nsIDOMNode> rootNode(do_QueryInterface(rootElement));
|
|
|
|
NS_ENSURE_TRUE(rootNode && rootContent, NS_ERROR_FAILURE);
|
|
|
|
int32_t numChildren = rootContent->GetChildCount();
|
|
|
|
if (numChildren > 0) {
|
|
// We never want to place the selection after the last
|
|
// br under the root node!
|
|
nsIContent *child = rootContent->GetChildAt(numChildren - 1);
|
|
if (child) {
|
|
if (child->Tag() == nsGkAtoms::br)
|
|
--numChildren;
|
|
}
|
|
if (!aSelect && numChildren) {
|
|
child = rootContent->GetChildAt(numChildren - 1);
|
|
if (child && child->IsNodeOfType(nsINode::eTEXT)) {
|
|
rootNode = do_QueryInterface(child);
|
|
const nsTextFragment* fragment = child->GetText();
|
|
numChildren = fragment ? fragment->GetLength() : 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
rv = SetSelectionInternal(rootNode, aSelect ? 0 : numChildren,
|
|
rootNode, numChildren);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return ScrollSelectionIntoView();
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::SetSelectionEndPoints(int32_t aSelStart, int32_t aSelEnd,
|
|
nsITextControlFrame::SelectionDirection aDirection)
|
|
{
|
|
NS_ASSERTION(aSelStart <= aSelEnd, "Invalid selection offsets!");
|
|
|
|
if (aSelStart > aSelEnd)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIDOMNode> startNode, endNode;
|
|
int32_t startOffset, endOffset;
|
|
|
|
// Calculate the selection start point.
|
|
|
|
nsresult rv = OffsetToDOMPoint(aSelStart, getter_AddRefs(startNode), &startOffset);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelStart == aSelEnd) {
|
|
// Collapsed selection, so start and end are the same!
|
|
endNode = startNode;
|
|
endOffset = startOffset;
|
|
}
|
|
else {
|
|
// Selection isn't collapsed so we have to calculate
|
|
// the end point too.
|
|
|
|
rv = OffsetToDOMPoint(aSelEnd, getter_AddRefs(endNode), &endOffset);
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return SetSelectionInternal(startNode, startOffset, endNode, endOffset, aDirection);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetSelectionRange(int32_t aSelStart, int32_t aSelEnd,
|
|
nsITextControlFrame::SelectionDirection aDirection)
|
|
{
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelStart > aSelEnd) {
|
|
// Simulate what we'd see SetSelectionStart() was called, followed
|
|
// by a SetSelectionEnd().
|
|
|
|
aSelStart = aSelEnd;
|
|
}
|
|
|
|
return SetSelectionEndPoints(aSelStart, aSelEnd, aDirection);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetSelectionStart(int32_t aSelectionStart)
|
|
{
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
int32_t selStart = 0, selEnd = 0;
|
|
|
|
rv = GetSelectionRange(&selStart, &selEnd);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelectionStart > selEnd) {
|
|
// Collapse to the new start point.
|
|
selEnd = aSelectionStart;
|
|
}
|
|
|
|
selStart = aSelectionStart;
|
|
|
|
return SetSelectionEndPoints(selStart, selEnd);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetSelectionEnd(int32_t aSelectionEnd)
|
|
{
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
int32_t selStart = 0, selEnd = 0;
|
|
|
|
rv = GetSelectionRange(&selStart, &selEnd);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelectionEnd < selStart) {
|
|
// Collapse to the new end point.
|
|
selStart = aSelectionEnd;
|
|
}
|
|
|
|
selEnd = aSelectionEnd;
|
|
|
|
return SetSelectionEndPoints(selStart, selEnd);
|
|
}
|
|
|
|
nsresult
|
|
nsTextControlFrame::OffsetToDOMPoint(int32_t aOffset,
|
|
nsIDOMNode** aResult,
|
|
int32_t* aPosition)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aResult && aPosition);
|
|
|
|
*aResult = nullptr;
|
|
*aPosition = 0;
|
|
|
|
nsCOMPtr<nsIDOMElement> rootElement;
|
|
nsresult rv = GetRootNodeAndInitializeEditor(getter_AddRefs(rootElement));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDOMNode> rootNode(do_QueryInterface(rootElement));
|
|
|
|
NS_ENSURE_TRUE(rootNode, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsIDOMNodeList> nodeList;
|
|
|
|
rv = rootNode->GetChildNodes(getter_AddRefs(nodeList));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(nodeList, NS_ERROR_FAILURE);
|
|
|
|
uint32_t length = 0;
|
|
|
|
rv = nodeList->GetLength(&length);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
NS_ASSERTION(length <= 2, "We should have one text node and one mozBR at most");
|
|
|
|
nsCOMPtr<nsIDOMNode> firstNode;
|
|
rv = nodeList->Item(0, getter_AddRefs(firstNode));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
nsCOMPtr<nsIDOMText> textNode = do_QueryInterface(firstNode);
|
|
|
|
if (length == 0 || aOffset < 0) {
|
|
NS_IF_ADDREF(*aResult = rootNode);
|
|
*aPosition = 0;
|
|
} else if (textNode) {
|
|
uint32_t textLength = 0;
|
|
textNode->GetLength(&textLength);
|
|
if (length == 2 && uint32_t(aOffset) == textLength) {
|
|
// If we're at the end of the text node and we have a trailing BR node,
|
|
// set the selection on the BR node.
|
|
NS_IF_ADDREF(*aResult = rootNode);
|
|
*aPosition = 1;
|
|
} else {
|
|
// Otherwise, set the selection on the textnode itself.
|
|
NS_IF_ADDREF(*aResult = firstNode);
|
|
*aPosition = NS_MIN(aOffset, int32_t(textLength));
|
|
}
|
|
} else {
|
|
NS_IF_ADDREF(*aResult = rootNode);
|
|
*aPosition = 0;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetSelectionRange(int32_t* aSelectionStart,
|
|
int32_t* aSelectionEnd,
|
|
SelectionDirection* aDirection)
|
|
{
|
|
// make sure we have an editor
|
|
nsresult rv = EnsureEditorInitialized();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (aSelectionStart) {
|
|
*aSelectionStart = 0;
|
|
}
|
|
if (aSelectionEnd) {
|
|
*aSelectionEnd = 0;
|
|
}
|
|
if (aDirection) {
|
|
*aDirection = eNone;
|
|
}
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
NS_ENSURE_TRUE(selCon, NS_ERROR_FAILURE);
|
|
nsCOMPtr<nsISelection> selection;
|
|
rv = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL, getter_AddRefs(selection));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_FAILURE);
|
|
nsCOMPtr<nsISelectionPrivate> selPriv = do_QueryInterface(selection);
|
|
NS_ENSURE_TRUE(selPriv, NS_ERROR_FAILURE);
|
|
nsRefPtr<nsFrameSelection> frameSel;
|
|
rv = selPriv->GetFrameSelection(getter_AddRefs(frameSel));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
NS_ENSURE_TRUE(frameSel, NS_ERROR_FAILURE);
|
|
nsRefPtr<Selection> typedSel =
|
|
frameSel->GetSelection(nsISelectionController::SELECTION_NORMAL);
|
|
NS_ENSURE_TRUE(typedSel, NS_ERROR_FAILURE);
|
|
|
|
if (aDirection) {
|
|
nsDirection direction = typedSel->GetSelectionDirection();
|
|
if (direction == eDirNext) {
|
|
*aDirection = eForward;
|
|
} else if (direction == eDirPrevious) {
|
|
*aDirection = eBackward;
|
|
} else {
|
|
NS_NOTREACHED("Invalid nsDirection enum value");
|
|
}
|
|
}
|
|
|
|
if (!aSelectionStart || !aSelectionEnd) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsContentUtils::GetSelectionInTextControl(typedSel,
|
|
GetRootNodeAndInitializeEditor(), *aSelectionStart, *aSelectionEnd);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/////END INTERFACE IMPLEMENTATIONS
|
|
|
|
////NSIFRAME
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* aAttribute,
|
|
int32_t aModType)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsISelectionController* selCon = txtCtrl->GetSelectionController();
|
|
const bool needEditor = nsGkAtoms::maxlength == aAttribute ||
|
|
nsGkAtoms::readonly == aAttribute ||
|
|
nsGkAtoms::disabled == aAttribute ||
|
|
nsGkAtoms::spellcheck == aAttribute;
|
|
nsCOMPtr<nsIEditor> editor;
|
|
if (needEditor) {
|
|
GetEditor(getter_AddRefs(editor));
|
|
}
|
|
if ((needEditor && !editor) || !selCon)
|
|
return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
|
|
nsresult rv = NS_OK;
|
|
|
|
if (nsGkAtoms::maxlength == aAttribute)
|
|
{
|
|
int32_t maxLength;
|
|
bool maxDefined = GetMaxLength(&maxLength);
|
|
|
|
nsCOMPtr<nsIPlaintextEditor> textEditor = do_QueryInterface(editor);
|
|
if (textEditor)
|
|
{
|
|
if (maxDefined)
|
|
{ // set the maxLength attribute
|
|
textEditor->SetMaxTextLength(maxLength);
|
|
// if maxLength>docLength, we need to truncate the doc content
|
|
}
|
|
else { // unset the maxLength attribute
|
|
textEditor->SetMaxTextLength(-1);
|
|
}
|
|
}
|
|
rv = NS_OK; // don't propagate the error
|
|
}
|
|
else if (nsGkAtoms::readonly == aAttribute)
|
|
{
|
|
uint32_t flags;
|
|
editor->GetFlags(&flags);
|
|
if (AttributeExists(nsGkAtoms::readonly))
|
|
{ // set readonly
|
|
flags |= nsIPlaintextEditor::eEditorReadonlyMask;
|
|
if (nsContentUtils::IsFocusedContent(mContent))
|
|
selCon->SetCaretEnabled(false);
|
|
}
|
|
else
|
|
{ // unset readonly
|
|
flags &= ~(nsIPlaintextEditor::eEditorReadonlyMask);
|
|
if (!(flags & nsIPlaintextEditor::eEditorDisabledMask) &&
|
|
nsContentUtils::IsFocusedContent(mContent))
|
|
selCon->SetCaretEnabled(true);
|
|
}
|
|
editor->SetFlags(flags);
|
|
}
|
|
else if (nsGkAtoms::disabled == aAttribute)
|
|
{
|
|
uint32_t flags;
|
|
editor->GetFlags(&flags);
|
|
if (AttributeExists(nsGkAtoms::disabled))
|
|
{ // set disabled
|
|
flags |= nsIPlaintextEditor::eEditorDisabledMask;
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_OFF);
|
|
if (nsContentUtils::IsFocusedContent(mContent))
|
|
selCon->SetCaretEnabled(false);
|
|
}
|
|
else
|
|
{ // unset disabled
|
|
flags &= ~(nsIPlaintextEditor::eEditorDisabledMask);
|
|
selCon->SetDisplaySelection(nsISelectionController::SELECTION_HIDDEN);
|
|
if (nsContentUtils::IsFocusedContent(mContent)) {
|
|
selCon->SetCaretEnabled(true);
|
|
}
|
|
}
|
|
editor->SetFlags(flags);
|
|
}
|
|
else if (!mUseEditor && nsGkAtoms::value == aAttribute) {
|
|
UpdateValueDisplay(true);
|
|
}
|
|
// Allow the base class to handle common attributes supported
|
|
// by all form elements...
|
|
else {
|
|
rv = nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute, aModType);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetText(nsString& aText)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
if (IsSingleLineTextControl()) {
|
|
// There will be no line breaks so we can ignore the wrap property.
|
|
txtCtrl->GetTextEditorValue(aText, true);
|
|
} else {
|
|
nsCOMPtr<nsIDOMHTMLTextAreaElement> textArea = do_QueryInterface(mContent);
|
|
if (textArea) {
|
|
rv = textArea->GetValue(aText);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextControlFrame::GetPhonetic(nsAString& aPhonetic)
|
|
{
|
|
aPhonetic.Truncate(0);
|
|
|
|
nsCOMPtr<nsIEditor> editor;
|
|
nsresult rv = GetEditor(getter_AddRefs(editor));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIEditorIMESupport> imeSupport = do_QueryInterface(editor);
|
|
if (imeSupport) {
|
|
nsCOMPtr<nsIPhonetic> phonetic = do_QueryInterface(imeSupport);
|
|
if (phonetic)
|
|
phonetic->GetPhonetic(aPhonetic);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
///END NSIFRAME OVERLOADS
|
|
/////BEGIN PROTECTED METHODS
|
|
|
|
bool
|
|
nsTextControlFrame::GetMaxLength(int32_t* aSize)
|
|
{
|
|
*aSize = -1;
|
|
|
|
nsGenericHTMLElement *content = nsGenericHTMLElement::FromContent(mContent);
|
|
if (content) {
|
|
const nsAttrValue* attr = content->GetParsedAttr(nsGkAtoms::maxlength);
|
|
if (attr && attr->Type() == nsAttrValue::eInteger) {
|
|
*aSize = attr->GetIntegerValue();
|
|
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// END IMPLEMENTING NS_IFORMCONTROLFRAME
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList)
|
|
{
|
|
nsresult rv = nsContainerFrame::SetInitialChildList(aListID, aChildList);
|
|
|
|
nsIFrame* first = GetFirstPrincipalChild();
|
|
|
|
// Mark the scroll frame as being a reflow root. This will allow
|
|
// incremental reflows to be initiated at the scroll frame, rather
|
|
// than descending from the root frame of the frame hierarchy.
|
|
if (first) {
|
|
first->AddStateBits(NS_FRAME_REFLOW_ROOT);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
txtCtrl->InitializeKeyboardEventListeners();
|
|
|
|
nsPoint* contentScrollPos = static_cast<nsPoint*>
|
|
(Properties().Get(ContentScrollPos()));
|
|
if (contentScrollPos) {
|
|
// If we have a scroll pos stored to be passed to our anonymous
|
|
// div, do it here!
|
|
nsIStatefulFrame* statefulFrame = do_QueryFrame(first);
|
|
NS_ASSERTION(statefulFrame, "unexpected type of frame for the anonymous div");
|
|
nsPresState fakePresState;
|
|
fakePresState.SetScrollState(*contentScrollPos);
|
|
statefulFrame->RestoreState(&fakePresState);
|
|
Properties().Remove(ContentScrollPos());
|
|
delete contentScrollPos;
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
bool
|
|
nsTextControlFrame::IsScrollable() const
|
|
{
|
|
return !IsSingleLineTextControl();
|
|
}
|
|
|
|
void
|
|
nsTextControlFrame::SetValueChanged(bool aValueChanged)
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
if (mUsePlaceholder) {
|
|
int32_t textLength;
|
|
GetTextLength(&textLength);
|
|
|
|
nsWeakFrame weakFrame(this);
|
|
txtCtrl->SetPlaceholderClass(!textLength, true);
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
txtCtrl->SetValueChanged(aValueChanged);
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsTextControlFrame::UpdateValueDisplay(bool aNotify,
|
|
bool aBeforeEditorInit,
|
|
const nsAString *aValue)
|
|
{
|
|
if (!IsSingleLineTextControl()) // textareas don't use this
|
|
return NS_OK;
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
|
|
|
|
NS_PRECONDITION(rootNode, "Must have a div content\n");
|
|
NS_PRECONDITION(!mUseEditor,
|
|
"Do not call this after editor has been initialized");
|
|
NS_ASSERTION(!mUsePlaceholder || txtCtrl->GetPlaceholderNode(),
|
|
"A placeholder div must exist");
|
|
|
|
nsIContent *textContent = rootNode->GetChildAt(0);
|
|
if (!textContent) {
|
|
// Set up a textnode with our value
|
|
nsCOMPtr<nsIContent> textNode;
|
|
nsresult rv = NS_NewTextNode(getter_AddRefs(textNode),
|
|
mContent->NodeInfo()->NodeInfoManager());
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
NS_ASSERTION(textNode, "Must have textcontent!\n");
|
|
|
|
rootNode->AppendChildTo(textNode, aNotify);
|
|
textContent = textNode;
|
|
}
|
|
|
|
NS_ENSURE_TRUE(textContent, NS_ERROR_UNEXPECTED);
|
|
|
|
// Get the current value of the textfield from the content.
|
|
nsAutoString value;
|
|
if (aValue) {
|
|
value = *aValue;
|
|
} else {
|
|
txtCtrl->GetTextEditorValue(value, true);
|
|
}
|
|
|
|
// Update the display of the placeholder value if needed.
|
|
// We don't need to do this if we're about to initialize the
|
|
// editor, since EnsureEditorInitialized takes care of this.
|
|
if (mUsePlaceholder && !aBeforeEditorInit)
|
|
{
|
|
nsWeakFrame weakFrame(this);
|
|
txtCtrl->SetPlaceholderClass(value.IsEmpty(), aNotify);
|
|
NS_ENSURE_STATE(weakFrame.IsAlive());
|
|
}
|
|
|
|
if (aBeforeEditorInit && value.IsEmpty()) {
|
|
rootNode->RemoveChildAt(0, true);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!value.IsEmpty() && IsPasswordTextControl()) {
|
|
nsTextEditRules::FillBufWithPWChars(&value, value.Length());
|
|
}
|
|
return textContent->SetText(value, aNotify);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::GetOwnedSelectionController(nsISelectionController** aSelCon)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aSelCon);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
*aSelCon = txtCtrl->GetSelectionController();
|
|
NS_IF_ADDREF(*aSelCon);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsFrameSelection*
|
|
nsTextControlFrame::GetOwnedFrameSelection()
|
|
{
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
return txtCtrl->GetConstFrameSelection();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::SaveState(nsIStatefulFrame::SpecialStateID aStateID, nsPresState** aState)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aState);
|
|
|
|
*aState = nullptr;
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
|
|
if (rootNode) {
|
|
// Query the nsIStatefulFrame from the HTMLScrollFrame
|
|
nsIStatefulFrame* scrollStateFrame = do_QueryFrame(rootNode->GetPrimaryFrame());
|
|
if (scrollStateFrame) {
|
|
return scrollStateFrame->SaveState(aStateID, aState);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::RestoreState(nsPresState* aState)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aState);
|
|
|
|
nsCOMPtr<nsITextControlElement> txtCtrl = do_QueryInterface(GetContent());
|
|
NS_ASSERTION(txtCtrl, "Content not a text control element");
|
|
|
|
nsIContent* rootNode = txtCtrl->GetRootEditorNode();
|
|
if (rootNode) {
|
|
// Query the nsIStatefulFrame from the HTMLScrollFrame
|
|
nsIStatefulFrame* scrollStateFrame = do_QueryFrame(rootNode->GetPrimaryFrame());
|
|
if (scrollStateFrame) {
|
|
return scrollStateFrame->RestoreState(aState);
|
|
}
|
|
}
|
|
|
|
// Most likely, we don't have our anonymous content constructed yet, which
|
|
// would cause us to end up here. In this case, we'll just store the scroll
|
|
// pos ourselves, and forward it to the scroll frame later when it's created.
|
|
Properties().Set(ContentScrollPos(), new nsPoint(aState->GetScrollState()));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTextControlFrame::PeekOffset(nsPeekOffsetStruct *aPos)
|
|
{
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|